83results about How to "Reduce transmit power" patented technology

The invention belongs to the technical field of island integrated energy systems, and particularly discloses a short-time scale low-carbon optimal scheduling method and system for an island integrated energy system, and the method comprises the steps: constructing an electricity-hydrogen-heat multi-energy coupled island integrated energy system model; constructing a real-time stepped carbon transaction model based on the interval to which the carbon emission quota participating in the carbon emission transaction belongs by using an island integrated energy system model; on the basis of a real-time stepped carbon transaction model, deviation penalty of new energy prediction is considered, one day is divided into n scheduling cycles, n is an integer larger than 1, a target function is constructed with the highest total income of a system as an optimization target, the optimization target is solved, and an optimized scheduling result is obtained. According to the invention, wind energy, solar energy, wave energy, stored energy, a photo-thermal power station and other energy sources are co-scheduled with electricity, hydrogen and water loads to form a dynamically balanced energy system; and high consumption and low carbon emission are kept as far as possible.

The embodiment of the invention provides an intelligent reflecting surface coverage enhancement method and device for electric power inspection, and the method comprises the steps: building an intelligent reflecting surface and inspection equipment unified scheduling model, and building a unified scheduling model for a multi-intelligent reflecting surface networking network; deducing a signal interference distribution analytic expression, solving a space measure function of a point process and determining heterogeneous station density based on an interference level; constructing a multi-intelligent reflector networking correlation model, and analyzing a link coupling factor; based on modeling of a link coupling factor, the link performance under the collaborative networking is studied; a cross-domain reconfigurable capability boundary is explored, and a spatial statistical average analysis method for coverage, capacity and mobility performance is innovated; an adjustable intelligent reflecting surface distribution dependence model is provided, and a semi-closed theoretical analysis expression of the user coverage rate is given based on a stochastic geometric tool.

The embodiment of the invention provides an intelligent metasurface accessory device and a terminal communication method, the accessory device is fixedly connected with a terminal or detachably connected with the terminal, the accessory device comprises a plurality of single intelligent metasurfaces, and the single intelligent metasurfaces are connected. Wherein the plurality of single intelligent metasurfaces comprise a folded state and an unfolded state; in the folded state, the accessory device is used for assisting the terminal to perform uplink communication; in the unfolded state, the accessory device is used for assisting the terminal and at least one of peripheral terminals of the terminal to perform uplink communication and / or downlink communication. Therefore, the terminal can be assisted to perform uplink enhancement by folding the plurality of single intelligent metasurfaces, and at least one of the terminal and the peripheral terminal can be assisted to perform uplink enhancement and / or downlink enhancement by unfolding the plurality of single intelligent metasurfaces, so that the communication environment and state of the terminal and / or the peripheral terminal can be improved, and the communication requirement can be met.

The invention discloses a phased-array antenna transmitting power weighting method and a phased-array antenna, and belongs to the technical field of phased-array antennas. The invention discloses a phased-array antenna transmitting power weighting method. The method comprises the following steps: acquiring an array surface weighted power distribution table of a phased-array antenna; determining a P-1 power value of each transmitting last-stage power amplifier chip based on the array surface weighted power distribution table; and selecting a corresponding transmitting last-stage power amplifier chip according to the determined P-1 power value to complete efficiency weighting of the phased-array antenna. According to the method, transmitting last-stage power amplifier chips with different P-1 power values are selected according to an array plane weighted power distribution table, all power amplifiers work in a saturated state, and the efficiency of the power amplifiers is the highest working state.

The utility model discloses a Doppler radio altimeter based on pulse coding. The Doppler radio altimeter mainly solves the problems that a traditional radio altimeter is low in detection precision and poor in stability. The device comprises a transceiver, an indicator, a transmitting antenna and a receiving antenna, the transceiver comprises a signal processing board, a microwave transmitting assembly, a microwave receiving assembly, an interface board, a power supply board and a mother board, and plug boards and assemblies are connected through the mother board; the signal processing board comprises a high-speed analog-to-digital converter, an FPGA module, an ARM module, a DDR3 memory and an external interface, and is used for completing generation of inter-pulse coded pulse signals, acquisition and preprocessing of echo signals, height tracking calculation and original data storage. The transceiver transmits pulse signals to the transmitting antenna to radiate the pulse signals to the ground, and the receiving antenna receives echo signals and then transmits the echo signals to the transceiver to complete data processing and then transmits height information to the indicator. According to the utility model, the accuracy and stability of output height information are improved, and the device can be used for aerospace aircrafts.

