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156results about How to "Easy to detect in real time" patented technology

Method and system for multimodal presence detection

A presence device operable in a first mode and a second mode is associated with a communication device. In the first mode, a user using the presence device is biometrically authenticated and a presence confirmation input is received from the communication device. In the second mode, a user-entered log-in input is received from the communication device. A central presence database is updated to indicate that the communication device is active for the user. A received message which is to be routed to the user is sent to the active device indicated by the central presence database.
Owner:AT&T INTPROP I L P

Method and device of detecting object in image and system including the device

The present invention provides a method for detecting a specific object in an image to be detected, including: a feature extraction step for extracting an image feature of the image to be detected; and a detection step for detecting detection windows with various sizes of the image to be detected according to the extracted image feature by using classifiers with various sizes corresponding to at least a part of the detection windows with various sizes, so as to determine the presence and location of a specific object in the image to be detected. The invention further provides an object detection device and a system including the device. The method, device and system for detecting a specific object in an image to be detected can improve the precision and increase the speed of the object detection.
Owner:SONY CORP

Dynamic brain function detection method and system based on near infrared spectrum and blood pressure information

The invention relates to a dynamic brain function detection method and system based on a near infrared spectrum and blood pressure information. The method comprises the steps that 1, near infrared spectrum detection equipment is used for collecting a brain blood oxygen signal of a testee, and meanwhile blood pressure equipment is used for collecting arterial blood pressure of the testee; 2, a brain blood oxygen signal and the blood pressure signal collected in the step 1 are input into a wavelet coherence analysis module, the wavelet coherence analysis method is used for performing time frequency analysis on the blood pressure signal and the brain blood oxygen signal of each channel, a pair of near infrared transmitter and an absorption sensor form a channel, and different physiological source rates correspond to different feature frequency sections; 3, according to the time frequency analysis in the step 2, a wavelet coherence coefficient of each feature frequency section is obtained, and the wavelet coherence coefficient shows consistency of the blood oxygen signal and the blood pressure inside the feature frequency section. By means of brain blood oxygen and arterial pressure physiological signals, on the basis of wavelet coherence or wavelet phase coherence or effect connection analysis, the noninvasive dynamic brain function is easily evaluated.
Owner:国家康复辅具研究中心

Radar target detection method based on Hough transform

The invention belongs to the field of radar technology and particularly relates to a radar target detection technology, which comprises the following steps: firstly, arranging Nt groups of radar-received signals subjected to matched filtering process in a two-dimensional array B in data space according to range r-time t: BtN-(i)=[dNrdN-(r-t) ellipsis d1]<T>, where i is not larger than Nt and not less than 1 and B, representing the radar-received signal at a time point ti; transforming coordinates of the BtN-(i) to a parametric space with intercept b-slope k; moving the array BtN-(i) to achieve such a mapping that each speed (i.e. slope) kj, kj is not larger than +kmax nad not less than - kmax: moving array PtN-(i) downwards by abs(kjti) units for ki larger than 0, removing data between d1 and dkN-(jti) and adding 0 in front of Dnr; and moving array BNt-(i) upwards by abs(kjti) units for ki less than 0, removing data between dkN-(jtN(i)+1) to dNR, and adding 0 behind d1 to obtain a two-dimensional array DtN-(i) in the parametric space; calculating sigmaDtN-(i) and detecting in a set threshold; and subjecting the target position detected in the parametric space to reverse coordinate transformation to obtain the motion trajectory of a radar target in the r-t data space within the radar period. The invention can greatly reduce the computation amount, thus improving the radar target detection speed and facilitating the realtime detection of the radar target.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

A detection method and device of a polymer membrane ion selective electrode

The invention relates to a method and a device for detecting a polymer film ion selective electrode. The method comprises the following steps of: putting a nucleic acid aptamer and polycation into a detection pond, and inserting a polycation selective electrode into the detection pond to generate a comparison signal; adding the nucleic acid aptamer into the detection tank, reacting with standard solution of a substance to be detected, adding the polycation, and inserting the polycation selective electrode into the detection pond to generate standard signals of the standard solution of the substance to be detected at different concentrations; obtaining a standard curve according to the standard signals and the comparison signal; adding liquid to be detected into the detection pond, adding the nucleic acid aptamer, reacting with the liquid to be detected, adding the polycation in the ratio to conduct the signals, and inserting the polycation selective electrode into the detection pond to generate a sample signal; and acquiring a signal to be detected according to the sample signal and the comparison signal, and acquiring the concentration of the liquid to be detected by the reference of the standard curve. The method is wide in application range, high in generality, large in electrode response signals and obvious in potential change, so the method is a marking-free and immobilization-free method.
Owner:YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI

Integrated magnetic elasticity sensor

The invention relates to an integrated magnetic elasticity sensor, belonging to the technical field of micro electro mechanical systems. The integrated magnetic elasticity sensor comprises a glass substrate, a magnetic field excitation offset coil, a signal reception coil, a sensor support, a magnetic belt material and insulation material layers. The magnetic field excitation offset coil is located on the glass substrate; the signal reception coil is located above the magnetic field excitation offset coil; the sensor support is located above the signal reception coil; the insulation material layers are respectively located among the magnetic field excitation offset coil, the signal reception coil and the sensor support; and both ends of the magnetic belt material are fixed on the sensor support. The invention has the advantages of high processing precision and small size of the device, can eliminate background signals of the excitation signal in the reception coil by adopting an 8-shaped collection coil, realizes real-time monitoring of vibration signals and can realize the portable characteristic.
Owner:SHANGHAI JIAO TONG UNIV

Method for quantitatively detecting microvolt T-wave alternans

The invention discloses a method for quantitatively detecting microvolt T-wave alternans. A new effective quantitative TWA (T-wave alternans) detection index is provided by analyzing external shape of a T-wave alternans scatter diagram according to the relation of the external shape and the T-wave alternans. By means of improved T-wave window analysis method, the method includes: subjecting 128 continuous heartbeat T-wave sampling point sequences to first difference and drawing a scatter diagram, analyzing the relation of the external shape of the scatter diagram and the T-wave alternans, researching an effective 'cross searching method' to subject the scatter diagram to edge extraction, then defining three quantitative parameters of short axis, long axis and the ratio of the short axis to the long axis at the 'edge' of the scatter diagram, utilizing the ratio of the short axis to the long axis as quantitative detection index Axial_ratio, and finding a proper threshold to judge whether the T-wave alternans exist or not.
Owner:SHANDONG NORMAL UNIV

Fluid-solid interface wave based sediment concentration detection device and detection method

The invention discloses a fluid-solid interface wave based sediment concentration detection device and a detection method, and belongs to the technical field of ultrasonic detection and analysis. Fluid-solid Schotle waves are generated by a signal sending module at an excitation measurement side of an excitation signal module and are propagated along a bed, and fluid-solid Schotle wave signals are received by a signal receiving module; the received signals pass through a signal processing module, and then the average velocity of the Scholte waves is extracted and is processed by an algorithmmodule to obtain the average sediment concentration in a measurement range of the bottom of the detected river. The detection method provided by the invention has a large one-time detection range, and an average effect in a wave propagation range is detected by the fluid-solid Schotle waves because the sediment concentration of small regions is possibly different, accordingly, the overall macro detection and analysis are favorable; the method provided by the invention is favorable for real-time detection without sampling for re-detecting; and the relative amplitude of fluid-solid interface waves is large, so that the measurement accuracy of ultrasound can be relatively improved.
Owner:HOHAI UNIV CHANGZHOU

Paper-based microfluid device capable of automatically switching passages and application of paper-based microfluid device

The invention discloses a paper-based microfluid device capable of automatically switching passages and an application of the paper-based microfluid device. The paper-based microfluid device comprises a plurality of paper-based microfluid single layers which are superimposed and respectively comprise a hydrophobic isolation area and a hydrophilic microflow passage, the paper-based microfluid single layers form microflow passages, and each microflow passage is provided with a microflow switch; water absorption resin is arranged between each microflow passage and the corresponding microflow switch, after liquid flows into the water absorption resin, the resin is expanded after absorbing water to downward push each microflow switch and a reagent carrying gasket below the microflow switch, and after the reagent carrying gasket moves downwards to be contacted with the microflow passage below the reagent carrying gasket, and another microflow passage is opened, so that the automatic switching of the passages can be completed. By adopting the paper-based microfluid device, the function of a paper-based microfluid for automatically switching the passage can be realized, multiple biochemical reagents can be introduced through the automatic switching of the passages under the situation that no auxiliary device and profession personnel are needed, the multi-step biochemical reaction can be carried out, and the device is used as one part of a biochemical detection device, so that the biochemical detection device is miniaturized, and the paper-based microfluid device has a function for amplifying a detected information molecule.
Owner:许毅 +2

