Radio-controlled two way acoustic modem
A radio-controlled, two-way acoustic modem for operating with a distributed fiber optic sensing (DFOS) system including circuitry that receives radio signals including configuration information, configures the modem to operate according to the configuration information, and generate acoustic signals that are detected by the DFOS system. The acoustic modem includes one or more sensors that detect environmental information that is encoded in the acoustic signals for further reception by the DFOS system. The received configuration information may change the operating times, sensors or other operating aspects of the modem as desired and such information may be transmitted from a fixed location or a mobile vehicle.
1 . A radio-controlled, two-way acoustic modem for providing data to a distributed fiber optic sensing (DFOS) system, the modem comprising:
circuitry configured to
receive, via a radio interface, wireless radio signals including configuration information for the acoustic modem, wherein the wireless radio signals including the configuration information originate from a remote controller;
process the received wireless radio signals including the configuration information to modify operating parameters for the acoustic modem in accordance with the processed wireless radio signals including the configuration information; and
in response to said modifying the operating parameters, cause n vibrators that are communicatively coupled to the circuitry and physically mounted at n different locations along an optical sensor fiber of the DFOS system to generate physical vibrations in accordance with the operating parameters wherein the physical vibrations encode sensor data for transmission to an interrogator of the DFOS system;
wherein the generated physical vibrations are subsequently detected by the interrogator of the DFOS system to recover the encoded sensor data.
2 . The radio-controlled, two-way acoustic modem according to claim 1 further comprising one or more sensors that measure physical environmental parameters, and the circuitry is further configured to process the measured physical environmental parameters to generate the physical vibrations according to the measured physical environmental parameters.
3 . The radio-controlled, two-way acoustic modem according to claim 2 , wherein the configuration information includes enabling or disabling the one or more sensors.
4 . The radio-controlled, two-way acoustic modem according to claim 3 wherein the received wireless radio signals including the configuration information are transmitted from a fixed location.
5 . The radio-controlled, two-way acoustic modem according to claim 3 wherein the received wireless radio signals including the configuration information are transmitted from a mobile vehicle.
6 . The radio-controlled, two-way acoustic modem according to claim 1 wherein n is greater than 1 and the n vibrators generate the physical vibrations simultaneously at n different frequencies.
7 . The radio-controlled, two-way acoustic modem according to claim 6 wherein the n different frequencies are simultaneously received by the interrogator of the DFOS system.