CN109410518A - A kind of children's safety protective device based on infrared acquisition - Google Patents

A kind of children's safety protective device based on infrared acquisition Download PDF

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Publication number
CN109410518A
CN109410518A CN201811223258.2A CN201811223258A CN109410518A CN 109410518 A CN109410518 A CN 109410518A CN 201811223258 A CN201811223258 A CN 201811223258A CN 109410518 A CN109410518 A CN 109410518A
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CN
China
Prior art keywords
zigbee
module
children
led lamp
infrared
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811223258.2A
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Chinese (zh)
Inventor
姚澜
姚文
徐雷
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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Publication date
Application filed by Nanjing University of Science and Technology filed Critical Nanjing University of Science and Technology
Priority to CN201811223258.2A priority Critical patent/CN109410518A/en
Publication of CN109410518A publication Critical patent/CN109410518A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/0202Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/0202Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0233System arrangements with pre-alarms, e.g. when a first distance is exceeded
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/0202Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0266System arrangements wherein the object is to detect the exact distance between parent and child or surveyor and item
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/0202Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0277Communication between units on a local network, e.g. Bluetooth, piconet, zigbee, Wireless Personal Area Networks [WPAN]

Abstract

The children's safety protective device based on infrared acquisition that the invention discloses a kind of, including be sequentially connected detecting module, ZigBee communication module, alarm module.Wherein ZigBee communication module includes a ZigBee coordinator node, n ZigBee terminal node, and detecting module includes n infrared sensor and n range sensor, and alarm module includes n+1 buzzer LED lamp module;ZigBee coordinator node is connected with one of buzzer LED lamp module in n+1 buzzer LED lamp module, each ZigBee terminal node is connected with a detecting module, a buzzer LED lamp module.The present invention, which can be realized, to give warning in advance, and protects children's safety in time, the cost of device is low, high reliablity, it is small in size be convenient for carrying, install it is simple, it is applied widely.

