Parking space lock communication networking device and parking space lock

Abstract

The utility model discloses a parking space lock communication networking device which comprises a plurality of communication module interfaces arranged on a parking space lock main control board and a plurality of replaceable communication modules supporting different communication links. The plurality of communication module interfaces are used for leading out communication signals of the parking lock main control unit to the at least one replaceable communication module and controlling power supply of the replaceable communication module; the replaceable communication module is used for providing different communication link interfaces for the parking space lock. The parking space lock mainboard is provided with a plurality of communication module interfaces, and the plurality of communication module interfaces support the access of replaceable communication modules of different communication links and also support the access of a plurality of replaceable communication modules, so that the main control of the parking space lock mainboard can be replaced with the replaceable communication modules, and the replacement of the replaceable communication modules is facilitated. Different communication modes are used for switching signal interaction of the plurality of replaceable communication modules, different network environments are flexibly selected, a single networking mode or a multi-module networking mode is selected, and the flexibility and stability of equipment connection are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of parking lot Internet of Things, and specifically relates to a parking lock communication networking device and a parking lock. Background Art

[0002] Parking locks enable intelligent control by connecting to the internet. Existing parking locks have a limited networking method. The supported networking mode is fixed at the factory and cannot be adjusted later. With the development of IoT technology and the increasing application scenarios for parking locks, a single communication networking method has limited installation flexibility and stability, and is no longer suitable for various network environments and scenarios. Utility Model Content

[0003] The purpose of the present invention is to address the defects and shortcomings of the existing technology and provide a parking lock communication networking device and a parking lock, which are applied to the network communication of the parking lock and can enable the parking lock to flexibly select a single networking mode or a multi-mode networking mode to ensure the stability of the device connection.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A parking lock communication networking device includes multiple communication module interfaces provided on a parking lock main control board, and multiple replaceable communication modules supporting different communication links;

[0006] The multiple communication module interfaces are used to lead the communication signal of the parking lock main control unit to at least one of the replaceable communication modules and control the power supply of the replaceable communication module;

[0007] The replaceable communication module is used to provide different communication link interfaces for the parking lock.

[0008] Optionally, the multiple communication module interfaces include a module power supply control circuit, a module power output port, a mainboard communication signal A port, a mainboard communication signal B port, and a ground port;

[0009] The module power supply control circuit receives the power output of the power supply conversion circuit in the parking lock main control board, and outputs power to the module power output port according to the control of the parking lock main control unit;

[0010] The mainboard communication signal A port and the mainboard communication signal B port are respectively connected to the communication signal receiving and sending pins of the parking lock main control unit;

[0011] The ground port is connected to the ground pin of the parking lock main control unit.

[0012] Optionally, the replaceable communication module includes a power port, a mainboard communication signal A docking port, a mainboard communication signal B docking port, a grounding port, a module main control power supply circuit, a module main control unit, a module signal communication circuit and a module signal communication port;

[0013] The power port is used to connect to the module power output port of the parking lock main control board, the mainboard communication signal A docking port is used to connect to the mainboard communication signal A port of the parking lock main control board, the mainboard communication signal B docking port is used to connect to the mainboard communication signal B port of the parking lock main control board, and the ground port is used to connect to the ground port of the parking lock main control board;

[0014] The module main control power supply circuit is connected to the power port and the module main control unit, and is used to convert the power obtained by the power port into a voltage and provide it to the module main control unit;

[0015] The module main control unit is connected to the mainboard communication signal A docking port, the mainboard communication signal B docking port and the module signal communication circuit, and is used to receive the communication signal sent by the parking lock main control unit in the parking lock main control board and transmit it to the module signal communication circuit, and receive the communication signal sent by the module signal communication circuit and transmit it to the parking lock main control unit in the parking lock main control board;

[0016] The module signal communication circuit is used to access an external network through the module signal communication port.

[0017] Optionally, the module signal communication circuit is a 433MHz radio frequency module circuit.

[0018] Optionally, the module signal communication circuit is a Bluetooth module circuit.

[0019] Optionally, the module signal communication circuit is an RS485 communication circuit.

[0020] Optionally, the module signal communication circuit is an NBIOT module circuit.

[0021] Optionally, the module signal communication circuit is a 4G module circuit.

