392results about How to "Resolve mutual interference" patented technology

The invention discloses a downlink mode of transmission, network devices and a wireless device in the coordinated multiple-point transmission systems. The method includes the following steps: make clear the correspondent downlink physical resources and downlink mapping rules to the established sending physical downlink data channel and / or reference signal of the cooperation community. The downlink channel and / or reference signal are mapped to the downlink physical resources according to the downlink principles and then delivered to the terminals. The embodiment of the invention can expand the effective coverage, and to avoid interference between different communities.

The invention discloses an aerated concrete cutting machine. The machine comprises vertical posts, I-shaped girders and a frame, wherein the I-shaped girders are erected on the vertical posts; the frame consists of a cross beam which is positioned above the vertical posts and is fixed with the girders; an overturning platform is arranged at the middle position of the frame; a vertical cutting device which does up-and-down lifting motion is arranged between the two vertical posts in the middle of the frame; a horizontal cutting device which moves along the longitudinal direction of a blank body is arranged between the two girders; and a scrap edge cleaning device is arranged beside the overturning platform. The cutting machine integrates machines, electricity and liquid, has a compact structure, small occupied space, complete functions, high cutting accuracy and a clean and tidy operation field environment, has various functions of automatically longitudinal cutting, transverse cutting, hexahedral cutting, tetrahedral scalping, two-sided peeling, automatic scrap edge cleaning, specially-shaped brick cutting and the like, makes cutting dimensions conveniently adjusted, and reduces the labor intensity of operators due to humanized designs.

The invention discloses an air-quality monitoring system based on electronic nose technique, and a monitoring method thereof. The system is characterized by being provided with a sensor signal conditioning circuit, wherein a quality detection input end group of the sensor signal conditioning circuit is connected to a gas sensor group; the output end of the sensor signal conditioning circuit is connected to a sensor array signal preprocessor; the output end of the sensor array signal preprocessor is connected to a central processing unit; and a display end of the central processing unit is connected to a display. The system has the advantages that the discreteness problem of a metallic oxide sensor and the mutual interference problem of various gases are better solved by utilizing a virtual resistance method and a specific algorithm provided by the invention, thereby greatly promoting the output precision of the system, being capable of calculating the concentration values of different outputted gases, and determining the type of the gases, and simultaneously finishing the qualitative and quantitative identification of gases, and one output of an artificial neural network represents one gas.

The invention discloses a user terminal which is used for solving the problem that an existing near field communication (NFC) coil and an existing wireless charging coil share a user terminal and mutually interfere. The user terminal comprises that a control unit is used for detecting an electromagnetic wave signal of an alternating magnetic field and confirming an operating mode, if the operating mode is an NFC model, a short distance wireless communication command is sent to the NFC unit and a second breaking command is sent to a wireless charging unit. If the operating mode is a wireless charging mode, a charging command is sent to the wireless charging unit and a first breaking command is sent to the NFC unit; after the NFC unit is used for receiving the short distance wireless communication command, the NFC conducts short distance wireless communications with external sensing equipment. After the NFC unit receives the first breaking command, the short distance wireless communication is stopped with the external sensing equipment. The wireless charging unit is used for conducting wireless charging by the external sensing equipment after receiving the charging command. After the wireless charging unit receives the second breaking command, the wireless charging is stopped. The invention further discloses a method controlling switching of the NFC unit and the wireless charging unit.

The invention discloses a wireless sensor network multiple target real-time tracking system based on event drive. The system is designed by using a hierarchy logical structure, wherein a perception layer, a network communication layer and an application layer are respectively comprised. In order to avoid network conflict in a multiple target tracking process, a self-adaption clustering node scheduling strategy based on a task is used. A Calman filter positioning tracking algorithm based on event drive is disclosed. A least square method with fast convergence speed is used to modify a current Calman filter state value, and positioning tracking is carried out on a number of mobile robots in a sensor network. The system uses a double token working mode and is combined with a dynamic time slot allocation method based on a task to effectively complete a network task in real time. The system uses the self-adaption clustering node scheduling method, can automatically carry out clustering on measurement data according to a moving target, breaks a previous working mode which is limited by single target tracking, and realizes a real-time multiple target tracking function and remote feedback control based on a wireless network.

