CN112804118B - Data transmission method and device based on intelligent ammeter data jump transmission link - Google Patents
Data transmission method and device based on intelligent ammeter data jump transmission link Download PDFInfo
- Publication number
- CN112804118B CN112804118B CN202011641282.5A CN202011641282A CN112804118B CN 112804118 B CN112804118 B CN 112804118B CN 202011641282 A CN202011641282 A CN 202011641282A CN 112804118 B CN112804118 B CN 112804118B
- Authority
- CN
- China
- Prior art keywords
- data
- electric meter
- intelligent electric
- transmission
- service 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
Images
Classifications
-
- 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
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y10/00—Economic sectors
- G16Y10/35—Utilities, e.g. electricity, gas or water
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y10/00—Economic sectors
- G16Y10/75—Information technology; Communication
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y30/00—IoT infrastructure
- G16Y30/10—Security thereof
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Y—INFORMATION AND COMMUNICATION TECHNOLOGY SPECIALLY ADAPTED FOR THE INTERNET OF THINGS [IoT]
- G16Y40/00—IoT characterised by the purpose of the information processing
- G16Y40/50—Safety; Security of things, users, data or systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
Landscapes
- Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Economics (AREA)
- General Business, Economics & Management (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Development Economics (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the application discloses a data transmission method and device based on a data jump transmission link of an intelligent electric meter. According to the technical scheme, a signal test is carried out through a data management node, one intelligent electric meter is selected from electric meter groups to serve as a main node, a data jump transmission link of each intelligent electric meter in the electric meter groups is constructed corresponding to the main node, the data jump transmission link is sent to each intelligent electric meter in the corresponding electric meter groups, a corresponding session key is configured for the main node, and the data jump transmission link identifies data jump transmission objects of each intelligent electric meter in the corresponding electric meter groups and is used for summarizing service data of each intelligent electric meter in the electric meter groups to the main node; and allocating channel transmission resources for each corresponding main node based on the quantity of the intelligent electric meters grouped by each electric meter for service data transmission of each main node. By adopting the technical means, the data can be summarized and transmitted based on the data hopping transmission link, the signal transmission efficiency is improved, and the signal transmission quality is guaranteed.
Description
Technical Field
The embodiment of the application relates to the technical field of power internet of things, in particular to a data transmission method and device based on a data jump transmission link of an intelligent electric meter.
Background
At present, with the development of the internet of things technology, the more power systems originally introduce the internet of things technology to construct a power internet of things system so as to provide more convenient and flexible power operation management. The electric power internet of things is an intelligent service system which is characterized in that modern information technologies such as mobile interconnection, artificial intelligence and the like and advanced communication technologies are fully applied around all links of an electric power system, all things interconnection and man-machine interaction of all links of the electric power system are achieved, and the intelligent service system has the advantages of comprehensive state sensing, efficient information processing and convenient and flexible application. In the power internet of things, automatic collection of user service data is generally realized through an intelligent electric meter, and the collected service data is uploaded to a background server for system services such as data management and the like. The intelligent ammeter executes the services of acquisition and uploading of service data, generation of work logs, safety detection of the ammeter and the like, and the services are that ammeter operation parameter configuration is carried out based on configuration data preset by a data management node, and related services are executed according to the operation parameters.
However, when the smart meter transmits data to the data management node, the smart meter is affected by signal deep fading due to a long communication distance, which easily causes unstable data transmission, poor signal quality, and the like.
Disclosure of Invention
The embodiment of the application provides a data transmission method and device based on a data hopping transmission link of an intelligent electric meter, which can gather and transmit data based on the data hopping transmission link, improve the signal transmission efficiency and guarantee the signal transmission quality.
In a first aspect, an embodiment of the present application provides a data transmission method based on a data hopping transmission link of a smart meter, including:
the method comprises the steps that a data management node divides each intelligent electric meter into a plurality of electric meter groups according to the regional position, receives test signals sent by each intelligent electric meter in the electric meter groups, determines corresponding signal quality parameters based on the test signals, selects one intelligent electric meter from the electric meter groups as a main node based on the signal quality parameters, constructs data hopping transmission links of each intelligent electric meter in the electric meter groups corresponding to the main node, sends the data hopping transmission links to each intelligent electric meter in the corresponding electric meter groups, configures corresponding session keys for the main node, and marks data hopping transmission objects of each intelligent electric meter in the corresponding electric meter groups for summarizing service data of each intelligent electric meter in the electric meter groups to the main node;
allocating channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter for service data transmission of each main node;
when each intelligent electric meter grouped by the electric meters uploads service data, service data are relayed to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using the session key, and transmits the service data to the data management node based on the channel transmission resource;
and the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data.
Further, after the data management node receives the service data sent by each host node, the method further includes:
and counting the service volume of each ammeter group based on the service data uploaded by each main node in a set time period, and modifying the channel transmission resource distribution weight of each main node according to the service volume.
Further, constructing a data jump transmission link of each smart meter in the meter group corresponding to the master node includes:
and selecting data jump transmission objects of the intelligent electric meters according to the distance between the intelligent electric meters and the main node and constructing corresponding data jump transmission links.
