JP4146370B2 - Vibration test equipment - Google Patents

Description

  The present invention relates to a vibration test apparatus for testing the behavior of a subject by applying vibration to the walking surface while the subject is walking or running on the walking surface.

  A conventional vibration test apparatus includes a simulated guest room that simulates a guest room of an actual vehicle, a shaker that shakes the simulated guest room, a shake control device that controls the shaker, and a scenario in which an imaginary track and a speed pattern are set. A creation device and a simulator control device for controlling the oscillation control device based on a scenario file created by the scenario creation device are provided (see, for example, Patent Document 1). In such a conventional vibration test apparatus, a simulated motion generated when traveling on an imaginary track at an arbitrary speed is reproduced, and the simulated cabin is shaken to evaluate the comfort of passengers in the train. .

JP 2003-295750 A

  Conventionally, the riding comfort of a railway vehicle has been mainly evaluated from the sitting position for the evaluation of comfort, and the allowable limit is evaluated mainly from the standing position. For this reason, in a conventional vibration testing apparatus, riding comfort and the like are evaluated and analyzed in a basic passenger riding posture such as sitting or standing. In recent years, railway users and railway companies have raised problems such as difficulty in walking and wobbling when passengers and crews walk in the train as the speed of the railway increases. According to the questionnaire survey, the number of railway users who experienced difficulty walking in the train reached nearly 70% in the suburban trains, and more than 40% in the limited express trains and the Shinkansen (hereinafter referred to as the "honor trains"). Yes. Passengers walking in a running train may move to a deck to use a toilet or mobile phone on an excellent train, or move toward a vacant seat or a net shelf on a nearby train. . Most passengers, regardless of whether they are nearby trains or high-end trains, start moving toward the exit before the train arrives at the disembarkation station. It can be said that there is.

  Originally, the riding comfort of a railway vehicle should be widely studied for all postures, and what kind of similarities and differences are found between the walking and standing characteristics of the riding comfort against vibration and vibration of the vehicle. It is necessary to clarify whether it exists. However, there are very few examples of studies on riding comfort during walking, and there is no fixed evaluation method. For this reason, it is important to correctly evaluate the influence of vehicle vibration and vibration on passengers walking in the train, to examine the ride comfort during walking, and to use it for vibration management of trains.

  The subject of this invention is providing the vibration test apparatus which can add a vibration to this test subject effectively in order to evaluate the influence of the vibration which a test subject receives at the time of a walk or a run.

The present invention solves the above-mentioned problems by the solving means described below.
In addition, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this embodiment.
The invention of claim 1 is a vibration testing apparatus for testing the behavior of the subject by applying vibration to the walking surface while causing the subject (M) to walk or run on the walking surface (6a). A calculation means (9) for calculating a walking cycle (T) of the subject based on a detection result of a detection means (8) for detecting a contact state between the foot (L _R , L _L ) and the walking surface; based on the calculation result of the means, and control means (10) for controlling the vibration, of the walking surface to apply vibration exciting means (7), the control means, one of the legs of the subject (L _R ) The vibration means is adjusted so that the walking surface vibrates between the time when the heel (H _R ) contacts the walking surface and the toe of the foot (T _R ) moves away from the walking surface. It is a vibration test apparatus (2) characterized by controlling operation .

According to a second aspect of the invention, in the vibration testing apparatus according to claim 1, wherein the detecting means comprises at least a contact between one or both of the heel of the foot (H _R, H _L) and the walking surface of the subject And a contact state between the toes (T _R , T _L ) of the foot and the walking surface.

  According to a third aspect of the present invention, in the vibration test apparatus according to the first or second aspect, the computing means calculates the future walking cycle of the subject based on the past walking cycle (T) of the subject. The vibration test apparatus is characterized by performing a predictive calculation.

  According to a fourth aspect of the present invention, in the vibration test apparatus according to any one of the first to third aspects, the vibration means is configured such that the belt surface of the treadmill (6) is the walking surface. The vibration test apparatus is characterized by applying vibration to the treadmill.

