KR200164546Y1 - System for emergency broadcasting auto receiver and siren alarm auto information - Google Patents

Abstract

The present invention relates to an emergency broadcast automatic reception and a siren alarm automatic alarm system using a radio receiver.

The present invention provides a microprocessor for controlling a series of operations by selecting a key input switch, and thus driving a lamp and generating a data (digital code method), and an FSK for generating a data signal by a control signal from the microprocessor. A PCM generator first oscillator, a second oscillator generating a predetermined frequency for the FSK or PCM generator to operate, a reset circuit for initializing the operation of the microprocessor upon power-up, and frequencies other than the FSK or PCM signal band Band pass filter to block band, buffer amplifier to amplify fine FSK or PCM signal to power level required by line amplifier, auxiliary amplifier for auxiliary output circuit, and modulation input of AM / FM broadcasting equipment The technical problem is solved by constructing a line amplifier to amplify even the power required for the system.

Description

Emergency Broadcasting Auto Receiver and Siren Alarm Auto Information}

The present invention relates to an emergency broadcast automatic reception and a siren alarm automatic alarm system using a radio receiver.

In general, the radio receiver for broadcasting can recognize the alarm condition only when the power is on. However, it is impossible to listen to the broadcast when the power is off. There is a risk of accidental accidents or casualties as the situation becomes unrecognizable.

The conventionally disclosed 'broadcast receiver having a civil defense automatic alerting device' (notification number: 86-2032), when the broadcast station transmits a separate detection signal through the alarm broadcast path, the receiver receives the detection signal and the voice of the receiver The emergency alarm broadcast is to be listened to by the device operating the output unit. However, since the broadcasting station must transmit a detection signal having a different frequency band from the general broadcast signal, a separate facility is required. There is a problem in radio wave management to exclude the interference of the radio wave, and there is an uneconomical problem due to an installation problem on the receiver side that requires improvement of an existing receiver circuit in order to receive the detection signal and drive the receiver.

The present invention is proposed to solve such a conventional problem. Especially, in a local disaster situation, a civil defense control station controls or directs a local broadcasting station so that a disaster-prevention local person can automatically receive an alarm broadcast or a siren alarm in advance. The purpose is to provide.

The present invention receives the control code transmitted from the broadcasting station through a separate emergency broadcast dedicated radio receiving channel to automatically turn on the emergency broadcast reception. The technical challenge is to allow the siren alarm to be automatically triggered while controlling it off.

The present invention for achieving the above object is a microprocessor for controlling a series of operations by the selection of the key input switch, and thus driving the lamp and data (digital code method) signal, and the data by the control signal from the microprocessor A first oscillator for generating a signal, a first oscillator for generating a signal, a second oscillator for generating a predetermined frequency for the FSK or PCM generator to operate, a reset circuit for initializing the operation of the microprocessor when the power is turned on, and an FSK Or a band pass filter to block frequencies other than the PCM signal band, buffer amplifiers to amplify fine FSK or PCM signals to the power levels required by the line amplifiers, auxiliary amplifiers for auxiliary output circuits, and AM / It is composed of a line amplifier to amplify the power required for the modulation input of FM broadcasting transmission equipment. Technically solves the problem.

1 is a block diagram of the entire system according to the present invention

2 is a block diagram of an encoder device according to the present invention.

3 is a block diagram of a decoder device related to the present invention.

4 is a control code transmission signal timing chart according to the present invention.

≪ Explanation of symbols for the main parts of the drawings>

1,21 microprocessor (MPU) 2: FSK or PCM signal generator

3,4,5,24,25: oscillator 4,26: reset circuit

6,28: Bandpass Filter (BPF) 7,29,33: Buffer Amplifier

8: AUX amplifier 9: Line amplifier

10,34: AUX output terminal 11: Line output signal terminal

22 decoder 23 siren alarm signal generator

27: DIP switch 30: decoding receiver

31 normal AM / FM receiver 32 switching selector switch

35 Monitor amplifier LP _{1 to} LP _n Display lamp K _{1 to} K _n Key input switch

1 is a block diagram of an entire system according to the present invention, wherein a transmitter includes an encoder for generating data necessary for automatic reception control, and an AM / AM for receiving the encoder output signal and transmitting a corresponding alarm signal to a receiver decoder. It consists of FM broadcast transmission equipment. In addition, the receiver is composed of a decoder for analyzing the reception control code of the signal transmitted from the transmitter to perform the alarm broadcast through the existing AM / FM receiver.

