CN108282590B

CN108282590B - Multi-path dialing control system

Info

Publication number: CN108282590B
Application number: CN201711399173.5A
Authority: CN
Inventors: 谭全福; 康荣保; 张睿; 钟宏; 魏兴雲; 邱涛
Original assignee: CETC 30 Research Institute
Current assignee: CETC 30 Research Institute
Priority date: 2017-12-22
Filing date: 2017-12-22
Publication date: 2020-04-03
Anticipated expiration: 2037-12-22
Also published as: CN108282590A

Abstract

The invention discloses a multi-path dialing control system and a control method. The dialing processing card, the user resource card and the relay resource card are connected in sequence, and the data exchange card is connected with the dialing processing card and the main control processing card. The main control processing card and the CPCI case form a basic functional layer, the data exchange card and a CPCI case backboard interface form a multi-service exchange layer, and the relay resource card, the user resource card and the dialing processing card form a service processing layer. The control method comprises a communication management module, a self-checking function module, a parameter configuration function module and a message processing module. Compared with the prior art, the invention has the following positive effects: the multi-path dialing control system and the control method provided by the invention are beneficial to the integration and unified management of the dialing function of the dialing access terminal.

Description

Multi-path dialing control system

Technical Field

The invention relates to a multi-path dialing control system and a control method.

Background

The communication between the terminal and the background service processing center has wide application in actual life. A typical service processing system mainly includes three parts, namely a terminal device group, a communication network and a service processing center. The terminal communication access mode mainly includes three modes of dial-up access through a PSTN telephone line, IP access and wireless access (GPRS/3G, etc.), as shown in fig. 1.

Although the development of mobile communication networks and ethernet networks has gradually diversified communication modes, the telephone dialing type terminal still occupies an important position as a traditional communication access mode, and is widely applied to voice exchange, lightweight data exchange communication and encryption communication. The terminal uses telephone dialing to access to the network controller device through PSTN network, converts the dialing network data into IP network data, and finally accesses to the background service system of the service processing center to complete service data exchange.

The traditional terminal dialing access is established based on a telephone network, terminal equipment of each node calls an authorization center through a built-in Modem dialing, the authorization center receives terminal data through a plurality of relay lines, the data of the relay lines are finally transmitted to a network access controller for processing, the data are converted into a data format acceptable by a front-end processor of a service processing center according to a communication protocol, and finally the data are transmitted to a service background system for processing.

Telephone dialing type terminal communication is an important data exchange mode, a terminal is accessed to a network access controller of a background mechanism through telephone line dialing, and then performs terminal service interaction with a service processing system, a typical processing process is shown as fig. 2, and the terminal comprises the following steps:

(1) a user initiates a service request by using a terminal;

(2) the terminal encapsulates the service information used by the user, generates a check code for the data packet, and sends the generated request datagram to the service processing center through the communication network;

(3) after receiving the data packet, the service processing center opens, decrypts and restores the data packet, and performs responsive service processing;

(4) the service processing center constructs a service response datagram packet and sends the service response datagram packet to the terminal;

(5) and after receiving the data packet, the terminal equipment carries out unpacking, processing, printing and the like to complete the whole business process.

The access of the point-to-point terminal is characterized in that the point-to-point terminal is connected to a background system for communication through a telephone network by means of a built-in Modem, and the access of the point-to-point terminal has the advantages of low cost, convenience in use and the like. But also has a plurality of defects, such as poor reliability, difficult network technology upgrade, and the like.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a multi-path dialing control system and a control method, wherein the dialing function is controlled in a centralized manner, the similar cluster technology is adopted for management, the multi-path simultaneous initiation of communication connection to an authorization center can be carried out, and the multi-path simultaneous initiation is connected to a network access controller and finally connected to a background service system. The dial-up access of a plurality of terminals can be converged into one system device, and the system device is provided with a plurality of channels to be connected to a target network center, so that the network dynamic balance is carried out, the network resources are reasonably utilized, and the transaction speed is accelerated. The control software on the upper layer terminal layer can carry out unified management on services, and the control software and the bottom layer multi-path dialing control system are in loosely coupled connection, so that the software is easier to update and maintain. A relatively high gain in performance, reliability, flexibility is achieved at a lower cost.

