JPH0329593A - Remote controlled electric device - Google Patents

Abstract

PURPOSE:To simplify the circuit constitution by allowing a reception circuit to receive a code signal in the nonoperating state and switching the operating mode of a load when the code signal and a code signal stored in the storage circuit are coincident. CONSTITUTION:A code signal using an air propagation signal as a medium is received by a reception circuit 7 and it is stored in a reception signal storage means 12 by the operation of an operation means 4. A control means 10 compares a code signal received by the reception circuit 7 when the operating means 4 is inoperative with the code signal stored in the reception signal storage means 12 and the operating mode of the load is switched when they are coincident. Thus, even when the remote controller for an exclusive transmitter outputting an operating code signal is not prepared in advance, the transmitter of other electrical equipment is used as a deputy transmitter to attain the remote control and the entire cost is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a remotely controlled electric device configured to be operationally controllable by a code f= using an air propagation signal as a medium.

(Prior Art) In recent years, an increasing number of home appliances such as televisions, air conditioners, and air purifiers can be controlled remotely using portable transmitters that output code signals using infrared signals as a medium. These devices are easy to use because they allow remote control using a transmitter without the user having to go to the location where the electrical device is installed and operate it each time. In other words, when a code signal is output from the transmitter to the light receiving section of the corresponding electrical equipment, the receiving circuit installed on the electrical equipment side decodes the code signal and converts it into a pre-stored code signal for operation control. When these code signals match, the operation mode of the electrical equipment is switched and controlled according to the operation control contents.

(Problem to be solved by the invention) By the way, such remote-controlled electrical equipment generally has the following problems:
Since different code signals are used to prevent each other from having adverse effects such as malfunction, a dedicated transmitter can be attached to the electrical equipment as an accessory. Therefore, if you want to perform remote control, you will need a dedicated transmitter, which will increase the GI of the product as a whole.

In addition, since each electrical device has its own dedicated transmitter, if that transmitter breaks down or is lost, it will no longer be possible to remotely control the electrical device. It was an inconvenient thing to do.

The present invention has been made in view of the above circumstances, and its purpose is to eliminate the need for a dedicated remote control transmitter, and to use a transmitter for remotely controlling other electrical equipment as a substitute. An object of the present invention is to provide a remote-controlled electric device that can be used and made inexpensive as a whole.

[Structure of the Invention] (Means for Solving the Problems) A remotely controlled electric device of the present invention includes a receiving circuit that receives a code signal using an airborne signal as a medium, a storage operation means that can be operated externally, a received signal storage circuit that stores the code signal when the receiving circuit receives the code signal when the operating means is in an operating state; and a received signal storage circuit that stores the code signal when the receiving circuit receives the code signal when the operating means is not operating. The present invention is characterized in that it is provided with a control means that compares the code signal with the code signal stored in the storage circuit and switches the operation mode of the load when they match.

Further, a read-only storage circuit in which a predetermined code signal is stored in advance is provided, and the control means is configured to read the code signal when the receiving circuit receives the code signal in a state where the code signal is not stored in the received signal storage circuit. The code signal stored in the read-only storage circuit may be compared with the code signal, and when they match, the operation mode of the load may be switched.

(According to the remote-controlled electric device according to claim 1, by operating the storage operating means, a code signal using an air propagation signal as a medium can be received from a portable transmitter of another electric device.) If the circuit receives the code signal and stores the code signal in the reception signal storage circuit, from then on, if the reception circuit receives the code signal from the transmitter, the Ll means will store the code signal received by the reception circuit. and the hood signal stored in the signal storage circuit, and when they match, the load operation mode is switched, and remote control becomes possible.

According to the remote-controlled electric device according to claim 22, when no code signal is stored in the received signal record {a circuit, the same code signal as a predetermined code signal stored in advance in the read-only storage circuit is exclusively used. By supplying the signal from the f-type transmitter to the receiving circuit, the control means can switch the operating mode of the load. When the dedicated transmitter becomes unusable due to failure or loss, the code signal of the transmitter of another electrical device can be stored in the received signal storage circuit using the operating means, and the code signal can be transmitted. The device can be used as a substitute oscillator in the same manner as in claim 1.

(Example) Hereinafter, an example in which the present invention is applied to a remote-controlled air purifier will be described with reference to FIGS. 1 to 3.

