QL-MegaSUM Data Acquisition and Telemetry System

The QuakeLogic QL-MegaSUM is a data acquisition and telemetry system for environmental monitoring and remote sensor networks. It features FreeRTOS, Bluetooth, Wi-Fi, Ethernet, RS232, RS485, SDI-12, 24-bit analog inputs, optional 2G/3G/4G/5G modem, advanced diagnostics, solar charging support, and low-power field operation.

OVERVIEW

Description

Data Acquisition and Telemetry System

The QuakeLogic QL-MegaSUM is a powerful data acquisition and telemetry system designed for environmental monitoring stations and remote sensor networks.

It is suitable for applications that require data acquisition from many different sensor types at the same time. Therefore, it is a strong solution for monitoring stations that need flexible sensor integration and reliable field telemetry.

The system is based on the FreeRTOS operating system. In addition, it includes Bluetooth and Wi-Fi modules on board for configuration, data transfer, and remote navigation.

Environmental Monitoring Applications

The QL-MegaSUM is designed for long-term use in harsh environmental conditions. It can support monitoring applications in cold, hot, tropical, desert, mountain, and remote field environments.

Typical applications include:

  • Environmental monitoring
  • Meteorological monitoring
  • Hydrological monitoring
  • Remote monitoring stations
  • Sensor data acquisition
  • Field telemetry systems
  • Solar-powered monitoring stations
  • River and water monitoring
  • Weather station networks
  • Remote data transmission

As a result, the system can be used in both standalone monitoring stations and larger monitoring networks.

Flexible Sensor and Communication Interfaces

The QL-MegaSUM provides a wide range of serial, analog, digital, Ethernet, Bluetooth, and Wi-Fi communication options. Therefore, it can connect with many different sensors and transmission devices.

Supported communication interfaces include:

  • RS232
  • RS485
  • SDI-12
  • microUSB
  • Ethernet
  • Bluetooth
  • Wi-Fi
  • Modbus RTU
  • Modbus TCP
  • TCP/IP
  • FTP
  • SMS
  • UDP
  • Generic ASCII

In addition, the system can manage data transmission through radio modems, GPRS, UMTS, LTE, 5G modem or router systems, satellite equipment, RS232, RS485, or combined communication methods.

High-Accuracy Data Acquisition

The QL-MegaSUM supports high-resolution measurement through 24-bit analog inputs. As a result, it can support accurate field measurements from different sensor types.

Key acquisition features include:

  • 24-bit analog inputs
  • 8 differential ±2.5V inputs
  • 16 single-ended 0–2.5V inputs
  • 8 Pt100 temperature inputs
  • 8 single-ended 0–10V inputs
  • 4 differential ±10V inputs
  • 4 current inputs from 0–20 mA
  • Digital frequency inputs
  • Counter inputs
  • Digital status inputs
  • 12-bit analog outputs
  • Open-drain digital outputs

Moreover, the system supports data validation, corrective formulas, and calculation algorithms for field data processing.

Data Processing, Storage, and Configuration

The QL-MegaSUM stores acquired data in a temporary archive before saving it permanently in internal FAT memory. Also, data can be copied to an external SD memory card.

Data and configuration features include:

  • Instant data display
  • Processed data display
  • Average, minimum, and maximum values
  • Data validation
  • Statistical processing
  • Arithmetic mean
  • Accumulation
  • Vector mean
  • Trigonometric average
  • Linear memory management
  • Compact binary data structure
  • External microSD card option
  • DAK configuration wizard software

The system can be configured through wireless connection, local display, USB terminal, DAK software, remote communication, or web server client mode via Wi-Fi.

Diagnostics, Alarms, and Field Reliability

The QL-MegaSUM monitors more than 10 internal diagnostic parameters. Therefore, it can support reliable long-term operation in remote field conditions.

Diagnostic and alarm features include:

  • Solar panel voltage monitoring
  • Battery charger monitoring
  • Load current and power monitoring
  • Internal temperature monitoring
  • Acquisition channel status
  • Storage area status
  • Communication performance monitoring
  • MPPT charge controller operating point monitoring
  • Minimum and maximum alarm thresholds
  • SMS alarm notification
  • Operating frequency change after alarm events

Because of these features, the system can detect field issues and support proactive monitoring.

