Liquid level monitoring and alarming device based on radar sensing

Abstract

The invention relates to the technical field of monitoring equipment, in particular to a liquid level monitoring and alarming device based on radar sensing, which comprises an unmanned aerial vehicle and a radar liquid level meter, and the radar liquid level meter is connected with the unmanned aerial vehicle so that the unmanned aerial vehicle carries the radar liquid level meter to measure the height of the liquid level in the air through the radar liquid level meter. Wherein the radar liquid level meter is arranged below the unmanned aerial vehicle, the radar detection direction is downward, and the unmanned aerial vehicle is provided with detection software so that the height of the liquid level can be calculated by subtracting the distance, measured by the radar liquid level meter, between the unmanned aerial vehicle and the liquid level from the altitude measured by a GPS positioner in the unmanned aerial vehicle. The detection software stores the longitude, latitude and altitude of a plurality of positions on the unmanned aerial vehicle patrol route, and the detection software stores the normal height of the liquid level of the plurality of positions on the unmanned aerial vehicle patrol route. The system monitors the water level of the river through the unmanned aerial vehicle, is fast, safe and accurate, can save time and manpower, is low in cost and high in efficiency, integrates multiple functions, and solves the problems of river monitoring and management.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring equipment, and in particular to a liquid level monitoring and alarm device based on radar sensing. Background Art

[0002] In mountainous rivers, landslides often cause mountains to slide into rivers to form barrier lakes. This barrier lake will rise due to the water level. When the water level exceeds a certain height, the barrier lake will form a large mountain torrent that damages transportation facilities in the river, posing a huge threat to people's lives and property. The emergency management department monitors the water level of the river at all times. Currently, personnel are sent to monitor on site, which is unsafe for the staff and the information feedback is also delayed, which usually affects the decision-making of the management department.

[0003] When there is a barrier lake in the upper reaches of a river and there is a risk of dam collapse at any time, the management department needs to inform the people in the dangerous area downstream of the river of the dangerous situation and notify them to evacuate the dangerous area. At this time, if personnel are sent to notify, it may be too late and the dispatched personnel will be in danger. In addition, due to the sound of the flowing river, shouting from a distance may not work, and it is necessary to get close to pass the message. Summary of the invention

[0004] In order to solve the problems in the above-mentioned background technology, the present invention provides a liquid level monitoring and alarm device based on radar sensing, which is used for river water level monitoring and solves the problems of difficulty and high cost in river water level monitoring in the prior art.

[0005] The solution adopted by the present invention to solve its technical problem is: a liquid level monitoring and alarm device based on radar sensing, including a drone and a radar liquid level meter, the radar liquid level meter is connected to the drone so that the drone carries the radar liquid level meter and measures the height of the liquid level in the air through the radar liquid level meter, wherein the radar liquid level meter is arranged below the drone and the radar detection direction is downward, the drone is provided with detection software so as to calculate the height of the liquid level by subtracting the distance between the drone and the liquid level measured by the radar liquid level meter from the altitude measured by the GPS locator in the drone, the detection software stores the longitude, latitude and altitude of multiple positions on the drone inspection route, and the detection software stores the normal heights of the liquid levels at multiple positions on the drone inspection route.

[0006] Preferably, the drone is provided with alarm software so that when the liquid level exceeds the warning height, an alarm signal is sent out and the longitude, latitude and altitude of the liquid surface are recorded. The alarm signal includes the liquid level exceeding the warning value, the longitude and latitude of the liquid level. The alarm software sends the alarm information to the monitoring center through the wireless communication function of the drone.

[0007] Preferably, the distance between two adjacent positions in the plurality of positions on the inspection route of the drone is equal. In this way, by using a plurality of positions to set the inspection route, the storage space occupied by the stored data can be greatly reduced.

[0008] Preferably, the longitude difference between two adjacent positions among the multiple positions on the drone patrol route is equal, the latitude difference between two adjacent positions among the multiple positions on the drone patrol route is equal, and the altitude difference between two adjacent positions among the multiple positions on the drone patrol route is equal.

[0009] Preferably, the longitude difference between two adjacent positions among the multiple positions on the drone inspection route is equal and / or the latitude difference between two adjacent positions among the multiple positions is equal and / or the altitude difference between two adjacent positions among the multiple positions is equal.

[0010] Preferably, the altitude at which the drone flies along the stored inspection route minus the normal height of the storage liquid level is less than 70 meters.

[0011] Preferably, the altitude at which the drone flies along the stored inspection route is 50 meters higher than the stored normal liquid level.

[0012] Preferably, a camera is also included, and the camera is connected to the drone so that the camera can take pictures of the liquid level exceeding the warning height and the surrounding conditions and send them to the monitoring center.

[0013] Preferably, it also includes a loudspeaker, which is connected to the drone so that the monitoring center can control the drone to notify people in the danger zone to evacuate.

[0014] Preferably, a microphone is also included, and the microphone is connected to the drone so that the monitoring center can communicate with the people in the dangerous area through the microphone.

