JPH02244999A - Remote control system for subscriber's electric equipment - Google Patents

Abstract

PURPOSE:To economically attain the remote control of a subscriber's electric equipment by allowing a subscriber's equipment control device to modulate a control signal received through a trunk line by spectrum diffusion and to transmit the modulated signal on an AC power supply line and allowing the plural subscriber's electric equipment sides to receive the modulated control signal to control respective subscriber's electric equipments. CONSTITUTION:At the time of detecting a termination signal from a telephone line, a termination detecting circuit 13 informs the detected result to a CPU 15 and the CPU 15 analyzes the contents of a push-button signal, and at the time of receiving a control signal to subscriber's electric equipments 31, 32 to 3n and converts the signal into a format regulated by a previously determined protocol, the converted signal is modulated by spectrum diffusion through an AC IFC 14 and superposed to power supply to an AC power supply line 2 to send the control signal. Each of respective subscriber's electric equipments 31 to 3n demodulates the control signal received from the power supply line 2, and when the demodulated result coincides with its own address, forms an equipment control signal to a control a hot water feeder or the like. Consequently the subscriber's electric equipment can be economically remote controlled through a telephone network.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control system for home electrical equipment that remotely controls home electrical equipment used in a home via a D-talk network.

[Conventional technology]

Conventionally, in this type of remote control system for home electrical equipment, a central office line is directly connected to the home electrical equipment, and a central office line circuit and a push-button signal (hereinafter referred to as PB signal) receiver are installed inside the home electrical equipment. It was configured to have the following.

For example, a home video tape recorder (VTR) with a telephone interface that allows program reservation times to be set from outside via a telephone line, or a tape recorder in a high-fidelity audio center. , audio devices with an answering machine function, etc., each of these devices has an independent office line/interface circuit, and the office lines are also connected independently.

[Problem that the invention seeks to solve]

The above-mentioned conventional home electrical equipment remote control system is configured to include a central office line circuit and a PB signal receiving circuit inside each home electrical equipment, so it is difficult to control multiple home electrical equipment. In this case, it is necessary to install multiple office lines, and conversely, it is necessary to equip each in-home electric device with a station line circuit and a PB signal receiving circuit to correspond to these office lines, which reduces the overall cost. It has the disadvantage of being up.

In addition, if we try to control these domestic electrical devices in the same way from a common in-house device, each domestic electrical device will need to have an interface for that purpose, and the number of circuits installed will be limited. This has the disadvantage of increasing the cost further.

[Means to solve the problem]

The in-house electrical equipment remote control system of the present invention includes an in-home equipment control device connected to a central office line, and a plurality of in-home electrical equipment connected to the in-home equipment control device via AC wiring for supplying power in the home. The home equipment control device includes a station killing circuit that terminates the central office line, an automatic response circuit that automatically responds to incoming calls from the central office line, and a push terminal for receiving calls from the central office line.
The central office line includes a push-button signal receiving circuit for receiving a button signal, and an AC wiring interface circuit having a function of transmitting and receiving signals in a spread spectrum manner on the AC power wiring for power supply in the premises. When the push button signal receiving circuit receives an in-home equipment control signal in the form of a push-button signal via the push-button signal receiving circuit, transmission control means controls the transmission to the plurality of in-home electrical equipments via the C wiring to the spread spectrum modulation. 2. The home electrical equipment has a demodulation circuit that receives the spread spectrum modified control signal and demodulates the received home equipment control signal, and controls the home electrical equipment from the control signal received by the demodulation circuit. The apparatus includes a device remote control circuit including a signal generation circuit that generates a signal.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Fig. 1 is a system configuration diagram showing one embodiment of the present invention;
1 is a block diagram showing an example of the home electrical equipment control device shown in FIG. 1, and FIG. 3 is a block diagram showing an example of the home electrical equipment shown in FIG. 1.

In FIG. 1, the present embodiment includes a home electrical equipment control device 1 connected to a telephone line, and a plurality of home electrical equipment 31, 32, .
~3n, and each in-home electrical equipment 31, 32 . AC supplying AC power to ~3n
A home electrical equipment control device 1 configured with a power wiring 2
In-house electrical equipment 31.32-3 via AC power wiring 2
Weird J with n Hess vector diffusion method! 3 control signal A
It is connected so that it can be transmitted superimposed on C.

In FIG. 2, the home electrical equipment control device 1 in FIG. an incoming call detection circuit 13 that detects an incoming signal from a telephone line, and an AC wiring interface circuit (hereinafter referred to as AC-IFC) that transmits and receives a spread spectrum modulated control signal on the AC power wiring. ) 14, and a central control circuit (hereinafter referred to as CPU) 15 that controls the entire household electrical equipment control device 1.

