CN211123760U - Control board card and train automatic driving system - Google Patents
Control board card and train automatic driving system Download PDFInfo
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- CN211123760U CN211123760U CN202020007983.2U CN202020007983U CN211123760U CN 211123760 U CN211123760 U CN 211123760U CN 202020007983 U CN202020007983 U CN 202020007983U CN 211123760 U CN211123760 U CN 211123760U
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Abstract
The utility model provides a control integrated circuit board and train autopilot system, the control integrated circuit board includes: a first processor: the communication output channel is provided with a switch piece capable of controlling the communication output channel to be switched on and off; a second processor: the second processor may output a control signal to the switching element to control the switching element to be turned on or off. The control panel card can be used for an on-vehicle automatic driving system. The control board card adopts a dual-processor architecture, wherein the working state of the first processor can be monitored by the second processor in real time, and after the board card works abnormally, the second processor can guide the fault of the board card to be safe, so that the safety of the control board card can be improved. The control board card is applied to a rail vehicle control system, and the reliability of the control system can be improved.
Description
Technical Field
The utility model relates to an electronic information technical field, concretely relates to control integrated circuit board and train autopilot system.
Background
The control board card is mainly used for calculating and transmitting control instructions and is required to stably operate an algorithm and output the instructions. With the complexity of the function of the equipment and the improvement of the requirement on the control stability, the requirement on the performance of the control panel card is correspondingly improved.
Take the control in the technical field of rail transit as an example. With the development of the automatic driving technology of rail transit subway vehicles, the performance requirements on the onboard ATO controller board card are higher and higher, and meanwhile, the controller board card needs to meet certain functional safety requirements. To meet the flexible migration of the ATO algorithm, the board needs to support the running of the operating system (e.g., QNX) and requires underlying software platformization. In order to meet the requirement of the ATO for classified storage of an operating system, an application program and operation process data, the ATO controller board card needs to be provided with various storage media, and the process data needs to be stored in a large-capacity data mode. In order to meet the functional safety requirement, the board card needs to monitor functional modules such as a processor, a communication interface, a power supply, application software, platform software and the like in real time, and when any one module fails, the fault of the board card can be guided to safety. The conventional ATO board card can only meet one or more of the above requirements, but cannot meet all of the above requirements of the high-performance vehicle-mounted ATO control board card.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel control integrated circuit board to the technical problem that requires the improvement to the integrated nature of control integrated circuit board, stability among the prior art to based on the application of this integrated circuit board on rail vehicle, provide a train autopilot system.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model discloses at first, provide a control board card, include:
a first processor: the communication output channel is provided with a switch piece capable of controlling the communication output channel to be switched on and off;
a second processor: the second processor may output a control signal to the switching element to control the switching element to be turned on or off.
Preferably, the communication output path includes a first communication output path and a second communication output path, the first communication output path is connected via a first processor interface, and a switch is disposed on the first communication output path, and the second communication output path further includes:
main signal path: the first processor interface is connected out, and a transceiver is arranged on the first processor interface;
a transceiver power supply: connected to the transceiver via the power switch.
Preferably, the control board card further comprises a temperature sensor, wherein the temperature sensor is positioned at the end of the first processor and used for detecting the temperature of the first processor; the second processor is electrically connected with the temperature sensor and generates a control signal of the switch piece according to the temperature signal of the first processor.
Preferably, the control board card further comprises a first power supply for supplying power to the first processor, and a second power supply for supplying power to the second processor; the first power supply is connected with the first diagnostic circuit, and the second power supply is connected with the second diagnostic circuit.
Preferably, the first processor is further connected to the second power supply and the second diagnostic circuit, and can turn off the second power supply output when the second diagnostic circuit feeds back a fault signal; the second processor is further coupled to the first power supply and the first diagnostic circuit and is operable to turn off the first power supply output when the first diagnostic circuit feeds back a fault signal.
The utility model further provides a train autopilot system, including foretell control integrated circuit board.
Preferably, the first path at least comprises two CAN paths and is connected to a train braking system, and the second path at least comprises two Ethernet paths and is connected to a train network control system.
Compared with the prior art, the utility model provides a control integrated circuit board and train control system's beneficial effect lies in:
the control board card adopts a dual-processor architecture, wherein the working state of the first processor can be monitored by the second processor in real time, and after the board card works abnormally, the second processor can guide the fault of the board card to be safe, so that the safety of the control board card can be improved. The control board card is applied to a rail vehicle control system, and the reliability of the control system can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
FIG. 1 is a structural diagram of a control board card of the present invention;
fig. 2 is the utility model discloses control integrated circuit board work flow chart.
