Airelectronics U-Ground, Руководство пользователя

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U-Ground OneBoard User Manual - Alarms
4
4
Alarms
Alarms
When comunicated with an U-Pilot, the OneBoard Ground Station will decode the downlink
communications and present basic information through the activation of the Alarms lines.
These lines are designed to give a 3.3V TTL signal of high when the alarm is active and low
when the signal is not toggled. The maximum signal strength the U-Ground is capable of
driving is 25 mA.
Typical use of these signal is the usage of LEDs or other kind of visual aids. If the required load
is expected to consume more than 25 mA, a MOSFET drive is mandatory to avoid circuit
damage.
The meaning of every alarm is detailed in the following table
Alarm Active when:
Alarm 1 COMMs quality level is below 70%
Alarm 2 Some voltage is below the configured value for an alarm.
Alarm 3 Distance is above the configured threshold for alarm
Alarm 4 Autopilot has risen an alarm that is neither Distance or Voltage related. This includes:
•
GPS Alarm
•
Gyro Alarm
•
ACC Alarm
•
PS Alarm
•
Qd Alarm when communicating with a fixed wing vehicle
•
Joystick Alarm
•
Magnetometer Alarm when communicating with a rotary wing vehicle
•
Joystick Alarms
Alarm 5 System Is ready for flight.
In fixed wing system this indicates:
•
No voltage or distance related alarms triggered
•
3D GPS Fix with at least 6 satellites
•
At least once since the autopilot has been comunicated the dynamic sensor was
seen to indicate above 2.5 m/s
•
No autopilot alarm risen ( except magnetometer )
In rotary wing this indicates:
•
No voltage or distance related alarms triggered
•
3D GPS Fix with at least 6 satellites
•
Magnetometer is online and magnetic module is within expected value
•
No autopilot alarm risen ( except dynamic sensor )
Alarm 6 System wants to return home.
This alarm will be triggered whenever a mission supervisor limit has been surpased at
anytime in the past.
As the user can choose to over-command the automatic return home feature, this alarm
will remain triggered to remember the need to return home.
Alarm 7 System is executing an automatic Return and Home manouver.
Airelectronics could have tailored your set of alarms for your project. So, please, check for extra
documentation Airelectronics could have transferred to you. In case of doubt. Contact
info@airelectronics.es
4.1
4.1
Audible Signal
Audible Signal
Besides toggling the corresponding line, the ground station will generate a square wave to be
feeded in a square wave buzzer.
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