Photovoltaic station protection system and photovoltaic station protection method

Abstract

The invention relates to the technical field of photovoltaic field station security and protection, and discloses a photovoltaic field station protection system and a photovoltaic field station protection method.The photovoltaic field station protection system comprises a fence, cameras, a control center and an unmanned aerial vehicle, photovoltaic equipment is suitable for being arranged in the fence, the multiple cameras are arranged on the outer side of the fence, and the cameras are suitable for recognizing objects close to the fence; the control center is in signal connection with the camera, and the unmanned aerial vehicle is in signal connection with the control center. Objects close to the fence are identified through the camera, if a large animal or a person is close to the fence, camera signals are transmitted to the unmanned aerial vehicle, the unmanned aerial vehicle is driven and controlled to arrive at the fence site, and an alarm is given or repelled to a target close to or damaging the fence; therefore, the safety protection performance of the photovoltaic station is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power station security, and particularly to a photovoltaic power station protection system and a photovoltaic power station protection method. Background Art

[0002] A photovoltaic power station refers to a photovoltaic power generation system that utilizes solar energy and consists of special materials such as crystalline silicon panels, inverters and other electronic components, is connected to the power grid and transmits electricity to the power grid.

[0003] Since the desert, gobi and desert areas are vast and have strong sunlight, they are areas rich in solar energy resources, and photovoltaic power stations are mostly built in the "sand, gobi and desert" areas. In order to ensure the safe operation of the photovoltaic power station equipment, safety fences are usually installed in the photovoltaic power station. The purpose of installing the fences is to prevent large animals from entering the photovoltaic power station and damaging the equipment, or to prevent people from entering the station to steal photovoltaic equipment.

[0004] In the prior art, in consideration of facilitating small animals on the ground to pass through the fence and also considering the requirements of the fence installation cost, a simple fence is usually set outside the photovoltaic equipment. Since a photovoltaic power station is generally an unattended power station, theft and damage of photovoltaic equipment are likely to occur. Summary of the Invention

[0005] In view of this, the present invention provides a photovoltaic power station protection system and a photovoltaic power station protection method to solve the problem that theft and damage of photovoltaic equipment are likely to occur due to the simple fence set in the prior art in a photovoltaic power station.

[0006] In a first aspect, the present invention provides a photovoltaic power station protection system, including a fence, cameras, a control center and drones. The photovoltaic equipment is adapted to be arranged inside the fence, several cameras are arranged outside the fence, the cameras are adapted to identify objects approaching the fence, the control center is signal-connected to the cameras, and the drones are signal-connected to the control center.

[0007] Beneficial effects: The present invention identifies objects approaching the fence through the cameras. If a large animal or a person approaches the fence, the camera signals will be transmitted to the drones, driving and controlling the drones to reach the fence site, and giving warnings or driving away the targets approaching or damaging the fence, thereby improving the safety protection of the photovoltaic power station.

[0008] In an optional embodiment, a fill light is provided on the camera.

[0009] Beneficial effects: The present invention provides a fill light on the camera, which can improve the clarity of the image captured by the camera at night.

[0010] In an optional embodiment, a high beam light is provided on the drone.

[0011] Advantageous effects: A high beam light is provided on the drone in the present invention, facilitating the drone to track the detection target and record its behavior process.

[0012] In an alternative embodiment, a warning device is provided on the drone.

[0013] Advantageous effects: A warning device is provided on the drone in the present invention, which can send an alarm to the detection target and drive it away from the area where the photovoltaic power station is located.

[0014] In a second aspect, the present invention also provides a photovoltaic power station protection method for the above-mentioned photovoltaic power station protection system, including the following steps:

[0015] The camera acquires the characteristics and movement trajectory of the detection target;

[0016] Judge whether the detection target is approaching the fence;

[0017] The camera transmits the judgment signal to the control center;

[0018] If the detection target is approaching the fence, the control center will send a driving signal to the drone;

[0019] The drone emits an alarm signal and records the characteristics and / or behavior process of the detection target;

[0020] If the detection target is not approaching the fence, the control center will send a preparation signal to the drone.

[0021] In an alternative embodiment, the step of the camera acquiring the characteristics and movement trajectory of the detection target includes:

[0022] Taking images and videos of the detection target;

[0023] Comparing the captured images with the database information to judge the type of the detection target.

[0024] In an alternative embodiment, the step of the camera acquiring the characteristics and movement trajectory of the detection target includes:

[0025] Calculating the distance between the detection target and the fence;

[0026] Monitoring and tracking the detection target;

[0027] Combining the change of the movement trajectory formed by the detection target to judge whether the detection target is approaching the fence.

