Solar road stud (solar road stud or solar road marker) is a kind of road stud. It is set along the road surface and used to indicate the direction of the road at night or in rainy and foggy weather. It is composed of retroreflective material, shell, solar panel, led and controller. It is a visual guidance facility with active light and passive reflection performance. It is usually used in combination with marking. 
Chinese name solar road stud foreign name solar road stud category road stud usage at night or rain fog weather indicates the direction of the road
3 working principle
4 performance index
▪ Compressive properties
▪ Sealing performance
▪ Battery matching performance
▪ Environmental adaptability
5 Application Form
▪ Compression value is unqualified
▪ Pseudo reflection
Generate background editing
Due to the continuous development of the solar energy industry, in recent years, in the national highway safety assurance projects, various high-tech traffic safety devices
Visibility pictures on motorway in fog
Visibility pictures on motorway in fog (2)
Shihe products are favored by the industry. The extensive application of these traffic safety facilities and products has played an important role in improving road traffic safety and reducing traffic accidents. Among all kinds of traffic safety facilities or products, solar energy road studs can clearly mark the road outline and edge in rainy, foggy weather and road curve, guide the driver's vision, and then eliminate the hidden danger of road safety. The solar energy spike can play an important role in the rain and fog weather, as well as in the curve to draw the road outline, guide the driver's line of sight and eliminate the safety hazards.
The reflective brightness of ordinary road studs is only 300-400 MCDs, while the luminous brightness of solar road studs can reach more than 2000 MCDs, which is 6-7 times of the former. The high-intensity light can break through the rain fog at night and guide the driver safely and effectively.
Active lighting, dynamic warning
The solar spike flashes at a certain frequency at night, and the human vision is more sensitive to changes, so its dynamic warning function is very strong. Active light-emitting can not only avoid the interference of rain and fog to the greatest extent, but also get rid of the dependence on car lights, with a longer visual distance and better effect.
Solar studs play a very important role in the rain and fog weather and in the curve of the road contour, guide the driver's line of sight and eliminate safety hazards.
How it works edit
During the day, solar panels absorb sunlight and convert it into electricity,
Raised solar spike
Raised solar spike (2 pieces)
Stored in the energy storage device (battery or capacitor), at night, the electric energy in the energy storage device is automatically converted into the light energy (controlled by photoelectric switch), and the road outline is drawn by the light emitted by the led to guide the driver's line of sight.
According to the different installation positions, the solar studs can be divided into embedded type and protruding type.
The former is generally used in the center line, while the latter is generally used in the edge line. This is because the requirements for compressive performance of the solar studs installed in the middle line are particularly high. In order to solve this problem, we have to embed the solar studs in the ground, only about 5 mm above the ground. However, the solar studs used in the edge line do not have very high requirements for compressive performance, and they can still work effectively when protruding from the ground.
According to the different energy storage components, the solar spike can be divided into two types: capacitive type and battery type. The former has a service life of five to seven years, while the latter has a service life of one to three years.
Because the embedded solar studs do great damage to the road surface, and the cost of the capacitive solar studs is too high, so the most widely used solar studs are the convex solar studs.
Edit performance index
The performance of a solar spike is measured from the following aspects.
If the solar spike can't bear certain pressure, it will easily break down after the car is rolled or impacted, so it can't work normally, so compression is a basic condition for the normal work of the solar spike. But the problem is that the solar spike itself is an electronic product, including the electronic part. It is not easy to make the electronic part have a higher degree of compressive performance, so generally speaking, the compressive performance of the solar spike is worse than that of the ordinary spike. As of 2014, the technical requirement of the Ministry of transport is 10 tons.
There are several ways to effectively improve the compressive performance of the solar spike: first, the exposed solar panel adopts PC bulletproof material to enhance the compressive capacity of the electronic part; second, IC control is used as far as possible to reduce the volume of the electronic circuit and reduce the pressure on the electronic part; Third, some stiffeners are designed on the shell to share the pressure of the electronic part.
If the solar spike is not completely sealed, it will naturally leak water, which will cause a short circuit in the circuit, and the consequences are catastrophic, so a qualified solar spike sealing performance must also pass the test.
There are several ways to improve the sealing performance of solar energy spikes:
(1) Separation design. LED lamp shade and internal circuit board adopt isolation design, even if the LED lamp shade is broken, the interior of the solar spike is still guaranteed not to leak water;
(2) Strong neutral bonding material is used to ensure that the solar panel, LED lampshade and the spike shell are closely bonded without any gap in the middle.
Compared with the reflective road studs, it has a very important feature of high luminous intensity. This indicator is required by the Ministry of transport to be 2000 MCDs.