WO2023231899A1

WO2023231899A1 - Communication scheduling method and apparatus, and related device

Info

Publication number: WO2023231899A1
Application number: PCT/CN2023/096320
Authority: WO
Inventors: 石帅; 童笑; 付亚臣; 周志伟; 罗杰
Original assignee: 华为技术有限公司
Priority date: 2022-05-31
Filing date: 2023-05-25
Publication date: 2023-12-07
Also published as: CN117221955A

Abstract

Provided in the present application are a communication scheduling method and apparatus, and a related device. In the method, the priority of a network device can be updated in real time by means of acquiring a device type and a real-time operation state, and a communication resource can be allocated to the network device according to the priority, which is updated in real time, such that a real-time operation requirement can be better met. Moreover, by means of carrying a response priority in a request message, an opposite-end network device can process the request message according to the response priority, such that bidirectional communication can be performed according to the priority. In the communication scheduling method provided in the present application, communication suppression can also be performed, in emergency communication, on a port, which is connected to a non-emergency communication device, of the network device, such that communication data from other devices does not occupy communication resources, thereby ensuring that data of emergency communication can be preferentially sent and received.

Description

A communication scheduling method, device and related equipment

This application claims priority to the Chinese patent application filed with the China Patent Office on May 31, 2022, with the application number 202210615277.X and the application title "A communication scheduling method, device and related equipment", the entire content of which is incorporated by reference incorporated in this application.

Technical field

The present invention relates to the field of communication, and in particular, to a communication scheduling method, device and related equipment.

Background technique

In a communication network, there is usually a situation where one network device is connected to multiple network devices. The device connected to multiple network devices can be called a master device, and other network devices can be called slave devices. The master device can also set the priority for the slave device. When receiving a message from a slave device with a higher priority, the master device will give priority to the message from the slave device or send a message to the slave device with a higher priority. arts.

However, in the actual operation of network equipment, the demand for communication resources of network equipment will change with the progress of the operation. Often, messages sent by network devices that are operating or preparing to operate need to be processed as soon as possible, and messages to network devices that are operating or preparing to operate also need to be sent with priority, so that the corresponding response messages can be received as soon as possible, making the network Equipment services can be executed on time. However, setting fixed priorities for network devices cannot meet actual operational needs.

Therefore, how to reasonably allocate communication resources for actual operating network equipment is an issue that needs to be solved urgently.

Contents of the invention

This application provides a communication scheduling method, device and related equipment. By obtaining the device type and real-time operation status, it updates the priority of the network equipment in real time, and allocates communication resources to the network equipment according to the real-time updated priority, which can better meet the real-time needs. Job requirements.

In a first aspect, the present application provides a communication scheduling method, applied to a first network device, including: obtaining the device type and operation status of at least one network device connected to the first network device; wherein the at least one network device includes a second network device. Network equipment; determine a first priority table according to the equipment type of at least one network equipment. The first priority table includes the initial priority of at least one network equipment, wherein the initial priorities of network equipment with the same equipment type are the same; determine the first priority table. an initial priority of the second network device, and determine a target priority of the second network device based on the job status of the second network device and the initial priority of the second network device in the first priority table.

In the above solution, the initial priorities of the network devices are first sorted based on the device types of the connected network devices to obtain the first priority table, and then the initial priorities of the second network devices are adjusted according to the operating status of the network devices. Get the target priority of the second network device. In this way, the first network device can communicate with the second network device based on the target priority. The target priority takes into account both the device type of the second network device and the operating status of the second network device, and can satisfy the needs of the second network device. The need for communication in real-time operations.

In conjunction with the first aspect, in some implementations, the communication scheduling method further includes updating the first priority table to the second priority table according to the target priority of the second network device.

In the above solution, after obtaining the first priority table, the initial priority will be adjusted according to the working status of the network device, and finally the second priority table will be obtained. The communication between the first network device and the network device connected to it is in accordance with the second Priority table is used to enable the first network device to communicate with the network device according to the real-time operating status of the network device when the communication requirements of the network device change with the work process, thereby meeting the network device's demand for communication resources. .

Combined with the first aspect, in some implementations of the communication scheduling method, the second priority table is determined by re-sorting the network devices with the same initial priority in the first priority table according to the priority corresponding to the job status; or , the second priority table is determined by adjusting the initial priority of each network device according to the preset ranking corresponding to the operating status of each network device.

In the above solution, the second priority table can be obtained by reordering network devices of the same device type according to the job status, or it can be obtained by adjusting the initial priority to the preset ranking according to the job status, for example, the network devices in operation The initial priority of the device is adjusted forward by several positions. In this way, the priority of the network device in the second priority table is comprehensively obtained based on the device type and operating status of the network device. The first network device communicates with the network device according to the second priority table, which can better meet the needs of the network device for communication. resource requirements.

In conjunction with the first aspect, in some implementations, the communication scheduling method further includes: determining whether to communicate with the second network device according to the second priority table; when it is determined to communicate with the second network device, sending a request to the second network device. The network device sends a first request message, the first request message carries a response priority, and the response priority is used by the second network device to determine the time to respond to the first request message.

In the above solution, when the first network device sends a request message to the second network device, the request message also carries the response priority. The second network device can also arrange the processing of the request message according to the response priority, so that the two-way communication between the first network device and the second network device can be carried out according to the priority, instead of only the first network device can according to the priority. Prioritize processing of data from other network devices, thereby improving communication efficiency between network devices on both sides.

Combined with the first aspect, in some implementations, the communication scheduling method further includes: determining whether to communicate with the second network device according to the second priority table; when it is determined to communicate with the second network device, receiving the second The second request message sent by the network device; determine the response priority of the second request message according to the second request message, and the response priority of the second request message is determined according to the session type of the second request message.

In the above solution, the first network device determines the time to respond to the request message according to the session type of the request message sent by the second network device. After the first network device determines to communicate with the second network device according to the target priority, it will also determine the time to respond to the request message according to the session type of the request message, so that the session with a higher session type priority can be prioritized, thereby improving Communication efficiency.

Combined with the first aspect, in some implementations, there are multiple sessions between the first network device and the second network device. The communication scheduling method further includes: obtaining the session types of the multiple sessions; according to the session type, from the multiple sessions The target session is determined based on the request priority corresponding to the session type in multiple sessions. The request priority corresponding to the session type is used to indicate the order in which session request messages are sent.

In the above solution, the first network device will also prioritize multiple sessions conducted by the second network device by session type. After the first network device determines to communicate with the second network device based on the target priority, it will prioritize the sessions according to the target priority. handle multiple sessions. In this way, sessions that need to be responded to faster can be processed with priority. Furthermore, services with high session priority can be carried out first, and the overall business can be carried out in an orderly manner, which improves the progress of the overall business.

With reference to the first aspect, in some implementations, the communication scheduling method further includes: determining whether it is in an emergency communication state; determining emergency communication with the second network device based on the emergency state; and, after the emergency state is lifted, according to the second A priority table determines whether to communicate with the second network device.

In the above solution, the first network device can also perform emergency communication with other network devices. When the first network device In an emergency state, the peer network device for communication will be determined based on the emergency state. After the emergency state is lifted, the first network device determines the peer network device for communication according to the second priority table. In this way, the data transmission of emergency communication is performed first, and then the data transmission is performed according to the priority table, which can meet the situation of emergency communication in the actual network.

With reference to the first aspect, in some implementations, the first port of the first network device is connected to the second port of the second network device, and the communication scheduling method further includes: receiving a start message sent by the second network device, The start message carries an emergency communication start tag, and the start tag is used to indicate the start of the emergency state; according to the start message, emergency communication with the second network device is determined, and communication on other ports except the first port is suppressed.

In the above solution, the first network device determines to conduct emergency communication with the second network device. After the second network device initiates the emergency communication, both the first network device and the second network device will suppress the communication of other ports and only retain emergency communication. port, so that the data of other devices will not occupy emergency communication resources, improving the efficiency of emergency communication.

Combined with the first aspect, in some implementations, the communication scheduling method further includes: receiving a termination message sent by the second network device, the initial message carrying an emergency communication termination mark; and restoring the port except the first port according to the termination message. communication on other ports.

