CN103581821A - Ranging method and ranging device - Google Patents
Ranging method and ranging device Download PDFInfo
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- CN103581821A CN103581821A CN201210251022.6A CN201210251022A CN103581821A CN 103581821 A CN103581821 A CN 103581821A CN 201210251022 A CN201210251022 A CN 201210251022A CN 103581821 A CN103581821 A CN 103581821A
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Abstract
The invention discloses a ranging method and a ranging device. The ranging method comprises the following steps: a first mobile terminal receives a signal, set as a hot point, of a second mobile terminal; and the first mobile terminal acquires a first distance between the first mobile terminal and the second mobile terminal according to the signal strength of the received signal. With the ranging method and the ranging device, the problem that mobile terminals are not fully functional in the related technology is solved, locating operation under the situation in which an external network cannot be received is realized, and the user experience is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of distance-finding method and device.
Background technology
Along with the raising of people's living standard, self-driving travel, travel on bike, the trip of forming a team etc. enriching people's free life, and increasing people participates, and in daily life, occupies more and more consequence.Meanwhile, along with the development of mobile communications industry, especially the third generation (3rd Generation, referred to as 3G), the 4th generation (4th Generation, referred to as 4G) communication is universal, and intelligent mobile terminal (for example, smart mobile phone) also enters the stage of popularization.
Yet, sometimes there will be an awkward phenomenon: donkey friends enter mountain tourism, and people does not below catch up with the people who leads the way, make a phone call also to describe unclear own residing position, and generally, enter mountain by often not receiving from the network signal of base station or satellite-signal etc.Be exactly in addition, often occur behind mountain, can not find the road of coming out of retirement and taking up an official post, thus cause getting lost, 3, the generation of the situation of needs rescue.Donkey friend or university student enter mountain tourism, the event of going astray from the group and maybe cannot return, and the end that appears in the newspapers repeatly, and in their hand, substantially have intelligent mobile terminal, but could not give play to larger effect, be really " no scope for displaying one's abilities ".
For the perfect not problem of the function of mobile terminal in correlation technique, effective solution is not yet proposed at present.
Summary of the invention
For the perfect not problem of the function of mobile terminal in correlation technique, the invention provides a kind of distance-finding method and device, at least to address the above problem.
According to an aspect of the present invention, provide a kind of distance-finding method, having comprised: the first mobile terminal has received the signal of the second mobile terminal that is set to focus; The signal strength signal intensity of the described signal that described the first mobile terminal basis receives is obtained the first distance with described the second mobile terminal.
Preferably, described the first mobile terminal obtains with the first distance of described the second mobile terminal and comprises according to the signal strength signal intensity of the described signal receiving: described the first mobile terminal, according to the signal strength signal intensity of the WiFi signal receiving, obtains described the first distance.
Preferably, described the first mobile terminal, according to the signal strength signal intensity of the described WiFi signal receiving, obtains described the first distance and comprises: the mapping relations of described the first acquisition for mobile terminal physical distance and signal strength signal intensity; Described the first mobile terminal, according to the physical distance of the signal strength signal intensity of the WiFi signal receiving correspondence in described mapping relations, obtains described the first distance.
Preferably, the mapping relations of described the first acquisition for mobile terminal physical distance and signal strength signal intensity comprise: described the first mobile terminal carries out decile by the difference of the signal strength signal intensity of the adjacent test point of predetermined space according to described predetermined space; Described the first mobile terminal obtains the mapping relations of physical distance and described signal strength signal intensity according to the result of decile.
Preferably, obtain the first distance with described the second mobile terminal according to the signal strength signal intensity of the described signal that receives at described the first mobile terminal after, also comprise: in described the first distance, be less than the certain threshold value of default second distance, and/or, described the first distance is greater than in the situation of described second distance, and described the first mobile terminal is reported to the police.
Preferably, described the first mobile terminal is reported to the police and is comprised: described the first mobile terminal playing audio warning.
Preferably, after described the first mobile terminal is reported to the police, also comprise: the mobile terminal in described the second mobile terminal place network except described the first mobile terminal is reported to the police.
