Remote key upgrading device and intelligent key

Abstract

The utility model provides a remote control key upgrading device and an intelligent key. The remote control key upgrading device comprises a trigger and a relay Bluetooth device, the relay Bluetooth device is connected with the remote control key, and the trigger is in Bluetooth communication connection with the relay Bluetooth device; the relay Bluetooth equipment comprises a chip and a key control circuit; wherein the chip is configured to output a corresponding circuit signal according to the distance between the relay Bluetooth device and the trigger; and the key control circuit is connected with the chip to receive the circuit signal and is connected with a remote control key to realize key operation corresponding to the analog circuit signal. According to the remote control key upgrading device, a traditional automobile remote control key can be energized, and the remote control key can be upgraded into an intelligent product which can automatically sense the distance so as to open and close a lock.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle engineering, and in particular relates to a remote control key upgrading device and a smart key. Background Art

[0002] At present, there are more and more smart car keys, which can intelligently judge the distance between people and cars and then decide whether to unlock or lock. For example, when a person approaches the car with a smart key, the car will be automatically unlocked, and when a person moves away from the car with a smart key, the car will be automatically locked. However, in traditional cars, when the car is turned off, unlocking, opening windows, and opening the trunk door all require manual pressing of traditional car remote control keys, which is very inconvenient to operate.

[0003] These traditional car remote control keys are not smart enough to operate, which affects the user experience. Currently, there is no applicable solution for upgrading traditional remote control keys to improve the user experience of traditional remote control keys. Summary of the invention

[0004] The utility model aims to provide a remote control key upgrading device and a smart key, which are used to solve the problem that the traditional automobile remote control key cannot realize automatic opening and closing of the lock according to the distance.

[0005] In order to solve the above technical problems, the present application provides a remote control key upgrade device, characterized in that it includes a trigger and a relay Bluetooth device;

[0006] The relay Bluetooth device is connected to the remote control key, and the trigger is connected to the relay Bluetooth device via Bluetooth communication;

[0007] The relay Bluetooth device includes a chip and a key control circuit;

[0008] Wherein, the chip is configured to output a corresponding circuit signal according to the distance between the relay Bluetooth device and the trigger;

[0009] The key control circuit is connected to the chip to receive the circuit signal, and is connected to the remote control key to simulate the key operation corresponding to the circuit signal.

[0010] In one embodiment of the utility model, the key control circuit includes multiple key control branches, each of the key control branches is connected to the corresponding IO pin on the chip, and each of the key control branches is also connected to the welding point of the corresponding button on the remote control key.

[0011] In one embodiment of the utility model, each of the key control branches includes a first resistor, a transistor and a relay connected in sequence;

[0012] The first resistor is connected to the corresponding IO pin, and the relay is connected to a welding point of a button corresponding to the key control branch.

[0013] In an embodiment of the present invention, each of the buttons includes two welding points.

[0014] In an embodiment of the present invention, the key operation includes unlocking and locking.

[0015] In one embodiment of the present invention, the method for obtaining the distance between the relay Bluetooth device and the trigger includes:

[0016] The RSSI value between the relay Bluetooth device and the trigger is obtained, and the RSSI value is converted into a corresponding distance as the distance between the relay Bluetooth device and the trigger.

[0017] In an embodiment of the present invention, the type of the relay Bluetooth device includes a BLE Bluetooth device.

[0018] In one embodiment of the present invention, the trigger includes a mobile phone.

[0019] In order to solve the above technical problems, the utility model also provides a smart key, including a remote control key body and a remote control key upgrading device connected to the remote control key body, and the remote control key upgrading device is the remote control key upgrading device described above.

[0020] Compared with the prior art, the remote control key upgrade device and smart key proposed by the utility model have the following beneficial effects:

[0021] (1) The remote control key upgrade device of the utility model can empower the traditional automobile remote control key through a trigger and a relay Bluetooth device, so that it can be upgraded to an intelligent product that automatically senses the distance and opens and closes the lock, which can significantly improve the user experience.

[0022] (2) The remote control key upgrade device of the present invention does not require physical pressing of the buttons on the remote control key, which not only makes the placement of the original key and the remote control key upgrade device in the car more diverse and more adaptable, but also helps to extend the life of the buttons. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0024] Figure 1 The figure shows a schematic diagram of the structure of the remote control key upgrading device according to the embodiment of the utility model.

