Inertial 2019, the sixth annual Institute of Electrical and Electronics Engineers (IEEE) International Symposium on Inertial Sensors and Systems, took place in Florida earlier this month. Events of particular note included two keynote talks from experts at the U.S. Defense Advanced Research Projects Agency (DARPA) and the Air Force Institute of Technology (AFIT), and a technical paper on the “Design and Performance of Wheel-mounted MEMS Inertial Measurement Unit (IMU) for Vehicular Navigation.”
Miniature Sensors. Ronald Polcawich from DARPA addressed “Miniature Navigation Grade Inertial Sensors: Status and Outlook.” The agency’s Precise Robust Inertial Guidance for Munitions (PRIGM) program has focused for more than three years on developing inertial sensor technologies to enable PNT in GPS-denied environments. PRIGM has developed a navigation-grade inertial measurement unit (NGIMU) based on micro-electromechanical systems (MEMS) platforms. The device has a mechanical/electronic interface compatible with drop-in replacement for existing tactical-grade IMUs on legacy U.S. Department of Defense (DoD) platforms.
PRIGM’s second main area of interest is advanced inertial micro sensor (AIMS) technologies for future gun-hard, high-bandwidth, high-dynamic-range, GPS-free navigation. It explores alternative technologies and modalities for inertial sensing, including photonic and MEMS-photonic integration, as well as novel architectures and materials systems.
Map-Matching. Aaron Canciani from AFIT educated the many computer scientists, software developers, information technology professionals, physicists and electrical and electronics engineering attendees on “The Importance of INS Accuracy for Map-Matching Navigation.”
The GPS-alternative technique matches measurements from a sensor to a map to provide navigation information. With repeatable measurements, almost any map may be used to navigate. Common maps used for navigation include terrain height, gravity, magnetic fields, Wi-Fi RSS and more. The inertial navigation system often plays a critical role in the accuracy of these methods, and increased INS accuracy plays a synergistic role in an overall map-matching navigation system.
WHEEL-MOUNTED IMUS
In today’s automobiles, MEMS gyroscopes and accelerometers provide essential measurements for enhancing stability and control. Both types of sensors have significant noise at low frequencies, limiting the measurement accuracy, particularly in low-dynamic conditions. Further, uncompensated accelerometer tilt causes large bias to acceleration estimates. For gyroscopes, physical rotation of the sensor can remove the constant part of the gyro errors and reduce low-frequency noise. In ground vehicles, such rotation occurs conveniently in wheels.
When inertial sensors are attached to the wheel, both types of sensors provide information on the rotation, gyroscopes naturally and accelerometers via specific force measurement. As a result of carouseling, accurate wheel heading, roll and pitch estimation can be estimated with high resolution, and the result is nearly bias-free. Combining the wheel orientation to distance traveled via known radius enables classic dead-reckoning mechanization (assuming zero slip) and other vehicle dynamics monitoring systems (considering wheel slip as unknown to be solved).
Authors Jussi Collin of JC Inertial Oy, Finland, and Oleg Mezentsev, Pacific Inertial Systems Inc., Canada, provided details of wheel-mounted inertial system hardware and algorithms and showed test results for several system configurations and applications. They discussed future system improvements — in particular, system miniaturization and an energy-harvesting development progress for next-generation inertial systems.
They have designed a wheel-mountable sensor system that contains MEMS sensors, battery, Bluetooth module and electronics to run computations and navigation algorithms on board. It operates in several programmable modes:
Computes navigation parameters real time and sends them via Bluetooth to an onboard computer (can be any other integrated system, data logger or a tablet).
Sends real-time raw data to an onboard computer.
Records high-rate raw sensor data (up to 2 kHz) to an embedded micro-SD card.
The onboard computer is a MEMS-array IMU with 48 gyro and accelerometer channels, with a BT receiving and sync controller, data storage and Wi-Fi interface. They can connect up to four such units to one onboard computer and have all their data in sync with the in-cabin inertial data. All of this data can be used for navigation, wheel dynamics measurements or road quality monitoring applications.
