31results about How to "Strong portability" patented technology

The realization method of maintaining file states coherence in checkpoint fault-tolerance technology belongs to file checkpoint technology field in fault-tolerance technology, which is characterized in that a checkpoint setting and rollback recovery file system comprising a file system and a function library in operating is built between a bottom file system and a user program, wherein, the mapping relation of system mount point and actual data road is mapped by address mapping mould; file operation claims of user is executed by a journal management mould; operated file states are renewed by a state tracking mould; files' access conflicts are detected by a conflict detection mould; submission operations of buffer mode are executed by a data submission mould according to file state and the buffer data is written back to the magnetic disk. The invention has following advantages: integrality, transparence, easy deployment, portability, low expense and self-adaptability, and especially is suitable for a high performance computer to ensure the checkpoint can exactly recover file state coherence after error occurs.

The invention belongs to the field of image detection and observation and discloses a multi-bent-portion device and an industrial endoscope. The multi-bent-portion device comprises a bent neck, a mounting head, an operating part and a telescopic support rod. One end of the bent neck at least comprises two snake bone shaped components, multi-direction bending can be realized under control of the operating part, and the telescopic support rod is capable of strongly supporting a flexible tube of the bent neck. The industrial endoscope based on the multi-bent-portion device comprises an image acquisition system, a connector, a handle and a liquid crystal display control device 5, and video monitoring and analysis of narrow areas, complex environments and dangerous environments can be realized. The multi-bent-portion device and the industrial endoscope are flexible in operation, high in portability, suitable for complex environments with bent pipelines, steps and the like and widely applicable to industrial field or the medical field.

The invention relates to a liquid flow non-magnetic detector and a detection method thereof. The detector comprises a microprocessor unit, a power supply control circuit and an excitation control circuit which are connected with the microprocessor unit, and an LC oscillating circuit, an LC oscillating detection circuit, an envelope detection circuit and a trigger circuit which are connected in sequence, wherein the output ends of the power supply control circuit and the excitation control circuit are respectively connected with two ends of the LC oscillating circuit, and the trigger circuit is connected with a timer capture input end of the microprocessor unit. The LC oscillating circuit is located above an impeller comprising an insulating area and a conducting area. The detection method comprises the steps that an oscillating wave output by the LC oscillating circuit is processed by the LC oscillating detection circuit, the envelope detection circuit and the trigger circuit and then is subjected to timer capture by the microprocessor unit, the position changes of the conducting area and the insulating area of the impeller are judged, and finally liquid flow is calculated. The measuring distance is larger, the application range is wide, the singlechip microcomputer selection limitation is less, the cost is reduced, and the universality is good.

The invention relates to an electronic storage medium data wiping device and a data wiping method and discloses a portable electronic storage medium data wiping device and a data wiping method based on the same for solving the problems of the existing data wiping device that fewer functions are provided, the destroying speed is low, the portable degree is low and the wiping result is uncertain. The data wiping device provided by the invention comprises a power-on key, an equipment interface, a liquid crystal display, a starting key, a mode select key, an up/down selection key, a reporting browse key, a power input interface, a battery and a data wiping control module. The data wiping method comprises the following specific processes of: recognizing information of an equipment disk; displaying that the interfaces are in a stage of waiting for execution; detecting whether the disk has an HPA(high-power amplifier) hiding fan-shaped region and a DCO (data control office) hiding fan-shaped region; if so, removing the HPA and the DCO; if not, neglecting the fan-shaped regions; and selecting a wiping mode: rapid wiping or user-defined wiping; formatting the disk, and generating an wiping recording report. The data wiping device and the data wiping method provided by the invention are used for wiping data of different media.

