CN118828796A - A communication networking method, device and system - Google Patents

Abstract

The present invention discloses a communication networking method, device and system, the method comprising: when the business communication device is in a non-networked state, obtaining several working parameters of the gateway device itself broadcast by all the currently scanned gateway devices; calculating the availability quantification value of the gateway device according to the working parameters; determining the target gateway device according to the gateway device corresponding to the availability quantification value that meets the preset threshold requirements; sending a networking request to the target gateway device to establish a networking connection between the business communication device and the target gateway device, and the business communication device realizes communication with the server by connecting to the gateway device for networking. The present invention can increase the signal coverage of the communication networking system and improve the stability of network transmission.

Description

A communication networking method, device and system

Technical Field

The present invention relates to the field of communication technology, and in particular to a communication networking method, device and system.

Background Art

With the rapid development of new energy technology, electric vehicles, as a green means of transportation with broad development prospects, are becoming more and more popular. With the increasing number of electric vehicles, the demand for vehicle charging piles as charging equipment for electric vehicles is also increasing.

The current charging pile system includes a gateway device and a number of common charging piles. The common charging piles are networked with the gateway device through a 433MHz wireless network, and interact with the application platform through the gateway device.

However, the inventors have found that the prior art has at least the following problems: the existing networking solutions mostly adopt a star network consisting of a single gateway device and several ordinary charging piles, which has the problem of limited signal coverage. In addition, in complex working environments, such as severe electromagnetic interference or severe signal blocking, the gateway device signal quality may be poor or even unavailable, causing the charging pile to fail to work properly.

Summary of the invention

The purpose of the embodiments of the present invention is to provide a communication networking method, device and system, which can increase the signal coverage of the communication networking system and improve the stability of network transmission.

To achieve the above-mentioned purpose, an embodiment of the present invention provides a communication networking method, which is applied to a service communication device side, wherein the service communication device realizes communication with a server side by connecting to a gateway device for networking;

The method comprises:

When the service communication device is in a non-networked state, obtaining several working parameters of the gateway device itself broadcasted by all the currently scanned gateway devices;

Calculate the availability quantification value of the gateway device according to the working parameter;

Determine the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement;

A networking request is sent to the target gateway device to establish a networking connection between the service communication device and the target gateway device.

As an improvement of the above solution, the several working parameters include working temperature, communication signal strength with the server, communication signal strength with the business communication device and the number of networked business communication devices.

As an improvement of the above solution, the calculating the availability quantization value of the gateway device according to the working parameter includes:

The quantized value and the preset weight value of each of the working parameters are determined to calculate the quantized value of the availability of the gateway device.

As an improvement of the above solution, the step of determining a quantized value and a preset weight value of each of the working parameters to calculate a quantized value of the availability of the gateway device includes:

According to the correspondence between the preset range of working parameters and the quantized values, determining the quantized value corresponding to the range of each working parameter currently located;

Determine the weight value corresponding to each of the current working parameters according to the corresponding relationship between the preset working parameters and the weight value;

The availability quantification value is calculated by weighted summing according to the quantified value and weight value of each working parameter.

As an improvement of the above scheme, the closer the range of the working parameter is to the preset normal range, the smaller the quantized value corresponding to the working parameter is; the worse the environmental factors affecting the working parameter are, the larger the weight value corresponding to the working parameter is; then the preset threshold requirement is: the availability quantized value is the minimum;

Then, determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement includes:

According to the availability quantization values of all the gateway devices, a gateway device corresponding to the minimum availability quantization value is determined as the target gateway device.

As an improvement of the above solution, the step of determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement includes:

According to the availability quantization values of all the gateway devices, determine a gateway device corresponding to an availability quantization value that meets a preset threshold requirement as a candidate gateway device;

When the number of the candidate gateway devices is one, taking the candidate gateway device as the target gateway device;

When the number of the candidate gateway devices is more than one, a target gateway device is determined from the candidate gateway devices according to specific working parameters of the candidate gateway devices.

As an improvement of the above solution, the method further includes:

When the service communication device is in a networking state, an inquiry message is sent to a networked gateway device at a preset time interval; wherein the inquiry message is used to trigger the networked gateway device to return a reply message on whether a gateway switching is required;

When a reply message indicating the need to switch gateways is received from the networked gateway device, the network connection between the service communication device and the networked gateway device is disconnected, and the following steps are performed again: when the service communication device is in a non-networked state, several working parameters of the gateway device itself broadcast by all the gateway devices in the current local area network are obtained.

The embodiment of the present invention also provides a communication networking method, which is applied to the gateway device side, and the service communication device realizes communication with the service end by connecting to the gateway device to form a network;

The method comprises:

When the gateway device is in a normal working state, it broadcasts several current working parameters of itself on the selected channel; when the service communication device is in a non-networked state, it can calculate the availability quantization value of the gateway device according to the working parameters broadcast by all the gateway devices, determine the gateway device corresponding to the availability quantization value that meets the preset threshold requirement as the target gateway device, and send a networking request to the target gateway device;

When a networking request sent by a service communication device is received, a networking connection between the service communication device and the gateway device is established.