[0022] Optionally, the module power supply control circuit includes a first switch tube, a second switch tube, a third switch tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a fifth capacitor. The source of the first switch tube receives the power output of the power supply conversion circuit in the parking lock main control board as the positive end of the power supply input and is grounded through the first capacitor. The first resistor and the second capacitor are connected in parallel between the source and the gate of the first switch tube. The gate of the first switch tube is connected to the drain of the second switch tube through the second resistor. The gate of the first switch tube is connected to the drain of the second switch tube through the third A resistor is connected to the gate of the third switching tube. The drain of the first switching tube serves as a positive power output terminal to provide power to the replaceable communication module and is connected to the drain of the third switching tube via the fourth resistor. The fourth capacitor and the fifth capacitor are connected in parallel between the drain of the first switching tube and ground. The gate of the second switching tube is connected to the power supply control terminal of the parking lock main control unit via the fifth resistor. The source of the second switching tube is grounded. The sixth resistor and the third capacitor are connected in parallel between the gate and source of the second switching tube. The source of the third switching tube is grounded. The first switching tube is a PMOS tube, and the second and third switching tubes are both NMOS tubes.

[0023] A parking lock comprises the parking lock communication networking device described in the above items.

[0024] After adopting the above technical solution, the beneficial effects of the utility model are:

[0025] Since the parking lock mainboard has multiple communication module interfaces, multiple communication module interfaces support access to replaceable communication modules with different communication links, and also support access to multiple replaceable communication modules. The parking lock mainboard master control can use different communication methods by replacing the replaceable communication modules and switching the signal interactions of multiple replaceable communication modules, flexibly select different network environments, and choose a single networking method or a multi-module networking method to ensure the flexibility and stability of device connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 Schematic diagram of the main control board structure of a parking lock in some embodiments;

[0028] Figure 2 is a schematic diagram of the structure of replaceable communication modules in some embodiments;

[0029] Figure 3 is a schematic diagram of the circuit principle of a 433 MHz radio frequency module in some embodiments;

[0030] Figure 4 is a schematic diagram of the circuit principle of a Bluetooth module in some embodiments;

[0031] Figure 5 Schematic diagram of the power supply control circuit principle of some modules of the embodiments.

[0032] Description of reference numerals:

[0033] 100. Parking lock main control board; 110. Parking lock main control unit; 120. Communication module interface; 121. Module power supply control circuit; 122. Module power output port; 123. Mainboard communication signal A port; 124. Mainboard communication signal B port; 125. Ground port; 130. Power supply conversion circuit; 140. Motor drive control circuit; 150. Power supply terminal; 160. Motor positive terminal; 170. Motor negative terminal; 180. Ground terminal; 200. Replaceable communication module; 210. Power port; 220. Mainboard communication signal A docking port; 230. Mainboard communication signal B docking port; 240. Ground port; 250. Module main control power supply circuit; 260. Module main control unit; 270. Module signal communication circuit; 280. Module signal communication port. DETAILED DESCRIPTION

[0034] The present invention will be described in further detail below with reference to the accompanying drawings.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0036] This embodiment relates to a parking lock communication networking device, which is applied to the network communication of the parking lock. It can enable the parking lock to flexibly select a single networking mode or a multi-mode networking mode to ensure the stability of the device connection.

[0037] Reference Figure 1 and Figure 2 As shown, a parking lock communication networking device includes: multiple communication module interfaces 120 provided on the parking lock main control board 100, and multiple replaceable communication modules 200 supporting different communication links. The multiple communication module interfaces 120 are used to output communication signals from the parking lock main control unit 110 to at least one replaceable communication module 200 and control the power supply of the replaceable communication module 200. The replaceable communication module 200 is used to provide different communication link interfaces for the parking lock.

[0038] In the specific implementation, since there are multiple communication module interfaces 100 on the parking lock main board 100, after connecting to different replaceable communication modules 200 and module signal communication lines, the main control of the parking lock main board 100 can determine the communication method to be used through signal interaction with the replaceable communication module 200, and automatically select a single networking method or a multi-module networking method to ensure the flexibility and stability of the device connection.

