Unmanned aerial vehicle auxiliary public safety patrol system

Abstract

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle assisted public safety patrol system, which comprises an unmanned aerial vehicle module, an anomaly detection module, a mounting module, a communication module, a ground base station module, an area identification module and an information sharing module, the unmanned aerial vehicle module is used for receiving various instructions on the ground, carrying various detection and identification tools to carry out safety patrol on an area and transmitting information; the information sharing module can be used for issuing emergency notices to the public when natural disasters and terrorist attacks happen, and the information sharing module enables the criminal police, the traffic police and the patrol police to achieve rapid information circulation. Automatic patrol and information recording among a plurality of base stations are realized through a flight control unit of the unmanned aerial vehicle module by utilizing GPS and directional base station navigation, manual frequent intervention is not needed, a large area can be efficiently covered, and compared with a traditional manual patrol mode, more places can be patrolled within the same time, and the patrol efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a UAV-assisted public safety patrol system. Background Art

[0002] Traditional public safety patrols rely mainly on manpower, with police officers patrolling on the ground. However, this method is relatively inefficient, especially when covering large areas, requiring a lot of manpower and time. For example, patrolling in large parks, remote mountainous areas, or vast industrial parks, police officers patrolling on foot or in vehicles may not be able to quickly and comprehensively cover all areas.

[0003] With the development of materials science, electronic technology and aeronautical engineering, the flight performance of drones has been greatly improved. Modern drones have the characteristics of long endurance, high stability and high maneuverability. For example, multi-rotor drones can fly flexibly in a small space, and fixed-wing drones can achieve long-distance and high-speed flight, which can meet the needs of public safety patrols in different scenarios.

[0004] Traditional public security patrols are mainly manual and limited by physical strength and energy. The patrol coverage area is limited in the same period of time. A police officer may only be able to patrol a few streets or small communities in an hour. Patrol route planning and determination of key areas rely on the experience of patrol officers, which lacks scientificity and systematicness. There is also a large difference in patrol quality among different personnel. Summary of the invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a drone-assisted public security patrol system to solve the problems that patrol route planning and key area determination rely on the experience of patrol personnel, lack scientificity and systematicness, and the patrol quality of different personnel varies greatly.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: UAV-assisted public safety patrol system, UAV-assisted public safety patrol system, including: UAV module, anomaly detection module, mounting module, communication module, ground base station module, area identification module, information sharing module; The drone module is used to: receive various ground instructions, carry various detection and identification tools to patrol the area safely and transmit information; The anomaly detection module is used to detect the drone and the surrounding environment, autonomously detect suspicious persons in the surrounding area, calibrate them, and observe and determine whether there is malicious behavior; The mounting module is used to: by taking high-resolution color images on the data acquisition device, the color, texture, shape and other detailed information of the photographed object can be clearly presented, and the photographed information and images can be transmitted back to the ground through the communication module; The communication module is used to transmit the flight altitude, speed, heading and attitude of the drone to the ground control station in real time, and receive images and videos taken by the camera on the drone and data collected by the sensor to the ground staff; The ground base station module is used for: the ground base station is the core of the interaction between the operator and the UAV, controls the flight of the UAV by sending precise control instructions, and receives various data transmitted back by the UAV through the communication link, including flight status data; The area recognition module is used to: during the flight of the drone, the area recognition module identifies areas with different terrain and geomorphic features, such as plains, hills, and mountains, so that the map can more accurately reflect geographic information. At the same time, the recognition module prevents the drone from flying out of its patrol area, and can respond in time when providing auxiliary safety; The information sharing module is used for: when natural disasters or terrorist attacks occur, the information sharing module can be used to issue emergency notices to the public. The information sharing module enables rapid information flow between criminal police, traffic police, and patrol police.

[0007] Preferably, the UAV module includes: a power detection unit, a flight control unit and a transmission unit. The power detection unit is used to: drive the UAV to fly, ensure the normal operation of various equipment detected during the mission, and transmit data to the ground through the communication unit. The flight control unit is used to: GPS and directional base station navigation to allow the UAV to fly back and forth between multiple base stations to complete automatic patrols and record information during the process. The transmission unit is used to: transmit the flight data detected during the patrol, whether the environment is abnormal, and whether pedestrians and vehicles are normal to the ground through the transmission unit.

