CN113965399A - Internet of things equipment data transmission method based on MQTT protocol - Google Patents
Internet of things equipment data transmission method based on MQTT protocol Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
Abstract
The invention particularly relates to an Internet of things equipment data transmission method based on an MQTT protocol, which comprises the following steps: registering Internet of things equipment to be accessed, and generating corresponding data transmission permission based on an MQTT protocol; configuring corresponding data transmission authority and associated equipment based on the service attribute of the Internet of things equipment to generate a corresponding data transmission rule engine; acquiring corresponding sample data based on the data transmission permission of the Internet of things equipment; carrying out logic verification on a data transmission rule engine of the Internet of things equipment based on the sample data, and optimizing the corresponding data transmission rule engine based on a logic verification result; and after the verification is passed, generating a corresponding data transmission relation graph based on the data transmission rule engine of each Internet of things device. The data transmission method of the multi-Internet-of-things equipment can ensure the effectiveness of the data transmission rule engine among the equipment and the accuracy of data transmission logic.
Description
Technical Field
The invention relates to the technical field of industrial Internet of things, in particular to an Internet of things equipment data transmission method based on an MQTT protocol.
Background
With the continuous development of the internet of things technology, more and more internet of things devices need to be accessed to a network and cloud control is performed. In the aspect of communication protocol of internet of things, MQTT (Message Queuing Telemetry Transport) protocol is presented. The MQTT protocol has the advantages of simplicity, light weight, easy implementation, message forwarding model based on issuing/receiving, and the like, so that the MQTT protocol gradually becomes a standard communication protocol between devices of the internet of things.
The chinese patent with publication number CN110855774A discloses an "internet of things system with automatic configuration based on MQTT protocol", which includes a cloud server, an internet of things gateway and an industrial device, where the industrial device supports a first network communication protocol, the internet of things gateway can implement conversion between the first network communication protocol and MQTT protocol, implement data transmission with the industrial device through the first network communication protocol, implement data transmission with the cloud server through an encrypted MQTT protocol, and implement automatic configuration between device information of the industrial device and topics of the MQTT protocol through the internet of things gateway.
The automatically configured internet of things system in the existing scheme realizes automatic configuration between internet of things equipment and an MQTT protocol topic based on an MQTT protocol. However, when communication is performed based on the MQTT protocol, in addition to the configuration between the internet of things device and the MQTT protocol topic, the configuration of a data transmission rule engine (data transmission authority and associated device) between the internet of things devices is also important. In the prior art, the configuration of a data transmission rule engine between internet of things devices is generally realized in a customer 'customized' manner. However, due to the fact that the customer has limited knowledge about the service attributes of the internet of things devices, the configured data transmission rule engine is prone to have problems of logic errors or cyclic logic and the like, and further the effectiveness of the data transmission rule engine among the internet of things devices is poor and the data transmission logic is disordered. Therefore, how to design a multi-internet-of-things device data transmission method capable of ensuring the effectiveness of the inter-device data transmission rule engine and the accuracy of the data transmission logic is a technical problem to be continuously solved.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide an Internet of things equipment data transmission method based on an MQTT protocol so as to ensure the effectiveness of a data transmission rule engine among equipment and the accuracy of data transmission logic.
In order to solve the technical problems, the invention adopts the following technical scheme:
an Internet of things device data transmission method based on an MQTT protocol comprises the following steps:
s1: registering Internet of things equipment to be accessed, and generating corresponding data transmission permission based on an MQTT protocol;
s2: configuring corresponding data transmission authority and associated equipment based on the service attribute of the Internet of things equipment to generate a corresponding data transmission rule engine;
s3: acquiring corresponding sample data based on the data transmission permission of the Internet of things equipment;
s4: carrying out logic verification on a data transmission rule engine of the Internet of things equipment based on the sample data, and optimizing the corresponding data transmission rule engine based on a logic verification result;
s5: and after the verification is passed, generating a corresponding data transmission relation graph based on the data transmission rule engine of each Internet of things device.
Preferably, in step S1, when the internet of things device is registered, device information of the internet of things device is configured, and the security of the internet of things device is verified through a device key or an authentication certificate.
Preferably, the device information includes any one or more of a device name, a device UUID, and a device type.
Preferably, in step S1, the data transmission right includes an issuing right, a receiving right, and a receiving and issuing right.
Preferably, in step S2: when the data transmission authority of the Internet of things equipment is the issuing authority, the associated equipment is downstream equipment; when the data transmission authority of the Internet of things equipment is the receiving authority, the associated equipment is the upstream equipment; when the data transmission authority of the internet of things equipment is the receiving and issuing authority, the associated equipment is the upstream equipment and the upstream equipment.
Preferably, in step S3: when the data transmission authority of the Internet of things equipment is the issuing authority, the sample data is Json sample data issued by the sample data; when the data transmission authority of the Internet of things equipment is the receiving authority, sample data is Json sample data issued by upstream equipment; when the data transmission authority of the Internet of things equipment is the receiving and issuing authority, the sample data is Json sample data issued by the equipment and Json sample data issued by upstream equipment.
Preferably, in step S3, if the internet of things device corresponds to multiple data transmission rule engines, the priorities of the multiple data transmission rule engines are sorted based on the service attribute of the corresponding internet of things device.
Preferably, in step S4, the logical check includes a data transfer sequence check and a cyclic data transfer logical check.
Preferably, in step S5, in the data transmission relationship diagram, the internet of things device and the associated line corresponding to the data transmission rule engine with the logic error are highlighted.
Preferably, in step S5, when a certain data transmission path is selected in the data transmission relationship diagram, the corresponding internet of things device and the associated line are highlighted.
Compared with the prior art, the data transmission method of the multi-Internet-of-things equipment has the following beneficial effects:
according to the method and the device, the data transmission permission and the associated device are configured through the service attribute of the equipment of the Internet of things, the data transmission rule engine is generated, the probability of wrong configuration of the data rule engine caused by unfamiliarity with the service attribute of the equipment can be reduced, and the effectiveness of the data transmission rule engine among the equipment and the accuracy of data transmission logic can be further ensured.
The invention further ensures the effectiveness and the logic accuracy of the data transmission rule engine by carrying out logic check on the data transmission rule engine. Finally, the method and the device can visually display the logical relationship of the Internet of things equipment in the data transmission configuration process by generating the data transmission relationship diagram, and are beneficial to a user to acquire the data transmission logic of the data transmission rule engine among the equipment to complete corresponding operation or adjustment, so that the data transmission effect of the Internet of things equipment can be assisted and improved.
When the Internet of things equipment has a plurality of data transmission rule engines, the priority of the data transmission rule engines is sequenced through the service attributes of the Internet of things equipment, so that the effectiveness and the logic accuracy of the data transmission rule engines are further ensured. Meanwhile, through the data transmission sequence check and the cyclic data transmission logical check, the logical errors existing in the data transmission rule engine can be better identified, and therefore the data transmission effect of the Internet of things equipment is further improved.
Drawings
For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:
fig. 1 is a logic block diagram of a data transmission method for internet of things equipment;
FIG. 2 is a diagram of a first-time generated data transmission relationship in an example;
fig. 3 is a diagram of the data transmission relationship generated for the second time in the example.
Detailed Description
The following is further detailed by the specific embodiments:
example (b):
the embodiment discloses an Internet of things equipment data transmission method based on an MQTT protocol.
As shown in fig. 1, the data transmission method for the internet of things device based on the MQTT protocol includes the following steps:
s1: registering Internet of things equipment to be accessed, and generating corresponding data transmission permission based on an MQTT protocol;
s2: configuring corresponding data transmission authority and associated equipment based on the service attribute of the Internet of things equipment to generate a corresponding data transmission rule engine;
s3: acquiring corresponding sample data based on the data transmission permission of the Internet of things equipment;
s4: carrying out logic verification on a data transmission rule engine of the Internet of things equipment based on the sample data, and optimizing the corresponding data transmission rule engine based on a logic verification result;
s5: and after the verification is passed, generating a corresponding data transmission relation graph based on the data transmission rule engine of each Internet of things device.
In the invention, the data transmission permission and the associated equipment are configured through the service attribute of the equipment of the Internet of things, and the data transmission rule engine is generated, so that the probability of wrong configuration of the data rule engine caused by unfamiliarity with the service attribute of the equipment can be reduced, and the effectiveness of the data transmission rule engine among the equipment and the accuracy of data transmission logic can be further ensured. Meanwhile, the invention further ensures the effectiveness and the logic accuracy of the data transmission rule engine by carrying out logic check on the data transmission rule engine. Finally, the method and the device can visually display the logical relationship of the Internet of things equipment in the data transmission configuration process by generating the data transmission relationship diagram, and are beneficial to a user to acquire the data transmission logic of the data transmission rule engine among the equipment to complete corresponding operation or adjustment, so that the data transmission effect of the Internet of things equipment can be assisted and improved.