As an improvement of the above solution, the method further includes:

When the gateway device is in an abnormal working state, the network connection between the gateway device and the networked business communication device is disconnected; wherein the abnormal working state is that the working temperature of the gateway device is abnormal or the communication signal between the gateway device and the server is abnormal.

As an improvement of the above solution, the method further includes:

When the number of networked service communication devices of the gateway device reaches a first preset number, selecting a second preset number of service communication devices from the networked service communication devices as selected service communication devices; wherein the second preset number is less than the first preset number;

When an inquiry message is received from a networked business communication device, and the business communication device sending the inquiry message is the selected business communication device, a reply message indicating the need to switch gateways is returned to the business communication device sending the inquiry message; the selected business communication device can disconnect its network connection with the gateway device upon receiving the reply message indicating the need to switch gateways.

The embodiment of the present invention further provides a communication networking device, which is applied to a service communication device side, wherein the service communication device realizes communication with a service end by connecting to the gateway device to form a network;

The device comprises:

A working parameter acquisition module, used for acquiring, when the service communication device is in a non-networked state, a plurality of working parameters of the gateway device itself broadcast by all the currently scanned gateway devices;

An availability quantification value calculation module, used to calculate the availability quantification value of the gateway device according to the working parameters;

A target gateway device determination module is used to determine the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement;

The first networking connection module is used to send a networking request to the target gateway device to establish a networking connection between the service communication device and the target gateway device.

The embodiment of the present invention also provides a communication networking device, which is applied to the gateway device side, and the service communication device realizes communication with the service end by connecting to the gateway device to form a network;

The device comprises:

A working parameter broadcasting module, used to broadcast several current working parameters of the gateway device on a selected channel when the gateway device is in a normal working state; when the service communication device is in a non-networked state, the service communication device can calculate the availability quantization value of the gateway device according to the working parameters broadcast by all the gateway devices, determine the gateway device corresponding to the availability quantization value that meets the preset threshold requirement as the target gateway device, and send a networking request to the target gateway device;

The second networking connection module is used to establish a networking connection between the service communication device and the gateway device when receiving a networking request sent by the service communication device.

An embodiment of the present invention also provides a communication networking device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the communication networking method as described in any one of the above items is implemented.

An embodiment of the present invention also provides a communication networking system, including a server, several gateway devices and several business communication devices, wherein the business communication devices communicate with the server by connecting to the gateway devices to form a network; and the business communication devices include the communication networking device as described above applied to the business communication device side; the gateway device includes the communication networking device as described above applied to the gateway device side.

Compared with the prior art, the communication networking method, device and system disclosed in the present invention, by adding limited redundant gateway devices in the system, all business communication devices are not fixedly connected to a single gateway device, each business communication device can calculate the corresponding availability quantification value according to the working parameters of each gateway device, so as to select the gateway device that meets the requirements to establish a networking connection, thereby improving the reliability, robustness and signal coverage of the communication networking system, effectively avoiding the inability of multiple device terminals to carry out business processes normally due to individual communication anomalies of gateway devices in the self-organizing network, and improving the fault tolerance of the communication networking system. At the same time, the availability of the communication networking system is improved, the MCU processing pressure of each gateway device is effectively balanced, and the operation efficiency of the entire communication networking system is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a flow chart of a communication networking method provided by an embodiment of the present invention;

FIG2 is a schematic diagram of the structure of a charging pile system according to an embodiment of the present invention;

3 is a schematic diagram of data flow of a charging pile system according to an embodiment of the present invention;

4 is a flow chart of another communication networking method provided by an embodiment of the present invention;

5 is a schematic diagram of the structure of a communication networking device provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the structure of another communication networking device provided by an embodiment of the present invention.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the specification and claims, it is to be understood that the terms first, second, etc. in the specification and claims are only used for the purpose of describing the same technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor necessarily describing the order or time sequence. The terms are interchangeable where appropriate. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

Refer to Figure 1, which is a flow chart of a communication networking method provided by an embodiment of the present invention. An embodiment of the present invention provides a communication networking method, which is applied to the business communication device side. The business communication device communicates with the server by connecting to the gateway device for networking.

The method specifically comprises steps S11 to S14:

S11, when the service communication device is in a non-networked state, obtaining several working parameters of the gateway device itself broadcasted by all the currently scanned gateway devices;

S12. Calculating a quantitative value of the availability of the gateway device according to the working parameters;

S13, determining a target gateway device according to a gateway device corresponding to an availability quantization value that meets a preset threshold requirement;

S14. Send a networking request to the target gateway device to establish a networking connection between the service communication device and the target gateway device.

In an embodiment of the present invention, the communication networking system includes the server, several business communication devices and several gateway devices, wherein multiple business communication devices and multiple gateway devices form multiple star-shaped self-organizing networks, and data interaction with the server is realized through the gateway device. The business communication device refers to a communication device used to realize various business functions, such as a charging pile device that realizes a charging business function, a telephone communication device that realizes a video call function, etc., and the business communication device needs to establish data interaction with the server through a gateway device. The server is not limited to a cloud server, etc. Among them, the business communication device, the gateway device and the server interact with each other by wireless communication. The communication method between the business communication device and the gateway device preferably adopts a wireless communication method with strong penetration ability, rapid networking and wide coverage. Specifically, the wireless communication method in the prior art can be adopted according to the actual application scenario and requirements, and no specific limitation is made here.

