| More and more high-tech technologies are being applied,including "video assistant referees".The referee,as the law enforcer on the football field,is thinking about the decision every minute of the game,and this decision needs to be completed under the circumstance of a lot of physical consumption and a variety of objective factors.Obviously,referees need a revolutionary technique to help them do their job better.As an emerging technology,video assistant referee is integrated with referee team.And how to help the referee to better finish the game,it is particularly important.This paper by comparing the use of video assistant related in the sense of the 2018 season of the decisions and use the video assistant sense of relevant decisions of the 2019 season,intentions for the application of video assistant referee in our league,and how the referee in a video assistant under the condition of reasonable enforcement of board to provide the reference and suggestion.Research conclusions include:1.There are more goals scored or missed in 2019 than in 2018,and there are significantly more goals scored or missed in 2019 than in 2018 in rounds 11 to 20.Goals scored or missed in the 2019 season were significantly less in the 61-75 minutes than in the 2018 season,and significantly more in the 76-90 minutes than in the 2018 season.There were significantly fewer goals or misses due to foul or foul in2018 than in 2019,and significantly more goals or misses due to offside in 2019 than in 2018.This is mainly due to the assistant referee’s reliance on the video assistant referee’s inspection.2.The number of penalties in 2019 is higher than that in 2018.There is no significant difference in the number of penalties between the two seasons.In the 2018 season,ball penalties mainly occurred in the 45 to 60 minutes and 76 to 90 minutes,while in the 2019 season,ball penalties occurred in the 76 to 90 minutes.The number of penalties for kicking or attempting to kick,tripping or attempting to trip up was significantly higher in 2019 than in 2018,due to the fact that the two types of fouls were relatively hidden and hard to identify,and the video assistant referee played a positive role in this situation.3.The number of penalties in the 2019 season is more than that in the 2018 season and significantly more than that in the 1-10 rounds of the 2019 season.This is because athletes did not adapt to the previous season when there was no video assistant referee.This was significantly more in the 31-45 minutes of the 2019 season than in the 2018 season;A second warning in a game was the most likely cause of foul play in 2018,with the number of serious fouls significantly higher in 2019 than in 2018.4.In both the 2018 season and the 2019 season,the referee once gives a wrong penalty object when executing a warning or a penalty order against the offending team;Two seasons to deal with the situation is close;This happens before the first half of the 2018 season and before the second half of the 2019 season;In the 2019 season,more people are involved and referees give more severe disciplinary penalties.It is also noteworthy that the video assistant referee did not play his due role in this incident.Because the video assistant referee checks out the previous season’s dismissal orders for serious fouls that the referee had downgraded. |
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