The present invention relates to a process for the measurement of a physical measured variable and a measuring system for carrying out the process that includes displaying process parameters in windows of a graphical user interface.
A physical measured variable is measured using a measuring unit. The physical measured variable may be a force, a pressure, a mass, a temperature, etc. Usually, this measuring process requires a plurality of temporally and spatially separated process steps. A pressure is measured in a measuring chamber, for example. For this purpose, a piezoelectric pressure sensor disposed in the measuring chamber detects the pressure and generates an amount of electrical charges that is proportional to the pressure detected. This amount of electrical charges is transmitted as the measurement signal by means of a signal cable to an evaluation unit, which is located in a spatial distance from the measuring chamber, and is where the measurement signal is evaluated to obtain a measured variable. A measuring unit of this type thus comprises a plurality of transmission elements such as a sensor, measuring cable and an evaluation unit, said transmission elements forming a measuring chain. There is a cause-and-effect relationship between directly adjacent transmission elements in the measuring chain during the measurement of the physical measured variable.
Often, a plurality of measuring units together form a measuring system. In an example, a cylinder pressure of eighteen cylinders of a marine engine is measured as the physical measured variable continuously over a period of several weeks. The cylinder pressure is several 100 bar, a cylinder temperature is several 100° C. In this example, the measuring system comprises eighteen measuring units. Each measuring unit comprises a piezoelectric pressure sensor and a thermocouple which record the cylinder pressure and the cylinder temperature of one cylinder. A measurement frequency is 10 kHz. Each measuring unit comprises a measuring cable for transmitting the measurement signals to an evaluation unit. The evaluation unit itself comprises 36 measuring channels so that it can receive the measurement signals in a cylinder-specific manner. The evaluation unit electrically amplifies the measurement signals and displays the electrically amplified measurement signals as the measured variables and stores said measured variables.
Thus, the measuring system comprises many process parameters such as the measuring units, the detection of the physical measured variable, the evaluation of the measurement signal for obtaining a measured variable, and so on. Most of these process parameters of the measuring system must be adjusted and all process parameters of the measuring system must be monitored. Therefore, it is necessary to establish which piezoelectric pressure sensor and which thermocouple are arranged at a certain cylinder or which measuring cable is connected to a particular measuring channel of the evaluation unit, etc. Furthermore, it must be monitored whether the cylinder pressure and cylinder temperature measured for the marine engine conform with predetermined limit values and an alarm is given in the event of non-conformance. In addition, it is necessary to be able to start and stop measurements and to change process parameters, for example in the event of a defective measuring cable that must be replaced. For this purpose, the measuring system comprises a computer program product for the setting and monitoring of process parameters. The computer program product may be operated via a graphical user interface (GUI). A user of the measuring system may operate and monitor the measuring system via the graphical user interface and start and stop measurements. The graphical user interface comprises windows. The windows serve for displaying information on the measuring system. However, also control signals for the setting and monitoring of process parameters and for the starting and stopping of measurements may be entered into the windows.
The computer program product comprises a large number of windows to account for the wide variety and the large number of process parameters. This large number of windows is often nested hierarchically which has an adverse effect on the clarity and transparency of the graphical user interface. Thus, information concerning a number of measuring channels for receiving the measurement signals is displayed in a fourth window from the top of a window stack, for example. However, the fourth window from the top may be hidden behind three overlying windows of the window stack. Therefore, the fourth window from the top is only visible in the graphical user interface after the three overlying windows of the window stack have been opened successively. Thus, it is necessary to first open or move three overlying windows of the window stack before the information can be displayed. A graphical user interface of this type is cumbersome to use.
It is a first object of the present invention to provide a process for the measurement of a physical measured variable, which process uses a computer program product for the setting and monitoring of process parameters, which computer program product can be easily used via a graphical user interface and is clear and transparent. A further object of the invention is to provide a measuring system for carrying out said process.
These objects have been achieved by the features described below.
The invention relates to a process for the measurement of at least one physical measured variable by using process parameters of a measuring system. The process parameters include a plurality of measuring units required for measuring the physical measured variable. The process parameters comprise the process steps of at least one detection of the physical measured variable as the measurement signal, at least one evaluation of the measurement signal for obtaining a measured variable, at least one representation of the measurement signal or measured variable and at least one processing of the measurement signal or measured variable. A computer program product is included for the setting and monitoring of the process parameters and configured so that each process parameter is displayed on a graphical user interface in a window that may be collapsed to a window that uses precisely the space on the graphical user interface that is needed to display the corresponding process parameters in short form. The computer program product is configured so that each window may be opened, and an opened window uses precisely the space on the graphical user interface that is needed to display the corresponding process parameters in long form.
