Method and system for observing strong convection strong wind of power transmission channel

Abstract

The invention belongs to the technical field of power transmission channel meteorological monitoring, and particularly relates to a power transmission channel strong convection strong wind observation method and system. Determining an observation mode adopted for strong convection gale observation according to the environmental condition parameters; determining a strong convection gale observation result of the target power transmission channel based on the selected observation mode; the observation mode comprises laser or microwave. According to the technical scheme provided by the invention, the advantages of high sensitivity of the laser wind measurement technology and strong penetration, weak attenuation and the like of the microwave wind measurement technology are fused, the laser radar and the microwave radar are systematically integrated, and the current external environment is automatically judged, so that laser / microwave is adaptively switched to serve as a main channel for strong convection strong wind observation; the observation efficiency and the observation accuracy are improved, and then accurate observation of strong convection strong wind of the power transmission channel is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of meteorological monitoring of power transmission channels, and in particular relates to a method and system for observing severe convection and strong winds in power transmission channels. Background Art

[0002] As an important channel for power transmission, the safe operation of transmission lines is directly related to the stability and reliability of the power system. In the actual operation of transmission lines, transmission channels are easily affected by meteorological disasters such as strong convective winds. Therefore, it is very necessary to carry out meteorological monitoring of transmission channels. Transmission channels are generally distributed in the wild, with the characteristics of narrow and long line paths, complex geographical environment, and changeable meteorological environment. Strong convective winds have the characteristics of short duration, strong locality, and drastic changes in elements, which makes them difficult to capture and observe, further increasing the difficulty of observing strong convective winds in transmission channels.

[0003] The existing means of observing strong convective wind mainly include wind vanes, ultrasonic radars, laser radars and microwave radars. Among them, wind vanes and ultrasonic radars can only perform local single-point measurements on the wind field, and the information on strong convective winds obtained is limited, and the anti-interference ability is poor. At present, laser radars or microwave radars are usually used in actual projects to achieve the goal of wind field observation. Laser radar technology has the advantages of high sensitivity, high resolution and high precision in wind field observation, but in weather conditions such as heavy precipitation and dense fog, laser attenuation will cause the range to decrease. Microwave radar has the advantage of a wide detection range, and can better observe the wind field in rainy and foggy weather, but it also has problems such as low temporal and spatial resolution, large errors in wind direction and wind speed, and large low-altitude blind spots. The detection capability is weak before the formation of clear sky and strong convective weather systems. However, with the improvement of the requirements for the operation and maintenance level of power transmission channels, it is no longer possible to obtain three-dimensional wind field data with high temporal and spatial resolution using only laser radars or microwave radars, and it is difficult to meet the business needs of power transmission channel operation and maintenance for observation of strong convective winds.

[0004] There are existing laser wind radar wind field observation schemes, such as coherent Doppler laser wind measurement. The principle of coherent Doppler laser wind measurement is to use atmospheric aerosols as tracers, detect the Doppler frequency shift of the laser backscattered echo signal by aerosols, and combine multi-beam optical scanning and wind field inversion to achieve atmospheric wind field distribution measurement. Figure 1As shown, during measurement, the radar emits laser upwards, receives scattered echoes from atmospheric aerosols and performs frequency discrimination processing to obtain the radial frequency shift in the direction of the measurement. Therefore, after each beam completes the measurement. And after completing all beam scans within a cycle, the wind field is inverted to obtain the average information of the atmospheric wind field within the measurement cycle. However, the main disadvantage of this method is that it is greatly affected by weather and atmosphere during operation. In severe weather conditions such as heavy rain, thick smoke, and dense fog, the attenuation increases sharply, and the propagation distance is greatly affected, resulting in a decrease in the measurement range; secondly, due to the extremely narrow beam of the laser radar, it is very difficult to search for targets in space, and targets can only be searched and captured within a smaller range. Generally, other equipment is used to implement large airspace and rapid and rough target capture, and then the laser radar is used to perform precise tracking and measurement of the target.

