485results about How to "Flexible placement" patented technology

The invention discloses a method for estimating a discontinuous orthogonal frequency division multiplying channel based on compressed sensing. The method comprises the steps of: designing a channel estimating pilot pattern, selecting a pilot pattern and estimating a channel frequency domain response. The pilot pattern is selected by using two schemes. The first scheme is to maintain a traditional uniform pilot pattern and automatically disable a pilot at a disabled sub-carrier in order that an available pilot presents a natural non-homogeneity. The second scheme is to fix the quantity of the pilots and utilize the following optimized problems to search P sub-carrier transporting pilot marks in the available sub-carrier based on a criterion of recovering matrixes correlation minimization, wherein L is the channel length, P is the number of pilots, and N is the total number of OFDM system sub-carriers. The method of the invention can be applied to various scenes of the disabled sub-carrier. Through the method of the invention with fewer pilots, the acquired channel estimating property and system error ratio property are better than those acquired by using the other methods in prior art.

The invention relates to a direct power-spectral method-based all-weather long drainage basin water quality monitoring and early-warning system, belonging to the technical field of water quality monitoring. The system comprises a plurality of water quality monitoring devices, a cloud data processing platform and a remote monitoring platform; the water quality monitoring devices are placed at a shoreside of a water body, a water surface buoy or other water surface platforms according to needs, used for extracting water quality data of the long drainage basin, use a direct power-spectral method to acquire an absorption spectrum of a monitored water body and sends the monitored data and water quality information to the cloud data processing platform in a wireless transmission manner; the cloud data processing platform summarizes and analyzes the received data and stores into a database; the remote monitoring platform inquires and displays the data stored in the database and realizes the real-time monitoring and early-warning for an all-weather long drainage basin water quality environment. The system can realize the online measuring, real-time monitoring, emergent early-warning, drainage basin analyzing and water environment monitoring of all weathers of the water body in the drainage basin, thus reducing the loss caused by pollution to the water body and ensuring drinking water safety.

The invention discloses a stereo vision sensor integrates a line array camera and an area array camera and a calibration method. The vision sensor can synchronously acquire gray and depth information of an object image. The sensor mainly comprises the line array camera, the area array camera, a laser and other accessories. The line array camera acquires a clear image through line laser illumination, and forms the stereo vision sensor with the area array camera. The line laser is used as the feature of the area array camera image, matches an epipolar constraint to realize corresponding matching of the line array camera and the area array camera image. Three-dimensional coordinate reconstruction is realized through a stereo vision measurement model. The sensor can simultaneously acquire the image information of the object and the spatial depth information corresponding to each pixel in a push-scan manner. The stereo vision sensor provided by the invention can be widely applied to the fields of object recognition, fault diagnosis and the like.

The invention discloses a three-dimensional printing machine fluid extrusion system and an implement method thereof and solves problems that an existing extrusion system is large in material conveying limiting, non-uniform in extruded materials, inconvenient to operate and the like. The three-dimensional printing machine fluid extrusion system comprises a feeding mechanism, an extrusion mechanism and a feeding controlling system which can be used for controlling the feeding mechanism and the extrusion mechanism; the output end of the feeding mechanism is connected with the input end of the extrusion mechanism by a conveying pipe and a three-way pipe; another end of the three-way pipe is connected with a pressure transmitter; the pressure transmitter is connected with the feeding controlling system by a signal line; the feeding controlling system is connected with a power supply and is connected with a three-dimensional printing machine controlling plate or an external driving circuit of an extrusion machine by a material shortening signal line. The three-dimensional printing machine fluid extrusion system can be used for continuous feeding without halting, and achieving high-speed printing and precise flow control, can be suitable for viscous fluid materials such as concrete and ceramic clay, and can be suitable for being used for batch printing of middle-small objects and printing of large objects such as concrete buildings and landscape sculptures.

The invention relates to the field of data acquisition and processing, in particular to a multichannel data acquisition instrument based on time synchronization. In order to solve the problems in the prior art, the multichannel data acquisition instrument based on time synchronization is provided. The multichannel data acquisition instrument is used for data acquisition after being subjected to time correction through a VCO adjusting module, an FPGA and a processor are in parallel connection to conduct data transmission, data collected by a sensor are stored in a memory, data of a data storage chip are read to conduct subsequent data processing, or data interaction is conducted through an internet access and an upper computer, and upper computer data processing is conducted. According to the multichannel data acquisition instrument based on time synchronization, the processor, an FPGA control circuit, an analog-digital conversion and conditioning circuit and a sensor circuit are in mutual connection, and the design of the multichannel data acquisition instrument is achieved. The data acquisition instrument based on time synchronization is applied to the field of high-speed data acquisition.

