CN107957270B - Motion simulator and testing device comprising same - Google Patents
Motion simulator and testing device comprising same Download PDFInfo
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- CN107957270B CN107957270B CN201610898262.3A CN201610898262A CN107957270B CN 107957270 B CN107957270 B CN 107957270B CN 201610898262 A CN201610898262 A CN 201610898262A CN 107957270 B CN107957270 B CN 107957270B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Abstract
The invention relates to a motion simulator and a test device comprising the same, wherein the motion simulator comprises: a linear motion mechanism having a slider; the driving connecting rod mechanism is provided with a swing arm which can drive the sliding block to generate linear reciprocating displacement; the track simulation mechanism is provided with a rocker arm, the rocker arm is provided with a first end and a second end, the first end of the rocker arm is pivoted on the sliding block, and the rocker arm pivot is connected to a position between the first end and the second end of the rocker arm and can relatively slide in a reciprocating manner along the long axis direction of the rocker arm and is connected with the rocker arm in a relatively rotating manner; when the rocker arm is driven by the sliding block to generate a reciprocating swinging motion, the second end of the rocker arm can generate an elliptic arc-shaped motion track.
Description
Technical Field
The present invention relates to a motion simulator and a test device including the same, and more particularly, to a motion simulator used for detecting a motion sensor of a wearable device such as a sports bracelet or a smart watch, and a test device including the same.
Background
In recent years, a motion sensor (acceleration sensor) is provided in a mobile electronic device such as a smart band or a smart watch to detect human body motion data, and is used in combination with exercise training software or health management software for personal exercise training or health management.
In the development of wearable electronic devices such as smart wristbands and smart watches, it is necessary to test whether the motion sensor can actually sense the motion of the human body. The existing detection modes can be classified into human body test, machine test and the like. The wearable electronic device is worn on a tester and then actually moves by the tester to test whether the motion sensor on the wearable electronic device operates normally. The wearable electronic device is worn on a human body to be tested in a human body testing mode, although the operation accuracy of the motion sensor can be tested most accurately, due to physical limitation of a tester, the wearable electronic device cannot be tested continuously for a long time, and therefore the reliability of the motion sensor of the wearable electronic device cannot be detected after long-term use.
As for the machine test method, the wearable electronic device is mounted on a motion tester for testing. Although the motion testing machine can continuously operate for a long time and can test the reliability of the wearable electronic device for a long time, the conventional motion testing machine can only make a simple motion track (for example, linear reciprocating displacement), but the motion of the hand swing of a human body when walking or running is not a simple linear motion track, and the motion track of the arm swing includes multiple axial acceleration changes, so that the real situation of the human body when moving cannot be simulated by the conventional motion testing machine, so that the motion testing of the wearable electronic device by using a machine testing mode has obvious difference between the obtained testing parameters and the real situation, and the reliability of the testing result is influenced.
Therefore, how to improve the defect that the existing motion testing machine cannot simulate the real situation of human body motion by the improvement of the structural design to improve the testing reliability of the motion sensor of the wearable electronic device has become one of the important issues to be solved by the industry.
Disclosure of Invention
The present invention is directed to a motion simulator capable of simulating an arm motion trajectory and an acceleration curve similar to those of a human body during motion, so as to test a wearable electronic device in a situation similar to that of the wearable electronic device actually worn on an arm of the human body, and a test device including the motion simulator.