First, in FIG. 2 showing the overall appearance, ] is the main body of the air purifier, which sucks indoor air from the intake port 2 provided on the front, and has an internal fan device and dust removal mechanism (not shown). The air is purified and discharged from an exhaust port 3 provided on the top surface. 4 is an operation switching operation section which is an operation means provided on the top surface of the main body;
This is provided with a run button 4a and a stop button 4b, which are used to start and stop the operation, respectively. Further, during driving, a driving display lamp 4C provided on the driving switching operation section 4 is turned on. Reference numeral 5 denotes a receiving section provided at the upper front of the main body 1, which transmits a code signal using an infrared signal as a medium, which is an airborne signal transmitted from a dedicated portable transmitter 6 for remote control, into the inside of the main body 1. It has become.

Next, in FIG. 1 showing the electrical block configuration of operation control, 7 is a receiving circuit, which receives the infrared code signal transmitted from the dedicated transmitter 6 via the receiving section 5, and converts it into a code. Output as a signal. 8 is a microcomputer, which operates according to the program flowchart shown in FIG. 3, as will be described later. This microcomputer 8 constitutes a control means 10 together with a switching circuit 9, and receives a code signal from the receiving circuit 7 manually and also receives a code signal by operating the run button 4a and stop button 4b of the operation switching operation section 4. manually. 11 is a ROM which is a read-only storage circuit, in which a code signal corresponding to the code signal output from the dedicated oscillator 6 is stored in advance;
Its contents are read out by the microcomputer 8 via the switching circuit 9. Reference numeral 12 denotes a RAM serving as a received signal storage circuit, whose storage state is always maintained by a backup power supply 13, and code signals are written and read by the microcomputer 8 via a switching circuit 9. It has become. In this case, the code signal is written from the microcomputer 8 to the RAM 12 by pressing the operation button 4 of the operation switching operation section 4.
The operation is performed with both the stop button a and the stop button 4b turned on at the same time. Reference numeral 14 denotes a drive circuit, which switches the operating mode of a load 15 such as a fan device, a dust removal mechanism, etc. between operating and stopping modes based on an operating control signal given from the microcomputer 8.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG.

First, in the power-on state, the microcomputer 8 starts the control program according to the flowchart in FIG. However, it is waiting for input. In this state, for example, when the dedicated transmitter 6 is operated and a code signal in the form of an infrared signal is input to the receiving circuit 7 via the receiving section 5, the microcomputer 8 sends an
Determine YESJ and proceed to the next step S.

In this step S, the RAM mode setting state, that is, the state where the RAM mode flag F is not set, is determined to be "NO", and the ROM mode setting state processing is performed. That is, in this state, the microcomputer 8 stores the received signal in the ROM in advance in step S6.
It is compared with the code signal stored in I1, and if the code signal is a stop code, rYEs is sent in step S7.
J is determined, the process jumps to step S8, and a control signal for stopping the operation is given to the drive circuit 14 to stop the load 15.

Further, if the code signal is an operation start code in step S6, it is determined to be rNOJ in step S7, rYESJ is determined in the following step 89, and step SIO
Jump to. Then, in step SIG, a control signal for stopping the operation is given to the drive circuit 14 to start the operation of the load 15. Thereafter, the microcomputer 8 repeats steps S to S4 until it is given a code signal again, and enters an input waiting state.

In addition, when the operation button 4a or the stop button 4b of the direct operation switching j:VI production section 4 is turned on without using the dedicated transmitter 6,
The microcomputer 8 determines rYESJ in step S2 or step S, respectively, and proceeds to step S. Alternatively, in step SIO, the load 15 is controlled to stop or start operating in the same manner as described above.

If the dedicated transmitter 6 breaks down or is lost, for example, if another electrical device has a transmitter 6' that similarly performs remote control using infrared signals, the dedicated transmitter 6 can be activated as follows. You can use a river instead of vessel 6.

That is, in this case, first, the operation button 4a and the stop button 4b of the operation switching operation section 4 are turned on at the same time. This results in
The microcomputer 8 performs rYESJ at step S.
It is determined that the process moves to step Sl1. Here, the microcomputer 8 sets a flag F to switch from the ROM mode to the RAM mode. At this time, when one of the switches of the substitute transmitter 6' is turned on as an operation start switch, the microcomputer 8 receives this code signal and stores it in the RAM 12 as an operation code via the switching circuit 9 (step S+2 and S1,)
. Subsequently, when the other switch of the substitute transmitter 6' is turned on as an operation stop switch, the microcomputer 8 receives this code signal and stores it in the RAM 12 as a stop code via the switching circuit 9 (step S. and S, 5). As a result of the above, the code signal of the substitute oscillator 6' is stored in the RAM 12, and the flag F is set. And after this, microcomputer 8
returns to the input waiting state as described above (steps S to S4 are repeated).

