179results about "Stations for two-party-line systems" patented technology

The invention discloses an earphone voice talkback keynote speaker cooperative control method suitable for a multi-person cooperative scene. The method comprises the following steps: adopting a decentralized networking mode; the priority of each device is dynamically adjusted, so that the device with the high priority can transmit voice preferentially; dynamically allocating bandwidth resources according to the current network state and the device priority; voice of high-priority equipment can be transmitted preferentially; each device can obtain the latest network state and priority data in time; and when the equipment is abnormal, the system automatically detects and processes the abnormity. Through dynamic priority allocation and intelligent bandwidth management, high-priority equipment is ensured to transmit voice preferentially, low-priority equipment is prevented from occupying bandwidth for a long time, meanwhile, a conflict detection and automatic avoidance mechanism can quickly respond to the transmission requirement of the high-priority equipment, the real-time performance and reliability of voice transmission are remarkably improved, and the voice transmission efficiency is improved. The method is especially suitable for a multi-person cooperation scene requiring efficient communication.

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 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 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.

The invention provides a special digital interphone with recording and broadcasting functions for a railway, which is characterized in that an emergency recording key is pressed down, a master control MCU controls an audio channel management module to communicate a microphone to a recording module and starts the recording module to record, a playback key is pressed down, the master control MCU controls the audio channel management module to communicate the recording module to an audio power amplifier, and the audio power amplifier is started to play the sound. The main control MCU is used for controlling the recording module to output recorded audio to the loudspeaker for playing through the audio power amplifier, and controlling the audio channel management module to communicate the recording module to the radio frequency transceiving and modulation-demodulation module by pressing the emergency broadcast key; and controlling the recording module to output the recorded audio to the radio frequency transceiving and modulation-demodulation module for modulation, and starting radio frequency periodic automatic emission, so as to realize emergency broadcast emission. According to the invention, the limitation that a traditional interphone depends on manual real-time broadcasting is solved, the dangerous case response speed is obviously improved, and the reliability of emergency communication is improved.

The invention provides a broadcast intercom system for rail transit, which can realize a double-line broadcast intercom system of an analog line and an Ethernet digital line, can overcome the defect that an early analog bus system is incompatible with a novel digital Ethernet system, can eliminate intercom echoes and audio howling during intercom, and has the advantages of simple structure, low cost and high practicability. Which comprises a plurality of driver control terminals, each driver control terminal comprises a passenger control unit, and the passenger control unit is connected with a loudspeaker and a microphone, and is characterized in that the driver control terminals are connected with other driver control terminals through a digital Ethernet bus and an analog bus respectively; the passenger control unit is connected with a passenger room broadcasting unit through a digital Ethernet bus and an analog bus and used for intercommunication between the driver control terminals, and the passenger room broadcasting unit is further connected with the passenger room broadcasting unit through a digital Ethernet bus and an analog bus and used for broadcasting of the driver control terminals; the passenger control unit is also connected with a passenger alarm terminal through a digital Ethernet bus and an analog bus, and is used for passenger emergency alarm talkback between the driver control terminal and the passenger alarm terminal.

The invention discloses a wireless talkback and smart home integrated system for a smart cell and a control method thereof, an ad hoc network wireless local area network is constructed through an ESP-WIFI-MESH protocol, and the wireless talkback and smart home integrated system comprises an outdoor host, a wireless repeater and an indoor extension. The system adopts mesh topology to realize multi-hop redundant transmission, automatically selects an optimal path and ensures communication reliability; dynamic priority scheduling of alarm, voice, video and smart home control data is supported, wherein the alarm signal is the highest priority. The indoor extension set is integrated with a multi-protocol gateway and is compatible with Wi-Fi / Bluetooth / ZigBee equipment, so that wireless access of smart home such as water, electricity and meters is realized. The community integrated management platform monitors the state of equipment in a centralized manner, and supports remote management, anomaly detection and emergency linkage. The system has the advantages of being low in cost, easy to expand, short in construction period and the like, the problems of complex wiring, signal shielding and the like in old community reconstruction are effectively solved, and community security and protection intelligence is improved.

