An albpower line sensoratross glider, designed by MIT engineers, skims the Charles River. Photo: Gabriel Bousquet
MIT engineers have designed a robotic glider that can skim along the water’s surface, riding the wind like an albatross while also surfing the waves like a sailboat.
In regions of high wind, the robot is designed to stay aloft, much like its avian counterpart. Where there are calmer winds, the robot can dip a keel into the water to ride like a highly efficient sailboat instead.
The robotic system, which borrows from both nautical and biological designs, can cover a given distance using one-third as much wind as an albatross and traveling 10 times faster than a typical sailboat. The glider is also relatively lightweight, weighing about 6 pounds. The researchers hope that in the near future, such compact, speedy robotic water-skimmers may be deployed in teams to survey large swaths o ethernet f the ocean.
“The oceans remain vastly undermonitored,” says Gabriel Bousquet, a former postdoc in MIT’s Department of Aeronautics and Astronautics, who led the design of the robot as part of his graduate thesis. “In particular, it’s very important to understand the Southern Ocean and how it is interacting with climate change. But it’s very hard to get there. We can now use the energy from the environment in an efficient way to do this long-distance travel, with a system that remains small-scale.”
Bousquet will present details of the robotic system this week at IEEE’s International Conference on Robotics and Automation, in Brisbane, Australia. His collaborators on the project are Jean-Jacques Slotine, professor of mechanical engineering and information sciences and of brain sciences; and Michael Triantafyllou, the Henry L. and Grace Doherty Professor in Ocean Science and Engineering.
An albatross glider, designed by MIT engineers, skims the Charles River.
The physics of speed
Last year, Bousquet, Slotine, and Triantafyllou published a study on the dynamics of albatross flight, in which they identified the mechanics that enable the tireless traveler to cover vast distances while expending minimal energy. The key to the bird’s marathon voyages is its ability to ride in and out of high- and low-speed layers of air.
Specifically, the researchers found the bird is able to perform a mechanical process called a “transfer of momentum,” in which it takes momentum from higher, faster layers of air, and by diving down transfers that momentum to lower, slower layers, propelling itself without having to continuously flap its wings.
Interestingly, Bousquet observed that the physics of albatross flight is very similar to that of sailboat travel. Both the albatross and the sailboat transfer momentum in order to keep moving. But in the case of the sailboat, that transfer occurs not between layers of air, but between the air and water.
“Sailboats take momentum from the wind with their sail, and inject it into the water by pushing back with their keel,” Bousquet explains. “That’s how energy is extracted for sailboats.”
Bousquet also realized that the speed at which both an albatross and a sailboat can travel depends upon the same general equation, related to the transfer of momentum. Essentially, both the bird and the boat can travel faster if they can either stay aloft easily or interact with two layers, or mediums, of very different speeds.
The albatross does well with the former, as its wings provide natural lift, though it flies between air layers with a relatively small difference in windspeeds. Meanwhile, the sailboat excels at the latter, traveling between two mediums of very different speeds — air versus water — though its hull creates a lot of friction and prevents it from getting much speed. Bousquet wondered: What if a vehicle could be designed to perform well in both metrics, marrying the high-speed qualities of both the albatross and the sailboat?
“We thought, how cou VPN gateway ld we take the best from both worlds?” Bousquet says.
Out on the water
The team drafted a design for such a hybrid vehicle, which ultimately resembled an autonomous glider with a 3-meter wingspan, similar to that of a typical albatross. They added a tall, triangular sail, as well as a slender, wing-like keel. They then performed some mathematical modeling to predict how such a design would travel.
According to their calculations, the wind-powered vehicle would only need relatively calm winds of about 5 knots to zip across waters at a velocity of about 20 knots, or 23 miles per hour.
“We found that in light winds you can travel about three to 10 times faster than a traditional sailboat, and you need about half as much wind as an albatross, to reach 20 knots,” Bousquet says. “It’s very efficient, and you can travel very fast, even if there is not too much wind.”
The team built a prototype of their design, using a glider airframe designed by Mark Drela, professor of aeronautics and astronautics at MIT. To the bottom of the glider they added a keel, along with various instruments, such as GPS, inertial measurement sensors, auto-pilot instrumentation, and ultrasound, to track the height of the glider above the water.
“The goal here was to show we can control very precisely how high we are above the water, and that we can have the robot fly above the water, then down to where the keel can go under the water to generate a force, and the plane can still fly,” Bousquet says.