Cloud platform system for monitoring and managing production process data

The invention discloses a cloud platform system for monitoring and managing production process data, and belongs to the field of Internet data acquisition. The cloud platform system for monitoring andmanaging production process data is a manufacturing industry intelligent application product project based on Internet +. A cloud platform, a mobile internet, a WeChat applet and a two-dimensional code are used for manufacturing an intelligent manufacturing cloud platform product conforming to small and medium-sized enterprises; a computer and a mobile phone are mainly used for operation. The whole production process can be integrally controlled by utilizing the cloud platform system; departments serving as different roles are tightly connected; therefore, the functions of the departments canbe performed respectively; compared with the prior art in which different production departments are separated from each other, the system has the avantages that the whole production process is associated, so that the whole production process is clearer, and the system has originality in domestic similar products, is easy to popularize and apply, helps enterprises to quickly apply a cloud platform system, and realizes enterprise information digitization and transformation upgrading.
Owner:HUIZHOU INNOVATION RES INST FOR NEXT GENERATION IND INTERNET +1

Device transmitting magnetic resonance signal in MRI guided medical equipment

The invention relates to the magnetic resonance field, in particular to a device transmitting magnetic resonance signals in a medical facilitie guided by MRI, which is designed for resolving the problems as the obturation of receiving coil and difficulty of moving in the prior art. The invention comprises a medical facilitie, a MRI system and a HIFU device connected with the MRI system, which is characterized in that: the device also comprises induced coils arranged outside the medical facilitie. The invention, by connecting cables and the MRI system, receives the electromagnetic wave signals and then transmits ton the MRI system. The invention has the advantages of preventing the coil connecting and sealing with the cables in the medical facilitie, thus facilitating the free moving of the coils.
Owner:SIEMENS AG

Snow mountain detection method based on infrared remote sensing image

The invention discloses a snow mountain detection method based on an infrared remote sensing image, and belongs to the field of remote sensing image processing. The method includes the following steps: Step 1, reading an infrared remote sensing snow mountain image to be detected, and performing saliency feature detection to obtain a saliency image; Step 2, extracting a highlighted foreground partin the saliency image to obtain a highlighted foreground image; Step 3, extracting local entropy texture features in the highlighted foreground image to obtain a local entropy texture feature image; and Step 4, performing binarization processing on the local entropy texture feature image, filling holes and searching the outline of a target region to obtain a final detection result image. The snowmountain detection method based on an infrared remote sensing image solves the problem that an existing snow mountain detection method has a relatively high requirement for image quality, relatively large calculation data volume, is not beneficial to the real-time monitoring of the snow mountain, and has relatively high false detection probability.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA

Apparatus for on-site detection of holes in tube

The invention relates to an apparatus for on-site detection of holes in tube, which comprises a plurality of magnetism gathering rings annularly distributed on one cross section, a Hall element is provided on the magnetism gathering ring, each magnetism gathering ring is positioned between permanent magnets 1 and permanent magnets 2, each permanent magnet 1 is positioned on one cross section, each permanent magnet 2 is positioned on one cross section, the permanent magnet 1 and the permanent magnet 2 are opposite to a magnetic pole, the permanent magnet 1 and the permanent magnet 2 are connected to a pipeline to be detected through one side pole shoe, the permanent magnet 1 and the other side of the permanent magnet 2 are connected through lining iron, the permanent magnet 1, the permanent magnet 2, the pole shoe and the lining iron form a cavity, the magnetism gathering ring is connected to a soft wire. According to the invention, the detection sensitivity and signal to noise ratio are increased, the system reliability is increased, sensing structure is simple, the detection efficiency is obviously increased, and the on-site real-time detection can be better carried out.
Owner:SHAANXI JOIN CREATE SCI & TECH

Space-time adaptive processing method suitable for MIMO airborne-radar non-stationary clutter suppression