[0025] Figure 2 A schematic diagram of multiple key control branches of the remote control key upgrading device described in an embodiment of the utility model is shown.

[0026] Figure 3 A schematic diagram of a key control branch in the remote control key upgrading device described in an embodiment of the utility model is shown.

[0027] Figure 4 The figure shows a schematic diagram of the structure of the smart key according to the embodiment of the utility model. DETAILED DESCRIPTION

[0028] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that as long as there is no conflict, the various embodiments of the present invention and the various features in the embodiments can be combined with each other, and the technical solutions formed are all within the protection scope of the present invention.

[0029] The principles and implementation methods of the remote control key upgrade device and the smart key of this embodiment will be described in detail below so that those skilled in the art can understand the remote control key upgrade device and the smart key of this embodiment without creative work.

[0030] In order to solve the above technical problems existing in the prior art, an embodiment of the utility model provides a remote control key upgrading device.

[0031] Figure 1 The schematic diagram of the structure of the remote control key upgrade device according to the embodiment of the utility model is shown. Figure 1 As shown, the embodiment of the utility model includes a trigger and a relay Bluetooth device. The trigger is connected to the relay Bluetooth device by Bluetooth communication, and the relay Bluetooth device is also connected to the remote control key. The relay Bluetooth device includes a chip and a key control circuit. The chip is also the main control chip in the intermediate Bluetooth device. The main control chip is configured to output a corresponding circuit signal according to the distance between the relay Bluetooth device and the trigger; the key control circuit is connected to the chip to receive the circuit signal, and is connected to the remote control key to implement the key operation corresponding to the analog circuit signal. Therefore, the remote control key upgrade device can bypass the remote control key itself through the relay Bluetooth device connected to the remote control key, that is, the circuit signal corresponding to the key operation can be sent to the remote control key without physical button operation. In this process, the circuit signal corresponds to the key operation. At the same time, the basis for selecting which key operation is the distance between the relay Bluetooth device and the trigger.

[0032] Optionally, the key operation includes unlocking and locking. When the subject controlled by the remote control key is a car, unlocking and locking are opening and closing the door locks. Specifically, when the distance between the relay Bluetooth device and the trigger is less than a first threshold, the chip outputs a circuit signal corresponding to unlocking, and when the distance between the relay Bluetooth device and the trigger is greater than a second threshold, the chip outputs a circuit signal corresponding to locking. Since the subjects controlled by the remote control key are different, the buttons on the remote control key are not only unlocking and locking, but may also have buttons with other functions. Therefore, according to the different buttons on the remote control key, circuit signal schemes can be configured for different buttons respectively, that is, according to the distance between the relay Bluetooth device and the trigger, corresponding circuit signals are output to simulate the control of different buttons. The above remote control key upgrade device can realize the simulation of multiple buttons, which is not limited to the above unlocking and locking. Those skilled in the art can flexibly set according to the control needs of different buttons on the remote control key.

[0033] Optionally, the key control circuit includes multiple key control branches. Figure 2 A schematic diagram of multiple key control branches of the remote control key upgrade device according to an embodiment of the utility model is shown, referring to Figure 2 As shown, each key control branch is connected to the corresponding IO pin on the chip. There are multiple IO pins on the chip, and each IO pin is connected to a key control branch. Each key control branch is also connected to the welding point of the corresponding button on the remote control key. The key control branch and the button on the remote control key are in a one-to-one correspondence. Each button has a corresponding welding point. The welding point is the metal part extending from the button, usually copper or other metals with good conductivity. They are responsible for transmitting the signal of the button to the circuit board. When the key control branch is connected to the welding point, the pin and the signal can realize the key operation corresponding to the button without pressing the corresponding button, that is, the key operation corresponding to the button can be realized by connecting the key control branch and the welding point, bypassing the physical pressing operation of the button.

