JPS6361839B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a testing device for a monitoring system having a transmission line.

Here, the monitoring system refers to each monitored device (brake device, brake control device,
ATC operation commands, etc.) failure signals, various command signals and operation data (including analog signals: current values, voltage values, brake pressure values, etc.) and digital signals:
(including ON/OFF signals of relay contacts and voltage presence/absence signals), and if a failure signal is input or abnormal operation of the target device occurs, this data is recorded and retained and displayed on the driver's seat display panel. It displays first aid measures for abnormalities and related data, and when the vehicle is parked, the collected data is output to a plotter or the like for use in failure analysis.

FIG. 1 shows the configuration of a conventional monitoring system testing device.

In the figure, 1 is an information processing central station, 2 and 3 are information processing terminal stations, 4 is an information display panel connected to the information processing central station 1, and 5 is a test execution operation that can be connected to the information processing central station 1. board, 6, 7, and 8 are electric devices mounted on the vehicle that are subject to information processing; 9 is the test equipment itself; 1
0 is a transmission path between units.

Next, the operation will be explained. In the lead car, test conditions are set using electrical equipment 6 such as a master controller and a brake handle mounted on the lead car, and the commands are sent to the information processing central station 1. Further, test contents, test commands, etc. are similarly input from the test execution operation panel 5.
In this state, the operator notifies another operator operating the test apparatus main body 9 that the preparations have been completed using a radio or the like. The operator who received the command moves the test device main body 9 and inputs a simulated equivalent input according to the commanded test contents to the terminal station 2 to be tested, and at the same time, the operator in the lead car uses a radio etc. Contact. These operations are repeated in sequence according to the test items. The operator here includes the person who operates the computer in the driver's cab, the person who checks the display contents and judges the test results,
In addition, a person was required to actually input analog signals and digital signals at the terminal station.

As described above, the conventional method requires a plurality of test operators, and even more operators are required when testing many devices at the same time. Furthermore, there was a drawback that the operation was performed via radio, which resulted in a large loss of time.

As a means of solving the above drawbacks, several test directives have been introduced.
It is possible to move the test equipment by issuing commands using 10 lead-in wires, but this would require lead-in work and a command converter on the equipment, which would require a large amount of expense.

This invention was made in view of these points, and by using the transmission line of the system to sequentially transmit all test commands and measurement data without waste, testing can be easily performed with a minimum number of personnel. We provide testing equipment for monitoring systems that can

An embodiment of the invention shown in FIG. 2 will be described below. In the figure, numerals 1 to 8 and 10 are the same as the conventional one. Reference numeral 11 denotes an equivalent signal generator that is connected to the terminal station 2 and generates an equivalent signal equivalent to a failure signal of the electrical equipment 7 according to a command from the central station 1 transmitted via the transmission line 10. It has hardware and processing programs that give instructions to the system. Reference numeral 12 denotes a transmission relay cable connected to the middle of the transmission path to the terminal station 2 to enable transmission between the terminal station 2 and the equivalent signal generator 11.

Next, the operation will be explained. The test condition settings for the lead car are the same as before.

When the command is input to the information processing central station 1, the test program in the information processing central station 1 is started because the test is in progress (detected by the command on the operation panel), and the test code (predetermined for each test content) is activated. a series of numbers) is transmitted. This exam code is
A test program (a program that has a series of input/output programs for each test code built into the test device and activates a simulated signal) corresponding to the code (number) received by the test device main body is executed and an equivalent simulated signal is generated. is input to the terminal station 2 of the device under test. Equivalent simulated signals include analog signals such as motor current, motor voltage, and frame voltage, as well as relay contact signals for brake commands and power running commands, and failure signals, taking the equivalent signals of a propulsion control device as an example. The overcurrent detection relay contact signal, overvoltage detection relay contact signal, etc. are the signals actually measured by the monitoring system. The terminal station 2 responds with this equivalent simulated signal, collects the data of the equivalent simulated signal, converts it into transmission data, and transmits it to the central station 1. In the terminal station, analog signals are A/D converted and read as binary data, and digital signals are read as bit data, which are sent from the terminal station to the central station via a transmission system. The captured data is internally processed and transmitted. This transmission data is transmitted to the central station 1.
The information is displayed on the information display panel 4 connected to the computer, and the test is proceeded by the operator's judgment of the content. Even if the data received by the central station 1 is not displayed on the display panel 4, the central station 1 detects in advance that the test is being executed, and the test program is running. It is also possible to make the determination within the central office 1. In this case, it is also possible to proceed with the diagnosis sequentially without commands from the test execution operation panel 5.

Furthermore, by receiving data from the terminal station 2, which is the device under test, on the test equipment main body 11, it is possible to make a judgment on the test equipment main body 11 without having a test program in the central station 1, and the test command itself can be sent to the test equipment main body 11. It is also possible to issue commands to the terminal station 2 from the test device main body 11. You can also do that. This monitoring system has a display that displays failure results on the central station side, and each monitored device is on the terminal station side, and the actual equivalent signal input is on the terminal station side, and the judgment of the results is on the terminal station side. Since the test is performed using a display, the test can be progressed from either the central office or the tester, but by performing the test at the central office, which has a display, it can be performed by a single operator.

Furthermore, in Fig. 2, point A ₁ , point A ₂ , and point B ₁
The central station 1 can also be tested by connecting the points B2 and _B2 respectively.

According to this invention, by utilizing the transmission path of the system, (1) test commands, condition settings, and judgments can be performed centrally by a single operator; (2)
Since the condition settings of the terminal stations can be confirmed at the central station, operational errors by operators at the terminal stations can be prevented. (3) Test diagnosis can be performed in a short time. Effects such as these can be expected.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a conventional device, and FIG. 2 is a configuration diagram showing an embodiment of the present invention. In the figure,
1 is a central station, 2 and 3 are terminal stations, 10 is a transmission line, 1
1 is an equivalent signal generator. Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

[Claims] 1 A terminal station that collects and transmits data on the operating status of electrical equipment mounted on a vehicle, collects and records the above data from this terminal station, and sends necessary processing and commands to the terminal station with prescribed contents. A central station that displays the above information, a transmission line that connects this central station and the above-mentioned terminal station and transmits signals, A testing device for a monitoring system comprising an equivalent signal generator that generates an equivalent signal equivalent to a failure signal of an electrical device and has a processing program for issuing commands to the terminal station.