1）Profi内置高性能尾陀螺和无副翼控制系统，DJI需另配

2）Profi控制更灵活。规避障碍物时，Profi可直接操作，DJI最好切换到手动模式

 

3）Profi的GPS定位精度更高，DJI的高精度版本尚未推出

4）Profi+GPS 有光学和GPS双重定位，在丢星，低空时定位更有优势

 

5）Profi的SINK STOP特性，可让自动降落更温柔。DJI失控自动降落使用固定负螺距，与地面接触前不会自动减速

6）Profi的FACE HOME功能，在看不清直升机姿态时，可让飞机自动对准家的方向，让后您只需要向前推操作杆即可返航

7）Profi允许在飞行中调整感度，DJI不行

8）Profi的PC软件可调整参数更多，但需要更多的时间，DJI软件使用较简单。DJI飞行前的校准步骤更复杂，Profi校准步骤比较简单

9）Profi厂家提供2年质保，DJI标准版半年质保

10）DJI的状态指示灯可从地面观察

11）DJI有明显价格优势

另：双方均有新产品/新功能开发计划，值得期待。充分的竞争，将使用户最终受益！ ：）

 

与国产飞控DJI的实测性能对比，很全面：

Comparison between DJI's XP3.1 Standard and Captron’s Profi GPS

FAILSAFE
- Both have FAILSAFE that will perform actions according to your programming.
- If you wanted to land in FAILSAFE with the XP3 it will descend according to the negative pitch you’ve entered. At full negative it’s a bit of a hard landing.
- If you wanted to land in FAILSAFE with the Profi GPS you can add the SINK STOP feature that will gently land the helicopter.
- With the Profi a FACE HOME feature can be activated and add a bit of forward cyclic. …FLY HOME…
- Profi has a JUMPER mode where it totally bypasses the system in an emergency. Only available to H1/CCPM helicopters.

GPS/Compass

Both held equally in most cases.
Both have 16 channels.
Both will drift within their given limits.
In my tests I found DJI to drift a bit more in higher altitudes. The Profi GPS held a little bit better. In fact I landed on the same spot where I originally took off from after climbing 300feet with the Profi.

 

Tail Gyro

Profi has a SMM AVCS tail gyro built in.
XP3.1 none.

If using the internal tail gyro of the Profi the Futaba 9254 is recommended.
If using external gyros with either system anything can be used except I had problems getting Futaba 611 to work with the XP3.1.

The GPS/Compass and Tail gyro work together for the FACE HOME feature in the Profi.
XP3.1 does not have this feature.

Tail control is more flexible with the Profi.
XP3.1 limits yaw in AUTO mode.

Optical instruments

Profi has four imaging systems.
XP3.1 none.

IR Instruments

Profi has an IR instrument that’s works within 1.5 meters for ground sensing. Obviously not affected by time of day.

XP3.1 none.

IMU

Both systems have inertial measurement systems for maintaining attitude.
Attitude control really depends on the pilot’s taste.
XP3.1 limits the pilot’s control by minimizing cyclic and collective input in AUTO mode.

Profi, even with the gains at max, the pilot still has considerable control even when set to altitude hold and position hold.

Comparing attitude modes in both systems (Profi’s horizontal hold and XP3.1’s attitude mode) the Profi performed better in my opinion as instant input was available.
Input to XP3.1 is like in AUTO mode but without the GPS… slow.

 

Barometric sensor

Both have this sensor.
Profi GPS has it externally.
XP3.1 has it built in.
Both perform equally.
Both are affected by sudden wind gust and will climb or drop.

Receiver channel availability

With the Profi you can use all the channels in your receiver.
With the XP3.1 you are limited to what is available with the “adapter”.

This leads to Power Management.
With the Profi it is powered with regular RX power source.
With the XP3.1 a 2s Lipo is required to power the XP3.1 system. This does not include the RX power.

Both can be wired for redundant power source.
XP3.1 limited to 4.8V
Profi can handle 6V.

Vibration damping

Both have vibration damping system.
With the XP3.1 it uses 4 “rubber” feet.
The Profi has it built in internally.

 

Flight data recorder

Profi GPS none.
XP3.1 has an SD card that records flight data.

 

LED Status indicators

Profi has it built in as well as the GPS. This is not viewable from the ground. Although not required in my opinion.
XP3.1 has an external LED status indicator. This can be viewed from the ground.

Flybarless

Profi has Rigid capability.
XP3.1 none.

Software

Profi GPS software has a lot more to offer and more flexible than XP3.1. There are too many features to list. Given the flexibility of the Profi it also requires more time to setup and fine tune. XP3.1 is a bit easier to setup in the software.

Calibration is a bit more work with the XP3.1 especially with larger helicopters.
Calibration with the Profi is much easier.

Flexibility
Profi allows adjustment of gains “on the fly”.
XP3.1 does not.

With the Profi the pilot still has the feeling of flying a helicopter.
With the XP3.1 the pilot has the feeling of flying a robotic helicopter. DJI says, “One joystick at a time”.

So in obstacle avoidance you would have instant input with the Profi.
Best to switch to manual mode with XP3.1

NOTE: THERE HAS BEEN IMPROVEMENTS WITH XP3 31006 FIRMWARE WITH PILOT INPUT. I HAVE NOT HAD THE CHANCE TO TEST IT YET.

Weight

Profi is about 0.75lb
XP3.1 1 lb

Warranty
Profi 2 years
XP3.1 Standard 6 months
(future) XP3.1 Professional 1 year.

 

Profi专业版主要特性(如需详细资料请直接与我们联系13921446389)：
1.可定点悬停(抑制漂移)
2.当失去遥控信号后能够控制直升机自行安全着陆
3.内建串行接口可扩充地面站功能(如GPS、罗盘系统)
4.内建4个光学图像系统
5.三轴加速度传感器
6.三个高性能陀螺仪
7.一个高度传感器
8.四个微处理器
9.第二辅助CCD摄像系统用于漂移抑制
10.专为工业、商业级航拍应用设计

 

Designed for professional usage with industrial helicopters, commercial applications, and machines which are particularly valuable. Particularly smooth and accurate stabilisation when the helicopter is hovering. Positional stability up to altitudes of about 10 m, in winds of up to about 5 m / sec. Also suitable for use in built-up areas. Expanded safe temperature range High-grade fail-safe function (for PCM / FM) with automatic landing if radio link fails. Serial interface for optional ground-link telemetry and for future additional instruments (magnetic compass and GPS) Electronic linearisation with four-servo linkages to guard against mechanical stress Robust, weatherproof aluminium housing with integral vibration / shock absorption features High-quality instrumentation for maximum security. Essential features include: Four optical imaging systems Triple-axis accelerometers Three high-quality SM gyros Air-pressure altimeter Four micro-processors Second redundant CCD sensor for drift monitoring Purchase price includes configuration to the individual helicopter ! Specification : Operating voltage: 4.8 - 6 Volts (4 - 5 NC) Current drain: approx. 300 mA at 5 V; approx. 200 mA at 6.5 V Weight complete: 230 g Dimensions: Height 73 mm, total 85 mm incl. lower protective tube, diameter 74 mm, 61 mm with side flattened