CN104998396A - System and method used for acquiring and measuring running speed in ground track field - Google Patents
System and method used for acquiring and measuring running speed in ground track field Download PDFInfo
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- CN104998396A CN104998396A CN201510379226.1A CN201510379226A CN104998396A CN 104998396 A CN104998396 A CN 104998396A CN 201510379226 A CN201510379226 A CN 201510379226A CN 104998396 A CN104998396 A CN 104998396A
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Abstract
The invention relates to a system and method used for acquiring and measuring running speed in a ground track field. The system includes a data acquisition device, a data transmission device and a data processing, display, storage and output device; the data acquisition device includes a laser range finder with a rotation angle sensor, a laser reflector arranged on the body of a measured athlete and a system control circuit. According to the system and method of the invention, a time of a movement beginning position point and a time of a movement arrival position point, distances from the movement beginning position point and the movement arrival position point to the rotation center of the laser range finder, and laser range finder rotation angles corresponding to the two positions are obtained through the laser range finder which rotates with the movement of the body of the athlete; a distance of a last movement position to the current movement position is calculated through using a cosine law algorithm; and the distance is divided by movement time, so that the speed of the athlete in the distance can be obtained. With the system and method of the invention adopted, real-time and accurate running speed of the athlete in curve and straight tracks in the ground track field can be obtained conveniently and quickly.
Description
Technical field
The invention belongs to sports training parameter acquisition technical field, be specially collecting and measuring system and the method for velocity on a kind of stadium of track and field.Be used in the collection of velocity on stadium of track and field curve and straightaway.
Background technology
In sports training, how utilizing modern science and technology means to gather sportsman's velocity on stadium of track and field curve and straightaway as far as possible in real time, accurately, is very important for scientific guidance training, raising level of technique.At present, also do not have can to meet in real time, accurately carry out curve and rectilinear motion whole process and to test the speed the technology of demand and product.Existing method is segmentation speed-measuring method, adopt multiple spot on athletic runner's path that multiple sensor-signal receiver is set, athletic mobile message is obtained by the sensor signal receiving multiple spot, this method, cannot realize real-time, the velocity accurately of measuring the omnidistance high density arbitrfary point of sportsman on stadium of track and field curve and straightaway, and installation and debugging are time-consuming, trouble.Modern sports sports science is trained, gather measuring method in the urgent need to a kind of real-time, accurate, omnidistance stadium of track and field curve and point-to-point speed of can carrying out, for the omnidistance high density of sportsman's velocity on stadium of track and field curve and straightaway and arbitrfary point real-time, accurately measure.
Summary of the invention
The object of the invention is for gathering the demand measuring sportsman velocity on stadium of track and field curve and straightaway and the collecting and measuring system and the method that propose a kind of velocity on stadium of track and field in sports training, for collection and the measurement of sportsman's velocity on stadium of track and field curve and straightaway.
The object of the invention is to be achieved through the following technical solutions:
A kind of collecting and measuring system of velocity on stadium of track and field, comprise data acquisition unit, wireless or wired data transfer device and data processing output device, described data acquisition unit includes a laser range finder and laser reflector, laser range finder is arranged on a support, described data acquisition unit is connected with data processing output device by wireless or wired data transfer device, described laser range finder is with a rotary angle transmitter, laser reflector is arranged on tested person's health, laser range finder passes through Emission Lasers signal to laser reflector, and the reflected signal receiving laser reflector is connected with laser reflector, described laser range finder tracking laser reflector moves and rotates, it is installed on the bracket.
Further scheme, described laser reflector is Wearable reflectorized material plate or reflectorized material clothing, and reflectorized material plate or reflectorized material clothing adopt bandage, mode that is bonding or that dress arranges and is worn on tested person's health.
Further scheme, the described laser range finder with rotary angle transmitter comprises laser range finder body and is connected to the rotary angle transmitter of described laser range finder bottom; Described rotary angle transmitter is fixed in a housing, and housing is fixing on the bracket by a collet, and the rotating shaft of rotary angle transmitter is connected with a rotating shaft adapter sleeve; Described rotating shaft adapter sleeve is fixed on the bottom of described laser range finder body, rotating shaft adapter sleeve is provided with the connecting hole and screw hole that are connected with described rotating shaft; Described rotating shaft passes described housing insertion connecting hole and is fixed in the rotating shaft adapter sleeve of laser range finder body by the jackscrew in screw hole, between described rotating shaft adapter sleeve and described housing, a pressure bearing is equipped with in described rotating shaft.
