CN106211075A - The method and system that children under guardianship after wandering away are positioned - Google Patents
The method and system that children under guardianship after wandering away are positioned Download PDFInfo
- Publication number
- CN106211075A CN106211075A CN201610619677.2A CN201610619677A CN106211075A CN 106211075 A CN106211075 A CN 106211075A CN 201610619677 A CN201610619677 A CN 201610619677A CN 106211075 A CN106211075 A CN 106211075A
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- children under
- under guardianship
- guardian
- gps module
- server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Mobile Radio Communication Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The present invention provides a kind of method positioning the children under guardianship after wandering away, and comprises the following steps: server wanders away instruction to obtain wander away position and the GPS module sequence number of caregiver information, the time of wandering away of children under guardianship, children under guardianship according to children under guardianship；In electronic chart, time of wandering away according to children under guardianship and the position of wandering away of children under guardianship, to set the time point being incremented by and hunting zone corresponding thereto, and in hunting zone, search for the current location of the GPS module corresponding with children under guardianship；After navigating to the current location of GPS module, its positional information is sent to guardian.Implement the system of said method, including: GPS module, guardian's terminal and server.The present invention can enable guardian find missing children under guardianship as early as possible, to solve guardian when flurried, it is impossible to the shortcoming finding children under guardianship as early as possible.
Description
Technical field
The present invention relates to a kind of localization method, a kind of method that children under guardianship after wandering away are positioned and be
System.
Background technology
At present, after guardian finds that children under guardianship wander away, guardian would be at flurried state, it is impossible to makes accurately
Make and carry out children under guardianship finding route and searching scope, therefore, tend not to find missing children under guardianship as early as possible.
Summary of the invention
For weak point present in the problems referred to above, it is missing that the present invention provides one to enable guardian to find as early as possible
Children under guardianship, to solve guardian when flurried, it is impossible to find as early as possible children under guardianship shortcoming to the quilt after wandering away
Guardian carries out the method and system positioned.
For achieving the above object, the present invention provides a kind of method positioning the children under guardianship after wandering away, including with
Lower step:
Step 1, server according to children under guardianship wander away instruction with obtain caregiver information, the time of wandering away of children under guardianship,
Wander away position and the GPS module sequence number of children under guardianship；
Step 2, according to time of wandering away of children under guardianship and the position of wandering away of children under guardianship, with set be incremented by time
Between point and hunting zone corresponding thereto, and in hunting zone, search for the GPS module corresponding with children under guardianship ought
Front position；
Step 3, after navigating to the current location of GPS module, by its positional information send to guardian.
The above-mentioned method that the children under guardianship after wandering away are positioned, wherein, in step 1, including following sub-step:
Step 11, guardian are after finding that children under guardianship wander away, by the guardian's APP software in guardian's terminal to fill out
Write time of wandering away and the dressing information of caregiver information, the position of wandering away of children under guardianship, children under guardianship, and generate children under guardianship
Wander away and send to server after instructing；
Children under guardianship wander away after instruction resolves by step 12, server, to obtain caregiver information, children under guardianship
Wander away time of wandering away and the dressing information of position, children under guardianship；
Step 13, according to caregiver information to inquire the storage chains using it as Table Header information in guardian data base
Table, and extract, in storage chained list, the GPS module sequence number stored.
The above-mentioned method that the children under guardianship after wandering away are positioned, wherein, in step 2, including following sub-step:
Step 21, the server time of wandering away according to children under guardianship and the position of wandering away of children under guardianship, in electronic chart
Mark off the first hunting zone centered by the position of wandering away of children under guardianship；
Step 22, scope according to time of wandering away of children under guardianship with the first hunting zone, the time being incremented by with setting
Point and hunting zone corresponding thereto, and search for corresponding with children under guardianship in the hunting zone currently generated
The current location of GPS module.
The above-mentioned method positioning the children under guardianship after wandering away, wherein, in step 22, currently generated searches
Rope scope is by the set of the hunting zone before a upper progressive time point Yu the hunting zone of current progressive time point.
