Toy ejection kinetic energy tester, test method and test system

Abstract

The invention discloses a toy ejection kinetic energy tester, and the tester comprises an ejection object receiving module which is provided with an adjustable clamping mechanism and is used for fixing ejection toys of different specifications; the multi-axis speed detection module comprises at least two groups of infrared sensor arrays and is used for capturing the initial speed of an ejection object in real time; the data processing module is internally provided with a kinetic energy calculation algorithm, the kinetic energy calculation algorithm calculates a kinetic energy value according to a formula Ek = mv, and the mass m is automatically matched through an ejection object characteristic database; and the display module is provided with an anti-impact touch screen and is used for dynamically displaying a speed-time curve and a kinetic energy analysis report. The invention also discloses a toy ejection kinetic energy test method and test system. According to the toy ejection kinetic energy tester, the infrared sensor array provided with the differential signal processing circuit is used for speed detection, so that noise interference can be effectively reduced, the signal-to-noise ratio of signals can be improved, and the quality and stability of the signals are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of projectile toy testing, in particular to a toy projectile kinetic energy tester, a testing method and a testing system. Background Art

[0002] Projectile toys are toys designed or intended for children under the age of 14. These toys launch projectiles through a launching mechanism. This mechanism can be an energy-storing type that stores and releases energy, or a non-energy-storing type where the child provides the energy. Common projectile toys include toy pistols, slingshots, and bows and arrows. Due to the high lethality of projectiles, there are frequent cases of children being seriously injured or even killed by the excessive kinetic energy of projectiles. Although projectile toys represent a small portion of the toy market, their quality and safety, particularly the testing of the maximum kinetic energy of projectiles, must not be taken lightly. Therefore, kinetic energy testing of projectile toys is a crucial measure to ensure toy safety, improve product quality, meet market access requirements, and protect brand image. Rigorous kinetic energy testing can effectively reduce the risk of accidental injuries during use, ensure that toys comply with relevant safety standards, and thus protect children's safety and health. In fact, many countries and regions have established strict toy safety standards, such as ASTM F963 in the United States, EN 71 in the European Union, and GB 6675 in China. These standards set clear limits on the kinetic energy of projectile toys to ensure that the toys will not harm children under normal use and foreseeable abuse.

[0003] Currently, domestic toy laboratories commonly use instruments to test the kinetic energy of projectile toys. These devices are typically based on physical principles and indirectly calculate kinetic energy by measuring the mass, speed, or distance of the projectile. However, these devices often suffer from complex operation, low precision, and limited applicability. For example, some devices require manual parameter setting, which is cumbersome to operate; others may be affected by environmental factors, resulting in inaccurate test results. In routine monitoring, smaller projectiles are particularly difficult to accurately capture, and the repeatability of test results is even more difficult to ensure. A single test often takes a considerable amount of time to complete. In addition, when the kinetic energy of a projectile is near the critical value specified in the standard, determining whether it meets the requirements becomes even more difficult, which undoubtedly brings many inconveniences to the testing work. Therefore, the development of a toy projectile kinetic energy tester that is simple to operate, highly accurate, and widely applicable has become a current technological need. Summary of the Invention

[0004] The purpose of the present invention is to provide a toy ejection kinetic energy tester, a test method and a test system.

[0005] In order to achieve the above object, the solution of the present invention is: A toy projectile kinetic energy tester, comprising: The projectile receiving module is equipped with an adjustable clamping mechanism for fixing projectile toys of different sizes; A multi-axis velocity detection module, comprising at least two infrared sensor arrays, for capturing the initial velocity of the projectile in real time; A data processing module with a built-in kinetic energy calculation algorithm. The algorithm calculates the kinetic energy value according to the formula Ek=½mv², where the mass m is automatically matched to the projectile feature database; The display module is equipped with an impact-resistant touch screen for dynamically displaying speed-time curves and kinetic energy analysis reports.

[0006] Preferably, the infrared sensor array comprises: The first detection unit consists of 32 sets of infrared tubes with adjustable spacing, arranged linearly along the ejection direction; The second detection unit includes 16 groups of infrared receivers distributed in a ring, which are used to detect the yaw angle of the projectile; The differential signal processing circuit is equipped with a signal comparator with a response time of 0.1ms.

[0007] Preferably, the data processing module further includes: Dynamic calibration unit, automatically correcting the air resistance coefficient based on the material characteristics of the projectile; The temperature compensation unit is equipped with an ambient temperature sensor and corrects the air pressure parameters according to the ideal gas equation; The data storage unit uses a circular storage mechanism to save the latest 1000 test records.

[0008] Preferably, the display module supports multi-mode display: The first display mode presents a three-dimensional velocity vector decomposition diagram in real time; The second display mode generates a kinetic energy-time rate of change curve; The third display mode displays the kinetic energy ranking data of similar catapult toys.

