Intelligent digital one-key start switch and control method

Abstract

This invention discloses an intelligent digital one-button start switch and control method, belonging to the field of automotive electronic component technology. Specifically, it includes a base; a housing fixedly connected to the base and forming a receiving cavity together with the base; a frame fixedly connected to the receiving cavity; a conductive rubber switch board; a power management board; an RF transceiver control board; and a remote communication board. The conductive rubber switch board, power management board, RF transceiver control board, and remote communication board are electrically connected. This invention, through the conductive rubber switch board, power management board, RF transceiver control board, and remote communication board distributed within the housing, achieves precise positioning and compact layout of each circuit board, significantly improving the utilization rate of internal space.

Description

Technical Field

[0001] This invention belongs to the field of automotive electronic components technology, specifically relating to an intelligent digital one-button start switch and its control method. Background Technology

[0002] The car keyless start switch is a core electronic control component in the vehicle that replaces the traditional mechanical key. Existing car keyless start switches mostly use a single circuit board to integrate all electrical functions, which has problems such as low space utilization, large electromagnetic interference, and unstable signal transmission.

[0003] Therefore, there is a need to provide an intelligent digital one-button start switch to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the problems mentioned in the background section, this invention provides an intelligent digital one-button start switch. This switch features precise positioning and compact layout of each circuit board, significantly improving internal space utilization. Simultaneously, it achieves physical isolation between the radio frequency module and the power module, effectively avoiding electromagnetic interference and enhancing signal transmission stability.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an intelligent digital one-button start switch, including a base;

[0006] A housing, which is fixedly connected to a base and together with the base forms a receiving cavity; A skeleton, which is fixedly connected to the receiving cavity, is used to divide the receiving cavity into multiple mutually isolated functional areas, including at least a first mounting area, a second mounting area and a third mounting area. A conductive rubber switch plate, wherein the conductive rubber switch plate is fixed in the first mounting area; A power management board, which is fixed in the second mounting area; The radio frequency transceiver control board and the remote communication board are both fixed in the third installation area; The conductive rubber switch board, power management board, radio frequency transceiver control board, and remote communication board are electrically connected.

[0007] Preferably, the conductive rubber switch plate is fixedly connected to the inner side of the frame, the power management board is fixedly connected to the outer side of the frame, and the conductive rubber switch plate and the power management board are arranged in parallel.

[0008] Preferably, the radio frequency transceiver control board and the remote communication board are symmetrically arranged on both sides of the power management board. The radio frequency transceiver control board and the remote communication board are both located in the gap between the frame and the housing, and the radio frequency transceiver control board and the remote communication board are both fixedly connected to the frame.

[0009] Preferably, the conductive rubber switch board integrates a conductive rubber switch, a status indicator LED, and a backlight display LED. The status indicator LED and the backlight display LED are both connected to the radio frequency transceiver control board via bidirectional electrical signals. The conductive rubber switch serves as the trigger for vehicle function commands.

[0010] Preferably, the power management board integrates the system power management circuit, the door lock drive power module, the system wake-up high-side switch, and the electrical input / output connection terminals. The electrical input / output connection terminals pass through the base and are connected to the vehicle wiring harness.

[0011] Preferably, the radio frequency transceiver control board integrates a Bluetooth function chip, an NFC function chip, a radio frequency transceiver circuit, a 32-bit microprocessor, an FPC connector, and a CAN communication circuit. The 32-bit microprocessor is electrically connected to the Bluetooth function chip, the NFC function chip, the radio frequency transceiver circuit, and the CAN communication circuit. The radio frequency transceiver control board is also provided with an NFC antenna interface and a Bluetooth antenna interface.

[0012] Preferably, the remote communication board integrates a 4G module, a positioning module, an FPC antenna, and a miniature connector. The 4G module and the positioning module are both electrically connected to the FPC antenna, and the 4G module, the positioning module, the FPC antenna, and the radio frequency transceiver control board all achieve bidirectional electrical signal interaction.

