CN209765707U

CN209765707U - anti-loss device for children

Info

Publication number: CN209765707U
Application number: CN201920808585.8U
Authority: CN
Inventors: 陈伟; 朱静
Original assignee: Chengdu Aeronautic Polytechnic
Current assignee: Chengdu Aeronautic Polytechnic
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2019-12-10
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a child anti-loss device, which comprises a guardian end and a quilt child end, wherein the guardian end is in communication connection with the child end; the children end comprises a GPS module, a first alarm unit, a relay, a first microprocessor, a first signal receiving and sending unit and a first power module, the first microprocessor is in communication connection with coils of the GPS module, the first alarm unit, the first signal receiving and sending unit and the relay respectively, the first power module is electrically connected with the GPS module, the alarm unit, the first signal receiving and sending unit and the first microprocessor respectively, and a contact of the relay is connected with the first power module. When guardian end was kept away from to children's end, children's end and guardian end all can report to the police and remind the user, prevent that children from losing, and the GPS module is fixed a position and is provided the position children, shows on the display screen of guardian end, is convenient for retrieve the children of wandering away, and after children wandered away, guardian's accessible control relay normal close prevents that children's end from being shut down by the people, has improved children's security.

Description

Anti-loss device for children

Technical Field

The utility model relates to a wireless information technology field, concretely relates to children prevent losing device.

Background

Positioning and tracking technologies such as a GPS (global positioning system) and the like are widely applied to devices such as a mobile phone and the like, are also used for tracking the position of a child and send the position information of the child to a monitoring end. The disadvantages of the prior art include: 1. the battery endurance problem is caused by the higher power of the existing product; 2. the existing positioning tracker has single function and loses all use values after power consumption; 3. the existing positioning tracker is often complex to operate and is easy to malfunction or shut down due to misoperation of children; 4. the automatic alarm can not be realized when the distance between the child and the guardian is far.

SUMMERY OF THE UTILITY MODEL

Not enough to the above-mentioned among the prior art, the utility model provides a pair of children prevent losing device has solved the problem that children's location difficulty and unable real-time warning.

In order to achieve the purpose of the invention, the utility model adopts the technical scheme that: a child anti-loss device comprises a guardian end and a child end, wherein the guardian end is in communication connection with the child end;

The child end comprises a GPS module, a first alarm unit, a relay, a first microprocessor, a first signal transceiving unit and a first power module, wherein the first microprocessor is respectively in communication connection with the GPS module, the first alarm unit, the first signal transceiving unit and a coil of the relay;

The guardian end comprises a second alarm unit, a second microprocessor, a display screen, a second signal receiving and sending unit and a second power module, wherein the second microprocessor is respectively in communication connection with the second alarm unit, the second signal receiving and sending unit and the display screen, and the second power module is respectively electrically connected with the second alarm unit, the display screen, the second signal receiving and sending unit and the second microprocessor;

The first signal transceiving unit and the second signal transceiving unit are connected through wireless communication.

The utility model has the advantages that: when the GPS signals of the child end and the guardian end are good, the distance between the child end and the parent end is calculated, when the distance is larger than 10 meters, both the child end and the guardian end can give an alarm to remind, when the GPS signals are weak, the distance between the child end and the guardian end is directly judged through the first signal receiving and sending unit and the second signal receiving and sending unit, when the distance between the child end and the guardian end is larger than 10 meters, the communication between the first signal receiving and sending unit and the second signal receiving and sending unit is interrupted, both the child end and the guardian end can give an alarm to remind a user, and therefore the child is prevented from being lost.

Further: the first alarm unit and the second alarm unit both comprise LED lamps and buzzers.

The beneficial effect of adopting the further scheme is as follows: the LED lamp and the buzzer can attract the attention of guardians or passers-by.

Further: the first power supply module comprises a rechargeable battery and a standby storage battery.

The beneficial effect of adopting the further scheme is as follows: the power supply is supplied to the child end through the standby power supply, so that the problem that the child end cannot be positioned and alarm due to power failure is solved.

Further: the first microprocessor and the second microprocessor are both single-chip microcomputers.

The beneficial effect of adopting the further scheme is as follows: the single chip microcomputer has the advantages of strong function, low price, small volume and high reliability.

Further: the first signal transceiving unit and the second signal transceiving unit are both wireless data transmission chips.

