Tip: The mobile phone charger standard YD/T1591, which was officially implemented on June 14, 2007, will have a new version. The reporter of China Electronics News recently learned from the Tel Lab of the Institute of Telecommunications of the Ministry of Industry and Information Technology that the new mobile phone The development of the charger standard YD/T1591 (Second Edition) has been completed and is currently in the process of approval.
Interestingly, the revised version of the second edition of the standard is actually "Universal ower adapter and harger solution for mobile terminals" ("Universal GPUs and other ICT devices") that have been officially adopted and are being publicly announced and approved by the ITU. And other ICT devices) have high similarities both in concept and in specific regulations. In fact, the above-mentioned charger framework standards completed at the ITU Fifth Study Group (SG5) plenary session in October this year were drafted by our country. In other words, based on more than two years of YD/T1591 (first edition) implementation experience, after careful consideration, China will implement the same set of ideas in the plan to update the second edition of the domestic charger standard and participate in the drafting of the ITU. Among the international standards.
China is the country with the most mobile phone use, with more than 700 million mobile phone users. China is also a big country in mobile phone production. If China's mobile phone charger standards are unified, it will promote the world. The unified charger allows the charger to be reused for different mobile phones. The simple demand of this consumer is actually an urgent need for building an environmentally friendly and economical society in China. The two upgrades of the mobile phone charger standard to the second edition and the international standard mean that the electronic information industry has taken a step closer to green environmental protection. On the occasion of the Copenhagen Climate Change Conference, the newspaper has launched a special report on mobile phone charger standards to show the contribution of China's ICT industry to global environmental and climate change issues.
New version of mobile phone charger standard interpretation
The mobile phone charger standard, the YD/T1591-2006 standard mentioned in the industry, was promulgated on December 14, 2006. The full name of "Mobile Communication Handset Charger and Interface Technical Requirements and Test Methods" is a unified mobile phone in the society. In the case of a surge in chargers, it took four years to launch. This standard, the end of the mobile phone charger is decided by the mobile phone company, the charger style is so varied that the charger is often forced to phase out after replacing the mobile phone. This standard stipulates that the mobile phone charger adopts a three-stage structure of "power adapter + cable + mobile phone", thereby unifying the charger side interface in stages, making the mobile phone charger universal for the first time. The phone can also be connected to a computer or other device via a cable for charging.
According to the scheduled arrangement, on the basis of more than two years of implementation, in early 2009, the Ministry of Industry and Information Technology officially issued the revised project of the YD/T1591 standard, and revised the unified leadership of the China Communications Standards Association (CCSA). Under the launch, the Institute of Telecommunications of the Ministry of Industry and Information Technology, as the main responsible unit, led the revision of the 2006 version of the mobile phone charger standard, and completed the draft report recently, and may be approved before the Spring Festival. In order to understand the background and details of the second edition of the YD/T1591 standard, which has just completed the standard setting work, China Electronics News interviewed Director He Guili and related drafters of the Tel Lab of the Institute of Telecommunications of the Ministry of Industry and Information Technology.
The new version of the standard brews three major changes
According to Director He Guili, compared with the YD/T1591 (first edition) promulgated in 2006, YD/T1591 (Second Edition) has undergone major changes in the following three aspects.
The first is to standardize the charging/data port on the handset side. The mobile phone side charging interface, which is not specified in the first edition, is presented in three versions in the second version, namely MiniUSB (including 10pin miniUSB), MircoUSB and 2mm cylindrical interface.
The second is to further expand the application range of the power adapter, not only for mobile phones, but also for other small appliances such as ICT devices (such as Bluetooth headset charging, razor charging, etc.). And expand the scope of the standard, not only for charging, but also for data transmission interfaces.
The third is to put higher requirements on the energy efficiency of the power adapter, and considering that if the power adapter is required to be used for a long time, it must have more specific requirements for its reliability, durability and material environmental protection. The new version of the standard puts requirements on the plastic material of the shell from the material. In addition to avoiding aging materials, it also emphasizes the environmental friendliness of the material, and also increases the life of the interface.
