Abstract: A particle detection device includes a light source, a front light assembly, a main lens barrel, a flow chamber assembly, and a rear light assembly. The front light assembly includes a single front light lens barrel, the single front light lens barrel includes a front light channel, and the main lens barrel has a main channel. The cross section of the main channel is circular, and the single front light lens barrel is at least partially located in the main channel so as to be nested in and connected to the main lens barrel; or the cross section of the front light channel is circular, and the main lens barrel is partially located in the front light channel so as to be nested in and connected to the single front light lens barrel. The front light lens barrel is nested in and connected to the main lens barrel.

Abstract: A scanning system and method for controlling an aiming light source (7), comprising: an image sensor (4), which sequentially exposes a pixel array through a rolling shutter to acquire an image of the target, the pixel array includes effective pixels (5) and non-imaging pixels (6), the effective pixels (5) are pixels that are actually used for image decoding, and the non-imaging pixels (6) are pixels that are not actually used for image decoding; an aiming light source (7) for projecting an aiming pattern (8) to aim at a target; a control unit (12) for controlling the image sensor (4) and the aiming light source (7), so that the aiming light source (7) is in turned off state during the exposure time of the effective pixel (5), and the aiming light source (7) is turned on during at least part of the exposure time of the non-imaging pixels (6).

Abstract: The present application provides an optical information collector and a method thereof. The optical information collector includes an image sensor, configured to collect image data of optical information; a decoding unit, configured to decode the image data based on a preset decoding algorithm; a central processor, configured to control the image sensor to collect the image data and control the decoding unit to decode the image data upon triggering. Once triggered, the central processor issues an instruction to discard N frames of image data in a specific frame number, where the N frames of image data in a specific frame number is image data that was previously collected and remaining in the optical information collector upon triggering, which can prevent residual image data from being decoded and outputted, causing a decoding error, thereby improving a decoding efficiency.

Abstract: The present disclosure provides a RFID terminal and a method of using the same. The RFID terminal includes: a directional antenna module configured to directionally receive a signal transmitted by an electronic tag on an item in a region to be read; a camera configured to collect an image of the region to be read; and a control unit configured to screen information of a target item according to the image of the region to be read captured by the camera.

Abstract: The present disclosure provides a camping trolley, including a front trolley frame and a rear trolley frame, an upper folding frame and a lower folding frame which are opposite to each other at top and bottom are connected between two sides of each of the front trolley frame and the rear trolley frame; the upper folding frame includes an upper bending frame connected to the front trolley frame; the lower folding frame connected to the front trolley frame; each of the upper bending frame and the lower bending frame includes a front frame section and a rear frame section; the front frame section is connected to the front trolley frame; a space is reserved between the front and the rear frame section, and the front and the rear frame section are rotatably connected through a bending assembly; and the upper folding frame is sleeved with elastic cloth.

Abstract: A radio frequency identification method and a reader, the reader comprises a camera, a display screen, a distance sensor, an antenna unit and a processor, the camera is configured to collect an image of a target electronic tag, and the display screen is configured to display an image of the target electronic tag, the distance sensor is configured to measure the distance d between the target electronic tag and the reader, and the antenna unit is configured to receive a radio frequency signal emitted by the target electronic tag. When the antenna unit only receives a radio frequency signal transmitted by one electronic tag, the reader reads the electronic tag; when the antenna unit receives radio frequency signals transmitted by a plurality of electronic tags, the processor filters out the target electronic tag according to the matching degree between the distance and a phase value of the radio frequency signal.

Abstract: A radio frequency identification method and a reader, the reader comprises a camera, a display screen, a distance sensor, an antenna unit and a processor, the camera is configured to collect an image of a target electronic tag, and the display screen is configured to display an image of the target electronic tag, the distance sensor is configured to measure the distance d between the target electronic tag and the reader, and the antenna unit is configured to receive a radio frequency signal emitted by the target electronic tag. When the antenna unit only receives a radio frequency signal transmitted by one electronic tag, the reader reads the electronic tag; when the antenna unit receives radio frequency signals transmitted by a plurality of electronic tags, the processor filters out the target electronic tag according to the matching degree between the distance and a phase value of the radio frequency signal.

Abstract: This application relates to the field of electronic device technologies, and specifically, to a semiconductor device and a preparation method thereof. The semiconductor device includes: a substrate; an epitaxial structure disposed on the substrate; a passivation layer disposed on the epitaxial structure; and an ohmic contact electrode disposed in parallel with the passivation layer on the epitaxial structure, where the ohmic contact electrode includes a non-contact layer and a contact layer that are disposed in a laminated manner, the contact layer is in contact with the epitaxial structure, and composition elements of the contact layer include a germanium element and a tantalum element. The semiconductor device has a low ohmic contact resistance.

