190 results about "Rf technology" patented technology

The invention discloses a warehouse safety management platform and method based on the wireless radio frequency technology, and relates to the technical field of monitoring analysis, and the method comprises the steps: collecting environment sensing data and radio frequency signal data, carrying out the three-dimensional space topology construction of a warehouse, generating a warehouse three-dimensional dynamic environment model, and carrying out the monitoring of the environment sensing data and the radio frequency signal data. Performing correlation analysis on temperature and humidity data in the environment sensing data and warehouse material attributes in the warehouse, generating material abnormal vibration trajectory data, and determining an environment parameter correlation matrix; inputting the environmental parameter incidence matrix and the material abnormal vibration trajectory data into a preset dynamic risk model for security threat probability assessment, generating an equipment abnormal operation characteristic spectrum, and outputting a warehouse regional risk grade distribution diagram; and fusing the warehouse regional risk level distribution diagram and the equipment abnormal operation characteristic spectrum, constructing a potential safety hazard identification optimization model, and pushing the model to a terminal to execute real-time safety early warning and equipment linkage management. The method has the effect of improving the safety management efficiency of the storeroom.

The invention provides a container supervision article verification method based on the radio frequency identification technology, and relates to the technical field of container supervision article verification based on the radio frequency identification technology, and the method comprises the steps: transmitting a wireless signal to a tag on the surface of an article through RFID equipment, and enhancing a received reflection signal through a low-noise amplifier, filtering environmental noise by using a band-pass filter, converting a filtered reflected signal into a time domain signal by using an analog-to-digital converter, and extracting frequency domain characteristics by using FFT (Fast Fourier Transform) so as to calculate a waveform characteristic index; establishing a historical fingerprint template library, storing a waveform characteristic index corresponding to each state, setting a dynamic similarity threshold value based on historical data distribution, screening out templates of which the Euclidean distance is smaller than the threshold value and which belong to the same state as candidates, and if the candidate templates are not empty, selecting the state corresponding to the template of which the Euclidean distance is minimum as a judgment result; and if the candidate template is empty, the state is judged to be abnormal, and container opening alarm is triggered.

The invention provides a channel time delay correction method, a radio frequency device and communication equipment, relates to the technical field of radio frequency, and is used for improving the accuracy of channel time delay correction of the radio frequency device. The channel time delay correction method is applied to the radio frequency device, the radio frequency device comprises a control circuit, a transmitting channel and a feedback channel, the control circuit is connected with the transmitting channel and the feedback channel, and the transmitting channel is connected with the feedback channel. The method comprises the steps that a transmitting channel outputs a transmitting signal according to a first signal and a correction sequence; wherein the autocorrelation of the correction sequence is higher than a first threshold value; the feedback channel collects a feedback signal corresponding to the emission signal, and determines the time delay of the emission channel and the feedback channel according to the feedback signal and the correction sequence; and the control circuit performs delay processing on the local oscillator signal and the control parameter of the first signal according to the time delay of the transmitting channel and the feedback channel, so that the accuracy of the channel time delay of the radio frequency device can be improved.

The embodiment of the invention provides a surface acoustic wave resonator, a filter, a radio frequency front-end module and electronic equipment, relates to the technical field of radio frequency, and is used for improving the suppression effect on a miscellaneous mode in the SAW filter. The surface acoustic wave resonator comprises a substrate, and a low-sound-velocity layer, a first high-sound-velocity layer, a piezoelectric layer and an interdigital electrode which are arranged on the same side of the substrate. And the material of the piezoelectric layer comprises LiNbO3 single crystals. The first high-sound-velocity layer is arranged on the side, away from the substrate, of the low-sound-velocity layer, the piezoelectric layer is arranged on the side, away from the substrate, of the first high-sound-velocity layer, and the interdigital electrode is arranged on the side, away from the substrate, of the piezoelectric layer. The first high-sound-velocity layer is arranged between the low-sound-velocity layer and the piezoelectric layer, so that the intensity of a rayleigh mode on the low-frequency side of a main mode in the surface acoustic wave resonator can be effectively inhibited.

