Automobile service system client terminal

Abstract

The present invention discloses a customer terminal for an automobile service system, comprising an automatic locker for storing car keys and an intelligent electronic control system for controlling the automatic locker. The automatic locker comprises a base plate and a modular cabinet body disposed on the base plate. The modular cabinet body is formed by connecting multiple baffles. An upper cover is disposed on the top of the modular cabinet body. A plurality of regularly arranged drawer mounting openings are provided on the front baffle. Drawer assemblies are disposed at the drawer mounting openings. The drawer assembly includes a drawer and a motor drive mechanism for controlling the automatic opening and closing of the drawer. Consumers can use the automobile service system to obtain integrated services such as car care, maintenance, and car washing for their private cars without leaving their homes. This solves the problem of waiting in line for automobile service and enables customized service functions such as appointment charging for electric vehicles.

Description

Technical Field

[0001] The present invention belongs to the technical field of automation and intelligent control, and particularly relates to a customer terminal of an automobile service system. Background Art

[0002] The automotive service industry is known as the golden industry of the automotive aftermarket. With the continued growth of my country's car ownership and the increasing demand for car care and maintenance services, the automotive service market is poised for continued expansion. Traditional car services require customers to queue up at a service station for repairs and maintenance, wasting valuable time.

[0003] Currently, users can access their keys at maintenance stations, saving time in line, but they can't complete vehicle maintenance services locally through automated terminals. However, current key lockers suffer from low automation, poor security, electronic lock failures due to power outages, and structural friction that can easily cause jamming and malfunction, leading to loopholes in vehicle key management. Current lockers also lack intelligent detection of the operating status of doors or drawers, leading to potential injuries such as key jams and finger pinching. Summary of the Invention

[0004] The present invention aims to address the aforementioned problems of the prior art by proposing an automated automobile service system terminal, suitable for placement in automobile service stations and parking lots. This terminal enables automated and reliable access to car keys and self-service reservations, thereby achieving intelligent and efficient automobile service. Consumers can access integrated services such as car care, maintenance, and car washes through the system without leaving their homes. This eliminates the need for waiting in line for automobile service and enables customized services such as electric vehicle charging reservations.

[0005] To achieve the above-mentioned object, the present invention adopts the following technical solution: a car service system customer terminal, comprising an automatic storage cabinet for storing car keys and an intelligent electronic control system for controlling the automatic storage cabinet, wherein the automatic storage cabinet comprises a bottom plate and a combined cabinet body arranged on the bottom plate, wherein the combined cabinet body is formed by connecting a plurality of baffles, an upper cover plate is arranged on the top of the combined cabinet body, a plurality of drawer mounting openings arranged in a regular pattern are opened on the front baffle, a drawer assembly is arranged at the drawer mounting opening, the drawer assembly comprises a drawer and a motor drive mechanism for controlling the automatic opening and closing of the drawer, and the plurality of drawer assemblies are connected The drawers are independently arranged with each other, each drawer is provided with an outer frame fixedly connected to the front side baffle, and the drawer is slidably arranged in the outer frame through guide rails on both sides, and a driving mechanism platform is also provided at the inner end of the drawer mounting opening, and a connecting part is provided on one side of the driving mechanism platform, which is buckled on the outer frame, and a notch is formed on the side wall of the connecting part parallel to the tail end of the drawer; the motor drive mechanism includes a self-locking drive motor and a guide rod, and the self-locking drive motor is arranged under the drive mechanism platform, and the output shaft of the self-locking drive motor passes through the drive mechanism platform upward, and a drive gear is installed on the output shaft. The guide rod is an L-shaped structure, consisting of a long rod and a short rod perpendicular to each other. The short rod is fixed to the tail end of the drawer, and a rack is fitted on one side of the long rod, which is engaged with the driving gear; the self-locking drive motor drives the rack to move through the driving gear; a locating bearing is provided on the other side of the long rod relative to the driving gear, and the axis of the locating bearing is provided in the vertical direction and is located on the upper end face of the driving mechanism platform, the outer ring of the locating bearing contacts the long rod, and the inner ring of the locating bearing is sleeved on the mounting shaft on the driving mechanism platform, and a travel switch assembly is also provided on the driving mechanism platform, and the travel switch assembly includes two A travel switch and a trigger bar arranged on the long rod. When the guide rod moves along the length direction, the trigger bar moves between the two travel switches, triggers the travel switch and stops, and is used to control the travel position of the drawer; the intelligent electronic control system is installed on the electronic component board, and the electronic component board is located on the inner wall of the rear baffle. The electronic component board is fixedly connected to the baffle through an adjustable frame. The adjustable frame includes two vertically arranged fixed plates, and multiple mounting holes are evenly distributed along the length direction of the two fixed plates; the intelligent electronic control system includes a controller and an emergency handheld device connected to the controller signal.

[0006] To further improve this solution, the controller is installed on the electronic component board, including a single-chip microcomputer, a position detection module, a motor drive module, a communication module and a storage module; the position detection module is used to obtain the real-time position signal of the drawer and send the position signal to the single-chip microcomputer, the signal output end of the single-chip microcomputer is connected to the motor drive module, and sends a control signal to start or shut down the self-locking drive motor to the motor drive module, the motor drive module is used to receive the control signal of the single-chip microcomputer and control the opening and closing of the self-locking drive motor, the single-chip microcomputer is respectively connected to the communication module and the storage module signal, the communication module is used to realize the communication connection between the single-chip microcomputer and the system software, and receive the control instructions sent by the system software to control the opening and closing of the drawer and send the drawer opening and closing signal feedback to the system software, and the storage module is used to store the operating data of the single-chip microcomputer when the power is off.

[0007] To further improve this solution, the position detection module circuit includes an optocoupler U2, a resistor R2, a resistor R3, a capacitor C11 and a capacitor C12, pin 1 of the optocoupler U2 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the +12V power supply, capacitor C11 is connected in parallel between pin 1 and pin 2 of the optocoupler U2, pin 2 of the optocoupler U2 is connected to the FeedBack_1 interface, the FeedBack_1 interface is connected to the first end of the travel switch, the second end of the travel switch is grounded, pin 4 of the optocoupler U2 is respectively connected to the first end of the resistor R3 and the FBI detection interface of the microcontroller, the second end of the resistor R3 is connected to the +5V power supply, capacitor C12 is connected in parallel between pin 3 and pin 4 of the optocoupler U2, and pin 3 of the optocoupler U2 is grounded.