Further scheme, a servomotor and gear reduced drive device is provided with in described housing, servomotor connects gear reduced drive device power shaft, gear reduced drive device output shaft is connected with described rotating shaft by gears meshing, and the control inputs of described servomotor connects a controlling angle circuit.
Further scheme, described controlling angle circuit comprises a microprocessor and driven by servomotor circuit, the signal input part of described microprocessor connects laser range finder and exports for the signal acquisition of laser reflector, the signal output part connection driven by servomotor control circui input of described microprocessor.
Further scheme, the described laser range finder body left and right sides is provided with the handle for rotating laser range finder body, and the upper surface of body is provided with gun sight.
A kind of collection measuring method based on described collecting and measuring system velocity on stadium of track and field, described system comprises laser range finder with rotary angle transmitter and laser reflector, laser range finder is connected with laser reflector by the inverse signal of Emission Lasers signal to laser reflector and reception laser reflector, is worn on tested person's health by laser reflector by bandage, bonding or wearing mode; Described method comprises the step arranging laser range finder step and measure tested person's velocity;
The described laser range finder step that arranges is: laser range finder being erected at tested person's annular and running position in stadium of track and field that route surrounds, making laser signal follow the trail of the movement locus of tested person by rotating laser range finder;
The step of described measurement tested person velocity is: by rotating laser range finder Real-time Obtaining tested person road-work trace information, motion track information comprises: the location point information in laser range finder and tested person's a certain moment, laser range finder and this moment location point previous moment location point information of tested person, above-mentioned two positions point to the angle information of the fulcrum distance line angle of laser range finder, utilizes formula respectively:
V
n=
=
Calculate tested person's not velocity in the same time, wherein, a
nfor movement locus from n-1 point to n point air line distance, b is the distance of movement locus n-1 point to laser range finder center, c is the distance of movement locus n point to laser range finder center, and An is the angle that laser range finder obtains that tested person's road-work trace information turns to n point from n-1 point, t
nfor the time of n point, t
n-1for the time of n-1 point, n is the positive integer from " 0 ".
Further scheme, the described method making laser signal follow the trail of the movement locus of tested person by rotating laser range finder is: two hands hold the handle arranged in laser range finder both sides respectively, with the laser reflector that eyes are worn with it by the gun sight aiming tested person be arranged on laser range finder, generating laser now on laser range finder and laser signal receivers are aimed at laser reflector simultaneously and are worked, when tested person moves, rotate laser range finder with hand and follow the movement locus rotating and realize laser signal tracking tested person.
Further scheme, the described method making laser signal follow the trail of the movement locus of tested person by rotating laser range finder is: first the generating laser on laser range finder and laser signal receivers are aimed at tested person's laser reflector with it simultaneously, laser signal transmitter Emission Lasers signal, judge whether laser reflection signal receiver receives the laser reflection signal from laser reflector, if do not received, then rotate laser range finder; If received, or then stop operating start next positional distance measure; Wherein, after receiving laser firing signals in rotation direction, tracking is afterwards rotated along identical direction all the time, realizes the movement locus of laser signal automatic tracing tested person.
Further scheme, described method comprises the step exporting tested person's a certain displacement point of global motion track or a certain run duration point instantaneous velocity further, its process is: be first stored in storage device by the total data of measurement, the distance of any point distance starting point in global motion track or any time point is inputted in system-specific software, system-specific software, by transferring the parameters such as distance corresponding with it, angle and time from storage device, exports the instantaneous velocity before and after any point or before and after any time point with described formulae discovery.
Further scheme, described method to comprise above-mentioned time, the instantaneous transmission of Distance geometry angle parameter by wired or wireless data transmission device further to the special-purpose software of computer installation, computer and special-purpose software are by the time of above-mentioned acquisition, Distance geometry angle parameter, apply the speed that described formulae discovery exports any point position or any time point measured movement, and calculate output measured omnidistance motion track continuous print rate curve.
Principle of the present invention is: the laser range finder rotated by following human motion obtains the starting position point of each movement and moves to reach the time of location point, the starting position point of movement and move to reach the distance that location point minute is clipped to laser range finder center of rotation, laser range finder rotational angle in the middle of these two positions, the distance that last position moves to this position is calculated by application cosine law algorithm, again divided by traveling time, namely the speed that this section moves is drawn, when this method is curve for motion track, arc length is substituted by the chord length of curve, when laser range finder rotational angle levels off to zero or enough little, displacement level off to zero or enough little when, the chord length of curve levels off to arc length.
