62 results about "Indoor antenna" patented technology

The invention relates to the field of remote sensing unlocking, and discloses a differential positioning directional mistaken touch prevention remote sensing intelligent door lock device and a remote sensing unlocking method, and the device comprises an outdoor antenna which is used for receiving a signal in an outdoor preset effective range; the indoor antenna is used for receiving signals indoors; the Bluetooth receiving module is used for extracting an outdoor signal strength value and an indoor signal strength value; the PCBA control board is used for calculating a time difference value; when the real-time difference value is greater than a preset threshold value, determining that the transmitting end is outdoor; when the transmitting end is located outdoors and within a preset effective range, an unlocking instruction is sent out; and the door lock motor is used for executing the unlocking action of the intelligent door lock according to the unlocking instruction. The directional receiving design is adopted by the outdoor antenna, signals are received outdoors in a preset effective range, it is ensured that unlocking can be triggered only when the transmitting end is located in a specific area in front of the outdoor space, the problem of mistaken unlocking is avoided, and the safety of the door lock is improved.

The invention belongs to the technical field of antennas, and provides an E-plane decoupling two-unit metasurface indoor antenna, which comprises a first substrate structure and a second substrate structure which are stacked, wherein the first substrate structure is composed of a metasurface radiator, a first substrate and a bottom plate which are stacked in sequence; the metasurface radiator is sequentially provided with a first patch group, a second patch group and a third patch group from the two sides to the middle, and the third patch group is used for forming radiation edges on the surfaces of the two sides. The third patch group serves as a common patch group of the first patch groups on the two sides to form two separated radiation edges, each radiation edge corresponds to the first patch group on one side, when a decoupling structure is added to the third patch group shared in the middle column, radiation of the respective antenna radiation edge is not affected, and the radiation efficiency of the antenna is improved. Therefore, the influence on the impedance matching performance and the radiation performance is reduced.

A system and method for providing reliable, legally compliant access to geographically restricted ATSC television signals via user-owned devices hosted in a datacenter. The invention verifies the physical address of each applicant to ensure eligibility within the designated market area before installation. It eliminates the need for rooftop or indoor antennas, resolving common ATSC reception challenges, including interference, terrain obstruction, and lightning risks. Designed for ease of use by non-technical users, the system provides consistent high-quality reception through a managed datacenter infrastructure. The invention complies with legal boundaries set by the U.S. Supreme Court's ruling in ABC v. Aereo by ensuring individualized device ownership and avoiding centralized retransmission. An optional encrypted group addressing mode further reduces energy and hardware redundancy while enforcing regional access through a conditional access system with access limited to persons with validated addresses and members of the datacenter.

An In-Building Communications system is disclosed which permits communication in tunnels, underground parking garages, tall buildings such as skyscrapers, buildings having thick walls of concrete or metal, and / or any building which has communication dead zones. The invention includes a portable bi-directional amplifier (BDA) system, an outdoor antenna system attached to the building or independently mountable, an indoor antenna system attached to the building or independently mountable inside the building, and a standardized, In-Building Communications Interface Box (IBCIB) affixed preferably to the exterior of the building. The IBCIB communicates with antenna systems attached to the building. Emergency response personnel carry portable outdoor and indoor antenna systems and a portable, battery-powered, BDA system which may be independently deployed or connected to the IBCIB during an event such as a fire, earthquake, an act of terrorism, or whenever radio coverage enhancement is required.

The invention relates to the technical field of deep learning, in particular to an indoor antenna system transmitting power prediction method based on deep learning, and the method comprises the steps: building the communication between a digital beam controller and an antenna in a target place, and controlling the overall transmitting power of an antenna unit; a training data set containing multiple sets of training data is obtained, the training data comprises the passenger flow density and the corresponding real-time overall transmitting power, and the final optimal overall transmitting power corresponding to the passenger flow density in each set of training data is calculated based on the training data and a preset simulation model; training a preset neural network model to obtain a power prediction model; the passenger flow density in the target place is obtained and input to the power prediction model, the optimal overall transmitting power is output, and the digital beam controller generates corresponding digital control signals according to the optimal overall transmitting power and sends the digital control signals to all the antenna units. According to the invention, efficient management of the indoor antenna system can be realized.

