3157 results about "Intercom" patented technology

The invention provides a method for eliminating echo of a talkback system, which comprises the following steps of: according to separated near-end speech evaluation and a plurality of recognized speaker speech segments, respectively performing residual echo suppression, constructing binary time-frequency masking and reducing residual echo spectrum caused by dynamic change of echo power; the phase information of the original mixed signal is combined with the enhanced near-end voice power spectrum, the voice waveform of each speaker is reconstructed through inverse short-time Fourier transform, and transition between voice frames is smoothed in an overlap-add mode; whether voice exists at the near end and the far end or not is judged, if the double-talk state is detected, parameters of a nonlinear echo cancellation algorithm are adjusted, and the situation that the voice at the near end is mistakenly suppressed is avoided; and carrying out transmission path modeling on the processed near-end voice signal, and evaluating propagation characteristics of the voice signal from a speaker to a microphone, including time delay and attenuation of direct sound and early reflected sound.

The invention discloses a portable interphone rapid networking system, and relates to the field of interphone rapid networking, and the system comprises a node adaptive role distribution module which adaptively distributes node roles according to the position information of each interphone node in the system in combination with the signal intensity and the residual electric quantity of the node; the path dynamic adjustment module establishes a preliminary path by sending a path request, and dynamically calculates the comprehensive quality of the path to dynamically adjust the priority of the path; the channel aggregation and dispersion strategy adjustment module is used for automatically carrying out dynamic switching adjustment on an aggregation or dispersion strategy on a channel according to real-time spectrum detection; and the communication cross-layer coordination module dynamically adjusts transmission parameters to realize communication cross-layer coordination according to the state monitoring information of the physical layer, the data link layer and the network layer after interphone networking.

This disclosure describes an electronic device that can be installed within an access control system in parallel with a legacy interface device. The electronic device may perform steps of determining a set of configuration settings associated with an access control system to which the electronic device is electrically connected, receiving, by the electronic device, a first signal in a format associated with the access control system, configuring, based on the set of configuration settings, one or more signal pathways within the electronic device, generating, by routing the first signal through the one or more signal pathways, a second signal in a second format, and providing the second signal to at least one second electronic device.

The invention provides an interphone emergency rescue method and system based on ultra-low power consumption remote wakeup, and relates to the technical field of interphone emergency rescue, and the method comprises the steps: switching a normal working mode to an ultra-low power consumption mode according to a mode switching instruction generated by triggering a target emergency event; in the ultra-low power consumption mode, performing signal monitoring on a preset communication frequency band according to a preset monitoring strategy so as to receive a wake-up signal broadcasted by a first search and rescue user on the preset communication frequency band through a first search and rescue end interphone; when it is determined that the wake-up signal is received from the preset communication frequency band, performing security verification on the wake-up signal to switch the ultra-low power consumption mode to a normal working mode; and in the normal working mode, executing the target help-seeking operation. The technical problem that the emergency rescue efficiency of the interphone in the ultra-low power consumption mode is low in the prior art is solved, and the technical effect of improving the emergency rescue efficiency of the interphone in the ultra-low power consumption mode is achieved.

The invention relates to the technical field of information technology and artificial intelligence application, and discloses a campus anti-bullying system based on voice recognition and big data analysis. Comprising a front-end device, a central processing unit, a voice communication real-time talkback module, a prevention reminding module, a disposal reminding module and a user report interface, wherein the front-end device further comprises an AI voice recognition terminal device, a microphone and a sensor module and is used for monitoring environment sound in a monitoring blind area in a campus in real time. By integrating AI voice recognition, a deep learning algorithm and a voiceprint recognition technology, voice features related to campus bullying events can be accurately captured and recognized in a monitoring blind area, and by combining an Ai artificial intelligence large model analysis platform, the system can effectively analyze the grade of the bullying events, intelligently trigger event prevention or event disposal notification pushing, and improve the safety of the bullying events. And the historical event behaviors are subjected to data archiving, so that the accuracy of bullying event identification is greatly improved.

