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If the system has a large amount of survey data, it may affect the data transfer rate. Sometimes a very slow SD card makes the system unresponsive; to the user this can look like a slow/bad network connection. Therefore, it might be useful to clean up the SD card and USB drive.
Delete the Geometrics.log file on the USB drive.
Clean up the survey data on the SD card:
First, make sure that you have all the data that you need off of the SD card. Either download all survey data that you want to keep, or copy all of the contents of the SD card to another drive (perhaps to a PC).
Delete all of the data on the SD card, doing one of the following:
Use the UI to delete all of the surveys, then use the "Clean old files" button on the Admin page to empty the recycle bin on the SD card. This can be VERY slow, and because the MagArrow has a very simple web interface, the user will get no useful feedback. On a very full SD card, this process might take 30 minutes or so.
Or.... Remove the SD card from the MagArrow and after copying any data that the user still hasn't saved to a PC, format it or delete everything on it, then re-insert it. Be careful not to lose the SD card or to let it drop into the inaccessible spaces in the instrument. If you format the SD card, the ExFAT format is preferable.
If the customer can't get the data downloaded from the instrument (takes too long or stops), the data can be imported into a survey in Survey Manager, directly from the SD card (or from the PC hard drive to which the SD card data has been copied). Then the SD card can be cleaned up or formatted.
With the new version of Survey Manager (you need to update that also, not just the instrument software), the user can import a large survey, including all of the files in subdirectories, by selecting the "acquinfo.txt" file in the root directory of the survey, from the SD card.
More details about how to import/export SD card files using Survey Manager can be found in the post below:
SD card files conversion
1. Hook up Geode in normal configuration to computer Ethernet box.
2. Select Start New Survey.
3. Uncheck Line Tap.
4. Uncheck Aux.
5. Select YES to all pop up menus.
6. Locate lower left corner menu: Seismodule List Window.
7. Note what current loader version under LDVER column of table in Seismodule List Window. (Ex. 2.729)
8. In order to change the LDVER, you must first set up the table in column F from N/A to X by doing the following:
9. Select System pull down menu from the upper task bar.
10. Select Test.
11. Select Update System Board Bios.
12. Select I Agree.
13. Select Browse.
14. To set up table to enable loader version update (LDVER) select the file: GEODEFOR3D-1.0.exe.
15. Select Open.
16. Select Start Burning.
17. Select Yes.
18. Cycle power or shut down controller by using the software.
19. Restart the Geode.
20. Repeat necessary steps to get to Seismodule List Window.
21. Verify value in column is now X.
22. Select System pull down menu from the upper task bar.
23. Select Test.
24. Select Update System Board Bios.
25. Select I Agree.
26. Select Browse.
27. Select from Flash Update File Flash3_703&2_42.exe.
28. Select Start Burning.
29. Select Yes.
30. Verify Power LED light on Geode now blinks 3 seconds on 1 second off.
31. Select OK.
32. Cycle power or shut down controller by using the software.
List of approved fluids is as follows:
n-Decane
Shell Sol-71 (Shell oil product)
Isopar-G (Exxon oil Co.)
Odorless mineral sprits (Naptha)
Mineral Spirits (Naptha)
Charcoal Lighter Fluid
Kerosene lamp oil
Kerosene
Mineral Oil (medicinal Grade)
Diesel Fuel (may degrade diaphragm on marine systems)
Camp Stove fuel
White Gas
Unleaded gas
The preferred fluids are items 1-7 above.
Items 3 & 4 are not the same as paint thinner. Paint thinner will
damage the sensor coils, as will Acetone, and should not be used.
Items 11 - 13 have a very low flash point and should be used with
extra caution, although any petroleum product must be handled
carefully.
There are several Alcohols which will produce an acceptable signal,
but will tend to absorb water. This will degrade the performance of
the sensor over time. These should be replaced as soon as possible
with an alternate fluid from the above List.
Usable alcohols:
Ethanol (Grain Alcohol) at least 190 proof
Methanol (wood alcohol)
Denatured Alcohol (ethanol made poisonous)
All of these fluids must be as clean as possible to ensure that no
water or contaminates (rust) are in them. Use a filter to make sure
the fluids do not contain rust from the storage container.
Hello,
I saw in a previous post that the current firmware only supports MFAM streaming via Ethernet, and that UART5 isn't supported. I'm modifying the Dev Kit firmware to add TX output on UART4 instead, by adding a parallel Mailbox_post in spiTaskFxns.c to a new UART4 TX task/mailbox, at 460800 bps.
Before going further, I wanted to ask:
Is there any hardware-level reason UART4 wouldn't work here, beyond it just not being implemented in the stock firmware?
Does the existing SPI→Ethernet pipeline assume a single consumer, in a way that could cause timing issues if I add a second parallel mailbox post for UART4?
Has anyone tried UART-based streaming from the Dev Kit before, and if so, any known pitfalls?
Thanks in advance!
Some of the Geometrics magnetometers include a feature, called the "File Cleanup Utility", that removes files that are no longer useful from storage on the instrument. The feature's accessible from the "Support" link in the Settings page in MagNav. You might be reading this post because that page directed you to read this post before using the utility.
