KR0176408B1 - Alarming apparatus in exchanging system - Google Patents

Abstract

The present invention relates to an alarm device of an electronic switchboard suitable for outputting a line processor alarm generation and alarm recovery message and informing an operator of an alarm condition in a DTS-1100A electronic switchboard. It was necessary to connect the alarm cable between the alarm source of the line processor and the alarm collection site of the main processor, but in the present invention, by implementing the alarm device without the alarm cable, the cost of introducing the alarm cable can be reduced when the system is installed. The process is reduced.

Description

Alarm device of electronic changer

Figure is a block diagram showing an embodiment of the alarm device of the electronic switching system according to the present invention.

* Explanation of symbols for main parts of the drawings

10 line processor 12 answer back test response

14,24: first and second state management unit 20: main processor

22: answer back test control unit 26: alarm control unit

30: I / O processor

The present invention relates to an alarm device of an electronic switchboard, and more particularly, to output a line processor alarm generation and alarm recovery message and to notify an operator of an alarm condition in a DTS-1100A (improved) electronic switchboard. It relates to an alarm device of a suitable electronic changer.

DTS-1100 Advanced Exchange is an international standard electronic switch that is used for local, local / Tandem and CENTREX of PSTN (Public Switched Telephone Network) and ultimately ISDN It has been developed to develop into a flexible exchange in various network types such as intelligent network (IN).

The DTS-1100 retrofit is developed using the latest technologies in the fields of computer, semiconductor, communications and software, and is suitable for all applications in terms of external size, performance, service, flexibility and adaptability to network environment.

The DTS-1100 advanced system is one of the existing and commercially available services such as voice (Local / Tandem), CENTREX, ISDN (2B + D, 30B + D), and common line signaling (CCS NO.7). It has been developed to play a major role in a comprehensive information communication network that can all be accommodated by the system.

The main design concept of the DTS-1100 retrofit is the open archi-tecture, which provides flexibility and modularity to make the system easy to expand and modify, and to easily improve the system as technology advances. ) Is adopted.

In other words, the system structure is designed to minimize the impact of technological development, and is designed in consideration of economics to provide advanced services to subscribers at a more economical price.

The main considerations in the design of the DTS-1100 advanced system are as follows.

Maximization of modularity, simplification of hardware, economical efficiency through maximization of hardware utilization efficiency, economical efficiency through maximization of software processing function, enhancement of system configuration flexibility through combination of subsystems, maximization of operation and maintenance through simplification of hardware, high performance And high reliability, software implementation and maintenance enhancements, ease of adding new features, 1.1.2 system features and specifications.

The DTS-1100 retrofit can be configured in a variety of packages.

The DTS-1100 is a system that can accommodate up to 8, 192 subscribers and 1080 channels of trunk lines, and has a distributed control concept that can handle 1,200 Erlang traffic and 150,000 Busy Hour Call Atempts (BHCA). The capacity is extended by 1500 lines in units of RACK).

The collection ratio may be 4: 1 or 8: 1.

The main specifications of the DTS-1100 Enhanced Exchanger are shown in Table 1.

Distributed Control Architecture: The DTS-1100 Advanced has a dual processor architecture with general purpose 32-bit and 16-bit microprocessors to increase modularity and improve reliability.

The control function consists of a control layer structure of two levels of the upper processor and the lower processor.

The upper processor, called the Main Processor (MP), performs higher functional tasks such as call processing, number translation, exchange control, multi-frequency signal processing, system maintenance and operation, and the peripheral processor (PP). The subprocessor, called Peripheral Processor, performs tasks that require real-time processing of the lower layers, such as path detection, analysis, and line signal processing.

Function distribution is performed by distributing various functions to the processors, and the PP and call processing processors adopt a load distribution method to facilitate addition as the system is expanded.

Operating system: DTS-1100 advanced system's operating system basically executes process management by FIFO (First In First Out), and interrupt processing and real-time for urgent processing according to the case. The Real Time Clock is operated to perform functions that require processing.

Further, interprocessor communication processing is performed, and control system redundancy processing is performed.

Programming Language: The DTS-1100 Advanced uses C language for software programming and Assemble language for hardware matching processing that requires real time.

Redundancy: To improve system reliability, the main components of the DTS-1100 retrofitting are all the control systems such as MP, PP, switches, resynchronizers and signaling devices, respectively.

In this regard, in the DTS-1100A electronic switch according to the prior art, the alarm source (power failure, functional failure, hernia failure) of the lie processor mounted in the system and the alarm collection place of the main processor are connected by an alarm cable. It monitors the state change of the hardware alarm source of the line processor and outputs the hard air alarm message of the line processor whenever the state change occurs, and continuously monitors the operation state of the processor to message and output the alarm occurrence or recovery state of the processor. .

In other words, by monitoring the line processor hardware alarm (power failure, functional failure, hernia failure) change status during system operation, when the status changes, the operating status of the line processor is checked to be the same as the change status of the hardware alarm source. Outputs a processor alarm generation or alarm recovery status message when the changes (alarm generation or alarm recovery) are equal.

However, this prior art requires connecting an alarm cable between the alarm source of the line processor and the alarm collection site of the main processor at system installation.

