15results about "Stations for two-party-line systems" patented technology

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.

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.

This invention relates to the field of wireless communication technology, and in particular to a full-duplex wireless intercom method and device based on LoRa technology. The method includes: simultaneously performing reception monitoring and voice monitoring; upon detecting a trigger word in the voice, changing the reception monitoring parameters and notifying a relay node to temporarily store data; upon receiving a temporary storage confirmation notification from the relay node, initiating voice reception; matching the received voice data with a corresponding transmission method and sending the voice data to the relay node according to the matched transmission method; after the voice data transmission is complete, notifying the relay node to perform downlink data transmission and initiating reception monitoring; upon receiving a downlink transmission confirmation notification from the relay node, stopping data transmission and changing the reception monitoring parameters; and receiving data forwarded by the relay node, converting and playing it. This invention achieves a near-full-duplex communication experience on LoRa, a low-power wide-area network technology, through a logical design of simultaneous monitoring-trigger wake-up-intelligent transmission-coordinated transmission and reception.

This utility model relates to the field of communication device technology and discloses a wireless intercom communication device for tunnels, including a walkie-talkie. The walkie-talkie has an internal mounting hole, and the connecting sleeve has an internal locking hole. The locking hole engages with a locking block. This utility model utilizes a telescopic rod fixedly installed inside the mounting hole, with the locking hole engaging with the locking block. During normal operation, the connecting sleeve is first fitted onto the outside of the walkie-talkie. Then, the locking block is pressed towards the center of the walkie-talkie, causing the inner wall of the connecting sleeve to slide against the locking block. Simultaneously, as the connecting sleeve moves upwards to engage the locking hole with the locking block, the locking block, through the spring force, pushes the telescopic rod forward, engaging the locking block with the locking hole. This secures the walkie-talkie to the connecting sleeve, preventing it from easily falling off and causing damage during vigorous operation.

This application relates to the technical field of public network intercom, and discloses a remote scheduling method and system for public network intercom terminals based on AI voice interaction. The terminal collects the user's voice data stream; performs streaming recognition and intent parsing on the voice data stream; maps structured instructions to corresponding functional module APIs according to a preset extensible instruction table; verifies the user's role and current scene state through an RBAC scene lock model to determine whether the user has the operation permission to execute the API; if the permission verification passes, a priority queue mechanism is used to distribute the API to the corresponding functional module, controlling the parallel execution of operations by each functional module while arbitrating conflicts between concurrent tasks; otherwise, a permission insufficient prompt message is directly output to the terminal; after feedback and aggregation of the execution results, dual feedback of voice broadcast and interface prompt is output to the terminal, while recording the execution log, solving the problems of long operation chains and delayed feedback in the prior art.

This utility model relates to the field of walkie-talkie technology and discloses a battery fixing structure for a walkie-talkie, including a battery pack. The tail of the battery pack, in conjunction with the main unit, is equipped with a latching structure for detachable installation. The latching structure includes a latch seat fixedly connected to the tail of the battery pack, a slot and a movable pin at the bottom, and a corresponding locking pin in the battery slot of the main unit. This utility model features a latch seat at the tail of the battery with a horizontally elastic, push-pull-retractable movable pin. This, in conjunction with a locking pin in the main unit consisting of a safety pin and a locking pin, allows the battery pack to be locked in place when the battery is inserted into the main unit. The locking pin hooks onto the horizontal surface of the movable pin in the vertical direction, preventing the battery pack from being lifted. This locking mechanism eliminates the need for elastic deformation of the plastic, resulting in a stable and durable structure. Simultaneously, the safety pin, in conjunction with the latch seat, enables quick locking, providing vertical installation stability and forming a basic safety structure. This dual-stabilized structure is easy to install and remove, making it highly practical.

This utility model provides a video intercom door device, relating to the field of video intercom technology. It includes a fixed base, with a video intercom fixedly installed inside the fixed base near the front. A built-in groove is formed inside the fixed base near the left side. A lifting component is installed inside the built-in groove near the back. Protective components are symmetrically installed inside the fixed base at the top and bottom of the built-in groove. A first control button is installed at the corner of the front of the fixed base near the right side and bottom. A second control button is installed on the front of the fixed base above the first control button. By using the fixed base, lifting component, protective components, first control button, and second control button in combination, the video intercom can be freely adjusted up and down. Compared to traditional fixed video intercoms, this greatly improves practicality and effectively enhances the user experience.

A fire rescue command device includes a command box and several walkie-talkies. Each walkie-talkie comprises a main unit and multiple sub-units, capable of detecting firefighter stationary status, ambient temperature, ambient gas concentration, firefighter location, and providing audible and visual alarms. The command box includes a box body and a cover, as well as a display module, an information module, a map module, and a wireless module, all electrically connected to a command and control module. The top surface of the box body has a main receiving slot and several sub-receiving slots for housing the main unit and sub-units. The cover is hinged to the top surface of the box body. The display module is a screen mounted on the cover. The information module records the ambient temperature and ambient gas concentration detected by each sub-unit, and the map module stores pre-stored map data. Therefore, using this fire rescue command device can effectively improve equipment donning efficiency, alert firefighters to take timely evacuation, and significantly enhance fire rescue safety.