The invention relates to a method for determining anisotropic parameters by utilizing the data of a three-dimensional VSP (Vertical Seismic Profile). The method comprises the following steps: when collecting the actual journey of the three-dimensional VSP, computing the time difference of each depth point; computing the anisotropic parameters of a VT I medium and the residual time difference after being corrected; determining the anisotropic parameters of an HT I medium according to the relation fitting between the residual time difference and the azimuth angle; computing the VT I anisotropic parameters of each depth point and the anisotropic parameters of the HT I medium point by point; obtaining the parameter curve of the relation that the anisotropic parameters are changed along with the depth; and eliminating the influence of the dynamic correction time difference which is changed along with the wellhead distance or the shot-geophone distance. In the method provided by the invention, the problem that the VT I anisotropic medium and the HT I anisotropic medium have the mutual interference is solved; the anisotropic influence of earthquake can be effectively eliminated; and the imaging quality of the earthquake and the prediction accuracy rate of oil gas are enhanced.

The invention belongs to the diesel spray and combustion visualization research field and discloses a measurement apparatus capable of simultaneously measuring a diesel spray structure and a combustion characteristic based on a laser diagnosis technology and a method thereof. In the past, test researches of a diesel spray characteristic and the combustion characteristic can not be performed simultaneously. In the invention, through using a Mie scattering technology of a laser and a laser induced fluorescence technology (OH-PLIF), the spray structure and the combustion characteristic during diesel combustion can be simultaneously measured and researched. The corresponding apparatus comprises a laser system, a constant volume combustion bomb system, a fuel oil supply system, a signal synchronization system and a signal acquisition system. The test apparatus can simultaneously carry out test researches of a liquid phase length of diesel spray and OH-PLIF distribution under a combustion condition, simultaneously can indicate a liquid phase area in a diesel combustion OH-PLIF distribution map and solves an interference problem of a liquid phase signal to a laser-induced fluorescence signal.

The invention discloses a vehicle optimal-path navigation method based on vehicle internet. The vehicle optimal-path navigation method can be used to obtain determined and real-time OD (Origin Destination) information for replacing the original OD information obtained through estimation, so that the calculation of an optimal path is simpler and more reliable. According to the method, a dynamic connection matrix is arranged for marking the connection state of a road network; and a traffic monitoring center solves the optical driving path of a vehicle in the road network by using an improved ant colony algorithm according to the OD information and the dynamic connection matrix, so that the vehicle can respond to the accidents in real time and the purposes of increasing the navigation accuracy and improving the operation efficiency of the vehicle are achieved.

The invention relates to a method for recognizing a vehicle type based on a Doppler traffic radar, which is used for effectively reflecting a traffic condition of a road in real time. The method comprises the following steps of: acquiring a radar echo power spectrum time sequence which changes over time with a periodogram method by taking a time domain digital echo signal of the forwardly mountedDoppler traffic radar as signal input; modeling a vehicle into a target body comprising a plurality of scattering centers, wherein the scattering centers are related to distance and frequency spectrum energy of the radar, so that the power spectrum sequence of a same target reflects the profile of the target; then combining effective frequency spectrum characteristic with principal component analysis (PCA) and linear discriminant analysis (LDA) for dimension reduction; and typing by using classifiers such as a support vector machine (SVM) and the like. By adopting the method, the vehicle typecan be accurately recognized in real time, the accuracy rate for dividing a large vehicle type, a medium vehicle type and a small vehicle type reaches 90 percent, the requirements of most of users can be met, and the method has board application prospect.

The invention provides group control device and method for a multi-robot welding system. The device mainly comprises a positioning machine, a PLC electric cabinet, a plurality of welding robots, a welding machine and other parts; the system in on the basis of a communication model of a CC-LINK field bus, the PLC is treated as a working main station, all robots are equipped with CC-LINK communication cards to be used as secondary stations, and the main station and the secondary stations are equipped with detailed control signal sheets for realizing main-secondary information sharing and real-time feedback; in case of a specific complex component, the working area of each robot can be reasonably divided, the quantity of robots for welding can be flexibly selected, a touch screen is operated for human-computer interaction, and therefore, the states and parameter settings of each robot, welding machine, positioning machine and other devices can be monitored conveniently, and as a result, the whole system can be simply, safely, flexibly and efficiently controlled.