The invention discloses an interphone power saving method and device for dynamically adjusting a low noise amplifier working point, and the method comprises the following steps: S1, periodically collecting a digital intermediate frequency signal in a receiving stage, and calculating a first parameter and a second parameter, the first parameter being a current received signal strength indication value, and the second parameter being a current signal-to-noise ratio estimation value; s2, when the first parameter is higher than a first threshold value and the second parameter is higher than a second threshold value, it is judged that a low-power-consumption access condition is met; s3, when N continuous cycles all meet the low-power-consumption access condition, the baseband processor outputs a first control signal, and the bias working point of the low-noise amplifier is switched to a low-power-consumption mode; and S4, in a low-power-consumption mode, if the first parameter is lower than a third threshold value or the second parameter is lower than a fourth threshold value, outputting a second control signal, and switching the bias working point of the low-noise amplifier to a high-performance mode, thereby solving the problem of high static power consumption of the interphone receiving link on the premise of ensuring the communication reliability.

The invention relates to the technical field of communication, and discloses a converged communication method for an analog signal interphone and a public network interphone, which comprises the following steps of: directly sensing the physical on-off state of a speaking right key of an analog interphone without voice signal encoding and decoding processing so as to generate a binary state signal; according to the method and the device, the state signal is mapped into a public network standardized uplink request signaling which does not bear user data, the public network standardized uplink request signaling is sent to serve as a cross-domain state beacon, and then selection scheduling of heterogeneous communication resources is triggered, so that inherent processing delay and power consumption of signal translation in an existing fusion mode are avoided, and the user experience is improved. In a content-independent lightweight beacon mode, nearly instantaneous state synchronization and efficient resource selection between heterogeneous networks are realized, and the operation reliability and adaptability of the system under complex working conditions are improved.

The invention provides a smoke and fire detection alarm method and a camera, and relates to the technical field of fire safety intelligent monitoring and emergency response, and the method comprises the steps: collecting an image of a monitoring area through the camera; analyzing the image of the monitoring area, extracting the form, texture, color and dynamic change multi-dimensional features of smoke and flame in the image, comparing the features with a preset smoke and flame feature database, analyzing the possibility of existence of smoke or flame features, and obtaining a possibility value; according to the possibility value, if smog or flame characteristics are analyzed and confirmed, an alarm triggering instruction is automatically obtained and sent out; based on an alarm triggering instruction, a remote alarm notification is automatically sent to a specified contact person through a wireless communication network in various modes of making a call, sending a short message or pushing a message by means of a built-in communication function. According to the invention, intelligent and efficient management and control of the whole process from early-stage accurate recognition of the fire behavior to emergency disposal can be realized.

The invention belongs to the technical field of vehicle-mounted communication, and discloses a wireless communication-based ministry label terminal group talkback method and system, and the method comprises the steps: obtaining ministry label terminal data, and constructing an initial group topological relation network based on the ministry label terminal data; network optimization is carried out to obtain a group communication structure network; on the basis of a group communication structure network, a dynamic spectrum allocation algorithm is adopted to allocate communication resources for all the ministry label terminals, and optimal communication links among the ministry label terminals are calculated and issued to all the ministry label terminals; each department label terminal establishes a group talkback channel based on the received optimal communication link, and carries out the real-time transmission of the voice data in the group through the group talkback channel; meanwhile, communication parameters in the real-time transmission process are adjusted in a self-adaptive mode according to the moving state of the vehicle; according to the invention, the problem of unstable communication in a vehicle-mounted environment is effectively solved, the utilization efficiency of spectrum resources is improved, and the adaptive capacity of the system in a complex road environment is enhanced.

The invention relates to the field of interphones, in particular to an interphone for an elevator wireless intercom system, which comprises a mounting plate, a video intercom unit arranged on the mounting plate, a connecting unit arranged on the video intercom unit and a safety unit arranged on the connecting unit. Under the action that the inclined surface I and the clamping groove are matched with the inclined surface III and the clamping surface, the video interphone is locked and unlocked in the mounting groove, so that a passenger can conveniently take down the video interphone, take down the video interphone, hold the video interphone by hand and move the video interphone to the side of the mouth for conversation and directly close the microphone to a sound source when an emergency occurs. And the pickup distance is shortened to 5-10cm from fixed 0.5-1m, so that the problem of voice blurring caused by long distance and noisy environment of the traditional fixed interphone is avoided, and the accurate transmission of help seeking information is ensured.

The invention relates to the technical field of medical communication, and discloses a doctor and nurse noise reduction intercom system for a robot operation environment, and the system comprises a medical care team cooperation relation network construction module which is used for constructing a professional cooperation relation graph for the operation environment through graph structure representation and role relation analysis; an eye movement multi-target tracking and intention recognition module; the multi-mode cooperation intention inference and communication mode matching module is used for inferring a cooperation intention and selecting the most suitable communication mode in combination with the eye movement interaction characteristics and the cooperation relation network; an adaptive microphone array beam forming module and a virtual conference space construction and dynamic optimization module; by fusing the eye movement tracking technology, the social relation network analysis and the multi-mode sensing technology, non-contact control, intelligent cooperative routing and adaptive beam forming are achieved, the technical problems of noise interference in an operating room, complex team cooperation and sterile operation limitation are effectively solved, and the communication quality and efficiency in the operation process are improved.

