CN104616458A - Losing prevention method and system of article - Google Patents
Losing prevention method and system of article Download PDFInfo
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- CN104616458A CN104616458A CN201510053369.3A CN201510053369A CN104616458A CN 104616458 A CN104616458 A CN 104616458A CN 201510053369 A CN201510053369 A CN 201510053369A CN 104616458 A CN104616458 A CN 104616458A
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- accessory
- distance
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- losing
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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
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
-
- 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
- G08B21/0233—System arrangements with pre-alarms, e.g. when a first distance is exceeded
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a losing prevention method and a losing prevention system of an article. The losing prevention method of the article includes that a user places accessories after being connected together on a target article so as to check the distance between the target article and the user, and the user can amend numerical values of a safe distance according to needs whenever necessary, and a device can send out a signal to remind a user when the distance between the article and the user exceeds the preset safe distance. Accordingly, the losing prevention method and the losing prevention system of the article can guarantee that the user can know safe status of the article in real time, and simultaneously can timely inform the user when the distance between the article and the user exceeds the preset safe distance. Furthermore, when the article is stolen, the article can be traced and sought through position signals sent by the accessories, and investigation progress of policemen is greatly accelerated. The losing prevention method and the losing prevention system of the article can be widely used in terminal devices.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of article losing-proof method and system.
Background technology
In daily work and life, people more and more go on business or travel, and go on a journey except the thing carried with, and also need to carry a large amount of luggage or property.Often due to individual's carelessness or other reasons, lose property or forget and take away property, cause very large loss.Property loss mainly contains two kinds of situations, and one forgets, and user is with too many luggage, and stroke is nervous, easily causes carelessness, forgets properties such as taking away luggage.Another kind of situation is stolen, by bus or user's rest time, the properties such as luggage may be spirited away by thief.Above-mentioned situation result in luggage stolen or lose, for people trip bring a lot of trouble, cause loss.
Summary of the invention
In order to solve the problems of the technologies described above, the object of this invention is to provide a kind of energy monitoring articles position, and a kind of article losing-proof method and system that help is given for change.
The technical solution adopted in the present invention is:
A kind of article losing-proof method, comprises monitoring step and gives step for change,
Described monitoring step comprises:
A1, equipment itself sets up wireless connections with the accessory on target object;
Whether the distance between A2, monitoring equipment itself and accessory exceedes default safe distance, if so, then performs steps A 3; Otherwise, then return and re-execute steps A 2;
A3, startup prompting function;
Described step of giving for change comprises:
B1, according to the environmental pattern selected and the position signalling of accessory, the distance between computing equipment itself and accessory, and with the direction that pointer form indicates accessory to be positioned at;
B2, according to calculate and distance between accessory, send the prompt tone of respective frequencies.
As described a kind of article losing-proof further improvements in methods, described prompting function its be specially: opertaing device itself carries out jingle bell and vibration.
As described a kind of article losing-proof further improvements in methods, described step B1 comprises:
B11, control fitting send position signalling;
B12, receiving position signal, the distance between the method for calculating and locating computing equipment itself corresponding according to the environmental pattern selected and accessory, and with the direction that pointer form instruction accessory is positioned at.
As described a kind of article losing-proof further improvements in methods, described environmental pattern comprises outdoor pattern and indoor mode.
As described a kind of article losing-proof further improvements in methods, method for calculating and locating corresponding to described outdoor pattern is the calculating carrying out Distance geometry direction according to position signalling and both gps coordinates of equipment itself.
As described a kind of article losing-proof further improvements in methods, the method for calculating and locating that described indoor mode is corresponding adopts RSSI location algorithm.
Another technical scheme that the present invention adopts is:
A kind of article losing-proof system, comprises monitoring modular and recovery module,
Described monitoring modular comprises:
Connection establishment unit, the accessory on equipment itself with target object sets up wireless connections;
Whether Real-Time Monitoring unit, exceed default safe distance for the distance between monitoring equipment itself and accessory, if so, then perform reminding unit; Otherwise, then return and re-execute Real-Time Monitoring unit;
Reminding unit, for starting prompting function;
Described recovery module comprises:
Computing unit, for the position signalling according to the environmental pattern selected and accessory, the distance between computing equipment itself and accessory, and with the direction that pointer form instruction accessory is positioned at;
Tip element, for according to calculate and distance between accessory, send the prompt tone of respective frequencies.