The invention discloses a cathodic protection monitoring probe, a cathodic protection monitoring probe monitoring system, and a manufacturing method and a monitoring method thereof. The probe main body is integrally cylindrical; the probe core is integrally cylindrical and is provided with a hollow blind hole; the hollow hole is a probe core cavity; the upper part of the probe core is provided with an electrode threaded hole which passes through the cylindrical wall of the probe core and is communicated with the probe core cavity; the probe core cavity is provided with a reference electrode; and a fixing layer is arranged between the reference electrode and the cylindrical wall of the probe core so as to fix the reference electrode in the probe core. The cathodic protection monitoring probe has the advantages of scientific design, reasonable structure, reliable performance, wide application range, high stability, strong polarization resistance, and stable quality, and is used for pipeline transportation of various fluid materials such as crude oil, natural gas, running water, urban liquefied gas and the like in the fields such as highways, railways, water transportation, aviation, agriculture and industry and the like.

The multiple sensor chip integrated based on SOI technology includes silicon cantilever beam, silicon film, supporting silicon base around the silicon film, peripheral silicon mass block and glass substrate. The silicon film, the supporting silicon base and the glass substrate form the relatively independent vacuum environment as the pressure sensor inside the silicon chip; the silicon cantilever beam structure is connected to the peripheral silicon mass block to form the 3D speed sensor; and on the peripheral silicon mass block, there are integrated humidity sensor and temperature sensor. The present invention integrates several sensors on the same chip to solve the problem of mutual interference and result in small size and light weight, and may find its important application in various fields.

The invention provides a multi-channel data acquisition synchronization system. The multi-channel data acquisition synchronization system comprises a GPS timing module, an ARM base board, an information sampling board and a computer, wherein the GPS timing module sends the serial port data of the GPS absolute time and second pulse signals to the ARM base board; the ARM base board receives the serial port data and the second pulse signals, implements multi-channel splitting, and then sends the data and signals to the information sampling board; the information sampling board resolves, records and acquires the data and sends the data to the computer; and the computer receives, stores and reads the data sent by the information sampling board, draws a waveform curve graph, and analyzes the circuit data according to the waveform curve graph. The circuit data is acquired by adopting the multi-channel data acquisition synchronization system provided by the invention, no signal interference exists between each acquisition channel, each channel has a uniform time reference, and thus the data with higher accuracy can be acquired.

The invention provides a code issuing system based on git, which is characterized in that the system comprises five modules: git warehouse, work order information database, target machine cluster, configuration management background and deployment operation platform. The invention effectively solves the problems of mutual interference of multiple requirements, multi-person cooperative development,remote code sharing, omission distribution and entrainment distribution in the test phase by designing a scheme of multi-branch, multi-environment, parallel development and serial distribution basedon the git version control and the improved version of gitflow workflow mode.

The invention discloses an interference correction and concentration inversion method of multi-component gas analysis, which comprises the following steps: a reference filter channel is used for eliminating the system drifting because of external factors; the water vapor is utilized to correct the interference of the water vapor of an analysis meter in the service environment on the interference functions of the other filter channels; the cross-correlation functions are utilized to obtain the pure absorbance of various target gases in the mixed gas by establishing and solving a multivariable interference equation set, and the cross interference among the target gas is corrected; and after the interference is corrected, the response functions of each filter channel are utilized to inverse the concentration of the target gas. After a simple non-dispersion infrared analysis meter utilizes the interference correction and concentration inversion method provided by the invention, a detectoris used for simultaneously and accurately detecting the concentration of various polluted gases such as CO2, CO, NO, NO2, SO2, CH4, N2O, HC, H2O, NH3, H2S and the like.

The invention relates to a method and apparatus for controlling WIFI and Bluetooth BLE data transmission in the same system. The method comprises the following steps: a priority judgment step: judging the priorities of WIFI and Bluetooth BLE data transmission at the same moment; and a data transmission step: firstly transmitting data with a higher priority and then transmitting data with a lower priority in the two components. According to the method and apparatus provided by the invention, the priorities of data transmission are judged to control the data transmission, thereby solving the mutual interference problem of WIFI and Bluetooth BLE, optimizing the existing transmission system, and improving the system transmission performance.

