| In the first half of 21st century, the world's Population Aging is intensifying, and more than a quarter of old people need to be taken care. As a result, how to properly resolve the old-age security problems will become an important question that human have to face this century. Considering the serious problem of the aged trend of china and the disabled people performing poor action, it's very necessary to develop home service robot for ordinary family. The national "863" key object Home Service Robots in Intelligent Space (project number: 2006AA040206) aims to establish an intelligent space system, in which robot can do it's best to serve people more rapidly, precisely and stably in an unknown or semi-unknown dynamic environment. Home monitor has been an important research topic, with the advances in technology intelligent robots are gradually entering people's lives, combine the two, robot-style home monitoring system will become a new trend of medical equipment.Based on virtual instrument's graphic programming language LabVIEW, a suit of multi-parameter state monitoring system has been designed in this paper for the request of Intelligent Monitoring Accompany System of the project. It can monitor parameters of ECG, blood pressure, heart rate, oxygen saturation, pulse rate, body temperature, etc. When monitoring an abnormal physiological signal, it can remind users to take medicine, have sports or call doctors according to the receiving signal. This paper mainly includes information acquisition, data processing and result expression. The main content of this paper is as follows:Information acquisition: a collection system of physiological parameters, like human 7-lead ECG,12-lead ECG, blood pressure, is constructed. On the fundamental of its existing hardware, we design the serial port acquisition part, using LabVIEW's VISA toolkit, which can collect the information of 7-lead ECG, blood pressure, oxygen saturation and other parameters. We also design the USB port acquisition part based on the design of the DLL file, which can collect the information of 12-lead ECG. The serial port acquisition and USB port acquisition, as two different acquisition modes belong to different systems, to avoid interference and waste of resource, also enhance the development ability of the system.Data processing: We complete the task of ECG signal de-noising, feature extraction, classification and recognition, analysis of other human physiological parameters. Combination the noise source of ECG, we innovative propose a method of the combination of wavelet transform and threshold method, to filter baseline drift, power-line interference, EMG interference. Then, give a new method of quadratic spline wavelet transform to extract characteristics of ECG And on this basis, identify the state of ECG Finally, we analyze and judge the state of other physiological parameters, to complete the function of ECG signal processing and system state recognition.Results expression: The display, storage and transmission of physiological parameters is designed. Using Lab VIEW, we design the display module of waveform, data and the state of the parameters, and mark the abnormal state with specific font size and color. Then, implement the data storage module as spreadsheet form. Finally, we design the data transmission module in two ways of serial port and database, meeting the requirement of guiding robot to assist monitoring.In the end, this paper summarizes all of the work involved in the project, and gives prospect of the later study work.
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