Remotely powered, multisite sensing system with a shared, two-wire bus for power and communication

A method comprising:

• using a first sensor of a sensing system to generate a first data signal;
• using a second sensor of the sensing system to generate a second data signal, wherein the second sensor and the first sensor are spatially separated;
• using a shared bus of the sensing system to provide the first and second data signals from the first and second sensors to an interface device of the sensing system, wherein the shared bus is connected to the interface device, the first sensor, and the second sensor;
• and
• using the interface device to convey the first and second data signals to a transceiver external to the sensing system.

A method comprising:

• using an interface device of a sensing system to receive a command from a transceiver external to the sensing system, wherein the command includes an address;
• using a shared bus of the sensing system to provide the command received by the interface device to first and second sensors of the sensing system, wherein the shared bus is connected to the interface device, the first sensor, and the second sensor;
• using the first sensor of the sensing system to extract the address from the command, determine that the extracted address matches a first address, and generate a response to the command;
• using the second sensor of the sensing system to extract the address from the command, determine that the extracted address does not match a second address, and not provide a response to the command, wherein the first address is different than the second address;
• using the shared bus to provide the response generated by the first sensor to the interface device;
• and
• using the interface device to convey the response generated by the first sensor to the transceiver.