CN105764031A - Wireless positioning method and wireless positioning device - Google Patents
Wireless positioning method and wireless positioning device Download PDFInfo
- Publication number
- CN105764031A CN105764031A CN201610008500.9A CN201610008500A CN105764031A CN 105764031 A CN105764031 A CN 105764031A CN 201610008500 A CN201610008500 A CN 201610008500A CN 105764031 A CN105764031 A CN 105764031A
- Authority
- CN
- China
- Prior art keywords
- location
- terminal
- alignment layers
- positioning
- place
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H04W4/04—
Landscapes
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a wireless positioning method and a wireless positioning device. The method comprises steps: multiple positioning APs (Access Point) in a target positioning layer are selected to carry out positioning measurement on a terminal and positioning measurement information returned by the positioning APs is received, wherein the positioning measurement information comprises the signal strength of a terminal response signal detected by the positioning APs; if the strength of signals returned by a preset number of positioning APs achieves a preset strength range in the target positioning layer, the terminal is determined to be located in the target positioning layer, and the terminal is positioned in the target positioning layer according to the positioning measurement information, wherein the target positioning layer comprises a positioning layer where an AP currently associated with the terminal is or a positioning layer adjacent to the positioning layer where the associated AP is. The positioning accuracy of the WLAN indoor positioning technology is improved.
Description
Technical field
The present invention relates to network technology, particularly to a kind of wireless location method and device.
Background technology
Current indoor location technology in market, station, the public place such as airport popularize gradually, become and promote service quality and lead the essential tool of consumption.Wherein, WLAN (WirelessLocalAreaNetwork, WLAN) location technology due to can meeting the terminal positioning that simultaneously completes of user's network connection demand, very popular.The a lot of places using WLAN location are many floors buildings, such as, in market, generally have multiple floor, in this many floors are built, need to reach concrete terminal place floor and in the plan-position of this floor to the location of terminal.
In correlation technique, can by the AP (WirelessAccessPoint of terminal association, wireless access points) floor at place is as the floor at this terminal place, at this floor to terminal positioning plan-position, because wireless signal is had stronger attenuation by floor building, the This floor AP association that terminal meeting prioritizing selection close together signal is stronger.If but in many floors are built, it being provided with this open space of courtyard, the courtyard place in such as a lot of markets, owing to not having blocking of floor building so that the signal of each floor is easily leaked to outside floor.And, owing to the radio transmitted power of each AP is not necessarily completely the same, likely the signal of the AP that distance terminal is remote is stronger than the signal apart near AP on the contrary, terminal is made to be likely to be associated with on oneself AP farther out, such as, certain terminal physical location is at 1 layer, it is possible that be associated with on the AP of 2 layers.In this case, if still the floor of the AP associated by terminal being defined as terminal place floor, will appear from Wrong localization.
Summary of the invention
In view of this, the present invention provides a kind of wireless location method and device, to improve the Position location accuracy of WLAN indoor positioning technologies.
Specifically, the present invention is achieved through the following technical solutions:
First aspect, it is provided that a kind of wireless location method, including:
Selecting multiple location AP that terminal positions measurement at target alignment layers, and receive the described location AP location measurement information returned, described location measurement information includes: the signal intensity of the terminal response signal of described location AP detection；
If the AP signal intensity returned that positions that there is predetermined number at described target alignment layers reaches preset strength scope, it is determined that described terminal is positioned at described target alignment layers, and terminal is positioned at described target alignment layers according to described location measurement information；
Described target alignment layers includes the alignment layers at the current associated AP place of described terminal and the adjacent positioned layer of associated AP place alignment layers.
Second aspect, it is provided that a kind of radio positioner, including:
Location measurement module, for selecting multiple location AP that terminal positions measurement at target alignment layers, and receives the described location AP location measurement information returned, and described location measurement information includes: the signal intensity of the terminal response signal of described location AP detection；Described target alignment layers includes the alignment layers at the current associated AP place of described terminal and the adjacent positioned layer of associated AP place alignment layers；
Location Calculation module, when the signal intensity that location AP for there is predetermined number at described target alignment layers returns reaches preset strength scope, determine that described terminal is positioned at described target alignment layers, and at described target alignment layers, terminal is positioned according to described location measurement information.
The wireless location method of the embodiment of the present invention and device, by the location measurement information that terminal is measured according to location AP feedback, if the signal intensity that there is the location AP of predetermined number reaches preset strength scope, just determine that terminal is positioned at this alignment layers, this mode is owing to being the judgement jointly being determined terminal positioning layer by the feedback signal of multiple location AP, determining terminal place alignment layers relative to the position according to associated AP, accuracy will be higher, improve the Position location accuracy of WLAN indoor positioning technologies.
Accompanying drawing explanation
Fig. 1 is the many floor building schematic diagrams of one that the embodiment of the present invention provides；
Fig. 2 is a kind of wireless location system Organization Chart that the embodiment of the present invention provides；
Fig. 3 is the flow chart of a kind of wireless location method that the embodiment of the present invention provides；
Fig. 4 is the flow chart of the another kind of wireless location method that the embodiment of the present invention provides；
Fig. 5 is the flow chart of another wireless location method that the embodiment of the present invention provides；
Fig. 6 is the flow chart of another wireless location method that the embodiment of the present invention provides；
Fig. 7 is the entity structure diagram of a kind of engine of positioning server that the embodiment of the present invention provides；
Fig. 8 is the building-block of logic of a kind of radio positioner that the embodiment of the present invention provides.
