KR920001547B1 - Apparatus for multiplexing multi-signal data combined with voice signal - Google Patents

Abstract

a microprocessor (10) for outputting control signals based on the data received from a fire detector device (1) , a gas detector (2), a theft detector (3), and an absence switch (SW); a modulating section for modulating the signals of the different sections into a required frequency; a summing and amplifying section (19) for summing up the output of the modulating section and an audio output of an audio signal generating section; a demodulating means for demodulating the signals of the different sections; a displaying section for displaying the sensed data by carrying out a switching in accordance with the signals of the different sections; and an audio signal transmitting means for outputting audio message in correspondence with the signals of the different sections.

Description

Signal Multiplexing Transmitter in Automation System

1 is a block diagram according to the present invention.

2 is a detailed circuit diagram according to the present invention.

* Explanation of symbols for main parts of the drawings

10: microcomputer 11: voice data ROM

12: integrated voice circuit 13,29: amplifier

14: low pass filter 15-18: 1-4 modulation circuit

19: Summing amplifier 20-24: 1-5 demodulation circuit

25-28: 1-4th detection display driving circuit Q1-Q4: transistor

R1-R9: Resistance SW: Member Switch

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a home automation system suitable for a close home type for several generations. In particular, the present invention relates to a signal multiplexing transmission apparatus for intensively detecting an abnormal state of a house in a single place.

In general, the conventional home automation system was to be automatically notified to the guard room when an abnormal condition occurs in the house. At this time, since the sensing signal lines by the sensors go to the guard room, if there are five sensors in the house, six signal lines including the ground go to the guard room. Therefore, there are many difficult problems when constructing home automation systems or repairing signal lines in houses where several generations are in close proximity, such as apartments.

Therefore, the object of the present invention is to detect the abnormal state of the house with various sensors in the home automation system and frequency-multiplexes these sensor signals and transmits them on one signal line so that the receiving unit demodulates each sensor signal again so that the state of the house is abnormal. In providing a device for detecting the.

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

1 is a block diagram according to the present invention, by detecting an abnormal state signal input from the fire detector (1), the gas detector (2), the crime prevention detector (3), the member switch (SW) of the house and the detected signal A microcomputer 10 for generating a voice message and a voltage generation control signal corresponding to the voice signal; a voice signal generating means for receiving a voice message generated by the microcomputer 10 and synthesizing the voice signal to generate a corresponding voice signal; Voltage generation means composed of resistors R2-R9 transistors Q1-Q4 for switching to generate voltages corresponding to the voltage generation control signals generated by Modulation means consisting of the first to four modulation circuits (15-18) for modulating to convert to a frequency, and after amplifying the frequency modulated by the modulation means and the voice signal generated by the voice signal generating means, respectively And a first to fifth demodulation circuit 20 for demodulating the output signal of the summing amplifier 19 and the output signal of the summing amplifier 19 to a corresponding detection signal, respectively, and outputting the first to fifth demodulated signals. A first to fourth detection display driving circuit (25) for half-wave rectifying and demodulating the signal demodulated by the demodulation means, and then switching according to the detection of the corresponding detection signal voltage to display an abnormal state detection display. A display means consisting of -28), and an audio signal transmitting means comprising an amplifier 29 and a speaker S for receiving the voice signal demodulated by the demodulating means and transmitting the voice signal.

The voice signal generating means of the configuration comprises a voice data ROM 11 that resists voice data, and a voice synthesis integrated circuit configured to receive a voice message of the microcomputer 10 and voice synthesize the voice data of the voice data ROM 11 ( 12), an amplifier 13 for amplifying a signal synthesized by the speech synthesis integrated circuit 12, and a low pass filter for inputting the signal amplified by the amplifier 13 and outputting a low pass filtered speech signal ( 14).

2 is a detailed circuit diagram according to the present invention, wherein the configuration of the first modulation circuit 15 is the same as that of the second to third modulation circuits 16-18, and the configuration of the first demodulation circuit 20 is shown in FIG. The configuration is the same as the configuration of the second to fifth demodulation circuits 21 to 24, and the configuration of the first sensing display driving circuit 25 is the same as that of the second to fourth sensing display driving circuits 26 to 28. (15), only the specific circuit diagrams of the first demodulation circuit 20 and the first sense display driver circuit 25 are shown.