In the above solution, the second network device sends a termination message to the first network device to end the emergency communication with the first network device, and then both the first network device and the second network device resume communication on all ports. In this way, during emergency communication, data from other devices will not occupy emergency communication resources, improving the efficiency of emergency communication.

Combined with the first aspect, in some implementations, the communication scheduling method further includes: the initial message also carries an emergency communication duration, and the emergency communication duration is used by the first network device to determine the communication suppression duration of other ports except the first port. .

In the above solution, the second network device can also carry the emergency communication duration in the initial message. After the emergency communication duration is reached, the first network device and the second network device will end the emergency communication and resume communication on all ports. In this way, the second network device does not need to send additional termination messages, and during emergency communication, data from other devices will not occupy emergency communication resources, which improves the efficiency of emergency communication.

Combined with the first aspect, in some implementations, the communication scheduling method also includes: device types include: motion control class, status control class and status sensing class, where the device type corresponds to the initial priority of the network device from high to The low ones are: motion control class, status control class, status sensing class; the job status includes: working, preparing to work, and not working. Among them, the priority corresponding to the job status from high to low is: working, preparing to work, No work was done.

In the above solution, the motion control network equipment needs a higher priority because it needs to perform action operations. The working network equipment has ongoing operation business data that needs to be sent. Therefore, the corresponding network equipment also has a higher priority. . In this way, when the communication requirements of the network device change with the operation process, the first network device can also communicate with the network device according to the real-time operation status of the network device, thereby meeting the network device's demand for communication resources.

Combined with the first aspect, in some implementations, the communication scheduling method also includes: session types include: control session, query session, subscription session, where the request priority corresponding to the session type from high to low is: Control session, query session, subscription session. The response priority corresponding to the session type from high to low is: query session, control session, subscription session.

In the above solution, the first network device will also prioritize multiple sessions conducted by the second network device according to session type, so that sessions that need to be responded to faster can be processed first, and then services with high session priority can be processed first. It can be carried out with priority, and the overall business can be carried out in an orderly manner, which improves the progress of the overall business.

In a second aspect, the present application provides a communication scheduling device, applied to a first network device, including: an obtaining unit and a determining unit; the obtaining unit is used to obtain the device type and operation of at least one network device connected to the first network device. state; wherein, at least one network device includes a second network device; the determining unit is configured to determine a first priority table according to the device type of the at least one network device, and the first priority table includes an initial priority of at least one network device, wherein , network devices with the same device type have the same initial priority; the determining unit is also used to determine the initial priority of the second network device, and determine the initial priority of the second network device according to the job status of the second network device and the initial priority of the second network device in the first priority table. Priority, which determines the target priority of the secondary network device.

In conjunction with the second aspect, in some implementations, the determining unit is further configured to update the first priority table to the second priority table according to the target priority of the second network device.

Combined with the second aspect, in some implementations, the second priority table is determined by re-sorting the network devices with the same initial priority in the first priority table according to the priority corresponding to the job status; or, the second priority table The table determines the initial priority of each network device according to the preset ranking corresponding to the job status of each network device.

With reference to the second aspect, in some implementations, the device further includes a sending unit; the determining unit is further configured to determine whether to communicate with the second network device according to the second priority table; the sending unit is configured to determine whether to communicate with the second network device. When communicating, a first request message is sent to the second network device. The first request message carries a response priority, and the response priority is used by the second network device to determine the time to respond to the first request message.

With reference to the second aspect, in some implementations, the device further includes a receiving unit; the determining unit is further configured to determine whether to communicate with the second network device according to the second priority table; the receiving unit is configured to determine whether to communicate with the second network device according to the second priority table. When communicating, receive the second request message sent by the second network device; the determining unit is also used to determine the response priority of the second request message according to the second request message, and the response priority of the second request message is Determined according to the session type of the second request message.

Combined with the second aspect, in some implementations, there are multiple sessions between the first network device and the second network device, and the obtaining unit is also used to obtain the session types of the multiple sessions; the determining unit is also used to obtain the session types from the multiple sessions according to the session types. The target session is determined in each session. The target session is determined based on the request priority corresponding to the session type in multiple sessions. The request priority corresponding to the session type is used to indicate the order in which session request messages are sent.

Combined with the second aspect, in some implementations, the determining unit is also used to determine whether it is in an emergency communication state; based on the emergency state, determine emergency communication with the second network device; and, after the emergency state is lifted, the determining unit is also used to determine according to The second priority table determines whether to communicate with the second network device.

Combined with the second aspect, in some implementations, the first port of the first network device is connected to the second port of the second network device; the receiving unit is also used to receive a start message sent by the second network device. The message carries an emergency communication start mark, and the start mark is used to indicate the start of the emergency state; the determination unit is also used to suppress communication on other ports except the first port according to the start message.

Combined with the second aspect, in some implementations, the receiving unit is also used to receive a termination message sent by the second network device, the termination message carries an emergency communication termination mark, and the termination mark is used to indicate that the emergency state is lifted; the determining unit is also used to According to the termination message, communication on other ports except the first port is restored.

Combined with the second aspect, in some implementations, the initial message also carries an emergency communication duration, and the emergency communication duration is used by the first network device to determine the communication suppression duration of other ports except the first port.

Combined with the second aspect, in some implementations, the device types include: motion control class, status control class and status sensing class, where the device type corresponds to the initial priority of the network device from high to low: motion control class, status Control class, status sensing class; work status includes: working, preparing work and not working, among which, the work status The corresponding priorities from high to low are: working, preparing to work, and not working yet.

Combined with the second aspect, in some implementations, the session types include: control session, query session, and subscription session, where the request priority corresponding to the session type from high to low is: control session, query session, For subscription sessions, the response priorities corresponding to the session types from high to low are: query session, control session, and subscription session.

In a third aspect, this application provides a network device, which is characterized by including a processor and a memory. The memory is used to store instructions, and the processor is used to execute instructions. When the processor executes the instructions, the execution is as described in the first aspect. Methods.

In a fourth aspect, this application provides a computer-readable storage medium, which is characterized in that instructions are stored in the computer-readable storage medium, and when the instructions are run on a network device, the method described in the first aspect is executed.

In a fifth aspect, the present application provides a computer program product, which is characterized in that the computer program product includes computer instructions, and when executed by a computing device, the computing device performs the method described in the first aspect.

To sum up, the method provided by this application can better meet the needs of real-time operations by obtaining the device type and real-time operation status, updating the priority of the network equipment in real time, and allocating communication resources to the network equipment according to the real-time updated priority. Moreover, by carrying the response priority in the request message, the peer network device can process the request message according to the response priority, so that two-way communication can be carried out according to the priority. The communication scheduling method provided by this application can also suppress communication on the ports connecting network equipment and non-emergency communication equipment during emergency communication, so that communication data of other devices will not occupy communication resources, and ensure that emergency communication data can be prioritized. Send and receive.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present application more clearly, the drawings needed to be used in the description of the embodiments will be briefly introduced below.

Figure 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

Figure 2 is a schematic diagram of the communication system architecture of an industrial equipment network provided by an embodiment of the present application;

Figure 3 is a schematic flowchart of a communication scheduling method provided by an embodiment of the present application;

Figure 4 is a schematic diagram of a first priority table provided by an embodiment of the present application;

Figure 5A is a schematic diagram of a second priority table generation process provided by an embodiment of the present application;

Figure 5B is a schematic diagram of another second priority table generation process provided by an embodiment of the present application;

Figure 6 is a schematic diagram of a second priority table provided by an embodiment of the present application;

Figure 7 is a schematic flowchart of a network device sending a request message according to an embodiment of the present application;

Figure 8 is a schematic diagram of inhibiting the first port provided by an embodiment of the present application;

Figure 9A is a schematic diagram of session communication between network devices provided by an embodiment of the present application;

Figure 9B is a schematic diagram of multiple sessions between network devices provided by an embodiment of the present application;

Figure 10 is a schematic flowchart of a network device receiving a request message provided by an embodiment of the present application;

Figure 11 is a schematic flowchart of an emergency communication method between network devices provided by an embodiment of the present application;

Figure 12 is a schematic diagram of suppressing ports other than the second port provided by an embodiment of the present application;

Figure 13 is a schematic flowchart of another emergency communication method between network devices provided by an embodiment of the present application;

Figure 14A is a schematic flowchart of an emergency communication method including an intermediate network node provided by an embodiment of the present application;

Figure 14B is a schematic flowchart of another emergency communication method including an intermediate network node provided by an embodiment of the present application;

Figure 15 is a schematic diagram of an intermediate network node suppression port provided by an embodiment of the present application;

Figure 16 is a schematic diagram of another network architecture for emergency communication between multiple network devices provided by an embodiment of the present application;

Figure 17 is a schematic structural diagram of a communication scheduling device provided by an embodiment of the present application;

Figure 18 is a schematic structural diagram of a network device provided by an embodiment of the present application.

