Tester for passenger car brake monitoring host

Abstract

The utility model provides a tester for a passenger car brake monitoring host, which belongs to the field of testers and comprises an installation box, a touch screen, an analog quantity output module, a boosting module, an electric quantity display module and a lithium battery, and the analog quantity output module, the boosting module, the electric quantity display module and the lithium battery are respectively arranged inside the installation box. The boosting module is arranged on the mounting box and connected with the analog quantity output module and the lithium battery, the electric quantity display module is connected with the lithium battery, the touch screen is arranged on the mounting box and connected with the boosting module and the analog quantity output module, and a DB9 connector is arranged at the top end of the mounting box and connected with the analog quantity output module. The tester provided by the utility model is provided with the DB9 joint which is connected with the detected brake monitoring host, so that the brake monitoring host is detected, normal signal receiving and normal alarm of the brake monitoring host are ensured, the brake monitoring host is ensured to be good, the reliability of the brake monitoring host is improved, and the operation is simple, convenient and fast.

Description

Technical Field

[0001] The utility model relates to the field of testers, in particular to a tester used for a passenger car brake monitoring host. Background Art

[0002] In order to grasp the changing state of vehicle braking force during passenger car operation in real time, brake monitoring equipment was installed on railway 25G / 25T ordinary speed passenger cars in 2016. It is mainly responsible for real-time collection of key data affecting driving safety such as passenger car train pipe, brake cylinder, auxiliary air cylinder, and main air duct air pressure (25T passenger car lacks auxiliary air cylinder pressure monitoring compared to 25G passenger car). The ground server receives pressure data wirelessly transmitted from the passenger car to provide effective diagnostic basis for on-site emergency response and vehicle storage and maintenance.

[0003] At present, when a passenger car is put into the depot for maintenance, the only way is to statically check the status of the brake monitoring host indicator light and manually press the selection button on the brake host to check the monitoring parameters one by one. Dynamic inspection can only be carried out when the train wind test is carried out in the depot, and the maintenance personnel go on board to confirm whether the parameters displayed by the brake monitoring host digital tube are abnormal and whether there is an alarm. Since the brake monitoring host is installed on the vehicle and there is no portable equipment for inspecting the brake monitoring host, the inspection is inconvenient. When the vehicle wind test is good, it is impossible to judge whether the alarm function of the equipment is normal; the maintenance depot has no portable equipment to simulate the detection of various faults of the brake monitoring host, and the hidden faults in the safe operation monitoring of the passenger car are not discovered in time. Therefore, a tester for the brake monitoring host of a passenger car is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a tester for a passenger car brake monitoring host, which solves the technical problem of inconvenient detection of the existing brake monitoring host. The tester provided in the utility model is used by maintenance personnel to carry it to the site after the passenger car is put into storage to detect the passenger car brake monitoring host and ensure that the brake monitoring host is in good condition. The operation is simple, convenient and fast.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A tester for a passenger car brake monitoring host comprises an installation box, a touch screen, an analog output module, a boost module, a power display module and a lithium battery. The analog output module, the boost module, the power display module and the lithium battery are respectively arranged inside the installation box, and the boost module is respectively connected to the analog output module and the lithium battery, the power display module is connected to the lithium battery, the touch screen is arranged on the installation box, the touch screen is respectively connected to the boost module and the analog output module, and a DB9 connector is arranged on the top of the installation box, and the DB9 connector is connected to the analog output module.

[0007] Furthermore, a network cable interface and a vent are respectively provided at the top of the installation box, and the network cable interface and the vent are arranged on one side of the DB9 connector, and the DB9 connector is connected to the external brake monitoring host.

[0008] Furthermore, a power switch is provided at the left end of the installation box, the power switch is connected between the boost module and the lithium battery, a power display screen is provided at the lower side of the power switch, the power display screen is connected to the power display module, and a charging port is provided at the upper side of the power switch, the charging port is connected to the lithium battery.

