EP1665192B1 - Procede et dispositif de communication avec un systeme - Google Patents

Procede et dispositif de communication avec un systeme Download PDF

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Publication number
EP1665192B1
EP1665192B1 EP04765503.0A EP04765503A EP1665192B1 EP 1665192 B1 EP1665192 B1 EP 1665192B1 EP 04765503 A EP04765503 A EP 04765503A EP 1665192 B1 EP1665192 B1 EP 1665192B1
Authority
EP
European Patent Office
Prior art keywords
communication device
plant
operating time
battery
communication
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.)
Expired - Lifetime
Application number
EP04765503.0A
Other languages
German (de)
English (en)
Other versions
EP1665192A1 (fr
Inventor
Gottfried Rieger
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP1665192A1 publication Critical patent/EP1665192A1/fr
Application granted granted Critical
Publication of EP1665192B1 publication Critical patent/EP1665192B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Definitions

  • the invention relates to a method and a device for communication with a system, in particular for operating and monitoring an automation system in industrial production.
  • Output devices or in other words observation devices, are, for example, warning lights, alphanumeric or graphic displays which inform the plant operator about the current state of the plant.
  • Input devices or in other words HMI devices, are e.g. Switches, knobs or keyboards for alphanumeric input that allow the operator to interact with the system.
  • HMI devices for the purpose of communication between user and equipment, so-called HMI devices, hereinafter referred to as communication devices, are fixed to the equipment itself or e.g. installed in the production hall where the system is located.
  • a typical communication device has a handy housing on which input and output devices are arranged. The data exchange with the system or with its control takes place via a permanently installed connection cable.
  • wired communication devices For very large or difficult to access systems wired communication devices are no longer manageable. For this purpose, there are mobile, ie freely movable, wirelessly communicating with the system and battery-powered communication devices, which handle the data exchange with the system via wireless connection.
  • the wireless communication devices must be equipped according to various industry standards with security features that help in case of danger, the safe state of the system can be achieved. For radio-based communication devices this is usually the so-called stop function.
  • the stop function is usually realized by a safety button on the communication device. Pressing this button causes the system to stop immediately.
  • the enabling function is triggered by a safe, two- or three-stage enabling button in order to activate safety-critical movements, such as those in the pressed or half-pressed position of the button. to trigger the process of a plant part or moving a robot arms.
  • a safe, two- or three-stage enabling button in order to activate safety-critical movements, such as those in the pressed or half-pressed position of the button. to trigger the process of a plant part or moving a robot arms.
  • the consent button By releasing or completely pressing (panic function) the consent button, the corresponding movement is stopped immediately, so to speak, the consent to this lifted.
  • a controlled deregistration of the mobile communication device from the system takes place, after which it is again transmitted via e.g. Fixed wired communication devices are operated and monitored, but continue to operate normally without triggering the safety shutdown. Also, known devices for the state of charge of the battery are present. The operator has to draw the right conclusions himself, e.g. stop operating and monitoring the system in good time using the mobile communication device and logging it out of the system properly so as not to activate the on-board safety functions.
  • the object of the invention is to provide a method and a device to allow the operator as possible to use the full battery capacity, and yet to avoid the battery shutdown caused by plant shutdown.
  • the object is achieved by a method for communication with a system, in particular for operating and monitoring an automation system in industrial production.
  • a battery-powered communication device is present to exchange data with the system.
  • the state of charge of the battery is determined and determined from the state of charge, the estimated remaining life of the communication device.
  • a measure is taken in the system or in the communication device.
  • a meaningful size is determined, which can be further processed in the system or in the communication device.
  • the time e.g. in minutes, provides much more useful information than the knowledge of the state of charge of the battery, e.g. in percent.
  • Due to the time determined measures can be taken in the system or in the communication device. These may e.g. consist in reducing the power consumption in the communication device by the brightness of a display located thereon is lowered. Or the user is displayed as a measure with sufficient remaining time no information about state of charge or remaining time. As a result, he is not distracted because he does not need to worry about the state of charge at this time. Other measures may be the issuing of an audible, visual or mechanical warning to the user, e.g. by honking, flashing or vibrating the communication device when approaching remaining time zero.
  • the threshold value can be set individually for each system. For example, if the operator needs little time to complete any work with the communication device, the threshold can be kept very low, so that, as a rule, ie for most battery states, the operator is never faced with any action. For residual maturities above the threshold value, the operator is not bothered, for example, the functionality of the communication device is completely given. The operator does not need to process additional information.
  • An advantageous measure is to display the remaining time to the operator.
  • the display can be permanent or only below a given threshold for the remaining time.
  • the indication of the remaining time in minutes is e.g. via an alphanumeric display on the communication device.
  • the user can assess much better, whether or which work he can still properly complete with the help of the communication device in the remaining time before the battery is completely emptied.
  • the user can use the almost full operating time of the communication device as possible and still log off the communication device in time at the plant, i. properly release control of the mobile communication device, avoiding the system's automatic shutdown of the entire system.
  • the functionality of the communication device is changed as a function of the remaining time.
