1141results about "Stations for two-party-line systems" patented technology

The invention relates to a USB (Universal Serial Bus) interface multiplexing interphone and a control method thereof; the interphone comprises an USB interface, an interface detection module, a control module and at least two function processing modules which are arranged on the interphone, wherein the interface detection module is used for detecting whether a signal detection pin on the USB interface of the interphone is effective and generating a pin detection signal; the control module is used for judging whether the USB interface on the interphone is connected into an exterior plug-in unit according to the pin detection signal and the type of the exterior plug-in unit when the USB interface is connected into the exterior plug-in unit; and the control module is also used for controlling the functional processing modules in the interphone corresponding to the type of the exterior plug-in unit to be communicated with the exterior plug-in unit according to the judgment result of the type of the exterior plug-in unit. The USB interface of the interphone provided by the invention can be applied to USB channel transmission equipment, plug-in modules of headsets and the like; and the multiple functional interfaces are multiplexed on the interface with very small size, thereby the volume of the interphone is reduced, and the USB (Universal Serial Bus) interface is very suitable for the small-sized portable interphone and has very obvious cost advantage.

Disclosed are a control-related and mobile communication-based building talk-back and door control method and a system which can be easily maintained; the system at least comprises an entrance machine at the entrance of a building unit, and a plurality of indoor machines in the unit; the entrance machine controls the opening and closing of a corresponding door lock. The invention is characterized in that the system also comprises a mobile communication server which completes the signal and data transmission between the entrance machine and the indoor machines to realize audio and video information interaction between the entrance machine and the indoor machines. The control process is as follows: A, the entrance machine calls the indoor machines through the mobile communication server; B, the indoor machines and the entrance machine are interacted through data and send command information to the entrance machine through the mobile communication server so as to control the operation of the door lock device. The system of the invention has low construction cost and easy maintenance.

The invention discloses a method, system and cluster cloud base station of realizing the interphone communication between a private network and a public network. The cloud base station technology is introduced, a private network is provided with a cluster cloud base station, and the cluster cloud base station solves the problem of voice communication between a private network terminal and a public network terminal. The invention possesses the following beneficial effects: the interphone communication between the private network terminal and the public network terminal is realized in a cluster cloud base station mode, allowing a mobile terminal to communicate with other terminals (including terminals accessed to both the private network and public network) through the public network when unable to access to the private network; according to the invention, both individual calling and group calling between private network terminals and public network terminals can be realized, and the practicality is strong.

The invention provides a method of free group call and talkback among a plurality of mobile phones in a mobile communication network, in order to solve the problem of non real time intercom with no low cost among mobile phones, which includes the following steps: A) create talkback server and access to the mobile communication network; B) arrange a talkback client side software on the mobile phone and register a talkback account number; C) operate the talkback software on the mobile phone, which is in online talkback state; D) select or input an object contact person talkback account number to initiate talkback; E) the mobile phone client side compresses the talkback information to data packet for sending; F) the client side of another mobile phone decompresses the data packet and extracts instant information content to input to the mobile phone after receiving the data packet. The invention develops new application for prior communication network and mobile phone, improves mobile phone network data application, such as pulling GPRS, CDMA network data business increment and at the same time, provides mobile phone users with a new communication mode with more convenient, lower and freer communication charges.

The invention provides a voice recognition method and a voice recognition device in an air traffic control system. The method comprises the following steps: collecting ground-to-air dialogue voice information from a ground-to-air voice communication link; collecting a PTT signal, segmenting the ground-to-air dialogue voice information according to the PTT signal to generate air traffic controller voice information and driver voice information in an aircraft; and carrying out voice recognition on the air traffic controller voice information and the driver voice information in the aircraft according to a preset air traffic control ground-to-air dialogue grammatical rule bank and a preset air traffic control ground-to-air dialogue keyword bank respectively, and outputting recognition results in corresponding texts. Through using a voice rule and keyword recognition method, the invention still provides accurate voice recognition service in the air traffic control system with high application complexity so as to further improve automation level of air traffic control and navigation safety and reliability in China, and the voice recognition device also can be applied to various complex application scenes in the aviation field.

