CN104599455B - A kind of method and system of intelligent alarm - Google Patents
A kind of method and system of intelligent alarm Download PDFInfo
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- CN104599455B CN104599455B CN201410857554.3A CN201410857554A CN104599455B CN 104599455 B CN104599455 B CN 104599455B CN 201410857554 A CN201410857554 A CN 201410857554A CN 104599455 B CN104599455 B CN 104599455B
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- G—PHYSICS
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- 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
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Abstract
The invention discloses the method and system of a kind of intelligent alarm, described method includes: under calibration mode, obtain the distance set up between first terminal and the second terminal that short-distance wireless communication connects, set up the corresponding relation of the wireless signal strength that described distance is connected with described short-distance wireless communication, according to described corresponding relation, obtain the wireless signal strength alarm threshold value that the alarm distance preset is corresponding, after exiting calibration mode, if the wireless signal strength obtained is less than described wireless signal strength alarm threshold value, send the first warning.The present invention is by the relation of the distance between wireless signal strength and two terminals of the unique identification information acquisition correspondence of the second terminal, the distance between two terminals can be monitored by monitoring wireless signal strength, realize anti-lost prompting function, it is to avoid the distance detection error caused due to the individual variation of the wireless power of each equipment.
Description
Technical field
The present invention relates to short-distance wireless communication applied technical field, particularly relate to a kind of method of intelligent alarm and be
System.
Background technology
Short-distance wireless communication technology has been deep into the various aspects of people's live and work, including hands used in everyday
Machine, radio telephone etc., wherein, bluetooth is due to characteristics such as its low-power consumption, efficient data transfer, connective stability height, and application is very
Extensively.
Current a lot of intelligent watch or bracelet, all coordinate mobile phone to use, realize anti-lost merit by wireless networks such as bluetooths
Can, principle is to utilize the low-power consumption of bluetooth and connect distance property, is being set up the two of short-distance wireless communication connection by bluetooth
When apart exceeding a certain distance between terminal, connection both sides can be reminded by automatic alarm, prevent hypertelorism, play anti-lost prompting
Effect.
The wireless network that anti-lost prompting function is used is usually bluetooth or WIFI, but because of different mobile phone difference styles
Power launched by each wireless device and structure there are differences, and anti-lost prompting function software cannot adapt to the hands that many moneys are different simultaneously
Machine, to some distances than more sensitive use scene, launches power due to each wireless device and structure there are differences and can cause
, there is the biggest risk and inconvenience in bigger detection error, it is impossible to plays the effect of good anti-lost prompting.
Summary of the invention
The embodiment of the present invention provides the method and system of a kind of intelligent alarm, solves above technical problem.
For reaching this purpose, the present invention by the following technical solutions:
First aspect, the embodiment of the present invention provides a kind of method of intelligent alarm, including:
Under calibration mode, it is thus achieved that set up the distance between first terminal and the second terminal that short-distance wireless communication connects；
Set up the corresponding relation of the wireless signal strength that described distance is connected with described short-distance wireless communication；
According to described corresponding relation, it is thus achieved that the wireless signal strength alarm threshold value that default alarm distance is corresponding；
After exiting calibration mode, if the wireless signal strength obtained is less than described wireless signal strength alarm threshold value, send
First reports to the police.
Preferably, described step: according to described corresponding relation, it is thus achieved that the wireless signal strength that default alarm distance is corresponding
After alarm threshold value, also include:
After exiting calibration mode, obtain the wireless signal strength that described short-distance wireless communication connects in real time；
Judge that whether the wireless signal strength obtained is less than described wireless signal strength alarm threshold value；
If so, the first warning is sent；
Otherwise, do not send the first warning, continue to obtain in real time the wireless signal strength that described short-distance wireless communication connects.
Preferably, described step: under calibration mode, it is thus achieved that set up the first terminal and second that short-distance wireless communication connects
Before distance between terminal, also include:
First terminal and the second terminal are set up short-distance wireless communication and are connected；
Obtain the unique identification information of the second terminal；
Judge whether the memorizer of this locality stores the described corresponding relation corresponding with described unique identification information；
If so, from described memorizer, obtain described corresponding relation；
Otherwise, control first terminal and enter calibration mode.
Preferably, described step: after controlling first terminal entrance calibration mode, also include:
Start sonic detection function, obtain current time, current time is sent the time as sound wave, is encoded into detection sound
Ripple, is sent by sound wave mode；
Obtained the acoustic transit time of described detection sound wave from the second terminal by short-distance wireless communication；Described detection sound
The acoustic transit time of ripple is that the second terminal sends time meter according to the time and described sound wave that receive described detection sound wave
Calculate and obtain；
Acoustic transit time and the transmission speed of sound wave according to described detection sound wave calculate acquisition and set up short-distance wireless
Distance between first terminal and second terminal of communication connection；
Close sonic detection function.
Preferably, described step: the sound wave obtaining described detection sound wave from the second terminal by short-distance wireless communication passes
After the defeated time, also include: obtain and receive the wireless communication that during described acoustic transit time, described short-distance wireless communication connects
Number intensity；
Described step: set up described distance pass corresponding with the wireless signal strength that described short-distance wireless communication connects
System；Specifically include:
The wireless communication being connected with short-distance wireless communication described when receiving described acoustic transit time according to described distance
Number intensity generates an associated data files, is stored in described memorizer；
Judge whether the quantity of the associated data files in described memorizer is less than the amount threshold preset；
If so, sending the second warning, prompting user moves first terminal and/or the position of the second terminal；
Otherwise, described distance is set up according to the associated data files of storage wireless with what described short-distance wireless communication was connected
The corresponding relation of signal intensity, is stored in described corresponding relation in described memorizer, and controls first terminal and exit calibrating die
Formula.
Preferably, described step: send the second warning, prompting user moves first terminal and/or the position of the second terminal
Afterwards, also include: detect whether in real time to receive the switch controlling signal controlling first terminal startup sonic detection function；
If so, it is back to described step: start sonic detection function, obtains current time, using current time as sound wave
The transmission time, it is encoded into detection sound wave, is sent by sound wave mode；
Otherwise, continue to detect whether to receive the switch controlling signal controlling first terminal startup sonic detection function.
Preferably, the acoustic transit time of described detection sound wave be the second terminal according to receive described detection sound wave time
Between and described sound wave send Time Calculation obtain, particularly as follows:
Second terminal detects whether to receive the described detection sound wave that first terminal sends in real time；
If it is not, the second terminal continues to detect whether in real time to receive the described detection sound wave that first terminal sends；
If so, the second terminal obtains the time receiving described detection sound wave；Described detection sound wave is carried out by the second terminal
Decoding, it is thus achieved that the sound wave of described detection sound wave sends the time；Second terminal is according to time and the institute receiving described detection sound wave
State sound wave to send the time and obtain the acoustic transit time of described detection sound wave；Second terminal passes through short-distance wireless communication by described
Acoustic transit time sends to first terminal.
