A method and system and apparatus for local network management

Abstract

The application relates to the technical field of automobiles, in particular to a local network management method, system and device. The application establishes a corresponding relationship between a service request instruction and a network segment number, and the management of the network segment can be implemented from the network segment corresponding to the service request instruction according to the corresponding relationship. According to the corresponding relationship between the service request instruction and the network segment, the management of the network segment is implemented to complete the service request instruction, and the application is not limited by the number of network segments, so that the local network management method can be applied to a larger local network.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a local network management method and system and device. BACKGROUND

[0002] The local network management method can manage the network required by each local function service on the entire device, wherein the local function is independently divided by using the SOA model to form a local independent function service. The management of the local network is implemented to manage the local function service. The prior art manages the local network in the form of a message, which defines the state of each network segment (a network segment is a part of the local network) when implementing the local function, and then sends the message to each network segment. Each network segment then checks the management information of each network segment in the message to manage the network segment. However, the message has a byte limit, that is, the message can only record the management information of a limited number of network segments, so the network management method in the form of a message limits the number of network segments.

[0003] In summary, the prior art local network management method limits the number of network segments.

[0004] Therefore, the prior art still needs to be improved and improved. SUMMARY

[0005] The present application provides a local network management method and system and device to solve the technical problem of the prior art that the local network management method limits the number of network segments.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] The first aspect of the present application provides a local network management method, comprising the following steps:

[0008] receiving a service request instruction;

[0009] determining a network segment number corresponding to the service request instruction;

[0010] obtaining a target network segment corresponding to the network segment number in the local network, and managing the communication of the target network segment, wherein the local network comprises a plurality of network segments.

[0011] According to the above technical means, the present application establishes a corresponding relationship between the service request instruction and the network segment number. As long as the corresponding relationship is known, the network segment corresponding to the service request instruction can be obtained, and the management of the network segment can be implemented. According to the corresponding relationship between the service request instruction and the network segment, the management of the network segment is implemented to complete the service request instruction, which is not limited by the number of network segments, so that the local network management method of the present application can be applied to a larger local network.

[0012] Optionally, in one embodiment of the present application, the receiving the service request instruction comprises:

[0013] receiving the service request instruction by a telematics processor, the telematics processor being connected with a gateway via a first backbone network, each gateway being connected with another gateway via a second backbone network, the first backbone network and the second backbone network being synchronous, and the gateway being connected with a network segment.

[0014] According to the above technical means, the embodiment of the present application can make each backbone network synchronous communication, and each backbone network synchronous communication can synchronously transmit the network segment number corresponding to the service request instruction to each gateway, so as to facilitate each gateway to synchronously manage the network segment hung thereunder, thereby improving the network management efficiency.

[0015] Optionally, in one embodiment of the present application, the determining the network segment number corresponding to the service request instruction comprises:

[0016] determining a service object to which the service request instruction is directed;

[0017] monitoring whether a current running state of the service object meets a set condition;

[0018] when the current running state meets the set condition, querying the network segment number corresponding to the service request instruction.

[0019] According to the above technical means, the embodiment of the present application does not match the network segment number to all service request instructions, and then manage the network segment corresponding to the network segment number, but requires the current running state of the service object to determine whether to support the corresponding network segment of the service object, thereby avoiding the waste of network resources.

[0020] Optionally, in one embodiment of the present application, further comprising:

[0021] collecting a network state of the target network segment;

[0022] sending the network state of the target network segment and the network segment number of the target network segment to a display terminal.

[0023] According to the above technical means, the embodiment of the present application sends the network state and the network number of the network segment to the display terminal, so as to facilitate the testing and maintenance personnel to timely master the network state of the network segment, and also facilitate the maintenance personnel to locate the fault network segment.

[0024] The second aspect embodiment of the present application provides a local network management system, comprising:

[0025] a telematics processor, configured to collect a service request instruction;

[0026] The mapping relationship query module is configured to query a network segment number corresponding to the service request instruction.

[0027] The control command distribution module is connected to the output end of the mapping relationship query module and configured to distribute the network segment number.