[0013] Preferably, the end of the housing away from the base has a button mounting through hole, a single button is adapted to pass through the button mounting through hole, one end of the single button extends into the receiving cavity and abuts against a button actuator, and the end of the button actuator away from the single button abuts coaxially with a conductive rubber switch on the conductive rubber switch plate.

[0014] A control method based on the intelligent digital one-button start switch according to any one of claims 1-8, comprising the following steps: S1. When a user carrying a valid identity certificate approaches the vehicle, the radio frequency transceiver control board receives and verifies the authentication signal. After successful verification, it sends an unlocking command to the power management board, drives the door lock actuator to unlock, and wakes up the vehicle's electronic control system. S2. When the user presses the single button, the pressing force triggers the conductive rubber switch via a mechanical link. The button signal is processed by the radio frequency transceiver control board and then sent to the vehicle power-on or power-off command via the CAN bus. At the same time, the status indicator and backlight display are controlled. S3. When a user sends a remote vehicle control command via a mobile terminal, the command is received by the remote communication board via the 4G network and forwarded to the radio frequency transceiver control board, thereby controlling the power management board to perform remote unlocking or remote wake-up; at the same time, the vehicle positioning information is collected by the positioning module and transmitted back to the mobile terminal via the remote communication board. S4. The radio frequency transceiver control board collects vehicle operation data through the CAN bus, identifies faults or illegal intrusions, and uploads the corresponding information to the mobile terminal through the remote communication board.

[0015] Preferably, the legitimate identity credential is a Bluetooth digital key or an NFC card; the mobile terminal is a mobile app; and the authentication signal is received through a Bluetooth or NFC chip and a corresponding flexible FPC antenna.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves precise positioning and compact layout of each circuit board by distributing conductive rubber switch boards, power management boards, radio frequency transceiver control boards and remote communication boards within the housing, thereby significantly improving the utilization rate of internal space.

[0017] 2. This invention physically isolates the power management board from the radio frequency transceiver control board and the remote communication board through a skeleton, thereby separating the power circuit and the radio frequency circuit in space. This effectively suppresses electromagnetic interference from the power circuit to the radio frequency circuit, improves the transmission stability of the radio frequency signal and the reliability of the vehicle's keyless entry function. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional dual structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention; In the diagram: 1. Base; 2. Housing; 3. Receiving cavity; 4. Frame; 5. Conductive rubber switch board; 6. Power management board; 7. RF transceiver control board; 8. Remote communication board; 9. Single button. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1 Please see Figure 1-3 This embodiment provides the following technical solution: an intelligent digital one-button start switch, including a base 1, one end of which is fixedly connected to a housing 2 by a snap-fit ​​connection. A sealing ring is provided at the connection surface between the base 1 and the housing 2. The housing 2 is provided with a receiving cavity 3, and a hollow frame 4 is fixedly connected to the receiving cavity 3 by an interference fit. The frame 4 is snapped to the inner wall of the housing 2 by positioning ribs, serving as the mounting base for each circuit board, ensuring the accuracy of the layout and the stability of the structure. The frame 4 divides the receiving cavity 3 into multiple mutually isolated functional areas, specifically including a first mounting area, a second mounting area, and a third mounting area.

[0021] The frame 4 is equipped with a conductive rubber switch board 5, a power management board 6, an RF transceiver control board 7, and a remote communication board 8. The boards are electrically connected to each other through FPC connectors and wires. The conductive rubber switch board 5, power management board 6, RF transceiver control board 7, and remote communication board 8 distributed in the housing 2 achieve precise positioning and compact layout of each circuit board, which greatly improves the utilization of internal space. At the same time, it achieves physical isolation between the RF module and the power module, effectively avoids electromagnetic interference, and improves the stability of signal transmission.

[0022] The conductive rubber switch plate 5 is fixedly connected to the inner side of the frame 4 (at the end near the single button 9) and is located in the first installation area to receive the user's button trigger signal. The power management board 6 is fixedly connected to the outside of the frame 4 (at one end near the base 1) and located in the second mounting area. It is used to perform power drive and power management functions. The conductive rubber switch plate 5 is arranged parallel to the power management board 6. The RF transceiver control board 7 and the remote communication board 8 are symmetrically arranged on both sides of the power management board 6, both located within the gap between the frame 4 and the housing 2, i.e., within the third mounting area, and are used to realize wireless communication and data processing functions. Both the RF transceiver control board 7 and the remote communication board 8 are fixedly connected to the frame 4.

