Wheel stopper drone and vehicle system with the same

Abstract

To eliminate the need for a driver to manually install and release a wheel stopper.SOLUTION: A wheel stopper drone 1 includes: a wheel stopper portion 2 having a contact surface 2a configured to come into contact with a wheel 135 of a vehicle 13 to stop rolling of the wheel 135; a plurality of rotary wings 4 configured to fly; a battery 7 configured to drive the rotary wings 4; a flight control unit 6 configured to perform control for flying along flight paths R1 to R4 to an installation position 13b where rolling of wheels 135, 138 is stopped; and obstacle sensors 91, 92 configured to detect obstacles 100, 101 in the flight paths R1 to R4 to the installation position 13b. When the obstacle sensors 91, 92 detect the obstacles 100, 101, the flight control unit 6 changes the flight paths R1 to R4.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a wheel stop drone for preventing a vehicle such as a forklift or cargo truck from moving away unattended while the vehicle is parked, and a vehicle system equipped with the same. [Background technology]

[0002] Vehicles such as forklifts and cargo trucks have a large vehicle body weight, so when parking the vehicle, the driver activates the parking brake (side brake) to stop the vehicle. However, especially when the vehicle is parked on a slope, if the driver forgets to activate the parking brake or does not activate the parking brake reliably, the vehicle may move away without a person in it. Therefore, in addition to the parking brake, the driver installs wheel chocks (tire stoppers) on the wheels of the vehicle to prevent the vehicle from moving away without a person in it.

[0003] Since the wheel chock is manually placed on the wheels of the vehicle by the driver, there is a risk that the vehicle may start moving while the driver is preparing the wheel chock when parked on a slope. In particular, if the vehicle starts moving while the driver is placing the wheel chock on the wheels, there is a risk that the driver's hand or other part may get caught in the wheel.

[0004] On the other hand, because the driver must manually place the wheel chocks on the wheels of the vehicle, the driver may forget to place the wheel chocks. Also, when the driver drives the vehicle, the driver must manually move the wheel chocks away from the wheels to release them so that the vehicle can move, but the driver may forget to release the wheel chocks.

[0005] In particular, if the driver forgets to install wheel chocks when parking a vehicle on a slope, the vehicle may move away. Also, if the driver forgets to release the wheel chocks when moving the vehicle, the vehicle may run over the wheel chocks and fall over.

[0006] For this reason, for example, Patent Documents 1 and 2 disclose devices configured to notify the driver of the installation and release of wheel chocks. However, with conventional wheel chocks, the driver must manually install and release the wheel chocks on the vehicle wheels, which may result in the driver's hands or hands becoming caught in the wheels. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 7-277159 [Patent Document 2] JP 2005-199731 A Summary of the Invention [Problem to be solved by the invention]

[0008] Therefore, the problem that the present invention aims to solve is to provide a wheel stop drone and a vehicle system equipped with the same that do not require the driver to manually install and release wheel stoppers. [Means for solving the problem]

[0009] The wheel stop drone according to the present invention is a wheel stopper portion having a contact surface for contacting a wheel of a vehicle to stop the wheel from rolling; Multiple rotors for flight; A battery for driving the rotor; A memory unit that stores a flight path to a setting position where the wheels stop rolling; A flight control unit for controlling the aircraft to fly along a flight path; an obstacle sensor for detecting an obstacle on a flight path to the installation position; The flight control unit changes the flight path when the obstacle sensor detects an obstacle.

[0010] Preferably, the flight control unit changes a flight route from a high priority route to a low priority route when an obstacle is detected on a flight route for which a priority has been set.

[0011] In addition, it is preferable that the obstacle sensor includes a first obstacle sensor for detecting an obstacle on the flight path, and a second obstacle sensor for detecting an obstacle at the installation position.

[0012] In addition, it is preferable that each rotor is provided on both sides of the wheel stop drone and on the rear side of the abutment surface.

[0013] Preferably, the memory unit stores the route flown by the wheel stopper drone as a flight route.

[0014] The memory unit may also be configured to store a flight path between the waiting position where the wheel stopper drone waits and the set position.

[0015] Preferably, the vehicle includes a detection unit for detecting start and stop of a drive unit of the vehicle, and a wireless communication unit for transmitting a detection signal from the detection unit, The wheel stop drone is equipped with a wireless communication unit for receiving detection signals and flies based on the detection signals.