The invention discloses an intercom information processing method and system based on a voice control function, and belongs to the technical field of voice or sound processing of the Internet industry or the technical field of mobile voice service of the next generation information network industry, and the method comprises the steps: obtaining first state data of a first user; identifying a talkback demand mode of the first user according to the first state data and the target motion scene, wherein the talkback demand mode comprises a cross-domain talkback demand mode, a public domain talkback demand mode and a private domain talkback demand mode; determining a talkback network needing to be used and talkback information needing to be transmitted according to the talkback demand mode; and talkback information is transmitted through a talkback network. According to the scheme of the invention, the function expansibility and scene applicability of the interphone in the team motion scene can be improved, and the intelligence, comprehensiveness, accuracy and success rate of the interphone in processing the talkback information can be improved.

The present application relates to the technical field of audio denoising, and particularly relates to an intercom calling system with background noise suppression function for intelligent ward. The system comprises: an audio data acquisition module, which is used for acquiring initial audio data and performing frame processing to obtain audio frames; an audio segment division module, which is used for segmenting the initial audio data based on amplitude energy difference characteristics between the audio frames to obtain audio information segments; a crosstalk index analysis module, which is used for analyzing superposition conditions such as prompt tones in other intercom devices that may be contained in the audio information segments, analyzing frequency domain information and phase information of the audio information segments, distinguishing crosstalk audio segments and normal audio segments, and calculating crosstalk indexes of each crosstalk audio segment; and an audio denoising module, which is used for performing targeted denoising on the crosstalk audio segments according to the crosstalk indexes, improving the accuracy of background noise suppression, and effectively improving the denoising effect.

The invention discloses a secure talkback method and system based on quantum encryption, a medium and a product, and relates to the field of information security. According to the method, when the sending terminal needs to carry out talkback communication, the talkback request is sent to the service terminal to obtain the group identifier returned by the service terminal and the key identifiers corresponding to the group identifier, so that each group can obtain a unique quantum key, accurate isolation of group communication is realized, data security is guaranteed, and the user experience is improved. Even if the quantum key of a certain group is leaked, other groups are not affected. The sending terminal processes the audio data in the data encryption queue through the special encryption thread, so that asynchronous encryption processing of the audio data is realized, and system response delay caused by blockage of a main thread in the encryption process is avoided.

The invention discloses a multi-path driver passenger full duplex emergency call and stop announcement broadcast coexistence method, and relates to the technical field of audio processing. According to the scheme, station reporting broadcast and multi-path talkback signals are transmitted at the same time through a single MVB bus, coexistence of multi-path driver passenger emergency calls and station reporting broadcast and talkback of a driver with multiple passengers at the same time are achieved, hardware redundancy of a traditional discrete communication channel is omitted, the system complexity and cost are reduced, and the communication efficiency is improved. According to the weight, the multiple paths of talkback audio data are combined, the voice quality of the multiple paths of audio signals is improved, and signal conflicts are also avoided.

The invention relates to the technical field of communication equipment, in particular to a portable multifunctional interphone which comprises an interphone body sleeved with an interphone shell and further comprises a sinking groove formed in the back of the interphone shell, and a fixing assembly is arranged in the sinking groove and used for fixing the interphone body in the interphone shell to the arm of an operator; the adjusting assembly is used for adjusting the bending angle of the fixing plate; the limiting assembly is used for limiting the interphone body in the interphone shell; the connecting device has the beneficial effects that through cooperation of third clamping blocks and corresponding third storage grooves, vertical connection of the first connecting plates and the second connecting plates is achieved, the multiple sets of third connecting plates extend out of the sinking grooves, and then through cooperation of the third clamping blocks elastically arranged on the third connecting plates and the third storage grooves in the adjacent third connecting plates, the third connecting plates can be conveniently connected; the third connecting plates form the arc-shaped fixing plate, and the interphone body on the interphone shell can be conveniently fixed to the arm of an operator through the arc-shaped fixing plate.

