The problem with current quick release systems is that the rider needs to operate them manually. However, when you are getting lofted by a sudden gust, there is no time to react manually. What is needed is a system that will operate automatically to depower the kite. An ideal system could operate during launching and landing times, but be made inoperative out in open water to permit jumping, etc.
I propose a system with a load cell tension sensor at the end of the kite line by the bar. The sensor would check line tension many times per second and feed the data to a system which could detect the "signature" of a dangerous event, such as a kite loop at launch time. For example, a load cell might put out an electronic signal proportional to the tension in the kite line. A cheap microprocessor with an analog-digital converter would convert the voltage signal into a digital signal, to be analysed inside the microprocessor. When a sustained pattern of voltage indicative of a "bad" event was output by the load cell, a pattern-matching program in the microprocessor would detect it. The microprocessor would then output a signal to a device which would depower the kite. One such device might be an electronicly-driven cutting device attached to the kite line. An electronic signal would detonate a small incendiary charge that would either burn the kite line or force a small knife-edge to cut the line. This would be a small, replaceable device something like an electronically-activated firecracker. It could be shielded with plastic casing so that all the incendiary stuff happens safely inside a plastic tube placed somewhere along one of the kite lines.
Of course, when a kite line is severed, the kite will depower, thus preventing the lofting.
An alternative sensor system might also / or instead monitor pressure on the rider's feet ... if the rider begins to lift off the ground, the presser his heels exert on the ground would drop, and the safety mechanism could be triggered.
The key is programming the pattern matching device in the microprocessor. This could be done easily by operating a kite with load cells monitoring line tension, and recording the results as the kite is put through various manoeuvers, preferably by an expert. The electronic patterns of various dangerous kite conditions could then be determined by examining the output of the sensors which was recorded while the expert put the kite into these conditions.
Anyone want to help build this device? I can do some of the microprocessor programming. There is a commercial device used by
parachutists for autodeploying reserve chutes that might be adaptable for cutting kite line .... the Cypres auto release system. We could use that, or make our own system....something like the electronic wire system used to ingite toy solid rocket motors could be adapted. The load cells would probably best be purchased from a commercial source.... there seems to be quite a few vendors out there.