Furthermore, the communication networking method provided by the embodiment of the present invention is described in detail below. During normal operation, each of the gateway devices will select at least one channel from several preset channels for information broadcasting, and broadcast its current several working parameters. The working parameters are working parameters that affect the reliability of the networking connection between the service communication device and the gateway device.

During the normal operation of the business communication device, if a networking connection with a gateway device is not established, the service communication device will perform channel scanning through several preset channel frequencies to obtain the broadcast information of all scanned gateway devices in the current local area network and store it. Then, based on the working parameters of all the scanned gateway devices, the current availability of the gateway device is evaluated, and the availability quantification value of the gateway device is calculated. The availability quantification value is used to characterize the current availability of the gateway device. Then, the gateway device corresponding to the availability quantification value that meets the preset threshold requirements is obtained, so as to determine the gateway device with the highest availability as the target gateway device, and send a networking request to the target gateway device to establish a networking connection between the service communication device and the target gateway device. After that, the service communication device can establish data interaction with the server through networking with the target gateway device.

When the gateway device to which the business communication device is networked suddenly loses connection or an abnormality occurs, and the self-networking is disconnected, the business communication device returns to the unnetworked state, re-scans the channels, obtains the working parameters of the gateway device in the local area network, and re-determines the target gateway device for networking.

By adopting the technical means of the embodiment of the present invention, by adding limited redundant gateway devices to the system, all business communication devices are not fixedly connected to a single gateway device, and each business communication device can calculate the corresponding availability quantification value according to the working parameters of each gateway device, thereby selecting a gateway device that meets the requirements to establish a networking connection, thereby improving the reliability, robustness and signal coverage of the communication networking system, effectively avoiding the inability of multiple device terminals to carry out business processes normally due to individual communication anomalies of gateway devices in the self-organizing network, and improving the fault tolerance of the communication networking system. At the same time, the availability of the communication networking system is improved, the MCU processing pressure of each gateway device is effectively balanced, and the operating efficiency of the entire communication networking system is improved.

As a preferred implementation, the several operating parameters include operating temperature, communication signal strength with the server, communication signal strength with the business communication device, and the number of networked business communication devices.

The technical means of the embodiments of the present invention fully consider the current operating temperature of all gateway devices, the communication signal strength with the server, the communication signal strength with the business communication device, the number of networked business communication devices and other working parameters, so as to accurately evaluate the availability of the gateway devices and improve the calculation accuracy of the quantification value of the availability of the gateway devices.

Taking the charging pile system as an example, see Figures 2 and 3. Figure 2 is a schematic diagram of the structure of the charging pile system in an embodiment of the present invention, and Figure 3 is a schematic diagram of the data flow of the charging pile system in an embodiment of the present invention. The business communication device is configured as an ordinary charging pile, the gateway device is configured as a gateway charging pile, and the server is configured as an application cloud platform. The charging pile system includes an application cloud platform, a user applet, a number of ordinary charging piles and a number of gateway charging piles, wherein a plurality of ordinary charging piles and a plurality of gateway charging piles form a plurality of star-shaped self-organizing networks, and data interaction with the application cloud platform and the user applet is realized through the gateway charging pile. The ordinary charging pile and the gateway charging pile are connected to each other using a 433MHz wireless network. The 433MHz wireless network has the characteristics of strong penetration, rapid networking and wide coverage. 4G cellular communication is used between the gateway charging pile and the server.

Among them, the ordinary charging pile includes a main control unit, a radio frequency control module and a charging service module, wherein the main control unit is responsible for the overall scheduling of the entire charging pile, including storage, timing, peripheral management, etc. The charging service module is the actual service control module of the charging pile, such as charging control, metering, etc., and the radio frequency control module provides a 433MHz self-organizing network for the charging pile system. The gateway charging pile includes a main control unit, a radio frequency module, a charging service module, a temperature sensing module and a 4G cellular communication module. Among them, the main control unit is responsible for the overall scheduling of the entire charging pile, including storage, timing, peripheral management, etc. The radio frequency control module provides 433MHz self-organizing network support. The charging service module is responsible for the actual charging service management of the charging pile; the temperature sensing module monitors the current working temperature of the charging pile system in real time to avoid abnormal charging pile services due to excessive temperature; the 4G cellular communication module is responsible for the cellular communication between each independent self-organizing network system and the service platform. The application cloud platform is responsible for the status management of all charging pile equipment, charging service billing and control instruction issuance, etc. The application platform will also record and update the networking relationship between each gateway and each ordinary charging pile so that the control instruction can be issued correctly. The user applet is responsible for functions such as user charging service initiation, billing and settlement.

