Vehicle-mounted heterogeneous network cooperative task unloading method and system based on intelligent lamp pole

The invention discloses a vehicle-mounted heterogeneous network cooperative task unloading method based on an intelligent lamp post, and the method comprises the following steps: calculating the communication time delay of a vehicle requesting a cache from the intelligent lamp post for a vehicle end, taking the maximum communication time delay in all caches as the communication time delay of the vehicle and an intelligent lamp post network, and transmitting the communication time delay to an intelligent lamp post network; whether the time is shorter than the time when the vehicle sends the request to the cloud center is judged, if yes, the task is unloaded to the intelligent lamp pole network, and otherwise, the task is unloaded to the cloud center; and for an intelligent lamp pole end, dividing the intelligent lamp pole network into a plurality of alliances by taking the own profit of a single intelligent lamp pole as an index, optimizing the intelligent lamp pole composition in the alliances by taking the p