GB2605020A - Internet of Things power system - Google Patents

Internet of Things power system Download PDF

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Publication number
GB2605020A
GB2605020A GB2203556.2A GB202203556A GB2605020A GB 2605020 A GB2605020 A GB 2605020A GB 202203556 A GB202203556 A GB 202203556A GB 2605020 A GB2605020 A GB 2605020A
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United Kingdom
Prior art keywords
internet
parameter
things
terminal device
management platform
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GB2203556.2A
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GB2605020B (en
GB202203556D0 (en
Inventor
Miao Weiwei
Zeng Zeng
Li Shihao
Cui Hengzhi
Huang Jin
Teng Changzhi
Wei Lei
Jiang Chengling
Xia Yuanyi
Zhang Rui
Zhang Mingxuan
Zhang Zhen
Bi Sibo
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State Grid Jiangsu Electric Power Co Ltd
Information and Telecommunication Branch of State Grid Jiangsu Electric Power Co Ltd
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State Grid Jiangsu Electric Power Co Ltd
Information and Telecommunication Branch of State Grid Jiangsu Electric Power Co Ltd
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Publication of GB202203556D0 publication Critical patent/GB202203556D0/en
Publication of GB2605020A publication Critical patent/GB2605020A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Abstract

An Internet of Things (IoT) power system includes a cloud layer, a channel layer, an edge layer and a terminal layer arranged in sequence from top to bottom. A device mapping set is set in advance for each type of terminal device, an IoT edge agent converts, based on the device mapping set, original power data from terminal device(s) 40 into intermediate power data and sends it to a management platform 20 which may correctly read and understand the intermediate power data and based on the device mapping set form service data in a format required by a service platform(s) 10 so that the multiple service platforms share power data collected once by the terminal device. Terminal devices may request access to the IoT system via the edge device and provide a parameter as part of the request. If the parameter supplied is unreadable the edge device is configured to obtain a readable parameter from the terminal and supply the readable unique parameter and the access request to the management platform. The management platform in considering the request determines whether the unreadable parameter is valid and also whether the readable parameter conflicts with that of another terminal device.

Description

Intellectual Property Office Application No G1322035562 RTM Date:16 May 2022 The following terms are registered trade marks and should be read as such wherever they occur in this document: Docker Intellectual Property Office is an operating name of the Patent Office www.gov.uk/ipo
INTERNET OF THINGS POWER SYSTEM
TECHNICAL FIELD
100011 The present invention relates to the technical field of the Internet of Things and, in particular, to an Internet of Things power system.
BACKGROUND
[0002] The traditional power Internet of Things mainly includes four parts: devices, channels, front-end processors and service systems and its construction is generally undertaken by professional departments, so as to meet professional functional requirements and form the layout of horizontal blocks and vertical hierarchies. Such transmission mode is in the shape of a chimney as a whole. In the same physical space, different terminal acquisition units are installed according to different professions so that information flows into respective professional systems, resulting in unified sources, inconsistent data and a difficulty in sharing the information.
[0003] As the construction of the power Internet of Things is progressing, the "cloud channel edge terminal" architecture is gradually adopted to collect and process power data, so as to expect that multi-source data can be processed uniformly. At present, unified data processing is mainly implemented by unifying communication protocols and data protocols at various levels, which is complicated to achieve. Moreover, the multi-source data is merely transmitted based on a unified protocol instead of being truly unified and fused.
SUMMARY
[0004] To solve the preceding problem, embodiments of the present invention provide an Internet of Things power system.
[0005] The embodiments of the present invention provide an Internet of Things power system. The Internet of Things power system includes multiple service platforms different from each other, an Internet of Things management platform, multiple Internet of Things edge agents and multiple terminal devices arranged in sequence from top to bottom. The Internet of Things management platform is configured to classify the multiple terminal devices, set a corresponding device mapping set for each type of terminal device, and provide the device mapping set for die multiple Internet of Things edge agents and the multiple service platforms; where the device mapping set is used for representing a mapping relationship between data in a source format and data in a target format. The terminal device is configured to send collected original power data to a corresponding Internet of Things edge agent; and the Internet of Things edge agent parses the original power data, converts the parsed original power data into intermediate power data in the source format according to the device mapping set, and sends the intermediate power data to the Internet of Things management platform. The Internet of Things management platform is configured to forward the intermediate power data to one or more service platforms; and the service platform is configured to, after receiving the intermediate power data, convert the intermediate power data into service data in the target format according to the corresponding device mapping set.
[0006] In a possible implementation, the device mapping set further includes a control instruction supported by the terminal device. The service platform is further configured to determine a control instruction in the target format according to the device mapping set and send the control instruction to the Internet of Things management platform. The Internet of Things management platform is further configured to convert the control instruction to an intermediate instruction in the source format and send the intermediate instruction to the Internet of Things edge agent. The Internet of Things edge agent is further configured to determine a target terminal device corresponding to the intermediate instruction and operate the target terminal device according to the intermediate instruction.