[0008] To further improve this solution, the motor drive module circuit includes a motor drive chip U20, the pin OA interface of the motor drive chip U20 is respectively connected to the first end of C49 and the OA_1 control interface of the self-locking drive motor, the OB interface of the U20 is respectively connected to the second end of C49 and the OB_1 control interface of the self-locking drive motor, the VCC interface of the motor drive chip U20 is connected to the +12V power supply, the GND interface of the motor drive chip U20 is grounded, the IA interface of the motor drive chip U20 is connected to the IA_1 control interface of the microcontroller, and the IB interface of the U20 is connected to the IB_1 control interface of the microcontroller.

[0009] To further improve this solution, the controller power supply is provided by AC power, and the AC power outputs a DC 12V voltage through the AC-DC module to power the self-locking drive motor. The AC power outputs a 5V voltage through the voltage stabilization and anti-pinch judgment module to power the controller and the stroke detection circuit.

[0010] Further improve this solution. The voltage stabilization and anti-pinch judgment module circuit includes a voltage stabilization chip IC1, a diode D6, a diode D7, a diode D8, a protection diode TVS1, a light-emitting diode LED1, a polarity capacitor CL1, a polarity capacitor CL5, a polarity capacitor C73, a capacitor C74, a resistor R56, and a resistor R77. The IN interface of the voltage stabilization chip IC1 is respectively connected to the cathode of the diode D8 and the anode of the polarity capacitor CL5, the anode of the diode D8 is respectively connected to the first end of the resistor R77 and the power supply V2, and the second end of the resistor R77 is respectively connected to the cathode of the diode D6, the cathode of the diode D7, the power supply V1, and the anode of the polarity capacitor CL1. The negative electrode of the polarity capacitor CL1 is grounded, the positive electrode of the diode D6 is connected to the +12V main power supply, the positive electrode of the diode D7 is connected to the +12V power supply of the emergency handheld device, and the OUT interface of the voltage regulator chip IC1 is respectively connected to the positive electrode of the polarity capacitor C73, the first end of the capacitor C74, the negative electrode of the protection diode TVS1, the first end of the resistor R56 and the +5V power supply. The second end of the resistor R56 is connected to the positive electrode of the light-emitting diode LED1. The GND interface of the voltage regulator chip IC1, the negative electrode of the polarity capacitor CL5, the negative electrode of the polarity capacitor C73, the second end of the capacitor C74, the positive electrode of the protection diode TVS1 and the negative electrode of the light-emitting diode LED1 are commonly connected to the ground.

[0011] To further improve this solution, the emergency handheld device includes a battery pack, a CPU module, a power output module, a control circuit module, an LDO module, a terminal interface module, a communication interface module, a keyboard and an LCD module. The power supply end of the battery pack is electrically connected to the control circuit module, the output end of the control circuit module is respectively connected to the power output module and the LDO module, the output end of the power output module is connected to the DB9 terminal interface module, the output end of the LDO module is respectively connected to the communication interface module and the CPU module, the signal output end of the CPU module is connected to the LCD module, the communication interface module and the control circuit module, and the signal output end of the keyboard is respectively connected to the CPU module and the control circuit module.

[0012] Further improve this solution, the control circuit module circuit includes chip IC2, connector JP1, polarity capacitor C9, polarity capacitor C10, capacitor C27, diode D2, diode D3, diode D4, transistor T1, resistor R23 and resistor R38, the IN interface of chip IC2 is respectively connected to pin 1 of connector JP1, VCC_IN interface and the positive electrode of polarity capacitor C9, the OUT interface of chip IC2 is respectively connected to the positive electrode of polarity capacitor C10, the first end of capacitor C27 and +5V power supply, pin 2 of connector JP1, the negative electrode of polarity capacitor C9, chip GND interface, the negative electrode of polarity capacitor C10 and the second end of capacitor C27 They are connected to ground in common. The ON / OFF interface of chip IC2 is respectively connected to the cathode of diode D3, the cathode of diode D4 and the first end of R24. The second end of R24 is grounded. The anode of diode D4 is connected to the CPU_POW_ON interface. The anode of diode D3 is connected to the first end of resistor R38. The second end of resistor R38 is connected to the collector of transistor T1. The emitter of transistor T1 is connected to the VCC_IN interface. The base of transistor T1 is respectively connected to the first end of resistor R23 and the anode of diode D2. The second end of resistor R23 is connected to the VCC_IN interface. The cathode of diode D2 is connected to the KEY_POW_ON interface.

[0013] To further improve this solution, the communication interface module adopts an RS232 interface.

[0014] To further improve this solution, the terminal interface module adopts a DB9 terminal interface.

[0015] Beneficial effects

[0016] First, the intelligent terminal for the automotive service system of the present invention features a locking function for the key cabinet, through rational structural optimization. This prevents the key cabinet from being opened arbitrarily even during a power outage. The entire system consists of two major components: a control software system and an execution structure. The control software system is primarily responsible for user registration, login, top-up, monitoring, information record query, information reminders, and key access. The execution structure primarily receives commands from the control system and completes corresponding drawer operation instructions. The technical solution of the present invention offers the following advantages over existing technologies: 1. The automatic drawer design improves the automation level of the intelligent terminal device. The motor drive mechanism and guide rail drawer ensure reliable and smooth drawer operation, preventing drawer jams. 2. The execution structure utilizes a power-off locking mechanism, preventing the drawer from becoming inoperative due to power outages, resulting in a failure to lock the key cabinet in time, which could lead to loopholes in vehicle key management. 3. The added anti-pinch feature fully considers human factors to prevent personal injury or property damage. 4. The added handheld device function ensures that the key cabinet remains operational even during a power outage.

