CN116347511A - Data communication method and related equipment - Google Patents
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- H04W28/0289—Congestion control
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- H—ELECTRICITY
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Abstract
The application provides a data communication method and related equipment, which are applied to the technical field of data processing. In the application, a gateway receives data acquisition requests sent by a plurality of terminal devices; processing the data acquisition request based on the identification information, generating priority information, processing the data acquisition request based on the priority information, generating data corresponding to the data acquisition request, sending a data response request to the terminal equipment, and acquiring the data acquisition request sent by the terminal equipment arranged behind if the data acquisition request sent by the terminal equipment arranged in front is not received in the two terminal equipment adjacent to each other in the processing sequence within a preset time length. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
Description
Technical Field
The present disclosure relates to the field of data processing technologies, and in particular, to a method and related device for data communication.
Background
According to the communication mode in the current wireless cellular network, the primary uplink data transmission process comprises the following steps: random access request, allocation of radio resources, connection establishment, data link layer connection establishment, identity provision, encryption initiation, data transmission, data link connection release, and connection release of radio resources; for the downlink data transfer procedure, a paging procedure is included before the random access network, in addition to the same processing procedure as the uplink data transfer procedure. It can thus be seen that the amount of communication process signalling that is required to complete the transmission of data is significant.
In a wireless data communication networking of the same frequency band of the internet of things equipment, in order to avoid data congestion caused by that a plurality of terminals send data to the gateway at the same time, a gateway is often adopted as a host, and the data is circularly ordered to the terminal. If the terminal is allowed to actively send data to the gateway, when a plurality of terminal devices respond to an event at the same time, the data are required to be sent to the gateway at the same time. At this time, the gateway receives data from a plurality of terminal devices at the same time, which is easy to cause data receiving congestion and analysis errors, so that normal communication cannot be performed, and the terminal devices can not receive normal response data of the gateway, so that the data is repeatedly transmitted, and channels are more congested.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The purpose of the application is to provide a data communication method and related equipment, at least to a certain extent overcome the problems existing in the prior art, through dividing terminal equipment, a gateway has sufficient time to perform data interaction on other terminal equipment after completing data interaction with the terminal equipment in the same frequency band, and further, data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the purpose of improving network communication efficiency is achieved.
Additional features and advantages of the application will be set forth in the detailed description which follows, or in part may be learned by practice of the invention.
According to one aspect of the present application, there is provided a method of data communication, comprising: receiving data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices; processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request; in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired.
In another aspect of the present application, an apparatus for data communication, comprising: the receiving module is configured to receive data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices respectively; the processing module is configured to process the data acquisition request based on the identification information and generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; in two terminal devices adjacent in processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired; and the sending module is configured to send a data response request to the terminal equipment, wherein the data response request comprises the data requested by the data acquisition request.
According to still another aspect of the present application, an electronic device includes: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform a method of achieving the data communication described above via execution of the executable instructions.
According to yet another aspect of the present application, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the method of data communication described above.
According to a further aspect of the present application there is provided a computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the method of data communication as described above.
The gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices; processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request; in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
FIG. 1 is a flow chart of a method of data communication according to an embodiment of the present application;
FIG. 2 illustrates a flow chart of another method of data communication provided by an embodiment of the present application;
FIG. 3 illustrates a flow chart of another method of data communication provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram of an apparatus for data communication according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 6 shows a schematic diagram of a storage medium according to an embodiment of the present application.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.
It is noted that other embodiments of the present application will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
A method of data communication according to an exemplary embodiment of the present application is described below in conjunction with fig. 1-3. It should be noted that the following application scenario is only shown for the convenience of understanding the spirit and principles of the present application, and embodiments of the present application are not limited in any way in this respect. Rather, embodiments of the present application may be applied to any scenario where applicable.
In one embodiment, the present application also provides a method of data communication. Fig. 1 schematically shows a flow diagram of a method of data communication according to an embodiment of the present application. As shown in fig. 1, the method is applied to a gateway, and includes:
s101, receiving data acquisition requests sent by a plurality of terminal devices.
In one embodiment, the data acquisition request includes identification information for characterizing the terminal device. The gateway processes the data acquisition request to generate a check result, if the check result is abnormal, the gateway sends data response requests to a plurality of terminal devices, wherein the data response requests are used for representing the terminal devices currently sending the data acquisition request to resend the data acquisition request, and if the check result is in a normal state, the identification information carried by the data acquisition request is acquired.
