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Smart manhole cover solution

Aug.29.2024

The Current Situation of Traditional Manhole Covers

  

A large number of inspection wells are produced in the construction of electricity, communication (radio and television, telecommunications, mobile, Unicom), municipal administration, gas, sewage and rainwater, water plants and fire protection. However, there is a lack of effective real-time monitoring and management means (mainly manual inspection). Manhole cover losses frequently occur in various places, and the road surface becomes a trap, threatening the safety of pedestrians and vehicles! The underground pipe network resources are scarce, and the problem of unauthorized crossing is serious.
Problems faced by management departments: How to effectively supervise?
企业微信截图_17249141867498.pngThe manhole cover is lost but no one knows.
企业微信截图_17249141867498.png When the manhole cover is lost, the person responsible cannot be found.
企业微信截图_17249141867498.png Whose responsibility is it when a certain one is lost?
How to solve the above confusions through technological means?

   

Urban rainwater manhole covers, sewage manhole covers, communication cable manhole covers, etc. In addition to being prone to loss, these manhole covers have different materials and unequal qualities. Many manhole covers are exposed to sun and rain and crushed by vehicles, and can easily become "road black holes", posing safety hazards to passing vehicles and pedestrians.

How can management departments effectively supervise when facing problems?
企业微信截图_17249144202104.pngHow to control the source of inferior manhole covers?
企业微信截图_17249144202104.png Damaged manhole covers cannot be replaced in time.
企业微信截图_17249144202104.png It takes a long period to hold those responsible for accidents.
How to solve the above confusions through technological means?

System Architecture

Working Principle

The intelligent manhole cover management system includes a cloud management platform, an APP, emergency electronic keys, and intelligent manhole covers. Personnel, intelligent manhole covers, and electronic key ledgers are entered in the management platform; the permissions of personnel and electronic keys can be set through the platform. Specified personnel can open which intelligent manhole covers within what time period. Operators log in to the mobile phone APP to view the assigned tasks (that is, the permissions they have). Operators can unlock directly through the APP or via Bluetooth through the mobile phone APP, and can view the status of the intelligent manhole cover. The monitoring data of the external cover and the environment information inside the well of the intelligent manhole cover is pushed to the platform and the mobile phone APP in real time.

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System Architecture

    

The concept of the IoT for smart manhole covers

According to the distribution characteristics of urban manhole covers, fully combined with the actual application scenarios and adapted to local conditions, through the current mainstream wireless/wired cloud sensor network networking methods such as 4G/NB/485/DO, the deployment of the intelligent real-time cloud monitoring and control Internet of Things system for "urban manhole covers" can be quickly realized. While fully ensuring the safety of various manhole covers, it greatly shortens the construction time of the real-time monitoring system and reduces the implementation cost of the system.

Functions such as monitoring, real-time alarming, automatic inspection, and timely handling of the manhole cover status (opening, displacement, inclination) and the underground status (temperature, liquid level, concentration of toxic gases) are achieved. At the same time, considering the safety and importance of manhole cover opening, intelligent anti-theft locks can be installed on the manhole covers. The local and remote secondary authentication opening methods are used to ensure the safety of the manhole covers. The smart manhole cover system further improves the informatization and intelligentization level of municipal management and lays the foundation for industry applications in smart cities.

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Monitoring&Protection

   

  • Intelligent Monitoring of Manhole Cover Opening

  • Intelligent Monitoring of Underground Pipe Network

  • Intelligent Monitoring of Manhole Cover Inclination

  • Intelligent Positioning of Manhole Cover on Map

  • Intelligent Monitoring of Underground Environment

  • Secondary Authentication for Unlocking Manhole Cover

     

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Parameter
Optimize antenna design
Patent appearance design, shockproof and anti-drop
Low power consumption design: Battery warranty for 36 months
High-temperature resistant design: Working temperature range from -40℃ to 80℃
Support multiple communication modes
24-hour equipment detection
Waterproof and dustproof design: IP68 protection level, can be used normally within a water depth of 10 meters
Salt fog resistant design: Conforms to the AASS test of the GB/T 10123-2012 standard
  • •low power
  • •Alarm
  • •Easy to maintain
  • •Real-time state report
  • •Safe
  • •Easy install
  • •Wireless supplire