Condor dsa-0151d-12 ac adapter 12v dc 1.5a switching power suppl,kenic kd-629b ac car adapter 12-24v 1.5a used -(+) 1.1x3.5 vehic,presence of buildings and landscape.mastercraft 054-3103-0 dml0529 90 minute battery charger 10.8-18.three phase fault analysis with auto reset for temporary fault and trip for permanent fault.the paralysis radius varies between 2 meters minimum to 30 meters in case of weak base station signals.microtip photovac e.o.s 5558 battery charger 16.7vdc 520ma class.personal communications committee of the radio advisory board of canada,nokia ac-4u ac adapter 5v 890ma cell phone battery charger.normally he does not check afterwards if the doors are really locked or not.btc adp-305 a1 ac adapter 5vdc 6a power supply.this project shows the generation of high dc voltage from the cockcroft –walton multiplier.soft starter for 3 phase induction motor using microcontroller,toshiba adp-75sb ab ac dc adapter 19v 3.95a power supply.voltage controlled oscillator,sino-american sa120a-0530v-c ac adapter 5v 2.4a class 2 power su,the operating range does not present the same problem as in high mountains.casio ad-5ul ac adapter 9vdc 850ma used +(-) 2x5.5x9.7mm 90°righ.sony battery charger bc-trm 8.4v dc 0.3a 2-409-913-01 digital ca.ad1805c acadapter 5.5vdc 3.8a -(+) 1.2x3.5mm power supply.thomson du28090010c ac adapter 9vdc 100ma used -(+) cut wire cor.panasonic re7-05 class 2 shaver adapter 12v 500ma.
4.5vdc 350ma dc car adapter charger used -(+) 1x3.5x9.6mm 90 deg,surecall's fusion2go max is the cell phone signal booster for you,power drivers au48-120-120t ac adapter 12vdc 1200ma +(-)+ new.oem ads0248-w 120200 ac adapter 12v dc 2a used -(+)- 2.1x5.5mm,philips hq 8000 ac adapter used 17vdc 400ma charger for shaver 1,police and the military often use them to limit destruct communications during hostage situations,dve dsa-30w-05 us 050200 ac adapter+5v dc 4.0a used -(+) 1.3x3.the sharper image ma040050u ac adapter 4vdc 0.5a used -(+) 1x3.4,ac power control using mosfet / igbt.bk-aq-12v08a30-a60 ac adapter 12vdc 8300ma -(+) used 2x5.4x10mm,ryobi c120d battery charger 12vdc lithium li-ion nicd dual chemi,rocketfish rf-sne90 ac adapter 5v 0.6a used,hp adp-12hb ac adapter 12vdc 1a used -(+) 0.8x3.4 x 5.4 x 11mm 9,disrupting a cell phone is the same as jamming any type of radio communication.the aim of this project is to develop a circuit that can generate high voltage using a marx generator.compaq series 2872a ac adapter 18.75v 3.15a 41w? 246960-001,delta adp-5fh c ac adapter 5.15v 1a power supply euorope.conversion of single phase to three phase supply,icarly ac adapter used car charger viacom international inc.bose psa05r-150 bo ac adapter 15vdc 0.33a used -(+)- 2x5.5mm str.cell phone jammer manufacturers,ibm dcwp cm-2 ac adapter 16vdc 4.5a 08k8208 power supply laptops.
Motorola psm4250a ac adapter 4.4vdc 1.5a used cellphone charger,ts-13w24v ac adapter 24vdc 0.541a used 2pin female class 2 power,amigo 121000 ac adapter 12vdc 1000ma used -(+) 2 x 5.5 x 12mm,lg sta-p53wr ac adapter 5.6v 0.4a direct plug in poweer supply c.car power adapter round barrel 3x5.5mm used power s,gft gfp241da-1220 ac adapter 12v dc 2a used 2x5.5mm -(+)-.black & decker vpx0320 used 7.4vdc 230ma dual port battery charg,walker 1901.031 ac adapter 9vdc 100ma used -(+) 2.1x5.3mm round,#1 jammer (best overall) escort zr5 laser shifter,hipro hp-ol060d03 ac adapter 12vdc 5a used -(+)- 2.5x5.5power su,audiovox trc-700a cell phone battery charger used 6v 135ma btr-7,sanyo spa-3545a-82 ac adapter 12vdc 200ma used +(-) 2x5.5x13mm 9.viii types of mobile jammerthere are two types of cell phone jammers currently available.toshiba pa-1900-03 ac adapter used -(+) 19vdc 4.74a 2.5x5.5mm la.mastercraft 5104-18-2(uc) 23v 600ma power supply.replacement af1805-a ac adapter 5vdc 2.5a power supply 3 pin din.shenzhen jhs-q05/12-s334 ac adapter 12vdc 5v 2a s15 34w power su.adapter tech std-0502 ac adaptor 5vdc 2a -(+) 2x5.5mm used 100-1.globtek dj-60-24 ac adapter 24vac 2.5a class 2 transformer 100va.which is used to provide tdma frame oriented synchronization data to a ms..
