A positioning mechanism based on positioning detection method under light detection

Abstract

The present application relates to the technical field of ground lock, and particularly relates to a positioning mechanism based on light detection positioning detection method. The positioning detection method is used for establishing a micro switch in the positioning mechanism to detect the lifting state of the ground lock structure; wherein the micro switch is a single light wheel detection structure, and on the basis of the ground lock lifting state detection, the real-time collection of the ground lock rotation angle data is carried out. In the present application, a light detection positioning structure based on a single light wheel is established, which is mainly applied to the ground lock structure control. Compared with the traditional ground lock structure control device, the single light wheel structure control mode of the present application has a simpler structure on the basis of realizing the ground lock control and light detection.

Description

Technical Field

[0001] This invention relates to the field of floor lock technology, with IPC classification number G07C9 / 00, and particularly to a positioning detection method for a positioning mechanism based on optical detection. Background Technology

[0002] Currently, parking locks are typically controlled intelligently. Before parking, the car owner selects a parking space on the client side. After the parking space obtains the parking information, it automatically controls the operation of the lock and collects the lock's operating information. When the lock has been lowered, the car owner initiates the parking operation. Commonly used lock detection devices typically employ photoelectric detection mechanisms, such as concave cam detection, double smooth wheels with a rotating shaft for single-sided detection, single smooth wheels with an opening and a shaft for single-sided detection, or single smooth wheels with a shaft for left and right detection.

[0003] However, the positioning detection schemes involved in concave cam detection are usually too complex in structure, making them unsuitable for use in large-scale parking lots with a large number of parking spaces. They are also prone to damage and difficult to replace after long-term use. Dual-light-wheel plus rotating shaft single-sided detection and single-light-wheel plus shaft single-sided detection with an opening both require dual-light-wheels, which are complex to manufacture and have high processing costs. While the conventional single-light-wheel plus shaft left-right detection scheme has simple light-wheels, the two detection photoelectric devices on the photoelectric circuit board need to be arranged on both sides of the rotating shaft, resulting in a complex PCB shape, high production costs, and complex installation.

[0004] Patent CN201810379878 provides a public parking space management system and method. This patent establishes multiple control devices, such as a ground lock controller, to control the automatic opening and closing of the ground locks during parking. Based on this, a vehicle detection device is established in conjunction with the ground lock controller to calculate the parking time fee. However, this patent establishes a complete parking management control scheme. Although it involves the rotating device in the ground lock controller, it does not involve improvements to the specific structure and control method of the rotating device.

[0005] Patent CN201610030785 provides a method and device for controlling intelligent parking space locks. This patent establishes multiple sensors for vehicle identification control, parking control, and communication control, among other control functions. However, because this patent introduces multiple sensors for parking space detection, it does not achieve the effect of simplifying the lock control structure or reducing the cost of use, installation, and maintenance.

[0006] Therefore, in view of the problems existing in the intelligent control of the above-mentioned ground lock structure, the single-sided single light wheel 2 positioning mechanism described in this invention only requires the arrangement of photoelectric devices on one side of the rotating shaft, which greatly optimizes the production and manufacturing of the light wheel and PCB circuit board. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides a positioning detection method for a positioning mechanism based on optical detection. Specifically, the positioning detection method includes: establishing a micro switch in the positioning mechanism to detect the lifting and lowering state of the ground lock structure; wherein the micro switch is a single optical wheel 2 detection structure, and based on the detection of the lifting and lowering state of the ground lock, real-time acquisition of the ground lock rotation angle data is performed.

[0008] Preferably, the positioning mechanism specifically includes a rotating spindle 1, a single light wheel 2, a light wheel fin 8, and a PCB detection structure 5 based on light wheel detection.

[0009] Preferably, the single light wheel 2 is fixedly installed at the front end of the rotating main shaft 1, and light wheel fins 8 are fixedly installed on the single light wheel 2.

[0010] Preferably, the light wheel fin 8 rotates with the rotation of the main shaft 1, and the main shaft 1 rotates with the rotation of the rocker arm of the ground lock structure.

[0011] Preferably, the PCB detection structure 5 based on optical wheel detection includes a first photoelectric detection sensor group 3 and a second photoelectric detection sensor group 6, and the PCB detection structure 5 has a groove on its plane.

[0012] Preferably, the first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6 are respectively installed on the upper and lower sides of the PCB detection structure 5.