Further, selecting one smart meter from the meter group as a master node based on the signal quality parameter, and after constructing a data jump transmission link of each smart meter in the meter group corresponding to the master node, the method further includes:
and the data management node conducts signal test of the intelligent electric meters grouped by the electric meters again every other test period, and reconstructs a new data jump transmission link based on a new signal test result.
Further, after configuring the corresponding session key for the master node, the method further includes:
and updating each session key to the corresponding main node by the data management node every other set session security management period.
Further, modifying the corresponding data hopping transmission link based on a signal quality parameter detection result or an error rate detection result of the corresponding service data includes:
and when the detection result of the signal quality parameter corresponding to the service data is lower than the set signal quality threshold value after the continuous set times are detected, or the error rate detection result of the corresponding service data reaches the set error rate threshold value, selecting one intelligent electric meter from the corresponding electric meter group again as a new main node, and modifying the corresponding data jump transmission link based on the new main node.
Further, the method for skipping and transmitting service data to the main node based on the corresponding data skipping link also comprises
And each intelligent electric meter adds an identity label in service data and jumps the service data to the main node based on the corresponding data jump transmission link.
In a second aspect, an embodiment of the present application provides a data transmission device based on a data hopping transmission link of a smart meter, including:
the system comprises a construction module, a data management node, a master node and a data skipping link, wherein the construction module is used for dividing each intelligent electric meter into a plurality of electric meter groups according to the region position through the data management node, receiving a test signal sent by each intelligent electric meter in the electric meter groups, determining corresponding signal quality parameters based on the test signal, selecting one intelligent electric meter from the electric meter groups as the master node based on the signal quality parameters, constructing a data skipping link of each intelligent electric meter in the electric meter groups corresponding to the master node, sending the data skipping link to each intelligent electric meter in the corresponding electric meter groups, configuring a corresponding session key for the master node, and identifying data skipping objects of each intelligent electric meter in the corresponding electric meter groups for summarizing service data of each intelligent electric meter in the electric meter groups to the master node;
the distribution module is used for distributing channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter, and is used for transmitting service data of each main node;
the transmission module is used for jumping and transmitting service data to the main node based on the corresponding data jumping transmission link when each intelligent electric meter grouped by the electric meters uploads the service data, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using the session key, and transmits the service data to the data management node based on the channel transmission resource;
and the modification module is used for receiving the service data sent by each main node through the data management node and modifying the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data.
In a third aspect, an embodiment of the present application provides an electronic device, including:
a memory and one or more processors;
the memory for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the data transmission method based on the data hopping link of the smart meter according to the first aspect.
In a fourth aspect, the present application provides a storage medium containing computer executable instructions, which when executed by a computer processor, are used to perform the data transmission method based on the data hopping link of the smart meter according to the first aspect.
According to the method, each intelligent electric meter is divided into a plurality of electric meter groups according to the region position through a data management node, a test signal sent by each intelligent electric meter in the electric meter group is received, a corresponding signal quality parameter is determined based on the test signal, one intelligent electric meter is selected from the electric meter groups as a main node based on the signal quality parameter, a data jump transmission link of each intelligent electric meter in the electric meter group is constructed corresponding to the main node, the data jump transmission link is sent to each intelligent electric meter in the corresponding electric meter group, a corresponding session key is configured for the main node, the data jump transmission link identifies a data jump transmission object of each intelligent electric meter in the corresponding electric meter group, and the data jump transmission link is used for summarizing service data of each intelligent electric meter in the electric meter group to the main node; allocating channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter, wherein the channel transmission resources are used for transmitting service data of each main node; when each intelligent electric meter grouped by the electric meters uploads service data, service data are relayed to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using a session key, and transmits the service data to the data management node based on channel transmission resources; and the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data. By adopting the technical means, the data can be summarized and transmitted based on the data hopping transmission link, the signal transmission efficiency is improved, and the signal transmission quality is guaranteed. And the reasonable allocation of resources is signaled so as to make reasonable use of channel resources. The data jump transmission link is modified through service data detection, so that normal transmission of service data can be guaranteed, and processing of system services is optimized.
Drawings
Fig. 1 is a flowchart of a data transmission method based on a data jump transmission link of a smart meter according to an embodiment of the present application;
FIG. 2 is a schematic diagram of signal testing in the first embodiment of the present application;
fig. 3 is a schematic diagram of service data transmission in the first embodiment of the present application;
fig. 4 is a processing flow chart of the power internet of things in the first embodiment of the present application;
fig. 5 is a schematic structural diagram of a data transmission device based on a data hopping link of a smart meter according to a second embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, subprograms, and the like.
