CN214215811U - Auxiliary vehicle-mounted device for train positioning - Google Patents

Abstract

The utility model relates to a train location assists car-mounted device, including casing and internal circuit, internal circuit installs in the casing, and a side of casing is the interface board, is equipped with a plurality of connectors on the interface board, and each connector internal circuit is equipped with an extension mechanism outside the interface board, and this extension structure and interface board form an upper end open-ended box body jointly for hold the external cable that links to each other with the connector, be equipped with on the extension mechanism with the interface switch of connector one-to-one, interface switch inserts to each connector and the continuous circuit of internal circuit in. Compared with the prior art, the utility model has the advantages of avoid the plug of outside cable when carrying out functional test, improve the stability that the cable is connected simultaneously.

Description

Auxiliary vehicle-mounted device for train positioning

Technical Field

The utility model relates to a train rack unit especially relates to a supplementary on-vehicle device of train location.

Background

The positioning vehicle-mounted unit on the train is an important device for assisting positioning on the train. The positioning on-board unit is usually installed in a cabinet on a train, and adopts a box-shaped shell structure, and a plurality of interfaces for connecting external data cables are arranged outside the box-shaped shell. For example, chinese utility model No. 202020974825.4 discloses a vehicle-mounted unit for positioning a vehicle for a typical box-like housing structure. However, this structure has the following problems: when the positioning vehicle-mounted unit is used for functional test, different interfaces are required to be switched on and off frequently, a plugging and unplugging mode is usually adopted, the interfaces are required to be plugged and unplugged continuously, the operation is very inconvenient, the problem of poor plugging is easy to occur, and the test work is influenced; meanwhile, the data cable is directly connected into the interface from each side, and is not necessarily protected, so that the data cable is easy to loosen and influences normal work.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an auxiliary vehicle-mounted device for train positioning in order to overcome the defect that above-mentioned prior art exists, avoid the plug of outside cable when carrying out functional test, improve the stability that the cable is connected simultaneously.

The purpose of the utility model can be realized through the following technical scheme:

a train positioning auxiliary vehicle-mounted device comprises a shell and an internal circuit, wherein the internal circuit is arranged in the shell, an interface board is arranged on one side surface of the shell, a plurality of connectors are arranged on the interface board, each connector is connected with the internal circuit, an expanding mechanism is arranged outside the interface board, the expanding structure and the interface board jointly form a box body with an opening at the upper end, the box body is used for accommodating external cables connected with the connectors, interface switches which correspond to the connectors one to one are arranged on the expanding mechanism, and the interface switches are connected into lines connected with the connectors and the internal circuit.

Furthermore, a protective cover is arranged outside the interface switch.

Further, the protective cover is of a flip structure.

Further, the protective cover is a transparent cover body.

Furthermore, the shell is of a flat box structure, L-shaped supporting plates are arranged on two sides of the shell, and the supporting plates are used for connecting the train cabinet.

Furthermore, an on-off indicator lamp is arranged on the side edge of each interface switch.

Furthermore, the internal circuit comprises a power supply conversion module, a data receiving module, a data sending module and a state indicating module which are connected with each other; the connector comprises a debugging serial port, a data input interface, a data output interface and a power interface, the data input interface is connected with the data receiving module, the debugging serial port and the data output interface are connected with the data sending module, and the power interface is connected with the power conversion module.

Furthermore, the interface switch comprises a serial port switch, an input interface switch, an output interface switch and a power switch, which are respectively and correspondingly connected with the debugging serial port, the data input interface, the data output interface and the power interface.

Further, the data receiving module comprises a first data isolation unit and a protocol conversion unit which are connected with each other.

Further, the data sending module comprises a data encryption unit and a second data isolation unit which are connected with each other.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a setting has interface switch's extension mechanism, realizes when test, equipment troubleshooting, seek the analysis problem, and the direct traditional cable plug that replaces that opens and shuts through interface switch reduces the artifical maloperation that causes because of the cable plug to and the damage to equipment joint, cable street, can also improve operating efficiency. Meanwhile, the expansion mechanism and the interface board jointly form a box body with an opening at the upper end, the end part of the connected cable can be protected, and the stability of cable connection is improved.

2. A protective cover can be arranged outside the interface switch to protect the switch and avoid mistaken contact.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of an internal circuit.

Reference numerals: 1. the device comprises a shell, 11, a connecting port, 11a, a debugging serial port, 11b, a data input interface, 11c, a data output interface, 11d, a power supply interface, 12, an expansion mechanism, 13, an interface switch, 13a, a serial port switch, 13b, an input interface switch, 13c, an output interface switch, 13d, a power supply interface, 14, a protective cover, 15, a supporting plate, 16, an on-off indicating lamp, 2, an internal circuit, 21, a power supply conversion module, 21a, a first data isolation unit, 21b, a protocol conversion unit, 23a, a data encryption unit, 23b, a second data isolation unit, 22, a data receiving module, 23, a data sending module, 24 and a state indicating module.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 and 2, the present embodiment provides a train positioning assist vehicle-mounted device, which includes a housing 1 and an internal circuit 2, wherein the internal circuit 2 is installed in the housing 1. The shell 1 is of a flat box structure, L-shaped supporting plates 15 are arranged on two sides of the shell, and the supporting plates 15 are used for being connected with a train cabinet. One side surface of the housing 1 is an interface board, a plurality of connection ports 11 are provided on the interface board, and each connection port 11 is connected to the internal circuit 2. An expansion mechanism 12 is arranged outside the interface board, the expansion mechanism and the interface board jointly form a box body with an opening at the upper end and used for accommodating an external cable connected with the connecting ports 11, interface switches 13 which are in one-to-one correspondence with the connecting ports 11 are arranged on the expansion mechanism 12, and the interface switches 13 are connected into lines connected with the connecting ports 11 and the internal circuit 2.

