JPH0214617B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Technical Field> The present invention relates to an air conditioner whose operation is controlled by control signals transmitted from a wireless remote control device.

<Prior art> Conventionally, in this type of air conditioner, room temperature sensors were installed on both the remote control device and the air conditioner itself, and the operation of the air conditioner was controlled by using the room temperature sensors separately as necessary. was. However, in this case, the room temperature is higher near the remote control device than near the air conditioner itself, so the operating capacity of the air conditioner must be increased, and the user must move away from the remote control device to another location. In order to reduce power consumption, it is necessary to operate the remote control device or the air conditioner itself to switch to control using the room temperature sensor on the air conditioner itself, which is cumbersome.

<Purpose> In view of the above, the present invention is capable of automatically adjusting the temperature around the user to his or her preferred temperature when the user is near the remote control device, and furthermore, automatically adjusting the temperature around the user when the user leaves the remote control device. The purpose of the present invention is to provide an air conditioner that can switch to control using a room temperature sensor on the air conditioner itself, omit the switching operation, and reduce power consumption.

<Embodiments> Hereinafter, embodiments of the present invention will be described based on the drawings. An air conditioner according to the present invention includes an air conditioner main body 1 and a remote control device that transmits a control signal to the air conditioner main body 1. 2, and a room temperature sensor 3A on both the remote control device 2 and the air conditioner main body 1,
3B is provided, and both room temperature sensors 3 are installed as required.
A control device 4 is provided to control the air conditioner body 1 by using output signals from the air conditioner A and 3B, and the remote control device 2 is used to identify whether or not the user A is within a certain range from the device. A user presence identification device 5 is provided, and the control device 4 automatically activates the room temperature sensor 3B of the remote control device 2 when a user presence signal is input from the user presence identification device 5.
It is configured to control the operation of the air conditioner main body 1.

In FIG. 1, 6A is an air conditioner main body 1 that receives control signals from a quadrangular pyramid-shaped remote control device 2.
The receiving section 6B is a transmitting section for control signals of the remote control device 2. Then, the user presence/absence identification device 5
uses a sensor (for example, an ultrasonic transducer) as a human body detection means, and has a configuration as shown in FIG. That is, in FIG. 2, UR is an ultrasonic receiver, 7 is an amplifier that amplifies the ultrasonic signal received by the receiver UR, and 8 is a comparator that compares the output signal of the amplifier 7 with a reference signal and outputs the result. , 9 is a first AND gate that outputs an output signal from the comparator 8 and a window comparator 15 (described later); 10 is a rectifier circuit (flip-flop, etc.) that rectifies the output signal of the first AND gate 9 into a DC signal; 11 is a control circuit such as a microcomputer for instructing control by the room temperature sensor 3B of the remote control device 2 based on the output signal of the rectifier circuit 10.

Further, US is an ultrasonic transmitter that transmits ultrasonic waves within a certain range, 12 is a drive circuit for the transmitter US, 13 is a second AND gate, and 14 is a high frequency oscillator whose output is one input of the second AND gate 13. connected to the end. 15 is the detection range (distance) of user A
This is a window comparator for setting , and its output is input to one side of the first AND gate 9.
Alternatively, 16 is a third AND gate that functions as a one-shot, and the output of the third AND gate 16 is input to one of the window comparator 15 and the second AND gate 13, and both of its input ends are short-circuited to each other to perform differentiation as described below. It is connected to the output end of the circuit 17. The input of the differentiating circuit 17 is connected to the output terminal of the low frequency oscillator 18. The oscillation frequency of this low frequency oscillator 18 is determined based on the relationship with the distance at which the user (human body) A is detected. In this way, the user presence identification device 5 includes a low frequency oscillator 18, a differentiating circuit 17, a third AND gate 16, a window comparator 15, a high frequency oscillator 14, a second AND gate 13, a driving temperature 12, a rectifier circuit 10, a first AND gate 9, comparator 8, amplifier 7, receiver
Consists of UR and transmitter US.

On the other hand, the control device 4 includes a control circuit 11 on the remote control device 2 side and a control circuit 19 on the air conditioner main body 1 side, as shown in FIG. A selection switching function is provided to enable switching from control based on the room temperature sensor 3B on the remote control device 2 side to control based on the room temperature sensor 3A on the air conditioner main body 1 side, and vice versa. have.

FIG. 3 shows the signal waveforms of the main parts of the user presence/absence identification device 5 shown in FIG. D is the output waveform of the second AND gate 13, E is the output waveform of the window comparator 15, F is the output waveform of the amplifier 7, G is the output waveform of the comparator 8, H is the output waveform of the first AND gate 9. , Li is the rectifier circuit 10
This is the output waveform of

In the above configuration, when user A (human body) enters within a certain range of the remote control device 2, first, the low frequency oscillator 18 is oscillated, and a signal as shown in FIG. 3B is output. Differential circuit 1
7 and outputs a signal as shown in FIG.

