Good-looking slums thousands of people, interesting souls, one? What jokes, good-looking pocket interesting soul, I have to! But just like I bought a mobile phone, I am very tangled, oh, I like it, but I can only choose one. This time, PAMU Z 1, in addition to supporting active noise reduction, battery life, or the first support for replacement of the girdle, the true wireless Bluetooth headset. Colorful color matching makes this headset have more "personality."

This time I got the default as the blue version, three-stage stitching and very viable color matching, very suitable for young people. Moreover, the entire headphones are treated with fine sand, which is less likely to contam with fingerprints and oil compared to bright surface treatment.

There is a transparent PAMU label on the right side of the headset, and the white light is lit when the headset charging and charging the charging, which is equivalent to the charging reminder function.

PAMU Z1 still supports the wireless charging Bluetooth headset, and then in conjunction with the price of its true wireless noise-saving headset, it is considered a conscience.

At the bottom of the Type-C charge, see the Type-C interface is popular, and the true wireless Bluetooth headset is generally started, I am very happy as a digital enthusiast. Almost all devices around me are Ype-C interface, and take a Type=C to charge.

To look at the headphones body, PAMU Z1 is an in-ear noise-saving headset, and the three-stage color matching of the charging box. The position of Pamu logo relies on the touch area, and a variety of touch shortcuts can be selected, in the PAMU APP. You can modify the shortcut operation. As for this flat appearance, it is still like a long-term look like AirPods, and there is no problem with the radish vegetables. It is not a problem, and a wide range of sports is also There is no problem.

There are 3 earplugs in the package accessories, TYPE-C chargeline and storage bags are different. This storage bag is the material of leather, not like other equivalents, overall texture will be much better.

The appearance, which was mainly attracted to me. The mainly detachable waist seal design, as well as this day blue is really beautiful, very good. Other ways to get the textured texture is also very comfortable, others are very square, there is nothing special.

The PAMU Z1 employs a 10 mM titanium composite diaphragm unit, and the unit resistance is 32Ω, coupled with six EQ sound captured in the app, and the overall performance is normal. Supports SBC and AAC regular audio encoding.

In order to better test the sound quality performance of PAMU Z1, I chose the two songs of Tsai Qin and "Hotel California", and close all EQ sound effects in the app, with the default mode for testing. Selecting these two songs because Cai Qin’s "ferry" is very suitable for testing high and low frequency and vocal performance. Cai Qin’s voice is really beautiful, "Hotel California" is very much specifically, you can test dynamic range, musical instrument positioning and Sound field performance. Also selected 192.0 kHz original source, you can see that the file size is relatively large, minimizing the impact of the sound source on the sound quality test.

The first is "ferry", the people of Pamu Z1 show unexpectedly, the Cai Qin voice is very full, PAMU Z1 has made the Cai Qin’s voice, but it is a pity that the low frequency is not enough; then "Hotel California" The dynamic range performance is good, the sound is clear, but there is a small problem, the whole sound area is not enough, it feels a bit flat.

However, as a real wireless noise reduction Bluetooth headset, I think there is no nice, after all, a 1999 fruit headset is also white. But I still emphasize that the sound quality is very metaphor, and the understanding of music varies from person to person. It is recommended that you can go online or buy a pair of earphones really hear.

Pama app experience, EQ sound, low latency, OTA upgrade firmware, personalized buttons set, etc., this is the mainstream. There are still quite a few places for setting adjustments.

Finally, it is the end of life, and the official claims to turn on noise reduction mode, single-line is 6 hours.

Test conditions: Headphone full power start test The number of middle numbers.

After the measurement, the renewal time after the noise reduction mode is opened, and the time is very close to the official declaration time. In the case of volume and weight control, such a battery life is generally satisfied. The life of the true wireless Bluetooth headset is very important consideration, which is more important than the sound quality.

Summary: As a truthless wireless active noise reduction Bluetooth headset, I think I really have no picky, he almost gives you the price of this price, and the entire battery life of Pamu Z1 is It is also possible to satisfy everyday use. If you are a user who is not enough, you may feel that there is no need to put too much money in your headphones, pursue a good use, then Pamu Z1 is a good choice.

You can see that I am praise this headset, because it is so ugly? Of course, it also has some problems but when I think it only needs more than 300, I have the highest 40DB noise reduction depth, Bluetooth 5.2, and IPX4 dustproof waterproof, enough sound quality and good look, I think there is nothing good. picky. Why is it so strict for all things? It is a very reasonable thing to get out of price.

September 9, 2021 (Thursday) from 19:00 to 20:30, byJingbao Digital Audiovisual Investment AllianceSocially audio-visual China · Creating the first phase of ""Orientation to the road to the Yuan Universe, who is the number one player?"For topics,InviteBritish Angel Fund PartnerWang Wei,Join the founder of science and technology, the universe sponsor Liu Hua Yang, founder of IFGames StudioQian QingquanConduct online sharing discussions.

Tell!

1. In the past ten years, we have not reached the experience of the number one player.

2. The most important stage at this stage is the construction of the underground infrastructure with very high deterministic undercale.

3, "No. 5 players" in the Yuan Coso, may not be a company, it should be a decentralized organization.

