Parallel communication system

Abstract

The utility model discloses a parallel communication system, which comprises a first-stage parallel bus, a second-stage parallel bus, a third-stage parallel bus, first-stage electronic equipment, second-stage electronic equipment and third-stage electronic equipment, the plurality of first-stage electronic devices which are connected in parallel are in communication connection through a first-stage parallel bus; a plurality of second-stage electronic devices which are connected in parallel are in communication connection through a second-stage parallel bus; a plurality of third-stage electronic devices connected in parallel are in communication connection through a third-stage parallel bus; the first-level electronic device comprises a first electronic device, the second-level electronic device comprises a second electronic device or a plurality of first-level electronic devices connected in parallel, and the third-level electronic device comprises a third electronic device or a plurality of second-level electronic devices connected in parallel. According to the parallel communication system, the number of the electronic devices connected in parallel is increased and the number of types of the electronic devices connected in parallel is increased by arranging the multi-stage parallel buses, so that the parallel communication system is suitable for a complex parallel system.

Description

TECHNICAL FIELD

[0001] The utility model relates to communication technical field, especially parallel communication system. BACKGROUND

[0002] With the development of new energy technology, due to the higher anti-interference ability, stronger real-time and efficient data transmission capacity of CAN bus, CAN bus is widely used in the scene of parallel communication of multiple electronic devices.

[0003] In the related art, a CAN bus interface is arranged on the electronic device, so that each electronic device connected in parallel is connected in communication through a CAN bus.However, due to the limitation of CAN bus load rate, the number of electronic devices connected in parallel for communication is also limited, in addition, a CAN bus can only be connected in communication with electronic devices of the same model, therefore, the parallel electronic product based on a CAN bus in the related art is not suitable for complex parallel systems. UTILITY MODEL CONTENT

[0004] The utility model provides a parallel communication system to solve the parallel electronic product based on a CAN bus in prior art is not suitable for complex parallel system.

[0005] The utility model provides a parallel communication system, it includes: first stage parallel bus, second stage parallel bus, third stage parallel bus, first stage electronic device, second stage electronic device and third stage electronic device;

[0006] Multiple first stage electronic devices connected in parallel are connected in communication through the first stage parallel bus;

[0007] Multiple second stage electronic devices connected in parallel are connected in communication through the second stage parallel bus;

[0008] Multiple third stage electronic devices connected in parallel are connected in communication through the third stage parallel bus;

[0009] Wherein, the first stage electronic device includes first electronic device, the second stage electronic device includes second electronic device, or multiple first stage electronic devices connected in parallel, the third stage electronic device includes third electronic device, or multiple second stage electronic devices connected in parallel.

[0010] In a possible implementation manner, the first stage electronic device includes a control unit and a first stage parallel interface board;

[0011] The first stage parallel bus is connected in communication with the control unit through the first communication port of the first stage parallel interface board;

[0012] The second-level parallel bus is in communication connection with the control unit through the second communication port of the first-level parallel interface board.

[0013] The third-level parallel bus is in communication connection with the control unit through the third communication port of the first-level parallel interface board.

[0014] In a possible implementation, the plurality of first-level electronic devices connected in parallel are in turn in communication connection with the first communication port of the first-level parallel interface board of each first-level electronic device through the first-level parallel bus.

[0015] In a possible implementation, the second-level electronic device comprises a plurality of first-level electronic devices connected in parallel, and further comprises a second-level parallel interface board.

[0016] The second-level parallel bus is in communication connection with the second communication port of the first-level parallel interface board of each first-level electronic device through the fourth communication port of the second-level parallel interface board.

[0017] The third-level parallel bus is in communication connection with the third communication port of the first-level parallel interface board of each first-level electronic device through the fifth communication port of the second-level parallel interface board.

[0018] In a possible implementation, the plurality of second-level electronic devices connected in parallel are in turn in communication connection with the fourth communication port of the second-level parallel interface board of each second-level electronic device through the second-level parallel bus.

[0019] In a possible implementation, the third-level electronic device comprises a plurality of second-level electronic devices connected in parallel, and further comprises a third-level parallel interface board.

