CN114070357B - Networking system of power Internet of things sensing equipment - Google Patents
Networking system of power Internet of things sensing equipment Download PDFInfo
- Publication number
- CN114070357B CN114070357B CN202111353861.4A CN202111353861A CN114070357B CN 114070357 B CN114070357 B CN 114070357B CN 202111353861 A CN202111353861 A CN 202111353861A CN 114070357 B CN114070357 B CN 114070357B
- Authority
- CN
- China
- Prior art keywords
- handshake
- sensing
- access
- frequency band
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000006855 networking Effects 0.000 title claims abstract description 23
- 239000000969 carrier Substances 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 146
- 230000005540 biological transmission Effects 0.000 claims description 43
- 230000000295 complement effect Effects 0.000 claims description 41
- 238000012790 confirmation Methods 0.000 claims description 15
- 238000007667 floating Methods 0.000 claims description 15
- 238000004458 analytical method Methods 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000012795 verification Methods 0.000 claims description 11
- 230000008447 perception Effects 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 4
- 238000004128 high performance liquid chromatography Methods 0.000 abstract description 22
- 238000012545 processing Methods 0.000 abstract description 20
- 238000005516 engineering process Methods 0.000 abstract description 17
- 238000013461 design Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000004927 fusion Effects 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 46
- 238000007405 data analysis Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 238000007418 data mining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/544—Setting up communications; Call and signalling arrangements
Abstract
The invention relates to a power Internet of things sensing equipment networking system which is applied to a power grid architecture based on broadband power line carriers and comprises an access management server, sensing equipment and auxiliary access equipment, wherein the access management server comprises an access management module, a channel configuration module, a handshake acquisition module, a handshake matching module and an access distribution module; based on a typical HPLC technical application scene of five information physical systems, novel modularized acquisition terminals, distribution transformer intelligent terminals, a distribution station fusion device, a concentrator, an intelligent electric energy meter, an energy controller, an energy router, an edge Internet of things agent and other HPLC Internet of things intelligent sensing equipment are supported to be plug-and-play and mass accessed. The design requirement of an internet of things cloud platform based on efficient access and processing of HPLC intelligent sensing equipment is researched, and efficient and reliable processing of access data is supported. The design requirements of the ubiquitous power Internet of things of the client side on the HPLC technology are determined, and a foundation is laid for smooth system construction.
Description
Technical Field
The invention relates to the technical field of power grid networking, in particular to a power Internet of things sensing equipment networking system.
Background
At present, an electric power system HPLC technology is mainly applied to an acquisition terminal and an intelligent electric energy meter, equipment access and data acquisition mainly depend on an electricity utilization information acquisition system, and a basic architecture of the electric power system HPLC technology is divided into three layers of an acquisition system main station, a communication channel and acquisition equipment, wherein the acquisition system main station has the function of realizing system data interaction, storage and acquisition business flow management and mainly comprises a preposed service part, a data storage part, a main station application part and the like; the communication channel comprises a remote communication part and a local communication part, wherein the remote communication part comprises channels such as a 230M wireless private network, a GPRS wireless public network and an optical fiber private network which are built by a company, and the local communication part comprises channels such as a narrow-band carrier, a high-speed carrier, a micro-power wireless part and a 485 bus; the collecting device is a set of field metering devices and collecting terminals and mainly comprises electric energy meters, concentrators, special transformer terminals and the like.
With the popularization and application of the HPLC technology, the technology becomes a main communication means for applications such as a smart grid, energy management, smart homes, photovoltaic power generation, electric vehicle charging and the like, applied devices are also expanded from the existing concentrator and the smart electric meter to a distribution transformer intelligent terminal, an energy source controller, an energy router, a border internet of things agent and other devices, the existing acquisition system is still focused on the acquisition of electric energy information, the defects of the ubiquitous access acquisition and data application management of various novel devices are supported, and the efficient, flexible and ubiquitous access of power grid secondary devices and client-side devices and the comprehensive application of data and intelligent management of the electric power internet of things devices cannot be realized.
Disclosure of Invention
In view of the above, the present invention provides a power internet of things sensing device networking system to solve the above problems.
In order to solve the technical problems, the technical scheme of the invention is as follows: a power Internet of things sensing equipment networking system is applied to a power grid architecture based on broadband power line carriers and comprises an access management server, sensing equipment and auxiliary access equipment, wherein the access management server comprises an access management module, a channel configuration module, a handshake acquisition module, a handshake matching module and an access distribution module;
the access management module constructs a frequency band access model according to the real-time equipment access condition in the power grid architecture, the frequency band access model is generated according to the use information of each equipment in the power grid architecture, the use information comprises communication type data, communication frequency band data and communication requirement data, the communication type data reflects the communication characteristics of the access equipment, the communication frequency band data reflects the carrier communication frequency band of the access equipment, and the communication requirement data reflects the communication frequency and the communication data volume of the access equipment;
the channel configuration module is used for configuring an access channel in the power grid framework of the broadband power line carrier and transmitting the communication frequency band of the access channel to the auxiliary access equipment and the handshake acquisition module;
the handshake acquisition module comprises a handshake monitoring unit, the handshake monitoring unit is used for acquiring communication signals in the power line, and the handshake acquisition module is configured with a corresponding handshake monitoring unit according to a received communication frequency band;
the handshake matching module is configured with a sensing equipment database, the sensing equipment database is configured with a plurality of pieces of sensing equipment information, each piece of sensing equipment information comprises sensing classification data and sensing characteristic data, each piece of sensing equipment information corresponds to a formatting index, the handshake matching module comprises a handshake verification unit and a handshake index unit, the handshake matching module acquires handshake information from the communication signal, the handshake authentication unit authenticates handshake identification data in the handshake information, and if the authentication is completed, the handshake verification unit sends handshake index data in handshake information to the handshake index unit, the handshake index unit generates a corresponding formatting index according to the handshake index data, then calling corresponding sensing equipment information from the sensing equipment database according to the formatted index, and sending the sensing equipment information to an access distribution module;
the access distribution module comprises a frequency band dividing unit, a demand analysis unit, a group dividing unit and an instruction generating unit, wherein the frequency band dividing unit determines a distribution frequency band according to sensing equipment information and a frequency band access model, the demand analysis unit generates demand confirmation information according to the determined distribution frequency band and the sensing equipment information, and analyzes corresponding actual demand information to obtain necessary demand data and floating demand data after receiving actual demand information fed back by sensing equipment, the group dividing unit groups the sensing equipment on the basis of access equipment of the corresponding distribution frequency band according to the necessary demand data to generate group data, and the instruction generating unit generates a control distribution instruction according to the floating demand data and the group data and sends the control distribution instruction to the corresponding sensing equipment;
the auxiliary access device is connected between the perception device and the power grid, the auxiliary access device comprises a handshake configuration module, the handshake configuration module comprises a handshake configuration unit, a format conversion unit, a handshake output unit and a handshake receiving unit, the handshake configuration unit configures a handshake output unit according to a communication frequency band of an access channel, the format conversion unit is configured with a formatting strategy, the formatting strategy receives access information from the sensing device, and performs characteristic extraction on the access information to form handshake index data, the handshake output unit generates handshake information according to the handshake index data and handshake identification data and sends the handshake information to the access management server, the handshake receiving unit is used for receiving the requirement confirmation information and sending the requirement confirmation information to the corresponding sensing equipment, and meanwhile, generating a frequency band configuration instruction according to the demand confirmation information to configure the carrier output frequency band of the sensing equipment in the power grid.
