瓶子

Multi-mode pronunciation teaching interaction system, device and method

The invention relates to the field of speech recognition, in particular to a multi-mode pronunciation teaching interaction system, device and method, and the method comprises the steps: obtaining audio data of a speaker, obtaining audio features corresponding to the audio data, and obtaining audio accuracy; classifying the audio data according to the audio accuracy to obtain audio categories, and calculating the pronunciation accuracy of each audio category; when the pronunciation accuracy is greater than a set threshold value, the audio category is a normal category; performing word segmentation on the recognition result in the normal category by using a minimum value point detection algorithm; according to each phonetic symbol after word segmentation, determining video data corresponding to each phonetic symbol, and obtaining a video data identification result of the speaker; determining a pronunciation result of the speaker based on the audio recognition result and the video data recognition ...

Energy-saving fabricated wall

The invention relates to an energy-saving fabricated wall which comprises a partition wall and a filling structure, a containing space is formed in the partition wall, the filling structure is arranged in the containing space and comprises a first filling body, a second filling body, a first heat bridge and a second heat bridge, the first filling body is parallel to the second filling body, the first heat bridge penetrates in the thickness direction of the first filling body, and the second heat bridge penetrates in the thickness direction of the second filling body. The second thermal bridge penetrates in the thickness direction of the second filling body; the end, facing the second filling body, of the first thermal bridge is provided with a first slope, the end, facing the first filling body, of the second thermal bridge is provided with a second slope, the first filling body can move in the first direction so that the first slope can be attached to the second slope, and the contact ...

Portable simple and easy english study teaching board

... 本实用新型公开了种移动式简易英语学习教学板，包括教学板以及设置于教学板底部的支腿框，所述教学板顶部设有字母框，所述字母框内设有字母块，所述支腿框内设有连接于教学板底部的伸缩支腿，所述伸缩支腿底部设有底座，所述底座底部设有滑轮，所述支腿框内顶部设有蓄电池，所述字母框侧设有听力播放器，所述听力播放器电性连接于蓄电池，所述教学板内设有字母块吸附区和书写区，所述教学板背面设有磁铁；可以调节伸缩支腿使得教学板处于个合适的使用高度，结构简单便于移动，同样伸缩支腿可以收起，底座侧的锁扣可以挂住凸块，将底座收起在支腿框中，通过磁铁吸附在黑板上将装置挂住，使用起来非常方便，有多种放置装置的方法。 ...

METHOD FOR DETECTING WELDING STRENGTH OF CHIP BONDING WIRE

A method for detecting welding strength of a chip bonding wire, the method comprising: S1: preparing a solution having 20%-30% by mass of potassium hydroxide; S2: checking whether the chip has been encapsulated with a plastic encapsulation material, and if so, then moving to step S3, and if not, then moving to step S5; S3: placing the chip into a corrosive liquid, and removing the encapsulation material of the chip to expose a gold wire; S4: taking the chip from the corrosive liquid, and cleaning the chip with acetone; S5: heating the potassium hydroxide solution prepared in S1, and maintaining the potassium hydroxide solution at a temperature of 40-60ºC; S6: immersing the chip into the potassium hydroxide solution in S5, corroding the chip for 1.5-3 minutes, and then taking out the chip; S7: rinsing the chip with clean water; S8: air drying a to-be-detected chip with an ionizer; S9: placing the chip under a 40x microscope, peeling a target gold wire from a welding pad with a hook needle ...

SOCKET AND POWER CONNECTION SYSTEM COMPRISING SAME

A socket. The socket comprises: a housing (210) and a plug-in piece (220), jacks being provided on at least one side face of the housing (210), a chuck conducting plate (212) being provided inside the housing (210), at least two elastic conductor contacts (222) being arranged on the surface of the plug-in piece (220), the elastic conductor contacts (222) being used for conducting a power supply, and the plug-in piece (220) being arranged outside the housing (210). A connecting trough (610) is provided on the back of the housing (210), internal contacts (611) are provided in the connecting trough (610), and the internal contacts (611) conduct with the chuck conducting plate (212); the plug-in piece (220) comprises a connector (223), the connector (223) is provided with external contacts (630), and the external contacts (630) conduct with the elastic conductor contacts (222); and the connector (223) can be inserted into the connecting trough (610). A recovery groove (620) is provided on the ...

SECURE STORAGE METHOD BASED ON DOMESTIC CRYPTOGRAPHY CHIP

A secure storage method based on a domestic cryptography chip. The method comprises: dividing LBA data into a plurality of blocks, and configuring different keys for different blocks to perform encryption and decryption; performing an exclusive OR operation on one key and a domestic cryptography chip ID to generate a new key, performing an exclusive OR operation on the new key and an LBA of the current block to generate encryption and decryption keys for different blocks, and then calculating a Hash result of the new key by means of an SM3 algorithm to generate data of a fixed length, wherein the data is a final encryption and decryption key of the block; and performing key extension and data transmission in parallel. A storage block key is generated each time same is used, and is not stored inside a chip, and even if a certain key is cracked, full-disk data cannot be parsed, thereby greatly enhancing the difficulty of cracking the full-disk data, and enhancing the security of the key and ...