The first embodiment is as follows:
fig. 1 is a flowchart of a data transmission method based on a data hopping link of a smart meter according to an embodiment of the present application, where the data transmission method based on the data hopping link of the smart meter according to the present embodiment may be executed by data transmission equipment based on the data hopping link of the smart meter, the data transmission equipment based on the data hopping link of the smart meter may be implemented in a software and/or hardware manner, and the data transmission equipment based on the data hopping link of the smart meter may be formed by two or more physical entities or may be formed by one physical entity. Generally speaking, the data transmission device based on the data hopping transmission link of the smart meter can be a power internet of things system
The following description will be given by taking a data transmission device based on the data hopping transmission link of the smart meter as an example of a main body for executing the data transmission method based on the data hopping transmission link of the smart meter. Referring to fig. 1, the data transmission method based on the data hopping transmission link of the smart meter specifically includes:
s110, a data management node divides each intelligent electric meter into a plurality of electric meter groups according to the regional position, receives a test signal sent by each intelligent electric meter in the electric meter groups, determines a corresponding signal quality parameter based on the test signal, selects one intelligent electric meter from the electric meter groups as a main node based on the signal quality parameter, constructs a data jump transmission link of each intelligent electric meter in the electric meter groups corresponding to the main node, sends the data jump transmission link to each intelligent electric meter in the corresponding electric meter groups, configures a corresponding session key for the main node, and identifies a data jump transmission object of each intelligent electric meter in the corresponding electric meter groups for summarizing service data of each intelligent electric meter in the electric meter groups to the main node.
The data transmission method based on the data hopping transmission link of the intelligent electric meter aims at determining the signal quality of signal communication between each intelligent electric meter grouped by the electric meters and the data management node through signal testing, further selecting the main node of the electric meter grouped according to the signal quality, generating the corresponding data hopping transmission link and issuing the data hopping transmission link to each intelligent electric meter. Each intelligent electric meter selects the jump transmission object to jump transmit the service data according to the data jump transmission link, and performs signal test when the service data jump transmits, and detects the signal quality parameter or the error rate of the service data, so as to judge whether to modify the corresponding data jump transmission link, thereby ensuring the high-quality transmission of the service data and optimizing the service operation of the system.
Specifically, referring to fig. 2, in the embodiment of the present application, the data management node 11 is configured to process service data of each smart meter 12, so as to implement relevant service processing and operation of the power internet of things system. In the electric power Internet of things system, the intelligent electric meter system comprises a plurality of intelligent electric meters 12 and a data management node 11, wherein each intelligent electric meter is distributed at each position in the communication range of an Internet of things gateway. When different intelligent electric meters perform service data interaction with the data management node, the signal quality is different under the influence of signal multipath fading. In order to optimize the signal transmission effect and reduce the influence of signal attenuation, for part of the smart meters with relatively poor signal communication quality with the data management node, other smart meters can be selected as a communication relay, and the communication relay is utilized to jump-transmit the service data to the data management node, so that the better service data transmission performance is ensured. And, considering that the distribution position of the smart electric meter may be relatively far, long-distance jump transmission of service data may affect the data transmission quality. Therefore, according to the embodiment of the application, the intelligent electric meters are grouped according to different region positions, and the intelligent electric meters are divided into a plurality of electric meter groups. And then, signal testing of each intelligent electric meter is carried out on the basis of electric meter grouping of different region positions. Referring to fig. 2, each smart meter 12 sends a test signal to the data management node 11, performs a signal test, and determines a master node of a current meter group based on a signal test result.
The signal quality parameters corresponding to the intelligent electric meters are determined according to the test signals, and then the intelligent electric meter with the largest signal quality parameter can be selected from the electric meter groups as a main node based on the signal quality parameters. Specifically, the signal quality parameter value of the test signal is determined by the corresponding signal received power, signal received strength, channel instantaneous quality value and/or interference signal strength. Wherein the channel instantaneous quality value represents the channel quality, channel matrix feedback, signal response, and/or interference information for the corresponding signal receiving antenna. And measuring the various types of parameters through the corresponding test signals and the antenna parameters. Further, in order to quantize the signal quality parameter, a calculation formula of the signal quality parameter is provided to quantize the signal quality of the test signal, and the calculation formula of the signal quality parameter is:
f＝ω 1 P+ω 2 d 1 +ω 3 h+ω 4 d 2
where f is the signal quality parameter value, P is the signal received power, d 1 For signal received strength, h is the instantaneous channel quality value, d 2 For interfering signal strength, omega 1 ，ω 2 ，ω 3 And ω 4 The influence factors are determined according to actual tests and can be set according to the actual influence of each type of parameter on the signal quality parameter value. Based on the signal quality parameter calculation formula, the signal quality parameters of the test signals can be determined. It should be noted that, in practical applications, according to different signal quality evaluation criteria, a plurality of different manners may be selected to evaluate the signal quality parameters of each test signal, and a corresponding quantization formula is set accordingly. The above formula is only one calculation method for calculating the signal quality parameter in the embodiment of the present application, and various different measurement and calculation formulas may be selected according to actual measurement and calculation requirements, which is not described herein again.
