China's water meter industry development

Water meter revolution - non-contact RF card technology The non-contact IC card (RF card) uses patented technology to fill the "industry standard" space and exchange data with wireless sensing. The advantages are: 1 There is no mechanical contact, so No wear and corrosion problems. 2 circuit sealed, completely solve the moisture, waterproof problem. 3 There is no exposed electrode, so it can effectively resist external strong interference. This is the unique design of the product. 4 No direction when used, can swipe the sensing surface in any direction, avoiding the problem that the contact IC card can only be used in one direction, and also avoiding the difficulty of inserting the card due to the narrowness of the card socket of the contact IC card. Operation is difficult. 5 The advanced nature of data encryption performance and security performance is more prominent, and it is extremely difficult to decipher and copy. This card uses a two-way authentication mechanism. The reader verifies the legitimacy of the IC card and verifies the legality of the reader at the same time. Most of the common contact IC cards are one-way authentication. It is easy to duplicate and even appears as a "black market card." , to the management department has brought huge economic losses. 6 Each card has a unique serial number. The serial number has been fixed before the product leaves the factory. It cannot be changed. The uniqueness of the serial number makes it extremely difficult to crack. Due to the above advantages, non-contact IC cards are widely used in key areas such as residents' second-generation identity and urban public transportation card. Therefore, the application of RF card technology to water meters will be a great revolution for smart water meters.

The sensitivity of the new water meter is increased by 100 times. A high-tech water meter that combines the “water metering water meter” with the “photographing direct-reading remote metering system” increases the metering sensitivity of the meter's initial flow rate by 100 times. Can be recorded truthfully. This high-sensitivity water meter supported by the Ministry of Science and Technology was developed by Beijing Beibao Electric Co., Ltd., a Sino-U.S. joint venture. It has obtained the first prize for national patent technology invention and has already been put into use in some domestic provinces and cities. Its characteristic is that it increases the flow meter start flow measurement from an average of 10 liters/hour to 0.1 liters/hour, and the measurement sensitivity is increased by 100 times. The installed “electronic eye” will take the data such as the user table number, water time, and water value. Pass, to achieve a thorough direct reading, reading accuracy rate of 100%. It is understood that at present, the flow metering capacity of water meters sold in China is 8 to 12 liters/hour. In other words, if the leaking water does not exceed 8 to 12 liters per hour, the water meter will “turn a blind eye” and will not walk. In view of the problems of low sensitivity of meter reading, error-prone meter reading, and interference with meter reading, the National Science and Technology Development Promotion Center of the Ministry of Construction had previously promoted this high-tech water meter to various cities across the country, and added the “Direct Reading Remote Reading Meter”. The system has been included in the ministry's ministerial standards. At the same time, the company's simultaneous development of high-tech electric meters, gas meters, and heat meters has also been included in the well-to-do housing product by the Ministry of Construction.

The latest high-precision leak-free water meter has been successfully tested. The characteristics of the meter are as follows: 1 The meter is a combination of a normal meter and a mechanical valve. The meter has not been modified. 2 Mechanical valves and magnetic valves have exactly the same performance, but they do not have the disadvantages of magnetic valves. 3 Practice has proved that even when the faucet is in a state of dripping water, the water meter's hands can still respond accordingly, showing an intermittent beat, and the number of drips is recorded as it is. 4 The mechanical valve has stable performance, long service life, simple structure, easy manufacturing, low cost, small size and the total length of the water meter is still within the standard length of the water meter.

The three directions of development of water meters at home and abroad At present, the technology and technology of water meters at home and abroad are constantly being updated and gradually developed to the following aspects: 1. The combination of remote outdoor reading and computer property management. There are broad prospects for the development of remote meters, centralized reading systems and secondary meters. 2. IC cards, TM cards (smart card type) water meters and coded water meters will become mainstream products. This type of water meter is applicable to the management system under the condition of “pay for water after payment”. China's current water bills are difficult to collect, and many areas and cities have a large number of unpaid bills. In order to change this situation, water companies have welcomed the use of water meters of this structure. Therefore, dozens of companies in China are trying out such water meters. 3. The development of special water meters, such as the use of heat meters (or heat meters), sewage meters, and large flow meters (1 meter or more), is also a trend in the development of water meters at home and abroad. The heat meter is an upgrade of the hot water meter. It is more scientific and reasonable to measure the heat meter instead of the hot water meter. Now that the industrialized developed countries and regions have mass production, most countries are still under development.

Remote meter reading, automatic payment - Shenyang 200,000 water meters will be informed from the Shenyang Water Supply Corporation, the city's water meter project kicked off, Shenyang, a total of more than a million pieces of water meters will be "stepping out" from the residents of the outdoor According to the relevant person in charge of the Water Supply Corporation, the city's water company will promote the GPRS intelligent monitoring and control system in the city. By 2006, the city will cancel meter readers and implement remote monitoring and copying. The GPRS intelligent monitoring and control system refers to the installation of mobile phone base stations in the city's main pipeline network and residential areas. The mobile GPRS network can remotely monitor the flow, flow rate, pressure, and water quality of the water pipe network. In addition to monitoring the water and water usage of the water pipe network, the system can also detect theft, leakage, and pipe network accidents in a timely manner. It can also be used to monitor the discharge of sewage.