Tunnel/Underground Utility Corridor Multimedia Dispatching Solution

I. System Composition

Xiaobeng Technology's comprehensive optical fiber telephone solution is a highly integrated management system that can exist independently as a phone system or simply replace the costly centralized control platforms of monitoring centers (multi-system联动). It is particularly suitable for intensive projects. The system consists of a central management system deployed at the control center and branch stations (node hosts and telephone subunits) installed in the pipeline. The central management system includes an integrated pipeline digital program-controlled switchboard (capable of connecting to the monitoring system), an optical fiber telephone access host (capable of connecting to wireless AP systems, fire linkage alarm systems, and independent broadcasting systems), a touch screen dispatch console, and software for the integrated pipeline emergency telephone dispatch system.

Function Details

A fiber optic telephone access main unit is configured with 2 SC optical ports to form a ring network (expandable to 4 networks), featuring 8 adaptive LAN ports for networking. Each ring network can accommodate 1024 telephones. The standard system configuration includes 256IP type extensions, with 8 ring trunks (configurable for expansion).

　　1. Unlimited Inbound and Outbound Calls: The system allows for communication between host (or backup) nodes within the pipeline, as well as between these nodes and the control center. Additionally, it enables direct phone connections between pipeline nodes (or backup nodes) and public network users (communication permissions are controllable).

　　2. Broadcast Function: Control center administrators can dispatch voice broadcasts to the secondary telephones via the integrated pipeline emergency phone dispatch system software installed on the touch screen dispatch console, convene meetings, and select the controlled broadcast range as needed.

　　3. Monitoring and Permission Settings: The center can monitor and set permissions for calls on any node host (or backup machine).

　　4. Fiber Optic Self-Healing: The fiber optic telephone node host and access host form a fiber optic ring network structure, equipped with a fiber optic self-healing ring function. The overall system switch-over and self-repair time is less than 100ms. A single node host failure does not affect the normal operation of other node devices (or backup machines) and the telephone system.

　　5. Recording and Playback: The system is capable of recording all calls between the center and external lines, as well as all internal corridor calls. It also allows for recording record queries and playback. The standard configuration offers a recording duration of 30,000 hours.

　　6. Each branch (or substation) can call the dispatch center directly by dialing or picking up the phone, and the dispatch desk phone in the control center will ring. The integrated pipeline emergency dispatch system software installed can directly display the caller's phone number, Chinese name, and location, such as Integrated Compartment 01, Partition 1, No. 1.

　　7. Dispatchers can call any internal node host (or backup) within the pipeline from the control center. The call operation simply requires picking up the phone and pressing the corresponding button on the touch screen dispatching console, automatically establishing a full-duplex conversation.

　　8. All extension calls are unblocked. When multiple extensions make calls simultaneously, they are automatically queued, with the names and numbers of the queued extensions displayed. Queue calls are handled on a first-come, first-served basis. Operators can also choose to answer any queued extension by simply clicking the "Priority" button on the dispatch console and then selecting the extension from the queue.

　　9. Voice alerts for alarm prompts can be recorded into the dispatching system (interface with fire linkage alarm system). When the corresponding switch is activated, the corresponding alarm prompt voice is played. If linked with front-end collection sensors, when a gas detector in a certain area detects a leak, it triggers a switch quantity for the dispatching system. The system can then initiate calls to all extensions within the area according to a pre-set plan, with the phone automatically playing the corresponding alert sound upon picking up.

　　10. The dispatching machine features a card-based design, allowing for flexible configuration according to actual customer needs, facilitating future expansion and protecting investments. It supports IP extension registration, analog user FXS extension, loopback relay FXO, digital relay E1, recording board REC, IP relay, and more. The common section supports hot backup redundancy design, ensuring uninterrupted call switching during mainboard switching. All cards are designed for live insertion and removal, making maintenance convenient.

　　11. Supports integration with video surveillance systems; simply add a video server and connect it to an IP camera or a hard disk recorder of a monitoring system. Bind the camera location to the nearest extension, and when the dispatcher clicks on the bound extension on the dispatch console, the live feed from the camera in the monitored area will directly pop up on the console, allowing the dispatcher to more intuitively understand the situation.

　　12. Support for WIFI mobile phone connectivity (wireless AP system integration). For projects with installed wireless APs, we can equip managers with WIFI mobile phones for convenient portability and timely communication.

III. Node Master and Slave Functions

Node Host Emergency Fiber Optic Telephones Deployed: Substation/Manhole Entry/Intake Ventilation Ports

　　● Telephone-type node host, standard 0-9, star/diamond, redial/flash disconnect dial pad, supports regular dialing and direct dialing via pick-up hotlines (emergency calls)

　　Texas Instruments VoIP Voice SoC, SIP 2.0 Communication Protocol

　　● Taiwan REALTEK Fiber Transmission SoC, Ring Network Self-Recovery Time <100ms, Throughput Capacity 2Gbps

　　● Full IP65 protection rating, standard three-proof design, anti-mold/anti-humidity/anti-salt mist, orange ABS glass fiber reinforced body

　　●SC optical port x2, reserved adaptive RJ45 network port x3 (optional with POE), capable of external wireless AP, IP camera connection

　　● RJ11X7/8/9 telephones, capable of fully concurrent downstream connections for 7-9 phone subunits

　　● Single-mode Single-fiber (Single-core) Transmission Cables

　　● Fiber Wavelength 1310/1550 NM

　　● Transmission distance of 20 kilometers (between node hosts), downstream phone substation transmission distance of 1.5 kilometers

　　● Full Load Power Consumption: 15W, Standby Power Consumption: 10W

　　● Input voltage: AC220V 50Hz, wide voltage input range: 85-264V

　　Operating Temperature: -30℃ to +60℃

　　●Operating humidity: 10～95%RH (at 30℃)

Waterproof/Blastproof Telephone Substation (Fiber Optic Emergency Telephone Substation) Deployment Location: Various sections of the pipeline corridor, including electrical compartments, integrated compartments, and gas compartments, etc.

