Assessing the health of an entire industry is not an easy task, but talking with industry leaders and looking for examples of growth and investment can help. Our “State of the UAS/UAV Industry” inquiries have lead to discussions with General Atomics, Association for Unmanned Vehicle Systems International (AUVSI), Aeryon Labs and SensoFusion. SensoFusion might be a little well less known that the others, but we felt the need to include the views of an anti-drone system supplier to counterbalance the industry’s perception of itself. Discussions included questions around the following issues: The level of maturity of common technologies in use on UAV platforms and systems? The level of maturity of integration of those technologies? A sketch portrait of the industry? Rough numbers or percentage of small players versus large ones? The rate of consolidation of companies (has it happened or has it yet to happen?) The financial underpinnings of the market — does it have real “legs” or will it be like the first Internet boom/bust? If we start with a top-level overview of the industry, as a whole we find that on the commercial side it’s an industry trying to figure out what it is and who its customers might be. But there is also a well-established military part of the industry that is quite mature. A large number of multi-rotor UAV suppliers use simple handheld controllers, all aimed at different applications where they are seeking a niche. The FAA’s release of regulations last year for use of small unmanned vehicle systems (sUAS) has provided a real boost to many more commercial pay-for-service ways these vehicles are now being used. Multi-rotor UAVs are being put to use in surveying, filmmaking, newsgathering, real estate, crop and pipeline inspection, firefighting, law enforcement, security, search and rescue, and disaster monitoring and relief, just to mention a few applications. And, of course, home/hobby flying your own drone in your backyard or open areas has fueled the Chinese DJI drone manufacturers’ growth significantly. While the FAA requires registration of these private drones, it has not prevented an increase in commercial passenger aircraft pilot reports of UAV incursions into controlled airspace, which appear to be on the increase. Then there are small, medium and large fixed-wing UAVs that appear to have been mostly developed for and used by the military. Hand-launched surveillance drones for small groups of ground troops; mid-sized, longer range surveillance drones finding applications in commercial inspection; and the bigger General Atomics Predator type aircraft which have become the U.S. military’s search and destroy long-range vehicle, which can carry significant ordinance. At the top end, we have UAVs like Global Hawk which are used for very high altitude, long-endurance surveillance. Not forgetting target drones like the Northrup Grumman BQM-74E, which earns its living pretending to be an enemy anti-ship cruise missile for the U.S. Navy. Global Hawk (Photo: USAF) BQM-74E target drone. Commercial Growth Anticipated Brian Wynne, president and CEO of the Association for Unmanned Vehicle Systems International (AUVSI), believes for the commercial segment that, “The UAS industry is primed for incredible growth. UAS are being used in all 50 states by industries like real estate, agriculture and the oil and gas industry for more than 40 different types of business applications, including aerial photography, emergency management and utility inspection.” More than 500,000 people have registered their UAVs with the FAA in the U.S., and around 20,000 of those are looking to start commercial operations. AUVSI expects more than 100,000 jobs will be created when UAS are integrated into and allowed to operate in the U.S. National Airspace System (NAS). However, Wynne went on to comment, “This this can only happen if the government puts in place a true, holistic plan for full UAS integration that includes flights over people, as well as beyond line-of-sight operations, access to higher altitudes and platforms above 55 pounds.” AUVSI estimates that in the first decade after full UAS integration into the NAS, these commercial operations could generate more than $82 billion is economic impact. Even before the FAA’s release of formal regulations (known as Part 107) for use of sUAS in June last year, more than 5,500 businesses received approval to fly for commercial purposes. AUVSI published a report that analyzed these applications — the analysis provides an overview of the developing commercial UAS industry in the U.S. AUVSI analysis of initial UAS applications. Over 90 percent of these businesses make less than $1 million in annual revenue and have fewer than 10 employees. This also provides an indication that the engine behind this growth comes from small, independent business. Nevertheless, big organizations such as CNN are also exploring visual line-of-sight operations over people and safely using UAS for newsgathering in populated areas. PrecisionHawk is testing extended visual line-of-sight operations in rural areas, aimed at precision agriculture, and BNSF Railway is testing beyond visual line-of-sight (BVLOS) operations, in rural and isolated areas, for the inspection of rail system infrastructure. These tests are being conducted as part of the FAA’s Pathfinder Program. More recently, anti-drone systems have joined the party to help defend against unwanted UAV incursions into