[0005] The existing microwave wind radar wind field observation scheme uses the Doppler frequency shift of the backscattered signal of electromagnetic waves from clouds and precipitation particles to obtain radial velocity. The microwave signal is transmitted, and the signal returns to the receiving end after reflection. The wind distance and speed can be calculated based on the signal return time and frequency offset. When the microwave signal encounters air molecules, liquid or solid precipitation in the air, part of the energy is scattered and absorbed, resulting in a frequency offset of the signal. The receiver can determine the speed and direction of the wind by analyzing the frequency offset of the signal. However, the main disadvantage of microwave radar is that it is easily interfered by other electromagnetic waves, such as radio signals and electromagnetic noise. At the same time, there are problems such as low temporal and spatial resolution, large errors in wind direction and speed, and large low-altitude blind spots. It is impossible to obtain high-precision three-dimensional wind field information, and the detection capability is weak before clear sky and strong weather systems form. Summary of the invention

[0006] In order to overcome the problems existing in the above-mentioned related technologies, the present application provides a method and system for observing severe convection and strong winds in a power transmission channel.

[0007] According to a first aspect of an embodiment of the present application, a method for observing severe convection and strong winds in a power transmission channel is provided, comprising: When it is determined that there is a risk of strong convective gale in the target power transmission channel according to the collected environmental condition parameters of the target power transmission channel, an observation method to be adopted for observing the strong convective gale is determined according to the environmental condition parameters; Determine the results of severe convective wind observations on the target transmission channel based on the selected observation method; The observation methods include: laser or microwave.

[0008] Preferably, the environmental condition parameters include at least the following five: temperature, humidity, atmospheric pressure, precipitation and light.

[0009] Preferably, the determining of the observation method adopted for observing the severe convective gale according to the environmental condition parameters includes: Determining target weather conditions according to the environmental condition parameters; If the target weather condition is the first weather condition, the observation method used for the severe convection and strong wind observation is laser; if the target weather condition is the second weather condition, the observation method used for the severe convection and strong wind observation is microwave.

[0010] Preferably, determining the target weather condition according to the environmental condition parameter includes: The weather condition corresponding to the current environmental condition of the target power transmission channel is calculated by using the environmental condition parameters, and the weather condition corresponding to the current environmental condition of the target power transmission channel is the target weather condition.

[0011] Preferably, the first weather condition is: no precipitation, no dense fog, no snow or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

[0012] Preferably, the step of determining the result of the severe convective wind observation of the target power transmission channel based on the selected observation method includes: Collect wind field data using laser wind measurement technology or microwave wind measurement technology; Based on the wind field data, the wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel are calculated using the Doppler effect. The wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel are the strong convective wind observation results of the target power transmission channel.

[0013] Preferably, the method further comprises: The strong convective wind observation results of the target transmission channel are output to the background monitoring system.

[0014] According to a second aspect of an embodiment of the present application, a system for observing severe convection and strong winds in a power transmission channel is provided, comprising: A first determining unit is used to determine an observation method to be adopted for observing the strong convective gale according to the environmental condition parameters of the target power transmission channel when it is judged that the power transmission channel has a risk of strong convective gale according to the collected environmental condition parameters of the target power transmission channel; A second determining unit, configured to determine the result of the severe convective gale observation of the target power transmission channel based on the selected observation method; The observation methods include: laser or microwave.

[0015] Preferably, the environmental condition parameters include at least the following five: temperature, humidity, atmospheric pressure, precipitation and light.

[0016] Preferably, the first determining unit includes: A first determination module, used to determine a target weather condition according to the environmental condition parameter; The second determination module is used to, if the target weather condition is the first weather condition, use laser as the observation method for observing the severe convection and strong wind; if the target weather condition is the second weather condition, use microwave as the observation method for observing the severe convection and strong wind.

