I.Industry situation

With the continuous and rapid development of urban infrastructure in China, the number of common facilities such as water supply, power supply, gas, electric power and communication in cities is increasing day by day. Various underground pipeline facilities also lead to the corresponding increase in the number of manhole covers.At present, due to the imperfection of manhole cover anti-theft measures and various monitoring means, and the lack of effective real-time management means, the safety accidents caused by random opening, theft of manhole cover, damaged manhole cover or being washed away by the rain occur from time to time, which not only affects the normal work of manhole cover equipment.At the same time, accidents caused by manhole covers will cause great harm to vehicles and pedestrians on the road, and even bring personal casualties and economic losses in serious cases, causing great negative impact on social stability.

Wuxi Mantu Technology Co., Ltd. based on LoRa wireless communication technology, launched the intelligent manhole cover system solution.Advanced Internet of Things technology, cloud data platform, LoRa wireless communication technology and 4G network are used to upload the data collected by sensors, so as to achieve the purpose of manhole cover abnormal alarm and health monitoring.Effectively solve the omission problem caused by manual screening, and achieve the purpose of real-time monitoring.

II.system architecture

This system is divided into three parts, namely: perception layer, network layer and application layer.

Sensing layer: The sensing layer equipment is the manhole cover monitoring sensor. Through the sensor, the opening of the manhole cover and the health status of the manhole cover are monitored. In case of any abnormal situation, the timely report and early warning signal are issued.

Network layer: The network layer connects through ManToo MTB469-0-0a LoRa wireless communication base station and transmits information through LoRa and 4G network.

Application layer: The application layer USES the ManToo cloud platform system to facilitate users to obtain manhole cover data through mobile phones and PCS, and the system automatically sends warning signals to abnormal manhole cover information.

III.system capability

※Monitoring of manhole cover status: real-time monitoring of manhole cover status. Once the manhole cover is opened or moved abnormally, early warning signals will be sent in time and the treatment mechanism will be started. Monitoring of overflow water of the manhole cover can also be achieved.

※Manhole cover information display: the location, basic information, real-time status, etc. of the manhole cover can be displayed on the electronic map, and the location, basic information, real-time status, historical status record and other information can also be displayed in text form.

※Alarm linkage: After the early warning signal is generated, the alarm will be sent to the alarm center in a timely manner. Meanwhile, the alarm information system will be pushed to the mobile phone APP and other clients of the responsible person and management personnel to intuitively show the location of the abnormal manhole cover, and the maintenance completion will be reported to speed up the work efficiency.

IV.Program features

※Real-time data collection: Real-time data collection of all monitoring points and transmission to the diffuse "Industrial Cloud Brain" MTIC 3.0 cloud platform for data analysis and dynamic display through big data Kanban.

※High security, high reliability: the system can effectively prevent and prevent network attacks such as illegal access, illegal access, virus infection and hacker attack, with a high degree of security and confidentiality;The system adopts mature, stable and general technology and equipment, which can guarantee the long-term stable operation of the system, and has strong fault tolerance and system recovery capability.

※Early warning and intelligent analysis: The real-time collected data can be compared with the set threshold value, so as to give the relevant disposal personnel enough time to eliminate the security risks.

※History data statistics: each monitoring points of the second, minute, the hour, the day the historical data can be recorded in the monitoring nodes in separate files, which can more quickly to view history curve, some historical and real-time data can be viewed in the curve of data records at the same time, the smallest interval unit of history is the second, and according to different classification of storage in the form of guarantee without having to recalculate when check the annual report, improve the display speed.

V.Software system interface

VI.Introduction to Intelligent Terminal

MTB469-0-0A LoRaWireless communication base station (gateway) adopts industrial-grade application design and USES high-performance industrial-grade wireless module, high-performance industrial-grade processor and other components. It can be connected to LoRa terminal of various application nodes and the collected information can be transmitted to the cloud server through 4G or wired Ethernet.This product has been widely used in the M2M industry in the Internet of Things industry chain, such as smart grid, smart transportation, industrial automation, smart building, fire protection, public safety and environmental protection, meteorology, digital medical treatment, etc.

Mtb469-0-0a LoRa wireless communication base station