Wen Ku said that the first phase of the 5G test was launched earlier this year and was completed in September this year. Last month, the Ministry of Industry and Information Technology released the technical specifications for the second phase of testing. The first phase is called kindergarten and the second phase is called primary school. At the same time, international standards are also promoted in parallel, and international standards and technology research and development are promoted in parallel. "Many companies have participated in the test. In addition to the well-known domestic, Datang, ZTE, Huawei, three major operators (mobile, telecommunications, China Unicom), there are many foreign companies involved, such as Ericsson." He said that he believes that according to the current plan, the International Standards Organization will form the first version of the 5G standard in 2018. We also hope that in 2018, our experiments will be completed along with this standard. At present, the progress is not bad. In addition, he also introduced the latest progress in speeding up the fee reduction: by the end of November, the fixed broadband access rate reached 48M, an increase of 135% over the end of last year, more than 100 optical network cities were built, and the proportion of fiber users reached 75%. The number of new 4G users exceeded 300 million, and the total number reached 734 million. (余一) The following is a textual record: Question: Two days ago, the Ministry of Industry and Information Technology held the 2017 National Conference on Industry and Informatization Work. Minister Miao proposed to implement the pilot project of universal service for telecommunications next year to support the expansion of broadband construction in more than 30,000 administrative villages. Please contact Director Wen, Telecom this year. What are the results of universal service? What is the 2017 plan? Wenku: This year we joined the Ministry of Finance to implement the pilot program of universal telecommunications services. The central government allocated special funds to increase support, and guided the basic telecommunications enterprises to increase investment, exceeding 30 billion yuan. The central, local and enterprises jointly promote broadband in rural and remote areas. A total of 100,000 administrative villages have been arranged in the construction. These 100,000 administrative villages are also in accordance with the requirements of the central government for poverty alleviation, including 31,000 poor villages. In the process of implementing universal services, we have set up a mechanism to set up a government promotion team to coordinate and mobilize various departments and enterprises to participate in the pilot project. In the pilot, we tried to use the national funds well through bidding and local support. Various places are also very supportive of this work. Many broadband work and local work are also closely integrated. It turns out that our rural water, electricity, and roads are now proposed in the national planning outline, and we must pass water, electricity, roads, and letters. It is communication, this network must be broadband, to be smooth. During the investigation this year, I went to a rural village in Mianyang, Sichuan. We saw a working young man returning home to the Spring Festival. After the Spring Festival, he would not go out. He found that the village had fiber optics. He said: There is fiber. I can do a lot of things. I didn't do it because I didn't have fiber at home. He contracted a small hill behind the surrounding village, plus the chickens in the fence, the chickens were free-range, he could monitor with the camera outside, and he also released the video of his own farm to show the chicken to everyone. How to run. Now through information communication, especially through broadband, develop some new formats, so that ordinary people can get rich. Without broadband, he feels very occluded and will go out to work. Nowadays, many modern facilities have arrived in the countryside. Many migrant workers have learned skills and opened their eyes. They have also found new growth points at home and stay at home. Solve a lot of problems, such as longing to miss home, children at home are old people to look after and so on. In particular, we must be strongly supported by the local provincial government and the municipal government. These strong support have formed a synergy and presented good results, and promoted the level of rural informatization. Question: On the 22nd of last month, the International Telecommunications Union released the latest IDI index. China ranked 81. According to the news report, it has increased by 3 compared with last year. How does the Secretary think about China's IDI index ranking? Wenku: This is exactly what you said. The ranking has risen. According to the latest report, China’s IDI ranks 81st, up 3 places from the previous year and enters the top 10 in the Asia-Pacific region. Judging from the rising rate of rankings, it is very fast to see that it has risen by three. China's IDI index ranks 13th in the world. In terms of indicators, IDI measures three dimensions, the first is access, the second is use, and the third is skill. Some of the indicators in these three dimensions are that we are rising very fast. In particular, we have risen by three. The most important point is that we have increased our investment in infrastructure. Compared with the global, our infrastructure has improved significantly and fixed. The continuous improvement of broadband and mobile networks is a core factor in our ranking. China's fixed broadband penetration rate reached 18.6%, an increase of 4.2 percentage