A driverless security patrol vehicle

Abstract

This utility model discloses an unmanned security patrol vehicle, relating to the field of security equipment technology. It includes a vehicle body and a chassis, the chassis being welded from aluminum alloy. The vehicle body includes a driver's cab at the front and a rear trunk. The trunk contains a mounting bracket for storing emergency equipment, and an electric door is located on the outside of the trunk. Wheels and a power system are mounted on the chassis. Doors are located on both sides of the driver's cab, with alarm buttons above the doors. An alarm horn and a protective shell are located on the top of the vehicle body. An intelligent monitoring and control system is housed inside the protective shell, and a camera component is mounted on a bracket. This vehicle integrates four major functions: unmanned driving, anti-riot and explosion protection, fire assistance, and emergency alarm, solving the problem of limited functionality in existing patrol vehicles. It supports switching between unmanned automatic patrol and manual operation, improving patrol efficiency. In case of fire, the trunk can be remotely and automatically opened.

Description

Technical Field

[0001] This utility model relates to the field of security equipment technology, specifically an unmanned security patrol vehicle. Background Technology

[0002] Security patrols in public places mainly rely on three types of equipment: unmanned patrol vehicles, heavy armored security vehicles, and ordinary manned patrol vehicles, but all have significant limitations. While unmanned patrol vehicles can achieve basic monitoring and automatic patrolling, their functions are limited, lacking fire-fighting assistance, riot control equipment, and emergency response capabilities. They also cannot support human-machine collaborative operations, making it difficult to meet complex security needs. Traditional armored security vehicles, while possessing high-strength protection and riot control capabilities, have extremely high manufacturing costs, rely on manual driving, and cannot achieve automated patrolling. They are only suitable for specific high-threat scenarios and are difficult to deploy on a large scale in ordinary public places. Ordinary manned patrol vehicles, while capable of flexibly responding to emergencies, are entirely dependent on manual operation, their patrol efficiency is constrained by personnel condition, and they lack advanced functions such as intelligent identification and remote control, failing to meet the automation and intelligence requirements of modern security.

[0003] The core problem with security patrol equipment is the difficulty in balancing functionality and cost. Low-cost equipment has limited functionality, while high-performance equipment cannot be widely adopted due to its high cost. At the same time, autonomous driving technology has not been effectively integrated with diverse security functions (such as riot control, fire protection, and emergency alarms), resulting in a disconnect between automated patrol and emergency response capabilities. This makes it impossible to meet the needs of both unmanned autonomous patrol and human intervention, thus limiting its application effectiveness in dynamic security scenarios. Utility Model Content

[0004] The purpose of this invention is to provide an unmanned security patrol vehicle to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An unmanned security patrol vehicle includes a body and a chassis, and also includes:

[0007] The vehicle includes an alarm button, a chassis welded from aluminum alloy, a driver's cab at the front and a trunk at the rear, an equipment rack for storing emergency equipment inside the trunk, an electric door outside the trunk, wheels and a power system on the chassis, doors on both sides of the driver's cab, an alarm button above the door, an alarm horn and a protective shell on the top of the vehicle, and an intelligent monitoring and control system inside the protective shell.

[0008] The security PTZ camera consists of a rotary drive mechanism, a transmission mechanism, a support frame, and a lens assembly. The lens assembly is mounted on the support frame and includes a camera, a searchlight, and a lidar. The security PTZ camera controls the rotation of the lens assembly to monitor and perceive the external environment. The transmission mechanism is located between the rotary drive mechanism and the support frame and is used for power transmission of the security PTZ camera. The transmission mechanism includes a gear set, a rotating shaft, and a slip ring.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the rotary drive mechanism includes a microcontroller, a motor drive module, and a status feedback sensor. The motor drive module includes two sets of stepper motors located in the horizontal and vertical directions, and the microcontroller controls the rotation of the stepper motors.

[0011] In one alternative: the power system includes a battery pack, a permanent magnet synchronous motor, a motor controller, and a charge / discharge protection module. The chassis is provided with a battery compartment for mounting the battery pack. A transmission mechanism is provided between the permanent magnet synchronous motor and the wheels. The permanent magnet synchronous motor rotates and drives the wheels to move through the transmission mechanism.

