Power distribution data transmission system and method in ring main unit scene

Abstract

The invention discloses a power distribution data transmission system in a ring main unit scene. The system comprises a sensor, a station terminal and a power distribution master station. Each sensor is installed on a corresponding power distribution terminal device and is connected with a station terminal in a wireless communication mode, and when receiving an access permission instruction, the sensors collect body state data or operation environment data of the power distribution terminal device and upload the body state data or the operation environment data; the station terminal obtains identity information of each connected sensor and reports the identity information to the power distribution master station, and after verification passing information issued by the power distribution master station is received, the sensors allowed to be accessed are determined to further form access permission instructions to be issued, and data are forwarded to the power distribution master station; according to the identity information of the sensors, the power distribution master station checks whether the sensors allowed to access are written into verification passing information and issues the verification passing information, and data reported by the station terminal are analyzed and processed. According to the invention, data acquisition of the equipment body state, the operation environment and the like can be realized, and the problem of a traditional wired mode can be overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and in particular to a power distribution data transmission system and method in a ring main unit scenario. Background Art

[0002] In recent years, power grid companies have been fully committed to promoting digital transformation and digital grid construction. In the ring main unit scenario, the current power distribution equipment has only partially realized the simple electrical quantity collection such as voltage and current, and has paid less attention to the state perception of the equipment body and the perception of the equipment operating environment, and cannot achieve comprehensive perception. In addition, the deployment of sensors through wired methods brings about problems such as difficult construction and difficult operation and maintenance, which are difficult to fundamentally solve, and there are problems such as high pressure on later operation and maintenance and unsmooth intercommunication and exchange.

[0003] Therefore, there is an urgent need for a new power distribution data transmission method in the ring main unit scenario, which can not only realize the data collection of equipment status and equipment operating environment, but also overcome the problems of construction difficulty and operation and maintenance difficulty brought by the traditional wired method. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a power distribution data transmission system and method in a ring main unit scenario, which can not only realize the data collection of equipment body status and equipment operating environment, but also overcome the problems of difficult construction and operation and maintenance brought about by traditional wired methods.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a power distribution data transmission system in a ring main unit scenario, including a sensor, a station terminal and a power distribution master station; wherein,

[0006] There are multiple sensors; each sensor is installed on a corresponding power distribution terminal device and is connected to the station terminal via wireless communication, and is used to collect the body status data or operating environment data of the power distribution terminal device when receiving the access permission instruction issued by the station terminal, and upload it to the station terminal;

[0007] The station terminal is connected to the power distribution master station, and is used to obtain the identity information of each connected sensor and report it to the power distribution master station, and after receiving the verification information issued by the power distribution master station based on the identity information of each connected sensor, determine the sensors that are allowed to access, and further issue the access permission instruction to all the sensors that are allowed to access; and receive the body status data or operating environment data of the power distribution terminal equipment reported by all the sensors that are allowed to access and report it to the power distribution master station;

[0008] The power distribution master station is used to verify the sensors that are allowed to access based on the identity information of the sensors reported by the station terminals, and after writing the identity information of the sensors allowed to access into the preset verification information, send it to the station terminals; and analyze and process the main body status data or operating environment data of the distribution terminal equipment reported by the station terminals.

[0009] Among them, the station terminal is also used to form a time message with the synchronized time after time synchronization through GPS or Beidou system and broadcast it to each connected sensor to achieve time synchronization with each connected sensor.

[0010] Among them, the station terminal is also used to adjust the queue order or peak-shifting reporting time of all data reporting sensors allowed to access when it is determined that the main state data or operating environment data of the distribution terminal equipment reported by all sensors allowed to access forms data congestion at a certain moment.

[0011] Among them, the station terminal is also used to divide all connected sensors into multiple clusters based on the distance between it and each connected sensor, and receive data reported by the cluster head in each cluster; wherein each cluster head is a sensor arbitrarily designated by the station terminal in a corresponding cluster, and in each designated sensor, the main body status data or operating environment data of the distribution terminal equipment collected by all sensors in the same cluster are aggregated and pre-processed.

[0012] The sensors include micro-power sensors with power less than 10uw and low-power sensors with power less than 100uw and greater than or equal to 10uw.

[0013] An embodiment of the present invention further provides a method for power distribution data transmission in a ring main unit scenario, which is implemented on the power distribution data transmission system in the ring main unit scenario, and the method comprises the following steps:

[0014] The station terminal obtains the identity information of each connected sensor and reports it to the power distribution master station;

[0015] The power distribution master station verifies the sensors that are allowed to access according to the identity information of the sensors reported by the station terminals, and after writing the identity information of the sensors that are allowed to access into the preset verification information, sends it to the station terminals;

[0016] After receiving the verification information sent by the power distribution master station based on the identity information of each connected sensor, the station terminal determines the sensors that are allowed to access, and further sends access permission instructions to all the sensors that are allowed to access;

[0017] When each sensor receives the access permission instruction issued by the station terminal, it collects the main state data or operating environment data of the distribution terminal equipment and uploads it to the station terminal, which is further forwarded by the station terminal to the distribution master station for analysis and processing.