[0015] Furthermore, it also includes a protective net for preventing the propeller from colliding with other objects. The protective net includes a warp made of elastic metal wire and a weft made of elastic metal wire. The warp and the weft are connected to the drone after being connected. The surfaces of the warp and the weft are silver-plated to prevent rust. The protective net is in the shape of an ellipsoid. The propeller is placed in the middle of the protective net. The warp is evenly distributed on the weft. There is at least one weft and at least four warps. The diameter of the warp is equal to the diameter of the weft. The upper ends of the warp intersect at one point, and the lower ends of the warp are connected to the drone.

[0016] To sum up, the beneficial effects of the present invention are: monitoring the water level of the river by drones, and notifying people in dangerous areas to evacuate by drones, which is fast, safe and accurate, can save time and manpower, has low cost and high efficiency, integrates multiple functions into one, and solves the problems of river monitoring and management.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the distance measurement of the present invention;

[0019] Figure 2 A schematic diagram of the arrangement of components of the present invention;

[0020] Figure 3 It is a three-dimensional diagram of the protective net of the present invention.

[0021] In the picture: 1. Drone; 2. Radar level meter; 3. Camera; 4. Speaker; 5. Longitude; 6. Weft. DETAILED DESCRIPTION

[0022] In order to make the content of the present invention more clearly understood, the present invention is further described below based on specific embodiments in conjunction with the accompanying drawings.

[0023] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0024] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] Referring to the accompanying drawings, a liquid level monitoring and alarm device based on radar sensing includes a drone and a radar level meter 2. The radar level meter 2 is connected to the drone so that the drone 1 carries the radar level meter 2 and measures the height of the liquid level in the air through the radar level meter 2, wherein the radar level meter 2 is arranged below the drone 1 and the radar detection direction is downward. The drone 1 is provided with detection software so that the altitude measured by the GPS locator in the drone 1 minus the distance between the drone 1 and the liquid level measured by the radar level meter 2 is calculated as the height of the liquid level. The detection software stores the longitude, latitude and altitude of multiple positions on the patrol route of the drone 1 so that the drone 1 flies according to the longitude, latitude and altitude of the stored patrol route to avoid collision with trees, mountains and power lines. The detection software stores the normal heights of the liquid levels at multiple positions on the patrol route of the drone 1 so as to determine whether the liquid level exceeds the warning height.

[0026] Furthermore, the drone 1 is provided with alarm software so that when the liquid level exceeds the warning height, an alarm signal is issued and the longitude, latitude and altitude of the liquid surface are recorded. The alarm signal includes the liquid level exceeding the warning value, the longitude and latitude of the liquid level. The alarm software sends the alarm information to the monitoring center through the wireless communication function of the drone 1.

[0027] Furthermore, the distance between two adjacent positions in the multiple positions on the inspection route of the drone 1 is equal. In this way, using multiple locations to set the inspection route can greatly reduce the storage space occupied by the stored data.

[0028] Furthermore, the longitude difference between two adjacent positions among the multiple positions on the patrol route of drone 1 is equal, the latitude difference between two adjacent positions among the multiple positions on the patrol route of drone 1 is equal, and the altitude difference between two adjacent positions among the multiple positions on the patrol route of drone 1 is equal.

[0029] Furthermore, the longitude difference between two adjacent positions in the plurality of positions on the inspection route of the drone 1 is equal and / or the latitude difference between two adjacent positions in the plurality of positions is equal and / or the altitude difference between two adjacent positions in the plurality of positions is equal.

[0030] Furthermore, the altitude at which the drone 1 flies along the stored inspection route minus the normal altitude of the storage liquid level is less than 70 meters. The detection distance of a civil radar is generally less than 70 meters.

[0031] Furthermore, the altitude at which the drone 1 flies according to the stored inspection route is 50 meters higher than the stored normal liquid level.

[0032] Furthermore, it also includes a camera 3, which is connected to the drone 1 so that the camera 3 can take pictures of the liquid level exceeding the warning height and the surrounding conditions and send them to the monitoring center.

[0033] Furthermore, it also includes a loudspeaker 4, which is connected to the drone 1 so that the monitoring center can control the drone to notify people in the danger zone to evacuate.

[0034] Furthermore, it also includes a microphone, which is connected to the drone 1 so that the monitoring center can communicate with the people in the dangerous area through the microphone.

[0035] Furthermore, it also includes a protective net for preventing the propeller from colliding with other objects. The protective net includes a warp 5 made of elastic metal wire and a weft 6 made of elastic metal wire. The warp 5 and the weft 6 are connected to the drone 1. The surfaces of the warp 5 and the weft 6 are silver-plated to prevent rust. The protective net is in the shape of an ellipsoid. The propeller is placed in the middle of the protective net. The warp 5 is evenly distributed on the weft 6. There is at least one weft 6 and at least four warp 5. The diameter of the warp 5 is equal to the diameter of the weft 6. The upper ends of the warp 5 intersect at one point, and the lower ends of the warp 5 are connected to the drone 1.

