263results about How to "Continuous detection" patented technology

The invention discloses an intelligent detection device of defects of a mobile phone outer shell based on machine vision. The device comprises a transmitting device, detection systems, a degraded product unit and a computer; the transmitting device comprises two transmitting strips and a diversion air cylinder; each detection system respectively detects the frontage side, the left side, the rightside, the front side and the rear side of the mobile phone outer shell; each detection system comprises an illumination unit and an image collecting unit; the illumination unit illuminates one side of the outer shell of the mobile phone, and the image collecting unit photographs; collected image signals are transmitted to the computer; the computer recognizes the degraded mobile outer shell, and transmits the serial numbers of the mobile outer shell with defects to a degraded product rejecting unit; and the degraded product rejecting unit rejects the mobile phone outer shell with defects. According to the invention, defects such as scratches, burr, discoloration, dent, bubbles of the mobile phone outer shell can be detected, the degraded products are separated automatically, and the device has the characteristics of intelligence, high efficiency, stability and high accuracy.

When utilized in a flow imaging instrument, calibration beads provide a known data source that can be employed in various self-diagnostic, calibration and quality metric applications for the both the optical system of the flow imaging instrument, as well as the flow cell of the flow imaging instrument. Such data can be used to determine point spread functions associated with an imaging system, to determine a sensitivity of an imaging system, and to determine a focal point of the imaging system. Imagery collected from calibration beads can be used to determine core size and stability and TDI/flow speed synchronization. Calibration beads can be beneficially employed to enable stable system operation, even when very low sample concentration, or very small sample sizes are to be analyzed.

The invention provides an exercise monitoring and management system applied to diabetes rehabilitation, which is capable of obtaining physiological parameters and environmental parameters of a diabetic in an exercise process in real time and carrying out real-time processing and feedback on the data. The exercise monitoring and management system comprises front-end monitoring equipment used for obtaining the physiological parameters and the environmental parameters of the diabetic in the exercise process in real time, and then uploading the data to a mobile phone client through a Bluetooth module with low power consumption, wherein the mobile phone client is capable of locally storing and initially processing the data, displaying a result on an interactive interface and transmitting the monitoring information to a remote health management system in real time through a mobile communication network; the health management system is capable of comprehensively analyzing based on an exercise management theory of the diabetes and feeding an analysis result back to a doctor and a patient, so that danger caused by the excessive exercise during exercise is avoided, and the exercise rehabilitation condition of the patient can be conveniently monitored and counted for a long time.

The invention discloses a fundamental wave and harmonic wave detecting method based on five Rife-Vincent (I) windows doublet interpolation FFT (fast Fourier transform): detected signals are processed with analog-to-digital conversion and low-pass filtering, the five Rife-Vincent (I) windows which adopt a low sidelobe level and a rapid decay rate of the sidelobe carry out window-adding FFT operation on the detected signals, and the doublet interpolation calculating method is used for detecting the quantity of the fundamental wave and each harmonic wave of the detected signals. The fundamental wave and harmonic wave detecting method includes the following aspects: (1) analog-to-digital conversion and digital low-pass filtering; (2) FFT calculation based on the five Rife-Vincent (I) windows; (3) the doublet interpolation and the fitting of polynomial to obtain the parameter of the fundamental wave and the harmonic wave.

What is described are a signal detecting device for detecting a vital parameter of a living being, having a plurality of electrodes and an electrode selecting device for selecting a pair of electrodes from the plurality of electrodes such that a difference signal suitable for measuring the vital parameter is derivable, an electrode arrangement and a method.

Fuel reforming catalysts 28 generate a hydrogen-containing reformed gas when they come into contact with exhaust gas that contains a reforming fuel. Upstream and downstream air-fuel ratio sensors 58, 60 are respectively installed upstream and downstream of the fuel reforming catalysts 28. The upstream air-fuel ratio sensor 58 outputs a upstream sensor signal in accordance with oxygen concentration. The downstream air-fuel ratio sensor 60 outputs a downstream sensor signal in accordance with oxygen concentration and hydrogen concentration by using zirconia's oxygen detection capability and a change of a diffusion layer's hydrogen-concentration-dependent oxygen detection capability. An ECU 50 detects the hydrogen concentration without being affected by the oxygen concentration through the use of the upstream sensor signal in which only the oxygen concentration is reflected and the downstream sensor signal in which the oxygen concentration and hydrogen concentration are reflected. This makes it possible to establish a hydrogen concentration detection system with the common air-fuel ratio sensors 58, 60.

