17617results about How to "Meet the needs of use" patented technology

The invention discloses an electric driving fracturing type power supplying semitrailer. The electric driving fracturing type power supplying semitrailer is characterized in that a high-voltage switch, a transformer and two rectifying unit sets are adopted to correspondingly drive a plurality of high-voltage converting units and a plurality of low-voltage converting units through common DC buses.The whole electric driving fracturing type power supplying semitrailer is small in size, compact in arrangement, and economic; the common high-voltage switch, the transformer and the rectifying unitsare adopted, so that the wiring of power supplying circuits can be reduced; the equipment quantity and investment output power can be decreased; and the use demand can be met.

The invention discloses an avionics system suitable for a multi-purpose unmanned aircraft. A 1553B dual-redundancy bus framework is adopted in the avionics system. The avionics system consists of a main processor unit, a universal interface unit, a 1553B bus, a mass memory, an airborne monitoring terminal, a task load, an execution mechanism and a sensor assembly. The devices have the connection relationships that: the main processor unit, the universal interface unit, the mass memory, the airborne monitoring terminal and the task load are connected with the 1553B bus through a 1553B special electric connector, and the 1553B special electric connector serving as a bus module connects all the devices attached to the bus together; a steering engine controller is connected with the universalinterface unit through an RS422 interface; and the sensor assembly is connected to the universal interface unit through interfaces of serial RS422/RS232/RS485, an ARINC429 bus, a CAN, analogue AD/DA and discrete DIO and the like. The avionics system has the characteristics of strong multi-task expandability, multi-redundancy high reliability, rich data interfaces and strong calculation and processing capabilities, and can well meet the application requirement of 'one platform and multiple purposes' of the unmanned aircraft.

The invention provides a coffee pot with a function of grinding coffee beans. The coffee pot comprises a water tank and a heater, wherein the water tank and the heater are arranged in a shell; the top part of the shell is provided with an upper cover; the upper cover and the shell form a big coffee pot body; a crushing container which is movably connected with the big coffee pot body is arranged on the big coffee pot body; a water inlet and a water outlet, which are communicated with each other, are arranged on the crushing container, the big coffee pot body is provided with a driving component opposite to the crushing container; and the driving component is in transmission connection with the crushing heating container. A control method for the coffee pot with the function of grinding coffee beans comprises: a grinding step, which comprises that a motor drives a crushing blade on a cutter shaft to rotate so as to grind the coffee beans in a brewing cavity; and a brewing step, which comprises that after being heated by the heater, water in the water tank is fed into the brewing cavity through a hot water spray nozzle to brew and dissolve coffee powder. According to the invention, the crushing heating container is added, so that the coffee pot can brew coffee by using both coffee beans and coffee powder, and meet using requirements of different users.

The invention provides an intelligent cooking device and a working method of the intelligent cooking device. The intelligent cooking device comprises an input module, a taste selecting information analyzing module, a control module and an actuating module, wherein the input module is used for acquiring taste selecting identification information representing user taste selecting information and transmitting the taste selecting identification information to the taste selecting information analyzing module, the taste selecting information analyzing module is used for directly or indirect analyzing the taste selecting identification information into taste selecting indicator information capable of being identified by the intelligent cooking device and transmitting the taste selecting indicator information to the control module, the control module is used for adjusting the cooking process and/or control parameters related to the taste selecting indicator information according to the taste selecting indicator information, and controlling the actuating module to cook food according to the adjusted cooking process and/or the control parameters. By means of the scheme, the intelligent cooking device can conveniently obtain complex and individualized taste selection information of users and cook the food meeting the individualized tastes of different users according to the taste selection information.

The invention relates to a fuel cell metal bipolar plate with the conductive and anti-corrosion plating and a preparation method thereof. Chromium-nitrogen-carbon ternary composite step plating is formed on the surface of the metal bipolar plate by using a closed field unbalanced magnetron sputtering technology, and a pure chromium base layer, a chromium nitride transition layer, a chromium-carbon-nitrogen coexistence layer and an amorphous carbon layer are arranged upwards successively on the surface of the metal bipolar plate. Compared with the prior art, the fuel cell metal bipolar plate with the conductive and anti-corrosion plating and the preparation method thereof combine toughness of the chromium nitride, the corrosion resistance of the chromium carbide and the conductivity of amorphous carbon film fully, and the chromium nitride, the chromium carbide and the amorphous carbon film are composited through a step transition method. The modified metal bipolar plate film base binding force is improved apparently, the corrosion resistance and the conductivity are enhanced apparently, and high-performance and long-time use requirements of the fuel cell metal bipolar plate can be met.

