Simulation test system for shoulder and hand-held objects

By designing a simulation test system, using vertical and horizontal drive devices to simulate the running state, the problem of difficulty in verifying the strength of the carrying equipment in the prior art is solved, and the precise strength test of the strap and hook is achieved, and the product quality is improved.

CN119533882APending Publication Date: 2025-02-28GETAC TECH CORP
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Patent Information

Application Number
CN202311107312.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-08-30
Publication Date
2025-02-28

AI Technical Summary

Technical Problem

The prior art is difficult to effectively verify the strength of the carrier device carrying equipment or electronic devices in different usage situations, especially in shoulder or hand-held mode.

Method used

A simulation test system is designed, including a control unit and a load-bearing unit, which simulates vertical up and down movements and horizontal swing movements in a human running state through a vertical drive device and a horizontal drive device to test the strength of the strap and hook.

Benefits of technology

The system can simulate actual use situations, evaluate the tolerance of straps, hooks and other structures through accurate strength testing, improve product quality, and meet various usage needs.

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Abstract

The invention discloses a simulation test system for shoulder and hand-held objects. The system comprises a control unit for controlling the system to execute a simulation test. Aiming at a simulation test of a shoulder and back object, a bearing device capable of being attached with straps is provided, the straps are connected with a back or side back test object through at least one hook, and the bearing device is connected with a vertical driving device and a horizontal driving device, so that a control unit controls the vertical driving device to execute vertical up-and-down movement. And controlling the horizontal driving device to execute horizontal swinging motion. For a simulation test of a hand-held object, an arm simulation device is provided, a handle can be tied and hung, the handle is connected with the hand-held object to be tested, and a control unit controls a swing driving device connected with the arm simulation device to execute forward and backward swing motion.
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Description

Technical Field

[0001] The specification discloses a simulation test system, in particular to a simulation test system for conducting strength tests by simulating a person carrying an object on his shoulders or in his hands. Background Art

[0002] In response to the specific needs of users using appliances or electronic devices in various scenarios, the carrier equipment provided by manufacturers needs to be strong enough to be used in more stringent usage scenarios. For example, users will carry personal computer equipment on their shoulders or in their hands, so it is necessary to strengthen the structural design of hooks, straps and various joints.

[0003] When manufacturers design hooks, straps and various connection points for carrying equipment or electronic devices, they need to verify the strength of the structure of the carrying device in different usage scenarios. The current known verification methods use single-point or multi-point tests on various hooks and corresponding straps. For example, the test structure can be subjected to a strength test of more than 6 times the force and a strength test during the swing process to verify whether the carrying device is sufficient to cope with specific application scenarios. Summary of the invention

[0004] In response to the verification requirements that meet actual application scenarios, the specification proposes a simulation test system for shoulder-carrying and hand-held objects, wherein the simulation test system for shoulder-carrying objects includes a control unit and a carrying unit, the carrying unit is provided with a carrying device for attaching a strap, the strap is connected to the back or side of the test object through at least one hook, wherein the carrying device is connected to a fixed bracket between a vertical drive device and a horizontal drive device on the first supporting structure.

[0005] The control unit is used to control the vertical driving device in the bearing unit to perform vertical up and down movement, and to control the horizontal driving device to perform horizontal swing movement.

[0006] Preferably, the first supporting structure is provided with an elongated groove, and the vertical driving device is provided with a linear motor module in the elongated groove, so that the linear motor module drives the supporting device to perform vertical movement through a transmission structure according to a timing diagram simulating a human running state, and performs vertical back and forth movement with a vertical amplitude, and determines the time the supporting device stays at the lowest point and the time it is moving according to a time ratio.

[0007] Preferably, the horizontal driving device is provided with a servo motor module on the first supporting structure, and the servo motor module drives the bearing device to swing horizontally and repeatedly left and right through the fixed bracket.

[0008] Preferably, according to the timing diagram of the simulated human running state, the control unit controls the vertical driving device to drive the supporting device to simulate the human's left and right feet stepping on the ground to form a support period, and the left and right feet leaving the ground to form a flight period; at the same time, the control unit controls the horizontal driving device to drive the supporting device to swing to the left, swing to the right and return to the original position horizontally corresponding to the support period and the flight period.

[0009] Furthermore, according to the timing diagram of the simulated human running state, the control unit also controls the vertical drive device to move vertically at a reciprocating speed, and controls the horizontal drive device to swing left and right at a swing angle and an angular velocity. In addition, the carrying device simulates the running state of the human and is inclined at an angle to the ground.