And determining the signal quality parameters of the test signals of each intelligent ammeter based on the signal quality parameter calculation mode, and selecting the intelligent ammeter with the largest signal quality parameter as a main node of the current ammeter group based on the signal quality parameters. And further constructing a data jump transmission link corresponding to the main node, wherein the data jump transmission object of each intelligent electric meter is selected according to the distance between each intelligent electric meter and the main node, and the corresponding data jump transmission link is constructed. And the main node is used as a terminal point of the data jump transmission link and is used for summarizing the service data of each intelligent electric meter in the electric meter group and uploading the service data to the data management node. When a data hopping transmission link is constructed, the data management node takes the rest intelligent electric meters in the electric meter group as subordinate nodes of the main node, and the hopping transmission objects of the intelligent electric meters are determined from far to near based on the distance between each subordinate node and the main node. It can be understood that if a node closest to a certain smart meter is a master node, the smart meter takes the master node as a skip transmission object; if the node closest to a certain intelligent electric meter is another intelligent electric meter and the another intelligent electric meter is closer to the main node, the intelligent electric meter takes the another intelligent electric meter as a jump transmission object. And each intelligent electric meter selects a jump transmission object according to the distance between the intelligent electric meter and the main node, and then the data jump transmission link is constructed. After the data jump transmission link is constructed, the data management node sends the data jump transmission link to each intelligent electric meter in the corresponding data jump transmission link so as to inform each intelligent electric meter of the current data jump transmission link to jump-transmit and gather service data to the main node according to the jump transmission object indicated by the data jump transmission link. It can be understood that, based on the data hopping transmission link, when each smart meter performs service data hopping transmission, a hopping transmission object of the service data of the smart meter can be determined from the data hopping transmission link, and then the service data is hopped to the hopping transmission object, so that the service data of each smart meter is hopped and summarized step by step in the data hopping transmission link, that is, the collection of the service data by the master node can be completed. The service data skip transmission object is selected nearby through the intelligent electric meter, the service data are transmitted in a short communication distance, so that the influence of signal fading is reduced, the stability of data transmission is guaranteed, and the transmission quality of the service data is improved.
By referring to the above manner, the data jump transmission link of each electric meter group can be correspondingly constructed. In addition, the data management node further distributes session keys to the main nodes of each electricity meter group, the session keys obtained by each main node are different, and the security of service data transmission can be guaranteed by distributing the session keys to each main node.
In one embodiment, the data management node conducts signal test of the electric meter grouping intelligent electric meters again every other test period, and a new data jump transmission link is reconstructed based on a new signal test result. Considering that the data transmission network is influenced by various factors, the data transmission quality of the data transmission network also changes in real time. In order to guarantee the transmission quality of service data, it is necessary to ensure that good data transmission performance is maintained between the data management node and the master node in real time. Based on this, the embodiment of the application performs the periodic signal test of grouping each intelligent ammeter corresponding to the ammeter by setting the time period, and obtains the signal test result of each intelligent ammeter and the data management node by referring to the signal test mode of the data management node. Based on the new signal test results, it can be determined whether to perform a master node reselection. If the signal transmission quality of the original master node and the data management node is found to be optimal according to the signal test result, the master node does not need to be reselected, otherwise, the master node needs to be reselected. It can be understood that after the master node is determined again, a data hopping transmission link needs to be reconstructed corresponding to the distance between the new master node and each smart meter grouped currently for service data transmission, so that the stability of service transmission is guaranteed in real time.
In an embodiment, every other set session security management period, the data management node updates each session key to the corresponding master node. It can be understood that the difficulty of session key cracking can be increased by periodically updating the session key, and the situation that the session key is easily cracked to cause stealing and tampering of the service data is avoided. Therefore, the safety of service data transmission is improved, and the operation of the power internet of things is optimized.
And S120, allocating channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter, and using the channel transmission resources for service data transmission of each main node.
Further, after the construction of the data hopping transmission link of the electric meter packet is completed, the embodiment of the application further allocates the channel transmission resources corresponding to each master node. The channel transmission resource is used for each main node to transmit the service data. And setting bandwidth distribution weights corresponding to the intelligent electric meters according to the quantity of the intelligent electric meters grouped by the electric meters, and distributing channel transmission resources based on the bandwidth distribution weights. The electric meter groups with the relatively large number of the intelligent electric meters are corresponding to the main node to be distributed with more channel transmission resources, and the electric meter groups with the relatively small number of the intelligent electric meters are corresponding to the main node to be distributed with relatively less channel transmission resources. Through reasonable distribution of channel transmission resources, the situation that the electric meters with less network resource requirements occupy too much bandwidth in groups can be avoided, and the utilization rate of network resources is further improved.
In one embodiment, the data management node counts the traffic volume of each electricity meter group based on the service data uploaded by each main node in a set time period, and modifies the channel transmission resource allocation weight of each main node according to the traffic volume. The data management node can determine the service volume of each ammeter group by counting the service data uploaded by each main node in a set time period. The channel transmission resource distribution weight (namely, the bandwidth distribution weight) distributed before is modified according to the traffic, so that the reasonable distribution of the channel transmission resource can be guaranteed in real time, and the utilization rate of the network resource is further improved.
S130, when each intelligent electric meter grouped by the electric meters uploads service data, service data are relayed to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, the session key is used for encrypting the service data, and the service data are transmitted to the data management node based on the channel transmission resource.
Specifically, referring to fig. 3, when the smart meters of each meter group perform service data transmission, the service data transmission is performed according to the data hopping link issued by the data management node 11. The smart meter 12 determines its own service data skip transmission object by querying the data skip transmission link, and then skips and transmits the service data to the skip transmission object. Referring to the above manner, each smart meter 12 transmits service data according to the hop transmission object identified by the data hop transmission link, and finally summarizes the service data to the end point of the data hop transmission link, that is, the master node of the current meter group.