Preferably, described step: before first terminal and the second terminal set up short-distance wireless communication connection, also include:
Pre-set an amount threshold and an alarm distance；
Wherein, the alarm distance between alarm distance i.e. first terminal and the second terminal.
Preferably, described step: inquire about local memorizer according to the unique identification information of the second terminal, it is judged that local
Before whether memorizer stores the described corresponding relation corresponding with described unique identification information, also include:
Detect whether in real time to receive the switch controlling signal controlling first terminal entrance calibration mode；
If so, control first terminal and enter calibration mode；
Otherwise, local memorizer is inquired about according to the unique identification information of the second terminal, it is judged that local memorizer is
No storage has the described corresponding relation corresponding with described unique identification information.
Preferably, described step: first terminal and the second terminal are set up short-distance wireless communication and connected, particularly as follows:
First terminal and the second terminal are set up short-distance wireless communication by bluetooth and are connected.
Second aspect, the embodiment of the present invention provides the system of a kind of intelligent alarm, including: first terminal and the second terminal；
First terminal includes:
Numerical value processing module, under calibration mode, it is thus achieved that set up the first terminal and that short-distance wireless communication connects
Distance between two terminals；It is additionally operable to set up the right of the wireless signal strength that described distance is connected with described short-distance wireless communication
Should be related to；It is additionally operable to according to described corresponding relation, it is thus achieved that the wireless signal strength alarm threshold value that default alarm distance is corresponding；
First alarm module, after being used for exiting calibration mode, if the wireless signal strength obtained is less than described wireless signal
Intensity alarm threshold value, sends the first warning.
Preferably, first terminal also includes wireless signal strength acquisition module, after being used for exiting calibration mode, obtains in real time
The wireless signal strength that described short-distance wireless communication connects；
Described first alarm module is additionally operable to judge that whether the wireless signal strength obtained is less than described wireless signal strength
Alarm threshold value；If so, the first warning is sent；Otherwise, do not send the first warning, continue to obtain in real time described short-distance wireless communication
The wireless signal strength connected.
Preferably, first terminal also includes the first communication connection module and memorizer；
Described first communication connection module is connected for setting up short-distance wireless communication with the second terminal；
Described numerical value processing module is additionally operable to obtain the unique identification information of the second terminal；
Described numerical value processing module is additionally operable to judge whether stored in described memorizer and described unique identification information pair
The described corresponding relation answered；If so, from described memorizer, obtain described corresponding relation；Otherwise, control first terminal and enter school
Quasi-mode.
Preferably, first terminal also includes the first clock module and the first sound wave transceiver module；
A described clock module obtains current time in real time；
Described first sound wave transceiver module is used for starting sonic detection function, obtains current time, using current time as
Sound wave sends the time, is encoded into detection sound wave, is sent by sound wave mode；
Described numerical value processing module is additionally operable to obtain described detection sound wave by short-distance wireless communication from the second terminal
Acoustic transit time；The acoustic transit time of described detection sound wave is that the second terminal is according to the time receiving described detection sound wave
And described sound wave sends Time Calculation and obtains；
Described numerical value processing module is additionally operable to the acoustic transit time according to described detection sound wave and the transmission speed of sound wave
Calculate and obtain the distance set up between first terminal and the second terminal that short-distance wireless communication connects；
Described numerical value processing module is additionally operable to after obtaining described distance, sends to described first sound wave transceiver module and closes
Close the control signal of sonic detection function；
Described first sound wave transceiver module is additionally operable to receiving the closedown sonic detection merit that described numerical value processing module sends
After the control signal of energy, close sonic detection function.
Preferably, described wireless signal strength acquisition module is additionally operable to described in when acquisition receives described acoustic transit time
The wireless signal strength that short-distance wireless communication connects；
Described numerical value processing module is additionally operable to according to described distance and described short distance when receiving described acoustic transit time
The wireless signal strength connected from radio communication generates an associated data files, is stored in described memorizer；
Described numerical value processing module is additionally operable to judge that whether the quantity of the associated data files in described memorizer is less than pre-
If amount threshold；If so, the second alarm control signal is sent to described first alarm module；Otherwise, according to the association of storage
Data file sets up the corresponding relation of the wireless signal strength that described distance is connected with described short-distance wireless communication, by described right
Should close and be stored in described memorizer, and control first terminal and exit calibration mode；
Described first alarm module is additionally operable to when receiving described second alarm control signal, sends the second warning, prompting
User moves first terminal and/or the position of the second terminal.
Preferably, first terminal also includes controlling switch；The described switch that controls includes starting the function of sonic detection function
Button, after described first alarm module sends the second warning, if detecting the functional keys quilt starting sonic detection function
Click on or touch-control comes into force, send the switch control controlling first terminal startup sonic detection function to described first sound wave transceiver module
Signal processed；
Described first sound wave transceiver module is additionally operable to detect whether that receiving control first terminal starts sonic detection merit in real time
Can switch controlling signal, if so, start sonic detection function, obtain current time, using current time as sound wave send time
Between, it is encoded into detection sound wave, is sent by sound wave mode；Otherwise, continue to detect whether that receiving control first terminal starts
The switch controlling signal of sonic detection function.
Preferably, the second terminal includes that the second communication connection module, second clock module, acoustic transit time obtain mould
Block, the second sound wave transceiver module:
Described second communication connection module is connected for setting up short-distance wireless communication with first terminal；
Described second clock module obtains the current time in real time；
Described second sound wave transceiver module is for detecting whether in real time to receive the described detection sound wave that first terminal sends；
If it is not, continue to detect whether to receive the described detection sound wave that first terminal sends；If so, notify that described acoustic transit time obtains
Delivery block obtains current time from described second clock module, and the i.e. second terminal receives the time of described detection sound wave；
Described second sound wave transceiver module is additionally operable to be decoded described detection sound wave, it is thus achieved that the sound of described detection sound wave
Ripple sends the time；
Described acoustic transit time acquisition module receives described detection sound wave for obtaining from described second clock module
Time and from described second sound wave transceiver module obtain described detection sound wave sound wave send the time；It is additionally operable to according to reception
Time and described sound wave to described detection sound wave sends the time and obtains the acoustic transit time of described detection sound wave；It is additionally operable to lead to
Cross short-distance wireless communication to send described acoustic transit time to first terminal.
Preferably, first terminal also includes threshold setting module, is used for pre-setting an amount threshold and an alarm distance；
Wherein, the alarm distance between described alarm distance i.e. first terminal and the second terminal.
Preferably, the described switch that controls also includes starting the functional keys of calibration mode, if for startup calibration being detected
The functional keys of pattern is clicked or touch-control comes into force, and sends to described numerical value processing module and controls first terminal entrance calibration mode
Switch controlling signal；
Described numerical value processing module is additionally operable to detect whether in real time to receive the switch controlling first terminal entrance calibration mode
Control signal；If so, control first terminal and enter calibration mode；Otherwise, this is inquired about according to the unique identification information of the second terminal
The memorizer on ground, it is judged that whether store the described corresponding relation corresponding with described unique identification information in local memorizer.
