Intelligent traffic sensor demand

In the construction of intelligent transportation, sensors play an important role in intelligent transportation. However, from the current situation in China, the sensor is mainly dependent on imports, this phenomenon is very unfavorable for development, and the localization of sensors is in urgent need.

First, the sensor plays an important role in intelligent transportation

Traffic is not only an important content of urban planning and land use, but also a support for the daily operation of the city. It is also the support of the people's life and work. The National New Urbanization Plan (2014-2020) clearly states that urbanization should take a smart, green, low-carbon road. For transportation, it is not only necessary to build more infrastructure, but also to use high technology to improve efficiency, energy conservation and emission reduction. Therefore, vigorously developing the intelligent transportation industry is an important measure to promote urbanization.

The construction of intelligent transportation is a social system engineering and involves all aspects. Among them, the intelligent transportation system is an integrated application of advanced information technology, data communication transmission technology, electronic sensing technology, control technology, and computer technology to the entire ground traffic management system. Effective, real-time, accurate and efficient integrated transportation management system.

In the entire intelligent transportation system, the sensor is just like the human features. It plays an irreplaceable role and has extensive applications in various areas of transportation. For example, a sensor network composed of wireless sensors has excellent characteristics and can provide an effective means for information collection in intelligent traffic systems, and can detect vehicles in all directions at intersections, and improve and simplify signal control algorithms based on monitoring results. And improve traffic efficiency. In addition, wireless sensor networks can also be used to implement subsystems such as control subsystems and guidance subsystems, such as improving signal controllers to implement public transportation priority functions of intelligent transportation systems; and position sensors can help achieve energy conservation and emission reduction. Other functions.

Looking at the current traffic situation and future demand in China, fuel efficiency, emission regulations, production efficiency, and regional infrastructure will become the four driving forces of China's intelligent transportation industry. Sensors will also play an important role in these four major areas. Intelligent transportation industry construction.

The first is the fuel efficiency. As oil prices become higher and higher, how to increase the energy efficiency of fuels and achieve savings and energy-saving effects are increasingly serious issues facing companies or organizations. To improve the energy efficiency of fuel, apart from the efforts of oil manufacturing and transportation companies, optimizing the powertrain, engine or transmission is also an important direction, and there will be much room for development. To this end, the world's leading supplier of sensors and switches Honeywell and other companies in the technological innovation, product development and application of sensors and other areas have made a lot of efforts. For example, a new generation of intelligent hydraulic pumps use a position sensor to detect the position of the hydraulic pump baffle, saving 15% more fuel than using a conventional pump.

The second is emission regulations. As the smog weather in China becomes more and more extensive and more and more persistent, how to reduce PM2.5 to improve the city's atmospheric and environmental health index is a top priority. To this end, the state has introduced a series of policies that include responding to vehicle exhaust emissions. In fact, in cities, emissions from construction machinery may be more severe than emissions from cars. At present, China's construction machinery is approximately 3.3 million units, including excavators, bulldozers, cranes, and cranes in construction sites in cities. The discharge of one excavator is equivalent to the emission of 30 cars. This year China will promulgate the third national standard equivalent to Euro III and will be promoted to the National IV in the next few years. In order to meet the requirements of the new generation of emission regulations, the electronic control system of the relevant construction machinery engine needs to be controlled more precisely. This requires the use of more sensors, such as Honeywell's camshafts and crankshaft position sensors. It plays an important role in achieving energy conservation and emission reduction.

The third is production efficiency. In a situation where the market is not very stable and growth is not very rapid, every company is thinking about how to increase production efficiency. In the increasingly popularization of mechanization today, the power of machines is not electricity or fuel, and intelligent transportation will be a big issue in terms of efficiency. Therefore, intelligent position sensors that can help improve the production efficiency of vehicles will have a broad prospect for development.

Fourth, regional infrastructure construction. The demand for infrastructure construction in the region is a force that can not be ignored in the growth of sensors. Although China's economy is currently in a period of moderate development, with the acceleration of urbanization, infrastructure construction such as domestic transportation will spring up, causing rapid growth of automation products and solutions. Especially in the era of the development of smart cities, sensors will have a very broad market as part of automation products.

Second, the domestic sensor dependence needs to be changed

However, domestic sensors have a significant flaw. The accuracy and longevity of sensors are far behind those of Europe and the United States, including Japan. The sensing technology in these countries has been leading China for almost fifteen years. The demand for sensors in China is very large, but the technology can not meet the demand, especially the high-end demand, mainly rely on imports, and the localization of sensors is in urgent need.

In recent years, some old European and American measuring force manufacturers have developed a series of miniature/small/small/small/high-precision force sensors such as miniature pressure sensors, small-scale load cells, and small-sized force sensors. This makes our sensors further behind in the technical level. China's imports of sensors accounted for 80%, and sensor chip imports accounted for 90%. This kind of form is very unfavorable to our country's metropolitan security, whether it is security, Internet of things, chemical industry or automobile industry.

First, the products of private or joint ventures occupy the low-end market. Traditional technologies and equipment can meet the manufacturing requirements of the vast majority of products. The market is in a good state of development. In addition to individual manufacturers in the individual varieties of foreign production of chips to the domestic package out of related products, occupy a larger share of the market, other high-end products are monopolized by foreign manufacturers.

Second, with the rise of emerging industries such as the Internet of Things, the industry has become an important area for countries in the world to compete for high-tech development. In recent years, China's sensor industry has grown rapidly, and its application model has also matured. However, due to the low industrial scale and poor technological innovation capability, the domestic sensor industry presents a low-end surplus and the market pattern of high-end foreign monopoly. The lag in the development of sensor technology has hindered the smooth progress of domestic strategic emerging industries.

Third, the development of state-owned enterprises is in a state of steady growth. Generally speaking, it cannot keep up with the pace of the latest foreign technology development. Except for a few manufacturers, the overall gap has widened. This is due to the rapid development of sensor technology, rapid updating of process and manufacturing equipment, and the fact that many new equipment manufacturers cannot manufacture it. And the price of a single unit of equipment is as low as hundreds of thousands of dollars, and many millions of dollars. Most manufacturers can hardly buy new types of equipment because of their own accumulation, resulting in the inability to keep up with the rapid development of foreign companies in many new technologies and processes. pace.

Third, how to do technical breakthrough

The application of sensors in the field of intelligent transportation can see the importance of sensors. In fact, intelligent traffic sensors will also have a great application in the upcoming Internet of Things era. The application of sensors in many fields shows its market potential. Therefore, the phenomenon of import dependence is not a long-term solution. China should shorten the gap in sensor technology with Europe and the United States as soon as possible. It can learn from other countries' experiences and conduct more technical exchanges. At the same time, we must sum up our own experience and find gaps in inadequacies. Every enterprise and scientist in China that is committed to researching sensor technology should also conduct more technical exchanges, learn and promote each other, and be united in order to make a breakthrough as soon as possible; the state should encourage innovation, and should provide certain rewards for technological breakthroughs. Encourage and promote continued development; enterprises and individuals should also recognize the status quo, take this as their own responsibility, earnestly study, actively explore, and develop new technologies.