181 results about "Ultra high frequency" patented technology

The invention discloses a piece placing sequence mistake proofing device which comprises a multi-dimensional sensing module, an intelligent control module, a reconfigurable positioning module, an execution intervention module, a block chain tracing module and a man-machine interaction module, and all the modules communicate through an industrial Ethernet. The multi-dimensional sensing module and the intelligent control module adopt a time-sensitive network protocol to guarantee the certainty of data transmission, the multi-dimensional sensing module integrates an AI vision assembly, an ultrahigh frequency radio frequency identification read-write unit and a polarized light detection assembly, and parallel acquisition and cross validation of cutting piece multi-dimensional information are realized through a time sequence synchronous triggering mechanism. According to the method, a full-dimensional recognition system can be constructed through cooperation of multi-modal sensing fusion and an intelligent algorithm to avoid a single detection blind area, multi-variety production requirements are adapted by relying on AI incremental learning and rapid remodeling design, non-tampering tracing of quality data is realized in combination with a block chain technology, and the method is suitable for mass production. And meanwhile, reliable operation of the system is guaranteed through redundancy control and emergency design.

1. The name of the design product: ultra-high frequency wireless radio frequency antenna (AZ-M21). 2. The use of the design product: antenna for radio frequency identification device. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a thin product, omitting the left view; the design product is a thin product, omitting the right view; the design product is a thin product, omitting the top view; the design product is a thin product, omitting the bottom view.

This application provides a method and apparatus for monitoring the ultra-high frequency partial discharge (UHF) oscillation characteristics of a hydro-generator, relating to the field of signal processing technology. The method includes: acquiring a partial discharge signal; preprocessing the partial discharge signal to obtain a preprocessed signal; extracting the first-order envelope of the preprocessed signal, and obtaining a second-order envelope based on the first-order envelope; and processing the pulses in the partial discharge signal based on the second-order envelope to obtain a processed partial discharge signal. The implementation provided in this application better captures subtle changes and attenuation behavior in the partial discharge signal, improves the accuracy of partial discharge signal processing, and meets the requirements for rapid and real-time monitoring of partial discharge and resistance to interference in complex electromagnetic environments.

The application provides a substation ultra-high frequency RFID reading and writing device and a reading and writing method, and belongs to the technical field of RFID. The substation ultra-high frequency RFID reading and writing device comprises a reader, an antenna, a radio frequency cable, a first power divider, a second power divider and an amplifier. One end of the radio frequency cable is connected to the reader, and the other end is connected to the total port of the first power divider. The first power divider and the second power divider are both one-to-two power dividers. The amplifier is connected in series between one branch port of the first power divider and one branch port of the second power divider, and the other branch port of the first power divider and the other branch port of the second power divider are directly connected. The total port of the second power divider is connected to the antenna. The application can compensate for the transmission loss in the radio frequency cable, improve the power of the radio frequency signal and the reading and writing distance of the reader, and flexibly arrange the antenna according to the field conditions and select a smooth signal transmission path.

The application discloses a novel ultrahigh frequency microwave radio safety penetration device, which comprises a microwave wireless signal transceiving link module, an ASIC hardware special automatic tracking countermeasure module and a power module; the power module is connected with the microwave wireless signal transceiving link module and the ASIC hardware special automatic tracking countermeasure module through circuits; the microwave wireless signal transceiving link module comprises a microwave wireless signal receiving link module, a microwave wireless signal transmitting link module and a microwave LO local oscillator link module; the microwave LO local oscillator link module is connected with the microwave wireless signal receiving link module and the microwave wireless signal transmitting link module. The application solves the problem that there is no similar targeted radio bottom layer safety depth scanning penetration tool on the market.

There is provided a plasma processing method comprising: continuously introducing electromagnetic waves into a chamber of a plasma processing apparatus, the electromagnetic waves being VHF waves or UHF waves, the electromagnetic waves being introduced into the chamber so as to form standing waves within the chamber along a lower surface of an upper electrode of the plasma processing apparatus; periodically applying a negative voltage to the upper electrode while performing said continuously introducing the electromagnetic waves; and supplying a processing gas into the chamber only during a period in which the negative voltage is applied to the upper electrode.

