Hello, everyone, I am a robot xiaozhi, welcome to pay attention to the public number: witty person.
In order to achieve wealth freedom, thinking of technology realization, so a few days ago free to hang a Gazebo simulation technical guidance in salted fish, did not expect to really someone to ask, originally wanted to earn a night snack money, the result, good guy:
Bargaining and tools
1. What is the problem of the other party?
The problem should be simple, my Rviz can’t display the Camera image? I said that’s easy. You can do it for ten bucks. He happily agreed to this cheap technical support.
2. Open the dry
After all is small wisdom first time remote technology service, not what experience, but this night snack seems to have experience than I…. He said to me, SUNFLOWER I already installed. Okay, looks like a lot of tech support.
The whole technical guidance is divided into three parts
1. 10 yuan problem: The camera component in RVIz cannot display data ~
Technical operation method: Fixed frame was modified, half of the problem was solved, the camera was not calibrated, and another wave of money was charged
Time: 30 minutes
2. The 15 yuan problem: camera calibration
Technical operation method: a fierce operation such as tiger, print checkerboard calibration (here recommend a good online checkerboard generated website, background reply checkerboard can be obtained, if the network is not good, direct reply checkerboard file can be obtained)
Time: 30 minutes
3. The $65 problem: 3D object recognition
To this step finally understand what the other side to do, the original is a big project, huge loss of 5h, back and forth cudA drive, coupled with remote operation is extremely slow.
Technical tips: Be sure to match the version, then check out the graphics card model and supported CUDA versions, and then get the PyTorch.
Time: 5 hours
In this way, it took a total of 6 hours to solve the problem, and the average hourly wage is 80/6=13.666. I am still tired, but this is the first order of idle fish after all.
Lessons learned
1. If you are not particularly familiar with the problem, you can fix it in threes and threes, or don’t answer it, or raise the price, otherwise it is really a huge loss in the early stage (it is better to deliver food);
2. Make clear the content and scope of the job, and raise the price immediately if it exceeds the limit;
conclusion
In addition to this also encountered to find small wisdom to do the problem, do hand-eye calibration, particle swarm optimization algorithm and so on, a person is really not to win, and the price is too low.
The hearts of this wave of buyers
Everyone has their own good technology, can register an idle fish account shelf, maybe someone needs, and then easily earn a midnight snack. Finally, welcome to follow, like, share ~