:: introduction to z410-4bSecondary developmentAfter nearly a year of repeated testing, the z410 upgrade of the strawberry 4b finally met you! The z410 was designed to provide you with a base, open source, high value, scalable, secondary developmentDroneI don't know. It leads to knowledge and familiarity with the current excellent open source project, artupolit, and open source hardware pixhawk. On this basis, more and more uav applications have been developed by combining specific projects of their own。
The z410-carrying 3b+ model has been unanimously recognized since it was installed. It contains basic knowledge of the introduction of drones and the extension of on-board computers. A clear understanding of the drone system has been created to meet the requirements of the secondary development。
Product characteristics
The upgrading of the 4b board of the raspberry pie, the continuous upgrading of the performance of better hardware and the optimization of the open-source system have led to the necessary upgrading of the 4b。
Details of performance can be found in:
Https://shumeipai. Nxez. Com/2019/06/26/raspberry-pi-4-review-the-new-gold-standard-for-single-board-computing. HTML2 and 4b versions of the stairwell still inherit the advantages of a strong and falling upper generation, which is particularly important in the development tests。
3. The layout and layout were optimized during the rational assembly process, resulting in unnecessary emptiness and openings. Everything comes for easy use。
Product characteristics
In the course of using it, we keep gathering feedback: internet connections are cumbersome and out-of-door testing is not easy; there is no video feed, and separate cameras are required to handle the video... In response to these problems, we have integrated more functionality in 4b. Add the following functions to the first generation 3b+ development platform:
Ubuntu. 04, now the latest open-source system, is installed in strawberry 4b, which is smoother than the ubuntu mat system; 2 and 4b versions of the shelf are still the legacy of the previous generation's shelf, which is particularly important in development testing。
3. The layout and layout were optimized during the rational assembly process, resulting in unnecessary emptiness and openings. Everything comes for easy use。
In the process of upgrading 4b version 6, we are constantly gathering feedback: internet connections are cumbersome and out-of-door testing is not convenient; there is no video feed, and the processing of video requires the installation of separate cameras... In response to these problems, we have integrated more functions in the 4b system. Add the following functions to the first generation 3b+ development platform:
Ubuntu. 04, now the latest open source system, is installed in strawberry 4b, which is more fluid than the ubuntu mate system
Use of a 4b wifi hotspot to build a local area network (lan) without extra routers for outdoor testing. The pc ends can connect directly to 4b's wifi hotspots and remotely connect to berry pies via ssh commands; avoid the cumbersomeness of the one-generation system configuration network and make it easier for newers to operate; 4b is a digital telemetry function. When the pc end connects to the wifi hotspot of 4b, access to the web browser 10. 42. 0. 10:3000 allows digital transmission to be activated
When the mp ground station is opened, the flight data can be returned to the computer ground station via the udp connection. Similarly, mobile phones can be connected to this hotspot for cell phone-receiving ground stations
A stand-by camera set has been added, which can read the video stream through the berry pie and use tools such as opencv for visual processing; it can also send real-time high-resolution video back to the pc end or back to the mobile phone
4b has a usb3. 0 interface and can be observed at the end of the pc with fish eye images of t265 (also in support of d435i) through tools such as rs-capture. This cannot be achieved on 3b+
Further optimization of positioning parameters to make indoor positioning more stable
:: technical parameters *hardware configuration: (visual version)
Panel: 410 all-carbon fibres
Flight control: pixhawk 2. 4. 8
Gps: se100
Remote control: fuss i6 with ia6b receiver
On-board computers: strawberry pie 4b (4g version)
Single camera: 200w hd
Double-eye camera: intel t265
Batteries: 3s 5200mah
Charger: a400
Software configuration:
Ubuntu20. 04: updated version of the ubuntu system
Dronekit-python: python library for programming control of drones
Ros (noetic)/mavros: robotic systems that control drones through mavros programming
Opencv: visual treatment
MavlInk-router: mavlInk route
Gstramer: video transfer
It's very simple
At the same time as the system integration test, we are fine-tuning the description of the tutorial, combining text with video as much as possible and making it more acceptable
Based on the vast branches and knowledge of open-source systems, as well as the understanding of the uas and the different directions of their application, we cannot achieve full-scale after-sales technology support. But we will provide guidance within our capabilities, depending on the degree of ease with which you are faced. At the same time, in order to meet the different needs of our students, we have set up a z410-berry drone interest technology exchange group, which we hope will help each other in their areas of expertise to explore problems encountered in their use and ways of dealing with them. This allows more students to learn through this type of machine to want to know what they want to do。
There are no limits to learning and exploring! As open-source projects evolve, we will, as always, add more functionality and optimization. We will publish an updated z410-type curriculum on a regular basis at the public sign or at a forum. Bring in more and more friends who like open sources, like drones. I hope this machine will bring you a new experience
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