The application discloses a building intercom system based on network topology and a configuration method thereof, wherein the system comprises a plurality of terminal devices, an intermediate conversion unit and a configuration unit; the intermediate conversion unit is connected with the plurality of terminal devices, and is used to acquire topology of the whole system and physical position information and a physical address corresponding to each terminal device; the configuration unit is connected with the intermediate conversion unit, and is used to generate a device information mapping table, acquire the physical address corresponding to each terminal device to generate a physical position mapping table, and distribute an ID number corresponding to a same port number under a same intermediate conversion unit to a corresponding terminal device according to a mapping relationship between the device information mapping table and the physical position mapping table; the ID number information of the terminal device is associated with the physical position information where the terminal device is located, so that ID number configuration is automatically performed, thereby not needing manual ID number configuration on the terminal device, time and labor are saved, and safety is greatly improved.

The invention discloses a building talkback intelligent emergency safety center system based on multi-mode perception. The building talkback intelligent emergency safety center system comprises a perception layer, a data processing layer, a decision response layer and a collaboration layer. According to the invention, an active security and protection mechanism integrating real-time monitoring, second-level data processing, dynamic decision making and cross-domain linkage is constructed, so that rapid emergency response within one minute is realized, access control locking can be triggered within 10 seconds in a high-risk scene, alarm pushing and linkage of 110 and medical resources are realized, and the emergency handling efficiency is effectively improved; through multi-mode perception fusion and AI cross validation, environment interference and real risks are effectively distinguished, the false alarm rate is effectively reduced, and the recognition accuracy of events such as falling down and invasion of the old is remarkably improved; and the intercom system is used as a core to seamlessly integrate the elevator, the gas valve and other terminals, data intercommunication and co-processing with community medical treatment, security and other resources are realized, information islands are broken, and the comprehensive security cost of the community is reduced.

This invention relates to the field of industrial communication technology and discloses a communication method and apparatus for industrial switches to connect walkie-talkies without a gateway. The method involves a management unit receiving a walkie-talkie terminal registration request, assigning a unique virtual LAN identifier, configuring a multicast group address, and establishing a binding relationship. An analog audio interface module receives analog voice signals and accompanying signaling, performs sampling, analog-to-digital conversion, compression encoding, and parses the PTT trigger signal to generate a transmit enable signal. Data frames are then encapsulated and sent to the switching chip. The switching chip queries the forwarding table based on the transmit enable signal and the walkie-talkie identifier, adds a virtual LAN identifier, and forwards the data frames via multicast. The management unit continuously monitors link quality and automatically switches the channel to a backup port when quality deteriorates, ensuring stable and reliable communication, simplifying the network architecture, and reducing costs.

The invention discloses a building talkback indoor unit system, method, equipment and medium, and the building talkback indoor unit system comprises a base and a mobile terminal. The base comprises an AP module, and the AP module is used for creating a first wireless network and realizing information interaction between the first wireless network and a wired network; the mobile terminal comprises a first application module, a corresponding first wifi module, a second application module and a corresponding second wifi module, the first application module is accessed to a first wireless network through the first wifi module, and the second application module is accessed to an external second wireless network through the second wifi module. Two different networks are respectively accessed through the two wifi modules, the private network is special, and respective application functions in the two networks can be simultaneously realized, so that the richness and the stability of the building intercom indoor unit system are improved.

The utility model discloses a hand label with a signal amplification function, and particularly relates to the technical field of hand labels, the hand label comprises a hand label main body, the hand label main body is fixedly provided with a spring connecting rope and a connecting port, the spring connecting rope is used for connecting a radio station, and the connecting port is used for connecting an earphone. An adjusting switch used for controlling audio signals is fixedly arranged at the top of the mobile phone main body, a signal amplification plate is fixedly arranged in the mobile phone main body, an adjusting knob is installed on the signal amplification plate and penetrates out of the outer side of the mobile phone main body, and a protection assembly is arranged on the outer side of the adjusting knob in a sleeving mode. According to the utility model, the adjusting switch is arranged on the mobile phone main body and is used for controlling audio signals, and meanwhile, the signal amplification board in the main board can be used for amplifying the audio signals, so that the signals are propagated farther, weak received signals can be amplified and enhanced, and the signal-to-noise ratio of the signals is improved; the power of the signal amplification board can be adjusted by using an adjusting knob.

The invention relates to a communication device for simultaneous bidirectional voice communication between at least two speaking stations (3) on a printing material processing machine, wherein the speaking stations (3) are connected to each other via a bus system (4). The invention is characterized in that each speaking station (3) has at least one loudspeaker (2) and a microphone device (1) with several microphone capsules (6) as well as a circuit board (8) with electronic components for improving speech intelligibility during voice communication between the speaking stations (3).

