An intelligent surveying and mapping drone system

Abstract

An intelligent surveying and mapping UAV system includes a UAV body with surveying and mapping functions, and also has a receiving end mechanism and a transmitting end mechanism; the transmitting end mechanism includes a wireless transmitting circuit module and a wireless receiving circuit A installed in the remote control end of the UAV body and electrically connected; the receiving end mechanism includes a power switch, an electric linear slide, a time control circuit, a motor reduction mechanism, a rotating power supply device, a wireless receiving circuit B, a wireless transmitting circuit, and a photoelectric switch installed together; the motor reduction mechanism is installed at the lower end of the shell of the UAV body, and the power switch, the wireless receiving circuit B, and the wireless transmitting circuit are installed in the shell of the UAV body and electrically connected to the motor reduction mechanism, the electric linear slide, and the photoelectric switch. The present invention can perform full coverage detection of the ground area, and can wirelessly send signals to the control personnel end after detecting obstacles. The flight control personnel can slow down the landing speed of the UAV, which provides strong technical support for the smooth landing of the UAV body.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle equipment, in particular to an intelligent surveying and mapping unmanned aerial vehicle system. Background Art

[0002] With the development of science and technology and the progress of society, the use of drones is increasing and widely used in industry, agriculture, military and other civil fields. The drone mapping system is based on drones as carriers, and various mapping equipment is carried on the drones. Then the drones complete the mapping of the ground through the mapping equipment during flight. In actual operation, the drone-based mapping equipment, especially when the drone lands, due to the different topography and visibility of the operating area, and when the drone is far away from the control personnel's line of sight (for example, the flight control personnel stand in a limited area to control the flight of the drone, and the terrain around is not convenient for the drone to land, while the area far away from the flight control personnel is relatively wide and suitable for landing), there is a chance that the drone will be damaged by direct collision with ground obstacles or the ground due to the control personnel's operational errors, causing great losses to the user.

[0003] Although there are also methods such as installing a photoelectric switch or a laser rangefinder (hereinafter referred to as a probe) at the lower end of the drone body in the existing technology to detect the distance between the drone and the ground before landing, and then prompt the control personnel to operate with caution, the installed probe is in a fixed mode, that is, a corresponding probe can only detect the distance between a point on the ground vertically. In this way, when the detection beam emitted by the probe in a straight line deviates from the ground obstacle during landing, the control personnel cannot get a prompt, which may cause the drone to collide with the obstacle and cause a damage accident. Although multiple probes can be installed at the lower end of the drone to achieve multi-point detection, installing multiple probes will increase costs and is not compact. In addition, even if multiple probes are installed, there will inevitably be gaps between the multiple probes, and it is impossible to achieve full coverage detection without dead angles. There are still certain safety hazards. Based on the above, it is particularly necessary to provide a surveying and mapping drone that can ensure a smooth and safe landing. Summary of the invention

[0004] In order to overcome the shortcomings of existing UAVs used for surveying and mapping, which are easily affected by the external environment and then damaged by operating errors before landing due to technical limitations, and the disadvantage that existing probes cannot ensure effective coverage of the distance between the UAV and the ground to detect obstacles, the present invention provides a UAV body with surveying and mapping function. The overall equipment structure is simple and compact. Before the UAV body lands in the application, the control personnel can remotely start the relevant equipment. When working, the relevant equipment can drive the photoelectric switch to rotate 360 ​​degrees and move back and forth horizontally to the left and right, and conduct full coverage detection of the ground without dead angles. After detecting obstacles or a certain distance from the ground, it can wirelessly send signals to the control personnel to prompt cautious operation, thereby providing a smart surveying and mapping UAV system that provides strong technical support for the smooth landing of the UAV body.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An intelligent mapping UAV system comprises a UAV body with mapping function, characterized in that it also comprises a receiving end mechanism and a transmitting end mechanism; the transmitting end mechanism comprises a wireless transmitting circuit module and a wireless receiving circuit A installed in the remote control end of the UAV body; the receiving end mechanism comprises a power switch, an electric linear slide, a timing circuit, a motor reduction mechanism, a rotating power supply device, a wireless receiving circuit B, a wireless transmitting circuit, and a photoelectric switch; the motor reduction mechanism is vertically installed at the lower end of the shell of the UAV body with the power output shaft facing downward, the rotating power supply device comprises at least two ball bearings, the two bearings are spaced apart from each other at a distance, and their inner rings are respectively insulated and installed at the upper end of the power output shaft of the motor reduction mechanism, the outer rings of the two bearings are insulated and installed with fixing tubes, the upper ends of the fixing tubes are installed at the lower end of the shell of the motor reduction mechanism, and the outer rings and inner rings of the two bearings are respectively installed Equipped with wires, one side of the upper end of the shell of the electric linear slide is installed on the lower end of the power output shaft of the motor reduction mechanism, the shell of the photoelectric switch is vertically installed at the lower end of the sliding block of the electric linear slide and its detection head is located at the lower part; the timing control circuit is installed in the component box on one side of the upper end of the shell of the electric linear slide, and the power switch, the wireless receiving circuit B, and the wireless transmitting circuit are installed in the shell of the drone body; the power output end of the wireless receiving circuit B and the signal input end of the wireless transmitting circuit are electrically connected to the two outer rings of the bearings respectively, the two inner rings of the bearings are electrically connected to the timing control circuit, one end of the power input of the photoelectric switch and the signal output end of the photoelectric switch respectively, the other end of the power input of the timing control circuit, the photoelectric switch, and the motor reduction mechanism is electrically connected to the shell of the electric linear slide, and the power output end of the timing control circuit is electrically connected to the power input end of the electric linear slide.

