Method of measuring parameters set by measuring instrument for the purpose of supporting multi-touch screen
A technology of measuring parameters and multi-touch, which is applied in the field of measuring instruments, and can solve problems such as cumbersome work and inconvenient operation of setting parameters
Active Publication Date: 2015-06-24
TIANJIN DEVISER ELECTRIC INSTR
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Problems solved by technology
[0004] In order to solve the problem of inconvenient operation and cumbersome work in setting parameters in measuring instruments supporting multi-touch screens, the present invention provides a technical solution for setting measurement parameters, which can save a lot of cumbersome data setting work
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Embodiment
[0038] 1. Prepare a spectrum analyzer that supports multi-touch screen. The spectrum analyzer consists of an ARM main control unit, a DSP measurement module and a display module including a multi-touch screen. The Android operating system is installed in the ARM main control unit.
[0039] Set the number of sampling points n of the spectrum analyzer as 501, the measurement frequency range is 5MHz-65MHz, and the measurement amplitude range is 0-80dBμV.
[0040] Set the screen abscissa range of the spectrum display area on the display module to be 5 to 849, and the screen ordinate range to be 50 to 354. The waveform abscissa of the spectrum is frequency, and its range is consistent with the measurement frequency range, which is 5 to 65. The waveform ordinate is amplitude, and its range is consistent with the measurement amplitude range, which is 0 to 80.
[0041] The ARM main control unit uses the data reading function of the Android SDK, and the DSP data reading interface rea...
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The invention provides a method of measuring parameters set by a measuring instrument for the purpose of supporting a multi-touch screen. The measuring instrument for the purpose of supporting the multi-touch screen comprises a main control unit based on an advanced RISC machine (ARM), a measuring module and a display module. A traditional method with a keyboard or a key to set parameters by the measuring instrument is changed, and the measuring parameters are set by using two-touch gesture operation on the multi-touch screen. The ARM-based main control unit calculates central points of connection line segments of starting positions and stopping positions of two touch points, according to an included angle of a connecting line of the two central points and an X-axis and two threshold valve set for the inclined angle, a horizontal coordinate or a vertical coordinate is decided to be independently set as required, or the horizontal coordinate and vertical coordinate parameters are simultaneously set, the set measuring parameters are sent to the measuring module, the measuring module processes wavy data by novel measuring parameters, and then the wavy data is displayed in the display module by the ARM main control unit, and thus the process that the measuring parameters are set by the gesture operation is completed.
Description
technical field [0001] The invention belongs to the technical field of measuring instruments. It is often necessary to set measuring parameters in measuring instruments. The invention relates to a method for setting measuring parameters for measuring instruments supporting multi-touch screens. Background technique [0002] In the field of measuring instruments, the measurement, processing and display of waveform data are usually controlled by setting measurement parameters. The traditional method of setting measurement parameters for measuring instruments is to use keyboards or keys to set each parameter one by one. If there are many measurement parameters that need to be set, the work will be very cumbersome, and the effect after parameter setting cannot be previewed. [0003] For multi-touch screens, smart terminal devices usually use gesture operations on it to zoom in and out of pictures, but this method only realizes changes in the display range of the interface, there...
Claims
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IPC IPC(8): G06F3/041
Inventor 蔡朝鹏陈光
Owner TIANJIN DEVISER ELECTRIC INSTR