CN102348258A - Mobile terminal positioning method and device - Google Patents
Mobile terminal positioning method and device Download PDFInfo
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- CN102348258A CN102348258A CN2011103086142A CN201110308614A CN102348258A CN 102348258 A CN102348258 A CN 102348258A CN 2011103086142 A CN2011103086142 A CN 2011103086142A CN 201110308614 A CN201110308614 A CN 201110308614A CN 102348258 A CN102348258 A CN 102348258A
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Abstract
The invention discloses a mobile terminal positioning method and device. The mobile terminal positioning method comprises the following steps of: obtaining identification information of a wireless network access point (AP) near a mobile terminal to be positioned; searching corresponding AP position information according to the identification information of the AP; and determining a position of the mobile terminal to be positioned according to the searched AP position information. With the application of the technical scheme provided by the embodiment of the invention, the problem of positioning the mobile terminal without GPS (Global Position System) positioning and base station positioning conditions can be solved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of mobile terminal locating method and device.
Background technology
The portable terminal location is meant the positional information (latitude and longitude coordinates) of obtaining portable terminal through specific location technology.Traditional portable terminal location technology has two kinds: the location of a kind of GPS of being based on, another kind are based on the location of mobile base station.Wherein, the former utilizes communication satellite to position in real time in the world, has high orientation precision, but requires portable terminal to have the GPS module; The latter does not need mobile phone to have the GPS locating module, but positioning accuracy depends on the distribution of base station and the size of coverage to a great extent, and error can be very big in some cases.
Yet under many circumstances, the employed portable terminal of user possibly neither possess the condition of GPS location, does not also possess the condition of location, base station.For example; Equipment such as notebook computer, panel computer; The GPS module possibly is not installed; Perhaps down the GPS module can't operate as normal in some particular surroundings (as indoor); And this kind equipment usually can't be as mobile phone direct access mobile operator network, therefore also can't adopt the base station mode to position.
Summary of the invention
For solving the problems of the technologies described above, that the embodiment of the invention provides is a kind of (method and device), and to solve the portable terminal orientation problem under the situation that does not possess GPS location and base station location condition, technical scheme is following:
A kind of mobile terminal locating method comprises:
Obtain the identification information of the wireless network access point AP of portable terminal to be positioned near;
According to the AP identification information, the AP positional information that inquiry is corresponding;
According to the AP positional information that inquires, confirm the position of said portable terminal to be positioned.
In one embodiment of the invention, the said AP positional information corresponding with the AP identification information obtains in the following manner:
Acquisition has the identification information of AP second place information and this portable terminal of this portable terminal that portable terminal reported self of second stationkeeping ability near; Wherein, said second place information utilizes second stationkeeping ability to obtain by portable terminal;
Second place information that same portable terminal reported and AP identification information are carried out related, the second place information that portable terminal reported is confirmed as the AP positional information corresponding with the AP identification information.
In one embodiment of the invention, this method also comprises:
Under the same AP identification information situation corresponding, confirm as the AP position corresponding with the AP identification information with arriving these positions point minimum apart from sum with a plurality of second place information.
In one embodiment of the invention, the AP positional information that said basis inquires, confirm the position of said portable terminal to be positioned to comprise:
Under the situation that only inquires an AP positional information, the position of this AP is confirmed as the position of said portable terminal to be positioned.
In one embodiment of the invention, the AP positional information that said basis inquires, confirm the position of said portable terminal to be positioned to comprise:
Inquiring under the situation that is no less than two AP positional informations, confirming as the position of said portable terminal to be positioned arriving these AP positions point minimum apart from sum.
In one embodiment of the invention, near the AP identification information the said acquisition portable terminal to be positioned comprises:
Receive the Location Request that portable terminal to be positioned sends, in the said Location Request, carry near the AP identification information of said portable terminal to be positioned;
In one embodiment of the invention, said portable terminal to be positioned obtains self AP identification information on every side through signal scanning.
In one embodiment of the invention, after the position of confirming said portable terminal to be positioned, also comprise:
To confirm that the result is sent to said portable terminal to be positioned.
