46results about How to "Simple module" patented technology

The invention provides an on-line prediction method of micro-milling chatter. A monitoring signal in a micro-milling machining process is obtained through a sensor, wherein the monitoring signal comprises a cutting force signal, a sound signal and an accelerated speed signal. The on-line prediction method of the micro-milling chatter comprehensively utilizes the milling force, the accelerated speed and the sound signal of the micro-milling machining process to represent a machining state, the on-line monitoring of the micro-milling machining process and the early prediction of the milling chatter are realized through a multichannel singular spectrum analysis algorithm and a GHMM (General Hidden Markov Model), a necessary technical means is provided for chatter inhibition research, so that a monitoring system module is greatly simplified, and the instantaneity of a machining state monitoring system is obviously improved.

The invention provides a multi-angle one-step imaging shooting device. The shooting device can receive light, which is emitted / reflected to different angles, of a shot object or light emitted / reflected by shot objects positioned at different angles, focuses the received light from the different angles to the same photosensitive module to image, multi-angle shooting such as annular shooting, wide-angle shooting and overview shooting can be implemented by the shooting device, and three-dimensional pictures of the shot objects can be recovered according to one-step imaging data. The multi-angle one-step imaging shooting device can perform overview shooting at one step by using a photosensitive element only. Moreover, the shooting device can be made of a flexible material; and the shooting range of the shooting device can be changed by changing the shape of a daylighting surface of the shooting device.

The invention relates to a method for detecting the appearance of an object and a depth neural network model. The method for detecting the appearance of an object comprises the following steps: building a depth neural network model; deep neural network model has the ability to distinguish the appearance through the cycle of training and learning; according to the large number of cyclic training and learning, the depth neural network model gradually converges to obtain the optimal weight of each eigenvalue; convolution operation is carried out on the appearance picture of the object to be detected, and the classification result is obtained according to the set probability interval value. The depth neural network model comprises a training module, an evaluation module and a prediction module. The invention solves many problems existing in manually formulating judgment rules of object appearance classification, and overcomes the problems of low manual operation efficiency or low accuracyof traditional automatic judgment. At the same time, because of its sustainable self-iterative upgrading, its recognition efficiency will be improved in theory. The module of the invention is simple,the hardware cost is low, and the application range is wide.

The invention relates to a method for shortening the operation time of a remote control of an LCD TV production line, which comprises a special remote control transmitter for the production line, and an external remote control signal receiver, an infrared remote control signal detection module, a special remote control processing module for the production line, a user remote control processing module and a special remote control processing module for stopping the production line which are arranged on an LCD TV set; and the special remote control transmitter for the production line sends infrared signals to the LCD TV set in the form of special codes, the external remote control signal receiver receives and analyzes the infrared signals sent by the special remote control transmitter for the production line or the user remote control, the infrared remote control signal detection module judges to transfer the special remote control processing module for the production line, the user remote control processing module or the special remote control processing module for stopping the production line according to the received infrared signals, and the special remote control processing module for the production line is used for detecting the performance of corresponding items of the LCD TV set. The system is beneficial to simplifying the detection operation and shortening the performance detection operation time of the LCD TV set, is simple to operate and has good use effect.

The invention discloses a double-interface intelligent card simulator based on a field programmable gata array (FPGA), which is high in efficiency and reliability, low in cost and high in performance and comprises a simulation antenna, a contact type card surface, an analog front end and a simulation unit. The analog front end is in non-contact type communication with the simulation antenna through a wireless passage, communication between the analog front end and the simulation antenna follows an international standardization organization (ISO) / international electrotechnical commission (IEC) 14443 TypeA international standard, contact type communication between the contact type card surface and the analog front end is achieved through a wire passage, communication between the analog front end and the contact type interface follows an ISO / IEC 7816 international standard, the simulation unit is communicated with the analog front end through the wire passage, and the analog front end and the simulation unit follow a universal serial bus (USB) v 2.0 communication protocol. The simulation antenna and the contact type card surface simulate communication modes with a reader under two working modes, the simulation unit is achieved through an FPGA chip, the analog front end is achieved through a radio frequency chip, and the priority of the communication mode between the analog front end and the contact type interface is higher than that of the communication mode between the analog front end and the simulation antenna.

