Rehabilitation based on-chip design and application of methods

1. introduction

Human balance is able to carry out all kinds of Sports Foundation, standing, day, walking all need balance.

Once the balance has the disorder, the person's ability to act on the unconstrained, to study, life a great deal of inconvenience. In modern societies, demographic ageing, the elderly due to a disease causing brain damage caused by the reduced ability to balance, operational capabilities. Therefore, clinical treatment, need a function to the balance of the device. Our school in collaboration with shanghairuijinyiyuan, analyzed the domestic and international, on the basis of relevant information, using advanced computer control technology developed a multifunctional body balance rehabilitation equipment. The use of the instrument can be objective, quantitative and balancing test, analysis and training, and balance of static tests and dynamic training. As clinical research provides effective means.

2. instrument features

· Instruments for measuring range: 10---360kg · focus location: ± 1.0mm · power supply 220V AC · instrument provides the weight distribution maps, displacement maps, balance, radar, gravity spectrogram for quantitative analysis of body balance ability. · instrument for static open eyes and the eyes of two States of gravity track testing. available · devices body balance ability of dynamic testing and training.

3. scale rehabilitation equipment design principles

Balance rehabilitation instrument is measured as the focus of the human figure, motion and gravity trajectory analysis in order to get the map of body balance ability in a series of data.

The focus of an object is the object of the section of the joint force of gravity, and the role of the body's Center of gravity is the body parts of forces of gravity. Human stand, will inevitably there is a slight swing and sway, while parts of the body of any activity that will cause the change of body Center of gravity position, so these minor swing and sway will cause the body's centre of gravity location changes. This kind of centre of gravity location changes, and reflects the human body swaying and the extent and pattern of swing, is the study of body balance important functional status.

Accordingly, in balancing the rehabilitation, we use gravity strain and monolithic a gravity test platform, the focus of the human body to stand for real-time measurement of the motion path will be measured gravity trajectory data via RS-232 serial interface to the host computer, gravity test platform test 30 per second personal weight heart moving track data.

In the host computer, use VISUAL BASIC Visual language programming, the gravity test platform of gravity trajectory data calculation, analysis, draw the human body weight exercise dynamic track map, weight distribution, displacement map, radar spectrum, balanced Center of gravity and the parameters that can be divided into open and closed eyes two ways to test the body's Center of gravity trajectory. Clinicians through graphics and parameter table of observation, analysis, can be judged against the illness and treatment.

In order to help balance disorder patients recover balance capacity, the capacity of patients with balance training.

Rehabilitation in balance Analyzer, we use VISUAL BASIC Visual language as well as multimedia technology, design a dynamic equilibrium training program. In the program, use of language, music and animated graphics, so that patients in the pleasant and easy virtual environment balance training and can ability to select patients with balance for your training intensity manner balancing ability of rehabilitation. Clinicians can also select the appropriate scenario, the ability to make balance in patients with rehabilitation and therapy, or balance of a dynamic test.

Rehabilitation in balance Analyzer, gravity trajectory measurement is key to the instrument.

In order for the test and validation platform easy to use, we use a microcontroller for gravity trajectory measurement in real time, using the PC for data processing and generating the necessary graphics.

4. rehabilitation of structure

4.1 rehabilitation apparatus structure diagram

Figure, gravity sensor 1-6 is the model for the weight sensor NEA-60kg, they are installed in the second test platform of three corners, for measuring the body's Center of gravity of the motion parameters.

Gravity sensor output signal is connected with single-chip, chip by 30 times per second sampling speed measured body weight exercise dynamic trajectory, and through RS-232 serial port the data transfer to PC computer. In the computer to measurement data processing, and generate the corresponding image display, also can be documented through the printer.

4.2 test platform

There are two test platform, each an equilateral triangle by 45 cm thick plate 5mm and three gravity sensor.

Three sensors evenly in the testing platform of the three top corners, each sensor measuring range of 0-60 Kg. The average person's weight in 100Kg following, taking into account the impact of the human body to stand up, we design test platform load 0-180Kg, therefore two test platform, the total load is 360Kg. After the test, the test platform fully able to bear, and, in each test platform gravity sensor edge installed anti overload devices.