The invention discloses a wearable personnel gait-detection indoor-positioning system and a method therefor. The wearable personnel gait-detection indoor-positioning system comprises attitude sensors, a data acquisition device, a data transmission unit and a data processing unit. The attitude sensors are installed respectively at leg parts and the waist part of a user. A first input end of the data acquisition device is connected to the attitude sensors. A second input end of the data acquisition device is connected to a correction module. The data transmission unit and the data processing unit are orderly connected to an output end of the data acquisition device. The data acquisition device acquires data measured by the attitude sensors. The data transmission unit transmits the acquired data to the data processing unit. The data processing unit carries out data synthesis processing to obtain attitude angles of the corresponding parts, carries out gait detection according to the attitude angles, acquires walk step length and a walk direction according to leg and waist length parameters of the user, and carries out vector superposition of the walk step length and the walk direction to obtain user positions in the room. The wearable personnel gait-detection indoor-positioning system and the method can simultaneously realize gait detection and positioning and has high positioning precision.

The present invention discloses a wearing state detection method of a wearable device and a wearable device. The method includes the following steps that: a sensor is arranged in a region of the wearable device that contacts with the skin of a user, measured values which are outputted by the sensor when the user wears and removes the wearable device are different; a reference value which can indicate whether the wearable device is worn or not is obtained; after wearing detection is started, the measured values are acquired from the sensor according to a preset sampling frequency; whether the wearable device is in a worn state currently is judged based on the measured values and the reference value; and when the wearable device is in a non-worn state, the wearable device is controlled to turn off corresponding functions which are operating. With the wearing state detection method of the wearable device of the invention adopted, the accuracy of the result of wearing detection is high; unnecessary power consumption of the wearable device can be decreased as much as possible, and the comfort of use of the device can be improved; when the wearable device is removed, the corresponding functions of the wearable device that are operating can be automatically stopped without the manual operation of the user required, and therefore, high intelligence can be realized; and the use needs of the wearable device can be satisfied.

The invention provides a battery management main system suitable for a new energy automobile and a control method. The battery management main system includes an MCU module, a battery management module, a current detection module, a liquid crystal display module, a whole set of voltage and insulating performance measurement module, a heat management module, a clock module and a memory module; the MCU module reads current data of the current detection module, total voltage and insulation resistance data measured by the whole set of voltage and insulating performance measurement module and terminal voltage of a single battery and temperature data which are sent by an acquisition module through CAN channels, and estimates internal states SOC and SOE of a battery pack, the heat management module is driven to perform heat management on the battery pack, battery state information and alarm information are sent to the liquid crystal display module, and corresponding diagnostic information is stored in the memory module. The beneficial effects of the battery management main system are that the system can realize utilization and protection an automobile battery to the greatest extent, improve efficiency of energy utilization, saves energy and reduces emissions, and guarantees safety of use.

The invention discloses a tunnel arch center installation operation vehicle. The tunnel arch center installation operation vehicle comprises a machine frame, a travelling mechanism, a traction mechanism, an arch center lifting device for lifting tunnel arch centers which are arranged on the rear part of the machine frame and are needed to be installed one by one, and an arch center transferring mechanism for transferring the arch centers which are lifted by the arch center lifting device one by one through alignment and adjustment; the arch center transferring mechanism comprises a translating trolley which can move forward and backward on the upper part of the machine frame, a lifting mechanism for stably lifting the tunnel arch centers, and a left and right movement mechanism for driving the lifting mechanism to synchronously move left and right; and the translating trolley, the left and right movement mechanism, and the lifting mechanism align and adjust the tunnel arch centers front and back, right and left and up and down respectively. The tunnel arch center installation operation vehicle has a reasonable design, is convenient to assemble, and easy and convenient to operate, safe and reliable in working performance, and good in a using effect, and can solve the problems of large working difficulty in movement and accurate positioning of steel arch centers after lifting during the installation of the conventional steel arch centers, low installation efficiency, large labor intensity and the like.