The researchers decided to test this “critical maneuver” — the act of transitioning between flying in the air and dipping the keel down to sail in the water. Accomplishing this move doesn’t necessarily require a sail, so Bousquet and his colleagues decided not to include one in order to simplify preliminary experiments.
In the fall of 2016, the team put its design to the test, launching the robot from the MIT Sailing Pavilion out onto the Charles River. As the robot lacked a sail and any mechanism to get it started, the team hung it from a fishing rod attached to a whaler boat. With this setup, the boat towed the robot along the river until it reached about 20 miles per hour, at which point the robot autonomously “took off,” riding the wind on its own.
Once it was flying autonomously, Bousquet used a remote control to give the robot a “down” command, prompting it to dip low enough to submerge its keel in the river. Next, he adjusted the direction of the keel, and observed that the robot was able to steer away from the boat as expected. He then gave a command for the robot to fly back up, lifting the keel out of the water.
“We were flying very close to the surface, and there was very little margin for error — everything had to be in place,” Bousquet says. “So it was very high stress, but very exciting.”
The experiments, he says, prove that the team’s conceptual device can travel successfully, powered by the wind and the water. Eventually, he envisions fleets of such vehicles autonomously and efficiently monitoring large expanses of the ocean.
“Imagine you could fly like an albatross when it’s really windy, and then when there’s not enough wind, the keel allows you to sail like a sailboat,” Bousquet says. “This dramatically expands the kinds of regions where you can go.”
This research was supported, in part, by the Link Ocean Instrumentation fellowship.
Tags: cellular modem ethernet, 4g LTE router, 3g wireless router, 4g LTE router with SIM card, cellular router vendor, verizon 4g LTE router, best industrial wifi router, 4g modem router, 4g modem router wifi, att 4g router, cellular router wifi, industrial multi sim cellular router, m2m cellular router, verizon industrial router, 4g lte gateway, 4g lte modem, industrial cellular vpn router, industrial 3g m2m, industrial l2tp cellular router, industrial ethernet router, plc router, 12vdc lte router, 4g lte router dual SIM, multi SIM LTE router, cellular router manufacturer, edge gateway, industrial iot gateway, overhead line sensor, distribution line sensor, distribution line fault detection, medium voltage smart grid sensor, MV smart grid sensor, smart grid sensor, power line sensor, power sensor, MV sensor, Grid Fault Detection, Line Monitoring, Grid Analytics, Predictive Grid Analytics, Grid Monitoring, Grid Analytics System, Power Fault Detection, Advanced Grid Analytics, Intelligent Line Monitoring, distribution fault detection, smart vending machine, smart vending solutions, QR code vending machine, telemetry vending machine, intelligent vending machine, touch screen for vending machine, vending software, cashless vending, coupon vending machine, iot vending machine, vending machine card reader, POS vending machine, smart vending machine software, credit card vending machine, Industrial router, cellular router, 4g router, LTE router, 3g router, M2M router, wireless router, wireless m2m router, wireless m2m, Industrial Wireless M2M, Industrial Wireless M2M Router, Industrial Wireless M2M products, M2M wireless producdts, WiFi M2M Router, Industrial Wireless M2M gateway, industrial IoT router, industrial IoT gateway, industrial LTE router, Industrial router, cellular router, 4g router , LTE router, 3g router , M2M router, wireless router, wireless m2m router, WiFi M2M Router, Industrial Wireless M2M Router, M2M IoT router, industrial wireless router, industrial M2M router, industrial LTE router, Industrial VPN router, Dual SIM M2M router, M2M gateway, IoT gateway, Industrial router, low cost industrial router , low cost cellular router, low-cost LTE router, low-cost M2M router, compact