36results about How to "Simple and easy to implement" patented technology

A method, a system and an apparatus for ACK/NACK resource reservation are provided. The method includes: a base station configures and notifies usable uplink control channel resources to a user terminal using transmit diversity for ACK/NACK transmission, said base station receives the ACK/NACK transmitted by the said user terminal on the configured channel resources. The reservation of channel resource that is used in ACK/NACK feedback is realized, and the method for resource reservation supports transmit diversity, and improves the reliability of uplink control channel transmission, and the method is simple and easy to implement.

The invention relates to a testing device for realizing Mueller matrix of an optical device based on a rotatable wave plate and a method. A testing system consists of a laser device, a polarization generator, a tested device, a polarization analyzer, a voltage controller and a computer. Light generated by the laser device enters the polarization generator, the polarization generator consists of a polarizer and the rotatable wave plate, the rotation angle of the wave plate is larger than 180 degrees, rotation of the wave plate is controlled by voltage, and the polarization generator generates different polarization state outputs under different control voltages. Light outputted by the polarization generator enters the tested device, light outputted by the tested device directly enters the polarization analyzer, and the polarization analyzer detects corresponding output polarization states of the polarization generator and corresponding Stokes parameters of output polarization states of the tested device when in different control voltages. Afterwards, a linear system equation among detected input and output polarization state parameters and Mueller matrix parameters of the tested device is built, the computer solves the system equation, and then 16 parameters of the Mueller matrix can be solved.

The invention relates to a damping controller for restricting secondary synchronous oscillations based on a direct current power transmission control protecting system and a control method thereof. The controller comprises a low-pass filtering module (1) for filtering high frequency components in signals, a phase locking ring module (2) for acquiring stable signals, a band-pass filtering module (3) for extracting relevant components of secondary synchronous oscillation frequency to processed signals, a phase-shifting module (4) for carrying out phase-shifting processing to the relevant components of secondary synchronous frequency, wherein the input end of the low-pass filtering module (1) is taken as signal input quantity of the controller for collecting alternating current bus voltage of a converter station; the input end of the phase locking ring module (2) is connected with the output end of the low-pass filtering module (1); the output end of the phase locking ring module (2) is connected with the input end of the band-pass filtering module (3); and the input end of the phase-shifting module (4) is connected with the output end of the band-pass filtering module (3). The damping controller can effectively restrict the problem of secondary synchronous oscillations of a direct current system, and has the advantage of utilizing the existing high-pressure direct current control protecting system to realize the restriction to a plurality of synchronous oscillation modes.

Embodiments of the present invention provide devices (tags with sensors), systems, and methods to determine states (such as, but not limited to, complex impedance) of materials-of-interest, such as tissue-of-interest, implants, and construction members, to name a few, in a non-invasive and contactless way; and using comparatively safe and/or low energy electromagnetic radiation, such as radio waves. Negligible-sized wireless-tags with sensors are implanted in such materials-of-interest. Using wireless communication and imaging technology, the states of the materials-of-interest may be monitored; which may allow non-invasive and contactless detection of problems such as cracking, bending, excessive pressure, improper temperature, and/or the like. Additionally, initially unknown locations of the implanted negligible-sized wireless-tags with sensors may be readily determined upon a given scanning (reading) session; and thus mapped to provide an effective image of the material-of-interest.

The invention discloses a space structure detection method and device for an unmanned aerial vehicle. The detection method comprises the steps of starting assembled distance sensors in multiple directions; receiving distance sensing data sent by the distance sensors for calculating the distance between the unmanned aerial vehicle and peripheral surrounding obstacles; sending the distance sensing data to a control side so as to integrating the distance sensing data into a three-dimensional space structure. The invention further provides multifunctional control equipment for implementing the detection method. The invention provides a method for detecting the space structure when the unmanned aerial vehicle is in the flying state. The distance between the unmanned aerial vehicle and the peripheral obstacles can be detected out through the multiple distance sensors assembled on the unmanned aerial vehicle, and then the space structure is integrated according to the distance data. The method is applicable to detection of a toxic gas region and a dangerous region where workers cannot enter conveniently, so that personal safety can be ensured.

