59 results about "Wireless broadcast" patented technology

Systems and methods include a medical device that scans for wireless broadcasts based upon received input or satisfying a scanning criterion. The medical device, based upon the scan, identifies data wirelessly broadcast from a control device. The medical device outputs information to the interface identifying the control device. The medical device receives input from the interface selecting the control device. The medical device receives a command from the control device. The medical device physically interacts with a user based upon the command received from the control device. The medical device sends wireless confirmation of pairing to the control device. The medical device subsequently sends wireless confirmation of unpairing to the control device. The medical device performs a scan for wireless broadcasts in response to the unpairing, based upon received input or satisfying the scanning criterion.

The application provides a wireless broadcast service message enhanced transmission method, which comprises the following steps: S1, connecting a broadcast service server and at least one first broadcast service client to a switch network subsystem in wired communication; the switch network subsystem is in communication connection with a Wi-Fi subsystem; the Wi-Fi subsystem is in wireless communication connection with at least one second broadcast service client; S2, presetting the Wi-Fi subsystem; S3, when a broadcast service client is interested in a video, a user feeds back an IP address of the broadcast service client which needs to receive the video; S4, performing legality check on the minimum transmission rate of the at least one first broadcast service client and / or the at least one second broadcast service client; and S5, transmitting by the Wi-Fi subsystem according to the parameters preset in step S2. According to the requirements of different service clients, different processing procedures can be executed correspondingly, so that the requirements of real-time video transmission can be met.

The present invention discloses a method for identifying vehicle paths on highways, which belongs to the field of electronic communication technology for highways. The method comprises the following steps: S1, a vehicle enters the highway through an ETC gantry at a highway entrance, the ETC gantry transmits path identification point information to an OBU via an RSU radio frequency device, and transmits the information to an on-board path identification system via the OBU; S2, a message broadcast receiving module and a comparison broadcast receiving module on the on-board path identification system respectively receive broadcast signals of a message broadcast base station and a comparison broadcast base station in a broadcast system, and an on-board broadcast device normally plays audio converted from the broadcast signals transmitted by the message broadcast base station; the method can calculate the precise driving route of the vehicle according to the positions of the message broadcast base station 11 and the comparison broadcast base station 12, and utilizes the existing wireless broadcast system, thereby greatly reducing cost investment, improving the accuracy of calculation of the ETC charging system, and ensuring the interests of users.

The invention relates to a wireless broadcast connection system and method and a method for automatically configuring an emergency alarm area. The system comprises a wireless broadcast receiving device and an intelligent terminal, the wireless broadcast receiving device is configured to be used for receiving broadcast signals and wirelessly transmitting broadcast audio streams to the intelligent terminal, and the wireless broadcast receiving device comprises a broadcast receiving processing unit, a wireless communication module and a digital signal processing unit. The digital signal processing unit is connected with the broadcast receiving and processing unit and the wireless communication module, and is used for encoding the digital audio signal into an audio stream in a compressed format and carrying out transmission buffer management on the audio stream; wherein the digital signal processing unit is provided with a self-adaptive transmission control module, and the self-adaptive transmission control module has a bidirectional communication capability and is used for receiving a playing buffer area state feedback signal from the intelligent terminal and dynamically adjusting the transmission rate of sending the compressed audio stream to the intelligent terminal according to the feedback signal; therefore, synchronous control of buffer areas of a sending end and a receiving end is realized.

The invention relates to the technical field of wireless broadcast frequency adjustment, in particular to a target equipment wireless broadcast frequency dynamic adjustment method and device, a medium and equipment. The method comprises the steps of obtaining smooth environment temperature data of an environment where target equipment is located once every time a preset temperature collection time point is reached; if Tcu-Tcu-1 is greater than delta T, and tcu-tcu-1 is greater than delta t, skipping to determine an algorithm according to Tcur and a preset wireless broadcast frequency, and updating the wireless broadcast frequency of the target equipment; and otherwise, skipping to continue working at the wireless broadcast frequency currently corresponding to the target equipment. According to the invention, the normal operation of equipment and the stability of wireless communication are ensured. The frequent switching of the wireless broadcast frequency is avoided; and the energy consumption optimization is realized.