[0018] Wherein, the method further comprises:

[0019] After the station terminal performs time synchronization through the GPS or Beidou system, the synchronized time is formed into a time message and broadcasted to each connected sensor to achieve time synchronization with each connected sensor.

[0020] Wherein, the method further comprises:

[0021] When the station terminal determines that the main state data or operating environment data of the distribution terminal equipment reported by all the allowed access sensors forms data congestion at a certain moment, the station terminal adjusts the queue order of the data reporting of all the allowed access sensors or adjusts the reporting time to stagger the peak.

[0022] Wherein, the method further comprises:

[0023] The station terminal divides all connected sensors into multiple clusters based on the distance between it and each connected sensor, and receives data reported by the cluster head in each cluster; wherein each cluster head is a sensor arbitrarily designated by the station terminal in a corresponding cluster, and in each designated sensor, the main body status data or operating environment data of the distribution terminal equipment collected by all sensors in the same cluster are aggregated and pre-processed.

[0024] Implementing the embodiments of the present invention has the following beneficial effects:

[0025] 1. Each sensor in the present invention is installed on the corresponding power distribution terminal equipment, and is connected to the station terminal through wireless communication, and is connected to the power distribution main station through the station terminal, so as to realize data interaction and efficient transmission between the power distribution main station, the station terminal and the sensor, overcoming the problems of difficult construction and operation and maintenance brought by the traditional wired method;

[0026] 2. When each sensor in the present invention receives the access permission instruction issued by the station terminal, it collects the main body status data or operating environment data of the distribution terminal equipment where it is located, and uploads it to the station terminal, and is further forwarded by the station terminal to the distribution main station for analysis and processing, thereby realizing the collection of data such as the equipment main body status and equipment operating environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the present invention.

[0028] Figure 1 A schematic diagram of the structure of a power distribution data transmission system in a ring main unit scenario provided by an embodiment of the present invention;

[0029] Figure 2 A flow chart of a power distribution data transmission method in a ring main unit scenario provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] like Figure 1 As shown, in an embodiment of the present invention, a power distribution data transmission system in a ring main unit scenario is proposed, including a sensor 1, a station terminal 2 and a power distribution master station 3; wherein,

[0032] There are multiple sensors 1, including micro-power sensors with power less than 10uw and low-power sensors with power less than 100uw and greater than or equal to 10uw; wherein each sensor is installed on the corresponding power distribution terminal equipment (not shown), and is connected to the station terminal 2 through wireless communication (such as LoRa transmission technology, etc.), and is used to collect the main state data or operating environment data of the power distribution terminal equipment when receiving the access permission instruction issued by the station terminal 2, and upload it to the station terminal 2; it should be noted that the electrical data collected on each power distribution terminal equipment is realized through the original power communication network or communication system to realize data interaction and transmission, which will not be repeated here; at this time, the micro-power sensor communicates with the station terminal 2 at a frequency of 2.4GHz, and the low-power sensor communicates with the station terminal 2 at a frequency of 470MHz; in addition, considering the signal attenuation limit of the wireless communication distance, a signal amplifier or repeater can be installed for interconnection, which will not be repeated here;

[0033] The station terminal 2 is connected to the power distribution master station 3, and is used to obtain the identity information of each connected sensor 1 and report it to the power distribution master station 3, and after receiving the verification information issued by the power distribution master station 3 based on the identity information of each connected sensor 1, determine the sensors 1 that are allowed to access, and further issue access permission instructions to all the sensors 1 that are allowed to access; and receive the body status data or operating environment data of the power distribution terminal equipment reported by all the sensors 1 that are allowed to access and report them to the power distribution master station 3;

[0034] The power distribution master station 3 is used to verify the allowed access sensors 1 according to the identity information of the sensor 1 reported by the station terminal 2, and after the identity information of the allowed access sensor 1 is written into the preset verification information, it is sent to the station terminal 2; and analyze and process the body state data or operating environment data of the power distribution terminal equipment reported by the station terminal 2. It should be noted that the identity information of the sensor 1 includes but is not limited to the ID number, manufacturer and model of the sensor, and the ID number of the power distribution terminal equipment corresponding to the sensor 1.