[0007] In a possible implementation, that the Internet of Things management platform forwards the intermediate power data to the one or more service platforms includes that the Internet of Things management platform groups the multiple terminal devices and forwards intermediate power data corresponding to different groups of terminal devices to corresponding service platforms through a message middleware.
[0008] In a possible implementation, the Internet of Things edge agent includes a northbound module, a southbound module, a message bus and multiple application programs. The northbound module is configured to communicate with the Internet of Things management platform, and the southbound module is configured to communicate with the multiple application programs via the message bus. Each of the multiple application programs corresponds to a respective one device mapping set and configured to communicate with a corresponding terminal device and convert the parsed original power data into the intermediate power data in the source format according to die corresponding device mapping set.
[0009] in a possible implementation, the northbound module includes a first Message Queueing Telemetry Transport (MQTT) client and the southbound module includes a second MQTT client. The first MQTT client communicates with the Internet of Things management platform in a publication and subscription manner. The second MQTT client communicates with the multiple application programs in the publication and subscription manner.
[0010] in a possible implementation, the multiple application programs are deployed based on containerization.
[0011] In a possible implementation, when the terminal device accesses the Internet of Things edge agent, the terminal device initiates an access request to the Internet of Things edge agent, where the access request includes an unreadable parameter. The Internet of Things edge agent reads parameters of the terminal device, reads a readable parameter of the terminal device, and sends the access request and the readable parameter to the Internet of Things management platform; where the readable parameter includes an only sub-parameter having uniqueness. The Internet of Things management platform determines whether the unreadable parameter in the access request is a preset valid parameter and determines whether the only sub-parameter in the readable parameter conflicts with an only sub-parameter of another terminal device that has accessed the Internet of Things edge agent. In the case where the unreadable parameter in the access request is the preset valid parameter and the only sub-parameter in the readable parameter does not conflict, the Internet of Things management platform allows the terminal device to gain access and records the unreadable parameter and the readable parameter as device parameters of the terminal device.
[0012] In a possible implementation, after receiving the access request and the readable parameter, the Internet of Things management platform is further configured to: determine whether the only sub-parameter in the readable parameter has been recorded in the Internet of Things management platform; in the case where the only sub-parameter in the readable parameter has been recorded in the Internet of Things management platform, determine whether the unreadable parameter and the only sub-parameter in the readable parameter are consistent with the device parameters recorded in the Internet of Things management platform and allow the terminal device to gain access in the case where the unreadable parameter and the only sub-parameter in the readable parameter are consistent with the device parameters recorded in the Internet of Things management platform; and in the case where the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform, allow the terminal device to gain access in the case where the unreadable parameter in the access request is the preset valid parameter and the only sub-parameter in the readable parameter does not conflict.
[0013] in a possible implementation, in the case where the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform, the Internet of Things management platform is thither configured to: determine whether a device mapping set corresponding to the terminal device has been set, in the case where the device mapping set corresponding to the terminal device does not exist currently, newly sct the corresponding device mapping set and send the newly set device mapping set to the corresponding Internet of Things edge agent and the service platforms.
[0014] In a possible implementation, the unreadable parameter includes a model of the terminal device, and the only sub-parameter includes a device serial number of the terminal device.
[0015] In the preceding solution provided by the embodiments of the present invention, the device mapping set is set in advance for each type of terminal device, the Internet of Things edge agent converts, based on the device mapping set, the original power data into the intermediate power data in the source format in the device mapping set, and after the Internet of Things management platform sends the intermediate power data to multiple service platforms, the service platform may correctly read and understand the intermediate power data based on the device mapping set and form the service data required by the service platform so that the multiple service platforms share power data collected once by the terminal device. The multiple service platforms may acquire the required data from the Internet of Things management platform as required without directly sharing data between these service platforms, which can avoid a data loss or a data arrival failure due to the multi-level twisting of data and can solve the problems of resource occupation and data unreliability due to a redundant data transmission.
[0016] The object, features and advantages of the present invention will be more apparent from the detailed description of the present invention in conjunction with drawings.
BRIEF DESCRIPTION OF DRAWINGS
100171 To illustrate the technical solutions in embodiments of the present invention or the related art more clearly, the drawings used in the description of the embodiments or the related art are briefly described below. Apparently, the drawings described below illustrate only part of the embodiments of the present invention, and those of ordinary skill in the art may obtain other drawings based on the drawings described below on the premise that no creative work is done.
[0018] FIG. I is a structural diagram of an Internet of Things power system according to an embodiment of the presentinvention; [0019] FIG. 2 is another structural diagram of an Internet of Things power system according to an embodiment of the present invention; and [0020] FIG. 3 is a working flowchart of an Internet of Things power system according to an embodiment of the present invention.
