CARRIDA SDK: The versatile and powerful LPR library with make&model recognition

A special feature of CARRIDA is the hashing procedure implemented in the software engine: Captured license plate strings are replaced immediately and directly on the edge device with a unique, non-reversible hash code. This ensures that the data is stored and processed completely anonymously. In addition, only small amounts of data need to be transmitted.

With a network of such smart traffic sensors, travel time measurements and traffic route surveys can be performed for individual vehicles. Specifically for this, CARRIDA supports MQTT for publishing reading results and images. The protocol enables connection to other IoT devices and integration into smart city networks.

To further improve data security, public key authentication for FTP actions and certificate-based authentication for HTTP data transfer are employed.

CARRIDA uses Deep Learning for Make and Model recognition and added functionalities. This means that the computer itself “learns” how to recognize a particular vehicle type. Therefore it is possible to run much more complex and thus more reliable recognitions. This was introduced with software version 4.3. Like all CARRIDA software, it is hardware- and manufacturer-independent.

Our Make and Model recognition offers even more security, but also additional functionality. In addition to the number plate, we are able to check whether the vehicle type matches the number plate. It is also possible to categorize vehicles whose number plates are not stored in the system itself. This allows intelligent traffic management systems and parking providers who do not know the majority of their customers to increase their efficiency enormously.

Take the lead with best in class LPR recognition and features!

• No complicated and labour-intensive construction: The initial setup is done just within a few steps.
• Free image and video format selection: We support all common formats, whether from file or memory.
• Hardware independent: Integration of IP, USB, GigE cameras, but also analog camera models (via frame grabber).

• Can be used worldwide: license plates from all countries of the world are recognized with high accuracy (>99 %).
• Also special formats: Our software easily identifies two-line license plates.
• No limit: No matter how many vehicles are in the picture: Every single one is recognized.

• Live streaming: The data is not only on the camera, but always exactly where you need it.
• Security compliance: Hashing procedure directly in the device, for completely anonymized data processing and transmission.
• Only for authorized persons: Access to the software is protected by software protection or Crypto-Dongle.

• Typical reading accuracy: >99% (including damaged or bent license plates)
• Processing time: approx. 30ms (depending on platform)
• Quality parameters can be called up individually for each number plate and/or character read
• Advanced angle correction in two planes
• Use of special neuronal technology, which is constantly being developed

The core functionality of the CARRIDA Engine is to detect and read vehicle license plates and provide them as text strings to your application. This main function is similar to optical character recognition, but it is tuned and optimised to the special structure and syntax of license plates text.

At the same time, we are constantly adding new powerful functionalities that can be utilized either additionally or independently from the ANPR job:

Should the term end after a certain period or should it rather end after a fixed number of vehicle detections? Or do you simply want to make a spontaneous decision? You decide!

According to a monthly rhythm defined by you, per vehicle detection or once again completely different? You decide!

Better a cloud solution than local software? Do you have special requests? Contact us – we will find a customized solution for you!