CN212724300U - Anti-lost device - Google Patents
Anti-lost device Download PDFInfo
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- CN212724300U CN212724300U CN202021792856.4U CN202021792856U CN212724300U CN 212724300 U CN212724300 U CN 212724300U CN 202021792856 U CN202021792856 U CN 202021792856U CN 212724300 U CN212724300 U CN 212724300U
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- lost device
- bluetooth
- alarm
- lost
- circuit board
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Abstract
The utility model relates to the technical field of electronic theft prevention, and discloses an anti-lost device, which comprises a Bluetooth chip, an alarm device and a control circuit board; the Bluetooth chip and the alarm device are respectively electrically connected with the control circuit board; the Bluetooth chip can be connected with an external device with a Bluetooth function in a Bluetooth mode; the alarm device is used for giving an alarm; when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into a Bluetooth connection disconnection state, the control circuit board controls the alarm device to give an alarm; the application provides a pair of anti-lost device, the mode transmission of connecting transmission data through the bluetooth is stable, excellent in use effect, and bluetooth chip power consumption is little, has reduced anti-lost device's work energy consumption, has promoted user's use and has experienced.
Description
Technical Field
The utility model relates to an electron theftproof technical field especially relates to an anti-lost device.
Background
In life, people often encounter the situation that the placement positions of important articles such as keys are forgotten or personal articles such as keys and mobile phones are lost, and the occurrence of the situations brings inconvenience to the life of people. Based on the above situation, people have developed the anti-lost device, and when the anti-lost device and the device wirelessly connected with the anti-lost device are changed from a connection state to a disconnection state, the anti-lost device can give an alarm to remind people to pay attention to abnormal conditions.
The anti-lost device in the prior art has the disadvantages of large power consumption and unstable connection signal, and influences the use experience of users.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a prevent lost device aims at solving prior art, prevents that lost device power consumption is big, connection signal is unstable, has influenced the phenomenon that user's use was experienced.
The utility model is realized in such a way, and provides an anti-lost device, which comprises a Bluetooth chip, an alarm device and a control circuit board; the Bluetooth chip and the alarm device are respectively electrically connected with the control circuit board; the Bluetooth chip can be in Bluetooth connection with an external device with a Bluetooth function; the alarm device is used for giving an alarm; when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the control circuit board controls the alarm device to give an alarm.
Further, the bluetooth chip can read the location of the anti-lost device, and the bluetooth chip sends the location to the external device connected with the anti-lost device in a bluetooth manner.
Further, the anti-lost device further comprises a clock circuit, the clock circuit is electrically connected with the control circuit board, and the clock circuit is used for adjusting the anti-lost device and external equipment connected with the Bluetooth of the anti-lost device to be in the same frequency during connection.
Further, the alarm device is a buzzer.
Further, the anti-lost device is provided with a shell, and the Bluetooth chip, the alarm device and the control circuit board are arranged inside the shell.
Further, the anti-lost device is also provided with a fixing mechanism, the fixing mechanism is arranged on the shell of the anti-lost device, and the fixing mechanism is used for fixing the anti-lost device.
Furthermore, a connecting mechanism is fixed on the shell and used for enabling the anti-lost device to be hung.
Further, the anti-lost device is also provided with an electricity storage element, the electricity storage element is arranged in the shell, and the electricity storage element is electrically connected with the control circuit board.
Further, be provided with the switch on the shell, the switch with control circuit board electric connection, the switch is used for controlling the switching on and shutting down of anti-lost device and alarm device's shutdown.
Further, still be provided with the pilot lamp on the shell, the pilot lamp with control circuit board electric connection, the pilot lamp is used for instructing the state of anti-lost device.
Compared with the prior art, the utility model discloses mainly there is following beneficial effect:
according to the anti-lost device, the Bluetooth chip and the alarm device are respectively and electrically connected with the control circuit board, the Bluetooth chip can be in Bluetooth connection with external equipment with a Bluetooth function, and the alarm device can give an alarm; when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the control circuit board controls the alarm device to give an alarm to remind a user that the distance between the anti-lost device and the external equipment exceeds the effective distance of Bluetooth connection, and abnormal conditions possibly exist. The mode transmission of connecting transmission data through the bluetooth is stable, excellent in use effect, and bluetooth chip power consumption is little, has reduced the work energy consumption of anti-lost device, has promoted user's use and has experienced.