industrial router, low-cost cellular router , cellular router, low-cost 4g router , LTE router, 3g router , M2M router, wireless router, wireless m2m router, WiFi M2M Router, Industrial Wireless M2M Router, M2M IoT router, industrial wireless router, industrial M2M router, industrial LTE router, Industrial VPN router, Dual SIM M2M router, M2M gateway, IoT gateway, LTE Cat 1 router, Embedded LTE Cat 1 router, Industrial LTE Cat 1 router, Verizon Embedded modem, Verizon Embedded router, Overhead Line Monitoring, Distribution Power Line Monitoring, Grid Analytics System, overhead Line sensor, grid fault detection, distribution Line Monitoring, grid fault location, Smart Vending, touchscreen vending, cashless vending, cloud VMS, vending retrofit, smart vending solution, vending vms, cashless payment, vending route optimization, vending inventory management, vending retrofit, vending PC, vending computer, Android vending computer, vending computer, Android vending computer, Android industrial computer, 崀山, 崀山科技, 崀山科技全球服务中心, LangShan Technology Global Service Center, LangShan Technology, LangShan, china webdesign, seo, web design, 企业建站, 外贸商城, 网站推广, 技术兼职, 技术支援, 技术支持, SEO, joomla template, joomla webdesign, joomla web design, joomla seo, wordpress themes, wordpress webdesign, wordpress web design, wordpress seo, magento themes, magento webdesign, magento web design, magento seo, opencart themes, opencart webdesign, opencart web design, opencart seo, prestashop themes, prestashop webdesign, prestashop web design, prestashop seo, 崀山, 崀山科技, 崀山科技全球服务中心, LangShan Technology Global Service Center, LangShan Technology, LangShan, china webdesign, seo, web design, 企业建站, SEO, joomla template, joomla webdesign, joomla web design, joomla seo, wordpress themes, wordpress webdesign, wordpress web design, wordpress seo, magento themes, magento webdesign, magento web design, magento seo, opencart themes, opencart webdesign, opencart web design, opencart seo, prestashop themes, prestashop webdesign, prestashop web design, prestashop seo, wordpress shop, wordpress plugins, wordpress plugins shop, lte, 4g, 4g-lte, 3g, umts, dsl, ethernet, cellular, gprs, wireless, wired, wi fi, vpn, m2m vpn, openvpn, ipsec-vpn, secure, reliable, dual sim, 2 sim, redundant, rugged, din rail, din rail mounting, ul certified, fcc certified, ptcrb certified, verizon wireless certified, att certified, ce certified-, emark certified, azure iot certified, cost effective, ipv6, python programming, reliability, security, high-speed, lte cat 1, router, gateway, routers, cellular gateway, modem, hardware, software, cloud platform, applications, ethernet switch, managed switch, vehicle router, car router, dtu, data terminal unit, computer, vending computer, vending pc, manufacturer, manufacturing, android computer, iot, industrial iot, industrial internet of things, m2m, industrial m2m, m2m communication, remote communication, wireless m2m, remote connectivity, remote access, m2m connectivity, iiot, industrial networking, industrial wireless, m2m iot, smart vending, touchscreen vending, cloud vms, telemeter, vending telemetry, cashless vending, light industrial, commercial, distribution automation, distribution power line monitoring, fault location, fault detection, da monitoring, smart grid, transformer monitoring, intelligent substation, goose messaging, remote machine monitoring, remote secure networks, remote secure networking, secure web based scada , remote diagnostics, remote maintenance, plc programming, intelligent traffic enforcement, ct scanners remote monitoring, mri remote monitoring, healthcare, wireless atm, branch networking, retail, digital signage, wastewater treatment, remote monitoring, industrial automation, automation, industrial transport, inhand, inhand network, inhand networks, Industrial IoT, IIoT, Industrial IoT Manufacturer, Industrial IoT Connectivity, Industrial IoT Products, Industrial IoT Solutions, Industrial IoT Products, industrial IoT Gateway, industrial IoT router, M2M IoT gateway, M2M IoT router, industrial router, Industrial IoT