JP3424065B2 - Telecon unit - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tele-control unit used in a tele-control system for tele-controlling a controlled device in a home through a telephone line, and particularly, a frequency of an operation sound or the like to be confirmed by tele-control is Transmission frequency band of analog telephone network (300-34
The present invention relates to a technology that can cope with a case where it is outside the range of 00 Hz) and cannot be confirmed by telecontrol via the telephone network as it is.

[0002]

2. Description of the Related Art In a telecontrol system, a user calls a telecontrol unit (telecontrol unit) in a home from a public telephone, a mobile telephone, an office telephone, etc., where he / she is out, and calls a code of an operation number. The teleconverter unit is driven by sending it out through a line, and the controlled equipment is controlled by a teleconverter signal from the teleconverter unit.

The telecontrol system disclosed in Japanese Patent Application Laid-Open No. 62-108657 is constructed as follows. A control device built in the controlled device and a teleconverter unit are connected to each other via a control signal line and a monitor signal line in a wired manner. The remote operator at the destination calls the telecom unit in the unattended home through the telephone line by operating the external telephone, and sends the operation signal to the telecontrol unit through the telephone line by operating the button of the touch-tone telephone. The teleconverter unit decodes the received operation signal and outputs the control signal to the control device of the controlled device via the control signal line. The control device controls the controlled device based on the received control signal, and outputs a monitor signal having a waveform or frequency corresponding to the operation mode at that time to the teleconverter unit via the monitor signal line. The teleconverter unit judges the received monitor signal, converts it into a voice signal, and sends it to an external telephone through a telephone line. A remote operator who is performing telecontrol using an external telephone remotely confirms the operating status of the controlled device in the house from outside.

By the way, the frequency of the voice emitted by a person in general conversation is 100 to 5000 Hz, and the frequency that a person can hear and recognize with his / her ear is from several tens Hz to usually ten and several kHz. In the technical standard of the law, the transmission frequency band of the analog telephone network is specified to be 300 to 3400 Hz.

In the telecontrol system of the above publication, the teleconverter unit and the control device of the controlled device are connected to each other via a control signal line and a monitor signal line in a wired manner, and the controlled device and the teleconverter unit are first connected. Since it is built as one cohesive system from the beginning, the teleconverter unit is designed to generate an audio signal with a frequency within the range of 300 to 3400 Hz from the beginning as an audio signal generated by converting the monitor signal received from the control device. Can be configured as.

[0006]

However, there are the following problems in the telecontrol system for the controlled equipment operated by the wireless remote control. The teleconverter unit wirelessly transmits a remote control signal similar to a wireless remote control transmitter attached to the controlled device, that is, a teleconverter signal to control the controlled device. In other words, it is unthinkable to connect the teleconverter unit and the controlled device in a wired manner from the form of the remote control. Of course, even when checking the operating status of the controlled device via the telephone line,
It is unthinkable to connect the controlled device and the teleconverter unit with a monitor signal line. Therefore, to confirm that the controlled device has been operated by the teleconverter operation,
The reception confirmation sound provided in the controlled device of this type of wireless remote control system is used. That is,
The controlled device receives the remote control signal at its remote control receiving unit, and when the microcomputer confirms the reception, the microcomputer drives the electronic buzzer to output a confirmation sound of electronic beeping. . A user who operates the remote control transmitter indoors confirms whether or not the controlled device operates as intended by listening to the reception confirmation sound. In order to perform the same thing with the teleconverter unit, it is necessary to first install a microphone as a sound receiving means for catching up the reception confirmation sound in the teleconverter unit. Then, the reception confirmation sound is converted into an electric reception confirmation sound signal by the microphone and transmitted to the external telephone through the telephone line. However, the problem here is that the transmission frequency band of the analog telephone network described above is limited to the range of 300 to 3400 Hz. That is, it is because the frequency of the reception confirmation sound, which is a beep, of the electronic sound is set to about 4000 Hz, which is not offensive to the ears and can reach relatively far. If the reception confirmation sound is 4000 Hz, the frequency of the reception confirmation sound signal obtained by converting the reception confirmation sound into an electric signal is also 4000 Hz. Therefore, even if this reception confirmation sound signal is sent to the telephone line as it is, it cannot be transmitted to the remote operator of the external telephone which is performing the telecontrol. In this respect, the difference is that the user in the room can hear the reception confirmation sound, whereas the remote operator who is performing the tele-control of the external telephone cannot hear the reception confirmation sound. If the sound has a frequency within the range of 300 to 3400 Hz, which is the transmission frequency band of the analog telephone network, it can be transmitted to the remote operator of the external telephone that is performing the tele control even if it is sent to the telephone line as it is. But 300 to 3400 Hz
If the frequency is outside the range, it cannot be conveyed.

An object of the present invention is to solve the above problems.

[0008]

A teleconverter unit according to the present invention relates to a teleconverter unit for transmitting a wireless teleconverter signal for telecontrolling a controlled device based on a command from an external telephone.
It has the following elements. First, it is equipped with a sound receiving means such as a microphone that catches up the sound around the teleconverter unit. Further, it is provided with means for detecting a voice signal having a frequency outside the transmission frequency band (300 to 3400 Hz) of the analog telephone network among the voice signals generated by the sound receiving means. Further, it is provided with a transmissible frequency signal generating means for generating an audio signal of a frequency within the above-mentioned transmission frequency band (300 to 3400 Hz) when the detecting means detects an audio signal of a corresponding frequency. There is software in the microcomputer as the detection means, but in addition to this, a resonance circuit may be used in which the resonance frequency is the frequency of the teleconverter reception confirmation sound emitted by the controlled device, or the frequency of the teleconverter reception confirmation sound emitted by the controlled device. Filter circuit that passes nearby (bandpass filter circuit, high-pass filter circuit, etc.)
Alternatively, the hardware configuration may be a logic circuit. As the transmissible frequency signal generation means, there is software in a microcomputer, but a hardware configuration using a logic circuit may be used. Further, the sound of the frequency outside the transmission frequency band of the analog telephone network to be detected by the detecting means may be limited to the teleconverter reception confirmation sound emitted when the controlled device receives the teleconverter signal. Sounds of any audible frequency outside the range of the transmission frequency band (300 to 3400 Hz) may be targeted.

