85results about How to "Solve mutual interference" patented technology

The invention provides a quantum dot laser pointing type backlight module and naked eye 3D display device. The device comprises at least two rectangular light guide plates which are mutually tightly laminated. The light-exiting surface of each light guide plate comprises pixels of different nanometer grating orientations. Blue lights emitted by a light source group are collimated and come into the light guide plates. Groups of pixel arrays of the light-exiting surface of each light guide plate couple the lights in the light guide plate out of the surface of the light guide plate to form outgoing lights of different orientations. The outgoing lights irradiate red and green quantum dot pixel lasers corresponding to the surfaces of the light guide plates, so as to inspire red and green lights. Red, green and blue lights are in the same outgoing direction, so as to form a pointing type white light backlight source with different outgoing angles. The outgoing angles are corresponding to multi-angle images of a liquid crystal display LCD, so that color 3D display is formed and can be observed through naked eyes.

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 belongs to the technical field of structural health monitoring and relates to a structural damage monitoring system and a monitoring method thereof. The structural damage monitoring system of the invention mainly comprises a power supply system, a controller, a power amplifier, a signal generator, a data acquisition plate, an I / O control panel, a charge amplifier, a multichannel switching apparatus, a 24-channel sensor array and a computer man-machine interface. Based on active Lamb wave, the structural damage monitoring method of the invention employs a mode of foreground real-time data acquisition and background instant imaging processing and data management, so as to enhance real-time performance and reliability. Secondly, the technical implementation method realizes single point excitation in terms of hardware through connection of three charge amplifiers and three channels on the data acquisition plate; a data reception mode of simultaneous information reception of three points can carry out multiple point information reception without excitation and increase working efficiency effectively. Besides, the invention employs a multichannel switching apparatus to solve a problem of mutual interferences among sensor channels.

The invention discloses a method and device for reducing coexistence equipment mutual interference of networks of adjacent frequency bands. The method comprises the steps that the signal quality of a first signal is monitored; under the situation that the signal quality is lower than a preset quality threshold value, the working state of a second signal is adjusted so that equipment manual interference can be reduced, wherein the first signal and the second signal are the signals, with mutual interference, of the adjacent frequency bands. The method is simple and easy to implement, the influences caused by manual interference can be effectively reduced when the method and device are in use, and the problem that in the prior art, a simple and common method for eliminating coexistence equipment manual interference of networks of adjacent frequency bands does not exists is solved.

The invention discloses a control method for preventing mutual interference of multimode terminals. The method comprises the following steps: a first-mode state based on time division multiple access is obtained, if in emission state, a second-mode receiving path is disconnected; and then when the first mode is separated from the emission state, the second-mode receiving path is restored. In the invention, as the first mode based on time division multiple access is in emission state, the second-mode receiving path is disconnected; besides, as a one-time emission period of the first mode based on time division multiple access is a time slot, the time is short and the second mode has an own mechanism for correcting errors, thus having no influence to the demodulation of the second mode under the premise of solving the mutual interference problem, and effectively solving the problem of multimode mutual interference. The invention provides a multimode terminal for preventing mutual interference.

The invention discloses an airplane radiofrequency device electromagnetic compatibility analysis method based on time availability. In the airplane radiofrequency device electromagnetic compatibility analysis method, a time availability value is compared to an electromagnetic compatibility required value so as to judge whether design of airplanes meets requirement of electromagnetic compatible operation of various devices or not. The airplane radiofrequency device electromagnetic compatibility analysis method includes calculating time availability of different interference radiofrequency devices by a work time slot distribution method based on a binary-tree anti-collision algorithm, and evaluating whether the different interference radiofrequency devices meet normal service requirements or not during a complete simulated flying analysis process according to the time availability.

