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78results about How to "Does not increase the load" patented technology

Low-carbon water granite paint

The invention relates to a low-carbon water granite paint which comprises 30-60 parts of composition A, 10-30 parts of composition B, 15-30 parts of composition C and 0.2-1.2 parts of thickener D. Compared with natural stone, the low-carbon water granite paint has the following advantages: 1. light dead weight: the low-carbon water granite paint can not increase the load to buildings, can be applied to the basal plane of the external wall without the risk of shedding, and is very suitable for external thermal insulation; 2. strong simulation sensation: the low-carbon water granite paint can be compounded to simulate various types of granite without color difference; 3. the low-carbon water granite paint is free from the restrictions of the complex basal plane, can be easily used for construction, and can completely cover the wall without seams; 4. the pointing construction can sufficiently display the tactile sensation of the decoration design of the dry-hanging stone; and 5. the surface of the coating can be treated to enhance the pollution resistance and weather resistance, thereby reducing the maintenance. Compared with the traditional real stone paint, the low-carbon water granite paint has the following advantages: 1. material saving and light dead weight as compared with the real stone paint simulated granite; 2. simple construction: the low-carbon water granite paint can be sprayed by only a single gun, but the real stone paint simulated granite needs to be sprayed by multiple guns; 3. the effect of the low-carbon water granite paint is more similar to the natural stone than the real stone paint simulated granite; and 4. when the low-carbon water granite paint is used for large-area construction, people can not feel color difference of uneven color dots caused by using the real stone paint simulated granite.
Owner:ZHONGSHAN TAILAI PAINT CHEM

Automated automobile driving device

The invention provides an automated automobile driving device. The automated automobile driving device comprises a gear shift manipulator, a gear shift manipulator control module, an accelerator pedal mechanical leg, a braking pedal mechanical leg, a clutch pedal mechanical leg, a mechanical leg control module, an automobile speed detection module, an engine rotation speed detection module and a vehicle-mounted computer control system. The automated automobile driving device can adapt to various models of automobiles and is simple in structure and small in size, the normal driving space for a driver is not occupied, the automated automobile driving risk and the automobile experiment risk are reduced, and the automobile experiment transfer and transportation cost is reduced; high-precision servo motors and high-precision motor state sensors are adopted for driving motors of the mechanical legs and the gear shift manipulator, the driving motors are in real-time communication with the vehicle-mounted computer control system, and thus control precision and stability are improved; a spatial parallel-connection four-bar mechanism forms a gear shift device of the gear shift manipulator, multiple degrees of freedom in space are achieved, and high-efficiency gear shift operation can be performed on a gearbox.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI

Data file encryption method and system based on double random numbers

The invention relates to a data file encryption method and system based on double random numbers. An original data file is segmented into sensitive data and body data; the sensitive data forms a secret key; the body data forms a ciphertext through complement processing; the two groups of data are stored in different modes; when the data is used, the data is synthesized, thus obtaining a data file, wherein the realization mode of segmenting the original data file into the sensitive data and the body data comprises following steps of firstly, determining a double random number sequence { Xn, Yn } and an extraction proportion; grouping a to-be-encrypted original data file, thus obtaining a plurality of units; in each unit, determining a starting position for extracting secret key data according to the Xn; and determining the length for extracting the secret key data according to the Yn, wherein the Yn is obtained after the original random numbers are adjusted, and the total extraction proportion is matched. According to the method and the system, the secret key with a big data quantity can be adopted without increasing the system load of a server; the data security of a cloud storage system can be improved; and the privacy of the user data can be increased.
Owner:武汉珈铭汉象教育科技有限公司

Picture file encryption and decryption method and system based on content-associated secret key