[0028] The communication control module is connected to the output end of the control command distribution module and configured to control communication of a target network segment corresponding to the network segment number.

[0029] According to the technical means, the modules of the embodiment of the application work cooperatively, and each network segment can be better managed according to the service request instruction. The mapping relationship query module records the corresponding relationship between the service request instruction and the network segment number, and the target network segment can be quickly located.

[0030] Optionally, in an embodiment of the application, the network management device further comprises:

[0031] The network state service module is configured to determine whether to start the mapping relationship query module according to a current running state of a service object to which the service request instruction is directed.

[0032] According to the technical means, the valuable service request instruction can be screened out, so that the network resources can be saved.

[0033] Optionally, in an embodiment of the application, the communication control module comprises:

[0034] The control execution module is connected to the output end of the control command distribution module and configured to receive the network segment number distributed by the control command distribution module.

[0035] The communication management module is connected to the output end of the control execution module and configured to determine a CAN interface corresponding to the network segment number.

[0036] The CAN communication state execution module is configured to control communication of the target network segment corresponding to the network segment number by controlling a communication state of the CAN interface.

[0037] According to the technical means, the control execution module wakes up the communication management module, the network segment number is sent to the communication management module, the CAN interface of the network segment number is searched by the communication management module, and finally the CAN communication state execution module determines whether the CAN interface communicates. The modules work cooperatively, and the communication of the network segment can be better managed.

[0038] The third aspect of the application provides a local network management device, comprising:

[0039] The receiving module is configured to receive a service request instruction.

[0040] The network segment querying module is configured to determine a network segment number corresponding to the service request instruction.

[0041] The management module is configured to acquire a target network segment corresponding to the network segment number in a local network, and manage communication of the target network segment, wherein the local network comprises a plurality of network segments.

[0042] The fourth aspect of the present application provides a terminal device, which comprises a memory, a processor, and a local network management program stored in the memory and executable on the processor. When the processor executes the local network management program, the steps of the local network management method described above are implemented.

[0043] The fifth aspect of the present application provides a computer readable storage medium, which stores a local network management program. When the processor executes the local network management program, the steps of the local network management method described above are implemented.

[0044] The present application has the following beneficial effects:

[0045] The embodiments of the present application can synchronize communication of each backbone network, and the synchronized communication of each backbone network can synchronize transmission of the network segment number corresponding to the service request instruction to each gateway, so as to facilitate each gateway to synchronously manage the network segment hung thereunder, thereby improving network management efficiency.

[0046] The embodiments of the present application do not match the network segment number for all service request instructions, and then manage the network segment corresponding to the network segment number, but require the current running state of the serviced object to determine whether to support the corresponding network segment of the serviced object, thereby avoiding waste of network resources.

[0047] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0048] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0049] Figure 1 The figure is a whole flowchart of the present application;

[0050] Figure 2 The figure is a network topology diagram in the embodiments of the present application;

[0051] Figure 3 The figure is a main gateway structure diagram in the embodiments of the present application;

[0052] Figure 4 This is an interactive schematic diagram of the communication control module in an embodiment of this application;

[0053] Figure 5 This is a schematic diagram of the interactions between various gateways in the embodiments of this application;

[0054] Figure 6 This is a schematic diagram of the structure of a local network management device according to an embodiment of this application;

[0055] Figure 7 This is a block diagram illustrating the internal structure of a terminal device provided in an embodiment of this application. Detailed Implementation

[0056] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0057] The following description, with reference to the accompanying drawings, describes a local network management method, system, and apparatus according to embodiments of this application. Addressing the issue mentioned in the background section regarding the limitation on the number of network segments in local network management methods, this application provides a local network management method. In this method, a service request instruction is first received; then, the network segment number corresponding to the service request instruction is determined; finally, the target network segment corresponding to the network segment number is obtained in the local network, and communication of the target network segment is managed. The local network includes several network segments. The network management method of this application can manage more network segments.