[0020] The third-level parallel bus is in communication connection with the fifth communication port of the second-level parallel interface board of each second-level electronic device through the sixth communication port of the third-level parallel interface board.

[0021] In a possible implementation, the plurality of third-level electronic devices connected in parallel are in turn in communication connection with the sixth communication port of the third-level parallel interface board of each third-level electronic device through the third-level parallel bus.

[0022] In a possible implementation, the first electronic device comprises an inverter or an uninterruptible power supply (UPS) or a power conditioning system (PCS).

[0023] The second electronic device comprises an inverter or a UPS or a PCS.

[0024] The third electronic device comprises an inverter or a UPS or a PCS.

[0025] In a possible implementation, transceiver circuits are arranged at the first communication port, the second communication port and the third communication port of the first level parallel interface board;

[0026] Transceiver circuits are arranged at the fourth communication port and the fifth communication port of the second level parallel interface board;

[0027] A transceiver circuit is arranged at the sixth communication port of the third level parallel interface board.

[0028] In a possible implementation, the first level parallel bus, the second level parallel bus and the third level parallel bus are CAN buses.

[0029] In a possible implementation, the control unit comprises a first core processor, a second core processor and a third core processor;

[0030] The first level parallel bus is in communication connection with the first core processor of the control unit;

[0031] The second level parallel bus is in communication connection with the second core processor of the control unit;

[0032] The third level parallel bus is in communication connection with the third core processor of the control unit.

[0033] The utility model has the advantages of the following:

[0034] The parallel communication system comprises a first level parallel bus, a second level parallel bus, a third level parallel bus, a first level electronic device, a second level electronic device and a third level electronic device; a plurality of parallelly connected first level electronic devices are in communication connection through the first level parallel bus; a plurality of parallelly connected second level electronic devices are in communication connection through the second level parallel bus; a plurality of parallelly connected third level electronic devices are in communication connection through the third level parallel bus; wherein the first level electronic device comprises a first electronic device, the second level electronic device comprises a second electronic device, or a plurality of parallelly connected first level electronic devices, and the third level electronic device comprises a third electronic device, or a plurality of parallelly connected second level electronic devices. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following are only some of the embodiments of the present application, and for the ordinary skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0036] Figure 1 A structure schematic diagram of a parallel communication system provided by the related art is shown in the figure.

[0037] Figure 2 A structure schematic diagram of a parallel communication system provided by the present application is shown in the figure.

[0038] Figure 3 A structure schematic diagram of a first-stage electronic device provided by the present application is shown in the figure.

[0039] Figure 4 A structure schematic diagram of another parallel communication system provided by the present application is shown in the figure.

[0040] Figure 5 A structure schematic diagram of a second-stage electronic device provided by the present application is shown in the figure.

[0041] Figure 6 A structure schematic diagram of another parallel communication system provided by the present application is shown in the figure.

[0042] Figure 7 A structure schematic diagram of a third-stage electronic device provided by the present application is shown in the figure.

[0043] Figure 8 A structure schematic diagram of another parallel communication system provided by the present application is shown in the figure.

[0044] Figure 9 A structure schematic diagram of another parallel communication system provided by the present application is shown in the figure.

[0045] Figure 10 A structure schematic diagram of another parallel communication system provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the present application with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present application.

[0047] It should be noted that the terms "comprising" and "having" and their conjugates, as used in the specification and claims of this application, are intended to encompass the possibilities of not only "including" but also "limited to" the listed steps or elements, unless otherwise indicated.

[0048] The terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or an implied indication of the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise stated, the meaning of "multiple" is two or more.

[0049] The words "example", "in some embodiments", "in other embodiments", etc. used in the following are used to mean example, illustration or description. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is intended to present the concept in a specific way.

[0050] The application scenarios described in the embodiments of the present application are for more clear description of the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that with the appearance of new application scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0051] With the development of new energy technology, in the scenario of parallel communication of multiple electronic devices, due to the high anti-interference ability, strong real-time performance and efficient data transmission ability of CAN bus, CAN bus is widely used in real-time data transmission, so as to ensure better data interaction effect between multiple electronic products connected in parallel through CAN bus.

