EP0566716B1 - Arrangement for recording car driving data with a time resolution adapted to the shape of analog measurement signals - Google Patents
Arrangement for recording car driving data with a time resolution adapted to the shape of analog measurement signals Download PDFInfo
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- EP0566716B1 EP0566716B1 EP92922846A EP92922846A EP0566716B1 EP 0566716 B1 EP0566716 B1 EP 0566716B1 EP 92922846 A EP92922846 A EP 92922846A EP 92922846 A EP92922846 A EP 92922846A EP 0566716 B1 EP0566716 B1 EP 0566716B1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
Definitions
- the invention relates to an arrangement according to the preamble of the main claim. It is based on a device according to the teaching of GB 2 046 914 A, according to which an analog measurement signal is digitized and fed to a memory arrangement consisting of several shift registers, the measured values being stored in each shift register at a different clock rate.
- a data acquisition device for the registration of driving data which should make the course of the accident verifiable by reconstructing the movement path of the vehicle, in particular with regard to accident situations for an objective clarification of the question of guilt, is essentially with two by the measurement signals of its sensors, which continuously record the driving dynamics of the vehicle significantly different waveforms.
- GB 2 055 469 A discloses an accident data memory as a ring memory, in which after detection of the standstill, a time delay is activated before the data storage is interrupted, for example to prevent the accident data storage from ending too early when the vehicle is moving with blocked wheels.
- the invention is based on the object of designing known arrangements for registering driving data in such a way that, taking into account the limited storage capacity, a high temporal resolution of the signal form of the analog measurement signal is ensured in the initial phase when an accident occurs.
- the solution according to the invention ensures that the data permanently read into the ring buffer with both frequencies ensures that the measurement signals of an accident situation are recorded with a high sampling rate as soon as they occur. No frequency jump is triggered by the accident detection.
- the selected memory controller also has the advantage that the data that were pending shortly before the accident event are also recorded with a high resolution. Since the storage of the measurement signals in the ring memory clocked with the higher frequency stopped immediately at the time of the accident detection the data stored over the loop duration is retained. This advantage in particular decisively improves the meaningfulness of the data recorded with the data acquisition device, since a reconstruction of the movement path of the vehicle is made possible much better by means of finely structured measurement data. Because it is precisely in the unambiguous, as complete as possible, showing the course of the accident that the purpose of this data recording is.
- an analog measurement signal 1 z. B. the longitudinal or lateral acceleration of the vehicle, plotted on the time axis 2, the ordinate 3 indicating the amount of the signal 1.
- the absolute value of the measurement signal is relatively small; the amplitude fluctuations are also relatively slow. If an accident now occurs, the magnitude of the measurement signal 1 changes abruptly, as a result of which a defined threshold 5 for triggering the memory controller according to the invention is exceeded and the accident event is recognized as such by the device.
- the accident detection can also include criteria and arithmetic operations which go beyond this simple threshold value exceeding.
- links to other sensor signals can also be used for accident detection.
- the memory controller according to the invention could also be operated manually by actuating an operating element, e.g. B. the hazard warning lights are triggered. It is crucial that the accident event is recognized as such and this detection triggers the sequence of the memory control according to the invention.
- the actual collision phase 7 is a part time of the accident recording time 6 and is recorded in addition to the normal data recording in the fast clocked data storage branch with high resolution.
- the higher-level accident recording time 6 ends either when the vehicle is at a standstill 10, characterized by the absence of the analog measurement signal 1, or after a specified follow-up time 9, which begins when the trigger signal 25 occurs.
- the accident record time 6, the total z. B. 45 seconds, is composed of a period 8 before the trigger signal 25 occurs and a follow-up time 9.
- a low-frequency sampling rate 11 (with the frequency f1) of the analog measuring signals 1 permanently detected by the sensory measuring device is sufficient for the data storage, since the storage of more measuring points 13 does not usably increase the information content.
- as many measuring points 13 as possible should be permanently stored at the higher sampling rate 12 predetermined by the frequency f2.
- Fig. 2 illustrates the memory control.
- Analog measuring signals 1 are continuously detected by the sensory measuring device of the data acquisition device and passed through an A / D converter 21. These digitized measurement signals are fed - either directly or combined with other time-synchronously acquired digital signals 20 into data words - to at least two ring memories 22 and 23 arranged in parallel, which read the data words in a different cycle.
- the respective clock frequencies f1 and f2, where f1 is the storage frequency for the ring buffer 22 and f2 for the ring buffer 23, are specified by a control unit 24.
- sampling frequencies f1 and f2 are different and should be selected so that f1 is suitable for sampling the low-frequency measurement signals of normal driving and that f2 is correspondingly higher in frequency in order to enable a high resolution of the high-frequency measurement signals which arise in accident situations. It has proven expedient to choose f1 at 25 Hz and f2 at 500 Hz.