In the above drawings:
1-a first power switch, 2-a second power switch, 3-a third switch, 4-a fourth switch, 501-a first transceiver, 502-a second transceiver, 6-a main signal path, 701-a first transceiver power supply, 702-a second transceiver power supply.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed on," "connected to," or "electrically connected to" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It should be noted that the terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.
The utility model discloses at first, provide a control board card, include:
a first processor: the communication output channel is provided with a switch piece capable of controlling the on-off of the communication output channel;
a second processor: in order to monitor the processor and monitor the running state of the main processor and execute corresponding actions when the main processor fails to ensure the normal running of the main processor, the specific second processor can output a control signal to the switching element so as to control the switching element to be turned on or turned off.
Referring to fig. 1, a control board is a board with a dual-processor architecture, in this embodiment, an ARM processor is used as a first processor, a CP L D processor is used as a second processor, a whole board needs DC5V to supply power, the board is rich in internal resources and has 256MByte DDR3 memory, 128MByte NAND Flash, 32MByte NOR Flash, 32MByte SPI Flash, and 8GByte eUSB data storage, a conventional control board stores an operating system, an application program, and running process data in the same storage medium, and frequent read-write operations on the medium easily cause abnormal media data, so that the system cannot be normally started.
The first processor is externally connected with the board card memory and used for calling the stored data in the memory.
Furthermore, two forms of the first processor external communication output path are provided, the communication output path includes a first communication output path and a second communication output path, the first communication output path is connected from the communication port of the first processor, and a switch is disposed on the first communication output path, and the second communication output path further includes:
main signal path 6: is connected out through a first processor interface, and is provided with a transceiver 5;
and the transceiver power supply is communicated with the transceiver 5 through a power switch.
Specifically, a first communication output path is directly contacted with an output port of a first processor through a bus, a switch is directly arranged on the path, the switch is opened, the path is connected, the switch is closed, and the path is closed; in the second communication output path, the main signal path 6 is directly connected out from the interface of the first processor, the switch is disconnected, the power supply of the transceiver is cut off, and the second communication path is closed.
Specifically, in the embodiment, the ARM processor is externally connected with two CAN bus paths as a first communication path, a third switch 3 is arranged on a CAN1 path, a fourth switch 4 is arranged on a CAN2 path, the ARM processor is further externally connected with two ethernet bus paths as a second communication path, a first transceiver 501 is arranged on a main signal path of the ethernet 1, a first transceiver power source 701 is connected to the first transceiver 501 through a first voltage switch 1, a second transceiver 502 is arranged on a main signal path of the ethernet 2, a second transceiver power source 702 is connected to the second transceiver 502 through a second voltage switch 2, and output ports 1 to 4 of the CP L D are respectively connected with the four switches to input switch control signals.
Furthermore, the control board card has a plurality of components, so that the operation generates heat seriously, and the problem of heat generation is also a main reason for causing the control board card not to work normally. In order to improve the working safety of the control board card, the control board card further comprises a temperature sensor, wherein the temperature sensor is positioned at the end of the first processor, is arranged close to the first processor and is used for detecting the temperature of the first processor; the second processor is electrically connected with the temperature sensor and generates a control signal of the switch piece according to the temperature signal of the first processor. When the first processor is detected to have overhigh temperature, the second processor closes the switch on the control communication channel, stops the external communication of the first processor and ensures the over-temperature fault guiding safety of the first processor.
In a specific embodiment, the first power supply is an ARM power supply and is connected with the ARM power supply diagnostic circuit, and the second power supply is a CP L D power supply and is connected with the CP L D power supply diagnostic circuit.
Furthermore, the first processor is further connected to the second power supply and the second diagnostic circuit, and can close the second power supply output when the second diagnostic circuit feeds back a fault signal; the second processor is further coupled to the first power supply and the first diagnostic circuit and is operable to turn off the first power supply output when the first diagnostic circuit feeds back a fault signal. By adopting the structure, the independent power supply, the independent diagnosis and the independent power supply control of the two processors can be realized, and the reliability of the control board card is improved.
The utility model provides a train autopilot system, including foretell integrated circuit board, this integrated circuit board is as train ATO control integrated circuit board. The first path at least comprises two CAN paths and is connected to a train braking system, and the second path at least comprises two Ethernet paths and is connected to a train network control system.
