Data acquisition control through virtual panels displayed on a computer screen

Virtual Panel In the virtual instrument system, the design of the operation panel is an important part of the software design. The user realizes the functions of data collection and control, data analysis and processing, and print display through the virtual panel displayed on the computer screen. The system has designed a “calibration calibration” virtual panel, and the entire process of verification calibration is completed in this panel.

The parameters of the gauge and the calibration time and environmental conditions are input through the keyboard, and the certificate numbers are automatically generated in order. After clicking “Measure”, the system will automatically adjust to the measured device, and automatically display, check the nominal capacity of the point, the capacity tolerance measurement repeatability and other measurement performance requirements. The temperature measurement data and the weighing data are automatically displayed. After confirming with the mouse, the kitten cable data is recorded in the corresponding position in the table, and the system automatically checks the table to calculate the revision. After the entire calibration is completed, the system automatically gives a compliance decision and gives an estimate of the measurement uncertainty. The final operation and verification personnel input the password. After confirming the calibration process, click Save Data to save the data. If the password is not entered or the password is incorrect, the data will not be stored in the database, ensuring traceability of the data. The system has designed a data refinement subfunction to make all operations meet the requirements of the rule.

Data repair sub-function workflow, software test software test is achieved through a series of test cases, test cases usually have input and output two sets of values, the input is the design parameters, the output is the expected value. The commonly used methods for designing test cases are the equivalence partitioning method (dividing the input field of the program into data classes, and deriving the test cases accordingly) and the boundary value analysis method (determining the boundary conditions of the program processing, and designing the program to run near the boundary condition). Test plan), error guessing method (listing possible errors in the program and special cases where errors are easy to occur).

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