The selective opening and closing of windows that are dedicated to the process parameters creates space on the graphical user interface so that information is represented in a clear and transparent manner. All process parameters are displayed in windows specifically assigned thereto. In collapsed windows the process parameters are shown in short form and in opened windows the process parameters are represented in long form. The computer program product is configured so that a user of the measuring system may open and close windows depending on the information content desired.
The invention also relates to a measuring system for carrying out the process, wherein the process parameters are classified in categories, a first category of process parameters comprises a plurality of measuring units required for the measurement of the physical measured variable, a second category comprises at least one detection of the physical measured variable as the measurement signal, a third category comprises at least one evaluation of the measurement signal for obtaining a measured variable, a fourth category comprises at least one representation of the measurement signal or measured variable, and a fifth category comprises at least one processing of the measurement signal or measured variable. Each category is assigned a unique index number; and wherein the computer program product displays in at least two columns on the graphical user interface the windows of process parameters having the same index number.
This category-specific representation of process parameters is clear and transparent. Preferably, by activating and deactivating a column it is thus easily possible to manage the information content displayed in the windows in a category-specific manner. In a deactivated column the windows are closed and the process parameters are shown in short form; in an activated column the windows are opened and the process parameters are shown in long form. The computer program product is configured so that a user of the measuring system may activate and deactivate columns depending on the information content that he or she desires.
In the following, the present invention will be explained in more detail by way of example with respect to the figures in which:
A first category of process parameters comprises at least one measuring unit 1 required for measuring the physical measured variable M. Each measuring unit 1 comprises a plurality of transmission elements such as at least one sensor, at least one measuring cable and at least one evaluation unit. A measuring unit 1 measures at least one physical measured variable M, however, it may also measure more than one physical measured variable M. The measuring unit 1 and its transmission elements are also referred to as measurement setup.
A second, third, fourth and fifth category of process parameters comprise process steps of a process V. Thus, a second category of process parameters comprises the process step of at least one detection 2 of a physical measured variable M as the measurement signal. A third category of process parameters comprises the process step of at least one evaluation 3 of the measurement signal for obtaining at least one measured variable. The evaluation 3 is also called data processing. A fourth category of process parameters comprises the process step of at least one representation 4 of the measurement signal or measured variable. The representation 4 of the measurement signal or measured variable may be in the form of a table, a graph, etc. Furthermore, a fifth category of process parameters comprises the process step of at least one processing 5 of the measurement signal or measured variable. The processing 5 of the measurement signal or measured variable may be a use thereof as a trigger signal for a downstream process such as a detection of good/bad parts in an injection molding process, a data transmission to a memory at a spatially distant location, a data transfer to a data processor at a spatially distant location, etc.
The data input device DE and data output device DA may be separate components such as a keyboard, a computer mouse, a computer screen, a serial interface, etc., however, they may also be integrated in one component such as a touch screen. The data output device DA comprises at least one screen or touch screen having a graphical user interface GUI.
Thus, at least one computer program product C that is stored in the form of data in the data memory DS may be loaded from the data memory DS in the form of data via the data bus DB into the data processor DP. After having been loaded the computer program product C is executed by the data processor DP.
The computer program product C is able to read both data of at least one measurement signal and data of at least one measured variable from a data input device DE, for example a serial interface, via the data bus DB. Therefore, the computer program product C is able to perform the evaluation 3 of the measurement signal for obtaining a measured variable, it may also perform the representation 4 of the measurement signal and the measured variable, and it may perform the processing 5 of the measurement signal or measured variable. However, the evaluation 3 of the measurement signal for obtaining a measured variable, the representation 4 of the measurement signal and measured variable, and the processing 5 of the measurement signal and measured variable may also be performed in an analysis unit that is located remotely in a spatial distance from the electronic computing unit R.
The process parameters are stored as data in the data memory DS and may be retrieved from the data memory DS.
The categories are indexed. Preferably, a unique index number is assigned to each category. The index number of the first category is I, the index number of the second category is II, the index number of the third category is III, the index number of the fourth category is IV, and the index number of the fifth category is V. The index number is a characteristic of the process parameters and is stored together with the data of the process parameters in the data memory DS and may be retrieved from the data memory DS.
The computer program product C schematically shown in
The computer program product C is configured with the capability to set and monitor process parameters of the measuring system S. Setting a process parameter means to change the state of the process parameter. For example, a measurement is started or terminated by inputting a control signal for the process step of detecting 2 the physical measured variable M. Monitoring of a process parameter refers to the representation 4 of the time course of the process parameter. For example, a detailed representation of a measurement signal or measured variable is done by displaying a time course of the measurement signal or measured variable in the form of a graph. The computer program product C is configured to transmit data of a control signal via the data bus DB to the data output device DA, for example a serial interface. From the data output device DA, the data of the control signal are transmitted to a measuring unit 1 such as a sensor or an evaluation unit.