The invention discloses an ultrahigh frequency RFID reader-writer digital processing circuit based on RISC-V. The ultrahigh frequency RFID reader-writer digital processing circuit can be applied to the technical field of radio frequency. According to the application, the processing module, the memory module and the ultrahigh frequency read-write data module are arranged, the controller core constructed based on the RISC-V architecture is arranged in the processing module, and then the processing module, the memory module and the ultrahigh frequency read-write data module are tightly coupled, so that the integration level of the reader-writer can be effectively improved; the area of the reader-writer is reduced, then the interaction process of the ultrahigh-frequency read-write data module and the controller core is managed in a coordinated mode through the bus matrix, and after the controller core receives an external control instruction sent by an upper computer, the label data reading process of the ultrahigh-frequency read-write data module is controlled according to the external control instruction. Therefore, the characteristics of the RISC-V architecture can be utilized, the manufacturing cost is reduced, and the area of the reader-writer is further reduced.

The invention relates to the technical field of radio frequency, and discloses a differential phase self-calibration single-power-supply variable gain distributed balun circuit which comprises a differential phase calibration module, an ultra-wideband matching gain adjustment module and a distributed balun amplifier core module connected with the differential phase calibration module and the ultra-wideband matching gain adjustment module. On the basis of a traditional differential-to-single-ended distributed balun circuit, the defect that a traditional distributed balun needs multiple sets of power voltages is overcome by only needing one set of power voltages, and meanwhile, the distributed balun circuit provided by the invention also has a digital gain calibration function, so that the balun has a higher degree of freedom in use. In addition, a differential signal self-calibration circuit is further used, and it is guaranteed that the phase error of balun differential input is minimized.

The invention provides a radio frequency detection circuit and a radio frequency power supply system, and relates to the technical field of radio frequency, and the radio frequency detection circuit comprises a detection unit, a parameter acquisition unit and a processing unit. The detection unit is used for being connected with a transmission path of radio frequency electric energy so as to detect the voltage and current of the transmission path to obtain a voltage detection signal and a current detection signal. The parameter acquisition unit is connected with the detection unit and is used for acquiring a first impedance parameter and a second impedance parameter according to the voltage detection signal and the current detection signal. And the processing unit is connected with the parameter acquisition unit and is used for obtaining the radio frequency parameter of the transmission path at least according to the first impedance parameter and the second impedance parameter. According to the invention, the radio frequency parameter of the transmission path can be rapidly obtained.

The invention provides a gain control method, a storage medium and a radio frequency generator, and the method is applied to the technical field of radio frequency, and comprises the steps: determining a target analog gain control parameter and a target digital gain control parameter according to a target power proportion in a radio frequency output instruction when the radio frequency output instruction is received; and performing digital domain gain modulation based on the target digital gain control parameter and a radio frequency signal parameter in the radio frequency output instruction to obtain a digital radio frequency waveform, converting the digital radio frequency waveform into an analog radio frequency waveform, and performing analog domain gain modulation on the analog radio frequency waveform based on the target analog gain control parameter to obtain a target radio frequency signal.

This invention discloses a signal transmission path optimization method for an integrated RF terminal chip, relating to the field of RF technology. The invention includes: S100 real-time parameter acquisition, calculation of mismatch loss factor, impedance deviation factor, and interference rise factor; S200 weighted fusion of the three factors to obtain a disabling coefficient, constructing a disabling coefficient curve, performing curve feature analysis to generate a reconstruction index, and comparing it with a threshold to determine whether reconstruction is necessary; S300 when reconstruction is required, querying the target control word of the matching network and filter based on a multi-dimensional lookup table, and performing priority correction based on interference and power occupancy; S400 executing control word writing, verifying the effect, and if it does not meet the standard, performing local search and fine-tuning until performance is restored. This invention achieves adaptive optimization of signal transmission paths in multiple frequency bands and scenarios through a closed-loop dynamic reconstruction process of perception, decision-making, execution, and verification, effectively reducing mismatch loss and interference impact, and improving the overall performance of the RF terminal chip.