A grain-state detecting system based on wireless sensor network relates to the application of wireless network, and several sensor nodes are berried in the granary to form the cubic monitor network; coordinating node is mounted in every granary, located in outer of granary; at least one relay network consisting of relay nodes is designed according to the granary, and the position of relay nodes are fixed; information sink node and terminal sever are configured separately, located in control room; the coordinating nodes gather the information collected by several sensor nodes, and send it to the terminal sever by the relay network and information node consisting of relay nodes, the software in terminal sever processes the information, and sends commands to coordinating node to realize the network management for granary. The invention makes the detection automation develop fatherly, and improves the management level of information, and it is significant for science and grain security.

The invention discloses a flat motor and a mobile terminal. The flat motor comprises a stator, a first rotor and a second rotor, wherein the first rotor and the second rotor are respectively arranged on two sides of the stator, a plurality of blades are arranged on one side of the second rotor away from the stator and arranged around a central shaft of the second rotor. The mobile terminal comprises a plurality of flat motors evenly arranged on a main board of the mobile terminal. The mobile terminal serves as the flat motor of a vibration element, the blades are added into the flat motor to enable the mobile terminal to have a fan function, accordingly initiative heat dissipation of the mobile terminal is achieved, and the heat dissipation efficiency is improved. In addition, only the rotors and the blades are required to be further added into the flat motor when the mobile terminal is designed, a placing position is flexible, and particularly the influence of structural stacking and device arrangement of a mobile phone to the mobile terminal is small.

The invention discloses a multi-node quantitative assessment system for symptoms of Parkinson's disease. The multi-node quantitative assessment system comprises a plurality of movement and myoelectricity detection modules, a voice recording module and terminal processing equipment, wherein each movement and myoelectricity detection module is provided with a first microprocessor, a movement sensor and myoelectricity sensor, a first WiFi communication module and a first power management module; the voice recording module is provided with a microphone, a signal conditioning circuit, an analog-digital converter, a second microprocessor and a second WiFi communication module which are electrically connected in sequence and connected to the output end of a second power management module; the terminal processing module is provided with a display screen, a loudspeaker and a third WiFi communication module. The invention further discloses a multi-node quantitative assessment method for symptoms of Parkinson's disease. By means of the multi-node quantitative assessment system and method for symptoms of parkinson's disease, the movement function of a patient can be evaluated objectively through movement and myoelectricity signals of different portions of the body of the patient, and a quantitative index is given to each movement function evaluation content.

The invention relates to a comprehensive inventory management method for production materials. The comprehensive inventory management method comprises the following steps of: uniformly coding vessels; performing changeable digitalized registration on cargo vessels; performing intelligent counting prompt; adjusting storage locations and the like. According to the comprehensive inventory management method, all the tools for placing objects or handling equipment in a factory are taken as the vessels; the vessels are uniformly coded according to a certain kind of coding rule; the cargo quantity in each vessel, the mutual nest relation among the vessels, and the placing places of the vessels are counted and updated in time by means of mobile or stationary terminals; the counting strength on different cargos is regulated according to counting historical records; and the placement layout of cargos and transport tools is regulated on the basis of the statistical analysis of the delivery frequencies and modes of different vessels and different objects, so that the aim of optimizing inventory management is fulfilled. According to the method, the phenomenon of management security holes is prevented, historical records are difficult to lose, and the phenomena of shutdown and sabotage caused by the lack of materials are prevented.

The invention discloses a flexible array-based brain-computer interface electrode cap, which comprises a flexible electrode cap body. The electrode cap body is internally provided with a plurality of input terminals, and the input terminals are provided with a flexible array electrode. The invention has the advantages that the flexible array-based brain-computer interface electrode cap can be worn comfortably, can be used rapidly and conveniently, and has a high signal-noise ratio, high universality and good stability.

The invention relates to the technical field of self-service vending, in particular to a method for generating a payable bill and a matching method for payable bills and paid bills. The method for generating a payable bill includes the following steps: acquiring weight bearing data of a bearing plate for carrying commodities; obtaining the type and quantity of commodities of which the state changes based on the weight bearing data and a pre-stored commodity list, wherein the commodity list records the type and quantity of commodities placed on the bearing plate and the weight value of each commodity in each type of commodities; and generating a payable bill based on the type and quantity of commodities and preset unit prices of commodities. The technical scheme has the following beneficialtechnical effects: an efficient anti-theft reverse investigation means is provided for businesses during self-service purchase by users; and self-service operation in many industries can be promoted,and the number of workers can be reduced. Low-cost and light equipment can be quickly deployed in a large scale.

The invention discloses a method for manufacturing a carbon fiber reinforced lead alloy plate grid and a winding lead-acid battery. The method comprises the following steps: (1) degumming carbon fiber sheets at a high temperature: arranging the carbon fiber sheets in an environment of 450-500 DEG C and roasting for 5-10 minutes to remove the epoxy resins, wherein the carbon fiber sheets are made from unidirectional long carbon fibers and epoxy resins; (2) soaking the carbon fibers: soaking the carbon fiber sheets in a liquid sodium-potassium alloy in an anhydrous and inert gas protection atmosphere and then taking out the carbon fiber sheets; (3) carrying out hot extrusion forming: quenching carbon fiber sheets and a lead or lead alloy liquid to below 200 DEG C, and extruding to manufacture a plate, wherein the lead or lead alloy liquid is at the temperature of 450-500 DEG C and the pressure of the lead or lead alloy liquid is 500-550Mpa; (4) rolling: rolling to form the plate; and (5) punching: punching to form holes. The prepared carbon fiber reinforced lead alloy plate grid is high in tensile strength, good in electroconductibility, light in weight and good in corrosion resistance, and can be coated with more active substances in unit area. The winding lead-acid battery prepared by the plate grid has the advantages of higher mass specific energy and volumetric specific energy.

The invention provides a bus duct system for supplying power. The bus duct system comprises a bus duct, a jack box and a power supply box. The power supply box is connected with one end of the bus duct, and supplies power to the bus duct. The jack box is located below the bus duct and is connected with the bus duct so as to output power. The bus duct comprises a bus duct body, an insulation support and a conductor, wherein the bus duct body is of a strip-shaped structure with three closed surfaces. The jack box comprises a conductive unit and a jack box unit. By means of the jack box, conductive claws are enabled to be in contact with the conductor based on simple operations, so that the current is switched on. According to the technical scheme of the invention, the bus duct system has the all-point electrification function and the plug-and-pull function. Meanwhile, the system is simple in structure, tight and reliable in connection of conductive claws and convenient to operate.

A freeze detection device that sends a wireless freeze-alert signal when a water freeze condition is detected. The device allows ready installation in areas where traditional freeze detection equipment would require significant effort and expense. The device provides freeze-detecting functionality with very small power consumption, allowing long lasting sensing capability and low maintenance.

The invention provides a concrete beforehand pore-forming static breaking technology. A plurality of containers with a certain sizes, shapes and amounts are embedded in a concrete member before the concrete is cast, a plurality of orifices are arranged above the containers, the inner diameters of the orifices are less than the inner diameters of the containers, and the orifices are extended to the edge of the concrete member. When the concrete member needs to be disassembled, the expanding agent is filled into the containers along with the orifices, the expanding agent is chemically reacted in the containers to generate the expansibility, the concrete member is expanded to be broken, and the whole process is free of noise, vibration and slungshots. Compared with the normal pore-forming type static breaking technology, the expansibility is larger, the expanding agent can be effectively avoided to be sprayed out of the orifices, and the construction is safe and environment-friendly; and the drilling working capacity is eliminated, so that the cost can be reduced, and the disassembly construction period can be shortened, therefore, the technology is suitable for the static breaking of engineering temporary facilities.

The invention discloses a thoracoabdominal cavity minimally invasive surgical robot system. The system includes a double-arm operating trolley, a main operation table and an instrument trolley; two brand-new slave arms are installed on the operating trolley through a stand column, and operating arms can move up and down along the stand column; two master manipulators and an endoscope display device are arranged on the doctor operation table; the operating trolley can be moved by key control or remote control, the operating trolley can realize forward and backward movement, turning and zero radius turning in place, or can be manually pushed and pulled to move, and after the position is determined, the operating trolley automatically completes parking lock; each surgical arm includes a pre-adjusting part, a compensation adjustment part, a centering motion part and a surgical instrument (or an endoscope); the pre-adjusting mechanism is compact and flexible, can conveniently and quickly pre-position a centering point of the surgical instrument; and the redundant compensation adjustment mechanism corrects and adjusts the distribution position of a controlled operation space during operation, so as to facilitate the operation of a chief surgeon to reduce fatigue and achieve the best operation effect. The system can have multiple combination configurations in the operating room.

