CN117614487A - Beidou system-based transmission line communication method and system - Google Patents
Beidou system-based transmission line communication method and system Download PDFInfo
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Abstract
The invention discloses a transmission line communication method and a transmission line communication system based on a Beidou system, wherein the transmission line communication method comprises the following steps: taking the collected running state and surrounding environment of the power transmission line as first real-time information, setting an alarm identifier for a Beidou short message corresponding to the first real-time information according to the acquisition mode of the first real-time information, and setting corresponding sending priority and retransmission times; according to the priority of the sending and the time sequence of the corresponding receiving, the Beidou short message is inserted into a sending queue and then sent to a regulation and control center, so that the regulation and control center makes a decision instruction according to the received Beidou short message.
Description
Technical Field
The invention relates to the technical field of Beidou communication systems, in particular to a transmission line communication method and system based on a Beidou system.
Background
In recent years, as socioeconomic performance continues to grow rapidly, the electrical load increases rapidly. The transmission line is in a complex and changeable environment, and the reliability of equipment directly influences the safe operation of a power system. Therefore, the power transmission line needs to be monitored so as to ensure the normal operation of the power system.
At present, communication of a power transmission line mainly adopts a mode of combining an industrial Ethernet switch or wireless WiFi technology based on a power private network and a wireless GPRS technology based on a public network. However, frequent natural disasters verify the vulnerability of these communication modes. For example, typhoons or storms often cause line breaks, tower fall accidents, thereby destroying power grid communications, or earthquakes, which can easily cause communications failures or even communications paralysis. Therefore, how to ensure the key monitoring information of the power transmission line and the high efficiency of communication under the conditions of disasters, emergencies and the like so as to recover the normal operation of the power grid as soon as possible is a problem to be solved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a transmission line communication method and a transmission line communication system based on a Beidou system, which can improve communication efficiency under emergency conditions.
In a first aspect, the present invention provides a transmission line communication method based on a beidou system, including:
taking the collected running state and surrounding environment of the power transmission line as first real-time information, setting an alarm identifier for a Beidou short message corresponding to the first real-time information according to the acquisition mode of the first real-time information, and setting corresponding sending priority and retransmission times;
and inserting the Beidou short message into a transmission queue according to the sending priority and the corresponding receiving time sequence, and sending the Beidou short message to a regulation and control center so that the regulation and control center makes a decision instruction according to the received Beidou short message.
The invention sets different alarm identifications for the real-time information of different acquisition modes, and sets the sending priority and retransmission times, so that the abnormal data frame information can be preferentially transmitted when the transmission line is abnormal, the delay of the abnormal monitoring data reaching the regulation and control center is reduced, the influence caused by disasters or accidents is reduced, and the fault processing efficiency is improved.
Further, the point bitmap of the power transmission line is obtained for ordered inspection, and the method specifically comprises the following steps:
and obtaining a real-time point map of the power transmission line, dividing the nodes on the point map into a plurality of stages according to the condition of node states, establishing an objective function and constraint conditions according to an ant colony algorithm, and solving the objective function step by step according to the order from inferior node states to good node states so as to carry out path planning, so that ordered inspection is carried out.
The invention also solves the objective function step by step for path planning according to the order from inferior node state to good node state, and can ensure that the node with bad state is first inspected so as to achieve faster repair, thereby further improving the fault processing efficiency and ensuring the safety of the power transmission line.
Further, the collecting the operation state and the surrounding environment of the power transmission line as the first real-time information includes:
taking the collected running state and surrounding environment of the power transmission line as first real-time information, and judging whether the first real-time information reaches an alarm threshold value or not; wherein the first real-time information includes: wind speed, temperature, tension and image;
if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal, and switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode for information acquisition;
otherwise, the first real-time information is marked as normal, and the automatic acquisition mode is kept as an acquisition mode.
