This equipment is designed as a data collection point for User information – position, alarms, messages and other information.
It is available in several options ranging from a simple position monitor to a full data acquisition monitoring point.
The central part of the system is the radio and GPS unit. These together provide positional information, which is transmitted to a central control system by a VHF radio. All configurations contain this option.
DGPS operation is available as an option. This uses the radio system to provide the DGPS parameters
The user may operate any of the alarm switches to indicate either an alarm or a fixed message to send to the central control system. The information arrives at the central control system as a priority message. The meaning of the signal is predetermined by the system.
The external alarm switches allow the equipment to be connected to remote contacts. When the contacts close, an alarm message is sent to the central control system.
With the use of a suitable terminal, the unit may be used to send and receive messages either from the central control system, or to another TDC system via the central control system.
External instruments may be connected to the system and the information transmitted to the central control system. This is a custom option for the instrumentation used.
ISS’s AVT system is a fully integrated Automatic vehicle & vessel location system comprised of three functional subsystems: the Mobile Unit, Base Unit, and the Mapping and Display subunit.
The mobile unit is a self-contained device integrating location & communication, with the capability to seamlessly interface to external mobile data message and status terminals, or other mobile computing devices such as a laptop PC, using a proprietary multi-processor architecture that supports the latest radio and GPS tracking services via radio, GSM and satellite networks.
The In-Track is an intelligent device that automatically switches between different media to ensure continued connectivity and cost-effectiveness.
The Base Unit is comprised of a Communication Controller connected to the Base Server. The Communications Controller transmits and receives data directly with each In-Track unit in the mobile fleet, as directed by the Base Server. The Base Server manages all fleet communication and configuration, acts as a messaging and data transfer gateway between base-side applications and mobile computers, and archives and distributes received vehicle location and status information (for the Mapping and Display System).
The Mapping and Display system consists of PC-based workstation running various real-time vehicle tracking (mapping), reporting, messaging, and mobile control and configuration software. Each workstation may be installed and configured with an appropriate sub-set of the available mapping, reporting, and configuration applications as dictated by the requirements of the user (dispatcher, manager, or administrator).
The Mobile System and Base system are linked via two-way wireless communications, allowing for real-time data transmission between the vehicles and the base. The Base system and mapping and display system are linked by the local and/or wide area networks.
The Base Server is responsible for managing the external communications with the vehicle fleet; configuring In-Track unit operational parameter; receiving, correcting, archiving, and distributing vehicle location and status information; and for providing a gateway between base-side applications and mobile terminals.
The Base Server Communications Software controls the polling and reporting of the mobile units based on a variety of configurable parameters (allowing individual, group, and sub-group polling and reporting capabilities). Further, it ensures that received data is error free, and distributed to the appropriate destination applications (real-time tracking, reporting, messaging, etc.) Current vehicle data is immediately distributed to the Mapping and Display workstation, and archived for future report generation.
In addition to data returned from each mobile unit, the ISS AVT solution may be configured to share location, status, and messaging data to and from and enterprise CAD system through a customizable interface, ISS has written interface programs specific to a number of such applications (using methods such as COM/DCOM, ODBC, TCP/IP sockets, CORBA, data queues in an AS/400 environment, network files, etc.)
The Base Server maintains fleet configuration parameters allowing the selection of active/inactive status, group assignment, and polling and reporting rates for each vehicle or group of vehicles in the fleet. Users with appropriate privileges may update these parameters from the Mapping and Display PCs using the Mobile Control Software.
Powerful mapping and display (GIS) PC’s in ISS AVT will provide operations personnel the capability to rapidly, geographically analyze the GPS information and make critical decisions. These computers are responsible for running the Geographic Information System (GIS), which displays data collected from the mobile units by the Communications Controller. They run the tools and controls that enable the operations personal to quickly adapt the information they are collecting and analyzing the views they are using to manage evolving situations.
The Mapping and Display system consists of a network PC-based workstation running various software applications:
Various combinations of the above applications may be installed on each individual workstation as desired. The assignment of user-permission levels allows access to appropriate sub-sets of the installed functionality.
The real time AVT software displays the current location and status for the vehicle/vessel fleet, along with address, route, and other attribute information, over both raster and vector-based maps (as desired). The use of a powerful GIS engine along with the incorporation of vector data allows for almost endless display and analysis possibilities. A wide variety of customizable functionality is available and is described below.
The vehicle icons may be configured to indicate (using colors, directional symbols, labels, and size) various vehicle attributes (such as ID, status, speed, heading, exclusion zone, etc.). All of the vehicle attribute data may be instantly queried and displayed in a pop-up box using a standard identify tool. Further, alarm and event notification may be set to notify the user of a status change for a particular vehicle.
The Mapping and Display software displays the vehicle data in one or more “map windows”. Each window can be set to display a particular area, route, stop, or address, or to track a specific sub-set of the entire fleet (from the entire fleet to individual vehicle). The auto-pan feature allows a specific window to automatically update the display to track the vehicles, routes, stops, and addresses specified in the windows display criteria. A window set to display an address or stop and a designated vehicle, for example, will automatically pan and zoom (in or out) to display both the address and the vehicle.
In ISS AVT, each map display window possesses a full-set of map manipulation and query functionality. Map manipulation tools and buttons are available to zoom, pan, and center the display on a particular vehicle, route, stop, or address. Additional tools are available to enable or disable labelling, to customize the map display according to user preferences, and to enter points and attributes (for incidents etc.). Map query options include the ability to locate an address, vehicle, or stop, along with the capability to identify the closest available vehicle(s) to any entered point, address, or incident.
Because Intelligent Solutions Systems uses a powerful GIS as the basis for both display and analysis, operations has the capability to perform complex “spatial query” analysis that capitalizes on the geographic referencing or correlation of the GPS location and velocity data collected with the base map. Our use of vectorized maps allows the user to analyze space and time components in entirety. Query capabilities are virtually unlimited.
All of the real-time tracking functionality is available through the menus, buttons, and tolls of the graphical user interface (which is easily customized to accommodate specific desires and requirements). Access to other installed Mapping and Display functionality (described below) is available from the graphical user interface.