Electronic target scoring and timing system for grenade use

Abstract

The utility model relates to an electronic target scoring timing system for grenade use, which is used for timing and score evaluation of grenade throwing items in military training examination, and comprises laser timing sensors arranged at a starting point and an ending point and used for sensing the time when examinees pass through the starting point and the ending point; the multi-row timing display is used for displaying various assessment times; the remote controller is provided with a plurality of keys and respectively corresponds to different time adding conditions, and when the corresponding keys are pressed down, time adding instructions are sent to the main control unit; the sound equipment is used for receiving the voice broadcasting instruction of the main control unit and broadcasting; and the main control unit is in wireless communication connection with the components and is used for processing and controlling data. According to the system, through collaborative design of the remote controller and the main control unit, voice feedback, authority management and military examination rules are deeply bound for the first time, design is reasonable, deployment is flexible, accuracy, high efficiency and fairness of military training examination can be remarkably improved, and the system has high practical value and popularization significance.

Description

Technical Field

[0001] This utility model relates to the field of military training and assessment technology, specifically to an electronic target reporting and timing system for hand grenades. Background Technology

[0002] In live-fire exercises and assessments of grenade throwing in the military, traditional timing methods primarily rely on manual stopwatch use. This method has several problems: examiners may forget the number of misses or omit the time for violations when the participant reaches the finish line, leading to inaccurate timing; and the manual timing requires adding the added seconds, resulting in low efficiency. Furthermore, existing electronic timing systems also have limitations in military training assessments. For example, some systems can only perform basic timing functions and cannot meet the needs of recording and providing feedback on misses and violations in grenade throwing training. Moreover, these systems often require complex wiring and equipment installation, making them inconvenient for rapid deployment and use in different locations and environments.

[0003] A search revealed a utility model patent with publication number CN204630485U, which discloses an intelligent target reporting system. This system includes a target reporting device, a target, and a shooting training management device. The target reporting device can identify the bullet impact point and complete the target reporting. It comprises an optical lens, an image sensor, an image acquisition and processing unit, and a communication module. The image acquisition and processing unit is connected to the image sensor and the communication module, respectively. The target includes a target surface. The horizontal distance between the optical lens and the target is less than 50cm, and the vertical distance between the center of the optical lens and the center of the target surface is greater than 100cm. Although this target reporting system uses an optical lens that can correct image distortion at small shooting angles, enabling target surface image acquisition and bullet impact point identification at close range, thus overcoming the shortcomings of existing technologies such as low reporting efficiency and poor mobility, which prevent the completion of various tactical maneuvers, this system focuses on bullet impact point identification in shooting training and is not suitable for actual grenade use drills and assessments in military units.

[0004] Patent CN105371705A discloses an intelligent shooting system for a military firing range, comprising a computer USB wireless networking module, a computerless wireless networking module, a shooter LCD wireless networking routing module, a signal collector wireless networking routing module, a shooter LCD display module, and a signal collector module. All nodes in the system utilize wireless digital communication, employing self-organizing network routing and software protocols. Each networking module uses different networking protocols and data filtering technologies, and the modules are not interchangeable. The computerless wireless networking module cannot be used simultaneously with the computer USB wireless networking module; otherwise, it will cause network timing chaos and lead to system crashes. While this intelligent shooting system can be used for automatic wireless target reporting for various types of rifles and pistols, and boasts strong anti-interference capabilities, high target reporting accuracy, reliable communication, and simple operation, it only supports score statistics and does not address dynamic timing rules for grenade throwing (such as limits on misses and equipment drop time) or multi-dimensional timing displays. Therefore, it is also unsuitable for actual grenade use drills and assessments in the military. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an electronic target reporting and timing system for hand grenades. This system, through the collaborative design of the remote control and the main control unit, for the first time deeply integrates voice feedback, access control and military assessment rules, and realizes the connection and data transmission between various components through wireless communication technology. It has the characteristics of accurate timing, convenient operation and real-time feedback. The system is reasonably designed, flexible in deployment, and can significantly improve the accuracy, efficiency and fairness of military training assessment, and has high practical value and promotion significance.

