CN113160457A - Refitting and upgrading method of automobile key and automatic unlocking device - Google Patents
Refitting and upgrading method of automobile key and automatic unlocking device Download PDFInfo
- Publication number
- CN113160457A CN113160457A CN202110308428.2A CN202110308428A CN113160457A CN 113160457 A CN113160457 A CN 113160457A CN 202110308428 A CN202110308428 A CN 202110308428A CN 113160457 A CN113160457 A CN 113160457A
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- Prior art keywords
- circuit board
- module
- key
- automobile key
- wireless
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
- G07C2009/00507—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function
- G07C2009/00539—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks keyless data carrier having more than one function anti-theft
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00968—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys shape of the data carrier
- G07C2009/00992—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys shape of the data carrier mechanical key
Abstract
The invention relates to a method for modifying and upgrading an automobile key, which is additionally provided with an intelligent control circuit board, a wireless transmitting module and a wireless receiving module, wherein the wireless receiving module is arranged on the intelligent control circuit board; when in refitting, the circuit board of the original automobile key is detached and taken out; then, a special power line and a key wire harness are correspondingly welded with the functional keys on the original automobile key circuit board and the terminals of the power supply, and then the special power line and the key wire harness are fixedly connected with the intelligent control circuit board, and the wireless transmitting module is arranged in the automobile and connected with the power supply; the wireless receiving module receives the signal transmitted by the wireless transmitting module, the intelligent control circuit board controls the original automobile key circuit board to output an unlocking signal, and the automobile opens the door; the wireless receiving module can not receive the signal transmitted by the wireless transmitting module, and the intelligent control circuit board controls the original automobile key circuit board to output a locking signal, so that the automobile is closed.
Description
Technical Field
The invention relates to the technical field of automobile keys, in particular to a method for modifying and upgrading an automobile key and an automatic unlocking device.
Background
At present, some automatic unlocking technologies for automobiles exist, but the technologies are all that the electric control part in the automobile is changed, the automobile needs to be disassembled, and due to the fact that the control mode is completely different from the original unlocking mode of an automobile key, the control system program in the automobile controller needs to be copied and modified to achieve unlocking control, but the mode brings great potential safety hazards, is limited to the system improvement of automobiles by automobile manufacturers, and is not suitable for general improvement of automobiles of 4S shops and end-use customers.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method for modifying and upgrading an automobile key, aiming at the above-mentioned defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for modifying and upgrading automobile key is provided, which comprises the following steps
The method comprises the following steps: the circuit board of the original automobile key is detached and taken out;
step two: leading out the functional keys on the original automobile key circuit board and the terminals of the power supply to a connecting end;
step three: an intelligent control circuit board, a wireless transmitting module and a wireless receiving module are additionally arranged, and the wireless receiving module is arranged on the intelligent control circuit board;
step four: the wireless transmitting module is arranged in the automobile and is connected with a power supply;
step five: and connecting and fixing the intelligent control circuit board and a corresponding functional terminal led out from the original automobile key circuit board.
Preferably, the wireless transmitting module has a broadcasting function and transmits a wireless signal in real time, the wireless receiving module acquires the wireless signal and judges whether the wireless signal is matched with a target wireless signal, the intelligent control circuit board automatically sends corresponding unlocking and locking instructions to the original automobile key circuit board according to the judgment result, and the original automobile key circuit board sends corresponding unlocking and locking signals to enable the central control of the automobile to perform unlocking and locking actions according to the instruction of the automobile key.
Preferably, the wireless transmitting module transmits a wireless signal with a preset intensity, the magnetic field intensity of the wireless signal attenuates with the increase of the distance between the wireless transmitting module and the wireless transmitting module, and when the distance between the transmitted wireless signal and the wireless transmitting module exceeds the preset distance range, the magnetic field intensity of the wireless signal is attenuated to zero; if the wireless receiving module is within the preset distance, the wireless signal transmitted by the wireless transmitting module can be acquired, the intelligent control circuit board sends an unlocking instruction to the original automobile key circuit board, if the wireless receiving module is outside the preset distance, the wireless signal transmitted by the wireless transmitting module cannot be acquired, and the intelligent control circuit board sends a locking instruction to the original automobile key circuit board.
Preferably, the wireless transmitting module is powered through an automobile OBD interface, has an OBD decoding function, and can read and send vehicle information to the matched wireless receiving module.
