Which triggered IP camera to choose?

Question

CCTV

The essence of the problem is very simple. It is necessary to install a camera in the production, so that the employee would install the product in a strictly designated place, press the button and the camera would take a photo. The photo must be sent to the server for further review. Ideally, it would be nice if the camera connected to some IP address and sent photos there, and we would write an application to collect photos.
What can you advise about this?

Answer 1

Look for a camera with "dry contacts". This is not the lowest-cost, but budget. Further, in the technical support of the support, you specify that the camera can send a frame to ftp by closing the alarm input. Put a button, a bell, a foot pedal, etc. on the circuit. etc.
Profit!
And the very place of view of the camera is marked with colored tape.
The functionality is on hisilicon processors and similar cameras are littered with ali. But you need to be prepared for the clumsiness of the firmware, it is better to take it from those to whom you can take out the brain.

Answer 2

Number of cameras, picture quality, budget?
If the batch is large, you can order the manufacture of a specialized device, if not, you will have to design from what is available for sale:
1. MR3020 + OpenWRT + webcam. Additionally, you may need a USB hub and a flash drive. Inexpensive, but the quality of the picture will be so-so.
2. Raspberry Pi + Raspicam. If necessary, you can increase the aperture and sharpness by adding a lens from a video surveillance camera. The most flexible and hassle-free option.
3. DSLR (Canon/Nikon) + fixed (lens) + gphoto2 + RPi or MR3020. High quality picture.
Buttons:
The MR3020 has a built-in button that can be used for any task, including launching user scripts (you need to specify its resource). The RPi has GPIO ports to which you can connect any button. Alternative options: microcontroller, keyboard, mouse, pointer, headset, etc.
Light:
In good light, you can take acceptable pictures even with a simple camera, and in bad light, a DSLR can also fail. Therefore, it is desirable to install additional lamps directly above the shooting location. The light needs to be bright, but soft, the lamps must be with good CRI. You can control the light programmatically - turn it on only for the duration of the shooting (using the GPIO, through the transistor, control the relay to which the lamps are connected).
Sending to server:
Script in bash or python. When you click on the button, record a frame from the camera to a temporary file, run rsync to copy it to the server, delete the file.