CN113554836A - Early warning method for preventing overhead cable circuit from being broken - Google Patents
Early warning method for preventing overhead cable circuit from being broken Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
- G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/12—Scaring or repelling devices, e.g. bird-scaring apparatus using odoriferous substances, e.g. aromas, pheromones or chemical agents
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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Abstract
The invention discloses an early warning method for preventing an overhead cable circuit from being broken, which comprises the steps of obtaining early warning information of staying or approaching birds and obtaining foot falling sound information of the staying or approaching birds; alarming when abnormal information is detected and collecting image information of bird quantity or distribution; the expulsion execution module comprises an infrasonic generator, is responsible for emitting infrasonic waves, dispel birds near cable circuit, still include biological volatile medicament device among the expulsion execution module, mainly be responsible for carrying out the expulsion to the birds that have berthhed in the certain limit, can carry out the collection of information to the distribution and the quantity of the birds that actually berth or fly in close to, the realization is close to the action and is carried out the analysis to berthing or flying of invasion birds, realize accurate type according to birds distribution and carry out the expulsion, practice thrift the use cost of medicament and the power consumption cost among the power supply system greatly.
Description
Technical Field
The invention relates to the field of monitoring of overhead cable circuit transmission lines, in particular to an overhead cable circuit anti-external-damage early warning method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Lightning stroke, bird damage and external force damage are three main disasters threatening the safe operation of a power transmission line, national related statistical data show that the bird damage accounts for the third place of the total faults of the power transmission line, along with the enhancement of the protection consciousness of human beings on natural ecological environment, the implementation of policies of hunting forbidding and returning to cultivation and forestation, the human beings create better environment for bird survival, the types and the number of birds are gradually increased, the range of motion is gradually enlarged, and then the birds nest on the overhead power transmission cable circuit, move, a large number of birds live on the power transmission line, so that the quality of the overhead power transmission line is caused to be in a problem, and the overhead power transmission line has huge potential safety hazards.
Along with the development of a power grid, if a power transmission line does not take targeted bird-prevention measures for prevention, the harm degree of the power transmission line is gradually increased, the accident of large-area power failure is caused to frequently occur, the safety, stability and reliable power supply of the power grid are directly influenced, and therefore, how to realize early warning and expelling of birds invading and parking power transmission line equipment becomes a worldwide difficult problem.
Disclosure of Invention
In order to solve the problems, the invention provides an early warning method for preventing an overhead cable circuit from being broken, which combines a bird detection module and a sound detection module to alarm the invasion behavior of birds and expel the birds according to the specific invasion distribution and the specific invasion quantity of the birds, and in some embodiments, the following technical scheme is adopted:
the invention aims to provide an early warning method for preventing an overhead cable circuit from being broken outside.
In order to achieve the purpose, the invention adopts the following technical scheme:
detecting whether birds are present and staying on the cable circuit or whether birds are approaching the cable circuit;
detecting the cry of birds and the falling sound of the birds on a cable circuit to judge whether the threat of bird invasion exists;
when a bird invasion cable circuit is detected or detected, triggering and starting the LED lamp and the alarm to send out an alarm signal and uploading specific detected or detected bird invasion information to a control center;
the control center controls the image acquisition sensor to acquire image information near the cable circuit and acquires the number and distribution of birds staying or approaching the cable circuit;
according to the number and distribution of the birds staying or approaching the cable circuit, a corresponding bird repelling mode is adopted, and the specific bird repelling mode is as follows:
if the detected birds are only staying on the cable circuit, the birds staying nearby are repelled by the biological propellant;
if birds are detected that are merely flying close to the cable circuit, infrasonic waves are used to dislodge birds that are approaching the cable circuit.
If it has been detected that birds had stayed on the cable circuit, still the flight is close to the cable circuit, then utilize biological volatile medicament and infrasonic wave's mode to carry out the expulsion of birds simultaneously.