The invention discloses an anti-collision system of a chaotic signal radar vehicle and a method thereof, and is characterized in that the chaotic signal produced by a chaotic laser in the system is used as a radar carrier signal; after passing a power splitter, one part of the radar carrier signal is used as a transmit; another part of the radar carrier signal is used as a reference signal; in the method, an echo signal and the reference signal in a correlation method are adopted to obtain the delay time of the echo signal so as to calculate and obtain the distance of a target obstacle; by using a distance difference in a certain time interval, the relative speed of the target obstacle is calculated and obtained. The anti-collision system disclosed by the invention utilizes the nonlinear characteristic of the radar to produce the chaotic signal as the carrier wave of the radar so as to obtain a broadband chaotic signal, thereby improving the anti-interference ability of the on-board radar, accurately realizing a corresponding warning and a braking, and avoiding the occurrence of an accident; besides, the anti-collision system has the advantages of simple structure, stable property and low price, thereby being applicable to various vehicles.

The invention provides an audio output method and device. By presetting an audio output assignment scheme, users can conduct setting correspondingly according to their own needs, the situation of preemption or interrupt during simultaneous output of various types of audio information is avoided, and user experience is improved. The method comprises the steps of acquiring audio information to be output, judging the type of the audio information to be output, and judging the optimal output path of the audio information to be output according to the preset audio output assignment scheme and the type of the information.

The invention discloses a high-power optical fiber laser. The laser structurally comprises a residual light collector, a red light / signal light beam combiner, a red light laser, a reverse cladding light mode stripper, a forward pumping pump source module, a forward pumping / signal beam combiner, a high-reflection grating, doped optical fiber, a low-reflection output grating, a reverse pumping / signal beam combiner, a reverse pumping pump source module, a forward cladding light stripper, and output optical fiber with an antireflection film end cap. Based on a linear fabry-perot resonance cavity structure, the forward pumping pump source module and the reverse pumping pump source module, with different wavelengths, provided with narrow-band protection filters are adopted, the forward pumping / signal beam combiner and the reverse pumping / signal beam combiner pump doped optical fiber from the front end and the back end of the doped optical fiber through the high-reflection grating and the low-reflection output grating at the same time, so that multi-kilowatt-class power stable output of the optical fiber laser is achieved, and mutual damage of residual pumping light on two sides to a pumpsource chip is avoided.

The present invention relates to a system for quickly detecting tunnel deformation, comprising a rail walking mechanism (1) disposed on a subway rail, and an acquisition system (2) disposed on the rail walking mechanism (1); wherein the rail walking mechanism (1) is a T-shaped walking platform, comprising a cross shaft (11), a longitudinal shaft (12) and a stand column (13); the cross shaft (11) and the longitudinal shaft (12) are connected to form the T-shaped platform; tread wheels (16) are disposed at the bottom of the T-shaped platform; one end of the stand column (13) is vertically connected with the cross shaft (11), and the other end of the stand column is used for configuring an operating platform (14) of the acquisition system (2); the acquisition system (2) comprises a fractional laser structured light source (21), industrial focus-fixed cameras (22) and a computer; and the computer is connected with the industrial focus-fixed cameras (22). Compared with the prior art, the quick detection device can effectively solve the problem of detecting cross section deformation of tunnels, the problem of transforming many different local coordinate systems to a global coordinate system, and the problem of unstable test data caused by movements.

The invention discloses a two-dimensional multi-aperture scan synthetic aperture radar (SAR) imaging method. The method includes the following steps of S101, subjecting echo data received by sub-apertures to range direction pulse compression respectively by using a range direction matched filter; S102, uniting the echo data which are subjected to pulse compression in a range direction and an azimuth direction to form a matrix Z and subjecting rows of the matrix Z to weighting summation by using a two-dimensional weighting vector wk respectively; and S103, subjecting the echo data to focusing imaging by using an extended chirp scaling (ECS) algorithm. By means of range direction and azimuth direction united two-dimensional digital beam forming (DBF) processing, echo separation of various sub-swaths and frequency spectrum reconfiguration of azimuth periodicity non-uniform sampling signals are achieved, and problems of mutual interference and azimuth multi-channel non-uniform sampling of echo signals of various sub-swaths under a two-dimensional multi-aperture scan SAR mode are solved.

