130 results about "Ambient energy" patented technology

A method for receiving, by an ambient power (AMP) device that harvests environmental energy, an identification (ID) request frame from a powered wireless device. The ID request frame includes one or more frame-exchange parameters and an authentication and key management (AKM) method. The method includes retrieving, from memory, a secret that is shared with the powered wireless device, determining, using the secret, one or more first AKM parameters, and transmitting, to the powered wireless device, by the AMP device, an ID response frame including an ID of the AMP device, at least one of the one or more frame-exchange parameters and the one or more AKM parameters with which the powered wireless device is to be mutually authenticated with the AMP device and to generate an encryption key to initiate an encrypted wireless communication session.

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.

A method including determining, by an ambient power (AMP) device that harvests environmental energy, one or more first authentication and key management (AKM) parameters, and transmitting, by the AMP device to a powered wireless device, an initialization request frame comprising one or more frame-exchange parameters and the one or more first AKM parameters with which the powered wireless device is to establish an encrypted wireless communication session with the AMP device.

The invention discloses a wood-based evaporation-driven photovoltaic power generation device and a preparation method thereof.The preparation method comprises the steps that natural beech serves as a matrix, and a surface gradient hydrophilic structure is constructed through pretreatment, deep eutectic solvent DES selective delignification treatment, citric acid modification carboxyl introduction and surface silane modifier spraying in sequence; directional transmission of water is realized through an anisotropic micro-channel reserved in wood, and stable water vapor flow induction potential is generated by combining ion selective migration induced by surface fixed charges and an interface evaporation process driven by a top photo-thermal layer, so that electric energy is continuously output. The device has good environmental adaptability, can stably output voltage and power in a high-humidity or high-salt environment, and shows excellent durability and expansibility. The method is environmentally friendly, the process is simple, functional high-value utilization of wood can be achieved, and the method is suitable for flexible electronic or distributed energy supply systems such as low-power-consumption sensors and environment energy collectors.

The invention relates to the field of direct-current energy taking, in particular to a steel rail potential direct-current energy taking device and method applied to subway sensor power supply. In order to solve the problems of sensor power supply in a subway direct-current power supply system, for example, cable laying is difficult, battery maintenance cost is high, and environment energy collection is limited, the device utilizes steel rail potential to carry out efficient energy collection. The device comprises a main power module and a control module, wherein the main power module comprises a rectifier bridge, a double-MOSFET structure, a voltage-stabilizing filter capacitor Cbus and an energy collector; and the control module executes a maximum power point tracking strategy through the voltage measurement interface and the grid control interface. The strategy comprises a periodic open-circuit voltage acquisition stage, an optimal voltage regulation stage and a voltage holding stage, the input voltage is stabilized at 1 / 2 of the open-circuit voltage by controlling the on-off state of the double MOSFETs, and the Cbus voltage is dynamically maintained to fluctuate around the optimal reference voltage by + / -5%. Stable and efficient power supply is realized, and the maintenance cost is reduced.

A method comprising: determining, by an ambient power (AMP) device harvesting ambient energy, one or more first authentication and key management (AKM) parameters; and transmitting, by the AMP device to a powered wireless device, an initialization request frame including one or more frame exchange parameters and the one or more first AKM parameters with which the powered wireless device is to establish an encrypted wireless communication session with the AMP device.

The present invention relates to the field of environmental monitoring, and discloses an integrated self-powered environmental monitoring system, which includes a self-powered unit, an environmental element monitoring unit, a data acquisition unit, a battery unit, a power management unit and a remote management platform. The self-powered unit collects environmental energy and converts it into electrical energy to ensure the power supply of the system. The environmental element monitoring unit monitors the characteristic parameters of the micro-meteorological environment in real time; the data acquisition unit processes and stores data, and interacts with the remote management platform through the radio frequency / antenna unit. The remote management platform uses the monitoring data analysis unit to judge whether the environment is abnormal and issue early warnings. The beneficial effects are remarkable. The integrated design simplifies the installation process and improves the construction efficiency; the self-powered function solves the power supply problem in remote areas; the integrated power management and remote interaction system is convenient for real-time maintenance and adjustment, and has good application prospects in the field of environmental monitoring.

