| 摘要 |
PROBLEM TO BE SOLVED: To easily register operation items and to easily change, add, or delete operation items at low cost by registering operation contents by using a bar code reader. SOLUTION: A crew who has finished loading reads a bar code for the loading out of a bar code table 14 by using the bar code reader 10. The read bar code is matched against a table in an operation management meter main body 1 and recorded in a memory card 11 in while combined with the time when the bar code was read and travel data on a travel distance. Then characters 'loading' are displayed at the display part 12 of the operation management meter main body 1. When an operation item is added, changed, or deleted, only the bar code table 14 is revised and a program in the operation management meter main body 1 need not be modified. |
