Special populations (pets) positioning through special populations (pet) positioning through family members caring for the needs of special (elderly and children) design positioning program can be installed on the existing mobile phone, also can be used stand-alone portable GPS terminals (Model: KGPSM300). Application features: the special populations positioning through GPS positioning for children / elderly to provide a full range of activities trajectory tracking, Where are they now can know at any time. Can be set to the children / elderly guardian activities area, once you leave the area, will be notified immediately warning. When the elderly / children to go out to get lost, you can help the elderly / children get timely navigation services. For these elderly people, children and other people need to guard against lost, can be developed into watches, children's mobile phones and other products, such as morphology. For pet collars mode GPS positioning equipment can be designed for.