Abstract: A system for obstacle detection adapted to a self-guiding machine is provided. The system includes a controller, a linear light source and a light sensor. The linear light source and the light sensor are set apart at a distance. When the linear light source emits an indicator light being a vertical linear light projected onto a path the self-guiding machine travels toward, the light sensor senses the indicator light. The vertical linear light is segmented into a first segment projected to a ground and a second segment projected to a floating obstacle when the self-guiding machine approaches the floating obstacle with a height from the ground and the indicator light is projected to the floating obstacle, in which the second segment of the light sensed by the light sensor is determined as the floating obstacle in front of the self-guiding machine.

Abstract: An electronic device may utilize various methods or systems to determine whether the electronic device is indoors or outdoors. The electronic device transmits wireless signals (e.g., radio detection and ranging (RADAR) signals). The electronic device receives reflections of the wireless signals. Using these received reflections of the wireless signals, the electronic device determines whether a power amplitude of the reflections is greater than or equal to a threshold value. In response to a determination that the power amplitude is not greater than or equal to the threshold value, the electronic device operates in an outdoor mode or an indoor mode.

Abstract: A server includes a chassis, an air duct, a sensing module and a board management controller. The air duct is disposed in the chassis. The sensing module is disposed in the chassis. The sensing module senses whether the air duct is correctly installed. The board management controller is disposed in the chassis and coupled to the sensing module. When the air duct is not correctly installed, the sensing module notifies the board management controller to generate a warning message.

Abstract: A display panel, comprising a first insulating structural layer, a first crack detection line, a second insulating structural layer and a second crack detection line which are sequentially arranged on a substrate, wherein the first crack detection line and the second crack detection line are both located in a peripheral area and are arranged around a display area, one end of the first crack detection line is configured to receive a detection signal, and the other end of the first crack detection line is configured to output a first output signal, and one end of the second crack detection line is configured to receive a detection signal and the other end of the second crack detection line is configured to output a second output signal.

Abstract: A positioning system and a positioning method based on radio frequency identification techniques (RFID) are provided. The positioning system includes in-vehicle devices, RFID readers and a server. The in-vehicle devices each includes a positioning device, an image capturing device and an image recognition module. The positioning device obtains a positioning location. The image capturing device captures a driving image. The image recognition module identifies adjacent vehicles, adjacent license plate information, and road attributes, and calculates relative location information. Each of the RFID readers reads a vehicle tag of one of the vehicles passing by, so as to mark a reference vehicle and generate reference vehicle information. A positioning adjustment module of the server determines whether the target vehicle is a reference vehicle, has been the reference vehicle or is a non-reference vehicle, and adjusts the positioning location of the target vehicle in different ways, accordingly.

Abstract: A microelectronic package includes a substrate having a first surface. A microelectronic element overlies the first surface. Electrically conductive elements are exposed at the first surface of the substrate, at least some of which are electrically connected to the microelectronic element. The package includes wire bonds having bases bonded to respective ones of the conductive elements and ends remote from the substrate and remote from the bases. The ends of the wire bonds are defined on tips of the wire bonds, and the wire bonds define respective first diameters between the bases and the tips thereof. The tips have at least one dimension that is smaller than the respective first diameters of the wire bonds. A dielectric encapsulation layer covers portions of the wire bonds, and unencapsulated portions of the wire bonds are defined by portions of the wire bonds, including the ends, are uncovered by the encapsulation layer.

Abstract: The present disclosure relates to wearable devices field, and provides a user interface display method and apparatus, a device, and a storage medium. The method includes: displaying (301), by a first system when a first system is in an awake state and a second system is in a sleep state, a first user interface; drawing and displaying (302), by the first system, a second user interface in response to a system switching instruction, the second user interface being a user interface of the second system; and displaying (303), by the second system, the second user interface in response to completion of drawing of the second user interface by the second system. Displaying the second user interface by the first system can improve the start-up speed of system switching visually, and reduce the display delay for the second system to display the second user interface in the system switching process.

