How can a site use computer vision to read analog gauges, dials and meters from photos or cameras instead of sending someone on a reading round?

---
title: "How to read gauges and meters with computer vision"
description: "Start with one round of readings that is taken by hand today, such as pressure gauges in a plant room or utility meters on a route, and list each gauge with its location, units and normal range. Fixed cameras or phone photos capture each dial at set times, and computer vision finds the gauge, reads the needle or digits and records the value with the time and place. Readings outside the normal range, or that the model is unsure about, go to a person to check against the image before any alarm, log or bill is changed, and the confirmed images are used to improve the model."
url: https://lidvizion.ai/answers/how-to-read-gauges-and-meters-with-computer-vision/
site: Lid Vizion
index: https://lidvizion.ai/llms.txt
---

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# How can a site use computer vision to read analog gauges, dials and meters from photos or cameras instead of sending someone on a reading round?

Start with one round of readings that is taken by hand today, such as pressure gauges in a plant room or utility meters on a route, and list each gauge with its location, units and normal range. Fixed cameras or phone photos capture each dial at set times, and computer vision finds the gauge, reads the needle or digits and records the value with the time and place. Readings outside the normal range, or that the model is unsure about, go to a person to check against the image before any alarm, log or bill is changed, and the confirmed images are used to improve the model.

## What this means in practice

- Start with one manual reading round and list each gauge, unit and normal range.
- Capture each dial at set times from a fixed camera or phone.
- Read the value and record it with time and location.
- Send out-of-range or uncertain readings to a person with the image.
- Use confirmed images to improve the model.

## How Lid Vizion approaches it

We start with the business decision and operating context, define ownership and measurable milestones, then use configuration, integrations, automation, or custom software only where each earns its place.

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- [How can a city, county or utility use cameras on vehicles that already drive the routes to find potholes, damaged signs and other street defects sooner?](https://lidvizion.ai/answers/how-to-find-road-and-street-defects-with-computer-vision/)

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