Remote monitoring camera system based on unmanned aerial vehicle and use method

Abstract

The invention discloses a remote monitoring camera system based on an unmanned aerial vehicle and a use method, and relates to the technical field of unmanned aerial vehicle monitoring. A remote monitoring camera system based on an unmanned aerial vehicle comprises a protective cover, a landing platform and an unmanned aerial vehicle platform stand column. An external power line is installed in the unmanned aerial vehicle platform stand column, a landing platform is fixedly installed at the top of the unmanned aerial vehicle platform stand column, and a protective cover is installed at the top of the landing platform. An unmanned aerial vehicle is movably placed on the landing platform, and a rotary camera is mounted at the bottom of the unmanned aerial vehicle; a wireless controller is mounted in the landing platform; a wireless signal transmitting and receiving antenna is mounted on one side of the landing platform; an unmanned aerial vehicle propeller is mounted at the top of the unmanned aerial vehicle, unmanned aerial vehicle feet are mounted at the bottom of the unmanned aerial vehicle, and receiving coils are mounted on the unmanned aerial vehicle feet; a transmitting coil is installed on the landing platform to solve the problem that the visual angle of a fixed camera is limited.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle monitoring, and in particular to a remote monitoring camera system based on an unmanned aerial vehicle and a use method thereof. Background Art

[0002] In order to ensure the safety and quality management of the construction process, the safety and quality control of the construction process, and the safety and quality inspection, real-time monitoring cameras are currently installed at important parts of the construction site. Some can be remotely controlled to rotate up and down, left and right, and monitor the on-site construction conditions of various parts.

[0003] The fixed surveillance camera position cannot be moved. Even if the camera rotates 360 degrees in all directions, it can only observe the construction situation at a fixed point. In order to allow the on-site camera to move remotely and observe the construction situation at other locations, we provide a drone-based remote monitoring camera system and usage method to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a drone-based remote monitoring camera system and a method of use to solve the problem of limited viewing angle of fixed cameras and improve the on-site monitoring effect.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] Based on the UAV remote monitoring camera system, including a protective cover, a wireless signal sending and receiving antenna, a UAV, a wireless controller, a camera, a UAV landing foot, a landing platform, an external power cord, and a UAV platform column;

[0007] An external power cord is installed inside the drone platform column, a landing platform is fixedly installed on the top of the drone platform column, and a protective cover is installed on the top of the landing platform;

[0008] A drone is placed on the landing platform, and a rotating camera is installed at the bottom of the drone; a wireless controller is installed in the landing platform;

[0009] A wireless signal transmitting and receiving antenna is installed on one side of the landing platform;

[0010] A drone propeller is installed on the top of the drone, a drone landing foot is installed on the bottom of the drone, a receiving coil is installed on the drone landing foot; and a transmitting coil is installed on the landing platform.

[0011] In a further technical solution, a rotating shaft portion is installed on the side of the protective cover, and a steering motor is installed in the landing platform, a drive sprocket 1 is installed on the output end of the steering motor, and a drive sprocket 2 is installed on the rotating shaft portion, and the drive sprocket 1 and the drive sprocket 2 are connected by installing a transmission chain.

[0012] In a further technical solution, the drone includes a frame, and a drone footing is arranged at the bottom of the frame; a flight motor, a flight control board, an electronic speed regulator and a receiver are installed on the frame, and the flight motor is suitable for driving the drone propeller to rotate; a remote controller is arranged outside the drone, and the flight control board is used to process the external remote controller signal; the receiver is used to receive the remote controller signal; the electronic speed regulator is used to amplify the flight control board control signal and transmit it to the flight motor;

[0013] A battery box and a transmitter are installed at the bottom of the drone. The battery box is electrically connected to the flight motor through a control panel and wires. The transmitter is suitable for uploading the camera footage in real time.

[0014] In a further technical solution, the wireless controller has a built-in wireless mobile network SIM card, and uses mobile network signals to communicate with an external remote server, and the remote server receives and sends signals, and transmits image and video signals.

[0015] In a further technical solution, a bidirectional lead screw and a lateral motor are installed on the landing platform, the lateral motor is installed in parallel with the steering motor, a position gear 1 is installed at the output end of the lateral motor, and a position gear 2 is meshed with the upper end of the position gear 1;

[0016] A bearing seat is installed on the landing platform, and two groups of bearing seats are provided, and a bidirectional lead screw is installed between them, and two groups of nut seats are installed on the bidirectional lead screw; the transverse motor is suitable for driving the driving position gear 1 to engage the transmission position gear 2 and rotate the bidirectional lead screw; push plates are installed on the same side of the two groups of nut seats, and the two groups of push plates are suitable for moving toward or away from each other, and are suitable for pushing the UAV to the designated transmitting coil position.