The invention relates to a method for energy conversion of a solar-powered unmanned aerial vehicle. An adopted device includes an energy conversion platform and an unmanned aerial vehicle battery placed in an unmanned aerial vehicle. The method for energy conversion includes the steps that a photovoltaic cell panel receives solar energy and charges a battery pack, and a controller protects the battery pack from overcharge and overdischarge; when the unmanned aerial vehicle hovers over the platform and starts charging, a transmitting terminal communication module starts charging and controls apower supply voltage after receiving a receiving voltage request from a receiving terminal; a transmitting terminal wireless charging module reverses the direct current voltage to an alternating current, energy exchange is achieved through a transmitting terminal coil, and a high-frequency electromagnetic field is generated; during charging, the communication with a receiving terminal communication module is maintained; the receiving terminal communication module monitors a receiving voltage and feeds the receiving voltage back to the transmitting terminal communication module, and a transmitting voltage is adjusted and maintained at a safe charge voltage.

The invention discloses a human body action recognition method based on skeleton key point detection, and the method comprises the steps: obtaining a plurality of video segments of each standard action of a computer vision system, and carrying out data preprocessing of each video segment; carrying out key point information extraction on each frame of image of each video segment after data preprocessing by adopting a key point detection network to form a plurality of key feature vectors of each video segment; establishing a pre-action recognition model corresponding to each video segment according to the plurality of key feature vectors of each video segment; extracting real-time key point information of the real-time human body motion video by using a key point detection network to generate a real-time key feature vector; adopting a human body motion recognition algorithm to recognize human body motions. The method is high in recognition precision, a weighted K-nearest neighbor algorithm is used for recognizing human body actions, key feature vectors which are more balanced and higher in anti-noise capacity are obtained by endowing all distance points with different weights, and therefore a final recognition result is more accurate.

The invention relates to a tool for filling and backwashing an oil well, which is characterized in that: the middle part in a filling outer tube (1) is movable connected with a filling central tube (2), so the tool can fill the oil well for two or more times, reduce cost, shorten construction period, reduce lifting time, improve sand prevention quality, prolong sand prevention valid period, achieve a large sand prevention diameter, form a high-performance sand blocking screen, have high fluid producing intensity and carrying capacity, reduce the pollution on an oil layer and make well repair easier, and is particularly suitable for filling the oil well for multiple times and backwashing during oil field operation.

The invention discloses a portable emergency command system, which is characterized by comprising a host microcomputer, audio and video equipment, terminal equipment and individual positioning audio and video communication equipment, wherein the host microcomputer comprises a VGA (video graphics array), a digital video recorder, a remote audio and video server, a four-picture divider and a PC (personal computer) server; the audio and video equipment comprises a curtain motor control circuit, a master control circuit, an LED (light-emitting diode) driving board, an interface circuit and a speaker; the terminal equipment comprises a host microcomputer power supply, a power interface, a signal transfer board and a switch. The portable urban emergency command system has complete command post functions, can be used for finishing decision-making, commanding and scheduling within first time, is high in portability, reliability and maintainability, easy to store, arrange and operate, economical and practical, and can be quickly built and used on the spot.

A mobile real-time detection device for blade damage of a wind generating set apparatus comprises the following parts: a remote control flying device in electric signal connection with a remote control device; a camera arranged on the remote control flying device and carrying out changes of camera angles under the control of the remote control device; a video capture and compression system for converting image signals obtained by the camera into digital signals and transmitting the digital signals through a wireless emitter to a ground wireless receiver; a video decoding system for receiving the digital signals from the ground wireless receiver and converting the digital signals into image signals; and an image display device electrically connected to the video decoding system and for displaying the image signals on a real-time basis. According to the invention, wind blade of a traditional wind generating set is provided with the remote control flying device with the camera, and the image signals are acquired under the control of the remote control device, so as to monitor defects of the wind blades on a real-time basis. The device not only has strong portability, simple operation and high sensitivity, but also has strong timeliness and is worthy of popularization and application.

The invention relates to an extended content display method and device and a storage medium, and belongs to the technical field of display control. The method comprises the steps of acquiring the position of a physical display screen of a main display device; creating a virtual extension screen on the periphery of the physical display screen according to the position of the physical display screen; obtaining extended display content corresponding to the virtual extended screen from the main display device; and displaying the extended display content in the virtual extended screen. The virtualextension screen is created through the see-through near-eye display device, the extension display content is displayed in the virtual extension screen, compared with a physical extension screen, thenumber of the virtual extension screens is not limited by the number of video output interfaces of the main display device, the expansibility is higher, and the portability is higher. In addition, thevirtual extension screen is created on the periphery of the physical display screen of the main display device, the physical display screen cannot be shielded, and it is guaranteed that the user cansee the physical display screen and the display content in the virtual extension screen at the same time.

