Fencing is a traditional sport with a long history. As early as ancient times, the sword was a tool for human beings to fight and hunt wild animals in order to survive. With the development of human history, the sword has developed from stone and bone to bronze and iron, and finally to steel. As a weapon of war, it has gradually stepped onto the historical stage.
Fencing is very popular in ancient Egypt, China, Greece, Rome, Arabia and other countries. 1 1 century BC, fencing classes appeared in ancient Greece, and swordsmen gave lectures. As for the ancient forms of fencing, the reliefs about fencing can be seen in some historical buildings and monuments in Greece, Egypt and other countries.
Fencing competitions are held on metal runways with a length of 14m and a height of 10 to 50cm. The role of the metal track is that athletes intentionally or unintentionally stab in the competition field without signal display. There is a tray at each end of the metal tunnel, which contains wires that can enter and exit freely. This thread is connected with the thread on the athlete, and this thread on the athlete is connected with the sword.
In this way, the two players, the referee and the mop are connected with each other to form a loop circuit. Whenever one side stabs the other side with enough pressure, the circuit is connected and the referee signals the referee. This device can help the referee to analyze and judge.