AccuGrade GPS (CD700) Diagnostics - View Caterpillar


Diagnostics - View
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1.1. Introduction
2.1. Checking the System Diagnostics
3.1. Checking GPS Status
4.2. GPS Antenna Screen
5.2. Data Link Screen

Introduction

Note: The contents of the "Setup Menu" dialog are site configurable. Depending on the "Operator Configuration" settings for your system, some of the options, soft keys, or views discussed in this manual may not be accessible. Refer to your site manager if a specific option is not available.

The software for the AccuGrade System displays diagnostic information about the devices the software detects, and the GPS Receiver. Normally you will not need to use this function.

Use the Diagnostics dialog to view the status of the devices connected to the AccuGrade System. Access the dialog from the "Setup Menu - Configuration" dialog.

Checking the System Diagnostics

To access diagnostic information complete the following steps:

  1. From the "Setup Menu - Configuration" dialog, press the Down arrow until "Diagnostics" is highlighted.



    Illustration 1g01430201

  1. Press the "OK" key. The Diagnostics screen 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 device's firmware version 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

  1. Press the "Recheck" soft key in order to recheck whether all the system devices are connected and responding.

Checking GPS Status

Press the "GPS" soft key in order to view the status of the GPS Receiver and examine the quality of the GPS solution.

GPS Antenna Screen

The following dialog shows the GPS Antenna screen. Refer to Illustration 2.




Illustration 2g01430203

Table 1 explains the fields within these dialogs.

Table 1
GPS Antenna Fields    
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
You need five or more satellites to initialize, and four or more 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 screen, press the "Data Link" soft key. The dialog that appears is similar to that shown in Illustration 3.




Illustration 3g01430205

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 shown in the Data Link screen.

Table 2
Data Link Items    
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.