[0009] Furthermore, the power display module is connected between the power switch and the boost module, the charging port is connected between the lithium battery and the power switch, and a fuse is provided between the charging port and the power switch.

[0010] Furthermore, a working indicator light is provided at the lower right corner of the touch screen, and the COM1 port of the touch screen is communicatively connected with the analog output module.

[0011] Furthermore, line 1 of the touch screen COM1 port is connected to DATA- of the analog output module, and line 2 of the touch screen COM1 port is connected to DATA+ of the analog output module.

[0012] Furthermore, line 1 of the DB9 connector is connected to OUTO+ of the analog output module, line 2 of the DB9 connector is connected to OUT1+ of the analog output module, line 3 of the DB9 connector is connected to OUT2+ of the analog output module, and line 4 of the DB9 connector is connected to OUT3+ of the analog output module.

[0013] Further, line 5, line 6, line 7, line 8 and line 9 of the DB9 connector are connected in series, and line 5 of the DB9 connector is respectively connected to OUTO-, OUT1-, OUT2- and OUT3- of the analog output module.

[0014] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0015] The tester of the utility model is provided with a DB9 connector to be connected with the brake monitoring host to be tested, so as to detect the brake monitoring host to ensure that the brake monitoring host can normally receive signals and alarm normally, ensure that the brake monitoring host is in good condition, improve the reliability of the brake monitoring host, and operate simply, conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model tester;

[0017] Figure 2 It is the structural block diagram of the utility model tester;

[0018] Figure 3 It is the circuit principle diagram of the utility model tester;

[0019] Figure 4 It is a circuit schematic diagram of the boost module of the utility model.

[0020] In the attached figure, 1-installation box, 2-touch screen, 3-analog output module, 4-boost module, 5-power display module, 6-lithium battery, 7-DB9 connector, 8-power switch, 9-charging port, 10-working indicator light, 11-power display screen, 12-network cable interface, 13-ventilation port. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0022] like Figure 1-4 As shown, a tester for a passenger car brake monitoring host comprises an installation box 1, a touch screen 2, an analog output module 3, a boost module 4, a power display module 5 and a lithium battery 6, wherein the analog output module 3, the boost module 4, the power display module 5 and the lithium battery 6 are respectively arranged inside the installation box 1, and the boost module 4 is respectively connected to the analog output module 3 and the lithium battery 6, and the boost module 4 is an XL6019 boost module; the analog output module 3 is a Zhouzheng DAQM4204 analog output module; the power display module 5 is connected to the lithium battery 6, and the power display module 5 is a 2-wire green (0.36-inch 4-30V); the lithium battery 6 is a YSN-7403000, 7.4V3000mAh lithium battery, the touch screen 2 is arranged on the installation box 1, and the touch screen 2 is respectively connected to the boost module 4 and the analog output module 3, and the touch screen 2 is a Weiluntong MT8050IE touch screen, and a DB9 connector 7 is arranged on the top of the installation box 1, and the DB9 connector 7 is connected to the analog output module 3. The tester provided in the utility model is used for after the passenger bus is put into storage, and the maintenance personnel carry it to the site for operation to realize the detection of the passenger bus brake monitoring host computer, so as to ensure that the brake monitoring host computer is in good condition, and the operation is simple, convenient and fast.

[0023] like Figure 1-2As shown, the top of the installation box 1 is also provided with a network cable interface 12 and a vent 13, and the network cable interface 12 and the vent 13 are provided on one side of the DB9 connector 7, the DB9 connector 7 is connected to the external brake monitoring host, and the DB9 connector 7 is used to connect the analog output terminal of the analog output module 3 to the external brake monitoring host. DB9 connector No. 1 is connected to the train pipe signal input end of the external brake monitoring host, DB9 connector No. 2 is connected to the brake cylinder signal input end of the external brake monitoring host, DB9 connector No. 3 is connected to the auxiliary air cylinder signal input end of the external brake monitoring host, and DB9 connector No. 4 is connected to the main air duct signal input end of the external brake monitoring host. A power switch 8 is provided at the left end of the installation box 1. The power switch 8 is used to control the switch of the tester. The power switch 8 is connected between the boost module 4 and the lithium battery 6. A power display screen 11 is provided at the lower side of the power switch 8. The power display screen 11 is connected to the power display module 5 and is used to display the remaining power of the lithium battery 6. A charging port 9 is provided on the upper side of the power switch 8. The charging port 9 is connected to the lithium battery 6 and is used to charge the lithium battery 6. The lithium battery 6 is used to power the power display and DC-DC boost module (24V).

