IC card prepaid smart meter normal life of residents will inevitably result in IC card prepaid smart meter 2, completed the purchase of electricity recharge card, be sure to re-insert the meter, the amount of electricity charged to complete the process, the power supply can be restored to normal. This process requires the user to distinguish themselves on the meter display prompts time as required for proper operation. If you make a mistake, it will cause damage to the power purchase card, affect use. For the older elderly people living alone, or no self-operating experience of the users, the degree of difficulty of the work as much as a computer entry exam. 3, when the electricity balance is less than forthcoming, the meter will continue to flash red bright screen prompts. But meter residential buildings are generally fixed position on each floor, which prompted only when seen through the meter will be found. Unless the user has a good memory, when the estimated balance of nearly went to check on their own initiative, otherwise the prompt will not achieve real-time for most users reminder. Once the balance is insufficient, the power supply will be interrupted immediately, there is no buffer room. Imagine if this happened in the payment outlets off non-working hours, which for the normal life of the residents will inevitably cause great distress. Protection function: sexual assault or non-mechanical power, the information is not lost; Automatic maintenance function: automatic opening and closing valves regularly to prevent scale deposition statement; a card table: a perfect encryption system, water meter data can be kept for 10 years. Users can always view water accumulated water, the remaining water (the remaining amount) and the share of water, etc.; pre-warning function: According to needs of individual users to set the alarm, overdraft of water, when the water to the set alarm or overdraft, the meter will automatically prompts the user to purchase water shut-off valve. Ago, IC card prepaid water use, there are some security issues, security issues set forth herein, refers to the pre-paid water meters may exist "technical risks" may result in "loss of control" caused by the water "misappropriation" it will be use technical loopholes that may exist, or for commercial burglary illegal water services. In fact, the ability to theft of water, anti-human attacks mainly depends on the software's ability to identify the various parts of the body with the table and the structure of the controller enclosure sealed extent should adopt high mechanical strength, airtight performance, anti-aging ability of the material as table body and controller shell material. But how to strengthen supervision or technically completely eliminate unregulated environment is still in the future need to vigorously study. More IC card prepaid smart meter details, please consult the official website http://www.sdznsdb.com/, here represented by the products you need, the more you are satisfied with the product, quality assurance, and our product is your right choice , with your cooperation is our biggest goal!