KR19990035207A - Power control method of radio broadcasting receiving system - Google Patents

Abstract

The power control method of the radio broadcasting reception system is to automatically turn off various lamps mounted on the radio broadcasting receiving system when the radio broadcasting is completed, and receives a radio broadcasting signal transmitted from the radio broadcasting station through an antenna. After a predetermined level of amplification, the amplified radio broadcast signal is converted into a digital signal to detect a DC level of the converted radio broadcast signal, and the detected DC level is compared with a preset reference DC level. If it is smaller than the standard DC level value, it is determined that radio broadcasting is completed and power consumption can be reduced to a minimum by turning off various lamps installed in the radio broadcasting receiving system.

Description

Power control method of radio broadcasting receiving system

The present invention relates to a radio broadcast reception system, and more particularly, to a power control method of a radio broadcast reception system to automatically turn off various lamps mounted on a radio broadcast reception system when a radio broadcast station is completed.

In general, an audio system is an apparatus for recording or reproducing an audio signal on a medium, and a cassette tape, a record, and a disc are used as the medium.

This audio system consists essentially of a turntable, tuner, amplifier, cassette deck, and speaker unit, including equalizers and compact disc players. The back is added separately and is comprised.

The audio system includes a music center in which a speaker unit is separated but a tuner, an amplifier, and a cassette deck are composed of one main body, and a component system in which all devices are separated to have professional characteristics. Divided into.

As an example of such an audio system, the music center has an audio system in which a main body and a compact disc player constitute a set of playback devices, and a speaker unit is combined therein, and the speaker unit is an electrical signal. It is one of the transducers that converts the sound into an audio signal and outputs it. In addition, the audio system is equipped with a radio broadcast reception system, that is, a radio, which receives a radio broadcast signal and outputs a broadcast signal through a speaker.

Hereinafter, the operation of the radio broadcasting reception system in the audio system will be briefly described. First, when the operation function of the audio system is selected as a tuner (not shown), the operation of other devices, that is, the CD player and the cassette tape recorder, is blocked. And the tuner of the radio broadcast receiving system is operated.

In response to the operation of the tuner, a radio broadcast signal transmitted from a radio station is received through an antenna. The received radio broadcast signal is tuned to a broadcast channel for a corresponding frequency by a tuner and is provided to the user as an acoustic signal through a speaker after signal processing.

In this way, when the radio broadcast is completed in the radio station while listening to the radio broadcast, no audio signal is transmitted, the user directly turns off the radio broadcast receiving system.

In this case, when the user falls asleep while listening to the radio broadcast, the radio broadcast reception system may be continuously on even though the radio broadcast is completed.

As described above, the radio broadcasting receiving system of the audio system according to the prior art can directly turn off the radio broadcasting receiving system when the radio broadcasting is completed at the radio station and no audio signal is transmitted while listening to the radio broadcasting. There is a problem that provides the user hassle because there is only.

In addition, when the user falls asleep while listening to the radio broadcast, although the radio broadcast is completed, there is another problem that the power consumption increases because the radio broadcast reception system is continuously turned on.

In addition, because the various lamps and other semi-permanent fixtures mounted on the radio broadcast receiving system is also driven, there is another problem that its life is reduced. Accordingly, the present invention has been made to solve the above-mentioned problems according to the prior art, the object of the present invention is to operate the radio broadcast receiving system is activated when the radio broadcast is completed in the radio station automatically detects the radio The present invention provides a power control method of a radio broadcasting reception system capable of turning off various lamps mounted in a broadcasting reception system.

1 is a block diagram showing an apparatus for implementing a power control method of a radio broadcasting reception system according to the present invention.

2 is an operation flowchart illustrating a power control method of a radio broadcasting reception system according to the present invention.

♣ Explanation of symbols for main part of drawing ♣

11: receiver 12: amplifier

13: A / D conversion unit 14: control unit

15: various lamps

A feature of a power control apparatus of a radio broadcast reception system according to the present invention for achieving the above object is a radio broadcast reception system having various lamps and antennas, wherein a predetermined level amplification of a radio broadcast signal received through the antenna An amplification unit; An A / D converter converting the radio broadcast signal amplified by the amplifier into a digital signal; The A / D converter detects the DC level of the radio broadcast signal converted into the digital signal, compares the detected DC level with a preset reference DC level value, and compares the detected DC level with a preset reference DC level. In this case, the control unit for turning off the various lamps mounted on the radio broadcast receiving system.

In addition, a feature of the power control method of the radio broadcast receiving system according to the present invention is a power control method of a radio broadcast receiving system having an antenna and various lamps, which receives a radio broadcast signal transmitted from a radio station through the antenna. Steps; Amplifying the received radio broadcast signal at a predetermined level; Converting the amplified radio broadcast signal into a digital signal and detecting a DC level of the converted radio broadcast signal; Comparing the detected DC level with a preset reference DC level; When the detected DC level is smaller than the preset reference DC level as a result of the comparison, it is determined that the radio broadcasting is completed, and thus, various lamps mounted on the radio broadcasting receiving system are turned off.

