A car key with adjustable remote control distance
A remote control distance and car key technology, which is applied in the field of car keys, can solve problems such as fixed unlocking/blocking distance, inability to set, and mis-unlocking, and achieve the effect of avoiding the risk of mis-unlocking
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[0011] In order to further explain the technical solution of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings.
[0012] see figure 1 and image 3 As shown, the car key with adjustable remote control distance includes a first power transmission circuit 2, a crystal oscillator circuit 3, a key circuit 6, a controller unit 5, a second power transmission circuit 1, a power selection circuit 4 and a key for unlocking and unlocking. Three buttons for trunk, lock or remote car search. Both the first power transmitting circuit 2 and the second power transmitting circuit 1 are commonly used transmitting circuits for car keys at present. The second power transmitting circuit 1 makes the control distance of the second power transmitting circuit 1 larger than the control distance of the first power transmitting circuit 2 by matching different component parameters. The crystal oscillator circuit 3 is a circuit t...
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