Detailed ways

First, the application scenarios involved in the embodiments of the present application are introduced with reference to the communication system structure shown in Figure 1 .

As shown in FIG. 1 , the communication system includes network device 110 , network device 120 , and network device 130 . The transmission medium between network devices can be wired transmission media such as cables, optical fibers, and plastic waveguides, or wireless transmission media such as microwaves and infrared rays. Through forwarding operations between multiple network devices, data exchange between the terminal and the control terminal, or data exchange between the terminal and the backbone network, can be realized. It can be understood that FIG. 1 only shows one possible communication system architecture to which embodiments of the present application can be applied. In other possible scenarios, the above communication system architecture may also include only some devices or other devices.

The network device 110 can be a physical server or a cloud device, such as an A virtual machine (VM) implemented in combination with Network Functions Virtualization (NFV) technology. A virtual machine refers to a complete computer system simulated by software with complete hardware system functions and running in a completely isolated environment. For example, virtual machines in cloud servers are not specifically limited in this application.

The network device 120 can specifically be a switch, router, gateway, bridge, server, repeater, etc., or can also be an evolved Node B (evolved Node B, eNB), a wireless network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (BTS), access point (AP) in the WIFI system, baseband unit (baseband unit , BBU), etc., it can also be the New Radio (NR) in the fifth generation mobile communication technology (5th Generation Mobile Communication Technology, 5G), the next generation Node B (gNodeB), etc. This application does not make specific limitations.

The network device 130 may specifically be a terminal. In some embodiments, the application scenario of the embodiments of the present application may be home network communication, and the terminal may be a mobile phone, a tablet, a computer, a smart watch, a virtual reality (VR) terminal device, or an augmented reality (AR) device. ) terminal equipment, as well as sweeping robots, rice cookers and other Internet of Things equipment, etc. This application does not make specific limitations. In some embodiments, the network device 110 can forward messages through the network device 120 to control the network device 130 or obtain data of the network device 130, etc.

In some embodiments, the application scenario of the embodiment of the present application may be an industrial equipment network. The network device 110 in the embodiment of the present application may be a control computer or server, and the network device 130 may be a robotic arm, a surveillance camera, or a temperature sensor. , laser sensor, three-machine controller, crusher, transfer machine, scraper conveyor, fully mechanized mining controller, coal digger, hydraulic support, etc. This application does not make specific limitations.

As shown in Figure 2, Figure 2 shows another communication system structure of the industrial equipment network, in which the remote controller and the auxiliary collection PC1 are connected to the router 2 and the router 4 through the router 1, and the router 2 is connected to the auxiliary collection PC2 and the router 3. Router 4 is connected to the auxiliary control PC1 and router 5, router 3 is connected to robotic arm 1, robotic arm 2 and surveillance cameras, and router 5 is connected to sensors and laser sensors. Furthermore, the auxiliary collection PC1 and the auxiliary collection PC2 can obtain the data of the robotic arm, surveillance camera, temperature sensor and laser sensor through the router 1-router 5; the auxiliary control PC1 You can obtain data from robotic arms, surveillance cameras, temperature sensors and laser sensors and control the above devices through Routers 1-Router 5; the remote controller can also obtain data from and control other devices through Routers 1-Router 5.

In other embodiments, the application scenario of the embodiment of the present application may also be an office network. The network device 130 in the embodiment of the present application may be a mobile phone, a computer, a surveillance camera, a printer, a web server, a database server, etc. It should be understood that the above examples are for illustration and do not constitute specific limitations.

Therefore, in the communication system structure as shown in Figure 1 or Figure 2, there is a situation where one network device is connected to multiple network devices. The device that connects multiple network devices can be called a master device, and other network devices can be called slave devices. equipment. The master device and the slave device can be connected directly or through a router or switch. The master device can also set the priority for the slave device. When receiving a message from a slave device with a high priority, the master device will give priority to the message from the slave device.

However, in the actual operation of network equipment, the demand for communication resources of network equipment will change with the progress of the operation. For example, in the industrial equipment network shown in Figure 2, when an item is transmitted to the robot arm 1, the robot arm 1 is required to operate the item. At this time, the communication of the robot arm 1 is more important. At this time, the robot arm 1 is needed. 1 has higher priority than other robot arms. However, when the item is transferred to the robot arm 2, the robot arm 2 is required to operate the item. At this time, the priority of the robot arm 2 is required to be higher than that of other robot arms. During this process, the priority of the slave device changes.

Therefore, in the actual operation of network equipment, the network equipment's demand for communication resources will change with the progress of the operation. Messages sent by network devices that are working or preparing to work often need to be processed as soon as possible so that corresponding response messages can be received as soon as possible so that the services of the network device can be executed on time. However, setting fixed priorities for network devices cannot meet actual operational needs.

For example, when the network device 110 needs to process packets from multiple network devices 130, when the working network device 130 has a lower priority, the packets sent by the network device 130 will be processed later by the network device 110, and further, the packets sent by the network device 130 will be processed later. The response message from the network device 110 is received later. When no response message is received, the network device 130 cannot perform the corresponding service, which ultimately affects the overall progress of the service and even causes a major accident. For another example, the working robot arm may miss the items on the conveyor belt because it does not receive the response message in time, which may cause the final product to fail; or, when the robot arm is executing an action, the control end detects that the robot arm It will collide with the wall, and a command to stop the robot arm is given. However, because the robot arm has a low priority, when the command reaches the robot arm, the robot arm may have already collided with the wall.

To sum up, the demand for communication resources of network equipment will change with the actual operating conditions. If fixed priorities are set for network equipment, communication resources cannot be reasonably allocated, which will lead to the failure of the network equipment's business to proceed normally.

In order to solve the problem that the above-mentioned network equipment's demand for communication resources will change with the actual operating conditions, resulting in the communication resources not being reasonably allocated, this application provides a communication scheduling method that can be based on the equipment type of the network equipment and the network equipment. Real-time job status sets network device priorities and allocates communication resources based on network device priorities.

In the communication scheduling method provided by this application, the first network device can obtain the device type and operation status of the connected network device; perform initial priority sorting according to the device type of the network device, and determine the first priority table, in which the device types of the same device type are The initial priorities of the network devices are the same; then the initial priorities are adjusted according to the working status of the network devices to obtain the final priorities of the network devices, and then the second priority table is determined based on the final priorities of all network devices. The first network device communicates with the connected network device based on the second priority list. When the first network device communicates with other network devices During communication, the priority of the session can also be determined based on the session type, and the response priority of the session is carried in the sent message, so that the peer network device can process the message according to the response priority. In addition, emergency communication can also be established between network devices. During the emergency communication process, the ports of network devices participating in emergency communication and other non-emergency communication network devices will be suppressed from communication until the emergency communication ends.

As shown in Figure 3, Figure 3 is a schematic flow chart of a communication scheduling method provided by this application. In this communication scheduling method, the network device 10 and the network device 20 can be in the communication system shown in Figure 1 or Figure 2. Internet equipment. The network device 10 is connected to the network device 20. The network device 10 and the network device 20 may be directly connected, or may be connected through network devices such as routers or switches. Network device 10 can also connect to other network devices. It should be understood that this application does not specifically limit the connection method of the network device 10 and the network device 20 . The network device 10 may also be called a first network device, and the network device 20 may also be called a second network device. The steps of this communication scheduling method are introduced in detail below.

S310: The network device 10 obtains the device type of the network device 20.

The network device 10 sends a message to obtain the device type of the network device 20 to the network device 20, and the network device 20 replies its device type to the network device 10. Network device 10 may obtain the device type from network device 20 when establishing a network connection with network device 20, or may obtain the device type from network device 20 after network device 20 sends a message to network device 10. The device type may also be that the network device 10 periodically obtains the device type from the network device 20 at a preset time, which is not specifically limited in this application.

