A tramway on-board control system

Abstract

The application discloses a tramcar-mounted control system, a first car-mounted control host, a first communication unit and a first GPS antenna installed on a roof; the first car-mounted control host is connected with the first communication unit through a cable, and the first car-mounted control host is connected with the first GPS antenna through a first GPS feeder cable. The tramcar-mounted control system can reduce the economic cost of track construction of a tramcar.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tram operation control, in particular to a tram on-board control system. BACKGROUND

[0002] Modern tram is a new type of rail transit form running on a special track on the ground, which is generally parallel to the road, located in the center or on both sides, and has road right overlapping with ordinary roads at crossroads. The tram vehicle is generally not more than five sections, which is driven by electric power, has slow running speed, and is manually driven by a driver. The tram operation control system is different from the conventional subway control system in composition. In addition to the conventional turnout safety protection, it also needs to perform intersection protection at the intersection to prevent running conflicts with social vehicles. The existing tram operation control system adopts the full-line design shaft mode to obtain the occupation information of the section, and then obtains the vehicle position and completes the calculation of vehicle movement authorization. The existing full-line design shaft mode needs to consume a large economic cost. SUMMARY

[0003] The embodiment of the present application provides a tram on-board control system, which can reduce the economic cost of tram track construction.

[0004] An embodiment of the present application provides a tram on-board control system, which comprises:

[0005] A first on-board control host, a first communication unit and a first GPS antenna installed on the roof of the vehicle; the first on-board control host and the first communication unit are connected through a cable, and the first on-board control host and the first GPS antenna are connected through a first GPS feeder cable.

[0006] Further comprising:

[0007] A second on-board control host, a second communication unit and a second GPS antenna installed on the roof of the vehicle; the second on-board control host and the second communication unit are connected through a cable, and the second on-board control host and the second GPS antenna are connected through a second GPS feeder cable.

[0008] Further comprising:

[0009] A CAN bridge cable for connecting the first on-board control host and the second on-board control host, an Ethernet bridge cable for connecting the first communication unit and the second on-board control host, and an Ethernet bridge cable for connecting the second communication unit and the first on-board control host.

[0010] Further comprising:

[0011] The first communication positioning module is connected with the first vehicle control host through a first communication positioning cable, and the second communication positioning module is connected with the second vehicle control host through a second communication positioning cable.

[0012] Further, it further comprises:

[0013] The first display is connected with the first vehicle control host through a first display cable, and the second display is connected with the second vehicle control host through a second display cable.

[0014] Further, the first vehicle control host comprises an RS485 interface connected with one end of a TMS cable, and the other end of the TMS cable is connected with a vehicle TMS arranged in each compartment of the tram;

[0015] The first vehicle control host is connected with a power supply device through a power supply cable;

[0016] The first vehicle control host is connected with a vehicle terminal through an IO acquisition cable;

[0017] The first vehicle control host is connected with a vehicle terminal through a speed sensor cable.

[0018] Further, the second vehicle control host comprises an RS485 interface connected with one end of a TMS cable, and the other end of the TMS cable is connected with a vehicle TMS arranged in each compartment of the tram;

[0019] The second vehicle control host is connected with a power supply device through a power supply cable;

[0020] The second vehicle control host is connected with a vehicle terminal through an IO acquisition cable;

[0021] The second vehicle control host is connected with a vehicle terminal through a speed sensor cable.

[0022] Further, it further comprises:

[0023] The first speed sensor and the second speed sensor are respectively installed on two axle boxes on two sides of the vehicle.

[0024] By implementing the present application, the following beneficial effects are achieved:

[0025] The present application provides a tram on-board controller, which comprises a first on-board control host, a first communication unit, and a first GPS antenna installed on the roof of the tram, wherein the first on-board control host is connected with the first communication unit through a cable, and the first on-board control host is connected with the first GPS antenna through a first GPS feeder cable. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of a tram on-board control system according to an embodiment of the present application.