A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data.

The invention belongs to the technical field of vehicle-mounted monitoring and discloses a vehicle-mounted air quality monitoring device and method. The vehicle-mounted air quality monitoring device and method solve the problem that an existing monitoring device for air inside a vehicle can not carry out detection persistently easily. The vehicle-mounted air quality monitoring device comprises a main control system, wherein the main control system is connected with a sensor module, a data analysis module and a storage module; the data analysis module is connected with the storage module; the main control system is connected with a vehicle-mounted control system, an alarm module and a wireless transmission module; the wireless transmission module is in communication connection with a cloud server and an intelligent terminal; the cloud server is in communication connection with a data statistical analysis and sharing system and the intelligent terminal. The invention further provides the method for monitoring the air quality inside the vehicle by the adoption of the vehicle-mounted air quality monitoring device. The vehicle-mounted air quality monitoring device is simple in structure and low in manufacturing cost and can persistently and effectively detect the air inside the vehicle in a high-precision mode.

The invention discloses a short tube flexible gear harmonic reducer of a rigid wheel tooth dip angle and a transmission rigidity testing device thereof, and relates to the technical field of harmonic reducers. According to the invention, the deflection of the flexible wheel gear teeth is caused by the reduction of the axial size of the short tube flexible gear harmonic reducer, so as to realize the reduction of the surface area between the rigid wheel gear teeth and the flexible wheel gear teeth, and to realize the lowering of the transmission rigidity; the problem of complicated operating process of the existing harmonic drive rigidity experiment testing device is solved; and the length diameter ratio of a soft wheel is 1/4 to 3/5 of a short tube wheel, the inner wheel of the rigid wheel with a dip angle is the wheel teeth with the dip angle alpha along the rigid wheel axial direction, and the deflection direction and the field angle direction of the soft wheel on a long shaft are coincident. The transmission rigidity testing device of the short tube flexible gear harmonic reducer implements current control namely torque control through a computer and a servo driver, and the harmonic drive output end realizes continuous loading unloading; and the harmonic drive rigidity of the short tube soft wheel is obtained, and the transmission rigidity is serially, rapidly accurately obtained.

The invention relates to a device for using ultrasonic wave to detect the manufacture defect of objects, in particular to a steel cylinder ultrasonic flaw-detecting machine which can also be used for the flaw detection of a steel tube; the device of the invention comprises an electrical control device, a front feeding device, a rear material-moving device, a steel cylinder conveying mechanism, a flaw detection host, a flaw detector, a mark printing mechanism and a water circulation system, wherein, at least three flaw detection hosts are arranged on the steel cylinder conveying mechanism, a driving device of the flaw detection host drives the detected steel cylinder to forward in a screw mode and coupling agents are filled between a probe and the detected steel cylinder. As the flaw detection is carried out by a mode of immerging the ultrasonic probe and the detected steel cylinder into the coupling agent, the flaw-detecting machine of the invention saves the procedures of plugging the mouth of the cylinder and pulling out the stopper, can carry out detection to the steel cylinder continuously and stably, improve the detection efficiency effectively and realize the automatic ultrasonic detection.

The invention provides a digital amplitude-integrated cerebral function monitor (CFM). The CFM comprises a signal acquisition system, a signal amplification system and a signal processing system, and signals are acquired by the signal acquisition system, amplified by the signal amplification system and further processed by the signal processing system, thereby obtaining an amplitude-integrated electroencephalogram (aEEG), wherein, the signal acquisition system is a single-lead or double-lead system; the signal amplification system comprises an isolation amplifier and a main amplifier; and the signal processing system comprises a CFM filter module, an amplitude-squeezing module and a peak detecting and smoothing module. The digital amplitude-integrated CFM provided by the invention has the advantages of low environmental requirements and high anti-interference and anti-drifting performance, and can achieve the continuous bedside detection on a real-time basis for a long time and reflect the changes in the cerebral function of patients on a timely basis.