The present invention has been made to solve the drawbacks of the prior art, and when the system is installed, alarm generation and recovery of the line processor without connecting the alarm cable connected between the alarm source of the line processor and the alarm collection site of the main processor It is an object of the present invention to provide an alarm device for an electronic switchboard that can output a message, thereby reducing the process of installing the system.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention for achieving the above object is as follows.

Referring to the accompanying drawings, the drawing is a block diagram showing an embodiment of the alarm device of the electronic switching system according to the present invention, in the DTS-1100A electronic switching system, the line processor 10 and the main processor 20 ), And an input / output processor 30.

The present invention made in this way is described in detail as follows.

First, the answer back test response unit 12 in the line processor 10 may perform redundancy (active or standby with respect to each other) according to the answer back test function request from the answer back test control unit 22. The hardware and software operating state information is applied to the answer back test control unit 22, and the first state manager 14 manages the operating state of the line processor 10, and accordingly, the operating state of the line processor 10. Outputs

Next, the answer back test control unit 22 in the main processor 20 transmits a signal requesting the answer back test function to the answer back test response unit 12 at a predetermined interval, thereby providing redundancy from the answer back test response unit 12. Receives the hardware and software operation state information and outputs the information of the answer back test response unit 12 in which the state change has occurred compared to the previous state, and the second state management unit 24 receives the information from the answer back test control unit 22. An output and an output from the first state manager 14 are received and stored and output. The alarm controller 26 receives an output from the second state manager 24 so that the alarm state of the line processor 10 is different from the previous state. If different, configure and output the alarm message of the lie processor 10, and check the redundant line processor 10 alarm again by checking whether all of the redundant line processors 10 are abnormal or all are normal. And it outputs the message.

In addition, the input / output processor 30 inputs and outputs an alarm message of the alarm controller 26 so that an operator knows it.

Here, the constant interval of the answer back test control unit 22 is an interval of 2 seconds, and the answer back test control unit 22 continuously transmits a signal requesting the answer back test function to the answer back test response unit 12 three times in succession. When the answer back test response unit 12 does not respond, the second state manager 24 reports that the duplication of the line processor 10 is all abnormally operated to alert the line processor 10.

The definition used here is briefly described as follows.

Integrated Services Digital Network (ISDN): ISDN is a digital communication network that integrates and provides various services, and ISDN is an integrated service digital network that enables to provide not only voice but also image and data services by developing voice communication. It is a communication network.

In this case, the services to be integrated are mainly narrowband services such as telephony, facsimile, teletex, telemetry, telewriting, and data terminal.

Typical features of ISDN include the fact that the subscriber and the communication network are connected through one circuit so that various services can be comprehensively provided, and the connection between the subscriber and the communication network is digital.

In other words, the subscriber network is digitalized and various services are integrated thereon.

In ISDN, there is an advantage that a variety of voice and non-voice services can be integrated and processed, which is possible because all information processing is performed by digital method.

Therefore, in ISDN, circuit switching and packet switching can be provided simultaneously, and transmission is digital.

ISDN provides a common access point for existing circuit-switched and packet-switched networks, and has the advantage of allowing various information resources in the network to be shared.

In other words, it is possible to have various databases in a communication network and use them jointly with all subscribers and service providers.

In addition, ISDN can provide various communication processing and information processing functions, and has advantages such as facilitating network operation and management.

As described above, the present invention can reduce the cost of introducing the alarm cable when installing the system by implementing the alarm device without the alarm cable, and the process of installing the system can be reduced.

Claims (3)

In the DTS-1100A electronic switch system including a line processor (10), a main processor (20), and an input / output processor (30), the line processor (10) is an answer from the answer back test control unit (22). The operating state of the line processor 10 and the answer back test response unit 12 for applying different hardware and software operating state information to the answer back test control unit 22 for redundancy according to a back test function request are managed. The first state manager 14 outputs the operation state of the line processor 10 according to the above, and the main processor 20 is an answer back test at a predetermined interval to the answer back test response unit 12. Sends a signal requesting a function and receives hardware and software operating status information according to redundancy from the answer back test response unit 12 and compares the state with a previous state. The answer back test control unit 22 outputting information of the angry back test response unit 12 and the output from the answer back test control unit 22 and the output from the first state management unit 14 are received. The second state manager 24 stores and outputs the output, and when the output state is received from the second state manager 24, the alarm message of the line processor 10 is configured to be different from the previous state. And an alarm controller 26 for outputting the redundant line processor 10 and checking whether all of the redundant line processors 10 are abnormal or all normal, and outputting a redundant line processor 10 alarm message. Alarm device of the electronic switchboard, characterized in that the operator to know the input and output by processing the alarm message of the alarm controller (26). The alarm device of the electronic switchboard according to claim 1, wherein a predetermined interval of the answer back test controller (22) is an interval of 2 seconds. The answer back test response unit 12 responds to the answer back test response unit 12 even if the answer back test response unit 12 continuously transmits a signal requesting the answer back test function three times. Otherwise, the second state manager 24 reports that the duplication of the line processor 10 is in abnormal operation to alert the line processor 10.