  • the functionality it is possible to guide the user purposefully and to take decisions from him. For example, the user can never trigger functions on the system via the communication device, which can not be locked within the determined remaining term. This avoids that the user triggers an excessively long process, which would inevitably lead to the activation of the system-side safety functions due to tearing off of the radio contact after battery depletion. The user can not accidentally activate such operations.
  • a plurality of threshold values are predetermined and the functionality of the communication device is successively changed upon reaching each threshold value.
  • a targeted user guidance on the communication device can be realized, in which, for example, its functionality is gradually reduced, for example, with decreasing remaining time.
  • the operator must restrict himself increasingly in the operation of the plant. As a result, he can be led to an always safe use of the communication device, whereby much responsibility for incorrect operation of the communication device is taken away.
  • Escalation levels are implemented in the communication device, ranging from an unrestricted normal operation over warnings and restrictions of functionality to automatic intervention in the triggered by the communication device functions or stopping the system.
  • the functionality is changed in such a way that a consent function that can be triggered by the communication device on the system is forcibly deactivated. As of a certain remaining time, a possibly given by the user approval function is automatically canceled and is not re-activated. This prevents the operator, for example, from carrying out safety-relevant movements in a system for which he no longer has enough time at the communication device. Safe plant operation is always granted here.
  • the functionality is changed in such a way that a stop function that can be triggered by the communication device on the system is forcibly activated. This is e.g. a final level of security given to trigger the safe plant downtime, if the user has overlooked despite all warnings about the remaining time remaining before the complete emptying of the battery, and the inevitable associated demolition of the radio link control of the mobile communication device defined.
  • the object is further achieved by a device for communication with a system, in particular for operating and monitoring an automation system in industrial production.
  • the device has a battery-containing Communication device for exchanging data with the system. It also has a measuring device for determining the state of charge of the battery and the expected remaining life of the communication device. In addition, it has a cooperating with the measuring device control device for taking action in the system or in the communication device.
  • the battery is usually a rechargeable battery.
  • the measuring device may e.g. a standard module for state of charge measurement of the accumulator be, which is partly already integrated in the accumulator itself today.
  • a current sensor for determining the current power consumption of the communication device, possibly linked to a program module in the operating software of the communication device so the calculation of the remaining time can be done.
  • the control device is also realized, for example, as a program module or else a corresponding control IC, which emits various electrical control signals depending on the state of charge.
  • a threshold value switch is included in the device, which cooperates with the measuring device and the control device.
  • This is e.g. realized as an electrical comparator or as a program module and triggers depending on the remaining time by the delivery of a control signal from a measure.
  • the device has a display device for the remaining time.
  • This may be a separate display in the form of a light bar labeled with times, but also the display of the time display in an existing anyway on the communication device alphanumeric display.
  • a switch is provided in the device, which cooperates with the measuring device and so is coupled to the remaining term.
  • the switch may be, for example, a program module of the operating software located in the communication device in order to change the functionality of the communication device.
  • An advantageous embodiment of the device provides a deactivatable by the switch enable switch. Is e.g. provided as a measure the deactivation of the enabling function, the enabling switch can be deactivated by the switch, that is, the electrical contact in the enabling switch is completely interrupted. Even a pressure on the consent switch no longer leads to an electrical connection and the consent is canceled and can no longer be activated.
  • the contact on the stop button can be closed without the switch actually being depressed by the user. This is similar to a forced pressure on the stop button.
  • Fig. 1 shows a plant 2 for industrial production with a communication device 4 in a partially broken representation for wireless data exchange with the system 2.
  • the wireless data exchange takes place via a radio link 6 between two, attached to the system 2 and the communication device 4 antennas 8 and 10th
  • the communication device 4 has on its upper side 12 a centrally arranged, rectangular display 14. Left and right of the display 14 are parallel to the display edge arranged control buttons 16, of which Fig. 1 only the two left are visible. Parallel to the bottom of the display 14 two enabling buttons 18 are arranged at the lower edge. Above the display 14, a stop button 20 is attached to the communication device 4.
  • a measuring device 26 for determining the state of charge of the accumulator 22 is connected to the accumulator 22 via a measuring line 24.
  • the measuring device 26 is connected to a control device 28.
  • the control device 28 is in turn connected via control lines 30 and 32 to the enabling buttons 18 and the stop button 20.
  • a changeover switch 33 is integrated, which is also connected to the measuring device 26.
  • the changeover switch 33 serves to influence the functionality of the communication device 4, that is, for example, to influence the display 14 and the function of the button 16 and enabling button 18.
  • the switch 33 thus has an influence on the running in the communication device 4 or the system 2 control software.
  • a pressure on the stop button 20 causes in the system 2 an immediate plant standstill.
  • the functionality of the stop button 20 thus corresponds to that of an industry standard red and yellow emergency stop button.
  • the stop button 20 since it works only battery-dependent and its release is transmitted only via an insecure radio link 6 to the system 2, not red-yellow.