The invention discloses a low-power-consumption transmission method applied to a symbiotic radio system, which comprises the following steps: step 1, establishing a symbiotic radio system based on RIS, transmitting primary information to a primary receiver PRx by a primary transmitter, transmitting secondary information to a secondary receiver BRx by the RIS serving as a transmitter to modulate and reflect a primary signal, decoding the primary information by the PRx by using an ML detector, and transmitting the decoded primary information to a secondary receiver BRx; the BRx restores secondary information from the RIS using an energy detector. And step 2, based on the system model, establishing a transmitting power optimization problem of PRx primary information rate constraint and secondary receiver detection bit error rate (BER) constraint, for the problem, equivalently transforming the BER constraint, and decomposing the original problem into two similar sub-problems for solving. And step 3, replacing the non-convex PRx rate constraint with the proxy rate, and providing a method for iteratively solving the problem of transmitting beam forming and RIS coefficient alternate optimization. For an RIS-based symbiotic radio system, the method realizes information transmission and reduces the transmitting power.

The present invention belongs to the technical field of unmanned aerial vehicles, and discloses a demonstration type of automated strike police intelligent rotor drone, which includes: a solar power supply module, a video monitoring module, a main control module, a wireless remote control module, an obstacle ranging module, a target locking module, a search and positioning module, a paint spraying module, a voice warning module, and a display module. The present invention has a simple structure and is easy to install through the obstacle ranging module, and the infrared light will not be affected by the surrounding environment such as visible light, and the sensitivity is also high, and it has strong universality; at the same time, through the search and positioning module, when searching with the unmanned aerial vehicle, after searching for the search target, the flight altitude of the unmanned aerial vehicle and the transmission power of the antenna on the unmanned aerial vehicle can be reduced, and the search target can be located in the reduced search area, thereby improving the accuracy of the obtained search position.

A federated learning service deployment method and system based on end node residual energy perception, equipment and medium, the method comprising: constructing a corresponding federated learning time model and an end node energy consumption model for each end node according to the federated learning process; cloud gaming according to the federated learning time model and the end node energy consumption model; edge-end matching for end nodes participating in training; the system, equipment and medium are used for the federated learning service deployment method based on the end node residual energy perception; in the end node selection stage, a cloud gaming algorithm and an edge-end matching algorithm are designed, the end nodes participating in distributed training and their computing resource allocation are determined, the residual energy of the end nodes is introduced into the gaming revenue function, the end nodes with less residual energy select a lower CPU frequency, the edge nodes accessed by the end nodes and the transmission power allocation of the end nodes are determined, and the residual energy of the end nodes is introduced into the end node preference function, thereby reducing the end node computing energy consumption and realizing end node energy protection.

This invention provides an energy efficiency optimization method for the large-scale deployment of ultra-reliable low-latency (URLLC) devices, comprising: Step 1: Calculating the short packet collision probability and short packet reception failure probability of a single device, and calculating the packet loss rate of the device based on the calculated short packet collision probability and short packet reception failure probability; Step 2: Calculating the packet loss rate of each device, and grouping devices with similar communication environments into one category based on the calculated packet loss rate; Step 3: Optimizing the energy efficiency of all devices categorized in Step 2 using a deep reinforcement learning method. The beneficial effects of this invention are: 1. The method can effectively reduce the transmission power of sensing devices sending short packets and the number of times the same short packets are repeatedly sent, significantly improving the communication energy efficiency of URLLC devices and extending their battery life; 2. The method of this invention uses a classification method, which significantly shortens the training time of deep reinforcement learning.

