Solid electronic instrument using pointer cursor instead of movable pointer

Abstract

The present invention provides a solid state electronic instrument substituting pointer cursor for movable pointer. Said solid state electronic instrument includes power supply, data processing device, signal circuit and display circuit. The sigal outputted by sensor of signal circuit is transferred into the signal processing circuit, processed by signal processing circuit and outputted to data processing device. The display circuit includes matrix formed from several LED which are successively arranged on the meter panel as pointer cursor, every LED respectively is connected with line input circuit and column input circuit. After the signal inputted by signal circuit is received by data processing device an output signal to display circuit can be set according to program, the LED can be correspondently lighted or gone out to display indication correspondent to the measured electric quantity.

Description

Technical field: [0001] The utility model belongs to the technical field of solid-state electronic instruments. Background technique: [0002] For many years, movable pointer instruments have been used in the field of measurement technology. Its advantages are intuitive and obvious. In most cases, observers only need to glance at the angle and position pointed by the pointer to roughly judge the indicated value. There is no need to carefully read its accurate readings, which is very convenient in many occasions, such as reading the instrumentation of a car running at high speed and the instrumentation that needs to be read remotely; the disadvantage is that the rotating components in the instrumentation are easy to wear due to frequent rotation, especially in strong vibrations It is more vulnerable to damage under certain conditions and has a short lifespan. Known technical digital electronic instruments, the measured parameters are displayed in numbers. Since there are no ...

AI Technical Summary

Problems solved by technology

[0002] For many years, movable pointer instruments have been used in the field of measurement technology. Its advantages are intuitive and obvious. In most cases, observers only need to glance at the angle and position pointed by the pointer to roughly judge the indicated value. There is no need to carefully read its accurate readings, which is very convenient in many occasions, such as reading the instrumentation of a car running at high speed and the instrumentation that needs to be read remotely; the disadvantage is that the rotating components in the instrumentation are easy to wear due to frequent rotation, especially in strong vibrations More vulnerable to damage under conditions, not long life

Known technical digital electronic instruments, the measured parameters are displayed in numbers. Since there are no rotating components, the shortcomings of easy wear and short life are avoided, but there are still shortcomings, which is that the digital display mode is not intuitive enough when reading. The observer can only determine the indicated value after reading each digit accurately, so it takes a long time to read, which brings inconvenience to the observer, and in some occasions such as driving a high-speed car, It is impossible and unnecessary for the driver to spend a long time to accurately read every digit of the instrument

Chinese Utility Model Patent Specification ZL93239300.4 "Full Electronic Automobile Instrument" discloses an automobile instrument that uses numbers and luminous points to display automobile technical parameters. And the light spot also takes a long time, which brings inconvenience to the user. In addition, the instrument is composed of multiple digital integrated circuits, and the structure is relatively complicated.

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