In the system alteration on the basis of the substrate for alteration treatment which is distinguished the individual data alteration system of the substrate for motor transport control and the individual access data alteration system of the substrate for motor transport control, individual data alteration manner of the substrate for motor transport control and individual access data alteration manner of the substrate for motor transport control

摘要

PPROBLEM TO BE SOLVED: To certainly prevent the burglar of motor vehicle by ensuring sufficient reliability in the individual data(key ID) of a motor vehicle control carrier. PSOLUTION: A plurality of operation tags 2 are prepared for a burglar preventing device 1 of construction machinery 6, and each key ID(same value) is stored in a memory 27. When driving the construction machinery 6, one of the operation tags is made to approach the burglar preventing device 1. A control part 15 confirms the matching of the key ID of the tag with the data of a key ID memory 13, and supplies a power source to the construction machinery 6. When changing the key ID of each operation tag on hand when a portion of operation tags 2 is lost, an update tag 5 and each operation tag on hand may be made to approach the burglar preventing device 1. The control part 15 which detects a flag 51a of the update tag 5 updates the key ID memory 13 with the authentic data of a key ID setting part 11, and transmits the authentic data. Each operation tag on hand updates the memory 27 with the authentic data. PCOPYRIGHT: (C)2004,JPO