System, devices, and method for on-body data and power transmission

An on-body sensor system comprising:

• a hub configured to be attached to a surface of a user, the hub being further configured to transmit electrical power and data signals into the surface and to receive response data signals from the surface;
• and
• at least one sensor node configured to be attached to the surface, the at least one sensor node being further configured to receive the electrical power and data signals from the hub through the surface and to transmit the response data signals into the surface,
• wherein the at least one sensor node is powered by the electrical power received from the hub to generate sensor information that is transmitted back to the hub within the response data signals,
• wherein the hub is further configured to determine a location of the at least one sensor node based on time required to transmit an electrical power and data signal into the surface and to receive a response data signal from the at least one sensor node.