Fig. 1 Pedal valve and joystick
Fig. 2 Remote controller(transmitter)
Fig. 3 Traveling control strategy by one joystick
Fig. 4 Traveling control algorithm
Fig. 5 Concept of joystick absolute angle
Fig. 7 Configuration of wireless communication test system
Fig. 6 Control signal for valve by driving algorithm
Fig. 8 Hydraulic circuit of test equipment
Fig. 9 Test equipment of wireless communication
Fig. 10 Configuration of test program11)
Fig. 11 Input signal profile
Fig. 12 Wireless communication test environment
Fig. 13 Transformed signal by algorithm
Fig. 14 Traveling algorithm test result graph
Fig. 15 Response time measurement graph
Fig. 16 Response time distribution of zigbee
Fig. 17 Response time distribution of bluetooth
Table 1 Valve control strategy and parameter value
Table 2 Specification of proportional solenoid valve
Table 3 Specification of wireless communication module
Table 4 Control mode by joystick position
Table 5 Wireless communication test environment
Table 6 Traveling algorithm test result
Table 7 Response time measurement test result
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