In Figure 3, the domestic electrical equipment in Figure 1 (water heater) 31
The receiver circuit 311 receives the spread spectrum modulated control signal from the AC power wiring 2, the demodulator circuit 312 demodulates the control signal received by the receiver circuit 311, checks the address of the received control signal, and determines its own address. The control signal generating circuit 313 generates an equipment control signal for the water heater main body 315 when the water heater main body 315 matches the water heater main body 315, and the control circuit 314 controls the water heater main body 315 using the equipment control signal.

Next, the operation of this embodiment will be explained in Figs. 1, 2, and 3.
This will be explained using figures.

First, when the incoming call detection circuit 13 detects an incoming call signal from the telephone line via the office line circuit 11, it notifies the CPU 15.Next, the CPU 15 sends a P
The arrival of the B-times signal is monitored, and if the PB-times signal is received, its contents are analyzed and the in-home electrical equipment 31, 32 . When control signals for ~3n are received, they are converted into a format specified by a predetermined protocol, and then
・■ FC14 performs spread spectrum modulation and sends a control signal to the A and C power lines 2 by superimposing it on the power supplied.

Each home electric device 31, 32. ~3n is from the AC power wiring 2. For example, the water heater 31 receives a spread spectrum modulated control signal in the reception circuit 311, demodulates it in the demodulator 312, and the control signal received in the control signal generation circuit 313 is the self address. If it matches, a device control signal is created, and the control circuit 314 controls the water heater main body 31 according to the content of the device 88 control signal.
5, the hot water temperature, the start of hot water supply, the stop of hot water supply, etc. are controlled.

Next, when the household electrical equipment control device 1 receives information regarding the status of the water heater 31 as a response from the specified household electrical equipment (in this case, the water heater) 31 via the AC power wiring 2 and the A, C/IFC 14. , the CPU 15 converts this into a status display signal according to a predetermined protocol, and transmits a confirmation display signal from the transmission circuit 16 to the telephone line via the office line 11 and the telephone line. As a confirmation display signal,
For example, the information is conveyed to the calling party through speech synthesis.

〔Effect of the invention〕

As explained above, in the present invention, an in-home equipment control device receives a control signal via a central office line, spread-spectrum modulates the control signal, and transmits it on the AC power wiring, thereby transmitting the control signal to multiple in-home electrical equipments. By receiving the modulated control signal and controlling each in-home electrical device, each in-home electrical device does not require a central office line and a central office line interface circuit for the central office line as in the past. , it is effective to remotely control home electrical equipment economically.

[Brief explanation of drawings]

Fig. 1 is a system configuration diagram showing one embodiment of the present invention;
1 is a block diagram showing an example of the home electrical equipment control device shown in FIG. 1, and FIG. 3 is a block diagram showing an example of the home electrical equipment shown in FIG. 1. DESCRIPTION OF SYMBOLS 1... Home electricity v1B control device, 2... AC power wiring, 4... Wiring type, 5... Power supply line, 11...
Office line circuit, 12...Push button signal receiving circuit (
PB receiving circuit>, 13... Incoming call detection circuit, 14...
AC wiring interface circuit (AC-IFC) 15...
・Central control circuit (CPU), 31...In-house electrical equipment (
water heater) 32~3n...house electrical equipment, 311...
Receiving circuit, 312... Demodulation circuit, 313... Control signal generation circuit, 314... Control circuit, 315... Water heater body.

Claims (1)

[Claims] The home equipment control device is configured to include a home equipment control device connected to the office line, and a plurality of home electrical equipments connected to the home equipment control device via AC wiring for supplying power in the home, and the home equipment control device is connected to the home equipment control device. a central office line terminating circuit for terminating the line; an automatic answering circuit for automatically answering incoming calls from the central office line; a push button signal receiving circuit for receiving push button signals from the central office line; and an AC wiring interface circuit having a function of transmitting and receiving signals using a spread spectrum method on AC power wiring for power supply, and transmits a home equipment control signal to the push button via the central office line using a push button signal. It has a transmission control means that performs spread spectrum modulation when received by a signal receiving circuit and controls the transmission to the plurality of home electric devices via the AC wiring, and the home electric devices receive the spread spectrum modulated control signal. It is characterized by having an equipment remote control circuit constituted by a demodulation circuit that demodulates the home equipment control signal received together with the equipment, and a signal generation circuit that creates a control signal for the home electrical equipment from the control information received by the demodulation circuit. A remote control system for household electrical equipment.