598 results about "Radio frequency energy" patented technology

Devices and methods enable optimizing a signal of interest based on identifying and analyzing the signal of interest based on radio frequency energy measurements. Signal data is compared with stored data to identify the signal of interest. Signal degradation data is calculated based on noise figure parameters, hardware parameters and environment parameters. The signal of interest is optimized based on the signal degradation data. Terrain data is also operable to be used for optimizing the signal of interest.

The invention discloses an intelligent management system and method applied to a radio frequency energy output device, and belongs to the technical field of intelligent management of the radio frequency energy output device.An integrated sensor array is deployed on a radio frequency host and a hand tool electrode, and load voltage, output current, electrode temperature and tissue impedance are synchronously collected; a dynamic thermal impedance collaborative analysis model is constructed after time synchronization alignment, a three-dimensional thermal field simulation map is generated, and a thermal accumulation trend is predicted; a double-layer control framework is constructed, a first control layer generates a dynamic power adjustment rule base based on a preset treatment target and a safety threshold value and outputs an instruction, a second control layer receives the instruction and adjusts output parameters in real time, and a strategy is adjusted by combining a model prediction result in the execution process; meanwhile, the operation state is continuously monitored, a fault classification model is constructed for anomaly detection, a fault source is positioned, and a visual report is generated; and finally, constructing a mapping relation based on historical data, and generating an energy control scheme adapted to individualized requirements through iterative optimization.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform event-based energy harvesting reporting to a network entity providing a signal for wireless charging or powering of the UE. The UE may signal its energy harvesting-related capabilities. and the network entity may signal to the UE a configuration for energy harvesting and event-based energy harvesting reporting. The configuration may include an indication of an energy harvesting charging range of the network entity. In some examples, the UE may indicate a maximum battery capacity of the UE, so that the network entity may determine to stop charging when the battery capacity is reached. The UE may be configured to report energy harvesting procedures according to triggering events, such as battery level of the UE or a switch in bandwidth or frequency of a charging signal.

Provided in the present application is a beauty instrument. The beauty instrument comprises a main body and a beauty head. The beauty head comprises a negative-pressure cavity and a radio frequency electrode, wherein the negative-pressure cavity is used for preforming negative-pressure suction on the skin of a user so as to suction the skin into the negative-pressure cavity; and the radio frequency electrode is used for releasing a radio frequency current to the skin of the user. The beauty head is detachably connected to the main body. When the beauty head is connected to the main body, the negative-pressure cavity is in communication with the main body such that the main body performs negative-pressure suction on the skin of the user by means of the negative-pressure cavity, and the radio frequency electrode is electrically connected to the main body such that the main body provides electrical energy for the radio frequency electrode. In this way, when the beauty instrument is used, the beauty head is detachably connected to the main body, such that the radio frequency electrode is electrically connected to the main body, and the negative-pressure cavity is in communication with the main body; thus, the main body can suction the skin into the negative-pressure cavity by means of the negative-pressure cavity, and can then emit the radio frequency current to the suctioned skin by means of the radio frequency electrode, and the radio frequency current can penetrate the skin suctioned into the negative-pressure cavity, thus increasing the penetration depth of radio frequency energy, and improving beauty effects.

The invention discloses a radio frequency plasma comprehensive testing device and method for an ion process system, and relates to the technical field of plasma testing, and the device comprises a host and a coupling probe; the coupling probe is placed on a radio frequency transmission line of an ion process system, is used for carrying out coupling sampling on radio frequency energy through a capacitance or inductance coupling mode according to an electromagnetic field coupling principle, obtains current and voltage signals through coupling, and is also used for sensing and obtaining real-time temperature data in the probe; the host comprises a main body shell and a shielding frame arranged in the main body shell, and a data processing and analyzing unit is arranged in the shielding frame and used for performing data processing on the received voltage, current and temperature signals; the radio frequency power supply power, the radio frequency power supply frequency spectrum, the impedance of the matcher and the vacuum reaction cavity and other ion process system parameter values are calculated and generated, and meanwhile clutter capture and radio frequency transmission harmonic wave test results in radio frequency transmission are output, so that the comprehensive test of the ion process system is realized.