According to a fifth aspect of the present invention, in the vibration test apparatus according to any one of the first to fourth aspects, the control means is configured such that the heel (H _R ) of one of the legs (L _R ) of the subject. The vibration is characterized in that the vibration control means controls the vibration so that the walking surface vibrates between the time when it comes into contact with the walking surface and the time when the toe of the foot (T _R ) moves away from the walking surface. Test equipment.

A fifth aspect of the present invention, in the vibration testing apparatus according to any one of claims 1 to 4, wherein, the heel (H _R) of one of the feet of the subject (L _R) Between the time when the toe (T _R ) is separated from the walking surface after the contact with the walking surface, the walking surface moves from the one foot toward the other foot (L _L ). In addition, the vibration testing apparatus is characterized in that the vibration control means is controlled in operation.

According to a sixth aspect of the present invention, in the vibration test apparatus according to any one of the first to fifth aspects, the photographing means (11, 12) for photographing the state of the subject based on the calculation result of the calculating means. A vibration test apparatus.

  According to the present invention, it is possible to effectively apply vibration to the subject in order to evaluate the influence of vibration that the subject receives during walking or running.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is an external view of a riding comfort evaluation system including a vibration test apparatus according to an embodiment of the present invention. FIG. 2 is a configuration diagram of a riding comfort evaluation system including a vibration test apparatus according to an embodiment of the present invention.
A subject M shown in FIG. 1 is a subject of a vibration test, and vibration is applied by the vibration test apparatus 2. The subject M walks on the walking surface 6a with the left and right feet L _R and L _L landing on the walking surface 6a. The reflector R is a marker that reflects infrared rays, and is attached to a joint such as the shoulder or knee of the subject M in order to detect the posture of the subject M on the walking surface 6a.

  A riding comfort evaluation system 1 shown in FIGS. 1 and 2 is a system for evaluating the riding comfort of a subject M who is walking or running in a moving body. The riding comfort evaluation system 1 measures the behavior of the subject M by vibrating the simulated cabin 3 while moving the subject M in the simulated cabin 3, and has difficulty walking when walking in a moving body such as a railway vehicle. The ride comfort is evaluated by analyzing the wandering. The riding comfort evaluation system 1 includes a vibration test apparatus 2 and a motion analysis apparatus 16.

  The vibration test apparatus 2 is an apparatus for testing the behavior of the subject M by applying vibration to the walking surface 6a while causing the subject M to walk or run on the walking surface 6a. As shown in FIGS. 1 and 2, the vibration test apparatus 2 includes a simulated cabin 3, a safety device 4, a test stand 5, a treadmill 6, a vibration device 7, a detection device 8, and a calculation device 9. A control device 10, photographing devices 11 and 12, a switching device 13, a display device 14, a vibration detection device 15, and the like.

  A simulated cabin 3 shown in FIG. 1 is a structure that simulates a cabin of an actual vehicle. The simulated guest room 3 includes a floor surface 3a on which customer service facilities such as a seat used in an actual vehicle are installed. The safety device 4 is means for supporting and protecting the body of the subject M when the subject M walks on the walking surface 6a. The safety harness 4a that suspends the body of the subject M and the safety harness 4a are provided. Supporting columns 4b and the like that are installed on the floor surface 3a are provided. The test stand 5 is a base that fixes and supports the simulated cabin 3, and the simulated cabin 3 is installed on the upper surface of the test bench 5.

  The treadmill 6 is means for moving the walking surface 6 a at an arbitrary speed to cause the subject M to walk on the walking surface 6 a and is installed on the floor surface 3 a of the simulated cabin 3. As shown in FIG. 1, the treadmill 6 includes a walking surface 6a on which the subject M walks, an endless belt 6b whose belt surface forms the walking surface 6a, and a belt that is rotatably disposed at a predetermined interval. A pair of rotating bodies 6c and 6d around which 6b is wound, and a drive motor 6e shown in FIG. 2 for rotating the pair of rotating bodies 6c and 6d are provided. The treadmill 6 moves the belt 6b in the direction of the arrow in the drawing at a predetermined speed based on the operation start signal output from the motion analysis device 16, and forcibly moves the subject M on the walking surface 6a. In this embodiment, the speed control of the treadmill 6 is a synchronous motor control system, and the width of the belt 6b is 75 cm wider than usual in order to secure a clearance in the left-right direction, and the torque is strengthened to reduce the speed (6 km). / h or less) to stabilize the belt drive (speed fluctuation rate 0.1% or less).