The invention discloses an apparatus and a method for detecting harmonic current. Voltage and current signals measured by a sensor enters a sampling maintaining A/D converting circuit through an anti-aliasing filtering circuit; a lock phase loop synchronization pulse generating circuit provides a conversion signal for the sampling maintaining A/D converting circuit; a digital signal processor uses an LMS/LMF self-adaptive harmonic current detection algorithm to detect a harmonic current value in load current; a keyboard circuit and a colorful liquid crystal display realize a man-machine conversation; and a ferroelectric storage stores data. The invention uses the improved LMS/LMF algorithm to update weight and uses the self-correlation estimation of the normalized prior error signal and the last error signal during a step-size iteration, thereby effectively avoiding the influence caused by a lower signal-to-noise ratio and obtaining the better stable effect. The invention uses a TMS320F2812 chip to realize on the specific algorithm; a DSP program is easy to operate to continuously detect signals to be detected for a long time; and the hardware circuit of the whole apparatus is simple, small and convenient to carry and store data.

A miniature pump has at least one controllable expansion-and-contraction chamber, and associated pair of tiny ducts interconnecting a fluid source and destination. The ducts communicate with the chamber(s); an linking tunnel links the ducts. Valves interact with fluid pressures due to expansion and contraction, imposing directionality on flow in the ducts and tunnel. Preferences: making the valve a passive flapper, implanting the pump in a creature, making the source a medication reservoir for supplying the creature; making the source a fuel tank and destination a tiny engine; making the source provide a specimen for assay and destination an observation slide; human or automatic examination of the slide under a microscope (e. g. electron microscope); making the source a reagent and destination a process stream; making the source a colorant and destination a colorant application system. Preferably included is an optical channel with intersecting fluid duct for optically monitoring pumped fluid.

The invention relates to a check device, especially providing a check bus arranged in Gray code method as Gray bus, and the method for detecting its signal. The invention comprises a cable sheath, a cable core and a mode core. Wherein, said core comprises at least two couples of core, while one couple is two parallel standard lines, and others are the address lines that crossed in each step; the step of each couple address lines are different, as 2i times of minimum step, while i=0, 1, 2, etc. Said Gray bus and the antenna are communicated via the electromagnetic couple, while detecting the position of antenna at the length direction of Gray bus. The invention uses the electromagnetic couple between the antenna and the Gray bus to transmit information, to realize non-contact position detecting, absolute position detecting with high anti-disturb ability.

A method and device for the detection and monitoring of the contamination of an optical component in a device for laser material processing, which emits a process laser beam through or onto the optical component. A measurement beam emitted by a light source is projected under an angle of incidence onto an optical surface of the optical component. The beam reflected from the outer surface of the protective window under the angle of reflection corresponding to the angle of incidence is conducted through an aperture stop onto a first light-sensitive detector so as to record the intensity of the reflected beam. The intensity of the scattered radiation, scattered diffusely from the optical surface of the component under a scattering angle, is recorded by a second light-sensitive detector. The degree of the contamination of the component is determined from the recorded intensities of the reflected beam and the scattered radiation.

The invention discloses a complete and high-resolution test method for the motion characteristics of particles in turbid media. The method comprises the following steps of: performing continuous, complete and real-time detection on the motion characteristics of the particles in the process of 'solution-colloid-sediment' of the turbid media by combining the resolution relation between the characteristic value of a speckle pattern and particle motion and utilizing a dynamic speckle test light path according to the particle light scattering theory; simultaneously, performing transient study on different critical points of the particle motion in the process by using a femtosecond laser test light path to perform the analysis of high spatial and temporal resolution on transient dynamics of the particles in the turbid media; and combining the two steps to realize the complete test with high spatial and temporal resolution characteristic on motion images of the particles in the process of 'solution-colloid-sediment' of the turbid media finally. The method is a non-contact, high-accuracy and real-time online detection method, has the characteristics that the operation is simple and the application range is wide, and can be widely used in the fields of medical science, pharmacy, chemical production and the like.