The invention discloses a space-time adaptive processing method suitable for MIMO airborne-radar non-stationary clutter suppression. In the method, a MIMO system radar is combined to form a virtual array and an antenna pitching dimension freedom degree, and a non-stationary clutter can be effectively suppressed. An emission antenna and a receiving antenna are arranged vertically so as to form a virtual plane array possessing orientation and a pitching freedom degree, and STAP is used to carry out clutter suppression. The method is characterized in that one uniform linear array which is placed horizontally and one uniform linear array which is placed vertically are used for emitting and receiving signals; each array element of the emission antenna emits an orthogonal signal, each array element of the receiving antenna carries out matching filtering processing, and receiving data after filtering is equivalent to vertical plane array receiving data; a typical STAP method is used to complete clutter suppression; and finally, CFAR detection is performed on processed data. By using the method, advantages of anti-radiation countering, anti-interference and the like of a MIMO system airborne radar are possessed, and effective suppression to the strong short-range non-stationary clutter can be realized. The method can be widely applied to an airborne early warning radar adopting a MIMO system and other phased array airborne PD radars.
Owner:AIR FORCE EARLY WARNING ACADEMY

Sheet extruding machine with melt pressure control system

The invention discloses a sheet extruding machine with a melt pressure control system. The sheet extruding machine comprises a machine body, a main engine, a metering pump, a filter screen and the melt pressure control system, wherein the main engine, the metering pump, the filter screen and the melt pressure control system are respectively arranged on the machine body. The sheet extruding machine is characterized in that the melt pressure control system comprises a pressure detection mechanism, a control device and a speed regulating mechanism, wherein the pressure detection mechanism is used for detecting at least one position melt pressure of the sheet extruding machine so as to send a pressure detection signal; the control device is used for receiving the pressure detection signal and process so as to send speed regulating control signals; the speed regulating mechanism is used for receiving at least one speed regulating control signal and controls the rotating speed of the corresponding drive motor. Compared with the prior art, the sheet extruding machine provided by the invention has the beneficial effects that the melt pressure control system is capable of detecting melt pressure in real time, the melt pressure is regulated and can keep the appropriate range all the time, thus the quality of a sheet manufactured by the sheet extruding machine is effectively guaranteed.
Owner:GUANGDONG DESIGNER MASCH CO LTD

Online detection method for performance of oil displacement foams

The invention relates to an online detection method for the performance of oil displacement foams. The method includes the following steps in order: conducting vacuum pumping of saturated water to a rock core, then placing the rock core into a rock core holder, testing the water phase permeability of the rock core, and recording the pressure change of a water flooding process; injecting gas and a foaming agent into the rock core according to a gas-liquid ratio, and recording the pressure change of a foam flooding process; calculating a foam resistance factor according to the pressure of the foam flooding process in a smooth state and the pressure of water flooding; conducting real-time observation of the foam state through a foam online collection chamber and a form online observation device, acquiring the foam image and performing processing to obtain foam performance parameters; and according to the comparison result of the foam resistance factor and foam performance parameters under different schemes, selecting reasonable injection parameters. The online detection method can truly simulate the foam generation process in oil reservoir, visually observe the condition of newly generated foams in the displacement process, and acquire the original foam data information, and reaches the purpose of real-time observation of the performance of foams generated in a porous medium.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)

Device and method for sensing object position

The invention discloses a device and a method for rapidly sensing an object position, in particular the device and the method for sensing the object position directly applied to various image systems.The invention mainly aims at carrying out image pick-up on an area in a direction to be sensed through the image system according to a user, and an image processing unit judges the position and relevant information of the object through selection of images of scene areas and an object recognition method. The method for processing image data comprises a step of converting two-dimension image datainto one-dimension signal information of a distance axle, and object recognition comprises steps of judging the position of the object by means of utilizing numerical value differential estimation tothe one-dimension signal information, and judging the approach state of the object to the difference of the one-dimension signal information of two adjacent images which are continuously input. The algorithm has small computation and favorable transportability.
Owner:AUTOMOTIVE RES & TESTING CENT

