With the development of country’s economy and the acceleration of urbanization, the environmental pollution facing lot of problems. A city road surface should be dust-free and clean. This is not only important reflection of city’s appearance, but a major livelihood issue that restrain the pedestrians from inhaling the harmful gases and endangering their health. For this reason the local government shows great importance to reduce the road dust and invest a lot of money to purchase the dust removal equipment and the vehicles to improve the quality of sprinkler services and effectively solve the problem of sprinkler services to the greatest extent as possible.

But can the government's great attention and large investment of funds really solve the problem of road dust removal? On the surface, it can indeed be seen that the number of sprinkler truck operations has increased, and dust suppression has also played a certain role, but some problems have also arisen:
1. Affect road traffic and make road congestion more serious;
2. The number of traffic accidents increases;
3. Most of the sprinkler trucks are fuel vehicles, which increases CO2 emissions;
4. Cause disturbance to residents during operation and cause dissatisfaction among residents.

How can we achieve the purpose of dust removal and the haze reduction and avoid to create the new problems, during the operations. The Tianzheng high tech used the black technology to teach you the how to solve the problems. In response to the current situation of roads and traffic in China Beijing. Tianzheng High tech has independently developed the IoT intelligent sprinkler dust removal and the haze reduction system, through the application of various black technologies such as Lora IoT wireless communication, wireless electric valve controller, wireless air quality sensing, air temperature and humidity sensors, PM index, and smart municipal big data management platform.

The TSC high tech intelligent control system integrates main components like intelligent gateways, wireless solenoid valve controller, and wireless air temperature sensor on the basis of cloud center. The different devices communication through the Lora transmission protocol, and can automatically form network controller, and solve the problem of long distance and high cost of strip expressway. The system also set the high and low temperature and the humidity value, therefore after the analysis and processing of cloud platform management software, the green belt valves can be opened and closed automatically. Thus, through the remote timing, remote linkage, and the remote switch modes, the intelligent control of wireless automated agricultural irrigation can be achieved with just one mobile phone.

组成设备

1.Intelligent gateway

The smart network gate (intelligent gateway) independently developed by the Tianzheng high tech, and mainly used for control operations or analyze the data. It can also achieve the localized operation and control. In case of unable to update the data in temporary condition, or user control end cannot be used, it can automatically control and turn on the corresponding devices such as the solenoid valves, water pump and the fans, however, through intelligent self learning, and calculation based on the real-time data, collected by various sensors, and the historical records. Therefore, the GPRS, WIFI, RJ45, can be used to upload or receive the instructions from the cloud center, the data collection, and the control devices are connected through the low-power LORA communication via LPWAN, and no additional fee is required. It can be power by main electricity or solar energy.

2.Wireless solenoid valve controller

The wireless sprinkler system consists of air temperature and humidity sensors, and a wireless Lora electric valve controller for wheel irrigation, a DN25 electric ball valve and a special intelligent retractable sprinkler head (pressure not less than 0.8 MPa). The nozzles can be controlled and spray for every 30 minutes through wireless network. Therefore, the installation process of control system does not required any work such as slotting, wiring, or buried pipes, which greatly reduced the difficulty and the cost of construction in the municipal project.

3.The first intelligent pump room

The intelligent pump room is composed of frequency control cabinet, wireless Lora water pump control module and other types of equipment’s. Its not only ensure the stability of water supply pressure during the road sprinkling, but also protect the booster pump. At the same time, user can realize the control through mobile App or computer, and remote intelligent control.

System Features

Ease of project transformation

All control equipment in the entire IoT intelligent sprinkler dust removal and haze reduction system adopts Lora wireless communication, which has long transmission distance and strong penetration. No additional slotting or wiring is required. As long as there are water pipes, it is suitable for on-site modification. At the same time, it adopts Wireless will also greatly reduce post-maintenance costs.

Superior equipment performance

The wireless LORA intelligent gateway (core of system, which interacts with the cloud center through GPRS in uplink and communicates with controller and sensors in downlink through LORA), and has independent transmission and acquisition channels (2 to 4 channels), which can effectively avoid collisions during signal transmission and reception. At the same time, it has 32 assignable different channels and supports online modification of device frequency points on the mobile APP, which greatly improving the system anti-interference ability. The latest Lora wireless networking method adopted by the system uses star shaped networking between intelligent gateways and nodes (control devices, sensing devices), and the transmission distance can be stable at 500M-1400M in urban areas. Both the controlling devices and sensing devices have an IP68 protection level.

Improvement of system mechanism

The system is equipped with various sensors such as air temperature, humidity, PM2.5, PM10, and supports real-time display on a large LED screen. It has four control modes: manual, timing, automatic and polling control, which can meet the needs of users in various circumstances. The mobile APP has standard mode, and advanced mode, which can be freely switched by the managers, and is suitable for managers of different ages for applications. It Supports multiple users, and simultaneous alarm mechanism for mobile SMS and WeChat. It also Supports the daily water consumption statistics, realizing a clear understanding of water resources usage. Therefore, seamlessly integration with smart city management platform for the operation of smart cities.