DETAILED DESCRIPTION
[0021] In the description of the present invention, it is to be understood that orientations or position relations indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "in", "out", "clockwise" and "counterclockwise" are based on the drawings. These orientations or position relations are intended only to facilitate and simplify: the description of the present invention and not to indicate or imply that a unit or element referred to must have such particular orientations or must be configured or operated in such particular orientations. Thus, these orientations or position relations are not to be construed as limiting the present invention.
[0022] Moreover, terms such as "first" and "second" are used only for the purpose of description and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as a "first" feature or a "second" feature may explicitly or implicitly include one or more of such features. In the description of the present invention, the term "multiple" is defined as two or more unless otherwise expressly limited.
[0023] In the present invention, terms "mounted", "joined", "connected" and "fixed" are to be understood in a broad sense unless otherwise expressly specified and limited. For example, the term "connected" may refer to "securely connected", "detachably connected" or "integrally connected", may refer to "mechanically connected" or "electrically connected" or may refer to "connected directly", "connected indirectly through an intermediary" or "connected inside two components". For those of ordinary skill in the art, specific meanings of the preceding terms in the present invention may be understood based on specific situations.
[0024] Embodiments of the present invention provide an Internet of Things power system which sets device mapping sets for terminal devices on the basis of a cloud channel edge terminal structure to implement the sharing of power data in different services. As shown in FIG. 1, the Internet of Things power system includes service platforms 10, an Internet of Things management platform 20, Internet of Things edge agents 30 and multiple terminal devices 40 arranged in sequence from top to bottom. The system includes multiple service platforms 10 different from each other, one or more Internet of Things management platforms 20, multiple Internet of Things edge agents 30 and multiple terminal devices 40. "From top to bottom" refers to relative positions of devices when data is transmitted and is not to limit that one device is above or below another device. For example, it is not limited that the service platform 10 is spatially located above the Internet of Things management platform 20. Rather, the direction in which the Internet of Things management platform 20 sends data to the service platform 10 is defined as uplink.
[0025] The Internet of Things management platform 20 is configured to classify the terminal devices 40, set a corresponding device mapping set for each type of terminal device 40, and provide a required device mapping set for a corresponding Internet of Things edge agent 30 and service platform 10. The device mapping set is used for representing a mapping relationship between data in a source format and data in a target format.
[0026] The terminal device 40 is configured to send collected original power data to a corresponding Internet of Things edge agent 30. The Internet of Things edge agent 30 parses the original power data, converts the parsed original power data into intermediate power data in the source format according to the device mapping set, and sends the intermediate power data to the Internet of Things management platform 20.
[0027] The Internet of Things management platform 20 is configured to forward the intermediate power data to one or more service platforms 10. The service platform 10 is configured to, after receiving the intermediate power data, convert the intermediate power data into service data in the target format according to the corresponding device mapping set.
[0028] In the embodiments of the present invention, the Internet of Things power system may be accessed by multiple or even a huge number of terminal devices 40. The terminal devices 40 may be divided into multiple types. For example, the terminal devices 40 may be divided into a power supply, a monitoring unit, a sensor, a charging pile, a meter and the like. Further, each type of terminal device 40 may be subdivided. For example, the sensor is divided into a temperature sensor, a current sensor and the like. Specifically, the terminal devices 40 may be classified based on actual situations. For various types of terminal device 40, the device mapping set is set for each type of terminal device 40. The device mapping set defines the mapping relationship between the data in the source format and the data in the target format so that the mutual conversion between the data in the source format and the data in the target format can be achieved based on the device mapping set. Specifically, the source format is a format supported by the corresponding terminal device 40, and the target format is a format that can be supported by part or all of the service platforms. After determining device mapping sets for multiple types of terminal device, the Internet of Things management platform 20 may provide the device mapping sets for the Internet of Things edge agents 30 and the service platforms 10. For example, the Internet of Things management platform 20 sends the device mapping set to the Internet of Things edge agent 30 and provides a query port of the device mapping set for the service platform 10.
The service platform 10 uses the device mapping set in subsequent processing by querying the device mapping set.
[0029] In the embodiments of the present invention, the terminal device 40 is located at an end of the Internet of Things power system and may be specifically a smart meter, a sensor or the like for collecting corresponding power data, that is, the original power data. After collecting the original power data, the terminal device 40 may upload the original power data to the corresponding Internet of Things edge agent 30.
[0030] The Internet of Things edge agent 30 is an edge agent device and is connected to multiple terminal devices 40 to implement the unified processing and transmission of data uploaded by the multiple terminal devices 40. In the present embodiment, the Internet of Things edge agent 30 has an edge computing capability and can parse the original power data to extract required information therein or calculate the required information and convert the required information into the data in the source format according to the corresponding device mapping set, that is, the intermediate power data so that the Internet of Things edge agent 30 can report data according to the format required by the device mapping set.