The invention provides a UWB-based concrete protection layer thickness detection device, method and system, and relates to the technical field of concrete thickness detection. The concrete protection layer thickness detection device based on UWB comprises a UWB sensor which is used for transmitting a UWB pulse signal to a concrete protection layer and receiving a UWB pulse reflection signal reflected back from the concrete protection layer; and the controller is used for calculating the one-way propagation time of the UWB pulse signal in the concrete based on the time of transmitting the UWB pulse signal and the time of receiving the UWB pulse reflection signal, and calculating the thickness of the concrete protection layer in combination with the wave velocity of the UWB pulse signal. The method has the advantages of high positioning precision, high time resolution, good environmental interference resistance and low emission power requirement, and can comprehensively improve the detection precision.

The present invention relates to the field of power distribution automation technology, and discloses a characteristic current communication method applicable to the power field, and the steps are as follows: setting characteristic frequency, signal cycle and minimum signal transmission time; setting the single transmission time and total transmission time of characteristic sequence information bits, and designing characteristic sequence C0; the transmitting device transmits characteristic current; the receiving device detects the theoretical transmission signal characteristic frequency and sets the decoding sequence C1; the characteristic frequency of the received signal is detected to obtain Sc1' and Sc2'; Sc1' is judged to obtain C1'; the number of positions Ne where C1' and C1 have different values ​​is calculated; Sc2' is demodulated to obtain the trust degree En of C1'; if Ne≤En, the characteristic current reaches the receiving device; otherwise, it does not reach. The present invention is aimed at the current micro-current communication technology, and through the optimization of the transmission sequence and the improvement of the detection algorithm, the transmission power is reduced to 60% of the original scheme under the premise of not lower than the bit error rate of the current scheme, and the engineering practicability is strong.

This invention discloses a surface waveguide microstrip antenna for solid-state color center spin. The surface waveguide microstrip antenna includes an outer antenna, a middle antenna, and an inner antenna on a diamond substrate. Blind holes are formed on the substrate, and the diamond is nested within these holes, with the upper surface of the diamond flush with the upper surface of the substrate. The outer, middle, and inner antennas are all square ring-shaped and nested sequentially from the outside to the inside. Each of the outer and middle antennas has an opening on its side, located on opposite sides of their respective antennas. The outer, middle, and inner antennas together form the surface waveguide microstrip antenna with a resonant frequency of 2.87 GHz. Electromagnetic waves are transmitted between the surface waveguide microstrip antennas via radiation, generating resonance. This invention not only offers high power and high uniformity of the microwave magnetic field but also eliminates the need for additional flying wires, simplifying the installation process.

The invention discloses a characteristic current sampling circuit for topology identification of a low-voltage transformer area, which comprises a current transformer, a characteristic current filter and a sampling resistor, and is characterized in that the primary side of the current transformer receives current sent by sending equipment, the secondary side of the current transformer is connected with the characteristic current filter and the sampling resistor, and the current comprises characteristic current and power frequency current; the characteristic current filter is used for collecting characteristic current, and the sampling resistor is used for collecting the characteristic current or power frequency current; the characteristic current is converted into a sampling voltage after passing through a characteristic current filter and a sampling resistor, and the sampling voltage is used for topology identification of a low-voltage transformer area. According to the characteristic current sampling circuit, the characteristic current receiving sensitivity is improved, the characteristic current sending power can be reduced, the sending circuit cooling time is shortened, and the continuous working time of the sending circuit is prolonged.

The present disclosure relates to a data transmission method and device, electronic equipment, chip and medium, wherein the method comprises: transmitting a first message to a second device; the first message comprises first information and padding information; the padding information indicates second information; or the padding information corresponds to a first constellation point in a constellation diagram; the distance between the first constellation point and the center constellation point of the constellation diagram is less than or equal to a distance threshold; wherein in the case that the padding information indicates the second information, the padding of the padding information can transmit additional second information to the second device, and improve the network experience between devices; in the case that the padding information corresponds to the first constellation point in the constellation diagram, the first constellation point is close to the center constellation point of the constellation diagram, and the padding of the padding information can reduce the transmission power of the first message.

