New Hardware · Launch

Metrici MultiController
with Wiegand Protocol.

A multipurpose LAN controller for access control, traffic management, and security scenarios.

Wiegand Protocol (MMCW)
2 Digital Inputs
2 Digital Outputs
WiFi + Ethernet
Metrici Integration
Introduction

A new hardware product
from Metrici.

Metrici, the renowned Romanian AI specialist in video analytics, improves its hardware offering with a new product. The company launches Metrici MultiController with Wiegand Protocol implemented (MMCW).

This LAN controller is an in-house developed product with Wiegand Protocol implemented as a plus — a multipurpose tool for security, traffic management, and access control scenarios.

Organizations requiring large-scale access control installations, whether in terms of advanced functionality, number of doors/barriers/levels, or number of credentials, now have a new option. Metrici MultiController with Wiegand Protocol has the ability to manage a large number of credentials and users.

It features a powerful processor optimized for handling large volumes of user credentials, communicating with both the Metrici database and interface as well as a Wiegand Central Command Station.

Benefits of MultiController include easy integration, use of existing ID badges for a unified badge solution, individual settings per employee, remote management from any network computer, and energy, cost, and time savings.

Metrici MultiController — Front
MultiController

Front view

Metrici MultiController — Back
MultiController

Back view

How It Works

Multipurpose by design.
Two scenarios, one device.

As the name suggests, the device is multipurpose. It has two digital inputs and two digital outputs, in addition to the implemented Wiegand Protocol. Powered by a robust processor, it was designed for diverse scenarios.

On one hand, it can be used for its Wiegand protocol and integrated into access control scenarios, working alongside any Wiegand central station hardware and wired connections. On the other hand, it can function as a traditional controller using its digital inputs/outputs and connectivity options.

Also, Metrici MultiController has WiFi and Ethernet connection and can be linked to the Metrici database and Interface in addition to a Wiegand Central.

MultiController · Key Features
1
Two digital inputs for sensor and loop connectivity
2
Two digital outputs for barriers, traffic lights, and external hardware
3
Wiegand Protocol (MMCW) for access control integration
4
WiFi and Ethernet connectivity for flexible deployment
5
Powerful processor optimized for large credential volumes
6
Full integration with Metrici Database and Interface
Scenario 1

Detection & Control.
Trigger, command, respond.

In the first scenario, Metrici MultiController with Wiegand Protocol can be connected to two inductive loops or sensors to trigger Metrici engine detection. In this scenario, it can also control up to two barriers, two traffic lights, or other external hardware via its two digital outputs.

When communicating with the Metrici database and interface, it receives commands to act — or not act — on specific detected license plates.

For example, it may receive a command to turn a traffic light red if a car lacks parking access rights, or change a street light color when more than X vehicles are queued.

Real-world example: A parking lot entrance detects a vehicle → Metrici Engine reads the license plate → Controller receives a command from Metrici Interface → If the plate has access rights, the barrier opens. If not, the traffic light turns red and the vehicle is redirected.
Scenario 2

Wiegand Access Control.
License plates as credentials.

In the second scenario, MMCW leverages its Wiegand capabilities. When a license plate is detected, the Metrici Engine sends a Check Action request to the controller. The controller then queries the Metrici Database for the corresponding Wiegand ID.

If the license plate has a Wiegand ID in the Metrici database, the controller receives it and forwards it to the Access Control Central Command, which decides whether to act. This action could include opening a barrier or door, activating external hardware, or executing any other command.

If the license plate has no Wiegand ID or lacks area access rights, no action is taken.

Metrici MultiController — Down Side
MultiController

Down side view

Metrici MultiController — Up Side
MultiController

Up side view

Technology

What is a Wiegand Device?
The technology behind the protocol.

Wiegand refers to the technology used in card readers and access sensors — a wired communication interface between a reader and a controller. Wiegand technology is commonly found in access cards, fingerprint readers, and other data-capturing devices.

This system is a wired communication interface that operates between a reader and a controller. Usually, Wiegand technology is found in cards, fingerprint readers, or any other data-capturing devices. It is commonly used in access control applications.

In a normal situation, a Wiegand reader or sensor is used to pick up the information on a Wiegand device. These pieces of information may include:

  • Credit card numbers
  • Bank account numbers
  • Employee identification information
  • Criminal records
  • Medical histories

This information is incredibly difficult to counterfeit or duplicate.

Metrici MultiController communicates in 26-bit Wiegand protocol. 26-bit is the encoding used by readers and proximity credentials — the industry-standard format for access control systems. The data encoded using this format offers a huge amount of possible facility codes and unique card numbers, keeping the data secure in the Wiegand system.
Applications

Where Wiegand devices
are commonly found.

Access Badges & Keycards

Employee access badges, keycards, and common access cards for office buildings and institutions.

Office Buildings

Multi-tenant office buildings requiring controlled entry for employees and visitors.

State Institutions

Government facilities and state institutions with strict access control requirements.

Access Control Systems

Dedicated access control panels and central command stations for buildings and campuses.

Smart & Proximity Cards

Smart cards, proximity cards, and credential-based identification systems.

Physical Security

Engineering and physical security systems requiring reliable credential verification.

Use Cases

Beyond access control.
Time tracking, unified badges, and more.

Companies can also use the device as an employee time-tracking add-on. Since many companies already use Wiegand-based cards for employee access, MultiController with Wiegand Protocol adds an extra layer of security and provides a comprehensive view of movement in and out of the facility.

A single Wiegand interface can be used for the entire location, or this one alongside the Metrici Interface.

Wiegand IDs used in Metrici can be imported in bulk or copied individually from a Wiegand Access Control Central Command. Metrici can also generate virtual cards assigned to specific license plates.

Unified badge solution: Use existing Wiegand-based employee cards alongside license plate recognition. One interface for the entire location, or combine with Metrici Interface for enhanced functionality.
History

About Wiegand.
The man, the wire, the protocol.

John R. Wiegand moved from Germany to the United States in the 1930s to study piano and choral conducting, but later became an engineer.

Wiegand wire, patented by Wiegand in 1974, is composed of a magnetic iron-alloy which surrounds a softer inner core. When passed through a magnetized field, the two layers magnetize and switch polarity, creating a voltage pulse — and these voltage changes are easily detectable.

In the late 1970s, Wiegand and his business partner Milton Velinsky developed a card using Wiegand wires for access control purposes.

The Wiegand format is defined as a series of binary data transmitted over two output wires. The industry standard for the first decade — and still the most used today — was a 26-bit format. The Wiegand interface remains the standard convention for the transmission of data from any device (card, biometric, or PIN reader) to an access control panel.

Ready to deploy MultiController?

Metrici MultiController with Wiegand Protocol — multipurpose, powerful, and fully integrated.

Request a Demo → Where to Buy
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Metrici AI Solutions SRL is a Bucharest-based company, founded in 2010. Metrici is our brand name for advanced video analytics solutions, designed to meet the needs of businesses and organizations. Our passion for technology and expertise in computer vision are used by the best partners for making a better place to live in, a safer and smarter city. With one of the widest range of applications based on video analytics and AI technologies, Metrici ranks among the leading companies in the world. Be assured that every software release represents our most advanced development to date as Metrici keeps innovating in accurate recognition.

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