A telecontrol unit is activated by telecontrol from an external telephone, and a telecontrol signal according to an instruction is transmitted wirelessly. The controlled device receiving the teleconverter signal outputs a reception confirmation sound, but the reception confirmation sound is a sound having a frequency outside the transmission frequency band of the analog telephone network that cannot be transmitted by the telephone network. In this case, the detection means detects that. If the detection means is microcomputer software, it detects the frequency,
The frequency is converted into a digital signal, and the digital frequency is the above-mentioned transmission frequency band (300 to 3400 Hz).
Of the transmission frequency band (300 to 3400 Hz) when the determination result is affirmative and the transmission possible frequency signal generating means is made to function.
An audio signal having a frequency within the range is generated, and an audio signal corresponding to this reception confirmation sound is sent to the telephone line. In the case where the detection means has a hardware configuration of a logic circuit, the transmissible frequency signal generation means functions similarly. When the detection means is a resonance circuit whose resonance frequency is the frequency of the teleconverter reception confirmation sound emitted from the controlled device, the resonance circuit resonates, and its output becomes equal to or higher than a predetermined threshold value, and the detection signal Based on the above, the transmittable frequency signal generating means is caused to function similarly. If the detection means is a filter circuit that passes near the frequency of the teleconverter reception confirmation sound emitted by the controlled device, the level of the audio signal that passes through the filter circuit becomes equal to or higher than a predetermined threshold value, and transmission is performed based on the detection signal. The possible frequency signal generating means is made to function similarly. The voice signal of the frequency within the range of the transmission frequency band (300 to 3400 Hz) generated by the transmissible frequency signal generation means is transmitted to the telephone network. A remote operator who is performing telecontrol using an external telephone can listen to the reception confirmation sound emitted from the handset based on the voice signal. Unless a special limitation is applied to the sound receiving means, a sound signal in the frequency range of 300 to 3400 Hz is directly sent to the telephone line as it is, and the remote operator can remotely control various sounds in the house using an external telephone. You can know

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a teleconverter unit according to the present invention will be described below in detail with reference to the drawings. In the following embodiments, a wireless remote control type air conditioner (air conditioner) is taken as an example of the controlled device.

[First Embodiment] FIG. 3 is a system conceptual diagram showing an overall outline of a telecontrol system according to the first embodiment. In FIG. 3, reference numeral 100 is an infrared wireless remote control type air conditioner as a controlled device, and 200 is an accessory to the air conditioner 100, and the infrared air conditioner 100 is wirelessly remoted using an infrared remote control signal. It is a remote control transmitter to control. TC is a teleconverter unit. A general telephone 4 is connected via a modular cord 3 to a bifurcated modular connector 2 which is inserted and connected to a modular jack of a telephone outlet 1 provided on a wall surface or the like in a room. Further, the teleconverter unit TC is connected to the modular connector 2 via another modular cord 5. Reference numeral 50 is a general telephone line (public telephone network) connected to the telephone outlet 1, and 300 is an external telephone.

FIG. 2 shows the appearance of the teleconverter unit TC. FIG. 2 (a) is a plan view, FIG. 2 (b) is a front view, FIG. 2 (c) is a bottom view, and FIG. 2 (d) is a right side. It is a side view. As shown in these figures, the main body 30 of the teleconverter unit TC
Most of the upper surface of the is configured as a remote control mounting portion 31 for mounting the remote control transmitter 200. Both sides of the remote-control mounting portion 31 are raised strips 31a, 31a for positioning and preventing falling. The remote control mounting portion 31 is provided with a hooking protrusion 32 for the remote control transmitter 200 mounted thereon. By locking the remote control transmitter 200 to the hooking protrusion 32, the remote control transmitter 200 is prevented from being accidentally displaced or dropped. The bottom surface of the main body 30 has a wall-mounting engaging portion (not shown), and the teleconverter unit TC can be wall-mounted. The hooking protrusion 32 prevents the remote control transmitter 200 set on the remote control mounting portion 31 in the vertical posture from being accidentally dropped. The hooking protrusion 32 is configured to be upright and inclinable, and can be laid down when not in use. A modular socket 33 into which the modular plug of the modular cord 5 shown in FIG. 3 is detachably inserted and a registration switch 34 are provided on the rear side surface of the main body 30. A battery storage lid 35 is detachably attached to the bottom surface of the main body 30. A battery housing portion (not shown) for housing dry batteries is formed inside the battery housing lid 35.
A power switch 37 and two visible light emitting diodes (LEDs) are provided on the front operation panel 36 on the upper surface of the main body 30.
38 and 39 are provided, and an air hole 40 is formed. An infrared light emitting diode 41 for transmitting the teleconverter signal 23 (see FIG. 1) of the wireless remote controller and a microphone 42 for capturing ambient sound are built in the operation panel section 36. The microphone 42 is arranged corresponding to the air hole 40. An air hole 43 corresponding to the microphone 42 is provided on the bottom surface of the main body 30, and a reset switch 44 is also provided.

There are a plurality of infrared light emitting diodes 41,
Each of the air conditioners 10 transmits a telecon signal which is an infrared remote control signal of the same format as an infrared light emitting diode (not shown) in the remote control transmitter 200.
It is designed to remotely control 0. The infrared light emitting diode 41 has the following six types. One is to send out an infrared teleconverter signal in the vertical direction. The remaining five send infrared remote control signals at an angle of 45 ° obliquely upward and are provided at equal horizontal intervals of 50 °. The half-width of directivity angle of each infrared light emitting diode is 25 °. The vertical infrared light emitting diode covers a range of 25 ° rearward to 25 ° forward with respect to the vertical direction. Since the infrared light emitting diode of 45 ° diagonally upward covers the range of 45 ° diagonally upward and 25 ° downward, the vertical area for transmitting the infrared remote control signal is 25 ° C.
The angle is + 45 ° + 25 ° = 95 °. In addition, the five infrared light emitting diodes that expand in the horizontal direction
A horizontal area of 0 ° × 4 + 25 ° + 25 ° = 250 ° is secured. The reach of each infrared light emitting diode is 7m
The above is secured. However, these numerical values are merely examples for reference, and the present invention is not limited thereto. The operation panel section 36 and the cabinet front section 45 are resin filters that allow only a component in a specific frequency band of the infrared light emitted from the infrared light emitting diode 41 to pass through. By forming the air holes 40 and 43, it is possible to efficiently collect sound in the microphone 42. The power switch 37 is a push-lock type, and it can be seen at a glance whether it is in the ON state in which it is pushed down and fixed in position, or in the OFF state in which it is returned and lifted up and fixed in position. The visible light emitting diode 38 performs an error check of the power supply voltage and the like and displays the operation of remote control transmission, and the visible light emitting diode 39 displays the operation of an incoming call to the telephone line.

