Constant Power Cable OP100

[Mtz]

I think it is very clear the situation about the cables:
- USB-A to USB-C cable for OP-100 = enter parking mode based on engine running or not (it can enter in parking mode only if you are stuck in the traffic for more than 8 minutes, but this is happening with any cable, any power source)
- original dashcam cable = enter parking mode based on motion of the vehicle

The impact detection it is a very interesting feature for older generation Viofo dashcams. But the wake up time will depend on the original wake up time of the dashcam.
So even the car battery went under 11.8V, the OP100 will power on the camera for two minutes and cut off the power again. I am very sure a car battery will not be damaged if the OP100 will generate power for a two minutes recording.
I expect a car battery voltage lowered by dascham function to 11.8V to recover some 0.1-0.2 volts at least and acquire 12V after some time.

 

[rcg530]

The problem I have with my latest OP-100 [third unit I've tested] is that it will interfere with the parking mode impact detection/handling logic of the dash camera.

• OP-100 detects a voltage decrease of 0.5V or more and no impacts [or vehicle movement] have recently occurred:
  • The OP-100 turns off the ACC power to the dash camera to have it enter parking mode.
• A parking mode impact event takes place
  • The dash camera starts to handle the impact event as defined by whatever parking mode it's operating in
  • At the same time, the OP-100 restores ACC power causing the dash camera to switch from parking mode to normal recording mode
  • The transition time from parking mode to normal recording mode results in a loss of video/audio due to the operating mode switch.
    • About 4 seconds of video is lost due to the mode transition
  • Instead of the OP-100 letting the dash camera handle the impact event as defined by the parking mode it's in, it interferes with the dash camera's parking mode by restoring ACC power

There have been a small number parking mode impact events when the OP-100 did not detect the impact, but the dash camera [A329S 3CH in my case in low bitrate parking mode writing files to a PSSD] detected the impact event and processed it on its own. A vast majority of the parking mode impact events [the closing of any door/liftgate] results in the OP-100 behaving as mentioned above.

I've reported this behavior to VIOFO a couple of months ago. At this time, there isn't a solution for it.

 

[TonyM]

The problem I have with my latest OP-100 [third unit I've tested] is that it will interfere with the parking mode impact detection/handling logic of the dash camera.

• OP-100 detects a voltage decrease of 0.5V or more and no impacts [or vehicle movement] have recently occurred:
  • The OP-100 turns off the ACC power to the dash camera to have it enter parking mode.
• A parking mode impact event takes place

Out of interest, how are you triggering a parking mode impact? Is it by opening/closing the door?

I noticed similar behaviour with the S1 4K OBD adapter, causing the dashcam to enter normal record mode rather than remain in parking mode when I open the door.

EDIT: Comments moved to DM to avoid off-topic discussion on the OP-100

 

[rcg530]

Out of interest, how are you triggering a parking mode impact? Is it by opening/closing the door?

I noticed similar behaviour with the S1 4K OBD adapter, causing the dashcam to enter normal record mode rather than remain in parking mode when I open the door.

EDIT: Comments moved to DM to avoid off-topic discussion on the OP-100

Luckily, my car is not being hit while it's parked by other cars/people/carts. The impact events that trigger the restoration of ACC power to the dash camera is my closing of a door/liftgate. The most common occurrence is when I return from a store, open the rear liftgate, place my purchased items in the rear of the vehicle, and close the liftgate. When the liftgate is closed, the OP100 is restoring accessory power for a period of time. If the vehicle remains parked, the OB100 will turn off the ACC power again after a few minutes and the dash camera will return to parking mode again. In this case it's the impact event [door / liftgate closing] that awakens the OB100. The main problem being that the OB100 and the dash camera are racing to handle the same impact event [OP100 restores ACC power, dash camera handles it based on the current parking mode]. Since the ACC power is restored by the OP100, the dash camera will abandon its parking mode handling of the impact event and switch to normal recording mode. The transition from parking mode to normal recording mode ends up leaving a gap in the recorded video for the impact event. If an actual impact event [not related to a door/liftgate closing] occurs, the dash camera's parking mode won't be allowed to handle it fully.

Some other brands of OBD-II power adapters have additional data link connector pins that monitor for CANBUS activity and will awaken the dash camera from parking mode when a door is opened [no impact event]. The CANBUS activity that occurs when a vehicle module awakens and causes activity on the CANBUS [pins 6,14 or other pins being monitored] will have similar looking behavior to the OP100.

 

[TonyM]

In this case it's the impact event [door / liftgate closing] that awakens the OB100. The main problem being that the OB100 and the dash camera are racing to handle the same impact event [OB100 restores ACC power, dash camera handles it based on the current parking mode].

I'm confused. How can the OB100 respond to an impact event without a g-sensor onboard? I thought it was just a hardwire kit with a modified plug.

Or does it have a sensor so it can "restart the power supply for 2 minutes upon detecting an impact"?

 

[rcg530]

I'm confused. How can the OB100 respond to an impact event without a g-sensor onboard? I thought it was just a hardwire kit with a modified plug.

