Utility tunnel
Case of Video Intercom System for Tunnel Traffic and Parking Security in France
Outdoor public infrastructure projects require communication terminals that can remain reliable under rain, dust, humidity, heat, sunlight, vibration, and possible external impact. In tunnels, urban parks, public access areas, and unattended service points, a simple call button is often not enough. Project operators need a rugged video intercom terminal that supports clear two-way communication, video verification, remote response, and centralized management.
This case study focuses on two overseas applications of the BHP-SOSA12 video intercom: the France Tunnel Video Intercom Project and the Indonesia Urban Park Security Communication Project. Both projects used BHP-SOSA12 as the front-end communication terminal to improve field-to-center communication, outdoor safety response, and daily security management.
The France Tunnel Video Intercom Project required stable communication points at tunnel access areas and key operational locations. The site environment included outdoor exposure, dust, moisture, vehicle vibration, and frequent personnel movement. If the communication terminal was not durable enough, water ingress, unstable calls, weak audio output, unclear video, or impact damage could affect access verification, maintenance coordination, and emergency handling.
The project team needed more than voice calling. When field personnel contacted the management center, operators also needed live video to confirm the caller, check the surrounding condition, and decide whether to provide remote instructions or arrange staff response.
The Indonesia Urban Park Security Communication Project had a different operating environment. The site was an open public area with high temperature, high humidity, frequent rainfall, strong sunlight, and distributed visitor movement. Park entrances, public pathways, service points, and security areas all required reliable communication access. Relying only on patrol staff would increase response time and operating pressure.
For this project, the customer needed fixed outdoor video intercom terminals that could support visitor assistance, emergency calling, remote voice guidance, and video confirmation from the management center. The system also needed to connect with centralized management so that calls, video, and response coordination could be handled more efficiently.
Both projects adopted a practical field-to-center communication structure. The BHP-SOSA12 was installed at outdoor communication points as the front-end terminal. The network carried voice, video, and control signals to the management center, where operators could answer calls, view live video, speak with field users, and coordinate the response process.
The solution was built around three priorities: rugged outdoor operation, clear audio-video communication, and centralized management. Instead of using separate devices for calling, monitoring, and response coordination, the BHP-SOSA12 helped create a fixed communication entrance that connected the field user directly with the management team.
| Configuration Item | BHP-SOSA12 Capability | Project Value |
|---|---|---|
| Protection design | IP66 waterproof and dustproof structure | Supports long-term outdoor operation under rain, dust, humidity, and exposed installation conditions |
| Impact resistance | IK10 anti-impact protection | Reduces damage risk in public areas, tunnel access points, and unattended locations |
| Audio output | Built-in 10W high-power speaker | Provides clearer remote voice instructions in outdoor or noisy environments |
| Video capture | 4MP HD camera | Helps operators verify users, observe site conditions, and make faster response decisions |
| Low-light support | Infrared supplemental light | Improves visibility at night, in shaded areas, or under weak lighting conditions |
| Communication mode | Two-way video intercom | Allows direct communication between field users and the management center |
| Management access | Centralized platform connection | Supports remote call handling, video viewing, event coordination, and unified maintenance |
In the tunnel project, BHP-SOSA12 terminals were installed at key access and communication points. When field personnel needed assistance or access confirmation, they could initiate a call through the terminal. Operators at the management center could receive the call, view the video feed, and communicate with the user before taking further action.
The 4MP HD camera helped operators check the field condition more clearly, while the infrared supplemental light supported operation in weak-light areas. The built-in 10W speaker improved voice delivery in an environment where background noise and outdoor conditions could affect communication clarity.
In the urban park project, BHP-SOSA12 terminals were placed at entrances, service points, public pathways, and key security areas. Visitors or staff could contact the management center directly when they needed help, reported an abnormal situation, or required service support.
The management center could use voice and video to understand the situation before sending staff to the location. This improved response efficiency and reduced the pressure on routine patrols. For a public park with distributed areas and changing visitor flow, fixed video intercom points created a more reliable communication entrance.
After deployment, both projects gained a more direct field-to-center communication channel. Field users no longer needed to rely only on mobile phones, patrol staff, or temporary contact methods. A fixed BHP-SOSA12 terminal provided a visible and reliable communication point for access verification, visitor assistance, abnormal event reporting, and emergency communication.
The management centers also gained better situational awareness. Operators could hear the user, view the site, give remote instructions, and decide whether to dispatch staff. This reduced uncertainty during the first response stage and made the communication process more traceable.
The tunnel project customer reported that BHP-SOSA12 improved real-time communication at key access points. Video confirmation helped the management team verify site conditions more quickly, while the rugged housing met the project’s expectations for outdoor durability.
The urban park customer confirmed that the terminals performed reliably under hot, humid, and rainy conditions. The system improved visitor assistance, security response, and centralized management. By providing fixed communication points across the park, the project reduced reliance on manual patrols and improved daily operating efficiency.
These two projects show how BHP-SOSA12 can support different outdoor communication needs with the same core product capability. In the tunnel project, its value was access communication, video verification, and rugged operation near critical infrastructure. In the urban park project, its value was visitor assistance, distributed security communication, and centralized platform management.
For outdoor security communication projects, the BHP-SOSA12 is more than a simple intercom terminal. It combines IP66 protection, IK10 impact resistance, a 10W speaker, 4MP HD video, infrared supplemental lighting, two-way communication, and platform connectivity. These features help field users reach the management center quickly and give operators clearer information for decision-making and response coordination.
Becke Telcom focuses on industrial communication and integrated security communication solutions for demanding project environments. From rugged video intercoms and emergency call terminals to SIP dispatch, public address, and platform integration, Becke Telcom helps project teams build more reliable field communication systems for tunnels, parks, campuses, industrial sites, and public infrastructure.