The invention discloses a wireless talkback communication system based on an LED (Light Emitting Diode) miner cap illuminating lamp. The communication system comprises a miner cap body, a light wireless transmitting end, a receiving end, a control unit, an LED miner cap and a charging battery, wherein the light wireless transmitting end, the receiving end, the control unit and the LED miner cap are arranged on the cap body; the control unit is connected with the transmitting end and the receiving end to constitute a receiving-transmitting system; the control unit comprises a singlechip and a clock module and an indicating lamp module which are arranged at the periphery of the singlechip; and the singlechip is used for controlling the receiving end and the transmitting end, finishing processing a transmitting signal and a receiving signal, performing AGC (Automatic Gain Control) amplification and A / D (Analog to Digital) conversion on an audio signal acquired from the transmitting end, encoding a digital signal, loading the encoded signal on an LED modulation illuminating circuit, controlling the receiving end to convert a received light signal into an electric signal and regenerate and reduce the electric signal into a digital signal, reducing the digital signal output by the receiving end into a voice signal by performing Manchester decoding and D / A (Digital to Analog) conversion, and transmitting the voice signal to a loudspeaker of the receiving end.

A communication device integrating talkback and mobile phone functions comprises a first switching antenna, a mobile phone radio-frequency signal receiving-transmitting module, a mobile phone baseband signal processing module, and a man-machine interface module that are sequentially connected and used for mobile phone communication, as well as a second switching antennae, a talkback radio-frequency signal module, a talkback signal demodulating module, and a talkback baseband signal processing module that are sequentially connected and used for talkback communication. The mobile phone radio-frequency signal receiving-transmitting module has a clock interface for providing reference clock to the talkback radio-frequency signal module, so that the talkback communication and the mobile phone communication can share one clock, thereby reducing manufacturing cost of a manufacturer and user's purchase cost. Meanwhile, the mobile phone baseband signal processing module performs signal input and output with the talkback baseband signal processing module through idle control interfaces and data interfaces thereof, so as to transmit audio signals and text signals for free through talkback communication, thereby reducing user's service cost.

The invention discloses a vehicular intercom device, an intercom servicer, a vehicle driving location displaying method and a system. The vehicle driving location displaying method comprises receiving an inquiring request of a vehicular driving location of a target vehicle, wherein the intercom device of the target vehicle and the intercom of a vehicle belong to the same group and the vehicle is used for initiating the inquiring request; obtaining current location information of the target vehicle based on the inquiring request, wherein the current location information is reported upward to a navigation servicer by the target vehicle; and displaying the current location of the target vehicle on a navigation map based on the current location information of the target vehicle. The vehicular intercom device, the intercom servicer, the vehicle driving location displaying method and the system are efficient, accurate and timely to display current locations of other vehicles of the group so that using experience of the intercom device for users can be enhanced.

The invention discloses a control method and system of intercom talking voice gateway of broadband and narrow band fusion on android platform which comprises the set of the priority of the call app on the android platform.When users launch the voice forward from narrow band to broadband on the android platform, the gateway receives a narrow band intercom call start event and receives a broadband intercom start event after a broadband start;and at this point the direction of the gateway from narrow band to broadband and working state is connected;after receiving the narrow band intercom incoming call end event,the gateway stops the broadband intercom and sets the timed message;after receiving the broadband intercom call end event,the gateway cancels the timed message and reverts to the idle state and eliminate the end of the incoming call by the delay of timed message. The invention utilizes the gateway to connect the users of narrow band intercom of same frequency with the voices of broadband intercom of same group,which achieves the interconnection.

This invention relates to a handheld communication terminal, which comprises a central processing unit, a communication module, a GPS module, an interphone module and a display module, wherein the central processing unit controls the work of each module respectively through a serial port; the communication module communicates with other handheld communication terminals through a mobile communication network; the GPS module searches to obtain geographical position data of the positioned handheld communication terminal and then transmits the data to the central processing unit through the serial port, and the central processing unit performs analytical processing and transmits corresponding electronic map information to the display module to display; the interphone module is communicated with other handheld communication terminals in certain range through a command center; and the central processing unit sends instructions to implement switches, and the communication module or the interphone module is used for performing communications with other handheld communication terminals.