  The vibration device 7 is means for applying vibration to the walking surface 6 a and includes a plurality of drive mechanism portions 7 a that drive the test table 5. The vibration exciter 7 expands and contracts the drive mechanism 7a to generate the vibration of the railway vehicle in a simulated manner and shake the test table 5. The vibration device 7 includes, for example, a hydraulic cylinder that drives the test table 5 and a hydraulic circuit that operates the hydraulic cylinder. For example, the vibration device 7 causes vibration generated when an actual train passes through a turnout (point) or when a pendulum type vehicle passes a curve to act in the left-right direction of the body of the subject M. Add to treadmill 6.

FIG. 3 is a plan view showing the arrangement of the detection device of the vibration test apparatus according to the embodiment of the present invention. FIG. 3 is a plan view seen from the back of the legs L _R and L _L of the subject M.
The detection device 8 is means for detecting a contact state between the legs L _R and L _L of the subject M and the walking surface 6a. Detecting device 8, as shown in FIG. 3, the walking foot L _R, L _L toe T _R, and T _L and the state of contact between the walking surface 6a, feet L _R, heel H _R of L _L, and H _L A pressure sensor 8a for detecting a contact state with the surface 6a is provided. The pressure-sensitive sensor 8a is installed on the toe T _R , T _{L in} the shoe sole or shoe of the subject M and the heels H _R , H _{L in} the shoe sole or shoe of the subject M, and both feet L _R, has been installed a total of four to _L L. For example, when the pressure between the toes T _R and T _L or the heels H _R and H _L and the walking surface 6a exceeds a predetermined value, the pressure sensor 8a is electrically energized, and the pressure between them is predetermined. For example, a foot switch that is electrically de-energized when the value is below the value. The pressure sensor 8a detects the contact and separation between the foot L _R , L _L of the subject M and the walking surface 6a in real time to generate an ON / OFF signal, and calculates this ON / OFF signal as a walking timing detection signal. Output to device 9.

FIG. 4 is a diagram for explaining the arithmetic processing of the arithmetic unit of the vibration test apparatus according to the embodiment of the present invention.
The calculation device 9 is a means for calculating the walking cycle of the subject M based on the detection result of the detection device 8. The computing device 9 predicts and calculates the future walking cycle of the subject M based on the past walking cycle T of the subject M. Here, for example, the walking cycle T will be described by taking the right foot L _R as an example. As shown in FIG. 4, the toe T _R contacts the walking surface 6a (ON) and then moves away from the walking surface 6a. (OFF) time again T _T until the contact (oN) to the walking surface 6a, or heel H _R is away from the tread surface 6a from the contact (oN) with the plane of walking 6a (OFF) contact again walking surface 6a ( 0N) is the time T _H. Walking period T is made from the heel H _R is in contact with the walking surface 6a and stance phase to the toe T _R leaves, the swing phase the foot L _R is away from the tread surface 6a, 1 walking period T Consists of 60% stance phase and 40% swing phase. Here, the stance phase, the heel H _R and the heel contact in contact with the walking surface 6a, a sole ground whole sole of the foot is in contact with the walking surface 6a, which is the one leg standing state takes full weight on the foot consists of a mid-stance, the heel away heel H _R starts to float, a toe away toe T _R by body moves forward away from the walking surface 6a. The walking cycle is generally about 1 second on average in the case of healthy adult males. Based on the ON / OFF signal (walking timing detection signal) output from the detection device 8, the arithmetic device 9 calculates the walking cycle from the interval of time when the feet L _R and L _{L of} the subject M are in contact with the walking surface 6 a. T is calculated, and the contact state (walking phase) between the foot L _R and the walking surface 6a at time t _{N + Δt} after the lapse of Δt time from the current time t _{N is} predicted from the walking cycle T. The arithmetic device 9 calculates time series changes and transitions of the contact state between the feet L _R and L _L of the subject M and the walking surface 6a, and outputs information on the future contact state to the control device 10 as a contact state prediction signal. To do.

