[go: up one dir, main page]

WO2014033850A1 - Control device - Google Patents

Control device Download PDF

Info

Publication number
WO2014033850A1
WO2014033850A1 PCT/JP2012/071819 JP2012071819W WO2014033850A1 WO 2014033850 A1 WO2014033850 A1 WO 2014033850A1 JP 2012071819 W JP2012071819 W JP 2012071819W WO 2014033850 A1 WO2014033850 A1 WO 2014033850A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrical noise
control device
noise
interface
display device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/071819
Other languages
French (fr)
Japanese (ja)
Inventor
輝 西脇
雄亮 守田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2012/071819 priority Critical patent/WO2014033850A1/en
Priority to JP2013513314A priority patent/JPWO2014033850A1/en
Publication of WO2014033850A1 publication Critical patent/WO2014033850A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
    • G06F11/321—Display for diagnostics, e.g. diagnostic result display, self-test user interface

Definitions

  • the present invention relates to a control device that can visually recognize the influence of electrical noise.
  • control devices that use various digital signals as input / output signals to control various controlled devices (external devices) have been used.
  • the input / output signal may be interrupted or an unexpected input signal may be generated due to external factors such as electrical noise.
  • the controlled device may stop or malfunction due to the interruption of the input / output signal or the occurrence of an unexpected input signal.
  • the present invention has been made in view of the above, and an object thereof is to obtain a control device capable of visually recognizing the influence of electrical noise while suppressing cost.
  • the present invention provides a first interface that can be connected to an external device and mediates transmission / reception of signals with the external device, and is input / output via the first interface.
  • a digital noise filter that removes electrical noise from the signal to be transmitted, and transmits up / down information of the removed electrical noise, and a second interface that transmits the up / down information of the electrical noise to a display device.
  • the control device has an effect of visually recognizing the influence of electrical noise while suppressing cost.
  • FIG. 1 is a block diagram illustrating a schematic configuration of a control device according to the first embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a waveform of an input signal at a normal time.
  • FIG. 3 is a diagram illustrating the waveform of the input signal when electrical noise is applied.
  • FIG. 4 is a diagram illustrating a schematic configuration of the display device.
  • FIG. 5 is a diagram for explaining a source of electrical noise.
  • FIG. 1 is a block diagram illustrating a schematic configuration of a control device according to the first embodiment of the present invention.
  • FIG. 2 is a diagram illustrating a waveform of an input signal at a normal time.
  • FIG. 3 is a diagram illustrating the waveform of the input signal when electrical noise is applied.
  • the process input / output 300 receives an input signal from the external device 100.
  • the photocoupler 400 insulates the external circuit 100 side from the internal circuit including the MPU 600.
  • the operation LED 1000 represents the operation state of the unit. For example, the operation LED 1000 is lit green during normal operation and lit red during abnormal operation.
  • the setting S / W 1100 is used to set a transmission speed and the like.
  • the I / O LED 1200 displays the input / output state of each I / O terminal with an LED, and is turned on when a signal is input / output, and is turned off when a signal is not input / output.
  • the influence of noise is removed by the digital noise filter 500 for I / O, thereby restoring the waveform of the input signal at the normal time and performing communication.
  • the input data affected by the electrical noise is subjected to noise removal by the up / down counter function of the I / O digital noise filter 500.
  • the up / down information is transmitted to the MPU 600 and transmitted to the display device 900 connected to the outside via the communication circuit block 700 and the communication interface (second interface) 800.
  • FIG. 4 is a diagram showing a schematic configuration of the display device 900.
  • the display device 900 includes a display unit 900a that can show the influence of electrical noise by turning on and off.
  • the display unit 900a is, for example, an LED.
  • the LED may be turned on when affected by electrical noise, and the LED may be turned off when not affected by electrical noise. As a result, it is possible to visually recognize that the control device 10 is under the influence of noise during use.
  • the brightness of the LED may be increased when the intensity of the electrical noise exceeds a predetermined value, and the brightness of the LED may be decreased when the intensity of the electrical noise is not more than a predetermined value. Moreover, you may change the brightness
  • the LED when the frequency of electrical noise is higher than a predetermined frequency, the LED may blink at a short cycle, and when the frequency of electrical noise is lower than the predetermined frequency, the LED may be blinked at a long cycle. As described above, it is possible to visually recognize detailed information on the electrical noise by switching the blinking method of the LED according to the intensity and frequency of the electrical noise.
  • the visual information shown by the display device 900 allows the user to recognize the influence of electrical noise on the control device 10 in the usage environment in which the control device 10 is placed, and to remove the noise source and change the installation location of the control device. Etc. can be performed properly.
  • FIG. 5 is a diagram for explaining a source of electrical noise.
  • electrical noise is emitted from a communication device 11 such as a mobile phone and a drive device 12 such as a motor.
  • the I / O digital noise filter 500 mounted on the control device 10 detects these electric noises and removes them from the control signal.
  • the electrical noise information (pulse width, frequency) removed by the I / O digital noise filter 500 is fed back and transmitted to the user through the display device 900, whereby the control device 10 It is possible to confirm the generation of electrical noise in the placed usage environment.
  • control device 10 Under the usage environment in which the control device 10 is placed, the user recognizes the presence of electrical noise that can cause malfunctions, thereby taking fundamental measures such as removing noise sources and changing the placement of control devices. Can be implemented, and can lead to preventive maintenance.
  • control device As described above, the control device according to the present invention is useful for visually grasping electrical noise.
  • control devices 11 communication devices, 12 drive devices, 100 external devices, 200 I / O interface (first interface), 500 I / O digital noise filter, 700 communication circuit block, 800 communication interface (second interface), 900 display device, 900a display unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Description

