CN101692977B - A multi-parameter biological information testing platform and testing method - Google Patents
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Abstract
本发明公开一种多参数生物信息测试平台及测试方法，以运动人体为测试对象，同步采集各环节运动学参数、人体与支撑面宏观作用力、足底压力分布特征、身体肌群生物电信息等，并监测人体心肺机能动态变化特征，为相关研究和应用提供理论和平台支撑。本发明包生物测试通道和集成分析软件，测试通道包括同步时钟服务器、步态触觉信息测试单元、表面肌电采集单元、高速影像采集单元、加速度/角度测试单元、心率/脉搏测试单元。在一台中心计算机统一控制下，各子功能仪器经以太网接口实现互联，经时钟同步服务器实现各参数时域精确同步形成综合测试平台；各单元设备也可配置自主分析软件和人机接口，形成独立仪器。为步态分析、体育科研、运动机能与健康评估、基础试验等方面提供一种多源生物信息获取集成测试装置和测试方法。
The invention discloses a multi-parameter biological information testing platform and testing method, which uses a moving human body as a testing object to simultaneously collect kinematic parameters of each link, macroscopic force between the human body and a supporting surface, plantar pressure distribution characteristics, and bioelectrical information of body muscle groups. etc., and monitor the dynamic change characteristics of human cardiopulmonary function to provide theoretical and platform support for related research and applications. The invention includes a biological test channel and integrated analysis software, and the test channel includes a synchronous clock server, a gait tactile information test unit, a surface myoelectricity acquisition unit, a high-speed image acquisition unit, an acceleration/angle test unit, and a heart rate/pulse test unit. Under the unified control of a central computer, all sub-functional instruments are interconnected through the Ethernet interface, and the clock synchronization server realizes the precise synchronization of each parameter in the time domain to form a comprehensive test platform; each unit equipment can also be equipped with independent analysis software and man-machine interface, form an independent instrument. It provides an integrated test device and test method for multi-source biological information acquisition for gait analysis, sports research, motor function and health assessment, and basic tests.
Description
Technical field
The present invention relates to fields such as ergonomics, body gait feature analysis, athletic rehabilitation, anthropomorphic robot, personalized Design of Industrial Product, virtual reality, especially a kind of multiparameter biological information test platform and method of testing.
Background technology
Multidimensional force plate/platform, pressure distribution, surface myoelectric and high speed image system are the main general utility tools of researches on exercise biomechanics.Above-mentioned instrument provides abundant sport biomechanics information, for correlational study work provides quantification, objective basic data.But in use also expose some problems, be mainly reflected in following some:
1, a sport biomechanics laboratory or certain concrete research task need be obtained human body information by many checkout equipments, and at present these equipment from countries in the world manufacturer, purchase cost height, big, the compatible property of maintenance difficulties deficiency;
2, each equipment independent operating does not have unified data exchange agreement each other, and multi-aspect information is difficult to be integrated under the united frame and carries out integrated treatment, analysis and explanation;
3, lack synchronous trigger mechanism between each equipment, be difficult to realize the synchronous acquisition of multi-source data, be unfavorable for the further investigation of sport biomechanics.For example, we find when utilizing digital course that the athlete is carried out the technical Analysis diagnosis, A ground reaction force information, B plantar pressure information and C trunk attitude constantly constantly constantly carried out check analysis, may set up correct power/motion model, neural controlling models hardly, so the reasonability of diagnosis of technique and comprehensively be subjected to very big restriction.Similar puzzlement is more outstanding in the identification research process that carries out based on gait feature.
Human body is a complicated huge system, that its sport biomechanics parameter has is non-linear, the time feature such as distortion and individual difference, have complicated coupled relations such as parallel, feedback and control between the various parameters.Need to adopt multiple information getting method, gather multi-source information and carry out fusion treatment, just might hold the motion essential laws, for correlational study and application provide theory support in Domain Synchronous.Current sport biomechanics information getting method is difficult to mechanical characteristic and behavior state feature complicated in comprehensive, the deep announcement human motion process, can obtain complete human motion state information synchronously, become the key issue of researches on exercise biomechanics.
