CN104869540A - Method and apparatus realizing position query - Google Patents
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Abstract
The invention relates to the field of electronic positioning, and provides a method and apparatus realizing a position query, for solving the problem of difficult positioning in an area in the prior art. The method is applied to a mobile terminal, and comprises the following steps: receiving Bluetooth signals sent in a broadcast mode by data transmission positioners arranged in a predetermined area, wherein the Bluetooth signals carry identification information of the data transmission positioners; according to the received Bluetooth signals, determining a data transmission positioner which is currently closest to the mobile terminal as a data transmission positioner where the mobile terminal currently resides, and obtaining first identification information of the data transmission positioner where the mobile terminal currently resides; and according to the first identification information, obtaining first position information corresponding to the data transmission positioner where the mobile terminal currently resides from a prestored data packet, and according to the first position information, determining and giving a prompt about a position where the mobile terminal is currently disposed. According to the scheme provided by the invention, the mobile terminal in the area is positioned by use of a Bluetooth wireless technology.
Description
Technical Field
The present invention relates to the field of electronic positioning, and in particular, to a method and an apparatus for implementing location query.
Background
How to realize the positioning in the region has important significance for improving the service efficiency of public service setting in application scenes such as stations, airports, hospitals, schools and the like.
For example, when a patient goes to a hospital, the patient is often lost due to the numerous departments of the hospital, which results in a great deal of time being wasted for the patient to determine the location of the patient and find the department where the patient is going.
Therefore, how to use the wireless network to achieve positioning in a region becomes a technical problem to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method and a device for realizing position inquiry, which utilize the Bluetooth wireless technology to realize positioning in an area.
In order to solve the above technical problem, an embodiment of the present invention provides a method for implementing location query, which is applied to a mobile terminal, and the method includes:
receiving a Bluetooth signal broadcast by a data transmission locator arranged in a preset area, wherein the Bluetooth signal carries identification information of the data transmission locator;
determining a data transmission locator which is closest to the mobile terminal at present according to the received Bluetooth signal, wherein the data transmission locator is used as a data transmission locator where the mobile terminal stays at present, and acquiring first identification information of the data transmission locator where the mobile terminal stays at present according to identification information of the data transmission locator carried by the Bluetooth signal;
and acquiring first position information corresponding to a data transmission locator where the mobile terminal currently stays in a pre-stored data packet according to the first identification information, and further determining and prompting the current position of the mobile terminal according to the first position information, wherein the data packet stores position information and identification information corresponding to all the data transmission locators respectively.
Wherein, the determining and prompting the current position of the mobile terminal according to the first position information comprises:
obtaining a coordinate value corresponding to the first position information according to the first position information;
obtaining a map interface of the preset area in the data packet, and finding a corresponding position in the map interface as the current position of the mobile terminal according to the coordinate value corresponding to the first position information;
and displaying the map interface, and prompting the current position of the mobile terminal in the map interface.
Wherein, before receiving the bluetooth signal broadcast by the data transmission locator arranged in the predetermined area, the method further comprises:
downloading an application containing the data packet from a server, wherein the position information and the identification information respectively corresponding to all data transmission locators contained in the data packet are configured and submitted to be stored in the server through a web end in advance;
the application is installed locally.
Wherein, according to the received bluetooth signal, determining the data transmission locator which is closest to the mobile terminal at present comprises:
by the following formula: distance ═ c + b × math.point (ratio, a)) × rssiCorrection, calculating the Distance between the mobile terminal and each data transmission locator;
determining a data transmission locator closest to the mobile terminal according to the calculated distance;
wherein a, b and c are preset constants; distance represents the Distance between the mobile terminal and the data transmission locator, ratio represents the ratio of the signal intensity value of the Bluetooth signal received by the mobile terminal from the data transmission locator to the signal intensity value of the data transmission locator at a preset Distance from the data transmission locator, rssi correction represents a preset intermediate value, and Math.
Wherein, if the ratio is less than or equal to 1, Distance is Math.power (ratio, m) rssiCorrection;
wherein,
d. e, f, g and m are all preset constants; abs represents the calculation of absolute values;
expressed as Math.pow (Math.abs (rssi) d)% pairAnd (6) remainder calculation.