[0012] In one alternative: multiple obstacle avoidance lidars are installed on the exterior of the vehicle body.

[0013] In one alternative: the trunk is equipped with a control device for controlling the electric door switch, the control device including a DC push rod motor, a limit switch, a control relay and a manual backup switch.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The unmanned security patrol vehicle uses lightweight materials to replicate the shape of a saber-toothed tiger, making it suitable for large-scale deployment in public places such as train stations and bus stations. It integrates four major functions: unmanned driving, anti-riot and anti-explosion, fire assistance, and emergency alarm, solving the problem of the single function of existing patrol vehicles. It supports switching between unmanned automatic patrol and manual operation with passengers, improving patrol efficiency. In case of fire, the trunk can be opened remotely and automatically. One-click alarm can link to the central control station in real time, shortening the emergency response time. It is powered by lithium batteries to achieve low-noise operation, making it suitable for continuous patrol in public places. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an unmanned security patrol vehicle.

[0017] Figure 2 This is a structural diagram of the side of an unmanned security patrol vehicle.

[0018] Figure 3This is a structural diagram of the front of an unmanned security patrol vehicle.

[0019] Figure 4 This is a structural diagram of the chassis of an unmanned security patrol vehicle.

[0020] Figure 5 This is a schematic diagram of the structure of an unmanned security patrol vehicle with the trunk open.

[0021] Figure 6 This is a schematic diagram of the structure of an unmanned security patrol vehicle with the trunk closed.

[0022] Figure 7 This is a schematic diagram of the security pan-tilt unit in an unmanned security patrol vehicle.

[0023] Attached diagram labels: 1-Vehicle body, 2-Intelligent monitoring and control system, 3-Security PTZ, 4-Alarm button, 5-Cockpit, 6-Trunk, 7-Wheel, 8-Battery compartment, 9-Chassis, 10-Obstacle avoidance lidar, 11-Control device, 12-Protective shell, 13-Equipment mounting bracket, 14-Lens component, 15-Searchlight, 16-Transmission mechanism, 17-Rotary drive mechanism, 18-Electric door, 19-Alarm horn, 20-Door, 21-Bracket. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. In the drawings and description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of this utility model. Any obvious modifications or changes made to this utility model do not depart from its spirit and scope.

[0025] In one embodiment, such as Figure 1-7 As shown, an unmanned security patrol vehicle includes a vehicle body 1 and a chassis 9. The chassis 9 is a lightweight Ackerman chassis welded from aluminum alloy materials, serving as the basic load-bearing structure for vehicle operation, supporting the weight of the entire vehicle, enabling flexible steering (minimum turning radius ≤ 5m), and ensuring driving stability in conjunction with the power system. At the same time, the lightweight design reduces energy consumption and improves range. The chassis 9 follows the Ackerman steering geometry principle, connecting the left and right steering wheels through steering tie rods, so that the steering angles of the inner and outer wheels are proportionally distributed during steering (the steering angle of the inner wheel is greater than that of the outer wheel), reducing tire wear and driving resistance during steering. The chassis 9 is connected to the vehicle body 1 through an elastic shock absorption device to reduce the impact of road bumps on the onboard equipment. A protective plate is installed at the bottom to prevent foreign objects such as gravel from hitting chassis components (such as motors and transmission mechanisms) during driving.

[0026] The vehicle body 1 includes a driver's cabin 5 at the front and a trunk 6 at the rear. The driver's cabin 5 provides seating space for 1-2 people and supports manual driving mode (for complex road conditions or emergency operations). It is equipped with human-machine interaction devices (control panel, communication device) to enable human-machine collaborative operation (such as manual control of patrol routes and on-site emergency command). The driver's cabin 5 is equipped with a mode switching switch (autonomous driving / manual driving). When switching to manual mode, the central controller transfers control of the power system and steering system to the driver's cabin control device (steering wheel, accelerator / brake pedal). The equipped communication microphone and speaker establish a direct voice link with the control center, supporting real-time communication between the people in the vehicle and the control center. The seats and control devices adopt a lightweight design to meet both passenger comfort and emergency operation convenience. The trunk 6 is used to store emergency equipment such as fire extinguishers (dry powder and water-based), explosion-proof blankets, etc., providing equipment support in case of fire or explosion protection needs. It also supports remote control opening, allowing equipment to be retrieved without manual on-site operation.

