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Why can communication be recovered quickly after a disaster?

Why do cell phone signals fail after disasters?

After the natural disaster, the main reason for the interruption of mobile phone signal is: 1) power supply interruption, 2) optical cable line interruption, resulting in the base station interrupt operation.

Each base station is generally equipped with a few hours of battery backup power, when the mains power outage, will automatically switch to the battery power supply, but if the power outage is too long, the battery depletion, the base station will interrupt operation.

Natural disasters, such as storms, landslides, and other disasters, often lead to cable lines that cut off base stations from the operator’s core network and the external Internet, making calls and Internet access impossible even if the phone has a signal.

In addition, after the disaster, as many people are eager to make phone calls, for example, people outside the disaster area are eager to get in touch with their loved ones in the disaster area, people in the disaster area will report to their loved ones outside the safety, which will lead to a sharp increase in local network traffic, resulting in network congestion, and even cause network paralysis. If the network is heavily congested, the carrier usually sets a priority for network access to ensure critical communications, such as emergency calls and rescue commands, to prevent large-scale communication system breakdown due to the expansion of congestion.

How does the carrier carry out the communication rush repair?

In view of the base station power failure, the operator will quickly organize personnel to transport the oil machine to the base station for power generation, in order to ensure the normal operation of the base station.

For optical cable interruption, optical cable line maintenance personnel will quickly find the breakpoint, and rushed to the scene, optical cable repair.

For areas where communication cannot be restored within a short period of time, operators will also dispatch emergency communications vehicles or drones, as well as satellite communications systems, for temporary emergency support.

For example, after the torrential rain and flood in Henan province, for the first time, wing Loong uav was equipped with base station equipment and satellite communication equipment to complete emergency communication support for Mihe Town in Gongyi, Henan Province.

Why can communication be recovered quickly after a disaster?

According to the report, the henan zhengzhou lingering after heavy rainfall, communication base stations in the city area, back multiple communication optical cable is damaged, under the ministry of industry organization, China telecom, China mobile, China unicom, China tower overnight to carry out emergency communication security work, as of 21 July 10, 6300 base stations has been repaired, 170 cable, a total of 275 km.

According to the data released by the three major operators and China Tower, as of 20 o ‘clock on July 20, China Telecom has dispatched a total of 642 people for emergency repair, 162 vehicles and 125 oil engines. As of 10 o ‘clock on July 21, China Mobile has dispatched more than 400 personnel, nearly 300 vehicles, more than 200 oil machines, 14 satellite phones, and 2,763 base stations. As of 8:00 a.m. on July 21, China Unicom has dispatched 149 vehicles, 531 personnel, 196 diesel engines and 2 satellite phones to send 10 million public emergency messages. As of 8 o ‘clock on July 21, China Tower has invested a total of 3,734 emergency repair personnel, 1,906 support vehicles and 3,149 power generators, 786 returned base stations have been restored, and 15 municipal branches in the province have been organized to rapidly gather in Zhengzhou, which was severely affected by the disaster, supporting a total of 63 emergency power generators and 128 emergency support personnel. 220 generator oil machines.

Yes, as in any previous disaster, this time can quickly restore communication, to ensure the smooth communication lifeline, of course, cannot do without those carrying the oil machine, carrying the melting box in the rain repair, and overnight on duty in the room communications people.