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A gsm-r network recording system and acquisition unit

A technology of GSM-R, recording system, applied in transmission system, electrical components, automatic call answering/message recording/call recording and other directions

Active Publication Date: 2011-12-14
BEIJING LIUJIE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no voice signal recording solution for the characteristics of GSM-R dedicated network; although in the GSM-R network mobile station MS or railway locomotive integrated wireless communication equipment CIR, base transceiver station BTS, base station switching center BSC, mobile switching center MSC, Devices such as IWE (Interworking Equipment) may have a recording function added by the manufacturer, but this recording function is a software or hardware component of the device. If the manufacturer does not support it, it does not have this function

Method used

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  • A gsm-r network recording system and acquisition unit
  • A gsm-r network recording system and acquisition unit
  • A gsm-r network recording system and acquisition unit

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] Embodiment 1, a kind of GSM-R network recording system, such as figure 1 shown, including:

[0051] Acquisition unit, connected with one or more of the following interfaces, Abis interface, A interface or PRI interface; used to collect voice signals from the connected interfaces, and demodulate the collected voice signals to obtain original data; the Abis interface It is the interface between the BTS and the BSC, the A interface is the interface between the BSC and the MSC, and the PRI interface is the interface between the MSC and other fixed telephone networks;

[0052] a processing unit for performing protocol analysis on the original data and extracting voice data;

[0053] The storage unit is used to save the extracted voice data.

[0054] In this embodiment, the voice data extracted by the processing unit is a recording file; the processing unit can also convert these file formats into more common audio files such as wav format or mp3 as required.

[0055] In t...

Embodiment 2

[0090] Embodiment 2, a collection unit, comprising:

[0091] The acquisition card is connected to one or more of the following interfaces: Abis interface, A interface or PRI interface; used to obtain voice signals from the connected interface; the Abis interface is the interface between the BTS and the BSC, and the A interface It is the interface between the BSC and the MSC, and the PRI interface is the interface between the MSC and other fixed telephone networks;

[0092] a processor for demodulating the acquired voice signal to obtain original data;

[0093] A transmission module, configured to send the original data to the processing unit.

[0094] In this embodiment, the actual number of the Abis interface and the A interface may be one or more; the acquisition card may also be one or more; one acquisition card can simultaneously collect data on multiple interfaces, or Only collect data on one interface.

[0095] In this embodiment, the collection unit may further inclu...

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Abstract

The invention discloses a GSM(Global System for Mobile Communications)-R (Railway) network sound recording system and an acquisition unit thereof. The system comprises the acquisition unit, a processing unit and a storage unit. The acquisition unit is connected with one or more of interfaces including an Abis interface, an A interface and a PRI (Prime Rate Interface); the acquisition unit is used for acquiring voice signals from the connected interface and demodulating the acquired voice signals to obtain raw data; the Abis interface is an interface between a BTS (Base Transceiver Station) and a BSC (Base Station Controller), the A interface is an interface between the BSC and a MSC (Mobile Switching Center), and the PRI is an interface between the MSC and other fixed-line telephone networks; the processing unit is used for executing protocol analysis on the raw data to extract voice data; and the storage unit is used for storing the extracted voice data. The system can record sound for voice signals in a GSM-R private network, and is free from restriction of equipment manufactures.

Description

technical field [0001] The invention relates to the field of monitoring, in particular to a GSM-R network recording system and a collection unit. Background technique [0002] GSM-R (GSM for Railways) system is a comprehensive dedicated digital mobile communication system specially designed for railway communication. On the basis of the advanced voice calling functions of the standard protocol of GSMPhase2+, such as group call, broadcast call, multi-priority preemption and forced dismantling services, it adds functions such as location-based addressing and function addressing, which is suitable for railway communications, especially railways. The need for dedicated scheduling communications. It mainly provides voice communication functions such as wireless train dispatch, marshalling and shunting communication, section maintenance and repair operation communication, emergency communication, tunnel communication, etc. Serve. [0003] Voice communication is one of the main ...

Claims

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Application Information

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IPC IPC(8): H04M1/64H04L29/08H04L29/06
Inventor 蒋文怡陈乐孙斌武贵君
Owner BEIJING LIUJIE TECH CO LTD
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