The internal circuit 2 is an existing train positioning unit circuit board, and generally includes a power conversion module 21, a data receiving module 22, a data transmitting module 23, and a status indicating module 24, which are connected to each other. The connector 11 includes a debugging serial port 11a, a data input port 11b, a data output port 11c and a power source port 11d, the data input port 11b is connected to the data receiving module 22, the debugging serial port 11a and the data output port 11c are connected to the data transmitting module 23, and the power source port 11d is connected to the power source conversion module 21.

The power conversion module 21 is used for obtaining an independent DC110V power from the train, and stabilizing the voltage at a required level through a DC _ DC Buck type voltage reduction principle so as to enable various modules at the later stage to work normally. The conversion efficiency is not lower than 90%. In this embodiment, the power conversion module 21 has a chip model of PN 6005.

The status indication module 24 is used for collecting and displaying various working statuses of the whole train positioning auxiliary vehicle-mounted device and displaying the working statuses in the form of indicator lights (in the embodiment, the working statuses are displayed on an interface board, which is not shown in the figure). The chip model adopted by the state indicating module 24 in this embodiment is STM32F 103.

The data receiving module 22 includes a protocol conversion unit 21b and a first data isolation unit 21 a. The protocol conversion unit 21b is configured to collect data of the vehicle bus in real time, and perform data conversion and transmission. In this embodiment, the model of the chip used by the protocol conversion unit 21b is STM32F407, and the model of the chip used by the first data isolation unit 21a is MS10232 NL.

The data transmission module 23 includes a data encryption unit 23a and a second data isolation unit 23 b. The data encryption unit 23a encrypts the converted data in real time to ensure data security. The second data isolation unit 23b and the first data isolation unit 21a function the same. In this embodiment, the model of the chip used by the protocol conversion unit 21b is STM32F407, and the model of the chip used by the first data isolation unit 21a is MS10232 NL.

A protective cover 14 is arranged outside the interface switch 13, and in this embodiment, the protective cover 14 adopts a transparent flip structure to protect the switch and avoid erroneous contact.

In this embodiment, an on-off indicator light 16 is disposed on a side of each interface switch 13, and the on-off indicator light 16 is electrically connected in parallel with the corresponding interface switch 13 for displaying an on-off state of the corresponding connector 11.

This embodiment is through setting up extension mechanism 12 that has interface switch 13, realizes directly replacing traditional cable plug through opening and shutting of interface switch 13 when test, equipment troubleshooting, seek the analysis problem, reduces because of the artifical maloperation that the cable plug caused to and to the damage in equipment joint, cable street, can also improve operating efficiency. Meanwhile, the expansion mechanism 12 and the interface board jointly form a box body with an opening at the upper end, so that the end part of the connected cable can be protected, and the stability of cable connection is improved.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims (10)

1. The train positioning auxiliary vehicle-mounted device comprises a shell (1) and an internal circuit (2), wherein the internal circuit (2) is installed in the shell (1), and the train positioning auxiliary vehicle-mounted device is characterized in that one side surface of the shell (1) is an interface board, a plurality of connectors (11) are arranged on the interface board, each connector (11) is connected with the internal circuit (2), an expansion mechanism (12) is arranged outside the interface board, the expansion mechanism (12) and the interface board jointly form a box body with an opening at the upper end and used for containing an external cable connected with the connector (11), interface switches (13) corresponding to the connectors (11) one by one are arranged on the expansion mechanism (12), and the interface switches (13) are connected into lines connected with the connectors (11) and the internal circuit (2).

2. The auxiliary vehicle-mounted device for train positioning as claimed in claim 1, wherein a protective cover (14) is arranged outside the interface switch (13).

3. The auxiliary vehicle-mounted device for train positioning as claimed in claim 2, wherein the protecting cover (14) is a flip structure.

4. The auxiliary vehicle-mounted device for train positioning as claimed in claim 2, wherein the protecting cover (14) is a transparent cover.

5. The train positioning auxiliary vehicle-mounted device according to claim 1, wherein the housing (1) is a flat box structure, and L-shaped support plates (15) are arranged on two sides of the housing, and the support plates (15) are used for connecting train cabinets.

6. The auxiliary train positioning vehicle-mounted device as claimed in claim 1, characterized in that an on-off indicator light (16) is arranged on the side of each interface switch (13).

7. The train positioning auxiliary vehicle-mounted device according to claim 1, wherein the internal circuit (2) comprises a power conversion module (21), a data receiving module (22), a data transmitting module (23) and a status indicating module (24) which are connected with each other; the connector (11) comprises a debugging serial port (11a), a data input interface (11b), a data output interface (11c) and a power interface (11d), the data input interface (11b) is connected with a data receiving module (22), the debugging serial port (11a) and the data output interface (11c) are connected with a data transmitting module (23), and the power interface (11d) is connected with a power conversion module (21).

8. The train positioning auxiliary vehicle-mounted device according to claim 7, wherein the interface switch (13) comprises a serial port switch (12a), an input interface switch (13a), an output interface switch (13b) and a power switch (13d), and the debugging serial port (11a), the data input interface (11b), the data output interface (11c) and the power switch (11d) are correspondingly connected respectively.

9. The on-board unit of train positioning assistance according to claim 7, characterized in that the data receiving module (22) comprises a first data isolation unit (21a) and a protocol conversion unit (21b) connected to each other.

10. The train positioning auxiliary vehicle-mounted device according to claim 7, wherein the data transmission module (23) comprises a data encryption unit (23a) and a second data isolation unit (23b) which are connected with each other.

Images