The present disclosure provides a region-restricted electronic cigarette working circuit, which comprises a monitoring chip, a region sensing module and an atomization switch module. The region sensing module interacts with an external reader / writer through built-in wireless radio frequency tags to identify the boundary of a smoking prohibited area in real time and output an induction signal to the monitoring chip. Based on the received induction signal, the monitoring chip sends on-off instructions to the atomization switch module through an atomization signal control terminal, thereby controlling the on-off of the heating element power supply circuit. This circuit realizes the automatic control of the electronic cigarette use area through wireless radio frequency technology, breaks through the time and space limitations of traditional manual supervision, directly blocks illegal smoking behavior at the hardware level, significantly improves the execution efficiency of public place smoking prohibition regulations, effectively reduces management costs and enhances real-time supervision, and provides technical support for building an intelligent smoking management system.

The present invention relates to the field of radio frequency technology, and specifically relates to a method for updating fuzzy rules, a monitoring system, a device, equipment and a medium. First, the present invention collects the electrical characteristic parameters of the plasma and determines the reference state corresponding to the parameters, and presets fuzzy rules. The fuzzy controller classifies the electrical characteristic parameters through the preset fuzzy rules to obtain classification labels, and then the fuzzy controller outputs the fuzzy state of the plasma according to the classification labels. If the fuzzy state is not the same as or does not match the reference state, then the predicted fuzzy rules are adjusted and updated until the output state is the same as or matches the reference state. At this time, the fuzzy rules are the target fuzzy rules. The fuzzy rules of the present invention are not fixed, but are appropriately adjusted according to the electrical characteristic parameters, so that the fuzzy rules are adapted to the electrical characteristic parameters, and finally the state of the plasma can be accurately determined through the fuzzy rules of the present invention.

The invention discloses a small-sized wide instantaneous bandwidth radio frequency receiving front-end SiP module based on an HTCC, and belongs to the technical field of microwaves and radio frequency. The radio frequency receiving front end is realized on the basis of an SiP module of the HTCC, the mirror image frequency is far away from the radio frequency signal frequency spectrum through a high local oscillator dual-frequency conversion mode, and the spurious component generated by frequency mixing is moved to a high-frequency area outside an intermediate-frequency passband, so that wide instantaneous bandwidth and high spurious suppression are realized. According to the invention, miniaturization of the SiP module is realized based on the HTCC technology; a secondary frequency conversion superheterodyne circuit architecture and a high local oscillator design are combined, so that the instantaneous working bandwidth is widened to 4GHz, and meanwhile, high spurious suppression is realized; in addition, the vertical interconnection structure is improved, long-distance low-loss transmission of radio-frequency signals is achieved, and the size is further reduced. The ultra-wideband low-noise amplifier has the advantages of miniaturization, wide instantaneous bandwidth, low noise amplification and high spurious suppression, and a solution is provided for miniaturization and low-cost mass production of an ultra-wideband radio frequency system.

There is described a building automation system comprising a mobile tag, sensor devices, and a sensor hub. The mobile tag transmits a broadcast beacon based on RF technology. The sensor devices are co-located with light fixtures and include antennas for receiving a broadcast beacon. The sensor devices generate signals associated with the broadcast beacon received by the antennas. The sensor hub receives the signals from each sensor device and determines a location of the mobile tag based on the signals.

The application relates to radio frequency technology and particularly provides an input overvoltage protection circuit of a radio frequency ADC, which comprises an ADC acquisition unit; a switching unit is used for selectively making a voltage signal enter a first channel or a second channel, wherein an attenuation circuit is arranged in the second channel; the output ends of the first channel and the second channel are sequentially connected with a first radio frequency operational amplifier and the ADC acquisition unit, the first radio frequency operational amplifier completes single-end to differential conversion; and an identification circuit is connected with the output ends of the first channel and the second channel, and when it is identified that the voltage of the first channel exceeds a set value, the voltage signal selects the second channel. The application has the advantages of good protection effect and the like and can be applied in a mass spectrometer.

The invention provides an impedance matcher, radio frequency power supply equipment and a radio frequency power supply system, and relates to the technical field of radio frequency. The impedance matcher comprises a series connection matching module, a first parallel connection matching module and a second parallel connection matching module. The series matching module is connected between the radio frequency source and the load. The first parallel matching module is selectively connected or disconnected with the first connection point, the first connection point is a connection point between the radio frequency source and the load, and the first parallel matching module is used for being connected with the first connection point at each high level stage of the pulse radio frequency electric energy and being matched with the series matching module to carry out impedance matching on the radio frequency source and the load. And the second parallel matching module is selectively connected or disconnected with the first connection point, and the second parallel matching module is used for being connected with the first connection point at each low level stage of the pulse radio frequency electric energy and being matched with the series matching module to carry out impedance matching on the radio frequency source and the load. Impedance matching can be realized when pulse radio frequency electric energy is output.