The invention relates to the technical field of beauty instrument control methods, in particular to a beauty instrument control method and system. According to the method, skin optical characteristics, biological impedance parameters and environmental parameters are acquired through multi-dimensional data acquisition, and a characteristic data set containing hemoglobin concentration, moisture content, real part of electrical impedance and environmental temperature is generated after preprocessing. Based on the data set, a multi-engine prediction model is adopted to analyze the skin state change trend, and predicted values of the moisture demand, the temperature sensitivity, the barrier function and the microcirculation state are generated. Then, optimization instructions of radio frequency energy, a phototherapy mode, micro-current parameters and temperature control are calculated respectively according to prediction results, and safety and coordination of parameter adjustment are ensured through cooperative verification. According to the invention, through dual-time scale prediction and multi-parameter collaborative optimization, the problem of nursing effect lag caused by environment change and skin state fluctuation of a traditional beauty instrument is solved, and the nursing precision and stability are significantly improved.

The invention provides a common-antenna zero-power-consumption Internet of Things terminal energy management system based on radio frequency energy taking, which comprises a radio frequency antenna, a radio frequency energy taking module, a rectification energy storage module, a low-frequency wake-up module, a backscatter communication module and an MCU control unit, in the MCU control unit, a single-chip microcomputer controls the on-off of a power supply of a sensor through a sensor power supply control pin; a power supply of the sensor and a radio frequency switch of the backscatter communication module are switched on only in a wake-up state, and only power supply to a wake-up pin is reserved in the single chip microcomputer; through a three-layer architecture of energy capture, energy control and energy application, the terminal equipment is completely separated from battery dependence. The system constructs a closed-loop energy management system for energy collection, storage, scheduling and dormancy, the scheme is suitable for the field of passive Internet of Things with strict requirements on power consumption, cost and deployment flexibility, and a feasible solution is provided for an Internet of Things terminal.

An electrosurgical instrument includes jaws having an electrode configuration utilized to electrically modify tissue in contact with one or more electrodes. The instrument is removably connectable to an electrosurgical unit via an electrosurgical connector extending from the instrument and a receptacle on the electrosurgical unit. The electrosurgical instrument is rotatable without disrupting electrical connection to the electrodes of the jaws. One or more of the electrodes is retractable. The electrosurgical unit and instrument optimally seals and / or cuts tissue based on identifying the tissue and monitoring the modification of the tissue by the application of radio frequency energy.

A Radio Frequency Identification (RFID) enabled Self-Checkout (SCO) station includes an RF antenna that emits RF energy, such as RFID interrogation signals, through the variable apertures of one or more aperture layers into a scan zone. The size of the scan zone is selectively varied by electrically modifying the effective size of the variable aperture in the aperture layer.

The invention provides an intelligent vein closing system and a control method thereof, and belongs to the technical field of medical instruments.The intelligent vein closing system comprises a radio frequency generator host and a closing catheter, and the radio frequency generator host is used for generating and controlling output of radio frequency energy; the closed catheter comprises a handle, a catheter body and a heating working end which are connected in sequence, and the handle is detachably connected with the radio frequency generator host; wherein an infusion pump is integrated on the radio frequency generator host, and the infusion pump is used for infusing swelling liquid to a surgical site and is controlled by a control unit in the radio frequency generator host; a pressure sensor array is arranged outside the heating working end of the closed catheter and used for detecting the attaching pressure between the heating working end and the blood vessel wall in real time. The device is high in integration, and vein closing effectiveness, stability and treatment consistency are improved.

The technology described herein is directed towards a design and implementation of a subarray of unit cells for an active reconfigurable intelligent surface that is power efficient. The reconfigurable intelligent surface design integrates a switch and a power amplifier in subarrays of unit cells to selectively amplify the reflected signal, resulting in a selectively active reconfigurable intelligent surface with relatively low power consumption. Further, rather than equipping each unit cell with its own switch and power amplifier, a switch and power amplifier is shared by each m×n (e.g., 3×3) subarray of unit cells, which can be arranged as a module of a larger reconfigurable intelligent surface. Via the switch, the design provides a device for receiving and reflecting the electromagnetic signal as an amplified or non-amplified signal by coupling the RF energy, processing, and selectively amplifying or not amplifying the reflected signal.