[0027] Figure 2 is a structural schematic diagram of a tram on-board control system according to another embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] As shown in Figure 1 , the present application provides a tram on-board control system, which comprises a first on-board control host, a first communication unit, and a first GPS antenna installed on the roof of the tram, wherein the first on-board control host is connected with the first communication unit through a cable, and the first on-board control host is connected with the first GPS antenna through a first GPS feeder cable.

[0030] Specifically, the first communication unit can complete communication with a turnout controller, an intersection controller, and a tram dispatching center, and the first communication unit provides an Ethernet port for the first on-board control host. The first on-board control host is connected with the first communication unit through an Ethernet cable, the first GPS antenna is installed on the roof of the tram, and is used to acquire the current position information of the tram. The first on-board control host contains a GPS / BD receiving module, the first GPS antenna is connected with the first on-board control host through the first GPS feeder cable, and transmits the position information acquired by the first GPS antenna to the first on-board control host. The first on-board control host can complete current position calculation of the tram according to the acquired position information.

[0031] As Figure 2 shown, in a preferred embodiment, further comprising: a second vehicle-mounted control host, a second communication unit and a second GPS antenna installed on the roof of the tram; the second vehicle-mounted control host is connected with the second communication unit through a cable, and the second vehicle-mounted control host is connected with the second GPS antenna through a second GPS feeder cable.

[0032] Specifically, a preferred embodiment of the present application provides a tram vehicle-mounted control system, which adopts head-tail redundancy design, and a set of main control equipment is arranged at the head and tail of the tram respectively, and can operate simultaneously to realize double-end redundancy of the tram; the second communication unit can complete communication with the turnout controller, the intersection controller and the tram dispatching center, the second communication unit provides an Ethernet port for the second vehicle-mounted control host, the second vehicle-mounted control host is connected with the second communication unit through an Ethernet cable; the second GPS antenna is installed on the roof of the tram, and is used to obtain the current position information of the tram; the second vehicle-mounted control host contains a GPS / BD receiving module, the second GPS antenna is connected with the second vehicle-mounted control host through a second GPS feeder cable, and transmits the position information obtained by the second GPS antenna to the second vehicle-mounted control host, which can complete current position calculation of the tram according to the obtained position information.

[0033] In a preferred embodiment, further comprising: a CAN bridge cable for connecting the first vehicle-mounted control host and the second vehicle-mounted control host, an Ethernet bridge cable for connecting the first communication unit and the second vehicle-mounted control host, and an Ethernet bridge cable for connecting the second communication unit and the first vehicle-mounted control host.

[0034] Specifically, the first communication unit is connected with the second vehicle-mounted control host through an Ethernet bridge cable, communication between the first communication unit and the second vehicle-mounted control host is realized, the second communication unit is connected with the first vehicle-mounted control host through an Ethernet bridge cable, communication between the second communication unit and the first vehicle-mounted control host is realized, that is, the first communication unit (A network) communicates with the A network of the second vehicle-mounted host through an Ethernet bridge cable, the second communication unit (B network) communicates with the B network of the first vehicle-mounted host through an Ethernet bridge cable, that is, the A network and the B network of the head and tail vehicle-mounted control hosts are realized to be redundant; operation data synchronization between the first vehicle-mounted control host and the second vehicle-mounted control host is realized, that is, the first vehicle-mounted control host and the second vehicle-mounted control host mutually synchronize operation data; the first vehicle-mounted control host and the second vehicle-mounted control host are connected through a CAN bridge cable, device and information redundancy between the first vehicle-mounted control host and the second vehicle-mounted control host is realized; the first vehicle-mounted control host and the second vehicle-mounted control host realize communication, and meanwhile, position information obtained by the first GPS antenna and position information obtained by the second GPS antenna are shared, cross redundancy is realized; in a normal case, one end of the driver's cabin where the tram driver is located is the active end, and the vehicle-mounted control host at the other end is the non-active end, the non-active end can only complete relevant logical operation, and cannot issue effective control commands to other subsystems; when the active end fails, the non-active end is automatically switched to the active end, so that the tram is ensured to operate normally.

[0035] It should be noted that, in a normal case, the Ethernet bridge cable adopts a 2*4 core cable, and the CAN bridge cable adopts a 2*3 core cable.

[0036] In a preferred embodiment, it further comprises: a first communication positioning module and a second communication positioning module, the first communication positioning module is connected with the first vehicle-mounted control host through a first communication positioning cable, and the second communication positioning module is connected with the second vehicle-mounted control host through a second communication positioning cable.

[0037] Specifically, the first communication positioning module and the second communication positioning module are respectively installed on the inner side of the front glass of the driver's stand at the two ends of the tram; the first communication positioning module and the second communication positioning module serve as auxiliary communication units of the tram vehicle-mounted control system, and are used to provide a backup communication channel for the tram and the ground when the LTE network is interrupted or lost.

[0038] In a preferred embodiment, it further comprises: a first display and a second display, the first display is connected with the first vehicle-mounted control host through a first display cable, and the second display is connected with the second vehicle-mounted control host through a second display cable.

[0039] Specifically, the first display and the second display are respectively installed on the driver's cab at the two ends of the tram, the first display is connected with the first vehicle control host through the first display cable, and the second display is connected with the second vehicle control host through the second display cable, so that the information of the first vehicle control host is displayed on the first display, and the information of the second vehicle control host is displayed on the second display, thereby providing effective driving information for the driver when driving the tram.

[0040] It should be noted that operation buttons are installed on the driver's cab at the two ends of the tram, which are used for inputting relevant operation functions, and each end usually contains four self-resetting buttons with lights, one button is a cancel function using a green prompt light, one button is a confirmation function using a yellow prompt light, and two buttons are functional buttons using yellow prompt lights.

[0041] In a preferred embodiment, the first vehicle control host contains an RS485 interface, one end of the RS485 interface is connected with a TMS cable, and the other end of the TMS cable is connected with a vehicle TMS arranged in each car of the tram; the first vehicle control host is connected with a power supply device through a power supply cable; the first vehicle control host is connected with a vehicle terminal through an IO acquisition cable; and the first vehicle control host is connected with the vehicle terminal through a speed sensor cable.

[0042] Specifically, the first vehicle control host provides two RS485 interfaces connected with the vehicle TMS arranged in each car of the tram, which is used to obtain the vehicle state information of the tram; the first vehicle control host is connected with the power supply device through the power supply cable to obtain power supply; and the first vehicle control host is connected with the vehicle terminal through the speed sensor cable, which is used to obtain the running distance and speed information of the vehicle.

[0043] In a preferred embodiment, the second vehicle control host contains an RS485 interface, one end of the RS485 interface is connected with a TMS cable, and the other end of the TMS cable is connected with a vehicle TMS arranged in each car of the tram; the second vehicle control host is connected with a power supply device through a power supply cable; the second vehicle control host is connected with a vehicle terminal through an IO acquisition cable; and the second vehicle control host is connected with the vehicle terminal through a speed sensor cable.

[0044] Specifically, the second vehicle control host provides two RS485 interfaces connected with the vehicle TMS arranged in each car of the tram, which is used to obtain the vehicle state information of the tram; the second vehicle control host is connected with the power supply device through the power supply cable to obtain power supply; and the second vehicle control host is connected with the vehicle terminal through the speed sensor cable, which is used to obtain the running distance and speed information of the vehicle.

[0045] In a preferred embodiment, further comprising: a first speed sensor and a second speed sensor, the first speed sensor and the second speed sensor are respectively installed on the two axle boxes on both sides of the vehicle;

[0046] Specifically, the first speed sensor and the second speed sensor are respectively installed on the two axle boxes on both sides of the vehicle, for obtaining the walking distance and speed information of the vehicle, the first speed sensor and the second speed sensor transmit the obtained information to the vehicle terminal, and the vehicle terminal transmits the information to the corresponding vehicle-mounted control host through the speed sensor cable, so that the corresponding vehicle-mounted control host completes the tram speed information calculation;

[0047] It should be noted that, in the positioning algorithm, the GPS positioning information received by the GPS / BD receiving module and the data obtained by the speed sensor are respectively used for different operation purposes; the GPS positioning information received by the GPS / BD receiving module is used to determine the initial position of the vehicle and the direction of the tram body, and the data obtained by the speed sensor is used to provide the effective walking distance and speed information of the tram; when the vehicle-mounted control host determines that the position deviation of the vehicle exceeds a certain range according to the position calibration information provided by the GPS / BD, the vehicle-mounted control host corrects the real-time position; therefore, even if both speed sensors at both ends of the tram are completely disabled, the vehicle position can still be tracked; in the case of implementing the embodiment of the present application, double-mode operation can be realized by arranging the axle only in the turnout area, fixed block is realized in the turnout area to ensure the safety of tram operation, and mobile block is realized in the long non-interlocked control area to improve the operation efficiency.

[0048] The above-mentioned embodiments of the present application have the following beneficial effects:

[0049] 1. The position information of the tram is obtained by using the GPS positioning method, which can cancel the axle arrangement in the whole section of the tram track, and only the axle arrangement in the turnout area is needed to determine whether the turnout area is occupied by the vehicle, which can reduce the economic cost of the construction of the tram track;

[0050] 2. The head-tail redundant structure is adopted, which can reduce the complexity of the structure of the vehicle-mounted control system of the tram, simplify the equipment configuration, and also enhance the robustness and practicality of the system;

[0051] 3. The auxiliary communication unit, i.e. the first communication positioning module and the second communication positioning module, can enable the standby auxiliary communication unit when the tram loses the LET network, so as to ensure the normal work of the communication link.

[0052] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, can also make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.

Claims

1. A tramway on-board control system, characterized in that, Comprise: The first vehicle-mounted control host, the first communication unit and the first GPS antenna installed on the roof of the vehicle; the second vehicle-mounted control host, the second communication unit and the second GPS antenna installed on the roof of the vehicle; the CAN bridge cable for connecting the first vehicle-mounted control host and the second vehicle-mounted control host, the Ethernet bridge cable for connecting the first communication unit and the second vehicle-mounted control host, and the Ethernet bridge cable for connecting the second communication unit and the first vehicle-mounted control host; The first vehicle-mounted control host and the first communication unit are connected by a cable, and the first vehicle-mounted control host and the first GPS antenna are connected by a first GPS feeder cable; the second vehicle-mounted control host and the second communication unit are connected by a cable, and the second vehicle-mounted control host and the second GPS antenna are connected by a second GPS feeder cable.

2. A tramcar on-board control system as claimed in claim 1, characterised in that Also include: The first communication positioning module and the second communication positioning module, the first communication positioning module is connected with the first vehicle-mounted control host through the first communication positioning cable, and the second communication positioning module is connected with the second vehicle-mounted control host through the second communication positioning cable.

3. A tramcar on-board control system as claimed in claim 1, characterised in that Also include: The first display and the second display, the first display is connected with the first vehicle-mounted control host through the first display cable, and the second display is connected with the second vehicle-mounted control host through the second display cable.

4. A tramcar on-board control system as claimed in claim 1, characterised in that The first vehicle-mounted control host contains RS485 interface, one end of the RS485 interface is connected with TMS cable, and the other end of the TMS cable is connected with vehicle TMS arranged in each compartment of the tram; The first vehicle-mounted control host is connected with power supply equipment through power supply cable; The first vehicle-mounted control host is connected with vehicle terminal through IO acquisition cable; The first vehicle-mounted control host is connected with vehicle terminal through speed sensor cable.

5. A tramcar on-board control system as claimed in claim 1, characterised in that The second vehicle-mounted control host contains RS485 interface, one end of the RS485 interface is connected with TMS cable, and the other end of the TMS cable is connected with vehicle TMS arranged in each compartment of the tram; The second vehicle-mounted control host is connected with power supply equipment through power supply cable; The second vehicle-mounted control host is connected with vehicle terminal through IO acquisition cable; The second vehicle-mounted control host is connected with vehicle terminal through speed sensor cable.

6. A tramcar control system according to any one of claims 4 or 5, wherein the control system is arranged to control the operation of the tramcar by means of a plurality of control units, each control unit being arranged to control the operation of a respective tramcar. Also include: The first speed sensor and the second speed sensor are respectively installed on the two axle boxes on both sides of the vehicle.

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