The utility model provides a UKey key management device which adopts a non-contact radio frequency technology to carry out intelligent management on access information of keys. Comprising a box body and a control module arranged in the box body, the box body is divided into an operation area and a storage area, the operation area is provided with a display module and an input keyboard which are electrically connected with the control module, and a box door is hinged to one side of the storage area; a plurality of rows of plug-in type storage assemblies, a card storage bag and an electromagnetic door lock which is matched with the box door and electrically connected with the control module are sequentially arranged in the storage area from top to bottom, and an infrared detection module and a non-contact radio frequency induction module which are electrically connected with the control module are further arranged in the storage area. The control module is electrically connected with an authorization module matched with the electromagnetic door lock. The key management system is applicable to the technical field of key management.

The present invention is applicable to the field of radio frequency technology, and particularly relates to a radio frequency front-end module and a radio frequency chip. The radio frequency front-end module includes: a substrate and a first chip, a second chip, a third chip, and a fourth chip fixed to the substrate; the first chip is used for signal amplification processing of a first-band radio frequency signal and a second-band radio frequency signal; the second chip is used for signal amplification processing of the first-band radio frequency signal; the third chip is used for signal amplification processing of the second-band radio frequency signal; the fourth chip is used for filtering processing of the first-band radio frequency signal and the second-band radio frequency signal. Compared with the prior art, the radio frequency front-end module proposed by the present invention can achieve efficient coordination of dual-band transmission and reception circuits under a compact structure, and at the same time, by integrating filter and bypass function designs, simplifies the power control process of the radio frequency front-end module and reduces radiation and energy consumption, effectively improving the reliability and service life of the radio frequency front-end module.

The invention discloses a high-energy radio frequency sterilization intelligent flexible production method for edible mushrooms, and belongs to the technical field of edible mushroom production processes. The method comprises the following steps of substrate enzymolysis and blending, high-temperature fermentation, automatic bagging, high-energy radio frequency sterilization, heat pump cascade curing and cooling, sterile inoculation, intelligent fungus cultivation and flexible switching. According to the invention, the utilization rate of the matrix is improved through enzymatic treatment, rapid and low-consumption sterilization is realized by utilizing a high-energy radio frequency technology, energy recovery and accurate temperature control are carried out by combining a heat pump cascade technology, and flexible, intelligent and continuous production of multiple varieties of edible mushrooms is realized by matching with an intelligent control system. The method solves the problems of high energy consumption, high pollution rate and low automation degree of the traditional process, and has remarkable economic benefits and environmental protection advantages.

The technology described herein is directed towards a wide-bandwidth, high-frequency (e.g., millimeter wave) hybrid coupler. One implementation of the hybrid coupler is passive and compact, is designed with a single top metallization layer, and does not require any interconnecting layer. The planar design can include four ports coupled to the four sides of a rectangular (e.g., square) metal plane portion, with cross-shaped slots that intersect in the center of the metal plane portion, and two back-to-back connected slanted bracket slots for efficiently routing E- and H-fields to other ports. Design tweaks can change the radio frequency (RF) characteristics of the hybrid coupler, including, for example, scaling the hybrid coupler dimensions to establish the center frequency, while retaining constant bandwidth. Other tweaks can be made to the dimensions of the cross-shaped slots. The design facilitates integration with other planar RF technologies.

The application is suitable for the field of radio frequency technology, and particularly relates to a power amplifier and a radio frequency chip. The power amplifier comprises a voltage conversion circuit, a bias control circuit and an amplification circuit. An input end of the voltage conversion circuit is used for receiving an external control voltage, and an output end of the voltage conversion circuit is connected to an input end of the bias control circuit. The voltage conversion circuit is used for converting the external control voltage into an output voltage and outputting the output voltage to the bias control circuit. The external control voltage and the output voltage have one of a linear relationship, a logarithmic relationship, an integral relationship and an exponential relationship. Compared with the prior art, the application converts the external control voltage into the output voltage with multiple mathematical relationships, and combines multiple-gear bias proportion adjustment to realize more flexible and more accurate power control of the power amplifier in different working modes, and improve the performance of the power amplifier.

