Rosenbauer FIRE NOZZLES (11)
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After the Civil Protect in September, Rosenbauer Italia will also present an extensive selection of Rosenbauer products at REAS 2021 from October 8 to 10. As an absolute highlight, the RT Revolutionary Technology can be experienced at the booth (No. C10-D9 in Hall 1).The Rosenbauer team is looking forward to the visit!
Thermal imaging cameras are indispensable for modern firefighting operations. They are used for situational awareness, in search and rescue operations, or to locate the seat of the fire, to name just a few of the many applications. The cameras are an indispensable tool, especially for inside fire attacks, as they provide SCBA crews with a good view even in zero visibility. They see what is not visible to the human eye, namely the heat radiation from objects and people. It is like having a sixth sense - and enables emergency crews to orient themselves better in completely smoke-filled buildings and to recognize more details, to move around more quickly, to find people and animals faster, and to locate the seat of the fire or embers more rapidly and precisely. Protection Of Life And Health In addition to more efficient use, a thermal imaging camera also contributes to protecting the health and lives of the emergency crews: with this equipment, they can better assess the fire situation, more easily recognize dangers such as a flashover or an unstable ceiling, see what is lurking behind a door, locate escape routes and secure their way back. A crew with a camera is faster and safer on the way into and out of a burning or smoky building than a crew without The fact is, a crew with a camera is faster and safer on the way into and out of a burning or smoky building than a crew without. The thermal imaging camera is, therefore, an enormous safety asset for all those involved in an inside fire attack. Experts have long called for them to be part of the standard SCBA equipment, and ideally, each individual should carry their own withdrawal insurance with them. A Camera For Each SCBA Wearer What has so far often failed because of the cost, can now be implemented economically: every SCBA wearer has their own thermal imaging camera! Rosenbauer has expanded its existing portfolio in this respect and now offers two new, super-compact, easy-to-use, and highly attractively priced cameras: the FLIR K1 at around € 600 (exc. VAT) and the FLIR K2 for about € 1,500 (exc. VAT). FLIR K1 The FLIR K1 is a handy thermal imaging camera with a built-in rechargeable battery. It supports firefighters in assessing the situation and allows a quick overview of operational events, even in complete darkness and with a lot of smoke. The line of sight is therefore never lost. The camera is waterproof, can withstand a two-meter drop onto a concrete floor, and, at only 410 g, is an absolute lightweight. With a sensor resolution of 160 x 120 pixels and a thermal sensitivity < 100 mK, it meets the requirements for reconnaissance missions. In the process, the thermal image is overlaid by a second visual camera, thereby optimizing the displayed image. Up to 10,000 thermal images or photos (integrated digital camera) can be saved as JPEG files for documentation. With a fully charged battery, the K1 can be used to record thermal images for up to 5.5 hours. FLIR K2 The FLIR K2 is a tactical inside fire attack camera with a replaceable rechargeable battery. It has the same IR detector (focal plane array) and IR resolution (160 x 120 pixels) as the K1, but displays more image modes and higher object temperatures (up to 500 °C). Again, a second integrated visual camera overlays the displayed thermal image and optimizes the resolution. The FLIR K2 has been specifically designed and tested for inside fire attacks. It comes with two batteries that can be charged either in the camera or in an external charger within 2.5 hours. In addition, the K2 is just as easy to handle (glove-compatible one-button operation) as the K1, has the same operating time and, at around 700 g, is also one of the lightest cameras in this class. New High-End Cameras The thermal imaging camera range is rounded off by the C1 camera that can be attached to the Rosenbauer helmets Also, new to Rosenbauer's equipment range are FLIR models K33, K45, K53, K55, and K65, the latter of which is NFPA 1801:2018-certified. These cameras have IR resolutions of 240 x 180 pixels or 320 x 240 pixels. The thermal images are displayed on large, bright 4" displays and are ultra-sharp. The operating time of the cameras is more than four hours each, the batteries are charged within two hours. The thermal imaging camera range is rounded off by the C1 thermal imaging camera, the only one of its kind in the world, which can be attached to the Rosenbauer HEROS Titan and HEROS H30 firefighting helmets. Its display is simply folded in front of the helmet wearer's field of vision if required so that the thermal image is always at eye level. The huge advantage of the C1 is that the SCBA wearer has their hands free in every situation - for rescue, protection, and extinguishing.
