An inspection system for a storage facility, the storage facility having a floor extending along a horizontal plane, a vertical direction being perpendicular to said horizontal plane, the inspection system comprising: - an automatic guided vehicle comprising • a propulsion unit able to propel the automatic guided vehicle on the floor of the storage facility, and • a bidimensional positioning system able to determine a bidimensional location of the automatic guided vehicle in the horizontal plane on the floor of the storage facility, - an unmanned aerial vehicle comprising • a propulsion unit able to propel the unmanned aerial vehicle and • a measurement sensor able to acquire measurement data, wherein the inspection system further comprises: - a position control system able to command the propulsion unit of the unmanned aerial vehicle to maintain said unmanned aerial vehicle substantially above the automatic guided vehicle in the vertical direction, - an altitude sensor able to acquire relative vertical positioning data indicative of a relative vertical distance between the unmanned aerial vehicle and the automatic guided vehicle, - a communication system able to transmit the measurement data to a remote server, wherein the inspection system is further able to transmit to said remote server a set of tridimensional coordinates associated with the measurement data, said set of tridimensional coordinates comprising - a set of horizontal coordinates function of said bidimensional location of the automatic guided vehicle in the horizontal plane on the floor of the storage facility, and - a vertical coordinate function of said relative vertical distance of the unmanned aerial vehicle with respect to the automatic guided vehicle. - an automatic guided vehicle comprising • a propulsion unit able to propel the automatic guided vehicle on the floor of the storage facility, and • a bidimensional positioning system able to determine a bidimensional location of the automatic guided vehicle in the horizontal plane on the floor of the storage facility, • a propulsion unit able to propel the automatic guided vehicle on the floor of the storage facility, and • a bidimensional positioning system able to determine a bidimensional location of the automatic guided vehicle in the horizontal plane on the floor of the storage facility, - an unmanned aerial vehicle comprising • a propulsion unit able to propel the unmanned aerial vehicle and • a measurement sensor able to acquire measurement data, • a propulsion unit able to propel the unmanned aerial vehicle and • a measurement sensor able to acquire measurement data, - a position control system able to command the propulsion unit of the unmanned aerial vehicle to maintain said unmanned aerial vehicle substantially above the automatic guided vehicle in the vertical direction, - an altitude sensor able to acquire relative vertical positioning data indicative of a relative vertical distance between the unmanned aerial vehicle and the automatic guided vehicle, - a communication system able to transmit the measurement data to a remote server, wherein the inspection system is further able to transmit to said remote server a set of tridimensional coordinates associated with the measurement data, said set of tridimensional coordinates comprising - a set of horizontal coordinates function of said bidimensional location of the automatic guided vehicle in the horizontal plane on the floor of the storage facility, and - a vertical coordinate function of said relative vertical distance of the unmanned aerial vehicle with respect to the automatic guided vehicle.