Re-connectable light-rail vehicle network system and network total system based on field bus

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the present invention. Invented some embodiments, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] figure 1 It is a schematic structural diagram of a reconnectable light rail vehicle network system based on a field bus provided by an embodiment of the present invention. The present invention provides a reconnectable light rail vehicle network system based on a field bus, which includes a reconnect gateway 1 and a vehicle control unit 2 And multiple functional module units. The reconnection gateway 1 is used to connect to the reconnection gateway 1 of other vehicle network systems through the field bus, and exchange the vehicle status information carried in the data packet based on the field bus transmission protocol; the vehicle control unit 2 is used to communicate the various functions of the vehicle The module unit sends control instructions, and sends control instructions to other vehicles through the reconnection gateway 1, and receives vehicle status data reported by the functional module unit, and supplies the control instructions and/or status data as the vehicle status information of the vehicle to the reconnection gateway 1; Multiple functional module units are connected to the vehicle control unit 2 for receiving control instructions issued by the vehicle control unit 2 and sending status data to the vehicle control unit 2.

[0033] In practical applications, the reconnection gateways 1 of multiple vehicles can be connected to each other through the CAN Powerline bus to exchange the vehicle status information carried in the data packet; the reconnection gateway 1 of each vehicle can communicate with the local network through the CANOPEN bus. The vehicle control unit 2 of the vehicle is connected, and each functional module unit is also connected to the vehicle control unit 2 of the vehicle through the CANOPEN bus. When the passenger flow is small, a single train operation method can be adopted; when the passenger flow is large, the train adopts heavy Multiple reconnected vehicles exchange vehicle status information through multiple reconnecting gateways 1. For example, if a vehicle fails, the fault information is reported to the vehicle control unit 2 of the vehicle through the corresponding functional module, and the vehicle control The unit 2 issues control instructions to the vehicle based on the fault information, such as an emergency braking instruction; at the same time, the vehicle control unit 2 provides the above control instructions and fault information to the reconnection gateway 1 of the vehicle and sends it to other vehicles through the reconnection gateway 1. A control command for emergency braking is issued, and other vehicles operating in reconnection with the vehicle will perform corresponding braking actions according to the control command. Compared with the prior art application of hard-wire control, the above-mentioned information interaction and transmission process simplifies wiring, realizes networked control, has a fast response speed and fewer failure points.

[0034] On the basis of the foregoing embodiment, the reconnection gateway 1 may include a state collection unit, a data packet generation unit, a data packet transmission unit, and a state information receiving unit. The state information collection unit is used to collect the vehicle from the vehicle control unit 2. The data packet generation unit is used to add the status information to the data packet based on the fieldbus transmission protocol, and set the address of the reconnection gateway 1 of other network systems as the destination address in the data packet; the data packet sending unit is used The formed data packet is sent through the field bus; the status information receiving unit is used to receive the data packet from the field bus.

[0035] Preferably, the above-mentioned network system further includes an intelligent display unit 9, which can be connected to the vehicle control unit 2 via an RS232 bus, and is used to receive control instructions issued by the vehicle control unit 2 and display vehicle status information.

[0036] Further, the above-mentioned multiple functional module units may include a traction control unit 3, an auxiliary control unit 4, an air conditioning control unit 5, a passenger information system 7, an event recording unit 8, a door control unit 6, a brake control unit 10 and/or a remote control unit. Input and output module 11.

[0037] Among them, the traction control unit 3 communicates with the vehicle control unit 2 through the field bus to complete the control function of the vehicle traction converter, and specifically realize the functions of traction, resistance braking, regenerative braking, and idling coasting protection; the auxiliary control unit 4 completes the assistance The control function of the converter specifically realizes functions such as voltage output and charger control; the air conditioning control unit 5 performs the functions of cooling, heating and ventilation of the air conditioner; the passenger information system 7 completes vehicle broadcasting, station announcement, video collection, and dynamic map Control, LED display outside the vehicle and other functions; the event recording unit 8 completes the recording function of vehicle operating data and fault data, and can analyze the data through the upper computer analysis software to find the cause of the fault; the door control unit 6 completes the opening, Shutdown and anti-pinch functions; brake control unit 10 completes the vehicle's maintenance braking, parking braking, parking braking and mitigation functions; remote input and output module 11 is responsible for the collection and command output of the cab and other hard-wired data of the vehicle .

[0038] According to the configuration of the corresponding hardware, the numbers of the aforementioned traction control unit 3, auxiliary control unit 4, air conditioning control unit 5, and door control unit 6 are set to two accordingly.

[0039] The reconnectable light rail vehicle network system based on the fieldbus provided by the embodiment of the present invention realizes the synchronization control of multiple train reconnection operations by setting reconnection gateways and using the information interaction between the reconnection gateways, which is aimed at tidal passenger flow. Features: Choose the marshalling form of the train, change the passenger capacity of the vehicle, and be flexible.

[0040] The embodiment of the present invention also provides a fieldbus-based light rail vehicle network total system, which includes one or more fieldbus-based reconnectable light rail vehicle network systems provided in any embodiment of the present invention. The weight of each network system is The gateways are connected by fieldbus.

[0041] Preferably, the reconnection gateway is connected to the reconnection gateways of other network systems through the CAN-Powerline bus to exchange respective vehicle status information.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions recorded in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.