In one embodiment of the invention, the said AP identification information MAC Address that is AP.
In one embodiment of the invention, said second stationkeeping ability is the GPS stationkeeping ability.
The embodiment of the invention also provides a kind of portable terminal positioner, comprising:
The AP sign obtains the unit, is used to obtain the identification information of the wireless network access point AP of portable terminal to be positioned near;
Query unit is used for the identification information according to AP, the AP positional information that inquiry is corresponding;
Positioning unit is used for confirming the position of said portable terminal to be positioned according to the AP positional information that inquires.
In one embodiment of the invention, this device comprises that also the AP positional information obtains the unit, and said AP positional information obtains the unit and is used to obtain the AP positional information corresponding with the AP identification information, specifically is used for:
Acquisition has the identification information of AP second place information and this portable terminal of this portable terminal that portable terminal reported self of second stationkeeping ability near; Wherein, said second place information utilizes second stationkeeping ability to obtain by portable terminal;
Second place information that same portable terminal reported and AP identification information are carried out related, the second place information that portable terminal reported is confirmed as the AP positional information corresponding with the AP identification information.
In one embodiment of the invention, said AP positional information obtains the unit and further specifically is used for:
Under the same AP identification information situation corresponding, confirm as the AP position corresponding with the AP identification information with arriving these positions point minimum apart from sum with a plurality of second place information.
In one embodiment of the invention, said positioning unit specifically is used for:
Under the situation that only inquires an AP positional information, the position of this AP is confirmed as the position of said portable terminal to be positioned.
In one embodiment of the invention, said positioning unit specifically is used for:
Inquiring under the situation that is no less than two AP positional informations, confirming as the position of said portable terminal to be positioned arriving these AP positions point minimum apart from sum.
In one embodiment of the invention, said AP sign obtains the unit, specifically is used for:
Receive the Location Request that portable terminal to be positioned sends, in the said Location Request, carry near the AP identification information of said portable terminal to be positioned;
In one embodiment of the invention, said portable terminal to be positioned obtains self AP identification information on every side through signal scanning.
In one embodiment of the invention, this device also comprises:
Transmitting element as a result is used for definite result of the unit of said location is sent to said portable terminal to be positioned.
In one embodiment of the invention, the said AP identification information MAC Address that is AP.
In one embodiment of the invention, said second stationkeeping ability is the GPS stationkeeping ability.
The technical scheme that the embodiment of the invention provided; Utilize wireless network access point AP that user's portable terminal is positioned; Because user's portable terminal can scan the identification information (for example MAC Address) of AP around self, like this, through with the identification-information reporting of these AP to server.The AP positional information that gather through inquiry in advance the server aspect just can roughly be calculated the current location of portable terminal, thereby solves the portable terminal orientation problem under the situation that does not possess GPS location and base station location condition.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously; The accompanying drawing that describes below only is some embodiment that put down in writing among the present invention; For those of ordinary skills, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of embodiment of the invention mobile terminal locating method;
Fig. 2 a-2c is the sketch map of embodiment of the invention mobile terminal reporting positional information and AP sign;
Fig. 3 is first kind of structural representation of embodiment of the invention portable terminal positioner;
Fig. 4 is second kind of structural representation of embodiment of the invention portable terminal positioner;
Fig. 5 is the third structural representation of embodiment of the invention portable terminal positioner.
Embodiment
At first a kind of mobile terminal locating method that the embodiment of the invention provided is described, this method can may further comprise the steps:
Obtain the identification information of the wireless network access point AP of portable terminal to be positioned near;
According to the AP identification information, the AP positional information that inquiry is corresponding;
According to the AP positional information that inquires, confirm the position of said portable terminal to be positioned.
The executive agent of above-mentioned steps can be a positioner that can communicate with portable terminal to be positioned, and this device can be arranged in server apparatus.Portable terminal to be positioned in the above-mentioned steps can be equipment such as mobile phone, notebook computer, panel computer.These equipment communicate through wired or wireless mode and positioner; Wireless network access point (Acess Point around the server by utilizing portable terminal to be positioned; AP) portable terminal is positioned; Since portable terminal can scan the identification information (for example MAC Address) of AP around self; Like this, through with the identification-information reporting of these AP to server.The AP positional information that gather through inquiry in advance the server aspect just can roughly be calculated the current location of portable terminal, thereby solves the portable terminal orientation problem under the situation that does not possess GPS location and base station location condition.
