In this embodiment, the detector 106 will not detect the speed of the vehicle that enters the first range initiatively, only after the vehicle that enters the first range sends a second request to be connected to the local area network to the communication module 104 initiatively, will the controller 105 generate a second instruction to detect the speed of the vehicle based on the second request sent by the communication module 104, and send the second instruction to the detection 106, and then, will the detector 106 detect the speed of the vehicle that has sent the second request based on the second instruction, so as to facilitate the controller 105 to determine whether the vehicle meets the first condition for connection to the local area network.

After a vehicle is connected to the local area network of a street lamp integration device, the vehicle can obtain the traffic information through the street lamp integration device. There are two manners for the vehicle to obtain the traffic information through the street lamp integration device: one is that the vehicle sends a request to obtain the traffic information to the street lamp integration device initiatively, and the other is that the street lamp integration device sends the traffic information to the vehicle initiatively.

With regard to the manner that the vehicle sends a request to obtain the traffic information to the street lamp integration device initiatively, the modules or components of the street lamp integration device can perform the following operations or functions: