53results about How to "Good detection" patented technology

Methods and devices for improved chemical and biomass detection assays combined well defined microstructures having independently addressable electrodes with various surface immobilization electrochemical assays. Combining known chemical detection immobilization assays, electrochemically active moieties with microstructures having independently addressable electrodes provides for vastly improved methods of detecting microorganisms, chemical compounds, and measuring membrane transport.

An apparatus, method and computer program product for performing computer aided diagnosis on temporal subtraction images of objects. A mode of a gray-level histogram is identified, and a gray-level threshold is established at a predefined fraction of this modal value. All pixels with gray levels below this threshold that lie within the lung regions of the temporal subtraction image remain “on,” while all other pixels are set to zero. Area and circularity requirements are imposed to eliminate false-positive regions. Areas of pathologic change identified in this manner may be presented as outlines in the subtraction image or as highlighted regions in the original radiographic image so that, in effect, temporal subtraction becomes a “background” process for computer-aided diagnosis. The present invention is also directed to method, apparatus, and computer program product for performing temporal subtraction on energy subtraction images, with or without subsequent computer aided diagnosis, of objects.

The invention discloses an overhead rail type firefighting inspection robot system. The overhead rail type firefighting inspection robot system comprises an overhead rail part, overhead rail type firefighting inspection robots, fire extinction equipment, a position identification block, a charging position, a remote control center and wireless signal transmission equipment. Each overhead rail type firefighting inspection robot comprises a traveling part, a lifting vision device, a position detection device, a detector, a fire extinction control device and a control and communication device. The robots move on a rail of the overhead rail part. The position detection devices conduct positioning by identifying the position identification block. The robots can be charged at the charging position. The fire extinction control devices operate the fire extinction equipment. The control and communication devices achieve communication of the robots and the remote control center through the wireless signal transmission equipment. The robots of the overhead rail type firefighting inspection robot system can conduct inspection detection along the rail, find out equipment failures and potential safety hazards and can conduct fire extinction operation in time.

The invention relates to an insulation aging diagnostic system and method based on a 10kV XLPE cable. The system comprises a water tree 10kV XLPE cable, a direct-current power supply, a high-voltage pulse power supply and a data collecting and processing unit. The method includes the steps that firstly, a negative direct-current voltage Vdc is exerted on the water tree 10kV XLPE cable; secondly, the high-voltage side of the cable is grounded, and trapped charges become residual charges in the grounding discharging process; thirdly, a high-voltage pulse voltage is exerted on the water tree 10kV XLPE cable, and voltage direct-current component signals on a resistor R are collected through the data collecting and processing unit, the time integral operation is performed, and the residual charge quality is obtained; fourthly, the water tree aging degree of the cable is judged according to the residual charge quantity. The insulation aging diagnostic system and method can well detect the water tree aging degree and is obvious in detection effect and capable of effectively preventing insulating accidents.

A method for identifying membrane contours in images of biological cells is described and comprises the following steps:

• detection of a substructure of a biological cell, where the substructure serves to localize the biological cell in the image,
• detection of a plurality of landmarks taking account of the spatial position of the substructure,
• determination of line segments between pairs of spatially adjacent landmarks,

and combining the line segments to a membrane contour.

In particular, physical/biological information concerning cell membrane stabilization is used as a basis for determining the line segments.

Techniques for sensing data states of respective memory cells in a memory array are provided, the memory array including at least a first bit line coupled to at least a subset of the memory cells. In one aspect, a circuit for sensing data states of respective memory cells in the memory array includes at least one sense amplifier coupled to the first bit line. The sense amplifier includes a first transistor operative to selectively inhibit charging of the first bit line in a manner which is independent of a voltage level on a second bit line coupled to the sense amplifier.

A method for monitoring deformations in a tire of a vehicle wheel, the wheel including the tire and a rim, the method including: providing the wheel with at least two magnetic-field emitters mutually disposed so as to yield a composite magnetic field having one or more space portions where at least one component of the composite magnetic field is substantially null; disposing at least one main magnetic-field sensor substantially in one of the one or more space portions; monitoring variation of the at least one component of the composite magnetic field; and correlating the variation with tire deformations. At least one of the magnetic-field emitters is disposed in contact with the tire. A system for monitoring deformations in a tire of a vehicle wheel includes the wheel, the at least two magnetic-field emitters, and the at least one main magnetic-field sensor.

