A laser gun shooting time detection device

Abstract

The application discloses a laser gun shooting time detection device, which comprises a gun body, a trigger movement block, a slide rail groove, a carrier sliding block, a linkage rod, a U-shaped carrier sheet and a Hall sensor array. The trigger movement block is arranged in the gun body and connected with a trigger in the gun body, so that the trigger movement block moves linearly and reciprocally when the trigger is pulled. The carrier sliding block is arranged on the slide rail groove and moves reciprocally along the slide rail groove, and the moving direction of the carrier sliding block is in the same straight line with the moving direction of the trigger movement block. One end of the linkage rod is hinged with the trigger movement block, and the other end of the linkage rod is hinged with the carrier sliding block, so that the trigger movement block drives the carrier sliding block to move reciprocally. The two arms of the U-shaped carrier sheet are arranged in parallel with the two sides of the slide rail groove. The Hall sensor array comprises a plurality of Hall sensors which are fixed on the U-shaped carrier sheet at intervals. The permanent magnet block is fixed on the carrier sliding block. The processor is in communication connection with the Hall sensor. The device can accurately detect the shooting time.

Description

Technical Field

[0001] This application relates to the field of laser gun firing time detection technology, and in particular to a laser gun firing time detection device. Background Technology

[0002] In laser shooting training, obtaining the precise moment of an athlete's shot is crucial for improving shooting accuracy and training effectiveness. This moment is not only core data for assessing the athlete's firing technique, postural stability, breathing control, and psychological state, but also a time benchmark for optimizing tactical coordination, conducting scientific reviews, and implementing psychological interventions. By aligning the firing moment with multi-source data such as aiming trajectory, breathing cycle, heart rate variability, and weapon sway, it is possible to quantitatively determine whether the shot was completed within the "optimal firing window" when the body is most stable, the mind is most relaxed, and weapon sway is minimal. This transforms the traditional "experience-based action" that relies on the coach's visual assessment into a repeatable, trackable, and feedback-based "data-driven action," achieving millisecond-level error control and improved hit consistency.

[0003] However, existing detection methods have many shortcomings. On the one hand, some training relies on manual recording, which is not only labor-intensive but also susceptible to human error, leading to low accuracy. On the other hand, vibration-based recording methods are prone to interference (such as footsteps and equipment operation), especially when detecting air guns. Air guns produce minimal vibration, and low-recoil weapons like air guns have insufficient vibration acceleration (failure when vibration signal <0.01g), making accurate detection of the firing moment difficult. Furthermore, while visual recognition detection methods have some application, they require high-definition cameras and image processing algorithms, resulting in high hardware costs and significant susceptibility to ambient light. Detection performance is unstable under different lighting conditions, with variations exceeding 500 lux, leading to a failure rate greater than 30%. In conclusion, traditional detection methods fail to meet the demands of modern laser shooting training in terms of accuracy, automation, anti-interference capabilities, and cost. Therefore, a high-precision, anti-interference trigger action timing detection solution is urgently needed to overcome the limitations of existing technologies in micro-motion detection. Summary of the Invention

[0004] Based on this, and in response to the aforementioned technical problems, a laser gun firing time detection device is provided to solve the problems of inaccurate detection and significant interference in existing technologies.

[0005] In a first aspect, a laser gun firing timing detection device, the device comprising: a gun body, and further comprising:

[0006] The trigger movement block (8) is disposed in the gun body and connected to the trigger in the gun body, so that it moves in a straight line reciprocating when the trigger is pulled;

[0007] The slide rail groove (2) is fixed in the gun body;

[0008] The carrier slider (4) is installed on the slide rail groove (2) so that it can reciprocate along the slide rail groove (2) and its movement direction is on the same straight line as the movement direction of the trigger movement block (8).

[0009] Linkage rod (6), one end of which is hinged to the trigger movement block (8) and the other end is hinged to the carrier slider (4), so that the trigger movement block (8) drives the carrier slider (4) to reciprocate;

[0010] U-shaped carrier (1), the two arms of the U-shaped carrier (1) are arranged parallel to the two sides of the slide rail groove (2);

[0011] The Hall sensor array includes multiple Hall sensors (3), which are fixed at intervals on the U-shaped carrier (1);

[0012] A permanent magnet block (5) is fixed on the carrier slider (4);

[0013] The processor (7) is communicatively connected to the Hall sensor (3).

