Zigna
Signals into intelligence.

Zigna is the new name for what we have been developing as RainVision. The technology has grown beyond a single product, so it now has its own identity. And it all starts with one thing: rain.

Formerly RainVision  ·  Built on EP 3 855 643 B1

Rain weakens a radio signal.

When rain falls between two communication points, the water droplets weaken the signal travelling between them. The receiver detects this change in signal strength. The weaker the signal, the more rain may be along the path.

−3.2 dB RECEIVED SIGNAL STRENGTH ILLUSTRATIVE · NOT LIVE DATA

But rain isn’t the only thing that can weaken a signal.

Equipment changes, interference, and even normal atmospheric conditions can affect it too. If we treat every signal drop as rain, we could report rainfall when there is none.

EQUIPMENTINTERFERENCE ATMOSPHERERAIN?
EQUIPMENT INTERFERENCE ATMOSPHERE RAW ATTENUATION · UNCALIBRATED

Patented technology, enhanced by AI.

Our patented technology compares signal changes with trusted weather data to identify what is caused by rain and what isn’t. AI helps improve this process over time and opens the door to other uses beyond rainfall.

EUROPEAN PATENT SPECIFICATION
EP 3 855 643 B1
Method and system for localizing satellite terminals
12.4 mm/h CALIBRATED RAINFALL ESTIMATE

One link is a gauge.
Thousands are a radar.

Every satellite terminal and telecom tower already in place can become a rainfall sensor. Together, they create a live picture of rainfall across wide areas, including places traditional weather radar cannot reach.

Existing infrastructure No new radar towers

From one technology, four products.

12.4 mm/h
01

Observed rain data

Every terminal and tower reports the rainfall measured along its own signal path.

02

Rain radar layers

A continuous map, refreshed every five minutes, including where radar never reached.

03

Virtual rain gauges

Rainfall at any coordinate, solved from the links around it. No instrument on the ground.

NOW +2H
04

Nowcast

The same field run two hours forward, with a confidence value travelling alongside it.

Each new reading adds to the bigger picture.

Communities first. Then everyone else.

01 · COMMUNITIES

The places the rain hits hardest.

Local governments, disaster responders and the people they serve need to see rain coming. Reliable rainfall intelligence should reach them first, especially where traditional weather infrastructure was never built.

Fisherfolk Farmers Schools Coastal towns
02 · BUSINESSES

The data, without the radar.

Rain moves operations, assets, supply chains, agriculture and infrastructure. Radar networks are expensive to build and maintain. Zigna delivers rainfall intelligence as a service, over networks that already exist.

Utilities Ports Agribusiness Telecoms

Two deployments, in progress.

Calibration phase

Nationwide rain monitoring in an ASEAN country.

Delivered with a satellite operator, covering the country from its existing terminal network. Calibration against trusted observations is under way.

Assembly phase

The Zigna Box, for the Philippines.

Our own signal hardware for client areas here, assembled from available components with the calibration software built around it. An alternative to buying a radar.

We’re not building more infrastructure. We’re finding new ways to make better use of what’s already there.

Zigna
Signals into intelligence. Rain is where we start.

The Zigna technology roadmap.

Zigna explores how existing communication signals can be used to understand changes in the physical world. We begin with rainfall measurement and expand into environmental intelligence, with movement sensing as a future research direction.

01 · RAIN
Available now

Measuring rainfall through signals.

Detect rain and estimate its intensity and accumulation from changes in satellite signal strength.

02 · ENVIRONMENT
In exploration

Understanding environmental changes.

How radio signals respond to moisture, cloud water and other atmospheric conditions.

03 · MOVEMENT
Future research

Detecting movement through signals.

How reflections and frequency shifts can reveal movement and changes in physical surroundings.

Let’s explore what rainfall intelligence can do at scale.

From network operators to national agencies and major cities, Zigna helps turn existing communication infrastructure into a source of rainfall intelligence. We can explore the potential coverage, implementation requirements, and opportunities in your territory.

Built on
European Patent EP 3 855 643 B1 · Method and system for localizing satellite terminals
Signal sources
Satellite terminals, telco towers and the Zigna Box
Status
ASEAN deployment in calibration · Zigna Box in assembly

Figures and charts on this page are illustrative, not live measurements.

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