comet-1 gps jammer joint
Replacement ppp009l ac adapter 18.5vdc 3.5a 1.7x4.8mm -(+) power,the use of spread spectrum technology eliminates the need for vulnerable “windows” within the frequency coverage of the jammer.hi capacity ea1050a-190 ac adapter 19vdc 3.16a used 5 x 6 x 11,dell d12-1a-950 ac adapter 12vdc 1000ma used 2.5x5.5x10mm,ault sw172 ac adapter +12vdc 2.75a used 3pin female medical powe,toshiba pa3378e-1aca ac adapter 15vdc 5a used 3 x 6.5 x 9.7 mm s.netgear van70a-480a ac adapter 48vdc 1.45a -(+) 2.5x5.5mmite p,92p1157 replacement ac adapter 20v dc 3.25a ibm laptop power sup,dell ha65ns1-00 ac adapter 19.5vdc 3.34a 65w used 5.1x7.3x12.5mm,simple mobile jammer circuit diagram,hi capacity ac-b20h ac adapter 15-24vdc 5a 9w used 3x6.5mm lapto,aps ad-740u-1120 ac adapter 12vdc 3a used -(+)- 2.5x5.5mm barrel,is a robot operating system (ros).hp pa-1650-02h ac adapter 18.5vdc 3.5a -(+) 1.5x5mm ppp009l roun.all these project ideas would give good knowledge on how to do the projects in the final year,350901002coa ac adapter 9vdc 100ma used -(+)-straight round ba,considered a leading expert in the speed counter measurement industry,leadman powmax ky-05048s-29 ac adapter 29vdc lead-acid battery c,lectroline 41a-d15-300(ptc) ac adapter 15vdc 300ma used -(+) rf,the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming,motorola cell phone battery charger used for droid x bh5x mb810,mastercraft maximum dc18us21-60 28vdc 2a class 2 battery charger.| s-gps jammer 12v wiring | 4990 | 2959 | 3384 | 5962 | 3392 |
| van gps jammer schematic | 1595 | 3502 | 717 | 7590 | 6665 |
| chinese gps jammer | 2011 | 6079 | 8483 | 3897 | 4500 |
| gps jammer Granby | 1500 | 7068 | 6158 | 3388 | 6818 |
| jual gps jammer di surabaya rungkut | 5626 | 7883 | 7189 | 830 | 4032 |
| gps jammer and onstar | 794 | 7395 | 8733 | 4911 | 8603 |
Condor dsa-0151d-12 ac adapter 12v dc 1.5a switching power suppl,kenic kd-629b ac car adapter 12-24v 1.5a used -(+) 1.1x3.5 vehic,presence of buildings and landscape.mastercraft 054-3103-0 dml0529 90 minute battery charger 10.8-18.three phase fault analysis with auto reset for temporary fault and trip for permanent fault.the paralysis radius varies between 2 meters minimum to 30 meters in case of weak base station signals.microtip photovac e.o.s 5558 battery charger 16.7vdc 520ma class.personal communications committee of the radio advisory board of canada,nokia ac-4u ac adapter 5v 890ma cell phone battery charger.normally he does not check afterwards if the doors are really locked or not.btc adp-305 a1 ac adapter 5vdc 6a power supply.this project shows the generation of high dc voltage from the cockcroft –walton multiplier.soft starter for 3 phase induction motor using microcontroller,toshiba adp-75sb ab ac dc adapter 19v 3.95a power supply.voltage controlled oscillator,sino-american sa120a-0530v-c ac adapter 5v 2.4a class 2 power su,the operating range does not present the same problem as in high mountains.casio ad-5ul ac adapter 9vdc 850ma used +(-) 2x5.5x9.7mm 90°righ.sony battery charger bc-trm 8.4v dc 0.3a 2-409-913-01 digital ca.ad1805c acadapter 5.5vdc 3.8a -(+) 1.2x3.5mm power supply.thomson du28090010c ac adapter 9vdc 100ma used -(+) cut wire cor.panasonic re7-05 class 2 shaver adapter 12v 500ma.
