Adapter for high-speed rail JRU test

Abstract

The invention relates to an adaptive device for a high-speed rail JRU test. One end of the device is connected with JRU test equipment, and the other end of the device is connected with JRU equipment to be tested; at least one rectangular connector used for being connected with JRU test equipment is arranged on one face of the device. A connector connected with JRU equipment to be tested is arranged on the other surface of the device; the rectangular connector is connected with a connector connected with JRU equipment to be tested through a cable in the adapter device; the connector connected with the JRU equipment to be tested comprises a DB9 connector, a circular aviation plug and a crystal head connector. Compared with the prior art, the device has the advantages of being simple in structure, convenient to plug and pull, capable of achieving rapid building of a plurality of JRU testing environments and the like.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed rail JRU testing, and in particular to an adapter device for high-speed rail JRU testing. Background Art

[0002] JRU (Juridical Recording Unit) is an event recording device installed for EMUs running on high-speed railways under the UNISIG framework, commonly known as the black box of high-speed trains. JRU is used to record the original information collected by the on-board equipment during the operation of the train and the control information output by the on-board equipment. It records all key data in the operation of high-speed trains. At present, high-speed trains with a speed of 300 kilometers per hour are equipped with ETCS-certified JRUs, while the signal system of lines with a speed of 200 kilometers per hour uses domestically produced LKJ (train operation monitoring and recording device) recorders. The data recorded in JRU is not only used to ensure the driving safety of trains, but also has great significance for the research of high-speed trains and railway technology.

[0003] JRU data provides first-hand data materials for the construction of high-speed railways, which can help technicians better locate problems, solve problems, and propose better solutions. Therefore, the analysis of JRU data is very important. At present, some scientific research institutions have made certain achievements in studying the operation status of high-speed trains using JRU data, and are in a leading position in the world. The research results include real-time transmission of train data, analysis of messages, and intuitive display of train operation status, thus providing a basis for the analysis and maintenance of equipment failures and providing an effective monitoring method for the safe operation of trains.

[0004] The HFT-01 hardware function test equipment (hereinafter referred to as "JRU test equipment") is used for the hardware function test of JRU. During the test, multiple cables are used to connect directly between the test equipment and the JRU to be tested. However, during the JRU test, since there are many ports that need to be tested, multiple cables are required to transfer between the JRU to be tested and the JRU test equipment. Since the external interfaces of the JRU test equipment are all rectangular connectors, the JRU to be tested has multiple interfaces such as network ports, DB9 connectors, and round aviation plugs, and the connections of each interface are crossed, which will cause confusion in the cable connection. When multiple JRUs need to be tested continuously, the purpose of quick plugging and unplugging cannot be achieved.

[0005] How to quickly build the JRU test environment has become a technical problem that needs to be solved. Summary of the invention

[0006] The purpose of the present invention is to provide an adaptation device for high-speed rail JRU testing in order to overcome the defects of the above-mentioned prior art.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] According to one aspect of the present invention, an adapter device for high-speed rail JRU testing is provided, one end of the device is connected to the JRU testing device, and the other end is connected to the JRU device to be tested; at least one rectangular connector for connecting to the JRU testing device is arranged on one side of the device; and a connector for connecting to the JRU device to be tested is arranged on the other side of the device;

[0009] The rectangular connector and the connector connected to the JRU device to be tested are connected via a cable inside the adapter;

[0010] The connectors for connecting the JRU device to be tested include a DB9 connector, a round aviation plug, and a crystal head connector.

[0011] Preferably, the device is connected to the communication board of the JRU device to be tested via a DB9 connector.

[0012] Preferably, the device is connected to the acquisition board of the JRU device to be tested via a round aviation plug.

[0013] Preferably, the device is connected to a processing board of the JRU device to be tested via a crystal head connector.

[0014] Preferably, a plurality of rectangular connectors are provided, and each rectangular connector is individually connected to one or more of a DB9 connector, a round aviation plug and a crystal head connector.

[0015] Preferably, the four pins of the rectangular connector are respectively connected to the white-orange, orange, white-green and green pins of the crystal plug connector.

[0016] Preferably, the 30 pins of the rectangular connector are respectively connected to pins 1 to 30 of the circular aviation plug (12).

[0017] Preferably, the DB9 connector includes a DB9 male connector and a DB9 female connector.

[0018] More preferably, the 9 pins of the rectangular connector are respectively connected to the 9 pins of the DB9 female connector, and the other pin of the rectangular connector is connected to the shell of the DB9 female connector.

