Detection system and detection method for characters at bottom of bowl

Abstract

The invention relates to a detection system and a detection method for characters at the bottom of a bowl. The system and the method are used for on line detecting the characters at the bottom of the bowl of instant noodles. The detection system comprises an industrial camera, a computer, a programmable logic controller, two arrival sensors, an electromagnetic valve and an air faucet, wherein the first arrival sensor is used for sensing whether the instant noodles arrive or not, and a sensing signal of the first arrival sensor is transmitted to the programmable logic controller; the programmable logic controller triggers the industrial camera to photograph the bottom of the bowl of the instant noodles after receiving the sensing signal; an image obtained by the camera is transmitted to the computer; the computer processes the image, detects the characters at the bottom of the bowl of the instant noodles, and transmits a detection result to the programmable logic controller; and when the received detection result indicates that the characters are unqualified and after an arrival sensing signal is received from the second arrival sensor, the programmable logic controller controls the electromagnetic valve to act, so that the air faucet blows air to blow noodles with wrongly printed characters away from a nick of a production line. The system and the method are researched and developed on the basis of vision inspection, can be used for finishing much work instead of an operator, and are stable in performance, and the production speed is greatly increased.

Description

technical field [0001] The invention belongs to the food packaging industry and relates to production date detection equipment for template matching. technical background [0002] With the intensification of the trend of global economic integration, the competition among enterprises has also entered a state of incandescence. How to reassure consumers, win a good reputation for products, and then expand market share is a problem that every company that wants to become bigger and stronger must consider. [0003] The production date of the barreled instant noodles is printed on the bottom of the barrel. In view of this special position, it is not easy for the human eye to detect whether it is true or not in the production of instant noodles. It can only be sampled and checked or fuzzy to detect whether it is present. In this case, It may cause some unprinted, wrongly printed and heavy instant noodles to flow into the market, which will have some impact on the company's brand. ...

AI Technical Summary

Problems solved by technology

[0003] The production date of the barreled instant noodles is printed on the bottom of the barrel. In view of this special position, it is not easy for the human eye to detect whether it is true or not in the production of instant noodles. It can only be sampled and checked or fuzzy to detect whether it is present. In this case, It may cause some unprinted, wrongly printed and heavy instant noodles to flow into the market, which will have some impact on the company's brand

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