[0058] For example, existing technologies use messages to implement [the action / action]. Figure 2 The local network consisting of CA1, CAN2, CAN3...CAN11 is managed (that is, whether CA1, CAN2, CAN3...CAN11 communicate). The existing hardware only allows the allocation of Bit2 to Bit7 in Table 1 to the message, that is, the existing hardware only supports allocating 48 bits to the message.

[0059] Table 1

[0060]

[0061] Figure 2 It is a topology diagram of a vehicle's local area network. Figure 2TBOX (remote information processor) in the TBOX receives the message (such as the message as a kind of service request instruction, requests the communication of several network segments in CA1, CAN2, CAN3...CAN11 to maintain the service provided by the vehicle seat), the message will be sent to the gateway 2 through the backbone network 1 below, and the gateway 2 will send the message to CAN5, CAN6 and CAN7, and the three messages will query whether there is a control instruction for them on the message. Similarly, the gateway 1 will send the message to the three network segments hanging below it after receiving the message through the backbone network 2, and the three network segments will also query whether there is a control instruction for them on the message. That is, each network segment needs to traverse the message, thereby reducing the local network management efficiency, in addition, the message can have at most 48 bits, so the form of the message can only manage 48 network segments. In order to solve the above-mentioned prior art problems of limiting the number of network segments and low network management efficiency, the management of each network segment is implemented in the following manner, and the specific process is as follows:

[0062] When Figure 2 the TBOX receives the service request instruction, the backbone network 1 as the source network receives the service request instruction and then transmits it to the gateway 2 as the main gateway. The structure of the gateway 2 is shown in Figure 3 , the network wake-up service module and the external request processing module system process the service request instruction accordingly, and the processed service request instruction is transmitted to the mapping relationship query module to query which network segments need to be awakened or which network segments need to be hibernated, such as the service request instruction requesting to maintain the communication function of the vehicle headlight illumination, and the function of maintaining the vehicle headlight illumination needs to wake up the network segment CAN1 and the network segment CAN2. Therefore, the number CAN1 and the number CAN2 are sent to the control command distribution module, the control command distribution module queries that CAN1 and CAN2 are hanging on the gateway 1, and then the control command distribution module sends the number CAN1 and the number CAN2 to the gateway 1. The gateway 1 is provided with a communication control module as shown in Figure 4 , the network segment CAN1 and the network segment CAN2 are awakened through the communication control module, thereby realizing the management of the network segment.

[0063] Specifically, Figure 1 a local network management method flowchart provided by the embodiment of the application.

[0064] As shown in Figure 1 , the local network management method comprises the following steps:

[0065] S100, the main gateway receives the service request instruction.

[0066] For example Figure 2The TBOX (telematics box) in the vehicle receives the service request instruction, and then sends the service request instruction to the gateway 2 (main gateway), and the external request processing unit of the gateway 2 receives the service request instruction.

[0067] In one embodiment, the first backbone network (backbone 1 in the vehicle) between the gateway 2 and the TBOX and the second backbone network (backbone 2 and backbone 3 in the vehicle) are in synchronous communication. The synchronous communication has the following beneficial effects: Figure 2 Figure 2 After the main backbone network 1 starts the communication function, the other backbone networks also start the communication function, thereby reducing the time for the service request instruction to be sent to the other gateway through the other backbone network.

[0068] After the main backbone network 1 starts the communication function, the other backbone networks also start the communication function, thereby reducing the time for the service request instruction to be sent to the other gateway through the other backbone network.

[0069] S200, the main gateway determines the network segment number corresponding to the service request instruction.

[0070] The main gateway does not query the network segment number corresponding to the service request instruction as soon as it receives the service request instruction, but first determines whether the service request instruction needs to be executed.

[0071] In one embodiment, step S200 includes the following steps S201, S202, and S203:

[0072] S201, determine each service object corresponding to each service request instruction.

[0073] S202, monitor whether the current running state of the service object meets the set condition.

[0074] S203, when the current running state meets the set condition, query the network segment number corresponding to the service request instruction.

