| 摘要 |
PURPOSE: A price displaying system is provided to display a name and price of a commodity arranged at an exhibition stand located at a remote place, and also to change a position or a price of the commodity by using an RF(Radio Frequency) communication. CONSTITUTION: The system comprises displays(40), drive controllers(30), a main computer(10), and unit controllers(20). The displays(40), installed at an exhibition stand exhibiting commodities, have their own IDs, receive RF signals, generate an actuating power, decode the received RF signals, and store and display the decoded signals. The drive controllers(30) transmit the RF signals, including display data with each display ID, to the displays(40). The main computer(10) transmits the display data to the displays(40) via the drive controllers(30), receives the data stored at the displays(40) by calling the displays(40) with a search instruction, and performs an overall control of components with an embedded application software. The unit controllers(20), connected to the main computer(10), manage the drive controllers(30) and store necessary data. |
