條碼掃描

條碼掃描器設在總圖入口.
讓學生證條碼的中央點對準鐳射光點片刻, 待機器驗證成功後, 入口閘門才會開啟.
以往只有進入才需要這項手續, 前年為了加強保安, 出入都需要刷卡.

滑鼠, photoshop
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