[0008] Preferably, the abnormality detection module includes: a data acquisition unit, an alarm unit and a feedback unit, the data acquisition unit is used to: collect various physical quantity data, such as temperature, humidity, pressure, acceleration, displacement, the alarm unit is used to: when an abnormality is detected, emit a buzzer or an alarm to remind relevant personnel or push the abnormal information to relevant personnel via text messages, emails, instant messaging software, and the feedback unit is used to: after the alarm is issued, manual confirmation of the abnormal situation is required to avoid false alarms and ensure the authenticity of the abnormal situation.

[0009] Preferably, the mounting module includes: an optical imaging unit, a laser detection unit and an environmental detection unit. The optical imaging unit is used to: take clear, colorful images and transmit them back to the ground, so as to help the ground understand the detailed situation of the ground from high altitude for processing; the laser detection unit is used to: scan the laser beam in the horizontal and vertical directions, so as to obtain three-dimensional point cloud data of the surrounding environment; the environmental detection unit is used to detect the concentration of surrounding gases, which is suitable for complex environmental monitoring scenarios.

[0010] Preferably, the communication module includes: a data transmission unit, a signal processing unit and an antenna unit, the data transmission unit is used to: transmit the collected data of the drone out or transmit the patrol route into the interior, the signal processing unit is used to: convert the original digital signal or analog signal into a signal form suitable for transmission on a specific transmission medium, and encode the original data and convert it into a specific coding format, the antenna unit is used to: concentrate the electromagnetic waves in a specific direction for radiation and reception, and has gain and directivity.

[0011] Preferably, the ground base station module includes: a ground communication and signal transmission unit, a ground recovery unit and a control and operation unit. The ground communication and signal transmission unit is used to establish a wireless communication connection with the UAV to realize two-way transmission of data. The ground recovery unit is used to fly the UAV back to the ground recovery unit at a fixed point after patrolling to recover the UAV. The control and operation unit is used to communicate with the UAV through wireless signals and send flight control instructions. It has functions such as route planning and mission setting, and can realize automated flight of the UAV.

[0012] Preferably, the region identification module includes: a data processing unit, a data algorithm unit and a model unit, the data processing unit is used to: extract representative features from the collected images, such as edge features, texture features, color features, these features can be used as an important basis for region identification, the data algorithm unit is used to: cluster data points with similar features together to form different clusters. In region identification, different regions are divided according to the clustering of data such as position, distance, signal strength, etc. The model unit is used to: the vector model represents geographic entities through point, line, and surface geometric elements, which is suitable for accurately representing the boundaries and shapes of geographic objects; the raster model divides the geographic space into regular grid units, each unit stores corresponding attribute information, and is suitable for representing continuous terrain and soil.

[0013] Preferably, the information sharing module includes: a data format conversion unit, a data exchange protocol unit and a real-time sharing unit. The data format conversion unit is used for: compression and decompression of image data. It can lossily compress image data to reduce the amount of data and facilitate image transmission and sharing between different devices. The data exchange protocol unit is used for: the basic protocol of the Internet. In information sharing, the TCP / IP protocol enables stable and efficient data exchange between different networks and different devices. The real-time sharing unit is used for: direct conversion through the data exchange protocol unit to transmit the real-time captured and detected data to the site and ground units in real time.

[0014] The present invention provides a drone-assisted public security patrol system. It has the following beneficial effects: 1. The present invention uses GPS and directional base station navigation through the flight control unit of the drone module to realize automatic patrol between multiple base stations and record information. It does not require frequent human intervention and can efficiently cover a large area. Compared with the traditional manual patrol method, it can patrol more locations in the same time, thereby improving patrol efficiency.

[0015] 2. The area recognition module of the present invention can identify areas with different terrain features and prevent the drone from flying out of the patrol area. This ensures that the drone patrols within the specified range, making the patrol more targeted, avoiding waste of resources, and enabling more in-depth inspections of key areas.