Hereinafter, an embodiment of a power control method of a radio broadcasting reception system according to the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of an apparatus for implementing a power control method of a radio broadcasting reception system according to the present invention. Referring to FIG. 1, the radio broadcasting reception system is turned on at the same time as the radio broadcasting reception system is turned on. Various lamps 15 which are turned on so that the display unit (not shown) displaying the driving state and the frequency of the lamp at night, a receiver 11 for receiving a radio broadcast signal transmitted from a radio station, and a receiver 11 Amplification unit 12 for amplifying a predetermined level of the radio broadcast signal received from the radio wave signal, an A / D converter 13 for converting the radio broadcast signal amplified by the amplification unit 120 into a digital signal, and an A / D conversion unit. In step (13), the DC level of the radio broadcast signal converted into the digital signal is detected, and the detected DC level is compared with the preset reference DC level. As a result of the comparison, the detected DC level is smaller than the preset reference DC level value. Cut off the power supplied to the right the various lamps 15 and consists of a control unit 14 for turning off the lamp (15).

Let us look at the operation of the power control device of the radio broadcast receiving system according to the present invention having such a configuration.

First, turn on the audio system and switch the function to the tuner function to listen to the radio station.

Then, the radio broadcast signal transmitted from the radio station is received through the receiver 11. Here, the receiver 11 includes an antenna and a tuner.

When the radio broadcast signal is received through the receiver 11, the received radio broadcast signal is applied to the amplifier 12 and amplified by a predetermined level. The radio broadcast signal amplified by the amplifier 12 is applied to the A / D converter 13 and converted into a digital signal. Here, the received radio broadcast signal is an analog signal.

The radio broadcast signal converted into the digital signal by the A / D converter 13 is applied to the controller 14, and the controller 14 detects the DC level of the digital radio broadcast signal applied. The detected DC level is compared with the preset reference DC level. If the detected DC level is equal to or greater than the preset reference DC value, it is determined that the current radio station is transmitting a radio broadcast signal. When the radio broadcasting is received, that is, the radio broadcasting reception system is normally driven, and the detected DC level is less than the preset reference DC level, it is determined that the radio broadcasting is completed and the various lamps mounted on the radio broadcasting reception system (15). ) To turn off the lamp (15) by cutting off the power supplied to them.

The power control method of the radio broadcast reception system according to the present invention corresponding to the operation of the power control device of the radio broadcast reception system operated as described above will be described step by step with reference to FIG.

2 is an operation flowchart illustrating a power control method of a radio broadcasting reception system according to the present invention.

First, it is determined whether the power of the audio system is turned on (S101).

Subsequently, it is determined whether the operation function of the audio system is selected as the tuner function (S102), and when the tuner function is selected, the radio broadcast signal transmitted from the radio station is received through the antenna (S103). The received radio broadcast signal is tuned to a frequency corresponding to a channel selected by a user through a tuner to amplify the signal to a predetermined level.

The amplified radio broadcast signal is converted into a digital signal to detect a DC level of the converted digital radio broadcast signal (S104).

Next, the detected DC level is compared with the preset reference DC level to determine whether the detected DC level is smaller than the preset reference DC level (S105).

As a result of determination, when the detected DC level is higher than the preset reference level, it is determined that the radio broadcast signal is transmitted from the current radio station, that is, it is determined that the radio broadcast is currently in progress. Will be detected.

On the contrary, when the detected DC level is less than or equal to the preset reference level, it is determined that the radio broadcast signal is not being transmitted from the current radio station, that is, the radio broadcast is completed and the various lamps 15 mounted on the radio broadcast reception system 15 ) Off. Here, the preset reference DC level is a DC level when no radio broadcast signal is received.

As a result, the present invention detects the DC level of the received broadcast signal by receiving the radio broadcast signal transmitted from the radio station, and determines that the radio broadcast is completed when the detected DC level is less than the preset reference level, and mounts the radio broadcast reception system. To turn off the various lamps 15.

As described above, the power control method of the radio broadcast receiving system according to the present invention receives a radio broadcast signal transmitted from a radio station, detects a DC level of the received broadcast signal, and the detected DC level is less than or equal to a preset reference level. By deciding that the radio broadcast is completed, by turning off various lamps mounted on the radio broadcast receiving system, there is an advantage of minimizing power consumption by lighting of the various lamps mounted on the radio broadcast receiving system.

In addition, by automatically turning off the various lamps when the radio broadcast is completed, there is an effect that can extend the life of the lamps.

Claims (1)

In the power control method of a radio broadcasting reception system having an antenna and various lamps, Receiving a radio broadcast signal transmitted from a radio station through the antenna; Amplifying the received radio broadcast signal at a predetermined level; Converting the amplified radio broadcast signal into a digital signal and detecting a DC level of the converted radio broadcast signal; Comparing the detected DC level with a preset reference DC level; When the detected DC level is smaller than the preset reference DC level as a result of the comparison, it is determined that the radio broadcasting is completed, and thus the power control of the radio broadcasting receiving system comprises turning off various lamps mounted on the radio broadcasting receiving system. Way.