Paul Iddon
Well-Known Member
- Joined
- Apr 5, 2016
- Messages
- 1,744
- Reaction score
- 1,363
- Location
- Preston
- Country
- United Kingdom
- Dash Cam
- Viofo A139 Pro 4K, A129 Pro Duo 4K, A229 Duo 2K, & NB 522GW
Yep, I know
Well, yes. Someone cares about the number of subscribers and views. Personally, I don’t.That's the problem. What we may deduce about the dashcams that we test here, if it's a YouTube reviewer with 200k subs then of course their review is going to have more clout. Even if they don't know what they're doing or reviewing
I should clarify that I mean that the viewers will by default, decide that their reviews have more clout. By virtue of their increased views etc.Well, yes. Someone cares about the number of subscribers and views. Personally, I don’t.
Although I am pleased to know that my videos help people make choices. And it doesn't matter which way.
lol. Where is the design flaw? A229 Pro is sharing the same case as A229 and I don't remember about heat problems, generally speaking.Honestly Agie if it wasn't for you we wouldn't have seen this design flaw.
Dashcam colling is based on heat dissipation and not ventilation holes. There are few holes in each dashcam but they don't help too much in he cooling process.A. Shorten or remove the heatsink and make side vents larger and place ventilation elsewhere.
OMG, no!B. Install a user replaceable fan inside the unit. User replaceable because when it fails or on the verge of failure the noise it will make will be intolerable.
A good joke to abandon the shape which was making Viofo famous. The wedge design is one of the best designs for dashcams, maybe the best design ever. Lets make the smartphones squares or rounded because some batteries exploded.C. Time to move on from the wedge shape. Start with the standard point and shoot digital camera style and then start trimming the fat. Keep the screen but have backlit soft keys. Or you can make the screen much smaller and drop the live view look and more like pictogram digital display like you find on a printer/photocopy machine.
What limited functionality is possible for a dashcam? To not record? To just stay turned on? You should consider that all the heat problem is when the camera is in parking mode and not in driving mode. The camera must record in parking mode if the user enabled it and not just stay on. The thermal protection it is for shut it down and this is the best option. Maybe next time the driver will try to park the car not facing to the south or he will stop using windshield sunshaders.D. Release a new firmware which takes into account thermal throttling. So instead of on --> overheat hard shutdown have on --> thermal throttling to allow limited functionality --> hard shut down
Agie already told how was the status of the camera you should pay more attention when reading.Was it in parking mode or was it completely off? I'm assuming the overheating shutdown was done as you started your car.
Yes using the original 128GB Viofo card.lol. Where is the design flaw? A229 Pro is sharing the same case as A229 and I don't remember about heat problems, generally speaking.
Dashcam colling is based on heat dissipation and not ventilation holes. There are few holes in each dashcam but they don't help too much in he cooling process.
OMG, no!
A good joke to abandon the shape which was making Viofo famous. The wedge design is one of the best designs for dashcams, maybe the best design ever. Lets make the smartphones squares or rounded because some batteries exploded.
The screen is used as heat dissipation too. It is hot because of heat transferred from the main chipset and this is normal.
The more case you have the more the dashcam will be cooler. This is why you cannot put a real 4K dashcam on 2 or 3 channels in small cases. This is why the Viofo Mini 2 is just 4K and it will be never a 4K Viofo Mini 2 Pro.
What limited functionality is possible for a dashcam? To not record? To just stay turned on? You should consider that all the heat problem is when the camera is in parking mode and not in driving mode. The camera must record in parking mode if the user enabled it and not just stay on. The thermal protection it is for shut it down and this is the best option. Maybe next time the driver will try to park the car not facing to the south or he will stop using windshield sunshaders.
Agie already told how was the status of the camera you should pay more attention when reading.
If Agies dashcam is shutting down when the car is parked with motor running then it is a problem with the main chipset heatsink, it is not making properly the contact with the chipset or with the case and because of this the heat generated by the chipset is not transferred to the case.
I hope Agie is using the original Viofo card because sometimes the camera shut downs are because of card overheat.
I consider the best thing right now is Agie to take out the rear cover and look inside what it is happening. It is very simple to take out the rear part.
The vents need to be the right size for the application, just as a chimney has to be the right size for a fire, too big and it doesn't draw the air through fast enough, too small and it doesn't draw enough air. Just making the vents bigger doesn't work.A. Shorten or remove the heatsink and make side vents larger and place ventilation elsewhere.
It is too hot in there for a fan, fans are designed to draw cool air, which keeps the fan itself cool as well as the thing it is cooling, and there is no cool air to draw - the fan will fail very quickly in hot weather.B. Install a user replaceable fan inside the unit. User replaceable because when it fails or on the verge of failure the noise it will make will be intolerable.
The wedge shape is the best shape for a dashcam, not the best for heat, but 99% of the time I do not have a heat problem, and I prefer the advantages of the wedge shape over being able to use the camera in 40+°C temperatures.C. Time to move on from the wedge shape. Start with the standard point and shoot digital camera style and then start trimming the fat.
We already have that on the A139 Pro, but I'm not sure it makes a big difference, once the air gets too hot, a bit of throttling doesn't make much difference to when the memory card overheats.D. Release a new firmware which takes into account thermal throttling. So instead of on --> overheat hard shutdown have on --> thermal throttling to allow limited functionality --> hard shut down
They can do that, it needed huge investment in their factory, but next year we will see the results...Also I've been beating on it like a drum (some people here agree with me, some don't), but why can't Novatek implement better solutions with their chipsets. Smaller node processes for their chipsets would go a long way to improving efficiency, lowering heat etc. The fact they're using nearly a decade old architecture doesn't sit right with me.
That seems a big difference!My dvr shoots a video with a color rendering error, a photo, perhaps a firmware error, or an error in the device!!
And all three cameras shoot this way!
Gentlemen, can you check something like this on yours??
Thank you
I think you're right, when the weather gets better, I'll put it in the car and see what happens!!I think when you install it in the car, you will get a good result
Can you post an image with it outside the car and in the sunshine? Include some green trees or grass if possible.No, installing it in the car didn’t help, there’s a lot of red!!
Temperature 229PRO, in the cabin +24C
No spec sheets they're hard to find for the chipsets. Even manufacturers are pretty coy about revealing exactly what specs are in them.I too would like to apologize!
I thought I had done enough research to have posted my opinion however it was only after I posted did I start to find much more information to contradict my viewpoint - I truly wish there was a way that I could have deleted my post at the time lol.
I had actually put in an order for the VIOFO A229 Pro 2-Channel then cancelled it.
However I can happily say I am re-ordering it now (well in the process of) as well as the hardwiring kit directly from VIOFO for the A229 Pro, a bluetooth button, and an 8m cable. I have a 2009 Toyota RAV4 with the door opening tailgate. Furthermore I found a company to install it for me.
Finally I won't have to worry (well a lot less than before) about rocket propelled sheets of ice from other vehicles in the winter and cyclists in Montreal and to a lesser extent Ottawa.
Also, I forget which thread it was in but thank you VIOFO for letting me know that I could order a CPL for the rear cam of my soon to own A229 Pro rear cam.
"Let us celebrate our new arrangement with the adding of chocolate to milk." - Homer Simpson
Now question; Novatek. I tried searching online for some information about the 96529 chip. However all I was able to find was just the company website. Does anyone have a spec sheet for that chip just like how Sony has done for their sensors: https://www.sony-semicon.com/en/products/is/security/security.html
太感谢了,这个帖子很有价值!