OVERVIEW: quadrocopter Walkera QR X350 Pro - open source analogue Phantom
Devices / / December 19, 2019
At the moment, the market is represented by several types of flying machines mnogovintovyh (kvadro-, gekso- and oktokoptery), as well as a number of other, less popular designs. Each of them has its own characteristics and advantages.
Among them flying machines stand out high-speed racing machines and machines for shooting photos or videos. Additionally, there is a separation of the bearing structure overall dimensions: 250 to 1500 mm diagonal.
The most balanced characteristics are precisely quadrocopter (chetyrohvintovye structure) based on 350-millimeter frame. They are cheap, can provide sufficient duration and distance of the flight and have a high load-carrying capacity, which will raise the necessary equipment for filming and broadcasting. If successful balanced design, many of these machines are able to fly up to half an hour and take quality action camera, and also have a lot of other cool features: following of remote control, and automatic hang-up flight.
Characteristics
It is to this class is Walkera QR X350 Pro. Let us consider its characteristics.
dimensions | 289 × 289 × 289 mm |
The length of the diagonal | 350 mm |
Flight weight | To 1 350 g |
Load capacity, maximum | 200 g |
The maximum time of flight with no load | 25 min |
Flight time at full load | 15 minutes |
The ceiling, the maximum | 1 km |
Ceiling, practical | 600 m |
communication range, the maximum | 2 km |
Speed, maximum | 40 km / h |
motor model | WK-WS-28-008C |
Model of electronic speed controllers | WST-15A (G / R) |
The diameter of the propeller | 556 mm (size - 9 inches) |
The length of the propeller | 232 mm |
Flight controller | DEVO-M (compatible with Arducopter) |
Battery | 5200 mAh lithium polymer, 3S2P (cell 3), 11.1 B, 10 C |
battery weight | 317 g |
battery Sizes | 103 × 33.5 × 41.5 mm |
Output current | 0.8 A |
camera stabilizer | Walkera G-2D, three-axis, electronic and mechanical |
flight planning | From the ground station using Mission Planner |
satellite system | GPS |
Integrated sensors | GPS, compass |
additional sensors | Telemetry, GLONASS |
functions | Return home (user instruction or a loss of remote signal), hang-up, the flight plan |
Copter is very similar to the Phantom 2 and even equipped with exactly the same 9-inch propellers. Brushless motors, are equipped with electronic regulators WST-15A speed. Powerful enough to provide good speed and load capacity, and at the same time balanced, so that the flight was smooth.
As used proprietary control unit controller DEVO-M, which is a major competitive advantage Walkera this model: in addition to a rich selection of ready-branded firmware in the brain can fill in open-sors for controllers Arducopter. Arduino is a modification for unmanned aerial systems, which allows you to customize yourself everything. After the appropriate firmware drone gets a lot of new abilities: among its functions is an autopilot system, return home mode, the mode of stabilization and hovering in the air. In addition, fairly expanding opportunities for fine-tuning the device (this is a very long topic, so like any other time).
Quadrocopter equipped with a powerful battery capacity of 5200mAh (battery practically with the same parameters used in the second version of the popular Phantom) that allows you to stay copter in the air for 25 minutes. Installation for stabilizing the suspension and the chamber, the flight time to 15 minutes.
Packaging and accessories
An important advantage of this model Walkera a large number of modifications and configuration options. The cheapest - the so-called BNF. In this case, the next acquires the pilot body only installed electronics and electrics motors and the transmitter, the remote and the battery must be purchased separately. Another thing - the complete set QR X350 Pro. In this case, the user can get a choice of several panels, suspensions and even a complete camera. In addition, you can buy a lot of accessories.
Choosing panels wide enough: it is 7 Devo, Devo F7, Devo 10. 7 has a first channel for transmitting control commands. II - exactly the same amount, but has a color display, which may be derived from an analog video camera. Devo 10 - the most advanced version with 10 control channels.
DEVO 7 | DEVO 7F | DEVO 10 | |
operating frequency | 2.4Ghz | 2.4Ghz | 2.4Ghz |
Number of channels | 7 | 7 | |
Output power | ≤100mW | ≤100mW | ≤100mW |
current consumption | ≤230mA | ≤230mA | ≤230mA |
Output pulse | 1000-2000mS | 1000-2000mS | 1000-2000mS |
Sensitivity | -105dBm | -105dBm | -105dBm |
Radius control | up to 1 km | up to 1 km | up to 2 km |
Transmission distance video online | — | 500 m - 1 km | — |
There is also two special motorized suspension G2-D for securing action cams: plastic and metal. They are mounted under the belly of the machine and are suitable for GoPro brand and iLook + cells (as compatible various SJCAM, Xiaomi and others, however, need to pay attention to the possibility of the analog output flow). The suspension is connected to the control board is powered from the battery drone, and stabilizes the image using the soft pads and two motors.
