GLOBAL COMMUNICATIONS  GLOBAL COMMUNICATIONS   ON LINE. CATALOG ANDINFORMATION SOURCE   MIKE KOHLS 9. State Road 2. 3Plain, Wisconsin   5. The 5Th Commandment Torrent'>The 5Th Commandment Torrent. Telephone. 6. 08 5. Fax. 6. 08 5. 46 2. E Mail. globalcmmhtc. Website  www. global cm. Fax. E Mail access 2. Telephone hours    Call or EMail for an appointment. INVENTORY REDUCTION CLOSEOUT SALECONTINUESLink. See NEWS AND VIEWS Link to the right. Data Logging from a GPS with Windows Software. Data Acquisition Serial Communications Interfacing GPS Receivers. Connecting a GPS Receiver to a Laptop PCTo collect live data from your GPS receiver on your laptop you need An RS2. USB serial converter, to connect the GPS to the PCs com port. Software, like Windmill, to read the GPS data. Our Windmill COMIML software runs under Windows 1. Vista and XP. It is available from our on line data acquisition shop and is currently reduced from 1. POP-Peeper.png' alt='Email Receiver Software' title='Email Receiver Software' />Why would I want live data in my Laptop PC There are many situations when GPS measurements are valuable in computerised systems. For example, Windmill software is currently being used by marine biologists to map coral reefs. A train company, on the other hand, is using Windmill COMIML and GPS receivers as part of a system to monitor their trains skidding on leaves or ice. The reason Windmill is so useful is that it works with a vast range of instruments, not just GPS receivers. This means that you can capture all sorts of other data alongside the GPS information. For example, you can connect a sonar and record depth, or an anemometer and record wind speed. Any instrument with a serial port RS2. RS4. 22, RS4. 85 and Modbus, that communicates using ASCII or binary messages, can be interfaced. It has never been easier, or cheaper, to collect spatially referenced data such as used in geographical information systems GIS. The GPS receiver sends data in a string or sentence. This might look something like this. GPGLL,5. 33. 0. 1. N,0. 02. 15. 3. 1,W,1. Alt CR lt LF. First, there is a NMEA code GPGLL, then the latitude, North or South, Longitude, East or West, Time hhmmss, Data Valid A, Carriage Return and Line Feed. Out of this data string you might want to record just the latitude and longitude. Windmill will collect this information as 2 channels of data, but you have to tell it how to recognise the desired information. In this example, for the latitude channel, you might tell Windmill to search for GLL, and extract up to the next comma. For the longitude channel you might search for N, and extract until ,. Full details of how to do this are in the Com. Debug program Help and on our Parsing page. Another Example of a GPS Data StringGPRMC,hhmmss,A,llll. N,yyyyy. yy,W,kk. WCS. Where hhmmss is the UTC time. A is the status data valid A or receiver warning Vllll. N is North or Southyyyyy. W is West or Eastkk. W is West or EastS is the check sum. Using Windmill you can extract as much of this data, or as little, as you require. It will be saved and displayed in real time. Use an RS2. 32 serial cable to plug the GPS into one of the PCs COM ports. Use Com. Debug to enter your GPS settings, and instructions for extracting information from the string of data. Mqu.jpg' alt='Email Receiver Software' title='Email Receiver Software' />These settings should get you started. See also the Com. Debug program Help. Edit COM Port Settings these suggestions should work, but consult your GPS Manual to make sure. Baud rate 4. 80. Bits 8 Parity none Stop bits 1 Flow control XonXoff or Hardware you may have to try both. Press OK. Edit the Instrument Timings Data Persistence 5. Read in the Background. Email Receiver Software' title='Email Receiver Software' />Instrument Idle or Wait Time 5. Add a New Message or Edit Message1 Prompt string this is not needed as a GPS continually sends data. Reply Parser window see the tips given in the previous section. I would like to receive email information from Camping World and its affiliates. I would like to receive email information from Camping World and its affiliates. Citrix Receiver lets you access your enterprise files, applications and desktops to help you be as productive on the go as you are in the office. If your. GetNtoify. Free Email Tracking Email Marketing service which tracks your sent emails and get email open and email read confirmation. Receive email message. For latitude for example, search for GLL, then extract data up to the next comma. For longitude you could search for N, and extract until comma. In the Message Screen click Run to check that everything is working. Save the settings youve entered as an. IMD file and click OK in the main window. Choose Edit Windmill Device and add your. IMD file. Repeat for any other instruments you have then select the Make IMS button. Run Logger and load the IMS file. For routine data collection on future occasions, just run the Windmill Logger application. If you have any problems see the Windmill program Help, our Technical Support page or Trouble Shooting below. Windmill has been used with many makes of GPS receiver, including. Map of the sea floor produced using data collected by Windmill, a GPS, a Sonar and Mapping Software. Trouble Shooting. If you can see your data in Com. Debug, but Logger shows Error 1. Data not yet ready, it is probably a problem with the timing of readings. It might be that you need to change your selections in Com. Debug points 1 and 2 below, or it might be an issue with your USB serial converter settings point 3 below. For a GPS make sure that you have chosen to read in background. To check this, in Com. Debugs main window select Edit Instrument Timings. Make sure that the data persistence time is longer than the sampling rate. If you are logging data every second, for example, set the data persistance to 2 seconds. Otherwise the data will have expired before you have logged it. Now check your USB serial converter settings. Make sure that your converter is continually providing data, and not buffering it. Depending on your converter make a. Set the lowest latency possibleb. Set the lowest USB Transfer sizes possiblec. Set fast read and writes. To do this you may need to use the converters utility program, or to go through Windows Control Panel. If the latter, open Control Panel then choose Device Manager Ports COM your USB to serial converter. Right click and select Properties. Choose the Port settings tab then the Advanced button. Youll see a dialogue box like this. The Cold Light Of Day 1996 Download here. To gain more details on any problem whilst Logger or DDE Panel is running, open Com. Debug and view the Windmill Debug Screen. If youre still struggling fill in this form. How Do You Use Windmill with your GPS Receiver Amongst the more popular items in our Monitor newsletter are application stories. Wed love to know about your GPS and GIS projects using Windmill with the possibility of featuring them in an Issue of Monitor. We would, of course, be happy to credit your company as the source of our story. Monitor is delivered monthly to over 3. Further Reading. Data Logging from NMEA Devices. Monitoring coastal dye dispersion. Train wheel slip monitoring. Sea Floor Mapping with GPSGIS.