The above-mentioned method positioning the children under guardianship after wandering away, wherein, in step 2, also includes step 23, clothes
Business device is after setting the complete scope scanning for GPS module, by guardian's APP software to find current search scope
In all guardian's terminals being provided with guardian's APP software, and to guardian's terminal send find missing children under guardianship refer to
Order.
The above-mentioned method positioning the children under guardianship after wandering away, wherein, in step 3, including following two feelings
Condition:
Situation one includes following sub-step:
After step 31, server search the current static position of GPS module in current search scope, its position is believed
Breath sends to guardian；
Step 32, guardian, according to the current static position of received GPS module, after finding children under guardianship, incite somebody to action
Instruction is found to send to server by the guardian's APP software in guardian's terminal to fill in children under guardianship；
Step 33, server are receiving after children under guardianship find instruction, terminate the location to current GPS module, and to
In current search scope, guardian's terminal of all guardian's of being provided with APP softwares sends children under guardianship and finds instruction；
Situation two includes following sub-step:
After step 31`, server search the dynamic mobile position of GPS module in current search scope, it is dynamic
Mobile location information sends to guardian；
Step 32`, guardian, according to the dynamic mobile position of received GPS module, after finding children under guardianship, incite somebody to action
Instruction is found to send to server by the guardian's APP software in guardian's terminal to fill in children under guardianship；
Step 33`, server are receiving after children under guardianship find instruction, terminate the location to current GPS module, and to
In current search scope, guardian's terminal of all guardian's of being provided with APP softwares sends children under guardianship and finds instruction.
The above-mentioned method positioning the children under guardianship after wandering away, wherein, in step 31, server is according to GPS
Module static position in current search scope is cut to generate the positional information of textual or the map with position mark point
After figure, send it in the guardian's APP software installed in tutorial guardian's terminal or guardian's terminal.
The above-mentioned method positioning the children under guardianship after wandering away, wherein, in step 31`, server is according to GPS
Module dynamic position in current search scope, to synchronize to send out by the real-time electronic map moving mark point with GPS module
Deliver in guardian's APP software that guardian is used.
The present invention also provides for a kind of system positioning the children under guardianship after wandering away, including: GPS module, guardian
Terminal and server；
Described GPS module is arranged on children under guardianship with the form of ornament；
Described guardian's terminal is provided with guardian's APP software, sends to server after discovery children under guardianship wander away
Children under guardianship wander away instruction, and receive the children under guardianship's positional information sent by described server；
Described server according to children under guardianship wander away instruction with in electronic chart set hunting zone in described GPS
Module scans for, and after navigating to the current location of GPS module, sends its positional information to guardian.
Above-mentioned system, wherein, includes hunting zone generation module, time point setting module at described server, searches
Rope expanded range range set module, lookup module, locating module and positional information sending module；
Wander away position and the children under guardianship of the described hunting zone generation module children under guardianship for sending according to guardian
Wander away the time, to generate the first hunting zone centered by the position of wandering away of children under guardianship in electronic chart；
Described time point setting module is wandered away the time for the children under guardianship's according to guardian's transmission, existing to be set in
The progressive time point of hunting zone is expanded on the basis of hunting zone；
Described hunting zone expanded scope setting module is for setting to expand on the basis of existing hunting zone
The distance parameter of hunting zone；
Described lookup module for set complete GPS module current search scope after, by guardian's APP software with
Find all guardian's terminals being provided with guardian's APP software in current search scope, and seek to the transmission of guardian's terminal
Missing children under guardianship are looked for instruct；
Described locating module is used in current set hunting zone to search for the current location of GPS module；
Described positional information sending module for search in current search scope GPS module dynamic mobile position or
After static position, dynamic mobile positional information or static position information are sent to guardian.