The utility model provides wireless module equipment supporting bidirectional visual intercom, which relates to the technical field of electronic equipment and comprises a main control chip, a screen seat, a power supply module, a network distribution module, a voice module and an image sensor which are integrated on a circuit board. The main control chip establishes communication connection with terminal equipment through the distribution network module, sends first image information acquired by the image sensor and first sound information acquired by the voice module to the terminal equipment, and receives second image information and second sound information fed back by the terminal equipment; the screen seat is used for being connected with a display and transmitting the second image information sent by the main control chip to the display so as to display the second image information; the power supply module is used for connecting an external power supply and providing power for the main control chip, the distribution network module, the voice module and the image sensor; the voice module is used for collecting the first sound information and playing the second sound information. A display and a battery do not need to be integrated, and the equipment size is reduced.

This application proposes a smart wearable device and a multi-party calling method and system, belonging to the field of multi-party calling technology. The multi-party calling method involves a smart wearable master device uniformly collecting user voice signals from itself and each smart wearable slave device, identifying the target language of each device, and uniformly interacting with the cloud. The cloud performs targeted cross-language translation based on the target language of each device. The smart wearable master device then performs speech synthesis and enables local playback on the master device and targeted transmission and playback on the slave devices. Through accurate device-specific language translation in the cloud and targeted synthesis and playback on the master device, accurate translation and efficient transmission of each user's voice to the corresponding target language of all other users in a multi-party call can be achieved. This allows users speaking different languages ​​to complete barrier-free multi-party voice calls through smart wearable devices, significantly improving the user experience and adaptability of smart wearable devices in multi-party cross-language calling scenarios.

The invention provides a multifunctional interphone, and relates to the technical field of interphones, the multifunctional interphone comprises a control cabinet interphone, a car roof interphone and a pit interphone which are respectively arranged in an elevator machine room, a car roof and a pit, and signal interaction is realized through a functional safety field bus or RS485 / CAN (Controller Area Network); car roof / pit signals are integrated, and a safety circuit state is output; the car top interphone collects a car top switch signal and forwards elevator control information to the car equipment; the pit interphone collects a pit switch signal and supports the uploading of a lighting switch state, a dual-channel collection and function safety field bus technology is adopted for a safety signal, and reliable transmission of the signal is ensured through SI L3 authentication; non-safe signals are transmitted through a single channel, so that the cost is reduced; the control cabinet interphone realizes a complete safety loop and a UCMP function through PASSREAL technical software, and supports parameter configuration of each switch logic; the car roof interphone transmits an elevator control instruction in a transparent mode, and a car roof control panel and a communication cable are omitted.

The invention relates to the technical field of building talkback, in particular to a building talkback direct call type pressure key mistaken touch prevention method, which comprises the following steps of: detecting whether a card swiping event occurs, if the card swiping event occurs, closing a key function, and restarting the key function after the response of the card swiping event is detected until the response of the card swiping event is detected; if neither the card swiping event nor the key pressing event occurs, the device is initialized; if the card swiping event does not occur, the key pressing event occurs and the key pressing event response is suspended, if the card swiping event occurs within a suspended time threshold value, the key pressing event is cancelled, if the card swiping event occurs beyond the suspended time threshold value, the key pressing event is responded, and if the card swiping event does not occur, the key pressing event is responded. The building talkback direct calling type pressure key mistaken touch prevention method is simple in structure and rapid in response, the situation that a corresponding resident or a management center end is called due to mistaken touch of the pressure key can be avoided, invalid communication is reduced, and the use convenience of equipment is guaranteed.

The present application discloses an intercom and an intercom method. The intercom includes: a modulator, a second recognition controller, a power amplifier, a PTT input terminal, and a voice output terminal. When the second recognition controller recognizes that the PTT control signal from the PTT input terminal is not yet valid, but recognizes valid voice data and also recognizes that an initial voice identifier is set, it controls the modulator and the power amplifier to start working, and modulates and amplifies the power of the valid voice data from the voice output terminal for output. After the second recognition controller recognizes that the PTT control signal changes from a valid state to an invalid state, if there is still valid voice data, it continues to receive the valid voice data, and the modulator and the power amplifier continue to work until it recognizes the end voice identifier, and then controls the modulator and the power amplifier to stop working. Based on the present application, it can effectively solve the problem in the prior art that due to the uncoordinated cooperation between the intercom speech and the PTT key operation, the speech during the initial stage and the end stage of the speech is lost.