Two-dimensional signal transmission technology for robotics

Abstract

The forms of communication available now are categorized into the one or three dimensional. One dimensional communication includes metal wires and optical fibers in which the electro-magnetic field is confined in one dimensional medium. Wireless communication based on RF or optical connection emits electro-magnetic field in 3-D space. Now what if we have "two-dimensional communication" in which signals travels from one point to another point freely in elastic two-dimensional space using electromagnetic field confmed in 2-D space? In this paper, we describe such a new technology of 2-D communication brings new paradigm to robotics. The methodologies of machine-design, system-integration, sensing, and computing will be drastically changed. We show architecture of the 2-D signal transmission based on relaying packets between communication chips on a thin sheet, the physical structure of the 2-D signal transmission, the protocols of the signal relay, and the results of the basic experiments.

Towards a minimal architecture for a printable, modular, and robust sensing skin

“…Still others do away entirely with conventional wires to use optical [7], radio frequency [8], or ad-hoc communication methods [9]. Also considered are Tapped Delay Lines (TDLs), which use passive time delay components to time sequence sensor output on a single analog line, and standard addressable bus communication networks such as I 2 C. Finally, recent work [10] in modular sensing units uses a Cellular Finite State Automata (CFSA) model of computation and data transmission in a redundantly wired surface area network.…”

“…The Ad-Hoc network approach with diffusive coupling [9] shows good resiliency to individual node failure, but does not offer the ability to extract topology information from neighbor connections. The fact that each node must be individually addressed also complicates initial configuration, and storage of the hop list limits the total size of the network.…”

Resonant Proximity Connector for Two-Dimensional Sensor Implantation

“…We proposed Two-Dimensional Communication (TDC) method to realize wireless sensor networks in two-dimension [1,4]. Fig.1 shows the Schematic illustration of TDC sheet.…”

“…In the methods of [1,4], the connection needed mechanical and electrical contact to the TDC sheet, which made production process complex and caused stress concentration around the connection that made the device fragile. In this paper we solve the problems by the proximity connection.…”

Two-dimensional communication of networked devices through a single conductive surface

“…Data propagate as an electromagnetic wave in the dielectric layer insulating the two conductive layers (or as a diffusive perturbation [6]) and are finally detected at the receiver point. Two conductive planes must be available, implying that: (a) a relatively complex and expensive fabrication process to generate and join the conductive layers at both sides of the insulation is involved (b) careful control during fabrication is required to avoid short-circuits between the conductive layers, (c) an unintentional short-circuit between the two conductive layers during operation may degrade or interrupt the communication, and (d) the interface between the electronic devices and both surfaces is relatively complex.…”