JP5847319B2 - 無線工業プロセスフィールドデバイス、及び無線工業プロセスフィールドデバイスを給電する方法 - Google Patents
無線工業プロセスフィールドデバイス、及び無線工業プロセスフィールドデバイスを給電する方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 92
- 238000004519 manufacturing process Methods 0.000 title claims description 43
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- 238000004891 communication Methods 0.000 claims description 23
- 239000003990 capacitor Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 5
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- 239000012530 fluid Substances 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25428—Field device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
工業プロセスのプロセス変数の制御又は監視に使用される無線工業プロセスフィールドデバイスは、工業プロセスのプロセス変数を検出又は制御するように構成されたプロセスインタフェース要素を含む。プロセスデバイス回路は、プロセスインタフェース要素で工業プロセスのプロセス変数を測定又は制御するように構成されたプロセスインタフェース回路を含む。無線通信回路は、無線通信のために構成される。電源回路は、電力貯蔵要素からプロセスデバイス回路に出力電圧で電力を提供するように構成される。低損失(LDO)電圧レギュレータは、出力電圧を降下させるように構成される。昇圧コンバータは、出力電圧を上昇させるように構成される。
本発明は、プロセス変数トランスミッタ又はプロセス制御装置といった無線工業プロセスフィールドデバイスに電源回路を提供する。電源回路は、選択的に無線工業プロセスフィールドデバイスの電力回路とすることができる昇圧コンバータを含んだ昇圧器及び低損失(LDO)電圧レギュレータを含む。バッテリ寿命を増加させるために、LDO及び昇圧コンバータの組み合わせが使用される。昇圧器とLDO間を切り換えるために、比較器が使用される。
Claims (17)
- 工業プロセスのプロセス変数の制御又は監視に使用される無線工業プロセスフィールドデバイスであって、
工業プロセスのプロセス変数を検出又は制御するように構成されたプロセスインタフェース要素と、
プロセスデバイス回路であり、
プロセスインタフェース要素で工業プロセスのプロセス変数を測定又は制御するように構成されたプロセスインタフェース回路と、
無線通信のために構成された無線通信回路と、を含むプロセスデバイス回路と、
電力貯蔵要素と、
電力貯蔵要素からプロセスデバイス回路に出力電圧で電力を提供するように構成された電源回路であって、
電力貯蔵要素の電圧を降下させて、プロセスデバイス回路に降下した電圧を提供するように構成された低損失(LDO)電圧レギュレータと、
電力貯蔵要素の電圧を上昇させて、プロセスデバイス回路に上昇した電圧を提供するように構成された昇圧コンバータと、
電力貯蔵要素からの出力電圧が閾値より上のときに、昇圧コンバータをオフにするように構成された比較器と、
比較器からの出力に反応して、電力貯蔵要素からの出力電圧が閾値を超えるときに、低損失電圧レギュレータの出力をプロセスデバイス回路に接続し、さらに、電力貯蔵要素からの出力電圧が閾値未満のときに、昇圧コンバータの出力をプロセスデバイス回路に接続するように構成されるアナログスイッチと、
を含む電源回路と、
を含む無線工業プロセスフィールドデバイス。 - 比較器が、電力貯蔵要素の出力電圧に反応する請求項1に記載の無線工業プロセスフィールドデバイス。
- 比較器が、電力貯蔵要素の出力電圧と電圧閾値を比較する請求項2に記載の無線工業プロセスフィールドデバイス。
- 出力電圧が電圧閾値未満である場合、比較器が、昇圧コンバータをプロセスデバイス回路に結合させる請求項3に記載の無線工業プロセスフィールドデバイス。
- 出力電圧が電圧閾値を超える場合、比較器が、低損失電圧レギュレータをプロセスデバイス回路に結合させる請求項3に記載の無線工業プロセスフィールドデバイス。
- 電圧閾値が3.0ボルトを含む請求項4に記載の無線工業プロセスフィールドデバイス。
- 比較器の出力が、昇圧コンバータに結合される請求項1に記載の無線工業プロセスフィールドデバイス。
- 低損失電圧レギュレータがプロセスデバイス回路に結合される場合、比較器が、昇圧コンバータの作動を停止して消費電力を減少させる請求項7に記載の無線工業プロセスフィールドデバイス。