The invention discloses an active intelligent lock system and a control method thereof, and belongs to Internet of Things safety equipment. The active intelligent lock system is provided with an environment energy collection module, a dual-channel power management module, a dynamic power consumption controller, a multi-mode authentication module, an authorization authentication module, a communication module and a master control MCU (Microprogrammed Control Unit), the environment energy collection module and the dual-channel power management module can improve the power supply endurance of the active intelligent lock system and the safety emergency processing of power supply faults, and the dynamic power consumption controller can provide three different power consumption modes to optimize the dynamic energy consumption in multiple use scenes, so that the utilization rate of electric energy is improved; the multi-mode authentication module and the authorization authentication module provide a multi-person combined unlocking mechanism, the industrial-grade centralized supervision requirement and intelligent management are met, and the use safety and operation convenience of the active intelligent lock system are effectively improved.

The invention belongs to the technical field of intelligent building materials, and particularly relates to a self-cleaning intelligent window with a water power generation function and a femtosecond laser preparation method of the self-cleaning intelligent window. An SMP layer with a micro-column array structure is precisely machined through femtosecond laser, an electrode is integrated through a conducting medium and ITO glass, mechanical energy of raindrops and condensate drops is effectively captured in combination with a surface super-hydrophobic coating, and the mechanical energy is converted into electric energy; the self-adaptive adjustment of the light transmittance along with the temperature is realized through the phase change characteristic of the temperature-sensitive hydrogel. Through the interface coupling design of the SMP / ITO / hydrogel three-layer structure, the light transmittance dynamic regulation and control function, the environment energy recovery function and the self-cleaning function are integrated, the technical bottlenecks that a traditional intelligent window is fast in light transmittance attenuation, single in function and waste in energy are solved, and a multifunctional collaborative optimization solution is provided for building energy saving.

The invention provides a self-luminous vehicle logo control method based on environmental energy collection and storage. The method comprises the following steps that S1, a solar panel, a vibration energy collector and a thermoelectric generator which are connected in parallel are used for supplying power to a dual-mode energy storage system; s2, a dual-mode energy storage system is used for storing electric energy and supplying power to the flexible light-emitting display unit, and the dual-mode energy storage system is formed by connecting a super capacitor and a miniature lithium battery in parallel; s3, performing ambient light induction and energy management by using an ambient light induction module and an energy management module of the intelligent control module; and S4, the flexible light-emitting display unit is used for providing a light source for the vehicle logo identification. The vehicle logo has the advantages that self-continuous light emitting and intelligent environment adaptation of the vehicle logo are achieved, and the energy-saving performance and reliability of the vehicle logo are improved.

The invention discloses a calibration time self-adaptive MPPT (Maximum Power Point Tracking) method for an environmental energy collection circuit. The method comprises the following steps of: starting the energy collection circuit; confirming the maximum power point, and recording the characteristic voltage V1 of the input end of the energy collection circuit at the moment; after the interval calibration time T0, the maximum power point is confirmed again, and the characteristic voltage V2 of the input end of the energy collection circuit at the moment is recorded; if V1-V2 is greater than V, reducing T from T0 to obtain new interval calibration time T1, otherwise, increasing T from T0 to obtain T1; and repeating the above process until T1 approaches or reaches the minimum calibration time Tmin, or T1 reaches the maximum calibration time Tmax, and terminating. The method can reduce the tracking power consumption of the energy collection circuit, and is suitable for collecting environment energy such as light energy, electromagnetic energy and heat energy.

Methods and devices for enhancing the usage of random-access uplink radio resources by wireless devices, for example, wireless devices harvesting ambient energy. The method being implemented by a user equipment, UE, of the wireless communication system, wherein the UE comprises a communication unit (XX) configured to exchange data with a radio access network, RAN, of the wireless communication system, wherein the method comprises: having a mapping between UE types, data volumes to be transmitted, and random-access preamble configurations, selecting based on UE types and data volumes to be transmitted a corresponding random-access preamble configuration, using the selected random-access preamble configuration for performing an uplink transmission.

