CN114051041A - Intelligent agricultural machinery system and communication method based on RabbitMQ and MQTT - Google Patents
Intelligent agricultural machinery system and communication method based on RabbitMQ and MQTT Download PDFInfo
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Abstract
The invention discloses an intelligent agricultural machine system and a communication method based on RabbitMQ and MQTT, relates to the technical field of intelligent agricultural machines, and solves the technical problems that a short connection network between a management platform and the intelligent agricultural machine is high in cost, poor in communication quality and incapable of supporting decoupling. The intelligent agricultural machine system comprises an intelligent agricultural machine, a management platform, a proxy server and terminal equipment; the intelligent agricultural machine can issue operation data to the proxy server, and the management platform can subscribe to receive the operation data and push the operation data to the terminal equipment to acquire the data of the intelligent agricultural machine; the intelligent agricultural machine is capable of receiving the control instruction and issuing the control instruction to the proxy server through the management platform, and the intelligent agricultural machine receives and executes the control instruction through subscription of the proxy server to perform instruction control of the intelligent agricultural machine. According to the intelligent agricultural machinery management platform, the management platform and the intelligent agricultural machinery are decoupled through the MQTT protocol, meanwhile, the cost of a connection network is low, and blocking or network delay is not easy to occur.
Description
Technical Field
The invention relates to the technical field of intelligent agricultural machinery, in particular to an intelligent agricultural machinery communication method based on RabbitMQ and MQTT.
Background
In the wisdom agricultural production process, can have a plurality of different wisdom agricultural machinery equipment to gather agricultural machinery operation data, for example seeder, deep ploughing subsoiler etc.. And the operation background manages the large-batch equipment of different types through a uniform management platform. If each device establishes a network connection directly with the platform, it will bring many extra network overhead and resource loss to the platform. When a class of devices is controlled through batch management, problems such as congestion or network delay may occur.
In the prior art, when the intelligent agricultural machine is connected to a platform, long connection is established between the intelligent agricultural machine and a management platform, and the management platform carries out remote instruction interaction with the intelligent agricultural machine through the established long connection channel. Aiming at each intelligent agricultural machine, the management platform needs to maintain a long connection, along with the access of the intelligent agricultural machines in large batch, the network overhead and operation and maintenance difficulty of the management platform are increased, a large amount of resources of a platform server are occupied and consumed, and the difficulty of accessing the platform by subsequent equipment is increased. Therefore, short connection communication between the management platform and the equipment occurs, the management platform issues a control instruction by calling an HTTP (hyper text transport protocol) interface, the bottom layer is based on a TCP/IP (transmission control protocol/Internet protocol), the management platform and the equipment establish short connection for communication, and the communication effect with long connection is almost the same.
The disadvantages of the prior art short connection techniques still remain as follows. (1) The network overhead is large: the HTTP message contains a message header and a message body, and has long message format, high bandwidth and high network overhead; (2) decoupling between the platform and the equipment is impossible: the platform controls the remote equipment through an HTTP protocol, the bottom layer establishes short connection with the equipment based on a TCP/IP protocol to carry out communication, and the decoupling of the connection between the platform and the equipment cannot be realized; (3) the message release quality is poor: in the case of unstable network, there may be a situation where the message issued by the HTTP protocol is lost and cannot be delivered to the device, and the HTTP protocol does not support the message retransmission mechanism.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the short connection network between the management platform and the intelligent agricultural machine has high cost and poor communication quality, and can not support the decoupling between the management platform and the intelligent agricultural machine.
Disclosure of Invention
The invention aims to provide an intelligent agricultural machine communication method based on RabbitMQ and MQTT, and aims to solve the technical problems that in the prior art, a short connection network between a management platform and an intelligent agricultural machine is high in cost and poor in communication quality, and decoupling between the management platform and the intelligent agricultural machine cannot be supported. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an intelligent agricultural machine system based on RabbitMQ and MQTT, which comprises an intelligent agricultural machine, a management platform, a proxy server and terminal equipment, wherein the intelligent agricultural machine and the management platform are in communication connection with the proxy server, the terminal equipment is in communication connection with the management platform, and the intelligent agricultural machine and the management platform can be information publishers or subscribers; the intelligent agricultural machine can issue operation data to the proxy server, and the management platform can subscribe to receive the operation data and push the operation data to the terminal equipment to acquire the data of the intelligent agricultural machine; the intelligent agricultural machine is capable of receiving the control instruction and issuing the control instruction to the proxy server through the management platform, and the intelligent agricultural machine receives and executes the control instruction through subscription of the proxy server to perform instruction control of the intelligent agricultural machine.