[0017] In a further technical solution, an inclination measuring dial is installed on the camera, and a laser radar is installed on the inclination measuring dial. A GPS module is arranged on the laser radar, which is suitable for three-dimensional measurement of long-distance point coordinates.

[0018] The method for using the drone remote monitoring camera system includes the following steps:

[0019] Step 1: First install the drone platform column, which requires digging the foundation. The column tube has a power cord connected to the external power supply. Then install the drone landing platform, which has a wireless controller inside. The wireless controller converts the external power supply into the drone charging voltage through the transmitting coil, so that the drone with the receiving coil can be inductively charged.

[0020] Step 2: Install the wireless signal sending and receiving antenna and the wireless mobile network SIM card, and use the drone to measure and solve the four parameters and elevation fitting parameters at the measurement control points near the project. At least three points are required to solve the four parameters and elevation plane fitting, so that the drone positioning accuracy can be improved to the RTK accuracy of surveying and mapping.

[0021] Step 3: When measuring the three-dimensional coordinates of a point, use the camera on the drone to aim downward at the point, and then use the laser radar to measure the distance to measure the three-dimensional coordinates of the control point;

[0022] Step 4, coordinate parameter solution; after installation is completed, test it and place the drone at the measurement control point to check the measurement accuracy. If the deviation is greater than 5cm, repeat the parameter solution;

[0023] Step 5: After installing the protective cover, check whether the protective cover automatically opens during takeoff and automatically closes after landing;

[0024] After the installation is completed, a flight test is conducted. The remote control platform software of this system is installed on the remote computer. The external remote controller is used to communicate with the UAV system, control the UAV to take off, move the construction site to observe the construction situation from different angles, and remotely control the camera of the UAV system to record videos or take photos.

[0025] During the flight, the UAV GPS plus inertial navigation attitude measurement and laser radar are used to measure the three-dimensional coordinates of the characteristic points of the structure and calculate the horizontal distance, slope distance and height difference between the points;

[0026] When landing, the laser radar is used to measure the distance to the landing platform, prompting the remote control to open the protective cover, the drone lands, and the lateral motor is turned on synchronously. The lateral motor drives the position gear 1 to engage the transmission position gear 2, and rotates the bidirectional lead screw to clamp the drone to the transmitting coil for wireless charging.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention uses the remote camera effect of the drone to achieve long-distance shooting and wide-angle shooting, and realize multi-position monitoring. The present invention can continuously protect the drone when it lands on the landing platform through the protective cover, and can also realize the monitoring of fixed positions. The present invention realizes the opening and closing of the protective cover through the external drive sprocket one and the drive sprocket two; realizes the rotation of the bidirectional lead screw through the transmission of the position gear one and the position gear two; and realizes the effective positioning of the drone on the transmitting coil by indirectly clamping it on the landed drone through two sets of nut seats. The external power line continuously supplies power to the transmitting coil after stepping down the voltage, producing a wireless charging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of a remote monitoring camera system based on an unmanned aerial vehicle according to Embodiment 1 of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of a remote monitoring camera system based on an unmanned aerial vehicle according to Embodiment 2 of the present invention;

[0031] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0032] Figure 4 for Figure 2 The enlarged structural diagram at B in the middle;

[0033] Figure 5 A top view of the drone-based remote monitoring camera system of the present invention;

[0034] Figure 6 A schematic diagram of a drone of the present invention;

[0035] Figure 7 The figure is an internal frame diagram of the UAV of the present invention.