In order to make those skilled in the art understand the technical scheme among the present invention better; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention describes in detail; Obviously; Described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtained should belong to the scope that the present invention protects.
Shown in Figure 1ly be the flow chart of a kind of mobile terminal locating method that the embodiment of the invention provided, this method can may further comprise the steps:
S101 obtains the identification information of the AP the portable terminal to be positioned near;
According to the scheme that the embodiment of the invention provided, server side can initiatively obtain near the AP identification information the portable terminal to be positioned, realizes the location to this portable terminal.Portable terminal to be positioned also can send Location Request to server side, and in this Location Request, carries near himself AP identification information.
For portable terminal, can scan its one or more AP signal sources on every side, and get access to the unique identification of these AP, for example MAC Address with wireless network access function.Further these AP identification informations are uploaded to server side, server side just can position portable terminal according to the AP identification information.
S102, according to the AP identification information, the AP positional information that inquiry is corresponding;
In this step, server side is inquired about and the corresponding AP positional information of AP identification information according to the AP identification information that portable terminal to be positioned reported.
Theoretically,, can manage to collect in advance the positional information of this AP, and set up the database of AP identification information one AP positional information for any AP.Consider in the practical application that the quantity of AP is more and dispersion is wider, is the collecting efficiency that improves the AP positional information, the present invention provides a kind of acquisition method of AP positional information, and this method is following:
In practical application; There are a lot of portable terminals itself to possess stationkeeping ability; For example GPS location, location, base station etc.; In order to distinguish targeting scheme provided by the present invention; In the present embodiment; This type stationkeeping ability is called " second stationkeeping ability ", the positional information of utilizing second stationkeeping ability to obtain is called " second place information ".If this Terminal Type has the ability of access of radio network again simultaneously, so, this type portable terminal just can utilize second stationkeeping ability to know self present located position when scanning the AP identification information.Portable terminal can report to server side with AP identification information and the present located positional information that scans, and like this, server side just can obtain the corresponding relation of a large amount of " near the AP sign mobile terminal locations one portable terminal ".
Further; Server side can carry out related with the AP identification information to the second place information that same portable terminal reported; That is to say,, thereby realize collection the AP positional information with the approximate position of thinking near the AP this portable terminal, portable terminal present located position.Consider the AP signal cover generally about tens meters, under the positioning accuracy demand is not very high situation, this approximate be acceptable.Certainly; The prerequisite of doing like this is that portable terminal " second stationkeeping ability " can carry out comparatively accurate localization; Therefore; Here " second stationkeeping ability " is preferably the GPS stationkeeping ability; Certainly; Under the situation that can guarantee certain positioning accuracy, " second stationkeeping ability " also can be other locate modes, and the embodiment of the invention need not carried out strictness and limited to this.
