CN107705510A - A kind of preventing child based on UWB technology is wandered away bracelet - Google Patents
A kind of preventing child based on UWB technology is wandered away bracelet Download PDFInfo
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- CN107705510A CN107705510A CN201711073217.5A CN201711073217A CN107705510A CN 107705510 A CN107705510 A CN 107705510A CN 201711073217 A CN201711073217 A CN 201711073217A CN 107705510 A CN107705510 A CN 107705510A
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- uwb
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- distance
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0266—System arrangements wherein the object is to detect the exact distance between parent and child or surveyor and item
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- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Wandered away bracelet the invention discloses a kind of preventing child based on UWB technology, including central processing unit, UWB range finder modules, data transmission module, intelligent reminding module, LCD display module, electronic clock, memory module, power supply, LCD display, TTS etc., the central processing module and power supply unidirectionally electrically connect, and power supply is used to power to central processing unit；The intelligent reminding module includes TTS and electromagnetic shaker.The UWB technology wandered away based on the preventing child of UWB technology in bracelet is low in energy consumption, anti-multipath effect is good, safe, system complexity is low, can provide the advantages that being accurately positioned precision, turns into the focus of following wireless location technology.Bracelet is wandered away first by UWB technology applied in anti-bracelet of wandering away based on the preventing child of UWB technology, independent of other meshed networks, do not limited by surrounding enviroment, do not produce any cost of use, overcome the ranging localization difficult point that conventional alignment systems are difficult under the complex environment completed.
Description
Technical field
The present invention relates to smart machine field, specifically a kind of preventing child based on UWB technology is wandered away bracelet.
Background technology
UWB（Ultra Wideband）It is a kind of no-load communication techniques, the non-sinusoidal waveform using nanosecond to picosecond level
Burst pulse transmits data.UWB can realize hundreds of Mbit/s to several Gbit/s message transmission rate in the range of 10 meters or so.
UWB has many advantages such as strong anti-interference performance, transmission rate are high, very bandwidth is wide, consumption electric energy is small, transmit power is small.UWB systems
Transmission power of uniting is very small, and communication equipment can be achieved with communicating with the transmission power less than 1mW.Low transmitting power is prolonged significantly
The long system power supply working time.Moreover, transmission power is small, the influence of its Electromagnetic Wave Radiation on Human also can very little, application surface is just
Extensively；
Children because the age it is small, it is necessary to guardian looks after in real time, the particularly children of 3-8 year, when they are taken to market by parent
Or during the public arena such as park station, looked after with greater need for parent is more careful.But many times parent has and looked after only
Situation about coming, this, which allows for inventing a kind of preventing child equipment of wandering away, turns into the active demand of parents.Occur on the market now
Some children's loss prevention devices, but these devices are mostly positioned by GPS, and GPS positioning precision is too low, it is necessary to rely on net
Network node, it can be limited by surrounding enviroment.
