Data Frame
Data frames are envelopes that are transmitted and processed through a positioning model. These frames are created by source nodes (e.g. sensors) and contain one or more data objects needed to process the frame.
A frame should contain a single reading of a sensor (such as an image of a video stream or current acceleration) and not permanent or calculated information.
Creating data frames
OpenHPS is a framework that processes sensor information to retrieve a position for one or more data objects. These objects are contained within an envelope called a data frame.
ts
import {DataObject ,DataFrame } from '@openhps/core';constmyObject = newDataObject ("bsigner", "Beat Signer");constframe = newDataFrame ();frame .addObject (myObject );
A basic data frame supports the addition of objects. Extended versions of this basic data frame also add additional sensor data.
Creating a custom data frame
Similar to data objects, decorators have to be used to indicate a serializable data frame.
ts
import {DataFrame ,SerializableObject ,SerializableMember } from '@openhps/core';@SerializableObject ()export classQRDataFrame extendsDataFrame {publicrawImage : any =undefined ;}