[0010] In this way, the system will set the test times and duration through the control unit according to the test requirements, and repeatedly control the vertical drive device and the horizontal drive device to perform vertical up and down movement and horizontal swing movement.

[0011] According to an embodiment of the simulation test system for a portable object, the system includes a control unit and an arm simulation test unit, wherein the arm simulation test unit is provided with an arm simulation device for hanging a handle, the handle is connected to a portable test object, and the arm simulation device is pivotally connected to a swing drive device arranged on a second support structure. The control unit controls the swing drive device in the arm simulation test unit to perform a forward and backward swinging motion.

[0012] Preferably, a servo motor module is provided in the swing drive device, and the servo motor module is connected to the arm simulation device via a pivot structure. The control unit controls the servo motor module to drive the arm simulation device to perform a forward and backward swinging motion at a certain angle and an up and down motion with a certain amplitude.

[0013] In this way, the system sets the test times and duration through the control unit according to the test requirements, so as to repeatedly control the swing drive device to perform the forward and backward swing motion.

[0014] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, the drawings provided are only for reference and description and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A diagram showing a person carrying an object on their shoulders;

[0016] Figure 2 A schematic diagram showing a person carrying an object;

[0017] Figure 3 A timing diagram showing the running state of the simulator;

[0018] Figure 4A schematic diagram showing an embodiment of the main circuit components of a simulation test system for carrying an object on the shoulder;

[0019] Figure 5 A schematic diagram of an embodiment of a simulation device for displaying a shoulder-carrying object;

[0020] Figure 6 A schematic diagram showing an embodiment of a simulation test system for displaying a portable object and main circuit components;

[0021] Figure 7 A schematic diagram of an embodiment of a simulation device for displaying a portable object;

[0022] Figure 8 A diagram showing an embodiment of the integrated operation of a simulation test system;

[0023] Fig. 9 A second flow chart showing an operation embodiment of the simulation test system; and

[0024] Fig.10 A third flow chart showing an operation embodiment of the simulation test system. DETAILED DESCRIPTION

[0025] The following is an explanation of the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual sizes. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0026] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0027] The specification proposes a simulation test system for carrying objects on shoulders and in hand, which is used to simulate a person moving with objects on shoulders and in hand, and to conduct destructive tests that conform to the use scenarios of carrying objects on shoulders and in hand, so as to test various possible damage situations. For example, when a carried object on shoulders or in hand is moved, the damage points are likely to be concentrated on the straps and hooks, and may also fall on other locations or components.

[0028] The simulation test system can be used for reference Figure 1 A schematic diagram of a person carrying an object on his shoulders, and Figure 2 A schematic diagram of a person carrying an object is shown.

[0029] Figure 1 The person 10 shown is carrying an object 103 on his shoulders through a shoulder strap 100 and the hooks 101 and 102 connected thereto, wherein several fulcrums that need to be strengthened are formed, such as the shoulder strap 100 itself, and the hooks 101 and 102 connecting the object 103. Therefore, the proposed simulation test system for carrying objects on shoulders performs simulation tests on these fulcrums that may be damaged under certain intensity of movement or long-term use.

[0030] Figure 2 The figure shows a person 20 carrying an object 203 by hand through a hand strap 200 and the hooks 201 and 202 connected thereto. The figure shows several supporting points that need to be strengthened, which are important parts for the simulation test, such as the hand strap 200 itself and the hooks 201 and 202 connecting the object 203. Therefore, the proposed simulation test system for carrying objects performs specific intensity movement or long-term simulation tests on these parts.

[0031] According to the embodiment, the simulation test system operation refers to a timing diagram of a simulated human running state produced through experiments and records to describe the physical state of a person when running, which can be referred to as Figure 3 Schematic diagram shown.

[0032] The timing diagram of the simulated human running state shown in the figure shows that a person 31 forms foot contact with the ground (support period) and leaves the ground (flight period) in a two-foot running cycle. This example shows that the ratio of the time when a single foot contacts the ground and leaves the ground is about 7 to 3, and the vertical change range is about 10 cm.

[0033] In this example, the upper half of the timing diagram simulating the running state of a person shows the running person 31. This example shows that when the person 31 is running normally, there will be a height difference of a certain distance up and down. The figure shows that this height difference is about 10 cm. In addition, when the person 31 runs for a period of time, the left and right footsteps will change between being supported by the ground and being in the air. The figure shows the proportional relationship between the support period and the air period formed when running continuously. Corresponding to the human body running state in the upper half, the lower half of the timing diagram simulating the running state of a person shows the left and right swing formed by the swinging torso 33 of the person 31 when running.

