Electronics, electrotechnics

Cheap regulator with very high linearity.
On both input and output and in whole regulation range 0% to 100%, without filtration and with very low losses.
One prototype.

Cheap heavy-discharge tester.
For testing backup power sources in telecommunications, networks, electric invalid chairs, cars, electromobiles, up to 100V, with internet communication and data evaluation.
One prototype.

Radio beacon for localization of a place on the ground towards underground and vice versa.
Device for localization of an underground place towards place on the ground contains transmitter with modulated frequency. The transmitter is equipped with a foldable antenna made of coil. The device also contains receiver with high selectivity realised with a multi-stage filter. The device was tested for 3 years in Czech Republic.
One prototype.

Ratio heat meters for heaters.
With automatic and wireless data collection.
Prototype in development.

Universal room size measurement device, which draws the results on a PC.
Device for surveying any room, also can draw the results on a PC IBM compatible, for printing and further graphic processing. The device includes memory for data storage, laser distance meter, inclinometers, position sensors, electronic compass, altimeter and GPS. The device is very easy to operate. In a closed room the operator stands in a place and points the device to the ceiling, floor, walls and pushes the button on the device. This process is then repeated according to the room complexity. After the measurement, the operator connects the device to a PC and the software draws the rooms, with their dimensions, latitude, longitude, orientation, altitude, depth and other information. The device was tuned for two years in Czech Republic in underground cave systems, where the most complex room shapes are expected. Including the roughness of the walls, GPS signal shielding, etc.
Two prototypes available.

Alarm for truck drivers.
Device, that warns truck driver, that the automobile in front of him has moved for more than three meters. The device can be used by the truck drivers for ensuring, that the other drivers don't jump the queue, if the driver falls asleep during waiting. Especially useful on the country borders, but also during highway accidents, etc.
Prototype in development.