制御機器Control equipment

　本発明は、電気的ノイズの影響を視覚的に認知可能とする制御機器に関する。 The present invention relates to a control device that can visually recognize the influence of electrical noise.

　従来より、デジタル信号を入力／出力信号として使用し、様々な被制御機器（外部機器）の制御を行う制御機器が用いられている。このような制御機器では、電気的ノイズ等の外的要因による入力／出力信号の断絶や、予期しない入力信号の発生が生じる場合がある。入力／出力信号の断絶や、予期しない入力信号の発生により、被制御機器が停止したり、誤動作をしたりするおそれがあった。 Conventionally, control devices that use various digital signals as input / output signals to control various controlled devices (external devices) have been used. In such a control device, the input / output signal may be interrupted or an unexpected input signal may be generated due to external factors such as electrical noise. There is a risk that the controlled device may stop or malfunction due to the interruption of the input / output signal or the occurrence of an unexpected input signal.

　このような事態を回避するためには、制御機器の使用環境下においてどのような電気的ノイズが存在するか、また、制御機器が電気的ノイズによりどのような影響を受けているかを確認することが重要である。しかしながら、電気的ノイズは視覚的に認知することができない。また、実際に被制御機器が受けた影響を外部から調べるためには、計測機器を別途準備する必要があった（例えば、特許文献１）。 In order to avoid such a situation, confirm what kind of electrical noise exists in the usage environment of the control equipment and how the control equipment is affected by the electrical noise. is important. However, electrical noise cannot be visually perceived. Moreover, in order to investigate the influence which the controlled apparatus actually received from the outside, it was necessary to prepare a measuring apparatus separately (for example, patent document 1).

特開２００５－１２８６４２号公報JP 2005-128642 A

　しかしながら、上記従来の技術によれば、計測機器を別途準備することでコストの増加を招いてしまう場合があるという問題があった。 However, according to the above-described conventional technology, there is a problem in that cost may be increased by separately preparing a measuring device.

　本発明は、上記に鑑みてなされたものであって、コストの抑制を図りつつ電気的ノイズの影響を視覚的に認知することのできる制御機器を得ることを目的とする。 The present invention has been made in view of the above, and an object thereof is to obtain a control device capable of visually recognizing the influence of electrical noise while suppressing cost.