[0034] It is worth mentioning here that Figure 3 The timing diagram of the simulated human running state shown is only a timing diagram of the human running state tested under specific circumstances. The numerical values ​​are only data measured under specific experiments and are not used to limit the timing diagram followed by the simulation test system proposed in the specification.

[0035] Therefore, the simulation test system proposed in the specification is operated according to the timing diagram of the simulated human running state, so as to realize the simulation test system of the shoulder-carrying object, wherein the main circuit components can refer to Figure 4 The schematic diagram of the embodiment is shown, and reference is also made to Figure 5 A schematic diagram of an embodiment of a simulation device for carrying an object on the shoulder is shown.

[0036] Figure 4 The display control unit 401 and other circuit components electrically connected thereto, such as a carrying device 407, a vertical driving device 403 and a horizontal driving device 405, form a carrying unit 400. The carrying unit 400 is provided with a carrying device 407 for attaching a shoulder strap (such as Figure 1 The strap 100 shown is connected to the back or side of the test object (such as Figure 1 When the simulation test system of the shoulder-carrying object is operated, the operating parameters are set according to the timing diagram of the running state of the simulated person, such as the time point of the vertical up and down movement of the vertical drive device 403, the vertical movement amplitude and speed, etc., and the time point of the horizontal swing of the horizontal drive device 405, the horizontal movement amplitude and speed, etc. The control unit 401 controls the vertical drive device 403 and the horizontal drive device 405 to perform the simulation test according to these operating parameters.

[0037] In the simulation device structure of the shoulder-carrying object, such as Figure 5 In the embodiment shown, the carrying device 50 is used to simulate a human torso, and the test object 509 to be tested is carried on the carrying device 50 with a shoulder strap 507 to simulate the state of a person carrying the object on his shoulders while running. The carrying device 50 is placed on a fixed bracket 505 connected and arranged between a vertical driving device 503 and a horizontal driving device 506 on the first supporting structure 500. One side of the fixed bracket 505 is connected to the vertical driving device 503 through a transmission structure 504, and one end is provided with a horizontal driving device 506.

[0038] The first supporting structure 500 shown in the figure is provided with an elongated groove 501, and the vertical driving device 503 is provided with a linear motor module in the elongated groove 501. The linear motor module is controlled by the control unit and can drive the supporting device 50 to move vertically up and down through the fixed bracket 505 with the transmission structure 504 according to the timing diagram of the simulated human running state. The control unit controls the linear motor module in the vertical driving device 503 to move vertically back and forth with a vertical amplitude according to the operating parameters, and determines the time the supporting device 50 stays at the lowest point and the time it moves according to the time ratio of the human body in the support period and the air period shown in the timing diagram of the simulated human running state.

[0039] On the other hand, the control unit controls the horizontal driving device 506 in the carrying unit to perform horizontal swinging motion. According to the embodiment, the horizontal driving device 506 is provided with a servo motor module on the fixed bracket 505 on the first supporting structure, and the servo motor module is controlled by the control unit. According to the operating parameters of the left and right swing amplitude of the human body trunk in the timing diagram of the simulated human running state, the horizontal driving device 506 is controlled by a rotating shaft perpendicular to the ground, and the carrying device 50 is driven to repeatedly rotate about ±10 degrees through the fixed bracket 505 to perform horizontal left and right repeated swinging, thereby simulating the swing cycle of the human hip during walking or running.

[0040] In this way, when the simulation test system is operating, the control unit will control the vertical driving device 503 according to the timing diagram of the simulated person's running state to drive the supporting device 50 to move during the support period formed by the left and right feet of the simulated person stepping on the ground, and the flight period formed by the left and right feet leaving the ground; at the same time, the horizontal driving device 506 is used to drive the supporting device 50 to swing to the left, swing to the right, and return to the original position in accordance with the support period and the flight period.

[0041] During the continuous test, the supporting device 50 is first used to simulate a person's running posture and is inclined at an angle to the ground. The control unit sets a test number and a duration according to a test requirement (involving the strength requirements of the shoulder strap and related fulcrums). According to the timing diagram of the simulated person's running state, the vertical drive device 503 is repeatedly controlled to move vertically at a reciprocating speed, and the horizontal drive device 506 is repeatedly controlled to swing left and right at a swing angle and an angular velocity.