In another embodiment, the gateway processes the data acquisition request, generates a value of the data segment and a value of the check value (i.e. CRC 16), compares the two values, and if they are consistent, acquires the identification information in the current data acquisition request, so as to acquire the terminal device information of the current data acquisition request. If the data acquisition request is inconsistent, the gateway is not clear of which terminal device the current data acquisition request is sent, at this time, the gateway sends a message for queuing to send the current data acquisition request again to all terminal devices, so that the gateway knows the terminal device sending the data acquisition request, and returns the data requested by the terminal device to the terminal device.
S102, processing the data acquisition request based on the identification information to generate priority information.
In one embodiment, priority information is used to characterize the order of processing of the data acquisition requests. The gateway acquires the communication duration of the data acquisition request based on the identification information; and generating a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the arranged terminal equipment prohibits sending a data acquisition request to a gateway in a preset duration, and sending a data response request to the arranged terminal equipment, wherein the data response request comprises the communication identifier.
In another embodiment, if a certain terminal device needs to send multiple data packets to the gateway, in order to ensure effective and normal communication, a communication identifier for characterizing that the terminal device will send multiple data packets to the gateway is carried when sending the first data packet to the gateway, and a communication duration is set, where the communication duration needs to reserve time for resending the error packet. At this time, the gateway broadcasts a packet which is not allowed to be sent to the gateway in a scheduled time to all the terminal devices, and the irrelevant terminal devices can send data after receiving the request to wait for the corresponding time. Therefore, the communication channels of the terminal equipment and the gateway are not interfered by other terminal equipment, the terminal equipment and the gateway can be ensured to independently share the communication channels, and the terminal equipment and the gateway can receive and transmit multiple data packets.
S103, processing the data acquisition request based on the priority information, and generating data corresponding to the data acquisition request.
In one embodiment, the gateway processes the data acquisition request, generates a data response message corresponding to the data acquisition request, acquires the data size of the data response message, and generates a communication identifier if the data size is greater than a preset threshold, wherein the communication identifier is used for characterizing that the arranged terminal equipment is forbidden to send the data acquisition request to the gateway within a preset duration, and sends the data response request to the arranged terminal equipment, and the data response request comprises the communication identifier.
In another embodiment, if the gateway needs to send a plurality of data packets to a certain terminal device, in order to ensure effective and normal communication, a communication identifier for characterizing that the gateway will send a plurality of data packets to the gateway is carried when sending a first data packet to the terminal device, and a communication duration is set, where the communication duration needs to reserve time for resending an error packet. At this time, the gateway broadcasts a packet which is not allowed to be sent to the gateway in a scheduled time to all the terminal devices, and the irrelevant terminal devices can send data after receiving the request to wait for the corresponding time. Therefore, the communication channels of the terminal equipment and the gateway are not interfered by other terminal equipment, the terminal equipment and the gateway can be ensured to independently share the communication channels, and the terminal equipment and the gateway can receive and transmit multiple data packets.
S104, sending a data response request to the terminal equipment.
In one embodiment, the data response request includes data requested by the data acquisition request.
S105, in two terminal devices adjacent in processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time, the data acquisition request sent by the terminal device arranged in rear is acquired.
In one embodiment, after the front-arranged terminal device sends data to the gateway, the gateway needs to complete the response 1T after receiving the related data acquisition request sent by the current terminal device. Because the data volume of the response packet of the gateway is small, the sending time is far less than the time length T of the data acquisition request sent by the terminal equipment, and therefore, after the gateway sends the response packet, other terminal equipment re-enters the waiting period of 1T after receiving the response packet. When the arranged terminal equipment also receives the response packet of the gateway, the terminal equipment needs to wait for 1T again and can queue and send according to the nT again. If the preceding terminal device has consecutive data packets to send, then in a new 1T waiting period, the following terminal device will again enter the waiting period of 1T without interfering with the communication between the preceding terminal device and the gateway. So that continuous sending of packets and replies can be accomplished. The terminal devices arranged in front in this way complete data transmission, and the terminal devices arranged in rear complete data transmission at the time of the next nT as above, at which time the respective terminal devices transmit in order.
In the application, a gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices; processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request; in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
Optionally, in another embodiment of the method according to the present application, the processing the data acquisition request based on the priority information, generating data corresponding to the data acquisition request includes:
and if the terminal equipment and the gateway complete data interaction, sending a data response request to the arranged terminal equipment, wherein the data response request is used for representing that the arranged terminal equipment can normally send a data acquisition request.