4, the future Yuan universe may not be human beings, but the artificial AI makes it.

The following is the idea of ??this program guest point:

Beijing New Fund Song Gang: Why is the Yuan Universe Ignore when I was now, not at other times? Is this an accidental event or a chapter? Is there a deeper reason and logic behind?

Yino Angel Fund Wang Wei:I think it is in line with the scientific law of things, it requires software and hardware technology to continuously improve and innovate. The era of mobile Internet is the most important thing to use the application, interactive, processing capabilities, and support of bandwidth. Yuan Universe has now reached a stage that can produce basic consensus. It is more like an early Internet, although there is a basic engineering, but if you really want to form a very quality experience and delivery, let you really go to life in the original state, there is a long way to go, I think this cycle At least 10 years.

Image Source: Same Technology

Same science and technology Liu Hua Yang:I think it is even more than inevitably. The Yuan Universe is definitely a foam than the opportunity in the short term, but the chance of technically driven people and information behind the Yuancai, the opportunity between people and people’s new output value is huge. . We all use technologies to restructuring information, then use new forms, new terminals to provide experience, in the last 10 years, we can’t reach the number one player who is imagined, maybe It also takes a longer time. So 10 years I definitely define it: it is not a real Web3.0, or a transitional Web 2.5 era.

Image Source: Same Technology

Web2.5 era information "virtual real symbiosis", AR glasses, VR helmets, mobile phones and other terminals, the real world is crucial with the Internet’s interconnection entrance of the digital world, everyone sees that the global AR World Map Company has been acquired in recent years, It has also received the invitation several times.

Web3.0, the information "virtual realism", there will be wearable equipment of the whole sensory, go to the centralized content and AIGC productive force, the sea quotation is seamlessly interconnected, the universe is built and the earth real world 1: 1 The virtual solid-symbiotic map of the cosmic universe economy, everyone can build, create, experience, transaction, social, and grow.

The Web4.0 era is a true metocular era, we may pass the brain interface and the AI ??and system interconnection, enter the uneven virtual real society, most of the production and service work includes creation, all completed by Ai, curiosity Imagination creates everything.

Image Source: Same Technology

Ifgames studio Qian Qingquan:When we used the PC to conduct network behaviors and activities, we can’t deceive your own brain. Now there is virtual reality, as well as VR / MR / AR and other technologies, it is possible to directly communicate directly with the brain aspect. In the world of VR, such as some traditional hosts, computers, and in the movie hospital watch, we need to tell yourself for a long time, in order to feel the same, understand it. Directors and producers will also make the role in the film and the game as the link between the audience, and can drive the story in this kind of congrssion. In the post-virtual reality, we are likely to encounter, no longer able to spend the role of movies and games, but may have too much a lot, you need to keep remind yourself that this is not a real world. . But I think this is still an ideal state, which is also the ultimate form of all art creators.

Image source network

We are now in the early stage, I think at least three basic conditions can be made.

First, it is necessary to pass or borrow some kind of technology to exchange exchange with the real world, such a world can be called a realistic thing. We have reached a part in the mobile Internet era. For example, when you visit Taobao, it is no longer like 20 years ago, it is a virtual thing. When you look at a product or buy something, there will be a feeling of shopping malls, and it also produces an exchange channel with reality.

Second, go to centering, not an environment that is centralized by local users. For example, some games we often play, even if its virtual world is already very delicate, but when you turn off your computer, this world does not exist. Because it is a thing that only has your computer; but the WeChat’s friend circle will have this feeling, it will continue to run after you turn it, it is not centered on you.

The third point is that the virtual display technology is played, allowing it to exceed the interaction of the class computer information.

Image source network

Beijing New Fund Song Gang: What kind of world is in your heart? What are the significant features?

Yino Angel Fund Wang Wei:This concept of Yuanhe is mainly an investor and entrepreneur, industry practitioners, and a concept that can reach consensus in order to improve communication efficiency. For example, sharing the economy is the concept created. Because now in investment, every definition is very complicated, each industry is very huge, there are very many modules, so you will take a consensus concept in order to improve communication efficiency.

What is the future of Yuan Coso? It is still not possible to predict what the Yuan Universe will eventually be, we can imagine and predict it is just the things in the film and television work or the science fiction, more things are hard to imagine.

From the perspective of investors, you must first pay attention to its dimensions such as its entire data, technical maturity curves. I think there is a very large number of underlying technologies in the Yuancos, but it is generally in the early days of the technical maturity curve, which means that the probability of failure to do applications is very large. For example, if you want to be a consumer electronics, its basic technology has not yet been developed, and the supply chain factory has no equipment to produce, you have to do this product to sell, the result must be bad. So the most important thing in the stage is the construction of those with very high definitely underground infrastructure. For example, the 5G network being doing now, and the underlying equipment of VR / AR, there is still a lot of innovation opportunities in these respects. This is also the focus of our current investment.

Image source network

Same science and technology Liu Hua Yang:The Yuan Universe speaks from the narrow sense is a book in a spiritual immersion scenario or a full experience, a movie, a game, or even a virtual role, can be a metacular universe, can expand a lot of things. But the generalized metacles, in fact, all we are able to feel in the physical world and the virtual world, including species, AI, NPC, etc. in it, the definition of all things together and the economy circulated above it , The information of the information and the value of the precipitation, that is, a technique of adding information, or even a new state of civilization.

