Car key anti-lost system and car key anti-lost device
The car key anti-loss system utilizes Bluetooth connectivity and a GPS locator to enable two-way retrieval between the car key anti-loss device and the mobile phone, solving the problem of the inability to achieve two-way retrieval in existing technologies and improving user security and convenience.
Patent Information
- Application Number
- CN202422888661.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Current technology cannot achieve two-way retrieval of car key anti-loss devices and mobile phones, causing users to face inconvenience and security risks when they lose their car keys or mobile phones.
A car key anti-loss system has been designed, including a car key anti-loss device, an alarm device, and a mobile phone. The system enables two-way retrieval between the car key anti-loss device and the mobile phone via Bluetooth connection. It is also equipped with a Bluetooth module, a buzzer, an indicator light, and a GPS locator, providing multiple alarm and positioning functions.
It enables two-way retrieval of car keys and mobile phones, alerts users when the Bluetooth connection is lost, and uses a GPS locator to help users find lost items, improving user experience and security.
Smart Images

Figure CN223757142U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of car key anti-lost, specifically, the utility model relates to a car key anti-lost system and car key anti-lost device. BACKGROUND
[0002] With the progress of science and technology, the development of society and the improvement of people's living standards, now almost every family has a car key, whether it is an electric car key, a motorcycle key or a car key. In daily life, users accidentally lose the car key or forget to put the car key somewhere. This situation will cause trouble to the user once it happens, and even face the risk of vehicle theft.
[0003] In the patent CN204731952U, an intelligent anti-lost device and an anti-lost key hanger are disclosed. The intelligent anti-lost device includes a Bluetooth module, a power module, a sound emitting module and a light emitting module. The Bluetooth module, the sound emitting module and the light emitting module are respectively electrically connected with the power module. The power module is used for supplying power to the intelligent anti-lost device. The Bluetooth module is used for sending an alarm signal to the sound emitting module and the light emitting module when receiving a search signal sent by a client or when detecting that the strength of the Bluetooth signal sent by the client is less than a threshold. The sound emitting module is electrically connected with the Bluetooth module and is used for producing a sound alarm when receiving the alarm signal sent by the Bluetooth module. The light emitting module is electrically connected with the Bluetooth module and is used for producing a light emitting alarm or a flashing alarm when receiving the alarm signal sent by the Bluetooth module.
[0004] However, the technology disclosed in the above patent cannot realize the bidirectional retrieval of the car key anti-lost device and the mobile phone. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problem of the prior art and provides a car key anti-lost system and car key anti-lost device to achieve the purpose of bidirectional retrieval of the car key anti-lost device and the mobile phone.
[0006] In order to achieve the above purpose, the utility model adopts the technical scheme of:
[0007] The utility model provides a car key anti-lost system, including car key anti-lost device, alarm device, mobile phone, and the car key anti-lost device is connected through Bluetooth with the alarm device, and the car key anti-lost device is connected through Bluetooth with the mobile phone.
[0008] Further, the alarm device includes a control chip, a Bluetooth receiver and a first buzzer, the output end of the control chip is connected with the input end of the first buzzer, and the input end of the control chip is connected with the output end of the Bluetooth receiver.
[0009] The utility model also provides a car key anti -loss system's car key anti -loss device, including power, bluetooth module, alarm module, power's output end is connected with bluetooth module's input and alarm module's input respectively, bluetooth module is connected with alarm module.
[0010] Further, the car key anti -loss device further comprises a positioner, and the output end of the power source is connected with the input end of the positioner.
[0011] Further, the bluetooth module comprises a bluetooth transmitter and a control unit, the bluetooth transmitter is connected with the control unit, the bluetooth transmitter is connected with the bluetooth receiver through bluetooth, the bluetooth transmitter is connected with the mobile phone through bluetooth, and the output end of the power source is connected with the input end of the bluetooth transmitter and the input end of the control unit.
[0012] Further, the alarm module comprises an indicator light and a second buzzer, the output end of the control unit is connected with the input end of the indicator light and the input end of the second buzzer respectively, and the output end of the power source is connected with the input end of the indicator light and the input end of the second buzzer respectively.
[0013] Further, the positioner adopts a global positioning system (GPS) positioner.
[0014] The car key anti -loss system and the car key anti -loss device have the following advantages.