Detailed description of the invention
The application in the public place such as market, station of the WLAN indoor positioning technologies gets more and more, and often there is the building of many floors in these places, example referring to Fig. 1, this can be a market including three floors, carrying the user of intelligent terminal after entering into this market, terminal can be surfed the Net by the AP disposed in association market, simultaneously, WLAN indoor positioning technologies can also utilize the AP in market that terminal is positioned, thus understanding user whereabouts position in this market.The wireless location method that the disclosure provides, will can apply in the building of this many floors the location to terminal, and can position floor and the position at terminal place more accurately.
The disclosure can coordinate, by each equipment in the wireless location system shown in Fig. 2, the wireless location method performing the disclosure.In conjunction with shown in Fig. 1 and Fig. 2, WLAN indoor positioning needs to dispose the AP for positioning in indoor place, such as, in the multilamellar market shown in Fig. 1, each floor can be deployed with multiple AP, assuming that AP11, AP12 and AP13 are the AP being deployed in each floor of market respectively, during actual deployment, each floor can dispose multiple AP according to customer demand and practical situation.Terminal 14 in market can be associated with on one of them AP, for instance, terminal 14 can select the AP11 association that signal is stronger.And engine of positioning 15 may indicate that terminal is positioned measurement by each AP, and utilize the AP location measurement information returned to position calculating, obtain the position of terminal.
In the building of many floors, such as many floors and there is the market of courtyard, existence due to this kind of depletion region of courtyard, the signal making the AP in each floor is easy to leak, terminal is likely associated with oneself not on the AP that the signal of same floor is stronger, such as, terminal is on the AP that second floor is but associated with 3rd floors.If only according to associated AP, associated AP place floor being defined as terminal place floor, Wrong localization will be caused undoubtedly.The wireless location method that the disclosure provides, will be used for positioning more accurately floor and the position at terminal place so that even if terminal association is not at the AP of same layer, it is also possible to determine terminal place floor accurately.Fig. 3 illustrates the wireless location method in one example of the disclosure, and the method can be that engine of positioning performs, and this method describe engine of positioning and how to judge whether terminal is positioned at some alignment layers.As it is shown on figure 3, the method may include that
In step 301, selecting multiple location AP that terminal positions measurement at target alignment layers, and receive the described location AP location measurement information returned, described location measurement information includes: the signal intensity of the terminal response signal of described location AP detection.
Such as, engine of positioning is when positioning terminal, it is possible to first determines the alignment layers at terminal place, then positions the position of terminal on the alignment layers determined." alignment layers " can be one and be deployed with the aspect that can be used in jointly coordinating multiple AP that some terminal is positioned, such as, and some floor；Such as, in the market of three floors, first floor in market can as an alignment layers, and each position of the first floor can disperse to be deployed with multiple AP, by these multiple AP, the terminal of the first floor is positioned；In like manner, the second floor as another alignment layers, can also also be deployed with multiple AP for the terminal of the second floor is positioned, and different floors is different alignment layers.
In this example, target alignment layers can be such as the alignment layers at the current associated AP place of terminal, or can also be the adjacent positioned layer of associated AP place alignment layers.Such as, but it is associated with at second floor in above-mentioned terminal in the example of AP of 3rd floors, can be for 3rd floors the alignment layers at the associated AP place of terminal, and second floor can be the adjacent positioned layer of associated AP place alignment layers.
In this step, engine of positioning can select multiple location AP that terminal is positioned measurement from target alignment layers, it is possible to receives the location measurement information of feedback after terminal is measured by these location AP, can include the signal intensity of terminal response signal in this information.
In step 302, if the AP signal intensity returned that positions that there is predetermined number at described target alignment layers reaches preset strength scope, then determine that described terminal is positioned at described target alignment layers, and at described target alignment layers, terminal is positioned according to described location measurement information.
Such as, engine of positioning is after receiving the location AP location measurement information returned, it is possible to according to the signal intensity that location measurement information includes, it may be judged whether the signal intensity of the location AP return that there is predetermined number reaches preset strength scope.Exemplary, preset strength scope can be greater than-75dBm, and predetermined number can be three, then needing the condition met it may be that have at least in the AP of three or more than three location measurement information returned, the numerical value of signal intensity is more than-75dBm.Engine of positioning can according to the multiple location AP received in step 301 location measurement information returned, it may be judged whether meet above-mentioned condition.If judged result is for satisfying condition, then may determine that terminal is positioned at this target alignment layers, it is possible to according to location measurement information, at target alignment layers, terminal is positioned.
The wireless location method of this example, when judging whether terminal is positioned at some alignment layers, can be select multiple location AP that terminal positioning is measured from this alignment layers, and determine that whether terminal is at this alignment layers according to measurement result, this feedback signal by multiple location AP determines the mode of terminal positioning layer jointly, determining terminal place alignment layers relative to the position of only foundation associated AP, the judgment accuracy to terminal positioning layer will be higher, improve the Position location accuracy of WLAN indoor positioning technologies.
Fig. 4 illustrates the wireless location method in another example of the disclosure, the method can be that engine of positioning performs, in the present example, engine of positioning is when judging the alignment layers of terminal, can first judge the alignment layers at the associated AP place of terminal, if it is determined that terminal is not at this alignment layers, followed by judging adjacent positioned layer.As shown in Figure 4, this example can include following flow process:
In step 401, at the alignment layers at the associated AP place of terminal, indicate multiple location AP that terminal is positioned measurement.