The first modulation circuit 15 is composed of a variable resistor (VR1-VR2), a resistor (R10, R11) voltage adjustment buffer integrated circuit (A1), capacitors (C1-C4), voltage-controlled oscillation circuit (A2) It consists of a first frequency converter 15a for inputting the detection signal voltage and converting it to the frequency (30KHZ) assigned to the fire detection signal, resistors R12-R15, and capacitors C5-C7 and the converter A3. A first sine wave converter 15b converts the frequency 30KHZ converted by the first frequency converter 15a into a sine wave, and the second modulator 16 includes a variable resistor VR1-VR2, Resistor (R10, R11) voltage control buffer integrated circuit (A1), capacitors (C1-C4) voltage control oscillation circuit (A2) consists of a gas detection signal voltage is inputted to the frequency (40KHZ) assigned to the gas detection signal 40KHZ, which is composed of a second frequency converter 16a, resistors R12-R15, and capacitors C5-C7 and a converter A3 converted by the second frequency converter 16a. ) Is converted into a sine wave, and the second sine wave converting unit 16b converts the variable resistors VR1-VR2, resistors R10 and R11 into a buffer integrated circuit A1 and capacitors. (C1-C4) a third frequency converter 17a, comprising a voltage controlled oscillation circuit A2, for inputting an anti-theft detection signal voltage and converting it into a frequency (50 KHZ) assigned to the anti-theft detection signal, and a resistor (R12-R15); And a third sine wave converter 17b which is configured of a capacitor C5-C7 sine converter A3 and converts the frequency 50KHZ converted by the third frequency converter 17a into a sine wave. The four modulation circuit 18 is composed of a variable resistor (VR1-VR2), a resistor (R10, R11) voltage adjusting buffer integrated circuit (A1), capacitors (C1-C4) voltage control oscillation circuit (A2), the member detection signal voltage Is composed of a fourth frequency converter 18a for converting the signal to a frequency (60KHZ) assigned to the member detection signal, a resistor (R12-R15), and a capacitor (C5-C7) sign converter (A3). Made a frequency (60KHZ) converted from the group the fourth frequency converting unit (18a) to the fourth sine wave conversion unit (18b) for converting a sine wave.

In addition, the first demodulation circuit 20 is composed of resistors R20 to R25, capacitors C8 and C9, and amplifier A4 to input a sense signal synthesized by the summing amplifier 19 to output high pass filtering. A first high pass filter 20a and a first low pass filter 20b for outputting a fire detection signal by low-pass filtering the detection signal filtered by the high pass filter in the first high pass filter 20a, The inquiry path 22 is composed of resistors R20 to R25, capacitors C8 and C9, and amplifiers A4, and inputs a detection signal synthesized by the summing amplifier 19 to output a high pass filtering. 21a) and a second low pass filter 21b for low-pass filtering the detection signal filtered by the second high pass filter 21a to output a gas detection signal, wherein the third demodulation circuit 22 is used. Is composed of resistors (R20-R25), capacitors (C8, C9), and amplifiers (A4) and inputs the sensed signal synthesized by the summing amplifier (19). A third high pass filter 22a for filtering and a third low pass filter 22b for low frequency filtering the detection signal filtered by the high pass filter 22a and outputting a security detection signal; The fourth demodulation circuit 23 is composed of resistors R20 to R25, capacitors C8 and C9, and amplifier A4 to input a synthesized detection signal and output a high pass filter to the fourth high pass filter 23a. And a fourth low pass filter 23b for low-pass filtering the detection signal filtered by the fourth high pass filter 23a to output a corresponding voice signal, wherein the fifth demodulation circuit 24 includes a resistor. A fifth high pass filter 24a configured to input a detection signal synthesized by the summing amplifier 19 to the high pass filter by R20 to R25, capacitors C8 and C9, and amplifier A4, and the fifth A fifth high pass for low pass filtering the detection signal filtered by the high pass filter 24a to output a corresponding voice signal; Comprises a foundation (24b).