An embodiment of the present invention provides a motion simulation apparatus, including: the device comprises a base, a linear motion mechanism, a driving connecting rod mechanism and a track simulation mechanism, wherein the top surface of the base provides a reference plane; the linear motion mechanism comprises a sliding block and a linear guide assembly, the sliding block is arranged on the linear guide assembly, the sliding block can reciprocate on a reference plane along a linear sliding path under the guidance of the linear guide assembly, and the positions of two ends of the sliding block in the displacement of the sliding path are respectively defined as a first end point position and a second end point position; the driving connecting rod mechanism is arranged on the base and positioned at one side edge of the linear motion mechanism, and comprises a swing arm and a driving mechanism; the two ends of the swing arm are respectively provided with a first end and a second end, the first end of the swing arm is pivoted on the base through a swing arm pivot, and the second end of the swing arm is connected with the sliding block through a sliding block pivot; the swing arm is driven by the driving mechanism, can generate reciprocating swing motion with a swing arm pivot as a center, and drives the sliding block to reciprocate between a first end point position and a second end point position through the driving connecting rod mechanism; the track simulation mechanism is arranged on the base and is positioned at the position of the other side edge of the linear motion mechanism relative to the driving connecting rod mechanism, and the track simulation mechanism comprises: a rocker arm, a rocker arm pivot; the two ends of the rocker arm are respectively provided with a first end and a second end, and the first end of the rocker arm is pivoted on the sliding block through the sliding block pivot; the rocker pivot is perpendicular to the reference plane, and the position of the rocker between the first end and the second end of the rocker and the rocker pivot are connected with each other; the rocker arm and the rocker arm pivot are connected with each other in a way of being capable of linearly reciprocating along the long axis direction of the rocker arm, and the rocker arm can generate a rotary motion parallel to the reference plane by taking the rocker arm pivot as a center; when the sliding block is in reciprocating displacement between the first end point position and the second end point position along the sliding path, the first end of the rocker arm is driven by the sliding block, so that the rocker arm can generate reciprocating swing motion with the rocker arm pivot as the center, and the motion path of the second end of the rocker arm in reciprocating swing motion forms a motion track.
In the preferred embodiment of the motion simulator of the invention, the sliding block is provided with a sliding block pivot, the second end of the swing arm is provided with a sliding chute, and the sliding chute is arranged on the second end of the swing arm along the long axis direction of the swing arm; the slider pivot is clamped in the sliding groove, the slider pivot and the second end of the swing arm are connected in a mode of relative sliding along the long axis direction of the swing arm, and the second end of the swing arm and the slider pivot can rotate relatively.
In a preferred embodiment of the motion simulator of the invention, wherein the drive mechanism comprises: a drive motor and a crank member; the driving motor is provided with a rotating shaft center, the center of the crank member is connected to the rotating shaft center, a crank pivot is arranged at the position of the crank member far away from the rotating shaft center, and the crank pivot is connected with the swing arm through a crank sliding sleeve; the swing arm and the crank pivot are connected together in a manner of relative sliding along the long axis direction of the swing arm.
In a preferred embodiment of the motion simulator of the present invention, the crank sliding sleeve is sleeved on the swing arm between the first end and the second end thereof, so that the swing arm can slide linearly in the crank sliding sleeve, and the crank sliding sleeve is connected to the crank pivot and can rotate around the crank pivot.
In a preferred embodiment of the motion simulator of the present invention, the trajectory simulation mechanism further includes a rocker sliding sleeve, the rocker sliding sleeve is sleeved outside the rocker, so that the rocker can slide in the rocker sliding sleeve in a reciprocating manner, the rocker sliding sleeve is disposed at one end of the rocker pivot, and the rocker sliding sleeve can rotate around the rocker pivot.
In a preferred embodiment of the motion simulator of the present invention, the base is provided with a plurality of positioning holes, and one end of the rocker pivot near the base can be selectively inserted into the plurality of positioning holes; the positions of the positioning holes are respectively distributed on the base along the direction vertical to or parallel to the sliding path; the manner in which the rocker pivot shaft can be selectively inserted into the different plurality of positioning holes thereby adjusting the position at which the rocker pivot shaft is positioned on the base.
