6 GPRS Confidential 11 CSD Remote Direct Access

6 隐蔽的科技 GPRS Confidential

11 撥接式網路的方案演進 CSD Remote Direct Access PSTN Modem GAS Meter Multiport Serial Board PSTN dial-up modem rack Application Notes: PC polling meter If 2 times/days. 5 min/time. If we have 10000 meters. We need X port of multiport serial board X= (2 x 10000) / [(24 hr x 60 min)/5] = 70 Public Telephon e Network PSTN Modem Electric Meter Cellular Station Water Meter GSM Modem In this case, we totally need 1. 70 ports of MSB 2. 70 ports of dial-up modem rack 3. 10000 field modem for connecting meter RS-232/422/485 Telephone Line Confidential

12 TCP/IP遠端數據採集的方案演進 Electric Meter Multi. Port Device Server PC Electric Meter TCP/IP LAN/WA N Electric Meter Application Notes: PC can polling Meters based on IP. Device Server use TCP Server Mode. Meter can automatic report data to PC Device Server use TCP Client Mode. If Real. COM or TCP modes are used to connect the meters. One of the Serial Port on PPP Mode is connected to a GPRS Modem to connect internet Cellular Station Electric Meter Industrial Cellular Router Multi. Port Device Server Electric Meter RS-232/422/485 LAN Confidential Electric Meter

13 基於網頁的數據採集與顯示方案演進 Embedded Computer PC TCP/IP LAN/WA N Electric Meter Cellular Station Industrial Cellular Modem Embedded Computer Electric Meter RS-232/422/485 LAN Confidential Electric Meter

14 On. Cell G 2150 I 业级 GSM/GPRS Modem 外置天线 SIM卡保护盖 信号强弱指示灯 SMA 天线 0, 3, 5 d. Bm GSM, GPRS 串口传输 LED指示灯 独立的 RS-232 RS-422/485端口 Confidential

15 遠端機箱 -- 实际系統架構含接地系統 Circuit Breaker Power Surge Arrestor 遠端機箱 Meter Confidential Power Input

18 简单易用的设置菜单 Confidential

19 從複雜的10步 簡化到Click & Apply --以串口設定為例 10 Steps 2 Steps Baudrate AT+IPR=9600 Check Return OK Data format AT+ICF=3, 4 Check Return OK Flow control AT+IFC=0, 0 Check Return OK Save ATE 0 Check Return OK AT&W Check Return OK AT*Serial=1, 9600, n, 8, 1 Check Return OK Simple Click & Apply Confidential

24 On. Cell G 2150 I • st 1 2. 5 KV 光电隔离 • st 1 SMS 通道 • 业等级 (RS-485) Confidential

25 Confidential