[0017] Secondly, the intelligent terminal of the automobile service system of the present invention adopts an automated drawer access design. Through the operating software system interface, the drawer is controlled to automatically open and close for key storage. Each drawer operates independently, and the two sides of the automatic drawer are mounted on the outer frame via guide rails, and the outer frame is mounted on the intelligent terminal cabinet. A motor drive mechanism is designed at the back of the drawer, and the motor drive mechanism is mounted on the drive mechanism platform. When the electronic component controller receives the drawer operation instruction from the software system, it drives the motor through the self-locking drive. The drive gear is fixed to the motor shaft, pushing the rack forward to open the drawer. After the drawer is opened, the travel position is detected by the limit switch and stops. After the key is inserted or removed, the drawer automatically closes after a period of time. When the travel switch detects the closed position, it stops and feedbacks the operation information to the system. The limit column ensures that the rack can travel the maximum distance forward. The guide rod connects the rack and the automatic drawer. The positioning bearing ensures that the guide rod does not deviate during the opening and closing process of the drawer. The drawer guide rail can ensure the smooth operation of the drawer, reduce noise, and extend its life.

[0018] Third, the automotive service system's intelligent terminal has a built-in electronic component controller that completes corresponding drawer operations based on instructions from the host software system. During use, the controller stores a record of each drawer operation, randomly selecting an unused drawer for storage and evenly distributing the number of drawer uses to ensure long-term stable operation of the intelligent terminal device.

[0019] Fourth, to accommodate the use of the automotive service system's intelligent terminal during power outages or emergencies, a handheld device is included for emergency use. This device features an LCD screen and buttons for easy operation. It serves two primary functions: powering the actuator and controlling the opening and closing of the drawer. A connection port is provided on the key cabinet body for connecting the actuator to the emergency handheld device. In the event of a power outage, personnel can use the handheld device to connect to the actuator, powering and opening the actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall exploded view of a cabinet in a customer terminal of an automobile service system of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal layout of a cabinet in a customer terminal of an automobile service system of the present invention;

[0022] Figure 3 This is an exploded view of the structure of a single drawer assembly in a customer terminal of an automobile service system of the present invention;

[0023] Figure 4 This is an exploded view of a touch display mounting base in a customer terminal of an automobile service system of the present invention;

[0024] Figure 5This is an exploded view of a camera mounting bracket in a customer terminal of an automobile service system of the present invention;

[0025] Figure 6 This is a schematic diagram of the power supply principle of a controller in a customer terminal of an automobile service system of the present invention;

[0026] Figure 7 This is a schematic diagram of the working principle of a controller in a customer terminal of an automobile service system of the present invention;

[0027] Figure 8 This is a schematic diagram of the working principle of an emergency handheld device in a customer terminal of an automobile service system of the present invention;

[0028] Figure 9 This is the circuit diagram of the position detection module in the present invention;

[0029] Figure 10 This is the circuit diagram of the motor drive module in the present invention;

[0030] Figure 11 This is the circuit diagram of the voltage stabilization and finger pinch prevention judgment module in the present invention;

[0031] Figure 12 This is a circuit diagram of a control circuit module of the emergency handheld device of the present invention;

[0032] Figure 13 This is a circuit diagram of a power output module of the emergency handheld device of the present invention;

[0033] Figure 14 This is a circuit diagram of the power detection module of the emergency handheld device of the present invention;

[0034] Markings in the figure: 1, bottom plate, 2, combined cabinet body, 2-1, baffle, 2-2, drawer installation port, 3, upper cover, 4, drawer, 5, self-locking drive motor, 6, guide rod, 7, drive gear, 8, rack, 9, positioning bearing, 10, limit switch, 11, drive mechanism platform, 12, electronic component board, 13, adjustable rack, 14, light box assembly, 15, base, 16, handle, 17, mounting bracket, 18, transparent protective cover, 19, outer frame, 20, guide rail, 21, notch, 101, single piece Machine, 102, position detection module, 103, motor drive module, 104, communication module, 105, storage module, 106, touch display, 107, AC-DC module, 108, voltage stabilization and anti-pinch judgment module, 109, camera, 201, battery pack, 202, CPU module, 203, power output module, 204, control circuit module, 205, LDO module, 206, terminal interface module, 207, communication interface module, 208, keyboard, 209, LCD module. DETAILED DESCRIPTION

[0035] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0036] As shown in the figure: An embodiment of the present invention provides a car service system customer terminal, including an automatic storage cabinet for storing car keys and an intelligent electronic control system for controlling the automatic storage cabinet. The automatic storage cabinet includes a bottom plate 1 and a combined cabinet body 2 arranged on the bottom plate 1. The combined cabinet body 2 is formed by connecting multiple baffles 2-1. An upper cover plate 3 is provided on the top of the combined cabinet body 2. A plurality of regularly arranged drawer installation openings 2-2 are opened on the front baffle 2-1. A drawer assembly is provided at the drawer installation opening 2-2. The drawer assembly includes a drawer 4 and a motor drive mechanism for controlling the automatic opening and closing of the drawer 4. The multiple drawer assemblies are independently arranged, and each drawer assembly is independently arranged. Each drawer 4 is provided with an outer frame 19 fixedly connected to the front baffle 2-1, and the drawer 4 is slidably arranged in the outer frame 19 through the guide rails 20 on both sides. A driving mechanism platform 11 is also provided at the inner end of the drawer mounting port 2-2, and a connecting portion is provided on one side of the driving mechanism platform 11, which is buckled on the outer frame 19, and a notch 21 is formed on the side wall of the connecting portion parallel to the tail end of the drawer 4; the motor drive mechanism includes a self-locking driving motor 5 and a guide rod 6, and the self-locking driving motor 5 is arranged below the driving mechanism platform 11, and the output shaft of the self-locking driving motor 5 passes through the driving mechanism platform 11 upward, and a driving gear 7 is installed on the output shaft. The guide rod 6 is an L-shaped structure, consisting of a long rod and a short rod perpendicular to each other. The short rod is fixed to the tail end of the drawer 4, and a rack 8 meshing with the driving gear 7 is provided on one side of the long rod; the self-locking drive motor 5 drives the driving gear 7, and the driving gear 7 drives the rack 8 to move; a locating bearing 9 is provided on the other side of the long rod relative to the driving gear 7, and the axis of the locating bearing 9 is provided on the driving mechanism platform 11 in the vertical direction, the outer ring of the locating bearing 9 is in contact with the long rod, and the inner ring of the locating bearing 9 is sleeved on the mounting shaft on the driving mechanism platform 11, and a travel switch assembly is also provided on the driving mechanism platform 11, The switch 10 and the trigger bar set on the long rod, when the guide rod 6 moves along the length direction, the trigger bar moves between the two travel switches 10, the trigger bar triggers the travel switch 10 and stops, and is used to control the travel position of the drawer 4; the intelligent electronic control system is fixed on the electronic component board 12, the electronic component board 12 is located on the inner wall of the rear baffle 2-1, the electronic component board 12 is fixedly connected to the baffle 2-1 through an adjustable frame 13, the adjustable frame 13 includes two vertically arranged fixed plates, and a plurality of mounting holes are evenly distributed along the length direction of the two fixed plates; the intelligent electronic control system includes a controller and an emergency handheld device connected to the controller signal.The intelligent electronic control system is mounted on an electronic component board 12 on the inner side of the rear baffle 2-1. The electronic component board 12 is fixedly connected to the rear baffle 2-1 via an adjustable bracket 13. The adjustable bracket 13 includes two vertically arranged fixing plates with multiple mounting holes evenly distributed along the length of the two fixing plates. In this embodiment, electrical components are mounted on the electronic component board 12, which is fixed to the adjustable bracket 13. The adjustable bracket 13 has multiple regularly spaced mounting holes, allowing the mounting height of the electrical components to be adjusted up and down. The adjustable bracket 13 is fixed to the housing on both sides. The intelligent electronic control system includes a controller and an emergency handheld device connected to the controller signal. The controller power supply is provided by the mains power supply. The mains power output is a 12V DC voltage through the AC-DC module 107 to power the self-locking drive motor 5. The mains power output is a 5V voltage through the voltage stabilization and anti-pinch judgment module 108 to power the controller and the travel detection circuit. The key cabinet in this embodiment has a locking function, which prevents the key cabinet from being opened arbitrarily even in the event of a power outage. The entire system is divided into two parts: the control software system and the execution structure. The control software system is mainly used for user registration, login, recharge, monitoring, information record query, information reminder and key access, etc. The execution structure mainly accepts instructions issued by the control system and completes the corresponding drawer cabinet operation instructions.