[0007] Furthermore, the bearing is a metal ball bearing.

[0008] Furthermore, the wireless receiving circuit A includes an electrically connected wireless receiving circuit module, a resistor, an NPN transistor and a buzzer, the positive power input end of the wireless receiving circuit module is connected to the positive power input end of the buzzer, the first output end of the wireless receiving circuit module is connected to one end of the resistor, the other end of the resistor is connected to the base of the NPN transistor, the collector of the NPN transistor is connected to the negative power input end of the buzzer, and the negative power input end of the wireless receiving circuit module is connected to the emitter of the NPN transistor.

[0009] Furthermore, the motor reduction mechanism is a coaxial motor gear reducer.

[0010] Furthermore, the timing control circuit includes an electrically connected timing switch and a relay, the positive power input terminal of the timing switch is connected to the positive control power input terminal of the relay, the negative power input terminal of the timing switch is connected to the negative control power input terminal of the relay, and the power output terminal of the timing switch is connected to both ends of the power input of the relay; the photoelectric switch is a PNP reflective photoelectric switch.

[0011] Furthermore, the wireless receiving circuit B includes an electrically connected wireless receiving circuit module, a resistor, an NPN transistor, and a relay. The positive power input end of the wireless receiving circuit module is connected to the positive power input end and the control power input end of the relay. The second output end of the wireless receiving circuit module is connected to one end of the resistor, the other end of the resistor is connected to the base of the NPN transistor, the collector of the NPN transistor is connected to the negative power input end of the relay, and the negative power input end of the wireless receiving circuit module is connected to the emitter of the NPN transistor.

[0012] Furthermore, the wireless transmitting circuit includes an electrically connected wireless transmitting circuit module, a resistor, and an NPN transistor, one end of the resistor is connected to the base of the NPN transistor, the collector of the NPN transistor is connected to the negative power input terminal of the wireless transmitting circuit module, and two contacts under one of the wireless signal transmitting buttons of the wireless transmitting circuit module are electrically connected together.

[0013] The beneficial effects of the present invention are as follows: the present invention is based on a drone body with a mapping function, the overall equipment structure is simple and compact, and other usage methods and processes are completely consistent with existing drones with mapping functions. In the present invention, when the drone lands at a long distance or when the light is not good, the flight control personnel can start the automatic landing prompt function wirelessly. When the drone body is in the automatic landing prompt, the time control circuit and the like will control the electric linear slide to continuously rotate 360 ​​degrees, and the electric linear slide will drive the photoelectric switch to move back and forth left and right, so that the ground area can be continuously and fully covered without dead angles. After detecting an obstacle (a signal can also be sent at a certain distance from the ground), a signal can be wirelessly sent to the control personnel end. The flight control personnel can slow down the landing speed of the drone after receiving the signal, reducing the probability of the drone body landing too fast and being damaged due to obstacles on the ground. The present invention provides strong technical support for the smooth landing of the drone body. Based on the above, the present invention has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure and the partially enlarged structure of the present invention.

