Unmanned evidence obtaining system for roadside berths and evidence obtaining method of unmanned evidence obtaining system

Abstract

The unmanned evidence obtaining system comprises an unmanned vehicle and a plurality of geomagnetic sensors, the geomagnetic sensors are in communication connection with the unmanned vehicle, and a plurality of charging piles are further arranged in the area of the roadside berth; a plurality of unmanned aerial vehicles are arranged in the unmanned vehicle, each unmanned aerial vehicle is provided with a second camera shooting unit, a first power storage unit and a second power storage unit, the first power storage unit is used for supplying power to the unmanned aerial vehicles, and when the unmanned aerial vehicles fly back into the unmanned vehicle, the second power storage unit charges the unmanned vehicle; the system further comprises a background server, and the background server is in communication connection with the unmanned vehicle and the unmanned aerial vehicle at the same time. When the vehicle is parked in the parking space in the secondary area, the parking space is monitored through the charged unmanned aerial vehicle, evidence obtaining can be conducted on the vehicle driving away in time, and the endurance of the unmanned aerial vehicle is guaranteed; and when all the vehicles parked at the parking spaces in the secondary area are driven away, the unmanned aerial vehicle can be recycled, and the unmanned aerial vehicle is charged through the second power storage unit on the unmanned aerial vehicle, so that the cruising ability of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] The present invention belongs to the field of intelligent parking, and in particular relates to an unmanned evidence collection system for roadside parking spaces and an evidence collection method thereof. Background Art

[0002] In the existing roadside parking evidence collection methods, most of them are monitored by high-position cameras, but the camera's field of view is limited. It takes a large number of cameras to cover the parking spaces on the entire road, which is costly. In order to reduce costs, a method of collecting evidence through unmanned vehicle cruising has emerged. When the geomagnetic induction on the roadside parking space detects that a vehicle is parked, a signal is sent to the unmanned vehicle, which drives to the corresponding parking space to take photos for evidence collection; when the geomagnetic induction detects that the vehicle in the parking space has left, the parking time is recorded. Although the unmanned vehicle cruising evidence collection method reduces costs, it cannot form a complete image evidence chain. When a dispute occurs, there is a risk of insufficient evidence.

[0003] In the prior art, for example, the patent document with the announcement number CN214846825U discloses a parking fee collection system based on the OBU vehicle-mounted unit. When the geomagnetic sensor on the parking space recognizes that a vehicle is parked, the evidence collection device is notified to collect vehicle information. When the vehicle leaves, the departure of the vehicle is only sensed by the geomagnetic sensor, and a complete chain of image evidence cannot be formed. When a dispute over the length of parking time arises, strong image evidence cannot be produced. Summary of the invention

[0004] In response to the problems in the prior art, the present invention proposes an unmanned evidence collection system and method for roadside parking spaces. On the one hand, when there is a vehicle parked in the parking space in the secondary area, the parking space is monitored by a drone that is being charged. When the vehicle leaves, evidence can be collected in time while the endurance of the drone is guaranteed. On the other hand, when all the vehicles parked in the parking spaces in the secondary area have left, the drone can be recovered and the unmanned vehicle can be charged by the second power storage unit on the drone to improve the endurance of the unmanned vehicle, prevent the unmanned vehicle from delaying evidence collection due to charging, and improve the timeliness of evidence collection.

[0005] The present invention is implemented as follows: an unmanned evidence collection system for roadside parking spaces, including an unmanned vehicle with a first camera unit, the unmanned vehicle cruising in the area of ​​the roadside parking spaces, and also including a geomagnetic sensor arranged in each parking space, each geomagnetic sensor being numbered in sequence, the geomagnetic sensor being communicatively connected with the unmanned vehicle, and when the geomagnetic sensor senses that a vehicle is parked in the parking space, a evidence collection signal is sent to the unmanned vehicle, the unmanned vehicle drives to the parking space with the corresponding number to collect evidence, and obtains image evidence of the vehicle entering the parking space.