[0031] In the embodiments of the present invention, the Internet of Things management platform 20 is a bridge between the service platforms 10 and the Internet of Things edge agents 30 and may transmit the intermediate power data to the corresponding service platform 10 as required by the senfice platform 10 and may transmit the intermediate power data simultaneously to multiple service platforms 10. In the present embodiment, the service platforms 10 are service systems of different sources, for example, such as transmission, transformation, distribution and usage (power transmission, power transformation, power distribution and power usage) service systems. The Internet of Things management platform 20 simultaneously sends the intermediate power data to different service platforms 10 for use by the service platforms 10 so that power data can be collected once and shared by multiple parties, eliminating an information bather. Moreover, each service platform 10 has the device mapping set for the terminal device 40. After receiving the intermediate power data in the source format, the service platform 10 may convert the intermediate power data into the data in the target format based on the device mapping set, that is, the service data required by the service platform 10.
[0032] Optionally, that the Internet of Things management platfoim 20 "forwards the intermediate power data to the one or more service platfonns 10" specifically includes that the Internet of Things management platform 20 groups the terminal devices 40 and forwards intermediate power data corresponding to a different group of terminal devices 40 to a corresponding service platform 10 through a message middleware. in the embodiments of the present invention, the Internet of Things management platform 20 may group the terminal devices 40 according to service requirements or attributes of the terminal devices and distribute data uploaded by one group of terminal devices 40 to the corresponding service platforms 10 group by group. In addition, the Internet of Things management platform 20 may communicate with the service platforms 10 through the message middleware which may be a kaika message queue.
[0033] in the Internet of Things power system provided by the embodiments of the present invention, the device mapping set is set in advance for each type of term inal device 40, the Internet of Things edge agent 30 converts, based on the device mapping set, the original power data into the intermediate power data in the source format in the device mapping set, and after the Internet of Things management platform 20 sends the intermediate power data to multiple service platfonns 10, the service platform 10 may correctly read and understand the intermediate power data based on the device mapping set and form the service data required by the service platform 10 so that the multiple service platforms 10 share power data collected once by the terminal device 40. The multiple service platforms 10 may acquire the required data from the Internet of Things management platform 20 as required without directly sharing data between these service platforms 10, which can avoid a data loss or a data arrival failure due to the mufti-level twisting of data and can solve the problems of resource occupation and data unreliability due to a redundant data transmission.
[0034] On the basis of the preceding embodiments, the device mapping set further includes a control instruction supported by the terminal device 40. The service platform 10 sends the control instruction to the terminal device 40 based on this.
[0035] in the embodiments of the present invention, the service platform 10 is further configured to determine a control instruction in the target format according to the device mapping set and send the control instruction to the Internet of Things management platform 20; and the Internet of Things management platform 20 is farther configured to convert the control instruction to an intermediate instruction in the source format and send the intermediate instruction to the Internet of Things edge agent 30. The Internet of Things edge agent 30 is further configured to determine a target terminal device 40 corresponding to the intermediate instruction and operate the target terminal device 40 according to the intermediate instruction.
10036] In the embodiments of the present invention, the source format and the target format are defined in the device mapping set so that the service platform 10 can indirectly parse and understand the meaning of data reported by the terminal device 40 based on the device mapping set. Furthermore, the control instruction supported by the terminal device is also defined in the device mapping set so that the service platform 10 can deliver the instruction approved by the terminal device 40 to the terminal device 40 based on the device mapping set. In contrast to the process of the terminal device 40 reporting data, when the service platform 10 sends the control instruction down, the Internet of Things management platform 20 converts the control instruction into the intermediate instruction that is in the source format and can be recognized by the Internet of Things edge agent 30, and then the Internet of Things edge agent 30 may determine which terminal device the intermediate instruction is directed to, use the terminal device as the target terminal device, and operate the target tenninal device based on the intermediate instruction, thereby executing the control instruction. For example, the control instruction may be a switch instruction based on which the Internet of Things edge agent 30 turns on or off the corresponding terminal device 40 (that is, the target terminal device). Alternatively, the operation instruction is a status query instruction and the Internet of Things edge agent 30 may operate the terminal device 40 to upload its own status, so as to implement a status query.
[0037] On the basis of the preceding embodiments, the Internet of Things power system may allow the terminal device 40 to gain access at any time. The terminal device 40 cannot randomly access the Internet of Things power system and needs to be authenticated during access. When the terminal device 40 is authenticated, device parameters of the terminal device generally need to be input in advance, such as a name, a serial number (SN), a manufacturer and a model of the terminal device and an identifier (ID) of the Internet of Things edge agent to which the terminal device belongs. The process of inputting the device parameters generally needs to be performed manually. The number of terminal devices 40 is relatively large and may be tens of thousands or even millions so that the device parameters are difficult to input. However, if the device parameters are not input, the terminal device 40 is difficult to authenticate. In the embodiments of the present invention, the Internet of Things edge agent 30 automatically senses the device parameters of the terminal device 40, achieving automated access.