An automatic unlocking device of an automobile key is based on the modification and upgrading method of the automobile key and comprises a shell, wherein an intelligent control circuit board and an automobile key circuit board are both arranged in the shell, a touch display module electrically connected with the intelligent control circuit board and a power supply module for supplying power to the touch display module, the intelligent control circuit board and the original automobile key circuit board are also arranged in the shell; the intelligent control circuit board comprises a main control chip and a switch module, the power supply module is in bridge connection with the touch display module through the switch module, and the switch module is used for disconnecting the power supply of the power supply module to the touch display module when the voltage of the power supply module is lower than a preset value.
And the terminal of the function key of the original automobile key circuit board is led out in a mode of contacting with a welding lead and/or an ejector pin to be connected with the function key of the original automobile key circuit board.
Preferably, the switch module includes a switch triode, a first voltage-dividing resistor and a second voltage-dividing resistor, a collector of the switch triode is sequentially connected with the touch display module and the power module, an emitter of the switch triode is grounded, a base of the switch triode is connected with the first voltage-dividing resistor and the second voltage-dividing resistor which are connected in parallel, the other end of the first voltage-dividing resistor is grounded, and the other end of the second voltage-dividing resistor is connected with the power module.
Preferably, the terminal of the function key of the original automobile key circuit board is led out in a mode of contacting with a welding lead and/or an ejector pin to be connected with the corresponding terminal of the intelligent control circuit board.
Preferably, the shell is embedded with a plurality of mechanical keys, specifically a door key for driving, a key for locking and a reserved key, and the mechanical keys are electrically connected with the functional keys on the original automobile key circuit board.
Preferably, the switch module further comprises a plurality of electronic switches respectively connected in parallel with the mechanical keys, and the main control chip is connected with the functional key terminals on the original car key circuit board through the electronic switches.
Preferably, the switching transistor is an npn transistor.
The invention has the beneficial effects that: the method does not change the original automobile system, does not change the safety factor of the original automobile, is suitable for all automobiles with one-key starting function, has the same unlocking process as the normal key unlocking process, and can directly start the automobile after automatic unlocking; the automatic unlocking and locking of the vehicle door can be realized within a preset range, and the automatic unlocking and locking device has the advantages of simplicity in modification, convenience, safety, wide usability of matched vehicle types, high customer experience degree and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a step diagram of a method for retrofitting and upgrading a key for a vehicle according to a preferred embodiment of the invention;
FIG. 2 is a modified key structure diagram of the method for modifying and upgrading the key of the vehicle according to the preferred embodiment of the present invention;
FIG. 3 is a view showing the construction of the installation of the automatic lock opening device of the car key according to the preferred embodiment of the present invention;
FIG. 4 is a circuit diagram of a main control chip of the automatic unlocking device of the car key according to the preferred embodiment of the present invention
FIG. 5 is a circuit diagram of the mechanical button and electronic switch connection of the automatic unlocking device of the automobile key according to the preferred embodiment of the present invention;
fig. 6 is a circuit diagram of a switch module of the automatic unlocking device of the automobile key according to the preferred embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
The method for modifying and upgrading the automobile key of the preferred embodiment of the invention is shown in figure 1 and comprises the following steps:
step s 101: the circuit board of the original automobile key is detached and taken out;
step s 102: leading out the functional keys on the original automobile key circuit board 1 and the terminals of the power supply to a connecting end;
step s 103: an intelligent control circuit board 2, a wireless transmitting module 3 and a wireless receiving module 21 are additionally arranged, and the wireless receiving module 21 is arranged on the intelligent control circuit board 2;
step s 104: the wireless transmitting module 3 is arranged in the automobile and is connected with a power supply;
step s 105: and connecting and fixing the intelligent control circuit board 2 and a corresponding functional terminal led out from the original automobile key circuit board 1.
The method does not change the original automobile system, does not change the safety factor of the original automobile, is suitable for all automobiles with one-key starting function, has the same unlocking process as the normal key unlocking process, and can directly start the automobile after automatic unlocking; the automatic unlocking and locking of the vehicle door can be realized within a preset range, and the automatic unlocking and locking device has the advantages of simplicity in modification, convenience, safety, wide usability of matched vehicle types, high customer experience degree and the like.