The invention also provides a testing device for testing a motion sensor of a wearable electronic device, comprising: the top surface of the base provides a reference plane; the linear motion mechanism comprises a sliding block and a linear guide assembly, the sliding block is arranged on the linear guide assembly, the sliding block can be guided by the linear guide assembly to reciprocate on a reference plane along a linear sliding path, and the positions of two ends of the sliding block in the displacement of the sliding path are respectively defined as a first end point position and a second end point position; the driving connecting rod mechanism is arranged on the base and positioned at one side edge of the linear motion mechanism, and comprises a swing arm and a driving mechanism; the two ends of the swing arm are respectively provided with a first end and a second end, the first end of the swing arm is pivoted on the base through a swing arm pivot, and the second end of the swing arm is connected with the sliding block through a sliding block pivot; the swing arm is driven by the driving mechanism, can generate reciprocating swing motion with a swing arm pivot as a center, and drives the sliding block to reciprocate between a first end point position and a second end point position through the driving connecting rod mechanism; a track analog mechanism, the track analog mechanism sets up the position that is located linear motion mechanism for another side of drive link mechanism on the base, and track analog mechanism includes: a rocker arm, a rocker arm pivot; the two ends of the rocker arm are respectively provided with a first end and a second end, and the first end of the rocker arm is pivoted on the sliding block through the sliding block pivot; the rocker pivot is perpendicular to the reference plane, and the position of the rocker between the first end and the second end of the rocker and the rocker pivot are connected with each other; the rocker arm and the rocker arm pivot are connected with each other in a way of being capable of linearly reciprocating along the long axis direction of the rocker arm, and the rocker arm can generate a rotary motion parallel to the reference plane by taking the rocker arm pivot as a center; when the sliding block is in reciprocating displacement between the first end point position and the second end point position along the sliding path, the first end of the rocker arm is driven by the sliding block, so that the rocker arm can generate reciprocating swing motion by taking a rocker arm pivot as a center, and a motion path of the second end of the rocker arm in reciprocating swing forms a motion track; the fixed seat is arranged at the second end of the rocker arm and used for fixing the wearable electronic device; when the rocker arm is driven by the slider, the second end of the rocker arm can generate a motion track, so that the wearable electronic device on the fixing seat also generates the motion track, and the motion sensor of the wearable electronic device senses the change of the acceleration.
In the preferred embodiment of the testing device of the present invention, the motion trajectory is an arc trajectory close to a quarter ellipse.
In a preferred embodiment of the testing device of the present invention, the position of the fixing base fixed on the rocker arm can be adjusted along the long axis direction of the rocker arm.
The invention has the advantages that the invention can generate the motion track which is close to the swing of the arm when the human body moves and the approximate acceleration curve, thereby being capable of testing the wearable electronic device for a long time under the condition of being close to the actual use state, and improving the testing accuracy and the reliability of the motion sensor of the wearable electronic device.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description, and are not intended to be limiting.
Drawings
Fig. 1 is a perspective assembly view of a motion simulator and a testing device thereof according to the present invention.
Fig. 2 is a top view of the motion simulator and the testing device thereof according to the present invention.
Fig. 3 is a schematic action diagram of a motion trajectory generated by the motion simulator of the present invention.
Fig. 4 is a perspective assembly view of the motion simulator and the testing device thereof according to the present invention, which positions the rocker pivot of the trajectory simulator on the base at different positions.
Fig. 5 is a top view of the motion simulator and the testing device thereof according to the present invention, which positions the rocker pivot of the trajectory simulator at different positions on the base.
Fig. 6 shows acceleration curves generated when the arm swings during a human body exercise.
FIG. 7 is a diagram illustrating acceleration curves generated by an embodiment of the motion simulator of the present invention.
Detailed Description
As shown in fig. 1 to 3, the present invention provides a motion simulation apparatus and a test apparatus thereof, which are used to simulate a motion trail and an acceleration curve generated by arm swinging during human body motion, so as to test whether the operation of a motion sensor of a wearable electronic device such as a sports bracelet and a smart watch is correct.
The motion simulator and the test device thereof of the invention comprise: a base 10, a linear motion mechanism 20, a driving linkage mechanism 30 and a trajectory simulation mechanism 50. In this embodiment, the base 10 is a plate body, the top surface of the base 10 provides a reference plane 11, and the linear motion mechanism 20, the driving link mechanism 30, the driving mechanism 40, and the trajectory simulation mechanism 50 are collectively mounted on the reference plane 11.
The linear motion mechanism 20 includes a linear guide element 21 and a slide 22, in this embodiment, the linear guide element 21 is a linear slide rail, the slide 22 is disposed on the linear guide element 21 and can be guided by the linear guide element 21 to reciprocate along a linear slide path 24 on the reference plane 11, and the slide 22 reciprocates along the slide path 24 and can reciprocate between a first end position 221 and a second end position 222 (as shown in fig. 2 and 3).