During the application process, each of the gateway charging piles will select at least one channel from several preset channels for information broadcast during normal operation, and broadcast several of its current working parameters, including working temperature, 4G cellular signal strength, 433MHz signal strength, the number of networked ordinary charging piles, whether there is a charging load on the gateway device, etc.

During normal operation, the ordinary charging pile will perform channel scanning through several preset channel frequencies, obtain and store the broadcast information of all scanned gateway charging piles in the current local area network, evaluate the current availability of the gateway charging pile according to the working parameters of all the gateway devices, calculate the quantified value of the availability of the gateway charging pile, thereby determining the gateway charging pile with the highest availability as the target gateway charging pile, and establish a networking connection with the target gateway charging pile, and then establish data interaction with the application cloud platform and the user applet through the target gateway charging pile.

It should be noted that the above charging pile system is used as an example for the communication networking system only. In actual applications, the communication networking system can also be a system structure to achieve other business needs, which does not affect the beneficial effects achieved by the present invention.

As a preferred implementation, an embodiment of the present invention is further implemented on the basis of any of the above embodiments, step S12, that is, calculating the quantization value of the availability of the gateway device according to the working parameters, includes: determining the quantization value of each of the working parameters and the preset weight value to calculate the quantization value of the availability of the gateway device.

Specifically, according to the correspondence between the range of preset working parameters and the quantized values, the quantized values corresponding to the range of each current working parameter are determined; according to the correspondence between the preset working parameters and the weight values, the weight values corresponding to each current working parameter are determined; according to the quantized values and weight values of each working parameter, the availability quantized value is calculated by weighted summation.

In the embodiment of the present invention, the correspondence between the range of the working parameter and the quantized value, and the correspondence between the working parameter and the weight value are preset and stored, so that in the subsequent application process, after the working parameters broadcast by all gateway devices are acquired, the quantized value and the weight value corresponding to each working parameter are obtained according to the query of the two correspondences, and then the following calculation formula using weighted summation is calculated to obtain the quantized value of the availability of the gateway device:

Wherein, AQV is the availability quantization value, Weight _i is the weight value of the i-th working parameter, QV _i is the quantization value of the i-th working parameter; and n is the number of working parameters.

As an optional implementation, the closer the range of the working parameter is to the preset normal range, the smaller the quantized value corresponding to the working parameter is; the worse the environmental factors affecting the working parameter are, the larger the weight value corresponding to the working parameter is; then the preset threshold requirement is: the availability quantized value is the minimum;

Then step S13, i.e. determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement, includes: determining the gateway device corresponding to the minimum availability quantization value as the target gateway device according to the availability quantization values of all the gateway devices.

Taking the charging pile system as an example, the working parameters of the gateway device include working temperature, 4G cellular signal strength, 433MHz signal strength, and the number of networked ordinary charging piles. The working parameters of the gateway device are quantified. Each quantified value can be adjusted according to the actual deployment scenario. The default configuration is as follows:

The normal operating temperature range of the gateway charging pile should be -20℃～65℃. According to the terminal performance at different temperatures, the temperature is divided into 3 levels: -20～50℃, 50～65℃, 65～70℃, and the quantitative values are 1, 2, and 3 respectively. That is, when the temperature is 45℃, the quantitative value QV ₁ is recorded as 1.

According to laboratory test results, 4G cellular signals can generally be stably received when RSRP is higher than -95dbm. Signals at -95 to -105dbm are relatively normal. Signals at -105 to -110dbm have weaker coverage and reduced communication stability. Therefore, the signals are divided into three levels: higher than -95dbm, -95 to -105dbm, and -105 to -110dbm. The quantized values are 1, 2, and 3, respectively. That is, when the current 4G cellular signal strength is -95dbm, the quantized value QV ₂ is 2.

The chip's 433MHz receiving sensitivity can reach above -110dbm, and is also quantified into 3 levels according to communication stability, less than -85dbm, -85~-100dbm, -100dbm~-110dbm, with quantized values of 1, 2, and 3 respectively. That is, when the current 433MHz signal strength is -90dbm, the quantized value QV ₃ is 2.

In actual applications, the number of slave device terminals in a 433MHz self-organizing network system can reach more than 100. However, considering the MCU processing speed of the gateway device, load balancing is achieved as much as possible. The number of networking devices for each gateway generally does not exceed 20. The number of charging piles connected to this gateway device network is quantified into three levels: less than 10, 11 to 16, and 16 to 21. The quantified values are 1, 2, and 3, respectively. That is, when the current number of connected device terminals is 5, the quantified value QV ₄ is recorded as 1.

Furthermore, the weight values of each item are determined according to the actual scenario of the customer. For example, if the 4G cellular network is poor, the weight value corresponding to the cellular signal strength can be increased; if the deployment environment is complex and the interference in the field is serious, the weight value corresponding to the 433MHz signal strength can be increased. Optionally, the default configurable weight values of the operating temperature Weight ₁ : the weight value of the 4G cellular network signal strength Weight ₂ : the weight value of the 433MHz signal strength Weight ₃ : the weight value of the number of networked ordinary charging piles Weight ₄ are 2:3:3:2.

