KR940002473B1 - Multi-function home-automation expansion board - Google Patents

Abstract

The PC extended card is easily installed in the home PCs and used for the home appliance remote control, housebreaker and house disaster prevention, and the telephone answer service. The card system consists of a bus interface circuit; a radio transmit circuit to send the remotely controlled unit address and control signals; a radio receive circuit to receive housebreaker or anti-disaster sensor signals; an auto power up circuit for waking the system up to the external signal; and auto telephone answering circuit, etc.

Description

Multifunctional Home Automation Expansion Board

1 is a circuit diagram of a multifunctional home automation expansion board according to the present invention.

2 is a schematic diagram of the adapter circuit of the remote control device used in connection with the multifunctional home automation expansion board of the present invention.

3 to 5 show a computer display screen displaying the status information of the multi-functional home automation expansion board of the present invention.

6 to 7 are divided detailed circuit diagrams of one embodiment of the multifunctional home automation expansion board of the present invention.

* Explanation of symbols for main parts of the drawings

1: Microprocessor 2: S-RAM

3: computer automatic power supply relay 4: expansion interface circuit

5: automatic response service circuit 6: decoder circuit

7: Encoder Circuit 8: Wireless Reception Circuit

9: wireless transmission circuit 10: speaker

11 bell detection circuit 12 relay

13: TONE DECOR 14: D-RAM

15: voice IC 16: RF amplifier

17: RF oscillation circuit 18: Low pass filter

19: AF amplifier 20: waveform shaping circuit

21: decoder IC 22: address setting switch

23: relay drive circuit

[Field of Invention]

The present invention relates to a home automation device. More specifically, it relates to a home automation expansion board that can be used by connecting to a home computer. More specifically, the present invention relates to a multifunctional home automation expansion board having remote control of home electric appliances, crime prevention and disaster prevention function, telecontrol and telephone answering service.

[Background of invention]

Due to the rapid development of science and technology, the lifestyle of society is changing rapidly. The representative one is office automation, and it is very convenient at home because of the civilization of washing machine, rice cooker, microwave oven, boiler, air conditioner, audio device, video device and so on. However, furthermore, a home automation apparatus for automatically controlling the home appliances has emerged. The current timer also has the concept of automation, but the range of home automation is expanding beyond simple time control, such as crime prevention for the detection of telecontrol accidents using a telephone from the outside.

However, such a home automation device is bulky and occupies a large space (for example, a device having a size of 350 mm x 490 mm x 60 mm is available on the market) and cannot be moved freely once installed. In addition, even though the number of electrical and electronic products increases, it is difficult to expand the functions due to hardware limitations, and there is a problem that a microprocessor, a control device, inputs / outputs data and has only a remote control function.

That is, in order to use functions such as operation control of home appliances, method disaster prevention function, telecontrol and telephone answering service, separate devices must be used. Therefore, the installation cost increases and the configuration becomes inconvenient to use.

In addition, the home automation device used in connection with a home computer also uses a computer to input data, and the home automation device simply performs remote control, and thus does not perform better than a home automation device not connected to a computer.

[Purpose of invention]

An object of the present invention to provide a multi-functional home automation expansion board that can be used by connecting to a home computer.

Another object of the present invention to provide a multi-functional home automation expansion board that can be used to move freely the home appliances of the control target in the home.

Still another object of the present invention is to provide a multifunctional home automation expansion board having expandability that can adequately cope with an increase in home appliances.

Another object of the present invention to provide a home automation expansion board that can be easily installed at a low price unlike the existing home automation device.

[Summary of invention]

The present invention relates to a home automation expansion board that provides multi-functional home automation that can be used by connecting to an expansion port of a home computer. The present invention provides an interface circuit for connecting data to an expansion port of a computer and receiving data from peripheral devices. A microprocessor that controls the operation, a wireless transmission circuit that transmits the address and data signals of various remote control devices to the adapter, a wireless reception circuit that receives the signal of the method disaster prevention sensor, and a telephone automatic answering service connected in parallel with an external telephone line. Automatic response circuit and method It consists of automatic power supply relay and interrupt processing circuit that supplies power to the computer according to the fault signal of the disaster prevention sensor.In addition to the computer's original functions, it provides remote control, crime prevention, telecontrol and telephone answering service functions. Multifunctional Home Automation Expansion A board.