[0037] Automatic drawer design: The intelligent terminal of the automobile service system adopts an automatic storage and retrieval drawer design scheme. Through the operating software system interface, the drawer 4 is controlled to automatically open and close for key storage. Each drawer 4 operates independently. The two sides of the drawer 4 are mounted on the outer frame 19 through guide rails 20, and the outer frame 19 is mounted on the intelligent terminal cabinet. A motor drive mechanism is designed at the back of the drawer, and the motor drive mechanism is mounted on the drive mechanism platform 11. The motor drive mechanism consists of a self-locking drive motor 5, a drive gear 7, a rack 8, a guide rod 6, a limit column, a positioning bearing 9 and a travel switch 10. When the controller receives the drawer operation instruction from the software system, it drives the self-locking drive motor 5 to operate, and the drive gear 7 is fixed on the motor shaft, pushing the rack 8 forward to open the drawer 4. After the drawer 4 is opened, it stops when the travel position is detected by the travel switch 10. After the key is inserted or removed, the drawer 4 will automatically close after a period of time. When the travel switch 10 detects the closed position, it stops and feeds back the operation information to the system. The limit post ensures the maximum forward travel distance of the rack 8. The guide rod 6 connects the rack 8 to the drawer 4. The positioning bearing 9 ensures that the guide rod 6 does not deviate during the opening and closing of the drawer 4. The guide rail 20 of the drawer 4 ensures smooth operation of the drawer, reduces noise, and prolongs its life. The travel switch 10 of this solution adopts a micro switch.

[0038] Waterproof Design: The housing is constructed of high-strength cold-rolled steel with a nickel-plated finish for rust resistance, making it rust-proof and waterproof for diverse applications. Key components of the intelligent terminal are mounted in the upper center section, with electrical connections located in the upper portion of the cabinet, effectively preventing flooding in underground garages.

[0039] Lighting design: A light box assembly 14 is provided on the top of the combined cabinet 2. Considering the application of the smart terminal for automobile services, especially in underground garages or at night, a controlled high-brightness LED light box is designed. This light box is placed on top of the smart terminal and controlled by the electronic component board 12. This light box provides illumination, facilitates operation, and can also display promotional information.

[0040] Human-computer interaction design: The intelligent terminal for the automotive service system utilizes a touchscreen display for human-computer interaction. The system primarily handles user registration, login, top-up, monitoring, information logging and querying, reminders, and key access, automatically recording operational information. The human-computer interaction design fully considers the logical operation of the intelligent terminal in actual use, streamlining operations. Information for account registration or login, such as the province abbreviation for license plate information, can be directly entered using a full-font keyboard. A touchscreen display 106 is embedded in the upper cover 3 and is signal-connected to the microcontroller 101. The touchscreen display 106 comprises a base 15, the edges of which are folded toward the same side to form a hem. A handle 16 is mounted on the back of the base. The base 15 is secured to the cabinet through mounting holes on the back of the display. The handle 16 is welded to the base 15, allowing the touchscreen display 106 to be independently installed by simply lifting the handle 16.

[0041] LAN design: The area near the smart terminal is equipped with WIFI coverage through a wireless router, which makes it convenient for garages without mobile phone signals to use mobile terminals to access the Internet.

[0042] Multifunctional camera design: The intelligent terminal of the automobile service system is equipped with a multifunctional camera, which integrates monitoring video, QR code scanning and face recognition functions, making the intelligent terminal more automated, intelligent, and stable and safe in operation. The intelligent terminal of the automobile service system is equipped with monitoring equipment, information storage and record query, etc., which effectively protects the safety of user property. The intelligent electronic control system includes a camera 109, which is embedded in the mounting bracket 17. A transparent protective cover 18 is provided at the front end of the mounting bracket 17. The camera 109 is fixed to the mounting bracket 17 through four screw mounting holes. In order to prevent dust from entering, transparent glass is installed in the front end of the bracket, located on the top surface of the camera 109. The camera 109 is fixed separately by the bracket, and the glass realizes independent installation of the components. The installed components are fixed to the cabinet through the fixing holes on both sides of the bracket.