[0036] In the figure: 1. Protective cover; 2. Wireless signal sending and receiving antenna; 3. UAV; 4. UAV propeller; 5. Wireless controller; 6. Camera; 7. UAV landing foot; 8. Landing platform; 9. External power cord; 10. UAV platform column; 11. Steering motor; 12. Driving sprocket 1; 13. Driving sprocket 2; 14. Transmission chain; 15. Rack; 16. Battery box; 17. Bidirectional lead screw; 18. Transverse motor; 19. Position gear 1; 20. Position gear 2; 21. Bearing seat; 22. Nut seat; 23. Push plate; 24. Receiving coil; 25. Transmitting coil; 26. Inclination measuring dial. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0038] Example 1

[0039] See also Figure 1 , the present invention provides a technical solution:

[0040] The remote monitoring camera system based on the drone includes a protective cover 1, a wireless signal sending and receiving antenna 2, a drone 3, a wireless controller 5, a camera 6, a drone landing foot 7, a landing platform 8, an external power cord 9, and a drone platform column 10;

[0041] An external power line 9 is installed inside the drone platform column 10, a landing platform 8 is fixedly installed on the top of the drone platform column 10, and a protective cover 1 is installed on the top of the landing platform 8;

[0042] A drone 3 is movably placed on the landing platform 8, and a rotating camera 6 is installed at the bottom of the drone 3; a wireless controller 5 is installed in the landing platform 8;

[0043] A wireless signal transmitting and receiving antenna 2 is installed on one side of the landing platform 8;

[0044] A drone propeller 4 is installed on the top of the drone 3 , a drone foot 7 is installed on the bottom of the drone 3 , a receiving coil 24 is installed on the drone foot 7 ; and a transmitting coil 25 is installed on the landing platform 8 .

[0045] The method for using the drone remote monitoring camera system includes the following steps:

[0046] First, install the drone platform column 10, which requires digging the foundation. The column tube has a power cord 9 connected to the external power supply. Then install the drone landing platform 8, which has a wireless controller 5 inside. The wireless controller 5 converts the external power supply 220V into the drone charging voltage and charges the drone feet through the charging interface 7. In order to prevent the external power supply from being cut off, the wireless controller has a large-capacity rechargeable lithium battery to maintain data transmission, drone control and charging.

[0047] Install the wireless signal antenna 2 and the wireless controller mobile signal SIM card. You can use the Internet of Things card. Use the remote computer to control the wireless controller to enter the account and password to join CORS and join the local reference base station. If there is no CORS or no blind spot of the wireless mobile network in the local area, you can use a wired network cable to connect to the remote computer and then install a fixed-position GPS base station. Use the drone to place the measurement control points near the project to measure and solve the four parameters and elevation fitting parameters. At least three points are required to solve the four parameters and elevation plane fitting, so that the drone positioning accuracy can be improved to the surveying and mapping RTK accuracy.

[0048] When measuring the three-dimensional coordinates of a point, the drone camera 6 is used to aim downward at the point, and then the three-dimensional coordinates of the control point are measured using the laser radar ranging and the height difference between the phase center of the drone camera and the measurement control point.

[0049] After the coordinate parameters are solved, there is no need to solve the parameters in the future. However, if there is no CORS, when a fixed base station is installed, the fixed base station can use wireless signals to send carrier phase data to the drone. If it is not a fixed base station, a temporary base station needs to be corrected with the measurement control point. This is also the method used in domestic RTK measurement.

[0050] After the installation is completed, the test is carried out. The drone is placed at the measurement control point for a measurement accuracy check. If the deviation is greater than 5cm, the parameters are solved again or other reasons are found.

[0051] After installing the protective cover 1, check whether the protective cover automatically opens during takeoff and automatically closes after landing.

[0052] After the installation is complete, a flight test is conducted. The remote computer installs the remote control platform software of this system. This software can also be embedded in the smart construction site platform. Use this system APP to communicate with the drone system, control the drone to take off, move the construction site to observe the construction situation from different angles, and remotely control the camera 6 of the drone system 3 to record videos or take photos. The drone has its own power display. When the power is less than 20%, it will warn. The remote computer controls the drone to return to the platform 8 for positioning 7 charging. When the power is less than 10%, it will automatically return to the platform 8 for charging.

[0053] During the flight, the drone's GPS plus inertial navigation attitude measurement and lidar can be used to measure the three-dimensional coordinates of the characteristic points of the structure and calculate the horizontal distance, slope distance, and height difference between the points. This function can be used to check the distance between oxygen cylinders and acetylene cylinders in gas welding, etc.

[0054] The drone lands on platform 8 for automatic charging. After being fully charged, the drone system automatically turns off the power to ensure that the drone battery is fully charged.

