• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Sensors in a test bench environment must be parametrized in advance. This represents a complex task, which has hitherto largely been carried out manually by a test stand engineer. In order to facilitate the parameterization of a sensor (54), it is proposed to determine the position of the sensor (54) on the test object (1) by means of suitable localization methods and to compare the determined position with the geometry data of the test object (1), from which the position of the sensor (54) is determined. 54) on the test piece (1) can be derived and the sensor (54) from this position on the test piece, the sensor (54) physically measured size can be assigned.
    公开号:AT510674A2
    申请号:T1581/2011
    申请日:2011-10-27
    公开日:2012-05-15
    发明作者:Peter Dipl Ing Priller；Michael Dipl Ing Dr Paulweber；Rupert Mag Fh Fellegger
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    AV-3440 AT
    Method and device for parameterizing a sensor
    The subject invention relates to a method and apparatus for parameterizing a sensor mounted on a device under test in a test stand.
    In test stands for specimens, such as Internal combustion engines, drive trains, vehicles, etc., are usually installed a wealth of sensors to capture the data necessary for the current inspection task. The sensors are attached to specific locations on the device under test and must be parameterized before a measurement to ensure correct measurement. The parameterization includes the assignment of the sensor type to the sensor, ie the assignment of the sensor to its measured physical quantity and the determination of the position of the sensor on the test object, ie the measuring point, e.g. Oil pressure cylinder head left, or exhaust gas temperature before catalyst. Furthermore, the parameterization may also include the assignment of the sensor type, e.g. Type xyz pressure sensor or xyz temperature sensor to allow the measuring system to use the appropriate transfer function of the sensor and thus to deduce from the measured value the physical value applied to the sensor. Likewise, the parameterization may include the assignment of the sensor serial number or a sensor identification or necessary calibration data. These data are mostly in the test bench environment, e.g. at the test bench computer or in the automation system. The parameterization takes place manually, i. that a test bench engineer must make the parameterization of the various sensors individually, that is, assign the required information, which is a complex and error-prone task due to the large number of sensors and the abundance of information to be assigned.
    For this purpose, methods have already become known which tolerate the calibration of sensors. EP 1 300 657 A1 describes e.g. a method in which the calibration data of a sensor are linked to it, so that the calibration can be semi-automatic or automatic. For this purpose, a sensor identifier is stored in the sensor, can be called by means of calibration data from an external memory. Thus, the sensor can be calibrated automatically, so be prepared for the measurement, only that is not yet determined what this sensor measures. For example, can be installed on a combustion engine, multiple pressure sensors, usually of the same type. The pressure sensors can now calibrate automatically and now provide measurement data to the test bench software. However, this does not yet determine from which point on the internal combustion engine the measured values come. This assignment must still be done manually by the test bench engineer. -1-
    It is therefore an object of the present invention, at least to facilitate the parameterization of a sensor over the prior art and to enable at least a partially automatic parameterization.
    This object is achieved by a method and a device in which the sensor 5 transmits information that is detected by a detection device and from a localization method, the position of the sensor is determined in space, the detected sensor position is compared with geometric data of the specimen and by This comparison the position of the sensor is determined on the DUT and the sensor is then parameterized by the localized sensor due to the determined position on the DUT the physically measured by the sensor 10 size is assigned. By automatically determining the sensor position on the test object and the physical size measured by the sensor, the parameterization can already be considerably facilitated. The tester engineer is already given a parameterized sensor, in the form of the assignment of the measured physical quantity to a measuring location, which considerably facilitates the assignment of the sensor type and the specific sensor, since only a small amount remains to be selected.
    If an automatic assignment of sensor position and type of sensor is not possible due to ambiguity in the determined position or the determined physical quantity, a proposal for a manual selection of the correct position or physical size is advantageously offered. This allows the test bench engineer to assign the right type of sensor or sensor position very quickly, which at least facilitates parameterization.
    Preferably, the sensor transmits as information its type of sensor, which makes it possible to remove the sensor associated with the physical size of the type of sensor. Thus, it is sufficient to determine the position of the sensor on the DUT, since the sensor type is specified by the sensor. Nevertheless, the sensor type could also be determined from the sensor position, which could then be compared with the transmitted sensor type, which can help to avoid possible parameterization errors.