The invention discloses a tire pressure monitoring device and method based on a passive RFID temperature tag. The tire pressure monitoring device comprises the passive RFID temperature tag, a reader-writer module and a data processing unit. And the passive RFID temperature measurement tag is fixed on the inner wall of the tire, receives the radio frequency energy sent by the reader-writer module, and collects the internal temperature of the tire in real time. The reader-writer module is fixed near a hub of a vehicle, performs polling communication with the passive RFID temperature measurement tag through a multi-band radio frequency technology, and transmits tire internal temperature data returned by the passive RFID temperature measurement tag to the data processing unit. And the data processing unit indirectly derives the tire pressure by utilizing a thermodynamic equation and combining parameters such as tire structure change, vehicle speed and load, so that high-precision and low-power-consumption tire pressure monitoring is realized. According to the method, the tire structure does not need to be damaged, non-contact pressure estimation and dynamic modeling can be achieved, and the method has the advantages of being simple in structure, high in reliability, wide in applicability and the like.

The invention discloses a vein radiofrequency ablation system based on parallel thermocouple temperature measurement, and relates to the field of medical instruments, the vein radiofrequency ablation system comprises a host control module, a temperature signal transmission module, a thermocouple temperature measurement module, a radiofrequency energy generation module and a catheter heating module, the thermocouple temperature measurement module at least comprises two parallel thermocouples; the host control module is used for fusing the temperature data of the plurality of temperature measuring points and calculating an average temperature, performing abnormal judgment on the average temperature according to a temperature abnormity automatic power-off control strategy, and dynamically triggering a radio frequency energy closing instruction; on the premise of not changing the original size and structure of the catheter and the operation method of a doctor, in a heating unit with a finite length of the catheter, real-time monitoring of local temperature distribution is realized and temperature abnormity is judged by adopting a multi-point parallel temperature measurement scheme, so that when the temperature of a local temperature measurement point is abnormally increased, radio frequency energy output is quickly closed, and the heating efficiency is improved. Further temperature rise is avoided, and adverse events such as tube burning or blood tube burning are prevented.

The invention relates to the technical field of power grid measurement, in particular to a miniaturized wireless self-powered alternating current electric field measurement method and system. Comprising the following steps: acquiring radio frequency energy in an electric field environment, and converting the radio frequency energy into direct current electric energy through a radio frequency energy acquisition system consisting of a microstrip antenna, a voltage doubling rectifying circuit and an energy management circuit; an alternating current electric field signal is collected through a differential dual-electrode sensor structure, and an electric field voltage signal is generated; amplifying the voltage signal through an instrument amplifier, and obtaining a digital signal of the electric field signal through an analog-to-digital conversion circuit; and processing and analyzing the alternating current electric field information according to the digital signal. By combining a radio frequency energy acquisition technology with a differential dual-electrode sensing structure, the electric field sensor has the performance characteristics of self energy supply, miniaturization, high precision, wide frequency response and low power consumption. The system can measure various types of electric field signals, including sine wave, triangular wave and square wave electric field signals, has a wide frequency range and a wide measuring range, and is excellent in linearity.

Provided herein are various enhancements for radio frequency antennas and antenna arrangements. In one example, an apparatus comprises a reflector for radio frequency energy having a reflector surface, and a lens element. The lens element is configured to alter a distribution of at least a portion of the radio frequency energy reflected by the reflector surface over a detection area of a feed array positioned a selected distance from the lens element.

