168results about How to "Interference will not" patented technology

Devices related to a near-drowning behavior detection method fusing UWB indoor location with a video target detection and tracking technology comprise a smart bracelet module, an intelligent monitoring information processing module, a communication module and a display alarm module, the smart bracelet module is used for performing indoor location, the intelligent monitoring information processingmodule is used for processing video data acquired by an intelligent monitoring camera, location information of a smart bracelet and water depth information; and the communication module is used for realizing information transfer among the smart bracelet module, the intelligent monitoring information processing module and the display alarm module. Specific detection steps of the near-drowning behavior detection method are performed according to the following way: performing system initialization; and building a relationship among an image of the intelligent monitoring camera, location of the smart bracelet module and a swimming pool coordinate system, then setting near-drowning conditions, and performing near-drowning determination by virtue of a near-drowning detection algorithm. The near-drowning behavior detection method is simple in main body structure, smart in design concept, good in using effect, high in detection accuracy, low in maintenance cost, friendly in application environment and broad in market prospect.

The invention provides a method for detecting a disturbance state of a driver by utilizing a driver model. The method comprises the following steps: obtaining driving environment information of an automobile by an external sensor and judging a driving intention according to a ration between the position of the automobile and a lane boundary; when the driving intention is to keep the lane, calculating a change volume of a turning angle of a steering wheel by the driver model according to the driving environment information and the automobile state information and calculating and outputting an opening degree of an accelerator according to the present automobile speed and an expected longitudinal acceleration confirmed by a time interval between the automobile and the front automobile; when the driving intention is to change the lane, calculating the change volume of the turning angle of the steering wheel by the driver model according to the driving environment information and the state information and calculating and outputting the opening degree of the accelerator according to the present automobile speed and the expected longitudinal acceleration calculated on the basis of a lateral acceleration; comparing the turning angle of the steering wheel and the opening degree of the accelerator calculated by the driver model with a practical control data of the driver obtained by an internal sensor and judging if the driver is disturbed; and repeating the steps till stopping.

The invention relates to a method and a device for transforming electric analog signals; wherein the method comprises the following steps: transforming the electric analog signals output by a real-time digital simulation device into electric digital signals; processing the electric digital signals to generate standard digital signals meeting communication standards of a transformer substation; processing the standard digital signals meeting the communication standards of the transformer substation to generate sampling value messages meeting the communication standards of the transformer substation; transmitting the sampling value messages meeting the communication standards of the transformer substation to a digital relay protection device to be detected. The electric analog signal transformation device of the invention can be employed to enable the RTDS to detect the digital relay protection device in a convenient and reliable manner.

The invention belongs to the technical field of traffic safety and discloses a driver fatigue state detection method based on a smart phone and a smart watch. The method comprises a step of collectingvehicle driving state data and driver operating behavior data through the smart phone and the smart watch, a step of separating superimposed vehicle driving state information in the driver operatingbehavior data collected by the smart watch to obtain data information capable of reflecting a driver operating behavior, a step of extracting a driver fatigue state characteristic value according to the vehicle driving state information and driver operating behavior information, and a step of removing a redundant characteristic index in the extracted driver fatigue state characteristic value basedon a genetic algorithm, taking a characteristic index combination with the removal of the redundant characteristic index as an input, and establishing a fatigue detection model based on a BP neural network to monitor the state of a driver.

The invention discloses an improved antibody chip kit capable of quantitatively detecting multiple cell factors synchronously. The kit includes a standard tissue slide which is coated with activated amino groups and is used as a surface carrier. Various antigen-specificity antibodies are spotted on a surface of the slide to form a microarray through a non-contacting sample spotting instrument. The slide is divided into sixteen small zones, which are not interfered with each other, through a detachable 2*8-hole plastic frame, wherein each small zone contains an antibody microarray. Each captured antibody is repeated by four times in each antibody microarray. The slide and the frame are tightly clamped with each other through plastic clamping plates which are arranged at the two sides to form an antibody chip. Experimental reagents of a multiple sandwich ELISA reaction are completed on the surface of the slide. By means of the antibody chip kit, multiple cell factors can be quantitatively detected synchronously. A sensitivity of the kit is similar to that of single ELISA but a dynamic detection range of the cell factors is wider. Repeated data, which is as four times as that of ELISA, can be obtained from a single-sample experiment. The kit is high in sensitivity, is high in flux, is little in sample usage amount, is low in cost and is easy to popularize.