Further, each auxiliary access device is configured with a corresponding authentication service module, and the authentication service module includes a mobile receiving unit for receiving the handshake identification data.
Further, the access management module includes a load statistics unit, where the load statistics unit is configured to calculate a frequency band communication load of each communication frequency band in a frequency band access model, where the frequency band communication load is generated according to a load correlation value of each group, and the load correlation value reflects an actual load condition of the sensing device of the group;
the access distribution module is configured with a type matching database, the type matching database stores sensing carrier matching values, the sensing carrier matching values reflect the matching relationship between two sensing devices, the group division unit is configured with a grouping management strategy, the grouping management strategy comprises the steps of calculating the load correlation value of each group of the sensing devices and the frequency band access model according to necessary demand data and the corresponding sensing carrier matching values, dividing the sensing devices into groups with the load correlation values meeting a first load condition, and generating carrier time characteristic data of the corresponding group.
Furthermore, the access allocation module is configured with a frequency band matching database, the frequency band matching database stores frequency band characteristic data, the frequency band characteristic data reflects an association relationship between sensing equipment information and communication frequency bands, the frequency band division unit screens communication frequency bands meeting conditions from the frequency band access model according to the frequency band characteristic data, and selects the communication frequency band with the minimum frequency band communication load as an allocation frequency band.
Further, the access management server also comprises a matching management module, the matching management module comprises a same type group unit and a complementary group unit, the match management module invokes a sense carrier match value for each sensing device to form a sense carrier array, the matching management module is configured with the same kind of dividing conditions and the complementary dividing conditions, the matching management module divides the sensing devices corresponding to the sensing carrier wave arrays meeting the same kind of dividing conditions into the same kind of group units and divides the sensing carrier wave arrays meeting the complementary dividing conditions into the complementary group units, the same kind of dividing condition is that the sensing carrier wave matching value of the sensing device and the same kind of sensing device is higher than the first preset difference value of the sensing carrier wave matching value of other devices, the complementary division condition is that the sensing carrier matching value of the sensing equipment and the other sensing equipment is higher than a second preset difference value of the sensing carrier matching value of the other sensing equipment;
the same type group unit establishes a same type group as a group in a communication frequency band according to the sensing equipment; the complementary group unit establishes a complementary group as a group in the communication frequency band according to the two sensing devices.
Further, the matching management module further includes a matching correction unit, the matching correction unit obtains a transmission abnormal log, the transmission abnormal log includes packet loss, transmission error and transmission delay, and the matching correction unit corrects the sensing carrier matching value corresponding to the sensing device under the corresponding group according to the transmission abnormal log.
Further, the similar group unit is configured with a plurality of similar communication standards, each similar communication standard includes redundancy removal data, the access management server sends the similar communication standard to a corresponding sensing device in the similar group, and the sensing device executes the similar communication standard and removes the redundancy removal data from each sent carrier signal when receiving the similar communication standard.
Further, the complementary group unit is configured with a plurality of complementary communication standards including orthogonal check data, the access management server sends the complementary communication standards to the corresponding sensing devices in the complementary group, the sensing devices execute the complementary communication standards and add the orthogonal check data to each sent carrier signal when receiving the complementary communication standards, and the sensing devices complete heartbeat synchronization between the sensing devices by receiving the orthogonal check data.
Further, the instruction generating unit includes a time interval configuration database, the time interval configuration database stores sending time interval information, each sending time interval information corresponds to the group data, the instruction generating unit calls the corresponding sending time interval information according to the group data, and generates a sending node plan according to the sending time interval information and the floating demand data, the sending node plan includes a plurality of sending nodes allowing the sensing device to send information, and the instruction generating unit configures priority for each sending node according to the floating demand data to generate the allocation instruction.
Further, supplementary access apparatus includes protocol converter, the passageway and the transmission path of shaking hands, protocol converter is used for the perception equipment to connect, protocol converter includes that two output interface are connected with passageway and transmission path of shaking hands respectively, it sets up in the passageway of shaking hands to shake hands the configuration module, transmission path sets up shielding switch, works as when the passageway of shaking hands is in operating condition, shielding switch ends, works as when the passageway stop work of shaking hands or during the disconnection, shielding switch switches on.
