53results about How to "Power consumption advantage" patented technology

The invention discloses a method for treating radioactive wastewater. The method for treating the radioactive wastewater comprises the steps of firstly carrying out reverse osmosis treatment on the radioactive wastewater, then enabling the radioactive wastewater to enter a continuous electrodeionization unit to be treated, and further removing radionuclide so as to enable treated wastewater to reach discharge requirements; and respectively filling different mixed ion exchange resin in a plain water chamber and a thick water chamber in a continuous electrodeionization membrane stack of the continuous electrodeionization unit, wherein mixed ion exchange resin filled in the plain water chamber comprises, by volume ratio, 30%-60% of strong-acid cation exchange resin, 40%-60% of strong-base anion exchange resin, and 0%-30% of weak-base anion exchange resin, mixed ion exchange resin filled in the thick water chamber comprises, by volume ratio, 20%-50% of strong-acid cation exchange resin, and the balance strong-base anion exchange resin. A weak dissociation polymer portion is used for improving selectivity of continuous electrodeionization membrane stack to trace amount radionuclide, radionuclide with extremely concentration can be effectively removed, and the method for treating the radioactive wastewater ensures that the final discharged water satisfies the discharge requirements.

The invention provides a small-sized multifunctional online sample optical detection room which comprises a circulating detection pool, a constant-temperature ultrasonic water tank and an ultrasonic transducer, wherein the circulating detection pool is positioned in the constant-temperature ultrasonic water tank; distilled water is filled in the constant-temperature ultrasonic water tank; the lower 2 / 3 part of the circulating detection pool is submerged in the distilled water; and the ultrasonic transducer is arranged at the bottom of the constant-temperature ultrasonic water tank and connected with an ultrasonic generator. In the small-sized multifunctional sample detection room provided by the invention, an ultrasonic cleaning technique is used as reference; the circulating detection pool is installed in the small-sized ultrasonic water tank; the cleaning of the circulating detection pool and the stirring of the sample reaction system in the circulating detection pool are realized by utilizing an ultrasonic cleaning and stirring technique; and simultaneously, because an ultrasonic water bath technique is adopted, the water bath constant temperature of the circulating detection pool can be realized, the detection room has the three functions of stirring, cleaning and constant temperature of the circulating detection pool, and the structure of the detection room is simplified.

A transceiver for orthogonal frequency division multiplex communication has a transmitter module (1) and a receiver module (2). The transmitter (1) has an I-path (3) and a Q-path (4) to receive signals on a number of subcarriers provided by a signal generator (9). The receiver module (2) has a receiver I-path (7) and a receiver Q-path (8) to deliver signals to a processor (15). IQ imbalance is calculated for each of the transmitter and receiver by the signal generator sending a sample signal (XI(k), XQ(k)) over a one of the transmitter paths. The signal is then applied to one or each of the inputs to the receiver paths (7,8) to generate receiver output signals YI(k), YQ(k), RQ(k). The processor (15) is responsive to the output signals to calculate the transmitter and receiver IQ imbalance for that subcarrier. A calibrator (19) and compensator (20) are responsive to the calculated IQ imbalance to correct or compensate each subcarrier of the transceiver band.

The invention discloses a relying-free positioning and navigation method and device and a storage medium. The method comprises the following steps: cooperatively constructing a high-precision navigation map based on synchronous positioning and mapping and an inertial navigation system; dividing the high-precision navigation map into a plurality of map blocks through a multi-dimensional space dichotomy algorithm, and encoding the map blocks to obtain codes in each map block, the number of point clouds and central position coordinates; performing secondary partitioning and encoding on each blockin the processed high-precision navigation map based on a nearest neighbor search method to obtain grids with higher resolution, and constructing indexes and neighborhood traversal to perform point cloud registration; and performing adaptive positioning on the point cloud registration result by adopting a multi-source fusion algorithm based on extended Kalman filtering to obtain an accurate positioning result. The key problems of map storage and loading, point cloud registration algorithm acceleration and the like in a large-scale scene are solved, and high-precision no-support positioning isrealized; and the drivable area and range of the unmanned driving system are improved.

