基于振动信号检测的STM心理测试系统设计

Design of STM Psychological Testing System Based on Vibration Signal Detection

为了提高心理测试仪的测试准确率,解决传统心理测试仪成本较高但精准度不高的问题,此次研究采用意法半导体单片机为核心控制器,结合信号处理技术设计出一款可以实时进行生理信号监测的心理测试仪。研究结果表明,该心理测试仪可以达到91.3%的主观评测准确率,并能在较短的时间内完成多种人体生理信号采集,最终得到综合心理评估误差仅有0.46%。故该心理测试仪不仅可以实现检测人的主观心理健康评估,还可以对检测人的生理状态进行监测,以达到降低测试误差的效果。结果表明该心理测试仪具有一定的应用价值。

In order to improve the testing accuracy of the psychological tester,this study uses STMicroelectronics microcontroller as the core controller,combined with signal processing technology to design a psychological tester that can perform physiological signal monitoring in real time.The research results show that the psychological tester can achieve 91.3% accuracy of subjective assessment,and can complete a variety of human physiological signal acquisition in a short period of time,and finally obtain a comprehensive psychological assessment error of only 0.46%.Therefore,the psychological tester can not only realize the subjective mental health assessment of the test person,but also monitor the physiological state of the test person to achieve the effect of reducing the test error.The psychological tester has certain application value.