KR930022742A - Radio Frequency Signal Repeater and Control Method in Home Automation System - Google Patents

Abstract

In the home automation system that sends and receives an alarm for an emergency situation in the subscriber's premises by a radio frequency signal and receives an transmitted radio frequency signal, it becomes impossible to receive it when it is out of the effective communication distance between the transceivers. It is a technique to improve the occurrence of communication errors due to interference caused by noise.

To this end, at least one radio frequency signal relay device that receives, demodulates and decodes a radio frequency signal transmitted from a radio frequency signal transmitter and retransmits the same signal as the received signal when the decoded data is identical to a preset alarm data. Install between the transceivers.

Therefore, the effective communication distance that can transmit the signal is extended, and the radio frequency signal is retransmitted closer to the receiver, thereby reducing the communication error caused by noise on the transmission / reception path, thereby enabling reliable signal transmission.

Description

Radio Frequency Signal Repeater and Control Method in Home Automation Systems

Since this is an open matter, no full text was included.

1 is a block diagram of a general wireless transmission and reception system.

2 is a system configuration diagram of a wireless transmission and reception system according to the present invention.

3 is a block diagram of a radio frequency signal relay device according to the present invention.

4a and 4b are specific circuit diagrams of one embodiment of FIG. 3 in accordance with the present invention.

5 is a flowchart of a relay control function according to the present invention.

Claims (8)

A radio frequency signal transmitter that encodes, modulates, and transmits alarm data corresponding to an alarm for an emergency situation in a subscriber's home as a radio frequency signal, and an alarm when the transmitted radio frequency signal is received, demodulated, and decoded. A home automation system having at least one radio frequency signal receiver for generating a signal, wherein the received, demodulated, decoded, and decoded radio frequency signals transmitted from the radio frequency signal transmitter are equal to preset alarm data. And at least one radio frequency signal repeater for retransmitting the same signal as the received signal. A home automation system comprising a radio frequency signal transmitter for transmitting an alarm for an emergency situation in a subscriber's home by a radio frequency signal and a radio frequency signal receiver for receiving the transmitted radio frequency signal and generating an alarm. Receiving means for receiving and demodulating a radio frequency signal transmitted from a frequency signal transmitter; and controlling means for decoding the demodulated signal and comparing the decoded data with preset alarm data and outputting the preset alarm data if the same is equal. And transmitting means for encoding and then modulating the alarm data output from the control means and transmitting the same as the received signal. 3. The radio frequency signal relay device according to claim 2, wherein the receiving means includes signal stabilizing means for stabilizing the demodulated signal by a preset reference voltage and hysteresis comparison. 4. The radio frequency signal relay apparatus according to claim 2 or 3, wherein the receiving means includes noise removing means for removing impulsive noise included in the demodulated signal. The radio frequency signal relay apparatus according to claim 2, wherein the control means outputs the preset alarm data and inputs an output signal of the receiving means after a predetermined time delay. 3. The radio frequency signal relay device according to claim 2, wherein said transmitting means is enabled by the control of said control means and performs a transmitting operation. A home automation system comprising a radio frequency signal transmitter for transmitting an alarm for an emergency occurring in a subscriber's home by a radio frequency signal and a radio frequency signal receiver for receiving the transmitted radio frequency signal and generating an alarm. Receiving means for receiving and demodulating a radio frequency signal transmitted from a frequency signal transmitter, system code setting means for generating a preset system code corresponding to the type of alarm, and decoding and decoding the decoded signal. A control means for outputting the preset alarm data and inputting an output signal of the receiving means after a delay for a predetermined time when the same is compared with the set alarm data of the system code generating means, and operating by the control of the control means. To encode alarm data output from the control means. Hanhu radio frequency signal repeater, characterized in that for configuring the sending means for sending a modulated signal, such as the received signal and a state display means for displaying whether or not the transmission state under the control of the control means. Receiving means for receiving and demodulating a radio frequency signal transmitted from a radio frequency signal transmitter for transmitting an alarm for an emergency situation in a subscriber's home by a radio frequency signal; And a control means for controlling the transmitting means by an output of the receiving means, and a system code setting means for generating a system code preset according to the type of alarm. Reading and storing the system code after disabling the transmitting means, detecting the presence or absence of receiving data from the receiving means, decoding received data when receiving data is input during the checking process, and Enable the transmitting means only if it is the same as the system code. Outputting an existing system code to the transmitting means to transmit, waiting for a predetermined time after performing the transmitting process, and performing the checking process again after performing the waiting process. Control method of radio frequency signal repeater. ※ Note: The disclosure is based on the initial application.