In one embodiment, after the terminal device and the gateway communicate, the gateway may send a broadcast instruction to other terminal devices to enable all the terminal devices to resume normal ordering, and at this time, the other terminal devices send a data acquisition request to the gateway according to the ordering result, so as to acquire corresponding data.
The gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices respectively, processes the data acquisition requests to generate a verification result, if the verification result is abnormal, sends a data response request to the plurality of terminal devices, wherein the data response request is used for characterizing the terminal devices which send the data acquisition requests currently, and resends the data acquisition requests, if the verification result is in a normal state, acquires the identification information carried by the data acquisition requests, processes the data acquisition requests based on the identification information to generate priority information, wherein the priority information is used for characterizing the processing sequence of the data acquisition requests, acquires the communication duration of the data acquisition requests based on the identification information, generates a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the terminal devices which are arranged later are forbidden to send the data acquisition requests to the gateway within a preset duration, and sends the data response request to the terminal devices which are arranged later, wherein the data response request comprises the communication identifier, and sends the data response request to the terminal devices which are arranged later if the terminal devices and the gateway complete data interaction, and the data response request is used for characterizing that the terminal devices which can send the data acquisition requests normally.
In addition, the gateway processes the data acquisition request, generates a data response message corresponding to the data acquisition request, and acquires the data size of the data response message. If the data size is greater than the preset threshold, generating a communication identifier, wherein the communication identifier is used for representing that the arranged terminal equipment prohibits sending the data acquisition request to the gateway within a preset time length, and sending the data response request to the arranged terminal equipment, wherein the data response request comprises the communication identifier, and sending the data response request to the terminal equipment, and the data response request comprises the data requested by the data acquisition request. In the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
The embodiment of the application also provides a data communication method, as shown in fig. 2, comprising the following steps:
s201, receiving data acquisition requests sent by a plurality of terminal devices.
In one embodiment, the data acquisition request includes identification information for characterizing the terminal device. The gateway processes the data acquisition request to generate a check result, if the check result is abnormal, the gateway sends data response requests to a plurality of terminal devices, wherein the data response requests are used for representing the terminal devices currently sending the data acquisition request to resend the data acquisition request, and if the check result is in a normal state, the identification information carried by the data acquisition request is acquired.
In another embodiment, the gateway processes the data acquisition request, generates a value of the data segment and a value of the check value (i.e. CRC 16), compares the two values, and if they are consistent, acquires the identification information in the current data acquisition request, so as to acquire the terminal device information of the current data acquisition request. If the data acquisition request is inconsistent, the gateway is not clear of which terminal device the current data acquisition request is sent, at this time, the gateway sends a message for queuing to send the current data acquisition request again to all terminal devices, so that the gateway knows the terminal device sending the data acquisition request, and returns the data requested by the terminal device to the terminal device.
S202, processing the data acquisition request based on the identification information to generate priority information.
In one embodiment, priority information is used to characterize the order of processing of the data acquisition requests. The gateway acquires the communication duration of the data acquisition request based on the identification information; and generating a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the arranged terminal equipment prohibits sending a data acquisition request to a gateway in a preset duration, and sending a data response request to the arranged terminal equipment, wherein the data response request comprises the communication identifier.
In another embodiment, if a certain terminal device needs to send multiple data packets to the gateway, in order to ensure effective and normal communication, a communication identifier for characterizing that the terminal device will send multiple data packets to the gateway is carried when sending the first data packet to the gateway, and a communication duration is set, where the communication duration needs to reserve time for resending the error packet. At this time, the gateway broadcasts a packet which is not allowed to be sent to the gateway in a scheduled time to all the terminal devices, and the irrelevant terminal devices can send data after receiving the request to wait for the corresponding time. Therefore, the communication channels of the terminal equipment and the gateway are not interfered by other terminal equipment, the terminal equipment and the gateway can be ensured to independently share the communication channels, and the terminal equipment and the gateway can receive and transmit multiple data packets.
S203, processing the data acquisition request based on the priority information, and generating data corresponding to the data acquisition request.
In one embodiment, the gateway processes the data acquisition request, generates a data response message corresponding to the data acquisition request, acquires the data size of the data response message, and generates a communication identifier if the data size is greater than a preset threshold, wherein the communication identifier is used for characterizing that the arranged terminal equipment is forbidden to send the data acquisition request to the gateway within a preset duration, and sends the data response request to the arranged terminal equipment, and the data response request comprises the communication identifier.
