Traffic light control and information transmission device

• US 6,710,722 B2
• Filed: 07/09/2002
• Issued: 03/23/2004
• Est. Priority Date: 07/26/2001
• Status: Expired due to Fees

• Current Assignee: Hsi-Che Lee, Mei-Jiuan Chen, Tung-Hsing Pan
• Original Assignee: Hsi-Che Lee, Mei-Jiuan Chen, Tung-Hsing Pan
• Inventors: Lee, Hsi-Che
• Primary Examiner(s): Hofsass, Jeffery
• Assistant Examiner(s): PHAM, LAM P
• Application Number:
  US10/190,541
• Publication Number:
  US 20030020633A1
• Time in Patent Office: 623 Days
• Field of Search: 340/907, 340/909, 340/911, 340/915, 340/916-919, 340/924, 340/925, 340/937
• US Class Current: 340/910
• CPC Class Codes: G08G 1/08 according to detected number or speed of vehicles
• CPC Class Codes: G08G 1/081 Plural intersections under common control

Abstract

A traffic light control and information transmission device compromising a microprocessor on the cross road, the microprocessor further connects to a traffic light controller, an electronic display board, a video camera, a compression circuitry, an I/O interface, a traffic flow detector and connected to the central traffic control computer through the DSL (Digital Subscriber Loop). The control signals, traffic, public information or news of the central traffic control computer can go through the DLS to the microprocessor; the microprocessor can control the traffic light and display all the information on the electronic display board. The traffic flow data of the cross roads can be accessed by the traffic flow detector and the video camera and transmitted back to the central traffic control computer.

Claims

1. A traffic light control and information transmission device comprising:

a microprocessor located inside the traffic control box and to control all the circuitries;

a traffic light controller connected to and controlled by said microprocessor to send out the stop, go and direction signals;

an electronic display board connected to and controlled by said microprocessor to display characters, patterns and graphic images;

a video camera connected to and controlled by said microprocessor to monitor the traffic flow;

a compression circuitry connected to said microprocessor and said video camera, said compression circuitry compresses the image data captured by said video camera and sends the data to said microprocessor;

an I/O interface connected to said microprocessor to receive, transmit data and control signals;

a traffic flow detector connected to said I/O interface and gathering the traffic flow information;

the traffic flow information is input to said microprocessor;

a DSL connected to said I/O interface 6 and receiving, transmitting data and control signals;

a broadband network linking said DSL and a central traffic control computer together, said central traffic control computer sends out and receives the data and controls signals to said microprocessor through said broadband network.

2. The traffic light control and information transmission device recited in claim 1, wherein said video camera can be a picture camera.

3. The traffic light control and information transmission device recited in claim 1, wherein said DSL can be a cable modem, ADSL, VDSL, or XDSL.