　上述した課題を解決し、目的を達成するために、本発明は、外部機器と接続可能とされて外部機器との信号の送受信を仲介する第１インタフェースと、第１インタフェースを介して入出力される信号から電気的ノイズを除去し、除去した電気的ノイズのアップダウン情報を送信するデジタルノイズフィルタと、電気的ノイズのアップダウン情報を表示機器に伝達する第２インタフェースと、を備えることを特徴とする。 In order to solve the above-described problems and achieve the object, the present invention provides a first interface that can be connected to an external device and mediates transmission / reception of signals with the external device, and is input / output via the first interface. A digital noise filter that removes electrical noise from the signal to be transmitted, and transmits up / down information of the removed electrical noise, and a second interface that transmits the up / down information of the electrical noise to a display device. And

　本発明にかかる制御機器は、コストの抑制を図りつつ電気的ノイズの影響を視覚的に認知することができるという効果を奏する。 The control device according to the present invention has an effect of visually recognizing the influence of electrical noise while suppressing cost.

図１は、本発明の実施の形態１にかかる制御機器の概略構成を示すブロック図である。FIG. 1 is a block diagram illustrating a schematic configuration of a control device according to the first embodiment of the present invention. 図２は、正常時の入力信号の波形を例示する図である。FIG. 2 is a diagram illustrating a waveform of an input signal at a normal time. 図３は、電気的ノイズが印加された場合の入力信号の波形を例示する図である。FIG. 3 is a diagram illustrating the waveform of the input signal when electrical noise is applied. 図４は、表示機器の概略構成を示す図である。FIG. 4 is a diagram illustrating a schematic configuration of the display device. 図５は、電気的ノイズの発生源について説明するための図である。FIG. 5 is a diagram for explaining a source of electrical noise.

　以下に、本発明の実施の形態にかかる制御機器を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。 Hereinafter, a control device according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

実施の形態１．
　図１は、本発明の実施の形態１にかかる制御機器の概略構成を示すブロック図である。図２は、正常時の入力信号の波形を例示する図である。図３は、電気的ノイズが印加された場合の入力信号の波形を例示する図である。 Embodiment 1 FIG.
FIG. 1 is a block diagram illustrating a schematic configuration of a control device according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating a waveform of an input signal at a normal time. FIG. 3 is a diagram illustrating the waveform of the input signal when electrical noise is applied.

　図１に示すように、外部機器１００とＩ／Ｏインタフェース（第１インタフェース）２００の経路上に電気的ノイズが印加された場合、図２や図３に示すように、入力信号の波形にはノイズの影響によって乱れが生じる。図１における各部は次の機能を有している。プロセス入出力３００は、外部機器１００からの入力信号を受取るものである。フォトカプラ４００は、外部機器１００側とＭＰＵ６００を含む内部回路を絶縁するものである。動作ＬＥＤ１０００は、ユニットの動作状態を表すものであり、例えば、正常動作時においては緑点灯をし、異常動作時においては赤点灯等をする。設定Ｓ／Ｗ１１００は、伝送速度などの設定を行うものである。Ｉ／Ｏ用ＬＥＤ１２００は、各Ｉ／Ｏ端子の入出力の状態をＬＥＤで表示するものであり、信号の入出力有りにおいては緑点灯をし、信号の入出力無しにおいては消灯等をする。 As shown in FIG. 1, when electrical noise is applied on the path between the external device 100 and the I / O interface (first interface) 200, the waveform of the input signal is as shown in FIGS. Disturbance occurs due to the influence of noise. Each part in FIG. 1 has the following functions. The process input / output 300 receives an input signal from the external device 100. The photocoupler 400 insulates the external circuit 100 side from the internal circuit including the MPU 600. The operation LED 1000 represents the operation state of the unit. For example, the operation LED 1000 is lit green during normal operation and lit red during abnormal operation. The setting S / W 1100 is used to set a transmission speed and the like. The I / O LED 1200 displays the input / output state of each I / O terminal with an LED, and is turned on when a signal is input / output, and is turned off when a signal is not input / output.

