CN219834389U

CN219834389U - Bluetooth positioner for preventing articles from being lost or lost

Info

Publication number: CN219834389U
Application number: CN202321008677.0U
Authority: CN
Inventors: 陈学文; 黄悦诚; 李云; 张敏
Original assignee: Shenzhen Minew Technologies Co ltd
Current assignee: Shenzhen Minew Technologies Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-13
Anticipated expiration: 2033-04-28

Abstract

The utility model discloses a Bluetooth positioner for preventing articles from being lost or lost, which comprises a battery, a filter circuit, a Bluetooth main control chip, an acceleration sensor, an antenna circuit, a driving circuit, a buzzer, an indicator light circuit and a key circuit. According to the utility model, a Bluetooth main control chip is arranged to support an apple Find My search network, a buzzer is arranged in the network to assist a user in positioning equipment or articles by using equipment prompt tones, and different equipment states are switched according to requirements, so that the network can be directly paired and bound with apple equipment such as a tablet, a mobile phone, a computer and the like without downloading an application program, and the article missing search or the lost positioning search is performed on the apple equipment Find My application program; even if the user loses the equipment, the user can also support to wipe off relevant information at the apple equipment end, so that personal privacy information is guaranteed not to fall into illegal bare hands, and personal privacy, personal and property safety are guaranteed.

Description

Bluetooth positioner for preventing articles from being lost or lost

Technical Field

The utility model relates to the technical field of high-voltage wire wiring, in particular to a Bluetooth positioner for preventing articles from being lost or lost.

Background

At present, most bluetooth locators in the market are various in types, and can basically meet the locating and using demands of people on articles, but certain problems still exist. Firstly, each kind of positioning protocol and positioning network has individuation, a user needs to download a corresponding locator application program, and tedious information registration needs to be completed; secondly, positioning navigation during the positioning and starting period of the positioner is generally realized by acquiring the position location of the mobile terminal of the user through a third-party geographic platform. The locating mode and the locating not only increase the operation steps of the user experience locator, but also enable the user privacy data to be acquired by the multiparty channels, and a certain security privacy risk exists.

Disclosure of Invention

Accordingly, a primary object of the present utility model is to provide a bluetooth locator for preventing articles from being lost or lost.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

the embodiment of the utility model provides a Bluetooth positioner for preventing articles from being lost or lost, which comprises a battery, a filter circuit, a Bluetooth main control chip, an acceleration sensor, an antenna circuit, a driving circuit, a buzzer, an indicator light circuit and a key circuit, wherein the battery respectively supplies power to the Bluetooth main control chip, the acceleration sensor and the driving circuit after passing through the filter circuit, a signal output end of the Bluetooth main control chip is respectively connected with a signal input end of the antenna circuit, a signal output end of the driving circuit and a signal input end of the indicator light circuit, the Bluetooth main control chip is in communication connection with the acceleration sensor, a signal output end of the key circuit is connected with a signal input end of the Bluetooth main control chip, and an output end of the driving circuit is connected with the buzzer.

In the above scheme, the filter circuit includes first resistor, second resistor, fifth condenser, first power output, second power output, first end of first resistor is connected with the first end of second resistor and the positive pole of battery respectively, the second end of first resistor is connected with first power output, the second end of second resistor is connected with the first end and the second power output of fifth condenser respectively, the second end of fifth condenser is connected with the negative pole of battery and then is grounded.

In the above scheme, the acceleration sensor comprises an acceleration sensor chip, a third resistor and a sixth capacitor, wherein the CS end of the acceleration sensor chip is connected with the third resistor in series and then is connected with the first power supply output end, the GND end of the acceleration sensor chip is connected with the VDD_IO end of the acceleration sensor chip and the first power supply output end respectively after being connected with the sixth capacitor in series, the INT1 end of the acceleration sensor chip is connected with the P0.07 end of the Bluetooth master control chip, the INT2 end of the acceleration sensor chip is connected with the P0.08 end of the Bluetooth master control chip, the SCL end of the acceleration sensor chip is connected with the P0.11 end of the Bluetooth master control chip, and the SDA end of the acceleration sensor chip is connected with the P0.12 end of the Bluetooth master control chip.