Compared with prior art, the invention have the advantages that
Based on the time of wandering away of the children under guardianship that the present invention is sent by guardian and the position of wandering away of children under guardianship, root
According to incremental time point with the continuous current location expanding the search GPS module corresponding with children under guardianship, and will be navigated to
The current location of children under guardianship reports to guardian, enables guardian to find missing children under guardianship as early as possible, to solve guardian
When flurried, it is impossible to the shortcoming finding children under guardianship as early as possible；
Further, since other guardians missing children under guardianship's information can being sent in current search scope, therefore,
The search number to missing children under guardianship can be expanded such that it is able to look for as early as possible to missing children under guardianship.
Accompanying drawing explanation
Fig. 1 is the flow chart of method part in the present invention.
Detailed description of the invention
As it is shown in figure 1, the present invention provides a kind of method positioning the children under guardianship after wandering away, including following step
Rapid:
Step 1, server according to children under guardianship wander away instruction with obtain caregiver information, the time of wandering away of children under guardianship,
Wander away position and the GPS module sequence number of children under guardianship.
Concrete, in step 1, including following sub-step:
Step 11, guardian are after finding that children under guardianship wander away, by the guardian's APP software in guardian's terminal to fill out
Write time of wandering away and the dressing information of caregiver information, the position of wandering away of children under guardianship, children under guardianship, and generate children under guardianship
Wander away and send to server after instructing；
Children under guardianship wander away after instruction resolves by step 12, server, to obtain caregiver information, children under guardianship
Wander away time of wandering away and the dressing information of position, children under guardianship；
Step 13, according to caregiver information to inquire the storage chains using it as Table Header information in guardian data base
Table, and extract, in storage chained list, the GPS module sequence number stored.
Step 2, in electronic chart, according to time of wandering away and the position of wandering away of children under guardianship of children under guardianship, to set
The fixed time point being incremented by and hunting zone corresponding thereto, and search for corresponding with children under guardianship in hunting zone
The current location of GPS module.
Concrete, in step 2, including following sub-step:
Step 21, the server time of wandering away according to children under guardianship and the position of wandering away of children under guardianship, in electronic chart
Mark off the first hunting zone centered by the position of wandering away of children under guardianship.
Step 22, scope according to time of wandering away of children under guardianship with the first hunting zone, the time being incremented by with setting
Point and hunting zone corresponding thereto, and search for corresponding with children under guardianship in the hunting zone currently generated
The current location of GPS module.
Wherein, the hunting zone currently generated is by the hunting zone before a upper progressive time point and current progressive time
The set of the hunting zone of point.
Step 23, server are setting after the complete scope scanning for GPS module, by guardian's APP software with
Find all guardian's terminals being provided with guardian's APP software in current search scope, and seek to the transmission of guardian's terminal
Missing children under guardianship are looked for instruct.
Step 3, after navigating to the current location of GPS module, by its positional information send to guardian.
Concrete, in step 3, including following two situation:
Situation one includes following sub-step:
After step 31, server search the current static position of GPS module in current search scope, its position is believed
Breath sends to guardian.
Wherein, server according to GPS module static position in current search scope to generate the position letter of textual
After breath or the map sectional drawing with position mark point, send it to institute in tutorial guardian's terminal or guardian's terminal
In the guardian's APP software installed.
Step 32, guardian, according to the current static position of received GPS module, after finding children under guardianship, incite somebody to action
Instruction is found to send to server by the guardian's APP software in guardian's terminal to fill in children under guardianship.
Step 33, server are receiving after children under guardianship find instruction, terminate the location to current GPS module, and to
In current search scope, guardian's terminal of all guardian's of being provided with APP softwares sends children under guardianship and finds instruction.
Situation two includes following sub-step:
After step 31`, server search the dynamic mobile position of GPS module in current search scope, it is dynamic
Mobile location information sends to guardian.
Wherein, server is according to GPS module dynamic position in current search scope, will move with GPS module
In guardian's APP software that the real-time electronic map synchronized transmission of mark point is used to guardian.
Step 32`, guardian, according to the dynamic mobile position of received GPS module, after finding children under guardianship, incite somebody to action
Instruction is found to send to server by the guardian's APP software in guardian's terminal to fill in children under guardianship；
Step 33`, server are receiving after children under guardianship find instruction, terminate the location to current GPS module, and to
In current search scope, guardian's terminal of all guardian's of being provided with APP softwares sends children under guardianship and finds instruction.