The invention discloses a wireless power supply device and a wireless power supply system for electric equipment. During the electromagnetic field or electric field coupling of wireless transmission of electric energy, matching opposite property of a power supplying-receiving coil is very extremely sensitive to the transmission efficiency of electric energy. A power supply end of a tramcar is composed of rail lines and a mobile power supply block, wherein the rail lines are connected with a power supply and are arranged in sealed pipelines on the ground between rails below the bottom of the tramcar, the mobile power supply block is connected with the rail lines and opposite to a current collecting shoe on the outer side of a sealed body wall through magnetic attraction, and the effects that the mobile power supply block which is always opposite to the power supplying-receiving coil advances along with the tramcar synchronously and provides close-range wireless power supply in real timeare formed; the configuration amount of energy storage batteries of the tramcar can be reduced when the real-time power supply electric energy is directly consumed in tramcar movement, thereby savingcost, space and weight, enhancing space utilization effectiveness, aesthetic degree and movement efficacy, and having great comprehensive value; and through marking and positioning a power supply coil when the electric vehicle is being charged, a power receiving coil automatically corrects position by means of an alignment mechanism, thus energy transmission efficiency is improved, and a foundation is laid for implementing a simple and beautiful parking lot and acquiring all-weather non-contact charging for outdoor parking spaces.

The invention discloses a motor control circuit, a vehicle and a battery self-heating control method. The battery self-heating control method comprises the following steps: receiving a battery heating command, and controlling a battery to enter a first heating mode or a second heating mode according to a judgment signal; in the first heating mode, switching off a first switch module, switching off a third switch module, and switching on a second switch module, and alternately switching on the upper bridge arm and the lower bridge arm of a bidirectional inverter; and in the second heating mode, switching off the first switch module, switching on the second switch module, the third switch module, and alternately switching on the upper bridge arm and the lower bridge arm of the bidirectional inverter. The motor control circuit provided by the invention has two battery heating modes under the cooperative action of the bidirectional inverter and each switch module, and the battery self-heating control method can efficiently heat the battery according to the temperature of the battery and the use scene of the vehicle, thereby effectively reducing the development cost of the whole vehicle, simplifying the module and reducing the development difficulty.

The invention relates to an automatic water collection system for an unmanned watercraft. The automatic water collection system comprises a deploying and retracting mechanism, a water collection mechanism and a storage mechanism, wherein the deploying and retracting mechanism is fixed on a deck of the unmanned watercraft; the water collection mechanism is mounted inside the storage mechanism; andthe storage mechanism abuts against the deploying and retracting mechanism and is fixed on the deck of the unmanned watercraft. The automatic water collection system for the unmanned watercraft designs a set of electromechanical combined collection system according to the requirements of the water collection task of the unmanned watercraft. In the structural design, the automatic water collectionsystem mainly designs a master / slave wheel mechanism, and also ingeniously adds a spring-type pressure regulator so as to realize the task of deploying and retracting a water collection pipe. In the electrical design, the automatic water collection system integrates five peristaltic pumps for water collection and refrigeration equipment in a refrigerator, and is provided with the functions of liquid level sensing, temperature digital display and the like. In general, the automatic water collection system for the unmanned watercraft is ingenious in design, simple in structure and functionally complete.

The invention discloses a Flash file storing system. The system comprises a Flash file storing block managing module, a file information managing module, a file operating and managing module and a specific operating and managing module for a signal system. According to the Flash file storing system, the actual storing space is managed by effectively arranging block addresses of a Flash chip array, the block addresses of the file system meet the using requirement of the high-speed Flash file storing system, a set of flexible file managing APIs are provided, and meanwhile a specific operation interface is provided for a signal recording system.

The invention discloses an embedded refrigerator, and relates to the technical field of embedded refrigerators. The embedded refrigerator comprises a cabinet, a refrigerator carrier, a condensing device and a temperature sensing element, and the refrigerator carrier is installed in the cabinet in a clearance mode; side wall air ducts are formed between the cabinet and the side walls of the refrigerator carrier; a back air duct is formed between the cabinet and the back of the refrigerator carrier; the back air duct communicates with the two side wall air ducts and a cabinet air outlet formed in the top of the cabinet; the condensing device comprises a condensing air duct, a condensing fan and a condenser; the condensing fan is positioned in the condensing air duct and is close to an air inlet; and the condenser is externally hung on the back of the refrigerator carrier or installed in the side walls of the refrigerator carrier. According to the embedded refrigerator, the condensing airduct is formed at the bottom, the mode that air enters through the air inlet of the condensing air duct and goes out through the top cabinet air outlet is adopted, the structure that the condensing air duct communicates with the side wall air ducts and the back air duct is simple, and it can be guaranteed that the operation reliability of the refrigerator with the condenser externally hung on theback of the refrigerator carrier or installed in the side walls of the refrigerator carrier is higher.

