Video surveillance: plan the service and costs
Video should provide usable images for a defined purpose. Equipment, installation and lawful use belong together. A clear scope makes new systems, expansion and support comparable.
Define the purpose of the images
An entrance overview, recognizing a person and checking an event require different images. Describe the purpose and actual areas. Camera resolution alone does not determine whether images will be useful.
Angle, distance, lighting and movement affect results. Have the expected image quality explained for the actual location and checked at handover. A camera automatically guarantees neither admissible evidence nor burglary prevention.
Separate new and existing systems
New planning, expansion, replacement and maintenance need different quotes. For existing systems, state actual camera count and known equipment or software. Expansion needs compatible connections, storage and operation.
New camera counts follow areas and purpose. Ask for justified mounting positions and coverage rather than buying as many as possible. Multiple locations need clear responsibility and access arrangements.
| Assignment | Check |
|---|---|
| New | Plan areas and image goals |
| Expansion | Compatibility and capacity |
| Replacement | Existing system, cabling, transition |
| Maintenance | Affected equipment and symptoms |
Assess indoor, outdoor and low-light use
Outdoor use needs suitable housings, fixings and cable routes. Backlight, darkness and reflections can reduce usability. Ask for test images matching conditions; daytime footage says little about nighttime performance.
Check network and power. Wireless is not reliable everywhere; cabling can be a significant cost. Night vision still gives no permission to capture unjustified neighbouring areas.
Separate viewing, storage and response
Live viewing and recording are distinct functions. Define storage location, capacity, deletion and failure handling. Capacity depends on factors including quality, recording mode and necessary duration. Arbitrarily long retention is not an advantage.
Remote access, permissions and updates belong in operations. Cloud storage may add subscriptions and processing. A notification is not human alarm verification or attendance; those need separate agreement.
Limit purpose and coverage lawfully
Images of identifiable people are personal data. Assess necessity, proportionality, transparency, access and retention. Own property, neighbours, shared spaces and public areas differ. A sign alone does not make every recording lawful.
Workplace video must not be used for targeted behaviour monitoring. Other purposes need specific assessment and appropriate design; employee consent does not resolve every issue. Masking is not general legal permission either.
Compare installation and operation
Compare matching areas and image objectives, not only camera counts. Allocate hardware, mounting, cabling, storage, setup and training. A cheap camera may need extra infrastructure or licences.
Review cloud, software, maintenance, updates and parts over the same period. Ownership, export and contract ending matter too. A portal example for three cameras in one business is not a general Swiss system price.
| Cost item | Basis |
|---|---|
| Hardware | Cameras, power and storage |
| Mounting | Fixings and cable routes |
| Operation | Licences, storage and support |
| Acceptance | Testing, permissions and training |
Prepare the enquiry and acceptance
Start with work required, sites, use, areas and operating mode. Add existing cameras and specific image goals in the shared brief. Credentials, real footage and sensitive plans are unnecessary.
At acceptance, check views, nighttime conditions, recording, deletion and permissions. Document operation and responsibility. Building changes or new purposes need reassessment.
Frequently asked questions
Must I know the camera count for a new system?
No. Describe areas and purpose; sizing belongs in professional planning. Count existing cameras precisely.
Are more megapixels always better?
Not on their own. Angle, distance, light and movement also determine useful images.
Is recording included automatically?
No. Agree storage, capacity and deletion explicitly.
Can the camera film neighbours?
Not indiscriminately. Coverage and justification need specific assessment and limits.
Can I monitor employees?
Targeted behaviour monitoring is prohibited. Other purposes need specific employment and privacy assessment.
Does a notification dispatch a response?
Only if verification and attendance are explicitly agreed and connected.