In addition, you have not discussed the two levels, logic layers and value layers.

The core of the logic layer is actually centralized and decentralized whether can coexist within a long time? For example, we have launched the universe with a basic setting: the first is to go to the centralized economic and organizational governance; the second is multi-center core technical product service team, because you are hard to use to go to the centering way Output of the hard core; the third is a fully open interface protocol, we hope to break the big factory experience island, such as the experience field I set up in the Forbidden City, let the virtual character and NPC interact with live people, causing new plots .

The value layer involves whether the person can enter the virtual world, we can make the entire ideology completely internetize. I think the problem that may be solved in the future is not to go to the center of the people, but when we want to go to the center, it will be killed by Ai, because it has far more than our ability. Will it go to the world? Another point is that the basis of the economy is a scarcity. It requires costs in physical world production, such as making a mobile phone. Its chip has cost, and the cost marginal decline is very slow. But in the virtual world, this logic is completely different. When we design a good thing, its copy cost is equal to 0, in the virtual world, the scarcity of the physical world is not established, this is what I think is needed It is necessary to take into account a certain stage and size.

Image Source: Same Technology

Ifgames studio Qian Qingquan:I have been discussing a question in the first two days. Is this world essence spread or passed? For example, I gave me my apple, I didn’t have this apple. This is a pass; whether spreading this scarce? For example, in the game, if the equipment is not a scarce, we share the top equipment to everyone, although this game itself is very fun, but it has no value, its structure is infinitely flat, what is it ultimately?

For the future prediction of Yuancai, in the perspective of creation, the tool I think that creation has continuously iterated, allowing the creator to re-create the authority. For example, 10 years ago, a few small teams, even if your technology is fine, it is very unrealistic. But now it is true that it is very pleasant. In the future, I think the creative will be more decentralized, and a person can make very good content. However, this will also cause the content of the product to become more and more fast, and the content will become more shallow.

Image source network

Beijing New Fund Song Gang: In the event of Yuancos, the future number one player or head company is most likely in which scene is born?

Same science and technology Liu Hua Yang:Ideally, I think it may not be a company, it should be a decentralized organization. I am more important to "what is going to spend?", In the physical world, our most important problem is to solve production, and now the production capacity of the virtual world is much lower than our needs, but it may suddenly have a long demand for a certain day. After this mutation, more consumption’s main body is cultural, how to better consume higher level of cultural information, I think it can last long, it is definitely not a flower.

Ifgames studio Qian Qingquan:I think the engine development, the Internet of Things, artificial intelligence also has the possibility of giants in these aspects of network communication technologies. There will also be a lot of excellent creative companies in interaction technology, which will also produce a lot of giants. However, I am more worried that China is at the technical level. At present, there is no ability to compete with other countries in the engine. We are also behind the artificial intelligence. .

Image source network

Beijing New Fund Song Gang: What are the investment opportunities in the development of Yuancai? Is it a state in which a winner is eaten or a hundred flowers? What directions we are more concerned or opportunities?

Same science and technology Liu Hua Yang:I hope it is a state of flowering, because it is even more interesting, but I think it is necessary to consider a problem. We haven’t realized that AI may bring potential energy or even threats that Ai may bring in this regard. The so-called real winner is a super node, it is possible not to make human beings, but it is made of artificial AI. This may be a thing we need to be cautious, although it may be very far away.

With regard to investment, I think the underlying hardware infrastructure, terminal layer, and component subdivision in the terminal are opportunities. But it is difficult to say a small company that is Ar / VR glasses. It can be acquired or it can grow into a giant. I think this opportunity is very embarrassing. Some new coding methods, cloud computing, and digital engine infrastructure, rendering ends, and applications in various industries, as well as components in various industries, and components in various industries.

Ifgames studio Qian Qingquan:As an entrepreneur, if I do investment, I may pay more attention to the early situation. How long does this person don’t have to do this, and I will pay attention to it in a certain field. Is he really have a very deep understanding? opinion. Whether it is in a certain industry, because we have changed in the market, it is no longer chasing people, which has been compete with the country in the world’s first position, and we have to do innovation. I think that investment VR content and artificial intelligence is a particularly good point in time. I know the comrades who survived in the last cycle. They all have got a relatively high valuation, and they have got financing.

This summer, MediaTek released the DNT 5G open architecture, for mobile phones to bring a new way to build brand flagship differentiation. Since then get vivo, a plus, millet, realme use, have landed a variety of mainstream products. Recently, OPPO year released a new heavy machine Reno7 Pro, equipped with a built by DNT 5G open architecture DNT 1200-MAX, members of the DNT Adds heavy 5G open architecture chip family.

OPPO Reno7 Pro blockbuster release, equipped with DNT DNT 1200-MAX 5G-based open architecture.

