by We did come up with a working prototype for the auto trailer lock That was controlled by either your people net or your qc.
It came down to two prototypes. One that was in the hinge. The second one was on the doors where they come together when you close them.
Unfortunately, with the ages of the trailers that are out here on the road now. the only one that held true for the entire leg of trial. Was the hinge design lock!
When a trailer gets older, it has hundreds of thousands or even millions of miles on it. The rear doors start to move. They start to loosen. They start to do weird things. The one thing that stays true 98% of the time is the hinge. ( unless it’s a swift trailer! Then those are consistently broken off….. )
So to answer your question, our hinge lock works great. But like every theft deterrent system, it can be breached. The easiest way was you had to cut off all three to 4+ door hinges…..
The other way was to cut a hole in the side of the trailer……
So I’m going to say our r&d paid off and we got a good system!