[0019] More preferably, the 9 pins of the rectangular connector are respectively connected to the 9 pins of the DB9 male connector, and the other 1 pin and 6 pins of the rectangular connector are all connected to the shell of the DB9 male connector.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The adapter device of the present invention arranges multiple connectors for connecting the JRU test device and the JRU device to be tested on different surfaces. The connectors on different surfaces are connected by cables inside the adapter to match the test requirements between the JRU device to be tested and the JRU test device. The device has a simple structure, is easy to plug and unplug, and supports the rapid establishment of a test environment for multiple JRUs.

[0022] 2. The connector used in the present invention is cheap, mature and reliable, and the cables are connected and arranged inside the adapter, which is plug-and-play and avoids the problem of cable confusion during multi-JRU testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure and connection of the adapter device in the present invention;

[0024] Figure 2 It is a schematic diagram of the arrangement of the rectangular connector in the adapter device of the present invention;

[0025] Figure 3 It is a schematic diagram of the arrangement of other connectors in the adapter device of the present invention;

[0026] In the accompanying drawings, 1 is an adapter device, 2 is a JRU test device, 3 is a JRU device to be tested, 10 is a rectangular connector, 11 is a DB9 connector, 12 is a round aviation plug, 13 is a crystal head connector, 31 is a communication board, 32 is an acquisition board, and 33 is a processing board. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] This embodiment relates to an adapter device for high-speed rail JRU testing, including a box, a cover plate, a DB9 connector 11 (including a DB9 male connector and a DB9 female connector), a round aviation plug 12, a crystal head connector (RJ45) 13 and a rectangular connector 10, and cables connecting the rectangular connector and each connector. Optionally, the model of the round aviation plug 12 is Y11P-2041ZJ10.

[0029] The box body of the device is a rectangular parallelepiped. After the internal cables are connected, a cover plate is put on for sealing. When in use, external devices can be connected to the connectors of the device.

[0030] The rectangular connector 10 is arranged on one surface (such as the front) of the adapter 1 and is used to connect to the JRU test device 2. When multiple JRU devices 3 to be tested are tested continuously, the connector of the JRU test device 2 can be prevented from being worn out due to multiple plugging and unplugging.

[0031] Other connectors (DB9 connector 11, round aviation plug 12 (Y11P-2041ZJ10), crystal head connector 13 (RJ45)) are arranged on the other side (such as the back side) of the adapter 1 to which the rectangular connector 10 is located, and are used for connecting to the JRU device 3 to be tested.

[0032] During the test, the JRU test device 2 is connected to the JRU device 3 to be tested through the adapter device. The JRU test device 2 is connected to the rectangular connector 10 of the adapter device 1. The cables passing through the inside of the adapter device 1 reach the DB9 connector (male), DB9 connector (female), round aviation plug 12 (Y11P-2041ZJ10) and crystal head connector 13 (RJ45) respectively, and then connected to the JRU device 3 to be tested.

[0033] The crystal head connector 13 (RJ45) of the adapter 1 is connected to the processing board 33 (MPU board) of the JRU device 3 to be tested, the DB9 connector 11 is connected to the communication board 31 (MVB board) of the JRU device 3 to be tested, and the round aviation plug 12 is connected to the acquisition board 32 (for collecting 30 channels of JRU) of the JRU device 3 to be tested. In this way, during the test, all interfaces that need to be connected to the JRU device 3 to be tested are connected to the JRU test device 2 through the adapter 1.

[0034] The pin connection relationship between the rectangular connector 10 and the DB9 connector 11 (including the DB9 male connector and the DB9 female connector), the round aviation plug 12 , and the crystal plug connector 13 is customized by the software of the JRU test device 2 .

[0035] This embodiment relates to an adaptation device for high-speed rail JRU testing, such as Figure 2 There are 1 to 21 slots on one side (such as the front side) of the device, among which 4 to 7 and 13 to 14 are arranged with rectangular connectors, corresponding to the first rectangular connector, the second rectangular connector, the third rectangular connector, the fourth rectangular connector, the fifth rectangular connector, and the sixth rectangular connector, respectively.

[0036] like Figure 3 On the opposite surface, a DB9 connector 11, a round aviation plug 12, and a crystal head connector 13 are arranged. Each rectangular connector has 4 columns, each column has 50 pins, namely A1~A50, B1~B50, C1~C50 and D1~D50.

[0037] Each rectangular connector can be connected to one or more of the DB9 connector 11, the circular aviation plug 12 and the crystal head connector 13, and can be connected to multiple of one type of connector, for example, one rectangular connector can be connected to multiple DB9 connectors 11, multiple circular aviation plugs 12 and multiple crystal head connectors 13.

[0038] A1, A2, A3 and A6 of the first rectangular connector are connected to the white-orange, orange, white-green and green pins of the crystal head connector respectively. C1, C2, C3 and C6 of the first rectangular connector are connected to the white-orange, orange, white-green and green pins of the second crystal head connector respectively. Then the crystal head connector is connected to the processing board 33 of the JRU device 3 to be tested.

