Generally, the electronic locks adopt the AC mains rectification plus the backup lead-acid battery (to prevent power outage). This scheme is easy to introduce strong electric power to dry, destroy the working state and data of the electronic lock in the weak electric environment, and the life of the lead-acid battery is only 1 It will be replaced in ～2 years, polluting the environment, the overall structure of the lock is complex and the volume is large. When the electronic components work in the long-term power-on state, the failure rate is relatively high.
At present, some electronic locks also use a dry battery power supply scheme: when the dry battery is operated in a cabinet with a higher ambient temperature, the life is shortened and uncertain. When the ambient humidity is high (especially in a maritime climate), due to continuous use (low-power standby state) battery, the battery and the battery shrapnel are prone to electrochemical reactions, resulting in corrosion of the battery and shrapnel coating, and even contact Bad, the electronic lock is invalid.
In addition to the above common drawbacks, the electronic lock with power supply in the lock has the direct consequence that in order to ensure its reliability, routine maintenance and maintenance work during use must be increased, resulting in waste of manpower and material resources and increased management. Difficulty.
The significant advantages of the maintenance-free electronic lock are: no power supply in the lock, low power consumption (the working power is on a small electronic key), not only has the versatility, high performance of the electronic lock, but also the mechanical lock is easy to install, no need Routine maintenance, high reliability and other features.
"Maintenance-free electronic lock" can also be composed of "free-wired virtual network lock", which uses "active electronic key", that is, "wireless" way to exchange information, and can obtain most of the non-timely functions of "wired network lock". However, its reliability, ease of installation and cost are much better than "wired network lock", which can completely replace "wired network lock" in some application fields.
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High quality electronic lock / active electronic key and general electronic lock / electronic key
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High-quality electronic locks and electronic locks in general overall performance article from weaving dreams
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Attachment: About "Digital Key" and "Mechanical Key" Security "Digital Key" has an advanced semiconductor integrated circuit, generally referred to as an IC chip, which solidifies a never-ending electron (about 280 terabytes (T) A different "password" is much higher than the probability of a human fingerprint. According to the data provided by the manufacturer: If the factory producing the "electronic electronic key" produces 10 million chips of different "passwords" every day, it will take about 77,000 years of continuous production to generate duplicate codes. Therefore, the "password" has Uniqueness, complete imitation is impossible. The "password" of the chip must be read by a special computer device. If the "electronic electronic key" with advanced encryption is selected, the unlocking password can hardly be cracked and the security is extremely high.
The general "mechanical key" is only 60,000 yards, (also known as the key amount, taken from the Ministry of Public Security GT/T73-94 "mechanical anti-theft lock" standard), it is still difficult to achieve in actual production, the mutual opening rate is very High, and very easy to copy, its "security" is well known.
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