ILS Inspection

Our solution for ILS Inspection provides real-time measurements that allow better ground checks and reduced flight inspection time.

PLENTY OF ADVANTAGES 

QUICK

ILS measurements in a few minutes, minimising runway downtime and reducing indirect costs.

AUTONOMOUS

The drone flies 100% autonomously and the pilot just monitors and analyses the data in real time.

FLEXIBLE

Day&night operations allow easier scheduling. And with portability, it can serve remote locations.

SAFE & ECO

It removes the need of hazardous flight inspection manoeuvres. No noise or pollution.

PERFORMING ILS INSPECTIONS IS AS EASY AS 3 STEPS

1. Register the Operation
2. Inspect the ILS
3. Generate the Reports

Preparing the operation takes less than 1 minute. The only action that has to be done is to select the airport and the runway from our database. Once this is done, all the required data is generated automatically: missions, waypoints, distances, altitudes, etc. There is no need to read the procedures to figure out which measurements that are to be made and where. Once the operation is created in our platform, one can simply access our Calibration Tool App in the tablet and download it with all the tasks to be performed. This database of airports, runways & NAVAIDs can be expanded and updated with an easy-to-use web interface.

Once the corresponding operation has been downloaded to the inspection app, the operator launches the mission & monitors the automated procedures. The operator is guided throughout the mission. Each mission takes only a few minutes of flight and can be repeated as many times as needed. Measurements are available in real-time, so ILS adjustments can be made quickly by the technicians.

Reports are viewable on-site through the app. There is no need to download the measured data obtained to a computer or to go back to the office to process it. Reports contain all the relevant measurements and parameters as they would appear on any report from flight inspection aircraft, organised in tables and images. Reports, along with all the measurements, images or videos, are uploaded into our platform, being accessible for future reference or for additional processing.

OUR PROCEDURE PERFORMS THE MAIN CHECKS FOR LOC & GS

LOCALISER

  • Course Alignment
  • Width
  • Course alarms (left/right)
  • Width alarms (min/max)
  • Clearance (+/-35º)

GLIDESLOPE

  • Angle
  • Width
  • Angle alarms (high/low)
  • Width alarms (min/max)

CAPABILITIES TO HELP TECHNICIANS DURING INSPECTIONS

ILS SIGNAL PARAMETERS
REAL-TIME GRAPHS
µA & DDM UNITS
SINGLE/DUAL FREQUENCY
REPORTS

In order to allow real knowledge of the ILS facilitie, our solution provides the main signal parameters on the screen:

DDM (µA & DDM) SDM
Field Strength (dBm) Frequency offsets
Modulation depth (90/150Hz) Tone frequency (90/150Hz)
Frequency separation ID code

Just like the flight inspection aircraft consoles, ILS data and graphs are available in real time. In this case, the graphs and data can are available directly for the technician on the ground.

Our data visualisation app allows to display all data and graphs in different units, such as micro-amperes (µA) or DDM. This is very useful for technicians, as they usually get measurements in µA from the flight inspection aircraft console, but they need the DDM value because that’s what they get from their Portable ILS Receivers (PIR) on the ground.

CANARD’s receiver is designed to analyse both single and dual-frequency ILS facilities. This means that COURSE and CLEARANCE signals are processed and analysed separately. The JOINT (course+clearance) signal and parameters are also available.

The PDF reports with the measurements and graphs of the inspection are available in the tablet on the spot, so they can be printed or shared quickly.

BENEFITS & USE CASES

BETTER GROUND CHECKS
REDUCED FLIGHT INSPECTION TIME
EXTENDED PERIOD BETWEEN FLIGHT INSPECTIONS

CANARD’s solution can reach specific areas where other methods cannot, providing accurate and continuous measurements at different locations and altitudes. This translates to quicker, more insightful and repeatable ground checks. This specially relevant for GLIDESLOPE, where there are no means to obtain measurements far enough or high enough other than flight inspection aircraft.