Illustrate; Shown in Fig. 2 a; Mobile terminal UE 1 with GPS stationkeeping ability; Has an access point AP1 around current can the scanning; UE1 can be known self current position information L1 through GPS simultaneously, so UE1 can report to server side with L1 and AP1 (supposing that AP1 is the identification information of access point), server side can get up L1 and AP1 associated in correspondence; That is to say, L1 is similar to thinks the positional information of AP1 and store this corresponding relation:
| Access point | The position |
| AP1 | L1 |
Table 1
If portable terminal can scan a plurality of access points simultaneously at same position; Then server side can be confirmed as same position the position of a plurality of access points; Shown in Fig. 2 b; Current can the scanning of UE1 has three access point AP2, AP3, AP4 on every side; UE2 can be known self current position information L2 through GPS simultaneously; So UE1 can report to server side with L2 and AP2, AP3, AP4; Server side can get up L2 and AP2, AP3, AP4 associated in correspondence, and concrete stored relation is following:
| Access point | The position |
| AP2 | L2 |
| AP3 | L2 |
| AP4 | L2 |
Table 2
Because the present invention program adopts the mode of approximate storage AP positional information; Therefore in practical application; A kind of situation that may run into is: the AP identification information that upload at the terminal is identical; But positional information is different; The situation shown in Fig. 2 c for example; UE3 and UE4 can scan AP5 respectively, but this two terminals present position L3 and L4 and inconsistent.In addition, L3 and L4 also possibly be same terminal residing diverse locations before and after moving.For this situation, in this step, server side can directly be stored a plurality of positions to same access point when actual treatment, for example:
| Access point | The position |
| AP5 | L3，L4 |
Table 3
After also can carrying out integration processing to a plurality of positions, obtain a unique position after, store again, for example:
| Access point | The position |
| AP5 | F(L3，L4) |
Table 4
Wherein, F (L3, L4) expression is to the integration processing function of a plurality of positional informations, and for example, the mid point of getting any two points is iteration then, perhaps gets the distance and minimum point that reach a plurality of points, or the like, the present invention need not limit concrete integration algorithm.
Through above-mentioned AP positional information acquisition method, combine some artificial collection typings again, can form the corresponding relation database of an AP identification information and AP positional information.After mobile terminal reporting AP identification information to be positioned, just can inquire corresponding AP positional information according to the AP identification information that is reported.
Certainly, in practical application, portable terminal to be positioned may report the identification information of one or more AP; In the corresponding Query Result; Also possibly comprise one or more AP positional informations,, will in step S103, be elaborated for the concrete processing mode of these positional informations.
S103 according to the AP positional information that inquires, confirms the position of said portable terminal to be positioned.
At first need to prove; In order to realize location to the terminal; Should guarantee in the Query Result of S102; At least comprise an AP positional information; If a result does not inquire; Illustrate that server side does not collect this portable terminal to be positioned positional information of AP on every side in advance, can't proceed the location this moment.
To describe in detail below: in Query Result, comprise under the situation of one or more AP positional informations, put scheme for the location at terminal:
The simplest a kind of situation is: (concrete reason possibly be that portable terminal has only reported an AP identification information at S101 in S102, only to inquire an AP positional information; Also possibly be that portable terminal has reported a plurality of AP identification informations at S101, but in S102, only find a corresponding position information).For this situation, can directly the position of this AP be confirmed as the position of portable terminal to be positioned.
If in S102, inquiring a plurality of AP positional informations (specifically possibly be a plurality of AP information of corresponding a plurality of AP signs; If in S102, do not adopt the storage mode of integrating; Then also possibly be corresponding AP sign a plurality of AP information); So; Need be according to these a plurality of positional informations; Integrate out a location point, as the positioning result of portable terminal to be positioned.
Wherein, the algorithm of integration can be the mid point iteration then of getting any two points, perhaps gets the distance and minimum point that reach a plurality of points, or the like, the present invention need not limit concrete integration algorithm.
Carry out simple declaration in the face of the concrete implementation of getting minimum range and point down:
At first, a plurality of AP location point L1, L2, L3...... for inquiring select any one location point as initial point, get an increment size Δ at random then,
On initial point, beginning is attempted expanding toward the four direction in space according to the increment size Δ successively, if littler with value to all location points of the point of attempting then moves to reposition to this point.Otherwise changing a direction attempts.
If four direction is all not removable, then reduce the increment size Δ, get 0.5 times or 0.618 times, attempt again.
When the increment size Δ is enough little, when reaching required precision, then withdraw from circulation this time, obtain final integration location point.
The above-mentioned method of choosing minimum range and point can be understood as: at first at will get an AP location point, look at this distance of putting other each AP location points and what are, again this point is being moved to look at whether have more suitably all around.More suitably just replacement is arranged, more suitably just do not dwindle moving range, until find only that point.
