Bus network simulation detection test bench

Abstract

The invention relates to a bus network simulation detection test bench which comprises a computer and an external signal port (500). The computer comprises a computer host machine (81) and a USB expansion port (17). The external signal port (500) comprises a serial communication interface. The computer host machine (81) comprises a computer program for simulating a bus actual network. The computer host machine (81) is connected to the serial communication interface which is connected to the USB expansion port (17). The computer program comprises the working state code of bus borne equipment. Compared with the prior art, the bus network simulation detection test bench has the advantages that a bus network environment is simulated through the computer, thus an existing technical scheme of actually connecting network equipment to be repaired or tested to bus electrical equipment to carry out repairing or detecting work is substituted, the safety risk of using an actual bus to repair or detect the network equipment is eliminated completely, and the maintenance and test ability and work efficiency are greatly improved.

Description

technical field [0001] The invention relates to a test bench, in particular to a passenger car network simulation detection test bench. Background technique [0002] Today's railway passenger cars are equipped with a large number of information network equipment to monitor and transmit information from key components of the passenger car, such as the temperature of the axle box, the vibration of the bogie body, the anti-skid of the wheelset, the fire alarm, and the status of the air conditioner, inverter, and door. The basic guarantee for passenger cars to run at high speed. Due to the particularity of bus network equipment, the detection and maintenance of network equipment must be precise. Because various network devices of passenger cars (agent gateway, PLC gateway, axis report gateway, anti-skid gateway, door gateway, pyrotechnic gateway, air-conditioning gateway, etc.) When it is necessary to stop the train, it is carried out using the actual passenger car network env...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of limited maintenance time, need to use DC600V high-voltage power supply and 600Kpa compressed air, etc., limited by the delay time of train arrival and departure, poor detection accuracy, and poor network compatibility, etc. technical defects, the present invention provides a set of maintenance, testing, and testing platforms for bus network equipment to solve the problems of network environment and high-precision test process control that are lacking in the testing, testing, and maintenance of bus network equipment

At the same time, when the present invention solves the network signal environment that is basically consistent with the actual passenger car equipment in the maintenance process of existing railway passenger car network equipment such as gateways or nodes, for example, the detection signal simulation accuracy of RS485, RS232, and HOSTLINK reaches six One in ten thousand, it has the function of automatic judgment, storage and printing of test results

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