The invention is suitable for the technical field of toll station management, and provides an expressway toll station remote seat guarding and special situation vehicle handling system, which comprises a front-end sensing layer, a rear-end sensing layer and a control layer, the lane equipment comprises a photoelectric sensor, an infrared height limit alarm, a license plate recognition camera, an ETC antenna, an acousto-optic warning ball and a self-service equipment sensor; the network transmission layer is connected with lane equipment, a sentry box cabinet, a machine room core switch and a monitoring center through an optical fiber network; the remote control layer is composed of a remote seat center, and the remote seat center can carry out video monitoring, visual intercom and remote control; and the abnormity alarm layer is used for carrying out early warning on vehicle detention, vehicle height exceeding, ETC passing faults, toll evasion vehicles and handrail abnormity. The vehicle state can be sensed in real time, data are gathered to a remote seat center through a network transmission layer, an information island is broken, and special conditions can be automatically processed.

The invention relates to the technical field of interphone communication, in particular to a method and system for achieving communication between a public network interphone and a DMR interphone, and the method comprises the following steps: collecting user position data and communication records, measuring the signal strength and the network congestion degree of the public network interphone and the DMR interphone, and analyzing network performance indexes; and comparing the signal quality, the delay and the bandwidth utilization rate to generate network performance comparison data. According to the invention, the time delay and the packet loss rate of the network are calculated, the network state is accurately predicted, the basis for adjusting the communication priority according to the communication behavior and the emergency degree is provided for the user, the resource allocation is optimized, the most suitable public network and DMR network are selected for switching operation, and the bandwidth and the connection number are dynamically adjusted. The utilization efficiency of network resources is improved, the reliability and the real-time performance of communication are enhanced, timely transmission of information and smooth operation are ensured, and the efficiency and the quality of cross-platform and cross-network communication are improved.

The invention discloses an ad hoc network wireless intercom system and method for old cell reconstruction, the system is composed of an outdoor wireless digital host, a wireless repeater and a wireless indoor extension, an ad hoc multi-hop wireless local area network is constructed based on an ESP-WIFI-MESH protocol, redundant communication is realized by adopting a mesh topology structure, and the wireless intercom system and the wireless repeater are used for wireless intercom. The problems of high wiring cost and poor wireless signal coverage in the prior art are solved. The talkback method comprises the following steps: marking an alarm instruction as the highest level through a priority transmission mechanism, and preempting a channel to ensure zero delay of an emergency signal; voice and video data are scheduled in a hierarchical manner, and real-time performance and bandwidth are balanced. The wireless repeaters dynamically allocate IP addresses, support plug and play of extension sets, and realize cross-building communication and remote management in combination with a local area network of a community.

The invention relates to the technical field of dual-mode interphones, and discloses an AI-based dual-mode interphone satellite communication noise reduction method and system, and the method comprises the steps: carrying out the orbit equation solving of satellite ephemeris data, and obtaining a satellite elevation angle and a channel fading parameter; receiving a first voice signal through a dual-mode interphone, and identifying a modulation mode according to the first voice signal; calculating a first noise reduction mask according to the channel fading parameter and the modulation mode; compressing the standard noise reduction neural network to form a lightweight noise reduction model; and starting an FM spectrum subtraction branch or a TETRA filtering branch in the lightweight noise reduction model according to the modulation mode, and performing frequency domain processing on the first noise reduction mask and the first voice signal to obtain a second voice signal, thereby providing stable and reliable real-time voice noise reduction capability for the portable dual-mode interphone in a dynamic satellite environment.

The invention relates to a Bluetooth device dynamic networking method and apparatus, and a readable medium. The method comprises the steps of establishing a first intercom network by at least two Bluetooth devices; the central device generates a node list and a network key, and distributes the node list and the network key to all first node devices of the first intercom network; under the condition that second node equipment outside the first talkback network is added to the first talkback network, the central equipment updates the network key and the node list, and sends the updated network key and the node list to newly added second node equipment; and the first node equipment with the network key before updating sends a data packet which can be received by the second node equipment or the central equipment through the first intercom network, or updates the network key and the node list through the second node equipment or the central equipment when receiving the data packet of the second node equipment or the central equipment. According to the method, the condition that the Bluetooth devices exit collectively in the networking process can be avoided, and the networking efficiency is improved.