Utilize said method, server side can be accomplished the location to portable terminal, according to the actual requirements, can also further positioning result be sent to portable terminal, with the Location Request of response portable terminal.Scheme provided by the present invention; Identify according near the AP the current location of portable terminal by server side; The AP positional information that inquiry is gathered in advance; Thereby position, the current location of portable terminal is roughly calculated; Although can't reach the positioning accuracy of GPS; But can not possess under the situation of other location conditions at portable terminal; Solve the portable terminal orientation problem; In conjunction with services such as network maps; Can give equally to allow the user that there is a understanding roughly self present located position, have bigger using value.
Corresponding to top method embodiment, the present invention also provides a kind of portable terminal positioner, and referring to shown in Figure 3, this device comprises:
The AP sign obtains unit 310, is used to obtain the identification information of the wireless network access point AP of portable terminal to be positioned near;
Referring to shown in Figure 4, device provided by the present invention can also comprise that the AP positional information obtains unit 340, and said AP positional information obtains the unit and is used to obtain the AP positional information corresponding with the AP identification information, specifically is used for:
Acquisition has the identification information of AP second place information and this portable terminal of this portable terminal that portable terminal reported self of second stationkeeping ability near; Wherein, said second place information utilizes second stationkeeping ability to obtain by portable terminal;
Second place information that same portable terminal reported and AP identification information are carried out related, the second place information that portable terminal reported is confirmed as the AP positional information corresponding with the AP identification information.
In a kind of concrete implementation of the present invention, said AP positional information obtains unit 340 and further specifically is used for:
Under the same AP identification information situation corresponding, confirm as the AP position corresponding with the AP identification information with arriving these positions point minimum apart from sum with a plurality of second place information.
In a kind of concrete implementation of the present invention, said positioning unit 330 specifically can be used for:
Under the situation that only inquires an AP positional information, the position of this AP is confirmed as the position of said portable terminal to be positioned.
Perhaps
Inquiring under the situation that is no less than two AP positional informations, confirming as the position of said portable terminal to be positioned arriving these AP positions point minimum apart from sum.
In a kind of concrete implementation of the present invention, said AP sign obtains unit 310, specifically is used for:
Receive the Location Request that portable terminal to be positioned sends, in the said Location Request, carry near the AP identification information of said portable terminal to be positioned;
Wherein, said portable terminal to be positioned can obtain self AP identification information on every side through signal scanning.
Referring to shown in Figure 5, device provided by the present invention can also comprise:
Transmitting element 350 as a result, are used for definite result of the unit of said location is sent to said portable terminal to be positioned.
For the convenience of describing, be divided into various unit with function when describing above the device and describe respectively.Certainly, when embodiment of the present invention, can in same or a plurality of softwares and/or hardware, realize the function of each unit.
Description through above execution mode can know, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words can be come out with the embodied of software product; This computer software product can be stored in the storage medium; Like ROM/RAM, magnetic disc, CD etc.; Comprise that some instructions are with so that a computer equipment (can be a personal computer; Server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and identical similar part is mutually referring to getting final product between each embodiment, and each embodiment stresses all is the difference with other embodiment.Especially, for device or system embodiment, because it is basically similar in appearance to method embodiment, so describe fairly simplely, relevant part gets final product referring to the part explanation of method embodiment.Apparatus and system embodiment described above only is schematic; Wherein said unit as the separating component explanation can or can not be physically to separate also; The parts that show as the unit can be or can not be physical locations also; Promptly can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can realize the purpose of present embodiment scheme according to the needs selection some or all of module wherein of reality.Those of ordinary skills promptly can understand and implement under the situation of not paying creative work.
The above only is the specific embodiment of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be considered as protection scope of the present invention.
Claims (20)
1. a mobile terminal locating method is characterized in that, comprising:
Obtain the identification information of the wireless network access point AP of portable terminal to be positioned near;
According to the AP identification information, the AP positional information that inquiry is corresponding;
According to the AP positional information that inquires, confirm the position of said portable terminal to be positioned.
