竞走在实际训练、比赛中队员有犯规嫌疑就会被警告,但没有什么可靠的依据.运动员如果满足竞走定义,有犯规嫌疑,就被裁判警告并罚下场,这样有时就会对有些运动员不公平.根据竞走的定义和核心规则,分析竞走在比赛、训练中存在的问题,并结合实际情况,采用555时基电路设计了一种多功能的竞走技术检测器,并介绍了安装方法.该设计主要针对双脚离地犯规进行检测,如果运动员双脚同时离地犯规红外线检测仪就能检测到,同时计数器计数1次,蜂鸣器也发出声音提示运动员犯规.%In practical training and competition,the athletes with foul suspicion will be warned,which has no reliable foun-dation. The athletes with foul suspicion will be warned and sent off,if they meet the definition of race walking. It is unfair to some athletes,anyway. According to the definition and core regulation of race walking,the problems of race walking in competi-tion and training are analyzed. A multifunction detector for race walking technology was designed with 555 time-base circuit in combination with the actual situation. The installation method is introduced. This detector is mainly used to detect the foul of ath-letes,whose both feet leave ground simultaneously. The counter of the detector counts once simultaneously and the buzzer makes a sound to remind of the foul to the athletes when it detects a foul,.
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