The invention provides a multisectional infrared-band gas detection apparatus and method, belonging to the technical field of optical detection of gas. In the prior art, detection of different gases needs different infrared sensors, which leads to high cost of apparatuses, inconvenience of usage and limited varieties of gases for detection. The multisectional infrared-band gas detection apparatus employs a plurality of bandpass filters and an empty window; the bandpass filters and the empty window are distributed on the periphery of a rotating disk at an equal angle; all the bandpass filters have equal pass bands which are successively distributed in the infrared band; the rotating disk carries out stepped rotation, and the plurality of bandpass filters successively pass a position located between an infrared lens and an infrared photoelectric device; the infrared photoelectric device sequentially transmits a plurality of detection pulses to a signal integration circuit for packing so as to obtain an infrared radiation sequence of to-be-detected gases; the infrared radiation sequence is transmitted to an analysis and processing unit for determination of the varieties of the to-be-detected gases according to the characteristic radiation sequence databases of a variety of gases; and a displaying and alarming unit carries out displaying and alarming.

A device for real-time analysis of airborne chemical, biological and explosive substances has at least a gas analysis sensor, a fluorescence/luminescence sensor and a sensor for determining the particle size and number of particles. Each of the sensors is connected to a multireflection cell (multipass laser cell) as an open measurement path. In addition, the device also includes an evaluation unit for the real-time analysis of chemical, biological and explosive substances.

Provided is an engagement position storage device capable of detecting a clutch engagement position of a vehicle finely and a brake system including such a device. In an engagement position storage device 2b that stores an engagement position of a clutch to engage and disengage power of a vehicle, when the vehicle becomes a traveling state in predetermined duration after acceleration in a front-back direction of the vehicle changes, the engagement position storage device 2b stores a clutch engagement position based on a clutch position detected when the acceleration changes. A brake system 1 includes a wheel latching mechanism 5 that latches wheels of a vehicle by driving a propelling member 5a by driving devices 3 and 4; and a controller 2 that controls driving of the propelling member 5a of the wheel latching mechanism 5 based on a clutch engagement position stored in the engagement position storage device 2b.

The invention discloses a constructional engineering steel bar strength detection device. The constructional engineering steel bar strength detection device comprises a detection frame, and a replacement device is arranged at the bottom of the detection frame. With the replacement device, people can quickly replace a clamping device matched with the reinforcing steel bar according to the diameterof the reinforcing steel bar, and the applicability and the practicability of the reinforcing steel bar strength detection device are improved; with an angle monitoring device, people can observe thebending angle of the steel bar in real time; with a transmission device, the reinforcing steel bars can be kept still in any bending angle state, it is ensured that people can detect the bending strength of the steel bar at different bending angles, and the applicability and the practicability of the reinforcing steel bar strength detection device are further improved; through the cooperation of adriving device, the transmission device and a pressure applying device, people can apply bending force on the reinforcing steel bar by of the own gravity, the operation process is simple, convenient,time-saving and labor-saving, the detection work is easier, the practicability of the reinforcing steel bar strength detection device is further improved, and the practicability is remarkably improved.

The invention provides a railway transportation steel coil cargo state monitoring device which is mounted on the compartment of a train and detecting the cargo in the compartment. The device comprisesrail systems and a deviation detecting system. The rail systems are mounted at two sides in the compartment. The left side of the compartment is provided with two sliding tracks, namely a first sliding track and a second sliding track. The first sliding track is provided with at least one first electric slide block. The second sliding track is provided with at least one second movable slide block. The offset detecting system comprises a laser transmitter and a laser receiver. The second movable slide block is provided with the laser transmitter. Compared with prior art, the railway transportation steel coil cargo state monitoring device has advantages of realizing high effect in detecting cargo deviation, and preventing damages such as non-uniform track force-bearing and train body overthrowing caused by cargo deviation.

The invention provides a device and method for detecting sticking compactness of a steel plate. The device comprises a plurality of transmitting transducers used for transmitting ultrasonic waves, a plurality of receiving transducers used for receiving ultrasonic waves, a scanning device and a data processing system, wherein the transmitting transducers, the receiving transducers and the data processing system are sequentially connected, the scanning device is connected with the data processing system in parallel, and the data processing system comprises an amplifier used for amplifying signals received by the receiving transducers and an oscilloscope used for graphic display of data. By the adoption of the device and method, components are not damaged, detection is reliable, work load is small, working efficiency is high, and vacancy degree can be detected qualitatively and quantitatively.