The invention discloses a face talkback recognition system. The face talkback recognition system comprises a building entrance machine and a user mobile phone client, wherein the building entrance machine comprises a touch screen, a display screen, a face camera, a key, an entrance guard system, a peripheral master control module and a cloud data storage module; and the peripheral master control module comprises an NFC recognition module, an RFID card reader, a fingerprint recognition module, a face recognition module, a voice recognition module and a wireless reception / transmission module. The resident can open the door through the manners such as key input, NFC mobile phone wireless recognition, RFID card reading recognition, fingerprint recognition and face recognition, or open the door through a manner of NFC mobile phone wireless recognition, so that the functions are diversified; and an indoor interphone is saved, the resident can communicate with the visitors anytime and anywhere in real time through the wireless reception / transmission module, and does not need to stand up to go to the interphone, so that convenience and rapidness are provided, and the total cost of the system is saved at the same time.

The invention provides a mobile video system based on building entrance guard visual voice intercom. The mobile video system includes a mobile intelligent terminal with an APP application program, an entrance guard host device, and a data server, the mobile intelligent terminal and the data server are in bidirectional communication via network, the server and the entrance guard host device are in long connection and in bidirectional communication via network, and the mobile intelligent terminal is connected with the entrance guard host device. The invention further provides a mobile video method based on building entrance guard visual voice intercom. Through the adoption of Bluetooth / NFC wireless communication, a lot of materials, time, and manpower cost are saved, and later maintenance and system update are convenient and simple. The system and method provided are energysaving and environmentally friendly, a user can know that he / she has visitors and opens his / her door for the visitors at any time and places only with his / her mobile intelligent terminal instead of a conventional IC or ID card, so that the convenience is facilitated.

A method for realizing vehicle-mounted voice intercom by using a mobile network aims at overcoming the defects that the call quality cannot be ensured or the call cost is higher in traditional voice intercom in the prior art. The invention provides the method for realizing the vehicle-mounted voice intercom by using the mobile network. Hardware comprises a set of vehicle-mounted navigator and voice intercom server; the vehicle-mounted navigator and the voice intercom server form a voice intercom system through the mobile network; and a voice intercom program is installed on the vehicle-mounted navigator. The method mainly comprises five steps, namely transmitting an intercom request, recording the speaking content of a user, transmitting the record through the mobile network, transferring data by the voice intercom server and receiving and playing the record by other users. According to the method disclosed by the invention, the transmitting quality of voice is ensured and the cost of intercom between users is reduced; and the method is suitable for environments for carrying out vehicle-mounted voice intercom.

The invention provides a building intercom system and a building intercom method. The building intercom method comprises the following steps: verifying the identity of a visitor through fusion of facial image and sound wave spectrum; judging whether the visitor has a historical visiting record; if yes, further judging whether the visitor is an allowable person or a forbidden person in the historical visiting record, if the visitor is an allowable person, suggesting opening or directly opening a building door control, and if the visitor is a forbidden person, suggesting closing or directly closing the building door control; if the visitor has no historical visiting record, pushing the acquired facial image and the acquired sound wave spectrum to a user; selecting whether to open the building door control for the visitor by the user. In the whole process, the identity of the visitor is verified through fusion of the facial image and the sound wave spectrum, interference from other unstable factors can be avoided and the recognition accuracy can be ensured; in addition, when the visitor has the historical visiting record, the building intercom system can intelligently and automatically do corresponding treatment, so that user involvement can be reduced and operation is simple and convenient.

The invention discloses a vehicle access control system for a district. The vehicle access control system comprises: a data storage part; an entrance gate assembly, which comprises a first gate body, a first door leaf interfering in a passage path, a first camera and a second camera; and an image identification assembly, which comprises a first comparison module, a first output module, a second comparison module, a second output module and a control module. The control module is configured to sound an alarm when license plate information or face information falls into a blacklist set; and the second comparison module determines acquired face information and face information of an owner output by the first comparison module belong to the same owner, and the first door leaf is opened, or otherwise closed. According to the invention, the first camera and a third camera are used for long-distance identification of a license plate while the second camera and a fourth camera are used for long-distance identification of the image of the user, so the determination time of the access control system is shortened; and vehicles without authority are not allowed to pass through dual-identity authentication, so vehicles in the district are prevented from burglary, and the vehicle access control system is safer and more efficient, convenient and intelligent.