Recalling the dynamic since the release DNT 5G open architecture, it can be seen DNT 5G open architecture is gradually narrow the gap between chip makers and handset manufacturers a flexible and open manner enabling flagship phone differentiated experience. In addition to the DNT 1200-MAX, MediaTek and vivo, a plus, millet, realme and other end brands to reach the depth of cooperation to DNT 1200, combined with the different needs of various brands together to create a DNT 1200-AI, days Breguet 1200-ULTRA, DNT 1200-vivo such as number of platforms, terminal model equipped with both performance and power consumption, has won the praise of users.

DNT 5G open architecture has received several major mobile phone brands use, has won praise users

The current mobile phone market is facing a bottleneck homogenization, MediaTek launch DNT 5G open architecture, and OPPO, vivo, millet, plus a head and other manufacturers to research and development, giving flagship models more distinctive selling point, let’s flagship market is no longer stereotyped .

Based on DNT’s flagship platform, the release of terminal differentiation potential

From DNT 5G open architecture technology point of view, it provides nearly the bottom of the open source, so that engineers can customize key features include AI processing, camera processing engine, multimedia experience, mixing multi-processing DNT 5G open architecture, to achieve FBI needs of different depths. Mobile phone manufacturers can design for the flagship product differentiation, and MediaTek together to build a stronger, more personalized flagship phone.

The same is the strong performance of DNT 1200, in the depths of different manufacturers FBI, the birth of a distinctive mobile platform. To DNT 1200-MAX, for example, OPPO Reno7 series was named to the 2021 League qualifying hand travel professional is recommended to use the machine, security Bunny ran up to 700,000 points, the game is easy to see strengthened its properties.

DNT 5G launch an open architecture, it gives full play to create space for terminal manufacturers flagship product

By DNT 5G open architecture, terminal manufacturers gained further build the flagship product of "weapon" that can create differences of the flagship phone, to meet consumer demand for personalized flagship phone. I believe that with the development of DNT 5G open architecture, the future will be more like DNT 1200-MAX, DNT 1200-AI, DNT 1200-ULTRA, DNT 1200-vivo such a differentiated selling high-performance platform born, bringing more innovation and surprises for the mobile phone market.

As the traditional manufacturing leader of Longkou Fans, in recent years, the double tower food has not only achieved innovative development, which not only realizes the transformation and upgrading from Longkou fan to pea protein, but also through digitization, realization of digital management and production management. Convergence development, driving traditional manufacturing management upgrades.

Data-construction construction of double tower food, based on the mission of the food manufacturing industry in the company, pay attention to food safety, food quality, food costs, provide peace of mind, comfortable green, and non-pollutable food that eats.

Double tower food through the construction of business data, promoting the company’s overall business, selling sales, production, finance, supply chain, equipment management, procurement, etc., through ERP, OA, MES, EMS, DCS, all-round advancement Informatization management, forming data sources of large data internal data. Actively promote the company’s large data on enterprise safety production management, and the quality control of enterprises, the quality control, the warning, control, traceability and analysis of the daily operation of the company, so that the company’s strategic development is real landing.

Digital transformation of customer strategy, combined with new retail concepts, and construct a comprehensive intelligencer industry-centered intelligence enterprise in promoting marketing fields in the company’s sales system is the main goal of enterprise digital transformation. Focusing on how to transform from the past product-centered, combined with product and customer, comprehensively examine the shortcomings and deficiencies of the current customer strategy, from the customer’s full journey experience, Plastic products meet customer value logic, formulating products and customer ecological strategies in line with their own business.

Digital transformation business strategy, combined with the company’s comprehensive budget system, realizing the full digital transformation of the company’s operations, will promote business changes, process reconstruction, business model innovation, and digital transformation nature, which is the transformation of business, scientific and digital business transformation strategy It is the core content of digitized transformation. Enterprises can lead the company, or digitally transformed successful enterprises, the business transformation and process recreation and model innovation, draw experience, combined with their own main business system, and scientifically develop the main business strategy.

The intelligent strategy of digital transformation combines production process and production implementation requirements, opens the connection of smart equipment and company data, layout artificial intelligence strategy, promoting artificial intelligence technology in various business links in enterprises, accelerating the introduction of the market has matured Class business robot, promote the use of human agency, enhance intelligence, assist intelligence, promote intelligent transformation of traditional business systems, formulate artificial intelligence strategy goals, and realize comprehensive intelligent upgrading of enterprises.

The organizational strategy of digital transformation is an important guarantee for the implementation of digital transformation. Enterprises should organize the strategy, as the primary strategy of digital transformation, serious research leading companies, leading organizations, team organizational architecture and operation characteristics, to formulate The overall transformation strategy, objectives, tasks of organizational transformation, will implement organizational changes to leadership, departments and each employee, promote organizational change innovation, and stimulate tissue.

Digital transformation data strategy. Constructing data as the core production factor, data as the main production data is an important sign in promoting the production of enterprises in the production of enterprises. In transformation, the data strategy should be used as a core strategy of enterprise digital transformation. The success of the industry’s internal and external leaders in data acquisition, data management, data modeling, data analysis, data application, data value, etc. Experience, especially in terms of data-driven business innovation, develop enterprise-level data strategies, to coordinate business in digital transformation, integration, innovative applications.

