Zhongtian Technology invented China's first online monitoring system for water quality of underwater observation network

The mayor, the director of environmental protection, the director of water conservancy and people who are concerned about water quality can get effective data
in real time as long as they log in to the computer or open the mobile APP.
On April 16, the identification of the first online water quality monitoring system of the domestic underwater observation network showed that this new technology broke the international monopoly and filled the domestic gap
.
This high-tech was provided by an expert team composed of four doctors from Zhongtian Technology Submarine Cable Co.
, Ltd.
, and after a long period of research with experts and professors from Zhejiang University, it was finally successfully applied to the online monitoring
of underwater observation water quality in the Yangtze River Basin.
According to Dr.
Guo Chaoyang, this system technology is very convenient to apply, and the monitoring data provided is real-time, stable, continuous and reliable
.

Due to the worldwide water crisis, surface water and groundwater have been polluted to varying degrees, and the water quality is deteriorating day by day, so people are particularly sensitive
to the nerves of water quality monitoring.
According to a water quality report, only 15 of China's 29 key cities have passed all 20 drinking water indicators, accounting for about 52% of the cities sampled; In 14 cities, one or more indicators were unqualified, including more than eighty percent of the residual chlorine content in water samples; 4.
The turbidity of the city exceeds the standard by 1 times; high oxygen consumption; The total number of water-like bacteria exceeded the standard by 17 times
.

Premier Li Keqiang's expression of water pollution control in the government work report used harsh words such as "strict environmental law enforcement", "heavy punch", "heavy price", "strict accountability" and "whole-process supervision", indicating the attitude towards the iron-fisted management of water pollution, so that every person can drink water with peace of mind
.
The state has promulgated the "Water Ten Rules", and has joined the participation of the Central Organization Department and the Ministry of Supervision, which further indicates that the evaluation of officials in this regard has been strengthened
.

Expert analysis pointed out that water quality monitoring refers to the unified regular or irregular detection of chemical substances, suspended solids, sediment and water ecosystems in water, identifying the types, concentrations and trends of pollutants in water, and evaluating water quality conditions
.

At present, the water quality monitoring of drinking water sources in China mainly adopts two methods: water source sampling monitoring and buoy monitoring
.
Water source sampling monitoring is to properly sample the water from the water source and send it back to the laboratory for testing and testing, requiring that the water sample must be sufficiently representative and free from any accidental pollution, and the preservation and pretreatment are more complicated, and the water quality of the water source cannot be reflected in real time, accurately and completely
.
Buoy monitoring is mainly used in lakes, rivers, etc.
, using solar cell power supply and wireless communication for power supply and data transmission
.
The reliability of this monitoring method is not high, the data transmission speed is low, and sometimes there are problems such as
power supply and communication interruption.
For a long time, China's water quality monitoring methods have stayed in the traditional sampling and buoy monitoring, real-time and reliability is low, and can not really achieve the purpose of in-situ monitoring, more advanced monitoring systems are basically dependent on imports
.

It is understood that the underwater observation network developed by Zhongtian Technology Submarine Cable is a network system that comprehensively uses optical, electronic, computer, communication, control and other technical means, integrates a variety of acoustic, image, physical, chemical, biological and other sensing observation equipment, and is deployed at the bottom of important water sources, rivers, lakes or oceans to conduct long-term continuous, real-time, in-situ observation, and can send the original data and calculated parameter information to the government, institutions, enterprises and public information terminals through wired and wireless communication networks.
It has important livelihood value
for drinking water safety and water environmental protection.

Guo Chaoyang believes that the online water quality monitoring system of the underwater observation network aims to carry out long-term, continuous, real-time and in-situ monitoring
of water quality.
The construction of the water quality online monitoring system of the underwater observation network adopts DC power supply, underwater connection and optical fiber communication technology, and the water quality sensor is placed underwater for a long time, which has the advantages
of high reliability, wide monitoring range, fast data transmission speed, large transmission capacity, high scalability and construction and maintenance.

Xue Jianling, general manager of Zhongtian Technology Submarine Cable, said that the development of an online water quality monitoring system of underwater observation network with people's livelihood and economic value, and a full range of detection and early warning of drinking water safety, not only has important social significance, but also provides new profit growth points for the company, and can drive the production and sales of marine optical cables, offshore engineering devices and other supporting products, with good market prospects
.

Professor Xie Shuhong, chief engineer of Zhongtian Science and Technology and director of the Submarine Cable Research Institute, said that the company has undertaken a number of national 863 "submarine observation network" construction projects, participated in the construction of all domestic underwater observation networks, and has rich experience and strong engineering equipment capabilities
in underwater network design, equipment manufacturing, construction and maintenance 。 The online monitoring system of water quality of the underwater observation network developed this time is mainly composed of shore base station, transmission cable, node, camera system and sensor, making full use of the experience of submarine cable company in submarine observation network construction and submarine cable production, including several subsystems: shore-based remote monitoring system, electric energy and communication transmission network, node connection and monitoring system, data observation system, with high technical content
.

Dr.
Yang Huayong, the organizer of the project, said that the successful development of the water quality online monitoring system of Zhongtian Science and Technology Underwater Observation Network will realize and meet the full supply of water quality online monitoring system, effectively improve the in-situ, real-time and reliability of monitoring parameters, and also provide basic development conditions for other applications, including marine observation, water quality and hydrological research, etc.
, which will surely provide a strong guarantee
for the development of environmental protection fields including drinking water source monitoring in China.