Intelligent parking lock angle detection device based on state coding of double infrared geminate transistors

Abstract

The utility model discloses an intelligent parking lock angle detection device based on state coding of double infrared geminate transistors, which comprises a first infrared device for outputting a first signal; the second infrared device outputs a second signal; the signal adjusting device is used for changing the output states of the first signal and the second signal and is arranged on a rocker arm of the intelligent parking lock; and the main control unit receives the first signal and the second signal and obtains the angle state of the intelligent parking lock according to the output states of the first signal and the second signal. The double-infrared transmitting tube and the double-infrared receiving tube are arranged to receive infrared light signals, the light barrier is used for shielding the infrared light, the output state of the signals of the double-infrared device changes along with rotation of the light barrier, and the output state of the first signal and the output state of the second signal are obtained. The rotating angle state of the rocker arm of the intelligent parking lock can be visually obtained, the rotating angle state of the rocker arm and the opening and closing state of the parking lock can be detected at the same time, the service life is long, and cost is low.

Description

Technical Field

[0001] This utility model relates to the field of intelligent parking equipment technology, specifically to an intelligent parking lock angle detection device based on dual infrared photocell status coding. Background Technology

[0002] In existing technologies, the status detection of smart locks generally uses a single infrared tube. However, a single infrared tube can only detect two states: open or closed, and cannot detect the angle of the smart lock. Another method is to use a gyroscope to detect the angle of the lock. However, the gyroscope has to rotate frequently with the lock's rocker arm, making it prone to damage, resulting in a short lifespan and higher cost.

[0003] For example, Chinese patent CN117647927B discloses a gyroscope-based intelligent ground lock control method, which uses a gyroscope to monitor the tilt angle of the ground lock, but the cost is relatively high. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application proposes an intelligent floor lock angle detection device based on dual infrared photocell status coding. This device uses infrared technology for non-contact angle status detection of the intelligent floor lock, resulting in no mechanical damage, a long service life, and the ability to simultaneously detect the rotation angle of the rocker arm and the on / off status of the floor lock, while also being cost-effective.

[0005] The following is the technical solution of this utility model. One aspect of this utility model is to provide an intelligent ground lock angle detection device based on dual infrared photocell status encoding, comprising:

[0006] The first infrared device outputs the first signal;

[0007] The second infrared device outputs a second signal;

[0008] A signal conditioning device, used to change the output state of the first signal and the second signal, is installed on the rocker arm of the smart lock;

[0009] The main control unit receives the first signal and the second signal, and obtains the angle state of the smart lock based on the output states of the first signal and the second signal.

[0010] Preferably, the first infrared device includes a first infrared transmitter and a first infrared receiver, wherein the first infrared transmitter emits infrared light and the first infrared receiver receives the infrared light emitted by the first infrared transmitter.

[0011] Preferably, the second infrared device includes a second infrared emitter and a second infrared receiver, wherein the second infrared emitter emits infrared light and the second infrared receiver receives the infrared light emitted by the second infrared emitter.

[0012] Preferably, the signal conditioning device is an L-shaped light-blocking plate.

[0013] Preferably, the first infrared device is disposed on the front side of the PCB board, and the second infrared device is disposed on the back side of the PCB board.

[0014] Preferably, the output state of the first signal includes a first state and a second state.

[0015] Preferably, the output states of the second signal include a third state and a fourth state.

[0016] In another aspect, this utility model also provides an intelligent floor lock, including the aforementioned angle detection device.

