Control system and method

Abstract

The invention discloses a control system and method. The system includes a FPGA processing chip which is used for receiving a measuring signal of a to-be-measured device from a grating scale and converting the measuring signal to a digital signal; a processor which includes a receiving module, a displacement value determining module, a determining module, a device control module and a device control interface, wherein the receiving module is intended for receiving the digital signal from the FPGA processing chip, and the displacement value determining module is intended for determining a displacement value based on the received digital signal, and the determining module is intended for determining whether the to-be-measured device has abnormity based on the determined displacement value, and the device control module is in communication with the to-be-measured device through the device control interface and transmits a shutdown instruction to the to-be-measured device through the device control interface when the determining module determines that the to-be-measured device has abnormity. According to the invention, the system and the method can avoid processing when a device has abnormity and guarantees product quality.

Description

technical field [0001] The present invention relates to the field of measurement control, and in particular, to a control system and method. Background technique [0002] As an effective tool for precision mechanical measurement, the grating ruler has been widely used in the measurement of online displacement, angular displacement, velocity, acceleration and other engineering. In length measurement, the grating ruler can achieve um-level measurement accuracy, and at the same time, it can dynamically collect the change of length, so that the movement speed and even the acceleration can be accurately calculated. In surface measurement, compared with traditional three-coordinate machines and profilers, grating rulers also have the advantages of dynamic detection of surface shape changes, high precision, and real-time output of surface shape data. [0003] With the rapid development of science and technology, processing plants are developing in the direction of automation and i...

AI Technical Summary

Problems solved by technology

This solution discloses reporting the measurement data of the grating ruler to the host computer, but when the measurement result of the grating ruler indicates that the device under test is abnormal, if the processing equipment continues to perform processing operations, it will not only lead to the emergence of unqualified products, but also May damage processing equipment or even produce production accidents

For this situation, the patent does not propose a solution

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