According to the weight values and quantitative values of the determined working parameters of the gateway device, weighted calculation is performed to obtain the quantified availability value AQV. The formula is as follows:

Furthermore, after obtaining the availability quantification value AQV of each gateway, the gateway charging pile with a smaller value is taken as the target gateway device for connection and networking.

It can be understood that, as another optional implementation, the closer the range of the working parameter is to the preset normal range, the larger the quantized value corresponding to the working parameter is; the worse the environmental factors affecting the working parameter are, the smaller the weight value corresponding to the working parameter is; then the preset threshold requirement is: the availability quantized value is the largest;

Then step S13, i.e. determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement, includes: determining the gateway device corresponding to the maximum availability quantization value as the target gateway device according to the availability quantization values of all the gateway devices.

As a preferred implementation, step S13, i.e., determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement, includes:

S131. Determine, according to the availability quantization values of all the gateway devices, a gateway device corresponding to an availability quantization value that meets a preset threshold requirement as a candidate gateway device;

S132: when the number of the candidate gateway devices is one, use the candidate gateway device as a target gateway device;

S133: When there is more than one candidate gateway device, determine a target gateway device from among the candidate gateway devices according to specific working parameters of the candidate gateway devices.

In the embodiment of the present invention, after the availability quantization values of all gateway devices are calculated, if there are gateway devices with the same availability quantization values and meeting the requirements, it is necessary to further screen to obtain the final target gateway device.

Optionally, the specific working parameter is the number of business communication devices that are networked and connected. Then, determining the target gateway device among the candidate gateway devices based on the specific working parameters of the candidate gateway devices includes: selecting a gateway device among the candidate gateway devices whose number of business communication devices that are networked and connected is zero as the target gateway device.

Optionally, the specific working parameter is the communication signal strength with the business communication device, and determining the target gateway device among the candidate gateway devices based on the specific working parameters of the candidate gateway devices includes: selecting the gateway device with the highest communication signal strength with the business communication device among the candidate gateway devices as the target gateway device.

Taking the charging pile system as an example, after obtaining the availability quantification value AQV of each gateway, the gateway charging pile with the smaller value is selected for connection and networking. If there are multiple gateway charging piles with the minimum availability quantification value, in order to avoid strong power interference, the gateway charging pile with no charging load is selected for connection and networking. If the current gateway charging piles are all loaded or there are multiple gateway charging piles without load, the gateway charging pile with the best 433MHz signal strength is selected for connection and networking.

As a preferred implementation, the embodiment of the present invention is further implemented on the basis of any of the above embodiments, and the method further includes steps S15 and S16:

S15. When the service communication device is in a networking state, initiating an inquiry message to a networked gateway device at a preset time interval; wherein the inquiry message is used to trigger the networked gateway device to return a reply message on whether a gateway switching is required;

S16. When receiving a reply message from the networked gateway device indicating the need to switch gateways, disconnect the network connection between the service communication device and the networked gateway device, and re-execute steps S11 to S14.

If the service communication device is always connected to a fixed gateway device, when a new gateway device is added to the system or the original faulty gateway device is restored to normal, the entire system will have idle resources. At the same time, the original limited number of gateway devices will be overloaded, affecting the communication stability of the system.

In order to solve this problem, in an embodiment of the present invention, the business communication device will periodically initiate heartbeat information to the gateway device while maintaining the self-organizing network connection, and listen to the reply information of the gateway device, and then decide whether to disconnect the current networking connection and re-scan to access the new self-organizing network based on the "whether to switch gateway" flag value attached to the reply information of the gateway device.

The gateway device determines the content of the returned reply information in the following manner:

When the number of networked service communication devices of the gateway device reaches a first preset number, selecting a second preset number of service communication devices from the networked service communication devices as selected service communication devices; wherein the second preset number is less than the first preset number;

When receiving an inquiry message sent by a networked service communication device, and the service communication device sending the inquiry message is the selected service communication device, returning a reply message indicating that a gateway switching is required to the service communication device sending the inquiry message;

When an inquiry message sent by a networked service communication device is received, and the service communication device sending the inquiry message is not the selected service communication device, a reply message indicating that there is no need to switch gateways is returned to the service communication device sending the inquiry message.

The technical means adopted in the embodiments of the present invention can effectively prevent business communication equipment from being always connected to a fixed gateway device, resulting in idle resources in the entire system. Through adaptive adjustment of the networking conditions within the system, the load balancing of the gateway device connection is improved, and the communication stability of the system is improved.

Refer to Figure 4, which is a flow chart of another communication networking method provided by an embodiment of the present invention. An embodiment of the present invention provides another communication networking method, which is applied to the gateway device side, and the business communication device communicates with the server by connecting to the gateway device.

The method comprises steps S21 to S22:

S21. When the gateway device is in a normal working state, broadcasting several current working parameters of the gateway device on the selected channel; when the service communication device is in a non-networked state, calculating the availability quantization value of the gateway device according to the working parameters broadcast by all the gateway devices, determining the gateway device corresponding to the availability quantization value that meets the preset threshold requirement as the target gateway device, and sending a networking request to the target gateway device;

S22: When a networking request sent by a service communication device is received, a networking connection between the service communication device and the gateway device is established.