　実施の形態１にかかる制御機器１０では、ノイズの影響をＩ／Ｏ用デジタルノイズフィルタ５００により除去することで、正常時の入力信号の波形を復元し、通信を行っている。ここで、図３で示すように、電気的ノイズの影響を受けた入力データはＩ／Ｏ用デジタルノイズフィルタ５００のアップダウンカウンタ機能により、ノイズ除去を行っている。このアップダウン情報をＭＰＵ６００に伝え、通信回路ブロック７００および通信インタフェース（第２インタフェース）８００を介して外部に接続された表示機器９００に伝送する。 In the control device 10 according to the first embodiment, the influence of noise is removed by the digital noise filter 500 for I / O, thereby restoring the waveform of the input signal at the normal time and performing communication. Here, as shown in FIG. 3, the input data affected by the electrical noise is subjected to noise removal by the up / down counter function of the I / O digital noise filter 500. The up / down information is transmitted to the MPU 600 and transmitted to the display device 900 connected to the outside via the communication circuit block 700 and the communication interface (second interface) 800.

　図４は、表示機器９００の概略構成を示す図である。表示機器９００は、点灯・消灯により電気的ノイズの影響を示すことができる表示部９００ａを有する。表示部９００ａは、例えばＬＥＤである。例えば、電気的ノイズの影響を受けた場合にはＬＥＤを点灯させ、電気的ノイズの影響を受けていない場合にはＬＥＤを消灯させればよい。これにより、制御機器１０を使用中にノイズの影響下にあることを視覚的に認識することができる。 FIG. 4 is a diagram showing a schematic configuration of the display device 900. The display device 900 includes a display unit 900a that can show the influence of electrical noise by turning on and off. The display unit 900a is, for example, an LED. For example, the LED may be turned on when affected by electrical noise, and the LED may be turned off when not affected by electrical noise. As a result, it is possible to visually recognize that the control device 10 is under the influence of noise during use.

　また、電気的ノイズの強度が所定の値を越えている場合にはＬＥＤの輝度を大きくし、電気的ノイズの強度が所定の値以下である場合にはＬＥＤの輝度を小さくしてもよい。また、電気的ノイズの強度に応じてＬＥＤの輝度を段階的に変化させてもよい。 Further, the brightness of the LED may be increased when the intensity of the electrical noise exceeds a predetermined value, and the brightness of the LED may be decreased when the intensity of the electrical noise is not more than a predetermined value. Moreover, you may change the brightness | luminance of LED in steps according to the intensity | strength of an electrical noise.

　また、電気的ノイズの周波数が所定の周波数よりも高い場合にＬＥＤを短い周期で点滅させ、電気的ノイズの周波数が所定の周波数よりも低い場合にＬＥＤを長い周期で点滅させてもよい。このように、電気的ノイズの強度や周波数によってＬＥＤの点滅の仕方を切り替えることで、電気的ノイズの詳細な情報を視覚的に認識することが可能となる。 Further, when the frequency of electrical noise is higher than a predetermined frequency, the LED may blink at a short cycle, and when the frequency of electrical noise is lower than the predetermined frequency, the LED may be blinked at a long cycle. As described above, it is possible to visually recognize detailed information on the electrical noise by switching the blinking method of the LED according to the intensity and frequency of the electrical noise.

　表示機器９００によって示される視覚情報により、制御機器１０の置かれた使用環境において、電気的ノイズが制御機器１０に与える影響を使用者が認識し、ノイズ源の除去や制御機器の設置箇所の変更などを適正に行うことが可能となる。なお、表示機器９００を含めて制御機器１０を構成してもよい。 The visual information shown by the display device 900 allows the user to recognize the influence of electrical noise on the control device 10 in the usage environment in which the control device 10 is placed, and to remove the noise source and change the installation location of the control device. Etc. can be performed properly. In addition, you may comprise the control apparatus 10 including the display apparatus 900. FIG.