Description

A kind of children's safety protective device based on infrared acquisition
Technical field
The invention belongs to children's safeties to protect field, in particular to a kind of children's safety based on infrared acquisition protects dress It sets.
Background technique
With the development of society, the problem of children, increasingly causes our concern.On the one hand, parent's work of child is non- Chang Fanmang, competitive pressure is increasing, many times seems that the time is inadequate in terms of looking after child;On the other hand, originally social That is of three generations under one roof, parent working, family of the grandparents with granddaughter is also fewer and fewer, in addition the grandparents having will also on Class, more families are to ask nurse to look after child, and this brings more worries;At the same time, with China's economy Development, more and more town dwellers have been owned by the house of oneself, and understand fine fitment and purchase more furniture appliance, this There are more security risks again: such as corner of refrigerator, toilet lid, drawer and wardrobe door, tables and chairs and tea table, power outlet Etc..And these injuries are originally preventable, but most of children occur unexpectedly the reason is that since caregiver nurses Caused by improper, most of parent can not accomplish that absolutely attention is placed on to nurse above when nursing children, one Denier carelessness, will lead to the consequence that can not be saved.
Child product currently on the market is concentrated mainly on child safety seat, child-resistant packaging, children's safety Lock etc., such child product is mostly focused on and passively protects, not early warning mechanism in advance;Protection Product body simultaneously Product is huge, it has not been convenient to install and carry, often due to design defect brought by itself is in meeting in the process for protecting children In cannot play complete protective effect.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of children's safety protective device based on infrared acquisition.
The technical solution for realizing the aim of the invention is as follows: a kind of children's safety protective device based on infrared acquisition, packet Include the detecting module being sequentially connected, ZigBee communication module, alarm module;ZigBee communication module includes that a ZigBee coordinates Device node, n ZigBee terminal node, detecting module include n infrared sensor and n range sensor, alarm module packet Include n+1 buzzer LED lamp module;ZigBee coordinator node and one of buzzing in n+1 buzzer LED lamp module Device LED lamp module is connected, each ZigBee terminal node is connected with a detecting module, a buzzer LED lamp module;
The detecting module, for detecting whether ZigBee terminal node of the human body in ZigBee communication module, And detection human body is sent to its corresponding ZigBee terminal at a distance from the ZigBee terminal node, and by the signal detected Node;
The ZigBee communication module for the transmission of wireless signal, and controls buzzer LED lamp module and alarms; Wherein, the signal of received corresponding detecting module output is transmitted to ZigBee coordinator by the ZigBee terminal node Node, ZigBee terminal node and ZigBee coordinator node control its corresponding buzzer LED lamp module respectively and alarm;
The alarm module, for carrying out warning reminding.
Compared with prior art, the present invention its remarkable advantage are as follows: 1) pyroelectric infrared sensor, Distance-sensing in the present invention Whether the combination of device can detect children close to dangerous goods in advance, control buzzer LED by ZigBee communication module later Lamp module is alarmed, and realizes the mechanism that gives warning in advance;2) at low cost, high reliablity of the invention, it is applied widely;3) body of the present invention Product is small and exquisite, is convenient for carrying, and installation is simple, when and where can install at any time.
The invention will now be described in further detail with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the children's safety protective device design diagram the present invention is based on infrared acquisition.
Fig. 2 is the pyroelectric infrared sensor work flow diagram of children's safety protective device of the present invention.
Fig. 3 is buzzer LED light work flow diagram at the ZigBee coordinator node of children's safety protective device of the present invention.
Fig. 4 is buzzer LED light work flow diagram at the ZigBee terminal node of children's safety protective device of the present invention.
Fig. 5 is the children's safety protective device design diagram in the embodiment of the present invention based on infrared acquisition.
Fig. 6 is pyroelectric infrared sensor monitoring visual angle figure in the embodiment of the present invention, wherein (a) is sensor top view, (b) it is X-axis detection angle figure, (c) is Y-axis detection angle figure.
Specific embodiment
In conjunction with Fig. 1, the present invention is based on the children's safety protective device of infrared acquisition, including be sequentially connected detecting module, ZigBee communication module, alarm module;ZigBee communication module includes a ZigBee coordinator node, n ZigBee terminal Node, detecting module include n infrared sensor and n range sensor, and alarm module includes n+1 buzzer LED light mould Block;ZigBee coordinator node is connected with one of buzzer LED lamp module in n+1 buzzer LED lamp module, each A ZigBee terminal node is connected with a detecting module, a buzzer LED lamp module.