Disclosed technology includes a sensory prosthesis configured to automatically select a broadcast channel based on a comparison with a signal from a sensor of the sensory prosthesis. In an example, a sound processor automatically connects to an appropriate wireless broadcast audio channel by comparing the sound the sound processor receives on a microphone with the audio the sound processor receives from each of the wireless broadcast channels that the sound processor can receive. If the sound processor finds a match between the sound from the microphone and the sound from a broadcast, then the sound processor automatically selects the matching wireless broadcast channel. The sound processor then provides auditory stimulation to the recipient based on the selected broadcast channel.

The present disclosure relates to systems, methods, and computer-readable media for securely verifying an identity of a user of a client device based on a signal transmitted by the client device. For example, systems disclosed herein include registering a client device and facility device via a cloud computing system to enable the client device and facility device to securely communicate a signal via a wireless connection. The systems disclosed herein additionally include determining whether a trigger condition applies based on a position of the client device relative to the facility device. The systems disclosed herein further include maintaining and updating a subset of user verification information to include personal verification of a registered user of the client device. Using the subset of user verification information, a biometric scanning device may efficiently and accurately verify an identity of an individual associated with the client device.

This application discloses a digital car key, a vehicle communication system, and a method. The digital car key may include a power supply module, a sensor, and a first wireless communication module. The sensor is coupled to the power supply module and the first wireless communication module to collect movement data of the digital car key and send the movement data to the first wireless communication module. The movement data includes movement speed and movement direction. The first wireless communication module is used to scan a first wireless broadcast signal emitted by a target vehicle and pair with the target vehicle to send movement data to the target vehicle, thereby determining the current distance between the digital car key and the target vehicle. Implementing the method of this application, by using the movement data of the digital car key to assist in determining the distance between the digital car key and the vehicle, helps to solve the problem of inaccurate distance measurement caused by obstacles in the transmission path of the wireless broadcast signal or sudden changes in the measured distance within a short period of time.

The invention discloses a ground signal receiving method, device and equipment based on a vehicle-mounted multimedia terminal and a storage medium, and relates to the technical field of vehicle-mounted multimedia communication.The method comprises the steps that under the condition that pairing with an unmanned aerial vehicle is completed, the flight radius of the unmanned aerial vehicle is calculated according to the length of an antenna feeder, and the unmanned aerial vehicle is provided with a ground antenna; the unmanned aerial vehicle is connected with the antenna feeder; the unmanned aerial vehicle is controlled to fly within the flight radius range, and real-time positioning information sent by the unmanned aerial vehicle is received; the signal intensity of the ground wireless broadcast signals and the real-time positioning information are recorded in an associated mode, a signal intensity-position information table is obtained, and the ground wireless broadcast signals are obtained through a ground antenna and an antenna feeder; and obtaining a target position corresponding to the maximum value of the signal intensity in the signal intensity-position information table, and controlling the unmanned aerial vehicle to move to the target position so as to receive the ground wireless broadcast signal. According to the invention, the vehicle-mounted multimedia terminal can stably receive the ground signal in the field.

The embodiment of the invention discloses a communication method and device, temperature measuring equipment, a distribution box and a system. In the embodiment of the invention, the temperature measuring equipment acquires the communication connection state with the first distribution terminal after determining the temperature data packet every time, and sends the wireless broadcast information carrying the temperature data packet when the communication connection state between the temperature measuring equipment and the first distribution terminal is disconnected; and sending the temperature data packet to the server by the second distribution terminal in the broadcast range of the temperature measuring equipment. Wherein the first distribution terminal is a distribution terminal bound with the temperature measuring device, and the second distribution terminal is a distribution terminal belonging to the same distribution group with the first distribution terminal. Therefore, the second distribution terminal helps the first distribution terminal to send the temperature data packet to the server when the communication connection between the first distribution terminal and the temperature measurement device is disconnected, and the embodiment of the invention can ensure the real-time performance and integrity of the temperature data sent to the server by the temperature measurement device, thereby better guaranteeing the user experience.

The utility model discloses a wireless broadcast interphone with GPS positioning and a system thereof. The wireless broadcast interphone comprises a wireless broadcast transmitting unit, a bidirectional wireless communication module, a GPS receiving unit, a position data transmission module, a battery and power management unit and a central control system. The wireless broadcast transmitting unit broadcasts audio information through radio waves, the two-way wireless communication module achieves real-time voice communication between devices, the GPS receiving unit obtains device position information and transmits the device position information to the central control system, and the central control system receives and processes the position information and voice feedback and sends broadcast information and instructions according to requirements. The battery and the power management unit provide power support and have a battery electric quantity monitoring function. The system can be widely applied to scenes of large-scale activities, emergency command, security management and the like, has the advantages of wide coverage range, accurate positioning, stable communication, intelligent battery management and the like, can effectively improve command and communication efficiency, and ensures reliable operation of the system in a complex environment.

