Road equipment for preventing traffic accident

Abstract

A road structure is capable of giving a warning to certain drivers to prevent a major accident by forcibly stopping a vehicle when the possibility of an accident is very high. The road structure includes: a speed sensor which senses a speed of a vehicle which drive on a road; a buried block including a housing, a weight sensing unit, a light-emitting unit, a lifting projection and lifting crushing needle, a projection driving unit and crushing needle driving unit, and a signal processing unit; and a controller.

1 . A road structure for preventing a safety accident, the road structure comprising:
 a speed sensor  100  which senses a speed of a vehicle  20  which drive on a road;   a buried block  200  including a housing of which the whole or part is buried so that an upper part is exposed to an external side, a weight sensing unit  210  which is installed on an upper side of the housing and measures a weight of a vehicle  20  which steps on and passes the housing, a light-emitting unit  220  which is installed on an upper part of the housing and irradiates light to a driver of a vehicle which forwards toward the housing, a lifting projection  230  and a lifting crushing needle  240  which are installed inside the housing in a structure that may be lifted to be projected to the upper surface of the housing, a projection driving unit  232  and a crushing needle driving unit  242  which lift the lifting projection  230  and the lifting crushing needle  240 , and a signal processing unit  250  which transmits a signal generated from the weight sensing unit  210  to an external side, receives a signal which is received from an external side, and transmits a signal to the light-emitting unit  220 , the projection-driving unit  232 , and the crushing needle driving unit  242 ; and   a controller  300  which transmits an operation signal of the light-emitting unit  220  to the signal processing unit  250  if the speed of the vehicle  20  which drives on the road exceeds a first reference speed, transmits an operation signal of the projection driving unit  232  if the speed of the vehicle  20  which drives on the road exceeds a second reference speed, and transmits an operation signal of the crushing needle driving unit  242  to the signal processing unit  250  if the speed of the vehicle  20  which drives on the road exceeds a third reference speed,   wherein a plurality of buried blocks  200  are installed in a longitudinal direction of the road at intervals.   
     
     
         2 . The road structure of  claim 1 , wherein the housing is buried so that the height of the upper surface coincides with the height of the upper surface of the road. 
     
     
         3 . The road structure of  claim 1 , wherein an end of the lifting crushing needle  240  is inserted into a tire of the vehicle  20  which passes over the housing when the lifting crushing needle  240  rises to the upper surface of the housing, and the diameter of the lifting crushing needle  240  is less than 5 mm. 
     
     
         4 . The road structure of  claim 1 , wherein, when the road has two or more lanes  14 , a first buried block  200   a  installed on a first lane  14  and a second buried block  200   b  installed on a second lane  14  are arranged side by side in a direction that crosses the road,
 wherein, when a left tire and a right tire of the vehicle  20  respectively pass the first buried block  200   a  and the second buried block  200   b,  the controller  300  transmits an operation signal of the light-emitting unit  200  and an operation signal of the projection-driving unit  232  to the signal processing unit  250  regardless of the speed of the vehicle  20 . 
 
     
     
         5 . The road structure of  claim 4 , wherein, if a phenomenon that the left tire and the right tire of the vehicle  20  respectively pass the first buried block  200   a  and the second buried block  200   b  is continued by more than a predetermined distance, the controller  300  transmits a crushing needle operation signal to the signal processing unit  250 . 
     
     
         6 . The road structure of  claim 1 , wherein, as the weight of the vehicle  20  which drives on the road increases, the first reference speed, the second reference speed, and the third reference speed decrease. 
     
     
         7 . The road structure of  claim 1 , further comprising:
 a rainfall and snowfall sensing unit which measures the amount of rainfall or snowfall around the road,   wherein, if the amount of the rainfall or snowfall exceeds a reference value, the first reference speed, the second reference speed, and the third reference speed are set lower according to a preset weight.