FIG. 2 is a block diagram of an encoder device according to the present invention, and includes a microprocessor (1) for controlling a series of key input switches (K ₁ -Kn) and corresponding lamp driving and data (digital code type) signal generation. ), A predetermined signal for operating the FSK or PCM generator 2 and the first oscillator 3 and the FSK or PCM generator 2 for generating a data signal by the control signal from the microprocessor 1. A second oscillator 5 generating a frequency, a reset circuit 4 for initializing the operation of the microprocessor 1 when the power is turned on, and a band pass filter for blocking frequency bands except for the FSK or PCM signal bands (6), a buffer amplifier (7) for amplifying fine FSK or PCM signals to the power level required by the line amplifier, an auxiliary amplifier (8) for auxiliary output circuits, and modulation of AM / FM broadcast transmitting equipment As input required It consists of a line amplifier 9 for amplifying up to power.

3 is a block diagram of a decoder device according to the present invention, and includes a microprocessor 21 for performing a series of alarm operations by a region selection signal, a switch input, and an FSK or PCM received signal, and a FSK or PCM signal. FSK or PCM decoder 22 for receiving and converting data into a digital signal, siren alarm signal generator 23 for generating a siren alarm sound by the received control signal (alarm signal), and FSK or PCM signal conversion. A third oscillator 24 for generating a predetermined frequency, a reset circuit 26 for the microprocessor 21 to initialize the operation, a dip switch 27 for setting a unique code of the decoder, and an FSK Alternatively, the band pass filter 28 for removing the frequency band excluding the PCM signal band, and the fine input signal from the decoding receiver 30 to the power level required for the band pass filter 28. A buffer amplifier 29 for widening, a decoding receiver 30 for receiving as a decoded signal, an AM / FM receiver 31 for receiving a normal AM / FM signal, and a received FSK or PCM control signal. A switching select switch 32 switched to the decoding receiver 30 side when an alarm sound is generated, a buffer amplifier 33 for amplifying to a power level required for the monitor auxiliary output terminal 34 and the monitor imp 35, and It consists of a monitor amplifier 35 which amplifies to the power level required for monitoring the alarm broadcast.

The emergency broadcast automatic reception and siren alarm automatic fault control operation according to the present invention related to the encoder and decoder device configured as described above will be described. In the encoding process according to the present invention, is the state selected after determining the input state of the key input switch (K _{1 to} K _n ) (region 1 to region 6, boundary, air strike, disaster, etc.) by the microprocessor (1). If it is determined that the region is selected, turn on the lamp and then operate the FSK or PCM generator (2) to generate and terminate the FSK or PCM signal twice in succession. If it is in the determined state, it is determined whether the region is selected. If the region is selected, FSK or PCM signals are generated twice in succession. If not, the process is terminated immediately.

In the decoding process according to the present invention, after setting the unique code as the dip switch 27, the microprocessor 21 determines the FSK or PCM signal input state, and if the signal input state determines whether the control code is received twice. If the control code is not received twice, it is determined whether it is a reception state within a prescribed time. If the control code is not received within a specified time, it is treated as an error state. If it is determined and matched, the relay (RY) is turned on to operate the external amplifier, so the emergency broadcast reception for each area is turned on and off, and then the reception code and the entire area are set. If it detects whether the external amplifier is on, it controls the siren alarm sound on and off.

Referring to Figure 4 the operation and effect of the present invention made as described above are as follows.

First, the encoder device is a device that generates data required for automatic reception control. When the key input switches K _{1 to} K _n are selected to select areas 1 to 6, boundaries, air raids, and disasters, the corresponding settings The control code is input to the microprocessor 1.

Such a setting control code is regularly output for each function as shown in FIG. 4 by the control operation of the microprocessor 1. At this time, in order to prevent the error, the control code is transmitted two times continuously. That is, the microprocessor (1) In the key input switch (K ₁ ~K _n) key input switch to determine the input state (K ₁ ~K _n) the area of the switch when the input state to determine the state is the area switch input If the switch is in the input state, turn on the corresponding lamp (LP _{1 to} LP _n ). If it is not the state switch input state, it is determined whether the alarm switch is in the on state and if it is not on, it is terminated immediately. If the alarm switch is in the state, it is determined whether the area switch is in the on state again. . If the corresponding region switch is in the ON state, the FSK or PCM generator 2 is operated in the subsequent process of turning on the corresponding lamps LP _{1 to} LP _n to terminate the output after the FSK or PCM signal is output twice. The output of the FSK or PCM generator (2) is cut through the band pass filter (6), except for the FSK or PCM signal band, and then through the buffer amplifier (7) and the variable resistors (VR ₁ , VR ₂ ), respectively. After amplifying through the amplifier 8 and the line amplifier 9, it is applied to the auxiliary output terminal 10 and the input terminal 11 of the AM / FM broadcast transmission equipment.