[0024] In the embodiment of the utility model, a working indicator light 10 is provided at the lower right corner of the touch screen 2, and the COM1 port of the touch screen 2 is connected to the analog output module 3. The overall size of the tester is 128*103*59mm, and a Weiluntong 5-inch touch screen is used. By operating the touch screen 2, the Zhouzheng DAQM4204 analog output module outputs the corresponding current value.

[0025] like Figure 3-4 As shown, the power display module 5 is connected between the power switch 8 and the boost module 4. The power display module 5 is a 12V voltage display module. The boost module 4 is a DC-DC boost module (24V), which is used to boost the 7.4V lithium battery voltage to 24V to power the TK8050IE touch screen and DAQM4204 analog output module. The charging port 9 is connected between the lithium battery 6 and the power switch 8. A fuse is provided between the charging port 9 and the power switch 8. The power switch 8 is used to switch on and off the 7.4V3000mAh lithium battery output load.

[0026] In the embodiment of the utility model, line 1 of the COM1 port of the touch screen 2 is connected to DATA- of the analog output module 3, and line 2 of the COM1 port of the touch screen 2 is connected to DATA+ of the analog output module 3. Line 1 of the DB9 connector 7 is connected to OUTO+ of the analog output module 3, line 2 of the DB9 connector 7 is connected to OUT1+ of the analog output module 3, line 3 of the DB9 connector 7 is connected to OUT2+ of the analog output module 3, and line 4 of the DB9 connector 7 is connected to OUT3+ of the analog output module 3. Lines 5, 6, 7, 8 and 9 of the DB9 connector 7 are connected in series, and line 5 of the DB9 connector 7 is respectively connected to OUTO-, OUT1-, OUT2- and OUT3- of the analog output module 3. The analog output module 3 outputs a total of 4 4-20mA current signals, which are respectively connected to the common terminals 1-4 and 5-9 of the DB9 connectors.

[0027] In an embodiment of the utility model, the positive electrode of the lithium battery is connected to the positive electrode of the input end of the boost module, and the negative electrode of the lithium battery is connected to the negative electrode of the input end of the boost module; the power switch is arranged between the lithium battery and the boost module, the power display module is arranged between the power switch and the boost module, the charging port is arranged between the power switch and the lithium battery, and a fuse is arranged between the charging port and the power switch; the positive electrode of the output end of the boost module is respectively connected to the positive electrode of the working indicator light, the positive electrode of the touch screen, and the positive electrode of the analog output module, and the negative electrode of the output end of the boost module is respectively connected to the negative electrode of the working indicator light, the negative electrode of the touch screen, and the negative electrode of the analog output module; the brake monitoring host sensor input end is connected through the DB9 connector, and the static state, relief state, and braking state of the brake monitoring host are tested through the touch screen to detect whether the brake monitoring host receives the sensor signal normally; and the brake monitoring host is subjected to fault simulation alarms such as poor relief, natural relief, natural braking, sensor failure, and head and tail vehicle settings to detect whether the brake monitoring host can alarm normally. The tester of the utility model can simulate the braking / relieving state of a passenger car during operation, and detect the alarm state of a brake monitoring host by simulating a fault phenomenon, thereby improving the reliability of the equipment.