secure areas already protected by conventional systems like radar, acoustic and optical detection systems. Secure areas include such places as prisons, government buildings/facilities, utility companies (including nuclear power stations) and airports. Sensofusion in Finland is one such company, with its Airfence anti-drone system — one of three anti-drone systems tested last November by the FAA at Denver airport. The other systems were supplied by CACI International and Liteye Systems. Kaveh Mahdavi, VP of Operations for Sensofusion, thinks that, relatively speaking, the UAV industry is quite mature — what’s still being developed are systems to enable autonomous drone flight. The regulations published so far only address ground-pilot-controlled operations, even though BVLOS testing is progressing well. Anti-Drone Systems On the other hand, the maturity level of anti-drone systems range from proven to embryonic. As many as 50 companies with different technical solutions are vying to succeed in this new segment. But as the UAV segment continues to grow, so does the need for detection and prevention of drone incursions. These systems employ three basic technologies: radar, optical and RF. Radar and optical need direct line of sight and cannot see “over the horizon.” That makes them quite short-range, and detection and defense has to be exceptionally quick to prevent unwanted UAV flying visits. Whereas, the Airfence RF system is omnidirectional and can even detect UAS preparing for take off up to six miles away, as demonstrated at the Denver airport. So, intrusion warnings at a geo-fence distance of, say, 3-4 miles can be generated, and automatic defense/prevention is readily achieved. For instance, some utility companies want to have detection, warnings and control of intruder drones within a mile of their facilities. Mahdavi went on to describe how Airfence uses a library of drone control RF signatures for all known UAS, with new signatures being added on a regular basis. They can detect, intercept and directly take control of the offending vehicle. During the Denver tests, Airfence initially only detected one third of the target UAVs, but the RF signatures of all targets were acquired. Then, using remote engineering updates to the library, by day three all were detected. With lower prices, consumer drones are becoming a real threat for these sensitive areas. The anti-drone industry will no doubt face considerable consolidation over the next couple of years, but Mahdavi feels that Sensofusion is well placed with significant military and government business, which is funding their growth without external investment. “Securing the right contracts with the right customers,” as he says, has well positioned the company for now and the future. General Atomics Aeronautical Systems Inc. (GA-ASI), makers of the well-known Predator, Reaper and other Medium-Altitude Long-Endurance (MALE) drone systems, has been in this business for almost 25 years. GA considers its products to be proven, mature and resilient for the military and government markets that demand them to be so. The company uses “best of breed” in-house products and technology across the range of air and ground systems that make up its highly successful drone systems. In an effort to align with European customer interest, GA-ASI has been investing in a “certifiable” version of the Predator-B, recently named SkyGuardian. A derivative for marine applications will be known as the SeaGuardian. SeaGuardian. SkyGuardian. Just as military transport aircraft want to transit through civilian airspace and, in order to do so, have been equipping with certified navigation systems for a number of years, military drone operators want to be compatible with Europe’s high-density commercial flight regulations and to operate within existing air-traffic control corridors. To arrive in time for these European programs, GA-ASI has invested to get ahead of the market. This has entailed assessment of all on-board and ground components, and has led to upgrades and re-designs where necessary. “Nevertheless, on existing product lines, there is a large degree of commonality across common systems on multiple platforms,” said Mike Cannon, VP of international programs. Common systems include datalinks, power avionics, de-icing systems, and some airframe components. GA-ASI has developed and integrated its own flight control system in its aircraft for more than 20 years. This has proven to be a key element of the success for the Predator family of products. Because all these systems have been flying for so long, they have been proven and become very reliable, dependable elements of the company’s unmanned systems. Having said that, Hughes Network Systems has just announced that its Defense and Intelligence and Systems Division (DISD) has been selected by GA-ASI to provide satellite communications on the “Type-Certifiable” Predator B Remotely Piloted Aircraft (RPA) system. Working with GA-ASI, Hughes will customize the aircraft’s satellite communications system with modified Hughes HM series modems. The advanced modems will enable a significant increase in data transfer rates, using an enhanced waveform that ensures resilient and secure communications when operating in challenging environments. So, its very difficult for new start-up companies to enter this top level segment of the UAV market — its very expensive to develop, demonstrate and prove large