I've been able to do some pretty miraculous things with 3G/4G cellular links over the past decade. Things people said were impossible at the time. Obviously the largest challenge with such a volatile network is reliability/consistency which, if you don't ace that part, it's not really worth doing. At least in my opinion.
So I've seen a number of people try this and results have been "meh". A lot of challenges with it for sure.
Very basic idea. Car starts--> Turns camera and router on --> Establishes VPN link to home --> Camera server starts up recording process.
I'm using a BMW X3 for this test so I had to be REALLY picky about what type of components to choose. Mostly because this car is junk and a cell phone charger will keep the internal computer spinning despite a 15 minute auto-off and some other garbage..
TOP-308 chosen for size and low amp pull off of 12V
Tucked away hidden behind the visor I left this part out because it's an easy thing to check. If the LAN link is blinking rapidly it means all is well. Otherwise all hidden away.
Here's the view of the mirror for reference. Yes, I could have done a better job hiding the Ethernet cable but I don't care. The standard local recording dash cam is to the right.
Front view. 5 cameras total in this car now. What an age we live in.
The yellow brick is the router. It has USB 3G/4G capability but I'm using a hotspot that it tethers with wirelessly. It stays with me 24/7 and has a battery life of like 5 days so it's just something that works amazingly well for my use. As soon as I approach the car the fob signals the aux to turn on and the router makes its connection with my messenger bag and away we go.
Quick first run test. No edits to RTSP/Encoder yet. Fine tuning will be necessary, but not by much if I'm being honest. 25fps/1700-2500/2 seems like this system can breeze through it.
Unlimited/uncapped data on SIM which obviously is necessary for this, and the car continues to stream for that 15 minutes after the last button or door is touched. Unlocking car or pressing any button on fob will spin the system up for 15 minutes if the engine is off.
Can this be run in a "set it and forget it" fashion? It is in this example so where I used to say no way, I'm thinking that's now a big 10-4.
-G
So I've seen a number of people try this and results have been "meh". A lot of challenges with it for sure.
Very basic idea. Car starts--> Turns camera and router on --> Establishes VPN link to home --> Camera server starts up recording process.
I'm using a BMW X3 for this test so I had to be REALLY picky about what type of components to choose. Mostly because this car is junk and a cell phone charger will keep the internal computer spinning despite a 15 minute auto-off and some other garbage..
TOP-308 chosen for size and low amp pull off of 12V
Tucked away hidden behind the visor I left this part out because it's an easy thing to check. If the LAN link is blinking rapidly it means all is well. Otherwise all hidden away.
Here's the view of the mirror for reference. Yes, I could have done a better job hiding the Ethernet cable but I don't care. The standard local recording dash cam is to the right.
Front view. 5 cameras total in this car now. What an age we live in.
The yellow brick is the router. It has USB 3G/4G capability but I'm using a hotspot that it tethers with wirelessly. It stays with me 24/7 and has a battery life of like 5 days so it's just something that works amazingly well for my use. As soon as I approach the car the fob signals the aux to turn on and the router makes its connection with my messenger bag and away we go.
Quick first run test. No edits to RTSP/Encoder yet. Fine tuning will be necessary, but not by much if I'm being honest. 25fps/1700-2500/2 seems like this system can breeze through it.
Unlimited/uncapped data on SIM which obviously is necessary for this, and the car continues to stream for that 15 minutes after the last button or door is touched. Unlocking car or pressing any button on fob will spin the system up for 15 minutes if the engine is off.
Can this be run in a "set it and forget it" fashion? It is in this example so where I used to say no way, I'm thinking that's now a big 10-4.
-G