Fusion strategy for digital transformation. Solve the status quo of digital costs and resource shortages in the company itself, in a very passive situation. In digital transformation, active attack, becoming passive, active, developing advanced technical strategy, integrating new digital technology such as Internet, Internet of Things, big data, artificial intelligence, 5G, cloud computing, block chain, is included in the company’s technology In the management application system, a number of enterprise digital ecological cloud systems combined with multiple forms such as self-developed drive, procurement assist, PaaS, SaaS integration.

November 22 – 23, Shenzhen Futian District People’s Government, Shenzhen Futian District Science and Technology Innovation Bureau and the Guangdong-Hong Kong Macao Digate District Digital Economic Research Institute ("Idea") jointly organized the IDEA Conference. Director of the Idea Shouyuan, foreign academician of the US National Academy of Engineering, External Academician of the UK Royal Engineering, Double Professor Tsinghua University Double Professor Shen Yanyong released a number of prociation teams and Guangdong and Hong Kong, Macau Duwan District, Association A large-scale open medical knowledge map (Biomedical Informatics Ontology System, referred to as "BIOS").

Shenyang explains in the BIOS conference

Medical knowledge map is a special database consisting of biomedical concept name, concept classification, conceptual relationship, and corresponding ID system. It is used to support medical natural language processing, artificial intelligence modeling, and industry data exchange. It is medical data and One of the most important infrastructure in artificial intelligence is a strategic impact on industry development. The National Medical Library of the US National Health Center has developed and developed in 1986, the unified Medical Language System, referred to as "UMLS") is the most authoritative English medical knowledge map, which is the English national medical data technology and The development of the industry made an excellent contribution. For a long time, the lack of large-scale open medical knowledge maps in the Chinese field is one of the main constraints of my country’s medical big data and artificial intelligence industry.

Description of the number of entities and relationships included in the BIOS knowledge map

Medical naming entity identification demonstration based on BIOS knowledge map

In order to solve the lack of medical knowledge maps in the Chinese field, and further enhance the construction level of medical knowledge maps in the international scope, Yu Zun leads the team to conduct a five-year technical research, and has developed Chinese based on map segmentation and depth learning. Chinese Electronic medical records do not supervise multi-granular particless words and terminology extraction, knowledge determined by medical terms to quantization and regularization, high-throughput medical relationship, biomedical translation, etc. Cooperating with the Idea Research Institute in November 2020 to reach a cooperation. With the support of leading algorithms, powerful strength and oversized corpus data, only in just one year, the two teams started from the original underlying medical terminology, and established a new Chinese and English bilingual medical knowledge map with complete independent intellectual property rights. BIOS, its size is close to existing authoritative knowledge map UMLs, and forming a multi-point transcendence in content quality.

The BIOS is currently published (http://bios.idea.edu.cn). At the same time, adhering to the comprehensive improvement of the development of China’s medical big data and artificial intelligence industry, BIOS is in the near future to open full data downloads with CCBY-NC-ND protocol.

In the future, Tsinghua University Statistical Research Center will cooperate with the IDEA Research Institute and more domestic top hospitals, continuously expand the content of BIOS and improve their quality. This will not only make the basic improvement of medical high data and artificial intelligence industries, but also the radiation international and drive the global industry.

Previous chapter we talked "product managers should not understand the underlying logic of technology", have never seen students can read it first, and then come back to see that this chapter content may understand more profound.

Due to the reason, the last chapter does not explain the specific content of the technology, this chapter will be aroundThinking collision, workflow, basic technology, technical terms, communication skillsAll the dimensions are explained, all the content is the Internet content, strive to describe the technical content in a simple language, so that non-technical products can be easily understood and learned.

I understand the product thinking is the root cause of the analysis and the root cause of analysis and whether it needs to be resolved, and then proposes a specific solution and the process of standardization and product chemical;

Just like the title of writing, the proppal may be a problem, a phenomenon, a feeling, an emotion, even a result, we have to understand his true intention, find effective arguments and arguments Solution, you can argue from multiple angles, and we are required to do it when arguing:

1. There are opinions and positions: could not appear uneven, meaningless content
2. Is an overall: unrelated content
3. Strict and logic, self-contained content

The entire process is a layer-by-layer process and there is an uncertainty. The problem of analyzing may be wrong, and the proposed solution may not solve the problem, because the outbuness of the result is only considered the solution. Sex, can solve the user’s problem, and how to improve the probability of successful solutions, not think too much to implement the way.

Technical thinking

Technical thinking is a kindProgram implementationThe way of thinking, based on the data that has been confirmed and determined, and fromThree variables such as influence face, encoding complexity, investment costAssess the process of realizing difficulty;

It is a bit like a solution of solution. In known mathematical formulas, there are many solutions, but there is only one solution, but the answer will only be solved and don’t solve the two results. If you don’t find the answer, or the title is It is wrong;

When thinking collides, most arguments are contradictory and logic before and after product logic, so that it is necessary to develop their own brain tonic logic, which has a great uncertainty in the development of their hearts, technical thinking is not good at solving uncertainty Therefore, it will be constantly questionable to fix confirmation. As the product manager, we should try to eliminate this uncertainty when advancing.