[0016] 3. The optical imaging unit in the mounting module of the present invention can take high-resolution color images to present the details of objects, the laser detection unit obtains three-dimensional point cloud data, and the environmental detection unit detects gas concentration. Multiple data collection methods allow the drone to perceive environmental information in all directions during patrol, without missing any potential safety hazards, thereby improving the comprehensiveness and effectiveness of patrols. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a system architecture diagram of the drone-assisted public safety patrol system proposed by the present invention; Figure 2 This is a diagram of the drone module architecture of the drone-assisted public safety patrol system proposed by the present invention; Figure 3 This is a diagram of the architecture of the anomaly detection module of the drone-assisted public safety patrol system proposed by the present invention; Figure 4 This is a mounting module architecture diagram of the UAV-assisted public safety patrol system proposed by the present invention; Figure 5 This is a communication module architecture diagram of the drone-assisted public safety patrol system proposed by the present invention; Figure 6This is a diagram of the ground base station module architecture of the drone-assisted public safety patrol system proposed by the present invention; Figure 7 This is a diagram of the regional identification module architecture of the drone-assisted public safety patrol system proposed by the present invention; Figure 8 This is an architecture diagram of the information sharing module of the drone-assisted public safety patrol system proposed in the present invention. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings 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.

[0019] Example: Please see attached Figure 1 -Attached Figure 8 The embodiment of the present invention provides a drone-assisted public safety patrol system, and the drone-assisted public safety patrol system includes: UAV module, anomaly detection module, mounting module, communication module, ground base station module, area identification module, information sharing module; The drone module is used to: receive various ground commands, carry various detection and identification tools to patrol the area safely and transmit information; The anomaly detection module is used to detect drones and their surroundings, autonomously detect suspicious people around them, calibrate them, and observe and determine whether there is any malicious behavior; The mounting module is used to: take high-resolution color images in the data acquisition device to clearly present the color, texture, shape and other details of the photographed object, and transmit the photographed information and images back to the ground through the communication module; The communication module is used to transmit the UAV's flight altitude, speed, heading, and attitude to the ground control station in real time, and to receive images and videos taken by the UAV's camera and data collected by sensors to the ground staff; The ground base station module is used for: the ground base station is the core of the interaction between the operator and the UAV, controls the flight of the UAV by sending precise control instructions, and receives various data transmitted back by the UAV through the communication link, including flight status data; The regional identification module is used to: During the flight of the drone, the regional identification module identifies areas with different terrain and landform features, such as plains, hills, and mountains, so that the map can more accurately reflect the geographic information. At the same time, the identification module prevents the drone from flying out of its patrol area and can respond in time when providing auxiliary safety; The information sharing module is used for: When natural disasters or terrorist attacks occur, the information sharing module can be used to issue emergency notices to the public. The information sharing module enables rapid flow of information between criminal police, traffic police, and patrol police.

[0020] The UAV module includes: a power detection unit, a flight control unit and a transmission unit. The power detection unit is used to: drive the UAV to fly, ensure the normal operation of various equipment during the mission, and transmit data to the ground through the communication unit. The flight control unit is used for: GPS and directional base station navigation to allow the UAV to fly back and forth between multiple base stations to complete automatic patrols and record information during the process. The transmission unit is used to: transmit the flight data detected during the patrol, whether the environment is abnormal, whether pedestrians and vehicles are normal, and transmit the data to the ground through the transmission unit.

[0021] Specifically, the power detection unit drives flight and equipment monitoring, provides power to make the UAV fly, uses the internal monitoring mechanism to detect the operating status of the equipment, and transmits data with the help of the communication unit to ensure normal flight, timely discover equipment problems, and provide equipment status information to the ground; the flight control unit realizes automatic patrol and information recording of the UAV between multiple base stations, relies on GPS and directional base station navigation, flies according to the preset route, and records the flight process information at the same time, improves patrol efficiency, reduces manual operation, and accurately records patrol data; the transmission unit transmits patrol-related data to the ground, and sends flight data, environment, pedestrian and vehicle conditions and other information to the ground receiving end according to the set transmission method, so that ground personnel can grasp the situation of the patrol area in time, providing a basis for safety assessment, etc.

[0022] The anomaly detection module includes: a data acquisition unit, an alarm unit and a feedback unit. The data acquisition unit is used to collect various physical quantity data, such as temperature, humidity, pressure, acceleration, and displacement. The alarm unit is used to emit a buzzer or alarm to remind relevant personnel or push the abnormal information to relevant personnel through text messages, emails, and instant messaging software when an abnormality is detected. The feedback unit is used to manually confirm the abnormal situation after the alarm is issued. Manual confirmation avoids false alarms and ensures the authenticity of the abnormal situation.