The invention discloses a multichannel radio frequency energy ablation output system and method. Comprising an MCU control circuit, a touch screen display module, a temperature detection circuit, a sound prompt circuit, a program control voltage regulation circuit, a radio frequency energy generation circuit, a channel selection circuit, an energy bearing system, an output interface and detection circuit, a cooling system control circuit, a bypass measurement circuit and a system power supply circuit. The MCU control circuit sends an instruction signal to control the program control voltage regulation circuit and the radio frequency energy generation circuit to work, so that radio frequency energy output with fixed frequency and adjustable power is obtained, and the radio frequency energy output is sorted by the channel selection circuit and then is transmitted to the output interface, and is output to a corresponding energy bearing system by the output interface; the radiofrequency ablation output method and treatment scheme with adjustable power, real-time temperature detection, a cooling system and a built-in case system are realized, the operation steps of radiofrequency ablation treatment are simplified, and the radiofrequency ablation treatment is more efficient and quicker.

The technology described herein is directed towards a design and implementation of a subarray of unit cells for an active reconfigurable intelligent surface that is power efficient. The reconfigurable intelligent surface design integrates a power amplifier with subarrays of unit cells to amplify the reflected signal, resulting in an active reconfigurable intelligent surface with relatively low power consumption. For example, rather than equipping each unit cell with its own power amplifier, a power amplifier is shared by a m×n (e.g., 3×3) subarray of unit cells, which can be arranged as a module of a larger reconfigurable intelligent surface. Further, the design provides a device for receiving and reflecting the electromagnetic signal in the same polarization by coupling the RF energy, processing, amplifying, and then introducing a delay module to not create unwanted harmonics and amplifying the signal without breaking the signal link.

The invention provides a radio frequency power division unit, a radio frequency power division module and a radio frequency receiving system. The radio frequency power division unit comprises a first low noise amplifier, a first single-pole single-throw radio frequency switch, a second single-pole single-throw radio frequency switch, a third single-pole single-throw radio frequency switch, a power divider, a fourth single-pole single-throw radio frequency switch and a fifth single-pole single-throw radio frequency switch; the input impedance of the input end of the power divider, the impedance of the first output end of the power divider and the impedance of the second output end of the power divider are all the same. According to the radio frequency power dividing unit in the embodiment, the impedance of the two output ends of the power divider can be completely matched with the input impedance of the transceiver connected with the rear stage of the power divider, so that the transmitted radio frequency energy cannot be reflected, and the maximum transmission of the radio frequency energy is realized.

The invention relates to the technical field of information, and discloses a self-adaptive radio frequency energy capture method and system, and the method comprises the steps: collecting radio frequency signals in an environment, separating independent components of each frequency band signal from the radio frequency signals, determining the power density distribution and main lobe direction of each frequency band signal, and determining the deviation main direction of each frequency band signal; the antenna element spacing and the reference value of phase adjustment are determined by combining the expected gain requirement of the current environment, so that the antenna array configuration data are determined, the antenna array is controlled to scan the uncovered range of each frequency band signal, and then the full / directional capture mode is dynamically switched. The energy collection efficiency data in the current capture mode is evaluated to determine the target frequency band with sidelobe interference, the reference value of the target frequency band is adjusted, and the signal focusing effect is determined through the adjusted reference value to determine the capture priority of each frequency band signal, so that the radio frequency energy collection efficiency in the complex electromagnetic environment is effectively improved; and efficient capture and utilization of multi-band weak radio frequency signals are realized.

Disclosed is an apparatus for an application including a core device for the application. The apparatus includes a power (preferably RF energy) harvester connected to the core device to power the core device. Also disclosed is a method for an application. The method includes the steps of converting RF energy into usable energy. There is the step of powering the core device with the usable energy.

A radio frequency applicator, including a waveguide having a first interior surface comprising a first aperture, a second interior surface opposing the first interior surface, a third interior surface adjacent to the first and second interior surfaces, a fourth interior surface opposing the third interior surface, and a fifth interior surface perpendicular to the first, second, third, and fourth interior surfaces, an aperture antenna, a solid dielectric insert within the waveguide, the solid dielectric insert having a second aperture formed therethrough that is configured for alignment with the first aperture, an RF connector, configured to receive generated RF energy pulses, at least one planar-shaped shim, having a third aperture therethrough configured to align with the first and second apertures, and a radio frequency feed pin connected to the RF connector, disposed within the first, second, and third apertures and affixed to the second interior surface of the waveguide.