[0023] Through the above layout, the second installation area (power area) and the third installation area (RF area) are physically separated by the skeleton 4, so that the power management board 6, the RF transceiver control board 7, and the remote communication board 8 are spatially separated. This not only effectively suppresses the electromagnetic interference of the power circuit to the RF circuit, but also allows the whole vehicle system function commands to be triggered by a single button operation, so as to complete the whole vehicle's contactless keyless entry, system power-on and power-off, fault diagnosis, anti-theft monitoring, and car ambient lighting control.

[0024] The conductive rubber switch board 5 integrates a conductive rubber switch, a status indicator LED, and a backlight LED. The conductive rubber switch is the trigger terminal for the vehicle's function commands. The status indicator LED is used to display the working status of the vehicle and the switch. The backlight LED is used to provide backlight illumination for the buttons. Both the status indicator LED and the backlight LED are connected to the radio frequency transceiver control board 7 via bidirectional electrical signals.

[0025] A button mounting through hole is provided at the end of the housing 2 away from the base 1. A single button 9 is fitted through the button mounting through hole. The single button 9 is a light-transmitting plastic structure and is coaxially aligned with the status indicator LED and the backlight display LED to achieve light transmission and visual display. The end of the single button 9 extending into the receiving cavity 3 abuts against a button actuator. The button actuator is a rigid injection molded structure. The end of the button actuator away from the single button 9 abuts coaxially with the conductive rubber switch on the conductive rubber switch plate 5. The frame 4 is provided with a guide groove, and the button actuator can be slidably accommodated in the guide groove. This ensures that the pressing is always vertical. The abutting end of the button actuator and the conductive rubber switch is provided with an arc transition surface to avoid scratching the conductive rubber switch during pressing, while ensuring accurate transmission of pressing force. This forms a linear mechanical triggering link of "single button 9 → button actuator → conductive rubber switch". Pressing the single button 9 can trigger the conductive rubber switch through this link and output the vehicle function command.

[0026] The RF transceiver control board 7 integrates a Bluetooth chip, an NFC chip, an RF transceiver circuit, a 32-bit microprocessor, an FPC connector, and a CAN communication circuit. The 32-bit microprocessor is electrically connected to the Bluetooth chip, NFC chip, RF transceiver circuit, and CAN communication circuit, and is the core control unit of the switch, responsible for the calculation, processing, and command issuance of all signals. The RF transceiver control board 7 also has an NFC antenna interface and a Bluetooth antenna interface. The NFC antenna interface is connected to an external NFC flexible FPC antenna, and the Bluetooth antenna interface is connected to an external Bluetooth flexible FPC antenna. Both the NFC and Bluetooth flexible FPC antennas are arranged in the gap between the frame 4 and the housing 2, and are physically isolated from the power management board 6 to avoid electromagnetic interference between the power signal and the RF signal. The Bluetooth chip and the NFC chip work together to realize near-field identity authentication of Bluetooth digital keys and NFC cards, completing the vehicle's contactless keyless entry function.

[0027] The remote communication board 8 integrates a 4G module, a positioning module, an FPC antenna, and a miniature connector. Both the 4G module and the positioning module are electrically connected to the FPC antenna. The 4G module uses an LTE Cat.1 communication module to realize bidirectional transmission and reception of remote vehicle control signals and vehicle status data. The positioning module uses a GNSS dual-mode positioning module to collect real-time vehicle location information. Both the 4G module and the positioning module interact bidirectionally with the 32-bit microprocessor of the radio frequency transceiver control board 7 to complete the reception of remote vehicle control commands, the uploading of positioning data, and the remote push of vehicle fault information, thereby realizing remote monitoring and control of the vehicle.