- the control unit 24 triggers a trigger signal 25 which stops the continuous scanning and storage of the measurement signals in the ring memories 22 and 23.
- This stopping of the storage of the measurement signals in the ring memories 22 and 23 - and thus the preservation of the memory contents - takes place for both memories according to different criteria and at different times.
- the stopping of the storage in the ring memory 22, which stores the measurement signals at the lower frequency f1 is delayed so that the recording in this memory ends when the vehicle has come to a standstill 10 or at the latest after the specified follow-up time 9 has expired.
- This follow-up time 9 can be set at approximately 15 seconds to record what is happening after the actual accident.
- This storage takes place as long as the trigger signal 25 characterizing the accident situation is present. If the trigger signal 25 goes out, the memory 26 also ends the high-frequency data storage in the preferred embodiment with a time delay after a short follow-up time 14, for which 100 ms have proven to be sufficient.
- the recording duration of the memory 26 being composed of the duration of the trigger signal 25 corresponding to the collision phase 7 and a specified follow-up time 14.
- time periods 14 and 15 in FIG. 1 are correctly drawn in relation to the duration of the collision phase 7, but there are actually a large number of measuring points 13 in these time periods 14 and 15. In the preferred embodiment, there are approximately 50 measuring points each .
- This finely structured driving data can be assigned to the coarse grid of the data stored in the ring memory 22 such that when the trigger signal 25 occurs in both ring memories 22 and 23, the current time, if the data acquisition device is equipped with a real-time clock, or another suitable marking can be saved with.
- the stored data are evaluated later, it is possible to relate the two time patterns formed by the different sampling frequencies f1 and f2 to one another.
- the rapidly clocked data storage branch consisting of the ring memory 23 and the semiconductor memory 26, is executed multiple times in order to achieve several bumping events that occur within the follow-up time 9 that is assigned to the higher-level ring memory 22 and their duration in relation to the Follow-up time 9 are very short, to be able to record individually.
- Each new push process then activates the next parallel data storage branch as often as there is still a free data storage branch of this type.
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Abstract
Description
Die Erfindung betrifft eine Anordnung gemäß dem Oberbegriff des Hauptanspruchs. Sie geht aus von einer Vorrichtung gemäß der Lehre aus GB 2 046 914 A, wonach ein analoges Meßsignal digitalisiert und einer aus mehreren Schieberegistern bestehenden Speicheranordnung zugeführt wird, wobei die Meßwerte in jedem Schieberegister mit einer anderen Taktrate gespeichert werden.The invention relates to an arrangement according to the preamble of the main claim. It is based on a device according to the teaching of
Ein Datenerfassungsgerät zur Registrierung von Fahrdaten, die insbesondere im Hinblick auf Unfallsituationen für eine objektive Klärung der Schuldfrage den Unfallhergang durch Rekonstruktion der Bewegungsbahn des Fahrzeugs beweisbar machen sollen, wird durch die Meßsignale seiner Sensoren, die die Fahrdynamik des Fahrzeugs fortlaufend erfassen, im wesentlichen mit zwei signifikant unterschiedlichen Signalformen beaufschlagt.A data acquisition device for the registration of driving data, which should make the course of the accident verifiable by reconstructing the movement path of the vehicle, in particular with regard to accident situations for an objective clarification of the question of guilt, is essentially with two by the measurement signals of its sensors, which continuously record the driving dynamics of the vehicle significantly different waveforms.
Im normalen Fahrbetrieb werden überwiegend niederfrequente Signale mit relativ kleiner Signalamplitude erfaßt, die in der Regel über einen größeren Zeitraum aufzuzeichnen sind, wohingegen sich eine Unfallsituation dadurch auszeichnet, daß meist bedingt durch einen Stoßvorgang während eines kurzen Zeitraums höherfrequente Signale mit verhältnismäßig großer Signalamplitude zur Registrierung anstehen.In normal driving, predominantly low-frequency signals with a relatively small signal amplitude are recorded, which are usually to be recorded over a longer period of time, whereas an accident situation is characterized in that higher-frequency signals with a relatively large signal amplitude are usually pending for a short period due to a collision process .
Da zum einen an ein derartiges Datenerfassungsgerät die Anforderung zu stellen ist, möglichst viele Daten aufzeichnen zu können, andererseits aber gerade bei einem kostensensiblen, für die breite Anwendung bestimmten fahrzeugtauglichen Gerät die Speicherkapazität in einem wirtschaftlich vertretbaren Rahmen gehalten werden muß, ergibt sich die Notwendigkeit, nach Anordnungen zu suchen, die eine Lösung für diese gegensätzlichen Forderungen aufzeigen.Since, on the one hand, the requirement for such a data acquisition device is to be able to record as much data as possible, but on the other hand, especially in the case of a cost-sensitive vehicle-compatible device intended for wide use, the storage capacity must be kept within an economically justifiable framework, to look for orders that show a solution to these conflicting demands.