The slider 22 of the linear motion mechanism 20 is capable of being driven by a driving linkage 30 to generate a reciprocating displacement motion along the sliding path 24, the driving linkage 30 is disposed at one side of the linear motion mechanism 20, and the driving linkage 30 includes: a swing arm 31 and a driving mechanism 40. The swing arm 31 has a first end 311 and a second end 312 at two ends thereof, wherein the first end 311 is connected to a swing arm pivot 32, and is disposed on the base 10 at a position far away from the linear motion mechanism 20 through the swing arm pivot 32. The second end 312 of the swing arm 31 is adjacent to the linear motion mechanism 20, and the second end 312 of the swing arm 31 is connected to the slider 22 through a slider pivot 23.
Since the second end 312 of the swing arm 31 is provided with the slide groove 34 in a direction parallel to the long axis of the swing arm 31 and the slider pivot 23 is engaged with the slide groove 34, the slider pivot 23 and the second end 312 of the swing arm 31 are connected to each other so as to be slidable relative to each other in the long axis direction of the swing arm 31, and the second end 312 of the swing arm 31 and the slider pivot 23 are rotatable relative to each other.
As shown in fig. 2 and 3, in this embodiment, the driving mechanism 40 includes a driving motor 41 and a crank member 42. The driving motor 41 has a rotating shaft 43, in this embodiment, the driving motor 41 is disposed below the base 10, and the rotating shaft 43 penetrates above the reference plane 11 of the base 10 and is perpendicular to the reference plane 11. In this embodiment, the crank member 42 is a turntable, and the center of the crank member 42 is connected to the rotation axis 43, so that the crank member can be driven by the driving motor 41 to rotate. The crank member 42 is provided with a crank pivot 44 at a position away from the rotation axis 43, and the crank pivot 44 is connected with the swing arm 31 through a crank sliding sleeve 33.
As shown in fig. 1 and 2, the crank sliding bush 33 is fitted to the position of the swing arm 31 between the first end 311 and the second end 312 of the swing arm 31, and the crank sliding bush 33 and the swing arm 31 are relatively slidable, and the crank sliding bush 33 can rotate around the crank pivot 44, so that the swing arm 31 can be reciprocally displaced along the long axis direction of the swing arm 31, and can be connected to the crank member 42 to rotate around the crank pivot 44.
As shown in fig. 3, when the crank member 42 is driven to rotate by the rotation shaft 43, the crank sliding sleeve 33 can drive the swing arm 31 to generate a reciprocating swing motion about the swing arm pivot 32, and the angular positions of the swing arm 31 driven by the crank member 42 to the extreme positions at both sides of the swing stroke are respectively defined as a first angular position a1 and a second angular position a 2.
In this embodiment, the driving mechanism 40 is a speed-return link mechanism, as shown in fig. 3, when the crank member 42 rotates in the counterclockwise direction, the swing arm 31 can be driven to swing from the first angular position a1 toward the second angular position a2, and then swing from the second angular position a2 toward the first angular position a1, so that the swing arm 31 can swing back and forth between the first angular position a1 and the second angular position a 2. When the swing arm 31 swings to the first angular position a1, the slider 22 can also be driven by the swing arm 31 to move to the first end position 221, and when the swing arm 31 swings to the second angular position a2, the slider 22 is driven by the swing arm 31 to swing to the second end position 222.
For the sake of convenience of explanation, in this embodiment, when the crank member 42 rotates in the counterclockwise direction, and the swing arm 31 swings from the first angular position a1 to the second angular position a2, the forward stroke is defined as the forward stroke, in which the forward rotation angle of the crank member 42 is α 1 indicated in fig. 3. While the stroke of the swing arm 31 swinging from the second angular position a2 to the first angular position a1 is defined as a return stroke in which the return stroke of the crank member 42 is rotated by an angle α 2 indicated in fig. 3.
