Brief Introduction of Automatic Lifting Column in Vehicle Access Management System
Access control and other ways to raise the column: After the legal vehicle passes, the control unit receives the switch signal and drives the lifting column to fully raise. The signal can be given by buttons, access control and other protection methods: when a vehicle stays above the lifting column, the column does not rise. The priority of the protection method is higher than the priority of the ascending command; however, the protection of passing vehicles cannot be achieved through infrared, ground sense and other protection systems. After power off, the lifting column automatically releases the channel. You can continue to work for several cycles depending on the retained air pressure. The cost of the lifting column is much higher than that of the road gate. Especially the imported columns are tens of thousands of yuan. They are mainly used to control the passage of road vehicles. They are specially designed for the area to prevent non-permitted vehicles from forcing in. They have a very high Practicability, reliability and safety. It is much faster than the expansion and contraction of the telescopic door and much wider than the channel controlled by the gate. It can be said that it has its unique performance advantages.
Barrier gate systems are not used in many places now, because barrier gates are installed on the ground after all, which has a certain hindrance and affects the appearance of the site, especially in high-demand occasions, or where barriers cannot be installed. This requires the installation of lifting columns. On some occasions, where there are both large and small vehicles entering and exiting, and it is necessary to distinguish the entry and exit of small vehicles, it is necessary to use a lifting column, and then use a coil-type low-frequency long-distance card reader, all buried. Does not affect the appearance of the scene and the use of channels. The working mode can be achieved: the column is lowered: after legal authorization verification, the control unit drives the lifting column to lower after receiving the switch signal, and keeps parallel with the road surface to release the vehicle. The authorization method can be a button.
Products are widely used in many occasions such as urban transportation, gates and surroundings of important institutions, pedestrian streets, highways, toll gates, airports, schools, banks, large clubs, parking lots, etc. By restricting the passing vehicles, the traffic order, that is, the safety of the main facilities and places is effectively guaranteed.
HR STONE has been in natural stone business
since 1995.we mined Semi Precious Stone
rough for recent years, mainly Blue Sodalite and Tiger Eye rough, specially
blue sodlite:
Blue sodalite quarry yield two kins of
blocks: big size blocks and small size blocks. Max size of big block can be about 250*180cm and weight
about 15-20 ton per block. Small block has two sizes: 3-10cm 10-30cm . Annual yield of blocks is about
100containers.We also have two blue sodalite color classifications, one is blue mainly,
one is blue and white mixed.
According to the color purity and texture,
the blocks have different ranks for your reference.
We ship the blocks to China and produce
them into finished products, such as translucent blue sodalite slabs, table and arts. Whether
super blue color or blue and white mixed, you can find out the right color you
favor from our blue sodalite blocks and finished product.
We normally produce translucent blue
sodalite slab with small blocks, so the blue sodalite is laminated with natural
or artificial stone, glass, or Acrylic.
If you prefer blue sodalite slab is
translucent you can chose slab laminated with glass. Transparent blue sodalite
is full of bright and fantastic colors
and atmosphere.
As blue is rare color in natural stone,
Blue sodalite is very suitable to be produced as translucent plate, table top,
wall and floor tiles.
Tiger Eye only has small size blocks, we
have super rank ( super gold color) and commercial rank. Tiger eye is very
suitable for wall and floor tiles, table, countertops, Bracelet, beads-
Welcome
to contact HR STONE on Sodalite Stone For Sale, Semi Precious Stones Blue and
yellow.