The invention has the beneficial effects as follows: achieve velocity on stadium of track and field curve and straightaway real-time, accurately measure, structure of the present invention is simple, operation is simple and easy to do, for modern sport games sentific training provides collection measuring method and the system of velocity on a kind of stadium of track and field curve and straightaway, real-time in stadium of track and field curve and straightaway whole process, the accurate velocity of sportsman can be obtained quickly and easily.
Below in conjunction with the drawings and the specific embodiments, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the acquisition system composition frame chart that the present invention realizes;
Fig. 2 is that in acquisition system of the present invention, device has the laser range finder structural representation front view measuring crank degree sensor;
Fig. 3 is that in acquisition system of the present invention, device has the laser range finder left view measuring crank degree sensor.
Fig. 4 is that acquisition method of the present invention uses schematic diagram.
Reference numeral: 1. laser range finder body; 2. rotary angle transmitter; 3. housing; 4. collet; 5. pressure bearing; 6. jackscrew; 7. bolt; 8. screw; 1-1. rotating shaft adapter sleeve; 1-2. manual rotation handle; 1-3. generating laser; 1-4. laser pickoff; 1-5. gun sight; 2-1. rotating shaft.
Detailed description of the invention
Embodiment 1
A kind of collecting and measuring system of velocity on stadium of track and field, comprise data acquisition unit, data transmission device and data processing display translation device, described data acquisition unit includes a laser range finder and laser reflector, laser range finder is arranged on a support, described data acquisition unit is connected with data processing display translation device by data transmission device, described laser range finder is with a rotary angle transmitter, laser reflector is arranged on tested person's health, laser range finder passes through Emission Lasers signal to laser reflector, and the inverse signal receiving laser reflector is connected with laser reflector, described laser range finder is followed the tracks of laser reflector and is moved, tumbler is installed on the bracket.The time that above-mentioned data acquisition unit gathers by wireless or wired described data transmission device, the instantaneous transmission of Distance geometry angle parameter store output device to data processing display.Described data processing display stores output device by parameters such as the time of above-mentioned acquisition, Distance geometry angles, calculate and store the speed of display translation any point position or any time point tested person movement, and calculating and store display translation tested person omnidistance motion track continuous print rate curve.Component relationship between concrete all parts as shown in Figure 1.
Described laser reflector is the clothing (being called refractive body) that Wearable reflectorized material plate or reflectorized material make, and reflectorized material plate or reflective clothing adopt the mode of bonding, bandage or wearing to arrange and be worn on tested person's health.Described reflectorized material plate or reflective clothing are made up of refractive body and the hasp, adhesive substance or the bandage that are connected with refractive body, and described refractive body is circular, oval or rectangle.
As shown in Figures 2 and 3, the described laser range finder with rotary angle transmitter comprises laser range finder body 1 and is connected to the rotary angle transmitter 2 of described laser range finder bottom; Described rotary angle transmitter 2 is fixed in a housing 3, with bolt 7, angular transducer 2 is fixed on housing 3, housing 3 is fixing on the bracket by a collet 4, and be fixed on housing 3 with screw thread by collet 4, described collet 4 is provided with screw 8 for being connected by screw with support.Described rotating shaft 2-1 is the turning cylinder of angular transducer 2, and the bottom of described laser range finder body is fixed with a rotating shaft adapter sleeve 1-1, rotating shaft adapter sleeve 1-1 is provided with the connecting hole and screw hole that are connected with described rotating shaft 2-1; Described rotating shaft 2-1 passes described housing 3 and inserts connecting hole on rotating shaft adapter sleeve 1-1 and be fixed in the rotating shaft adapter sleeve 1-1 of laser range finder body 1 by the jackscrew 6 in screw hole, between described rotating shaft adapter sleeve 1-1 and described housing 3, described rotating shaft 2-1 is equipped with a pressure bearing 5.
Described data transmission device can be wired data transfer device also can be wireless data transmission device, if wireless data transmission device then forms by by wireless sensor network gateway equipment and wireless sensor network node.Described data processing stores display translation device and is made up of computer, memory, system-specific software and display.