Furthermore, the high frequency oscillator 14 outputs a signal as shown in FIG.
The output signal is input to the second AND gate 13,
The second AND gate 13 outputs a signal as shown in FIG. 3D. Accordingly, the drive circuit 12 operates according to the signal and drives the transmitter US. The transmitter US then emits ultrasonic waves. Then, it is reflected by user A (human body) and received by receiver UR. The received signal is then amplified by the amplifier 7 and appears as a signal such as a in FIG. At this time, the signal b is a received signal of a direct wave that directly enters the receiver UR from the transmitter US, and the signal c is a received signal reflected from a wall, etc. behind the human body A. And a,
The received signal including b and c is compared with a reference signal (omitted) by a comparator, and a signal above a certain level is output as a signal as shown in FIG. The output signal H of the window comparator 15, which outputs a signal for a certain period of time after the input of this output signal G and the signal C from the third AND gate 16, is the output signal H of the first AND gate 9.
is input, and the received signal (a only) is output as shown in FIG. This output signal is then converted into a DC signal by the rectifier circuit 10 to output a signal as shown in FIG.

During this time, when the human body A exists within a certain range, the remote control device 2 transmits a control signal to the air conditioner main body 1 under the control of the control circuit 11, and the operation of the air conditioner main body 1 is controlled by the remote control device 2. The temperature is controlled by the temperature detected by the room temperature sensor 3B.

When the human body A does not exist within a predetermined range, the control circuit 11 senses the output signal of the user presence identification device 2 and sends it to the control circuit 1 on the air conditioner main body 1 side.
9, and the control circuit 19 on the air conditioner main body side detects the room temperature from the room temperature sensor 3B on the remote control device 2 side to the room temperature sensor 3A on the air conditioner main body 1 side.
Switch to air conditioner main body 1, and air conditioner main body 1
It is controlled by the room temperature sensor 3A on the side. Therefore, since the room temperature near the remote control device 2 is higher than the room temperature near the air conditioner main body 1, the control device 4 is programmed in advance so that the room temperature setting on the remote control device 2 causes the set value on the main body side to be slightly higher. If you keep it,
When user A leaves remote control device 2 and moves to another location, power consumption can be reduced.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention. For example, depending on how the predetermined range is set, the
A plurality of user presence identification devices 5 as shown in the figure may be provided.

<Effects> As is clear from the above description, the present invention includes an air conditioner main body and a remote control device that transmits a control signal to the air conditioner main body, and both the remote control device and the air conditioner main body In an air conditioner, the remote control device is provided with a room temperature sensor and a control device that selectively uses both room temperature sensors as necessary to control the air conditioner main body based on their output signals, A user presence/absence identification device is provided for identifying whether or not a user is present in the room, and the control device automatically adjusts the room temperature of the remote control device when a signal indicating that a user is present is input from the user presence/absence identification device. The present invention relates to an air conditioner characterized in that the operation of the air conditioner body is controlled by a sensor.

Therefore, according to the present invention, by simply placing a remote control device near the user, the user can automatically air-condition the area around him/her to the desired temperature, and also automatically turn off the air when he/she leaves the area. Since it is operated by switching to the room temperature sensor on the harmonizer itself, switching operations can be omitted, and in that case, you can save energy by slightly changing the set temperature using the control device.
It is possible to provide an air conditioner that is extremely effective and easy to use.

[Brief explanation of drawings]

Fig. 1 is a usage state diagram of an air conditioner showing an embodiment of the present invention, Fig. 2 is a block diagram showing the user presence/absence identification device, and Fig. 3 is the timing of signal waveforms of the main parts of Fig. 2. FIG. 4 is a block diagram of the control device. A: User, 1: Air conditioner body, 2: Remote control device, 3A, 3B: Room temperature sensor, 4: Control device, 5: User presence/absence identification device.

Claims (1)

[Claims] 1.Equipped with an air conditioner main body and a remote control device that sends a control signal to the air conditioner main body, both the remote control device and the air conditioner main body are provided with room temperature sensors, and both room temperature sensors are installed as necessary. In an air conditioner equipped with a control device that controls the main body of the air conditioner using output signals thereof, the remote control device is used to identify whether or not there is a user within a certain range from the device. An identification device is provided, and the control device is configured to automatically control the operation of the air conditioner main body using the room temperature sensor of the remote control device when a signal indicating that a user is present is input from the user presence/absence identification device. An air conditioner characterized by: