After the 2011 earthquake, the city of Christchurch, New Zealand, began rebuilding the city and seized the opportunity in the reconstruction process to install built-in sensors in a range of municipal facilities, from water quality assurance to traffic flow detection. The City of Christchurch may use the opportunity of reconstruction to build a new city, not only to rebuild but also to develop the potential of the Internet of Things to improve the efficiency of the city's operations.

 

For cities, an infrastructure equipped with sensors can receive and transmit data, which can better reduce city expenses and promote sustainable development of the environment. For example, water pipes monitor leaks by installing sensors. In the port of Hamburg, Germany, sensors such as roads and bridges are equipped with sensors to monitor ships and cars in order to reduce the environmental impact of port operations.

 

Mr. Ren Hansen, chief senior advisor of Danish engineering design and consulting firm “ Ramboll ” , said that embedding a sensor in the parking lot allows nearby drivers to know the nearest empty parking space. He said: " This is an efficient tool because it saves drivers and passengers time, and reduces air pollution and energy consumption. "

 

If the Internet of Things can improve efficiency and productivity, then its installation can also be relatively inexpensive, especially when it is built and installed together with large-scale reconstruction projects. " Compared with the actual infrastructure construction, joint construction can achieve the lowest cost consumption. This is a good opportunity to try new things, " said Ms. Li Daodi, head of the smart city advisory group in Christchurch.

 

One important piece of potential in the construction of infrastructure for excavating the Internet of Things is street lighting facilities. After the installation of a motion detector, the street light will only be illuminated when passing pedestrians and vehicles, thereby saving energy. Moreover, street lights have a high degree of advantage. Sensitive equipment installed above vehicles and pedestrians can extensively monitor most areas of the city. These devices are also connected to the power supply, which means that from meter and car charging stations to traffic lights and car parks, street light detection equipment can be used to monitor everything in the field of view. In addition, sensors can detect noise levels that may reflect unusual changes in crime or social turmoil.

 

“ Urban space lighting is an important infrastructure for smart cities. ” Feldman Modison said that he is head of the Danish outdoor lighting laboratory secretariat, the Danish consortium is developing and testing Copenhagen smart lighting system.

 

“ We have developed a smart city lighting bar that gives you more space to install smart applications, electronic devices and software control systems on the bottom. Each lighting device has a dedicated IP address that enables the lighting device to interact with ours. Dialogue and feedback, " added Modison.

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