Patents
Literature

1243results about How to "Improve applicability" patented technology

Temperature sensing cooker capable of being used for various cooking ranges

The invention discloses a temperature sensing cooker capable of being used for various cooking ranges. The temperature sensing cooker comprises a pot body and a temperature sensing color change device in contact connection with the pot body, wherein the temperature sensing color change device comprises a plurality of temperature sensing color change bodies with non-overlapped color change temperature ranges, i.e., the plurality of color change bodies correspond to different cooking ranges. If open fire cooking ranges such as coal gas cooking ranges or natural gas cooking ranges are used for heating the temperature sensing cooker, when the pot bottom reaches the target temperature, the temperature sensing color change bodies of the pot body change the color; if electric cooking ranges such as induction cookers or electric ceramic cookers are used for heating, when the pot bottom reaches the target temperature, the temperature of the located pot body position of the temperature sensing color changing device is different front the temperature of the pot body; at the moment, the other corresponding temperature sensing color change body changes the color. The temperature sensing cooker has the advantages that when various different cooking ranges are used for heating, the temperature sensing cooker can correctly and timely reflect whether the pot bottom reaches the target temperature or not so that a user can master the cooking level; the generation of fume is reduced; the applicability to different cooking ranges is improved.
Owner:INFINITUS (CHINA) CO LTD

Method for analyzing load and stress distribution and stress levels of composite mechanical connection pins

The invention relates to a method for analyzing load and stress distribution and stress levels of composite mechanical connection pins, which is technically characterized by comprising the following steps of: establishing a two-dimensional shell beam model to calculate the load distribution of the connection pins, and taking out the bypass load of a rectangular region nearby a target pin from the two-dimensional model; newly establishing a three-dimensional physical model comprising target pins on the basis of the two-dimensional shell beam model according to geographic information, such as the size of the rectangular region, the sizes of bolts and the like; and calculating the three-dimensional model by taking the bypass load taken out from the two-dimensional model as the force boundary condition of the three-dimensional model through applying the pre-tightening forces of the bolts to obtain the stress distribution and the stress level of the region. According to the method for analyzing the load and stress distribution and the stress level of the composite mechanical connection pins, the advantages of a two-dimensional modeling method and a three-dimensional modeling method in a finite element model are fully performed, and thereby, a rapid and accurate computing method is provided for distribution calculation and stress analysis on the connection pins in project, and the design cost is reduced.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Inertia-assisted multi-frequency multi-mode GNSS cycle slip repair method and system

The invention provides an inertia-assisted multi-frequency multi-mode GNSS cycle slip repair method and system. The method comprises the steps that cycle-slip observation is conducted on all satellites to judge the satellites with the existence of cycle slip; after cycle-slip parameters are determined, a pseudo space and phase position non-difference uncombined epoch difference observation equation on frequencies and systems is formed, and a clock difference variation parameter is introduced; according to the activity degree of an ionosphere layer, fitting functions with different orders in a sliding window are used to model and forecast the time-varying ionosphere layer; inertia-assisted cycle slip calculation is conducted, and posteriori residuals of the cycle slip repair equation are tested; a three-step method is used to fix cycle slip values and carry out the cycle slip repair, and finally phase position observation values are repaired. The inertia-assisted multi-frequency multi-mode GNSS cycle slip repair method and system can accurately repair cycle slip values on different frequencies of different GNSS systems in a dynamic and complicated environment, and provide clean and pollution-free observation data for subsequent positioning and calculating treatments.
Owner:WUHAN UNIV

Hydraulic climbing formwork construction method for leaning tower of cable-stayed bridge

The invention discloses a hydraulic climbing formwork construction method for a leaning tower of a cable-stayed bridge. The method comprises the following steps: measuring and positioning the leaning tower and embedding an embedded part; erecting a formwork and pouring a first section of concrete, and mounting an anchoring system, a bearing bolt (1) and a climbing frame (3); mounting a bearing frame and a bearing platform on the anchoring system; mounting a template moving frame and an upper platform system, using the upper platform system for erecting the formwork, embedding the embedded part and pouring a second section of concrete of a tower column; mounting a lower platform and de-molding by moving the upper platform system; mounting the anchoring system in a third stage and mounting a climbing guide rail (5) and a guide rail supporting leg (6); operating a hydraulic system, lifting the whole frame to the third stage of the tower column, and mounting a lower-layer platform; assembling the mould by moving the upper platform system, embedding the embedded part and pouring a fourth section of concrete of the tower column; and operating the hydraulic system, lifting the whole frame to the fourth stage of the tower column, and entering into a circulating construction stage. According to the method provided by the invention, the mounting of the template is quickly and efficiently finished under the condition of the leaning tower column and the work load of mounting the template and the bracket is saved.
Owner:RAILWAY NO 10 ENG GRP CO LTD