[0052] In the related art, a CAN bus interface is arranged on an electronic device, so that each electronic device connected in parallel is connected in communication through a CAN bus. As shown in Figure 1 The parallel communication system provided by the related art includes multiple electronic devices 101 connected in parallel. However, due to the limitation of CAN bus load rate, the number of electronic devices connected in parallel for communication is also limited, in addition, a CAN bus can only be connected in communication with electronic devices of the same model, therefore, the parallel electronic product based on a CAN bus in the related art is not suitable for complex parallel systems.

[0053] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0054] To solve the technical problem, the parallel communication system provided by the embodiments of the present application comprises: Figure 2 As shown in the figure, the structure schematic diagram of the parallel communication system provided by the embodiments of the present application comprises: a first-level parallel bus 21, a second-level parallel bus 22, a third-level parallel bus 23, a first-level electronic device 201, a second-level electronic device 202 and a third-level electronic device 203.

[0055] The plurality of parallelly connected first-level electronic devices 201 are connected in communication through the first-level parallel bus 21; the plurality of parallelly connected second-level electronic devices 202 are connected in communication through the second-level parallel bus 22; and the plurality of parallelly connected third-level electronic devices 203 are connected in communication through the third-level parallel bus 23.

[0056] The first-level electronic device 201 comprises a first electronic device, the second-level electronic device 202 comprises a second electronic device, or the plurality of parallelly connected first-level electronic devices 201 comprise a third electronic device, or the plurality of parallelly connected second-level electronic devices 202 comprise a third electronic device.

[0057] The parallel communication system provided by the embodiments of the present application comprises: a first-level parallel bus 21, a second-level parallel bus 22, a third-level parallel bus 23, a first-level electronic device 201, a second-level electronic device 202 and a third-level electronic device 203; the plurality of parallelly connected first-level electronic devices 201 are connected in communication through the first-level parallel bus 21; the plurality of parallelly connected second-level electronic devices 202 are connected in communication through the second-level parallel bus 22; and the plurality of parallelly connected third-level electronic devices 203 are connected in communication through the third-level parallel bus 23; wherein the first-level electronic device 201 comprises a first electronic device, the second-level electronic device 202 comprises a second electronic device, or the plurality of parallelly connected first-level electronic devices 201 comprise a third electronic device, or the plurality of parallelly connected second-level electronic devices 202 comprise a third electronic device. That is, the present application increases the number of parallelly connected electronic devices and the number of model types of parallelly connected electronic devices by setting the multi-level parallel bus, so that the parallel communication system provided by the embodiments of the present application is applicable to a complex parallel system.

[0058] It should be understood that the description in the present application is only detailed for the three-level parallel bus and the three-level electronic device, wherein the three-level parallel bus includes the first-level parallel bus 21, the second-level parallel bus 22 and the third-level parallel bus 23, and the three-level electronic device includes the first-level electronic device 201, the second-level electronic device 202 and the third-level electronic device 203. However, it should be understood by those skilled in the art that the three-level parallel bus and the three-level electronic device shown are intended to represent the parallel communication system architecture of the present application, rather than implying a limitation on the number or type of parallel buses and electronic devices. It should be noted that if additional modules are added to or removed from the parallel communication system shown, the underlying concept of the example embodiments of the present application will not change. Figure 2

[0059] In specific embodiments, the first-level parallel bus 21, the second-level parallel bus 22 and the third-level parallel bus 23 are all CAN buses. It should be noted that the number of CAN buses can be set to meet the needs of the parallel communication system. It should be understood that the present application is only described in detail for the three-level parallel bus, in order to more clearly illustrate the technical solutions of the embodiments of the present application, and does not constitute a limitation on the technical solutions provided by the embodiments of the present application. It is understood by those skilled in the art that, with the evolution of the parallel communication system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems. Specifically, the number of parallel buses can be increased according to the complexity of the parallel system. For example, the parallel communication system of the present application can include the first-level parallel bus 21, the second-level parallel bus 22 and the third-level parallel bus 23, and can also include a fourth-level parallel bus. For another example, the electronic device of the present application can include the first-level electronic device 201, the second-level electronic device 202 and the third-level electronic device 203, and can also include a fourth-level electronic device. That is, the system architecture in the present application can also include a fourth-level parallel bus and a fourth-level electronic device, which will not be described here.

