Glass plants procure raw materials such as silica sand needed to produce glass, as well as caustic soda and hydrochloric acid used in wastewater treatment every day. To cope with complex production plans, the staff in charge has to check inventory levels every day, review procurement plans, and respond to changes in storage and usage plans. These activities were very time-consuming.
The Smart Inventory System is an automated management system for raw materials. RFID*1 tags are attached to all raw material containers to which raw material data is linked, and tag information is collected by sensors installed at the entrances and exits of the warehouses. This makes it possible to monitor the storage and usage history of raw material data in real time.
In addition, for tanks containing raw materials such as caustic soda, for which inventory used to be managed visually by people, AGC has developed a system that can remotely monitor the tank inventory and automatically place orders by installing a measuring device and converting the remaining amount into digital data.
Under its AGC plus 2.0 management policy, the AGC Group is committed to promoting Smart AGC, which aims to transform business processes through digital technology. AGC has been improving the efficiency of its business processes by introducing digital technology not only in manufacturing and R&D, but also in such back-office operations as purchasing and logistics departments. The Group will continue to provide new added value to its customers and society by transforming its business model through the use of big data for all types of operations.
*1 RFID: Radio Frequency ID. A system that can read and rewrite data by wireless communication.
The Smart Inventory System automated ordering system for raw materials consists of two systems: a raw materials inventory management system and a tank inventory management system.
■Raw materials inventory management system
RFID sensors are installed at the entrance and exit of raw material warehouses to automatically manage the inflow and outflow of raw materials. RFID tags are attached to each raw material container for data reading in order to manage information on raw materials. Oki Electric Industry Co., Ltd. (Oki Electric Industry)'s 920MHz band multi-hop wireless 'SmartHop™' is used to collect RFID tag information.
SmartHop 920MHz band multi-hop wireless This is the name of a series of Oki products that support 920MHz wireless products with high reachability and multi-hop relay transmission. As a solution suitable for the Internet of Things (IoT), it enables a variety of sensors and devices to be easily connected to a wireless network and has been adopted in more than 120 products of partner companies.
*SmartHop is a registered trademark of Oki Electric Industry
■Tank inventory management system
AGC has jointly developed a cloud-based inventory management system with CONTEC Co., Ltd. (CONTEC) to achieve DX in procurement operations. Users can view remaining amounts via a dashboard. This system automatically update inventory tables, and automatically place orders with suppliers. AGC has developed an IoT system that uses sensors attached to tanks and gateway devices to remotely monitor remaining amounts in tanks in real time via mobile lines. The CONPROSYS™TM (telemeter) Series from CONTEC is used as the gateway device.