Talking about the principle and advantages and disadvantages of photoelectric direct reading remote water meter
With the gradual expansion of the water user meter renovation project, the workload of meter reading charges continues to increase, and the traditional manual meter reading method is increasingly unable to meet the needs of development. In recent years, automatic meter reading technology has been vigorously advocated and applied. Automatic meter reading technology has also experienced a process from scratch, and the technology is becoming more and more mature.
The photoelectric direct reading remote hot and cold water meter specially produced and developed by SH-METERS Company is composed of adding photoelectric coding sensor to the ordinary wet water meter. Using the advanced sensor technology, the carry and meter reading are accurate, the minimum is 1 ton and the maximum is 9999 tons. This article further discusses the working principle, advantages and characteristics of our Yidu smart photoelectric direct reading water meter, and hopes to provide some help for those who need it.
1. The working principle of the photoelectric direct reading remote water meter.
There are two types of direct-reading meters currently on the market, namely, direct-reading meters and reflective direct-reading meters. A light-passing hole is left on the opposite-beam character wheel, and a light-emitting tube is installed on one side of the character wheel, and a photosensitive tube is installed on the other side. After the light-emitting tube is powered on, the light emitted by the light-emitting tube is irradiated on the photosensitive tube through the light hole, and the photosensitive tube performs photoelectric conversion to obtain the corresponding signal potential. The number of light-passing holes and each group of light tubes is designed after strict calculation. Turn the word wheel, and at each position of reading 0-9, the position and number of photosensitive tubes that obtain light are different, so coding is performed. The working principle of the reflective direct reading meter is the same, the difference is that there is no light hole on the character wheel, but a reflective barcode is printed on the outer ring of the character wheel. The light emitted by the light-emitting tube does not directly shine on the photosensitive tube, but reflects The barcode is reflected on the photosensitive tube.
2. Features of photoelectric direct reading water meter
1. Accurate reading: The real-time reading at any time is consistent with the mechanical reading of the water meter, no built-in power supply and backup power supply are required, and data will not be lost due to power failure and network failure.
2. Long service life: sampling using photoelectric sensing technology, no mechanical contact and mechanical action, no failure caused by vibration caused by pipes or other factors.
3. Strong anti-interference ability: no magnetic components are used, no interference from ferromagnetic substances, and no vibration caused by pipes or other factors.
4. Safety in use: The meter adopts weak current line communication. The strong electric power supply is physically separated from the water meter, and the insulation strength is high to ensure safe use.
5. Easy installation: the base meter part of the direct reading water meter is the same as the installation specification of the ordinary mechanical water meter, and the installation is easy.
6. Reliable opening and closing of valves: the internal use of waterproof reducer, 3500 speed ratio, and all use of metal gears, large torque, high reliability, can open and close the valve normally under 1.0MP water pressure, can avoid ordinary reducer in the ball valve knot. After scaling, the switch valve fails (valve-controlled water meter).
Advantages and characteristics of traditional card table
1. Solve the difficulty of meter reading at home, and there are many meter reading personnel; solve the inconvenience of IC card supervision, the existence of multiple card selling software, and the phenomenon of counterfeit cards and counterfeit cards. Management is difficult. Photoelectric direct reading water meter advantage point "remote meter reading"
2. To solve the inaccurate meter reading, the advantages of photoelectric direct reading water meters are "direct reading"
3. Solve the complex wiring, the advantages of photoelectric direct reading water meter "M-BUS wiring"
4. Solve the problem of 24-hour power supply, data loss after power failure, short backup battery life, photoelectric direct reading water meter advantages and characteristics "meter without power supply"
5. To solve the problem of a large number of collectors, a large amount of maintenance, and the need for external power supply, the advantages of photoelectric direct reading water meters are "manual centralized meter reading does not require external power supply".
In recent years, with the implementation of water-saving policies such as "ladder water price" and "one meter for one household", the market demand for smart water meters is also expanding.SH-METERS closely follows the development of communication technology and Internet technology, continuously develops and improves digital remote transmission network water meters, and helps customers implement data analysis, hosting and other services, and provides products and technical support and services for customers to build smart water affairs.