The beneficial effect of adopting the further scheme is as follows: the wireless data transmission chip can realize the signal transmission between the child end and the guardian end, and the alarm is automatically given when the signal transmission is interrupted.

Further: the guardian end and the child end are provided with a fixed and unique pairing number.

The beneficial effect of adopting the further scheme is as follows: and fixedly pairing the guardian end and the child end through the pairing serial numbers.

Drawings

Fig. 1 is a block diagram of the present invention.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1, a child anti-loss device includes a guardian end and a child-to-be end, wherein the guardian end is in communication connection with the child-to-be end;

The utility model has the advantages that: when guardian end was kept away from to children's end, children's end and guardian end all can report to the police and remind the user, prevent that children from losing, and the GPS module is fixed a position and is provided the position children, shows on the display screen of guardian end, is convenient for retrieve the children of wandering away, and after children wandered away, guardian's accessible control relay normal close prevents that children's end from being shut down by the people, has improved children's security.

In an embodiment of the present invention, the model of the GPS module is EPPINNO-a13-01, the models of the first signal transceiver unit and the second signal transceiver unit are nRF905 chips, the relay is a normally closed relay, and the model is JQX-15F (T90) 1D.

In an embodiment of the present invention, the first alarm unit and the second alarm unit each include an LED lamp and a buzzer, the model of the LED lamp is HV35281RGB06CC-3A, and the model of the buzzer is QMB-105A; the LED lamp and the buzzer can attract the attention of guardians or passers-by.

In one embodiment of the present invention, the first power module includes a rechargeable battery and a backup battery; the power supply is supplied to the child end through the standby power supply, so that the problem that the child end cannot be positioned and alarm due to power failure is solved.

In one embodiment of the present invention, the first microprocessor and the second microprocessor are both AT89C 51; the single chip microcomputer AT89C51 has the advantages of strong function, low price, small volume and high reliability.

in an embodiment of the present invention, the first signal transceiver unit and the second signal transceiver unit are both wireless data transmission chips, which can realize signal transmission between the child end and the guardian end, and automatically alarm when the signal transmission is interrupted, with the model number of nRF 905; the nRF905 chip has low power consumption and low cost.

In one embodiment of the present invention, the guardian end and the child end have a fixed and unique pairing number; and fixedly pairing the guardian end and the child end through the pairing serial numbers.

The utility model discloses a working process does: when the GPS signals of the child end and the guardian end are good, the distance between the child end and the parent end is calculated, when the distance is more than 10 meters, the first alarm unit and the second alarm unit alarm and remind, when the GPS signals are weak, the distance between the child end and the guardian end is directly judged through the first signal transceiver unit and the second signal transceiver unit, when the distance between the child end and the guardian end is more than 10 meters, the communication between the first signal transceiver unit and the second signal transceiver unit is interrupted, the first microprocessor controls the LED lamp of the first alarm unit to be on and the buzzer to emit buzzing sounds, the second microprocessor controls the LED lamp of the second alarm unit to be on and the buzzer to emit buzzing sounds to remind the guardian, the guardian can quickly find the lost child according to the sound and the light, when the distance is farther, the position of the child can be displayed through the display screen of the guardian end, and the guardian can control the normally closed relay in the child end after the child is lost, the problem that the child end cannot be positioned and alarm due to the fact that the child end is powered off is solved.

When the power switch of the child end is turned on, the controller checks whether each module is normal or not, and starts to wait for the inquiry signal of the guardian end, when the inquiry signal of the paired guardian end is not received within a period of time, the controller gives an alarm through the second alarm unit, and when the inquiry signal of the paired guardian end is received, the controller sends an answer signal and a pairing number. When the answer signal of the child end is not received within a specific time, the alarm is given through the first alarm unit.

Claims

1. a child anti-loss device is characterized by comprising a guardian end and a child-to-be end, wherein the guardian end is in communication connection with the child end;

2. The child loss prevention device of claim 1, wherein the first alarm unit and the second alarm unit each comprise an LED lamp and a buzzer.

3. the child loss prevention device of claim 1, wherein the first power module comprises a rechargeable battery and a backup battery.

4. The child loss prevention device of claim 1, wherein the first microprocessor and the second microprocessor are each a single-chip microcomputer.

5. the child loss prevention device according to claim 1, wherein the first signal transceiver unit and the second signal transceiver unit are wireless data transmission chips.

6. The child loss prevention device of claim 1, wherein the parent end and the child end have a fixed, unique pairing number.