The invention discloses an electrochromic display device and a manufacturing method thereof. The electrochromic display device comprises a first base plate, a second base plate and an electrochromic fluid filled between the first base plate and the second base plate. Each of the first base plate and the second base plate comprises a substrate and a pixel electrode layer. The first base plate is provided with a plurality of grooves, and the electrochromic fluid is filled in the grooves isolately. Since the electrochromic fluid is filled in the grooves arranged on the first base plate and isolated in the grooves of each pixel area, crosstalk between adjacent pixels can be avoided, and performance of the electrochromic display device is improved.

The present invention relates to a preparation method of a triple inactivated vaccine for the prevention of H9 subtype newcastle disease, infectious bronchitis and avian influenza, which is characterized in that: the content of the using NDVLaSota stain virus liquid is 10 to 22 percent, the content of IBVM41 stain virus liquid is also 10 to 22 percent and the content of the AIVHL stain virus liquid is 8 to 15 percent; the present invention uses the concentration and inactivation methods; the white oil adjuvant and the immune auxiliaries of Tween, Span and aluminum stearate are added to prepare the triple inactivated vaccine; the present invention realizes the multiple vaccine prevention and achieves the purpose of prevention a plurality of diseases by one needle, which can be used for greatly developing the husbandry, so as to benefit the mankind and improve the living standard of the people.

The invention discloses a multi-antenna radio frequency circuit and a radio-frequency signal processing method. The radio frequency circuit at least comprises a first antenna, a first radio-frequency signal processing circuit, a second antenna, a second radio-frequency signal processing circuit, a first transceiver, and a second transceiver. The first antenna and the first radio-frequency signal processing circuit are connected; the second antenna and the second radio-frequency signal processing circuit are connected; the first transceiver connected with the first radio-frequency signal processing circuit and the second radio-frequency signal processing circuit is used for outputting a first frequency band signal in the first kind of radio frequency signals to the first radio-frequency signal processing circuit and outputting a second frequency band signal in the first kind of radio frequency signals to the second radio-frequency signal processing circuit; and the second transceiver connected with the second radio-frequency signal processing circuit is used for outputting a second frequency band signal in the second kind of radio frequency signals to the second radio-frequency signal processing circuit.

A method for exciting the sensing coils of multi-channel respiration volume tracer is disclosed, which features that a HF signal exciting source is used to periodically apply the HF exciting pulses to the sensing coils of all channels in time-sharing mode. Its apparatus is composed of an exciting source, timing circuit, multi-channel pulse switch circuit controlled by timing signals and connected to the said sensing coils, and signal conditioning circuit connected to the outputs of sensing coils and the multi-channel switch circuit. Its advantages are low electric consumption, high exciting power and low interference.

The invention discloses a self-adaptive frequency-selection communication method based on a multi-frequency-hopping radio network in a VHF frequency band. The self-adaptive frequency-selection communication method comprises the following steps: in a one-time frequency plan, a frequency table including 256 frequency points is used by N subnets having the same time reference; the 256 frequency points are divided into A sub-segments; sub-segment division of the frequency table is carried out; and various subnets each generate a random number X satisfying uniform distribution in an interval [0, 255] through a random sender, and then perform linear circular deviation by taking 8 as the unit based on the subnet number n of various subnets, so that position numbers of frequency-hopping frequency points in the frequency table are generated. By means of the frequency-selection mechanism generation manner, the communication orthogonality between different subnets in any communication state still can be kept; therefore, the self-adaptive frequency-selection communication function is realized; and furthermore, mutual interference between different subnets can be avoided.

This invention discloses a method for accessing intelligent card by multitask, which hands all operations interacted with the intelligent card over a guardship process and the user process sends operation request to the guardship process in a message interaction mode to access the intelligent card indirectly, and the guardship process monitors the operation request information from the user process and plugs it into the message queue on one hand, and obtains operation request information from the message queue on the other used in the interaction with the intelligent card and transmits the final result to the related user process, in which, the operation request includes a reset request and a read-write request, which processes messages one by one deponding on the guardship process to guarantee that every message is processed without interference.

