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136results about How to "Small footprint for storage" patented technology

Portable pocket type intelligent electric vehicle

The invention particularly discloses a portable pocket type intelligent electric vehicle. The system mainly comprises a supporting plate, power wheels, universal wheels, a battery, a control system, pressure sensors, motors and transmission mechanisms. The number of the power wheels is two. The number of the universal wheels is two. The power wheels and the universal wheels are arranged in the positions, close to the front side and close to the rear side, of the bottom of the supporting plate respectively. The four wheels make contact with the ground and support the electric vehicle. The number of the motors and the number of the transmission mechanisms are both two, and the motors and the transmission mechanisms are installed at the bottom of the supporting plate. The motors drive the transmission mechanisms and supply power to the power wheels. The four pressure sensors are installed in the left front position, the left rear position, the right front position and the right rear position of the upper surface of the supporting plate respectively and used for detecting the gravity center of an operator. The control system carries out calculation according to the gravity center of the operator and the deviation of the center position, and controls the speed of the two power wheels. The system is small in size and convenient to carry, the electric vehicle is controlled through the gravity center of people, an operation rod is not needed, pedals are not needed, and operation is natural.
Owner:叶静

Assembly welding tool generally used for hot blast main pipe elbows

The invention provides an assembly welding tool generally used for hot blast main pipe elbows, aims to solve the problems in assembling and welding a hot blast main pipe elbow with different specifications, and comprises an assembling and welding platform base, a outlet flange positioning plate, an inlet flange center distance adjustment mechanism, an inlet flange height adjustment mechanism, an inlet flange angle adjustment mechanism, an inlet flange mounting hole center distance adjustment mechanism and a supporting frame adjusting mechanism, wherein the assembling and welding platform base is fixed on the horizontal plane, the outlet flange positioning plate and the supporting frame adjusting mechanism are mounted on the assembly welding platform base, the inlet flange center distance adjustment mechanism is mounted on one side of the assembling and welding platform base, and the inlet flange height adjustment mechanism and the inlet flange angle adjustment mechanism are fixed on the inlet flange center distance adjustment mechanism. The tool provided by the invention has the characteristics of compact structure and strong universality, guarantees the quality of products with different specifications, improves the working efficiency of welding and assembling, decreases the cost of rolled steel raw material, reduces the space occupied by equipment storage, and ensures the clean and civilized production environment of an enterprise.
Owner:QINGHUANGDAO NORTH METAL HOSE

Multi-tenant-oriented container mirror image security configuration method and system, operation terminal and storage medium

The invention provides a multi-tenant-oriented container mirror image security configuration method and system, an operation terminal and a storage medium. The method comprises: a tenant using a digital certificate private key to encrypt mirror image layer security information; storing the security information ciphertext and the tenant information in a mirror image layer; starting the container, and verifying each layer in the mirror image; and after each layer of the container passes the verification, completing the container starting process. Based on the layered design of the container mirror image, resource sharing can be achieved, multiple mirror images can share the same bottom mirror image layer, the transmission time can be shortened, and the storage occupied space is reduced. According to the method and the system, risk of mirror image tampering attack is prevented. A digital signature technology and a vulnerability scanning technology are mainly utilized to reconstruct a container mirror image generation and use process and enhance the security of a container mirror image, so that the risk of tampering the container mirror image is prevented, and the security of a container in a cloud environment is improved.
Owner:SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD

Sleeping posture pressure image identification method based on HOG characteristic and machine learning

InactiveCN107330352AOvercome the problem of nighttime brightness affecting sleep qualityOvercoming Sleep Quality ProblemsCharacter and pattern recognitionSensor arrayPattern recognition
The invention relates to a sleeping posture pressure image identification method based on an HOG characteristic and machine learning. The method is characterized by comprising the following steps of performing data acquisition, namely acquiring real-time pressure data which are obtained through detection when a user functions on a large-area flexible pressure sensor array mattress; performing image conversion, namely converting the real-time pressure data which are acquired in the first step to a pressure image, wherein the step comprises procedures of establishing the image in which the image coordinate is same with sensor array distribution, and converting the pressure number which is acquired on each sensor to the gray scale of the pixel on the corresponding image coordinate, thereby obtaining the pressure image which reflects pressure distribution on the sensor array; performing image pre-processing; performing image HOG characteristic extraction, namely performing HOG characteristic extraction on the pressure image which is pre-processed in the third step, thereby obtaining an HOG characteristic set of the sleeping gesture pressure image; and performing sleeping gesture identification based on machine learning.
Owner:HEBEI UNIV OF TECH