[0017] The beneficial effects of this utility model are as follows: infrared light signals are received by setting up dual infrared emitting tubes and receiving tubes, and infrared light is blocked by a light-blocking plate. As the light-blocking plate rotates, the output state of the dual infrared device changes accordingly. By obtaining the output states of the first and second signals, the rotation angle of the light-blocking plate can be directly obtained. Since the light-blocking plate rotates with the rocker arm of the smart lock, the rotation angle of the rocker arm of the smart lock can be obtained. The rotation angle of the rocker arm and the open / closed state of the lock can be detected simultaneously. It has a long service life and low cost. Attached Figure Description

[0018] Figure 1 This is a circuit diagram of the first infrared device of this utility model;

[0019] Figure 2 This is a circuit diagram of the second infrared device of this utility model. Detailed Implementation

[0020] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example:

[0022] A smart lock angle detection device based on dual infrared photocell state encoding includes a first infrared device that outputs a first signal; a second infrared device that outputs a second signal; a signal adjustment device for changing the output states of the first and second signals, which is mounted on the rocker arm of the smart lock; and a main control unit that receives the first and second signals and obtains the angle state of the smart lock based on the output states of the first and second signals.

[0023] It should be noted that in the process of obtaining the angle state of the smart lock based on the output states of the first and second signals, the output states of the first and second signals are intuitive. The angle state of the lock can be directly obtained based on the intuitive output states of the first and second signals. The process does not involve complex calculations or algorithms. Therefore, this utility model does not involve any improvement to the method.

[0024] The first infrared device includes a first infrared transmitter and a first infrared receiver. The first infrared transmitter emits infrared light, and the first infrared receiver receives the infrared light emitted by the first infrared transmitter.

[0025] The second infrared device includes a second infrared transmitter and a second infrared receiver. The second infrared transmitter emits infrared light, and the second infrared receiver receives the infrared light emitted by the second infrared transmitter.

[0026] The signal adjustment device is an L-shaped light-blocking plate. Using an L-shaped light-blocking plate, as the rocker arm rotates, one end of the plate initially blocks the first infrared receiver of the first infrared device from receiving infrared light, then stops blocking it, and as the rotation continues, the other end gradually blocks the second infrared receiver of the second infrared device. During this process, the output states of the first signal of the first infrared device and the second infrared device both change. Based on the output states of the first signal of the first infrared device and the second infrared device, the rotation angle and on / off state of the rocker arm can be directly observed.

[0027] The first infrared device is located on the front of the PCB board, and the second infrared device is located on the back of the PCB board. Placing them on the same PCB board further reduces the cost of using the PCB board, and also allows the light-blocking plate to better function on both infrared devices.

[0028] The output state of the first signal includes a first state and a second state. The output state of the first signal includes state "1" and state "0". When the first infrared receiver receives infrared light, the output state of the first signal is "1". When the infrared light emitted by the first infrared transmitter of the first infrared device is blocked by the light-blocking plate, causing the first infrared receiver to be unable to receive the infrared light, the output state of the first signal becomes "0".

[0029] The output states of the second signal include the third and fourth states. The output states of the second signal also include state "1" and state "0". When the second infrared receiver receives infrared light, the output state of the second signal is "1". When the infrared light emitted by the second infrared transmitter of the second infrared device is blocked by the light-blocking plate, causing the second infrared receiver to be unable to receive the infrared light, the output state of the second signal becomes "0".

[0030] like Figure 1 and Figure 2 As shown, specifically, the first infrared device includes resistor R1, resistor R2, infrared LED D1, infrared receiver D2, and main control unit interface OUT1, and the second infrared device includes resistor R3, resistor R4, infrared LED D3, infrared receiver D4, and main control unit interface OUT2.

[0031] When designing the PCB board, a notch is provided on the PCB to facilitate the installation of the light-blocking plate. Infrared LEDs D1 and D3 are installed on one side of the notch, with LED D1 located on the front of the PCB board and LED D3 located on the back of the PCB board. On the other side of the notch opposite the LEDs, infrared receivers D2 and D4 are installed, with infrared receiver D2 located on the front of the PCB board and infrared receiver D4 located on the back of the PCB board.

[0032] The light-blocking function can only be achieved when the first or second arm of the L-shaped light-blocking plate is perpendicular to the PCB board.