The invention provides a new wireless broadcast optimization method, device and equipment, a storage medium and a program product, and belongs to the technical field of wireless communication, and the method comprises the steps that an application function AF is internally provided with an error code corresponding table, and the error code corresponding table is used for storing the corresponding relation between the error rate and the forward error correction FEC coding proportion; receiving a real-time transmission control protocol packet reported by each multicast terminal, wherein the real-time transmission control protocol packet comprises an error rate; performing bit error rate statistics based on the geographic areas to obtain area bit error rates corresponding to the geographic areas; and determining the FEC coding proportion of each geographic area based on the bit error rate of each area and the bit error coding corresponding table. The broadcast channel state is indirectly estimated by means of feedback of the multicast terminal so as to obtain channel measurement, FEC coding is guided according to the corresponding relation between the bit error rate and the FEC coding proportion, and reliability is improved and data transmission efficiency and transmission quality are balanced on the basis of ensuring large capacity and short time delay of broadcast services.

The invention discloses a regional wireless high-precision time keeping and time service system and method, and relates to the field of time synchronization, and the system comprises a key display panel which is used for receiving a user instruction and displaying a state; the time frequency processing board receives a timing instruction, converts an external standard time source into a local 1PPS signal, provides the local 1PPS signal to the chip atomic clock for clock taming, and provides Beidou time and reference frequency for the navigation simulation board after time conversion; the navigation analog board is used for encoding and modulating navigation messages based on set signal generation parameters, Beidou time and reference frequency, generating analog Beidou navigation signals and sending the analog Beidou navigation signals to the transmitting antenna; the transmitting antenna is used for transmitting the simulated Beidou navigation signal to ground Beidou receiver equipment; the power supply module performs power supply conversion on the battery; and the comprehensive control board performs data interaction and state power consumption management. According to the invention, rapid and efficient timing of the Beidou user equipment is realized in a wireless broadcast mode, and the time service system has long endurance time-keeping days and high time-keeping precision.

The utility model provides a flood discharge early warning system wireless broadcast installation support which comprises a bottom plate, the top face of the bottom plate is welded to the bottom of a vertical rod, the upper end of the vertical rod is provided with a lightning rod, loudspeakers and indicator lamps, the loudspeakers and the indicator lamps are evenly distributed towards the periphery and outwards, and the middle of the vertical rod is provided with a fixing support, a solar panel and an equipment box. The solar panel is connected with the fixing support through the adjusting assembly, the equipment box is installed on the surface of the fixing support, a storage battery, a charging and discharging controller and a wireless early warning host are arranged in the equipment box, the storage battery is electrically connected with the charging and discharging controller, and the charging and discharging controller is electrically connected with the wireless early warning host, the solar panel, the adjusting assembly and the indicator light. The wireless early warning host is electrically connected with the tweeter. Through the ground cage type embedded part, the mounting strength of the bottom plate and the mounting area can be improved, and the stability and the wind resistance are improved; acousto-optic warning is carried out through the waterproof loudspeakers facing four directions and the indicator lamps, so that nearby vehicles or pedestrians can find the warning conveniently.

The embodiment of the invention provides a communication configuration method of an intelligent terminal and a related device, and relates to the technical field of communication. Acquiring an NFC label signal of the intelligent terminal; if the communication type is point-to-point wireless communication, configuration information is sent to the intelligent terminal, so that the intelligent terminal carries out point-to-point wireless broadcasting, and a scanning instruction is sent to the vehicle machine system, so that the vehicle machine system establishes communication connection with the intelligent terminal and carries out communication configuration under the condition that the point-to-point wireless broadcasting of the intelligent terminal is scanned; if the communication type is network access communication, configuration information is sent to the intelligent terminal, equipment scanning is carried out, under the condition that point-to-point wireless broadcast of the intelligent terminal is scanned, communication connection with the intelligent terminal is established, and network access information corresponding to the vehicle machine system is sent to the intelligent terminal; therefore, the intelligent terminal establishes communication connection with the vehicle machine system based on the network access information and performs communication configuration, user operation is simplified, and automatic communication configuration of the intelligent device is realized.