Preferably, after the intelligent agricultural machine executes the control instruction, an execution result can be issued to the proxy server, and the proxy server can issue the execution result to the management platform according to the subscription of the management platform.
Preferably, the management platform can also send the execution result to the terminal device.
Preferably, the management platform pushes the job data to the terminal device in a WebSocket manner.
Preferably, the intelligent agricultural machine system adopts at least one service quality grade.
Preferably, the terminal device is a mobile phone, a PC, a tablet PC, a desktop all-in-one machine or a notebook.
An intelligent agricultural machinery communication method based on RabbitMQ and MQTT, wherein the data acquisition step of the communication method comprises the following steps: s110: each intelligent agricultural machine is connected to the agent server and issues the collected operation data to a data collection theme; s120: the management platform establishes connection with the proxy server and subscribes the data acquisition theme; s130: after receiving the operation data, the proxy server forwards a message to the management platform which has subscribed the data acquisition theme; s140: the management platform analyzes the received operation data and pushes the operation data to the terminal equipment in a WebSocket mode; s150: and the terminal equipment displays the received operation data.
Preferably, the step of performing command control by the communication method is: s210: each intelligent agricultural machine is connected to the proxy server and subscribes an instruction control theme; s220: the management platform is connected with the proxy server, the terminal equipment is connected with the management platform in a WebSocket mode, and any one or more intelligent agricultural machines are selected to issue a message controlled by an instruction; s230: after receiving the message issued by the management platform, the proxy server forwards the message to the intelligent agricultural machine subscribing the instruction control theme; s240: and after receiving the subscribed message, the intelligent agricultural machine analyzes and executes a command.
Preferably, the step of command control further comprises: s250: after the command is executed, the intelligent agricultural machine issues an execution message to the command control theme and uploads an execution result; s260: after receiving the execution message issued by the intelligent agricultural machine, the proxy server forwards the message to the management platform of the instruction control theme; s270: and after receiving the execution message, the management platform analyzes and updates the issuing result of the intelligent agricultural machine and issues the result to the terminal equipment.
Preferably, the step of controlling the MOTT service quality of the communication method is: s310: the publisher stores the message; s320: the publisher connects with the proxy server and publishes the message to a specified subject, wherein the service quality level of the message is QoS 1; s330: the proxy server storing the message; s340: after receiving the message, the proxy server forwards the message to the subscriber of the topic, wherein the service quality level of the message is QoS 1; s350: the proxy server responds to the publisher and publishes confirmation information to the publisher; s360: the publisher deletes the message; s370: the subscriber responds to the proxy server and issues confirmation information to the subscriber; s380: the proxy server deletes the message.
The implementation of one of the technical schemes of the invention has the following advantages or beneficial effects:
according to the intelligent agricultural machine management system, the management platform and the intelligent agricultural machine are decoupled through the MQTT protocol and a publish/subscribe mode is adopted, real-time and reliable message service is provided for the connected remote terminal equipment, data reporting and control of the intelligent agricultural machine are achieved, meanwhile, the cost of a connection network is low, and blocking or network delay is not prone to occurring.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic block diagram of a first embodiment of the present invention;
FIG. 2 is a flowchart of data collection steps according to a second embodiment of the present invention;
FIG. 3 is a flowchart of the instruction control steps of the second embodiment of the present invention;
FIG. 4 is a flowchart of the MOTT QoS control procedure of the second embodiment of the present invention;
fig. 5 is a schematic diagram of MOTT service quality control according to a second embodiment of the present invention.