When transmitting the service data, each smart meter 12 adds its own identity to the service data, and skips the service data to the host node based on the corresponding data skip link. Further, after summarizing the service data of each smart meter 12, the master node encrypts the service data by using the session key issued in advance and sends the encrypted service data to the data management node 11. It can be understood that by adding the identity of each smart meter in the service data, the data management node makes clear which smart meter the service data comes from, so as to facilitate the service processing of each smart meter.
S140, the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data.
After the data management node receives the service data transmitted by each main node, the data management node further performs signal quality parameter detection or error rate detection on the service data corresponding to the received service data to obtain a corresponding signal quality parameter detection result or error rate detection result. The signal quality parameter detection result or the error rate detection result represents the signal transmission performance between the current master node and the data management node. If the signal quality parameter detection result of the corresponding service data is lower than the set signal quality threshold value after the continuous set times are detected, or the error rate detection result of the corresponding service data reaches the set error rate threshold value, selecting one intelligent electric meter from the corresponding electric meter group again to serve as a new main node, and modifying the corresponding data hopping transmission link based on the new main node. It can be understood that, if the signal quality parameter detection result is lower than the set signal quality threshold, or the bit error rate detection result reaches the set bit error rate threshold, it indicates that the signal transmission performance between the current master node and the data management node is relatively poor, and in order to avoid affecting the transmission of the service data, the master node corresponding to the electricity meter group needs to be changed at this time. According to the signal test result of the step S110, a smart meter (except for the original master node) with the largest signal quality parameter is reselected as the master node, and then a data hopping transmission link is constructed based on the new master node with reference to the data hopping transmission link construction method of the step S110. And the intelligent electric meters grouped corresponding to the electric meters are enabled to carry out service data summarization and transmission based on the new data hopping transmission link.
Referring to fig. 4, in the embodiment of the application, each smart meter is divided into a plurality of meter groups according to the area position by a data management node, a test signal sent by each smart meter in the meter group is received, a corresponding signal quality parameter is determined based on the test signal, one smart meter is selected from the meter groups as a master node based on the signal quality parameter, a data hopping link of each smart meter in the meter group is constructed corresponding to the master node, the data hopping link is sent to each smart meter in the corresponding meter group, a corresponding session key is configured for the master node, the data hopping link identifies a data hopping object of each smart meter in the corresponding meter group, and service data of each smart meter in the meter group is summarized to the master node; allocating channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter, wherein the channel transmission resources are used for service data transmission of each main node; when each intelligent electric meter grouped by the electric meters uploads service data, service data are relayed to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using a session key, and transmits the service data to the data management node based on channel transmission resources; and the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data. By adopting the technical means, the data can be summarized and transmitted based on the data hopping transmission link, the signal transmission efficiency is improved, and the signal transmission quality is guaranteed. And the reasonable allocation of resources is signaled so as to make reasonable use of channel resources. The data jump transmission link is modified through service data detection, so that normal transmission of service data can be guaranteed, and processing of system services is optimized.
The second embodiment:
on the basis of the foregoing embodiment, fig. 5 is a schematic structural diagram of a data transmission device based on a data hopping transmission link of an intelligent electric meter according to a second embodiment of the present application. Referring to fig. 5, the data transmission device based on the data hopping transmission link of the smart meter provided in this embodiment specifically includes: a building module 21, an allocation module 22, a transmission module 23 and a modification module 24.
The construction module 21 is configured to divide each smart meter into a plurality of meter groups according to an area location through a data management node, receive a test signal sent by each smart meter in the meter group, determine a corresponding signal quality parameter based on the test signal, select one smart meter from the meter groups as a master node based on the signal quality parameter, construct a data hopping link of each smart meter in the meter group corresponding to the master node, send the data hopping link to each smart meter in the corresponding meter group, and configure a corresponding session key for the master node, where the data hopping link identifies a data hopping object of each smart meter in the corresponding meter group, and is used to summarize service data of each smart meter in the meter group to the master node;
the allocation module 22 is configured to allocate channel transmission resources to each corresponding master node based on the number of the smart meters grouped by each meter, so as to transmit service data of each master node;
the transmission module 23 is configured to, when uploading service data, skip the service data to the master node based on the corresponding data skip transmission link through each smart meter grouped by the meters, where the master node summarizes the service data of each smart meter, encrypts the service data using the session key, and transmits the service data to the data management node based on the channel transmission resource;
the modification module 24 is configured to receive, by the data management node, service data sent by each host node, and modify the corresponding data hopping transmission link based on a signal quality parameter detection result or an error rate detection result of the corresponding service data.
