• 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:
    According to the invention, a method and a device for determining an observable property of an object with a program-controlled measuring instrument has a diagnostic measuring program to be executed by the user, which stores data related to the execution of the diagnostic measuring program and makes them available for remote transmission to a remote maintenance authority.
    公开号:CH717744A2
    申请号:CH70090/21
    申请日:2021-07-22
    公开日:2022-02-15
    发明作者:Jörimann Urs；Wüst Urs；Abrahams Moosa；Dängeli Andreas
    申请人:Mettler Toledo Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a method for determining an observable property of an object using a program-controlled measuring instrument, with which the property can be determined by evaluating measured values of the object recorded during the execution of a measuring program provided in the measuring instrument, and to a measuring instrument to carry out the procedure.
    [0002] In the course of the operation of such measuring instruments by the user, disturbances can occur which lead to a deviation from the regular measuring behavior of the measuring instrument and require maintenance work, through which the regular measuring behavior is restored. For this purpose, a maintenance technician conventionally carries out an examination of the measuring instrument, in particular using special software maintenance tools, and then decides on the type of maintenance intervention required on the basis of the diagnosis based on the examination. For this, however, it is necessary to transport the measuring instrument from the user location to the location of the maintenance authority or vice versa. In principle, instead of such a transport, remote maintenance could take place, although this would require access by the maintenance instance to the user-side data processing system, which is generally undesirable for the user. One difficulty, even if a user were willing to accept such access, is that the measurement programs of such measurement instruments generally require runtimes on the order of several hours. Since deviations in the measurement behavior can be expressed at any point in time during the runtime of the measurement program, the observation period for the maintenance instance is just as long, with a correspondingly high idle time.
    [0003] In contrast, the invention is based on the object of specifying a method and a device with which the effort of the maintenance authority conventionally associated with restoring the regular measurement behavior is reduced.
    According to the invention, this object is achieved with regard to the method in that a diagnostic measuring program is provided in the measuring instrument, which, when it is called up, requests the setting of at least one operating condition of the measuring instrument from its user and, after this request has been completed, executes the diagnostic measuring program completely and with its execution saves related data and makes it available for remote transmission to a remote maintenance authority.
    With regard to the device, the task is performed by a measuring device for carrying out the method with a measuring device for acquiring measured values of an object, a control device for controlling the measuring operation of the measuring device according to a measuring program provided in the control device and an evaluation device for determining an observable property of the object as a function of the measured values recorded during the execution of the measuring program, which is characterized in that the control device can be operated in accordance with a diagnostic measuring program provided in the control device which, when it is called up, requests the setting of at least one operating condition of the measuring instrument from its user and after completion This request completely executes the diagnostic measurement program and saves data related to its execution and makes it available for remote transmission to a remote maintenance authority.
    The feature of the measuring program or diagnostic measuring program provided in the control device is to be understood in such a way that it can be installed both in the firmware of the measuring instrument (device software) and in a PC connected to it.
    Since, according to the invention, the execution of the diagnostic measurement program on the measuring instrument is initiated by the user, either by their own decision or after communication with the maintenance authority, the latter is relieved of a time-consuming observation of the program sequence and in particular does not need to visit the user location. In particular, the diagnostic measurement program can be initiated by the user towards the end of his working hours and the program sequence can then be carried out completely without further interaction. By storing and making available data related to the execution of the diagnostic measurement program, the maintenance instance can accept this data at a time that suits it and, by evaluating this data, create a fault diagnosis and plan a maintenance intervention suitable for troubleshooting.
    The diagnostic measuring program of the measuring instrument can be designed in such a way that it essentially corresponds to the measuring program of a real measuring process, possibly with one or more additions that facilitate error detection. Several diagnostic measuring programs can also be provided in the measuring instrument, which differ in particular with regard to a fictitious sample provided for the diagnostic measuring process. For example, in the case of a thermal analysis measuring device, the measuring process can be provided without any sample at all, with an empty sample holder or an empty measuring crucible on the sample holder. The user has no access to the design of the diagnostic measurement program in detail. He can only make a selection between the specific diagnosis measurement program(s) to be called up if several such diagnosis measurement programs are available.
    The operating conditions of the measuring instrument to be set by the user relate in particular to its proper condition, for example a necessary cleaning of sample holders, leveling of the installation of the measuring instrument or the like, or switching components such as heating, cooling, a gas supply or the like.