As the further improvement of described a kind of article losing-proof system, described prompting function its be specially: opertaing device itself carries out jingle bell and vibration.
As the further improvement of described a kind of article losing-proof system, described computing unit comprises:
Signal transmitting unit, sends position signalling for control fitting;
Signal analysis unit, for receiving position signal, the distance between the method for calculating and locating computing equipment itself corresponding according to the environmental pattern selected and accessory, and with the direction that pointer form instruction accessory is positioned at.
The invention has the beneficial effects as follows:
A kind of article losing-proof method and system of the present invention are positioned on target object by the accessory after connecting, get final product the distance of real time inspection article apart from oneself, and can revise at any time as required safe distance numerical value, article exceed predetermined safe distance time, equipment can send signal reminding user.Can ensure that user understands the safety case of article in real time like this, can be notified in time under article distance exceedes setting safe distance situation again simultaneously.Further, when article are stolen, the position signalling sent by accessory carries out backtrack search to article, greatly accelerates the investigation progress of police.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
Fig. 1 is the flow chart of steps of a kind of article losing-proof method of the present invention monitoring step;
Fig. 2 is the flow chart of steps that a kind of article losing-proof method of the present invention gives step for change;
Fig. 3 is the flow chart of steps of a kind of article losing-proof method step of the present invention B1;
Fig. 4 is the block diagram of a kind of article losing-proof system monitoring of the present invention module;
Fig. 5 is the block diagram of a kind of article losing-proof method of the present invention recovery module.
Embodiment
With reference to figure 1 and Fig. 2, a kind of article losing-proof method of the present invention, comprises monitoring step and gives step for change,
Described monitoring step comprises:
A1, equipment itself sets up wireless connections with the accessory on target object;
Whether the distance between A2, monitoring equipment itself and accessory exceedes default safe distance, if so, then performs steps A 3; Otherwise, then return and re-execute steps A 2;
A3, startup prompting function;
Described step of giving for change comprises:
B1, according to the environmental pattern selected and the position signalling of accessory, the distance between computing equipment itself and accessory, and with the direction that pointer form indicates accessory to be positioned at;
B2, according to calculate and distance between accessory, send the prompt tone of respective frequencies.
Wherein, can be clearly directly perceived with the direction that is positioned at of pointer form instruction accessory, greatly user friendlyly to search.
As described a kind of article losing-proof further improvements in methods, described prompting function its be specially: opertaing device itself carries out jingle bell and vibration.
With reference to figure 3, as described a kind of article losing-proof further improvements in methods, described step B1 comprises:
B11, control fitting send position signalling;
B12, receiving position signal, the distance between the method for calculating and locating computing equipment itself corresponding according to the environmental pattern selected and accessory, and with the direction that pointer form instruction accessory is positioned at.
As described a kind of article losing-proof further improvements in methods, described environmental pattern comprises outdoor pattern and indoor mode.
As described a kind of article losing-proof further improvements in methods, method for calculating and locating corresponding to described outdoor pattern is the calculating carrying out Distance geometry direction according to position signalling and both gps coordinates of equipment itself.
As described a kind of article losing-proof further improvements in methods, the method for calculating and locating that described indoor mode is corresponding adopts RSSI location algorithm.
With reference to figure 4 and Fig. 5, a kind of article losing-proof system of the present invention, comprises monitoring modular and recovery module,
Described monitoring modular comprises:
Connection establishment unit, the accessory on equipment itself with target object sets up wireless connections;
Whether Real-Time Monitoring unit, exceed default safe distance for the distance between monitoring equipment itself and accessory, if so, then perform reminding unit; Otherwise, then return and re-execute Real-Time Monitoring unit;
Reminding unit, for starting prompting function;
Described recovery module comprises:
Computing unit, for the position signalling according to the environmental pattern selected and accessory, the distance between computing equipment itself and accessory, and with the direction that pointer form instruction accessory is positioned at;
Tip element, for according to calculate and distance between accessory, send the prompt tone of respective frequencies.
As the further improvement of described a kind of article losing-proof system, described prompting function its be specially: opertaing device itself carries out jingle bell and vibration.
As the further improvement of described a kind of article losing-proof system, described computing unit comprises:
Signal transmitting unit, sends position signalling for control fitting;
Signal analysis unit, for receiving position signal, the distance between the method for calculating and locating computing equipment itself corresponding according to the environmental pattern selected and accessory, and with the direction that pointer form instruction accessory is positioned at.