The invention discloses an air conditioner control method and an air conditioner. The air conditioner control method comprises the following steps of: arranging an infrared sensor in an indoor unit of the air conditioner; controlling the infrared sensor to scan a detected region so as to detect infrared rays in the detected region, and outputting a scanning result; judging whether the detected region has people or not and determining the detected positions of people according to the scanning result; and adjusting an air conditioner running mode according to a judging result. The infrared sensor arranged in the air conditioner automatically detects information of people in environmental space, and the air conditioner running mode is automatically regulated according to a detected result, so that the running of the air conditioner is intelligently controlled.

The invention provides an electronic key sharing service system for house renting. Asymmetric encryption operation is carried out by using user identification information to generate a uniquely corresponding public renting key and a uniquely corresponding private renting key, wherein the private renting key is used for generating an electronic private key with an established unique corresponding relationship between an individual user and an intelligent electronic lock in an encrypted mode and the public renting key is used for executing delocking identification verification with user individual variation for decryption of the electronic key by the smart electronic lock. The private renting key is kept by a private key management server to guarantee security of the distribution and delocking process of the electronic key. Possible different using requirements for randomness, individual variation, and security in house renting sharing can be met well; convenience of the system in house renting sharing application is improved; the convenience degree of housing renting is enhanced; and development of the intelligent door lock industry can be promoted. Therefore, the system has the broad market promotion and application prospects.

The invention relates to a radar target intermediate frequency (IR) echo simulation system based on multi-beam amplitude-comparison angle measurement and a control method thereof, relating to the field of radar target echo simulation. The system comprises three target echo simulation boards and an arbitrary waveform generator instrument fixture, wherein the echo simulation boards are designed with a computer module PC104, a field programmable gate array (FPGA), direct digital synthesis (DDS) technique and a simulation circuit as cores; and the arbitrary waveform generator instrument fixture is designed with instrument programming control as the core. According to the invention, simultaneous 6-channel simulated target IR echo simulation of the radar of the multi-beam amplitude-comparison angle measurement system is realized, parameters of the simulated target echo such as distance, delay, echo amplitude, Doppler shift, pattern, direction pattern modulation, noise superposition and the like can be controlled, single-channel switching and output of dual-beam echo is realized, and the test use requirement of the radar signal processor of the system is met. In the invention, the arbitrary waveform generator instrument frock is utilized, thus improving the amplitude precision of the output echo signals; and the control program in the FPGA in the target echo simulation boards is designed by the soft IP core, thus providing convenience for hardware transplanting and clipping.

The invention discloses a cam indexer swinging leftwards and rightwards. The cam indexer is characterized in that an output shaft is longitudinally supported on one side of the inside of a box through upper bearings and lower bearings, a rotating tower is arranged in the middle of the outer wall of the output shaft, two protrusions are arranged on one side of the rotating tower, a gap is formed between the protrusions, an input shaft is transversely arranged on the other side of the inside of the box, a cam is arranged on the input shaft, and a curved convex strip in S-shaped distribution is arranged on the outer surface of the periphery of the cam and inserted into the gap between the protrusions on the rotating tower. Through the above arrangement mode, a curved groove in the cam is subjected to three-dimensional programming and machined through CNC numerical control, the cam can rotate by 360 degrees in a gapless manner to drive the output shaft to realize intermittent leftward-rightward swinging so as to drive a manipulator connected on the output shaft to work, and using needs of users are met to greatest extent.

The invention discloses a context sentiment classification method and system based on user comment text. The method comprises the following steps that multiple pieces of user comment text are obtained; word segmentation is conducted on the pieces of user comment text; the pieces of user comment text subjected to word segmentation are trained, and therefore a candidate feature set is obtained; effective features are extracted from the candidate feature set according to context structure features, and therefore a training set is obtained; a classification model is trained according to the training set, sentiment classification is conducted on the pieces of user comment text through the classification model. By means of the method, the effective features are extracted according to the context structure features, sentiment classification is achieved, the classification precision is improved, and the sentiment tendency of users in text can be more easily and conveniently identified.