[0016] Figure 2 , 3 This is a circuit diagram of the present invention. DETAILED DESCRIPTION

[0017] Figure 1 , 2As shown in FIG. 3 , an intelligent surveying and mapping UAV system comprises a UAV body 1 having a surveying and mapping function, and also has a receiving end mechanism and a transmitting end mechanism; the transmitting end mechanism comprises a wireless transmitting circuit module A6 and a wireless receiving circuit A(1), and the wireless transmitting circuit module A6 and the wireless receiving circuit A(1) are installed on a circuit board inside a wireless remote control end 2 (flight control end) of the UAV body 1; the receiving end mechanism comprises a power switch S, a small electric linear slide M, a timing circuit 3, a motor reduction mechanism M1, a rotating power supply device, a wireless receiving circuit B4, a wireless Transmitting circuit 5, photoelectric switch A2; the upper end of the shell of the motor reduction mechanism M1 (which will not block the detection heads of the mapping systems on the drone body) is vertically installed on the lower end of the shell of the drone body 1 through a screw nut, and its power output shaft is located at the bottom, and the rotating power supply device includes two ball bearings 61, and a plastic insulating sleeve 62 is tightly installed on the upper end of the power output shaft of the motor reduction mechanism M1. The two bearings 61 are spaced a certain distance up and down, and their inner rings are tightly sleeved on the outer ends of the insulating sleeves 62 (the upper end bearing 61 is spaced a certain distance from the lower middle of the M1 shell of the motor reduction mechanism). The outer rings of the two bearings 61 are sleeved with an insulating sleeve 63, and the outer end of the insulating sleeve 63 is tightly sleeved with a fixed tube 64. The upper end of the fixed tube 64 is welded to the middle of the lower end of the housing of the motor reduction mechanism M1. The sleeve 63 and the fixed tube 64 have an opening at the corresponding positions on the left side ends. Two wires are welded to the outside of the left ends of the outer rings of the two bearings 61, and an open groove is vertically arranged on the left end of the insulating sleeve 62. A wire is welded to the inner ends of the inner rings of the two bearings 61 and led out from the lower end of the open groove. The right side of the upper end of the housing of the electric linear slide M is connected through a screw nut Installed at the lower end of the power output shaft of the motor reduction mechanism M1, the shell of the photoelectric switch A2 is vertically installed in the middle of the lower end of the sliding block of the electric linear slide M1 and its detection head is located at the lower end; the timing control circuit 3 is installed on the circuit board in the component box A7, and the component box A7 is installed on the upper left part of the shell of the electric linear slide M through a screw and nut, the power switch S (the power switch operating handle is located outside the front end of the component box B8), the wireless receiving circuit B4, and the wireless transmitting circuit 5 are installed in the component box B8, and the component box B8 is installed in the shell of the drone body 1 through a screw and nut.

[0018] Figure 1 , 2As shown in , 3, the housing of the electric linear slide M and the housing of the motor reduction mechanism M1 are electrically conductive; the bearing 61 is a copper ball bearing. The wireless transmitting circuit module A6 of the transmitting end mechanism is a finished wireless transmitting circuit module of model SF1500, which has four wireless signal transmitting buttons, which can send four different wireless signals respectively when pressed. The wireless receiving circuit A includes a finished wireless receiving circuit module of model SF1500 A5, a resistor R2, an NPN transistor Q2 and a buzzer B connected by circuit board wiring, the positive power input terminal 1 of the wireless receiving circuit module A5 is connected to the positive power input terminal of the buzzer B, the first output terminal 4 of the wireless receiving circuit module A5 (pins 2, 5, 6, and 7 are suspended) is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the base of the NPN transistor Q2, the collector of the NPN transistor Q2 is connected to the negative power input terminal of the buzzer B, and the negative power input terminal 3 of the wireless receiving circuit module A5 is connected to the emitter of the NPN transistor Q2. The small electric linear slide M is a finished small electric linear slide with a working voltage of 12V DC (power 15W). The two ends of the housing of the electric linear slide M are provided with limit switches. When the movable block moves to the right stop point or the left stop point, the power will be cut off and it will not work. It can only work with the reverse input power supply. The motor reduction mechanism M1 is a finished coaxial motor gear reducer with a working voltage of 12V DC and a power of 20W. The time control circuit includes a time control switch A1 and a relay K connected by circuit board wiring. The positive power input terminal 1 of the time control switch A1 is connected to the positive control power input terminal of the relay K, the negative power input terminal 2 of the time control switch A1 is connected to the negative control power input terminal of the relay K, and the power output terminals 3 and 4 of the time control switch A1 are connected to the two ends of the power input of the relay K respectively. The photoelectric switch A2 is a finished PNP type reflective photoelectric switch. The wireless receiving circuit B includes a wireless receiving circuit module finished product A4 of model SF1500, a resistor R3, an NPN transistor Q3, and a relay K1 connected via circuit board wiring. Pin 1 of the positive power input terminal of the wireless receiving circuit module A4 is connected to the positive power input terminal and the control power input terminal of the relay K1. Pin 5 of the second output terminal of the wireless receiving circuit module A4 is connected to one end of the resistor R3. The other end of the resistor R3 is connected to the base of the NPN transistor Q3. The collector of the NPN transistor Q3 is connected to the negative power input terminal of the relay K1. Pin 3 of the negative power input terminal of the wireless receiving circuit module A4 is connected to the emitter of the NPN transistor A4. The wireless transmitting circuit includes a wireless transmitting circuit module finished product A3 of model SF1500, a resistor R1, and an NPN transistor Q1 connected via circuit board wiring, one end of the resistor R1 is connected to the base of the NPN transistor Q1, the collector of the NPN transistor Q1 is connected to the negative power input terminal of the wireless transmitting circuit module A3, and the two contacts under the first wireless signal transmitting button S1 of the wireless transmitting circuit module A3 are pre-connected together via a wire.

