When it comes to passive smart padlocks, one has to mention the keyword "passive" . So what does this passive mean? As the name implies, there is no power supply. The passive device means that the device does not use power supply . It seems a bit weird, and even violates the principle of physics energy conservation .
Passive devices get rid of the shackles of power
So what do passive devices rely on to obtain energy to maintain normal operation? Generally speaking, there are several ways: is realized by collecting radio wave energy in the surrounding environment (such as 4G signal, 5G signal, wifi signal, Bluetooth signal), each kind of radio signal is one kind Energy transmission; collects solar power supply , which can obtain a lot of electric energy (the disadvantage is that the system is complicated and high cost); This method also has some more applicable scenarios, such as switches, remote controls, etc. But this kind of direct hands-on approach,Obviously, it is not suitable in most scenarios.
And "passive lock" is precisely one of the best passive devices. It is a new important branch in the field of electronic locks. The lock body integrates smart chips, lock body is passive, key-powered, and two-way identity authentication is completed when unlocking . The lock body adopts standard size design, which is fully compatible with the installation method of traditional locks. electronic lock passive design, no power supply and communication wiring, simple and convenient installation . The electronic lock password is recorded in the electronic key, and the electronic key cannot be copied, which ensures the security of the lock.
Linghang Electric Smart Padlock
In the past, ordinary active locks used by people had a series of inherent problems, such as: Complexity, generalization and standardization are low, and the failure rate is high. The emergence of passive locks has better solved these problems. The necessary working power of the smart lock is moved to the electronic key. When the "active electronic key" is in contact with the "passive electronic lock", "there is The power source and unlocking electronic password on the “source electronic key” are simultaneously imported into the “passive electronic lock” with the built-in microcomputer. If the two passwords match, the lock can be opened. It is a great boon for the communication and power fields that require a large amount of management and use of locks, and I believe that such smart locks can reach thousands of households like ordinary locks.
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