However, He Guili said that the most important new battery charger standard, the most influential to the industry, is the unification of the interface on the mobile phone side.
Step-by-step unified mobile phone side charging port
"In fact, when I was doing the first version, I wanted to specify the interface on the mobile phone side, because this is the best solution. But because of the first version of the standard in 2006, the industry did not have much preparation, the mobile phone side. Interface seven countries and eight systems, the industry has no idea of ​​unifying the mobile phone side, and our standards are expected to be implemented. In view of industrial development and fitness, decided to take a two-step strategy, first put the charger side The general interface is determined." Any of the directors of Tell Labs tells the reporter of China Electronics News. Firstly, the versatility, interchangeability and physical interface of the charger are uniformly defined. The physical interface of the mobile phone side is not changed. It is easier for the mobile phone manufacturers to adapt, which is in line with the specific situation of the industry in China at that time. The development of any standard is a multi-faceted process of consideration and coordination.
The creative invention of the three-stage structure makes the ultimate goal of unified mobile phone chargers step by step: in accordance with the 2006 version of the YD/T1591 standard, mobile phone companies only need to consider the internal circuit adaptation of the machine, without involving the outside. Changes in physical interfaces make it relatively easy for companies to adapt. After a half-year transition period, on June 14, 2007, the Ministry of Information Industry officially implemented the YD/T1591 standard in the detection of mobile phone network access. “After nearly two and a half years of market conversion, according to our market research, the industry has realized the necessity of unification of mobile phone interfaces and implemented uniformity within the enterprise. Now the chargers on the market have become limited to the general purpose on the mobile phone side. Form, the time has come." He Guili told reporters. In fact, since the implementation of the standards in 2007, the Tell Laboratories and the China Communications Standards Association and other units have been doing guiding publicity or agitation, so that companies are psychologically prepared. In order to realize the unification of the mobile phone side port in the future, we should consider in advance what style the enterprise is willing to generalize.
At the end of 2008, a soft science research project for mobile phone data and charging ports was completed at the Telecommunications Terminal Testing Technology Certification Association (TAF Forum). This project fully studies the current status of mobile phone ports of various manufacturers in China's market, and discusses the feasibility of port generalization. "This research report has played a very important role in us to develop a common standard for ports on the mobile phone side," He Guili said. At the beginning of 2009, on the basis of soft science research, the Ministry of Industry and Information Technology issued relevant tasks, and the conditions and timing were relatively mature.
Hand over the three types of interface elimination rights to the market
The interface between the charger and the mobile phone is varied. There are 8 pins on the Chinese market. (Note: pin is the English name for the pins for circuit connection, the industry is also called pin), 12pin, 18pin or even 20pin, and also has MicroUSB and MiniUSB ports. . Researchers found that based on the analysis of each type of possession, MiniUSB (including 10pin compatible miniUSB) is the most used mobile phone side charger interface in the Chinese market. However, after tracking the development of the USB-IF standard, MicroUSB is the MiniUSB upgrade interface. Considering the future development trend and the wider application range of the charger, the standard revision group will determine the mobile phone side port in three forms instead of one: The type is miniUSB (compatible with 10PIN), one is microUSB, and the other is a cylindrical plug with a diameter of 2mm. It has no data transmission and is only used for charging. It is not only used for mobile phones, but also for other ICT devices. "MicroUSB is considering the future development direction. From the USB standard organization, Micro is an improved version of mini. It is better than mini from reliability to compactness. It has the function of replacing miniUSB." One of the main drafters of the standard Meng Meng engineer said. It is reported that when the GSM organization (GSMA) proposed a unified charger interface plan in early 2009, it only determined that one of the MicroUSB standards was the mobile phone side port, but the GSMA company's adaptation time was very long, and the transition was completed in 2012. The standard in China is to put it into the network license requirements and execute it in a short period of time, so it can only give the enterprise the choice of space in the standard.
