Abstract: A proximity sensor including a structure suspending at least one lens above a circuit board, light emitters operable to project light beams through the lens along a common projection plane, light detectors operable to detect amounts of light arriving through the lens at the detector, wherein an object in the projection plane reflects light from an emitter to one or more of the detectors, and wherein each emitter-detector pair, including one of the emitters and one of the detectors, when synchronously activated, is expected to generate a greater detection signal at the activated detector than the other detectors, were they to be synchronously activated with any of the emitters, when the object is located at a specific 2D location in the projection plane corresponding to the emitter-detector pair, and a processor identifying gestures performed by the object based on amounts of light detected by the detector of each emitter-detector pair.

Abstract: Novel tools and techniques for monitoring railway track geometry. In one aspect, some such tools and techniques can determine a location of a platform along a railway, capture one or more images of the railway, and/or analyze the rail configuration at that point. In another aspect, some solutions might employ photogrammetric techniques to analyze the rail configuration and thereafter store data about the rail configuration, perhaps correlated with the location of the images, in a data store.

Abstract: Novel tools and techniques for monitoring railway track geometry. In one aspect, some such tools and techniques can determine a location of a platform along a railway, capture one or more images of the railway, and/or analyze the rail configuration at that point. In another aspect, some solutions might employ photogrammetric techniques to analyze the rail configuration and thereafter store data about the rail configuration, perhaps correlated with the location of the images, in a data store.

Abstract: A working machine which is intended for demolishing and excavating work comprises a chassis, an upper part carried by said chassis and arranged for rotational movement relative thereto about a vertical axis, and an arm arrangement carried by the upper part and including a jib structure which is connected at one end thereof to the upper part and the other end of which carries, via an intermediate arm, a fitting for a tool, such as an excavator bucket, a chiseling device or like tool. The jib structure and the intermediate arm are connected to the upper part and to each other respectively via pivots and can be pivoted in a vertical plane by means of first and second pressure piston-cylinder devices active between the upper part and the jib structure and between the jib structure and the intermediate arm respectively. The jib structure is divided into a first, short jib section which is pivotally connected to the upper part, and a second, longer jib section which is pivotally connected to the first jib section.