FIG. 1 is a block diagram showing the electrical construction of the teleconverter unit TC. In FIG. 1, reference numeral 11 denotes a CPU (central processing unit) as a control unit for controlling the entire system, a ROM (read only memory) storing programs for control / calculation by the CPU, and control / calculation, etc. RAM that supports data and stores data
(Random access memory), which has a function of making various determinations and a function of generating a confirmation / rejection sound signal, 12 is an automatic call receiving section connected to the modular code 5, 13 is a tone signal detecting section, 14
Is a power supply voltage detection circuit for detecting the voltage of the power supply battery set in the battery storage portion inside the battery storage lid 35, 1
5 is an input unit having a power switch 37, a registration switch 34, a reset switch 44, etc., 16 is an LED display unit having visible light emitting diodes 38 and 39, 17 is an infrared light emitting unit having six infrared light emitting diodes 41, 18
Is an oscillating unit having a 4.19 MHz oscillator A and a 32.768 kHz oscillator B, and 19 is an EEPROM as a nonvolatile memory for storing setting data such as a personal identification number and the number of ringing sounds in a nonvolatile manner, 20 Microphone 4
A microphone circuit having 2 and an amplifier circuit, 21 is a resonance circuit, and 22 is a reset circuit.

Next, the operation of the teleconverter unit TC of the first embodiment configured as described above will be described. In order to prevent malfunction of the teleconverter unit TC or misuse such as mischief, a personal identification number is set in advance. In the case where the telephone set 4 is an answering machine and a model capable of setting a password for listening to an answering message by telecontrol is used, a password different from the password of the answering machine is set in the telecon unit TC. In addition, from the external telephone 300 via the telephone line 50, the tele control unit TC
Also, set the number of ringing tones for how many times to ring before operating. It is preferable to set it to a value larger than the number of ringing sounds of the answering machine. That is, this is to allow the answering machine to receive the call first, and to allow the answering machine and the tele-control unit TC to be tele-controlled by the same telephone line. To briefly describe how to set and change the personal identification number and the number of ringing tones, the push button of the telephone 4 in the room which is connected in parallel with the teleconverter unit TC through the bifurcated modular connector 2 is used. . Registration switch 34
While pressing, the operation is performed according to the guidance message generated by the voice synthesis in the microcomputer 11. Operate the push button on the telephone 4,
Enter your PIN or the number of rings.
The confirmation of the input can be confirmed by the message generated by the voice synthesis in the microcomputer 11.
The set secret code and ring tone data are EEPR
It will be stored in the OM 19. Even if the power switch 37 is turned off or the battery is removed, the memory is non-volatile.

When the user at home holds the teleconverter unit TC in his hand and turns on the power switch 37 of the input section 15 in the operation panel section 36, the microcomputer 1
1 reads from the power supply voltage detection circuit 14 to determine whether or not the power supply voltage (battery voltage) is normal. When normal, the visible light emitting diode 38 of the LED display unit 16 in the operation panel unit 36 is set to a predetermined value. The light is turned on for a certain period of time, and when the power supply is abnormal, the visible light emitting diode 38 is blinked for a predetermined period of time. Teleconverter unit TC is DC4.
Although it operates with a power supply voltage of 4 to 6.8V, DC 5.4V is programmed in the ROM as a threshold level for power supply voltage determination, and when it exceeds 5.4V, it is determined to be normal. Also, 5 seconds as the lighting / blinking time in the ROM
Is programmed to. If the battery is dead,
The visible light emitting diode 38 does not operate at all, and the teleconverter unit TC does not operate either. The numerical values exemplified above are merely examples for reference, and the present invention is not limited thereto. In the following description, some numerical values are exemplified, but they should be interpreted in the same manner.

Subsequent to the power supply voltage check, the microcomputer 11 performs a process of reading the data of the personal identification number and the number of ringing tones from the EEPROM 19, and when they are not registered, the visible light emitting diode 38 is turned on for a predetermined time. The time is, for example, 10 seconds. It may be blinking instead of being lit. The user who sees this is prompted to register the personal identification number and the number of ringing tones.

Since the access operation itself for power supply voltage check and EEPROM check is completed instantly,
Before the operation of the light emitting diode, the microcomputer 1
A reference numeral 1 denotes a test teleconverter signal (remote control signal) from the infrared light emitting diode 41 by driving the infrared light emitting portion 17.
23 is transmitted. The test teleconverter signal 23 is, for example, a remote control signal for driving / stopping. In addition, all the teleconverter signals including the remote control signal of this operation / stop are included in the remote control transmitter 200 attached to the air conditioner 100.
It has the same format as the remote control signal in. When the air conditioner 100 receives the teleconverter signal 23, a confirmation sound of "beep" is emitted as in the reception of the remote control signal. When the air conditioner 100 is stopped, the operating state is entered, and when the air conditioner 100 is operating, the stopped state is entered. This allows the user to confirm that the teleconverter unit TC operates normally, and also to confirm that the installation position of the teleconverter unit TC is appropriate. If this test is not successful, check the batteries, change the installation position of the teleconverter unit TC, or check whether the power of the air conditioner 100 itself as the controlled device is turned on. , Air conditioner 10 using remote control transmitter 200
Check if 0 is not broken. Even if the test is successful, the optimum installation is performed by repeatedly changing the position and orientation of the teleconverter unit TC. Even after the air conditioner 100 emits a confirmation sound, the operation of the visible light emitting diode 38 for power supply voltage check and EEPROM check continues. In this way, the operating status of the teleconverter unit TC itself and the installation status of the teleconverter unit TC can be confirmed each time the power switch 37 is turned on.

When leaving the house by going out, the power switch 37 of the teleconverter unit TC is turned on in advance. At this time, the check is performed as described above. When going out, call the telephone from the outside telephone 300 to the absence house and operate the air conditioner 1 via the telecon unit TC.
The operation for telecontrolling 00 is as follows. The telephone number of the home telephone 4 is dialed on the external telephone 300. A call signal is input to the telephone set 4 and the teleconverter unit TC via the telephone line 50. In the teleconverter unit TC, the automatic receiving unit 12 responds to the calling signal, and the microcomputer 11
To the incoming call. The microcomputer 11 blinks the visible light emitting diode 39 in the LED display unit 16 as a call display. For example, lighting for 1 second and turning off for 2 seconds are repeated. The visible light emitting diode 39 is different from the visible light emitting diode 38 that operates during the check. At this time, if another family member is at home, seeing the blinking of the visible light emitting diode 39, he / she knows that there is telecontrol, and he / she refrains from using the telephone 4. In addition, a remote operator who performs tele-control by the external telephone 300 and a home resident have contacted each other in advance, and the home resident is informed whether or not the visible light emitting diode 39 blinks when dialing. It is also possible to make a failure diagnosis of the teleconverter unit TC by seeing it.

If the remote operator who is performing telecontrol using the external telephone 300 is the telephone 30
0 is a tone signal (DTMF: Dual Tone Multi-Frequenc)
y: Press the "*" button to switch to the tone signal if the dial pulse type telephone is not capable of outputting the touch-tone dial signal). When the telephone 300 is a touch-tone telephone, a tone signal is provided from the beginning, and thus switching is unnecessary. The "*" button is a function button provided on the opposite side of the "#" with respect to the "0" in the dial operation portion of the telephone, and actually "*" is rotated by 90 °. Although it is indicated by a mark, since the actual mark symbol cannot be described in the specification, it is indicated by a symbol "*" (asterisk) for convenience. In practice, this "*" button mark is also called "asterisk" or "aster mark" or "rice stamp".