[0039] In some embodiments, reference Figure 1 Two communication module interfaces 120 are provided on the mainboard. In other embodiments, the number of communication module interfaces 120 can be set as needed, provided that there is one or more. The communication module interface 120 includes a module power supply control circuit 121, a module power output port 122, a mainboard communication signal A port 123, a mainboard communication signal B port 124, and a ground port 125. The module power supply control circuit 121 receives the power output from the power conversion circuit 130 in the parking lock main control board 100 and outputs power to the module power output port 122 according to the control of the parking lock main control unit 110. The mainboard communication signal A port 123 and the mainboard communication signal B port 124 are respectively connected to the communication signal receiving and sending pins of the parking lock main control unit 110. The ground port 125 is connected to the ground pin of the parking lock main control unit.

[0040] In a specific implementation, the communication signals sent and received by the parking lock main control unit 110 are transmitted to the replaceable communication module 200 through the communication module interface 120 in a transparent manner.

[0041] In some embodiments, reference Figure 2The replaceable communication module 200 includes a power port 210, a mainboard communication signal A docking port 220, a mainboard communication signal B docking port 230, a ground port 240, a module main control power supply circuit 250, a module main control unit 260, a module signal communication circuit 270, and a module signal communication port 280. The power port 210 is used to connect to the module power output port 122 of the parking lock main control board 100, the mainboard communication signal A docking port 220 is used to connect to the mainboard communication signal A port 123 of the parking lock main control board 100, the mainboard communication signal B docking port 230 is used to connect to the mainboard communication signal B port 124 of the parking lock main control board 100, and the ground port 240 is used to connect to the ground port 125 of the parking lock main control board 100. The module main control power supply circuit 250 is connected to the power port 210 and the module main control unit 260, and is used to convert the power received by the power port 210 into a voltage and provide it to the module main control unit 260. The module main control unit 260 is connected to the mainboard communication signal A docking port 220, the mainboard communication signal B docking port 230, and the module signal communication circuit 270. It is used to receive communication signals sent by the parking lock main control unit 110 of the parking lock main control board 100 and transmit them to the module signal communication circuit 270, and receive communication signals sent by the module signal communication circuit 270 and transmit them to the parking lock main control unit 110 of the parking lock main control board 100. The module signal communication circuit 270 is used to access an external network through the module signal communication port 280.

[0042] In the embodiment of the present invention, a modular approach is adopted, and different replaceable communication modules 200 have the same port form, which is convenient for flexible docking with the communication module interface 120 of the parking lock main control board 100, thereby selecting different communication network access.

[0043] In some embodiments, the module signal communication circuit is a 433 MHz radio frequency module circuit.

[0044] As an example, see Figure 3The main component of the 433MHz RF module circuit is the 433MHz RF control chip U1. The antenna port is connected to the antenna pin ANT of the 433MHz RF control chip U1 via an anti-static ESD diode and a Pi-type filter circuit. The module's main control power supply circuit 250 sends data to the 433MHz RF control chip U1 via the 433M_TX pin and receives data from the 433MHz RF control chip U1 via the 433M_RX pin. The clock is set via the 433M_SWCLK pin, the communication mode is set via the 433M_SWDIO pin, the reset is set via the PB12_433M_RESET pin, and the sleep and wake-up modes are set via the PC4_433M_ACK and PC4_433M_INT pins. The antenna port can be connected to the module's signal communication port 280, enabling networking via 433MHz wireless signals.

[0045] In some embodiments, the module signal communication circuit is a Bluetooth module circuit.

[0046] As an example, see Figure 4 The main component of the Bluetooth module circuit is the Bluetooth control chip U2. The module's main control power supply circuit 250 sends data to the Bluetooth control chip U2 via the PA2_USART2_TX_BT pin and receives data from the Bluetooth control chip U2 via the PA2_USART2_RX_BT pin. The clock is set via the JTAG_TCK_BT pin, the communication mode is set via the JTAG_TMS_BT pin, the reset is set via the PB13_BT_RESET pin, and sleep and wakeup are set via the BP7_BT_ACK pin and the BP6_BT_INT pin. The Bluetooth module circuit uses Bluetooth wireless signals for networking.

[0047] In some embodiments, the module signal communication circuit is an RS485 communication circuit, which can be networked via an RS485 network.

[0048] In some embodiments, the module signal communication circuit is an NBIOT module circuit, which can be networked through an NBIOT network.

[0049] In some embodiments, the module signal communication circuit is a 4G module circuit and can be networked through a 4G network.

