Wireless thermocouple sensor network technology and new development

As the micro-electro-mechanical system ( Micro- 电- - - - - - MechanismSystem, MEMS) , on a chip system ( SOC SystemonChip) , wireless communications and the rapid development of low-power embedded technology, breed thermocouple sensor network (wireless WirelessSensorNetworks, WSN) And with its low power consumption, low cost, distributed and self-organization characteristics brought information perception of a revolution. Wireless within the thermocouple sensor network is deployed in monitoring area by a large number of low-cost micro thermocouple sensor nodes, through wireless communication mode to form a multiple hops self-organizing network.

wireless thermocouple sensor network ( WirelessSensorNetwork, WSN) Is deployed in monitoring area a lot of cheap miniature thermocouple sensor nodes by wireless communication mode to form a multiple hops self-organizing network system, its purpose is collaboration to perceive, collection and processing network coverage area perceived object information, and sent to the observer. Thermocouple sensor, the cognitive object and the observer form the wireless thermocouple sensor network of the three elements.

wireless thermocouple sensor networks have many types of thermocouple sensors that can detect include earthquakes, electromagnetic, temperature, humidity, noise, light intensity, pressure, soil composition, size, speed and direction of a moving object surrounding environments, such as a variety of phenomena. Micro sensor based on MEMS technology and wireless networking technology for wireless thermocouple sensor network gives a broad application prospect. The potential application fields can be summarized as: military, aviation, anti-terrorism, explosion-proof, disaster relief, environmental, health, health care, household, industrial, commercial, and other fields.

a lot of people think, the importance of this technology can be comparable with the Internet: as the Internet, enables the computer to access a variety of digital information and can be preserved regardless of where, thermocouple sensor network will be able to expand the ability of remote interaction with the real world. It even be called a kind of new type of computer system, this is because it is different from the past hardware can be spreading, and the characteristics of collective analysis ability. However, in many ways, wireless sensor network (WSN) thermocouple now as in 1970, the Internet, the Internet connection only then less than 200 universities and military LABS, and researchers are still in the experimental various communication protocol and addressing scheme. Now, most of the thermocouple sensor network connection only less than 100 nodes, more nodes and communication lines can make its become very complex and difficult and not work properly. Another reason is that the price of a single thermocouple sensor nodes are not cheap, and battery life in the best case is only for a few months. These problems are not insurmountable, however, some wireless thermocouple sensor network products have been listed, and possessed the function of absorbing new products also will appear within a few years.

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