The device type of the network device 20 is determined according to the job tasks performed by the network device 20 . For example, device types may include: motion control, status control, status sensing, user terminals, smart home appliances, etc. It should be understood that this application does not specifically limit the classification of device types of the network device 20 .

The following describes the device types of the network device 20 with examples based on application scenarios.

In an industrial equipment network, the device types of the network device 20 may include: motion control type, status control type, and status sensing type. Among them, the network equipment of the motion control type is used to perform motion tasks; the network equipment of the status control type is used to generate specific states, such as heating, cooling, increasing pressure, etc.; the network equipment of the status sensing type is used to perform acquisition tasks. Environmental status, such as temperature measurement, distance measurement, image collection and other tasks. For example, equipment such as robotic arms, transfer machines, and crushers belong to the motion control category, vacuum pumps, heating furnaces, booster pumps and other equipment belong to the status control category, and equipment such as cameras, temperature sensors, and laser sensors belong to the status sensing category.

In home network communication, the device types of the network device 20 may include: user terminals and smart home appliances. Smart home appliances can further include: motion control smart home appliances, status control smart home appliances, and status sensing smart home appliances. For example, mobile phones, smart watches, computers, etc. are user terminals, sweeping robots are motion control smart home appliances, refrigerators, rice cookers, and air conditioners are state control smart home appliances, and thermometers, cameras, etc. are state sensing smart home appliances.

In office network communication, the device types of the network device 20 may include: user terminals, office facilities, etc. Printers, fax machines, etc. are office facilities.

It should be understood that the classification of equipment types is determined based on the tasks that the equipment mainly performs. For example, a sweeping robot also includes a laser sensor. During its movement, it will move based on the data measured by the laser sensor, but it mainly cleans garbage by moving its position, which is a motion control task. Furthermore, the above examples are only for illustration and do not constitute specific limitations.

S320: The network device 10 determines the initial priority of the network device 20 according to the device type of the network device 20.

Each device type corresponds to its own initial priority level. Network devices of the same device type have the same initial priority. The network device 10 will first determine the initial priority of the network device 20 according to the device type.

The following is an example of the corresponding relationship between device type and initial priority level.

For example, in an industrial equipment network, the priority of motion control network equipment is higher than the priority of status control network equipment, and the priority of status control network equipment is higher than the priority of status sensing network equipment. In home network communication, the priority of user terminals is higher than the priority of smart home appliances. The priority of motion control smart home appliances is higher than the priority of status control smart home appliances. The priority of status control smart home appliances is higher than the priority of status transmission smart home appliances. The priority of sensor-type smart home appliances. In office network communications, user terminals have higher priority than office facilities. It should be understood that this application does not specifically limit the initial priority level corresponding to the device type.

In some embodiments, the network device 10 also obtains the device types of all network devices connected to the network device 10 . After the network device 10 obtains the device types of all network devices, it will also establish a first priority table. The first priority table is determined based on the device types of the network devices connected to the network device 10 . That is to say, the priorities of all network devices are sorted according to their device types. For the priority levels corresponding to the device types, refer to the above description and will not be described again here. The following is an example of how the network device 10 establishes the first priority table.

For example, network device 10 is also connected to network device 21, network device 22, network device 23 and network device 24, where network device 21 belongs to the motion control category, and network device 20, network device 22 and network device 24 belong to the status control category, Network device 23 belongs to the status sensing category, so the first priority table established by network device 10 can refer to Figure 4. As shown in Figure 4, the initial priority of network device 21 is higher than network device 20, network device 22 and network device 23. 24. The initial priorities of network device 20, network device 22 and network device 24 are the same, and the initial priorities of network device 20, network device 22 and network device 24 are higher than that of network device 23.

S330: The network device 10 obtains the job status of the network device 20.

The network device 10 sends a message to obtain the operation status of the network device 20 to the network device 20, and the network device 20 replies to the network device 10 with its operation status. The network device 10 may obtain the operation status of the network device 20 regularly, or may obtain the current operation status of the network device 20 after the operation status of the network device 20 changes or is triggered by the user. The job status is used to indicate whether the network device 20 is currently working. For example, the job status may include working, about to work, not working, etc., where the priority of the network device that is working is greater than the priority of the network device that is about to work. , that is, the priority of the network device that is being operated is greater than the priority of the network device that is not being operated. It should be understood that this application does not specifically limit the classification of job status. Alternatively, job status can also be divided according to the specific work performed.

The manner in which the network device 10 obtains the operation status of the network device 20 will be described in detail below.

Specifically, the network device 10 regularly sends a request to obtain the job status to the network device 20. After receiving the request, the network device 20 replies with the current job status according to the request. Or, the network device 10 sends a request to obtain the job status regularly to the network device 20, and the network device 20 will send the current job status to the network device 10 every fixed time. Alternatively, after the network device 10 obtains the job status request for the first time, the network device 20 then sends the current job status to the network device 10 when the job status of the network device 20 changes. Or, when the network device 10 or the network device 20 receives a user operation instruction, the network device 10 obtains the operation mode from the network device 20 according to the user operation instruction. It should be understood that this application does not specifically limit the manner in which the network device 10 obtains the operation status of the network device 20 .

In some embodiments, the operating status of the network device 20 is controlled by the network device 10. When the network device 10 adjusts the operating status of the network device 20, the network device 10 directly updates the adjusted operating status of the network device 20, It is no longer necessary to obtain the job status from the network device 20 . Alternatively, the network device 10 stores the operation time of the network device 20 , and the network device 10 can directly update the operation status of the network device 20 according to the operation time of the network device 20 .

S340: The network device 10 determines the target priority of the network device 20 based on the initial priority and job status of the network device 20.

The network device 10 adjusts the initial priority of the network device 20 according to the operating status of the network device 20 to obtain the target priority of the network device 20. The higher the target priority, the more priority the network device 10 will receive, send or process the network device 20. message. The network device 10 can adjust the initial priority higher or lower the preset ranking according to the job status of the network device 20 to obtain the target priority; or, while retaining the initial priority, perform secondary marking according to the job status to obtain the target. Priority, for example, the network device 20 may be a network device with the lowest job status type priority among network devices with a high device type priority.

In some embodiments, the network device 10 will also obtain the job status of all network devices connected to the network device 10 and establish a second priority table. The second priority table is connected to the network device 10 according to the first priority. To determine the operating status of each network device, refer to the confirmation process of the target priority of the network device 20, which will not be described again here.

The following is an example of how the network device 10 adjusts the initial priority of the network device 20 according to the job status and establishes a second priority table.

The network device 10 can adjust the initial priority higher or lower the preset ranking according to the working status of the network device 20 . For example, if there are N categories of device types, that is, there are N levels of initial priority, and the initial priority of the network device 20 is Mth, M is less than or equal to N, and M and N are positive integers. When the network device 20 is working, the priority of the network device 20 is increased by J positions, J is a positive integer; when the network device 20 is about to work, the priority of the network device 20 remains unchanged; when the network device 20 is not in the future When performing the operation, lower the priority of the network device 20 by K positions, where K is a positive integer. Among them, when J is greater than M, the target priority is the highest, and when K is greater than N-M, the target priority is the lowest.

For example, as shown in Figure 5A, network device 20, network device 22 and network device 24 have the same initial priority because they are of the same device type. However, because network device 20 is in the operating state, network device 22 is in the non-operating state. , other devices are in the waiting state, then the priority of the network device in the operating state is increased by two places, the priority of the network device in the non-operating state is lowered by two places, and the priority of other network devices remains unchanged. Therefore, the priorities in the final second priority table from high to low are: network device 20, network device 21, network device 24, network device 23, and network device 22.

The network device 10 can also remark the priority of the network device 20 according to the job status while retaining the initial priority to obtain the network device priority. Specifically: when the network device 20 is working, the target priority of the network device 20 is the highest among network devices of the same device type; when the network device 20 is about to work, the priority of the network device 20 is among the network devices of the same device type. Medium means medium; when the network device 20 is not performing operations, the priority of the network device 20 is the lowest among network devices of the same device type.

For example, as shown in Figure 5B, network device 20, network device 22 and network device 24 have the same initial priority because they are of the same device type. However, because network device 20 is operating and network device 24 is about to operate, the network If the device 22 is not working, the network device priorities in the final second priority table from high to low are: network device 21, network device 20, network device 24, network device 22, and network device 23.

