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Substitution control method for air conditioner fault sensor

A fault sensor, alternative control technology, applied in heating and ventilation control systems, heating methods, space heating and ventilation, etc., can solve problems such as the impact of daily use by users, and achieve the effect of avoiding inconvenience and improving comfort

Active Publication Date: 2009-08-12
广东科龙嘉科电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing air conditioner adopts the way of shutting down and reporting errors to affect the daily use of users when the sensor fails, the present invention proposes an alternative control method for the failure sensor of the air conditioner. When a certain sensor fails, the main The control module can temporarily use the data measured by other sensors to replace the measured value of the faulty sensor after correction to participate in the control calculation, so as to ensure that the air conditioner can continue to run

Method used

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  • Substitution control method for air conditioner fault sensor
  • Substitution control method for air conditioner fault sensor

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Embodiment 1

[0027] Embodiment 1. This embodiment discloses an alternative control method when the gas pipe sensor of an air conditioner fails, that is, when the air pipe sensor fails, first read the detection value of the coil sensor installed on the radiator of the indoor unit, and record is Te; then correct the detected value Te, that is, add a correction value Δt to replace the detected value of the trachea sensor, which is recorded as Ts; then substitute Ts and Te into the main control program to participate in the control calculation, so as to realize the main The control program continues to run, so that the whole unit can achieve the purpose of non-stop operation while alarming and waiting for repair, which is convenient for users.

[0028] Since the detection value output by the coil sensor and air pipe sensor is generally an analog signal, after being received by the analog-to-digital conversion module inside the indoor unit, it is converted into a corresponding data signal (ie te...

Embodiment 2

[0042] Embodiment 2, this embodiment discloses an alternative control method when the coil sensor installed on the radiator of the indoor unit fails, that is, when the coil sensor of the radiator of the indoor unit fails, read the The detection value of the trachea sensor on the coil is denoted as Ts; the detection value Ts is corrected, that is, after adding a correction value Δt, to replace the detection value of the coil sensor, denoted as Te; and then Ts and Te are substituted into The main control program participates in the control calculation, so as to realize the continuous operation of the main control program, so that the whole unit can achieve the purpose of continuous operation without stopping while the alarm is waiting for repair.

[0043] As in Embodiment 1, the detection values ​​Ts and Te may refer to specific temperature values ​​corresponding to the analog signals output by the gas pipe sensor and the coil sensor, or may refer to voltage values ​​correspondin...

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Abstract

The invention discloses a substitution and control method for a fault sensor in an air conditioner, which is suitable for a coil pipe sensor and a gas pipe sensor for respectively detecting the coil pipe temperature of a radiator of an indoor unit and the gas pipe temperature of an indoor-outdoor union pipe in the indoor unit of the air conditioner. When the gas pipe sensor has fault, the detecting value of the coil pipe sensor substitutes the detecting value of the gas pipe sensor by a correcting method, and participates in the control and calculation of a main control program; and when the coil pipe sensor has fault, the detecting value of the gas pipe sensor substitutes the detecting value of the coil pipe sensor by the correcting method, and participates in the control and calculation of the main control program, thereby ensuring that the unit can continuously run while reporting the error and waiting for maintenance, further avoiding the inconvenience brought to users caused by disorderly closedown and improving the service comfort of products.

Description

technical field [0001] The invention belongs to the technical field of air conditioning and refrigeration engineering, and in particular relates to an alternative control method that uses an alternative method to ensure that the air conditioner can run without stopping when a certain sensor in the air conditioner fails. Background technique [0002] Air conditioners, especially one-to-multiple air conditioners, their main control program needs to use the parameter values ​​measured by temperature sensors distributed at various control points in the refrigeration system to participate in control calculations or make judgments during operation, such as gas pipe sensors and liquid pipe sensors , suction sensor, coil sensor and defrosting sensor, etc., so as to realize the control of compressor, electronic throttle expansion valve, fan and other components according to the calculation or judgment results. If a sensor fails, the main control program will not be able to perform no...

Claims

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Application Information

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IPC IPC(8): F24F11/00
Inventor 吴林涛郭富军
Owner 广东科龙嘉科电子有限公司
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