The control device 10 shown in FIGS. 1 and 2 is means for controlling the vibration operation of the vibration device 7 based on the calculation result of the calculation device 9. Controller 10, for example, the gait until toe T _R of the foot L _R from the heel H _R of one of the legs L _R of the subject M is in contact with the walking surface 6a is separated from the tread surface 6a The vibration control device 7 is controlled so that the surface 6a vibrates. The control device 10 outputs a vibration operation start signal to the vibration device 7 and outputs a photographing operation start signal to the photographing devices 11 and 12 based on the contact state prediction signal output from the arithmetic device 9. Controller 10, for example, when adding vibrations to the subject M at time t _{N + Delta] t} the right foot L _R is in contact with the walking surface 6a as shown in FIG. 4, vibration, start signal at time t _{N + Delta] t} Is output to the vibration device 7 and a photographing operation start signal is output to the photographing devices 11 and 12. For example, the control device 10 is configured such that the toe T _R of the foot L _RL moves away from the walking surface 6a after the heel H _R of one foot L _R of the subject M contacts the walking surface 6a. The vibration control device 7 is controlled so that the walking surface 6a moves from one foot L _R toward the other foot L _L.

  The imaging devices 11 and 12 shown in FIGS. 1 and 2 are means for imaging the condition of the subject M based on the calculation result of the calculation device 9. The imaging devices 11 and 12 receive the infrared rays reflected from the reflector R shown in FIG. 1 by irradiating the subject M with infrared rays, and connect the light spots from the reflectors R to perform third-order body movements of the subject M. Take the original image. The imaging devices 11 and 12 image the subject M within a predetermined time based on the imaging operation start signal from the motion analysis device 16 and output the captured image as image information to the display device 14 and the motion analysis device 16.

  The switching device 13 shown in FIG. 1 is a switch for switching when one of the captured images from the imaging devices 11 and 12 is displayed on the display device 14. The display device 14 displays the captured images from the imaging devices 11 and 12. It is a monitor to display. The vibration detection device 15 is an acceleration sensor or the like that detects vibration of the simulated cabin 3 and is installed on the floor surface 3 a of the simulated cabin 3 and outputs a vibration detection signal according to the magnitude of the vibration to the motion analysis device 16.

  The motion analysis device 16 shown in FIGS. 1 and 2 is means for analyzing the motion of the subject M when vibration is applied to the subject M. The motion analysis device 16 executes predetermined motion analysis processing according to the motion analysis program, and evaluates riding comfort, stability, walking balance, and the like when the subject M performs a walking motion in the simulated guest room 3 that vibrates. For example, the motion analysis device 16 adjusts the rotational speed of the drive motor 6e to change the speed of the belt 6b of the treadmill 6, or sends to the photographing devices 11 and 12 based on the photographing operation start signal from the control device 10. An imaging operation is commanded, or the captured images from the imaging devices 11 and 12 are synthesized by a three-dimensional DLT (Direct Linear Transformation) method to analyze the posture of the subject M in a three-dimensional manner. As shown in FIG. 2, the motion analysis device 16 includes a drive motor 6e of the treadmill 6, a pressure sensor 8a of the detection device 8, a control device 10, imaging devices 11 and 12, a vibration detection device 15, a recording device 17, and the like. Is connected.

  The recording device 17 is means for recording the analysis result of the motion analysis device 16. The recording device 17 is a memory that records an ON / OFF signal from the detection device 8, image information from the imaging devices 11 and 12, a vibration detection signal from the vibration detection device 15, and the like. The recording device 17 records, for example, a timing (walking information) when vibration is applied to the subject M and a captured image (image information) obtained by capturing the posture of the subject M at this timing.

Next, the operation of the ride comfort evaluation system including the vibration test apparatus according to the embodiment of the present invention will be described.
FIG. 5 is a flowchart for explaining the operation of the riding comfort evaluation system including the vibration testing apparatus according to the embodiment of the present invention.
In step (hereinafter referred to as S) 100, the treadmill 6 starts to operate. When the motion analysis device 16 outputs an operation start signal to the drive motor 6e of the treadmill 6, the drive motor 6e rotationally drives the rotating bodies 6c and 6d, and the belt 6b moves in the arrow direction shown in FIG. As a result, the subject M starts the walking motion on the walking surface 6a according to the moving speed of the belt 6b, and the situation in which the normal walking motion is performed in the railway vehicle is reproduced by the subject M in the simulated cabin 3.

