A hose separation transmitter system includes a shock sensor and a transmitter
that are secured to the delivery hose. If the hose becomes disconnected, the shock
sensor will generate a shock signal when the hose falls to the ground and the transmitter
will respond to the shock signal by generating an encoded RF signal. A receiver
at the vehicle receives the RF signal from the transmitter, determines that a hose
disconnect has occurred, and automatically disables a fluid pump or closes a valve
to stop the flow of fluid. The shock sensor preferably uses a strip of piezoelectric
material. Related methods are also disclosed. For quick connect and disconnect,
the shock sensor and transmitter are preferably secured to the hose by a hook and
loop fabric material. The transmitter is immune to normal ambient vibration levels.
Related methods are also disclosed.
