2results about How to "Easy to compile" patented technology

The application discloses a rule engine execution method, device and equipment and a computer readable storage medium. The application assembles a rule instance object structure value according to preset rule parameter classes, obtains a target condition object instance, constructs a hash key value according to the target condition object instance and a fixed query condition array, constructs a combined key value according to the target condition object instance, a dynamic query condition array and a classification combination condition array, and obtains a rule result from the rule engine according to the hash key value and the combined key value. The application processes rule conditions based on the rule engine, separates business logic from code, and thus simplifies development of business code.

The application discloses a mine unmanned aerial vehicle three-dimensional surveying and mapping device, and relates to the technical field of surveying and mapping, which comprises a fuselage 1, a plurality of wings are arranged on the periphery of the fuselage 1, a central control assembly is arranged in the fuselage 1, the wings are controlled by the central control assembly, a signal antenna is arranged above the fuselage 1 and is connected with the central control assembly, a base is fixedly arranged below the fuselage 1, two lateral supports are symmetrically arranged below the base, and a surveying and mapping assembly is fixed between the two lateral supports.