[0028] In an alternative embodiment, the step of monitoring and tracking the detection target includes:

[0029] Obtaining the movement trajectories of all targets in the video in chronological order and maintaining the identity information of each target.

[0030] In an alternative embodiment, obtaining the movement trajectories of all targets in the video in chronological order and maintaining the identity information of each target includes:

[0031] Based on the similarity of the appearance, movement, and spatio-temporal characteristics of the targets, associating the detected targets in different video frames as trajectories.

[0032] In an alternative embodiment, the steps for the drone to issue an alarm signal and record the characteristics and / or behavior process of the detected target include:

[0033] The drone arrives at the scene where the detected target is located, turns on the high beam and issues a voice warning, and further records the appearance characteristics and behavior process of the detected target;

[0034] If the detected target moves away from the fence, the drone turns off the high beam and cancels the voice warning.

[0035] Beneficial effects: The present invention uses a camera to obtain the characteristics and movement trajectories of the detected target. When the detected target approaches the fence, the drone is controlled to reach the location where the detected target is located through a driving signal, and it is warned and driven away, thereby improving the safety protection of the photovoltaic power station. Description of the Drawings

[0036] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a schematic diagram of a photovoltaic power station protection system according to an embodiment of the present invention;

[0038] Figure 2 It is a flowchart of a photovoltaic power station protection method according to an embodiment of the present invention.

[0039] Description of the Reference Numerals:

[0040] 1. Fence; 2. Camera; 3. Control center; 4. Drone; 5. Photovoltaic equipment. Detailed Embodiments

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0042] The following will describe the embodiments of the present invention in conjunction with Figures 1 to 2 , the embodiments of the present invention will be described.

[0043] According to an embodiment of the present invention, on the one hand, as Figure 1 shown, a photovoltaic power station protection system is provided, including a fence 1, cameras 2, a control center 3, and a drone 4. The photovoltaic equipment 5 is adapted to be arranged inside the fence 1. A plurality of cameras 2 are arranged outside the fence 1. The cameras 2 are adapted to identify objects approaching the fence 1. The control center 3 is signal-connected to the cameras 2, and the drone 4 is signal-connected to the control center 3.

[0044] Specifically, in this embodiment, the fence 1 encloses a closed area. A plurality of photovoltaic equipment 5 are arranged inside the fence 1. A plurality of cameras 2 are installed outside the fence 1. The plurality of cameras 2 are evenly distributed outside the fence 1 to monitor the fence 1 in all directions and avoid monitoring blind spots. The control center 3 can be arranged near the fence 1 or at a position far from the fence 1. The control center 3 is provided with a controller and a monitor. The controller and the monitor are signal-connected to the cameras 2 and the drone 4. The drone 4 is temporarily stored in the control center 3. The control center 3 sends an instruction signal to the drone 4 to control the drone 4 to move to the scene of the fence 1.

[0045] The present invention uses the cameras 2 to identify objects approaching the fence 1. If a large animal or a person approaches the fence 1, the signals of the cameras 2 will be transmitted to the drone 4 to drive and control the drone 4 to reach the scene of the fence 1, and issue a warning or drive away the target approaching or damaging the fence 1, thereby improving the safety protection of the photovoltaic power station.

[0046] In one embodiment, the cameras 2 are provided with fill lights.

[0047] Specifically, in this embodiment, no specific limitation is imposed on the cameras 2. For example, in this embodiment, the cameras 2 adopt an integrated camera 2 with dual functions of visible light and infrared thermal imaging. To clearly identify the detection target, the cameras 2 are equipped with fill lights. When the detection target approaches the isolation fence 1, the cameras 2 will start automatic capture and shooting, and use machine vision for visual ranging, multi-target positioning, and tracking.

[0048] The present invention provides fill lights on the cameras 2, which can improve the clarity of the cameras 2 for image or video shooting at night.

[0049] In one embodiment, a high beam lamp is provided on the drone 4.

[0050] The present invention provides a high beam lamp on the drone 4, which facilitates the drone 4 to track the detection target and record its behavior process.

[0051] In one embodiment, a warning device is provided on the drone 4.

[0052] Specifically, in this embodiment, no specific limitation is imposed on the warning device. For example, in this embodiment, the warning device adopts a loudspeaker, and the loudspeaker can issue a voice warning to people approaching or damaging the fence 1 at the fence 1 site.

[0053] The present invention provides a warning device on the drone 4, which can issue an alarm to the detection target and drive it away from the area where the photovoltaic power station is located.