[0013] Preferably, in either the first photoelectric sensor group 3 or the second photoelectric sensor group 6, each photoelectric sensor group contains two photoelectric sensors; the two photoelectric sensors are distributed on both sides of the groove.

[0014] Specifically, the light wheel fin 8 passes through the groove of the PCB detection structure 5 when it rotates, and through the interference of the light beam between the two photoelectric detection sensors, it is used to collect the real-time rotation angle data of the ground lock.

[0015] Preferably, the PCB detection structure 5 includes a ground lock rocker arm anti-collision detection system.

[0016] Preferably, the anti-collision detection of the ground lock rocker arm obtains the vibration detection result of the light wheel fin 8, and uses the vibration detection result as the judgment method for the anti-collision detection of the ground lock rocker arm.

[0017] Preferably, the vibration detection of the light wheel fin 8 is achieved by determining the state of the light wheel fin 8 through the first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6, in order to determine whether the ground lock rocker arm has been impacted. If an impact is detected, the system immediately jumps to the collision alarm program. After the light wheel fin 8 is detected to be moving stably, the system feeds back to the main control logic to detect the rotation angle of the ground lock rocker arm.

[0018] Specifically, the state of the light wheel fin 8 includes a sudden change in speed at a certain moment, resulting in a small range of oscillations due to vibration.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] This invention establishes a light detection and positioning structure based on a single light wheel 2, primarily applied in the control of parking lock structures. Compared to traditional parking lock control devices, the single light wheel 2 structure control method described in this invention achieves both parking lock control and light detection, while featuring a simpler structure, lower production and maintenance costs, and easier application in large parking lots with multiple garages. Furthermore, this invention also establishes a method for acquiring specific rotation angle data and handling parking lock collision warnings based on the single light wheel 2, which, when combined with the positioning mechanism of the single light wheel 2 described in this invention, further enriches the functionality and intelligence of the parking lock structure. Attached Figure Description

[0021] Figure 1 This is an overall diagram of a positioning mechanism based on optical detection.

[0022] Figure 2 This is a diagram of a PCB inspection structure based on optical wheel detection.

[0023] Figure 3 This is a structural diagram of the rotating main shaft, single optical wheel, and optical wheel fins in a positioning mechanism based on optical detection.

[0024] Figure 4 A structural diagram for adding arc-shaped protrusions to the light wheel fins;

[0025] Figure 5 The specific process for acquiring rotational data of the light wheel fins;

[0026] In the diagram: 1. Rotating spindle; 2. Single optical wheel; 3. First photoelectric sensor group; 4. First photoelectric sensor group; 5. PCB detection structure; 6. Second photoelectric sensor group; 7. Second photoelectric sensor group; 8. Optical wheel fin. Detailed Implementation

[0027] Example 1:

[0028] This embodiment describes a positioning mechanism based on optical detection for positioning detection, such as... Figure 1 and Figure 3 As shown, it specifically includes a rotating spindle 1, a single optical wheel 2, optical wheel fins 8, and a PCB detection structure 5 based on optical wheel detection, as follows. Figure 2 As shown; a micro switch is established in the positioning mechanism to detect the lifting and lowering state of the ground lock structure; wherein the micro switch is a single-shine wheel 2 detection structure, and based on the detection of the lifting and lowering state of the ground lock, the rotation angle data of the ground lock is collected in real time.

[0029] The connection method of the positioning mechanism based on light detection is as follows: the rotating main shaft 1 and the rotating bushing in the ground lock structure are fitted together. When the rotating bushing of the ground lock structure rotates, it drives the rotating main shaft 1 to rotate. The single light wheel 2 is fixedly installed at the front end of the rotating main shaft 1. A light wheel fin 8 is fixedly installed on the single light wheel 2. There is one light wheel fin 8. The front end of the PCB detection structure 5 based on light wheel detection has a groove. The upper left and right sides of the groove are fixed with a first photoelectric detection sensor. The lower left and right sides of the groove are fixed with a second photoelectric detection sensor. The light wheel fin 8 and the PCB detection structure 5 based on light wheel detection are placed side by side and fixed by a fixing device. The light wheel fin 8 passes through the front groove of the PCB detection structure 5 during rotation.