[0006] There are also multiple charging piles in the roadside parking area, which are evenly distributed along the road and divide the parking spaces on the road into multiple secondary areas; there are also multiple drones in the unmanned vehicle that are connected to the unmanned vehicle and can enter and exit freely. The drone is equipped with a second camera unit. After the unmanned vehicle collects evidence of the vehicle in the parking space, the drone flies from the unmanned vehicle to the charging pile corresponding to the secondary area where the parking space is located, and monitors all the parking spaces in the secondary area while charging. When there are no vehicles parked in the parking spaces in the secondary area, the drone flies back to the unmanned vehicle. Through the monitoring of the drone, when the vehicle in the parking space leaves, it can collect evidence in time and obtain image evidence of the vehicle leaving, and then form a complete image evidence chain with the image evidence of the vehicle entering the parking space, thereby improving the credibility of the evidence. When the drone is monitoring and charging, it can extend the drone's flight time, prevent the drone from interrupting monitoring due to exhaustion of power, and improve the stability and reliability of the entire system.

[0007] The drone includes a first power storage unit and a second power storage unit. When the drone flies to the charging pile, the charging pile charges the first power storage unit and the second power storage unit at the same time. The first power storage unit is used to power the drone. When the drone flies back to the unmanned vehicle, the second power storage unit charges the unmanned vehicle. The second power storage unit also enables the drone to function as a mobile power source. The recovered drone can convert the power in the second power storage unit into the power of the unmanned vehicle, thereby improving the endurance of the unmanned vehicle, preventing the unmanned vehicle from delaying evidence collection due to charging, and improving the timeliness of evidence collection.

[0008] It also includes a background server, which is connected to the communication with the unmanned vehicle and the drone at the same time. After the unmanned vehicle and the drone collect vehicle information, the collected images are sent to the background server. The background server generates a toll bill based on the collected images, and sends the collected images and the toll bill to the owner's smart terminal.

[0009] Preferably, the charging pile is located in the middle of the secondary area, the drone is provided with a rotating platform that can rotate 360°, and the second camera unit is arranged on the rotating platform. The rotating platform rotates back and forth, so that the second camera unit can simultaneously monitor the berths on both sides of the charging pile. While ensuring the image quality, the monitoring range of a single drone is significantly improved, thereby reducing the number of drones required to monitor the entire roadside parking area, and reducing the cost of the evidence collection system.

[0010] Preferably, the unmanned vehicle is also provided with a map software, and the map software is used to confirm the relative position of each parking space and the unmanned vehicle. When a vehicle enters the parking space behind the unmanned vehicle and evidence needs to be collected, the parking space behind the unmanned vehicle is collected by the unmanned vehicle. When a vehicle enters the parking space behind the unmanned vehicle and evidence needs to be collected, the unmanned vehicle cannot reverse, and when collecting evidence by the unmanned vehicle, the unmanned vehicle needs to take a detour to reach the parking space for evidence collection, resulting in a delay in evidence collection; while when collecting evidence by the unmanned vehicle, the unmanned vehicle can directly reach the parking space without taking a detour, thereby preventing delays in evidence collection, improving the timeliness of evidence collection, and further improving the reliability of image evidence.

[0011] Specifically, the number of the drones is greater than the number of the charging piles. On the one hand, this can ensure that when the drones on the charging piles are monitoring the secondary area, there are additional drones to collect evidence from the parking spaces behind the unmanned vehicle, thereby preventing the unmanned vehicle from having to take a detour to collect evidence from the parking spaces behind due to insufficient number of drones, thereby further improving the timeliness of evidence collection. On the other hand, when vehicles enter multiple parking spaces at the same time, additional drones can be quickly dispatched to multiple parking spaces to collect evidence at the same time, thereby preventing the drones from having to collect evidence from multiple parking spaces one by one, thereby improving the flexibility of drone evidence collection.

[0012] Specifically, the drone is also provided with a power detector, the unmanned vehicle is provided with a numerical comparator, and the power detector is in communication with the numerical comparator; when the power of the drone collecting evidence at the berth behind the unmanned vehicle is lower than the set value, the numerical comparator compares the power of the drone on the charging pile, so that the drone with a power lower than the set value is swapped with the drone with the highest power. By setting a power detector in the drone, the remaining power of the drone can be monitored in real time, preventing the drone from losing power due to exhaustion during the evidence collection process, resulting in evidence collection failure or even damage, thereby improving the reliability and safety of the drone. In addition, by swapping the drone with a power lower than the set value with the drone with the highest power, the existing resources can be utilized to the maximum extent, ensuring that the drone with sufficient power can continue to collect evidence, while the drone with insufficient power has the opportunity to charge, thereby optimizing resource allocation.

