Sensors help intelligent traffic construction

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 socialized 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 intelligent traffic system information collection. It can also 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 the public transportation priority function 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 problems faced by companies or institutions. 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 30 cars. This year China will promulgate the third national standard equivalent to Euro III, and it 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.