In other embodiments, the following technical solutions are adopted:
an overhead cable circuit anti-external-damage early warning system comprises a bird detector, a sound detector, an alarm execution module, an image acquisition sensor and an expulsion execution module, and the bird detector, the sound detector, the alarm execution module, the image acquisition sensor and the expulsion execution module are respectively connected with a control center;
the bird detector is used for detecting whether birds stay on the cable circuit or not or whether birds approach the cable circuit or not;
the sound detector is used for detecting the cry of birds and the foot falling sound of the birds on the cable circuit;
the alarm execution module comprises an LED lamp and an alarm and is used for sending out an alarm signal in time when detecting bird invasion;
the image acquisition sensor is used for acquiring image information near the cable circuit and acquiring the number and distribution of birds staying or approaching the cable circuit;
the expelling execution module comprises a biological volatile agent device and an infrasonic wave generator and is used for expelling birds staying or approaching the cable circuit;
the control center is used for acquiring and analyzing specific detected intrusion information of birds and acquired image information and issuing specific expelling commands;
compared with the prior art, the invention has the beneficial effects that:
1) the bird detector and the sound detector are combined, and the sound detector is used as an auxiliary detection mode, so that whether birds invade and stop and approach are accurately judged;
2) the bird repelling system can collect information of various types and the number of birds actually parked or flying nearby, analyze parking or flying nearby behaviors of invading birds, accurately repel according to the bird distribution types, and greatly save the use cost of medicaments and the power consumption cost in a power supply system.
3) The invention designs two expelling modes aiming at bird invasion types, realizes accurate expelling of bird invasion of each type, greatly protects the normal operation of an overhead cable circuit, protects the overhead cable circuit from being damaged by the outside, maintains the normal transportation of electric power, and greatly improves the safety and reliability of electric power transportation.
Drawings
FIG. 1 is a schematic diagram of a system connection;
FIG. 2 is a flow chart of bird intrusion warning;
FIG. 3 is a flow chart of bird specific eviction determination;
FIG. 4 is a biological volatile agent device;
concretely, 1 dark box, 2 shells and 3 holes
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example one
In one or more embodiments, an early warning method for preventing an external damage of an overhead cable circuit is disclosed, as shown in fig. 1, including the following steps:
step 101: the bird detector is used for monitoring whether birds stay on the cable circuit or approach to the cable circuit;
step 102: the method comprises the following steps of (1) detecting the cry of birds and the sound of feet falling on a cable circuit by using a sound detector as an auxiliary mode to judge whether a threat exists;
step 103: the bird detector and the auxiliary sound detector are connected with the alarm execution module, and if bird invasion is detected, the alarm execution module is triggered and detected bird invasion information is uploaded to the control center;
step 104: the alarm execution module starts the LED lamp and the alarm at the same time;
step 105: the control center controls the image acquisition module to acquire image information near the cable circuit and acquires the number and distribution of birds staying or approaching the cable circuit.
Step 106: the control center simultaneously analyzes information detected by the birds, audio information of the sound detector and image acquisition information, and specifically analyzes and acquires the number and distribution information of the staying or approaching birds;
step 107: the control center sends a bird repelling command to the expelling execution module to repel birds, the expelling execution module specifically has two bird repelling modes, one mode is a biological volatile agent device which is close to and plays a role in the stopped birds, the other mode is an infrasonic wave generator aiming at the flying close birds, and the specific bird repelling mode is controlled and started by the specific bird invasion condition.
Firstly, establishing a control center, wherein the basic function of the control center is to receive and send related execution commands; the system comprises a plurality of modules, a bird detection module, an alarm execution module, an image acquisition module and an expulsion execution module, wherein the bird detection module, the alarm execution module, the image acquisition module and the expulsion execution module are respectively used for acquiring the staying or approaching early warning information of birds and acquiring the falling foot sound information of the staying or approaching birds; alarming when abnormal information is detected and collecting image information of bird quantity or distribution; the expulsion execution module comprises an infrasonic wave generator and is responsible for emitting infrasonic waves to repel birds nearby a cable circuit, and due to possible long-time sound wave expulsion, some birds already generate immunity to certain sound waves and still exist birds close to and staying, so that the expulsion execution module also comprises a biological volatile medicament device and is mainly responsible for expelling birds which have been parked in a certain range.
The following describes the embodiment of the present invention in detail.
This embodiment is to overhead cable circuit's the bird invasion that prevents causes the outer embodiment of external force to transmission line, mainly to open-air cable circuit bird external force destruction's early warning and expulsion, surveys the birds that may cause the threat to and obtain the quantity and the distribution of birds that have stopped or will be close to corresponding expulsion measure is specifically implemented.