[0017] Preferably, the first determining module is specifically used to: The weather conditions corresponding to the current environmental conditions of the target power transmission channel are calculated using the environmental condition parameters, the weather conditions corresponding to the current environmental conditions of the target power transmission channel are the target weather conditions, and the target weather conditions are sent to the second determination unit.

[0018] Preferably, the first weather condition is: no precipitation, no dense fog, no snow or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

[0019] Preferably, the second determining unit includes: A collection module, used to collect wind field data using laser wind measurement technology or microwave wind measurement technology; A calculation module is used to calculate the wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel based on the wind field data and using the Doppler effect, wherein the wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel are the strong convective wind observation results of the target power transmission channel.

[0020] Preferably, the system further comprises: A data output unit, used to output the observation results of the strong convective wind in the target power transmission channel to a background monitoring system; The second determination unit is further used to send the strong convective wind observation results of the target power transmission channel to the data output module.

[0021] According to a third aspect of an embodiment of the present application, there is provided an electronic device, comprising: at least one processor and a memory; the memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, the method for observing severe convective winds in a power transmission channel is implemented.

[0022] According to a fourth aspect of an embodiment of the present application, a readable storage medium is provided, on which an execution program is stored. When the execution program is executed, the method for observing severe convection and strong winds in a power transmission channel is implemented.

[0023] The technical solution provided by the present invention has the following beneficial effects: The present invention provides a method and system for observing strong convective winds in a power transmission channel, comprising: when it is determined that the transmission channel has a risk of strong convective winds based on the collected environmental condition parameters of the target transmission channel, determining the observation method adopted for observing the strong convective winds based on the environmental condition parameters; and determining the result of the strong convective wind observation of the target transmission channel based on the selected observation method. The present invention integrates laser and microwave technology, and the observation methods include: laser or microwave. The present invention integrates the high sensitivity of laser wind measurement technology with the strong penetration and weak attenuation of microwave wind measurement technology, integrates the laser radar and microwave radar into a system, and automatically judges the current external environment, thereby realizing adaptive switching of laser / microwave as the main channel for observing strong convective winds, improving the observation efficiency and accuracy, and thus realizing the accurate observation of strong convective winds in the transmission channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the working principle of pulsed laser coherence wind measurement; Figure 2 It is a flow chart of a method for observing severe convection and strong winds in a power transmission channel provided by an embodiment of the present invention; Figure 3 It is a structural block diagram of a severe convection and gale observation system for a power transmission channel provided by an embodiment of the present invention; Figure 4 It is a structural block diagram of a severe convection and gale observation system for a power transmission channel provided by an embodiment of the present invention; Figure 5 It is a structural block diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the following embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1 The present invention also provides a method for observing strong convection and strong wind in a power transmission channel. Figure 2 As shown, including: Step 101: when it is determined that there is a risk of strong convection and strong wind in the transmission channel according to the collected environmental condition parameters of the target transmission channel, an observation method for observing the strong convection and strong wind is determined according to the environmental condition parameters; Step 102: Determine the result of the strong convective wind observation of the target transmission channel based on the selected observation method; Observation methods include: laser or microwave.

[0028] In some embodiments, the observed environmental condition parameters of the target power transmission channel may be collected through, but not limited to, external environmental sensors, and the observed environmental condition parameters may be manually switched according to on-site climate and environmental conditions.

[0029] Furthermore, the environmental condition parameters include at least five of the following: temperature, humidity, atmospheric pressure, precipitation and light.

[0030] Furthermore, the observation method for severe convective winds is determined based on environmental condition parameters, including: Determine target weather conditions based on environmental condition parameters; If the target weather condition is the first weather condition, the observation method used for the strong convection and strong wind observation is laser; if the target weather condition is the second weather condition, the observation method used for the strong convection and strong wind observation is microwave.

[0031] Further, the target weather conditions are determined according to the environmental condition parameters, including: The weather conditions corresponding to the current environmental conditions of the target power transmission channel are calculated using the environmental condition parameters. The weather conditions corresponding to the current environmental conditions of the target power transmission channel are the target weather conditions.

