Cities make life better, and wisdom makes life happier. As China's urbanization process accelerates, the traditional urban development model has brought many drawbacks, and informatization has increasingly become a breakthrough in resolving urban development problems. Therefore, the emergence of smart cities has provided a new model for urban development. It strengthens urban planning, construction and management by comprehensively applying modern science and technology, integrating information resources, and coordinating information applications. It is a new type of urban form formed under the support of new generation information technologies such as the Internet of Things and cloud computing. It can be said that building smart cities is an inevitable choice for treating "urban diseases" under the conditions of an information society.
In early 2013, the Ministry of Housing and Urban-Rural Development designated the first batch of 90 national smart city pilots, which were regarded as a new era and vane of China's urbanization process. The three major network operators have also reached strategic cooperation agreements on smart cities with hundreds of local governments, and relevant industries and companies have also taken action to join this construction wave.
With the development of the economy, the number of tap water meters in my country has continued to expand, but meter reading and charging issues have become a major problem that plagues urban tap water companies. At the same time, with the rapid development of building automation, automatic meter reading systems, remote monitoring alarm systems, and home security systems are all indispensable parts of building intelligent systems and are being adopted by more and more modern buildings. At present, most cities in my country adopt the method of manual meter reading and charging. Since it is necessary to enter the house to read the meter, it causes inconvenience to both users and meter readers, and cannot save work efficiency to the greatest extent. In addition, the leakage rate of urban water supply pipe networks in my country is very serious. The leakage rate in most cities is between 20% and 30%. The lack of effective supervision of water meters is an important reason for the high leakage rate. Due to the lack of effective statistics of water supply data, water supply management departments cannot make more scientific and reasonable decisions. The relatively high cost of software development and maintenance restricts the information construction of water affairs. Based on the above problems, it is very necessary to develop a system to solve problems in meter reading and water supply. In this context, how to set up a suitable platform so that the building infrastructure can connect the data network and the control network without "gap", and reflect the wireless, intelligent, comprehensive, and interoperable integrated intelligent system of management will become the focus and development direction in the future.
§Product functions in the era of the Internet of Things§
The future is the era of mobile Internet, and mobile terminals and the Internet of Things will also develop in an integrated manner. Water, electricity and gas meters with Internet of Things technology can be paid directly through mobile phones; once the water, electricity and gas meters at home leak, leak electricity, or leak gas, a text message will be automatically sent to the user's mobile phone through the sensor on the water, electricity and gas meter. This energy efficiency management based on the Internet of Things is expected to be gradually implemented in key cities across the country. Jingda Company, which has been focusing on the intelligentization of metering instruments for 20 years, is one of the first companies in China to focus on the research and development of Internet of Things intelligent water meters, and is a representative company for smart water meters entering the e-era. When the concepts of smart cities and the Internet of Things were still unknown, it had developed various leading smart card water meters in China, leading the development of smart water meters in China. With the popularization of the concepts of smart cities and the Internet of Things, Jingda has begun to prepare for the future. Adhering to the product planning idea of "producing one generation, developing one generation, reserving one generation, and brewing one generation", it has successively launched smart water meters suitable for the Internet of Things platform, including: electronic direct reading remote transmission and remote control type, photoelectric direct reading remote transmission type, wireless remote transmission water meter and smart remote transmission large-caliber water meter and other products. The above products transmit data information remotely via GPRS or Ethernet through the data concentrator (as shown in the figure), realizing the functions of wireless data transmission and wireless management, including:
Schematic diagram of wireless remote meter reading and wireless automatic networking
●Real-time monitoring + real-time valve control + prepayment function
Jingda wireless remote transmission smart water meter can grasp and monitor the water consumption of each household at any time. Once there is a surge in water consumption due to pipe bursting, or the water consumption of large water users is too low, the system will promptly send a reminder to the meter reader, so that it is convenient to understand the information in time and take countermeasures. The meter reader only needs to open the background management system to retrieve the user's water consumption information and process the data, which is convenient, fast, accurate and efficient.
The inability to collect water fees in time has long been a "chronic disease" that has troubled water management departments. The Jingda remote transmission smart meter system has effectively overcome this chronic disease from the perspective of functional settings. When the water volume reaches the alarm value or is exhausted, the valve is automatically closed to achieve prepayment control, which can realize the transformation from staff door-to-door meter reading and charging to users paying at the business office themselves.
●Tiered pricing function
The country is implementing a tiered water price policy. The implementation of this measure has higher requirements for the pricing system of water meters. The difficulty of tiered water pricing lies in accurate measurement and accurate meter reading. Since Jingda Company uses a wireless remote real-time meter reading system, it has the characteristics of "two highs and one low", namely: high measurement accuracy, high sensitivity, and low starting flow, which completely solves the problem of accurate meter reading. With the intelligence of the city, the application of this wireless transmission of water meter data function is in line with the four characteristics of "smart city": comprehensive and thorough perception, broadband ubiquitous interconnection, intelligent fusion application, and people-oriented sustainable innovation.
● SMS reminder function
When the residents' prepaid water fee reaches the alarm value or is exhausted, the meter reader will send payment reminder information to the user through the system. This humanized measure can not only improve the management efficiency of the water company itself, but also bring convenience to the lives of local residents. With the acceleration of the integration of the three networks, this convenient and efficient management method will benefit people's livelihood faster and better.
§Successful application model of smart city§
With the acceleration of urbanization, most of the rural population has flocked to urban areas, and key urban systems such as water, electricity and transportation have been overwhelmed and nearly collapsed. For urban residents, the basic requirements of a smart city are that they can easily find the fastest commute route, that water and electricity are guaranteed, and that streets are safer. Today's consumers are increasingly dominant, and they hope that their quality of life requirements can be met while cities bear the influx of population and achieve economic growth.
"Good peaks rely on their power to send me to the sky." The Internet of Things + smart meters have achieved efficient management of urban water resources, which is conducive to the protection of water resources, the efficient management of relevant management units, and the convenient life of the people. It is an innovative move that achieves three goals at one stroke. Take Jingda as an example. The company has taken another step forward in the journey of practicing smart cities, seized the opportunity, and took advantage of the development of the Internet of Things. Its remote meter reading system (wired and wireless) is mainly used in residential areas, factories, etc. Among them, the wireless meter reading system is especially suitable for residential areas or factory areas where it is not convenient to set up wired lines. So far, Jingda smart meters have been used in more than 20 provinces, municipalities and autonomous regions across the country, and are widely used in local water companies, communities, schools, hospitals, and large central enterprises such as PetroChina, gaining a good product reputation and brand reputation, and becoming a model for the application of smart water meters in the "e" era. Today, more and more smart water meter companies are leveraging the concept of the Internet of Things to start product upgrades and are making their due contributions to the advancement of smart cities.
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