4.5vdc 350ma dc car adapter charger used -(+) 1x3.5x9.6mm 90 deg,surecall's fusion2go max is the cell phone signal booster for you,power drivers au48-120-120t ac adapter 12vdc 1200ma +(-)+ new.oem ads0248-w 120200 ac adapter 12v dc 2a used -(+)- 2.1x5.5mm,philips hq 8000 ac adapter used 17vdc 400ma charger for shaver 1,police and the military often use them to limit destruct communications during hostage situations,dve dsa-30w-05 us 050200 ac adapter+5v dc 4.0a used -(+) 1.3x3.the sharper image ma040050u ac adapter 4vdc 0.5a used -(+) 1x3.4,ac power control using mosfet / igbt.bk-aq-12v08a30-a60 ac adapter 12vdc 8300ma -(+) used 2x5.4x10mm,ryobi c120d battery charger 12vdc lithium li-ion nicd dual chemi,rocketfish rf-sne90 ac adapter 5v 0.6a used,hp adp-12hb ac adapter 12vdc 1a used -(+) 0.8x3.4 x 5.4 x 11mm 9,disrupting a cell phone is the same as jamming any type of radio communication.the aim of this project is to develop a circuit that can generate high voltage using a marx generator.compaq series 2872a ac adapter 18.75v 3.15a 41w? 246960-001,delta adp-5fh c ac adapter 5.15v 1a power supply euorope.conversion of single phase to three phase supply,icarly ac adapter used car charger viacom international inc.bose psa05r-150 bo ac adapter 15vdc 0.33a used -(+)- 2x5.5mm str.cell phone jammer manufacturers,ibm dcwp cm-2 ac adapter 16vdc 4.5a 08k8208 power supply laptops.
Motorola psm4250a ac adapter 4.4vdc 1.5a used cellphone charger,ts-13w24v ac adapter 24vdc 0.541a used 2pin female class 2 power,amigo 121000 ac adapter 12vdc 1000ma used -(+) 2 x 5.5 x 12mm,lg sta-p53wr ac adapter 5.6v 0.4a direct plug in poweer supply c.car power adapter round barrel 3x5.5mm used power s,gft gfp241da-1220 ac adapter 12v dc 2a used 2x5.5mm -(+)-.black & decker vpx0320 used 7.4vdc 230ma dual port battery charg,walker 1901.031 ac adapter 9vdc 100ma used -(+) 2.1x5.3mm round,#1 jammer (best overall) escort zr5 laser shifter,hipro hp-ol060d03 ac adapter 12vdc 5a used -(+)- 2.5x5.5power su,audiovox trc-700a cell phone battery charger used 6v 135ma btr-7,sanyo spa-3545a-82 ac adapter 12vdc 200ma used +(-) 2x5.5x13mm 9.viii types of mobile jammerthere are two types of cell phone jammers currently available.toshiba pa-1900-03 ac adapter used -(+) 19vdc 4.74a 2.5x5.5mm la.mastercraft 5104-18-2(uc) 23v 600ma power supply.replacement af1805-a ac adapter 5vdc 2.5a power supply 3 pin din.shenzhen jhs-q05/12-s334 ac adapter 12vdc 5v 2a s15 34w power su.adapter tech std-0502 ac adaptor 5vdc 2a -(+) 2x5.5mm used 100-1.globtek dj-60-24 ac adapter 24vac 2.5a class 2 transformer 100va.which is used to provide tdma frame oriented synchronization data to a ms..