[0060] As an example, as shown in the structure of a first-level electronic device 201 provided by the embodiments of the present application, it includes a control unit 301 and a first-level parallel interface board 302. Figure 3

[0061] The first-level parallel bus 21 is in communication connection with the control unit 301 through the first communication port of the first-level parallel interface board 302; the second-level parallel bus 22 is in communication connection with the control unit 301 through the second communication port of the first-level parallel interface board 302; and the third-level parallel bus 23 is in communication connection with the control unit 301 through the third communication port of the first-level parallel interface board 302.

[0062] ​​The transceiver circuit is configured to receive and send communication information to the first-level electronic device.

[0063] It should be noted that the control unit can be a DSP (Digital Signal Processor) or an ARM (Advanced RISC Machine). In one possible implementation, the control unit includes a first core processor, a second core processor, and a third core processor; the first-level parallel bus is in communication connection with the first core processor of the control unit; the second-level parallel bus is in communication connection with the second core processor of the control unit; and the third-level parallel bus is in communication connection with the third core processor of the control unit.

[0064] In another possible implementation, the control unit includes a first core processor and a second core processor; the first-level parallel bus and the second-level parallel bus are in communication connection with the first core processor of the control unit; and the third-level parallel bus is in communication connection with the second core processor of the control unit. In another possible implementation, the control unit includes a first core processor; and the first-level parallel bus, the second-level parallel bus, and the third-level parallel bus are in communication connection with the first core processor.

[0065] Specifically, the more core processors the control unit includes, the more parallel processing of the multi-level parallel bus can be implemented in the specific implementation, thereby improving the efficiency of data transmission and data processing.

[0066] In specific embodiments, as shown in FIG. 1, a structure schematic diagram of a parallel communication system is provided, and the parallel communication system includes a plurality of first-level electronic devices 201 connected in parallel. Figure 4 The first-level parallel bus 21 is used for communication and data transmission of the first-level electronic device 201.

[0067] The first-level parallel bus 21 is used for communication and data transmission of the first-level electronic device 201.

[0068] As an example, as shown in FIG. 2, a structure schematic diagram of a second-level electronic device 202 is provided, and the second-level electronic device 202 includes a plurality of first-level electronic devices 201 connected in parallel. Figure 5 The second-level parallel bus 22 is used for communication and data transmission of the second-level electronic device 202.

[0069] The second-level parallel bus 22 is in communication connection with the second communication port of the first-level parallel interface board 302 of each first-level electronic device 201 through the fourth communication port of the second-level parallel interface board 501; and the third-level parallel bus 23 is in communication connection with the third communication port of the first-level parallel interface board 302 of each first-level electronic device 201 through the fifth communication port of the second-level parallel interface board 501.

[0070] In the fourth communication port and the fifth communication port of the second-level parallel interface board 501, a transceiver circuit is arranged, which, in specific embodiments, is used for receiving and sending communication information of the second-level electronic device 202.

[0071] In specific embodiments, as shown in Figure 6 Fig. 2 is a structural schematic diagram of another parallel communication system provided by the utility model, in which a plurality of second-level electronic devices 202 connected in parallel are in communication connection with each other through the second-level parallel bus 22.

[0072] The second-level parallel bus 22 is used for communication and data transmission of the second-level electronic device 202.

[0073] As an example, as shown in Figure 7 Fig. 3 is a structural schematic diagram of a third-level electronic device 203 provided by the utility model, the third-level electronic device 203 comprising a plurality of second-level electronic devices 202 connected in parallel, and the third-level electronic device 203 further comprising a third-level parallel interface board 701.

[0074] The third-level parallel bus 23 is in communication connection with the fifth communication port of the second-level parallel interface board of each second-level electronic device through the sixth communication port of the third-level parallel interface board.