[0019] Figure 1 , 2 As shown in Figure 3, the two ends of the power input of the wireless transmitting circuit module A6, the two ends of the power input of the wireless receiving circuit A, the 1st and 3rd pins of the wireless receiving circuit module A5 and the two poles of the battery G1 in the wireless remote control end of the drone body are connected by wires. The negative pole of the battery G on the drone body and the shell of the motor reduction mechanism M1 are grounded by wires, the positive pole of the battery G and one end of the power switch S are connected by wires, and the other end of the power switch S, the negative pole of the battery G and the positive power input end of the wireless receiving circuit B relay K1 and the emitter of the NPN transistor Q3 are connected by wires. The positive power output end of the wireless receiving circuit B, the normally open contact end of the relay K1, and the other end of the resistor R1 at the signal input end of the wireless transmitting circuit are connected to the wires connected to the outer rings W1 and W2 of the two bearings by wires. The wires connected to the inner rings N1 and N2 of the two bearings are connected to the positive power input end of the time control circuit, the 1st pin of the time control switch A1, the positive power input end of the photoelectric switch A2 and the 3rd pin of the signal output end of the photoelectric switch A2 by wires. The two ends of the power input of the motor reduction mechanism M1 and the two ends of the power output of the wireless receiving circuit B, the normally open contact end of the relay K1 and the emitter of the NPN transistor Q3 are connected by wires. The 2nd foot of the time control switch A1 at the negative power input end of the timing circuit, the 2nd foot of the negative power input end of the photoelectric switch A2, the negative power input end of the motor reduction mechanism M1 and the housing of the electric linear slide M are connected by wires, and the 3rd and 4th feet of the time control switch A1 at the power output end of the timing circuit and the two normally closed contact ends of the relay K are connected by wires to the positive and negative and negative and positive power input ends of the electric linear slide M. The other end of the power switch S and the positive power input end of the wireless transmitting circuit and the positive power input end of the wireless transmitting circuit module A3 are connected by wires.