Drawings
Fig. 1 is a schematic structural diagram of an anti-lost device provided in an embodiment of the present invention;
fig. 2 is an exploded schematic view of an anti-lost device according to an embodiment of the present invention.
Reference numerals: 1 shell, 2-fixing mechanism and 3-connecting mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of an anti-lost device provided by the present invention, and referring to fig. 2, the anti-lost device provided by the present embodiment includes a bluetooth chip, an alarm device and a control circuit board; the Bluetooth chip and the alarm device are respectively electrically connected with the control circuit board; the Bluetooth chip can be connected with an external device with a Bluetooth function in a Bluetooth mode; the alarm device is used for giving an alarm; when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the control circuit board controls the alarm device to give an alarm.
Bluetooth is a wireless technology standard that enables short-range data exchange between fixed devices, mobile devices, and building personal area networks.
The bluetooth chip, which is simply a chip with a bluetooth function integrated therein, mainly includes a radio frequency unit for receiving and transmitting signals, a CPU unit for processing data, and a dsp unit for audio decoding.
Here, the bluetooth chip is preferably a 4.0 bluetooth chip. The 4.0 Bluetooth technology has the advantages of low energy consumption, low cost, wide wireless coverage range and more stable connection.
Herein, the external device refers to an electronic device that can provide a bluetooth function, including but not limited to a mobile phone, a tablet computer, a notebook computer, a smart band, a music player, a video player, and the like.
The alarm device includes but is not limited to a buzzer capable of giving a buzzer, an electric bell capable of giving a sound, an alarm capable of giving a sound and light, and the like.
Specifically, the alarm device is used for sending out an alarm signal, when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the Bluetooth chip sends out an instruction to the alarm device through the control circuit board, and the alarm device sends out an alarm according to the instruction.
For example, the anti-lost device and the key are put together, the mobile phone and the anti-lost device are connected in a Bluetooth mode, when the key and the anti-lost device are lost, the distance between a user holding the mobile phone and the anti-lost device is increased until the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the alarm device of the anti-lost device gives an alarm, and the user can immediately check the situation and find the key and the anti-lost device.
Or, carry out the bluetooth with cell-phone and anti-lost device and be connected, the handheld anti-lost device of user, stolen as the cell-phone, the distance that cell-phone apart from anti-lost device becomes far away until between bluetooth chip and the external equipment become the bluetooth connection disconnection state by bluetooth connection state, and the alarm device of anti-lost device sends the warning, and the condition can be looked over immediately to the user, reduces the loss.
According to the anti-lost device, the Bluetooth chip and the alarm device are respectively and electrically connected with the control circuit board, the Bluetooth chip can be in Bluetooth connection with external equipment with a Bluetooth function, and the alarm device can give an alarm; when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the control circuit board controls the alarm device to give an alarm to remind a user that the distance between the anti-lost device and the external equipment exceeds the effective distance of Bluetooth connection, and abnormal conditions possibly exist. The mode transmission of connecting transmission data through the bluetooth is stable, excellent in use effect, and bluetooth chip power consumption is little, has reduced the work energy consumption of anti-lost device, has promoted user's use and has experienced.
As an embodiment of the utility model, the bluetooth chip can read the location of anti-lost device, and the bluetooth chip sends the location to the external equipment of giving anti-lost device bluetooth and connecting.
After the bluetooth chip is connected with the external equipment bluetooth that has bluetooth function, the bluetooth chip can be based on RSSI (signal field intensity indicator) location principle and fix a position the anti-lost device to give the external equipment who is connected with its bluetooth with this location data transmission, download the App that the anti-lost device corresponds on external equipment, can look over the location of anti-lost device and look for the anti-lost device according to the location on App.