The invention discloses an intercommunication system and a call processing method for multiple calling terminals. The method comprises the following steps: in the process when a called terminal communicates with a calling terminal, monitoring whether call requests of other calling terminals are received; when the call requests of other calling terminals are monitored, acquiring a new communication port and transmitting a response message to the calling terminals initiating the call requests through the signaling channel of the port, and judging whether to put through the calling terminals initiating the call requests according to feedback information of the calling terminals initiating the call requests; and when the calling terminals initiating the call requests need to be put through, interrupting data transmission with the data channel of the currently communicating calling terminals, maintaining communication with the signaling channel of the currently communicating calling terminals, and communicating with the calling terminals initiating the call requests. In the invention, when a third party or more parties call in the communication process, efficient processing can be performed according to user requirements.

The invention discloses an interphone and an intercom information transmission method. The interphone comprises an interconnection communication module, a wireless radio frequency module, an inner communication interface and a processor, wherein the interconnection communication module is used for building short distance communication with an interconnection terminal; the wireless radio frequency module is used for building wireless radio frequency communication with other interphones; the processor is connected with the interconnection communication module and the wireless radio frequency module through the inner communication interface; and the processor is configured to receive first signals sent by the interconnection terminal pointing to other interphones through the interconnection communication module, process the first signals to obtain second signals and send the second signals to other interphones through the wireless radio frequency module, or, receive third signals sent by other interphones pointing to the interconnection terminal through the wireless radio frequency module, process the third signals to obtain fourth signals and send the fourth signals to the interconnection terminal through the interconnection communication module. Through the above interphone, information interaction between the interconnection terminals in the case of no network signals can be realized.

The invention discloses echo cancellation two-way voice talk back equipment which comprises an audio input module, a horn drive module, an echo elimination module, a noise-reducing and silencing module, a voice delay module and an audio output module. The echo cancellation two-way voice talk back equipment has the beneficial effects that the echo elimination module ensures bidirectional voice call at a distance of furthest 3m and eliminates echo and squeal; input audio control is completed through an automatic gain control algorithm of the echo elimination module, conditions of no remarkable fluctuation, small voice volume difference, no distortion and the like do not exist in sound in a distance of 1-3m; the noise is reduced by 10Db through the noise-reducing and silencing module, and a time domain and a frequency domain noise analyzing modules, environment noise is eliminated, and echo noise is further reduced; and voice is delayed through a voice delay module, sound of amplified by a speaker is avoided being overlapped with sound acquired by a microphone to cause incapability of accurately confirming an echo signal.

The invention discloses a method which uses an earphone device and a communication terminal to realize the voice intercom business. The earphone device comprises a voice acquisition module, a voice receiving module, an intercom protocol control module and a PTT software analytical module; wherein, the voice acquisition module is used for collecting the voice of the user; the voice receiving module is used for receiving the voice data transmitted by other voice terminals; the intercom protocol control module is used for operating the intercom protocol to realize the handshake and the intercom communication function in the intercom protocol; the PTT analytical module is used for analyzing the data received by the voice receiving module. The method which uses the earphone device and the communication terminal to realize the voice intercom business can combine with the advantages of the communication terminal and the PTT to solve the problem of unclear voice of the communication terminal in the noisy environment.

The invention discloses a building intercom system based on a high-speed wireless network. The system comprises an entrance machine used for calling a client terminal according to a user instruction and controlling the locking and unlocking of an electric lock, an SIP server which is in network connection with the entrance machine and used for network calling and communication between the entrance machine and the client terminal, and the client terminal used for communication between a resident and the entrance machine. A visitor visits through the entrance machine, the entrance machine sends calling information to the SIP server, the SIP server inquires whether APP software is installed on the client terminal and whether the APP software is connected to the network and feeds an inquiry result back to the entrance machine, the entrance machine is connected to the client terminal through the network if the APP software is online, the entrance machine is connected to the client terminal through a telephone network if the APP software is not online, the resident confirms the identity of the visitor through the client terminal and then sends opening information to the entrance machine, and the entrance machine controls the locking and unlocking of the electric lock according to the opening information. The system does not need a special network and is convenient and fast to install, convenient to use and low in assembling and maintaining cost.