The invention provides a hidden file management system based on steganography. The hidden file management system based on steganography comprises a storage space integration unit and an operation unit, wherein the storage space integration unit is used for abstracting storage space of a carrier file library into continuous storage space formed by splicing a plurality of data blocks; and the operation unit is used for formatting, storing, extracting and deleting files. A safe data storage mode is implemented, scattered storage spaces in a carrier file are integrated, and the hidden file management system is apparent to users, and is convenient to operate and high in portability.

The invention discloses a kinetics and dynamics performance test signal collection device of a marine diesel engine valve actuating mechanism. The device comprises multiple test sensors, a dynamic signal collection system and a computer, wherein the multiple test sensors are connected with a valve actuating mechanism to be tested and are used for collecting the accelerated speed, the displacement, the strain, a crank angle and a top dead center signal of the marine diesel engine valve actuating mechanism; the dynamic signal collection system is connected with the multiple test sensors and is used for amplifying and filtering collected signals; and the computer is connected with the dynamic signal collection system and is used for analyzing and processing the collected signals and displaying and recording a curve of the collected signals changed along with the crank angle. The performance test signal collection device of the marine diesel engine valve actuating mechanism, disclosed by the invention, can carry out synchronous test for multiple parameters such as the kinetics and the dynamics of the diesel engine valve actuating mechanism.

The invention provides equipment for drawing an instrument board. The equipment comprises a PC (personal computer), a compact disc face printer and an instrument board fixing base, the PC is connected with the compact disc face printer, the instrument board fixing base is fixedly mounted in a compact disc clamping groove of the compact disc face printer, thickness of the instrument board fixing base is smaller than or equal to depth of the compact disc clamping groove, and the instrument board fixing base is used for fixing the instrument board in the compact disc clamping groove. The equipment has the advantages that the equipment is low in cost, high in portability, high in maintainability and high in universality, so that production efficiency and applicability are improved.

The invention discloses a device for repairing a deepwater net cage netting. The device comprises an open frame type underwater robot and a deepwater net cage netting repairing mechanism; the deepwater net cage netting repairing mechanism comprises a netting hole penetrating mechanism, a wire feeding mechanism, a rotary knotting mechanism, a steel wire cutting mechanism and a steel wire clamping mechanism; the netting hole penetrating mechanism comprises mechanical claws and a control box for controlling the mechanical claws; the wire feeding mechanism and the steel wire cutting mechanism are both fixedly arranged in the control box; the steel wire clamping mechanism and the rotary knotting mechanism are both arranged between the two sets of mechanical claws; and the open frame type underwater robot is detachably connected with the deepwater net cage netting repairing mechanism through a connecting shaft. When large holes are formed, the opening angle is increased by driving the two mechanical claws, and the large holes of the netting are repaired in combination with multiple times of repairing, so that huge economic losses and biological environment pollution caused by escape of large-scale fishes are avoided. And the device is high in realizability, safe and reliable in operation, high in portability and high in integration degree.

The invention provides a hybrid energy storage configuration method for a ''light storage'' power generation system. The method can be used for carrying out hybrid energy storage planning on a photovoltaic power station and comprises the following steps of S1, arranging output data of the photovoltaic power station and meteorological data of a place where the power station is located, and countinga time proportion of each typical weather day; S2, decomposing the solar photovoltaic output of each typical weather day to obtain a target output curve, a high-frequency fluctuation component and alow-frequency fluctuation component corresponding to each typical weather day; S3, drawing high-frequency and low-frequency fluctuation component histograms and fitting a probability density curve incombination with a daily time proportion of each typical weather; S4, selecting an appropriate hybrid energy storage combination according to the operation period of the photovoltaic power station, the number of energy storage cycles and the hybrid energy storage power determined in the S3; S5, constructing a hybrid energy storage capacity optimization model taking the minimum full life cycle costand the maximum target output satisfaction degree as targets; and S6, solving by adopting a multi-objective optimization algorithm to obtain an optimal hybrid energy storage capacity configuration scheme of the ''light-storage'' power generation system.

