【 Weak current College 】 intelligent IC card meter specification analysis

Intelligent IC card meter is generally placed in indoor use, therefore its use environmental requirements are not high. But this water meter is normally placed in a location close to the kitchen, so have a smoke water erosion and prevent pollution. These issues are not difficult to resolve. Prevent water as long as the use of reasonable seal technology, generally meet the requirements. And prevent smoke pollution, as long as the IC card holder to do some technical processing for example together with dust cover and so can solve. Following on several important technical indicators for analysis.
1. battery life indicator.
This is an important indicator. Gas meter in this solution is not good. Some of the gas meter requires the user to a few months battery, this is not science. Today's low-power design programme has been able to make an intelligent IC card meter does not swap the battery operating time up to 8 or even 10 years. If you reach this level, the user and the water sector will be very convenient. Of course, part of the mechanical measurement meter and electric control part of life should be higher, replace the battery, you should continue to use a longer time.
2. full table service life.
The life of the entire table is a worth exploring. Because the life of the whole table in theory, the life of the shortest devices. Then, use the device with the shortest life is the? in accordance with national standards, this device is water meter, but in fact, the use of water meters are far more than the standard period of life, visible, set the standard and unreasonable. From now to the actual manufacturing, to the manufacturer promises life index up to 6 years is reasonable. But in fact, intelligent IC card meter service life of more than 10 years is possible.
3, anti moist and sealing performance indicators.
Sealing problems already mentioned above. As long as the electrical part adopts seal processing programme, plus some anti-wet processing means that reaches more than 85% of the specification should be no problem. Anti vibration performance indicators. Water meter in transport and installed it into the vibration problem in the encounter. So consider this indicator. Generally reached 1 g level is sufficient.
4. physical damage indicators.
Generally speaking, so long as the use of a good integrated shell protection measures that generally meets the protection requirements. Of course, using IC card meter, the deck is the easy part, this is a problem that cannot be resolved. So you want to consider a software protection so that an attack on the deck, meaning even if the deck is broken, do not affect IC card other parts of the meter is working properly. But in actual use, the problem is not serious. Because the IC card meter is installed on a user's home, the use of targeted and water meter is the user's property, without special reason, the user and does not attack the instrument. Cannot be considered unrestricted strengthening instruments of aggression, but rather to the intentional infliction of destruction can be found and punished accordingly.
5, anti-electromagnetic interference indicators.
Electromagnetic interference is not a significant indicators. Home environment seldom encounter higher than 2000 volts electrostatic field in such a situation. The normal use of the electromagnetic wave intensity is also not possible to reach will hurt people and other electronic products, so this indicator set at 2000 volts is enough.
6, prevention of freezing specification.
Anti freeze problem is primarily a custody and use methods, for example, in the frozen temperature zones, drainage treatment needs to be done to prevent ice rose, this clearly is a management problem. Temperature is below zero regardless of the meter, because water is frozen and cannot be measured. However, in the transport and storage process, you may encounter far below zero temperatures, this will require consideration. This should be a reasonable indicator of value was-25 ° to + 50 degrees, within this context should not be meter Frost, when the temperature returns to normal temperature, water meter should work properly.
Conclusions:
With the continuous development of science and technology, intelligent IC card meter will be constantly developed. For example, now that the old meter on signal mode, will be advanced flow signal extraction equipment, machinery and mechanical display partial metering will be eliminated and table and valve will be concentrated in one and so on. Overall, the intelligent IC card meter is an advanced metering instruments, this advanced instrument to promote the use of weapons of mass will promote the Chinese for water management of the modernization process. China in the areas of advanced development will make this the perfect metering mode receive priority, and has the potential to become a competitive product exports to other countries.