There are provided a frame transmission method, a communication device and a storage medium. The method includes: a first device sending or receiving a MAC frame, wherein the MAC frame has a first frame structure, and the first frame structure is different from conventional frame structures; and the first device is a communication device based on environmental energy.

Backscatter Device (BKD) placement and placement calibration may be provided. A plurality of ambient energy sources in a Three-Dimensional (3D) space may be identified and mapped. Each of the plurality of ambient energy sources may be categorized as one of the following: a stationary and controllable ambient energy source, a stationary and uncontrollable ambient energy source, and a mobile ambient energy source. An amount of ambient energy available at each of a plurality of sub-spaces of the 3D space may be determined. The amount of ambient energy available at each of the plurality of sub-spaces may be determined by determining a first amount of ambient energy that is continuously available and a second amount of ambient energy that is likely available at each of the plurality of sub-spaces of the 3D space.

A method includes broadcasting, by a powered wireless device, a survey request frame to a plurality of ambient (AMP) devices that harvest environmental energy, wherein the survey request frame comprises a unique public key to be used by each AMP device, of the plurality of AMP devices, to generate a survey response frame. The method includes using, within the survey request frame, a first random address as a source media access control (MAC) address and one of a broadcast address or a group address as a destination MAC address. The method includes determining, from each respective survey response frame, whether a corresponding AMP device of the plurality of AMP devices is accessible from which to securely obtain data.

The invention discloses a liquid visual detection device based on a rotary friction nanometer generator, belongs to the field of environmental energy collection and sensing, and solves the problems that a traditional device depends on external power supply, maintenance is complicated, mechanical energy is wasted, and detection visualization is poor. The device comprises a rotary friction nanometer power generation module, an electric energy storage module, an electronic switch, an MCU master control module, a Bluetooth transmission module, a touch ACEL module, an array ACEL module and an intelligent visual acquisition module. The power generation module converts rotary mechanical energy into electric energy, and the storage module stores power to a critical value for power supply; the touch ACEL has different luminous intensities due to different liquids, the visual module acquires images and analyzes the images, the Bluetooth transmits data to the MCU, the MCU controls and displays logic, and the array ACEL visualizes coded information. The device realizes self power supply, reduces maintenance, improves detection intuition, is compact in structure and high in applicability, and can be used for liquid detection in the fields of environmental monitoring, industrial production and the like.

This invention relates to a charging management method and system for mobile charging cabinets. The method includes acquiring the location status information and identity information of the charging equipment in the mobile charging cabinet; performing multi-factor authentication on the identity information and matching it with the location status information to obtain a charging authorization status; acquiring the interface charging parameters of the mobile charging cabinet and associating the interface charging parameters with the charging authorization status to obtain a charging management group; acquiring the battery status data of the charging equipment and performing charging planning with the charging management group to obtain a charging parameter curve; performing charging mode analysis on the charging management group and the charging parameter curve based on a preset environmental energy game algorithm to obtain an initial charging control scheme; evaluating environmental factors on the battery status data and optimizing the initial charging control scheme to obtain a charging control strategy. This invention can formulate personalized charging parameter curves for different types and states of batteries.

The application relates to a low-power self-powered wireless monitoring node and a working method thereof. The node comprises an energy collection module, an energy storage module, a microcontroller, a sensor module, a storage module and a wireless communication module; the energy collection module is used for collecting environmental energy and charging the energy storage module; the energy storage module is used for providing electric energy; the microcontroller is used for processing the collected monitoring data and storing the monitoring data in the storage module, and the microcontroller controls the sensor module and the wireless communication module to switch between different working states according to preset conditions, so that the wireless communication module sends the monitoring data to a remote monitoring platform. The working method comprises environmental energy collection and energy storage, monitoring data collection and storage, data processing, starting the wireless communication module to send data when the uploading condition is met, and entering a sleep state or a low-power running state after the data sending is completed. The application can reduce the dependence on external power supply, reduce the energy consumption caused by long-term online, and improve the long-term online monitoring continuous operation capability.

