Network-based aircraft secondary electric power distribution system
First Claim
1. An electric power distribution system comprising:
- at least one source of electrical power;
at least one load connected by a conductor to said at least one source of electrical power;
a switch disposed across said conductor, said switch connecting said load to said at least one source of electrical power when in a closed state and disconnecting said load from said at least one source of electrical power when in an open state;
at least one master node;
a wireless communication network carrying commands from said master node to said switch to open said switch and commands to close said switch; and
an avionics full-duplex switched Ethernet (AFDX) system in an aircraft, said AFDX being connected to said master node, said AFDX system being configured to receive commands from at least one component of said aircraft to open and close said switch.
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Abstract
A system and method for control of an electric power distribution system is provided, which uses a communication network for centralized monitoring and control of the supply of electricity to a load. In one embodiment, the invention may use a wireless communication system connecting control nodes and master nodes to control and monitor a solid state power controller. As a result, the master node may remotely turn on and off the electrical power to the load. Also the control node may sense the current being supplied to the load and may turn off the supply of electrical power in the event of an over current situation. The control node may also report the state of the sensed current to the master node. In another embodiment, the communication system may be a power line carrier network.
30 Citations
19 Claims
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1. An electric power distribution system comprising:
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at least one source of electrical power; at least one load connected by a conductor to said at least one source of electrical power; a switch disposed across said conductor, said switch connecting said load to said at least one source of electrical power when in a closed state and disconnecting said load from said at least one source of electrical power when in an open state; at least one master node; a wireless communication network carrying commands from said master node to said switch to open said switch and commands to close said switch; and an avionics full-duplex switched Ethernet (AFDX) system in an aircraft, said AFDX being connected to said master node, said AFDX system being configured to receive commands from at least one component of said aircraft to open and close said switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for sensing electrical power transferred to a load within an aircraft comprising:
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a load comprising at least one electrical component of said aircraft; a source of electrical power within said aircraft connected by a conductor to said load; a sensor within said aircraft connected to said conductor, said sensor detecting a current passing through said conductor to said load; a microcontroller within said aircraft connected to said sensor; and a wireless communication network within said aircraft coupled to said sensor and to said microcontroller, said wireless communication network being configured to transmit information a distance of between about 10 and 50 meters, within said aircraft, regarding said current detected by said sensor. - View Dependent Claims (14, 15, 16)
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17. A method for controlling an electric power distribution system within an aircraft comprising:
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transferring electrical power from a source within an aircraft to a load through a conductor, said conductor having a switch connected to a control node, said load being an electrical component of said aircraft; receiving at least one command from at least one component of said aircraft with a master node comprising an avionics full-duplex switched Ethernet (AFDX) system; sending a plurality of commands from said master node to said control node through a powerline carrier communication network, said plurality of commands including commands to open said switch and commands to close said switch; receiving said plurality of commands in said control node through said powerline carrier communication network; sending a plurality of signals to said switch from said control node, a first type of said plurality of signals causing said switch to open and a second type of said plurality of signals causing said switch to close; opening said switch in response to said command to open said switch and closing said switch in response to said command to close said switch; and said step of opening and said step of closing said switch effectuating the operation of said electrical component of said aircraft. - View Dependent Claims (18, 19)
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Specification