107 results about "Wireless signal strength" patented technology

This application provides a method for determining a wireless signal strength in an area, a computer-readable storage medium, and an electronic device. The method includes: obtaining building diagram information, wherein the building diagram information comprises a position of a target signal source, a target area, size information of one or more obstacles in the target area, type information of the one or more obstacles, and image calibration information; converting the building diagram information into a polar coordinate system; determining an attenuation amount of a target pixel based on the size information, the type information, the image calibration information, and a propagation path in the polar coordinate system, wherein the propagation path penetrates at least part of the one or more obstacles; and determining a signal strength of the target pixel based on a signal strength of the target signal source and the attenuation amount of the target pixel.

The invention relates to the technical field of panoramic lenses, and discloses a pairing method of a panoramic lens and the panoramic lens. The method comprises the following steps: a pan-tilt controller sends an equipment query frame to a panoramic lens and receives equipment identity verification data returned by the panoramic lens; sending a motion test sequence to the panoramic lens based on the equipment identity verification data, and receiving lens motion feature data fed back by the panoramic lens; calculating control delay compensation time according to the lens motion characteristic data; the holder controller monitors a wireless signal strength index between the holder controller and the panoramic lens in real time and inputs a handshake interval adjustment algorithm to obtain a handshake frame transmission time interval; and executing a pairing handshake process, establishing a compatibility mapping relationship between the controller protocol version and the lens protocol version, and generating wireless connection control parameters. According to the invention, automatic identity recognition between the holder controller and the panoramic lens is realized, manual pairing operation is not needed, and the intelligent level and the cross-brand interoperation capability of the holder control system are improved.

The invention discloses a voice control method, device and system based on intelligent equipment, equipment, a medium and a product. The method comprises the following steps: in response to a received target voice control instruction, obtaining a controllable equipment set; according to the actual control function in the received target voice control instruction and the wireless signal strength of each intelligent device, screening from the controllable device set to obtain a target intelligent device; and sending the text information or the control code associated with the target voice control instruction to the target intelligent device, so that the target intelligent device executes an operation associated with the target voice control instruction. According to the method and the device, the technical problems of high user learning cost and poor user use fluency caused by tedious operation in the prior art are solved, the use convenience and comfort are effectively improved on the basis of greatly simplifying the operation process, and a more intelligent and humanized home experience space is provided for the user.

The invention relates to the technical field of wireless lighting, and provides a wireless lighting control method and system, and the method comprises the steps: obtaining a wireless signal value of a wireless mobile terminal in real time, and obtaining the wireless signal intensity according to the wireless signal value; acquiring a signal intensity change rate and a wireless signal variance in a preset time window according to the wireless signal intensity; obtaining a basic signal intensity threshold value, and obtaining a real-time signal intensity threshold value according to the basic signal intensity threshold value, the signal intensity change rate and the wireless signal variance; and comparing the wireless signal intensity with the real-time signal intensity threshold value, and controlling the state of the lighting equipment according to the comparison result. According to the method, a dynamic signal strength threshold mechanism based on the signal strength change rate and the wireless signal variance is constructed by considering the wireless signal contrast representing the wireless signal fluctuation of the equipment and reflecting the environmental interference, the real-time signal strength threshold can be adaptively adjusted, the system robustness is improved, and the real-time performance of the system is improved. And frequent switching actions of the lighting switch are avoided.

The invention aims at disclosing a wireless cooperative lifting method for a plurality of lifting columns, and relates to the technical field of vehicle lifting control, and the wireless cooperative lifting method comprises n lifting columns; comprising the following steps that any one of n lifting columns is configured as a host, the host generates a random synchronous code, and n is larger than or equal to 6; the random synchronous codes are input into n-1 lifting columns respectively, the n-1 lifting columns are configured as slave machines, and the slave machines are numbered according to the pairing sequence; the host and the ith slave are arranged in a first column, i is an even number, the mth slave is arranged in a second column, and m is an odd number; the host sends a synchronous lifting signal through the first wireless module or the second wireless module; the method has the technical effects that the strongest wireless signal synchronization path is selected, the synchronization of the lifting signals among the plurality of lifting columns is ensured, the blockage of the height synchronization signal of one lifting column is avoided, and the safety is ensured.