In the above scheme, antenna circuit includes bluetooth antenna, first condenser, second condenser, third condenser, fourth condenser, first inductance, second inductance, the first end of first condenser is connected with the first end of first inductance and bluetooth master control chip's ANT end respectively, the second end of first inductance is connected with the first end of second condenser, the first end of third condenser and the first end of second inductance respectively, the second end of second inductance is connected with the first end of fourth condenser and bluetooth antenna respectively, the second end of first inductance is connected with the VSS end of bluetooth master control chip back ground, the second end of second condenser, the second end of third condenser and the second end of fourth condenser all ground connection.

In the above scheme, the driving circuit comprises a piezoelectric detection driver and a seventh capacitor, wherein the EN1 end of the piezoelectric detection driver is connected with the P0.04 end of the Bluetooth main control chip, the EN2 end of the piezoelectric detection driver is connected with the P0.03 end of the Bluetooth main control chip, the DIN end of the piezoelectric detection driver is connected with the P0.02 end of the Bluetooth main control chip, and the CN2 end of the piezoelectric detection driver is connected with the seventh capacitor in series and then is connected with the buzzer.

In the above scheme, the key circuit comprises a switch, a first end of the switch is connected with a P0.131 end of the Bluetooth main control chip, and a second end of the switch is grounded.

In the above scheme, the indicator light circuit includes a first light emitting diode, a fourth resistor, a second light emitting diode, and a fifth resistor, where a first end of the fourth resistor is connected to the P0.17 end of the bluetooth master control chip, a second end of the fourth resistor is connected in series with the first light emitting diode and then grounded, a first end of the fifth resistor is connected to the P0.18 end of the bluetooth master control chip, and a second end of the fifth resistor is connected in series with the second light emitting diode and then grounded.

Compared with the prior art, the Bluetooth master control chip is arranged to support the apple Find My search network, even if the equipment is in an offline state, the function expansion of the "Find My" search network is realized through positioning lost equipment, the whole process is completely anonymous and encrypted, even if apple or third party manufacturers cannot check the position or information of the equipment, the worry about safety and privacy during the positioning of a user is reduced, and a buzzer is built in to assist the user in positioning the position of the equipment or an article by using the equipment prompt tone; the key is supported, and different equipment states are switched according to requirements, such as starting pairing broadcast, enabling pairing binding with series apple equipment, searching serial numbers and restoring factory settings, enabling users to directly pair binding with apple equipment such as a tablet, a mobile phone, a computer and the like without downloading application programs, and therefore experiencing article loss searching or lost positioning searching of the Find My application program of the apple equipment; even if the user loses the equipment, the user can also support to wipe off relevant information at the apple equipment end, so that personal privacy information is guaranteed not to fall into illegal bare hands, and personal privacy, personal and property safety are guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of a bluetooth positioner for preventing articles from being lost or lost according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a bluetooth master control chip according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a filter circuit according to an embodiment of the present utility model;

FIG. 4 is a schematic structural diagram of an acceleration sensor according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a driving circuit according to an embodiment of the utility model;

FIG. 6 is a schematic diagram of a key circuit according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of an indicator light circuit according to an embodiment of the utility model.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the devices or elements being referred to must have specific directions, be constructed and operated in specific directions, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration, are not to be construed as limitations of the present patent, and the specific meanings of the terms described above may be understood by those of ordinary skill in the art according to specific circumstances.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, article or apparatus that comprises the element.

As shown in fig. 1-6, a first embodiment of the present utility model provides a bluetooth positioner for preventing objects from being lost or lost, which includes a battery, a filter circuit, a bluetooth main control chip, an acceleration sensor, an antenna circuit, a driving circuit, a buzzer, an indicator light circuit, and a key circuit, wherein the battery respectively supplies power to the bluetooth main control chip, the acceleration sensor, and the driving circuit after passing through the filter circuit, a signal output end of the bluetooth main control chip is respectively connected with a signal input end of the antenna circuit, a signal output end of the driving circuit, and a signal input end of the indicator light circuit, the bluetooth main control chip is in communication connection with the acceleration sensor, a signal output end of the key circuit is connected with a signal input end of the bluetooth main control chip, and an output end of the driving circuit is connected with the buzzer.