    If the sensor transmits its sensor type as information and the parameterization comprises the assignment of the physically measured variable and / or the sensor type to the localized sensor, the parameterization can largely be automated, which considerably reduces the effort required for the parameterization.
    It is very particularly advantageous if the sensor transmits a unique sensor identifier as information and the physically measured variable and / or the sensor type and / or calibration data are assigned to the localized sensor on the basis of the sensor identifier. -2-
    AV-3440 AT * * * * * «· '· · · ♦ · * f · · · I · * I ·
    This allows fully automated parameterization, which minimizes the effort required for parameterization.
    The subject invention will be described with reference to Figures 1, which shows by way of example, schematically and not limitation, a preferred embodiment of the invention. It shows
    Fig. 1 shows an arrangement for the parameterization according to the invention.
    In Fig. 1, a test specimen 1, here an internal combustion engine with exhaust line 4 and catalyst 5, arranged in a test stand 2 only indicated. Such test rig arrangements are well known, which is why the details are not discussed here. In addition to an internal combustion engine, of course, there are also other specimens 1, such as e.g. a powertrain, a transmission, a vehicle, etc., in question, on the DUT 1, as usual in a test bench 2, a number of sensors 51. 52, 53, 54, 55, 56 installed. The sensors 51, 52, 53, 54, 55, 56 deliver their measured values, via a cable or wirelessly, to an automation system 6, which monitors and controls the test stand 2, the test object 1 and the test run, and evaluates the test run result. For the use of the sensors 51, 52, 53, 54, 55, 56, these must be parameterized in advance so that the measured values of the sensors 51, 52, 53, 54, 55, 56 can be converted into the correct physical variables. The automation system 6 must therefore at least be known from where the test specimen results in a measured value and what the sensor 51, 52, 53, 54, 55, 56 located there measures. This must be announced to the automation system 6 before the start of the test run.
    For this purpose, a localization unit 10 is provided, which first determines the position of a sensor 51, 52, 53, 54, 55, 56 using a suitable localization method. Such localization methods are well known in the art and any suitable method for the invention may be used, such as e.g. Triangulation, trilateration, distance measurement with electromagnetic waves (eg microwaves) or sound waves (eg ultrasound), methods based on Doppler effect, laser measurement, image recognition, etc. These localization methods use information transmitted by sensors (active or passive) in order to obtain information according to the applied method Position to determine. The information is detected and evaluated by a detection device. The transmission of information from the sensor 51, 52, 53, 54, 55, 56 may be active, e.g. by coded transmission of a message, or passive, e.g. a day on the sensor that can be read or sighted by optical methods. For example, In triangulation, the angles of a reference point to the measuring location are determined and from this the position of the measuring location in the room. In the trilateration, the distances of a reference position to the measuring location are determined. In this case, a passive, e.g. optical, or an active, e.g. radio-technically, Win-
    AV-3440 AT > · · · · · · · · · · · · · · · · · · · · · Φ * »· I ft · * · kel or distance measurement are used. In a laser measurement, a measurement location is targeted by a laser beam and the reflected laser beam is detected and evaluated, e.g. in terms of phase or duration.
    This is illustrated in FIG. 1 using the example of an ultrasound-based localization method. For this purpose, three ultrasonic transducers 11, 12, 13 are arranged here as detection means, and more transducers may be provided. The individual sensors 51, 52, 53, 54, 55, 56 now sequentially transmit an ultrasonic signal, e.g. a coded fixed message. Basically, any transmission protocol and any suitable data format can be used for data transmission. Due to a transit time measurement, the distance between the sensor 54 and the individual ultrasonic transducers 11, 12, 13 and thus the position of the sensor 54 in space relative to the ultrasonic transducer 11, 12, 13 or any other reference position can be determined. The localization unit 10 sends the detected sensor position 54 (x, y, z) to a parameterization unit 3. The parameterization unit 3 may be e.g. as here be an independent unit in the test bench environment, but can also be integrated in the automation system 6 of the test bed 2 or in the localization unit 10.