The invention provides a low-power-consumption passive indoor distribution state monitoring method and system, the method is applied to the system, the system comprises a low-power-consumption passive indoor distribution state monitoring device and a background, and the device and an indoor distribution antenna in a DAS system are correspondingly arranged; the device comprises a directional coupler, a filter, a signal conversion module, a state monitoring module, a communication module and a controller. A first transmission line of the directional coupler is connected in series in a feeder line of an indoor distribution antenna. In the method, the directional coupler collects a radio frequency power signal of the indoor distribution antenna and converts the radio frequency power signal into a voltage signal through a filter and a signal conversion module; and if a preset wake-up condition is met, the controller wakes up the state monitoring module and the communication module, acquires a voltage signal to determine an abnormal detection result of the indoor distribution antenna, determines state detection information of the indoor distribution antenna and uploads the state detection information to a background, and the background determines a power detection result of the DAS system, so that antenna device-level fault monitoring and long-time standby are realized.

The invention discloses a broadband dual-polarization indoor antenna with symmetrically broadened wave beams. An orthogonal embedded balun is located between an orthogonal dual-polarization printed dipole and a square metal ground; a bottom end plug pin of each balun is used as a signal feed port, and a top end plug pin of each balun is correspondingly inserted into the rectangular through holes of the pair of dipoles respectively; the four cross-shaped edgefold metal strips are respectively supported above the orthogonal dual-polarization printed dipoles by the support columns and are respectively arranged end to end along the polarization direction of the two orthogonal dipoles; and the four trapezoidal right-angle bent plates are distributed at four opposite angles of the orthogonal dual-polarization printed dipole, and the bottoms of the trapezoidal right-angle bent plates are connected with the square metal ground. According to the invention, the symmetrically distributed cross-shaped edgefold metal strips and the trapezoidal right-angle bent plates act on the orthogonal dual-polarization printed dipoles, and the two plates are used for broadening symmetrical wave beams of high-frequency and low-frequency E-planes and H-planes and expanding impedance matching bandwidth. And relatively wide double-sided symmetric beam broadening bandwidth and impedance matching bandwidth are realized.

The invention discloses an unmanned aerial vehicle self-destruction measure ground verification method and system. The method comprises the following steps: configuring an instruction self-destruction measure and an autonomous self-destruction measure on the unmanned aerial vehicle; setting a safe airspace for testing on the ground; injecting boundary information of the safe airspace into a flight control system of the unmanned aerial vehicle; a GNSS transponder is used for providing simulated satellite positioning signals for the unmanned aerial vehicle, and the GNSS transponder comprises an outdoor antenna, an indoor antenna and a host; dynamically simulating the position change of the unmanned aerial vehicle relative to the safe airspace by moving the outdoor antenna so as to construct a test scene in which the unmanned aerial vehicle crosses the safe airspace; and based on the test scene, respectively carrying out ground verification on the function validity of the instruction self-destruction measure and the autonomous self-destruction measure. According to the invention, an airplane border crossing scene is dynamically simulated through the movable GNSS transponder, comprehensive, convenient and safe ground verification of instruction self-destruction and autonomous self-destruction measures under multiple working conditions is realized, and the self-destruction reliability is guaranteed.

The utility model relates to the technical field of antennas, in particular to a practical multi-frequency combined glass fiber reinforced plastic antenna, which is characterized in that an antenna module is arranged inside an antenna shell, a radio frequency connector is connected with the antenna module through a radio frequency cable, and a flange plate is arranged between the antenna shell and the radio frequency connector and is used for fixedly mounting an antenna; the antenna shell comprises a rubber cap, a glass steel pipe and an aluminum pipe, the rubber cap is fixedly installed on the top of the glass steel pipe through glue, the tail of the glass steel pipe is sleeved with the aluminum pipe and fixed through glue to form a first inner cavity, and the antenna module is arranged in the first inner cavity and wrapped with a foam pad. Compared with the prior art, the practical multi-frequency combined glass fiber reinforced plastic antenna provided by the utility model not only can provide a wider frequency range and adapt to various types of equipment, but also can have good antenna performance, so that the practicability is greatly improved, and the antenna is more firmly mounted by adopting a flange plate mounting mode, so that the antenna can be positioned on a central shaft even in a vibration state, and the service life of the antenna is prolonged. The joint breakage is avoided.