Due to the characteristics of the quick return mechanism, the rotation angle of the crank member 42 may be different between the forward stroke and the return stroke of the swing arm 31. in the embodiment shown in fig. 3, the rotation angle α 1 of the crank member 42 during the forward stroke is greater than the rotation angle α 2 of the return stroke, so that if the crank member 42 rotates at the same angular velocity, the time consumed by the swing arm 31 during the forward stroke is greater than the time consumed by the return stroke. Therefore, when the slider 22 is driven by the swing arm 31, the moving speed V1 from the first end position 221 to the second end position 222 during the forward stroke is slower than the returning speed V2 from the second end position 222 to the first end position 221 during the returning stroke, so that the reciprocating motion of the slider 22 exhibits a slow forward speed V1 and a fast returning speed V2.
The driving linkage mechanism 30 and the linear motion mechanism 20 are matched with each other, so that the effect that the speeds of the forward stroke and the return stroke of the slider 22 are different when the slider moves in a linear reciprocating manner is achieved, and the actual situation that the speeds are different when the arm swings back and forth when people move is met.
The slide block 22 of the linear motion mechanism 20 is driven by the driving link mechanism 30 to generate linear reciprocating motion, and then the slide block 22 drives the track simulation mechanism 50 to generate motion. The trajectory simulation mechanism 50 is provided on the base 10 at a position on the other side of the linear motion mechanism 20 with respect to the drive link mechanism 30. As shown in fig. 3 and 4, the trajectory simulation mechanism 50 includes: a rocker arm 51, a rocker arm pivot 52. The two ends of the rocker arm 51 have a first end 511 and a second end 512, respectively, wherein the first end 511 of the rocker arm 51 is pivotally connected to the top surface of the slider 22 through the slider pivot 23, so that the first end 511 of the rocker arm 51 can displace along with the slider 22. The rocker arm 51 is connected to the rocker pivot 52 at a location between the first end 511 and the second end 512 by a rocker slide 53. As shown in fig. 1, the reference plane 11 is provided with a plurality of positioning holes 12, and the bottom end of the rocker pivot 52 can be selectively inserted into one of the plurality of positioning holes 12, thereby positioning the rocker pivot 52 on the base 10 in a direction perpendicular to the reference plane 11.
In this embodiment, the rocker sliding sleeve 53 is disposed at the top end of the rocker pivot 52, thereby enabling the rocker sliding sleeve 53 to rotate about the rocker pivot 52. Meanwhile, the rocker sliding sleeve 53 is sleeved outside the rocker arm 51, and the rocker arm 51 can slide in the rocker sliding sleeve 53 in a reciprocating manner, so that the rocker pivot 52 and the rocker arm 51 can be connected with each other in a linear reciprocating manner along the long axis direction of the rocker arm 51, and the rocker arm 51 can generate a rotating motion parallel to the reference plane 11 by taking the rocker pivot 52 as the center.
Referring to fig. 4, the second end 512 of the swing arm 51 is further provided with a fixing seat 54, the fixing seat 54 can be provided with a wearable electronic device 60 to be tested, and when the swing arm 51 is driven by the slider 22, the second end 512 of the swing arm 51 can generate a motion track C1 (as shown in fig. 3), so that the wearable electronic device 60 on the fixing seat 54 can also move along with the fixing seat 54 on the second end 512 of the swing arm 51.
In this embodiment, the position of the wearable electronic device 60 disposed on the fixed seat 54 can be adjusted along the long axis direction of the swing arm 51, or the position of the fixed seat 54 can be adjusted along the long axis direction of the swing arm 51, so that the relative position of the wearable electronic device 60 with respect to the swing axis of the swing arm 51 can be changed, and therefore, the movement path and speed of the wearable electronic device 60 driven by the swing arm 51 are changed.
As shown in fig. 3, when the slider 22 generates a linear reciprocating displacement, the rocker arm 51 can be further driven by the slider pivot 23 to generate a swinging motion centering on the rocker arm pivot 52, and during the swinging process of the rocker arm 51, the first end 511 of the rocker arm 51 linearly displaces along the sliding path 24, and when the position of the first end 511 moving on the sliding path 24 changes, the distance between the first end 511 of the rocker arm 51 and the rocker arm pivot 52 changes, so that the motion trajectory generated by the second end 512 of the rocker arm 51 includes a circular motion swinging centering on the rocker arm pivot 52 and a vector varying along the long axis direction of the rocker arm 51, and the motion trajectory C1 formed by the second end 512 of the rocker arm 51 forms an arc trajectory close to a quarter ellipse. The wearable electronic device 60 is disposed on the fixing base 54, so that the wearable electronic device 60 can reciprocate along the motion trajectory C1 along with the movement of the swing arm 51, and the motion sensor of the wearable electronic device 60 senses the change of the acceleration.