The invention discloses a gas turbine combustion state parameter monitoring system based on a TDLAS technology. The gas turbine combustion state parameter monitoring system comprises a laser emissionmodule, a laser transmission module, a laser data analysis processing module and a combustion state display module which are sequentially connected. During working, required incident laser is generated through the laser emission module; the incident laser and the laser absorbed by the flow field of a combustion chamber are transmitted through a laser transmission module, and a laser signal is converted into an electric signal; effective electric signals are extracted through a laser data analyzing and processing module, flow field temperature, pressure and H2O concentration are inverted, pressure pulsation characteristics are analyzed, combustion efficiency is calculated, and whether flames exist or not is judged; the combustion flow field temperature, the pressure pulsation characteristics, the flame, the combustion efficiency and the like are displayed through a combustion state parameter display module. The combustion state parameters of the gas turbine are measured by adopting a non-contact method, the method has the advantages of no interference to the flow field, wide measurement range, high precision, quick response, simple system composition and the like, and the combustionstate monitoring system of the in-service gas turbine can be simplified.

The invention discloses a method for detecting seven prohibited compounds in flavors and fragrances. The seven prohibited compounds are methanol, sec-butyl alcohol, safrole, imidazole, coumarin, musk xylene and sesamol. The detection method can accurately and rapidly detect the contents of the seven prohibited compounds in flavors and fragrances, is suitable for quality safety control of fragrance raw liquid and auxiliary solvents in the industries such as food, daily-use chemical industry, tobacco and pharmacy, and the has the characteristics of simple operation, rapidness, accuracy, good repeatability, high sensitivity and the like.

The embodiment of the invention discloses a method and a system for device-to-device communication on a wireless local area network frequency band. The method comprises the following steps: a base station receives a D2D communication request message reported by a first mobile terminal, determines the configuration information of a WiFi module for processing a communication service on the WLAN frequency band according to the WiFi module information of the first mobile terminal and a second mobile terminal while determining that the communication service between the first mobile terminal and the second mobile terminal is processed on the WLAN frequency band, indicates one of the first mobile terminal and the second mobile terminal to initiate an IBSS on the basis of the configuration information of the WiFi module, and notifies the other mobile terminal to join the IBSS, so that the first mobile terminal and the second mobile terminal establish WiFi connection and process the communication service on the WLAN frequency band through D2D communication according to the configuration information of the WiFi module. The method and the system disclosed by the embodiment of the invention are capable of avoiding occupying the authorized frequency bands of the traditional cellular network, and generating interference on the traditional cellular communication service.

The invention relates to a spectrum distributing method which comprises the steps of: detecting a receiver by a slave transmitter to determine a transmitting spectrum hole, and detecting a transmitter by a slave receiver to determine a receiving spectrum hole; and taking intersection of the transmitting spectrum hole and the receiving spectrum hole to obtain a frequency set of a slave system, and carrying out spectrum distribution on the slave transmitter and the slave receiver according to the frequency set. The invention also relates to a spectrum distributing method of a cognitive mobile communication system. In the invention, problems of concealing and exposing stations can be avoided by adopting spectrum hole classification during spectrum distribution, and therefore, the disturbance probability of a slave user to a master user is reduced, disturbance coordination in the cognitive mobile communication system is further realized, and disturbance generating probability is reduced.

The invention relates to an optical current sensor and a high-frequency signal measurement system. The optical current sensor comprises an optical sensing part, a polarization maintaining fiber, an insulator and a demodulation module. The optical sensing part, the polarization maintaining fiber and the demodulation module are connected in sequence. The optical sensing part is supported by the insulator. The polarization maintaining fiber locates in an inner cavity of the insulator. The optical sensing part comprises a first sensing fiber ring, a second sensing fiber ring, a first wave plate, a first reflector, a second wave plate, a second reflector and a support, wherein the first wave plate, the first reflector, the second wave plate, the second reflector and the support are all made of nonmetal material. The first sensing fiber ring and the second sensing fiber ring are opposite in current direction. The demodulation module outputs two linearly-polarized beams passing the polarization maintaining fiber and the optical sensing part, the linearly-polarized beams carrying measured current information are returned and received by the polarization maintaining fiber, the beams are operated on the basis of differential induction, and measured current is obtained. The optical current sensor is capable of measuring high-frequency signals, and measurement is higher in accuracy and reliability.

