Abstract: In some embodiments, a method comprises obtaining a video stream of a portion of a geographic area, the video stream comprising a plurality of video frames, each of the plurality of video frames captured at a respective first time. Contextual metadata is obtained, the contextual metadata associated with one or more objects located in the portion of the geographic area at a second time, the second time being before each of the respective first times. The contextual metadata is inserted into one or more of the plurality of video frames, thereby causing the contextual metadata associated with the one or more objects to be overlaid on one or more corresponding portions of the one or more of the plurality of video frames.

Abstract: Systems and methods are provided in order to avoid ingesting the entire contents of one or more data sources. An object may be associated with one or more pieces/fragments of data that can be stored in different data sources. When a request for the object is initiated, a search for those pieces/fragments of data can be performed. Nodes associated with each data source may generate data queries appropriate for its corresponding data source, retrieve, and if needed transform the data into an object-based data structure. Any pieces/fragments of data that have been discovered and retrieved can be joined, e.g., by an application programming interface server, and forwarded to a requesting client or application. In this way, only data relevant to the object is obtained. Moreover, object versioning can be employed so that the most up-to-date data is obtained.

Abstract: A multiple purpose dump unit designed to be mounted on a vehicle for hauling, dumping, spreading and the collection of refuse as well as for distributing salt, sand and other aggregates. The unit has a single dump body with a sloping, fixed endgate and a longitudinally extending conveyor along the open bottom of the dump body, and the unit is provided with a spreader mechanism at the exit gate from the conveyor to facilitate spreading of salt, sand and other aggregates. The unit is pivotally mounted near its rear end so that it can be lifted by hydraulic cylinders for dumping, spreading aggregate, asphalt, etc. The dump unit can be sized so that the vehicle can navigate narrow streets and alleys and is mounted at a height and with sides of a height to meet the requirements for manual refuse loading.