[0032] It should be noted that the method of "using environmental condition parameters to calculate the weather conditions corresponding to the current environmental conditions of the target power transmission channel" involved in the present invention is well known to those skilled in the art, and therefore, its specific implementation method will not be described in detail. In some embodiments, the weather conditions corresponding to the current environmental conditions of the target power transmission channel are calculated using environmental condition parameters and a numerical weather prediction model.

[0033] The present invention calculates the weather conditions corresponding to the current environmental conditions of the target transmission channel through the real-time collected ambient temperature, humidity, atmospheric pressure, precipitation and lighting condition parameters, laying a foundation for the subsequent use of wind field data to determine the strong convection and strong wind observation results of the target transmission channel, and improving the reliability and accuracy of the strong convection and strong wind observation results.

[0034] Furthermore, the first weather condition is: no precipitation, no dense fog, no snow, or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

[0035] Further, based on the selected observation method, the result of the severe convective wind observation of the target transmission channel is determined, including: Collect wind field data using laser wind measurement technology or microwave wind measurement technology; Based on the wind field data, the Doppler effect is used to calculate the wind speed and wind direction corresponding to the current environmental conditions of the target transmission channel. The wind speed and wind direction corresponding to the current environmental conditions of the target transmission channel are the strong convective wind observation results of the target transmission channel.

[0036] The present invention integrates the advantages of high sensitivity of laser wind measurement technology and strong penetration and weak attenuation of microwave wind measurement technology, integrates laser radar and microwave radar into a system, uses external environmental sensors to judge the on-site observation environment, and adaptively switches laser / microwave as the main channel for observing strong convective winds, thereby realizing accurate observation of strong convective winds in transmission channels.

[0037] In some embodiments, the laser wind measurement technology can be implemented, but not limited to, through a laser radar module. The structure of the laser radar module mainly includes a codable all-fiber laser, an adaptive optical telescope, a weak attenuation spatial mixing optical path, a low-noise high-sensitivity balanced detector, and a high-speed signal acquisition unit. The laser radar module carries out strong convective wind observation work in which the codable all-fiber laser generates pulse-coded lasers, which are emitted by an adaptive optical telescope, wherein the adaptive optical telescope can perform adaptive optical zooming according to the strength of the echo signal to maximize the optical antenna receiving efficiency; the backscattered echo signal of the aerosol and the local oscillator light generated by the codable all-fiber laser are coherently beat in the weak attenuation spatial mixing optical path, and the beat signal is photoelectrically converted by a low-noise high-sensitivity balanced detector; the high-speed signal acquisition unit collects the detector output signal, and the collected frequency information is inverted to obtain wind field information; Microwave wind measurement technology can be realized through, but not limited to, microwave radar modules. The structure of the microwave radar module mainly includes a synthesizer, a transmitter, a receiver, a mixer, and a signal processing unit. The process of conducting severe convective wind observation is that the synthesizer first generates a linear frequency modulation pulse and transmits it into the air through the transmitter. The linear frequency modulation pulse will be reflected after encountering suspended aerosol particles in the air. The reflected frequency modulation pulse signal is received by the receiver. Then the mixer combines the transmitted and reflected frequency modulation pulse signals to generate an intermediate frequency signal. Finally, the signal processing unit operates on the intermediate frequency signal and converts it into wind field information according to the signal frequency information.

[0038] It should be noted that the wind direction data is the signal frequency received after the laser or microwave signal is transmitted.

