Computer key for anti-misoperation safety system of transformer substation

Abstract

The invention discloses a computer key for an anti-misoperation safety system of a transformer substation. The computer key comprises a shell, a fixed rod, a rotating rod and a code reading module, wherein the code reading module comprises a code reading coil, a code reading circuit and a module shell, the code reading coil and the code reading circuit are arranged in the module shell, the code reading coil is used for generating code reading electromagnetic waves, and the rotating rod is used for driving the rotating rod to rotate, the code reading circuit is used for reading a code and outputting a code reading signal; and the insulating ring is arranged between the rotating rod and the code reading module, the insulating ring is arranged on the rotating rod in a sleeving manner, and thecode reading module is arranged on the insulating ring in a sleeving manner. By combining the characteristic that the stray capacitance is reduced by the insulating ring and improving the structure of the computer key, the code reading distance and the code reading reliability of the computer key are increased on the premise that the size of the computer key is not increased.

Description

technical field [0001] The invention relates to the technical field of electronic unlocking, in particular to a computer key used in a substation anti-malfunction safety system. Background technique [0002] In the field of anti-malfunction safety system of substation, computer key plays a pivotal role. However, due to the diversity of locks, computer keys, especially the versatility and reliability of the key code reading ability, pose a high challenge. [0003] The principle of computer key code reading in the prior art is mainly the near-field RFID technology. Due to the limitation of the power and volume of the computer key, the reading distance of the near-field RFID is limited, and the code reading is often unstable or even impossible to read, resulting in the failure of the computer key. Unlock normally. [0004] In the prior art, there is a computer key that adopts the design of changing the shape of the coil to increase the reading distance, but this change usuall...

AI Technical Summary

Problems solved by technology

However, due to the diversity of locks, it poses a high challenge to the versatility and reliability of computer keys, especially the key code reading ability.

[0003] The principle of computer key code reading in the prior art is mainly the near-field RFID technology. Due to the limitation of the power and volume of the computer key, the reading distance of the near-field RFID is limited, and the code reading is often unstable or even impossible to read, resulting in the failure of the computer key. Normal unlock

[0004] In the prior art, there are computer keys that change the shape of the coil to increase the reading distance, but this change usually increases the overall size of the computer key, which affects the overall appearance of the computer key and the convenience of operation.

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