The application relates to the technical field of wireless communication, and discloses a three-frequency wideband room-dividing antenna with a trap structure, which comprises a first radiating unit, a first substrate, first radiating structures and first feeding structures which are arranged on two sides of the first substrate, a second radiating unit, a second substrate, second radiating structures, second feeding structures and a trap structure, wherein the second radiating structures and the second feeding structures are arranged on two sides of the second substrate, the second radiating structures comprise four second radiating arms which are arranged in an angular symmetry, the second feeding structures comprise two second feeding branches which are arranged in a cross, the middle parts of the second feeding branches are arranged opposite to two adjacent second radiating arms, and the two ends of the second feeding branches are arranged opposite to the other two second radiating arms, the middle part of each second feeding branch is provided with a feeding point, and the trap structure is a metal line arranged on the second substrate and surrounding the outer periphery of the second radiating structures. The application has the advantages of small volume, support for 2G / 3G / 4G / 5G frequency bands, and the function of a trap frequency band of 2.9-3.1 GHz.

This application relates to the field of deep learning technology, and particularly to a method for predicting the transmission power of an indoor antenna system based on deep learning, including establishing communication between a digital beam controller and antennas in a target venue and controlling the overall transmission power of antenna units; obtaining a training data set containing multiple groups of training data, where the training data includes passenger flow density and its corresponding real-time overall transmission power, and calculating the final optimal overall transmission power corresponding to the passenger flow density in each group of training data based on the training data and a preset simulation model; training a preset neural network model to obtain a power prediction model; obtaining the passenger flow density in the target venue and inputting it into the power prediction model to output the optimal overall transmission power, and the digital beam controller generating corresponding digital control signals according to the optimal overall transmission power and sending them to all antenna units. This application can achieve efficient management of the indoor antenna system.

The application provides a co-boresight dual-polarized indoor antenna and a communication device, the co-boresight dual-polarized indoor antenna comprising a vertical polarization antenna, a horizontal polarization antenna and a feeding structure, the vertical polarization antenna comprising a metal floor, a triangular metal plate, a plurality of grounded metal columns and a first copper cladding layer, the triangular metal plate and the plurality of grounded metal columns being arranged between the metal floor and the first copper cladding layer; the horizontal polarization antenna comprising a double-layer dielectric plate and a slot array, the bottom of the double-layer dielectric plate being covered with copper to form the first copper cladding layer, and the slot array being arranged on the top of the double-layer dielectric plate; the horizontal polarization antenna and the vertical polarization antenna are arranged in a co-boresight mode, the structure is simple, and the volume is small; the feeding structure comprises a first feeding structure and a second feeding structure, the first feeding structure being connected with the vertical polarization antenna, and the second feeding structure being connected with the horizontal polarization antenna; the first feeding structure and the second feeding structure are arranged in a non-overlapping mode on the metal floor, so that coupling interference is avoided.

1. The name of the design product: indoor antenna (DUA-25). 2. The use of the design product: receiving television signals. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The utility model discloses a support structure of indoor antenna, including support base, a plurality of universal wheels are fixedly installed to support base lower extreme, angle adjusting device is fixedly installed to support base upper extreme, angle adjusting device upper fixed mounting has the adjusting seat, the height adjusting device is fixedly installed to adjusting seat upper end, the antenna device is fixedly installed to height adjusting device upper end, the controller is fixedly installed to adjusting seat right -end middle part. The utility model discloses a support structure of indoor antenna, through servo motor no.

The present application provides an indoor terminal positioning method, system, device and electronic device. The method includes: in response to receiving a satellite navigation signal forwarded by a group of indoor antennas among multiple groups of indoor antennas, determining the estimated position of an indoor point of interest corresponding to the group of indoor antennas among multiple indoor points of interest based on the satellite navigation signal; taking a layout position matching the estimated position among the layout positions of the multiple indoor points of interest as the regional position, and taking a group of indoor antennas corresponding to the layout position among the multiple groups of indoor antennas as the adjacent antenna group; based on the regional position, the indoor prior map and the inertial navigation information obtained by the terminal in real time, using a particle filter algorithm with the terminal position as a particle, predicting multiple first positions of the terminal and multiple first weights corresponding to the multiple first positions respectively; and calculating the weighted sum of the multiple first positions according to the multiple first weights as the second position of the terminal.