In another embodiment, if the gateway needs to send a plurality of data packets to a certain terminal device, in order to ensure effective and normal communication, a communication identifier for characterizing that the gateway will send a plurality of data packets to the gateway is carried when sending a first data packet to the terminal device, and a communication duration is set, where the communication duration needs to reserve time for resending an error packet. At this time, the gateway broadcasts a packet which is not allowed to be sent to the gateway in a scheduled time to all the terminal devices, and the irrelevant terminal devices can send data after receiving the request to wait for the corresponding time. Therefore, the communication channels of the terminal equipment and the gateway are not interfered by other terminal equipment, the terminal equipment and the gateway can be ensured to independently share the communication channels, and the terminal equipment and the gateway can receive and transmit multiple data packets.
S204, sending a data response request to the terminal equipment, wherein the data response request comprises data requested by the data acquisition request.
In one embodiment, the data response request includes data requested by the data acquisition request.
S205, if the data acquisition requests sent by the terminal devices arranged in front are not received in the preset time, the data acquisition requests sent by the terminal devices arranged in rear are acquired in the two terminal devices adjacent in the processing sequence.
In one embodiment, after the front-arranged terminal device sends data to the gateway, the gateway needs to complete the response 1T after receiving the related data acquisition request sent by the current terminal device. Because the data volume of the response packet of the gateway is small, the sending time is far less than the time length T of the data acquisition request sent by the terminal equipment, and therefore, after the gateway sends the response packet, other terminal equipment re-enters the waiting period of 1T after receiving the response packet. When the arranged terminal equipment also receives the response packet of the gateway, the terminal equipment needs to wait for 1T again and can queue and send according to the nT again. If the preceding terminal device has consecutive data packets to send, then in a new 1T waiting period, the following terminal device will again enter the waiting period of 1T without interfering with the communication between the preceding terminal device and the gateway. So that continuous sending of packets and replies can be accomplished. The terminal devices arranged in front in this way complete data transmission, and the terminal devices arranged in rear complete data transmission at the time of the next nT as above, at which time the respective terminal devices transmit in order.
S206, if the data acquisition requests sent by the plurality of terminal devices are received within the preset time, sending data response requests to the plurality of terminal devices.
In one embodiment, the data response request is used to characterize the retransmission of the data acquisition request by the plurality of terminal devices according to a preset rule. If the preceding and following terminal devices are too far apart, the data they transmit can be received by the gateway but not each other. At this time, when the terminal device arranged in front transmits data, the terminal device arranged in rear also starts transmitting data, so that the data received by the gateway is erroneous. Thus, the gateway will also broadcast a re-queuing data transmission instruction, causing the end devices arranged in front and the end devices arranged in back to re-queue data transmission.
In the application, a gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices; processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request; in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired. And if the data acquisition requests sent by the plurality of terminal devices are received within the preset time, sending data response requests to the plurality of terminal devices. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
Optionally, in another embodiment of the method according to the present application, the processing the data acquisition request based on the priority information, generating data corresponding to the data acquisition request includes:
and if the terminal equipment and the gateway complete data interaction, sending a data response request to the arranged terminal equipment, wherein the data response request is used for representing that the arranged terminal equipment can normally send a data acquisition request.
In one embodiment, after the terminal device and the gateway communicate, the gateway may send a broadcast instruction to other terminal devices to enable all the terminal devices to resume normal ordering, and at this time, the other terminal devices send a data acquisition request to the gateway according to the ordering result, so as to acquire corresponding data.
The gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices respectively, processes the data acquisition requests to generate a verification result, if the verification result is abnormal, sends a data response request to the plurality of terminal devices, wherein the data response request is used for characterizing the terminal devices which send the data acquisition requests currently, and resends the data acquisition requests, if the verification result is in a normal state, acquires the identification information carried by the data acquisition requests, processes the data acquisition requests based on the identification information to generate priority information, wherein the priority information is used for characterizing the processing sequence of the data acquisition requests, acquires the communication duration of the data acquisition requests based on the identification information, generates a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the terminal devices which are arranged later are forbidden to send the data acquisition requests to the gateway within a preset duration, and sends the data response request to the terminal devices which are arranged later, wherein the data response request comprises the communication identifier, and sends the data response request to the terminal devices which are arranged later if the terminal devices and the gateway complete data interaction, and the data response request is used for characterizing that the terminal devices which can send the data acquisition requests normally.