Such as, still for many floors market of Fig. 1 example, it is assumed that the user holding intelligent terminal enters into market, this terminal association is to one of them AP in market, then this AP is properly termed as " associated AP " of terminal.The information reportings such as AP can be identified by associated AP, terminal iidentification are to engine of positioning so that engine of positioning knows this correlating event.
Engine of positioning is knowing that terminal association is to after AP, it is possible to opens the wireless location to terminal and processes.Exemplary, for the triangle polyester fibre algorithm based on time range finding in WLAN location technology, engine of positioning may indicate that terminal is positioned measurement by the several AP apart from terminal is nearer, in this step, engine of positioning can prestore the AP deployment information in many floors market of Fig. 1 example, such as which AP each floor is deployed with respectively, when engine of positioning gets the AP mark of the associated AP in this correlating event, can according to the AP deployment information of AP mark and storage, determine the floor at this associated AP place, the floor at associated AP place is called the alignment layers at associated AP place by this example.
After determining the alignment layers at associated AP place, the alignment layers at this associated AP place is engine of positioning to carry out judging the target alignment layers of (judging that whether terminal is at this layer).Engine of positioning first alignment layers at associated AP place can select several AP for terminal positioning is measured, alignment layers at associated AP place can be selected the location AP determined to be called " the first location AP " by this example, and this first location AP is for positioning measurement to terminal.Such as, with associated AP for the center of circle, in the scope of certain radius, select a number of first location AP, it is possible to send the mode of location measurement request by positioning AP to selected first, indicate these first location AP that terminal is positioned measurement.Wherein, the first selected location AP can include the associated AP of terminal；The selection of the first location AP can have various ways, such as can according to the mark of each AP in above-mentioned radius, such as, ten AP are had in radius, the quantity of the first location AP that this step to select is eight, and assume AP mark be 001 respectively, 002,003 until 010, then can sort according to mark size and select 001 to 008 these eight AP.
In step 402, receiving the location AP location measurement information returned, this location measurement information includes: the signal intensity of the terminal response signal of location AP detection.
Such as, the first location AP is after request is measured in the location receiving engine of positioning, it is possible to send, to terminal to be positioned, the request of measurement, it is possible to receives this terminal and positions the AP measurement returned response to first.First location AP can will send the signal intensity RSSI (RadioSignalStrengthIndicator of measurement response (being properly termed as terminal response signal) received after measurement is asked to terminal, wireless signal strength), a part as location measurement information reports to engine of positioning, performs the process of step 403 according to RSSI for engine of positioning.Additionally, the location measurement information that the first location AP feeds back to engine of positioning, outside the RSSI including above-mentioned terminal response signal, other information can also be included, such as, the distance between terminal to be positioned and this first location AP, terminal is positioned according to this distance for engine of positioning.
In step 403, it may be judged whether the signal intensity of the location AP return that there is predetermined number reaches preset strength scope.
Such as, in this step, engine of positioning is after receiving the first location AP location measurement information returned, it is possible to the signal intensity first included according to location measurement information, it may be judged whether the signal intensity of the first location AP return that there is predetermined number reaches preset strength scope.Exemplary, preset strength scope can be greater than-75dBm, and predetermined number can be three, then needing the condition met it may be that have at least in the AP of three or more than three location measurement information returned, the numerical value of signal intensity is more than-75dBm.Engine of positioning can according to the multiple first location AP received in step 402 location measurement information returned, it may be judged whether meet above-mentioned condition.
In addition, predetermined number and preset strength scope can be set according to practical situation, the signal intensity that first location AP of predetermined number returns reaches preset strength scope, this condition is for determining that terminal to be positioned is whether in the condition of the alignment layers at these AP places, the first location, assume that terminal is positioned at the alignment layers at the first AP place, location, the signal intensity then generally having between sufficient amount of AP and terminal is stronger, if and terminal is not in the alignment layers at the first AP place, location, even if terminal association is to certain AP of this alignment layers, generally there will not be sufficient amount of and that signal intensity is stronger AP.
If the determination result is YES, then may determine that terminal to be positioned is positioned at the alignment layers at associated AP place, it is possible to continue executing with step 404, according to location measurement information, terminal is positioned by the alignment layers at associated AP place.For example, it is possible to position the AP location measurement information returned according to first, terminal is positioned calculating, it is determined that terminal is in the plan-position of this alignment layers；Such as, the distance between computing terminal and each first location AP, and in conjunction with positioning mode location terminals such as triangle polyester fibre, no longer describe in detail.
Otherwise, if the judged result of step 403 is no, then may determine that terminal to be positioned is not at the alignment layers at associated AP place, it is possible to continue executing with cross-layer and process.This cross-layer processes and namely judges that terminal is whether at other alignment layers, if for the market of three floors, then be may determine that by above-mentioned steps the position obtaining terminal is not at the floor at its associated AP place, then may determine that whether terminal is at other floors.
In step 405, engine of positioning can determine location AP at the adjacent positioned layer of associated AP place alignment layers.
In this step, when engine of positioning determines that the position of terminal is not when the alignment layers at its associated AP place, can using the adjacent positioned layer of associated AP place alignment layers as target alignment layers, and at this adjacent positioned layer, terminal is positioned the judgement of measurement and alignment layers, then engine of positioning is still wanted first to determine some location AP at this adjacent positioned layer.