Herringbone gear centering degree on-line measurement and correction method

PendingCN112475475AImplement motion correctionFacilitates movement correctionMeasurement/indication equipmentsGear-cutting machinesGear wheelHerringbone gear
The invention discloses a herringbone gear centering degree on-line measurement and correction method, which comprises the steps of determining a herringbone gear machining tool movement path; determining relevant parameters of a herringbone tooth, including a helical angle and a tooth width; determining a herringbone gear space coordinate system, wherein the lower end face of the herringbone gearserves as a space coordinate system XOZ plane, and the reference axis of a gear shaft coincides with the Y axis; recording coordinates of a tooth profile on the X axis when a cutter moves to the middle position from the lower end face and moves by Y1 distances in the Y-axis direction; when the cutter moves to the middle position from the upper end face, adopting the x-coordinate of the intersection point of the cutter and the tooth profile as X2 when the moving distance of the cutter in the Y direction is Y1, and obtaining a tangential centering degree error; and correcting the herringbone gear through the cutter. According to the herringbone gear centering degree on-line measurement and correction method provided by the invention, the centering error in the tangential direction of the gear is measured according to the change of the motion component of the cutter in the machining process, and the real-time measurement of the centering error is realized; and the end face of an existinggear serves as a benchmark, so that errors generated when a middle plane serves as the benchmark are avoided.
Owner:NANJING UNIV OF TECH +1

Submarine cable armoring wire crevice corrosion test device and evaluation method

PendingCN110146435AEfficient evaluation of crevice corrosion susceptibilityEasy to installWeather/light/corrosion resistanceChinese charactersEngineering
The invention discloses a submarine cable armoring wire crevice corrosion test device and an evaluation method. At present, a device and method capable of reasonably reflecting the crevice corrosion risk of the metal armoring wires of submarine cables and providing quantitative evaluation are urgently needed. The device of the invention comprises a seawater medium experiment box and a crevice corrosion clamp; the crevice corrosion clamp is arranged in the seawater medium experiment box; the seawater medium experiment box is used as a container for containing a solution to simulate a seawater corrosion environment; the crevice corrosion clamp is used as a main body for wire crevice corrosion simulation and is used for clamping wires and adjusting an artificial crevice between two wires; thecrevice corrosion clamp is a supporting seat shaped like a Chinese character ''ao''; and two supporting limiting holes are formed in vertical plates at two sides of the crevice corrosion clamp on a coaxial straight line respectively. According to the device of the invention, the crevice corrosion clamp can be adjusted, so that the size of the crevice can be adjusted; tensile stress is applied toa sample; and therefore, the working condition of the armoring wires can be simulated.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +4

Method for detecting freshness of meat based on intelligent mobile phone

The invention discloses a method for detecting the freshness of meat based on an intelligent mobile phone. The method comprises the following steps: (1) calling a camera function of the intelligent mobile phone through an APP of the intelligent mobile phone, and selectively acquiring a certain area of full-color picture information of the section of a meat substance for multiple times; (2) reading values such as R, G and B of pixels in color pictures through the APP, culling the pixels where R+G+B is greater than or equal to 715 and R+G+B is less than or equal to 50 so as to remove black dots and high-white reflective pixel points from the pictures, and then statistically calculating a mean value of R, G and B of the rest of pixels in the pictures; (3) converting the values of R, G and B into an LAB color mode according to a formula of RGB-XYZ-LAB; (4) evaluating the quality of the meat according to values of L*, a* and b* of an LAB color space. According to the method disclosed by the invention, the freshness of the meat can be directly evaluated based on the APP technology of the intelligent mobile phone, and a result can be directly displayed in a display screen of the mobile phone; the method is quick, effective, simple and feasible.
Owner:NANCHANG UNIV

Air pressure blasting device used for simulating excavation with tunnel drill blasting method

The invention relates to an air pressure blasting device used for simulating evaluation with a tunnel drill blasting method. The air pressure blasting device comprises a self-boosting liquid nitrogen container, a control panel and two blasting-pipe modules, two SMC high-pressure pressure switches and a control module are arranged in the control panel, the control module is connected with the SMC high-pressure pressure switches respectively through a circuit to control opening and closing of the SMC high-pressure pressure switches, the air outlet of the self-boosting liquid nitrogen container is connected with the SMC high-pressure pressure switches respectively through a high-pressure hose, the SMC high-pressure pressure switches are respectively communicated with the blasting-pipe modules through the high-pressure hose, and air blasting holes are formed in the blasting-pipe modules. The air pressure blasting device has the advantages of simpleness in structure and convenience in use, construction procedure of evaluation with the tunnel drill blasting method can be accurately simulated, simpleness in operation is achieved, safety and reliability in tunnel simulation test process is guaranteed, and the air pressure blasting device can be widely used in similar simulation test of various small-equivalent tunnel blasting excavation.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Electromechanical integrated full-automatic pepper skin-seed separation and cleaning machine free of membrane damage and separation method