On the other hand, the decoder device receives the signal transmitted through the antenna of the AM / FM broadcast transmission equipment in the encoder device to the decoding receiver 30 and then through the buffer amplifier 29 and the band pass filter 28 through the FSK or PCM decoder ( 22) receives the FSK or PCM signal, converts the data into a digital signal and inputs it to the microprocessor 21. Accordingly, the microprocessor 21 analyzes the received control code, and selects the switching which has been switched to the normal AM / FM receiver 31 when it matches the automatic reception code of the decoder device itself among 'full broadcast' or 'local broadcast'. The switch 32 is automatically switched to the decoding receiver 30 side. Accordingly, since the microprocessor 21 operates the relay RY to turn on its contact point, the microprocessor 21 operates the civil defense amplifier connected to the outside to always alert the user even when receiving a different broadcast (FM or other channel broadcast) or off. Can be received. Subsequently, when the siren control code is received, the siren alarm sound is generated only when the decoder device is in the automatic receiving state. Even if the siren alarm sound of the encoder device (broadcasting station) is stopped, the decoder device generates the siren alarm sound until the prescribed time. . In other words, when the dip switch 27 sets a unique code that is an automatic reception code for local broadcasting, six zones up to region numbers 1 to 6 are divided and set. The microprocessor 21 determines the unique code corresponding selection signal selected by the dip switch 27 to perform a series of alarm operations by the region selection signal, the switch input, and the FSK or PCM reception signal. That is, after setting the unique code as the dip switch 27, the microprocessor 21 determines the FSK or PCM signal input state, and if it is a signal input state, determines whether the code signal has been received twice. If it is not received twice, it detects whether it is within the specified time. If it is not within the specified time, it processes as an error and terminates. If it is received twice, it detects whether the received code matches the unique setup code, and if it matches, the relay (RY) contact is controlled immediately. If the received code and the unique setup code do not match, it is determined whether the received code matches the entire area code. If the matched code is identical, the process of controlling the relay (RY) contact on and off is performed as described above. If it does not match the entire area code, it is determined whether it is an alarm code input state and terminates immediately if it is not an alarm code input state.If it is an alarm code input state, it detects whether the external amplifier is on and if it is on, it terminates after siren alarm sound. In the off state, the system stops without a siren alarm sound.

The present invention improves the reliability of the entire system by minimizing malfunctions that may be caused by noise and crosstalk by combining multiple data signals combining two or more sounds using FSK or PCM. By dividing the receiving code, it is possible to subdivide into multiple alarm zones even in the same frequency band, so that it is possible to proactively cope with different regional characteristics.

Claims (3)

The transmitter comprises an encoder for generating data necessary for automatic reception control, and an AM / FM broadcast transmitting equipment that receives the encoder output signal and sends the corresponding alarm signal to a decoder on the receiving side, and the receiver receives the signal transmitted from the transmitter. An emergency broadcast auto-receipt and siren alarm auto-detection system, comprising: a decoder configured to analyze a reception control code to broadcast an alarm through an existing AM / FM receiver. The encoder according to claim 1, wherein the encoder comprises a microprocessor (1) for controlling a series of key input switches (K ₁ -Kn), and thus driving the lamp and generating a data signal, and a control signal from the microprocessor (1). The FSK or PCM generator 2 and the first oscillator 3 generating the data signal by means of the second oscillator 5 generating the predetermined frequency for the FSK or PCM generator 2 to operate, and the power supply A reset circuit 4 for initializing the operation of the microprocessor 1, a band pass filter 6 for blocking a frequency band except for the FSK or PCM signal band, and a fine FSK or PCM signal from the line amplifier. A buffer amplifier 7 for amplifying to the required power level, an auxiliary amplifier 8 for the auxiliary output circuit, and a line amplifier for amplifying up to the power required for the modulation input of AM / FM broadcasting transmission equipment. Characterized by Emergency broadcast auto receiving and siren alarm auto alarm system. The decoder according to claim 1, wherein the decoder receives a microprocessor 21 for performing a series of alarm operations by means of a region selection signal, a switch input, and an FSK or PCM received signal, and converts the data into a digital signal by receiving the FSK or PCM signal. The FSK or PCM decoder 22, the siren alarm signal generator 23 for generating the siren alarm sound by the received control signal (alarm signal), and the third generating a predetermined frequency for FSK or PCM signal conversion. The oscillator 24, the reset circuit 26 for the microprocessor 21 to initialize the operation, the dip switch 27 for setting the unique code of the decoder, and the frequency band excluding the FSK or PCM signal band A band pass filter 28 for removal, a buffer amplifier 29 for amplifying the fine input signal from the decoding receiver 30 to the power level required for the band pass filter 28, and Decoding receiver 30 for receiving by call, AM / FM receiver 31 for receiving normal AM / FM signal, and switching which is switched to decoding receiver 30 when alarm sound is generated by the received FSK or PCM control signal Amplification to the selector switch 32, a buffer amplifier 33 to amplify to the power level required for the monitor auxiliary output terminal 34 and the monitor imp 35, and a power level required to monitor the received alarm broadcast Emergency broadcast automatic reception and siren alarm automatic warning system, characterized in that consisting of a monitor amplifier (35).