The mobile phone signal amplifier comprises an indoor antenna interface, an outdoor antenna interface, a duplexer, a multi-stage signal amplifier, a surface acoustic wave filter, a signal strength detector, a radio frequency switch, a power supply module, a current detector, a temperature sensor, an operational amplifier, a microcontroller, a USB interface and a test interface. In addition, a display key board, an optional accessory power supply box and an antenna front end amplification module are also included. The outdoor antenna interface 1 is connected with the duplexer 3, the indoor antenna interface 2 is connected with the duplexer 4, an uplink and a downlink are connected between the duplexer 3 and the duplexer 4, and the uplink and the downlink are sequentially connected with the signal amplifier 5, the signal amplifier 6, the radio frequency attenuator 7, the signal amplifier 8, the signal amplifier 9 and the radio frequency switch 10. And a surface acoustic wave filter is connected between the amplifiers. All the components are integrated on the front face and the back face of a PCB. The mobile phone signal amplifier has multiple power supply modes including outdoor antenna interface power supply, indoor antenna interface power supply and USB interface power supply. The mobile phone signal amplifier can support multi-stage cascading, self-excitation detection, adjustable gain and automatic control.

An embodiment of the present application provides an omnidirectional indoor antenna system, comprising a satellite gateway, a multi-system combining access platform, a power splitter or coupler, an adjustable radio frequency control unit, and an omnidirectional antenna. The satellite gateway converts the received multi-band satellite signal into a multi-band electrical signal and transmits it to the multi-system combining access platform. The platform combines and outputs the multi-band electrical signal to the power splitter or coupler. The power splitter or coupler distributes the multi-band electrical signal output by the multi-system combining access platform to the omnidirectional antenna through the adjustable radio frequency control unit. The adjustable radio frequency control unit is used to adjust the delay of the received multi-band electrical signal according to a preset delay parameter, and / or adjust the gain according to a preset gain parameter, and transmit the adjusted signal to the omnidirectional antenna. The present application can improve the coverage and signal quality of the multi-band signal in the indoor environment, realize the delay adjustment and gain adjustment of the signals in different frequency bands, and improve the flexibility and adaptability of the antenna.

The invention discloses an antenna array and an antenna device, belongs to the technical field of antennas, and aims to improve the signal coverage range of an indoor antenna, the antenna array comprises a first substrate and a plurality of antenna arrays, and the plurality of antenna arrays form an array along a single first direction; wherein the antenna array comprises at least one radiation unit, the radiation unit comprises a plurality of radiation arms, the plurality of radiation arms are arranged on the same side of the first substrate along the first direction and are symmetrically distributed along a second direction, and the second direction is orthogonal to the first direction; wherein the first substrate is orthogonal to the end face of the antenna device where the antenna array is located.

The invention discloses an antenna unit and an antenna device, belongs to the technical field of antennas, and aims to reduce the size and cost of an indoor antenna base station, the antenna unit comprises a dielectric block, and the dielectric block is of a polyhedral structure; the feeder line is positioned on the outer surface of the dielectric block; the radiation structure is connected with the feeder line; wherein the radiation structure comprises a plurality of radiation branches with different lengths, the plurality of radiation branches are distributed on different outer surfaces of the dielectric block, and each radiation branch comprises at least one bend.

The embodiment of the invention provides an omnidirectional indoor antenna system, which comprises a satellite gateway, a multi-system combination access platform, a power divider or coupler, an adjustable radio frequency control unit and an omnidirectional antenna, and is characterized in that the satellite gateway converts a received multi-band satellite signal into a multi-band electric signal and transmits the multi-band electric signal to the multi-system combination access platform; the platform combines the multi-band electric signals and outputs the multi-band electric signals to the power divider or the coupler, and the power divider or the coupler distributes the multi-band electric signals output by the multi-system combined access platform to the omnidirectional antenna through the adjustable radio frequency control unit. And the adjustable radio frequency control unit is used for performing time delay adjustment on the received multi-band electric signal according to a preset time delay parameter, and / or performing gain adjustment according to a preset gain parameter, and transmitting the adjusted signal to the omnidirectional antenna. According to the invention, the coverage range and the signal quality of the multi-band signal of the indoor environment can be improved, the time delay adjustment and the gain adjustment of the signals of different bands are realized, and the flexibility and the adaptability of the antenna are improved.