[0033] Working principle:

[0034] For example, when the rocker arm of the smart lock is in the closed state (parallel to the ground), the first arm of the L-shaped light-blocking plate is parallel to the PCB board, and the second arm of the light-blocking plate is perpendicular to the PCB board and perpendicular to the direction of infrared light illumination. This blocks the infrared light emitted by the infrared LED D3 of the second infrared device located on the back of the PCB board, preventing the infrared receiver D4 from receiving the infrared light. The infrared light emitted by the infrared LED D3 located on the front of the PCB board is received by the infrared receiver D2. At this time, the signal received by the main control unit is "10". When the rocker arm of the smart lock is to be opened to put the lock into working condition, the rocker arm rotates, and the angle between the first arm of the L-shaped light-blocking plate and the PCB board changes from 0°. Rotating 90°, the angle between the second arm of the L-shaped light-blocking plate and the PCB board changes from 90° to 0°. When the second arm is no longer perpendicular to the PCB board, the infrared receiver D4 receives the infrared light emitted by the infrared emitter D3, and the signal received by the main control unit changes from "10" to "11", indicating that the rocker arm of the smart lock is in a half-open state (that is, during the opening or closing process, the rocker arm is specified as being in the opening or closing process based on whether the signal "11" changes to "10" or "01"). This continues until the first arm of the light-blocking plate is perpendicular to the PCB board and the second arm is parallel to the PCB board, and the signal received by the main control unit changes to "01", indicating that the rocker arm of the smart lock is in the open state.

[0035] Based on this, this utility model uses dual infrared emitters and receivers to receive infrared signals and uses a light-blocking plate to block the infrared light. As the light-blocking plate rotates, the output state of the dual infrared device changes accordingly. By acquiring the output states of the first and second signals, the rotation angle of the light-blocking plate can be directly obtained. Since the light-blocking plate rotates with the rocker arm of the smart lock, the rotation angle of the rocker arm of the smart lock can be obtained. It can simultaneously detect the rotation angle of the rocker arm and the open / closed state of the lock. It has a long service life and low cost, effectively solving the problem that the existing technology cannot obtain the rotation angle of the rocker arm when using a single infrared tube. That is, in the existing technology, when the main control unit receives the signal "1", it does not know whether the rocker arm is in the opening process or fully open. This utility model adds the rotation angle state process of "11", which can clearly understand the state of the rocker arm.

[0036] This utility model also provides an intelligent floor lock, including the above-mentioned intelligent floor lock angle detection device based on dual infrared photocell status coding.

[0037] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0038] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An intelligent ground lock angle detection device based on dual infrared photocell status encoding, characterized in that, include: The first infrared device outputs the first signal; The second infrared device outputs a second signal; A signal conditioning device, used to change the output state of the first signal and the second signal, is installed on the rocker arm of the smart lock; The main control unit receives the first signal and the second signal, and obtains the angle state of the smart lock based on the output states of the first signal and the second signal.

2. The intelligent ground lock angle detection device based on dual infrared photocell status coding according to claim 1, characterized in that, The first infrared device includes a first infrared transmitter and a first infrared receiver. The first infrared transmitter emits infrared light, and the first infrared receiver receives the infrared light emitted by the first infrared transmitter.

3. The intelligent ground lock angle detection device based on dual infrared photocell status coding according to claim 1, characterized in that, The second infrared device includes a second infrared transmitter and a second infrared receiver. The second infrared transmitter emits infrared light, and the second infrared receiver receives the infrared light emitted by the second infrared transmitter.

4. The intelligent ground lock angle detection device based on dual infrared photocell status encoding according to claim 1, 2, or 3, characterized in that, The signal conditioning device is an L-shaped light-blocking plate.

5. The intelligent ground lock angle detection device based on dual infrared photocell status coding according to claim 1, characterized in that, The first infrared device is located on the front of the PCB board, and the second infrared device is located on the back of the PCB board.

6. The intelligent ground lock angle detection device based on dual infrared photocell status coding according to claim 1, characterized in that, The output state of the first signal includes a first state and a second state.

7. The intelligent ground lock angle detection device based on dual infrared photocell status coding according to claim 1, characterized in that, The output states of the second signal include a third state and a fourth state.

8. A smart lock, characterized in that, Including the intelligent ground lock angle detection device based on dual infrared photocell status coding as described in any one of claims 1-7.

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