A method and system to facilitate adding a new IoT device to an IoT ecosystem that includes an existing IoT device, where a mobile device is configured to control the IoT ecosystem. In an example, the new device detects a wireless broadcast from the existing device that provides identification information of the mobile device. In response, the new device then uses the provided identification information of the mobile device as a basis to scan for and discover wireless presence of the mobile device. And responsive to the discovering wireless presence of the mobile device based on the mobile-phone identification information provided by the existing device, the new device then transmits to the mobile device, via the existing device as a wireless proxy, new-device information about the new device-which enables the mobile device to prompt for and obtain user approval to add the new device to the IoT ecosystem.

The utility model provides a kind of FM modulation transmitting device, including the external interface group for receiving external signal, FM modulator for modulating received external signal, controller for controlling modulated signal and display component for displaying modulated signal.The utility model realizes wired or small range wireless broadcast type voice announcement, audio program broadcast etc. Operation, with small size, deployment quick, wide coverage and frequency adjustable range Large advantages such as range, solve the problem of insufficient communication coverage in remote and special areas, poor equipment adaptability in emergency communication scenarios and difficult to meet the signal conversion requirements of special equipment.

The invention discloses a wireless broadcast upgrading device and method. A master node slices firmware and then continuously broadcasts the firmware, slave nodes receive the firmware in parallel and locally reconstruct the firmware, and breakpoint resume, grouping upgrading, digital signature and version rollback are supported. According to the method, the upgrade time is shortened to a second level from a minute level of a traditional point-to-point mode while extremely low air port occupation is kept, and the method can be widely applied to scenes such as intelligent sound equipment needing large-scale, high-reliability and rapid upgrade. According to the invention, serial upgrading is changed into parallel upgrading in a wireless broadcast mode, so that the time cost of upgrading is reduced, the upgrading efficiency is improved, and the fault tolerance is improved. The problems of time cost, low efficiency and low fault tolerance of serial upgrading are solved.

The present subject matter discloses an optimal range-assisted adaptive wireless broadcast communication. The disclosed system dynamically determines real-time position information and the best quality reception range of a broadcast transmitter generates correlated broadcast beacon packets embedded with spatial aware information. The system further generates chains of assistive beacon batches including the correlated broadcast beacon packets and transmits it by interleaving with the main adaptive broadcast stream. A broadcast receiver extracts the spatial aware information from the main adaptive broadcast streams and determines an optimal position of the broadcast transmitter with reference to self-position and co-relates this information with the extracted spatial aware information to further determine the best quality reception region for the multi-stream broadcast contents.

This utility model discloses a novel wireless transmitter source switching system, comprising a loop control module, a signal output module, a signal detection module, a working indicator module, and a signal input module. The signal output module, signal detection module, working indicator module, and signal input module are electrically connected to the loop control module. A power control module is electrically connected to each of the loop control module, signal output module, signal detection module, and working indicator module, and is powered by AC mains electricity. This utility model relates to the field of automatic source switching for wireless broadcast transmitters, specifically a novel wireless transmitter source switching system.

A device may include a plurality of carriers, wherein each carrier includes a plurality of communication processors, each communication processor disposed over or in a respective carrier of the plurality of carriers and configured to provide a wireless broadcasting communication channel, and a plurality of antennas, each antenna disposed on or in a respective carrier and coupled to a respective communication processor, wherein each antenna extends into a corner of the respective carrier, and wherein the antennas of each pair of adjacent carriers are positioned at a distance from each other at less than about 1 wavelength corresponding to the lowest operating frequency.

Systems and methods are provided for controlling electric and electronic devices. The devices may communicate with each other in a many-to-many, peer-to-peer network to provide control functionality without the need for a central controller. Device-to-device control messages may be implemented over short range, wireless broadcast messages.

The present subject matter discloses an optimal range-assisted adaptive wireless broadcast communication. The disclosed system dynamically determines real-time position information and the best quality reception range of a broadcast transmitter generates correlated broadcast beacon packets embedded with spatial aware information. The system further generates chains of assistive beacon batches including the correlated broadcast beacon packets and transmits it by interleaving with the main adaptive broadcast stream. A broadcast receiver extracts the spatial aware information from the main adaptive broadcast streams and determines an optimal position of the broadcast transmitter with reference to self-position and co-relates this information with the extracted spatial aware information to further determine the best quality reception region for the multi-stream broadcast contents.

