Design of Wearable Multi-data Acquisition Node Based on ZigBee
The clinical evaluation of limb function usually relies on scale evaluation.However,scale eval-uation has the disadvantages of strong subjectivity,inconsistent evaluation criteria and time-consuming.Al-though the evaluation method based on computer vision can capture human body movements,it cannot moni-tor muscle movement status in real time.In order to solve the problem of automatic and high-precision limb function evaluation,this paper proposes a wearable multi-data acquisition node design based on ZigBee.The node is composed of a CC2530 main control chip connected with SEMG sensor and ADXL345 sensor,and multiple sensors transmit data to the sink node through the ZigBee protocol,and finally transmit data to the host computer.The test is carried out by the tester's arm flexion and abduction movement.The experimental results show that the upper computer serial port debugging can successfully receive and display the test data,including the three-axis acceleration value and the EMG voltage value.With the change of action speed,the three-axis acceleration and myoelectric voltage value also change accordingly,which meets the expected re-quirements.
万方数据
维普