[0043] Design of electronic component controller: The intelligent terminal of the automobile service system has a built-in electronic component controller, which completes the corresponding drawer operation according to the instructions issued by the host software system. When the drawer intelligent terminal is in use, the controller stores the operation record of each drawer, randomly selects an idle drawer 4 for storage, and can evenly distribute the number of times each drawer 4 is used to ensure the long-term stable operation of the intelligent terminal device. The controller is installed on the electronic component board 12, including a single-chip microcomputer 101, a position detection module 102, a motor drive module 103, a communication module 104, and a storage module 105; the position detection module 102 is used to obtain the real-time position signal of the drawer 4 and send the position signal to the single-chip microcomputer 101. The signal output end of the single-chip microcomputer 101 is connected to the motor drive module 103, and sends a control signal to the motor drive module 103 to start or shut down the self-locking drive motor 5. The motor drive module 103 is used to receive the control signal of the single-chip microcomputer 101 and control the opening and closing of the self-locking drive motor 5. The single-chip microcomputer 10 1 are respectively connected to the communication module 104 and the storage module 105. The communication module 104 is used to realize the communication connection between the single-chip computer 101 and the system software, receive the control instructions sent by the system software to control the opening and closing of the drawer 4, and feed back the opening and closing signals of the drawer 4 to the system software. The storage module 105 is used to store the operation data of the single-chip computer 101 during power failure. The controller is powered by AC220V mains power, outputs a DC 12V voltage through the AC-DC module 107, and supplies power to the self-locking drive motor 5. The output is 5V through the LDO step-down module 109 to supply power to the controller and the stroke detection circuit.

[0044] Design of emergency handheld device: The intelligent terminal of the automobile service system is designed as a handheld device that can be used in emergency situations such as power outages or emergencies. The handheld device is equipped with an LCD screen and buttons for easy operation. The handheld device has two main functions: one is to supply power to the actuator, and the other is to control the opening and closing of the drawer cabinet. A connection port for connecting the actuator and the handheld device is reserved on the key cabinet body. When there is a power outage, the staff can use the handheld device to connect to the actuator structure to realize power supply and opening and closing operations of the actuator. For security reasons, the use of the handheld device requires login with a username and password, and users are divided into ordinary and advanced users. Ordinary users only have the right to modify the password, while advanced users also have the right to add and delete users. The emergency handheld device includes a battery pack 201, a CPU module 202, a power output module 203, a control circuit module 204, an LDO module 205, a terminal interface module 206, a communication interface module 207, a keyboard 208, and an LCD module 209. The power supply end of the battery pack 201 is electrically connected to the control circuit module 204. The output end of the control circuit module 204 is respectively connected to the power output module 203 and the LDO module 205. The output end of the power output module 203 is connected to the terminal interface module 206. The output end of the LDO module 205 is respectively connected to the communication interface module 207 and the CPU module 202. The signal output end of the CPU module 202 is connected to the LCD module 209, the communication interface module 207, and the control circuit module 204. The signal output end of the keyboard 208 is respectively connected to the CPU module 202 and the control circuit module 204. In this embodiment, the communication interface module 207 uses an RS232 interface, and the terminal interface module 206 uses a DB9 terminal interface.

[0045] Example 1: As shown in the figure, the movement principle of the intelligent terminal automated drawer structure is explained: the guide rod 6 is fixed to the rack 8, the drawer 4 is fixed to the guide rod 6, the self-locking drive motor 5 runs to drive the drive gear 7, and the gear drives the rack 8 to move. When the stroke position A moves to the stroke position B, the stroke switch B touches the trigger lever, the self-locking drive motor 5 stops moving, and the drawer 4 opens 100 degrees of stroke; when the stroke position B returns to the stroke position A, the stroke switch A touches the trigger lever, the self-locking drive motor 5 stops moving, and the drawer closes 100 degrees of stroke, and the drawer 4 just reaches the closed state. The motor has a self-locking function, which prevents the drawer 4 from being opened violently after it is closed. The structure of each drawer is independent, which facilitates maintenance and assembly, and avoids excessive cumulative tolerances during processing.

[0046] Example 2: Working Principle of the Finger Pinch Prevention Function: During the automatic drawer closing process, when returning from stroke position B to stroke position A, i.e., when drawer 4 is closing, the electronic component controller detects changes in resistance to the drawer during the operation to provide real-time control. If a finger is not withdrawn from the drawer in time or is blocked by an object, the actuator will immediately perform the opening operation, facilitating finger withdrawal or removal of the obstructing object. Similarly, if an object is blocked during the drawer opening operation, the controller will detect the obstruction, halt the opening operation, and close the drawer to prevent damage to the actuator or other objects caused by forced opening.

[0047] Example 3: Controller Operating Principle: The controller is powered by 220V AC mains electricity, which outputs a 12V DC voltage through the AC-DC module 107 to power the self-locking drive motor 5. The voltage stabilization and anti-pinch detection module 108 then outputs a 5V voltage to power the controller and travel detection circuit. During operation, the controller utilizes the single-chip microcomputer 101 as its core control, combined with embedded software, to implement 16 automatic drawer motor drives, two digital inputs, two digital outputs, and EEPROM power-off storage of operational data. The controller communicates with the system software via an RS232 communication interface, receiving control commands, controlling the automatic opening and closing of the drawers 4, and providing feedback to the system software.

[0048] Example 4: Operating Principle of an Emergency Handheld Device: The emergency handheld device includes a battery pack 201, a CPU module 202, a power output module 203, a control circuit module 204, an LDO module 205, a terminal interface module 206, a communication interface module 207, a keyboard 208, and an LCD module 209. To conserve power, the emergency handheld device does not continuously power the vehicle service system controller. Only when the emergency handheld device needs to issue an operation command to the vehicle service system controller does it preemptively set the CPU pin to a high level output, thereby supplying power to the vehicle service system controller. When the emergency handheld device detects that the operation of the vehicle service system controller has been completed, it resets the pin to a low level, stopping power supply. The DB9 terminal interface is used to connect to the controller. As shown in the figure, its main function is to establish a physical connection for power supply and communication. During use, the emergency handheld device's system program will detect the successful connection through communication. The keyboard 208 on the emergency handheld device is mainly divided into a power button, function keys, and numeric keys. The power button is used to start the device, and the numeric keys are used for digital input, such as account numbers, passwords, and cabinet numbers. The function keys are mainly used to switch interfaces, select functions, confirm settings, etc. The LCD is used for interface display and realizes human-computer interaction together with the keyboard 208.

