A kind of three-dimensional gait analysis instrument
Technical field
This utility model relates to gait analysis field, exactly refers to a kind of three-dimensional gait analysis instrument.
Background technology
Human motion is that nervous system is controlled 1000 polylith muscle and had the rhythm and pace of moving things to shrink, and drives 200 polylith skeletons around the result of more than 100 joint synergy movements.Although life science has made great progress in recent years, it is also very far away that but range simulation brain is controlled the process of limb motion, therefore the researcher such as rehabilitation medicine, Science of Physical Culture and Sports generally adopts the macroscopic motion of observer's limbs to diagnose human motion function disease, assessment human body recovery process, instructs athletic training and selection.
The method of existing Measurement and analysis gait has following several:
1, footprinting: be to make to detect by an unaided eye, do some simple time and space records.Sprinkle on the ground pulverized limestone, allow person to be measured walk on the ground sprinkled with pulverized limestone to record simultaneously person's walking to be measured apart from discrete time.Walked rear observation and measurement sprinkled with the ground footprint of pulverized limestone, thereby drawn the result of gait analysis.There are a lot of significantly defects in this method, such as: time is long; Need to expend a large amount of manpowers; Analysis be take subjectivity as main, and accuracy is lower; The data that obtain are less; Clinical report hand filling, wastes time and energy and easily makes mistakes.
2, video method: human walking procedure is absorbed by video equipment (CCD photographic head), then frame by frame pointwise carry out dot-matrix analysis, its advantage is that equipment is simple, experimenter's gait is more natural, but because its analyzing and positioning mainly relies on manually, higher to operation requirements, error ratio is larger, and can only carry out two dimensional surface analysis, the degree of accuracy of three-dimensional spatial analysis can not be guaranteed.
3, infrared light type: accept the Infrared of skin-marker transmitting or reflection by infrared camera, and send out according to corresponding model analysis, carry out three-dimensional reconstruction, thereby draw the 3 D motion trace that partes corporis humani divides.Its advantage is technology maturation, and data result is accurate, simple and quick; Shortcoming is to have requirement to pasting the position of reflective spot, pastes to such an extent that will definitely directly not affect measurement result; In measuring process, can not there is foreign body gear between reflective spot and photographic head, comprise tested personnel self, so personnel can not be accompanied or assist in tested personnel side.Otherwise affect data acquisition; Higher to environmental requirement, need to be equipped with the room what a area is larger, photographic head installs after angle, can not arbitrarily change; Expensive, operating process is responsible for, and majority is used at laboratory, seldom sees in clinical use, has limited to a certain extent phase popularization.
4, ultrasonic type: the principle of ultrasonic type is similar to infrared light type, the ultrasonic emitting probe being carried by body surface sends ultrasound wave, accepts, according to certain model setting through ultrasound wave receiving transducer around, carry out three-dimensional reconstruction, draw the 3 D motion trace of human body.Its advantage is that equipment price is relatively cheap, operates also relatively simply, and data are also more accurate; But ultrasound wave easily reflects, must eliminate the interference of object around, surrounding is had relatively high expectations, simultaneously because gauge point volume is larger, the gauge point quantity that body once carries has certain restriction, only the suitable human body Segmental analysis that carries out.
Utility model content
For above-mentioned defect, the technical problem that this utility model solves is to provide a kind of three-dimensional gait analysis instrument, and more intelligent and integrated analytical plan can be provided, and does not deposit personal error, time shorten, and accuracy is high, and abundanter training mode is provided.
In order to solve above technical problem, the three-dimensional gait analysis instrument that this utility model provides, comprise the first attitude transducer, the second attitude transducer, the 3rd attitude transducer, the 4th attitude transducer, the 5th attitude transducer, the 6th attitude transducer, the 7th attitude transducer and controller, wherein:
Described the first attitude transducer is arranged on human body left ankle joint, and described the first attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described the second attitude transducer is arranged on human body left foot knee joint place, and described the second attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described the 3rd attitude transducer is arranged on human body left foot hip joint place, and described the 3rd attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described the 4th attitude transducer is arranged on human body right ankle joint, and described the 4th attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described the 5th attitude transducer is arranged on human body right crus of diaphragm knee joint place, and described the 5th attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described the 6th attitude transducer is arranged on human body right crus of diaphragm hip joint place, and described the 6th attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described the 7th attitude transducer is arranged on human body waist, and described the 7th attitude transducer comprises gyroscope, acceleration transducer, magnetoresistive transducer, data acquisition module and MCU, and described gyroscope is connected with described data acquisition module; Described acceleration transducer is connected with described data acquisition module; Described magnetoresistive transducer is connected with described data acquisition module; Described data acquisition unit is connected with described MCU;
Described controller comprises total MCU, communication module and power management module, and wherein, described total MCU is connected with described communication module; The MCU of the MCU of the MCU of the MCU of the MCU of the MCU of the MCU of described the first attitude transducer, described the second attitude transducer, described the 3rd attitude transducer, described the 4th attitude transducer, described the 5th attitude transducer, described the 6th attitude transducer and described the 7th attitude transducer is connected with total MCU of described controller; Described power management module is powered to described the first attitude transducer, the second attitude transducer, the 3rd attitude transducer, the 4th attitude transducer, the 5th attitude transducer, the 6th attitude transducer and the 7th attitude transducer; Power management module is also powered to controller self
The communication module of described controller and host computer carry out communication.
Preferably, the MCU of the MCU of described the first attitude transducer, described the second attitude transducer, the MCU of the MCU of described the 3rd attitude transducer, described the 4th attitude transducer, the MCU of the MCU of described the 5th attitude transducer, described the 6th attitude transducer and the MCU of described the 7th attitude transducer be connected with total MCU of described controller respectively.
Preferably, the MCU of the MCU of described the first attitude transducer, described the second attitude transducer and the MCU of described the 3rd attitude transducer connect successively, and the MCU of described the 3rd attitude transducer is connected with total MCU of described controller; The MCU of the MCU of the MCU of described the 4th attitude transducer, described the 5th attitude transducer and described the 6th attitude transducer connects successively, and the MCU of described the 6th attitude transducer is connected with total MCU of described controller; The MCU of described the 7th attitude transducer is connected with total MCU of described controller.
Preferably, described gyroscope is three-axis gyroscope.
Preferably, described acceleration transducer is 3-axis acceleration sensor.
Preferably, described magnetoresistive transducer is three axle magnetoresistive transducers.
Preferably, described communication module is wireless or wire communication module, and described communication module is connected with host computer.
Preferably, described communication module is bluetooth communication module.
Preferably, described communication module is wifi communication module.
Compared with prior art, the three-dimensional gait analysis instrument that this utility model provides, use gyroscope, three sensors of acceleration transducer and magnetoresistive transducer, measure the attitude (Eulerian angles of the relative earth of testee, quaternary element, the data such as spin matrix), by measured object relatively starting point with data exercise end, draw the space angle-data that testee swings, the error comprising in measured value is relatively fixing, there is not anthropic factor, and when measuring as long as sensor is arbitrarily arranged on testee surface, guarantee sensor not can and measured object between produce relative displacement, the measurement error that has greatly lowered installation difficulty and caused due to installation, by after all data acquisitions of analyser, carry out human 3d model reconstruction again, then draw various gait datas from model analysis.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of three-dimensional gait analysis instrument in this utility model embodiment;
Fig. 2 is the structured flowchart of the first attitude transducer, the second attitude transducer, the 3rd attitude transducer, the 4th attitude transducer, the 5th attitude transducer, the 6th attitude transducer or the 7th attitude transducer in this utility model embodiment three-dimensional gait analysis instrument.
The specific embodiment
For those skilled in the art can understand technical scheme provided by the utility model better, below in conjunction with specific embodiment, set forth.
Refer to Fig. 1 and Fig. 2, Fig. 1 is the structured flowchart of three-dimensional gait analysis instrument in this utility model embodiment; Fig. 2 is the structured flowchart of the first attitude transducer, the second attitude transducer, the 3rd attitude transducer, the 4th attitude transducer, the 5th attitude transducer, the 6th attitude transducer or the 7th attitude transducer in this utility model embodiment three-dimensional gait analysis instrument.
The three-dimensional gait analysis instrument that this utility model embodiment provides, comprise the first attitude transducer 1, the second attitude transducer 2, the 3rd attitude transducer 3, the 4th attitude transducer 4, the 5th attitude transducer 5, the 6th attitude transducer 6, the 7th attitude transducer 7 and controller 8, wherein:
The first attitude transducer 1 is arranged on human body left ankle joint, and the first attitude transducer 1 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
The second attitude transducer 2 is arranged on human body left foot knee joint place, and the second attitude transducer 2 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
The 3rd attitude transducer 3 is arranged on human body left foot hip joint place, and the 3rd attitude transducer 3 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
The 4th attitude transducer 4 is arranged on human body right ankle joint, and the 4th attitude transducer 4 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
The 5th attitude transducer 5 is arranged on human body right crus of diaphragm knee joint place, and the 5th attitude transducer 5 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
The 6th attitude transducer 6 is arranged on human body right crus of diaphragm hip joint place, and the 6th attitude transducer 6 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
The 7th attitude transducer 7 is arranged on human body waist, and the 7th attitude transducer 7 comprises gyroscope 100, acceleration transducer 200, magnetoresistive transducer 300, data acquisition module 400 and MCU500, and gyroscope 100 is connected with data acquisition module 400; Acceleration transducer 100 is connected with data acquisition module 400; Magnetoresistive transducer 300 is connected with data acquisition module 400; Data acquisition unit 400 is connected with MCU500;
Controller 8 comprises total MCU, communication module and power management module, and wherein, total MCU is connected with communication module; The MCU500 of the MCU500 of the MCU500 of the MCU500 of the MCU500 of the MCU500 of the MCU500 of the first attitude transducer 1, the second attitude transducer 2, the 3rd attitude transducer 3, the 4th attitude transducer 4, the 5th attitude transducer 5, the 6th attitude transducer 6 and the 7th attitude transducer 7 is connected with total MCU of controller; Power management module is powered to the first attitude transducer 1, the second attitude transducer 2, the 3rd attitude transducer 3, the 4th attitude transducer 4, the 5th attitude transducer 5, the 6th attitude transducer 6 and the 7th attitude transducer 7; Power management module is also powered to controller self;
The communication module of controller 8 and host computer 9 carry out communication.
The MCU500 of the MCU500 of the MCU500 of the first attitude transducer 1, the second attitude transducer 2, the 3rd attitude transducer 3 connects successively, and the MCU500 of the 3rd attitude transducer 3 is connected with total MCU of controller; The MCU500 of the MCU500 of the MCU500 of the 4th attitude transducer 4, the 5th attitude transducer 5, the 6th attitude transducer 6 connects successively, and the MCU500 of the 6th attitude transducer 6 is connected with total MCU of controller; The MCU500 of the 7th attitude transducer 7 is connected with total MCU of controller 8.
In the first attitude transducer 1, the second attitude transducer 2, the 3rd attitude transducer 3, the 4th attitude transducer 4, the 5th attitude transducer 5, the 6th attitude transducer 6 and the 7th attitude transducer 7, gyroscope 100 is three-axis gyroscope; Acceleration transducer 200 is 3-axis acceleration sensor; Magnetoresistive transducer 300 is three axle magnetoresistive transducers.
Gyroscope 100 is connected with data acquisition module 400, for reflecting in real time current rotational angular velocity; Acceleration transducer 200 is connected with data acquisition module 400, for reflecting in real time current acceleration condition; Magnetoresistive transducer 300 is connected with data acquisition module 400, for reflecting the component with 3 orthogonal directions of current space magnetic field direction; Data acquisition unit 400 is connected with MCU5, it is synchronous that data acquisition unit 4 becomes the Data collecting conversion of three sensors such as gyroscope 100, acceleration transducer 200 and magnetoresistive transducer 300 needed physical quantity data and three sensors are carried out to data, and data of handling well will be sent to MCU500.
The communication module of controller 8 is wireless or wire communication module, and communication module is connected with host computer.When communication module is wireless communication module, wireless communication module can be selected bluetooth communication module or wifi communication module.In the present embodiment, communication module is bluetooth communication module, and during measurement, operation and installation are convenient.
Compared with prior art, the three-dimensional gait analysis instrument that this utility model provides, use gyroscope, three sensors of acceleration transducer and magnetoresistive transducer, measure the attitude (Eulerian angles of the relative earth of testee, quaternary element, the data such as spin matrix), by measured object relatively starting point with data exercise end, draw the space angle-data that testee swings, the error comprising in measured value is relatively fixing, there is not anthropic factor, and when measuring as long as sensor is arbitrarily arranged on testee surface, guarantee sensor not can and measured object between produce relative displacement, the measurement error that has greatly lowered installation difficulty and caused due to installation, by after all data acquisitions of analyser, carry out human 3d model reconstruction again, then draw various gait datas from model analysis.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use this utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, this utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.