The technical scheme adopted by the invention for solving the technical problems is as follows: a multi-channel dialing control system comprises a main control processing card, a data exchange card, a relay resource card, a user resource card and a dialing processing card. The dialing processing card, the user resource card and the relay resource card are connected in sequence, and the data exchange card is connected with the dialing processing card and the main control processing card. The main control processing card and the CPCI case form a basic functional layer, the data exchange card and a CPCI case backboard interface form a multi-service exchange layer, and the relay resource card, the user resource card and the dialing processing card form a service processing layer.

The invention also provides a multi-path dialing control method, which comprises a communication management module, a self-checking function module, a parameter configuration function module and a message processing module. Wherein: the communication management module completes the management control of the communication link between the upper layer software and the bottom layer modem link and completes the processing of the protocol; the self-checking functional module is used for detecting the working state of the Modem; the parameter configuration function module completes configuration of serial port communication parameters and a Modem working mode on a link; the message processing module completes dialing with a target, link layer link establishment, sending of a message load data packet and serial port monitoring.

Compared with the prior art, the invention has the following positive effects: the multi-path dialing control system and the control method provided by the invention are beneficial to the integration and unified management of the dialing function of the dialing access terminal. The main beneficial effects and advantages are as follows:

1. facilitating maintenance and updating

The invention extracts the dialing function of the equipment and integrates the dialing function into the multi-path dialing control system, and adopts multi-path dialing control software to carry out centralized management, so that the upper management control software is convenient to maintain, and the flexibility of software updating is improved. Meanwhile, the centralized management of hardware is beneficial to the later-stage centralized maintenance of the equipment.

2. Pressure testing

The multi-path dialing control system is beneficial to carrying out pressure test on a target which needs to be dialed. Under the condition that a multi-path parallel communication request needs to be initiated, the function and the performance of a target can be detected through the multi-path dialing control system, and all indexes of an online system are guaranteed.

3. Wide application range

The multi-path dialing control system can be widely applied to service scenes needing to adopt dialing for communication.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a terminal communication access topology intention;

FIG. 2 is a diagram illustrating an exemplary terminal data communication process;

FIG. 3 is a general block diagram of the hardware of the multiple dialing control system;

FIG. 4 is a hardware architecture diagram;

FIG. 5 is a software functional framework diagram of a multiple dialing control system;

fig. 6 is a flow chart of the multiple dialing control system software.

Detailed Description

As shown in fig. 3, the cabinet of the multiple dial control system device employs a 19-inch CPCI standard cabinet. The equipment can be divided into a main control processing part, a PSTN relay processing part and a dialing processing part from the function, and a slave board card module consists of five kinds of board cards of a main control processing card, a data exchange card, a relay resource card, a user resource card and a dialing processing card.

As shown in fig. 4, the entire multiple dialing control system adopts a hierarchical architecture, which can be divided into three layers from the hardware, namely, a basic function layer, a multiple service switching layer and a service processing layer. The basic function layer comprises a case frame (comprising a power supply module, a case cooling fan and the like) and a main control processing card, which are basic components of the whole device. The multi-service switching layer comprises a chassis back panel and a data switching card, and data switching of 3 protocols (PICMG 2.16, H.110 and PCI) is provided through the back panel. The service processing layer comprises a relay resource card, a user resource card and a dialing processing card which are respectively responsible for processing PSTN relay and dialing processing.

According to the hardware architecture, the functions of the parts are as follows:

(1) business processing layer

The service processing layer is composed of three parts of a relay resource card, a user resource card and a dialing processing card, and mainly completes the related processing of PSTN service and dialing processing service. The functions of the three boards are respectively as follows:

1) the relay resource card has an independent 2M/PCM digital relay interface and relay channel processing capacity, can process a No. seven signaling (SS7) link protocol, process user loop signaling, caller identification and external call control, and is communicated with the analog voice card through an H.110 bus;

2) the user resource card is provided with an independent analog voice channel, can realize the functions of off-hook detection, calling identification and voice interactive response, and is communicated with the relay resource card through an H.110 bus;

3) the dialing processing card is provided with an independent synchronous Modem and can finish the dialing access of the multi-path synchronous Modem in parallel.

