The construction of a tunnel space underground in the city, the power pipe corridor, rail transit, highway tunnel and other engineering pipelines are integrated, with a special overhaul port, lifting port and monitoring system, the implementation of unified planning, unified design, unified construction and management, is an important infrastructure and "lifeline" to ensure the operation of the city.

In order to ensure the construction safety, the construction party needs to transmit the construction situation in the pipeline corridor to the command center outside the tunnel in real time by video. UBT2000-DMB3330 emergency communication equipment, with its own ultra-high performance, can be well applied to the underground pipe gallery construction data transmission. After years of practical testing and application in mining, petrochemical, electric power, rail transit and other industries, it has won unanimous praise from users.

1. Product system composition

Communication host, communication antenna, debugging software three parts.

2. Product features and advantages

l Working mode: mesh networking

Standard compatibility: in line with IEEE 802.11a/b/g/n standards, MIMO, OFDM and other advanced technologies;

Stable and reliable: the average trouble-free time is more than 100,000 hours, to prevent crashes and other phenomena;

l Transmission rate: All frequency bands adopt 2*2MIMO rate up to 300Mbps;

l Signal range: coverage diameter up to 100 meters, transmission distance up to 500 meters;

l Product interface: provide 1 adaptive aviation network debugging port,1 battery charging aviation interface;

l Bandwidth selection: Support 5/10/20/40MHz multi-bandwidth selection, 40MHz bandwidth can provide up to 300Mbps transmission rate;

l Networking mode: single point coverage and multi-point roaming; Networking modes such as point-to-point communication;

Bandwidth management: Support WMM (Qos), support the priority mapping of air interface and wired interface, to ensure the priority of voice and video services;

l Product calibration: two sets of 4-level LED communication quality signal lights automatically display the received signal strength; 3 working indicators, 1 set of battery indicator;

Anti-interference: BeamForming technology can better suppress interference and reduce the impact on speed;

l Network management: WEB based remote management or SNMP management, support configuration file import/export and software upgrade;

l Product power supply: The product comes with built-in 12V lithium battery, easy to power and carry;

l Power adjustable: transmit power adjustable, single channel up to 500mW high power RF output;

Multiple features: Support Beamforming (Beamforming), support space-time block code (STBC), support low density parity check (LDPC);

Encryption mode: Support WEP, WPA, WAP2, AES, TKIP and 802.1X;

l Automatic frequency scanning: Support dynamic frequency selection (DFS), can automatically scan and select the channel according to the surrounding wireless environment;

l Spanning tree protocol: automatically select data link, expand multi-line backup function, can be suitable for high demand data transmission environment;

l Industrial appearance: plastic portable case, IP67 package, dustproof, waterproof, wind and sun protection, shock-proof design, high and low temperature stability, with balanced pressure valve;

Easy deployment: small size, light weight, easy to carry, greatly reducing work intensity and deployment difficulty; According to the device identification can be used immediately;

Product detailed parameters

4, the product can achieve the function

UBoTong's self-developed mobile emergency base station UBT2000-DMB3330 integrates industrial integrated equipment, data security encryption, fast mobile roaming, low latency VoIP voice and other emergency communication scheme design, to provide a stable and reliable wireless communication network for the underground pipeline corridor.

Through the wireless network composed of mobile emergency base stations, a variety of terminals such as handheld terminals and head-mounted terminals can be accessed. The network terminal can transmit video and data in the pipe gallery back to the data center through wireless signals to ensure real-time transmission of the situation in the pipe gallery and ensure the acquisition of first-hand data.

5. Product workflow

The base station has two functions of coverage and transmission at the same time, and a single base station can cover the base station area, connect with the network terminal in the coverage area, and exchange data. Multiple base stations can carry out network transmission communication between each base station.

The network terminal transmits the collected data to the base station through the coverage of the base station. The internal coverage function and communication function of the base station process the data, and then transmits the data between the base stations through the transmission function. One of the base stations is used as the network data backtransmission point, which is transmitted back to the data center by wired transmission through the base station air network port.

6. Schematic diagram of underground pipe gallery