Automatic telescopic garbage pickup rod

The invention discloses an automatic telescopic garbage pickup rod. The automatic telescopic garbage pickup rod comprises a fixed rod body with a fixed handle, a sliding rod, a telescopic mechanism, an opening and closing mechanism, an active tong arm and a linkage tong arm, wherein the active tong arm and the linkage tong arm are hinged to the front end of the sliding rod; the active tong arm and a linkage tong arm are provided with engaged fan-shaped tooth parts, the telescopic mechanism comprises a stepping motor, a second thread sleeve rod and a second threaded rod, wherein the second thread sleeve rod is installed in the fixing rod body, and the second threaded rod is installed in the sliding rod; a controlling switch controls the stepping motor to rotate forward and backward, output gears of the motor are correspondingly engaged with gear parts of all thread sleeve rods, and all thread sleeve rods screw all threaded rods correspondingly; the opening and closing mechanism comprises a movable handle, a torsion spring pin and a torsion spring, wherein the torsion spring pin and the torsion spring are arranged in the front end of the sliding rod; the movable handle is in a soft connection with the second thread sleeve rod, the second threaded rod is in soft connection with the active tong arm; and the torsion spring is mounted on the torsion spring pin and two bending ends of the torsion spring are fixed to the rear end of the active tong arm and the front end of the sliding rod correspondingly. According to the automatic telescopic garbage pickup rod, automatic telescoping and manual clamping are achieved, limitation for the garbage pickup distance is small, and the tong arm can be opened or closed simultaneously.
Owner:嵊州市光宇实业有限公司 +1

Neural network model real-time automatic quantification method and real-time automatic quantification system

The invention discloses a neural network model real-time automatic quantification method, which is based on an embedded AI accelerator, and comprises the following steps: carrying out embedded AI neural network training at a PC end, establishing a PC end deep learning neural network, and training an input floating point network model of an embedded AI model; quantizing the floating point network model into an embedded end fixed point network model; preprocessing data needing to be quantized, and realizing all acceleration operators of each layer of the model network through a hardware mode; deploying embedded AI hardware of the embedded end and transplanting the neural network model of the embedded end, and transplanting the neural network model of the built AI hardware platform. The invention further discloses a neural network model real-time automatic quantification system. According to the invention, algorithm acceleration is realized based on an embedded AI accelerator hardware mode, the storage occupied space of a neural network model can be reduced, the operation of the neural network model can be accelerated, the computing power of embedded equipment can be improved, the operation power consumption can be reduced, and the effective deployment of the embedded AI technology can be realized.
Owner:SENSLAB INC

Solar heating system, multi-heat-source heating system and multi-heat-source heat supply method

The invention discloses a multi-heat-source heating system utilizing solar energy. The multi-heat-source heating system comprises an air source heat pump, a radiator, a radiator water inlet pipe and a radiator water return pipe, and further comprises a solar heat collector, a high expansion non-pressure water tank, a heat exchange high-pressure water tank and a solar heat collector electric supplement system. A heat collector water outlet pipe and a heat collector water return pipe are arranged between the solar heat collector and the high expansion non-pressure water tank. An expansion water tank water return pipe and an expansion water tank water inlet pipe are arranged between the high expansion non-pressure water tank and the heat exchange high-pressure water tank. An air source heat pump water inlet pipe and an air source heat pump water return pipe are arranged between the air source heat pump and the heat exchange high-pressure water tank. The radiator water inlet pipe and the radiator water return pipe are both connected with the heat exchange high-pressure water tank. The solar heat collector electric supplement system is arranged on the radiator water inlet pipe. A new idea is provided for rural-urban continuums without urban heat supply pipeline networks and natural gas pipeline networks and engineering construction temporary heating, and references are provided for new energy development, environment protection and sustainable development paths of China.
Owner:中铁二十一局集团第二工程有限公司

