Automatic test system and method for switching equipment in rail transit system

Abstract

The invention discloses an automatic test system and method for switching equipment in a rail transit system. The system comprises a test control module used for performing test control, an equipmentmanagement module used for managing accessed network device and more than one piece of test equipment used for executing tests. The test control module is connected with the test ends of the test equipment and the tested equipment through the equipment management module. The debugging end of the tested equipment is connected with the test control module, and the test control module configures thetest equipment and the connection between the tested equipment through the equipment management module so as to carry out required network topology configuration and controls the test equipment to test the tested equipment according to a required test task. The method can achieve the automatic testing of the switching equipment in the rail transit system, and has advantages of wide testing range,high testing efficiency and testing precision, and facilitating the implementation of complex topology testing and case reproduction.

Description

technical field [0001] The invention relates to the technical field of rail transit on-board equipment testing, in particular to an automatic testing system and method for switching equipment in a rail transit system. Background technique [0002] In rail transit vehicles, a large number of on-board switching devices (switches) need to be used to complete the network communication between the on-board devices. In order to ensure the normal network communication between the on-board devices, it is necessary to test the on-board switching devices to test the network of the on-board network performance. At present, the test of on-board switching equipment mainly adopts the method of manual testing, that is, firstly, according to the preconditions of the test case, manually connect the test topology and configure the web page of the switch, and then use the contract sending tool software through the Ethernet port of the sending PC Send the data stream to the switch, and finally...

AI Technical Summary

Problems solved by technology

[0004] 1. Switch configuration and test topology construction all need to rely on manual operation, the test efficiency is low, errors are prone to occur, and all operations are done manually, which is not conducive to the reproduction of use cases;

[0005] 2. It can only be applied to simple test topologies, and complex test topologies cannot be constructed to test complex topologies

Since the PC has only one Ethernet port, if a full-mesh test topology is constructed, all 16 ports of the switch need to send and receive Ethernet packets, that is, at least 16 PCs are required, which requires a lot of test resources, and the With the increase of the number of switches, the number of PCs will increase geometrically, and even the test topology of some complex scenarios cannot be constructed.

[0006] 3. Since the test is based on a PC, the scope of the test is very limited, usually limited to the packet loss rate test of unicast and multicast data, and cannot be tested for complex functions such as vehicle network damage and ring network

[0007] 4. The result of the test mainly depends on the packet capture of the program in a PC. It can only count the number of port data streams, but cannot count other judgment indicators such as data stream rate and delay. The judgment of the actual test results is not Inaccurate, and packet capture can only be based on port statistics. When the same port sends multiple Ethernet data streams, statistics based on each data stream cannot be performed

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