Abstract: A self-heterodyne phase-sensitive optical time domain reflectometry (?-OTDR) system with a free multi-spatial resolution includes a narrow linewidth laser source, a 1×3 fiber-optic coupler, three acousto-optic modulators (AGMs), a 3×1 fiber-optic coupler, two time-delay fibers, an erbium-doped fiber amplifier (EDFA), a circulator, a photodetector, an electrical amplifier, three filters, a data acquisition card, a pulse signal generator, and a driver module. A plurality of acousto-optic modulators using the same driver are used to couple probe light with different pulse intervals and different frequency shifts and then inject the probe light into a fiber, such that a self-heterodyne detection structure with a multi-spatial resolution is implemented, which suppressed optical background noise such as coherent fading noise, phase noise introduced by a frequency drift of a light source, and pseudo-random noise (PRN).

Abstract: Apparatuses relating to a microelectronic package are disclosed. In one such apparatus, a substrate has first contacts on an upper surface thereof. A microelectronic die has a lower surface facing the upper surface of the substrate and having second contacts on an upper surface of the microelectronic die. Wire bonds have bases joined to the first contacts and have edge surfaces between the bases and corresponding end surfaces. A first portion of the wire bonds are interconnected between a first portion of the first contacts and the second contacts. The end surfaces of a second portion of the wire bonds are above the upper surface of the microelectronic die. A dielectric layer is above the upper surface of the substrate and between the wire bonds. The second portion of the wire bonds have uppermost portions thereof bent over to be parallel with an upper surface of the dielectric layer.

Abstract: A display device for showing a court line is provided. The court line is adapted to be shown on an indoor field. The display device includes field line sets disposed on a predetermined field. The field line sets have marker lines, and two or more of the marker lines overlap with each other. Each marker line includes a thin transparent body. The thin transparent body includes a protective film, a conductive layer, a light-emitting layer, an insulating layer, and an electrode layer. The light-emitting layer is made of a material including an electrochromic material. Each marker line in each field line set has an independent circuit loop. Thus, by energizing the light-emitting layer of the desired marker lines to make it emit light, the desired court lines will be shown correspondingly, thus avoiding the problem of causing users to be confused among multiple sets of court lines.

Abstract: An electronic device and a knob module thereof are provided. The knob module includes a circuit board, a rotary encoder, a light guide structure, a plurality of light emitting units, and a rotation cover. The rotary encoder is disposed on the circuit board. The light guide structure is disposed on the circuit board. The light guide structure includes a light guide ring and an annular light guide wall. The light guide ring surrounds the rotary encoder. The annular light guide wall extends downward from the light guide ring to abut against the circuit board. The plurality of light emitting units is disposed on the circuit board and located between the annular light guide wall and the rotary encoder for emitting light toward the annular light guide wall. The rotation cover is disposed on the rotary encoder.

Abstract: The invention discloses an underwater umbilical cable which is capable of temperature and vibration measuring and three-dimensional shape reconstruction, wherein underwater umbilical cable is used to connect underwater equipment and aquatic equipment; the underwater umbilical cable comprises an outer sheath, armored steel wires, an inner sheath, a power cable, a communication optical cable, a steel pipe, three strain measuring optical fibers, three temperature measuring optical fibers, a distributed optical fiber strain interrogator, a distributed optical fiber temperature interrogator and a processor. The invention can collect the operation status data of the umbilical cable for a long time. The collected data is highly objective, can truly reflect the real-time operation status of the umbilical cables, and plays an important role in guaranteeing the long-term submarine oil and gas exploitation.

Abstract: A photovoltaic junction box includes a box body, an electrical assembly and a fixing member is provided. The box body having an accommodating portion and a fixing portion; the accommodating portion includes an accommodating cavity; the fixing portion includes a fixing groove, a first wire groove, a first concave groove and a first fixing column; the accommodating groove and the fixing grooves communicate with each other, the electrical assembly is arranged in the accommodating cavity; the fixing member engages with the fixing groove; the first wire groove corresponds to the second wire groove. One end of the cable is connected to the electrical assembly through the first wire groove and the second wire groove, and the first fixing column and the second fixing column are against the surface of the cable.

Abstract: A method for system switching, a wearable device, and a storage medium are provided. The method is performed by a wearable device at least equipped with a first processor and a second processor. The second processor has higher power consumption than the first processor. The first processor is configured to run a first system, and the second processor is configured to run a second system. The method includes the following. A first event is processed with the first system when the second processor is in a dormant state. In response to a second event being triggered and the first processor failing to meet a processing capacity required for the second event, the second processor is switched to a wake-up state, and the second event is processed with the second system.