[0054] According to an embodiment of the present invention, on the other hand, as Figure 2 shown, a photovoltaic power station protection method is also provided for the above-mentioned photovoltaic power station protection system, including the following steps:

[0055] The camera 2 acquires the characteristics and movement trajectory of the detection target;

[0056] Determine whether the detection target is approaching the fence 1;

[0057] The camera 2 transmits the judgment signal to the control center 3;

[0058] If the detection target is approaching the fence 1, the control center 3 will send a driving signal to the drone 4;

[0059] The drone 4 issues an alarm signal and records the characteristics and / or behavior process of the detection target;

[0060] If the detection target is not approaching the fence 1, the control center 3 will send a preparation signal to the drone 4.

[0061] Specifically, in this embodiment, the camera 2 monitors the environment of the fence 1 in real time. When a moving object approaches the fence 1, the camera 2 will start automatic capture and shooting, and use machine vision to perform visual ranging, multi-target positioning and tracking on the moving object to acquire the characteristics and movement trajectory of the moving object.

[0062] According to the characteristics of the detected target, determine whether it is a person, an animal or a moving car, etc., and combine with the change of the formed movement trajectory to judge in advance whether the detected target is further approaching the fence 1 of the photovoltaic power station, stopping or moving away.

[0063] When the detected target's running track gradually approaches the fence 1 of the photovoltaic power station, the camera 2 transmits the signal to the control center 3. The control center 3 sends the control signal to the drone 4 to prepare for takeoff warning. When the detected target has approached the fence 1 of the photovoltaic power station and starts to damage the fence 1, the camera 2 transmits the signal to the control center 3. The control center 3 sends the control signal to the drone 4 to drive the drone 4 to take off and reach the scene. At the same time, after the drone 4 automatically takes off to the damaged location, it checks through the camera on the drone 4, turns on the high beam light and issues a voice warning, and at the same time further records the appearance characteristics and damage process of the detected target. In this embodiment, the voice alarm can be "Please stop damaging the fence 1 immediately for the person or animal who is currently damaging. The on-site damage behavior has been recorded and security guards or the police will arrive soon."

[0064] The controller of the control center 3 will also link the security personnel of the power station at the same time. When the security personnel receive the alarm of the damage to the fence 1, they immediately check the recording information of the camera 2 in the monitor in detail. If the security personnel patrol through the monitor or through the drone 4 and find that the fence 1 site is indeed damaged, or there are acts of theft and equipment damage, the security personnel immediately rush to the scene and immediately call the police to stop the theft or damage behavior.

[0065] If the detected target stops damaging the fence 1 of the photovoltaic power station and moves away after the voice warning by the drone 4, the drone 4 cancels the alarm; if it continues to damage the fence 1 of the photovoltaic power station or has entered the fence 1 of the photovoltaic power station, the drone 4 will store the clear appearance characteristics and damage process of the detected target as valid evidence, etc.

[0066] The present invention identifies the object approaching the fence 1 through the camera 2. If a large animal or a person approaches the fence 1, the signal of the camera 2 is transmitted to the drone 4 to drive and control the drone 4 to reach the scene of the fence 1, and issue a warning or drive away the target approaching or damaging the fence 1, thereby improving the safety protection of the photovoltaic power station.

[0067] In one embodiment, the steps for the camera 2 to obtain the characteristics and movement track of the detected target include:

[0068] Taking pictures and videos of the detected target;

[0069] Comparing the taken pictures with the database information to judge the type of the detected target.

[0070] Specifically, in this embodiment, when the camera 2 discovers the detected target, the camera 2 takes pictures and videos of the detected target, and compares the detected target in the pictures and / or videos with the data in the database, and determines whether it is a person, an animal, a moving car, etc. according to the characteristics of the detected target.

[0071] In one embodiment, the steps for the camera 2 to obtain the features and movement trajectory of the detection target include:

[0072] Calculate the distance of the detection target from the fence 1;

[0073] Monitor and track the detection target;

[0074] Combined with the change of the movement trajectory formed by the detection target, determine whether the detection target is approaching the fence 1.

[0075] Specifically, in this embodiment, to calculate the distance of the moving object from the fence 1, the principle of monocular ranging is adopted. The so-called monocular ranging mainly relies on the geometric information of the object in the image for distance estimation. This method specifically uses the triangulation method, that is, based on the size and position information of the object in the image, combined with the internal and external parameters of the camera for distance estimation, and determines whether it is approaching the fence 1 through the change value of the distance between the moving object and the fence 1.

[0076] In one embodiment, the steps for monitoring and tracking the detection target include:

[0077] Obtain the movement trajectories of all targets in the video in chronological order and maintain the identity information of each target.

[0078] Specifically, in this embodiment, if multiple detection targets are identified in the video, obtain the movement trajectories of all detection targets and continuously track and detect each detection target.