[0075] As shown in Table 2, for example, the service request instruction is to maintain the driver seat network (that is, to keep the communication state for the service of the driver seat), when the main gateway receives the service request instruction, it first queries the current running state of the driver seat (service object):

[0076] Condition 1: the driver seat heating function is being executed.

[0077] Condition 2: the driver seat ventilation function is being executed.

[0078] Condition 3: the driver seat adjustment function is being executed.

[0079] If one of the above three conditions is met, the main gateway will query the network segment number corresponding to the instruction to maintain the driver seat network, and if none of the above three conditions is met, the main gateway will not query the network segment number corresponding to the instruction.

[0080] ​Table 2

[0081]

[0082] In another embodiment, in addition to focusing on the running state of the main driver seat, it is also focused on whether the car is OFF. Only when the car is in OFF state and one of the above three conditions is met, the main gateway will query the network segment number corresponding to the instruction for maintaining the main driver seat network, otherwise it will not be queried. If it is not in the OFF state, each gateway and network segment is in a communication state, so there is no need to control their communication state again.

[0083] If the service request instruction is to sleep the main driver seat network (that is, to keep the main driver seat network in a non-communication state), the preconditions and trigger conditions are shown in Table 3:

[0084] Table 3

[0085]

[0086] In another embodiment, the main network and each network segment are awakened in the following way:

[0087] The associated network segments of the seat control service are main network 1, main network 2, main network 3, network segment 5, and network segment 6. When the seat control service is called, the associated network wake-up service is also called, and the wake-up service lower control execution module calls the request communication mode interface function to wake up the corresponding network segment.

[0088] S300, the main gateway obtains the target network segment corresponding to the network segment number in the local network, and manages the communication of the target network segment, wherein the local network includes a plurality of network segments.

[0089] In one embodiment, after controlling each target network segment through steps S100, S200 and S300, the running state of each target network segment is monitored, and the network state of the target network segment and the network segment number of the target network segment are sent to the display terminal.

[0090] In one embodiment, a local network management system is provided, comprising:

[0091] The remote information processor is configured to collect service request instructions.

[0092] The mapping relationship query module is configured to query the network segment number corresponding to the service request instruction.

[0093] The control command distribution module is connected to the output end of the mapping relationship query module, and is configured to distribute the network segment number.

[0094] The communication control module is connected with the output end of the control command distribution module, and is used for controlling the communication of the target network segment corresponding to the network segment number.

[0095] The network state service module is used for determining whether to start the mapping relationship query module according to the current running state of the service object to which the service request instruction is directed.

[0096] The relationship between the above modules and the gateways is shown in Table 4.

[0097] Table 4

[0098]

[0099] When the service request instruction is to wake up each network segment (to keep each network segment in a communication state), the running process of the whole system is as follows:

[0100] As shown in Figure 5 , the external request processing module of the gateway node 2 receives the service request instruction (wake-up service) sent by the remote information processor, the network wake-up service module judges that the service object to which the service request instruction is directed satisfies any one of the conditions (condition 1, condition 2 and condition 3 in Table 2) and the precondition, then the network wake-up service module calls the underlying basic service (the basic software management module in Figure 5 , which controls the start of the mapping relationship query module, the communication control module and other modules), acquires the corresponding main trunk network 1, main trunk network 2, main trunk network 3, network segment 5 (CAN5) and network segment 6 (CAN6) of the main seat control service according to the mapping relationship query module, and then the control command distribution module distributes the network segment 5 and the network segment 6 to the communication control module, so that the communication control module keeps the network segment 5 and the network segment 6 in a wake-up state.

[0101] In one embodiment, as shown in Figure 4 , the communication control module includes the following components:

[0102] The control execution module is connected with the output end of the control command distribution module, and is used for receiving the network segment number distributed by the control command distribution module.

[0103] The communication management module is connected with the output end of the control execution module, and is used for determining the CAN interface corresponding to the network segment number.

[0104] The CAN communication state execution module is used for controlling the communication of the target network segment corresponding to the network segment number by controlling the communication state of the CAN interface.