[0034] Optionally, each key control branch includes a first resistor, a transistor and a relay connected in sequence; the first resistor is connected to the corresponding IO pin, and the relay is connected to the welding point of the corresponding button of the key control branch. Figure 3 A schematic diagram of a key control branch in the remote control key upgrade device according to an embodiment of the utility model is shown, referring to Figure 3As shown, the IO pin of the chip is connected to the first resistor, transistor and relay in sequence, and the relay is connected to the welding point of the corresponding remote control key button. The relay is also connected to the positive electrode of VCC, and the transistor is also connected to the ground through the second resistor. At this time, the principle of the remote control key upgrade device is as follows: the chip sends a circuit signal according to the distance between the relay Bluetooth device and the trigger. When the distance between the relay Bluetooth device and the trigger is less than the first threshold, the chip outputs a circuit signal corresponding to unlocking. The circuit signal corresponding to unlocking is - a low level is output to the key control branch corresponding to the unlocking button through the chip IO pin, the relay coil in the key control branch is energized, the armature in the relay is sucked down, the normally open contact is connected, and the key control branch is connected to the welding point of the corresponding button, simulating the operation of the corresponding button being pressed, and after a certain delay, the key control branch is connected to the welding point of the corresponding button through the chip IO pin. A high level is output to the key control branch corresponding to the unlocking button, the relay coil in the key control branch is powered off, the armature in the relay loses its magnetism, the normally closed contact is connected, the normally open contact is disconnected, the welding point between the key control branch and the corresponding button is disconnected, and the unlocking is completed; when the distance between the relay Bluetooth device and the trigger is greater than the second threshold value, the chip outputs a circuit signal corresponding to locking, and the corresponding circuit signal for locking is - a low level is output to the key control branch corresponding to the locking button through the chip IO pin, and a high level is output after a certain delay, and the locking is completed. The locking principle is the same as the unlocking principle, the difference is that the corresponding buttons are different.

[0035] Optionally, each key comprises two welding points. Figure 3 As shown, the relay is wired to two welding points via two wires, for example, button 1 corresponds to welding points 11 and 12 .

[0036] Optionally, the method for obtaining the distance between the relay Bluetooth device and the trigger includes: obtaining the RSSI value between the relay Bluetooth device and the trigger, and converting the RSSI value into a corresponding distance as the distance between the relay Bluetooth device and the trigger. Received Signal Strength Indication (RSSI) is an indicator of the received signal strength indication, which is an indicator of the link quality determined by the amplitude after the wireless transmission layer receives the signal in the specified channel and demodulates it. The modulation method of the Bluetooth communication signal is GFSK, and the RSSI value of the demodulated signal directly reflects the distance relationship between the trigger and the relay Bluetooth device. Specifically, the closer the distance between the trigger and the relay Bluetooth device, the larger the RSSI (unit: dBm) value; the farther the distance between the trigger and the relay Bluetooth device, the smaller the RSSI (unit: dBm) value. Therefore, the distance can be judged by the RSSI value.

[0037] Optionally, the type of the relay Bluetooth device includes a BLE Bluetooth device. A BLE (Bluetooth low energy) Bluetooth device is a low-power Bluetooth device. The full name of BLE HID is HOGP (HID Over GATT Profile). Wireless keyboards, wireless mice, wireless controllers, etc. are all implemented based on the BLE-HID protocol.

[0038] Optionally, the trigger includes a mobile phone. The mobile phone will automatically connect to the paired slave device. According to the Bluetooth connection specification, the Bluetooth device encrypts the connection point-to-point communication, the mobile phone connects to the paired slave device and enters the correct pairing password. The AES encryption algorithm is used in the communication to ensure the communication security. The connection interaction signal is not easy to be detected, and the security level is higher. The penetration rate of smart phones is very high now. The combination of BLE and car keys can realize the operation of opening the window and the trunk door according to the distance configuration when the mobile phone is close to the car. In addition, there are two advantages to choosing a mobile phone as a trigger. First, the mobile phone is one of the common items carried with you, and it is more convenient to use it as a trigger to control the remote control key; second, the application for controlling the relay Bluetooth device can be installed in the mobile phone, and the control method of the relay Bluetooth device is more diverse.

[0039] It should be noted that after the remote control key upgrade device of the utility model is connected to the remote control key of the car, the relay Bluetooth device and the remote control key are connected and placed together in the car. The person carries the trigger outside the car, and the remote control key upgrade device automatically controls the remote control key switch lock according to the distance between the trigger and the relay Bluetooth device. Since the remote control key upgrade device of the utility model realizes the simulated key button operation through the key control circuit, there is no need to physically press the button. The relay Bluetooth device and the remote control key can be placed in a variety of postures and positions in the car. As long as the relay Bluetooth device and the remote control key are in a connected state, the corresponding function can be executed, and the change in the position of the two will not affect the accuracy of the button. In addition, the remote control key that can be upgraded by the remote control key upgrade device of the utility model is not only a car key, but also a remote control key of an electric bicycle.