The invention discloses a communication and positioning integrated dual-mode airborne system based on a Beidou satellite and belongs to the technical field of communication. The system comprises an antenna, a host and a hand-held terminal, wherein the antenna receives Beidou satellite signals and sends the Beidou satellite signals to the host to complete baseband signal processing, positioning resolving and message information processing, and crew personnel complete editing, storing, sending and receiving of Beidou short messages through the handheld terminal. According to the method, the optimal dynamic threshold and equipment receiving sensitivity are ensured so that the communication success rate reaches more than 98%.

The invention discloses a multi-functional setting ball base and a using method thereof. The multi-function setting ball base comprises an upper connecting head, a lower connecting head, a setting ball base body and a check valve, wherein the setting ball base body and the check valve are arranged in the upper connecting head and the lower connecting head. A balancing hole is formed in the upper connecting head. The lower connecting head is provided with a liquid inlet throttling channel. The lower connecting head is internally provided with a sliding switch used for controlling opening and closing of the liquid inlet throttling channel. The bottom of the lower connecting head is provided with a guiding pressure hole. The upper connecting head and the lower connecting hole are connected through threads. The multi-functional setting ball base is arranged at the bottom of a CO2 driving injecting pipe column which adopts a permanent packer so as to achieve down-hole well shutdown operation. According to the multi-functional setting ball base, oil casing pressure balancing can be achieved during down drilling, after drilling tools are set well, the packer can be set-sealed, and the down-hole well shutdown operation can be achieved during pulling.

The invention discloses a mobile terminal sharing a radio frequency antenna. The mobile terminal comprises a printed circuit board (PCB), wherein the PCB is provided with a distance sensing module, aradio frequency module, a filter module that is used to block signals required for the operation of a non-distance sensing module, and a radio frequency antenna module that is used to produce a resonant frequency required for the operation of the distance sensing module and the resonant frequency required for the operation of the radio frequency module, the distance sensing module is connected with the radio frequency antenna module through the filter module, and the radio frequency antenna module is also connected with the radio frequency module. According to the mobile terminal disclosed bythe invention, the radio frequency antenna module that can produce high-frequency and low-frequency resonant frequencies and the filter module are adopted, and thus the distance sensing module and theradio frequency module can share one antenna without affecting each other, the radio frequency performance and distance sensing effect can be simultaneously met by sharing one antenna, and the problem that serious mutual interference is caused as two antennae are close to each other and are both made of metal materials in existing technologies can be solved.

The invention relates to an on-line monitoring system for a high voltage handcart switch cabinet. The on-line monitoring system comprises a temperature acquisition terminal, a display instrument terminal, and working power supplies, wherein the working power supplies are respectively corresponded to the temperature acquisition terminal and the display instrument terminal. The temperature acquisition terminal is mainly composed of temperature sensors, a one-ship microcomputer and a transmit-receive unit. The six temperature sensors are uniformly distributed and arranged at moving contacts or static contacts of a high voltage handcart switch cabinet and one environmental temperature sensor is arranged in a circuit breaker room of the high voltage handcart switch cabinet. Besides, the display instrument terminal is mainly composed of a reception unit, a display instrument terminal one-ship microcomputer and a display. High potential terminals of the sensors and a ground potential terminal of the display are connected in an isolated transmission mode. Therefore, the on-line monitoring system has characteristics of accurate measurement and interference resistance.

The invention discloses a parking space detection device and detection method based on an NB-IoT technology. The device comprises an RFID antenna module used for detecting the electronic tag, an RFIDcard reader module used for adjusting the power of the RFID antenna module so as to control the identification range of the RFID antenna module, identifying the parking space and the vehicle information, a geomagnetic sensor module used for detecting whether a vehicle enters or leaves a parking space or not, a single-chip microcomputer used for storing the data information and controlling the NB-IoT module to perform data transmission, and an NB-IoT module used for sending the data information outputted by the single-chip microcomputer to the cloud platform. According to the invention, the RFID card reader module is matched with the geomagnetic sensor module, so that the vehicle identification rate is improved; by adopting the RFID circularly polarized antenna, the antenna identification range is enlarged, the interference of the metal chassis of the automobile on signal transmission can be effectively overcome, the electronic tag is further effectively detected, meanwhile, the identification range of the antenna is controlled by adjusting the transmitting power of the card reader, and the problem of mutual interference among parking spaces in the parking process is effectively solved.