As shown in fig. 3, the motion simulator of the present invention can generate a motion trajectory C1 close to a quarter of an elliptical arc line by combining the trajectory simulation mechanism 50 and the driving link mechanism 30, and the speeds of the forward stroke and the return stroke are not equal to each other, so that the motion trajectory 1 generated by the motion simulator of the present invention can be similar to the speed change of slow forward and fast backward movement when the arm swings when a person moves, and has multiple axial accelerations.
Because the motion simulation device of the invention has the characteristics, compared with the existing test machine, the motion track C1 and the acceleration curve simulated by the motion simulation device of the invention are more approximate to the swing track and the acceleration change situation of the arm when the human body moves, so that the tested electronic device can be tested under the condition that the tested electronic device is more approximate to the situation that the tested electronic device is actually worn on the human body, and the test result is more correct.
As shown in fig. 4 and 5, the motion simulation apparatus of the present invention can further adjust the motion trajectory, the speed and the frequency of the motion, so as to simulate the following conditions: the motion trail and the acceleration thereof under various motion types such as running, fast walking and the like.
The adjustment mode of the movement locus of the present invention is adjusted by changing the position where the rocker pivot 52 of the locus simulation mechanism 50 is provided. As shown in fig. 2 and 5, the base 10 of the present invention is provided with a plurality of positioning holes 12, and the positions of the positioning holes 12 are distributed on the base 10 along a direction perpendicular or parallel to the sliding path 24, respectively, so as to form an arrangement manner such as a rectangular array. One end of the rocker pivot 52 near the base 10 can be selectively inserted into each of the different positioning holes 12, thereby changing the position of the rocker pivot 52 on the base 10.
When the rocker pivots are positioned in different positioning holes 12, the motion tracks generated by the rocker 51 will be different, and each motion track has its motion characteristics, which can represent the sex, height, weight or special movement of the sporter. For example, as shown in fig. 3, a motion trajectory C1 is generated by the trajectory simulation mechanism 50 in a state where the rocker pivot 52 is positioned at the position of the rocker pivot 52 of the embodiment shown in fig. 1 and 2; in the embodiment shown in fig. 4 and 5, the rocker pivot 52 is inserted into a different positioning hole 12, so that the positioning position of the rocker pivot 52 is different from that of the embodiment shown in fig. 1 and 2, and another motion trajectory C2 is generated, which is different from the motion trajectory C1 shown in fig. 3.
The motion simulator of the present invention adjusts the speed and frequency of the operation by changing the rotational speed of the drive motor 41 that drives the link mechanism 30. In this embodiment, the driving motor 41 may be a motor with an adjustable rotation speed, and the driving motor 41 can be further connected to a control device (not shown), and the rotation speed of the driving motor 41 can be further adjusted by the control device. When the driving motor 41 rotates at different rotational speeds, the action frequency and the reciprocating speed of the motion simulator of the present invention can be changed, and thus it is possible to conform to various situations of motion states.
Therefore, the present invention can change the motion trail generated by the trail simulation mechanism 50 by positioning the rocker pivot 52 of the trail simulation mechanism 50 in different positioning holes 12 and adjusting the rotation speed of the driving motor 41, so that the motion simulation device of the present invention can further simulate various conditions such as different motion types (e.g. running, fast walking, mountain climbing, etc.) or different stature exercisers (e.g. different heights, step lengths, arm amplitudes), etc., and can test the wearable electronic device 60 in different modes and improve the accuracy of the test.