In summary, by obtaining the device type and job status, this application can set the priority of the slave device connected to the master device, and obtain the priority table as shown in Figure 6, in which the slave device is device 1-device 8 as an example, the device type is Type 1 to Type 4 are taken as an example, and the job status is taken as Job 1 to Job 3. The process of generating the priority table shown in Figure 6 can refer to the above-mentioned descriptions about Figures 4 to 5B. In this way, the obtained priority table takes into account both the device type of the slave device and the job status of the slave device, so that when the master device communicates with the slave device, it can proceed based on the real-time job status of the slave device to meet the requirements of the slave device. Communication needs.

In other embodiments, the initial priority of the network device 20 can also be determined first according to the working status of the network device 20 , and then the initial priority can be adjusted according to the device type of the network device to obtain the target priority of the network device 20 . For example, when the job status includes working, about to be done, and not yet being done, the priority when the job is being done is greater than the priority when the job is about to be done, and the priority when the job is about to be done is greater than the priority when the job is not in progress. After determining the initial priority according to the working status of the network device 20, the initial priority is adjusted according to the device type of the network device 20. Specifically, the priority of the network device 20 can be adjusted among network devices with the same working status according to the device type. Alternatively, the initial priority may be adjusted higher or lower to a preset ranking according to the device type of the network device 20 .

In other embodiments, after performing step S310: the network device 10 obtains the device type of the network device 20, first perform step S330: the network device 10 obtains the job status of the network device 20, and then perform step S320: the network device 10 according to The device type of the network device 20 determines the initial priority of the network device 20, and step S340 is performed: the network device 10 determines the target priority of the network device 20 according to the initial priority and job status of the network device 20.

In other embodiments, after performing step S310: the network device 10 obtains the device type of the network device 20, step S330: the network device 10 obtains the operating status of the network device 20, and then based on the operating status of the network device 20, The initial priority of the network device 20 is determined, and finally the initial priority is adjusted according to the device type of the network device 20 to obtain the target priority of the network device 20 .

In other embodiments, after the network device 10 determines the target priority of the network device 20, it will receive data from the network device 20 and send messages to the network device 20 according to the target priority of the network device 20. When the network device 10 needs to send or receive data from multiple devices, the network device 10 will give priority to sending or receiving messages from the network device with a high target priority.

The process of the network device 10 receiving the message sent by the network device 20 will be described in detail below with reference to FIG. 7 .

S710: The network device 20 sends a request message to the network device 10.

When a session exists between the network device 20 and the network device 10 , the network device 20 may send a request message of the session to the network device 10 to obtain a response from the network device 10 . It should be understood that multiple sessions may exist between the network device 20 and the network device 10, and the network device 20 may send multiple request messages to the network device 10, and each request message carries a unique identifier of the corresponding session.

S720: The network device 10 determines whether to receive data from the network device 20 according to the target priority of the network device 20.

The network device 10 first determines whether it is currently receiving data from other network devices. If the network device 10 is not receiving data from other network devices, the network device 10 can currently receive data from the network device 20, and step S740 will be performed.

If the network device 10 is receiving or is about to receive data from other network devices, the network device 10 will also determine whether it can receive data from the network device 20 based on the target priority of the network device 20 . When the network device 10 is receiving or is about to receive data from a network device with a lower target priority than the network device 20, the network device 10 may currently receive the data from the network device 20 first, and step S740 will be performed. When the network device 10 is receiving or is about to receive data from a network device with a higher target priority than the network device 20, the network device 10 will receive the priority first. For data of higher-level network devices, step S730 is executed.

S730: The network device 10 receives data from a network device with a higher priority.

The first port of the network device 10 is connected to the second port of the network device 20. When the network device 10 cannot receive the message of the network device 20, it first receives the data of the network device with higher priority.

In some embodiments, when the network device 10 cannot receive the packet of the network device 20, it will also send a suppression instruction to the first port until the network device 10 has received the network device with a higher target priority than the network device 20. When the data is received, the first port is restored and the data of the network device 20 is received from the first port.

For example, as shown in Figure 8, the network device 10 may send a MAC control frame to the first port. The MAC control frame carries a PAUSE mark. The PAUSE mark may also carry a time parameter. The time parameter is used to indicate the time to suppress the first port. . When the network device 10 has received the data of the network device with a higher target priority than the network device 20, it sends a MAC control frame carrying the PAUSE flag to the first port. The time parameter carried by the PAUSE flag is 0, which is used to indicate stop. Inhibition of the first port.

S740: The network device 10 receives and processes the request message and obtains a response message.

When the network device 10 can receive the request message from the network device 20, it will receive the request message from the first port, process the request message, and generate a response message.

In some embodiments, the network device 20 and the network device 10 may also have multiple sessions. When the network device 20 sends a request to the network device 10 based on multiple sessions, the network device 10 will also determine the session type of each session. Prioritize requests. The network device 10 will first receive and process request messages with high request priority. Among them, the session type can include control session, query session and subscription session. The request priority corresponding to the session type from high to low is: control session, query session and subscription session. It should be understood that this application does not specifically limit the setting of session type and request priority.

S750: Network device 10 replies with a response message to network device 20.

After the network device 10 processes the request message, it will reply to the network device 20 with a response message. As shown in FIG. 9A , session 1 exists between network device 10 and network device 21 , session 2 exists between network device 10 and network device 20 , and session 3 exists between network device 10 and network device 24 . When the network device 10 determines to communicate with the network device 20, after receiving the request message 1 sent by the network device 20 based on the session 2, it processes the request message 1 according to the response priority of the session 2 and sends it to the network device 20. Reply to the response message 1 obtained after processing the request message.

In some embodiments, when there are multiple ongoing sessions between network device 20 and network device 10, network device 10 will generate multiple response messages based on multiple request messages sent by network device 20, and network device 10 will also generate multiple response messages based on each request message. The session type of each response message, determines its response priority, and replies to the response messages in sequence according to the response priority. Among them, the priorities of request messages and response messages of the same session type may also be different. For example, the response priorities corresponding to the session type from high to low are: query session, control session, subscription session, where, The query priority of the query session is lower than that of the control session, but the response priority of the query session is higher than that of the control session. That is to say, the network device 10 will receive and process the request message for the control session first, but may reply to the request message for the control session later. It should be understood that this application does not specifically limit the setting of session type and response message priority.

For example, as shown in FIG. 9B , session 1 exists between network device 10 and network device 21 , session 2 and session 4 exist between network device 10 and network device 20 , and session 3 exists between network device 10 and network device 24 . When network device 20 sends request message 1 and request message 2 to network device 10, because session 2 has a higher request priority, network device 10 will receive request message 1 first and then request message 2. Then, at the same time, network device 10 The internal processing of request message 1 and request message 2 is completed. Because the response priority of session 4 is high, response message 2 is sent first, and then response message 1 is sent.

To sum up, when the network device 10 receives data, it does so in accordance with the priority order of the peer network device. For network devices with low priority, the network device 10 can also suppress the ports connected to them, so that even if there are a large number of Even if the network device sends data to the network device 10 at the same time, the network device 10 will not be overloaded. Moreover, the network device 10 can also determine the response priority according to the session type. In this way, both the request message and the response message can be prioritized according to the session type, and the two-way communication can be carried out according to the priority, ensuring the two-way communication resources. can be done reasonably.

The process of the network device 10 sending a message to the network device 20 will be described in detail below with reference to FIG. 10 .

S1010: The network device 10 determines whether to send a request message to the network device 20 according to the target priority of the network device 20.

The network device 10 first determines whether it is currently sending data of other network devices. If the network device 10 is not sending data of other network devices, the network device 10 can currently send data to the network device 20, and step S1030 is about to be executed.

If the network device 10 is sending or is about to send data of other network devices, the network device 10 will also determine whether it can send data to the network device 20 based on the target priority of the network device 20 . When the network device 10 is sending or is about to send data of a network device with a lower target priority than the network device 20, the network device 10 can currently send data to the network device 20 first, and step S1030 will be performed. When the network device 10 is receiving or is about to receive data from a network device with a higher target priority than the network device 20, the network device 10 will first receive data from the network device with a higher priority, that is, step S1020 is performed.