The invention discloses a detecting device for pile foundation static load. The detecting device comprises a lifting jack, force collecting I-shaped steel, foot-pad clump weights, force bearing I-shaped steel and press pile clump weights; the lifting jack is placed at the top of a to-be-detected pile foundation, the lifting jack is coincided with the central axis of the to-be-detected pile foundation, the foot-pad clump weights are placed on two sides of the to-be-detected pile foundation, the force collecting I-shaped steel is arranged above the lifting jack, the center of gravity of the force collecting I-shaped steel is located on the central axis of the lifting jack, the long edges of the force collecting I-shaped steel are parallel to the long edges of the foot-pad clump weights, the multiple force bearing I-shaped steel is arranged on the foot-pad clump weights, the press pile clump weights are arranged on the force collecting I-shaped steel, the number of the force collecting I-shaped steel is 1.2 times as much as the pile foundation design bearing capacity after the pile foundation design bearing capacity is divided by single weight of the press pile clump weights, and the press pile clump weights are stacked in a pyramid shape. The detecting device and a detecting method for the pile foundation static load have the advantages of being easy to carry, uneasy to deviate the center of gravity, safe and reliable and good in detecting effect.

The invention discloses a multi-dynamic-view-angle cooperative aerial target recognition method and system, and the method comprises the following steps: carrying out the full-autonomous cooperative positioning in a Co-SLAM mode through multiple dynamic view angles, and keeping the target formation of an unmanned plane; after the target appears, detecting and identifying the target through each dynamic visual angle of the multiple dynamic visual angles, and cooperatively calculating the three-dimensional space position of the target; and calculating a three-dimensional motion track of the target according to the three-dimensional space position, and adjusting a target transformation formation according to the three-dimensional motion track. According to the method, the position and the motion trail of the aerial target in the three-dimensional space can be identified in real time, and a technical basis is provided for cooperatively tracking and surrounding the aerial target by utilizing multiple unmanned aerial vehicles.

A tap-scan bridge damage detection system comprises: a mobile cart (1) capable of moving on a to-be-detected bridge; a tap subsystem (2) mounted on the mobile cart (1) and used for applying a tap load to the to-be-detected bridge; a signal acquisition subsystem (3) mounted on the mobile cart and used for acquiring a response signal transferred from the to-be-detected bridge to the mobile cart; and a signal processing apparatus (4) connected to the signal acquisition subsystem (3) and used for receiving and processing a signal acquired by the signal acquisition subsystem (3), and outputting the bridge damage information processed result. The tap-scan bridge damage detection system can detect bridge damage in a simple, convenient, efficient and accurate manner.

The invention discloses a super-hydrophobic coating and a preparation method thereof. The super-hydrophobic coating comprises the following components in parts by mass: 2.5-9 parts of fluororesin, 2-7.5 parts of polymethyl methacrylate, 20-30 parts of inorganic microparticles and 60-70 parts of a diluent. The preparation method comprises the following steps of mixing the fluororesin, polymethyl methacrylate and the diluent; sufficiently stirring under the condition of 60-80-DEG C water bath; adding the inorganic microparticles; and uniformly stirring to obtain the super-hydrophobic coating. The super-hydrophobic coating disclosed by the invention has favorable super-hydrophobicity and wear resistance; the surface of the material or the used particles are not needed to be modified; and the preparation method is simple and easy to implement.

The invention relates to an organic thin-film transistor and a manufacturing method thereof, aiming at solving the problem that the interconnection between an upper electrode layer and a lower electrode layer is harder to realize by a through hole formed in a self-patterned insulating layer in the existing thin-film transistor. The organic thin-film transistor comprises an insulating substrate, a source and drain electrode layer, an organic semiconductor layer, a self-patterned organic gate insulating layer, a gate electrode layer, an organic flattening layer and a pixel electrode. The method comprises the step of forming a multi-layer structure which sequentially comprises the insulating substrate, the source and drain electrode layer, the organic semiconductor layer, the self-patterned organic gate insulating layer, the gate electrode layer and the organic flattening layer. The organic thin-film transistor and the manufacturing method thereof inherit the advantage of the simple process of the self-patterned insulating layer, and solve the problem of disconnection caused in the interconnection process of the upper electrode layer and the lower electrode layer; the organic thin-film transistor can be prepared with low cost.

The invention discloses a dual-camera measuring method for accurate calibration of distance between optical identification points. The method, by calibrating the relative position of the two cameras by using a single-shaft motor displacement platform, increases the calibration precision of a binocular stereo vision system and the measuring precision of 3 dimensional coordinates of the optical identification points, and achieves the purpose of accurate calibration of the distance between optical identification points. The method comprises the following steps: using a calibration board to calibration the binocular stereo vision system to obtain the internal parameter matrixes and deformation parameter matrixes of the two cameras and the rotation matrix and the translation vector of the second camera with respect to the first camera; using the single-shaft motor displacement platform to translate a single optical identification point for a known distance, using the known distance to complete the calibration of the binocular stereo vision system; using the calibrated binocular stereo vision system, based on the basic binocular stereo vision theory, to conduct accurate measurement on the distance between two identification points on a reference scale in a direct way.

A watermark generator for providing a watermark signal in dependence on binary message data includes an information processor configured to provide, in dependence on a single message bit of the binary message data, a 2-dimensional spread information representing the message bit in the form of a set of time-frequency-domain values. The watermark generator also includes a watermark signal provider configured to provide the watermark signal on the basis of the 2-dimensional spread information.

A watermark detector, methods and computer programs are also described.

The invention discloses a distribution type collecting method and system of collection tasks. The distribution type collecting method of collection tasks comprises the steps that a collection server sends the received collection tasks to an inner collection distribution controller; distribution strategies controlling distribution of the collection tasks are set inside the collection distribution controller; the collection distribution controller matches the received collection tasks with the multiple distribution strategies set inside the collection distribution controller, and if matching succeeds, the collection tasks are distributed to corresponding collection engines according to the information of the matched distribution strategy; the collection engines carry out network data collection in a corresponding network environment according to the collection tasks. The distribution type collecting method of collection tasks is simple, convenient and easy to implement, can meet various requirements of different users dynamically, is high in collection efficiency, avoids loss of collected data, guarantees completeness of the collected data, avoids setting work of complex safety equipment, reduces the complexity of system use, and brings convenience to distribution of the collection tasks.

The invention discloses an image edge extracting method based on color block point features, wherein the method includes steps of pretreating a color image, transforming and storing to be a grey image; setting a pixel threshold value; traversing the grey image by a gliding window, judging the conditions of the pixel point in the gliding window, finding out and marking all internal color block points; traversing the pixel points of the grey image by the gliding window one by one, and judging if the pixel point within the neighbor domain scale where the internal color block point locates is marked, and marking the unmarked pixel points as a color block side point; traversing the pixel point one by one again by the gliding window, and judging if the pixel point of every color block side point in the neighbor domain scale is marked, and marking the unmarked pixel point as the boundary side point; marking the rest unmarked pixel point as the internal boundary point; connecting all boundary side points in the grey picture to be the color block and extracting the color block as the image edge. The edge extracted by the method is a complete continuous edge, and the threshold value is flexible to control, simple and high-efficient.

The invention relates to a pneumatic slip shaft-based winding tension and rotation speed control method. The conventional control method lacks dynamic compensation control of an acceleration and deceleration dynamic process, compensation control of winding inertia and coordinate control of the rotation speed of a slip shaft, and therefore, causes serious heating and short service life of the slip shaft. The method comprises: firstly, computing a winding radius and the rotation speed n of the pneumatic slip shaft according to the width and winding length of a strip; secondly, computing a dynamic acceleration of the transport of the strip and the input air pressure of the pneumatic slip shaft; and finally, inputting the obtained input air pressure signal to the pneumatic slip shaft and the rotation speed signal of the pneumatic slip shaft into a slip shaft transmission motor driver to realize the coordinate control of the winding tension and rotation speed. When the method of the invention is used, the smooth control of the static and dynamic winding tension and the compensation control of the winding inertia can be realized, the slip power consumption of the pneumatic slip shaft is reduced, and thus, the life of the pneumatic slip shaft is improved greatly.

Embodiments of the present invention provide devices (tags), systems, and methods to determine structural integrity and other states of materials-of-interest, such as dental fillings, implants, and root canal posts, to name a few, in a non-invasive and contactless way; and using comparatively safe and/or low energy electromagnetic radiation, such as radio waves. Negligible-sized backscatter-tags with sensors are implanted in such materials-of-interest. Using backscatter imaging technology, the structural integrity and other states of the materials-of-interest may be monitored; which may allow non-invasive and contactless detection of problems such as cracking, bending, excessive pressure, improper temperature, and/or the like. Additionally, initially unknown locations of the implanted negligible-sized backscatter-tags with sensors may be readily determined upon a given scanning (reading) session; and thus mapped to provide an effective image of the material-of-interest.

Disclosed is a biodegradable packaging including: —a biodegradable substrate including a bottom from the edge of which a wall rises so as to define an inner face capable of containing an item, such as a food item or a plant; —a biodegradable film. The biodegradable substrate includes one or more openings arranged on the bottom and/or the wall, the biodegradable film being positioned on the inner face of the biodegradable medium so as to seal at least the openings. The biodegradable film is positioned on the biodegradable substrate by the in-mould labelling technique.