Detailed Description
In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the invention may be practiced. The same numbers in different drawings identify the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatus, etc. consistent with certain aspects of the present disclosure as detailed in the appended claims, and that other embodiments may be used or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present disclosure.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," and the like are used in the orientations and positional relationships illustrated in the accompanying drawings for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the elements so referred to must have a particular orientation, be constructed in a particular orientation, and be operated. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "coupled" and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, a unitary connection, a mechanical connection, an electrical connection, a communicative connection, a direct connection, an indirect connection via intermediate media, and may include, but are not limited to, a connection between two elements or an interactive relationship between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to explain the technical solution of the present invention, the following description is made by way of specific examples, which only show the relevant portions of the embodiments of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the invention provides an intelligent agricultural machine system based on RabbitMQ and MQTT, which includes an intelligent agricultural machine (seeder, deep ploughing subsoiler, etc.), a management platform (similar to a unified management platform provided by many agricultural machine companies), an agent server and a terminal device. MQTT (Message queue Telemetry Transport) is a "lightweight" communication protocol based on a client-server publish/subscribe (publish/subscribe) mode, and is built on a TCP/IP protocol. The MQTT has the greatest advantage that a real-time reliable message service can be provided for connecting remote devices with few codes and limited bandwidth. As an instant messaging protocol with low overhead and low bandwidth occupation, the instant messaging protocol has a wide application in the aspects of Internet of Things, small devices, mobile applications, and the like, such as Machine to Machine (M2M) communication and Internet of Things (IoT). It has been widely used in communication sensors via satellite links, occasionally dial-up medical devices, smart homes, and some miniaturized devices. The RabbitMQ is an open source Message agent software (also called Message-oriented middleware) implementing Advanced Message Queuing Protocol (AMQP), and the MQTT is a plug-in of the RabbitMQ. The intelligent agricultural machine and the management platform are in communication connection with the proxy server, so that information transmission can be performed between the intelligent agricultural machine and the proxy server in a publish/subscribe mode, and the specific mode of communication connection can be selected according to needs, such as optical fibers, twisted pairs and coaxial cables in wired transmission, and Zigbee, WiFi, Bluetooth, LoRa, NB-IoT, 4G, 5G and the like in wireless transmission. The terminal device is in communication connection with the management platform, and the wired or wireless communication mode can also be adopted. The intelligent agricultural machine and the management platform can be information publishers or subscribers, reflect the characteristics of MQTT and are convenient for realizing data transmission with the proxy server. The wisdom agricultural machinery can publish operation data to proxy server, and management platform can subscribe and receive operation data and propelling movement to terminal equipment, carries out the data acquisition of wisdom agricultural machinery, and data acquisition realizes long-range terminal equipment promptly and to the operation data acquisition of wisdom agricultural machinery, is convenient for obtain the various operation parameters of wisdom agricultural machinery. Terminal equipment can receive control command to issue to proxy server through management platform, the wisdom agricultural machinery subscribes through proxy server and receives control command and carries out, carries out the instruction control of wisdom agricultural machinery, sends the instruction through terminal equipment and is convenient for user operation, realizes the remote real-time control to wisdom agricultural machinery, has improved convenience and intelligent level. According to the intelligent agricultural machine management system, the management platform and the intelligent agricultural machine are decoupled through the MQTT protocol and a publish/subscribe mode is adopted, real-time and reliable message service is provided for the connected remote terminal equipment, data reporting and control of the intelligent agricultural machine are achieved, meanwhile, the cost of a connection network is low, and blocking or network delay is not prone to occurring.
As an optional implementation manner, after the intelligent agricultural machine executes the control instruction, the execution result can be issued to the proxy server, so that feedback of the control instruction is realized, the terminal device can perform control operation and the like conveniently, and the proxy server can issue the execution result to the management platform according to subscription of the management platform. The management platform can also send the execution result to the terminal equipment.
As an optional implementation manner, the management platform pushes the job data to the terminal device in a WebSocket manner. WebSocket enables data exchange between the terminal equipment and the management platform to be simpler, allows the management platform to actively push data to the terminal equipment, and improves the collection efficiency of operation data. In a WebSocket API (Application Programming Interface), only one handshake needs to be completed between a browser of a terminal device and a management platform, and a persistent connection can be directly established between the browser and the management platform, and bidirectional data transmission is performed, so that the efficiency of data transmission is improved.
As an alternative embodiment, the intelligent agricultural machine system employs a quality of service level at least once. MQTT provides three levels of quality of service, including at most once, at least once, and only once, and the system employs at least one level of quality of service, i.e., the sender sends a message before the recipient confirms it, thereby ensuring that the message has been sent accurately. In this process, the message must be stored in the local environment of the sender and the recipient until the message is properly processed. The recipient will delete the message after processing it. The sender deletes the message stored at the sender after receiving the recipient's confirmation.
