MVB communication board of train obstacle detection system

Abstract

The utility model discloses an MVB (Multifunction Vehicle Bus) communication board design aiming at a train obstacle detection system, and particularly relates to a high-speed communication board card applied to the train obstacle detection system and a train TCMS (Train Control and Monitoring System). In order to ensure the high-speed signal transmission function of the MVB communication board and ensure the normal signal transmission, identification and work of each peripheral module, the utility model adopts the design of the MVB communication board with a high-speed signal transmission channel, which consists of a power supply module, a DB9 male socket, a DB9 female socket, a downloading module, an MVB module, an MCU (Microprogrammed Control Unit), a CAN (Controller Area Network) driving module and a 64-pin connector. The MVB communication board inputs voltage from the 64-pin connector through the train obstacle detection system to serve as board card input voltage, communicates with the train obstacle detection system through the CAN driving module and the 64-pin connector in a CAN bus mode and communicates with a train information management system through the MVB module, the DB9 male socket and the DB9 female socket, and the MCU serves as a data processing center to enable all the modules to work in a coordinated mode.

Description

Technical Field

[0001] The utility model relates to a MVB communication board design for a train obstacle detection system, in particular to a high-speed communication board card applied to a train obstacle detection system and a train information management system. Background Art

[0002] For the train obstacle detection system, the communication board with high-speed signal transmission function plays a vital role. With the increase in the number of transmission signals of the train obstacle detection system and the high requirements for the reaction speed of the response mechanism, the design of the MVB communication board with high-speed signal transmission function faces great challenges.

[0003] In order to meet the high performance requirements of the train obstacle detection system for transmission signals and reaction speed and provide a stable high-speed signal transmission function for the train obstacle detection system, this utility model is proposed, which is an MVB communication board with a high-speed signal transmission channel composed of a power module, a DB9 male socket, a DB9 female socket, a download module, an MVB module, an MCU, a CAN driver module, and a 64-pin connector. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a design of an MVB communication board applied to a train obstacle detection system, that is, a circuit with high-speed signal transmission function is realized by using an MVB module, an MCU and some peripheral modules.

[0005] The utility model solves the above-mentioned problem by adopting a technical solution comprising a low-power MCU and a corresponding power module, a DB9 male socket, a DB9 female socket, a download module, an MVB module, a CAN drive module and a 64-pin connector.

[0006] The train obstacle detection system inputs 12V and AGND voltage from the 64-pin connector and provides it to the power module, which is used as the input voltage of the board. After passing through the voltage regulator inside the power module, it outputs two sets of voltages: 5V and GND and 3.3V and GND. The two sets of voltages: 5V and GND and 3.3V and GND are connected to the 5V, 3.3V, and GND pins in the download module, MVB module, MCU, and CAN driver module respectively.

[0007] Pin 1 of the DB9 male socket and the DB9 female socket is connected to pins 1 and 3 of the MVB module, pin 2 of the DB9 male socket and the DB9 female socket is connected to pins 2 and 4 of the MVB module, pin 4 of the DB9 male socket and the DB9 female socket is connected to pins 5 and 7 of the MVB module, and pin 5 of the DB9 male socket and the DB9 female socket is connected to pins 4 and 6 of the MVB module.

[0008] The 4-SWD pin and 5-SWCLK pin of the download module are connected to the 72-PA13 pin and 76-PA14 pin of the MCU respectively. The 16-RST pin, 14-TXD pin and 13-RXD pin of the MVB module are connected to the 88-PD7 pin, 87-PD6 pin and 86-PD5 pin of the MCU respectively. The 81-PD0 pin and 82-PD1 pin of the MCU are connected to the 4-RXD pin and 1-TXD pin of the CAN driver module respectively. The 7-CANH pin and 6-CANL pin of the CAN driver module are connected to the a15, b15 pin and a16, b16 pin of the 64-pin connector respectively.

[0009] The MVB communication board of a train obstacle detection system proposed in the utility model has the following advantages:

[0010] (1) It has two MVB communication ports and strong stability.

[0011] (2)Supports transmission of high-speed signals.

