Abstract: A photographing apparatus and an inspection device are provided. The photographing apparatus comprises a camera, a light supplementing structure, and a closed housing; the camera is provided with a lens, and positioned in and connected to the housing; the housing is provided with at least one photographing portion configured to be attached to an object to be photographed, and a space is formed between the lens and the photographing portion; the light supplementing structure is positioned in and connected to the housing, the light supplementing structure is configured to emit light to said object through the space and the photographing portion, and the lens is configured to capture an image of said object via the photographing portion. The inspection device comprises a rack and the photographing apparatus, and the housing is connected to the rack.

Abstract: The present disclosure discloses a method for impurity removal and treatment in the recycling process of scrap positive electrode materials of lithium batteries.

Abstract: The present disclosure relates to a method, apparatus, electronic device, storage medium and system for vision task execution, and belongs to the technical field of information. The method includes: acquiring raw image data which is collected by an image sensor and not processed by an image signal processor (ISP); and inputting the raw image data into a trained first raw image neural network for executing a target vision task to obtain a vision task processing result output by the first raw image neural network, wherein the first raw image neural network is obtained based on training with an raw image training set. A vision task in response is executed by employing the raw image data so as to solve the problems that the quantity of image data processed by the ISP is relatively large, and related information may be lost in the related art.

Abstract: A remote temperature monitoring system includes a temperature monitoring device and a remote monitoring platform. The temperature monitoring system uses a temperature acquisition sensor to process collected temperature data in a single-chip microcomputer, and then the processed data information is transmitted to a computer by the single-chip microcomputer. Monitoring software is installed in the computer. After the software obtains the data, the data are parsed, and then a temperature-time map is presented in a visual interface. At the same time, the temperature monitoring device also transmits the parsed data to the remote monitoring platform, thereby realizing remote monitoring of temperature. The system integrates multi-channel acquisition, remote monitoring, timed temperature measurement, real-time mapping, data storage, temperature alarm and other functions into one.

Abstract: The present invention discloses an automatic laser calibration kit for calibrating the distance between a test device of a wireless charging system and a device under test (DUT). The calibration kit may be located in a wireless charging test system. The test system may comprise a test plane for controlling the DUT and a gripping arm for controlling the test device. The calibration kit may comprise: a laser pointer, configured to emit a laser beam; a mirror, positioned on the gripping arm and configured to reflect the laser beam to form a spot on the test plane; and a camera, configured to monitor the position of the spot.

Abstract: The present disclosure relates to a focus tracking system and method.

Abstract: An optimized extremely-large magnetic field measuring method includes: placing four orthogonally configured tunneling magnetoresistive resistors into an externally applied magnetic field, acquiring the resistances of the tunneling magnetoresistive resistors; calculating the angle between a magnetization direction of a free layer of each tunneling magnetoresistive resistor and that of a reference layer on the basis of the resistances of the four resistors; calculating magnetic field intensity H1 and direction ?1 of the externally applied magnetic field calculating magnetic field intensity H2 and direction ?2 of the externally applied magnetic field; and determining final magnetic field intensity H0 of the externally applied magnetic field on the basis of magnetic field intensity H1 and of magnetic field intensity H2; determining final direction ? of the externally applied magnetic field on the basis of direction ?2 and of direction ?1; and optimizing on the basis of direction ? and of magnetic field intensity

Abstract: Provided is a resistor structure of a series resistor of an Electro-Static Discharge (ESD) device. A poly resistor is divided into N small parts, and each small part is connected to an upper-part metal layer through a respectively corresponding Contact and Via. The Contact and Via corresponding to each small part and the connected upper-part metal layer form an independent unit. A metal aluminum material is adopted for the Via and the upper-part metal layer. The metal aluminum material or an aluminum alloy material is adopted for the Contact. A heat capacity characteristic of metal aluminum is utilized, and an existing structure is ingeniously utilized, so that the resistor may be prevented from being damaged by heating caused by the same ESD current, and meanwhile, an overall size of a circuit where the ESD device is located is greatly reduced.

Abstract: A wide magnetic field range measuring method includes the measurement step for a medium-and-large magnetic field and the measurement step for an extremely large magnetic field. In addition to that, the method further includes: Step 1: placing four orthogonally-configured magnetic resistance resistors into an external magnetic field and obtaining the resistance value of each magnetic resistance resistor; Step 2: substituting the resistance values of two mutually orthogonal magnetic resistance resistors into the measurement step for a medium-and-large magnetic field for calculation; if calculation process converges, then, determining that the external magnetic field as a medium-and-large magnetic field with the calculation result representing the magnetic field intensity and the direction of the medium-and-large magnetic field.

Abstract: An all-quadrant measurement method for a middle-large magnetic field includes the steps of placing four orthogonally configured magnetic resistances in an external magnetic field; determining two magnetic resistances with the minimum resistance values, thereby determining that the other two magnetic resistances are in an S1 status, and making resistance values of the two magnetic resistances which are in the S1 status be R1 and R2, and at the same time taking an initial reference layer magnetization direction of the two magnetic resistances as a given reference layer magnetization direction when there is no magnetic field; respectively calculating an included angle between a free layer magnetization direction and the reference layer magnetization direction of the two magnetic resistances; respectively calculating the free layer magnetization direction of the two magnetic resistances; and solving a magnetic field amplitude and direction of the external magnetic field.