[0028] The power management board 6 integrates a system power management circuit, a door lock drive power module, a system wake-up high-side switch, and electrical input / output connection terminals. The system power management circuit provides a 9-36V wide voltage regulated power supply for all power modules of this switch, adapting to the low-voltage power requirements of the vehicle. The door lock drive power module is a high-power MOSFET drive module used to drive the vehicle door lock actuator to complete the unlocking / locking action. The system wake-up high-side switch is a low-power MOSFET switch structure used to receive wake-up signals and trigger the start of the vehicle's electronic control system.

[0029] Electrical input / output connection terminals are installed through the base 1 along its axial direction. Their outer ends are used to connect electrically to the vehicle wiring harness. The electrical input / output connection terminals are standardized automotive 2.54mm pitch multi-pin terminals, including power input terminals, CAN communication terminals, and load drive terminals. The power input terminals are electrically connected to the vehicle's 12V low-voltage power supply to power the system. The CAN communication terminals are electrically connected to the vehicle's CAN bus to realize vehicle signal interaction. The load drive terminals are electrically connected to the vehicle's door lock actuator and the automotive ambient light to realize door lock control and ambient light adjustment.

[0030] Example 2 Based on the above switch structure, this embodiment provides its working process and corresponding control method: S1. When a user approaches the vehicle with a Bluetooth digital key or NFC card, the Bluetooth and NFC chips receive the authentication signal through the corresponding flexible FPC antenna and transmit it to the 32-bit microprocessor via the radio frequency transceiver circuit. After the 32-bit microprocessor completes the encryption verification, it sends an unlocking command to the power management board 6. The door lock drive power module drives the vehicle door lock actuator to unlock. At the same time, the system wakes up the high-side switch to trigger the vehicle's electronic control system to enter standby mode, realizing contactless and keyless entry. S2. When the user presses the single button 9, the pressing force is transmitted to the conductive rubber switch through the button actuator, triggering the conductive rubber switch to conduct. The button signal is transmitted to the 32-bit microprocessor through the FPC connector. After processing, the 32-bit microprocessor interacts with the vehicle's CAN bus through the CAN communication circuit to send the vehicle's power-on / power-off command to complete the vehicle's start / stop. At the same time, the 32-bit microprocessor controls the status indicator LED to display the corresponding working status, and the backlight LED illuminates to realize the button backlight. S3. The user sends a remote vehicle control command via a mobile APP, which is transmitted to the 4G module via the 4G network. The 4G module then transmits the command to the 32-bit microprocessor, which sends control commands to the power management board 6 to enable functions such as remote unlocking and remote wake-up. At the same time, the positioning module collects the vehicle's location information in real time, which is processed by the 32-bit microprocessor and then uploaded to the mobile APP via the 4G module to achieve real-time vehicle positioning. The S4, 32-bit microprocessor collects vehicle operating parameters in real time via the vehicle's CAN bus, identifies system faults and unauthorized entry, and uploads fault data and anti-theft information to a mobile app via a 4G module for remote fault diagnosis and anti-theft monitoring. At the same time, the 32-bit microprocessor can send control commands through the load drive terminal to adjust the brightness and mode of the car's ambient lighting.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intelligent digital one-button start switch, characterized in that: Including the base (1); The shell (2) is fixedly connected to the base (1) and together with the base (1) forms a receiving cavity (3); The skeleton (4) is fixedly connected to the receiving cavity (3) and is used to divide the receiving cavity (3) into multiple mutually isolated functional areas, including at least a first installation area, a second installation area and a third installation area; Conductive rubber switch plate (5), the conductive rubber switch plate (5) is fixed in the first mounting area; Power management board (6), the power management board (6) is fixed in the second mounting area; Radio frequency transceiver control board (7) and remote communication board (8) are both fixed in the third installation area; The conductive rubber switch board (5), power management board (6), radio frequency transceiver control board (7) and remote communication board (8) are electrically connected.

