Sensor signal detection method and device

Abstract

The invention discloses a sensor signal detecting method and device. The device comprises a voltage stabilizing module and a switch module. The voltage stabilizing module is connected with a first capacitor and an input terminal of a sensor to be detected in parallel to stabilize output signals of the sensor, and the output signals of the voltage stabilizing module are connected to the control end of the detecting device via a first resistor and to the collection end of the detecting device via a second resistor. The switch model is arranged between the control end and the collection end to control ON / OFF of a switch according to the input level of the control end, the control end inputs level signals which match the signal types of the sensor, and the signal types include passive and active signals. According to the detecting device and method, the problem that a detection circuit for an air-conditioner controller needs to be designed again due to change of user control demands is solved, the design of the detection circuit is simplified, the cost of components and space is reduced, and the compatibility and general degree of the system are improved.

Description

technical field [0001] The invention relates to the field of electronic control, in particular to a method and device for detecting sensor signals. Background technique [0002] At present, the existing air conditioner controllers, especially the controllers of commercial large-scale air conditioners, are basically customized and developed according to the needs of series models, and large units often have more customization requirements. In order to meet the personalized requirements of customers, often Changes in hardware and software are required to meet different control needs. [0003] Moreover, the existing air-conditioning control system has many inconveniences in the sensor data collection during the experiment and debugging process. For example, when the existing air-conditioning controller detects various sensor signals, it needs the corresponding detection unit circuit respectively Process various types of signals, for example, these signals include 0~10V analog ...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a sensor signal detection scheme to at least solve the problem of redesigning the detection circuit of the air conditioner controller due to the change of user control requirements in the above-mentioned related art

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