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Utility Tunnel Telephone

Item No.: AP01
Utility Tunnel Telephone
First, the introduction of the integrated pipe gallery
The integrated Utility Tunnel is a comprehensive corridor of underground city pipelines, that is, a tunnel space is built underground in the city, integrating various engineering pipelines such as electricity, communication, gas, heat supply, water supply and drainage, etc., which is a modern, scientific and intensive The urban infrastructure can effectively solve the problems of "air spider web" and "zippered road". It has a special inspection port, unified design, unified construction and management, and is an important infrastructure and "lifeline" to ensure urban operation. .
Second, the analysis of communication needs of integrated pipe corridor
   The interior of the city's integrated Utility Tunnel not only integrates the tap water, gas, electricity, and communication pipelines that maintain the city's functions, but also has many power, lighting, and drainage equipment used for the functions of the Utility Tunnel . Whether the pipelines involved are faulty or the auxiliary equipment is faulty. , will cause the embarrassment of the function of cities along the line. The environment in which the pipe gallery is located belongs to a relatively closed underground space. The mobile phone signal of the operator cannot be covered. Many of the entrance units have their own communication needs, which makes the emergency call must have the ability to communicate with the outside world. It must be compatible with the call requirements of each corridor unit. Therefore, it is very important to build a commercial and reliable emergency communication system, which plays an indispensable key role in the disaster relief of the corridor.
Third, the design basis
2017 Edition "Technical Specifications for Urban Integrated Pipeline Monitoring and Alarm System Engineering"
2017 Edition "Design and Construction of Integrated Pipeline Monitoring and Alarm System"
YDT 1263-2003 "Technical Requirements for Interworking between IP-Based Networks and Traditional Telecommunications Networks"
YDT1390-2005 "Software-based application server equipment technical requirements"
YDT1516-2006IP "Technical Requirements for Intelligent Terminal Equipment - IP Telephone Terminal"
GA/T75-94 "People's Republic of China Public Safety Standards - Safety Precautions Engineering Procedures and Requirements"
Fourth, the solution
The various pipelines in the pipe gallery are complicated and the laying distance is long. The data is easily lost or interfered in such an environment. Shenzhen Yuantong uses the highway, railway, mining, petroleum, chemical, metallurgical, electric power and other fields accumulated over the years. The development and production experience of industrial telephones at home and abroad has developed a comprehensive integrated corridor communication emergency communication system based on SIP network telephone for integrated pipe corridor. The system integrates soft switching, management scheduling, external line out, digital recording, call positioning and broadcasting. Calling and other functions in one; Shenzhen Yuantong has developed a multi-functional handheld wireless video intercom system for the corridor application environment, using the mature WIFI, mobile phone, APP and computer software technology. It is a video walkie-talkie and management. The platform consists of two parts, based on the on-site WIFI environment, providing users with audio intercom, video intercom, SIP call, picture upload, video upload, data storage traceability management, real-time monitoring during mobile, remote assistance, precise positioning, etc. On-site communication and management tools. Thus, an integrated integrated solution of fixed communication, wireless communication, and on-site management and control is formed.
V. System composition
   The fixed communication system consists of a softswitch server, a network switch, a dispatching station, a dispatching phone, an IP network phone, etc. The composition and connection diagram are as follows:
As shown in the above figure, install the IP core dispatching server, dispatching station, intercom broadcast alarm phone, and the device access monitoring network in our monitoring center. Install industrial-grade IP network telephones in the pipe gallery, and use the existing LAN communication in the pipe gallery. One phone failure will not affect the normal operation of other phones. The gas engine room needs to use explosion-proof products.
The wireless communication system consists of a server, on-site management software, WIFI network, and VOIP handheld walkie-talkie, as shown in the following figure:
As shown in the above figure, the server and the on-site management software are set up in the monitoring center. The VOIP hand walkie-talkie is carried by the operation and maintenance personnel. The on-site WIFI wireless network is formed by the wireless AC and the wireless AP. The whole system can realize the operation and maintenance personnel. Inter-audio video intercom, call between the center and all fixed telephones, and call between 110, 119, public network landline and mobile phone, take pictures of the problems found on the scene, upload video to the center, center positioning operation and maintenance personnel The location, the center to view the trajectory of the operation and maintenance personnel patrol, etc., is a tool for the operation and maintenance personnel.
