Fw: [新聞] 4支監視器畫面同消失80分鐘 洪仲丘家屬
※ [本文轉錄自 Gossiping 看板 #1HuH8E_X ]
作者: MoNeNe (=無欲則剛=) 看板: Gossiping
標題: Re: [新聞] 4支監視器畫面同消失80分鐘 洪仲丘家屬
時間: Sat Jul 13 16:38:35 2013
目前監視系統大部分都是採用 DVR系統
監視鏡頭 用同軸纜線 接到DVR主機
通常DVR主機最少都有4路 最多可以接到16路監視鏡頭
新聞說監視器四隻一起壞 我推測有以下可能
1. 禁閉室人員 心中有鬼 在虐待人之前 直接把DVR主機電源關掉
只要主機關了 四隻監視器就跟廢物一樣
2. 禁閉室人員 在虐待前把監視鏡頭的供電線拔掉
3. 事件發生後 從DVR主機將關鍵時刻抹掉
假設是第一種可能:
DVR主機 只要是停電、復電 開關機或是登入 都會有記錄擋 類似電腦的log檔
建議藥立即查扣該主機 看主機內的關機時間 如果剛好是在事發的時間帶
那很明顯就是有問題
假設是第二種可能:
同上,失去訊號已是會有記錄 而且拔除監視器電源不可能四隻同步
所以會有時間差 第一隻關閉 接下來是第二隻...
從錄影畫面可以判斷出來
假設是第三種可能:
這種發生的情形比較少 就我所知
DVR主機 沒有可以特別抹掉某一時段的功能 我不確定現在新主機有沒有這功能
如果刪 就是整個硬碟刪掉 整個格式化
況且新聞說 只有關鍵的那時段不見了
就算是不見也能從主機的log找到線索
總之 重點是要趕快把DVR主機扣下 裡面的log檔可以佐證人為蓄意的刪檔!!
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※ 轉錄者: ugvu (163.17.133.18), 時間: 07/18/2013 03:22:10
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