(2) Multi-service switching layer

The multi-service exchange layer is composed of a CPCI chassis back plate and a data exchange card and mainly completes various data exchanges among various functional board cards in the equipment. The functions of the two boards are as follows:

1) the CPCI case back board provides a CPCI connection bus, an H.110 through bus and a PICMG2.16 connection bus;

2) and the data exchange card provides an exchange interface conforming to PICMG2.16, and is matched with a PICMG2.16 connection bus to complete data exchange.

(3) Base functional layer

The basic function layer is composed of a CPCI case and a main control processing card and mainly completes a plurality of basic functions and main control functions required by equipment work. The specific functions are as follows:

1) the CPCI chassis provides mechanical mounting positions of all the board cards, provides air-cooled heat dissipation and provides direct-current working voltage required by the work of all the board cards;

2) and the master control processing card is responsible for controlling the work of each board card in the equipment, inquiring the state of each board card, analyzing the internal communication instruction and finishing the related message processing instruction.

As shown in fig. 5, the multi-path dialing control system software mainly comprises four parts, namely a communication management module, a self-checking function module, a parameter configuration function module and a message processing module.

The communication management module mainly completes the management control of the communication link between the communication management module and upper-layer software and between the communication management module and a bottom-layer modem link, and also completes the processing function of a protocol.

The self-checking function module completes the detection of the working state of the Modem and lays a foundation for further message processing.

The parameter configuration module mainly completes the configuration functions of serial port communication parameters and Modem working modes on the link.

The message processing module mainly completes the functions of dialing with a target, link layer link establishment, sending of a message load data packet, serial port monitoring and the like.

As shown in fig. 6, when the multi-path dialing control system software receives task information issued by upper-layer software, a communication management module in the software performs type analysis on the task information, performs self-checking, parameter configuration and message processing functions according to different task message types, and finally feeds back an execution result to the upper-layer software.

Claims

1. A multiple dialing control system, comprising: including master control processing card, data exchange card, relay resource card, user resource card and dial-up processing card, user resource card and relay resource card connect gradually, the data exchange card is connected with dial-up processing card and master control processing card, master control processing card constitutes basic functional layer with CPCI machine case, data exchange card and CPCI machine case backplate interface constitute many business exchange layer, relay resource card, user resource card and dial-up processing card constitute business processing layer, wherein:

the relay resource card has an independent 2M/PCM digital relay interface and relay channel processing capacity, is used for processing a No. seven signaling link protocol, processing user loop signaling, calling identification and external calling control, and is communicated with the user resource card through an H.110 bus;

the user resource card is provided with an independent analog voice channel and is used for realizing the functions of hook-and-loop detection, calling identification and voice interactive response and is communicated with the relay resource card through an H.110 bus;

the dial processing card is provided with an independent synchronous Modem and is used for completing multi-path synchronous Modem dial access in parallel.

2. A multiple dialing control system as claimed in claim 1, wherein: the basic function layer completes basic functions and main control functions required by equipment work, wherein: the CPCI chassis provides mechanical mounting positions of all board cards, provides air-cooled heat dissipation and provides direct-current working voltage required by the work of all the board cards; the master control processing card is responsible for controlling the work of each board card in the equipment, inquiring the state of each board card, analyzing the internal communication instruction and finishing the related message processing instruction.

3. A multiple dialing control system as claimed in claim 2, wherein: the multi-service switching layer is responsible for various data switching among various functional board cards, wherein: the CPCI case back plate provides a CPCI connection bus, an H.110 through bus and a PICMG2.16 connection bus; the data exchange card provides an exchange interface conforming to PICMG2.16 and is matched with a PICMG2.16 connection bus to complete data exchange.