InactiveCN105743906AStrong ability to resist brute force crackingIncrease system costTransmissionGray levelMechanism based
The invention relates to a picture file encryption and decryption method and a picture file encryption and decryption system based on a content-associated secret key. When in encryption, according to the importance of data with respect to file application, the original picture file is segmented into sensitive data and main body data, the sensitive data forms a secret key, the main body data is subjected to supplemental treatment to form a cryptograph, and the secrete key and the cryptograph are respectively transmitted via different ways, and then combined at a destination to revert to the original picture file when in decryption; when the original picture file is segmented, the segmentation operation of the picture file is performed in a file layer, and the segmentation operation is performed in pixels based on a pixel gray level value or the contour line of a monochromatic chromatic value. According to the new encryption mechanism based on the content-associated secret key provided by the invention, the secret key with large data volume can be used, and the encryption and decryption processes are basically performed on the client, thus the system load is not increased; the new encryption mechanism can improve the data safety of the cloud storage system, in particular enhancing the privacy of the user data.
Owner:WUHAN YOUXIN ZHONGWANG TECH CO LTD

Device for throwing unmanned aerial vehicle

The invention relates to a device for throwing an unmanned aerial vehicle, and relates to the field of unmanned aerial vehicles. The unmanned aerial vehicle is simple in structure, light in weight, easy to control and high in reliability. The main technical scheme adopted is that the device for throwing the unmanned aerial vehicle comprises a moving part, a storage tank and a first connecting mechanism on the storage tank. The first connecting mechanism is used for connecting the storage tank to the unmanned aerial vehicle. The storage box comprises a top plate, a bottom plate and side plates.The side plates comprise a first side plate, a second side plate, a third side plate and a fourth side plate which are sequentially arranged in the circumferential direction; the bottom plate comprises a first bottom plate and a second bottom plate, and one end of the first bottom plate is connected with one end of the second bottom plate through a rotating shaft; the moving piece is connected with the rotating shaft and is connected with the first side plate and the third side plate through a second connecting mechanism, so as to drive the first bottom plate, the second bottom plate, the first side plate and the third side plate to move during movement; and the moving piece is used for closing the storage box when moving to the first position and opening the storage box when moving to the second position.
Owner:西安腾谦电子科技有限公司

A cantilever system segmentation and parameter detection method based on convexity and convexity

The invention discloses a cantilever system segmentation and parameter detection method based on convexity and convexity. The method comprises the following steps of A, acquiring three-dimensional point cloud of a catenary cantilever system; B, preprocessing the source point cloud, including object extraction and filtering noise reduction; C, performing over-segmentation on the cantilever system by using a hyper-volume clustering algorithm; D, performing step-by-step segmentation on the cantilever system by adopting an SC-LCCP algorithm, and giving out a selection range of segmentation parameters; E, obtaining linear equations of all linear parts by using a P-RANSAC algorithm, and calculating coordinates of all connection points, the point number ratio of all the linear parts and a proportional position coefficient. According to the invention, the consumption of manpower and material resources is reduced, and the method is not influenced by weather and experience judgment of operatingpersonnel; the step-by-step segmentation has better noise resistance and robustness, the detection efficiency of the catenary cantilever system is improved, and the working condition of the catenary cantilever system can be monitored and detected in real time.
Owner:SOUTHWEST JIAOTONG UNIV

Release structure carried on unmanned aerial vehicle

The invention discloses a release structure carried on an unmanned aerial vehicle, and relates to the field of unmanned aerial vehicles. The unmanned aerial vehicle is simple in structure, low in weight, easy to control and high in reliability. According to the adopted technical scheme, the release structure carried on the unmanned aerial vehicle comprises a movable piece, a storage box and a first connecting mechanism, and the first connecting mechanism is used for connecting the storage box to the unmanned aerial vehicle; the storage box comprises a top plate, bottom plates and side plates;the side plates comprise the first side plate, the second side plate, the third side plate and the fourth side plate which are sequentially arranged in the circumferential direction; the bottom platesinclude the first bottom plate and the second bottom plate, one end of the first bottom plate and one end of the second bottom plate are connected through a rotating shaft; the movable piece is connected with the rotating shaft and connected with the first side plate and the third side plate through a second connecting mechanism so as to drive the first bottom plate, the second bottom plate, thefirst side plate and the third side plate to move during movement; the movable piece is used for closing the storage box when moving to the first position and opening the storage box when moving to the second position.
Owner:陈爱霞

