A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.

An input device includes a display unit that displays an aerial image, and a detection unit that detects a user operation related to the aerial image. The display unit includes a light guide plate disposed between a half mirror and a retroreflective plate and a light source irradiating the light guide plate. The display unit displays the aerial image of a light diffusion surface formed on the light guide plate in response to incident light. When the user operation related to the aerial image is detected, the display unit turns off the light source to notify a user of input confirmation.

This invention discloses a braille plate for an elevator. The braille plate comprises a plurality of substrates, and a plurality of bump structures. In present invention, each substrate is formed on a body via crosslinking agent, and each of the bump structures is formed by at least one main layer. Furthermore, the body is an elevator decorative plate.

A data capture device for a building system has a housing in which a display device, an optical reading device, and a first reading device are arranged and which are communicatively connected to a control device arranged in the housing. The optical reading device is embodied to optically detect information from a first information carrier, wherein the optical reading device is arranged in such a way that light from the direction of the front side of the housing, which is accessible to a user, can be captured by an image sensor of the optical reading device. The first reading device has a first antenna in order to detect information from a second information carrier by means of radio communication, the first antenna comprising an air coil which has an inner space. The image sensor of the optical reading device is arranged entirely or partially in the inner space of the air coil.

A method for identifying an object, an optical sensing apparatus and a system are provided. A controller of the system drives multiple light sources of the optical sensing apparatus to emit the multiple light beams with different beam angles, controls a light sensor to sense the lights reflected by the object, and performs the method for identifying the object. In the method, the light sensor is used to sense a first light emitted by a first light source with a first beam angle reflected by the object, and sense an intensity of the reflected first light. The light sensor is also used to sense a second light emitted by a second light source with a second beam angle reflected by the object and sense another intensity of the reflected second light. Therefore, the object can be identified by integrating information of the intensities obtained by the light sensor.

A retrofit interface apparatus interfaces with a target device to provide the target device with touchless user input. The apparatus comprises: a touchless sensing system comprising one or more sensors responsive to touchless input made by a human user and for generating one or more corresponding sensor input signals; a controller connected to receive the one or more sensor input signals from the touchless sensing system and configured to generate, based on the one or more sensor input signals, a corresponding control signal; and the controller connectable to the target device to bypass a touch-based input of the target device and to provide the control signal as an input to an existing control system of the target device to thereby cause the control system of the target device to operate the target device based on the control signal.

A human-machine-interface formed as a landing operation panel or a landing information panel for an elevator installation has: an interaction unit (3) that responds to actuation by a passenger to generate input signals and/or to output output signals to be perceived by the passenger; a communication unit that transmits the input signals to an elevator and/or receives the output signals from the elevator controller; and a supply unit that supplies electrical energy to the interaction unit and the communication unit, the supply unit having an energy conversion unit and an electricity storage unit, wherein the energy conversion unit converts kinetic energy available in the immediate surroundings of the human-machine-interface into electrical energy, and wherein the electricity storage unit stores the converted electrical energy. The human-machine-interface operates with energy autonomy, i.e. without a supply cable to a central power supply.

An illustrative example embodiment of an elevator door interface monitor includes at least one hook having a portion that is configured to be situated across the interface and moveable responsive to contact with an item situated at least partially in the interface. An indicator provides an indication of an item in the interface based on movement of the hook responsive to contact with the item.

In an elevator operation panel, a base of a casing includes a back plate portion, a lateral plate portion, and a vertical plate portion. An outer surface of the lateral plate portion, which faces the exterior of the casing, and a vertical direction end surface of the vertical plate portion on the lateral plate portion side are disposed in an identical plane. An L-shaped slit is provided between the back plate portion and the lateral plate portion. The slit includes a rectilinear portion, and a. projecting portion that projects into the back plate portion. In a condition where the lateral plate portion is bent relative to the back plate portion, a surface of the lateral plate portion that faces the rectilinear portion overlaps a surface of the back plate portion on an opposite side to a wall.

A hover button sensor unit, comprising: a power supply circuit (5-1), a capacitive sensor, a capacitance-to-digital conversion circuit (3), a control module, an acousto-optic feedback control circuit (5-3), and a communication circuit (5-2); The capacitive sensor is a convex structural arrangement of a central electrode (1-1) and a peripheral electrode (1-2). The capacitance-to-digital conversion circuit (3) measures self-capacitance and mutual capacitance of the central electrode (1-1) and the peripheral electrode (1-2) after human finger approaching, to calculate and determine whether a finger enters the area range and its dwell time, so that the control module outputs a control logic signal of the button; detecting the proximity of the human finger to the effective hover trigger area range above a certain central electrode (1-1) by means of the button formed by the sensor unit, providing three-state response to the human finger entering the effective hover trigger area range above a certain central electrode (1-1) by the acousto-optic feedback control circuit (5-3); The above mentioned technical scheme is reasonable in structural design, which can effectively resist various interference, fully utilize a low-cost of capacitance detection and mature CDC chip technology and provide a commercialized technical solution which can be popularized for hygienic sensitivity.