Such as, this example according to the associated AP perpendicular projection coordinate points at adjacent positioned layer, can select multiple location AP of adjacent positioned layer that terminal is positioned measurement.Such as, the AP of each alignment layers disposes, engine of positioning is known, can these AP deployment informations be stored in the data base of engine of positioning after disposing AP, therefore engine of positioning is it is known that associated AP is in the present position of alignment layers, and can obtain the perpendicular projection coordinate points of another alignment layers of this position corresponding.Engine of positioning can select several AP from this another alignment layers, and indicate these AP to carry out terminal actively measuring, in order to the first location AP of these AP with associated AP place alignment layers is distinguished, the AP that terminal positioning is measured of this adjacent positioned layer can be called " the second location AP " by this example.Such as, with associated AP in the perpendicular projection coordinate points of adjacent positioned layer for the center of circle, to select eight second location AP in the scope of radius 30m, and indicate its measuring terminals.
In addition, engine of positioning is according to the associated AP perpendicular projection coordinate points at adjacent positioned layer, select the second location AP in environs, also include: according to the last time, in the perpendicular projection coordinate points of adjacent positioned layer, the position location of terminal positioning being selected the second location AP, this position location also obtains according to associated AP.Such as, as terminal initial association certain AP upper, can select some location AP that terminal positioning measurement positions the position of terminal according to this associated AP, assume that this obtains the position location of terminal, and engine of positioning performed a terminal positioning every one second, so when next second is still when this alignment layers at associated AP place is to terminal positioning, it is possible to select AP according to this position location, such as can with this position for regioselective AP within the scope of the pre-set radius in the center of circle；Follow-up to this terminal positioning time, can according to last position location regioselective AP.And when carrying out cross-layer and processing, it is also possible to according to the last position location perpendicular projection coordinate points at adjacent positioned layer, select the second location AP in perpendicular projection coordinate points environs.
After determining the location AP of adjacent positioned layer, engine of positioning can return execution step 403, namely judges whether the 2nd AP of the adjacent positioned layer location measurement information returned satisfies condition.
In returning the step 403 performed, engine of positioning can receive each second location AP location measurement information returned, including the second signal intensity positioning the AP terminal response signal detected.Rule of judgment is judge whether that the second location AP of predetermined number signal intensity returned reaches strength range.If it is judged that be yes, then show that terminal is in the adjacent positioned layer at the second AP place, location, then continue executing with step 404, position the AP location measurement information returned according to second and carry out terminal positioning；Otherwise, it is possible to continue executing with step 405, then change an adjacent positioned layer, continue to judge that whether terminal is at the alignment layers changed.
The wireless location method of the present embodiment, the alignment layers at the associated AP place of terminal will not be determined directly as the alignment layers at terminal place by engine of positioning, but position the AP signal intensity returned according to a certain layer, when the signal intensity that this layer exists the location AP return of predetermined number reaches preset strength scope, just think that terminal is in the alignment layers at AP place, this layer of location；Further, engine of positioning can also carry out cross-layer judgement, it is judged that whether terminal, at other alignment layers, is enable to location floor residing for terminal accurately, improves the Position location accuracy of WLAN indoor positioning technologies.
Following with an example, the application of the wireless location method of the disclosure is described.Assuming a scene, user carries mobile terminal and enters into market and do shopping, and this market can be the building including three floors of Fig. 1 example, and assumes that this market has courtyard so that the signal between each floor creates leakage.Active user is in second floor in the position in market, but due to the spaciousness of courtyard so that the mobile terminal of user is associated with on the AP that the bigger signal of certain power of 3rd floors is stronger.Now, engine of positioning receives this correlating event, starts the location of the mobile terminal to user.
Fig. 5 illustrates the flow process performed by engine of positioning, and in this flow process, mobile terminal illustrates for mobile phone, but is not limited to mobile phone, and in the present example, the adjacent positioned layer selecting associated AP place alignment layers is judged by engine of positioning.This flow process may include that
In step 501, the engine of positioning associated AP according to mobile phone, at 3rd floors alignment layers at associated AP place, select multiple first location AP, mobile phone location is measured by instruction the first location AP.Such as, with associated AP for the center of circle, radius r (as, it is possible to be 30 meters, it is possible to according to practical situation adjustment) scope in, select m (e.g., eight, it is possible to according to practical situation adjustment) individual first location AP.Engine of positioning can send location to selected these first location AP and measure request.
In step 502, engine of positioning receives the first location AP location measurement information returned, and carries signal intensity.This signal intensity can be the intensity of the first location AP terminal response signal received.
In step 503, engine of positioning judges that whether the signal intensity quantity more than the first location AP of-75dBm is more than or equal to 3.In the present example, predetermined number is set to three, preset strength scope is set to-75dBm, during actual enforcement, these parameters can be adjusted.In this step, engine of positioning can be added up the signal intensity in location measurement information and reach the quantity of the first location AP more than-75dBm scope, and determines that whether this quantity is more than or equal to three.
In the present example, the judged result of engine of positioning is no, namely, as the user being positioned at second floor, during the AP of mobile phone association to 3rd floors, in the location measurement information that engine of positioning receives, signal intensity reaches the quantity of the first location AP more than 3rd floors of-75dBm scope less than three, engine of positioning can determine therefrom that mobile phone is not at 3rd floors, then can proceed cross-layer and process, perform step 504.
