CN114338262B - Energy cabin communication methods, systems and electronic equipment - Google Patents

Abstract

The application provides an energy cabin communication method, an energy cabin communication system and electronic equipment, wherein the method comprises the following steps: the communication bus module receives source communication protocol data sent by a source external connection system; extracting application data from source communication protocol data, and forming a general message according to a custom protocol; embedding the general message into a data segment of target communication protocol data, and forwarding the general message to a target external connection system; the universal message comprises the application data, a start symbol and an end symbol, wherein the start symbol is used for the target external connection system to start reading the universal message, and the end symbol is used for the target external connection system to stop reading the universal message. The energy cabin communication method, the system and the electronic equipment can be flexibly connected into an external connection system, shield communication differentiation of the bottom layer, realize interconnection and intercommunication among different communication protocols, improve the working efficiency of the energy cabin and reduce the operation and maintenance difficulty and cost.

Description

Energy cabin communication methods, systems and electronic equipment

Technical field

This application relates to the field of energy cabin communication technology, and in particular to an energy cabin communication method, system and electronic equipment.

Background technique

The energy cabin is a lightweight combined energy supply equipment for the park's various energy needs such as cooling, heating, electricity, and gas. The control center in the energy cabin can centrally control different energy cabin subsystems to improve work efficiency. Currently, The energy cabin subsystem and the control center are independently connected point-to-point. The communication interface forms of various energy cabin subsystems are different, and the communication protocols are also different. It is difficult for the control center to support all communication methods. System access requires development and debugging. Different communications The protocols need to be mapped to each other, making operation and maintenance difficult; in addition, this point-to-point connection mode cannot achieve cross-network integration between energy cabin subsystems, restricting the flow of energy cabin information.

Contents of the invention

In view of this, the purpose of this application is to propose an energy cabin communication method, system and electronic equipment to solve the above technical problems.

The first aspect of this application provides an energy cabin communication method, which is applied to an energy cabin communication system. The energy cabin communication system includes: a communication bus module and multiple external connection systems connected in parallel to the communication bus module; The energy cabin communication method includes: the communication bus module receives source communication protocol data sent by the source external connection system; extracts application data from the source communication protocol data and forms a universal message according to a custom protocol; and embeds the universal message into the data segment of the target communication protocol data and forwarded to the target external connection system; wherein the general message includes the application data, a start symbol and an end symbol, and the start symbol is used for the target external connection The system starts to read the general message, and the terminator is used for the target external connection system to stop reading the general message.

Further, the length of the data segment embedded in the general message is less than the maximum limit length.

Further, the general message also includes a length field, a control field, a source address and a destination address. The control field is used to identify the type of the source communication protocol. The length field is used to count the length of the application data. .

Further, the energy cabin communication method also includes: dynamically establishing a routing table according to the address of each external connection system.

Further, the external connection system includes a control center, and the routing table is stored in the control center.

Further, the energy cabin communication method also includes: describing the external connection system and establishing a corresponding virtual digital model.

A second aspect of the application provides an energy cabin communication system, including a communication bus module and multiple external connection systems connected in parallel to the communication bus module; wherein the communication bus module is configured to receive signals from the external connection system. source communication protocol data; extract application data from the source communication protocol data, form a universal message according to the custom protocol; embed the universal message into the data segment of the target communication protocol data, and forward it to the target external connection system; Wherein, the general message includes the application data, a start character and an end character, the start character is used for the target external connection system to start reading the general message, and the end character is used for the The target external connection system stops reading the universal message; the external connection system is configured to send the source communication protocol data and receive the target communication protocol data embedded in the universal message.

Further, the external connection system includes a first energy cabin subsystem and a control center. The first energy cabin subsystem includes a grid-connected and off-grid control system, a wind power generation control system, a photovoltaic power generation control system, and a vehicle charge and discharge control system. Energy storage control system, main load control system, cold and heat storage control system and environmental detection control system.

Further, the communication bus module is provided with a communication interface, and the communication interface includes an RS485 interface, a CAN interface and an Ethernet interface.

A third aspect of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that when the processor executes the program, the above is implemented The method described in the first aspect.