As shown in fig. 1, 2 and 3, the filter circuit includes a first resistor R1, a second resistor R2, a fifth capacitor C5, a first power output terminal VCC, and a second power output terminal VCC-NRF, where a first end of the first resistor R1 is connected to a first end of the second resistor R2 and a positive electrode of the battery BAT, a second end of the first resistor R1 is connected to the first power output terminal VCC, a second end of the second resistor R2 is connected to a first end of the fifth capacitor C5 and the second power output terminal VCC-NRF, and a second end of the fifth capacitor C5 is connected to a negative electrode of the battery BAT and then grounded.

As shown in fig. 1, fig. 2 and fig. 4, the acceleration sensor includes an acceleration sensor chip U2, a third resistor R3, and a sixth capacitor C6, where a CS end of the acceleration sensor chip U2 is connected in series with the third resistor R3 and then connected to the first power output VCC, a GND end of the acceleration sensor chip U2 is connected in series with the sixth capacitor C6 and then connected to a vdd_io end and the first power output VCC of the acceleration sensor chip U2, an INT1 end of the acceleration sensor chip U2 is connected to a P0.07 end of the bluetooth master chip U1, an INT2 end of the acceleration sensor chip U2 is connected to a P0.08 end of the bluetooth master chip U1, an SCL end of the acceleration sensor chip U2 is connected to a P0.11 end of the bluetooth master chip U1, and an SDA end of the acceleration sensor chip U2 is connected to a P0.12 end of the bluetooth master chip U1.

As shown in fig. 1 and fig. 2, the antenna circuit includes a bluetooth antenna ANT, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a first inductor L1, and a second inductor L2, where a first end of the first capacitor C1 is connected to a first end of the first inductor L1 and an ANT end of the bluetooth master control chip U1, a second end of the first inductor L1 is connected to a first end of the second capacitor C2, a first end of the third capacitor C3, and a first end of the second inductor L2, a second end of the second inductor L2 is connected to a first end of the fourth capacitor C4 and the bluetooth antenna ANT, a second end of the first inductor L1 is connected to VSS end of the bluetooth master control chip U1, and a second end of the second capacitor C2, a second end of the third capacitor C3, and a second end of the fourth capacitor C4 are all grounded.

As shown in fig. 1, fig. 2 and fig. 5, the driving circuit includes a piezoelectric detection driver U3 and a seventh capacitor C7, an EN1 end of the piezoelectric detection driver U3 is connected with a P0.04 end of the bluetooth main control chip U1, an EN2 end of the piezoelectric detection driver U3 is connected with a P0.03 end of the bluetooth main control chip U1, a DIN end of the piezoelectric detection driver U3 is connected with a P0.02 end of the bluetooth main control chip U1, and a CN2 end of the piezoelectric detection driver U3 is connected with a buzzer after being connected with the seventh capacitor C7 in series.

As shown in fig. 1, 2 and 6, the key circuit includes a switch K1, a first end of the switch K1 is connected to a P0.131 end of the bluetooth master control chip U1, and a second end of the switch K2 is grounded.

As shown in fig. 1, 2 and 7, the indicator light circuit includes a first light emitting diode D1, a fourth resistor R4, a second light emitting diode D2, and a fifth resistor R5, where a first end of the fourth resistor R4 is connected to the P0.17 end of the bluetooth master control chip U1, a second end of the fourth resistor R4 is connected in series to the first light emitting diode D1 and then grounded, a first end of the fifth resistor R5 is connected to the P0.18 end of the bluetooth master control chip U1, and a second end of the fifth resistor R5 is connected in series to the second light emitting diode D2 and then grounded.

The working principle of the utility model is as follows:

as shown in fig. 1-7, the utility model can be applied to the rapid positioning of personal backpacks, luggage cases, handbags and other asset articles, products can be activated by the apple mobile equipment, and the products can emit sound through the buzzer to rapidly position the asset and other articles, so that the positioning efficiency is improved and the loss risk is reduced; and a 2.4G low-power Bluetooth chip is used for carrying out real-time communication with the apple equipment end.