points year-on-year. The global ranking ranked from 63 to 55; mobile broadband penetration rate also increased. It has reached 81.3%, up 15% year-on-year, and the global ranking is from 75 to 68. We are also analyzing, in the end, what should be continuously improved, in addition to our communication infrastructure will continue to improve, 4G users will have to increase, the network will be further covered, the Party Central Committee and the State Council also put forward new requirements, and the remote areas should strengthen 4G Coverage, we have to continue to do these aspects. There are also some indicators that we still have a long way to go, such as using skills. We are also promoting the International Telecommunication Union (ITU) to work with everyone to improve this indicator. I believe this indicator will reflect China's development better and more comprehensively. Question: I read that the 5G will be commercially available in 2020. We can use 5G. What changes will 5G bring to our lives? How is the progress of China's 5G? What is the next step? Wenku: 5G China is a relatively early start. In 2013, we will jointly promote the establishment of the IMT-2020 (5G) promotion group together with the National Development and Reform Commission and the Ministry of Science and Technology. China will begin to study: What is 5G, 5G, what should be included in 5G? What are the gaps between the indicators, 5G and 4G, etc. Later, China's research proposed 5G flowers, and compared the 5G indicators with the 4G indicators, and did a deep research. I am very pleased that 9 of our research. Eight of the key performance indicators were adopted by the ITU. Then everyone said what 5G can do, in fact, 5G in addition to 4G capable, and the most important point is the Internet of Everything. Two days ago, a leader of an operating company said that 4G changed lives and 5G changed society. I think he is talking about the image. At that time, we also talked about 1G, 2G is SMS, 3G is photo, 4G is image, we send all kinds of small videos, watching movies are images, then 5G is what? When we organized the expert group in the study, everyone agreed that 5G in terms of bandwidth, large bandwidth is virtual reality, and then I think of the Internet of Everything. Our current work goals are consistent with the international standards. They are all commercial in 2020. The first phase of testing started this year. It was completed in September this year. Last month we released the technical specifications for the second phase of testing. The first phase is called Kindergarten. The second stage is called elementary school. At the same time, international standards are also promoted in parallel. International standards and technology research and development are promoted in parallel. Many companies have participated in the test. In addition to the well-known domestic, Datang, ZTE, and Huawei, the three major operators (mobile , telecommunications, China Unicom, and many foreign companies have also participated, such as Ericsson. 5G is open, and we hope that 5G mobile communication is a globally unified standard that allows our users to use anywhere in the world. I believe that according to the current plan, the International Standards Organization will form the first version of the 5G standard in 2018. We also hope that in 2018, our experiments will be completed along with this standard. At present, the progress is not bad. Thank you very much for your attention and I hope that everyone will give you support. Question: I remember that Secretary Wen said that in the "Dialogue" column, the Iron Tower Company reversed the pattern of the mobile communication market. I would like to ask how much resources have been saved in the joint construction and sharing of the Tower Company in the past two years? What impact does the Tower Company have on the industry as a whole? Wen Ku: As I said in the "Dialogue" program, before we also promoted the sharing and sharing, we also made great achievements, but the establishment of the tower company has made the joint construction and sharing a step, greatly reducing the original cost. There are two aspects in it. One is that the tower sharing reduces the cost. It turned out to be three towers. Now it has become a tower. It is definitely cheap from any angle. Of course, this tower is different from the original one. For example, this tower should be reinforced. Many things can be shared. For example, the power supply, especially the air conditioner, and the backup power are all three copies. Now it becomes a copy. Like air conditioner, this room has a lot of space. Now The base stations are all a small cabinet, and the cost of sharing is low. The second is to save resources. Although our country is relatively large in geography, we still have a small amount of land in our country. Therefore, after the joint construction of the tower, we have saved a lot of land, and at the same time, we have saved a lot of money, according to the industry. Experts estimate that in 2015, about 50 billion yuan of investment was saved, and the land resource saved was about 13,000 mu. From the data from January to September this year, the company has undertaken a demand of 556,000, reduced the number of new towers by 190,000, and the initial investment savings is more than 30 billion. In addition, in terms of communication pattern, it has made up for the shortcomings of some of our enterprises. For example, China Telecom, China Telecom’s original tower resources are relatively small, and it is necessary to go to 4G. If it does not rely on the tower, he needs a place and a place. Going to levy, to build, to talk, the speed is much worse. At