change number plate

Abstract

The invention relates to a number changing plate, which includes several lamp groups for displaying numbers, an accommodating frame, a main power switch key, a group of on and off sign lights, a power supply and a control circuit. The accommodating frame is provided with several accommodating parts, the accommodating parts are used to accommodate a lamp group and an on-off switch for switching the lamp group, the on-off switch is located below the lamp group, the on-off switch and the The lamp group is electrically connected. The operator can press the lamp group to close the on-off switch corresponding to the lamp group. When the lamp group is pressed again, the on-off switch at the corresponding position is turned off, the circuit where the lamp group is located is disconnected, the lamp group is turned off, and thus the lamp group is extinguished. The number changing plate of the invention has low production cost, extremely intuitive, clear and simple operation, high reliability and great development prospect.

Description

technical field [0001] The invention relates to a number-changing board used in sports competitions, in particular to an electronic number-changing board with high reliability and quick and easy operation. Background technique [0002] With the development of the economy and the improvement of people's living standards, the development of sports competitions has become more and more abundant and diversified. Correspondingly, people have higher and higher requirements for the equipment and props required for sports activities. The investment in technology has also made sports equipment and props more and more technological, humanized, and multi-functional. As a number plate for changing people in sports competitions, it is widely used. [0003] But most number changing plates are simply two wooden boards with numbers written on them. This type of number change plate is suitable for use during the day and small games, but not for night or large games. There is also an electr...

AI Technical Summary

Problems solved by technology

This type of electronic number changing plate often uses LED light source, which can be clearly recognized at night. The operating characteristics of this type of electronic number changing plate are: most of them have a + (plus) button and a - (minus) button , when it is necessary to change players, the operator presses the + (plus sign) button and - (minus sign) button to adjust the number of the player who is replaced and the number of the player who is replaced. The operation is not difficult, but it is not intuitive, and if you encounter The number of athletes is relatively large, and it often takes half a day to operate, and the timeliness is not strong

In addition, there is also an electronic number change board with a remote control. When personnel replacement is required, the operator uses the remote control to point at the number change board and press the corresponding number to enter the numbers of the personnel on and off the field. This type of electronic number change board The disadvantage is that the remote control needs to be aimed at the infrared receiver on the number plate. If it is not accurate, the signal will not be received. The second is that if the battery of the remote control is dead during the game, it will affect the progress of the game.

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