What’s Passive Lock Or Programmed Key Lock?

A passive lock or programmed key lock, as the literal meaning suggests, is a lock without a power source, such as an NFC reverse power supply lock and a passive key lock. In the industrial intelligent lock industry, a passive lock usually refers to a passive key lock.

Common passive key locks include passive key padlocks, passive key cylinder locks, passive key deadbolt locks, passive key cabinet locks, and passive key door locks, etc.

As a new type of lock, the passive key lock has many significant advantages compared with traditional locks and some active intelligent locks, which are mainly reflected in the following aspects:

1.Stability and Reliability

Free from Battery Dependence: Traditional intelligent locks with batteries often face the problem of being unable to unlock when the battery runs out. However, passive locks do not require built-in batteries, completely avoiding this trouble. They can maintain a stable working state in various complex environments, ensuring that they can be unlocked normally at any time, which greatly improves the reliability of use.

Strong Anti-interference Ability: Passive locks do not have complex battery power supply systems and related circuits, and are less affected by environmental factors such as electromagnetic interference and temperature changes. In harsh environments such as substations with strong electromagnetic interference and outdoor areas with alternating high and low temperatures, they can still operate stably and ensure the normal realization of the unlocking function.

2.Maintenance and Cost

Reduced Maintenance Costs: Since there is no need to replace batteries and maintain battery-related components, the maintenance work of passive locks is greatly reduced, reducing labor and material costs. For scenarios where a large number of locks are used, such as large-scale infrastructure construction sites and logistics warehouses, long-term maintenance costs can be significantly saved.

Initial Cost Advantage: Passive locks do not need to be equipped with batteries and related power management systems during the production process, which makes their manufacturing cost relatively low and gives them a certain price advantage in the market. This is very attractive to users who pay attention to cost control.

3.Security and Convenience

Enhanced Security Performance: Passive locks usually adopt advanced encryption technologies and authentication mechanisms. For example, an NFC lock conducts identity authentication and unlocking authorization through near-field communication with a specific device, which has a high level of security and can effectively prevent illegal unlocking and data leakage.

Convenient Unlocking Experience: Passive locks support a variety of convenient unlocking methods. For example, with NFC unlocking, users only need to bring a device with NFC function close to the lock body to complete the unlocking operation. The operation is simple and quick, improving the passage efficiency of personnel, especially suitable for places where there is a frequent flow of people and goods.

4.Environmental Protection and Durability

Environmental Protection and Energy Conservation: Passive locks do not use batteries, avoiding the pollution to the environment caused by discarded batteries. They meet the requirements of modern society for environmental protection and are a green and environmentally friendly lock choice.

High Durability: The internal structure of passive locks is relatively simple, and there are no easily consumable components such as batteries, reducing the factors that affect the service life due to component aging and damage. Under normal use, they can work stably for a long time and have high durability.