Preferably, mobile terminal in described the second mobile terminal place network except described the first mobile terminal is reported to the police and is comprised: in the situation that described the first distance is less than the certain threshold value of described second distance, the mobile terminal in described the second mobile terminal place network except described the first mobile terminal carries out flashing light alarm; In described the first distance be greater than described second distance in the situation that, the mobile terminal playing audio warning in described the second mobile terminal place network except described the first mobile terminal and carry out flashing light alarm.
Preferably, obtain the first distance with described the second mobile terminal according to the signal strength signal intensity of the described signal that receives at described the first mobile terminal after, also comprise: in the situation that described the first distance increases continuously in appointment duration, described the first mobile terminal is reported to the police, and in described the second mobile terminal place network, the mobile terminal except described the first mobile terminal is reported to the police.
Preferably, described method also comprises: in the situation that described the first mobile terminal cannot receive described signal, described the first mobile terminal is reported to the police, and in described the second mobile terminal place network, the mobile terminal except described the first mobile terminal is reported to the police.
According to a further aspect in the invention, provide a kind of range unit, be arranged in the first mobile terminal, having comprised: receiver module, for receiving the signal of the second mobile terminal that is set to focus; Acquisition module, the signal strength signal intensity of the described signal receiving for basis is obtained the first distance with described the second mobile terminal.
By the present invention, adopt the first mobile terminal to receive the signal of the second mobile terminal that is set to focus; The first mobile terminal obtains the mode with the first distance of the second mobile terminal according to the signal strength signal intensity of the signal that receives, solved the perfect not problem of function of mobile terminal in correlation technique, realize the positioning action in the situation that not receiving extraneous network, improved user experience.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the distance-finding method of the embodiment of the present invention;
Fig. 2 is according to the structured flowchart of the range unit of the embodiment of the present invention;
Fig. 3 is the execution schematic flow sheet according to the embodiment of the present invention two.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
A kind of distance-finding method is provided in the present embodiment, and Fig. 1 is according to the flow chart of the distance-finding method of the embodiment of the present invention, and as shown in Figure 1, the method comprises the steps:
Step S102, the first mobile terminal receives the signal of the second mobile terminal that is set to focus;
Step S104, the signal strength signal intensity of the signal that the first mobile terminal basis receives is obtained the first distance with the second mobile terminal.
The present embodiment passes through above-mentioned steps, the first mobile terminal by the signal strength signal intensity of the focus signal that receives, obtain and focus between distance, thereby can be in the situation that not receiving extraneous network, by with MANET in the signal strength signal intensity of focus, obtain and focus between distance, thereby realize the mutual location between team, solved the perfect not problem of function of mobile terminal in correlation technique, realize the positioning action in the situation that not receiving extraneous network, improved user experience.
The mode of MANET can have multiple, for example, and can be by the mode of bluetooth.As a kind of preferred implementation, the signal strength signal intensity of the Wireless Fidelity that also can set up by focus (Wireless Fidelity, referred to as WiFi) network obtain and focus between distance.Preferably, the first mobile terminal can, according to the signal strength signal intensity of the WiFi signal receiving, get above-mentioned the first distance.
For example, first a safety can be set distance (being second distance) is set, and detection arranges the signal strength signal intensity of distance in safety, and using this threshold value as signal strength signal intensity, the WiFi signal strength signal intensity receiving at the first mobile terminal is less than safety when the signal strength signal intensity of distance is set, and thinks that distance between the first mobile terminal and WiFi focus (first apart from) has surpassed this distance is set safely.As a kind of preferred implementation, the first mobile terminal can also obtain the mapping relations of physical distance and signal strength signal intensity, and obtains this first distance according to physical distance corresponding to signal strength signal intensity in these mapping relations.It is first higher apart from accuracy that this mode gets.
For example, the mode of obtaining mapping relations can be: the first mobile terminal carries out decile by the difference of the signal strength signal intensity of the adjacent test point of predetermined space according to predetermined space, such as the distance of every 1 meter or 0.5 meter can a corresponding signal strength values, then according to the result of this decile, obtain the mapping relations of the attenuation degree of physical distance and signal strength signal intensity, the first mobile terminal can be by these mapping relations of signal strength values substitution of current acquisition, thereby obtain the distance (i.e. the first distance) between this first mobile terminal and WiFi focus.
As a kind of preferred implementation, after getting the distance of first between this first mobile terminal and focus, if this first distance arranges comparatively approaching apart from (being second distance) with default safety, the difference that for example second distance deducts the first distance is less than certain threshold value, illustrate that the first mobile terminal is about to exceed the safe distance that focus can cover, in this case, this first mobile terminal can be reported to the police, the mode of reporting to the police can be undertaken by playing the mode of alarm sound, with this, remind the user that this first mobile terminal is corresponding will catch up with fast large unit.Simultaneously, preferably, the corresponding mobile terminal of other members in the MANET at this focus place also can be reported to the police, and because the first mobile terminal exceeds safety, distance is not set, so the corresponding mobile terminal of other members indicator collet corresponding to the first mobile terminal that only need to glimmer.
In like manner, if this first distance surpasses default safety distance is set, illustrate that the first mobile terminal has exceeded the safe distance that WiFi focus can cover, lossing signal likely at any time, in this case, this first mobile terminal can be reported to the police, and the mode of warning can be undertaken by playing the mode of alarm sound, with this, reminds the user that this first mobile terminal is corresponding will catch up with fast large unit.Meanwhile, preferably, the corresponding mobile terminal of other members in the MANET at this focus place also can be reported to the police.Because the first mobile terminal has exceeded safety, distance is set, so the corresponding mobile terminal of other members can, by indicator collet corresponding to flicker the first mobile terminal, be play alarm sound simultaneously and report to the police.
In like manner, if the first mobile terminal cannot receive in the situation of the signal that the second mobile terminal sends, this first mobile terminal can be reported to the police, the mode of reporting to the police can be undertaken by playing the mode of alarm sound, with this, reminds the user that this first mobile terminal is corresponding will catch up with fast large unit.Meanwhile, preferably, this focus also cannot receive the signal of this first mobile terminal, so the corresponding mobile terminal of other members in the MANET at this focus place also can be reported to the police.Because the first mobile terminal has exceeded safety, distance is set, so the corresponding mobile terminal of other members can, by indicator collet corresponding to flicker the first mobile terminal, be play alarm sound simultaneously and report to the police.
In addition, if find that the first distance increases continuously within a period of time, illustrate that this first mobile terminal likely advances towards the direction contrary with focus direct of travel, therefore in this case, this first mobile terminal can be reported to the police, the mode of reporting to the police can be undertaken by playing the mode of alarm sound, with this, reminds the user that this first mobile terminal is corresponding will catch up with fast large unit.Simultaneously, preferably, the corresponding mobile terminal of other members in the MANET at this focus place also can be reported to the police, and because the first mobile terminal exceeds safety, distance is not set, so the corresponding mobile terminal of other members indicator collet corresponding to the first mobile terminal that only need to glimmer.
Corresponding to said method, a kind of range unit is also provided in the present embodiment, can be arranged in above-mentioned the first mobile terminal, this device is used for realizing above-described embodiment and preferred implementation, has carried out repeating no more of explanation.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described device of following examples is preferably realized with software, hardware, or the realization of the combination of software and hardware also may and be conceived.
Fig. 2 is according to the structured flowchart of the range unit of the embodiment of the present invention, and as shown in Figure 2, this device comprises: receiver module 22 and acquisition module 24, be elaborated to modules below.
Receiver module 22, for receiving the signal of the second mobile terminal that is set to focus; Acquisition module 24, is connected with receiver module 22, and the signal strength signal intensity of the signal receiving for basis is obtained the first distance with the second mobile terminal.
The present embodiment is by above-mentioned module, the signal strength signal intensity of the focus signal that the first mobile terminal receives by receiver module 22, with acquisition module 24 obtain and focus between distance, thereby can be in the situation that not receiving extraneous network, by with MANET in the signal strength signal intensity of focus, obtain and focus between distance, thereby realize the mutual location between team, solved the perfect not problem of function of mobile terminal in correlation technique, realize the positioning action in the situation that not receiving extraneous network, improved user experience.