[0013] Specifically, at least two charging positions are provided on the charging pile. When a drone with a battery level lower than a set value is swapped with a drone with the highest battery level, the drone with a low battery level first lands on the charging pile to charge while monitoring the secondary area corresponding to the charging pile. Then the drone with a high battery level leaves the charging pile, ensuring that the monitoring task will not be interrupted due to the replacement of the drone during the entire drone swap process, avoiding monitoring blind spots caused by drone replacement, preventing vehicles from leaving during the drone swap process, resulting in omissions in monitoring, and ensuring the integrity and continuity of monitoring.

[0014] Preferably, the drone is provided with a first wireless charging coil and a second wireless charging coil, the first wireless charging coil is electrically connected to the first power storage unit and the second power storage unit at the same time, and the second wireless charging coil is electrically connected to the second power storage unit; the charging pile is provided with a third wireless charging coil compatible with the first wireless charging coil, and when the drone lands on the charging pile, the third wireless charging coil is induced by the first wireless charging coil; the unmanned vehicle is provided with a fourth wireless charging coil compatible with the second wireless charging coil, and after the drone flies back to the unmanned vehicle, the second wireless charging coil is induced by the fourth wireless charging coil. Wireless charging can improve the safety of drone charging on rainy days, prevent the charging interface from short-circuiting or leaking due to rainwater penetration, and improve the safety of drone charging.

[0015] Preferably, the drone is provided with a bracket made of magnetic material, and the charging pile is provided with an electromagnet matching the bracket. When the drone lands on the charging pile, the electromagnet is magnetically connected to the bracket. On the one hand, the magnetic connection is adaptive, and the electromagnet can quickly lock the drone on the charging pile after the drone lands on the charging pile, thereby improving the convenience of fixing the drone; on the other hand, compared with the traditional physical buckle or mechanical locking structure, the electromagnet has higher stability and resistance to external interference, further improving the safety of the drone when charging.

[0016] A method for collecting evidence applied to the above-mentioned unmanned evidence collection system comprises the following steps:

[0017] S1: The geomagnetic sensor detects that a vehicle has entered the parking space and sends a forensic signal to the unmanned vehicle;

[0018] S2-1: After receiving the evidence collection signal, the unmanned vehicle determines the relative position between the evidence collection parking space and the unmanned vehicle;

[0019] S2-2: When the evidence collection parking space is located in front of the unmanned vehicle, the unmanned vehicle goes to the evidence collection parking space to collect evidence;

[0020] S2-3: When the evidence collection parking space is located behind the unmanned vehicle, the drone goes to the evidence collection parking space to collect evidence;

[0021] S3-1: When the unmanned vehicle or drone has completed the evidence collection, the evidence collection information is sent to the backend server, and it is determined whether there is any drone monitoring in the secondary area where the evidence collection berth is located;

[0022] S3-2: When there is no drone monitoring the secondary area where the evidence collection berth is located, the unmanned vehicle sends a drone to land on the charging pile in the secondary area, or the evidence collection drone directly lands on the charging pile in the secondary area and monitors all berths in the secondary area;

[0023] S3-3: When there is a drone monitoring the secondary area where the evidence collection parking lot is located, the unmanned vehicle leaves the evidence collection parking lot, or the evidence collection drone returns to the unmanned vehicle;

[0024] S4: When the geomagnetic sensor detects that a vehicle has left the parking space, it sends a signal to the unmanned vehicle, which then sends a signal to the drone monitoring the parking space. After receiving the signal, the drone collects evidence of the vehicle leaving the parking space.

[0025] S5: The drone sends the evidence information of the vehicle leaving to the backend server, and the backend server integrates the evidence information of the vehicle entering and leaving the parking space to form a complete image evidence chain.

