KR100217231B1 - Satellite communication management system for processing command according to status of the system - Google Patents

Abstract

The present invention relates to a satellite communication network management system having a command processing function for each class according to a system situation that divides several classes according to the importance of the system control according to its importance and limits the execution according to the load state of the system. Network with operator's terminal for inputting data necessary for control and management of the whole system including base station and monitoring network operation status through control means for controlling system status of overall satellite communication network through data communication with processor In a management system; Input instruction counting means for counting the number of instructions currently being processed according to the control of the control means, and load information storage means for each grade for storing and setting load class information according to the number of instructions being processed to determine the load state, for each grade Load status determination means for determining the load status of the system by classifying the predetermined number of classes according to the number of processing instructions counted by the input instruction counting means based on the data stored in the load information storing means, and each system load class And command priority storage means for storing instructions that can be processed according to the data, wherein the control means is inputted through the operator terminal based on the system load state determined by the load state determination means. Is set in the corresponding load class area of the command priority storage. Based on whether or not to determine whether the execution is characterized in that the processing.

Description

Satellite communication network management system with instruction processing function by grade according to system situation

The present invention relates to a control system for satellite communication network management, and in particular, the command processing according to the system situation to divide the number of commands related to the system control according to its importance and limit the execution according to the load condition of the system. The present invention relates to a satellite communication network management system with functions.

System control in the satellite communication system mainly used for remote communication is to be executed by the central control station that manages the overall network operation state, Figure 1 schematically shows the configuration of the central control station of the DAMA-SCPC satellite communication system The block diagram shown in FIG.

In FIG. 1, reference numeral 10 denotes an antenna for transmitting and receiving an uplink signal transmitted to a satellite (not shown) and a downlink signal transmitted from a satellite, and 20 denotes an antenna 10. RF transmission / reception for converting the downlink signal of the ultra-high frequency band received by the to an intermediate frequency (IF) signal and converting and outputting the intermediate frequency (IF) signal of the 70 MHz band to the RF signal of the ultra-high frequency band in reverse for the uplink signal. However, the RF transceiver 20 is an Orthogonal Mode Transducer (OMT) 21 that separates and inputs and outputs up and down link signals transmitted and received through the antenna 10 by using a polarization property of frequency. ) And the 12.25 to 12.75 GHz downlink frequency signal separated and input by the orthogonal mode converter 21 to a predetermined level, and the amplified signal is for example an intermediate frequency (IF) of 70 MHz. RF receiver 22 for converting the signal and RF transmitter for converting the 70 MHz intermediate frequency (IF) signal to be transmitted to the satellite into 14.0 to 14.5 GHz microwave and amplifying the signal to a predetermined level to generate an uplink frequency signal. It consists of (23).

Further, reference numeral 30 denotes an IF processing stage for processing a transmission / reception intermediate frequency (IF) signal in a 70 MHz band, and the IF processing stage 30 receives an intermediate frequency (IF) signal applied from the RF receiver 22. Intermediate frequency combination / distribution unit for separating and outputting a plurality of intermediate frequency signals and outputting a combination of intermediate frequency signals applied from a single channel per carrier (SCP) channel unit (SCU) 33 to be described later. C / D) 31 and the first SCPC channel unit for demodulating, decoding and outputting the IF signal applied from the intermediate frequency combination / distributor 31 and the message output from the network controller 40 to be described later. It consists of a second SCPC channel unit 33 which is encoded, modulated and output.

Further, reference numeral 40 performs a polling function for checking the state of each base station based on a response message transmitted from the base station after transmitting a control message to each base station through the SCPC channel unit 33, and a specific base station If there is a call request from the base station, the base station determines whether the other base station is in a communication state based on the information obtained in the polling process, and if the communication state is available, allocates available traffic channels of the satellite to both base stations. This is a network control unit that performs system control such as allowing direct communication with each other.

On the other hand, the network controller 40 extracts packet information from a message applied from the processor 41 and the SCPC channel unit 32, which controls the entire system and in particular, the call processing between the base stations. In addition, a service channel controller (SCC) 42 for generating and outputting a message of a time division multiplex (TDM) stream to the SCPC channel unit 33 and a service with the processor 41. Dual port RAM 43 for data transmission and reception between the channel controller 42, the program storage unit 44 in which the operation program of the processor 41 is stored, and the status information of each base station obtained by the above-described polling operation The base station information storage unit 45 is stored, and the channel information storage unit 46 stores the usage state of the communication channel.