The invention provides a rate division multiple access signal transmission method based on construction interference and related equipment, which considers existence of an eavesdropping end, considers physical layer security, processes through a constructive interference algorithm, determines constructive interference construction conditions, processes in combination with an interference control algorithm, and determines eavesdropping constraint conditions. According to the method, the receiving signal of the eavesdropping end is controlled in the non-construction area, so that the eavesdropping end cannot receive important private signal data of each target user end in the construction area, and further the eavesdropping end cannot perform normal decoding, thereby ensuring the data security, avoiding the problem of data leakage, performing processing based on a power distribution algorithm of a genetic algorithm, and improving the processing efficiency. And the reduced transmission power which simultaneously meets the minimum rate requirement and the service quality requirement of the user is solved, so that the base station and the plurality of user sides are controlled to execute the signal transmission process according to the target power distribution strategy, and the problem of high energy consumption can be avoided.

The present invention discloses a method and device for modeling a complex indoor environment channel in a wireless body area network. The method comprises: (1) selecting a reference distance d0 between a transmitting and receiving antenna, obtaining a human body height h i and the transmitting antenna height h Tx and the receiving antenna height h Rx (2) establish a channel average path loss model; (3) collect path loss measurement values ​​at different test points d and p in the X-band; (4) fit the data obtained in step (3) to the model established in step (2), and substitute the parameters obtained by fitting into the model in step (2), which is the indoor environment channel model. The channel model established by the present invention is more accurate.

The application discloses a method and device used in a node for wireless communication. A first receiver receives first information, second information and first signaling, the first signaling is used to indicate a first time domain resource pool set, the first time domain resource pool set includes multiple time domain resource pools; the first receiver receives a first PDSCH group, the first PDSCH group includes at least one PDSCH; a first transmitter transmits a first PUCCH at a first transmission power, the first PUCCH carries at least one HARQ-ACK bit; wherein at least one time domain resource pool in the first time domain resource pool set constitutes a feature time domain resource pool subset, the first information is used to determine the feature time domain resource pool subset from the first time domain resource pool set; the time domain resource pools included in the feature time domain resource pool subset respectively include time domain resources occupied by the PDSCHs in the first PDSCH group.

The present invention discloses a collision analysis system and method for an autonomous driving vehicle based on big data. The collision analysis system comprises a transponder and a transmitter installed on the vehicle, an analysis module, an information generation module and a feedback receiving control module. The analysis module comprises a collision analysis module and a radio frequency signal analysis module. The transponder is used to receive a radio frequency signal carrying a first mixed information sent by other vehicles, the transmitter is used to send a radio frequency signal carrying a second mixed information to other vehicles, the collision analysis module is used to analyze the risk level of a collision of the vehicle, the radio frequency signal analysis module is used to analyze the radio frequency signal carrying the first mixed information received by the vehicle, and the information generation module generates the second mixed information sent to other vehicles according to the collision analysis module and the radio frequency signal analysis module.

The present invention discloses a distance sensor pixel array structure, a distance sensor and a working method. The distance sensor includes a transmitting end and a receiving end, and the receiving end includes a plurality of pixel units arranged in an array; some of the pixel units are irradiated by the light spots emitted by the transmitting end at normal power, and the irradiated pixel units are in an on state. Therefore, during operation, the on state of the transmitting end can be purposefully controlled, for example, only a part of the area is irradiated by the transmitting end, while other areas are not irradiated, so that the transmitting power can be greatly reduced, that is, the power consumption of TOF is greatly reduced, which promotes the popularization of TOF and indirectly promotes the popularization of AR and VR.

The utility model provides a communication module and electronic equipment. The communication module comprises a radio frequency transceiver, a power amplifier and an access module, and the access module is connected between the radio frequency transceiver and the power amplifier. The access module comprises at least one straight-through access, at least one attenuation access and a switch unit, the switch unit is used for selectively conducting a target access, so that the radio frequency transceiver and the power amplifier are connected through the target access, and the target access is one of the at least one straight-through access and the at least one attenuation access; wherein the attenuation path is provided with an attenuation network, and the attenuation network is used for carrying out attenuation processing on the power of a radio frequency signal output by the radio frequency transceiver and transmitting the radio frequency signal after attenuation processing to the power amplifier when the radio frequency transceiver and the power amplifier are connected through the attenuation path. The communication module can realize smaller transmitting power, is low in cost, and improves the product competitiveness.

