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Edge Power International (HK) Ltd.
Document Name:
1
Introduction....................................................................................................................... 4
2
Scope ................................................................................................................................ 5
3
System .............................................................................................................................. 5
3.1
Configuration .................................................................................................. 6
3.1.1
System block diagram ................................................................................. 6
3.1.2
System interface .......................................................................................... 6
3.2
System features ............................................................................................... 7
3.2.1
3.2.1.1
Water pump ...................................................................................... 7
3.2.1.2
Power supplies ................................................................................. 8
3.2.1.3
Water tank ........................................................................................ 8
3.2.1.4
Flow meters ...................................................................................... 8
3.2.2
Display ........................................................................................................ 8
3.2.3
Communication ........................................................................................... 8
3.2.3.1
Data link ........................................................................................... 9
3.2.3.2
Alert SMS messages ........................................................................ 9
3.2.4
Host interface .............................................................................................. 9
3.2.5
Host Application ......................................................................................... 9
3.3
System Hardware ............................................................................................ 9
3.3.1
Optical Isolator and I/O extender ................................................... 10
3.3.1.2
MCU .............................................................................................. 10
3.3.1.3
Analog inputs ................................................................................. 10
3.3.1.4
UARTS ............................................................................................11
3.3.1.5
SPI and I2C .....................................................................................11
3.3.1.6
USB .................................................................................................11
3.3.1.7
GSM modem ...................................................................................11
3.4
4
SCB Hardware block diagram .................................................................. 10
3.3.1.1
3.3.2
3.5
Monitor and data collection ........................................................................ 7
SCB physical layout ...................................................................................11
Signaling system performance .......................................................................11
3.4.1
Sample rate................................................................................................ 12
3.4.2
Display ...................................................................................................... 12
3.4.3
Data link .................................................................................................... 12
3.4.4
SMS message ............................................................................................ 13
3.4.5
Host interface data .................................................................................... 13
Events and SMS message .............................................................................. 13
Operation ........................................................................................................................ 13
4.1
System components ....................................................................................... 14