Router/Gateway, industrial IoT Gateway, industrial LTE router, Industrial VPN router, Dual SIM M2M router, Entry level Industrial Router, Cost effective, 3G 4G LTE, WiFi, VPN industrial router for commercial and industrial and M2M/IoT applications, Industrial 3G Router, Industrial 3g router, UMTS router, VPN routerIndustrial 3g router, UMTS router, VPN router, DIN-Rail router, cellular router, Industrial IoT Gateway, Industrial IoT Gateway, M2M gateway, VPN gateway, remote PLC programming, Industrial Cellular Modem, Cellular modem, data terminal unit, 3g modem, Industrial 3G Cellular Modem, 3g modem, industrial cellular modem3g modem, industrial cellular modem, industrial wireless modem, data terminal unit, Android Industrial Computer, Android Industrial Computer, Vending PC, Vending Telemetry, Vending Telemeter, Android Industrial Computer, Android Industrial Computer, Vending PC, Vending Telemetry, Vending Telemeter, Touchscreen & Vending PC, Vending Touchscreen, Vending Telemeter, Vending Telemetry, Vending Computer, Industrial LTE Router, industrial IoT Gateway, industrial LTE router, Industrial VPN router, Dual SIM M2M router, Industrial IoT Router/Gateway, industrial IoT Gateway, industrial LTE router, Industrial VPN router, Dual SIM M2M router, Industrial LTE Router, Industrial LTE router, industrial 4G/3G router, router industrial, cost-effective industrial LTE router, Industrial LTE Router, Industrial LTE router, industrial IoT router, router industrial, cost-effective M2M router, M2M LTE router, Industrial 3G Router , Industrial 3g router, industrial wireless router, VPN router, DIN-Rail router, cellular router, Industrial 3G Router , Industrial 3g router, industrial wireless router, VPN router, DIN-Rail router, cellular router, Distribution Power Line Monitoring System, Overhead Line Monitoring, Distribution Power Line Monitoring, Fault detection & location, Grid Analytics System, Remote Machine Monitoring & Maintenance System, IoT Remote Monitoring, Prognostics and Health Management, Remote connectivity, Remote Maintenance, Smart Vending, smart vending, InHandGo, retrofit, touchscreen vending, cashless vending, cloud VMS, Transformer Monitoring, Transformer Monitoring, substation monitoring, grid LTE router, wireless communication, smart grid, Remote Automation, Remote Automation, Secure remote networks, web SCADA, Remote Diagnostics, Remote PLC programming, Intelligent Traffic Enforcement, Intelligent Traffic Enforcement, wireless networking, cellular router, Wireless ATM Solution, Wireless ATM, ATM Remote Diagnostic, prestashop 多语商城, opencart 外贸商城, 网页设计, 网站建设, 企业建站, 商城网站, 集团网站, 海外网站, 营销网站, 网站推广, 华人网站建设, 华人网站维护, 华人网络兼职, china webdesign, webdesign, seo, joomla web design, 香港網頁設計, 網站建設, 企業建站, 商城網站, 集團網站, 海外網站, 營銷網站, 網站推廣, web design, joomla webdesign, wordpress webdesign, opencart webdesign, magento webdesign, durpal webdesign, vtiger crm, adempiere erp, compiere erp, hosting, domains, vps, email marketing, joomla 网页设计, wordpress 建站, magento 大型外贸商城, durpal 门户网站, seo 网站推广, 网站自然排名, joomla 網站製作, wordpress 定制開發, opencart 維護修改, prestashop 模板修改, magento 培訓實施, durpal 定制修改, seo 營銷推廣, 外鏈收錄排位, joomla, wordpress, opencart, prestashop, magento, durpal, zencart, crm, erp, edm, marketing, joomla template, wordpress themes, magento themes, opencart themes, prestashop themes, 崀山, 崀山科技, 崀山科技全球服务中心, LangShan Technology Global Service Center, LangShan Technology, langshantech, LangShan, china webdesign, 網頁製作, 網頁設計, 企业建站, 企業建站, 在線商城, 營銷網站, 網站推廣, 網站營銷, 排名推廣, 產品推廣, 主機維護, 公司兼職, 網站SEO, joomla seo, wordpress seo, joomla 網站推廣, opencart 網站推廣, prestashop 網站推廣, wordpress 網站推廣, magento 網站推廣, joomla 網站排名, prestashop 網站排名, wordpress 網站排名, opencart 網站排名, prestashop 多语商城, opencart 外贸商城, 网页设计, 网站建设, 企业建站, 商城网站, 集团网站, 海外网站, 营销网站, 网站推广, 华人网站建设, 华人网站维护, 华人网络兼职, china webdesign, webdesign, seo, joomla web design, 香港網頁設計, 網站建設, 企業建站, 商城網站, 集團網站, 海外網站, 營銷網站, 網站推廣, web design, joomla webdesign, wordpress webdesign, opencart webdesign, magento webdesign, durpal webdesign, vtiger crm, adempiere erp, compiere erp, hosting, domains, vps, email marketing, joomla 网页设计, wordpress 