An elevator system having a hoistway having a bottom landing with landing doors. An elevator car is in the hoistway, and a safety chain is coupled to the car and is in an open-state to stop the car and otherwise in an intact-state. A first sensor wirelessly transmits a first signal when the car is at the bottom landing, and a second sensor transmits a second signal when the doors are open. The system includes a control circuit including a first control element that receives the first signal indicating the car is at the bottom landing and a second control element that receives the second signal indicating the landing doors are open, and the control circuit changes state upon receipt of the signals, and the safety chain transitions to the open-state from the intact state when the control circuit changes state.

An elevator system having an elevator car, a controller operationally coupled to the elevator car, and a communication device in communication with the controller. The controller is configured to execute a program, upon determining the occurrence of an alert condition related to the elevator car while a passenger or mechanic is trapped within the elevator car, to thereby communicate with the passenger or mechanic utilizing the communication device.

A method of detecting water within a pit of an elevator shaft including: detecting water within a pit of an elevator shaft using a water sensor; wirelessly transmitting a notification to a controller; and transmitting the notification to a computing device.

The invention relates to a lifting system, preferably a platform lift, open or closed, for transporting a person or an object from a first level to a second level, wherein the lifting system comprises an underpan positioned at a bottom surface of a platform, wherein said underpan ensures that no person or objects a present in the area under the platform while the platform is moving up or down, and said underpan is being movably mounted on the bottom surface of the platform by at least one hook-like protrusion, and wherein said hook-like protrusion of the underpan engages with a protruding profile of the platform. Furthermore, the invention relates to a method for stopping the movement of a lifting system. Moreover, the invention relates to a computer program.

An elevator according to an aspect of the present invention includes a car speed detection device that measures car speed, an emergency braking device that comes into press contact with a guiderail and emergently stops a car when the car speed exceeds a threshold, an electric actuating unit that electrically actuates the emergency braking device, a battery that supplies electric power when commercial power supply is interrupted, and a safety control unit that monitors abnormality of the elevator and controls operation of the electric actuating unit. The safety control unit measures remaining power of the battery when the electric power is supplied from the battery, determines operation propriety of the emergency braking device at commercial power supply restoration time based on transition of battery remaining power, and controls operation of the electric actuating unit at the commercial power supply restoration time based on content of the determination.

An arrangement for providing a power reset to a device of an elevator system, and an elevator system. The arrangement includes a power reset unit having a power reset device arranged to interrupt and connect electric power to the device, and a wireless communication device arranged to control the power reset device for interrupting and connecting electric power, and configured to be wirelessly connected by a user device by using a wireless communication technology and to receive a power reset signal from the user device. The power reset unit is integrated into or arranged in contact with the device, or connected electrically between the device and the electric power supply line.

Embodiments are directed to an intelligent elevator control system utilizing wireless user location awareness. An embodiment of non-transitory computer-readable storage mediums includes instructions for detecting a mobile device of a user at a first wireless access point for an elevator system; requesting authentication of the user for use of the elevator system from an authentication server; upon receiving authentication for the user from the authentication server, the authentication identification of a first authorized destinations for the user, calling, by an elevator control, a first elevator for the user; and directing the first elevator to the first authorized destination.