【摘要】：隨著衛(wèi)星通信地球站的發(fā)展,衛(wèi)星地球站的功能越來越豐富,設(shè)備種類越來越多,系統(tǒng)也日趨復(fù)雜。在這種情況下,要想有效地管理維護衛(wèi)星通信地球站中的各種設(shè)備,最大限度地發(fā)揮衛(wèi)星通信系統(tǒng)的作用,提高系統(tǒng)可用度,一套具備監(jiān)視、告警、控制、管理功能的監(jiān)控系統(tǒng)是非常重要的。本文以某工程研制任務(wù)為背景,基于經(jīng)濟性、成熟性、可靠性、模塊化和減少工作人員勞動強度的基本設(shè)計原則,對某型號機載衛(wèi)星通信地球站監(jiān)控系統(tǒng)的設(shè)計與實現(xiàn)進行了研究與實現(xiàn),主要工作如下:1.根據(jù)本次背景項目機載衛(wèi)星通信地球站的設(shè)備組成、監(jiān)控系統(tǒng)的主要功能和任務(wù),梳理了此次監(jiān)控系統(tǒng)的信號關(guān)系與功能,在此基礎(chǔ)上完成了監(jiān)控系統(tǒng)的硬件選型和框架方案的設(shè)計,完成了軟件模塊功能的劃分和構(gòu)建,同時針對本次項目的特點,對本次監(jiān)控系統(tǒng)的可靠性、可維修性和電磁兼容性進行了設(shè)計和預(yù)估。2.考慮到此設(shè)計的監(jiān)控設(shè)備的使用環(huán)境,在充分考慮設(shè)備的體積、質(zhì)量、可靠性、可維修性和電磁兼容等要求的情況下,結(jié)合以往的工程經(jīng)驗,完成了本次監(jiān)控系統(tǒng)硬件結(jié)構(gòu)布局設(shè)計以及以PC104總線結(jié)構(gòu)為主體的核心硬件選型。3.結(jié)合硬件選型,首先為監(jiān)控系統(tǒng)量身定制了嵌入式Windows XP Embedded操作系統(tǒng),該系統(tǒng)具有占有空間小、啟動速度快的優(yōu)點,支持磁盤寫保護功能,實現(xiàn)本地數(shù)據(jù)的安全可靠。其次,按照軟件工程的設(shè)計流程,對監(jiān)控系統(tǒng)應(yīng)用軟件進行需求說明,包括功能需求、接口需求,在此基礎(chǔ)上完成了監(jiān)控軟件的人機界面和實時控制兩部分的詳細設(shè)計。其中人機界面完成鍵盤的操作處理和界面的實時刷新,實時控制部分進行數(shù)據(jù)通信、數(shù)據(jù)處理。數(shù)據(jù)通信是監(jiān)控系統(tǒng)與各個設(shè)備進行數(shù)據(jù)交換;數(shù)據(jù)處理包括與各個設(shè)備通信時的數(shù)據(jù)轉(zhuǎn)換、頻段切換和數(shù)據(jù)平臺轉(zhuǎn)換。4.采用黑盒法對監(jiān)控系統(tǒng)的功能進行了測試。首先,通過人機界面測試完成了天線伺服方位、俯仰、極化角度值,跟蹤接收機方位誤差電壓、俯仰誤差電壓、AGC電壓值,電視接收機頻率、符號率、糾錯方式,功放功率值與監(jiān)控界面的一致性測試。然后,對天線工作方式、跟蹤接收機、電視接收機、功放、調(diào)制解調(diào)器的工作狀態(tài)監(jiān)控測試以及各設(shè)備故障顯示、告警功能進行了測試。最后,對系統(tǒng)的本、遠控功能,各設(shè)備參數(shù)設(shè)置功能以及雙頻段切換功能進行了測試。測試結(jié)果顯示此次設(shè)計符合要求,系統(tǒng)工作穩(wěn)定可靠。本次設(shè)計已經(jīng)通過了第三方軟件測評,證明功能可靠,能夠很好的完成預(yù)定目的。
[Abstract]:With the development of satellite communication earth station, the functions of satellite earth station are more and more abundant, the kinds of equipments are more and more, and the system is becoming more and more complex. In this case, in order to effectively manage and maintain all kinds of equipment in the satellite communication earth station, to maximize the role of the satellite communication system, to improve the system availability, a set of systems with monitoring, warning, control, Management function of the monitoring system is very important. This paper is based on the basic design principles of economy, maturity, reliability, modularization and labor intensity reduction. The design and implementation of a certain type of airborne satellite communication earth station monitoring system are studied and implemented. The main work is as follows: 1. According to the equipment composition of the airborne satellite communication earth station, the main functions and tasks of the monitoring system, the signal relations and functions of the monitoring system are sorted out. On this basis, the hardware selection and frame design of the monitoring system are completed, and the function of the software module is divided and constructed. At the same time, according to the characteristics of this project, the reliability of the monitoring system is analyzed. Maintainability and electromagnetic compatibility are designed and estimated. 2. Taking into account the use environment of the monitoring equipment designed herein, and taking into account the requirements of the volume, quality, reliability, maintainability and electromagnetic compatibility of the equipment, and combining with previous engineering experience, Completed the monitoring system hardware structure layout design and the PC104 bus structure as the main core hardware selection. 3. Combined with hardware selection, the embedded Windows XP Embedded operating system is customized for the monitoring system at first. The system has the advantages of small space and fast startup speed, supports disk write protection function, and realizes the security and reliability of local data. Secondly, according to the design flow of software engineering, the requirements of monitoring system application software are described, including functional requirements and interface requirements. On this basis, the man-machine interface and real-time control of the monitoring software are designed in detail. The man-machine interface completes the keyboard operation and the real-time refresh of the interface, and the real-time control part carries on the data communication and data processing. Data communication is the data exchange between monitoring system and each device, and data processing includes data conversion, frequency band switching and data platform conversion when communicating with each device. The function of monitoring system is tested by black box method. Firstly, antenna servo azimuth, pitch, polarization angle, azimuth error voltage, pitching error voltage, AGC voltage, frequency of TV receiver, symbol rate, error correction method are completed by man-machine interface test. The conformance test between power amplifier power value and monitor interface. Then, the operation mode of antenna, tracking receiver, TV receiver, power amplifier and modem are tested, as well as the fault display and alarm function of each device. Finally, the system's function, remote control function, equipment parameter setting function and dual band switching function are tested. The test results show that the design meets the requirements and the system works stably and reliably. This design has passed the third-party software evaluation, proved to be reliable, can achieve the intended purpose.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TN927.21

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