The invention discloses a dairy cow oestrus recognition system based on attitude angle and track fusion of a low-power-consumption Bluetooth ear tag. The dairy cow oestrus recognition system comprises an attitude angle acquisition terminal module, a track behavior reconstruction module, a high-frequency sampling trigger module, an edge recognition and preprocessing module, a fusion judgment and early warning output module and a cloud platform collaboration module. The system periodically collects three-axis attitude angle data through Bluetooth ear tag equipment worn on the ears of a dairy cow, reconstructs a virtual track point string in combination with wireless signal intensity, and identifies behavior trends and spatial path characteristics of individuals respectively; in a suspected state, a short-time high-frequency sampling window is automatically triggered to capture subtle disturbance behaviors, and recognition of complex behaviors such as silent oestrus, short-time oestrus and passive oestrus is achieved. The system adopts a multi-channel collaborative recognition and fusion voting mechanism to output an oestrus judgment result, has the advantages of low power consumption, high adaptation, deployability, expandability and the like, and is suitable for behavior monitoring and intelligent breeding management of a large-scale cow farm.

The invention discloses a transparent transmission type metasurface array antenna which comprises a feed source oscillator and a transparent metasurface structure. The feed source oscillator is arranged below the transparent metasurface structure and is used for transmitting or receiving electromagnetic waves; the transparent metasurface structure comprises six layers of artificial electromagnetic metasurfaces stacked in parallel, each artificial electromagnetic metasurface comprises a transparent medium substrate and a metasurface array arranged on the upper surface of the transparent medium substrate, and the metasurface array comprises a plurality of conductive pattern units arranged periodically and is used for regulating and controlling the phase of transmission electromagnetic waves. According to the embodiment of the invention, phase regulation and control alignment can be carried out on electromagnetic waves without shielding light, and the method has efficient regulation and control capability on the wavefront of the electromagnetic waves, so that the indoor wireless signal intensity is enhanced, the cost and power consumption of large-scale antenna configuration are reduced, and the economical efficiency and practicability of an antenna system are improved.

An example method for determining the distance between the network devices thereby enhancing the accuracy of location determination is presented. In one example implementation, the proposed method entails training, during a training phase, a machine learning (ML) model based on test environmental condition metrics about the network devices. Further, during an inference phase, a network controller may first determine a coarse distance between a pair of network devices using wireless signal strength between the pair of network devices, and then finetune the coarse distance to generate a refined distance using a trained ML model. Further, using the refined distance, the network controller may more accurately determine the location of a network device of the pair of network devices whose location was unknown.

The invention relates to a data sending method and device, computer equipment, a storage medium and a program product, and particularly relates to the field of communication. The method is applied to a data transmitting end, and comprises the following steps: acquiring wireless signal strength of a first communication network and a wireless negotiation rate with wireless access equipment; determining an interference state of the first communication network and a first window value of a congestion window in the first communication network according to the wireless signal strength and the wireless negotiation rate; acquiring a congestion state of a second communication network and a second window value of a congestion window in the second communication network; determining a target window value according to the interference state, the congestion state, the first window value and the second window value; and sending the target data packet to a data receiving end according to the target window value. By adopting the method, the congestion condition of the wireless communication network can be sensed according to the wireless signal strength and the wireless negotiation rate, and the network congestion problem caused by the fact that the congestion condition of the wireless communication network is not sensed in time is reduced.

Aspects of the subject disclosure may include, for example, performing signal measurements in a wireless network. An area of interest within a coverage area of the communications network may be identified based on the signal measurements. Zones within the area of interest may be further identified. Additional test measurements within the area of interest may be requested. Test devices may be dispatched to locations within the area of interest to perform the additional test measurements. Other embodiments are disclosed.

