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46results about How to "Meet the needs of various application scenarios" patented technology

Network function authorization and device, readable storage medium and entity equipment

The invention provides a network function authorization method and device, a readable storage medium and entity equipment, and relates to the technical field of communication. The network function authorization method comprises that authorization verification information, with instance attribute information of a first network function NF entity, sent by the first NF entity is obtained; authorization for a service access applied by the first NF entity is verified according to service authorization information of a second NF entity and the authorization verification information, and informationof a verification result is back fed to the first NF entity; and the service authorization information indicates an NF instance, allowed to access, of a predetermined service of the second NF entity.Thus, the problem that a present service authorization mechanism cannot satisfy requirement for diverse application scenes can be solved.
Owner:DATANG MOBILE COMM EQUIP CO LTD

Information exchange device capable of being dynamically configured

The invention relates to an information exchange device capable of being dynamically configured, which comprises a digital signal processor, a CAN bus interface, a CAN open bus interface and an RS232 communication interface, wherein the digital signal processor is provided with an external storage, and a driver module, an operation system module and an application module are arranged in the digital signal processor; the storage stores parameter configuration files and can be connected with a remote configuration device through the RS232 communication interface to modify the parameter configuration files; the driver module contains a driver used for driving external hardware of the digital signal processor; and the application module comprises a CAN module, a CAN open module, a file system module, an SCI communication module and a parameter configuration module. By simply modifying the parameter configuration files, the information exchange device can meet different requirements of different clients, has wide application range, and does not need independent development and design for each client so as to save labor and cost.
Owner:维谛新能源有限公司

Image fusion method based on self-learning neural unit

The invention discloses an image fusion method based on a self-learning neural unit, and belongs to the field of image fusion. The method comprises the following implementation steps: 1) enabling a fused image to enter Mask R-CNN network for processing to obtain a corresponding mask image, a mask matrix, category information and score information; 2) constructing a self-coding network, and performing image feature selection, fusion and reconstruction by using a convolutional neural network (CNN); 3) carrying out sparse assignment on the convolution weight of the fusion layer, and adding minimum / maximum norm weight constraint and an L1 regular term; 4) respectively calculating the overall structure similarity SSIM, the regional structure similarity SSIM and the mutual information MI of thefused image and the source image; 5) training the neural network and adjusting parameters. According to the image fusion method based on the neural network, horizontal measurement and weight distribution can be obtained through learning network parameters in an optimal mode in a combined mode, the image definition is enhanced, the visual effect is improved, and the quality of a fused image is improved.
Owner:JIANGNAN UNIV

Speech interaction method and speech interaction device based on intelligent wire control

The embodiments of the invention disclose a speech interaction method and a speech interaction device based on intelligent wire control. The speech interaction method comprises the following steps that the speech interaction device is waken up to collect speech information in real time; an audio front end processing module is used for performing speech matching and noise reduction enhancement treatment on the collected speech information; speech instructions are transmitted to an intelligent device for real-time speech recognition and semantic parsing treatment, speech instruction informationis decomposed and extracted, and the instructions are responded to open a corresponding application; audio data of the intelligent device are received through Bluetooth or an FM transmitting and receiving module, and then the audio data are transmitted to the Bluetooth or an FM radio device for playing; the speech interaction method and the speech interaction device based on intelligent wire control can be applied to a charging line of the intelligent device, so that the traditional charging line has intelligent speech interaction and control functions, hands are completely liberated, great convenience and security can be brought to users who are driving or working, and the needs of a variety of application scenarios can be met.
Owner:北京声赫科技有限公司

File making method and device

Embodiments of the invention provide a file making method and a file making device. The method comprises the steps of obtaining an A2L file and a target collection variable provided by a data collection demander; obtaining variable information corresponding to the target acquisition variable from the A2L file; determining a target collection configuration rule according to the A2L file; and makingan acquisition configuration file according to the variable information corresponding to the target acquisition variable and the target acquisition configuration rule. According to the method provided by the embodiment of the invention, the variable information and the acquisition configuration rule can be quickly and accurately obtained. The manpower is not needed. The manufacturing efficiency and accuracy of the collection configuration file are improved. The collection configuration file can be manufactured visually, and the requirements of various application scenes are met.
Owner:WEICHAI POWER CO LTD