As shown in fig. 1, the wireless transmitting module 3 has a broadcasting function and transmits a wireless bluetooth signal with a preset intensity in real time, the magnetic field intensity of the wireless signal attenuates with the increase of the distance between the wireless transmitting module 3, when the distance between the transmitted wireless signal and the wireless transmitting module 3 exceeds the preset distance range, the magnetic field intensity attenuates to zero, the wireless receiving module 21 searches for the wireless bluetooth signal transmitted by the wireless transmitting module 3 in real time, and the wireless receiving module 21 only identifies the wireless signal transmitted by the corresponding wireless transmitting module 3;
as shown in fig. 1, 4 and 5, the wireless transmitting module 3 and the wireless receiving module 21 are both bluetooth modules, the intelligent control circuit board 2 includes a main control chip 22 and a switch module 23, the switch module 23 includes a plurality of electronic switches, the electronic switches are connected to the main control chip 22, specifically, as shown in fig. 4-5, the main control chip is specifically an rk2018 chip, the electronic switches are specifically SGM3001 chips, and the plurality of electronic switches are respectively an electronic chip U2, an electronic chip U3, an electronic chip U4 and an electronic chip U5, which are respectively and correspondingly connected to a tail door opening key, a reserved key, a door locking key and a door opening key on the original car key circuit board 1;
when the wireless receiving module 21 receives the wireless Bluetooth signal transmitted by the wireless transmitting module 3 and is matched with the wireless Bluetooth signal, the distance between the automobile key and the automobile is judged to enter a preset range, the main control chip 22 controls the electronic chip U5 to simulate a physical switch of the original automobile to conduct connection and short circuit, so that the original automobile key circuit board 1 sends an unlocking signal, the automobile central controller conducts an automobile door lock opening action, when the wireless receiving module 21 cannot receive the wireless Bluetooth signal transmitted by the wireless transmitting module 3 and is disconnected with the wireless Bluetooth signal, the distance between the automobile key and the automobile is judged to exceed the preset range, the main control chip 22 controls the electronic chip U4 to simulate the physical switch of the original automobile to conduct connection and short circuit, so that the original automobile key circuit board 1 sends a lock closing signal, and the automobile central controller conducts an automobile door lock closing action;
the range of the preset distance is 1-5 meters, the wireless transmitting module 3 can adjust the wireless signal intensity so as to change the preset distance, and the signal intensity can be divided into four grades of strong, normal, medium and weak; the automobile key after being modified by upgrading can realize automatic unlocking, locking, automatic window lifting and the like of the automobile door within a preset range, and has the advantages of simple structure, convenience in modification, low modification cost and high practicability.
As shown in fig. 1, the wireless transmitting module 3 is powered by an automobile OBD interface, so that the wireless transmitting module can be in a standby state at any time; the wireless transmitting module 3 has an OBD decoding function, and can read and transmit vehicle information to the matched wireless receiving module 21.
The automatic unlocking device for the automobile key of the preferred embodiment of the invention is shown in fig. 2, and referring to fig. 3-6, and comprises a shell 4, wherein a power module 6, an intelligent control circuit board 2 and an original automobile key circuit board 1 are all arranged in the shell 4, a touch display module 5 electrically connected with the intelligent control circuit board 2 and a power module 6 for supplying power to the touch display module 5, the intelligent control circuit board 2 and the original automobile key circuit board 1 are also arranged in the shell 4; the intelligent control circuit board 2 comprises a main control chip 22 and a switch module 23, the power supply module 6 is in bridge connection with the touch display module 5 through the switch module (23), and the switch module 23 is used for cutting off power supply of the power supply module 6 to the touch display module 5 when the voltage of the power supply module 6 is lower than a preset value;
as shown in fig. 5, the switching module 23 includes a switching transistor Q1, a first voltage-dividing resistor R1 and a second voltage-dividing resistor R2, a collector of the switching transistor is sequentially connected to the touch display module 5 and the power module 6, an emitter of the switching transistor is grounded, a base of the switching transistor is connected to the first voltage-dividing resistor R1 and the second voltage-dividing resistor which are connected in parallel, the other end of the first voltage-dividing resistor R1 is grounded, and the other end of the second voltage-dividing resistor R2 is connected to the power module 6;
specifically, the preset voltage value of the power module 6 is 3.5V, and the resistance value of the first voltage dividing resistor R1 is 1KΩThe second divider resistor R2 has a resistance of 4KΩThe switching triode Q1 is an npn type triode, and the base conduction voltage of the switching triode Q1 is 0.7 v; when the output voltage vcc of the power supply module 6 is less than 3.5v, the base voltage of the switching triode Q1 is less than [ R2/(R3+ R2)]*3.5＝[1/(4+1)]3.5-0.7 v, base voltage<0.7v, so the switching transistor Q1 is in the cut-off state, and the touch display module 5 stops working; preferentially supplies power to the original automobile key circuit board 1 to ensure that the original automobile key is controlled by using physical keys normallyThe circuit board 1 reminds a user to charge the power module 6 in time.