present, China Telecom can share the existing towers, some of which are slightly modified, and some do not need to be changed. It can be built directly up to the antenna, and the speed of network construction will be greatly accelerated. Another example is the original comparative advantage of a company with more than one million towers, perhaps only 200,000 stations, but he can share the resources of the original 1 million towers, and will soon be able to build this station so that ordinary people can be on the market. Have a choice. This is a word that is fast. In fact, this fast word makes our country form a fair, as soon as possible, the people can have a choice, covering a wide range of 4G networks, which has played a big role in driving the informationization of our country and the development of Internet companies. Miao’s report at the working meeting said that the income of our Internet companies has increased by 40%. A large part of this 40% is contributed by the mobile Internet. There is no network, no good terminal support, no millions. APP, how dare you think about the development of this mobile Internet. So these are to be traced back, and the role played by the Tower itself is very important. There is no station without a tower, no network without a station, no network Internet company how to develop, in this sense, the iron tower company makes this network a rapid formation of a great role. Question: Now I feel that the speed of the Internet is much faster. This year, the three major operators have also proposed plans to cancel the roaming charges. What are the specific results of this year? Are there any specific data to share with us? What kind of plan will there be next year? Wenku: Speeding up and down is a three-year task proposed by the State Council Document No. 41. This year is the second year. On the basis of last year's work, we further pushed forward the speed-up and fee-reduction work. Our speed This year is very impressive. According to statistics, as of the end of November, the average access rate of fixed broadband reached 48 megabytes, an increase of 135% over the end of 2015, and more than 100 optical network cities were built, that is, these cities basically have The optical fiber is covered, and all the districts and cities in the country have basically achieved light coverage, and have access to 100 megabits. The proportion of optical fiber users has reached 75%, reaching the world advanced level, an increase of 19 percentage points over 2015. In the construction of mobile broadband, with the help of the three major operating companies, especially with the help of the tower company, the newly built base station, 72.7 million 4G base stations, the total number of nearly 2.5 million tower base stations, built the world's largest 4G within two years The network has added more than 300 million 4G users, the total number reached 734 million. In November, the average mobile Internet access traffic reached 976M, which was more than double the year-on-year growth. Question: Why can't my home community only install China Unicom's broadband, can't choose freely, and pick up broadband for mobile and telecommunications. Is it because it is an old community? Wen Ku: You said this question, in fact, we are now in the development of fixed broadband, the last mile of the problem. Now this problem can be said to have greatly improved. The Ministry attaches great importance to and coordinates the solution. In 2012, we and the Ministry of Housing and Urban-Rural Development introduced the national standard for new-generation fiber-to-the-home. If new buildings are not available, they cannot be sold. Later, as a customer, I would like to use China Telecom, China Unicom, China Mobile, including the access network pilot license, and the promotion is still good. However, as the netizens said, some are old communities, and the old community has already entered a family. We also found that some properties may have an exclusive agreement with a certain company. If you enter this family, you cannot enter, and this exclusive agreement is behind. There may be some benefits and so on. Therefore, we and the Ministry of Housing and Urban-Rural Development have issued the "Notice on Implementing the National Standard for Fiber-to-the-Home", requiring residential construction units and property service enterprises not to restrict the equal access of operating enterprises, and not to Limit user choices. In May 2015, the No. 41 document issued by the State Council, “Guiding Opinions on Accelerating the Construction of High-Speed ​​Broadband Networks to Promote Network Speed-Up and Reducing Feesâ€, also proposed to fully guarantee the construction of broadband networks, prohibiting any institutions and individuals from obstructing communication facilities without cause. Construction and collection of unreasonable fees, and effectively protect the user's fair choice. In this regard, we have also strengthened cooperation with various departments such as the Ministry of Housing and Urban-Rural Development, and promoted the implementation and rectification of local governments through various means. At present, more than 60 municipal governments have established the “Leading Group for Special Tasks for Broadband Infrastructure Constructionâ€. Or the departmental joint meeting system, more than 50 municipal governments issued the supporting documents such as the “Implementation Plan for Information and Communication Infrastructure Constructionâ€, and some provinces like Shandong issued the “Code for Construction of Building Mobile Communication Infrastructureâ€, which was released as a local engineering construction standard. Through this series of measures, the monopoly of the community has gradually eased. I believe that through the joint efforts of local governments, communications companies and communications regulators, these will gradually be resolved. Question: Can telecom fiber release the upstream bandwidth? 