Fluorescent nanomaterial-polymer complex, preparation method of wavelength conversion element, and light-emitting device

The invention discloses a fluorescent nanomaterial-polymer complex, a preparation method of a wavelength conversion element and a light-emitting device. The preparation method of the fluorescent nanomaterial-polymer complex comprises the following steps: providing precursors, wherein the precursors comprise a fluorescent nano-material and a polymer; and mixing the precursors at a first temperatureat or above the melting point of the polymer, followed by cooling. And the stability of the obtained fluorescent nanomaterial-polymer complex is obviously improved.
Owner:SUZHOU XINGSHUO NANOTECH CO LTD

Measurement system and method of OSNR of any point in optical fiber communication link

ActiveCN108429580ACalculate power valueCalculating SNRElectromagnetic transmissionTelecommunications linkPhotodetector
The invention discloses a measurement system and method of an OSNR of any point in an optical fiber communication link, and relates to the technical field of optical fiber communication. The measurement system comprises: a linear frequency modulation modulated data optical signal generator and a receiver, the receiver and the linear frequency modulation modulated data optical signal generator areconnected by a transmission optical fiber, at least one monitoring point is disposed in the transmission optical fiber, and each monitoring point can be located at any position in the transmission optical fiber. A coupler, a photodetector and a digital signal processor are arranged at each monitoring point; the coupler is used for dividing a hybrid optical signal into a normally transmitted optical signal and a detection signal; the photodetector is used for receiving the detection signal; the digital signal processor is used for calculating an OSNR value at the monitoring point according to atotal power value of the detection signal, the power of a linear frequency modulation signal in the detection signal and the power of a data signal in the detection signal. By adoption of the measurement system and method disclosed by the invention, the OSNR of any point in the optical fiber communication link can be flexibly and accurately measured.
Owner:WUHAN POST & TELECOMM RES INST CO LTD

Method for processing access terminal by phonetic gate

The method comprises: dividing up the internal lines into the internal line group on the VoIP gateway. It also comprises: a) the VoIP gateway detects the access signal from the terminal; after finding an access signal, the VoIP gateway decides if the ID of terminal sending the access signal has been added into one of the internal line groups of the VoIP gateway; if yes, then connecting it to the internal line group; otherwise, adding said terminal ID into one of internal line groups of the VoIP gateway, and connecting said terminal into said internal line group.
Owner:GLOBAL INNOVATION AGGREGATORS LLC

Process concurrent information compiling and playing equipment and method

InactiveCN109982003AReduce processing timeImprove media editing and broadcasting efficiencyTelevision system detailsColor television detailsSoftware engineeringBoard type
The embodiment of the invention provides process concurrent information compiling and playing equipment and method, the equipment comprises a screen board type management module, a program list editing module and an information publishing module, and all the modules are connected with a target playing terminal in parallel; the screen plate type management module determines the area division and the area attribute of the screen of the target playing terminal according to a pre-stored plate type template; the program list editing module compiles a program list according to the audios, videos andpictures stored in the media library, and sends the compiled program list to the target playing terminal, so that the target playing terminal plays the audios, videos and pictures according to the compiled program list; and the information publishing module is used for sending the characters stored in the media library to the target playing terminal, so that the target playing terminal publishesthe characters according to the area division and the area attribute of the screen. According to the equipment provided by the embodiment of the invention, parallel media cataloging is realized, the media file processing time is shortened, the media cataloging efficiency is improved, and information can be published in time.
Owner:BEIJING URBAN CONSTR DESIGN & DEV GRP CO

LED light bar and manufacturing method thereof

The invention discloses an LED light bar and a manufacturing method thereof. The objective of the invention is to solve problems that an existing LED light bar is thick, cost is high, and the shear marks are prone to position deviation and falling off; according to the LED light bar manufactured through the LED light bar manufacturing method, mark holes or mark notches are directly formed in the flexible circuit board to mark the shearing position, and compared with the mode that shearing marks are printed on the surface of a light bar packaging adhesive layer, the situation of falling cannotoccur, and reliability is higher; the marking holes are directly formed between the adjacent line shearing units on the flexible circuit board, so that the arrangement position is more accurate and reliable, and the situation that the sheared LED light bar cannot work normally is avoided; meanwhile, according to the LED light bar, the first LED chip can be directly arranged on the flexible circuitboard to be packaged; compared with an existing LED light bar, the manufacturing process of an LED support and LED light beads can be omitted, the manufacturing efficiency is higher, the cost is lower, the obtained LED light bar is a COB light bar, the thickness is smaller, and the requirements of various application scenes can be better met.
Owner:重庆慧库科技有限公司