In addition, the gateway processes the data acquisition request, generates a data response message corresponding to the data acquisition request, and acquires the data size of the data response message. If the data size is greater than the preset threshold, generating a communication identifier, wherein the communication identifier is used for representing that the arranged terminal equipment prohibits sending the data acquisition request to the gateway within a preset time length, and sending the data response request to the arranged terminal equipment, wherein the data response request comprises the communication identifier, and sending the data response request to the terminal equipment, and the data response request comprises the data requested by the data acquisition request. In the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired. And if the data acquisition requests sent by the plurality of terminal devices are received within the preset time, sending data response requests to the plurality of terminal devices. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
The embodiment of the application also provides a data communication method, as shown in fig. 3, comprising the following steps:
s301, receiving data acquisition requests sent by a plurality of terminal devices.
In one embodiment, the data acquisition request includes identification information for characterizing the terminal device. The gateway processes the data acquisition request to generate a check result, if the check result is abnormal, the gateway sends data response requests to a plurality of terminal devices, wherein the data response requests are used for representing the terminal devices currently sending the data acquisition request to resend the data acquisition request, and if the check result is in a normal state, the identification information carried by the data acquisition request is acquired.
In another embodiment, the gateway processes the data acquisition request, generates a value of the data segment and a value of the check value (i.e. CRC 16), compares the two values, and if they are consistent, acquires the identification information in the current data acquisition request, so as to acquire the terminal device information of the current data acquisition request. If the data acquisition request is inconsistent, the gateway is not clear of which terminal device the current data acquisition request is sent, at this time, the gateway sends a message for queuing to send the current data acquisition request again to all terminal devices, so that the gateway knows the terminal device sending the data acquisition request, and returns the data requested by the terminal device to the terminal device.
S302, processing the data acquisition request based on the identification information to generate priority information.
In one embodiment, priority information is used to characterize the order of processing of the data acquisition requests. The gateway acquires the communication duration of the data acquisition request based on the identification information; and generating a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the arranged terminal equipment prohibits sending a data acquisition request to a gateway in a preset duration, and sending a data response request to the arranged terminal equipment, wherein the data response request comprises the communication identifier.
In another embodiment, if a certain terminal device needs to send multiple data packets to the gateway, in order to ensure effective and normal communication, a communication identifier for characterizing that the terminal device will send multiple data packets to the gateway is carried when sending the first data packet to the gateway, and a communication duration is set, where the communication duration needs to reserve time for resending the error packet. At this time, the gateway broadcasts a packet which is not allowed to be sent to the gateway in a scheduled time to all the terminal devices, and the irrelevant terminal devices can send data after receiving the request to wait for the corresponding time. Therefore, the communication channels of the terminal equipment and the gateway are not interfered by other terminal equipment, the terminal equipment and the gateway can be ensured to independently share the communication channels, and the terminal equipment and the gateway can receive and transmit multiple data packets.
S303, processing the data acquisition request based on the priority information, and generating data corresponding to the data acquisition request.
In one embodiment, the gateway processes the data acquisition request, generates a data response message corresponding to the data acquisition request, acquires the data size of the data response message, and generates a communication identifier if the data size is greater than a preset threshold, wherein the communication identifier is used for characterizing that the arranged terminal equipment is forbidden to send the data acquisition request to the gateway within a preset duration, and sends the data response request to the arranged terminal equipment, and the data response request comprises the communication identifier.
In another embodiment, if the gateway needs to send a plurality of data packets to a certain terminal device, in order to ensure effective and normal communication, a communication identifier for characterizing that the gateway will send a plurality of data packets to the gateway is carried when sending a first data packet to the terminal device, and a communication duration is set, where the communication duration needs to reserve time for resending an error packet. At this time, the gateway broadcasts a packet which is not allowed to be sent to the gateway in a scheduled time to all the terminal devices, and the irrelevant terminal devices can send data after receiving the request to wait for the corresponding time. Therefore, the communication channels of the terminal equipment and the gateway are not interfered by other terminal equipment, the terminal equipment and the gateway can be ensured to independently share the communication channels, and the terminal equipment and the gateway can receive and transmit multiple data packets.
S304, sending a data response request to the terminal equipment.
In one embodiment, the data response request includes data requested by the data acquisition request.
S305, in two terminal devices adjacent in processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time, the data acquisition request sent by the terminal device arranged in rear is acquired.