[0038] Specifically, in the embodiments of the present invention, when the terminal device 40 accesses the Internet of Things edge agent 30, the terminal device 40 initiates an access request to the Internet of Things edge agent 30, where the access request includes an unreadable parameter. The Internet of Things edge agent 30 reads parameters of the terminal device 40, reads a readable parameter of the terminal device 40, and sends the access request and the readable parameter to the Internet of Things management platform 20; where the readable parameter includes an only sub-parameter having uniqueness.
[0039] The Internet of Things management platform 20 determines whether the unreadable parameter in the access request is a preset valid parameter and determines whether the only sub-parameter in the readable parameter conflicts with an only sub-parameter of another terminal device that has accessed the Internet of Things edge agent. In the case where the unreadable parameter in the access request is the preset valid parameter and the only sub-parameter in the readable parameter does not conflict, the Internet of Things management platform 20 allows the terminal device 40 to gain access and records the unreadable parameter and the readable parameter as the device parameters of the terminal device 40.
[0040] in the embodiments of the present invention, the unreadable parameter of the terminal device 40 is input in advance into the Internet of Things management platform 20, where the unreadable parameter can represent one type of terminal device, such as the model of the terminal device 40. That is, the unreadable parameter is manually input. The unreadable parameter of the same type of terminal device does not need to be input repeatedly, which can reduce the volume of input data. The input unreadable parameter may be used for subsequent authentication. When a certain terminal device 40 needs to access the Internet of Things power system, the terminal device 40 initiates the access request to the accessed Internet of Things edge agent 30, where the access request includes the unreadable parameter. Moreover, the Internet of Things edge agent 30 may actively read the readable parameter of the terminal device 40. That is, the unreadable parameter cannot be read or is not read by the Internet of Things edge agent 30. Optionally, the readable parameter may include a device name, a device SN, a manufacturer or the like of the terminal device. Since the device SN has uniqueness, the device SN may be used as the only sub-parameter.
[0041] The Internet of Things management platform 20 authenticates the terminal device 40 based on the unreadable parameter and the only sub-parameter that is readable. Specifically, the unreadable parameter in the access request is compared with the unreadable parameter recorded in advance. If the two parameters are consistent, the unreadable parameter in the access request is a valid parameter. In addition, if the only sub-parameter in the readable parameter docs not conflict with the only sub-parameter of another terminal device that has accessed the Internet of Things power system, it indicates that the current terminal device 40 that needs to access the Internet of Things power system has a valid only sub-parameter. In the case where both the unreadable parameter and the only sub-parameter are valid, the terminal device 40 is allowed to access the Internet of Things power system, and the Internet of Things management platform 20 records the unreadable parameter and the readable parameter as the device parameters of the terminal device 40 so that the device parameters are automatically recorded.
[0042] in the embodiments of the present invention, the Internet of Things management platform 20 only needs to actively record the unreadable parameter representing one type of terminal device in advance so that the volume of data actively recorded can be reduced. When the terminal device 40 gains access, the Internet of Things management platform 20 may authenticate the terminal device 40 relatively accurately based on the unreadable parameter of the terminal device 40 and the only sub-parameter actively read by the Internet of Things edge agent 30. After authentication, the device parameters of the terminal device are recorded, implementing automatic recording and facilitating the subsequent authentication process when the terminal device 40 re-accesses the Internet of Things power system.
[0043] Optionally, when the terminal device 40 gains access, it cannot be detennined whether the terminal device 40 gains access for the first time, that is, it cannot be determined whether the corresponding device parameters are recorded in the Internet of Things management platform 20.
Thus, it needs to be determined whether the terminal device 40 gains access for the first time.
Specifically, after receiving the access request and the readable parameter, the Internet of Things management platform 20 is further configured to perform steps A l -A3. in step Al, it is determined whether the only sub-parameter in the readable parameter has been recorded in the Internet of Things management platform 20.
[0044] in step A2, in the case where the only sub-parameter in the readable parameter has been recorded in the Internet of Things management platform 20, it is determined whether the unreadable parameter and the only sub-parameter in the readable parameter are consistent with the device parameters recorded in the Internet of Things management platform 20, and the
II
terminal device 40 is allowed to gain access in the case where the unreadable parameter and the only sub-parameter in the readable parameter are consistent with the device parameters recorded in the Internet of Things management platform 20.