[0006] The technical solution of this utility model is: an electronic target timing system for hand grenades, comprising:

[0007] Laser timing sensors are installed at the start and end points to sense the time it takes for the examinee to cross the start and end points. When the examinee crosses the start point, the laser timing sensor at the start point detects the signal and sends a start timing command to the main control unit. When the examinee crosses the end point, the laser timing sensor at the end point detects the signal and sends a stop timing command to the main control unit.

[0008] A multi-row timing display used to show the duration of the exercise, the overtime, and the total time;

[0009] A remote control with multiple buttons is used to record time-extension situations such as missing the target or violating the rules. Each button corresponds to a different time-extension situation. When the corresponding button is pressed, a time-extension command is sent to the main control unit.

[0010] The speaker is used to receive and broadcast voice broadcast instructions from the main control unit. The speaker is connected to the main control unit. When the examiner hits the target or violates the rules, the main control unit sends a voice broadcast instruction to the speaker, and the speaker broadcasts the corresponding prompt information, such as "hit", "missed target", "equipment dropped", "weak awareness of the enemy situation", etc.

[0011] The main control unit communicates with and processes data from the aforementioned components, serving as the system's control center. It incorporates a dynamic timing algorithm, automatically updating data according to preset rules (e.g., 5 seconds for each miss, 10 seconds for equipment drop). It also communicates with the laser sensor and remote controller via a tri-mode wireless module (Bluetooth / Zigbee / custom protocol). The main control unit uses the TDMA protocol to allocate wireless communication resources and is powered by a lithium battery pack, along with a step-down and voltage-regulating module.

[0012] Preferably, the main control unit includes a data processing module, a wireless communication module, and a control module, used to process and control data from the laser timing sensor and the remote controller.

[0013] Preferably, the network constructed by the wireless communication module is a wireless mesh network, and the wireless communication module is a LoRa or nRF24L01 wireless communication module.

[0014] Preferably, the multi-row timing display shares data via an SPI bus and independently displays the motion time, overtime, and total time, etc.; the multi-row timing display is a three-row timing display, the first screen of the three-row timing display displays the motion time from the start to the finish line, the second screen displays the time for missing the target and the overtime for violations, and the third screen displays the total time, that is, the sum of the motion time and the overtime.

[0015] Preferably, the remote control has four types of buttons: miss, hit, equipment drop, and weak enemy awareness, and supports continuous operation to trigger dynamic permission management; when the corresponding button is pressed, an overtime command is sent to the main control unit. After receiving the command, the main control unit performs the overtime operation according to the preset overtime rules; when the miss button of the remote control is triggered three times in a row, the main control unit controls the multi-row timing display to reset the movement time and overtime time to zero, and triggers the audio to broadcast the corresponding voice, such as the voice broadcast "failed".

[0016] The electronic target timing system used in this grenade has the following advantages:

[0017] (1) Through the cooperation of the laser timing sensor and the main control unit, the precise timing function is realized, avoiding the error of manual timing. The system timing error is less than 50ms, and the timing is accurate.

[0018] (2) The system realizes the connection and data transmission between components through wireless communication technology, which is simple, convenient and easy to use.

[0019] (3) The sound system can broadcast the hit and violation of the examinee in real time, making the assessment process more transparent and fair. The voice broadcast module (VS1053B chip) supports real-time audio decoding, and can trigger customized voice (such as "missed target" or "weak awareness of the enemy situation") by pressing the button type on the remote control, and refresh it synchronously with the timer display to provide real-time feedback on the assessment situation.

[0020] (4) The system can automatically record and process assessment data, reducing manual intervention and improving assessment efficiency. The efficiency of automatic processing of overtime logic is increased by 60%.

[0021] (5) It can not only keep time, but also record the extra time for missing the target, violation, etc., and display the assessment results intuitively through the three-row timing display. The end-to-end latency of wireless communication is less than 50ms, which meets the real-time requirements of military training. The industrial-grade hardware design (working temperature -40℃~85℃) supports deployment in complex field environments, which significantly improves the accuracy and deployment flexibility of military assessment. Attached Figure Description

[0022] Figure 1 The diagram shows the structure of the electronic target timing system for grenades in this embodiment, illustrating the overall architecture of the system, including the layout and connection of the laser timing sensor, the three-row timing display, the infrared remote control, the external speaker, and the main control unit.