In step 504, engine of positioning selects the adjacent positioned layer with associated AP place alignment layers, this example is for 3rd floor, associated AP place, engine of positioning can select adjacent second floor alignment layers, and with associated AP in the perpendicular projection coordinate points of second floor alignment layers for the center of circle, select the AP of the predetermined number within the scope of pre-set radius to position AP as second.Such as, with associated AP in the perpendicular projection coordinate points of second floor alignment layers for the center of circle, select eight second location AP within the scope of radius 30 meters, indicate described second location AP that terminal is positioned measurement.
In step 505, engine of positioning receives the second location AP location measurement information returned, and carries signal intensity.Step 403 is performed, it is judged that whether the signal intensity quantity more than the second location AP of-75dBm is more than or equal to 3 at this point it is possible to return.
In the present example, the judged result of engine of positioning is yes, it is determined that mobile phone is positioned at second floor alignment layers, and the position that namely user is current is second floor.Then in step 506, engine of positioning can continue the location measurement information according to the second location AP chosen at second floor alignment layers, and locating cellphone is in the actual plane position of second floor, such as, may finally navigate to user current just near so-and-so shop of second floor.Exemplary, the customer location navigated to can also be sent to upper layer application by engine of positioning, and upper layer application can push the advertising message with this shop to the mobile phone of user accordingly.
Additionally, in the present example, the adjacent positioned layer that engine of positioning selects is second floor, and this second floor is exactly the floor at user place, therefore the judgement of this adjacent positioned layer of this second floor just can be completed the location to user.In other example, it can also be other scenes that the selection of adjacent positioned layer judges, such as, one of them adjacent positioned layer of alignment layers at associated AP place can be selected as target alignment layers, next floor of such as associated AP place alignment layers, judge that whether terminal is at this floor, when determining that terminal is not when this next floor, another adjacent positioned layer selecting associated AP place alignment layers can be continued as target alignment layers, a upper floor of such as associated AP place alignment layers, judge that whether terminal is at a upper floor, namely two neighbouring floors can be carried out judging.And if the alignment layers at associated AP place is the top layer in building, then next floor can be selected as the adjacent positioned layer to judge；When the alignment layers at associated AP place is the bottom in building, it is possible to select a upper floor as the adjacent positioned layer to judge.
By above-mentioned example it can be seen that, by being judged the floor at terminal place according to the location AP signal intensity returned by engine of positioning, can improve under the indoor positioning scene of many floors, accuracy to terminal positioning, even if the AP of terminal association is not the AP of floor residing for oneself, by the wireless location method of this example, it is also possible to recognize this situation, and judge the correct floor at terminal place.
In another example, when engine of positioning carries out the judgement of terminal place floor according to the wireless location method of the disclosure, it is also possible to still cannot navigate to the floor at the concrete place of terminal, in this case this location data can be discarded, the such as location measurement information of location AP feedback, it is possible to wait the pending positioning instant next time can.The flow process of example shown in Figure 6:
Such as, terminal to be positioned enters into certain market, is associated with one of them AP being deployed in market.In step 601, engine of positioning, with associated AP for the center of circle, have selected eight location AP in the scope of radius 30 meters, and terminal is positioned measurement by instruction.
In step 602, engine of positioning can receive the signal intensity of the measurement of eight location AP feedbacks, and this signal intensity is the terminal intensity to the location AP measurement response signal returned, it is possible to is carried by location AP and sends in location measurement information to engine of positioning.
In step 603, engine of positioning may determine that the number of the signal intensity location AP more than-75dBm, if more than or equal to 3.If it is judged that be yes, then may determine that the terminal This floor at associated AP place, continue terminal positioning is calculated at This floor.Otherwise, represent that terminal is not at the This floor at associated AP place, it is necessary to carry out cross-layer process.
In step 604, engine of positioning can associated AP be the center of circle in the perpendicular projection coordinate points of next floor, in the scope of radius 30 meters, selects eight location AP at next floor, indicates these location AP that terminal is positioned measurement.
In step 605, engine of positioning can receive the signal intensity of the measurement of eight location AP feedbacks of next floor, this signal intensity is the terminal intensity to the location AP measurement response signal returned, it is possible to is carried by location AP and sends in location measurement information to engine of positioning.
In step 606, engine of positioning may determine that the number of the signal intensity location AP more than-75dBm, if more than or equal to 3.If it is judged that be yes, then may determine that terminal next floor at associated AP place floor, continue terminal positioning is calculated at this next floor.Otherwise, represent that terminal is not at next floor of associated AP place floor, it is necessary to proceed cross-layer and process.
In step 607 to step 610, engine of positioning continues to judge that terminal is whether at a upper floor of associated AP place floor, if it is judged that be yes, then positions terminal at a upper floor；Otherwise, it was shown that terminal is not also at a upper floor, then now terminal is neither at the This floor at associated AP place, also not at a upper floor adjacent with This floor or next floor, this measurement data can be abandoned, namely do not continue to terminal positioning, and be to wait for positioning next time.Namely in the present example, a upper floor and next floor the two adjacent positioned layer can all be judged by engine of positioning, if the signal intensity that the location AP of not met predetermined number returns reaches the condition of preset strength scope, then can stop this location.