Wood sawing and splitting trolley

The invention relates to a wood sawing and splitting trolley. The wood sawing and splitting trolley comprises a trolley body; a conveying device is arranged on the upper portion of the trolley body and comprises a frame body and supporting columns, the frame body is fixedly connected with the trolley body through the supporting columns, and a plurality rolling wheels are evenly distributed on theframe body in the length direction of the frame body; one end of the frame body serves as the feeding end, the other end of the frame body serves as the discharging end, and the discharging end is outwards sequentially provided with a clamping positioning device and a wood sawing device; the clamping positioning device comprises a first motor fixed to the side wall of the frame body, a rotating shaft is fixed to an output shaft of the first motor, and a clamping rod and a positioning rod are sequentially fixed to the rotating shaft in the length direction of the rotating shaft; the wood sawingdevice comprises a support fixed to the trolley body, and a second motor; and a first air cylinder is horizontally fixed to the support, a saw blade is mounted at the output shaft end of the first air cylinder and driven by the second motor, and a positioning base is fixed to the position, between the trolley body and the frame body, on the trolley body. The wood sawing and splitting trolley is reasonable in structure and has multiple functions, the occupied space for storing is small, carrying and using are convenient, and the safe and reliable effects are achieved.
Owner:湖州吴兴久虹机械有限公司

Portable type vertical take-off and landing reconnaissance and surveillance unmanned aerial vehicle

PendingCN110466750AEasy to carryDecreased lift-drag characteristicsWeight reductionPower plant typeJet aeroplaneFiber
The invention relates to a portable type vertical take-off and landing reconnaissance and surveillance unmanned aerial vehicle. Four quadcopter power assemblies are symmetrically installed on a rotorswing arm on a wing so that the unmanned aerial vehicle can take off and land vertically. Because of a tail thrust type propeller on the tail part, it can be avoided that the lift-to-drag feature isreduced due to the slip flow of the propeller. Because an empennage is arranged in the shape of an inverted V, and has the functions of both a vertical tail and a horizontal tail, and the structural weight of an airplane can be decreased. Because the empennage, the wings and the rotor wings are arranged in a multi-segment manner according to the designing, the folding function can be achieved, andthe unmanned aerial vehicle is convenient to disassemble and assemble. Because many parts are made of carbon fiber materials, the weight is reduced, and the unmanned aerial vehicle can be convenientto carry about. The portable type vertical take-off and landing reconnaissance and surveillance unmanned aerial vehicle has the advantages of being capable of taking off and landing vertically without a runway, capable of being quickly disassembled or assembled, easy to operate, convenient to carry about, and capable of being replaced quickly because task load is modularized.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Inflatable greenhouse applicable to contaminated site

The invention relates to an inflatable greenhouse applicable to a contaminated site. The inflatable greenhouse comprises a greenhouse shaped air film, fixing piles are arranged at the edge of the airfilm, a plurality of steel wire ropes are arranged outside the air film, and two ends of any one of the steel wire rope are connected with the corresponding fixing piles. Air inlet equipment is arranged on one side of the greenhouse, and a circulating tail gas discharging system is arranged on the other side of the greenhouse. The lateral side of the greenhouse is provided with access ports, and the circulating tail gas discharging system is connected with a controller. By consideration of harms to physical health of onsite workers and surrounding residents due to proneness of toxic and harmful gases and malodorous gases to volatilization and dispersion into surroundings in a contaminated site treatment process and consideration of particularity of site remediation construction, special utilization of the inflatable greenhouse is provided, the problem of odor dispersion in an excavation and remediation process of the organic contaminated site is effectively solved, smoothness and safety in site remediation are guaranteed, the circulating tail gas discharging system is safe and environmentally friendly, and convenience in use, mounting, demounting and storage and recyclability are realized.
Owner:中节能大地(杭州)环境修复有限公司