The technical effects of the invention are mainly reflected in the following aspects: through the arrangement, technical attack is developed on key technologies such as efficient access and processing of the sensing equipment of the HPLC internet of things, the field operation management level of the equipment is improved, the communication quality of an HPLC module is improved, the compatibility of a multi-service scene of the HPLC under the condition of the power internet of things on the client side is enhanced, the construction and development requirements of the power internet of things on the client side are researched, and based on a typical HPLC technical application scene of five information physical systems, the novel modularized acquisition terminal is supported, the intelligent terminal is distributed and transformed, the power distribution station area fusion device, the concentrator, the intelligent electric energy meter, the energy controller, the energy router, the edge internet of things agent and other intelligent sensing equipment of the HPLC internet of things are plug-and-play and have mass access. The design requirement of an internet of things cloud platform based on efficient access and processing of HPLC intelligent sensing equipment is researched, and efficient and reliable processing of access data is supported. The design requirements of the ubiquitous power Internet of things of the client side on the HPLC technology are determined, and a foundation is laid for smooth system construction.
Drawings
FIG. 1: the invention discloses a system architecture schematic diagram of a power Internet of things perception equipment networking system;
FIG. 2: the invention discloses an access management server schematic diagram of a power Internet of things perception equipment networking system;
FIG. 3: the invention discloses a handshake configuration module schematic diagram of a power Internet of things perception equipment networking system.
Reference numerals: 100. accessing a management server; 110. accessing a management module; 111. a load counting unit; 120. a channel configuration module; 130. a handshake acquisition module; 131. a handshake monitoring unit; 140. a handshake matching module; 141. a perception device database; 142. a handshake authentication unit; 143. a handshake indexing unit; 150. accessing a distribution module; 151. a frequency band division unit; 152. a demand analysis unit; 153. a group division unit; 154. an instruction generating unit; 1541. a time period configuration database; 160. a matching management module; 161. homogeneous group units; 162. a complementary group unit; 200. a sensing device; 310. a handshake configuration module; 311. a handshake configuration unit; 312. a format conversion unit; 320. a handshake channel; 330. a transmission channel; 331. a shield switch; 340. a protocol converter.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
Referring to fig. 1, a power internet of things sensing device 200 networking system is applied to a power grid architecture based on broadband power line carriers, and includes an access management server 100, a sensing device 200, and an auxiliary access device, where the access management server 100 includes an access management module 110, a channel configuration module 120, a handshake acquisition module 130, a handshake matching module 140, and an access allocation module 150; firstly, explaining the power grid architecture of the whole power line carrier, deeply investigating the requirements on data acquisition after the novel equipment such as a distribution network distribution transformer intelligent terminal, a charging pile, an energy controller and the like is accessed, and researching the overall logic architecture supporting ubiquitous equipment access, real-time data processing and mass data analysis; deeply researching service scenes such as intelligent energy consumption, building control, distributed energy service and the like, collecting requirement change characteristics, analyzing the influence of functional decoupling on application release, and researching a 'micro-service' framework with the characteristics of independent deployment and light communication weight; researching physical technical architectures such as a distributed cache server cluster and a big data computing cluster; based on a logic architecture and a physical architecture, the device security access identity authentication technology and the data security transmission and storage technology are researched, and a comprehensive security protection architecture is constructed. Mainly to novel perception equipment 200, for example the electric wire netting is become and is joined in marriage intelligent terminal, fill electric pile, energy controller etc. and correspond collection terminal, but these perception equipment 200 do not realize the form unified at present, and demand, data content, interface of using all differ, so lead to often need complicated configuration in the communication electric wire netting that inserts a perception equipment 200 HPLC power carrier, and the influence of other equipment also need be considered simultaneously, need carry out independent analysis to this equipment, install, lead to inserting the network deployment complicated. And the present invention has been made to solve the above problems.
Firstly, combing the overall logic architecture, carrying out requirement analysis and evaluation on each level of a communication layer, a storage layer, a computing layer, an application layer and an interface layer, classifying the functions of each level, analyzing the interactive form and the cooperative application among the levels, and summarizing the requirements of service function, system performance, data application and the like. Secondly, based on the SOA system architecture design, starting from aspects of distributed message processing, distributed caching, load balancing and the like, researching a total logic architecture design scheme supporting efficient ubiquitous access, real-time data processing and mass data analysis of the intelligent sensing equipment 200 based on the HPLC; the method comprises the steps of researching service scenes such as intelligent energy consumption and distributed energy service, collecting demand characteristics, analyzing and summarizing factors influencing micro-service division, and researching a design scheme of a micro-service framework with the characteristics of independent deployment and light communication weight. And finally, designing a physical architecture including a distributed cache server cluster, a big data computing cluster, a distributed data server cluster, a network security architecture and the like by combining a logic architecture and business requirements, realizing the cooperative and efficient operation among all levels of the architecture, and providing support for efficient, flexible and ubiquitous access, real-time and efficient acquisition and big data analysis and processing of large-scale client-side equipment. First, a data analysis method running on a memory computing framework is studied. Based on the existing data analysis means and technical support requirements, by combining the characteristics of multiple types and big data of an HPLC intelligent Internet of things, a mainstream memory computing frame in the research industry and a data mining implementation frame based on the memory computing frame are researched, and the data mining method, the data mining algorithm, a corresponding mining process modeling tool and a model analysis operation engine which are operated on the memory computing frame are provided, so that an efficient and rapid analysis mining mode is provided. Secondly, a parallelization analysis framework suitable for data analysis of the HPLC intelligent Internet of things is researched. Aiming at the limitations of the existing data analysis technology in single machine resource limitation, data processing scale and performance, a parallelization analysis framework suitable for HPLC intelligent Internet of things data analysis is researched. Analyzing a mainstream parallel framework in the industry, wherein the mainstream parallel framework comprises a parallel computing framework principle, a parallel programming model, a parallel program development mode and mass data processing application thereof. Thirdly, a distributed multi-data stream instant processing architecture and key technologies are researched. On the basis of researching a distributed processing technology, a flow computing technology and a memory computing technology, the design of a multi-source data real-time processing computing framework in a wide-area distributed environment is developed, the real-time/quasi-real-time processing function of the large data stream of the HPLC intelligent Internet of things based on the parallel processing technology and the flow computing technology is realized, the processing requirement of multi-source heterogeneous mass data is met, and the real-time performance and the scalability processing of the data stream accessed by mass equipment are supported. Finally, on the basis of mastering basic massive data processing algorithms and technologies, a high-expandability parallel computing model based on cloud computing is deeply researched, interface specifications of data access in a cloud computing mode are determined, a large-scale parallel computing basic principle and method are mastered, a data retrieval, sequencing, merging and statistics method is researched, the implementation method is realized according to specific requirements of actual business application, and the construction of an internet of things cloud platform based on efficient access and processing of the HPLC intelligent sensing device 200 is supported.