The choice of a 2mm traditional interface is also taking into account future developments. "While smartphones are the future direction, considering the price and information security issues, we estimate that there will still be people using simple mobile phones for a long time. It is not excluded that someone uses a dedicated information terminal and then adds a simple mobile phone. The call was made. So I chose the 2mm charging interface.†A summer engineer from the main drafts of the standard said, “And this charger can charge Bluetooth headsets and other small appliances.â€
Market means to play "a footstep"
The above three interfaces and expansion principles have been determined. The standard revision group refers to the second version of the mobile phone charger as “one or three more†application mode, namely “one charger, three lines, multiple terminalsâ€. He Guili said that this is a substantial step toward energy conservation and environmental protection.
“To fully expand the range of charger applications, you can further save energy. On the one hand, the energy-saving requirements of the charger are already covered in the standard; on the other hand, because the charger can be used universally, the charging and power supply of other small devices can be omitted. The device, the overall amount is small, and it is also a contribution to the environment," he said. In fact, the ITU is currently thinking of this. In May of this year, the ITU Focus Group merged with the SG5, which was originally only responsible for electromagnetic compatibility and reliability, and the scope of SG5 expanded to focus on the impact of the entire ICT industry and technology on the environment. In October of this year, the "Power Adapter and Charger Solution for Universal Mobile Terminals and Other ICT Devices" adopted at the ITU conference clearly extended the scope to ICT equipment.
Of course, even the “three lines†that give enterprises more choices to let the market unify the final port solution are still “multiple terminals†that cover more ICT equipment and eliminate redundant charging lines. The formulation of standards must be implemented by the market sector. To be effective. "The ideal situation we hope to see is that in the future, the chargers for mobile phones and other ICT devices will be sold separately. Consumers will buy chargers according to their own needs. Buying mobile phones or other devices must not be used to bundle or tying chargers. Supermarket plastic bags can't be sent to buy the same.†He Guili said, “If we don't do this, we will lose the meaning by setting standards, but this step requires collaboration from other departments of the society.†According to his calculation, the YD/T1591 standard has been implemented. In the past two and a half years, the mobile phone network license issued by the Ministry of Industry and Information Technology has been valid for three years. That is to say, basically, the two-stage charger on the market has been quickly digested, and the mobile phone and charger are separated and sold. Conditions are maturing.
China's YD/T1591 standard goes to the beginning and end of the ITU standard
On October 22, 2009, the International Telecommunications Union (ITU) Press Office, a UN agency, issued a message from Geneva entitled "Universal Charger Standards Passed", which stated that the ITU agreed to "multi-line use" for energy conservation. (one-charger-fits-al) Universal Charger Solution (UCS), the adoption of this standard will greatly reduce the production and transportation of chargers, benefiting every mobile phone user. This is the ITU's upcoming December 7th. An important initiative of the Copenhagen Climate Conference. The standardization of universal chargers is done by the SG5-Environment and Climate Change Group under the ITU.
The news came from China's ITU Office, the China Communications Standards Association (CCSA), the Institute of Telecommunications of the Ministry of Industry and Information Technology, the Tel Lab, the three major operators, and the major domestic mobile phone companies. The members of the group were overjoyed. Although the ITU has no suspense through the unified charger standard, the timing of the press release is so fast that it was not thought of before. A member of the promotion team, Zhang Xia, an engineer at Tell Labs, is one of the speakers of UCS at the ITU conference in Geneva. She told the China Electronics News that the ITU UCS standard is basically the same as our YD/T1591 charger standard. It's just that we are more detailed than it.
YD/T1591 leads the world to follow up
China is undoubtedly the first country in the world to propose a unified charger. From the establishment in March 2004, to the official adoption on December 14, 2006, China's mobile phone charger standard YD/T1591 opened the world's mobile phone industry. Of course, it is precisely because there is no such thing as the ancients. The unified standard-setting process of this small charger lasted for 4 years, and it took dozens of meetings to discuss. In the case of multiple concessions from multiple parties, there was a later three-stage solution. Although the mobile phone charger used in Korea is also versatile, this is because Korean mobile phone development and sales are dominated by operators. South Korea has not officially proposed the universal mobile phone charger standard, let alone the three-stage structure.
