Casestudie Breakdown prediction Contell PILOT - Transumo

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possibility to send several kinds of local and remote messages like SMS or E-Mail. Furthermore, additional local hardware like sirens or flashlights can be controlled. To enhance the value of these possibilities XiltriX offers alarm-, SMS- and E-Mailprograms to offer a comfortable way of configuration for every single monitored device. Alarm-programs enable the person in charge to define the alarming behavior of additional attached hardware. Up to eight different programs per department can be configured. Similar to the time dependent limit setting from section 3.3.2 an alarmprogram schedules different types of alarm relays. These relays have to be configured in advance. Figure 3-9 exemplifies a configuration for a locally installed flashlight. Figure 3-9: XiltriX - Setting up an Alarm Relay [DEMO06] Each configuration contains settings about the kind of alarm and one of the following three functions: 1. On continuously 2. On/off once 3. On/off cyclically The first function activates the relay as long as an alarm is activated. An installed flashlight, for instance, would be turned on as long as the alarm is active. The second function also activates the corresponding relay as soon as a critical situation occurs, but it will deactivate the relay again after the expiration of a defined report duration time. This time can be defined between 1 and 99 seconds. Function number three is an extension to the just described one. It also deactivates the relay after the set report duration time, but activates it again after a set delay time as long as the alarm is reset. This delay time can range from 1 to 99 minutes. 34
Aside from these functions, the kind of notified alarm can be influenced. As already explained in section 3.2, XiltriX is able to classify an alarm as technical or master alarm. A technical alarm indicates a malfunction in communication. A master alarm normally goes off, when there is no reaction to a prior alarm. Figure 3-9 introduces the configuration of an installed flashlight. As soon as an alarm, caused by the monitored device, goes off, the flashlight turns on for ten seconds, turns off for one minute and turns on again. In case of a technical or a master alarm 1 or 2, the flashlight will also signalize the current situation as soon as the defined delay times between 5 and 15 minutes are exceeded. Beside the just introduced alarm-programs for local notification hardware, XiltriX also offers functionality to notify persons in charge by the mean of SMS or E-Mail. Therefore, additionally available modules have to be attached to the system. The notification via e-mail and SMS is quite simple. It is possible to configure a list with up to three responsible employees each. As soon as an alarm goes off, the first person will be notified. After a definable delay time, the second one will be notified in case of a still activated alarm. As long as no reset of an alarm is done, XiltriX will continue to notify these three people one after another. To allow an easy setup, XiltriX offers the possibility to create 16 configurations each. These configurations can be scheduled like the time dependent limits from section 3.3.2, so that the system always notifies the currently responsible employees. 3.4 Review of XiltriX According to the Requirements Analysis The previous sections introduced basic and additional features as well as some technical basis of XiltriX. Especially the additional features intended to solve the existing methodological problems. Time dependent limits, for example, are able to reduce the number of alarms at daytime by choosing limits with a higher span. At night, the span can be reduced to achieve a lower probability of an error of second kind. 24 Furthermore, the system is not only able to alarm locally, but also by the use of E-Mail and SMS. Features like that are meant to improve the lack of information problem. 25 24 See section 2.4 for details 25 See section 2.4.1 for details 35
Page 1 and 2: Technische Universität Braunschwei
Page 3 and 4: 4.4 Review of Current State of Rese
Page 5 and 6: Index of Tables Table 2-1: Error of
Page 7 and 8: 1 Introduction 1.1 Initial Position
Page 9 and 10: 2 Sensor Based Temperature Monitori
Page 11 and 12: compressor. They are served by a ce
Page 13 and 14: the specified value, it works very
Page 15 and 16: of this, over a hundred irregular p
Page 17 and 18: a centralized one. An isolated appl
Page 19 and 20: Figure 2-8: Lack of Information Pro
Page 21 and 22: Moreover, the fridge’s filling le
Page 23 and 24: store this kind of data but only of
Page 25 and 26: 3 Current Monitoring Systems The la
Page 27 and 28: device’s condition. Especially th
Page 29 and 30: a converter that is also available
Page 31 and 32: To indicate important events within
Page 33 and 34: 1. Display stored data in table for
Page 35 and 36: This way of visualizing data is the
Page 37 and 38: free text. Moreover it is possible
Page 39: dependent limit and delay settings,
Page 43 and 44: 1. Temperature verification in retr
Page 45 and 46: alarms by the use of additionally a
Page 47 and 48: The third mentioned Centron Environ
Page 49 and 50: 4 Current State of Research As alre
Page 51 and 52: even this improvement is still face
Page 53 and 54: Another current approach is regress
Page 55 and 56: S o n 2 = ∑ Yi −Yi n −1 i= 2
Page 57 and 58: This algorithm returns an upper and
Page 59 and 60: • Critical values • Pre-warning
Page 61 and 62: 5 Possible and Promising Ways of Da
Page 63 and 64: could be: “The mean increase of a
Page 65 and 66: The mode is the most frequent value
Page 67 and 68: Figure 5-1: Two Samples of Regressi
Page 69 and 70: 5.4.2 The Major Problems of Regress
Page 71 and 72: The next section will introduce tim
Page 73 and 74: explained in section 5.4. If such a
Page 75 and 76: pictured in Formula 5-12. Beside a
Page 77 and 78: P ( m) = P ( r ) ⋅ P ( m−r ) wi
Page 79 and 80: But the greatest problem is again t
Page 81 and 82: clustering as well as an analysis o
Page 83 and 84: The general idea of supervised lear
Page 85 and 86: sometimes data of a door opening se
Page 87 and 88: Beside the introduced notification
Page 89 and 90: A classification could be achieved
Page 91 and 92:
Table 5-1: Estimated Improvements A
Page 93 and 94:
As all these software products fail
Page 95 and 96:
6.2 Case Study The UMC St. Radboud
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Figure 6-3: Maximum Values at Dayti
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Figure 6-5: Minimum Values at Dayti
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Figure 6-9: Standard Deviation at D
Page 103 and 104:
Table 6-3: Reported Notifications (
Page 105 and 106:
Important for the determination of
Page 107 and 108:
Remarkable is a comparison to the a
Page 109 and 110:
Interviews with several employees f
Page 111 and 112:
7 Summary Cooling devices within me
Page 113 and 114:
Bibliography Books and Articles: [B
Page 115 and 116:
[Wittenberg98] Reinhard Wittenberg,
Page 117 and 118:
Appendix 1 - Implementation of Inte
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%Name and location of the source fi
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Appendix 2 - Implementation of Stat
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dailydate = [dailydate; floor(date(
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%Count Dooropenings per Day dailydo
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xlswrite(strcat(path, 'Excel\', fil
Page 129 and 130:
print('-dtiff', strcat(path, 'Graph
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ar([dailydate(1):dailydate(length(s
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Appendix 3 - Implementation of Data
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Duration = 0; maxtemp = 0; elseif (
Page 137 and 138:
%Contains [Duration, Number of Occu
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disp(strcat('Dooropening
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