Abstract: The present application provides an optical information collector and a method thereof. The optical information collector includes an image sensor, configured to collect image data of optical information; a decoding unit, configured to decode the image data based on a preset decoding algorithm; a central processor, configured to control the image sensor to collect the image data and control the decoding unit to decode the image data upon triggering. Once triggered, the central processor issues an instruction to discard N frames of image data in a specific frame number, where the N frames of image data in a specific frame number is image data that was previously collected and remaining in the optical information collector upon triggering, which can prevent residual image data from being decoded and outputted, causing a decoding error, thereby improving a decoding efficiency.

Abstract: An optical detection system, a blood cell analyzer and a platelet detection method are provided. The optical detection system includes: an optical subsystem, a flow chamber and a first detector; the optical subsystem includes a laser, a front optical assembly including an optical isolator, and a rear optical assembly including a blocking diaphragm. The laser is configured to emit a laser beam; the front optical assembly is configured to perform front optical treatment; the rear optical assembly is disposed downstream of the flow chamber in the propagation direction of the laser beam, and is configured to perform rear optical treatment on the scattered light and the laser beam converged at the blocking diaphragm; and the optical isolator is configured to isolate reflected light that is generated when the laser beam passes through the flow chamber.

Abstract: An optical detection system, a blood cell analyzer and a platelet detection method are provided. The optical detection system includes: an optical subsystem, a flow chamber and a first detector; the optical subsystem includes a laser, a front optical assembly including an optical isolator, and a rear optical assembly including a blocking diaphragm. The laser is configured to emit a laser beam; the front optical assembly is configured to perform front optical treatment; the rear optical assembly is disposed downstream of the flow chamber in the propagation direction of the laser beam, and is configured to perform rear optical treatment on the scattered light and the laser beam converged at the blocking diaphragm; and the optical isolator is configured to isolate reflected light that is generated when the laser beam passes through the flow chamber.

Abstract: The present disclosure provides a RFID terminal and a method of using the same. The RFID terminal includes: a directional antenna module configured to directionally receive a signal transmitted by an electronic tag on an item in a region to be read; a camera configured to collect an image of the region to be read; and a control unit configured to screen information of a target item according to the image of the region to be read captured by the camera.

Abstract: Techniques to recover from authentication failure are disclosed. During authentication of a user equipment (UE) with a public land mobile network (PLMN), the UE may receive an AUTHENTICATION REJECT with an extensible authentication protocol (EAP)-failure message. When this occurs, instead of invalidating the universal subscriber identity module (USIM) of the UE, the UE can search for other PLMNs that can potentially pass the authentication challenge. If one is found, the UE can register with the found PLMN.

Abstract: Aspects of the present disclosure provide techniques for improving emergency calls by a user equipment (UE) in certain scenarios. The techniques generally include receiving a trigger for the UE to perform a circuit switched (CS) emergency call via a first subscriber identity module (SIM) that is serving as a default data subscriber (DDS), attempting the CS emergency call via the first SIM, detecting a failure to perform the CS emergency call via the first SIM, and re-attempting the CS emergency call via a second SIM, in response to the detection.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish a first wireless connection associated with a first subscription using a first radio access technology, and may establish a second wireless connection associated with a second subscription using a second radio access technology. The UE may perform a call over the second wireless connection, and identify a loss of the first wireless connection based on performing the call over the second wireless connection. The UE may perform a network discovery procedure associated with the first subscription using the first radio access technology based on the loss of the first wireless connection and a termination of the call over the second wireless connection.

Abstract: A scanning system and method for controlling an aiming light source (7), comprising: an image sensor (4), which sequentially exposes a pixel array through a rolling shutter to acquire an image of the target, the pixel array includes effective pixels (5) and non-imaging pixels (6), the effective pixels (5) are pixels that are actually used for image decoding, and the non-imaging pixels (6) are pixels that are not actually used for image decoding; an aiming light source (7) for projecting an aiming pattern (8) to aim at a target; a control unit (12) for controlling the image sensor (4) and the aiming light source (7), so that the aiming light source (7) is in turned off state during the exposure time of the effective pixel (5), and the aiming light source (7) is turned on during at least part of the exposure time of the non-imaging pixels (6).

Abstract: The present disclosure provides a RFID terminal and a method of using the same. The RFID terminal includes: a directional antenna module configured to directionally receive a signal transmitted by an electronic tag on an item in a region to be read; a camera configured to collect an image of the region to be read; and a control unit configured to screen information of a target item according to the image of the region to be read captured by the camera.

Abstract: The present disclosure provides a casing structure of an electronic device including a first casing and a second casing, the second casing is detachably installed on the first casing, the second casing is provided with an approximately square main body part, the main body part is provided with a first end and a second end which are opposite, and the first end can be supported on the first casing to rotate so that the first casing and the second casing are in a relatively open state or buckled state, the casing structure of an electronic device can include at least one limiting part and at least one butt joint part, wherein the at least one limiting part extends downwards from the middle of the main body part and is located between the first end and the second end.