The content of the invention
Wandered away bracelet it is an object of the invention to provide a kind of preventing child based on UWB technology, to solve above-mentioned background skill
The problem of being proposed in art；
To achieve the above object, the present invention provides following technical scheme：
A kind of preventing child based on UWB technology is wandered away bracelet, including central processing unit, UWB range finder modules, data transmission module,
Intelligent reminding module, LCD display module, electronic clock, memory module, power supply, LCD display, TTS, electromagnetic shaker, time storage
Device, UWB monitoring sides and UWB children end, the central processing module and power supply unidirectionally electrically connect, and power supply is used for central processing unit
Power supply；The intelligent reminding module includes TTS and electromagnetic shaker, and the TTS and central processing unit are unidirectionally electrically connected, and TTS is used to connect
Receive the audio controls that central processing unit is sent；The electromagnetic shaker and central processing unit unidirectionally electrically connect, and electromagnetic shaker is receiving
Vibration reminding is carried out during the vibration signal sent to central processing unit；The LCD display module is LCD display, and the LCD shows
Show device and the two-way electrical connection of central processing unit, LCD display is used for the distance of real-time display children and parent, walks out and set in children
After fixed safe distance, LCD display shows that children walk out the time of safe distance；The memory module is time memory,
The two-way electrical connection of time memory and central processing unit, time memory be used for store children leave place of safety time and
Number；The UWB range finder modules include UWB monitoring sides and UWB children end, the UWB monitoring sides and the two-way electricity of central processing unit
Connection, UWB monitoring sides are used to receive the monitoring and controlling signal and send Monitoring Data to central processing unit that central processing unit sends；
The UWB children end and UWB monitoring sides wireless connection, UWB monitoring sides receive the wireless signal that UWB children end is sent；The place
Data transmission module is provided with reason device, data transmission module is used for the data after central processing unit is handled and is transferred to other intelligence
Can equipment；The central processing unit is single-chip microcomputer；
As the further scheme of the present invention：At work, single-chip microcomputer is first initialized, and is then timed device T0 interruptions and is arrived
Judgement is reached up to judging to interrupt with serial ports, when timer T0, which interrupts arrival, to be judged as YES, progress interrupt service routine, when timing
When device T0 interruption arrival is judged as NO, timer T0 interrupts arrival judgement and rejudged, after interrupt service routine is completed
Carry out time setting；Meanwhile range measurement is carried out by UWB range finder modules, then UWB range finder modules are sent to range data
Serial ports buffering area；When serial ports, which interrupts arrival, to be judged as YES, carry out serial ports and interrupt judgement, received when serial ports, which interrupts, to be judged as YES
The range data of serial ports buffering area；Then light-emitting diode display initializes, and light-emitting diode display carries out the display of time and distance, works as needs
When time is set, first to whether having button change to judge, when judgement is, the setting of time is carried out, when being judged as NO,
Set without the time；Judge that the working method that children leave place of safety is, first judge whether monitoring distance is more than 20 meters, when
During more than 20 meters, current time is stored, lampet enters line flicker, and electromagnetic shaker is shaken, and TTS voices send alarm sound；When
When needing to show that monitoring distance is more than 20 meters of time, to whether thering is button change to judge, when being judged as YES, LCD
Display shows that monitoring distance is more than 20 meters of time, when being judged as NO, returns to the judgement for whether having button to change；When
When monitoring distance is less than or equal to 20 meters, continue whether to judge more than 20 meters monitoring distance；
As further scheme of the invention：First by UWB monitoring sides and UWB children end calculate children and parent away from
From the then range data in monitoring side by processor reading UWB, and judge whether both distances exceed by analyze data
Safe distance, after data exceed safe distance, shock module is triggered by processor and TTS module sends prompting；LCD liquid crystals
Show that module is driven by processor, display is measured away from discrete time；Real-time time is sent to memory module and carried out by processor
Storage, when pressing inquiry button, LCD liquid crystal display screen can show nearest ten specific times for exceeding safe distance；Electronics
Clock module uses processor timer internal timing, and the time is set by four buttons；In short range（300 meters with
It is interior）Carried out using UWB range finder modules RM-100 under the intensive complex environment of short distance indoor occupant（Market, supermarket, subway
Stand）Ranging and location tracking.RM-100 is the wireless two-way ranging based on UWB, mainly applies and is coordinating the ranging of target
On, its range accuracy is low compared with laser etc., but operating distance is farther out, in the case where there is certain stop, also can normally calculate distance, essence
For degree typically 5 to 30cm, operating distance can reach 300 meters.The present invention is used to preventing the scene of children loss, in actual environment
The field range of people is at least more than 5 meters, and we just can have found missing child with naked eyes within 5 meters, so at this
Our required precisions for distance exam are just less high under scape, and RM-100 estimation precision is fully able to meet ours
Demand.Record is beyond the time of safe distance and storage is into storage chip, can check nearest 10 at any time when pressing query key
The secondary specific time beyond safe distance.After children and the separated distance of parent exceed certain limit, the hand of parent monitoring side
Ring has vibrations and sound prompting, built-in UWB range finder modules and can monitor the distance at children end and monitoring side in real time and show in real time
Show on screen, guide parent constantly close to children to reach the purpose of tracking；
Compared with prior art, the beneficial effects of the invention are as follows：The UWB skills wandered away based on the preventing child of UWB technology in bracelet
Art is low in energy consumption, anti-multipath effect is good, safe, system complexity is low, can provide the advantages that being accurately positioned precision, turns into future
The focus of wireless location technology.Bracelet is wandered away first by UWB technology applied to anti-bracelet of wandering away based on the preventing child of UWB technology
In, independent of other meshed networks, do not limited by surrounding enviroment, do not produce any cost of use, overcome traditional positioning
System is difficult to the ranging localization difficult point under the complex environment completed.