S1020: The network device 10 sends data to a higher priority network device.

When the priority of the network device 20 is lower than that of other network devices, the network device 10 will first send the data of the network device with a higher priority. When the network device 10 has completed sending the data of the network device with a higher priority, the network device 10 will execute step S1030.

S1030: The network device 10 sends a request message to the network device 20, and the request message carries the response priority.

When the network device 20 is not sending data of other network devices, or has finished sending data of a network device with a higher priority, the network device 10 can send a request message to the network device 20 , and the request message carries the request message. The response priority of the session corresponding to the message is determined so that the network device 20 can respond to the request message according to the response priority. For details on the response priority, please refer to the relevant description in Figure 7 and will not be repeated here.

In some embodiments, the network device 10 and the network device 20 may also have multiple sessions. When the network device 10 needs to send multiple request messages to the network device 20, the network device 10 will also determine the request of each request message. Priority, request messages with higher request priority are sent first. For details on the session type and request priority, please refer to the relevant description in Figure 7 and will not be repeated here.

S1040: The network device 20 receives and processes the request message according to the response priority, and obtains a response message.

After receiving the request message, the network device 20 will process the request message and generate a response message.

In some embodiments, there are multiple sessions between the network device 10 and the network device 20. When the network device 20 receives multiple request messages, the network device 20 will also decide to process the request based on the response priority carried in the request message. The order of the packets, in which the network device 20 will prioritize request packets with high response priority.

S1050: The network device 20 replies with a response message to the network device 10.

After the network device 20 processes the request message, it will reply to the network device 10 with a response message.

In some embodiments, when there are multiple sessions between the network device 10 and the network device 20 and the network device 20 needs to reply to multiple response messages, the order of replying the response messages will also be determined based on the response priority.

In summary, when the network device 10 sends data to other network devices, the network device to send first will be determined according to the priority of the network device. Then, the order in which request messages are sent is determined based on the session type, and the response priority can also be carried in the request message, so that the peer network device can process and reply to the request message according to the response priority. In this way, both the request message and the response message can be prioritized according to the session type, and the two-way communication can be carried out according to the priority, ensuring that the two-way communication resources can be carried out reasonably.

In other embodiments, emergency communication can also be established between the network device 20 and the network device 10. For example, when the network device 20 needs to establish emergency communication with the network device 10, the network device 20 will initiate an emergency communication with the network device 10. The initial message of the communication, and suppresses the communication of other ports except the second port connected to the network device 10 . After receiving the emergency communication message, the network device 10 will also suppress communication on other ports except the first port to ensure that the communication resources between the network device 10 and the network device 20 are not occupied by other network devices.

The emergency communication between the network device 10 and the network device 20 will be described in detail below. For ease of explanation, the following takes the network device 20 initiating emergency communication to the network device 10 as an example. The network device 10 is connected to the second port of the network device 20 through the first port. It should be understood that the communication scheduling provided by this application In the method, any network device can initiate emergency communication. This application does not specifically limit the network device that initiates emergency communication.

When the network device 20 needs to establish emergency communication with the network device 10, the start message sent to the network device 10 may carry a start tag. The start tag is used to indicate that the network device 20 needs to establish emergency communication with the network device 10, where , the initial message can also carry the emergency communication duration.

When the initial packet carries only the initial mark, the process of emergency communication between the network device 20 and the network device 10 may refer to the method flow shown in Figure 11 .

S1110: The network device 20 suppresses communication on ports other than the second port.

As shown in FIG. 12 , the network device 20 may send a MAC control frame to other ports except the second port. The MAC control frame carries a PAUSE flag to indicate that the port is inhibited from receiving and sending data.

S1120: The network device 20 sends a start message to the network device 10, and the start message carries a start tag.

The start message sent by the network device 20 to the network device 10 carries a start tag, and the start tag is used to indicate to the network device 10 that the network device 20 needs to perform emergency communication.

In some embodiments, the network device 20 may send an initial message to the network device 10 and then suppress communications on other ports except the first port. That is to say, step S1120 is executed first, and then step S1110 is executed.

S1130: The network device 10 suppresses communication of other ports except the first port according to the start mark.

The network device 10 may send a MAC control frame to other ports except the first port, and the MAC control frame carries a PAUSE flag to indicate that the port is suppressed from receiving and sending data.

S1140: The network device 20 sends emergency communication data to the network device 10.

When the network device 20 continues to send emergency communication related messages to the network device 10 until the emergency communication data of the network device 20 is sent, the network device 20 will execute step S1150.

S1150: The network device 20 resumes communication with the port connected to other devices.

The network device 20 may send a MAC control frame to other ports except the first port. The MAC control frame carries a PAUSE mark, and the time parameter of the PAUSE mark is recorded as 0, which is used to end communication suppression on the port.

S1160: The network device 20 sends a termination message to the network device 10, and the termination message carries a termination mark.

The termination message sent by the network device 20 to the network device 10 carries a termination mark, and the termination mark is used to indicate the end of the emergency communication.

S1170: The network device 10 resumes communication with the port connected to other devices.

After receiving the termination message carrying the termination mark, the network device 10 will send a MAC control frame to other ports except the second port. The MAC control frame carries the PAUSE mark, and the time parameter of the PAUSE mark is recorded as 0, which is used to end the communication. Communication suppression for the port.

In some embodiments, the network device 10 and the network device 20 are connected through other intermediate network devices, for example, the network device 10 and the network device 20 are connected through a router or a switch. In the above steps and methods, the intermediate network device is used For forwarding messages. When the intermediate device receives the start message, it will also suppress communication except for the port connecting the network device 10 and the network device 20; when the intermediate device receives the termination message, it will resume communication on all ports.

When the initial message carries the initial mark and the emergency communication duration, the process of emergency communication between the network device 20 and the network device 10 may refer to the method flow shown in Figure 13 .

S1310: The network device 20 suppresses communication on other ports except the first port.

The network device 20 may send a MAC control frame to other ports except the first port. The MAC control frame carries a PAUSE flag and a time parameter used to indicate the suppression port to receive and send data. The time parameter is used to indicate the time to suppress the port.

S1320: Network device 20 sends a start message to network device 10, where the start message carries a start tag and emergency communication duration.

The start message sent by the network device 20 to the network device 10 carries a start tag and an emergency communication duration. The start tag is used to indicate to the network device 10 that the network device 20 needs to perform emergency communication, and the emergency communication duration is used to indicate this emergency communication. required time.

In some embodiments, the network device 20 may send an initial message to the network device 10 and then suppress communications on other ports except the first port. That is to say, step S1320 is executed first, and then step S1310 is executed.

S1330: The network device 10 suppresses the communication of other ports except the second port according to the start mark.

The network device 10 may send a MAC control frame to other ports except the second port. The MAC control frame carries a PAUSE flag and a time parameter to indicate the suppression port to receive and send data. The time parameter is used to indicate the time to suppress the port.

S1340: The network device 20 sends emergency communication data to the network device 10.

The network device 20 continuously sends emergency communication related messages to the network device 10 until the emergency communication duration is reached. After the emergency communication duration is reached, communication on all ports of the network device 10 and the network device 20 will also be restored.

In some embodiments, network device 10 and network device 20 are connected through other intermediate network devices, for example, network device 10 and network device 20 are connected through routers or switches, and the intermediate network device is used to forward messages. After the intermediate device receives the initial message, it will also suppress communication except for the port connecting the network device 10 and the network device 20; after the emergency communication time is reached, the communication on all ports will be restored.

As shown in Figure 14A, the start message sent by the network device 20 carries a start tag, and the network device 20 suppresses communication on other ports except those connected to the intermediate network device. After receiving the initial message, the intermediate network device will also suppress communications with ports connected to other devices and forward the initial message to the next intermediate network device until network device 10 receives the initial message. Then, the network device 20 sends the emergency communication data to the network device 10 through the intermediate network device. Until the emergency communication data is sent, the network device 20 sends a termination message to the network device 10 through the intermediate network node. The network device 20 resumes communication on other ports. After the intermediate network node and network device 10 receive the termination message, they will also resume communications on other ports.

