Standalone PTZ

Hi.

I want to use a Hikvision IP PTZ camera as a standalone device with not NVR. I can connect this to the local LAN and access the built in web view, which is all that will be needed. I would like to add PTZ joystick control, and while I could run a serial cable to the camera location, I wondered if there was a network version that can control the PTZ of the camera without an NVR?

The site already has CCTV and an NVR, this is just a completely standalone live view only.

Thanks.