Such as, engine of positioning generally can to the terminal of the upper AP of association, every one second location once, so, flow process shown in Fig. 6, it can be wherein one-time positioning, if this no-fix is to the position of terminal, within next second, engine of positioning also can again to this terminal positioning, re-execute the flow process shown in a Fig. 6, therefore, in the example shown in Fig. 6, when all terminal cannot be navigated at the This floor of associated AP and contiguous floors, this location can be terminated, AP can wait when engine of positioning initiates location instruction next time, it is further continued for terminal positioning, it is likely to perform Fig. 6 flow process more next time and just can navigate to the floor at terminal place and in the plan-position of floor.
The wireless location method of this example, by being judged the floor at terminal place according to the location AP signal intensity returned by engine of positioning, can improve under the indoor positioning scene of many floors, accuracy to terminal positioning, even if the AP of terminal association is not the AP of floor residing for oneself, by the wireless location method of this example, it also is able to recognize this situation, and judge the correct floor at terminal place, indoor are existed to the building in the spacious places such as courtyard, the Wrong localization problem that terminal association to be positioned causes can be solved to the AP of mistake floor, make the use scope of WLAN indoor positioning, it is not limited to the location of single floor, it is adapted to the location of many floors.Additionally, this programme is implemented simple, terminal not being had particular/special requirement, as long as supporting WLAN function, and disposing floor AP also without particular/special requirement, each floor covers according to normal AP and disposes.
Fig. 7 illustrates the entity structure diagram of a kind of engine of positioning server, can being provided with engine of positioning on this server, this server may include that processor (processor) 710, communication interface (CommunicationsInterface) 720, memorizer (memory) 630 and bus 740.Wherein, processor 710, communication interface 720, memorizer 730 complete mutual communication by bus 740.
Wherein, communication interface 720, it is used for and net element communication, such as to AP instruction, terminal is positioned the location measurement information measured or receive AP transmission.Processor 710 can be a central processor CPU, memorizer 730 can be nonvolatile memory (non-volatilememory), and storage has logical order in memorizer 730, processor 710 can perform the logical order of storage in memorizer 730, to realize above-mentioned wireless location method.
The logical order of storage in memorizer 730 can be called radio positioner by this example, the structure of this device can in conjunction with referring to Fig. 8, as shown in Figure 8, it is possible to including: location measurement module 81, location Calculation module 82.
Location measurement module 81, for selecting multiple location AP that terminal positions measurement at target alignment layers, and receives the described location AP location measurement information returned, and described location measurement information includes: the signal intensity of the terminal response signal of described location AP detection；Described target alignment layers includes the alignment layers at the current associated AP place of described terminal and the adjacent positioned layer of associated AP place alignment layers；
Location Calculation module 82, when the signal intensity that location AP for there is predetermined number at described target alignment layers returns reaches preset strength scope, determine that described terminal is positioned at described target alignment layers, and at described target alignment layers, terminal is positioned according to described location measurement information.
Further, position measurement module 81, when target alignment layers selects multiple location AP that terminal is positioned measurement, be used for: using the alignment layers at associated AP place current for described terminal as target alignment layers, select multiple location AP that terminal is positioned measurement；When described location Calculation module determines that the location AP of the target alignment layers not met predetermined number signal intensity returned reaches the condition of preset strength scope, determine that described terminal is not when the alignment layers at described associated AP place, select the adjacent positioned layer of associated AP place alignment layers as described target alignment layers, and select multiple location AP that terminal is positioned measurement at described adjacent positioned layer.
Further, location measurement module 81, when target alignment layers selects multiple location AP that terminal is positioned measurement, it is used for: using one of them adjacent positioned layer of associated AP place alignment layers current for described terminal as target alignment layers, selects multiple location AP that terminal is positioned measurement；When described location Calculation module determines that the location AP of the target alignment layers not met predetermined number signal intensity returned reaches the condition of preset strength scope, determine that described terminal is not when described adjacent positioned layer, select another adjacent positioned layer of described associated AP place alignment layers as described target alignment layers, and select multiple location AP that terminal is positioned measurement at another adjacent positioned layer described.
Further, location measurement module 81, being additionally operable to: determine two adjacent positioned layers of the associated AP place alignment layers of terminal in described location Calculation module, there is when positioning the condition that the AP signal intensity returned reaches preset strength scope of predetermined number in equal not met, then stops this location.
Further, location measurement module 81, when target alignment layers selects multiple location AP that terminal is positioned measurement, for: if described target alignment layers is the adjacent positioned layer of associated AP place alignment layers, then with described associated AP in the perpendicular projection coordinate points of described adjacent positioned layer for the center of circle, select the AP of predetermined number within the scope of pre-set radius as location AP at described adjacent positioned layer.
If described function is using the form realization of SFU software functional unit and as independent production marketing or use, it is possible to be stored in a computer read/write memory medium.Based on such understanding, part or the part of this technical scheme that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within the scope of protection of the invention.
Claims (10)
1. a wireless location method, it is characterised in that including:
Selecting multiple location AP that terminal positions measurement at target alignment layers, and receive the described location AP location measurement information returned, described location measurement information includes: the signal intensity of the terminal response signal of described location AP detection；
If the AP signal intensity returned that positions that there is predetermined number at described target alignment layers reaches preset strength scope, it is determined that described terminal is positioned at described target alignment layers, and terminal is positioned at described target alignment layers according to described location measurement information；
Described target alignment layers includes the alignment layers at the current associated AP place of described terminal and the adjacent positioned layer of associated AP place alignment layers.