In addition, the first detection display driving circuit 25 is composed of a diode (D1) and a capacitor (C8), and after inputting the demodulated output of the fire detection signal from the first demodulation circuit 20 to rectify the half-wave rectification to smooth A fire detection state is displayed by inputting a fire detection signal rectified and smoothed by the first rectifier 25a, which is composed of a first rectifier 25a, resistors R31-R32, a voltage comparator A7, and a transistor Q5. Fire detection to display a fire detection state that is configured to input the fire detection display control signal output from the first driver (25b) consisting of a first driver (25b), a resistor (R33), a light emitting diode (LED1) for controlling to The second sensing display driver circuit 26 is composed of a display unit 25c, and is composed of a diode D1 and a capacitor C8 to input a gas sensing signal demodulated and output from the second demodulation circuit 21. Second rectifier 26a smoothing after half-wave rectification, resistors R31-R32, voltage comparators A7, and transistors A second driver 26b configured to control the display of a fire detection state by inputting a gas detection signal rectified and smoothed by the second rectifier 26a, and including a resistor Q5, a resistor R33, and a light emitting diode LED1. And a gas detection indicator 26c for inputting a gas detection display control signal output from the first driver 26b to display a gas detection state. The first detection display driving circuit 27 may include a diode ( D1), the third rectifier 27a, resistors R31-R32, which is composed of a capacitor C8 and smoothes the half-wave rectified after inputting the anti-theft detection signal demodulated by the third demodulation circuit 22; A third driving unit 27b configured to include a voltage comparator A7 and a transistor Q5 to control the display of a security detection state by inputting a security detection signal rectified and smoothed by the third rectifier 27a, and a resistor R33. , Comprising a light emitting diode (LED1), the sense of security output from the third driver (27b) A security detection indicator 27 is configured to input an indicator control signal to display a security detection state. The fourth detection display driving circuit 28 is composed of a diode D1 and a capacitor C8. A fourth rectifier 28a, which is smoothed after inputting the demodulation-output member detection signal from the search path 23 and smoothed, is composed of a resistor R31-R32, a voltage comparator A7, and a transistor Q5. The fourth driver 28b includes a fourth driver 28b for controlling the display of the member detection state by inputting the rectified smoothed member detection signal from the fourth rectifier 28a, a resistor R33, and a light emitting diode LED1. And a member detection display 28c for inputting the member detection display control signal outputted from the control panel.

Based on the above-described configuration, the present invention will be described in detail with reference to FIGS. 1-2.

First, signals detected by various detectors such as a fire detector (1), a gas detector (2), a crime prevention detector (3), or a member switch (SW) connected through a resistor (R1) connected to a power supply (+ 5V). When the microcomputer 10 is applied to the microcomputer 10, the microcomputer 10 detects an abnormal state and a voice message corresponding to the abnormal state is generated. Here, the member switch SW is a switch for selecting an operation mode of the detector so that the user operates various sensors when the user goes out. The voice active integrated circuit 12 which inputs the voice message of the microcomputer 10 reads the voice data from the voice data ROM 11 and synthesizes the voice data to output a voice signal. The speech signal output from the speech synthesis integrated circuit 12 is amplified by the amplifier 13. The speech synthesis signal amplified by the amplifier 13 is filtered through a low pass filter 14 at a cutoff frequency 10 KHZ sufficient to be transmitted without signal distortion, and then output to the audio line 4. . (Here, the cutoff frequency 10KHZ is an example, and may be changed.)

On the other hand, the microcomputer 10 which inputs the signal detected from the fire detector 1, the gas detector 2, the crime prevention detector 3, and the member switch SW generates a voltage generation control signal corresponding to the detection signal. do. The voltage generation control signal generated by the microcomputer 10 is applied through each of the bias resistors R2-R5 to drive the transistors Q1-Q4 to make a voltage corresponding to the detection signal. Resistors R6-R9 are connected to the collectors of the transistors Q1-Q4 between power supply terminals (+ 12V, + 10V, + 8V, + 6V), respectively.

Therefore, the transistors Q1-Q4 are generated and output to the collectors of the transistors Q1-Q4 according to the voltage generation control signal of the microcomputer 10, respectively. The voltages generated by the transistors Q1-Q4 are input to the first to fourth modulation circuits 15-18, respectively, and modulated to convert to a frequency corresponding to the corresponding voltage. The fire signal voltage is 30KHZ and the gas signal voltage. 40KHZ, security signal voltage 50KHZ member signal voltage is converted to a frequency of 60KHZ (where the conversion frequency 30KHZ, 40KHZ, 50KHZ, 60KHZ is set arbitrarily, for example, the frequency can be changed) each of the sensed signals modulated above The frequency and the voice signal through the audio line 4 are input to the summing amplifier 19, summing and amplified and output through the synthesized signal line 5. Therefore, it is authorized to the guard room through one line. The signals through the composite signal lines 5 are input to the first to fifth demodulation circuits 20 to 24 installed in the guard room so as to restore the detected signal frequencies. In this case, the first to fourth demodulation circuits 20 to 23 demodulate and output the signals amplified and output from the summing amplifier 19, respectively. The corresponding detection signals (ie fire detection signals, gas detection signals, and crime detection signals) are output. , Only the member detection signal) is input to the first to fourth detection display driving circuits 25-28, respectively.

