Abstract: Method and apparatus for fraud detection are provided. Sensor data from one or more acoustic wave sensors is received, where the one or more acoustic wave sensors transmit acoustic waves towards a set of items within a receptacle and receive reflected acoustic waves from the set of items. A model for the set of items within the receptacle is generated based on the sensor data. One or more features for the set of items are identified by analyzing the model. Checkout data is retrieved from one or more checkout devices. The one or more features for the set of items identified from the model are compared with the checkout data. An alert is generated upon detecting a discrepancy between the one or more features and the checkout data.

Abstract: A motion simulator includes a base plate, a motion platform, a first actuator, a base, a second actuator and a carrying platform. The motion platform is arranged on the base plate and movably connected to the base plate. The first actuator is arranged on the motion platform, movably connected to the motion platform. The base has a base body extending in a length direction and a base extension surface extending in a width direction. The first actuator is movably connected to the base extension surface. The second actuator is movably arranged on the base. The carrying platform is movably connected to the second actuator. Through a connection relationship between the base and the second actuator, the first actuator performs a left-right movement of the carrying platform relative to the motion platform and the second actuator performs the forward-backward movement of the carrying platform relative to the motion platform.

Abstract: A platform through-beam sensor device includes a transmitter module and a receiver module. A light emitted by a light-emitting element of the transmitter module is shaped into a light pattern range by a transmitter mask. A range of the light received by a light-receiving element of the receiver module is changed to a receiving range by a receiver mask. When the present invention is used, the transmitter module and the receiver module are respectively installed on two ends of a mechanical apparatus that move relative to each other. After determining a safety range of the relative movement of the two ends, a state that the light-receiving element falls into the light pattern range and the light-emitting element falls into the receiving range is set to be within the safety range. Upon exceeding the safety range, a flying platform is controlled to stop, thereby improving the safety of the flying platform.

Abstract: Systems and methods of conducting a bar code scan using an imaging-based bar code scan device are provided. In one exemplary embodiment, a method is performed by an imaging-based bar code device that includes processing circuitry, an optical lens assembly having an image sensor and an optical lens with a focused region at a certain distance in front of the optical lens along an optical axis of the optical lens, a plurality of light emitting elements configured proximate the optical lens and laterally offset from the optical axis. The method includes sending, by the processing circuitry, to each light emitting element, an indication to enable that light emitting element to project a light beam towards the optical axis in the focused region so that the light beams overlap when a target bar code is in the focused region and nonoverlap when a target bar code is outside the focused region.

Abstract: Disclosed herein is a joint structure of a telescopic cylinder, the joint structure including a telescopic unit, an extension unit and a first fixing unit, wherein the telescopic unit includes a first main body, a first combined structure and at least one first fixing structure; the extension unit includes a second main body, a second combined structure and at least one second fixing structure; the first combined structure is screwed to the second combined structure; and the first fixing unit includes at least one first fixing body, and the first fixing body is simultaneously arranged in the first fixing structure and the second fixing structure and interferes with the first main body and the second main body so as to prevent the first combined structure and the second combined structure from spiral movement.

Abstract: A support apparatus for holding a monitor is disclosed. The support apparatus can include an elongate arm pivotally connected to a support member and configured to couple to the monitor. The elongate arm can be pivotable within a range of motion between first and second mechanical stops, and can include a locking mechanism to lock the elongate arm into a selected pivoting position. The support member can extend between first and second side walls that define the mechanical stops. The support apparatus can include a mounting mechanism comprising receiving slots for securely holding the monitor. The mounting mechanism can allow the monitor to be mounted at various positions and orientations. The support apparatus allows the monitor to be positioned at various angles and heights, providing flexibility and customization in the placement of the monitor.

Abstract: A joint structure of a telescopic cylinder includes a telescopic unit, an extension unit and a first fixing unit. The telescopic unit includes a first main body, a first combined structure and at least one first fixing structure. The extension unit includes a second main body, a second combined structure and at least one second fixing structure. The first combined structure is screwed to the second combined structure. The first fixing unit includes at least one first fixing body, and the first fixing body is simultaneously arranged in the first fixing structure and the second fixing structure and interferes with the first main body and the second main body so as to prevent the first combined structure and the second combined structure from spiral movement.

Abstract: Systems and methods of conducting a bar code scan using an imaging-based bar code scan device are provided. In one exemplary embodiment, a method is performed by an imaging-based bar code device that includes processing circuitry, an optical lens assembly having an image sensor and an optical lens with a focused region at a certain distance in front of the optical lens along an optical axis of the optical lens, a plurality of light emitting elements configured proximate the optical lens and laterally offset from the optical axis. The method includes sending, by the processing circuitry, to each light emitting element, an indication to enable that light emitting element to project a light beam towards the optical axis in the focused region so that the light beams overlap when a target bar code is in the focused region and nonoverlap when a target bar code is outside the focused region.

Abstract: Disclosed herein is a joint structure of a telescopic cylinder, the joint structure including a telescopic unit, an extension unit and a first fixing unit, wherein the telescopic unit includes a first main body, a first combined structure and at least one first fixing structure; the extension unit includes a second main body, a second combined structure and at least one second fixing structure; the first combined structure is screwed to the second combined structure; and the first fixing unit includes at least one first fixing body, and the first fixing body is simultaneously arranged in the first fixing structure and the second fixing structure and interferes with the first main body and the second main body so as to prevent the first combined structure and the second combined structure from spiral movement.