Below in conjunction with preferred embodiment, describe, following examples combine above-described embodiment and preferred implementation thereof.
Embodiment mono-
In this preferred embodiment, a kind of range estimation method based on ad-hoc network is provided, the method be take the Ad Hoc of hand-held intelligent terminal and range estimation method and is described as example.Be specially by client, create the network based on wifi, the decay by wifi signal calculates relative physical distance, solves the area that cannot cover in wireless base station, cannot determine the method for member's positional information.
The core based on calculate the method for relative physical distance from building network providing in this preferred embodiment is, utilizes the decay of wifi signal to calculate relative physical distance and the safety alarming method based on this distance.
Utilize the decay of signal to calculate relative physical distance concrete grammar can be: first, a selected station terminal A equipment is set up hotspot, selected another terminal B equipment be set up the wireless connections with this focus simultaneously.After successful connection is set up, in physical distance, between 100,5-10 test point is set.A equipment holding position is constant, mobile B equipment.In each test point position, manually this test lead of input is apart from the physical distance of A equipment, system can record simultaneously this point apart from A equipment the intensity level of signal of wireless wifi, after completing the distance of all test points and the typing work of signal strength signal intensity, system accounting is calculated the mapping relations of physical distance and signal strength signal intensity.Circular is, by the signal strength difference between adjacent test point, according to the physical distance of point-to-point transmission, to carry out decile.The result of decile is, the distance of 1 meter or 0.5 meter can a corresponding signal strength values.The corresponding method of calculating approximate distance of the attenuation degree of signal and distance, its object is not for the accurate distance of calculating, but attenuation degree by relative signal judges that member in ad-hoc network is whether in safe distance, if exceed safe distance, can send a warning, remind and have personnel to fall behind.
Safety alarming method based on this distance, can be divided into following several situation:
Situation one: when certain member be about to surmount safety arrange apart from time, this member's SmartClient can be play audio warning, simultaneously other members' SmartClient represents that this member's indicator collet can glimmer, but does not play sound.
Situation two: when certain member's direct of travel and other members' direct of travel is contrary, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer simultaneously, but does not play sound.
Situation three: in the time that certain member is greater than safe distance apart from other members' distance, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Situation four: when certain member's blackout, this member's SmartClient can be play audio warning, other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Embodiment bis-
In this preferred embodiment, by installation procedure in SmartClient, realize the record of position, direction coordinate information, path of travel information, and the information of record is synchronized to other members in network, other members can be according to information, by looking for its path to advance.Or the path according to record is back to starting point.Fig. 3 is the execution schematic flow sheet according to the embodiment of the present invention two, and as shown in Figure 3, the execution flow process of this preferred embodiment can comprise the steps:
Step S302 first, need to install client software in all intelligent terminals that need building network.
This client software is achieved as follows function:
Function one: the interpolation function of setting up ad-hoc network and member.Thereby realize the foundation at networking, and group member's interpolation function.
Function two: the recording of informations such as positional information, direction coordinate information, path of travel information.Relevant information is recorded into background data base, and this information can be synchronized on the intelligent terminal of other members in group, and other members' information can be presented on the UI interface of this terminal simultaneously, and other group members' location coordinate information is very clear.This information is used to record return route simultaneously.If cannot arrive destination, can return according to the former road of circuit of record, increase safety guarantee.
Function three: the information of record and group member's synchronizing function.Owing to entering the place that travel in mountain or base station network cannot cover, the information of cannot carrying out is synchronous, and wifi network can be brought into play its effect in this case.The information such as positional information, direction coordinate information, path of travel information can be undertaken synchronously by wifi network, and the information of SmartClient record can be connected and be carried out synchronously by the wifi of certainly setting up.
Function four: the encryption function of synchronizing information.This function is responsible for the encryption of communication data, prevents information leakage.
Function five: alarm arranges function.Which kind of situation is this function, by synchronous group member's information, determine in and can give the alarm, the setting of alert report presentation mode.The system setting that can give the alarm in following situation:
Situation one: when certain member be about to surmount safety arrange apart from time, this member's SmartClient can be play audio warning, simultaneously other members' SmartClient represents that this member's indicator collet can glimmer, but does not play sound.