Two-dimensional image auxiliary segmentation method based on three-dimensional point cloud of contact network cantilever system

The invention discloses a two-dimensional image auxiliary segmentation method based on three-dimensional point cloud of an overhead contact system cantilever system. The method comprises the followingsteps: step 1, acquiring three-dimensional point cloud data of the overhead contact system cantilever system; step 2, performing uniform resampling on the three-dimensional point cloud data by adopting voxel filtering; step 3, converting the uniformly resampled three-dimensional point cloud data of the cantilever system into a two-dimensional image; step 4, segmenting the two-dimensional image obtained in the step 3, then sequentially carrying out image closed operation and median filtering processing, and returning to the three-dimensional point cloud to obtain a segmentation result of eachlinear part of the three-dimensional point cloud of the cantilever system. According to the method, two-dimensional images are adopted for auxiliary segmentation, efficient segmentation results of alllinear parts of the overhead contact system cantilever system are finally returned, the method has the advantages of being good in noise immunity, high in robustness and high in precision, and the segmentation effect of the overhead contact system cantilever system is improved; and the consumption of manpower and material resources is reduced, and the influence of weather and experience judgmentof operators is avoided.
Owner:SOUTHWEST JIAOTONG UNIV

Drone delivery device

The invention relates to a drone delivery device and relates to the field of drones. The drone of the invention has the advantages of simple structure, light weight, easy control and high reliability. The technical solution mainly adopted is: the drone delivery device, which includes movable parts, a storage box and a first connection mechanism arranged on the storage box, and the first connection mechanism is used to connect the storage box to the drone. The storage box includes a top board, a bottom board and side boards; the side boards include a first side board, a second side board, a third side board and a fourth side board arranged in turn along the circumferential direction; the bottom board includes a first bottom board and a second bottom board , one end of the first bottom plate is connected with one end of the second bottom plate through the rotating shaft; the movable part is connected with the rotating shaft, and connected with the first side plate and the third side plate through the second connecting mechanism, so as to drive the first bottom plate, the second side plate when moving The second bottom plate, the first side plate and the third side plate move; the movable part is used for closing the storage box when moving to the first position; and opening the storage box when moving to the second position.
Owner:BINHAI IND RES INST OF TIANJIN UNIV CO LTD

Mixed chamber mode locking laser oscillator and laser outputting method thereof

The invention relates to a mixed chamber mode locking laser oscillator and a laser outputting method thereof. Laser crystal is arranged between a recessed cylindrical surface reflection mirror and a protruding cylindrical surface reflection mirror. A panel reflection mirror receives light scattered by the laser crystal. A semiconductor saturation adsorption mirror receives light of the panel reflection mirror. A matching lens is arranged between the semiconductor saturation adsorption mirror and the panel reflection mirror. Pump light forms light spots, penetrates through the recessed cylindrical surface reflection mirror and is output from one side of the protruding cylindrical surface reflection mirror. The invention also comprises a laser outputting method. The method comprises steps of during chamber adjusting, shielding the semiconductor saturation adsorption mirror, wherein a second non-steady chamber is in the stable state and the laser output is output from the protruding cylindrical reflection mirror. According to the invention, a non-steady chamber structure is used in the horizontal direction where the light beam quality is output by approximating the diffraction limit; a steady chamber structure is still used in the vertical direction; mode field area in the chamber is increased; the light strength in the chamber under the power level is reduced; and on the precise that the light beam quality is kept, quite high output power is generated.
Owner:INST OF APPLIED PHYSICS & COMPUTATIONAL MATHEMATICS