Method for combining sludge treatment and straw treatment to produce marsh gas

The invention discloses a method for combining sludge treatment and straw treatment to produce marsh gas. The method comprises the following specific steps of: 1, injecting sludge with 80 percent of water which is discharged from a domestic sewage treatment plant into a diluting tank, and adding water for diluting until the water content is between 93 and 94 percent; heating the diluted sludge to a temperature of 37 DEG C, feeding the sludge into a sludge anaerobic reactor, and carrying out an anaerobic reaction; and generating the marsh gas after 20 days of anaerobic reaction period; 2, adding wheat straws and corn straws with 20 percent of water and marsh slurry generated in the sludge anaerobic reactor in a ratio of 1:15 into a soaking tank, sealing, stirring, mixing and soaking; and 3, feeding a solid-liquid mixture obtained in the step 2 into a straw anaerobic reactor at the constant temperature of 37 DEG C; and thus obtaining the marsh gas after 40 days of reaction period. By the method, secondary pollution caused by discharging the marsh slurry generated in the sludge anaerobic reaction is prevented, and waste of manually added urea is prevented. The method has the advantages of large vehicle traffic capacity, small storage and occupied area, high safety, fire prevention and high production efficiency.
Owner:王琳

Electricity paving device for rapidly and smooth pavement along curvilinear path

The invention discloses an electricity paving device for rapidly and smooth pavement along a curvilinear path, comprising a bottom plate; two short side holes are arranged on a short side part, and two long side holes are arranged on the long side part, the short side holes are symmetrical to the long side holes; when two bottom plates are abutted, the space between the short side holes and the long side holes is equal; upright posts are plugged in the short side holes and the long side holes, and upright post holes are arranged at the bottom parts of a short side plate and a long side plate; two positioning grooves in parallel to the short side are arranged on the bottom plate, and two positioning grooves are symmetrically arranged; a clapboard extended upwards is spliced in the positioning grooves, upper parts of the short side plate and the long side plate are buckled with cover plates with consistent shape as the bottom plate. The electricity paving device is reasonable in structure, able to extend and pave along a straight line as well as pave in an arch form at any time and any place according to the turning demand; the device is tight in leakage, smooth in transition, simple and fast in construction, high in efficiency, high in interphase safety of cables, small in placement space, convenient to transport, not easy to break; therefore, the electricity paving device is especially suitable for hilly area.
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +2

Multipurpose electric power channel

The invention discloses a multipurpose electric power channel which comprises a bottom plate. Two short-edge holes are formed in a short-edge portion of the bottom plate, two long-edge holes are formed in a long-edge portion of the bottom plate, and the short-edge holes and the long-edge holes are symmetrically formed; the distances from the short-edge holes to the long-edge holes are equal to one another when two bottom plates are butted to each other, upright columns are inserted in the short-edge holes and the long-edge holes, upright column holes are formed in the bottom of a short-edge plate and the bottom of a long-edge plate, two positioning grooves which are parallel to a short edge are formed in the bottom plate and are symmetrically formed, partition plates which upwardly extend are inserted in the positioning grooves, a cover plate is fastened on the upper portion of the short-edge plate and the upper portion of the long-edge plate, and the shape of the cover plate is consistent with that of the bottom plate. The multipurpose electric power channel has the advantages that the multipurpose electric power channel is reasonable in structure, not only can be extensively laid along straight lines, but also can be laid to form arcs according to turning requirements in any places at any time, is tight in connection, smooth in transition and high in efficiency and can be easily and quickly constructed, and cables are high in inter-phase safety; the multipurpose electric power channel is small in occupied storage space, convenient to transport, difficult to damage and particularly suitable to be used in hilly regions.
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +2