Further, the determining whether the first real-time information reaches an alarm threshold includes: according to the extreme learning machine algorithm, determining a corresponding alarm threshold value, specifically:
and performing feature mapping on the kernel function instead of the hidden layer of the extreme learning machine, taking the collected historical information as input of the extreme learning machine, obtaining the weight of the hidden layer of the extreme learning machine by minimizing a prediction error, and screening an input sample according to a proportional threshold according to an extreme learning machine algorithm with known weight to obtain an alarm threshold.
According to the invention, the extreme learning machine with the kernel function is adopted, the parameters of the extreme learning machine are obtained through matrix solution to determine the alarm threshold, and the alarm threshold is not obtained according to the traditional back propagation neural network parameter updating mode.
Further, if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal data, and switching the acquisition mode from the automatic acquisition mode to the controlled acquisition mode for information acquisition, and further comprising:
if the specified inquiry requirement is carried out, switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode; wherein the specified query requirement includes: and (3) high-frequency acquisition of real-time information of the power transmission line in severe weather environment.
Further, after taking the collected operation state and surrounding environment of the power transmission line as the first real-time information, the method further comprises:
preprocessing the first real-time information, including: digital filtering, digital conversion, image noise reduction, and image compression.
Further, according to the collecting mode of the first real-time information, an alarm identifier is set for the Beidou short message corresponding to the first real-time information, and a corresponding sending priority and retransmission times are set, including:
setting an alarm identifier of a first Beidou short message corresponding to abnormal second real-time information in a controlled acquisition mode as 1, setting an alarm identifier of abnormal data in the controlled acquisition mode as 0, and setting the first Beidou short message as the highest priority and Gao Chong transmission times of transmission;
setting an alarm identifier of a second Beidou short message corresponding to abnormal first real-time information in an automatic acquisition mode as 1, and setting the first Beidou short message as a sent secondary priority and a medium retransmission frequency;
and setting the alarm identification of a third Beidou short message corresponding to the normal first real-time information in the automatic acquisition mode to be 0, and setting the third Beidou short message to be sent with low priority and low retransmission times.
Further, the switching the collection mode from the automatic collection mode to the controlled collection mode for information collection includes:
collecting real-time information according to a second time interval threshold value smaller than the first time interval threshold value of the automatic collection mode; and in the automatic acquisition mode, acquiring real-time information according to a preset first time interval threshold.
Preferably, the objective function may be expressed as:
wherein D is an objective function, n is the number of selected detected areas, i and j are detected nodes; alpha 1 、α 2 As a weight factor, alpha 1 ＞0.5，α 2 ＜0.5；ρ j，test Average parameter measured as j node ρ th Marked as reference standard security parameters; t (T) th Marked as reference standard distance time, T ij Time from node i to node j; x is x ij The moving distance from the i node to the j node is 1, and the other moving distances are all 0; the number of passes over points i and j is only 1.
In a second aspect, the present invention further provides a transmission line communication system based on the beidou system, including:
the state monitoring module is used for taking the collected running state and surrounding environment of the power transmission line as first real-time information;
the Beidou communication terminal is used for setting an alarm identifier for the Beidou short message corresponding to the first real-time information according to the acquisition mode of the first real-time information, and setting the corresponding sending priority and retransmission times;
the Beidou communication terminal is further used for inserting the Beidou short message into a sending queue according to the sending priority and the corresponding receiving time sequence and then sending the Beidou short message to a regulation and control center;
and the regulation and control center is used for making decision instructions according to the received Beidou short message.
Drawings
Fig. 1 is a schematic flow chart of a transmission line communication method based on a beidou system provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a transmission line communication system based on a beidou system provided by an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is worth noting how to guarantee the key monitoring information of the transmission line and the high efficiency of emergency communication under the conditions of disasters, emergencies and the like to recover the normal operation of the power grid as soon as possible is a problem to be solved, therefore, the invention provides the transmission line communication method based on the Beidou system, by judging whether the collected real-time information is alarmed, the real-time information reaching the alarm threshold value is provided with the Beidou short message alarm identification and the corresponding sending priority and retransmission times so as to meet the high efficiency requirement of the emergency communication; and the power transmission line is also subjected to real-time inspection, so that the fault node can be further repaired, and the communication efficiency under the emergency condition is improved.
