JP2004525455A5 - - Google Patents

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JP2004525455A5
JP2004525455A5 JP2002570205A JP2002570205A JP2004525455A5 JP 2004525455 A5 JP2004525455 A5 JP 2004525455A5 JP 2002570205 A JP2002570205 A JP 2002570205A JP 2002570205 A JP2002570205 A JP 2002570205A JP 2004525455 A5 JP2004525455 A5 JP 2004525455A5
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JP
Japan
Prior art keywords
field device
supply current
process control
prediction engine
control loop
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JP2002570205A
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JP4741785B2 (ja
JP2004525455A (ja
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Priority claimed from US09/799,824 external-priority patent/US6970003B2/en
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Publication of JP2004525455A publication Critical patent/JP2004525455A/ja
Publication of JP2004525455A5 publication Critical patent/JP2004525455A5/ja
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Publication of JP4741785B2 publication Critical patent/JP4741785B2/ja
Anticipated expiration legal-status Critical
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Claims (13)

  1. 4−20mAプロセス制御ループに結合可能な二つの端子を有するフィールド装置であって、
    4−20mAプロセス制御ループから供給電流を取り出す電子機器装置と、
    前記電子機器装置により消費される供給電流に関連するパラメータを測定するのに適した供給電流測定回路と、
    複数の測定された供給電流パラメータに関わるデータを受信し蓄積するメモリ構体と、
    前記複数の供給電流パラメータに基づいて電子機器装置の寿命を計算するために、前記メモリ構体に接続された予測エンジンとからなるフィールド装置。
  2. 前記フィールド装置がプロセス制御送信機である請求項1に記載のフィールド装置。
  3. 前記フィールド装置がバルブである請求項1に記載のフィールド装置。
  4. 前記予測エンジンが複数の蓄積供給電流パラメータに近似する線形曲線を適用する請求項1に記載のフィールド装置。
  5. 前記予測エンジンが複数の蓄積供給電流パラメータに近似する非線形曲線を適用する請求項1に記載のフィールド装置。
  6. 前記メモリ構体がアレーである請求項1に記載のフィールド装置。
  7. 前記メモリ構体が複数のアレーからなり、第1アレーは複数の連続する測定供給電流に関わるデータを蓄積し、第2アレーは該第1アレーの測定時間に関わるデータを蓄積する請求項1に記載のフィールド装置。
  8. 前記予測エンジンは寿命予測の計算のために、神経回路網分析を使用する請求項1に記載のフィールド装置。
  9. 前記予測エンジンは寿命予測の計算のために、ファジー論理を使用する請求項1に記載のフィールド装置。
  10. フィールド装置中の電子機器ボードの寿命を予測する方法であって、
    電気機器供給電流に関わる複数のパラメータを連続的に測定し、
    数学モデルを連続的に測定される供給電流パラメータに適用し、
    供給電流がある選択された閾値に到達すると予想される未来時間を計算する方法。
  11. 前記未来時間の計算が神経回路網分析を用いて行われる請求項10の方法。
  12. 前記未来時間の計算がファジー論理を用いて行われる請求項10の方法。
  13. 4−20mAプロセス制御ループに接続されるフィールド装置であって、
    電子機器装置、
    4−20mAプロセス制御ループに接続できる供給電流測定回路、
    および、複数の連続する供給電流測定に基づいて、電子機器ボードの残余の寿命を予測する手段とからなるフィールド装置。
JP2002570205A 2001-03-05 2002-03-05 マイクロプロセッサベースの送信機の電子機器ボードの寿命予測方法 Expired - Fee Related JP4741785B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/799,824 US6970003B2 (en) 2001-03-05 2001-03-05 Electronics board life prediction of microprocessor-based transmitters
US09/799,824 2001-03-05
PCT/US2002/006606 WO2002071362A2 (en) 2001-03-05 2002-03-05 Remaining life prediction for field device electronics board

Publications (3)

Publication Number Publication Date
JP2004525455A JP2004525455A (ja) 2004-08-19
JP2004525455A5 true JP2004525455A5 (ja) 2005-12-22
JP4741785B2 JP4741785B2 (ja) 2011-08-10

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JP2002570205A Expired - Fee Related JP4741785B2 (ja) 2001-03-05 2002-03-05 マイクロプロセッサベースの送信機の電子機器ボードの寿命予測方法

Country Status (7)

Country Link
US (1) US6970003B2 (ja)
EP (1) EP1366478B1 (ja)
JP (1) JP4741785B2 (ja)
CN (1) CN1232833C (ja)
AU (1) AU2002244240A1 (ja)
DE (1) DE60235447D1 (ja)
WO (1) WO2002071362A2 (ja)

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