In a specific implementation process, when the internet of things equipment is registered, equipment information of the internet of things equipment is configured, and the internet of things equipment is subjected to security verification through an equipment key or an authentication certificate. Specifically, the device information includes a device name, a device UUID, and a device type.
In the invention, the safety of the Internet of things equipment is further ensured in a safety check mode, so that the effect of ensuring the data transmission of the Internet of things equipment can be promoted in an auxiliary manner.
In the specific implementation process, the data transmission authority includes an issuing authority, a receiving authority and a receiving and issuing authority.
Specifically, when the data transmission right of the internet of things device is the release right, the associated device is a downstream device;
when the data transmission authority of the Internet of things equipment is the receiving authority, the associated equipment is the upstream equipment;
when the data transmission authority of the internet of things equipment is the receiving and issuing authority, the associated equipment is the upstream equipment and the upstream equipment.
When the data transmission authority of the Internet of things equipment is the issuing authority, the sample data is Json sample data issued by the sample data;
when the data transmission authority of the Internet of things equipment is the receiving authority, sample data is Json sample data issued by upstream equipment;
when the data transmission authority of the Internet of things equipment is the receiving and issuing authority, the sample data is Json sample data issued by the equipment and Json sample data issued by upstream equipment.
In a specific implementation process, if the internet of things device corresponds to a plurality of data transmission rule engines, the priorities of the plurality of data transmission rule engines are sorted based on the service attributes of the corresponding internet of things device.
In a specific implementation process, the logical check includes a data transmission sequence check and a cyclic data transmission logical check. In particular, the data transmission rule engine with logic errors can be modified in a manual adjustment mode.
In the actual communication process, when one piece of internet of things equipment is configured with a plurality of data transmission rule engines, the priority of the data transmission rule engines cannot be judged, so that the problems of blocking, rule repetition, non-effective part of rules and the like during data transmission are caused.
Therefore, when the Internet of things equipment has a plurality of data transmission rule engines, the priority of the data transmission rule engines is sequenced through the service attributes of the Internet of things equipment, so that the effectiveness and the logic accuracy of the data transmission rule engines are further ensured. Meanwhile, through the data transmission sequence check and the cyclic data transmission logical check, the logical errors existing in the data transmission rule engine can be better identified, and therefore the data transmission effect of the Internet of things equipment is further improved.
In a specific implementation process, in a data transmission relation diagram, highlighting the internet of things equipment and the associated lines corresponding to the data transmission rule engine with the logic errors. And in the data transmission relation diagram, when a certain data transmission path is selected, highlighting the corresponding Internet of things equipment and the associated line.
According to the data transmission rule engine and the data transmission method, the data transmission rule engine with logic errors and the logic relation of the Internet of things equipment in the data transmission configuration process are visually displayed in a highlight display mode, so that a user can obtain the data transmission logic of the data transmission rule engine among the equipment to complete corresponding operation or adjustment, and the data transmission effect of the Internet of things equipment can be assisted and improved.
In order to better illustrate the feasibility of the data transmission method of the internet of things equipment in the invention, the following examples are disclosed.
First, equipment registration
Configuring the information of the Internet of things equipment needing to be accessed:
temperature sensing device Dev _ Temp: device UUID =131808544513, device key: TKTe × iZmA;
humidity sensing device Dev _ Humi: device UUID =174806854459, device key: XU7M duKU;
industrial air conditioning equipment Dev _ IAC: device UUID =131748068425, device certificate: dev _ IAC _ cert.crt;
a master control device Dev _ MC; device UUID =748064856254, device certificate: dev _ MC _ cert.crt;
smoke monitoring device Dev _ Moni: device UUID =236564856254, device certificate: dev _ Moni _ cert.crt;
smoke sensing device Dev _ Mq: device UUID =174806852654, device key: XUOO duMM;
alarm device Dev _ Ala: device UUID =748064856254, device certificate: dev _ Ala _ cert.crt;
based on registered internet-of-things equipment, a communication mode of an MQTT protocol is adopted to automatically generate a Topic authority (data transmission authority), an MQTT _ Username connection name and an MQTT _ Password. The data transmission authority comprises an issuing authority (enven), a receiving authority (control), a receiving and issuing authority (data), and is used for the subsequent data transmission authority identification among the Internet of things devices.