The utility model belongs to the field of GIS partial discharge detection, and particularly relates to an optical fiber ultrasonic-ultrahigh frequency composite sensor for GIS partial discharge detection, which comprises a cover plate, an ultrasonic sensor and an ultrahigh frequency sensor, the ultrasonic sensor comprises an induction optical fiber, an input connector and an output connector, the cover plate is provided with an annular groove, the induction optical fiber is fixed in the annular groove, and the output connector is fixed in the annular groove. Two ends of the sensing optical fiber are respectively connected with the input connector and the output connector, the input connector is used for inputting an external optical signal into the sensing optical fiber, and the output connector is used for outputting the optical signal in the sensing optical fiber to external detection equipment; the ultrahigh frequency sensor comprises an inductive probe, a pressing ring, a base and an N-type connector, the base is fixed on the cover plate, the pressing ring and the inductive probe are installed on the base, the inductive probe is mushroom-shaped and comprises a head part and a connecting part, and the connecting part sequentially penetrates through the pressing ring, the base and the cover plate and is electrically connected with the N-type connector; the problems that an existing composite sensor is low in measurement precision and sensitivity and poor in anti-interference capacity are solved.

A vehicle-based communication system supports wireless data exchange with a vehicle key using ultra-high-frequency (UHF) radio. A control unit of the vehicle transmits a first message to a communication control device, the message indicating a transmission power to be set for a transceiver. The communication control device sets the UHF transmission power based on the message and activates the transceiver to transmit a data packet containing user data to the vehicle key. A low-frequency ping may establish a receive window during which the vehicle key receives the data packet. The vehicle key stores the received data packet, optionally transmits a checksum to confirm proper reception, and may adjust its own UHF transmission power based on the received data. The vehicle may re-transmit the data packet when an incorrect checksum is detected. The system enables flexible, software-based adjustment of UHF transmission power for reliable communication with the vehicle key.

The invention provides a low-voltage equipment management system and method for a power distribution network. The low-voltage equipment management system for the power distribution network comprises a terminal sensing layer, an edge computing node and a cloud management platform. The intelligent sensing terminal at least comprises a voltage sensor, a current sensor, a temperature sensor and a vibration sensor; the RFID tag is an ultrahigh frequency passive tag and is used for writing equipment identity information; the Bluetooth gateway is used for collecting environment temperature and humidity and dust concentration data; the edge computing node comprises an embedded edge gateway for multi-interface communication, a local database and an edge algorithm module; and the cloud management platform comprises a digital twinning engine for constructing a three-dimensional digital twinning body of the equipment, a health degree evaluation module, an operation and maintenance scheduling module and a visual interface. The invention provides a low-voltage equipment management system and method for a power distribution network, and aims to solve the technical problems of single data acquisition and high maintenance cost of low-voltage equipment in the prior art.

1. The name of the design product: data acquisition handheld terminal. 2. The use of the design product: for data acquisition handheld terminal equipment, data acquisition through reading and writing ultra-high frequency tags and bar code scanning. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

This invention discloses a river flow monitoring system and method based on ultra-high frequency side-scan radar. The data acquisition module is deployed on the riverbank to acquire multi-channel raw echo data required for river hydrological parameter inversion. The river flow monitoring cloud platform processes, analyzes, displays, and stores the data acquired by the data acquisition module, and sends corresponding instructions to the data acquisition module. This solution uses a database to correlate and store hydrological data, meteorological data, cross-sectional geometric data, and comparative measurement data in a time series manner, providing a solid data foundation for in-depth data mining, model optimization, and trend prediction. Furthermore, the data analysis considers the impact of complex tidal dynamic modulation in tidal river sections on river flow calculation. A tidal phase correction term is introduced into the index velocity method model, effectively eliminating the systematic bias caused by tidal dynamic modulation in the calculation.