[0045] In the embodiments of the present invention, if the terminal device 40 has gained access, the Internet of Things management platform 20 may record the device parameters of the terminal device 40. Therefore, when a certain terminal device 40 needs to gain access, it may be determined whether the only sub-parameter in the readable parameter of the terminal device 40 has been recorded in the Internet of Things management platform 20. If so, it indicates that the terminal device 40 has gained access and the Internet of Things management platform 20 determines at least whether the unreadable parameter and the only sub-parameter are consistent. In the case where die unreadable parameter and die only sub-parameter are consistent, the terminal device 40 is considered to be valid. If they are inconsistent, for example, an only sub-parameter A of the terminal device 40 is recorded in the Internet of Things management platform 20, the only sub-parameter A corresponds to an unreadable parameter B which is different from an unreadable parameter C of die terminal device 40, it may be determined that the terminal device 40 is invalid.
In addition, the terminal device 40 may be authenticated based on complete device parameters, that is, the manufacturer, the device name and the like of the terminal device 40 are authenticated.
[0046] In step A3, in the case where the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform 20, the terminal device 40 is allowed to gain access in the case where the unreadable parameter in the access request is the preset valid parameter and the only sub-parameter in the readable parameter does not conflict [0047] in the embodiments of the present invention, if the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform 20, it indicates that the terminal device 40 accesses the Internet of Things power system for the first time, and the Internet of Things management platform 20 may perform authentication based on the unreadable parameter and the only sub-parameter of the terminal device in the preceding authentication manner. Details are not described herein.
[0048] In addition, optionally, in the case where the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform 20, the Internet of Things management platform 20 is further configured to perform step A4. In step A4, it is determined whether a device mapping set corresponding to the terminal device 40 has been set; in the case where the device mapping set corresponding to the terminal device 40 does not exist currently, the corresponding device mapping set is newly set and the newly set device mapping set is sent to the corresponding Internet of Things edge agent 30 and the service platforms 10.
[0049] In the embodiments of the present invention, if the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform 20, it indicates that the terminal device 40 gains access for the first time, and it needs to be ensured that the terminal device 40 is provided with the corresponding device mapping set to enable the subsequent data reporting or instruction delivery.
[0050] Optionally, when the Internet of Things management platform 20 classifies the terminal devices 40, the terminal devices 40 are classified based on the unreadable parameter. Each unreadable parameter corresponds to a uniquely determined device type, that is, corresponds to a uniquely determined device mapping set. Moreover, different unreadable parameters may correspond to the same device mapping set, that is, the unreadable parameter and the device mapping set may have a one-to-one relationship or a many-to-one relationship. After inputting the unreadable parameter in advance, the Internet of Things management platform 20 may set the corresponding device mapping set so that the terminal device 40 having the unreadable parameter can correspond to the device mapping set after accessing the Internet of Things power system. Therefore, the terminal device 40 can normally communicate with one or more service platforms 10 subsequently.
[0051] On the basis of the preceding embodiments, as shown in FIG. 2, the Internet of Things edge agent 30 includes a northbound module, a southbound module, a message bus and multiple application programs. The Internet of Things management platform may implement unified monitoring, remote maintenance and a remote upgrade of application programs for the accessed Internet of Things edge agents 30.
[0052] The northbound module is configured to communicate with the Internet of Things management platform 20, and the southbound module is configured to communicate with the application programs via the message bus. Each of the application programs corresponds to a respective one device mapping set and configured to communicate with a corresponding terminal device 40 and convert the parsed original power data into the intermediate power data in the source format according to the corresponding device mapping set.
[0053] In the embodiments of the present invention, the northbound module and the southbound module are interfaces provided by the Internet of Things edge agent 30 for two-way interaction with the Internet of Things management platform 20 and the terminal device 40. In the embodiments of the present invention, the Internet of Things edge agent 30 is provided with multiple application programs, each of which corresponds to one device mapping set, so as to implement operations such as data reporting and instruction delivery for the terminal device 40 corresponding to the device mapping set. The southbound module communicates with the application programs via the message bus. Optionally, the application program is deployed based on containerization, such as Docker containerization. The containerized application program can be developed in a shared manner. One type of application program can be developed only once, which can reduce a development cost.
[0054] Optionally, a cloud edge interaction protocol (an interaction protocol between the Internet of Things management platform 20 and the Internet of Things edge agent 30) and an edge terminal interaction protocol (an interaction protocol between the Internet of Things edge agent 30 and the terminal device 40) for a publication and subscription manner are set in advance. Specifically, both the northbound module and the southbound module implement communication in the publication and subscription manner, such as Message Queueing Telemetry Transport (MQTT), and the Internet of Things edge agent 30 implements uplink and downlink communication based on the cloud edge interaction protocol and the edge terminal interaction protocol. Specifically, the northbound module includes a first MQTT client and the southbound module includes a second MQTT client. The first MQTT client communicates with the Internet of Things management platform 20 in the publication and subscription manner. The second MQTT client communicates with the application programs in the publication and subscription manner.