[0035] It can be understood that the data exchange between the sensor 1, the station terminal 2 and the power distribution main station 3 is realized through two types of messages, including business messages and control messages; among which, the business message is used to transmit the main state data or operating environment data of the power distribution terminal equipment collected by the sensor; the control message is different from the business message, and the relevant content is adjusted according to the source and destination of the data exchange. For example, the control message between the station terminal 2 and the power distribution main station 3 includes the identity information of the sensor 1, the verification information, the message type, the check, etc.; for another example, the control message between the station terminal 2 and the sensor 1 includes the identity information of the sensor 1, the access permission instruction, the message type, the check, etc.

[0036] In the embodiment of the present invention, in order to facilitate subsequent data analysis, the time of all sensors 1 needs to be synchronized. Therefore, the station terminal 2 also synchronizes the time through the GPS or Beidou system, forms a time message with the synchronized time and broadcasts it to each connected sensor 1 to achieve time synchronization with each connected sensor 1.

[0037] In the embodiment of the present invention, considering that the bandwidth of the wireless communication method used between the station terminal 2 and the sensor 1 is much smaller than that of the wired communication method, it is necessary to optimize the bandwidth congestion. Therefore, when the station terminal 2 determines that the main body status data or operating environment data of the power distribution terminal equipment reported by all the sensors allowed to access the sensor 1 forms data congestion at a certain moment, the data reporting order of all the sensors allowed to access is adjusted or the reporting time is adjusted to stagger the peak, thereby reducing the network cycle for uploading and reducing the transmission power consumption. It should be noted that data congestion can be judged by the proportion of bandwidth occupied by instantaneous data throughput at a certain moment, and data congestion can be solved by data queuing and time staggering.

[0038] In an embodiment of the present invention, a dynamic routing transmission mechanism is designed to reduce the transmission of useless information and save unnecessary energy loss. Therefore, the station terminal 2 also divides all connected sensors into multiple clusters based on the distance between it and each connected sensor, and receives the data reported by the cluster head in each cluster; wherein each cluster head is a sensor 1 arbitrarily designated by the station terminal 2 in a corresponding cluster, and in each designated sensor 1, the main state data or operating environment data of the power distribution terminal equipment collected by all sensors in the same cluster are gathered and pre-processed. Among them, data preprocessing mainly removes useless information, including sensor ID information, frame header information, frame tail check information, etc. For example, nodes with a distance interval of less than 20 meters between sensors 1 form a cluster.

[0039] like Figure 2 As shown, a power distribution data transmission method in a ring main unit scenario is provided in an embodiment of the present invention, which is implemented on a power distribution data transmission system in a ring main unit scenario in an embodiment of the present invention, and the method includes the following steps:

[0040] Step S1: The station terminal obtains the identity information of each connected sensor and reports it to the power distribution master station;

[0041] Step S2, the power distribution master station verifies the sensors that are allowed to access according to the identity information of the sensors reported by the station terminals, and after writing the identity information of the sensors that are allowed to access into the preset verification information, sends it to the station terminals;

[0042] Step S3, after receiving the verification information sent by the power distribution master station based on the identity information of each connected sensor, the station terminal determines the sensors that are allowed to access, and further sends access permission instructions to all the sensors that are allowed to access;

[0043] Step S4: When each sensor receives the access permission instruction issued by the station terminal, it collects the main state data or operating environment data of the distribution terminal equipment and uploads it to the station terminal, which is further forwarded by the station terminal to the distribution master station for analysis and processing.

[0044] Wherein, the method further comprises:

[0045] After the station terminal performs time synchronization through the GPS or Beidou system, the synchronized time is formed into a time message and broadcasted to each connected sensor to achieve time synchronization with each connected sensor.

[0046] Wherein, the method further comprises:

[0047] When the station terminal determines that the main state data or operating environment data of the distribution terminal equipment reported by all the allowed access sensors forms data congestion at a certain moment, the station terminal adjusts the queue order of the data reporting of all the allowed access sensors or adjusts the reporting time to stagger the peak.

[0048] Wherein, the method further comprises:

[0049] The station terminal divides all connected sensors into multiple clusters based on the distance between it and each connected sensor, and receives data reported by the cluster head in each cluster; wherein each cluster head is a sensor arbitrarily designated by the station terminal in a corresponding cluster, and in each designated sensor, the main body status data or operating environment data of the distribution terminal equipment collected by all sensors in the same cluster are aggregated and pre-processed.

[0050] Implementing the embodiments of the present invention has the following beneficial effects:

[0051] 1. Each sensor in the present invention is installed on the corresponding power distribution terminal equipment, and is connected to the station terminal through wireless communication, and is connected to the power distribution main station through the station terminal, so as to realize data interaction and efficient transmission between the power distribution main station, the station terminal and the sensor, overcoming the problems of difficult construction and operation and maintenance brought by the traditional wired method;

[0052] 2. When each sensor in the present invention receives the access permission instruction issued by the station terminal, it collects the main body status data or operating environment data of the distribution terminal equipment where it is located, and uploads it to the station terminal, and is further forwarded by the station terminal to the distribution main station for analysis and processing, thereby realizing the collection of data such as the equipment main body status and equipment operating environment.