Accordingly, the first to fourth detection display driving circuits 25 to 28 rectify the input signals by half-wave rectifying and smooth them, and then switch them according to the detection of the corresponding detection signal voltage to detect the fire detection indicator 25c and the gas detection indicator 26c. ), The security detection indicator (27c), the member detection indicator (28c) is driven to display the corresponding abnormal state in the guard room.

The fifth demodulation circuit 24 detects an audio signal, which is a demodulated signal by demodulating by band pass filtering, and outputs it to the amplifier 29. As a result, the amplifier 29 amplifies the demodulated voice signal and outputs it to the speaker S so that the voice signal corresponding to the abnormal state signal is heard in the guard room.

Specific operations of the first-fourth modulator circuits 15-18, the first- fifth demodulator circuits 20-24, and the first-fourth sense display driver circuits 25-28 are shown in FIG. In the following description, the configurations of the first to fourth modulation circuits 15-18 for the fire detection, the gas detection, the crime prevention detection, and the member detection are the same, and the respective configurations of the first to five demodulation circuits 20 to 24 are provided. Since the configuration of the first to fourth detection display driving circuits 25 to 28 is the same as that of FIG.

First, the fire detection voltage output from the collector terminal of the transistor Q1 is input through the resistor R10 of the first modulation circuit 15, and the voltage of the variable resistors VR1 and VR2 in the voltage adjusting buffer integrated circuit A1. After stabilization by adjustment, it is output to the voltage controlled oscillation circuit (A2). In the voltage controlled oscillator circuit A2, since the voice band has a 10KHZ band, the time constant is adjusted by the resistor R11 and the capacitor C1, and in the case of a fire signal voltage, frequency conversion is performed to 30KHZ. In addition, the second, third, and fourth modulation circuits 16, 17, and 18 respectively convert the gas signal voltage to 40KHZ, the crime signal voltage to 50KHZ, and the absence signal voltage to 60KHZ in the same manner as described above. The changed frequencies allocate frequency bands within a range that does not interfere with each other, and the capacitors C2 and C3 connected to the power supply (+ 12V) are for power supply noise removal. The modulated frequency of the voltage controlled oscillator circuit A2 is modulated into a sinusoidal signal in the sine converter A3 through the resistor R12 after the noise is removed through the capacitor C4. Capacitors C5 and C6 and resistors R13 and R14 connected to the input and output terminals of the sine converter A3 are not shown in the general circuit configuration.

The fire detection frequency converted into a sine wave in the sine converter A3 is applied to the summing amplifier 19 through the capacitor C7 and the resistor R15. The signal transmitted through the summing amplifier 19 is applied to the first to fifth demodulation circuits 20 to 24 in order to demodulate the detected signal again, and the fire detection frequency is applied to the first demodulation circuit 20. do. The fire detection frequency applied to the first demodulation circuit 20 is a high pass filtering output from a high pass filter including capacitors C8 and C9 and resistors R20 to R25 and amplifier A4. The high pass filtered fire detection frequency is low pass filtered at a low pass filter consisting of a resistor R26, a capacitor C10 and an amplifier A5. The low-pass filtered fire detection frequency is again low-pass filtered and demodulated by a low pass filter consisting of resistors R27-R30, capacitors C11-C12, and amplifier A6. The demodulated fire detection frequency is applied to the first detection display driving circuit 25. The demodulation signal input to the sensing display driving circuit 25 is half-wave rectified through the diode D1 and smoothed through the capacitor C8. The smoothed signal is output in comparison with the reference voltage Vf in the voltage comparator A7 to obtain a complete DC voltage. The fire detection signal voltage compared and output from the comparator A7 is applied to the base of the transistor Q5 through the resistor R32.