Then, due to the lack of thinking in the realization, it was found that the realization of excessive decline was discovered after the evaluation, and the development of the instinct, and questioned whether the topic was correct. At this time, we need to throw demand value (opinion and position) to strengthen The purpose of demand, the production ratio of high demand, so that the development can feel the meaning of completion, so that the corresponding plan is proposed to reduce the difficulty in reducing the implementation according to the demand purpose;

The product manager can not talk about "why you want to do this" at the beginning, but it must be a prompt to answer in a timely, with professional attitude make the demand complete, echo before and after;

When doing demand, some feelings may have obstacles, first do advance communication, pre-judgment in advance, coding complexity, investment costs, and do full logic thinking, or properly modify yourself Solution to meet the optimal solution of the product, this is a certain technical thinking.

Post division of labor and responsibilities

• UI design: design for software human-computer interaction design, responsible for page beauty view, cutting
• Front end: The design of the design is converted into the software interface or HTML page that can be operated, responsible for product interface and interaction
• Back end: Provide database, platform and interface design, responsible for functional logic implementation and data storage processing
• Test: The product developed by the acceptance is consistent with expectations, responsible for the quality
• DBA: Responsible for the management and operation of the database, guarantee the stability, safety, completeness, and high performance of the database
• Operation and Maintenance: Operation and maintenance of various phases of the network, server, system environment, service cycle, reaching an uniform acceptable state in cost, stability and efficiency

Product development process

A complete development process is as follows:

-03-Basic Technical Content Web Basic Technology

• URL:Unified resource locator, used to access web pages, pictures, videos, etc., all resources on the Internet have a unique URL, starting with HTTP, can be IP or domain name, actually a path
• TCP / IP:Refers to the protocol cluster capable of implementing information transmission between multiple different networks, which is the most basic communication protocol in the use of the network.
• HTTP:Global hypertext transmission protocol, based on TCP, is the basic protocol of the Internet, all WWW services must comply with the HTTP protocol to ensure communication between clients and servers
• SSL:Secret sex transmission can be provided on the Internet, and communication between users / server applications is not to be eavesdropped by attackers, and always authenticate the server, which is generally used for systems with high security requirements, such as network payment.

Front-end technology

• SDK:
• POST / GET:It is two common HTTP request methods. GET is used to get data from the server, while POST is used to deliver data to the server; GET data is placed in the URL, visible to the user, POST passes the parameters through the request body, for the user Invisible;
• Ajax:Using asynchronous data transfer, web applications can quickly rendering the incremental update on the user interface without the need to overload (refresh) the entire page, which makes the program to respond to the user faster, which is more friendly in the user. (Refreshing page will appear on the visuality, let the user lose the focus);
• Cookie / session:Two session storage technologies, mostly used for user identification or status storage, cookies are stored locally (modified views in the browser), and the session is safer;
• TOKEN:A string generated by the server to make a request for the client, generally used as a user login to determine the identity, no need to enter the account password again, just like we take the card instead of the key unlocking;
• Native development:It refers to the development of the officially provided development language, development library, and development tools on the Android, IOS and other mobile platforms. The advantage is that the experience is good, good performance; the disadvantage is that different mobile phone systems should be developed twice, the development cycle is long, cost high;
• Mixed development:Developed using native + HTML5, then packaged into different platforms, the advantage is that the development is fast, the UI expression is consistent; the disadvantage is that the performance and the native gap, some can not be implemented;
• Applets:It is an application that does not need to download and install, the user is running, does not care about whether it is installed too many applications; the small program development threshold is low, can meet most business needs, it is also very convenient, by WeChat 16 The first time, now almost all super apps have a built-in applied.

Backend technology

• Short connection:Each time the client and server perform an HTTP operation, set up a connection, the task ends interrupts, most of the web services are short connections, comparing resource;
• Long connection:After establishing a connection, the client and server, it has been connected, mostly the frequent operation, and the message, such as the game, chatting instantly;
• Synchronize:In order to execute, call a thing is that the call party is waiting for this call back the result to continue, such as the ATM machine to pay the money, take one to the next;
• asynchronous:The call party will not immediately get the result, but after the call is sent, the caller can use the continuation to perform subsequent operations, the caller is notified by the caller, or handle this call by the callback function; for example, order, wait next to it, wait next to it Episcal, the next one continues to order, and use the speaker to pay for a meal after eating;
• queue:It can be understood as the queue in real life, the team headshade head, that is, "advanced first out", often used in spike or group purchase activities, prevent and transmit the service downtime;
• Stack:Also called the stack, use "backward first" rules, such as entering and exiting the elevator, after being in the door, you must go out first;

API interface

It is a protocol for data transfer and interaction between the client and the server. It is a way to synchronize data between two systems. It is generally composed of error code, error message, and data content, can be JSON, XML, or string and other forms. Returns, written by the server, and provide interface documentation to facilitate front-end use.

The interface has greatly reduced dependence, improves the security of data access, and the technician often said.Rear end separationIt is to let the front and rear ends focused on their business logic, and data docking through standard interfaces.

It should be noted that in order to let the user experience more friendly, try to use non-professional text to describe the error message, do not display the error code on the page.

