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“ We wanted a solution that was maintained, tested and supported by a company,” explains Jochen Vajda, Chief Architect VDS.

DAIMLER AG CARS PROFESSIONAL

They selected HiveMQ due to the professional enterprise support and maintenance provided by HiveMQ. When looking for a MQTT broker, Daimler considered solutions such as Mosquitto or RabbitMQ. In addition, unlike HTTP, MQTT also allows for broadcast messages which is useful when the VDS needed to communicate with all the test devices.Ī Reliable Partner Providing Enterprise Support and Maintenance Daimler considered AMQP and OPC-UA but found these were too complicated and heavyweight for their requirements. MQTT and HiveMQ also had the advantage that it was a simple protocol with minimal overhead so it was fast, efficient and easy way to share information between the factory floor and the enterprise IT systems. Daimler saw the benefits of MQTT pub/sub protocol and Quality of Services levels to ensure a test device continues to behave properly if the network connection is dropped and reconnected. Network access is not always guaranteed on the factory floor since network stability can be an issue and there may be some blind spots in the factory.

However, the test device will move around the factory floor and could sometimes lose the network connection. As mentioned, if the VDS goes down for more than 10 minutes then the assembly line may stop. HiveMQ Ensures Reliable Messaging to and from Factory Floorĭaimler selected HiveMQ and MQTT since they needed a reliable message platform to operate in their factories. There are 10,000 test devices that connect to the VDS and send 166 messages/second, for a total of nearly 470 million messages/month. The VDS has been rolled out in 24 factories around the world.

These microservices act as front-ends to various information databases and enterprise IT systems that are required to fulfill the VDS commissioning and testing of the automobile.

DAIMLER AG CARS SERIES

On the server-side, a series of microservices connect as MQTT clients with the HiveMQ broker. The VDS also generates the test documentation required for the regulatory requirements of the destination country for the vehicle.Įach instance of the VDS includes multiple test devices on the factory floor that are connected with a HiveMQ broker located in the factory. This is because the VDS fulfills some core functionality in the manufacturing process for E/E components, such as calibrating sensors controlled by an ECU, flashing new firmware, personalizing the key to the car and testing to make sure each ECU works properly. If the VDS goes down for more than 10 minutes, the manufacturing line may stop. The Vehicle Diagnostics Systems (VDS) is a critical part of the manufacturing process.

DAIMLER AG CARS SOFTWARE

Non-stop Manufacturing Process Requires Reliable Software Infrastructure Daimler uses HiveMQ as the core infrastructure service for VDS to manage the information flow between the test devices on the factory floor and the server-side enterprise IT systems.

Daimler has created the Vehicle Diagnostics System (VDS) to coordinate the production process of commissioning and testing all the control units that are added to a car.

There are 70-100 electronic control units (ECU) in an automobile, which operate features such as brakes, lights, locks, entertainment system, etc. It is rock solid, completely reliable."Īn important part of the Daimler manufacturing process is the configuring and testing of the electronics that are used to operate a Mercedes-Benz. "We have been running the VDS using HiveMQ for 4 years and the HiveMQ broker has not gone down. Daimler customers expect their automobiles to be of very high quality and perform flawlessly. Manufacturing quality products is a core value of the Daimler brands.

DAIMLER AG CARS DOWNLOAD

Download Case Study Daimler Relies Upon HiveMQ During Automotive Manufacturingĭaimler AG is a German automotive manufacturer well known for its premium brand Mercedes-Benz cars, Daimler Trucks and Daimler Buses.