Referring to fig. 1, a flow chart of a transmission line communication method based on a beidou system provided by an embodiment of the present invention includes steps S11 to S12, specifically:
and S11, taking the collected running state and surrounding environment of the power transmission line as first real-time information, setting an alarm identifier for the Beidou short message corresponding to the first real-time information according to the acquisition mode of the first real-time information, and setting the corresponding sending priority and retransmission times.
Specifically, taking the collected running state and surrounding environment of the power transmission line as first real-time information, including: taking the collected running state and surrounding environment of the power transmission line as first real-time information, and judging whether the first real-time information reaches an alarm threshold value or not; wherein the first real-time information includes: wind speed, temperature, tension and image; if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal, and switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode for information acquisition; otherwise, the first real-time information is marked as normal, and the automatic acquisition mode is kept as an acquisition mode.
According to the invention, when the real-time information is abnormal, the automatic acquisition mode is switched to the controlled acquisition mode, so that the acquisition mode can be flexibly adjusted, the high-efficiency requirement of emergency communication is met, and the key monitoring information of the power transmission line and the high efficiency of emergency communication transmission can be ensured under the conditions of disasters, emergencies and the like, so that the normal operation of the power grid can be recovered as soon as possible.
Wherein, judging whether the first real-time information reaches an alarm threshold value comprises: according to the extreme learning machine algorithm, determining a corresponding alarm threshold value, specifically: and performing feature mapping on the kernel function instead of the hidden layer of the extreme learning machine, taking the collected historical information as input of the extreme learning machine, obtaining the weight of the hidden layer of the extreme learning machine by minimizing a prediction error, and screening an input sample according to a proportional threshold according to an extreme learning machine algorithm with known weight to obtain an alarm threshold.
According to the invention, the extreme learning machine with the kernel function is adopted, the parameters of the extreme learning machine are obtained through matrix solution to determine the alarm threshold, and the alarm threshold is not obtained according to the traditional back propagation neural network parameter updating mode.
Preferably, the extreme learning machine (Extreme Learning Machine, ELM) algorithm is a Standard extreme learning machine algorithm (Standard ELM, SELM).
And if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal data, and switching the acquisition mode from the automatic acquisition mode to the controlled acquisition mode for information acquisition, and further comprising: if the specified inquiry requirement is carried out, switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode; wherein the specified query requirement includes: and (3) high-frequency acquisition of real-time information of the power transmission line in severe weather environment.
In addition, after taking the collected operation state and surrounding environment of the transmission line as the first real-time information, the method further comprises: preprocessing the first real-time information, including: digital filtering, digital conversion, image noise reduction, and image compression.
And step S12, inserting the Beidou short message into a transmission queue according to the transmission priority and the corresponding receiving time sequence, and then transmitting the Beidou short message to a regulation and control center so that the regulation and control center makes a decision instruction according to the received Beidou short message.
Specifically, according to the acquisition mode of the first real-time information, an alarm identifier is set for the Beidou short message corresponding to the first real-time information, and a corresponding sending priority and retransmission times are set, including: setting an alarm identifier of a first Beidou short message corresponding to abnormal second real-time information in a controlled acquisition mode as 1, setting an alarm identifier of abnormal data in the controlled acquisition mode as 0, and setting the first Beidou short message as the highest priority and Gao Chong transmission times of transmission; setting an alarm identifier of a second Beidou short message corresponding to abnormal first real-time information in an automatic acquisition mode as 1, and setting the first Beidou short message as a sent secondary priority and a medium retransmission frequency; and setting the alarm identification of a third Beidou short message corresponding to the normal first real-time information in the automatic acquisition mode to be 0, and setting the third Beidou short message to be sent with low priority and low retransmission times.
The method for switching the acquisition mode from the automatic acquisition mode to the controlled acquisition mode for information acquisition comprises the following steps: collecting real-time information according to a second time interval threshold value smaller than the first time interval threshold value of the automatic collection mode; and in the automatic acquisition mode, acquiring real-time information according to a preset first time interval threshold.
