On-board computer data evaluation - aRNE

Basic functions

EPIS 4.0x on-board computers record important events and process operations in various types of files (logs) during operation. These are downloaded to a storage area in the depots for later analysis or control of driver behaviour or monitoring of operational data. For this purpose, the aRNE program has been developed to evaluate the logs from the EPIS 4.0x on-board computer. The program is so far single-user and is built on the WPF platform.

The aRNE software processes the data (logs) from the EPIS 4.0x on-board computer (audit logs and critical logs) and also uses data from SPRINTER software by remotely accessing its database for better filtering capabilities. The list of vehicles and establishments from EPCOMP is used for the evaluation. In addition, connection logs and radio logs generated for this program are used.

Basic functions of aRNE

The individual menus of the aRNE program are:

Program - Settings

The menu provides the setting of the data source and filtering options - i.e. setting up directories with vehicle logs, with connection logs and also selecting which vehicles to display, either by establishment or by your own choice.

Driver control

The "Driver Check" menu allows you to get an overview of the checked items - currently it is possible to monitor, for example, time overrun, stopping far from a stop, early departure, engine on while waiting, delay longer than 179 seconds, fast driving, driving without logging in, passing a stop on a signal and many others. These monitored data can be further extended.

Intermediate stop sections

The "Inter-stop intervals" menu displays the times between stops, i.e. allows you to view the average time it takes vehicles to cross between two stops in the selected interval. According to the picture, you can select the time range and the days of the week. When a specific hourly record is selected, a detail with the records from which the average was calculated will be displayed to the right of it.

Reliability of localisation

The "Localization Reliability" window evaluates the reliability of vehicle localization in the radio network - specifically, it determines the percentage of vehicles that are currently transmitting their location. A vehicle not transmitting its location is a vehicle that has not sent its location to the dispatch system for a selected period of time (e.g. 40 seconds). RDST logs from the SPRINTER dispatching software are used for this purpose. The following parameters can be set - time period, period length and interval length. The interval length determines the smallest period to be evaluated. If a vehicle is not logged for more than the selected period of time in this interval, it is not counted in the localized vehicles in this interval. The period length contains several intervals and its reliability is the average of the interval reliabilities.

Connection check

The "Connection check" window displays an overview of the connections, their resulting status and message details - the SW thus reads and displays the connections, their resulting status and the detail of the communication messages. The time period of the data can be filtered in the same way as the data in the driver check. The message detail is colour coded by vehicle, where the colour can be set in the vehicle list. This list also contains the vehicle number, line, course, driver information and the resulting connection status for the vehicle.