[0049] The motor drive module circuit includes a motor drive chip U20, the pin OA interface of the motor drive chip U20 is respectively connected to the first end of C49 and the OA_1 control interface of the drive motor, the OB interface of the U20 is respectively connected to the second end of C49 and the OB_1 control interface of the drive motor, the VCC interface of the motor drive chip U20 is connected to the +12V power supply, the GND interface of the motor drive chip U20 is grounded, the IA interface of the motor drive chip U20 is connected to the IA_1 control interface of the microcontroller 101, and the IB interface of the U20 is connected to the IB_1 control interface of the microcontroller 101.

[0050] Working principle description: This circuit is a circuit for controlling the forward and reverse rotation of the drawer motor by the single-chip microcomputer 101. The motor is powered by 12V. IA_1 and IB_1 are controlled by the single-chip microcomputer 101. OA_1 and OB_1 are connected to the motor. L9110S is the motor driver chip with a power supply voltage of 12V. When the motor needs to rotate forward, IA_1 is set to a high level and IB_1 is set to a low level. When the motor needs to reverse, IA_1 is set to a low level and IB_1 is set to a high level. When the motor stops, IA_1 and IB_1 are both set to a low level. The controller can also adjust the PWM waveform output of the control signal by the time ratio of forward rotation and stop to achieve deceleration operation of the motor.

[0051] The position detection module circuit includes an optocoupler U2, a resistor R2, a resistor R3, a capacitor C11 and a capacitor C12. Pin 1 of the optocoupler U2 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the +12V power supply, and a capacitor C11 is connected in parallel between pin 1 and pin 2 of the optocoupler U2. Pin 2 of the optocoupler U2 is connected to the FeedBack_1 interface, the FeedBack_1 interface is connected to the first end of the travel switch 10, and the second end of the travel switch 10 is grounded. Pin 4 of the optocoupler U2 is respectively connected to the first end of the resistor R3 and the FBI detection interface of the microcontroller 101, the second end of the resistor R3 is connected to the +5V power supply, a capacitor C12 is connected in parallel between pin 3 and pin 4 of the optocoupler U2, and pin 3 of the optocoupler U2 is grounded.

[0052] Working principle description: The controller opens and closes the drawer by controlling the forward and reverse rotation of the drawer motor. When the drawer reaches the open or closed position, the motor is stopped by the travel switch 10. In the figure, FeedBack_1 is connected to one end of the microswitch, and the other end of the microswitch is connected to GND. When the drawer is not in the open or closed state, FB1 detects a high level due to the pull-up resistor R3; when the drawer is in the open or closed state, the microswitch is closed. At this time, the 1st and 2nd pins of the U2 optocoupler are turned on, and the R2 resistor limits the conduction current of the optocoupler. The C11 capacitor filters out interference signals to prevent misjudgment. After the optocoupler 1 and 2 pins are turned on, the 4th pin is connected to GND_A, that is, FB1 is connected to the microcontroller 101, and a low level is detected. The controller executes the motor stop command. The C12 capacitor also filters out interference signals to prevent misjudgment.

[0053] The voltage stabilization and anti-pinch judgment module circuit includes a voltage stabilization chip IC1, a diode D6, a diode D7, a diode D8, a protection diode TVS1, a light-emitting diode LED1, a polarity capacitor CL1, a polarity capacitor CL5, a polarity capacitor C73, a capacitor C74, a resistor R56 and a resistor R77. The IN interface of the voltage stabilization chip IC1 is respectively connected to the cathode of the diode D8 and the anode of the polarity capacitor CL5, the anode of the diode D8 is respectively connected to the first end of the resistor R77 and the power supply V2, the second end of the resistor R77 is respectively connected to the cathode of the diode D6, the cathode of the diode D7, the power supply V1 and the anode of the polarity capacitor CL1, the polarity capacitor C The cathode of L1 is grounded, the anode of diode D6 is connected to the +12V main power supply, the anode of diode D7 is connected to the +12V power supply of the emergency handheld device, the OUT interface of the voltage regulator chip IC1 is respectively connected to the anode of polarity capacitor C73, the first end of capacitor C74, the cathode of protection diode TVS1, the first end of resistor R56 and the +5V power supply, the second end of resistor R56 is connected to the anode of light-emitting diode LED1, and the GND interface of voltage regulator chip IC1, the cathode of polarity capacitor CL5, the cathode of polarity capacitor C73, the second end of capacitor C74, the anode of protection diode TVS1 and the cathode of light-emitting diode LED1 are commonly connected to ground.

[0054] Operating Principle: The control board operates normally as long as either the main power supply (+12V) or the emergency handheld device (VIN_12V) is operating normally. After passing through diodes D6 and D7, they connect to capacitor CL1 and V1. V1 is used for post-stage voltage regulation and relay, feedback, and motor power. IC1 is a voltage regulator chip that converts the 12V voltage to 5V to power the microcontroller. CL1, CL5, C73, and C74 primarily provide filtering. TVS1 is a protection diode, and R56 and LED1 form a 5V voltage indicator. Resistor R77 is a finger pinch detection resistor. The controller controls the drawer by detecting changes in resistance during operation. During the closing process of drawer 4, if a finger is not removed from the drawer in time or there is an obstruction, the resistance of the motor driving the drawer will suddenly increase. This sudden increase in resistance causes a sudden increase in the motor's drive current. When the controller detects the sudden increase in current flowing through R77, it immediately drives the motor to open, facilitating finger removal or the removal of the obstruction.

[0055] The control circuit module includes chip IC2, connector JP1, polarity capacitor C9, polarity capacitor C10, capacitor C27, diode D2, diode D3, diode D4, transistor T1, resistor R23 and resistor R38. The IN interface of chip IC2 is respectively connected to pin 1 of connector JP1, VCC_IN interface and the positive electrode of polarity capacitor C9; the OUT interface of chip IC2 is respectively connected to the positive electrode of polarity capacitor C10, the first end of capacitor C27 and the +5V power supply. Pin 2 of connector JP1, the negative electrode of polarity capacitor C9, chip GND interface, the negative electrode of polarity capacitor C10 and the second end of capacitor C27 are connected to the ground. The ON / OFF interface of chip IC2 is respectively connected to the cathode of diode D3, the cathode of diode D4 and the first end of R24, the second end of R24 is grounded, the anode of diode D4 is connected to the CPU_POW_ON interface, the anode of diode D3 is connected to the first end of resistor R38, the second end of resistor R38 is connected to the collector of transistor T1, the emitter of transistor T1 is connected to the VCC_IN interface, the base of transistor T1 is respectively connected to the first end of resistor R23 and the anode of diode D2, the second end of resistor R23 is connected to the VCC_IN interface, and the cathode of diode D2 is connected to the KEY_POW_ON interface.