As can be seen from the above, this application provides an energy cabin communication method, system and electronic equipment. By uniformly connecting different external connection systems to the communication bus module, the communication bus module forwards data, breaking the traditional single communication method. Realize centralized communication of the system; by extracting the source communication protocol data, a universal message is formed according to the custom protocol. The application data in the universal message can be directly used by different external connection systems without the need for conversion between communication protocols, breaking the Information transmission barriers between different communication protocols; the energy cabin communication method, system and electronic equipment can be flexibly connected to the external connection system, shield the underlying communication differentiation, realize interconnection and interoperability between different communication protocols, improve the energy cabin work efficiency, and reduce Difficulty and cost of operation and maintenance.

Description of the drawings

In order to more clearly illustrate the technical solutions in this application or related technologies, the drawings needed to be used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings in the following description are only for the purposes of this application. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic flow chart of an energy cabin communication method according to an embodiment of the present application;

Figure 2 is a schematic structural diagram of an energy cabin communication system according to an embodiment of the present application;

Figure 3 is a schematic structural diagram of another energy cabin communication system according to the embodiment of the present application;

Figure 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of this application should have the usual meanings understood by those with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprising" mean that the elements or things appearing before the word include the elements or things listed after the word and their equivalents, without excluding other elements or things. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to express relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

The energy cabin is a lightweight combined energy supply equipment for the park's various energy needs such as cooling, heating, electricity, and gas. It is mainly composed of an outdoor distributed power generation system, an electric vehicle charging and discharging system, an energy storage system, and a power transformation and distribution system. It is composed of the main equipment of the system and other subsystems and the management and control parts of the corresponding subsystems in the cabin. In addition, the energy cabin also supports built-in energy storage, heat storage, electric refrigeration/heating, small gas generators and other equipment, which can realize flexible interconnection and complementation of multiple energy sources. With intelligent control, it is a representative combination energy supply equipment for flexible supply and efficient utilization of regional comprehensive energy.

The control center in the energy cabin can centrally control different energy cabin subsystems to improve work efficiency. Various existing energy cabin subsystems generally adopt independent designs, and communicate with the control center in a point-to-point manner. This radial interconnection structure Although communication methods are easy to manage, the current communication methods used by different energy cabin subsystems are not unified, and it is difficult for the control center to support all communication methods. As a result, the control center needs to design multiple communication interfaces, and access is also accompanied by a lot of debugging work. Different Communication protocols need to be mapped to each other, which makes operation and maintenance costly and difficult.

For example, small park integrated energy mainly uses RS485 lines or Ethernet for inter-system information communication. However, RS485 lines and Ethernet cannot meet the information interaction of all distributed energy systems, such as the CAN bus communication used by automobile charging and discharging systems.

In addition, various types of energy belong to different energy cabin subsystems. It is difficult to realize data interconnection on the network side. The communication methods between various subsystems are not unified and the communication protocols are not standardized. As a result, data between various subsystems cannot be shared and cannot be shared. Achieving cross-network integration between various energy cabin subsystems restricts the flow of energy cabin information.

In the process of implementing this application, it was found that bus topology can be considered to integrate multiple communication methods, and each energy cabin subsystem adaptive communication interface centralized communication. There is no standardization of communication protocols for different communication protocols to extract common messages. To solve the problem, open up the link layer to achieve parallel communication.

Below, the technical solution of the present application will be described in detail through specific embodiments and in conjunction with Figures 1-4.

Some embodiments of the present application provide an energy cabin communication method, as shown in Figure 1, applied to an energy cabin communication system. The energy cabin communication system includes: a communication bus module and multiple devices connected in parallel to the communication bus module. An external connection system; the energy cabin communication method includes the following steps:

S1. The communication bus module receives the source communication protocol data sent by the source external connection system.

The external connection system includes the control center of the energy cabin and the first energy cabin subsystem. The source external connection system sends data information and forwards it to the target external connection system through the communication bus module. For example, the first energy cabin subsystem transmits data information to the control center. , the control center transmits data information to the first energy cabin subsystem or transmits data information between the first energy cabin subsystems.

