50results about How to "Obvious location" patented technology

The invention belongs to the field of oil and gas field exploration, discloses novel technology for volume fracturing of a compact oil reservoir, and particularly relates to a sectioned multi-cluster synchronous volume fracturing technology for double horizontal wells. The technology is characterized by including the steps of synchronous fracturing selection, synchronous fracturing well selection, multi-section and multi-cluster perforation position determination, synchronous fracturing construction and synchronous fracturing effect evaluation. In the technology, cracks are impelled to turn by means of interference among the cracks, thereby realizing complicated netted cracks and effectively modifying the compact oil reservoir.

The invention provides a genetic algorithm-based MIMO-SAR planar array antenna array element position optimization method. According to the method, an array directional diagram optimization model is established on the basis of an antenna phase center approximation principle; array element positions are selected on grid points in the encoding process of a genetic algorithm by taking the minimum peak side lobe ratio and the minimum main lobe width as optimization objectives; two transmission array elements and two reception array elements are laid at four end points of a laying area to ensure the maximum length of the array; the early-maturing of the genetic algorithm is inhibited to obtain the optimal array element positions; by adopting the planar array form constrained by the array element minimum distance, the number of the required array elements is greatly decreased, so that the cost and calculated amount of an antenna system are effectively reduced, the method is more suitable for the engineering design, and convenience is provided for the MIMO-SAR three-dimensional imaging and objective detection and recognition.

The invention discloses a diffusate detection method of a retina fundus image. The method includes a fundus image shot by use of a color digital non-mydriatic fundus camera and comprises the following steps: 1, adjusting the size of an original image; selecting an RGB channel of the adjusted image; 3, positioning an optic disc of the adjusted image; 4, positioning a view field of the adjusted image; 5, performing dual-scale positioning on a diffusate suspicious area; 6, performing feature extraction on the diffusate suspicious area; and 7, performing classification detection on the diffusate suspicious area, and generating the fundus image marking a diffusate. According to the method provided by the invention, fundus images obtained under different acquisition conditions can be processed, the detection of the diffusate is robust and effective, the diffusate positions of the fundus images after processing are visual and obvious, and further diagnosis of an ophthalmological doctor is further facilitated.

The invention relates to a photographing method of a smart terminal, a photographing device and a smart phone. The method comprises the steps of taking a photo with a human face through a front camera, and acquiring the human face position in the photo; performing human face position identification on a real-time image acquired by a post camera through a post camera photographing mode, identifying matching of the human face position in the current image and the human face position in the photo taken by the front camera, and giving out a photographing command; and acquiring the photographing command, and taking a photo or video. According to the method, the front camera takes the photo and identifies the human face position so as to prompt the user, so that the post camera can rapidly accurately take the photo of the user or take the video, and the human face is in an ideal position in the photo or video taken by the post camera.

The invention relates to a method and a system for detecting small and short obstacles and ramps based on RGB-D cameras and an attitude angle sensor. According to the system, an infrared projector is used for projecting invisible near-infrared static speckles; the two infrared cameras are used for collecting images; the attitude angle sensor is used for acquiring the attitude angle information of the cameras; the depth information and the attitude angle information in the images are processed, so that the azimuths, heights and distances of the ramps and the ground obstacles in the front three-dimensional scene are detected; finally, the detection results are converted into semantic sound and transmitted to a blind person through bone conduction headphones for realizing assistance.

The invention provides a fabrication template system for custom individual artificial total hip replacement operation acetabulum. The system comprises an acetabulum positioning guide plate, a depth control drill and a colored depth indication rod. The acetabulum positioning guide plate comprises a fossa ovalis positioning plate, an acetabulum bottom positioning plate and a depth guide cylinder. The fossa ovalis positioning plate is attached to the fossa ovalis according to the fossa ovalis dissection shape. The acetabulum bottom positioning plate is arranged at the outer edge of the fossa ovalis positioning plate and is attached to the acetabulum cartilage face according to the acetabulum dissection shape. The depth guide cylinder is arranged on the acetabulum bottom positioning plate and performs guide and depth limitation on the depth control drill. The depth control drill performs drill on the acetabulum through the depth guide cylinder, a depth limit ring protruding from the drill is arranged on the body portion of the depth control drill, and the depth limit ring is limited at the end of the depth guide cylinder through the depth guide cylinder. The length of the colored depth indication rod is identical to the drill hole depth, and the colored depth indication rod is inserted into the hole to indicate the depth and direction. By means of the template system, the ideal acetabulum prosthesis arranging position can be obtained, and accordingly, the acetabulum prosthesis can be arranged accurately, and the operation effect is improved.