Directionally-arranged graphene/epoxy resin high-thermal-conductivity composite material and preparation method thereof

The invention discloses a directionally-arranged graphene / epoxy resin high-thermal-conductivity composite material. The graphene soaking film fragments which are arranged directionally and have a thickness of 5-20 microns and a lateral size of 0.5-3mm are used as heat-conducting filler, and the graphene soaking film fragments and epoxy resin which is poured and coats a heat-conducting material arecured together at high temperature, so that the graphene soaking film is prepared by finishing final directional arrangement of the graphene soaking film fragments. The invention also relates to a preparation method, which comprises the following steps: mechanically crushing industrial graphene soaking film leftover materials to obtain graphene soaking film fragments, filling the graphene soakingfilm fragments into a mold, injecting epoxy resin into the mold filled with the filler, carrying out vacuum defoaming for multiple times, and carrying out high-temperature curing to obtain the material. The graphene soaking film adopted by the invention is derived from industrial waste, so that waste utilization can be realized; the prepared composite material is high in filler orientation, so that the heat-conducting property is excellent; the method for realizing arrangement orientation is simple mechanical extrusion or airflow positive pressure, the steps are simple, and industrial production is easy to realize.
Owner:SHANGHAI UNIV +1

Multi-degree-of-freedom micro-vibration diagnosis method and sensing terminal

The invention relates to a multi-degree-of-freedom micro-vibration diagnosis method and sensing terminal. Calculation and observation of settlement and displacement values are realized, and credibility analysis is carried out on the settlement and displacement values obtained by calculating data samples acquired at each acquisition time point, thereby improving the accuracy of an observation result. Through vibration detection and trigger data acquisition including acceleration data, magnetic field data, angle data, positioning data and the like, the sensors are high in collaboration, the datarelevance at the same time is high, and the dynamic change condition of an observation point can be reflected in real time. According to the invention, non-contact sensing, edge calculation, data storage, backup power supply, communication transmission, encryption chips and the like are realized, a wider acquisition frequency can be freely selected, and micro-vibration and magnetic force change can be freely sensed; and the method and the sensing terminal can be applied to different application scenes such as dangerous buildings, ancient buildings, bridges, underground pipe galleries, dams, tunnels and iron towers, and provide powerful support for disaster monitoring and early warning and forecasting in China.
Owner:厦门万宾科技有限公司

Excess loop delay compensation circuit, excess loop compensation method and continuous time delta-sigma analog-digital converter

An embodiment of the invention discloses an ELD (excess loop delay) compensation circuit. The ELD compensation circuit is used for carrying out ELD compensation on ELD time of a continuous time delta-sigma analog-digital converter and comprises a delay module and a compensation module. The delay module is used for selecting a time delay among a plurality of preset time delays and outputting received signals in a delayed manner on the basis of the selected time delay; the compensation module is used for carrying out ELD compensation according to the signals outputted by the delay module in the delay manner. The embodiment of the invention further discloses an ELD compensation method and the continuous time delta-sigma analog-digital converter.
Owner:SANECHIPS TECH CO LTD

Video intelligent analysis custom event rule processing method

The invention relates to a video intelligent analysis custom event rule processing method. The method comprises the following steps: selecting one or more input conditions of an event rule needing tobe set; setting an input condition based on the selected input condition; based on the setting of the input condition, setting related to the event, and generating a corresponding event rule; and performing related event detection based on the generated event rule, and performing related alarm and equipment linkage when an event occurs. Based on the video intelligent analysis custom event rule processing method provided by the invention, the custom event rule can be set based on the combination of various conditions such as the area, the warning line, the time, the recognition result and the equipment state, so that the requirements of various application scenes can be met under the condition of not developing the specific event rule, and the user experience is improved, the project development workload is greatly reduced, and the project development period is shortened.
Owner:深圳天海宸光科技有限公司

A gradient coil design method for a biomedical imaging system and a gradient coil