Preferably, described first communication connection module and described second communication connection module are Bluetooth function module；First
Terminal is set up short-distance wireless communication with the second terminal by bluetooth and is connected.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought: first terminal and the second terminal are set up short first
When distance wireless communication connects, enter calibration mode, set up the corresponding relation of distance between wireless signal strength and two terminals,
Obtaining after corresponding relation, i.e. exiting calibration mode, then can according to this corresponding relation and and two terminals pre-set between
Alarm distance obtain a wireless signal strength alarm threshold value, obtain wireless signal strength less than wireless signal strength report to the police
During threshold value, send warning, it is achieved anti-lost prompting function, the wireless communication that the present invention obtains after exiting calibration mode by monitoring in real time
Number intensity can realize monitoring the distance between two terminals in real time the most too far, so can avoid the wireless merit due to each equipment
The distance that the individual variation of rate causes detects error, and this corresponding relation can store after foundation, sets up in second time
Short-distance wireless communication directly invokes acquisition when connecting, very convenient and practical.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, institute in the embodiment of the present invention being described below
The accompanying drawing used is needed to be briefly described, it should be apparent that, the accompanying drawing in describing below is only some enforcements of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to implements according to the present invention
The content of example and these accompanying drawings obtain other accompanying drawing.
Fig. 1 is the block diagram of the system of the intelligent alarm that the embodiment of the present invention provides.
Fig. 2 is the method flow diagram of the intelligent alarm that the embodiment of the present invention provides.
Fig. 3 is the method flow diagram setting up corresponding relation that the embodiment of the present invention provides.
Fig. 4 is the method flow diagram that the second terminal that the embodiment of the present invention provides obtains acoustic transit time.
In figure: 10, first terminal；20, the second terminal；11, the first communication connection module；12, wireless signal strength obtains
Module；13, the second alarm module；14, memorizer；15, numerical value processing module；16, threshold setting module；17, the first clock mould
Block；18, the first sound wave transceiver module；19, switch is controlled；21, the second communication connection module；22, the first alarm module；23,
Two sound wave transceiver modules；24, acoustic transit time acquisition module；25, second clock module.
Detailed description of the invention
Technical scheme and the technique effect reached for making to present invention solves the technical problem that, using are clearer, below
By combining accompanying drawing, the technical scheme of the embodiment of the present invention is described in further detail, it is clear that described embodiment is only
It is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art exist
Do not make every other embodiment acquired under creative work premise, broadly fall into the scope of protection of the invention.
Refer to the block diagram that Fig. 1, Fig. 1 are the systems of the intelligent alarm that the embodiment of the present invention provides.This system bag
Include: first terminal 10 and the second terminal 20.
First terminal 10 includes: the first communication connection module 11, wireless signal strength acquisition module the 12, second alarm module
13, memorizer 14, numerical value processing module 15, threshold setting module the 16, first clock module the 17, first sound wave transceiver module 18 and
Control switch 19.
Second terminal 20 includes: second communication connection module the 21, second alarm module the 22, second sound wave transceiver module 23,
Acoustic transit time acquisition module 24 and second clock module 25.
Concrete, the first communication connection module 11 and the second communication connection module 21 are bluetooth module, are used for making first
Terminal 10 and the second terminal 20 are set up short-distance wireless communication and are connected, it is achieved data and information are mutual.Wherein, first terminal 10 is
Master terminal, the second terminal 20 is from terminal.
Second terminal 20 sets up short-distance wireless communication when being connected with first terminal 10, first sends one to first terminal 10
Solicited message, solicited message includes PIN (Personal Identification Number, individual recognition code) code, first
Communication connection module 11 receives this solicited message, it is judged that whether the PIN code in solicited message is with the PIN code pre-set mutually
Join, if so, return and allow to set up the signal of communication connected, obtain user name and the physical address of the second terminal 20, with second eventually
End 20 is set up short-distance wireless communication and is connected；Otherwise, the signal of communication of connection failure is returned.
Concrete, numerical value processing module 15 is for obtaining the unique identification information of the second terminal 20.First terminal 10 and
After two terminals 20 set up short-distance wireless communication connection, numerical value processing module 15 gets second from the first communication connection module 11
The relevant data message of terminal 20, connect including the second terminal 20 radio communication used user name, for the thing of communication
Reason address, PIN code etc., optional one of which data or two item data are combined as terminal unique identification information, the present embodiment
Use the second terminal 20 for the physical address of communication as the unique identification information of the second terminal 20, generally, physics
Address and terminal are one to one.There is not different terminals and use the situation of same physical address.
If two terminals connect for setting up for the first time short-distance wireless communication, numerical value processing module 15 is additionally operable to the will obtained
The relevant data information memory of two terminals 20 is in local memorizer 14.
Concrete, numerical value processing module 15 is under calibration mode, it is thus achieved that set up the first of short-distance wireless communication connection
Distance between terminal 10 and the second terminal 20；It is additionally operable to set up the nothing that this distance is connected apart from lower short-distance wireless communication with this
The corresponding relation of line signal intensity；It is additionally operable to according to this corresponding relation, it is thus achieved that the wireless signal that default alarm distance is corresponding is strong
Degree alarm threshold value.After first alarm module 13 is used for exiting calibration mode, if the wireless signal strength obtained is less than this wireless communication
Number intensity alarm threshold value, sends the first warning.
First terminal 10 and the second terminal 20 are set up short-distance wireless communication first and are connected, and first terminal 10 enters calibrating die
Formula, under calibration mode, after setting up distance between two terminals and the corresponding relation of wireless signal strength, by this corresponding relation and the
The unique identification information of two terminals 20 is stored in memorizer 14 one to one, in order to next time sets up short-distance wireless communication
Call during connection.After setting up corresponding relation, obtain a wireless signal according to the alarm distance between this corresponding relation and two terminals
Intensity alarm threshold value, can realize monitoring the distance between two terminals by monitoring wireless signal strength, and strong at wireless signal
When degree is less than wireless signal strength alarm threshold value, the distance between i.e. two terminals is more than the alarm distance between two terminals preset
Time, send warning, it is achieved anti-lost prompting function, so can avoid the distance detection error caused due to individual variation, it is achieved more
Add Distance positioning accurately.
Concrete, after wireless signal strength acquisition module 12 is used for exiting calibration mode, obtains short-distance wireless in real time and lead to
The wireless signal strength that letter connects；First alarm module 13 is additionally operable to judge that whether the wireless signal strength obtained in real time is less than being somebody's turn to do
Wireless signal strength alarm threshold value；If so, the first warning is sent；Otherwise, do not send the first warning, continue acquisition in real time described short
The wireless signal strength that distance wireless communication connects.