Provided is a package device with a substrate integrated waveguide structure embedded therein. A package device according to an embodiment may include a substrate, a waveguide integrated into the substrate, and a semiconductor chip electrically connected with the waveguide, and the substrate, the waveguide, and the semiconductor chip may be integrated into the package device. Accordingly, the substrate integrated waveguide structure is embedded in an internal substrate of the package device, so that a signal transmission path is stably formed, minimizing signal loss and electromagnetic interference occurring in super-high frequency bands and enabling stable high-speed signal transmission.

The invention discloses a multi-dimensional signal collaborative mixed gas insulation electric power equipment fault diagnosis system, which comprises a multi-modal data acquisition module used for acquiring multi-modal data of GIS equipment, and the multi-modal data comprises a voiceprint signal, an ultrasonic signal, an ultrahigh frequency signal and physical parameters of insulation gas; and the abnormity analysis module is used for performing fusion diagnosis analysis based on the voiceprint signal, the ultrasonic signal, the ultrahigh frequency signal, the characteristic decomposition product three-ratio, the temperature, the density, the pressure and the mixing ratio of the insulating gas to obtain the fault type and the fault severity when the multi-modal data is abnormal. According to the method, multi-modal data monitored on line and components and contents of characteristic decomposition products detected off line are combined, and physical parameters and the components and contents of the characteristic decomposition products are utilized to make up for the accidental defect of electric signal capture, so that the defect of misjudgment possibly caused by only using instantaneous acoustoelectric signals is avoided; and the analysis of equipment fault types and severity is realized.

The invention discloses an article in-warehouse and out-warehouse identification method based on ultrahigh frequency RFID and double-antenna cooperation, is applied to the technical field of article in-warehouse and out-warehouse state judgment, and aims to solve the problems that an existing judgment technology based on computer vision is poor in environmental adaptability, low in dynamic processing capacity, high in cost and low in calculation efficiency. A single-antenna-based judgment technology has no direction identification capability, is weak in interference resistance and is limited in scene adaptation; according to the method, the failure is judged based on the double-antenna signal overlapping area of the state machine threshold value, and the state machine intelligent parameter threshold value adjusting and optimizing method based on supervised learning is innovatively introduced, so that the synchronous improvement of the article in-out warehouse judgment accuracy, the environment adaptability and the system response speed is realized.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a mobile unit (MU) may receive an ultra-high frequency (UHF) radio frequency identification (RFID) tag identifier that is uniquely associated with the MU. The MU may perform, responsive to receiving the UHF RFID tag identifier, one or more MU location operations. Numerous other aspects are described.

The invention belongs to the technical field of power equipment state monitoring, and discloses a cable partial discharge early warning device for electric quantity feature recognition, which comprises a multi-physical fusion sensing module, a signal processing module, a self-adaptive online verification module, an intelligent analysis module and a communication and early warning module. Signal processing and de-noising are carried out by collecting three-phase partial discharge current, ultrahigh frequency electromagnetic wave, temperature and micro-strain signals of a cable, and self-calibration of a detection channel is realized by using a self-adaptive online verification module. And the intelligent analysis module performs abnormal grade judgment and fault point positioning based on a multi-physical-quantity weighting confidence factor, supports double-end cooperative positioning, and optimizes a signal processing process through temperature and strain data. The communication module has multi-mode adaptive switching and cross-segment linkage functions. According to the invention, the accuracy, reliability and intelligent level of partial discharge monitoring are improved, and early warning and accurate positioning of the cable insulation state are realized.

A radio frequency front-end circuit includes a first diplexer, an extractor, and a second diplexer. First diplexer is coupled to an antenna for receiving a radio frequency signal and configured to separate radio frequency signal into a first signal within low, mid and high bands of a wireless wide area network and a second signal within an ultra-high band of WWAN. Extractor is coupled to first diplexer. Extractor includes two band pass filters and a band rejection filter. Two band pass filters are configured to extract two global navigation system signals within two global navigation system bands from first signal. Band rejection filter is configured to allow a third signal within the mid and high bands of WWAN in first signal to pass. Second diplexer is coupled to first diplexer and extractor and configured to combine second and third signals into a WWAN signal.