Summary of the invention
The purpose of this invention is to provide a kind of multiparameter biological information test platform and method of testing, for correlational study and application provide theoretical and the platform support.The present invention includes 9 meters of the length overalls of building, the biomechanics passage of 3 meters of test sections, under the unified control of a central computer, each subfunction instrument connects through Ethernet interface, realizes that through the clock synchronization server each parameter time domain is accurately synchronous, and each unit is integrated into TCH test channel; Also configurable self-analysis software of each unit and man-machine interface form independent instrument.Wherein the device with perfect knowledge property right that surface myoelectric unit, acceleration test unit, heart rate/pulse test unit all adopt us to develop is voluntarily led in clock server module, gait tactile data unit, 16, also can adopt the third party device unit of close function.
Functional unit hardware system of the present invention is constructed as follows:
A kind of multiparameter biological information test platform, comprise by high speed image collection unit, the cascade of many cover gait tactile data test cells, the surface myoelectric collecting unit, acceleration/angle measurement unit, the biomechanics TCH test channel that heart rate/pulse test unit is integrated, it is characterized in that: under the unified control of a central computer, each unit connects through Ethernet interface, the time domain that realizes each unit measurement biological characteristic parameter through clock server is accurately synchronous, integrated each unit is configured to comprehensive test platform, also configurable self-analysis software of each unit and man-machine interface form independent instrument; Integrated all data in the computer are extracted sport biomechanics, physiology's integrated information, set up comprehensive organism information characteristics data base; Be integrated with the analysis software of above-mentioned data in the computer;
The integrated a plurality of high-speed camera heads in described high speed image collection unit are formed high speed image collection analytical equipment, the kinematics information of realizing characteristic portions such as human body end, trunk, barycenter detects, compare the relatedness between announcement human action profile and inside are stressed with body gait tactile data, surface myoelectric information and acceleration, the angular velocity information of each other units synchronization collection;
Described gait tactile data test cell comprises the multidimensional force plate/platform; But the multidimensional force plate/platform has incorporate with it flexible array pick off, based on the synchronous acquisition three-dimensional strength measurement platform signal of FPGA framework and high-speed data acquistion system, Large Volume Data buffer memory, communication interface standard, the clock synchronization protocol of pressure distribution sensor signal; A plurality of multidimensional force plate/platforms cascade successively constitute the gait feature TCH test channel, be used for the complete dynamic informations such as contact characteristic that obtain ground reaction force information, vola and the ground in normal step in week of a people, arch of foot/physiological feature information such as step phase angle, step frequency/step pitch/kinematics informations such as speed/acceleration;
The bioelectrical signals that described surface myoelectric collecting unit is used for people's motion, the relevant muscle group of walking process detects and the time-frequency domain analysis, for motion analysis, locomotion evaluation, athletic injury prediction etc. provide the data support;
Described acceleration/angle measurement unit adopts acceleration and angular-rate sensor, is used for motion, walking process partes corporis humani position, detects as kinematic parameters such as the athletic posture at thigh, shank, foot, center etc. and movement rhythms;
In described heart rate/pulse test unit monitoring walking, the motor process, the situation of change of heart rate/pulse, body mechanics's feature and behavior characteristics analysis under different physical functions, energy expenditure and metaboilic level situation provides the basic data support to same individuality, also for dynamically cardiopulmonary capability evaluation, athletic injury prediction etc. provide the data support.
Described a kind of multiparameter biological information test platform is characterized in that: inner CAN of employing in described each unit or USB change the mode of Ethernet externally by Fast Ethernet interface transfer instruction and data.
Described a kind of multiparameter biological information test platform is characterized in that: the integrated analysis software in the computer its configurable self-analysis software in each unit and man-machine interface, and as analytical tool independently.
Described a kind of multiparameter biological information test platform is characterized in that: the lattice spacing of flexible array pick off is 0.6*0.6 centimetre or color density size in the described gait tactile data test cell; The dot matrix number is 96*64.
Described a kind of multiparameter biological information test platform is characterized in that: include 5 cover gait tactile data test cells, the unit cascaded formation test platform of each gait tactile data.
Described a kind of multiparameter biological information test platform, it is characterized in that: described gait tactile data test cell adopts multi-functional mechanics sensor automatic calibration system that described array pick off is carried out automatic pointwise and demarcates, to improve accuracy of detection, realization large tracts of land contact force information is obtained.