A robot gripper for box body stacking and unstacking is applicable to logistics and warehousing industries of foods, medicine, tobaccos and the like, comprises a flange connected with a stacking robot, a top plate, a pair of downward inserting devices, a pair of side-pressing devices, a pair of bottom side-inserting devices, a selectable sucking disc and six groups of positioning sensor assemblies and has stacking and unstacking functions. By adopting the mode that box bodies are wholly surrounded, the possibility of box loosening in the quick carrying process is eliminated. The box body placing faces can be avoided during placing or gripping operation, a contact type placement is adopted, and impact caused falling, bumping and the like is avoided. The positioning sensor assemblies confirm poses of box bodies to be gripped according to a 'six-point positioning' principle, and accordingly confirmation of gripping poses of the gripper is achieved. Sensors in the different corresponding positioning sensor assemblies can be utilized to trigger interval time, and judgment on abnormal poses of the box bodies to be gripped can be performed and serves as a warning condition, so that timely shutdown and manual intervention and adjustment can be performed when the situation occurs.

An implement method and system to allow different communication systems to coexist in a license-free frequency band are disclosed. The invention provides an implement method to allow different communication systems to coexist in the license-free frequency band, and the method comprises the steps of monitoring license-free frequency band sub channels; selecting one or more candidate license-free frequency band sub channels that satisfy alternative conditions; determining, based on the data amount of first data information transmitted by the license-free frequency band sub channels, whether the candidate license-free frequency band sub channels are in an idle state or not; if so, occupying the candidate license-free frequency band sub channels for transmitting second data information, and processing according to a preset information processing mode when the candidate license-free frequency band sub channels are in the idle state; if not, determining whether the candidate license-free frequency band sub channels are in a non-full load state; if so, processing according to a preset information processing mode when the candidate license-free frequency band sub channels are in the non-full load state; and if not, giving up the occupation of the candidate license-free frequency band sub channels temporarily. The invention uses the license-free frequency band for transmitting cellular data, thereby doubling the mobile broadband network capacity and improving the spectral efficiency.

The invention discloses a device and method for detecting a fuse mounting position of a vehicle body control module. The detecting device comprises a base and supporting columns vertically arranged on the base, the supporting columns are arranged at the two ends of the base, cross arms are arranged on the two supporting columns, the two ends of each cross beam are mounted on the different supporting columns respectively, a camera fixing plate is arranged on one sides of the cross arms, a camera is arranged on the tail portion of the camera fixing plate, and an LED light source is arranged on the other sides of the cross arms. A vehicle body control module locating column used for fixing the vehicle body control module is arranged at the position, below the camera, on the base. The detecting device further comprises a control and display box used for displaying whether the fuse mounting position is correct or not. The device for detecting the fuse mounting position of the vehicle body control module of the special structure enables the controlled vehicle body control module and the camera to be connected and fixed to be a mechanical whole through a mechanical device, the interference from outside vibration can be effectively prevented, and test reliability is improved.

The invention relates to an object pose estimation method based on a deformation convolution network, and the method comprises the steps: S1, obtaining a color image and a depth image of a target object, inputting the color image of the target object into a trained instance segmentation network, and obtaining an instance segmentation result; S2, respectively cutting out a color image block and a depth image block containing the target object from the color image and the depth image according to the instance segmentation result, and converting the depth image block into a point cloud represented by a three-channel image; S3, setting a pixel value of an area, which does not contain the target object, in the color image block and the point cloud image to be 0, and then inputting the pixel value into the trained deformation convolution network to obtain a target object pose estimation result; and the receptive field of the deformation convolution network extraction features is concentratedin the region where the target object is distributed on the color image block and the point cloud image. Compared with the prior art, the method has the advantages of high precision, high efficiencyand the like.

The invention provides a magnetic resonance imaging device and a scanning method of magnetic resonance imaging. The method comprises the following steps: providing a magnetic resonance pulse sequence,including excitation pulse and re-focusing pulse, the two pulses being configured according to one of the following methods, thickness of a scanning layer on which the excitation pulse acts being larger than standard layer thickness and layer thickness on which the re-focusing pulse acts being equal to the standard layer thickness, or thickness of a scanning layer on which the excitation pulse acts being equal to the standard layer thickness, and the layer thickness on which the re-focusing pulse acts being larger than the standard layer thickness; determining one or more scanning layers; according to liquid flowing directions in the scanning layers, determining scanning sequence of the scanning layers; and using the magnetic resonance pulse sequence to perform magnetic resonance scanningon the one or more scanning layers. The magnetic resonance imaging device and the scanning method of magnetic resonance imaging can reduce interference of an imaging sequence caused by pulsation.