Abstract: Systems and methods of conducting a bar code scan using an imaging-based bar code scan device are provided. In one exemplary embodiment, a method is performed by an imaging-based bar code device that includes processing circuitry, an optical lens assembly having an image sensor and an optical lens with a focused region at a certain distance in front of the optical lens along an optical axis of the optical lens, a plurality of light emitting elements configured proximate the optical lens and laterally offset from the optical axis. The method includes sending, by the processing circuitry, to each light emitting element, an indication to enable that light emitting element to project a light beam towards the optical axis in the focused region so that the light beams overlap when a target bar code is in the focused region and non-overlap when a target bar code is outside the focused region.

Abstract: The present disclosure provides a system and method for adjusting display brightness. The method includes determining a color of a bezel surrounding a display and automatically adjusting a brightness of the display based on the color of the bezel.

Abstract: Systems and methods of conducting a bar code scan using an imaging-based bar code scan device are provided. In one exemplary embodiment, a method is performed by an imaging-based bar code device that includes processing circuitry, an optical lens assembly having an image sensor and an optical lens with a focused region at a certain distance in front of the optical lens along an optical axis of the optical lens, a plurality of light emitting elements configured proximate the optical lens and laterally offset from the optical axis. The method includes sending, by the processing circuitry, to each light emitting element, an indication to enable that light emitting element to project a light beam towards the optical axis in the focused region so that the light beams overlap when a target bar code is in the focused region and non-overlap when a target bar code is outside the focused region.

Abstract: A motion simulator includes a base plate, a motion platform, a first actuator, a base, a second actuator and a carrying platform. The motion platform is arranged on the base plate and movably connected to the base plate. The first actuator is arranged on the motion platform, movably connected to the motion platform. The base has a base body extending in a length direction and a base extension surface extending in a width direction. The first actuator is movably connected to the base extension surface. The second actuator is movably arranged on the base. The carrying platform is movably connected to the second actuator. Through a connection relationship between the base and the second actuator, the first actuator performs a left-right movement of the carrying platform relative to the motion platform and the second actuator performs the forward-backward movement of the carrying platform relative to the motion platform.

Abstract: Systems and methods for managing and facilitating combined purchase of items by multiple customers are disclosed. According to an aspect, a method includes receiving, from a computing device, notification by a first user to purchase one or more items. The method also includes determining whether to match the first user with a second user for combined purchase of the one or more items. Further, the method includes associating the first user with the second user for combined purchase of the one or more items in response to determining that the first user matches the second user.

Abstract: A projecting device includes an intermediate optical system arranged along an optical axis and a reflective optical system including a reflecting component and at least one lens. The at least one lens having a first and a second optical surfaces which are opposite is between the reflecting component and the intermediate optical system; the second optical surface faces the intermediate optical system. After piercing the intermediate optical system, the image beam enters the at least one lens through the second optical surface, and enters a reflecting surface of the reflecting component through the first optical surface; after reflected by the reflecting surface, the image beam pierces the at least one lens, leaves the at least one lens from the second optical surface, and is projected toward the imaging plane. The effective diameters of the reflecting component and the at least one lens are on one side of the optical axis.

Abstract: A projecting device includes an intermediate optical system arranged along an optical axis and a reflective optical system including a reflecting component and at least one lens. The at least one lens having a first and a second optical surfaces which are opposite is between the reflecting component and the intermediate optical system; the second optical surface faces the intermediate optical system. After piercing the intermediate optical system, the image beam enters the at least one lens through the second optical surface, and enters a reflecting surface of the reflecting component through the first optical surface; after reflected by the reflecting surface, the image beam pierces the at least one lens, leaves the at least one lens from the second optical surface, and is projected toward the imaging plane. The effective diameters of the reflecting component and the at least one lens are on one side of the optical axis.

Abstract: Systems and methods for managing and facilitating combined purchase of items by multiple customers are disclosed. According to an aspect, a method includes receiving, from a computing device, notification by a first user to purchase one or more items. The method also includes determining whether to match the first user with a second user for combined purchase of the one or more items. Further, the method includes associating the first user with the second user for combined purchase of the one or more items in response to determining that the first user matches the second user.

Abstract: Embodiments include a method and associated point-of-sale (POS) terminals. The method comprises receiving a receptacle into a stationary position within a scan zone arranged proximately to a surface. The receptacle contains one or more items. The method further comprises acquiring, using a first visual sensor having a predefined disposition relative to the surface, first image information that includes a first view and at least a second view of the scan zone. The second view is provided via a first mirror of one or more mirrors disposed near the surface and arranged around the scan zone. The second view includes a view of the one or more items relative to a surface of the receptacle. The method further comprises identifying, using image analysis of the first image information, the one or more items.

Abstract: A projector device includes an illumination module and an imaging module. The imaging module is connected to the illumination module and includes a housing, a relay optical system, and a projection optical system. The housing has a first annular receiving groove and a second annular receiving groove. The first annular receiving groove is closer to the illumination module than the second annular receiving groove. A center axis line of the first annular receiving groove and a center axis line of the second annular receiving groove are on the same axis line. The relay optical system includes a lens received in the first annular receiving groove. The projection optical system includes a lens and a reflecting mirror received in the second annular receiving groove. Mirror centers of the lenses and a mirror center the reflecting mirror are located on the same axis line.

Abstract: A projector device includes an illumination module and an imaging module. The imaging module is connected to the illumination module and includes a housing, a relay optical system, and a projection optical system. The housing has a first annular receiving groove and a second annular receiving groove. The first annular receiving groove is closer to the illumination module than the second annular receiving groove. A center axis line of the first annular receiving groove and a center axis line of the second annular receiving groove are on the same axis line. The relay optical system includes a lens received in the first annular receiving groove. The projection optical system includes a lens and a reflecting mirror received in the second annular receiving groove. Mirror centers of the lenses and a mirror center the reflecting mirror are located on the same axis line.