Model | G-2D |
Max. azimuth change rate | 2000 / sec |
Maximum value of overload | 16 g |
frequency Management | 1.000 Hz |
Accuracy | 0.1° |
control range | 45℃~45℃ |
dimensions | 11 x 9.5 x 7.5 cm |
Weight | 262 g |
Camera | iLook |
video Resolution | 1280×720 |
photo Resolution | 1 MP |
Frame frequency | 30 k / s |
video format | AVI |
The operating frequency of video transmission | 5.8Ghz |
Weight | 125 g |
In the case of iLook + often offered equipment with remote control Devo F7. Very convenient, because the camera is recording digital video on a flash card, and by a special antenna transmits video stream protocol 5.8 GHz at a distance of 500 meters (up to 1 km for transmitting upgrading Devices). The camera is able to broadcast and via Wi-Fi on a smartphone, but in this case the range will not exceed 300 meters. (It is important when using DEVO 10.)
All of these figures can be improved to a certain extent: put the new, more powerful transmitters reception-signal transmission apparatus equipped with telemetry and more advanced GPS module external compass. But the battery, motors and propellers to change - is meaningless, as is shown by the numerous reviews valkerovodov (and this is another advantage - a huge community, which is always ready to provide support any issues). They are so perfectly matched - with any other characteristics begin to fall.
For the end user QR X350 Pro is supplied in the form of polurazobrannom: trunk, battery, propeller, "legs", the suspension, the camera. Well and additional accessories like charger (regular - not recommended, charging long, heated and slowly spoils the battery). To start flying it is necessary to collect all this according to the instructions included (again according to the instructions). Then you need to calibrate the compass. Initially, the motors are locked. After some manipulation, they are unlocked - and you can enjoy the flight.
Unlike many of the more budget analogues, at the slightest faults and remote device can be connected to a computer via a conventional lace USB-> miniUSB. Also full flashing flying complex components can be accomplished by fine-tuning components, e.g., to introduce amendments supply voltages for balance correction in flight. Or introduce amendments to the software to install the maximum height and range, action on loss of communication or fall the battery voltage (discharge) the battery at the level of the critical stress (in order to realize the controller in advance to reduce the capacitance battery). Available and other no less useful settings.
conclusions
The Walkera QR X350 Pro can be customized and changed almost everything. And how using a huge range of branded accessories, as well as most third-party (even remote, because inside quadrocopter separate processor, and separately - the receiver control signal which can be replaced others). With a strong desire, after prolonged use, the main components can be used to build your own machine the same 350-class. Excellent model, which in its capabilities can satisfy any beginner or advanced kopterovoda.
The only drawback of the model is a fairly high cost. Minimum set without dewlap, the camera, but with Ten point the remote control and the battery will cost $ 500. Option with remote control Devo F7, dual-axis camera stabilizer, the camera hardware and accessories for video transmission to the ground - about 840 dollars. Competitors are quite a few, but they all have a smaller number of fans (and therefore less support), less modernized, sometimes - lower quality components. If it does not stop, it is primarily necessary to look at these quadrocopter:
Ready to fly with sales video broadcast
EHang GHOST + - 560 dollars (+ High quality, a large manufacturer with the smartphone management - relatively low characteristics);
XK WLXK - X380 - CD - $ 450 (+ High quality, excellent characteristics, and the ability to upgrade third party proprietary components, Arducopter as the control board);
Cheerson CX22 - $ 750 (Almost complete analog of QR350, differs a little more support for the worst);
Zero Explorer - $ 650 (One of the best in the class of drones, piloted by a great and fine tuning directly from the factory, - proprietary software, a small number of owners);
For further modernization
Cheerson CX - 20 - 200 dollars (+ Weight of accessories, Arducopter, - requires deep modernization);
BAYANGTOYS X16 - $ 110 (+ Copy CX-20 - low quality plastic, flight characteristics, the need for upgrading);
XINLIN X163F - $ 107 (Cheap and cheerful);
QW350 - $ 260 (Simple, cheap, brittle)
P.S.
Where flight video examples from the camera? In accordance with the current legislation, to fly unmanned aircraft heavier than 250 grams requires registration and approval of flights. The following material will tell you about how to collect all the necessary documents. Well, if you do not feel like such a hassle, see our article on the nearest drone for movies, which do not require registration operations.