i got phantom 4 pro gimbal with camera i installed special firmware version (V01.06.0910) recommended by seller . it is not transmitting video nor picture to my mobile. I tried several times no success.
The innovation continues with SPEAG's release of cSAR3D V2.0. This release fully integrates all cSAR3D phantom types: Flat, Left Head, Right Head and Quad. Shipments of cSAR3D Quad started in November 2014 and have far exceeded our expectations. SAR measurement of simultaneous transmisson is supported, as is base station simulator automation with both CMU200 and CMW500 from Rohde & Schwarz.
Dji Phantom 4 Pro V2.0
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Unoccupied aerial vehicles (UAVs), or "drones," are increasingly used as a tool for cetacean research, but knowledge about how these tools contribute to underwater sound is lacking. In this study, underwater sound levels of three commonly used UAV models (Mavic Pro Platinum, Phantom 4 Pro v2.0, Inspire 1 Pro) were recorded. For each model, three replicate flights were conducted at 36 positions at standardized horizontal (0-30 m) and vertical (2-40 m) distances from a hydrophone (1 m depth). Median broadband received levels of the Inspire were highest at 96.5 dBrms 141-17 783 Hz re 1 Pa2, followed by the Phantom (92.4 dBrms 141-17 783 Hz re 1 Pa2) and Mavic, which was quietest (85.9 dBrms 141-17 783 Hz re 1 Pa2). Median ambient sound levels in the absence of an UAV were 82.7 dBrms 141-17 783 Hz re 1 Pa2. Significant increases in ambient sound levels associated with UAV flights occurred at higher altitudes than previously reported, and received levels decreased more with increasing horizontal distance of the UAV than with altitude. To minimize potential noise impacts on sensitive marine animal subjects, we recommend increasing horizontal distance to the animal, rather than altitude, and choosing the quietest UAV feasible.
A tissue-mimicphantom has been constructed with a simplified structure with liver and tumorpart. The dielectric properties of the tumor and normal liver tissues aredistinctly different, by the factors of 6-7.5 in the conductivity and 2-5 inthe permittivity at 10 to 20 MHz [3]. The liver mimic region (agar, 15 g/L;NaCl, 2 g/L; CuSO4, 1 g/L) and tumor mimic region (agar, 15 g/L; NaCl, 16 g/L)are constructed, where dielectric properties are measured using a DAK system(SPEAG, Switzerland). The thermal conductivity and specific heat capacity arecalculated as in [4].
Simulation isperformed to calculate the effect of RF electric field and resulting heatgeneration in the tissue mimic agar-water gel phantom. Using the FDTD method,the SAR map in the phantom is calculated. This SAR information is used as a mapof thermal energy source. The power is adjusted to 100 W at 13.56 MHz. Thetotal simulation and experiment time was 2 hour. Electromagnetic and thermalsimulation were performed using Sim4Life V2.0 (SPEAG, Switzerland).
We havedesigned, constructed, and tested experimentally the MR compatible RFhyperthermia system working at 13.56 MHz without affecting MR image acquisitionat 128 MHz [4]. The mimetic diagram of the MR compatible RF hyperthermia systemis shown in Fig. 1 and the whole system arrangement is shown in Fig. 2. Thephantom in the MRI bore is properly heated as expected (13.56 MHz, 100 W) for 2hours. And MR temperature images of the phantom were obtained every 20 minutesusing a 3.0 T Achieva MRI (Philips, Netherlands). PRFs methods (FFE sequence,TE = 15 msec, TR = 300 msec) was used for MR thermometry [5].
Illinois Department of Natural Resources (IDNR) staff operated a DJI Phantom 4 Pro v2.0 small uncrewed aerial system (sUAS) during a demonstration of the ABCD on September 15, 2022, which presented an opportunity for applying large scale particle image velocimetry (LSPIV) to the recorded video. A video of the water surface was recorded by a camera on the sUAS, aimed directly downward, during operation of the ABCD. This data release contains both raw and motion-stabilized frames extracted from 30 seconds of this video, a .mat file containing the results of analyzing the stabilized frames using PIVlab v2.59 (Thielicke, 2014; Thielicke and Stamhuis, 2014; Thielicke and Sonntag, 2021), embedded within RIVeR v2.6 (Patalano and others, 2017), and a thumbnail image of surface velocity vectors overlain on a frame of the video. e24fc04721
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