In addition, reference numeral 50 denotes a network management system that enables the satellite communication network operation manager to monitor the overall network operating status and to control the entire satellite system including the base station as necessary.

That is, in the conventional satellite system having the above-described configuration, when there is a call setup request from any subscriber base station (not shown), the base station information obtained by polling by the processor 41 inside the network control unit 40 is polled. And allocating a channel having a requested bandwidth among currently available communication channels based on the channel state information recorded in the channel information storage unit 46, and a network operation manager through the network management system 50. While communicating with the processor 41 of the control unit 40, it is possible to control the overall system including the base station by monitoring the overall operating status of the system or by inputting a predetermined command as necessary.

On the other hand, among the operator commands input through the network management system 50, after being transmitted to the base station and processed, there is a command that takes a relatively long response time because the processing result is received through the antenna 10, These instructions not only add to the load that the system has to deal with, but can also cause serious consequences, such as severe system outages.

Therefore, the neglecting to process a command continuously input through the operator terminal while disregarding the load state of the system will be excessive in the system itself, and appropriate countermeasures or preventive measures will be required.

The present invention was created in view of the above circumstances, and the instruction processing function for each class according to the system situation is divided into several classes according to the importance of the command related to system control and its execution is restricted according to the load condition of the system. The purpose is to provide a satellite communication network management system.

1 is a block diagram showing the internal configuration of a central control station of a general satellite communication system.

Figure 2 is a block diagram showing the configuration of a satellite communication network management system having a command processing function for each load rating according to an embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: antenna 20: RF transceiver

21: Orthogonal Mode Transducer (OMT)

22: RF receiver 23: RF transmitter

30: IF processing stage 31: intermediate frequency combination / distribution unit (IF C / D)

32,33: SCPC channel unit 40: network control

41,52: Processor

42: Service Channel Controller (SCC)

43: Dual Port RAM 44: Program Storage

45: base station information storage unit 46: channel information storage unit

50,500: Network management system 51: Operator terminal

53: command storage unit 54: input command confirmation unit

55: Terminal Server 56: Hard Disk Drive (HDD)

57: Magnetic Tape Drive (MTD)

58: input command counting unit 59: class load information storage unit

60: load state determination unit 61: command priority storage unit

Satellite communication network management system having a command processing function for each level according to the present invention for realizing the above object is the control and management of the overall system including the control means for controlling the system status of the overall satellite communication network through the data communication with the central station processor and the base station A network management system having an operator terminal for inputting data required for monitoring and monitoring network operating conditions, comprising: an input command counting means for counting the number of instructions currently being processed under the control of the control means; Load information storage means for each class that stores and sets load class information according to the number of instructions being processed to determine the state, and processing instruction counts counted by the input command counting means based on data stored in the load information storage means for each class. Depending on the number of load state of the system Load status determining means for determining by dividing into classes of; and command priority storing means for storing instructions that can be processed according to each system load class as data; Based on the determined system load status, whether or not the command inputted through the operator terminal is set in the corresponding load class area of the command priority storage means is determined and processed.

That is, according to the present invention having the above-described configuration, by limiting the processing of the command input by the operator in consideration of the load state of the system, an accident such as shutting down the system due to excessive command processing is not delayed. Will be prevented.

Hereinafter, with reference to the accompanying drawings will be described an embodiment according to the present invention.

FIG. 2 is a block diagram illustrating a satellite communication network management system having a command processing function for each class according to an embodiment of the present invention. In FIG. 2, reference numeral 51 denotes data required for a network manager to control and manage a system including a base station. And an operator terminal for monitoring the network operation status, and 52 is an operator terminal communicating with the main processor 41 inside the network control unit 40 according to a command inputted through the operator terminal, through a contracted protocol. The processor 52 is a processor for controlling the system as a whole. The processor 52 is not shown, but is duplicated in the same configuration so as to alternate roles in preparation for any abnormal operation.