[0012] (3) The method of the utility model is simple and can be well mastered by designers and applied in practical designs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a connection structure diagram of an MVB communication board of a train obstacle detection system in an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0015] Example

[0016] Figure 1 This is a connection structure diagram of an MVB communication board of a train obstacle detection system in an embodiment of the utility model. Figure 1 The MVB communication board of the train obstacle detection system consists of a low-power MCU and a corresponding power module, a DB9 male socket, a DB9 female socket, a download module, an MVB module, a CAN driver module, and a 64-pin connector.

[0017] The train obstacle detection system inputs 12V and AGND voltage from the 64-pin connector and provides it to the power module, which is used as the input voltage of the board. After passing through the voltage regulator inside the power module, it outputs two sets of voltages: 5V and GND and 3.3V and GND. The two sets of voltages: 5V and GND and 3.3V and GND are connected to the 5V, 3.3V, and GND pins in the download module, MVB module, MCU, and CAN driver module respectively.

[0018] Pin 1 of the DB9 male socket and the DB9 female socket is connected to pins 1 and 3 of the MVB module, pin 2 of the DB9 male socket and the DB9 female socket is connected to pins 2 and 4 of the MVB module, pin 4 of the DB9 male socket and the DB9 female socket is connected to pins 5 and 7 of the MVB module, and pin 5 of the DB9 male socket and the DB9 female socket is connected to pins 4 and 6 of the MVB module.

[0019] The 4-SWD pin and 5-SWCLK pin of the download module are connected to the 72-PA13 pin and 76-PA14 pin of the MCU respectively. The 16-RST pin, 14-TXD pin and 13-RXD pin of the MVB module are connected to the 88-PD7 pin, 87-PD6 pin and 86-PD5 pin of the MCU respectively. The 81-PD0 pin and 82-PD1 pin of the MCU are connected to the 4-RXD pin and 1-TXD pin of the CAN driver module respectively. The 7-CANH pin and 6-CANL pin of the CAN driver module are connected to the a15, b15 pin and a16, b16 pin of the 64-pin connector respectively.

[0020] The implementation case of the utility model is based on the MCU model STM32F407VET6 and the MVB module model D039-SZWS-MVBCOM-AB as an example, and this design method can be used to implement the specific MVB communication board.

[0021] The above are preferred examples of the application of the utility model. All equivalent changes and modifications made according to the patent scope of the utility model are within the scope of the utility model.

Claims

1. An MVB communication board for a train obstacle detection system, characterized in that: include: A low-power MCU, power module, DB9 male socket, DB9 female socket, download module, MVB module, CAN driver module, and 64-pin connector.

2. The MVB communication board of the train obstacle detection system according to claim 1, characterized in that: The train obstacle detection system inputs 12V and AGND voltage from the 64-pin connector and provides it to the power module, which is used as the input voltage of the MVB communication board. After passing through the voltage regulator inside the power module, it outputs 5V, 3.3V, and GND. The 5V, 3.3V, and GND are connected to the 5V, 3.3V, and GND pins in the download module, MVB module, MCU, and CAN driver module respectively.

3. The MVB communication board of the train obstacle detection system according to claim 1, characterized in that: Pin 1 of the DB9 male socket and the DB9 female socket is connected to pins 1 and 3 of the MVB module, pin 2 of the DB9 male socket and the DB9 female socket is connected to pins 2 and 4 of the MVB module, pin 4 of the DB9 male socket and the DB9 female socket is connected to pins 5 and 7 of the MVB module, and pin 5 of the DB9 male socket and the DB9 female socket is connected to pins 4 and 6 of the MVB module.

4. The MVB communication board of the train obstacle detection system according to claim 1, characterized in that: The 4-SWD pin and 5-SWCLK pin of the download module are connected to the 72-PA13 pin and 76-PA14 pin of the MCU respectively.

5. The MVB communication board of the train obstacle detection system according to claim 1, characterized in that: The 16-RST pin, 14-TXD pin and 13-RXD pin of the MVB module are connected to the 88-PD7 pin, 87-PD6 pin and 86-PD5 pin of the MCU respectively.

6. The MVB communication board of the train obstacle detection system according to claim 1, characterized in that: The 4-RXD pin and 1-TXD pin of the CAN driver module are connected to the 81-PD0 pin and 82-PD1 pin of the MCU respectively; the 7-CANH pin and 6-CANL pin of the CAN driver module are connected to the a15, b15 pin and a16, b16 pin of the 64-pin connector respectively.

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