The access management server 100 is optimized, first, the access management module 110 constructs a frequency band access model according to a real-time device access condition in the power grid architecture, the frequency band access model is generated according to usage information of each device in the power grid architecture, the usage information includes communication type data, communication frequency band data and communication requirement data, the communication type data reflects communication characteristics of the access device, the communication frequency band data reflects a carrier communication frequency band of the access device, and the communication requirement data reflects a communication frequency and a communication data volume of the access device; the sensing equipment 200 which is actually accessed in the power grid architecture can be obtained by constructing a frequency band access model, because equipment such as a power grid concentrator, a smart meter and the like generally tends to be standard, the communication type and the communication frequency band of each equipment can be obtained by only acquiring the model, the data transmission characteristic and the communication frequency band of the existing smart meter in the construction process of the actual model, and classifying the use information by means of information formatting, so that the communication type and the communication requirement of each equipment can be obtained, for example, the communication type of the concentrator A is receiving/transmitting duplex, the communication type of the concentrator B is only used for acquisition, and can be any other communication type, the communication frequency band data reflects the corresponding communication frequency band of the actual equipment in the HPLC networking, and the number of the supported subcarriers loaded with effective data is 490 at most, masked subcarriers are not counted for the useful subcarriers. Wherein sub-carriers No. 0 and sub-carriers No. 491 to 511 are not available. The carrier mask table is defined as a 1-dimensional array, and has 512 elements corresponding to 512 subcarriers (number 0 to number 511), wherein the value of the element 1 in the carrier mask table indicates that the corresponding subcarrier is used, and the value of 0 indicates that the corresponding subcarrier is not used. The recommended set of subcarriers is from subcarrier 80 to subcarrier 490, all used without masking the middle subcarrier or subcarriers, and the extended set of subcarriers is from subcarrier 100 to subcarrier 230, all used without masking the middle subcarrier or subcarriers. Two additional groups are extended, one from subcarrier 32 to subcarrier 120 and the other from subcarrier 72 to subcarrier 120, without masking some or some of the subcarriers in between. No signal is sent on the shielded subcarriers, so that power is saved, and interference to other communication systems is avoided. And one frequency band can be set to be used by a plurality of intelligent sensing devices 200, but the use condition is counted and classified in the above way, and the communication requirement data reflects the communication requirement of the access device, such as the requirement of uploading data for 1 hour of communication, and receives 1 time of instruction, the specific time is time A, then this reflects the load that will be produced at the corresponding time, and according to the communication requirement data also can judge that the frequency band and working time of the accessed equipment can be regulated or not, the access management module 110 includes a load statistics unit 111, the load statistics unit 111 is configured to calculate a frequency band communication load of each communication frequency band in the frequency band access model, the frequency band communication load is generated according to the load correlation value of each group, and the load correlation value reflects the actual load condition of the sensing equipment 200 of the group; the load statistics unit 111 of the access management module 110 may calculate the communication load of the corresponding frequency band in the model, so that the current load amount is formed, for example, if the number of sensing devices 200 in one communication frequency band is large, the requirement for the communication frequency in the communication requirement is high, and the transmission data amount is large, the load of the communication frequency band is large, and the response may consider that the next device is not allocated in the communication frequency band when accessing, and select another communication frequency band.
The channel configuration module 120 is configured to configure an access channel in the power grid architecture of the broadband power line carrier, and send a communication frequency band of the access channel to the auxiliary access device and the handshake acquisition module 130; the second is a channel configuration module 120, which configures an access channel mainly according to a power grid architecture, where it should be noted that the access channel is only used for access, but ordinary communication cannot use the access channel, and the reason for configuring the access channel is as follows, because if the sensing device 200 is accessed, the corresponding communication frequency band may not be suitable for the sensing device 200, a technical scheme for establishing an access channel to access the sensing device 200 is not used at present, but the present invention can ensure an access data format because an auxiliary access device is provided, so that automatic deployment of the sensing device 200 can be completed by using only one access channel, and manual configuration of the access frequency band is not required according to the characteristics of the sensing device 200. However, the frequency band is also a frequency band for subsequent communication of the sensing device 200, but this brings requirements and standards for the frequency band to be suitable for two data transmission, namely, access and daily transmission, and the access requirement may need a large amount of waiting time to be completed or background data may be modified by permission.
The handshake acquisition module 130 includes a handshake monitoring unit 131, the handshake monitoring unit 131 is configured to acquire a communication signal in the power line, and the handshake acquisition module 130 configures the corresponding handshake monitoring unit 131 according to a received communication frequency band; the handshake acquisition module 130 is dedicated to monitoring of a corresponding communication frequency band to acquire a corresponding communication signal.