The invention relates to the technical field of wireless communication, in particular to a method and system for positioning an interphone in a beacon mode, and the method comprises the following steps: based on radio signal data, analyzing the reflection and scattering characteristics of a signal in various media through simulating the propagation behaviors of the radio signal in various scenes, and obtaining a positioning result of the interphone; and generating a propagation characteristic analysis result. According to the method, propagation behaviors of signals in various scenes are simulated and analyzed, understanding of radio signal characteristics is enhanced, beacon deployment is optimized according to actual geographical and environmental conditions, the signal coverage range and the cost efficiency of beacon deployment are optimized, signals sent by an interphone are collected in real time, and emission parameters are adjusted; the signal definition is optimized, the interference of background noise is reduced, the availability and the safety of the signal are improved, the positioning accuracy and the response speed are improved by calculating the time difference of arrival of the signal in real time and combining multi-device cooperative positioning, and reliable and accurate service experience is provided for a user.

The invention discloses an interphone auxiliary rescue method and system based on rescue scene fall detection, and the method comprises the steps: obtaining rescue state collection information, carrying out the preprocessing, and constructing an operation environment data sequence, a communication state data sequence, and a motion state data sequence; constructing an anomaly detection model, and inputting the motion state data sequence to analyze abnormal motion state data in the real-time rescue task; performing fall detection on the target interphone user, and judging whether a fall condition exists or not; if the tumble condition exists, tumble risk assessment is carried out in combination with the tumble early warning information, and whether collaborative rescue needs to be carried out or not is judged; and if cooperative rescue needs to be carried out, interphones of other rescuers are searched in the current communication environment for cooperative rescue, and communication optimization is carried out in combination with the operation environment data sequence and the communication state data sequence so as to expand the communication range. Therefore, safety accidents caused by the fact that rescue workers cannot ask for help autonomously in emergency situations in rescue actions are avoided.

The invention discloses a coal conveying visual voice intercom system. The system comprises a central control module, a video acquisition module, an audio acquisition module, a voice intercom module, a video analysis module, a data storage module, a network communication module, an alarm module, a mobile terminal access module and a power management module. By fusing high-definition video monitoring, intelligent analysis and real-time voice intercom technologies, the safety and operation efficiency of the coal conveying system are remarkably improved. The system adopts a deep learning algorithm to monitor the state of the belt in real time, faults such as deviation, coal blockage and tearing can be recognized in advance, and sudden accidents are reduced; the full-duplex noise reduction voice intercom function ensures efficient communication between the site and the control center, and the emergency response speed is greatly improved. In addition, the system supports mobile terminal access and digital twinning technologies, remote monitoring and predictive maintenance are facilitated, and the operation and maintenance cost is effectively reduced.

The invention discloses an emergency talkback method with a wide-band and narrow-band simultaneous voice access capability. The method comprises the following steps: establishing communication by using a multimode emergency interphone with a broadband system and a narrowband system in an emergency communication scene, and sending a voice packet carrying a sequence mark on two networks according to a voice frame length of 60ms; the core network carries out voice frame alignment through a sequence mark, carries out completeness comparison on voice packets transmitted by the narrowband network and the broadband network within a buffer time of 300ms, regenerates a section of complete voice, converts the voice into a broadband format and a narrowband format, and issues the voice to the broadband network and the narrowband network; the voice is interrupted only under the condition that the transmission cannot be carried out by the two networks, otherwise, the voice playing is continuous. By the adoption of the method, when a single mode is disturbed, seamless switching is conducted, voice of another network is issued, the voice is not lost or duplicated, and manual switching of a user is not needed.

The invention provides a position state interaction method and system between interphones and related equipment, and the method comprises the steps: obtaining the first position state information of a local interphone in response to a position information updating request of networking equipment; modulating the first position state information, and transmitting the modulated first position state information to a surrounding networking interphone through radio frequency; receiving a radio frequency signal containing second position state information fed back by the surrounding networking interphone based on the automatic position return system; and generating an equipment list and a relative position map of the local interphone and the surrounding interphones in a first interface of the local interphone based on the first position state information and the second position state information. According to the technical scheme, the positions of the interphones can be automatically exchanged through the automatic position return system, the equipment and the positions of the interphones around can be displayed on the first interface of the interphone, and the technical problem that position interaction between the interphones can only be performed through voice communication and is very inconvenient is solved.