[0055] In the embodiments of the present invention, a topic, a message header and the like published and subscribed to are set and defined in advance according to a power service scenario so that the first MQTT client and the second MQTT client can perform normal communication.
The following description is provided using the process in which the terminal device 40 accesses the Internet of Things power system.
[0056] in the embodiments of the present invention, the process specifically includes steps described below. In step 301, the terminal device accesses the Internet of Things edge agent and sends the access request to the Internet of Things edge agent, where the access request includes the model of the terminal device.
[0057] in step 302, the Internet of Things edge agent reads the SN, the manufacturer and other parameters of the terminal device through the application program corresponding to the terminal device.
[0058] In step 303, the application program of the Internet of Things edge agent publishes the device parameters (including the model, the SN, the manufacturer and the like) of the terminal device and the access request as a corresponding first topic; the second MQTT client of the southbound module may obtain the device parameters by subscribing to the first topic and sends the device parameters to the northbound module; and the first MQTT client of the northbound module publishes the device parameters and the access request as a second topic to be reported.
[0059] in step 304, the Internet of Things management platform subscribes to the second topic to acquire the access request and the device parameters of the terminal device.
[0060] in step 305, the Internet of Things management platform determines whether the terminal device gains access for the first time and whether the terminal device is allowed to gain access through the SN and the model of the terminal device. if the terminal device is allowed to gain access, the Internet of Things management platform publishes a message that the terminal device is allowed to gain access as a corresponding third topic.
[0061] In step 306, the northbound module of the Internet of Things edge agent subscribes to the third topic to acquire the message that the terminal device is allowed to gain access and then publishes the message to the corresponding application program through the southbound module and the message bus so that the application program obtains the message that the terminal device is allowed to gain access.
[0062] In step 307, the application program of the Internet of Things edge agent delivers the message that the terminal device is allowed to gain access to the terminal device, and then the terminal device may report the collected power dam.
[0063] in the Internet of Things power system provided by the embodiments of the present invention, the device mapping set is set in advance for each type of tenninal device 40, the Internet of Things edge agent 30 converts, based on the device mapping set, the original power data into the intermediate power data in the source format in the device mapping set, and after the Internet of Things management platform 20 sends the intermediate power data to multiple service platforms 10, the service platfonn 10 may correctly read and understand the intermediate power data based on the device mapping set and form the service data required by the service platform so that the multiple service platforms 10 share power data collected once by the terminal device 40. The multiple service platforms 10 may acquire the required data from the Internet of Things management platform 20 as required without directly sharing data between these service platforms 10, which can avoid a data loss or a data arrival failure due to the multi-level twisting of data and can solve the problems of resource occupation and data unreliability due to a redundant data transmission. In addition, the Internet of Things management platform 20 only needs to actively record the unreadable parameter representing one type of terminal device in advance so that the volume of data actively recorded can be reduced. When the terminal device 40 gains access, the Internet of Things management platform 20 may authenticate the terminal device 40 relatively accurately based on the unreadable parameter of the terminal device 40 and the only sub-parameter actively read by the Internet of Things edge agent 30. After authentication, the device parameters of the tenninal device are recorded, implementing automatic recording and facilitating the subsequent authentication process when the terminal device 40 re-accesses the Internet of Things power system.
[0064] The above are only embodiments of the present invention and not to limit the scope of the present invention. Any modifications or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention fall within the scope of the present invention. Therefore, the scope of the present invention is subject to the scope of the appended claims.

Claims (8)

  1. Claims 1, An Internet of Things power system, comprising a plurality of service platforms (10) different from each other, an Internet of Things management platform (20), a plurality of Internet of Things edge agents (30) and a plurality of terminal devices (40), wherein the plurality of service platforms (10), the Internet of Things management platform (20), the plurality of Internet of Things edge agents (30) and the plurality of te rm inal devices (40) are arranged in sequence from top to bottom; wherein the Internet of Things management platform (20) is configured to classify the plurality of terminal devices (40), set a corresponding device mapping set for each type of terminal device (40), and provide the device mapping set for the plurality of Internet of Things edge agents (30) and the plurality of service platforms (10); wherein the device mapping set is used for representing a mapping relationship between data in a source format and data in a target format; wherein the source format is a format supported by corresponding terminal devices (40), and the target format is a format supported by the plurality of service platforms (10); wherein each terminal device (40) is configured to send collected original power data to a corresponding Internet of Things edge agent (30); and the corresponding Internet of Things edge agent (30) is configured to parse the original power data to get parsed original power data, convert the parsed original power data into intermediate power data in the source format according to the device mapping set, and sends the intermediate power data to the Internet of Things management platform (20); wherein the Internet of Things management platform (20) is configured to forward the intermediate power data to one or more service platforms (10) of the plurality of service platforms (10); and each of the one or more service platforms (10) is configured to, after receiving the intermediate power data,. convert the intermediate power data into service data in the target format according to the corresponding device mapping set; wherein in a case where a terminal device (40) of the plurality of terminal devices (40) accesses an Internet of Things edge agent (30) of the plurality of Internet of Things edge agents (30), the tenninal device (40) is configured to initiate an access request to the Internet of Things edge agent (30), wherein the access request comprises an unreadable parameter; the Internet of Things edge agent (30) is configured to read parameters from the terminal device (40), read a readable parameter from the terminal device (40), and send the access request and the readable parameter to the Internet of Things management platform (20); wherein the readable parameter comprises an only sub-parameter having uniqueness; the Internet of Things management platform (20) is configured to determines whether the unreadable parameter in the access request is a preset valid parameter and determine whether the only sub-parameter in the readable parameter conflicts with an only sub-parameter of another terminal device (40) that has accessed the Internet of Things edge agent (30); and in a case where the unreadable parameter in the access request is the preset valid parameter and the only sub-parameter in the readable parameter does not conflict, the Internet of Things management platform (20) is configured to allow the terminal device (40) to access and records the unreadable parameter and the readable parameter as device parameters of the terminal device (40).
