KR970007751A - Automatic traffic light controller using noise detector - Google Patents
Automatic traffic light controller using noise detector Download PDFInfo
- Publication number
- KR970007751A KR970007751A KR1019950020408A KR19950020408A KR970007751A KR 970007751 A KR970007751 A KR 970007751A KR 1019950020408 A KR1019950020408 A KR 1019950020408A KR 19950020408 A KR19950020408 A KR 19950020408A KR 970007751 A KR970007751 A KR 970007751A
- Authority
- KR
- South Korea
- Prior art keywords
- traffic
- noise
- signal
- vehicle
- traffic light
- Prior art date
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Abstract
본 발명은 소음감지기를 이용한 교통신호 등의 자동 제어기에 관한 것이다. 신호등의 자동 제어에는 교통량의 측정이 필요한다. 이를 위하여 현재 사용되는 방법으로는 도로에 감지 선로를 매복하거나 도로 상공에 적외선 감지기 설치하여 차량 통과를 측정하는 것이다. 그러나 이들 방법은 부품 및 설치비가 매우 비싸고, 또한 설치 공사기간 중 교통 체증을 유발하는 문제점을 가지고 있다. 본 발명에서는 교통량과 거리의 소음과의 상관 관계를 이용하여, 가격이 저렴하고 독립적으로 용이하게 신호등에 장착할 수 있는 소음감지기로 소음을 측정 이를 통하여 교통량을 추정하는 자동 제어기를 고안하였다. 즉 소음이 큰 경우(교통량이 많은 시간)에는 신호를 길게하여 차량 소통을 원활히 하고, 적은 경우(교통량이 적은 시간) 신호를 짧게하여 신호등에서 차량이 불필요하게 대기하는 시간을 줄이도록 하는 것이다. 이는 일정한 간격의 신호 등 체제에 비해 보다 효율적인 자동 제어가 가능하다. 이 제어 기법은 조정이 용이한 집적회로나 마이크로프로세서로 구현함으로써 소음을 통한 교통량 추정에서의 불확실을 실제 상용 설계시 다양하게 보완할 수 있다.The present invention relates to an automatic controller such as a traffic signal using a noise sensor. Automatic control of traffic lights requires the measurement of traffic volume. To this end, currently used methods include ambushing a sensing track on a road or installing an infrared detector over the road to measure the passage of a vehicle. However, these methods are very expensive parts and installation costs, and also has the problem of causing traffic jams during the installation work. In the present invention, by using the correlation between the traffic volume and the noise of the street, an automatic controller for estimating the traffic volume by measuring the noise with a noise detector that can be mounted on the traffic light easily and inexpensively and easily. In other words, when the noise is high (traffic time), the signal is lengthened to smoothly communicate with the vehicle, and when it is low (traffic time), the signal is shortened to reduce the time when the vehicle waits unnecessarily at the traffic light. This enables more efficient automatic control compared to the system such as regular interval signal. This control technique can be implemented in integrated circuits or microprocessors that can be easily adjusted to compensate for the uncertainty in noise estimation through various commercial designs.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
첨부도는 본 발명품의 부품별 개략도이다. 도면의 주요 부분에 대한 부호설명은 다음과 같다.The attached drawings are schematic diagrams for each part of the present invention. Reference numerals for the main parts of the drawings are as follows.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950020408A KR970007751A (en) | 1995-07-12 | 1995-07-12 | Automatic traffic light controller using noise detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950020408A KR970007751A (en) | 1995-07-12 | 1995-07-12 | Automatic traffic light controller using noise detector |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970007751A true KR970007751A (en) | 1997-02-21 |
Family
ID=66526330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950020408A KR970007751A (en) | 1995-07-12 | 1995-07-12 | Automatic traffic light controller using noise detector |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970007751A (en) |
-
1995
- 1995-07-12 KR KR1019950020408A patent/KR970007751A/en not_active Application Discontinuation
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Legal Events
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |