Positioning system and method based on wireless sensor network
A technology of wireless sensor and positioning method, applied in the field of Internet of Things and wireless sensor network, can solve the problems of high cost, waste of resources, inability to realize functions, etc., and achieve the effect of convenient application
Inactive Publication Date: 2017-02-22
SHAOXING UNIVERSITY
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Problems solved by technology
[0003] In the prior art, there have been positioning technologies based on wireless sensor networks. However, to equip each sensor node with a GPS positioning module will not only cost too much, but the power consumption of the GPS module will also greatly shorten the life of the entire wireless sensor network.
In addition, in order to implement positioning, it is necessary to pre-set a separate wireless sensor to obtain location information, but cannot achieve more functions, resulting in a certain waste of resources
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[0034] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.
[0035] Such as figure 1 As shown, the present invention provides a positioning system based on a wireless sensor network positioning method, including:
[0036] At least three wireless sensors are arranged within a preset range, and the three wireless sensors are not arranged on the same straight line, and each wireless sensor corresponds to a unique ID number;
[0037] The intelligent router is used to number the wireless sensors, store the location information of each wireless sensor, send a location notification to each wireless sensor and receive the location signal returned by each wireless sensor, calculate the location information of the device to be positioned according to the location signal, and Calculate the mobile acceleration of the device to be positioned and predict the trajectory of the dev...
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The invention relates to a positioning system and method based on a wireless sensor network. The system comprises at least three wireless sensors; an intelligent router for numbering the wireless sensors, storing the location information of the respective wireless sensors, sending positioning notifications to the respective wireless sensors and receiving positioning signals returned by the respective wireless sensors, calculating the position information of a device to be positioned according to the positioning signals, calculating the moving acceleration of the device to be positioned and predicting the movement trajectory of the device to be positioned according to the position information of the device to be positioned in two periods; and a mobile terminal. The positioning system and method can directly use a existing wireless sensor network for device location, can use a wireless local area network and a mobile communication network to achieve double protection; achieve triangulation location by using the three wireless sensors in positioning, and is convenient in application and suitable for large-scale popularization and application. The feedback signals of the selected three wireless sensors have the same type.
Description
technical field [0001] The present invention relates to the technical field of the Internet of Things, in particular to the technical field of wireless sensor networks, and specifically refers to a positioning system and method based on wireless sensor networks. Background technique [0002] A wireless sensor network (Wireless Sensor Networks, WSN) is a distributed sensor network, and its ends are sensors that can perceive and inspect the external world. The sensors in the WSN communicate wirelessly, so the network setting is flexible, the location of the device can be changed at any time, and it can also be connected to the Internet in a wired or wireless manner. In recent years, wireless sensor networks have developed rapidly and are widely used in many fields such as military affairs, intelligent transportation, environmental monitoring, and medical care. [0003] In the prior art, a positioning technology based on a wireless sensor network has appeared. However, to equi...
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Login to View More IPC IPC(8): H04W24/04H04W64/00H04W84/18
CPCH04W24/04H04W64/006H04W84/18
Inventor 余亚东
Owner SHAOXING UNIVERSITY