IoT can bring a great respite. With pendent shape tracker which can be tied up in dog's neck and an mobile app, your dog can be tracked wherever he is out. You can also define Geo fencing so that whenever dog is outside that range you will get an alert. The tracker can be equiped with microphone or camera to get a feel of his surrounding areas.
Mobiloitte can help in design & developing the firmware part of the tracker and also the moble app. The communication medium will be cellular network. Pet plays an key part of our life. Their well beings & safety is equally important for us. While playing outdoor we need to keep an constant eye on them.