The invention relates to the related field of a peacetime and urgency dual-purpose communication technology, in particular to an interphone peacetime and urgency dual-purpose dual-mode parallel communication method. According to the invention, dual-mode parallel communication is carried out through a private network emergency channel and short message communication of a Beidou satellite communication system, the two modes operate independently and do not interfere with each other, when one communication mode is limited, the other communication mode can continue to work, parallel transmission of voice and data is realized, the problem that single communication fails in a complex environment is effectively solved, and the communication efficiency is improved. The continuity and reliability of communication in an emergency scene are ensured, key information is ensured not to be lost, and the development of emergency rescue work is facilitated.

The invention discloses an interphone control method and system with a dual-band duplex cross-band transfer function, and relates to the technical field of interphones, and the method comprises the steps: respectively recording the dual-band communication frequency of an interphone as a first communication frequency band and a second communication frequency band; constructing a standard talkback behavior feature set of each communication task; distributing all communication tasks of the interphone system to a first communication frequency band or a second communication frequency band; acquiring real-time talkback behavior characteristics of the interphone, and determining a real-time communication task corresponding to the real-time talkback behavior characteristics; and modulating and amplifying the talkback signal of the real-time communication task based on the first communication frequency band or the second communication frequency band corresponding to the real-time communication task, and transmitting the talkback signal through a transmitting antenna of the corresponding frequency band. The interphone has the advantages that efficient and simultaneous receiving and transmitting operation of the interphone on two different frequency bands is achieved, and a more flexible, reliable and wide interphone communication mode is provided.

The invention discloses an interphone implementation system based on voice automatic recognition, and relates to the technical field of voice recognition, and the system comprises the steps: collecting a voice signal of a user through an interphone microphone, and converting the voice signal into an analog electric signal; converting the analog electric signal into a digital audio signal by using an AAC audio coding algorithm, and carrying out coding processing; voice data packets lost in the transmission process are repaired in a data redundancy mode by using a forward error correction technology; framing the audio signal to be processed by using an overlapped sliding window method; detecting a voice area endpoint in the voice frame by using a double-threshold judgment method; training a speech recognition hidden Markov model through the speech area data and the corresponding statements in the information base; and obtaining statement information corresponding to the voice signal of the user by using a Viterbi algorithm. By arranging the audio repairing module, the endpoint detection module, the model training module and the voice recognition module, the voice quality is improved, the call distance is increased, and thus the working efficiency of a user is improved.

The invention relates to the field of interphone communication, and discloses a dual-mode interphone communication effect evaluation and optimization method based on multi-feature fusion, which comprises the following steps: carrying out data preprocessing on communication signals of different dual-mode interphones, extracting features of the communication signals, carrying out feature evaluation on the features of the communication signals, and calculating the communication effect of the dual-mode interphones; the communication effect of the interphone is judged, and finally the communication effect of the interphone is optimized according to the stability of mode switching between the interphones. According to the method, the communication effects of different communication modes of the dual-mode interphone are evaluated and optimized in a multi-feature analysis mode, so that the communication effect of the interphone is kept at a normal level and is not influenced, and the communication efficiency is improved.

The invention relates to a V2G double-gun charging pile metering self-checking control method, system and device. The method comprises the following steps: controlling a double-gun intercommunication relay to be closed in response to a self-checking starting instruction; controlling the first charging gun module to discharge outwards at a preset voltage and a preset current, and acquiring actual discharging data of the first charging gun module; the second charging gun module is controlled to charge the pair with a preset current and a preset current, and actual charging data of the second charging gun module is obtained; responding to the self-checking ending instruction, and controlling the double-gun intercommunication relay to be switched off; and under the condition that the metering error between the actual discharging data and the actual charging data exceeds the corresponding metering error range, determining a metering self-checking fault. By adopting the technical scheme, the closing of the double-gun intercommunication relay can be controlled to control the V2G double-gun charging pile to discharge and charge, so that the metering inspection of the charging pile is realized, an additional electricity meter and a complex circuit do not need to be additionally arranged, and the metering self-inspection of the charging pile can be conveniently realized.