The embodiments of the present disclosure disclose an information display method, device, electronic device, and computer-readable medium. A specific implementation of the method includes: determining whether an image of an item contains a QR code image; determining whether the target terminal has location positioning turned on; in response to determining that the target terminal has not turned on location positioning, searching for wireless signals in a first target area to obtain at least one wireless signal information; filtering out wireless signal information including wireless signal strength that meets the filtering conditions from the at least one wireless signal information as target wireless signal information; determining location information that matches the signal transmitter identifier included in the target wireless signal information as first location information; filtering out location information whose corresponding location is located in a second target area as second location information; generating a location information list; and displaying the location information list on the target display interface. This implementation improves the accuracy of store address positioning.

A wireless short hop assembly includes a transmitter antenna and an integrated receiver / pulser module. A receiver antenna and a pulser assembly are consolidated into the receiver / pulser module. The transmitter antenna is configured to transmit, via magnetic flux induction, a magnetic carrier wave conveying a wireless signal to the receiver antenna. When the wireless short hop assembly is deployed on subterranean drilling bottom hole assembly (BHA) such that a shock reduction tool is interposed on the BHA between the transmitter antenna and the integrated receiver / pulser module, the integrated receiver / pulser module positions the receiver antenna closer to the shock reduction tool and the transmitter antenna than if the receiver antenna and the pulser assembly were discrete. The wireless signal as received by the receiver antenna is stronger and more stable than if the receiver antenna and the pulser assembly were discrete.

An attachment management system comprises a working vehicle, a plurality of attachments, a mobile terminal, and a plurality of communication tags fixed on the attachments to communicate with the mobile terminal through a wireless signal that is compliant with a near field communication standard. The mobile terminal is switchable between a first mode to receive the wireless signals from the communication tags and a second mode to receive the wireless signals from the communication tags and to transmit attachment information. The mobile terminal displays, in the first mode, tag identifiers and a plurality of pieces of attachment information stored in the tag memories of the communication tags, and in the second mode, the tag identifiers and the plurality of pieces of attachment information stored in the tag memories of the communication tags which transmit the wireless signals each having signal intensity equal to or greater than a predetermined threshold.

An electronic device according to various embodiments disclosed in this document may include a display, a camera, and a processor operatively connected to the display and the camera. The processor may display augmented reality on the display based on an image captured by the camera, display a point moving in the augmented reality on the display in conjunction with the movement of the electronic device, recognize a point selected in the augmented reality, display a guide area including the selected point so that the point moves within a specific area, store sensor information including a geomagnetic value measured while the point moves within the guide area, store wireless signal strength information measured while the point moves within the guide area, and correct the geomagnetic value included in the sensor information using a reference direction and the direction of the electronic device at the time of measurement of the geomagnetic value. Various other embodiments may also be possible.

A waypoint may be automatically created by monitoring network wireless signal strength to assist a user of a mobile device in a non-city location in finding a previous location with known network connectivity and making an emergency call. In some embodiments, a backtracking route to a closest previous location with network connectivity is displayed on a mobile device. In some embodiments, for privacy considerations, access to waypoint information stored in a secure storage / database is restricted based on the determination of location status, and backtracking routes are displayed in stages.

The application discloses an indoor and outdoor seamless positioning method, system, device and medium, and relates to the technical field of information systems.The method comprises the following steps: acquiring the wireless signal strength of a current positioning point; judging the area type where the current positioning point is located according to the wireless signal strength; when the current positioning point is located in an indoor area, adopting a WiFi position fingerprint positioning technology to determine the position coordinates of the current positioning point; when the current positioning point is located in an outdoor area, adopting a GPS positioning technology to determine the position coordinates of the current positioning point; and when the current positioning point is located in an indoor and outdoor boundary area, adopting an indoor and outdoor fusion positioning technology based on a KNN algorithm to determine the position coordinates of the current positioning point.The application can realize the smooth transition and seamless connection of indoor and outdoor positioning.