As an optional implementation manner, the terminal device is a mobile phone, a PC, a tablet computer, a desktop all-in-one machine, or a notebook. The terminal equipment can receive and display the operation data issued by the intelligent agricultural machine and can send a control instruction to the intelligent agricultural machine, and the mobile phone, the PC, the tablet personal computer, the desktop all-in-one machine or the notebook computer are common information processing equipment, so that the adaptability of the system is improved, and the operation of workers is facilitated. Of course, the intelligent agricultural machine can be interactively operated on one or more terminal devices at the same time according to the requirements.
The embodiment is only a specific example and does not indicate such an implementation of the invention.
Example two:
an intelligent agricultural machinery communication method based on RabbitMQ and MQTT is shown in figure 2, and the data acquisition steps of the communication method in the invention are as follows: s110: each intelligent agricultural machine (the intelligent agricultural machines are multiple, can be of the same type, and can also be of different types) is connected to a proxy server (Broker), and issues (Publish) collected operation data to a data collection theme (Topic, namely the name of the Topic is 'data collection'); s120: the management platform is connected with the proxy server and subscribes (subscribes) the data acquisition theme, and the information sent to the data acquisition theme by the intelligent agricultural machine can be received only after the data acquisition theme is subscribed, namely the published theme is consistent with the subscribed theme; s130: after receiving the operation data, the proxy server forwards the message to a management platform which has subscribed a data acquisition theme, and the proxy server can automatically send the message to the management platform when receiving the information of the theme as the management platform has subscribed the theme in the proxy server; s140: the management platform analyzes the received operation data and pushes the operation data to the terminal equipment in a WebSocket mode, the WebSocket mode realizes that the management platform actively pushes the data to the terminal equipment, and the timeliness of information sending is improved; s150: and the terminal equipment displays the received operation data, so that the user obtains the corresponding operation data of the intelligent agricultural machine.
As an alternative implementation, as shown in fig. 3, the instruction control step of the communication method (through which the terminal device remotely controls the intelligent agricultural machine) is: s210: each intelligent agricultural machine is connected to the proxy server, and subscribes to an instruction control subject (namely, the subject name is instruction control), and the subscription of the corresponding subject is the premise of communication between the intelligent agricultural machine and the proxy server; s220: the management platform is connected with the agent server, the terminal device is connected with the management platform in a WebSocket mode, any one or more intelligent agricultural machines are selected, and the message controlled by the command is issued, so that the independent control of one intelligent agricultural machine can be realized, and the batch control of a plurality of intelligent agricultural machines can also be realized; s230: after receiving the message issued by the management platform, the proxy server forwards the message to the intelligent agricultural machine subscribing the instruction control theme; s240: and after receiving the subscribed message, the intelligent agricultural machine analyzes and executes the command.
As an alternative implementation, as shown in fig. 3, the step of command control further includes: s250: after the command is executed, the intelligent agricultural machine issues a message to the command control theme and uploads an execution result; s260: after receiving the execution message issued by the intelligent agricultural machine, the proxy server forwards the execution message to a management platform for controlling a theme, namely, the management platform subscribing the theme can automatically receive the execution result of the intelligent agricultural machine; s270: and after the management platform subscribes and receives the execution message, analyzing and updating the publishing result of the intelligent agricultural machine, and publishing the result to the terminal equipment. The process realizes the feedback of the remote control of the intelligent terminal, realizes the information interaction and improves the intelligent level.
As an optional implementation manner, as shown in fig. 4-5, the MOTT service quality control step of the communication method is: s310: the publisher stores the message; s320: the publisher connects with the proxy server and publishes a message to a specified subject, wherein the service quality grade of the message is QoS 1; s330: the proxy server stores the message; s340: after receiving the message, the proxy server forwards the message to the subscriber of the subject, wherein the service quality grade of the message is QoS 1; s350: the proxy server responds to the publisher and publishes confirmation information to the publisher; s360: the publisher deletes the message; s370: the subscriber responds to the proxy server and issues confirmation information to the subscriber; s380: the proxy server deletes the message. In this process, the message must be stored in the local environment of the sender and the recipient until the message is properly processed. The receiver deletes the message after processing the message, and the sender deletes the message stored in the sender after receiving the confirmation of the receiver. Thereby guaranteed the reliable transmission of message, be convenient for realize the data interaction between terminal equipment and the wisdom agricultural machinery.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. An intelligent agricultural machine system based on RabbitMQ and MQTT is characterized by comprising an intelligent agricultural machine, a management platform, a proxy server and a terminal device, wherein the intelligent agricultural machine and the management platform are both in communication connection with the proxy server, the terminal device is in communication connection with the management platform, and both the intelligent agricultural machine and the management platform can be a publisher or a subscriber of information;
the intelligent agricultural machine can issue operation data to the proxy server, and the management platform can subscribe to receive the operation data and push the operation data to the terminal equipment to acquire the data of the intelligent agricultural machine; the intelligent agricultural machine is capable of receiving the control instruction and issuing the control instruction to the proxy server through the management platform, and the intelligent agricultural machine receives and executes the control instruction through subscription of the proxy server to perform instruction control of the intelligent agricultural machine.