Brief description of the drawings
Fig. 1 is that a kind of preventing child based on UWB technology is wandered away the module map of bracelet；
Fig. 2 is that a kind of preventing child based on UWB technology is wandered away the principle schematic of bracelet；
Fig. 3 is that a kind of preventing child based on UWB technology is wandered away the flow chart of bracelet；
Fig. 4 is that a kind of preventing child based on UWB technology is wandered away bracelet schematic appearance.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention；
Refer to Fig. 1~4, in the embodiment of the present invention, a kind of preventing child based on UWB technology is wandered away bracelet, including central processing
Device, UWB range finder modules, data transmission module, intelligent reminding module, LCD display module, electronic clock, memory module, power supply,
LCD display, TTS, electromagnetic shaker, time memory, UWB monitoring sides and UWB children end, central processing module and the power supply list
To electrical connection, power supply is used to power to central processing unit；The intelligent reminding module includes TTS and electromagnetic shaker, and the TTS is with
Central processor unidirectionally electrically connects, and TTS is used to receive the audio controls that central processing unit is sent；The electromagnetic shaker and centre
Reason device unidirectionally electrically connects, and electromagnetic shaker carries out vibration reminding when receiving the vibration signal that central processing unit is sent；The LCD shows
It is LCD display to show module, and the two-way electrical connection of LCD display and central processing unit, LCD display is used for real-time display youngster
Virgin and parent distance, after children walk out the safe distance of setting, LCD display show children walk out safe distance when
Between；The memory module is time memory, the two-way electrical connection of time memory and central processing unit, and time memory is used
Time and the number of place of safety are left in storage children；The UWB range finder modules include UWB monitoring sides and UWB children end, described
UWB monitoring sides and the two-way electrical connection of central processing unit, UWB monitoring sides are used to receive the monitoring and controlling signal that central processing unit is sent
Monitoring Data is sent with to central processing unit；The UWB children end and UWB monitoring sides wireless connection, UWB monitoring sides receive UWB
The wireless signal that children end is sent；Data transmission module is provided with the processor, data transmission module is used for centre
Data after reason device processing are transferred to other smart machines；The central processing unit is single-chip microcomputer；
At work, single-chip microcomputer is first initialized, and is then timed device T0 interruption arrival and is judged that interrupting arrival with serial ports sentences
It is disconnected, when timer T0, which interrupts arrival, to be judged as YES, interrupt service routine is carried out, is judged as NO when timer T0 interrupts arrival
When, timer T0 interrupts arrival judgement and rejudged, and interrupt service routine carries out time setting after completing；It is meanwhile logical
Cross UWB range finder modules and carry out range measurement, then range data is sent to serial ports buffering area by UWB range finder modules；When in serial ports
When disconnected arrival is judged as YES, carries out serial ports and interrupt judgement, the distance number of serial ports buffering area is received when serial ports, which interrupts, to be judged as YES
According to；Then light-emitting diode display initializes, and light-emitting diode display carries out the display of time and distance, when needing to set the time, first to being
It is no to there is button change to be judged, when judging to be, the setting of time is carried out, when being judged as NO, is set without the time；Sentence
The working method that disconnected children leave place of safety is first to judge whether monitoring distance is more than 20 meters, when more than 20 meters, storage
Current time, lampet enter line flicker, and electromagnetic shaker is shaken, and TTS voices send alarm sound；When needing, display monitoring distance is big
When 20 meters of time, whether to having button change to judge, when being judged as YES, LCD display shows monitoring distance
Time more than 20 meters, when being judged as NO, return to the judgement for whether thering is button to change；When monitoring distance is less than or equal to
At 20 meters, continue whether to judge more than 20 meters monitoring distance；
The present invention operation principle be：The distance of children and parent are calculated by UWB monitoring sides and UWB children end first, then
Monitoring side by processor read UWB range data, and by analyze data judge both distance whether beyond safety away from
From after data exceed safe distance, triggering shock module and TTS module by processor and send prompting；LCD LCD MODULEs
Driven by processor, display is measured away from discrete time；Real-time time is sent to memory module and stored by processor, when
When pressing inquiry button, LCD liquid crystal display screen can show nearest ten specific times for exceeding safe distance；Electronic clock module
Using processor timer internal timing, is set by four buttons the time；In short range（Within 300 meters）Using
UWB range finder modules RM-100 is carried out under the intensive complex environment of short distance indoor occupant（Market, supermarket, subway station）Ranging
And location tracking.RM-100 is the wireless two-way ranging based on UWB, is mainly applied in the ranging for coordinating target, its ranging
Precision is low compared with laser etc., but operating distance is farther out, in the case where there is certain stop, also can normally calculate distance, precision is typically 5
To 30cm, operating distance can reach 300 meters.The present invention is used to preventing the scene of children loss, and people's regards in actual environment
Wild scope at least more than 5 meters, within 5 meters we with naked eyes just can find missing child, so under this scene we
The needs of required precision for distance exam is just less high, and RM-100 estimation precision is fully able to meet us.Note
Record is beyond the time of safe distance and storage is into storage chip, can check nearest 10 times at any time when pressing query key beyond peace
The specific time of full distance.After children and the separated distance of parent exceed certain limit, built-in UWB range finder modules can be real-time
Monitor the distance at children end and monitoring side and real-time display is on screen, guide parent constantly close to children to reach the mesh of tracking
's；
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, its according to
The technical scheme described in foregoing embodiments can so be modified, or which part technical characteristic is equally replaced
Change, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention
Protection domain within.
Claims (7)
- The bracelet 1. a kind of preventing child based on UWB technology is wandered away, including central processing unit, UWB range finder modules, data transfer mould Block, intelligent reminding module, LCD display module, electronic clock, memory module, power supply, LCD display, TTS, electromagnetic shaker, time Memory, UWB monitoring sides and UWB children end, it is characterised in that the central processing module and power supply unidirectionally electrically connect, power supply For being powered to central processing unit；The intelligent reminding module includes TTS and electromagnetic shaker, and the TTS and central processing unit are unidirectional Electrical connection, TTS are used to receive the audio controls that central processing unit is sent；The electromagnetic shaker and central processing unit are unidirectionally electrically connected Connect, electromagnetic shaker carries out vibration reminding when receiving the vibration signal that central processing unit is sent；The LCD display module is LCD Display, the two-way electrical connection of LCD display and central processing unit, LCD display are used for real-time display children and parent Distance, after children walk out the safe distance of setting, LCD display shows that children walk out the time of safe distance；The storage Module is time memory, the two-way electrical connection of time memory and central processing unit, and time memory is used to store children Leave time and the number of place of safety；The UWB range finder modules include UWB monitoring sides and UWB children end, the UWB monitoring sides With the two-way electrical connection of central processing unit, UWB monitoring sides are used to receiving the monitoring and controlling signal that central processing unit sends and to centers Processor sends Monitoring Data；The UWB children end and UWB monitoring sides wireless connection, UWB monitoring sides receive UWB children end hair The wireless signal gone out；Data transmission module is provided with the processor, data transmission module is used to central processing unit handle Data afterwards are transferred to other smart machines；The central processing unit is single-chip microcomputer.
- The bracelet 2. a kind of preventing child based on UWB technology according to claim 1 is wandered away, it is characterised in that at work, Single-chip microcomputer is first initialized, and is then timed device T0 interruption arrival and is judged to interrupt arrival judgement with serial ports, as timer T0 When interruption arrival is judged as YES, interrupt service routine is carried out, when timer T0, which interrupts arrival, to be judged as NO, timer T0 is interrupted Reach judgement to be rejudged, interrupt service routine carries out time setting after completing；Meanwhile entered by UWB range finder modules Row distance is measured, and then range data is sent to serial ports buffering area by UWB range finder modules；It is judged as YES when serial ports interrupts arrival When, carry out serial ports and interrupt judgement, the range data of serial ports buffering area is received when serial ports, which interrupts, to be judged as YES；Then LED is shown Device initializes, and light-emitting diode display carries out the display of time and distance, when needing to set the time, first to whether have button change into Row judges, when judging to be, carries out the setting of time, when being judged as NO, is set without the time.
- The bracelet 3. a kind of preventing child based on UWB technology according to claim 1 is wandered away, it is characterised in that judge children The working method for leaving place of safety is first to judge whether monitoring distance is more than 20 meters, when more than 20 meters, when storing current Between, lampet enters line flicker, and electromagnetic shaker is shaken, and TTS voices send alarm sound；It is more than 20 when needing display monitoring distance During the time of rice, whether to having button change to judge, when being judged as YES, LCD display shows that monitoring distance is more than two Ten meters of time, when being judged as NO, return to the judgement for whether thering is button to change；When monitoring distance is less than or equal to 20 meters When, continue whether to judge more than 20 meters monitoring distance.
- The bracelet 4. a kind of preventing child based on UWB technology according to claim 1 is wandered away, it is characterised in that first by UWB The distance of children and parent are calculated in monitoring side and UWB children end, then read UWB distance number by processor in monitoring side According to, and judge whether both distances exceed safe distance by analyze data, after data exceed safe distance, by processor Triggering shock module and TTS module send prompting.
- The bracelet 5. a kind of preventing child based on UWB technology according to claim 1 is wandered away, it is characterised in that the LCD liquid Brilliant display module is driven by processor, and display is measured away from discrete time；Real-time time is sent to memory module simultaneously by processor Stored, when pressing inquiry button, LCD liquid crystal display screen can show nearest ten specific times for exceeding safe distance.
- The bracelet 6. a kind of preventing child based on UWB technology according to claim 1 is wandered away, it is characterised in that the electronics Clock uses processor timer internal timing, and the time is set by four buttons；UWB ranging moulds are used in short range Block RM-100 is carried out under the intensive complex environment of short distance indoor occupant（Market, supermarket, subway station）Ranging and positioning chase after Track.
- The bracelet 7. a kind of preventing child based on UWB technology according to claim 1 is wandered away, it is characterised in that as children and After the separated distance of parent exceedes certain limit, built-in UWB range finder modules can monitor the distance of children end and monitoring side in real time And real-time display guides parent constantly close to children to reach the purpose of tracking on screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711073217.5A CN107705510A (en) | 2017-11-04 | 2017-11-04 | A kind of preventing child based on UWB technology is wandered away bracelet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711073217.5A CN107705510A (en) | 2017-11-04 | 2017-11-04 | A kind of preventing child based on UWB technology is wandered away bracelet |
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| CN107705510A true CN107705510A (en) | 2018-02-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108606432A (en) * | 2018-05-09 | 2018-10-02 | 平湖市义合箱包有限公司 | a kind of luggage case |
| CN109327802A (en) * | 2018-11-28 | 2019-02-12 | 中国地质大学（武汉） | A kind of market children based on UWB location technology go astray from the group alarm method and device |
| CN109872503A (en) * | 2019-02-19 | 2019-06-11 | 广东省海洋工程装备技术研究所 | A kind of preventing child is wandered away wearable device and its control method |
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Application publication date: 20180216 |
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