In an embodiment of the present invention, the communication networking system includes the server, several business communication devices and several gateway devices, wherein multiple business communication devices and multiple gateway devices form multiple star-shaped self-organizing networks, and data interaction with the server is realized through the gateway devices.

During normal operation, each of the gateway devices will select at least one channel from several preset channels to broadcast information and broadcast its current working parameters, which are working parameters that affect the reliability of the network connection between the service communication device and the gateway device.

Preferably, to avoid channel congestion, the gateway device will perform channel scanning during normal operation, obtain the distribution of gateway devices on several preset channels, and select the channel with the least number of gateway devices for broadcasting. If there is more than one channel with the least number of gateway devices, a channel with relatively good signal will be selected to initiate broadcasting.

During the normal operation of the business communication device, if the network connection with the gateway signal is not established, the channel scan will be performed through several preset channel frequencies to obtain the broadcast information of all scanned gateway devices in the current local area network and store it. Then, based on the working parameters of all the scanned gateway devices, the current availability of the gateway device is evaluated, and the availability quantification value of the gateway device is calculated. The availability quantification value is used to characterize the current availability of the gateway device. Then, the gateway device corresponding to the availability quantification value that meets the preset threshold requirements is obtained, so as to determine the gateway device with the highest availability as the target gateway device, and send a networking request to the target gateway device to establish a networking connection between the business communication device and the target gateway device. After that, the business communication device can establish data interaction with the server through networking with the target gateway device.

By adopting the technical means of the embodiment of the present invention, by adding limited redundant gateway devices to the system, all business communication devices are not fixedly connected to a single gateway device, and each business communication device can calculate the corresponding availability quantification value according to the working parameters of each gateway device, thereby selecting a gateway device that meets the requirements to establish a networking connection, thereby improving the reliability and robustness of the communication networking system, effectively avoiding the inability of multiple device terminals to carry out business processes normally due to individual communication anomalies of gateway devices in the self-organizing network, and improving the fault tolerance of the communication networking system. At the same time, the availability of the communication networking system is improved, the MCU processing pressure of each gateway device is effectively balanced, and the operating efficiency of the entire communication networking system is improved.

As a preferred implementation, the embodiment of the present invention is further implemented on the basis of the above embodiment, and the method further includes step S23:

S23. When the gateway device is in an abnormal working state, disconnect the network connection between the gateway device and the networked business communication device; wherein the abnormal working state is that the working temperature of the gateway device is abnormal or the communication signal between the gateway device and the server is abnormal.

In an embodiment of the present invention, the communication part between the gateway device and the business communication device, and the communication part between the gateway device and the server end operate independently. Therefore, when the communication signal between the gateway device and the server end is abnormal, it does not affect the normal operation of the local self-organizing network subsystem, that is, the data interaction between the connected business communication device and the gateway device.

In order to solve the problem that the communication between the gateway device and the server is abnormal, which causes the entire system's business data flow to be unable to proceed, when the communication signal between the gateway device and the server is detected to be abnormal, the network connection between the gateway device and the connected business communication device is disconnected, so that the disconnected business communication device enters the unnetworked state, and re-initiates channel scanning to find an available gateway device. When the communication signal between the gateway device and the server returns to normal, it will broadcast its current working parameters on the selected channel again, waiting to establish a network connection with the business communication device.

In addition, the working temperature of the gateway device should be within the preset normal working temperature range, otherwise it is judged as abnormal working temperature. In order to protect the safety of personnel and equipment, when the working temperature of the gateway device is detected to be abnormal, the networking connection between the gateway device and the connected business communication device is disconnected, so that the disconnected business communication device enters the unnetworked state, and re-initiates channel scanning to find available gateway devices. When the working temperature of the gateway device returns to normal, it will broadcast its current working parameters on the selected channel again, waiting to establish a networking connection with the business communication device.

Taking the charging pile system as an example, the charging pile system includes an application cloud platform, a user applet, several common charging piles and several gateway charging piles, wherein multiple common charging piles and multiple gateway charging piles form multiple star-shaped ad hoc networks, and data interaction with the application cloud platform and the user applet is realized through the gateway charging piles. The common charging piles and the gateway charging piles are connected by a 433MHz wireless network, and the gateway charging piles and the server are connected by 4G cellular communication.

When the 4G cellular network has network anomalies, such as weak signal strength or multiple communication failures in a short period of time, it will not affect the normal operation of the local ad hoc network subsystem, that is, it will not affect the data interaction between the ordinary charging pile and the gateway charging pile. At the same time, the gateway charging pile will turn off the 433MHz RF signal and disconnect the ad hoc network. After the ad hoc network is disconnected, the ordinary charging pile in the original ad hoc network will re-initiate scanning to find a new available gateway. At the same time, the gateway with abnormal 4G cellular communication will regularly monitor the 4G network status. When the 4G network status is restored, the gateway charging pile will reopen the 433MHz RF signal and reselect the channel for working parameter broadcasting.