The invention discloses a wireless thermocouple and a temperature measuring device using the same. The temperature measuring device comprises a receiving host, a protective sleeve, an electronic bin,a circuit board and the thermocouple; the thermocouple is arranged inside the protective sleeve; one end of the thermocouple extends to the inside of the electronic bin and is connected with the circuit board; the circuit board is provided with a data acquisition module, a data front-end processing module, a data processing module, and a wireless communication module; the thermoelectromotive forceis acquired from the thermocouple through the data acquisition module, and then the thermoelectromotive force is subjected to amplification, filtering and other processes through the data front-end processing module; analog signals are converted into digital signals through the data processing module; combined with the temperature characteristics of a cold end temperature compensation signal andthe thermocouple, the thermoelectromotive force is directly converted into the temperature and transmitted to the wireless communication module; and the wireless communication module transmits data tothe receiving host through a preset data transmission requirement and a communication protocol, and the receiving host receives and forwards the data to a cloud platform, so that the grid control ofthe temperature is realized.

One embodiment of the invention provides a chip test device and a method. The device comprises a pressing module, a voltage control module and a test host computer; the pressing module is used for simulating gesture operation on tested chips and is electrically connected with constant signals; the test host computer is used for controlling the tested chips to output dynamically varied excitation signals; the voltage control muddle is used for dynamically regulating the test electrical signals of the tested chips to obtain equivalent fluctuation status of the excitation signals according to the dynamical variation of the excitation signals and rated electrical signals of the tested chips at normal operation; the test host computer is used for determining the test result according to the equivalent fluctuation status of the data excitation electrical signals obtained as test chips work under the equivalent fluctuation status of the excitation signals. According to the method and device, the pressing module is directly connected with constant electrical signals such as public reference ground connection without the need of excitation signal TX pin leading wires so that the cost of the system is saved. Besides, the pressing module is directly connected to the public reference ground which has relatively stable signals and will not be interfered by external signals.

The invention belongs to the technical field of electroacoustic products, and particularly relates to an MEMS loudspeaker which comprises a shell, an annular groove is formed in the shell in a surrounding mode, a sound transmission channel extending in the axis direction of the annular groove is arranged on the shell, and the MEMS loudspeaker further comprises a piezoelectric vibrating diaphragm arranged on a groove opening of the annular groove in a covering mode. The MEMS loudspeaker is electrically connected with the electronic product. Through the change of the voltage signal, the piezoelectric vibrating diaphragm can generate corresponding vibration so as to make a sound. When in use, the piezoelectric vibrating diaphragm is over against the ear of a user, the sound generated by the MEMS loudspeaker can be directly transmitted to the ear of a user, and the situation that sound diffuses all around and disturbs people around can be reduced. The MEMS loudspeaker is provided with a sound transmission channel used for transmitting external sound to the ears of the user. According to the embodiment of the invention, the MEMS loudspeaker can ensure that the sound emitted by the MEMSloudspeaker can be directly transmitted to the ear of the user without interfering surrounding people, and the external sound cannot be hindered from being transmitted to the ear of the user.

The invention discloses a method for quickly detecting beta-hemolytic streptococcus in a textile product. The method is characterized in that two technologies of IMS (immunomagnetic separation) and RPA (recombinase ploymerase amplification) are combined, and the beta-hemolytic streptococcus in a sample is enriched by an immunomagnetic bead capturing technology; one set of specific primer and probeusing the RPA technology as the core technology is designed for the target gene with the specificity HtrA of the beta-hemolytic streptococcus, and the enriched beta-hemolytic streptococcus is detected by the RPA technology. The method has the advantages that the culture is not needed in the whole process; the time is shortened, the operation is quick, the efficiency is high, the specificity is good, the sensitivity is high, the anti-interference property is strong, the application range is broad, and the detection cost is low; the method is not only suitable for sanitation health and epidemicprevention departments and health and supervision departments, and but also suitable for the sanitation detection in enterprises and families.