[0023] Figure 2 The diagram shows the structure of the infrared remote controller in the embodiment, illustrating the controller's appearance and button layout, including the specific locations and labels of four types of buttons: A (missing target), B (hit), C (equipment dropped), and D (weak enemy awareness).

[0024] Figure 3 The diagram shows the electrical connections of the electronic target timing system used in the hand grenade example. It details the electrical connections between the various components within the system, including the signal transmission and control relationships between the laser timing sensor, the three-row timing display, the infrared remote control, the external speaker, and the main control unit.

[0025] In the diagram: 1.1—Laser timing sensor at the starting point, 1.2—Laser timing sensor at the ending point, 2—Three-row timing display, 3—Infrared remote control, 4—External speaker, 5—Main control unit. Detailed Implementation

[0026] In order to enable those skilled in the art to understand the technical content of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model.

[0027] like Figures 1 to 3 As shown, a grenade uses an electronic target timing system, including: laser timing sensors 1.1 and 1.2, a three-row timing display 2, an infrared remote control 3, an external speaker 4, and a main control unit 5.

[0028] The laser timing sensors 1.1 and 1.2 are respectively located at the starting point and the end point to sense the time taken for the examinee to cross the starting point and the end point. When the examinee crosses the starting point, the laser timing sensor 1.1 at the starting point senses the signal and sends a start timing command to the main control unit 5; when the examinee crosses the end point, the laser timing sensor 1.2 at the end point senses the signal and sends a stop timing command to the main control unit. The laser timing sensors 1.1 and 1.2 are wirelessly connected to the main control unit 5, and a Mesh network is constructed using LoRa or nRF24L01 modules.

[0029] The three-panel timing display 2 shares data via the SPI bus and independently displays the motion time, overtime, and total time. The first timer displays the motion time from the start to the finish line; the second timer displays the time for missing the target and the overtime for violations; and the third timer displays the total time, which is the sum of the motion time and the overtime.

[0030] The infrared remote controller 3 is used to record time-extension situations such as misses and violations. The infrared remote controller 3 has four types of buttons: A (miss), B (hit), C (equipment dropped), and D (weak enemy awareness). It supports continuous operation to trigger dynamic permission management. When the corresponding button is pressed, a time-extension command is sent to the main control unit. After receiving the command, the main control unit performs the time-extension operation according to the preset time-extension rules. When the miss button on the infrared remote controller is triggered three times consecutively, the main control unit resets the movement time and the time-extension time to zero and triggers an external speaker to announce "Failure".

[0031] The external speaker 4 is connected to the main control unit and is used to receive and broadcast voice commands from the main control unit. When the examiner hits the target or commits a violation, the main control unit sends a voice broadcast command to the speaker, which then broadcasts the corresponding prompts, such as "Hit," "Missed," "Equipment dropped," or "Lack of awareness of the enemy situation."

[0032] The main control unit 5, serving as the system's control center, employs an STM32F407VGT6 chip and incorporates a dynamic timing algorithm. It automatically updates data according to preset rules (e.g., 5 seconds for each miss, 10 seconds for equipment drop) and communicates with the laser sensor and remote controller via a tri-mode wireless module (Bluetooth / Zigbee / custom protocol). The main control unit uses the TDMA protocol to allocate wireless communication resources and is powered by a 12V / 5000mAh lithium battery pack, complemented by a DC-DC step-down module (12V→5V) and an LDO voltage regulator module (5V→3.3V).

[0033] In practical applications, the main control unit 5 can be assembled on the back of the triple-row timing display 2.

[0034] In practical applications, this system can be operated according to the following steps:

[0035] S1 System Deployment: Laser timing sensors are installed at the start and finish lines of the assessment area, ensuring they are properly connected to the main control unit via wireless communication. Infrared remote controls and external speakers are placed in easily accessible locations for assessors, and a three-panel timing display is positioned in a prominent location for real-time monitoring of the assessment.

[0036] S2 Equipment Initialization: Power on the main control unit and all components, perform system self-test to ensure all equipment is working properly. The main control unit loads preset timing rules and assessment parameters, such as miss time and equipment drop time.