The normal operating temperature range of the gateway charging pile should be no higher than 70℃ and no lower than -20℃. When the temperature sensing module of the gateway charging pile detects that the operating temperature exceeds 70℃ or is lower than -25℃, it will turn off the 433MHz RF signal and disconnect the ad hoc network to facilitate the ordinary charging pile to re-search the network. When the temperature returns to the normal range, the channel will be reselected to broadcast the working parameters.

As a preferred implementation, the embodiment of the present invention is further implemented on the basis of the above embodiment, and the method further includes steps S24 and S25:

S24. When the number of networked service communication devices of the gateway device reaches a first preset number, a second preset number of service communication devices are selected from the networked service communication devices as selected service communication devices; wherein the second preset number is less than the first preset number;

S25. When an inquiry message is received from a networked business communication device, and the business communication device that sent the inquiry message is the selected business communication device, a reply message indicating the need to switch the gateway is returned to the business communication device that sent the inquiry message; the selected business communication device can disconnect its network connection with the gateway device upon receiving the reply message indicating the need to switch the gateway.

In the embodiment of the present invention, when the gateway device is running in an ad hoc network and its own load is too high, it will randomly select a certain number of business communication devices from the connected business communication devices and inform them to switch gateways by replying heartbeat packets. For example, if 17 devices are networked, 7 will be randomly selected to return reply information with a "need to switch gateway" flag value.

Preferably, when the self-organizing network information of the gateway device changes, including adding new nodes and deleting nodes, the gateway device will update the self-organizing network information to the server, so that the server records and updates the networking relationship between each gateway device and each slave device, so that the control instructions can be issued correctly.

Referring to FIG. 5 , which is a schematic diagram of the structure of a communication networking device provided by an embodiment of the present invention, the embodiment of the present invention further provides a communication networking device 30, which is applied to a service communication device side, and the service communication device communicates with the service end by connecting to the gateway device for networking. The device 30 includes:

The working parameter acquisition module 31 is used to acquire a number of working parameters of the gateway device itself broadcast by all the currently scanned gateway devices when the service communication device is in a non-networked state;

Availability quantification value calculation module 32, used to calculate the availability quantification value of the gateway device according to the working parameters;

The target gateway device determination module 33 is used to determine the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement;

The first networking connection module 34 is used to send a networking request to the target gateway device to establish a networking connection between the service communication device and the target gateway device.

It should be noted that a communication networking device provided in an embodiment of the present invention is used to execute all process steps of a communication networking method applied to the business communication equipment side in the above embodiment. The working principles and beneficial effects of the two correspond one to one, and thus will not be described in detail.

Referring to FIG. 6 , which is a schematic diagram of the structure of another communication networking device provided by an embodiment of the present invention, an embodiment of the present invention further provides a communication networking device 40, which is applied to the gateway device side, and the service communication device communicates with the server by connecting to the gateway device. The device 40 includes:

The working parameter broadcasting module 41 is used to broadcast several current working parameters of the gateway device on the selected channel when the gateway device is in a normal working state; the service communication device can calculate the availability quantization value of the gateway device according to the working parameters broadcast by all the gateway devices when it is not in a networked state, determine the gateway device corresponding to the availability quantization value that meets the preset threshold requirement as the target gateway device, and send a networking request to the target gateway device;

The second networking connection module 42 is used to establish a networking connection between the service communication device and the gateway device when receiving a networking request sent by the service communication device.

It should be noted that a communication networking device provided in an embodiment of the present invention is used to execute all process steps of a communication networking method applied to the gateway device side in the above embodiment. The working principles and beneficial effects of the two correspond one to one, and thus will not be described in detail.

An embodiment of the present invention also provides a communication networking device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and when the processor executes the computer program, the communication networking method as described in any one of the above embodiments is implemented.

An embodiment of the present invention also provides a communication networking system, including a server, several gateway devices and several business communication devices, wherein the business communication devices communicate with the server by connecting to the gateway devices for networking; and the business communication devices include the communication networking device applied to the business communication device side in the above embodiment; the gateway device includes the communication networking device applied to the gateway device side in the above embodiment.

A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims (14)