Furthermore, the method further comprises: the point bitmap of the power transmission line is obtained for ordered inspection, and the method specifically comprises the following steps: and obtaining a real-time point map of the power transmission line, dividing the nodes on the point map into a plurality of stages according to the condition of node states, establishing an objective function and constraint conditions according to an ant colony algorithm, and solving the objective function step by step according to the order from inferior node states to good node states so as to carry out path planning, so that ordered inspection is carried out.
Preferably, the objective function can be expressed as:
wherein D is an objective function, n is the number of selected detected areas, i and j are detected nodes; alpha 1 、α 2 Is a weight factor, and alpha 1 ＞0.5，α 2 ＜0.5；ρ j，test Average parameter measured as j node ρ th Marked as reference standard security parameters; t (T) th Marked as reference standard distance time, T ij Time from node i to node j; x is x ij For the distance of movement from the i node to the j node, the distance of movement from the i node to the j node is 1, and other movementsThe moving distances are all 0; the number of passes over points i and j is only 1.
The invention also solves the objective function step by step for path planning according to the order from inferior node state to good node state, and can ensure that the node with bad state is first inspected so as to achieve faster repair, thereby further improving the fault processing efficiency and ensuring the safety of the power transmission line.
The invention provides a transmission line communication system based on a Beidou system, which comprises the following components: the system comprises a state monitoring module 21, a Beidou communication terminal 22 and a regulation and control center 23.
The status monitoring module 21 is configured to take the collected operation status and surrounding environment of the power transmission line as first real-time information.
Specifically, taking the collected running state and surrounding environment of the power transmission line as first real-time information, including: collecting the running state and the surrounding environment of the power transmission line, and judging whether the first real-time information reaches an alarm threshold value or not as the first real-time information; wherein the first real-time information includes: wind speed, temperature, tension and image; if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal, and switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode for information acquisition; otherwise, the first real-time information is marked as normal, and the automatic acquisition mode is kept as an acquisition mode.
It should be noted that, the state monitoring module 21 is configured to collect an operation state and a surrounding environment of the power transmission line in real time, and send the collected real-time information to the ground communication base station, where the state monitoring module 21 includes a plurality of sensor nodes and a plurality of monitoring cameras, and the sensor nodes include: the sensor unit simulates the acquisition amplifying unit, the sensor communication unit and the power supply unit.
The wind speed sensing probe, the temperature sensing probe, the humidity sensing probe and the tension sensing probe are arranged in the sensing unit to respectively collect wind speed, temperature and tension, and the collected information is transmitted to the analog collecting and amplifying unit; the analog acquisition amplifying unit receives the data of the sensor unit, converts the received resistance signal into a voltage signal, amplifies the voltage signal, and transmits the amplified real-time information to the sensor communication unit; the sensor communication unit receives the information from the analog acquisition amplifying unit, performs unidirectional communication with the ground communication base station, and transmits the received information to the ground communication base station in a unidirectional manner; the power supply unit is mainly used for the power supply of state monitoring module, and the power supply unit includes: the induction power taking module is used for taking power by utilizing a strong electromagnetic field of surrounding environment, the standby battery pack comprises a pure lithium sub-battery and a solar battery, and the power automatic switching circuit is used for automatically switching to the standby battery pack to intervene in power supply when the induction power taking module fails.
According to the invention, the power source can be saved by taking electricity from a strong electromagnetic field of the surrounding environment, and the automatic switching circuit is carried out according to the pure lithium sub-battery and the solar battery, so that the long-term use of the state monitoring module can be effectively ensured, the cost is further saved, and the resource utilization rate is improved.
Wherein, the state monitoring module 21 further includes an alarm device, configured to determine whether the first real-time information reaches an alarm threshold, including: according to the extreme learning machine algorithm, determining a corresponding alarm threshold value, specifically: and performing feature mapping on the kernel function instead of the hidden layer of the extreme learning machine, taking the collected historical information as input of the extreme learning machine, obtaining the weight of the hidden layer of the extreme learning machine by minimizing a prediction error, and screening an input sample according to a proportional threshold according to an extreme learning machine algorithm with known weight to obtain an alarm threshold.
