Cracking and deformation of building structures is a common technical problem all over the world. Structural tilt deformation is the main feature that leads to the instability and collapse of buildings, especially the buildings with poor integrity or damaged, the internal stress distribution is uneven, once the deformation and tilt, the internal stress will change rapidly, local load-bearing structure fracture failure will be associated with the rapid collapse of other parts.
The Tianjin Construction Committee, in accordance with the requirements of the municipal government to actively promote the “Internet + Government Services”, further enhance the implementation of dilapidated housing reform policies. Although the house can be regularly tested and observed in the conventional way, the cost of manual monitoring is usually high, the influence of human factors is difficult to avoid, time-consuming and labor-intensive, and it is also difficult to realize real-time data collection and analysis, to timely and effectively ensure the safety of the house.
The above problems can be avoided by an automated data acquisition scheme (tilt sensor real-time automatic detection system), which is currently the most advanced monitoring method. The ZC tilt sensor features continuous reading, automatic recording and data transfer. When monitoring the tilt angle changing of the upper level of the building, the sensors can be placed on the floor of the building or on the floor of the floor to be observed; When monitoring the foundation tilt changing, the sensor can be placed on the base surface to analyze the degree of the tilt changing of the building by monitoring the horizontal dip change of the floor or base surface.
The old residential districts in Hexi District of Tianjin used manual monitoring to monitor the condition of the old houses. Now ZC’s latest LoRa wireless tilt sensor (model ZCT800ML-215R) + gateway (model ZCT800ML-GW) is used instead of it. The LORA wireless tilt sensor enables automatic acquisition and upload of tilt changing data, allowing the manager to view the data at any time on the computer or mobile phone. And the low power support 1 battery can be used around 2-3 years, 1 small sensor provide the protective umbrella to the people living there, A little action, a big love. The LoRa gateway has the advantages of automatic data acquisition, wireless communication, low power consumption, and automatic network access.
The wireless LoRa tilt sensor solution provided convenience for the monitoring of building safety conditions in the old residential area of Hexi District, Tianjin, and also provided experience and technical support for the settlement of similar unsafe house monitoring programs, which was highly evaluated by the local government.