1. Enhance winter driving safety awareness
Winter has more frost, more fog, more rain and snow, lower temperatures, and a complex environment, which has a greater impact on driving safety. Drivers should improve their knowledge of safe driving in winter, strengthen their knowledge and skills in winter driving, prevent frost, skid, and accidents, and master the methods for handling common problems in winter driving. Never use the driving habits of other seasons in winter.
2. Keep up to date with road conditions
Before traveling by car, grasp the road condition information through TV, radio, etc. in advance, and prepare for the response in advance.
3. Seasonal maintenance of vehicles
Carry out seasonal maintenance of the vehicle, carry out a comprehensive inspection and maintenance of the vehicle braking, steering and other systems and gas pipelines, water pipelines, oil pipelines and other components, equip the vehicle with the necessary antifreeze devices, add oil and gears as required oil.
4. Antifreeze
During the routine maintenance of the vehicle, it is possible to add ordinary water to the antifreeze, and the antifreeze must be replaced. Make up for the lack of coolant, otherwise the engine water temperature will be too high, resulting in damage to engine parts. The replacement of the antifreeze must be strictly in accordance with the product usage method. The key is to pay attention to putting as much clean water as possible, exhausting the gas as much as possible, not creating "air resistance", and adding as much as possible. Observe the situation and make up the right amount. To do diligent inspections and diligent supplements.
Fifth, battery warming and charging
The accumulators of automobiles are mostly lead-acid batteries. In severe cold environments, the efficiency is often reduced due to freezing. Appropriate measures can be taken to keep the accumulator warm and charged.
Six, pay attention to check the tires
The temperature in winter is cold, and the rubber is relatively hard and brittle in a low temperature environment. Therefore, whether the air pressure is appropriate directly affects the tire life and driving safety. If the air pressure is too low, the tire wall flexure will increase, and the low temperature will easily break the tire wall rubber; too high air pressure will reduce the tire grip. Pay attention to check whether the inflation of each tire is balanced. It may also be considered to replace vehicle tires with winter tires in winter.
7. Installing snow chains in icy and snowy weather
In snowy and snowy weather, snow chains should be installed before traveling, and do not install after encountering snow and ice roads, because the installation of snow chains for temporary parking is more troublesome than prior installation and is not conducive to safety. The vehicle should be parked in a safe area before installation and disassembly. If you are on a busy road, you need to set up necessary traffic warning signs. After installing snow chains, the driving speed should generally not exceed 50 kilometers per hour, and pay attention to avoid sudden acceleration or deceleration as much as possible. And consider carrying anti-slip tools such as shovels and picks.
8. Remove fog in time
In winter, the temperature difference between indoor and outdoor will make the windows condensate, and the front doors and windows will be opened a little while the mist is defrosted with warm air. The effect is very rapid and effective. Attention should also be paid to defogging the rear window to observe the situation behind the vehicle and enhance the safety of the reversing process.
The aspheric lens uses a single element design, which helps reduce the number of lenses in the optical assembly. Unlike spherical lenses, aspheric lenses have a more complex surface, and the curvature of the surface gradually changes from the center of the lens to the edge of the lens. The most significant advantage is that it can correct the spherical aberration caused by the Spherical Lens in the collimation and focusing system. One of the applications of aspheric lenses includes focusing the output from a laser diode, which not only reduces the overall cost, but also outperforms components designed using traditional spherical optical lenses.
The asphere's more complex surface profile can reduce or eliminate spherical aberration and also reduce other optical aberrations such as astigmatism, compared to a simple lens. A single aspheric lens can often replace a much more complex multi-lens system. The resulting device is smaller and lighter, and sometimes cheaper than the multi-lens design.Aspheric elements are used in the design of multi-element wide-angle and fast normal lenses to reduce aberrations. Small molded aspheres are often used for collimating diode lasers.
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