[0016] Preferably, the vehicle includes a detection unit for detecting operation and release of a parking brake unit of the vehicle, and a wireless communication unit for transmitting a detection signal from the detection unit, The wheel stop drone is equipped with a wireless communication unit for receiving detection signals and flies based on the detection signals.

[0017] In addition, in the vehicle system according to the present invention, The vehicle is The wheel-stop drone, a waiting position for waiting the wheel stop drone; A power supply unit is provided at the waiting position to supply power to the battery of the wheel-stop drone. Effect of the Invention

[0018] The wheel stopper drone of the present invention is configured to fly using multiple rotors and set and release the wheel stopper on the vehicle wheels, so the driver does not need to set and release the wheel stopper manually. Therefore, there is no risk of the driver's hands or hands getting caught in the wheel of the vehicle.

[0019] In addition, the wheel stopper drone of the present invention is configured to fly along a flight path to an installation position where the vehicle wheels will stop rolling, and to change the flight path when an obstacle is detected on the flight path, so that the wheel stopper drone can fly to the wheel installation position without colliding with an obstacle. [Brief description of the drawings]

[0020] [Figure 1] 1A shows a wheel-stop drone, and FIG. 1B is a plan view. [Diagram 2] FIG. 1 is a block diagram showing the configuration of a wheel stop drone, a vehicle, and a remote controller. [Diagram 3] FIG. 4 is a block diagram for explaining a flight route stored in a memory unit. [Figure 4] A side view to explain the installation position of the wheel stopper drone. [Diagram 5] FIG. 4 is a plan view for explaining a change in flight path caused by a first obstacle sensor. [Figure 6] FIG. 11 is a plan view for explaining a change in flight path caused by a second obstacle sensor. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, an embodiment of a wheel stop drone and a vehicle system including the same according to the present invention will be described with reference to the drawings. The X direction, the Y direction, and the Z direction are perpendicular to each other.

[0022] As shown in Fig. 1, the wheel stop drone 1 includes a wheel stopper unit 2 and a main body unit 3. The wheel stopper unit 2 and the main body unit 3 have a predetermined width in the X direction (left-right direction), and are connected to each other in the Y direction (front-rear direction). In this embodiment, the wheel stopper unit 2 and the main body unit 3 are configured to be connectable and separable so that maintenance and inspection can be easily performed. The wheel stopper unit 2 and the main body unit 3 may be integrated.

[0023] The wheel stopper portion 2 has an abutment surface 2a on the front side in the Y direction. The wheel stopper portion 2 is connected to the main body portion 3 on the rear side in the Y direction. The abutment surface 2a is configured to be in contact with the wheels 135, 138 of the vehicle. The abutment surface 2a is inclined with respect to the Z direction (vertical direction) and has a curved shape like an arc. This allows the abutment surface 2a to abut tightly against the wheel of the vehicle.

[0024] The wheel stop drone 1 is equipped with multiple rotors 4. In this embodiment, the wheel stop drone 1 has four rotors 4 provided on the main body 3. Two rotors 4 are provided on the side of the main body 3 in the X direction (left-right direction). The two rotors 4 provided on the side of the main body 3 are arranged side by side in the Y direction (front-back direction).

[0025] The number of rotors 4 is not limited to four, and is determined according to the weight, stability, flight time, flight environment, etc. of the wheel-stop drone 1. In general, a larger number of rotors 4 enables stable flight, while a smaller number of rotors 4 enables lighter and more compact drones to fly at higher speeds.

[0026] The rotor 4 does not have to be provided on both sides of the main body 3, and may be provided on the upper surface 3a of the main body 3, for example. When the rotor 4 is arranged so as not to protrude from the upper surface 3a of the main body 3 as in this embodiment, the wheel stop drone 1 is installed in the space even when the vertical distance of the space between the underside of the vehicle body and the passage surface of the vehicle is small. However, when the rotor 4 is arranged on the upper surface 3a of the main body 3 or arranged so as to protrude from the upper surface 3a, the wheel stop drone 1 may not be installed in the space when the vertical distance of the space between the underside of the vehicle body and the passage surface of the vehicle is small. Therefore, by arranging the rotor 4 so as not to protrude from the upper surface 3a of the main body 3, the wheel stop drone 1 can be installed for various vehicles.