[0075] In the sixth communication port of the third-level parallel interface board 701, a transceiver circuit is arranged, which, in specific embodiments, is used for receiving and sending communication information of the third-level electronic device 203.

[0076] In specific embodiments, as shown in Figure 8 Fig. 4 is a structural schematic diagram of another parallel communication system provided by the utility model, in which a plurality of third-level electronic devices 203 connected in parallel are in communication connection with each other through the third-level parallel bus 23.

[0077] The third-level parallel bus 23 is used for communication and data transmission of the third-level electronic device 203. The first-level parallel bus 21, the second-level parallel bus 22 and the third-level parallel bus 23 are independently operated and do not affect each other.

[0078] In addition, in specific embodiments, the control unit 301 is configured to determine a first-level master in the plurality of first-level electronic devices 201 connected in parallel, and to determine a second-level master in the plurality of second-level electronic devices 202 connected in parallel, and to determine a third-level master in the plurality of third-level electronic devices 203 connected in parallel. The first-level master is configured to perform power averaging on the plurality of first-level electronic devices 201 connected in parallel, the second-level master is configured to perform power averaging on the plurality of second-level electronic devices 202 connected in parallel, and the third-level master is configured to perform power averaging on the plurality of third-level electronic devices 203 connected in parallel.

[0079] In the embodiments of the present application, the first electronic device includes but is not limited to an inverter or an uninterruptible power supply (UPS) or a power conditioning system (PCS); the second electronic device includes but is not limited to an inverter or a UPS or a PCS; and the third electronic device includes but is not limited to an inverter or a UPS or a PCS.

[0080] As an example, as shown in FIG. 1, a structure diagram of another parallel communication system provided by the embodiments of the present application is shown. The second electronic device can be a first-level electronic device. Taking two second-level electronic devices connected in parallel as an example, in a possible implementation, if the second-level electronic device 901 is a second electronic device, the second electronic device can be a first-level electronic device, if the second-level electronic device 902 is a plurality of first-level electronic devices connected in parallel, the second-level electronic device 901 and the second-level electronic device 902 are connected in communication through a second-level parallel bus 22. Figure 9 As an example, as shown in FIG. 1, a structure diagram of another parallel communication system provided by the embodiments of the present application is shown. The second electronic device can be a first-level electronic device. Taking two second-level electronic devices connected in parallel as an example, in a possible implementation, if the second-level electronic device 901 is a second electronic device, the second electronic device can be a first-level electronic device, if the second-level electronic device 902 is a plurality of first-level electronic devices connected in parallel, the second-level electronic device 901 and the second-level electronic device 902 are connected in communication through a second-level parallel bus 22.

[0081] Figure 10 As an example, as shown in FIG. 1, a structure diagram of another parallel communication system provided by the embodiments of the present application is shown. The second electronic device can be a first-level electronic device. Taking two second-level electronic devices connected in parallel as an example, in a possible implementation, if the second-level electronic device 901 is a second electronic device, the second electronic device can be a first-level electronic device, if the second-level electronic device 902 is a plurality of first-level electronic devices connected in parallel, the second-level electronic device 901 and the second-level electronic device 902 are connected in communication through a second-level parallel bus 22.

[0082] ​The utility model provides a kind of parallel communication system, comprising: first stage parallel bus, second stage parallel bus, third stage parallel bus, first stage electronic equipment, second stage electronic equipment and third stage electronic equipment;Multiple parallel connection's first stage electronic equipment is connected by first stage parallel bus communication;Multiple parallel connection's second stage electronic equipment is connected by second stage parallel bus communication;Multiple parallel connection's third stage electronic equipment is connected by third stage parallel bus communication;Wherein, first stage electronic equipment includes first electronic equipment, second stage electronic equipment includes second electronic equipment, or multiple parallel connection's first stage electronic equipment, third stage electronic equipment includes third electronic equipment, or multiple parallel connection's second stage electronic equipment.That is, the application is increased by being provided with multistage parallel bus, the quantity of parallel connection's electronic equipment, and the model variety quantity of parallel connection's electronic equipment is increased, while to multistage electronic equipment is classified and parallel processing, improve the efficiency of data processing, so that the parallel communication system provided by the utility model is suitable for complex parallel system.

[0083] Those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model also intends to include these modifications and variations.

Claims

1. A parallel communication system, characterized by Comprise: A first-level parallel bus, a second-level parallel bus, a third-level parallel bus, a first-level electronic device, a second-level electronic device and a third-level electronic device; A plurality of first-level electronic devices connected in parallel are connected in communication through the first-level parallel bus; A plurality of second-level electronic devices connected in parallel are connected in communication through the second-level parallel bus; A plurality of third-level electronic devices connected in parallel are connected in communication through the third-level parallel bus; Wherein, the first-level electronic device comprises a first electronic device, the second-level electronic device comprises a second electronic device, or a plurality of first-level electronic devices connected in parallel, and the third-level electronic device comprises a third electronic device, or a plurality of second-level electronic devices connected in parallel.

2. The parallel communication system of claim 1, wherein, The first-level electronic device comprises a control unit and a first-level parallel interface board; The first-level parallel bus is connected in communication with the control unit through a first communication port of the first-level parallel interface board; The second-level parallel bus is connected in communication with the control unit through a second communication port of the first-level parallel interface board; The third-level parallel bus is connected in communication with the control unit through a third communication port of the first-level parallel interface board.

3. The parallel communication system of claim 2, wherein, A plurality of first-level electronic devices connected in parallel are connected in communication through the first-level parallel bus, and each first-level electronic device is connected in communication through a first communication port of a first-level parallel interface board of the first-level electronic device.

4. The parallel communication system of claim 2, wherein, The second-level electronic device comprises a plurality of first-level electronic devices connected in parallel, and the second-level electronic device further comprises a second-level parallel interface board; The second-level parallel bus is connected in communication with the first-level parallel interface board of each first-level electronic device through a fourth communication port of the second-level parallel interface board; The third-level parallel bus is connected in communication with the first-level parallel interface board of each first-level electronic device through a fifth communication port of the second-level parallel interface board.

5. The parallel communication system of claim 4, wherein, A plurality of second-level electronic devices connected in parallel are connected in communication through the second-level parallel bus, and each second-level electronic device is connected in communication through a fourth communication port of a second-level parallel interface board of the second-level electronic device.

6. The parallel communication system of claim 4, wherein, The third-level electronic device comprises a plurality of second-level electronic devices connected in parallel, and the third-level electronic device further comprises a third-level parallel interface board; The third-level parallel bus is connected in communication with the second-level parallel interface board of each second-level electronic device through a sixth communication port of the third-level parallel interface board.

7. The parallel communication system of claim 6, wherein, A plurality of third-level electronic devices connected in parallel are connected in communication through the third-level parallel bus, and each third-level electronic device is connected in communication through a sixth communication port of a third-level parallel interface board of the third-level electronic device.

8. The parallel communication system of claim 1, wherein, The first electronic device comprises an inverter or an uninterruptible power supply (UPS) or a power conditioning system (PCS); The second electronic device comprises an inverter or a UPS or a PCS; The third electronic device comprises an inverter or a UPS or a PCS.

9. The parallel communication system of claim 6, wherein, Transceiver circuits are arranged at the first communication port, the second communication port and the third communication port of the first-level parallel interface board; Transceiver circuits are arranged at the fourth communication port and the fifth communication port of the second-level parallel interface board; A transceiver circuit is arranged at a sixth communication port of the third level parallel interface board.

10. The parallel communication system according to any one of claims 1 to 9, wherein The first level parallel bus, the second level parallel bus and the third level parallel bus are CAN buses.

11. The parallel communication system of claim 2, wherein, The control unit comprises a first core processor, a second core processor and a third core processor. The first level parallel bus is in communication connection with the first core processor of the control unit. The second level parallel bus is in communication connection with the second core processor of the control unit. The third level parallel bus is in communication connection with the third core processor of the control unit.

Images