Sensor technology in recent years, new principles, new materials and new technology research more deeply and widely, new varieties, new structures, new applications emerge. Among them, the "five" has become the important tendency of its development. It is intelligent, two kinds of trajectory go hand in hand. There are two main development direction: one direction is a variety of sensing function and data processing, storage, two-way communication, such as integration, all or part of the realization of signal detection, transform processing, logic and function calculation, two-way communication, as well as internal self-test, self-calibration, since the compensation, since the diagnosis, and other functions, with low cost and high precision information collection, data storage and communication, programming automation and function diversity, etc. Such as the United States LingLiEr (Linear Technology) intelligent sensor installed ARM 32-bit processor architecture. Another direction is soft sensing technology, the intelligent sensor combined with artificial intelligence, has now appear all sorts of based on fuzzy inference, artificial neural network and expert system of artificial intelligence technologies such as highly intelligent sensor, and it has be used in smart home, etc. Such as NEC developed on a large number of sensors to monitor implementation of new method to simplify the "invariant analysis technology, and has been put into use in infrastructure oriented system this year.

2 it is can be mobile, wireless sensor network technology to speed up. Wireless sensor network technology is the key to overcome the node resource constraints (energy supply, computing and communication ability, storage, etc.), and meet the requirements of sensor network scalability, fault tolerance, etc. The technology by the United States at the Massachusetts institute of technology (MIT) technology review magazine have a profound impact on future human life of ten emerging technologies. The current research focus mainly on the design of routing protocols, location technology, time synchronization technology, data fusion technology, the embedded operating system, network security technology, energy harvesting technology, etc. So far, some developed countries and cities in the smart home monitoring, precision agriculture, forestry, military, intelligent building, intelligent transportation, and other fields of technology application. Such as, independence from MIT Voltree Power LLC company authorized by the U.S. department of agriculture, the temperature sensor is set in the place such as mountain, California, build the sensor network, designed to detect forest fires and reduce fire loss. 3 it is miniaturization, MEMS sensor research and development boom. As integrated microelectronics mechanical processing technology and the increasing maturity of MEMS sensor, semiconductor processing technology (such as oxidation, photolithography, diffusion and deposition and etching, etc.) the introduction of sensor production and manufacturing, to realize the large-scale production, and provides important technical support for sensor miniaturization development. In recent years, such as Japan, the United States, the European Union in semiconductor devices, micro system and the microcosmic structure, velocity measurement, the system processing method/equipment/speaker, microphone, horizontal/range/gyroscope, the printing plate-making process and material properties/analysis and other technical areas has made important progress. Currently, the main MEMS sensor technology research and development direction in the following: (1) the miniaturization of reducing power consumption at the same time; (2) improve the accuracy, (3) to realize the integration and intelligence of MEMS sensor; (4) development and technical fields such as optics, biology, intersection of new sensors, such as MOMES sensor (combined with micro) and biological chemical sensors (combined with biotechnology, electrochemical) and nano sensors (combined with nanotechnology). Four is integrated, multifunctional integrated sensor has been widely concerned. Sensor integration includes two categories: one is the integration of the same kind of multiple sensors, namely the same function of multiple sensors with integrated process on the same plane arrangement, composed of linear sensor (e.g., CCD image sensor). The other is a multifunctional integration, such as several different sensitive components produced on the same wafer, made integrated multi-functional sensor, high integration, small size, easy to implement compensation and correction, is the main development direction of the current sensor integration. The best method of semiconductor put forward the combination of multiple sensor module as a sensor is central to improve product features; Toshiba company has developed a combination of wafer level sensor, and released in March this year can simultaneously detect the pulse and ecg, body temperature and physical activities such as the four vital signs information, and then sends data wireless sensor module to a smartphone or tablet, etc "Silmee". Five is diverse, new materials technology breakthrough to speed up the emergence of a variety of new sensors. New sensitive material is the basis of sensor technology, materials technology research and development is to improve performance and reduce the cost and technology upgrading. In addition to the traditional semiconductor materials, optical fiber, etc., organic sensitive materials, ceramic materials, superconducting, nano and biological materials become a research hotspot, and biological sensors, optical fiber sensor, gas sensor, digital sensors such as new sensors to speed up. Such as optical fiber sensor is sensitive to optical fiber, as function or use of optical fiber transmission of light sensor with high sensitivity, strong electromagnetic interference resistance, corrosion resistance, good insulation, small volume, low power consumption, this has now been applied optical fiber sensor measurable quantities up to 70 kinds of broad prospects for development; Gas sensor can convert to gas concentration was measured with a certain relationship between the power output, has a good stability, good repeatability, good dynamic performance, quick response, use, maintenance is convenient wait for a characteristic, application field is very broad. According to BCC Research company says, biosensors and chemical sensors is expected to become one of the fastest growing segments of sensor and is expected to 2014 in 2019 to an average annual compound growth rate could reach 9.7%.