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基于数字电路的自助式红绿灯设计

更新时间:2020-08-11 01:01:06 大小:590K 上传用户:zhiyao6查看TA发布的资源 标签:数字电路自助式红绿灯 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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在某些特殊路段,自助式红绿灯可以改变传统红绿灯固定变化带来的交通不便等问题。其功能为当无人过马路时,主干道将持续保持绿灯,保证主干道的车辆正常行驶;当行人需要通过路口时,按下请求按钮,等待数秒后,主干道由绿灯转为红灯,车辆禁行,人行道的红灯转为绿灯,行人通过;在等待与通行期间,多次按按钮,不会改变当前状态。系统设计以两个芯片74LS192的级联实现红绿灯的倒计时,用74LS90实现红绿灯状态的转换,倒计时显示采用七段数码管,用双D触发器CD4013实现按钮状态锁定,并用proteus软件对电路进行仿真和调试,基本满足设计要求,具有实用性、人性化、易操作、造价低等特点。

In some special sections,self-service traffic light can change problems such as traffic inconvenience brought by the fixed change of traditional traffic light. When no one is crossing the road,the road will continue to be a green light,to ensure that vehicles on the main road run normally. When pedestrians want to cross the intersection,press the request button,and wait for a few seconds,the main road traffic light will change the green light to the red light,vehicles are forbidden of driving,the red light of the pavement turns green,pedestrians pass. During the period of waiting and transit,press the button many times will not change the current state. ...

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基于数字电路的自助式红绿灯设计.pdf 590K

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