Method of transmitting and receiving warning broadcast signals during drive in dangerous area, and system thereof
First Claim
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1. A system for transmitting and receiving warning broadcast signals during the driving in a dangerous area,said system comprising a transmitter for transmitting warning signals in said dangerous area, and a receiver installed in an automobile in order to pick up the warning signals and in order to output a broadcast corresponding to the dangerous area,said transmitter comprisingan integrator for integrating the supplied power to transfer it to a rectangular wave generating means;
- said rectangular wave generating means for generating rectangular signals corresponding to the particular feature of the dangerous area, after receipt of signals from said integrator and a duty varying means;
said duty varying means for deciding the period T of pulses of said rectangular wave generating means in accordance with the output conditions of a switching means;
a frequency generating means for generating an oscillating frequency;
a carrier wave generating means for generating a carrier frequency after receipt of the output signals of said frequency generating means;
a mixer means for combining said rectangular signals with said carrier frequency to form high frequency output signals;
a high frequency power amplifying means for amplifying the high frequency signals outputted from said mixer means; and
a transmitting means for transmitting the output signals of said high frequency power amplifying means through an antenna into the air, andsaid receiver comprisinga receiving means for removing the carrier waves from the warning signals after receipt of the transmitted signals from said transmitter through a receiver antenna;
a switching means for performing different switching operations based on the period T of the remaining rectangular waves after the removal of the carrier waves by said receiving means;
a micro computer for converting the output signals of said switching means (transmitted from said transmitter) to digital signals before storing them into a data memory means, and for selectively outputting the relevant warning broadcast from the data memory means;
said data memory means for storing various broadcasting data, and for operating under the control of said micro computer;
a low frequency power amplifying means for amplifying the warning broadcast outputted from the micro computer before outputting it through a speaker;
a rectifying means for rectifying the output signals of said micro computer in order to supply a power source to both a mute on/off switching means and a relay driving means;
said muting on/off switching means for deciding as to whether or not to mute the output signals of an audio apparatus of the automobile in accordance with the broadcasting data output status of said micro computer;
said relay driving means for driving a relay RL1, with said relay RL1 being for deciding as to whether or not to supply a power source IGN B+ to said low frequency power amplifying means in accordance with the broadcasting data output status of said micro computer;
first and second muting means 21,22 for muting the output signals of said audio apparatus upon outputting of said warning broadcast from said micro computer; and
a constant voltage means for applying the IGN B+ to said receiver after converting it to a predetermined level.
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Abstract
The present invention discloses a system capable of outputting a warning broadcast after picking up warning signals from a non-human-attended transmitter installed in a dangerous area, when an automobile runs such a dangerous area. Conventionally there are only warning signs installed on roads. If a driver enters into a dangerous area for the first time, or at night, the driver can often fail to properly cope with the suddenly appearing danger. The present invention gives a solution to such a problem in such a manner that a non-human-attended transmitter is installed in each of dangerous areas in order to emit relevant warning signals based on the particular feature of the danger lying ahead on the road (such as sharp curve of the road, steep slope of the road and the like), and that each automobile is provided with a receiver for picking up the warning signals emitted by the transmitter in order to output a warning broadcast by drawing the broadcasting data from a data memory of the receiver based on the received warning signals. Thus a driver is warned of the danger lying ahead in the form of a broadcast, so that the driver should be able to be ready for the imminent danger lying ahead.