Detecting module, for detecting whether ZigBee terminal node of the human body in ZigBee communication module, and Detection human body is sent to its corresponding ZigBee terminal section at a distance from the ZigBee terminal node, and by the signal detected Point;
ZigBee communication module for the transmission of wireless signal, and controls buzzer LED lamp module and alarms;Wherein, The signal of received corresponding detecting module output is transmitted to ZigBee coordinator node by ZigBee terminal node, ZigBee terminal node and ZigBee coordinator node control its corresponding buzzer LED lamp module respectively and alarm;
Alarm module, for carrying out warning reminding.
Further, infrared sensor is pyroelectric infrared sensor, in order to only to the sensitive for infrared radiation of human body, Its radiation, which is shown up, is typically covered with special Fresnel optical filter, makes the interference of environment by apparent control action.Passively Infrared probe, sensor include the pyroelectricity member of two mutual serial or parallel connections.And manufactured two electric polarization directions are just Well on the contrary, ambient background radiation releases element almost effect having the same to two heat, so that it is generated release effect and cancels out each other, Then detector no signal exports.In conjunction with Fig. 2, once in people's intrusion detection region, human infrared radiation is poly- by partial mirror Coke, and received by pyroelectricity member, but the heat that two panels pyroelectricity member receives is different, pyroelectricity is also different, cannot offset, and passes through Information is set to the signal of someone after signal processing, issues the ZigBee terminal node being attached thereto;It is accidentally swarmed into for reply The situation of danger zone and backed off after random, setting pyroelectric infrared sensor cycle operation are constantly detected and are updated if not powering off Signal.
Further, range sensor uses infrared distance sensor.The distance between testee is arrived according to sensor Difference exports corresponding voltage, obtains range data by corresponding scaled value.
Further, ZigBee module uses star-like or tree-like or net-shaped topological structure, suitable for different applied fields Scape.Wherein Star Network structure is simple, is easy to extend, and fault diagnosis and isolation are easy, and is suitable for the lesser scene of area;It is tree-like Topology includes a coordinator and a series of router and terminal node, and coordinator connects a series of router and terminal Node, the router of child node also can connect a series of router and terminal node, repeat multiple levels;Mesh topology Include a coordinator and a series of routers and terminal node.Mesh network topologies are advised with more flexible information router Then, more efficiently, and once a routed path there is a problem for the communication of information, and information can be automatically along others Routed path is transmitted, which can also form extremely complex network;Network is also equipped with self-organizing, self-healing function Energy.Tree-like and netted property network is suitable for structure is complicated, the relatively large scene of area.
Further, the audible frequency of the buzzer in the corresponding buzzer LED lamp module of each ZigBee terminal node, Distance of the tone height according to human body apart from terminal node changes, and distance is closer, and audible frequency, tone are higher, reach tight The effect suddenly alarmed;Distance is remoter, and audible frequency, tone are lower.
In conjunction with Fig. 3, Fig. 4, buzzer LED light working principle is such as at ZigBee coordinator node, at ZigBee terminal node Under: buzzer, LED are controlled using ZigBee coordinator node, terminal node respectively, triode has driven on-off action, base The high level of pole makes triode saturation conduction, makes buzzer sounding;And base stage low level then closes triode, buzzer stops Sounding ensure that the brightness of intensity of sound and highlighted LED.This buzzer is directly driven using PWM delivery outlet.Utilize microprocessor The signal of sending exports certain square wave to directly drive buzzer.As long as opening PWM output, PWM delivery outlet can export should The square wave of frequency utilizes the drive waveform buzzer.For the buzzer LED lamp module at ZigBee coordinator, in its reception To after the control signal of ZigBee coordinator, triode drives buzzer sounding, and LED light is shinny, until parent finds children institute It postpones in place and the module is turned off manually;For the buzzer LED lamp module at ZigBee terminal node, according to received After the real-time control signal that ZigBee terminal node transmits, the working condition of buzzer LED light is controlled, is accidentally swarmed into cope with Danger zone and the situation of backed off after random.
When in use, ZigBee terminal node is connected with detecting module with alarm module, is placed in for children easily The places such as the place caused danger, such as window, power outlet, boiler, for having monitored whether that children are close, once close, Then it is separate to issue alarm warning children for terminal;Meanwhile ZigBee coordinator node is connected with alarm module, is placed in parent End, when ZigBee terminal node issues alarm, for prevent this moment parent at the alarm apart from too far and can't hear, Alarm at ZigBee coordinator node also can sounding, remind parent to rush at alarm at once, check children's safety.According to not Different topological structures can be used in same applicable scene, the communication between terminal node and coordinator node.