In order to solve the above technical problem, an embodiment of the present invention further provides an apparatus for implementing location query, where the apparatus is applied to a mobile terminal, and the apparatus includes:
the receiving module is used for receiving a Bluetooth signal broadcast and sent by a data transmission locator arranged in a preset area, wherein the Bluetooth signal carries identification information of the data transmission locator;
the first determining module is used for determining a data transmission locator which is closest to the mobile terminal at present according to the received Bluetooth signal, taking the data transmission locator as the data transmission locator where the mobile terminal stays at present, and acquiring first identification information of the data transmission locator where the mobile terminal stays at present according to identification information of the data transmission locator carried by the Bluetooth signal;
and the second determining module is used for acquiring first position information corresponding to a data transmission locator where the mobile terminal currently stays in a pre-stored data packet according to the first identification information, and then determining and prompting the current position of the mobile terminal according to the first position information, wherein the data packet stores position information and identification information corresponding to all the data transmission locators respectively.
Wherein the second determining module comprises:
the first obtaining module is used for obtaining a coordinate value corresponding to the first position information according to the first position information;
a second obtaining module, configured to obtain a map interface of the predetermined area in the data packet, and find a corresponding position in the map interface according to a coordinate value corresponding to the first position information, where the corresponding position is located as a current position of the mobile terminal;
and the display module is used for displaying the map interface and prompting the current position of the mobile terminal in the map interface.
Wherein the apparatus further comprises:
the download module is used for downloading the application containing the data packet from a server, and the position information and the identification information which respectively correspond to all the data transmission locators contained in the data packet are configured and submitted to be stored in the server through a web end in advance;
an installation module for locally installing the application.
Wherein the first determining module comprises:
a calculation module to calculate the following formula: distance ═ c + b × math.point (ratio, a)) × rssiCorrection, calculating the Distance between the mobile terminal and each data transmission locator;
the determining submodule is used for determining a data transmission locator closest to the mobile terminal according to the calculated distance;
wherein a, b and c are preset constants; distance represents the Distance between the mobile terminal and the data transmission locator, ratio represents the ratio of the signal intensity value of the Bluetooth signal received by the mobile terminal from the data transmission locator to the signal intensity value of the data transmission locator at a preset Distance from the data transmission locator, rssi correction represents a preset intermediate value, and Math.
Wherein, if the ratio is less than or equal to 1, Distance is Math.power (ratio, m) rssiCorrection;
wherein,
d. e, f, g and m are all preset constants; abs represents the calculation of absolute values;
expressed as Math.pow (Math.abs (rssi) d)% pairAnd (6) remainder calculation.
The technical scheme of the invention has the following beneficial effects:
the method for realizing the position inquiry of the embodiment of the invention is applied to a mobile terminal, and firstly receives a Bluetooth signal broadcast and sent by a data transmission locator arranged in a preset area; then according to the received Bluetooth signal, determining a data transmission locator which is closest to the mobile terminal at present as a data transmission locator where the mobile terminal stays at present, and acquiring first identification information of the data transmission locator where the mobile terminal stays at present according to identification information of the data transmission locator carried by the Bluetooth signal; and finally, according to the first identification information, obtaining first position information corresponding to the data transmission locator where the mobile terminal stays currently from a pre-stored data packet, and further determining and prompting the current position of the mobile terminal according to the first position information. Therefore, the positioning of the mobile terminal in the area is realized by using the Bluetooth wireless technology.
Drawings
FIG. 1 is a flow chart of a method for implementing location query according to the present invention;
FIG. 2 is a schematic diagram of an application environment of a method for implementing location query according to the present invention;
fig. 3 is a schematic structural diagram of an apparatus for implementing location query according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The method of the embodiment of the invention realizes the positioning of the mobile terminal in the area by using the Bluetooth wireless technology, and improves the user experience.
As shown in fig. 1-2, a method for implementing location query according to an embodiment of the present invention is applied to a mobile terminal, and the method includes:
step 11, receiving a bluetooth signal broadcast by a data transmission locator arranged in a predetermined area, wherein the bluetooth signal carries identification information of the data transmission locator.
The data transmission locator can be installed at a predetermined position in a predetermined area (such as a hospital), and can periodically broadcast and send a Bluetooth signal for the mobile terminal of the user to receive and locate. A plurality of data transfer locators may be arranged, typically at different locations within a predetermined area, as desired. The identification information of the data transmission locator may be a MAC address or a device ID, etc.