100M fiber, the uplink only gives 4M bandwidth, limited by 96%, is it too embarrassing? Wenku: This question we have learned in recent inspections, users also have these voices, because from the Internet, everyone still uses web browsing, file downloading, video playback and other services, the overall Internet is characterized by the following behaviors In order to meet the needs of users and make full use of network resources, among the broadband products provided by enterprises, the downlink is generally larger than the uplink. With the rapid development of the Internet, we have also noticed that some users' demand for uplink speed is also increasing. For example, some people say that I want to send videos online, others are to be anchors, etc. These business needs are also increasing. We are also pushing enterprises to provide more broadband access products to meet the needs of different users, and we also Companies are required to indicate in the contract, to make clear to the user, so that users can clearly understand consumption. Because we have recently investigated, some companies have made clear to users, what is the upside, what is the downside, and some have not made clear to the users. In the local inspectors, we also found related issues. The ministry gave the three basic enterprise group headquarters. When feedback is given, enterprises are also required to have a clear contractual agreement on the rate of broadband uplink. I believe that in the new year, companies should pay very high attention to this matter. When signing the contract, we must clearly define the rate of this uplink and downlink. At the same time, we also hope that enterprises can provide different products according to the requirements of different users. Meet the needs of users.
Micro motors Based
on Dc Motor, micro motor belongs to the small size of dc motor,micro
motor rotor, back cover, chassis, rotor winding is mainly copper, back
cover most of the use of plastic material, motor shell use galvanized steel plate, the micro motor can be ROHS test.
A micro
motor is any of a class of rotary electrical machines that converts
direct current electrical energy into mechanical energy. The most common types
rely on the forces produced by magnetic fields. Nearly all types of micro motors have some internal mechanism, either electromechanical or
electronic, to periodically change the direction of current flow in part of the
motor.
Micro motor is mainly used in: outdoor lamps, electronic toys, model aircraft, intelligent bin, breeze machine, etc
Method of use: the best stable in
horizontal plane, installed on the Micro motor output shaft
parts, cannot use a hammer to knock, knock prone to press into the micro motor drive, may cause damage to internal components, and cannot be
used in the case of blocked.
Operating temperature range:
Micro motor should be used at a temperature of -10~60℃.
The figures stated
in the catalog specifications are based on use at ordinary room
temperature catalog specifications re based on use at ordinary room
temperature (approximately20~25℃.
If a micro motor is used outside the prescribed temperature range,the grease on the gearhead
area will become unable to function normally and the motor will become unable
to start.Depending on the temperature conditions ,it may be possible to deal
with them by changing the grease of the motor's parts.Please feel free to
consult with us about this.
Storage
temperature range:
Micro motor should be stored ta a temperature of -15~65℃.
In case of storage
outside this range,the grease on the gearhead area will become unable to
function normally and the motor will become unable to start.
Service life:
The longevity of micro motor is greatly affected by the load conditions , the mode of
operation,the environment of use ,etc.Therefore,it is necessary to check the
conditions under which the product will actually be used .The following
conditions will have a negative effect on longevity.Please consult with us
should any of them apply.
â—Use with a load
that exceeds the rated torque
â—Frequent starting
â—Momentary reversals
of turning direction
â—Impact loads
â—Long-term
continuous operation
â—Forced turning
using the output shaft
â—Use in which the
permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive
,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage
that is nonstandard as regards the rated voltage
â—Use outside the
prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with
us about these or any other conditions of use that may apply,so that we can be
sure that you select the most appropriate model.
when it come to
volume production,we're a major player as well .each month,we rurn out
600000 units,all of which are compliant with the rohs directive.Have any
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The Ministry of Industry and Information Technology's statistics of 4G users reached 734 million. The target is 5G for commercial use in 2020.
Electronic enthusiasts 8:00 yesterday : Yesterday, the Director of the Information and Communication Development Department of the Ministry of Industry and Information Technology, Wenku, answered questions from users on the Internet in the afternoon on topics such as 5G and broadband China. Wen Ku said that the current work of the Ministry of Industry and Information Technology is in line with the international standards, and that 5G will be commercialized by 2020.