When children enter danger zone, pyroelectric infrared sensor detects that someone swarms into, and sends and believes to terminal node Number, after terminal node is judged as someone's signal, the modules such as buzzer LED are alarmed at drives terminal, send a signal to coordinator section Point;Distance of the children of infrared distance sensor detection simultaneously apart from the device, far and near according to distance changes buzzer LED light mould Audible frequency and the tone height of block, distance is closer, and sound is more rapid, plays urgent effect;Coordinator node has received After people's signal, coordinator end buzzer LED lamp alarm is driven, notifies that children enter danger zone to parent, until parent rushes to this After danger zone confirms child without danger, warning device can be turned off manually, otherwise alarm sounding always during this period.If youngster Virgin to exit danger zone again, then sensor constantly detects more new state simultaneously, is sent to terminal node, terminal node is judged as nothing After people, then buzzer LED lamp module stop alarm is driven, once but ZigBee terminal node sends someone's signal, coordinator Receive and just control corresponding buzzer LED lamp module after signal and start to alarm, either children enter danger zone still into Enter rear the case where exiting again, warning device can all alarm at coordinator, confirm that safety just can be manual until parent goes to observe conditions Close warning device at coordinator.
Below with reference to embodiment, the present invention is described in further detail.
Embodiment
In conjunction with Fig. 5, the children's safety protective device based on infrared acquisition in the present embodiment, including the detection mould being sequentially connected Block, ZigBee communication module, alarm module.ZigBee communication module includes a ZigBee coordinator node, 2 ZigBee ends End node, detecting module include 2 infrared sensors and 2 range sensors, and alarm module includes 3 buzzer LED light moulds Block;ZigBee coordinator node is connected with one of buzzer LED lamp module in 3 buzzer LED lamp modules, each ZigBee terminal node is connected with a detecting module, a buzzer LED lamp module.
In the present embodiment, pyroelectric infrared sensor uses RE200B, technical parameter are as follows: substrate thickness 0.5mm;Work Make 7-14 μm of wavelength;Mean transmissivity > 75%;(1Hz modulating frequency, 0.3-3.0Hz bandwidth, 72.5db increase output signal > 2.5V Benefit);Noise < 200mV (mVp-p) (25 DEG C);The degree of balance < 20%;Operating voltage 2.2-15V;Operating current 8.5-24 μ A;(VD =10V, Rs=47k Ω, 25 DEG C);Source voltage 0.4-1.1V (VD=10V, Rs=47k Ω, 25 DEG C);- 20 DEG C of operating temperature- +70℃;- 35 DEG C -+80 DEG C of storage temperature;139 ° × 126 ° of visual field is as shown in Figure 6;Use external interrupt mode interface.
Infrared distance sensor uses KTR-GP2D12, running parameter are as follows: power input: 9~24V;Input current: < 50mA;Measure 1~5m of distance;Operating temperature: 0 DEG C -+60 DEG C;- 40 DEG C -+70 DEG C of storage temperature.
Alarm module uses multiwafer integrated circuit (SOT packaged by plastic), this integrated circuit is welded using gold wire ball, and performance is steady It is fixed;Voltage: 4--8VDC;Maximum current: < 30MA/5VDC;Minimum acoustic pressure: > 85db/10cm;Resonance frequency 2500+--300HZ; Operating temperature: -20~70 degree;Weight: 2g.
ZigBee communication module uses CC2530 chip, 8051 processor of integrated chip, working frequency range 868/915MH And 2.4GHz, transmission range 10m-75m, transmission rate 40kbit-250Kbit, it could support up number of nodes 65535, work Maximum power dissipation is 1-3mw when making.
In the present embodiment, 2 ZigBee terminal nodes are separately mounted to window, power outlet, ZigBee coordinator node It is carried by parent.When children freely play close to window, it is mounted on the corresponding buzzing of ZigBee terminal node of window Device LED lamp module can issue alarm, and children are closer close to window, and alarm is more rapid, at the same time, the buzzing in parent end The same alarm of device LED lamp module, until parent rushes to danger zone and the corresponding buzzing of ZigBee coordinator node is turned off manually Until device LED lamp module.When children freely play close to power outlet, it is mounted on the ZigBee terminal node pair of power outlet The buzzer LED lamp module answered can issue alarm, and children are closer close to power outlet, and alarm is more rapid, at the same time, be in The same alarm of buzzer LED lamp module at parent end, until parent rushes to danger zone and ZigBee coordinator section is turned off manually Until the corresponding buzzer LED lamp module of point.
Children's safety protective device based on infrared acquisition of the invention may be implemented to carry out children close to danger zone It gives warning in advance, and notifies its guardian, auxiliary guardian nurses children's safety.The present invention is relative to other guarantors at present on the market Product is protected, it is easy to install, small in size to be convenient for carrying, it is suitable for a variety of occasions, and at low cost, it is applied widely.