And step 12, determining a data transmission locator which is closest to the mobile terminal at present according to the received Bluetooth signal, using the data transmission locator as the data transmission locator where the mobile terminal currently stays, and acquiring first identification information of the data transmission locator where the mobile terminal currently stays according to identification information of the data transmission locator carried by the Bluetooth signal.
And step 13, acquiring first position information corresponding to a data transmission locator where the mobile terminal currently stays in a pre-stored data packet according to the first identification information, and further determining and prompting the current position of the mobile terminal according to the first position information, wherein the data packet stores position information and identification information corresponding to all the data transmission locators respectively.
The method for realizing the position inquiry of the embodiment of the invention determines the data transmission locator closest to the mobile terminal at present as the data transmission locator staying at the mobile terminal at present according to the Bluetooth signal broadcast sent by the data transmission locator which is preset in a preset area and received by the mobile terminal; and acquiring first position information according to the first identification information of the data transmission locator where the mobile terminal currently stays, and further determining and prompting the current position of the mobile terminal according to the first position information. Therefore, the Bluetooth wireless technology is utilized, the mobile terminal is positioned in the area, the situation that a user wastes a large amount of time to determine the position of the user is avoided, and the user experience is effectively improved.
In an embodiment of the present invention, the step 13 may include:
step 131, obtaining a coordinate value corresponding to the first position information according to the first position information;
step 132, obtaining a map interface of the predetermined area in the data packet, and finding a corresponding position in the map interface as a current position of the mobile terminal according to the coordinate value corresponding to the first position information;
and step 133, displaying the map interface, and prompting the current position of the mobile terminal in the map interface.
At the moment, the current position of the mobile terminal can be clearly displayed to the user through the map interface, so that the user can conveniently and quickly realize positioning, the using effect of the user is improved, and the user experience is improved.
Specifically, in step 133, the current location of the mobile terminal may be highlighted in the map interface to prompt the user. For example, the current position of the mobile terminal can be highlighted in a map interface as red or green.
In an embodiment of the present invention, the mobile terminal may be various portable terminal devices such as a smart phone, a tablet computer/PAD of a user, and the mobile terminal may be capable of installing a specific application program and may implement receiving processing of a bluetooth signal through the application program. In addition, the mobile terminal can also communicate with the server through a wireless network (such as a Wifi/wireless local area network) or a mobile communication network (such as a 2G/3G/4G/LTE network).
Based on this, before step 11, the method may further include:
step 101, downloading an application containing the data packet from a server, wherein the position information and the identification information respectively corresponding to all data transmission locators contained in the data packet are configured and submitted to be stored in the server through a web end in advance;
step 102, installing the application locally.
At the moment, the position information and the identification information of the data transmission locator can be configured through the web terminal according to the requirements and uploaded to the server, and when the mobile terminal is used, a user only needs to download the application containing the data packet from the server and install the application locally, so that the use of the user is facilitated.
Further, the data packet further comprises a map interface of a predetermined area, and the mobile terminal can show the map interface to the user through the application. The plan of a preset area (such as a certain floor of a hospital) can be obtained, then the plan is processed and gridded through a web end, coordinate axes are established, the corresponding relation between the coordinates and the preset position of the preset area is established, and the coordinates and the preset position of the preset area are stored in a data packet.
In an embodiment of the present invention, the step 12 may include:
step 121, by the following formula: distance ═ c + b × math.point (ratio, a)) × rssiCorrection, calculating the Distance between the mobile terminal and each data transmission locator;
step 122, determining a data transmission locator closest to the mobile terminal according to the calculated distance;
wherein a, b and c are preset constants; distance represents the Distance between the mobile terminal and the data transmission locator, ratio represents the ratio of the signal intensity value of the Bluetooth signal received by the mobile terminal from the data transmission locator to the signal intensity value of the data transmission locator at a preset Distance from the data transmission locator, rssi correction represents a preset intermediate value, and Math.
Here, if ratio is less than or equal to 1, Distance is math.power (ratio, m) × rsi correction;
wherein,
d. e, f, g and m are all preset constants; abs represents the calculation of absolute values;
expressed as Math.pow (Math.abs (rssi) d)% pairAnd (6) remainder calculation.
At this time, considering that the signal strength sent by each data transmission locator is different, the data transmission locator closest to the mobile terminal at present can be accurately obtained through the formula.
