How to calculate the speeding of high-speed speed measurement and photo taking?

Speed measurement on expressway generally includes fixed-point speed measurement, flow speed measurement and interval speed measurement. Generally, driving on the expressway, because of overtaking factors, as long as it does not exceed 10% of the speed specified on the expressway, it is not considered speeding. The difference between speeding and taking pictures illegally is that if you violate the rules, you will be fined; If you don't speed, you won't be fined.

How to calculate the speeding of high-speed speed measurement and photo taking?

Speed measurement on expressway generally includes fixed-point speed measurement, flow speed measurement and interval speed measurement. Generally, driving on the expressway, because of overtaking factors, as long as it does not exceed 10% of the speed specified on the expressway, it is not considered speeding.

The difference between speeding and taking pictures illegally is that if you violate the rules, you will be fined; If you don't speed, you won't be fined. Taking photos in violation of regulations refers to taking photos in violation of regulations with electronic eyes in traffic. The working principle is that the electronic eye senses the pressure of the car on the road through the induction line, and the signal is collected by the sensor to the central processor and sent to the register for temporary storage (the data is valid during the red light period).

High-speed surveillance cameras usually have two functions:

1. One is an ordinary camera, which is specially used to take photos of illegal driving, such as pressing lines and shooting rescue passages;

2. The other one is specially used for measuring speed. Among them, the speed monitoring camera system is expensive. From the cost point of view, not all monitors can measure speed, but the camera for measuring speed has the function of ordinary camera.

3. Speeding photography and monitoring photography are two different cameras. There are generally two kinds of cameras, one is high definition, which is mainly responsible for taking pictures in violation of regulations, because it can clearly capture the license plate number of motor vehicles and the appearance of drivers; Cars will be photographed when they run red lights or speeding. The traffic police fined according to this photo. This high-speed and high-sensitivity camera and flash have sensing devices.

What is the key to taking high-speed photos?

High-speed photography is mainly about shooting whether there is a violation of traffic regulations. Simply put, it is to take photos of speeding. Speed cameras are used to measure speed and catch speeding vehicles. Also known as bayonet, there is usually a black square radar velocimeter next to the camera.

Usually there will be a big sign prompting you to enter the interval speed measurement section. On national highways and provincial highways, if you see speed limit signs, there may be fixed speed measuring points ahead. The specific location is between "500 meters after the starting point of the speed limit sign and the lifting of the speed limit sign or the next speed limit sign", that is to say, the fixed speed measuring point will be set 500 meters away from the speed limit sign, not beside it.

High-speed interval velocity measurement is a very common acquisition system. The principle of interval speed measurement is that you can judge whether you are speeding by taking two photos in the speed measurement interval and comparing the time of the two photos.

Simply put, interval speed is equal to interval distance divided by running time. For example, suppose the interval speed mileage is 120km, just like the speed limit of this section is 120km/h. If the car drives for one hour or more, the average speed is less than120km, and less than one hour is speeding. How to calculate the overspeed of high-speed photography What is the key to high-speed photography @20 19