The computer program product C outputs information about the measuring system S on the graphical user interface GUI. For this purpose, the graphical user interface GUI comprises columns comprising windows. The computer program product C is configured to transmit information data to the graphical user interface GUI via the data bus DB and to put the data out as information in the columns comprising windows.
The computer program product C is configured to be operated via the graphical user interface GUI. Operating the computer program product C means to input control signals. Control signals for the setting and monitoring of process parameters may be entered in the columns comprising windows. Thus, the data input device DE may be a computer mouse which moves a cursor U across the graphical user interface GUI as shown in
A first column 10 in
A second column 20 shows process parameters of the second category of detecting 2 the physical measured variables M as measurement signals in five measurements. The second column 20 is deactivated and shows five collapsed windows 2×1 to 2×5. Each collapsed window 2×1 to 2×5 shows the detection 2 of the physical measured variable M to be detected as the measurement signal in one of five measurements in short form.
A third column 30 shows process parameters of the third category of evaluating 3 the measurement signal for obtaining a measured variable for the five measurements. The third column 30 is deactivated and shows five collapsed windows 3×1 to 3×5. Each collapsed window 3×1 to 3×5 shows the evaluation 3 of the measurement signal for obtaining a measured variable for the five measurements in short form.
A fourth column 40 shows process parameters of the fourth category of representing 4 the measurement signal or measured variable for the five measurements. The fourth column 40 is deactivated and shows five collapsed windows 4×1 to 4×5. Each collapsed window 4×1 to 4×5 shows the representation 4 of the measurement signal or measured variable for the five measurements in short form.
A fifth column 50 shows process parameters of the fifth category of processing 5 of the measurement signal or measured variable for the five measurements. The fifth column 50 is deactivated and shows five collapsed windows 5×1 to 5×5. Each collapsed window 5×1 to 5×5 shows the processing 5 of the measurement signal or measured variable for the five measurements in short form.
A deactivated column with collapsed windows as schematically shown in
The embodiment of the graphical user interface GUI according to
A status notification T of the process parameters of the measuring system S may be displayed in the graphical user interface GUI as schematically shown in
For example, the status notification T of the measuring units 1 indicates whether or not a measurement of a physical measured variable M is currently carried out.
For example, the status notification T of the detection 2 of the physical measured variables M in the form of measurement signals indicates whether or not a physical measured variable M is currently being recorded as measurement signals.
For example, the status notification T of the evaluation 3 of the measurement signal for obtaining a measured variable indicates whether or not an evaluated measured variable is currently within predefined limit values.
For example, the status notification T of the representation 4 of the measurement signal or measured variable indicates whether or not a measurement signal or measured variable may be currently represented.
For example, the status notification T of the processing 5 of the measurement signal or measured variable indicates whether or not a measurement signal or measured variable is currently being processed.
In the embodiment of the graphical user interface GUI according to
In this example depicted in
In the example depicted in
In the example depicted in
Those skilled in the art and being aware of the present invention may implement other status notifications such as an availability of a measuring unit, etc. Those skilled in the art may display a status notification using other graphical means and/or acoustic means.
An activated column with opened windows uses precisely the space on the graphical user interface GUI that is necessary to display the corresponding process parameter in long form. Preferably, an activated column with opened windows uses a maximum space of more than 50% of the graphical user interface GUI. A representation of a process parameter in long form is a detailed representation as schematically shown in
It will be clear for the skilled artisan being aware of the present invention that a deactivation of an activated column is achieved analogously to the activation of a deactivated column. An activated column is deactivated by moving a cursor U to select a column and clicking so that the windows of the deactivated column are collapsed.
Thus, the graphical user interface GUI according to
In the example of
In the example of
In the example of
In the example of
Those skilled in the art being aware of the present invention may display other or all process parameters in specifically assigned windows that have a fine structure.
Furthermore, no status notification T is activated in the graphical user interface GUI according to
Number | Date | Country | Kind |
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18195965.1 | Sep 2018 | EP | regional |
The present application claims priority to patent application serial number PCT/EP2019/074376, filed on Sep. 12, 2019, which patent application is hereby incorporated herein in its entirety by this reference for all purposes.
Filing Document | Filing Date | Country | Kind |
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PCT/EP2019/074376 | 9/12/2019 | WO | 00 |