Method and apparatus for sensing utilizing tiles
An apparatus for sensing includes a computer. The apparatus includes one or more individual sensing tiles in communication with the computer that form a sensor surface that detects force applied to the surface and provides a signal corresponding to the force to the computer which produces from the signal a time varying continuous image of force applied to the surface, where the surface is contiguous, and detected force can be sensed in a manner that is geometrically continuous and seamless on a surface. A method for determining locations of tiles of a sensor.
1. An apparatus for sensing comprising:
a computer and a plurality of individual sensing tiles in communication with the computer that form a sensor surface that detects force applied to the surface and provides a signal corresponding to the force to the computer which produces from the signal a time varying continuous image of force applied to the surface, where the surface is contiguous, and detected force can be sensed in a manner that is geometrically continuous and seamless on a surface, each tile having protrusions; and
bridging plates which span across pairs of the protrusions on different sensing tiles, the computer causes prompting signals to be sent to the sensing tiles and reconstructs a continuous position of force on the surface from interpolation based on data signals received from the sensing tiles, each sensing tile has a microcontroller that produces data packets that have the sensing tile's identity from which the data packets are produced and which are sent over a common communication protocol shared by the microcontroller of each sensing tile to the computer, a printed circuit board having the microcontroller and a layer having an inner face below the protrusions with a cavity in which the printed circuit board is disposed.
2. The apparatus of claim 1 wherein the plurality of sensing tiles includes a master tile in communication with the computer and slave tiles in communication with the master tile, the master tile receives the data packets produced from the slave tiles and provide them to the computer.
3. The apparatus of claim 1 wherein the plurality of sensing tiles receive power from the computer.
4. A method for sensing comprising:
detecting a force applied to a sensor surface formed of a plurality of individual sensing tiles having protrusions from an object moving across the surface where the surface is contiguous, detected force can be sensed in a manner that is geometrically continuous and seamless on a surface with bridging plates which span across pairs of the protrusions on different sensing tiles;
including the step of producing with a microcontroller of each sensing tile data packets that have the sensing tile's identity from which the data packets are produced and which are sent over a common communication protocol shared by the microcontroller of each sensing tile to a computer, each sensing tile having a printed circuit board having the microcontroller and a layer having an inner face below the protrusions with a cavity in which the printed circuit board is disposed;
providing a signal corresponding to the force to the computer from the tiles in communication with the computer; and
producing with the computer from the signal a time varying continuous image of force applied to the surface.
5. The method of claim 4 including the step of connecting an additional tile to at least one of the two tiles to expand the size of the sensor surface, where the surface includes the additional tile and is contiguous, and detected force can be sensed in a manner that is geometrically continuous and seamless on a surface.
6. The method of claim 4 including the step of imparting force to a top of a mechanical layer that is transmitted through at least one intersection of a plurality of intersections, and thence to at least one protrusion of a set of protrusions in contact with at least one of the intersections, where the intersections are defined by a grid of wires and areas of space between the wires, and the mechanical layer has a plurality of plates that are disposed atop the grid of wires.
7. The method of claim 4 including the step of imparting force to a top of a mechanical layer that is transmitted through at least one protrusion of a set of protrusions to at least one intersection of a plurality of intersections, where the intersections are defined by a grid of wires and areas of space between the wires, and the mechanical layer has a plurality of plates that are disposed atop the grid of wires.
8. The method of claim 5 wherein the plurality of sensing tiles includes a master tile in communication with the computer and slave tiles in communication with the master tile, and there is the step of the master tile receiving the data packets produced from the slave tiles and provide them to the computer.