In S200, the detection device 8 starts a detection operation. When the subject M starts walking on the walking surface 6a, the pressure-sensitive sensor 8a detects the contact and separation between the feet L _R and L _{L of the} subject M and the walking surface 6a, and turns ON / OFF as shown in FIG. An OFF signal is output to the arithmetic unit 9.

In S300, the arithmetic unit 9 starts calculating the walking cycle T. When ON / OFF signals from the detector 8 to the computing unit 9 is input, the walking period T arithmetic unit 9 is calculated on the basis than the current time t _N in the previous past ON / OFF signal.

In S400, the arithmetic unit 9 predicts and calculates a future walking cycle. Based on the walking cycle T, the arithmetic unit 9 predicts the contact state between the subject M and the walking surface 6a at a future time t _{N + Δt} after the lapse of Δt time from the current time t _N, and the prediction calculation result is contacted. It outputs to the control apparatus 10 as a situation prediction signal.

FIG. 6 is a diagram for explaining the timing of vibration by the vibration testing apparatus according to the embodiment of the present invention. FIG. 6 (A) is in contact with the walking surface from the foot on the side far from the walking surface. FIG. 6B shows a state in which vibration is applied toward the foot on the side that is in contact with the walking surface from the foot on the side that is in contact with the walking surface. Indicates.
In S500, the vibration exciter 7 starts operating. When the contact state prediction signal is input from the arithmetic device 9 to the control device 10, the control device 10 outputs a vibration operation start signal to the vibration device 7 so that the walking surface 6a vibrates at a future time t _{N + Δt} , for example. Thus, the timing of vibration is controlled, and the control device 10 outputs a photographing operation start signal to the motion analysis device 16. Further, the motion analysis device 16 outputs a photographing operation start signal to the photographing devices 11 and 12 to control the photographing timing so that the photographing devices 11 and 12 perform photographing operations within a predetermined time from the future time t _{N + Δt.} The Each foot L _R of the subject M, and the single leg supporting period L _L is left or right of one foot L _R of the two-leg supporting period and the subject M in contact with the walking surface 6a, is L _L contacts the walking surface 6a, When vibration is applied to the subject M, the influence on the subject M is different. For example, as shown in FIG. 6 (A), in a state in which the subject M is moved away from the tread surface 6a and the left foot L _L is brought into contact with the walking surface 6a of the right foot L _R, vibrating unit 7 A direction When the walking surface 6a is vibrated, the subject M can immediately bring the left foot L _L into contact with the walking surface 6a to balance the body. On the other hand, as shown in FIG. 6B, when the vibration device 7 vibrates the walking surface 6a in the B direction from the same state as that shown in FIG. _It is difficult to bring _L into contact with the walking surface 6a and it is difficult to balance the body. For this reason, when it is desired to apply vibration to the subject M in the state shown in FIG. 6A, as shown in FIG. 4, a future time t when only the right foot L _R is in contact with the walking surface 6a. tread surface 6a in _{N + Delta] t} is the control unit 10 to vibrate in the direction a commands operation in vibrating unit 7. On the other hand, when it is desired to apply vibration to the subject M in the state shown in FIG. 6B, the walking surface 6a is controlled to vibrate in the B direction at a future time t _{N + Δt} as shown in FIG. The device 10 commands the vibration device 7 to operate.

  In S600, the imaging devices 11 and 12 start the imaging operation. When a shooting operation start signal is input from the control device 10 to the motion analysis device 16, the motion analysis device 16 instructs the shooting devices 11 and 12 to perform a shooting operation. As a result, the imaging devices 11 and 12 receive the reflected light from the reflector R by irradiating the subject M with infrared rays, and the posture of the subject M when receiving vibrations in the A and B directions as shown in FIG. The captured image is output to the display device 14 and the motion analysis device 16.

  In S700, the motion analysis device 16 starts motion analysis. The motion analysis device 16 analyzes the motion of the subject M based on the ON / OFF signal from the detection device 8, the captured images from the imaging devices 11 and 12, the vibration detection signal from the vibration detection device 15, and the like. Assess your comfort.

  In S800, the recording device 17 records the analysis result. The motion analysis device 16 records the ON / OFF signal from the detection device 8, the captured images from the imaging devices 11 and 12, the vibration detection signal from the vibration detection device 15, and the like on the recording device 17.

The riding comfort evaluation system including the vibration test apparatus according to the embodiment of the present invention has the following effects.
(1) In this embodiment, the detection device 8 detects the contact state between the feet L _R and L _L of the subject M and the walking surface 6a, and the walking cycle T of the subject M is determined based on the detection result of the detection device 8. The calculation device 9 calculates, and the control device 10 controls the vibration operation of the vibration device 7 that vibrates the walking surface 6 a based on the calculation result of the calculation device 9. For this reason, the timing of vibration applied to the subject M can be controlled in accordance with the contact state between the legs L _R and L _{L of} the subject M and the walking surface 6a. As a result, it is possible to effectively apply vibration stimulation to the subject M, and it is possible to efficiently analyze and evaluate the riding comfort during walking in the railway vehicle.

(2) In this embodiment, both the foot L _R of the subject M, L _L heel H _R of a contact state between the walking surface 6a and H _L, toes T _R of the foot L _R, L _L, T _L And the contact state with the walking surface 6a are detected by the detection device 8. As a result, the time and the foot L _R of the subject M, and L _L are in contact with the walking surface 6a, the foot of the subject M L _R, the L _L to accurately detect the time spaced from the walking surface 6a Therefore, the walking cycle T can be calculated accurately.

(3) In this embodiment, the calculation device 9 predicts and calculates the future walking cycle of the subject M based on the past walking cycle T of the subject M. For this reason, it is possible to predict the timing at which the legs L _R and L _{L of} the subject M and the walking surface 6a come into contact with each other and effectively apply vibration to the subject M.

(4) In this embodiment, the vibration device 7 applies vibration to the treadmill 6. For this reason, the subject M can be caused to walk in a limited area in the simulated cabin 3, and vibration similar to that generated in an actual railway vehicle can be applied to the subject M. Further, the walking speed of the subject M can be changed to an arbitrary speed by the treadmill 6, and the subject M can be tested by applying vibration.

(5) In this embodiment, the period from the heel H _R of one of the legs L _R of the subject M is in contact with the walking surface 6a to toe T _R of the legs L _R is separated from the tread surface 6a, The control device 10 controls the vibration device 7 so that the walking surface 6a vibrates. For this reason, vibration can be applied to the subject M when the subject M is in a single leg support state, and the body balance during the walking motion of the subject M at this time can be measured.

(6) In this embodiment, the period from the heel H _R of one of the legs L _R of the subject M is in contact with the walking surface 6a to toe T _R of the legs L _R is separated from the tread surface 6a, as the tread surface 6a toward this one leg L _R on the other leg L _L moves, vibration device 7 a control unit 10 operates the control. Therefore, as shown in FIG. 6 (B), the vibration in the direction B in addition in the state in which the subject M is supported the body with only one foot L _R, by landing the other foot L _L on the walking surface 6a A situation in which it is difficult to support the body with both legs L _R and L _L can be created on a trial basis.

(7) In this embodiment, the photographing devices 11 and 12 photograph the state of the subject M based on the computation result of the computing device 9. Therefore, the posture of the subject M when the vibration is applied to the subject M can be photographed by synchronizing the timing of the vibration and the timing of the photographing.

(Other embodiments)
The present invention is not limited to the embodiment described above, and various modifications or changes can be made as described below, and these are also within the scope of the present invention.
(1) In this embodiment, the case where the present invention is applied to the evaluation of the riding comfort of a railway vehicle has been described as an example, but other transportation means such as a bus, an airplane, and a ship, and transportation means such as a walking elevator and an escalator. The present invention can also be applied to the evaluation of ride comfort in amusement facilities such as ride devices. In this embodiment, the case where a total of four pressure-sensitive sensors 8a are attached to both legs L _R and L _L has been described as an example, but the present invention is not limited to this. For example, the pressure sensor 8a is attached only to the toes T _R and T _L or the heels H _R and H _{L of} both feet L _R and L _L , or the pressure sensor 8a is attached to one foot L _R or the foot L _L. The pressure sensor 8a can be mounted on the side of the arch.