Claims (8)

1. a kind of children's safety protective device based on infrared acquisition, which is characterized in that including be sequentially connected detecting module, ZigBee communication module, alarm module;The ZigBee communication module includes a ZigBee coordinator node, n ZigBee Terminal node, detecting module include n infrared sensor and n range sensor, and alarm module includes n+1 buzzer LED Lamp module;The ZigBee coordinator node and one of buzzer LED lamp module in n+1 buzzer LED lamp module It is connected, each ZigBee terminal node is connected with a detecting module, a buzzer LED lamp module;
The detecting module, for detecting whether ZigBee terminal node of the human body in ZigBee communication module, and Detection human body is sent to its corresponding ZigBee terminal section at a distance from the ZigBee terminal node, and by the signal detected Point;
The ZigBee communication module for the transmission of wireless signal, and controls buzzer LED lamp module and alarms;Wherein, The signal of received corresponding detecting module output is transmitted to ZigBee coordinator node by the ZigBee terminal node, ZigBee terminal node and ZigBee coordinator node control its corresponding buzzer LED lamp module respectively and alarm;
The alarm module, for carrying out warning reminding.
2. the children's safety protective device according to claim 1 based on infrared acquisition, which is characterized in that the ZigBee Communication module uses CC2530 chip.
3. the children's safety protective device according to claim 1 based on infrared acquisition, which is characterized in that the infrared biography Sensor is pyroelectric infrared sensor.
4. the children's safety protective device according to claim 3 based on infrared acquisition, which is characterized in that the pyroelectricity Infrared sensor uses RE200B.
5. the children's safety protective device according to claim 1 based on infrared acquisition, which is characterized in that the distance passes Sensor is infrared distance sensor.
6. the children's safety protective device according to claim 5 based on infrared acquisition, which is characterized in that the infrared survey KTR-GP2D12 is used away from sensor.
7. the children's safety protective device according to claim 1 based on infrared acquisition, which is characterized in that the ZigBee Module uses star-like or tree-like or net-shaped topological structure.
8. the children's safety protective device according to claim 1 based on infrared acquisition, which is characterized in that described each The audible frequency of buzzer in the corresponding buzzer LED lamp module of ZigBee terminal node, tone height are according to human body distance The distance of the terminal node changes, and distance is closer, and audible frequency, tone are higher;Distance is remoter, and audible frequency, tone are got over It is low.
CN201811223258.2A 2018-10-19 2018-10-19 A kind of children's safety protective device based on infrared acquisition Pending CN109410518A (en)

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
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CN107798820A (en) * 2017-09-12 2018-03-13 中山大学 It is a kind of that intelligence system that children fall down from the building is prevented based on Internet of Things
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Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202102569U (en) * 2011-06-15 2012-01-04 上海交通大学 Wireless infant-monitoring and alarming system
CN202153755U (en) * 2011-08-15 2012-02-29 南京三宝通信技术实业有限公司 Monitoring system based on wireless sensing technology and wireless communication technology
CN102426755A (en) * 2011-09-23 2012-04-25 无锡艾德里安科技有限公司 Home child protection alarm device
CN103825955A (en) * 2014-03-13 2014-05-28 宁波保税区攀峒信息科技有限公司 Networking control method based on ZigBee
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CN204390041U (en) * 2014-12-31 2015-06-10 桂林电子科技大学 A kind of blind person takes action and assists and long distance control system
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CN207924871U (en) * 2018-01-30 2018-09-28 南京林业大学 Children's safety fence assembly

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