Drony SIT Pilsen

Our Services

Application for traffic police

Since 2021, we have been working closely with the traffic police. Together with other emergency services we go to the most serious traffic accidents. Since April 2021, we have extended our scope to the entire territory of the Pilsen Region.

We use drones to take day and night images of the traffic accident site and then create highly accurate orthophotomaps and 3D models from this data. The result of our work is a very accurate model documenting the situation and all traces of the accident site.  In this case we are talking about accuracy in units of centimetres and each point or pixel has precise GPS coordinates.  Such an accurate record of the accident scene serves not only police officers but also forensic experts.

To work more efficiently with the data, we have developed an application called “Crash Inspector” in consultation with police officers from the traffic police department in Pilsen. This program provides police officers with a very efficient tool for fast and comfortable processing, displaying and editing of data taken by us. This means that in the accident record, officers can measure, quote, describe and mark any location or evidence.  The application then generates the accident report in the format and form according to the standards required by the police.

We successfully presented the application to representatives of all traffic police departments in the Pilsen region at a joint meeting in Pilsen in early April 2021.  On this occasion, we demonstrated our technology to the police officers and introduced them to other services that we already provide to other units of the Integrated Rescue System of the Czech Republic. After agreement with the management of the Traffic Police Service Department at the Regional Directorate in Pilsen, the Crash Inspector application will be used by all traffic police officers in our region.

 

In order to make the application as efficient as possible for the traffic police, we have added certain GIS layers. These include the display of traffic signs at the accident scene. Thanks to this feature, inspectors know exactly where what traffic sign is and can simulate an accident to better assess who is at fault, etc.

Another layer to display is the street markings. Subsequent communication between inspectors is all the easier because they can name specific streets straight away.

The last, but also very important layer is the layer showing the pinpoints. This shows the points that GIS specialists in the field target such as building corners, road markings, water diversions, power lines, and more. These points can then be used as what are known as measurement starting points – that is, the point that surveyors use for their need to measure with the plan.

Viewing layers in Crash inspector

For needs of finding the measurement starting points, we created a simple, mobile app that displays these points directly at the scene. We can then tell the inspectors which point is ideal as a measurement starting point right away, because they will see it plotted in the app. We then don’t have to limit ourselves to points on the road at the accident site, but also the surrounding area, such as fields and meadows where power poles tend to be. The roadway is not always sufficiently focused and the points may not be there.

Mobile app for VBM display

Other elements of the app include, of course, some annotation of the accident site. For these needs we have created a plotting tool in which we have several different elements to mark, for example, tracks, braking paths, etc. This feature is used to give inspectors the most detailed description of the event.

Possible drawing tools

The last task of the inspector is then to generate a report. Again to make the job easier, our application has implemented this feature with various options.

During the generation of the export there is an option to select a specific area of the photo. Simultaneously with this selection, the scale for the area is then generated. Of course there are various text editing options such as colors, text boldness, italics, bullets and other basic text formats. There is also a notation of the person generating the report – it is then absolutely clear who was in charge of the accident and once the report is passed on, for example to forensic experts, it is again possible to facilitate any communication between those involved in the investigation.

Drones in use

DJI Matrice 300 RTK

UAV designed mainly for the needs of the integrated rescue system. Carrying the DJI H20T and GL60 LED spotlight, we are able to monitor the required area for 45 minutes. The IP45 rating allows us to fly even in very harsh conditions for UAV operation. We can equip the DJI Matrice 300 with up to three payloads, but as standard we use "only" the DJI H20T and GL60.
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DJI Matrice 350 RTK

The successor to the DJI Matrice 300RTK which is mainly used for the needs of the integrated rescue system. Carrying DJI H20T or P1 payload and LED spotlight, it is capable of monitoring the required area for 45 minutes. The IP55 rating allows it to fly even in very harsh conditions for UAV operation. It is possible to equip the DJI Matrice 350 with up to three payloads, but as standard we use "only" the DJI H20T and P1 in combination with different spotlights. Compared to its predecessor it has a number of improvements:
  • Extended battery life: The TB60 batteries in the M300 have a lifetime of 200 charge cycles. The TB65 batteries used in the M350, have a lifetime of 400 charge cycles, double that of its predecessor.
  • Higher ingress protection rating: The M350 has an IP55 rating and offers better protection from rain and dust compared to the M300's IP45.
  • Improved FPV camera: The M350 FPV camera now offers night vision and 1080p image resolution. The predecessor had 960p resolution.
  • Arm lock indicator: The arms of both the DJI M300 and M350 must be unfolded and locked before flight. The M350 alerts you to unsecured arms with a warning on the controller, which the M300 cannot.
  • New Controller: The M350 comes factory equipped with the DJI RC Plus controller, which has improved ergonomics, a larger screen and extended battery life compared to the M300's Smart Controller.
  • More stable and reliable signal transmission: The M350 brings an improved anti-jamming algorithm and uses DJI's O3 Enterprise system and a total of 4 antennas for data transmission. The M300 supports DJI O2 and has two antennas.
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Carried equipment

DJI Zenmuse L1

LiDAR laser scanner with RGB camera. Using LiDAR technology (a method of remotely measuring the distance to the object being scanned using a laser beam), we create point clouds. We then use an RGB camera to add colour to the point cloud. This gives us a very accurate 3D model of reality. Our applications include monitoring traffic accidents, scanning burnt or crumbled objects. It is also planned to be deployed in other projects such as scanning important objects for the needs of the IZS (Integrated Rescue System), where we will create a basis for simulating and planning a crisis scenario.
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DJI Zenmuse H20T

The most commonly used for the need of the IZS (Integrated Rescue System). Combination of a total of 4 different sensors. But there are also plans to integrate it into our inspection system. It has an optical ZOOM camera for detailed monitoring, a thermal camera for finding fire hotspots or searching for people, a laser rangefinder for GPS targeting of important points and counting their distance from the UAV, and a wide-angle camera for a general overview.  
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GL60 Spotlight

LED spotlight to assist the IZS (Integrated Rescue System). This is the most commonly used payload at events in the dark. It was created as a replacement for the DJI Z15 Spotlight we have used so far. It now has the ability to adjust its focal length during flight. This allows us to direct the intensity of the light much more precisely on the object of interest. It is fully compatible with the DJI Matrice 210 and DJI Matrice 300.
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Every new contract for us always has the same and only goal - success and a maximally satisfied client.

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