[0014] Optionally, in the above scheme, the device further includes: a magnetic shielding cover;

[0015] The magnetic shielding cover is disposed on the outer periphery of the Hall sensor array to enclose the plurality of Hall sensors (3) and to shield against external electromagnetic interference.

[0016] In the above-described scheme, the device may further optionally include: an adjustable support;

[0017] The adjustable bracket is used to support and fix the Hall sensor (3), and the adjustable bracket is configured to adjust the relative position of the Hall sensor (3) along the moving direction of the carrier slider (4) to achieve fine adjustment of the position of the Hall sensor (3).

[0018] Optionally, in the above scheme, the processor (7) integrates a Bluetooth module to achieve communication connection with the mobile terminal.

[0019] In the above scheme, optionally, the position of at least one Hall sensor (3) is adjusted to a position that can produce the maximum response when the trigger is pulled to the firing critical point.

[0020] In the above scheme, optionally, the permanent magnet block (5) is made of neodymium iron boron (N52), and the magnetic pole direction is parallel to the motion axis of the carrier slider (4).

[0021] Optionally, in the above scheme, the Hall sensor (3) is a linear AH3503.

[0022] Optionally, in the above scheme, the magnetic shielding cover is made of μ-metal material.

[0023] Optionally, in the above scheme, the Hall sensor (3) may be 3-5.

[0024] This application has at least the following beneficial effects:

[0025] This application utilizes a trigger-moving block connected to the trigger and a carrier slider connected to the trigger-moving block, so that the carrier slider moves when the trigger is pulled. A permanent magnet is mounted on the carrier slider, and a U-shaped carrier plate is positioned next to the slide rail groove of the carrier slider. A Hall sensor array is mounted on the U-shaped carrier plate, allowing the Hall sensor array to detect the movement position of the permanent magnet and thus accurately detect the firing moment. This detection device has a simple structure, with all components integrated within the laser gun. The device is compact, has the same appearance as a regular laser gun, and has minimal impact on the user. Furthermore, this application incorporates multiple Hall switches in various positions, enabling precise detection of the firing moment and real-time detection of the trigger position, such as recognizing the athlete's intention to pull the trigger, the smoothness of the pull, and feints. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of a laser gun firing timing detection device provided in one embodiment of this application. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] In one embodiment, such as Figure 1 As shown, a laser gun firing time detection device is provided. The device includes: a gun body, and further includes:

[0029] The trigger movement block 8 is disposed in the gun body and connected to the trigger in the gun body, so that it moves in a straight line reciprocating when the trigger is pulled;

[0030] The slide rail groove 2 is fixed inside the gun body;

[0031] The carrier slider 4 is mounted on the slide rail groove 2 so that it reciprocates along the slide rail groove 2, and its moving direction is on the same straight line as the moving direction of the trigger moving block 8.

[0032] Linkage rod 6, one end of which is hinged to the trigger movement block 8 and the other end of which is hinged to the carrier slider 4, so that the trigger movement block 8 drives the carrier slider 4 to reciprocate;

[0033] U-shaped carrier 1, the two arms of the U-shaped carrier 1 are arranged parallel to the two sides of the slide rail groove 2;

[0034] A Hall sensor array, comprising a plurality of Hall sensors 3, wherein the plurality of Hall sensors 3 are fixed at intervals on the U-shaped carrier 1;

[0035] Permanent magnet block 5 is fixed on the carrier slider 4;

[0036] Processor 7, which is communicatively connected to Hall sensor 3.

[0037] In this embodiment, the main hardware components of this application include a laser gun body (including a trigger), a permanent magnet block 5, multiple Hall sensors 3, a processor 7 with Bluetooth connectivity, etc. The laser gun trigger is connected to a trigger movement slider 8 inside the gun body via a structural component. The permanent magnet block 5 is fixed on the movement slider and moves along with the trigger.

[0038] Select a permanent magnet block 5 of appropriate size and magnetic strength, and fix it to the moving slider by means of glue or screws to ensure that the permanent magnet block moves synchronously with the moving slider.

[0039] Based on the movement path of the moving slider, multiple Hall sensors 3 are installed at appropriate positions inside the gun body, for example, one Hall sensor is installed at the starting position, middle position, and ending position of the moving slider. The Hall sensors 3 are fixed to the gun body by a bracket, and their positions can be finely adjusted by adjusting the screws on the bracket to achieve precise detection of the slider's stroke and position. This application uses a star grounding PCB layout, increasing the sampling rate to 1kHz.