Sixth, program value highlights
1) IP phones do not need to be separately laid with telephone lines and optical fibers. Wherever there is a network, they can be flexibly deployed and easily migrated.
2) Adopt advanced multi-voice coding technology and multiple voice processing optimization techniques to ensure clear and smooth sound quality.
3) Adopting the international standard SIP protocol, it is an open system, and products complying with this standard can be connected to the system.
The compatibility is very strong, so that the user has no worries;
4) The system provides a secondary development interface that can be seamlessly integrated with the pipe gallery platform.
5) Fixed communication, wireless communication, and on-site management and control.
Seven, the main functions of the system
1) Visualized scheduling graphical interface, which can effectively view various states of the management telephone terminal, including registration status, call status, service status, etc. The console software runs on the WIN 7 and above operating system platform, the interface design is compatible with the touch screen, and the split screen technology is adopted. , can be displayed in multiple screens.
2) The console software can visually see the grouping and status of each telephone terminal, and can realize call, transfer, forced insertion, demolitions, monitoring, broadcasting, telephone recording, telephone and conference, etc. through touch screen (or mouse) click. The scheduling function provides an interface protocol to implement linkage with other systems.
3) The IP core dispatch server is based on the standard SIP protocol, supports third-party device access, external access, supports international standard G.722 broadband voice coding, and combines unique echo cancellation technology to provide high-fidelity, high-definition sound quality.
4) The IP core dispatch server adopts the Linux operating system, supports 5000 terminal access, and 400 simultaneous calls to ensure long-term safe and reliable operation of the system.
5) All the phones are registered to the IP core dispatching server. The office phone of the management center can also access the system. The management workstation installed with the console software does not affect the normal use of the system.
6) The phone adopts integrated design to ensure the simplicity, beauty, reliability and convenience of construction and maintenance of the phone. The protection grade of aluminum alloy is IP67.
7) The phone needs to have a protective front cover to ensure that the handle, buttons, indicator lights and other components are free from dust and dirt after long-term placement and use.
8) There are sound and light indications when the phone rings, so that the personnel in the corridor can answer the call quickly and accurately.
9) Adding a power amplifier module and an external broadcast speaker to the phone can realize functions such as single broadcast, zone broadcast, all broadcast, music broadcast, and timed broadcast.
10) The VOIP video intercom mobile phone in the pipe gallery can be seamlessly connected to the system, so that the fixed communication system and the wireless communication system share the same platform, and the functions of mutual access and mutual call are made.
11) VOIP mobile phones can realize audio and video intercom, SIP phone, picture and video upload, positioning and other functions.
Eight, the main equipment parameter indicators
1) IP core scheduling server
★ Support center and extension, extension and external network, external network and center, extension and extension call each other.

The software and hardware of the product have good expandability, which is convenient for future system expansion.
Recharge and upgrade to meet current business needs and meet a certain period of time in the future
The need for business development within the company.
The console workstation is connected to the core dispatch server through the network port.
★ The center can broadcast the extension of the pipe gallery.
Central host operating temperature: -10 ~ 55 °C, storage temperature: -30 ~ 60 °C.
★ Supports mainstream speech coding standards such as G.711, G.722, G.723, and G.729.
★ Two-way intercom, partition conference, insert, dismissal, monitor, intercom recording.
1U rackmount with 250GB solid state drive.
2) Touch screen dispatching station
The system dispatching station can handle two emergency extensions simultaneously to call at the same time. When multiple extensions have a call, the system can automatically queue and display the name of the call queue extension (cabin number and cabin number); all operations of the dispatcher adopt touch screen man-machine Dialogue, full Chinese interface, system settings, software upgrades, remote maintenance, extension expansion, etc. can all be completed online.

3) IP network phone
1. Aluminum alloy casting shell, shell thickness 5mm, multi-layer waterproof and dustproof structure.
2. The equipment is designed with embedded computer technology and DSP audio processing technology;
3, using high-speed industrial grade chips, startup time is less than 1s.