The handshake matching module 140 is configured with a sensing device 200 database 141, the sensing device 200 database 141 is configured with a plurality of sensing device 200 information, each sensing device 200 information includes sensing classification data and sensing feature data, each sensing device 200 information corresponds to a formatting index, the sensing device 200 database 141 is configured in a pre-established manner, the sensing device 200 information includes sensing classification data and sensing feature data, for example, the sensing classification is a charging post intelligent manager, the sensing feature data is data of a specific data transmission format and the like of the sensing device 200 of a specific type under a situation or a model, so that the sensing device 200 can be classified in advance, the features of the sensing device 200 are directly called from the background, the matching and other work during access is not needed, the access efficiency is improved, and more importantly, a formatting index is established for each sensing device 200, and after information extraction is performed on the individual access logic of each sensing device 200 in the manner of formatting index, the sensing device 200 corresponding to the access request can be easily found in the manner of indexing, the handshake matching module 140 includes a handshake verification unit 142 and a handshake index unit 143, the handshake matching module 140 acquires handshake information from the communication signal, the handshake verification unit 142 verifies handshake identification data in the handshake information, if the verification is completed, the handshake verification unit 142 sends handshake index data in the handshake information to the handshake index unit 143, the handshake index unit 143 generates a corresponding formatting index according to the handshake index data, and then retrieves corresponding sensing device 200 information from the sensing device 200 database 141 according to the formatting index, and sends the sensing device 200 information to the access allocation module 150; the handshake information is obtained from the communication signal, that is, the handshake information is sent by the auxiliary access device, after the corresponding handshake verification unit 142 performs verification, the error data can be reduced, and the index amount can be reduced, and the information of the sensing device 200 can be obtained by formatting the index and then sent to the access allocation module 150, and the access allocation module 150 can perform access allocation according to the indexed information of the sensing device 200.
The access allocation module 150 includes a frequency band dividing unit 151, a requirement analyzing unit 152, a group dividing unit 153, and an instruction generating unit 154;
the frequency band dividing unit 151 determines an allocated frequency band according to the information of the sensing device 200 and the frequency band access model, and firstly divides the frequency band in a first step, because the load of each frequency band in the model is known, the unsuitable frequency band can be obtained through the information of the sensing device 200, and a frequency band with a smaller load is determined from the remaining suitable frequency bands, so that the allocated frequency band of the sensing device 200 can be used, and it should be noted that the reason that the actual access is difficult is that the sensing device 200 has more functions, and the data requirements of different sensing devices 200 under different situations are different corresponding to different power utilization devices, so that if the actual requirements and the field conditions of a user are increased during the access of the sensing device 200, and if the power grid itself is already in use, the data to be exchanged is larger, and the power grid cannot be coordinated and managed, the type, model and other conditions of the sensing device 200 are determined in a simple indexing manner, and then a frequency band is allocated according to the condition, so that the actual demand information can be acquired in the allocated frequency band, and meanwhile, if the sensing device 200 is unknown, the frequency band is allocated, and the data loss is easy to occur.
The demand analysis unit 152 generates demand confirmation information according to the determined allocation frequency band and the sensing device 200 information, and after receiving the actual demand information fed back by the sensing device 200, analyzes the corresponding actual demand information to obtain necessary demand data and floating demand data, generates demand confirmation information through the demand analyzing unit 152, the sensing device 200 can generate the actual demand information in the corresponding frequency band, and then the actual demand information inevitably includes the necessary demand data and the floating demand data, since the communication interaction requirement is set, the more the communication frequency is, the larger the data volume is, the more accurate the analysis result is, the better the control effect is, but in practical use, a plurality of access devices need to be coordinated to ensure the normal operation of each device, therefore, the requirement confirmation information is divided into necessary requirement data and floating requirement data, and corresponding instruction formulation can be carried out according to the result.
The group classification unit 153 groups the sensing devices 200 on the basis of access devices of corresponding allocated frequency bands according to necessary demand data to generate group data, the access allocation module 150 is configured with a type match database, which stores the sensed carrier match values, the sensing carrier matching value reflects the matching relationship between the two sensing devices 200, firstly, a type matching database is established, the relationship between the sensing devices 200 is recorded in the type matching database in advance, the group division unit is configured with a group management policy, which includes calculating load related values of the sensing device 200 and each group in the frequency band access model according to necessary demand data and corresponding sensing carrier matching values, and divides the sensing device 200 into groups whose load-related values meet the first load condition, and generates carrier time characteristic data of the corresponding groups. The access allocation module 150 is configured with a frequency band matching database, the frequency band matching database stores frequency band characteristic data, the frequency band characteristic data reflects an association relationship between information of the sensing device 200 and a communication frequency band, the frequency band division unit 151 screens a communication frequency band meeting conditions from the frequency band access model according to the frequency band characteristic data, and selects a communication frequency band with the minimum frequency band communication load as an allocation frequency band. Although a plurality of frequency bands are established, if a plurality of acquisition devices are arranged on each frequency band, whether the acquisition devices can superpose waveforms or not and whether the acquisition devices need to use the communication function in time-sharing mode or not are related, so that the concept of group is introduced in the invention, the sensing devices 200 which send and occupy channels in the same time-sharing range are determined through the group, namely the time period of using the sensing devices 200 reflected in groups, the sensing device 200 matching value is calculated by establishing the sensing matching value and acquiring the group where the sensing device 200 which is accessed and handshake is positioned and other (including self) sensing devices 200, the sensing device 200 matching value reflects the possibility that the data transmitted by the two sensing devices 200 at the same time cannot be wrong, namely the superposition of the data transmitted by the two sensing devices 200, and the necessary requirement data of each sensing device 200 in the group can reflect the load value in the group, namely the load condition of the group If the load-related value is high, it indicates that the group is connected to the sensing device 200, and an error caused by data collision is very easy to occur, at this time, it is preferable to transmit the sensing device 200 to other groups, and by the first load condition, for example, the group with the lowest load-related value is selected, so that the group division of the sensing device 200 is completed.
The instruction generating unit 154 generates a control distribution instruction according to the floating demand data and the group data, and sends the control distribution instruction to the corresponding sensing device 200; firstly, the instruction distribution unit generates a distribution instruction according to the floating demand data and the group data, wherein the distribution instruction represents how to divide the time, frequency and the like of data output of the access equipment, and particularly realizes the corresponding sending time interval by configuring a database, the instruction generating unit 154 includes a period configuration database 1541, the period configuration database 1541 stores transmission period information, each transmission period information corresponds to group data, the instruction generating unit 154 calls the corresponding transmission period information according to the group data, and generates a transmission node plan according to the transmission period information and the floating demand data, the transmission node plan including a plurality of transmission nodes allowing the sensing device 200 to transmit information, the instruction generation unit 154 configures a priority for each transmitting node according to the floating demand data to generate the allocation instruction. The matching management module 160 further includes a matching correction unit, where the matching correction unit obtains a transmission abnormal log, where the transmission abnormal log includes packet loss, transmission error, and transmission delay, and the matching correction unit corrects the sensing carrier matching value corresponding to the sensing device 200 in the corresponding group according to the transmission abnormal log.
