PEDESTRIAN DETECTION RADAR USING ULTRA-WIDE BAND PULSE AND TRAFFIC LIGHT CONTROL SYSTEM INCLUDING THE SAME

• US 20160292996A1
• Filed: 01/11/2016
• Published: 10/06/2016
• Est. Priority Date: 03/30/2015
• Status: Abandoned Application

• Current Assignee: Hoseotelnet Company Limited
• Original Assignee: Hoseotelnet Company Limited
• Inventors: LEE, Dong Il, KIM, Sang Soo
• Application Number:
  US14/992,324
• Publication Number:
  US 20160292996A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G08G 1/005 including pedestrian guidance indicator
• CPC Class Codes: G08G 1/07 Controlling traffic signals

Abstract

A pedestrian detection radar for detecting a human being using a crosswalk using an ultra-wide band (UWB) pulse signal and a traffic light control system including the same are provided. The pedestrian detection radar includes a first transmitting module configured to transmit a first signal having a UWB pulse to a detection region; a receiving module configured to receive a second signal which is reflected from an object in the detection region and is related with the first signal; an analyzing module configured to analyze the second. signal, to determine whether the object is a human being according to an analysis result, and to generate a determination signal; and a second transmitting module configured to generate a control signal using the determination signal and to transmit the control signal to the traffic light.

Claims

1. A pedestrian detection radar for controlling a traffic light using a control signal, the pedestrian detection radar comprising:

a first transmitting module configured to transmit a first signal having an ultra-wide band (UWB) pulse to a detection region;

a receiving module configured to receive a second signal which is reflected from an object n the detection region and is related with the first signal;

an analyzing module configured to analyze the second signal, to determine whether the object is a human being according to an analysis result, and to generate a determination signal; and

a second transmitting module configured to generate the control signal using the determination signal and to transmit the control signal to the traffic light.

2. The pedestrian detection radar of claim I, wherein the analyzing module analyzes the second signal with reference to a biometric reference signal stored in a memory.

3. The pedestrian detection radar of claim 2, wherein the analyzing module compares a level of the second signal with a level of the biometric reference signal and generates the determination signal according to a comparison result.

4. The pedestrian detection radar of claim 2, wherein the analyzing module compares a pattern of the second signal with a pattern of the biometric reference signal and generates the determination signal according to a comparison result.

5. The pedestrian detection radar of claim I. wherein when the traffic light is a pedestrian signal light which is red and it is determined that the object is a human being who is about to enter a crosswalk, the analyzing module generates the control signal for changing the pedestrian signal light from red to green.

6. The pedestrian detection radar of claim 5, wherein the analyzing module determines that the object is a human being who is about to enter the crosswalk based on a result of comparing a level of the first signal with a level of the second signal.

7. The pedestrian detection radar of claim 5, wherein the analyzing module calculates a distance between the pedestrian detection radar and the object using a difference between a time when the first signal is transmitted and a time when the second signal is received and determines that the human being is about to enter the crosswalk according to a calculation result.

8. A traffic light control system comprising:

a traffic light; and

a plurality of pedestrian detection radars configured to control the traffic light using a control signal, each of the pedestrian detection radars comprising a first transmitting module configured to transmit a first signal having an ultra-wide band (UWB) pulse to a detection region;

a receiving module configured to receive a second signal which is reflected from an object in the detection region and is related with the first signal;

an analyzing module configured to analyze the second signal, to determine whether the object is a human being according to an analysis result, and to generate a determination signal; and

a second transmitting module configured to generate the control signal using the determination signal and to transmit the control signal to the traffic light.

9. The traffic light control system of claim 8, wherein the analyzing module analyzes the second signal with reference to a biometric reference signal stored in a memory.

10. The traffic light control system of claim 8, wherein when the traffic light is a pedestrian signal light which is red and it is determined that the object is a human being who is about to enter a crosswalk, the analyzing module generates the control signal for changing the pedestrian signal light from red to green.