The working principle of smart water meter
1. Prepaid water meter with ic card.
The ic card prepaid water meter is a kind of smart water meter that uses ic card technology to realize payment before water. Its working principle is to use the ic card to insert the card or swipe the card. The information in the ic card is identified and downloaded by the microcomputer system module, and the water meter opens the valve to release the water. When the amount of water in the water card is low, an alarm will sound to remind users to purchase water in advance. Ic card prepaid water meters can generally achieve step water price function, one meter multi-card function, anti-running dripping function, etc.
2. Intelligent remote water meter.
Intelligent remote water meters are divided into many types. Now the more mainstream classification method is to classify according to the data transmission method, which is divided into wired remote water meters and wireless remote water meters. Wired remote water meters have different types, such as pulse and photoelectric. Wireless remote water meters. Now the more mainstream is gprs remote water meters. Let's talk about the working principle of gprs remote water meters. The gprs remote water meter is equipped with a gprs wireless transmission module on the basis of the bus water meter, and the water meter data is transmitted to the remote meter reading system through the gprs signal. Generally, the wireless remote water meter can realize remote meter reading, remote valve opening and closing, etc.
In addition to ic card prepaid water meters and remote water meters, there are many smart water meters with different principles. At present, the mainstream water meters on the market are ic card prepaid water meters and wireless remote water meters.
Different water meters work differently. When choosing a water meter, the water management department can choose the type of water meter that suits them according to their needs. In fact, a good water meter can save a lot of unnecessary manpower and material resources in the later stage. For example, ic card prepaid water meters can be sold first. The water is reused, and there is no need to read the water meter anymore. The wireless remote water meter can remotely close the valve of the water meter at any time, which also saves a lot of labor costs.