The method includes the steps that each intelligent electric meter is divided into a plurality of electric meter groups according to the region position through a data management node, test signals sent by each intelligent electric meter in the electric meter groups are received, corresponding signal quality parameters are determined based on the test signals, one intelligent electric meter is selected from the electric meter groups as a main node based on the signal quality parameters, a data hopping transmission link of each intelligent electric meter in the electric meter groups is constructed corresponding to the main node, the data hopping transmission link is sent to each intelligent electric meter in the corresponding electric meter groups, a corresponding session key is configured for the main node, the data hopping transmission link identifies a data hopping transmission object of each intelligent electric meter in the corresponding electric meter groups, and service data of each intelligent electric meter in the electric meter groups are collected to the main node; allocating channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter, wherein the channel transmission resources are used for transmitting service data of each main node; when each intelligent electric meter grouped by the electric meters uploads service data, service data are hopped to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using a session key, and transmits the service data to the data management node based on channel transmission resources; and the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data. By adopting the technical means, the data can be summarized and transmitted based on the data hopping transmission link, the signal transmission efficiency is improved, and the signal transmission quality is guaranteed. And the reasonable allocation of resources is signaled so as to make reasonable use of channel resources. The data jump transmission link is modified through service data detection, so that normal transmission of service data can be guaranteed, and processing of system services is optimized.
The data transmission device based on the data hopping transmission link of the smart meter provided by the second embodiment of the application can be used for executing the data transmission method based on the data hopping transmission link of the smart meter provided by the first embodiment of the application, and has corresponding functions and beneficial effects.
Example three:
an embodiment of the present application provides an electronic device, and with reference to fig. 6, the electronic device includes: a processor 31, a memory 32, a communication module 33, an input device 34, and an output device 35. The number of processors in the electronic device may be one or more, and the number of memories in the electronic device may be one or more. The processor, memory, communication module, input device, and output device of the electronic device may be connected by a bus or other means.
The memory 32 is a computer-readable storage medium, and can be used for storing software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the data transmission method based on the data hopping link of the smart meter according to any embodiment of the present application (for example, a building module, an allocating module, a transmitting module, and a modifying module in the data transmission device based on the data hopping link of the smart meter). The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to use of the device, and the like. Further, the memory may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory may further include memory remotely located from the processor, which may be connected to the device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The communication module 33 is used for data transmission.
The processor 31 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory, that is, the data transmission method based on the data hopping transmission link of the smart meter is realized.
The input device 34 may be used to receive entered numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 35 may include a display device such as a display screen.
The electronic device provided by the above can be used to execute the data transmission method based on the data hopping transmission link of the smart meter provided by the first embodiment, and has corresponding functions and beneficial effects.
Example four:
the embodiment of the present application further provides a storage medium containing computer executable instructions, where the computer executable instructions, when executed by a computer processor, are configured to perform a data transmission method based on a data hopping link of a smart meter, where the data transmission method based on the data hopping link of the smart meter includes: the method comprises the steps that a data management node divides each intelligent electric meter into a plurality of electric meter groups according to the regional position, receives test signals sent by each intelligent electric meter in the electric meter groups, determines corresponding signal quality parameters based on the test signals, selects one intelligent electric meter from the electric meter groups as a main node based on the signal quality parameters, constructs data hopping transmission links of each intelligent electric meter in the electric meter groups corresponding to the main node, sends the data hopping transmission links to each intelligent electric meter in the corresponding electric meter groups, configures corresponding session keys for the main node, and marks data hopping transmission objects of each intelligent electric meter in the corresponding electric meter groups for summarizing service data of each intelligent electric meter in the electric meter groups to the main node; allocating channel transmission resources for each corresponding main node based on the number of the smart electric meters grouped by each electric meter for service data transmission of each main node; when each intelligent electric meter grouped by the electric meters uploads service data, service data are relayed to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using the session key, and transmits the service data to the data management node based on the channel transmission resource; and the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system connected to the first computer system through a network (such as the internet). The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media residing in different locations, e.g., in different computer systems connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the data transmission method based on the data hopping link of the smart meter described above, and may also perform related operations in the data transmission method based on the data hopping link of the smart meter provided in any embodiment of the present application.
The data transmission device, the storage medium, and the electronic device based on the data hopping transmission link of the smart meter provided in the above embodiments may execute the data transmission method based on the data hopping transmission link of the smart meter provided in any embodiment of the present application, and reference may be made to the data transmission method based on the data hopping transmission link of the smart meter provided in any embodiment of the present application without detailed technical details in the above embodiments.