[0055] Because the drone system needs to be charged, the usage time of one charge is limited and it cannot be monitored 24 hours a day. It can be used for real-time inspection of the construction site. It can also fly at a fixed position and stop at a fixed point for monitoring. The column 10 can be installed on site and monitored after opening the protective cover. It can be used as a fixed camera, but the platform diameter is not greater than 30cm, and the height between the drone foot 7 and the charging interface and the platform 8 is not less than 15cm. In addition to being used as a mobile camera, this system can also be used as a fixed camera. When used as a fixed camera, the drone automatically turns on the charging and use state. It can also be used as a low-precision measuring instrument, which greatly expands the scope of use of this system.

[0056] Example 2

[0057] like Figure 2-7As shown, it is another embodiment of the present invention. On the basis of Example 1, a rotating shaft portion is installed on the side of the protective cover 1, and a steering motor 11 is installed in the landing platform 8. A driving sprocket 12 is installed at the output end of the steering motor 11, and a driving sprocket 2 13 is installed on the rotating shaft portion. The driving sprocket 12 and the driving sprocket 2 13 are connected by installing a transmission chain 14.

[0058] The drone 3 includes a frame 15, and a drone foot 7 is arranged at the bottom of the frame 15; a flight motor, a flight control board, an electronic speed regulator and a receiver are installed on the frame 15, and the flight motor is suitable for driving the drone propeller 4 to rotate; a remote controller is arranged outside the drone 3, and the flight control board is used to process the external remote controller signal; the receiver is used to receive the remote controller signal; the electronic speed regulator is used to amplify the flight control board control signal and transmit it to the flight motor;

[0059] A battery box 16 and a transmitter are installed at the bottom of the drone 3. The battery box 16 is electrically connected to the flight motor via a control panel and wires. The transmitter is suitable for uploading the images taken by the camera 6 in real time.

[0060] In a further technical solution, the wireless controller 5 has a built-in wireless mobile network SIM card, and uses mobile network signals to communicate with an external remote server, and the remote server receives and sends signals, and transmits image and video signals.

[0061] like Figure 2 As shown, a bidirectional lead screw 17 and a transverse motor 18 are installed on the landing platform 8. The transverse motor 18 is installed in parallel with the steering motor 11. A position gear 19 is installed at the output end of the transverse motor 18. The upper end of the position gear 19 is meshed with a position gear 20.

[0062] A bearing seat 21 is installed on the landing platform 8, and two groups of bearing seats 21 are provided, and a bidirectional lead screw 17 is installed between them, and two groups of nut seats 22 are installed on the bidirectional lead screw 17; the transverse motor 18 is suitable for driving the driving position gear 19 to engage the transmission position gear 2 20 and rotate the bidirectional lead screw 17; push plates 23 are installed on the same side of the two groups of nut seats 22, and the two groups of push plates 23 are suitable for moving toward or away from each other, and are suitable for pushing the drone 3 to the designated transmitting coil 25 position.

[0063] like Figure 6 As shown, the camera 6 is mounted with an inclination measuring dial 26, and a laser radar is mounted on the inclination measuring dial 26, and a GPS module is arranged on the laser radar, which is suitable for three-dimensional measurement of long-distance point coordinates.

[0064] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Based on the UAV remote monitoring camera system, it is characterized by: It includes a protective cover (1), a wireless signal transmitting and receiving antenna (2), a drone (3), a wireless controller (5), a camera (6), a drone landing foot (7), a landing platform (8), an external power cord (9), and a drone platform column (10); An external power line (9) is installed inside the drone platform column (10), a landing platform (8) is fixedly installed on the top of the drone platform column (10), and a protective cover (1) is installed on the top of the landing platform (8); A drone (3) is movably placed on the landing platform (8), and a rotating camera (6) is installed at the bottom of the drone (3); a wireless controller (5) is installed in the landing platform (8); A wireless signal transmitting and receiving antenna (2) is installed on one side of the landing platform (8); A drone propeller (4) is installed on the top of the drone (3), a drone landing foot (7) is installed on the bottom of the drone (3), a receiving coil (24) is installed on the drone landing foot (7), and a transmitting coil (25) is installed on the landing platform (8).

2. The drone-based remote monitoring camera system according to claim 1 is characterized in that: A rotating shaft portion is installed on the side of the protective cover (1), and a steering motor (11) is installed in the landing platform (8). A driving sprocket 1 (12) is installed at the output end of the steering motor (11), and a driving sprocket 2 (13) is installed on the rotating shaft portion. The driving sprocket 1 (12) and the driving sprocket 2 (13) are connected by installing a transmission chain (14).