The utility model provides a repeater, the repeater is connected with a wireless angle detector, the repeater is used for enhancing and prolonging the transmission distance of the wireless angle detector, the repeater comprises a connecting pipe body, a first transmit-receive part and a second transmit-receive part, the connecting pipe body is used for being connected with the pipe body of the wireless angle detector, and the first transmit-receive part is used for being connected with the pipe body of the wireless angle detector. A mounting cavity is formed in the connecting pipe body; the first transmitting-receiving part is mounted in the mounting cavity, and the first transmitting-receiving part is located at one end, close to the pipe body of the wireless angle detector, of the connecting pipe body; a first transceiving part of the first transceiving part is in wireless connection with the wireless angle detector, and the first transceiving part is used for receiving and transmitting information of the installation angle of the borehole stress meter detected by the wireless angle detector. The repeater effectively solves the technical problems that when the drilling depth of a wireless angle detection device in the prior art is increased, the wireless signal strength is gradually weakened, so that the positioning precision of the angle detection device is influenced, and the actual installation position of a borehole stress meter cannot be accurately determined.

The present invention belongs to the field of mobile communication technology, and specifically relates to a method and system for creating a geographic fence suitable for preventing young children from getting lost. The method includes: determining an area to be monitored, dividing the area to be monitored into multiple grid areas; setting a wireless network transmission module in the grid area where the center of the area to be monitored is located; using a mobile terminal carried by the young child, collecting location information and signal strength information based on wireless signal strength; within the area to be monitored, based on the collected signal strength information, if the wireless signal strength of a certain grid area is equal to a preset threshold, it is determined to be a geographic fence boundary point; connecting each geographic fence boundary point into a closed loop to form the activity boundary of the young child; establishing a monitoring mechanism, and automatically triggering an alarm when it is shown that the young child is about to cross the activity boundary. This method improves the accuracy and real-time performance of monitoring, and effectively solves the problem of inaccurate positioning indoors or in shielded environments.

The invention discloses a dairy cow oestrus recognition method based on attitude angle and trajectory fusion, and aims to solve the problems of recognition lag, high behavior expression heterogeneity, high energy consumption and the like in the existing oestrus recognition technology. According to the method, three-axis attitude angle data (a yaw angle, a pitch angle and a roll angle) are collected through a sensing terminal worn on the body surface of a dairy cow, and behavior trend characteristics of the dairy cow are extracted in combination with a periodically constructed virtual track point string generated based on wireless signal intensity (RSSI) or equivalent signals. The system runs in parallel through three channels of low-frequency attitude angle trend recognition, track behavior recognition and high-frequency perturbation action recognition, and outputs an oestrus recognition result by adopting a fusion judgment mechanism. And meanwhile, an intermittent high-frequency sampling mechanism is introduced, so that the balance between high-sensitivity identification and power consumption control is realized in a suspected oestrus state. The method does not need to introduce complex signal sources such as acceleration, images and sound, is high in recognition precision and low in deployment cost, is suitable for intelligent monitoring requirements of cow oestrus in a large-scale pasture, and also has the capability of identifying and migrating oestrus to other ruminants.

The invention discloses a data transmission control method and device, electronic equipment and a storage medium, and the control method comprises the steps: determining the first wireless signal intensity of wireless connection between a second vehicle and a router when determining that the router wirelessly accesses the second vehicle and starts data downloading; when it is determined that the first wireless signal strength is the first signal strength grade, the target first vehicle corresponding to the weakest second wireless signal strength in the at least one second wireless signal strength is controlled to enter a dormant state, and wireless connection between each first vehicle and the router corresponds to one second wireless signal strength. According to the method, after the router accesses at least one first vehicle, if the router accesses the second vehicle and the signal wirelessly connected with the second vehicle reaches the first signal strength level, the target first vehicle and the router are controlled to enter the dormant state under the condition that the connection is maintained, so that the transmission of vehicle data is accelerated on the whole; and the transmission efficiency of data transmission is improved.

