The present invention discloses a method suitable for cold climates crane control method by preheating of the track, can effectively eliminate nuggets track. 
The present invention can automatically tracks prior to loading and the heating temperature, so that the whole track without nuggets, to ensure the smooth running of the car, the track and the car to reduce the wear and reduce maintenance rate and prolong the overall life of the crane.
A method of controlling a crane suitable for the cold zone, characterized in that it comprises the following steps: 
Step 1 gather scattered on the track multi-point temperature data and sent to a computer; 
Step 2 and the computer calculates the average temperature is determined when the temperature value below the heating threshold value, the control heating means distributed on the track heating; 
Step 3 computer obtain multi-point temperature track data, and calculate the average temperature, it is determined when the average temperature is higher than normal operating threshold, controlling the heating unit is stopped heating; 
Step 4 start-controlled loading and unloading process.
Controlled loading and unloading process includes the following steps: 
Step a collection trolley and spreader position information and position information sent to a computer, respectively; 
Step b acquisition was lifting the top surface of the center of information, control the car along the track run to the top of the center point of the top surface of the lifting was; 
Step c car to run after lifting above the top surface of the center thereof, computer-controlled spreaders decentralization; spreader when the distance between the top surface of the lifting was less than or equal to the threshold distance slowdown , lowering speed is slowed down; when the distance between the top surface of the spreader and hoisting material is less than or equal to the stopping distance threshold, stop spreader decentralization; 
Step d computer were receiving position information and jaw hanging hanging hanging claw points and judges and lifting point is aligned, when the alignment control automatic lifting jaws hanging open after passing through the fastening point to complete the automatic connection spreader; 
Step e computer-controlled retractable spreader lifting device to the appropriate position; 
Step f computer controls the drive mechanism to drive the car to run off load was lifting above the place; 
Step g computer-controlled spreaders retractable lifting device was put off when the computer is determined to distance information on lifting the bottom surface of the ground or the floor of the object is smaller than a preset when lifting the slowdown speed threshold, the slowdown in falling speed, distance when lifting the bottom surface of the ground or ground objects is O, computer control spreader stops falling; 
Step h claw computer-controlled crane lifting point release.

The method described above can be realized by the following structure:
Gantry cranes, including the gantry crane beams and legs, is provided with the track, the car can move there, hanging under the car on the track have spreader, said trolley is provided with a central position on the beam targeting emission means for collecting and emitting car center position information, said spreader bottom is provided with a distance detector for detecting the distance between the bottom of the spreader and lifting objects, lifting the top surface of the center was provided with a locator for the collection hoisting positional information, lifting the bottom surface is provided with a detector for detecting distance between the bottom and the ceiling was below the ground or other objects between the computer receiving the information from the electronic device, and be able to drive the car to run and control the spreader income and put the hanging claw release fastening operations.
Technology solutions disclosed invention 
The present technology is not limited to the disclosed embodiments described above, further comprising any combination of the above technical features of the technical program. It should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the premise, but also a number of improvements and modifications can be made, these improvements and modifications are also considered the scope of the present invention.