Physical and operational security
CCTV monitoring and access control. A clear view of every event.
We design new installations and modernise existing systems. Video, controlled entry and event records are connected so an authorised person can identify a problem, locate the relevant record quickly and take the agreed action.
Choose the right starting point
Not every site needs a completely new system.
We first establish whether the real issue lies in devices, configuration, infrastructure, missing procedures or day-to-day operation. This directs investment at the cause instead of merely increasing the number of cameras and readers.
Existing-system review
For organisations that already use CCTV, access control or time attendance but do not know whether the system will work correctly during a real event.
- Check video, recording and system time
- Assess accounts, permissions, retention and remote access
- Prioritised list of risks and corrective actions
Phased modernisation
Where part of the installation remains serviceable and the issue concerns selected zones, the recorder, network, readers, capacity or operating method.
- Verify which components can remain in service
- Prioritise replacement without an unnecessary overhaul
- Plan work to limit disruption to the site
New deployment or expansion
For a new site, a changed layout or an existing system that cannot provide the required quality, control or room for growth.
- Event scenarios and protected zones
- Architecture, retention, permissions and integrations
- Acceptance tests based on agreed situations
From site to system
First we establish which event must be detected, stopped or explained.
Camera count is not the starting point. Risk zones, light, movement of people and vehicles, network infrastructure, power, retention and day-to-day operation all matter.
Site survey, objectives and event scenarios
Fields of view, lighting and camera parameter selection
Recording, capacity, retention and footage export
Readers, controllers, doors and access permissions
Time attendance and event links to the appropriate system
Network segmentation, named accounts, updates and secure remote access
Notifications and agreed integrations
Commissioning, acceptance tests, instruction and service
Equipment selection
Proven brands. A model selected for the task.
We offer equipment only from selected, proven product lines by manufacturers such as Hikvision and HiLook, Dahua, BCS, Zintronic, AXIS and VIVOTEK.
CCTV · AC · T&A
Three different jobs. One agreed operating model.
CCTV, access control and time attendance can exchange information, but each has a different purpose. Separating their roles reduces false expectations and simplifies ongoing operation.
Video surveillance
Displays and records video from protected areas. It helps identify an event, verify what happened and preserve the relevant section of footage.
Important limitation
A camera does not by itself guarantee identifiable material. Framing, lighting, movement, recording quality and regular operational checks all matter.
Access control
Grants people, cards or other identifiers access to defined doors and records events relating to granted or refused entry.
Important limitation
The design must cover door operation, emergencies, lost identifiers and permission removal — not merely the reader model.
Time and attendance
Records agreed start and finish events and may pass data to a further attendance or payroll process.
Important limitation
Time attendance supplies input data. It does not automatically replace working-time rules, the HR process or authorised review of exceptions.
Operational scenarios
System selection begins with a situation, not a product catalogue.
Scenarios define the required view, recording method, access rule, expected notification and acceptance test. This makes it clear how the solution will be judged to work.
Situation 01
Entry outside working hours
The system must distinguish an authorised entry from an event that requires review.
- Define the zone and schedule
- Verify the access-control event
- Route the alert to the agreed recipient
- Confirm that video and logs can be located
Situation 02
Delivery or release of goods
The recording should show the relevant operation rather than only a general view of the yard.
- Identify the key area and direction of movement
- Assess light, distance and view obstruction
- Select recording quality and retention
- Test search and secure export of a clip
Situation 03
Access to a restricted area
Permission should follow a role and must not depend on one person remembering to revoke it.
- Create access groups and schedules
- Define identifier issue and return
- Record denied access and administrative events
- Verify door behaviour in an emergency
Situation 04
Device or recording failure
Discovering missing video only after an incident means the system was not truly supervised.
- Define normal device and storage state
- Configure available technical alerts
- Assign responsibility for receiving them
- Plan periodic checks of video, recording and system time
Control and accountability
Video and logs stay under the control of authorised people.
Video surveillance that processes identifiable images requires a defined purpose, appropriate legal basis, proportionate scope and transparency duties. The customer remains the data controller and defines organisational requirements; we help translate them into technical safeguards, but we do not replace legal advice or a data protection officer.
- 01We limit the observed area and analytics functions to the agreed purpose.
- 02Retention is set deliberately and storage capacity is calculated for the adopted parameters.
- 03Access uses named accounts, roles and activity records where supported by the system.
- 04Remote viewing is secured without exposing the administration panel directly to the Internet.
- 05Footage and log exports should have a defined recipient, purpose and secure transfer method.
- 06Audio recording is not part of standard video surveillance and is not enabled by default.
- 07Device selection considers security-update availability, vendor support and the ability to back up configuration.
How the work proceeds
From a site survey to a tested scenario.
