http://roadsafety.transport.nsw. ... howdo_theywork.html
Instant detection
Speed cameras detect the speed of vehicles by using detectors embedded into the road surface or radar technology. Red-light speed cameras also detect vehicles travelling over the stop line or entering the intersection after the lights have turned red. If the speed of the vehicle exceeds the legal limit, or a vehicle runs a red light, a digital picture is taken of the offending vehicle.
What does the camera record?
If an offence is detected, a digital image of the vehicle is recorded. The image clearly shows the colour, type, make and numberplate of the vehicle. Digital images also include:
•Date of the offence
•Time of the offence
•Location details of the camera that took the picture
•Direction of travel of the offending vehicle
•Speed of the offending vehicle
•Speed limit on the road where the camera is positioned
•The lane that the vehicle was travelling within
•Other security and integrity parameters
How do speed cameras work in multi-lane situations?
Speed and red-light cameras can monitor multiple lanes with the use of detectors embedded into the road surface or radar technology. Vehicles cannot avoid camera detection by straddling lanes.
Can the cameras identify a speeding vehicle in a line of traffic?
A speeding vehicle can be detected and photographed even if it is within a line of vehicles. The angle at which the cameras are set enables pictures to be taken, even if another vehicle is close by.
How do I know that information recorded is secure?
The original recorded images are stored digitally and cannot be overwritten or altered. A security indicator prevents any attempt to tamper with the image at any stage. All images and relevant information (such as time, date and location) is encrypted. The original image forms the basis of the evidence produced in court. By law, the photographs from speed cameras can be tendered as evidence in court, together with appropriate evidentiary certificates signed by an expert.
How do I know that the camera system is accurate and reliable?
Speed and red-light camera systems (including the digital camera recording device and the associated speed-measuring device) chosen for NSW undergo a comprehensive evaluation and testing procedure to ensure accuracy and reliability. Transport experts inspect each camera system and verify its accuracy and proper operation before the commencement of the camera operation, and thereafter at regular intervals. The camera recording device is inspected every 30 days and the speed-measuring device is inspected at least every 12 months in line with current legal requirements. An inspection is also conducted after any maintenance or repair of either of these devices.
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© Transport for New South Wales Last Updated: 02 December 2015
评论
你这转一篇e文，不太靠谱吧？至少也翻译一下哇。
评论
哪有这么多时间。
Google 一下
即时检测
高速摄影机通过使用嵌入到路面或雷达技术检测器检测车辆的速度。红光速摄像机还检测车辆在停止线行驶或进入路口灯变为红色后。如果车辆的速度超过法定上限，或车辆闯红灯，数字图像被拍摄的违规车辆。
什么相机记录？
如果检测到犯罪，车辆的数字图像被记录。该图像清楚地显示的颜色，类型，制造和车辆的号牌。数字图像还包括：
•罪行的日期
•罪行的时间
•位置是拍了照相机的细节
•违规车辆的行进方向
•违规车辆速度
•在道路上限速相机进行定位
•车辆是在行驶车道
•其他的安全性和完整性参数
如何在多车道的情况下，高速摄像机的工作？
速度和冲红灯摄影机可以监控与使用嵌入路面或雷达探测技术的多个通道。车辆不能跨越车道以免相机检测。
相机可在线路的流量识别超速车辆？
超速行驶的车辆可以检测和拍摄哪怕是一条线的车辆内。在该所设置的摄像头使图片的角度进行拍摄，即使有其它车辆附近。
我怎么知道信息的记录是安全的？
原始拍摄的影像数字化存储并不能被覆盖或改变。一个安全指标阻止任何企图在任何阶段的形象篡改。所有图像和相关信息（例如时间，日期和位置）被加密。原始图像形成在法庭上出示的证据的基础。根据法律规定，从测速摄像头拍摄的照片可以由专家签署相关证据证明的，招标作为法庭证据，共同提高。
我怎么知道，摄像系统准确可靠？
速度和所选择的新南威尔士州冲红灯摄影机系统（包括数码相机记录设备和相关的测速设备）进行全面的评估和测试程序，以确保准确性和可靠性。交通运输专家定期检查每个摄像系统和摄像机的操作开始之前验证其准确性和正常运行，此后。的摄像装置。每30天检查和速度测量装置进行检查，至少每12个月符合现行法律规定。进行视察，任这些设备的维护或修理后还进行。
评论
签名里的d8超速了
评论
这发出来是干什么用
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