The following describes specific embodiments of the present invention with reference to a hospital scene, and it should be noted that the present invention can be applied not only to a hospital scene, but also to any desired scene such as a school.
The method for realizing the position query is applied to the mobile terminal, firstly, the APP1 of the application program containing a data packet is downloaded from the server, and the APP1 is installed locally. The data packet comprises position information and identification information which are respectively corresponding to all data transmission locators arranged in a hospital, and map interfaces of all floors of the hospital.
When a mobile terminal user inquires the position of a mobile terminal, firstly, according to a Bluetooth signal received by the mobile terminal and sent by a data transmission locator broadcast, determining a data transmission locator which is closest to the mobile terminal at present as a data transmission locator where the mobile terminal currently stays, and acquiring first identification information of the data transmission locator where the mobile terminal currently stays according to identification information of the data transmission locator carried by the Bluetooth signal; then, the software development kit SDK1 of the mobile terminal APP1 queries, according to the first identification information, first location information corresponding to the first identification information, such as a 12-floor 102 ward, in the data packet, and obtains, according to the first location information, a coordinate value corresponding to the first location information, such as (x ═ 3, y ═ 4); then obtaining a map interface of the 12 floors of the hospital in the data packet, and finding a corresponding position in the map interface as the current position of the mobile terminal according to the coordinate value corresponding to the first position information; and finally, displaying a map interface through the SDK2 of the APP1, and highlighting the current position of the mobile terminal in the map interface to be red or green and the like so as to prompt the user.
The method for realizing the position inquiry of the embodiment of the invention realizes the positioning of the mobile terminal in the area by using the Bluetooth wireless technology, avoids the waste of a large amount of time for a user to determine the position of the user, and effectively improves the user experience.
As shown in fig. 3, an embodiment of the present invention further provides an apparatus for implementing location query, which is applied to a mobile terminal, and the apparatus includes:
the receiving module is used for receiving a Bluetooth signal broadcast and sent by a data transmission locator arranged in a preset area, wherein the Bluetooth signal carries identification information of the data transmission locator;
the first determining module is used for determining a data transmission locator which is closest to the mobile terminal at present according to the received Bluetooth signal, taking the data transmission locator as the data transmission locator where the mobile terminal stays at present, and acquiring first identification information of the data transmission locator where the mobile terminal stays at present according to identification information of the data transmission locator carried by the Bluetooth signal;
and the second determining module is used for acquiring first position information corresponding to a data transmission locator where the mobile terminal currently stays in a pre-stored data packet according to the first identification information, and then determining and prompting the current position of the mobile terminal according to the first position information, wherein the data packet stores position information and identification information corresponding to all the data transmission locators respectively.
The device for realizing position inquiry of the embodiment of the invention realizes the positioning of the mobile terminal in the area by using the Bluetooth wireless technology, avoids the waste of a large amount of time for a user to determine the position of the user, and effectively improves the user experience.
Wherein the second determining module comprises:
the first obtaining module is used for obtaining a coordinate value corresponding to the first position information according to the first position information;
a second obtaining module, configured to obtain a map interface of the predetermined area in the data packet, and find a corresponding position in the map interface according to a coordinate value corresponding to the first position information, where the corresponding position is located as a current position of the mobile terminal;
and the display module is used for displaying the map interface and prompting the current position of the mobile terminal in the map interface.
Wherein the apparatus further comprises:
the download module is used for downloading the application containing the data packet from a server, and the position information and the identification information which respectively correspond to all the data transmission locators contained in the data packet are configured and submitted to be stored in the server through a web end in advance;
an installation module for locally installing the application.
Wherein the first determining module comprises:
a calculation module to calculate the following formula: distance ═ c + b × math.point (ratio, a)) × rssiCorrection, calculating the Distance between the mobile terminal and each data transmission locator;
the determining submodule is used for determining a data transmission locator closest to the mobile terminal according to the calculated distance;
wherein a, b and c are preset constants; distance represents the Distance between the mobile terminal and the data transmission locator, ratio represents the ratio of the signal intensity value of the Bluetooth signal received by the mobile terminal from the data transmission locator to the signal intensity value of the data transmission locator at a preset Distance from the data transmission locator, rssi correction represents a preset intermediate value, and Math.
Wherein, if the ratio is less than or equal to 1, Distance is Math.power (ratio, m) rssiCorrection;
wherein,
d. e, f, g and m are all preset constants; abs represents the calculation of absolute values;
expressed as Math.pow (Math.abs (rssi) d)% pairAnd (6) remainder calculation.
