Outdoor lighting system with controlled luminance

• US 7,825,602 B2
• Filed: 11/15/2007
• Issued: 11/02/2010
• Est. Priority Date: 06/29/2007
• Status: Expired due to Fees

• Current Assignee: Foxsemicon Integrated Technology Incorporated
• Original Assignee: Foxsemicon Integrated Technology Incorporated
• Inventors: Hu, Sheng-Kai, Jiang, Wen-Jang
• Primary Examiner(s): TRAN, THUY V
• Application Number:
  US11/940,919
• Publication Number:
  US 20090002982A1
• Time in Patent Office: 1,083 Days
• Field of Search: 315/149, 315/152, 315155-157, 315/291, 315/307, 315/312, 315/324, 315/308, 362/85, 362/145, 362/276, 362/559, 362/576
• US Class Current: 315/152
• CPC Class Codes: F21S 8/086 with lighting device attached sideways of the standard, e.g. for roads and highways
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 23/0457 the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 47/18 via data-bus transmission
• CPC Class Codes: H05B 47/22 with communication between the lamps and a central unit
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

An outdoor lighting system comprises an outdoor light source, a luminance control device, a detection apparatus, a communication network and a main controlling system. The detection apparatus is configured for detecting a luminance of the light source and generating a corresponding detecting signal associated with the luminance of the light source. The main controlling system receives the detecting signal from the detection apparatus via the communication network, and generates a luminance control signal in responsive to the detecting signal; the luminance control device is configured for receiving the luminance control signal via the communication network and regulating the luminance of the light source according to the luminance control signal.

Claims

1. An outdoor lighting system, comprising:

an outdoor light source;

a luminance control device;

a detection apparatus configured for detecting a luminance of the light source and generating a corresponding detecting signal associated with the luminance of the light source;

a communication network; and

a main controlling system for receiving the detecting signal from the detection apparatus via the communication network, and generating a luminance control signal in responsive to the detecting signal;

the luminance control device being configured for receiving the luminance control signal via the communication network and regulating the luminance of the light source according to the luminance control signal;

wherein the detection apparatus is a luminance detection apparatus configured for detecting the luminance within an area of the radiation range of the light source;

wherein the detection apparatus is selected from a group consisting of an analog camera, an IP camera, a dome camera and a speed dome camera.

2. The outdoor lighting system according to claim 1, wherein the light source is selected from a group consisting of a high pressure sodium lamp, a metal halide lamp, and an LED lamp.

3. The outdoor lighting system according to claim 1, further comprising a lamp pole and a lamp housing secured on the lamp pole, the light source being received in the lamp housing.

4. The outdoor lighting system according to claim 3, wherein the luminance control device is installed on the lamp pole or in the lamp housing.

5. The outdoor lighting system according to claim 3, wherein the detection apparatus is installed on the lamp pole or in the lamp housing.

6. The outdoor lighting system according to claim 1, wherein the main controlling system comprises a server and a PC station, the server is configured for storing the detecting signal about the luminance of the light source, the PC station is configured for reading a luminance signal of the detecting signal from the server and analyzing the detecting signal to generating a control command for controlling the luminance of the light source.

7. The outdoor lighting system according to claim 1, wherein the communication network is selected from a group consisting of a wireless data communication network, and a wired network.

8. An outdoor lighting system, comprising:

an outdoor light source;

a detection apparatus configured for detecting a failed condition of the outdoor lighting source, and generating a corresponding detecting signal associated with the failed condition of the outdoor lighting source;

a communication network; and

a main controlling system for receiving the detecting signal from the detection apparatus via the communication network, the main controlling system comprising a server and a PC station, the server being configured for storing the detecting signal about the failed condition of the light source, the PC station being configured for displaying the failed condition of the outdoor lighting source for identifying the outdoor light source;

wherein the detection apparatus is selected from a group consisting of an analog camera, an IP camera, a dome camera and a speed dome camera.