Scope, responsibilities, disruption and acceptance criteria are agreed before installation. Existing systems are assessed for compatibility and device condition before modernisation.
- 01
Site assessment
We establish objectives, zones, events, environmental conditions, existing cabling, network, power and installation constraints.
- 02
Design and quotation
We describe points, functions, retention, permissions, licences, integrations, acceptance criteria and safe access to installation locations. Where a work platform is needed, its rental is shown as a separate item.
- 03
Installation and configuration
We install agreed components, organise accounts and networks, and configure recording, doors, schedules and notifications.
- 04
Testing and handover
We run the agreed scenarios, provide instruction and the agreed handover documentation, and tailor further support to actual needs.
Clear boundaries
Technology, operator duties and additional services have separate scopes.
Sigma Vision scope
Camera and door-point design, image-parameter selection, configuration of recording, approved retention, roles, schedules, remote access and alerts, together with agreed testing and technical documentation.
Customer decisions and duties
Purpose and basis for operating the system, approval of observed areas and retention, transparency duties, identification of authorised people, footage-disclosure rules and organisational event handling.
Separate work and services
Work-platform rental and transport, an operator, building and electrical works outside the installation scope, fire or alarm-system integrations, monitoring-centre services, biometrics, specialised analytics, legal advice, data-protection impact assessment, and vendor licences or services.
FAQ
Questions before a CCTV, access-control or time-attendance project.
A useful answer depends on the objective, the site and its operating model. That is why we do not begin with a ready-made device bundle.
How many cameras does our site need?+
The number cannot be determined responsibly without understanding the objective and conditions. During a site survey we identify scenarios, areas, required detail, lighting, obstacles and the movement of people and vehicles. Only then do we select points and image parameters.
How long may recordings and logs be retained?+
Retention should not be determined solely by disk capacity. As a starting point for assessment, we commonly suggest 30 days for routine CCTV footage, 90 days for an auxiliary visitor log and 12 months for operational access-control events. Workplace video surveillance is subject to specific rules and footage should generally not be retained for more than three months unless it is or may become evidence in proceedings. Time-and-attendance data incorporated into employee records may be subject to much longer statutory periods, depending in part on the employment date. The controller makes the final decision after defining the purpose, legal basis and obligations applying to the organisation; only then do we configure retention and storage capacity.
Can CCTV record audio?+
We do not enable audio as a standard CCTV feature. Video surveillance does not automatically provide a basis for recording conversations, and audio materially increases privacy risk and requires separate legal assessment.
Will the system work without Internet access?+
Local recording and operation can be designed so that core functions do not depend on Internet access. Connectivity is still required for agreed remote access, cloud services or notifications. Exact behaviour depends on the selected architecture and devices.
Can existing cameras, readers or cabling be reused?+
Yes, if their condition, parameters, protocols, vendor support and security allow the agreed objective to be met. We check compatibility before quoting a modernisation and do not promise integration based only on a vendor logo.
What determines the cost of CCTV or access control?+
The main factors are the number and type of protected zones, installation conditions, required image quality, retention, number of controlled doors, identification method, licences, power, network and integrations. Where installation points cannot be reached safely from available infrastructure, scissor or articulating work-platform rental and transport — and an operator where required — are priced separately.
How long does a review or deployment take?+
Timing depends on site size, available documentation, installation scope and equipment lead times. After the assessment we provide the sequence and planned schedule. Work that may affect entrances, the network or site operation is scheduled for an agreed time.
Do you provide service after commissioning?+
Yes. An agreed service plan may include periodic video and recording checks, device and storage condition, configuration backups, updates, fault handling and administrator support. Frequency, service hours, response times, travel and replacement parts are defined separately so the scope remains clear.
Will video analytics detect every event?+
No. Motion, line-crossing, person or vehicle detection can support an operator, but effectiveness depends on framing, light, weather, configuration and product limitations. We define expected behaviour and test selected scenarios instead of promising error-free detection.
Are access control and time attendance the same system?+
No. Access control determines whether a passage is permitted, while time attendance records events used for working-time records. They may share an identifier or integration, but permissions, data and accountability should reflect their separate purposes.
Who is responsible for signage, privacy notices and compliance?+
Data-controller responsibility remains with the organisation operating the system. We can implement agreed technical safeguards and parameters, but we do not provide legal opinions. Where legal analysis or a data-protection impact assessment is required, the scope should be reviewed with the appropriate specialist or data protection officer.
Start with the site and scenarios
Let us establish whether you need a review, modernisation or a new deployment.
During the first conversation we establish the site type, key zones, existing solutions and expected response. The next step is matched to the problem: it may be a review of existing material, a site survey, a modernisation concept or a quotation for a new system.
Describe the site and issue →