As a result, the transistor Q5 is turned on so that the power supply Vcc emits the sensing light-emitting first light emitting diode LED1 through the resistor R33 to indicate a fire state.

Therefore, the guard room can detect the fire state in the house by the display of the first light emitting diode LED1. At the same time, when the fire detector 1 detects a fire and sends it to the microcomputer 10, the microcomputer 10 generates a voice message and applies it to the voice synthesis integrated circuit 12. The voice synthesis integrated circuit 12 receiving the voice message from the microcomputer 10 outputs the synthesized voice data of the voice data ROM 11. The fire detection voice signal output from the voice synthesis integrated circuit 12 is applied to the summing amplifier 19 through the amplifier 13 and the low pass filter 14.

As a result, the summing amplifier 19 is amplified and output by synthesizing with various corresponding frequencies (for example, fire detection frequency, gas detection frequency, crime prevention detection frequency, absence detection frequency, etc.). The fire detection voice signal synthesized and amplified by the summing amplifier 19 is applied to the fifth demodulation circuit 24 to demodulate and demodulate the fifth demodulation signal in the same manner as the operation of the first demodulation circuit 20 described above. The fire detection voice signal transmits the fire detection state as voice through the amplifier 29 and the speaker S.

Therefore, in the guard room it is possible to detect the fire state of the house by detecting the light emitting display of the first light emitting diode (LED1), the fire detection indicator (25c) and the fire occurrence voice signal transmitted to the speaker (S). In this way, the gas, crime prevention, and absence can be detected in the same way as the fire detection operation.

In another application using the present invention, if the summed signal output from the summing amplifier 19 is connected to a telephone line through a tele control unit of a conventional home automation system, the state of the house is detected through a telephone. can do. At this time, the voice signal band should be set to 1KHZ-2KHZ and each detection signal band should be set to the band after subtracting 1K-2KHZ from the remaining bands 300-340KHZ.

As described above, in the home automation system, it is possible to detect the abnormal condition of the house with various sensors, and to transmit these sensor signals by multiplexing them on one signal line, which is convenient for the construction or repair of the home automation system in the apartment. There is an advantage that the quality is improved.

Claims (4)

In the signal multiplexing transmission device in a home automation system, an abnormal state signal is inputted from a fire indicator (1), a gas detector (2), a crime prevention detector (3), and a member switch (SW) to detect a fire detection signal and a gas detection. The microcomputer 10 generates a voice message corresponding to the signal crime detection signal, the absence detection signal, and a voltage generation control signal, and receives a voice message generated from the microcomputer 10 to synthesize a voice to detect a fire signal, a gas detection signal, A voice signal generating means for generating a voice signal corresponding to a crime prevention detection signal and a member detection signal and a voltage generation control signal generated by the microcomputer 10 generate a fire detection voltage, a gas detection voltage, and a member detection voltage, respectively. The voltage generating means and the fire detecting voltage, the gas detecting voltage, the crime prevention voltage, and the member detecting voltage generated by the voltage generating means, respectively. A synthesized signal of the summing amplifier 19 and a summing amplifier 19 for synthesizing and then amplifying and outputting the modulating means, each frequency converted by the modulating means and the voice signal generated by the voice signal generating means, and The demodulation means for demodulating the fire detection signal, the gas detection signal, the crime prevention detection signal, and the absence detection signal, respectively, and half-rectified the signals demodulated by the demodulation means and then smoothed the fire detection signal, the gas detection signal, and the crime detection signal. And display means for switching each of the voltages corresponding to the member detection signals to display respective detection states, and inputting a demodulated signal of the demodulation means to detect a fire detection signal, a gas detection signal, a crime detection signal, and a member detection signal. A signal multiplexing transmission apparatus for an automation system, characterized in that it comprises a voice signal transmitting means for transmitting a voice signal for. 2. The apparatus according to claim 1, wherein the modulation means allocates frequency bands and converts frequencies within a range that does not interfere with each other according to the detected signal voltage, and sinusoidal conversion converts the output of the frequency converting means into sine waves, respectively. A signal multiplexing transmission device for a home automation system, characterized by comprising means. The apparatus of claim 1, wherein the demodulation means comprises a band pass filter comprising a high pass filter and a low pass filter to demodulate the detected signal frequency. The apparatus of claim 1, wherein the display means displays fire, gas, crime prevention, and absence states, respectively.

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