A log analysis apparatus (10) extracts a parameter from an access log pertaining to a request issued from a user terminal to a server, learns the appearance frequency of the parameter, and stores the learning result in a profile storage unit (14a) as a profile. The log analysis apparatus (10) extracts a parameter from an access log under analysis, acquires a similarity by comparing the parameter with the parameter included in the profile stored in the profile storage unit (14a), and determines an access in the access log under analysis as an attack when the similarity is lower than a threshold. The log analysis apparatus (10) takes a tally of the number of different requesting user terminals, for each parameter, among the access logs under analysis including a parameter not found in the profile, or having a similarity lower than the threshold, and determines, when there is any parameter for which the number of such different user terminals is equal to or higher than a threshold, to re-learn the parameter.

A watermark signal provider comprises a time-frequency-domain waveform provider to provide time-domain waveforms for a plurality of frequency subbands. The time-frequency-domain waveform provider is configured to map a given value of a time-frequency-domain representation onto a bit shaping function, a temporal extension of which is longer than a bit interval, such that there is a temporal overlap between bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation of the same frequency subband. A time-domain waveform of a given frequency subband contains a plurality of bit shaped functions provided for temporally subsequent values of the time-frequency-domain representation. The water mark signal provider further has a time-domain waveform combiner.

The invention discloses a cleaning and disinfecting device for a blood plasma detection test tube and relates to the technical field of medicine. The cleaning and disinfecting device for the blood test tube comprises a bottom plate and a support plate. A box body is fixedly connected to the top of the bottom plate. A disinfecting water tank is fixedly connected to the top of the bottom plate and located on one side of the box body. A pulley is arranged inside the box body and fixedly connected to one side of the support plate. A rectangular frame is fixedly connected to the bottom of the support plate and positioned outside the box body. A first motor is fixedly connected to the bottom of one side of the inner wall of the rectangular frame. A first gear sleeves one end of an output shaft of the first motor. The cleaning and disinfecting device for the blood test tube can realize rapid and effective cleaning and disinfecting of the inner wall of the test tube and effectively remove allbacteria stored in the inner wall of the test tube, saves time and labor, improves the cleaning and disinfecting work efficiency, creates good conditions for blood test work, and brings a lot of convenience to workers.

The invention discloses a polarization spectral imaging system based on four-phase modulation. The polarization spectral imaging system is composed of a front telescopic system and a spectral polarization imaging system. After entering a slit through the front telescopic system, a light beam passes through a catadioptric lens, reaches an immersion grating for dispersion, then is reflected to the catadioptric lens, reaches a phase modulator, and reaches an area array detector after passing through the phase modulator. The phase modulator is formed by arranging four phase modulators in different directions in an array on the same plane, and the four phase modulators are respectively 0 degree, 45 degrees, 90 degrees and 135 degrees. The polarization spectral imaging system based on four-phase modulation can simultaneously acquire polarization, spectrum, space and other multivariate information of a measured target, does not have any mechanical moving part, effectively improves the target identification degree under a complex background, is compact in structure, and is suitable for space technology application.

A control device and a method for triggering a passenger protection arrangement for a vehicle are provided, at least two acceleration signals being provided by at least two acceleration sensors oriented in different spatial directions. The orientations are angled in relation to a coordinate system oriented toward the vehicle longitudinal direction. The at least two acceleration signals are transformed on at least two axes of the coordinate system. The triggering signal is generated as a function of the comparison of the at least two acceleration signals and the transformed acceleration signals. The passenger protection arrangement is triggered as a function of the triggering signal.

A method for determining the position of one of two components in relative motion with respect to each other, using optical means, comprises: directing at least one light beam emitted by a light source attached to one component towards a diffractive support attached to the second component, calculated and manufactured for generating an optical signal indicative of the positioning of said support, the optical signal being produced by the diffractive support in transmission and/or in reflection; detecting and reading at least one optical code formed by said signal, which corresponds to a unique position of the diffractive support relatively to the beam; and assigning a position to each detected optical code.

A system for navigating an aircraft in a hangar, having at least one optical sensor firmly connected to the aircraft, wherein the sensor can be used to continuously capture surroundings contour data relative to the aircraft, and having a data processing apparatus, connected to the sensor, that has a data memory storing reference data, wherein the data processing apparatus can be used to detect an aircraft collision risk by continuously matching captured surroundings contour data with the reference data. Also, methods of navigating an aircraft in a hangar.

The invention provides a dust detection device for an environmental protection engineering. The dust detection device comprises a base, a shell is fixedly connected to the top of the base, and a partition plate is fixedly connected between the top and the bottom of the inner wall of the shell. A fixing plate is fixedly connected between one side of the inner wall of the shell and one side of the partition plate, and a dust detector is arranged at one side of the top of the fixing plate. According to the present invention, a through pipe at one side of an upper movable box can be blocked, so that a gas with dust is prevented from entering the dust detector; and a through pipe at one side of a lower movable box also can be dredged, so that the gas with dust enters a filter box conveniently to be filtered and finally enters a water tank; the dust in gas can be fully taken out through a water source in the water tank, so that the environmental quality is improved, the dust can be conveniently and well detected, a good dust treatment function is achieved, and the functionality and comprehensiveness of the dust detection device are greatly improved.