In one embodiment, after the front-arranged terminal device sends data to the gateway, the gateway needs to complete the response 1T after receiving the related data acquisition request sent by the current terminal device. Because the data volume of the response packet of the gateway is small, the sending time is far less than the time length T of the data acquisition request sent by the terminal equipment, and therefore, after the gateway sends the response packet, other terminal equipment re-enters the waiting period of 1T after receiving the response packet. When the arranged terminal equipment also receives the response packet of the gateway, the terminal equipment needs to wait for 1T again and can queue and send according to the nT again. If the preceding terminal device has consecutive data packets to send, then in a new 1T waiting period, the following terminal device will again enter the waiting period of 1T without interfering with the communication between the preceding terminal device and the gateway. So that continuous sending of packets and replies can be accomplished. The terminal devices arranged in front in this way complete data transmission, and the terminal devices arranged in rear complete data transmission at the time of the next nT as above, at which time the respective terminal devices transmit in order.
S306, sending a data acquisition request to target terminal equipment, and if the gateway does not receive the data response message sent by the target terminal equipment within a preset time, resending the data acquisition request to the target terminal equipment.
In one embodiment, if the gateway needs to actively send a data packet to a certain terminal device, if the data packet is interfered by other factors just in the process of sending the data packet, at this time, all the terminal devices receive data and the check value are inconsistent, the relevant terminal devices do not reply to the gateway and are in the time of waiting for 1T, the gateway will enter the queuing time of nT after the 1T is finished, the gateway starts to count from the sending time, and the gateway does not receive the response of the corresponding terminal device in the 2T time, and then resends the data.
In the application, a gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices; processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request; in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged behind is acquired, the data acquisition request is sent to the target terminal device, and if the gateway does not receive the data response message sent by the target terminal device within the preset time length, the data acquisition request is sent to the target terminal device again. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
Optionally, in another embodiment of the method according to the present application, the processing the data acquisition request based on the priority information, generating data corresponding to the data acquisition request includes:
and if the terminal equipment and the gateway complete data interaction, sending a data response request to the arranged terminal equipment, wherein the data response request is used for representing that the arranged terminal equipment can normally send a data acquisition request.
In one embodiment, after the terminal device and the gateway communicate, the gateway may send a broadcast instruction to other terminal devices to enable all the terminal devices to resume normal ordering, and at this time, the other terminal devices send a data acquisition request to the gateway according to the ordering result, so as to acquire corresponding data.
The gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices respectively, processes the data acquisition requests to generate a verification result, if the verification result is abnormal, sends a data response request to the plurality of terminal devices, wherein the data response request is used for characterizing the terminal devices which send the data acquisition requests currently, and resends the data acquisition requests, if the verification result is in a normal state, acquires the identification information carried by the data acquisition requests, processes the data acquisition requests based on the identification information to generate priority information, wherein the priority information is used for characterizing the processing sequence of the data acquisition requests, acquires the communication duration of the data acquisition requests based on the identification information, generates a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the terminal devices which are arranged later are forbidden to send the data acquisition requests to the gateway within a preset duration, and sends the data response request to the terminal devices which are arranged later, wherein the data response request comprises the communication identifier, and sends the data response request to the terminal devices which are arranged later if the terminal devices and the gateway complete data interaction, and the data response request is used for characterizing that the terminal devices which can send the data acquisition requests normally.
In addition, the gateway processes the data acquisition request, generates a data response message corresponding to the data acquisition request, and acquires the data size of the data response message. If the data size is greater than the preset threshold, generating a communication identifier, wherein the communication identifier is used for representing that the arranged terminal equipment prohibits sending the data acquisition request to the gateway within a preset time length, and sending the data response request to the arranged terminal equipment, wherein the data response request comprises the communication identifier, and sending the data response request to the terminal equipment, and the data response request comprises the data requested by the data acquisition request. In the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired. And sending a data acquisition request to the target terminal equipment, and if the gateway does not receive the data response message sent by the target terminal equipment within a preset time, sending the data acquisition request to the target terminal equipment again. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
In one embodiment, as shown in fig. 4, the present application further provides an apparatus for data communication, including:
a receiving module 401, configured to receive data acquisition requests sent by a plurality of terminal devices, where the data acquisition requests include identification information used for characterizing the terminal devices respectively;
a processing module 401 configured to process the data acquisition request based on the identification information, and generate priority information, where the priority information is used to characterize a processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; in two terminal devices adjacent in processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired;
a sending module 401 is configured to send a data response request to the terminal device, where the data response request includes data requested by the data acquisition request.