And if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal data, and switching the acquisition mode from the automatic acquisition mode to the controlled acquisition mode for information acquisition, and further comprising: if the specified inquiry requirement is carried out, switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode; wherein the specified query requirement includes: and (3) high-frequency acquisition of real-time information of the power transmission line in severe weather environment.
The invention adopts the method of alarming according to the real-time monitoring of the tension of the transmission line and the temperature, humidity and wind speed parameters of the surrounding environment, and can timely acquire the current state and environment of the transmission line, so that the regulation center sends out control or regulation instructions according to abnormal monitoring data to maintain or restore the safe and stable operation of the power grid, and the shorter the delay of the abnormal monitoring data reaching the regulation center is, the more beneficial to reducing the influence caused by disasters or accidents; in addition, certain security of the system is ensured through one-way communication.
It should be noted that, the state monitoring module 21 further includes a working mode switching device, configured to switch a working mode according to a current running state of the power system, and the specific mechanism is as follows: when the real-time information acquired by the state monitoring module 21 does not reach a preset alarm threshold value, an automatic acquisition mode is adopted; when the data collected by the state monitoring module exceeds a preset alarm threshold or the regulation and control center 23 has a designated inquiry requirement, a controlled collection mode is adopted.
The working mode switching device is mainly used for receiving the real-time information identification of the alarm device, judging whether to switch from the automatic acquisition mode to the controlled acquisition mode according to whether the real-time information identification is abnormal or not, or judging whether to switch from the automatic acquisition mode to the controlled acquisition mode according to whether to be a designated inquiry or not.
It is worth to say that, the information collection is carried out by switching the collection mode from the automatic collection mode to the controlled collection mode, and the method comprises the following steps: collecting real-time information according to a second time interval threshold value smaller than the first time interval threshold value of the automatic collection mode; and in the automatic acquisition mode, acquiring real-time information according to a preset first time interval threshold.
Illustratively, when there is an impending typhoon attack, the query is designated to take high frequency measurements for relevant parameters including wind speed and cable tension importance.
Preferably, the sensor communication unit is provided with a plurality of communication interfaces, at least including an ethernet RJ-45 interface, an RS485 serial communication interface and a WIFI wireless communication interface, and a plurality of communication interfaces are reserved with a RS232 module slot for matching with the beidou communication terminal 22.
According to the invention, by arranging various communication interfaces for the sensor communication unit, flexible and configurable communication between the ground communication base station and the Beidou communication terminal 22 can be realized conveniently, the applicability of the emergency communication system is improved, and the modularization of the interfaces is beneficial to saving the cost.
The transmission line communication system based on the Beidou system further comprises a ground communication base station 24, and is used for converging the real-time information acquired by the plurality of state monitoring modules 21, preprocessing the real-time information, uploading the preprocessed real-time information to the Beidou communication terminal 22, and enabling the Beidou communication terminal 22 to send the received real-time information to the regulation and control center 23 according to the Beidou short message packet.
It should be noted that the ground communication base station 24 includes a base station communication unit and a data processing device; the base station communication unit is used for receiving the real-time information transmitted by the state monitoring module in a one-way manner, the base station communication unit transmits the received real-time information to the data processing device, the data processing device preprocesses the received real-time information and transmits the preprocessed real-time information to the Beidou communication terminal 22, and the Beidou communication terminal 22 packages the received real-time information into data according to a satellite communication protocol and performs data interaction with the regulation and control center 23; the data processing device performs preprocessing operation on the real-time information, and comprises the following steps: digital filtering, digital conversion, image noise reduction, and image compression.
The Beidou communication terminal 22 is configured to set an alarm identifier for a Beidou short message corresponding to the first real-time information according to the collection mode of the first real-time information, and set a corresponding sending priority and retransmission times; and the Beidou short message is inserted into a sending queue according to the sending priority and the corresponding receiving time sequence and then sent to the regulation and control center 23.
