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Monitoring device for multi-network-integrated communication system

A communication system and monitoring device technology, which is applied in the direction of fault location and fault detection according to conductor type, can solve the problems of incorrect transmission performance, failure to reflect fault information, and different transmission characteristics and reflection characteristics, so as to reduce repeated transmission and save Effect of cost and increased detection distance

Pending Publication Date: 2018-03-09
TONGHAO CABLE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if figure 1 As shown in the test diagram of the transmission characteristics of the leaky cable at different frequencies, for the multi-network-in-one leaky cable system, according to the characteristics of the leaky cable itself, when the leaky cable transmits frequency sweep signals of different frequencies, its transmission characteristics and reflection characteristics are obvious Different networks, due to their different frequencies, leaky cables have different impacts on their transmission performance, resulting in monitoring results that are not accurate and reliable for different networks. Therefore, a single frequency leaky cable monitoring technology is used to reflect the leakage of multiple network integration. The transmission performance of the cable at different operating frequencies is incorrect and cannot reflect the actual fault information, resulting in continuous occurrence of missed or false positive information

Method used

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  • Monitoring device for multi-network-integrated communication system
  • Monitoring device for multi-network-integrated communication system
  • Monitoring device for multi-network-integrated communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] like figure 2 and image 3 As shown, the present invention includes monitoring equipment and network management. The monitoring equipment performs information interaction with the network management through optical cables or data lines. The monitoring equipment is used to send radio frequency signals and monitor leaky cables. Scanning time, scanning sequence and other information such as leaky cable location, alarm information of different networks and leaky cable length, etc., and send the parameters to the monitoring equipment.

[0028] The monitoring equipment includes a detection module, a signal splitting module and a signal combining module. The detecting module is connected to the network management. There are multiple signal splitting modules and signal combining modules. The signal branching unit is provided with a comprehensive port and a plurality of detection signal ports, the signal branching module is connected to the detection unit through a comprehensi...

Embodiment 2

[0033] Due to the different attenuation of leaky cables in different frequency bands, taking the 500m public network as an example, the common method is to use the shortest distance of the detection unit as the standard, but for longer links, the transmission loss increases with the increase of frequency. To save resources, a solution for detecting longer leaky cables with low-frequency signals can be used.

[0034] like Figure 4 and Figure 5 As shown, the present invention includes monitoring equipment and network management. The monitoring equipment performs information interaction with the network management through optical cables or data lines. The monitoring equipment is used to send radio frequency signals and monitor leaky cables. Scanning time, scanning sequence and other information such as leaky cable location, alarm information of different networks and leaky cable length, etc., and send the parameters to the monitoring equipment.

[0035] The monitoring equipme...

Embodiment 3

[0039] like Image 6 As shown, the difference between this embodiment and Embodiment 2 is that there are multiple monitoring devices, and multiple monitoring devices respectively send high, medium and low frequency detection signals, high frequency detection signals, high and high frequency detection signals, high and low frequency detection signals, and high and medium frequency detection signals. signal, high-frequency detection signal, high-middle-low frequency detection signal. Among them, the principle block diagram of the monitoring equipment in the monitoring frequency band is as follows: Figure 4 As shown, the frequency band ports corresponding to the signal combining module of the non-detection frequency band are directly connected to each other, and the ports of the corresponding signal splitting module are connected to the load.

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Abstract

The invention discloses a monitoring device for a multi-network-integrated communication system. The monitoring device comprises a monitoring apparatus and a network management apparatus; the monitoring apparatus exchanges information with the network management apparatus through an optical cable or a data line; the monitoring apparatus includes a detection module, signal splitting modules and signal combining modules; the detection module is connected with the network management apparatus; a plurality of signal splitting modules and signal combining modules are provided separately; each signal splitting module is provided with one integrated port and a plurality of detection signal ports; the signal splitting module is connected with the detection unit through the integrated port; the signal splitting module is connected with the signal combining unit through the detection signal ports; each signal combining module is provided with a plurality of input ports and one output port; the signal combining module is connected with the signal splitting unit through the plurality of input ports; and the signal combining module is connected with a leaky cable through the output port. The monitoring device of the invention can simultaneously monitor the transmission characteristics of the leaky cables under a plurality of networks, can accurately locate a fault point, and is suitable forthe monitoring of leaky cables of various lengths and various frequencies.

Description

technical field [0001] The invention relates to the technical field of leaky cable monitoring for wireless communication systems, in particular to a communication system monitoring device for multi-network integration. Background technique [0002] With the development of urban rail transit and passenger dedicated lines, the operation quality of the wireless communication system affects the operation safety and passenger communication quality. For the improvement of network requirements, especially in tunnels, the propagation of wireless electromagnetic waves is limited, resulting in poor communication. Therefore, the wireless communication system uses leaky cables for communication network coverage to ensure that the propagation of wireless electromagnetic waves is not restricted. At present, due to the coexistence of various communication network standards, and with the improvement of the leaky cable technology level, it is possible to use the multi-network-in-one leaky ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCG01R31/083
Inventor 王志辉尚爱民王胜军王如彬白龙刚魏腾飞郭明明
Owner TONGHAO CABLE GRP CO LTD