4.3 gravity trajectory measurement instrument

Measuring instrument selection and MCS CPU chips compatible AT89C52, internal strip 8K bytes Flash can re-writable 1000 times, data is kept for 10 years.

The single-chip low power consumption, easy to modify the program. Responsible for data collection and transmission of real-time. Sensor measurement signal transmitted to transform into a frequency signal through AT89C52 MCU T0-input, high measurement accuracy, ease of photoelectric isolation, strong anti-interference ability. Gravity trajectory sampling through mechanics torque balance theory to implementation. Instrument at the measurement platform three corners, three uniform distributionA force sensor. People stood in the measurement platforms, the body's weight by measuring platforms to force sensor. Single-chip continuously detect sensor output signals, and through the torque balance principle for mechanical calculation, seeking out the trajectory of motion of body Center of gravity, the measurement accuracy of ± 0.1kg SCM acquisition of gravity trajectory data, via RS-232 serial port receives a MAX-232 chip, and through MAX-232 chip and PC Exchange information, complete body Center of gravity trajectory measurement work in real time.

4.4 data processing and image generation system

A PC computer, on a Windows platform, use Visual Basic's serial port programming function reads the data transmitted to SCM.

Data processing, forming a center of gravity map, displacement map, balance, radar, gravity spectrogram, parameters, and other four-figure table information.

In human-computer interaction, logon test ' information, including name, patient number, height, weight, age, gender and other information, and there are language, music, background images and other multimedia be aided.

Visual Basic or VB is a visual language, in the Windows environment of language development tools.

In the application development process, in particular the graphics processing do not have to write code to describe interface elements look and location, as long as the pre-established object onto the point on the screen. In a VB environment, use of event-driven programming mechanisms, innovative and easy-to-use Visual design tools, use the Windows internal application programming interface (API) function, as well as the dynamic link library (DLL), dynamic data exchange (DDE), object linking and embedding (OLE) open database access (ODBC), and other technologies, you can efficiently and quickly developed a Windows environment with powerful, graphical interface rich application software system.

5. project prospect

International application already exists on your computer for body balance ability tests and analysis of, the domestic development of individual units have static balancing instrument.

We developed the body balance rehabilitation apparatus, is drawing on the existing balance of benefits on the basis of a full understanding of the clinical diagnosis requires shanghairuijinyiyuan, developed a test with static and dynamic balance training dual function rehabilitation equipment. In static testing contains more parameters, dynamic training, rehabilitation training content, also including clinical studies section. The instrument can be used as a clinical treatment can also be used for clinical studies, have wide application.

As China's ageing population growth and the development of modern life, the body balance capacity of disease is increasing,

In this area of research and treatment demand is growing.

Import of the equipment is expensive, each instrument in tens of meters, and you do not have localization features, use very inconvenient or difficult to carry out two development. And our own manufacture of equipment, functions better than imports, prices for imported only shijiwanyuan, one-third to one quarter of the instrument, but also facilitate two development. With Medicare coverage and focus on health, on body balance rehabilitation for this type of medical device requirements, there will be a larger development, but also the low price of the instrument easier to enter the community hospital. We believe that balance rehabilitation apparatus will in clinical treatment and clinical studies for a wide range of applications, to contribute to human health, to improve the quality of human life.

Reference documents

1. National computerized body balance Tester application Conference compilations Shanghai rehabilitation medicine neurological rehabilitation Professional Committee 1997 2. Fan Yi of Visual Basic and RS232 serial communication control youth publishing house 2000, 8 3. Changjian's experience health detection and conversion technology machinery industry press 2002, 3 4 Cao Bo Rong, principle and application of single-chip technology China Civil Aviation press 2003, 7 5. Automatic detection of equine belt and other technical machinery industry press 2000, 5 6. Lee Chaoqing PC and microcontroller data communication technology space University Press 2000, 12