The utility model discloses a folding indoor antenna which is characterized in that the folding indoor antenna comprises a first cylinder and a second cylinder, the top end of the first cylinder is provided with a sliding groove, the second cylinder is embedded in the sliding groove and is in sliding connection with the first cylinder, the top end of the second cylinder is provided with an installation groove, a first antenna rod is embedded in the installation groove, and the first antenna rod is in sliding connection with the second cylinder. Vertically downward first grooves are formed in the upper ends of the two opposite sides of the first column body, second antenna rods are embedded in the first grooves, one ends of the second antenna rods are rotationally connected with the upper end of the first column body, second grooves are formed in the two same sides, provided with the first grooves, of the second column body, and third antenna rods are embedded in the second grooves; one end of the third antenna mast is rotatably connected with the upper end of the second cylinder, and one side of the first cylinder away from the first groove is provided with a fixed sucker. According to the technical scheme of the utility model, the antenna can be prevented from colliding with or hooking other objects and being damaged, the structure is flat, and the space occupation ratio is reduced.

To improve uniformity of plasma processing.SOLUTION: A plasma processing device comprises a chamber, a window member, a gas introduction port, and an antenna. The chamber accommodates a substrate. The window member constitutes an upper part of the chamber. The gas introduction port is installed on either a side wall of the chamber or the window member, and supplies a gas to the inside of the chamber. The antenna is installed upward of the chamber via the window member, and is formed from an electro-conductive material and is formed in a linear shape. The antenna irradiates the inside of the chamber with RF electric power, thereby causing the gas supplied to the inside of the chamber to be plasmatized. The antenna has a first coil and a plurality of second coils. The first coil is supplied with RF electric power. The second coils are formed in the same shape, and are arranged in multiple around the first coil in rotational symmetry around a center axis of the first coil. A variable capacitance capacitor is connected one each at the respective ends of the second coils.SELECTED DRAWING: Figure 8

This invention relates to a system for enhancing the mobile telephony service coverage internal a building. The system comprises an external outdoor antenna, a repeater, and a plurality of indoor antennas connected to the repeater. The repeater and the indoor antennas each have a coaxial cable connector. Each of the indoor antennas is connected to the repeater by way of a dedicated coaxial cable, the dedicated coaxial cable being connected at its ends to the repeater coaxial cable connector and the indoor antenna coaxial cable connector. Each of the indoor antennas is provided with a coaxial cable connection detection circuit and a coaxial cable connection indicator. The detection circuit detects whether or not there is a closed circuit connection between the repeater and the indoor antenna, and the indicator indicates whether or not there is a closed circuit connection between the repeater and the indoor antenna.

The utility model discloses a radar level meter which comprises a shell, a circuit assembly, an antenna and a glass isolation piece. The glass isolation piece is installed in the shell and is isolated in the shell to form a first cavity and a second cavity, the circuit assembly is installed in the first cavity, and the antenna is installed in the second cavity and penetrates through the glass isolation piece to be connected with the circuit assembly. According to the radar level meter, single-cavity explosion suppression is achieved, namely, in the single cavity containing the circuit assembly and the antenna, the first cavity where the circuit assembly is located is isolated from the second cavity where the antenna is located by arranging the glass isolation piece, and the explosion-proof performance of the first cavity is guaranteed. And good performances such as high hardness, wear resistance and high temperature resistance of glass are utilized, so that heat isolation is realized while pressure impact resistance and explosion-proof isolation are realized, and the temperature heat in the space of the circuit assembly is relatively reduced. The glass separator can also play a role in insulation and isolation between the antenna and the housing, and ensures that the electromagnetic wave signal can be transmitted along the antenna without being reflected by the housing.

