System and use method for untethered trap brought to surface by remote control

Abstract

The invention is a system comprising a wire cage crustacean trap coupled to a remotely controlled subsystem operative to receive a control-coded acoustic signal and thereupon open an electrically controlled pneumatic valve allowing gas under pressure to be conveyed to a deflated bladder, such that the bladder inflates and brings the system to the surface. Backup systems will cause the valve to open when a preprogrammed time duration has elapsed and/or when a water leak is detected inside the remotely controlled subsystems water-tight container.

What is claimed is: 
     
         1 . A method of use claim comprising:
 connecting valve output port to inflatable buoyancy bladder;   allowing attached wire-cage trap and wire-cage enclosure to submerge;   sending a sound signal, underwater, that is an encoded control signal;   receiving said encoded control signal by a sound-to-electric transducer;   decoding said encoded control signal by a microcontrolled processing unit contained within said valve;   determining which response control signal to convey to electrically controlled valve; and   conveying said response signal to said electrically controlled valve.   
     
     
         2 . A method as in  claim 1  further comprising:
 conveying said response signal only to said electrically controlled valve wherein said response signal comprises identification data that matches said electrically controlled valve's identification data.