Some of the measurements performed by the drone can replace flight inspection manoeuvres, such as alarm checks or width checks. This means a reduction of 8-12 manoeuvres of the flight inspection aircraft for a periodic inspection (1-2 hours of flight time, depending on airport characteristics).

By taking measurements at relevant locations and altitudes, data can be correlated with flight checks, setting the base for extending the time between flight inspections with aircraft.

SPECS & FAQ

1Does this solution fully replace the need of flight inspection aircraft?

No, the flight inspection aircraft is still required to verify the ILS throughout its coverage (several miles away from the runway). The drone solution is not aimed to replace the aircraft, but to complement it and make it more efficient, reducing the required flight inspection time, as well as direct and indirect costs.

2How long does it take to do an ILS inspection?

Each measurement in the procedure takes about 2-3 minutes to perform, and each one of them can be executed as many times as needed. With our solution, it takes about 15 minutes of flight to perform the measurements for LOC and about 10 minutes to perform the GS measurements. This is the time required to obtain the measurements for a typical periodic inspection.

3Is this solution certified?

The ILS receiver developed by CANARD has been validated in several laboratory using calibration equipment to verify that it complies with ICAO Doc 8071 accuracy requirements. The complete solution (drone, receiver and software) has been tested in several airports to compare results with other methods, such as ground measurements and flight inspection.

4Can the solution be purchased?

Yes, in fact, we have designed all the tools so that anyone can do the inspections for the airport after receiving our training. The solution can be acquired by airport operators, ANSPs, CAAs or any company or entity that can provide this service to airports. Ask as for a quote to acquire the solution.

5Can you operate it in harsh weather conditions?

Yes, we have performed inspections with with up to 15-knot WINDS and even with light RAIN. Although the real benefit is that with this solution, you have the flexibility of taking advantages of small windows where the wind goes down or it stops raining.

6How far & high does the drone fly?

The drone can fly several km away and hundreds of meters high if needed. However, according to our procedures, the drone flies approximately within 500m in front of the ALS, and below 120 meters AGL.

7How long do the batteries last?

Depending on weather conditions, the batteries can last 15-25 minutes. This is more than enough to perform LOC or GP measurements with the same set of batteries. In any, case, it takes less than 1 minute to change batteries and fly again.

8How do you ship the drone to different airports?

All the equipment can be carried out as checked-in luggage with any commercial airline. We have reached the most remote locations taking up to 4 different flights with just 1 person without any issue. Batteries need to be carried as carry-on luggage.

9Are you allowed to fly drones at airports?

Yes, by obtaining the necessary authorisations in each country. CANARD has been authorised to fly drones in airports in several countries already, and we can help our customers that acquire our solution to obtain such authorisations. This is a very important matter, as safety is paramount in aviation and all procedures and coordination protocols must be stablished and follow to ensure safety.

10I already have a drone, can it be used with your software for ILS calibration?

Our solution is compatible with DJI M600 PRO and DJI M210 RTK drones. Contact us if you want a quote for a license to be able to use our software and training to perform ILS inspections with it.

11Can this solution perform all the types of inspections?

Yes, the system is able to do different types of visual inspections (PAPI, ALS, Lights), ILS measurements, photogrammetry and others. Al the capabilities are built into the same app. Contact us to get a quotation for a solution for multiple inspections.

12What ILS receiver do you use?

We have developed our own ILS receiver, light and small enough so it can be integrated in DJI drones for a very flexible and easy-to-use solution. This receiver has been specifically designed for this purpose and has been validated in several labs against ICAO Doc 8071 requirements for accuracy.

13How accurate are your measurements?

Comparing our results with a flight inspection aircraft, in some scenarios we have achieved a difference of under 0.03º in measuring an Glideslope angle, or 0.04º measuring a localiser width. To provide a reference, the tolerance for a GS angle is +/-0.12º for a CAT III ILS and the tolerance for a LOC width can be approximately +/-0.35º for a CAT III ILS (the tolerance depends on the length of the runway).

CONTACT US TO GET A QUOTE FOR AN INSPECTION OR ACQUIRING OUR SOLUTION

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