The invention relates to a portable up-conversion fluorescence detector, and belongs to the technical field of image recognition. The portable up-conversion fluorescence detector comprises an instrument main body and a replaceable sample module, wherein the instrument main body is internally provided with a main control chip, one end of the main control chip is connected with a light source module, the other end of the main control chip is connected with a detector, the main control chip is further connected with a battery, a wireless module and a USB charging module; the replaceable sample module is connected with the instrument main body through a buckle and internally provided with a sample bin, the light source module is detachably connected with one end of the sample bin through an optical fiber joint, the other end of the sample bin is detachably connected with the detector through a lens element; the replaceable sample module is provided with different sample bins and light pathsystems according to different sample types; the detector is internally provided with a convex lens and a photosensitive element and used for collecting fluorescent signals excited by the sample andimaging; and the main control chip is used for receiving the sample fluorescence signal imaging information collected by the photosensitive element, carrying out image recognition and processing and calculating the sample concentration.

The invention discloses a protocol analysis method suitable for multiple buses, and the method does not need to redesign a protocol when a bus is changed or a system is transported, thereby improvingthe adaptability between systems. The protocol and the protocol analysis method provided by the invention are suitable for various buses, the bus protocol design and analysis method is separated fromthe characteristics of a bus physical layer, and the protocol design and analysis method has higher efficiency and stronger transportability.

The invention discloses an omnidirectional underwater robot which comprises an open-frame type robot, which comprises a frame, wherein top propellers are arranged at the four corners of the top end of the frame; a mechanical arm which is arranged at the front end of the frame; a rotating holder which is arranged in the frame, and comprises a motor fixing plate, a bearing upper fixing plate and a bearing lower fixing plate which are sequentially and fixedly connected from top to bottom, wherein a cylindrical roller bearing is fixed between the bearing upper fixing plate and the bearing lower fixing plate, and two bearing clamping inner plates are sequentially arranged on the inner edge of the cylindrical roller bearing from top to bottom; a servo motor is fixed to the motor fixing plate, a steering engine fixing plate is fixedly connected to the bottom end of the bearing clamp inner plate located at the bottom, a plurality of full-waterproof steering engines are arranged at the top end of the steering engine fixing plate, and underwater propellers are installed on the full-waterproof steering engines. The robot is high in realizability, safe and reliable in operation, high in portability, high in carrying performance, simple in structure and capable of providing reliable performance improvement and achieving the effects of energy conservation and emission reduction.

The invention discloses a portable small-scale sauna room. The portable small-scale sauna room comprises a sauna room body and a heating and humidifying device arranged in the sauna room body, whereinthe heating and humidifying device comprises a steam heating device and a negative ion generator. The portable small-scale sauna room is small and convenient in structure and high in portability, andthe steam heating device and the negative ion generator cooperate to obtain good heating, humidifying and health-care effects.

The invention discloses a distributed power supply equivalent method based on electric vehicle discharge behaviors, which comprises the following steps: simulating and analyzing the travel behaviors of an electric vehicle within one day, and determining the location of each moment; determining a charging and discharging rule of the electric vehicle, and determining a charging and discharging stateof the electric vehicle at each moment in one day in combination with the travel behavior of the electric vehicle; and respectively counting the electric vehicle sets discharged at each moment of each ground point, enabling the electric vehicle sets to be equivalent to a distributed power supply with changed output at each ground point, and enabling the output power of the equivalent distributedpower supply at each moment to be the total electric vehicle discharge power of the ground point where the equivalent distributed power supply is located. Based on the travel behavior of the electricvehicle, the discharge behavior of the electric vehicle is equivalent in the form of a distributed power supply, and the discreteness and randomness of the electric vehicle can be well reflected. Theequivalent distributed power supply has the characteristic of flexible switching, can provide power support for work such as high-load area power supply and system net rack reconstruction, and has a wide application prospect.