Distributing MQTT user names, MQTT passwords and data transmission permissions to the Internet of things equipment:
temperature sensing device Dev _ Temp: MQTT _ Username = JTt × 28, MQTT _ Password = hm × 26;
humidity sensing device Dev _ Humi: MQTT _ Username = JED × 68, MQTT _ Password = hm × 56;
industrial air conditioning equipment Dev _ IAC: MQTT _ Username = JSM × 11, MQTT _ Password = hm × 33;
the master control device Dev _ MC: MQTT _ Username = JCC × 23, MQTT _ Password = hX × 64;
smoke monitoring device Dev _ Moni: MQTT _ Username = CED × 08, MQTT _ Password = hm × 56;
smoke sensing device Dev _ Mq: MQTT _ Username = OPH × 81, MQTT _ Password = hm × 33;
alarm device Dev _ Ala: MQTT _ Username = ZGV × 34, MQTT _ Password = hX × 64;
the format of the data transmission authority is as follows:
receiving and publishing: /$ { devicenName }/$ { MQTT _ Username }/data;
issuing the right: /$ { deviceName }/$ { MQTT _ Username }/enven;
receiving the authority: /$ { devicenName }/$ { MQTT _ Username }/control;
second, data transmission rule engine
Configuring a data transmission rule engine (data transmission authority and associated equipment) of the equipment of the Internet of things according to the service attribute of the equipment:
temperature sensing device Dev _ Temp: issue authority (enven), downstream device: industrial air conditioning equipment Dev _ IAC;
humidity sensing device Dev _ Humi: issue authority (enven), downstream device: industrial air conditioning equipment Dev _ IAC;
industrial air conditioning equipment Dev _ IAC: issue and receive (data), downstream device: a master control device Dev _ MC;
the master control device Dev _ MC: issue and receive (data), downstream device: an alarm device Dev _ Ala;
smoke monitoring device Dev _ Moni: issue and receive (data), downstream device: an alarm device Dev _ Ala;
smoke sensing device Dev _ Mq: issue authority (enven), downstream device: smoke monitoring equipment Dev _ Moni;
alarm device Dev _ Ala: receive authority (control), upstream device: a master control device Dev _ MC;
after the data transmission rule engine of the internet of things device is configured, the associated sample data of each device is acquired, and the data transmission relationship between the internet of things devices is displayed for the first time in a data transmission relationship diagram form through the configured data transmission rule engine logic, as shown in fig. 2, the data transmission relationship diagram is provided with a plurality of data transmission paths.
The data transmission relationship diagram in fig. 2 is subjected to initial logic judgment, and it is found that the device having the receiving and issuing authority has the problem of lacking data stream, such as the issuing authority of the master control device and the receiving authority of the industrial air conditioning device and the smoke monitoring device are lacking. Therefore, the data transmission rule engine of the internet of things equipment is corrected.
According to the service attribute of the equipment, the data transmission rule engine of the equipment of the Internet of things is configured again:
temperature sensing device Dev _ Temp: issue authority (enven), downstream device: industrial air conditioning equipment Dev _ IAC;
humidity sensing device Dev _ Humi: issue authority (enven), downstream device: industrial air conditioning equipment Dev _ IAC;
industrial air conditioning equipment Dev _ IAC: issue and receive (data), downstream device: a master control device Dev _ MC and an alarm device Dev _ Ala;
the master control device Dev _ MC: issue and receive (data), downstream device: alarm device Dev _ Ala, industrial air conditioning device Dev _ IAC, smoke monitoring device Dev _ Moni;
smoke monitoring device Dev _ Moni: issue and receive (data), downstream device: alarm device Dev _ Ala, alarm device Dev _ Ala;
smoke sensing device Dev _ Mq: issue authority (enven), downstream device: smoke monitoring equipment Dev _ Moni;
alarm device Dev _ Ala: receive authority (control), upstream device: a master control device Dev _ MC, an industrial air conditioning device Dev _ IAC and a smoke monitoring device Dev _ Moni;
based on the configuration, the data transmission relationship between the internet of things devices is shown in a data transmission relationship diagram form for the second time, as shown in fig. 3.