The Bluetooth main control chip U1 adopts a low-power consumption Bluetooth chip and supports a Bluetooth 5.0 Bluetooth protocol; the information collected by the Bluetooth main control chip U1 is broadcast through an antenna and received by the cloud; meanwhile, the product can be operated through the apple end equipment, a user sends a lighting or alarm instruction to the bound product through the apple end equipment, and the Bluetooth antenna ANT receives the related instruction to execute sounding or alarm action; bluetooth communication, pilot lamp circuit control, the alarm work of buzzing piece of bluetooth locator are accomplished to bluetooth main control chip U1, are connected with outside bluetooth equipment through bluetooth antenna ANT promptly, realize position location and safety control, realize closely wireless communication, accomplish the data interaction. And controlling the indicator light circuit to correspondingly light up or light out according to the electrified state of the current Bluetooth positioner, for example, when the electric quantity of the battery is insufficient, the Bluetooth main control chip U1 controls the indicator light circuit to send out a first indicator signal, for example, to send out continuously flashing light, thereby reminding a user to replace the battery in time and preventing the failure of positioning caused by shutdown due to the excessively low electric quantity.

The Bluetooth locator is added with a 3-axis acceleration sensor circuit, and the circuit adopts an external pull-up resistor third resistor R3 for IC communication, so that not only is the driving capability enhanced, but also the interference of the outside on communication is enhanced, and an ultra-low power consumption working mode is used.

The acceleration sensor chip U2 is in communication connection with the Bluetooth master control chip U1 through an I2C bus; the IC bus is a two-wire bus, the communication circuit is simple, the multiplexing and portability are extremely strong, the space of the circuit board and the number of chip pins are reduced, the interconnection cost is reduced, meanwhile, the acceleration sensor chip U2 can enter a low-power consumption state during working, for example, when the address of the acceleration sensor chip U2 is not selected, the battery power consumption is reduced, and the working endurance time of the Bluetooth locator is prolonged. Meanwhile, a driver of the Bluetooth main control chip U1 is combined with an acceleration signal sensed by the acceleration sensor chip U2 to automatically identify whether the Bluetooth positioner is in a motion state or a static state, when the Bluetooth positioner moves, the Bluetooth main control chip U1 controls the Bluetooth antenna ANT to broadcast according to a normal broadcasting frequency, when the acceleration sensor chip U2 monitors that the Bluetooth positioner does not move for a long time, the broadcasting frequency of the Bluetooth positioner is reduced, the Bluetooth positioner enters a dormant state to reduce power consumption, and once the Bluetooth positioner is monitored to move, the dormant state is immediately ended, the Bluetooth positioner returns to a normal state, and data loss is avoided.

The acceleration sensor chip U2 is triggered by the motion state or the static state of the Bluetooth positioner to feed back and output corresponding acceleration signals to the Bluetooth main control chip U1, so that the Bluetooth main control chip U1 adjusts the broadcasting frequency of the Bluetooth antenna and switches the working state according to the acceleration signals.

When the Bluetooth locator is used, a user can use the switch K1 to trigger the state switching of the equipment, such as starting pairing broadcasting, restoring factory settings and the like; meanwhile, the locator can detect the movement of the article due to the built-in acceleration sensor chip U2, and gives an alarm when the article has unknown movement, but the function needs the article to be in a separated state, the detection is not carried out in a state of being connected with paired equipment, and finally the use work of the Bluetooth locator is completed.

The driving circuit comprises a piezoelectric detection driver U3, a charge pump boost converter is integrated in the piezoelectric detection driver U3, and the charge pump can work in 1X, 2X and 3X modes and can flexibly set the decibels of the buzzer in different scenes. The unique driving technology has the characteristics of small inrush current, low electromagnetic interference and high efficiency. Built-in automatic shutdown and wake-up ensure longer battery life. The device also has the functions of overheat shutdown, overcurrent protection, overvoltage protection and undervoltage locking.

The locator is compatible with the Apple Find My search network protocol, and when the locator is applied, the locator is connected and paired with a Find My search network program on Apple equipment, and the object is associated with the logged Apple ID on the Apple equipment, so that the relevant function of Find My search is realized. When the device is retrieved, as Pad, iPhone, macbook and other Apple devices (paired with the Find My function) form a huge network, for example, when an article supporting the Find My protocol is carried out, the article itself does not have GPS and cannot be positioned, but the Apple devices in the network can provide own GPS data and associate with Apple IDs of the article and upload the GPS data to an Apple server, and the server is responsible for receiving and storing the encrypted positioning related data, so that the owner can decrypt and read original position information from the encrypted data, thereby realizing the retrieval function of the article.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the present utility model.

