需要金幣： 1000 個(gè)金幣 |
資料包括：完整論文 |  |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：23672 |  | |
| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:自動(dòng)抄表是指采用通信和計(jì)算機(jī)網(wǎng)絡(luò)等技術(shù)自動(dòng)讀取和處理數(shù)據(jù)。發(fā)展電能自動(dòng)抄表技術(shù)是為了提高用電管理水平的需要，也是網(wǎng)絡(luò)和單片機(jī)技術(shù)發(fā)展的必然。采用自動(dòng)抄表技術(shù)，不僅能節(jié)約人力資源，更重要的是提高了抄表的準(zhǔn)確性，減少因估計(jì)或謄寫而造成的賬單出錯(cuò)，使供用電管理部門能及時(shí)準(zhǔn)確獲取數(shù)據(jù)信息。本設(shè)計(jì)抄表系統(tǒng)主要由主站端數(shù)據(jù)采集計(jì)算機(jī)、客戶端基于單片機(jī)的抄表模塊、計(jì)量電表三部分組成?？蛻艚K端單片機(jī)模塊和數(shù)據(jù)采集計(jì)算機(jī)通過RS-485串行通信口連接，實(shí)現(xiàn)數(shù)據(jù)傳輸。本設(shè)計(jì)中被測量的電表為威勝3型電表。 本設(shè)計(jì)主要介紹客戶端基于單片機(jī)的電表抄表終端的設(shè)計(jì)和實(shí)現(xiàn)方案，在設(shè)計(jì)抄表系統(tǒng)時(shí)，以上功能均需要滿足，其中主要的部分是供電方式設(shè)計(jì)、數(shù)據(jù)掉電保護(hù)、功能設(shè)計(jì)、終端抄表模塊與數(shù)據(jù)采集計(jì)算機(jī)通信協(xié)議設(shè)計(jì)、實(shí)時(shí)時(shí)鐘功能設(shè)計(jì)。其中終端單片機(jī)抄表模塊主要功能如下：采用三相四線（3ｘ220/380V）供電方式，在三相交流電壓斷一相或二相的條件下，交流電源能維持終端正常工作，并且系統(tǒng)具有備用電池供電功能;具有實(shí)時(shí)測量用戶用電電量功能;具有掉電數(shù)據(jù)保護(hù)功能，能保存用戶用電電量信息。支持DL/T—645電表通信規(guī)約。終端和數(shù)據(jù)采集計(jì)算機(jī)通過RS-485通信，終端具有實(shí)時(shí)時(shí)鐘功能，并且有對時(shí)功能。 關(guān)鍵詞 單片機(jī)；抄表系統(tǒng)；串行通信
Abstract:Automatic Meter Reading, AMR Meter (where) refers to the communication and computer network technology such as Automatic Meter Reading and processing data. Energy automatic meter reading technology development is to improve the management level of electricity, network and the technology rapid development. Adopting automatic meter reading techniques, can not only save manpower resources, more important is to improve the accuracy of the meter, and transcribed estimated or electricity bill, make mistakes in a timely and accurate management department can obtain information. In this example the meter reading scheme can be introduced to gas meter, convenient wait for all sorts of intelligent long-distance meter reading system. The meter reading system mainly consists of the host computer and data acquisition based on SCM client module, measuring meter meter three components. Client terminal single-chip computer and data acquisition module by RS - 485 serial communication, data transmission. In this example the meter is measured in type - 3 meters. This major is introduced based on SCM client terminal of the meter meter in design and implementation scheme design of the meter reading system, above all, to meet function main part of power supply is designed, and data protection. Functional design, terminal meter data acquisition module and computer communication protocol design, functional design of real-time clock.One terminal chip meter main function modules are as follows:adopts three-phase four-wire (3x220/380V power supply, in three-phase) ac voltage phase or break a two-phase conditions, the ac power can maintain the normal work and terminal system has a backup battery power function.with real-time measuring electric power users.has the power to save data protection function, electricity power userssupport DL/T -- buttons meter communication protocols.terminal and data collecting computer through the rs-five 485 communication, terminal and host communication with data integrity in the authentication mechanism.terminal with real-time clock function, and a readier function. Keywords SCM, The computer, Serial communication, C language |