This invention discloses an integrated structure and method for a time-domain pulse source and antenna, belonging to the field of radar and radio frequency technology. It includes a housing containing a circuit board with an integrated pulse generation module and a matching optimization module. An antenna radiation module is also housed within the housing and connected to the radio frequency output terminal on the circuit board via an extremely short radio frequency feed structure. The matching optimization module acquires the excitation waveform from the pulse generation module and the radiation waveform from the antenna radiation module, and adjusts the pulse parameters of the pulse generation module or the structural parameters of the antenna radiation module to achieve integrated matching of the pulse source and antenna. This integrated structure and method for a time-domain pulse source and antenna solves the problem of decreased detection accuracy caused by signal tailing in ultra-wideband time-domain radar systems through joint optimization design of the pulse source and antenna, and is suitable for high-resolution, high-real-time anti-UAV detection and identification systems.

A lighting device includes a freeform lens configured to accommodate multiple light-emitting diodes (LEDs), allowing for different light distribution patterns based on the position of the LEDs. A processing device selectively activates specific LEDs to achieve a desired light distribution pattern. A transceiver facilitates wireless communication with an external user device, enabling remote control. One or more sensors detect environmental factors, and a memory stores algorithms and profiles for automatically adjusting lighting characteristics based on sensor data and commands from the transceiver. The device can operate using infrared or radio-frequency technology and includes a machine learning module to adjust lighting based on learned user preferences and sensor data. A method for remotely controlling the lighting characteristics involves wirelessly receiving commands to adjust light distribution patterns and automatically adjusting the patterns based on environmental factors and predefined algorithms.

The invention discloses a radio frequency control method based on tuning response and harmonic optimization, and relates to the technical field of radio frequency, and the method comprises the steps: S1, generating an array configuration word in a target radio frequency system through employing a multi-capacitor switching array; s2, a multi-capacitor switching array is used for driving switch state switching to generate an initial radio frequency signal; s3, constructing an iterative optimization method to carry out iterative calculation on parameters of the notch filter; and S4, configuring the optimal notch parameter generated by iteration to the notch filter, and carrying out filtering correction on the initial radio frequency signal. Compared with the prior art, the method has the advantages that the frequency spectrum data of the radio frequency signal is acquired by means of the multi-capacitor switching array, and the harmonic residual measurement value of the system is reduced by constructing the iterative optimization process and combining the notch filter parameter iterative optimization and using the optimal notch parameter correction; the method has the advantages of effectively reducing residual stray power, maintaining high signal-to-noise ratio and low error performance, and reducing systematic interference.

The present invention discloses a phase modulation dynamic truncation device, belonging to the fields of communications, radar, electronic countermeasures, and integrated radio frequency technology. The device comprises N-channel phase modulation sampling modules, one-channel energy sensing module, N-channel dynamic truncation modules, N-channel phase demodulation modules, and one-channel beamforming module. By estimating the signal energy within the instantaneous bandwidth, the device adaptively selects an appropriate bit width at the unit level for dynamic truncation. Phase modulation and demodulation are simultaneously introduced to reduce truncation spurious noise. This device optimizes distributed digital array edge acquisition, computing, processing, and other resources and throughput efficiency, while ensuring that the overall array synthesis meets signal-to-noise ratio and dynamic range requirements. This significantly reduces implementation complexity, power consumption, and cost.

The utility model discloses a harsh environment intelligent search and rescue device based on radio frequency technology, comprising a device main body, both ends of both sides of the device main body are integrally provided with end blocks, both sides of the interior of the device main body are provided with output shafts, both ends of the output shafts respectively penetrate to the outer sides of the end blocks at the corresponding sides, and the output shafts are connected with the device main body. An end block is arranged on the upper portion of the device body, a movable groove is formed in the surface of the end block, two clamping arms distributed up and down are movably installed in an inner cavity of the movable groove, and supports are arranged on the two sides of the device body. A tire driving mode is switched on a dry and flat road, the driving speed is increased, the search and rescue efficiency is improved, a track mode is switched on a muddy and bumpy road surface, a search and rescue vehicle cannot slip, the search and rescue vehicle can still move forwards normally to complete search and rescue work, the search and rescue efficiency is improved, and convenience is provided for work and use of a user.

