CN109379504B - Ringing system of car networking - Google Patents
Ringing system of car networking Download PDFInfo
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- CN109379504B CN109379504B CN201811595156.3A CN201811595156A CN109379504B CN 109379504 B CN109379504 B CN 109379504B CN 201811595156 A CN201811595156 A CN 201811595156A CN 109379504 B CN109379504 B CN 109379504B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
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Abstract
本发明公开了一种车联网的振铃系统，包括：车载端、移动SIP服务器、本地asterisk模块、用户界面服务器、数据库、运行模块、API权限控制模块和消息队列模块，所述车载端和所述移动SIP服务器通过PBX连接，所述移动SIP服务器和所述本地asterisk模块通过SIP协议连接，所述用户界面服务器和所述数据库通过数据库协议连接，所述运行模块和所述asterisk通过SIP连接，其中，所述本地asterisk向所述移动SIP服务器传达所述SIP请求。本发明通过引入SIP线路接入替换E1线路,遵循SIP通信协议，使用网络实现激活车机。
The invention discloses a car networking ringing system, comprising: a vehicle terminal, a mobile SIP server, a local asterisk module, a user interface server, a database, an operation module, an API authority control module and a message queue module. The mobile SIP server is connected through the PBX, the mobile SIP server and the local asterisk module are connected through the SIP protocol, the user interface server and the database are connected through the database protocol, the operation module and the asterisk are connected through SIP, Wherein, the local asterisk communicates the SIP request to the mobile SIP server. The invention replaces the E1 line by introducing the SIP line to access, follows the SIP communication protocol, and uses the network to realize the activation of the vehicle.
Description
Technical Field
The invention relates to a ringing system, in particular to a ringing system of an internet of vehicles.
Background
The conventional car networking uses E1 line for ringing and car machine wake-up, fig. 1 shows the architecture diagram of the ringing system of the car networking in the prior art, the ringing system of the conventional car networking is provided for the car networking service system ringing wake-up terminal to use through the Asterisk voice platform and E1 voice line, the Asterisk is an open source software VoIP PBX system, which is a pure software implementation running in Linux environment. Asterisk is a very fully functional application that provides many telecommunications functions. One time division multiplexing frame (the length T of 125us) of E1 is divided into 32 equal time slots, which are numbered CH0 to CH 31. Wherein the time slot CH0 is used for frame synchronization, the time slot CH16 is used for signaling, and 30 time slots of the rest of CH 1-CH 15 and CH 17-CH 31 are used for 30 speech channels. Each slot carries 8 bits and therefore shares 256 bits. 8000 frames per second are transmitted, so the data rate of the PCM sub-group E1 is 2.048 Mbit/s. 1. One E1 is a 2.048M link, encoded with PCM. 2. The frame length of one E1 is 256 bits, which is divided into 32 time slots, and one time slot is 8 bits. 3. 8000E 1 frames per second are passed through the interface, i.e., 8k × 256bit 2048kbps 2 Mbps. 4. Each time slot occupies 8 bits in the E1 frame, 8 × 8K is 64K, i.e. 32 slots of 64K are included in one E1. The use of the E1 line has the following disadvantages: 1. the E1 voice line introduces difficulties; 2. an E1 voice line can only support 30 calls at the same time; 3. ringing state acquisition is difficult; 4. the telecom operator limits access for security reasons. These disadvantages will become system bottlenecks as the number of internet of vehicles users increases.
In addition, because the particularity of using ringing in the car networking, the car machine immediately hangs up after receiving the ringing, and then can upload and report information such as current car machine position state to the car networking platform, and the car networking platform can confirm whether the ringing is successful. The action of "hanging up" is different in different regions, and message prompts given by different telecom operators are different. The state codes given by the network protocol are also very different, many returned state codes do not follow the system protocol, and the vehicle networking system forms a circuit black box at the telecom operator and the vehicle end and cannot reach a closed loop. Meanwhile, the client and the user hope to know the current ringing specific situation at that time accurately.
Based on the above situation, it is necessary to provide a new ringing system for car networking, which can solve the above performance and accuracy problems.
Disclosure of Invention
The invention aims to solve the technical problems and provides a ringing system of an internet of vehicles, which directly calls through network flow and has concurrency limited by network bandwidth.
The invention is realized by the following technical scheme:
a networked ringing system comprising: the system comprises a vehicle-mounted end, a mobile SIP server, a local asterisk module, a user interface server, a database, an operation module, an API (application program interface) authority control module and a message queue module, wherein the vehicle-mounted end is connected with the mobile SIP server through a PBX (private branch exchange), the mobile SIP server is connected with the local asterisk module through an SIP (session initiation protocol), the user interface server is connected with the database through a database protocol, the operation module is connected with the local asterisk module through the SIP protocol, and the message queue module is connected with the mobile SIP server through the PBX,
the user interface server checks user authority to obtain a call request and transmits the call request to the message queue module, the operation module obtains the call request with high priority from the message queue module, the operation module sends an SIP request to the local asterisk module, the local asterisk module transmits the SIP request to the mobile SIP server, the mobile SIP server and the vehicle-mounted end interact, the vehicle-mounted end feeds back an interaction result to the mobile SIP server, the local asterisk module transmits the interaction result to the operation module, and the operation module inserts the interaction result into the database and feeds back the interaction result to the user interface server.
Preferably, the message queue module is connected to the operation module and the user interface server respectively, the message queue module is connected to the user interface server through an AMQP protocol, the message queue module sends a subscription queue message to the operation module, and the operation module feeds back an AMQP result to the message queue module.
Preferably, the API right control module is connected to the message queue module, the API right control module is configured to send an AMQP warehousing queue message to the message queue module, and the message queue module feeds back a client ex-warehouse monitoring message to the API right control module.
Preferably, the ringing system of the internet of vehicles further comprises a third-party application module, the third-party application module is connected with the API permission control module, and the third-party application module is connected with the API permission control module through an HTTP protocol.
Preferably, the ringing system of the internet of vehicles further comprises a voice conversion module, and the voice conversion module is used for converting voice into text, so that the ringing system of the internet of vehicles can quickly acquire a call state.
Preferably, the SIP request implements a ringing call by embedding a telephone number in a URL.
Preferably, the ringing system of the internet of vehicles further comprises a voice recognition module, the voice recognition module is connected with the database, and the voice recognition module is used for acquiring an interaction result in the database.
Preferably, the ringing system of the internet of vehicles further comprises a file storage module, the file storage module is connected with the voice recognition module, and the file storage module is used for storing voice data generated in the voice recognition module.
The invention has the following beneficial effects:
the ringing system of the Internet of vehicles provided by the invention replaces an E1 line by introducing an SIP line access, follows an SIP communication protocol, and uses a network to realize connection with a vehicle machine; secondly, the server does not need special E1 hardware equipment, realizes smooth upgrade of technology, does not need special hardware facilities, and only needs a common PC machine, thereby saving cost; thirdly, the traditional 30-path limitation of the E1 line is the system limitation given by the telecom operator, and after the SIP line is used, the concurrency capability of the line is limited only by the line bandwidth, the call is directly made through the network traffic, the concurrency capability is limited only by the network bandwidth, and the line can be expanded by expanding the network bandwidth; moreover, the problem of redundancy across operators and regions can be solved by accessing different operators through lines; moreover, the system analyzes and displays the call state of each stage to be presented to the user, so that the reason of the call fault can be conveniently analyzed; furthermore, the system line state can be judged in real time, and the vehicle networking system is smoothly expanded and conveniently used; finally, due to the fact that the background is provided with multiple authorities, multiple role managers can learn about the current usage amount, the usage condition, the call success rate and the like in a white box state.
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FIG. 1 is an architecture diagram of a prior art ringing system for a vehicle networking;
fig. 2 is a schematic block diagram of a ringing system of a car networking in an embodiment of the present invention.