[0020] Figure 1 , 2As shown in Figures 3 and 4, the present invention is based on a drone body 1 with a mapping function, and the overall device structure is simple and compact. The other use methods and processes are completely consistent with the existing drones with mapping functions. Before using the present invention, turn on the power switch S, so that the wireless receiving circuit B is in a powered working state. At the same time, the negative pole of the power output by the battery G on the drone body enters the negative power input end of the timing circuit and the photoelectric switch through the metal shell of the motor reduction mechanism M1 and the metal shell of the electric linear slide M. After the power output by the battery G1 at the flight control end of the drone body (located next to the operator) enters the power input end of the wireless transmitting circuit module A6 and the wireless receiving circuit A, both are in a powered working state. When the present invention uses the drone body 1 to complete the mapping work and needs to land at a relatively long distance from the flight control personnel (for example, the flight control personnel stand in a limited area to control the flight of the drone body 1, and the terrain around them is not convenient for the drone body 1 to land, while the area relatively far from the flight control personnel is relatively wide and suitable for landing), the flight control personnel can start the automatic landing prompt function wirelessly. When the flight control personnel looks far and controls the drone body 1 to land to a certain height through the wireless flight control equipment supporting the drone body, the flight control personnel presses the second transmitting button of the wireless transmitting circuit module A6 beside him, so the wireless transmitting circuit module A6 will transmit the second wireless closing signal. Within the range of 1500 meters, the wireless receiving circuit module A4 on the drone body 1 receives the second wireless closing signal, and its 5th foot will output a high level, which will enter the base of the NPN transistor Q3 through the voltage reduction and current limiting of the resistor R3, and the collector of the NPN transistor Q3 will be turned on to output a low level and enter the relay K1 negative power input terminal, relay K1 is energized to attract its control power input terminal and normally open contact terminal to close, and then, the 12V positive power supply output by the battery G enters the positive power supply input terminal of the timing control circuit, photoelectric switch A2, and motor reduction mechanism M1 through the outer ring W1 of one of the bearings 61, the bearing ball, and the bearing inner ring N1, so that the timing control circuit, photoelectric switch A2, and motor reduction mechanism M1 are energized to work; at the same time, the signal output terminal 3 pin of the photoelectric switch A2 enters the other end of the resistor R1 through the second bearing 61 inner ring N2, the bearing ball, and the bearing outer ring W2. After the motor reduction mechanism M1 is energized and working, its power output will drive the electric linear slide M and the photoelectric switch A2 to continuously rotate 360 ​​degrees (10 revolutions per minute). During the rotation, the inner rings of the two bearings and the balls rotate, and the outer rings of the two bearings do not rotate. This ensures that when the motor reduction mechanism rotates, the wires connected to the timing circuit and the photoelectric switch A2 do not rotate, which also ensures that the rotating photoelectric switch A2 and the timing circuit can remain energized and working during rotation.