Next, when this substitute oscillator 6' is operated, the infrared signal is given to the receiving circuit 7, and the microcomputer 8 goes to step S5 in the same manner as described above. It is determined that this is the case, and the process proceeds to step Sl6.

In step Sl6, the microcomputer 8 compares the received code signal with the above-mentioned code signal stored in the RAM 12, and determines whether the code signal corresponds to a stop code or an operation code. and,
Step S7, in the same manner as described above according to the corresponding code.
The load 15 is stopped or started through Ss or steps S and +S+o.

Even in this case, the operation can be switched in the same manner as described above by directly operating the operation switching operation section 4.

According to this embodiment, when the run button 4a and the stop button 4b of the operation switching operation section 4 are turned on at the same time,
Since other code signals from the outside can be stored in the RAMI 2 as operation codes and stop codes to control operation, even if the dedicated transmitter 6 is broken or lost and cannot be used, a substitute transmitter can be used. 6' allows remote control and improves usability.

In addition, with such a configuration, the dedicated transmitter 6 can be connected to the main body 1.
Even if you do not purchase the transmitter 6' at the same time, if you have another substitute transmitter 6', you can use it to perform remote photography, so it can be provided to the user at a low cost.

In the above embodiment, the operation switching operation section 4 is used as the operation means.
Although the operation button 4a and the stop button 4b are turned on at the same time to function, the present invention is not limited to this, and a dedicated changeover switch may be provided, for example.

Further, in the above embodiments, the present invention is applied to a transmitter equipped with a transmitter that outputs a code signal using an infrared signal, but the present invention is not limited to this, and can be applied to, for example, a transmitter that transmits a code signal using so-called radio waves. You may do so.

Further, in the above embodiment, the present invention is applied to an air purifier, but the present invention is not limited to this, and can be applied to any remotely controlled electrical equipment such as a television, an air conditioner, etc. Various modifications are possible within the range.

[Effects of the Invention] According to the remotely controlled electric device according to claim 1, a code signal using an air propagation signal as a medium is received by a receiving circuit, and the code signal is stored in the received signal storage means by operating the operating means. The control means compares the code signal received by the receiving circuit when the operating means is not operated with the code signal stored in the received signal storage circuit, and when they match, the operation mode of the load is switched. I decided to do this.

As a result, even if a remote control device such as a dedicated transmitter that outputs an operation code signal is not equipped in advance, remote operation can be performed using the transmitter of another electrical device as a substitute transmitter, and therefore, the overall This has the excellent effect of reducing costs.

According to the remote control electric device according to claim 2, a read-only storage circuit in which a code signal is stored in advance is provided, and the code signal is applied from the receiving circuit in a state where the code signal is not stored in the received signal storage circuit. When a code signal is detected, the control circuit compares the code signal with the code signal stored in the read-only storage circuit, and when the code signals match, the operation mode of the load is switched. As a result, operation can always be controlled using a remote control device such as a dedicated transmitter, and in the event that the dedicated transmitter breaks down or is lost, a transmitter from another electrical device can be used as a substitute transmitter. It has the excellent effect of being able to.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a block diagram of the electrical configuration, FIG. 2 is a perspective view of the overall configuration, and FIG. 3 is a flowchart of a control program. In the drawing, 1 is the main body, 4 is the operation switching operation part (operation means),
4a is a run button, 4b is a stop button, 6 is a dedicated transmitter, 6' is a substitute transmitter, 7 is a receiving circuit, 8 is a microcomputer, 9 is a switching circuit, 10 is a control means, 11 is a ROM (read-only memory) 12 is a RAM (received signal storage circuit), and 13 is a backup power supply.

Claims (1)

[Scope of Claims] 1. A receiving circuit that receives a code signal using an air propagation signal as a medium, a storage operating means that can be operated externally, and the receiving circuit receiving the code signal when the operating means is operated. a received signal storage circuit that stores the code signal when the operating means is not operated, and a code signal that is stored in the storage circuit when the receiving circuit receives the code signal when the operating means is not operated. 1. A remote-controlled electric device comprising: a control means for switching a load operation mode when the two conditions match; 2. A read-only storage circuit is provided in which a predetermined code signal is stored in advance, and the control means reads the code signal when the receiving circuit receives the code signal in a state where the code signal is not stored in the received signal storage circuit. 2. The remotely controlled electric device according to claim 1, wherein the remotely controlled electric device is configured to compare the code signals stored in the read-only storage circuit and, when they match, to switch the operating mode of the load. .