Aus der EP-118 818 B1 ist bekannt, daß die von einem Unfalldatenschreiber sensorisch erfaßten Meßsignale in einem festen Takt abgetastet und als Fahrdaten abgespeichert werden. Eine fest eingestellte Taktfrequenz kann jedoch den oben genannten Forderungen nicht gerecht werden. Eine einzige für den normalen Fahrbetrieb gewählte Taktfrequenz kann eine Unfallsituation, deren signifikante, analoge Meßsignale meist nur weniger als 1 Sek. anstehen, nicht ausreichend genau erfassen, weil die Auflösung, d. h. die Anzahl der zur Abspeicherung gelangenden Meßpunkte zu gering ist. Würde man hingegen ständig eine hohe Abtastrate wählen, erhielte man eine kaum sinnvolle Datenflut, die nur aufwendig zu handhaben ist.It is known from EP-118 818 B1 that the measurement signals sensed by an accident data recorder are sampled in a fixed cycle and stored as driving data. However, a fixed clock frequency cannot meet the requirements mentioned above. One for the The clock frequency selected during normal driving cannot adequately record an accident situation, the significant, analog measurement signals of which are usually only present for less than 1 second, because the resolution, ie the number of measurement points to be saved, is too low. If, on the other hand, you would constantly choose a high sampling rate, you would get a hardly sensible flood of data, which is difficult to handle.
Ferner ist aus GB 2 055 469 A ein Unfalldatenspeicher als Ringspeicher bekannt, bei dem nach Erkennen des Stillstands noch eine Zeitverzögerung aktiviert wird, bevor die Datenspeicherung unterbrochen wird, um etwa eine zu frühe Beendigung der Unfalldatenspeicherung bei Fortbewegung des Fahrzeugs mit blockierten Rädern zu verhindern.Furthermore,
Es mag nun der Gedanke aufkommen, die Abtastrate beim Eintritt des Unfallereignisses einfach angemessen zu erhöhen. Jedoch hat diese Maßnahme den erheblichen Nachteil, daß durch die unvermeidbare Reaktionszeit für den Frequenzsprung, die sich aus der benötigten Dauer zur Erkennung des Unfallereignisses, den elektronischen Signallaufzeiten und der Anschwingphase für die höhere Abtastfrequenz ergibt, gerade die Meßsignale der Anfangsphase des Unfallereignisses nicht hochauflösend erfaßt werden können.The idea may now arise of simply increasing the sampling rate appropriately when the accident occurs. However, this measure has the considerable disadvantage that due to the unavoidable response time for the frequency jump, which results from the time required to detect the accident event, the electronic signal propagation times and the start-up phase for the higher sampling frequency, the measurement signals of the initial phase of the accident event are not recorded in high resolution can be.
Der Erfindung liegt nun die Aufgabe zugrunde, bekannte Anordnungen zur Registrierung von Fahrdaten so auszubilden, daß unter Berücksichtigung der begrenzten Speicherkapazität eine hohe zeitliche Auflösung der Signalform des analogen Meßsignals bei Auftreten eines Unfallereignisses bereits in dessen Anfangsphase sichergestellt ist.The invention is based on the object of designing known arrangements for registering driving data in such a way that, taking into account the limited storage capacity, a high temporal resolution of the signal form of the analog measurement signal is ensured in the initial phase when an accident occurs.
Die Aufgabe wird durch die Merkmale des ersten Anspruchs gelöst. Die Unteransprüche zeigen vorteilhafte Weiterbildungen.The object is achieved by the features of the first claim. The subclaims show advantageous developments.
Die erfindungsgemäße Lösung stellt durch die permanent mit beiden Frequenzen in die Ringspeicher eingelesenen Daten sicher, daß die Meßsignale einer Unfallsituation bereits im Zeitpunkt ihres Entstehens mit einer hohen Abtastrate erfaßt werden. Durch die Unfalldetektion wird also kein Frequenzsprung ausgelöst. Die gewählte Speichersteuerung hat darüber hinaus den Vorteil, daß auch die Daten, die kurz vor dem Unfallereignis anstanden, ebenfalls mit einer hohen Auflösung erfaßt werden. Da die Speicherung der Meßsignale im mit der höheren Frequenz getakteten Ringspeicher zum Zeitpunkt der Unfallerkennung sofort angehalten wird, bleiben damit die über die Schleifendauer gespeicherten Daten erhalten. Gerade dieser Vorteil verbessert in entscheidender Weise die Aussagekraft der mit dem Datenerfassungsgerät erfaßten Daten, da eine Rekonstruktion der Bewegungsbahn des Fahrzeugs durch fein strukturierte Meßdaten erheblich besser möglich wird. Denn gerade im unzweideutigen, möglichst lückenlosen Aufzeigen des Unfallhergangs besteht der Sinn und Zweck dieser Datenaufzeichnung.The solution according to the invention ensures that the data permanently read into the ring buffer with both frequencies ensures that the measurement signals of an accident situation are recorded with a high sampling rate as soon as they occur. No frequency jump is triggered by the accident detection. The selected memory controller also has the advantage that the data that were pending shortly before the accident event are also recorded with a high resolution. Since the storage of the measurement signals in the ring memory clocked with the higher frequency stopped immediately at the time of the accident detection the data stored over the loop duration is retained. This advantage in particular decisively improves the meaningfulness of the data recorded with the data acquisition device, since a reconstruction of the movement path of the vehicle is made possible much better by means of finely structured measurement data. Because it is precisely in the unambiguous, as complete as possible, showing the course of the accident that the purpose of this data recording is.