The invention relates to a gradient coil design method for a biomedical imaging system and a gradient coil. The gradient coil design method for the biomedical imaging system comprises the following steps that a, a non-developable curved surface serves as a gradient coil bearing surface of a gradient coil, and the gradient coil design method comprises the following steps that a, dividing and dispersing the non-developable gradient coil bearing surface; b, distributing at least two wires which are connected with each other on the bearing surface of the non-developable gradient coil after subdivision and dispersion; c, driving the wire by adopting a driving circuit, determining the spatial position of the wire, and obtaining the configuration of the wire in a three-dimensional space; and d, processing a gradient coil according to the configuration of the wire. According to the invention, the gradient coil bearing surface is expanded from an expandable surface (a cylinder or an elliptic cylinder) to an unexpandable curved surface, various application requirements of a magnetic biological imaging system are met, and the imaging quality is improved.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

A projection and lighting device

The embodiment of the invention provides a projection and lighting device comprising a lamp socket, a processing module and a projection module. The processing module and the projection module are both arranged on the lamp socket. The lamp socket is used for installing and fixing the device. The processing module is used for responding to an operation instruction, and converting to-be-processed data into projection data according to the operation instruction. The projection module is used for projecting a corresponding light beam according to the projection data to enable the light beam to form a projection image. The projection module comprises a first light source used to generate the light beam projected by the projection module. According to the device, through the structure and the installation mode similar to those of an illuminating lamp, projection displaying on a desktop, a wall surface or specific space is realized; the functions are more rich; and demands by a plurality of application scenes are satisfied.
Owner:BEIJING ASU TECH CO LTD

A kind of aligned graphene/epoxy resin high thermal conductivity composite material and preparation method thereof

The invention discloses an oriented arrangement graphene / epoxy resin composite material with high thermal conductivity, which is characterized in that it uses oriented arranged graphene soaking film fragments with a thickness of 5-20 μm and a lateral size of 0.5-3 mm as heat conduction materials. The filler is cured at high temperature together with the epoxy resin that pours and covers the heat-conducting material, so that the graphene heat-spreading film fragments complete the final alignment. The invention also discloses a preparation method thereof. The industrial graphene heat soaking film scraps are mechanically crushed to obtain graphene heat soaking film fragments, the graphene heat soaking film fragments are stacked in a mold, and epoxy resin is injected into the mold filled with fillers. , multiple times of vacuum defoaming and high temperature curing to obtain the material. The graphene soaking film used in the present invention is derived from industrial waste, which can realize waste utilization; the prepared composite material has excellent thermal conductivity due to the high orientation of the filler; the method of realizing alignment and orientation is simple mechanical extrusion or positive air flow, and the steps are simple , Easy to realize industrialized production.
Owner:SHANGHAI UNIV +1

Clamp-type pole clamp, clamp-type pole frame and clamp-type multi-point fixed high-altitude insulation work platform

PendingCN111101743AEasy job requirementsImprove the efficiency of adjusting the position of the adjusting screwTowersBuilding scaffoldsControl theoryScrew thread
The invention provides a clamp-type pole clamp, a clamp-type pole frame and a clamp-type multi-point fixed high-altitude insulation work platform. The clamp-type pole clamp comprises two cross-arranged stress pole and a connecting vertical pole, the two stress poles are correspondingly connected with the connecting vertical pole rotatably, a pole holding space is formed after cross arranging of the two cross-arranged stress pole and the connecting vertical pole, an arc butting frame is arranged at the top end of the connecting vertical pole and located in the pole holding space, the top ends of the two stress poles are oppositely arranged, each of the tail ends of the two stress poles is connected with an adjusting lead screw, a stable bearing is further arranged on the connecting verticalpole, one screw sleeve is supported on the connecting vertical pole through the stable bearing, opposite-direction threads are turned at the inner two ends of the screw sleeve, and the two ends of the screw sleeve are in screwed connection with the adjusting lead screws correspondingly connected with the tail ends of the stress poles through the threads. According to the clamp-type pole clamp, the stability and efficiency of high-altitude maintenance operation can be effectively improved, and the technology plays an important role in ensuring the safety of power distribution network engineering construction and reliable operation of equipment.
Owner:天津滨电电力工程有限公司