Systems and methods are provided for controlling electric and electronic devices. The devices may communicate with each other in a many-to-many, peer-to-peer network to provide control functionality without the need for a central controller. Device-to-device control messages may be implemented over short range, wireless broadcast messages.

The embodiment of the invention discloses a dynamic sliding window data frame association coding method and device, a dynamic sliding window data frame recovery method and device and electronic equipment, and the data frame recovery method comprises the following steps: reading corresponding data frames and association frames from L sub-cache regions in a receiving cache under the condition that a lost data frame exists currently, carrying out recovery operation on the lost data frame; wherein a data frame corresponding to the broadcast time slot and a corresponding association frame are stored in each sub-cache region, the association frame is obtained by performing association coding on at least two of K data frames including the data frame before the data frame by the wireless broadcast sending end, and K is a coding association length.

To provide a remote unlocking system which enables a management box for storing keys for opening a facility such as an evacuation shelter to be unlocked by remote control and opened quickly.SOLUTION: A remote unlocking system includes a master station 10 and individual household receivers 11 that receive wireless broadcasts transmitted from the master station at facility 1. A management box 20 is installed outside the facility and stores keys for locking / unlocking the facility. The management box includes a box body for storing the keys, a door, a door locking / unlocking unit for locking / unlocking the door, and an operating unit for operating the door locking / unlocking unit. Following the wireless broadcast, the master station 10 transmits an unlocking signal in the form of a DTMF signal that unlocks door 22 of management box 20, and individual household receiver 11 outputs the DTMF signal received following the wireless broadcast as an audio signal. The management box 20 includes a detector for the DTMF signal output from the individual household receiver 11. If the DTMF signal detected by the detector is an unlocking signal for unlocking the door of the management box, the operating unit operates the door locking / unlocking unit based on the unlocking signal to unlock the door.SELECTED DRAWING: Figure 1

The invention relates to the technical field of photovoltaic distributed energy storage, and provides a photovoltaic separable battery pack mounting and testing method and device. The method comprises the following steps: respectively issuing corresponding wireless broadcast instructions to equipment in a plant assembly stage and a field installation stage through a gateway or a platform; the equipment enters a broadcast monitoring state after being powered on, receives the wireless broadcast instruction, and executes a test of a corresponding stage according to the wireless broadcast instruction; after the equipment completes the test, generating a structured test report and uploading the test report to the platform through a wireless network; and the platform judges the current state of the equipment according to the test report and provides visual feedback for technicians. The problem that a traditional testing method highly depends on manual operation and is poor in practicability is solved.

The invention provides a self-powered equipment fault detection device based on a piezoelectric energy harvesting resonance characteristic, and the device comprises a piezoelectric energy harvesting unit which is used for converting the vibration of detected equipment into a piezoelectric signal; the self-powered piezoelectric circuit is used for converting the piezoelectric signal into a power supply signal; the detection control circuit is used for keeping or lowering the power supply signal through a first control signal output end and outputting a normal state signal or an abnormal state signal through a second control signal output end; and the state broadcast circuit is jointly controlled by the self-powered piezoelectric circuit and the detection control circuit, and sends a wireless broadcast signal when the state of the detected equipment is normal, otherwise, does not send the wireless broadcast signal. According to the self-powered equipment fault detection device provided by the invention, the judgment of the state of the detected equipment and the sending of the judgment result can be realized without any external power supply and sensor.

The invention relates to a broadband antenna for a wireless broadcast channel. An apparatus may include a plurality of carriers, where each carrier includes a plurality of communication processors, each communication processor disposed over or in a respective carrier of the plurality of carriers and configured to provide a wireless broadcast communication channel, and a plurality of antennas disposed over or in the respective carrier, each antenna is disposed on or in a respective carrier and coupled to a respective communication processor, where each antenna extends into a corner of the respective carrier, and where the carriers in each pair of adjacent carriers are positioned at a distance from each other less than about one wavelength corresponding to a lowest operating frequency.

The invention provides live subtitling system for subtitling a series of people while they are speaking to a series of clients, in particular the series of people performing in a theatre, for instance playing in a play, singing in a musical, opera or operetta, with the clients forming part of a live audience. The live subtitling system comprising at least one speech-to-text conversion system and a wireless broadcast system.