The foregoing is considered as illustrative only of the preferred embodiments of the invention and the principles of the technology employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (7)
1. A data transmission method based on a data jump transmission link of an intelligent electric meter is characterized by comprising the following steps:
the method comprises the steps that a data management node divides each intelligent electric meter into a plurality of electric meter groups according to the regional position, receives test signals sent by each intelligent electric meter in the electric meter groups, determines corresponding signal quality parameters based on the test signals, selects one intelligent electric meter from the electric meter groups as a main node based on the signal quality parameters, constructs data hopping transmission links of each intelligent electric meter in the electric meter groups corresponding to the main node, sends the data hopping transmission links to each intelligent electric meter in the corresponding electric meter groups, configures corresponding session keys for the main node, and marks data hopping transmission objects of each intelligent electric meter in the corresponding electric meter groups for summarizing service data of each intelligent electric meter in the electric meter groups to the main node; every other set session security management period, the data management node updates each session key to the corresponding main node;
allocating channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter for service data transmission of each main node;
when each intelligent electric meter grouped by the electric meters uploads service data, service data are relayed to the main node based on the corresponding data hopping transmission link, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using the session key, and transmits the service data to the data management node based on the channel transmission resource;
the data management node receives the service data sent by each main node, and modifies the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data;
counting the service volume of each ammeter group based on the service data uploaded by each main node in a set time period, and modifying the channel transmission resource allocation weight of each main node according to the service volume;
modifying the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data, comprising:
when the detection result of the signal quality parameter corresponding to the service data is lower than the set signal quality threshold value after the continuous set times are detected, or the error rate detection result of the corresponding service data reaches the set error rate threshold value, selecting an intelligent electric meter from the corresponding electric meter group again as a new main node, and modifying the corresponding data jump transmission link based on the new main node;
the calculation formula of the signal quality parameter is as follows:
f＝ω 1 P+ω 2 d 1 +ω 3 h+ω 4 d 2
where f is the signal quality parameter value, P is the signal received power, d 1 For signal received strength, h is the instantaneous quality value of the channel, d 2 For the interference signal strength, ω 1, ω 2, ω 3, and ω 4 are corresponding influence factors, respectively, and the influence factors are determined according to actual tests.
2. The data transmission method based on the data hopping link of the intelligent electric meters according to claim 1, wherein the step of constructing the data hopping link of each intelligent electric meter in the electric meter group corresponding to the master node comprises the following steps:
and selecting the data jump transmission object of each intelligent electric meter according to the distance between each intelligent electric meter and the main node and constructing a corresponding data jump transmission link.
3. The data transmission method based on the data hopping link of the smart meters according to claim 1, wherein after one smart meter is selected from the meter grouping as a master node based on the signal quality parameter and the data hopping link of each smart meter in the meter grouping is constructed corresponding to the master node, the method further comprises:
and the data management node performs signal test on the intelligent electric meters grouped by the electric meters again every other test period, and reconstructs a new data jump transmission link based on a new signal test result.
4. The data transmission method based on the data hopping transmission link of the smart meter according to claim 1, wherein service data is hopped to the master node based on the corresponding data hopping transmission link, further comprising:
and each intelligent electric meter adds an identity label in service data and jumps the service data to the main node based on the corresponding data jump transmission link.
5. The utility model provides a data transmission device based on smart electric meter data jump transmission link which characterized in that includes:
the system comprises a construction module, a data management node and a master node, wherein the construction module is used for dividing each intelligent electric meter into a plurality of electric meter groups according to the region position through the data management node, receiving a test signal sent by each intelligent electric meter in the electric meter groups, determining a corresponding signal quality parameter based on the test signal, selecting one intelligent electric meter from the electric meter groups as the master node based on the signal quality parameter, constructing a data hopping link of each intelligent electric meter in the electric meter groups corresponding to the master node, sending the data hopping link to each intelligent electric meter in the corresponding electric meter group, configuring a corresponding session key for the master node, and identifying a data hopping object of each intelligent electric meter in the corresponding electric meter group through the data hopping link for summarizing the service data of each intelligent electric meter in the electric meter groups to the master node; every other set session security management period, the data management node updates each session key to the corresponding master node;
the distribution module is used for distributing channel transmission resources for each corresponding main node based on the number of the intelligent electric meters grouped by each electric meter, and is used for transmitting service data of each main node;
the transmission module is used for jumping and transmitting service data to the main node based on the corresponding data jumping transmission link when each intelligent electric meter grouped by the electric meters uploads the service data, the main node summarizes the service data of each intelligent electric meter, encrypts the service data by using the session key, and transmits the service data to the data management node based on the channel transmission resource;
the modification module is used for receiving the service data sent by each main node through the data management node and modifying the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data;
counting the service volume of each ammeter group based on the service data uploaded by each main node in a set time period, and modifying the channel transmission resource distribution weight of each main node according to the service volume;
modifying the corresponding data hopping transmission link based on the signal quality parameter detection result or the error rate detection result of the corresponding service data, including:
when the detection result of the signal quality parameter corresponding to the service data is lower than the set signal quality threshold value after the continuous set times are detected, or the error rate detection result of the corresponding service data reaches the set error rate threshold value, selecting an intelligent electric meter from the corresponding electric meter group again as a new main node, and modifying the corresponding data jump transmission link based on the new main node;
the calculation formula of the signal quality parameter is as follows:
f＝ω 1 P+ω 2 d 1 +ω 3 h+ω 4 d 2
where f is the signal quality parameter value, P is the signal received power, d 1 For signal received strength, h is the instantaneous channel quality value, d 2 For the interference signal strength, ω 1, ω 2, ω 3, and ω 4 are corresponding influence factors, respectively, and the influence factors are determined according to actual tests.
6. An electronic device, comprising:
a memory and one or more processors;
the memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method for data transmission based on the data hopping link of the smart meter according to any one of claims 1 to 4.
