Automatic Rescue System for Swimming Pools

An automatic rescue and lifting system for a swimming pool, comprising:

• (a) a large-area net (F) sized to cover an entire floor of the pool;
• (b) a first reversibly drivable shaft (Z-1) disposed along a first longitudinal wall of the pool and a second reversibly drivable shaft (Z-2) disposed along an opposing longitudinal wall of the pool, each shaft being driven at opposing ends by two geared motors (A-1, A-2;
• B-1, B-2) so as to rotate synchronously;
• (c) guide and deflection pulleys (X-1 to X-4) mounted on the shafts and on the pool floor and/or pool walls;
• (d) high-tensile traction members (N) guided by the pulleys and fixed to the net by clamps (G) such that rotation of the shafts moves the net synchronously or quasi-synchronously in a vertical direction between the pool floor and at least a water surface (W);
• (e) a sensor arrangement (S-1 to S-4) comprising at least one sensor selected from the group consisting of:
• pressure/weight sensors, motion/hydro-acoustic/ultrasonic sensors, and radio-transponder sensors (RFID, BLE, UWB);
• (f) a control unit configured (i) to activate all geared motors upon receipt of an emergency signal from the sensor arrangement and (ii) to monitor a permissible synchronization deviation between the first and second shafts and inhibit upward movement of the net when the deviation exceeds a preset threshold;
• and
• (g) a spring-applied, power-released mechanical or electromagnetic locking or braking device (L) configured to prevent unintended lowering of the net upon power failure or after the net reaches a target position.