[0027] The trunk 6 has an internal equipment rack 13 for storing emergency equipment. An electric door 18 is located on the exterior of the trunk 6. Wheels 7 and a power system are mounted on the chassis 9. Doors 20 are located on both sides of the driver's cabin 5. An alarm button 4 is located above each door 20. The alarm button 4 is a one-button alarm button, providing an emergency alarm entry point for people in public places. Pressing it quickly triggers voice communication and location / visual linkage with the control center, achieving an integrated emergency response of alarm, location, and visual communication. The button is waterproof and designed to prevent accidental activation (requiring a certain amount of pressure to trigger; a protective cover is provided on the surface). It is connected to the central control... The controller is connected by a hard wire. When pressed, it forms a closed circuit and sends a trigger signal to the central controller. An alarm horn 19 is installed on the top of the vehicle body 1. The alarm horn 19 is connected to the vehicle central controller by an electrical signal. It receives audio playback commands (including preset voice file call commands or real-time voice transmission commands) sent by the central controller. It converts the electrical signals into sound wave signals through the built-in speaker and supports automatic switching of playback content according to different scenarios. The alarm horn 19 is used to play safety publicity voice such as anti-fraud during daily patrols and to play warning voice in scenarios such as fire and emergency safety events, so as to achieve the dual function of safety publicity and emergency warning.

[0028] The vehicle body 1 is equipped with a protective shell 12 on its top. Inside the protective shell 12 is an intelligent monitoring and control system 2. As the core module for unmanned driving and integrated control of the vehicle, the intelligent monitoring and control system 2 realizes functions such as automatic path planning, target following, automatic return, remote monitoring data acquisition and transmission, and remote control command reception and execution. It also integrates the status monitoring of various vehicle systems (such as battery level and equipment operating status). The system integrates a GPS positioning module, a main controller (such as an STM32H743 microprocessor), a wireless communication module (4G / 5G), and a data processing unit. It obtains the real-time location information of the vehicle through the GPS module, combines it with preset electronic fence and map data, generates the optimal patrol route, and receives remote control commands or target following commands (based on the target coordinates identified by the camera) from the remote control platform through the data interface, converting them into control signals for the vehicle's power system and steering system. It collects the operating data of each module in real time (such as battery level and sensor status), processes it, and uploads it to the control center through the wireless communication module. At the same time, it receives control commands from the control center and sends them to the corresponding execution modules.

[0029] The security PTZ 3, composed of a rotary drive mechanism 17, a transmission mechanism 16, a bracket 21, and a lens component 14, enables 360° monitoring of the external environment without blind spots. It captures images of the surrounding environment through a high-definition camera (including infrared mode), supports remote control adjustment of the shooting angle and focal length, and provides real-time visual patrol images to the control center. It can still produce clear images at night or in low light conditions. The central controller receives angle adjustment commands from the control center (or automatically generates adjustment commands according to preset patrol logic). The motor drives the camera to rotate horizontally and vertically (rotation angle range 0-360° horizontal, -30° to 90° vertical). The camera converts the optical image into a digital image signal, which is compressed and then transmitted to the control center through the wireless communication module of the intelligent monitoring and control system. In infrared mode, it emits infrared light through an infrared fill light and receives reflected light to form an image, solving the problem of blind spots in low-light environments.

[0030] The vehicle body 1 is made of lightweight alloy material and replicates the shape of the Saber-toothed Tiger armored vehicle in a one-to-one scale (retaining its intimidating appearance). The rear compartment 6 is sealed and contains fire extinguishers and other fire-fighting equipment. The equipment compartment contains riot control equipment and explosion-proof materials. Two sets of one-button alarm buttons are installed on the surface of the vehicle body. The buttons are electrically connected to the vehicle control module. The roof is equipped with an intelligent monitoring and control system 2, a security pan-tilt unit 3, and an alarm horn 19. The intelligent monitoring and control system 2 is electrically connected to the vehicle's central controller. The intelligent monitoring and control system 2 includes GPS positioning, millimeter-wave radar, and a high-definition camera. It can realize automatic path planning (supporting preset patrol routes), follow mode (following targets by identifying them through the camera), automatic return (triggered by low battery or command), and remote monitoring (data transmission to the control center). It also supports remote control movement (receiving remote control commands via wireless signals).

