Title:
農作業機における制御装置
Document Type and Number:
Japanese Patent JP4345871
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To ensure the transmission and reception of control data even in the case where CAN communication is impossible in a CAN controller unit system. SOLUTION: CAN controller units C1, C2, C3, C4 and C5 are linked to each other through a CAN communication bus 82a. In a normal communication state (S7: yes), CAN communication is performed via a CAN controller 12. On the other hand, a communication line 82b is parallelly placed, and a communication state is checked (S10) by idling communication through a communication means of a serial interface, RS232C. By any chance, the CAN communication becomes impossible (S9: error off state), the error information and the minimum control data for controlling the agricultural equipment are transmitted with the RS232C communication means via the communication line 82b (S11).
Inventors:
Taiji Mizukura
Wataru Nakagawa
Tomohiro Koyama
Wataru Nakagawa
Tomohiro Koyama
Application Number:
JP25675599A
Publication Date:
October 14, 2009
Filing Date:
September 10, 1999
Export Citation:
Assignee:
Yanmar Co., Ltd.
International Classes:
A01D69/00; A01D41/12; G05B9/03; G05B15/02; G05D1/00
Domestic Patent References:
| JP10150828A | ||||
| JP10091233A | ||||
| JP4072730U |
Foreign References:
| WO1999029474A2 |
Attorney, Agent or Firm:
Akio Ishii
Tadashi Higashino
Hiroyuki Nishi
Tadashi Higashino
Hiroyuki Nishi