The application discloses a voice gateway of a DMR and Bluetooth fusion intercom and an implementation method, and belongs to the technical field of wireless communication. The method mainly realizes voice intercommunication between heterogeneous networks through a gateway node strategy module of a network layer and a gateway voice processing module of an audio layer. The gateway node strategy module adopts a distributed election algorithm to realize dynamic distribution of master-slave roles and automatic switching of faults in a multi-gateway scene, and ensures high availability of forwarding services; the gateway voice processing module solves loop, repetition, jitter and call conflict problems in cross-network forwarding through loop suppression, voice deduplication, adaptive buffer scheduling and other algorithms, and guarantees the integrity and continuity of voice transmission. The application realizes seamless fusion of a DMR professional intercom network and a Bluetooth Mesh near-field network, expands the coverage range of the intercom system, improves the communication reliability and flexibility in a heterogeneous network environment, and meets the cross-network voice intercommunication needs of public safety, emergency command, industrial production and other scenes.

Embodiments of the present description provide a call system, a call host, and a call terminal. The call system comprises a call host and a plurality of call terminals. The plurality of call terminals are grouped into one or more call groups; at least some call terminals among the plurality of call terminals are configured to acquire voice signals of users and send the voice signals to the call host; the call host is configured to perform, for each call group, voice mixing processing on the voice signals sent by the call terminals in the call group, to obtain a mixed signal and send the mixed signal to each call terminal in the call group; at least some of the call terminals are further configured to perform silencing processing on the received mixed signal, so as to eliminate the voice signals acquired by said call terminals, and play the mixed signal that has undergone the silencing processing. The method can improve the utilization rate of communication time slots, increase the number of call terminals in the call system, and in addition, reduce the power consumption of the call host.

This invention provides a nuclear power plant cold source monitoring integrated communication and dispatch system, comprising: a comprehensive command and dispatch console for centralized call answering, voice dispatching, mobile video dispatching, and trunked intercom dispatching; a signaling conversion module for converting different terminal extended SIP protocols and converting heterogeneous SIP protocols into a unified SIP protocol; a voice fusion module for fusing voice from heterogeneous communication networks to enable voice interoperability between different communication network devices; a video fusion module for fusing video streams from different types of video devices to achieve video interoperability; and a trunked dispatch module for providing dispatching applications for mobile devices. This invention also provides a nuclear power plant cold source monitoring integrated communication and dispatching method. This invention realizes functions such as voice communication, data push, video push, and recording / recording between multimedia terminals, and achieves front-end diversification through the unification of the intelligent terminal platform.

The application relates to an elevator digital intercom anti-crosstalk binding method, and relates to the technical field of elevator digital intercoms, which comprises the following steps: setting each intranet device as a node, and constructing pheromones containing signal strength, signal-to-noise ratio, communication reply time, shaft number, position number and unique identification code; taking a machine room gateway as a management node, sending a query instruction to each node, receiving and recording the pheromones; iteratively updating the pheromones at a preset period; after eliminating the bound nodes, adopting a relative numerical relationship to perform multi-dimensional logical judgment, giving a weighted coefficient to each dimension judgment result to calculate a comprehensive matching value, determining the nodes of the same shaft according to the comprehensive matching value and binding the nodes. The scheme provided by the application can effectively overcome the misjudgment caused by signal attenuation and crosstalk through the pheromone construction, iteration and comprehensive judgment mechanism, and can improve the accuracy, reliability and environmental adaptability of the device binding by cooperating with multi-dimensional relative value judgment and weighted coefficient calculation.

The application relates to an intelligent query method of an information system based on a fusion communication technology, which comprises the following steps: a talkback terminal initiates a voice call to an intelligent console station, the intelligent console station receives and saves voice data, and sends the voice data to an AI server; the AI server processes the received voice data; the intelligent console station initiates a query request to an information system server according to the received instruction interface parameter, and receives a query result from the information system server; the intelligent console station integrates the response text and the query result, generates short message content, and sends the short message content to the talkback terminal which initiates the request. Through a fusion communication platform, data sharing of multiple information systems is realized, data application is deepened, and the use efficiency of data is improved; through AI technical means such as natural language processing, voice recognition technology and machine learning, the intelligent level of the fusion communication platform is improved.

The application relates to a talkback voice quality optimization method, device, equipment and storage medium, which applies a first talkback device, the first talkback device is in communication connection with a second talkback device, the method comprises the following steps: acquiring sound information collected by the first talkback device in real time, and analyzing the sound information to obtain a first voice state of the first talkback device, the voice state comprises a call state and a mute state; recording the first voice state and sending the first voice state to the second talkback device, and receiving a second voice state sent by the second talkback device in real time; according to the first voice state and the second voice state, performing echo cancellation or noise suppression processing on the sound information according to a preset sound processing mode, and then sending the sound information to the second talkback device. According to the voice state of the talkback devices at two ends, the sound processing mode of the talkback device is adjusted in real time, the echo cancellation and noise reduction processing effect of the sound is realized, and the voice quality is ensured.