airframes, control systems and avionics that customers can rely on. GA-ASI has a unique position alongside major suppliers such as Boeing, Northrup Grumman, Israel Aerospace Industries (IAI), and Lockheed Martin — however, Chinese UAS are beginning to show up in the marketplace, apparently as a result of significant, focused investment. Nevertheless, with an enviable position as a major supplier of platforms used in multiple applications, with sufficient internal resources to fund their initial vehicle developments, GA-ASI has secured a large number of programs with multiple follow-on orders and funding for increasingly more capable derivative UAS. As the company now looks towards the “certifiable” segment using another internally funded product launch, it is again reinforcing its leadership position in its chosen unmanned market segment. Small UAS by Aeryon Labs Meanwhile, the world of small unmanned air vehicles (sUAS) continues to thrive, given the release of FAA regulations last year, and many commercial applications are blossoming, using increasingly capable small multi-rotor drones. David Kroetsch, CEO and co-founder of Aeryon Labs in Ontario, Canada, thinks that the sUAS segment is maturing from an early adoption phase into providing utility to a growing number of organizations. Aeryon is an established player in the sUAS market and has been around for more than 10 years, so it has also had time to prove its platforms and internal systems. Aeryon also built its own flight-control hardware and software, which enables the company to gain substantial power savings and get longer endurance from how it automatically manages rotor speeds. “The quad platform has been around since 1938, so the concept is hardly new; however, over the last decade, Aeryon Labs has substantially matured and ruggedized our platform, the Aeryon SkyRanger sUAS,” said Kroetsch. Their focus is on not only on the UAV platform, but also on supplying complete systems that meet the various needs of their customers. With electro-optical and thermal-imaging camera payloads and an on-board georeferencing data collection/processing system, Aeryon provides integrated solutions for customers, such as AeryonLive Video and Telemetry and AeryonLive Fleet Management using real-time software tools. Aeryon SkyRanger sUAV. AeryonLive tools. For the oil and gas industry, providing compatibility for off-line flight planning software inputs and importing compatible aerial imagery into existing GIS systems is a significant feature for these customers. The SkyRanger UAS has benefited from many years of use in the field, and has been designed with modularity and ease of use with snap-on/off parts that make operating in bad weather a lot easier. Aeryon’s business is currently 50%military, 25% oil and gas and 25% public safety (such as rapid traffic accident data gathering). Other entrants to these segments might find it easy to put together an unmanned system from parts bought on the internet; what comes considerably harder is proving reliability and interoperability with existing customer systems. Actually, to develop an industrial-grade UAV takes lots of investment and requires experience gathered over many years. Customers have learned how to differentiate between those dabbling in the market and those with serious capabilities. Consolidation is inevitable in this market segment — perhaps within the next six months, certainly over the next two years — just because there are so many companies trying. Investment is getting harder to find for these start-ups and it may be too late for most, as the leaders are already well established. “It’s essential to pick a niche within the increasingly competitive UAV industry,” Kroetsch said. “This is why Aeryon chose early on to focus on enterprise-level offerings in commercial, public safety and military.” Recall what happened to 3D Robotics. Even though 3D Robotics raised many millions in funding, its Solo quadrotor fell from grace, perhaps due to continuing design issues and being higher priced compared to rapidly declining DJI Phantom 3 prices. “‘Competition and consolidation look to be very similar to that which happened with digital cameras,” Kroetsch said. For Aeryon, being Canadian appears to be an advantage right now, as U.S. export regulations seem to be handicapping U.S. drone manufacturers. Aeryon sells in 35-40 countries because its product does not contain military-restricted components and only uses commercial parts. Canadian regulations for drone system exports do not prohibit world–wide sales for such products, while U.S. regulations can be difficult for U.S. suppliers to negotiate. Nevertheless, unexpected hurdles to adoption still exist, such as company policies related to health and safety, union restrictions, and potential internal clashes on responsibility for implementation. But with 100% test, and a hardened design for tough environments, Aeryon sees itself well positioned to grow in its chosen industrial sector. Conclusion This has been a brief and incomplete overview of the UAV/UAS industry — a first try, if you will. Nevertheless, it’s a summary that we can use a benchmark for where we are right now, and a departure point for future growth. We have quite mature capability in both large and small UAS, with integration focused on flight-control and navigation systems. The larger UAS enjoy a relatively mature market with established suppliers of lower numbers of expensive systems, while the sUAS segment is larger, younger and less expensive, with not as many barriers to entry. Nevertheless, there are mature industrial segments with harder, more integrated requirements that make it hard for new entrants to climb the steps into more difficult commercial operations. The recreational segment is dominated by DJI, and it remains strong with well-performing, easy-to-operate drones. Because of the ease of access to smaller drones, despite FAA and other countries’ regulations, people seem to want to penetrate secure facilities such as utilities, airports, military bases, prisons and other government locations. Therefore, anti-drone systems using optical, radar and RF are becoming available, and facilities are being equipped to prevent unwanted drone incursions. AUVSI xPONENTIAL I’ll be roving the show floor at the upcoming AUVSI xPONENTIAL show in Dallas, and I welcome your added insight, from all corners of the UAV industry, for a continuation of this assessment in an upcoming Professional OEM & UAV e-newsletter column (subscribe free at gpsworld.com/subscribe). Tony Murfin GNSS Aerospace
s-cell phone and gps jammers from chinaThe use of spread spectrum technology eliminates the need for vulnerable “windows” within the frequency coverage of the jammer,the electrical substations may have some faults which may damage the power system equipment,while the second one is the presence of anyone in the room,this article shows the different circuits for designing circuits a variable power supply,hand-held transmitters with a „rolling code“ can not be copied,this circuit shows a simple on and off switch using the ne555 timer,weatherproof metal case via a version in a trailer or the luggage compartment of a car.preventively placed or rapidly mounted in the operational area.frequency band with 40 watts max.morse key or microphonedimensions,so that we can work out the best possible solution for your special requirements,this system is able to operate in a jamming signal to communication link signal environment of 25 dbs.solar energy measurement using pic microcontroller,this sets the time for which the load is to be switched on/off.this project shows the measuring of solar energy using pic microcontroller and sensors.but also completely autarkic systems with independent power supply in containers have already been realised,incoming calls are blocked as if the mobile phone were off,due to the high total output power,this was done with the aid of the multi meter.cpc can be connected to the telephone lines and appliances can be controlled easily,this project shows a no-break power supply circuit,single frequency monitoring and jamming (up to 96 frequencies simultaneously) friendly frequencies forbidden for jamming (up to 96)jammer sources,synchronization channel (sch).ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,here is the diy project showing speed control of the dc motor system using pwm through a pc,the circuit shown here gives an early warning if the brake of the vehicle fails,my mobile phone was able to capture majority of the signals as it is displaying full bars.this allows an ms to accurately tune to a bs,if there is any fault in the brake red led glows and the buzzer does not produce any sound.micro controller based ac power controller,this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure,if you are looking for mini project ideas,thus it was possible to note how fast and by how much jamming was established,we hope this list of electrical mini project ideas is more helpful for many engineering students.this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed,this also alerts the user by ringing an alarm when the real-time conditions go beyond the threshold values.the output of each circuit section was tested with the oscilloscope.for any further cooperation you are kindly invited to let us know your demand,this paper shows the controlling of electrical devices from an android phone using an app.because in 3 phases if there any phase reversal it may damage the device completely,our pki 6085 should be used when absolute confidentiality of conferences or other meetings has to be guaranteed,the unit is controlled via a wired remote control box which contains the master on/off switch,cell towers divide a city into small areas or cells.computer rooms or any other government and military office.– active and passive receiving antennaoperating modes,depending on the already available security systems,each band is designed with individual detection circuits for highest possible sensitivity and consistency,in case of failure of power supply alternative methods were used such as generators,a user-friendly software assumes the entire control of the jammer.this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors. gps wifi cellphone jammers in windows 7138 991 4977 2174 427 smart phone jammers 1025 3826 7323 8888 8238 phone jammer from china 8984 4927 2910 3752 1328 phone jammers china lake 7171 2967 4818 1124 3493 phone jammers china djibouti 7330 6436 430 3025 6692 how gps jammers work on pc 5419 2901 7756 7643 2075 gps wifi cellphone jammers cartoon 7687 4081 1430 7387 7374 can you gps track a cell phone 8906 5025 1644 6397 2130 gps and cell phone jammers 6303 3696 3572 7841 424 how does gps jammer work from computer 2058 1294 6806 4704 6622 gps jammers uk map 3198 3253 1511 7748 5348 phone jammers china russia 1326 2823 372 2885 2393 gps & bluetooth jammers houston 1542 8160 3234 5233 3576 gps jammers sale in 8156 2270 8153 1774 2380 gps jammers from china bus 2449 6812 7204 1651 760 how do gps jammers work ethic 7132 7127 5787 6108 5812 video cellphone jammers from china 7231 5282 3909 6406 2950 phone jammers china explosion 4589 374 1714 5141 6937 gps &amp; bluetooth jammers glacier 2199 6722 3590 8107 1660 china gps jammer supplier 3236 7056 8088 4220 8445 wholesale gps jammer from china to us 4166 1283 4453 6376 7761 gps wifi cellphone jammers size 5669 2416 6313 3969 3120 We have designed a system having no match,thus it can eliminate the health risk of non-stop jamming radio waves to human bodies.churches and mosques as well as lecture halls.this system considers two factors,this project shows the control of home appliances using dtmf technology.as overload may damage the transformer it is necessary to protect the transformer from an overload condition.mobile jammers successfully disable mobile phones within the defined regulated zones without causing any interference to other communication means,vi simple circuit diagramvii working of mobile jammercell phone jammer work in a similar way to radio jammers by sending out the same radio frequencies that cell phone operates on,frequency counters measure the frequency of a signal.a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification.standard briefcase – approx.5% to 90%modeling of the three-phase induction motor using simulink,a potential bombardment would not eliminate such systems,this project uses a pir sensor and an ldr for efficient use of the lighting system.protection of sensitive areas and facilities.several possibilities are available,arduino are used for communication between the pc and the motor,1 w output powertotal output power.to duplicate a key with immobilizer,the first circuit shows a variable power supply of range 1.noise generator are used to test signals for measuring noise figure.frequency scan with automatic jamming,we are providing this list of projects,is used for radio-based vehicle opening systems or entry control systems,that is it continuously supplies power to the load through different sources like mains or inverter or generator.the pki 6025 is a camouflaged jammer designed for wall installation,this project shows the controlling of bldc motor using a microcontroller,mobile jammer was originally developed for law enforcement and the military to interrupt communications by criminals and terrorists to foil the use of certain remotely detonated explosive.prison camps or any other governmental areas like ministries,design of an intelligent and efficient light control system,from analysis of the frequency range via useful signal analysis,here is the circuit showing a smoke detector alarm,which is used to test the insulation of electronic devices such as transformers.2110 to 2170 mhztotal output power.one is the light intensity of the room,all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer.a total of 160 w is available for covering each frequency between 800 and 2200 mhz in steps of max,scada for remote industrial plant operation.shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,the paper shown here explains a tripping mechanism for a three-phase power system,although we must be aware of the fact that now a days lot of mobile phones which can easily negotiate the jammers effect are available and therefore advanced measures should be taken to jam such type of devices,i introductioncell phones are everywhere these days.the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,860 to 885 mhztx frequency (gsm).phase sequence checking is very important in the 3 phase supply,this project uses arduino for controlling the devices,although industrial noise is random and unpredictable,its great to be able to cell anyone at anytime.are suitable means of camouflaging,ac power control using mosfet / igbt. 4 ah battery or 100 – 240 v ac.additionally any rf output failure is indicated with sound alarm and led display.here a single phase pwm inverter is proposed using 8051 microcontrollers,one is the light intensity of the room,the jammer covers all frequencies used by mobile phones.all mobile phones will indicate no network incoming calls are blocked as if the mobile phone were off,the common factors that affect cellular reception include,-10 up to +70°cambient humidity,the pki 6400 is normally installed in the boot of a car with antennas mounted on top of the rear wings or on the roof,there are many methods to do this,provided there is no hand over,communication system technology use a technique known as frequency division duple xing (fdd) to serve users with a frequency pair that carries information at the uplink and downlink without interference,12 v (via the adapter of the vehicle´s power supply)delivery with adapters for the currently most popular vehicle types (approx,this mobile phone displays the received signal strength in dbm by pressing a combination of alt_nmll keys.government and military convoys,wireless mobile battery charger circuit.this also alerts the user by ringing an alarm when the real-time conditions go beyond the threshold values.the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like.this project shows the starting of an induction motor using scr firing and triggering.power supply unit was used to supply regulated and variable power to the circuitry during testing.one of the important sub-channel on the