[0026] Specifically, step S2-3 specifically includes the following steps:

[0027] S2-3-1: The drone goes to the evidence collection berth to collect evidence;

[0028] S2-3-2: The power detector on the drone detects whether the power of the drone is lower than the set value;

[0029] S2-3-3: When the power of the drone is lower than the set value, the numerical comparator on the unmanned vehicle compares the power of each drone being charged, so that the drone with a power lower than the set value is swapped with the drone with the highest power, and then the drone with the highest power flies back to the unmanned vehicle;

[0030] S2-3-4: When the UAV’s battery power is higher than the set value, the UAV will fly directly back to the unmanned vehicle.

[0031] Beneficial effects of the present invention:

[0032] The present invention proposes an unmanned evidence collection system for roadside parking spaces and an evidence collection method thereof. On the one hand, when an unmanned vehicle enters a parking space in a secondary area to collect evidence, a drone can monitor the parking space while charging, so that evidence can be collected in time when the vehicle leaves, while also ensuring the endurance of the drone. The drone interrupts monitoring due to exhaustion of power, thereby improving the stability and reliability of the entire system. On the other hand, when all vehicles parked in the parking spaces in the secondary area leave, the drone can be recovered, and the recovered drone can convert the power in the second power storage unit into the power of the unmanned vehicle, and the unmanned vehicle can be charged through the second power storage unit on the drone, thereby improving the endurance of the unmanned vehicle, preventing the unmanned vehicle from delaying evidence collection due to charging, and improving the timeliness of evidence collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic diagram of a single secondary area of ​​the unmanned evidence collection system of the present invention;

[0034] Figure 2 A schematic diagram of a drone of the unmanned evidence collection system of the present invention;

[0035] Figure 3 It is a connection diagram of the unmanned evidence collection system of the present invention;

[0036] Figure 4 It is an overall flow chart of the unmanned evidence collection method of the present invention.

[0037] Reference numerals:

[0038] 1. Unmanned vehicle; 2. Berth; 3. Geomagnetic sensor; 4. Charging pile; 5. Drone; 51. First power storage unit; 52. Second power storage unit; 53. Second camera unit; 54. Rotating platform; 55. Bracket. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Example 1

[0041] like Figure 1-Figure 3 As shown, an unmanned evidence collection system for roadside parking spaces includes an unmanned vehicle 1 with a first camera unit, the unmanned vehicle 1 cruises in the area of ​​roadside parking spaces 2, and also includes a geomagnetic sensor 3 arranged in each parking space 2, each geomagnetic sensor 3 is numbered in sequence, the geomagnetic sensor 3 is communicated with the unmanned vehicle 1, when the geomagnetic sensor 3 senses that a vehicle is parked in the parking space 2, a evidence collection signal is sent to the unmanned vehicle 1, the unmanned vehicle 1 drives to the parking space 2 with the corresponding number to collect evidence, and obtains image evidence of the vehicle entering the parking space 2.

[0042] There are also multiple charging piles 4 in the area of ​​the roadside parking space 2. The charging piles 4 are evenly distributed along the road and divide the parking space 2 on the road into multiple secondary areas. There are also multiple drones 5 in the unmanned vehicle 1 that are connected to the unmanned vehicle 1 and can enter and exit freely. The drone 5 is provided with a second camera unit 53. After the unmanned vehicle 1 collects evidence of the vehicle in the parking space 2, the drone 5 flies from the unmanned vehicle 1 to the charging pile 4 corresponding to the secondary area where the parking space 2 is located, and monitors all the parking spaces 2 in the secondary area while charging. When there are no vehicles parked in the parking spaces 2 in the secondary area, the drone 5 flies back to the unmanned vehicle 1. Through the monitoring of the drone 5, when the vehicle in the parking space 2 leaves, evidence can be collected in time, and image evidence of the vehicle leaving can be obtained, and then a complete image evidence chain can be formed with the image evidence of the vehicle entering the parking space 2, thereby improving the credibility of the evidence. When the drone 5 monitors and charges, the endurance of the drone 5 can be extended, and the drone 5 can be prevented from interrupting monitoring due to exhaustion of power, thereby improving the stability and reliability of the entire system.