[0056] The power output module circuit includes a chip Q2, the D interface of the chip Q2 is connected to the VCC_IN interface, the S interface of the chip Q2 is connected to the VCC_OUT interface, the G interface of the chip Q2 is connected to the first end of the resistor R21, the second end of the resistor R21 is respectively connected to the first end of the resistor R22 and the CPU_POW_OUT interface, and the second end of the resistor R22 is grounded.

[0057] Operating Principle: When the power button on the keyboard is pressed, VCC_IN and KEY_POW_ON form a circuit, thus conducting T1. This activates the ON pin of IC2, which outputs 5V and temporarily powers the system chip. At this point, the system program starts, setting the CPU_POW_ON pin to a high-level push-pull output to complete the power supply setup. Releasing the button provides continuous power to the system chip. The emergency handheld device does not continuously power the vehicle service system controller. Only when the emergency handheld device needs to issue an operation command to the vehicle service system controller does it pre-set the CPU_POW_OUT pin to a high-level output, thereby supplying power to the vehicle service system controller via the VCC_OUT pin of Q2. When the emergency handheld device detects that the operation of the vehicle service system controller is complete, it resets the CPU_POW_OUT pin to a low-level output, shutting down the emergency handheld device and conserving power.

[0058] The power detection circuit includes a resistor R36 and a capacitor C1. The first end of the resistor R1 is connected to the VCC_IN interface, the second end of the resistor R1 is connected to the first end of the resistor R36 and the first end of the capacitor C1 respectively, and the second end of the resistor R36 and the second end of the capacitor C1 are grounded.

[0059] Working Principle: The emergency handheld device's temporary power supply uses a battery or power bank, making it essential to monitor the power level during use. The system program continuously monitors the power supply voltage. This voltage divider, formed by R1 and R36, sends a valid detection signal (BAT) to the microcontroller for real-time monitoring. If the system detects low power, it issues an alarm on the LCD screen.

[0060] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A car service system client terminal, comprising an automatic storage cabinet for storing car keys and an intelligent electronic control system for controlling the automatic storage cabinet, characterized in that: The automatic storage and retrieval cabinet comprises a bottom plate (1) and a combined cabinet body (2) arranged on the bottom plate (1); the combined cabinet body (2) is formed by connecting a plurality of baffles (2-1); an upper cover plate (3) is arranged on the top of the combined cabinet body (2); a plurality of regularly arranged drawer mounting openings (2-2) are provided on the front baffle (2-1); a drawer assembly is provided at the drawer mounting opening (2-2); the drawer assembly comprises a drawer (4) and a motor drive mechanism for controlling the automatic opening and closing of the drawer (4); the plurality of drawers The components are independently arranged. Each drawer (4) is provided with an outer frame (19) fixedly connected to the front baffle (2-1). The drawer (4) is slidably arranged in the outer frame (19) through guide rails (20) on both sides. A driving mechanism platform (11) is also provided at the inner end of the drawer installation opening (2-2). A connecting portion is provided on one side of the driving mechanism platform (11). The connecting portion is buckled on the outer frame (19). A notch (21) is formed on the side wall of the connecting portion parallel to the rear end of the drawer (4). The motor drive mechanism comprises a self-locking drive motor (5) and a guide rod (6), wherein the self-locking drive motor (5) is arranged below the drive mechanism platform (11), and the output shaft of the self-locking drive motor (5) passes through the drive mechanism platform (11) upwards, and a drive gear (7) is mounted on the output shaft, and the guide rod (6) is an L-shaped structure, consisting of a long rod and a short rod perpendicular to each other, the short rod being fixed to the rear end of the drawer (4), and a rack (8) being fitted on one side of the long rod, and the rack (8) being meshed with the drive gear (7); the self-locking drive motor (5) drives the rack (8) to move via the drive gear (7); at a distance relative to the long rod of the drive gear (7), the rack (8) is engaged with the drive gear (7); A locating bearing (9) is provided on the other side of the rod, the axis of the locating bearing (9) is provided in the vertical direction and is located on the upper end surface of the driving mechanism platform (11), the outer ring of the locating bearing (9) contacts the long rod, and the inner ring of the locating bearing (9) is sleeved on the mounting shaft on the driving mechanism platform (11). A travel switch assembly is also provided on the driving mechanism platform (11), the travel switch assembly includes two travel switches (10) and a trigger bar provided on the long rod. When the guide rod (6) moves along the length direction, the trigger bar moves between the two travel switches (10), and the trigger bar triggers the travel switch (10) and stops, thereby controlling the travel position of the drawer (4); The intelligent electronic control system is fixed on an electronic component board (12), the electronic component board (12) is located on the inner wall of the rear baffle (2-1), and the electronic component board (12) is fixedly connected to the baffle (2-1) via an adjustable frame (13), the adjustable frame (13) comprising two vertically arranged fixing plates, with a plurality of mounting holes evenly distributed along the length direction of the two fixing plates; the intelligent electronic control system comprises a controller and an emergency handheld device connected to the controller signal; The emergency handheld device comprises a battery pack (201), a CPU module (202), a power output module (203), a control circuit module (204), an LDO module (205), a terminal interface module (206), a communication interface module (207), a keyboard (208) and an LCD module (209). The power supply end of the battery pack (201) is electrically connected to the control circuit module (204), the output end of the control circuit module (204) is respectively connected to the power output module (203) and the LDO module (205), the output end of the power output module (203) is connected to the terminal interface module (206), the output end of the LDO module (205) is respectively connected to the communication interface module (207) and the CPU module (202), the signal output end of the CPU module (202) is connected to the LCD module (209), the communication interface module (207) and the control circuit module (204), and the signal output end of the keyboard (208) is respectively connected to the CPU module (202) and the control circuit module (204).