Specific embodiments of the invention are as follows:
Concrete steps when monitoring at ordinary times comprise:
S11, equipment itself sets up wireless connections with the accessory on target object;
Whether the distance between S12, monitoring equipment itself and accessory exceedes default safe distance, if so, then performs step S13; Otherwise, then return and re-execute step S12;
S13, opertaing device itself carry out jingle bell and vibration.
When needs startup is given for change, its concrete steps comprise:
S21, control fitting send position signalling;
S22, receiving position signal, and according to the outdoor pattern selected or the distance between method for calculating and locating computing equipment corresponding to indoor mode itself and accessory, and with the direction that pointer form indicates accessory to be positioned at;
S23, according to calculate and distance between accessory, send the prompt tone of respective frequencies.Wherein, the frequency of distance corresponding prompt tone far away is lower, and when distance objective accessory is more and more nearer, equipment itself can send the prompt tone of more and more high frequency, represents more and more near distance objective.
The GPS that in the present invention, outdoor pattern adopts is current most widely used general and successful location technology, but because microwave is easily by absorptions such as the dense woods, buildings, metal overcovers, therefore GPS is only suitable for using out of doors.When being in indoor scenarios, because channel circumstance is complicated, microwave signature attenuation is severe, measuring error is large, GPS is also inapplicable.The RSSI detection technique mechanism that indoor mode of the present invention adopts is simple, and hardware cost is low, realizes simple, on average obtains signal strength values more accurately by repetitive measurement, effectively can reduce multipath and capture-effect impact.
Wherein, the range measurement principle of RSSI location algorithm is as follows:
The theoretical model generally adopted in transmission of wireless signals is sequential model
In formula, the signal intensity that when p (d) represents that range transmitter is d, receiving end receives, i.e. RSSI value; The signal power that when p (d0) represents that range transmitter is d0, receiving end receives; D0 is reference distance; N is path loss index, normally obtained by actual measurement, barrier is more, n value is larger, thus the average energy received decline speed can become more and more faster along with the increase of distance: X be one in units of dBm, mean value is the Gaussian random variable of 0, reflects when distance one timing, the change of the energy received.
The sequential model of simplification is adopted in the embodiment of the present invention:
For ease of expressing and calculating, usually getting d0 is 1 m.So can obtain:
[p(d)]dBm=A-10n lg(d) (3)
The form of [p (d)] dBm RSSI that write as is obtained:
RSSI=A-10nlg(d) (4)
Wherein, A is the wireless receiving and dispatching node wireless signal strength RSSI value that receiving node receives when 1 m.Formula (4) gives the funtcional relationship of RSSI and d, so the RSSI value that known receiving end receives just can calculate the distance between it and transmitting terminal.A and n is empirical value, and closely related with the environment of radio signal propagation with the concrete hardware node used, therefore under different actual environments, A with n parameter is different, and its range finding model is different.
Node locating adopts maximum likelihood estimation algorithm.The coordinate of a known n base-station node is respectively (x1, y1), (x2, y2) ..., (xn, yn), accessory nodes of locations coordinate is (x, y), and algorithm concrete steps are as follows:
(1) base-station node periodically sends the packet comprising self ID and own location information to accessory nodes of locations.
(2) accessory nodes of locations is after receiving the packet that same ID base-station node sends, therefrom extract the signal strength values RSSI receiving these frame data, when receiving after packet that certain ID base-station node sends exceedes certain threshold value, these 100 RSSI value are averaged, obtain the RSSI value of this final ID base-station node, then use RSSI range finding formula RSSI=A-10nlg (d) to derive distance d, so just obtain the distance of accessory nodes of locations and certain ID base-station node.All base-station nodes are all adopted and process in this way, obtain n distance d1, d2 ..., dn.Last accessory nodes of locations records the coordinate of all base-station nodes and corresponding range data.
(3) base-station node and accessory nodes of locations range equation group is set up
（5）
This equation is Nonlinear System of Equations, after deducting the n-th equation, obtains linearizing equation with n-1 equation front in system of equations
AX=b (6)
Wherein, try to achieve by least square method:
(7)
Formula (7) is the coordinate calculated value of accessory nodes of locations, then carries out the calculating in Distance geometry direction according to the coordinate of accessory nodes of locations.