When the Beidou short message corresponding to the real-time information is sent, an alarm identifier, a corresponding sending priority and retransmission times are required to be set. According to the acquisition mode of the real-time information and the first real-time information identifier, an alarm identifier, corresponding priorities and retransmission times are set, different priorities correspond to different sending sequences and retransmission frequencies, and data frames with high priorities are transmitted first and are retransmitted with high frequency.
Specifically, the specific flow of the preferential transmission includes: setting an alarm identifier of a first Beidou short message corresponding to abnormal second real-time information in a controlled acquisition mode as 1, setting an alarm identifier of abnormal data in the controlled acquisition mode as 0, and setting the first Beidou short message as the highest priority and Gao Chong transmission times of transmission; setting an alarm identifier of a second Beidou short message corresponding to abnormal first real-time information in an automatic acquisition mode as 1, and setting the first Beidou short message as a sent secondary priority and a medium retransmission frequency; and setting the alarm identification of a third Beidou short message corresponding to the normal first real-time information in the automatic acquisition mode to be 0, and setting the third Beidou short message to be sent with low priority and low retransmission times.
It is worth to describe that an alarm byte is added in the data frame structure in the Beidou short message, when the data is abnormal, the alarm byte is set to be 1, otherwise, the alarm byte is set to be 0. And when the priority level of the data frames is divided, classifying all the monitoring data frames in the controlled acquisition mode into a first priority level, classifying the monitoring data frames with the alarm bytes of 1 in the automatic acquisition mode into a second priority level, and classifying the monitoring data frames with the alarm bytes of 0 in the automatic acquisition mode into a third priority level. After analyzing and packaging all the monitoring data frames, determining the positions of the data frames inserted into the transmission queue of the ground communication base station according to the defined priority and the time sequence of reception, and finally sequentially transmitting the data frames from the head of the transmission queue.
The invention sets the priority of data transmission for real-time information, is convenient for analyzing and diagnosing fault types as soon as possible, and preferentially transmits abnormal data frame information to the ground communication base station 24 when the transmission line is abnormal, thereby improving the efficiency of the emergency communication system and reducing the loss caused by emergency conditions.
The regulation and control center 23 is used for making decision instructions according to the received Beidou short message. The regulation and control center 23 comprises a standby station and a main station, the software and hardware configuration of the standby station is the same as that of the main station, the standby station is used for taking over the main station when the main station is damaged or fails, and the standby station can flexibly move according to field requirements. Under the regulation and control of the master station, the master station receives the Beidou short message which is sent by the Beidou communication terminal 22 and sends real-time information, and analyzes, calculates and makes decision instructions; when the master station cannot be started, the standby station receives the Beidou short message which is sent by the Beidou communication terminal 22 and sends real-time information, and analyzes, calculates and makes decision instructions so as to maintain or restore the safe and stable operation of the power grid.
According to the invention, by arranging the standby station and the main station, when the main station is failed and can not be started, the standby station can be utilized for regulation and control, the paralysis of the whole communication system caused by the failure of the main station can be effectively prevented, and the flexibility of the system is improved.
In addition, the transmission line communication system based on the beidou system further comprises a patrol module 25, which is used for acquiring a point bitmap of the transmission line and carrying out ordered patrol, and specifically comprises: and obtaining a real-time point map of the power transmission line, dividing the nodes on the point map into a plurality of stages according to the condition of node states, establishing an objective function and constraint conditions according to an ant colony algorithm, and solving the objective function step by step according to the order from inferior node states to good node states so as to carry out path planning, so that ordered inspection is carried out.
Preferably, the objective function can be expressed as:
wherein D is an objective function, n is the number of selected detected areas, i and j are detected nodes; alpha 1 、α 2 Is a weight factor, and alpha 1 ＞0.5，α 2 ＜0.5；ρ j，test Average parameter measured as j node ρ th Marked as reference standard security parameters; t (T) th Marked as reference standard distance time, T ij Time from node i to node j; x is x ij The moving distance from the i node to the j node is 1, and the other moving distances are all 0; the number of passes over points i and j is only 1.