As shown in Figure 14B, the start message sent by the network device 20 may also carry a start tag and emergency communication duration. Likewise, network device 20 suppresses communication on ports other than those connected to intermediate network devices. After the intermediate network device receives the initial message, it will parse the emergency communication duration, inhibit communication with the port connected to other devices, and forward the initial message to the next intermediate network device until network device 10 receives the initial message. Start message. Then, the network device 20 sends the emergency communication data to the network device 10 through the intermediate network device. When the emergency communication duration is reached, the network device 20 will automatically end the sending of the emergency communication data and resume communication on other ports. The intermediate network device and network device 10 will also automatically resume communication on other ports after receiving the emergency communication duration of the initial message.

Figure 15 illustrates a schematic diagram of an intermediate network node suppressing other ports during emergency communication. The intermediate network node will reserve the ports with the emergency communication equipment, that is, the ingress/egress port and the ingress/egress port, and send MAC control frames to other ports. The MAC control frame carries the PAUSE flag.

The following is an example of emergency communication with reference to Figure 16. When the surveillance camera and the remote controller need to communicate in an emergency, the surveillance camera will perform the following steps when initiating emergency communication to the remote controller:

S1601: The surveillance camera sends an initial message to Router 3.

Among them, the initial message sent by the surveillance camera to the router 3 carries the emergency communication flag, or carries the emergency communication flag and the emergency communication duration.

S1602: Router 3 forwards the initial message to Router 2 and suppresses communication with the ports of Robot 1 and Robot 2.

S1603: Router 2 forwards the initial message to Router 1 and suppresses communication with the port of auxiliary collection PC2.

S1604: Router 1 forwards the initial message to the remote controller and suppresses communication with the port of the auxiliary collection PC1.

Then, the surveillance camera and the remote controller conduct emergency communication through Router 1, Router 2, and Router 3. The emergency communication will not end until the surveillance camera sends a termination message to the remote controller, or the emergency communication duration is reached. At this time, Router 3 will resume its ports with Robot Arm 1 and Robot Arm 2, and Router 2 will resume its connection with the auxiliary collection PC2. Port, Router 1 will restore the port of PC1 with secondary collection.

In summary, the communication scheduling method provided by this application can update the priority of the network device in real time by obtaining the device type and real-time job status, and allocate communication resources to the network device according to the real-time updated priority, which can better meet the needs of real-time jobs. need. Moreover, by carrying the response priority in the request message, the peer network device can process the request message according to the response priority, so that two-way communication can be carried out according to the priority. The communication scheduling method provided by this application can also suppress communication at the ports connecting network equipment and non-emergency communication equipment during emergency communication, so that the communication data of other devices will not occupy communication resources, and ensure that emergency communication data can be prioritized. Send and receive.

In order to solve the problem that the demand for communication resources of the above-mentioned network equipment changes with the actual operating conditions, resulting in the communication resources not being reasonably allocated, the present application provides a communication scheduling device 1700, which can be based on the equipment type of the network equipment and the network. The real-time operating status of the device sets the priority of the network device and allocates communication resources according to the priority of the network device. As shown in Figure 17, the communication scheduling device 1700 includes: an obtaining unit 1710 and a determining unit 1720.

The obtaining unit 1710 is used to obtain the device type and operation status of at least one network device connected to the first network device; wherein the at least one network device includes a second network device; the determining unit 1720 is used to obtain the device type and operation status of at least one network device according to the device type of the at least one network device. Determine the first priority table, which includes the initial priority of at least one network device, wherein the initial priorities of network devices with the same device type are the same; the determining unit 1720 is also used to determine the second The initial priority of the network device is determined, and the target priority of the second network device is determined based on the job status of the second network device and the initial priority of the second network device in the first priority table.

In some embodiments, the determining unit 1720 is further configured to update the first priority table to the second priority table according to the target priority of the second network device.

In some embodiments, the second priority table is determined by re-sorting the network devices with the same initial priority in the first priority table according to the priority corresponding to the job status; or, the second priority table is determined by sorting each The initial priority of network devices is determined according to the preset ranking corresponding to the job status of each network device.

In some embodiments, the apparatus further includes a sending unit 1730; the determining unit 1720 is further configured to determine whether to communicate with the second network device according to the second priority table; the sending unit 1730 is configured to determine whether to communicate with the second network device. When, a first request message is sent to the second network device, the first request message carries a response priority, and the response priority is used by the second network device to determine the time to respond to the first request message.

In some embodiments, the device further includes a receiving unit 1740; the determining unit 1720 is further configured to determine whether to communicate with the second network device according to the second priority table; the receiving unit 1740 is configured to determine whether to communicate with the second network device when when, receiving the second request message sent by the second network device; the determining unit 1720 is also configured to determine the response priority of the second request message according to the second request message, and the response priority of the second request message is based on The session type of the second request message is determined.

In some embodiments, there are multiple sessions before the first network device and the second network device. The obtaining unit 1710 is also used to obtain the session types of the multiple sessions; the determining unit 1720 is also used to obtain the session types from the multiple sessions according to the session type. Determine the target session. The target session is determined based on the request priority corresponding to the session type in multiple sessions. The request priority corresponding to the session type is used to indicate the order in which session request messages are sent.

In some embodiments, the first port of the first network device is connected to the second port of the second network device; the receiving unit 1740 is also configured to receive an initial message sent by the second network device, where the initial message carries emergency communication. The start tag; determination unit 1720 is also configured to suppress communication on other ports except the first port according to the start message.

In some embodiments, the receiving unit 1740 is also configured to receive a termination message sent by the second network device, where the termination message carries an emergency communication termination flag; the determining unit 1720 is also configured to restore other ports except the first port according to the termination message. Port communication.

In some embodiments, the initial message also carries an emergency communication duration, and the emergency communication duration is used to indicate the communication suppression duration of other ports except the first port.

In some embodiments, the device types include: motion control class, status control class and status sensing class, where the initial priority of the device type corresponding to the network device from high to low is: motion control class, status control class, status sensing class Sense type; the job status includes: working, preparing to work, and not working in progress. Among them, the priority corresponding to the job status from high to low is: working in progress, preparing to work, and not working in progress.

In some embodiments, session types include: control session, query session, and subscription session, where the request priorities corresponding to the session types from high to low are: control session, query session, and subscription session. , the response priority corresponding to the session type from high to low is: query session, control session, subscription session.

In summary, the communication scheduling device provided by this application can update the priority of the network equipment in real time by obtaining the device type and real-time operation status, and allocate communication resources to the network equipment according to the real-time updated priority, which can better meet the needs of real-time operations. need. Moreover, by carrying the response priority in the request message, the peer network device can process the request message according to the response priority, so that two-way communication can be carried out according to the priority. The communication scheduling method provided by this application, It can also suppress communication at the ports connecting network equipment and non-emergency communication equipment during emergency communications, so that the communication data of other devices will not occupy communication resources, ensuring that emergency communication data can be sent and received first.

The methods of the embodiments of the present application are described in detail above. In order to facilitate better implementation of the above solutions of the embodiments of the present application, correspondingly, the following also provides relevant equipment for cooperating with the implementation of the above solutions.

Figure 18 is a schematic structural diagram of a computing device 1800 provided by this application. The computing device 1800 may be the communication scheduling device 1800 in the aforementioned content. As shown in Figure 9, network device 1800 includes: a processor 1810, a communication interface 1820, and a memory 1830. Among them, the processor 1810, the communication interface 1820 and the memory 1830 can be connected to each other through the internal bus 1840, or can communicate through other means such as wireless transmission. The embodiment of this application takes the connection through bus 1840 as an example. The bus 1840 can be a Peripheral Component Interconnect Express (PCIe) bus, an extended industry standard architecture (EISA) bus, a unified bus ( unified bus, Ubus or UB), computer express link (compute express link, CXL), cache coherent interconnect for accelerators (CCIX), etc. Bus 1840 can be divided into address bus, data bus, control bus, etc. In addition to the data bus, the bus 1840 may also include a power bus, a control bus, a status signal bus, etc. However, for the sake of clarity, the various buses are labeled bus 1840 in the figure.

The processor 1810 may include at least one general-purpose processor, such as a central processing unit (Central Processing Unit, CPU), or a combination of a CPU and a hardware chip. The above-mentioned hardware chip can be an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), a programmable logic device (Programmable Logic Device, PLD), or a combination thereof. The above-mentioned PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (Field-Programmable Gate Array, FPGA), a general array logic (Generic Array Logic, GAL), or any combination thereof. Processor 1810 executes various types of digital storage instructions, such as software or firmware programs stored in memory 1830, that enable computing device 900 to provide a variety of services.