[0039] In some embodiments, the Doppler effect calculation process is as follows: First, calculate the wind speed component along the radar beam direction, that is, the radial velocity v r , the calculation formula is as follows:

[0040] In the above formula, λ is the wavelength of the laser or microwave, f 0 is the frequency of the laser or microwave emission signal, Δ f is the difference between the received signal frequency and the transmitted signal frequency (i.e. Doppler shift); Secondly, the horizontal synthetic wind speed is calculated based on the radial velocities of different beams. Assuming that the laser radar or microwave radar transmits three beams with the same elevation angle and different azimuth angles upward, the corresponding radial velocities are v r1 , v r2 and v r3 , then the north-south component of the horizontal wind speed is u And the amount of things w It can be calculated by the following formula:

[0041] In the above formula, v r1 , v r2 and v r3 are the radial velocities of three beams emitted upward by the laser radar or microwave radar with the same elevation angle and different azimuth angles, θ It is the angle between the laser or microwave radar wave and the horizontal plane; Horizontal composite wind speed v The calculation formula is:

[0042] Finally, calculate the horizontal wind direction, horizontal wind direction α The calculation formula is:

[0043] Furthermore, the method further includes: Step 103: Output the strong convective wind observation results of the target transmission channel to the background monitoring system.

[0044] In some embodiments, it is possible but not limited to connect to a background monitoring system via a wireless signal, so that the background monitoring system can display the output wind speed and wind direction information as image data, and can also allow the user end to view relevant data information in real time.

[0045] Specifically, the background monitoring system can be implemented, but is not limited to, through a background server.

[0046] For the observation of strong convection and strong winds in the transmission channel, the present invention integrates laser and microwave technology, involving software and hardware optimization and fusion design; an external sensor module is used to collect the external environmental parameters of the transmission channel site, and the current external environment can be automatically judged; the strong convection and strong wind observation data processing has different signal processing processes according to the selected main observation channel, which improves the observation efficiency and accuracy.

[0047] Embodiment 2 The present invention provides a transmission channel severe convection and strong wind observation system, such as Figure 3 As shown, including: A first determination unit is used to determine an observation method for observing strong convective gale according to the environmental condition parameters of the target transmission channel when it is determined that the transmission channel has a risk of strong convective gale according to the collected environmental condition parameters of the target transmission channel; A second determining unit, configured to determine the result of the severe convective gale observation of the target power transmission channel based on the selected observation method; Observation methods include: laser or microwave.

[0048] Furthermore, the environmental condition parameters include at least five of the following: temperature, humidity, atmospheric pressure, precipitation and light.

[0049] Furthermore, the first determining unit includes: A first determination module is used to determine the target weather condition according to the environmental condition parameters; The second determination module is used to use laser as the observation method for observing strong convection and strong winds if the target weather condition is the first weather condition; and to use microwave as the observation method for observing strong convection and strong winds if the target weather condition is the second weather condition.

[0050] Furthermore, the first determination module is specifically used to: The weather conditions corresponding to the current environmental conditions of the target power transmission channel are calculated using the environmental condition parameters. The weather conditions corresponding to the current environmental conditions of the target power transmission channel are target weather conditions, and the target weather conditions are sent to the second determination unit.

[0051] Furthermore, the first weather condition is: no precipitation, no dense fog, no snow, or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

[0052] Furthermore, the second determining unit includes: A collection module, used to collect wind field data using laser wind measurement technology or microwave wind measurement technology; The calculation module is used to calculate the wind speed and wind direction corresponding to the current environmental conditions of the target transmission channel based on the wind field data and using the Doppler effect. The wind speed and wind direction corresponding to the current environmental conditions of the target transmission channel are the strong convective wind observation results of the target transmission channel.

[0053] Furthermore, the system further includes: A data output unit, used to output the observation results of the strong convective wind of the target power transmission channel to the background monitoring system, so that the background monitoring system can visualize the observation results of the strong convective wind of the target power transmission channel; The second determination unit is also used to send the strong convective wind observation results of the target power transmission channel to the data output module.

