Economic operation of China's general instrument manufacturing industry
At the end of 2011, China's general instrument manufacturing industry reached 1830, and the total assets of the industry reached 273 billion 197 million yuan, an increase of 22.11% over the same period last year. The data showed that in 2011, the main business enterprises of the general instrument and instrument manufacturing industry above the scale of our country reached 323 billion 759 million yuan, up 25.42% from the same period, and the total profit reached 30 billion 170 million yuan, up 26.24% from the same period.
In 2011, the State Ministry of science and Technology (Ministry of science and Technology) organized experts from the high technology research and development center to accept the "industrialization development of intelligent instrument and instrument", the key project of "process digitized instrument and instrument" in the 863 plan advanced manufacturing technology field, which was undertaken by the Shanghai automation instrument Limited by Share Ltd. The goal of the "industrialization development of intelligent universal instrument and instrument" is to improve the technical level and product grade of traditional instrument and instrument with digital, intelligent and networked technology, and focus on solving the problems of poor reliability, backward function and performance, slow technology renewal, and promoting the formation of the main instrument leading enterprises in China. The capacity of new product development and industrialization is expanded, and the market share of domestic instruments and meters is expanded.
Ge will expand the business of wind power equipment in China.
General Electric recently said its subordinate departments are seeking joint venture opportunities to expand their scale of wind power equipment business in China. Tim Schweikert, President of general electric technology infrastructure, said, "we often look for joint ventures in different areas of China."
Jiang Qian, a researcher in the new energy industry of CIC advisor, pointed out that although the State Council standing meeting at the end of August pointed out that there was a tendency to repeat construction in the domestic wind power equipment market, the policy adjustment of the new energy industry in China was also imminent, but in the long run, the overall support attitude of our government to the new energy industry would not change. Change, and the huge potential of China's wind power market is beyond doubt, this is also the main reason for the international giants such as General Electric to expand the business of wind power equipment in China.
The 2009-2012 year China electricity industry investment analysis and prospect prediction report released by CIC consultant shows that China's wind power industry is developing at an alarming speed in recent years. Although the new wind power installed capacity of 6 million 300 thousand KW in 2008 is slightly lower than the 8 million 358 thousand KW in the United States, our country has already taken other countries from the power and speed of developing wind energy. If all the approved wind power projects are included, we can say that our wind power installed capacity is already * * * * *. In 2010, China is expected to exceed Europe and the United States and become the world's largest wind power country. It may reach or exceed 30 million kilowatts, 10 years ahead of time to reach the 2020 development target of wind power determined by the Chinese government, and 100 million or 120 million kilowatt of wind power installed capacity in 2020.
In fact, General Electric has increased its layout in China in the near future. In August 20th, General Electric's transport system group wind power transmission technology company and Chongqing new wind energy investment Co., Ltd. formally signed a cooperation agreement to jointly establish joint ventures and produce wind power gears. According to the agreement, the two sides will jointly invest 130 million dollars for wind turbine gear project cooperation, and the final output value will reach 200 million US dollars.
Zhang Yanlin, CIC's director of research research, pointed out that the influx of foreign capital giants may let domestic wind power equipment industry experience temporary pain, the most direct expression is that most small and medium-sized enterprises will face the situation of closed business, but in the long run, it can promote the continuous progress of domestic enterprises in the fierce market competition. It will play a crucial role in the overall progress of the industry.
After the two meetings, look at the electrical industry to represent the proposal
The two sessions ended, and the members of the Committee put forward many pertinent opinions to see what suggestions the NPC delegates put forward in the electrical
Battery free wireless sensing for Intelligent Agriculture
The humidity or moisture sensing products of A Morimi semiconductor series wireless sensor series are ultra high frequency radio frequency identification (UHF RFID) wireless sensor, which can realize
TWS and many other new technologies are the core of the new generation of wireless stereo headphones.
1, true wireless stereo (TWS) is the main scheme of the new generation of wireless stereo headphones.
Real wireless stereo, the English vocabulary is True Wireless Stereo, referred to as TWS, it is a Bluetooth headset / sound box technology innovation, can realize the wireless separation of the Bluetooth voice channel.