A surgical hub is for use with a surgical instrument configured to deliver therapeutic energy to tissue at a surgical site of a surgical procedure. The surgical hub comprises: a hub enclosure, comprising a docking station including a docking port comprising data and power contacts; and a combo generator module removably retainable in the docking station. The combo generator module comprises: an ultrasonic energy generator component; a radio frequency (RF) energy generator component; a smoke evacuation component; and a connection port. At least one of the ultrasonic energy generator component and the radio frequency (RF) generator component are couplable to the surgical instrument through the connection port. The combo generator module further comprises at least one smoke evacuation component, configured to evacuate smoke generated by an application of therapeutic energy to the tissue by the surgical instrument.

The invention discloses a bolt pretightening force monitoring and early warning method, system and device applied to a hydroelectric generating set and a medium, and relates to the technical field of power equipment monitoring and early warning. Signal information which is generated by the passive sensing assembly in the bolt service process and reflects the stress state is collected; the receiving device carries out data reverse acquisition on energy excitation emitted by the passive sensing assembly through radio frequency energy coupling, and the sensing assembly sends signal information to the receiving device located in a bolt adjacent region in a wireless mode; edge-level preprocessing and cloud-level trend analysis are carried out on the received signal information, a self-learning threshold model based on historical data is established, and the bolt pre-tightening state is analyzed. According to the method, the passive sensing assembly is embedded, a state driving type sampling mechanism is introduced, a data processing framework with edge and cloud collaboration is constructed, and dynamic sensing and intelligent early warning of the bolt pretightening force of the hydroelectric generating set in the whole operation process are achieved.

The invention discloses a dynamic environment parameter sensing and self-adaptive information pushing system and method fused with the near field communication technology, and relates to the field of information pushing.The system comprises a terminal, an acquisition end and a cloud server, the radio frequency energy conversion unit comprises a near field communication chip and a radio frequency receiving coil, and the radio frequency receiving coil is coupled with the input end of the near field communication chip and used for capturing radio frequency energy through electromagnetic induction; the near field communication chip is used for storing and sending data information. The system is based on multi-dimensional data, and realizes pushing of different information and data under different scenes, positions and time.

The invention provides a radiofrequency ablation system based on multi-source data, and relates to the technical field of medical instruments, and the system comprises an ablation area judgment device which is used for judging whether an operation target meets the ablation requirement or not according to a real-time ultrasonic image of the operation target; the data processing device is used for determining an ablation strategy of an ablation area of the operation target according to the real-time electrocardiogram data and the real-time vital sign data of the operation target in combination with a preset radiofrequency ablation working mode when the operation target meets the ablation requirement; the radio frequency energy generating device is used for generating corresponding radio frequency energy according to the ablation strategy; and the ablation device is used for performing ablation operation according to the radio frequency energy action. By integrating multi-source data such as real-time ultrasonic images, electrocardiogram monitoring and vital sign monitoring, accurate judgment of ablation requirements, dynamic adjustment of ablation strategies and accurate output of ablation energy are achieved, and the safety, accuracy and curative effect of cardiac radiofrequency ablation treatment are improved.

The invention discloses a frequency quasi-independent controllable double-frequency electrically small rectification circuit, and belongs to the field of radio frequency energy collection. The rectifying circuit comprises a double-frequency matching network, a blocking capacitor, two Schottky diodes, a filter capacitor and a resistive load. The dual-frequency matching network is composed of a capacitor, an inductor and a microstrip line and used for achieving impedance matching of two working frequency points and achieving quasi-independent regulation and control of the positions of the two frequency points by adjusting the value of the inductor and the length of the microstrip line. And the microstrip line is bent for five times so as to realize the miniaturization of the overall structure of the circuit. The blocking capacitor is used for blocking a direct current component and avoiding energy feedback; the two Schottky diodes are used for converting a radio frequency signal into direct current energy; the filter capacitor is used for improving the smoothness of output direct current energy and improving the energy conversion efficiency. The device is compact in structure, adjustable in frequency point position and suitable for a dual-band radio frequency energy collection scene.