(2) In this embodiment describes an example in which applying vibration when the subject M is supported the body with one leg L _R, make minor vibrations always like a real railway vehicle You can also. In this embodiment, the case where vibration in the left-right direction is applied to the subject M has been described as an example. However, vibration in the front-rear direction and the vertical direction can also be applied to the subject M. Further, in this embodiment, the case where the subject M is caused to walk is described as an example. However, the subject M can be caused to run to apply vibration to the subject M.

(3) In this embodiment, the case where the treadmill 6 is grounded in the simulated cabin 3 has been described as an example. However, when the simulated cabin 3 has a sufficient length like an actual vehicle, the treadmill 6 6 can also be omitted. In this embodiment, the walking cycle T is calculated by the pressure-sensitive sensor 8a. However, the walking cycle T is calculated by detecting the movement and angle of the knee joint of the subject M, and the step length of the subject M is photographed. The walking cycle T can also be calculated more accurately by photographing with a device. Further, in this embodiment, the movement of the subject M is photographed by the photographing devices 11 and 12, but it is also possible to measure the EMG (Electro Muscle Graph) of the subject M and use it for evaluation of riding comfort. it can.

1 is an external view of a riding comfort evaluation system including a vibration test apparatus according to an embodiment of the present invention. It is a lineblock diagram of a ride comfort evaluation system provided with a vibration test device concerning an embodiment of this invention. It is a top view which shows arrangement | positioning of the detection apparatus of the vibration test apparatus which concerns on embodiment of this invention. It is a figure for demonstrating the arithmetic processing of the arithmetic unit of the vibration test apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating operation | movement of a riding comfort evaluation system provided with the vibration test apparatus which concerns on embodiment of this invention. It is a figure for demonstrating the timing of the vibration by the vibration test apparatus which concerns on embodiment of this invention, (A) is toward the leg on the side which is in contact with the walking surface from the foot on the side away from the walking surface. (B) shows a state in which vibration is applied from the foot on the side in contact with the walking surface toward the foot on the side separated from the walking surface.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Riding comfort evaluation system 2 Vibration test apparatus 3 Simulated guest room 5 Test stand 6 Treadmill 6a Walking surface 7 Exciting apparatus 8 Detection apparatus 8a Pressure sensor 9 Arithmetic apparatus 10 Control apparatus 11, 12 Imaging apparatus 16 Motion analysis apparatus M Test subject L _R , foot (right foot)
L _L foot (left foot)
T _R , T _L Toe H _R , H _L踵 T Walking cycle

Claims (6)

A vibration test apparatus for testing the behavior of the subject by applying vibration to the walking surface while causing the subject to walk or run on the walking surface,
A computing means for computing a walking cycle of the subject based on a detection result of a detecting means for detecting a contact state between the foot of the subject and the walking surface;
Control means for controlling the vibration operation of the vibration means for applying vibration to the walking surface based on the calculation result of the calculation means;
The control means includes the excitation means so that the walking surface vibrates between the time when a heel of one foot of the subject contacts the walking surface and the toe of the foot moves away from the walking surface. Controlling the operation,
Vibration test equipment characterized by The vibration test apparatus according to claim 1,
The detection means detects at least the contact state between the footpad of one or both of the subjects and the walking surface, and the contact state between the toes of the foot and the walking surface;
Vibration test equipment characterized by In the vibration testing apparatus according to claim 1 or 2,
The calculation means predicting and calculating the future walking cycle of the subject based on the past walking cycle of the subject;
Vibration test equipment characterized by In the vibration testing device according to any one of claims 1 to 3,
The vibration means applies vibration to the treadmill when the belt surface of the treadmill is the walking surface;
Vibration test equipment characterized by In the vibration testing device according to any one of claims 1 to 4,
The control means is configured such that, from the contact between the heel of one foot of the subject to the walking surface and the toe of the foot moving away from the walking surface, the one foot toward the other foot. Controlling the excitation means so that the walking surface moves;
Vibration test equipment characterized by In the vibration testing apparatus according to any one of claims 1 to 5,
Comprising photographing means for photographing the state of the subject based on the computation result of the computing means;
Vibration test equipment characterized by

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