US 5,348,225 AGranted

Cooling/warming control system for an air-conditioner

AssigneeSamsung Electronics Co., Ltd.

InventorEui K. Hwang

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Abstract

A cooling/warming control system of an air-conditioner comprises a transmitting portion and a receiving portion for radiating ultra-sonic waves from the air-conditioner to a room wall surface and receiving the ultra-sonic pulses reflected therefrom using a number of ultra-sonic wave sensors. A microcomputer calculates the time interval from the moment the radiation of the ultra-sonic pulses are transmitted until the reflecting wave pulses are received, measures the room area or volume and compares the measurement with the previous set area or volume, determines the magnitude of the cooling/warming load and then controls the load operating system connected thereto in order to operate loads in multiple stages according to the room temperature.

Claims12

Dependent claims

A cooling/warming control system of an air-conditioner comprising:

at least one ultrasonic wave sensor for radiating ultrasonic waves to a room wall surface and receiving reflected waves;
a transmitting portion for generating pulse signals so that said ultrasonic sensor can radiate said ultrasonic waves;
a receiving portion for receiving said reflected signals, amplifying said reflected signals and converting said reflected signals into digital signals;
a microcomputer for calculating the time interval between the receipt of said pulse signals at said receiving portion until the sampling of said reflected signals, measuring the corresponding radiating distances of said ultrasensors, computing the room area from the measured distances, determining the magnitude of a cooling/warming load in accordance with the computed room area and generating control signals based on the determined magnitude;
and
a load operating system for operating the loads of the air conditioner according to the control signals of said microcomputer.

3 more elements

A cooling/warming control system of an air-conditioner comprising:

at least one ultrasonic wave sensor for radiating ultrasonic waves to a room wall surface and receiving reflected waves;
a transmitting portion for generating pulse signals so that said ultrasonic sensor can radiate said ultrasonic waves;
a receiving portion for receiving said reflected signals, amplifying said reflected signals and converting said reflected signals into digital signals;
a microcomputer for calculating the time interval between the receipt of said pulse signals at said receiving portion until the sampling of said reflected signals, measuring the corresponding radiating distances of said ultrasensors, computing the room size from the measured distances, determining the magnitude of a cooling/warming load in accordance with the computed room size and generating control signals based on the determined magnitude;
and
control means for operating said air-conditioner in accordance with the control signals generated by said micro-computer.

3 more elements

Dependencies are inferred from the claim text.