The invention discloses a light emission power adjusting method of an optical detection device. The optical detection device is used for emitting an optical signal for detection. The light emission power adjusting method is used for adjusting the light emission power of an optical signal emitted by an optical detection device, and comprises the following steps: obtaining ambient light information of a scene where the optical detection device is located; determining an adaptive light transmitting power value according to the obtained ambient light information; and adjusting the light emission power of the optical detection device according to the adaptive light emission power value.

This application provides a vehicle-mounted communication terminal, a vehicle-mounted communication system, and a vehicle, relating to the field of vehicle networking technology. The vehicle-mounted communication terminal includes a processing component and a satellite short message component. The satellite short message component is connected to the satellite communication terminal of the processing component. A general-purpose integrated circuit card (GPIC) is built into the satellite short message component, containing a BeiDou user identifier. The processing component receives communication information and sends it to the satellite short message component. The satellite short message component sends the communication information and the BeiDou user identifier to the BeiDou satellite in short message format. The communication information includes receiving device information and specific communication content. The BeiDou user identifier is used to uniquely identify the vehicle-mounted communication terminal in the BeiDou network. This application can solve the problem of vehicles being unable to communicate when terrestrial communication networks are unavailable.

The present application belongs to the field of analog integrated circuit design, and specifically relates to an analog multiplexer interference suppression protection circuit for a precision signal link, aiming to solve the problems of overvoltage impact on power supply, signal transmission interference, and damage to the subsequent circuit of the traditional structure I / O port. The circuit includes N input channel circuits arranged in parallel and an output end detection and discharge circuit. The input channel circuit integrates input end detection, input end discharge, transmission switch, and central discharge functions. All circuits are composed of resistors, NMOS tubes, and PMOS tubes. Single-channel signal gating transmission is realized by regulating the control end signal of the input channel circuit. The detection circuit monitors signal abnormalities in real time and triggers the discharge circuit to quickly discharge the overvoltage spike or injected current through the ground loop. At the same time, the voltage is clamped and the protection is shunted when the gating channel is abnormal. This scheme avoids the impact on the power supply rail, reduces signal interference between channels, realizes input power failure isolation, does not require strict external power-up timing, significantly improves the precision and reliability of precision signal transmission, enhances the stability of devices and systems, and is suitable for analog multiplexer, analog switch, and other integrated circuits, and is suitable for smart driving, industrial automation, and other multi-scenario requirements.

An electromagnetic compatibility test device, comprising a shell, a placement table, a transmitting antenna and a base bracket; the bottom of the shell is connected to the tops of the two base brackets, the top of the left base bracket is connected to the bottom of the placement table through a connector, a radio wave intensity monitor is provided on the top of the placement table, the top of the right base bracket is connected to the bottom of the transmitting antenna through a connector, the right end of the shell is connected to the inflation end of an air pump through a pipe, and one end of the transmitting antenna is connected to the transmitting antenna control box through a connecting line. The inner aluminum foil of the shell of this design can effectively reflect radio waves, and most of the radio waves that are not directed to the test object will definitely pass through the second focus of the ellipse after reflection, thereby increasing the radio wave intensity at the test object, which can effectively reduce the transmission power required by the antenna, will not cause radio wave dispersion, and can suppress the impact of the escaped radio waves on the external environment of the device.

The application discloses a compensation method, device and equipment of a transmitting signal, a medium and a product, and relates to the technical field of positioning. The compensation method of the transmitting signal applied to an electronic device including a Beidou RDSS terminal module comprises the following steps: acquiring a beam of a GEO satellite; in the case of acquiring the beam of the GEO satellite, determining the average value of the Doppler frequency offset of the receiving signal and the average value of the Doppler frequency offset change rate according to the compensation control time interval of the transmitting signal and the time interval of the observation interruption; determining the first compensation value and the second compensation value corresponding to the Doppler frequency offset of the transmitting signal according to the average value of the Doppler frequency offset and the average value of the Doppler frequency offset change rate; and compensating the transmitting signal according to the first compensation value and the second compensation value. According to the embodiment of the application, the communication success rate of the Beidou RDSS terminal module can be improved.