[0009] Preferably, the toy projectile kinetic energy tester further includes a safety protection component: Laser positioning device, used to delineate safe testing areas; An automatic braking mechanism that triggers an electromagnetic brake when it detects that the projectile has deviated from its predetermined trajectory; The protective cover is made of polycarbonate material with a light transmittance of ≥85% and an impact resistance of IK10.

[0010] Preferably, the projectile feature database includes: Standard projectile parameter library, storing mass, size, and material data for more than 200 common toy projectiles; User-defined module that supports obtaining characteristic parameters of new projectiles through 3D scanners; Cloud update interface, remote data synchronization component configured with blockchain verification mechanism.

[0011] A method for testing the kinetic energy of a toy projectile, comprising: Fix the projectile toy to be tested with an adjustable clamp; Receive test parameters input by the user, including ejection angle adjustment range 0°-90° and ejection force level 1-10; Start the multimodal detection process and simultaneously collect the ejection initial velocity, yaw angle, and air resistance parameters; Processing test data based on an improved kinetic energy calculation model that incorporates a material deformation compensation factor and an ambient humidity correction factor; A test report is generated that includes a safety assessment index, which is calculated based on the comprehensive kinetic energy value, ejection trajectory stability, and environmental impact factors.

[0012] Preferably, the improved kinetic energy calculation model adopts: Material property compensation algorithm, adjusting the air resistance coefficient according to the surface roughness of the projectile; Motion trajectory prediction algorithm, which simulates the projectile flight path based on finite element analysis; Energy loss calculation module, taking into account the kinetic energy loss caused by frictional heat.

[0013] A toy ejection kinetic energy testing system, comprising: The aforementioned toy projectile kinetic energy tester; Mobile control terminal, equipped with an AR display interface, supports gesture operation to control test parameters; A cloud-based data analysis platform that uses machine learning models to perform trend analysis on historical test data; The safety warning module automatically sends an alarm message to the associated equipment when it detects that the kinetic energy value exceeds the preset threshold.

[0014] Preferably, the mobile control terminal includes: Bluetooth 5.2 communication module, supports simultaneous connection of multiple test devices; Virtual debugging interface, providing three-dimensional space parameter setting function; The data comparison module can overlay and display the current test results with the standard safety values.

[0015] The principle of the toy projectile kinetic energy tester provided by the present invention is as follows: The toy projectile kinetic energy tester provided by the present invention utilizes an infrared sensor array for speed detection, primarily based on the photoelectric effect and the Doppler effect. Specifically, the infrared sensor consists of an infrared transmitter and a receiver. The transmitter emits infrared light. When a projectile passes through the sensor, it blocks the infrared light, causing the light signal received by the receiver to change and be converted into an electrical signal. Therefore, by recording the number of times the projectile blocks the light per unit time and combining it with the known distance, the projectile's speed can be calculated. Furthermore, the sensor emits infrared light at a fixed frequency. As the projectile moves toward the sensor, the frequency of the reflected infrared light changes. By detecting this change in the reflected light frequency, the projectile's speed can also be calculated. Of particular note, the infrared sensor array used in the present invention also includes a differential signal processing circuit, which effectively processes the signal, effectively reducing noise interference and improving the signal-to-noise ratio, thereby significantly enhancing signal quality and stability.

[0016] The gain effects of the present invention are as follows: 1. The toy projectile kinetic energy tester provided by the present invention greatly simplifies the user's operation through the automated testing process, improves the testing efficiency, and has the advantage of easy operation.

[0017] 2. The toy catapult kinetic energy tester provided by the present invention adopts high-precision sensors and precise data processing algorithms, which not only ensures the accuracy of the test results, but also has the advantage of high precision.

[0018] 3. The toy projectile kinetic energy tester provided by the present invention adopts an adjustable test platform design, which makes the device applicable to projectiles of various types and sizes, meets diverse testing needs, and has the advantage of a wide range of applications.

[0019] 4. The toy projectile kinetic energy tester provided by the present invention is equipped with a safety protection component, which not only helps to protect the safety of the operator, but also ensures the smooth progress of the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the toy catapult kinetic energy tester provided by the present invention.

[0021] Explanation of the accompanying reference numerals: 1, chassis 2, projectile receiving module 3, adjustable clamping mechanism 4, multi-axis speed detection module 5, infrared sensor array 6, display module 7, protective cover 8, laser positioning device 9, automatic braking mechanism.

[0022] Figure 2 This is a schematic diagram of the internal modules of the chassis of the toy catapult kinetic energy tester provided by the present invention. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should also be understood that the following examples are only used to further illustrate the present invention and are not to be construed as limiting the scope of protection of the present invention. The specific mass, reaction time, temperature, process parameters, etc. in the examples are only examples within the appropriate ranges, and any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention fall within the scope of protection of the present invention.

