What happened?
Starting in October, the revised DIN EN IEC 62676-4 standard will be available through DIN Media. According to the BHE Bundesverband Sicherheitstechnik e.V. (German Federal Association for Security Technology), this gives specialist planners, installers, and operators of video security systems (VSS) a structured process as well as measurable criteria for the planning, installation, and operation of such systems. The focus of the standard is not the technical specifications of individual devices, but rather the protection goal that a video security system is intended to achieve.
The Details
According to the BHE, the core principle of DIN EN IEC 62676-4 lies not in the performance of individual components, but in the overall application logic of the system. The standard emphasizes the need for systematic planning from start to finish and divides a project into ten key phases – from the initial inquiry through the security concept, planning, installation, testing, and acceptance, to ongoing maintenance. The aim is to clearly define responsibilities and create traceable decision-making processes.
This shifts the focus of the standard to the user's requirements. Rather than the question of which camera resolution is suitable, the key question at the start of a project is: What protection goal should the video security system fulfill? To answer this, DIN EN IEC 62676-4 provides for an Operational Requirements (OR) document. It describes the purpose of the system, the expected functions, and the required image quality. A site survey takes into account factors such as access points, lighting, environmental conditions, and the positioning of key components. Only on this basis are the system design, specification, and test plan developed.
Another central aspect of the standard concerns image quality: a high camera resolution alone does not guarantee a meaningful image. What matters is the appropriate pixel density for the respective protection goal. DIN EN IEC 62676-4 defines seven quality levels for this purpose: monitor, detect, observe, recognize, identify, inspect, and recognize details (as per the standard's terminology for "overview," "outline," "track," "perceive," "detect," "assess," and "examine" use cases). Each level is associated with a pixel density ranging from 20 to 1,500 pixels per meter. Pixel density does not depend solely on camera resolution – the lens, distance, viewing angle, lighting, and mounting location also influence the result. Test charts for low and high pixel densities are available for verification, supporting objective and repeatable assessment during installation, commissioning, and acceptance.
The requirements of the standard do not end with the handover of the system. According to the BHE, documentation includes the security concept, operational requirements, test plan, site survey, system planning, site plan, as well as operating and maintenance documents and the VSS operations log. In this log, the operator can record maintenance activities, faults, and other operational events in a traceable manner.
Context
For the security industry, DIN EN IEC 62676-4 marks a shift in perspective: away from isolated device selection and toward a holistic security concept. Particularly in complex facilities – such as commercial properties, banks, or public institutions, which are often also equipped with deposit safes, offertory boxes, or Wardhub solutions – it repeatedly becomes apparent that technically high-quality individual components fail to realize their full protective potential without a well-thought-out overall concept. The standard creates a unified framework here, aimed at reducing planning errors and ensuring the traceability of decisions throughout the entire lifecycle of a video security system.
The shift from a pure megapixel comparison to a pixel density approach is particularly relevant. This approach makes clear that the quality of video surveillance does not depend solely on camera technology, but on the interplay of all on-site factors – an aspect that is often underestimated in practice.
Practical Tips
- Begin projects consistently by asking about the protection goal, not by selecting a camera.
- Document operational requirements (OR) in writing early on to clearly define the purpose, functions, and required image quality.
- Conduct site surveys in a structured manner and document access points, lighting, environmental conditions, and mounting positions.
- Determine the appropriate quality level (from monitoring to detailed examination) based on the required pixel density, rather than relying solely on camera resolution.
- Consistently use test charts for pixel density verification during installation, commissioning, and acceptance.
- Maintain documentation throughout the entire lifecycle, including the VSS operations log for maintenance and faults.
Outlook
With DIN EN IEC 62676-4 becoming available through DIN Media starting in October, market participants gain binding guidance for future projects. Specialist planners, installers, and operators would be well advised to familiarize themselves early with the ten project phases and the new quality levels in order to adapt tenders, acceptance procedures, and maintenance processes accordingly. Further information on the revised standard is available online from the BHE.