Intelligent monitoring system based on engineering safety

The invention discloses an intelligent monitoring system based on engineering safety, which comprises at least one intelligent safety helmet and a monitoring platform, and is characterized in that a data acquisition module, a wearing monitoring module, a data analysis module and a reminding module are arranged in the intelligent safety helmet, and the invention relates to the technical field of engineering safety. According to the intelligent monitoring system based on engineering safety, the emission temperature and humidity of the human body, the environment temperature and the neck pulse frequency of the human body are obtained through the intelligent safety helmet, analyzed and reminded, and the problems that during construction of a construction site, a worker works in an overload mode outdoors, the current physical condition of the worker cannot be known in time, and the working efficiency is high are solved. Meanwhile, through the pulse detection assembly connected with the adjusting ...

SOCKET AND POWER CONNECTION SYSTEM COMPRISING SAME

A socket. The socket comprises: a housing (210) and a plug-in piece (220), jacks being provided on at least one side face of the housing (210), a chuck conducting plate (212) being provided inside the housing (210), at least two elastic conductor contacts (222) being arranged on the surface of the plug-in piece (220), the elastic conductor contacts (222) being used for conducting a power supply, and the plug-in piece (220) being arranged outside the housing (210). A connecting trough (610) is provided on the back of the housing (210), internal contacts (611) are provided in the connecting trough (610), and the internal contacts (611) conduct with the chuck conducting plate (212); the plug-in piece (220) comprises a connector (223), the connector (223) is provided with external contacts (630), and the external contacts (630) conduct with the elastic conductor contacts (222); and the connector (223) can be inserted into the connecting trough (610). A recovery groove (620) is provided on the ...

Laboratory's marshall test piece integrated device that blendes and feed

... 本实用新型公开了种试验室马歇尔试件拌和及装料体化装置，包括拌和锅、支架、底座、轴杆、搅拌电机、伸缩式搅拌叶、装料系统、控制面板以及用于提供电能的电源；拌和锅固定于支架上，装料系统包括顶层圆盘、底层托盘、若干马歇尔试模及若干用于连接顶层圆盘及底层托盘的连接杆。本实用新型能够有效的次性完成多个马歇尔试件的制备。 ...

Steel structure capable of preventing shaking

The steel structure comprises an energy consumption assembly and two connecting assemblies connected with the two ends of the energy consumption assembly, the energy consumption assembly is low-yield-point steel, the energy consumption assembly comprises two connecting webs and an energy consumption web, and the two connecting webs are connected with the connecting assemblies correspondingly; the two end faces of the energy consumption web are welded to the connecting webs correspondingly, the energy consumption web is in a curved surface shape in the extending direction of the connecting webs, and the energy consumption web is used for bearing deformation energy consumption caused by shaking of the two connecting webs. The energy consumption web can fully play a role in bearing deformation energy consumption under an earthquake, can better bear more deformation energy consumption under the action of the earthquake, particularly can better bear vibration brought by connecting assemblies ...

Method for upgrading firmware based on PCIe device driver

The invention provides a method for upgrading firmware based on a PCIe (Peripheral Component Interconnect Express) device driver. Comprising the following steps that equipment initiates a firmware upgrading request; putting the request as a common task into a CQ command queue of a driver; after the driver receives a firmware updating instruction, the instruction is written into a specified task processing register, and a tail pointer of a CQ queue is updated; after the PCIe device detects that the register is written, the pointer is compared with the pointer before writing, and a newly added firmware updating task is obtained; the firmware updating task is carried to the PCIe equipment side through direct memory access, and the PCIe equipment side executes a firmware updating action; after firmware upgrading is completed, the state is written into an RQ response queue, and interruption is reported to a driving end; after receiving the interruption, the driving end reads a returned response ...

Ultrasonic department auxiliary diagnosis device based on medical image

The invention discloses an ultrasonic department auxiliary diagnosis device based on medical imaging, and relates to the technical field of medical instruments.The ultrasonic department auxiliary diagnosis device comprises an ultrasonic detection head, a handheld handle is fixedly installed at the upper end of the ultrasonic detection head, a collecting groove is formed in the right side of the upper end of the ultrasonic detection head, and a sliding groove is formed in the right side end of the ultrasonic detection head; a first through hole is formed in the left side of the upper end of the ultrasonic detection head, a sliding groove formed in the ultrasonic detection head, the second through hole and the first through hole are communicated, and a first baffle is slidably mounted in the sliding groove formed in the ultrasonic detection head. The device can drive the first baffle to be separated from the second through hole formed in the ultrasonic detection head through the lever principle ...

Method and device for determining parameters of lithium battery, storage medium and vehicle

The invention discloses a method and device for determining parameters of a lithium battery, a storage medium and a vehicle. The method comprises the steps that position information of at least one particle of the lithium battery is acquired, and the position information of the at least one particle is used for representing the position of the at least one particle in an eight-dimensional space; determining a fitness value of the at least one particle based on the position information of the at least one particle; determining a maximum fitness value in the fitness values of the at least one particle; and the position information of the particles corresponding to the maximum fitness value is determined as the parameters of the lithium battery, and the parameters are used for representing the physical characteristics of the lithium battery. According to the invention, the technical problem of low precision of parameter identification of the lithium ion battery is solved.