[0040] In summary, the remote control key upgrade device of the utility model can empower the traditional car remote control key through the trigger and the relay Bluetooth device, so that it can be upgraded to an intelligent product that automatically senses the distance to open and close the lock, which can significantly improve the user experience. At the same time, the remote control key upgrade device of the utility model does not need to physically press the buttons on the remote control key, which not only makes the placement of the original key and the remote control key upgrade device in the car more diverse and more adaptable, but also helps to extend the life of the buttons.

[0041] In order to solve the above technical problems, the utility model also provides a smart key.

[0042] Figure 4The structure diagram of the smart key according to the embodiment of the utility model is shown. Figure 4 As shown, it includes a remote control key body and a remote control key upgrading device connected to the remote control key body, and the remote control key upgrading device is the remote control key upgrading device described above.

[0043] In specific application, the principle and process of the smart key are as follows (the trigger is a mobile phone for explanation, and other triggers can also be set): connect to the relay Bluetooth device in the Bluetooth setting interface of the mobile phone and enter the password. The connection is successful and the first pairing is completed; when a person carries the mobile phone close to the vehicle and reaches the effective Bluetooth distance, the mobile phone and the relay Bluetooth device are automatically connected. At the same time, the relay Bluetooth device starts to detect RSSR and convert it into distance. When the distance is less than the first threshold, the relay Bluetooth device controls the remote control key to automatically unlock; when the person carries the mobile phone away from the vehicle, the relay Bluetooth device continues to detect RSSR and convert it into distance. When the distance is greater than the second threshold, the relay Bluetooth device controls the remote control key to automatically lock.

[0044] In summary, the smart key of the utility model can empower the traditional car remote control key through the trigger and the relay Bluetooth device, so that it can be upgraded to an intelligent product that automatically senses the distance to open and close the lock, which can significantly improve the user experience. At the same time, the remote control key upgrade device of the utility model does not need to physically press the buttons on the remote control key, which not only makes the placement of the original key and the remote control key upgrade device in the car more diverse and more adaptable, but also helps to extend the life of the buttons.

[0045] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A remote control key upgrade device, characterized in that: Including trigger and relay Bluetooth devices; The relay Bluetooth device is connected to the remote control key, and the trigger is connected to the relay Bluetooth device via Bluetooth communication; The relay Bluetooth device includes a chip and a key control circuit; Wherein, the chip is configured to output a corresponding circuit signal according to the distance between the relay Bluetooth device and the trigger; The key control circuit is connected to the chip to receive the circuit signal, and is connected to the remote control key to simulate the key operation corresponding to the circuit signal.

2. The device according to claim 1, characterized in that The key control circuit includes a plurality of key control branches, each of which is connected to a corresponding IO pin on the chip, and each of which is also connected to a welding point of a corresponding button on the remote control key.

3. The device according to claim 2, characterized in that Each of the key control branches comprises a first resistor, a triode and a relay connected in sequence; The first resistor is connected to the corresponding IO pin, and the relay is connected to a welding point of a button corresponding to the key control branch.

4. The device according to claim 3, characterized in that Each of the keys comprises two welding points.

5. The device according to claim 1, characterized in that The key operation includes unlocking and locking.

6. The device according to claim 1, characterized in that The method for obtaining the distance between the relay Bluetooth device and the trigger includes: The RSSI value between the relay Bluetooth device and the trigger is obtained, and the RSSI value is converted into a corresponding distance to serve as the distance between the relay Bluetooth device and the trigger.

7. The device according to claim 1, characterized in that The type of the relay Bluetooth device includes a BLE Bluetooth device.

8. The device according to claim 1, characterized in that The trigger includes a mobile phone.

9. A smart key, characterized in that: The invention comprises a remote control key body and a remote control key upgrading device connected to the remote control key body, wherein the remote control key upgrading device is the remote control key upgrading device according to any one of claims 1 to 8.

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