At the beginning of 2009, after two and a half years of implementation of the 1591 standard in China, the global GSM Association (GSMA), which is dominated by European companies, played an important role in raising the universal charger standard to the UN level. At the 3GSM conference in Barcelona at the beginning of the year, the GSM Association, in conjunction with 17 global mobile operators and handset manufacturers, issued a statement saying that before 2012, handsets shipped from them will use a unified charger. The Open Mobile Terminal Platform (OMTP) in the EU context launched its own universal charger standard in 2007. After the Barcelona conference, OMTP focused on further promoting universal chargers in the EU and ITU. According to the news of a person in charge of the situation in a European mobile phone manufacturer, OMTP borrowed China's 1591 standard in the standard-setting process, such as adopting a three-stage structure, and even borrowing the Chinese standard recommendation process. Some material. Later, it was found that, besides the OMTP standard of the mobile phone side interface, MicroUSB has been stipulated, and other standards are almost identical to those of China.
Dedicated promotion group follow-up report
The ITU's letter of contact for the unified charger interface has been sent one after another. In order to promote the work of China's YD/T1591 standard to the ITU, China has prepared in advance, under the guidance of the Science and Technology Department of the Ministry of Industry and Information Technology, the three major telecommunications companies have been established. The operators, the major domestic mobile phone design and manufacturing enterprises, the Telecommunications Research Institute and the CCSA's promotion group, under the leadership of the China Telecom Alliance Office, fully discussed how to recommend the ITU standards. After several meetings and discussions, the Standards Advancement Group developed a plan for recommending standards to the ITU, which was fully prepared for technical and organizational aspects.
In May of this year, the ITU Focus Group merged with the SG5, which was originally only responsible for electromagnetic compatibility and reliability and safety. The SG5's scope of responsibility was extended to focus on the entire ICT industry and environmental relations. The ITU allocated the drafting of the unified charger standard to just integrated. On the fifth research group (SG5). China has participated in ITU activities for many years. It has a place in SG5. Xiao Wei, deputy chief engineer of Tell Labs, is the vice chairman of SG5. Zhang Xia is one of the speakers of this project. At the May meeting, China will report the prepared materials to SG5. After discussion, the ITU will establish a unified mobile phone charger standard. At the five-day ITU conference in Geneva in October, SG5 discussed the standard preparation draft. "First of all, our direction is correct. Secondly, our standards are determined through careful and repeated discussions. Therefore, our expert representatives are very confident and confident at the meeting." Any of the directors of Tell Labs tells "China Electronics News" reporter.
Formally incorporated into international standards
It turns out that the framework standard proposed by SG5 is completely consistent with China's YD/T1591. The core of the proposal is adopted by the ITU standard. The published ITU standard is divided into two parts, the first part is the standard body frame and the second part is the case appendix. In the standard main framework, the three-stage structure proposed by China's first world is first determined, and secondly, the important indicators of the voltage and current interface are consistent with China's standards, followed by energy conservation, safety, and electromagnetic compatibility. And other issues are also consistent with our country's proposal. In addition, the ITU standard includes the complete YD/T1591 second edition standard as a technical appendix in the Recommendation, because the ITU standard is frame-oriented, and some of the details need to be provided in the form of an appendix for countries to refer to during implementation. Also included in the appendix are the OMTP standard and the Korean program. "In short, from the standard point of view, the ITU is thick, and we are very thin. The ITU is the recommended standard, and we are the industry standard that must be implemented." Meng Meng, an expert in the project at the ITUSG5 conference, explained. "When we first made the standard, we just wanted to be a domestic industry standard, and we didn't mention the standard of international standards. After seeing the international launch of this project, we think it is necessary and necessary to refer it to the international community. The success of this. I think this is a model from domestic to international standards.†Director Dai Xiaohui of the Department of Technology and Standards of the Ministry of Industry and Information Technology told the China Electronics News.
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