建站, magento 大型外贸商城, durpal 门户网站, seo 网站推广, 网站自然排名, joomla 網站製作, wordpress 定制開發, opencart 維護修改, prestashop 模板修改, magento 培訓實施, durpal 定制修改, seo 營銷推廣, 外鏈收錄排位, joomla, wordpress, opencart, prestashop, magento, durpal, zencart, crm, erp, edm, marketing, joomla template, wordpress themes, magento themes, opencart themes, prestashop themes, 崀山, 崀山科技, 崀山科技全球服务中心, LangShan Technology Global Service Center, LangShan Technology, oowebdesign, LangShan, china webdesign, 網頁製作, 網頁設計, 企业建站, 企業建站, 在線商城, 營銷網站, 網站推廣, 網站營銷, 排名推廣, 產品推廣, 主機維護, 公司兼職, 網站SEO, joomla seo, wordpress seo, joomla 網站推廣, opencart 網站推廣, prestashop 網站推廣, wordpress 網站推廣, magento 網站推廣, joomla 網站排名, prestashop 網站排名, wordpress 網站排名, opencart 網站排名, inhandnetworks, InHand Networks Global Leader in Industrial IoT, Global Leader in Industrial IoT, android-computer, iot, industrial iot, industrial internet of things, m2m, industrial m2m, m2m communication, remote communication, wireless m2m, remote connectivity, remote access, m2m connectivity, iiot, industrial networking, industrial wireless, m2m iot, smart vending, touchscreen vending, cloud-vms, telemeter, vending telemetry, cashless vending, light industrial, commercial, distribution automation, distribution power line monitoring, fault location, fault detection, da monitoring, smart grid, transformer monitoring, intelligent substation, goose-messaging-, remotemachine monitoring, remote secure networks, remote secure networking, secure web based scada, remote diagnostics, remote maintenance, plc-programming, intelligent traffic enforcement, ct scanners remote monitoring, mri remote monitoring, healthcare, wireless atm, branch networking, retail, digital signage, wastewater treatment, remote monitoring, industrial automation, automation, industrial transport, inhand, inhand network, inhand networks, InHand Networks - Global Leader in Industrial IoT, Global Leader in Industrial IoT Industrial IoT, IIoT, Industrial IoT Manufacturer, Industrial IoT Connectivity, Industrial IoT Products, Industrial IoT Solutions, Industrial IoT Products, industrial IoT Gateway, industrial IoT router, M2M IoT gateway, M2M IoT router, industrial router, Industrial IoT Router/Gateway, industrial IoT Gateway, industrial LTE router, Industrial VPN router, Dual SIM M2M router, Entry level Industrial Router, Cost effective, 3G 4G LTE, WiFi, VPN industrial router for commercial and industrial and M2M/IoT applications, Industrial 3G Router, Industrial 3g router, UMTS router, VPN routerIndustrial 3g router, UMTS router, VPN router, DIN-Rail router, cellular router, Industrial IoT Gateway, Industrial IoT Gateway, M2M gateway, VPN gateway, remote PLC programming, Industrial Cellular Modem, Cellular modem, data terminal unit, 3g modem, Industrial 3G Cellular Modem, 3g modem, industrial cellular modem3g modem, industrial cellular modem, industrial wireless modem, data terminal unit, Android Industrial Computer, Android Industrial Computer, Vending PC, Vending Telemetry, Vending Telemeter, Android Industrial Computer, Android Industrial Computer, Vending PC, Vending Telemetry, Vending Telemeter, Touchscreen & Vending PC, Vending Touchscreen, Vending Telemeter, Vending Telemetry, Vending Computer, Industrial LTE Router, industrial IoT Gateway, industrial LTE router, Industrial VPN router, Dual SIM M2M router, Industrial IoT Router/Gateway, industrial IoT Gateway, industrial LTE router, Industrial VPN router, Dual SIM M2M router, Industrial LTE Router, Industrial LTE router, industrial 4G/3G router, router industrial, cost-effective industrial LTE router, Industrial LTE Router, Industrial LTE router, industrial IoT router, router industrial, cost-effective M2M router, M2M LTE router, Industrial 3G Router , Industrial 3g router, industrial wireless router, VPN router, DIN-Rail router, cellular router, Industrial 3G Router , Industrial 3g router, industrial wireless router, VPN router, DIN-Rail router, cellular router, Distribution Power Line Monitoring System, Overhead Line Monitoring, Distribution Power Line Monitoring, Fault detection & location, Grid Analytics