Anti-pet stampede alarm and its method for measuring the lengths of several areas simultaneously

Abstract

The anti-pet stampede alarm and the method for simultaneously measuring the lengths of several areas include two parts: the anti-pet stampede alarm and the method for simultaneously measuring the lengths of several areas; A rectangular frame, a battery pack, a single-chip microcomputer system, a series-in parallel-out circuit, a parallel-in series circuit and a music circuit are composed, wherein, the upper part and the bottom part of the rectangular frame are respectively provided with column and row electrode groups, and the wires are respectively connected to Parallel input terminals of the serial-in circuit and parallel output terminals of the serial-in-parallel-out circuit are incorporated. The program establishes a two-dimensional coordinate system according to the arrangement of the wires of the two electrode groups, scans and detects the trampled area with the help of a single-chip computer, tracks the contours of each area, uses ordinal numbers to mark the areas within each contour, calculates the distance between contour points and saves its size Or, judge the foot type and decide whether to send out the alarm sound. The method of measuring the length of the region is complete.

Description

technical field [0001] The invention relates to the technical field of security electronics, in particular to a pet-preventing alarm device and a method for simultaneously measuring the lengths of several areas. Background technique [0002] In July 2010, the invention patent "Anti-Pet Stampede Alarm and Its Method of Measuring Area Length to Distinguish Foot Type" submitted to the Patent Office of the State Intellectual Property Office for examination, proposed a method of measuring the length of the trampled area with the help of single-chip microcomputer technology By distinguishing the trampled by people and small animals, the anti-pet stampede alarm only warns trampled by people and ignores trampled by pets, which is suitable for anti-theft alarm work. But, from a theoretical point of view, several areas may be trampled on at the same time, and the length of the trampled area obtained by the method cannot be clearly assigned. Moreover, as the number of times of tracing ...

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Problems solved by technology

[0002] In July 2010, the invention patent "Anti-Pet Stampede Alarm and Its Method of Measuring Area Length to Distinguish Foot Type" submitted to the Patent Office of the State Intellectual Property Office for examination, proposed a method of measuring the length of the trampled area with the help of single-chip microcomputer technology By distinguishing the trampling of people and small animals, the anti-pet trampling alarm only warns of trampling of people and ignores trampling of pets, which is suitable for anti-theft alarm work

But, from a theoretical point of view, several areas may be trampled on at the same time, and the length of the trampled area obtained by the method cannot be clearly assigned. Moreover, as the number of times of tracing the contour of the same trampled area increases, the measurement The result will shrink "round and round"

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