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WO2007031043A1 - Appareil de champ electrique comprenant un dispositif d'affichage - Google Patents

Appareil de champ electrique comprenant un dispositif d'affichage Download PDF

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Publication number
WO2007031043A1
WO2007031043A1 PCT/DE2005/001666 DE2005001666W WO2007031043A1 WO 2007031043 A1 WO2007031043 A1 WO 2007031043A1 DE 2005001666 W DE2005001666 W DE 2005001666W WO 2007031043 A1 WO2007031043 A1 WO 2007031043A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric field
field device
display device
presence sensor
switched
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/DE2005/001666
Other languages
German (de)
English (en)
Inventor
André Frank
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens 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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PCT/DE2005/001666 priority Critical patent/WO2007031043A1/fr
Priority to DE112005003759T priority patent/DE112005003759A5/de
Publication of WO2007031043A1 publication Critical patent/WO2007031043A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/18—Modifications for indicating state of switch
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
    • H03K2217/941—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector
    • H03K2217/94102—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated using an optical detector characterised by the type of activation
    • H03K2217/94106—Passive activation of light sensor, e.g. by ambient light

Definitions

  • the invention relates to an electric field device with a display device which can be switched on and off.
  • Electric field devices are used today in automation technology in many areas. For example, they are used for process autotation, for automatic
  • the electrical field devices are usually in the vicinity of the respective automated process.
  • the electric field devices are usually arranged in control cabinets in the immediate vicinity of electrical circuit breakers.
  • Field devices of the type specified above are commonly known, for example, as SIPROTEC protection and control devices from Siemens. They are used to control and monitor electrical energy supply networks.
  • electrical protective devices automatically carry out certain reactions to different states of the electrical power supply network in order to protect the energy supply network and its components.
  • displayed information may be, for example, graphical representations of the switching states of the controlled by the electric field device switch or also recorded by the electric field device measured values indicating the current state of the electrical energy supply network.
  • the electrical protection devices additionally have an input keyboard via which, for example, adjustments to the electric field device are made, parameters changed or switching operations can be performed for a circuit breaker connected to the respective electric field device.
  • the electrical field devices of the SIPROTEC series are set in such a way that the background lighting of the display element is switched off in the normal state. Only when a key of the input keyboard of the electric field device is actuated, the background lighting of the display element is automatically turned on to make the information displayed by the display element visible. The backlight stays on as long as inputs are made through the input keypad of the electric field device. tes and automatically turns off when the keyboard is not operated after a predetermined period of time.
  • the invention has for its object to provide an electric field device of the type specified above, in which the display device is designed to be particularly comfortable in terms of their readability.
  • a generic electric field device which has a presence sensor has, which is connected to turn on the display device electrically connected thereto.
  • the field device has a presence sensor which is set up in such a way that it detects the presence of a person in the vicinity of the field device and outputs a presence signal at an output when the person is present, and the presence sensor communicates with the display device on the output side stands that the display device is turned on in the presence signal present.
  • the main advantage of an electric field device is that the electric field device detects the presence sensor when a person is in his environment and only then the display device of the electric field device is turned on. This ensures that the display device can also be read when a person is staying at a certain distance from the electric field device without making adjustments to the electric field device via the input device.
  • the life of the display device with respect to a permanently switched - is not extended and disengaged - display device is extended. Furthermore, only the absolutely necessary amount of heat is emitted by the display device, since the display device is still switched off in normal operation. This is an advantage in particular because the amount of heat emitted by a permanently switched-on display device would have to be dissipated to the outside by the field device.
  • electrical field devices are usually constructed in such a way that they are also under adverse environmental conditions, ie, for example, in the case of rain or high humidity. Normally they can not be used in open terrain, they usually have no active cooling devices, such as fans that would require appropriate ventilation holes in the electric field device. Therefore, any amount of heat emitted within the electric field device is to be dissipated to the outside via passive cooling devices, so that a permanently switched-on display device can be problematic in terms of heating technology for the field device.
  • the presence sensor and the display device cooperate in such a way that the display device is only switched on when the presence sensor has detected the presence of a person on the electric field device for a predetermined presence duration.
  • the presence time period provided for triggering the switch-on can be predetermined, for example, in the range of one-half to three seconds.
  • a further advantageous development of the electric field device according to the invention also provides that the presence sensor and the display device cooperate in such a way that the display device remains in the switched-on state for a predetermined time duration after switching on. In this way, it is achieved that the display device does not extinguish immediately when the person is no longer recognized on the electric field device, but runs after another while. This is for example then advantageous if the person is at a distance in which the presence sensor can no longer detect the person absolutely reliable, or the person has first removed from the electric field device, but then turns around again to a certain information on to check the display device again.
  • a further advantageous embodiment of the field device according to the invention provides that the presence sensor is a passive infrared sensor.
  • the presence sensor is a passive infrared sensor.
  • Such sensors have already been tried and tested and respond to the local change of infrared sources, such as the body heat of a residing or moving person in their environment.