[0042] In another embodiment, the simulation test system implements a simulation test of a portable object, wherein the main circuit components can refer to Figure 6 The schematic diagram of the embodiment is shown, and you can also refer to Figure 7 A schematic diagram of an embodiment of a simulation device for a portable object is shown.

[0043] The simulation test system for portable objects shown in the figure includes a control unit 601 and an electrically connected arm simulation test unit 600, and the main components of the arm simulation test unit 600 include a swing drive device 603 and an arm simulation device 605. The control unit 601 controls the operation of the simulation test system for portable objects, including setting operating parameters according to the movement of the portable device driven by the swing of the upper arm of an average person, and the control unit 601 causes the swing drive device 603 to perform a forward and backward swing movement according to the operating parameters.

[0044] For reference Figure 7The device schematic diagram shown in the figure shows a test platform 70, equipped with a second support structure 700, provided with a swing drive device 701, and then connected to an arm simulation device 703 that simulates arm movement through a pivot structure 702. The arm simulation device 703 is used to hang a handle 705, and the handle 705 is connected to a handheld test object 707.

[0045] According to the embodiment, a servo motor module is provided in the swing driving device 701, and the servo motor module is connected to the arm simulation device 703 via a pivot structure 702. Figure 6 The control unit in the display system controls the servo motor module to drive the arm simulation device 703 to perform a forward and backward swinging motion at a certain angle and an up and down motion with a certain amplitude according to the operating parameters, and according to a test requirement (involving the strength requirements of the handle 705 and related fulcrums), a test number and a duration are set through the control unit to repeatedly control the arm simulation device 703 to perform the forward and backward swinging motion.

[0046] For reference Figure 8 In the embodiment shown, the simulation test system can simultaneously run a simulation test system for shoulder-carried objects and a simulation test system for hand-held objects, so as to test electronic devices with shoulder straps and electronic devices with handles. As shown in the figure, the system realizes the integrated operation of the simulation test system through a human-machine interface 800.

[0047] The operator of the operating system or the automatic control system can control the operation of the vertical drive device 801, the horizontal drive device 803 and the swing drive device 807 through the human-machine interface 800. According to the above embodiment, the vertical drive device 801 and the horizontal drive device 803 are controlled to drive the humanoid jig 805, such as a carrying device with a shoulder strap and a shoulder-carrying test object connected, and the shoulder-carrying object simulation test is performed according to the operation parameters; on the other hand, the swing drive device 807 is controlled to drive the arm jig 809, such as an arm simulation device with a handle and a hand-carrying test object connected, and the hand-carrying object simulation test is performed according to the operation parameters.

[0048] For the simulation test of shoulder-carrying objects, the operation process can be referred to Fig. 9 The flowchart of the operation embodiment of the simulation test system is shown.

[0049] For the simulation test of the shoulder-carrying object, the initialization operation is performed at the beginning (step S901), and the object to be tested is connected to the test position of the simulation test system, including attaching the strap to the humanoid fixture and connecting the shoulder-carrying test object through the hook. Then, according to the test requirements, the reciprocating speed of the linear motor in the vertical drive device is set (step S903), the left and right rotation angle of the servo motor in the horizontal drive device is set (step S905), and the test tilt angle of the humanoid fixture is adjusted (step S907).

[0050] Afterwards, the action timing and optimization settings can be adjusted for other details of the human body simulation test (step S909), and the test times and duration can be set according to the test requirements (step S911). Then, the test is started (step S913) and the test results are generated (step S915).

[0051] For simulation tests on portable objects, please refer to Fig.10 The flowchart of the operation embodiment of the simulation test system is shown.

[0052] For the simulation test of the handheld object, the object to be tested is connected to the test position of the simulation test system (step S101), including installing the hand strap connected to the handheld test object on the arm simulation device of the system, adjusting the test angle of the servo motor in the swing drive device (step S103), and setting the swing angle and speed of the servo motor (step S105).

[0053] Afterwards, the system adjusts the action sequence and optimizes the settings (step S107), and sets the test times and duration according to the test requirements (step S109). After the test is started (step S111), the test results are generated (step S113).

[0054] The test results generated by the above embodiments can effectively evaluate the strength and tolerance of the straps, hooks and other parts of a specific product. Repeated tests can also improve product quality to meet the needs of various scenarios.