Specifically, the wave band of bluetooth is 2400-2483.5 MHz, and bluetooth broadcasts the strength of a bluetooth signal, that is, RSSI field strength information, in addition to the MAC address of the bluetooth signal during broadcasting. According to the RSSI field intensity information, the closer the distance between the Bluetooth receiving end and the transmitting end is, the stronger the signal intensity is, otherwise, the weaker the signal intensity is; the distance relation between the signal intensity and the distance transmitting end can be found out through the conversion of the signal intensity. After the Bluetooth chip is connected with the external equipment through Bluetooth, the external equipment serves as a Bluetooth transmitting end, the anti-lost device serves as a Bluetooth receiving end, and the position of the Bluetooth receiving end can be judged after the Bluetooth receiving end receives the RSSI field intensity signal broadcasted by the transmitting end.
For example, the anti-lost device and the key are put together, the mobile phone and the anti-lost device are connected through Bluetooth, the App for checking the positioning of the anti-lost device is downloaded on the mobile phone, and when the distance between the mobile phone and the anti-lost device is within the distance range of effective connection of the Bluetooth, the position of the anti-lost device, namely the position of the key, can be checked through the App on the mobile phone.
As an embodiment of the utility model, anti-lost device still includes clock circuit, clock circuit and control circuit board electric connection, and clock circuit is used for adjusting anti-lost device and is in same frequency when connecting with the external equipment that anti-lost device bluetooth is connected.
Specifically, a crystal clock circuit is used.
A clock circuit is an oscillating circuit that produces accurate motion like a clock. Almost all digital systems process signals step by step according to beats, all parts of the system are also made according to beats, a clock signal is needed to make all parts of the circuit beat uniformly, and a circuit for generating the clock signal is a clock circuit. The core of the clock circuit is a relatively stable oscillator (generally a crystal oscillator), which generates a sine wave, and the frequency of the sine wave is not necessarily the clock frequency of the circuit operation. All parts of the system are used during work. When a plurality of devices are in communication connection, the clock circuit is used for enabling the plurality of devices to be at the same frequency, and the phenomena of communication signal transmission delay and the like are avoided.
Here, the clock circuit is used for adjusting the anti-lost device and the external device connected with the anti-lost device Bluetooth to be at the same frequency when being connected, so that the alarm accuracy of the anti-lost device is ensured.
Optionally, the alarm device is a buzzer. The buzzer is an electronic buzzer with an integrated structure, adopts direct current voltage for power supply, is widely applied to electronic products such as computers, printers, copiers, alarms, electronic toys, automobile electronic equipment, telephones, timers and the like as sounding devices, and has the advantages of easy control, high cost performance and long service life.
Further, the anti-lost device is provided with a shell 1, and a Bluetooth chip, an alarm device and a control circuit board are arranged inside the shell 1.
For example, the anti-lost device housing 1 can be designed to be a small key ring, so that it is convenient to carry.
Furthermore, the anti-lost device is also provided with a fixing mechanism 2, the fixing mechanism 2 is arranged on the shell 1 of the anti-lost device, and the fixing mechanism 2 is used for fixing the anti-lost device.
The securing mechanism 2 includes, but is not limited to, suction cups, glue, and the like.
For example, one end of the sucker is fixed on the shell 1 of the anti-lost device, and the other end of the sucker is in a shape of a disk with a concave middle part, so that the anti-lost device can be sucked to a position where the anti-lost device needs to be placed under the action of atmospheric pressure. For example, the suction cup can be sucked on the glass of the automobile, and then the anti-lost device can be firmly placed on the automobile.
For another example, the anti-lost device is fixed to the wall by using a double-sided adhesive tape, so as to achieve the purpose of firmly fixing the anti-lost device.
The fixing mechanism 2 facilitates the placement of the anti-lost device, and the anti-lost device can be stably and firmly fixed by the fixing mechanism 2 no matter the anti-lost device is an inclined plane or a vertical plane, so that the use convenience of the anti-lost device is improved.
Preferably, a connecting mechanism 3 is further fixed on the housing 1, and the connecting mechanism 3 is used for enabling the anti-lost device to be hung.
For example, the connecting mechanism 3 is ring-shaped and can be hung on a key ring, and the anti-lost device can be conveniently hung with the key for convenient placement and carrying.
Furthermore, the anti-lost device also comprises an electricity storage element, the electricity storage element is arranged in the shell 1, and the electricity storage element is electrically connected with the control circuit board.
Specifically, the electricity storage component is the lithium cell, and because the characteristic of bluetooth 4.0 low energy consumption, the lithium cell can use for a long time, also can change after the electric quantity exhausts.
