With the advancement of technology, IoT technology has quietly entered our lives and work, and has been applied in various fields. Such as industrial monitoring, smart cities, smart water management, etc., the Internet of Things connects to cloud servers and improves production efficiency, flexibility, and responsiveness through big data analysis and processing.

The products originally used for measuring temperature, pressure, flow rate, and level in industry have also been directly transplanted to municipal applications through the early direct matching of corresponding components or fast modeling. Now, with the deep research and development of built-in communication chips, low-power design, dedicated power management solutions, and automatic sleep technology, the specialized sensing end IoT products designed for the characteristics of municipal applications are truly suitable for current practical applications.

With the continuous advancement of cloud services and related technologies, significant progress has also been made in supporting remote monitoring. It is possible to quickly obtain relevant data and have a clear understanding of various parameters using mobile apps, WeChat mini programs (which can cross mobile operating systems, even the recently popular HarmonyOS), IE, and other means.

The remote water level monitoring solution for road surfaces (roads/tunnels) by Autai Automation has the advantages of convenient data collection, processing, and orderly joint drainage and debugging management to improve urban management efficiency. It is a crucial step in digitizing water management in cities, roads, tunnels, and other areas.

Doppler flow meter brings you professional service，with the continuous improvement of urban management level, the ability to obtain various measurement data has also increased synchronously. In the urban Road waterlogging monitoring system, real-time monitoring of the waterlogging level in various low-lying sections of the urban area can be achieved and automatic warning can be realized. So that the municipal management department can use this system to comprehensively grasp the waterlogging situation in the entire urban area and timely carry out drainage scheduling. The traffic management department can obtain real-time water levels of various road sections through this system, and provide travel guides for the general public through media such as radio and television to avoid significant losses caused by personnel and vehicles entering deep water sections by mistake

Working principle

Doppler FLOW METER brings you professional service，this device adopts a hidden buried installation method, which meets the current urban landscape requirements. The dual-mode (ultrasonic and conductivity) working mode can effectively solve the problem of product battery life. By using internal intelligent algorithms, the measurement mode can be automatically switched, effectively reducing product power consumption. Conductivity and ultrasound are used to sense changes in water level through analog measurement. Due to the special nature of road surface water, most of the time the equipment is installed in an anhydrous state. Therefore, directly measuring with a single ultrasound signal is more wasteful of electricity and has a significant impact on the battery life of the product.

So the four electrodes introduced (mutually backed up) are used to measure the conductivity of water to determine whether there is water. Due to the extremely low power consumption of measuring conductivity, this can greatly improve the utilization rate of the battery. When water is measured, the device will automatically switch to ultrasonic measurement mode. Of course, in order to ensure the reliability of the work, ultrasound will also be regularly activated to perform composite judgment on the conductivity measurement results.

The unique wave control technology optimizes the blind spots of the product in ultrasonic measurement mode. The echo pattern measured by the equipment can be reproduced and analyzed through a dedicated interface.

Determine the current water level by observing the changes in the propagation time of ultrasonic waves in water. It should be noted that the product may be affected by ultrasonic measurement blind spots, and the water level and environmental temperature signals will be uploaded to the cloud through NB-IOT or 4G.

It is more suitable for use in situations where the water level is not high (usually below 0.5 meters of accumulated water), such as open roads, bridges, elevated roads, parks, etc. (installation) for water level measurement.

Measurement principle:

The product uses a combination of ultrasonic waves and conductivity sensors to detect water level. Two sets of dual backup conductivity sensors are responsible for triggering water accumulation, and ultrasonic waves are responsible for accurate water level measurement. Report safely every 6 hours (adjustable) when there is no water accumulation, and every 5 minutes (adjustable) when there is water accumulation.

Main technical parameters:

▶  Measurement parameters: water level, conductivity, temperature, signal strength;

▶  NB-IOT model: 0-0.5 meters (after installation, the signal is better than -80dB);

▶  LORA RF version: 0-1.6 meters;

▶  Stainless steel pit press shell;

▶  Ultrasonic and conductivity dual-mode composite sensor;

▶  Built in integrated dedicated antenna;

▶  Convenient battery replacement and reduced maintenance costs;

▶  Compact size, buried installation, does not affect the urban landscape;

▶  Both NB and LORA support remote OTA;

▶  All parameters support remote setting;

▶  Capable of sediment permeability testing;

▶  Equipped with a safety report function;

▶  Support airborne wake-up technology;

Application scenarios:

Measurement and warning of water accumulation on municipal roads, park roads, and important facilities (such as power facilities such as transformers, substations, etc.).

Important reminder: When using NB-IOT for direct wireless upload, it is necessary to confirm the NB signal strength and stability at the installation point, as it may affect the reliability of data transmission. If the NB signal quality cannot be confirmed, please choose the more robust transparent transmission option: LORA RF version. NB model factory default selection: telecom operator!

Signal Concentrator