The invention provides a digital oscilloscope with an impedance matching function. The digital oscilloscope comprises an input part for receiving a tested signal, a measurement part for measuring the tested signal, a control part, a first circuit, a second circuit and a selector, wherein the first circuit is used for outputting the signal to the measurement part when the control part transmits a third control signal; the second circuit is used for outputting the signal to the measurement part when the control part transmits a fourth control signal; and the selector is used for ensuring that the input part is connected in series with the first circuit through a 50-omega impedance attenuation module when the control part transmits a first control signal, and the input part is connected in series with the second circuit through a 1M-omega attenuation module when the control part transmits a second control signal. The digital oscilloscope has the characteristics of simplifying the front-end circuit designing difficulty of the oscilloscope, improving the frequency limit of the 50-omega impedance input mode, increasing the bandwidth, improving the characteristics and reducing noise, and is particularly suitable for the high-frequency section digital oscilloscope.

Disclosed herein is a system and methods for determining the alleles, neoantigens, and vaccine composition as determined on the basis of an individual's tumor mutations. Also disclosed are systems andmethods for obtaining high quality sequencing data from a tumor. Further, described herein are systems and methods for identifying somatic changes in polymorphic genome data. Finally, described herein are unique cancer vaccines.

The invention discloses a Ka wave band flat plate gap array antenna monopulse feed network. The feed network is composed of parts such as a radiation gap feed layer, a power distribution network, a monopulse network and the like, wherein the power distribution network adopts a feed waveguide broadside opening inclined joint form, and is used for carrying out coupling feed on the radiation gap feed layer and controlling the feed power through adjusting a feed waveguide centre gap tilt angle; the monopulse network adopts four flat surface magic Ts to form a sum and difference channel in a bell socket manner, and is used for feeding to the power distribution network through a coupling gap, and each flat surface magic T is provided with an inverted-step-shaped metallic membrane, which is used for carrying out voltage standing wave ratio distribution and improving standing wave band width and amplitude-phase consistency band width of each magic T; and coupling folded wave guide is adopted, thus the array radiation gaps are arranged at the same interval, the distance between the last feed inclined joint and the short-circuit end is 1 / 2 waveguide wavelength, and the problem of mutual interference among feed waveguides is solved.

The invention discloses an MIMO-EDM wireless communication system and method. The MIMO-EDM wireless communication system comprises a hybrid system and a separation system. Multiple-input multiple-output technology and MIMO technology are combined, and multiple paths of signals can be separated from entropy domains by using an entropy division multiplexing algorithm. The MIMO-EDM wireless communication method comprises the following processes: transmitting n paths of source signals; receiving the aliasing signals through a receiving end; and separating the multiple paths of aliasing signals through the separation system. According to the MIMO-EDM wireless communication system and method, the utilization rate of spectrum resources and the capacity of wireless channels are improved; negentropy is used as the criterion of statistical independence, and the separation of the multiple paths of aliasing signals is realized in the information entropy domains for the first time; and high-speed and high- quality broadband wireless communication is realized.

The invention discloses an information input device and method with function of eliminating mutual interference among sensing signals, belonging to the field of computer peripheral equipment. According to the method disclosed by the invention, a capacitive touch control module is closed and an electromagnetic sensing module is started for performing electromagnetic scanning, or the electromagnetic sensing module is closed and the capacitive touch control module is started for performing capacitive scanning, so that the electromagnetic scanning and the capacitive scanning are performed in a time-division scanning and time-division working manner, thus, the problem of the mutual interference between electromagnetic sensing signals and capacitive touch signals is completely solved. According to the device disclosed by the invention, handwritten data information and hand touch data information are recognized by adopting a manner of combining an electromagnetic board and a capacitive touch control board, the positioning accuracy of the information input device in which an electromagnetic sensing technology and a capacitive touch control technology are applied is improved in the time-division scanning, and the touch control operation by a pen and fingers is realized on the same information input device.