Third, priority ordering
After logical judgment, it is found that the internet of things device with the receiving authority has a plurality of data transmission rule engines, so that the received data transmission rule engines need to be prioritized or the repeated data stream needs to be deleted. The receiving authority of the alarm device is provided with three data transmission rule engines, and a circular data stream exists among the master control device, the air conditioning device and the smoke monitoring device.
Therefore, the data transmission rule engines of the internet of things devices need to be prioritized, and the priority of the data transmission rule engines in each internet of things device is relative. And for the alarm equipment, setting received authority smoke monitoring equipment, wherein the priority of a data transmission rule engine corresponding to the received smoke monitoring equipment is 1, the priority of a data transmission rule engine corresponding to the master control equipment is 2, and the priority of a data transmission rule engine corresponding to the industrial air conditioning equipment is 3.
And selecting the corresponding data transmission path, and highlighting the Internet of things equipment and the associated route associated with the data transmission path.
Four, logical check
And performing data transmission sequence verification and cyclic data transmission logical verification on the data transmission rule engine of the data transmission relation diagram in the figure 3 to complete data transmission verification among the devices.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Meanwhile, the detailed structures, characteristics and the like of the common general knowledge in the embodiments are not described too much. Finally, the scope of the claims should be determined by the content of the claims, and the description of the embodiments and the like in the specification should be used for interpreting the content of the claims.
Claims (10)
1. An Internet of things equipment data transmission method based on an MQTT protocol is characterized by comprising the following steps:
s1: registering Internet of things equipment to be accessed, and generating corresponding data transmission permission based on an MQTT protocol;
s2: configuring corresponding data transmission authority and associated equipment based on the service attribute of the Internet of things equipment to generate a corresponding data transmission rule engine;
s3: acquiring corresponding sample data based on the data transmission permission of the Internet of things equipment;
s4: carrying out logic verification on a data transmission rule engine of the Internet of things equipment based on the sample data, and optimizing the corresponding data transmission rule engine based on a logic verification result;
s5: and after the verification is passed, generating a corresponding data transmission relation graph based on the data transmission rule engine of each Internet of things device.
2. The data transmission method for the internet of things device based on the MQTT protocol, according to claim 1, wherein: in step S1, when registering the internet of things device, configuring device information of the internet of things device, and performing security check on the internet of things device through a device key or an authentication certificate.
3. The data transmission method for the internet of things device based on the MQTT protocol, according to claim 1, wherein: the device information includes any one or more of a device name, a device UUID, and a device type.
4. The data transmission method for the internet of things device based on the MQTT protocol, according to claim 1, wherein: in step S1, the data transfer right includes an issuing right, a receiving right, and receiving and issuing rights.
5. The method for transmitting data of internet of things equipment based on MQTT protocol according to claim 4, wherein in step S2:
when the data transmission authority of the Internet of things equipment is the issuing authority, the associated equipment is downstream equipment;
when the data transmission authority of the Internet of things equipment is the receiving authority, the associated equipment is the upstream equipment;
when the data transmission authority of the internet of things equipment is the receiving and issuing authority, the associated equipment is the upstream equipment and the upstream equipment.
6. The method for transmitting data of internet of things equipment based on MQTT protocol according to claim 5, wherein in step S3:
when the data transmission authority of the Internet of things equipment is the issuing authority, the sample data is Json sample data issued by the sample data;
when the data transmission authority of the Internet of things equipment is the receiving authority, sample data is Json sample data issued by upstream equipment;
when the data transmission authority of the Internet of things equipment is the receiving and issuing authority, the sample data is Json sample data issued by the equipment and Json sample data issued by upstream equipment.
7. The data transmission method for the device of the internet of things based on the MQTT protocol of claim 6, wherein: in step S3, if the internet of things device corresponds to multiple data transmission rule engines, the priorities of the multiple data transmission rule engines are sorted based on the service attributes of the corresponding internet of things device.
8. The data transmission method for the internet of things device based on the MQTT protocol of claim 7, wherein: in step S4, the logical check includes a data transfer sequence check and a cyclic data transfer logical check.
9. The data transmission method for the internet of things device based on the MQTT protocol of claim 8, wherein: in step S5, highlighting the internet of things device and the associated line corresponding to the data transmission rule engine with the logic error in the data transmission relationship diagram.
10. The data transmission method for the internet of things device based on the MQTT protocol of claim 9, wherein: in step S5, when a certain data transmission path is selected in the data transmission relationship diagram, the corresponding internet of things device and associated line are highlighted.
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