Abstract: A self-heterodyne phase-sensitive optical time domain reflectometry (?-OTDR) system with a free multi-spatial resolution includes a narrow linewidth laser source, a 1×3 fiber-optic coupler, three acousto-optic modulators (AOMs), a 3×1 fiber-optic coupler, two time-delay fibers, an erbium-doped fiber amplifier (EDFA), a circulator, a photodetector, an electrical amplifier, three filters, a data acquisition card, a pulse signal generator, and a driver module. A plurality of acousto-optic modulators using the same driver are used to couple probe light with different pulse intervals and different frequency shifts and then inject the probe light into a fiber, such that a self-heterodyne detection structure with a multi-spatial resolution is implemented, which suppressed optical background noise such as coherent fading noise, phase noise introduced by a frequency drift of a light source, and pseudo-random noise (PRN).

Abstract: A microelectronic package includes a substrate having a first surface. A microelectronic element overlies the first surface. Electrically conductive elements are exposed at the first surface of the substrate, at least some of which are electrically connected to the microelectronic element. The package includes wire bonds having bases bonded to respective ones of the conductive elements and ends remote from the substrate and remote from the bases. The ends of the wire bonds are defined on tips of the wire bonds, and the wire bonds define respective first diameters between the bases and the tips thereof. The tips have at least one dimension that is smaller than the respective first diameters of the wire bonds. A dielectric encapsulation layer covers portions of the wire bonds, and unencapsulated portions of the wire bonds are defined by portions of the wire bonds, including the ends, are uncovered by the encapsulation layer.

Abstract: The disclosure provides an electronic device including a housing, a light-emitting element and a light diffusion structure. The housing includes a first light-transmitting hole and a second light-transmitting hole. The light-emitting element is disposed in the housing, and is aligned with the first light-transmitting hole. The light diffusion structure includes a first light diffusion layer and a second light diffusion layer. The first light diffusion layer is disposed between the housing and the light-emitting element, and comprises a first semi-transparent region and a first light-shielding region. The first semi-transparent region corresponds to the first light-transmitting hole, and the first light-shielding region surrounds the first semi-transparent region. The second light diffusion layer is disposed between the housing and the light-emitting element, and comprises a second semi-transparent region and a second light-shielding region.

Abstract: Disclosed are a method and system for overlay error compensation and a storage medium. The method includes that N wafer groups are provided, wherein each wafer group includes M wafers each including a present and previous layer, and N and M are positive integers greater than or equal to 2; for each wafer, a first overlay error is determined according to device structures of the present and previous layers, and a photoetching compensation value is calculated according to the first overlay error; for each wafer group, a first average compensation value is calculated according to photoetching compensation values; a second average compensation value of the N wafer groups is calculated according to first average compensation values; and in response to that the second average compensation value is within a preset range, the second average compensation value is fed to a batch control system to compensate an (N+1)th wafer group.

Abstract: The invention discloses an underwater umbilical cable which is capable of temperature and vibration measuring and three-dimensional shape reconstruction, wherein underwater umbilical cable is used to connect underwater equipment and aquatic equipment; the underwater umbilical cable comprises an outer sheath, armored steel wires, an inner sheath, a power cable, a communication optical cable, a steel pipe, three strain measuring optical fibers, three temperature measuring optical fibers, a distributed optical fiber strain interrogator, a distributed optical fiber temperature interrogator and a processor. The invention can collect the operation status data of the umbilical cable for a long time. The collected data is highly objective, can truly reflect the real-time operation status of the umbilical cables, and plays an important role in guaranteeing the long-term submarine oil and gas exploitation.

Abstract: The present invention pertains to a pharmaceutical, or nutraceutical, “self-emulsifying solid dispersion” composition for oral administration which contains (a) a drug or a nutraceutical that is water-insoluble or poorly water-soluble; (b) at least one surfactant; (c) one carrier selected from the group consisting of silicic acid, a silicate, or any combination thereof; and (d) at least one carbohydrate filler.