[0031] The emergency response system of the security patrol vehicle includes:

[0032] Firefighting assistance: The trunk is equipped with an electric opening device (controlled by the central controller). When the roof camera identifies a fire (through a flame recognition algorithm) or receives a command from the control center, the central controller drives the opening device to open the trunk 6. The trunk contains two sets of 4kg dry powder fire extinguishers and fire hoses.

[0033] Alarm linkage: When the one-button alarm is triggered, the central controller automatically connects to the voice and data link with the control center (via a 4G / 5G module) and simultaneously uploads the vehicle location and real-time video. Anti-riot equipment (such as anti-riot shields and stun batons) and explosion-proof equipment (such as explosion-proof blankets) are placed in the equipment compartment and can be retrieved by personnel inside the vehicle or by remote command.

[0034] The human-machine interaction module has a control panel in the cockpit that can switch between unmanned and manual driving modes. The vehicle is equipped with a communication microphone and speaker to support real-time communication between the occupants and the control center.

[0035] In one embodiment, such as Figure 2-7 As shown, the rotating drive mechanism 17 includes a microcontroller, a motor drive module, and a status feedback sensor. It controls the gimbal rotation angle, lens zoom, searchlight switch, and lidar scanning mode. It receives remote control commands from the control center or executes preset patrol monitoring logic (such as cyclic scanning along a fixed trajectory). At the same time, it provides feedback on the real-time status of the gimbal (such as the current angle and whether the equipment is operating normally). The transmission mechanism 16 is used for the stable connection between the security gimbal 3 and the main support. It transmits the power of the rotating drive mechanism 17 to the lens, searchlight, and rotating structure, ensuring the stability and smoothness of the gimbal during 360° rotation, while protecting the internal cables (avoiding tangling or wear during rotation). The stepper motor drives the rotating shaft to rotate after speed reduction and torque increase through a gear set (the horizontal and vertical rotating shafts are driven independently), ensuring smooth rotation. A slip ring is installed at the center of the rotating shaft to conduct the fixed cable (connecting the roof power supply and control interface) to the rotating part cable (connecting the lens and searchlight), realizing power and signal transmission during 360° infinite rotation and avoiding cable tangling and breakage.

[0036] In one embodiment, such as Figure 1-5As shown, the power system provides power for the patrol vehicle and consists of a 60V lithium battery pack (200Ah lithium iron phosphate battery), a 5kW DC permanent magnet synchronous motor, a motor controller, and a charge / discharge protection module. The lithium battery pack outputs DC power to the motor controller via a cable. The motor controller adjusts the frequency and magnitude of the current output to the motor according to the speed command sent by the central controller (or the manual driving pedal), driving the motor to rotate and driving the wheels through the transmission mechanism. The charge / discharge protection module monitors the battery voltage, current, and temperature in real time. When overcharging, over-discharging, short circuit, or overheating occurs, it automatically cuts off the charge / discharge circuit to ensure battery safety. At the same time, it provides a stable 12V / 5V power supply to the vehicle's low-voltage equipment (such as controllers and cameras) through a voltage conversion module.

[0037] In one embodiment, such as Figure 1-4 As shown, battery compartment 8 provides protection and a secure space for the lithium battery pack, featuring waterproof, dustproof, and heat dissipation functions. It adopts a high-strength aluminum alloy frame and a sealed cover design, with an internal battery mounting bracket to prevent battery movement during vehicle operation. The cover has pre-drilled ventilation holes, and a built-in small cooling fan (linked to the battery temperature sensor) automatically activates when the battery temperature exceeds 40°C, dissipating heat through air convection. Waterproof strips are installed along the edges of the compartment, achieving an IP65 protection rating to resist rain and dust intrusion. A charging port and a battery testing port are also provided for easy connection of an external charger and real-time monitoring of the battery status.