Industry noun

• server:Provide computing or application services for other clients in the network, our code is deployed on the server, similar to our computer host, but it is faster than the computer, each server can assign a public IP, Access service is available outside;
• system:Generally referring to the operating system that is running on the server, the application needs to run on the operating system, and the common server system has Windows, Linux (open source);
• database:To organize, store and manage data, store, and manage data; Directive databases (eg mysql, sqlserver) and non-relational databases (such as: mongodb); similar to the reputation, the shelf corresponds to the data sheet, the shelf Each product is similar to a data sheet data;
• Cache:Refers to a memory that can be exchanged for high-speed data, which exchanges data with the CPU, so the rate is very fast, the role of the cache does not directly access the database, preventing access to the database, improve the access efficiency of our data; Memory Cache Redis, Memcache;
• Timing task:Perform a piece of code every other period of time to obtain a result of a result, usually use crontab, usually put some time-consuming, such as data statistics, is performed timed when the number of visits is small in the morning, generates data tables, send email;

Use of tools

• IDE:It is an application for providing a program development environment, which generally includes tools such as code editor, compiler, debugger, and graphical user interface (men’s toolbox, all), the appearance of IDE makes the development process simple, Convenient, development has its own favorite IDE, but also to form your unique habits through continuous optimization and configuration, it is the weapon of the soldiers;
• Postman:It is an interface test tool that is equivalent to a client, which can simulate various types of HTTP requests initiated by the user. Send the request data to the server, obtain the corresponding response result, and the result data in the verification response matches the expected value;
• FIREBUG:Also called developer tools, it is integrated with HTML view and editing, JavaScript console, network status monitor, is the front-end development effect tool, which can be touched directly in the browser; it is an extension of Firefox browser, due to It is very convenient for the front-end development and commissioning, and the current browser has supported;

Equipment:Develop production and product operating environments.

• Development Environment: New employees will be entered the first day, they must first build their own development environment. The IDE, operation, and debugging software needed, will also configure IDE according to their own habits, and improve development efficiency;
• Operating environment: After product development, you need to put it on the server so that users can use and access, they need to build a server environment. The same is also some columns of software, plug-ins, and more time you need to optimize the configuration of the operating system. Just like you optimize your computer settings;
• Environment Classification: Operational Environment is also distinguishing between DEV (Development), Test (Test), Product (Production) and other environments; Some pre-released environments (using production environment data, but the code has not been issued to the production environment ), Grayscale environment (small population can be seen) environment, etc.

Write death:

• It is referring to the parameters or configuration content, representing these contents, to write in the code, modify the re-release code; The time to build a table and write interface;
• The advantage of writing death is that the development efficiency is high. The bad is inconvenient to modify and need to re-release the version;

What information has been developed?

1. The existing technology cannot be achieved, that is, often said more than the technical boundary, such as the download speed reaches 10g / s
2. Surgregated by the company R & D capabilities and technology stack restrictions, beyond the ability of the ability, such as the requirements for making a small procedure to do artificial intelligence development
3. Platform or ecology limitations, do not support this approach, or no open corresponding interface, such as WeChat does not open an interface to get a list of friends list
4. The existing technical architecture does not support, if it is necessary to do cost, you need to rewrite the underlying code, time, task, not cost-effective
5. The implementation method is more complicated, there is no way to implement, and it is impossible to meet the requirements for short-term implementation.
6. I feel that the value of the demand mentioned is not big, there is no significance, and there is no motivation to do.
7. Simple, don’t want to do
8. Bother you

What kind of case is made clear that it can be effectively judged and solved. ?

-05- and develop friendly communication coordination

The development estimate is mainly mainly controlled by the technical supervisor in the team. They have a responsibility to assist the estimate, control the progress, coordinate the task;

Therefore, the method herein is not to let the product manager instead of the development estimate, but we can take the strategy we can take when it is expected to be expected;

Judgment Estrange First Step: Let’s see the total time, find out the time node of the people who have long-long, see if it is the mission arrangement is unreasonable (more people’s task), or the order is problematic (time vacuum) There are still other tasks;

Judgment an estimate of the second step: solving individual people too long, some people may have normal task, complexity and others are almost, but it is more than others;

• First evaluate personal capabilities and whether the assigned task matches
• Then inquire about the reason, you may find information asymmetry (if you are wrong, understand the code library, you don’t know some technology, etc.), the product manager can guide it to find the corresponding person to solve, or directly to solve it. Symmetrist
• Finally, this person may not say why, there is no wish to solve the problem of long-term long, the product manager must make the development of his own task to disassemble, can disassemble the day according to the development steps, the number of interfaces, logical points to the sky Until until disassembly
• Some people may say, I don’t have this power, I can’t do it for development and me in detail the task. Many people don’t have, but the problem is still solved, you can say good words, you can ask for others, anyway, all want to do everything Solve

Judging the third step in the estimation: After the first two steps, it is found that the length is still super, then there are only some less important needs, and the delivery is more valuable than the perfect online.

Task is more difficult to determine

Look at logic:

• The logic itself is simple, there is not a lot of judgment (such as adding deletion of deduction), the function is also independent, basically assessing 1 to 2 days is reasonable, and the hands and feet may be fixed for a long time.
• If knowledge is purely show, pull the data from a few tables, add some simple judgment, complexity of the front end and the interaction between the rear end, and basically in the day.
• If you just replace text content, pictures, simple style (color, size, etc.), even if you are more, you can do it in batches, it may be cumbersome but not complicated, you can do it in a short time, belonging to your hand

See information:

• Generally there are ready-made interface documents and SDK, it is also simpler, and can be used under time study.
• There is a general purpose component, and the previous function is implemented. If the change is not large, you can use it directly.