From foregoing, a kind of article losing-proof method and system of the present invention are positioned on target object by the accessory after connecting, get final product the distance of real time inspection article apart from oneself, and can revise at any time as required safe distance numerical value, article exceed predetermined safe distance time, equipment can send signal reminding user.Can ensure that user understands the safety case of article in real time like this, can be notified in time under article distance exceedes setting safe distance situation again simultaneously.Further, when article are stolen, the position signalling sent by accessory carries out backtrack search to article, greatly accelerates the investigation progress of police.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (9)
1. an article losing-proof method, is characterized in that: comprise monitoring step and give step for change,
Described monitoring step comprises:
A1, equipment itself sets up wireless connections with the accessory on target object;
Whether the distance between A2, monitoring equipment itself and accessory exceedes default safe distance, if so, then performs steps A 3; Otherwise, then return and re-execute steps A 2;
A3, startup prompting function;
Described step of giving for change comprises:
B1, according to the environmental pattern selected and the position signalling of accessory, the distance between computing equipment itself and accessory, and with the direction that pointer form indicates accessory to be positioned at;
B2, according to calculate and distance between accessory, send the prompt tone of respective frequencies.
2. a kind of article losing-proof method according to claim 1, is characterized in that: described prompting function its be specially: opertaing device itself carries out jingle bell and vibration.
3. a kind of article losing-proof method according to claim 1, is characterized in that: described step B1 comprises:
B11, control fitting send position signalling;
B12, receiving position signal, the distance between the method for calculating and locating computing equipment itself corresponding according to the environmental pattern selected and accessory, and with the direction that pointer form instruction accessory is positioned at.
4. a kind of article losing-proof method according to claim 3, is characterized in that: described environmental pattern comprises outdoor pattern and indoor mode.
5. a kind of article losing-proof method according to claim 4, is characterized in that: method for calculating and locating corresponding to described outdoor pattern is the calculating carrying out Distance geometry direction according to position signalling and both gps coordinates of equipment itself.
6. a kind of article losing-proof method according to claim 4, is characterized in that: the method for calculating and locating that described indoor mode is corresponding adopts RSSI location algorithm.
7. an article losing-proof system, is characterized in that, comprises monitoring modular and recovery module,
Described monitoring modular comprises:
Connection establishment unit, the accessory on equipment itself with target object sets up wireless connections;
Whether Real-Time Monitoring unit, exceed default safe distance for the distance between monitoring equipment itself and accessory, if so, then perform reminding unit; Otherwise, then return and re-execute Real-Time Monitoring unit;
Reminding unit, for starting prompting function;
Described recovery module comprises:
Computing unit, for the position signalling according to the environmental pattern selected and accessory, the distance between computing equipment itself and accessory, and with the direction that pointer form instruction accessory is positioned at;
Tip element, for according to calculate and distance between accessory, send the prompt tone of respective frequencies.
8. a kind of article losing-proof system according to claim 7, is characterized in that: described prompting function its be specially: opertaing device itself carries out jingle bell and vibration.
9. a kind of article losing-proof system according to claim 7, is characterized in that: described computing unit comprises:
Signal transmitting unit, sends position signalling for control fitting;
Signal analysis unit, for receiving position signal, the distance between the method for calculating and locating computing equipment itself corresponding according to the environmental pattern selected and accessory, and with the direction that pointer form instruction accessory is positioned at.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510053369.3A CN104616458A (en) | 2015-01-30 | 2015-01-30 | Losing prevention method and system of article |
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| CN201510053369.3A CN104616458A (en) | 2015-01-30 | 2015-01-30 | Losing prevention method and system of article |
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Cited By (5)
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| CN104952207A (en) * | 2015-06-19 | 2015-09-30 | 轻客智能科技（江苏）有限公司 | Control method for preventing misinformation of Bluetooth losing preventer |
| CN105785352A (en) * | 2016-04-22 | 2016-07-20 | 李明科 | Anti-loss monitoring method and positioning device |
| CN106487999A (en) * | 2015-09-01 | 2017-03-08 | 中兴通讯股份有限公司 | A kind of theft preventing method and device |
| CN107025750A (en) * | 2016-02-02 | 2017-08-08 | 橙远科技股份有限公司 | Abnormality monitoring system |
| CN107087250A (en) * | 2017-04-18 | 2017-08-22 | 深圳前海茂佳软件科技有限公司 | Search method for remote control, mobile terminal and computer-readable recording medium |
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| CN107087250A (en) * | 2017-04-18 | 2017-08-22 | 深圳前海茂佳软件科技有限公司 | Search method for remote control, mobile terminal and computer-readable recording medium |
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Application publication date: 20150513 |