[0028] How it works

[0029] After the bus is put into storage, the maintenance personnel carry the tester to the site and connect the DB9 connector to the brake monitoring host to be tested. The tester uses an analog output module to output 4-20mA current. The analog output module outputs 4 4-20mA current signals, which are connected to the common terminals 1-4 and 5-9 of DB9 connectors respectively. DB9 connector No. 1 is connected to the train pipe signal input terminal of the brake monitoring host to be tested, DB9 connector No. 2 is connected to the brake cylinder signal input terminal of the brake monitoring host to be tested, DB9 connector No. 3 is connected to the auxiliary air cylinder signal input terminal of the brake monitoring host to be tested, and DB9 connector No. 4 is connected to the main air duct signal input terminal of the brake monitoring host to be tested. The tester sends a normal pressure signal (4mA current) by default when it is turned on. The touch screen displays the current output pressure value (current signal conversion). The tester performs static state test (pressure 0kpa) on the brake monitoring host, relief state test (train pipe 600kpa, auxiliary air cylinder 598kpa), braking state test (train pipe 431kpa, brake cylinder 428kpa, auxiliary air cylinder 512kpa), relief bad state (in this state, the pressure of the train pipe and auxiliary air cylinder is increased to 600kpa within 1 minute under the braking state, and the brake cylinder is depressurized to 328kpa), natural relief state (in this state, the brake cylinder is depressurized to 0kpa within 1 minute under the braking state), natural braking state (in this state, the brake cylinder pressure is pressurized to 205kpa in the relief state), sensor failure (sends 0mA current signal to the train pipe, brake cylinder, main air duct and auxiliary air cylinder), first and last car settings (pressurizes the main air duct to 599kpa). The above functions can be realized by simply clicking the corresponding function on the touch screen.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tester for a passenger car brake monitoring host, characterized in that: It includes an installation box, a touch screen, an analog output module, a boost module, a power display module and a lithium battery. The analog output module, the boost module, the power display module and the lithium battery are respectively arranged inside the installation box, and the boost module is respectively connected to the analog output module and the lithium battery, the power display module is connected to the lithium battery, the touch screen is arranged on the installation box, the touch screen is respectively connected to the boost module and the analog output module, and a DB9 connector is arranged on the top of the installation box, and the DB9 connector is connected to the analog output module.

2. A tester for a passenger car brake monitoring host according to claim 1, characterized in that: The top of the installation box is also provided with a network cable interface and a vent, and the network cable interface and the vent are arranged on one side of the DB9 connector, and the DB9 connector is connected to the external brake monitoring host.

3. A tester for a passenger car brake monitoring host according to claim 1, characterized in that: A power switch is provided at the left end of the installation box, and the power switch is connected between the boost module and the lithium battery. A power display screen is provided at the lower side of the power switch, and the power display screen is connected to the power display module. A charging port is provided on the upper side of the power switch, and the charging port is connected to the lithium battery.

4. A tester for a passenger car brake monitoring host according to claim 3, characterized in that: The power display module is connected between the power switch and the boost module, the charging port is connected between the lithium battery and the power switch, and a fuse is arranged between the charging port and the power switch.

5. The tester for passenger car brake monitoring host according to claim 1, characterized in that: A working indicator light is provided at the lower right corner of the touch screen, and the COM1 port of the touch screen is connected to the analog output module for communication.

6. A tester for a passenger car brake monitoring host according to claim 5, characterized in that: Line 1 of the touch screen COM1 port is connected to the DATA- of the analog output module, and line 2 of the touch screen COM1 port is connected to the DATA+ of the analog output module.

7. The tester for passenger car brake monitoring host according to claim 1, characterized in that: Line 1 of the DB9 connector is connected to OUTO+ of the analog output module, line 2 of the DB9 connector is connected to OUT1+ of the analog output module, line 3 of the DB9 connector is connected to OUT2+ of the analog output module, and line 4 of the DB9 connector is connected to OUT3+ of the analog output module.

8. The tester for a passenger car brake monitoring host according to claim 1, characterized in that: Line 5, line 6, line 7, line 8 and line 9 of the DB9 connector are connected in series, and line 5 of the DB9 connector is connected to OUTO-, OUT1-, OUT2- and OUT3- of the analog output module respectively.

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