[0027] The wheel stop drone 1 is equipped with a first obstacle sensor 91 for detecting an obstacle 100 (FIG. 5) ahead during flight. In this embodiment, the first obstacle sensor 91 is provided on the contact surface 2a of the wheel stopper part 2 so as to be able to detect the front of the wheel stopper drone 1. The first obstacle sensor 91 is also configured with, for example, a laser sensor, an ultrasonic sensor, a stereo camera, or the like so as to be able to detect an obstacle 100 such as a wall or a curb. This allows the wheel stopper drone 1 to detect an obstacle 100 on the flight path during flight based on a signal or image from the first obstacle sensor 91, as will be described later.

[0028] The wheel stop drone 1 is equipped with a second obstacle sensor 92 for detecting an obstacle 101 (FIG. 6) below during flight. In this embodiment, the second obstacle sensor 92 is provided on both sides of the wheel stop 2 in the X direction so that it can detect the area below the wheel stop drone 1. The second obstacle sensor 92 is also configured with, for example, a laser sensor, an ultrasonic sensor, a stereo camera, or the like so that it can detect an obstacle 101 such as a pebble. This allows the wheel stop drone 1 to detect the obstacle 101 at the installation position 13b during flight based on a signal or image from the second obstacle sensor 92, as described below.

[0029] 2, the wheel-stop drone 1 is equipped with multiple motors 5 connected to each rotor 4, and the rotor 4 is rotated by driving the motors 5. In general, the motor 5 is configured as a brushless motor, with a permanent magnet provided on the rotor side and a three-phase winding provided on the stator side.

[0030] The wheel stop drone 1 is equipped with a flight control unit 6 for controlling the drive of each motor 5. The flight control unit 6 is equipped with a calculation unit 60 and a memory unit 61, and is configured so that the calculation unit 60 performs calculations based on signals from various sensors etc. provided in the wheel stop drone 1 and commands etc. from the memory unit 61, and controls the flight in a comprehensive manner. The wheel stop drone 1 is equipped with main sensors such as a gyro sensor that measures the behavior and inclination of the aircraft, a barometric pressure sensor that detects the altitude, and a GPS that detects the position information of the aircraft.

[0031] The flight control unit 6 is connected to a first obstacle sensor 91 and a second obstacle sensor 92, and is configured to control the flight of the wheel stopper drone 1 based on detection signals from each obstacle sensor 91, 92.

[0032] As shown in FIG. 3, the storage unit 61 stores first to fourth flight routes R1 to R4 consisting of routes along which the wheel stop drone 1 flies. Priority is set for the flight routes R1 to R4 for each wheel 135, 138. For example, the first flight route R1, which has the highest priority, is a route to the installation position 13b of the left or right front wheel 135, which cannot turn, and the fourth flight route R4, which has the lowest priority, is a route to the installation position 13b of the left or right rear wheel 138, which can turn. In this embodiment, the front wheel 135 does not turn even if the handle is operated and always faces forward and backward, so that the wheel stopper unit 2 of the wheel stop drone 1 accurately abuts against the front wheel 135 at the installation position 13b of the front wheel 135, and the vehicle 13 can be stopped reliably.

[0033] A vehicle 13 such as a forklift or a cargo truck includes a drive unit 130 including a motor, an engine, etc. mounted on the vehicle body, and a parking brake unit 131 including a side brake etc. provided in the driver's seat. The vehicle 13 further includes a detection unit 132 for detecting the start and stop of the drive unit 130 or the operation and release of the parking brake unit 131, and a wireless communication unit 133 for transmitting a signal from the detection unit 132 to the wireless communication unit 8 of the wheel stop drone 1.

[0034] Next, the operation of the wheel stop drone 1 will be described. 4 to 6, the vehicle 13 includes a vehicle body 134 on which a driver's seat 136, a drive unit 130, a battery 137, and the like are mounted, and front wheels 135 and rear wheels 138 are provided on the lower part of the vehicle body 134. In the vehicle 13, for example, a position behind the driver's seat 136 is a standby position 13a where the wheel stopper drone 1 waits.

[0035] The vehicle 13 is equipped with a power supply unit 70 at the standby position 13a for supplying power to the battery 7 of the wheel stop drone 1. The power supply unit 70 is connected to a battery 137 mounted on the vehicle 13 and is configured as a contact or non-contact power supply device, and is configured so that power is supplied from the battery 137 of the vehicle 13 to the battery 7 of the wheel stop drone 1 through the power supply unit 70 while the wheel stop drone 1 is waiting at the standby position 13a.

[0036] When an operator such as a driver of the vehicle 13 parks the vehicle 13, the wheel stop drone 1 is activated, and the wheel stop drone 1 flies along the flight paths R1 to R4 from the waiting position 13a to the installation position 13b that prevents the wheels 135, 138 of the vehicle from rolling. Then, the wheel stopper part 2 of the wheel stop drone 1 installed at the installation position 13b is disposed so as to face the wheels 135, 138 of the vehicle. As a result, the wheel stopper 2 by the wheel stop drone 1 is installed on the wheels 135, 138, and the wheels 135, 138 are prevented from rolling. The wheels 135, 138 on which the wheel stop drone 1 is installed may be one of the four wheels provided on the vehicle 13.

[0037] 5, when the first obstacle sensor 91 detects an obstacle 100 such as a wall or a curb on the first flight route R1 while flying along the first flight route R1 with the highest priority, the wheel stop drone 1 changes to fly on the second flight route R2 with the next highest priority, and when the obstacle 100 is detected during flight, the wheel stop drone 1 changes to fly on the flight routes R3 and R4 with the next highest priority in that order. This prevents the wheel stop drone 1 from colliding with the obstacle 100 while flying.

[0038] 6, when the wheel stop drone 1 flies along the first flight route R1 with the highest priority, if the second obstacle sensor 92 detects an obstacle 101 such as a pebble at the installation position 13b of the first flight route R1, the wheel stop drone 1 changes to fly along the second flight route R2 with the next highest priority, and if the obstacle 101 is detected again, the wheel stop drone 1 changes to fly along the flight routes R3 and R4 with the next highest priority in that order. This prevents the wheel stop drone 1 from being installed on the obstacle 101 at the installation position 13b, so that the vehicle 13 can be stopped reliably.

[0039] When an operator such as a driver of the vehicle 13 moves the vehicle 13, the operator activates the wheel stopper drone 1, and the wheel stopper drone 1 flies along the flight routes R1 to R4 so as to move from the installation position 13b to the waiting position 13a. This releases the wheel stopper applied by the wheel stopper drone 1.

[0040] In this embodiment, two wheel stop drones 1 are configured to wait at the waiting position 13a of each vehicle 13, with one wheel stop drone 1 installed in front of the wheels 135, 138 and the other wheel stop drone 1 installed behind the wheels 135, 138. This allows the wheel stop drone 1 to prevent the vehicle 13 from moving forward or backward.

[0041] In this embodiment, an operator operates the wheel stop drone 1 using a remote controller 10 (FIG. 2) having an operation unit 11 and a wireless communication unit 12, and while the wheel stop drone 1 flies between the standby position 13a and the installation position 13b, the memory unit 61 of the wheel stop drone 1 stores the drive of each motor 5. As a result, the wheel stop drone 1 is configured to store the flight routes R1 to R4 between the standby position 13a and the installation position 13b.

[0042] In addition, when the wheel stop drone 1 receives a detection signal from the detection unit 132, it flies between the standby position 13a and the installation position 13b based on the flight routes R1 to R4 stored in the memory unit 61. As a result, when the detection unit 132 detects the stop of the drive unit 130 or the operation of the parking brake unit 131, the wheel stop drone 1 flies from the standby position 13a to the installation position 13b. In addition, when the detection unit 132 detects the start of the drive unit 130 or the release of the parking brake unit 131, the wheel stop drone 1 flies from the installation position 13b to the standby position 13a.

[0043] Although the preferred embodiments of the present invention have been described above, the configuration of the present invention is not limited to these embodiments. For example, the following modifications are possible.

[0044] A plurality of flight paths R with priorities set for each wheel 135, 138 with priorities set may be set. For example, four flight paths R may be set for the left front wheel 135 with the first priority, four flight paths R may be set for the right front wheel 135 with the second priority, four flight paths R may be set for the left rear wheel 138 with the third priority, and four flight paths R may be set for the right rear wheel 138 with the fourth priority. In this case, the flight control unit 6 changes the flight path R1 of the left front wheel 135 to the second flight path R2 when the obstacle sensors 91, 92 detect the obstacles 100, 101 during flight on the first flight path R1 of the left front wheel 135 with the first priority, and changes the flight path R1 of the right front wheel 135 to the first flight path R1 when the obstacle sensors 91, 92 still detect the obstacles 100, 101 even after changing the flight path to the fourth flight path R4.

[0045] The flight paths R1 to R4 of the wheel stopper drone 1 may be simulated by a computer based on the relative three-dimensional coordinates of the waiting position 13a and the installation position 13b with respect to the vehicle 13, and the memory unit 61 may be configured to store the flight paths.

[0046] The vehicle 13 may be provided with a button near the driver's seat 136 for starting the flight of the wheel stop drone 1. As a result, the driver may press the button when parking the vehicle 13 to fly the wheel stop drone 1 from the standby position 13a to the installation position 13b, and may press the button when moving the vehicle 13 to fly the wheel stop drone 1 from the installation position 13b to the standby position 13a.

[0047] The wheel stopper drone 1 may have the wheel stopper portion 2 and the main body portion 3 integrally formed.

[0048] The first obstacle sensor 91 is required to be able to detect what is in front of the wheel stop drone 1, and the second obstacle sensor 92 is required to be able to detect what is below the wheel stop drone 1, and the installation location and configuration of the wheel stop drone 1 are not limited.

[0049] The effects of the present invention will now be described.

[0050] The wheel stop drone 1 of the present invention comprises a wheel stopper portion 2 having an abutment surface 2a for abutting against the wheels 135, 138 of a vehicle 13 to stop the wheels 135, 138 from rolling, a plurality of rotors 4 for flight, and a battery 7 for powering the rotors 4.

[0051] This eliminates the need for the driver to manually install and release the wheel chock, and therefore eliminates the risk of the driver's hands or other parts being caught between the vehicle wheels while installing and releasing the wheel chock.

[0052] Furthermore, the wheel stop drone 1 is equipped with a flight control unit 6 for controlling the drone to fly along a flight path R1-R4 to the installation position 13b where the wheels 135, 138 stop rolling, and obstacle sensors 91, 92 for detecting obstacles 100, 101 on the flight path R1-R4 to the installation position 13b, and the flight control unit 6 changes the flight path R1-R4 when the obstacle sensors 91, 92 detect the obstacles 100, 101.

[0053] This prevents the wheel stop drone 1 from colliding with the obstacle 100 during flight, and further prevents the wheel stop drone 1 from being installed on the obstacle 101 at the installation position 13b, thereby enabling the vehicle 13 to be stopped reliably.

[0054] In addition, the flight control unit 6 stores flight routes R1 to R4 with priorities set for each wheel 135, 138, and when an obstacle 100, 101 is detected on the flight route R1 to R4, changes the flight route R1 to R4 with the higher priority to the flight route R1 to R4 with the lower priority.

[0055] As a result, the priority of the flight paths R1 to R4 can be set in the order in which the wheel stop drone 1 can reliably stop the wheels 135, 138. For example, the flight paths R1 to R4 to the installation position 13b of the non-rotatable wheels 135, 138 can be set to have a high priority, and the flight paths R1 to R4 to the installation position 13b of the wheels 135, 138 that rotate by steering can be set to have a low priority. In this case, the non-rotatable wheels 135, 138 always face the front-rear direction of the vehicle 13, so the wheel stop drone 1 is not installed away from the wheels 135, 138, and the wheels 135, 138 can be reliably stopped.

[0056] The obstacle sensors 91, 92 include a first obstacle sensor 91 for detecting an obstacle 100 on the flight routes R1 to R4, and a second obstacle sensor 92 for detecting an obstacle 101 at the installation position 13b.

[0057] This allows the first obstacle sensor 91 to be configured suitable for detecting obstacles 100 on the flight paths R1 to R4, and the second obstacle sensor 92 to be configured suitable for detecting obstacles 101 at the installation position 13b.

[0058] In addition, each rotor 4 is provided on both sides of the wheel stop drone 1 and on the rear side of the contact surface 2a.

[0059] This reduces the distance that the rotor 4 protrudes above the upper surface of the wheel stop drone 1, allowing the wheel stop drone 1 to be installed in the space between the underside of the vehicle body 134 and the aisle even when the vertical distance of the space is small.

[0060] In addition, the wheel stopper drone 1 is equipped with a memory unit 61 for storing the flight path flown by the wheel stopper drone 1, and is configured to fly along the flight path stored in the memory unit 61.

[0061] This eliminates the need for an operator such as a driver to operate the wheel stop drone 1 to fly between the waiting position 13a where the wheel stop drone 1 waits and the installation position 13b where the vehicle wheels 135 are prevented from rolling, and allows the wheel stop drone 1 to fly automatically along the flight path. Also, although the waiting position 13a and the installation position 13b differ for each vehicle 13, by storing the flight path that the wheel stop drone 1 actually flew, it is possible to store a flight path that corresponds to each vehicle 13.

[0062] In addition, the vehicle 13 is equipped with a detection unit 132 for detecting the start and stop of the drive unit 130 of the vehicle 13, and a wireless communication unit 133 for transmitting a detection signal from the detection unit 132, and the wheel stop drone 1 is equipped with a wireless communication unit 8 for receiving the detection signal and flies based on the detection signal.

[0063] In addition, the vehicle 13 is equipped with a detection unit 132 for detecting the operation and release of the parking brake unit 131 of the vehicle 13, and a wireless communication unit 133 for transmitting a detection signal from the detection unit 132, and the wheel stopper drone 1 is equipped with a wireless communication unit 8 for receiving the detection signal and flies based on the detection signal.

[0064] Thereby, when the detection unit 132 detects the stop of the driving unit 130 or the operation of the parking brake unit 131, the wheel stop drone 1 flies from the standby position 13a to the installation position 13b. Also, when the detection unit 132 detects the start of the driving unit 130 or the release of the parking brake unit 131, the wheel stop drone 1 flies from the installation position 13b to the standby position 13a. As a result, the operator such as the driver will not forget to fly the wheel stop drone 1, so that the wheel stopper can be reliably installed and released for the wheel 135.

[0065] The vehicle 13 also has a wheel stop drone 1 and a waiting position 13a for waiting for the wheel stop drone 1, and a power supply unit 70 at the waiting position 13a for supplying power to the battery 7 of the wheel stop drone 1.

[0066] This allows power to be supplied from the battery 137 of the vehicle 13 to the battery 7 of the wheel stop drone 1 via the power supply unit 70 while the wheel stop drone 1 is waiting at the waiting position 13a. [Explanation of symbols]

[0067] 1. Wheel Stop Drone 2 Wheel stopper 2a Contact surface 4 Rotor 7 Battery 8 Wireless Communication Section 13 Vehicles 61 Storage section 70 Power supply unit 13a Standby position 13b Installation position 130 Drive unit 132 Detection unit 133 Wireless Communication Department 131 Parking brake section 135 Wheels

Claims

1. a wheel stopper portion having a contact surface for contacting a wheel of a vehicle to stop the wheel from rolling; Multiple rotors for flight; A battery for driving the rotor; A memory unit that stores a flight path to an installation position where the wheel stops rolling; A flight control unit for controlling flight along the flight path; an obstacle sensor for detecting an obstacle on the flight path to the installation position; The flight control unit changes the flight path when the obstacle sensor detects the obstacle. A wheel-stop drone that features:

2. The flight control unit changes the flight path from the flight path with a high priority to the flight path with a low priority when the obstacle is detected on the flight path with a priority set. The wheel stopper drone according to claim 1 .

3. The obstacle sensor includes a first obstacle sensor for detecting the obstacle on the flight path and a second obstacle sensor for detecting the obstacle at the installation position. The wheel stopper drone according to claim 1 .

4. The rotors are provided on both sides of the wheel stop drone and on the rear side of the abutment surface. The wheel stopper drone according to claim 1 .

5. The memory unit stores the route flown by the wheel stopper drone as the flight route. The wheel stopper drone according to claim 1 .

6. The memory unit is configured to store, as the flight path, a path between a waiting position where the wheel stop drone waits and the set position. The wheel stopper drone according to claim 5.

7. The vehicle includes a detection unit for detecting start and stop of a drive unit of the vehicle, and a wireless communication unit for transmitting a detection signal from the detection unit, The wheel stop drone is equipped with a wireless communication unit for receiving the detection signal and flies based on the detection signal. The wheel stopper drone according to claim 1 .

8. The vehicle includes a detection unit for detecting operation and release of a parking brake unit of the vehicle, and a wireless communication unit for transmitting a detection signal from the detection unit, The wheel stop drone is equipped with a wireless communication unit for receiving the detection signal and flies based on the detection signal. The wheel stopper drone according to claim 1 .

9. The vehicle is A wheel stop drone according to claim 1; a waiting position for waiting the wheel stop drone; A power supply unit for supplying power to the battery of the wheel stop drone at the standby position is provided. A vehicle system comprising:

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