[0039] The D1 to D9 pins of the first rectangular connector are connected to the 1 to 9 pins of the DB9 connector 11 , respectively, and the D10 pin of the first rectangular connector is connected to the housing of the DB9 connector 11 .

[0040] D21-D50 of the second rectangular connector are respectively connected to pins 1-30 of the first circular aviation plug 12, and then the first circular aviation plug 12 is connected to the acquisition board 32 of the first JRU to be tested, for acquiring 30 channels of the JRU.

[0041] The second rectangular connector can be connected

[0042] D21-D50 of the third rectangular connector are respectively connected to pins 1-30 of the second circular aviation plug 12, and then the second circular aviation plug 12 is connected to the acquisition board 32 of the second JRU to be tested, for acquiring 30 channels of the JRU.

[0043] A1-A2, A4, C1, C2, A6-A9 of the fourth rectangular connector are respectively connected to pins 1-2, 3, 4-5, 6-9 of the first DB9 female connector, and A3 of the fourth rectangular connector is connected to the shell of the first DB9 female connector;

[0044] B4-A5, C6, D4-D5, B6-B9 of the fourth rectangular connector are respectively connected to pins 1-2, 3, 4-5, 6-9 of the first DB9 male connector, and B1-B3, C4-C5 and D3 of the fourth rectangular connector are all connected to the shell of the first DB9 male connector.

[0045] A1-A2, A4, C1, C2, A6-A9 of the fifth rectangular connector are respectively connected to pins 1-2, 3, 4-5, 6-9 of the second DB9 female connector, and A3 of the fifth rectangular connector is connected to the shell of the second DB9 female connector;

[0046] B4-A5, C6, D4-D5, B6-B9 of the fifth rectangular connector are respectively connected to pins 1-2, 3, 4-5, 6-9 of the second DB9 male connector, and B1-B3, C4-C5 and D3 of the fifth rectangular connector are all connected to the shell of the second DB9 male connector.

[0047] The DB9 connector 11 is matched with a DB9 female connector or a DB9 male connector according to the interface condition with the communication board 31 of the JRU device 3 to be tested.

[0048] The number and position of the DB9 connector 11, the round aviation plug 12, and the crystal head connector 13 can be expanded and configured according to the number of the JRU devices 3 to be tested, supporting the simultaneous testing of multiple JRU devices 3 to be tested. It also supports the addition of other interfaces to achieve plug-and-play, speed up the construction of the JRU test environment, and avoid confusion in cable connections.

[0049] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An adapter device for high-speed rail JRU testing, characterized in that: One end of the device is connected to a JRU test device (2), and the other end is connected to a JRU device to be tested (3); at least one rectangular connector (10) for connecting to the JRU test device (2) is arranged on one side of the device; and a connector for connecting to the JRU device to be tested (3) is arranged on the other side of the device; The rectangular connector (10) and the connector connected to the JRU device (3) to be tested are connected via a cable inside the adapter; The connector connected to the JRU device (3) to be tested comprises a DB9 connector (11), a round aviation plug (12) and a crystal head connector (13).

2. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The device is connected to the communication board (31) of the JRU device (3) to be tested via a DB9 connector (11).

3. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The device is connected to a collection board (32) of a JRU device (3) to be tested via a circular aviation plug (12).

4. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The device is connected to a processing board (33) of a JRU device (3) to be tested via a crystal head connector (13).

5. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The rectangular connectors (10) are provided in plurality, each rectangular connector being individually connected to one or more of a DB9 connector (11), a circular aviation plug (12) and a crystal head connector (13).

6. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The four pins of the rectangular connector (10) are respectively connected to the white-orange, orange, white-green and green pins of the crystal head connector (13).

7. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The 30 pins of the rectangular connector (10) are respectively connected to pins 1 to 30 of the circular aviation plug (12).

8. The adapter device for high-speed rail JRU testing according to claim 1, characterized in that: The DB9 connector (11) comprises a DB9 male connector and a DB9 female connector.

9. The adapter device for high-speed rail JRU testing according to claim 8, characterized in that: The 9 pins of the rectangular connector (10) are respectively connected to the 9 pins of the DB9 female connector, and the other pin of the rectangular connector (10) is connected to the shell of the DB9 female connector.

10. The adapter device for high-speed rail JRU testing according to claim 8, characterized in that: The 9 pins of the rectangular connector (10) are respectively connected to the 9 pins of the DB9 male connector, and the other 6 pins of the rectangular connector (10) are all connected to the shell of the DB9 male connector.

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