Righting structure for preventing sucker rod pump plunger from eccentrically-wearing

The invention relates to a righting structure for preventing a sucker rod pump plunger from eccentrically-wearing. The righting structure for preventing the sucker rod pump plunger from eccentrically-wearing comprises a righting device, an equal-diameter sucker rod, a pump cylinder, and the plunger. The righting device and the plunger are coaxially arranged in the pump cylinder, the righting device is located at the outer end of the plunger, and an outer wall of the righting device is in threaded fit with an inner wall of the pump cylinder; and a sucker rod guiding hole is formed in the center of the righting device in the axial direction, one end of the equal-diameter sucker rod penetrates through the sucker rod guiding hole and is connected with the plunger, and an oil-through hole is formed in the righting device. According to the righting structure for preventing the sucker rod pump plunger from eccentrically-wearing, the righting device is installed on the inner wall of the upper end of the pump cylinder, and loading of the plunger and the sucker rod is not increased; and the plunger connected with the equal-diameter sucker rod is always located at the center of the pump cylinder through a limiting effect of the righting device on the equal-diameter sucker rod, and the problem of eccentric wear of the plunger is solved.
Owner:SOUTHWEST PETROLEUM UNIV +1

Heavy stubble cleaning harrow and stubble cleaning operation method of high-stubble straw

The invention discloses a heavy stubble cleaning harrow. The heavy stubble cleaning harrow is characterized by comprising a main harrow frame assembly, a middle harrow frame assembly, a left folding harrow frame assembly and a right folding harrow frame assembly, wherein the left folding harrow frame assembly and the right folding harrow frame assembly are connected to the left side and the rightside of the main harrow frame assembly in a foldable mode; the middle harrow frame assembly is fixedly connected to the lower portion of the main harrow frame assembly; the front end of the main harrow frame assembly is movably connected with a traction frame assembly; the rear end of the main harrow frame assembly is movably connected with a rear adjusting tail frame assembly; walking wheels areconnected to the rear portion of the rear adjusting tail frame assembly; the front end of the left folding harrow frame assembly is connected with a left pressing roller assembly; and the front end ofthe right folding harrow frame assembly is connected with a right pressing roller assembly. According to the heavy stubble cleaning harrow, high-stubble straw is pressed down, the straw is crushed and mixed through the front row of harrow pieces and the rear row of harrow pieces, and straw rhizomes are subjected to secondary cutting through disc slices, so that the straw can be fully crushed, repeated operation of the stubble cleaning harrow on an operated residual stubble field is not needed, and the operation efficiency is improved.
Owner:宜兴博登泰科工业装备有限公司

Refrigerant storage device, refrigeration circulation system and control method thereof

InactiveCN110296558AGuaranteed throttling effectAvoid frequent startup and shutdown problemsMechanical apparatusFluid circulation arrangementLiquid storage tankEngineering
The invention discloses a refrigerant storage device, a refrigeration circulation system and a control method thereof. The refrigerant storage device comprises a body used for containing the refrigerant, a refrigerant inlet is formed in the top of the body, a refrigerant outlet is formed in the bottom of the body; a refrigerating circulation system comprises a condenser and a throttling device, arefrigerant storage device is arranged between the condenser and the throttling device, the condenser is connected with the refrigerant inlet at the top of the body, the throttling device is connectedwith the refrigerant outlet at the bottom of the body; the refrigeration circulation system further comprises a compressor, an evaporator and an adjusting device used for adjusting the amount of refrigerant in the refrigerant storage device, the throttling device is arranged between the evaporator and the condenser, and the throttling device is connected with the refrigerant outlet at the bottomof the body through the adjusting device. According to the refrigerant storage device, the refrigerant flowing out of the refrigerant storage device is a liquid refrigerant, so that the gaseous refrigerant is remained in the liquid storage tank.
Owner:GREE ELECTRIC APPLIANCES INC
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