[0043] In this embodiment, the charging pile 4 is located in the middle of the secondary area, and the drone 5 is provided with a rotating platform 54 that can rotate 360°. The second camera unit 53 is arranged on the rotating platform 54, and the rotating platform 54 rotates back and forth, so that the second camera unit 53 can simultaneously monitor the berths 2 on both sides of the charging pile 4. While ensuring the image quality, the monitoring range of a single drone 5 is significantly improved, thereby reducing the number of drones 5 required to monitor the entire roadside berth 2 area, and reducing the cost of the evidence collection system.

[0044] In this embodiment, the unmanned vehicle 1 is also provided with a map software, and the map software is used to confirm the relative position of each parking space 2 and the unmanned vehicle 1. When a vehicle enters the parking space 2 behind the unmanned vehicle 1 and evidence needs to be collected, the parking space 2 behind the unmanned vehicle 1 is collected by the unmanned vehicle 5. When a vehicle enters the parking space 2 behind the unmanned vehicle 1 and evidence needs to be collected, the unmanned vehicle 1 cannot go in reverse, and when collecting evidence through the unmanned vehicle 1, the unmanned vehicle 1 needs to take a detour to reach the parking space 2 for evidence collection, resulting in a delay in evidence collection; while when collecting evidence from the parking space 2 behind the unmanned vehicle 1 through the unmanned vehicle 5, the unmanned vehicle 5 can directly reach the parking space 2 without taking a detour, thereby preventing delays in evidence collection, improving the timeliness of evidence collection, and further improving the reliability of image evidence.

[0045] Specifically, the number of the drones 5 is greater than the number of the charging piles 4. On the one hand, it can ensure that when the drones 5 are on the charging piles 4 to monitor the secondary area, there are additional drones 5 to collect evidence from the parking space 2 behind the unmanned vehicle 1, thereby preventing the unmanned vehicle 1 from having to take a detour to collect evidence from the parking space 2 behind due to insufficient number of drones 5, thereby further improving the timeliness of evidence collection. On the other hand, when vehicles enter multiple parking spaces 2 at the same time, additional drones 5 can be quickly dispatched to multiple parking spaces 2 to collect evidence at the same time, thereby preventing the drones 5 from having to collect evidence from multiple parking spaces 2 one by one, thereby improving the flexibility of the drone 5 in collecting evidence.

[0046] Specifically, the drone 5 is also provided with a power detector, and the unmanned vehicle 1 is provided with a numerical comparator, and the power detector is in communication with the numerical comparator; when the power of the drone 5 collecting evidence at the berth 2 behind the unmanned vehicle 1 is lower than the set value, the numerical comparator compares the power of the drone 5 on the charging pile 4, so that the drone 5 with a power lower than the set value is swapped with the drone 5 with the highest power. By setting a power detector in the drone 5, the remaining power of the drone 5 can be monitored in real time, and the drone 5 can be prevented from being powered off due to power exhaustion during the evidence collection process, resulting in evidence collection failure or even damage, thereby improving the reliability and safety of the drone 5. In addition, by swapping the drone 5 with a power lower than the set value with the drone 5 with the highest power, the existing resources can be utilized to the maximum extent, ensuring that the drone 5 with sufficient power can continue to collect evidence, while the drone 5 with insufficient power has the opportunity to charge, thereby optimizing resource allocation.

[0047] Specifically, at least two charging positions are provided on the charging pile 4. When a drone 5 with a battery level lower than a set value is swapped with a drone 5 with the highest battery level, the drone 5 with a low battery level first lands on the charging pile 4 to charge, while monitoring the secondary area corresponding to the charging pile 4. Then the drone 5 with a high battery level leaves the charging pile 4, ensuring that during the entire drone 5 swap process, the monitoring task will not be interrupted due to the replacement of the drone 5, avoiding a monitoring blind spot caused by the replacement of the drone 5, preventing a vehicle from leaving during the swap process of the drone 5, resulting in omissions in the monitoring, and ensuring the integrity and continuity of the monitoring.