General complexity:

• Compatibility problems will be complicated, especially some of the problems of non-usage models, sometimes it is not good to position problems.
• Performance problems are often difficult, need a little point to analyze to find performance bottlenecks, and test optimization
• The core function will be more complicated, especially to provide a number of functions used in many modules.
• When research is usually time consuming, the product manager is doing a need for demand, if you find that you may need to use new technologies, you can say hello in advance and develop, let them study, put the time-consuming question previously solved

Communication and ask questions

Master a knowledge, not to compare others, but let yourself do things more articles and efficiency;

I can understand that there is a bottom gas when I communicate, and I will not be asked, and I can ask a reasonable problem according to the answer to the other party. Most things can be solved by face-to-face;

We have to communicate "More recognition, less ironic", Try to do equality dialogue, some straight-white languages, change to another discourse, will exchange unexpected effects:

Put "Why can’t you do it?", Replaced "I want to know the specific reason?" Or "Is there any other method to achieve?"

Take "this simple need, is it so long?", Replaced "I think this time is a bit for a long time, can you speed up?"

Put "X, there is bug", change it to "here, don’t you operate, see if there is a problem with you?"

It is not easy to give up, do not accept the ambiguous answers, the content of the development should continue to ask until the answer to you;

The product manager is responsible for the final result of the product, encountering problems, no one will continue to solve it for you, do not expect problems to automatically disappear, solve problems, only you can solve problems, understand technology is just means, not purpose;

Drums, overbearing, high mountains.

Proof automatic driving than people safety, do we need 500 years? According to the Land Society, the automatic driving system must accumulate at least 17.7 billion miles of mileage tests, which requires 100 cars for 24 hours to test for 500 years. The birth of the automatic simulation system finally allowed the car company to achieve a million kilometers of tests, simulating various extreme situations, providing more solving ideas for automatic driving safety issues.

At present, the mainstream automatic driving simulation system is mostly based on the game engine, which also makes the giants in the game field have many natural advantages in the automatic simulation driving, such as this year.TencentThe 2021 Tencent Game Developer Conference organized by the game school has appeared on the automatic driving special speech; with BAT andHuaweiIn the admission, the simulation system will become the last technical highland in the automatic driving area?

The current program, Tencent Automatic Driving Simulation Technology, Sun Chi Tian, ??and "SoundJoint founder Xu Tao commonly discussed, how to apply in the automatic driving area, which is important in the field of automatic driving simulation, and this area will go to the old players and new players.

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▼ anchor
Xu Tao, "Sound Lively" founder / producer

▼ guest
Sun Chi Tian, ??Tencent Automatic Driving Simulation Technology Director

▼ main topic
[00:30] What is the relationship between game technology and automatic driving?
[09:54] Which companies use game technology to automatically drive simulation systems?
[22:06] What is the characteristic of players currently involved?
[31:50] What stage is automatically driving?
[36:00] What segmentation fields will be used in game technology?

▼ Extend reading
Unrealopenday2020 Unreal Engine Helping Automatic Driving Simulation | Tencent Automatic Driving Sun Chi Tian
Aads: AUGMENTED Autonomous Driving Simulation Using Data-Driven ALGORITHMS
ISO / PAS 21448: 2019 Road Vehicles – Safety of The Intended FunctionAlicity
Industrial Simulation: Through computer graphics, virtual reality, etc. universal.
Game Engine: Refers to the software components that can be reused and expanded when the game is developed. This concept appeared in the 1990s ID Software launched FPS game "Destruction Warrior". After gaining the authorization of the game engine, the game developer does not need to make a lot of modifications to the engine, you can create similar new games through lower cost. The game engine has currently been applied to the development of the simulation test system.
Unknown Unsafe: Refers to "Unknown Non-Secure Scene" under the ISO21448 "Expected Function Safety" standard, due to the randomness and complexity of the automatic driving application, when designing the automatic driving function, there is difficult to define, evaluate difficult quantization It is one of the main sources of security risks. In this scenario, if the driver is not intervened in time, it is prone to traffic accidents.

▼ music
Quest for the Skies-Christoffer Moe Ditlevsen

▼ staff
Monitor ^ Liu Can
Later period ^ Luke
Operation ^ Yao
Cover design ^ rice

▼ About the show
The original "Silicon Valley is known to know", "WHAT NEXT | Technology I know" after the new revision. Looking at the global, focusing technology development, paying attention to changes in business patterns.

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▼ About TGDC 2021
The 2021 Tencent Game Developer General Assembly (TGDC) has been held on November 24th to 26th, in addition to the guest Sun Chi Tian shared the frontier application of game technology in the automatic driving area at the conference, and from Tencent, EPIC Games CHINA, Robus and other enterprises have well-known experts and scholars in this event, share the latest research and development experience and industry observations in this event. If the small partner wants to learn more about the development of the game technology and cross-border use, you can go to Tencent Games School official website to search for relevant speech videos, link here ().