Long range data transmit of environmental monitoring has been applied in HeiLongJiang province for many years,but the transmit equipments are aging and unstable,the tronsmit method is behindhand.

• 我省环境监测的远程数据传输也应用多年,但目前普遍存在着设备老化、传输手段落后、设备运行不稳定等状况,急需对现有系统进行换代或改造。