    In a geometry database 20, geometry data for the test object 1 is stored, which can be accessed by the parameterization unit 3. In this case, all data which describe the test piece 1 in the form of spatial points or components with their position in space, for example, are considered as geometric data. 3D CAD data from a design environment. Each component of the specimen 2 is determined by its three-dimensional extent and known. By comparing the determined sensor position 54 (x, y, z) with the geometry data in the parameterization unit 3, the position of the sensor 54 on the DUT 1 or the arrangement of the sensor 54 on a particular component of the DUT 1 can be determined, whereby the context between Position and sensor can be made.
    For this purpose, possible installation locations for sensors can already be defined during the construction of the test object and stored in the design data (for example CAD data). Of course, this could be done retrospectively to existing design data.
    For example, at position (x, y, z), a bore could be defined, along with descriptive data such as "temperature sensor measurement point" or more concretely equal to an associated standard name, e.g. Measuring point "T_EX_C0T '. Thus, the assignment of the position to the measuring task (ie to the measured physical quantity) is clear and simple. However, the design data must be prepared and enriched accordingly, but this would only have to be done once. -4-
    AV-3440 AT
    Alternatively, the design data (e.g., CAD data) could include a parts list. From the component list itself or from additional descriptive text or tags to each component, then e.g. be determined by comparing the word using a predetermined word list, which includes the possible components.
    Furthermore, heuristics could also be defined in general, from which the most probable position of the sensor can be determined. In addition, analogous to the location of the sensors, additional reference points on the test object could also be measured in order to assist the localization of the sensor. The additional reference points may describe location locations (e.g., oil pan, exhaust line, cylinder head, etc.) for typical DUT configurations relative to these reference points. Such heuristics-based rules could e.g. such as the type "oil pan is below", "exhaust line is seitlich'1," cylinder head is above oil sump ", etc. be defined. Of course, methods of artificial intelligence, e.g. neural network, or expert systems are used.
    Of course, this comparison can also be performed in the localization system 10. In this way, each sensor 51, 52, 53, 54, 55, 56 can be assigned to at least one component or a spatial position. From the assigned position, a conclusion can then be drawn on the type of sensor. In many cases, this makes a clear determination of the type of sensor possible. For example, can in the determination of the sensor position "exhaust outlet; Cylinder Γ be closed, that it must be a temperature sensor, since no other sensor can be reasonably replaced on this component. Subsequently, the measured variable "temperature port cylinder 1" and even the standard name to be assigned thereto can be assigned automatically, here e.g. T_EX_C01.This information, that is, which sensors for soft component or for which spatial position are possible, can be stored in the parameterization unit 3 or in a sensor database 21 or at another suitable storage location.
    On other components of the device under test, only an ambiguous assignment of the sensor position to the type of sensor will be possible. For example, can be arranged directly adjacent to each other in the oil passage of an engine temperature sensors and pressure sensors. When determining the position "in the oil channel" at least a limited selection (in this case temperature and pressure) can be offered, which can then be assigned manually by the test stand engineer correctly, whereby the parameterization is at least considerably easier.
    If no unambiguous determination of a component or a position of the sensor 54 on the test object is possible, the test bench engineer may also be provided with a selection of possible components.
    AV-3440 AT or positions for manual selection, which at least facilitates the parameterization.
    Thus, the sensors 51, 52, 53, 54, 55, 56 alone can be parameterized automatically at least partially from the automatically determined position. In this case, the automatic parameterization includes only the determination of the position of the sensor 51, 52, 53, 54, 55, 56 and therefrom its measured physical size (ie the type of sensor). The further assignment of the concrete installed sensor, so e.g. Sensor type and calibration data, for the determined position can then be done manually.
    In an improved embodiment, a sensor 51, 52, 53, 54, 55, 56 transmits not only a neutral coded message, but also the type of sensor 51, 52, 53, 54, 55, 56, ie the type of measured physical quantity , such as Pressure, temperature, oxygen concentration, etc. The type of sensor may be e.g. simply in the form of additional information, such as "1" for temperature, "2" for pressure, etc. are transmitted. Thus, an unambiguous assignment of the type of sensor to the determined position can be carried out automatically, even in cases in which the position permits ambiguity with regard to the installed sensor. As a result, by means of the automated parameterization, each sensor can be characterized by its position and the transmitted sensor type, e.g. Temperature sensor on the oil sump, oxygen sensor in front of the catalytic converter, temperature sensor downstream of the catalytic converter, pressure sensor on the x-th cylinder, etc.