[0054] Embodiment 3 The present invention provides a transmission channel severe convection and strong wind observation system, such as Figure 4 As shown, it includes: an external environment sensing module, a laser radar module, a microwave radar module, a data processing module and a data output module; The external environment sensing module is used to collect the environmental condition parameters of the target transmission channel, and when it is judged that the transmission channel has the risk of strong convection and strong wind according to the collected environmental condition parameters of the target transmission channel, determine the observation method adopted for observing the strong convection and strong wind according to the environmental condition parameters, and send observation instructions to the laser radar module or the microwave radar module according to the observation method; The laser radar module is used to collect wind field data using laser wind measurement technology when receiving an observation instruction, and send the wind field data to the data processing module; The microwave radar module is used to collect wind field data using microwave wind measurement technology when receiving an observation instruction, and send the wind field data to the data processing module; A data processing module, used to determine the observation result of strong convective wind in the target transmission channel by using the wind field data, and send the observation result of strong convective wind in the target transmission channel to the data output module; The data output module is used to output the strong convective wind observation results of the target transmission channel to the background monitoring system, so that the background monitoring system can visualize the strong convective wind observation results of the target transmission channel.

[0055] In some embodiments, the structure of the laser radar module mainly includes a codable all-fiber laser, an adaptive optical telescope, a weak attenuation spatial frequency mixing optical path, a low-noise high-sensitivity balanced detector, and a high-speed signal acquisition unit; the laser radar module carries out strong convection and strong wind observation work process is that the codable all-fiber laser generates pulse coded laser, and the pulse coded laser is emitted by the adaptive optical telescope, wherein the adaptive optical telescope can perform adaptive optical zoom according to the strength of the echo signal to maximize the optical antenna receiving efficiency; the backscattered echo signal of the aerosol and the local oscillator light generated by the codable all-fiber laser are coherently beat in the weak attenuation spatial frequency mixing optical path, and the beat signal is photoelectrically converted by the low-noise high-sensitivity balanced detector; the high-speed signal acquisition unit collects the detector output signal, and the collected frequency information is inverted to obtain the wind field information; The structure of the microwave radar module mainly includes a synthesizer, a transmitter, a receiver, a mixer and a signal processing unit. The process of conducting severe convective wind observation is that the synthesizer first generates a linear frequency modulation pulse and transmits it into the air through the transmitter. The linear frequency modulation pulse will be reflected after encountering suspended aerosol particles in the air. The reflected frequency modulation pulse signal is received by the receiver. Then the mixer combines the transmitted and reflected frequency modulation pulse signals to generate an intermediate frequency signal. Finally, the signal processing unit operates on the intermediate frequency signal and converts it into wind field information according to the signal frequency information.

[0056] Furthermore, the environmental condition parameters include at least five of the following: temperature, humidity, atmospheric pressure, precipitation and light.

[0057] Furthermore, the external environment sensing module is specifically used for: A first determination module is used to determine the target weather condition according to the environmental condition parameters; The second determination module is used to use laser as the observation method for observing strong convection and strong winds if the target weather condition is the first weather condition; and to use microwave as the observation method for observing strong convection and strong winds if the target weather condition is the second weather condition.

[0058] Furthermore, the first determination module is specifically used to: The weather conditions corresponding to the current environmental conditions of the target power transmission channel are calculated using the environmental condition parameters. The weather conditions corresponding to the current environmental conditions of the target power transmission channel are target weather conditions, and the target weather conditions are sent to the second determination unit.

[0059] Furthermore, the first weather condition is: no precipitation, no dense fog, no snow, or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

[0060] Furthermore, the data processing module is specifically used for: Based on the wind field data, the Doppler effect is used to calculate the wind speed and wind direction corresponding to the current environmental conditions of the target transmission channel. The wind speed and wind direction corresponding to the current environmental conditions of the target transmission channel are the strong convective wind observation results of the target transmission channel.

[0061] To further illustrate the above-mentioned transmission channel severe convection and gale observation system, the present invention also provides a specific example, comprising the following steps: (1) Judgment of the external environment The external environment sensing module collects external environmental parameters at the transmission channel site, mainly including information such as light, temperature and humidity, to determine the characteristics of the current external environment, such as whether there is adverse weather such as rain and fog, thereby laying a basis for the selection of the main channel for observing strong convection and strong winds.

