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Wireless ad hoc network positioning method based on Beidou passive signals

A wireless ad hoc network and passive positioning technology, applied in the field of satellite navigation, can solve the problem of high cost, achieve the effect of low hardware cost and good network expansion

Inactive Publication Date: 2019-08-30
北京卫星导航中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former needs to return the positioning information, and the cost is higher than the latter

Method used

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  • Wireless ad hoc network positioning method based on Beidou passive signals
  • Wireless ad hoc network positioning method based on Beidou passive signals
  • Wireless ad hoc network positioning method based on Beidou passive signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, n wireless ad hoc network nodes are equipped in a local area: node 1, node 2, node 3, . . . , node n. Among them, node 1, node 2, node 3, ..., node n are respectively equipped with a Beidou passive positioning (RNSS) module. Node 1, node 2, node 3, ..., node n-1 are directly connected to node n respectively, forming a star network topology. Node n is also connected to the monitoring network. The end of the monitoring network is connected to the monitoring management platform, which is equipped with a map and has the function of real-time display of node locations.

[0025] In the working state, the Beidou passive positioning (RNSS) modules equipped with Node 1, Node 2, Node 3,..., Node n respectively receive Beidou positioning information continuously, and the wireless ad hoc network node device communication module according to NMEA0183 Standard protocol, which packs location information into IP packets and sends them directly to node n. ...

Embodiment 2

[0028] The network topology of wireless ad hoc network can be combined freely. except as figure 1 In addition to the star topology shown, it is also possible to figure 2 The chain topology shown. can also be attached image 3 The hybrid topology shown.

[0029] Such as figure 2 As shown, n wireless ad hoc network nodes are equipped in a local area: node 1, node 2, node 3...node n. Among them, node 1, node 2, node 3...node n are respectively equipped with Beidou passive positioning (RNSS) modules. Node 1, node 2, node 3, ..., node n are sequentially connected in series to form a chain network topology. Node n is also connected to the monitoring network. The end of the monitoring network is connected to the monitoring and management platform, which is equipped with a map and has the function of real-time display of node locations. After the positioning information received by node 1, node 2, node 3, ..., node n is packed into IP data packets, they are sent to the two c...

Embodiment 3

[0031] Such as image 3 As shown, a local area is equipped with multiple wireless ad hoc network nodes: node 1, node 2, node 3...node n. Among them, node 1, node 2, node 3, ..., node n are respectively equipped with a Beidou passive positioning (RNSS) module. Node 1, node 2, node 3, ..., node n are connected in pairs to form a hybrid network topology. Node n is also connected to the monitoring network. The end of the monitoring network is connected to the monitoring and management platform, which is equipped with a map and has the function of real-time display of node locations. After the positioning information received by node 1, node 2, node 3, ..., node n is packaged into an IP packet, it can be as follows figure 1 with figure 2 One or more of the various ways shown are sent to node n, and then sent to the monitoring network by node n, and then transmitted to the monitoring management platform for real-time display.

[0032]The wireless ad hoc network is a self-organ...

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Abstract

The invention discloses a wireless ad hoc network positioning method based on Beidou passive signals and belongs to the field of satellite navigation technologies. According to the method, local position information is generated through Beidou passive signal receiving equipment and uploaded to a wireless ad hoc network; and the wireless ad hoc network receives the local position information received through the multiple Beidou passive signals, and the local position information is transmitted to a monitoring system internal network through a relay and displayed on a map in real time, so that real-time positioning and position tracking on multiple Beidou passive signal receiving points are realized. Through the method, the problem that user coordinates are exposed through an RDSS active positioning mode is solved, and compared with Beidou active positioning, hardware cost is low; and the wireless ad hoc network can realize multi-node configuration, network extensibility is good, and themethod is not limited by the quantity and positions of Beidou RDSS active positioning receiving equipment ports.

Description

technical field [0001] The invention belongs to the technical field of satellite navigation, and mainly relates to a wireless ad hoc network positioning method based on Beidou passive signals. Background technique [0002] The Beidou satellite navigation system is a satellite navigation system independently built by my country. Since its opening in 2012, it has provided accurate time-space reference and positioning and navigation services for my country's national defense security and national economic construction. It is one of my country's major information infrastructures and is playing an increasingly important role. At present, the construction of the Beidou global system has begun. As the construction of the system advances, the application of the Beidou system is getting more and more attention. There are two types of Beidou signal receiving equipment: active positioning (RDSS) and passive positioning (RNSS). The former needs to return the positioning information, ...

Claims

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Application Information

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IPC IPC(8): G01S19/46H04W4/024H04W84/18
CPCG01S19/46H04W4/024H04W84/18
Inventor 王茂磊马煦窦长江冯晓超顾青涛孙海燕刘魁星高帅杨华峰王金华曹子春宋倩唐芸唐璐杨闫芳君杨思佳
Owner 北京卫星导航中心