The shell 4 comprises an upper shell, a lower shell and a rear cover, the upper shell and the lower shell are clamped and arranged, the lower shell is provided with a clamping groove matched with the rear cover, an accommodating space for installing the touch display module 5, the power supply module and the intelligent control circuit board 2 is formed between the upper shell and the lower shell, and another accommodating space for fixing the automobile key circuit board 1 is formed between the lower shell and the rear cover; the touch display module 5, the power supply module 6, the intelligent control circuit board 2 and the automobile key circuit board 1 are respectively and fixedly arranged in different shells, so that compact installation of the structure is realized, and meanwhile, the structural stability can be met; the touch control display module 5 can realize the functions of locking and unlocking the car door, unlocking the trunk door and the like through virtual keys, can also display time and date, display electric quantity and set different display backgrounds, and the intelligent control circuit board 2 also has the function of a pedometer, and the specific number of steps is displayed through the touch control display module; the touch display module 5 is specifically a liquid crystal display screen;
as shown in fig. 4-5, a plurality of mechanical keys, specifically, a door opening key sw1, a tail door opening key sw2, a vehicle locking key sw3 and a reserved key sw4 are embedded on the housing 4 and are respectively connected in parallel with a corresponding electronic switch U2, an electronic switch U3, an electronic switch U4 and an electronic switch U5 on the intelligent control circuit board 2; the standby control of the automobile key is realized, and when the touch display function is insensitive, the basic automobile control can be realized through the mechanical key 4.
As shown in fig. 4 and 5, terminals of a door opening key, a tail door opening key and a door locking key on the automobile key circuit board 1 are led out in a mode of contacting with a welding lead and/or a thimble, and are connected with the intelligent control circuit board 2; be provided with row mother pad1 on the intelligent control circuit board 2, the function button on the car key circuit board 1 is through drawing forth the wire connection row needle, row needle and row mother are connected.
The invention also provides another embodiment of the automatic unlocking device of the automobile key, which has the same structure as the above embodiment, and the difference is that the wireless transmitting module 3 is a plurality of high-frequency transmitting devices arranged at intervals, preferably two, the two high-frequency transmitting devices simultaneously transmit wireless signals, the wireless receiving module 21 detects the signal intensity of the two wireless signals when the two wireless signals are simultaneously detected, and only when the signal intensity of the two wireless signals is different, the automobile door of the automobile is unlocked;
the person with worry can receive the wireless signal sent by the wireless transmitting module 3, and then transmit the wireless signal through the transmission line; the transmission distance is increased after the wireless signal is amplified, so that the intelligent key of the vehicle owner can receive the signal at a remote place, and the verification mechanism is started to remotely open the vehicle door; at the moment, a person with worry can enter the vehicle while the vehicle is still in motion, and the vehicle owner cannot know the person because of the long distance; in order to prevent the above situation, the frequency and wavelength of the signals transmitted by the plurality of high frequency transmission devices are different, the positions and directions of the plurality of high frequency transmission devices are unique, the combination of the magnetic field intensity values of the wireless signals received by the intelligent control circuit board 2 is also unique, and if a person with a heart transmits the plurality of wireless signals through the transmission line and then transmits the wireless signals, the intelligent control circuit board 2 can simultaneously detect the wireless signals with the same signal intensity.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The method for modifying and upgrading the automobile key is characterized by comprising the following steps
The method comprises the following steps: the circuit board of the original automobile key is detached and taken out;
step two: leading out a connecting end from a functional key on the original automobile key circuit board (1) and a terminal of a power supply;
step three: an intelligent control circuit board (2), a wireless transmitting module (3) and a wireless receiving module (21) are additionally arranged, and the wireless receiving module (21) is arranged on the intelligent control circuit board (2);
step four: the wireless transmitting module (3) is arranged in an automobile and is connected with a power supply;
step five: and connecting and fixing the intelligent control circuit board (2) and a corresponding functional terminal led out from the original automobile key circuit board (1).
2. The method for modifying and upgrading the automobile key according to claim 1, wherein the wireless transmitting module (3) has a broadcasting function and transmits a wireless signal in real time, the wireless receiving module (21) acquires the wireless signal and judges whether the wireless signal is matched with a target wireless signal, the intelligent control circuit board (2) automatically sends corresponding unlocking and locking instructions to the original automobile key circuit board (1) according to the judgment result, and the original automobile key circuit board (1) sends corresponding unlocking and locking signals to enable an automobile central control to perform unlocking and locking actions according to the instruction of the automobile key.