[0030] Specifically, such as Figure 5 As shown, the specific process for acquiring the rotational data of the light wheel fin 8 is as follows:

[0031] S1. When the ground lock is opened, when the light wheel fin 8 rotates to the position where the first photoelectric detection sensor group 3 is blocked, and does not pass the position where the second photoelectric detection sensor group 6 is blocked, the ground lock structure stops at 90°, and at the same time the ground lock rocker arm is raised and becomes vertical.

[0032] S2. When the ground lock starts to close, the light wheel fin 8 rotates to the position where the first photoelectric detection sensor group 3 is blocked, and at the same time the second photoelectric detection sensor group 6 is blocked, the corresponding ground lock structure rotates 0-90°, and the ground lock rocker arm presents an acute angle state.

[0033] S3. When the light wheel fin 8 rotates to the position where the first photoelectric sensor group 3 is not blocked and the second photoelectric sensor group 6 is blocked, the corresponding ground lock structure stops at 0°. At this time, the ground lock rocker arm is raised and in a falling state.

[0034] S4. When the light wheel fin 8 rotates to the position where the first photoelectric sensor group 3 is not blocked and the second photoelectric sensor group 6 is not blocked, the corresponding ground lock structure stops at 90-180°. At this time, the ground lock rocker arm is raised and presents an obtuse angle state.

[0035] In the PCB detection structure 5, a ground lock rocker arm anti-collision detection method based on the vibration detection of the light wheel fin 8 is established.

[0036] The vibration detection of the light wheel fin 8 is achieved by using the first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6 to determine the state of the light wheel fin 8, which is used to determine whether the ground lock rocker arm is impacted. If an impact is detected, the system immediately jumps to the collision alarm program. After the light wheel fin 8 is detected to be moving stably, the system feeds back to the main control logic to detect the rotation angle of the ground lock rocker arm.

[0037] Specifically, when the ground lock rocker arm is impacted, the impact force is transmitted to the rotating main shaft 1. Due to the applied torque, the tangential acceleration of the light wheel fin 8 suddenly increases. Based on this, due to the arc-shaped protrusions on both sides of the light wheel fin 8 in this invention, the first photoelectric detection sensor group 3 and the second photoelectric detection sensor can detect that the change speed of the beam distance is changing at a constant speed. When the change speed of the beam distance is detected to suddenly increase, it can be determined that the tangential acceleration of the light wheel fin 8 has suddenly increased, thereby determining that the ground lock rocker arm has been impacted and triggering an alarm.

[0038] The small-range oscillation caused by vibration refers to the detection of the movement direction of the light wheel fin 8 by the first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6. The light wheel fin 8 rotates along with the rotation of the main shaft 1, and its rotation direction is the same as the movement direction. When the ground lock rocker arm is subjected to a violent impact, the shock wave generated by the impact vibration will be transmitted to the main shaft 1, causing the main shaft 1 to fluctuate back and forth within a small range, thereby causing a small change in the movement direction of the light wheel fin 8. When the first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6 detect the small change in the movement direction of the light wheel fin 8, they determine that the ground lock rocker arm has been impacted and trigger an alarm.

[0039] In summary, the working principle of the optical detection-based positioning mechanism is as follows: After the ground lock structure acquires vehicle movement information, it will perform upward or downward control, thereby driving the rotating bushing in the ground lock structure to rotate. The rotation of the transfer bushing drives the active main shaft to rotate. The rotation of the main shaft 1 drives the optical wheel fin fixedly installed on the single optical wheel 2 to rotate. During the rotation, the optical wheel fin 8 passes through the front groove of the PCB detection structure 5. The rotation data of the optical wheel fin 8 is collected by the first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6 at the front end of the PCB detection structure 5. The PCB detection structure 5 is used to acquire the rotation data of the optical wheel fin 8 collected by the first photoelectric detection sensor and the second photoelectric detection sensor. The rotation data is calculated to convert the rotation data into the upward or downward state of the ground lock structure. The upward or downward state is represented by the rotation angle of the ground lock structure.

[0040] Example 2

[0041] This embodiment provides a positioning detection method based on light detection for a positioning mechanism. The specific implementation method differs from that of Embodiment 1 in that arc-shaped protrusions are installed on both sides of the light wheel fin 8.

[0042] Specifically, the arc-shaped convex ridge is always aligned with the beams of the first photoelectric sensor group 3 and the second photoelectric sensor group 6 during the movement of the light wheel fin 8. In the positioning mechanism positioning method, the first photoelectric sensor group 3 and the second photoelectric sensor group 6 measure and calculate the real-time distance from the arc-shaped convex ridge, and calculate the specific rotation angle of the rotating main shaft 1 based on the real-time distance, thereby determining the specific rotation angle of the ground lock rocker arm.