3. The drone-based remote monitoring camera system according to claim 1 is characterized in that: The drone (3) comprises a frame (15), the bottom of which is provided with a drone footing (7); a flight motor, a flight control board, an electronic speed regulator and a receiver are installed on the frame (15), the flight motor is suitable for driving the drone propeller (4) to rotate; a remote controller is arranged outside the drone (3), the flight control board is used for processing external remote controller signals; and the receiver is used for receiving remote controller signals; The electronic speed controller is used to amplify the flight control board control signal and transmit it to the flight motor; A battery box (16) and a transmitter are installed at the bottom of the drone (3); the battery box (16) is electrically connected to the flight motor via a control panel and wires; the transmitter is suitable for uploading images taken by the camera (6) in real time.

4. The drone-based remote monitoring camera system according to claim 1 is characterized in that: The wireless controller (5) has a built-in wireless mobile network SIM card and uses mobile network signals to communicate with an external remote server. The remote server receives and sends signals and transmits image and video signals.

5. The drone-based remote monitoring camera system according to claim 1 is characterized in that: A bidirectional lead screw (17) and a transverse motor (18) are installed on the landing platform (8). The transverse motor (18) is installed in parallel with the steering motor (11). A position gear 1 (19) is installed at the output end of the transverse motor (18). The upper end of the position gear 1 (19) is meshed with a position gear 2 (20). A bearing seat (21) is installed on the landing platform (8), and two groups of bearing seats (21) are provided, and a bidirectional lead screw (17) is installed between them, and two groups of nut seats (22) are installed on the bidirectional lead screw (17); the transverse motor (18) is suitable for driving the driving position gear 1 (19) to engage the transmission position gear 2 (20) and rotate the bidirectional lead screw (17); a push plate (23) is installed on the same side of the two groups of nut seats (22), and the two groups of push plates (23) are suitable for moving towards or away from each other, and are suitable for pushing the drone (3) to reach the designated transmitting coil (25) position.

6. The drone-based remote monitoring camera system according to claim 1, characterized in that: The camera (6) is equipped with an inclination measuring disc (26), and a laser radar is installed on the inclination measuring disc (26). A GPS module is arranged on the laser radar, which is suitable for long-distance point coordinate three-dimensional measurement.

7. The method for using the drone remote monitoring camera system is characterized in that: The following steps are involved: Step 1, first install the drone platform column (10), which requires digging a foundation, and the column tube is equipped with a power cord (9) to connect to the external power supply; then install the drone landing platform (8), which is equipped with a wireless controller (5) inside. The wireless controller (5) converts the external power supply into a drone charging voltage through a transmitting coil (25), so that the drone (3) with a receiving coil (24) is inductively charged; Step 2, install a wireless signal transmitting and receiving antenna (2) and a wireless mobile network SIM card, use a drone (3) to place a measurement control point near the project to measure and solve the four parameters and the elevation fitting parameters, at least three points can solve the four parameters and the elevation plane fitting, so that the positioning accuracy of the drone (3) is improved to the RTK accuracy of surveying and mapping; Step 3, when measuring the three-dimensional coordinates of the point, use the camera (6) on the drone (3) to aim downward at the point, and then use the laser radar to measure the distance to measure the three-dimensional coordinates of the control point; Step 4, coordinate parameter solution; after installation is completed, test it and place the drone at the measurement control point to check the measurement accuracy. If the deviation is greater than 5cm, repeat the parameter solution; Step 5, after installing the protective cover (1), check whether the protective cover automatically opens during takeoff and automatically closes after landing; After the installation is completed, a flight test is conducted. The remote control platform software of the system is installed on the remote computer. The external remote controller is used to communicate with the drone system, control the drone to take off, move the construction site to observe the construction situation from different angles, and remotely control the camera (6) of the drone system (3) to record videos or take photos. During the flight, the UAV GPS plus inertial navigation attitude measurement and laser radar are used to measure the three-dimensional coordinates of the characteristic points of the structure and calculate the horizontal distance, slope distance and height difference between the points; During landing, the laser radar is used to measure the distance of the landing platform, prompting the remote controller to open the protective cover (1), the drone (3) lands, and the lateral motor (18) is turned on synchronously. The lateral motor (18) drives the position gear 1 (19) to mesh with the transmission position gear 2 (20), and rotates the bidirectional lead screw (17), clamping the drone (3) to the transmitting coil (25) for wireless charging.

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