[0023] Specifically, the data acquisition unit measures and collects data on the physical quantities of the environment or objects through corresponding sensors, such as temperature sensors, humidity sensors, etc., to provide a rich data basis for subsequent abnormal judgment and monitor the environmental status in multiple dimensions. The alarm unit triggers the alarm mechanism when the data acquired by the data acquisition unit exceeds the normal range, which can be a sound signal or sending abnormal information to relevant personnel through the network. Multiple alarm methods ensure that relevant personnel can know the abnormal situation in time and improve the response speed. The feedback unit, after the alarm unit sounds an alarm, the relevant personnel check and confirm the abnormal situation according to the actual situation to avoid system false alarms, ensure that corresponding measures are taken for real abnormal situations, and reduce unnecessary waste of resources.

[0024] The mounting module includes: an optical imaging unit, a laser detection unit and an environmental detection unit. The optical imaging unit is used to: take clear, colorful images and transmit them back to the ground, helping the ground to understand the detailed situation of the ground from high altitude for processing. The laser detection unit is used to: scan the laser beam in the horizontal and vertical directions to obtain three-dimensional point cloud data of the surrounding environment. The environmental detection unit is used to detect the concentration of surrounding gases and is suitable for complex environmental monitoring scenarios.

[0025] Specifically, the optical imaging unit uses optical lenses and image sensors to collect and process light, converts optical information into electronic image signals, and then transmits them back to the ground through the transmission system, providing intuitive and detailed visual information for ground personnel, assisting them in analyzing and making decisions on ground conditions. The laser detection unit scans in the horizontal and vertical directions by emitting laser beams. The laser is reflected back after encountering an object, and the distance is calculated based on the round-trip time of the laser, thereby constructing three-dimensional point cloud data of the surrounding environment, accurately depicting the three-dimensional structure of the environment, and playing an important role in terrain mapping, object recognition and other fields. The environmental detection unit uses specific gas sensors to sense and measure the composition and concentration of gases in the environment, and can detect abnormal gas concentrations in a timely manner, which helps prevent dangerous situations in the fields of chemical industry and environmental protection. The communication module includes: a data transmission unit, a signal processing unit and an antenna unit. The data transmission unit is used to transmit the collected data of the drone or transmit the patrol route into the interior. The signal processing unit is used to convert the original digital signal or analog signal into a signal form suitable for transmission on a specific transmission medium, and encode the original data and convert it into a specific coding format. The antenna unit is used to concentrate the electromagnetic waves in a specific direction for radiation and reception, and has gain and directivity.

[0026] Specifically, the data transmission unit sends the data collected by the drone to a designated location based on different transmission methods such as wired or wireless methods, or receives patrol route information input from the outside, ensuring the interactivity of the data so that the drone can perform tasks according to external instructions, and at the same time use the collected data for analysis and processing; the signal processing unit converts the original signal into a signal form that adapts to the transmission medium through modulation and demodulation, and then uses the codec to convert the data into a specific coding format to reduce interference during transmission, improve transmission efficiency, improve the stability of signal transmission and the accuracy of data transmission, and ensure reliable transmission of information; the antenna unit concentrates electromagnetic waves in a specific direction for radiation or reception through a specific design, and uses the gain and directivity of the antenna to enhance the signal strength. In long-distance transmission, it can improve the quality of the signal, reduce signal attenuation and interference, and enhance the communication effect.

[0027] The ground base station module includes: a ground communication and signal transmission unit, a ground recovery unit and a control and operation unit. The ground communication and signal transmission unit is used to establish a wireless communication connection with the UAV to realize two-way transmission of data. The ground recovery unit is used to fly the UAV back to the ground recovery unit at a fixed point after patrolling to recover the UAV. The control and operation unit is used to communicate with the UAV through wireless signals and send flight control instructions. It has functions such as route planning and mission setting, and can realize the automated flight of the UAV.

[0028] Specifically, the ground communication and signal transmission unit uses wireless communication technology such as radio waves in a specific frequency band to build a communication link between the ground base station and the UAV, realize data uploading and downloading, ensure that the UAVs on the ground and in the air can exchange information in real time, and provide communication guarantee for the control and data collection of the UAV. The ground recovery unit sets the location information of the recovery point to guide the UAV to fly back to the ground recovery unit at a preset route after the mission is completed, so as to facilitate the maintenance, maintenance, charging and other operations of the UAV, improve the utilization efficiency and service life of the UAV, and ensure the safe recovery of the UAV. The control operation unit sends flight control instructions such as take-off, landing, and route change through wireless signals. Combined with the route planning and mission setting functions, the flight of the UAV is precisely controlled to achieve efficient and precise control of the UAV, reduce the difficulty of manual operation, and improve the degree of automation of UAV mission execution.