The invention discloses a high-integration multi-channel tile type T / R assembly and an arrangement method. The high-integration multi-channel tile type T / R assembly is in a square shape. A bottom plate, a cover plate, a front plate, a rear plate, a left plate and a right plate are used as walls to form a mounting cavity; the method is characterized in that n groups of first connectors are mountedon the bottom plate, wherein each group of first connectors consists of a receiving connector and a transmitting connector, each group of first connectors are respectively vertical to the bottom plate, a group of second connectors are arranged on the cover plate, the second connectors are combination ports for receiving output and transmitting input, a through groove is arranged on the cover plate, and three layers are arranged in the mounting cavity. According to the invention, multiple radio frequency channels are integrated to realize miniaturization, the profile height of the active phased-array antenna can be effectively reduced, and a heating device in the T / R assembly clings to the heat sink to achieve the purpose of rapid heat conduction.

The invention discloses a radar anti-interference antenna, method and system, and a vehicle. The radar anti-interference antenna includes a transmitting antenna and a receiving antenna, wherein the transmitting antenna includes a first transmitting antenna, a second transmitting antenna, and a Lambda / 4 directional coupler; the polarization directions of the first transmitting antenna and the second transmitting antenna are orthogonal to each other; the Lambda / 4 directional coupler further includes a first input port, a second input port, a first output port, and a second output port; the firstinput port and the second input port are isolated from each other; the first output port is connected to the first transmitting antenna, and the second output port is connected to the second transmitting antenna; the receiving antenna includes a first receiving antenna and a second receiving antenna; the polarization directions of the first receiving antenna and the second receiving antenna are orthogonal to each other; the first transmitting antenna and the first receiving antenna have the same polarization direction; and the second transmitting antenna and the second receiving antenna havethe same polarization direction. The radar anti-interference antenna solves the problem of mutual interference between vehicle radars.

The invention discloses a router channel setting method. The router channel setting method comprises the steps of obtaining initialization setting information and information of a routing hotspot within a preset range of a to-be-set router; determining an optimal channel value of the to-be-set router based on the initialization information and the routing hotspot information; and setting a workingchannel value of the to-be-set router as an optimal channel value. The invention also discloses a router channel setting device and a computer readable storage medium. The router channel setting method solves a problem of mutual interference during the working time of the router caused by near distance of the router and surrounding routing hotspot channels, and improves the routing transmission efficiency.

The invention provides a wireless intelligent centralized control system with a code matching function. The wireless intelligent centralized control system with the code matching function comprises a wireless code matching centralized control module and a control terminal. The wireless code matching centralized control module comprises an MCU (Micro Control Unit) control module, a wireless receiving module which is used for receiving control signals which are transmitted by the control terminal and transmitting the control signals to the MCU control module, a first rotary encoder which is used for selecting an adjustment local area, and a second rotary encoder which is used for selecting a plurality of LED (Light Emitting Diode) lamps in the adjustment local area, wherein the control terminal is provided with a third rotary encoder which is used for performing code matching with the first rotary encoder and / or the second rotary encoder. The wireless intelligent centralized control system with the code matching function has the advantages that since two groups of rotary encoders are adopted for code matching, the range of the LED lamps which can be controlled by a certain control terminal can be freely determined, the problem of mutual interference among remote controllers is solved, the control of using a remote control to control various LED lamps can be effectively realized, and the wireless intelligent centralized control system with the code matching function also has the advantages that the penetrability is strong, the anti-interference capacity is strong and the control distance is long.