Referring to fig. 2, a schematic structural diagram of a transmission line communication system based on a beidou system according to an embodiment of the present invention is shown, where in fig. 2, a complete system structure is included, and the system structure includes: the system comprises a state monitoring module 21, a ground communication base station 24, a Beidou communication terminal 22, a regulation and control center 23, a patrol module 25 and a Beidou satellite 26; wherein, the Beidou short message sent to the regulation and control center 23 by the Beidou communication terminal 22 is forwarded through the Beidou satellite 26. In the communication process, the state monitoring module 21 collects real-time information of the power transmission line in real time, wherein the state power transmission line comprises a first state detection module 211 and a second state detection module 212, namely, a power transmission line communication system based on a Beidou system comprises a plurality of state detection modules which are respectively used for measuring states and surrounding environments of the power transmission line at different positions; judging whether to alarm or not to obtain abnormal or normal identifications, converging the real-time information and the corresponding identifications to the ground communication base station 24, preprocessing the received real-time information and the corresponding identifications by the ground communication base station 24, transmitting the preprocessed real-time information and the preprocessed corresponding identifications to the Beidou communication terminal 22, setting the alarm identifications, the transmitting priority and the retransmission times corresponding to the Beidou short messages according to the corresponding collecting mode and the corresponding identifications by the Beidou communication terminal 22, inserting the set Beidou short messages into a transmitting queue according to the priority and transmitting the set Beidou short messages to the regulating and controlling center 23 so as to regulate and control the master station 231 or the standby station 232; in addition, the method further comprises the step of inspecting each state monitoring module according to the inspection module 25.
The invention sets different alarm identifications for the real-time information of different acquisition modes, and sets the sending priority and retransmission times, so that the abnormal data frame information can be preferentially transmitted when the transmission line is abnormal, the delay of the abnormal monitoring data reaching the regulation and control center is reduced, the influence caused by disasters or accidents is reduced, and the fault processing efficiency is improved.
It will be appreciated by those skilled in the art that embodiments of the present application may also provide a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. The transmission line communication method based on the Beidou system is characterized by comprising the following steps of:
taking the collected running state and surrounding environment of the power transmission line as first real-time information, setting an alarm identifier for a Beidou short message corresponding to the first real-time information according to the acquisition mode of the first real-time information, and setting corresponding sending priority and retransmission times;
and inserting the Beidou short message into a transmission queue according to the sending priority and the corresponding receiving time sequence, and sending the Beidou short message to a regulation and control center so that the regulation and control center makes a decision instruction according to the received Beidou short message.
2. The transmission line communication method based on the beidou system according to claim 1, further comprising: the point bitmap of the power transmission line is obtained for ordered inspection, and the method specifically comprises the following steps:
and obtaining a real-time point map of the power transmission line, dividing the nodes on the point map into a plurality of stages according to the condition of node states, establishing an objective function and constraint conditions according to an ant colony algorithm, and solving the objective function step by step according to the order from inferior node states to good node states so as to carry out path planning, so that ordered inspection is carried out.
3. The transmission line communication method based on the beidou system according to claim 1, wherein the taking the collected operation state and surrounding environment of the transmission line as the first real-time information includes:
taking the collected running state and surrounding environment of the power transmission line as first real-time information, and judging whether the first real-time information reaches an alarm threshold value or not; wherein the first real-time information includes: wind speed, temperature, tension and image;
if the first real-time information reaches the alarm threshold, identifying the first real-time information as abnormal, and switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode for information acquisition;
otherwise, the first real-time information is marked as normal, and the automatic acquisition mode is kept as an acquisition mode.
