Communication Line Automatic Test System

Abstract

The invention relates to a communication circuit automatic test system comprising a telephone network automatic test server set at a local side and a telephone terminal line automatic test device arranged at a station side and connected in parallel with a telephone. The telephone network automatic test server and the telephone terminal line automatic test device are connected by a communication line to be tested. The telephone network automatic test server comprises an industrial personnel computer which runs dial test software and can transmit and receive DTMF signals, a voice board card which provides a call channel for the industrial personnel computer to call the telephone terminal line automatic test device, and a client / software terminal which is connected with the industrial personnel computer and used for setting and detection result query. The telephone terminal line automatic test device comprises a DC power supply which is connected with the communication line, a single chip microcomputer which is powered by the DC power supply, and a DTMF transceiver module which is connected with the single chip microcomputer and transmits and receives DTMF signals. The communication circuit automatic test system can meet the current communication line test demand and help improve the level of intelligence of communication network running management.

Description

technical field [0001] The invention relates to a system for automatic testing of communication lines. Background technique [0002] With the rapid development of smart grid, substations of 500kV and below are all unattended stations. According to the management requirements of the State Grid, the communication lines in the station need to be checked regularly to prevent the problem of poor communication during emergency response; It is necessary to carry out regular and regular tests and inspections on important positions to ensure smooth terminal communication; automation equipment uses the telephone network and lines for data transmission, and if a fault occurs, the terminal line can be detected at the central office, which can reduce manpower and material resources to enter the station for inspection. [0003] At present, the usability test of communication terminal lines mainly relies on manual or automatic dialing of the test server to make check-up calls to telephones...

AI Technical Summary

Problems solved by technology

[0003] At present, the usability test of communication terminal lines mainly relies on manual or automatic dialing of the test server to make check-up calls to telephones, and to determine the availability of post telephones through manual response responses, which requires a lot of manpower input

[0004] Terminal devices that can be used for automatic answering of communication terminal lines include modems or telephone answering machines, etc., but the shortcomings of the above devices are mainly reflected in the need for external power supply; it may affect the normal use of the phone; it cannot adjust the number of ringing responses and use the caller Number judgment, automatic answering control, etc., the most important thing is that it cannot effectively cooperate with the telephone network automatic test server to judge the voice quality of the telephone channel

Therefore, the existing test system is difficult to meet the demand

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