[0015] (1) through the car key anti -loss system and the car key anti -loss device, the car key anti -loss device and the mobile phone can be found back bidirectionally, that is, the mobile phone can be found back through the car key anti -loss device, and the car key anti -loss device can be found back through the mobile phone.
[0016] (2) through the car key anti -loss system and the car key anti -loss device, the user can carry the alarm device on the body, when the bluetooth connection of the car key anti -loss device and the alarm device is disconnected, the car key anti -loss device and the alarm device will all give an alarm to remind the user.
[0017] (3) through the car key anti -loss system and the car key anti -loss device, the user can connect the car key anti -loss device with the mobile phone of the user through bluetooth, when the bluetooth connection of the car key anti -loss device and the mobile phone of the user is disconnected, the car key anti -loss device and the mobile phone will all give an alarm to remind the user.
[0018] (4) in the utility model, the position information of the car key anti -loss device is uploaded to the mobile phone of the user through the positioner, when the user cannot find the car key anti -loss device through the alarm of the car key anti -loss device, the user can find the car key anti -loss device through satellite positioning by means of the mobile phone.
[0019] (5) When the user does not know where the car key anti-lost device is, the user can make the car key anti-lost device issue an alarm through a one-key finding function in the mobile phone, so that the user finds the car key anti-lost device through sound; when the user does not know where the mobile phone is, the user can make the loudspeaker of the mobile phone issue an alarm through the movement of the car key anti-lost device, so that the user finds the mobile phone through sound. BRIEF DESCRIPTION OF DRAWINGS
[0020] The present specification includes the following drawings, the contents of which are shown as follows:
[0021] Figure 1 is a principle block diagram of a car key anti-lost system of the present application.
[0022] Mark 1, car key anti-lost device; 2, alarm device; 3, mobile phone; 11, power supply; 12, Bluetooth module; 13, alarm module; 14, positioner; 21, control chip; 22, Bluetooth receiver; 23, first buzzer; 121, Bluetooth transmitter; 122, control unit; 131, indicator light; 132, second buzzer. DETAILED DESCRIPTION
[0023] The specific embodiments of the present application are further described in detail below with reference to the drawings, by describing the embodiments, for the purpose of helping the skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical scheme of the present application, and to facilitate its implementation.
[0024] Figure 1 is a principle block diagram of a car key anti-lost system of the present application, comprising a car key anti-lost device 1, an alarm device 2 and a mobile phone 3, the car key anti-lost device 1 and the alarm device 2 are connected through Bluetooth, specifically, the Bluetooth transmitter 121 and the Bluetooth receiver 22 are connected through Bluetooth; the car key anti-lost device 1 and the mobile phone 3 are connected through Bluetooth, specifically, the Bluetooth transmitter 121 and the mobile phone 3 are connected through Bluetooth.
[0025] The alarm device 2 comprises a control chip 21, a Bluetooth receiver 22 and a first buzzer 23, the output end of the control chip 21 is connected with the input end of the first buzzer 23; the input end of the control chip 21 is connected with the output end of the Bluetooth receiver 22.
[0026] The car key anti-lost device 1 comprises a power supply 11, a Bluetooth module 12, an alarm module 13, the Bluetooth module 12 comprises a Bluetooth transmitter 121 and a control unit 122, the alarm module 13 comprises an indicating lamp 131 and a second buzzer 132, wherein the output end of the power supply 11 is connected with the input end of the Bluetooth module 12 and the input end of the alarm module 13 respectively, specifically, the output end of the power supply 11 is connected with the input end of the Bluetooth transmitter 121 and the input end of the control unit 122 respectively, the output end of the power supply 11 is connected with the input end of the indicating lamp 131 and the input end of the second buzzer 132 respectively, the Bluetooth module 12 is connected with the alarm module 13, specifically, the output end of the control unit 122 is connected with the input end of the indicating lamp 131 and the input end of the second buzzer 132 respectively, the Bluetooth transmitter 121 is connected with the control unit 122.
[0027] In addition, the car key anti-lost device 1 further comprises a positioner 14, the output end of the power supply 11 is connected with the input end of the positioner 14.
