(CN106325152) 1. A method based on the frequency error technique of Internet of Things flue temperature monitoring system calibration type, characterized in, mainly composed of a substation system, through a wireless network is connected to the substation system consisting of a host site system; substation system consists of a single-chip microcomputer substations, each substation of the buzzer is connected to the single-chip microcomputer, 1st wireless transmission module, the signal processing unit and a suction fan controller, a temperature sensor is connected to the signal processing unit W, and is connected to a blower controller consisting of a suction fan; single chip computer system by the master station then the master station, and is connected with the primary station data storage for both single-chip microcomputer, a display, a keyboard and a 2nd wireless transmission module; 1st 2nd wireless network through wireless transmission module is connected to the wireless transmission module; signal processing unit by a processing chip U, VT2 transistor, is connected to the base of the transistor VT2 anode, cathode and the processing chip U CF of the polarity of the capacitor C5 is connected to the pin, with the N pole of the COM U via a resistor R7 is connected to the post-processing chip pins, P U L2 of the rear electrode through an inductance is connected to the processing of the diode D4 CC pin chip, and the processing chip U of the CC pin is connected to the anode, cathode and the emitter of transistor VT2 is connected to the polarity of the capacitor C4, and a processing chip U W with the temperature sensor are respectively of the IN pin and VS is connected to the pin of the signal receiving circuit, and a processing chip U VT2 respectively to the collector of the transistor is connected to a signal pulse-width adjustment circuit CM pin, U OUT pin and a signal processing chip with each of the pulse width adjusting circuit is connected to the sampling signal output circuit, and U are connected in series with the sample processing chip COM pin between the signal output circuit for frequency error correction circuit composition; sampling signal output circuit is connected to the substation single chip.
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