The invention provides a solar energy-radio frequency energy dual-driven low-altitude polarization switching dynamic power management system, and relates to the technical field of low-altitude flight. The system integrates a high-efficiency solar energy collection unit and a radio frequency energy collection unit with dynamic polarization adaptive switching capability, is assisted by a high-performance hybrid energy storage unit, and carries out unified coordination control through an intelligent power management unit. The radio frequency energy collection unit adopts a reconfigurable antenna technology, can sense the polarization characteristic of an environment radio frequency signal in real time, and dynamically switches the polarization state of an antenna to maximize the instantaneous energy capture efficiency; the intelligent power management unit executes a dynamic and collaborative energy flow scheduling strategy based on comprehensive analysis of solar irradiance, environment radio frequency spectrum and polarization characteristics, energy storage unit state, future energy income and expenditure prediction and real-time load demand; and the energy self-sustaining capability, the task endurance time and the working stability of low-altitude equipment in a complex and changeable environment are improved.

The invention relates to the technical field of soil detection, in particular to an electronic tag for passive soil temperature and humidity measurement and a use method of the electronic tag. The electronic tag comprises a tag shell, a soil temperature and humidity sensor is arranged in the tag shell, a probe interface is arranged in the tag shell, and a probe body is fixedly installed on the surface of the probe interface. The NFC chip with the model of ST25DV is adopted, 13.56 MHz radio-frequency signals emitted by a mobile phone or a reader-writer are efficiently rectified into 3.3 V direct current, short-time power supply buffering is achieved in combination with a 2.7 V / 10F energy storage capacitor, energy is supplied to an ultra-low power consumption master control MCU 22 and a high-precision soil temperature and humidity sensor, when radio-frequency energy is insufficient, the master control MCU records the current state to an EEPROM of the NFC chip, data are continuously transmitted during next power supply, and the power consumption is reduced. A traditional battery is completely replaced, a large amount of cost generated by battery replacement is avoided, and the technical standard of sustainability and high robustness of the agricultural sensor is redefined.

The invention relates to a passive wireless temperature sensor circuit, which comprises a transceiving antenna, an RF-DC rectifier circuit, a temperature sensing circuit and a backscatter circuit, the RF-DC rectifier circuit receives external radio frequency energy based on the transmit-receive antenna and then outputs direct current for power supply. The temperature sensing circuit comprises a complementary absolute temperature voltage generator and a ring oscillator; the complementary absolute temperature voltage generator comprises an MOS tube and generates CTAT voltage based on temperature characteristics of the MOS tube. The ring oscillator converts the CTAT voltage into an oscillation frequency signal of the ring oscillator and then outputs a square wave frequency signal with a negative temperature coefficient; the backscattering circuit backscatters the square wave frequency signal through the transceiving antenna; the CTAT key generation circuit built by the MOS tube generates CTAT voltage, a temperature frequency conversion chain is built through the CTAT voltage and the ring oscillator, temperature information is converted into frequency information of the oscillator, the power consumption of the temperature sensing circuit can be effectively reduced, and meanwhile the voltage coefficient of the CTAT voltage is increased by combining the temperature characteristic of the MOS tube.

A dual-mode environment energy collection system comprises a radio frequency energy collection module, a light energy collection module, an energy storage module and a power output module. In the radio frequency energy collection module, an antenna receives radio frequency energy and then generates alternating current, the alternating current is converted into direct current through a rectifier and temporarily stored in a capacitor, and a DC-DC conversion circuit boosts electric energy in the capacitor and then transmits the boosted electric energy to an energy storage module; in the light energy collection module, a solar cell converts light energy into direct current, and when the voltage of the direct current reaches a cold start starting threshold value, a cold start circuit starts to work and supplies energy to an open circuit monitoring circuit and an MPPT circuit; the open circuit monitoring circuit monitors the voltage of the solar cell regularly and provides the maximum power point tracking direction for the MPPT circuit. The energy storage module stores the electric energy from the two collection modules; in the power output module, the power management circuit determines an opening threshold of the boost conversion circuit, and after the electric quantity voltage of the energy storage module reaches the threshold, the boost conversion circuit carries out boost conversion on the voltage of the energy storage module.