  • the control buttons 16 and enabling button 18 are assigned depending on the programming of the system or the communication device 4 and the respective state of the running in the communication device 4 operating program with various functions, it is called softkeys.
  • the enabling buttons 18 are associated with safety-relevant functions, which are activated only during the holding of the enabling button 18. For example, the pressure on the left enabling button 18 causes the procedure of a robot arm in the system 2. By releasing the corresponding button 18, this movement stops immediately.
  • the stop button 20 can be activated, so the system 2 are stopped, without this is actually pressed mechanically.
  • the control lines 30, however, cause a withdrawal of the consent function in the enabling buttons 18, so its deactivation, without that they are actually released. Also renewed pressure on the enabling button 18 causes no renewed consent function.
  • the display 14 is a graphics-capable matrix display, which is also freely programmable depending on the software program in the system 2 or in the communication device 4.
  • a charge indicator 34 which reflects the state of charge of the accumulator 22 in the communication device 4.
  • Fig. 1 the accumulator is charged to about three quarters, so six of the eight segments 36 of the charging indicator 32 are shown as black bars.
  • This display takes the communication device 4 serving user that sufficient energy in the accumulator 22 is available to work initially with the communication device 4 without restriction.
  • Fig. 2 shows a mobile, portable communication device 4 in an alternative, round embodiment with a total of eight Control buttons 16 and five enabling buttons 18.
  • the communication device 4 is shown in plan view.
  • Fig. 2a the accumulator 22 is fully charged, so all eight segments 36 of the charging indicator 34 are shown as black bars.
  • the state of charge of the accumulator 22 drops, whereupon the segments 36 of the charging indicator 34, starting from the left, gradually go out.
  • the residual time of the communication device 4 is constantly determined internally and transmitted to the control device 28 and monitored by it so to speak.
  • the calculation of the remaining time is carried out in the communication device 4 in the measuring device 26 from the state of charge of the accumulator 22, the resulting amount of final energy in the accumulator 22 and the current power consumption of the communication device 4 per unit time, either as fixed empirical value or measured by an ammeter not shown.
  • Fig. 1b is determined as the maximum remaining time a time of 30min. Four of the eight segments 36 are extinguished, the accumulator 22 has thus dropped to about half its state of charge.
  • the threshold value the value of 30 minutes residual maturity is set in the control device 28. Therefore, the following measure is taken at this time by the control device 28: Upon reaching the remaining term of 30 minutes, the expected remaining maximum remaining term of the communication device 4 is displayed in a status line 38 below the charging display 34 in alphanumeric representation.
  • a warning window 40 is displayed on the display 14.
  • the user is informed by the text message "Critical battery status reached" that the accumulator 22 has fallen to a critical state of charge, in this case half the emptying of the accumulator 22 is reached.
  • the user is additionally advised to note from now on the remaining time during which the communication device 4 is still operational.
  • the warning window 40 which covers, for example, process information of the plant shown on the display 14, can be made to disappear by pressing a control knob 16.
  • the jam line 38 remains displayed during the 30-minute remaining term of the communication device 4. From this point on, the jam line 38 thus provides the user with more precise information about the remaining operating time than the charge indicator 34. If the accumulator 22 is as shown in FIG Fig.1 or 2a loaded more than half, which corresponds to a remaining time of more than 30 minutes, on the other hand, no status line 38 is displayed in order not to bother the user with unnecessary information.
  • Fig. 1b the full safety-relevant functionality of the communication device 4 is still available, ie that all enabling buttons 18 and the stop button 20 are ready for operation.
  • the functionality of some control buttons 16, however, is changed so that they in Fig. 2b no longer trigger a function.
  • the blocked functions are intended to trigger events in the Appendix 2, which last longer than 30 minutes, and thus exceed the remaining term of the communication device 4. In order for the user to perform these operations in Fig. 2b is no longer accidentally triggered, which would necessarily lead to a loss of control after 30 minutes, these functions are no longer available.
  • a further threshold value is stored in the control unit 28 in the communication device 4, in which a warning window 40 appears again in the display 14 as a measure.
  • the warning message indicates that from now on the enabling buttons 18 are deactivated.
  • an enabling button 18, which is held depressed at this moment, is deactivated, ie the enabling function is immediately withdrawn via the control line 30, which leads to an immediate stop of the movement on the system 2 caused by it.
  • no safety-critical function on the other enabling button 18 can be triggered more.
  • the alert window 40 also informs the operator that the stop button 20 is still operational, but the stop function on the system is not activated, so the system is still in normal operating condition. A pressure on the stop button 20 would still cause the immediate plant downtime.
  • the warning window 40 since it is in this case already a critical warning of the user, displayed flashing, accompanied by audible warning tones from a speaker, not shown, and by vibration of the communication device 4, namely by vibration of the accumulator 22. This draws the user's attention to the display 14, even if he does not see it there, as he is e.g. Annex 2 is observed.
  • the stop function on the system 2 activated ie the system 2 from the communication device 4 stopped defined. This is done by a threshold value of one minute in the control device 28 as a measure and is achieved by the activation of the stop button 20 via the control line 32. The operator is informed this again via a warning window 40, which no longer, as in Fig. 1b and c can be removed by pressing a button on a control knob 16.
  • the user of the communication device 4 only has the option of connecting it again, for example, to an accumulator charging station, not shown, or at least switching it off within the last operating minute in order to avoid a total discharge of the accumulator 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)