[0028] The working principle of the utility model is introduced as follows: Figure 1
[0029] The user can carry the alarm device 2 on the body, when the Bluetooth connection of the car key anti-lost device 1 and the alarm device 2 is disconnected, the car key anti-lost device 1 and the alarm device 2 all give an alarm to remind the user, specifically, the user can carry the alarm device 2 on the body, when the Bluetooth connection of the Bluetooth transmitter 121 and the Bluetooth receiver 22 is disconnected, the Bluetooth transmitter 121 sends the signal of Bluetooth connection disconnection to the control unit 122, the Bluetooth receiver 22 sends the signal of Bluetooth connection disconnection to the control chip 21, after receiving the signal of Bluetooth connection disconnection sent by the Bluetooth transmitter 121, the control unit 122 controls the indicating lamp 131 to flash and the second buzzer 132 to alarm, after receiving the signal of Bluetooth connection disconnection sent by the Bluetooth receiver 22, the control chip 21 controls the first buzzer 23 to alarm to remind the user.
[0030] The user can connect the car key anti-lost device 1 with the mobile phone 3 of the user through Bluetooth, when the Bluetooth connection of the car key anti-lost device 1 and the mobile phone 3 of the user is disconnected, the car key anti-lost device 1 and the mobile phone 3 all give an alarm to remind the user, specifically, the user can connect the car key anti-lost device 1 with the mobile phone 3 of the user through Bluetooth, when the Bluetooth connection of the Bluetooth transmitter 121 and the mobile phone 3 of the user is disconnected, the Bluetooth transmitter 121 sends the signal of Bluetooth connection disconnection to the control unit 122, after receiving the signal of Bluetooth connection disconnection sent by the Bluetooth transmitter 121, the control unit 122 controls the indicating lamp 131 to flash and the second buzzer 132 to alarm, after detecting that the Bluetooth connection with the Bluetooth transmitter 121 is disconnected, the mobile phone 3 of the user will control the loudspeaker of the mobile phone 3 to give an alarm to remind the user.
[0031] The position information of the car key anti-lost device 1 can be uploaded to the user's mobile phone 3 through the positioner 14, and when the user cannot find the car key anti-lost device 1 through the flashing of the indicator light 131 and the alarm of the second buzzer 132, the car key anti-lost device 1 can be found through satellite positioning by means of the mobile phone 3.
[0032] When the user does not know where the car key anti-lost device 1 is, the user can make the second buzzer 132 in the car key anti-lost device 1 alarm through the one-key finding function in the mobile phone 3 application program (APP), so that the user can find the car key anti-lost device 1 through sound; when the user does not know where the mobile phone 3 is, the user can make the loudspeaker of the mobile phone 3 alarm by moving the car key anti-lost device 1, so that the user can find the mobile phone 3 through sound.
[0033] In addition, the positioner 14 described above adopts a global positioning system (GPS) positioner; the control chip 21 can adopt an STM32F2 chip, or other control chips 21 capable of realizing the same function.
[0034] The utility model has been described exemplarily above in combination with the drawings. Apparently, the specific implementation of the utility model is not limited by the above-mentioned mode. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all of them are within the protection scope of the utility model.
Claims
1. A car key anti-loss system characterized by: The car key anti-lost device, the alarm device and the mobile phone are connected through Bluetooth. The alarm device comprises a control chip, a Bluetooth receiver and a first buzzer, the output end of the control chip is connected with the input end of the first buzzer, and the input end of the control chip is connected with the output end of the Bluetooth receiver. The car key anti-lost device comprises a power supply, a Bluetooth module and an alarm module, the output end of the power supply is connected with the input end of the Bluetooth module and the input end of the alarm module respectively, and the Bluetooth module is connected with the alarm module. The car key anti-lost device further comprises a locator, and the output end of the power supply is connected with the input end of the locator. The Bluetooth module comprises a Bluetooth transmitter and a control unit, the Bluetooth transmitter is connected with the control unit, the Bluetooth transmitter is connected with the Bluetooth receiver through Bluetooth, the Bluetooth transmitter is connected with the mobile phone through Bluetooth, the output end of the power supply is connected with the input end of the Bluetooth transmitter and the input end of the control unit respectively. The alarm module comprises an indicator light and a second buzzer, the output end of the control unit is connected with the input end of the indicator light and the input end of the second buzzer respectively, and the output end of the power supply is connected with the input end of the indicator light and the input end of the second buzzer respectively. The locator is a global positioning system (GPS) locator.
Citation Information
Patent Citations
Intelligence anti -losing device and prevent losing key and hang
CN204731952U