The invention discloses a liquid crystal panel, a liquid crystal panel production method and a liquid crystal display. The liquid crystal panel comprises a color film substrate and an array substrate opposing each other, liquid crystal layers are filled between the color film substrate and the array substrate, and the surface of at least one of the color film substrate and the array substrate is provided with shading stripes. The production method includes: producing the array substrate and the color film substrate respectively; and forming the shading stripes on the surface of at least one of the color film substrate and the array substrate. Compared with the prior art, the liquid crystal panel has the advantages that product precision is convenient to control, the liquid crystal panel is simple and easy in implementation, and reliability and product yield are improved greatly.

A pretreatment device for a printing and dyeing production line is used for performing desizing, refining and bleaching and comprises a pool, fabric stretching rollers and a power device, wherein the pool is made of an insulating material, a NaCl solution is injected into the pool, two fabric stretching rollers are arranged in the pool, fabric to be desized, refined and bleached is stretched between the two fabric stretching rollers, the fabric stretching rollers are immersed in the NaCl solution, surfaces of the fabric stretching rollers are made of an electrochemically inert electric conductive material, and the two fabric stretching rollers are connected with a cathode and an anode of a power supply respectively; the power device is in transmission connection with the fabric stretching rollers and used for driving the fabric stretching rollers to rotate. The NaCl solution is electrolyzed through the anode and the cathode, NaOH and oxide are generated, and accordingly, charging and production processes are simplified. Meanwhile, biochemical indexes of sewage produced by the production line in the overall operation process are remarkably lower than those of sewage produced by an existing production line, so that the sewage treatment cost is greatly reduced.

The invention discloses a cascade reservoir group short-term optimization scheduling method and system, and belongs to the field of hydro-thermal power station collaborative optimization scheduling, and the method comprises the steps: obtaining the fitness of each individual in an initial population, and updating the positions of an optimal fitness individual, a suboptimal fitness individual and athird optimal fitness individual in the population; updating the positions of all individuals in the population, and generating a temporary population; screening populations by adopting a mutation strategy based on the populations and temporary populations obtained after updating all individual positions of the populations; and an adaptive boundary strategy is adopted to effectively prevent the population from falling into local optimum; and updating all individual positions in the population through iteration, and outputting the optimal fitness individual position as the optimal scheduling process of the cascade hydropower system after a stop condition is reached. The invention has the advantages of being high in convergence speed, high in solving precision, high in optimizing capacity,capable of effectively avoiding falling into a local optimal solution and the like, can well coordinate cooperative scheduling of the water-heat power stations between the power grids, improves economic benefits and has high practical value.

The invention relates to a liquid level detection system, which comprises a first voltage division circuit, a second voltage division circuit and a calculation circuit. A first reference metal part, afirst metal part, a second reference metal part, and a second metal part in contact with the liquid level are fixedly arranged in a liquid container. The second reference metal part is fixedly arranged on the bottom wall of the liquid container and is opposite to the second metal part. The face-to-face area between the first reference metal part and the first metal part is equal to the face-to-face area between the second reference metal part and the second metal part. A reference resistor is formed between the first reference metal part and the first metal part, and there is a predetermineddistance between the first reference metal part and the first metal part. The first voltage division circuit outputs a first partial voltage of the reference resistor. A liquid level resistor is formed between the second reference metal part and the second metal part, and the second voltage division circuit outputs a second partial voltage of the liquid level resistor. The calculation circuit calculates the liquid level depth according to the first partial voltage, the second partial voltage and the predetermined distance. Continuous liquid level detection with low cost and high precision is realized by a simple circuit, and the detection reliability is high.

The embodiment of the invention provides an electron dissipation measuring device in nano modified transformer oil. The electron dissipation measuring device in nano modified transformer oil comprises a sample system, an electron injection system, a measurement system and a polarization system. The sample system includes a back electrode and an oil containing insulating ring, wherein the sample is located at the upper portion of the back electrode and is surrounded and blocked by the oil containing insulating ring so as not to overflow, and the back electrode is grounded; the electron injection system includes a high-voltage DC source and a needle point, the needle point is connected with the high-voltage DC source, and the tip of the needle point is positioned at the upper portion the sample; the measurement system includes a potentiometer and a collection module, wherein the potentiometer is connected with the collection module, and the collection module comprises an oscilloscope and a processor; and the polarization system comprises a polarization electrode and a high-voltage DC source, wherein the polarization electrode are two flat electrodes which are respectively and symmetrically arranged on two sides of the sample, the flat electrode on one side is connected with a direct current voltage source, the flat electrode on the other side is grounded, and a horizontal electric field is formed in the sample. The electron dissipation measuring device provided by the invention is simple and easy to implement, and can verify whether the nano particle polarization has a capturing effect on the electron dissipation in the nano modified transformer oil or not.