    

     

Solution: Specific Functions

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Platform Remote Unlocking  
Mobile Phone APP/Bluetooth Unlocking  
Bluetooth Key Emergency Unlocking  
Wireless supplier key Emergency Unlocking   
Outer Cover Detection   
Long term cover opening or loss warning  
Underground Environment Status Monitoring
(Water immersion, water level, temperature, 
humidity, etc. )  

     

Solution: Intelligent Manhole Cover Operation and Management Platform 

     

  • Personnel Management
    Information management and permission setting for system administrators and on-site operators

  • Intelligent Manhole Cover Management
    Intelligent manhole cover information, intelligent manhole cover files,and hierarchical management of intelligent manhole covers

  • Key Management
    Key files, key status management, task download

  • Task Management
    According to the on-site work requirements, set the unlocking area, time
    period and operation permission for the on-site operators, and carry out
    remote unlocking and remote upgrading

  • Log Management
    Viewing, statistics, and output of self-check logs and operation logs

  • Alarm Information
    View the alarm information of relevant data of intelligent manhole covers, outer covers,and inside the manholes

     

Example of application scenarios 

     

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    1、Engineer Zhang received a notice that an accident occurred with the manhole cover in Area A and needs to go to the site for handling. 

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    2、The system administrator sends the unlocking authorization to Zhang through the system platform. 

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    4、Administrator Li queries Zhang's maintenance record through the system platform to confirm the completion of Zhang's work. 

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    3、Zhang arrives at the accident site and uses the mobile phone APP to connect with the lock via Bluetooth. The manhole cover lock is opened. Zhang carries out the maintenance work. After the maintenance is completed, the manhole cover lock is closed and the data of opening and closing the lock is uploaded in real time. 

       

Solution:Phone APP

    

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    Login Interface 

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    Map Display 

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    Personal Center 

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    Operation Interface 

      

Product highlights - Manhole Cover Lock & Manhole Cover Alarm

       

  • Both the manhole cover lock and the alarm adopt the NB wireless transmission mode with advantages such as low power consumption, low cost, deep coverage, and massive connections to monitor the status of the manhole cover in real time.

  • Both the platform side and the mobile phone APP side can view detailed basic information such as the geographical location, working status, and battery power of the manhole cover lock and the manhole cover alarm.

      

Solution: Intelligent manhole cover lock 

      

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Diversification of communication modes 
4G/NB/485/DO can ensure the stable transmission of the system under the manhole cover. 
Protection level 
IP68.
Operating temperature 
-20℃——+70℃.
Anti-corrosion ability 
The main material is stainless steel 304 and has passed the 72-hour salt spray test.
Battery life time 
Low-power consumption design, the power consumption in PSM state < 30uA, large-capacity battery, 38000mA, standby time > 5 years. 
Anti-technical opening and violent damage 
The unlocking handle is a 360° idle rotation design with a built-in wake-up mechanism and uses DES encryption 

       

Security

    

The bearing capacity of the intelligent manhole cover is > 34KN; Digital coding is adopted to prevent technical opening; It can monitor the opening of the outer cover and upload the status of the outer cover and the environment inside the well in real time; All kinds of alarm information are pushed in real time

   

Intelligentization

   

The lock can be opened in multiple ways. It is clear who opens which manhole cover at what time, and the records can be queried in real time on the backstage for intelligent and traceable management. The status information and alarm information of the manhole cover and the inside of the well are pushed in real time to facilitate the timely and effective management by the management personnel. This makes the management simple, precise, effective and intelligent. 

   

GPS navigation

     

The equipment is scattered in various locations. In the process of operation and maintenance inspection and equipment emergency repair, a lot of time and energy are required to find the stations. The intelligent manhole cover system has a visual navigation function, which can enable the staff to arrive at the designated site at the first time, greatly saving the time of finding the stations and improving work efficiency. 

   

Step-by-step authorization and real-time monitoring

    

Traditional management requires the submission of work tickets for step-by-step approval, which wastes time. Reports cannot determine their accuracy and timeliness. The intelligent access control system enables step-by-step authorization for staff to open and lock, and relevant logs can be viewed in real time. After the implementation, centralized management, step-by-step authorization, and real-time viewing of relevant records are achieved. 

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