The access management server 100 further includes a matching management module 160, the matching management module 160 includes a similar group unit 161 and a complementary group unit 162, the matching management module 160 retrieves a sensing carrier matching value of each sensing device 200 to form a sensing carrier array, the matching management module 160 is configured with a similar division condition and a complementary division condition, the matching management module 160 divides the sensing device 200 corresponding to the sensing carrier array meeting the similar division condition into the similar group unit 161 and divides the sensing carrier array meeting the complementary division condition into the complementary group unit 162, the similar division condition is that a sensing carrier matching value of the sensing device 200 and a sensing carrier matching value of the similar sensing device 200 is higher than a first preset difference value of sensing carrier matching values of other devices, and the complementary division condition is that a sensing carrier matching value of the sensing device 200 and another sensing device 200 is higher than a second preset difference value of sensing carrier matching values of other devices; the matching management module 160 is intended to establish a special group, and the general group establishment standard is that if there is no group meeting the first load condition, a new group can be established at the idle time of the communication band, but the present invention considers the similar devices and the devices that may have high transmission complementarity, and if the devices are the similar devices, the similar group unit 161 establishes a similar group as a group in the communication band according to the sensing device 200; the similar group unit 161 is configured with a plurality of similar communication standards, each of which includes redundancy-removed data, the access management server sends the similar communication standard to the corresponding sensing device 200 in the similar group, and the sensing device 200 executes the similar communication standard and removes the redundancy-removed data from each sent carrier signal when receiving the similar communication standard, so that the data amount of carrier communication can be reduced, and corresponding necessary data can be restored or analyzed at the access management terminal, thereby improving the data efficiency. For the sensing devices 200 with high complementarity, the complementary group unit 162 establishes a complementary group as a group in the communication band according to two sensing devices 200. The complementary group unit 162 is configured with a plurality of complementary communication standards including orthogonal check data, the access management server sends the complementary communication standards to the corresponding sensing devices 200 in the complementary group, when receiving the complementary communication standards, the sensing devices 200 execute the complementary communication standards and add the orthogonal check data to each sent carrier signal, and the sensing devices 200 complete heartbeat synchronization between the sensing devices 200 by receiving the orthogonal check data. Therefore, the data accuracy of the complementary groups can be uniformly improved.
Another core module of the present invention, the auxiliary access device is connected between the sensing device 200 and the power grid, the auxiliary access device includes a handshake configuration module 310, the handshake configuration module 310 includes a handshake configuration unit 311, a format conversion unit 312, a handshake output unit, and a handshake receiving unit, the handshake configuration unit 311 configures a handshake output unit according to a communication frequency band of an access channel, the format conversion unit 312 configures a formatting policy, the formatting policy receives access information from the sensing device 200 and performs feature extraction on the access information to form handshake index data, the handshake output unit generates handshake information according to the handshake index data and handshake identification data and sends the handshake information to the access management service end 100, the handshake receiving unit is configured to receive requirement confirmation information and send the requirement confirmation information to the corresponding sensing device 200, and meanwhile, generating a frequency band configuration instruction according to the demand confirmation information to configure the carrier output frequency band of the sensing equipment 200 in the power grid. Each auxiliary access device is configured with a corresponding authentication service module, and the authentication service module comprises a mobile receiving unit for receiving the handshake identification data. The auxiliary access device includes a protocol converter 340, a handshake channel 320 and a transmission channel 330, the protocol converter 340 is used for the sensing device 200 to connect, the protocol converter 340 includes two output interfaces respectively connected with the handshake channel 320 and the transmission channel 330, the handshake configuration module 310 is disposed in the handshake channel 320, the transmission channel 330 is disposed with a shielding switch 331, when the handshake channel 320 is in a working state, the shielding switch 331 is turned off, and when the handshake channel 320 stops working or is turned off, the shielding switch 331 is turned on. The purpose of the auxiliary access device is to enable the sensing device 200 with different interfaces, protocols and data formats to quickly identify the device type through a simple indexing mode when accessing, then allocate the communication mode according to the device type matching the corresponding allocation instruction, the handshake configuration unit 311 receives the corresponding communication frequency band, that is, the format generated by the format conversion unit 312 is input to the corresponding entry frequency band, the formatting strategy is to extract the access information output by the sensing device 200 to form handshake index data, and then generate handshake information according to the handshake identification data set by itself or dynamically matched to the auxiliary access device through the mobile network, so that the effect of strong verification can be achieved, and when the terminal verifies and further confirms the corresponding communication requirement, the handshake receiving unit receives the requirement confirmation information, then sending to the sensing device 200, and simultaneously configuring the frequency band of the sensing device 200 directly, at this time, the auxiliary access device can be disconnected, the sensing device 200 completes networking after receiving the allocation instruction, the auxiliary access device has two channels, the handshake channel 320 is in a working state at the beginning, the transmission channel 330 is in a cut-off state, and after switching, the transmission channel 330 is in a conducting state, so that the device can operate normally, the grip component of the auxiliary access device can be used repeatedly, and the assembly of a new auxiliary access device can be completed through the adapter and the transmission channel 330 (a customized transmission line), thereby reducing the cost.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (10)
1. A power Internet of things sensing equipment networking system is applied to a power grid architecture based on broadband power line carriers and is characterized by comprising an access management server, sensing equipment and auxiliary access equipment, wherein the access management server comprises an access management module, a channel configuration module, a handshake acquisition module, a handshake matching module and an access distribution module;
the access management module constructs a frequency band access model according to the real-time equipment access condition in the power grid architecture, the frequency band access model is generated according to the use information of each equipment in the power grid architecture, the use information comprises communication type data, communication frequency band data and communication requirement data, the communication type data reflects the communication characteristics of the access equipment, the communication frequency band data reflects the carrier communication frequency band of the access equipment, and the communication requirement data reflects the communication frequency and the communication data volume of the access equipment;