[0040] The processor 7 with Bluetooth is selected with appropriate processing power and Bluetooth function, such as the STM32 series chip. It is installed in a suitable position inside the gun body and electrically connected to the Hall sensor 3 via wires to ensure that the signal of the Hall sensor 3 can be acquired in real time.

[0041] Multiple Hall sensors 3 are installed inside the gun body, located along the movement path of the sliding block, to detect the position of the permanent magnet block 5. By fine-tuning the positions of the multiple Hall sensors 3, precise judgment of the slider's stroke and position can be achieved, thereby deriving the position and stroke of the laser gun trigger, and ultimately predicting the precise firing moment. A processor with Bluetooth is electrically connected to the Hall sensors to collect signals from the Hall sensors in real time and send the collected information to the intelligent target drone via Bluetooth. The intelligent target drone processes and records the useful data. The processing of the data collected by the Hall sensors by the intelligent target drone is existing technology and will not be elaborated upon here.

[0042] When the athlete pulls the trigger of the laser gun, the trigger moves the carrier slider 4 via a structural component, causing the permanent magnet 5 fixed on the carrier slider 4 to move accordingly. The Hall sensor 3 detects the change in the magnetic field of the permanent magnet block, generates a corresponding electrical signal, and transmits the signal to the processor 7 equipped with a Bluetooth device. The processor collects the signals from the Hall sensors in real time, determines the position and travel of the moving slider based on the triggering sequence and time of different Hall sensors, and then deduces the position and travel of the laser gun trigger. The processor's determination of the laser trigger's position and travel based on the Hall sensors is existing technology and will not be elaborated upon here. The processor sends the collected information and the deduced shooting time to the intelligent target machine via Bluetooth. After receiving the data, the intelligent target machine processes and records the useful data, such as storing the shooting time and trigger travel information, for subsequent analysis and evaluation of the athlete's shooting performance.

[0043] In the aforementioned laser gun firing timing detection device, a trigger movement block connected to the trigger and a carrier slider connected to the trigger movement block are arranged so that the carrier slider moves when the trigger is pulled. A permanent magnet is placed on the carrier slider, and a U-shaped carrier plate is placed next to the slide rail groove of the carrier slider. A Hall sensor array is placed on the U-shaped carrier plate, thereby sensing the movement position of the permanent magnet and accurately detecting the firing timing. This detection device has a simple structure, and all components are integrated into the laser gun. The device is compact, has the same appearance as a regular laser gun, and has minimal impact on the user. Furthermore, this application arranges multiple Hall switches in different positions, enabling accurate detection of the firing timing; it also allows for real-time detection of the trigger position, such as recognizing the athlete's intention to pull the trigger, the smoothness of the pull, and feints.

[0044] In one embodiment, the device further includes: a magnetic shielding cover;

[0045] The magnetic shielding cover is disposed on the outer periphery of the Hall sensor array to enclose the plurality of Hall sensors 3 and to shield against external electromagnetic interference. Enclosing the Hall sensor array with a magnetic shielding cover isolates it from external electromagnetic interference.

[0046] In one embodiment, the device further includes: an adjustable support;

[0047] The adjustable bracket is used to support and fix the Hall sensor 3, and the adjustable bracket is configured to adjust the relative position of the Hall sensor 3 along the moving direction of the carrier slider 4, so as to achieve fine adjustment of the position of the Hall sensor 3.

[0048] By fine-tuning the sensor position using a bracket, the sensor next to the trigger is activated precisely when the trigger is pulled to the critical point.

[0049] In one embodiment, the processor 7 integrates a Bluetooth module to enable communication with a mobile device.

[0050] In one embodiment, the position of at least one Hall sensor 3 is adjusted to a position that produces the maximum response when the trigger is pulled to the firing critical point.

[0051] In one embodiment, the permanent magnet block 5 is selected from neodymium iron boron N52 (size 3×3×5mm), and the magnetic pole direction is parallel to the motion axis of the carrier slider 4.

[0052] In one embodiment, the Hall sensor 3 is a linear AH3503 with a detection range of ±50mT.

[0053] In one embodiment, the magnetic shield is made of μ-metal.