In the meantime, the teleconverter unit TC is calling. Microcomputer 11
Is the number of times the calling signal from the automatic receiving unit 12 is EEPROM
When the number of ringing tones registered in 19 is reached, the automatic incoming call unit 12 is controlled to execute the line connection. As a result, the external telephone 300 and the teleconverter unit TC are connected via the telephone line 50 and the modular cord 5. At this time, the microcomputer 11 uses a confirmation / rejection sound generation means (software) to generate a connection confirmation sound signal corresponding to a connection confirmation sound of, for example, 700 Hz, which is called "pi-po", and is connected from the modular cord 5 via the telephone line 50 to the outside. It is sent to the telephone 300. The external remote operator who is performing the tele control hears the connection confirmation sound "Pippo" and confirms that the tele control unit TC
You will need to check the line connection with. At this time, L
The blinking operation of the visible light emitting diode 39 of the ED display unit 16 is completed. After that, the teleconverter unit TC detects the tone signal in the tone signal detector 13.

The external remote operator who is performing the tele-control pushes the "*" button on the dial operation section of the external telephone 300, and then the ten-key button corresponding to the four-digit number of the personal identification number, and then " Press the * button and dial. This tone signal is sent to the external telephone 30
From 0 to the teleconverter unit TC via the telephone line 50. In the teleconverter unit TC, the microcomputer 11 compares the personal identification number sent out via the tone signal detector 13 with the personal identification number registered in the EEPROM 19 to determine whether or not they match. When they match, the confirmation / rejection sound generating means generates a 700 Hz matching confirmation sound signal corresponding to the matching confirmation sound "pi-po", and the external telephone 3 is connected via the telephone line 50.
To 00. An external remote operator who is performing tele control hears the matching confirmation sound "Pippo",
You will be asked to confirm that the PIN numbers match. At the same time, the microcomputer 11 uses the microphone 42.
Then, the microphone circuit 20 having is turned on. As a result, a sound around the teleconverter unit TC is collected (catch-up). At this time, at the same time, LE
One of the visible light emitting diodes 38 and 39 of the D display unit 16 may be caused to perform an appropriate operation. If the sound collected by the microphone 42 is a sound in the transmission frequency band of the analog telephone network in the range of 300 to 3400 Hz, an audio signal of the same frequency due to the sound is amplified, and then the external sound is transmitted via the telephone line 50. It is sent to the telephone 300 and transmitted to an external remote operator who is performing telecontrol. This remote monitor will be described in detail later. In the case of a dial pulse type telephone, since the "*" button is pressed to switch to the tone signal, the "*" button is pressed twice in succession when the personal identification number is input. . When the tone signal "*" or "*" is detected by the tone signal detector 13, the microcomputer 11 is programmed to interpret the tone signal as a single "*" tone signal.

In the microcomputer 11, the code number received via the tone signal detecting section 13 is the EEPROM 1
If it does not match the PIN code registered in 9 (therefore, it is not appropriate to describe the received PIN code as "PIN code", but it will be expressed as such for convenience), confirmation / rejection The sound generation means (software) generates a rejection sound signal of 500 Hz corresponding to the rejection sound "Boo", and the external telephone 300 is connected via the telephone line 50.
And the secret code mismatch counter is incremented. The external remote operator who is performing the tele control hears the rejection sound "Boo" and is informed that the personal identification number is wrong. In this case, the remote operator again uses the external telephone 300 to
Following the "*" button, carefully remember the correct PIN code, press the numeric keypad button that corresponds to the 4-digit number of the PIN code, and then press the "*" button to dial. If the passwords match, you will hear a match confirmation sound, "Pippo". When the tone signal of the wrong dialing of the personal identification number is input a predetermined number of times (for example, three times), the microcomputer 11 determines the line connection state of the telephone line 50 based on the judgment of the value of the personal identification number mismatch counter at that time. Forcibly disconnect. As a result, unauthorized access is denied. When the personal identification numbers do not match, the visible light emitting diodes 38, 3 of the LED display unit 16 are displayed.
Any one of 9 may be made to perform an appropriate operation.

Now, an external remote operator performs telecontrol using a tone signal in order to control the air conditioner 100 as a controlled device. That is, in the dial operation section of the external telephone 300, the ten key button corresponding to the two-digit operation number and the "*" button are pressed to dial. This tone signal is sent from the external telephone 300 to the teleconverter unit TC via the telephone line 50.
In the teleconverter unit TC, the tone signal detector 1
3, the microcomputer 11 discriminates the operation number based on the transmitted tone signal, and when the operation number is a predetermined operation number, the confirmation / rejection sound generation means generates a 700 Hz signal corresponding to the confirmation sound "pippo". A confirmation tone signal is generated, and the external telephone 3 is connected via the telephone line 50.
To 00. At this time, either one of the visible light emitting diodes 38 and 39 may be caused to perform an appropriate operation at the same time. The external remote operator who is performing the telecontrol hears the confirmation sound "pippo" to confirm that the remote control instruction has arrived at the telecontrol unit TC. However, this alone does not indicate whether the air conditioner 100 was controlled as instructed. At the same time, the microcomputer 11 drives the infrared light emitting section 17 to transmit the teleconverter signal 23 corresponding to the operation number from the six infrared light emitting diodes 41. The correspondence between the two-digit operation number and the command to the air conditioner 100 is set as follows, for example.

“00” …… “Run / Stop” “01” …… “Automatic operation ON (humidification / ventilation ON)” “02” …… “Humidification ON (humidification independent operation)” “03” …… “Ventilation ON (ventilation independent operation) ”etc. Other than this, various arrangements can be made. A maximum of 100 types of commands can be calculated. The teleconverter signal 23 corresponding to each operation number is exactly the same as the format defined in the remote control transmitter 200 attached to the air conditioner 100. Generally, at first, "00 *" is dialed to turn on the air conditioner 100, and an infrared signal of "run / stop" is transmitted as the teleconverter signal 23. At the same time, the visible light emitting diode 38 in the LED display section 16 is caused to blink. At this time, if another family member is at home, seeing the blinking of the visible light emitting diode 38, he / she knows that the current operation of the air conditioner 100 is based on telecontrol and there is no malfunction. You can rest assured and refrain from using the telephone 4. In addition, the remote operator who performs tele-control by the external telephone 300 and the home resident have previously contacted each other, and when the dial is made, the visible light emitting diode 3
It is also possible to carry out a failure diagnosis of the teleconverter unit TC by having a home resident see whether or not the blinking of 8 has been performed.