[0021] Figure 1 , 2As shown in Figure 3, the motor deceleration mechanism M1 drives the electric linear slide M and the photoelectric switch A2 to rotate. After the time-controlled switch A1 is energized, it will cyclically output a certain time of power at a certain interval (for example, it will output 5 seconds of power every 5 seconds) to the power input ends of the relay K and the positive and negative power input ends of the electric linear slide M under the action of its internal circuit and the output power time of the 3rd and 4th pins set by the technicians. Therefore, the relay K is energized and attracted for 5 seconds every 5 seconds, and its control power input end and the normally closed contact end are open. During the time when the positive and negative poles of the electric linear slide M are energized, its sliding block drives the photoelectric switch A2 to move horizontally from right to left to the stop point. During the 5 seconds when the relay K loses power and does not attract, its two control power input ends and two normally closed contact ends are closed respectively. In this way, the negative and positive power input ends of the electric linear slide M are energized, and during the time when the negative and positive poles of the electric linear slide M are energized, its sliding block drives the photoelectric switch A2 to move horizontally from left to right to the stop point. Through the action of all the above-mentioned mechanisms and circuits, in the process of unmanned landing and touching the ground of the main body 1, the timing control circuit will control the electric linear slide to rotate 360 ​​degrees continuously through the motor deceleration mechanism M1, and the electric linear slide M will drive the photoelectric switch A2 to move back and forth, so that the ground area can be continuously and fully covered without dead angles. After the photoelectric switch A2 is energized, the infrared beam it emits will be directed directly toward the ground. When the distance between the ground and obstacles is large, the infrared beam emitted by the detection head of the photoelectric switch A2 is unobstructed, and the 3rd pin of the photoelectric switch A2 has no output, so the resistor R1 of the wireless transmission circuit will not input a high-level signal, and the negative pole of the corresponding wireless transmission circuit module A3 will not be energized and will not send a wireless signal. When the drone body 1 lands at a certain distance (for example, 4 meters) from the ground or obstacles, the infrared beam emitted by the detection head of the photoelectric switch A2 is blocked. Under the action of its internal circuit, the photoelectric switch A2 outputs a high level at pin 3, which enters the other end of the resistor R1 through the inner ring N2 and outer ring of the second bearing. The collector of the NPN transistor Q1 is turned on and the output of a low level enters the negative power input terminal of the wireless transmitting circuit module A3. Since the two contacts under the wireless signal transmitting button S1 of the wireless transmitting circuit module A3 are pre-connected by a wire, the wireless transmitting circuit module A3 will emit a first wireless closing signal.The wireless transmitting circuit module A3 transmits the first wireless closed signal. Within the range of 1500 meters, the wireless receiving circuit module A5 around the flight control personnel receives the first wireless closed signal, and its 4th pin will output a high level, which enters the base of the NPN transistor Q2 through the resistor R2 for voltage reduction and current limiting. The NPN transistor Q2 is turned on and the collector outputs a low level and enters the negative power input terminal of the buzzer B. Then the buzzer B is energized and emits a loud prompt sound. In this way, the remote flight control personnel can timely understand that the UAV body 1 is in the process of landing close to the ground or obstacles through the sound of the buzzer B, and can perform wireless control operations according to the specific situation (for example, the flight control personnel initially hear the continuous sound of the buzzer B, which means that the UAV body is landing, and the ground area under the detection head of the photoelectric switch A2 is basically flat, and the descent speed can be accelerated accordingly; for another example, the flight control personnel initially hear the intermittent sound of the buzzer B, which means that the UAV body is landing, and the ground area under the detection head of the photoelectric switch A2 is high and low, that is, some areas of the ground are high and some are low, with a height difference, and the descent speed can be reduced accordingly). Through the joint action of all the above-mentioned mechanisms and circuits, the flight control personnel can slow down the landing speed of the UAV after receiving the signal, reducing the probability of obstacles on the ground and the UAV body being damaged due to landing too quickly. This overcomes the shortcomings of existing UAVs used for surveying and mapping, which are easily affected by the external environment and damaged by operating errors before landing due to technical limitations, and the disadvantage that existing probes cannot guarantee effective coverage of the distance between the detection drone and the obstacles on the ground, and provides strong technical support for the smooth landing of the UAV body. Figure 3Among them, the NPN transistors Q1, Q2, and Q3 are of model 9013; the resistance values ​​of resistors R1, R2, and R3 are 1K; relays K and K1 are DC12V relays; buzzer B is a finished product of an active continuous sound buzzer alarm of model SF12V; time control switch A3 is a finished product of a fully automatic microcomputer time control switch of model KG316T. The microcomputer time control switch has seven buttons: cancel / restore, time adjustment, minute adjustment, week adjustment, automatic / manual, timing, and clock, and has two power input terminals 1 and 2, and two power output terminals 3 and 4. The user can press the seven buttons respectively to set the interval time for the two power output terminals to output power and the time for each power output; photoelectric switch A2 is of type The finished product of the long-distance infrared reflective photoelectric switch No. GP18-500DN1 has a working voltage of DC 12V. It has three connecting wires, two of which are power input wires and the other is a signal output wire. The lower end of the photoelectric switch A2 has a detection head. When working, the transmitter of the detection head will emit infrared light. When the infrared light emitted by the detection head is blocked by an object within the maximum range of 5 meters and is received by the receiving head of the detection head, the signal output line pin 3 will output a high level. When there is no object blocking it, the signal output line pin 3 will not output a high level. There is an adjustment knob in the upper end of the shell of the photoelectric switch A2. When the adjustment knob is adjusted to the left, the detection distance of the detection head becomes closer, and when it is adjusted to the right, the detection distance of the detection head becomes farther.

[0022] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. 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 are included in the present invention.