In step 1 to step 3, GPS module is arranged on children under guardianship with the form of ornament.
Wherein, this ornament is for having double-deck label.
Outer surface at the label first floor is printed with decorative picture.
Top surface at label bottom is printed with the image in 2 D code for downloading guardian's APP software after barcode scanning,
Lower surface at label bottom is provided with GPS module.
Wherein, the code value information of image in 2 D code has with the GPS module sequence number of GPS module and associates binding relationship.
It addition, before step 1 is implemented, the printed image in 2 D code of top surface of label bottom is distinguished by guardian
After, children under guardianship's Quick Response Code of idle bit type is distinguished, and sends to server and guarded after having filled in children under guardianship's information
People's information upload request, server according to children under guardianship's information upload request to set up children under guardianship's information chained list after, activate two
Dimension code image and GPS module corresponding thereto.
The present invention also provides for a kind of system positioning the children under guardianship after wandering away, including: GPS module, guardian
Terminal and server.
GPS module is arranged on children under guardianship with the form of ornament.
Wherein, this ornament is for having double-deck label.
Outer surface at the label first floor is printed with decorative picture.Top surface at label bottom is printed with for sweeping
Downloading the image in 2 D code of guardian's APP software after Ma, the lower surface at label bottom is provided with GPS module.
Wherein, the code value information of image in 2 D code has with the GPS module sequence number of GPS module and associates binding relationship.
Guardian's terminal is provided with guardian's APP software, sends to server after discovery children under guardianship wander away and supervised
Protect people to wander away instruction, and receive the children under guardianship's positional information sent by server.
Server wanders away instruction in the hunting zone of setting to carry out GPS module in electronic chart according to children under guardianship
Search, and after navigating to the current location of GPS module, its positional information is sent to guardian.
Include that hunting zone generation module, time point setting module, hunting zone expanded scope set mould in the server
Block, lookup module, locating module and positional information sending module.
The position of wandering away of the hunting zone generation module children under guardianship for sending according to guardian, with in electronic chart
Generate the first hunting zone centered by the position of wandering away of children under guardianship.
Time point setting module is wandered away the time instructed for the children under guardianship sent according to guardian, existing to be set in
The time point of hunting zone is expanded on the basis of hunting zone.
Hunting zone expanded scope setting module is used on the basis of existing hunting zone hunting zone to be expanded
Distance parameter be set.
Search module and be used for after the current search scope setting complete GPS module, by guardian's APP software to search
All guardian's terminals being provided with guardian's APP software in current search scope, and walk to the transmission searching of guardian's terminal
The children under guardianship's instruction lost.
Locating module is used in current set hunting zone to search for the current location of GPS module.
Wherein, the current location of GPS module is static position or dynamic mobile position.
Positional information sending module is for searching dynamic mobile position or the static state of GPS module in current search scope
Behind position, dynamic mobile positional information or static position information are sent to guardian.
Wherein, server is according to GPS module dynamic position in current search scope, to send mould by positional information
Guardian's APP software that the real-time electronic map synchronized transmission moving mark point with GPS module is used by block to guardian
In.
Wherein, server according to GPS module static position in current search scope to generate the position letter of textual
After breath or the map sectional drawing with position mark point, to send it to tutorial monitoring by positional information sending module
In the guardian's APP software installed in people's terminal or guardian's terminal.
Guardian is according to the dynamic mobile position of received GPS module, after finding children under guardianship, and will be by monitoring
Guardian's APP software in people's terminal finds instruction to send to server to fill in children under guardianship.Server is supervised receiving
Protect after people finds instruction, terminate the location to current GPS module, and all in current search scope guardian APP is installed
Guardian's terminal of software sends children under guardianship and finds instruction.
The foregoing is only presently preferred embodiments of the present invention, be merely illustrative for invention, and nonrestrictive.
Those skilled in the art understands, it can be carried out many changes, revise in the spirit and scope that invention claim is limited,
Even equivalence, but fall within protection scope of the present invention.