The invention provides a mobile phone APP control method of an unmanned aerial vehicle supporting an ROS. The control method comprises the following steps: S1, sensor calibration; S2, posture estimation; S3, wireless data transmission; and S4, unmanned aerial vehicle control. The control method provided by the invention has the advantages that all unmanned aerial vehicles supporting the ROS can becontrolled, the operation is simple, the portability is high, the cost is low, and the university is high; the posture of the smart phone can be accurately estimated, and the unmanned aerial vehiclecan be controlled through stable somatosensory system.

The invention belongs to the technical field of marine air compressors, and discloses a high-pressure air discharge anti-splashing device, which comprises a barrel assembly, a sealing cover assembly and a discharge assembly, wherein the barrel assembly comprises a middle barrel, one end of the middle barrel is open, the other end of the middle barrel is provided with a discharge outlet, the middle barrel is configured to contain high-pressure air, the discharge outlet is configured to be communicated with an external discharge pipeline, the sealing cover assembly is detachably connected to the middle barrel and blocks the middle barrel, the discharge assembly comprises a discharge connecting pipe, one end of the discharge connecting pipe is connected with an air compressor discharging opening, and the other end of the discharge connecting pipe communicates with the middle barrel. According to the high-pressure air discharge anti-splashing device, high-pressure air discharged from the air compressor discharging opening is introduced into the middle barrel through the discharge connecting pipe, and then the high-pressure air is discharged into the external discharge pipeline through the discharge outlet, so that an oil-water mixture is prevented from being directly sprayed out by the high-pressure air, surrounding equipment and floors are prevented from being polluted, and the labor intensity of sailors is relieved; and the device is simple in structure, high in transplanting universality, convenient to manufacture and install and low in cost.

The invention discloses a beryllium-10 isotope-based data-free watershed soil erosion degree evaluation method, which comprises the steps of 1, dividing a to-be-evaluated data-free watershed into a plurality of sub-watersheds, and collecting a plurality of surface soil samples and a plurality of river sediment samples in each sub-watershed; 2, measuring the concentration of beryllium-10 isotope ineach sample; 3, calculating the average value C average of beryllium-10 isotope concentrations of all samples; 4, calculating an average value of beryllium-10 isotope concentration of the surface soil sample of each sub-basin and an average value of beryllium-10 isotope concentration of the sediment sample of each sub-basin, wherein at the moment, the sub-basin i is severe erosion; and if so, thesub-watershed i has a landslide or is eroded by a gully. The method can be used for scientifically evaluating the soil erosion degree of the non-data drainage basin.

The invention relates to the field of chiral detection, and provides a tapered fiber-based chiral molecule detection device, the device comprises an optical fiber, a reflecting layer, a fiber circulator, a light source and a light detector, one section of the optical fiber is a tapered area, the reflecting layer is of a chiral structure and is fixedly arranged on the end face of one end of the optical fiber, the other end of the optical fiber is a reserved end, and the optical fiber circulator is arranged on the reserved end. The reserved end is connected with one port of the optical fiber circulator, the other two ports of the optical fiber circulator are connected with the light source and the optical detector respectively, and the connection mode of the optical fiber circulator meets the requirement that laser emitted by the light source enters the reserved end through the optical fiber circulator, and laser emitted from the reserved end enters the optical detector through the optical fiber circulator. The chirality of the chiral molecules has great influence on the light intensity of the reflected laser, that is, the difference of reflection coefficients of the reflected laser obtained by the two chiral molecules with small chirality characteristic difference is great, so that the device provided by the invention has high chirality detection accuracy and sensitivity.

The invention discloses a dq current detection method of a single-phase pulse rectifier without a phase-locked loop. The influence of SOGI and the phase-locked loop on the dq current observation valuecan be effectively eliminated. The method has high transplantability and is suitable for the single-phase AC/DC or DC/AC device and easy to realize and has high universality.