[0053] A person skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, disk, CD-ROM, etc.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A power distribution data transmission system in a ring main unit scenario, characterized in that: It includes sensors, station terminals and power distribution master stations; among them, There are multiple sensors; each sensor is installed on a corresponding power distribution terminal device and is connected to the station terminal via wireless communication, and is used to collect the body status data or operating environment data of the power distribution terminal device when receiving the access permission instruction issued by the station terminal, and upload it to the station terminal; The station terminal is connected to the power distribution master station, and is used to obtain the identity information of each connected sensor and report it to the power distribution master station, and after receiving the verification information issued by the power distribution master station based on the identity information of each connected sensor, determine the sensors that are allowed to access, and further issue the access permission instruction to all the sensors that are allowed to access; and receive the body status data or operating environment data of the power distribution terminal equipment reported by all the sensors that are allowed to access and report it to the power distribution master station; The power distribution master station is used to verify the sensors that are allowed to access based on the identity information of the sensors reported by the station terminals, and after writing the identity information of the sensors allowed to access into the preset verification information, send it to the station terminals; and analyze and process the main body status data or operating environment data of the distribution terminal equipment reported by the station terminals.

2. The power distribution data transmission system in the ring main unit scenario according to claim 1, characterized in that: The station terminal is also used to form a time message with the synchronized time after time synchronization through GPS or Beidou system and broadcast it to each connected sensor to achieve time synchronization with each connected sensor.

3. The power distribution data transmission system in the ring main unit scenario according to claim 2, characterized in that: The station terminal is also used to adjust the queue order or peak-shifting reporting time of the data reporting of all sensors allowed to access when it is determined that the main state data or operating environment data of the distribution terminal equipment reported by all sensors allowed to access forms data congestion at a certain moment.

4. The power distribution data transmission system in the ring main unit scenario according to claim 3, characterized in that: The station terminal is also used to divide all connected sensors into multiple clusters based on the distance between it and each connected sensor, and receive data reported by the cluster head in each cluster; wherein each cluster head is a sensor arbitrarily designated by the station terminal in a corresponding cluster, and in each designated sensor, the main body status data or operating environment data of the distribution terminal equipment collected by all sensors in the same cluster are aggregated and pre-processed.

5. The power distribution data transmission system in the ring main unit scenario as claimed in claim 4, characterized in that: The sensors include micro-power sensors with power less than 10uw and low-power sensors with power less than 100uw and greater than or equal to 10uw.

6. A method for transmitting power distribution data in a ring main unit scenario, characterized in that: The method is implemented on the power distribution data transmission system in the ring main unit scenario as described in claim 5, and the method comprises the following steps: The station terminal obtains the identity information of each connected sensor and reports it to the power distribution master station; The power distribution master station verifies the sensors that are allowed to access according to the identity information of the sensors reported by the station terminals, and after writing the identity information of the sensors that are allowed to access into the preset verification information, sends it to the station terminals; After receiving the verification information sent by the power distribution master station based on the identity information of each connected sensor, the station terminal determines the sensors that are allowed to access, and further sends access permission instructions to all the sensors that are allowed to access; When each sensor receives the access permission instruction issued by the station terminal, it collects the main state data or operating environment data of the distribution terminal equipment and uploads it to the station terminal, which is further forwarded by the station terminal to the distribution master station for analysis and processing.

7. The power distribution data transmission method in the ring main unit scenario according to claim 6, characterized in that: The method further comprises: After the station terminal performs time synchronization through the GPS or Beidou system, the synchronized time is formed into a time message and broadcasted to each connected sensor to achieve time synchronization with each connected sensor.

8. The power distribution data transmission method in the ring main unit scenario according to claim 7, characterized in that: The method further comprises: When the station terminal determines that the main state data or operating environment data of the distribution terminal equipment reported by all the allowed access sensors forms data congestion at a certain moment, the station terminal adjusts the queue order of the data reporting of all the allowed access sensors or adjusts the reporting time to stagger the peak.

9. The power distribution data transmission method in the ring main unit scenario according to claim 8, characterized in that: The method further comprises: The station terminal divides all connected sensors into multiple clusters based on the distance between it and each connected sensor, and receives data reported by the cluster head in each cluster; wherein each cluster head is a sensor arbitrarily designated by the station terminal in a corresponding cluster, and in each designated sensor, the main body status data or operating environment data of the distribution terminal equipment collected by all sensors in the same cluster are aggregated and pre-processed.

Images