Power and Rugged Operation

The QL-MegaSUM is designed for low power consumption and long-term outdoor use. In addition, it supports photovoltaic power systems and backup battery operation.

Power and operating features include:

  • 9–24 Vdc supply voltage
  • 12 Vdc nominal backup battery
  • Integrated MPPT battery charger
  • Photovoltaic panel support up to 100W
  • 24 outputs at 12V / 200mA
  • 12V / 2.5A power output
  • Switchable 12V / 2.5A output
  • 2.5V reference output
  • 5V / 200mA output
  • EMC protection filters
  • Operating temperature from -40°C to +60°C
  • Maximum humidity of 99% without condensation

Overall, the QuakeLogic QL-MegaSUM Data Acquisition and Telemetry System provides a flexible and reliable solution for environmental monitoring, weather stations, hydrological networks, remote telemetry, and multi-sensor field data acquisition.

For this reason, it is a strong choice for projects that require broad sensor compatibility, low power consumption, wireless configuration, advanced diagnostics, and long-term operation in demanding field environments.

General Features

  • Product Name: QL-MegaSUM
  • Brand: QuakeLogic
  • System Type: Data Acquisition and Telemetry System
  • Application Area: Environmental monitoring and remote sensor networks
  • Operating System: FreeRTOS
  • Display: 4 × 20 character alphanumeric LCD with 5-position joystick
  • Main Function: Data acquisition, processing, storage, communication, and telemetry
  • Configuration Software: DAK configuration wizard software
  • Wireless Configuration: Bluetooth and Wi-Fi modules on board
  • Remote Configuration: Supported through communication system or web server via Wi-Fi
  • Optional Modem: Integrated 2G / 3G / 4G / 5G modem
  • Diagnostic Monitoring: More than 10 internal diagnostic parameters
  • Power Design: Low power consumption for long-term field use
  • Environmental Use: Designed for harsh environmental conditions
  • Alarm Management: Minimum and maximum thresholds with SMS alarm option

Technical Specifications

  • Processor: 32-bit Cortex-M4
  • Memory: 16 Mb flash memory
  • Additional Memory: Optional microSD card
  • Communication Interfaces: RS232, RS485, SDI-12, microUSB, and Ethernet
  • COM1: RS232, DB9
  • COM2: RS232 / RS485
  • COM3: RS232
  • COM4: RS485
  • COM5: RS485 / SDI-12
  • COM6: RS485 / SDI-12
  • COM7: RS485
  • Analog Input Type: 24-bit analog inputs
  • ±2.5V Inputs: 8 differential, 16 single-ended, or 8 Pt100 inputs
  • ±10V Inputs: 4 differential or 8 single-ended inputs
  • Current Inputs: 4 current inputs, 0–20 mA
  • Digital Inputs: Frequency, counter, and digital status input support
  • Analog Outputs: 2 voltage outputs, 0–2.5V
  • Digital Outputs: 8 open-drain outputs
  • Ordering Code, Standard Version: PEM-e021a-MEGASUM
  • Ordering Code, LTE Version: PEM-e021b-MEGASUM-LTE

Power, Communication, and Operating Conditions

  • Supply Voltage: 9–24 Vdc
  • Backup Battery: 12 Vdc nominal with MPPT battery charger
  • Photovoltaic Panel Support: Integrated charge controller, maximum 100W
  • Battery Range: 5–10.8 V
  • Power Supply Outputs: 24 outputs at 12V / 200mA
  • High-Current Output: 12V / 2.5A output
  • Switchable Output: 12V / 2.5A switchable output
  • Reference Output: 2.5V / 5mA
  • 5V Output: 5V / 200mA
  • Serial Protocols: Modbus RTU, SDI-12, Generic ASCII
  • Ethernet Protocols: TCP/IP and Modbus TCP
  • Modem Protocols: FTP, TCP, SMS, and UDP
  • Wireless Communication: Wi-Fi and Bluetooth
  • Optional Transmission: Radio modem, LTE/5G modem/router, satellite device, RS232, or RS485
  • Control Functions: Battery monitor, watchdog, charge current measurement, current consumption measurement, and board temperature measurement
  • Protection: EMC protection filters on power supplies, inputs, outputs, and communication interfaces
  • Operating Temperature: -40°C to +60°C
  • Maximum Humidity: 99% without condensation

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