[0105] After the control execution module receives the network segment number, the standard interface request communication mode interface function (CANCommMode) provided by the communication management module is called. Figure 4The CAN network management module in the gateway 2 includes the CAN interface function corresponding to each network segment) to the CAN communication state execution module, the CAN communication state execution module sets the input parameter of the CAN interface function as FULL_COM (full communication mode), that is, the wake-up maintenance of the corresponding network segment is realized. On the contrary, the input parameter is set as NO_COM (non-communication mode), that is, the sleep (network segment non-communication) maintenance of the corresponding network segment is realized.

[0106] In order to realize the principle of unified entrance, the network wake-up service on the gateway 2 is the only request entrance of the local network wake-up function, and the request from outside the domain also includes the request from the gateway 1 to the gateway 2.

[0107] In summary, the embodiment of the application can synchronize the communication of each backbone network, and the synchronization of the communication of each backbone network can synchronize the transmission of the network segment number corresponding to the service request instruction to each gateway, so as to synchronize the management of the network segment hung below each gateway, thereby improving the network management efficiency.

[0108] The embodiment of the application does not match the network segment number for all service request instructions, and then manage the network segment corresponding to the network segment number, but requires the current running state of the serviced object to determine whether to support the corresponding network segment of the serviced object, thereby avoiding the waste of network resources.

[0109] Secondly, the local network management device according to the embodiment of the application is described with reference to the accompanying drawings.

[0110] As shown in the figure, the local network management device 10 includes a receiving module 100, a network segment query module 200 and a management module 300. Figure 6

[0111] Specifically, the receiving module 100 is configured to receive a service request instruction.

[0112] The network segment query module 200 is configured to determine the network segment number corresponding to the service request instruction.

[0113] The management module 300 is configured to acquire a target network segment corresponding to the network segment number in the local network, and manage the communication of the target network segment, wherein the local network includes a plurality of network segments.

[0114] It should be noted that the above explanation and description of the embodiment of the local network management method also applies to the local network management device of this embodiment, which will not be described here.

[0115] Figure 7 The structure schematic diagram of the terminal device provided by the embodiment of the application is shown in the figure. The terminal device can include:

[0116] ​The memory 501, the processor 502 and the computer program stored in the memory 501 and executable on the processor 502.

[0117] The processor 502 implements the local network management method provided in the above embodiments when executing the program.

[0118] Further, the terminal device further comprises:

[0119] The communication interface 503 is used for communication between the memory 501 and the processor 502.

[0120] The memory 501 is used for storing the computer program executable on the processor 502.

[0121] The memory 501 can include a high-speed RAM memory, and can also include a non-volatile memory, for example, at least one disk memory.

[0122] If the memory 501, the processor 502 and the communication interface 503 are independently implemented, the communication interface 503, the memory 501 and the processor 502 can be connected to each other through a bus and complete communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 7 In the figure, only one thick line is used to represent, but it does not mean that there is only one bus or one type of bus.

[0123] Optionally, in a specific implementation, if the memory 501, the processor 502 and the communication interface 503 are integrated on a chip, the memory 501, the processor 502 and the communication interface 503 can complete communication between each other through an internal interface.

[0124] The processor 502 can be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement one or more embodiments of the present application.

[0125] The embodiment also provides a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to implement the local network management method.

[0126] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or N embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0127] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0128] Any process or method descriptions in flow charts or otherwise described herein represent embodiments that can be understood as a module, segment, or portion of code that includes one or N executable instructions for implementing the specified logical function or process. The scope of the preferred embodiments of the present application includes additional implementation in which the functions described in the illustrated or discussed order are performed in a different order, including substantially simultaneously, or in reverse order, according to the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0129] The logic and / or steps represented in the flowcharts and / or described herein, for example, can be considered as a list of instructions to implement a logical function, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor- based system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions, or a combination of both. In the context of this specification, a "computer-readable medium" can be any means that can contain, store, communicate, propagate or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electronic connection having one or N wires (electronic devices), a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, and a portable compact disc read-only memory (CDROM). In addition, the computer-readable medium can even be paper or other suitable medium upon which the program can be printed, because the program can be electronically obtained from the paper or other medium by optically scanning the paper or other medium, then by editing, interpreting, or otherwise processing the optically scanned program to generate electronic data, and then storing the electronic data in a computer memory.

