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ZigBee technology positioning method based on received signal strength indicator (RSSI) and received signal strength (RSS)

A positioning method and technology, applied in electrical components, wireless communication and other directions, can solve problems such as poor applicability and poor positioning accuracy

Inactive Publication Date: 2015-04-08
杭州玩视不恭网络技术有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of poor positioning accuracy and poor applicability of existing positioning methods based on ZigBee technology, the present invention provides a ZigBee technology positioning method based on RSSI and RSS with high positioning accuracy and good applicability

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  • ZigBee technology positioning method based on received signal strength indicator (RSSI) and received signal strength (RSS)
  • ZigBee technology positioning method based on received signal strength indicator (RSSI) and received signal strength (RSS)
  • ZigBee technology positioning method based on received signal strength indicator (RSSI) and received signal strength (RSS)

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] refer to figure 1 and figure 2 , a kind of ZigBee technology positioning method based on RSSI and RSS, comprises the following steps:

[0040] 1) Received power p RX Calculation of: where RSSI is the received signal strength indicator, p Ref is the transmit power value, and the relationship between the three is:

[0041] RSSI = 10 × log p RX p Ref - - - ( 1 )

[0042] where p Ref = 1mW;

[0043] 2) Calculation of RSS: RSS is constructed according to the relationship between transmitting power and receiving power at the transmitting end, where the transmitting power can be obtained by formula (1);

[0044] 3) Calculation of the co...

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Abstract

The invention discloses a ZigBee technology positioning method based on a received signal strength indicator (RSSI) and received signal strength (RSS). The method is particularly suitable for emergency processing of emergencies, for example, when the emergencies occur, trapped people can be accurately positioned, and timely saving of the trapped people can be facilitated. On the basis of existing positioning algorithms based on ZigBee, the ZigBee technology positioning method based on the RSSI and the RSS is provided. The method includes received power pRX calculation, RSS calculation, coordinate calculation of a locating tag node M, weight based locating process, calculation of average weight of each base station node, calculation of weight of base station nodes and the locating tag node, and obtaining the coordinate of the locating tag node M. The ZigBee technology positioning method based on the RSSI and the RSS has the advantages of being high in positioning accuracy and good in applicability.

Description

technical field [0001] The invention relates to knowledge in the fields of short-distance wireless communication technology, positioning based on signal strength indication (RSSI), and the like, in particular to a ZigBee technology positioning method. Background technique [0002] With the continuous advancement of coal mining, the number of casualties of underground workers is also constantly rising. Although the country has vigorously promoted the improvement of mine safety measures, mine accidents still occur from time to time, and due to the harsh production environment of mines, complex terrain, and high mobility of personnel, the search and rescue effect is poor, and the efficiency of emergency rescue and rescue and safety rescue is low. When a mine accident occurs, it is particularly important to locate the exact position of the trapped personnel in time and to rescue them. As a new short-distance wireless communication technology, ZigBee technology has obvious advan...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00
Inventor 陈庭贵许翀寰裘月
Owner 杭州玩视不恭网络技术有限公司