The invention discloses a domestic air purifying device comprising a shell. The bottom of an inner cavity of the shell is fixedly connected with a first fan through a base. A suction opening is formed in the left side of the first fan. A dust filtering layer is fixedly connected to the inner side of the suction opening. An air outlet pipe is fixedly connected to the right side of the first fan. A first insulation plate is arranged above the first fan and fixedly connected to the wall of the inner cavity of the shell. The end, away from the first fan, of the air outlet pipe penetrates through the first insulation plate and fixedly connected to an air pipe. A sealing ring is fixedly connected to the connecting position of the air outlet pipe and the first insulation plate. Air jetting heads are fixedly connected to the surface of the air pipe. A water outlet hole is formed in the connecting position of the first insulation plate and the left side wall of the inner cavity of the shell. According to the domestic air purifying device, by efficiently utilizing purifying liquid, the efficient purifying effect is achieved, and the problem that an existing air purifying device is poor in purifying effect is solved.

The invention relates to a medium-short-wave radio broadcast signal detection method which is suitable for a power line carrier communication system in medium-low-voltage power distribution network environment. The power line carrier communication system comprises power line carrier communication equipment and a power line channel. The method includes that the power line carrier communication equipment collects noise of the power line channel by means of differential-mode coupling, time-frequency domain analysis is performed through short-time Fourier transformation, an average value of noise strength of each frequency point within sampling time is calculated, and whether medium-short-wave radio broadcast signals enter or not is detected finally on the basis of a judgment threshold. The medium-short-wave radio broadcast signal detection method is suitable for medium-short-wave radio broadcast signal detection of power line carrier communication systems of medium-low-voltage power distribution networks within a frequency range of 500kHz-30MHz.

The invention discloses a broadband notch conical beam antenna, which comprises a circular metal floor, a circular dielectric substrate and a metal cone, wherein the metal cone is inversely placed inthe center of the circular metal floor, the top end of the metal cone is connected with the lower surface of the circular dielectric substrate, and a circular radiation patch is printed on the upper surface of the circular dielectric substrate; the circular radiation patch is connected with the circular metal floor through four short-circuit cylinders, four load patches are uniformly arranged on the surface of the circular radiation patch, coupling patches which are in one-to-one correspondence with the load patches and are mutually coupled are arranged at the positions of the load patches, and each coupling patch is connected with the circular metal floor. Four metal parasitic cylinders uniformly arranged on the surface of the circular metal floor are also arranged. The antenna is compactin structure and reasonable in design, has the advantages of broadband and miniaturization, can improve the precision of directional diagram measurement of the multi-rotor unmanned aerial vehicle, and avoids mutual interference between working signals of the multi-rotor unmanned aerial vehicle and a probe antenna.

The invention discloses a circuit breaker with an online over-travel monitoring function and a monitoring method thereof. The circuit breaker comprises a monitoring device (1) arranged on an insulating tension pole of a high-voltage vacuum circuit breaker, and the monitoring device (1) carries out data exchange with a control device (2) in a wireless transmission mode; the control device (2) is used for receiving data from the monitoring device (1), displaying a monitored over-travel on a display screen, and comparing the monitored over-travel with a preset numerical value. The monitoring method comprises the following steps that: the monitoring device (1) transmits a monitored over-travel signal to the control device (2) by a wireless transmission circuit (5); then, after the monitored over-travel signal is demodulated by a control processor, the obtained signal is displayed by a display circuit (7), or an alarm signal is sent out by an alarm control loop (8). The circuit breaker with the special structure can be used for detecting the over-travel of a vacuum circuit breaker in real time, thereby timely avoiding problems caused by the undersized over-travel of the vacuum circuit breaker, and reducing the loss.

The invention discloses a correction method for a capacitive material level sensing device. The method is applied to measurement of a drum tank. The correction method comprises following steps: generating a measuring signal by a measuring signal generation circuit to measure the drum tank; transmitting a sensing signal to a control unit by a sensing circuit based on a measuring result measured by the measuring signal; determining whether the sensing signal is within the effective range by a control unit according to the sensing signal; setting a total capacitance value corresponding to the sensing signal by the control unit as measuring reference value if the control unit determines that the sensing signal is within the effective range; and controlling the measuring signal generation circuit by the control unit to adjust measuring frequency of the measuring signal if the control unit determines that the sensing signal is not within the effective range. The method is capable of automatically correcting the capacitive material level sensing device.

