Data Download

The Data Download feature in the Hydrus web UI is used to download a variety of data types, including mission parameters, system logs, video recordings, and images to your local drive.

Note: To improve download speed, use a direct connection via the Hydrus AP, and disable established Hydrus network connections.
This will reduce network congestion.

Session Payload Breakdown

Session payload data is organised into separate categories: ANPP Data, Configuration, Logged Data, Mission Data, Video Recordings and Image Captures. This allows for quick and easy identification and download of the specific data is required for analysis, troubleshooting, mission replication, or review.

Payload	Description
ANPP Data	The Advanced Navigation Packet Protocol (ANPP) is a binary protocol that is designed to provide high error checking, efficiency, and safe design practices. It is used across all existing and future Advanced Navigation products. The ANPP data folder contains information related to the Battery Management System (BMS), INS Components, and Setpoints. BMS Data: This data provides information about the battery's state, including its charge level, temperature, and overall health. INS Components: This data includes information about the Inertial Navigation System (INS) components, such as accelerometers, gyroscopes, and magnetometers, which are used to determine the device's position and orientation. Setpoints: These are the target values or ranges for system controls. For example, a setpoint might be a specific speed or altitude that the Hydrus device is programmed to maintain.
Configuration	This folder contains mission data recorded from the parameters set by the user during mission planning. This data can be downloaded and reused for other missions or sent to other Hydrus units. The configuration data can include: Mission Parameters: These are the specific settings and instructions inputted by the user for a particular mission. They can include things like waypoints, altitude settings, speed settings, and more. User Preferences: These are settings related to the user's preferences for how the Hydrus device operates, such as display settings, alert settings, etc.
Logged Data	This folder contains .bin files which are not relevant to the customer. These files record data for Advanced Navigation to investigate in case of faults or stoppages with the Hydrus device. The logged data can include: System Logs: These are records of system events, such as system startups, shutdowns, errors, and other significant events. Diagnostic Data: This data can help identify any issues or malfunctions with the Hydrus device. It can include things like sensor readings, system statuses, and error codes.
Mission Data	This folder contains a text log file with status logs of what happened during the mission, the mission name, start times, and the mission programmed json file. The mission data can include: Mission Logs: These are detailed records of the mission, including start and end times, waypoints reached, and any significant events that occurred during the mission. Mission Programmed JSON File: This is a file in JSON format that contains the programmed instructions for the mission. It can be used to review the planned mission or to replicate the mission on another Hydrus device.
Video Recordings	This folder contains images and videos from the mission, available for download in MP4 format. The video recordings can include: Flight Footage: This is video footage captured by the Hydrus device during the mission. It can be used for review, analysis, or sharing.
Image Captures	Still Images: These are individual images captured during the mission. They can be used for analysis, reporting, or sharing.

Download Procedure

Open the Hydrus web UI Main page.

Hydrus web UI Main Page
Click Download Session Data.

Hydrus web UI Download Media Selection
On the Sessions page, click the session to be downloaded in order to expand it. Then proceed with downloading data according to the following options:
- Download all session data: If you wish to download all the data for a specific session, click the click the Download button on the corresponding row of the session.
- Partial download: If you wish to download only a portion of the session data (ANPP Data, Configuration, Logged Data or Mission Data), click the Download button on the corresponding row.
- Download selected assets: If you wish to download one or more individual log assets only, first click on the data category to expand it and show its contents. Then check the checkboxes next to the assets that you wish to download followed by the Download Selected Assets button.
Session Data Download - Payload Breakdown

View images

You may preview images from a mission and download selected images.

Select: Menu > View -> Session Manager, then select the image icon for the mission you are interested in:

Select a mission's image icon to open up a gallery of images for the mission.

Image Gallery: Select images to download.

Images from the gallery can be selected and downloaded.

Or an individual image can be selected into a popup preview.

Selected image for popup preview

Deleting Sessions

Note: Deleting a session will permanently remove all data associated with the session and cannot be undone. Make sure to double-check your selections before confirming deletion.

Deleting Individual Sessions: To delete a specific session, locate the session to be removed in the list and click on the Delete option next to it. A confirmation dialog will appear, asking you to confirm the deletion.

Deleting Selected Sessions

Deleting All Sessions: To delete all sessions, navigate to the top of the session list and click the Delete All button. A confirmation dialog will appear, asking you to confirm the deletion. Note that this action cannot be undone, ensure all necessary data has been backed up before proceeding.

Deleting All Sessions

Note: It's important to be aware that if the storage capacity of Hydrus is reaching capacity, it could potentially lead to an unsuccessful mission. Therefore, it's recommended that older session data be cleared out before initiating new missions.

Deleting Multiple Sessions: The multi-select feature allows for efficient management and deletion of multiple sessions.

Click the Delete Multiple button to enable multi-select mode.

Delete Multiple Sessions

Once multi-select mode is activated, checkboxes will appear on the left side of each listed session.

Session Selection

Click the checkboxes corresponding to the sessions you wish to delete. To select all sessions, click the Select All button. To deselect all sessions, click the Select None button.
After making selections, scroll down to the bottom of the page and click the Delete button. A confirmation dialog will appear, asking you to confirm the deletion of the selected sessions.

Confirm Deletion of Multiple Sessions