The radio frequency beauty instrument detection table comprises a machine body, a placement mechanism and a radio frequency beauty mechanism, a base is arranged at the bottom end of the machine body, and universal wheels are arranged on the two sides of the bottom end of the base. According to the radio frequency beauty instrument detection table, through the arrangement of the placing mechanism, when a user uses a radio frequency beauty mechanism to beautify the face skin, the radio frequency beauty instrument detection table needs to be used together with a skin care product, and various types of skin care products can be placed in a placing disc in the placing mechanism at the front end of the machine body; according to different types of skin, different types of skin care products are selected for use, when the face skin is beautified, the radio frequency beauty instrument can directly penetrate through deep skin tissues through the radio frequency technology, then collagen is heated, natural resistance movement of subcutaneous tissues generates heat energy, collagen hyperplasia is stimulated, and the skin care effect is achieved. The skin care product is matched for use, so that the skin is cleaned and moisturized, and the beautifying effect is improved.

The application provides an RFID data transmission method and system for highland construction environment, which comprises the following steps: surveying the environment information of a construction area, adjusting the frequency band of an RFID antenna, determining a plurality of data reading positions of the construction area according to the environment information, configuring corresponding RFID tags for each data reading position respectively, carrying out anti-interference processing, reading real-time frequency data generated by each RFID tag, constructing construction information of the construction area, establishing a data transmission scheme, transmitting each real-time frequency data to a corresponding construction terminal for display, transmitting all real-time frequency data and construction information to a smart construction site platform for display, adopting ultrahigh frequency transmission and improving antenna gain, improving the read-write distance of RFID wireless radio frequency technology in the construction site, and combining with a radiation-proof device to improve the anti-interference capability.

The utility model discloses a radio frequency generator, and relates to the technical field of radio frequency. Comprising a generator shell, a front baffle is installed on one side of the generator shell, a rear cover plate is fixedly connected to the side, opposite to the front baffle, of the generator shell, a water cooling plate is jointly and fixedly connected between the front baffle and the rear cover plate, and two symmetrically-distributed water connectors are arranged on the surface of the rear cover plate. As the basis of a direct current part and a radio frequency part of the radio frequency generator, the water-cooling pipe is arranged in the water-cooling plate and is communicated with the outside through the water joints, and cooling water is injected into the water-cooling plate through one water joint in the operation process of the radio frequency generator, so that the water-cooling plate is cooled. And the cooling water absorbing heat flows out from the other water joint, so that the working environment in the radio frequency generator is kept at a relatively stable working temperature, and the service life of precise components in the radio frequency generator is prolonged.

The present disclosure relates to the technical field of radio frequency, and provides a bulk acoustic wave resonator and a manufacturing method therefor, and an electronic device. The bulk acoustic wave resonator of the present disclosure comprises: a base substrate, a first electrode, a piezoelectric layer, and a second electrode; the first electrode is arranged on the base substrate, the second electrode is arranged on the side of the first electrode facing away from the base substrate, the piezoelectric layer is arranged between the first electrode and the second electrode, and the orthographic projections of any two of the first electrode, the piezoelectric layer, and the second electrode on the base substrate at least partially overlap; the bulk acoustic wave resonator is divided into a working area and a peripheral area surrounding the working area; and the bulk acoustic wave resonator comprises a first air gap located in the peripheral area, and the first air gap at least passes through part of the thickness of the piezoelectric layer in the direction perpendicular to the base substrate.

The technology described herein is directed towards a wide-bandwidth, high-frequency (e.g., millimeter wave) quadrature coupler. One implementation of the quadrature coupler is passive and compact, is designed with a single top metallization layer, and does not require any interconnecting layer. The planar design can include four ports coupled to the four sides of a rhombus / diamond metal plane portion, with cross-shaped slots that intersect in the center of the metal plane portion for efficiently routing E- and H-fields to other ports. Design tweaks can change the radio frequency (RF) characteristics of the quadrature coupler, including, for example, scaling the quadrature coupler dimensions to establish the center frequency, while retaining constant bandwidth. Other tweaks can be made to the dimensions of the cross-shaped slots. The design facilitates integration with other planar RF technologies.