Rainfall Monitoring Solution

1. General

       Wide range of large rainfall test in order to serve the cause of China hydrological, automatic measurement, automatic storage, the computer by the end of the year data compilation, hydrological database. According to the actual needs of hydrological stations, Shenzhen eTel Technology Co., Ltd., developed a fully automatic the rainfall water level telemetry system.

Rainfall water level telemetry system design is reasonable, accurate counting, storage, reliable, beautiful appearance, easy operation, you can set various parameters and receive data through the back-end computer (real-time rainfall, the whole point rainfall). Battery rechargeable battery, large capacity, high reliability.

The data center is equipped with dedicated data processing software, the software can be installed directly in win7/windows xp/98/2000, simple to use, easy to operate, intuitive man-machine dialogue, easy to learn, fast processing rainfall data. Printing rainfall year-end reorganization table comply with the Hydrological Yearbook provisions.

Automatic rainfall water level telemetry system mainly consists of four parts:

         1) Data Monitoring Center;

         2) Wireless data transmission communication platform;

         3) Telemetry terminals: multiple types of control terminal to meet the different power supply, the installation environment.

         4) Various sensors such as rainfall, water level.

The system communication using GPRS, as long as there is GPRS signal, the data can be sent via wireless transmission, according to GPRS week signal place, it can also be used to communicate SMS, at the monitoring center, install rainfall water level telemetry system management system ; each monitoring site installation telemetry terminals, monitoring wind direction, wind speed, temperature, humidity, dew point, barometric pressure, rainfall, solar radiation, photo synthetically active radiation data terminal configuration a data card (which can be handled in the local mobile company), through PGRS to send monitoring data to the center platform, and show the data on the platform.

2. Feature

1) Data monitoring and control center

eTel FAM cloud management platform is based on current demand for centralized monitoring and management of GPRSFAM to developed centralized management platform, the system provide remote data acquisition, remote control .It make all the FAM, user equipment and sensorsfully integrated, centralized monitoring and management, and it can display the operational status of each device, alarm information, current sensor status, maximizing user-friendly remote control device.

eTelFAM management platform let users just monitor all the FAM in the control centers, the system show FAM location on GOOGLE map, if there is alarm happen, the system will immediately locate FAM on GOOGLE map, and show red color logo flash and alarm content on FAM. It’s user-friendly, fast and accurate processing of alarm status.

FAM cloud management platform supports both C/S (Client/Server) and B/S (Browser/Server, Web-based) structure; users can simultaneously through the PC, MID, cellphone to access.

Data Monitoring Centre (C/S):

Base on windows PC, through client software Famer, direct access to the data center server, 7 * 24-hour run. Support FAM remote control, parameter setting, status query, remote photograph, LED issue, Add/Remove FAM, add/delete users, user authorization, statistics report etc., it's suitable for data monitoring center.

User PC (B/S):

User PC is able to directly through any browser to access the cloud management platform WEB address, remote query/the control the belongs FAM. Support FAM remote control, parameter setting, status query, remote photograph, LED issue, Add/Remove FAM, add/delete users, user authorization, statistics report etc., also we can use Famer client software (C/S) direct access to the data center.

Tablet PC and mobile phone (B/S):
Users of tablet PCs and mobile phones (including IOS and Android system), can be directly through any browser to access cloud systems management platform web address, remotely query/control belongs FAM. Support FAM remote control, parameter setting, status query, remote photograph, LED issue, Add/Remove FAM, add/delete users, user authorization, statistics report etc.,it’s suitable for end-user control belongs FAM at any time.


2) Hardware device



Wireless transmission device: ET8611 GPRS/SMS FAM

Function: for monitoring the remote device transfer data, data collection, remote maintenance and control of terminal equipment.

Collected back by the RTU Remote Terminal wireless transmission through the GPRS network to the Internet, and then received by the server.

3) Remote device

ET8611 GPRS/SMS FAM (Fixed Asset Monitoring) is an enhanced GPRS/SMS messenger (GPRS or CDMA service optional) which integrated with I/O port, RTU (Remote Terminal Unit), Relay, Sensor functions, it has more I/O ports than ET8610, which can help people to monitoring,  control,SMS alarm the remote devices.

ET8611 GPRS/SMS FAM main application filed is Power grid automatization, industrial monitoring, traffic management, weather, finance, Basic Environment protecting, colliery, Oil field etc., especially, apply in security, remote control. Implement transparent data transmission over GPRS/SMS network.

4) Sensor

Rain sensor

The program uses a tipping bucket rain gauge. The tipping bucket rain gauge is composed by the sensor and signal recording telemetry rainfall instruments, sensors by the Order of the water, dump, dump of measurement, counting dump, and reed switch; recorded by the counter, recording pen, self-recording clock control circuit board. Its working principle is: the rainwater from the top of the Order of the outlet into the Order of the water falling into the water receiving funnel, the funnel into the dump, when stagnant water reaches a certain height (for example, 0.1 mm), dump out of balance tipping over. Every dump dumping, so that the switch circuit is turned on, and conveyed to the recording device to a pulse signal, the recording control since Vocabulary document (s) will be recorded rainfall, and so forth can be rainfall measurement down.        

The sensor physical map ultrasonic water level gauge

Water level gauge

 The water level gauge float type level gauge, radar level gauge, bubble level gauge, ultrasonic water level gauge.

The program uses ultrasonic water level gauge. Ultrasonic water level gauge suitable for rivers, lakes, reservoirs, estuaries, channels, locks and hydraulic structures at water level measurement. It can be used as the water level data acquisition systems and hydrological automatic monitoring system sensors.


1) Non-contact measurement, from water pollution, does not destroy the flow structure

2) Without the construction of logging, save construction investment

3) Non-contact switch components

4) Flange or threaded connection, easy installation

5) No mechanical wear, stable and durable

6) Power supply and output signals using the same two-wire cable

7) Automatic temperature compensation and pressure correction