　図５は、電気的ノイズの発生源について説明するための図である。例えば、図５に示すように、携帯電話などの通信機器１１やモーターなどの駆動機器１２から電気的ノイズが発せられる。制御機器１０に搭載されたＩ／Ｏ用デジタルノイズフィルタ５００がこれらの電気的ノイズを検知して制御信号から除去する。本実施の形態１では、Ｉ／Ｏ用デジタルノイズフィルタ５００によって除去された電気的ノイズの情報（パルス幅、頻度）をフィードバックして、表示機器９００を通して使用者に伝えることで、制御機器１０の置かれた使用環境下において、電気的ノイズの発生を確認することが可能となる。 FIG. 5 is a diagram for explaining a source of electrical noise. For example, as shown in FIG. 5, electrical noise is emitted from a communication device 11 such as a mobile phone and a drive device 12 such as a motor. The I / O digital noise filter 500 mounted on the control device 10 detects these electric noises and removes them from the control signal. In the first embodiment, the electrical noise information (pulse width, frequency) removed by the I / O digital noise filter 500 is fed back and transmitted to the user through the display device 900, whereby the control device 10 It is possible to confirm the generation of electrical noise in the placed usage environment.

　制御機器１０の置かれた使用環境下において、誤動作を誘発しかねない電気的ノイズの存在を使用者が認識することで、ノイズ源の除去や制御機器の配置の変更など、根本的な対策を実施することが可能となり、予防保全に繋げることが出来る。 Under the usage environment in which the control device 10 is placed, the user recognizes the presence of electrical noise that can cause malfunctions, thereby taking fundamental measures such as removing noise sources and changing the placement of control devices. Can be implemented, and can lead to preventive maintenance.

　予防保全のためのメンテナンスは、その実施頻度を高くするほど効果は大きくなるが、しばしばメンテナンスを行うことになった場合、作業工数が増大したり、設備の停止により生産効率が低下したりする、などの問題が発生する。本発明によって電気的ノイズの影響度を客観的に認識することによって、費用対効果の大きい場合にのみメンテナンスを実施するなど、頻度を最適化することが可能である。 The effectiveness of maintenance for preventive maintenance increases as the frequency of implementation increases, but when maintenance is often performed, the number of work steps increases or production efficiency decreases due to equipment shutdown, Problems occur. By objectively recognizing the influence of electrical noise according to the present invention, it is possible to optimize the frequency, such as performing maintenance only when cost effectiveness is high.

　従来、電気的ノイズによる制御機器への影響を確認するためには、テスタやオシロスコープなどの計測機器を用いて、デジタル信号の状態を確認することが必要であったが、本発明により計測機器を使用せずにノイズの影響度を視覚的に確認することが可能となる。 Conventionally, in order to check the influence of electrical noise on the control device, it was necessary to check the state of the digital signal using a measuring device such as a tester or an oscilloscope. It is possible to visually check the degree of influence of noise without using it.

　以上のように、本発明にかかる制御機器は、電気的ノイズを視覚的に把握するのに有用である。 As described above, the control device according to the present invention is useful for visually grasping electrical noise.

　１０　制御機器、１１　通信機器、１２　駆動機器、１００　外部機器、２００　Ｉ／Ｏインタフェース（第１インタフェース）、５００　Ｉ／Ｏ用デジタルノイズフィルタ、７００　通信回路ブロック、８００　通信インタフェース（第２インタフェース）、９００　表示機器、９００ａ　表示部。 10 control devices, 11 communication devices, 12 drive devices, 100 external devices, 200 I / O interface (first interface), 500 I / O digital noise filter, 700 communication circuit block, 800 communication interface (second interface), 900 display device, 900a display unit.

Claims (4)

　外部機器と接続可能とされて前記外部機器との信号の送受信を仲介する第１インタフェースと、
　前記第１インタフェースを介して入出力される信号から電気的ノイズを除去し、除去した電気的ノイズのアップダウン情報を送信するデジタルノイズフィルタと、
　前記電気的ノイズのアップダウン情報を表示機器に伝達する第２インタフェースと、を備えることを特徴とする制御機器。 A first interface that is connectable to an external device and mediates transmission and reception of signals with the external device;
A digital noise filter for removing electrical noise from a signal input / output via the first interface and transmitting up / down information of the removed electrical noise;
A control device, comprising: a second interface that transmits the electrical noise up / down information to a display device. 　前記表示機器をさらに備えることを特徴とする請求項１に記載の制御機器。 The control device according to claim 1, further comprising the display device. 　前記表示機器は、前記アップダウン情報に応じて点灯・消灯を行う表示部を有することを特徴とする請求項２に記載の制御機器。 3. The control device according to claim 2, wherein the display device has a display unit that is turned on / off according to the up / down information. 　前記表示機器は、前記アップダウン情報に応じて前記表示部の輝度および点滅の周期の少なくとも一方を変化させることを特徴とする請求項３に記載の制御機器。 4. The control device according to claim 3, wherein the display device changes at least one of luminance and blinking cycle of the display unit according to the up / down information.
PCT/JP2012/071819 2012-08-29 2012-08-29 Control device Ceased WO2014033850A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2012/071819 WO2014033850A1 (en) 2012-08-29 2012-08-29 Control device
JP2013513314A JPWO2014033850A1 (en) 2012-08-29 2012-08-29 Control equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/071819 WO2014033850A1 (en) 2012-08-29 2012-08-29 Control device