The invention relates to a two-dimensional pupil-expanding binocular waveguide near-eye display device and augmented reality display equipment, the two-dimensional pupil-expanding binocular waveguide near-eye display device comprises an optical-mechanical system for loading and outputting an image and emitting the collimated and corrected image to a coupling-in diffraction optical element group; the coupling-in diffraction optical element is formed by stacking and compounding a first polarization body holographic grating and a second polarization body holographic grating so as to be coupled into the left-hand circularly polarized light beam and the right-hand circularly polarized light beam respectively; the vertical pupil expanding optical waveguide is used for carrying out light ray expansion on the left-handed circularly polarized light beam and the right-handed circularly polarized light beam in the vertical direction so as to couple out multiple light rays to the glass substrate; the total reflection mirror deflects the light emitted by the vertical pupil-expanding optical waveguide at a preset angle and then emits the light into the glass substrate at a target angle capable of meeting a total reflection condition; the glass substrate is used for transmitting the light emitted by the vertical pupil-expanding optical waveguide to the coupling-out grating in a total reflection manner; and the coupling-out grating is used for coupling out the light rays to the left eye and the right eye of a person respectively.

The invention provides a wireless data communication method based on an intelligent mobile phone with a camera. A lighting device is used as an information transmitting source, and an information receiving source is the intelligent mobile phone with the camera. Information receiving steps include the procedures of starting a camera communication function, detecting a hand-shaking signal through the camera, building a data communication channel if the hand-shaking signal is legal, detecting a transmission signal through the camera after the data communication channel is built, storing or decoding the detected signal, transmitting a stopping signal through the information transmitting source after data transmission is finished, and closing the data communication channel after the camera detects the stopping signal. In terms of the information receiving steps, the camera detects whether an average grey value of images obtained in a set time period is larger than a preset threshold value or not and judges data information. Compared with an existing Bluetooth data transmission mode, the method has an obvious advantage in power consumption when information amount is little.

The invention discloses a micro-ring delay matrix. The micro-ring delay matrix comprises an array consisting of N*M upload / download (add / drop) type micro-ring units, wherein each micro-ring unit comprises at least one micro-ring resonator, an input optical waveguide, an output optical waveguide, a coupling coefficient adjusting electrode and a resonance wavelength adjusting electrode, the input optical waveguide and the output optical waveguide are respectively coupled with the micro-ring resonator, the coupling coefficient adjusting electrode is used for adjusting the coupling coefficients between the input optical waveguide and the micro-ring resonator and between the output optical waveguide and the micro-ring resonator, and the resonance wavelength adjusting electrode is used for adjusting the resonance wavelength of the micro-ring resonator. The M upload / download type micro-ring units in the same row share one input optical waveguide, and the download ends of the M upload / downloadtype micro-ring units in the same row are coupled into one path to serve as an output end of the row. The invention further discloses a microwave photon integrated multi-beam phased array chip and system. Theoretically, there is no beam inclination effect, the working bandwidth is wider, the working structure is more compact, the control is more flexible, and the cost is greatly reduced.

The invention relates to a device and method for controlling satellite attitudes through a liquid circuit valve, relating to the device and method for controlling satellite attitudes, and solving the problem of bad effect of control of satellite attitudes caused by serious bearing abrasion and poor heat radiation and lubrication in the traditional device adopting flywheel-type momentum interchange to control the satellite attitudes. In the device provided by the invention, a group of satellite attitude control units are respectively installed in the directions of three axles of a satellite body. The method provided by the invention comprises a step of controlling the quantity of flow entering a forward circuit and a backward circuit through a circuit control valve or a forward / reverse control valve so as to realize the control of the satellite attitudes. The device and method provided by the invention are suitable for the control of the satellite attitudes.

The invention discloses a communication system, relates to the technical field of aerospace, and mainly aims to increase the rate of data transmission in an aircraft network while the cost is reduced.The communication system comprises a satellite communication system and a ground station communication system, wherein the satellite communication system comprises multiple satellites; each satellitecarries an intersatellite laser communication terminal device for intersatellite communication, a satellite-aircraft laser communication terminal device for satellite-aircraft communication, and a satellite-ground station laser communication terminal device for satellite-ground station communication; communication between the multiple communication satellites is achieved through laser links basedon the intersatellite laser communication terminal device; the ground station communication system comprises a ground station laser communication terminal communicating with the satellites; the ground station laser communication terminal comprises a ground station-satellite laser communication terminal device, and communicates with the satellites through laser links based on the ground station-satellite laser communication terminal device. The communication system is mainly applied to data transmission of an aircraft.

The invention discloses an ONU (Optical Network Unit) discovery ranging method in a TDM (Time Division Multiplexing) PON (Passive Optical Network). A ONU discovery ranging method comprises the following steps: an OLT (Optical Line Terminal) broadcasts a discovery request message to online and newly added ONUs; after receiving the discovery request message, the newly added ONU sends a discovery response message to the OLT through a topping mechanism; after receiving the discovery response message, the OLT determines a corresponding newly added ONU according to the discovery response message, and sends a ranging request message to the newly added ONU; after receiving the distance measurement request message, the newly added ONU replies a distance measurement response message through a top adjustment mechanism; and after the OLT receives a distance measurement response message, the distance between the newly added ONU and the OLT is calculated. According to the method, a baseband re-modulation optical topping technology is used, technologies such as optical power superposition and the like are adopted, and the function of multipoint-to-point transmission is achieved. The invention also provides a corresponding ONU discovery ranging system in the TDM PON.