The method of testing of the multiparameter biological information of described multiparameter biological information test platform, it is characterized in that: adopt the described a kind of multiparameter biological information test platform of claim (1), with the surface myoelectric collecting unit, acceleration and angular-rate sensor, heart rate/pulse test unit is worn on human body, human body is after the cascade of many cover gait tactile data test cells, the gait feature TCH test channel walking that a plurality of multidimensional force plate/platforms constitute, and the action profile of gathering human body by high speed image collection unit, the mode that the data that collect are changeed Ethernet by CAN or USB is sent in the computer to be analyzed;
Analysis software integrated in the computer is to all unitary synchrodata organic integration, external equipment by computer can make up man machine interface, in computer, set up the integrated motion model of human body, carry out the comparative analysis and the conjunction coupling analysis of data, extract common feature and personal characteristics data in the human motion process; Integrated analysis software has unified template in the computer, and customizable drainage pattern and unit channel number are selected, and is realizing on the integrated basis of all units synchronization, and each unit also can independent image data; Set up human body comprehensive bio information property data base in the integrated analysis software, for correlation theory research and application and development provide data platform; The data export interface is provided in the integrated analysis software, uses for third party software; Reserve received text data importing interface in the integrated analysis software, can obtain the data of third party's instrument collection and analyze.
The present invention adopts multi-functional mechanics sensor to demarcate subsystem automatically the large tracts of land array pick off in the gait tactile data test cell is carried out automatic pointwise to demarcate.
Synchronous clock server: independently clock server is set, ignores lead transmission delay (twisted-pair feeder 5ns/m), under the pattern, each node operating mode is identical, ignores and accepts Program time delay during the school.
System communication interface: gait sense of touch test cell adopts wired connection, and portable collecting cassette such as myoelectricity, acceleration adopts wireless transmission.The external integrated high-speed Ethernet interface of each sub-instrument wherein, inside can adopt CAN to change the mode of Ethernet.
Being constructed as follows of integrated analysis software of the present invention:
(1) unified data collection and analysis template: the drainage pattern of customizable system and unit channel number are selected, and are realizing that each function subelement also can independent image data on the synchronously integrated basis of functional unit.
(2) each subfunction unit configuration self-analysis software and man-machine interface can be used as independently analytical tool.
(3) the unitary synchrodata organic integration of all functions, make up and merge friendly man machine interface, set up the integrated motion model of human body, carry out the comparative analysis and the conjunction coupling analysis of data, extract common feature and personal characteristics data in the human motion process.
(4) set up human body comprehensive bio information property data base, the test data of every TCH test channel can be real-time transmitted to central database server, for correlation theory research and application and development provide data platform.
(5) provide the data export interface, use for third party software.
(6) reserve received text (as the C3D file) data importing interface, can obtain the data of third party's instrument collection and analyze.
The present invention with respect to the innovative point of prior art is:
One, first various unit detection technique is carried out the functional level organic integration, form multiparameter sport biomechanics comprehensive test platform, kinesiology, kinetics and physiologic parameters in the synchronous acquisition human motion process, multi-source information is analysis-by-synthesis in unified software platform, shows the mechanical characteristic and the behavior characteristics of human body comprehensively.
Its two, adopt pointwise demarcation mode to improve accuracy of detection, realize that the large tracts of land contact force information obtains, for the human body scientific research provides new information gathering equipment, thereby expand, deepen its research intension.
Its three, each subsystem realizes that accurate clock is synchronous, adopts the mode of parallel acquisition, asynchronous transmission, has realized that with lower cost the synchronizing information of many physical parameters is obtained.
Its four, integrated use multidimensional macroscopic view dynamometry and flexible microcosmic dynamometry technology adopt cascade system to make up the gait feature TCH test channel, have realized first that in the sport biomechanics field complete step in week dynamic information obtains.
Description of drawings
Fig. 1 is a system construction drawing of the present invention.
Fig. 2 is each functional unit integrated morphology figure of the present invention.
Fig. 3 is an integrated analysis software architecture diagram in the computer of the present invention.
Flow chart when Fig. 4 is synchronous clock server of the present invention school.