The invention relates to the technical field of interphone communication, and discloses an interphone communication method based on a base station type relay, a base station, an interphone and a medium, and the method comprises the steps: transmitting a time frame to a network node in a first communication range based on a first voice communication channel, network nodes corresponding to all voice time slots in a time frame are broadcasted through a synchronous time slot of the time frame, the time frame comprises the synchronous time slot, a competition time slot and at least two voice time slots, and each interphone serves as one network node; acquiring voice information transmitted by the network node and other base stations through the voice time slot of the received time frame; broadcasting the received voice information to network nodes in a first communication range based on a first voice communication channel, and broadcasting the received voice information to other base stations in a second communication range based on a second voice communication channel, according to the invention, the mutual full-duplex talkback communication between the base station and the interphone in the whole large network can be realized, the communication time delay is short, the movable networking can be realized, and the networking is flexible.

The invention relates to the related field of interphone antenna production, in particular to an automatic antenna cap assembling mechanism which comprises an antenna conveying disc, a cap conveying disc, an antenna positioning frame, a cap positioning frame, a pressing assembly, a dispensing assembly, a feeding mechanism, a taking mechanism, a guiding mechanism and the like. A plurality of cap positioning frames are arranged on the cap conveying disc so as to convey a plurality of caps at the same time, glue is guided into the caps through the dispensing assembly, a plurality of antennas can be conveyed at the same time through the antenna positioning frames on the antenna conveying disc, and then the antennas are pressed into the caps through the pressing assembly. According to the antenna assembling device, the antenna positioning frames and the cap positioning frames are arranged, so that when one group of antennas and caps are taken out, the other group of antennas and caps can be synchronously assembled, the assembling process is more continuous, and the working efficiency can be improved.

The invention relates to the technical field of field operation safety management, and discloses a field operation personnel safety assessment method based on network data acquisition and positioning, which comprises the following steps: dynamically selecting an anti-interference mode by a multimode positioning technology to obtain positioning data, correcting track offset caused by terrain reflection interference by combining a track prediction model, and calculating the safety of field operation personnel. A signal enhancement node is utilized to construct an ad hoc network to optimize data transmission, a safety evaluation model fused with a topographic slope trend is established for purified positioning data, parameters such as a speed threshold and a safety judgment threshold are dynamically adjusted by detecting surrounding obstacle distribution in real time, and when a safety state is abnormal, the positioning data are subjected to safety evaluation. And generating an optimal risk avoiding path based on the terrain trafficability network, and synchronously starting three-channel emergency broadcast of the cellular network, the wireless talkback and the node relay. According to the method, the complex terrain positioning precision and the anti-interference capability are improved, the data transmission reliability is enhanced, dynamic risk assessment and early warning are realized, and the emergency response efficiency and the rescue success rate are improved.

The utility model provides an interphone with a high-stability communication structure, and relates to the technical field of interphones. The interphone with the high-stability communication structure comprises an interphone body, an antenna and a frequency modulation knob are arranged at the top of the interphone body, an anti-interference mechanism is installed at the top of the interphone body, and anti-falling blocks are fixedly connected to the four corners of the interphone body. According to the device, the four corners of the machine body are protected through the arranged anti-falling blocks, certain buffering is provided when the device falls to the ground, the machine body is effectively protected, clutters can be filtered out in the use process of the machine body through the arranged anti-interference mechanism, and stable transmission of signals in channels of the machine body is guaranteed; under the action of the binding belt, a user can conveniently hold the device by hand for use, the rotating seat is rotated to be perpendicular to the machine body by releasing the limiting mechanism, the machine body can be conveniently bound to the limbs of the user through the binding belt, and the device can be conveniently matched with the user for use in different environments.

The invention relates to the technical field of voice processing, in particular to an edge AI-based interphone audio processing method, system and device and a medium, and the method comprises the steps: collecting and analyzing an original audio through an audio collection assembly, and obtaining an audio feature set containing noise and scene features; inputting the image into an edge side audio analysis model to obtain a noise classification and scene recognition result; dynamically adjusting filter parameters, and generating a filtering parameter group adaptive to the current environment; extracting user voiceprint features to construct an exclusive voiceprint library, and optimizing the audio in combination with the filtering parameter group to generate a personalized processing audio; and training the model locally based on the personalized processing audio and the audio feature set, generating update parameters, and updating the audio analysis model for subsequent re-analysis. The technical problem that dynamic adaptation, personalized optimization and low-power-consumption and high-performance balance cannot be achieved at the same time in the prior art can be solved.