[0055] In summary, according to the embodiments of the simulation test system for carrying objects on shoulders or in hands, simulation tests are conducted on the related straps, hooks and other structures of people carrying electronic devices on shoulders or in hands, and precise tests on the structural strength are conducted by simulating the actual movement of the human body to achieve a simulation composite test, including using a linear motor to adjust the vertical upward and downward speeds respectively to simulate the up and down movement of the body when running, and using a servo motor and related fixtures to simulate the twisting movement of the lower body of the human body. In addition, the body inclination angle, the arm swing speed and swing amplitude are adjusted to simulate the swinging situation of the handheld device, so as to conduct a simulation test closer to the actual situation.

[0056] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the scope of the claims of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention description and drawings are included in the scope of the claims of the present invention.

Claims

1. A simulation test system for carrying objects on shoulders, characterized in that: The system comprises: a control unit; and A carrying unit, electrically connected to the control unit, provided with a carrying device for attaching a shoulder strap, the shoulder strap being connected to a back or side test object through at least one hook, wherein the carrying device is connected to a fixed bracket between a vertical driving device and a horizontal driving device disposed on a first supporting structure; The control unit controls the vertical driving device in the carrying unit to perform vertical up and down movement, and controls the horizontal driving device to perform horizontal swing movement.

2. The simulation test system for carrying an object on the shoulder as claimed in claim 1, characterized in that: The first supporting structure is provided with an elongated groove, and the vertical driving device is provided with a linear motor module in the elongated groove. The linear motor module drives the supporting device to perform vertical movement with a transmission structure according to a timing diagram simulating a human running state, and performs vertical back and forth movement with a vertical amplitude, and determines the time the supporting device stays at the lowest point and the time it is moving according to a time ratio.

3. The simulation test system for carrying a subject on the shoulder as claimed in claim 2, characterized in that: The horizontal driving device is provided with a servo motor module on the first supporting structure, and the servo motor module drives the bearing device to swing horizontally and repeatedly left and right through the fixed bracket.

4. The simulation test system for carrying a subject on the shoulder as claimed in claim 3, characterized in that: According to the timing diagram of the simulated person's running state, the control unit controls the vertical driving device to drive the supporting device to make the left and right feet of the simulated person step on the ground to form a support period, and the left and right feet leave the ground to form a flight period; at the same time, the control unit controls the horizontal driving device to drive the supporting device to swing to the left, swing to the right, and return to the original position horizontally corresponding to the support period and the flight period.

5. The simulation test system for carrying a subject on the shoulder according to any one of claims 2 to 4, characterized in that: According to the timing diagram of the running state of the simulated person, the control unit controls the vertical driving device to perform vertical movement at a reciprocating speed, and controls the horizontal driving device to perform left and right swing at a swing angle and an angular velocity.

6. The simulation test system for carrying a subject on the shoulder as claimed in claim 5, characterized in that: The bearing device simulates a person's running posture and is inclined at an angle to the ground.

7. The simulation test system for carrying a subject on the shoulder as claimed in claim 5, characterized in that: According to a test requirement, a test number and a duration are set by the control unit to repeatedly control the vertical driving device and the horizontal driving device to perform vertical up-and-down movement and horizontal swinging movement.

8. A simulation test system for a portable object, characterized in that: The system comprises: a control unit; and an arm simulation test unit, electrically connected to the control unit, provided with an arm simulation device, used to hang a handle, the handle is connected to a handheld test object, wherein the arm simulation device is pivotally connected to a swing drive device disposed on a second support structure; Wherein, the control unit controls the swing driving device in the arm simulation test unit to perform forward and backward swinging motion.

9. The simulation test system for portable objects as claimed in claim 8, characterized in that: The swing driving device is provided with a servo motor module, which is connected to the arm simulation device via a pivot structure. The control unit controls the servo motor module to drive the arm simulation device to swing forward and backward at a certain angle and move up and down at a certain amplitude.

10. The portable object simulation test system according to claim 8 or 9, characterized in that: According to a test requirement, a test number and a duration are set by the control unit to repeatedly control the swing driving device to perform a forward and backward swing motion.

11. A simulation test system for carrying an object on a shoulder, used for testing an electronic device having a shoulder strap, characterized in that: The system comprises: a control unit; a carrying device for attaching the strap; a vertical driving device, electrically connected to the control unit; and A horizontal driving device is electrically connected to the control unit, wherein the control unit controls the vertical driving device to perform vertical up and down motion, and controls the horizontal driving device to perform horizontal swing motion.

12. A portable object simulation test system for testing an electronic device having a handle, characterized in that: The system comprises: a control unit; an arm simulation device for hanging the handle; and A swing driving device is electrically connected to the control unit, wherein the control unit controls the swing driving device to perform a forward and backward swing motion.