54 Citations
2 Claims
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1. A system for transmitting and receiving warning broadcast signals during the driving in a dangerous area,
said system comprising a transmitter for transmitting warning signals in said dangerous area, and a receiver installed in an automobile in order to pick up the warning signals and in order to output a broadcast corresponding to the dangerous area, said transmitter comprising an integrator for integrating the supplied power to transfer it to a rectangular wave generating means; -
said rectangular wave generating means for generating rectangular signals corresponding to the particular feature of the dangerous area, after receipt of signals from said integrator and a duty varying means; said duty varying means for deciding the period T of pulses of said rectangular wave generating means in accordance with the output conditions of a switching means; a frequency generating means for generating an oscillating frequency; a carrier wave generating means for generating a carrier frequency after receipt of the output signals of said frequency generating means; a mixer means for combining said rectangular signals with said carrier frequency to form high frequency output signals; a high frequency power amplifying means for amplifying the high frequency signals outputted from said mixer means; and a transmitting means for transmitting the output signals of said high frequency power amplifying means through an antenna into the air, and said receiver comprising a receiving means for removing the carrier waves from the warning signals after receipt of the transmitted signals from said transmitter through a receiver antenna; a switching means for performing different switching operations based on the period T of the remaining rectangular waves after the removal of the carrier waves by said receiving means; a micro computer for converting the output signals of said switching means (transmitted from said transmitter) to digital signals before storing them into a data memory means, and for selectively outputting the relevant warning broadcast from the data memory means; said data memory means for storing various broadcasting data, and for operating under the control of said micro computer; a low frequency power amplifying means for amplifying the warning broadcast outputted from the micro computer before outputting it through a speaker; a rectifying means for rectifying the output signals of said micro computer in order to supply a power source to both a mute on/off switching means and a relay driving means; said muting on/off switching means for deciding as to whether or not to mute the output signals of an audio apparatus of the automobile in accordance with the broadcasting data output status of said micro computer; said relay driving means for driving a relay RL1, with said relay RL1 being for deciding as to whether or not to supply a power source IGN B+ to said low frequency power amplifying means in accordance with the broadcasting data output status of said micro computer; first and second muting means 21,22 for muting the output signals of said audio apparatus upon outputting of said warning broadcast from said micro computer; and a constant voltage means for applying the IGN B+ to said receiver after converting it to a predetermined level.
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2. A system for receiving warning broadcast signals during the driving in a dangerous area, which comprise a receiver installed in an automobile in order to pick up the warning signals and in order to output a broadcast corresponding to the dangerous area,
said receiver comprising a receiving means for removing carrier waves from the warning signals after receipt of the transmitted signals from a transmitter through an antenna; -
a switching means for performing different switching operations based on a period T of remaining rectangular waves after removal of the carrier waves by said receiving means; a micro computer for converting the output signals of said switching means (transmitted from said transmitter) to digital signals before storing them into a data memory means, and for selectively outputting the relevant warning broadcast from the data memory means; said data memory means for storing various broadcasting data, and for operating under the control of said micro computer; a low frequency power amplifying means for amplifying the warning broadcast outputted from the micro computer before outputting it through a speaker; a rectifying means for rectifying the output signals of said micro computer in order to supply a power source to both a mute on/off switching means and a relay driving means; said mute on/off switching means for deciding as to whether or not to mute the output signals of an audio apparatus of the automobile in accordance with the broadcasting data output status of said micro computer; said relay driving means for driving a relay RL1, with said relay RL1 for deciding as to whether or not to supply a power source IGN B+ to said low frequency power amplifying means in accordance with the broadcasting data output status of said micro computer; first and second muting means 21,22 for muting the output signals of said audio apparatus upon outputting of said warning broadcast from said micro computer; and a constant voltage means for applying the IGN B+ to said receiver after converting it to a predetermined level.
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Specification
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Current AssigneeHyundai Electronics Industries Co. Ltd. (SK Hynix Inc.)
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Original AssigneeHyundai Electronics Industries Co. Ltd. (SK Hynix Inc.)
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InventorsJung-Gon, An
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Primary Examiner(s)Eisenzopf, Reinhard J.
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Assistant Examiner(s)VO, NGUYEN THANH
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Application NumberUS07/796,087Time in Patent Office790 DaysField of Search455/70, 455/68, 455/45, 455/54.1, 455/54.2, 455/56.1, 455/129, 455/186.1, 455/186.2, 455/194.1, 340/905, 340/825.63, 340/825.64, 375/22, 375/23US Class Current455/70CPC Class CodesG08G 1/096716 where the received informat...G08G 1/09675 where a selection from the ...G08G 1/096783 where the origin of the inf...