The present invention discloses a mobile image processing device, a processing method of utilizing the mobile image processing device, and the use of the mobile image processing device. The mobile image processing device is equipped with a transmission module communicated with an external device, a controller and one or two cameras, the image acquisition planes of the two cameras are in a same plane, and each camera comprises a built-in light filter switcher connected with an infrared cut-off light filter, a full spectrum optical lens and a near infrared narrowband light filter. The controller controls the light filter switchers of the two cameras to switch the different light filters, thereby forming a shooting mode of different combinations, and improving the user experience. The present invention also discloses a biological image information processing method to identify whether a shot object is a biology living body or to encrypt and transmit the identified biological image data. The present invention also discloses a 3d image shooting method to provide the image data acquisition preparation for the 3D video and the 3D modeling. The device of the present invention is wide in use, and can satisfy the usage demands of different users.

The invention discloses a calibration device of a laser alignment device and a method for measuring indication errors of the laser alignment device through the calibration device. The calibration device comprises two mutually independent rotation shafts capable of rotating for 360 degrees. One of the rotation shafts is used as a reference shaft and the other rotation shaft is capable of moving, pitching and deflecting in the horizontal direction and vertical direction. By setting the rotation angles of the rotation shafts, and adjusting the horizontal and vertical displacement quantity, pitching quantity and deflection quantity of the other rotation shaft, measurement of the displacement quantity in the horizontal and vertical directions, the rotation angle quantity of an inclinometer and indication errors of alignment deviation of a position sensitive sensor of the laser alignment device can be achieved. According to the invention, operation states of the laser alignment device in actual working processes can be precisely simulated; the standard alignment deviation quantity of measurement shafts can be displayed in a real-time and direct manner; calibration results are quite precise; and operability of the measurement process is quite high.

The invention discloses a flexible connecting mechanism which comprises a fixed supporting piece, mobile supporting pieces slidably or rotatably connected with the fixed supporting piece and a flexible piece. The flexible piece can be bent and can cover on the fixed supporting piece and the mobile supporting pieces, and at least one end of the flexible piece is slidably connected with the fixed supporting piece or the mobile supporting pieces. According to the flexible connecting mechanism, the area of supporting to the flexible piece can be changed through relative sliding or rotating of the fixed supporting piece and the mobile supporting pieces, and when the flexible piece is a flexible screen or is used for arranging a part of the flexible screen, the display area can be changed by changing the supporting area so that the size of the screen of electronic equipment can be flexibly changed according to different use needs, and the diversified use needs of a user are met. The invention further provides the electronic equipment provided with the flexible connecting mechanism.

The invention discloses wear-resistance halogen-free low-smoke expansion flame-retarding polyolefin sheath plastic and a preparation method thereof. The plastic comprises the following components in part by weight: 50 to 80 parts of polyolefine resin, 0 to 20 parts of compound resin, 3 to 15 parts of grafted material, 10 to 60 parts of halogen-free expansion flame retardant, 0.5 to 3 parts of coupling agent, 0.5 to 1.5 parts of antioxygen and 1 to 10 parts of nano silicon carbide. In the thermoplastic halogen-free low-smoke expansion flame-retarding polyolefin sheath plastic and the preparation method thereof, the nano silicon carbide is added into a blend system, so the wear resistance of the thermoplastic halogen-free low-smoke expansion flame-retarding polyolefin sheath plastic is improved, the thermoplastic halogen-free low-smoke expansion flame-retarding polyolefin sheath plastic meet the requirement for normal use in severe environments and the service life of the thermoplastic halogen-free low-smoke expansion flame-retarding polyolefin sheath plastic is prolonged.

The invention discloses a combination feature vector and deep learning based sentiment classification method and device. The combination feature vector and deep learning based sentiment classification method comprises the steps of obtaining multiple comment texts from internet; carrying out word segmentation for the multiple comment texts so as to obtain each sub-constituent words; obtaining a lexical feature of a sentence; extracting a syntactic feature of each comment text; obtaining a combination feature vector of each user comment text based on the lexical features and the syntactic features; and training a deep learning model based on the combination feature vector and further obtaining an optimal classification result through the deep learning model. According to the combination feature vector and deep learning based sentiment classification method and device, the comment text can be subjected to sentiment classification through the combination feature vector and the deep learning, the optimal classification result can be accordingly obtained, the classification precision is improved, and emotional tendency of a user in the text can be better identified; and the combination feature vector and deep learning based sentiment classification method is simple and convenient.