First communication connection module 11 is connected for setting up short-distance wireless communication with the second terminal 20；Numerical value processing module
15 are additionally operable to judge whether store the corresponding relation corresponding with the unique identification information of the second terminal 20 in memorizer 14；If
To show that two terminals do not connect for setting up short-distance wireless communication first, and the most established distance between two terminals with
The corresponding relation of wireless signal strength, directly invokes, and directly obtains this corresponding relation from memorizer 14；Otherwise, show
Two terminals connect for setting up short-distance wireless communication first, or do not set up the distance between two terminals and wireless signal strength before
Corresponding relation, now, control first terminal 10 enter calibration mode, set up the distance between two terminals and wireless signal strength
Corresponding relation.
Concrete, the first clock module 17 obtains current time in real time；First clock module 17 and second clock mould
Block 25 realizes clock by short-distance wireless communication and synchronizes.
First sound wave transceiver module 18 is used for starting sonic detection function, obtains current time, using current time as sound
Ripple sends the time, is encoded into detection sound wave, is sent by sound wave mode；Numerical value processing module 15 is additionally operable to pass through short distance
Radio communication obtains the acoustic transit time of detection sound wave from the second terminal 20；The acoustic transit time of detection sound wave was the second end
End 20 sends Time Calculation according to the time and sound wave that receive detection sound wave and obtains；Numerical value processing module 15 is additionally operable to basis
The transmission speed of the detection acoustic transit time of sound wave and sound wave calculates and obtains set up that short-distance wireless communication connects first eventually
Distance between end 10 and the second terminal 20；Numerical value processing module 15 is additionally operable to after the distance obtained between two terminals, to
First sound wave transceiver module 18 sends the control signal closing sonic detection function；First sound wave transceiver module 18 is additionally operable to receiving
After the control signal of the closedown sonic detection function of numerical value processing module 15 transmission, close sonic detection function.
Sonic detection function is opened when corresponding relation set up by needs, to obtain the distance between two terminals, and is obtaining
After this distance, close sonic detection function immediately, reduce the energy loss of first terminal 10.
Concrete, setting up the corresponding relation of distance between two terminals and wireless signal strength needs two data, and i.e. two
Distance between terminal and to should apart under the wireless signal strength that connects of short-distance wireless communication.Wireless signal strength obtains
Delivery block 12 is additionally operable to obtain the wireless signal strength that when receiving acoustic transit time, short-distance wireless communication connects；At numerical value
Manage distance and described short distance when receiving described acoustic transit time that module 15 is additionally operable between two terminals according to acquisition
The wireless signal strength that radio communication connects generates an associated data files, is stored in memorizer 14.
Numerical value processing module 15 is additionally operable to judge that the quantity of the associated data files in memorizer 14 is whether less than presetting
Amount threshold；If so, the second alarm control signal is sent to the first alarm module 13；Otherwise, according to the associated data literary composition of storage
Part sets up the corresponding relation of the distance between two terminals and this wireless signal strength being connected apart from lower short-distance wireless communication, will
The corresponding relation set up is stored in memorizer 14, and controls first terminal 10 and exit calibration mode.
Take the system of the intelligent alarm of the present embodiment, by the transmission of sound wave and the time difference of reception draw two terminals it
Between distance, and the distance between two terminals and wireless signal strength are associated, set up corresponding relation, the table of corresponding relation
Existing form has multiple, such as: relational expression or relation curve etc., different equipment, its wireless signal strength used and two terminals it
Between the corresponding relation of distance different, it is only necessary to carrying out data acquisition defecate collection several times can obtain when setting up communication connection first, and
And after obtaining this corresponding relation, the unique identification information of the second terminal 20 and this corresponding relation are stored in one to one
In reservoir 14, as set up a data base comprising both data, this data base can comprise each and every one unique identification informations many and with
Multiple unique identification informations corresponding relation one to one, the most just can overcome the disadvantages that the individual variation of the wireless power of distinct device,
Realize precise positioning, greatly improve suitable device and the application scenarios of this system.
First alarm module 13 is additionally operable to when receiving the second alarm control signal, sends the second warning, and prompting user moves
Dynamic first terminal and/or the position of the second terminal.
First warning and the second effect reported to the police are different, and therefore, the type of alarm of employing distinguishes more preferably, such as the first report
The alert audible alarm that uses, second reports to the police then uses sound and light alarm etc., and certainly, two modes reported to the police may be used without identical warning side
Formula, as used audible-visual alarm lamp simultaneously.In the present embodiment, the second type of alarm reported to the police uses display lamp flicker to report to the police,
Second type of alarm reported to the police uses broadcasting audio frequency to report to the police.
First terminal 10 also includes controlling switch 19；Control switch 19 and include starting the functional keys of sonic detection function,
After the first alarm module 13 sends the second warning, if detecting, the functional keys starting sonic detection function is clicked or tactile
Control comes into force, and sends control first terminal 10 to the first sound wave transceiver module 18 and starts the switch controlling signal of sonic detection function；
First sound wave transceiver module 18 is additionally operable to detect whether that receiving control first terminal 10 starts the switch of sonic detection function in real time
Control signal, if so, starts sonic detection function, obtains current time, as sound wave, current time is sent the time, is encoded into
Detection sound wave, is sent by sound wave mode；Otherwise, continue to detect whether that receiving control first terminal 10 starts sonic detection
The switch controlling signal of function.
Second communication connection module 21 is connected for setting up short-distance wireless communication with first terminal 10；
Second clock module 25 obtains the current time in real time；Second sound wave transceiver module 23 for detection is in real time
No receive the detection sound wave that first terminal 10 sends；If it is not, continue to detect whether to receive the detection that first terminal 10 sends
Sound wave；If so, notice acoustic transit time acquisition module obtains current time from second clock module 25, and the i.e. second terminal 20 connects
Receive the time of this detection sound wave；The detection sound wave that second sound wave transceiver module 23 is additionally operable to receiving is decoded, it is thus achieved that should
The sound wave comprised in detection sound wave sends the time；
Acoustic transit time acquisition module 24 for obtain from second clock module 25 time receiving detection sound wave with
And the sound wave transmission time of detection sound wave is obtained from the second sound wave transceiver module 23；Be additionally operable to according to receive detection sound wave time
Between with sound wave send the time obtain detect sound wave acoustic transit time；It is additionally operable to sonic transmissions by short-distance wireless communication
Time sends to first terminal.
After first sound wave transceiver module 18 starts sonic detection function, it is contemplated that detection sound wave likely transmit less than
The situation of the second terminal, for guaranteeing that acoustic signals can be transferred to the second terminal 20, as run into the factors such as barrier, may be configured as
Send one-time detection sound wave at regular intervals, if what the first sound wave transceiver module 18 second terminal 20 returned according to detection sound wave
Acoustic transit time, then can close sonic detection function immediately, reduces energy loss.
Concrete, first terminal 10 also includes threshold setting module 16, is used for pre-setting an amount threshold and a warning
Distance；Wherein, alarm distance is the alarm distance between first terminal and the second terminal.
