Author Topic: OpenIRV. ISC0901B0 (Autoliv NV3, FLIR E4/5/6/8) based opensource thermal camera  (Read 73663 times)

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Offline Citizen

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Denis_K, we can cooperate with you, the following advantages:
- logistics chains are well established between our countries;
- in connection with the current terrible events, several of my colleagues in Armenia (next to the author)));
- I have access to the European auto parts market, NV3 is much cheaper there than in our countries.
 

Offline Citizen

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I have small experience with UAVs, and absolutely no any experience with FPV, FPV-cameras, interfaces, etc... Are you still flying on NTSC or PAL?  ;D
That's why I have some question to you and community:

1. What do you think about this addon? Is it worth doing?
2. What about total weight and dimentions?
3. What kind of interfaces FPV pilots use nowadays? Is AV enough? What is the output format (NTSC/PAL/or...)?
4. What else is reasonable to add to the board?

I have experience.
Focusing - not needed for flying, but needed for ground (for example, a robot for surveying communications) drones.
Need Ingress Protection (IP).

The following interfaces are required:
- AV (PAL25, NTSC30) - yes, this is relevant, there is no delay;
- USB (for Raspberry Pi);
- miniHDMI (720p60);
- PWM / UART / PPM - switching palette, focus (if implemented) and calibration (on, off, automatic).
For the broad masses of users, PWM / PPM is relevant.
In my projects, I like to implement such interactions on UART:
- 2 bytes for synchronization;
- information byte settings flags (palette, calibration, autofocus);
- information byte 255 gradations of focus;
- the last byte is the modulo sum of two information bytes.

Power supply 5v (required) or 8-60v (optional).

Interchangeable back panel, only with required interfaces. For example coaxial sma/mcx for AV and 4 pin power/uart.
 

Offline Denis_K

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In my projects, I like to implement such interactions on UART:
- 2 bytes for synchronization;
- information byte settings flags (palette, calibration, autofocus);
- information byte 255 gradations of focus;
- the last byte is the modulo sum of two information bytes.

I think, for unification, you can repeat the uart protocol, such as flir Photon, tau, etc .. (there is a detailed open description of the commands, the file is attached). At least get away with it.
« Last Edit: May 22, 2022, 10:40:56 pm by Denis_K »
 

Offline Citizen

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I think, for unification, you can repeat the uart protocol, such as flir Photon, tau, etc .. (there is a detailed open description of the commands, the file is attached). At least get away with it.
Yes good idea
 

Offline MIKUTA

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 I don't have the technical knowledge to understand exactly what is going on, but I heard that the camera can be activated by following the URL below.
https://github.com/pavelmalik/BMWCanBridge
https://www.bmwcustomretrofit.com/navigation-retrofits/BMW-Night-Vision-System-Activator
 

Offline Citizen

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I don't have the technical knowledge to understand exactly what is going on, but I heard that the camera can be activated by following the URL below.
https://github.com/pavelmalik/BMWCanBridge
https://www.bmwcustomretrofit.com/navigation-retrofits/BMW-Night-Vision-System-Activator
I know similar projects, but they use the original video processing unit from the car. The activator is already working with this block.
 

Offline LesioQ

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I tried to find this info in the OpenIRV docs, but couldn't : what kind of LCD display should be used for this project ?
I mean the model / type that needs no further firmware modifications.
 
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Offline rockwell

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Should one need a new camera, I have one to let. contact by PM.
 

Offline VGN

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Hello!

Have added datasheets for LCD and focus motor: https://github.com/OVGN/OpenIRV/tree/master/docs/BOM/BOM_v1.1.0
You can easily find both. Note that there are a lot of manufacturers that make same 6mm geared DC motors.
Use provided motor datasheet as a reference. The key parameters are diameter (6mm), gear ration (~1:26), shaft geometry and voltage (nominal 3.0V).
« Last Edit: July 28, 2022, 01:16:34 am by VGN »
 
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Offline LesioQ

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Thank You. That clarifies things further. And how is Your progress with bootloader part ?
I guess FPGA needs to be programmed ISP, so will bootloader be involved ?
 


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