[0029] The region identification module includes: a data processing unit, a data algorithm unit and a model unit. The data processing unit is used to extract representative features from the collected images, such as edge features, texture features, and color features. These features can be used as an important basis for region identification. The data algorithm unit is used to cluster data points with similar features to form different clusters. In region identification, different regions are divided according to the clustering of data such as location, distance, and signal strength. The model unit is used to: The vector model represents geographic entities through point, line, and surface geometric elements, which is suitable for accurately representing the boundaries and shapes of geographic objects; the raster model divides the geographic space into regular grid units, each unit stores corresponding attribute information, and is suitable for representing continuous terrain and soil.

[0030] Specifically, the data processing unit analyzes and processes the collected images, and uses image recognition algorithms, such as edge detection algorithms, texture analysis algorithms, color analysis algorithms, etc., to extract representative features such as edges, textures, and colors. These features can provide key basis for subsequent regional identification and improve the accuracy of regional identification. The data algorithm unit uses a clustering algorithm to cluster data points with similar features in terms of position, distance, and signal strength to form different clusters, and divides regions according to the clustering situation. This can divide regions more scientifically and reasonably, and is especially suitable for complex data environments. The model unit, the vector model accurately represents the boundaries and shapes of geographic entities through geometric elements such as points, lines, and surfaces; the raster model divides the geographic space into regular grid units, and each unit stores attribute information to represent continuous terrain and soil. The two models complement each other and can describe and analyze geographic areas more comprehensively and accurately.

[0031] The information sharing module includes: a data format conversion unit, a data exchange protocol unit and a real-time sharing unit. The data format conversion unit is used for: compression and decompression of image data. It can lossily compress image data to reduce the amount of data and facilitate image transmission and sharing between different devices. The data exchange protocol unit is used for: the basic protocol of the Internet. In information sharing, the TCP / IP protocol enables stable and efficient data exchange between different networks and different devices. The real-time sharing unit is used for: direct conversion through the data exchange protocol unit to transmit the real-time captured and detected data to the site and ground units in real time.

[0032] Specifically, the data format conversion unit uses a specific image compression algorithm, the JPEG algorithm, to perform lossy compression on image data, remove redundant information to reduce the amount of data; at the receiving end, it decompresses and restores the image, facilitating efficient transmission and sharing of images between different devices, saving transmission bandwidth and storage resources. The data exchange protocol unit, taking the TCP / IP protocol as an example, ensures reliable data transmission through the transmission control protocol. The Internet Protocol (IP) is responsible for data routing and addressing, realizes data interaction between different networks and devices, provides unified and stable communication rules for information sharing, and breaks down the barriers between devices and networks. The real-time sharing unit, based on the data exchange protocol unit, directly converts the collected data for transmission, reduces the intermediate links in data processing, and realizes real-time data push, so that on-site and ground units can obtain the latest data in a timely manner, improve response speed and timeliness of decision-making.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. UAV-assisted public safety patrol system, characterized by: include: UAV module, anomaly detection module, mounting module, communication module, ground base station module, area identification module, information sharing module; The drone module is used to: receive various ground instructions, carry various detection and identification tools to patrol the area safely and transmit information; The anomaly detection module is used to detect the drone and the surrounding environment, autonomously detect suspicious persons in the surrounding area, calibrate them, and observe and determine whether there is malicious behavior; The mounting module is used to: by taking high-resolution color images on the data acquisition device, the color, texture, shape and other detailed information of the photographed object can be clearly presented, and the photographed information and images can be transmitted back to the ground through the communication module; The communication module is used to transmit the flight altitude, speed, heading and attitude of the drone to the ground control station in real time, and receive images and videos taken by the camera on the drone and data collected by the sensor to the ground staff; The ground base station module is used for: the ground base station is the core of the interaction between the operator and the UAV, controls the flight of the UAV by sending precise control instructions, and receives various data transmitted back by the UAV through the communication link, including flight status data; The area recognition module is used to: during the flight of the drone, the area recognition module identifies areas with different terrain and geomorphic features, such as plains, hills, and mountains, so that the map can more accurately reflect geographic information. At the same time, the recognition module prevents the drone from flying out of its patrol area, and can respond in time when providing auxiliary safety; The information sharing module is used for: when natural disasters or terrorist attacks occur, the information sharing module can be used to issue emergency notices to the public. The information sharing module enables rapid information flow between criminal police, traffic police, and patrol police.