The core principle of this technology is to divide speakers into main speakers (TWS Master) and subordinate speakers (TWS Slave). The main speaker is the audio of the A2DP protocol that can receive the smart phone, notebook and other devices (sound source), and the streaming media control signal of the AVRCP protocol, and transmit the audio to the speakers of other TWS devices. A slave loudspeaker is a loudspeaker that can receive A2DP protocol audio from the main speaker. Compared with high-end TWS headphones, two speakers can be used as main speakers.
TWS technology enables the audio of the mainstream A2DP protocol to be transmitted from the main speaker to the loudspeaker to synchronize the audio in the two separate speakers, and then the stereo effect is achieved.
Apple, Samsung, Jabra and other industry leaders have adopted TWS technology in new products. The typical representative of TWS headset is apple AirPods. Besides that, Samsung Gear IconX, Jabra Elite Sport are also representative products in the industry. Form 7, we summarize the TWS headphones that have been released by electronics giants and start-ups.
In addition to the whole machine, TWS's main solution provider, British chip manufacturer CSR, and two companies under NYK NXP, are both bought by high - pass, and a representative of the industry giants in the field of radio - Acoustic distribution.
Compared with the ordinary Bluetooth headset, the wireless headset with TWS technology has obvious advantages in portability, high-definition sound quality, volume, intelligent level, waterproof and so on.
2, with AirPods as the representative, the number and complexity of TWS earphone components have been greatly improved.
A pair of AirPods headphones and 1 charging devices have 28 main components and hundreds of components, which have greatly improved the number and complexity of components compared to previous wireless headphones.
In addition to components such as acoustic devices, decode chips, such as wireless headphones, AirPods integrates several different functional sensors to greatly improve the convenience of wireless headphones.
AirPods's new biometrics and noise reduction are mainly realized by various sensors. It mainly includes speech acceleration sensor, motion acceleration sensor, optical sensor and MEMS microphone.
Speech acceleration sensor:
The speech acceleration sensor is a voice activity detector that can feel the vibration produced by the user when speaking. The voice activity is detected by the user's muscle tissue and the vibration in the skeleton. The package size of the Bosch chip is 2.0mmx2.0mm x0.95mm.
Motion acceleration sensor: to achieve two functions of activating Siri and starting microphone.
The motion acceleration sensor in AirPods is derived from STMicroelectronics three axis accelerometer. With the use of optical sensors, it can generate many kinds of convenient functions. The package size is 2.50 mm x 2.50 mm x 0.86 mm.
Optical sensor: check whether the user is wearing a headset
The optical sensor in AirPods is made up of two photosensitive elements, combined with a motion acceleration sensor to detect whether you have put them in the ear, which automatically opens the functions of transmitting audio and activating the microphone. Its package size is 1.78 mm x 1.35 mm x 0.42 mm.
Microphone: call, voice input and background noise.
AirPods's MEMS microphones are all derived from GoerTek acoustics. A microphone using beamforming technology can be configured as an array to form a directional response or a beam field, which can be more sensitive to sound from one or more specific directions. With speech acceleration sensor, we can filter out background noise and clear the user's voice.
The battery inside the AirPods charger is a 3.81V, 1.52 watt lithium battery, which has about 16 times the capacity of the AirPods headset, and can fill two earphones with 8 times. In contrast, the battery of Apple Pencil is about 0.329 watts, and the Apple Watch Series 2 is 1.03 watt hour. So far, it is a capacity of * * micro battery.
In addition, we can see from more detailed disassembly diagrams that AirPods is not only a new addition of sensors, chips, acoustic devices, but also because of the increase in the number of components that lead to internal connectors (Speaker Connector, Antenna Connector, Button Connector, Charging Connector, Battery Pad, etc.), antennas, and antennas. The number of small parts, such as metal structural parts, has also increased greatly. It also raises higher requirements for the assembly and manufacturing capacity of the assembly manufacturers and the self-suffici
4G Internet speed ranked the bottom. India looked for HUAWEI to help 5G in 2020.
