Layered positioning system and layered positioning method
A positioning system and positioning module technology, applied in the field of positioning systems, can solve the problems of unsuitable scale adjustment, low reliability, high cost, etc., and achieve the effects of not being easily disturbed, good reliability, and low cost
Active Publication Date: 2010-02-17
THE HONG KONG POLYTECHNIC UNIV
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Problems solved by technology
[0004] One of the technical problems to be solved by the present invention is to provide a layered positioning system with good reliability, low cost and easy scale adjustment in view of the above-mentioned defects of low reliability, high cost and unsuitable scale adjustment in the prior art
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[0032] Such as figure 1 What is shown is a schematic diagram of the system structure of the layered positioning system of the present invention. The hierarchical positioning system of the present invention includes an information server and a plurality of master devices ( figure 1 MD represents the master device (Master Device)), and multiple slave devices connected to the master device ( figure 1 SD is used to represent the slave device (Slave Device)), and the slave device can also be connected with other multiple slave devices to form a tree structure. The main device is set on the main object, and the main object moves within the area covered by the wireless local area network; the structure of the information server is as follows: figure 2 As shown, the information server includes a location information database, a tracking module and an alarm module connected to the information database, and the information server is connected to multiple master devices through a wire...
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The invention relates to a layered positioning system and a layered positioning method, which adopt an information server, and a master device and a slave device which are connected with the information server. The information server comprises a position information database, a tracking module and a warning module; the master device comprises a data processing unit, and a positioning module and amaster ZigBee module which are connected with the data processing unit; the slave device comprises a slave ZigBee module and a sensor module which is connected with the slave ZigBee module; and the information server, the master device and the slave device form a sensor network through the ZigBee modules to determine the position and the moving state of an object. The layered positioning system and the layered positioning method are difficult to be disturbed, have the advantages of good reliability, low cost and easy regulation for scales, are suitable for large-scale use; moreover, the layered positioning system and the layered positioning method do not need a new conductor wire, and have lower power consumption and low running cost; and the positioning system can be freely moved.
Description
technical field [0001] The present invention relates to a positioning system and method, more specifically, to a layered positioning system and method. Background technique [0002] Now, it is necessary to determine the positions of various objects in those environments surrounded by many metal objects (such as containers, warehouses, factory buildings, etc.). In addition, some materials, equipment, and goods need to be monitored. Real-time location and determination of its status can support decision-making in operations. [0003] GPS in the prior art and RTLS (Real-Time Location System, real-time positioning system) based on RFID (Radio Frequency Identification, radio frequency identification) cannot well meet the above requirements, because these two technologies are easily surrounded by metal The environment shields and interferes, leading to unreliable results. Moreover, the cost of these two technologies is relatively high, and the scale of use is not suitable for a...
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IPC IPC(8): G01S5/02G01S1/02H04Q7/38H04L12/28
CPCY02D30/70
Inventor 倪伟定李仲麟郑大昭伦婉霞黎基雄蔡日星
Owner THE HONG KONG POLYTECHNIC UNIV