[0037] S3 Assessment Begins: Upon the participant's arrival at the starting point, the laser timing sensor detects the signal and sends a start-time command to the main control unit, initiating the timer. The main control unit transmits the timing information to the three-panel timing display via the SPI bus, displaying the exercise time.

[0038] S4 Throwing Process Record: The examiner throws a grenade. After each throw, the examiner presses the corresponding button on the infrared remote control based on the actual situation. For example, if the target is hit, the "Hit" button is pressed. After receiving the instruction, the main control unit announces "Hit" through the external speaker, but there is no need to display the number of hits on the second panel of the three-panel timing display, because hitting does not involve adding time. If the target is missed, the "Miss" button is pressed. The main control unit adds time and announces "Miss," while displaying the number of misses and the added time on the second panel of the three-panel timing display.

[0039] S5 Violation Handling: If the examinee commits a violation such as dropping equipment or lacking awareness of the enemy situation during the exercise, the examiner presses the corresponding button on the infrared remote control. After receiving the violation instruction, the main control unit displays the number of violations on the second panel of the three-row timing display and adds time according to the preset rules. At the same time, the corresponding prompt information is broadcast through the external speaker.

[0040] S6 Assessment End and Score Calculation: Upon reaching the finish line, the laser timing sensor detects the signal and sends a stop-time command to the main control unit, halting the timer. The main control unit calculates the final assessment score, i.e., the total time, based on preset timing and overtime rules, and displays it on the third panel of the three-panel timing display.

[0041] S7 Data Recording and Analysis: The main control unit can store assessment data for subsequent analysis and evaluation. By analyzing the assessment data, the performance of the assessors can be understood, problems in training can be identified, and targeted training improvements can be made.

[0042] This utility model of a hand grenade utilizes an electronic target timing system. Through wireless communication technology, it achieves connection and data transmission between components, featuring accurate timing, convenient operation, and real-time feedback. The system is rationally designed and can effectively improve the efficiency and fairness of military training assessments, possessing high practical value and significant potential for wider application.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A grenade use electronic scoring and timing system, characterized by, The system comprises: a laser timing sensor arranged at the start point and the end point for sensing the time of the examinee passing through the start point and the end point; a multi-row timing display for displaying the movement time, the overtime and the total time; a remote controller having a plurality of keys corresponding to different overtime conditions, and sending an overtime instruction to the main control unit when the corresponding key is pressed; a sounder for receiving a voice broadcast instruction from the main control unit and broadcasting the instruction; a main control unit in communication connection with the above components and performing data processing and control.

2. The grenade using the electronic target-scoring timing system according to claim 1, wherein The main control unit comprises a data processing module, a wireless communication module and a control module for processing and controlling the data from the laser timing sensor and the remote controller.

3. The grenade using an electronic target-recording timing system according to claim 2, wherein The wireless communication module constructs a wireless Mesh network.

4. The grenade using the electronic target-scoring timing system according to claim 3, wherein The wireless communication module is a LoRa or nRF24L01 wireless communication module.

5. The grenade using electronic target-recording timing system according to claim 1, wherein The multi-row timing display shares data through an SPI bus.

6. The grenade using electronic target reporting timing system according to claim 1 or 5, wherein The multi-row timing display is a three-row timing display, the first block of which displays the movement time from the start point to the end point, the second block displays the time of off-target and overtime of violation, and the third block displays the total time.

7. The electronic scoring and timing system for use with a grenade as defined in claim 1, wherein: The remote controller is provided with four types of keys of off-target, hit, equipment drop and weak enemy awareness, and supports continuous operation to trigger dynamic permission management.

8. The grenade using the electronic target indicating timing system according to claim 7, wherein: When the off-target key of the remote controller is continuously triggered for three times, the main control unit controls the multi-row timing display to reset the movement time and the overtime, and triggers the sounder to broadcast the corresponding voice.

9. The grenade using electronic target-recording timing system according to claim 1, wherein The main control unit adopts a TDMA protocol to allocate wireless communication resources.

10. The grenade using electronic scoring and timing system according to claim 1, wherein The system is powered by a lithium battery pack, and is provided with a voltage reduction module and a voltage stabilization module.

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