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Method for implementing GPS positioning on the basis of MPT-1327 cluster communication system

A MPT-1327, GPS positioning technology, applied in the field of public security communication, can solve the problem of no trunking communication system connection, etc., to achieve the effect of cost saving and convenient use

Inactive Publication Date: 2009-07-08
北京市万格数码通讯科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, GPS applications in public security systems mostly use public networks (such as GPRS / GSM) or build a base station alone to support GPS applications. They are not organically connected with existing trunking communication systems. There is an urgent need for an MPT-based Method of Realizing GPS Positioning in 1327 Trunking Communication System

Method used

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  • Method for implementing GPS positioning on the basis of MPT-1327 cluster communication system
  • Method for implementing GPS positioning on the basis of MPT-1327 cluster communication system
  • Method for implementing GPS positioning on the basis of MPT-1327 cluster communication system

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Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1. The radio station regularly reports GPS position information (see Figure 4 ):

[0041] 1) First, set the 201 radio station to send GPS location information at a timing of 60 seconds through the coding software.

[0042] 2) The radio station enters the standby state, the GPS module is initialized, the available satellites are searched, and the GPS information of the current position is obtained.

[0043] 3) Start the timer.

[0044] 4) When the timing is up, the radio station obtains positioning data from the GPS module, including latitude, longitude, ground speed, ground heading and other information. The station unpacks the data, adds the destination address and the ID number of station 201, and sends it to the channel controller through the MPT-1327 short data transmission channel.

[0045] 5) The channel controller receives it, judges that the target address is the scheduling server, and transmits it to the base station controller through Ethernet, ...

Embodiment 2

[0048] Embodiment 2, dispatching terminal queries the current location information of 201 stations (see Figure 6 )

[0049] 1) The radio enters the standby state, the GPS module is initialized, the available satellites are searched, and the GPS information of the current position is obtained.

[0050] 2) The dispatching terminal clicks on the vehicle on the dispatching interface to issue a command to query the current location information of the 201 radio station.

[0051] 3) The scheduling server receives the command and transmits it to the base station controller, which in turn transmits it to the channel controller.

[0052] 4) The channel controller receives it, takes out the target address, and sends it to the radio station 201 through the MPT-1327 short data transmission channel.

[0053] 5) Radio station 201 receives the location information immediately from the GPS module, unpacks the data, adds the destination address and ID number of radio station 201, and sends i...

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Abstract

A method for realizing GPS positioning of mobile terminal based on MPT-1327 trunking communication system comprises the following steps: 1) inserting a GPS module on a mobile terminal for obtaining the GPS information of present position; 2) re-decomposing the GPS information by terminal and packaging, eliminating the redundant data, adding transmission target address and self ID; and 3) transmitting the GPS information to the system with a short data transmission function of MPT-1327. The GPS data transmission has two modes of active transmission and passive transmission. The active transmission means to transmitting the position information of ration station by the radio station to the system through control channel through a mode of definite time or definite space under standby state, and also automatically transmitting the present position information of radio station to the system through traffic channel of trunking communication system under calling state. The passive transmission means to responding after the radio station receives the inquiry command of system and transmits the latest position information to the system.

Description

technical field [0001] The invention belongs to the communication technology, in particular to a method for realizing GPS positioning based on the MPT-1327 trunking communication system, which is mainly used in the field of public security communication. Background technique [0002] Trunking communication system is a dedicated dispatching mobile communication system that shares wireless channels. It adopts multi-channel sharing and dynamic channel allocation technology in modern communication, and has dispatching functions such as individual call, group call, and broadcast call. Its characteristics are call It is fast to set up, users have different priorities, call time is limited, and it has the function of remote death and resurrection, which is very suitable for public security systems. [0003] MPT-1327 is an internationally open dedicated land trunking mobile communication signaling standard. It adopts a dedicated control channel transmission mode of 1200bits / s and de...

Claims

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Application Information

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IPC IPC(8): H04W4/10H04W4/12H04W4/18H04W84/08G01S5/02
Inventor 梁燕生许赤刘君侯卫华
Owner 北京市万格数码通讯科技有限公司
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