The invention provides a power cable joint, characterized by comprising: a high voltage shielded tube, a joint body wrapped on the outer side of the high voltage shielded tube, and an optical fiber sensor containing only the optical fiber itself and arranged inside the joint body in a way of penetrating the entire joint body. The optical fiber sensor is some distance away from the edges of the joint body. The optical fiber sensor is connected with a temperature detection system and a power discharge detection system. According to the invention, the structure of the joint detection system is simplified and no area is free of detection. At the same time, the interference of the power discharging phenomenon at the intersecting part to the electric field strength detection can be prevented so as to accurately detect the power discharging condition at the joint body position.

The invention discloses a method for automatically riveting multi-layer sheets in screw joint and screw nuts applied. In the method, internal-thread blind-hole rivet nuts are used to automatically rivet the multi-layer sheets in screw joint; the method includes the following steps: inserting the internal-thread blind-hole rivet nuts into holes of to-be-riveted workpieces when operating; connecting the internal-thread blind-hole rivet nuts with internal threads arranged at the bottoms of the internal-thread blind-hole rivet nuts through bolts; riveting multi-layer sheets together by compressionally deforming the thin-wall portions of the internal-thread blind-hole rivet nuts to be distended outwards when the bolts are tightened and the internal-thread blind-hole rivet nuts are contracted axially inwards; and meanwhile, topping sheets are in screw joint with multi-layer sheets through the bolts. The method for automatically riveting multi-layer sheets in screw joint requires no extra installing tools when used, so that the technical problem that a riveter is difficult to be used for riveting in a narrow area is solved, riveting quality is well guaranteed, and reliability and tightness in riveting are improved. The method for automatically riveting multi-layer sheets in screw joint is suitable for aviation and aerospace, high speed trains and some high-demanding important situations with toxic-resistant or corrosive air or liquid.

A three-dimensional mouse adopts computer software programming based on a free three-dimensional display so that the conventional mouse has the three-dimensional function. Firstly a plurality of analog windows which are corresponding with multiple disparity maps adopted by the free three-dimensional display one by one through computer programming, and each disparity map is displayed in the analogwindow with a full-screen mode. Afterwards a conventional mouse is generated in each analog window, then the mouse is moved in the first analog window for aligning to the object to be displayed, and the mice in the rest analog windows are aligned to the object according to the disparity between the points with same name. Finally, the analog windows with disparity are recorded and a new disparity map which contains the mouse is formed; and after the disparity maps are combined and displayed on the free three-dimensional display, the three-dimensional mouse can be realized. According to the invention, a problem that the traditional mouse can only move in a same plane is overcome through generating and recording the disparity information of the mouse so that the three-dimensional mouse can bealigned to a preset spatial position on the free three-dimensional display.

The invention discloses a children's clothing hanger capable of being adjusted by lifting conveniently. The hanger comprises a base, wherein the upper surface of the base is fixedly connected with a first supporting column arranged vertically, the first supporting column is a hollow structure, a second supporting column is inserted in the first supporting column, the second supporting column penetrates through the upper end sidewall of the first supporting column, the inner walls of both sides of the first supporting column are both provided with sliding grooves, the second supporting column is slidably connected with the sliding grooves through sliding blocks, one end, away from the first supporting column, of the second supporting column is transversely fixedly connected with a bracket,the side wall of the lower side of the bracket is fixedly connected with two hanger bodies, the two hanger bodies are respectively located at two sides of the second supporting column, the inner wallof one side of the first supporting column is rotationally connected with a worm arranged transversely through a first rotating part, and one end, away from the first rotating part, of the worm penetrates through the side wall of the first supporting column. The children's clothing hanger capable of being adjusted by lifting conveniently has the advantages that the hanger bodies can be lifted, notonly can a worker take off clothes conveniently, but also the hanger can hang children's clothes with different sizes.