4, built-in voice intercom call module, support full-duplex voice intercom and call, with high-performance DSP audio processing, support for digital echo cancellation, audio compression.
5, comes with digital keys and function buttons to achieve call to any terminal, full duplex

Intercom, hands-free dialing.
6. Built-in call ringing buzzer; with microphone handle, pick up the phone to answer the call.
7. Built-in 30W mono digital power amplifier, suitable for wide range of calls, amplification, background music playback.
8. Internal configuration one short circuit input and one short circuit output terminal; short circuit input is suitable for signal and data acquisition, short circuit output is suitable for monitoring video linkage.
9. Support multiple call policies, including call waiting and call forwarding.
10. Support menu-free dial-up design, support conference mode, built-in conference scheduling management function.
11. Support call manual, automatic call call function, you can set the call phone number.
12. Support presets to quickly play the program library, and support the network to remotely trigger the program to play.
13. Support custom hang mode, optional active or passive hang mode.
14. One-click call mode, one-button alarm mode, support conference discussion mode.
15. High degree of protection (IP66) design, alloyed and detachable
Screw, explosion-proof, waterproof, anti-acupuncture.
16. Support for SIP 2.0 (RFC3261).
17. Codec: G.711A/u, G.7231 high/low, G.729, G.722, G.726.
18. Echo cancellation: Support G.168, hands-free support 96 milliseconds.
19. SIP supports SIP domain name, SIP authentication (none, basic, MD5), and supports servers in the form of domain names.
20. SIP supports the primary and secondary servers, and automatically switches to the standby server once the primary server is disconnected.
21. The telephone has a ringing tone of 120 db and a volume of 120 db with a ringing indicator.
22.★ Anti-violence damage to the earpiece, repeated tapping without breaking, stainless steel hose, tensile strength of 200KG or more.
23.★ Mean time between failures (M.T.B.F) is not less than 50,000 hours.
24. ★ Explosion-proof telephone auxiliary machine meets the ExibIIcT6Gb standard.
4) VOIP video intercom mobile phone

Utilize the characteristics of WIFI broadband, no traffic cost, realize rich multimedia functions, support voice intercom, video intercom, multimedia information reporting and real-time video monitoring, etc. The detailed functions are as follows:
 1 Real-time voice intercom, real-time video intercom, group intercom.
2, automatic inspection, remote real-time monitoring, remote capture, automatic upload of scene graphics.
3, accurate positioning and customized alarms, documents issued.
4. Battery safety design.
5. Protection level: IP54.
6, in line with the performance requirements of the three anti-mobile phones.
7. Standby is greater than 80 hours and talk time is greater than 4 hours.
8, support fast switching between APs, keep the voice smooth.
9, support WEP64, WEP128, WPA, WPA2 and other encryption methods.
10. Support DHCP automatic acquisition and static configuration of network parameters.
11, support SIP 2.0 (RFC 3261), good compatibility.
12, support audio codec: G.711u G.711a G.729.
13, support DSP echo cancellation technology, large volume echo suppression, high voice quality, low latency, good stability.
14, support TFT color display, support Chinese and English interface display, support Chinese and English input method.
15. Support IEEE 802.11b/g/n, transmit power 15~17dBm, and receive sensitivity greater than -90dBm.
16, support caller ID, call waiting, call transfer and other services.
17. Support sending and receiving short messages in Chinese and English.
18, can store 400 address phone book.
19. Received calls, missed calls, and dialed numbers, 20 each.
20, reachable distance 300 meters
Nine, construction plan
1) Joint design
Although the design institute has already designed the plan, after the contract is signed, we will work with the customer to carry out a deeper joint design to determine the number of devices, models, networking solutions, and installation methods. According to the joint design document, we will complete the drawing of the construction drawings and submit them for review according to the schedule of the construction period. After the approval, it will be used as the basis for construction.