  • the display device of the electric field device may further comprise a liquid crystal display element.
  • LCD elements or liquid crystal display elements are characterized by their flat design and consume relatively little electrical energy to represent the information.
  • a backlight arranged behind the liquid crystal display element can be switched on by the presence sensor.
  • the backlight which in this case represents the component that requires the most electrical energy and releases the largest amount of heat, is only switched on occasionally or as needed.
  • a further advantageous embodiment of the electric field device further provides that the presence sensor is designed such that it only the display device then turns on when a person has been detected in the vicinity of the electric field device.
  • the presence sensor is designed such that it only the display device then turns on when a person has been detected in the vicinity of the electric field device.
  • a range between 0 and 5 m can be regarded as the near field of the electric field device. This can be regarded as a typical area in which an operator would stop to read information from the display device of an electric field device.
  • By appropriately selecting the sensitivity of the presence sensor it can be achieved that only the display device of that field device is switched on, to which the person present is closest.
  • the presence sensor is arranged on the front of the electric field device. In this way, it can be ensured that even with a built-in wall or cabinet electric field device, the presence sensor can perform a secure detection of a person present without being disturbed by intervening sheets or walls.
  • FIG. 1 shows a schematic representation of the front view of an electrical protective device
  • Figure 2 is a schematic block diagram for explaining the control of a display device of the electric field device
  • FIG. 3 shows a schematic representation of a plurality of electrical field devices installed in control cabinets, viewed from above.
  • FIG. 1 shows an electric field device 1 with an input device in the form of an input keyboard 2 and a display device 3.
  • the electric field device may be, for example, a control or protective device, as used in the control and monitoring of electrical energy supply networks .
  • this circuit breaker connected to the electric field device 1 is in its open position.
  • the display device 3 can also be used to display any other symbols and graphics, setting and status values of the electric field device and measured values that have been recorded by the electric field device. Such measurements could e.g. Be current and voltage readings of an electrical power supply line.
  • the display device 3 of the electric field device can be, for example, a liquid-crystal display element, as is commonly used in many electrical appliances.
  • the liquid crystal display element can be set up for monochrome or multicolor display of information.
  • other Pointing elements such as correspondingly small plasma or tube screens, conceivable.
  • the electric field device also has a presence sensor 5, which is also located in the front panel of the electric field device 1. Via the presence sensor 5, the presence of a person in the vicinity of the electric field device 1 can be detected and, depending on the detected presence of a person, the display device 3 can be switched on or off.
  • presence sensors for example, passive infrared sensors that detect a movement of heat sources, but also any other types of thermal detection or motion detectors can be used.
  • FIG. 2 shows a schematic block diagram with which the activation of the display device 3 is to be explained.
  • the presence sensor 5 detects the presence of a person in the vicinity of the electric field device, it outputs a presence signal A at its output 6.
  • This presence signal A is transmitted to a control device 7 for the display device 3.
  • the display device 3 consists of an LCD or liquid-crystal display element 8, the display area of which can be illuminated by a background lighting device 9.
  • the background lighting device 9 of the display device 3 is turned on via the driving device 7, so that the of the
  • the backlight device 9 either immediately upon detection of a person in the vicinity of the electric field device be switched on or with a certain time delay, if it is determined that the person stays in the vicinity of the electric field device for a predetermined presence period, such as 1 second.
  • the presence sensor can be designed such that it only emits the presence signal A when the person has been detected in the vicinity of the electric field device during this predetermined presence period, or the presence sensor 5 gives immediately upon detection of a person in the area of the electric field device 1 from a presence signal A and the control device 7 of the display device 3 controls the display device 3 only after the expiry of the predetermined presence time period, if the presence signal A is still present then.
  • the presence sensor 5 no longer outputs a presence signal A to the activation device 7.
  • the display device 3 can be switched off immediately, for example, by switching off the backlight unit 9, or the display device 3 can remain switched on for a predetermined time duration, for example, to the person who was in the vicinity of the electric field device. to give the possibility to check information on the display device 3 again from a greater distance.
  • FIG. 3 shows a top view in which a plurality of electrical field devices 10a to 10h are arranged in switching cabinets 11 and 12 indicated only schematically.
  • An operator 13 is in the vicinity of the electric field devices 10d and 10e, for example, to check measured values that are displayed by the display devices 3.
  • the property Safety sensors 5 of the electric field devices 10a to 10h are adjusted in terms of their sensitivity such that only the display devices of the electric field devices 10d and 10e, in whose immediate vicinity the operator 13 is located, are switched on.
  • the remaining display devices 3 of the electric field devices 10a to 10c and 10f to 10h remain switched off because the operator 13 is not in their vicinity.
  • the near range can be set between zero and a few meters, for example 5 m.
  • a proximity range for detecting the presence of a person 13 in the vicinity of the electric field devices 10a to 10h could be set to one meter, since the electrical field devices are arranged comparatively close to one another. It is thus achieved that in fact only the display devices 3 of those field devices to which the operator 13 has approached one meter or less are switched on. The remaining display devices remain switched off, so that no additional heat is generated in the field devices, which are not viewed by the operator 13, by the display devices being switched on. This contributes very advantageously to the heat balance of the electric field devices and prevents, for example, overheating of the sensitive electrical and electronic components in the interior of the electrical field devices.
  • the presence sensors can cooperate with the display devices of the respective electric field devices so that only then a display device of an electric field device is turned on when the operator stays for a predetermined presence period of time, for example, 1 second in the vicinity of the electric field devices.

