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59results about How to "Meeting time" patented technology

Binocular vision positioning method for target grabbing of underwater robot

The invention relates to a binocular vision positioning method for target grabbing of an underwater robot, and belongs to the field of computer vision. The method is mainly used for accurately acquiring three-dimensional information of a grabbed target when an underwater robot works. The method comprises the following steps: double-target positioning: calculating internal and external parameters of left and right cameras; target detection: positioning a target object detection frame; binocular image correction: carrying out distortion correction and stereo correction, and determining a right image target area; binocular image stereo matching: extracting image feature points, describing the feature points, performing stereo matching, and removing mismatching; and calculating the three-dimensional information of the target in the image under the left camera coordinate. According to the method, the accurate parallax value is obtained by extracting feature points, removing unstable featurepoints through non-maximum suppression, constructing a binary descriptor, matching the feature points and removing mismatching. Through the scheme, the binocular stereo matching robustness can be improved, and meanwhile, the three-dimensional information of the detection target can be accurately obtained, so that the real-time positioning requirement on the target when the underwater robot grabsthe target is met.
Owner:HARBIN ENG UNIV

One-step method production process of ultra-low contract terylene industry fiber

The invention discloses a one-step production technology of ultra-low shrinkage terylene industrial fibers, which comprises the steps as follows: A. the preparation of high-viscosity chips: the high-viscosity chips with the viscosity of 0.99 plus or minus 0.015 are obtained by the solid phase polymerization of low-viscosity chips; B. melt spinning: the high-viscosity chips are extruded by melting by a screw extruder in a spinning manifold, spun by a spinning component, and shaped by lateral blowing cooling, and pump oiling is carried out by adopting an ester leveling agent with the kinematic viscosity of 20 to 60mm<2>/s at the temperature of 30 DEG C, and the oiling rate is 0.6 plus or minus 0.15 percent; C. heat setting by drawing: heat setting by drawing is carried out firstly by a pre-tension roller, and sequentially by two groups of drawing rollers and three groups of hot rollers for shaping; and D. shaping by winding: products can be obtained by winding by a winding head after the obtained fibers pass through a main network device. In the invention, not only the technology has high production efficiency, but also the dry heat shrinkage value of the obtained ultra-low shrinkage terylene industrial fibers is low and has high strength and excellent combination property.
Owner:ZHEJIANG UNIFULL IND FIBER

Method for estimating number of radio frequency tags based on geometric distribution

The invention discloses a method for estimating the number of radio frequency tags based on geometric distribution, which comprises the following steps: A, a plurality of readers are controlled by utilizing time synchronization technology, and meanwhile wireless signals are simultaneously transmitted to a to-be-estimated tag collection within the scope of reading. B, after a tag receives the wireless signals, a corresponding time slot reply reader is determined. C, the reader generates the estimation vector and performs analysis and calculation to the estimation vector, so that the estimation value of the number of tags in the to-be-estimated tag collection is obtained. According to the method, the accurate estimation of the number of tags can be obtained by using only few time slots, so that the requirements of the mobile network environment and other scenes sensitive to time are satisfied, and meanwhile, when the estimation of the number of tags is performed, strict and non-redundant partition performed to the to-be-estimated tag collection is not required, that is, tag sub-collection which is covered with each reader can be overlapped for a part or not be overlapped, the final estimation accuracy is not affected, and the method is suitable for actual situations better.
Owner:无锡赛睿科技有限公司

Task scheduling algorithm for tradeoff optimization of time and energy consumption under heterogeneous parallel system

The invention provides a parallel task scheduling algorithm based on the significance proportion of time and energy consumption to realize tradeoff optimization of the time and the energy consumption which are used by a task under a heterogeneous parallel system when double restrictions of the time and the energy consumption are met. The algorithm considers that the task in the actual condition is affected by various factors, the execution time is not fixed and determined and is approximate to normal distribution, so that when the task scheduling order is determined, the method for utilizing a mean value of the execution time in the prior art is not adopted, but the mean value and the variance of the execution time are simultaneously considered to utilize an approximate weight. During a task allocation stage, two performance indexes, namely the time and the energy consumption, are simultaneously considered, and the task is allocated to the proper processor according to the significance proportion of the time and the energy consumption, so that the tradeoff optimization of the time and the energy consumption according to the specific gravity is realized, and thus the system obtains higher weighting performance. The algorithm is combined with a DVFS (Dynamic Voltage and Frequency Scaling) technology and is also suitable for an isomorphic parallel system and a computer system without embedment of the DVFS technology.
Owner:HUAZHONG UNIV OF SCI & TECH

Fine finish polishing tool

PendingCN108890544AReduce usageRealize small area processingBonded abrasive wheelsCircular coneEngineering
The invention provides a fine finish polishing tool. The fine finish polishing tool comprises a grinding body and an installing connecting rod. The installing connecting rod is cylindrical, and the grinding body is disc-shaped. The installing connecting rod is coaxially connected with the grinding body, and a specific value of a diameter of the grinding body and a diameter of the installing connecting rod is 1.2-2.4. The grinding body comprises a connecting part and a polishing part. The connecting part is truncated cone-shaped, and has circular top face and bottom face, and a side face of which a shape is a circular conical surface. A diameter of the top face is less than a diameter of the bottom face. The top face is coaxially connected with the installing connecting rod. The polishing part is formed on the bottom face. The polishing part is annular and protruded and installed at the peripheral part of the bottom face of the connecting part, and the polishing part is provided with multiple discharging channels for discharging wastes generated in a polishing process. It can be clearly shown that the described fine finish polishing tool is capable of meeting multiple polishing requirements through a high-precision small-scale design, improving processing efficiency, and improving a processing success rate.
Owner:CONPROFE TECH GRP CO LTD +1