The invention relates to a method for scanning the presence inside a vehicle using a scanning device comprising at least one internal ultra-wideband transceiver module and one external ultra-wideband transceiver module able to locate a portable "hands-free" access equipment carried by a user, according to the invention, the device is equipped with ultra-high frequency communication means for communicating with the equipment, and the method implements the following steps: a) detecting the locking of the vehicle; b) for a predetermined duration: i) scanning the presence inside the vehicle with the internal module; ii) simultaneously transmitting to the equipment a request for detecting a U-turn of the user; iii) if a U-turn signal is received, stopping the scanning and locating the user with the two modules; iv) if a presence is detected inside the vehicle, stopping the scanning and transmitting a warning; c) when the duration has elapsed, if no U-turn signal has been received and if no presence has been detected, locating the user with the two modules.

The invention provides a production method of a silvered wire with a smooth mirror surface and a continuous-drawing, continuous-plating and continuous-wrapping cable, which adopts a continuous-drawing, continuous-plating and continuous-wrapping process method of performing continuous wire drawing, cleaning and polishing on a metal wire, performing continuous vacuum silver plating and directly and continuously wrapping an insulating layer to manufacture a plated wire with extremely low surface roughness. The surface of the wire has a bright and clean mirror surface effect, and the high-frequency signal transmission function is powerful, so that the ultra-high mirror surface bright and clean effect and continuous production of ultra-high frequency data conductor cables are realized, and the requirement of ultra-high frequency signal transmission is met.

1. The name of the design product: ultra-high frequency wireless radio frequency antenna (AZ-HR8D). 2. The use of the design product: antenna for radio frequency identification device. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a thin product, omitting the left view; the design product is a thin product, omitting the right view; the design product is a thin product, omitting the top view; the design product is a thin product, omitting the bottom view.

An ultrasound system includes an ultrasonic array having at least one ultrasonic element, wherein the ultrasonic array configured for transmitting analog ultrasound signals in ultra-high frequency above 25 MHz; an analog sampling recorder receiving the ultrasound signals in ultra-high frequency above 25 MHz and outputting an analog signal with a reduced frequency, wherein the analog sampling recorder will reduce the analog signal frequency; and an ultrasound subsystem coupled to the analog sampling recorder wherein the reduced frequency analog signal from the analog sampling recorder forms an analog front-end channel of the ultrasound subsystem.

The present application relates to the technical field of induction heating, in particular to an electromagnetic induction brazing process and device for manufacturing a spiral-welded pipe by using a layered composite metal strip, the electromagnetic induction brazing process and device for manufacturing a spiral-welded pipe by using a layered composite metal strip is a welding method using ultra-high frequency or high frequency, medium frequency induction current as a heat source, high frequency heating is suitable for welding thin-walled pipe fittings, the medium frequency induction brazing equipment can replace the backward preheating means such as oxyacetylene heating, coal oven heating, box-type electric furnace heating and resistance heating, and can be used as a preheating equipment before brazing, the cooperation of the two can greatly improve the product quality, effectively save more than 60% of electric energy, and improve the labor conditions.

The present invention provides a magnetic material composition for magnetic field amplification having excellent magnetic field amplification characteristics, and a magnetic material composition for ultra-high frequency absorption having excellent absorption characteristics. [Solution] The present invention relates to a magnetic material composition for magnetic field amplification and a magnetic material composition for ultra-high frequency absorption, comprising a rare earth-iron-based high-frequency magnetic powder containing rare earth elements R (wherein R is at least one selected from the group consisting of Y, La, Ce, Pr, Nd, Pm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Sm) and Fe, on which at least a portion of the surface is coated with a phosphorus compound, and a magnetic metal and / or metal oxide.

The invention relates to the technical field of particle accelerators, in particular to a high-precision scanning magnet suitable for low-field ultrahigh frequency. The scanning magnet comprises a magnet module provided with an iron core assembly and a coil assembly; the supporting module is provided with a supporting seat, a first supporting assembly and a second supporting assembly; the first supporting assembly and the second supporting assembly are respectively connected with the supporting seat in a sliding manner and are arranged along a straight line, the iron core assembly is fixed on the first supporting assembly, the coil assembly is fixed on the second supporting assembly, and the iron core assembly and the coil assembly are not in contact with each other. According to the invention, the structure of the scanning magnet is optimized, and different supporting assemblies are used for independently supporting the iron core assembly and the coil assembly, so that the iron core assembly can be prevented from being damaged by high-frequency vibration of the coil assembly under an ultrahigh-frequency operation condition, and the magnetic field precision of the scanning magnet can be improved; therefore, the scanning magnet can stably perform high-precision scanning on the particle beam for a long time.