The track of tracing movement person can have two kinds to follow the trail of structure:
One, the track configuration device of hand rotation laser range finder tracing movement person:
The described laser range finder body left and right sides is provided with the handle for rotating laser range finder body, the upper surface of body is provided with gun sight.As shown in Figure 2, described laser range finder body 1 is provided with manual rotation's handle 1-2, generating laser 1-3, laser pickoff 1-4, and is positioned at the gun sight 1-5 on described laser range finder body 1 top.
Two, automatically rotate the track configuration device of laser range finder tracing movement person:
A servomotor and gear reduced drive device is provided with in described housing, servomotor connects gear reduced drive device power shaft, gear reduced drive device output shaft is connected with described rotating shaft by gears meshing, and the control inputs of described servomotor connects a controlling angle circuit.Described controlling angle circuit comprises a microprocessor and driven by servomotor circuit, the signal input part of described microprocessor connects laser range finder and exports for the signal acquisition of laser sensor, the signal output part connection driven by servomotor control circui input of described microprocessor.
Embodiment 2
A kind of collection measuring method based on the velocity on stadium of track and field of collecting and measuring system described in embodiment 1, described system comprises laser range finder with rotary angle transmitter and laser reflector, laser range finder is connected with laser reflector by the inverse signal of Emission Lasers signal to laser reflector and reception laser reflector, is worn on tested person's health by laser reflector by bandage, bonding or wearing mode; Described method comprises the step arranging laser range finder step and measure tested person's velocity;
The described laser range finder step that arranges is: laser range finder being erected at tested person's annular and running position in stadium of track and field that route surrounds, making laser signal follow the trail of the movement locus of tested person by rotating laser range finder;
The step of described measurement tested person velocity is: by rotating laser range finder Real-time Obtaining tested person road-work trace information, motion track information comprises: the location point information in laser range finder and tested person's a certain moment, laser range finder and this moment location point previous moment location point information of tested person, above-mentioned two positions point to the angle information of the fulcrum distance line angle of laser range finder, utilizes formula respectively:
V
n=
=
Calculate tested person's not velocity in the same time, wherein, a
nfor movement locus from n-1 point to n point air line distance, b is the distance of movement locus n-1 point to laser range finder center, c is the distance of movement locus n point to laser range finder center, and An is the angle that laser range finder obtains that tested person's road-work trace information turns to n point from n-1 point, t
nfor the time of n point, t
n-1for the time of n-1 point, n is the positive integer from " 0 ".
The method making laser signal follow the trail of the movement locus of tested person by rotating laser range finder described in embodiment has two kinds, manually with automatic.
Manual methods is: utilize the left and right sides of laser range finder body described in embodiment 1 to be provided with handle for rotating laser range finder body, the upper surface of body is provided with gun sight.Two hands hold the handle arranged in laser range finder both sides respectively, with eyes by be arranged on gun sight on laser range finder aim at tested person with it wear laser reflector, generating laser now on laser range finder and laser signal receivers are aimed at laser reflector simultaneously and are worked, when tested person moves, rotate laser range finder with hand and follow the movement locus rotating and realize laser signal tracking tested person.
Automated process is: utilize the automatics in embodiment 1, the described method of movement locus making laser signal follow the trail of tested person by rotating laser range finder is: first by laser range finder generating laser and laser signal receivers aim at laser sensor simultaneously, Emission Lasers signal, judge whether to receive the reflected signal from laser reflector, if do not received, then rotate laser range finder; If received, then stop operating or start next positional distance and measure; Wherein, after receiving laser reflection signal in rotation direction, tracking is afterwards rotated along identical direction all the time, realizes the movement locus of laser signal automatic tracing tested person.
In embodiment: the described method making its laser signal follow the trail of the movement locus of tested person by rotating laser range finder is: first laser signal (laser beam) transmitter on laser range finder and laser reflection signal (folded light beam) receiver are aimed at tested person's laser reflector with it simultaneously, laser signal transmitter Emission Lasers signal, judge whether laser reflection signal receiver receives the laser reflection signal from laser reflector, if do not received, then rotate laser range finder; If received, then stop operating or start next location point range measurement; Wherein, after receiving laser reflection signal in rotation direction, tracking is afterwards rotated along identical direction all the time, realizes the movement locus of laser signal automatic tracing tested person.