A fiber instrument for measuring properties of a fiber sample, the fiber instrument having a surface for receiving the fiber sample, a hand for pressing the fiber sample against the surface, an illumination source for selectively illuminating the fiber sample with more than one peak wavelength, where each of the peak wavelengths is independently controllable as to an applied intensity of the peak wavelength, a sensor for capturing images of the fiber sample while it is illuminated, and a controller for controlling at least the sensor and the illumination source. By providing multiple peak wavelengths of illumination that are each independently controllable as to illumination intensity, the fiber instrument as described herein is better able to detect both foreign material within the fiber sample, and color gradations of the fiber sample.

A headlamp assembly for a motor vehicle comprising at least one headlamp, which has a light source for emitting visible light, a radiation source for emitting infrared radiation, and a light emission optics with a light entry surface, which visible light from the light source and infrared radiation from the radiation source strikes, and which has an optical exit-deflection element, which directs the infrared radiation from the radiation source toward the light entry surface of the light emission optics. The optical exit-deflection element comprises at least one optics, which broadens the infrared radiation emitted by the radiation source to form a radiation beam with a cross section broadened in a horizontal plane (HH), and a radiation distribution that has at least one intensity maximum disposed toward the edge in the radiation distribution, to one side of a vertical plane (VV), when viewed in a focal plane of the light emission optics.

The invention relates to a fast detection device for automobile headlights, which comprises an operating platform (1), and is characterized in that a simulation block I (2), a simulation block II (3),a simulation block III (4), a simulation block IV (51) and a simulation block V (61) form a product shape detection port; a turnover mechanism I (5) is further provided with a detection pin block II(9), detection pin blocks I (7) and the detection pin block II (9) are provided with a detection pin hole, and a detection pin (8) is movably connected in each detection pin hole; a workpiece is placed in the detection port, loading hole site and hole diameter detection is performed through the detection pins (8), and the clearance plane difference and the profile tolerance are checked by using adetection tool. According to the invention, the detection is simple, the detection work for special-shaped headlights is facilitated, positioning can be accurately performed on lamps, the detection precision and the work efficiency are improved, and the service life is prolonged.

The invention relates to a multifunctional portable ergometer which is only a few kilograms in weight and can be carried about and used as a tool. The ergometer can perform strength detection on materials and articles on site and perform measuring accuracy detection and standard force exertion on a measuring apparatus. The ergometer is mainly formed by assembly of a gantry support, a spiral jack, a standard area force exertion plate, a high-precision sensor, a display instrument, a micro printer, batteries and other parts by adoption of a proper mechanical structure means.

The invention discloses a novel portable detection device for an automobile instrument, and the device comprises a box body; the interior of the box body is provided with a supporting rod and a placement assembly, one side of the supporting rod is fixedly provided with a clamping block, the other side of the supporting rod is provided with a limiting assembly, and the supporting rod is correspondingly connected with the inner wall of the box body in a clamped manner through the clamping block and the limiting assembly. And the outer surface of the supporting rod is sleeved with a moving block,a camera is fixedly installed at the bottom of the moving block, two supports are rotatably connected to the bottom of the placing assembly through a rotating shaft, an adjusting assembly is rotatably connected between the two supports through a rotating shaft, and a control panel is fixedly installed on the inner side wall of the box body. Through cooperation of the supporting rod, the clampingblock, the clamping groove, the limiting assembly and the like, rapid mounting and dismounting of the camera can be achieved, meanwhile, the horizontal position of the camera can be adjusted, an automobile instrument can be better detected, and convenience is provided for later maintenance and replacement of the camera.

The invention relates to the field of the Internet of Things, and particularly discloses an old people monitoring method and system of an intelligent closestool based on the Internet of Things and electronic equipment. According to the invention, a convolutional neural network model based on a deep learning technology is adopted to mine relevance characteristics among various detection data of different old people, so that the physical conditions of the old people are detected based on the relevance characteristics among the detection data of the old people; and in addition, in the process, a converter model is further adopted to encode the associated features of recessive expressions among various detection data of different old people so as to obtain dominant expressions of the associated features. By adopting such a manner, the precision and accuracy of classification can be high, so that the physical condition of the old people can be better detected.