JPH079308B2 - Air conditioner failure prediction device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner failure prediction device that automates daily inspection and maintenance of air conditioners used for air conditioning in buildings and factories.

2. Description of the Related Art Air conditioners play an important role as mechanical equipment that keeps ambient air around products in residents and factories in buildings in a desired state. And in most cases, it is permanently installed in a specific place such as a machine room. Therefore, once a failure occurs, it will have a major impact on the functions of buildings and factories.
We continue to make efforts to prevent failures.

In the conventional inspection and maintenance, as shown in FIG. 2, a maintenance worker 11 installs a measuring device 12 for measuring vibration, temperature, noise, etc. in the air conditioner 2
Contact or approach to, measure and record, and predict the failure based on the result, blower 13 or cold and hot water coil
The failure was prevented by replacing or repairing the filter 14 and the filter 15.

Problems to be Solved by the Invention In such a conventional method, it is extremely difficult to measure the timed time at a completely constant interval, and the measured values are recorded, and the recorded values are graphed. It was necessary to eliminate the comparison between the old measurement value and the new measurement value, and much labor was required. Further, it is necessary to judge whether to perform replacement or repair based on the result of comparison, which takes a lot of time, and there is a problem that the response to replacement or repair becomes slow.

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

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention sequentially converts the input signal into data, a sensor attached to an air conditioner, a means for periodically inputting a signal from the sensor. Means, a storage device for sequentially storing the data, means for determining whether or not there is a certain degree of variation in the data group, and means for outputting the determination result.

Action The present invention is configured as described above, and periodically inputs the state of vibration of the air conditioner from the sensor automatically, stores it as data, and automatically determines the presence or absence of a certain or more variation in the data group. Therefore, the maintenance personnel need only replace or repair the output only when he / she confirms the output with variations.

Embodiment Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a failure prediction device for an air conditioner according to the present invention. In FIG. 1, reference numeral 1 denotes a sensor, which is attached to the air conditioner 2. The signal of the sensor 1 is periodically taken in by the input means 3 and converted into data by the data conversion means 4, and this data is stored in the storage device 5 as a data group in the oldest order. Since the storage device 5 has a limited storage capacity, the data corresponding to the oldest signal is erased when the next signal comes in after the limit is reached. Reference numeral 6 is a determination means for reading each data group stored in the storage means 5. Then, the read data groups are compared with each other, and if there is a certain variation or more between the data groups, this is output as an abnormality. Reference numeral 7 is an output means for outputting the determination result by the determination means 6, and the operator 11
It can be notified by light or sound.

The sensor 1 may be one that detects vibration, one that detects temperature, or one that detects noise, as long as it is related to the 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 prevent occurrence of a failure in advance.

[Brief description of drawings]

FIG. 1 is a block diagram showing a failure prediction device for an air conditioner according to an embodiment of the present invention, and FIG. 2 is a block diagram showing a conventional method for preventing a failure of an air conditioner. 1 ... Sensor, 2 ... Air conditioner, 3 ... Input means, 4 ... Data conversion means, 5 ... Storage device, 6 ...
Determining means, 7 ... Outputting means.

Claims (4)

[Claims] 1. A sensor mounted on an air conditioner, means for periodically inputting a signal from the sensor, means for sequentially converting the input signal into data, and a storage device for sequentially storing the data as a data group. And means for determining whether or not a certain degree of variation has occurred between the data groups,
A failure prediction device for an air conditioner, comprising: means for outputting the determination result. 2. The failure prediction device for an air conditioner according to claim 1, wherein the sensor is a vibration sensor. 3. The failure prediction device for an air conditioner according to claim 1, wherein the sensor is a temperature sensor. 4. The failure prediction device for an air conditioner according to claim 1, wherein the sensor is a noise sensor.