Detailed Description of the Invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit diagram of a multi-functional home automation expansion board of the present invention, which includes a microprocessor (1), an S-RAM (RAM), a computer automatic power supply relay (3), an expansion interface circuit (4), and automatic Response service circuit (5), decoder circuit (6), encoder circuit (7), radio receiver circuit (8), radio transmitter circuit (9), speaker (10), battery backup circuit (B), and microprocessor (1) It consists of a password setting switch (not shown) for inputting a password. As shown, the microprocessor 1 includes an S-RAM (2) for storing addresses and related data of various remote control devices, a computer power supply relay (3) for supplying power to a computer in an emergency, and a microprocessor (1). Extended interface circuit 4 for data transmission between computers, automatic answer service circuit 5, decoder circuit 6, and encoder circuit 7 which respond to the selected mode according to the selection mode of an external telephone. The circuit is controlled, and the wireless receiver circuit 8 is connected to the decoder circuit 6 and the wireless transmitter circuit 9 is connected to the encoder circuit 7.

The data transmitting and receiving means of the microprocessor 1 and the home computer (not shown) are made by direct address and protocol. These means are by using I / O address of computer expansion slot, serial communication using RS232C or parallel. Use communication method. The choice of this method depends mainly on the specifications of the computer. Although not shown, interrupt handling circuitry can be added as needed.

The multifunctional home automation expansion board of the present invention configured as described above will be described in detail by dividing each function.

Remote control function of home appliance control equipment:

To control the operation time of the remote control device, set a unique address (mainly set as a 7-bit pulse signal) for each controller and store the unique address and on / off operation time in the S-RAM 2, which is a memory device. . The microprocessor 1 compares the current time of program execution with the on / off time of the remote control device, and transmits the unique address of the electronic device whose time coincides to the encoder circuit 7. The signal converted by the encoder circuit 7 is transmitted to each controller through the wireless transmission circuit 9, and when it matches the unique address of the receiving adapter (shown in FIG. 2) built in the controller, the controller is turned on / off. Turn it off.

In the method of inputting information to the S-RAM 2, a computer keyboard or a mouse is used to input information.

The telecontrol, which operates the remote control device using a telephone from outside, retrieves the tone decoder signal of the answering machine service circuit 5 from the microprocessor 1. In other words, when the dial is preset to operate the controller, the microprocessor 1 searches for this signal and, when the correct signal is input, reads the unique address of the controller from the S-RAM 2 and outputs it. The encoder circuit 7 modulates the output signal and transmits it to each control target device through the wireless transmission circuit 9. According to the transmitted signal, the receiving adapter compares the address of the input signal with the built-in address, and turns on / off the controller when the two addresses match.

Method of Disaster Prevention

In case of abnormality in infrared sensor, fire sensor, gas detector, window open sensor, each sensor sends its own address wirelessly by using its own built-in or externally attached transmission adapter. The signal received through the antenna is modulated into a pulse wave through the radio receiving circuit 8, and is then changed in the decoder circuit 6 and input to the microprocessor 1. When the microprocessor 1 detects an input signal and detects an abnormal signal, the microprocessor 1 drives the speaker 10 to generate a warning sound and simultaneously operates the computer automatic power supply relay 3 connected in parallel with the power switch of the computer.

That is, since the error generator VT (Valid Transmission) signal is changed from high to low, the microprocessor 1 detects the unique address and data of the crime prevention and disaster prevention sensor outputted from the decoder circuit 6 and the speaker 10 ) And auto power supply relay (3). The on / off state of the computer is determined by detecting the computer power LED signal. When the power is not supplied, the microprocessor 1 drives the power supply device 3, and an anti-disaster control program, which is an automatic batch file, is started. The started control program records the status of the crime prevention and prevention sensor and outputs the contents to the computer display.