The invention relates to a sleep quality data acquisition device and monitoring system based on a surface acoustic wave sensor. The device comprises a tension transmission column, a patch type surface acoustic wave sensor, and a transmission antenna module. The tension transmission column is connected with skin of a user, and is used for transmitting heart beat pressure of the user; the patch type surface acoustic wave sensor is connected with the tension transmission column, and is used for converting the heart beat pressure of the user to an electrical signal, at the same time achieves the exchange of the electrical signal and a surface acoustic wave signal; the transmission antenna module is connected with the patch type surface acoustic wave sensor, and is used for receiving an external excitation electrical signal and transmitting the external excitation electrical signal to the patch type surface acoustic wave sensor, at the same time wirelessly transmits the electrical signal transmitted by the patch type surface acoustic wave sensor; the system comprises the sleep quality data acquisition device and a control terminal which has two-way transmission with the sleep quality data acquisition device; the control terminal also comprises a signal interaction module and a sleep quality analysis module. Compared with the prior art, the sleep quality data acquisition device and the monitoring system have the advantages of high safety coefficient, nonbreakable monitor, strong anti-interference ability, high monitor sensitivity, stable performance and the like.

The invention discloses a cataract surgical navigation system. The cataract surgical navigation system is characterized by comprising the following steps of S1, preoperative measurement: performing data measurement with a corneal topography instrument; S2, formulating an optimized surgical scheme; S3, comparing eyeball information during operation; S4, locating an eyeball through iris or scleroticblood vessels during the operation; S5, importing the data into an operating room microscope; S6, finishing each step of the operation according to image data by a surgeon. By adopting the cataract surgical navigation system, an eye image of a patient is collected before the operation, data such as a position suitable for implanting an artificial lens, an incision position and the axial positionof an implanted astigmatism-correcting artificial lens of the patient can be calculated, and are then imported into the operation room microscope, so that the surgeon can finish each step of the operation according to the image data, thereby achieving an optimized postoperative visual effect.

The invention discloses an alarming device used for robbing alarming. A machine body is connected to a connection rod through a rotation disc. The connection rod is installed in a vehicle. A first motor is arranged in the machine body and drives the rotation disc to rotate. A second camera is arranged on the outer wall of the machine body and is arranged away from one face where the first camera is installed. A control device comprises a control module used for starting the second camera when a button is triggered and controlling a second motor to open a sliding cover. The control module is also used for controlling the first motor to drive the rotation disc to rotate when the button is triggered, identifying faces in image information acquired by the second camera and storing the identified face-containing image information to a storage module. According to the invention, by setting above devices, shooting of criminals is achieved; and meanwhile, through the hidden shooting position, it is difficult for a criminal to be aware of and damage the alarming device, so related evidences of the criminal can be timely known.

The invention discloses an irregular pipeline defect inversion method based on an improved particle swarm optimization algorithm. The invention belongs to the technical field of pipeline monitoring. The irregular pipeline defect inversion method adopts an improved particle swarm algorithm, introduces the concept of personalized inertia weight, respectively compares the fitness of each particle with the average fitness of the population to judge the advantages and disadvantages of the current position of each particle, on the basis of the uniform inertia weight based on the BPSO, reduces the inertia weight of the particle with the optimal position, and increases the inertia weight of the particle with the poor position, so that the inertia weight of each particle is more matched with the current position of the particle; when the speed of the particles is updated, optimal experience positions pbestc of other particles in the population are introduced for learning, and a learning factorc3 is adjusted to enable the corresponding pbestc to be linearly decreased progressively along with the number of iteration steps; and by utilizing the thought of a genetic algorithm, a particle withan optimal position is added in a manner of combining inheritance and variation to jump out of a local minimum value and accelerate an optimization process.

A process for coating a lithium ion battery with slurry includes preparation of aqueous slurry, in which pure water is used as a solvent of the aqueous slurry. During the preparation of aqueous slurry, addition of a binder is later than addition of a thickening agent. The process includes the steps of: (A) before addition of the thickening agent, adding polyether modified silicon oil, which accounts for 0.01-3% of total mass of the pure water; (B) after the addition of the binder, adding polyether trisiloxane, which accounts for 0.01-3% of total mass of the pure water; (C) stirring the aqueous slurry prepared in the steps (A) and (B) for 20-30 min, or stirring the slurry at the same time of doing the steps (A) and (B) respectively for 20-30 min; (D) regulating viscosity of the slurry to 2500-4000 mPa*s; and (E) filtering the slurry and coating a lithium ion battery with the slurry. In the method, surface tension of the aqueous slurry is controlled so as to reduce phenomena of pore and edge shrinkage, thus improving quality and performance of the battery and improving appearance of same.