4. The transmission line communication method based on the beidou system according to claim 3, wherein said determining whether the first real-time information reaches an alarm threshold value includes: according to the extreme learning machine algorithm, determining a corresponding alarm threshold value, specifically:
and performing feature mapping on the kernel function instead of the hidden layer of the extreme learning machine, taking the collected historical information as input of the extreme learning machine, obtaining the weight of the hidden layer of the extreme learning machine by minimizing a prediction error, and screening an input sample according to a proportional threshold according to an extreme learning machine algorithm with known weight to obtain an alarm threshold.
5. The transmission line communication method based on the beidou system according to claim 3, wherein if the first real-time information reaches an alarm threshold, identifying the first real-time information as abnormal data, and switching the acquisition mode from the automatic acquisition mode to the controlled acquisition mode for information acquisition, and further comprising:
if the specified inquiry requirement is carried out, switching the acquisition mode from an automatic acquisition mode to a controlled acquisition mode; wherein the specified query requirement includes: and (3) high-frequency acquisition of real-time information of the power transmission line in severe weather environment.
6. The transmission line communication method based on the beidou system according to claim 1, wherein after taking the collected operation state and surrounding environment of the transmission line as the first real-time information, the method further comprises:
preprocessing the first real-time information, including: digital filtering, digital conversion, image noise reduction, and image compression.
7. The transmission line communication method based on the beidou system according to claim 1, wherein the setting an alarm identifier for the beidou short message corresponding to the first real-time information according to the collection mode of the first real-time information, and setting the corresponding sending priority and retransmission times includes:
setting an alarm identifier of a first Beidou short message corresponding to abnormal second real-time information in a controlled acquisition mode as 1, setting an alarm identifier of abnormal data in the controlled acquisition mode as 0, and setting the first Beidou short message as the highest priority and Gao Chong transmission times of transmission;
setting an alarm identifier of a second Beidou short message corresponding to abnormal first real-time information in an automatic acquisition mode as 1, and setting the second Beidou short message as a sent secondary priority and a medium retransmission frequency;
and setting the alarm identification of a third Beidou short message corresponding to the normal first real-time information in the automatic acquisition mode to be 0, and setting the third Beidou short message to be sent with low priority and low retransmission times.
8. The transmission line communication method based on the beidou system according to any one of claims 3 or 5, wherein the switching the acquisition mode from the automatic acquisition mode to the controlled acquisition mode for information acquisition includes:
collecting real-time information according to a second time interval threshold value smaller than the first time interval threshold value of the automatic collection mode; and in the automatic acquisition mode, acquiring real-time information according to a preset first time interval threshold.
9. The transmission line communication method based on the beidou system according to claim 2, wherein the objective function can be expressed as:
wherein D is an objective function and n isThe number of the selected detected areas, i and j, are detected nodes; alpha 1 、α 2 Is a weight factor, and alpha 1 ＞0.5，α 2 ＜0.5；ρ j,test Average parameter measured as j node ρ th Marked as reference standard security parameters; t (T) th Marked as reference standard distance time, T ij Time from node i to node j; x is x ij The moving distance from the i node to the j node is 1, and the other moving distances are all 0; the number of passes over points i and j is only 1.
10. The utility model provides a transmission line communication system based on beidou system which characterized in that includes:
the state monitoring module is used for taking the collected running state and surrounding environment of the power transmission line as first real-time information;
the Beidou communication terminal is used for setting an alarm identifier for the Beidou short message corresponding to the first real-time information according to the acquisition mode of the first real-time information, and setting the corresponding sending priority and retransmission times;
the Beidou communication terminal is further used for inserting the Beidou short message into a sending queue according to the sending priority and the corresponding receiving time sequence and then sending the Beidou short message to a regulation and control center;
and the regulation and control center is used for making decision instructions according to the received Beidou short message.
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| CN117713914A (en) * | 2024-02-06 | 2024-03-15 | 北斗天汇（北京）科技有限公司 | Beidou satellite intelligent telemetry and remote control communication integrated terminal system |
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| CN117713914A (en) * | 2024-02-06 | 2024-03-15 | 北斗天汇（北京）科技有限公司 | Beidou satellite intelligent telemetry and remote control communication integrated terminal system |
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