![]() For example, the router sends latitude and longitude of each vehicle regularly but if a vehicle isn’t moving, it doesn’t make sense to clog the network with this data. GST has worked with LASD and AirLink® routers for years, and has developed many custom functionalities for LASD. Working closely together, GST and Sierra Wireless were able to manage a seamless transition from old routers to the new MG90 at LASD. The primary goal for LASD was to ensure the mapping application remained at its full service level, providing deputy safety throughout the integration process. A mix of old and new hardware involved different data types and formats and with both datasets coming in, GST worked diligently to ensure the data flowed without interruption and combined properly with the databases, making a successful migration. In addition, since deployment would take place over several months, the team needed to ensure that new hardware could run in parallel alongside the existing system. LASD needed to ensure that the migration to the new router technology would be seamless with the existing network and server infrastructure. The router switches traffic based on user-defined criteria and signal strength, providing high availability connectivity for field deputies anytime, anywhere, and does this switching transparently. ![]() In 2019, LASD acquired the latest generation Sierra Wireless routers (Airlink MG90) for their 3,000 vehicles. GST’s server is also resident in LASD’s data center, and the integration between the AirLink and GST systems is transparent, allowing the systems to share GPS location and providing storage of all call information. The AirLink® Mobility Manager and AirLink® Connection Manager allow real-time management of the fleet and end-to-end security of all data transmission. LASD hosts its own on-premises management system in its data center. The router connects applications over the best available network, with access to FirstNet™ cellular as primary and T-Mobile as back-up, and provides Wi-Fi connectivity when the vehicle is within range of the station hot spot, which helps with large software updates. In each vehicle, an cellular router manufactured by Sierra Wireless, takes care of wireless connectivity for each application, including the AVL system, laptops, and license plate recognition (ALPR) systems. GST maintains the system and does custom development for LASD. LASD has been using this system for over 12 years. Besides providing deputies with in-vehicle mapping, the AVL system enables command staff and field deputies to know the exact location of resources across its jurisdiction, enabling quicker response to calls and operational awareness. On the vehicle mobile data computer (MDC), a GST digital map application showing the location of the sister vehicles assists deputies in their response to an incident or location. Calls coming into 9-1-1 go to the CAD system and then to an automated vehicle location (AVL) system provided by GeoSpatial Technologies (GST) that displays incident and vehicle locations, status, and critical information. LASD relies on a Computer Aided Dispatch (CAD) system to deploy resources across its 4,000 plus square mile service area.
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