Detailed Description
According to the ringing system of the Internet of vehicles, disclosed by the embodiment of the invention, the SIP line is introduced to replace an E1 line, the SIP communication protocol is followed, and the vehicle is connected by using a network.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring now to fig. 2, fig. 2 discloses a ringing system for a car networking, comprising: a vehicle-mounted terminal 15, a mobile SIP server 16, a local asterisk module 17, a user interface server 18, a database 19, an operation module 14, an API authority control module 13 and a message queue module 13, wherein the vehicle-mounted terminal 15 and the mobile SIP server 16 are connected through a PBX, the mobile SIP server 16 and the local asterisk module 17 are connected through an SIP protocol, the user interface server 18 and the database 19 are connected through a database protocol, the operation module 14 and the local asterisk module 17 are connected through an SIP protocol, wherein,
the user interface server 18 checks user authority to obtain a call request and transmits the call request to the message queue module 13, the operation module 14 obtains a call request with high priority from the message queue module 13, the operation module 14 sends an SIP request to the local asterisk module 17, the local asterisk module 17 transmits the SIP request to the mobile SIP server 16, the mobile SIP server 16 interacts with the vehicle-mounted terminal 15, the vehicle-mounted terminal 15 feeds back an interaction result to the mobile SIP server 16, the local asterisk module 17 transmits the interaction result to the operation module 14, and the operation module 14 inserts the interaction result into the database 19 and feeds back the interaction result to the user interface server 18.
Asterisk is a piece of free software, open source software, that implements PBX (Private Branch Exchange) functionality. The Asterisk provides complete PBX function, can be connected with various different telephone terminals, including ordinary telephone sets, IP telephone sets, soft telephones and the like, and supports various mainstream IP telephone protocols and system interfaces.
SIP (Session Initiation Protocol) is a multimedia communication Protocol established by IETF (Internet Engineering Task Force). It is a text-based application-layer control protocol for creating, modifying and releasing sessions of one or more participants. The present invention is widely applied to CS (Circuit Switched), NGN (Next Generation Network) and IMS (IP Multimedia Subsystem) networks, and can support and apply to Multimedia services such as voice, video, data, and the like, and also can apply to feature services such as Presence, Instant Message, and the like. It can be said that there is an existence of the SIP protocol where there is an IP network. SIP is similar to HTTP. SIP can reduce the development time of applications, particularly advanced applications.
SIP interoperates with the resource reservation protocol (RSVP) responsible for voice quality. It also cooperates with several other protocols, including multiple protocols such as Lightweight Directory Access Protocol (LDAP) which is responsible for location, remote authentication dial-in user service (RADIUS) which is responsible for authentication, and RTP which is responsible for real-time transport.
An important feature of SIP is that it does not define the type of session to be established, but only how the session should be managed. With this flexibility, SIP can be used in a wide variety of applications and services, including interactive gaming, music and video on demand, and voice, video and Web conferencing. SIP messages are text-based and therefore easy to read and debug. Programming of new services is simpler and more intuitive for designers. SIP reuses MIME-type descriptions like email clients so that session-related applications can be launched automatically. SIP reuses several existing, more sophisticated Internet services and protocols, such as DNS, RTP, RSVP, etc. No new services have to be introduced to support the SIP infrastructure since many parts of the infrastructure are already in place or readily available.
SIP is independent of the transport layer. Thus, the underlying transport may be IP using ATM. SIP uses User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) to flexibly connect users independent of the underlying infrastructure. SIP supports multi-device feature adjustment and negotiation. If a service or session initiates video and voice, voice may still be transmitted to devices that do not support video, and other device functions, such as a one-way video streaming function, may also be used.
SIP sessions use up to four main components: SIP user agents, SIP registrar servers, SIP proxy servers, and SIP redirect servers. These systems complete SIP sessions by transmitting messages that include the SDP protocol (used to define the content and characteristics of the messages). The various SIP components and their role in this process are described generally below.
SIP User Agents (UAs) are end-user devices such as mobile phones, multimedia handsets, PCs, PDAs, etc. that are used to create and manage SIP sessions. The user agent client sends out a message. The user agent server responds to the message.