The invention discloses a TDD (Time Division Duplex) transmission method for a digital interphone. In the TDD transmission method, burst frames are used as base units to be transmitted. The TDD transmission method comprises the following steps: 1, entering a sending time slot of one burst frame, and in the sensing time slot, sending voice or data to a called terminal by a host terminal and simultaneously receiving the voice or the data sent by the host terminal by the called terminal; 2, entering a protection time slot of the burst frame, and in the protection time slot, switching a sending state of the host terminal into a receiving state and simultaneously switching a receiving state of the called terminal into a sending state; 3, entering a receiving time slot of the burst frame, and in the receiving time slot, sending voice or data to the host terminal by the called terminal and simultaneously receiving the voice or the data of the called terminal by the host terminal; and 4, after completing one burst period formed by the sending time slot, the protection time slot and the receiving time slot, starting to transmit the next burst frame and returning to the step 1 until the transmission of all voice or data is completed. According to the invention, the bidirectional communication can be completed at the same moment, so that both parties are enable to more smoothly communicate with each other.

The invention relates to a detection method and a detection system for audio frequency transmission characteristics of a building intercom system. The detection method comprises the steps: a sound source portion generates specific voice signals, the specific voice signals taken as input voice signals are input into a detected access, the specific voice signals are transmitted in the detected access, and are output as detected output voice signals; the specific voice signals comprise a P.50 simulation voice signal or a P.501 human voice signal of the international telecommunication union-telecommunication standardization organization (ITU-T); the sound pressure related to the detected output voice signals are detected based on the detected output voice signals, and audio frequency characteristic parameter values are calculated in dependence on the detected sound pressure related to the detected output voice signals in order to determine audio frequency transmission characteristics of the detected access. By improving the measurement of sound sources, backboards and audio frequency distortion, the detection accuracy and the detection result precision of the audio frequency transmission characteristics of the simulation (bus-mode) building intercom system are improved, and the detection result is relatively close to the actual using effect.

The invention relates to a method and a system for remotely configuring building intercom devices. The system comprises a configuration server with a fixed IP or domain name and a plurality of building intercom devices, wherein the configuration server is used for enabling the building intercom devices to configure data synchronously with the configuration server, and a user logs in the configuration server to check and modify configuration parameters for the building intercom devices; and the configuration server sends well configured parameters to the corresponding building intercom devices to store. The method and the system provided by the invention not only can simplify the building device configuration process, but also realize unified management for parameter configuration, thereby greatly improving the convenience in building management, and having good values in use.

The invention provides an intelligent intercom system and method based on face recognition. The system comprises an entrance machine, a CA-SIM card, a user intelligent terminal and a background management terminal, wherein the entrance machine safely controls a door lock to strictly control people getting in and out, and supports near radio frequency communication, so that a mode of getting in and out via card swiping through a mobile phone is realized, and the intelligent property management level is increased; the user intelligent terminal comprises a householder end and a visitor end; under a networking condition, wireless communication can be directly carried out, so as to complete voice communication and key authorization; the visitor end supports an on-line face recognition unlocking mode; the background management terminal supports data transmitting and receiving, and arranges data generated by operation of the system. By integration of a far induction type radio frequency technology, the face recognition mode and APP, the intelligent intercom system is applied to property management of a residential area, so that the property management efficiency is improved, an intelligent high-quality service platform is supplied to a user, the safety of the residential area is effectively guaranteed, the residential area is led to intelligentization, and users in most residential areas can really own a safe and harmonic family.

The invention discloses a method and a device for performing voice talkback through a mobile terminal. In one aspect according to the invention, the method for performing voice talkback through the mobile terminal is provided, wherein the mobile terminal is provided with a touch type display screen. The method comprises the following steps: receiving appointment of a user of the mobile terminal for a receiver of the voice talkback; starting to receive a voice from the user, after confirming that the user touches any position on the display screen; and sending the received voice to the receiver. The invention also describes and protects the other realizations.