During the latest redesign of the Rosenbauer Rescue Stairs not only the operation has been overhauled, but the CAN bus system has also been implemented from scratch. A reduction of Electronic Control Units (ECUs) was achieved by using controllers from TTControl which are certified for safety purposes. The risk and hazard analysis showed that there are safety requirements up to performance level d, as defined in ISO 13849. Simplified Architecture Based On Safety Certified Electronics With the new architecture, Rosenbauer achieved to put all safety features in one single TTControl ECU, which features the redundancy internally. Safety requirements like tilting and leveling are programmed by two independent developer teams, one team at TTControl in Brixen and another team at Rosenbauer in Leonding. On the ECU the multitasking real-time system SAFERTOS® is operating both developed algorithms in parallel. The safety algorithm stops the Rescue stair all at once. The application algorithm takes care that the machine never moves to a position where the safety algorithm would need to take control and warns the user in advance on the display. TTControl ECU combined with the SAFERTOS® guarantees the freedom of interference As the TTControl ECU combined with the SAFERTOS® guarantees the freedom of interference, the non-safety relevant application software can be maintained and deployed on the same controller without the need to repeat all the safety certification on every new software version. As the products are varying greatly based on the final customer, this is an important feature to reduce the maintenance efforts of the complete software. Reduction of ECUs With this safety architecture, Rosenbauer achieved a reduction of ECUs from six units of three different types to three units of identical type. Another reduction of electronics was performed on the hydraulic valves. The previous generation featured a valve manifold, where each valve had a small electronics module integrated, which was controlled via an individual PWM signal. Now the complexity of the system was reduced by eliminating the electronics on the valves and using two outputs for each valve instead. The TTControl ECUs have everything on board for this purpose. They have sufficient outputs and each PWM output is capable of measuring its current. The accuracy of the current measurement is sufficient for moving the valve in every position via current control without a sensor on the valve. Only actuators with position control are equipped with sensors, while all-speed control is performed without sensors. Software Development On A Virtual Model In this project pioneering work was done in the way of application software development at Rosenbauer. A virtual model was created for the whole hydraulic system, with two PWM signals for each actuator as an input. All sensor signals were measured on the real system, and used as outputs like hydraulic pressures, end positions of the actuators, CAN signals, and current values. This model was used in two ways: On one hand, it was deployed by automatic code generation onto another TTControl ECUs to enable the safety software development team to perform software tests without traveling to the rescue stairs. All relevant characteristics of the 33 ton and about 1million EURO rescue stairs were put in one controller. The software development started on the desk as well, but nobody knew how it would behave on the machine On the other hand, the model was used to develop the application software. Therefore, the hardcoded current and position controllers from TTControl were imported into Simulink. In this way, externally delivered code pieces and the model of the mechanics were operating in one PC simulation, independent of the production status of the machine and with no hardware at all. Testing on the machine Before this model-based approach, the software development started on the desk as well, but nobody knew how it would behave on the machine. The real work started at the point of time when the programmer sat in the machine. With the new method, the programmer knows that the application software is functional and must search the differences or the missing test case during the commissioning only. It turned out that everything working in the simulation also worked in real life, as the tricky part of finding correct resting positions and keeping the first and last stair of the mainframe telescope in a flat position. Efficient Software Testing From Office With the simulation, the development iterations can be driven to a maximum and the programmer gets off all the external influences. A machine of this size can be run only outside, so the programmer is exposed to the weather and to the noise of the diesel engine. For each iteration, the software needs to be downloaded to the controller, and interesting variables must be monitored and plotted for each iteration. In practice, the days get longer and are extremely stressful, as it usually takes very long until all IO checks and mechanical and electrical installations are 100 % finished. The delivery date never changes, but all the other processes take longer as planned, which must be compensated by the extra working hours of the programmer. With the simulation, the software development and testing can be done efficiently in the office, decoupled from noise, stress, and bad weather conditions. The quality and the possibility of maintenance of the generated software are much better this way. Software design The embedded code generator gives the programmer the possibility to concentrate on the software design At the software development itself, MATLAB/Simulink/Stateflow and the embedded code generator give the programmer the possibility to concentrate on the software design. The hard work of writing the code after drawing the Stateflow diagram is automated by the code generator. Even if it turns out during the commissioning that there was a wrong assumption in the model, adding an extra state or transition is only a matter of drawing and has no big impact on software that is already programmed. Another advantage of the model-based design is that the drawings of the software can be understood by the customer service and other stakeholders, who are no programmers. The self-speaking drawings in Simulink/Stateflow can be exported to HTML and published to everyone as in-depth documentation of the software.
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