[0062] (2) Selection of the main channel for observing strong convective winds According to the judgment result of the external environment sensor module on the current external environment, the laser radar module or microwave radar module is adaptively selected as the main observation channel to observe the strong convective wind on site. Generally speaking, when the weather conditions are good, there is no obvious precipitation or dense fog, the laser radar module is used first to observe the strong convective wind; when the weather conditions are poor and there are more clouds and rain, the microwave radar module is used first to observe the strong convective wind.

[0063] (3) Processing of severe convective wind observation data According to the different selected main channels for observing strong convective winds, different data processing schemes are used to analyze and process the collected observation data. When the laser radar module is used as the main observation channel, the data processing module analyzes and processes the observation data of the laser radar module, and the processing results are input to the data output module; when the microwave radar module is used as the main observation channel, the data processing module analyzes and processes the observation data of the microwave radar module, and the processing results are input to the data output module.

[0064] (4) Output of severe convective wind observation results After analyzing and processing the collected strong convective wind data, the measured observation results of strong convective wind in the transmission channel are output.

[0065] Due to its special application scenario, the observation of strong convection and strong wind in the transmission channel faces many problems such as low resolution, large low-altitude blind area, and large wind field observation error when using a single laser radar or microwave radar, which makes it impossible to meet the business needs of the transmission channel operation and maintenance for strong convection and strong wind observation. The method and system for observing strong convection and strong wind in the transmission channel based on the laser and microwave fusion technology proposed in the present invention not only solves the problem of reduced observation distance of the laser radar under severe weather conditions such as rain and fog, but also solves the problems of low observation accuracy and large low-altitude blind area of ​​the microwave radar, and can more accurately achieve the goal of observing strong convection and strong wind in the transmission channel.

[0066] It can be understood that the system embodiment provided above corresponds to the device embodiment described above, and the corresponding specific contents can be referenced to each other and will not be repeated here.

[0067] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0068] Embodiment 4 like Figure 5 As shown, the present invention also provides an electronic device, which may be a computer device, a single-chip device, an intelligent mobile device, etc. The electronic device in this embodiment may include a processor, a memory, a transceiver component, etc. The memory, the processor, and the transceiver component are connected via a bus; the memory may be used to store an execution program, and an exemplary execution program may include instructions; the processor is used to execute the instructions stored in the memory. The memory may also be used to store data, which may be called and / or modified when the instructions are executed.

[0069] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, which is suitable for implementing one or more instructions, specifically suitable for loading and executing one or more instructions in a storage medium to implement the corresponding method flow or corresponding functions, so as to implement the steps of a method for observing severe convection and strong winds in a transmission channel in the above-mentioned embodiment.

[0070] Embodiment 5 Based on the same inventive concept, the present invention also provides a readable storage medium, specifically an electronic device readable storage medium (Memory), which is a memory device in an electronic device for storing programs and data. It can be understood that the storage medium here can include both built-in storage media in electronic devices and extended storage media supported by electronic devices. The storage medium provides a storage space, which stores the operating system of the terminal. In addition, one or more instructions suitable for being loaded and executed by a processor are also stored in the storage space, and these instructions can be one or more execution programs (including program codes). It should be noted that the storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The processor loads and executes one or more instructions stored in the storage medium, which can implement the steps of a method for observing severe convective winds in a power transmission channel in the above embodiment.

[0071] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0072] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0073] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0074] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A method for observing strong convection and strong wind in a power transmission channel, characterized in that: include: When it is determined that there is a risk of strong convective gale in the target power transmission channel according to the collected environmental condition parameters of the target power transmission channel, an observation method to be adopted for observing the strong convective gale is determined according to the environmental condition parameters; Determine the results of severe convective wind observations on the target transmission channel based on the selected observation method; The observation methods include: laser or microwave.

2. The method according to claim 1, characterized in that The environmental condition parameters include at least the following five: temperature, humidity, atmospheric pressure, precipitation and light.

3. The method according to claim 1, characterized in that The step of determining the observation method to be adopted for observing the severe convective gale according to the environmental condition parameters comprises: Determining target weather conditions according to the environmental condition parameters; If the target weather condition is the first weather condition, the observation method used for the severe convection and strong wind observation is laser; if the target weather condition is the second weather condition, the observation method used for the severe convection and strong wind observation is microwave.

4. The method according to claim 3, characterized in that Determining the target weather condition according to the environmental condition parameter includes: The weather condition corresponding to the current environmental condition of the target power transmission channel is calculated by using the environmental condition parameters, and the weather condition corresponding to the current environmental condition of the target power transmission channel is the target weather condition.

5. The method according to claim 3, characterized in that: The first weather condition is: no precipitation, no dense fog, no snow or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

6. The method according to claim 1, characterized in that The method of determining the result of the severe convective wind observation of the target power transmission channel based on the selected observation method includes: Collect wind field data using laser wind measurement technology or microwave wind measurement technology; Based on the wind field data, the wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel are calculated using the Doppler effect. The wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel are the strong convective wind observation results of the target power transmission channel.

7. The method according to claim 1, characterized in that Also includes: The strong convective wind observation results of the target transmission channel are output to the background monitoring system.

8. A transmission channel severe convection and strong wind observation system, characterized in that: include: A first determining unit is used to determine an observation method to be adopted for observing the strong convective gale according to the environmental condition parameters of the target power transmission channel when it is judged that the power transmission channel has a risk of strong convective gale according to the collected environmental condition parameters of the target power transmission channel; A second determining unit, configured to determine the result of the severe convective gale observation of the target power transmission channel based on the selected observation method; The observation methods include: laser or microwave.

9. The system according to claim 8, characterized in that The environmental condition parameters include at least the following five: temperature, humidity, atmospheric pressure, precipitation and light.

10. The system according to claim 8, characterized in that The first determining unit includes: A first determination module, used to determine a target weather condition according to the environmental condition parameter; The second determination module is used to, if the target weather condition is the first weather condition, use laser as the observation method for observing the severe convection and strong wind; if the target weather condition is the second weather condition, use microwave as the observation method for observing the severe convection and strong wind.

11. The system according to claim 10, characterized in that The first determining module is specifically configured to: The weather conditions corresponding to the current environmental conditions of the target power transmission channel are calculated using the environmental condition parameters, the weather conditions corresponding to the current environmental conditions of the target power transmission channel are the target weather conditions, and the target weather conditions are sent to the second determination unit.

12. The system according to claim 10, characterized in that The first weather condition is: no precipitation, no dense fog, no snow or sunny; The second weather condition is: precipitation weather, dense fog weather, snowfall weather or cloudy weather.

13. The system according to claim 9, characterized in that The second determining unit includes: A collection module, used to collect wind field data using laser wind measurement technology or microwave wind measurement technology; A calculation module is used to calculate the wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel based on the wind field data and using the Doppler effect, wherein the wind speed and wind direction corresponding to the current environmental conditions of the target power transmission channel are the strong convective wind observation results of the target power transmission channel.

14. The system according to claim 8, characterized in that Also includes: A data output unit, used to output the observation results of the strong convective wind in the target power transmission channel to a background monitoring system; The second determination unit is further used to send the strong convective wind observation results of the target power transmission channel to the data output module.

15. An electronic device, characterized in that: include: at least one processor and memory; The memory and the processor are connected via a bus; The memory is used to store one or more programs; When the one or more programs are executed by the at least one processor, the method for observing severe convective winds in a power transmission channel as described in any one of claims 1 to 7 is implemented.

16. A readable storage medium, characterized in that: An execution program is stored thereon, and when the execution program is executed, the severe convection and strong wind observation method for the power transmission channel as described in any one of claims 1 to 7 is implemented.

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