Concrete, control switch 19 and also include starting the functional keys of calibration mode, if for startup calibrating die being detected
The functional keys of formula is clicked or touch-control comes into force, and sends control first terminal 10 to numerical value processing module 15 and enters calibration mode
Switch controlling signal；Numerical value processing module 15 is additionally operable to detect whether that receiving control first terminal 10 enters calibration mode in real time
Switch controlling signal；If so, control first terminal 10 and enter calibration mode；Otherwise, letter is uniquely identified according to the second terminal 20
Breath consults memory 14, it is judged that whether store the corresponding relation corresponding with this unique identification information in memorizer 14.
Concrete, the first communication connection module 11 and the second communication connection module 21 are Bluetooth function module；First terminal
10 set up short-distance wireless communication with the second terminal 20 by bluetooth is connected..
In the present embodiment, except when setting up short-distance wireless communication connection for the first time, enter outside calibration mode, it is possible to pass through merit
Energy button or function key actively enter this calibration mode to enable, and as some application scenarios is relatively big for radiofrequency signal impact, adopt
Also may can there is position error with corresponding relation before, now, actively enter by triggering this functional keys or function key
Calibration mode re-establishes wireless signal strength and the corresponding relation of distance time under this environment, in order to realize precise positioning.
Refer to the method flow diagram that Fig. 2, Fig. 2 are the intelligent alarms that the embodiment of the present invention provides, the method includes:
S100, the alarm distance pre-set between an amount threshold and two terminals.
This step is initialization step, and first terminal 10, before setting up short haul connection connection with the second terminal 20, passes through
Alarm distance between amount threshold, two terminals can be set by threshold setting module 16.
Amount threshold is required associated data files the quantity obtained, and after starting sonic detection function, can obtain every time
One associated data files.
S110, first terminal 10 and the second terminal 20 are set up short-distance wireless communication and are connected.
Wherein, the first communication connection module 11 and the second communication connection module 21 are Bluetooth function module, pass through bluetooth
Make first terminal 10 and the second terminal 20 set up short-distance wireless communication to connect, it is achieved data and information are mutual.
S120, obtain the unique identification information of the second terminal 20.
In the present embodiment, the unique identification information of the second terminal 20 is second terminal 20 physical address for communication.
S130, detect whether in real time to receive and control first terminal 10 and enter the switch controlling signal of calibration mode；If so, enter
Enter step S151, otherwise, enter step S140.
Some application scenarios is relatively big for radiofrequency signal impact, and the corresponding relation before employing also may can exist location by mistake
Difference, now, can enter calibration modes by control switch 19 selectivitys, re-establish time under this environment wireless signal strength and
The corresponding relation of distance, in order to realize precise positioning.
S140, judge whether the memorizer 14 of this locality stores the first terminal corresponding with this unique identification information 10 with
The corresponding relation of the wireless signal strength that the distance between the second terminal 20 is connected with short-distance wireless communication；If so, step is entered
Rapid S150, otherwise, enters step S151.
This step is for judging that first terminal 10 is the need of entering calibration mode.
S150, from memorizer 14, obtain this corresponding relation.
If in memorizer 14 there being between first terminal 10 and the second terminal 20 corresponding with this unique identification information storage
The corresponding relation of the wireless signal strength that distance is connected with short-distance wireless communication, directly obtains this correspondence from memorizer 14 and closes
System.
S151, control first terminal 10 enter calibration mode.
If memorizer 14 not storing between first terminal 10 and the second terminal 20 corresponding with this unique identification information
The corresponding relation of wireless signal strength that is connected with short-distance wireless communication of distance, then demonstrate the need for setting up this corresponding relation,
Enter step S152.
Under S152, calibration mode, it is thus achieved that set up short-distance wireless communication connect first terminal 10 and the second terminal 20 it
Between distance.
S153, the distance set up between two terminals are corresponding with the wireless signal strength that short-distance wireless communication connects closes
System.
For radio communication, the distance between wireless signal strength and two terminals is inversely proportional to.In the present embodiment, for indigo plant
Tooth, the relational expression quantifying wireless signal strength and distance is P=A-10 × n × lgd.Wherein, d is that first terminal 10 and second is whole
Distance between end 20, P is the second terminal 20 when being d with the distance of first terminal 10, and wireless signal strength acquisition module 12 is sampled
The wireless signal strength arrived, A be radio signal transmission 1 meter remote time wireless signal wireless signal strength, n is that propagation factor is normal
Number.Can learn from this relational expression, the distance between wireless signal strength and two terminals is inversely proportional to.Sampling is under multiple distances
The wireless signal strength of wireless signal, and under the plurality of distance, by the way of sonic detection, obtain first terminal 10 He respectively
Distance between second terminal 20, can draw the propagation factor constant under current environment and the numerical value of A, so, wireless signal
Distance between intensity with two terminals just can associate, it is achieved quantifies labelling.
For other kinds of radio communication, such as WIFI (Wireless Fidelity, wireless network), NFC (Near
Field Communication, near field communication (NFC)) etc., it is possible to use similar method to draw this corresponding relation.As
Using WIFI, using first terminal 10 as focus, the wireless signal strength that first terminal 10 sends is continuous along with the increase of distance
Decay, by multiple repairing weld the second terminal 20 wireless signal strength under different distance, just can get a relation curve, carries out
Calculate the corresponding relation of the distance quantified between wireless signal strength and two terminals.
S154, control first terminal 10 exit calibration mode, are back to step S150.
Corresponding relation has been set up, and i.e. exits calibration mode.
Step S160 is also included after step S150.
S160, obtain wireless signal strength alarm threshold value corresponding to alarm distance preset；
After step S150 gets this corresponding relation, can get a nothing according to this corresponding relation and the alarm distance preset
Line signal intensity alarm threshold value.
S170, the wireless signal strength that acquisition short-distance wireless communication connects in real time.
After exiting calibration mode, obtain the wireless signal strength that short-distance wireless communication connects in real time, to monitor first eventually
End 10 and the second distance between terminal 20, it is achieved two terminals follow function.
S180, judge that the wireless signal strength obtained is whether less than wireless signal strength alarm threshold value；If so, step is entered
S190, otherwise, is back to step S170.
S190, send the first warning.
When wireless signal strength is less than wireless signal strength alarm threshold value, show first terminal 10 and the second terminal 20 it
Between hypertelorism, send the first warning, to point out user two terminal current hypertelorism.
First alarm module 13 sends the first alarm control signal also by radio communication to the second terminal 20, controls the
Second alarm module 22 of two terminals 20 also sends warning simultaneously.
Refer to Fig. 3, Fig. 3 is the method flow diagram setting up corresponding relation that the embodiment of the present invention provides.Step S152 has
Body includes:
S1521, startup sonic detection function.
After first terminal 10 enters calibration mode, the first sound wave transceiver module 18 starts to start sonic detection function, and to
Second terminal 20 sends the control signal starting sonic detection function, controls the second terminal 20 and starts sonic detection function.