The invention discloses a cigarette/filter bar sampling system, which comprises a sampling cantilever device, a perpendicular lifting device, a horizontal thrusting device and a control device. The sampling cantilever device is horizontally arranged and connected with the perpendicular lifting device through a second movable connection block, and the height of the sampling cantilever device can be adjusted by adjusting the second movable connection block. The perpendicular lifting device is arranged on one side of a comprehensive testing bench through connection parts, and the relative positions of the perpendicular lifting device and the comprehensive testing bench can be regulated by adjusting the connection parts. The horizontal thrusting device is horizontally installed on the top endof the perpendicular lifting device through a fifth movable connection block. The control device is used for controlling the sampling cantilever to drive samples to rotate through 180 degrees. The cigarette/filter bar sampling system can adapt to conveyor lines of different height and comprehensive testing benches with different feeding height. Different placing positions can be chose, thereby enabling the cigarette/filter bar sampling system to have good adaptability.

The invention relates to the field of automatic agricultural irrigation, in particular to a wireless automatic monitoring irrigation system based on cellular network communication. The system comprises a control center and a plurality of control unit nodes, wherein the control center and a plurality of control unit nodes are connected by a cellular wireless network; a plurality of control unit nodes form a mesh topology structure; an industrial computer for monitoring and controlling and a coordinator for data transmission are arranged in the control center; irrigation data are acquired by the control unit nodes through sensors, and are transmitted to the control center through the cellular wireless network; and the control nodes receive control data returned from the control center through the cellular wireless network as well, and controls open and close of an electromagnetic valve after control data processing. The system can provide an automation monitoring irrigation system applicable to farmland, greenhouse and other environments, so that a user can monitor environment parameters and plant physioecologic parameters of a monitored region in real time, thereby carrying out timed automatic irrigation or automatic irrigation according to actual water demand condition of the environment.

An opened book can be placed in an apparatus for detecting the content of a book (10) or of pages bound in a book-like manner, said apparatus having one cradle (2) with two support surfaces (3, 3') arranged at an obtuse angle to each other, wherein the book with the opened pages rests upward. The relative position of the support surfaces (3, 3') is adjustable, namely, in at least one direction which is parallel to the plane of the support surface and perpendicular to the bifurcation. In addition, the apparatus has a camera system with at least two camera units (5, 5') which are each positioned above the cradle for recording of one of the opened pages of a book held in the cradle, and a paging apparatus (20) is provided for paging through the pages of a book held in the cradle, wherein the cradle and/or the support surfaces can be moved in an essentially vertical position relative to the camera system.

An interference elimination method for an electronic compass, comprising the following steps: 1. Checking an interference current in the PCB wiring of a terminal in real time after calibrating a geomagnetic sensor; 2. if the interference current is detected, then utilizing the current value of the interference current to obtain a geomagnetic data compensation value; 3. utilizing the geomagnetic data compensation value to compensate the geomagnetic data outputted by the geomagnetic sensor so as to obtain the geomagnetic data with the interference current eliminated. Also disclosed is an interference elimination device of the electronic compass. The interference elimination method and device of the electronic compass avoid the interference of large-current PCB wiring with the geomagnetic sensor.

The present invention discloses an all-time marine sulfur dioxide gas discharge remote measurement apparatus including a thermal infrared camera, at least two band-pass filters, a thermal infrared area array detector, a processor and a display, the at least two band-pass filters are arranged at the rear part of the thermal infrared camera, the thermal infrared area array detector is arranged at the rear part of the at least two band-pass filters, the thermal infrared area array detector is connected with the processor, and the processor is connected with the display. The beneficial effects are that: (1) through use of passive thermal infrared differential imaging technology, a marine sulfur dioxide gas discharge smoke plume image can be accurately obtained, and 24-hour all-time work can be achieved; (2) marine sulfur dioxide gas discharge amount can be remotely measured, the possibility of excessive emissions can be determined, the basis is provided for law enforcement personnel, and the supervision efficiency is improved; and (3) the all-time marine sulfur dioxide gas discharge remote measurement apparatus is small in volume and easy to carry, and placement places can be flexibly arranged according to need.