(1) The bird detector monitors whether birds stay on the cable circuit or not or whether birds are approaching the cable circuit in a specific mode:
bird detector includes two kinds of infrared sensor of pyroelectric and thermopile to the change that specific object gived off the heat temperature causes the radiant energy of object also to change as the principle of surveying, when detecting whether having threatening birds invasion to the judgement:
the pyroelectric infrared sensor is arranged in a region close to the cable circuit and is made by utilizing the pyroelectric effect of a semiconductor material, and the sensor comprises a window for receiving light; the Fresnel lens is composed of a series of sawtooth grooves and used for concentrating light on a semiconductor pyroelectric element, the Fresnel lens can filter white light signals, infrared signals with specific wavelengths only pass through the Fresnel lens, infrared radiation energy moving in a fixed detection range can be changed into a pulse form, when birds fly through the Fresnel lens in the sensor, infrared rays radiated by the birds irradiate on the semiconductor pyroelectric element at intervals, the element can randomly generate current, the current is amplified by a field effect tube in the sensor and outputs a voltage signal, whether the birds approach a cable circuit can be detected by detecting whether the output voltage signal is in a continuous pulse form, the pyroelectric sensor is used for detecting the birds approaching in flight, and detection information is uploaded to an alarm execution module;
the thermopile infrared sensor is installed on a cable circuit, a main working element is a thermocouple, one end of the thermocouple is a photosensitive element and can convert received infrared rays into temperature quantity, the other end of the thermocouple is positioned in the environment to measure the temperature of the environment, when infrared rays emitted by bird radiation irradiate the hot end of the thermocouple, the other end of the thermocouple is a cold end, temperature difference is generated at the two ends, once the temperature difference is established, voltage is generated on the thermocouple and is in direct proportion to the temperature difference, the voltage values at the two ends are output to be compared, whether birds stay on the cable circuit or not is judged, and detection information is uploaded to an alarm execution module; the alarm execution module starts alarm and uploads detection information to the control center at the same time.
(2) Because there is the blind area in the region that probably surveyed, there is birds to have crossed the region of threat, has stopped, uses sound detector to carry out supplementary specific mode of surveying:
the sound detection judges whether birds invade by detecting the sound of the birds and the sound of feet falling on a cable circuit through a sound sensor, specifically collects sound signals of nearby birds through a microphone, sets an acceptable signal threshold value in advance, outputs a low level to an alarm execution module when the signal intensity exceeds the set threshold value, and simultaneously uploads detection information to a control center when the alarm gives an alarm.
(3) The alarm execution module receives the infrared detection information and the low level sent by the sound detection module, immediately starts the alarm LED lamp and the alarm, and sends the abnormal information to the control center.
(4) The control center sends a command to the image acquisition module to acquire images of cables and wires within a certain range, the image acquisition module utilizes the FPGA and the DSP to acquire and process images of the COMS image sensor, the acquisition module and the preprocessing module are designed in the FPGA, the characteristics of high clock frequency of the FPGA, small internal delay, high running speed and capability of completely controlling the logical pick to be completed by hardware are fully utilized, image data acquisition, data shunt and image zooming preprocessing are mainly completed, and the image acquisition module mainly comprises a sensor, image acquisition control and data transmission.
The specific image acquisition process comprises the following steps:
1) initializing the CMOS image sensor by the FPG on-chip analog controller;
2) the image sensor outputs Bayer RGB format image data and a synchronous clock under the action of an external clock, and an acquisition controller designed in the FPGA generates corresponding control read-write signals under the action of the synchronous clock to perform data transmission and acquisition.
3) And uploading the number of the images acquired by data transmission to a display screen of a control center, and acquiring the number and distribution condition of specific birds staying or approaching the cable circuit.
4) After the distribution and the number of the specific birds are analyzed, corresponding workers control the expelling execution module to expel the birds.
The specific bird repelling process comprises the following steps:
when the invasion of birds is detected, the worker controls a certain mode in the corresponding bird repelling execution module to repel the birds according to the specific bird distribution condition;
1) if the detected birds only stay on the cable circuit, a button for starting a biological volatile agent device in the bird repelling execution module is pressed down, and the biological volatile agent is used for repelling nearby birds;
2) if the birds are flying and approach the cable circuit, a generation button for starting an infrasonic wave generator in the bird repelling execution module is pressed, and the infrasonic wave generator is responsible for emitting infrasonic waves to repel the birds approaching the cable circuit.
3) If the invasion mode of two kinds of birds is detected, namely, the situation that the birds stay on the cable circuit and fly close to the cable circuit is detected, two buttons in the bird repelling execution module are pressed by a worker simultaneously, and the bird repelling by the medicines of the biological volatile medicines and the infrasonic wave are carried out simultaneously.
Example two
In one or more embodiments, an overhead cable circuit anti-break-out early warning system is disclosed, comprising: the bird detector, the sound detector, the alarm execution module, the image acquisition sensor and the expulsion execution module are respectively connected with the control center;
the bird detector is used for detecting whether birds stay on the cable circuit or not or whether birds approach the cable circuit or not; it surveys through the radar specifically, the radar passes through antenna transmission and receiving microwave signal, when the microwave signal of transmission meets the object that is moving, the microwave is reflected and is produced Doppler effect, birds detector judges the region of detecting by the object according to the frequency variation of transmission and received microwave signal, birds detector possesses small, the integrated level is high and sensitivity is high, detection distance is far away, characteristics such as dormancy awaken up fast, possess the function of dynamic target detection and distance detection, can be accurate survey the birds invasion condition.
The sound detector is used for detecting the cry of birds and the foot falling sound of the birds on the cable circuit; the sound detector is used as an auxiliary detection mode to prevent birds with stronger infrasonic wave tolerance from invading and staying on a cable circuit.
The alarm execution module comprises an LED lamp and an alarm and is used for sending out an alarm signal in time when detecting bird invasion; specifically, the alarm is sent out to remind relevant workers of the situation of bird invasion, and bird repelling is well prepared.
The image acquisition sensor is used for acquiring image information near the cable circuit and acquiring the number and distribution of birds staying or approaching the cable circuit; the method has the advantages that the number and the distribution images of the invading birds are collected, the next targeted bird repelling mode can be prepared, the appropriate bird repelling mode is selected according to the invading distribution type of the birds, the birds are effectively and pertinently repelled, the bird repelling efficiency is improved, the cost is saved, and the reliability and the safety of the whole cable circuit are improved.
The expelling execution module comprises a biological volatile agent device and an infrasonic wave generator and is used for expelling birds staying or approaching the cable circuit;
the control center is used for acquiring and analyzing specific detected intrusion information of birds and acquired image information and issuing specific expelling commands;
the bird detector, the sound detector, the alarm execution module and the expulsion execution module are respectively connected with the control center;
firstly, a bird detector detects bird invasion information, a sound detector is used as an auxiliary detection mode, the detection means of the bird detector has a detection blind zone, or some small birds are difficult to detect, so that the sound detector is used as an auxiliary detection mode to ensure the accuracy of the detection information, and the sound detection judges whether the threat of bird invasion exists by detecting the sound of the birds and the sound of falling feet on a cable circuit;
when bird invasion is detected, the bird detector and the sound detector trigger alarm signals and simultaneously upload detection information to the control center, the alarm execution module comprises an LED lamp and an alarm, and when the bird invasion is detected, the LED lamp is triggered to be on and the alarm is triggered to be sounded, the alarm lasts for a certain time, corresponding workers are reminded, and preparation for expelling birds can be made in advance; the control center controls the image acquisition sensors to acquire the specific number and distribution of bird invasion according to the bird invasion information detected by the bird detector and the sound detector, because the traditional image acquisition only detects whether the bird invasion exists by using a class, under the premise of acquiring the bird invasion information, the image acquisition sensors are used for acquiring the number and distribution images of the bird invasion to accurately grasp the type of the bird invasion, because the bird invasion may be the bird invasion which is stopped on a cable circuit and only close to a flight or the bird invasion types of the two situations, if the specific invasion type is not accurately grasped, a specific bird repelling method can not be implemented according to the specific invasion situation when the bird is repelled, and the bird repelling effect is not strong, and is not targeted.
