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2016年6月7日星期二

Why the Consumer UAV So Popular?

The history of UAV can be traced back to last century. But recently, with the release of consumer UAV, it is not merely for the upper-class but becomes an affordable "toy" for all the public. The popularity of UAV should be attributed to the joy and operability. When you turn on the aerial photograph mode, you could observe the surroundings through FPV (First Person View), which is a totally new shooting perspective and full of fun. Besides, it is easy to operate and control, especially for the green-hand.
The design of multi-rotor, flying with four or more rotors, is massively adapted into the consumer UAVs, which is the simplest mechanical structure among the three types of aircrafts andis motivated by the motor,and relatively the UAV battery is light weight and long flight time. It has the obvious advantages of simple machinery, being able of taking off and landing vertically. However, the multi-rotor has the comparatively short flight time and less payload.

The quadcopters and multi-rotor UAVS gain the most market, which are lightweight, agile, safe, easy to operate, able to hover in the air and other strengths. The multi-rotor UAVs gradually turned the toy plane into the pragmatic aircraft for aerial photograph. You could see the synchronous picture as long as you connect the UAV with Wifi. Similarly, in the actual flight, you could watch the UAV or the screen. Apart from aerial photograph, the UAVs have been applied in express delivery, disaster relief, patrol, providing network and other fields.

What is the difference between consumer UAV and professional UAV for aerial photograph?


The consumer UAVs commonly have the affordable prices for ordinary people, varying from one hundred to thousand dollars, light weight and operability. For most consumers, the main purpose of consumer UAVs is entertainment. Conversely, to operate the aerial photograph UAVs, people should experience the professional training. Another advantage, especially important for the green hand, for UAVs is that it does not need to assemble by own, which means that we could fly as soon as we buy it.
The aerial photograph is the main function of the consumer UAVs, but it still has great disparity with the professional aerial photograph UAV from the image quality, flight duration, the ability of withstanding bad weather, high-speed of image transmission and other perspective. The professional one could load with professional digital camera, whose image is more clear and has higher pixel. Naturally, the professional one has higher price, from ten thousand to hundred thousand dollars.

In a word, due to the easiness of operate and no need to assemble, the green-hand can control it skillfully after a few practices. And it has a lot of designs of one-touch operation, such as return and land automatically. Also, the price is much affordable for ordinary players.


Why we cannot buy the cheap drone?


It is undoubted that all the UAV fans want to have an own UAV, but the equipment of well-known and mega brand has the price of thousands dollar, which is not affordable for most of players. Therefore, some people will buy the cheaper UAVs, maybe tens of dollars. But is it wise to buy such drones?

To answer such question, the first thing we should clarify is whether we need a better fly experience. The experience depends on multiple factors, and the safety is the most crucial thing. We should choose those qualified products to guarantee safety; however, the cheap UAVs commonly do not have the function GPS stability, resulting in the difficulty in controlling and the instability. When the emergency happens, it cannot hover in time and is likely to cause danger. At the same time, the cheaper UAVs do not have stable holder, which can rotate, so that it could not shoot the steady images. Furthermore, the difficulty for fly improves without the function of image transmission. (It is impossible to see the picture.) Consequently, choosing a safe and stable drone, no matter the price, is wise for all the UAV fans.


Is the multi-rotor UAV easy to operate?


Take Xiro explorer, a quadcopter UAV, as an example; it is mainly operated by the rocker. The left rocker can control the height and direction (up or down and rotate). The right one can control the movement of four directions (forward, backward, left and right). The position can be set manually. The rocker of remote-controller is more sensitive, so we should carefully and slightly operate it to fly stably.

Xiro explorer have the function of GPS emergency hover and making a return. After you choose the landing position, only by pressing one button that it can land steadily. Hint: the landing position should be chosen cautiously. On one thing, do not land on the crowd in case of causing injuries; on the other thing, choose the spacious and smooth place to avoid the damage of drones. In a nutshell, it is easy to operate, but to shoot high-quality image, more time given to practice is needed.


What should be noticed to fly UAVs?