2. The RabbitMQ and MQTT-based intelligent agricultural machine system according to claim 1, wherein the intelligent agricultural machine is further capable of issuing an execution result to the proxy server after executing the control command, and the proxy server is capable of issuing the execution result to the management platform according to a subscription of the management platform.
3. The RabbitMQ and MQTT-based intelligent agricultural machine system according to claim 2, wherein the management platform is further capable of sending the execution result to the terminal device.
4. The RabbitMQ and MQTT-based intelligent agricultural machine system according to claim 1, wherein the management platform pushes the operation data to the terminal device in a WebSocket manner.
5. The RabbitMQ and MQTT-based intelligent agricultural machine system according to claim 1, wherein the intelligent agricultural machine system employs at least one quality of service level.
6. The RabbitMQ and MQTT-based intelligent agricultural machine system according to claim 1, wherein the terminal device is a mobile phone, a PC, a tablet computer, a desktop all-in-one machine or a notebook.
7. An intelligent agricultural machinery communication method based on RabbitMQ and MQTT, which is characterized in that the data acquisition step of any one of claims 1 to 6 is carried out by the communication method:
s110: each intelligent agricultural machine is connected to the agent server and issues the collected operation data to a data collection theme;
s120: the management platform establishes connection with the proxy server and subscribes the data acquisition theme;
s130: after receiving the operation data, the proxy server forwards a message to the management platform which has subscribed the data acquisition theme;
s140: the management platform analyzes the received operation data and pushes the operation data to the terminal equipment in a WebSocket mode;
s150: and the terminal equipment displays the received operation data.
8. The intelligent agricultural machinery communication method based on RabbitMQ and MQTT as claimed in claim 7, wherein the step of performing command control by the communication method is as follows:
s210: each intelligent agricultural machine is connected to the proxy server and subscribes an instruction control theme;
s220: the management platform is connected with the proxy server, the terminal equipment is connected with the management platform in a WebSocket mode, and any one or more intelligent agricultural machines are selected to issue a message controlled by an instruction;
s230: after receiving the message issued by the management platform, the proxy server forwards the message to the intelligent agricultural machine subscribing the instruction control theme;
s240: and after receiving the subscribed message, the intelligent agricultural machine analyzes and executes a command.
9. The RabbitMQ and MQTT-based intelligent agricultural machinery communication method according to claim 8, wherein the instruction control step further comprises:
s250: after the command is executed, the intelligent agricultural machine issues an execution message to the command control theme and uploads an execution result;
s260: after receiving the execution message issued by the intelligent agricultural machine, the proxy server forwards the message to the management platform of the instruction control theme;
s270: and after receiving the execution message, the management platform analyzes and updates the issuing result of the intelligent agricultural machine and issues the result to the terminal equipment.
10. The intelligent agricultural machinery communication method based on RabbitMQ and MQTT of any one of claims 7-9, wherein the MOTT service quality control step of the communication method is as follows:
s310: the publisher stores the message;
s320: the publisher connects with the proxy server and publishes the message to a specified subject, wherein the service quality level of the message is QoS 1;
s330: the proxy server storing the message;
s340: after receiving the message, the proxy server forwards the message to the subscriber of the topic, wherein the service quality level of the message is QoS 1;
s350: the proxy server responds to the publisher and publishes confirmation information to the publisher;
s360: the publisher deletes the message;
s370: the subscriber responds to the proxy server and issues confirmation information to the subscriber;
s380: the proxy server deletes the message.
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| CN114938388A (en) * | 2022-07-22 | 2022-08-23 | 浙江中控技术股份有限公司 | Distributed data transmission method, device, system and storage medium |
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