The memory 1830 is used to store program codes, and is controlled and executed by the processor 1810 to perform the processing steps of the communication scheduling method in the above embodiment. The program code may include one or more software modules. The one or more software modules may be the software modules provided in the embodiment of Figure 17, such as an acquisition unit and a determination unit: the acquisition unit is used to obtain the information connected to the first network device. The device type and working status of at least one network device; wherein at least one network device includes a second network device; the determining unit is configured to determine a first priority table according to the device type of at least one network device, and the first priority table includes at least The initial priority of a network device, wherein network devices with the same device type have the same initial priority; the determination unit is also used to determine the initial priority of the second network device, and determine the initial priority of the second network device according to the working status of the second network device and the first priority. The initial priority of the second network device in the level table determines the target priority of the second network device.

It should be noted that this embodiment can be implemented by a general-purpose physical server, such as an ARM server or an A complete computer system with complete hardware system functions and running in a completely isolated environment is not specifically limited in this application.

The memory 1830 may include volatile memory (Volatile Memory), such as random access memory (Random Access Memory, RAM); the memory 1830 may also include non-volatile memory (Non-Volatile Memory), such as read-only memory (Read-Only Memory). Only Memory (ROM), flash memory (Flash Memory), hard disk (Hard Disk Drive (HDD) or solid-state drive (Solid-State Drive, SSD); the memory 1830 may also include a combination of the above types. The memory 1830 may store program codes to specifically execute steps S310 to S340 and their optional steps in the embodiment of FIG. 3, or execute steps S710 to S750 and their optional steps in the embodiment of FIG. 7, or, FIG. Step S1010 to step S1050 and their optional steps in the embodiment of 10, or step S1110 to step S1170 and their optional steps in the embodiment of Fig. 11, or step S1310 to step S1340 and their optional steps in the embodiment of Fig. 13 Optional steps will not be described here.

The communication interface 1820 may be a wired interface (such as an Ethernet interface), an internal interface (such as a high-speed serial computer expansion bus (Peripheral Component Interconnect express, PCIe) bus interface), a wired interface (such as an Ethernet interface), or a wireless interface ( such as a cellular network interface or using a wireless LAN interface) for communicating with other devices or modules.

It should be noted that Figure 18 is only a possible implementation manner of the embodiment of the present application. In actual applications, the network device 1800 may also include more or fewer components, which is not limited here. For contents not shown or described in the embodiments of the present application, please refer to the relevant explanations in the embodiments of FIG. 3 , FIG. 7 , FIG. 10 , FIG. 11 and FIG. 13 , and will not be described again here.

It should be understood that the computing device shown in Figure 18 can also be a computer cluster composed of at least one server, which is not specifically limited in this application.

Embodiments of the present application also provide a computer-readable storage medium. Instructions are stored in the computer-readable storage medium. When it is run on a processor, the instructions shown in Figure 3, Figure 7, Figure 10, Figure 11 and Figure 13 The method flow is realized.

Embodiments of the present application also provide a computer program product. When the computer program product is run on a processor, the method flows shown in Figures 3, 7, 10, 11 and 13 are implemented.

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on a computer, the processes or functions described in accordance with the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, Digital Subscriber Line, DSL) or wireless (such as infrared, wireless, microwave, etc.) methods. The computer Readable storage media can be any available media that can be accessed by a computer or data storage devices such as servers and data centers that contain one or more sets of available media. The available media can be magnetic media (for example, floppy disks, hard disks, tapes ), optical media (for example, high-density digital video disc (DVD)), or semiconductor media. The semiconductor media can be SSD.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent methods within the technical scope disclosed in the present invention. Modifications or substitutions shall be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A communication scheduling method, characterized in that it is applied to a first network device and includes:

Obtain the device type and operating status of at least one network device connected to the first network device; wherein the at least one network device includes a second network device;

Determine a first priority table according to the device type of the at least one network device. The first priority table includes the initial priority of the at least one network device, wherein the initial priorities of network devices with the same device type are the same. ;

Determine the initial priority of the second network device, and determine the target of the second network device according to the job status of the second network device and the initial priority of the second network device in the first priority table priority.
The method of claim 1, further comprising:

The first priority table is updated to a second priority table according to the target priority of the second network device.
The method according to claim 2, characterized in that:

The second priority table is determined by re-sorting the network devices with the same initial priority in the first priority table according to the priority corresponding to the job status; or,

The second priority table determines the initial priority of each network device according to the preset ranking corresponding to the operating status of each network device.
The method according to any one of claims 2 or 3, characterized in that, the method further includes:

Determine whether to communicate with the second network device according to the second priority table;

When it is determined to communicate with the second network device, a first request message is sent to the second network device. The first request message carries a response priority, and the response priority is used for the second network device. The network device determines the time to respond to the first request message.
The method according to any one of claims 2 or 3, characterized in that, the method further includes:

Determine whether to communicate with the second network device according to the second priority table;

When it is determined to communicate with the second network device, receive a second request message sent by the second network device;

The response priority of the second request message is determined according to the second request message, and the response priority of the second request message is determined according to the session type of the second request message.
The method according to claim 4 or 5, characterized in that there have been multiple sessions between the first network device and the second network device, and the determining to communicate with the second network device includes: :

Obtain the session types of the multiple sessions;

According to the session type, a target session is determined from the plurality of sessions, the target session is determined according to the request priority corresponding to the session type in the multiple sessions, and the request priority corresponding to the session type is used to Instructions to send The sequence of session request messages.
The method according to any one of claims 2 or 6, characterized in that the method further includes:

Determine whether there is an emergency communication status;

Based on the emergency state, determining emergency communication with the second network device;

And, after the emergency state is lifted, it is determined according to the second priority table whether to communicate with the second network device.
The method according to claim 7, characterized in that the first port of the first network device is connected to the second port of the second network device, and the method further includes:

Receive a start message sent by the second network device, where the start message carries an emergency communication start tag, and the start tag is used to indicate the start of the emergency state;

According to the initial message, communication on other ports except the first port is suppressed.
The method according to claim 7, further comprising:

Receive a termination message sent by the second network device, the termination message carries an emergency communication termination mark, and the termination mark is used to indicate that the emergency state is lifted;

According to the termination message, communication on the other ports except the first port is restored.
The method according to claim 8, characterized in that the initial message also carries an emergency communication duration, and the emergency communication duration is used by the first network device to determine the communication of other ports except the first port. Inhibition duration.
The method according to any one of claims 1 to 10, characterized in that,

The device types include: motion control class, status control class and status sensing class, where the initial priorities of the network devices corresponding to the device types from high to low are: motion control class, status control class, status sensing class ;

The job status includes: working in progress, preparing to work, and not working in progress, wherein the priority corresponding to the job status from high to low is: working in progress, preparing to work, and not working in progress.
The method according to any one of claims 5 to 11, characterized in that,

The session types include: control session, query session, and subscription session. The request priority corresponding to the session type from high to low is: control session, query session, and subscription session. The session The response priorities corresponding to the types from high to low are: query session, control session, and subscription session.
A communication scheduling device, characterized in that it is applied to a first network device and includes: an acquisition unit and a determination unit;

The obtaining unit is used to obtain the device type and operating status of at least one network device connected to the first network device; wherein the at least one network device includes a second network device;

The determining unit is configured to determine a first priority table according to the device type of the at least one network device, the The first priority table includes the initial priority of the at least one network device, wherein network devices with the same device type have the same initial priority;

The determining unit is also configured to determine the initial priority of the second network device, and determine the initial priority of the second network device based on the job status of the second network device and the initial priority of the second network device in the first priority table. The target priority of the second network device.
A network device, characterized in that it includes a processor and a memory, the memory is used to store instructions, the processor is used to execute the instructions, and when the processor executes the instructions, the instructions from claims 1 to 1 are executed. The method described in any one of 12.
A computer program product, characterized in that the computer program product includes computer instructions, and when executed by a network device, the computing device executes the method according to any one of claims 1 to 12.
A computer-readable storage medium, characterized by comprising instructions that, when the instructions are run on a network device, cause the network device to perform the method according to any one of claims 1 to 12.