S1522, acquisition current time, send the time using current time as sound wave, be encoded into detection sound wave, pass through sound wave
Mode sends.
After sonic detection function on, the first sound wave transceiver module 18 obtains current time from the first clock module 17, will
Current time sends the time as sound wave, is encoded into detection sound wave, is sent by sound wave mode.
S1523, obtain the acoustic transit time of this detection sound wave from the second terminal 20.
Obtained the acoustic transit time of described detection sound wave from the second terminal 20 by short-distance wireless communication.Detection sound wave
Acoustic transit time to be the second terminal 20 send according to the sound wave of the time and this detection sound wave that receive this detection sound wave
Time Calculation obtains.
The wireless signal strength that when S1524, acquisition receive acoustic transit time, short-distance wireless communication connects.
S1525, transmission speed according to the detection acoustic transit time of sound wave and sound wave calculate acquisition set up short distance without
Distance between first terminal 10 and second terminal 20 of line communication connection.
In this step, the transmission speed of sound wave is known, is also easy to according to measuring acquisition, therefore the sound wave of detection sound wave
The product of the transmission speed of transmission time and sound wave is sets up first terminal 10 and the second end that short-distance wireless communication connects
Distance between end 20.
S1526, closedown sonic detection function.
Obtain the distance between two terminals and this apart under wireless signal strength after, close first terminal 10 immediately
Sonic detection function, sends the control signal closing sonic detection function simultaneously, controls the second terminal and close to the second terminal 20
Sonic detection function.Enter step S1531.
Step S153 specifically includes:
S1531, strong with the wireless signal that short-distance wireless communication when receiving acoustic transit time is connected according to this distance
Degree generates an associated data files, is stored in memorizer 14.
Whether S1532, the quantity of the associated data files judged in memorizer 14 are less than the amount threshold preset；If so,
Enter step S1533, otherwise, enter step S1532.
For different quantified precision demands, the quantity of required sampled data is the most different, in the present embodiment, and sampled data
I.e. associated data files, the corresponding relation for bluetooth, wireless signal strength and distance is P=A-10 × n × lgd, only needs
Go out the value of A and n, therefore amount threshold is 2 can to draw corresponding relation.
S1532, set up the corresponding relation of the wireless signal strength that this distance is connected with short-distance wireless communication, by this correspondence
Pass is stored in memorizer 14.
Numerical value processing module 15 sets up, according to associated data files, the wireless communication that this distance is connected with short-distance wireless communication
The corresponding relation of number intensity, is stored in this corresponding relation in memorizer 14, and enters step S154.
S1533, send the second warning.
First alarm module 13 sends the second warning.Prompting user moves first terminal and/or the position of the second terminal；And
Sending the second alarm control signal to the second terminal 20, the second alarm module 22 controlling the second terminal 20 also sends Secondary Report
Alert.
S1534, detect whether in real time to receive and control first terminal 10 and start the switch controlling signal of sonic detection function；If
It is to be back to step S1521；Otherwise, it is back to step S1533.
After first alarm module 13 sends the second warning, the function controlling switch 19 offer one startup sonic detection function is pressed
Button, if for detecting that the functional keys starting sonic detection function is clicked or touch-control comes into force, to the first sound wave transceiver module
18 send control first terminal 10 starts the switch controlling signal of sonic detection function.
First sound wave transceiver module 18 detects whether that receiving control first terminal 10 starts opening of sonic detection function in real time
Close control signal.If so, it is back to step S1521, otherwise, is back to step S1533.
Refer to Fig. 4, Fig. 4 is the method flow that the second terminal 20 that the embodiment of the present invention provides obtains acoustic transit time
Figure.The method includes:
S210, detect whether to receive the control signal of the startup sonic detection function that first terminal 10 sends in real time；If
It is to enter step S220, otherwise, continue the control detecting whether to receive the startup sonic detection function that first terminal 10 sends
Signal.
Second sound wave transceiver module 23 detects whether to receive the startup sonic detection function that first terminal 10 sends in real time
Control signal, if so, start sonic detection function, enter step S220, otherwise, continue to detect whether to receive first terminal
The control signal of the startup sonic detection function that 10 send.
S220, detect whether in real time to receive the detection sound wave that first terminal 10 sends；If it is not, continue to detect whether to receive
The described detection sound wave sent to first terminal 10；If so, step S230 is entered.
After second sound wave transceiver module 23 starts sonic detection function, detect whether that receiving first terminal 10 sends in real time
Detection sound wave.
S230, acquisition receive the time detecting sound wave.
After second sound wave transceiver module 23 receives detection sound wave, obtain current time from second clock module 25, i.e. obtain
Receive the time of detection sound wave.
S240, to detection sound wave be decoded, it is thus achieved that detection sound wave sound wave send the time.
Detection sound wave is decoded by the second sound wave transceiver module 23, it is thus achieved that the sound wave of detection sound wave sends the time.
When S250, the time that sends according to the time and sound wave receiving detection sound wave obtain the sonic transmissions detecting sound wave
Between.
Acoustic transit time acquisition module 24 carries out difference operation by obtaining two times, it is thus achieved that the sound wave of detection sound wave passes
The defeated time.
S260, by short-distance wireless communication by acoustic transit time send to first terminal 10.
Acoustic transit time is sent to first terminal by acoustic transit time acquisition module 24 by short-distance wireless communication
10。
In the present embodiment, the second terminal 20 is Wearable, including: mobile phone, wrist-watch, watch type mobile telephone, wrist strap etc..The
One terminal 10 is the portable set such as mobile phone or panel computer, and this portable set also includes: one or more than one place
Reason device, and one or more than one program；Wherein, one or more than one program are stored in memorizer 14, and warp
Configuring and performed by one or more than one processor, one or more than one program comprise the finger for carrying out above step
Order.
One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can pass through hardware
Complete, it is also possible to instructing relevant hardware by program and complete, this program can be stored in a computer-readable storage medium
In matter, storage medium can include memorizer, disk or CD etc..
Above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention's
Thought, the most all will change, and this specification content should not be construed as the present invention
Restriction.
Claims (16)
1. the method for an intelligent alarm, it is characterised in that including:
Under calibration mode, it is thus achieved that set up the distance between first terminal and the second terminal that short-distance wireless communication connects；
Set up the corresponding relation of the wireless signal strength that described distance is connected with described short-distance wireless communication；
According to described corresponding relation, it is thus achieved that the wireless signal strength alarm threshold value that default alarm distance is corresponding；
After exiting calibration mode, if the wireless signal strength obtained is less than described wireless signal strength alarm threshold value, send first
Report to the police；
Described step: according to described corresponding relation, it is thus achieved that wireless signal strength alarm threshold value corresponding to default alarm distance it
After, also include:
After exiting calibration mode, obtain the wireless signal strength that described short-distance wireless communication connects in real time；
Judge that whether the wireless signal strength obtained is less than described wireless signal strength alarm threshold value；
If so, the first warning is sent；
Otherwise, do not send the first warning, continue to obtain in real time the wireless signal strength that described short-distance wireless communication connects；
Described step: under calibration mode, it is thus achieved that set up between first terminal and the second terminal that short-distance wireless communication connects
Distance before, also includes:
First terminal and the second terminal are set up short-distance wireless communication and are connected；
Obtain the unique identification information of the second terminal；
Judge whether the memorizer of this locality stores the described corresponding relation corresponding with described unique identification information；
If so, from described memorizer, obtain described corresponding relation；
Otherwise, control first terminal and enter calibration mode.
Method the most according to claim 1, it is characterised in that described step: control first terminal enter calibration mode it
After, also include:
Start sonic detection function, obtain current time, current time is sent the time as sound wave, is encoded into detection sound wave,
Sent by sound wave mode；
Obtained the acoustic transit time of described detection sound wave from the second terminal by short-distance wireless communication；Described detection sound wave
Acoustic transit time is that the second terminal obtained according to the time and described sound wave transmission Time Calculation that receive described detection sound wave
?；
Acoustic transit time and the transmission speed of sound wave according to described detection sound wave calculate acquisition and set up short-distance wireless communication
Distance between the first terminal and the second terminal that connect；
Close sonic detection function.
Method the most according to claim 2, it is characterised in that described step: by short-distance wireless communication from second eventually
After end obtains the acoustic transit time of described detection sound wave, also include: obtain described in when receiving described acoustic transit time
The wireless signal strength that short-distance wireless communication connects；
Described step: set up the corresponding relation of the wireless signal strength that described distance is connected with described short-distance wireless communication；Tool
Body includes:
Strong with the wireless signal that short-distance wireless communication described when receiving described acoustic transit time is connected according to described distance
Degree generates an associated data files, is stored in described memorizer；
Judge whether the quantity of the associated data files in described memorizer is less than the amount threshold preset；
If so, sending the second warning, prompting user moves first terminal and/or the position of the second terminal；
Otherwise, set up, according to the associated data files of storage, the wireless signal that described distance is connected with described short-distance wireless communication
The corresponding relation of intensity, is stored in described corresponding relation in described memorizer, and controls first terminal and exit calibration mode.
Method the most according to claim 3, it is characterised in that described step: send the second warning, prompting user moves the
After the position of one terminal and/or the second terminal, also include: detect whether that receiving control first terminal starts sonic detection in real time
The switch controlling signal of function；
If so, it is back to described step: start sonic detection function, obtains current time, current time is sent as sound wave
Time, it is encoded into detection sound wave, is sent by sound wave mode；
Otherwise, continue to detect whether to receive the switch controlling signal controlling first terminal startup sonic detection function.
Method the most according to claim 4, it is characterised in that the acoustic transit time of described detection sound wave is the second terminal
Send Time Calculation according to the time and described sound wave receiving described detection sound wave to obtain, particularly as follows:
Second terminal detects whether to receive the described detection sound wave that first terminal sends in real time；
If it is not, the second terminal continues to detect whether in real time to receive the described detection sound wave that first terminal sends；
If so, the second terminal obtains the time receiving described detection sound wave；Described detection sound wave is decoded by the second terminal,
The sound wave obtaining described detection sound wave sends the time；Second terminal is according to receiving the time of described detection sound wave and described sound wave
The transmission time obtains the acoustic transit time of described detection sound wave；Described sound wave is passed by the second terminal by short-distance wireless communication
The defeated time sends to first terminal.
Method the most according to claim 5, it is characterised in that described step: first terminal and the second terminal set up short distance
Before radio communication connects, also include:
Pre-set an amount threshold and an alarm distance；
Wherein, the alarm distance between alarm distance i.e. first terminal and the second terminal.
Method the most according to claim 4, it is characterised in that described step: according to the unique identification information of the second terminal
The memorizer that inquiry is local, it is judged that whether store corresponding with described unique identification information described corresponding in local memorizer
Before relation, also include:
Detect whether in real time to receive the switch controlling signal controlling first terminal entrance calibration mode；
If so, control first terminal and enter calibration mode；
Otherwise, local memorizer is inquired about according to the unique identification information of the second terminal, it is judged that whether local memorizer is deposited
Contain the described corresponding relation corresponding with described unique identification information.
Method the most as claimed in any of claims 1 to 7, it is characterised in that described step: first terminal and second
Terminal is set up short-distance wireless communication and is connected, particularly as follows:
First terminal and the second terminal are set up short-distance wireless communication by bluetooth and are connected.
9. the system of an intelligent alarm, it is characterised in that including: first terminal and the second terminal；
First terminal includes:
Numerical value processing module, under calibration mode, it is thus achieved that set up the first terminal and second of short-distance wireless communication connection eventually
Distance between end；It is additionally operable to set up described distance pass corresponding with the wireless signal strength that described short-distance wireless communication connects
System；It is additionally operable to according to described corresponding relation, it is thus achieved that the wireless signal strength alarm threshold value that default alarm distance is corresponding；
First alarm module, after being used for exiting calibration mode, if the wireless signal strength obtained is less than described wireless signal strength
Alarm threshold value, sends the first warning；
First terminal also includes wireless signal strength acquisition module, after being used for exiting calibration mode, obtains described short distance in real time
The wireless signal strength that radio communication connects；
Described first alarm module is additionally operable to judge whether the wireless signal strength obtained reports to the police less than described wireless signal strength
Threshold value；If so, the first warning is sent；Otherwise, do not send the first warning, continue to obtain described short-distance wireless communication in real time and connect
Wireless signal strength；
First terminal also includes the first communication connection module and memorizer；
Described first communication connection module is connected for setting up short-distance wireless communication with the second terminal；
Described numerical value processing module is additionally operable to obtain the unique identification information of the second terminal；
Whether described numerical value processing module is additionally operable to judge to store in described memorizer corresponding with described unique identification information
Described corresponding relation；If so, from described memorizer, obtain described corresponding relation；Otherwise, control first terminal and enter calibrating die
Formula.
System the most according to claim 9, it is characterised in that first terminal also includes the first clock module and the first sound
Ripple transceiver module；
A described clock module obtains current time in real time；
Described first sound wave transceiver module is used for starting sonic detection function, obtains current time, using current time as sound wave
The transmission time, it is encoded into detection sound wave, is sent by sound wave mode；
Described numerical value processing module is additionally operable to be obtained from the second terminal the sound wave of described detection sound wave by short-distance wireless communication
The transmission time；The acoustic transit time of described detection sound wave be the second terminal according to receive described detection sound wave time and
Described sound wave sends Time Calculation and obtains；
Described numerical value processing module is additionally operable to the transmission speed of the acoustic transit time according to described detection sound wave and sound wave and calculates
Obtain the distance set up between first terminal and the second terminal that short-distance wireless communication connects；
Described numerical value processing module is additionally operable to after obtaining described distance, sends closedown sound to described first sound wave transceiver module
The control signal of ripple detection function；
Described first sound wave transceiver module is additionally operable in the closedown sonic detection function receiving the transmission of described numerical value processing module
After control signal, close sonic detection function.