The present embodiment method both can measure average speed, also can measure instantaneous velocity, and can select in many ways to export; Wherein, described method comprises the step exporting tested person's a certain displacement point of global motion track or a certain run duration point instantaneous velocity further, its process is: be first stored in storage device by the total data of measurement, the distance of any point distance starting point in global motion track or any time point is inputted in system-specific software, system-specific software, by transferring the parameters such as distance corresponding with it, angle and time from storage device, exports the instantaneous velocity before and after any point or before and after any time point with described formulae discovery.
Below that described method is further described in detail:
As shown in Figure 4: comprise the following steps: 1) by laser reflection apparatus on tested person's health; 2) laser range finder with rotary angle transmitter is erected at center in stadium of track and field, collecting and measuring system described in start hot-line test; 3) laser range finder with rotary angle transmitter is aimed at the laser reflector that tested person wears with it, receive starting singal and namely start to rotate tracking tested person; 4) the time t of the starting position point of each movement of tested person is obtained
n-1with the time t moving to reach location point
n, movement starting position point n-1 to laser range finder center of rotation 0 distance c and move to reach laser range finder rotational angle A corresponding to location point n to the distance b of laser range finder center of rotation 0, these two positions
n; 5) by data transmission device, above-mentioned time, Distance geometry angle parameter are transferred to data processing display unit; 6) data processing display unit utilizes the cosine law to calculate the air line distance a of each mobile point-to-point transmission of tested person
n, namely described air line distance is drawn divided by the traveling time that this section moves the average speed V that this section moves
nand export.
When tested person runs when track is and counterclockwise moves along closed track, reflective thing is fixed on the left hip side of tested person in step 1); When tested person runs when track is and moves clockwise along closed track, reflective thing is fixed on the right hip side of tested person.Tested person's laser reflector is with it fixed on the clothes of sportsman's dress with velcro or adhesive substance or the wearing mode such as bandage or sewing.
The angle that in step 4), laser range finder rotates at every turn levels off to 0, makes the average speed exported in step 6) close to instantaneous velocity.When described collection measuring method is curve for motion track to be measured, the air line distance utilizing the cosine law to calculate each mobile point-to-point transmission of tested person in step 6) replaces the length of curve of point-to-point transmission reality.Described collection measuring method be further position residing when moving front inactive state with tested person for initial point, the real-time speed according to each sampling instant obtained calculates the Velocity-time path curves of tested person and exports.
As shown in Figure 4, install the laser range finder with angular transducer at the center of endless track, described data processing display unit (comprising computer and special-purpose software), by the time of above-mentioned acquisition, Distance geometry angle parameter, applies the cosine law: a
2=b
2+ c
2in-2bc × cosA(formula, " A " is the angle on b, c both sides of triangle ABC) calculate the distance a that n-1 location point (last location point) moves to N location point (current location point)
n=
, displacement a
ndivided by mobile time t used
n-t
n-1, namely show that n-1 location point (last location point) moves to the average speed V of N location point (current location point)
n,
I.e. formula: V
n=
=
N=0 in formula, 1,2 ..., n-1, n.
As corner A
nangle value is enough little level off to zero time, the chord length a of corresponding arc
nlevel off to the arc length of corresponding arc, computer and test macro special-purpose software are by the time of above-mentioned acquisition, Distance geometry angle parameter, apply the speed that described formulae discovery exports any point position or any time point measured movement, and calculate display storage output tested person omnidistance motion track continuous print rate curve.
Claims (10)
1. the collecting and measuring system of a velocity on stadium of track and field, comprise data acquisition unit, data transmission device and data processing output device, described data acquisition unit includes a laser range finder and laser reflector, laser range finder is arranged on a support, described data acquisition unit is connected with data processing output device by wired or wireless data transmission device, it is characterized in that: described laser range finder is with a rotary angle transmitter, laser reflection apparatus is on tested person's health, laser range finder passes through Emission Lasers signal to laser reflector, and the reflected signal receiving laser reflector is connected with laser reflector, described laser range finder tracking laser reflector moves and rotates, it is installed on the bracket.
2. collecting and measuring system according to claim 1, it is characterized in that: described laser reflector is Wearable reflectorized material plate or reflectorized material clothing, reflectorized material plate or reflectorized material clothing adopt bandage, mode that is bonding or that dress arranges and be worn on tested person's health.