The invention discloses an electromechanical integrated full-automatic pepper skin-seed separation and cleaning machine free of membrane damage. The electromechanical integrated full-automatic pepperskin-seed separation and cleaning machine free of membrane damage comprises a machine frame, a skin-seed separation layer, a pepper skin collection layer and a water collection tank. A screen used forskin-seed separation is arranged in the middle of the skin-seed separation layer and connected with a skin-seed separation layer frame. The middle portions of the two sides of the skin-seed separation layer frame are electrically connected with a variable-frequency vibrating motor and a main control circuit, and supports are arranged on the two sides of the ends of the skin-seed separation layercorrespondingly and connected with the top end of the machine frame through elastic devices. The water collection tank is provided with a pipeline connected with the water inlet end of a centrifugal pump. The water outlet end of the centrifugal pump is connected with a spraying pipe. The spraying pipe sprays water to the screen through spraying holes in the bottom of the spraying pipe. The invention further discloses a separation method adopting the electromechanical integrated full-automatic pepper skin-seed separation and cleaning machine free of membrane damage. Compared with the prior art,by adoption of the technical scheme, the electromechanical integrated full-automatic pepper skin-seed separation and cleaning machine free of membrane damage and the separation method have the advantages that effective separation is achieved, water is fully utilized, the automatic degree is high, working is safe and reliable, and the application range is wide; and the technical purposes of effectively separating pepper skin from pepper seeds and sensing the appearance quality of pepper seeds can be achieved.
Owner:杨李益

Method for detecting tetracycline antibiotic residues in eggs based on SERS

The invention relates to the technical field of food detection, in particular to a method for detecting tetracycline antibiotic residues in eggs based on SERS (surface enhanced raman scattering). Themethod comprises the following steps: extracting an egg acetone extracting solution by using silver nano sol particles as an activity enhancing substrate and carrying out electrostatic enrichment andRaman spectrum detection to obtain an SERS spectrum; and carrying out comparison on working standard curve points with different concentrations of the acetone egg extracting solution without tetracyclines and an acetone extracting solution containing antibiotics, finding out a Raman optimal characteristic peak position as a quantitative peak. According to the invention, the method having advantages of simpleness and rapidness is easy to carry out real-time detection and carry out quantitative analysis and thus has the important significance in strict control of antibiotic pollution in food.
Owner:山东恒诚检测科技有限公司

Agricultural planting soil real-time detection system

The invention discloses an agricultural planting soil real-time detection system. The system comprises a base, a lifting box, a data processing module, a miniature optical spectrum instrument and a PC; the left side of the top end surface of the base is vertically provided with a threaded rod and a guide rod; the threaded rod penetrates through the upper side wall and lower side wall of the rightend of the lifting box and is rotationally sleeved with a first gear disc through an external thread; the left side of the top end surface of the lifting box is provided with a servo motor; the top end of a transmission shaft is fixedly sleeved with a second gear disc located at the inner cavity of the lifting box; the left side of the bottom end of the lifting box is fixedly provided with a detection sleeve; the bottom end of the outer wall of the detection sleeve is radially provided with a detection head; the signal input port of the miniature optical spectral instrument is connected with the detection head through a wire; the transmission shaft extends to a position below the detection sleeve and is connected with a spiral drill bit; the PC comprises a calculation processing module; and the calculation processing module is connected with the data processing module through a communication module. With the agricultural planting soil real-time detection system of the invention adopted, soil layers of different depths in a planting area are detected in real time, so that related technicians can be facilitated to judge soil quality conditions.
Owner:江苏叁拾叁信息技术有限公司

Laser point cloud three-dimensional target detection model and method for complex traffic scene