The invention relates to a Vcm-based ultra-low power consumption SAR ADC switch switching structure and a switch switching method thereof. The circuit comprises a first capacitor array, a second capacitor array, a comparator, two change-over switch groups and two sampling switches; capacitor top plates DACP and DACN of the first capacitor array and the second capacitor array are respectively connected with the comparator. The DACP and the DACN are respectively connected with a common mode level Vcm through two sampling switches; bottom plates of capacitors in the first capacitor array and thesecond capacitor array are connected with a reference level Vref, a ground level Vss, the common mode level Vcm and an input level Vip or Vin through a first change-over switch group and a second change-over switch group; the comparator comprises a dynamic preamplifier and a dynamic latch which are connected in sequence, the two input ends of the dynamic preamplifier serve as the in-phase input end and the anti-phase input end of the comparator respectively, and the output end of the dynamic latch serves as the output end of the comparator. Compared with a traditional capacitor array, the highest-order weight capacitor is saved, and compared with a capacitor array switch switching structure for top plate sampling, better ADC precision can be achieved.

The invention relates to a lithium battery set protection system, particularly relating to an intelligent protective device of an electric vehicle lithium battery set. The intelligent protective device comprises a microprocessor unit 1, a digital isolation unit 2, a battery detection unit 3, a lithium battery set 4, a keyboard 5, a display screen 6 and a WIFI serial port module 7; the battery detection unit 3 is connected to the lithium battery set 4 for detecting voltage and temperature of a battery cell in the lithium battery set 4, processing detected parameters and transmitting the parameters to the microprocessor unit 1 through the digital isolation unit; the keyboard 5 performs man-machine conversation with the microprocessor unit; the display screen 6 is connected to the microprocessor unit 1 to display related information parameters; and the WIFI serial port 7 is connected to the microprocessor unit 1, and the related information of the lithium battery set can be checked through the mobile phone.

When cancelling interference in a radio communication device for repeatedly decoding / receiving a spatially multiplexed signal, if a symbol of erroneous judgment is contained or if an error factor caused by a propagation channel estimation error or hardware error (carrier frequency error, sampling frequency error) is contained, reception characteristic is degraded by an interference signal component. The radio communication device (100) includes an error estimation unit (13) for estimating an error of a replica signal during interference cancelling and a weighting unit (14) for weighting likelihood information for a spatially multiplexed signal which is demultiplexed and multiplexed after the interference cancelling. Accordingly, even if an error of the replica signal during interference cancelling is contained, it is possible to obtain preferable reception characteristic.

The invention provides a super-long time history electrocardiographic recording system by wireless telemetery. The system comprises an electrocardiocorder, a data reader and a computer, wherein the electrocardiocorder comprises an electrocardio-electrode, an electrocardio-signal amplification module, an MCU (microcontrol unit), a Nand-flash memory, a communication path control unit and a wireless radio frequency communication module; an interference conversion chip for converting USB (universal serial bus) to SPI (serial peripheral interface) is built in the data reader; the data reader is communicated with the electrocardiocorder through an SPI interface, and is communicated with the computer through an USB interface; the wireless radio frequency communication module communicates with a radio frequency receiving module through a RF (radio frequency) wireless radio frequency transmission and receiving circuit. The system is low in power consumption, high in system integrity, strong in operability and wide in application field, can be used for realizing constant 30-day super-long time electrocardiographic recording by virtue of the wireless telemetery, and has a remarkable clinical diagnosis meaning.

A method is provided for achieving SRAM output characteristics from DRAMs, in which a plurality of DRAMs are arranged connected in parallel to a controller in such a way as to be able to obtain SRAM output characteristics using the DRAMs, comprising a process in which data is output to an external device when a control signal for data reading has been input from the external device, by sequentially repeating a step in which the controller sends a data output state control signal to one DRAM and sends a refresh standby state control signal to the other DRAMs, the data is read and sent to the external device from the DRAM in the output state, and a refresh standby state control signal is sent to the DRAM which was in the output state while an output state control signal is sent to another DRAM and data is read out from the DRAM in the output state, and a step in which the controller sends a control signal for changing the output state to the refresh standby state.