Claims (10)
1. the method positioned the children under guardianship after wandering away, comprises the following steps:
Step 1, server wander away instruction to obtain caregiver information, the time of wandering away of children under guardianship, to be supervised according to children under guardianship
Protect wander away position and the GPS module sequence number of people；
Step 2, according to time of wandering away of children under guardianship and the position of wandering away of children under guardianship, the time point that is incremented by with setting,
And hunting zone corresponding thereto, and in hunting zone, search for the present bit of the GPS module corresponding with children under guardianship
Put；
Step 3, after navigating to the current location of GPS module, by its positional information send to guardian.
The method that children under guardianship after wandering away are positioned the most according to claim 1, it is characterised in that in step 1
In, including following sub-step:
Step 11, guardian are after finding that children under guardianship wander away, by the guardian's APP software in guardian's terminal to fill in prison
Protect time of wandering away and the dressing information of people's information, the position of wandering away of children under guardianship, children under guardianship, and wander away generating children under guardianship
Send to server after instruction；
Children under guardianship are wandered away after instruction resolves by step 12, server, to obtain caregiver information, the wandering away of children under guardianship
Position, time of wandering away and the dressing information of children under guardianship；
Step 13, according to caregiver information to inquire the storage chained list using it as Table Header information in guardian data base,
And extract, in storage chained list, the GPS module sequence number stored.
The method that children under guardianship after wandering away are positioned the most according to claim 1, it is characterised in that in step 2
In, including following sub-step:
Step 21, the server time of wandering away according to children under guardianship and the position of wandering away of children under guardianship, divide in electronic chart
Go out the first hunting zone centered by the position of wandering away of children under guardianship；
Step 22, scope according to time of wandering away of children under guardianship with the first hunting zone, the time point being incremented by with setting, with
And hunting zone corresponding thereto, and in the hunting zone currently generated, search for the GPS mould corresponding with children under guardianship
The current location of block.
The method that children under guardianship after wandering away are positioned the most according to claim 3, it is characterised in that in step 22
In, the hunting zone currently generated is by the search model of the hunting zone before a upper progressive time point Yu current progressive time point
The set enclosed.
The method that children under guardianship after wandering away are positioned the most according to claim 4, it is characterised in that in step 2
In, also include that step 23, server are setting after the complete scope scanning for GPS module, by guardian's APP software with
Find all guardian's terminals being provided with guardian's APP software in current search scope, and seek to the transmission of guardian's terminal
Missing children under guardianship are looked for instruct.
The method that children under guardianship after wandering away are positioned the most according to claim 1, it is characterised in that in step 3
In, including following two situation:
Situation one includes following sub-step:
After step 31, server search the current static position of GPS module in current search scope, its positional information is sent out
Deliver to guardian；
Step 32, guardian, according to the current static position of received GPS module, after finding children under guardianship, will pass through
Guardian's APP software in guardian's terminal finds instruction to send to server to fill in children under guardianship；
Step 33, server are receiving after children under guardianship find instruction, terminate the location to current GPS module, and to currently
In hunting zone, guardian's terminal of all guardian's of being provided with APP softwares sends children under guardianship and finds instruction；
Situation two includes following sub-step:
After step 31`, server search the dynamic mobile position of GPS module in current search scope, by its dynamic mobile
Positional information sends to guardian；
Step 32`, guardian, according to the dynamic mobile position of received GPS module, after finding children under guardianship, will pass through
Guardian's APP software in guardian's terminal finds instruction to send to server to fill in children under guardianship；
Step 33`, server are receiving after children under guardianship find instruction, terminate the location to current GPS module, and to currently
In hunting zone, guardian's terminal of all guardian's of being provided with APP softwares sends children under guardianship and finds instruction.
The method that children under guardianship after wandering away are positioned the most according to claim 6, it is characterised in that in step 31
In, server according to GPS module static position in current search scope to generate the positional information of textual or with position
After putting the map sectional drawing of mark point, send it to the monitoring installed in tutorial guardian's terminal or guardian's terminal
In people's APP software.