The specific working principle of the control board card applied to the train brake control system will be described below by taking the control board card architecture of the ARM + CP L D processor as an example, and the specific monitoring software flow of CP L D is shown in fig. 2.
If the temperature is abnormal, the CP L D cuts off the link connection between the CAN communication and the Ethernet communication and the train traction braking system and the monitoring system through hard wire instructions, thereby ensuring the safety of the ATO board fault guidance.
If the ARM processor software is abnormal in operation, the CP L D cuts off the link connection between the CAN communication and the Ethernet communication and the train braking system and the monitoring system through hard line instructions, and therefore the fault guiding safety of the ATO board card is guaranteed.
If the CP L D monitors that the power supply of the ARM processor is abnormal, the power supply of the ARM processor is cut off, and an external CAN communication channel and an Ethernet communication channel are cut off simultaneously, so that fault-oriented safety is realized.
Furthermore, in order to facilitate product maintenance and troubleshooting, the monitoring processor CP L D records the failure data monitored by itself and the action reason of the removal command through an external failure storage module, the monitoring processor CP L D is simultaneously monitored by a hardware watchdog circuit, and if the CP L D cannot send out a dog feeding signal within a specified time, the watchdog circuit resets the CP L D.
The utility model provides a control integrated circuit board, stability and reliability are high, will the utility model discloses a control integrated circuit board is used for train automatic driving system, can improve the stability of train automatic driving system and the security of vehicle operation.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A control board card, comprising:
a first processor: the communication output channel is provided with a switch piece capable of controlling the communication output channel to be switched on and off;
a second processor: the second processor may output a control signal to the switching element to control the switching element to be turned on or off.
2. The control board of claim 1, wherein the communication output path comprises a first communication output path and a second communication output path, the first communication output path being interfaced by the first processor and having a switch disposed thereon, the second communication output path further comprising:
main signal path: the first processor interface is connected out, and a transceiver is arranged on the first processor interface;
a transceiver power supply: connected to the transceiver via the power switch.
3. The control board card of claim 1 or 2, wherein the control board card further comprises a temperature sensor at the first processor end for detecting the temperature of the first processor; the second processor is electrically connected with the temperature sensor and generates a control signal of the switch piece according to the temperature signal of the first processor.
4. The control board card of claim 1, wherein the control board card further comprises a first power supply for powering the first processor, and a second power supply for powering the second processor; the first power supply is connected with the first diagnostic circuit, and the second power supply is connected with the second diagnostic circuit.
5. The control board of claim 4, wherein the first processor is further coupled to a second power supply and a second diagnostic circuit, and is configured to turn off the second power supply output when the second diagnostic circuit is feeding back a fault signal; the second processor is further coupled to the first power supply and the first diagnostic circuit and is operable to turn off the first power supply output when the first diagnostic circuit feeds back a fault signal.
6. An automatic train steering system comprising a board as claimed in any one of claims 1 to 5.
7. The automatic train steering system of claim 6, wherein the first communication output path comprises at least two CAN paths connected to a train braking system and the second communication output path comprises at least two Ethernet paths connected to a train network control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007983.2U CN211123760U (en) | 2020-01-02 | 2020-01-02 | Control board card and train automatic driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007983.2U CN211123760U (en) | 2020-01-02 | 2020-01-02 | Control board card and train automatic driving system |
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| CN211123760U true CN211123760U (en) | 2020-07-28 |
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| CN202020007983.2U Active CN211123760U (en) | 2020-01-02 | 2020-01-02 | Control board card and train automatic driving system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051513A (en) * | 2020-09-10 | 2020-12-08 | 中车大连电力牵引研发中心有限公司 | Power strip state detection circuit |
| CN114625558A (en) * | 2022-04-24 | 2022-06-14 | 青岛地铁集团有限公司 | Train automatic driving system and electronic equipment |
-
2020
- 2020-01-02 CN CN202020007983.2U patent/CN211123760U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051513A (en) * | 2020-09-10 | 2020-12-08 | 中车大连电力牵引研发中心有限公司 | Power strip state detection circuit |
| CN112051513B (en) * | 2020-09-10 | 2023-09-19 | 中车大连电力牵引研发中心有限公司 | Power panel state detection circuit |
| CN114625558A (en) * | 2022-04-24 | 2022-06-14 | 青岛地铁集团有限公司 | Train automatic driving system and electronic equipment |
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