3. collecting and measuring system according to claim 1, is characterized in that: the described laser range finder with rotary angle transmitter comprises laser range finder body and is connected to the rotary angle transmitter of described laser range finder bottom; Described rotary angle transmitter is fixed in a housing, and housing is fixing on the bracket by a collet, and the rotating shaft of rotary angle transmitter is connected with a rotating shaft adapter sleeve; Described rotating shaft adapter sleeve is fixed on the bottom of described laser range finder body, rotating shaft adapter sleeve is provided with the connecting hole and screw hole that are connected with described rotating shaft; Described rotating shaft passes described housing insertion connecting hole and is fixed in the rotating shaft adapter sleeve of laser range finder body by the jackscrew in screw hole, between described rotating shaft adapter sleeve and described housing, a pressure bearing is equipped with in described rotating shaft.
4. collecting and measuring system according to claim 3, it is characterized in that: in described housing, be provided with a servomotor and gear reduced drive device, servomotor connects gear reduced drive device power shaft, gear reduced drive device output shaft is connected with described rotating shaft by gears meshing, and the control inputs of described servomotor connects a controlling angle circuit.
5. collecting and measuring system according to claim 4, it is characterized in that: described controlling angle circuit comprises a microprocessor and driven by servomotor circuit, the signal input part of described microprocessor connects laser range finder and exports for the signal acquisition of laser reflector, the signal output part connection driven by servomotor control circui input of described microprocessor.
6. collecting and measuring system according to claim 3, is characterized in that: the described laser range finder body left and right sides is provided with the handle for rotating laser range finder body, and the upper surface of body is provided with gun sight.
7. the collection measuring method based on described collecting and measuring system velocity on stadium of track and field, described system comprises laser range finder with rotary angle transmitter and laser reflector, laser range finder is connected with laser reflector by the inverse signal of Emission Lasers signal to laser reflector and reception laser reflector, is worn on tested person's health by laser reflector by bandage, bonding or wearing mode; It is characterized in that: described method comprises the step arranging laser range finder step and measure tested person's velocity;
The described laser range finder step that arranges is: laser range finder is erected at position in the stadium of track and field that surrounds of tested person's annular runner's path, makes laser signal follow the trail of the movement locus of tested person by rotating laser range finder;
The step of described measurement tested person velocity is: by rotating laser range finder Real-time Obtaining tested person road-work trace information, motion track information comprises: the location point information in laser range finder and tested person's a certain moment, laser range finder and this moment location point previous moment location point information of tested person, above-mentioned two positions point to the angle information of the fulcrum distance line angle of laser range finder, utilizes formula respectively:
V
n=
=
Calculate tested person's not velocity in the same time, wherein, a
nfor movement locus from n-1 point to n point air line distance, b is the distance of movement locus n-1 point to laser range finder center, c is the distance of movement locus n point to laser range finder center, and An is the angle that laser range finder obtains that tested person's road-work trace information turns to n point from n-1 point, t
nfor the time of n point, t
n-1for the time of n-1 point, n is the positive integer from " 0 ".
8. collection measuring method according to claim 7, it is characterized in that: describedly make the method for the movement locus of its Emission Lasers signal tracing tested person be by rotating laser range finder: two hands hold the handle arranged in laser range finder both sides respectively, with the laser reflector that eyes are worn with it by the gun sight aiming tested person be arranged on laser range finder, now on laser range finder laser signal transmitter and laser signal receivers aim at laser reflector simultaneously and work, when tested person moves, rotate laser range finder with hand and follow the movement locus rotating and realize laser signal tracking tested person.
9. collection measuring method according to claim 7, it is characterized in that: the described method making its laser signal follow the trail of the movement locus of tested person by rotating laser range finder is: first the laser signal transmitter on laser range finder and laser reflection signal receiver are aimed at tested person's laser reflector with it simultaneously, laser signal transmitter Emission Lasers signal, judge whether laser reflection signal receiver receives the laser reflection signal from laser reflector, if do not received, then rotate laser range finder; If received, then stop operating or start next location point range measurement; Wherein, after receiving laser reflection signal in rotation direction, tracking is afterwards rotated along identical direction all the time, realizes the movement locus of laser signal automatic tracing tested person.
10. collection measuring method according to claim 7, it is characterized in that: described method comprises the step exporting tested person's a certain displacement point of global motion track or a certain run duration point instantaneous velocity further, its process is: be first stored in storage device by the total data of measurement, input the distance of any point distance starting point in global motion track or any time point, by transferring distance corresponding with it, angle and time parameter from storage device, export the instantaneous velocity before and after any point or before and after any time point with described formulae discovery.
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