- 電力を貯蔵するように構成された、プロセスデバイス回路に結合された大容量コンデンサを含む請求項1に記載の無線工業プロセスフィールドデバイス。
- 電力貯蔵要素が、バッテリ又はコンデンサを含む電力貯蔵要素のグループから選ばれる請求項1に記載の無線工業プロセスフィールドデバイス。
- プロセスデバイス回路に低損失電圧レギュレータを結合させるように構成されたダイオードを含む請求項1に記載の無線工業プロセスフィールドデバイス。
- 工業プロセスのプロセス変数の制御又は監視に使用される種類の無線工業プロセスフィールドデバイスを給電する方法であって、
工業プロセスのプロセス変数を検出又は制御するように構成されたプロセスインタフェース要素を提供するステップと、
プロセスインタフェース要素で動作するように構成されたプロセスデバイス回路を提供するステップであり、プロセスデバイス回路が、無線通信のために構成された無線通信回路を含むステップと、
電力貯蔵要素からの出力電圧を提供するステップと、
電力貯蔵要素の出力電圧が閾値よりも上のときに、電力貯蔵要素の出力電圧を降下させることによって形成された降下された電圧を提供する第1のコンバータの出力を、プロセスデバイス回路に選択的に結合するステップと、
電力貯蔵要素の出力電圧が閾値よりも下のときに、電力貯蔵要素の出力電圧を上昇させることによって形成された上昇された電圧を提供する第2のコンバータの出力を、プロセスデバイス回路に選択的に結合するステップと、
電力貯蔵要素の出力電圧が閾値よりも上のときに、第2のコンバータをオフにするステップと、
を含む方法。 - 第2のコンバータが昇圧コンバータであり、出力電圧が電圧閾値未満である場合、選択的に結合させるステップが、昇圧コンバータの出力をプロセスデバイス回路に結合させることを含む請求項12に記載の方法。
- 第1のコンバータが低損失(LDO)電圧レギュレータであり、出力電圧が電圧閾値を超える場合、選択的に結合させるステップが、低損失電圧レギュレータの出力をプロセスデバイス回路に結合させることを含む請求項12に記載の方法。
- 電圧閾値が3.0ボルトを含む請求項12に記載の方法。
- 出力電圧が閾値よりも上の場合、昇圧コンバータの作動を停止して消費電力を減少させるステップを含む請求項12に記載の方法。
- 電力を貯蔵するためにプロセスデバイス回路に大容量コンデンサを結合させるステップを含む請求項12に記載の方法。
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US13/282,681 US9310794B2 (en) | 2011-10-27 | 2011-10-27 | Power supply for industrial process field device |
US13/282,681 | 2011-10-27 | ||
PCT/US2012/061281 WO2013062896A1 (en) | 2011-10-27 | 2012-10-22 | Power supply for industrial process field device |
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JP2014532920A JP2014532920A (ja) | 2014-12-08 |
JP5847319B2 true JP5847319B2 (ja) | 2016-01-20 |
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US (1) | US9310794B2 (ja) |
EP (1) | EP2771748B1 (ja) |
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2011
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-
2012
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US9310794B2 (en) | 2016-04-12 |
CN103092238B (zh) | 2016-12-14 |
EP2771748A1 (en) | 2014-09-03 |
JP2014532920A (ja) | 2014-12-08 |
CN202694194U (zh) | 2013-01-23 |
WO2013062896A1 (en) | 2013-05-02 |
CN103092238A (zh) | 2013-05-08 |
US20130106369A1 (en) | 2013-05-02 |
EP2771748B1 (en) | 2017-03-15 |
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