The traditional bird repelling mode is that when bird invasion is detected, only infrasonic waves are used for repelling birds under the condition that the distribution information of the bird invasion types is not comprehensively grasped, the influence of some birds on the infrasonic waves for a long time is often ignored, the infrasonic waves have high immunity, namely the infrasonic waves are sensitive, the bird repelling effect cannot be achieved, the certain infrasonic waves fly through the influence range, the birds stay on a cable circuit, and the bird repelling effect is not achieved.
The application combines the infrasonic wave emitted by the infrasonic wave generator with the biological medicament volatilized by the biological medicament volatilizing device for use, the specific analyzed invasion types of the birds are subjected to targeted bird repelling, and for the birds only in the close flying range, then, some expulsion is performed using infrasonic waves, and when it is analyzed that only birds have stayed on the cable circuit, drug expulsion is performed using close-range biological volatile agents, when two types of bird invasion forms exist, the two are combined for use, infrasonic waves and biological volatile medicaments are simultaneously carried out for expelling birds, a certain bird expelling method is specifically used for analyzing the type of bird invasion, the cost is greatly saved, meanwhile, the bird repelling efficiency is improved, and the problem that the bird repelling effect is influenced by the strengthened tolerance of some birds to a certain bird repelling mode is solved.
The infrasonic wave generator sends infrasonic wave, the principle of using the infrasonic wave is that the organs of birds all have a fixed vibration frequency, these frequencies are all in secondary frequency range, choose the infrasonic wave of frequency below 20HZ for use, utilize the characteristics that the infrasonic wave is difficult for decay, propagation distance is far away, the penetrability is strong, birds are easy to perceive, drive birds to the place of keeping away from the cable circuit, it is not obvious to solve present use ultrasonic wave, sound, pronunciation and other drive the bird mode, short service life, birds easily adapt to the scheduling problem, solve present mechanical bird repellent device's bulky, many simultaneously, influence the normal operation problem of cable circuit.
Biological volatile medicament device, the device comprises 1 camera bellows and 2 casings that have 3 holes by one, 1 camera bellows side both ends can be opened, 2 casings are placed to the inside, be used for holding biological volatile medicament, have the staff to press when the button, 1 camera bellows's side both ends are opened, the medicine in 2 casings distributes out from 3 holes, the effect of camera bellows prevents in overcast and rainy weather, the rainwater soaks the medicament, the property of a medicine disappears, secondly the camera bellows is controlled by the button and just can drive the moment of bird and open when needing, it volatilizees not all to release the medicine often, the cost of saving the medicine. The shell with the holes is used for containing the medicine and can emit volatilized gas through the holes.
Combine the information and the number distribution image of the birds of surveying, specifically select the pertinence to drive the bird mode, the high efficiency drives birds, improves the reliability and the security of cable circuit's operation, specifically drives the bird according to the birds invasion condition simultaneously, combines two kinds of bird modes of driving, improves the effect of driving the bird.
In carrying out the method, the steps of the method may be carried out by a terminal device comprising a processor and a computer readable storage medium, the processor being configured to carry out the instructions; the computer readable storage medium is used for storing a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the early warning method for preventing the overhead cable circuit from being broken by the outside.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. An overhead cable circuit anti-external-damage early warning system is characterized by comprising a bird detector, a sound detector, an alarm execution module, an image acquisition sensor and an expulsion execution module, which are respectively connected with a control center;
the bird detector is used for detecting whether birds stay on the cable circuit or not or whether birds approach the cable circuit or not;
the sound detector is used for detecting the cry of birds and the foot falling sound of the birds on the cable circuit;
the alarm execution module comprises an LED lamp and an alarm and is used for sending out an alarm signal in time when detecting bird invasion;
the image acquisition sensor is used for acquiring image information near the cable circuit and acquiring the number and distribution of birds staying or approaching the cable circuit;
the expelling execution module comprises a biological volatile agent device and an infrasonic wave generator and is used for expelling birds staying or approaching the cable circuit;
the control center is used for acquiring and analyzing specific detected intrusion information of birds and acquired image information and issuing specific expelling commands.