2. The drone-assisted public safety patrol system according to claim 1, characterized in that: The UAV module includes: a power detection unit, a flight control unit and a transmission unit. The power detection unit is used to drive the UAV to fly, ensure the normal operation of various equipment detected during the mission, and transmit data to the ground through the communication unit. The flight control unit is used to: GPS and directional base station navigation to allow the UAV to fly back and forth between multiple base stations to complete automatic patrols and record information during the process. The transmission unit is used to: transmit the flight data detected during the patrol, whether the environment is abnormal, and whether pedestrians and vehicles are normal to the ground through the transmission unit.

3. The drone-assisted public safety patrol system according to claim 1, characterized in that: The abnormality detection module includes: a data acquisition unit, an alarm unit and a feedback unit. The data acquisition unit is used to collect various physical quantity data, such as temperature, humidity, pressure, acceleration, and displacement. The alarm unit is used to emit a buzzer or an alarm to remind relevant personnel or push the abnormal information to relevant personnel via text messages, emails, or instant messaging software when an abnormality is detected. The feedback unit is used to manually confirm the abnormal situation after the alarm is issued. Manual confirmation avoids false alarms and ensures the authenticity of the abnormal situation.

4. The drone-assisted public safety patrol system according to claim 1, characterized in that: The mounting module includes: an optical imaging unit, a laser detection unit and an environmental detection unit. The optical imaging unit is used to take clear and colorful images and transmit them back to the ground, so as to help the ground understand the detailed situation of the ground from high altitude for processing. The laser detection unit is used to scan the laser beam in the horizontal and vertical directions to obtain three-dimensional point cloud data of the surrounding environment. The environmental detection unit is used to detect the concentration of surrounding gases and is suitable for complex environmental monitoring scenarios.

5. The drone-assisted public safety patrol system according to claim 1, characterized in that: The communication module includes: a data transmission unit, a signal processing unit and an antenna unit. The data transmission unit is used to transmit the collected data of the drone or transmit the patrol route into the interior. The signal processing unit is used to convert the original digital signal or analog signal into a signal form suitable for transmission on a specific transmission medium, and encode the original data and convert it into a specific coding format. The antenna unit is used to concentrate electromagnetic waves in a specific direction for radiation and reception, and has gain and directivity.

6. The drone-assisted public safety patrol system according to claim 1, characterized in that: The ground base station module includes: a ground communication and signal transmission unit, a ground recovery unit and a control and operation unit. The ground communication and signal transmission unit is used to establish a wireless communication connection with the UAV to realize two-way transmission of data. The ground recovery unit is used to fly the UAV back to the ground recovery unit at a fixed point after patrolling to recover the UAV. The control and operation unit is used to communicate with the UAV through wireless signals and send flight control instructions. It has functions such as route planning and mission setting, and can realize the automated flight of the UAV.

7. The drone-assisted public safety patrol system according to claim 1, characterized in that: The region identification module includes: a data processing unit, a data algorithm unit and a model unit. The data processing unit is used to extract representative features from the collected images, such as edge features, texture features, and color features. These features can be used as an important basis for region identification. The data algorithm unit is used to cluster data points with similar features to form different clusters. In region identification, different regions are divided according to the clustering of data such as position, distance, and signal strength. The model unit is used to: the vector model represents geographic entities through point, line, and surface geometric elements, which is suitable for accurately representing the boundaries and shapes of geographic objects; the grid model divides the geographic space into regular grid units, each unit stores corresponding attribute information, and is suitable for representing continuous terrain and soil.

8. The drone-assisted public safety patrol system according to claim 1, characterized in that: The information sharing module includes: a data format conversion unit, a data exchange protocol unit and a real-time sharing unit. The data format conversion unit is used for: compression and decompression of image data. It can compress image data lossily to reduce the amount of data and facilitate image transmission and sharing between different devices. The data exchange protocol unit is used for: the basic protocol of the Internet. In information sharing, the TCP / IP protocol enables stable and efficient data exchange between different networks and different devices. The real-time sharing unit is used for: direct conversion through the data exchange protocol unit to transmit the real-time captured and detected data to the site and ground units in real time.

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