Anhand von zwei Zeichnungen soll die Erfindung näher erläutert werden. Es zeigen
- Fig. 1 die typischen zu detektierenden Signalformen;
- Fig. 2 ein vereinfachtes Blockschaltbild der Speichersteuerung.
- 1 shows the typical waveforms to be detected;
- Fig. 2 is a simplified block diagram of the memory controller.
In Fig. 1 ist ein analoges Meßsignal 1, z. B. die Längs- oder Querbeschleunigung des Fahrzeugs, auf der Zeitachse 2 aufgetragen, wobei die Ordinate 3 den Betrag des Signals 1 angibt. Im normalen Fahrbetrieb, d. h. im Zeitabschnitt 4, ist der Absolutbetrag des Meßsignals verhältnismäßig gering; auch die Amplitudenschwankungen verlaufen relativ langsam. Kommt es nun zu einem Unfall, ändert sich der Betrag des Meßsignals 1 sprunghaft, wodurch eine festgelegte Schwelle 5 zur Auslösung der erfindungsgemäßen Speichersteuerung überschritten und das Unfallereignis als solches vom Gerät erkannt wird.In Fig. 1, an analog measurement signal 1, z. B. the longitudinal or lateral acceleration of the vehicle, plotted on the
Es soll erwähnt werden, was der Einfachheit halber jedoch nicht ausführlich beschrieben wird, daß die Unfallerkennung auch Kriterien und Rechenoperationen einschließen kann, die über diese einfache Schwellwertüberschreitung hinausgehen. Für die Unfallerkennung können beispielsweise auch Verknüpfungen mit anderen Sensorsignalen herangezogen werden. Zusätzlich zur automatischen Unfallerkennung könnte die erfindungsgemäße Speichersteuerung auch manuell durch Betätigen eines Bedienelementes, z. B. der Warnblinkanlage, ausgelöst werden. Entscheidend ist, daß das Unfallereignis als solches erkannt wird und diese Erkennung den Ablauf der erfindungsgemäßen Speichersteuerung auslöst.It should be mentioned, which, however, is not described in detail for the sake of simplicity, that the accident detection can also include criteria and arithmetic operations which go beyond this simple threshold value exceeding. For example, links to other sensor signals can also be used for accident detection. In addition to automatic accident detection, the memory controller according to the invention could also be operated manually by actuating an operating element, e.g. B. the hazard warning lights are triggered. It is crucial that the accident event is recognized as such and this detection triggers the sequence of the memory control according to the invention.
Die eigentliche Kollisionsphase 7 ist eine Teilzeit der Unfallaufzeichnungszeit 6 und wird zusätzlich zur normalen Datenaufzeichnung noch im schnell getakteten Datenspeicherungszweig mit hoher Auflösung aufgezeichnet. Die übergeordnete Unfallaufzeichnungszeit 6 endet entweder mit dem Stillstand 10 des Fahrzeugs, gekennzeichnet durch das Ausbleiben des analogen Meßsignals 1 oder nach Ablauf einer festgesetzten Nachlaufzeit 9, die mit dem Zeitpunkt des Eintretens des Auslösesignals 25 beginnt. Die Unfallaufzeichnungszeit 6, die insgesamt z. B. 45 Sekunden betragen kann, setzt-sich damit aus einem Zeitabschnitt 8 vor dem Eintreten des Auslösesignals 25 und einer Nachlaufzeit 9 zusammen. Im normalen Fahrbetrieb genügt für die Datenspeicherung eine niederfrequente Abtastrate 11 (mit der Frequenz f1) der permanent von der sensorischen Meßeinrichtung erfaßten analogen Meßsignale 1, da die Abspeicherung von mehr Meßpunkten 13 den Informationsgehalt nicht in brauchbarer Weise erhöht. Jedoch während des eigentlichen Unfallereignisses sollen möglichst viele Meßpunkte 13 mit der durch die Frequenz f2 vorgegebenen höheren Abtastrate 12 bleibend abgespeichert werden.The