[0130] It should be understood that portions of the present application can be implemented in hardware, software, firmware, or combinations thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented in hardware and in another embodiment, any of the following technologies known in the art or their combinations can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

[0131] Those skilled in the art of the present technology can understand that all or part of the steps carried out by the above-mentioned embodiments can be completed by programs instructing related hardware, and the programs can be stored in a computer-readable storage medium. When the program is executed, it includes one of the steps of the method embodiments or a combination thereof.

[0132] In addition, each of the functional units in the various embodiments of the present application can be integrated in one processing module, or each of the units can be physically present separately, or two or more units can be integrated in one module. The integrated module can be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0133] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc. Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A local network management method, characterized in that, Includes the following steps: The system receives service request instructions via a remote information processor (RAP). The RAP is connected to a first backbone network, which is the main gateway. The other gateways are connected to a second backbone network. The first backbone network and the second backbone network communicate synchronously. All gateways are connected to network segments. The main gateway is equipped with a mapping query module and a control command distribution module. The main gateway and the other gateways connected to it are equipped with control execution modules. The mapping relationship query module queries the network segment number corresponding to the service request instruction, the control command distribution module distributes the network segment number, and the network segment number is synchronously transmitted to each gateway. The control execution module receives the network segment number distributed by the control command distribution module. The target network segment corresponding to the network segment number is obtained in the local network, and the communication of the target network segment is managed. The local network includes several network segments. The process of querying the network segment number corresponding to the service request instruction includes: Determine the service object to which the service request instruction is directed; Monitor whether the current operating status of the service object meets the set conditions; When the current operating status meets the set conditions, query the network segment number corresponding to the service request instruction.

2. The local network management method as described in claim 1, characterized in that, Also includes: Collect the network status of the target network segment; The network status and segment number of the target network segment are sent to the display terminal.

3. A local network management system, characterized in that, include: A remote information processor is used to collect service request instructions and receive the service request instructions through the remote information processor. The remote information processor is connected to a first backbone network with a gateway, which is the main gateway. The other gateways are connected to a second backbone network with the main gateway. The first backbone network and the second backbone network are synchronized. All gateways are connected to a network segment. The mapping relationship query module is used to query the network segment number corresponding to the service request instruction. It is deployed on the main gateway. Querying the network segment number corresponding to the service request instruction includes: determining the service object targeted by the service request instruction, monitoring whether the current running status of the service object meets the set conditions, and querying the network segment number corresponding to the service request instruction when the current running status meets the set conditions. The control command distribution module, whose input end is connected to the output end of the mapping relationship query module, is used to distribute the network segment number and is deployed on the main gateway so that the network segment number is synchronously transmitted to each gateway. The communication control module, with its input end connected to the output end of the control command distribution module, is used to control the communication of the target network segment corresponding to the network segment number, and is deployed on the main gateway and other gateways.

4. The local network management system as described in claim 3, characterized in that, Also includes: The network status service module is used to determine whether to start the mapping relationship query module based on the current running status of the service object targeted by the service request instruction.

5. The local network management system as described in claim 3, characterized in that, The communication control module includes: The control execution module has its input end connected to the output end of the control command distribution module, and is used to receive the network segment number distributed by the control command distribution module; The communication management module, with its input end connected to the output end of the control execution module, is used to determine the CAN interface corresponding to the network segment number; The CAN communication status execution module is used to control the communication of the target network segment corresponding to the network segment number by controlling the communication status of the CAN interface.

6. A terminal device, characterized in that, The terminal device includes a memory, a processor, and a local network management program stored in the memory and executable on the processor. When the processor executes the local network management program, it implements the steps of the local network management method as described in any one of claims 1-2.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a local network management program, which, when executed by a processor, implements the steps of the local network management method as described in any one of claims 1-2.

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