[0050] In some embodiments, see Figure 5The module power supply control circuit 121 provided in the multiple communication module interfaces 120 of the parking lock main control board 100 includes a first switch tube Q1, a second switch tube Q2, a third switch tube Q3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5. The source of the first switch tube Q1 serves as the positive power input terminal VCC_SYS to receive the power output of the power conversion circuit 130 in the parking lock main control board 100 and is grounded through the first capacitor C1. A first resistor R1 and a second capacitor C2 are connected in parallel between the source and gate of the first switch tube Q1. The gate of the first switch tube Q1 is connected to the second switch via the second resistor R2. The drain of the first switching tube Q2 is connected to the gate of the third switching tube Q3 via the third resistor R3. The drain of the first switching tube Q1 serves as the positive power output terminal VCC_USS to provide power to the replaceable communication module and is connected to the drain of the third switching tube Q3 via the fourth resistor R4. A fourth capacitor C4 and a fifth capacitor C5 are connected in parallel between the drain of the first switching tube Q1 and ground. The gate of the second switching tube Q2 is connected to the power supply control terminal PW_EN of the parking lock main control unit 110 via the fifth resistor R5. The source of the second switching tube Q2 is grounded. A sixth resistor R6 and a third capacitor C3 are connected in parallel between the gate and source of the second switching tube Q2. The source of the third switching tube Q3 is grounded. The first switching tube Q1 is a PMOS tube, and the second switching tube Q2 and the third switching tube Q3 are both NMOS tubes.

[0051] The parking lock main control unit 110 selects and enables different replaceable communication modules 200 by controlling the levels of the multiple power supply control terminals PW_EN.

[0052] When a high-level signal is input to the power control terminal PW_EN of the parking lock master control unit 110, the second switch Q2 turns on. The voltage difference between the source and gate of the first switch Q1 exceeds the turn-on voltage, turning on the first switch Q1 and supplying power to the replaceable communication module 200 via the power control unit. At this point, the voltage difference between the gate and source of the third switch Q3 is insufficient to reach the turn-on voltage, turning off the third switch Q3. The first, second, and third capacitors C1, C2, and C3 in the circuit filter out interference, while the fourth and fifth capacitors C4 and C5 provide voltage regulation. The first, second, third, fifth, and sixth resistors R1, R2, R3, R5, and R6 establish the turn-on voltages of each switch and limit the current in the branch circuit.

[0053] When a low-level signal is input to the power supply control terminal PW_EN of the parking lock main control unit 110, the second switch tube Q2 is turned off, the gate of the first switch tube Q1 and the gate of the third switch tube Q3 are both at a high level, the first switch tube Q1 is turned off, and the power supply control unit stops supplying power to the replaceable communication module 200. At this time, the third switch tube Q3 is turned on, and the charges in the fourth capacitor C4 and the fifth capacitor C5 can be quickly discharged through the fourth resistor R4, causing the replaceable communication module 200 connected at the rear end to quickly lose power and enter the shutdown state.

[0054] This embodiment also relates to a parking lock, which includes the parking lock communication networking device involved in the above embodiment.

[0055] Specifically, the parking lock includes a power supply, a lock body with a motor, a parking lock main control board 100 and a plurality of replaceable communication modules 200 .

[0056] See also Figure 1 The parking lock main control board 100 includes a parking lock main control unit 110, multiple communication module interfaces 120, a power conversion circuit 130, a motor drive control circuit 140, a power supply terminal 150, a motor positive terminal 160, a motor negative terminal 170, and a ground terminal 180. Power is connected to the parking lock main control board 100 via the power supply terminal 150. The power conversion circuit 130 converts the power into an appropriate voltage and supplies it to the parking lock main control unit 110 and the multiple communication module interfaces 120. The two motor control signals emitted by the parking lock main control unit 110 are converted into two motor drive signals by the motor drive control circuit 140. These signals are then connected to the motor on the lock body via the motor positive terminal 160 and the motor negative terminal 170, thereby controlling the rotation of the lock body motor.

[0057] See also Figure 2 The multiple replaceable communication modules 200 have different module signal communication circuits, such as 433MHz radio frequency, Bluetooth, RS485, NBIOT and 4G, etc., which can be networked with different communication networks respectively.