2. method according to claim 1, it is characterised in that described target alignment layers select multiple location AP terminal is positioned measurement, including:
Using the alignment layers at associated AP place current for described terminal as target alignment layers, select multiple location AP that terminal is positioned measurement；
When the location AP of the described target alignment layers not met predetermined number signal intensity returned reaches the condition of preset strength scope, determine that described terminal is not at the alignment layers at described associated AP place, select the adjacent positioned layer of associated AP place alignment layers as described target alignment layers, and select multiple location AP that terminal is positioned measurement at described adjacent positioned layer.
3. method according to claim 1 and 2, it is characterised in that described target alignment layers select multiple location AP terminal is positioned measurement, including:
Using one of them adjacent positioned layer of associated AP place alignment layers current for described terminal as target alignment layers, select multiple location AP that terminal is positioned measurement；
When the location AP of the described target alignment layers not met predetermined number signal intensity returned reaches the condition of preset strength scope, determine that described terminal is not at described adjacent positioned layer, select another adjacent positioned layer of described associated AP place alignment layers as described target alignment layers, and select multiple location AP that terminal is positioned measurement at another adjacent positioned layer described.
4. method according to claim 3, it is characterised in that described method also includes:
If two adjacent positioned layers of the associated AP place alignment layers of described terminal, there is the AP signal intensity returned that positions of predetermined number and reach the condition of preset strength scope in equal not met, then stops this location.
5. method according to claim 1, it is characterised in that when the adjacent positioned layer that described target alignment layers is associated AP place alignment layers, terminal is positioned measurement by described selection multiple location AP, including:
With described associated AP in the perpendicular projection coordinate points of described adjacent positioned layer for the center of circle, select the AP of predetermined number within the scope of pre-set radius as location AP at described adjacent positioned layer.
6. a radio positioner, it is characterised in that including:
Location measurement module, for selecting multiple location AP that terminal positions measurement at target alignment layers, and receives the described location AP location measurement information returned, and described location measurement information includes: the signal intensity of the terminal response signal of described location AP detection；Described target alignment layers includes the alignment layers at the current associated AP place of described terminal and the adjacent positioned layer of associated AP place alignment layers；
Location Calculation module, when the signal intensity that location AP for there is predetermined number at described target alignment layers returns reaches preset strength scope, determine that described terminal is positioned at described target alignment layers, and at described target alignment layers, terminal is positioned according to described location measurement information.
7. device according to claim 6, it is characterised in that
Described location measurement module, when target alignment layers selects multiple location AP that terminal is positioned measurement, is used for: using the alignment layers at associated AP place current for described terminal as target alignment layers, selects multiple location AP that terminal is positioned measurement；When described location Calculation module determines that the location AP of the target alignment layers not met predetermined number signal intensity returned reaches the condition of preset strength scope, determine that described terminal is not when the alignment layers at described associated AP place, select the adjacent positioned layer of associated AP place alignment layers as described target alignment layers, and select multiple location AP that terminal is positioned measurement at described adjacent positioned layer.
8. the device according to claim 6 or 7, it is characterised in that
Described location measurement module, when target alignment layers selects multiple location AP that terminal is positioned measurement, for: using one of them adjacent positioned layer of associated AP place alignment layers current for described terminal as target alignment layers, select multiple location AP that terminal is positioned measurement；When described location Calculation module determines that the location AP of the target alignment layers not met predetermined number signal intensity returned reaches the condition of preset strength scope, determine that described terminal is not when described adjacent positioned layer, select another adjacent positioned layer of described associated AP place alignment layers as described target alignment layers, and select multiple location AP that terminal is positioned measurement at another adjacent positioned layer described.
9. device according to claim 8, it is characterised in that
Described location measurement module, it is additionally operable to: determine two adjacent positioned layers of the associated AP place alignment layers of terminal in described location Calculation module, there is when positioning the condition that the AP signal intensity returned reaches preset strength scope of predetermined number in equal not met, then stops this location.