Though it is easy to control and operate, we should know more about the safety common sense, and certainly, the basic operation process. To avoid the air crash due to the power-cut, 14.8V Lipo Battery from Gens ACE is strongly recommended, for it has long flight time, easy to assemble and stability. Additionally, setting the prohibited fly areas is required. The flyers should pay attention to the rules and laws, apart from enjoy the drones.

2016年6月2日星期四

Contrast to select different of RC car power

According to the motivation source of RC car, which is divided into two kinds. One for motor drive electric RC car, another for two-stroke air-cooled engine driven oil move RC car, and according to the fuel oil motor car, divided into gasoline car and methanol. We will make simple analysis according to the basic configuration and the advantages and disadvantages of each characteristics of the dynamic, to help beginners have a more intuitive understanding of the different of RC car power.

The first kind:Electric remote control model (Electric Powered), referred to as EP.

Electric RC car

Electric RC cars use lipo battery as power, output power to the motor, through the gear, the power transmission to wheels, a driving force for vehicles.
 
Basic configurations of electric RC car including as follow: the RC car, charger, controller and Gens ace 5000mah lipo battery.
 
Electric RC model car is the best choice for beginners, has the following characteristics:
1. The electric car has small inertia, easy to grasp, when you go on the road, beginners don't need too much set-up like a gasoline.

2. The electric car do well on linear output, the weight is lighter than gasoline, so the traction manipulation is flexible, corner speed higher than that of gasoline, if is the venue for many corners, short straights, laps of the electric car is faster than a gasoline, and the electric car start up speed, speed curve, linear speed is not lose oil.
3. The car don't have to repeat purchases, fuel investment, only need to install the RC car battery can be on the road, being recharged reuse, environmental protection free from contamination.
4. The electric car is not a nuisance, quiet street, don't be afraid to fry them anymore. This is the most significant characteristics of RC car batteries lipo

The second: GP remote control model car(Gas - powered) , hereinafter referred to as GP, block is divided into gasoline car and methanol.


Gasoline RC model car

The structure of GP RC Car is very close to the real car, gasoline vehicles using the two stroke gasoline engine.
The basic configuration of GP RC Car are: car, controller, gasoline, oil, oil pot.

GP RC Car is a beginner's second choice, has the following features:

1. GP RC car has simple structure, high strength of the frame, the damage rate is low, stable performance and easy maintenance.

2. The engine is simpler to set-up, the set range of oil needle is small, for beginners ,you don't have to often emphasis on set-up the vehicle.

Most engines of GP RC car are installed on the central of frame, the vehicle's weight is located in the central after partial, and that are the same as most of the super sports car in the world's center of gravity location , so the manipulation of the GP car is flexible , speed is fast, walking stable.

In the petrol car ratio majority with 1:8 and 1:5. Itself weight and volume is big, the request to walk on the road is no demanding as small proportion car so , what's more, four-wheel can independently suspension and gasoline vehicles, large hydraulic shock absorber, makes the strong ability of block pavement through.

Gasoline engine of a GP remote control car can use avalanche to describe, listened to the blood boiling, frying street tool. Here also remind all beginners must go to special field or unmanned broad areas to play.

Methanol RC model car

Methanol RC model car also use two-stroke air-cooled engine.

Basic configuration of methanol RC model car including: car, controller, synthetic fuels, igniter.

Methanol RC model car is the third choice for beginners, has the following characteristics:

Compared with gasoline, methanol car can do a smaller engine , as a direct result of vehicle size can be smaller. Gasoline vehicle general size for 1:8 and 1:5, and the size of the methanol car can do 1:18 size. Due to the weight an d volume of methanol car are smaller than gasoline vehicles, and higher speed, so the methanol car than gasoline vehicles speed is fast, more violence. Compared to the tram, methanol has more momentum and simulation engine.

Because the oil needle set-up is more complicated, methanol is not only expensive, but also inconvenient to buy and methanol engine life without long life as petrol cars and trams so the recommended novice firstly is trolley and gasoline vehicles, to have certain experience in RC model before thinking of methanol car.
 