the channel configuration module is used for configuring an access channel in the power grid framework of the broadband power line carrier and transmitting the communication frequency band of the access channel to the auxiliary access equipment and the handshake acquisition module;
the handshake acquisition module comprises a handshake monitoring unit, the handshake monitoring unit is used for acquiring communication signals in the power line, and the handshake acquisition module is configured with a corresponding handshake monitoring unit according to a received communication frequency band;
the handshake matching module is configured with a sensing equipment database, the sensing equipment database is configured with a plurality of pieces of sensing equipment information, each piece of sensing equipment information comprises sensing classification data and sensing characteristic data, each piece of sensing equipment information corresponds to a formatting index, the handshake matching module comprises a handshake verification unit and a handshake index unit, acquires handshake information from the communication signal, the handshake authentication unit authenticates handshake identification data in the handshake information, and if the authentication is completed, the handshake verification unit sends handshake index data in handshake information to the handshake index unit, the handshake index unit generates a corresponding formatting index according to the handshake index data, then calling corresponding sensing equipment information from the sensing equipment database according to the formatted index, and sending the sensing equipment information to an access distribution module;
the access distribution module comprises a frequency band dividing unit, a demand analysis unit, a group dividing unit and an instruction generating unit, wherein the frequency band dividing unit determines a distribution frequency band according to sensing equipment information and a frequency band access model, the demand analysis unit generates demand confirmation information according to the determined distribution frequency band and the sensing equipment information, and analyzes corresponding actual demand information to obtain necessary demand data and floating demand data after receiving actual demand information fed back by sensing equipment, the group dividing unit groups the sensing equipment on the basis of access equipment of the corresponding distribution frequency band according to the necessary demand data to generate group data, and the instruction generating unit generates a control distribution instruction according to the floating demand data and the group data and sends the control distribution instruction to the corresponding sensing equipment;
the auxiliary access device is connected between the perception device and the power grid, the auxiliary access device comprises a handshake configuration module, the handshake configuration module comprises a handshake configuration unit, a format conversion unit, a handshake output unit and a handshake receiving unit, the handshake configuration unit configures a handshake output unit according to a communication frequency band of an access channel, the format conversion unit is configured with a formatting strategy, the formatting strategy receives access information from the sensing device, and performs characteristic extraction on the access information to form handshake index data, the handshake output unit generates handshake information according to the handshake index data and handshake identification data and sends the handshake information to the access management server, the handshake receiving unit is used for receiving the requirement confirmation information and sending the requirement confirmation information to the corresponding sensing equipment, and meanwhile, generating a frequency band configuration instruction according to the demand confirmation information to configure the carrier output frequency band of the sensing equipment in the power grid.
2. The power internet of things aware device networking system of claim 1, wherein each said secondary access device is configured with a corresponding authentication service module, said authentication service module comprising a mobile receiving unit for receiving said handshake identification data.
3. The networking system of claim 2, wherein the access management module comprises a load statistics unit, the load statistics unit is configured to calculate a frequency band communication load of each communication frequency band in a frequency band access model, the frequency band communication load is generated according to a load correlation value of each group, and the load correlation value reflects an actual load condition of the group of sensing devices;
the access distribution module is configured with a type matching database, the type matching database stores sensing carrier matching values, the sensing carrier matching values reflect the matching relationship between two sensing devices, the group division unit is configured with a grouping management strategy, the grouping management strategy comprises the steps of calculating the load correlation value of each group of the sensing devices and the frequency band access model according to necessary demand data and the corresponding sensing carrier matching values, dividing the sensing devices into groups with the load correlation values meeting a first load condition, and generating carrier time characteristic data of the corresponding group.
4. The networking system of claim 3, wherein the access allocation module is configured with a frequency band matching database, the frequency band matching database stores frequency band characteristic data, the frequency band characteristic data reflects an association relationship between sensing equipment information and communication frequency bands, and the frequency band division unit screens qualified communication frequency bands from the frequency band access model according to the frequency band characteristic data and selects the communication frequency band with the minimum frequency band communication load as the allocation frequency band.
5. The networking system of claim 3, wherein the access management server further comprises a matching management module, the matching management module comprises a similar group unit and a complementary group unit, the matching management module calls a sensing carrier matching value of each sensing device to form a sensing carrier array, the matching management module is configured with a similar division condition and a complementary division condition, the matching management module divides the sensing devices corresponding to the sensing carrier array meeting the similar division condition into the similar group unit and divides the sensing carrier array meeting the complementary division condition into the complementary group unit, the similar division condition is that the sensing carrier matching value of the sensing device and the similar sensing device is higher than a first preset difference value of the sensing carrier matching value of the sensing device and the other sensing device, and the complementary division condition is that the sensing carrier matching value of the sensing device and the other sensing device is higher than the first preset difference value of the sensing carrier matching value of the sensing device and the other sensing device A second preset difference value of the sensing carrier matching value of the equipment;
the same type group unit establishes a same type group as a group in a communication frequency band according to the sensing equipment; the complementary group unit establishes a complementary group as a group in the communication frequency band according to the two sensing devices.
6. The networking system of claim 5, wherein the matching management module further comprises a matching correction unit, the matching correction unit obtains a transmission abnormal log, the transmission abnormal log comprises packet loss, transmission error and transmission delay, and the matching correction unit corrects the sensing carrier matching value corresponding to the sensing device in the corresponding group according to the transmission abnormal log.