[0024] Example 1 A toy projectile kinetic energy tester, comprising: The projectile receiving module is equipped with an adjustable clamping mechanism for fixing projectile toys of different sizes; A multi-axis velocity detection module, comprising at least two infrared sensor arrays, for capturing the initial velocity of the projectile in real time; A data processing module with a built-in kinetic energy calculation algorithm. The algorithm calculates the kinetic energy value according to the formula Ek=½mv², where the mass m is automatically matched to the projectile feature database; The display module is equipped with an impact-resistant touch screen for dynamically displaying speed-time curves and kinetic energy analysis reports.

[0025] The infrared sensor array comprises: The first detection unit consists of 32 sets of infrared tubes with adjustable spacing, arranged linearly along the ejection direction; The second detection unit includes 16 groups of infrared receivers distributed in a ring, which are used to detect the yaw angle of the projectile; The differential signal processing circuit is equipped with a signal comparator with a response time of 0.1ms.

[0026] The data processing module also includes: Dynamic calibration unit, automatically correcting the air resistance coefficient based on the material characteristics of the projectile; The temperature compensation unit is equipped with an ambient temperature sensor and corrects the air pressure parameters according to the ideal gas equation; The data storage unit uses a circular storage mechanism to save the latest 1000 test records.

[0027] The display module supports multi-mode display: The first display mode presents a three-dimensional velocity vector decomposition diagram in real time; The second display mode generates a kinetic energy-time rate of change curve; The third display mode displays the kinetic energy ranking data of similar catapult toys.

[0028] The toy projectile kinetic energy tester also includes a safety protection component: Laser positioning device, used to delineate safe testing areas; An automatic braking mechanism that triggers an electromagnetic brake when it detects that the projectile has deviated from its predetermined trajectory; The protective cover is made of polycarbonate material with a light transmittance of ≥85% and an impact resistance of IK10.

[0029] The projectile feature database includes: Standard projectile parameter library, storing mass, size, and material data for more than 200 common toy projectiles; User-defined module that supports obtaining characteristic parameters of new projectiles through 3D scanners; Cloud update interface, remote data synchronization component configured with blockchain verification mechanism.

[0030] Example 2 A method for testing the kinetic energy of a toy projectile, comprising: Fix the projectile toy to be tested with an adjustable clamp; Receive test parameters input by the user, including ejection angle adjustment range 0°-90° and ejection force level 1-10; Start the multimodal detection process and simultaneously collect the ejection initial velocity, yaw angle, and air resistance parameters; Processing test data based on an improved kinetic energy calculation model that incorporates a material deformation compensation factor and an ambient humidity correction factor; A test report is generated that includes a safety assessment index, which is calculated based on the comprehensive kinetic energy value, ejection trajectory stability, and environmental impact factors.

[0031] The improved kinetic energy calculation model adopts: Material property compensation algorithm, adjusting the air resistance coefficient according to the surface roughness of the projectile; Motion trajectory prediction algorithm, which simulates the projectile flight path based on finite element analysis; Energy loss calculation module, taking into account the kinetic energy loss caused by frictional heat.

[0032] Example 3 A toy ejection kinetic energy testing system, comprising: The aforementioned toy projectile kinetic energy tester; Mobile control terminal, equipped with an AR display interface, supports gesture operation to control test parameters; A cloud-based data analysis platform that uses machine learning models to perform trend analysis on historical test data; The safety warning module automatically sends an alarm message to the associated equipment when it detects that the kinetic energy value exceeds the preset threshold.

[0033] The mobile control terminal includes: Bluetooth 5.2 communication module, supports simultaneous connection of multiple test devices; Virtual debugging interface, providing three-dimensional space parameter setting function; The data comparison module can overlay and display the current test results with the standard safety values.

[0034] Example 4 The specific operating steps for testing using the toy projectile kinetic energy tester are as follows: Select a standard projectile (e.g., a spherical projectile with a diameter of 2 cm) and place it on the projectile receiving module. If necessary, use the configured adjustable clamping mechanism to secure the projectile. Start the tester and set the test parameters through the display module. The tester automatically enters the test process. The infrared sensor array in the multi-axis velocity detection module captures the projectile in real time and measures the projectile's initial velocity and flight distance (assuming 1.5m). The mass sensor measures the projectile's mass (assuming 10g). The data processing module starts the multimodal detection process and simultaneously collects the ejection initial velocity, yaw angle, and air resistance parameters; Then, based on the standard projectile parameter library and the improved kinetic energy calculation model, the test data is processed, and by introducing a material deformation compensation factor and an environmental humidity correction factor, a test report containing a safety assessment index is generated. The index is calculated based on the kinetic energy value, the projectile trajectory stability, and environmental influencing factors. At the same time, the safety protection component is activated, and the kinetic energy parameters of the projectile are detected in real time through the laser positioning device. When abnormal parameters are detected, or when the projectile is detected to have deviated from the predetermined trajectory, the electromagnetic brake device is triggered to cut off the test within 10ms; Finally, you can receive data and view and save test reports through devices with Bluetooth function (such as mobile phones and computers).