    The type of sensor no longer has to be derived from the determined position of the sensor 54 on the test object, but instead the information transmitted by the sensor 54 can be taken directly. Nevertheless, the type of sensor can also be determined from the sensor position, e.g. in order to be able to carry out a plausibility comparison by means of redundancy, in order to avoid errors in the parameterization, or to enable a parameterization even if the sensor type can not be evaluated or not correctly evaluated for some reason.
    In a further embodiment, the sensor 51, 52, 53, 54, 55, 56 also transmits sensor type, e.g. Temperature sensor PT100, pressure sensor 0..1000mBar, etc., whereby the sensor 51, 52, 53, 54, 55, 56 after the automatic parameterization in principle already ready for use, so the measured value can be converted into a correct physical value. The sensor type can be coded e.g. be transmitted in the form of an additional field in the message sent by the sensor. The sensor type can be transmitted in addition to the sensor type. The type of sensor can also be derived from the sensor type, whereby the transmission of the type of sensor can also be omitted. -6-
    In a preferred embodiment, however, a sensor 51, 52, 53, 54, 55, 56 provides its unique identification, so that the parameterization can also include the assignment of calibration data for each sensor, for which purpose a sensor database 21 can be provided in which corresponding data, such as calibration data, for example, are stored for each sensor 51, 52, 53, 54, 55, 56 and can be called up via the sensor identifier For an error-free and reliable measurement, the calibration of the sensor 51, 52, 53, 54 , 55, 56. For this purpose, there are also corresponding standards for specifying the sensor identifier, such as the TEDS standard (in accordance with IEEE 1451.4 Transducer Electronic Data Sheet) .The sensor identifier preferably allows unambiguous identification of the sensor 54, eg via a sensor serial number. In this case, the sensor type and the sensor type can also be interrogated by the transmitted sensor identifier from the sensor database 21 and need not be self-owned s from sensor 54 with.
    The localization of the sensor 51, 52, 53, 54, 55, 56 can also be done with methods of digital image recognition. For this, the sensors may be e.g. with suitable image marks, e.g. a marking for the type of sensor or a unique sensor identifier, be provided, which can be evaluated by the image recognition. Thus, at least the position of the sensor 51, 52, 53, 54, 55, 56 and (at least partially automatically) the type of sensor can be determined again. If the sensor additionally has the sensor type or even an unambiguous sensor identifier which enables unambiguous identification, which can be evaluated by the image recognition, the parameterization can also automatically allocate further information as described above.
    Another alternative is the use of moving antennas that allow the application of the Doppler effect. Thus, the position of the sensor 51, 52, 53, 54, 55, 56 can be made more accurate and it may also be detected sensors that would not be reached by fixed antennas or transducers.
    It can also be provided to use a redundant number of antennas, transducers, image recording devices, lasers, etc. Thus, the position of a sensor 51, 52, 53, 54, 55, 56 can be determined by means of different antennas, transducers, image recording devices, lasers, etc., that is to say several times. An average determination or the use of probability considerations (determination of the highest probability for the position of a sensor) can in turn lead to increased accuracy. This may also help in the cases where a sensor 51, 52, 53, 54, 55, 56 is arranged so that the radiated waves can not be detected by all antennas, transducers, image pickup devices, etc., e.g. due to the geometric conditions of the specimen 1. -7-
    权利要求:
    Claims (10)
    [1]


    A method for parameterizing a sensor (54) mounted on a specimen (1) in a test stand (2), characterized in that the sensor (54) transmits information detected by a detection device and the position (54 (x, y, z)) of the sensor (54) in space is determined therefrom by a localization method, the determined sensor position (54 (x, y, z)) is compared with geometric data of the test object (1), and the position of the sensor (54) on the test piece (1) is determined by this comparison and the sensor (54) is subsequently parameterized by the localized sensor (54) based on the determined position (54 (x, y, z)) on the test piece (1) the size physically measured by the sensor (54).
