EvidenceCam for iPad
1.照片的标题包含GPS坐标,街道地址 (在开放领域拍摄的照片可以关闭街道名称),时间/日期戳。时间/日期戳使用UTC格式的NTP (国家时间协议)。如果NTP服务器无法访问,..
基本信息
- 更新日期:
- 版本:
- 3.0
- 大小:
- 43.8 MB
- 类型:
- 摄影与录像
- 平台:
- iPad
- 评分:
- 发布日期:
- 2017-09-05
- 价格:
- ¥12
- 开发者:
- App Holdings
EvidenceCam for iPad应用截图
EvidenceCam for iPad应用简介
1. Header of photo contains GPS coordinates, street address (street name can be turned off for photos taken in open fields), time/date stamp. Time/Date stamp uses NTP (national time protocol) in UTC format. If NTP servers are unreachable, the device’s time/date will be used in the header and will be signified using an asterisk * next to the time.
2. Footer of photos contains option for (a) add left-aligned text from a drop-down menu with the prefixes of #, File #, Case #, Report #, Project #, Subject, Victim, Suspect, and Witness; and (b) users to insert their own right-aligned identifying alphanumeric text.
3. GPS location can be refined only by up to 100 yards. If the user changes the location by more than 100 yards these changes are discarded.
4. Notes section allows user to input notes regarding photos for later reference.
5. Scanner allows to capture documents/photos using camera and converting them into PDF format for emailing.
Note: Photos cannot be imported for time/date stamping. local time zone cannot be used.
***About UTC***
The app does not use the device’s time or time zone because users can alter the date/time of their device, which resultantly changes the timestamp on the photo. This of course creates a significant issue regarding evidentiary integrity. Though you may not be using the app for evidence and only need a basic timestamp, the intended use of the app is for evidentiary purposes.
The app uses NTP (national time protocol), which uses the UTC international time standard. Due to the irregularity of the earth and the sun’s movements, the exact time needs to be modified occasionally through the use of leap seconds. UTC provides this precise accuracy of time. UTC is based on zero degrees longitude and passes through the Greenwich Observatory so that atomic time is utilizes and leap seconds are added to the clock every so often. UTC was used beginning in the mid-twentieth century but became the official standard of world time on January 1, 1972.
UTC is 24-hour time, which begins at 0:00 at midnight. 12:00 is noon, 13:00 is 1 p.m., 14:00 is 2 p.m. and so on until 23:59, which is 11:59 p.m.
Because UTC time is indicated on the photo, users need to add/subtract their time zone differences to determine the image’s local time. Users can find their time zone difference here: http://www.timeanddate.com/worldclock/converter.html
Obviously, it would not be fair to have the timestamp permanently maintain a specific time zone – others users in different time zones would not take kindly to this. UTC is the only time zone universally accepted around the World.
中文翻译
1.照片的标题包含GPS坐标,街道地址 (在开放领域拍摄的照片可以关闭街道名称),时间/日期戳。时间/日期戳使用UTC格式的NTP (国家时间协议)。如果NTP服务器无法访问,则设备 的时间/日期将在标头中使用,并在时间旁边使用星号 * 表示。
2.照片页脚包含选项 (a) 从下拉菜单中添加左对齐文本 # 、文件 # 、案例 # 、报告 # 、项目 # 、主题、受害者、嫌疑人和证人; 以及 (b) 用户插入自己的右对齐标识字母数字文本。
3.全球定位系统的位置可以完善只有100码。如果用户将位置更改超过100码,则这些更改将被丢弃。
4.注释部分允许用户输入有关照片的注释以供以后参考。
5.扫描仪允许使用相机捕获文档/照片,并将其转换为PDF格式进行电子邮件发送。
注意: 无法导入照片进行时间/日期加盖。不能使用本地时区。
*** 关于UTC ***
该应用程序不使用设备的时间或时区,因为用户可以更改其设备的日期/时间,从而更改照片上的时间戳。当然,这就造成了一个关于证据完整性的重大问题。虽然您可能不会使用该应用程序进行证据,并且只需要一个基本的时间戳,但该应用程序的预期用途是为了证据目的。
该应用使用NTP (国家时间协议),该协议使用UTC国际时间标准。由于地球和太阳运动的不规则性,准确的时间需要偶尔通过使用闰秒来修改。UTC提供了时间的这种精确精度。UTC以零度经度为基础,通过格林尼治天文台,从而利用原子时,并每隔一段时间将闰秒添加到时钟中。UTC在二十世纪中期开始使用,但在1972年1月1日成为世界时间的官方标准。
UTC是24小时,从午夜零时开始。12:00是中午,13:00是下午1点,14:00是下午2点,以此类推,直到23点59分,也就是晚上11点59分。
因为照片上注明了UTC时间,用户需要加减他们的时区差异来确定图片 的本地时间。用户可以在这里找到他们的时区差异: http://www.timeanddate.com/worldclock/converter.html
显然,让时间戳永久维护特定时区是不公平的-其他位于不同时区的用户不会对此采取善意的做法。UTC是世界各地唯一普遍接受的时区。