　　The phone case is made of high-strength reinforced ABS engineering plastic, featuring a sealed structure design for dust, water, and corrosion resistance. The protection rating reaches IP66, making it suitable for harsh environments.

　　The unit is compatible with any 48V-60V switchgear.

　　● Redial feature for the second set of phone numbers.

　　The electronic circuit utilizes a contactless structural design to prevent the formation of electrical sparks, thereby providing flame prevention.

　　● The alarm signal is indicated by both sound and light.

　　● Integrated phone and shell design.

　　The cabinet door features innovative and sturdy construction with stainless steel pull handles and rare earth strong magnetic door latches.

Section 4: Product Introduction

　　Tunnel Corridor Digital Programmed Dispatching Machine

　　The system fully integrates the functions of digital exchanges and switching machines, representing the next generation of programmed dispatching systems. It is equipped with powerful external line dispatching and switching capabilities.

Utilizing ultra-large-scale communication dedicated chips, specialized DSP digital signal processing chips, and FPGA programmable logic chips, the system ensures low power consumption, high efficiency, long lifespan, and high reliability. It also achieves full thermal backup for public units with seamless switching capabilities; all unit boards support hot swapping; system hardware monitoring functions, automatic isolation upon unavailability or failure; critical relay routes can operate in a master-backup mode; the system incorporates three-tier lightning protection, and all have passed the K20 lightning protection test, fully meeting the special requirements of heavy lightning areas.

Mainboard, secondary power hot backup

Hot-pluggable, mixed-plugging

Multiple priority forced insertion, forced removal, group forced insertion, group forced removal

Scheduling Monitoring Function

There were 200 meetings (a mix of internal and external lines).

Inbound and outbound call waiting

State-of-the-art full-channel digital recording system, hard disk file management system, and scalability

　　2. Video Server

　　The 1U rackmount server with server-grade motherboards (compact, fits any small cabinet, quiet, energy-efficient, powerful performance). The new Intel Xeon E3, operates stably and continuously at high temperatures of 40 degrees Celsius. Integrated LSI RAID for enhanced data security.

　　System Parameters

Processor: E3-1231 V3 (3.4GHz high frequency, 8 cores, 8M cache)

Memory: 4GB DDR3 / 1600MHz

Hard Drive: 500G / 1TB

　　Enclosure: 1U Temperature-Controlled Enclosure (Depth: 420mm)

Power Supply: Huanaja 300W Server Power Supply

System: Ubuntu Server Client

　　3. 21.5-inch Touchscreen Dispatch Console

　　The 21.5-inch PC-type dual-hand touch screen dispatch console is a newly designed LCD industrial-grade touch screen dispatch console with an aesthetically pleasing appearance. The screen features a new 21.5-inch 16:9 high-brightness, low-power, environmentally friendly LCD wide screen, offering clearer and more imposing text display; paired with capacitive touch screen; the operating interface is intuitive and straightforward, making it easier to use; integrated with an industrial-grade low-power embedded mainboard, supporting CF, HDD, and equipped with multiple I/O interfaces.

　　Structural Parameters

Surface Treatment: Black sand texture powder coating on panels, color black, edges in silver.

Case Structure: Surface baked paint treatment, aesthetically pleasing, lightweight, and excellent heat dissipation performance.

Handset Phone: Includes 2 built-in customized phones with one-touch hands-free feature

Installation Method: 21.5-inch Embedded Desktop

Overall Weight: 17KG

　Overall Dimensions: 720mm x 336mm x 85mm

Operating Voltage: 220V

　　System Parameters

Processor: I5-4200U series processors

Memory: 4G DDR3 / 8G DDR3

Hard Drive: 500GB / 1TB

Expanded Interfaces: VGA Port, HDMI Port

　I/O Interface: 1*RJ45, 4*USB, 2*Phone Line LAN, 1*AUDIO

　　Comprehensive Utility Tunnel Emergency Phone Dispatching System Software

Meeting: Press this button and then directly click on the User button to form a temporary conference call; all selected users will automatically join the temporary meeting.

Speech:When the ad-hoc meeting key is pressed and recognized as valid, pressing this key followed by the corresponding user key will switch the extension from listener to speaker mode; when the ad-hoc meeting key is not pressed, or is invalid, pressing this key then the corresponding user key will toggle the extension between listener and speaker modes.

Decline: When the host has already seen the interface prompt for an incoming call, clicking this button will send a busy tone to the incoming extension.

Strong Insert:Click this button to insert the host into an ongoing call with a substation, forming a conference call. During insertion, both the host and the inserted substation are in listener mode (if the talk key is valid during forced insertion, it will become a multi-party call after forced insertion).

Demolition:Click this button to disconnect any active extension during a call.

Full Contact:When multiple calls come in simultaneously, press this button to answer all and form a conference call.

Priority:In the event of an emergency, when multiple parts of the machine are simultaneously receiving calls while the main unit needs to selectively answer or is unable to answer and must call out to report the situation, pressing the priority call allows the main unit to pick up and listen to the dial tone before proceeding as desired.

Monitoring:Press this button to listen in on any extension currently on a call.