Moreover, be provided with the switch on the shell 1, switch and control circuit board electric connection, the switch is used for controlling the switching on and shutting down of anti-lost device and alarm device's shutdown.
Specifically, when the anti-lost device is planned to start to be used, the anti-lost device can be opened by pressing a switch, and the anti-lost device is in a standby state; after the alarm device in the anti-lost device gives an alarm, a user can release the alarm state by pressing the switch, stop the alarm of the anti-lost device and return the anti-lost device to the standby state; when the anti-lost device is scheduled to be stopped, the anti-lost device can be closed by pressing the switch, and the anti-lost device is in a shutdown state.
Optionally, the housing 1 is further provided with an indicator light, the indicator light is electrically connected to the control circuit board, and the indicator light is used for indicating the state of the anti-lost device.
Specifically, the indicator light can be an LED light. For example, when the anti-lost device is in a standby state, the LED lamp displays green, so that the working state of the anti-lost device can be indicated, and a lighting source can be provided for the anti-lost device when the anti-lost device is used at night, so that a user can find the anti-lost device conveniently. When the anti-lost device is in an alarm state, the LED lamp displays red color, and double alarm prompts are provided for a user. When the anti-lost device is closed, the indicator light is turned off.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An anti-lost device is characterized by comprising a Bluetooth chip, an alarm device and a control circuit board; the Bluetooth chip and the alarm device are respectively electrically connected with the control circuit board; the Bluetooth chip can be in Bluetooth connection with an external device with a Bluetooth function; the alarm device is used for giving an alarm; when the Bluetooth connection state between the Bluetooth chip and the external equipment is changed into the Bluetooth connection disconnection state, the control circuit board controls the alarm device to give an alarm.
2. The anti-lost device of claim 1, wherein the bluetooth chip is capable of reading the location of the anti-lost device, and the bluetooth chip transmits the location to the external device bluetooth-connected to the anti-lost device.
3. The anti-lost device of claim 1 further comprising a clock circuit electrically connected to the control circuit board, wherein the clock circuit is used to adjust the frequency of the anti-lost device and an external device connected to the bluetooth of the anti-lost device when connected.
4. The anti-lost device according to claim 1, wherein the alarm device is a buzzer.
5. The anti-lost device according to any one of claims 1 to 4, wherein the anti-lost device is provided with a housing, and the Bluetooth chip, the alarm device and the control circuit board are arranged inside the housing.
6. The anti-lost device according to claim 5, further comprising a fixing mechanism provided on said housing of said anti-lost device, said fixing mechanism being for fixing said anti-lost device.
7. The anti-lost device according to claim 5, wherein a connecting mechanism is further fixed on the housing, and the connecting mechanism is used for enabling the anti-lost device to be hung.
8. The anti-lost device according to claim 5, further comprising an electric storage element disposed in said housing, said electric storage element being electrically connected to said control circuit board.
9. The anti-lost device according to claim 5, wherein a switch is disposed on the housing, the switch is electrically connected to the control circuit board, and the switch is used for controlling the on/off of the anti-lost device and the off of the alarm device.
10. The anti-lost device according to claim 5, wherein an indicator light is further disposed on the housing, the indicator light is electrically connected to the control circuit board, and the indicator light is used for indicating a status of the anti-lost device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792856.4U CN212724300U (en) | 2020-08-25 | 2020-08-25 | Anti-lost device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021792856.4U CN212724300U (en) | 2020-08-25 | 2020-08-25 | Anti-lost device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212724300U true CN212724300U (en) | 2021-03-16 |
Family
ID=74924201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021792856.4U Active CN212724300U (en) | 2020-08-25 | 2020-08-25 | Anti-lost device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212724300U (en) |
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2020
- 2020-08-25 CN CN202021792856.4U patent/CN212724300U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230526 Address after: 518000 Building 201, Yuxing Science and Technology Park, Nanchang Third Industrial Zone, Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Shenzhen Suhao Electronic Technology Co.,Ltd. Address before: 518000 building 202, building B, Yuxing Science Park, Nanchang community, Xixiang street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN XINGYUANSHENG ELECTRONIC TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |