Antitheft device of building machinery and management method of building machinery

• Main Author: ASAKAGE TOMOHIKO,KADOWAKI HISASHI,HAYASHI KENHIKO
• Format: Patent
• Language: English
• Published: 19.04.2006
• Subjects: ALARM SYSTEMS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CALCULATING; CHECKING-DEVICES; COMPUTING; COUNTING; DREDGING; FIXED CONSTRUCTIONS; FOUNDATIONS; GENERATING RANDOM NUMBERS; HYDRAULIC ENGINEERING; ORDER TELEGRAPHS; PERFORMING OPERATIONS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; SOIL SHIFTING; TIME OR ATTENDANCE REGISTERS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; VOTING OR LOTTERY APPARATUS

An anti-theft system for construction machines, comprising a memory which stores, as machine-side identification information, first identification information allocated construction machine by construction machine and second identification information allocated in common to plural construction machines, a first collating medium having the same identification information as the first identification information, a second collating medium having the same identification information as the second identification information, a collator which collates the identification information of the first or the second collating medium with the machine-side identification information, and an operation controller which cancels the inhibit of operation of the construction machine concerned when there is obtained a coincident collation result by the collator. With this anti-theft system, an owner of construction machines can manage the construction machines by only one type of a collating medium while preventing theft.