For example, as shown in fig. 6 and 7, an acceleration curve G1 measured by wearing an electronic device on the arm of a human body for exercise and an acceleration curve G2 simulated by a computer using the device of the present invention are shown. The device of the invention can generate the acceleration curve characteristics which are similar to those actually generated when the human body moves, so that when the wearing electronic device 60 is tested by using the device of the invention, the actual use situation that the wearing electronic device is worn on the human body can be approached, and the wearing electronic device 60 can test the motion sensor by the acceleration curve which is close to the actual use state.
In summary, the motion simulation device of the present invention has the advantages that the motion simulation device of the present invention can generate the limb motion trajectory and the acceleration curve close to the human motion, so that the wearable electronic device 60 can be tested under the condition close to the manual test worn on the human body, and the test data of the wearable electronic device is closer to the actual state. Moreover, the motion simulator of the invention can be used for repeatedly testing the wearable electronic device 60 for a long time, thereby overcoming the defect that the long-time repeated testing cannot be carried out in a manual testing mode, being beneficial to improving the testing reliability of the wearable electronic device and reducing the manpower required by the testing operation.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that all equivalent technical changes made by using the contents of the present specification and the accompanying drawings are included in the scope of the present invention.
Claims (15)
1. A motion simulator, characterized in that the motion simulator comprises:
the top surface of the base provides a reference plane;
the linear motion mechanism comprises a sliding block and a linear guide assembly, the sliding block is arranged on the linear guide assembly, the sliding block is guided by the linear guide assembly to be capable of reciprocating displacement on the reference plane along a linear sliding path, and the positions of two ends of the sliding block in the displacement of the sliding path are respectively defined as a first end point position and a second end point position;
the driving connecting rod mechanism is arranged on the base and positioned at one side edge of the linear motion mechanism, and comprises a swinging arm and a driving mechanism; the two ends of the swing arm are respectively defined as a first end and a second end, the first end of the swing arm is pivoted on the base through a swing arm pivot, and the second end of the swing arm is connected with the sliding block through a sliding block pivot; the swing arm is driven by the driving mechanism, can generate reciprocating swing motion with the swing arm pivot as a center, and drives the sliding block to reciprocate between the first end point position and the second end point position through the driving link mechanism;
a track simulation mechanism disposed on the base at a position on the other side of the linear motion mechanism relative to the drive linkage, the track simulation mechanism comprising: a rocker arm, a rocker arm pivot; the two ends of the rocker arm are respectively defined as a first end and a second end, and the first end of the rocker arm is pivoted on the sliding block through the sliding block pivot; the rocker pivot is perpendicular to the reference plane, and the rocker pivot and a location of the rocker between the first and second ends of the rocker are interconnected; the rocker arm and the rocker arm pivot are connected with each other in a manner of being capable of linearly reciprocating along the long axis direction of the rocker arm, and the rocker arm can generate a rotary motion parallel to the reference plane by taking the rocker arm pivot as a center;
when the sliding block is in reciprocating displacement between the first end point position and the second end point position along the sliding path, the first end of the rocker arm is driven by the sliding block, so that the rocker arm can generate reciprocating swing motion with the rocker arm pivot as the center, and the motion path of the second end of the rocker arm in reciprocating swing forms a motion track.
2. The motion simulator of claim 1, wherein said slider is provided with said slider pivot and said second end of said swing arm is provided with a slide slot, said slide slot being disposed on said second end of said swing arm along a long axis of said swing arm; the slider pivot is engaged with the slide groove, the slider pivot and the second end of the swing arm are connected to each other so as to be capable of sliding relative to each other along the longitudinal direction of the swing arm, and the second end of the swing arm and the slider pivot are capable of rotating relative to each other.
3. The motion simulator of claim 2, wherein the drive mechanism comprises: a drive motor and a crank member; the driving motor is provided with a rotating shaft center, the center of the crank member is connected to the rotating shaft center, a crank pivot is arranged at the position of the crank member far away from the rotating shaft center, and the crank pivot is connected with the swing arm through a crank sliding sleeve; the swing arm and the crank pivot are connected together in a manner of relative sliding along the long axis direction of the swing arm.
4. The motion simulator of claim 3, wherein said crank runner is engaged between said first and second ends of said swing arm such that said swing arm is capable of sliding linearly within said crank runner, and said crank runner is connected to said crank pivot and capable of rotating about said crank pivot.