On the other hand, reference numeral 53 is a command storage unit for storing the various commands used in the satellite communication network management system 500 as data, 54 is the operator terminal 51 based on the data stored in the command storage unit 53 An input command checking unit 55 for checking whether or not an error of an input command is executed by performing a syntax check and semantic check on the command inputted through the command, wherein the processor 52 and the network controller 40 It is a terminal server of a redundant structure that provides a communication line between the main processors (41).

In addition, reference numeral 56 is a hard disk drive (HDD) that has a redundant structure like the processor 52 and stores data for communication network operation and system management, and 57 is a channel used for subscribers communicating through a satellite channel. It is a magnetic tape drive (MTD) that stores billing data such as TC (Trunk Code) data and talk time of calling / receiving subscribers.

Reference numeral 58 denotes an input instruction counting unit for counting the number of instructions currently being processed under the control of the processor 52, and 59 stores and stores load class information according to the number of instructions being processed to determine the load state. A load information storage unit for each class is used, and 60 denotes a load state of the system according to the number of processing instructions counted by the input command counter unit 58 based on the data stored in the load information storage unit 59 for each class. The load status judgment section that judges the classification into four levels of critical status, high load status, low load status and normal status, and 61 according to each system load rating based on the importance of system operation management and maintenance. Command priority storage that stores commands that can be processed as data.

Next, the operation of the device having the above configuration will be described.

The satellite communication network operation manager monitors the system status including the satellite channel and each base station currently operating through the operator terminal 51 of the network management system 50 and, if necessary, inputs data for system control through contracted commands. The processor 52 first controls the input command checking unit 54 to execute a syntax check and semantic check on a command input by an operator, thereby causing an error in the input command. You will be asked to check.

If an error is detected, such as an error check result, the command input by the operator is confirmed as an unusable command in the system, the processor 52 transmits an error message to the operator terminal 51. If not, the count value of the input command counting unit 58 is increased by '1'.

On the other hand, the load state determination unit 60 compares the newly counted coefficient value with the setting data of the load information storage unit 59 for each grade, and determines the current system load state. Once calculated, this is reported to the processor 52.

The processor 52 refers to the system load class data applied from the load state determining unit 60 to index the command input by the operator in the load class region of the command priority storage unit 61. If the command input by the operator is set in the load class area, the control unit 52 determines that the command can be processed in the current system load state, and the input command is executed in the same manner as the normal command processing. Through the input to the network control unit 40 to process the input command.

On the other hand, if the instruction index result operator input command is not set in the load class area, the processor 52 transmits a command execution impossible message to the operator terminal 51, so that the network operator input the current command Considering the system load condition, it can be confirmed that the command cannot be processed.

Thereafter, the processor 52 counts down the count value of the input command counting unit 58 each time the command being executed is processed to return a response message, and executes the system load state determination operation at every count time point. It manages whether the command that is continuously input by the operator can be processed.

That is, according to the above embodiment, a satellite communication network management system having a command processing function for each class according to a system situation is arranged to divide several classes of commands related to system control according to their importance and to limit the execution according to the load state of the system. It can be realized.

Meanwhile, the present invention is not limited to the above embodiments and can be variously modified within the scope not departing from the technical gist of the present invention.

As described above, according to the present invention, by limiting the processing of the command input by the operator in consideration of the load state of the system, to prevent accidents such as the shutdown of the system due to excessive command processing You can do it.

Claims (2)

It is equipped with a control unit for controlling the system status of the entire satellite communication network through data communication with the central station processor, and an operator terminal for inputting data necessary for the control and management of the system including the base station and monitoring the network operation. A network management system comprising: an input command counting means for counting the number of instructions currently being processed under control of the control means, and load class information storing and setting load class information according to the number of instructions being processed to determine a load condition; Load state determination means for determining the load state of the system by dividing the load state into a predetermined number of classes according to the number of processing instructions counted by the input instruction counting means based on the data stored in the information storage means and the load information storage means for each grade. And commands that can be processed according to each system load class And command priority storage means for storing the data as data, wherein the control means includes a command input of the command priority storage means based on the system load status determined by the load status determination means. A satellite communication network management system having a command processing function for each class according to the system situation, characterized in that it is determined whether or not to execute the processing based on whether or not it is set in the load class region. The method of claim 1, further comprising: command storage means for storing various commands used in the satellite communication network management system as data, and a syntax check on a command input through the operator terminal based on the data stored in the command storage means. And an input command checking means for checking an error of an input command by executing a semantic check).