The present invention discloses a fleet management system based on LoRA technology, the fleet management system comprises: a plurality of vehicle-mounted terminals, the vehicle-mounted terminals are provided with LoRA modules, computer modules, conversion circuit modules and terminal devices for transmitting information to vehicle personnel, the LoRA modules are wirelessly connected to external devices, the computer modules are connected to the LoRA modules, the conversion circuit modules are connected to the computer modules and terminal devices; a plurality of LoRA gateways, the LoRA gateways are connected to the LoRA modules; and a plurality of remote control platforms, the remote control platforms are connected to the LoRA gateways via the Internet. Compared with wireless transmission methods such as ZigBee, LoRa technology has low transmission power, longer transmission distance, more nodes allowed to be accessed, and is more suitable for remote dispatch management of vehicles.

The embodiment of the present application discloses a signal transmission method, the method comprising: obtaining a first signal-to-noise ratio of the first radio frequency signal during a process in which a first antenna of an electronic device receives a first radio frequency signal and the first antenna transmits a second radio frequency signal; wherein there is an overlap between the receiving frequency range of the first radio frequency signal and the transmitting frequency range of the second radio frequency signal; if the first signal-to-noise ratio is not within a signal-to-noise ratio threshold range, receiving the first radio frequency signal at a constant receiving power through the first antenna, and transmitting the second radio frequency signal at a reduced transmitting power through a selected antenna from the first antenna and the second antenna of the electronic device; wherein the reduced transmitting power is used to reduce the noise generated by the second radio frequency signal on the first radio frequency signal to improve the first signal-to-noise ratio. The embodiment of the present application also discloses a signal transmission device, an electronic device, and a storage medium.

The present invention proposes an information metasurface intelligent processing system applied to wireless communication of cell base stations. The intelligent processing system is a system combining scattering and radiation, mainly including an information metasurface, a base station, a feed antenna, and a central intelligent processor, which is suitable for maintaining communication with the base station antenna and user equipment in a specific area. The system directly codes and modulates the feed signal to form a multi-dimensional real-time direct surface information processing system in the time domain, frequency domain, and space domain; at the same time, it has a scattering function, covering the outer walls of community buildings, indoor walls, windows, etc., forming a set of distributed base stations, adaptively performing secondary regulation of space electromagnetic waves, solving the problems of multipath fading and path loss in wireless communication, improving communication quality, optimizing channel performance, reducing hardware complexity, and realizing a low-cost, low-power, and low-radiation intelligent wireless communication environment.

The invention discloses an energy-saving system and method for a 5G communication base station based on data analysis, and relates to the technical field of base station energy saving.The method comprises the steps that the transmitting power of the base station and the distance power function, the power heating function and the ventilation cooling rate of the model coverage distance are calculated; calculating a cooling threshold value in the base station; pairing adjacent base stations to form a same base station pair, and judging whether a single base station in the same base station pair needs to be cooled or not by using a cooling threshold value; calculating the same coverage distance in the same base station pair by using a distance power function, and calculating to obtain the power reduction amount of the cooling base station; calculating the amount of power needing to be reduced of a cooling base station; the actual power reduction amount of the cooling base station is obtained, and a cooling strategy of the cooling base station is formulated; and the temperature of the displacement base station is judged in real time, and when the displacement base station needs to be cooled, the cooling base station and the displacement base station are exchanged, so that the internal alternate cooling work of the same base station is realized.

The invention discloses a 16-7 probability forming method and device based on symbol-level labels, and the method comprises the steps: S1, carrying out the serial-to-parallel conversion of original data, and obtaining parallel bit data; s2, symbol-level label mapping is carried out on the parallel bit data, and parallel frequency domain signals are obtained; s3, carrying out IFFT (Inverse Fast Fourier Transform) on the parallel frequency domain signal to obtain a parallel time domain signal; and S4, shaping and filtering the real part and the imaginary part of the parallel time domain signal to obtain a symbol-level label probability shaping signal. The space utilization rate of the constellation is improved, the signal transmission power is remarkably reduced, and the transmission rate and channel capacity of the system are improved.