由于温度在空间中分布不均匀，在进行温度检测时会出现检出温度随着温度传感器放置位置的不同而不同的现象，这时就需要知道特定空间内的温度分布曲线。而在实际应用中也经常需要同时检测特定空间内多点的温度值。给出了一个可行的进行多通道实时温度检测的设计方案。介绍了多通道实时温度检测仪的设计背景和设计原理，给出了下位机硬件电路的设计方法和电路原理图，*后介绍了分段线性插值计算方法和滑动窗口的算法思想以及下位机的软件流程图。 Design of Multi-channel Real-time Thermometer Based on PIC１６F８７３ XIAO Wei-quan，CAI Chun-jie (Institude of Intelligent Machines， Chinese Academy of Sciences，Hefei ２３００３１，China) Abstract：Because of the uneven temperature's distribution in the space，the detected temperature'value will vary with the different placement of the temperature sensor in detecting temperature and then need to know the distributing curve of temperature in the given space． And is often required to detect the temperature of several points in the given space at the same time in the practical applications．Based on the above-mentioned backdrop，a feasible design scheme to detect real-time temperature of several points was given． The background and principle of the thermometer was introduced，and the hardware circuit and design method was given，Finally”presented the calculation method of the piecewise linear interpolation and the principle of the sliding windows arithmetic ，also the software flow chart． Key words：PIC singlechip；piecewise linear interpolation ；sliding windows arithmetic；temperature detecting