The telecontrol signal 23 transmitted from the telecontrol unit TC by the telecontrol is the air conditioner 1
When it is received normally by the remote control receiver of 00,
The air conditioner 100 emits a beeping confirmation sound. Its frequency is 4000 Hz. The reception confirmation sound signal generated by the microphone circuit 20 when the reception confirmation sound "beep" is caught up by the microphone 42 is also 4000 Hz. The microphone circuit 20 is designed to attenuate signals other than the same frequency band 300 to 3400 Hz to a predetermined dB (decibel) or less in accordance with the transmission frequency band (300 to 3400 Hz) of the analog telephone network in the technical standards of the Telecommunications Business Law. I have to. The microcomputer 11 sends out the attenuated 4000 Hz reception confirmation sound signal to the telephone line 50, but since it is cut in the telephone exchange, it cannot be heard by an external remote operator performing telecontrol. . However, the reception confirmation sound signal of 4000 Hz generated by the microphone circuit 20 is also input to the resonance circuit 21. Since the resonance frequency of the resonance circuit 21 is set to 4000 Hz, the level of the output signal of the resonance circuit 21 becomes equal to or higher than the threshold level. Therefore, in the microcomputer 11 to which the output signal of the resonance circuit 21 is input, the confirmation / rejection sound generating means is made to function and a "buzz" is generated.
Generates a 0 Hz telecon reception confirmation sound signal, and a telephone line 5
It is sent to the external telephone 300 via 0. At this time, either one of the visible light emitting diodes 38 and 39 may be caused to perform an appropriate operation at the same time. Since this teleconverter reception confirmation sound signal is 500 Hz, which is within the range of 300 to 3400 Hz of the transmission frequency band of the analog telephone network, it is well transmitted through the telephone line 50 and normally passes through the telephone exchange to the external telephone 300. And will be transmitted well. Therefore, the external remote operator who is performing the tele control is called "Boo".
Listen to the teleconverter reception confirmation sound signal of audible frequency of Hz,
It will be confirmed that the remote control instruction has reached the air conditioner 100 via the teleconverter unit TC. if,
If the teleconfirmation confirmation sound "Boo" is not heard despite dialing "00 *" to turn on the air conditioner 100, the remote operator again uses "00" on the external telephone 300. * Will be dialed. It should be noted that although depending on the amplification factor of the microphone circuit 20 and the like, it is also effective to increase the amplification factor as necessary or to perform two-stage amplification to emphasize the presence or absence of various confirmation sounds.

The air conditioner 100 is turned off by an external remote operator.
After confirming that the number is N, the external telephone 3
There is a case where the handset of No. 00 is hooked to hang up the telephone, but generally, in order to set the air conditioner 100 to a desired mode, the dial operation section of the external telephone 300 corresponds to the desired mode. Press the numeric keypad button and the "*" button corresponding to the 2-digit operation number to dial,
Telecontrol is performed using the tone signal. For example, dial "01 *" to remotely command "automatic operation ON (humidification / ventilation ON)." If you want to give a remote command for "humidification ON (humidification independent operation)", select "02
Dial "*". If you want to remotely command "Ventilation ON (ventilation independent operation)", dial "03 *". In any case, the tone signal is sent to the teleconverter unit TC via the telephone line 50 in the same manner as above,
Based on the confirmation of the reception of the tone signal, the microcomputer 11 generates a confirmation sound signal of 700 Hz corresponding to the confirmation sound of "pippo" by the confirmation / rejection sound generation means and sends it to the external telephone 300 via the telephone line 50. At the same time, the infrared light emitting diode 41 is driven to transmit the teleconverter signal 23 corresponding to the operation number, and the visible light emitting diode 38 blinks. When the teleconverter signal 23 is normally received by the remote control receiving unit of the air conditioner 100, the air conditioner 100 will generate a "pit" 400
A reception confirmation sound of 0 Hz is emitted. The reception confirmation sound is caught up by the microphone circuit 20 and the output signal of the resonance circuit 21 becomes higher than the threshold level, so that the microcomputer 11 causes the confirmation / rejection sound generation means to "buzz".
Generate a 500Hz teleconverter reception confirmation sound signal,
It is sent to the external telephone 300 via the telephone line 50. The external remote operator who is performing the telecontrol listens to the teleconverter reception confirmation sound signal of 500 Hz, which is an audible frequency of "Boo", and confirms that the remote control instruction has reached the air conditioner 100 via the teleconverter unit TC. I will confirm. If the teleconverter reception confirmation sound is not heard, the remote operator again tries to use the external telephone 300.
Will dial the same operation number. The operation when an operation number other than the operation number programmed in the microcomputer 11 is sent will be described later.

During or after this, the microphone 42 captures not only the reception confirmation sound of the air conditioner 100 but also the sound around the teleconverter unit TC. If the sound is a sound in the frequency range of 300 to 3400 Hz, it is sent directly from the microphone circuit 20 to the telephone line 50 without passing through the resonance circuit 21, and the remote operator uses the external telephone 300 to detect the surroundings of the telephone line 50. You can hear the sound remotely. For example, if you forget to turn off the TV or radio, you will hear the sound. You may also hear the sounds of pets. In some cases, it is possible to listen to the sound emitted as the air conditioner 100 as the controlled device is operated. Further, if the electric device or the like which has set the timer before going out can catch the sound with the microphone 42, it is possible to confirm whether or not the electric device or the like is operating as desired by telecontrol. it can. Further, the air conditioner 10 as a controlled device that is tele-controlled
Even if 0 makes an abnormal noise, it can be confirmed by telecontrol. Such abnormal noise confirmation is not limited to sounds in the frequency range of 300 to 3400 Hz. Even if it is an abnormal sound of 4000 Hz, when it is repeatedly sounding a plurality of times or continuously, if it is equal to or higher than the threshold level in the resonance circuit 21,
500Hz that the microcomputer 11 is "Boo"
To repeatedly generate the teleconverter reception confirmation sound signal of
An external remote operator hears an abnormal sound such as "bu, bu, bu ..." through the external telephone 300, and the occurrence of abnormality can be known by telecontrol.
There may be a failure of the air conditioner 100 as the controlled device. In addition, it is possible to know the intrusion of a suspicious individual or the occurrence of a fire by collecting sound from the surroundings. If you have a contract with a home security service company, you can immediately call them for emergency treatment.
Alternatively, it is possible to make an emergency call to a police station or a fire station.