Fig. 2 verdeutlicht die Speichersteuerung. Von der sensorischen Meßeinrichtung des Datenerfassungsgerätes werden kontinuierlich analoge Meßsignale 1 erfaßt und über einen A/D-Wandler 21 geführt. Diese digitalisierten Meßsignale werden - entweder direkt oder mit anderen zeitsynchron erfaßten, digitalen Signalen 20 zu Datenwörtern vereinigt - mindestens zwei parallel angeordneten Ringspeichern 22 und 23 zugeführt, die in einem unterschiedlichen Takt die Datenwörter einlesen. Die jeweiligen Taktfrequenzen f1 und f2, wobei f1 die Speicherfrequenz für den Ringspeicher 22 und f2 die für den Ringspeicher 23 bedeutet, werden von einer Steuereinheit 24 vorgegeben. Die Abtastfrequenzen f1 und f2 sind verschieden und sollen so gewählt sein, daß f1 geeignet ist, die niederfrequenten Meßsignale des normalen Fahrbetriebs abzutasten und daß f2 entsprechend höherfrequent ist, um eine hohe Auflösung der in Unfallsituationen entstehenden hochfrequenteren Meßsignale zu ermöglichen. Es hat sich als zweckmäßig erwiesen, f1 zu 25 Hz und f2 zu 500 Hz zu wählen.Fig. 2 illustrates the memory control. Analog measuring signals 1 are continuously detected by the sensory measuring device of the data acquisition device and passed through an A /
Bei der Erkennung eines Unfallereignisses löst die Steuereinheit 24 ein Auslösesignal 25 aus, das die fortlaufende Abtastung und Speicherung der Meßsignale in den Ringspeichern 22 und 23 stoppt. Dieses Stoppen der Speicherung der Meßsignale in den Ringspeichern 22 und 23 - und damit das Konservieren der Speicherinhalte - erfolgt für beide Speicher nach unterschiedlichen Kriterien und zu unterschiedlichen Zeiten. Das Anhalten der Speicherung im Ringspeicher 22, der mit der niederen Frequenz f1 die Meßsignale speichert, wird zeitlich verzögert, so daß die Aufzeichnung in diesem Speicher mit dem Stillstand 10 des Fahrzeugs oder spätestens nach Ablauf der festgelegten Nachlaufzeit 9 endet. Diese Nachlaufzeit 9 kann zur Erfassung des Geschehens nach dem eigentlichen Unfall auf ca. 15 Sekunden festgelegt werden. Beim Eintreffen des Auslösesignals 25 wird die Speicherung der Meßsignale im Ringspeicher 23, der mit der hohen Frequenz f2 speichert, angehalten und die nachfolgenden Daten werden mit der Frequenz f2 in einen weiteren, parallel angeordneten, elektronischen Halbleiterspeicher 26, der kein Ringspeicher ist, eingelesen. Diese Speicherung erfolgt solange, wie das die Unfallsituation kennzeichnende Auslösesignal 25 anliegt. Erlischt das Auslösesignal 25, beendet der Speicher 26 die hochfrequente Datenabspeicherung in der bevorzugten Ausführung auch zeitverzögert nach einer kurzen Nachlaufzeit 14, für die sich 100 ms als ausreichend erwiesen haben. Dadurch stehen hochfrequent abgetastete Fahrdaten über die Schleifendauer 15 des Ringspeichers 23 und die Aufzeichnungsdauer des Speichers 26 zur Verfügung, wobei sich die Aufzeichnungsdauer des Speichers 26 aus der der Kollisionsphase 7 entsprechenden Dauer des Auslösesignals 25 und einer festgelegten Nachlaufzeit 14 zusammensetzt.When an accident event is detected, the
Der Übersichtlichkeit halber sind die Zeitabschnitte 14 und 15 in Fig. 1 zwar größenordnungsmäßig richtig im Verhältnis zur Dauer der Kollisionsphase 7 eingezeichnet, jedoch liegen in diesen Zeitabschnitten 14 und 15 tatsächlich eine Vielzahl von Meßpunkten 13. In der bevorzugten Ausführung sind es jeweils etwa 50 Meßpunkte.For the sake of clarity, the
Diese fein strukturierten Fahrdaten können derart dem groben Raster der im Ringspeicher 22 abgelegten Daten zeitlich zugeordnet werden, daß beim Eintreten des Auslösesignals 25 in beiden Ringspeichern 22 und 23 jeweils die aktuelle Uhrzeit, falls das Datenerfassungsgerät mit einer Echtzeituhr ausgerüstet ist, oder eine andere geeignete Markierung mit abgespeichert werden. Dadurch ist es bei der späteren Auswertung der gespeicherten Daten möglich, beide durch die unterschiedlichen Abtastfrequenzen f1 und f2 gebildeten Zeitraster miteinanander in Beziehung zu setzen.This finely structured driving data can be assigned to the coarse grid of the data stored in the
Zur Registrierung von Folgeunfällen kann die hier beschriebene Anordnung in dem Datenerfassungsgerät mehrfach ausgeführt sein. Insbesondere ist in der bevorzugten Ausführungsform der schnell getaktete Datenspeicherungszweig, bestehend aus dem Ringspeicher 23 und dem Halbleiterspeicher 26, mehrfach ausgeführt, um mehrere Stoßvorgänge, die sich innerhalb der Nachlaufzeit 9, die dem übergeordneten Ringspeicher 22 zugeordnet ist, ereignen und deren Dauer im Verhältnis zur Nachlaufzeit 9 sehr kurz sind, jeweils einzeln aufzeichnen zu können. Jeder neue Stoßvorgang aktiviert dann den nächsten parallelen Datenspeicherungszweig, sooft noch ein freier Datenspeicherungszweig dieser Art vorhanden ist.The arrangement described here can be implemented multiple times in the data acquisition device in order to register subsequent accidents. In particular, in the preferred embodiment, the rapidly clocked data storage branch, consisting of the
