HEM Data's mini logger acquires OBD and CAN bus data
DAWN performs fleet monitoring, research and development, duty-cycle measurements, and service applications.
-- Test & Measurement World, 11/23/2009 7:00:00 AM
Intended for in-vehicle diagnostics, the DAWN (Data Acquisition With Networks) miniature data logger from HEM Data is so compact that it fits within the mating J1962 OBD (On-Board Diagnostics) connector under the dashboard. Installation of this tiny logger is easy since it simply snaps onto the OBD connector.
The DAWN stand-alone logger supports all of the leading automotive protocols, including CAN (Controller Area Network) and ODB II, to acquire data from any automobile on the road today starting from model year 1996. In addition, it collects J1939 data from heavy-duty vehicles. You can use the logger in a wide range of applications, including fleet monitoring, research and development, duty-cycle measurements, and service.
You can also connect the logger to a PC to perform real-time data analysis and display using DAWN software. The software works with any J2534-compatible device. Its Windows user-interface lets you configure the logger without any programming through the use of flowcharts, tables, and dialogs. Computer interface options include USB, Bluetooth, and a GPRS cellular modem. DAWN can acquire a few hundred parameters from multiple controllers simultaneously, overcoming the limitations of most acquisition tools that can only acquire data from one controller at a time.
The mini logger automatically starts and stops acquiring data when the vehicle ignition is turned on and off. It includes a low-power mode when shutdown, a cabin-temperature sensor, and a three-axis MEMS accelerometer. Up to 2 Gbytes of data can be stored on a mini SD card. The DAWN logger has an operating voltage range of 6 V to 40 V and an operating temperature range of –40°C to +70°C.
HEM Data, http://hemdata.com.
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