[0048] The drone 5 includes a first power storage unit 51 and a second power storage unit 52. When the drone 5 flies to the charging pile 4, the charging pile 4 charges the first power storage unit 51 and the second power storage unit 52 at the same time; the first power storage unit 51 is used to power the drone 5, and when the drone 5 flies back into the unmanned vehicle 1, the second power storage unit 52 charges the unmanned vehicle 1; the second power storage unit 52 also enables the drone 5 to function as a mobile power source. The recovered drone 5 can convert the power in the second power storage unit 52 into the power of the unmanned vehicle 1, thereby improving the endurance of the unmanned vehicle 1, preventing the unmanned vehicle 1 from delaying evidence collection due to charging, and improving the timeliness of evidence collection.

[0049] In this embodiment, the drone 5 is provided with a first wireless charging coil and a second wireless charging coil, the first wireless charging coil is electrically connected to the first power storage unit 51 and the second power storage unit 52 at the same time, and the second wireless charging coil is electrically connected to the second power storage unit 52; the charging pile 4 is provided with a third wireless charging coil adapted to the first wireless charging coil, and when the drone 5 lands on the charging pile 4, the third wireless charging coil is induced by the first wireless charging coil; the unmanned vehicle 1 is provided with a fourth wireless charging coil adapted to the second wireless charging coil, and after the drone 5 flies back to the unmanned vehicle 1, the second wireless charging coil is induced by the fourth wireless charging coil. Wireless charging can improve the safety of charging the drone 5 on rainy days, prevent the charging interface from short-circuiting or leaking due to rainwater infiltration, and improve the safety of charging the drone 5.

[0050] In this embodiment, the drone 5 is provided with a bracket 55 made of magnetic material, and the charging pile 4 is provided with an electromagnet matching the bracket 55. When the drone 5 lands on the charging pile 4, the electromagnet is magnetically connected to the bracket 55. On the one hand, the magnetic connection is adaptive, and the electromagnet can quickly lock the drone 5 on the charging pile 4 after the drone 5 lands on the charging pile 4, thereby improving the convenience of fixing the drone 5; on the other hand, compared with the traditional physical buckle or mechanical locking structure, the electromagnet has higher stability and resistance to external interference, further improving the safety of the drone 5 when charging.

[0051] Specifically, the magnetic material may be carbon steel.

[0052] It also includes a background server, which is communicated with the unmanned vehicle 1 and the drone 5 at the same time. After the unmanned vehicle 1 and the drone 5 collect vehicle information, they send the collected images to the background server. The background server generates a toll bill based on the collected images, and sends the collected images and the toll bill to the owner's smart terminal.

[0053] Example 2

[0054] like Figure 4 As shown, a forensics method applied to the unmanned forensics system of Example 1 includes the following steps:

[0055] S1: The geomagnetic sensor 3 detects that a vehicle has entered the parking space 2 and sends a forensic signal to the unmanned vehicle 1;

[0056] S2-1: After receiving the evidence collection signal, the unmanned vehicle 1 determines the relative position between the evidence collection parking space 2 and the unmanned vehicle 1;

[0057] S2-2: When the evidence collection parking space 2 is located in front of the unmanned vehicle 1, the unmanned vehicle 1 goes to the evidence collection parking space 2 to collect evidence;

[0058] S2-3: When the evidence collection berth 2 is located behind the unmanned vehicle 1, the drone 5 goes to the evidence collection berth 2 to collect evidence;

[0059] S3-1: After the unmanned vehicle 1 or the drone 5 has completed the evidence collection, the evidence collection information is sent to the backend server, and it is determined whether there is a drone 5 monitoring the secondary area where the evidence collection berth 2 is located;

[0060] S3-2: When there is no drone 5 monitoring the secondary area where the evidence collection berth 2 is located, the unmanned vehicle 1 sends a drone 5 to land on the charging pile 4 in the secondary area, or the evidence collection drone 5 directly lands on the charging pile 4 in the secondary area and monitors all berths 2 in the secondary area;

[0061] S3-3: When the secondary area where the evidence collection berth 2 is located is monitored by a drone 5, the unmanned vehicle 1 leaves the evidence collection berth 2, or the evidence collection drone 5 returns to the unmanned vehicle 1;

[0062] S4: When the geomagnetic sensor 3 detects that the vehicle in parking space 2 has left, it sends a signal to the unmanned vehicle 1, and the unmanned vehicle 1 sends a signal to the drone 5 monitoring the parking space 2. After receiving the signal, the drone 5 collects evidence of the vehicle leaving the parking space 2.