This invention discloses a method and device for rapid location of mobile terminals involved in crimes, specifically relating to the field of wireless signal positioning technology. It involves setting sampling points at the crime scene to acquire wireless signal strength, direction of arrival, and sampling coordinates; performing peak extraction and directional clustering to generate candidate location points; performing micro-displacement re-measurement around the candidate location points; determining the boundary orientation of obstructions based on the peak migration trajectory of the re-measured signal strength; distinguishing between leakage and reflection candidate points by registering the directional changes of the candidate location points with the boundary orientation of the obstructions; determining the terminal entity candidate region based on the asymmetric attenuation characteristics of the wireless signal strength at leakage candidate points; and combining this with consistency verification between the terminal entity candidate region and the reflection candidate points, thereby achieving rapid and accurate location of the mobile terminal involved in the crime. This invention effectively improves the accuracy and efficiency of locating mobile terminals involved in crimes.

The invention belongs to the technical field of construction project management and cloud communication, and discloses a construction project management cloud server communication method based on AI big data, and the method specifically comprises the following steps: 1, collecting and preprocessing multi-dimensional state data; network environment data of a construction site and working state data of terminal equipment are collected in real time by deploying a network detection node and an equipment end communication module through a cloud server end, and the network environment data comprise bandwidth, delay, packet loss rate, jitter, wireless signal strength and network topology connection state of each candidate communication path; the equipment working state data comprises an equipment type, a working mode, a to-be-transmitted data volume and a data priority. Dynamic adaptation of communication parameters of the construction project management cloud server is achieved through the AI big data technology, the problem that existing static configuration cannot cope with violent network fluctuation and equipment state dynamic change on a construction site is solved, and the reliability, the real-time performance and the resource utilization rate of communication are remarkably improved.

The invention discloses a wireless network indoor positioning method, system and device and a medium, and belongs to the technical field of wireless communication, and the method comprises the steps: obtaining wireless signal intensity data, and determining a training data set according to the wireless signal intensity data; obtaining a convolutional neural network according to the training data set, and determining a feature encoder; obtaining a support set sample and a query set sample, and generating a feature representation of the support set sample and a feature representation of the query set sample through the feature encoder in combination with the support set sample and the query set sample; and calculating a category prototype according to the feature representation of the support set sample, and determining the category attribution of the query set sample according to the feature representation of the query set sample and the category prototype. According to the method, through combination of cosine similarity screening and small sample learning, on the premise of keeping the positioning precision, the data demand quantity can be reduced, the new scene deployment period can be shortened, and meanwhile, the cross-device robustness and the environment adaptability can be improved.

The invention discloses a wireless signal strength adjusting method, electronic equipment and a warehousing system. A control device periodically obtains wireless gateway transceiving rate data and received signal strength indication data corresponding to a target intelligent device; determining a target adjusting device from a plurality of adjusting devices used for bearing a wireless gateway antenna under the condition that the wireless gateway transceiving rate data and the received signal strength indication data obtained in any period do not meet the preset wireless signal strength requirement; and controlling the target adjustment equipment to carry the wireless gateway antenna to execute adjustment operation until the latest acquired wireless gateway transceiving rate data and received signal strength indication data meet the preset wireless signal strength requirement. The response time of wireless signal strength adjustment is shortened, the adjustment efficiency is improved, the strength of the wireless signal received by the intelligent equipment is improved, manual intervention is reduced, the self-adaptive optimization capability of a wireless communication link is improved, and the task continuity of the intelligent equipment is guaranteed.

The invention relates to an indoor wireless signal strength prediction method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: according to a three-dimensional model of an indoor area, constructing an energy flow diagram corresponding to a source node, which is used for representing wireless signal propagation paths from the source node to each target node and a wireless signal energy attenuation relationship of each wireless signal path; the target node is associated with a plurality of receiving points; acquiring a plurality of wireless signal propagation paths from the source node to each target node according to the energy flow diagram, and determining a target propagation path from the plurality of wireless signal propagation paths; wherein the contribution degree of the target propagation path to the signal intensity of the target node meets a preset condition; and based on the target propagation path, determining a ray emission direction of a receiving point associated with the target node and performing ray tracing to obtain predicted wireless signal intensity of the receiving point associated with the target node. By adopting the method, the signal strength prediction efficiency can be improved.

