I am looking for a data recorder that can be programmed to send a serial data request to a field computer and then accept and record an incoming data string and tie it to GPS location and then save the data as a shapefile at the end of the logging period. Any recommendations or places I can start looking?
I tried to keep my original post relitivley general to reduce confusion. The field computer I refered to in my original post is a spray control console that controls spray application in agricultural fields. it has a speed sensor, flow meter, control valve, and gps receiver attached to it. its purpose is to maintain a given application rate regardless of changes in speed. The console has in the past had an onboard CFcard reader/data recorder that initiated a shapefile on power up of the console and closed the file on power down of the console. on the next power up a new shapefile. The CF card readers are no longer being produced so the consoles are now being produced with out them, thus creating the need to come up with an alternative. The console has a serial comunications connector on it that will output a string of data. the current onboard recorder did this at programamble intervals, internally and also collected the location information from the connected gps receiver and ultimately created a shapefile consisting of a SHP, DBF, SHX files. As this is what we are accustomed to working with, and my customers are fairly tech handicapped, it seemed easiest to keep things as similar as possible. Once the files have been produced they open the files with a GIS software package to view the application data, usually in a color coded map format, but also open the DBF file up directly to view the database lines directly.
So what ideally I need is a recorder with 2 serial connectors. one to receive the console data string and one to accept the GPS string, on completion of the job the recorder will need to save the collected data to a Shapefile.
If there are simple way to collect the data from the unit and location stamp it in a way that can be viewed by a shapefile viewer that would be fine to. Thanks