Automatic garage door system, has transmitter changing from secondary energy-saving state to principal state and sending signal to receiver, and blocking unit blocking movement of door if receiver does not receive signals within time

The system has a radio frequency transmitter (3) for transmitting a state of a pressure sensor or safety strip (2) located at a moving end of an automatic door (1) to a fixed radio frequency receiver (4) that is connected to a motor control device. The receiver sends a command signal to the transmitter according to the sensor state so that the transmitter changes from a secondary energy-saving state to a principal state and sends a check signal to the receiver. A blocking unit blocks movement of the door if the receiver does not receive the check signals within a predetermined time. An independent claim is also included for a process for operating an automatic door system. Automatic door system with a safety strip comprising: - an automatic door equipped with a motor, - a safety strip located at one moving end portion of the door, - at least one radio frequency transmitter device located in the moving part of the door, - a fixed radio frequency receiver, - a motor control device connected to the fixed radio frequency receiver, characterised in that: - the transmitter has means to pass from a secondary state of reduced energy consumption or dormant state, a radio frequency receiver and means to pass from the secondary state to a principal state, - the fixed receiver has a fixed radio frequency transmitter, means to require the transmitter or transmitters to send a state signal and door movement blocking means depending upon the state of the transmitter or transmitters. (Machine-translation by Google Translate, not legally binding) Sistema de puerta automática con banda de seguridad y procedimiento que ejecuta dicho sistema. Sistema de puerta automática con banda de seguridad, que comprende: - una puerta automática dotada de un motor; - una banda de seguridad situado en un extremo móvil de la puerta; - al menos un dispositivo emisor de radiofrecuencia, situado en una parte móvil de la puerta; - un receptor fijo de radiofrecuencia; - un dispositivo de control del motor conectado al receptor fijo de radiofrecuencia; caracterizado porque: - el emisor dispone de medios para pasar a un estado secundario de menor consumo de energía o estado durmiente, de un receptor de radiofrecuencia y de medios para pasar del estado secundario a un estado principal; - el receptor fijo dispone de un emisor fijo de radiofrecuencia, de medios para requerir del emisor o emisores un envío de señal de estado y de medios de bloqueo en función del estado del emisor o emisores.