[0058] Multiple interchangeable communication modules 200 are connected via the multiple communication module interfaces 120 in the parking lock main control unit 100. The parking lock main control unit 100 controls the power supply to the multiple communication module interfaces 120 to determine whether they are enabled or not. This allows the parking lock to flexibly select a single or multi-module networking mode, ensuring stable device connectivity.

[0059] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A parking lock communication networking device, characterized in that: It includes multiple communication module interfaces provided on the parking lock main control board, and multiple replaceable communication modules supporting different communication links; The multiple communication module interfaces are used to lead the communication signal of the parking lock main control unit to at least one of the replaceable communication modules and control the power supply of the replaceable communication module; The replaceable communication module is used to provide different communication link interfaces for the parking lock.

2. A parking lock communication networking device according to claim 1, characterized in that: The multiple communication module interfaces include a module power supply control circuit, a module power output port, a mainboard communication signal A port, a mainboard communication signal B port, and a ground port; The module power supply control circuit receives the power output of the power supply conversion circuit in the parking lock main control board, and outputs power to the module power output port according to the control of the parking lock main control unit; The mainboard communication signal A port and the mainboard communication signal B port are respectively connected to the communication signal receiving and sending pins of the parking lock main control unit; The ground port is connected to the ground pin of the parking lock main control unit.

3. A parking lock communication networking device according to claim 2, characterized in that: The replaceable communication module includes a power port, a mainboard communication signal A docking port, a mainboard communication signal B docking port, a grounding port, a module main control power supply circuit, a module main control unit, a module signal communication circuit and a module signal communication port; The power port is used to connect to the module power output port of the parking lock main control board, the mainboard communication signal A docking port is used to connect to the mainboard communication signal A port of the parking lock main control board, the mainboard communication signal B docking port is used to connect to the mainboard communication signal B port of the parking lock main control board, and the ground port is used to connect to the ground port of the parking lock main control board; The module main control power supply circuit is connected to the power port and the module main control unit, and is used to convert the power obtained by the power port into a voltage and provide it to the module main control unit; The module main control unit is connected to the mainboard communication signal A docking port, the mainboard communication signal B docking port and the module signal communication circuit, and is used to receive the communication signal sent by the parking lock main control unit in the parking lock main control board and transmit it to the module signal communication circuit, and receive the communication signal sent by the module signal communication circuit and transmit it to the parking lock main control unit in the parking lock main control board; The module signal communication circuit is used to access an external network through the module signal communication port.

4. A parking lock communication networking device according to claim 3, characterized in that: The module signal communication circuit is a 433MHz radio frequency module circuit.

5. The parking lock communication networking device according to claim 3, characterized in that: The module signal communication circuit is a Bluetooth module circuit.

6. The parking lock communication networking device according to claim 3, characterized in that: The module signal communication circuit is an RS485 communication circuit.

7. The parking lock communication networking device according to claim 3, characterized in that: The module signal communication circuit is an NBIOT module circuit.

8. The parking lock communication networking device according to claim 3, characterized in that: The module signal communication circuit is a 4G module circuit.

9. The parking lock communication networking device according to claim 2, characterized in that: The module power supply control circuit includes a first switching transistor, a second switching transistor, a third switching transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a fifth capacitor. The source of the first switching transistor serves as a positive power input terminal to receive the power output of the power conversion circuit in the parking lock main control board and is grounded through the first capacitor. The first resistor and the second capacitor are connected in parallel between the source and the gate of the first switching transistor. The gate of the first switching transistor is connected to the drain of the second switching transistor through the second resistor. The gate of the first switching transistor is connected to the gate of the third switching transistor through the third resistor. The drain of the first switching transistor serves as a positive power output terminal to provide power to the replaceable communication module and is connected to the drain of the third switching transistor through the fourth resistor. The fourth capacitor and the fifth capacitor are connected in parallel between the drain of the first switching transistor and ground. The gate of the second switching transistor is connected to the power supply control terminal of the parking lock main control unit through the fifth resistor. The source of the second switching transistor is grounded. The sixth resistor and the third capacitor are connected in parallel between the gate and the source of the second switching transistor. The source of the third switching transistor is grounded. The first switching transistor is a PMOS transistor, and the second and third switching transistors are both NMOS transistors.

10. A parking lock, comprising the parking lock communication networking device according to any one of claims 1 to 9.

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