The invention relates to a vehicle-mounted light-emitting diode (LED) caution lamp. The technical problem to be solved is that caution characters and languages such as 'keep distance', 'slow down' and the like which are displayed in a Chinese and English mode of LEDs and are used for informing vehicles in the rear are provided for automobile drivers to reduce traffic accidents effectively. The vehicle-mounted LED caution lamp comprises a power supply module, input equipment, an encoder, a transmitting antenna, a demoder, a central processing unit, a receiving antenna, a display signal processor and an LED display screen, and is characterized in that: a transmitter circuit and a receiver circuit are arranged in a packager and are powered by the same power supply module. According to the vehicle-mounted LED caution lamp, the transmitter circuit and the receiver circuit can receive signals sent by the vehicle and also can receive signals sent by foreign vehicles and mobile signals, so that the signals are displayed on the LED display screen in Chinese and English modes. The vehicle-mounted LED caution lamp has the advantages that safety triangular supports on automobiles can be replaced, and the vehicle-mounted LED caution lamp is clear in position and high in luminance, can be seen by people in the vehicles on the rear and can avoid the traffic accidents such as tailgating and the like.

A safety handrail with unchoking and floor positioning functions is provided. The safety handrail comprises handrail structures I and handrail structures II, the handrail structures I and the handrail structures II are arranged on the walls of the outer sides and the inner sides of stairways in all floors correspondingly, and moreover the handrail structures II in all floors are mutually connected; and an alarming switch connected with a control unit in a monitor room is arranged on each handrail structure II, through turning-on / turning-off of the alarming switches, the control unit controls a unchoking reminding element, and then noticing and unchoking of emergencies at the stairways are achieved. According to the safety handrail with the unchoking and floor positioning functions, the handrail structures I and the handrail structures II are arranged on the inner and the outer sides of the stairways, the safety of pedestrians on the inner and outer sides of the stairways is improved, meanwhile, the alarming switches connected with the control unit are arranged inside the handrail structures II, rapid transmitting of massages and noticing and unchoking of emergencies at the stairways are achieved, and deteriorating of accidents is avoided effectively; and the structure is simple, the operation is convenient, and the personal safety of people is guaranteed.

The invention discloses a minimally invasive surgery guider for wrist navicular fractures. A horizontal adjusting plate is arranged at the upper end of a support. Two ends of the rear side of the horizontal adjusting plate are fixedly connected with the upper end of the support through fastening bolts. Two front ends of the horizontal adjusting plate are connected with the upper end of the supportmovably through vertical adjusting bolts. Two adjusting grooves are formed in the front side and the rear side of the horizontal adjusting plate symmetrically. Horizontal angle adjusting bolts are arranged in the adjusting grooves, and sleeve fixed angle rods. A support rod is arranged on one side of each fixed angle rod. A slider is arranged in the middle of each support rod. The minimally invasive surgery guider has the advantages of simple structure, reasonable design, positioning accuracy, good position of implants, avoidance of repeated fluoroscopy, effectively-reduced surgery time, andimproved working efficiency.

The invention discloses a lithium-ion battery for a forced internal short-circuit test. The lithium-ion battery comprises a lithium-ion battery core, a short-circuit metal part, a positive pole tab, a negative pole tab and a sealing packaging film. The lithium-ion battery core comprises a positive pole, a negative pole and a diaphragm sandwiched between the positive pole and the negative pole. An outer packing of the lithium-ion battery core is removed and the lithium-ion battery core is fully charged. The short-circuit metal part is drawn into the lithium-ion battery core. The positive pole tab and the negative pole tab are welded to the lithium-ion battery core and are electrically connected respectively to the positive pole and the negative pole. The sealing packaging film seals the lithium-ion battery core and a vacuum-pumping process is carried out so that the a convex imprint of the short-circuit metal part is formed on the sealing packaging film. The lithium-ion battery for a forced internal short-circuit test has the advantages that the sealing packaging film is used for sealing packaging; the leakage of an electrolyte is avoided; and after vacuum treatment, a convex imprint of the short-circuit metal part is formed on the sealing packaging film and the short-circuit metal part is located at an obvious position. The invention also discloses a preparation method of the lithium-ion battery for a forced internal short-circuit test.