Claims (5)
- An arrangement for recording travel data having a time resolution matching the signal form of analog measurement signals, wherethe analog measurement signals (1), which are continuously detected by a sensor measuring device of a data capture device for the purpose of recording the movement of a vehicle, after being digitalized in an A/D converter (21) are continuously scanned by a control unit (24) at two different frequencies (f1; f2) and are stored in two ring stores (22; 23) which cycle at the frequencies (f1; f2) and are arranged in parallel,characterized in thatwhen an accident is recognized the control unit (24), as a result of a triggering signal (25), stops in delayed manner the storage of the measurement signals in the ring store (22) which cycles at the low frequency (f1), as a result of which the storage of measurement data in the ring store (22) is ceased after a following period (9) or by the vehicle coming to a standstill (10), and in thatwhen the triggering signal (25) occurs the control unit (24) also interrupts the further storage of the measurement signals in the ring store (23) which cycles at the higher frequency (f2) and brings about the storage of the measurement signals in a further semiconductor store (26) which is arranged parallel to the ring store (23) and cycles at the higher frequency (f2), for the period in which the triggering signal (25) is present, and, where appropriate, in addition to a fixed following period (14) after the triggering signal (25) has died away.
- An arrangement according to Claim 1, characterized in that when the triggering signal (25) occurs a marker is set in the two ring stores (22 and 23) for correlating their data contents.
- An arrangement according to Claim 1 or 2, characterized in that the data storage branch, which cycles at the higher frequency (f2) and comprises the ring store (23) and the semiconductor store (26), is constructed in parallel a number of times within the arrangement, in each case the next data storage branch of this type which is still free being activated by a new impact occurring within the following period (9).
- An arrangement according to one of the preceding claims, characterized in that the entire arrangement for recording sequential accidents is constructed in the same way a number of times in the data capture device.
- An arrangement according to Claim 1 or 2, characterized in that the triggering signal (25) is, in addition to automatic triggering, triggered manually by actuating an accident-relevant operating element.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4136968 | 1991-11-11 | ||
| DE4136968A DE4136968C1 (en) | 1991-11-11 | 1991-11-11 | |
| PCT/EP1992/002529 WO1993010510A1 (en) | 1991-11-11 | 1992-11-04 | Arrangement for recording car driving data with a time resolution adapted to the shape of analog measurement signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0566716A1 EP0566716A1 (en) | 1993-10-27 |
| EP0566716B1 true EP0566716B1 (en) | 1996-03-27 |
Family
ID=6444476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92922846A Expired - Lifetime EP0566716B1 (en) | 1991-11-11 | 1992-11-04 | Arrangement for recording car driving data with a time resolution adapted to the shape of analog measurement signals |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US5412570A (en) |
| EP (1) | EP0566716B1 (en) |
| JP (1) | JPH0769193B2 (en) |
| KR (1) | KR100206605B1 (en) |
| AR (1) | AR247452A1 (en) |
| AT (1) | ATE136137T1 (en) |
| AU (1) | AU661735B2 (en) |
| CA (1) | CA2098709A1 (en) |
| CZ (1) | CZ280371B6 (en) |
| DE (1) | DE4136968C1 (en) |
| FI (1) | FI933153A0 (en) |