[0054] In one embodiment, there are 3-5 Hall sensors 3.

[0055] The device in this application includes the following core structure and description, as shown in Table 1:

[0056]

[0057] The testing process for this application is as follows:

[0058] 1. Adjust the sensor position so that when the trigger is pulled to the critical point, the adjacent sensor is just triggered;

[0059] 2. Power consumption: The MCU is in sleep mode normally and is woken up by a Hall signal. The operating current is <15mA and the sleep current is <5uA.

[0060] 3. Signal generation: The slider moves the permanent magnet → the Hall sensor array outputs a differential voltage signal;

[0061] 4. Data transmission and control: The MCU transmits the timestamp via Bluetooth. The displacement curve is sent to the intelligent target drone, which automatically records the time corresponding to the impact point.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] Precise Detection: By using a permanent magnet in conjunction with multiple Hall effect sensors, the stroke and position of the moving slider can be accurately detected, thereby accurately inferring the firing moment. This avoids problems such as inaccurate human recording, significant vibration interference, and the influence of ambient light on visual recognition in traditional methods. The timing detection error is < (Traditional vibration method) ).

[0064] High degree of automation: The device performs automated detection through hardware, eliminating the need for dedicated personnel to record data, thus improving detection efficiency and reducing labor costs.

[0065] Strong anti-interference capability: The Hall sensor detects changes in magnetic field and is not affected by environmental vibration, light or other factors. It is especially suitable for detecting laser guns with low vibration, such as air guns. Strong environmental adaptability: It can work stably in the range of 0-100,000 lux of light and -10℃ to 50℃.

[0066] Low cost: Compared with high-cost detection methods such as visual recognition, the Hall sensor and MCU used in this invention have lower hardware costs and offer high cost-effectiveness. Hardware cost < ¥100 (visual solution > ¥500).

[0067] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims. The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A laser gun firing time detection device, characterized in that, The device includes: a gun body, and further includes: The trigger movement block (8) is disposed in the gun body and connected to the trigger in the gun body, so that it moves in a straight line reciprocating when the trigger is pulled; The slide rail groove (2) is fixed in the gun body; The carrier slider (4) is installed on the slide rail groove (2) so that it can reciprocate along the slide rail groove (2) and its movement direction is on the same straight line as the movement direction of the trigger movement block (8). Linkage rod (6), one end of which is hinged to the trigger movement block (8) and the other end is hinged to the carrier slider (4), so that the trigger movement block (8) drives the carrier slider (4) to reciprocate; U-shaped carrier (1), the two arms of the U-shaped carrier (1) are arranged parallel to the two sides of the slide rail groove (2); The Hall sensor array includes multiple Hall sensors (3), which are fixed at intervals on the U-shaped carrier (1); A permanent magnet block (5) is fixed on the carrier slider (4); The processor (7) is communicatively connected to the Hall sensor (3).

2. The laser gun firing time detection device according to claim 1, characterized in that, The device further includes: a magnetic shielding cover; The magnetic shielding cover is disposed on the outer periphery of the Hall sensor array to enclose the plurality of Hall sensors (3) and to shield against external electromagnetic interference.

3. The laser gun firing time detection device according to claim 2, characterized in that, The device also includes: an adjustable support; The adjustable bracket is used to support and fix the Hall sensor (3), and the adjustable bracket is configured to adjust the relative position of the Hall sensor (3) along the moving direction of the carrier slider (4) to achieve fine adjustment of the position of the Hall sensor (3).

4. The laser gun firing time detection device according to claim 1, characterized in that, The processor (7) integrates a Bluetooth module to enable communication with a mobile device.

5. The laser gun firing time detection device according to claim 3, characterized in that, The position of at least one Hall sensor (3) is adjusted to a position that produces the maximum response when the trigger is pulled to the firing critical point.

6. The laser gun firing time detection device according to claim 1, characterized in that, The permanent magnet block (5) is made of neodymium iron boron (N52), and the magnetic pole direction is parallel to the motion axis of the carrier slider (4).

7. The laser gun firing time detection device according to claim 1, characterized in that, The Hall sensor (3) is a linear AH3503.

8. The laser gun firing time detection device according to claim 2, characterized in that, The magnetic shielding cover is made of μ-metal material.

9. The laser gun firing time detection device according to claim 1, characterized in that, The Hall sensor (3) consists of 3-5 units.

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