The construction of intelligent transportation is a socialized system engineering that involves various aspects. The intelligent transportation system is a comprehensive transportation management system that effectively integrates advanced information technology, data communication transmission technology, electronic sensing technology, control technology, and computer technology into the entire ground transportation management system. It is a real-time, accurate, and effective system that operates on a large scale.

Today, traffic congestion and pollution are becoming increasingly severe, with frequent traffic violations and accidents, which have become bottlenecks hindering the further development of cities. The transportation department urgently needs a more advanced and intelligent data analysis method to analyze the massive data of the transportation industry in real time, provide real-time and accurate traffic information services for travelers, and provide reference for the transportation management department to quickly handle sudden accidents and traffic violations.

In the entire intelligent transportation systemSensors, like human facial features, play an irreplaceable and important role, and have a wide range of applications in various fields 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 transportation systems. It can also detect vehicles in various directions at intersections and improve signal control algorithms and traffic efficiency based on monitoring results. In addition, wireless sensor networks can also be applied to control subsystems and guidance subsystems in the execution subsystem, such as improving signal controllers to achieve bus priority functions in intelligent transportation systems; And position sensors can help achieve functions such as energy conservation and emission reduction.

Looking at the current transportation 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, and sensors will also play an important role in these four areas to assist in the construction of the intelligent transportation industry.

One is the energy efficiency of fuel. As oil prices continue to rise, how to improve fuel efficiency and achieve conservation and energy-saving effects is an increasingly severe problem faced by enterprises or institutions. To improve the energy efficiency of fuel, in addition to the efforts of oil manufacturing and transportation enterprises, optimizing the powertrain, engine or gearbox is also an important direction with great development space. For example, the new generation of intelligent hydraulic pumps uses a position sensor to detect the position of the hydraulic pump baffle, saving 15% fuel compared to using traditional pumps.

The second is emission regulations. With the increasingly widespread and persistent haze weather in China, reducing PM2.5 to improve the air and environmental health index of cities is a top priority. To this end, the country has introduced a series of policies including addressing the issue of automobile exhaust emissions. In fact, in cities, the emissions from construction machinery may be more severe than the exhaust emissions from cars. At present, the number of construction machinery in China is approximately 3.3 million, including excavators, bulldozers, cranes, and cranes used in construction sites in cities. The emissions from one excavator are equivalent to the emissions from 30 cars. This year, China will issue a National III standard with emissions equivalent to Euro III, which will be upgraded to National IV in the coming years. In order to meet the requirements of the new generation of emission regulations, the electronic control system of related construction machinery engines needs to be more controlled, which requires the use of more sensors. Position sensors such as Honeywell's camshafts and crankshafts can play an important role in the engine, thereby achieving energy conservation and emission reduction.

The third is production efficiency. In a market where the situation is not very stable and growth is not very rapid, every enterprise is thinking about how to improve production efficiency. In today's increasingly mechanized world, machines are powered by either electricity or fuel, and intelligent transportation will make a big contribution to improving efficiency. Therefore, intelligent position sensors that can help vehicles improve production efficiency will have broad development prospects.

The fourth is the construction of regional infrastructure. The demand for infrastructure construction in the region is a force that cannot be ignored in driving the growth of sensors. Although the Chinese economy is currently in a period of moderate development, with the acceleration of urbanization, the construction of domestic transportation and other infrastructure will emerge like mushrooms after rain, which will promote the rapid growth of automation products and solutions. Especially in the context of developing smart cities, sensors as part of automation products will have a very broad market.

The overall development of sensor technology presents characteristics such as high precision, miniaturization, integration, digitization, surface acoustic wave sensors, and microfabrication technology. At the same time, it will also develop towards accelerating the development of new materials, high reliability, wide temperature range, low power consumption, and passivity. Multi sensor information fusion; Further development of MEMS technology; The application of sensitive materials and intelligent material systems; The continuous emergence of new sensors such as nanomechanical devices, sensors, and chemical sensors will eventually lead to the development of the sensor industry into a networked sensor trend in the future.http://www.xaxinmin 。。 ｃｏｍ/