The invention discloses a quantitative detection method, a portable terminal, and a device having a storage function. The method comprises the following steps: taking photos of an object to be detected and a blank reference object, and obtaining the photos including the object to be detected and the blank reference object; obtaining and analyzing RGB data corresponding the object to be detected and blank reference object on the photos respectively; according to a magnitude of the RGB data of the object to be detected, the magnitude of the RGB data of the blank reference object, and a preset determination strategy, and determining whether a specific detection result of the content of a substance to be detected corresponding to the object to be detected is positive or negative. Through the above mode, the method can realize simple, rapid and objective quantitative detection of substances.

The invention provides a switch with a shell anti-restart mechanism and a using method thereof. The invention describes the switch with the shell anti-restart mechanism which is characterized in thatat least one shell anti-restart mechanism is arranged in a switch shell, a rotating piece is arranged on an action module, and the rotating piece is matched with the shell anti-restart mechanism to brake the action module. The invention further discloses a using method of the switch with the shell anti-restart mechanism. The rotation angle of the switch with the shell anti-restart mechanism is selected according to the gears, the head of the switch starts to rotate from the initial position to the position corresponding to the gears and stops rotating, and pendulum type movement of the actionmodule is stopped through the shell anti-restart mechanism while gear connection of the switch is completed. Through the innovative design of the shell anti-restart mechanism and the rotating piece, the situation that the action module rotates in a new pendulum mode due to braking and then drives the movable contact piece below the action module to move can be prevented, the connection operation of the switch is controlled in a one-action using mode, and the switch is convenient to use.

The invention discloses an electronic screen copying and handwriting exercising device, which belongs to the field of electronic screen copying and handwriting exercising utensils, so as solve relatedproblems that a touch electronic screen device such as a mobile phone or a tablet computer is used as a copybook source, the screen surface is used as a supply surface of the copybook, and real paper-pen copying and handwriting training is carried out. The device is characterized by at least comprising a hand supporting plate for supporting a hand holding the pen; with the help of a supporting body, through below supporting or side supporting or upper hanging, a hanging part is formed; the space below the hanging part is used for accommodating a flatly-placed electronic screen device; the supporting body is an accessory device beyond the hand supporting plate or a component of the hand supporting plate. The hand holding the pen can be constantly and firmly supported, interference to the touch screen can be reliably blocked, the copybook displayed on the screen can be ensured to have a good penetration and display effect on the writing medium, and the technical scheme is simple and easy to do, and the price is low.

The invention discloses a CTT-based educational measurement equivalence method and device, a server and a storage medium, and the method comprises the steps: collecting original test data which comprises test paper questions and test result data of each test, and the test result data comprises score data of each question; summing the calibrated test question difficulty estimation average value, the original test data and the product of the test question score weight to obtain a test paper difficulty parameter; calculating to obtain a sample standard score according to the test paper difficultyparameter, the average score and the standard deviation of each test; and according to a set value range and a conversion formula, performing equivalent processing on all sample scores according to the sample standard score. The invention is efficient, low in cost and convenient to implement, and can be easily understood, mastered and used by various front-line evaluation personnel and testees.

The invention discloses a puncture apparatus for cathetering a disposable percutaneous peritoneal dialysis catheter. The puncture apparatus comprises a core rod and a casing pipe sleeving the core rod, wherein the outer part of the casing pipe is sleeved with a sleeve hoop; the outer diameter of the core rod is of a two-sectional stepped structure, a small end of the two-sectional stepped structure of the core rod is provided with a sharp end for puncturing peritoneum, and an annular bulge is formed on the tail part of the large end of the two-sectional stepped structure of the core rod, the casing pipe is a joint body of a first half casing pipe and a second half casing pipe which can be separated outwardly in the radial direction; the tail part of the sleeve hoop is also provided with anannular bulge; the core rod, the casing pipe and the sleeve hoop are respectively a high-density polyethylene molded part; and the core rod is of a cylindrical stepped structure.