[0043] The first photoelectric detection sensor group 3 and the second photoelectric detection sensor group 6 detect the light wheel fin 8 using a beam interference detection method. However, the beam interference detection method can only collect the rotation range of the light wheel fin 8 and cannot determine the specific rotation angle data in one step. In order to further collect the rotation angle data, the present invention has arc-shaped protrusions fixedly installed on both sides of the light wheel fin 8. Since the photoelectric detection sensor can measure the distance between itself and the object by measuring the length of the reflected light wave, the measured distance with the arc-shaped protrusions can be converted into specific rotation angle data, thereby improving the detection accuracy of the optical detection positioning mechanism.

Claims

1. A positioning mechanism based on light detection under positioning detection method, characterized in that, Specifically, the positioning detection method comprises: establishing a micro switch in the positioning mechanism to detect the lifting state of the ground lock structure; wherein the micro switch is a single light wheel (2) detection structure, and on the basis of the ground lock lifting state detection, the real-time collection of the ground lock rotation angle data is performed; The positioning mechanism comprises a rotating main shaft (1), a single light wheel (2), a light wheel fin (8), and a PCB detection structure (5) based on light wheel detection; The single light wheel (2) is fixedly installed at the front end of the rotating main shaft (1), and the light wheel fin (8) is fixedly installed on the single light wheel (2); The light wheel fin (8) rotates with the rotation of the rotating main shaft (1), and the rotating main shaft (1) rotates with the rotation of the ground lock rocker arm in the ground lock structure; The PCB detection structure (5) based on light wheel detection comprises a first photoelectric detection sensor group (3) and a second photoelectric detection sensor group (6), and the PCB detection structure (5) is provided with a groove in the plane; The first photoelectric detection sensor group (3) and the second photoelectric detection sensor group (6) are respectively installed on the upper and lower sides of the PCB detection structure (5); Each of the first photoelectric detection sensor group (3) and the second photoelectric detection sensor group (6) comprises two photoelectric detection sensors, and the two photoelectric detection sensors are arranged on both sides of the groove; The specific process of the light wheel fin (8) rotation data collection is as follows: S1, when the ground lock is opened, the light wheel fin (8) rotates to the position where the first photoelectric detection sensor group (3) is blocked and the second photoelectric detection sensor group (6) is not blocked, the ground lock structure is stopped at 90°, and the ground lock rocker arm is lifted and presents a vertical state; S2, when the ground lock is closed, the light wheel fin (8) rotates to the position where the first photoelectric detection sensor group (3) is blocked and the second photoelectric detection sensor group (6) is blocked, the corresponding ground lock structure rotates 0-90°, and the ground lock rocker arm presents an acute angle state; S3, when the light wheel fin (8) rotates to the position where the first photoelectric detection sensor group (3) is not blocked and the second photoelectric detection sensor group (6) is blocked, the corresponding ground lock structure is stopped at 0°, and the ground lock rocker arm is lifted and presents a falling state; S4, when the light wheel fin (8) rotates to the position where the first photoelectric detection sensor group (3) is not blocked and the second photoelectric detection sensor group (6) is not blocked, the corresponding ground lock structure is stopped at 90-180°, and the ground lock rocker arm is lifted and presents an obtuse angle state.

2. The positioning mechanism based on the positioning detection method under light detection according to claim 1, characterized in that, In the PCB detection structure (5), the ground lock rocker arm anti-collision detection is established.

3. The positioning mechanism based on the positioning detection method under light detection according to claim 2, characterized in that, The ground lock rocker arm anti-collision detection obtains the vibration detection result of the light wheel fin (8), and takes the vibration detection result as the judgment mode of the ground lock rocker arm anti-collision detection.

4. The positioning mechanism based on the positioning detection method under light detection according to claim 3, characterized in that, The light wheel fin (8) vibration detection judges the state of the light wheel fin (8) through the first photoelectric detection sensor group (3) and the second photoelectric detection sensor group (6), so as to judge whether the ground lock rocker is impacted, and if impacted, immediately jump to the collision alarm program, and when the movement of the light wheel fin (8) is detected to be stable, feedback to the main control logic again for ground lock rocker rotation angle detection.

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