S2. Extract application data from the source communication protocol data and form a general message according to the custom protocol.

For different external connection systems, the communication protocols may be different. Valid information can be extracted from the source communication protocol data. The valid information is the application data, and then the application data is formed according to the custom protocol to form a universal system that can be identified and utilized by different communication protocols. Messages ensure parallel communication between different communication protocols by forming universal messages.

The custom protocol is a preset format, and the structure is shown in Table 1. The formed universal message includes a start symbol, length field, control field, source address, destination address, application data and terminator.

Table 1 Customized protocol structure table

The length of the start character is 1 byte, and the default setting is 01010101. The start character is used by the target external system to start reading general messages.

The length field is 2 bytes and is used to count the length of application data.

Application data is the valid information that needs to be transmitted in the source communication protocol data, and the length is variable.

The length of the terminator is 1 byte, and the default setting is 10101011. The terminator is used by the target external connection system to stop reading general messages.

The control field is used to identify the type of the source communication protocol. The length is 2 bytes. The structure of the control field is shown in Table 2.

Table 2 Control domain structure table

In some embodiments, the general message may also include additional information used to identify the application data transfer process. The structure of the additional information is shown in Table 3.

Table 3 Attachment information structure table

S3. Embed the general message into the data segment of the target communication protocol data, and forward it to the target external connection system.

Embedding the universal message into the target communication protocol data will not cause damage to the underlying target communication protocol. The target communication protocol data is forwarded to the target external connection system as an outer package universal message and can be received by the target external connection system.

The length of the data segment embedded in the general message is less than the maximum limit length of the data segment to avoid data transmission failure.

After the target external connection system recognizes the start character and reads the universal message, the application data in the universal message can be directly used without the need for conversion of communication protocols to complete data transfer between different external connection systems.

This energy cabin communication method breaks the traditional single communication method by uniformly connecting different external systems to the communication bus module, and the communication bus module forwards data, breaking the traditional single communication method and realizing centralized communication of the system; by extracting the source communication protocol data, it is formed according to the custom protocol Universal messages. The transmission information in universal messages can be directly used by different external systems without the need for conversion between communication protocols, breaking the information transmission barriers between different communication protocols; because the underlying communication protocols and interfaces are very different, through This energy cabin communication method can shield the differentiation of underlying communications. The external system connection communication bus module can be plug-and-play, more flexible, and does not require debugging and protocol conversion. It realizes interconnection and interoperability between different communication protocols and improves efficiency. The energy cabin works more efficiently and reduces the difficulty and cost of operation and maintenance.

S4. Dynamically establish a routing table according to the address of each externally connected system.

The routing table is stored in the control center. By comparing the routing table with the source address in the general protocol, the source of the application data can be clarified. Because the connection location between the external system and the communication bus module is not fixed, routing needs to be established dynamically. table, and the first energy cabin subsystem can read the routing table of the control center and obtain the addresses of other external systems.

In some embodiments, the energy cabin communication system also includes a second energy cabin subsystem that is wirelessly connected to the control center. The wireless connection method includes Wi-Fi communication, ZigBee communication, LoRa communication, Bluetooth communication, 4G communication and 5G communication. One or more.

The routing table also contains the address of the second energy cabin subsystem. When the second energy cabin subsystem and the first energy cabin subsystem connected to the communication bus module transmit information to each other, the routing table needs to be read to obtain the target address. With the control center as the communication node, the source communication protocol is converted in the control center and forwarded to the target address to realize information transmission and ensure high communication coverage and reliability of each external connection system.

S5. Describe the external connection system and establish a corresponding virtual digital model.

Using "digital twin" technology, each energy cabin subsystem is represented in the control center. The virtual digital model is consistent with the state of the external system and evolves in real time by receiving application data from the energy cabin subsystem to form The standardized, modular and intelligent integrated model enables real-time monitoring of the energy flow and information flow of each energy cabin subsystem.

Steps S1 to S4 are to solve the problem of information transmission between different communication protocols at the communication layer. However, the communication protocols of some energy cabin subsystems cannot be changed. Step S5 establishes a virtual digital model at the application layer, and the unchangeable communication protocols can be transferred to the control center on the control center. The energy cabin subsystems that change the protocol and the protocol that can be changed are displayed as unified abstract protocol data; when the first energy cabin subsystem transmits information to the third energy cabin subsystem that cannot change the protocol, the abstract protocol data needs to be twinned first, After being configured by the control center, it is converted into a communication protocol that can be received by the third energy cabin subsystem to realize information transmission.

This energy cabin communication method breaks the information transmission barriers between different communication protocols, realizes cross-network integration and interconnection between external systems, realizes information sharing between different communication methods, improves the efficiency of the energy cabin, and reduces the difficulty and difficulty of operation and maintenance. cost.

It should be noted that the method in this embodiment can be applied in a distributed scenario and is completed by multiple devices cooperating with each other. In this distributed scenario, one of the multiple devices can only execute one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete all the steps. method described.

It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the above-described embodiments and still achieve the desired results. Additionally, the processes depicted in the figures do not necessarily require the specific order shown, or sequential order, to achieve desirable results. Multitasking and parallel processing are also possible or may be advantageous in certain implementations.

Based on the same inventive concept, corresponding to any of the above embodiments, this application also provides an energy cabin communication system, as shown in Figure 2, including a communication bus module and multiple external connections connected in parallel to the communication bus module. System; wherein, the communication bus module is configured to receive source communication protocol data sent by the external system; extract application data from the source communication protocol data, and form a universal message according to a custom protocol; embed the universal message into in the data segment of the target communication protocol data and forwarded to the target external connection system; wherein the general message includes the application data, a start symbol and an end symbol, and the start symbol is used for the target external connection system Start reading the general message, and the terminator is used by the target external connection system to stop reading the general message; the external connection system is configured to send out the source communication protocol data and receive embedded data. Describes the target communication protocol data of the general message.

By uniformly connecting different external connection systems to the communication bus module, the traditional single communication method is broken, and the centralized parallel communication of the system is realized. Different external connection systems adapt the communication interface to improve the transmission efficiency; it also solves the complex on-site connection of the energy cabin and the work efficiency. Low cost and large floor space; setting up a communication bus module can also ensure the adaptability to new equipment systems and new interface types, adapt to various communication methods, reduce operation and maintenance costs, and support flexible combination of different equipment systems , collaborative operation.

For the convenience of description, when describing the above device, the functions are divided into various modules and described separately. Of course, when implementing this application, the functions of each module can be implemented in the same or multiple software and/or hardware.

The devices of the above embodiments are used to implement the corresponding energy cabin communication system in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be described again here.

In some embodiments, as shown in Figure 3, the external connection system includes a first energy cabin subsystem and a control center. The first energy cabin subsystem includes a grid-connection and off-grid control system, a wind power generation control system, and a photovoltaic power generation system. Control system, vehicle charge and discharge control system, energy storage control system, main load control system, cold storage and heat storage control system and environmental detection control system.

Traditional point-to-point communication can only realize the interactive transmission of information between the control center and the energy cabin subsystem. For example, the energy cabin subsystem sends energy monitoring information to the control center, and the control center can issue control instructions to the energy cabin subsystem. If different energy cabin subsystems Information needs to be transmitted between channels and needs to be forwarded through the control center.

By setting up a communication bus module and a custom protocol, each first energy cabin subsystem can directly transmit information interactively. For example, the wind power generation system transmits the first electric energy information to the photovoltaic power generation system, and the photovoltaic power generation system transmits the second electric energy to the wind power generation system. information, supporting the coordinated operation of wind power generation and photovoltaic power generation, and overall realizing interconnection between external systems.

The grid-connected and off-grid control system uses distributed control technology to uniformly control the operating modes of each distributed power supply connected to the energy cabin through the grid-connected and off-grid controller to maintain the consistency of the energy output of the energy cabin.

The wind power generation control system is used in conjunction with the energy external wind turbine to rectify, invert and merge the DC power output from the wind turbine and then connect it to the AC bus.