Publications (1)

Publication Number Publication Date
WO2014033850A1 true WO2014033850A1 (en) 2014-03-06

Family

ID=50182700

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/071819 Ceased WO2014033850A1 (en) 2012-08-29 2012-08-29 Control device

Country Status (2)

Country Link
JP (1) JPWO2014033850A1 (en)
WO (1) WO2014033850A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6373896A (en) * 1986-09-12 1988-04-04 Hitachi Ltd Noise warning device of motor controller
JPH10303991A (en) * 1997-04-23 1998-11-13 Matsushita Electric Works Ltd Display unit
EP0955626A2 (en) * 1998-05-06 1999-11-10 Valeo Electronics GmbH & Co. KG Device for generating the noise of technical apparatus
JP2008181561A (en) * 2001-05-07 2008-08-07 Fisher Rosemount Syst Inc Wiring fault detection, diagnosis and reporting for process control system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6373896A (en) * 1986-09-12 1988-04-04 Hitachi Ltd Noise warning device of motor controller
JPH10303991A (en) * 1997-04-23 1998-11-13 Matsushita Electric Works Ltd Display unit
EP0955626A2 (en) * 1998-05-06 1999-11-10 Valeo Electronics GmbH & Co. KG Device for generating the noise of technical apparatus
JP2008181561A (en) * 2001-05-07 2008-08-07 Fisher Rosemount Syst Inc Wiring fault detection, diagnosis and reporting for process control system

Also Published As

Publication number Publication date
JPWO2014033850A1 (en) 2016-08-08

Similar Documents

Publication Publication Date Title
US8503190B2 (en) Monitoring systems and backplane for a monitoring system
US8957870B2 (en) Noise frequency detection method and touch apparatus
MY201611A (en) Electronic device and method for operating the same
EP2613131A3 (en) Detecting rotor anomalies
JP2016111707A5 (en)
WO2014091581A1 (en) Circuit irregularity detection apparatus
CN204225913U (en) Electromagnetic valve driver
CN109213130B (en) Method for filtering burr signal in fault signal
CN107765117B (en) A kind of test device and method of optical module self-healing
EP3220557A1 (en) Burr removing method and apparatus for optical signal loss signal
WO2014033850A1 (en) Control device
WO2015145391A3 (en) Electrical and/or electronic device, in particular welding machine, with removable control panel
CN103777617A (en) Upper-and-lower computer communication monitoring method
CN104182537B (en) Information processing method, device and electronic equipment
KR101775185B1 (en) Inverter with Function of Polling Communication Monitoring
AU2010347422A8 (en) Component detection device and component detection method
CN104218777A (en) Monitoring system of cascaded multilevel high-voltage inverter power unit
CN111065985B (en) safety controller
US20160105015A1 (en) Ground detecting apparatus and relay action detecting apparatus
CN104035020B (en) Can isolation signals interference semiconductor circuit test device
CN204046402U (en) A kind of supervisory control system of capcade multi-level high-voltage frequency transfomrer power unit
CN104316804A (en) Ultrasonic positioning detection alarm used for transformer substation
CN112983932B (en) Hydraulic test bed equipment and data acquisition system, measurement and control system and measurement and control method thereof
CN204086418U (en) High voltage converter monitor apparatus
CN202872341U (en) Motor controller

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2013513314

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12883982

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12883982

Country of ref document: EP

Kind code of ref document: A1