3. The method for upgrading and modifying a car key according to claim 1, wherein the wireless transmitting module (3) transmits a wireless signal with a preset intensity, the magnetic field intensity of the wireless signal is attenuated along with the increase of the distance between the wireless transmitting module (3), and when the distance between the transmitted wireless signal and the wireless transmitting module (3) exceeds the preset distance range, the magnetic field intensity is attenuated to zero; when the wireless receiving module (21) is within a preset distance, a wireless signal transmitted by the wireless transmitting module (3) is acquired, the intelligent control circuit board (2) sends an unlocking instruction to the original automobile key circuit board (1), when the wireless receiving module (21) is out of the preset distance, the wireless signal transmitted by the wireless transmitting module (3) cannot be acquired, and the intelligent control circuit board (2) sends a locking instruction to the original automobile key circuit board (1).
4. The method for modifying and upgrading the automobile key according to claim 1, wherein the wireless transmitting module (3) is powered through an automobile OBD interface, the wireless transmitting module (3) has an OBD decoding function, and vehicle information can be read and sent to the matched wireless receiving module (21).
5. An automatic unlocking device for an automobile key is based on the refitting and upgrading method for the automobile key as claimed in claims 1 to 4, and is characterized by comprising a shell (4), wherein the intelligent control circuit board (2) and the original automobile key circuit board (1) are both installed in the shell (4), a touch display module (5) electrically connected with the intelligent control circuit board (2) and a power supply module (6) for supplying power to the touch display module (5), the intelligent control circuit board (2) and the original automobile key circuit board (1) are further arranged in the shell (4); the intelligent control circuit board (2) comprises a main control chip (22) and a switch module (23), the power supply module (6) is in bridge connection with the touch display module (5) through the switch module (23), and the switch module (23) is used for disconnecting the power supply of the power supply module (6) to the touch display module (5) when the voltage of the power supply module (6) is lower than a preset value.
6. The device for automatically unlocking by key of car according to claim 5, wherein said switch module (23) comprises a switch triode, a first divider resistor and a second divider resistor, the collector of said switch triode is connected with said touch display module (5) and said power module (6) in sequence, the emitter is grounded, the base is connected with the first divider resistor and the second divider resistor which are connected in parallel, the other end of said first divider resistor is grounded, and the other end of said second divider resistor is connected with the power module (6).
7. The automatic unlocking device of automobile key according to claim 5, characterized in that the terminals of the function keys of the original automobile key circuit board (1) are led out in a mode of contacting with welding wires and/or thimbles to be connected with the corresponding terminals of the intelligent control circuit board (2).
8. The automatic unlocking device of automobile key according to claim 5, characterized in that a plurality of mechanical keys, specifically a door-opening key, a tail-opening key, a lock key and a reserved key, are embedded on the housing (4), and the plurality of mechanical keys are electrically connected with the functional keys on the original automobile key circuit board (1).
9. The automatic unlocking device of car key according to claim 5, characterized in that said switch module (23) further comprises a plurality of electronic switches respectively connected in parallel with said mechanical keys, said main control chip (22) is connected to said functional key terminals on the original car key circuit board (1) through said electronic switches.
10. The device as claimed in claim 6, wherein the switching transistor is an npn transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110308428.2A CN113160457A (en) | 2021-03-23 | 2021-03-23 | Refitting and upgrading method of automobile key and automatic unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110308428.2A CN113160457A (en) | 2021-03-23 | 2021-03-23 | Refitting and upgrading method of automobile key and automatic unlocking device |
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| Publication Number | Publication Date |
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| CN113160457A true CN113160457A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110308428.2A Pending CN113160457A (en) | 2021-03-23 | 2021-03-23 | Refitting and upgrading method of automobile key and automatic unlocking device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517609A (en) * | 2022-04-21 | 2022-05-20 | 毕晓文 | Intelligent automobile key device capable of being installed in lossless mode, lossless installation method and vehicle control method |
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2021
- 2021-03-23 CN CN202110308428.2A patent/CN113160457A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114517609A (en) * | 2022-04-21 | 2022-05-20 | 毕晓文 | Intelligent automobile key device capable of being installed in lossless mode, lossless installation method and vehicle control method |
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