Before and after the explanation, the operation when a number other than the operation number programmed in the microcomputer 11 is sent as the operation number will be explained. The microcomputer 11 causes the confirmation / rejection sound generating means to function. Then, a rejection sound signal of 500 Hz corresponding to the rejection sound "Boo" is generated and sent to the external telephone 300 via the telephone line 50, and the timer is started. The external remote operator who is performing the telecontrol will be informed that the operation number was wrong by hearing the rejection sound "Boo". In this case, the remote operator again presses the numeric keypad button and the "*" button corresponding to the 2-digit operation number corresponding to the desired mode on the external telephone 300 to dial. If the operation number is correct, you can hear a 700Hz match confirmation sound called "Pippo".

The operation number can be dialed out any number of times, but when one minute or more elapses without any input after the last tone signal is input, the microcomputer 11 makes a call based on the count of the timer. The line connection state of the line 50 is forcibly disconnected. Also, telephone line 50
Even when 10 minutes have passed since the connection was started, the forced disconnection is performed in the same manner. It addresses the inconvenience of an outside remote operator forgetting to take the handset on-hook or leaving the phone line open due to incorrect on-hook when they finish telecontrol. This is because It should be noted that the predetermined time when the microcomputer 11 forcibly disconnects the line connection state when a predetermined time elapses without any next input from the input of the last tone signal is 1 minute and 30 seconds. It is possible to select the input terminal in the microcomputer 11 with a jumper wire, Low (G
ND) or not.

Also, although not explained, the external telephone 3
Immediately after line connection between 00 and the teleconverter unit TC and every two minutes thereafter (until 10 minutes elapse), the microcomputer 11 reads the power supply voltage detection circuit 14 and the power supply voltage is DC 5.0 V or less. If it is, it is judged that the power supply voltage is abnormal, and the confirmation / rejection sound generating means (software) generates a warning sound signal of 500 Hz corresponding to the warning sound "Boo, Boo, Boo, Boo, Boo ...", External telephone 300 via telephone line 50
And the timer is started. The external remote operator who is performing the tele control will be informed of the power supply voltage abnormality by hearing the warning sound. When the power supply voltage is abnormal, the telecontrol unit TC may malfunction due to telecontrol. Therefore, the remote operator who hears the warning sound immediately receives the external telephone 3
It is necessary to cut off 00. If the timer counts up 1 minute without disconnecting the telephone line, the microcomputer 11 forcibly disconnects the line connection state of the telephone line 50. This ensures safety.

When the intended telecontrol operation or confirmation of the in-home situation is completed normally, the external remote operator turns on the hook of the handset and disconnects the external telephone 300.

The teleconverter unit TC does not operate when the battery in the teleconverter unit TC is completely exhausted or when the battery is forgotten to be inserted. Therefore, it is not possible to perform telecontrol using the external telephone 300, and if the teleconverter unit TC does not respond when the number of ringing tones reaches the set number of ringing tones, it can be determined that the battery has been exhausted or the battery has been forgotten. .

When the battery is replaced, the reset circuit 22 operates and the microcomputer 11 is reset. In consideration of the possibility that the reset circuit 22 is out of order, it is recommended to press the reset switch 44 in the input unit 15 when replacing the battery. The microcomputer 1 can also be operated by pressing the reset switch 44.
1 is reset. However, data such as the personal identification number and the number of ringing tones registered in the EEPROM 19 remain as they are.

Next, the operation in the sleeping mode will be described. The power switch 37 is turned on,
The two oscillators A and B in the oscillating unit 18 are both operating when processing is performed by some operation, but when no processing is performed for a certain period of time or more, and when the power switch 37 is turned on. When turned off, the microcomputer 11 causes the oscillator 18 to
Control the oscillator A of 4.19MHz to stop 3
The operating state of only the oscillator B of 2.768 kHz, that is, the sleeping mode is set. In this teleconverter unit TC, the power consumption in the oscillation circuit is relatively large, and the power consumption increases as the oscillation frequency increases. In the normal state in which the two oscillators A and B are oscillated together and the respective oscillation circuits are operated together, the current consumption is on the order of milliamperes, while one oscillator B is
In the sleeping mode in which only the oscillation circuit is operated, since the frequency is low and the operation of the microcomputer 11 is slow, only a minute current of the order of microamperes is consumed. By significantly reducing the power consumption in this way, it is possible to use the battery for a long period of time without using an AC adapter.
Since the oscillator B having the lower oscillation frequency is in the operating state in the sleeping mode, the microcomputer 11 is warmed up, and immediately when any operation signal is input, the microcomputer 11 is immediately activated.
Can be launched. If the oscillator B is also turned off and is in a completely OFF state, the power switch 37
It takes time to start up the microcomputer 11 when the switch is turned on, which is not preferable as the specification. On the other hand, since it can be battery operated for a long period of time, it does not require an AC adapter,
The initial cost can be reduced and it can contribute to the spread of the telecontrol system. It should be noted that, although it will be described before and after, when there is a telecontrol access using the external telephone 300 in the sleeping mode of the telecon unit TC, that is, when the incoming signal is first received by the automatic incoming call section 12, the microcomputer Based on this, 11 also causes the oscillator A having a higher oscillation frequency in the sleep state to be activated.

However, when the power switch 37 is turned off, the two oscillators A and B may both be turned off so that the oscillator is completely turned off. In addition, the AC adapter may be used regardless of whether the sleeping mode is adopted or the complete OFF mode is adopted.

[Second Embodiment] The second embodiment relates to a telecontrol system relating to a modification of the first embodiment. The reception confirmation sound emitted when the teleconverter signal (remote control signal) is received is outside the range of 300 to 3400 Hz of the transmission frequency band of the analog telephone network.
Moreover, there may be reception confirmation sounds of various frequencies other than the frequency of 4000 Hz. To cope with this, as a modification of the first embodiment, a plurality of sets are prepared so that the resonance frequency can be selected in the resonance circuit and the inductance (L) and the capacitance (C) can be selected or switched. It may be configured to leave. In addition, a plurality of resonance circuits having different resonance frequencies are used, and the confirmation / rejection sound generating means generates sound signals having different frequencies within the range of 300 to 3400 Hz for the sounds of the respective resonance frequencies. You may comprise. Further, the resonance frequency of the resonance circuit may be given a width so that the width of the frequency of the sound that can resonate is widened.

[Third Embodiment] In the third embodiment, in the telecontrol system of the first embodiment, instead of the resonance circuit 21 of the teleconverter unit TC, only a frequency signal near 4000 Hz is passed as shown in FIG. A bandpass filter circuit 21a is provided. The other configurations are similar to those of the first embodiment, and thus the description thereof is omitted.