2. An overhead cable circuit anti-break early warning system as claimed in claim 1, wherein said bio-volatile chemical device comprises a dark box and a housing with holes, both ends of the side of the dark box can be opened, a housing is placed inside the dark box for containing bio-volatile chemical, when the button is pressed by the worker, both ends of the side of the dark box are opened, the chemical in the housing is emitted from the holes, and the bio-volatile chemical is used for expelling birds nearby.
3. The early warning system of claim 1, wherein the bird detector comprises two infrared sensors of pyroelectricity and thermopile, and the detection principle is that the radiation energy of the object changes due to the change of the temperature of the heat emitted by the specific object, so as to judge whether threatening bird invasion exists.
4. An overhead cable circuit anti-breach pre-warning system as claimed in claim 3, wherein said pyroelectric infrared sensor is installed in a region near the cable circuit and is made by using pyroelectric effect of semiconductor material, and said sensor includes a window for receiving light.
5. An overhead cable circuit anti-vandalism early warning system as claimed in claim 4, wherein said sensor further includes a fresnel lens comprising a series of saw tooth grooves for concentrating light onto the semiconductor pyroelectric element, the fresnel lens being capable of filtering white light signals and converting infrared radiation energy moving within a certain detection range into pulse form by passing only infrared signals of a specific wavelength.
6. An overhead cable circuit anti-external-damage early warning system as claimed in claim 3, wherein the thermopile infrared sensor is installed on the cable circuit, the main working element is a thermocouple, one end of the thermocouple is a photosensitive element capable of converting received infrared rays into temperature, the other end of the thermocouple is located in the environment to measure the temperature of the environment, when the infrared rays emitted by bird radiation irradiate the hot end of the thermocouple, the other end is a cold end, temperature difference is generated at the two ends, once the temperature difference is established, voltage is generated on the thermocouple, and is in direct proportion to the temperature difference, and the voltage values at the two ends are output for comparison.
7. The overhead cable circuit anti-external-damage early warning system of claim 1, wherein the sound detector performs auxiliary detection in a specific manner that:
the sound detection judges whether birds invade by detecting the sound of the birds and the sound of feet falling on a cable circuit through a sound sensor, specifically collects sound signals of nearby birds through a microphone, sets an acceptable signal threshold value in advance, outputs a low level to an alarm execution module when the signal intensity exceeds the set threshold value, and simultaneously uploads detection information to a control center when the alarm gives an alarm.
8. The overhead cable circuit anti-external-damage early warning system of claim 1, wherein the image sensor performs an image acquisition process comprising:
1) initializing the CMOS image sensor by the FPG on-chip analog controller;
2) under the action of an external clock, the image sensor outputs Bayer RGB format image data and a synchronous clock, and an acquisition controller designed in the FPGA generates corresponding control read-write signals under the action of the synchronous clock to perform data transmission and acquisition;
3) uploading the number of images acquired by data transmission to a display screen of a control center, and acquiring the number and distribution condition of birds staying or approaching a cable circuit;
4) after the distribution and the number of the specific birds are analyzed, corresponding workers control the expelling execution module to expel the birds.
9. An early warning method for preventing an overhead cable circuit from being broken externally is characterized by comprising the following steps:
detecting whether birds are present and staying on the cable circuit or whether birds are approaching the cable circuit;
detecting the cry of birds and the falling sound of the birds on a cable circuit to judge whether the threat of bird invasion exists;
when a bird invasion cable circuit is detected or detected, triggering and starting the LED lamp and the alarm to send out an alarm signal and uploading specific detected or detected bird invasion information to a control center;
the control center controls the image acquisition sensor to acquire image information near the cable circuit and acquires the number and distribution of birds staying or approaching the cable circuit;
and adopting a corresponding bird repelling mode according to the acquired number and distribution of the birds staying or approaching the cable circuit.
10. The overhead cable circuit anti-external-damage early warning method of claim 9, wherein the specific corresponding bird repelling mode is as follows:
if the detected birds are only staying on the cable circuit, the birds staying nearby are repelled by the biological propellant;
if the detected birds are only flying close to the cable circuit, using infrasonic waves to expel the birds approaching the cable circuit;
if it has been detected that birds had stayed on the cable circuit to and the flight is close to the cable circuit, then utilize biological volatile medicament and infrasonic wave's mode to carry out the expulsion of birds simultaneously.
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Application publication date: 20211026 |