The invention discloses a novel receiver device suitable for a wireless information and energy simultaneous transmission system. The novel receiver device comprises a receiving antenna, a coupling isolation module, a filtering module, a phase shift module, a rectification module, an information decoding module and a battery; the coupling isolation module comprises an input port, a straight-through port, a coupling port and an isolation port; the filtering module comprises a power filtering module and a communication filtering module; the output port of the receiving antenna is connected with the input port of the coupling isolation module; the power filtering module is respectively connected to the straight-through port and the isolation port; the communication filtering module is connected to the coupling port; the communication filtering module is connected with the information decoding module; the phase shift module is respectively connected with the power filtering module and the rectification module, and the rectification module is connected with the battery. According to the invention, the problem of mutual interference between the rectification subsystem and the information decoding subsystem of the receiving end of the wireless information and energy simultaneous transmission system is solved, and the overall efficiency and stability of the system are improved.

The invention discloses a gene chip for integrated detection and an on-substrate amplification method. The on-substrate amplification method comprises the following steps: (1) fixing specific nucleic acid primers on the substrate; (2) placing the substrate, on which the specific nucleic acid primers are fixed, in an amplification tube; (3) adding prepared a gene extract to be detected and an amplification system to the amplification tube; (4) placing the amplification tube in a gene amplification instrument for amplification; (5) after completion of the gene amplification, detecting fluorescent signals on the substrate so as to acquire genetic information. In the on-substrate amplification method, the general step of nucleic acid hybridization is removed, the benefits are greatly increased, and the cost is reduced; the specific nucleic acid primers are fixed on the substrate, and then the specific nucleic acid primers and the substrate are placed in the amplification tube for on-substrate PCRs (Polymerase Chain Reactions), so that the PCR reactions can be realized separately and the problem that primers interfere with one another during multiple PCRs can be solved; multiple pieces of genetic information can be detected integrally at the same time, and contamination, which can be generated in the amplification process and the product transfer process, is avoided; the used instrument is simple and universal, so that a common PCR instrument and a fluorescence microscope can complete the detection.

The invention discloses a depth camera module, a mobile terminal and a depth camera module interference processing method. The depth camera module comprises an optical pulse sending module, an opticalpulse receiving module, a first polarization dial module and a second polarization dial module, the first polarization dial module and the optical pulse sending module are coaxial and opposite, the first polarization dial module is arranged outside the optical pulse sending module, the first polarization dial module comprises a first polarizer and a first drive component, the first drive component is arranged in the middle of the first polarizer, the first drive component drives the first polarizer to rotate, the second polarization dial module and the optical pulse receiving module are coaxial and opposite, the second polarization dial module is arranged outside the optical pulse receiving module, the second polarization dial module comprises a second polarizer and a second drive component, the second drive component is arranged in the middle of the second polarizer, and the second drive component drives the second polarizer to rotate.

The invention belongs to the field of space product application and particularly relates to a hoisting device. The hoisting device comprises a crossbeam, a hoisting connecting piece, a sliding sleeve,a right stop block, a screw, a nut and a left stop block. The crossbeam is of a hollow structure, the left stop block and the right stop block are contained in the two sides in the crossbeam, the nutis in threaded connection with the screw, the nut and the screw are contained in the crossbeam together, and the two ends of the screw are rotationally connected with the left stop block and the right stop block; the crossbeam is sleeved with the sliding sleeve connected with the nut and the hoisting connecting piece, and through rotation of the screw, the nut can drive the sliding sleeve to conduct reciprocating motion on the crossbeam; and both the left stop block and the right stop block are connected with coupling screws located outside the crossbeam, and the coupling screws on the two sides are connected with a space product. By the adoption of the hoisting device, product hoisting adjustment can be convenient, in the horizontal movement process, the accuracy in the vertical direction is not changed, and the problem of mutual interference generated in multi-directional repeated adjustment in the general assembly process of the product is solved.