The invention relates to the technical field of duplex communication, in particular to an interphone control method and system with a double-segment duplex cross-segment transfer function, and the method comprises the following steps: obtaining frequency band interference information, recording an interference combination, obtaining a conflict path list, extracting a time index, calculating an available time length, forming a frequency hopping scheduling chain, and transmitting the frequency hopping scheduling chain to a server; according to the method, the effective frequency hopping path is screened by recording the frequency band interference combination, extracting the frequency hopping index and combining with the time overlapping rate, the frequency point scheduling accuracy and the time utilization rate are improved, the frequency band interference combination is matched, the frequency point role is set to generate a task structure chart, the direction identification is read to adjust the frequency band interaction operation, and the number and the period are set to construct a transfer control instruction. The difference value of the number of main and standby frequency points is calculated and classified, the frequency point distribution structure is optimized, resource mismatching is avoided, the sequence of frequency band switching is enhanced through a direction identification comparison and frequency point rearrangement strategy, the situation of mixed use of roles in communication interaction is reduced, and the stability and regulation and control flexibility of multi-frequency-band transfer control are improved.

Disclosed in the embodiments of the present application is a headset communication system. The headset communication system comprises: a bone conduction headset, comprising a first Bluetooth module; an intercom device, comprising a first external interface; an external communication module, comprising a second external interface and a second Bluetooth module. The external communication module is detachably provided in the intercom device and being coupled to the intercom device by means of the first external interface and the second external interface, and the bone conduction headset and the intercom device perform Bluetooth pairing by means of the first Bluetooth module and the second Bluetooth module so as to establish a Bluetooth connection.

The invention provides a dual-carrier interphone. The dual-carrier interphone comprises a receiver link and a transmitter link, the receiver link consists of an antenna matching network, a first electric tuning filter, a low noise amplifier, a second electric tuning filter, a frequency mixer, an intermediate frequency amplifier, an intermediate frequency demodulation chip and a baseband chip which are connected in sequence; a transmitter link adopts single-carrier transmission or dual-carrier transmission, and the single-carrier transmission is realized through a baseband chip, a TCVCXO crystal oscillator, a phase-locked loop chip, a transmission VCO, a pre-amplifier, an attenuator, a pre-amplifier, a driving-stage amplifier, an excitation-stage amplifier and an antenna matching network which are connected in sequence; on the basis, the dual-carrier transmission switches the output of the receiving VCO to a channel of the pre-amplifier, and controls the transmitting VCO and the receiving VCO to transmit simultaneously. According to the invention, one-channel transmission or two-channel transmission is realized by adopting one transmission link, simultaneous two-channel simultaneous talkback can be realized, and the call efficiency is improved.

1. The name of the product of this design: headphones. 2. The purpose of this design product: used for self-organizing network communication, audio transmission, audio playback, and intercom calls. 3. The design key points of this appearance design product are: the combination of shape, pattern and color. 4. The picture or photo that best illustrates the key points of the design: main view. 5. The design for which protection is sought includes color.

The utility model discloses a visual talkback host, which relates to the technical field of talkback hosts, and comprises a machine body and a fixing mechanism used for mounting the machine body, and the fixing mechanism comprises a mounting seat and a group of mounting plates; a rectangular groove is formed in one side of the mounting base, mounting grooves are formed in the top and the bottom of the interior of the rectangular groove, the two mounting plates are arranged at the top and the bottom of the rear portion of the machine body correspondingly, and the mounting grooves are sleeved with the mounting grooves; a hidden groove is formed in the bottom of the mounting base, two clamping strips are arranged in the hidden groove, through holes are formed in the top of the interior of the hidden groove and the mounting plate, the clamping strips are located in the through holes, a sliding groove is formed in the top of the interior of the hidden groove, a sliding block is arranged in the sliding groove, and the sliding block can move in the sliding groove; the clamping strip is limited, so that the clamping strip cannot move out of the through hole, rapid installation of the machine body is achieved, the machine body and the installation base can be separated only by sliding the sliding block and pulling out the clamping strip during disassembly and maintenance, and disassembly and maintenance are convenient.