ABSTRACT
This paper describes a detailed procedure for updating of GP TM210 treadmill system without changing the application software.By changing the hardware of computer and updating the operation system,the performance is improved greatly.
ABSTRACT
The principle and characteristics of I2C BUS are introduced as well as its application in multi physiological parameters measurement system.The hardware and software design of I2C BUS of multi physiological parameters measurement system are discussed.The system achieves the purpose of the design and the technology of I2C BUS meets the requirement in multi physiological parameters measurement system,including the acquisition of low frequency physiological parameters.I2C BUS predigests the design of hardware and software,thus reducing the cost of system.[Chinese Medical Equipment Journal,2008,29(2):91-93]
ABSTRACT
Objective To develop a portable and automatic quick screener for noise-induced hearing loss(NIHL),which is suitable for airman and ground crew.Methods Through using audio decoder chip VS1003 to achieve quick screener for noise-induced hearing loss and pre-exposing for special background noise.LPC2148 of ARM7-TDMI configuration was adopted as main controlling chip,and its software design was completed by multitask scheduler based on UCOS-Ⅱ,while the FAT system controlled the read-write to the files in SD card.The signal emergence,change in hearing class,frequency selection as well as records of subject reaction were automatically achieved.Results The system can produce stable signal of exact frequency according to GBZ49-2002 Diagnostic Criteria of Occupational Noise-induced Hearing Loss to output stability of the frequency and intensity of the audio signal,and the specific context of the noise pre-exposure function with screening of hearing impairment was achieved automatically.Conclusion Based on the great power of embedded system and VS1003,the portable and automatic quick screener for noise-induced hearing loss(NIHL) can be developed to carry out many functions,which has several features,such as simple structure,high integration,good stability and use of flexible etc.