[China Instrument Network Instrumentation Industry] On June 10th, from the news of State Grid Shanxi Electric Power, the company is accelerating the collection and construction of “Four Tables”, and the construction companies in the province have been fully stationed, starting 2,360 on-site and planning this year. At the end of the year, 33,500 households will complete the construction of the “four-in-one” project;
On June 3, Gansu Jiaji District officially initiated the demonstration project of “Four-One-One” model demonstration project. At present, it has completed on-site foundation construction, system commissioning, data on-line and meter file verification, and the collection success rate reaches 100%. It is expected that all pilot construction work can be completed in mid-October;
On May 28, Inner Mongolia Hulunbuergenhe Power Supply Company worked hard for many months, and the successful implementation of the “four-in-one-in-one” project for water and electric heat was successful. Initially, 720 pipe-laying cables and meter installations have been completed. Judging from the current process Targets can be completed on time;
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These are the real cases of the recent four provinces and cities to promote copying.
Seeing here, Xiao Bian can not help but think that although the promotion process is not the same everywhere, but also committed to the construction of meter collection, especially the installation of pre-mart meter, smart meter has accumulated valuable for the next four tables integrated promotion experience of. The “Guidance on Promoting the Development of Smart Grids” issued by the National Development and Reform Commission in July last year showed that it is necessary to improve the sharing mechanism of information resources in the coal, electricity, oil, and gas fields, support the collection of water, gas, and electricity sets, and build cross-industry energy sources. Run a dynamic data integration platform to encourage shared reuse of energy and information infrastructure. So, how much do you know about four tables?
Four tables and two things
At present, the four-sheet collection copy mainly uses the existing acquisition platform of the power system to realize integrated remote metering of metering data such as water, electricity, gas, and heat. With the popularity of the Internet of Things and intelligence, this has become a new type of energy service. Mode, an important means to fully support the construction of smart cities.
Through the establishment of a complete automatic meter reading system, the automatic meter reading and management of water, electricity, gas, and heat meters are conducted to truly solve the problems of manual meter reading, improve efficiency and service quality, and make the entire meter reading. Work on a new stage, establish a scientific and applicable management model for meter reading fees.
The smooth implementation of the entire promotion process cannot be separated from the favorable policies of all parties. For example, in the "National Development and Reform Commission, National Energy Administration Guidelines on Promoting the Development of Smart Grids," which was promulgated last year, it was clearly proposed to support the centralized collection of information on water, electricity, gas and heat. However, from the operation point of view, water, electricity, gas, heat four watches belong to different industries, have different corresponding instrument standards, simple fusion can not achieve all the benefits brought by copying. The establishment of a unified standard is still a crucial step in the process of realizing the construction of the "four tables".
How to Reflect Four Tables in the Pilot Process
Changing the method of meter reading involves all aspects, but the most affected should be resident users and meter readers.
“The meter readers came to the door to read the meter, sent it to their homes on two days, and then paid to the business outlets. This day passed most of their lives and said that they would change it.” Zhang Niu, a 64-year-old master of this year, had just heard about the acceptance in the community. When the "four-in-one" transformation was not understood at all.
Because the billing period and the billing date of the three companies are all different, Lao Zhang received four bills each month, and at least received one bill. For the four bills can be paid on time, Lao Zhang had to run back and forth four times a month, which became an annoyance of Lao Zhang. The combination of four forms, so that the old Chang read a dozen years of "paid through" changed, four bills combined a bill, to Lao Zhang's contribution to the road to start a "subtraction." Through the establishment of information sharing mechanisms for water, electricity, gas, and warm areas, the implementation of intensive and large-scale remote meter collection can bring convenience to residents' lives and truly change their lifestyle.
For meter readers, the convenience brought by the popularity of smart meters freed their hands and greatly increased work efficiency. “Most of them are private houses and the water meter is buried under the door.” Zhou Gang, the meter reader, hooked the small steel bar to the hole in the cement plate and pulled it along the edge of the manhole cover. The weight was 40 to 50 kilograms. The manhole cover was opened. Zhou Gang sprayed water on each of the water meters one by one with a spray bottle, and brushed the water meter dial with a brush. The numbers on the dial could be seen clearly, and the readings were entered into the hand scanners one by one.
"It is said that in order to realize the copy of the four tables, the water meter and the gas meter must be intelligently reformed first, but they have always felt that the change of the table has been faster since they were changed," said residents of the city.
Judging from the above reaction, the convenience of the four forms of copying is recognized, but there are still questions to be resolved in the popularization, which requires the power companies to guide long-term to dispel user doubts, popularize more smart table knowledge, and at the same time to address common issues. Constantly optimize related services.
Dry goods"
The details to be solved during the progress of the four-table copying work:
Specification of installation dimensions of new meters The existing water gas heat meters, especially water meters, allow more dimensions in the same size country. Although there are recommended sizes, many manufacturers have their own convenience, غير مجاز مي باشدt savings, technical differences, etc. Considering factors, there are often things that can't be replaced with one another in the market for the same specification. Smart meters are particularly serious.
Specification of water vapor heat meter electrical parameters Take the M-BUS bus water meter as an example. Many manufacturers' engineers did not strictly comply with the international M-BUS standard when designing the meter, and the quiescent current of the meter was quite different. In the actual test process, Some manufacturers have even reached a quiescent current of 4mA (far more than the specification of the quiescent current <1.5mA); the meter's response time, valve control current, power supply characteristics and other differences in the field is also greater. These factors will greatly affect the carrying capacity and electrical compatibility of the four-table collection site-reading process, which will seriously hinder the realization of the four-table collection of site-to-site interconnection.
The water vapor heat metering protocol is mostly compliant with the 188-2004 Department of Housing and Construction. Different manufacturers have different understandings of the protocol, and some manufacturers use the manufacturer's own protocol, leading to the actual operation process. Can not achieve interconnection and interoperability.
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