Claims

1. A bluetooth locator for avoiding article to lose or lose, its characterized in that includes battery, filter circuit, bluetooth main control chip, acceleration sensor, antenna circuit, drive circuit, bee calling organ, pilot lamp circuit, button circuit, the battery passes through behind the filter circuit respectively for bluetooth main control chip, acceleration sensor and drive circuit power supply, bluetooth main control chip's signal output part is connected with antenna circuit's signal input part, drive circuit's signal output part and pilot lamp circuit's signal input part respectively, bluetooth main control chip is connected with acceleration sensor communication, button circuit's signal output part is connected with bluetooth main control chip's signal input part, drive circuit's output is connected with bee calling organ.

2. The bluetooth positioner for preventing article from being lost or lost according to claim 1, wherein the filter circuit comprises a first resistor, a second resistor, a fifth capacitor, a first power output terminal, and a second power output terminal, the first end of the first resistor is connected to the first end of the second resistor and the positive electrode of the battery, the second end of the first resistor is connected to the first power output terminal, the second end of the second resistor is connected to the first end of the fifth capacitor and the second power output terminal, respectively, and the second end of the fifth capacitor is connected to the negative electrode of the battery and then grounded.

3. The bluetooth positioner for preventing articles from being lost or lost according to claim 2, wherein the acceleration sensor comprises an acceleration sensor chip, a third resistor and a sixth capacitor, wherein a CS end of the acceleration sensor chip is connected with the third resistor in series and then is connected with the first power output end, a GND end of the acceleration sensor chip is connected with a VDD_IO end and the first power output end of the acceleration sensor chip in series and then is connected with the first power output end of the acceleration sensor chip respectively, an INT1 end of the acceleration sensor chip is connected with a P0.07 end of a bluetooth master chip, an INT2 end of the acceleration sensor chip is connected with a P0.08 end of the bluetooth master chip, an SCL end of the acceleration sensor chip is connected with a P0.11 end of the bluetooth master chip, and an SDA end of the acceleration sensor chip is connected with a P0.12 end of the bluetooth master chip.

4. A bluetooth positioner for avoiding article to be lost or lost according to claim 3, wherein the antenna circuit comprises a bluetooth antenna, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a first inductor and a second inductor, wherein the first end of the first capacitor is respectively connected with the first end of the first inductor and the ANT end of the bluetooth master control chip, the second end of the first inductor is respectively connected with the first end of the second capacitor, the first end of the third capacitor and the first end of the second inductor, the second end of the second inductor is respectively connected with the first end of the fourth capacitor and the bluetooth antenna, the second end of the first inductor is grounded after being connected with the VSS end of the bluetooth master control chip, and the second end of the second capacitor, the second end of the third capacitor and the second end of the fourth capacitor are all grounded.

5. The bluetooth positioner for preventing articles from being lost or lost according to claim 4, wherein the driving circuit comprises a piezoelectric detection driver and a seventh capacitor, the EN1 end of the piezoelectric detection driver is connected with the P0.04 end of the bluetooth main control chip, the EN2 end of the piezoelectric detection driver is connected with the P0.03 end of the bluetooth main control chip, the DIN end of the piezoelectric detection driver is connected with the P0.02 end of the bluetooth main control chip, and the CN2 end of the piezoelectric detection driver is connected with the buzzer after being connected with the seventh capacitor in series.

6. The bluetooth positioner for preventing loss or loss of an article according to claim 5, wherein the key circuit comprises a switch, a first end of the switch is connected to a P0.131 end of the bluetooth master control chip, and a second end of the switch is grounded.

7. The bluetooth positioner for preventing articles from being lost or lost according to claim 6, wherein the indicator light circuit comprises a first light emitting diode, a fourth resistor, a second light emitting diode and a fifth resistor, the first end of the fourth resistor is connected with the P0.17 end of the bluetooth master control chip, the second end of the fourth resistor is connected with the first light emitting diode in series and then grounded, the first end of the fifth resistor is connected with the P0.18 end of the bluetooth master control chip, and the second end of the fifth resistor is connected with the second light emitting diode in series and then grounded.