System, Remote Machine Monitoring & Maintenance System, IoT Remote Monitoring, Prognostics and Health Management, Remote connectivity, Remote Maintenance, Smart Vending, smart vending, InHandGo, retrofit, touchscreen vending, cashless vending, cloud VMS, Transformer Monitoring, Transformer Monitoring, substation monitoring, grid LTE router, wireless communication, smart grid, Remote Automation, Remote Automation, Secure remote networks, web SCADA, Remote Diagnostics, Remote PLC programming, Intelligent Traffic Enforcement, Intelligent Traffic Enforcement, wireless networking, cellular router, Wireless ATM Solution, Wireless ATM, ATM Remote Diagnostic, prestashop 多语商城, opencart 外贸商城, 网页设计, 网站建设, 企业建站, 商城网站, 集团网站, 海外网站, 营销网站, 网站推广, 华人网站建设, 华人网站维护, 华人网络兼职, china webdesign, webdesign, seo, joomla web design, 香港網頁設計, 網站建設, 企業建站, 商城網站, 集團網站, 海外網站, 營銷網站, 網站推廣, web design, joomla webdesign, wordpress webdesign, opencart webdesign, magento webdesign, durpal webdesign, vtiger crm, adempiere erp, compiere erp, hosting, domains, vps, email marketing, joomla 网页设计, wordpress 建站, magento 大型外贸商城, durpal 门户网站, seo 网站推广, 网站自然排名, joomla 網站製作, wordpress 定制開發, opencart 維護修改, prestashop 模板修改, magento 培訓實施, durpal 定制修改, seo 營銷推廣, 外鏈收錄排位, joomla, wordpress, opencart, prestashop, magento, durpal, zencart, crm, erp, edm, marketing, joomla template, wordpress themes, magento themes, opencart themes, prestashop themes, 崀山, 崀山科技, 崀山科技全球服务中心, LangShan Technology Global Service Center, LangShan Technology, langshantech, LangShan, china webdesign, 網頁製作, 網頁設計, 企业建站, 企業建站, 在線商城, 營銷網站, 網站推廣, 網站營銷, 排名推廣, 產品推廣, 主機維護, 公司兼職, 網站SEO, joomla seo, wordpress seo, joomla 網站推廣, opencart 網站推廣, prestashop 網站推廣, wordpress 網站推廣, magento 網站推廣, joomla 網站排名, prestashop 網站排名, wordpress 網站排名, opencart 網站排名, prestashop 多语商城, opencart 外贸商城, 网页设计, 网站建设, 企业建站, 商城网站, 集团网站, 海外网站, 营销网站, 网站推广, 华人网站建设, 华人网站维护, 华人网络兼职, china webdesign, webdesign, seo, joomla web design, 香港網頁設計, 網站建設, 企業建站, 商城網站, 集團網站, 海外網站, 營銷網站, 網站推廣, web design, joomla webdesign, wordpress webdesign, opencart webdesign, magento webdesign, durpal webdesign, vtiger crm, adempiere erp, compiere erp, hosting, domains, vps, email marketing, joomla 网页设计, wordpress 建站, magento 大型外贸商城, durpal 门户网站, seo 网站推广, 网站自然排名, joomla 網站製作, wordpress 定制開發, opencart 維護修改, prestashop 模板修改, magento 培訓實施, durpal 定制修改, seo 營銷推廣, 外鏈收錄排位, joomla, wordpress, opencart, prestashop, magento, durpal, zencart, crm, erp, edm, marketing, joomla template, wordpress themes, magento themes, opencart themes, prestashop themes, 崀山, 崀山科技, 崀山科技全球服务中心, LangShan Technology Global Service Center, LangShan Technology, oowebdesign, LangShan, china webdesign, 網頁製作, 網頁設計, 企业建站, 企業建站, 在線商城, 營銷網站, 網站推廣, 網站營銷, 排名推廣, 產品推廣, 主機維護, 公司兼職, 網站SEO, joomla seo, wordpress seo, joomla 網站推廣, opencart 網站推廣, prestashop 網站推廣, wordpress 網站推廣, magento 網站推廣, joomla 網站排名, prestashop 網站排名, wordpress 網站排名, opencart 網站排名, inhandnetworks, InHand Networks Global Leader in Industrial IoT, Global Leader in Industrial IoT, android-computer, iot, industrial iot, industrial internet of things, m2m, industrial m2m, m2m communication, remote communication, wireless m2m, remote connectivity, remote access, m2m connectivity, iiot, industrial networking, industrial wireless, m2m iot, smart vending, touchscreen vending, cloud-vms, telemeter, vending telemetry, cashless vending, light industrial, commercial, distribution automation, distribution power line monitoring, fault location, fault detection, da monitoring, smart grid, transformer monitoring, intelligent substation, goose-messaging-, remotemachine monitoring, remote secure networks, remote secure networking, secure web based scada, remote diagnostics, remote maintenance, plc-programming, intelligent traffic enforcement, ct scanners remote monitoring, mri remote monitoring, healthcare, wireless atm, branch networking, retail, digital signage, wastewater treatment, remote monitoring, industrial automation, automation, industrial transport, inhand, inhand network, inhand networks, InHand Networks - Global Leader in Industrial IoT, Global Leader in Industrial IoT