    [2]
    2. The method according to claim 1, characterized in that at an ambiguity in the determined position (54 (x, y, z)) or the determined physical quantity, a proposal for a manual selection of the correct position or physical size is offered.
    [3]
    3. The method according to claim 1 or 2, characterized in that the sensor (54) transmits as information its type of sensor and the sensor (54) associated physical size of the type of sensor is removed.
    [4]
    4. The method of claim 1 or 2, characterized in that the sensor (54) as information transmits its sensor type and the parameterization comprises the assignment of the physically measured size and / or the sensor type to the localized sensor (54).
    [5]
    5. The method of claim 1 or 2, characterized in that the sensor (54) transmits as information a unique sensor identifier and the localized sensor (54) are assigned due to the sensor identifier, the physically measured size and / or the sensor type and / or calibration data.
    [6]
    6. Device for parameterizing a sensor (54) which is mounted on a test specimen (1) in a test stand (2), characterized in that a detection device is provided, with the information transmitted by the sensor (54) detectable and to a localization unit (10), the localization unit (10) determines therefrom by a localization method the position (54 (x, y, z)) of the sensor (54) in space that a parameterization unit (3) is provided, in which the determined sensor position (54 (x, y, z)) is comparable to geometric data of the test piece (1) and by this comparison the position (54 (x, y, z)) of the sensor (54) on the test piece (1) can be determined and in that Sensor (54) by -8- the parameterization unit (3) is subsequently parameterized by the localized sensor (54) on the basis of the determined position on the DUT (1) the physically measured by the sensor (54) size can be assigned.
    [7]
    7. The method according to claim 6, characterized in that the localization unit (10) or the parameterization unit (3) is set up to detect an ambiguity in the determined position (54 (x, y, z)) or the determined physical quantity Proposal for a manual selection of the correct position or physical size.
    [8]
    8. The method according to claim 6 or 7, characterized in that the localization unit (10) or parameterization unit (3) is adapted to determine a sensor (54) transmitted 10 sensor type and therefrom the sensor (54) associated with physical size and attributable to the sensor (54).
    [9]
    9. The method according to claim 6 or 7, characterized in that the localization unit (10) or parameterization unit (3) is arranged to detect a sensor type (54) transmitted sensor type and therefrom the sensor (54) associated physical size 15 and assign the determined physical quantity and / or the sensor type to the sensor (54).
    [10]
    10. The method according to claim 6 or 7, characterized in that the localization unit (10) or parameterization unit (3) is adapted to a sensor (54) transmitted sensor identifier and therefrom the sensor (54) associated sensor type and the sensor 20 sor (54) assigned to determine physical size and assign the determined sensor type and / or the determined physical size and / or calibration data to the sensor (54). -9-
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    JP5848456B2|2016-01-27|
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    EP2771645A1|2014-09-03|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1581/2011A|AT510674B1|2011-10-27|2011-10-27|METHOD AND DEVICE FOR PARAMETERIZING A SENSOR|ATA1581/2011A| AT510674B1|2011-10-27|2011-10-27|METHOD AND DEVICE FOR PARAMETERIZING A SENSOR|
    EP12766680.8A| EP2771645B1|2011-10-27|2012-10-02|Method and an apparatus for parameterizing a sensor|
    CN201280048498.8A| CN103857990B|2011-10-27|2012-10-02|For the method and apparatus of parametrization sensor|
    HUE12766680A| HUE027905T2|2011-10-27|2012-10-02|Method and an apparatus for parameterizing a sensor|
    US14/353,977| US20140303930A1|2011-10-27|2012-10-02|Method and an apparatus for parameterizing a sensor|
    KR1020147009478A| KR101568949B1|2011-10-27|2012-10-02|Method and an apparatus for parameterizing a sensor|
    ES12766680.8T| ES2565388T3|2011-10-27|2012-10-02|Method and a device to parameterize a sensor|
    JP2014536173A| JP5848456B2|2011-10-27|2012-10-02|Method and apparatus for parameterization of sensors|
    PCT/EP2012/069443| WO2013060556A1|2011-10-27|2012-10-02|Method and an apparatus for parameterizing a sensor|
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