The invention discloses a laser point cloud three-dimensional target detection model and method for a complex traffic scene, a three-dimensional encoder in the model is beneficial to the detection of long-distance targets and small targets, and sparse convolution and sub-manifold convolution can greatly improve the coding efficiency of voxel features. The residual structure of the two-dimensional encoder can keep more complete information, detection of a long-distance target and a small target is facilitated, meanwhile, the network is easier to optimize, feature extraction and receptive field expansion can be carried out on an original scale and a self-calibration scale through self-calibration convolution, more complete and rich features can be extracted. Useful feature expression is enhanced in the space direction and the channel direction through space attention and channel attention, and useless information is inhibited. The final detection precision of vehicles is 81.88%, the final detection precision of pedestrians is 47.82%, the final detection precision of riders is 69.81%, the average precision is 66.25%, the average precision is 9.9% higher than that of an existing VOXEL RCNN algorithm, 13.8 FPS is achieved on RTX 2080Ti display, and the detection precision and speed can meet the sensing requirements of intelligent vehicles in complex traffic environments.
Owner:JIANGSU UNIV

Mixture for intrauterine device

InactiveCN101864103AWell mixedObvious developmentIntrauterine deviceBarium sulfate
The invention relates to a mixture for an intrauterine device, belonging to the technical field of intrauterine devices. The mixture for an intrauterine device is characterized in that the mixture comprises polyethylene and barium sulfate, wherein the weight percentages of the polyethylene and the barium sulfate are respectively 76-80% and 20-24%. The invention has the advantages of simple processing, stable process, precise control, high barium sulfate content, good product quality, convenient real-time detection, distinct development and the like.
Owner:天津市医疗器械厂有限公司

Conductive polymer microneedle electrode used for biomolecular detection and preparation method thereof

The invention relates to a conductive polymer microneedle electrode used for biomolecular detection and a preparation method thereof. The conductive polymer microneedle electrode is an electrode- microneedle integrated electrode product, and consists of a polymer solid microneedle, an inert metal layer and a conductive polymer film fixing bioactive molecules. The conductive polymer film can be deposited on the polymer microneedle in an electrochemistry manner, and the collection of bioelectrical signals can be realized by using the microneedle to pierce the skin, so that the conductive polymermicroneedle electrode can have characteristics of efficient and painless. Bioactive components can be fixed in the conductive polymer film, so that specific recognition can be performed on to-be-detected biomolecules, and electrical signal sensitivity can be greatly enhanced. The conductive polymer microneedle electrode is simple in preparation technology and low in price; and conductive polymershave good biocompatibility and are insoluble in body after being pierced in the skin, and real-time detection and longtime continuous monitoring of the biomolecules can be realized.
Owner:BEIJING UNIV OF CHEM TECH

Intelligent household air purification device

The invention discloses an intelligent household air purification device and relates to the technical field of intelligent household appliances. Walking wheels are installed at the two ends of the bottom of a shell. A filter net mechanism is installed at the front end inside the shell. An air suction motor is installed on the right side of the filter net mechanism. A primary filter piece is installed on the right side of the air suction motor. An activated carbon adsorption frame is installed on the right side of the primary filter piece. A heating piece is installed on the right side of the activated carbon adsorption frame. A secondary filter piece is installed on the right side of the heating piece. A diffusion shell is installed at the right end of the shell. An atomizer is installed at the upper end of the shell. A rotary atomizer head is installed on the atomizer. A temperature detection sensor, a humidity detection sensor and a light brightness detection sensor are installed at the upper end of a shell of the atomizer. The intelligent household air purification device can achieve real-time detection conveniently, is easy and convenient to operate, saves time, is high in working efficiency and achieves intelligent control.
Owner:ZHENGZHOU DANDIAN TECH SOFTWARE

Anesthesia machine and reminding device for same

The invention discloses an anesthesia machine and a reminding device for the same. The anesthesia machine comprises an anesthesia machine body, a breathing circuit is mounted on one side of the anesthesia machine body, a breathing machine is mounted at the top of the breathing circuit, a CO absorbing tank is mounted at the bottom of the breathing circuit, a control panel and an anesthetic vaporizer are mounted on the anesthesia machine body, a plurality of indication lamps are mounted on one side of the control panel, a flow meter is mounted on one side of the anesthetic vaporizer, a display screen is mounted on the control panel, a controller is mounted in the control panel, a radiator is mounted on one side of the controller, a storage battery is mounted on the other side of the controller, an alarm is mounted on one side of the storage battery, a plurality of high-pressure air bottles are mounted in the anesthesia machine body and connected with an air conveying bottle through air pipes, and a pressure reducer is mounted on the air conveying bottle. The anesthesia machine is simple to use and convenient to install.
Owner:闫玉荣
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