3BHB013085R0001 Analog input module

technical parameter
Structure: Standard embedded 3.5-inch industrial computer motherboard structure
Processor: Embedded Intel D525 dual core microprocessor (optional single core N455 CPU), 128KB primary cache, 1.66GHz CPU
Chipset: ICH8M
Memory: onboard 1GB DDRIII SDRAM
Watchdog timer: SIO built-in Watchdog, 128 levels, 0-255 seconds, generating a Reset signal with a 2-second interval
Network: 1 REALTEK 8111D 10/100/1000MB network card interface
Hard memory interface: 1 onboard SATA interface and 1 IDE bus type CF socket (optional)
COM interface: 4 RS232 standard 9-wire serial ports, COM3 and COM4 support RS485 mode simultaneously
USB interface: 6 standard USB 2.0 interfaces, supporting USB startup
Display interface: 1 standard VGA interface, 1 LVDS interface
Audio interface: AC97 2.0 bus standard, supports Mic in, Line in, and Speak out
I/O interface: KB/MS interface
DIO interface: 4 TTL inputs and 4 TTL outputs
BIOS： SST FLASH
RTC： Contained inside the Nanqiao chip, supporting CMOS settings for data saving
LED indicator lights: power and hard disk indicator lights
Expansion interface: 1 standard PCI/104 bus interface (optional)
Power requirement: AT power interface, single 12V power supply
CE design: Both serial and network interfaces are designed to prevent EMI
Printed circuit board: 8 layers
Working temperature: -40 ℃~+70 ℃, uninterrupted operation, low-power CPU without fan
Relative humidity: Relative humidity of 5% to 95%, non condensing
Size: Complies with 3.5 standard size, 146mm x 102mm

3BHB013085R0001 Analog input module

The Structure and Function of Embedded Power Grid Monitoring Instrument
The power grid monitoring instrument samples and processes voltage and current signals on the power grid, and saves data for a certain period of time. The specific functions are as follows:
(1) Real time monitoring of three-phase voltage Va, Vb, Vc, and four phase current Ia, Ib, Ic, and I0;
(2) Monitor the three-phase power factors of A, B, and C;
(3) Communicate with Ethernet through RJ45 interface;
(4) Save voltage, current data, and power factor at the hour of the hour, and save monthly statistical data;
(5) Using a digital display, users can view and set the operating parameters and historical records of the instrument on site. The structure of the power grid monitoring instrument is shown in Figure 2. It mainly consists of a microcontroller, voltage and current sampling module, power factor monitoring module, Ethernet interface module, etc. Complete the monitoring of power grid parameters, achieve functions such as signal processing, data display, and display of power grid operation status.
2.1 Microcontroller
The microcontroller module is the core of the entire power grid monitoring instrument. Mainly completes two major functions:
(1) Data collection and processing;
(2) Implement Ethernet access.
Process the real-time three-phase voltage, real-time three-phase current, and neutral current obtained through the voltage and current monitoring module; Real time monitoring data can be transmitted to Ethernet through the RJ45 interface, enabling the monitoring center to timely obtain relevant parameters of the power grid; At the same time, the power grid monitoring software determines the operation status of the power grid and whether the voltage is beyond the limit or too low based on the test parameters. The microcontroller uses UBICOM’s 8-bit ultra high speed microcontroller SX52BD, with a data processing capacity of 100 million times per second. Because UBICOM MCU has a very high speed and can realize real-time multitask operation, it can package and transmit data to the Internet while MCU performs data acquisition and control functions.

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