    [0010] The stored data preferably contain the measured values of the (fictitious) object recorded during the execution of the diagnostic measurement program. In particular, a deviation from the regular measurement behavior can often be quickly recognized optically by a curve representation of these measured values. In order to determine a required maintenance intervention, it is also advantageous if the stored data contain device data specifying the measuring instrument. In particular, this can involve specifications of device components, as a result of which the maintenance authority can immediately identify a corresponding spare part.
    [0011] In particular, the maintenance instance can check the measurement data transmitted to it with regard to whether all measurement values are within permissible tolerances. If this is not the case, the maintenance instance diagnoses the possible causes of the abnormal behavior, notifies the user and, if necessary, carries out appropriate maintenance at the user site. As a result of the diagnostic data previously created by the user at the place of use and transmitted to the service instance, it can be ensured that the maintenance technician has all the necessary spare parts with him during his maintenance visit.
    The data is preferably stored and transmitted in the form of a zip file.
    The method is preferably carried out on measuring instruments of the following type:Thermal analysis devices in which a heat flow flowing to a sample is measured as a function of an excitation temperature and thermodynamic parameters of the sample, in particular its complex heat capacity, are determined from this,Devices for determining electrochemical properties of a sample, such as pH value, conductivity, ion concentration, oxygen content and the like,UV/Vis spectrometers,Melting and dropping point devices for measuring melting point, melting range, boiling point, slip melting point, cloud point, dropping point and softening point,Density meters based on U-tube technology,Refractometers for measuring the refractive index and quantities derived from it,Balances, such as laboratory balances and moisture analyzers,Product inspection equipment such as checkweighers, metal detectors, x-ray inspection systems, visual inspection systems and combined product inspection equipment.
    权利要求:
    Claims (8)
    [1]
    1. A method for determining an observable property of an object with a program-controlled measuring instrument, with which the property can be determined by evaluating measured values of the object recorded during the execution of a measuring program provided in the measuring instrument, characterized in that a diagnostic measuring program is provided in the measuring instrument , which, when called, requests the setting of at least one operating condition of the measuring instrument from its user and, after completion of this request, completely executes the diagnostic measuring program and saves data related to its execution and keeps it ready for remote transmission to a remote maintenance entity.
    [2]
    2. The method as claimed in claim 1, characterized in that the stored data contain the measured values of the object recorded during the execution of the diagnostic measurement program.
    [3]
    3. The method according to claim 1 or 2, characterized in that the stored data contain device data specifying the measuring instrument.
    [4]
    4. The method according to any one of claims 1 to 3, characterized in that the operating condition to be set by the user relates to a status of a device component of the measuring instrument when the diagnostic measuring program is executed.
    [5]
    5. The method according to any one of claims 1 to 4, characterized in that the maintenance entity creates a fault diagnosis by evaluating the data transmitted to it.
    [6]
    6. The method as claimed in claim 5, characterized in that the maintenance instance defines a maintenance intervention on the measuring instrument on the basis of the fault diagnosis.
    [7]
    7. The method according to any one of claims 1 to 6, characterized in that the measuring instrument is a thermal analysis device, an analysis device for determining an electrochemical property, a melting or dropping point device for titration, a device for UV/Vis spectroscopy, a density meter or is a refractometer, or a weighing device such as a laboratory balance or a moisture analyzer, or a product inspection device such as a checkweigher, a metal detector for x-ray inspection, for visual inspection or a combined product inspection device.
    [8]
    8. Measuring instrument for carrying out the method according to one of claims 1 to 7, with a measuring device for acquiring measured values of an object, a control device for controlling the measuring operation of the measuring device according to a measuring program provided in the control device, and an evaluation device for determining an observable property of the object depending on the measured values recorded during the execution of the measuring program, characterized in that the control device can be operated in accordance with a diagnostic measuring program provided in the control device which, when it is called up, requests the setting of at least one operating condition of the measuring instrument from its user and, after this request has been completed, the diagnostic measuring program executes completely and saves data related to its execution and makes it available for remote transmission to a remote maintenance instance.
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    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102020004841.2A|DE102020004841A1|2020-08-07|2020-08-07|Method and device for determining an observable property of an object|
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