Situation two: when certain member's direct of travel and other members' direct of travel is contrary, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer simultaneously, but does not play sound.
Situation three: in the time that certain member is greater than safe distance apart from other members' distance, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Situation four: when certain member's blackout, this member's SmartClient can be play audio warning, other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Step S304, secondly, after installing software, need to carry out necessary setting, and what the first step will be done is exactly to set up network, and all member compositions add the network of foundation.
Step S306, the wireless network of mentioning in this preferred embodiment is by wifi building network from construction method, due to the communication distance restriction of wifi network, the ad-hoc network that is applicable to advance on foot, the information of SmartClient record can be connected and be carried out synchronously by wifi.After network construction success, carry out necessary setting, the project of setting has the time interval of synchrodata, is defaulted as 5 seconds, can arbitrarily arrange, but suggestion does not arrange oversize lock in time.After setting completes wheel synchronization type, if carried out before safe distance calibration setting, can skips steps S308, directly enter step S310.
Step S308, safe distance setting, object is the safe distance that certain member and last position member are set, in the time being greater than safe distance, in group, all members receive warning information.About safe distance be to arrange, because being uses wifi mode building network, and because the precision of GPS is not too high, so, can carry out analog computation by the attenuation degree of wifi signal, this just need to carry out the calibration that wifi signal attenuation degree is mated with distance.Concrete mode, for several test points to be set within the scope of 100 meters, is inputted the distance of this point, carries out matched record with the value of wifi signal, and client-side program can carry out signal halves and apart from decile, calculates distance roughly and the corresponding relation of signal.
Step S310, after the work of setting completes, can enter operating state, the program of installing in intelligent terminal, can be on backstage by the relevant position data message of oneself (record of existing position, direction coordinate information, path of travel information), in the time of each appointment (be defaulted as 5 seconds, can be configured), carry out record.
Step S312, the position data that step S310 is recorded is stored.
Step S314, when step S310 records position data, can also be synchronized to the information of these records other members in group.In each intelligent terminal, in visual mode, present other members' coordinate information, and every member's routing information.
Step S316, has judged whether that member triggers alert consitions, if so, enters step S318; Otherwise enter step S310.
Step S318, when a certain position member departs from other members' course, system sends a warning to all members.The presentation mode of alarm and strategy are as follows:
Situation one: when certain member be about to surmount safety arrange apart from time, this member's SmartClient can be play audio warning, simultaneously other members' SmartClient represents that this member's indicator collet can glimmer, but does not play sound.
Situation two: when certain member's direct of travel and other members' direct of travel is contrary, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer simultaneously, but does not play sound.
Situation three: in the time that certain member is greater than safe distance apart from other members' distance, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Situation four: when certain member's blackout, this member's SmartClient can be play audio warning, other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Finally, can finish this client software.
To achieve these goals, this preferred embodiment adopts following technical scheme:
Step 1: the matching used client software of terminal, can real time record position, the information of the record of direction coordinate information, travel path, the information of record can be stored in the database file of terminal.The information of record is by two effects: one, the information of record can be synchronized in same group membership's intelligent terminal, is used to present to other members about oneself travel line and positional information.It two is used as the input parameter of alarm function, if reach the condition of alarm by calculating resulting information, all members' intelligent terminal, can show or play warning information according to default rule.With the matching used client software of intelligent terminal, can carry out rough calculating distance by the attenuation degree of signal.Attenuation degree by wifi signal carries out analog computation distance, this just need to carry out the calibration that wifi signal attenuation degree is mated with distance, utilize the decay of signal to calculate relative physical distance concrete grammar to be: first, a selected station terminal A equipment is set up hotspot, simultaneously the wireless connections of selected another terminal B equipment foundation and this focus.After successful connection is set up, in physical distance, between 100,5-10 test point is set.A equipment holding position is constant, mobile B equipment.In each test point position, manually this test lead of input is apart from the physical distance of A equipment, system can record simultaneously this point apart from A equipment the intensity level of signal of wireless wifi, after completing the distance of all test points and the typing work of signal strength signal intensity, system accounting is calculated the mapping relations of physical distance and signal strength signal intensity.Circular is, by the signal strength difference between adjacent test point, according to the physical distance of point-to-point transmission, carries out decile, and the result of decile is that the distance of 1 meter or 0.5 meter can a corresponding signal strength values.
