Method for calculating natural printing error of anti-counterfeiting two-dimensional code

Abstract

The invention discloses a method for calculating the natural printing error of an anti-counterfeiting two-dimensional code, and belongs to the technical field of error estimation. The method comprisesthe following steps of (1) determining the influence factors which cause the natural printing error of the anti-counterfeiting two-dimensional code; (2) respectively obtaining n monitoring values A corresponding to the influence factors in the previous step; (3) obtaining the total number L of cloud droplets according to n monitoring values A corresponding to the influence factors and a cloud model; (4) calculating n operation variation FA corresponding to the influence factors; and (5) calculating to obtain the natural printing error of the anti-counterfeiting two-dimensional code. Accordingto the method, the instability that the natural printing error of the anti-counterfeiting two-dimensional code is judged only by depending on the working experience of an operator is avoided, the probability of the natural printing error of the anti-counterfeiting two-dimensional code can be more accurately calculated, a reference value is provided for people in batch production, and the method has the positive significance in actual production.

Description

technical field [0001] The invention relates to an error calculation method, in particular to a natural printing error calculation method of an anti-counterfeiting two-dimensional code, belonging to the technical field of error estimation. Background technique [0002] The error is the measured magnitude minus the reference magnitude. The measured value is referred to as the measured value, which represents the value of the measurement result. The so-called reference quantity value is generally expressed by the true value of the quantity or the conventional quantity value. For measurement, people often regard the real size of a quantity itself when it is being observed as the true value of the measured value. In fact, it is an ideal concept. Because only "when a certain quantity is perfectly determined and all measurement defects can be eliminated, the quantity value obtained by measurement" is the true value of the quantity. From a measurement point of view, this is diff...

AI Technical Summary

Problems solved by technology

There are many reasons for accidental errors, for example, when reading, the position of the line of sight is not correct, the position of the measuring point is not accurate, and the experimental instrument produces small changes due to the influence of environmental temperature, humidity, unstable power supply voltage, vibration and other factors, etc.

The impact of these factors is generally small, and it is difficult to determine the size of the specific impact of a certain factor, so it is difficult to find out the cause of the accidental error and rule it out