Abstract: Provided is a low-power-consumption Constant-On-Time (COT) timing circuit design method and a timing circuit. A Resistor-Capacitor (RC) circuit is adopted for timing, to eliminate static power consumption of a timer. A specific structure includes a fourth P-channel Metal Oxide Semiconductor (MOS) transistor M4 of which a source is connected to an input voltage VIN, a gate is connected to a COT control terminal TON_CONTROL and a drain is connected with one end of a fourth resistor R4. The other end of the fourth resistor R4 is connected with one end of a fourth capacitor C4. The other end of the fourth capacitor C4 is grounded. A negative input of a comparator VCMP is connected with a reference voltage, and a positive input is connected between the fourth capacitor C4 and the fourth resistor R4.

Abstract: Provided are a hybrid distributed file system architecture structure, an applied file storage processing method, a dynamic migration method, and application thereof. The file storage processing method comprises: acquiring storage attributes of a file to be stored, wherein the storage attributes at least include a size of the file; determining, according to a pre-configured storage rule and the attributes of the file to be stored, in which distributed file system the file to be stored is stored; and storing the file to be stored in the determined distributed file system. The method further comprises migrating, according to a predetermined policy, a file that has been stored in a predetermined storage location. The device intelligently selects a file underlying storage policy according to file feature attributes to decide whether to migrate the file and to which file system the file is migrated so as to satisfy usage equalization of different file systems and also minimize performance degradation.

Abstract: The present disclosure provides a method for computing a support of an itemset candidate based on graph structure data, a method for determining a frequent itemset using the same, and a method for determining a frequent itemset based on a prefix tree. The method for computing a support of an itemset candidate based on graph structure data comprises: converting data in a database to graph structure data (S101); obtaining an itemset candidate from the database (S102); obtaining a connected component corresponding to the itemset candidate in the graph structure data (S103); determining the number of vertices included in the connected component (S104); and determining the number of vertices as the support of the itemset candidate (S105).

Abstract: A method for evaluating a uniformity of a magnetic field generated by a magnetic coil is disclosed. The method may include providing an electrical current to the magnetic coil to generate a magnetic field; scanning and obtaining a set of signals of the magnetic field by moving a measurement probe of a scanning tool point by point within a scanning region of the magnetic field and at a scanning height; performing a spectrum analysis on the set of signals by a spectrum analyzer to extract spectrum information of the magnetic field; transferring the set of signals and the extracted spectrum information to a computer system; selecting signals of the magnetic field with one or more frequencies from the set of signals based on the extracted spectrum information by the computer system; and analyzing the uniformity of the magnetic field by analyzing the selected signals by the computer system.

Abstract: A interply hybrid composite based single crystal alpha-aluminium oxide fiber includes single crystal alpha-aluminium oxide fiber, glass fiber and a resin compatibilizer; a hybrid ratio of the single crystal alpha-aluminium oxide fiber to the glass fiber is 1:40 to 3:53.

Abstract: A device for remotely sensing and monitoring physical quantities with a low power ad hoc network is used for monitoring and remotely transmitting environment parameters of a locale where the device is located. The device includes a physical quantity acquisition and processing unit, a Z-Wave core unit, an audible and visual alarm unit, a direct-current (DC) power supply, a memory unit, a programmer port, and a radio frequency (RF) antenna and matching circuit. The Z-Wave core unit is bidirectionally connected to the physical quantity acquisition and processing unit, the RF antenna and matching circuit, the memory unit, and the programmer port through general input output (I/O) ports. An output terminal of the Z-Wave core unit is connected to an input terminal of the audible and visual alarm unit. The DC power supply provides stability power with suitable voltage to the Z-Wave core unit.

Abstract: The present invention provided a precast modular concrete wall panel having a rectangular wall body with an upper slot and two side slots, and the wall body can further include an insulating layer and a decorative layer, and can contain a sandwich layer embedded in the concrete structure. The wall panels may be used with wall columns, wall corners and other components to form a wall panel system and further to form a building of frame structure or frame-share wall structure. Such wall panels have advantageous structural features and thus can be cost effectively prefabricated, and the construction process using such panel system can be performed with high efficiency.

Abstract: A device for remotely sensing and monitoring physical quantities with a low power ad hoc network is used for monitoring and remotely transmitting environment parameters of a locale where the device is located. The device includes a physical quantity acquisition and processing unit, a Z-Wave core unit, an audible and visual alarm unit, a direct-current (DC) power supply, a memory unit, a programmer port, and a radio frequency (RF) antenna and matching circuit. The Z-Wave core unit is bidirectionally connected to the physical quantity acquisition and processing unit, the RF antenna and matching circuit, the memory unit, and the programmer port through general input output (I/O) ports. An output terminal of the Z-Wave core unit is connected to an input terminal of the audible and visual alarm unit. The DC power supply provides stability power with suitable voltage to the Z-Wave core unit.

Abstract: This invention provides a code division multiplexing method and system which include the following steps: constructing the basic grouping perfect orthogonal complementary code pair mate, modulating the C code and S code of the basic grouping perfect orthogonal complementary code pair mate to the M orthogonal carrier frequency or orthogonal polarization waves which are serially in time, and implementing continuous shift on the modulated basic grouping perfect orthogonal complementary code pair mate.

Abstract: The present invention provides the method and system of a Time Division Multiplexing which makes use of a number of symbols in the time domain transmitting data sequence in parallel. The method includes: the transmitting terminal forms the transmission signals which are overlapped by a number of symbols in the time domain, and the receiving terminal does data sequence detection in the time domain for the received signals according to the one-to-one relationship between the transmission data sequence and the time waveform of the transmission data sequence. In addition, the present invention also provides a kind of Time Division Multiplexing system based on the above method of the Time Division Multiplexing. The present invention makes actively use of these overlapping to produce the coding constraint relation, thus the spectral efficiency of the system is improved by a large margin.