The photovoltaic power generation control system can control the start and stop of the photovoltaic power generation system, voltage regulation, anti-islanding protection, power quality adjustment, etc. It is the core component of energy conversion in the grid-connected system.

The vehicle charge and discharge control system is a control switch for the energy interaction between electric vehicles and the power grid. It has the characteristics of supporting two-way power flow. The built-in power electronic module can realize high-frequency isolation and voltage conversion between the electric vehicle load and both sides of the distribution network.

The energy storage control system has built-in DC/DC conversion modules and DC circuit breakers, which can control the interaction of high-power electric energy between the DC microgrid and the energy storage unit.

The main load control system can use load monitoring or power management to achieve uninterrupted power supply to important loads in the park without being aware of it. On the other hand, it can complete peak load shaving and valley filling demand response to achieve energy saving, consumption reduction, cost reduction and efficiency improvement.

The cold storage and heat storage control system controls the refrigeration units, electric boilers, cold and heat storage devices, heat exchange devices, water pumps, pipeline regulating valves and other equipment to adjust the operating conditions of cold and heat storage and cooling and heating, and take advantage of peaks and valleys. The electricity price difference provides cooling or heating to the terminal under the most economical circumstances.

In some embodiments, the communication bus module is provided with a communication interface. The communication interface is used to connect with the first energy subsystem. The communication interface includes an RS485 interface, a CAN interface, and a Modbus interface. -Bus interface and Ethernet interface.

Generally speaking, the photovoltaic power generation control system uses the RS485 interface to connect to the communication bus module, which supports reading and writing functions; the wind power generation control system uses the RS485 interface to connect to the communication bus module, and the function only supports readability; the automobile charging and discharging control system uses too The network interface or CAN interface is connected to the communication bus module and functionally supports reading and writing; the energy storage control system uses an Ethernet interface and an optical fiber interface to connect to the communication bus module and functionally supports reading and writing; the main load control system uses an Ethernet interface and RS485 The interface line is connected to the communication bus module and functionally supports reading and writing.

Based on the same inventive concept, corresponding to any of the above embodiments, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor When the program is executed, the energy cabin communication method described in any of the above embodiments is implemented.

Figure 4 shows a more specific hardware structure diagram of an electronic device provided by this embodiment. The device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040 and a bus 1050. It is characterized in that the processor 1010, the memory 1020, the input/output interface 1030 and the communication interface 1040 realize communication connections between each other within the device through the bus 1050.

The processor 1010 can be implemented by a general CPU (Central Processing Unit, central processing unit), a microprocessor, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, and is used to execute related program to implement the technical solutions provided by the embodiments of this specification.

The memory 1020 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 can store operating systems and other application programs. When implementing the technical solutions provided by the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 1020 and called and executed by the processor 1010 .

The input/output interface 1030 is used to connect the input/output module to realize information input and output. The input/output/module can be configured in the device as a component (not shown in the figure), or can be externally connected to the device to provide corresponding functions. It is characterized in that input devices can include keyboards, mice, touch screens, microphones, various sensors, etc., and output devices can include displays, speakers, vibrators, indicator lights, etc.

The communication interface 1040 is used to connect a communication module (not shown in the figure) to realize communication interaction between this device and other devices. It is characterized in that the communication module can communicate through wired means (such as USB, network cable, etc.) or wirelessly (such as mobile network, Wi-Fi, Bluetooth, etc.).

Bus 1050 includes a path that carries information between various components of the device (eg, processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).

It should be noted that although the above device only shows the processor 1010, the memory 1020, the input/output interface 1030, the communication interface 1040 and the bus 1050, during specific implementation, the device may also include necessary components for normal operation. Other components. In addition, those skilled in the art can understand that the above-mentioned device may only include components necessary to implement the embodiments of this specification, and does not necessarily include all components shown in the drawings.

The electronic devices of the above embodiments are used to implement the corresponding energy cabin communication method in any of the foregoing embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be described again here.

Based on the same inventive concept, corresponding to any of the above embodiment methods, the present application also provides a non-transitory computer-readable storage medium, the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions use To make the computer execute the energy cabin communication method as described in any of the above embodiments.