According to foreign media reports, because 4G network is too slow, India has to rush towards 5G. Recently, India operator Bharti Airtel combined with HUAWEI has stepped out of the first step towards high-speed 5G network. The two companies have completed the India **5G network test. India will officially announce the development roadmap of 5G in June of this year. It is reported that they will start the large-scale deployment of 5G network in 2020.
Accelerating multisensor fusion and accelerating the evolution of single line lidar on the road is imminent.
As the core visual component of intelligent driving or automatic driving technology, this year's lidar market is very busy. The continuous mergers and acquisitions by the giants, the successive release of various types of products on the market and the growing number of auto drivers in the LiDar camp have emerged, and laser radar has become a major symbol of the era of automotive intelligence. However, in view of the current market situation, the speed of LiDar is still very slow. Therefore, more and more manufacturers began to push the cost of single line lidar products, so as to "pioneer" to knock on the door of the automotive application market. Shenzhen city Leishen Intelligent System Co. Ltd. CEO Hu Xiaobo
"Before the cost of multi line laser radar has not been reduced, I think the single line laser radar can be used as much as possible before the cost of the multi line laser radar has not been reduced," CEO Hu Xiaobo, a Shenzhen laser Intelligent System Co., Ltd., stressed. In fact, the single line in the front and back of the anti-collision, around the blind area detection and automatic parking and other aspects can play a very good effect, so that the cost can be further low. There was a statistic before, saying that most of the traffic accidents are mostly side collisions. In particular, more than 40% of these collisions, such as large trucks and buses, account for about 8% in forward collisions, more than 70% in backward collisions, and more than 20% are caused by the blind area detection. In fact, if low cost single line lidar is used up, it can solve this problem well, and it should reduce more than 80% traffic accidents every year. There are also some car factories testing our single line lidar. It is still good from the test results. In the future we want to use lower costs and prices to make the single line laser radar use as fast as possible, like this single line of 100 to 150 meters, and then use it in the car for the future. From 1000 yuan to 1500 yuan, it will make all cars affordable.
As Hu Xiaobo said, today's automobile sensor portfolio is far from the "safety" requirements, especially the huge trucks and trucks. Although some vehicles are equipped with other sensors such as millimeter wave, camera and ultrasonic wave, there are many accidents caused by the blind area detection and the difficult location of the vehicle. Therefore, the "ahead of the car" of the laser radar is imminent. However, future intelligent driving is still dependent on multi sensor fusion technology. After all, from the perspective of cost performance, reliability, security and stability, a single laser radar or other sensors can not guarantee full security redundancy.
Hu Xiaobo agreed, he said: "laser radar, camera and millimeter wave sensors are not in fact who replace who, I think each other is a complementary problem." Because the car is a very high demand for security, if you say which sensor is out of the problem, the other is not redundant, it will be very dangerous. For multi-sensor, laser radar is good at obstacle detection and obstacle tracking, and some details, such as lane lines, are not measured, and the camera is good at distinguishing the color information of the environment, and can well identify the lane line, the pedestrian, the car and the surrounding environment, millimeter wave mine. Da can quickly get speed information, and it has low attenuation and penetration in fog. There is a complementary relationship between the three.
At present, the laser also developed a multi sensor fusion ADAS system based on single line laser radar and camera. Hu Xiaobo added: "in this, laser radar is used to measure point cloud data, and then combined with camera data to do lane line recognition, lane departure warning and curvature data, so that the distance of the car can be very long. Accurate measurement. This data is relatively simple, but at present a lot of car factories are generally difficult to test the laser radar point cloud data, and through our processing, we can greatly simplify the data. After these data processing, can be sent to the central controller through the CAN bus, so that the car factory can make a good decision.
In the future, with the continuous development of intelligent driving technology, the editor believes that the solution of multi sensor fusion based on laser radar + high precision map + cloud computing will continue to dominate. Under the strong impetus of the key "infrastructure" of the laser radar, the future vehicle autonomous environment perception, positioning, high precision 3D map data collection and drawing will also be given powerful hardware kinetic energy, thus promoting the automobile industry towards a highly intelligent age.