Independent desire expression method based on auditory sense cognition neural signal

ActiveCN101464729AImprove applicabilityNot easy to cause visual fatigueInput/output for user-computer interactionDiagnostic recording/measuringLate positive componentAuditory sense
A method based on auditory cognitive neural signals for autonomously expressing willingness relates to the fields of the assistance to the disabled, and the human-computer interaction. The method is characterized in that the method comprises the following steps: inputting the required willingness code book into a computer, wherein, a speech index is short Chinese and English, or digital speech, and an index content is the speech on completely expressing willingness; arranging an EEG detect electrode at a posterior position of the top of the head of a user; using a computer to repeatedly play a voice sequence consisting of codebook index speech in a random order; noticeably choosing the index speech corresponding with the target willingness should and conducting the identification of sound properties; using an EEG amplifier to record brain waves; aligning the brain waveforms in a segmenting manner according to the time starts of the index speech; detecting whether the late positive components (LPC) and the relevant characteristic waveforms exists or not; defining brain waves which has characteristic waveforms as a target index, tracking down the corresponding the index content through the willingness codebook; and playing the corresponding speech expressing willingness through an audible device.
Owner:TSINGHUA UNIV

Pneumatic loading type friction wear testing machine

The invention discloses a pneumatic loading type frictional wear tester which comprises a sample stage, a loading mechanism, a drive mechanism, a data acquisition unit and a stander; the sample stage is arranged on the stander and can do rotary motion or alternate motion under the driving of the drive mechanism; the loading mechanism comprises a head support, a friction head, a cylinder; the friction head is arranged on the head support. The head support is connected with the cylinder and can cause that the friction head on the head support closely pressures or breaks away the surface of the sample arranged on the sample stage. The data acquisition unit gathers the pressure applied on the sample by the friction head and the frictional data. The cylinder adjusts the pressure applied on the sample by the friction head according to the information fedback by the data acquisition; in the pneumatic loading type frictional wear tester, the sensor gathers the pressure information, and a computer controls an electric reducing valve to regulate the throughput of the cylinder; the regulation range of the pressure is wider; the pneumatic loading type frictional wear tester can effectively evaluate the frictional wear performance of a running pair with different materials and technique.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

Roadway surrounding rock deformation, rock burst and coal and gas outburst comprehensive treatment method

The invention relates to a roadway surrounding rock deformation, rock burst and coal and gas outburst comprehensive treatment method. The method is based on the intensity enhancing effect of active support of a rock bolt on a surrounding rock body, the weakening, pressure relief and rock burst prevention and treatment effects of large-diameter drill holes on a coal body, and the capability of a gas drainage system to effectively reduce the gas content of a coal seam. First, a rock bolt active support technology is adopted in the two roadways of a working face to enhance the intensity of surrounding rock; then, large-diameter pressure relief boreholes are machined every 3-3.5 meters among rock bolts, and the large-diameter pressure relief boreholes are sealed; and gas drainage boreholes are machined at regular intervals to drain gas in a coal seam. The rock bolt support structure and large-diameter borehole sealing jointly form a roadway surrounding rock reinforcing area, which can effectively control roadway deformation and maintain the working space. The reinforcing area, a weakening area and a drainage area formed by the method of the invention can effectively prevent and treat large deformation of roadways, rock burst, coal and gas outburst and other deep mine dynamic disasters, and provides safeguard for the safety production of mines.
Owner:CHINA COAL TECH ENG GRP CHONGQING RES INST

Method for achieving home credible networking based on safety pendent of smart home device

A method for achieving home credible networking based on a safety pendent of a smart home device is provided. The method comprises the steps that automatic credible networking is conducted on a smart home device and an smart home gateway, the safety pendant of the smart home device obtains a public and private key pair, a hardware PIN code and a uniform key K and uploads a pendant public key to a home data service center in a cloud to complete delivery initialization work of the safety pendent of the smart home device; after the smart home gateway and the smart home device integrated with the initialized the safety pendent of the smart home device complete legal verification of the smart home device by aid of the home data service center of the cloud, the automatic credible networking with the smart home device and a negotiated random communication encryption key achieve credible identity binding of the smart home gate and the smart home device of a user; the smart home gate achieves communication encryption of an interior network environment of a smart home through the random communication encryption key. The method for achieving home credible networking based on the safety pendent of the smart home device has the advantages of being good in user experience and high in generality, safety and confidentiality.
Owner:INST OF INFORMATION ENG CAS