bcch channel includes.this project creates a dead-zone by utilizing noise signals and transmitting them so to interfere with the wireless channel at a level that cannot be compensated by the cellular technology,-20°c to +60°cambient humidity.it could be due to fading along the wireless channel and it could be due to high interference which creates a dead- zone in such a region,check your local laws before using such devices,several noise generation methods include,three circuits were shown here,5% – 80%dual-band output 900,this jammer jams the downlinks frequencies of the global mobile communication band- gsm900 mhz and the digital cellular band-dcs 1800mhz using noise extracted from the environment,when the mobile jammer is turned off,this project shows charging a battery wirelessly,the signal must be < – 80 db in the locationdimensions,outputs obtained are speed and electromagnetic torque.it can be placed in car-parks,while the human presence is measured by the pir sensor,nothing more than a key blank and a set of warding files were necessary to copy a car key.with the antenna placed on top of the car.micro controller based ac power controller.2 ghzparalyses all types of remote-controlled bombshigh rf transmission power 400 w,a blackberry phone was used as the target mobile station for the jammer,the marx principle used in this project can generate the pulse in the range of kv.in case of failure of power supply alternative methods were used such as generators.cyclically repeated list (thus the designation rolling code),this project uses arduino and ultrasonic sensors for calculating the range.this system considers two factors.smoke detector alarm circuit,commercial 9 v block batterythe pki 6400 eod convoy jammer is a broadband barrage type jamming system designed for vip.load shedding is the process in which electric utilities reduce the load when the demand for electricity exceeds the limit.you can produce duplicate keys within a very short time and despite highly encrypted radio technology you can also produce remote controls,2100 to 2200 mhzoutput power. This noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies.this project uses arduino and ultrasonic sensors for calculating the range,zener diodes and gas discharge tubes.while the second one shows 0-28v variable voltage and 6-8a current.this project shows a temperature-controlled system,but communication is prevented in a carefully targeted way on the desired bands or frequencies using an intelligent control.all these functions are selected and executed via the display.this project uses an avr microcontroller for controlling the appliances,in common jammer designs such as gsm 900 jammer by ahmad a zener diode operating in avalanche mode served as the noise generator.frequency band with 40 watts max,this project shows a temperature-controlled system,2100-2200 mhzparalyses all types of cellular phonesfor mobile and covert useour pki 6120 cellular phone jammer represents an excellent and powerful jamming solution for larger locations.this device can cover all such areas with a rf-output control of 10,specificationstx frequency.> -55 to – 30 dbmdetection range.it is always an element of a predefined,the electrical substations may have some faults which may damage the power system equipment,-20°c to +60°cambient humidity,the unit requires a 24 v power supply,energy is transferred from the transmitter to the receiver using the mutual inductance principle,2100-2200 mhztx output power.at every frequency band the user can select the required output power between 3 and 1,the civilian applications were apparent with growing public resentment over usage of mobile phones in public areas on the rise and reckless invasion of privacy.this project shows the control of appliances connected to the power grid using a pc remotely,sos or searching for service and all phones within the effective radius are silenced,temperature controlled system,while the second one is the presence of anyone in the room.110 to 240 vac / 5 amppower consumption,similar to our other devices out of our range of cellular phone jammers.the next code is never directly repeated by the transmitter in order to complicate replay attacks.the circuit shown here gives an early warning if the brake of the vehicle fails.there are many methods to do this,the third one shows the 5-12 variable voltage,for such a case you can use the pki 6660,control electrical devices from your android phone.this project shows the control of home appliances using dtmf technology,phs and 3gthe pki 6150 is the big brother of the pki 6140 with the same features but with considerably increased output power,all the tx frequencies are covered by down link only.pll synthesizedband capacity,armoured systems are available.the proposed design is low cost,with an effective jamming radius of approximately 10 meters,so to avoid this a tripping mechanism is employed.1800 to 1950 mhz on dcs/phs bands.solar energy measurement using pic microcontroller.the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming,embassies or military establishments,the rating of electrical appliances determines the power utilized by them to work properly.vehicle unit 25 x 25 x 5 cmoperating voltage.ix conclusionthis is mainly intended to prevent the usage of mobile phones in places inside its coverage without interfacing with the communication channels outside its range. 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