[This feature is not the same as the feature in MagNav to delete all of a survey's data. That feature removes information only from the database on the Android tablet, and doesn't remove any data in the instrument].
How do I use this feature?
If this is the first time you've used this feature, please read the rest of this post before proceeding.
Make sure that you're connected via WiFi to the instrument
Go to the Settings page in MagNav
Select the "Support" link.
If your instrument supports this feature, the support page will include a link to "Delete project storage". Tap it.
You should see a List of projects, with a name and a "Delete project" button for each project. This feature cleans up the data for all of the surveys in a project.
Delete any projects for which you don't want to keep the in-instrument data. You can delete the data for all of the projects that you see, but there's no harm in leaving the files for projects that you're still using.
Some projects will show a name similar to this: [c3bd]. These are early projects, in which the user-assigned name was not used in the instrument storage. It's OK to remove the data for these projects.
Why do I need to do this?
The magnetometers that use MagNav first store data on the instrument, and then sync (or download) the data to MagNav. Some instruments, for which this technical approach makes the instrument more reliable - MagEx, e.g. - do this automatically. Other instruments, such as those that allow disconnected acquisition (e.g. MagStation), store the data until the user re-connects to the instrument and manually starts the sync process.
The data stored in the instrument is not of any use once it's been downloaded, but because deletion is slow and for other technical reasons, it's left on the file system in the instrument. As it accumulates, it could eventually interfere with the performance of the instrument and should therefore be deleted.
Will this delete any data in the database in MagNav?
No, this feature doesn't remove or change any data in the database in MagNav.
When should I use this feature?
Here are a few guidelines:
Run this utility after deleting an entire project.
Run this utility after completing a long field survey.
Run this utility while doing other instrument maintenance.
Run this utility after you've collected "a lot" of data.
Run this utility when you have the impression that the instrument is unresponsive or is behaving sluggishly.
Will anything bad happen if I forget to do this?
Probably not any time soon; the storage systems on the instrument are large and quite efficient. Geometrics tests instruments with amounts of data consistent with several years of regular use, and which show no performance issues relating to file storage performance.
But don't let it go forever; follow the guidelines above.
Can I delete data for projects that I'm still using?
Yes, you can, as long as the data has already been synced to the instrument (that happens manually with MagStation and automatically with the other instruments). Once the data has been synced and is visible in MagNav, its presence in the instrument storage is no longer needed.
The following video shows the correct way to takeoff and land with MagArrow II tethered to the drone.
Takeoff and Landing
To set the time on a MetalMapperII Panasonic Toughpad tablet:
1) Using the Applications menu, open a terminal window
2) Set the date and time you want, using the following example as a guide:
sudo date -s "2024-02-20 03:25:55 PM PDT"
You may need to enter the sudo password (which is the same as the password for the standard "geometrics" user.
3) To change the timezone, use the terminal window to get a List of timezones:
ls /usr/share/zoneinfo
// To drill into a region, expand the command as follows:
ls /usr/share/zoneinfo/Pacific
Set the local timezone using this command:
// Open the timezone file to edit it. You may need to enter your user password
sudo mousepad /etc/timezone
// Type in the timezone name, of the timezone you want to use, on a single line in the file, for example like this:
Pacific/Guam
If you want to see your time in UTC, set the timezone to "Etc/UTC". If you want to set the time in UTC, then when you set the time using the "date" command, use UTC as follows:
sudo date -s "2024-02-20 03:25:55 PM UTC"
The cables between the sensors and the MFAM module are flexible circuit boards, and the length is limited to 20 inches.
It is possible to remove the MFAM module from the Development kit box and then reconnect it using a ribbon cable. That would allow you to extend the MFAM module and sensors away from the Dev Kit box. Our engineers have tested it to 4 meters.
Below are some details about the ribbon cable.
The connector on the MFAM unit is Samtec FSH-110-04-F-DH. Its mating connector is Samtec SFMH-110-02-L-D-WT.
The easiest option for an extender cable between the MFAM and the Dev Kit is a pair of cable assemblies from Samtec www.samtec.com which has male/female mass terminate connectors put onto a ribbon cable. These connectors plug directly into the MFAM I/O connector and also into the Development Kit. We are comfortable with lengths to 10 feet total. The samtec P/N for this cable is: FFMD-10-T-60.00-01-F-N
The ‘60.00’ number specifies the cable length in inches (which equals 5 feet). We have found that there is generally a 2-4 week lead, time since they are made to order and not an off-the-shelf part.
(There is another solution as well if you want to make adapter boards at each end (Dev Kit and MFAM). The exact Samtec mates for the MFAM / Dev Kit connectors are made in PCB mount connectors only, so if you make simple small adapter board to adapt the samtec connector to another connector of your choice. We've done this with ExpressPCB which is fast and inexpensive. A board set from ExpressPCB is about $70 including shipping. Our Engineering Team has a design and parts List they can send you if you're interested in going this route.)