1. A communication networking method, characterized in that it is applied to a service communication device side, wherein the service communication device realizes communication with a service end by connecting to a gateway device for networking; The method comprises: When the service communication device is in a non-networked state, obtaining several working parameters of the gateway device itself broadcasted by all the currently scanned gateway devices; Calculate the availability quantification value of the gateway device according to the working parameter; Determine the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement; A networking request is sent to the target gateway device to establish a networking connection between the service communication device and the target gateway device. 2. The communication networking method as described in claim 1 is characterized in that the several working parameters include working temperature, communication signal strength with the server, communication signal strength with the business communication equipment and the number of business communication equipment connected to the network. 3. The communication networking method according to claim 1, wherein the step of calculating the availability quantization value of the gateway device according to the working parameter comprises: The quantized value and the preset weight value of each of the working parameters are determined to calculate the quantized value of the availability of the gateway device. 4. The communication networking method according to claim 3, wherein determining the quantized value and the preset weight value of each of the working parameters to calculate the quantized value of the availability of the gateway device comprises: According to the correspondence between the preset range of working parameters and the quantized values, determining the quantized value corresponding to the range of each working parameter currently located; Determine the weight value corresponding to each of the current working parameters according to the corresponding relationship between the preset working parameters and the weight value; The availability quantification value is calculated by weighted summing according to the quantified value and weight value of each working parameter. 5. The communication networking method according to claim 4, characterized in that the closer the range of the working parameter is to the preset normal range, the smaller the quantized value corresponding to the working parameter is; the worse the environmental factors affecting the working parameter are, the larger the weight value corresponding to the working parameter is; then the preset threshold requirement is: the availability quantized value is the minimum; Then, determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement includes: According to the availability quantization values of all the gateway devices, a gateway device corresponding to the minimum availability quantization value is determined as the target gateway device. 6. The communication networking method according to any one of claims 1 to 5, characterized in that the step of determining the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement comprises: According to the availability quantization values of all the gateway devices, determine a gateway device corresponding to an availability quantization value that meets a preset threshold requirement as a candidate gateway device; When the number of the candidate gateway devices is one, taking the candidate gateway device as the target gateway device; When the number of the candidate gateway devices is more than one, a target gateway device is determined from the candidate gateway devices according to specific working parameters of the candidate gateway devices. 7. The communication networking method according to any one of claims 1 to 6, characterized in that the method further comprises: When the service communication device is in a networking state, an inquiry message is sent to a networked gateway device at a preset time interval; wherein the inquiry message is used to trigger the networked gateway device to return a reply message on whether a gateway switching is required; When a reply message indicating the need to switch gateways is received from the networked gateway device, the network connection between the service communication device and the networked gateway device is disconnected, and the following steps are performed again: when the service communication device is in a non-networked state, several working parameters of the gateway device itself broadcast by all the gateway devices in the current local area network are obtained. 8. A communication networking method, characterized in that it is applied to the gateway device side, and the service communication device realizes communication with the service end by connecting to the gateway device to form a network; The method comprises: When the gateway device is in a normal working state, it broadcasts several current working parameters of itself on the selected channel; when the service communication device is in a non-networked state, it can calculate the availability quantization value of the gateway device according to the working parameters broadcast by all the gateway devices, determine the gateway device corresponding to the availability quantization value that meets the preset threshold requirement as the target gateway device, and send a networking request to the target gateway device; When a networking request sent by a service communication device is received, a networking connection between the service communication device and the gateway device is established. 9. The communication networking method according to claim 8, characterized in that the method further comprises: When the gateway device is in an abnormal working state, the network connection between the gateway device and the networked business communication device is disconnected; wherein the abnormal working state is that the working temperature of the gateway device is abnormal or the communication signal between the gateway device and the server is abnormal. 10. The communication networking method according to claim 8, characterized in that the method further comprises: When the number of networked service communication devices of the gateway device reaches a first preset number, selecting a second preset number of service communication devices from the networked service communication devices as selected service communication devices; wherein the second preset number is less than the first preset number; When an inquiry message is received from a networked business communication device, and the business communication device sending the inquiry message is the selected business communication device, a reply message indicating the need to switch gateways is returned to the business communication device sending the inquiry message; the selected business communication device can disconnect its network connection with the gateway device upon receiving the reply message indicating the need to switch gateways. 11. A communication networking device, characterized in that it is applied to a service communication device side, and the service communication device realizes communication with the service end by connecting to the gateway device for networking; The device comprises: A working parameter acquisition module, used for acquiring a number of working parameters of the gateway device itself broadcast by all the currently scanned gateway devices when the service communication device is in a non-networked state; An availability quantification value calculation module, used to calculate the availability quantification value of the gateway device according to the working parameters; A target gateway device determination module is used to determine the target gateway device according to the gateway device corresponding to the availability quantization value that meets the preset threshold requirement; The first networking connection module is used to send a networking request to the target gateway device to establish a networking connection between the service communication device and the target gateway device. 12. A communication networking device, characterized in that it is applied to a gateway device side, and a business communication device realizes communication with a server by connecting to the gateway device to form a network; The device comprises: A working parameter broadcasting module, used to broadcast several current working parameters of the gateway device on a selected channel when the gateway device is in a normal working state; when the service communication device is in a non-networked state, the service communication device can calculate the availability quantization value of the gateway device according to the working parameters broadcast by all the gateway devices, determine the gateway device corresponding to the availability quantization value that meets the preset threshold requirement as the target gateway device, and send a networking request to the target gateway device; The second networking connection module is used to establish a networking connection between the service communication device and the gateway device when receiving a networking request sent by the service communication device. 13. A communication networking device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the communication networking method according to any one of claims 1 to 10 when executing the computer program. 14. A communication networking system, characterized in that it includes a server, several gateway devices and several business communication devices, wherein the business communication devices communicate with the server by connecting to the gateway devices to form a network; and the business communication devices include the communication networking device as described in claim 11; and the gateway devices include the communication networking device as described in claim 12.