The invention relates to a hardware circuit of achieving the slid process in the image processing field of the fingerprint identification system. The slid processing part of the background technique as the software form has the disadvantages that: the speed of the software processing is slow in the same clock frequency. The invention completes the image slid processing with the hardware circuit, which comprise the following steps: acquiring the collected fingerprint image data from the collecting part of the fingerprint image; dealing with the fingerprint image data according to I(I, j)=1/4( sigma I( i + k, j) + sigma I( i, j + h)) I (wherein k=-1,1, h=-1,1); getting the new data; saving the new data in the reservoir for the Gabor filtration parts. The invention provides the rapid processing speed and the strong transplantation.

The invention discloses an integrated ring type optical and RFID scanner, and relates to the technical field of scanners. The scanner comprises a camera collection area, an RFID and Bluetooth antenna area, a touch button, a mode switching button, an indicator light, a vibration module area, a charging contact area and a machine body, the camera collection area is arranged on the surface of one side of the machine body, and the RFID and Bluetooth antenna area, the indicator light and the vibration module area are arranged on the upper surface of the machine body, the vibration module area is located between the RFID and Bluetooth antenna area and the indicating lamp, a charging contact area is arranged on the lower surface of the machine body, and a mode switching button is arranged on the surface of the other side of the machine body. According to the integrated ring type optical and RFID scanner, the main control module, the RFID read-write module, the bar code scanning module, the power circuit module, the Bluetooth communication module, the light circuit, the vibration circuit and the antenna module are highly integrated, unnecessary workload expenditure of a sorter is reduced, and meanwhile the scanner is adapted to various application scenes to the maximum extent.

The invention discloses a mobile phone shell type charger. The mobile phone shell type charger comprises a shell, a charging battery, a transformation circuit, a folded plug assembly, a mobile phone power supply contact and a mobile phone buckle; the charging battery is arranged at the back of the shell, the transformation circuit is arranged in the shell and connected with the charging battery, the folded plug assembly is embedded in the shell surface and connected with the transformation circuit through a rotating shaft mechanism; the mobile phone power supply contact is arranged at the edge of the charging battery, and the mobile phone buckle is arranged at the shell edge. Through the adoption of the above modes, the mobile phone shell type charger provided by the invention is installed on the back of the mobile phone to facilitate the carrying, the folded plug assembly can be unfolded to replace the normal charger without additionally carrying a charging transformer and a charging wire rod; the charger has strong portability.

The invention discloses a block-based self-attention real-time end-to-end speech translation method, which comprises the following steps of: preprocessing recorded audio file training data, mapping an ID (Identity) of each speech, a storage path of each speech and a corresponding target language text, and constructing two mapping files; respectively extracting two acoustic features of a Mel filter bank and a Mel frequency cepstrum coefficient of the audio; constructing a target language dictionary by using the training data, wherein the target language dictionary is used for generating a target language text sequence during decoding; cleaning the training data, and converting the training data into a format file required by an end-to-end speech translation model; initializing an end-to-end speech translation model, and training by using a data file in a specific format; in the inference stage, the size of the block is set, and the trained end-to-end speech translation model is used to dynamically encode the source speech, so that a target statement is generated in real time. According to the method, the model has the capability of real-time speech translation, and the decoding speed of the model is improved under the condition that the performance of the model is not reduced.

The invention relates to the technical field of massage equipment, and provides a massage instrument which comprises a machine shell. The power device is arranged on the machine shell and comprises a main output shaft, a speed change device and at least two motors, the main output shaft, the speed change device and the at least two motors are arranged on the machine shell, and the at least two motors are in transmission connection with the main output shaft through the speed change device; the main output shaft is arranged on the machine shell, the massage assembly is arranged on the machine shell and is in transmission connection with the main output shaft, the massage assembly comprises a massage part located on the outer side of the machine shell, the massage instrument is small in size, simple in structure and high in portability, compared with a single motor, the massage instrument obtains the same torsion, and the size of a power device can be greatly reduced.