Lighting device

The present invention is suitable for the technical field of electrical control, and provides a lighting device. The lighting device comprises a keyboard plate, a display screen, a lighting module, animage collection module, a record module and a control module. The keyboard plate is connected with the control module, the control module is connected with the display screen, the lighting module, the image collection module and the record module; the keyboard plate comprises an image collection key, a record key and a lighting key; the control module controls the image collection module for image collection according to an image collection command sent when the image collection key is started, the control module controls the record module for record according to a record command sent when the record key is started, and the control module controls the lighting module for lighting according to a lighting command sent when the lighting key is started. The lighting device has image collection and record functions and is convenient and rapid in operation.
Owner:SHENZHEN OCEANS KING LIGHTING ENG CO LTD +2

Continuous wave radar front end

The embodiment of the invention provides a continuous wave radar front end, which comprises a frequency synthesizer, a front end transceiver chip, a transmitting antenna and a receiving antenna, and is characterized in that the front end transceiver chip comprises a phase locking unit, a frequency multiplier, a power divider and a frequency mixer; the frequency synthesizer generates a swept-frequency signal and outputs the swept-frequency signal to the phase locking unit; the phase locking unit performs phase locking according to the swept-frequency signal; a signal is output to the frequencymultiplier; the frequency multiplier performs frequency multiplication processing on the signal; a signal is output to the power divider; the power divider divides the signal into two paths; wherein one path is sent to the transmitting antenna, the other path is sent to the frequency mixer, the frequency mixer mixes the other path of signals output by the power divider and the signals received bythe receiving antenna and outputs the signals to the signal processor to extract radar target information, the problems that an existing continuous wave radar is poor in front-end stability and largein size are solved, and the requirements of various application scenes are met.
Owner:BEIJING JULI SCI & TECH

Display device and display method

The invention discloses a display device and a display method. The display device comprises a direct-current friction nano-generator and a display structure, the direct-current friction nano-generatorcan generate a direct-current electric signal under the action of an external force, namely the mechanical energy in an external environment is converted into the electric energy, so that the electric energy outputted by the direct-current friction nano-generator can supply power to the display structure, the power supply to the display structure can be realized without setting a power supply, and the passive self-driving is realized. The direct-current friction nanometer generator is adopted and outputs the direct-current electric signals, so that the display device does not need to be provided with a rectifier and other structures, the display structure can be effectively driven to display only through the direct-current friction nanometer generator, the structure of the display deviceis further simplified, and the manufacturing cost of the display device is reduced. Moreover, the display device can be designed to be light in weight and portable, so that the requirements of variousapplication scenes are met, and the application field of the display device is widened.
Owner:BEIJING INST OF NANOENERGY & NANOSYST

High-efficiency fireproof flame-retardant cable

The invention relates to the field of halogen-free low-smoke flame-retardant cables and provides a high-efficiency fireproof flame-retardant cable for improving the flame retardant effect of cables. The provided high-efficiency fireproof flame-retardant cable comprises core wires, a cable forming layer and a sheath layer, wherein the core wires are connected with the cable forming layer, and the cable forming layer is connected with the sheath layer; each core wire comprises a conductor and an insulating layer, and the insulating layers are connected with the cable layer; the cable forming layer comprises a non-woven fabric layer and a polypropylene layer, a non-woven fabric is coated with the core wires after twisting, and the non-woven fabric layer is formed on the twisted core wires and then coated with a polypropylene material to form the polypropylene layer. By adding a modified flame retardant in the production process of the polypropylene material, the fireproof flame-retardant effect of the cable can be effectively improved, and correspondingly the needs of various application scenes can be met in practical application.
Owner:广东联讯电缆有限公司

Full-digitalized and high-efficiency VHF radio transmitter

The invention discloses a full-digitalized and high-efficiency VHF radio transmitter, which belongs to the technical field of wireless communication, and comprises a digital processing module, a radio frequency amplification module, a filter module and an antenna, the digital processing module receives a digitalized signal, the digitalized signal enters a modulator to modulate digital information into a high-speed pulse after digital preprocessing, and a differential digital pulse string is output; and the radio frequency amplification module amplifies the differential digital pulse signal output by the digital processing module, filters the differential digital pulse signal through the filter module to extract a required modulated carrier signal, converts the modulated carrier signal into a single-ended signal, and radiates the single-ended signal through an antenna. The transmitter only comprises the FPGA, the driving amplifier, the S-type power amplifier, the filter and other circuit components, the complexity is reduced, and the reliability is improved; and the digital structure can provide reconfigurable capabilities of frequency, bandwidth, various modulation modes and the like, and the requirements of various application scenes can be met by changing software.
Owner:NANJING HOUHUA COMM EQUIP