5. The motion simulator of claim 1, wherein said trajectory simulation mechanism further comprises a rocker sliding sleeve, said rocker sliding sleeve is sleeved on the outer side of said rocker arm, such that said rocker arm can slide in said rocker sliding sleeve in a reciprocating manner, and said rocker sliding sleeve is disposed at one end of said rocker pivot, and said rocker sliding sleeve can rotate around said rocker pivot.
6. The motion simulator of claim 5, wherein said base is provided with a plurality of positioning holes, and wherein an end of said rocker pivot proximate said base is selectively insertable into said plurality of positioning holes; the positions of the positioning holes are respectively distributed on the base along the direction vertical to or parallel to the sliding path; the rocker pivot shaft can be selectively inserted into different positioning holes, so that the position of the rocker pivot shaft on the base is adjusted.
7. A testing device comprising the motion simulator of claim 1 for testing a motion sensor of a wearable electronic device, wherein the testing device further comprises:
the fixed seat is arranged at the second end of the rocker arm and used for fixing the wearable electronic device;
when the rocker arm is driven by the slider, the second end of the rocker arm can generate a motion track, so that the wearable electronic device on the fixed seat also generates the motion track, and the motion sensor of the wearable electronic device senses the change of the acceleration.
8. The test device of claim 7, wherein the motion profile is an arc profile approximating a quarter ellipse.
9. The testing apparatus as claimed in claim 7, wherein the slider is provided with the slider pivot, and the second end of the swing arm is provided with a sliding slot, the sliding slot being disposed on the second end of the swing arm along the long axis direction of the swing arm; the slider pivot is engaged with the slide groove, the slider pivot and the second end of the swing arm are connected to each other so as to be capable of sliding relative to each other along the longitudinal direction of the swing arm, and the second end of the swing arm and the slider pivot are capable of rotating relative to each other.
10. The test device of claim 7, wherein the drive mechanism comprises: a drive motor and a crank member; the driving motor is provided with a rotating shaft center, the center of the crank member is connected to the rotating shaft center, a crank pivot is arranged at the position of the crank member far away from the rotating shaft center, and the crank pivot is connected with the swing arm through a crank sliding sleeve; the swing arm and the crank pivot are connected together in a manner of relative sliding along the long axis direction of the swing arm, and the swing arm can rotate by taking the crank pivot as a center.
11. The test apparatus of claim 10, wherein the drive motor is coupled to a controller, thereby controlling the rotational speed of the drive motor.
12. The test device as claimed in claim 10, wherein the crank bush is fitted to the swing arm at a position between the first end and the second end thereof, such that the swing arm can slide linearly in the crank bush, and the crank bush is connected to the crank pivot and can rotate about the crank pivot.
13. The testing device as claimed in claim 7, wherein the trajectory simulation mechanism further comprises a rocker sliding sleeve, the rocker sliding sleeve is sleeved on the outer side of the rocker so that the rocker can slide in the rocker sliding sleeve in a reciprocating manner, the rocker sliding sleeve is disposed at one end of the rocker pivot, and the rocker sliding sleeve can rotate around the rocker pivot.
14. The test apparatus as claimed in claim 7, wherein the base is provided with a plurality of positioning holes, and an end of the rocker pivot near the base is selectively inserted into the plurality of positioning holes; the positions of the positioning holes are respectively distributed on the base along the direction vertical to or parallel to the sliding path; the rocker pivot shaft can be selectively inserted into different positioning holes, so that the position of the rocker pivot shaft on the base is adjusted.
15. The testing apparatus of claim 7, wherein the position at which the mounting block is fixed to the swing arm is adjustable along the long axis of the swing arm.
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| CN107957270B true CN107957270B (en) | 2021-03-16 |
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| CN111735476B (en) * | 2020-06-30 | 2022-05-20 | 北京小米移动软件有限公司 | Test apparatus and motion control method |
| CN114440932B (en) * | 2022-02-18 | 2024-03-15 | 北京柏瑞安电子技术有限公司 | Wearable bluetooth product motion step number analogue means |
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