Step 2: hold matching used client software, present on group member's intelligent terminal or play warning information by the Alert Policy setting in advance.Specific strategy is:
Situation one: when certain member be about to surmount safety arrange apart from time, this member's SmartClient can be play audio warning, simultaneously other members' SmartClient represents that this member's indicator collet can glimmer, but does not play sound.
Situation two: when certain member's direct of travel and other members' direct of travel is contrary, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer simultaneously, but does not play sound.
Situation three: in the time that certain member is greater than safe distance apart from other members' distance, this member's SmartClient can be play audio warning, and other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
Situation four: when certain member's blackout, this member's SmartClient can be play audio warning, other members' SmartClient represents that this member's indicator collet can glimmer, and plays sound simultaneously simultaneously.
The matching used client software of intelligent terminal, can automatic synchronization global positioning system (Global Positioning System, referred to as GPS) position, the direction coordinate information of record, the information of the record of travel path etc. to other members in group.Client can be carried out the record of data as software every the time of setting, acquiescence can be 5 seconds, and this information is synchronized to other members in group simultaneously.
In another embodiment, also provide a kind of software, the technical scheme that this software is described for carrying out above-described embodiment and preferred embodiment.
In another embodiment, also provide a kind of storage medium, stored above-mentioned software in this storage medium, this storage medium includes but not limited to CD, floppy disk, hard disk, scratch pad memory etc.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (11)
1. a distance-finding method, is characterized in that, comprising:
The first mobile terminal receives the signal of the second mobile terminal that is set to focus;
The signal strength signal intensity of the described signal that described the first mobile terminal basis receives is obtained the first distance with described the second mobile terminal.
2. method according to claim 1, is characterized in that, described the first mobile terminal obtains with the first distance of described the second mobile terminal and comprises according to the signal strength signal intensity of the described signal receiving:
Described the first mobile terminal, according to the signal strength signal intensity of the Wireless Fidelity WiFi signal receiving, obtains described the first distance.
3. method according to claim 2, is characterized in that, described the first mobile terminal, according to the signal strength signal intensity of the described WiFi signal receiving, obtains described the first distance and comprises:
The mapping relations of described the first acquisition for mobile terminal physical distance and signal strength signal intensity;
Described the first mobile terminal, according to the physical distance of the signal strength signal intensity of the WiFi signal receiving correspondence in described mapping relations, obtains described the first distance.
4. method according to claim 3, is characterized in that, the mapping relations of described the first acquisition for mobile terminal physical distance and signal strength signal intensity comprise:
Described the first mobile terminal carries out decile by the difference of the signal strength signal intensity of the adjacent test point of predetermined space according to described predetermined space;
Described the first mobile terminal obtains the mapping relations of physical distance and described signal strength signal intensity according to the result of decile.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, obtain the first distance with described the second mobile terminal according to the signal strength signal intensity of the described signal that receives at described the first mobile terminal after, also comprise:
In described the first distance, be less than the certain threshold value of default second distance, and/or described the first distance is greater than in the situation of described second distance, described the first mobile terminal is reported to the police.
6. method according to claim 5, is characterized in that, described the first mobile terminal is reported to the police and comprised:
Described the first mobile terminal playing audio warning.
7. method according to claim 6, is characterized in that, after described the first mobile terminal is reported to the police, also comprises:
Mobile terminal in described the second mobile terminal place network except described the first mobile terminal is reported to the police.
8. method according to claim 7, is characterized in that, the mobile terminal in described the second mobile terminal place network except described the first mobile terminal is reported to the police and comprised:
In the situation that described the first distance is less than the certain threshold value of described second distance, the mobile terminal in described the second mobile terminal place network except described the first mobile terminal carries out flashing light alarm;
In described the first distance be greater than described second distance in the situation that, the mobile terminal playing audio warning in described the second mobile terminal place network except described the first mobile terminal and carry out flashing light alarm.
