LIFI communication system

• US 10,187,145 B2
• Filed: 04/04/2016
• Issued: 01/22/2019
• Est. Priority Date: 03/17/2013
• Status: Active Grant

• Current Assignee: Bao Tran
• Original Assignee: Bao Tran
• Inventors: Tran, Bao
• Primary Examiner(s): Woldekidan, Hibret A
• Application Number:
  US15/090,521
• Publication Number:
  US 20160218807A1
• Time in Patent Office: 1,023 Days
• Field of Search: 398172, 398135, 398138, 398118, 398127, 398128, 398130, 398164, 398140, 398141
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21V 19/0005 of sources having contact pins, wires or blades, e.g. pinch sealed lamp F21V19/001 takes precedence
• CPC Class Codes: F21V 29/502 characterised by the adaptation for cooling of specific components
• CPC Class Codes: F21V 29/56 using liquid coolants F21V29/51 takes precedence
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21V 3/061 the material being glass
• CPC Class Codes: F21V 3/062 the material being plastics
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H04B 10/116 Visible light communication
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y10T 29/49002 Electrical device making
• CPC Class Codes: Y10T 29/4913 Assembling to base an electrical component, e.g., capacitor, etc.

Abstract

A communication system includes a light source to generate light; a broadband light transmitter control electronics to modulate a light signal and provide broadband optical data transmission network using the light source; a broadband light receiver control electronics to demodulate a received light signal from the broadband optical data transmission network; and a wired network transceiver coupled to the light transmitter/receiver to receive and transmit data between the optical data transmission network and a wired circuit.

Claims

1. A communication system, comprising:

a light source to generate light and a light connector fitting a T-5, T-8, or T-12 fluorescent tube or a light connector fitting an incandescent bulb, wherein the connector provides data communication and operation of the light source, the connector coupled to a wired circuit for communicating with a database for parameters and environmental conditions for predetermined positions or zones of a structure for individual periods of time and dates, wherein the light source is in thermal contact with a cooling liquid;

a broadband light transmitter control electronics to modulate the light signal and provide broadband optical data transmission network over 1 Mbps using the light source;

a broadband light receiver control electronics to demodulate a received light signal from the broadband optical data transmission network; and

a wired network transceiver coupled to the connector to receive and transmit data between the optical data transmission network and the wired circuit.

2. The system of claim 1, comprising a HVAC (heating, ventilating, and air conditioning) system coupled to an optical transceiver to communicate operation data over the broadband optical data transmission network.

3. The system of claim 1, wherein the wired circuit comprises at least a Broadband-over-Power-Line (BPL) transceiver.

4. The system of claim 1, comprising an observation and identification database optically coupled to sensors disposed about a building, the database communicating with temperature sensors within specific locations, pressure sensors, motion detectors, communications badges, phone number identifiers, sound transducers, and fire detectors.

5. The system of claim 4, wherein the database captures parameters and environmental conditions for specific zones of a structure for individual periods of time and dates and wherein a processor receives data from remote sensors for comparison to learned data to identify discrepancies.

6. The system of claim 5, comprising security or surveillance module within a structure for identification of an unauthorized individual within a security zone.

7. The system of claim 1, comprising a pulsed light controller coupled to the light source.

8. The system of claim 7, comprising an encryption module coupled to the pulsed light controller to provide secure broadband communication.

9. The system of claim 1, wherein the pulsed light controller generates rotating and oscillating light signals sequentially illuminating columns of LEDs on a stationary light support with a variable light intensity or with a motor.

10. The system of claim 1, comprising a bulb, including:

a sealed body having an interior chamber with a liquid portion and a vapor or gas portion;

a boiling enhancement surface positioned in a predetermined location on the interior chamber and thermally coupled to the liquid portion a; and

a light source thermally coupled to the predetermined location on an exterior portion of the sealed body.

11. The system of claim 1, wherein a light source color is changed to provide a visual indicator for a predetermined event.

12. The system of claim 1, wherein the light source comprises LEDs each with a different color that when combined, have a predetermined bulb color.

13. The system of claim 1, wherein the color of the light source is specified using a computer or mobile device such as a phone, or programmed in advance.

14. The system of claim 1, wherein the bulb color is automatically changed based on a mood of the user as detected by a sensor or sensed from messages and emails recently transmitted by a user.

15. The system of claim 1, comprising a data transceiver coupled to the LED to communicate and/or transfer data over a wired network, optical network, or wireless network.

16. The system of claim 1, comprising a processor for optimizing lighting efficiency or predictive maintenance.