CENTRALIZED BUS INTERFACE WITH SINGLE WIRE SECONDARY DISTRIBUTION

• US 20090094398A1
• Filed: 12/12/2008
• Published: 04/09/2009
• Est. Priority Date: 09/17/2003
• Status: Active Grant

• Current Assignee: John E. Eng
• Original Assignee: John E. Eng
• Inventors: Eng, John E.
• Granted Patent: US 8,245,979 B2
• Time in Patent Office: Days
• US Class Current: 710/305
• CPC Class Codes: B64G 1/428 Power distribution and management

Abstract

A system for single wire secondary distribution comprising a spacecraft platform; a central bus interface unit coupled to the spacecraft platform; a payload unit coupled to the central bus interface unit; and a centralized power supply for powering the central bus interface unit and the payload unit; wherein the spacecraft platform provides a command to the central bus interface unit; wherein the central bus interface unit interrupts the power to the payload unit in a manner corresponding to the commands received by the central bus interface unit; wherein the payload unit decodes the interruption to the power and executes the command from the spacecraft platform.

Claims

1. A method of transmitting data comprising the steps of:

sending a command from a platform command processor to a central bus interface unit;

providing power over a power line from a central power supply to a payload unit; and

interrupting the power to the payload unit to provide the payload unit with the command from the platform command processor.

2. A method of claim 1 further comprising sending telemetry from the payload unit to the platform command processor.

3. A method of claim 2 wherein the telemetry is sent over the power line.

4. A method of claim 1 further comprising the steps of:

providing power over the power line from the central power supply to a second payload unit; and

interrupting the power to the second payload unit to provide the second payload unit with a second command from the platform command processor.

5-20. -20. (canceled)