[0063] S5: Drone 5 sends the evidence information of the vehicle leaving to the backend server, and the backend server integrates the evidence information of the vehicle entering and leaving parking space 2 to form a complete image evidence chain.

[0064] Specifically, step S2-3 specifically includes the following steps:

[0065] S2-3-1: Drone 5 goes to evidence collection bay 2 to collect evidence;

[0066] S2-3-2: The power detector on the drone 5 detects whether the power of the drone 5 is lower than the set value;

[0067] S2-3-3: When the power of the drone 5 is lower than the set value, the value comparator on the unmanned vehicle 1 compares the power of each drone 5 being charged, so that the drone 5 with the power lower than the set value is swapped with the drone 5 with the highest power, and then the drone 5 with the highest power flies back to the unmanned vehicle 1;

[0068] S2-3-4: When the battery level of UAV 5 is higher than the set value, UAV 5 directly flies back to unmanned vehicle 1.

[0069] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

1. An unmanned evidence collection system for roadside parking spaces, comprising an unmanned vehicle with a first camera unit, the unmanned vehicle cruising in the area of ​​roadside parking spaces, and further comprising a geomagnetic sensor disposed in each parking space, each geomagnetic sensor being numbered in sequence, the geomagnetic sensor being communicatively connected with the unmanned vehicle, and sending an evidence collection signal to the unmanned vehicle when the geomagnetic sensor senses that a vehicle is parked in the parking space, and the unmanned vehicle drives to the parking space with the corresponding number to collect evidence, characterized in that: A plurality of charging piles are also arranged in the roadside parking area, and the charging piles are evenly distributed along the road, and the parking spaces on the road are divided into a plurality of secondary areas; a plurality of drones are also arranged in the unmanned vehicle, which are in communication connection with the unmanned vehicle and can freely enter and exit, and a second camera unit is arranged on the drone. When the unmanned vehicle collects evidence of the vehicle in the parking space, the drone flies from the unmanned vehicle to the charging pile corresponding to the secondary area where the parking space is located, and monitors all the parking spaces in the secondary area while charging. When there are no parking spaces in the secondary area with vehicles parked, the drone flies back to the unmanned vehicle; The drone includes a first power storage unit and a second power storage unit. When the drone flies to the charging pile, the charging pile charges the first power storage unit and the second power storage unit at the same time. The first power storage unit is used to supply power to the drone. When the drone flies back to the unmanned vehicle, the second power storage unit charges the unmanned vehicle. It also includes a background server, which is connected to the communication with the unmanned vehicle and the drone at the same time. After the unmanned vehicle and the drone collect vehicle information, the collected images are sent to the background server. The background server generates a toll bill based on the collected images, and sends the collected images and the toll bill to the owner's smart terminal.

2. The unmanned evidence collection system for roadside parking spaces according to claim 1, characterized in that: The charging pile is located in the middle of the secondary area. The drone is provided with a rotating platform that can rotate 360 ​​degrees. The second camera unit is arranged on the rotating platform. The rotating platform rotates back and forth, so that the second camera unit can monitor the berths on both sides of the charging pile at the same time.

3. The unmanned evidence collection system for roadside parking spaces according to claim 1, characterized in that: The unmanned vehicle is also provided with a map software, and the map software is used to confirm the relative position of each parking space and the unmanned vehicle. When a vehicle enters the parking space behind the unmanned vehicle and evidence needs to be collected, the parking space behind the unmanned vehicle is collected through the drone.

4. The unmanned evidence collection system for roadside parking spaces according to claim 3 is characterized in that: The number of the drones is greater than the number of the charging piles to ensure that when there are drones on the charging piles to monitor the secondary area, there are additional drones to collect evidence from the parking space behind the unmanned vehicle.