Summary: By comparing, I believe you can have a further understanding to choose RC car power, hope everybody can have fun on RC car!
Source: http://www.genstattu.com/blog/contrast-to-select-different-of-rc-car-power/

2016年1月28日星期四

Lipo Battery Balance Connectors Introduction

What is a balance connector?

A balance connector is nothing more than a breakout connector for accessing all the individual cells contained in a lipo. This allows for the monitoring and manipulation of each cell individually.

Why are balance connectors needed?


Like everything in the world, no two things are exactly the same, and batteries are no different. When multiple batteries, or cells, are assembled into packs, those different differences can lead to imbalances within the pack. In most cases, like NiXX cells, this is not a problem due to the chemistry of the cells. But when using lithium based cells, these imbalances can damage the cells and in some extreme cases even result in a fire.

The age of lipos

As of right now there are single lipos ranging from gens ace lipo 1s 80mAh to 12s 6000mAh lipo, with C-ratings ranging from 15C to 65C. These lipos power a huge range of models from micro helicopters to 33% planes. What used to be a simple answer, "Use Deans Ultra Plugs", has now become a little more difficult to answer.

LiPo Battery Connectors and Types

Bullet Connectors

Bullet connectors are many times the stock connector attached to LiPo batteries, especially larger LiPo batteries. These connectors can handle a lot of current but have the tendency to pull apart during hard landings or through rough usage. If you plan to leave the bullet connectors that came with the LiPo battery on, be sure to purchase the correct size to match. For example, this 5000 mAh 3S 25C LiPo from Gens Ace lipo comes stock with a 4mm bullet connector.


Deans T-connectors


This is the original t-plug connector. This was the first heavy duty plug that I felt comfortable using on everything. These were purpose made for the RC industry. You can find the authentic W.S. Deans Ultra Plug and these days there are clones of this design. I have found many of the clones plastic will melt if you get your soldering iron too hot when attaching your wires. The main issue with this plug is that they are a little tricky to attach wires to since they are simply flat. If your wires are very thick (larger than 12awg) then they are really tricky. They will also pop when you connect them if you are using a big lipo. This doesn't bother me personally but some folks find it unnerving.

Deans Connector Battery Recommendation

This is the 7.4V lipo battery 5000mah With Deans Connector. This battery is perfect for any Airsoft soldier who is looking to add more power to their weapon! You can never go wrong when you choose a Li-Poly battery, not only do they last long, and they hold a stronger charge but they also come with outstanding quality. So whether you are getting a replacement battery or an extra battery for your favorite Airsoft gun the 7.4V 1800mAh Lipo Battery With Deans Connector is the perfect choice for you! 

XT60

These are rated for 60 amps. I first starting seeing XT60s on Gens Ace lipos. This seemed to be their alternative to t-plugs. These consist of 3.5 mm bullets that are shrouded with plastic. There is a male and female side. The great part about this plug is that the side you solder to is cupped. It will hold your solder and your wire a lot easier than a Deans plug. The other advantage is that a lot of batteries ship with this connector. That means all you have to do is create some corresponding connectors for your charger/RC vehicle and you are in business. Since I was already Dean based I never migrated to this style of connector. Disconnecting them can also be a little tricky. I will say that if I was to change to a new connector this would be the one. Most of my quads use this type of connect. Most I have cut and switched to Deans but I have also made adapters.

EC3

The connectors on this plug are fully shielded. Connecting the EC3 isn't confusing and once connected they stay connected. These are also very easy to solder together and no heat shrink is required. My reason for using them might sound silly. Separating them is a bit of a pain. When you do separate rate them the suction between the two makes a POP sound. I'm not sure why I find this off-putting. Maybe I feel like I'm straining the solder since they are so tough to separate. I have never used this type of connector for very long. Ultimately I cut them and change over to Deans.

What is the best battery brand?


Gens Ace batteries are one of the top LiPo battery manufacturers around in terms of performance and quality in general. However if you are are after some professional level batteries I can highly recommend the Gens Ace TATTU series of Lipos. These Gens Ace lipo batteries are abit more expensive that other brands, but they are worth paying abit more for, especially if you are carrying expensive equipment on your drone.