The telecontrol signal 23 transmitted from the telecontrol unit TC by the telecontrol is the air conditioner 1
When it is received normally by the remote control receiver of 00,
The air conditioner 100 emits a beeping confirmation sound. Its frequency is 4000 Hz. The reception confirmation sound signal generated by the microphone circuit 20 when the reception confirmation sound "beep" is caught up by the microphone 42 is also 4000 Hz. The 4000 Hz reception confirmation sound itself is cut off in the telephone network, so it cannot be heard by an external remote operator who is performing telecontrol. However, 4000Hz generated by the microphone circuit 20
The reception confirmation sound signal of is also input to the bandpass filter circuit 21a. The passband of this bandpass filter circuit 21a is 4000
Since it is set to around Hz, the bandpass filter circuit 21
The level of the output signal of a is higher than the threshold level. Therefore, in the microcomputer 11 to which the output signal of the band-pass filter circuit 21a is input, the confirmation / rejection sound generating means is made to function, and a "H" is called 500H.
A teleconverter reception confirmation sound signal of z is generated and sent to the external telephone 300 via the telephone line 50. This teleconverter reception confirmation sound signal has a frequency of 500 Hz, which is within the range of 300 to 3400 Hz of the transmission frequency band of the analog telephone network, so that it is well transmitted through the telephone network and is well transmitted to the external telephone 300. Therefore, the external remote operator who is performing the telecontrol is called "Boo".
By listening to the teleconverter reception confirmation sound signal of the audible frequency of 00 Hz, it is confirmed that the remote control instruction has reached the air conditioner 100 via the teleconverter unit TC. In addition, on the external telephone 300, "Boo, Boo, Boo ..."
When a repeating or continuous abnormal noise is heard, the occurrence of abnormality can be known by telecontrol. Since the other operations are the same as those in the first embodiment, the description thereof will be omitted.

[Fourth Embodiment] The fourth embodiment relates to a telecontrol system relating to a modification of the third embodiment. Instead of the bandpass filter circuit 21a that passes a frequency signal near 4000 Hz, a high-pass filter circuit that passes a frequency signal of 3400 Hz or higher, which is the upper limit in the transmission frequency band of the analog telephone network of 300 to 3400 Hz, may be used. The air conditioner 100 receives the teleconverter signal 23 from the teleconverter unit TC.
When a 4000 Hz teleconverter reception confirmation sound of “beep” is received, the output signal of the high-pass filter circuit in the passband of 3400 Hz or higher becomes higher than the threshold level, so that the microcomputer 11 performs the confirmation / rejection sound generation means. A "Hz" teleconverter reception confirmation sound signal of 500 Hz is generated and sent to the external telephone 300 via the telephone line 50. An external remote operator who is performing the tele control listens to a teleconverter reception confirmation sound signal having an audible frequency of 500 Hz called "Boo", and the remote control instruction is issued via the teleconverter unit TC to the air conditioner 1
I will confirm that it has reached 00.

In the air conditioner 100, the noise of the refrigerant in the refrigeration cycle, the wind noise of the blower fan, etc.
If there is a sound with a frequency of 00 Hz or more, that sound also passes through the above high-pass filter circuit, and the microcomputer 1
The confirmation / rejection sound generating means of No. 1 generates an audio signal of 500 Hz. Depending on the sound collected, the audio signal is
It corresponds to sounds such as buzz, buzz, buzz .... This generated voice signal is transmitted via the telephone line 50 to the external telephone 3
00, the remote operator knows that sound other than the teleconverter reception confirmation sound is generated.

It is convenient for the user to learn the nature of the sound corresponding to each operation mode of the air conditioner on a daily basis. Through tele control, what kind of sound is "automatic operation ON (humidification / ventilation ON)", what kind of sound is "humidification ON (humidification only operation)"? Learn what the sound is when "Ventilation is ON (ventilation independent operation)" by using a public phone or mobile phone. By doing so, it is possible to easily confirm what kind of operation mode the sound such as "bu, bu, bu, bu ..." heard from the external telephone 300 during telecontrol in actual use. It is possible to judge whether the sound is abnormal or cannot be heard. Further, as another embodiment, the microcomputer 11 of the teleconverter unit TC may be configured to have a learning function of identifying sounds corresponding to various operation modes. The collected sounds are discriminated and the corresponding message is sent to the telephone line 50 by voice synthesis. In this case, the user does not need to learn a lot.

[Embodiment 5] Embodiment 5 relates to a telecontrol system relating to a modification of Embodiment 4. The reception confirmation sound emitted when the teleconverter signal (remote control signal) is received is outside the range of 300 to 3400 Hz of the transmission frequency band of the analog telephone network.
Moreover, there may be reception confirmation sounds of various frequencies other than the frequency of 4000 Hz. In order to deal with this, as a modification of the fourth embodiment, the inductance (L) is set so that the pass band frequency can be selected in the high pass filter circuit.
A plurality of sets may be prepared so that the capacitance and the capacitance (C) can be selected or switched.
In addition, a plurality of high-pass filter circuits having different pass bands are used, and the confirmation / rejection sound generating means generates sound signals having different frequencies within a range of 300 to 3400 Hz for sounds of respective pass frequencies. It may be configured as follows. Furthermore, the passband below 300 Hz and 34
A band elimination filter circuit having a pass band of 00 Hz or higher may be used.

[Sixth Embodiment] When a plurality of air conditioners (usually two) are installed within the reach of the teleconverter signal 23 transmitted from the teleconverter unit TC, only a specific air conditioner is installed. Consider a strategy for telecontrol. Suppose there are two air conditioners. Each comes with a remote control transmitter. If the formats of the infrared remote control signals of both remote control transmitters are the same, both air conditioners will operate when the remote control operation is performed by the first remote control transmitter without change. The same applies when the remote controller is operated by the second remote controller transmitter. In such a case, the first remote controller transmitter controls only the first air conditioner, and the second remote controller transmitter controls only the second air conditioner. It has been devised. That is, in the first remote control transmitter, a jumper wire is attached to the input terminal of the microcomputer and connected to Low (GND), and also in the first air conditioner, a jumper wire is attached to the input terminal of the microcomputer. Connected to Low (GND) beforehand. In the second remote control transmitter and the second air conditioner, such jumper wires are not used for connection. This makes it possible to distinguish the remote control signal transmitted from the first remote control transmitter from the remote control signal of the second remote control transmitter. In accordance with this, when the air conditioner to be tele-controlled via the tele-control unit TC is the first air-conditioner, the tele-control unit T
In the microcomputer 11 of C, a jumper wire may be attached to the input terminal and connected to Low (GND). When it is the second air conditioner that is to be tele-controlled, such jumper wires are not connected.

It should be noted that the teleconverter unit TC may be provided with a learning function similar to that of a so-called learning remote controller so that the infrared remote controller signal data of a standardized format of an arbitrary device of an arbitrary manufacturer can be fetched and stored. Good. Then, each remote control data is associated with a two-digit operation number (00 to 99). By doing so, a plurality of different types of equipment can be individually tele-controlled. The number of digits of the operation number is not limited to two digits and may be one digit or three or more digits.

