Introduction
Note: The contents of the "Setup Menu" are configurable at the job site. The number of items that are in the "Setup Menu" may vary depending on the "Operator Configuration" settings of your system and the machine settings. Refer to your supervisor if a specific option is not available.
The software for the AccuGrade system displays diagnostic information about the devices that are connected to the system. Normally, you will not need to use the diagnostics.
Use the "Diagnostics" dialog in order to view the status of the devices that are connected to the AccuGrade system. Access the dialog from the "Setup Menu - Configuration" dialog.
Checking the System Diagnostics
In order to access diagnostic information, complete the following steps:
- From the "Setup Menu - Configuration" dialog, press the arrow keys until "Diagnostics" is highlighted.
- Press the "OK" key. The "Diagnostics" dialog appears. Refer to Illustration 1.
The screen displays a list of devices that are currently connected to the AccuGrade system. The screen also shows the current status of each of the devices. If the device is detected, the firmware version of the device appears in the "App." column. If the device is not detected the status is shown as "Not Found".
The following devices are listed for the AccuGrade system:
- Display
- GPS Receiver
- Angle Sensor
- Data Radio
- Display
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| Illustration 1 | g01430201 |
- Press the "Recheck" soft key in order to load the screen again.
Checking the Status of the GPS Receiver
Press the "GPS" soft key in order to view the status of the GPS receiver and examine the quality of the GPS solution.
"GPS Diagnostics" Screen
The following dialog shows the "GPS Diagnostics" screen. Refer to Illustration 2.
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| Illustration 2 | g01430203 |
Table 1 explains the fields within these dialogs.
| Fields of the "GPS Diagnostics" Screen | |
| Item | Explanation |
| "Satellites Used" | Number of satellites used for the current GPS position solution. The satellites must be visible at both the base station and at the GPS antenna for the machine. The system requires five or more satellites to initialize, and four or more satellites to continue working. |
| "Satellites PDOP" | PDOP is a quality indicator of the current GPS position solution. A small PDOP is better. The PDOP must be less than seven. |
| "Satellites L1" | Number of good quality L1 signals being received at both the base and the machine GPS antenna. |
| "Satellites L2" | Number of good quality L2 signals being received at both the base and the machine GPS antenna |
| "Satellites G1" | of good quality G1 signals being received at both the base and the machine GPS antenna. |
| "Satellites G2" | Number of good quality G2 signals being received at both the base and the machine GPS antenna |
| "GPS error" | An estimate of the current GPS error in the horizontal and vertical directions. |
| "GPS mode" | Type of GPS solution. |
| "GPS antenna status" | Shows as "OK" if the system is working correctly. |
| "RTK position status" | |
| "RTK search status" | |
"Data Link" Screen
In order to access the "Data Link" dialog, press the "Data Link" soft key. A screen that is similar to Illustration 3 appears.
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| Illustration 3 | g01430205 |
The data link group reports the data radio statistics for the compact measurement record (CMR) messages received from the base station.
Table 2 explains the items that are shown in the "data link" screen.
| Items of the "Data Link" Screen | |
| Item | Explanation |
| "Integrity: 100 s" | Percentage of CMR messages that were good in the last 100 seconds. |
| "Integrity: 15 min" | Percentage of CMR messages that were good in the last 15 minutes. |
| "Integrity: 3 hrs" | Percentage of CMR messages that were good in the last 3 hours. |
| "Latency" | The latency (or age) of the CMR correction used. |
| "GPS Base Station" | "Information received" shows that the GPS base station has broadcast its position. You need the GPS base station position to initialize. |
In order to return to the "Setup Menu - Configuration" dialog, press the escape key.
Sky Plot
The "Sky Plot" dialog provides real time GPS satellite constellation information that is an aid in system troubleshooting.
Use the "Sky Plot" dialog in order to perform the following:
- View current satellite constellations.
- Accept data from GLONASS satellites.
Perform the following steps in order to access the "Sky Plot" dialog.
- Press the menu key. The "Setup Menu - Configuration" dialog will appear.
- Use the arrow keys in order to highlight "Diagnostics". Press the "Ok" key.
The "Diagnostics" dialog will appear.
- Press the "GPS" soft key. The "Diagnostics - GPS" dialog will appear.
- Press the "Sky Plot" soft key. The "Sky Plot" dialog will appear with a "Loading" message. Refer to Illustration 4.
Note: If the system does not receive the GPS data within 10 seconds of the request, a "Configuration Error" dialog will appear. Refer to Illustration 5.
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| Illustration 4 | g01700291 |
- The "Sky Plot" dialog will appear once the GPS data has loaded. Refer to Illustration 6.
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| Illustration 5 | g01700294 |
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| Illustration 6 | g01710993 |
Table 3 describes the information that appears on the right side of the "Sky Plot" dialog.
| Data Field in the "Sky Plot" Dialog | |
| Field | Description |
| "Time" | The time frame for the displayed satellite constellation information. |
| "Actual SVs" | The number of satellites the system is using, based on the selected time frame. |
| "Actual PDOP" | The PDOP of the solution. |
| "Elevation mask" | The current elevation mask that is set in the GPS configuration. |
| "GLONASS" | Enabled, if the system is using GLONASS satellites. |
Sky Plot View
The left side of the "Sky Plot" dialog shows a plan view of the current satellite constellation. The section below describes the symbols that may appear in the satellite constellation.
| A GPS satellite that the system is tracking and using in the position solution. The satellites identifier is displayed next to the satellites symbol. |
| A GPS satellite that the system is tracking but not using in the position solution. The satellites identifier is displayed next to the satellites symbol. |
| A satellite that is currently below the elevation mask. The satellites identifier is displayed next to the satellites symbol. |
| A GLONASS satellite that the system is tracking and using in the position solution. The satellites identifier is displayed, prefixed with an "R", next to the satelites symbol. |
| A GLONASS satellite that the system is tracking but not using in the position solution. The satellites identifier is displayed, prefixed with an "R", next to the satellites symbol. |
| A GLONASS satellite that is currently below the elevation mask. The satellites identifier is displayed, prefixed with an "R", next to the satelites symbol. |
The plan dialog also displays the following:
- An inner circle, which represents the elevation mask
- A "Psuedorandom" number (PRN). Numbers that are preceded by an "R" indicate GLONASS satellites. Numbers that are not proceeded by a "R" are GPS satellites
Note: The system does not use data from unsound satellites nor does the system display the position of the unsound satellites in the "Sky Plot" dialog.
Editing the Sky Plot settings
Note: This feature is only available when using the MS990 receivers.
The "Sky Plot - Edit Settings" dialog is used in order to accept or reject information from GLONASS satellites.
Perform the following steps in order to edit the "Sky Plot" settings.
- From the "Sky Plot" dialog, press the "Edit Settings" soft key. The "Sky Plot - Edit Settings" dialog will appear. Refer to Illustration 7.
- Press the up or right arrow key in order to toggle "Yes" or press the left or down arrow key to toggle "No". If you wish to accept the GLONASS corrections, set the field to "Yes".
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| Illustration 7 | g01705262 |
- Press the "OK" key in order to accept the GLONASS corrections and return to the "Sky Plot" dialog. Press the escape key in order to cancel any changes and return to the "Sky Plot" dialog. The changes will take effect immediately.