The computer-readable media in this embodiment include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information may be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, Magnetic tape cassettes, tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium can be used to store information that can be accessed by a computing device.

The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the energy cabin communication method as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be described again here.

Those of ordinary skill in the art should understand that the discussion of any above embodiments is only illustrative, and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; under the spirit of the present application, the above embodiments or Technical features in different embodiments can also be combined, steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

Additionally, to simplify illustration and discussion, and so as not to obscure the embodiments of the present application, well-known power supplies/components with integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Ground connection. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present application, and this also takes into account the fact that details regarding the implementation of these block diagram devices are highly dependent on the implementation of the embodiments of the present application. platform (i.e., these details should be well within the understanding of those skilled in the art). Where specific details (eg, circuitry) are set forth to describe the exemplary embodiments of the present application, it will be apparent to one skilled in the art that construction may be accomplished without these specific details or with changes in these specific details. The embodiments of this application are implemented below. Accordingly, these descriptions should be considered illustrative rather than restrictive.

Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art from the foregoing description. For example, other memory architectures (eg, dynamic RAM (DRAM)) may use the discussed embodiments.

The present embodiments are intended to embrace all such alternatives, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of this application shall be included in the protection scope of this application.

Claims (8)

1. An energy cabin communication method, characterized in that it is applied to an energy cabin communication system. The energy cabin communication system includes: a communication bus module and multiple external connection systems connected in parallel to the communication bus module; the energy cabin Communication methods include: The communication bus module receives the source communication protocol data sent by the source external connection system; Extract application data from source communication protocol data and form general messages according to custom protocols; Embed the general message into the data segment of the target communication protocol data and forward it to the target external connection system; Wherein, the general message includes the application data, a start character and an end character, the start character is used for the target external connection system to start reading the general message, and the end character is used for the The target external connection system stops reading the universal message; the length of the data segment embedded in the universal message is less than the maximum limit length; the universal message also includes a length field, a control field, a source address and a destination address, The control field is used to identify the type of the source communication protocol, and the length field is used to count the length of the application data; the general message also includes additional information, and the additional information includes the number of additional information, intermediate sources Address and intermediate target address are used to identify the flow process of the application data. 2. The method according to claim 1, further comprising: dynamically establishing a routing table according to the address of each externally connected system. 3. The method according to claim 2, wherein the external connection system includes a control center, and the routing table is stored in the control center. 4. The method according to claim 1, further comprising: describing the external connection system and establishing a corresponding virtual digital model. 5. An energy cabin communication system, characterized by comprising: a communication bus module and multiple external connection systems connected in parallel to the communication bus module; Wherein, the communication bus module is configured to receive source communication protocol data sent by the external connection system; extract application data from the source communication protocol data and form a universal message according to a custom protocol; embed the universal message into the target communication in the data segment of the protocol data and forwarded to the target external connection system; wherein the general message includes the application data, a start symbol and an end symbol, and the start symbol is used for the target external connection system to start reading Get the universal message, and the terminator is used for the target external connection system to stop reading the universal message; the length of the data segment embedded in the universal message is less than the maximum limit length; the universal message The message also includes a length field, a control field, a source address and a destination address. The control field is used to identify the type of the source communication protocol. The length field is used to count the length of the application data; the general message also Include additional information, the additional information including the amount of additional information, an intermediate source address, and an intermediate target address, used to identify the flow process of the application data; The external connection system is configured to send out the source communication protocol data and receive target communication protocol data embedded in the universal message. 6. The system according to claim 5, characterized in that the external connection system includes a first energy cabin subsystem and a control center, and the first energy cabin subsystem includes a grid-connected and off-grid control system and a wind power generation control system. , Photovoltaic power generation control system, automobile charge and discharge control system, energy storage control system, main load control system, cold and heat storage control system and environmental detection control system. 7. The system according to claim 5, characterized in that the communication bus module is provided with a communication interface, and the communication interface includes an RS485 interface, a CAN interface and an Ethernet interface. 8. An electronic device, including a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that when the processor executes the program, any one of claims 1 to 4 is implemented. method described in the item.