Confirmation / software which is software in the microcomputer 11 as a transmittable frequency signal generating means.
Although the rejection sound generating means is exemplified, the present invention is not limited to this, and an oscillation circuit having an oscillation frequency (for example, 500 Hz or 1000 Hz) having a cycle in the range of 300 to 3400 Hz may be used. In addition, as a transmissible frequency signal generating means, the frequency exceeds 3400 Hz, or 30
The type of the audio signal generated within the range of 300 to 3400 Hz may be changed according to the level of the frequency of the catched-up sound below 0 Hz. For example, changing the frequency to output from high to low sounds,
The size may be changed and the timbre may be changed. You may combine these arbitrarily. Alternatively, the number of outputs may be changed.

It should be noted that all the numerical values for the frequency, time, number of times, etc. exemplified in the above description are merely examples for reference, and the present invention is not limited thereto and the technical Any value can be set within a reasonable range. Especially, the frequency of the reception confirmation sound emitted by the air conditioner need not be limited to 4000 Hz at all, and 3700 Hz or 4500 Hz or 50
00Hz or the like may be arbitrarily set, and further, the transmission frequency band of the analog telephone network is 300 to 3400Hz.
It may be set to 3300 Hz or 3000 Hz within the range of. Further, a “#” button may be used instead of the “*” button used in the dial operation unit of the external telephone 300 for telecontrol access.

The teleconverter unit TC shown in FIG.
Corresponding to the upper and lower air holes 40, 43 of the main body 30, the thermistor as a temperature sensor is built in, the ambient air temperature is detected by this thermistor, and the air conditioning control is provided based on the detection signal. Good. In this case, when there is a telecontrol access, the temperature detected by the thermistor is converted into a temperature message by voice synthesis, and the external telephone 300 is connected via the telephone line 50.
Tell. Based on the temperature information, the remote operator determines the operation mode and dials the corresponding operation number. The reason why the thermistors are provided corresponding to the air holes 40 and 43 is to allow the temperature detection in the thermistors to be performed accurately.

Although some embodiments have been described above, the technology of each embodiment can be applied to any other embodiment as long as there is no logical contradiction.

Although this is not a modification of the teleconverter unit TC, as a modification of the telecontrol system, a teleconverter signal (remote control signal) is used in a telecontrolled controlled device such as an air conditioner.
300 to 3 as a teleconfirmation confirmation sound when receiving
It may be possible to output a reception confirmation sound in the range of 400 Hz. In this case, the telecontrol unit TC
In, the resonance circuit, bandpass filter circuit, high-pass filter circuit, bandstop filter circuit, etc. may be omitted.

[0051]

According to the present invention, a teleconverter unit for transmitting a wireless teleconverter signal for telecontrolling a controlled device based on a command from an external telephone is provided by the controlled device receiving the teleconverter signal. Even if the confirmation sound is a sound having a frequency outside the transmission frequency band (300 to 3400 Hz) of the analog telephone network that cannot be transmitted by the telephone network, a sound signal having a frequency that is also transmitted by the analog telephone network is generated in response to the sound. As a result, the reception confirmation sound by the controlled device can be remotely transmitted to a remote operator who is performing telecontrol using an external telephone. Further, unless a special limitation is applied to the sound receiving means, the sound signal in the frequency range of the above-mentioned transmission frequency band (300 to 3400 Hz) is directly sent to the telephone line as it is, and the remote telephone using the external telephone is used. Various sounds in the house around the teleconverter unit can be transmitted to the operator remotely. For example, the sound of forgetting to turn off the TV or radio, the sound of electric devices that have set the timer before going out, the sound of pets, the sound of pets, the operation of controlled devices, etc. The remote operator can know the operation sound to be emitted.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration of a teleconverter unit according to a first embodiment of the present invention.

2A and 2B are a plan view, a front view, a bottom view, and a right side view showing the appearance of the teleconverter unit according to the first embodiment.

FIG. 3 is a system conceptual diagram showing an overall outline of a telecontrol system using the teleconverter unit according to the first embodiment.

FIG. 4 is a block diagram showing an electrical configuration of a teleconverter unit according to a third embodiment of the present invention.

[Explanation of symbols]

TC: Telecon unit, 1 ... Telephone outlet,
2 ... Bifurcated modular connector, 3 ... Modular cord, 4 ... Home telephone, 5 ... Modular cord, 11 ... Microcomputer, 12 ...
Automatic incoming call section, 13 ... Tone signal detection section, 14 ... Power supply voltage detection circuit, 15 ... Input section, 16 ... LED display section, 17 ... Infrared emission section, 18 ... Oscillation section,
19 ... EEPROM, 20 ... Microphone circuit, 21
...... Resonance circuit, 21a …… Band filter circuit, 22
...... Reset circuit, 23 ...... Teleconverter signal, 30 ...
… Main body of teleconverter unit, 31… Remote control mounting part, 33… Modular socket, 34… Registration switch, 35… Battery storage lid, 36… Operation panel part, 37… Power switch, 38… Wear Reliable visible light emitting diode, 39 ... Visible light emitting diode for transmitting teleconverter signal, 41 ... Infrared light emitting diode for transmitting teleconverter signal of wireless remote controller, 4
2 ... Microphone, 44 ... Reset switch,
50: telephone line, 100: air conditioner as controlled device, 200: remote control transmitter attached to air conditioner, 300: external telephone

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-58-43098 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H03J 9/00-9/06 H04M 11 / 00-11/10 H04Q 9/00-9/16

Claims (5)

(57) [Claims] 1. A teleconverter unit for transmitting a wireless teleconverter signal for telecontrolling a controlled device based on a command from an external telephone, comprising a sound receiving means.
A means for detecting a voice signal of a frequency outside the transmission frequency band of the analog telephone network among the voice signals generated by the sound receiving means, and the transmission when the detection means detects a voice signal of the corresponding frequency. A teleconverter unit comprising: a transmissible frequency signal generating means for generating an audio signal having a frequency within a range of a frequency band. 2. A teleconverter reception confirmation sound emitted when a controlled device receives a teleconverter signal as a sound having a frequency outside the transmission frequency band of the analog telephone network to be detected by the detecting means. Teleconverter unit described in. 3. The teleconverter unit according to claim 1, wherein the detecting means and the transmittable frequency signal generating means are software in a microcomputer. 4. The teleconverter unit according to claim 2, wherein the detection means is a resonance circuit in which the resonance frequency is the frequency of the teleconverter reception confirmation sound emitted from the controlled device. 5. The teleconverter unit according to claim 2, wherein the detection means is a filter circuit that allows the vicinity of the frequency of the teleconverter reception confirmation sound emitted by the controlled device to pass.