In the application, a gateway receives data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices; processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request; in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged behind is acquired, the data acquisition request is sent to the target terminal device, and if the gateway does not receive the data response message sent by the target terminal device within the preset time length, the data acquisition request is sent to the target terminal device again. By dividing the terminal equipment, the gateway has enough time to perform data interaction with other terminal equipment after finishing data interaction with the terminal equipment in the same frequency band, so that data congestion is reduced when a plurality of terminals simultaneously communicate with the gateway, and the aim of improving network communication efficiency is achieved.
In another embodiment of the present application, the processing module 402 is configured to receive data acquisition requests sent by a plurality of terminal devices, and includes: processing the data acquisition request to generate a verification result; if the verification result is abnormal, sending a data response request to the plurality of terminal devices, wherein the data response request is used for representing that the terminal device which currently sends a data acquisition request resends the data acquisition request; and if the verification result is in a normal state, acquiring the identification information carried by the data acquisition request.
In another embodiment of the present application, the processing module 402 is configured to process the data acquisition request based on the identification information, and generate priority information, including:
acquiring the communication duration of the data acquisition request based on the identification information; generating a communication identifier based on the communication duration, wherein the communication identifier is used for characterizing that the arranged terminal equipment prohibits sending a data acquisition request to a gateway within a preset duration; and sending a data response request to the arranged terminal equipment, wherein the data response request comprises the communication identification.
In another embodiment of the present application, the processing module 402 is configured to process the data acquisition request based on the priority information, and generate data corresponding to the data acquisition request, and includes: processing the data acquisition request to generate a data response message corresponding to the data acquisition request; acquiring the data size of the data response message; if the data size is larger than a preset threshold, generating the communication identifier, wherein the communication identifier is used for characterizing that the terminal equipment arranged at the back is forbidden to send a data acquisition request to the gateway within a preset time length; and sending a data response request to the arranged terminal equipment, wherein the data response request comprises a communication identifier.
In another embodiment of the present application, the processing module 402 is configured to process the data acquisition request based on the priority information, and generate data corresponding to the data acquisition request, and includes: and if the terminal equipment and the gateway complete data interaction, sending a data response request to the arranged terminal equipment, wherein the data response request is used for representing that the arranged terminal equipment can normally send a data acquisition request.
In another embodiment of the present application, the processing module 402 is configured to receive data acquisition requests sent by a plurality of terminal devices, and further includes: and if the data acquisition requests sent by the plurality of terminal devices are received within the preset time, sending data response requests to the plurality of terminal devices, wherein the data response requests are used for representing the plurality of terminal devices to resend the data acquisition requests according to preset rules.
In another embodiment of the present application, the processing module 402 is configured such that the method further includes: sending a data acquisition request to target terminal equipment; and if the gateway does not receive the data response message sent by the target terminal equipment within the preset time, the gateway resends the data acquisition request to the target terminal equipment.
An embodiment of the present application provides an electronic device, as shown in fig. 5, including a processor 500, a memory 501, a bus 502, and a communication interface 503, where the processor 500, the communication interface 503, and the memory 501 are connected by the bus 502; the memory 501 stores a computer program executable on the processor 500, and the processor 500 executes the method for data communication provided in any of the foregoing embodiments of the present application when the computer program is executed.
The memory 501 may include a high-speed random access memory (RAM: random Access Memory), and may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The communication connection between the system network element and at least one other network element is implemented via at least one communication interface 403 (which may be wired or wireless), the internet, a wide area network, a local network, a metropolitan area network, etc. may be used.
The processor 500 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuitry in hardware or instructions in software in the processor 500. The processor 500 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but may also be a Digital Signal Processor (DSP), application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied as a hardware decoding processor executing or a combination of hardware and software modules executing in the decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory 501, and the processor 500 reads the information in the memory 501, and in combination with its hardware, performs the steps of the method described above.
The method for data communication between the electronic device provided by the above embodiment of the present application and the method provided by the embodiment of the present application are the same inventive concept, and have the same advantages as the method adopted, operated or implemented by the application program stored therein.
The present embodiment provides a computer readable storage medium, as shown in fig. 6, storing 601 a computer program, which when read and executed by a processor 602, implements a method for data communication as described above.
The technical solution of the embodiments of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing an electronic device (which may be an air conditioner, a refrigeration device, a personal computer, a server, or a network device, etc.) or a processor to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.