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modification, equivalent replacement and improvement based on the overall concept of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A toy projectile kinetic energy tester, characterized in that: include: A projectile receiving module (2) is provided with an adjustable clamping mechanism (3) for fixing projectile toys of different specifications; A multi-axis velocity detection module (4) comprising at least two infrared sensor arrays (5) for capturing the initial velocity of the projectile in real time; The data processing module has a built-in kinetic energy calculation algorithm, which is based on the formula E k = ½ mv² to calculate the kinetic energy value, wherein the mass m is automatically matched through the projectile feature database; the data processing module is located inside the chassis (1); A display module (6) is provided with an impact-resistant touch screen for dynamically displaying a speed-time curve and a kinetic energy analysis report; the display module is embedded in the surface of the chassis.

2. The toy projectile kinetic energy tester according to claim 1, characterized in that: The infrared sensor array comprises: The first detection unit consists of 32 sets of infrared tubes with adjustable spacing, arranged linearly along the ejection direction; The second detection unit includes 16 groups of infrared receivers distributed in a ring, which are used to detect the yaw angle of the projectile; The differential signal processing circuit is equipped with a signal comparator with a response time of 0.1ms.

3. The toy projectile kinetic energy tester according to claim 1, characterized in that: The data processing module also includes: Dynamic calibration unit, automatically correcting the air resistance coefficient based on the material characteristics of the projectile; The temperature compensation unit is equipped with an ambient temperature sensor and corrects the air pressure parameters according to the ideal gas equation; The data storage unit uses a circular storage mechanism to save the latest 1000 test records.

4. The toy projectile kinetic energy tester according to claim 1, characterized in that: The display module supports multi-mode display: The first display mode presents a three-dimensional velocity vector decomposition diagram in real time; The second display mode generates a kinetic energy-time rate of change curve; The third display mode displays the kinetic energy ranking data of similar catapult toys.

5. The toy projectile kinetic energy tester according to claim 1, characterized in that: Also includes safety protection components: A laser positioning device (8) for demarcating a safe test area; an automatic braking mechanism (9) that triggers an electromagnetic braking device when it detects that the projectile has deviated from a predetermined trajectory; The protective cover body (7) is made of polycarbonate material with a light transmittance of ≥85% and an impact resistance of IK10 grade.

6. The toy projectile kinetic energy tester according to claim 1, characterized in that: The projectile feature database includes: Standard projectile parameter library, storing mass, size, and material data for more than 200 common toy projectiles; User-defined module that supports obtaining characteristic parameters of new projectiles through 3D scanners; Cloud update interface, remote data synchronization component configured with blockchain verification mechanism.

7. A method for testing the kinetic energy of a toy ejection, characterized in that: include: Fix the projectile toy to be tested with an adjustable clamp; Receive test parameters input by the user, including ejection angle adjustment range 0°-90° and ejection force level 1-10; Start the multimodal detection process and simultaneously collect the ejection initial velocity, yaw angle, and air resistance parameters; Processing test data based on an improved kinetic energy calculation model that incorporates a material deformation compensation factor and an ambient humidity correction factor; A test report is generated that includes a safety assessment index, which is calculated based on the comprehensive kinetic energy value, ejection trajectory stability, and environmental impact factors.

8. The toy ejection kinetic energy testing method according to claim 7, characterized in that: The improved kinetic energy calculation model adopts: Material property compensation algorithm, adjusting the air resistance coefficient according to the surface roughness of the projectile; Motion trajectory prediction algorithm, which simulates the projectile flight path based on finite element analysis; Energy loss calculation module, taking into account the kinetic energy loss caused by frictional heat.

9. A toy ejection kinetic energy testing system, characterized in that: include: The tester according to any one of claims 1 to 6; Mobile control terminal, equipped with an AR display interface, supports gesture operation to control test parameters; A cloud-based data analysis platform that uses machine learning models to perform trend analysis on historical test data; The safety warning module automatically sends an alarm message to the associated equipment when it detects that the kinetic energy value exceeds the preset threshold.

10. The toy projectile kinetic energy testing system according to claim 9, characterized in that: The mobile control terminal includes: Bluetooth 5.2 communication module, supports simultaneous connection of multiple test devices; Virtual debugging interface, providing three-dimensional space parameter setting function; The data comparison module can overlay and display the current test results with the standard safety values.

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