The method that children under guardianship after wandering away are positioned the most according to claim 6, it is characterised in that in step 31
In `, server is according to GPS module dynamic position in current search scope, with the reality will move mark point with GPS module
Time guardian's APP software of being used to guardian of electronic chart synchronized transmission in.
9. implement the system to the method that the children under guardianship after wandering away position described in claim 1, its feature
It is, including: GPS module, guardian's terminal and server；
Described GPS module is arranged on children under guardianship with the form of ornament；
Described guardian's terminal is provided with guardian's APP software, sends to server after discovery children under guardianship wander away and supervised
Protect people to wander away instruction, and receive the children under guardianship's positional information sent by described server；
Described server according to children under guardianship wander away instruction with in electronic chart set hunting zone in described GPS module
Scan for, and after navigating to the current location of GPS module, its positional information is sent to guardian.
System the most according to claim 9, it is characterised in that described server include hunting zone generation module,
Time point setting module, hunting zone expanded scope setting module, lookup module, locating module and positional information sending module；
Described hunting zone generation module is walked for wander away position and the children under guardianship's of children under guardianship that send according to guardian
Between missing the season, to generate the first hunting zone centered by the position of wandering away of children under guardianship in electronic chart；
Described time point setting module is wandered away the time for the children under guardianship's according to guardian's transmission, to be set in existing search
The progressive time point of hunting zone is expanded on the basis of scope；
Described hunting zone expanded scope setting module is for setting search to be expanded on the basis of existing hunting zone
The distance parameter of scope；
Described lookup module is for after the current search scope setting complete GPS module, by guardian's APP software to search
All guardian's terminals being provided with guardian's APP software in current search scope, and walk to the transmission searching of guardian's terminal
The children under guardianship's instruction lost；
Described locating module is used in current set hunting zone to search for the current location of GPS module；
Described positional information sending module is for searching dynamic mobile position or the static state of GPS module in current search scope
Behind position, dynamic mobile positional information or static position information are sent to guardian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619677.2A CN106211075A (en) | 2016-08-02 | 2016-08-02 | The method and system that children under guardianship after wandering away are positioned |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619677.2A CN106211075A (en) | 2016-08-02 | 2016-08-02 | The method and system that children under guardianship after wandering away are positioned |
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| Publication Number | Publication Date |
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| CN106211075A true CN106211075A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610619677.2A Pending CN106211075A (en) | 2016-08-02 | 2016-08-02 | The method and system that children under guardianship after wandering away are positioned |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109344290A (en) * | 2018-11-19 | 2019-02-15 | 福建工程学院 | A method of lost children is found based on block chain technology |
| CN110491128A (en) * | 2019-09-23 | 2019-11-22 | 广西交通职业技术学院 | A kind of wisdom traffic system based on big data |
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| CN105610948A (en) * | 2015-12-29 | 2016-05-25 | 广东欧珀移动通信有限公司 | Method and device capable of assisting to search people |
| CN105721610A (en) * | 2016-04-15 | 2016-06-29 | 立德高科(北京)数码科技有限责任公司 | Method and system for seeking person under guardianship based on two-dimension code |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060095348A1 (en) * | 2004-10-29 | 2006-05-04 | Skyhook Wireless, Inc. | Server for updating location beacon database |
| CN103581825A (en) * | 2013-07-16 | 2014-02-12 | 许世杰 | Target search assisting system and search assisting method thereof |
| CN105610948A (en) * | 2015-12-29 | 2016-05-25 | 广东欧珀移动通信有限公司 | Method and device capable of assisting to search people |
| CN105721610A (en) * | 2016-04-15 | 2016-06-29 | 立德高科(北京)数码科技有限责任公司 | Method and system for seeking person under guardianship based on two-dimension code |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109344290A (en) * | 2018-11-19 | 2019-02-15 | 福建工程学院 | A method of lost children is found based on block chain technology |
| CN110491128A (en) * | 2019-09-23 | 2019-11-22 | 广西交通职业技术学院 | A kind of wisdom traffic system based on big data |
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