The invention provides a double-RFID liquid leakage detection method and device based on multi-frequency feature fusion, and the method comprises the steps: enabling a pair of ultrahigh-frequency RFID tags to be parallelly, closely and fixedly disposed as a double-tag sensor, arranging a liquid absorption medium between the two tags, capturing leaked liquid, and amplifying the influence; constructing a liquid leakage sensing model based on the mutual inductance coupling effect between the antenna circuits adjacent to the tags; the frequency hopping characteristic in the EPC Gen2 protocol is utilized to uniformly analyze the phases of a plurality of label signals under multiple frequencies, and the characteristic with strong robustness is extracted; and fusing a plurality of extracted features, carrying out comprehensive analysis on feature vectors by adopting a decision tree classification model, and distinguishing real leakage, environmental interference and sensor static change. According to the method, the medium change caused by liquid leakage is sensed by utilizing the coupling characteristic of the adjacent RFID tags, the multi-frequency phase data is acquired by combining an RFID frequency hopping mechanism, and the high-precision detection of the liquid leakage state is realized by extracting the characteristics through linear fitting.

1. The name of the design product: ultra-high frequency wireless radio frequency antenna (AZ-UR85). 2. The use of the design product: antenna for radio frequency identification device. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a thin product, omitting the left view; the design product is a thin product, omitting the right view; the design product is a thin product, omitting the top view; the design product is a thin product, omitting the bottom view.

The invention provides a method for determining qualification or disqualification of an all-solid-state battery, which comprises the following steps of: stacking and pressing a cathode, an anode and a solid electrolyte layer, measuring the resistance of a battery cell in a high-frequency region and an ultrahigh-frequency region, and sorting the battery cell based on a measured value. Specific frequency windows (e.g., about 2-4 kHz or 30-70 kHz) and digital thresholds (e.g., resistance of 100-150 m [Omega] for high frequency regions, or resistance of 80-200 m [Omega] for ultrahigh frequency regions) are used as criteria for determining whether the battery complies with qualified requirements. A qualified cell may also exhibit an initial capacity that is at least 90% of its design capacity. The method may also include discarding or reworking unqualified pressed structures, and performing a further battery manufacturing step only on qualified cells to improve production efficiency and ensure a high quality final product.

A passive resettable temperature state recording device. The device is composed of a temperature monitoring device, a reset module device, an ultra-high frequency chip, an antenna and a substrate. The device mentioned in the invention is installed on the object to be monitored, and monitors whether the environmental temperature of the object exceeds the warning temperature. When the environmental temperature exceeds the warning temperature, the monitoring module device triggers the monitoring switch, and the switch state is irreversible under the condition of no external interference. The device mentioned in the invention works in the ultra-high frequency band. The monitoring device transmits the "over-limit" and "normal" signals to the ultra-high frequency chip, and then radiates the signals to the query equipment in the form of radio waves through the antenna. The device does not need power supply, and can obtain energy from the signals emitted by the query equipment, and transmit the on-off signals to the query equipment.

1. The name of the present design product: radio frequency antenna (1020C44-48). 2. The use of the present design product: for ultra-high frequency wireless radio frequency electronic tags. 3. The design points of the present design product: in shape. 4. The picture or photo that best indicates the design points: design 1 front view. 5. The present design product is a thin product, omitting the right view of design 1; the present design product is a thin product, omitting the left view of design 1; the present design product is a thin product, omitting the top view of design 1; the present design product is a thin product, omitting the bottom view of design 1; the present design product is a thin product, omitting the right view of design 2; the present design product is a thin product, omitting the left view of design 2; the present design product is a thin product, omitting the top view of design 2; the present design product is a thin product, omitting the bottom view of design 2. 6. Design 1 is designated as the basic design.