Internet photo geospatial positioning method based on street views

The invention relates to an internet photo geospatial positioning method based on street views, comprising the steps of preprocessing a street photo gallery, extracting and describing features, and establishing a feature index; querying a nearest-neighbor feature of each feature of a photo to be queried, performing voting, trimming and smoothening voting results to obtain a most similar photo, using the most similar photo as a center of circle to delimit a buffer area according to a distance between two known street view points; calculating similarity of street photos in the buffer area to the photo to be queried so as to screen out photos of high similarity to form a similar photo set; subjecting both the similar photo set and the photo to be queried to feature extraction and matching, using an SfM (structure from motion) algorithm to register the photos, and generating a relative positional relationship between a sparse point cloud and a camera; calculating exterior orientation elements of the unknown photo to be queried according to the known street view point coordinates so as to finish positioning and orientating. Practice proves that the method provided herein enables electronic photos of any source on the internet to be positioned accurately.
Owner:NANJING UNIV +1

A pedestrian target tracking method based on human skeleton structured features

ActiveCN109949341AImprove applicabilityImprove extraction capability and accuracyImage analysisCharacter and pattern recognitionPedestrianHuman skeleton
A pedestrian target tracking method based on human skeleton structured features comprises the following steps: recording a target motion video, performing equalization preprocessing on a target motionvideo image, extracting skeleton coordinate information of a pedestrian, manually selecting and tracking the target pedestrian, establishing a target initial feature template image, and tracking thetarget pedestrian; if the target pedestrian is normal, continuing tracking, and if the target pedestrian is lost, executing the next step; extracting a target structured feature image according to thevideo image before the target pedestrian is lost and the skeleton coordinate information of the target pedestrian, updating the target feature template image, extracting structured feature images ofall pedestrians, matching the structured feature images with the target feature template image one by one, and repositioning the position of the target pedestrian according to a matching result; realizing target tracking continuously. The method can achieve the stable and continuous tracking of the target pedestrian in a complex multi-person scene, and solves the problem that a current tracking algorithm is easy to lose a tracking target under the conditions of multi-person overlapping, shielding and the like, and is difficult to automatically find the tracking target.
Owner:GUANGDONG INST OF INTELLIGENT MFG

360-degree floating three-dimensional phantom imaging system

The invention provides a 360-degree floating three-dimensional phantom imaging system. The 360-dgree floating three-dimensional imaging system is provided with at least one glass plate; at least one projector corresponding to the glass plate is arranged below the at least one glass plate; an electroplating film of which the thickness is 5 to 25 percent is coated on the surface of the glass plate facing the projector; a processor is electrically connected with the projector; the included angle between the glass plate and the corresponding projector is 45 degrees; the projector is used for implementing the following steps of: reading prestored three-dimensional image information according to a first user instruction and playing by using the projector; and adjusting the shading value of the background of a display image and the position and the size of the display image in the projector according to a second user instruction. Through the 360-degree floating three-dimensional phantom imaging system provided by the invention, the image can be seen with naked eyes; and the 360-degree floating three-dimensional phantom imaging system provided by the invention is environmental-friendly, has high applicability, is easy to operate and has the relatively low requirement on light pollution brightness of the external environment.
Owner:杨绿 +1

Lizard simulated amphibious robot

The invention discloses a lizard simulated amphibious robot, and belongs to the field of bionics. The amphibious robot comprises a body part formed by an external frame, an internal frame and a driving mechanism and legs formed by four sets of crank and rocker mechanisms, wherein a driving motor is mounted inside the internal frame; the internal frame is positioned inside the external frame; the driving motor in the drive mechanism transmits power to transmission shafts positioned at the front part and the rear part of the internal frame through two sets of reduction devices to enable the transmission shafts to drive the crank and rocker mechanisms mounted at the two ends of each transmission shaft to move; a baseboard is mounted at the lower part of each crank and rocker mechanism. According to the invention, during the movement, the lizard simulated amphibious robot can perform three key actions, namely slapping, hitting and recovering while walking on the water; the lizard simulated amphibious robot has the advantages that the simulation of the movement of basilisk lizards is realized, the applicability for amphibiousness can be improved, besides the movement resistance is small, the moving efficiency is high, the carrying capacity is strong, the application range is wide, and the lizard simulated amphibious robot can be used for land and water rescue and monitoring.
Owner:BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products