AI Features: Prism Intelligent Tracker and Prism Recognition for PLT 400-22 (Nuron)

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The PLT 400-22 (the PLT 400 powered by Hilti's Nuron battery platform) introduces AI-assisted features designed to improve prism recognition and target tracking. These features are available in the Tool and Connection Settings menu.

How to Know if your Tool is Compatible with AI Features

Certain AI features (AI Prism Intelligent Tracker and AI Prism Recognition) are only available when the following conditions are met:
  • PLT 400-22 in use
  • PLC 600 (2) - generation 2 - tablet or higher in use

Identifying a "PLT 400-22" Tool

A tool is considered a PLT 400-22 model if it:

  • Uses a Nuron battery, or
  • Displays "PLT-400 02" (2nd generation) beneath the model name on the identification sticker.

PLT 400-22 tools are compatible with both the B-22 55 and B-22 85 Nuron batteries.

Nuron lithium-ion battery B22-85
Nuron lithium-ion battery B22-55

Identifying a Generation 2 (or Newer) PLC 600 Tablet

To determine which version of the PLC 600 tablet you are using, remove the battery and check the identification sticker located behind the battery compartment. The version information is listed on this label. Look for PLC 600 (2) or newer to utilize these AI features.

Enabling AI-Features in Settings

Within the Tool and Connection settings, the AI Features can be accessed:
These features can also be accessed from the quick drop-down menu by clicking on the head unit at the top of the screen:
 
Enabling these features activates the tablet's high-performance mode, which increases processing power but reduces battery runtime. A notification is displayed when high-performance mode is enabled.
While active, the battery icon in the top right corner changes to orange, indicating that high-performance mode is running.

AI Intelligent Prism Tracker

The Intelligent Tracker helps ensure that the PLT remains locked onto the correct prism or target.

Using AI-assisted target recognition, the system continuously verifies that the correct prism is being tracked and can identify situations where nearby objects may interfere with tracking.

This is particularly useful when working near reflective objects such as safety vests, vehicles, glass surfaces, or other materials that may affect target detection. It is also effective at maintaining connection when moving quickly with the prism in close range to the head unit.

When the feature is enabled, a green box is displayed around the prism in the camera view, indicating that the target has been identified and is being tracked.

If the square around the prism turns blue, it indicates that there is other reflective material in the area, but the software is able to maintain connection with the prism through image recognition.

Important Notes Regarding Prism Tracker:

  1. The square box around the prism must be a green before a measurement can be taken (user must wait for the tool to fully lock on the prism).

  2. The prisms supported for AI Prism Tracker are Hilti 360° prisms (POA 20   and POA 25 ).

  3. To reduce battery load, AI Prism Tracker will turn off automatically in the background when the distance to the target is >15m (jobsite reflection disturbance significantly reduced at that distance).

  4. Intelligent tracker is unavailable if the tool is connected via Bluetooth or radio (camera functionality is required).

AI Prism Recognition

Prism Recognition helps prevent measurement errors caused by selecting the wrong prism type. If the selected prism type does not match the detected target, the system will suggest changing to the recognized prism type.

You can then choose one of the following options:

  • Discard the measurement and switch to the detected prism type
  • Keep the measurement and continue using the currently selected prism type

This feature helps improve measurement reliability and reduces the chance of using incorrect prism settings.

 

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