  2. 2. The Internet of Things power system according to claim 1, wherein the device mapping set further comprises a control instruction supported by the terminal device (40); each service platform is further configured to determine a control instruction in the target format according to the device mapping set and send the control instruction in the target format to the Internet of Things management platform (20); and the Internet of Things management platform (20) is further configured to convert the control instruction in the target format to an intermediate instruction in the source format and send the intermediate instruction to the plurality of Internet of Things edge agent (30); wherein the plurality of Internet of Things edge agents (30) is further configured to determine a target terminal device (40) corresponding to the intermediate instruction and operate the target terminal device (40) according to the intermediate instruction.
  3. 3. The Internet of Things power system according to claim 1, wherein the Internet of Things management platform (20) is configured to forward the intermediate power data to the one or more service platforms (10) comprises: die Internet of Things management platform (20) is configured to group the plurality of terminal devices (40), and forward intermediate power data corresponding to different groups of terminal devices (40) to corresponding service platforms (10) of the plurality of service platforms (10) 25 through a message middleware.
  4. 4. The Internet of Things power system according to claim I, wherein each Internet of Things edge agent (30) comprises a northbound module, a southbound module, a message bus and a plurality of application programs; wherein the northbound module is configured to communicate with the Internet of Things 30 management platform (20), and the southbound module is configured to communicate with the plurality of application programs via the message bus; and wherein each of the plurality of application programs corresponds to a respective device mapping set and configured to communicate with a corresponding terminal device (40) and convert the parsed original power data into the intermediate power data in the source format according to the corresponding device mapping set.
  5. 5. The Internet of Things power system according to claim 4, wherein the northbound module comprises a first Message Queueing Telemetry Transport (MQTT) client and the southbound module comprises a second MQTT client; wherein the first MQTT client is configured to communicate with the Internet of Things management platform (20) in a publication and subscription manner; and wherein the second MQTT client is configured to communicate with the plurality of application programs in the publication and subscription manner.
  6. 6, The Internet of Things power system according to claim 4, wherein the plurality of application programs is deployed based on containerization.
  7. 7. The Internet of Things power system according to claim I, wherein after receiving the access request and the readable parameter, the Internet of Things management platform (20) is further configured to: determine whether the only sub-parameter in the readable parameter has been recorded in the Internet of Things management platform (20); in a case where the only sub-parameter in the readable parameter has been recorded in the Internet of Things management platform (20), determine whether the unreadable parameter and the only sub-parameter in the readable parameter are consistent with the device parameters recorded in the Internet of Things management platform (20) and allow the terminal device (40) to access in a case where the unreadable parameter and the only sub-parameter in the readable parameter are consistent with the device parameters recorded in the Internet of Things management platform (20); and in a case where the only sub-parameter in the readable parameter is not recorded in the Internet of Things management platform (20), allow the terminal device (40) to access in the case where the unreadable parameter in the access request is the preset valid parameter and the only sub-parameter in the readable parameter does not conflict.
  8. 8. The Internet of Things power system according to claim 7, wherein in the case where the only sub-parameter in the readable parameter is not recorded in the Internet of Things management 30 platform (20), the Internet of Things management platform (20) is further configured to: determine whether a device mapping set corresponding to the terminal device (40) has been set; in a case where the device mapping set corresponding to the terminal device (40) does not exist currently, newly set a corresponding device mapping set corresponding to the terminal device (40) and send the newly set device mapping set to a corresponding Internet of Things edge agent (30) and a corresponding service platform.
    9, The Internet of Things power system according to claim 1, wherein the unreadable parameter comprises a model of a terminal device (40) of the plurality of terminal devices (40), and the only sub-parameter comprises a device serial number of a terminal device (40) of the plurality of terminal devices (40).
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