[0023] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method 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 the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An intelligent surveying and mapping UAV system, comprising a UAV body with surveying and mapping functions, characterized in that It also has a receiving end mechanism and a transmitting end mechanism; the transmitting end mechanism includes a wireless transmitting circuit module and a wireless receiving circuit A installed in the remote control end of the drone body; the receiving end mechanism includes a power switch, an electric linear slide, a timing circuit, a motor reduction mechanism, a rotating power supply device, a wireless receiving circuit B, a wireless transmitting circuit, and a photoelectric switch; the motor reduction mechanism is vertically installed at the lower end of the shell of the drone body with the power output shaft facing downward, and the rotating power supply device includes at least two ball bearings, the two bearings are spaced apart from each other, and their inner rings are insulated and installed on the upper end of the power output shaft of the motor reduction mechanism, the outer rings of the two bearings are insulated and installed with fixed tubes, the upper ends of the fixed tubes are installed at the lower end of the shell of the motor reduction mechanism, and the outer rings and inner rings of the two bearings are respectively installed with wires, one side of the upper end of the shell of the electric linear slide is installed at the lower end of the power output shaft of the motor reduction mechanism, the shell of the photoelectric switch is vertically installed at the lower end of the sliding block of the electric linear slide and its detection head is located at the lower part; the timing circuit is installed in the component box on one side of the upper end of the shell of the electric linear slide, the power switch, the wireless receiving circuit B, the wireless transmitting circuit The circuit is installed in the shell of the drone body; the power output end of the wireless receiving circuit B and the signal input end of the wireless transmitting circuit are electrically connected to the two outer rings of the bearings respectively, the two inner rings of the bearings are electrically connected to the timing circuit, the power input end of the photoelectric switch and the signal output end of the photoelectric switch respectively, the other end of the power input of the timing circuit, the photoelectric switch and the motor reduction mechanism is electrically connected to the shell of the electric linear slide, the power output end of the timing circuit is electrically connected to the power input end of the electric linear slide; after the motor reduction mechanism is powered on, its power The output shaft drives the electric linear slide and the photoelectric switch to rotate 360 ​​degrees continuously. During the rotation, the inner rings of the two bearings and the balls rotate, the outer rings of the two bearings do not rotate, and the wires connected to the timing control circuit and the photoelectric switch do not rotate. The photoelectric switch and the timing control circuit remain in an energized working state during the rotation. After the timing control circuit is energized, it outputs power to the positive and negative and negative and positive power input terminals of the electric linear slide at intervals. The sliding block of the electric linear slide drives the photoelectric switch to move horizontally from left to right and from right to left in a cycle, thereby realizing continuous and full coverage detection of the ground area without blind spots.

2. The intelligent surveying and mapping UAV system according to claim 1, characterized in that: The bearings are metal ball bearings.

3. The intelligent surveying and mapping UAV system according to claim 1, characterized in that: The wireless receiving circuit A includes an electrically connected wireless receiving circuit module, a resistor, an NPN transistor and a buzzer. The positive power input end of the wireless receiving circuit module is connected to the positive power input end of the buzzer, the first output end of the wireless receiving circuit module is connected to one end of the resistor, the other end of the resistor is connected to the base of the NPN transistor, the collector of the NPN transistor is connected to the negative power input end of the buzzer, and the negative power input end of the wireless receiving circuit module is connected to the emitter of the NPN transistor.

4. The intelligent surveying and mapping UAV system according to claim 1, characterized in that: The motor reduction mechanism is a coaxial motor gear reducer.

5. The intelligent surveying and mapping UAV system according to claim 1, characterized in that: The time control circuit includes an electrically connected time control switch and a relay, the positive power input terminal of the time control switch is connected to the positive control power input terminal of the relay, the negative power input terminal of the time control switch is connected to the negative control power input terminal of the relay, and the power output terminal of the time control switch is connected to both ends of the power input of the relay; the photoelectric switch is a PNP type reflective photoelectric switch.

6. The intelligent surveying and mapping UAV system according to claim 1, characterized in that: The wireless receiving circuit B includes an electrically connected wireless receiving circuit module, a resistor, an NPN transistor, and a relay. The positive power input end of the wireless receiving circuit module is connected to the positive power input end of the relay and the control power input end. The second output end of the wireless receiving circuit module is connected to one end of the resistor, and the other end of the resistor is connected to the base of the NPN transistor. The collector of the NPN transistor is connected to the negative power input end of the relay, and the negative power input end of the wireless receiving circuit module is connected to the emitter of the NPN transistor.

7. The intelligent surveying and mapping UAV system according to claim 1, characterized in that: The wireless transmitting circuit includes an electrically connected wireless transmitting circuit module, a resistor, and an NPN transistor, one end of the resistor is connected to the base of the NPN transistor, the collector of the NPN transistor is connected to the negative power input end of the wireless transmitting circuit module, and two contacts under one of the wireless signal transmitting buttons of the wireless transmitting circuit module are electrically connected together.

8. The intelligent surveying and mapping UAV system according to claim 7, characterized in that: After the photoelectric switch is energized, the infrared beam it emits is directed toward the ground. When the distance between the ground and obstacles is large, the photoelectric switch does not output power to the wireless transmitting circuit module, and the wireless transmitting circuit module does not send wireless signals. When the UAV body lands to a point where the distance between the ground and obstacles is small, the photoelectric switch outputs power to the wireless transmitting circuit module, and the wireless transmitting circuit module emits a wireless closing signal. After the wireless receiving circuit module receives the wireless closing signal, the buzzer is energized to emit a prompt sound to alert the flight control personnel.

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