[0038] In one embodiment, such as Figure 1-4 As shown, the vehicle body 1 is equipped with multiple obstacle avoidance lidars 10 on its exterior. One lidar (detection angle 120°) is arranged in each of the four directions of the vehicle (front, rear, left, and right), forming a 360° detection range without blind spots. It can detect obstacles (such as pedestrians, walls, and other vehicles) within a range of 0-50m around the vehicle in real time, providing obstacle position and distance data for the autonomous driving system, avoiding collision risks, and ensuring the safety of automatic driving.

[0039] In one embodiment, such as Figure 1-5As shown, the trunk 6 is equipped with a control device 11 for controlling the opening and closing of the electric door 18, enabling remote automatic opening and closing of the trunk door. It supports control via central command, automatic fire-triggered control, and manual emergency control (with a backup switch inside the vehicle), ensuring rapid access to emergency equipment. The control device 11 includes a DC push rod motor, limit switches, control relays, and a manual backup switch. The trunk 6 adopts a sealed structure, with equipment secured internally using fireproof and explosion-proof equipment mounting brackets to prevent shaking during driving. The trunk door is connected to the electric opening device (DC push rod motor), and the motor control terminal is electrically connected to the central controller. When the intelligent monitoring and control system 2 detects a fire (camera flame recognition signal) or receives an opening command from the central control unit, the central controller sends a forward rotation signal to the motor, extending the push rod to open the trunk door. After retrieval, a reverse rotation signal can be sent via central command or manual operation, causing the motor to retract the push rod and close the door.

[0040] The above embodiments of this utility model provide an unmanned security patrol vehicle. The vehicle body 1 is made of high-strength aluminum alloy plate (thickness 3-5mm) welded and formed, and its shape is restored according to the Saber-toothed Tiger armored vehicle at a 1:1 scale. The length of the vehicle body 1 is 5.2m, the width is 2.1m and the height is 2.3m. The driver's seat is made of stab-proof material and can accommodate 2 people. The trunk volume is 0.8m³. A temperature sensor is installed on the inside (for assisting in fire identification). The equipment compartment contains 2 riot shields (PC material, thickness 5mm), 2 stun batons (voltage 100,000 volts, battery life 8 hours), and 1 explosion-proof blanket (aramid material, protection level 1.5kg TNT equivalent). The equipment is fixed with Velcro for easy and quick access.

[0041] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An unmanned security patrol vehicle, comprising a vehicle body and a chassis, characterized in that, Also includes: The vehicle includes an alarm button, a chassis welded from aluminum alloy, a driver's cab at the front and a trunk at the rear, an equipment rack for storing emergency equipment inside the trunk, an electric door outside the trunk, wheels and a power system on the chassis, doors on both sides of the driver's cab, an alarm button above the door, an alarm horn and a protective shell on the top of the vehicle, and an intelligent monitoring and control system inside the protective shell. The security PTZ camera consists of a rotary drive mechanism, a transmission mechanism, a support frame, and a lens assembly. The lens assembly is mounted on the support frame and includes a camera, a searchlight, and a lidar. The security PTZ camera controls the rotation of the lens assembly to monitor and perceive the external environment. The transmission mechanism is located between the rotary drive mechanism and the support frame and is used for power transmission of the security PTZ camera. The transmission mechanism includes a gear set, a rotating shaft, and a slip ring.

2. The unmanned security patrol vehicle according to claim 1, characterized in that, The rotary drive mechanism includes a microcontroller, a motor drive module, and a status feedback sensor. The motor drive module includes two sets of stepper motors located in the horizontal and vertical directions, and the microcontroller controls the rotation of the stepper motors.

3. The unmanned security patrol vehicle according to claim 1, characterized in that, The power system includes a battery pack, a permanent magnet synchronous motor, a motor controller, and a charge / discharge protection module. The chassis is equipped with a battery compartment for mounting the battery pack. A transmission mechanism is provided between the permanent magnet synchronous motor and the wheels. The permanent magnet synchronous motor rotates and drives the wheels to move through the transmission mechanism.

4. The unmanned security patrol vehicle according to claim 1, characterized in that, The vehicle body is equipped with multiple obstacle avoidance lidars.

5. The unmanned security patrol vehicle according to claim 4, characterized in that, The trunk is equipped with a control device for controlling the electric door switch. The control device includes a DC push rod motor, a limit switch, a control relay, and a manual backup switch.

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