Landscapes

  • Controls And Circuits For Display Device (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

L'invention concerne un appareil de champ (1) électrique comprenant un dispositif d'affichage (2) pouvant être mis en marche ou arrêté. L'objectif de l'invention est de produire ledit appareil de champ de manière confortable, en ce qui concerne la lisibilité du dispositif d'affichage. A cet effet, ledit appareil comprend un détecteur de présence (5), qui est relié au dispositif d'affichage et qui permet de le mettre en marche.
PCT/DE2005/001666 2005-09-16 2005-09-16 Appareil de champ electrique comprenant un dispositif d'affichage Ceased WO2007031043A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/DE2005/001666 WO2007031043A1 (fr) 2005-09-16 2005-09-16 Appareil de champ electrique comprenant un dispositif d'affichage
DE112005003759T DE112005003759A5 (de) 2005-09-16 2005-09-16 Elektrisches Feldgerät mit einer Anzeigevorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2005/001666 WO2007031043A1 (fr) 2005-09-16 2005-09-16 Appareil de champ electrique comprenant un dispositif d'affichage

Publications (1)

Publication Number Publication Date
WO2007031043A1 true WO2007031043A1 (fr) 2007-03-22

Family

ID=36177944

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/001666 Ceased WO2007031043A1 (fr) 2005-09-16 2005-09-16 Appareil de champ electrique comprenant un dispositif d'affichage

Country Status (2)

Country Link
DE (1) DE112005003759A5 (fr)
WO (1) WO2007031043A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010022759A1 (fr) * 2008-08-28 2010-03-04 Siemens Aktiengesellschaft Dispositif d'affichage électronique, installation utilisant les techniques d'automatisation, ainsi que procédé d'exploitation d'un dispositif d'affichage électronique
WO2024245670A1 (fr) * 2023-06-01 2024-12-05 Vega Grieshaber Kg Procédé de fonctionnement d'un dispositif de terrain ayant une unité de collecte d'énergie et dispositif de terrain

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0907158A1 (fr) * 1997-09-29 1999-04-07 Sharp Kabushiki Kaisha Appareil de contrÔle d'affichage avec économie ameliorée d'illumination du rétro-éclairage
US6498600B1 (en) * 1999-08-18 2002-12-24 Ericsson Inc. Electronic devices including keypads that illuminate in response to proximity of a user and methods of operating such electronic devices
US20030189211A1 (en) * 2002-04-03 2003-10-09 Mitsubishi Electric Research Laboratories, Inc. Automatic backlight for handheld devices
US20040233153A1 (en) * 2003-05-22 2004-11-25 Heber Robinson Communication device with automatic display and lighting activation and method therefore
GB2411278A (en) * 2004-02-20 2005-08-24 Pelikon Ltd Display activated by presence of user

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0907158A1 (fr) * 1997-09-29 1999-04-07 Sharp Kabushiki Kaisha Appareil de contrÔle d'affichage avec économie ameliorée d'illumination du rétro-éclairage
US6498600B1 (en) * 1999-08-18 2002-12-24 Ericsson Inc. Electronic devices including keypads that illuminate in response to proximity of a user and methods of operating such electronic devices
US20030189211A1 (en) * 2002-04-03 2003-10-09 Mitsubishi Electric Research Laboratories, Inc. Automatic backlight for handheld devices
US20040233153A1 (en) * 2003-05-22 2004-11-25 Heber Robinson Communication device with automatic display and lighting activation and method therefore
GB2411278A (en) * 2004-02-20 2005-08-24 Pelikon Ltd Display activated by presence of user

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010022759A1 (fr) * 2008-08-28 2010-03-04 Siemens Aktiengesellschaft Dispositif d'affichage électronique, installation utilisant les techniques d'automatisation, ainsi que procédé d'exploitation d'un dispositif d'affichage électronique
US8941557B2 (en) 2008-08-28 2015-01-27 Siemens Aktiengesellschaft Electronic display apparatus, installation pertaining to automation technology, and method for operating an electronic display apparatus
WO2024245670A1 (fr) * 2023-06-01 2024-12-05 Vega Grieshaber Kg Procédé de fonctionnement d'un dispositif de terrain ayant une unité de collecte d'énergie et dispositif de terrain

Also Published As

Publication number Publication date
DE112005003759A5 (de) 2008-08-28

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