| HU (1) | HU215325B (en) |
| IL (1) | IL103697A (en) |
| MX (1) | MX9206445A (en) |
| PL (1) | PL169679B1 (en) |
| SK (1) | SK72893A3 (en) |
| WO (1) | WO1993010510A1 (en) |
| ZA (1) | ZA928701B (en) |
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| DE4237365A1 (en) * | 1992-11-05 | 1994-05-11 | Mannesmann Kienzle Gmbh | Method and arrangement for storing measurement data in a registration device |
| DE4303470C1 (en) * | 1993-02-06 | 1994-02-17 | Mannesmann Kienzle Gmbh | Accident data recorder for road vehicle - analyses amplitude and duration of acceleration signals, and is held in active condition with increased sensitivity level for limited period after vehicle engine is switched off |
| JP2521024B2 (en) * | 1993-04-20 | 1996-07-31 | 淡路フェリーボート株式会社 | Traffic accident data recorder and traffic accident reproduction system |
| DE4335991A1 (en) * | 1993-10-21 | 1995-04-27 | Telefunken Microelectron | Tripping device for vehicle security systems |
| JP3331036B2 (en) * | 1994-01-13 | 2002-10-07 | 株式会社日立国際電気 | Flight data recorder |
| US5742915A (en) * | 1995-12-13 | 1998-04-21 | Caterpillar Inc. | Position referenced data for monitoring and controlling |
| US8140358B1 (en) | 1996-01-29 | 2012-03-20 | Progressive Casualty Insurance Company | Vehicle monitoring system |
| US8090598B2 (en) * | 1996-01-29 | 2012-01-03 | Progressive Casualty Insurance Company | Monitoring system for determining and communicating a cost of insurance |
| DE19632248C1 (en) * | 1996-08-09 | 1997-12-04 | Siemens Ag | Display device with signal sampling |
| DE29614745U1 (en) * | 1996-08-24 | 1996-11-28 | moto - spezial Motorradhandel und -service GmbH, 72532 Gomadingen | Device for measuring and displaying at least the speed and speed of vehicles |
| DE19716508A1 (en) * | 1997-04-19 | 1998-11-05 | Mannesmann Vdo Ag | Procedure and accident data storage for providing a time-based data record for accident reconstruction |
| DE19909516B4 (en) * | 1999-03-04 | 2008-04-17 | TÜV SÜD Automotive GmbH | Method for making test data of a test procedure visible and test data acquisition evaluation system |
| US6397132B1 (en) | 1999-09-30 | 2002-05-28 | Siemens Automotive Corporation | Electronic thronttle control with accident recordal unit |
| US6628995B1 (en) * | 2000-08-11 | 2003-09-30 | General Electric Company | Method and system for variable flight data collection |
| US6556905B1 (en) | 2000-08-31 | 2003-04-29 | Lisa M. Mittelsteadt | Vehicle supervision and monitoring |
| US7941258B1 (en) | 2000-08-31 | 2011-05-10 | Strategic Design Federation W, Inc. | Automobile monitoring for operation analysis |
| US7584033B2 (en) | 2000-08-31 | 2009-09-01 | Strategic Design Federation W. Inc. | Automobile monitoring for operation analysis |
| DE10046696A1 (en) * | 2000-09-21 | 2002-04-11 | Bosch Gmbh Robert | Vehicle data recording method has data recording density decreasing continuously from momentary detection time point |
| US6825767B2 (en) | 2002-05-08 | 2004-11-30 | Charles Humbard | Subscription system for monitoring user well being |
| US6795759B2 (en) * | 2002-08-26 | 2004-09-21 | International Business Machines Corporation | Secure logging of vehicle data |
| JP4613741B2 (en) * | 2005-08-05 | 2011-01-19 | トヨタ自動車株式会社 | Vehicle data recording device |
| DE102005043335A1 (en) * | 2005-09-12 | 2007-05-16 | Siemens Ag | Arrangement with a tachograph |
| DE102005044703A1 (en) * | 2005-09-19 | 2007-03-29 | Siemens Ag | Data processing system and method of operation |
| DE102006032727A1 (en) * | 2006-07-14 | 2008-01-31 | Lucas Automotive Gmbh | Method and device for checking the plausibility of measured values in the automotive environment |
| JP2008145336A (en) * | 2006-12-12 | 2008-06-26 | Mitsubishi Electric Corp | Device of monitoring sensor detection value |
| US8386730B2 (en) * | 2007-09-11 | 2013-02-26 | Nec Corporation | Data logger, data saving method and program |
| US9916625B2 (en) | 2012-02-02 | 2018-03-13 | Progressive Casualty Insurance Company | Mobile insurance platform system |
| DE102013014879B4 (en) | 2013-09-06 | 2019-11-28 | Audi Ag | Motor vehicle with an accident data storage |