The computer readable storage medium provided by the above embodiments of the present application and the method of data communication provided by the embodiments of the present application have the same advantageous effects as the method adopted, operated or implemented by the application program stored therein, for the same inventive concept.
Embodiments of the present application provide a computer program product comprising a computer program for execution by a processor to implement a method as described above.
The computer program product provided by the above-described embodiments of the present application and the method of data communication provided by the embodiments of the present application have the same advantageous effects as the method adopted, operated or implemented by the application program stored therein, for the same inventive concept.
It should be noted that, in this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this application, all embodiments are described in a related manner, and identical and similar parts of the embodiments are all referred to each other, and each embodiment is mainly described in the differences from other embodiments. In particular, with respect to the method of data communication, the electronic device, the electronic apparatus, and the readable storage medium embodiments, since they are substantially similar to the method of data communication embodiments described above, the description is relatively simple, and the relevant points are found in the description of the method of data communication embodiments described above.
Although the present application is disclosed above, the present application is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention shall be defined by the appended claims.
Claims (10)
1. A method of data communication, comprising:
receiving data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices;
processing the data acquisition request based on the identification information to generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request;
processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request;
transmitting a data response request to the terminal device, wherein the data response request comprises data requested by the data acquisition request;
in the two terminal devices adjacent in the processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired.
2. The method of data communication according to claim 1, wherein the receiving data acquisition requests sent by the plurality of terminal devices includes:
processing the data acquisition request to generate a verification result;
if the verification result is abnormal, sending a data response request to the plurality of terminal devices, wherein the data response request is used for representing that the terminal device which currently sends a data acquisition request resends the data acquisition request;
and if the verification result is in a normal state, acquiring the identification information carried by the data acquisition request.
3. The method of data communication of claim 1, wherein processing the data acquisition request based on the identification information generates priority information, comprising:
acquiring the communication duration of the data acquisition request based on the identification information;
generating a communication identification based on the communication duration, wherein, the communication identifier is used for characterizing that the arranged terminal equipment prohibits sending a data acquisition request to the gateway for a preset time length;
and sending a data response request to the arranged terminal equipment, wherein the data response request comprises the communication identification.
4. A method of communicating data according to claim 3, wherein said processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request comprises:
processing the data acquisition request to generate a data response message corresponding to the data acquisition request;
acquiring the data size of the data response message;
if the data size is larger than a preset threshold, generating the communication identifier, wherein the communication identifier is used for characterizing that the terminal equipment arranged at the back is forbidden to send a data acquisition request to the gateway within a preset time length;
and sending a data response request to the arranged terminal equipment, wherein the data response request comprises a communication identifier.
5. The method according to any one of claims 3 or 4, wherein the processing the data acquisition request based on the priority information, generating data corresponding to the data acquisition request, includes:
and if the terminal equipment and the gateway complete data interaction, sending a data response request to the arranged terminal equipment, wherein the data response request is used for representing that the arranged terminal equipment can normally send a data acquisition request.
6. The method of data communication according to claim 1, wherein the receiving data acquisition requests sent by the plurality of terminal devices further comprises:
and if the data acquisition requests sent by the plurality of terminal devices are received within the preset time, sending data response requests to the plurality of terminal devices, wherein the data response requests are used for representing the plurality of terminal devices to resend the data acquisition requests according to preset rules.
7. The method of data communication of claim 1, wherein the method further comprises:
sending a data acquisition request to target terminal equipment;
and if the gateway does not receive the data response message sent by the target terminal equipment within the preset time, the gateway resends the data acquisition request to the target terminal equipment.
8. An apparatus for data communication, comprising:
the receiving module is configured to receive data acquisition requests sent by a plurality of terminal devices, wherein the data acquisition requests comprise identification information used for characterizing the terminal devices respectively;
the processing module is configured to process the data acquisition request based on the identification information and generate priority information, wherein the priority information is used for representing the processing sequence of the data acquisition request; processing the data acquisition request based on the priority information to generate data corresponding to the data acquisition request; in two terminal devices adjacent in processing sequence, if the data acquisition request sent by the terminal device arranged in front is not received within a preset time length, the data acquisition request sent by the terminal device arranged in rear is acquired;
And the sending module is configured to send a data response request to the terminal equipment, wherein the data response request comprises the data requested by the data acquisition request.
9. An electronic device, comprising:
a processor; and a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the method of data communication of any of claims 1-7 via execution of the executable instructions.
10. A computer readable storage medium storing computer readable instructions which, when executed, perform the operations of the method of data communication of any one of claims 1 to 7.
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