A SIP registrar server is a database that contains the locations of all user agents in the domain. In SIP communications, these servers retrieve the IP address and other relevant information of the other party and send it to the SIP proxy server.
The SIP proxy server receives the session request of the SIP UA and inquires the SIP registration server to obtain the address information of the receiver UA. It then forwards the session invite message directly to the receiving UA (if it is in the same domain) or to a proxy server (if the UA is in another domain).
The SIP redirect server allows the SIP proxy server to direct SIP session invite information to foreign domains. The SIP redirect server may be on the same hardware as the SIP registrar server and the SIP proxy server.
The ringing system of the internet of vehicles further comprises a message queue module 13, the message queue module 13 is respectively connected with the operation module 14 and the user interface server 18, the message queue module 13 is connected with the user interface server 18 through an AMQP protocol, the message queue module 18 sends a subscription queue message to the operation module 14, and the operation module 14 feeds back an AMQP result to the message queue module 13.
AMQP (Advanced Message Queuing Protocol) is an Advanced Message Queuing Protocol application layer standard Advanced Message Queuing Protocol for providing unified Message service, is an open standard of application layer Protocol, and is designed for Message-oriented middleware
The ringing system of the internet of vehicles further comprises an API (application programming interface) authority control module 12, wherein the API authority control module 12 is connected with the message queue module 13, the API authority control module 12 is used for sending AMQP (advanced metering parameter) warehousing queue messages to the message queue module 13, and the message queue module 13 feeds back client ex-warehouse monitoring messages to the API authority control module 12.
The ringing system of the internet of vehicles further comprises a third-party application module 11, the third-party application module 11 is connected with the API authority control module 12, and the third-party application module 11 is connected with the API authority control module 12 through an HTTP protocol.
HTTP (HyperText Transfer Protocol) is the most widely used network Protocol on the internet. All WWW files must comply with this standard.
The ringing system of the Internet of vehicles also comprises a voice conversion module, wherein the voice conversion module is used for converting voice into characters, so that the ringing system of the Internet of vehicles can quickly acquire a calling state.
The SIP request implements a ringing call by embedding a telephone number in the URL.
The ringing system of the internet of vehicles further comprises a voice recognition module 20, the voice recognition module 20 is connected with the database 19, and the voice recognition module 20 is used for acquiring the interaction result in the database 19.
The ringing system of the internet of vehicles further comprises a file storage module 21, the file storage module 21 is connected with the voice recognition module 20, and the file storage module 20 is used for storing voice data generated in the voice recognition module 20.
The invention has the following beneficial effects:
the ringing system of the Internet of vehicles, disclosed by the invention, replaces an E1 line by introducing an SIP line access, follows an SIP communication protocol, and uses a network to realize connection with a vehicle machine; secondly, the server does not need special E1 hardware equipment, realizes smooth upgrade of technology, does not need special hardware facilities, and only needs a common PC machine, thereby saving cost; thirdly, the traditional 30-path limitation of the E1 line is the system limitation given by the telecom operator, and after the SIP line is used, the concurrency capability of the line is limited only by the line bandwidth, the call is directly made through the network traffic, the concurrency capability is limited only by the network bandwidth, and the line can be expanded by expanding the network bandwidth; moreover, the problem of redundancy across operators and regions can be solved by accessing different operators through lines; moreover, the system analyzes and displays the call state of each stage to be presented to the user, so that the reason of the call fault can be conveniently analyzed; furthermore, the system line state can be judged in real time, and the vehicle networking system is smoothly expanded and conveniently used; finally, due to the fact that the background is provided with multiple authorities, multiple role managers can learn about the current usage amount, the usage condition, the call success rate and the like in a white box state.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
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Denomination of invention: A Ringing System for Car Networking Effective date of registration: 20231016 Granted publication date: 20210112 Pledgee: Industrial Bank Co.,Ltd. Shanghai West sub branch Pledgor: TAIMA INFORMATION NETWORK TECHNOLOGY Co.,Ltd. Registration number: Y2023310000647 |
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