9. according to the method described in any one in claim 1 to 8, it is characterized in that, obtain the first distance with described the second mobile terminal according to the signal strength signal intensity of the described signal that receives at described the first mobile terminal after, also comprise:
In the situation that described the first distance increases continuously in appointment duration, described the first mobile terminal is reported to the police, and in described the second mobile terminal place network, the mobile terminal except described the first mobile terminal is reported to the police.
10. according to the method described in claim 1 to 8, it is characterized in that, described method also comprises:
In the situation that described the first mobile terminal cannot receive described signal, described the first mobile terminal is reported to the police, and in described the second mobile terminal place network, the mobile terminal except described the first mobile terminal is reported to the police.
11. 1 kinds of range units, is characterized in that, are arranged in the first mobile terminal, comprising:
Receiver module, for receiving the signal of the second mobile terminal that is set to focus;
Acquisition module, the signal strength signal intensity of the described signal receiving for basis is obtained the first distance with described the second mobile terminal.
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| CN104144415A (en) * | 2014-07-10 | 2014-11-12 | 深圳市螺光科技有限公司 | Method for connecting WiFi access point and mobile communication terminal |
| CN104317540A (en) * | 2014-09-30 | 2015-01-28 | 广州三星通信技术研究有限公司 | Method and device for displaying information magnitude of associated terminals on terminal |
| CN104582176A (en) * | 2014-12-30 | 2015-04-29 | 欧普照明股份有限公司 | Wireless lighting control system and wireless lighting control method thereof |
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| CN108834084A (en) * | 2018-06-20 | 2018-11-16 | 上海锐益信息技术有限公司 | Speech output method, device and voice terminal in scene of travelling |
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| CN104317540A (en) * | 2014-09-30 | 2015-01-28 | 广州三星通信技术研究有限公司 | Method and device for displaying information magnitude of associated terminals on terminal |
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| CN107170298A (en) * | 2016-03-07 | 2017-09-15 | 群光电子股份有限公司 | The collision avoidance system and its method of unmanned vehicle |
| CN105956949A (en) * | 2016-04-18 | 2016-09-21 | 中国地质大学（武汉） | Visitor receiving management method, visitor management method and tour guide end equipment |
| CN106131957B (en) * | 2016-07-15 | 2019-11-08 | 深圳市创荣发电子有限公司 | A kind of method and system carrying out range measurement by Wi-Fi signal strength |
| CN106131957A (en) * | 2016-07-15 | 2016-11-16 | 深圳市创荣发电子有限公司 | A kind of method and system being carried out range measurement by Wi Fi signal intensity |
| CN106443693A (en) * | 2016-09-26 | 2017-02-22 | 深圳前海零距物联网科技有限公司 | Cycling equipment pre-warning method and system |
| CN106781250A (en) * | 2016-12-25 | 2017-05-31 | 佛山潮伊汇服装有限公司 | Dynamic distance monitoring method and terminal |
| CN106851563A (en) * | 2017-01-10 | 2017-06-13 | 西安蜂语信息科技有限公司 | Location-based information broadcasting method, first terminal and second terminal |
| CN106851563B (en) * | 2017-01-10 | 2020-09-15 | 西安蜂语信息科技有限公司 | Information broadcasting method based on position, first terminal and second terminal |
| CN106888440A (en) * | 2017-03-14 | 2017-06-23 | 东华大学 | A kind of emergency communication system and method based on USRP |
| CN108810158A (en) * | 2018-06-20 | 2018-11-13 | 上海锐益信息技术有限公司 | Data processing method, system and intermediate terminals in scene of travelling |
| CN108834084A (en) * | 2018-06-20 | 2018-11-16 | 上海锐益信息技术有限公司 | Speech output method, device and voice terminal in scene of travelling |
| CN109672981A (en) * | 2019-01-10 | 2019-04-23 | 联动优势电子商务有限公司 | Prevent the method and device that Team Member is discrete |
| CN110738824A (en) * | 2019-11-19 | 2020-01-31 | 深圳市荣盛智能装备有限公司 | Water area alarm method and device based on companion lines, electronic equipment and storage medium |
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