2) Technical disclosure
In the process of construction technology management, the technical disclosure is not only the lowest level of the team leader to the site construction workers, but also the technical person in charge of the construction team technical staff, the construction team technical staff to the team leader, with multiple levels, feedback Sex and adjustability. The technical department in charge of the project department will submit the construction key points, key points, connection points and principle issues to the professional construction technicians according to the construction drawings, construction acceptance specifications, quality inspection and evaluation standards, construction organization design, construction plan and site conditions after the meeting. The feedback from the construction technician is responsible for the guidance and handling. According to the technical personnel's information and on-site situation, the construction staff will make a detailed report on the construction content, quality requirements, actual operation points, and control points, and will be responsible for the guidance and handling of the team leader's feedback. The team leader will pay the actual work of the on-site construction workers according to the construction workers' on-site and on-site conditions, such as specific operations, process details, and the boundaries of the defective products, and will be responsible for guiding, explaining and handling the feedback from the workers.
3) Construction preparation:
The system must be fully prepared for construction after the engineering tasks are clarified, and the preparation work should be completed before the construction personnel enter the site. It mainly includes the following contents: clarifying the organizational structure of the construction personnel of the project, appointing project managers, construction main personnel, technical support personnel, technical quality directors and construction safety supervisors. It is confirmed that the progress of the process is basically in place, for example, the cable and the optical cable have been laid in place, and the environment of the monitoring center is basically available. Prepare the construction plan of this project and report it to the leaders of the engineering department and the head of the company for approval.
4) Construction plan:
The construction plan of the project is prepared according to the overall requirements of the project. The construction plan includes construction schedule, personnel arrangement, equipment investment, cost budget and engineering interface division.
5) Construction quality control:
The system quality control is divided into three parts: the first part is the product manufacturing process, the second part is the engineering installation process, and the third part is the system debugging and testing process. Each part of the quality monitoring points has detailed quality requirements and monitoring methods as well as quality inspection leaders.
6) Equipment installation
Central equipment installation: The central control unit and the core IP dispatch server are installed in the cabinet of the central equipment room.
Installation of fiber optic phones: Fiber optic phones are installed on a 1.5 m high bridge.
7) System debugging
Be sure to familiarize yourself with the system debugging program before commissioning the system, and strictly follow the "system debugging outline" for debugging. Non-professionals are strictly prohibited to debug the system by themselves The debugging process should be recorded in full time and pay attention to the record.
X. Training plan
Technical training is arranged for each project, and the training is divided into maintenance level and operator level. Those who require to participate in maintenance-level training must have a bachelor degree or above, and an operator-level person must have a college degree or above. Technical training is carried out at the project site. The organization of the training work is coordinated by the general contractor and the owner. The faculty and teaching materials are arranged by the company.
Ten-, engineering testing and acceptance
The inspection and acceptance of this project shall be carried out in accordance with the requirements stipulated in the bidding documents. Before the system acceptance, the strict “self-inspection” shall be carried out in accordance with the requirements of the bidding documents. After the self-inspection is passed, the supervision and the owner's acceptance shall be submitted. There should be no remaining problems in the self-inspection, and the remaining problems in the acceptance should be resolved in time. Ensure acceptance meets good standards.
Twelve, part of the project performance
1. Haikou Underground Comprehensive Pipe Gallery Pilot Project Phase II Mei'an Yizhong Road
2. Haikou Underground Comprehensive Pipe Gallery Pilot Project Phase II Jiangdong Avenue Phase II
3. Zhejiang Jinhua Danxi Road East Extension Phase II Integrated Pipe Gallery
4, Jishou integrated pipe gallery fiber optic telephone system
5. Zhaoqing New District Political and Cultural Group Municipal Road Phase I Project Phoenix Avenue Pipe Gallery
6. Shaanxi Tongchuan Comprehensive Pipe Gallery
7. Lanzhou Yantan Area Comprehensive Pipe Gallery
8. Chengdu Hongxing Tunnel Fiber Optic Emergency Telephone System
9. Baccarat station tunnel fiber optic emergency telephone system
10. Chile Railway Engineering Emergency IP Telephone System
11. Emergency telephone system for the second standard of Chongshui Expressway, Shangjin Township, Longzhou County, Chongzuo City, Guangxi Province
12. Chongqing-Guiyang Line Optical Emergency Telephone Reconstruction Project
13. Beijing Metro Rail Transit Voice Intercom System
14. IP broadcast intercom system for Beijing Metro Line 19 tunnel

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