A 6.0-magnitude earthquake struck Yibin, Sichuan, at around 22 PM on June 17, killing 11 people and injuring 122 as of Monday morning, authorities said. Many citizens reported that the earthquake was felt in Sichuan and Chongqing. Outside Sichuan province, tremors were felt even in Guizhou and Shaanxi. After the earthquake, emergency management departments immediately issued instructions, requiring immediate understanding of the earthquake situation, deployment of rescue forces, and the launch of relevant emergency plans.

Earthquake is the human irresistible natural disaster, its great harm, not only to the ground buildings, mountains and other natural objects caused direct damage, but also to equipment and facilities, traffic, communication interruption and other lifeline engineering facilities are destroyed, what is more, will cause fire, explosion, toxic substances leakage, radioactive pollution, site damage and other disasters causing human and animal casualties and property losses. Communication is a key problem in the face of the massive damage caused by an earthquake. Without a complete communication network, emergency relief work cannot be carried out, so the first priority in earthquake relief work must be to establish a quality of transmission system. The emergency rescue system formed by the wireless AD hoc network of MESH can be a great aid to earthquake rescue.

A complete earthquake emergency rescue communication system should meet the following functional requirements

1.Quick opening, quick deployment, temporary erection and quick opening of wireless communication network at the emergency site.

2.Through the system, the command and dispatching platform is connected with the front personnel, vehicles and control points to establish a two-way audio and video wireless communication network; To realize two-way high-definition, high-definition video, audio and network data transmission between the front node and the command center.

3.multiple links for audio and video transmission at the same time, video and data multimedia transmission.

4.Multiple nodes cover urban areas to realize mobile node access at any time.

A reliable emergency communication system after the occurrence of an earthquake can enable the rescue headquarters to quickly understand the situation on the scene, provide timely and real information for decision-making, and facilitate the rapid implementation of emergency rescue. Therefore, emergency communication technology plays an important role in reducing casualties and economic losses caused by earthquakes.

At this time in Sichuan YiBin Changning earthquake stricken area, multi forces are participating in the rescue. Here we join hands with the general community to pray for the disaster area, wish Sichuan Yibin earthquake disaster area all peace, less casualties, more a guardian.