[0079] In one embodiment, obtaining the movement trajectories of all targets in the video in chronological order and maintaining the identity information of each target does not include:

[0080] Based on the similarity of the appearance, movement, and spatio-temporal characteristics of the targets, associate the detection targets in different video frames as trajectories.

[0081] Specifically, in this embodiment, the multi-object online tracking technology based on deep learning is used to monitor and track the detection target. Output the movement trajectories of all targets in the given video in chronological order and maintain the identity information (Identity, ID) of each target. The specific task is split into three subtasks: target detection, feature extraction, and data association. It associates the detection targets in different video frames as trajectories based on the similarity of the appearance, movement, and spatio-temporal and other characteristics of the targets.

[0082] In one embodiment, the steps for the drone 4 to send out an alarm signal and record the features and / or behavior process of the detection target include:

[0083] The drone 4 arrives at the scene where the detection target is located, turns on the high beam and issues a voice warning, and further records the appearance features and behavior process of the detection target;

[0084] If the detected target is far away from the fence 1, the drone 4 turns off the high beam and cancels the voice warning.

[0085] Specifically, in this embodiment, if the drone 4 issues a voice warning and the detected target stops destroying the fence 1 of the photovoltaic station and moves away, the drone 4 will cancel the alarm. If the detected target continues to destroy the fence 1 of the photovoltaic station or has entered the fence 1 of the photovoltaic station, the drone 4 will clearly record the appearance characteristics and destruction process of the tracked target as an effective basis.

[0086] The present invention uses a camera 2 to obtain the characteristics and motion trajectory of the detection target. When the detection target approaches the fence 1, the driving signal controls the drone 4 to reach the location of the detection target, warns it and drives it away, thereby improving the safety protection of the photovoltaic station.

[0087] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A photovoltaic station protection system, characterized in that: include: A fence (1), wherein the photovoltaic device (5) is adapted to be arranged in the fence (1); Cameras (2), a plurality of the cameras (2) being arranged outside the fence (1), the cameras (2) being adapted to identify objects approaching the fence (1); A control center (3), the control center (3) being connected to the camera (2) by signal; A drone (4), the drone (4) is connected to the control center (3) by signal.

2. The photovoltaic station protection system according to claim 1, characterized in that: The camera (2) is provided with a fill light.

3. The photovoltaic station protection system according to claim 1, characterized in that: The drone (4) is provided with a high beam light.

4. The photovoltaic station protection system according to any one of claims 1 to 3, characterized in that: The drone (4) is provided with a warning piece.

5. A photovoltaic station protection method, used in the photovoltaic station protection system according to any one of claims 1 to 4, characterized in that: The following steps are involved: The camera (2) acquires the characteristics and motion trajectory of the detection target; Determine whether the detection target is close to the fence (1); The camera (2) transmits the judgment signal to the control center (3); If the detected target approaches the fence (1), the control center (3) transmits a driving signal to the drone (4); The drone (4) sends out an alarm signal and records the characteristics and / or behavior process of the detected target; If the detected target is not close to the fence (1), the control center (3) transmits a preparation signal to the drone (4).

6. The photovoltaic station protection method according to claim 5, characterized in that: The step of the camera (2) acquiring the characteristics and motion trajectory of the detection target comprises: Capture images and videos of detected targets; Compare the captured image with the database information to determine the type of detection target.

7. The photovoltaic station protection method according to claim 5 or 6, characterized in that: The step of the camera (2) acquiring the characteristics and motion trajectory of the detection target comprises: Calculate the distance between the detected target and the fence (1); Monitor and track the detected target; Combined with the change of the running track formed by the detection target, it is judged whether the detection target is close to the fence (1).

8. The photovoltaic station protection method according to claim 7, characterized in that: The step of monitoring and tracking the detection target comprises: The motion trajectories of all targets in the video are obtained in chronological order, and the identity information of each target is maintained.

9. The photovoltaic station protection method according to claim 8, characterized in that: The step of obtaining the motion trajectories of all targets in the video in chronological order and maintaining the identity information of each target includes: Detected objects in different video frames are associated into tracks based on the similarity of their appearance, motion, and spatiotemporal features.

10. The photovoltaic station protection method according to claim 8, characterized in that: The steps of the drone (4) sending out an alarm signal and recording the characteristics and / or behavior of the detected target include: The drone (4) arrives at the scene where the detection target is located, turns on the high beam and issues a voice warning, and further records the appearance characteristics and behavior process of the detection target; If the detected target is away from the fence (1), the drone (4) turns off the high beam and cancels the voice warning.

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