2. The intelligent digital one-button start switch according to claim 1, characterized in that: The conductive rubber switch plate (5) is fixedly connected to the inner side of the frame (4), and the power management board (6) is fixedly connected to the outer side of the frame (4), and the conductive rubber switch plate (5) and the power management board (6) are arranged in parallel.

3. The intelligent digital one-button start switch according to claim 1, characterized in that: The radio frequency transceiver control board (7) and the remote communication board (8) are symmetrically arranged on both sides of the power management board (6). The radio frequency transceiver control board (7) and the remote communication board (8) are both located in the gap between the frame (4) and the housing (2), and the radio frequency transceiver control board (7) and the remote communication board (8) are both fixedly connected to the frame (4).

4. The intelligent digital one-button start switch according to claim 2, characterized in that: The conductive rubber switch board (5) integrates a conductive rubber switch, a status indicator LED, and a backlight display LED. The status indicator LED and the backlight display LED are connected to the radio frequency transceiver control board (7) via bidirectional electrical signals. The conductive rubber switch is the trigger terminal for the vehicle's function commands.

5. The intelligent digital one-button start switch according to claim 2, characterized in that: The power management board (6) integrates the system power management circuit, the door lock drive power module, the system wake-up high-side switch, and the electrical input / output connection terminal. The electrical input / output connection terminal passes through the base (1) and is connected to the vehicle wiring harness.

6. The intelligent digital one-button start switch according to claim 3, characterized in that: The radio frequency transceiver control board (7) integrates a Bluetooth function chip, an NFC function chip, a radio frequency transceiver circuit, a 32-bit microprocessor, an FPC connector, and a CAN communication circuit. The 32-bit microprocessor is electrically connected to the Bluetooth function chip, the NFC function chip, the radio frequency transceiver circuit, and the CAN communication circuit. The radio frequency transceiver control board (7) is also provided with an NFC antenna interface and a Bluetooth antenna interface.

7. The intelligent digital one-button start switch according to claim 3, characterized in that: The remote communication board (8) integrates a 4G module, a positioning module, an FPC antenna and a miniature connector. The 4G module and the positioning module are electrically connected to the FPC antenna. The 4G module, the positioning module and the FPC antenna and the radio frequency transceiver control board (7) achieve bidirectional electrical signal interaction.

8. The intelligent digital one-button start switch according to claim 1, characterized in that: The housing (2) has a button mounting through hole at one end away from the base (1). A single button (9) is fitted through the button mounting through hole. One end of the single button (9) extends into the receiving cavity (3) and abuts against a button actuator. The end of the button actuator away from the single button (9) abuts against a conductive rubber switch on the conductive rubber switch plate (5).

9. A control method based on the intelligent digital one-button start switch according to any one of claims 1-8, characterized in that, Includes the following steps: S1. When a user carrying a valid identity certificate approaches the vehicle, the radio frequency transceiver control board (7) receives and verifies the authentication signal. After the verification is successful, it sends an unlocking command to the power management board (6) to drive the door lock actuator to unlock and wake up the vehicle's electronic control system. S2. When the user presses the single button (9), the pressing force triggers the conductive rubber switch through the mechanical link. The button signal is processed by the radio frequency transceiver control board (7) and then sent to the vehicle power-on or power-off command via the CAN bus. At the same time, the status indicator and backlight display are controlled. S3. When a user sends a remote vehicle control command through a mobile terminal, the command is received by the remote communication board (8) via the 4G network and forwarded to the radio frequency transceiver control board (7), thereby controlling the power management board (6) to perform remote unlocking or remote wake-up; at the same time, the vehicle positioning information is collected by the positioning module and transmitted back to the mobile terminal via the remote communication board (8); S4. The radio frequency transceiver control board (7) collects vehicle operation data through the CAN bus, identifies faults or illegal intrusion behaviors, and uploads the corresponding information to the mobile terminal through the remote communication board (8).

10. The control method for an intelligent digital one-button start switch according to claim 9, characterized in that: The legitimate identity credential is a Bluetooth digital key or an NFC card; the mobile terminal is a mobile app; and the authentication signal is received through a Bluetooth or NFC chip and a corresponding flexible FPC antenna.

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