A method for receiving, by an ambient power (AMP) device that harvests ambient energy, an identification (ID) request frame from a powered wireless device. The ID request frame includes one or more frame exchange parameters and an authentication and key management (AKM) method.The method includes retrieving, from a memory, a secret shared with the powered wireless device, determining, using the secret, one or more first AKM parameters and transmitting, by the AMP device, to the powered wireless device, an ID response frame comprising an ID of the AMP device, at least one of the one or more frame exchange parameters, and the one or more AKM parameters with which the powered wireless device and the AMP device are to be authenticated to each other, and generating an encryption key to initiate an encrypted wireless communication session.

A wireless communication method, an environmental energy AMP device and a network device, the method comprising: an environmental energy AMP device sending a first signal, the first signal being used by the network device to perform measurement to determine a target network device to which the AMP device accesses or switches.

This invention belongs to the field of road engineering technology, specifically relating to an integrated self-adhesive rubber asphalt asphalt crack repair and monitoring system. The system includes: a self-adhesive rubber asphalt composite material layer for filling cracks and absorbing stress; a flexible sensing network unit embedded within the layer to sense strain and temperature; a data acquisition and signal conditioning module; a self-powered energy capture system that utilizes ambient energy to power the system; an edge computing terminal for localized damage assessment; and a remote cloud management platform. This system improves bonding strength and low-temperature flexibility through material modification, and combines embedded sensing and self-powered technology to achieve a leap from passive filling to active sensing of the repair body. It solves the problems of difficult power supply in the field and lack of coordination in monitoring, enabling real-time feedback of the interface mechanical state, significantly improving the scientific nature and predictability of highway maintenance, and reducing overall operation and maintenance costs.

The invention discloses a service request method, network side equipment and a storage medium, and belongs to the technical field of wireless communication, the service request method comprises the following steps: a first radio access network RAN node receives an environment energy enabled Internet of Things AIoT service request sent by a core network node, the AIoT service request carries information of an AIoT reader-writer or an AIoT device; the first RAN node forwards the AIoT service request to a second RAN node, and the second RAN node is used for paging the AIoT reader-writer or the AIoT device executing the AIoT service.

The invention discloses a control method and device for a multispectral photon sieve self-powered camera and a medium, and the method comprises the steps: carrying out the multiband spectrum separation of incident light through a nano-structure filtering layer, obtaining optical signals of different wavelengths, and transmitting the separated optical signals to a photon storage and calculation integrated chip for optical domain feature extraction; incident light is reflected to a wavefront sensor through a beam splitter prism for wavefront distortion detection, and micromirror adjustment parameters are calculated based on wavefront distortion data so as to drive a micromirror execution mechanism to dynamically compensate aberration; environment energy is collected through a flexible solar cell and a vibration energy collector, and the environment energy is converted into electric energy; the electric energy is stored in a storage battery, the corresponding electric quantity state of the storage battery is monitored, and the working mode of the camera is dynamically switched according to the electric quantity state; the working mode comprises a full-function mode and a low-power-consumption mode.

The invention provides a charging control method and device, electronic equipment and a storage medium. The environment energy collection system comprises the steps that when it is detected that the electronic equipment has wired charging and wireless reverse charging requirements, a charge pump charging mode is switched to, a signal intensity data packet sent by equipment to be charged is obtained, and the signal intensity data packet comprises charging gain needed by the equipment to be charged; and adjusting the output voltage of the wireless charging module according to the charging gain. According to the embodiment of the invention, by switching to the charge pump charging mode for charging and matching the charging gain of wireless reverse charging with charge pump charging, the charging power during wired charging and wireless reverse charging can be improved, and the charging experience can be improved.

A system for treating and / or monitoring a patient includes a patient physiological parameter monitoring patch and a companion device. The patient physiological parameter monitoring patch including an energy harvesting module, an energy storage module, a sensor module and a communication module. The energy harvesting module harvesting energy from one or more ambient sources, the energy being storable in the energy storage module and usable by one or more components of the patient physiological parameter monitoring patch. The sensor module senses one or more physiological parameters of the patient and the communication module can transmit the sensed data. The companion device can receive the sensed physiological parameters and can send the same to a remote device or store the same.