Energy -saving medical effluent treatment plant of reverse control

... 本实用新型公开了种反向控制节能型医疗废水处理装置，包括依次连接的集水池、厌氧池、平衡池、接触氧化池、沉淀池、消毒池，其中，所述的接触氧化池上连接有第液位计、DO溶解氧仪和用于向接触氧化池内通入空气的风机，所述的风机上连接有变频器。本实用新型的目的在于提供种处理效果好、节约能耗和药剂的反向控制节能型医疗废水处理装置。 ...

Cross-browser application and identity authentication method and system based on intelligent password key

The invention provides a cross-browser application and identity authentication method and system based on an intelligent password key, and belongs to the technical field of data encryption. Comprising the following steps: key distribution; the secret key management center generates an SM2 encryption secret key pair, calls an ECC encryption secret key pair importing interface to import the SM2 encryption secret key pair into encryption equipment, and imports a public key into an upper layer database; label setting; the equipment initialization program records label information on the encryption equipment into the equipment by calling and setting an equipment label interface; according to tag information of the COS equipment, account information corresponding to tags is sequentially read from the file, and after the account information and a specific value are subjected to exclusive OR, the account information is encrypted and stored in the intelligent password key; and the browser end compares ...

Waterproof curtain wall unit and curtain wall with same

According to the waterproof curtain wall unit, one end of a heat conduction piece is arranged on the inner side, the other side of the heat conduction piece is arranged on second glass, the second glass is arranged close to the outer side, and a sealing cavity is formed between first glass and the second glass, so that in the using process, part of indoor temperature can enter the sealing cavity through the first glass; when the curtain wall unit is in use, the other part of the curtain wall unit transmits indoor temperature to the second glass through the heat conduction part, so that the temperature on the second glass cannot generate overlarge temperature difference change, the problem that after the second glass deforms due to temperature difference, connecting glue between the second glass and the frame body is torn is solved, and the waterproof performance of the curtain wall unit is improved. According to the curtain wall with the waterproof curtain wall unit, the end, provided with ...

Utilize effluent treatment plant of advantage bacterial

... 本实用新型公开了种利用优势菌种的废水处理装置，包括依次连接的高效流化态好氧消化池、接触氧化池、沉淀池、生物吸附池；所述的高效流化态好氧消化池包括好氧消化反应区，所述的好氧消化反应区内设有填料和用于扰流的多块挡板，所述的好氧消化反应区上还设有用于驱动好氧消化反应区的生活污水产生旋流的多个曝气头。本实用新型的目的在于提供种在好氧条件下高效处理带悬浮固体的生活污水、工作稳定、占地面积小的利用优势菌种的废水处理装置。 ...

Self-cleaning curtain wall and building system

The invention provides a self-cleaning curtain wall which comprises a first glass layer, a first fastening piece and a second fastening piece, the first fastening piece and the second fastening piece are used for fixing the first glass layer to a curtain wall system, the self-cleaning curtain wall further comprises a water gathering prevention layer, the water gathering prevention layer comprises a first anti-pollution layer, a heat conduction layer and a second anti-pollution layer which are sequentially arranged in a stacked mode, and the first anti-pollution layer is provided with an opening; the heat conducting layer extends into the opening to absorb heat of sunlight; and the energy storage part is electrically connected with the heat conduction layer and is used for storing the heat energy absorbed by the heat conduction layer or transferring the stored heat energy into the heat conduction layer so as to heat the first anti-fouling layer. The invention further provides a building ...

Intelligent password key file storage method based on SKF standard

The invention discloses a smart key file storage method based on an SKF standard, and the method comprises the steps: dividing a NORFLASH space into a directory table, a file distribution table, a data region and a buffer region, and defining a file system mapping process from the directory table to the file distribution table and then to the data region, and for reading the application, the container and the file, firstly retrieving the position of the file distribution table from the directory table, then reading the file data of the data area according to the file distribution table, and when the file is written, adopting a linked list structure, sequentially setting the current distribution table to record the next distribution table address, finding the corresponding directory entry according to the file name, and writing the file into the data area. And obtaining a first chain number of the file distribution table, and performing data writing on a data address corresponding to the ...

English pronunciation correction method and system

The invention provides an English pronunciation correction method and system, and the method comprises the steps: firstly obtaining pronunciation data features and standard pronunciation data features of a speaker; according to the pronunciation data characteristics of the pronunciator and the standard pronunciation data characteristics, local pronunciation difference data are calculated by using a DTW algorithm; secondly, carrying out dichotomy on the local pronunciation difference data by adopting V k-means clustering algorithms to obtain the possibility that each k-means dichotomy result falls into a local optimal solution; and finally, according to the possibility that each k-means dichotomy result falls into a local optimal solution, completing a self-adaptive pronunciation error division result. And marking and correcting the pronunciation error division result to complete English pronunciation correction. According to the method, multiple clustering algorithms are used for clustering ...