The invention is applied to the field of serial port communication, and provides an automatic switching circuit for an RS232 interface and an RS485 interface and a serial port liquid crystal display module. The automatic switching circuit comprises a first photoelectric isolation circuit, a second photoelectric isolation circuit, a serial port state detection circuit, a power control circuit, a data transmission and reception control circuit, an RS485 transceiver and a common channel isolation circuit. In the embodiment of the invention, when the automatic switching circuit adopts a common data display channel for the RS232 interface and the RS485 interface to communicate with a master control micro control unit (MCU), and the common channel is completely isolated, so that the problem of mutual interference of the common channel is solved; the serial port state detection circuit judges the current working conditions of the RS232 interface and the RS485 interface, and is matched with the power control circuit to timely cut off power supplied to the RS485 interface, so that the problem of possible interference when the RS232 interface and the RS485 interface are simultaneously connected can be solved; and in addition, a photoelectric isolation method is adopted to prevent surge and lightning, so that the automatic switching circuit can be well applied to industrial application places.

The invention relates to a tamed spread spectrum multiplexing method for high-speed data transmission. The method is characterized by comprising a transmitting step and a receiving step, wherein the transmitting step comprises the following steps of: converting 2n-bit serial data to be transmitted into two paths of parallel data, performing multi-nary data spectrum spread, acquiring a baseband signal, performing D / A (Digital / Analog) conversion to acquire an analog baseband signal, and transmitting through quadrature modulation; and the receiving step comprises the following steps of: converting a high-frequency signal received by an antenna into an intermediate-frequency signal, then converting the intermediate-frequency signal into a digital intermediate-frequency signal, and converting the digital intermediate-frequency signal into serial data through digital demodulation, synchronous signal de-spread and parallel-series conversion. The tamed spread spectrum multiplexing method for the high-speed data transmission is an effective technical means for solving the contradiction between the communication rate and the signal bandwidth of spread spectrum communication, so that the shading property, the reliability and the anti-interference performance of high-speed data communication equipment are improved.

The invention discloses a coordinated control method and a coordinated control device for electronic differential speed and active differential steering. The coordinated control method comprises the following steps of: calculating an ideal yaw angular velocity omega d according to a steering wheel rotation angle delta f input by a driver; Calculating a moment Mb according to the yaw angular velocity omega d; Judging whether the direction of the output rated torque KsMz of the active differential steering controller is the same as the direction of the torque Mb when the active differential steering controller is in the auxiliary driving mode, and detecting the actual yaw angular speed omega r of the vehicle if the direction of the output rated torque KsMz is the same as the direction of thetorque Mb; Otherwise, it is judged whether[Omega] r ( [Omega] D); If yes, the electronic differential controller and the active differential steering controller control simultaneously, otherwise, theelectronic differential controller stops the control. The invention can reasonably and effectively coordinate the working relationship between the two controllers, and solves the problem that the driver and the control system interfere with each other when the lane departure auxiliary control system of the traditional automobile is designed based on the steering.

The invention discloses a displacement-adjustable precision locating platform. The displacement-adjustable precision locating platform comprises a base, a manual adjustable frame sliding table platform, a platform cushion block, a compliant hinge precision locating platform body, four electromagnetic armatures, two Z-axis right-angle junction plates and electromagnetic drivers. The manual adjustable frame sliding table platform can achieve three-freedom-degree precision locating adjustment through a cross rotating guide rail. The platform cushion block is arranged on a sliding table through four evenly-distributed threaded holes. The middle of the compliant hinge precision locating platform body is fixed to the platform cushion block through two threaded holes, and therefore the platform can achieve displacement in the X-axis direction and Y-axis direction along with the manual adjustable frame sliding table platform. The four electromagnetic armatures are fixed in the four directions of the compliant hinge precision locating platform body in a threaded connection manner. The two Z-axis right-angle junction plates are in threaded connection with the base of the platform. The electromagnetic drivers serve as drive equipment of the platform and are in threaded connection with the Z-axis right-angle junction plates to be connected with the base of the platform. The displacement-adjustable precision locating platform is simple in structure, small in overall size, low in cost and convenient to operate, and the high-precision locating requirement can be met.