traccar
    with implemented Protobuf protocol

Web page - http://www.traccar.org

Author - Anton Tananaev ([email protected])

SUMMARY:

Traccar is open source server for various GPS tracking devices.
Project is written in Java and should work on most platforms with
installed Java Runtime Environment.

LICENSE:

Apache License, Version 2.0

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.