Claims (13)

  1. Procédé de communication avec une installation ( 2 ), notamment pour commander et observer une installation d'automatisation dans la fabrication industrielle, dans lequel on détermine, pour un appareil ( 4 ) de communication fonctionnant sur batterie et destiné à échanger des données avec l'installation ( 2 ), l'état de charge de la batterie ( 22 ),
    caractérisé
    en ce que l'on détermine, à partir de l'état de charge, le temps de fonctionnement restant prévisible de l'appareil ( 4 ) de communication et, en fonction du temps de fonctionnement restant qui a été déterminé, on prend une mesure dans l'installation ( 2 ) ou dans l'appareil ( 4 ) de communication,
    dans lequel on bloque sur l'appareil ( 4 ) de communication les fonctions qui sont destinées à déclencher dans l'installation ( 2 ) des opérations qui ne peuvent pas se terminer dans le temps de fonctionnement restant.
  2. Procédé suivant la revendication 1, dans lequel on prescrit une valeur de seuil pour le temps de fonctionnement restant et on prend la mesure lorsque la valeur de seuil est atteinte.
  3. Procédé suivant la revendication 1 ou 2, dans lequel comme mesure on indique le temps de fonctionnement restant à un opérateur de l'appareil ( 4 ) de communication.
  4. Procédé suivant l'une des revendications précédentes, dans lequel comme mesure on modifie la fonctionnalité de l'appareil ( 4 ) de communication.
  5. Procédé suivant la revendication 4, dans lequel on prescrit plusieurs valeurs de seuil et on modifie successivement la fonctionnalité lorsque chaque valeur de seuil est atteinte.
  6. Procédé suivant la revendication 4 ou 5, dans lequel on modifie la fonctionnalité de manière à désactiver obligatoirement une fonction d'assentiment pouvant être déclenchée à l'installation ( 2 ) par l'appareil ( 4 ) de communication.
  7. Procédé suivant l'une des revendications 4 à 6, dans lequel on modifie la fonctionnalité de manière à activer obligatoirement une fonction d'arrêt pouvant être déclenchée à l'installation ( 2 ) par l'appareil ( 4 ) de communication.
  8. Dispositif de communication avec une installation ( 2 ), notamment pour la commande et l'observation d'une installation d'automatisation dans la fabrication industrielle, comprenant un appareil ( 4 ) de communication ayant une batterie et destiné à échanger des données avec l'installation ( 2 ), caractérisé par
    un dispositif ( 26 ) de mesure pour la détermination de l'état de charge de la batterie ( 22 ) et du temps de fonctionnement restant prévisible de l'appareil ( 4 ) de communication et un dispositif ( 28 ) de commande, qui coopère avec le dispositif ( 26 ) de mesure et qui est destiné à prendre des mesures dans l'installation ( 2 ) ou dans l'appareil ( 4 ) de communication,
    dans lequel les mesures concernent un blocage des fonctions de l'appareil ( 4 ) de communication, qui sont destinées au déclenchement d'opérations dans l'installation ( 2 ) qui ne peuvent pas se terminer dans la durée de fonctionnement restante.
  9. Dispositif suivant la revendication 8, comprenant un commutateur de valeur de seuil coopérant avec le dispositif ( 26 ) de mesure et avec le dispositif ( 28 ) de commande.
  10. Dispositif suivant la revendication 8 ou 9, comprenant un dispositif ( 14 ) d'indication indiquant le temps de fonctionnement restant.
  11. Dispositif suivant l'une des revendications 8 à 10, comprenant un commutateur ( 33 ) de modification de la fonctionnalité de l'appareil ( 4 ) de communication, qui coopère avec le dispositif ( 28 ) de commande.
  12. Dispositif suivant la revendication 11, comprenant une touche ( 18 ) d'assentiment pouvant être désactivée par le commutateur ( 33 ).
  13. Dispositif suivant la revendication 11 ou 12, comprenant une touche ( 20 ) d'arrêt pouvant être activée par le commutateur ( 33 ).
EP04765503.0A 2003-09-24 2004-09-22 Procede et dispositif de communication avec un systeme Expired - Lifetime EP1665192B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344359A DE10344359A1 (de) 2003-09-24 2003-09-24 Verfahren und Einrichtung zur Kommunikation mit einer Anlage
PCT/EP2004/010641 WO2005031674A1 (fr) 2003-09-24 2004-09-22 Procede et dispositif de communication avec un systeme

Publications (2)

Publication Number Publication Date
EP1665192A1 EP1665192A1 (fr) 2006-06-07
EP1665192B1 true EP1665192B1 (fr) 2013-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765503.0A Expired - Lifetime EP1665192B1 (fr) 2003-09-24 2004-09-22 Procede et dispositif de communication avec un systeme

Country Status (4)

Country Link
US (1) US7424378B2 (fr)
EP (1) EP1665192B1 (fr)
DE (1) DE10344359A1 (fr)
WO (1) WO2005031674A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4080494B2 (ja) * 2005-06-10 2008-04-23 ファナック株式会社 ロボット制御装置
DE102008043212A1 (de) * 2008-10-28 2010-04-29 Robert Bosch Gmbh Energieverbrauchsausgabevorrichtung und Verfahren zur Ausgabe einer noch verbleibenden Nutzungsmöglichkeit
DE102009031828A1 (de) * 2009-07-03 2011-01-05 Vodafone Holding Gmbh Batterieladestatusanzeige für ein Benutzerendgerät
JP6095361B2 (ja) * 2012-12-26 2017-03-15 株式会社ダイヘン ロボット制御システム
US9865029B2 (en) 2016-04-06 2018-01-09 Yokogawa Electric Corporation Contextual rendering of process graphics

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5587924A (en) 1995-03-31 1996-12-24 Compaq Computer Corporation Automatic system for handling batteries
TW510977B (en) * 2000-03-13 2002-11-21 Nippon Telegraph & Telephone Capacity estimation method, degradation estimation method and degradation estimation apparatus for lithium-ion cells, and lithium-ion batteries
EP1347705B1 (fr) 2000-12-21 2005-12-07 Insulet Corporation Commande a distance d'appareil medicaux
US6965309B1 (en) * 2003-04-08 2005-11-15 At&T Corp. Alarm data delivery method

Also Published As

Publication number Publication date
EP1665192A1 (fr) 2006-06-07
US20070078615A1 (en) 2007-04-05
US7424378B2 (en) 2008-09-09
WO2005031674A1 (fr) 2005-04-07
DE10344359A1 (de) 2005-05-12

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