2. The automobile service system client terminal according to claim 1, characterized in that: The controller is mounted on the electronic component board (12), and includes a single-chip microcomputer (101), a position detection module (102), a motor drive module (103), a communication module (104), and a storage module (105); the position detection module (102) is used to obtain a real-time position signal of the drawer (4) and send the position signal to the single-chip microcomputer (101); the signal output end of the single-chip microcomputer (101) is connected to the motor drive module (103), and sends a control signal for starting or stopping the self-locking drive motor (5) to the motor drive module (103); the motor The drive module (103) is used to receive the control signal of the single-chip microcomputer (101) and control the opening and closing of the self-locking drive motor (5). The single-chip microcomputer (101) is respectively connected to the communication module (104) and the storage module (105) by signal. The communication module (104) is used to realize the communication connection between the single-chip microcomputer (101) and the system software, and receive the control instructions sent by the system software to control the opening and closing of the drawer (4) and feedback the opening and closing signal of the drawer (4) to the system software. The storage module (105) is used for storing the operation data of the single-chip microcomputer (101) when the power is off.

3. The automobile service system client terminal according to claim 2, characterized in that: The position detection module circuit includes an optocoupler U2, a resistor R2, a resistor R3, a capacitor C11, and a capacitor C12. Pin 1 of the optocoupler U2 is connected to the first end of the resistor R2, the second end of the resistor R2 is connected to the +12V power supply, a capacitor C11 is connected in parallel between pins 1 and 2 of the optocoupler U2, pin 2 of the optocoupler U2 is connected to the FeedBack_1 interface, the FeedBack_1 interface is connected to the first end of the travel switch (10), the second end of the travel switch (10) is grounded, pin 4 of the optocoupler U2 is respectively connected to the first end of the resistor R3 and the FBI detection interface of the single-chip computer (101), the second end of the resistor R3 is connected to the +5V power supply, a capacitor C12 is connected in parallel between pins 3 and 4 of the optocoupler U2, and pin 3 of the optocoupler U2 is grounded.

4. The automobile service system client terminal according to claim 2, wherein: The motor drive module circuit includes a motor drive chip U20, wherein the pin OA interface of the motor drive chip U20 is respectively connected to the first end of C49 and the OA_1 control interface of the self-locking drive motor (5), the OB interface of the U20 is respectively connected to the second end of C49 and the OB_1 control interface of the self-locking drive motor (5), the VCC interface of the motor drive chip U20 is connected to a +12V power supply, the GND interface of the motor drive chip U20 is grounded, the IA interface of the motor drive chip U20 is connected to the IA_1 control interface of the single-chip microcomputer (101), and the IB interface of the U20 is connected to the IB_1 control interface of the single-chip microcomputer (101).

5. The automobile service system client terminal according to claim 1, characterized in that: The controller power supply is provided by the mains electricity, which outputs a 12V DC voltage through the AC-DC module (107) to power the self-locking drive motor (5), and outputs a 5V voltage through the voltage stabilization and anti-pinch judgment module (108) to power the controller and the stroke detection circuit.

6. The automobile service system client terminal according to claim 5, characterized in that: The voltage stabilization and anti-pinch judgment module circuit includes a voltage stabilization chip IC1, a diode D6, a diode D7, a diode D8, a protection diode TVS1, a light-emitting diode LED1, a polarity capacitor CL1, a polarity capacitor CL5, a polarity capacitor C73, a capacitor C74, a resistor R56 and a resistor R77. The IN interface of the voltage stabilization chip IC1 is respectively connected to the cathode of the diode D8 and the anode of the polarity capacitor CL5, the anode of the diode D8 is respectively connected to the first end of the resistor R77 and the power supply V2, the second end of the resistor R77 is respectively connected to the cathode of the diode D6, the cathode of the diode D7, the power supply V1 and the anode of the polarity capacitor CL1, and the polarity capacitor The negative pole of CL1 is grounded, the positive pole of diode D6 is connected to the +12V main power supply, the positive pole of diode D7 is connected to the +12V power supply of the emergency handheld terminal, the OUT interface of the voltage regulator chip IC1 is respectively connected to the positive pole of polarity capacitor C73, the first end of capacitor C74, the negative pole of protection diode TVS1, the first end of resistor R56 and +5V power supply, the second end of resistor R56 is connected to the positive pole of light-emitting diode LED1, and the GND interface of voltage regulator chip IC1, the negative pole of polarity capacitor CL5, the negative pole of polarity capacitor C73, the second end of capacitor C74, the positive pole of protection diode TVS1 and the negative pole of light-emitting diode LED1 are connected to the ground.

7. The automobile service system client terminal according to claim 1, characterized in that: The control circuit module includes chip IC2, connector JP1, polarity capacitor C9, polarity capacitor C10, capacitor C27, diode D2, diode D3, diode D4, transistor T1, resistor R23 and resistor R38. The IN interface of chip IC2 is respectively connected to pin 1 of connector JP1, VCC_IN interface and the positive electrode of polarity capacitor C9. The OUT interface of chip IC2 is respectively connected to the positive electrode of polarity capacitor C10, the first end of capacitor C27 and +5V power supply. Pin 2 of connector JP1, the negative electrode of polarity capacitor C9, chip GND interface, the negative electrode of polarity capacitor C10 and the second end of capacitor C27 are connected to ground. The ON / OFF interface of chip IC2 is respectively connected to the cathode of diode D3, the cathode of diode D4 and the first end of R24, the second end of R24 is grounded, the anode of diode D4 is connected to the CPU_POW_ON interface, the anode of diode D3 is connected to the first end of resistor R38, the second end of resistor R38 is connected to the collector of transistor T1, the emitter of transistor T1 is connected to the VCC_IN interface, the base of transistor T1 is respectively connected to the first end of resistor R23 and the anode of diode D2, the second end of resistor R23 is connected to the VCC_IN interface, and the cathode of diode D2 is connected to the KEY_POW_ON interface.

8. The automobile service system client terminal according to claim 7, characterized in that: The communication interface module (207) adopts an RS232 interface.

9. The automobile service system client terminal according to claim 7, characterized in that: The terminal interface module (206) adopts a DB9 terminal interface.

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