A handrail drive inverter for an escalator can include a memory configured to store instructions, a processor coupled to the memory, an input configured to receive a main speed control signal that corresponds to the speed of a main drive motor of the escalator, and an output configured to provide a handrail speed control signal for a handrail drive motor based on the instructions in the memory. The processor is configured to calculate a torque output of the handrail drive motor and determine the handrail speed control signal as a function of the torque output and a feedback of the handrail speed control signal constrained by at least one of an upper limit and a lower limit, the upper limit and the lower limit being determined from the main speed control signal.

A control method for a conveyor device, which is applicable to a control system comprising a control terminal and one or more control nodes, each of the control nodes is in communication connection with the control terminal. The method includes controlling, by the control node that receives an operation signal, a movable device associated with the control node to reach a conveyor device to be controlled, in response to the operation signal sent by a control terminal; and determining whether to control the conveyor device to be controlled according to the indication of the operation signal, based on sensed data from a sensing device regarding the condition of an object to be conveyed on the conveyor device to be controlled.

An arrangement, a people conveyor and/or an access gate system and a method for handling people conveyor and/or access gate system application programming interface requests, includes receiving a request through a primary people conveyor and/or access gate system application programming interface, determining the target system of the request, based on the identified target system of the request being a first provider people conveyor and/or access gate system, sending the request, e.g. without processing, to an application programming interface of the first provider people conveyor and/or access gate system, and based on the identified target system of the request being a second or further provider people conveyor and/or access gate system, processing the request and sending the processed request to an application programming interface of the second or further provider people conveyor and/or access gate system and/or a controlling interface of the second or further provider people conveyor and/or access gate system.

A passenger transport system and a method of operating the same are described. The passenger transport system includes a passenger conveying device, a control unit for controlling an operation of the passenger conveying device, and a disinfecting device for disinfecting a surface to be disinfected on the passenger conveying device. The disinfecting device includes a controller for controlling an operation of the disinfecting device. The control unit of the passenger transport system and the controller of the disinfection device are adapted in such a manner that status signals, which reflect information about a current operation, a current state, and/or a current configuration of the disinfection device, are sent from the controller to the control unit, and the control unit generates control signals taking into account received status signals and transmits them to the controller, wherein the controller controls the operation of the disinfection device taking into account received control signals.

Provided is a robot and method of controlling same, where the robot includes: a sensor; a driver; a memory storing an instruction; and a processor configured to execute the instruction to: identify, through the sensor, a height difference between a first stair and a second stair of an escalator, identify whether the robot is adjacent to a disembarkment area of the escalator based on the identified height difference, based on identifying that the robot is adjacent to the disembarkment area, identify, through the sensor, whether an object is located within a first distance of the robot in a movement direction of the escalator, and based on identifying the object located within the first distance of the robot in the movement direction of the escalator, control the driver to cause the robot to move on the escalator in a direction opposite to the movement direction of the escalator.

A safety control system includes: a plurality of safety switches connected in series to form a safety circuit; a plurality of wireless communication modules, each wireless communication module is associated with at least one of the safety switches, such that each of the wireless communication modules is configured to a signal indicating a state of a safety switch with which it is associated; and a controller including a control-site communication module, the control-site communication module configured to receive signals from the wireless communication modules, such that the controller obtains states of the safety switches based on the signals.