[0036] The present invention uses a drone 1 to monitor the water level of a river, and uses the drone 1 to notify people in dangerous areas to evacuate. It is fast, safe and accurate, can save time and manpower, has low cost and high efficiency, integrates multiple functions in one, and solves the problem of river monitoring and management. Using a drone 1 to monitor the water level of a river, information feedback is timely, and monitoring personnel can remotely control it, which also avoids posing a threat to the safety of monitoring personnel. Specifically, it has the following beneficial effects:

[0037] 1. The present invention uses a drone 1 to monitor the water level of a river, which is fast, safe and accurate, can save time and manpower, has low cost and high efficiency, integrates multiple functions, and solves the problem of river monitoring and management;

[0038] 2. The present invention provides a protective net to prevent the propeller from colliding with other objects;

[0039] 3. By setting a loudspeaker 4, the loudspeaker 4 is connected to the drone 1 so that the monitoring center can control the drone to notify people in the dangerous area to evacuate;

[0040] 4. By setting up a camera 3, the camera 3 is connected to the drone 1 so that the camera 3 can take pictures of the liquid level exceeding the warning height and the surrounding conditions and send them to the monitoring center;

[0041] 5. By setting the distances between two adjacent positions in the multiple positions on the inspection route of the drone 1 to be equal, the storage space occupied by the stored data can be greatly reduced by setting the inspection route with multiple locations.

[0042] The embodiments described above are only preferred implementation modes of the present invention and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and modifications made by those skilled in the art on the basis of the invention shall fall within the protection scope of the present invention.

Claims

1. A liquid level monitoring and alarm device based on radar sensing, characterized in that: It includes an unmanned aerial vehicle and a radar level meter, wherein the radar level meter is connected to the unmanned aerial vehicle so that the unmanned aerial vehicle carries the radar level meter and measures the height of the liquid level in the air through the radar level meter, wherein the radar level meter is arranged below the unmanned aerial vehicle and the radar detection direction is downward, and the unmanned aerial vehicle is provided with detection software so as to calculate the height of the liquid level by subtracting the distance between the unmanned aerial vehicle and the liquid level measured by the radar level meter from the altitude measured by the GPS locator in the unmanned aerial vehicle, and the detection software stores the longitude, latitude and altitude of multiple locations on the unmanned aerial vehicle inspection route, and the detection software stores the normal heights of the liquid levels at multiple locations on the unmanned aerial vehicle inspection route.

2. The liquid level monitoring and alarm device according to claim 1, characterized in that: The drone is provided with alarm software so as to send out an alarm signal when the liquid level exceeds the warning height and record the longitude, latitude and altitude of the liquid surface. The alarm signal includes the liquid level exceeding the warning value, the longitude and latitude of the liquid level. The alarm software sends the alarm information to the monitoring center through the wireless communication function of the drone.

3. The liquid level monitoring and alarm device according to claim 1, characterized in that: The distance between two adjacent positions among the multiple positions on the drone inspection route is equal.

4. The liquid level monitoring and alarm device according to claim 1, characterized in that: The longitude difference between two adjacent positions among the multiple positions on the drone patrol route is equal, the latitude difference between two adjacent positions among the multiple positions on the drone patrol route is equal, and the altitude difference between two adjacent positions among the multiple positions on the drone patrol route is equal.

5. The liquid level monitoring and alarm device according to claim 1, characterized in that: The longitude difference between two adjacent positions among the multiple positions on the drone inspection route is equal and / or the latitude difference between two adjacent positions among the multiple positions is equal and / or the altitude difference between two adjacent positions among the multiple positions is equal.

6. The liquid level monitoring and alarm device according to claim 1, characterized in that: The altitude at which the UAV flies along the stored inspection route minus the normal height of the storage liquid level is less than 70 meters.

7. The liquid level monitoring and alarm device according to claim 6, characterized in that: The altitude at which the drone flies according to the stored inspection route is 50 meters higher than the stored normal liquid level.

8. The liquid level monitoring and alarm device according to claim 1, characterized in that: The device also includes a camera, which is connected to the drone so that the camera can take pictures of the liquid level exceeding the warning height and the surrounding conditions and send them to the monitoring center.

9. The liquid level monitoring and alarm device according to claim 1, characterized in that: It also includes a loudspeaker, which is connected to the drone so that the monitoring center can control the drone to notify people in the danger zone to evacuate.

10. The liquid level monitoring and alarm device according to claim 1, characterized in that: It also includes a protective net for preventing the propeller from colliding with other objects, the protective net includes a warp made of elastic metal wire and a weft made of elastic metal wire, the warp and weft are connected to the drone after being connected, the surfaces of the warp and weft are silver-plated to prevent rust, the protective net is in the shape of an ellipsoid, the propeller is placed in the middle of the protective net, the warp is evenly distributed on the weft, there is at least one weft and at least four warps, the diameter of the warp is equal to the diameter of the weft, the upper ends of the warp intersect at one point, and the lower ends of the warp are connected to the drone.

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