Discrete Dynamics in Nature and Society

Research Article

Dynamic Data Scheduling of a Flexible Industrial Job Shop Based on Digital Twin Technology

Table 1

Experimental parameters.
ProjectParameter
Online monitoring networkGSM network/GPRS network
System resource16 MB+
Standard802.11 b/802.15.1/802.15.4
Network size1/32/7
Bandwidth (kb/s)64–128+
Transmission distance (m)1,000+
Use protocolZigBee agreement
Frame length30 ms
Slot length2.25 ms
Duplex modeFDD/TDD
Carrier broadband15 MHZ
Multiple access modeDirect spread
Uplink modulation modeBPSK
Downlink modulation modeQPSK