JPS6222941A - Failure predicting device for air conditioner - Google Patents

Abstract

PURPOSE:To prevent failures previously by automatically and periodically inputting the sensor-detected conditions of an air conditioner and storing them as data for an automatic detection of the alsence of deviation greater than a certain level among data groups. CONSTITUTION:Signals from the sensor 1 are periodically taken in by an inputting means 3 and are converted into data by a means 4 to be stored in a memory device 5 in the order of inputting. A means 6 for making decision reads the data out of the memory means 5, and produces output when there is a deviation greater than a certain level among the data groups which have been read. In this instance, the outputting means 7 outputs the decision made by the decision means 6, and signals the operator with light or sound. Therefore, a prediction of failure can automatically be made, preventing the ocurrence of failures.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioner failure prediction device that automates the daily inspection and maintenance of air conditioners used for air conditioning in buildings and factories.

BACKGROUND OF THE INVENTION Air conditioners play an important role as mechanical equipment that maintains the air surrounding residents in buildings and products in factories in a desired state. And in most cases, they are permanently installed in a specific location, such as a machine room. Therefore, once a breakdown occurs, it has a major impact on the functioning of buildings and factories, so specialized maintenance personnel continue to perform daily inspection and maintenance in an effort to prevent breakdowns from occurring.

In conventional inspection and maintenance, as shown in FIG.
A measuring instrument 12 that measures vibration, temperature, noise, etc. is brought into contact with or close to the air conditioner 2, and the measurement is made and recorded. Based on the results, a malfunction is predicted. Failures were prevented by replacing or repairing them.

Problems to be Solved by the Invention With such conventional methods, it is extremely difficult to measure at regular intervals and on a regular basis. Therefore, it was necessary to compare old and new measured values, which required a lot of effort. Furthermore, it is necessary to decide whether or not to perform replacement or repair based on the comparison results, which poses a problem in that it takes a lot of time and the response to replacement or repair is delayed.

The present invention has been made in view of these points, and an object of the present invention is to provide an air conditioner failure forecasting device that automatically predicts air conditioner failures with a simple configuration and prevents failures from occurring.

Means for Solving the Problems In order to solve the above problems, the present invention includes a centimeter attached to an air conditioner, a means for periodically inputting signals from the sensor, and sequentially converting the input signals into data. A storage device for sequentially storing the data, a means for determining whether or not there is variation of a certain amount or more in the data group, and a means for outputting the determination result.

Effect: With the above configuration, the present invention periodically and automatically inputs the state of the air conditioner, such as vibration, through a sensor, stores it as data, and automatically determines whether or not there is variation above a certain level in the data group. Therefore, maintenance personnel only need to replace or repair the output when they confirm that the output varies.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a failure prediction device for an air conditioner according to the present invention. The signal of the sensor 1 is periodically taken in by the input means 3, converted into data by the data conversion means 4, and stored in the storage device 5.
are stored in chronological order. Note that the storage device 6 has a limited storage capacity, so when the limit is full and the next signal comes in, the data corresponding to the oldest signal will be erased. Reference numeral 6 denotes a determining means that reads out the value of the storage device 6 and outputs an output when a variation of more than a certain level occurs in the read data group.

Reference numeral 7 denotes an output means for outputting the determination result by the determining means 6, and can notify the operator 11 by light, sound, or the like.

Note that the sensor 1 may be one that detects vibration, temperature, or noise, as long as it is related to a failure of the air conditioner 2.

Effects of the Invention As described above, according to the present invention, it is possible to automatically predict a failure of an air conditioner with an extremely simple configuration, and to prevent the occurrence of a failure.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an air conditioner failure prediction device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional method for preventing air conditioner failures. . 1...Sensor, 2...Air conditioner, 3
...Means for inputting, 4...Means for converting into data, 5...Storage device, 6...Means for determining, 7... A means of output.

Claims (4)

[Claims] (1) A sensor attached to an air conditioner, means for periodically inputting signals from the sensor, means for sequentially converting the input signals into data, a storage device for sequentially storing the data, and the data group. 1. A failure forecasting device for an air conditioner, comprising means for determining whether or not a certain level of variation has occurred in the air conditioner, and means for outputting the determination result. (2) Claim 1 in which the sensor is a vibration sensor
Failure forecasting device for air conditioners as described in . (3) Claim 1 in which the sensor is a temperature sensor
Failure forecasting device for air conditioners as described in . (4) Claim 1 in which the sensor is a noise sensor
Failure forecasting device for air conditioners as described in .