7. A storage medium containing computer executable instructions, wherein the computer executable instructions when executed by a computer processor are used for executing the data transmission method based on the data jump transmission link of the smart meter according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641282.5A CN112804118B (en) | 2020-12-31 | 2020-12-31 | Data transmission method and device based on intelligent ammeter data jump transmission link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641282.5A CN112804118B (en) | 2020-12-31 | 2020-12-31 | Data transmission method and device based on intelligent ammeter data jump transmission link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112804118A CN112804118A (en) | 2021-05-14 |
| CN112804118B true CN112804118B (en) | 2023-01-31 |
Family
ID=75809144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011641282.5A Active CN112804118B (en) | 2020-12-31 | 2020-12-31 | Data transmission method and device based on intelligent ammeter data jump transmission link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112804118B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114745610B (en) * | 2022-04-01 | 2023-02-07 | 国网山东省电力公司平度市供电公司 | Device for improving data acquisition accuracy of ammeter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932751A (en) * | 2012-10-17 | 2013-02-13 | 中国联合网络通信集团有限公司 | Internet of Things data transmission method and Internet of Things |
| CN104270751A (en) * | 2014-04-19 | 2015-01-07 | 湘潭大学 | Security protocol based on received signal intensity in wireless sensor network |
| CN105245326A (en) * | 2015-09-10 | 2016-01-13 | 电子科技大学 | Intelligent power grid safety communication method based on combination cipher |
| JP2016072782A (en) * | 2014-09-30 | 2016-05-09 | 株式会社日立製作所 | Automatic meter reading system and method for communicating data obtained by automatic meter reading |
| CN111223284A (en) * | 2020-01-19 | 2020-06-02 | 广州地铁集团有限公司 | Platform door intelligent sensing and evaluation system and method based on wireless data jump transmission |
| CN112153716A (en) * | 2019-09-24 | 2020-12-29 | 中兴通讯股份有限公司 | Transmission path selection method and device and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104080121B (en) * | 2013-03-26 | 2019-04-26 | 中兴通讯股份有限公司 | A kind of method and system for transmitting data |
-
2020
- 2020-12-31 CN CN202011641282.5A patent/CN112804118B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932751A (en) * | 2012-10-17 | 2013-02-13 | 中国联合网络通信集团有限公司 | Internet of Things data transmission method and Internet of Things |
| CN104270751A (en) * | 2014-04-19 | 2015-01-07 | 湘潭大学 | Security protocol based on received signal intensity in wireless sensor network |
| JP2016072782A (en) * | 2014-09-30 | 2016-05-09 | 株式会社日立製作所 | Automatic meter reading system and method for communicating data obtained by automatic meter reading |
| CN105245326A (en) * | 2015-09-10 | 2016-01-13 | 电子科技大学 | Intelligent power grid safety communication method based on combination cipher |
| CN112153716A (en) * | 2019-09-24 | 2020-12-29 | 中兴通讯股份有限公司 | Transmission path selection method and device and storage medium |
| CN111223284A (en) * | 2020-01-19 | 2020-06-02 | 广州地铁集团有限公司 | Platform door intelligent sensing and evaluation system and method based on wireless data jump transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112804118A (en) | 2021-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112671927B (en) | Service data transmission method and device based on electric power Internet of things system change | |
| CN108632077B (en) | Power business data transmission modeling process and transmission channel determination method | |
| CN103731173A (en) | Transceiver operating in wireless communication network, network transmission system and method | |
| CN101681347A (en) | probing network nodes for optimization | |
| CN103368910A (en) | Virtual wireless communication network system and establishment method thereof | |
| CN103780317A (en) | Double-threshold collaborative frequency spectrum perception method based on trust degree | |
| CN103490865A (en) | Feedback method, device and system for CoMP | |
| CN112804118B (en) | Data transmission method and device based on intelligent ammeter data jump transmission link | |
| CN113382477A (en) | Method for modeling uplink interference between wireless network users | |
| CN112671926B (en) | Electric power Internet of things downlink data transmission method and device based on data hopping transmission link | |
| Loh et al. | Graph-based gateway placement for better performance in LoRaWAN deployments | |
| CN104301964A (en) | Self-adaptive opportunity cooperative control method based on combined forecasting | |
| CN104796988A (en) | Resource allocation method and device | |
| CN115882925A (en) | Cognitive satellite network spectrum sharing method based on block chain intelligent contract verification | |
| CN112468350B (en) | Operation parameter configuration management method and device of power Internet of things | |
| CN112953826B (en) | Data skip selection method and device for Internet of things terminal | |
| Song et al. | Federated dynamic spectrum access | |
| CN112468248B (en) | Cognitive radio frequency spectrum detection method based on power wireless private network | |
| CN112822253B (en) | Power utilization data skip transmission method and device of power Internet of things | |
| CN112533200B (en) | Data hopping transmission link management method and device based on system change | |
| CN112543451B (en) | Data skip link management method and device based on signal test | |
| CN112714065B (en) | Multi-stage jump transmission method and device for electricity consumption data | |
| CN112543452B (en) | Data skip selection method and device based on signal transmission safety management | |
| CN112533201B (en) | Data hopping transmission link management method and device of Internet of things system | |
| CN112866204B (en) | Power consumption data gathering and transmitting method and device of intelligent electric meter |
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 |