| 摘要 |
PURPOSE: A real time manufacturing management system is provided to collect real time manufacturing data from industrial equipments via a USB(Universal Serial Bus), and to connect the collected data to a database of an ERP(Electronic Resource Planning) system so that it can perform an efficient manufacturing management. CONSTITUTION: The system comprises a manufacturing management ERP server(10), a network(20), a USB host(30), a USB hub(40), a USB IO unit(50) and a manufacturing equipment(60). The manufacturing management ERP server(10) collects real time manufacturing data from the USB host(30) via the network(20). The USB host(30) periodically collects manufacturing data from the USB IO unit(50), stores the data at a database, and offers the stored data to the ERP server(10) via a USB port. The network(20) can an Intranet, an extranet, a PSTN, the wire or wireless internet, a mobile communication network or a satellite communication network. The USB hub(40) enables plural USB IO units(50) to access the USB host(30). The USB IO unit(50) receives the manufacturing data from the manufacturing equipments(60), stores the data at a database and offers the requested manufacturing data to the USB host(30). The USB IO unit(50) can selectively include a DIO(Digital Input/Output) unit, an ADC(Analogue Digital Converter), and a DAC(Digital Analogue Converter). The manufacturing equipment(60) can be all the devices or equipments outputting manufacturing related data, for example, a sensor, a thermocouple, a PLC(Programmable Logic Controller) as well as a direct manufacturing equipment. A plurality of USB hosts(30) have to be installed within a limited distance from the USB IO units(50), and connect to the ERP server(10) via the network(20).
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