User-controllable power supply/charging setting method and system for mobile intelligent terminal

The invention is suitable for the application field of a power supply technology, and provides a power supply / charging arrangement method of a controllable-user mobile intelligent terminal. The method comprises the following steps: a step A, monitoring whether a large-current charger is plugged, a step B, if the fact that the large-current charger is plugged is detected, popping out a power supply selection menu containing an option for selecting an external charger power supply mode or a battery power supply mode, and a step C, powering the mobile intelligent terminal by means of a power supply mode selected by a user. The user can flexibly control power supply and charging of the mobile intelligent terminal according to an actual application scenario, interactivity between the user and the mobile intelligent terminal is enhanced, the electric quantity of a battery is saved, the service life of the battery is prolonged, and needs of various application scenarios are satisfied well; and, further, when the power supply or the charging is performed, the mobile intelligent terminal can also display a corresponding icon according to a charging / power supply condition, and the user can know a state of the mobile intelligent terminal at a glance.
Owner:SHENZHEN WATER WORLD INFORMATION CO LTD

Audio processing method, audio processing device and earphone

The invention is applicable to the technical field of earphones, and provides an audio processing method, an audio processing device, an earphone and a computer readable storage medium, the audio processing method comprises the following steps: when a preset instruction is detected, determining an audio clip indicated by the preset instruction in a target audio; when the audio clip is played through an earphone, determining a segmentation node in the audio clip, and when the audio clip is played to any segmentation node, pausing playing of the audio clip; after pausing playing of the audio clip, collecting user voice through a microphone of the earphone, and playing the user voice through a loudspeaker of the earphone; and after the voice of the user is played, continuing to play the audioclip from the corresponding segmentation node. Through the method, the problem that the existing earphone has a single function and is difficult to adapt to the requirements of users in different occasions can be solved.
Owner:SHENZHEN VIMAI TECH CO LTD

Guider with quick mounting and locking device and surgical robot

The invention relates to a guider with a quick mounting and locking device and a surgical robot. The guider comprises a guiding part which is provided with a hollow structure penetrating along the axis; one end of the connecting part is connected with the guide part, and the other end is provided with an interface; the quick mounting and locking device is arranged on the connecting part; and the tracer is mounted on the quick mounting and locking device. According to the rapid mounting and locking device, rapid insertion and locking can be achieved, and the operation preparation time is shortened. In addition, the two ends of the tracer and the two ends of the rapid installation locking device are provided with a positioning protrusion and a positioning groove respectively, and accurate insertion can be achieved. In addition, the guider is provided with the side opening, so that the guide needle can be conveniently separated from the guider from the side opening of the guider after being arranged, the situation that a mechanical arm moves in a large range to complete the guide needle separation work is avoided, and the operation time is saved.
Owner:BEIJING ROSSUM ROBOT TECH CO LTD

Light irradiation device

The invention discloses a light irradiation device. The device comprises a linear light source, and a number of reflection units which surround the linear light source to form a reflection cavity, thereflection cavity comprises a light outlet, and part of light beams emitted by the linear light source are reflected by at least one reflection unit and then emitted from the light outlet; the devicefurther comprises a plurality of first detection units which are used for measuring incident angles and first energy distribution of the light beams entering the corresponding reflection units, a plurality of rotating units which are used for driving the reflection units to rotate, a second detection unit which is used for measuring the emergence angle and the second energy distribution of the emergent light beams of the light outlet, and a control unit which is used for acquiring data of the incident angle, the first energy distribution, the emergence angle and the second energy distribution, and controlling the rotating units to rotate the reflection units according to the preset emergence angle, the preset energy distribution and the data, so that the emergent light beams are emergentaccording to the preset emergence angle and the preset energy distribution. According to the technical scheme, the emergent angle and the energy distribution of the emergent light beams can be adjusted, so that the requirements of various application scenes are met.
Owner:SHANGHAI MICRO ELECTRONICS EQUIP (GRP) CO LTD
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