10. device according to claim 6, it is characterised in that
Described location measurement module, when target alignment layers selects multiple location AP that terminal is positioned measurement, for: if described target alignment layers is the adjacent positioned layer of associated AP place alignment layers, then with described associated AP in the perpendicular projection coordinate points of described adjacent positioned layer for the center of circle, select the AP of predetermined number within the scope of pre-set radius as location AP at described adjacent positioned layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008500.9A CN105764031A (en) | 2016-01-05 | 2016-01-05 | Wireless positioning method and wireless positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610008500.9A CN105764031A (en) | 2016-01-05 | 2016-01-05 | Wireless positioning method and wireless positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105764031A true CN105764031A (en) | 2016-07-13 |
Family
ID=56342344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610008500.9A Pending CN105764031A (en) | 2016-01-05 | 2016-01-05 | Wireless positioning method and wireless positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105764031A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106686071A (en) * | 2016-12-16 | 2017-05-17 | 京信通信技术(广州)有限公司 | Positioning method and server |
| CN107040886A (en) * | 2017-01-03 | 2017-08-11 | 阿里巴巴集团控股有限公司 | The method and device that a kind of information is determined |
| WO2018018861A1 (en) * | 2016-07-28 | 2018-02-01 | 华为技术有限公司 | Csi obtaining method, server, terminal and ap |
| WO2018176952A1 (en) * | 2017-03-29 | 2018-10-04 | 京信通信系统（中国）有限公司 | Indoor positioning method and server |
| CN108921258A (en) * | 2018-09-10 | 2018-11-30 | 丁宗海 | A kind of campus personnel intelligent management system and its management method |
| CN109188354A (en) * | 2018-08-29 | 2019-01-11 | 新华三技术有限公司 | A kind of wireless location method and device |
| CN113242523A (en) * | 2021-03-23 | 2021-08-10 | 杭州医惠物联网科技有限公司 | Indoor double-frequency RFID positioning multi-floor switching method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102791025A (en) * | 2011-05-20 | 2012-11-21 | 盛乐信息技术（上海）有限公司 | Wireless fidelity (WIFI) based layered positioning system and implementing method |
| CN102892197A (en) * | 2012-09-07 | 2013-01-23 | 佳都新太科技股份有限公司 | Wireless fidelity (WIFI)-based indoor positioning system |
| CN103476109A (en) * | 2013-08-16 | 2013-12-25 | 武汉飞沃网络有限公司 | Indoor AP positioning method |
| CN103916821A (en) * | 2014-04-11 | 2014-07-09 | 北京工业大学 | Floor distinguishing method based on RSSI difference between floors |
-
2016
- 2016-01-05 CN CN201610008500.9A patent/CN105764031A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102791025A (en) * | 2011-05-20 | 2012-11-21 | 盛乐信息技术（上海）有限公司 | Wireless fidelity (WIFI) based layered positioning system and implementing method |
| CN102892197A (en) * | 2012-09-07 | 2013-01-23 | 佳都新太科技股份有限公司 | Wireless fidelity (WIFI)-based indoor positioning system |
| CN103476109A (en) * | 2013-08-16 | 2013-12-25 | 武汉飞沃网络有限公司 | Indoor AP positioning method |
| CN103916821A (en) * | 2014-04-11 | 2014-07-09 | 北京工业大学 | Floor distinguishing method based on RSSI difference between floors |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018018861A1 (en) * | 2016-07-28 | 2018-02-01 | 华为技术有限公司 | Csi obtaining method, server, terminal and ap |
| US11121802B2 (en) | 2016-07-28 | 2021-09-14 | Huawei Technologies Co., Ltd. | CSI obtaining method, server, terminal, and AP |
| CN106686071A (en) * | 2016-12-16 | 2017-05-17 | 京信通信技术(广州)有限公司 | Positioning method and server |
| CN107040886A (en) * | 2017-01-03 | 2017-08-11 | 阿里巴巴集团控股有限公司 | The method and device that a kind of information is determined |
| CN107040886B (en) * | 2017-01-03 | 2020-04-24 | 阿里巴巴集团控股有限公司 | Information determination method and device |
| WO2018176952A1 (en) * | 2017-03-29 | 2018-10-04 | 京信通信系统（中国）有限公司 | Indoor positioning method and server |
| CN109188354A (en) * | 2018-08-29 | 2019-01-11 | 新华三技术有限公司 | A kind of wireless location method and device |
| CN108921258A (en) * | 2018-09-10 | 2018-11-30 | 丁宗海 | A kind of campus personnel intelligent management system and its management method |
| CN113242523A (en) * | 2021-03-23 | 2021-08-10 | 杭州医惠物联网科技有限公司 | Indoor double-frequency RFID positioning multi-floor switching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105764031A (en) | Wireless positioning method and wireless positioning device | |
| Lee et al. | Random forest and WiFi fingerprint-based indoor location recognition system using smart watch | |
| US9918297B2 (en) | Location measuring method and apparatus using access point for wireless local area network service and method for estimating location coordinate of access point | |
| US8618932B2 (en) | Device location detection | |
| KR102041449B1 (en) | Method and apparatus for obtaining location of user | |
| KR100372497B1 (en) | Method and system for estimating a subscriber's location in a wireless communication system service area | |
| CN103560813B (en) | Mobile terminal positioning method and device based on Bluetooth technology | |
| US9113293B1 (en) | Displaying location uncertainty of a mobile device | |
| CN102804184A (en) | Determining a location of a mobile device using a location database | |
| US9037489B2 (en) | Method and system for collecting access point information in linkage with mobile card payment system, and mobile communication terminal therefor | |
| CN101923118B (en) | Building influence estimation apparatus and building influence estimation method | |
| US7995988B2 (en) | System and method for identifying the position of mobile terminals | |
| US20120157115A1 (en) | Method and apparatus for updating access point information for location measurement | |
| CN103592622A (en) | A signal positioning system and a positioning method thereof | |
| US8238915B2 (en) | Systems and methods for locating communication terminals in cellular networks | |
| JP2016212080A (en) | Positioning method and device using base station | |
| CN107295477A (en) | A kind of localization method and mobile terminal | |
| CN104735781A (en) | Indoor positioning system and positioning method thereof | |
| CN103179659B (en) | Many base stations hybrid locating method and device | |
| CN108882165B (en) | Navigation method and device | |
| CN103249138B (en) | Localization method and device | |
| KR100619389B1 (en) | System and method for setting up the service zone based on bts in mobile communication network | |
| CN101634697A (en) | Method and device for updating positioning information and recording medium | |
| KR101745288B1 (en) | Three dimensional geofence service apparatus and method using indoor/outdoor location-aware mechanism by event-induced based on gps and wireless access point | |
| KR101328005B1 (en) | Method for setting criteria area to decide position and apparatus therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Applicant after: Xinhua three Technology Co., Ltd. Address before: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Applicant before: Huasan Communication Technology Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |