Battery monitoring options.

I am in the process of building a new hexacopter powered by pixhawk 4 which is likely to fly sensors costing several ten's of thousands and I want to improve power delivery. I wanted to know your experiences with multiple batteries on the drone.

So far I have only used a single battery at any time but I know people that use multiple batteries on large crafts as it gives better COG when using different payloads configs and they don't have battery status available other than buzzer/timed flying.

Please look at the attached file showing options and give your opinion.

Essentially in option 1, as far as the system is concerned, there is only only physical battery with a larger capacity.

In option 2 the system is aware of presence of multiple batteries and is able to monitor consumption out of each. Although it can not be scaled as it is dependant on the availability of ADC channels but provides power pathway redundancy.

Pixhawk 4 specifically has 2 power ports. Each power port has its own ADC channels for voltage and current so it is capable of monitoring two batteries at once. But if using the supplied PM07 module, you are only monitoring one physical battery and the other power port is acting as a redundant voltage and current sensing since the PM07 only has one sense resistor and two op-amps for current.

Thanks

Screenshot 2019-07-10 at 15.36.34.png

You need to be a member of diydrones2 to add comments!

Join diydrones2

Email me when people reply –

Activity

DIY Drones via Twitter
Welcome to the new DIY Drones design!. You may have noticed that DIY Drones looks a little different today. That's… https://t.co/cg2EmeDGMQ
12 hours ago
DIY Drones via Twitter
New! Online Training on Drones for Disaster Response https://t.co/brqRuujjY2
yesterday
DIY Robocars via Twitter
https://t.co/8EMCvYW6oz
Tuesday
DIY Robocars via Twitter
RT @OttawaAVGroup: We are going to try something new this week. We will be having a drop-in style meeting Wednesday @ 7-9pm EST. Pop in and…
Monday
DIY Robocars via Twitter
RT @tawnkramer: Thanks Everyone for another fun virtual race! Amazing Ai racers competing head-to-head, Virtual Makers Fair event. Catch us…
Sunday
DIY Robocars via Twitter
RT @make: Find out the latest from @diyrobocars at 10am PT from @chr1sa of @3DRobotics on Virtually Make Faire! #makerfaire #maketogether #…
Saturday
DIY Robocars via Twitter
RT @Heavy02011: Join us Saturday online: Virtual Race League: @DIYRobocars Race #2 - Parking Lot Nerds https://t.co/aJUu4sdutx #Meetup via…
Saturday
DIY Robocars via Twitter
RT @donkey_car: Yay, we are part of the virtual @makerfaire with @diyrobocars. Come see our race or better yet train a model and race with…
May 21
DIY Robocars via Twitter
RT @chr1sa: The @DIYRobocars Virtual AI Race is going to be part of the virtual @makerfaire on Sat! https://t.co/wnMDAboLID
May 20
DIY Robocars via Twitter
RT @tawnkramer: Please join us next week for our second DIYRobocars online race. We will be using a new Mountain Track course! https://t.co…
May 19
DIY Robocars via Twitter
RT @SmallpixelCar: I realized that the size of the cones in @diyrobocars is known. If we can detect the bounding box, which can be done wit…
May 19
DIY Drones via Twitter
RT @chr1sa: Our next @DIYRobocars autonomous car virtual race is this Saturday. Sign up here to compete or just spectate on @Twitch https:/…
May 19
DIY Drones via Twitter
Definitive Guide to Setup Drone Delivery System https://t.co/7ibwcgF24h
May 19
DIY Robocars via Twitter
RT @DAVGtech: The next @diyrobocars virtual robocar race is this Saturday. One of many interesting issues we are taking a stab at is "how c…
May 18
DIY Robocars via Twitter
RT @chr1sa: cc @DIYRobocars @donkey_car https://t.co/ewbyqZ3xC0
May 18
DIY Robocars via Twitter
RT @chr1sa: This is the technique that many of the @DIYRobocars racers use to estimate their localization position on the track https://t.c…
May 18
More…