System and method for performing distributed sequential node localization in active sensor deployment
First Claim
1. A system for performing distributed sequential node localization in active sensor deployment, comprising:
- an equilateral orthogonal reference frame comprising s+1 anchor nodes that is placed in unreferenced s-dimensional physical space, wherein the s+1 anchor nodes comprise s outer anchor nodes situated at fixed distances from a root anchor node located at the vertex of the reference frame; and
a mobile effector to sequentially place new nodes in a natural sequential ordering within the s-dimensional physical space to form a sequentially well-connected network, wherein each of the new nodes is connected to at least s+1 of previously placed nodes, comprising;
a mobility unit to move within a predefined distance to the location of one of the previously placed nodes;
a telemetry interface to transmit ultrasonic signals to the previously placed nodes when at the predefined distance and to obtain ultrasonic signal responses comprising location estimates for the new node from the anchor nodes previously placed in the s-dimensional physical space; and
a placement evaluator to determine a location for the new node based on the location estimates, wherein the new node is placed in the s-dimensional physical space as a new anchor node proximate to at least one of the s+1 previously-placed anchor nodes upon receipt of location estimates from at least s+1 anchor nodes and satisfactory location determination.
4 Assignments
0 Petitions
Accused Products
Abstract
A system and method for performing distributed sequential node localization in active sensor deployment is presented. An equilateral orthogonal reference frame is defined. The reference frame includes s+1 anchor nodes that is placed in s-dimensional physical space. New nodes are sequentially placed in a natural sequential ordering within the s-dimensional physical space to form a sequentially well-connected network. For each of the new nodes, location estimates are obtained for the new node from at least s+1 of the anchor nodes previously placed in the s-dimensional physical space. A location is determined for the new node based on the location estimates. The new node are placed in the s-dimensional physical space as a new anchor node proximate to at least one of the s+1 previously-placed anchor nodes upon satisfactory location determination.
7 Citations
24 Claims
-
1. A system for performing distributed sequential node localization in active sensor deployment, comprising:
-
an equilateral orthogonal reference frame comprising s+1 anchor nodes that is placed in unreferenced s-dimensional physical space, wherein the s+1 anchor nodes comprise s outer anchor nodes situated at fixed distances from a root anchor node located at the vertex of the reference frame; and a mobile effector to sequentially place new nodes in a natural sequential ordering within the s-dimensional physical space to form a sequentially well-connected network, wherein each of the new nodes is connected to at least s+1 of previously placed nodes, comprising; a mobility unit to move within a predefined distance to the location of one of the previously placed nodes; a telemetry interface to transmit ultrasonic signals to the previously placed nodes when at the predefined distance and to obtain ultrasonic signal responses comprising location estimates for the new node from the anchor nodes previously placed in the s-dimensional physical space; and a placement evaluator to determine a location for the new node based on the location estimates, wherein the new node is placed in the s-dimensional physical space as a new anchor node proximate to at least one of the s+1 previously-placed anchor nodes upon receipt of location estimates from at least s+1 anchor nodes and satisfactory location determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method for performing distributed sequential node localization in active sensor deployment, comprising:
-
defining an equilateral orthogonal reference frame comprising s+1 anchor nodes that is placed in unreferenced s-dimensional physical space, wherein the s+1 anchor nodes comprise s outer anchor nodes situated at fixed distances from a root anchor node located at the vertex of the reference frame; and sequentially placing new nodes in a natural sequential ordering within the s-dimensional physical space to form a sequentially well-connected network, wherein each of the new nodes is connected to at least s+1 of previously placed nodes, comprising; moving within a predefined distance to the location of one of the previously placed nodes; transmitting ultrasonic signals to the previously placed nodes when at the predefined distance; obtaining ultrasonic signal responses comprising location estimates for the new node from the anchor nodes previously placed in the s-dimensional physical space and determining a location for the new node based on the location estimates; and placing the new node in the s-dimensional physical space as a new anchor node proximate to at least one of the s+1 previously-placed anchor nodes upon receipt of location estimates from at least s+1 anchor nodes and satisfactory location determination. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A system for performing distributed sequential node localization in active sensor deployment using simple sequential multilateration, comprising:
-
a reference frame comprising s+1 anchor nodes with s of the anchor nodes orthogonal to and at a known distance from a root anchor node located at the vertex of the reference frame; and a mobile effector, comprising; a sequential localizer to sequentially add new nodes in a natural sequential ordering into unreferenced s-dimensional physical space to form a sequentially well-connected network, wherein each of the new nodes is connected to at least s+1 of previously placed nodes, comprising; a mobility unit to move within a predefined distance to the location of one of the previously placed nodes; a telemetry interface to request ultrasonic signals comprising location estimates for the new node from at least s+1 of the anchor nodes previously placed in the s-dimensional physical space when at the predefined distance; and a placement evaluator to determine a location for the new node based on the location estimates by performing simple sequential multilateration; and a placement tool to place the reference frame in an s-dimensional physical space and to place the new node in the s-dimensional physical space as a new anchor node proximate to at least one of the s+1 previously-placed anchor nodes upon receipt of the location estimates from the at least s+1 of the previously placed anchor nodes and achieving satisfactory results through the simple sequential multilateration. - View Dependent Claims (18, 19, 20)
-
-
21. A method for performing distributed sequential node localization in active sensor deployment using simple sequential multilateration, comprising:
-
defining a reference frame comprising s+1 anchor nodes with s of the anchor nodes orthogonal to and at a known distance from a root anchor node located at the vertex of the reference frame; placing the reference frame in an unreferenced s-dimensional physical space; and sequentially adding new nodes in a natural sequential ordering into the s-dimensional physical space to form a sequentially well-connected network, for each of the new nodes, comprising; moving within a predefined distance to the location of one of the previously placed nodes; requesting ultrasonic signals comprising location estimates for the new node from at least s+1 of the anchor nodes previously placed in the s-dimensional physical space when at the predefined distance; obtaining the location estimates from at least s+1 of the previously-placed anchor nodes; determining a location for the new node based on the location estimates by performing simple sequential multilateration; and placing the new node in the s-dimensional physical space as a new anchor node proximate to at least one of the s+1 previously-placed anchor nodes upon receipt of the location estimates from the at least s+1 of the previously placed anchor nodes and achieving satisfactory results through the simple sequential multilateration. - View Dependent Claims (22, 23, 24)
-
Specification