60 Show report | Intergeo medical services in Bangladesh, particularly with reference to how that nation’s periodic flooding events make roads – and hence conventional medical aid logistics – impossible. “Especially serious is that lots of people die from snake bites after flood events, because they can’t receive the life-saving anti-venoms in time, so in March 2024, we showed successfully that we could rapidly deliver those medications to victims in flooded areas,” König said. We met with Inertial Labs, which discussed the second-generation version of the RESEPI (remote sensing payload instrument) Lidar payload with us, the development of which was motivated by a combination of needing to update software and user experience features, and wanting to open up new markets for remote sensing. “Traditionally, RESEPI has primarily been an airborne Lidar scanning system, and aerial users like to have some very particular features, like a real-time digitalised point cloud; that is, one that is interfacing back and forth with the UAV. And things like that required a CPU with an increased count of higher power cores to achieve the real-time computation of the point cloud,” said Will Dillingham. “It also required a lot more ports, both for electrical connections and signal interfacing, with not only DJIs but WISPRs, FreeFlys, Wingtras and all these other UAVs that businesses are flying, many of which have their own network languages and custom electrical interfacing. “Making a single payload that can mount electrically and communicate smoothly with all of those isn’t easy, but it was maybe the most important reason behind making the RESEPI GEN-II.” In addition to aerial survey, Inertial Labs is aiming the new RESEPI towards ground-based, mobile-mapping applications, which requires stronger IMUs, more electrical options for wheelspeed sensor integrations and more data ports (five-port Gigabit Ethernet is available, enabling arrangements such as 360o multi-sensor masts). As with its predecessor’s general architecture, the RESEPI GEN-II features a front-mounted Lidar (this may be an Ouster product or a Hesai device) for point-cloud generation, and a downwardpointing camera (a RIEBO R2 or a Sony ILX-LR1) for overlaying colour and unlocking numerous intelligent features in the point cloud. These mount on an enclosure that houses a six-core CPU from Variscite with 8 GB of DDR4 RAM and 16 GB of eMMC flash memory storage. “Everything is CPU-based in RESEPI GEN-II, which is an important differentiator versus some other products. GPUs tend to be very power-hungry systems, and for UAVs, power consumption is flight time. There’s a crucial trade-off there, so limiting power usage by keeping everything CPU-based makes for a more viable product all-round,” Dillingham added. Maxtena launched its new dualfrequency band GPS patch antenna, the MIA-1227-1575A, so named for covering GPS L1 at 1575 MHz and L2 at 1227 MHz. “It’s a ceramic, stacked, active patch in a 37 x 35 mm form factor; standard with a 240 mm cable and SMA connector, fully customisable for parameters like cable length and connector form factor,” said Arturo Proskauer. “We’ve been working on this for a few months now and some of the top applications, given its light weight and small size and great performance, will be military missions, autonomous driving and high-precision robotic vehicles. It is designed and engineered onsite, and also tuned as needed for each specific application, depending on the device and environment of the antenna.” A stacked patch antenna consists of multiple patch elements placed one over the other in descending order of size; two elements (corresponding to the two frequency bands) in the case of the MIA-1227-1575A. Active patches are those that embed circuitry and filtering within the antenna; in this instance via a PCB on the MIA-1227-1575A’s back side, with the low-noise amplifier (LNA) and front-end filtering protected behind a shield. December/January 2025 | Uncrewed Systems Technology Inertial Labs’ RESEPI GEN-II, shown here with an Ouster OS1-64, one of several options for its front-mounted Lidar FlyXDrive’s TW-Neo tilt-wing UAV
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