An apparatus for spatial audio signal decoding, the apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive at least one associated audio signal, the at least one associated audio signal being based on a spatial audio signal; spatial metadata associated with the at least one associated audio signal, the spatial metadata comprising at least one parameter representing an ambient energy distribution of the spatial audio signal and at least one directional parameter representing directional information of the spatial audio signal; synthesize at least one output audio signal from the at least one associated audio signal based on the at least one directional parameter and the at least one parameter, wherein the at least one parameter controls an ambient energy distribution of the at least one output signal.

This invention relates to the field of optical water quality monitoring technology, specifically to a shallow sea monitoring system and method based on multimodal optical sensing and deep learning. The system includes an electric field excitation module for generating an alternating electric field with adjustable frequency and amplitude; an optical sensing module for generating characteristic luminescent signals under alternating electric field excitation; a visual acquisition module for capturing the characteristic luminescent signals and generating multispectral image data; an edge processing module for real-time processing of the multispectral image data and water quality parameter inversion; a wireless communication module for transmitting the processing results to a terminal device; a terminal presentation module for receiving data and providing visualization and early warning management; and an energy management module for dynamically scheduling power supply strategies based on environmental energy availability. This invention achieves the detection of multiple water quality parameters through alternating current electroluminescence technology, solving the problem of low integration in multi-parameter detection systems and reducing system complexity and maintenance costs.

An ambient energy converter includes a housing having an upper portion and a lower portion. The housing lower portion has a hydrophobic material portion. The upper portion has a vent opening in fluid communication with ambience. The housing contains a mass of hygroscopic within the housing lower portion that is in fluid communication with the hydrophobic material portion. An ion conductive membrane electrode assembly is coupled to the housing to allow the passage of ionized water or water vapor through the ion conductive membrane electrode and into contact with the hygroscopic solution. An air conduit may be coupled to the housing to provide an airflow to the ion conductive membrane electrode and / or hydrophobic material portion.

The present invention discloses a method for optimizing the deployment of rechargeable Internet of Things nodes based on trusted information coverage: a network model is constructed by combining environmental energy distribution and trusted information coverage; an integer linear programming rechargeable Internet of Things node optimization deployment model is constructed by taking environmental correlation into consideration using the constructed network model; and the proposed node optimization deployment model is solved using greedy and approximation methods. In the scenario of the rechargeable Internet of Things, the present invention mines environmental correlation from the perspective of information collaborative perception, combines energy distribution, and uses Kriging interpolation and root mean square error to estimate coverage error, rationally utilizes energy, and effectively reduces deployment costs; adopts greedy thinking and combines binomial methods to solve integer linear programming models in large-scale scenarios, with fast solution speed and high accuracy, high approximation ratio and high efficiency; the method is applicable to a variety of application scenarios, trusted information coverage model, and is applicable to coverage and deployment in different environments, weather, and terrains.

The invention relates to the technical field of smart home, particularly provides a self-powered sensor data acquisition system and an air conditioner, and aims to solve the problem of how to improve the energy acquisition efficiency and the working efficiency of a sensor. In order to achieve the purpose, the system comprises at least two sensor nodes in wireless communication connection, each sensor node comprises a sensing module and a power module, and the sensing modules are used for collecting sensing data of the environment where the sensor nodes are located; the power supply module is used for collecting at least two types of environment energy in the environment where the sensor node is located and achieving self-energy supply of the sensor node based on the environment energy. Self energy supply of the sensor nodes can be achieved by collecting at least two types of environment energy in the environment where the sensor nodes are located, the energy utilization rate of the sensor nodes is improved, it can be guaranteed that each sensor node obtains enough electric energy for continuous operation, the working time of the sensor nodes is prolonged, and the working efficiency of the sensor nodes is improved. And the working efficiency of the sensor node is improved.