| US20150235323A1 (en) * | 2014-02-19 | 2015-08-20 | Himex Limited | Automated vehicle crash detection |
| DE102016111817A1 (en) * | 2016-06-28 | 2017-12-28 | Prüftechnik Dieter Busch AG | Data collector and device and method for collecting measured data |
| FR3085057B1 (en) * | 2018-08-17 | 2021-08-06 | Psa Automobiles Sa | METHOD FOR MONITORING A VEHICLE MOTORIZATION SYSTEM |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH638329A5 (en) * | 1979-04-12 | 1983-09-15 | Apag Elektronik Ag | METHOD AND DEVICE FOR DETECTING, STORING AND EVALUATING DRIVING DATA. |
| DE2929396A1 (en) * | 1979-07-20 | 1981-01-22 | Moto Meter Ag | TACHOGRAPH FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES |
| US4409670A (en) * | 1981-06-26 | 1983-10-11 | United Technologies Corporation | Solid-state digital flight data recorder |
| IT8243505A0 (en) * | 1982-02-19 | 1982-02-19 | Domenico Colonnelli | CAR BLACK BOX |
| US4533962A (en) * | 1982-08-05 | 1985-08-06 | Decker Ronald R | Vehicle performance detection and recording apparatus |
| US4476116A (en) * | 1982-12-10 | 1984-10-09 | Syntex (U.S.A.) Inc. | Polypeptides/chelating agent nasal compositions having enhanced peptide absorption |
| DE3405757A1 (en) * | 1983-02-26 | 1984-10-04 | Edmund 7016 Gerlingen Zottnik | ACCIDENT RECORDER |
| FR2574928B1 (en) * | 1984-12-19 | 1988-08-26 | France Etat Armement | ANALOGUE PARAMETER RECORDER ON STATIC DIGITAL MEMORY |
| HU206415B (en) * | 1986-12-29 | 1992-10-28 | Karolyne Otta | Method for recording travel data of a motor vehicle into the memory of electronic tachograph, and device for implementing said method |
| US4992943A (en) * | 1989-02-13 | 1991-02-12 | Mccracken Jack J | Apparatus for detecting and storing motor vehicle impact data |
-
1991
- 1991-11-11 DE DE4136968A patent/DE4136968C1/de not_active Expired - Lifetime
-
1992
- 1992-11-04 CA CA002098709A patent/CA2098709A1/en not_active Abandoned
- 1992-11-04 PL PL92299971A patent/PL169679B1/en unknown
- 1992-11-04 HU HU9301833A patent/HU215325B/en not_active IP Right Cessation
- 1992-11-04 WO PCT/EP1992/002529 patent/WO1993010510A1/en active IP Right Grant
- 1992-11-04 AT AT92922846T patent/ATE136137T1/en not_active IP Right Cessation
- 1992-11-04 JP JP5508931A patent/JPH0769193B2/en not_active Expired - Fee Related
- 1992-11-04 CZ CS931386A patent/CZ280371B6/en unknown
- 1992-11-04 EP EP92922846A patent/EP0566716B1/en not_active Expired - Lifetime
- 1992-11-04 AU AU28950/92A patent/AU661735B2/en not_active Ceased
- 1992-11-04 SK SK72893A patent/SK72893A3/en unknown
- 1992-11-04 US US08/081,347 patent/US5412570A/en not_active Expired - Fee Related
- 1992-11-04 KR KR1019930702029A patent/KR100206605B1/en not_active IP Right Cessation
- 1992-11-10 IL IL10369792A patent/IL103697A/en not_active IP Right Cessation
- 1992-11-10 MX MX9206445A patent/MX9206445A/en not_active IP Right Cessation
- 1992-11-11 AR AR92323623A patent/AR247452A1/en active
- 1992-11-11 ZA ZA928701A patent/ZA928701B/en unknown
-
1993
- 1993-07-09 FI FI933153A patent/FI933153A0/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE136137T1 (en) | 1996-04-15 |
| AU661735B2 (en) | 1995-08-03 |
| KR100206605B1 (en) | 1999-07-01 |
| KR930703653A (en) | 1993-11-30 |
| IL103697A (en) | 1995-03-15 |
| HU215325B (en) | 1998-11-30 |
| JPH06500182A (en) | 1994-01-06 |
| CA2098709A1 (en) | 1993-05-12 |
| HUT64149A (en) | 1993-11-29 |
| AU2895092A (en) | 1993-06-15 |
| IL103697A0 (en) | 1993-04-04 |
| SK72893A3 (en) | 1993-10-06 |
| JPH0769193B2 (en) | 1995-07-26 |
| MX9206445A (en) | 1993-05-01 |
| EP0566716A1 (en) | 1993-10-27 |
| DE4136968C1 (en) | 1992-11-12 |
| CZ138693A3 (en) | 1994-05-18 |
| US5412570A (en) | 1995-05-02 |
| ZA928701B (en) | 1993-06-07 |
| FI933153A (en) | 1993-07-09 |
| PL299971A1 (en) | 1994-01-24 |
| FI933153A0 (en) | 1993-07-09 |
| AR247452A1 (en) | 1994-12-29 |
| PL169679B1 (en) | 1996-08-30 |
| CZ280371B6 (en) | 1996-01-17 |
| WO1993010510A1 (en) | 1993-05-27 |
| HU9301833D0 (en) | 1993-10-28 |
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