Auto Answer Service

The answering machine service circuit 5 has an answering machine function, a telecontrol function, a message recording function, a time display function and a call blocking function, and has a bell detecting circuit 11, a tone decoder 13, a relay Ry 12, Voice IC 15, D-RAM 14.

In the automatic answering mode, when a call is received from the outside, the microprocessor 1 receives the signal from the bell detection circuit 11 to operate the relay 12 connected to the telephone after the designated number of times, most often 3-4 times. Connect the phone.

If a password signal is not input within the designated time in the tone decoder 13 in the answering machine service circuit 5 after the telephone connection is established, it operates in the answering machine mode and outputs a control signal to ADPCM, an IC15 dedicated to voice input and output. After converting the voice message stored in the RAM 14, the message is transmitted through the telephone line.

After the message is transmitted, the answering machine service circuit 5 switches to the recording state, and when the other party's voice message is input to the voice IC 15 through the telephone line, it is converted into a digital signal using its own D / A converter.

The converted digital signal is stored in the memory area of the memory D-RAM 14 designated by the microprocessor 1, and the microprocessor 1 stores the start address and the stop address of the memory.

When a password is entered, the microprocessor 1 waits in three modes: telecontrol, response message change and recorded message transmission. In the standby mode, selection is made by pressing a preset encryption key. When the telecontrol is selected and the number of the controller is input, the signal through the tone decoder 13 is searched by the microprocessor 1. After that, the address of the remote control device corresponding to the signal is calculated, modulated by the encoder circuit 7, and then transmitted from the wireless transmission circuit 9 to the controller. The transmitted signal is received by the receiving adapter of each remote control device, and if the unique address matches, the relay driving circuit of the receiving adapter is operated to be turned on or off according to the control request.

When the response message change request signal is input, the microprocessor 1 notifies the voice IC 15 of the memory area start address of the automatic response message and switches to the recording mode. The voice IC 15 converts the voice signal transmitted through the telephone line into its own A / D converter and sequentially writes the D-RAM 14 from the start address. If the recording is stopped after a certain time has elapsed, the microprocessor 1 memorizes the sawtower address and changes the contents of the automatic response message from the outside.

Further, when a signal for listening to a telephone reception message is input from outside, the microprocessor 1 notifies the voice IC 15 of the start address of the recorded external message and switches to the playback mode (Play). The voice IC 15 converts the voice data of the D-RAM 14 into an analog signal, i.e., a voice signal, by the voice IC 15 itself D / A converter until the stop address is reached.

In addition, when the selective call mode is selected, the start address of the selective call message " Please press the password " recorded in the D-RAM 14 every time a call is received from the microprocessor 1 to the voice IC 15 is selected. Delivered. The voice IC 15 inputs the internal video from the start address to the stop address from the RAM 14 memory in turn, and is sequentially converted to a voice signal through a D / A converter and then transmitted through a telephone line. After a certain period of time to maintain the standby state, if a specified signal (password) is input, the phone is connected, if not matched, the relay 12 is turned off to block the call.

The multifunctional home automation expansion board can be configured as an external type or an internal type as necessary. In case of external type, it is possible to remote control by installing key box in external case.In case of internal type, install separate receiving circuit and decoder circuit on expansion board and use remote controller composed of key box, encoder circuit and transmitting circuit from outside. This allows control even when the computer is off.

2 is a circuit configuration diagram of a reception adapter for receiving and controlling a remote control signal transmitted from the multi-functional home automation expansion board, and includes an RF amplifier 16, an RF oscillator 17, and a low pass filter 18. Inquiry is made up of the AF amplifier 19, the waveform shaping circuit 20, the decoder IC 21, the unique address setting switch 22, and the relay drive circuit 23.