The embodiment of the invention provides a control method and device of a mobile storage device, electronic equipment and a computer readable storage medium, and relates to the field of smart home. The method comprises the following steps: acquiring an image frame acquired by a camera of the mobile storage device at a current time step, and converting a pixel coordinate into a first coordinate in a world coordinate system; acquiring the wireless signal strength of the terminal held by the user at the current time step, and acquiring a second coordinate of the landmark in the world coordinate system; the first coordinate and the second coordinate are fused according to the first confidence coefficient and the second confidence coefficient, and the displacement direction of the mobile storage device is obtained according to the corrected coordinate and the real-time coordinate of the mobile storage device; and acquiring point cloud data acquired by the laser radar at the current time step, and determining the displacement speed of the mobile storage device according to the distance. According to the embodiment of the invention, through combination of the image, the signal intensity and the point cloud data, the mobile storage device can automatically follow the user.

This invention discloses a spatiotemporal synchronous high-precision positioning method and system based on multi-sensor fusion, belonging to the field of positioning technology. The method includes the following steps: Step 1: Acquiring images from a visible light camera, a 3D point cloud coordinate image from a ToF depth camera, angular velocity and acceleration from an inertial measurement unit, and wireless signal strength from a wireless signal module; Step 2: Based on a pre-calibrated homogeneous transformation matrix, reprojecting the 3D point cloud coordinate image acquired by the ToF depth camera onto the image plane of the visible light camera to obtain spatially aligned coordinates; Step 3: Based on the signal strength indication received by the wireless signal module, calculating and correcting the distance observation value using a nonlinear ranging model to obtain the corrected distance observation value. This invention effectively solves the inherent defects of single-sensor positioning in complex environments through a complete spatiotemporal synchronization and multimodal data fusion framework.

The utility model discloses an automobile control module testing device, which comprises a shell, a battery, a power supply control module, an antenna module, a main control module and a detection signal prompting module are arranged in the shell, and the main control module is respectively connected with the power supply control module, the antenna module and the detection signal prompting module; keys are arranged on the surface of the shell and are respectively connected with the power supply control module and the main control module; the antenna module is used for detecting a wireless signal of a vehicle key induction area and sending the wireless signal to the main control module; the detection signal prompt module outputs a prompt signal according to the control signal of the main control module, and the prompt signal can indicate the wireless signal intensity sensed by the antenna module; the battery supplies power to the whole device through the power supply control module and the power supply module, and the power supply control module controls on-off of a power supply circuit from the battery to the power supply module according to signals of the keys and power supply control signals of the main control module. According to the utility model, a user can be effectively helped to find the position of a vehicle key sensing area so as to check the failure reason of the sensing key.

A method of reducing power consumption of a first wireless communication device is described. A charge level of a battery associated with the first wireless communication device is monitored. A wireless communication session between the first wireless communication device and a second wireless communication device is maintained. Based at least in part on the charge level of the battery being within a low battery threshold range, a wireless signal strength associated with the wireless communication session is monitored. Based at least in part on the wireless signal strength reaching a power saving threshold that is above a minimum connection threshold for maintaining the wireless communication session, a power saving action associated with a wireless interface that supports the wireless communication session is performed.

The invention provides a wireless access point switching method and device, equipment, a storage medium and a program product. The method comprises the following steps: determining the wireless signal strength of a target wireless access point AP accessed by a target communication node STA; under the condition that the wireless signal strength is lower than a historical switching threshold value, determining a candidate AP set based on historical associated APs of the target STA; based on a Wi-Fi fingerprint database constructed by historical Wi-Fi information of the historical associated APs, determining the association income of each AP in the candidate AP set; and based on the association income of each AP in the candidate AP set, determining an AP to be switched in the candidate AP set, and switching the target AP accessed by the target STA to the AP to be switched. According to the invention, the parameter association income of the switching AP is determined through the constructed Wi-Fi fingerprint database, and then the access AP of the target STA is switched to the to-be-switched AP with better association income, so that the AP switching accuracy and the Wi-Fi network quality are improved.