The invention relates to the field of building intercom systems and in particular to a method utilizing voice to open a door of a building intercom system top stair machine. The building intercom system and the method utilizing voice to open the door of the building intercom system top stair machine is characterized in that an indoor machine and the top stair machine in the system are respectively connected to an information management system (IMS) network through an internet protocol (IP) access network; when visitors call respondents on the top stair machine, the top stair machine launches session initiation protocol (SIP) calling on the indoor machine belonged to the respondent through the IMS network; the respondent answers on the indoor machine, and a talkback access is established between the top stair machine and the indoor machine; after the respondent confirms identity of the visitor, the respondent speaks a certain door opening control voice command; the top stair machine receives the certain door opening control voice command, recognizes through a voice recognition module, and sends a door opening control information to a door lock; and then door lock receives the door opening control information to open the gate guard. The top stair machine is provided with general building intercom devices and simultaneously provided with an SIP terminal and door opening voice command recognition functions.

The invention provides a narrowband intercom terminal multi-hop long-distance communication method and system. The method is characterized in that a plurality of network groups are constructed, wherein each network group is internally equipped with a forwarding-type narrow-band intercom terminal and a plurality of common narrow-band intercom terminals, and the network group is externally equippedwith a command center narrow-band intercom terminal; the forwarding-type narrow-band intercom terminal forwards a call from the command center narrow-band intercom terminal, forwards calls from the forwarding-type narrow-band intercom terminals in other groups and forwards calls from the common narrow-band intercom terminals in the group to the other groups; and each forwarding-type narrow-band intercom terminal forwards the call from the command center narrow-band intercom terminal, forwards the calls from the forwarding-type narrow-band intercom terminals in other groups and forwards the calls from the common narrow-band intercom terminals in the group to the other groups The method and system greatly meet user special requirements and improve user experience; and especially under an emergency special no-public-network use condition, the method and system can enable the groups to be connected and communicated mutually and help users to establish farther-distance communication services.

The invention discloses a position interaction talkback terminal based on an interphone network and an application system thereof, relates to the technical field of wireless communication, and overcomes the technical defects that the conventional interphone cannot realize position sharing and position monitoring between talkback terminals and performs positioning depending on a relay station or a base station and a background server and the like. The position interaction talkback terminal comprises a talkback communication module, and an interphone antenna connected with the talkback communication module, and is characterized by also comprising a global position system (GPS) positioning module and a geographic information system (GIS) engine system module which are connected with the talkback communication module, an electronic map database and a liquid crystal display (LCD) module which are connected with the GIS engine system module, and a GPS antenna connected with a GPS positioning module. By adopting the talkback terminal, the positions of each member in an outdoor team or an activity group can be timely shared in the team, the operating convenience can be provided, or the fun of the activity is improved. The broadcast range of a single talkback terminal is exceeded, even the talkback terminal required to be monitored can be monitored under the condition that the sum of the broadcast ranges of multiple talkback terminals is exceeded.

The invention discloses an unmanned parking lot entrance and exit video talkback system which comprises a video camera terminal, a talkback terminal, a ground sensing terminal, a barrier gate terminal, a vehicle license plate recognition terminal and a parking lot cloud platform system, wherein the talkback terminal is placed beside the barrier gate at a parking lot entrance and exit, and a call button is installed on the talkback terminal and is used for triggering a calling signal; the vehicle license plate recognition terminal is used for recognizing vehicle information, controlling a barrier gate lever on the barrier gate terminal to lift up or drop down, receiving calling information and transmitting the calling signal to the parking lot cloud platform system; the video camera terminal is used for connecting audio and video calls of a parking lot manager and a vehicle driver; the ground sensing terminal is used for sensing whether the vehicle reaches the parking lot entrance and exit; the barrier gate terminal is used for controlling whether the vehicle is allowed to enter or leave the parking lot; the parking lot cloud platform system is in network connection with the vehiclelicense plate recognition terminal and is used for remotely managing the parking lot. According to the system disclosed by the invention, abnormal conditions at the unmanned parking lot entrance andexit can be discovered in time; meanwhile, real-time voice and video calls between the vehicle owner and the parking lot manager can be realized, and problems encountered by the owner are solved in time, so that the unmanned parking lot system is perfect in functions and is convenient to popularize and use.

The invention discloses a rapid and accurate hospital calling system and a method thereof and relates to the medical instrument field. The system comprises a ward unit, a machine room unit, a nurse station server, an intercom unit, a dispensing server, several doctor office servers and a hospitalization server. For routine and common calling information, rapid and accurate calling is performed, the calling information is sent to corresponding medical care personnel, communication time is reduced and work efficiency is increased.