The carrier including the unique address transmitted through the antenna of the home automation expansion board is received by the receiving adapter. The signal is amplified by the RF amplifier 16 and then passed through an ultra-reproducible demodulation circuit consisting of the RF oscillation circuit 17 and the low pass filter 18, thereby eliminating the carrier and leaving only the low frequency address signal. The low frequency signal is amplified by the AF amplifier 19 and then converted into a pulse signal by the waveform shaping circuit 20 and input to the decoder IC 21. After comparing and searching the pulse signal input from the decoder IC 21 and the two signals by the address setting switch 22 of the receiving adapter, if the two signals match, the relay driving circuit 23 is operated to turn on / off the remote control device. Let's do it.

6 to 7 are detailed circuit diagrams of an embodiment of the present invention using a Z80 microprocessor and an IC chip which are generally used. Reference numerals are the same as those in FIG. 1, and reference numerals A1 to A3 are programmable interface ICs belonging to the Z80 family for data transfer between the Z80 microprocessor and an external device.

Bu is also a buffer IC.

3 to 5 show the function information of the multi-functional home automation expansion board of the present invention on a display screen of a computer, and FIG. 3 shows a control panel of remote control and time control.

The operation start time and end time of the remote control device with the unique address set are input. The time change and the operation mode can be changed by using a key of the computer keyboard or by installing a mouse.

4. In the case of the air conditioner, for example, since the on / off switch is off, the time is set from 12:00 to 14:00 ("OK" is displayed), but the power is not automatically supplied. 5. In case of electric rice cooker, the start time is 06: 00 o'clock and 17: 00 o'clock, so the electric rice cooker is operated by supplying power according to the clock time of the computer.

4 shows the automatic response and message playback control panel. Instructions on the control panel are input to the microprocessor. In the case of recording and playback, the microprocessor controls the mode, start and stop address of the voice IC and the keys indicated by the arrows. Set the start and stop address of the next message on the voice IC to ring through the speaker. When you go out, you will be in Auto Answer Mode and your message will be sent when a call comes from outside. If you set up the selective call mode, if the call comes from outside, use the relay to not ring the ringing tone, and then send the selective call message, “For a call from now, please press the password”. Wait for input.

5 is a crime prevention mode control panel to display the situation according to the signal of each disaster prevention sensor through the speaker to take the necessary action.

The present invention as described above can be easily configured in a small board using various IC chips currently available, one embodiment of which is shown in FIGS. 6 to 7.

Although only the described embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that various changes or modifications can be made within the spirit and scope of the present invention, and such variations and modifications are within the scope of the appended claims. .

Claims (3)

A home automation expansion board connected to a predetermined computer to perform a home automation function, the home automation board comprising: a microprocessor for controlling overall operation of the home automation board; A data transmission interface circuit for connecting the expansion port of the computer and the microprocessor; An address setting and decoder circuit for sending and receiving data; A receiver adapter attached to the remote controller; An automatic answering service circuit connected to a telephone line and having a answering service function; S-RAM which stores the address and control data of various remote control devices and the address and data of the disaster prevention sensor; An encoder circuit for converting information transmitted to operate a remote control device; A wireless transmission circuit which transmits a signal of an encoder circuit; A wireless reception circuit for receiving an abnormal occurrence signal of a crime prevention and disaster prevention sensor; A decoder circuit for converting a signal of the radio receiving circuit; And an automatic power supply relay for supplying power to the computer by the signal of the crime prevention and disaster prevention sensor. 2. The apparatus of claim 1, wherein the automatic answering service circuit detects a telephone signal, a bell detecting circuit for detecting a telephone signal, a relay driving circuit, a tone decoder for converting a signal from a dial into a digital signal recognized by a microprocessor, a voice IC for input / output processing of a voice signal, Multifunctional home automation expansion board, characterized in that consisting of D-RAM for voice recording. The multifunctional home automation expansion board according to claim 1, wherein the microprocessor generates an alarm sound and relays the computer according to the crime prevention signal to automatically supply power and boot the crime prevention control program.