Sludge incineration flue gas treatment process

The invention discloses a sludge incineration flue gas treatment process, and relates to the technical field of sludge and industrial waste water treatment. The process comprises following steps thatwet sludge is lifted to a direct pressing sludge deep water removal process device through a screw rod pump to be subjected to water removal; then, the sludge is lifted to a sludge drying machine; then, the sludge enters an incinerator to be subjected to preheating, drying and incineration; flue gas out of the incinerator passes through a heat exchanger, heat energy is absorbed, the sludge entersa water-film separator, large-particle dust is removed, and continuous cooling is achieved; flue gas passes through the water-film separator and then sequentially enters a condenser, a first-stage electrostatic precipitator and a second-stage electrostatic precipitator, and dust in the flue gas is reduced to 10 mg and below per cubic meter; and through a high-pressure draught fan, the flue gas ispressed into a biochemical reaction basin, gas in the biochemical reaction basin is pressed into a biological soil filter through a collection draught fan, and the flue gas passes through the biological soil filter for fugitive emission. Reduction, stabilization, harmlessness and resource needs of sludge disposal and treatment in a sewage treatment plant are met.
Owner:刘学琳

Processing process for freshly-cut apples by ozone treatment

The invention discloses a processing process for freshly-cut apples by ozone treatment. The processing process comprises the following steps: (1) treating collected apples by 1-methylcyclopropene (1-MCP) and refrigerating at a refrigeration temperature from -1.0 DEG C to 1.0 DEG C and at the humidity of 80%-90%; (2) washing the apples for freshly cutting and instruments and equipment and the like in a processing process; (3) cutting and removing the core, namely cutting the apples into fresh slices with certain thickness and shape according to product requirements; (4) carrying out the ozone treatment, namely carrying out ozone gas suffocating treatment on the freshly-cut apples in a closed space; (5) packaging by a thin film bag, namely packaging the freshly-cut apples by the selected food-grade preservation thin film bag according to a certain volume or weight and sticking a label; and (6) refrigerating, namely preserving the food-grade preservation thin film bag in a cold storage with the environmental temperature from -1.0 DEG C to 1.0 DEG C. With the adoption of the freshly-cut apples processed by the invention, the preservation period is long, the loss of nutrient substances is less, the flavor is pure and no residual toxins exist; the rapid and large-scale production can be realized and the requirements of the freshly-cut apples by a market are met.
Owner:SHANDONG INST OF POMOLOGY

Drying equipment for chicken nuggets before packaging

The invention relates to the technical field of food processing machinery, and discloses drying equipment for chicken nuggets before packaging. The equipment comprises a fixed bottom plate, wherein supporting frames are mounted on two sides of the upper end of the fixed bottom plate, transmission shafts are rotatably arranged at the top ends of the supporting frames, transmission rollers are mounted in the middles of the transmission shafts, a transmission belt is mounted between the transmission rollers, and a top plate is mounted between the top ends of the supporting frames. A swing shaft is mounted in the middle of a top plate, a swing wheel is mounted in the middle of the swing shaft, a semi-circular swing gear is arranged on the outer side of the swing wheel, a swing frame is arranged on the outer side of the swing wheel, swing bars are mounted in the middles of two ends of the swing frame, a mobile plug is mounted at the end, far away from the swing frame, of each swing bar, anair guide box is mounted on the outer side of the mobile plug, and an air guide pipe is connected in the air guide box. According to the equipment, rotation of a conveyor belt is achieved, so that thechicken nuggets can be conveyed intermittently, the time needed during drying is met, left-right movement of a drying cavity is achieved, the drying cavity is matched with the air guide box, and thedrying effect is greatly improved.
Owner:SHANDONG JIASHIBO FOOD

Unattended invigilation examination cabin design and use method

The invention discloses an unattended invigilation examination cabin design and use method, and the unattended invigilation examination cabin comprises an intelligent door lock module, an identity recognition module, a remote invigilation module, a remote voice interaction module, an audio and video recording module, an abnormal behavior intelligent analysis module and a warning module. A cabin door is arranged on the surface of the unmanned invigilation examination cabin; the intelligent door lock module is arranged on one side of the cabin door. According to the unmanned invigilation examination cabin, the intelligent door lock module, the identity recognition module, the remote invigilation module and the abnormal behavior intelligent analysis module are arranged, unmanned monitoring and examination operation are conducted on the whole examination process, and the requirement that examinees take an examination at any time and at any time is met; meanwhile, the influence of human factors of invigilators is completely eliminated, and the unmanned invigilation test cabin is suitable for unmanned test paper composition and ability type tests, such as automobile driving license theory tests, ship driving license theory tests, title English tests and title computer tests, and is high in adaptability.
Owner:袁辰 +1
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