Patent ReferencesSystem for telecommunicating vehicle operation data between a ground station and a remote data processing station Ship performance analyzer Method and apparatus for analyzing performance of electric-traction-motor powered vehicles and electrical operating components thereof Power supply for computing means with data protected shut-down Railroad communication system Vehicle performance monitor and method Apparatus for recording the speed of a vehicle Data collection apparatus and train monitoring system Route bus service controlling system Vehicle monitoring arrangement and system InventorsAssigneeApplicationNo. 367191 filed on 06/15/1989US Classes:455/456.1, Location monitoring340/870.41, Plural receivers360/6, RECORDING COMBINED WITH METERING OR SENSING702/187History logging or time stampingExaminersPrimary: Lall, Parshotam S.Assistant: Zanelli, Michael J. Attorney, Agent or FirmInternational ClassG06F 015/74AbstractA solid state event recorder having particular application to railroad locomotives has a plurality of interface modules to allow the collection of desired data over a period of time. Radio downloading of the data provided by a telemetry transmitter to wayside receivers is the primary way of downloading data. Alternative data downloading are provided by a removable memory module, a portable wireless data extractor and a laptop computer. The removable memory module is provided with its own backup battery power supply but normally derives its power from an inductive coupling to the solid state recorder. Data is read into the removable memory module from the solid state recorder via an inductive coupling, and data is read out of the removable memory module to the telemetry transmitter via another inductive coupling. Both the portable wireless data extractor and the laptop computer are used for maintenance purposes. The solid state recorder can be configured in a variety of ways and connected together as master and slave. For example, one recorder, acting as a master and functioning as the primary of operational recorder, can be connected to a second recorder, acting as a slave time synchronized with the first recorder. This second recorder can serve as a maintenance recorder for collecting long term data and trouble shooting a particular locomotive.Other References
Field of SearchVehicle-vehicle distance measuringRecording devices PERFORMANCE OF MULTIPLE FUNCTIONS OF STEAM AND GAS ENGINES Speed indicator or alarm CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) With particular receiver (e.g., ratiometer) Plural receivers RECORDING FOR SELECTIVE RETENTION OF A SPECIAL OCCURRENCE RECORDING COMBINED WITH METERING OR SENSING | |