7. The networking system of claim 5, wherein the homogeneous group unit is configured with a plurality of homogeneous communication standards, each homogeneous communication standard includes redundancy removal data, the access management server sends the homogeneous communication standard to a corresponding sensing device in the homogeneous group, and the sensing device executes the homogeneous communication standard and removes the redundancy removal data from each sent carrier signal when receiving the homogeneous communication standard.
8. The networking system of claim 5, wherein the complementary group unit is configured with a plurality of complementary communication standards including orthogonal check data, the access management server sends the complementary communication standards to corresponding sensing devices in the complementary group, the sensing devices execute the complementary communication standards and add the orthogonal check data to each sent carrier signal when receiving the complementary communication standards, and the sensing devices complete heartbeat synchronization between the sensing devices by receiving the orthogonal check data.
9. The networking system of claim 1, wherein the instruction generating unit comprises a time interval configuration database, the time interval configuration database stores sending time interval information, each piece of sending time interval information corresponds to group data, the instruction generating unit calls the corresponding sending time interval information according to the group data and generates a sending node plan according to the sending time interval information and floating demand data, the sending node plan comprises a plurality of sending nodes allowing the sensing devices to send information, and the instruction generating unit configures priority for each sending node according to the floating demand data to generate the allocation instruction.
10. The networking system of claim 1, wherein the auxiliary access device comprises a protocol converter, a handshaking channel and a transmission channel, the protocol converter is used for connection of the sensing device, the protocol converter comprises two output interfaces respectively connected with the handshaking channel and the transmission channel, the handshaking configuration module is disposed in the handshaking channel, the transmission channel is provided with a shielding switch, when the handshaking channel is in an operating state, the shielding switch is turned off, and when the handshaking channel stops operating or is turned off, the shielding switch is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111353861.4A CN114070357B (en) | 2021-11-16 | 2021-11-16 | Networking system of power Internet of things sensing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111353861.4A CN114070357B (en) | 2021-11-16 | 2021-11-16 | Networking system of power Internet of things sensing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114070357A CN114070357A (en) | 2022-02-18 |
| CN114070357B true CN114070357B (en) | 2022-07-01 |
Family
ID=80272474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111353861.4A Active CN114070357B (en) | 2021-11-16 | 2021-11-16 | Networking system of power Internet of things sensing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114070357B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410662A (en) * | 2014-10-23 | 2015-03-11 | 山东大学 | Parallel mass data transmitting middleware of Internet of things and working method thereof |
| KR101601141B1 (en) * | 2015-01-22 | 2016-03-08 | 주식회사 럭스로보 | Internet of things system using Platform |
| CN112601221A (en) * | 2020-12-23 | 2021-04-02 | 国网宁夏电力有限公司电力科学研究院 | Internet of things dynamic NTRU access authentication method based on time information |
| CN113595890A (en) * | 2021-08-06 | 2021-11-02 | 江苏方天电力技术有限公司 | Internet of things access gateway system under power grid multi-service application scene |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111641583B (en) * | 2020-04-07 | 2021-09-03 | 北京邮电大学 | Internet of things resource access system and resource access method |
-
2021
- 2021-11-16 CN CN202111353861.4A patent/CN114070357B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410662A (en) * | 2014-10-23 | 2015-03-11 | 山东大学 | Parallel mass data transmitting middleware of Internet of things and working method thereof |
| KR101601141B1 (en) * | 2015-01-22 | 2016-03-08 | 주식회사 럭스로보 | Internet of things system using Platform |
| CN112601221A (en) * | 2020-12-23 | 2021-04-02 | 国网宁夏电力有限公司电力科学研究院 | Internet of things dynamic NTRU access authentication method based on time information |
| CN113595890A (en) * | 2021-08-06 | 2021-11-02 | 江苏方天电力技术有限公司 | Internet of things access gateway system under power grid multi-service application scene |
Non-Patent Citations (1)
| Title |
|---|
| 梁浩宇等.基于多物联技术融合的终端探索.《信息科技II辑》.2021, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114070357A (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103870297B (en) | The performance data collection system and method for virtual machine in cloud computing environment | |
| CN113014449B (en) | Local communication protocol pressure testing method and system of electricity consumption information acquisition system | |
| CN110009201B (en) | Electric power data link system and method based on block chain technology | |
| CN104050920B (en) | LED display control system and asynchronous control card | |
| CN110718947B (en) | Fill electric pile group control distribution timesharing system | |
| CN105991361A (en) | Monitoring method and monitoring system for cloud servers in cloud computing platform | |
| CN110187221B (en) | Power distribution network micro PMU fault recording cooperation method and system based on block chain | |
| CN106375480A (en) | Electric energy data real-time acquisition system and method based on distributed system | |
| WO2021197061A1 (en) | Hybrid networking communication system and method | |
| CN106384495A (en) | Transmission method and transmission device for transparent tasks of electricity consumption information acquisition service | |
| CN114731059A (en) | Power distribution system with network of smart meters | |
| CN108022419A (en) | A kind of parallel communication system and method based on bluetooth and power line carrier | |
| CN102387524B (en) | Indoor distributed monitoring system for WLAN (Wireless Local Area Network) | |
| CN114070357B (en) | Networking system of power Internet of things sensing equipment | |
| CN114200901A (en) | Digital twin oriented virtual power plant communication fault monitoring and control enhancement method | |
| CN113766026A (en) | Data processing method and system applied to energy industrial network | |
| CN111865551A (en) | Device and method for coordinated management of multistage system based on fast bus | |
| CN111064279A (en) | Power failure event reporting test system and method | |
| CN203204423U (en) | Comprehensive service system for network data analysis | |
| CN105721956A (en) | Frame and communication method | |
| CN112636975A (en) | Edge computing gateway network management system | |
| CN114899941A (en) | Electric power system user information acquisition system based on Zigbee Internet of things | |
| CN110221998B (en) | Data acquisition method, device and system and computer storage medium | |
| CN203504577U (en) | Electric energy metering communication testing system based on gatherer and direct collecting table model | |
| CN113055447A (en) | Power equipment state data acquisition and intelligent analysis device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |