Defining your requirements
A successful vision application usually begins with a clearly defined set of goals that have been established prior to installation and testing. If additional requirements are introduced, or requirements are changed as the project progresses, this could have a major influence on the success of the project. Adding functionality may require an increase in cycle time, or force the selection of a more powerful vision system.
Defining a list of all current and potential requirements in advance will enable you to make an informed and future oriented choice which may help to reduce the risk of a poor system selection. It is good practice to ensure there is spare processing capacity as its common for the application requirements to grow once the integration phase of the project is underway.
The following points should be considered prior to specifying and deploying a vision system:
- How many inspections are required per second?
- How fast are the parts moving?
- How large is the area of inspection?
- What level of accuracy is required?
- Do you need multiple views?
- Is colour identification needed?
- What actions do you wish to take based on the inspection results?
Special consideration should be given to a realistic definition of the required accuracy, as this has a massive influence on system cost.
Defining a requirement & test specification
Once you understand your needs it's then good practice to create a detailed specification. This should consider all the system constraints and also how the system will be tested which is often overlooked. To help the VDMA put together template specification guidelines in the form of the VDI/VDE/VDMA 2632 standard series. Its highly recommended to use this either for your own system specification or if you plan to use an integrator as it helps to consider all aspects of the system often overlooked. To help in creating a specification our European Imaging Academy run regular courses on how to specify a vision system based on the practices of this standard.
In the past, vision solutions were mainly realised by specialised, highly qualified system integrators. However over time, imaging has established itself as an industrial standard technology and the market now offers systems that allow users to solve simple tasks by themselves, of course following prior consulting.
We are ready to assist you whether or not you are able to solve your task based on our technology, or advise you as to which system integrator would be best suited for your application. No matter which solution you might choose, our specialists are there to support you.
The advantage of deploying a vision system using in-house resources is that you retain control over the system and you will be able to maintain and enhance the functionality when necessary. To support customers that wish to adopt this approach, we offer a number of services.
- Sample evaluation and feasibility services
- Training on-site or at our training centre
- Configuration advice
- On-site consulting via certified engineers
This approach has the benefit of building in-house knowledge that can support and evolve the system, as well as help in the deployment of future systems, with minimal investment.
For more complex applications or for situations with insufficient internal resources, we recommend a bespoke vision system that is developed, installed and maintained by a specialist integrator.
We are proud of our network of highly specialised, experienced system integrators who, combined, have implemented many thousands of machine vision solutions successfully for satisfied customers. If you choose to deliver your application with the help of a system integrator, we maintain an involvement in the ongoing project, providing advice and training for customers who wish to gain a higher level of system knowledge for maintenance and diagnostic purposes.