The invention discloses an automatic clamp upper cover fetching device for automated production of circuit boards. The automatic clamp upper cover fetching device comprises a rack, a positioning mechanism and a die fetching mechanism, the positioning mechanism and the die fetching mechanism are mounted on the rack, a first mechanical arm is horizontally inserted at the top of the rack, a second mechanical arm is vertically inserted on the first mechanical arm, the die fetching mechanism is mounted on the second mechanical arm, a lifting rod is mounted on the second mechanical arm, a sucker frame is fixed at the lower end of the lifting rod, a lifting cylinder is fixed on each of two sides of the sucker frame, a lifting cylinder extensible rod is connected with a lifting claw, a sucker is mounted on the undersurface of the sucker frame, upper cover buckles are symmetrically arranged on two sides of a clamp upper cover, buckle grooves are symmetrically formed in two sides of a clamp baseplate, and the upper cover buckles are embedded in the buckle grooves for matched connection. The automatic clamp upper cover fetching device can realize automated clamp upper cover fetching during circuit board assembling and is suitable for large-batch production, stable in control and convenient to maintain.

A balancing weight dispenser has a balancing weight storage space for storing a belt of balancing weights on a reel, a belt guide, and a cutter at one end of and / or along a length of the belt guide. The cutter comprises a knife, which is fixedly attached to the balancing weight dispenser. For delivery of a required amount of balancing weight mass, the belt of balancing weights is pulled from the reel until the desired number of balancing weights has been obtained. In the next step, the belt of balancing weights is cut, preferably between two adjacent balancing weights, to separate the selected portion of balancing weights from the remaining belt of balancing weights. The remaining belt falls back to the guide and remains in a desired position for receiving the next portion of balancing weights. This manually operated balancing weight dispenser can be provided at significantly lower costs compared to the automated high performance balancing weight dispensers as known from the prior art. It is very robust and has no serviceable parts.

The invention discloses a radar distance tracking system based on α-β and LMS combined filtering, which includes a radar measurement information acquisition module, an LMS speed filter module and an α-β distance filter module, wherein the radar measurement information acquisition module is an LMS speed filter The module and the α-β distance filter module provide information data support, and the LMS speed filter module and the α-β distance filter module process the information data. The present invention can take into account both calculation efficiency and filtering precision by separately filtering the distance and the speed, and is especially suitable for the application of the high-speed mobile radar platform. The invention also relates to a radar distance tracking method based on α-β and LMS joint filtering.

The invention belongs to the technical field of vehicle-mounted voice interaction, and discloses a vehicle-mounted cloud intelligent voice interaction system, method, device and terminal, and the method comprises the steps: a wake-up module of a vehicle-mounted voice assistant carries out the monitoring; a sound acquisition module continuously receives sound; the audio information is sent to the cloud through the HTTP library of the RTOS; continuous voice activity detection is performed ; a voice input ending instruction is sent ; cloud processing is performed ; the HTTP return packet is analyzed; audio data returned by the cloud is played; a vehicle-mounted instruction returned by the cloud is executed ; and the vehicle-mounted voice assistant system is closed. According to the invention, the voice information of the user is sent to the cloud for processing by using the HTTP protocol, vehicle-mounted computing resources are occupied as little as possible, meanwhile, a mature HTTP framework in the RTOS is utilized, the engineering complexity is reduced, the reusability and maintainability of engineering codes are improved, the computing resources occupied by the vehicle-mounted intelligent voice interaction system are effectively reduced, and the engineering complexity is reduced.

A device for performance testing and durability testing of an automobile tailgate. The automobile tailgate (1) includes a bearing platform (11), a mechanical mechanism (12), and a fixed beam (13), wherein the mechanical mechanism (12) includes a set of Lifting hydraulic cylinder, a group of overturning hydraulic cylinders, the cross-section of the fixed cross beam 13) is square, and is used to fix the tailgate of the car on the main beam of the car. The device (4), the hydraulic control device, and the position detection module; make up for the problem in the prior art that there is no vehicle lifting tail plate and no professional testing equipment.