Or does it have a sensor so it can "restart the power supply for 2 minutes upon detecting an impact"?

View attachment 88129

The OP100 does have a g-sensor for impact/motion detection. The g-sensor is also being used while in normal recording mode [ACC on] to keep the ACC power on when the vehicle's charging system reduces the system charging voltage level to a level the OP100 might consider going into parking mode. The first couple of versions of this OP100 that I tried would go into parking mode while driving since my GM vehicle will allow the system voltage level to decrease to 12.6V if the vehicle's battery is fully charged and there's a "light" load on the system. The OP100 voltage level check for going into parking mode alone was not enough to keep the OP100 from thinking it needed to turn off the ACC power to the dash camera in that situation.

I'm don't understand why it's necessary for the OP100 to turn on the ACC when it detects an impact while the ACC power is off [in parking mode]. That's what's interfering with the dash camera handling the parking mode impact event. I can understand allowing the OP100 turn on both the constant power and the ACC power if OP100 has previously turned off the power [constant and ACC] to the dash camera when an impact occurs.

 

[LateralNW]

The OB100 does have a g-sensor for impact/motion detection. The g-sensor is also being used while in normal recording mode [ACC on] to keep the ACC power on when the vehicle's charging system reduces the system charging voltage level to a level the OB100 might consider going into parking mode. The first couple of versions of this OB100 that I tried would go into parking mode while driving since my GM vehicle will allow the system voltage level to decrease to 12.6V if the vehicle's battery is fully charged and there's a "light" load on the system. The OB100 voltage level check for going into parking mode alone was not enough to keep the OB100 from thinking it needed to turn off the ACC power to the dash camera in that situation.

I'm don't understand why it's necessary for the OB100 to turn on the ACC when it detects an impact while the ACC power is off [in parking mode]. That's what's interfering with the dash camera handling the parking mode impact event. I can understand allowing the OB100 turn on both the constant power and the ACC power if OB100 has previously turned off the power [constant and ACC] to the dash camera when an impact occurs.

OB100 or OP100?
Or are you connecting the OP100 to the BP100 to charge it?
thread is called Constant Power Cable OP100
Now I'm confused😕

​

 

[rcg530]

OB100 or OP100?
Or are you connecting the OP100 to the BP100 to charge it?
thread is called Constant Power Cable OP100
Now I'm confused😕

Sorry for the confusion. I've been prepping my car to install the BP100 and then I was posting about the OP100. I'm using the OP100 to power an A329S 3CH dash camera in my car. The VIOFO BP100 battery pack is not yet installed in my car [it will be later this afternoon]. I've gone back and corrected my posts to say OP100.

 

[LateralNW]

Sorry for the confusion. I've been prepping my car to install the OB100 and then I was posting about the OP100. I'm using the OP100 to power an A329S 3CH dash camera in my car. The VIOFO OB100 battery pack is not yet installed in my car [it will be later this afternoon]. I've gone back and corrected my posts to say OP100.

Is there a new battery pack? OB100 or is it BP100. I can understand if the models names are getting confusing given the amount of units you play with. lol.

 

[rcg530]

Is there a new battery pack? OB100 or is it BP100. I can understand if the models names are getting confusing given the amount of units you play with. lol.

Strike two for me. No it's BP100 not OB100. I'm trying to do a few too many things at once.

 

[Mtz]

Not enough! You can think also to EP100!

 

[AJoe785]

Hello all, I am new to this. Just wondering, I see the manual says "Additional Function: The OBD-II power cable enables parking mode when it is connected with our optional cable accessory equipped with ACC detection, allowing the dash cam to record video in parking mode while the vehicle is turned off." What does it mean by this? Is there a separate cable we are supposed to install along with the OBD2 adapter to get instant parking mode? Or is it detecting the voltage drop from within the adapter itself/cable it comes with to determine whether the car is on or off? Sort of like an IROAD OBD2 adapter where it even though its only using Pins 4 and 16, inside the actual wire going to their dash cam, it has power, ground, and ACC . The ACC wire works based off the voltage drop from after shutting the car off, because while its being charged by the alternator its around 13.5V or more, and then drops down of course after the car is off - in turn dropping the battery voltage. This voltage drop (around 0.5V) is how the IROAD determines the car is off and puts the dash cam in parking mode. Just wondering what VIOFO's approach was when they mention that in the manual.

It then says that if your not using this above method (whatever it may imply), then it says it will go into parking mode based off no motion detection for 5 minutes. Now is it talking about physical movement that the dash cam is seeing through the lens? Is it talking about G-sensor inactivity? Or is it talking about stationary GPS coordinates? Manual quoted says, "Note: If using the original power cable, the dash cam can enter parking mode after detecting no motion for five minutes."