The specific embodiment
Provide a specific embodiment of the present invention in conjunction with the accompanying drawings.
A kind of multiparameter biological information test platform, comprise by high speed image collection unit, the cascade of 5 cover gait tactile data test cells, the surface myoelectric collecting unit, acceleration/angle measurement unit, the biomechanics TCH test channel that heart rate/pulse test unit is integrated, under the unified control of a central computer, each unit connects through Ethernet interface, the time domain that realizes each unit measurement biological characteristic parameter through clock server is accurately synchronous, integrated each unit is configured to comprehensive test platform, also configurable self-analysis software of each unit and man-machine interface form independent instrument; Integrated all data in the computer are extracted sport biomechanics, physiology's integrated information, set up comprehensive organism information characteristics data base; Be integrated with the analysis software of above-mentioned data in the computer; The integrated a plurality of high-speed camera heads in described high speed image collection unit are formed high speed image collection analytical equipment, the kinematics information of realizing characteristic portions such as human body end, trunk, barycenter detects, compare the relatedness between announcement human action profile and inside are stressed with body gait tactile data, surface myoelectric information and acceleration, the angular velocity information of each other units synchronization collection; Gait tactile data test cell comprises the multidimensional force plate/platform; But the multidimensional force plate/platform has incorporate with it flexible array pick off, based on the synchronous acquisition three-dimensional strength measurement platform signal of FPGA framework and high-speed data acquistion system, Large Volume Data buffer memory, communication interface standard, the clock synchronization protocol of pressure distribution sensor signal; A plurality of multidimensional force plate/platforms cascade successively constitute the gait feature TCH test channel, be used for the complete dynamic informations such as contact characteristic that obtain ground reaction force information, vola and the ground in normal step in week of a people, arch of foot/physiological feature information such as step phase angle, step frequency/step pitch/kinematics informations such as speed/acceleration; The bioelectrical signals that the surface myoelectric collecting unit is used for people's motion, the relevant muscle group of walking process detects and the time-frequency domain analysis, for motion analysis, locomotion evaluation, athletic injury prediction etc. provide the data support; Acceleration/angle measurement unit adopts acceleration and angular-rate sensor, is used for motion, walking process partes corporis humani position, detects as kinematic parameters such as the athletic posture at thigh, shank, foot, center etc. and movement rhythms; In heart rate/pulse test unit monitoring walking, the motor process, the situation of change of heart rate/pulse, body mechanics's feature and behavior characteristics analysis under different physical functions, energy expenditure and metaboilic level situation provides the basic data support to same individuality, also for dynamically cardiopulmonary capability evaluation, athletic injury prediction etc. provide the data support.Inner CAN of employing in each unit or USB change the mode of Ethernet externally by Fast Ethernet interface transfer instruction and data.Integrated analysis software in the computer its configurable self-analysis software in each unit and man-machine interface are as analytical tool independently.The lattice spacing of flexible array pick off is 0.6*0.6 centimetre or color density size in the gait tactile data test cell; The dot matrix number is 96*64.
Because this TCH test channel has higher sample frequency, and the flexible sensing array enormous amount after the 5 cover gait sense of touch test cell cascades, need each second data quantity transmitted very big, under the situation that does not have enough big bottom buffer memory, the common USB transmission means does not satisfy transmission requirement, adopt the protocol translation card among Fig. 1, each subfunction unit is through realizing mutual by Fast Ethernet interface and central computer after the transition of communications agreement.The hardware plan of native system can consider to be divided into 2 steps, and the first step realizes function, the scheme optimization upgrading of second step.In the first step scheme: the protocol conversion card among Fig. 1 can adopt the knot communication of CAN (or USB) to Ethernet, and gait sense of touch collecting unit, myoelectricity test cell, acceleration test unit, cardiovascular detecting unit are all with CAN mode and upper layer communication; In the second step scheme, Ethernet interface directly is integrated in the collecting unit, and portable collecting cassette realizes that with wireless the gait sense of touch realizes in wired mode.The high speed image data is directly communicated by letter with the upper strata analysis software after synchronously.
Obviously, those skilled in the art can carry out various changes and modification to each functional unit measuring device of the present invention and measuring method thereof and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
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