2. method according to claim 1 is characterized in that, the said AP positional information corresponding with the AP identification information obtains in the following manner:
Acquisition has the identification information of AP second place information and this portable terminal of this portable terminal that portable terminal reported self of second stationkeeping ability near; Wherein, said second place information utilizes second stationkeeping ability to obtain by portable terminal;
Second place information that same portable terminal reported and AP identification information are carried out related, the second place information that portable terminal reported is confirmed as the AP positional information corresponding with the AP identification information.
3. method according to claim 2 is characterized in that, this method also comprises:
Under the same AP identification information situation corresponding, confirm as the AP position corresponding with the AP identification information with arriving these positions point minimum apart from sum with a plurality of second place information.
4. method according to claim 1 is characterized in that, the AP positional information that said basis inquires is confirmed the position of said portable terminal to be positioned to comprise:
Under the situation that only inquires an AP positional information, the position of this AP is confirmed as the position of said portable terminal to be positioned.
5. method according to claim 1 is characterized in that, the AP positional information that said basis inquires is confirmed the position of said portable terminal to be positioned to comprise:
Inquiring under the situation that is no less than two AP positional informations, confirming as the position of said portable terminal to be positioned arriving these AP positions point minimum apart from sum.
6. method according to claim 1 is characterized in that, near the AP identification information the said acquisition portable terminal to be positioned comprises:
Receive the Location Request that portable terminal to be positioned sends, in the said Location Request, carry near the AP identification information of said portable terminal to be positioned.
7. method according to claim 1 is characterized in that, said portable terminal to be positioned obtains self AP identification information on every side through signal scanning.
8. method according to claim 1 is characterized in that, after the position of confirming said portable terminal to be positioned, also comprises:
To confirm that the result is sent to said portable terminal to be positioned.
9. method according to claim 1 is characterized in that, said AP identification information is the MAC Address of AP.
10. method according to claim 1 is characterized in that, said second stationkeeping ability is the GPS stationkeeping ability.
11. a portable terminal positioner is characterized in that, comprising:
The AP sign obtains the unit, is used to obtain the identification information of the wireless network access point AP of portable terminal to be positioned near;
Query unit is used for the identification information according to AP, the AP positional information that inquiry is corresponding;
Positioning unit is used for confirming the position of said portable terminal to be positioned according to the AP positional information that inquires.
12. device according to claim 11 is characterized in that, this device comprises that also the AP positional information obtains the unit, and said AP positional information obtains the unit and is used to obtain the AP positional information corresponding with the AP identification information, specifically is used for:
Acquisition has the identification information of AP second place information and this portable terminal of this portable terminal that portable terminal reported self of second stationkeeping ability near; Wherein, said second place information utilizes second stationkeeping ability to obtain by portable terminal;
Second place information that same portable terminal reported and AP identification information are carried out related, the second place information that portable terminal reported is confirmed as the AP positional information corresponding with the AP identification information.
13. device according to claim 12 is characterized in that, said AP positional information obtains the unit and further specifically is used for:
Under the same AP identification information situation corresponding, confirm as the AP position corresponding with the AP identification information with arriving these positions point minimum apart from sum with a plurality of second place information.
14. device according to claim 11 is characterized in that, said positioning unit specifically is used for:
Under the situation that only inquires an AP positional information, the position of this AP is confirmed as the position of said portable terminal to be positioned.
15. device according to claim 11 is characterized in that, said positioning unit specifically is used for:
Inquiring under the situation that is no less than two AP positional informations, confirming as the position of said portable terminal to be positioned arriving these AP positions point minimum apart from sum.
16. device according to claim 11 is characterized in that, said AP sign obtains the unit, specifically is used for:
Receive the Location Request that portable terminal to be positioned sends, in the said Location Request, carry near the AP identification information of said portable terminal to be positioned.
17. device according to claim 11 is characterized in that, said portable terminal to be positioned obtains self AP identification information on every side through signal scanning.
18. device according to claim 11 is characterized in that, this device also comprises:
Transmitting element as a result is used for definite result of the unit of said location is sent to said portable terminal to be positioned.
19. device according to claim 11 is characterized in that, said AP identification information is the MAC Address of AP.
20. device according to claim 11 is characterized in that, said second stationkeeping ability is the GPS stationkeeping ability.
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