 

[VIOFO-Support]

Hello all, I am new to this. Just wondering, I see the manual says "Additional Function: The OBD-II power cable enables parking mode when it is connected with our optional cable accessory equipped with ACC detection, allowing the dash cam to record video in parking mode while the vehicle is turned off." What does it mean by this? Is there a separate cable we are supposed to install along with the OBD2 adapter to get instant parking mode? Or is it detecting the voltage drop from within the adapter itself/cable it comes with to determine whether the car is on or off? Sort of like an IROAD OBD2 adapter where it even though its only using Pins 4 and 16, inside the actual wire going to their dash cam, it has power, ground, and ACC . The ACC wire works based off the voltage drop from after shutting the car off, because while its being charged by the alternator its around 13.5V or more, and then drops down of course after the car is off - in turn dropping the battery voltage. This voltage drop (around 0.5V) is how the IROAD determines the car is off and puts the dash cam in parking mode. Just wondering what VIOFO's approach was when they mention that in the manual.

It then says that if your not using this above method (whatever it may imply), then it says it will go into parking mode based off no motion detection for 5 minutes. Now is it talking about physical movement that the dash cam is seeing through the lens? Is it talking about G-sensor inactivity? Or is it talking about stationary GPS coordinates? Manual quoted says, "Note: If using the original power cable, the dash cam can enter parking mode after detecting no motion for five minutes."

The customized cable comes with the OBD can detect ACC status to enter the parking mode: If the G-sensor has not been triggered within 200 seconds after the car is turned off, the ACC power supply is cut off and then the machine enters parking monitoring mode.

 

[AJoe785]

The customized cable comes with the OBD can detect ACC status to enter the parking mode: If the G-sensor has not been triggered within 200 seconds after the car is turned off, the ACC power supply is cut off and then the machine enters parking monitoring

Understood. And in terms of using the original power cable that came with the dash cam itself, how does it enter parking mode exactly? I would assume 5 minutes of stationary GPS coordinates only because if you are parked on a busy street with cars and people constantly walking by, than the dash cam will never enter parking mode if it was basing it off movement through the lens. Also, once in parking mode, will G-sensor activity cause it to enter regular mode by opening door/liftgate as mentioned before by someone in this forum with either power cable that may be used?

 

[VIOFO-Support]

Understood. And in terms of using the original power cable that came with the dash cam itself, how does it enter parking mode exactly? I would assume 5 minutes of stationary GPS coordinates only because if you are parked on a busy street with cars and people constantly walking by, than the dash cam will never enter parking mode if it was basing it off movement through the lens. Also, once in parking mode, will G-sensor activity cause it to enter regular mode by opening door/liftgate as mentioned before by someone in this forum with either power cable that may be used?

With the original car charger, the camer can only enter parking mode after five minutes of inactivity, it is not stable since strong changes of lights may also trigger the camera as moving event. So we do not suggest it if you want a stable parking mode. If it enters parking mode, the camera will swicth to driving mode when the GPS detects a speed of 8km/h.

 

[Hack_man]

My head is spinning trying to understand the design philosophy of the OP100 regarding parking/driving mode state as a function of voltage level, time, motion and impact.
A flow chart or a state machine diagram to describe desired behavior would be helpful 🤓

 

[AJoe785]

My head is spinning trying to understand the design philosophy of the OP100 regarding parking/driving mode state as a function of voltage level, time, motion and impact.
A flow chart or a state machine diagram to describe desired behavior would be helpful 🤓

So if I'm understanding it right, if you use the cable that will come with the OP100 adapter, the dash cam will go into parking mode when the G-sensor has not been triggered within 200 seconds after the car is turned off. And it then goes to normal mode when the GPS detects a speed of 8km/h and/or 5 mph.

However, as VIOFO mentioned before, if you use the original power cable that came with the dash cam, then it will still go into parking mode, but based off lens light/movement it picks up. This wouldn't give you stable parking mode, especially if your parked on a street where headlights and what not are always being picked up constantly, thus leaving the camera in normal mode.

 

[tampaDude]

Wondering if you have tested OP100 (OBD adapter) to power BP-100 (external battery pack). I don't see a compatible cable that would be used as an input to BP-100. Can we inform Viofo to have it available when OP-100 is generally available for sale so that OP100 can work with BP100.

 

[tampaDude]

Strike two for me. No it's BP100 not OB100. I'm trying to do a few too many things at once.

Sorry for the confusion. I've been prepping my car to install the BP100 and then I was posting about the OP100. I'm using the OP100 to power an A329S 3CH dash camera in my car. The VIOFO BP100 battery pack is not yet installed in my car [it will be later this afternoon]. I've gone back and corrected my posts to say OP100.

How was the install? Were you able to to use OP100 (OBD adapter) to power EP100 external battery pack and then using the EP100 to power up the Dashcam? How did the parking mode function once the car is turned off and EP100 is powering the A329S? How does OP100 stop supplying power to the EP100?

 

[rcg530]

How was the install? Were you able to to use OP100 (OBD adapter) to power EP100 external battery pack and then using the EP100 to power up the Dashcam? How did the parking mode function once the car is turned off and EP100 is powering the A329S? How does OP100 stop supplying power to the EP100?

As I replied to you in another thread, the OP100 cannot power the BP100/EP100 at all. The OP100 OBD-II power adapter can only supply power to a dash camera.