Solid polycarboxylate-type slump retaining agent and preparation method thereof

The invention discloses a solid polycarboxylate-type slump retaining agent and a preparation method thereof. The preparation method of the slump retaining agent comprises the steps that maleic anhydride and di-trimethylolpropane are prepared into ester monomers under the action of a catalyst, then the ester monomers, TPEG and crylic acid are subjected to pure copolymerization under the action of a composite initiator and a hydrophobic chain transfer agent, and a molten state polycarboxylate-type slump retaining agent is obtained; finally, the polycarboxylate-type slump retaining agent is fed to a condensation slicer through a heat preservation pipeline for slicing, and the white flaky solid polycarboxylate-type slump retaining agent is obtained. The acid-ester ratio of a polycarboxylate-type water reducing agent is adjusted, the self-prepared ester monomers are introduced, and by means of the combination of an oil-soluble composite initiator and a water-soluble composite initiator, the solid polycarboxylate-type slump retaining agent is prepared in a molten state. The slump retaining agent can still show good fluidity keeping capacity at a low mixing amount and is stable in state and safe and environmentally friendly in preparation process, and meanwhile the production cost is reduced.
Owner:NANJING HYDRAULIC RES INST

Fast inlaying grafting assembly swimming pool

The invention relates to a fast inlaying grafting assembly swimming pool, which comprises a pool bottom, pool walls and a water purification device, wherein the pool walls are enclosed by a plurality of decorative structural slabs connected end to end; the upside, lower side and lateral sides of the slab body of each decorative structural slab extend inward respectively to form up flanging, down flanging and side flanging; a backing plate for the side flanging is arranged at the inner side of the side flanging; the external side of the side flanging is coated with U-shaped section bars; injection inlaying grafting parts are vertically distributed at the external sides of the U-shaped section bars at intervals and horizontal step bolt holes are arranged in the middle parts of the injection inlaying grafting parts; and bolts pass through the step bolt holes to detachably connect the injection inlaying grafting parts with the side flanging, the backing plates for the side flanging and the U-shaped section bars together. The device has simple structure and reasonable cost, can be transported, assembled and disassembled conveniently and fast due to light weight, can be assembled for use and disassembled at any time, has high strength, corrosion resistance and long service life, and greatly exceeds the size of the existing temporary assembled and disassembled swimming pool.
Owner:侯宝权

Generation method based on Edwartz curve digital signature

The invention relates to a generation method based on an Edwartz curve digital signature. The method comprises the steps of negotiating to generate a system secret key, negotiating to generate a digital signature, and verifying the signature. According to the invention, a sub-private key adopted in the step of negotiating to generate the system secret key is fairly and safely generated by the hashvalues of the private key character strings of a first communication party and a second communication party; the first communication party and the second communication party are required to negotiateto generate a signature system public key, any party cannot forge the signature system public key, and the obtained signature system public key is compressed and stored by using an Edwartz curve upper point compression method, so that the occupied space for system storage is reduced. In the step of negotiating to generate the digital signature, a part of the signature r is divided into two parts,a part of the signature s is divided into three parts, the homomorphic encryption method ensures that both parties cannot obtain the information of the opposite party, any party cannot obtain the information of the opposite party and counterfeit the signature privately, so that the security of the signature and the fairness of both participating parties are improved.
Owner:SHAANXI NORMAL UNIV

Mold display device for mathematics education

The invention discloses a mold display device for mathematics education, and relates to a display device. The mold display device concretely comprises a table plate and a box body. Two pulling rods are extruded, so that when a second spring is compressed, a clamp post can be moved out from a second clamp groove; therefore the upward or downward moving regulation on a long strip rod is completed; the long stirp rod upwards moves, one side wall of a connected curve tilting plate upwards moves; the other side wall of the curve tilting plate downwards moves; an anti-slip plate is in contact with the ground; in the process that the box body needs to be placed, the friction with the ground is increased; the placement stability is improved; the table plate folding or unfolding operation is performed in a first spring clamp connection mode; the curve tilting plate vertical moving operation is performed in a second spring clamp connection mode; the time and the labor are saved in the operationprocess by people; convenience is provided for the use for teaching; in the process that the teaching mold is not used, the teaching mold can be stored inside the drawer box with an air bag pad; collision force generated in the shaking process can be buffered; the protection effect is improved; the damage possibility is reduced.
Owner:YANAN UNIV
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