11. systems according to claim 10, it is characterised in that described wireless signal strength acquisition module is additionally operable to obtain
Receive the wireless signal strength that during described acoustic transit time, described short-distance wireless communication connects；
Described numerical value processing module be additionally operable to according to described distance and described short distance when receiving described acoustic transit time without
The wireless signal strength of line communication connection generates an associated data files, is stored in described memorizer；
Described numerical value processing module is additionally operable to judge that the quantity of the associated data files in described memorizer is whether less than presetting
Amount threshold；If so, the second alarm control signal is sent to described first alarm module；Otherwise, according to the associated data of storage
The corresponding relation of the wireless signal strength that described distance is connected set up with described short-distance wireless communication by file, by described corresponding pass
It is stored in described memorizer, and controls first terminal and exit calibration mode；
Described first alarm module is additionally operable to when receiving described second alarm control signal, sends the second warning, points out user
Mobile first terminal and/or the position of the second terminal.
12. systems according to claim 11, it is characterised in that first terminal also includes controlling switch；Described control is opened
Close the functional keys including starting sonic detection function, after described first alarm module sends the second warning, if detecting
The functional keys of startup sonic detection function is clicked or touch-control comes into force, and sends control first to described first sound wave transceiver module
Terminal starts the switch controlling signal of sonic detection function；
Described first sound wave transceiver module is additionally operable to detect whether in real time to receive control first terminal startup sonic detection function
Switch controlling signal, if so, starts sonic detection function, obtains current time, as sound wave, current time is sent the time, compile
Code becomes detection sound wave, is sent by sound wave mode；Otherwise, continue to detect whether that receiving control first terminal starts sound wave inspection
The switch controlling signal of brake.
13. systems according to claim 12, it is characterised in that the second terminal include the second communication connection module, second
Clock module, acoustic transit time acquisition module, the second sound wave transceiver module:
Described second communication connection module is connected for setting up short-distance wireless communication with first terminal；
Described second clock module obtains the current time in real time；
Described second sound wave transceiver module is for detecting whether in real time to receive the described detection sound wave that first terminal sends；If
No, continue to detect whether to receive the described detection sound wave that first terminal sends；If so, notify that described acoustic transit time obtains
Module obtains current time from described second clock module, and the i.e. second terminal receives the time of described detection sound wave；
Described second sound wave transceiver module is additionally operable to be decoded described detection sound wave, it is thus achieved that the sound wave of described detection sound wave is sent out
Send the time；
Described acoustic transit time acquisition module for from described second clock module obtain receive described detection sound wave time
Between and from described second sound wave transceiver module obtain described detection sound wave sound wave send the time；It is additionally operable to according to receiving institute
State time and the described sound wave of detection sound wave to send the time and obtain the acoustic transit time of described detection sound wave；It is additionally operable to by short
Described acoustic transit time is sent to first terminal by distance wireless communication.
14. systems according to claim 13, it is characterised in that first terminal also includes threshold setting module, for pre-
One amount threshold and an alarm distance are first set；
Wherein, the alarm distance between described alarm distance i.e. first terminal and the second terminal.
15. systems according to claim 12, it is characterised in that described control switch also includes the merit starting calibration mode
Energy button, if for detecting that the functional keys starting calibration mode is clicked or touch-control comes into force, to described numerical value processing module
Send the switch controlling signal controlling first terminal entrance calibration mode；
Described numerical value processing module is additionally operable to detect whether in real time to receive the on-off control controlling first terminal entrance calibration mode
Signal；If so, control first terminal and enter calibration mode；Otherwise, this locality is inquired about according to the unique identification information of the second terminal
Memorizer, it is judged that whether store the described corresponding relation corresponding with described unique identification information in local memorizer.
16. according to the system described in any one in claim 9 to 15, it is characterised in that described first communication connection module
It is Bluetooth function module with described second communication connection module；First terminal and the second terminal set up short-distance wireless by bluetooth
Communication connection.
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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 |
| CN105162953B (en) * | 2015-07-28 | 2020-07-10 | 惠州Tcl移动通信有限公司 | Terminal monitoring method and system |
| CN107288424B (en) * | 2016-03-30 | 2019-05-17 | 比亚迪股份有限公司 | Generate the method, apparatus and Intelligent key of prompting message |
| CN105869348A (en) * | 2016-04-15 | 2016-08-17 | 北京小米移动软件有限公司 | Alarming method, alarming device and monitoring equipment |
| CN106530641A (en) * | 2016-12-22 | 2017-03-22 | 武汉道森媒体股份有限公司 | Intelligent anti-lost device, working method thereof and intelligent anti-lost system |
| CN108881603A (en) * | 2017-05-15 | 2018-11-23 | 环达电脑(上海)有限公司 | Method is reported the loss between wearable device and handheld device |
| KR102483328B1 (en) * | 2017-11-13 | 2022-12-30 | 삼성전자주식회사 | Distance measureing method among a plurality of electronic apparatus and electronic apparatus thereof |
| CN110164105B (en) * | 2018-03-07 | 2020-11-10 | 义乌市凡特塑料制品有限公司 | Retrieval method and system for intelligent jewelry |
| CN108427451B (en) * | 2018-03-29 | 2021-01-12 | 广州视源电子科技股份有限公司 | Temperature adjusting method, device, equipment, system and computer readable storage medium |
| CN109345698A (en) * | 2018-09-10 | 2019-02-15 | 深圳蓝贝科技有限公司 | Safety detection device and automatic vending machine based on bluetooth |
| CN110736993A (en) * | 2019-10-31 | 2020-01-31 | 重庆交通大学 | ultrasonic positioning system and method for indoor multi-target positioning |
| CN111751786B (en) * | 2020-07-01 | 2023-06-30 | 北京小米移动软件有限公司 | Acoustic wave measurement method, acoustic wave measurement device, acoustic wave measurement equipment and storage medium |
| CN112019283A (en) * | 2020-08-19 | 2020-12-01 | 广东智能精灵科技有限公司 | Method, device and system for identifying group aggregation |
| CN113349787B (en) * | 2021-06-07 | 2022-10-21 | 蔡胜男 | Wireless electrocardio monitoring equipment |
| CN115695633B (en) * | 2021-07-23 | 2024-04-23 | 上海哔哩哔哩科技有限公司 | Multi-terminal cooperative operation method and device |
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| CN102842197A (en) * | 2011-06-24 | 2012-12-26 | 深圳中兴力维技术有限公司 | Alarming method, device and system |
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| CN104038300A (en) * | 2014-06-28 | 2014-09-10 | 青岛歌尔声学科技有限公司 | Method, device and system for preventing mobile terminal from being lost |
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