5. The unmanned evidence collection system for roadside parking spaces according to claim 4, characterized in that: The drone is also provided with a power detector, and the unmanned vehicle is provided with a numerical comparator, and the power detector is communicatively connected to the numerical comparator; when the power of the drone collecting evidence at the berth behind the unmanned vehicle is lower than a set value, the numerical comparator compares the power of the drones on the charging pile, so that the drone with a power lower than the set value is swapped with the drone with the highest power.

6. The unmanned evidence collection system for roadside parking spaces according to claim 5, characterized in that: At least two charging positions are provided on the charging pile. When a drone with a battery level lower than a set value is swapped with a drone with the highest battery level, the drone with the low battery level first lands on the charging pile for charging while monitoring the secondary area corresponding to the charging pile. Then the drone with the high battery level leaves the charging pile.

7. The unmanned evidence collection system for roadside parking spaces according to claim 1, characterized in that: The drone is provided with a first wireless charging coil and a second wireless charging coil, the first wireless charging coil is electrically connected to the first power storage unit and the second power storage unit at the same time, and the second wireless charging coil is electrically connected to the second power storage unit; the charging pile is provided with a third wireless charging coil compatible with the first wireless charging coil, and when the drone lands on the charging pile, the third wireless charging coil is induced by the first wireless charging coil; the unmanned vehicle is provided with a fourth wireless charging coil compatible with the second wireless charging coil, and after the drone flies back to the unmanned vehicle, the second wireless charging coil is induced by the fourth wireless charging coil.

8. The unmanned evidence collection system for roadside parking spaces according to claim 1, characterized in that: The drone is provided with a bracket made of magnetic material, and the charging pile is provided with an electromagnet matching the bracket. When the drone lands on the charging pile, the electromagnet is magnetically connected to the bracket.

9. A method for collecting evidence applied to an unmanned evidence collection system for roadside parking spaces according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: The geomagnetic sensor detects that a vehicle has entered the parking space and sends a forensic signal to the unmanned vehicle; S2-1: After receiving the evidence collection signal, the unmanned vehicle determines the relative position between the evidence collection parking space and the unmanned vehicle; S2-2: When the evidence collection parking space is located in front of the unmanned vehicle, the unmanned vehicle goes to the evidence collection parking space to collect evidence; S2-3: When the evidence collection parking space is located behind the unmanned vehicle, the drone goes to the evidence collection parking space to collect evidence; S3-1: When the unmanned vehicle or drone has completed the evidence collection, the evidence collection information is sent to the backend server, and it is determined whether there is any drone monitoring in the secondary area where the evidence collection berth is located; S3-2: When there is no drone monitoring the secondary area where the evidence collection berth is located, the unmanned vehicle sends a drone to land on the charging pile in the secondary area, or the evidence collection drone directly lands on the charging pile in the secondary area and monitors all berths in the secondary area; S3-3: When there is a drone monitoring the secondary area where the evidence collection parking lot is located, the unmanned vehicle leaves the evidence collection parking lot, or the evidence collection drone returns to the unmanned vehicle; S4: When the geomagnetic sensor detects that a vehicle has left the parking space, it sends a signal to the unmanned vehicle, which then sends a signal to the drone monitoring the parking space. After receiving the signal, the drone collects evidence of the vehicle leaving the parking space. S5: The drone sends the evidence information of the vehicle leaving to the backend server, and the backend server integrates the evidence information of the vehicle entering and leaving the parking space to form a complete image evidence chain.

10. The unmanned evidence collection method for roadside parking spaces according to claim 9, characterized in that: Step S2-3 specifically includes the following steps: S2-3-1: The drone goes to the evidence collection berth to collect evidence; S2-3-2: The power detector on the drone detects whether the power of the drone is lower than the set value; S2-3-3: When the power of the drone is lower than the set value, the numerical comparator on the unmanned vehicle compares the power of each drone being charged, so that the drone with a power lower than the set value is swapped with the drone with the highest power, and then the drone with the highest power flies back to the unmanned vehicle; S2-3-4: When the UAV’s battery power is higher than the set value, the UAV will fly directly back to the unmanned vehicle.

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