The present application provides an indoor terminal positioning method, system, device, and electronic device. Multiple indoor antennas are distributed indoors, and each of the multiple indoor antennas is connected to an outdoor antenna installed outdoors to receive satellite navigation signals via multiple feeders. The method includes: for each of the multiple indoor antennas, determining the antenna position corresponding to the indoor antenna based on the satellite navigation signal and estimating the receiver clock error corresponding to the indoor antenna; determining an indoor antenna adjacent to the terminal among the multiple indoor antennas as a neighboring antenna based on the length of the feeder and the receiver clock error of each of the multiple indoor antennas; determining the initial position of the terminal based on the antenna position corresponding to the neighboring antenna; and determining the final position of the terminal based on the inertial measurement data acquired by the terminal in real time and the initial position.

The utility model relates to the technical field of indoor antennas, and discloses an angle-adjustable indoor antenna, which comprises a mounting seat, a mounting frame is fixedly assembled at the top of the mounting seat, a height adjusting assembly is arranged at the top of the mounting frame, and the height adjusting assembly comprises a first motor. And an output shaft of the first motor penetrates through the top of the mounting frame and is rotationally connected with the inner wall of the mounting frame, a lead screw is fixedly welded to the bottom of the output shaft of the first motor, and the outer edge of the lead screw is in threaded connection with a lifting block slidably connected with the inner wall of the mounting frame. A first motor is controlled to work, a lead screw fixedly welded to the output shaft end of the first motor is driven to rotate in the inner wall of a mounting frame, and a lifting block which is in threaded connection with the outer edge of the lead screw and is in sliding connection with the inner wall of the mounting frame is utilized, so that the lead screw rotates and drives the lifting block to slide in the inner wall of the mounting frame; and the signal receiving blade rotationally connected with the top of the lifting block is driven to lift, so that the height of the signal receiving blade is adjusted.

The utility model provides a doorbell support, a doorbell system and a door assembly. The doorbell support comprises a support body; a communication component having an antenna; and the connecting assembly is used for connecting the bracket body and the communication assembly, and the connecting assembly is electrically connected with the antenna. Through the arrangement, the support body and the communication assembly can be located on the indoor side and the outdoor side of the door body correspondingly, and under the condition that the support body is located outside the door, the communication assembly is located indoors; a host can be installed on the support body, the host can be conveniently in communication connection with a router, a receiver and other devices through an indoor antenna, the influence of a door, a wall and the like on signal transmission is reduced, the signal transmission effect and signal strength of the host, the router, the receiver and other devices can be improved, power consumption of the host is reduced, and the charging frequency of a user is reduced. And the use experience of the user is improved.

The utility model discloses a quick mounting and dismounting structure of an indoor antenna, which comprises an antenna shell, a base and a support rod arranged on the base, the upper end of the support rod is provided with a mounting hole, the antenna shell is fixedly provided with an insertion rod inserted in the mounting hole, one side of the outer side wall of the support rod is provided with a buckle hole, and the buckle hole is provided with a through hole. The inserting rod is provided with an elastic fastener buckled to the buckling hole, the other side, opposite to the elastic fastener, of the inserting rod is provided with an axial groove, and the other side of the outer side wall of the supporting rod is provided with a set screw which can abut against the bottom face of the axial groove so as to lock the supporting rod. When the dismounting and mounting structure is used for mounting the indoor antenna, mounting and dismounting are very convenient and fast.

The present application belongs to the technical field of remote-sensing unlocking and the technical field of smart door locks. Disclosed are a directional inadvertent-trigger-preventing remote-sensing smart door lock apparatus with differential positioning, a remote-sensing unlocking method, a door lock control apparatus and method, and a storage medium. The door lock apparatus comprises: an outdoor antenna, configured to receive a signal within a preset effective range outdoors; an indoor antenna, configured to receive a signal indoors; a Bluetooth receiving module, configured to extract an outdoor signal strength value and an indoor signal strength value; a PCBA control board which calculates a real-time difference, wherein when the real-time difference is greater than a preset threshold, it is determined that a transmitting end is located outdoors, and when the transmitting end is located outdoors and the transmitting end is within the preset effective range, an unlock instruction is sent; and a door lock motor, configured to execute an unlock action for the smart door lock on the basis of the unlock instruction. A directional reception design is used in the outdoor antenna such that a signal is received only within a preset effective range outdoors, ensuring that unlocking is triggered only when the transmitting end is located outdoors in a specific area directly in front.