Stevens - Model eTracker - True Cloud-based Sensor Configuration, Logging, Reporting and Data Analysis All-in-one
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eTracker is the gateway between sensors and the cloud. Data communication and IT infrastructure are merged under one user interface experience. eTracker was designed from the ground up to embrace the current and future trends of cloud-based remote data acquisition and the “Internet of Things” (IoT) revolution. This paradigm shift centralizes all the historically isolated processes of remote configuration, programming, logging, and telemetry. Configuration, logging, data processing and analysis is now done in the cloud, eliminating time and cost in programming and maintaining expensive, complex data loggers and communication devices at each remote location.
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Features:
- Direct Internet compliant data stream using HTTP/HTTPS.
- Sensor measurements stored on easily-accessible SD card.
- Cloud logging: all sensor data is forwarded to the cloud for processing, logging, retrieval and resulting action.
- Integrated sensor interface with ports: 4 analog, 4 pulse, SDI-12 (up to 62 SDI-12 sensors).
- Approximately 20X typical improvement in power consumption vs. typical cellular telemetry.
- Intelligent data management, data buffering, and network verification to ensure successful transmission of critical data.
Unique Features:
- Link sensors to the cloud: Sensor data is linked directly to the cloud-based Amazon service via the cellular network using HTTP.
- Unified data interface experience: Sensor configuration, data storage, custom algebraic equations, custom data formats and forwarding, control, analysis, alarm notifications (email, SMS), reporting and actions all done with one simple cloud-based user interface.
- Easy configuration: Configure with any device connected to the Internet via the cloud-based Stevens-Connect. No custom programming or scripts required.
- Security: Three user access levels for configuration, data management interface and visualization. Data is saved on SD card and in highly secure data centers.
- Connection verification: eTracker verifies connection with cell network and server connection before data is sent. If no connection is available or if data reception is not confirmed, data is saved and sent the next scheduled transmission.
- True cloud data service experience: Your data is sent directly and securely to the Amazon cloud- based service. No back-end database hosting or web server controlled by Stevens in which data flow takes a detour to the cloud.
- Data format flexibility: Optionally forward data in various formats for third party software platforms.
- Power control: Power cycle commands automatically initiated with the Stevens’ SOLO power management system.
- Direct data access options: Third-party programs can access data using REST API or HTTP post.
eTracker: Cellular Gateway to the Cloud
Most of our pre-packaged systems are built around eTracker. The reasons? Setup is simple, all configuration and programming is done on the web, you don’t need a data logger, and it works with any analog or SDI-12 sensors. Your data is backed up locally and automatically sent to the cloud-based destination of your choice.
Technical Specifications:
- KEY FEATURES
- Processors : 16-bit dsPIC microprocessor, and 16-bit TI MSP430
- Data Storage : Removable 2 GB SD memory card (FAT 32)
- Non-volatile Memory : All setup parameters
- Logging Interval : 1 second to 24 hours (sensor dependent)
- Reporting Interval : 2 minutes to 24 hours
- Cellular Antenna : External SMA
- LED indicators : Power, cell network, test message
- Cellular Communications :
- Dual band CDMA 800, 1900 MHz
- Penta-Band HSPA+
- GSM Quad band 850, 900, 1800, 1900 MHz
- UMTS/HSPA Penta Band 850, 900, 1700, 1900, 2100 MHz
- EGPRS / WCDMA / HSDPA / HSUPA Protocol Stack
- CURRENT CONSUMPTION
- Listen/trigger mode/idle :
- Data Receive/store/prepare for Transmission : 150 mA
- Data Transmit : 250 mA
- POWER
- Input Voltage : 10 to 18 VDC (reverse polarity protection)
- TX Output Power : 24.3 dBm (270 mW)
- PERFORMANCE MEASUREMENTS : Battery and RSSI (signal strength), internal diagnostic log file
- SENSOR INPUT
- Analog input : 4 analog channels, single-ended
- Input type: 2 wire, 0 –2.5 V or4 - 20 mA current loop (accessible DIP switch)
- Sensor power: 24 VDC switched (under firmware control)
- Analog to digital (0-2.5 VDC): 21-bit resolution
- Pulse input : 4 pulse channels
- Input type: Edge triggered
- Maximum rate: 4 pulses per second
- SDI12 Input : Number of sensors: up to 62 sensors
- Sensor power: 12 VDC switched, during measurement
- ENVIRONMENTAL
- Operating temperature : -30°C to 65°C (SIM Card selection may limit this range for GSM version)
- Storage temperature : -40°C to 85°C (SIM Card selection may limit this range for GSM version)
- Lightning protection : AC transient voltage suppressor (TVS) on each sensor port input
- PHYSICAL
- Dimensions (H x L x W) : 1 3/8” (3.5 cm) x 5 1/8” (13 cm) x 3 3/4” (9.7 cm)
- Weight : 10.78 oz (305.6 g)
- PORTS
- Cellular antenna : SMA
- Sensor module interface : 30-pin connector
- INCLUDED : Power cable with flying leads, dipole dual-band cellular 800/1900 MHz antenna.
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