The device for realizing position inquiry of the embodiment of the invention realizes the positioning of the mobile terminal in the area by using the Bluetooth wireless technology, avoids the waste of a large amount of time for a user to determine the position of the user, and effectively improves the user experience.
It should be noted that the apparatus for implementing location query is an apparatus corresponding to the method for implementing location query, where all implementation manners in the method embodiments are applicable to the embodiment of the apparatus, and the same technical effect can be achieved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A method for realizing location query is applied to a mobile terminal, and is characterized in that the method comprises the following steps:
receiving a Bluetooth signal broadcast by a data transmission locator arranged in a preset area, wherein the Bluetooth signal carries identification information of the data transmission locator;
determining a data transmission locator which is closest to the mobile terminal at present according to the received Bluetooth signal, wherein the data transmission locator is used as a data transmission locator where the mobile terminal stays at present, and acquiring first identification information of the data transmission locator where the mobile terminal stays at present according to identification information of the data transmission locator carried by the Bluetooth signal;
and acquiring first position information corresponding to a data transmission locator where the mobile terminal currently stays in a pre-stored data packet according to the first identification information, and further determining and prompting the current position of the mobile terminal according to the first position information, wherein the data packet stores position information and identification information corresponding to all the data transmission locators respectively.
2. The method according to claim 1, wherein the determining and prompting the current location of the mobile terminal according to the first location information comprises:
obtaining a coordinate value corresponding to the first position information according to the first position information;
obtaining a map interface of the preset area in the data packet, and finding a corresponding position in the map interface as the current position of the mobile terminal according to the coordinate value corresponding to the first position information;
and displaying the map interface, and prompting the current position of the mobile terminal in the map interface.
3. The method of claim 1, wherein prior to receiving the bluetooth signal broadcast by the data transmission locator located in the predetermined area, further comprising:
downloading an application containing the data packet from a server, wherein the position information and the identification information respectively corresponding to all data transmission locators contained in the data packet are configured and submitted to be stored in the server through a web end in advance;
the application is installed locally.
4. The method of claim 1, wherein determining the data transmission locator currently closest to the mobile terminal based on the received bluetooth signal comprises:
by the following formula: distance ═ c + b × math.point (ratio, a)) × rssiCorrection, calculating the Distance between the mobile terminal and each data transmission locator;
determining a data transmission locator closest to the mobile terminal according to the calculated distance;
wherein a, b and c are preset constants; distance represents the Distance between the mobile terminal and the data transmission locator, ratio represents the ratio of the signal intensity value of the Bluetooth signal received by the mobile terminal from the data transmission locator to the signal intensity value of the data transmission locator at a preset Distance from the data transmission locator, rssi correction represents a preset intermediate value, and Math.
5. The method of claim 4,
if ratio is less than or equal to 1, Distance is Math.power (ratio, m) x rssiCorrection;
wherein,
d. e, f, g and m are all preset constants; abs represents the calculation of absolute values;
expressed as Math.pow (Math.abs (rssi) d)% pairAnd (6) remainder calculation.
6. An apparatus for implementing location query, applied to a mobile terminal, the apparatus comprising:
the receiving module is used for receiving a Bluetooth signal broadcast and sent by a data transmission locator arranged in a preset area, wherein the Bluetooth signal carries identification information of the data transmission locator;
the first determining module is used for determining a data transmission locator which is closest to the mobile terminal at present according to the received Bluetooth signal, taking the data transmission locator as the data transmission locator where the mobile terminal stays at present, and acquiring first identification information of the data transmission locator where the mobile terminal stays at present according to identification information of the data transmission locator carried by the Bluetooth signal;
and the second determining module is used for acquiring first position information corresponding to a data transmission locator where the mobile terminal currently stays in a pre-stored data packet according to the first identification information, and then determining and prompting the current position of the mobile terminal according to the first position information, wherein the data packet stores position information and identification information corresponding to all the data transmission locators respectively.
7. The apparatus of claim 6, wherein the second determining module comprises:
the first obtaining module is used for obtaining a coordinate value corresponding to the first position information according to the first position information;
a second obtaining module, configured to obtain a map interface of the predetermined area in the data packet, and find a corresponding position in the map interface according to a coordinate value corresponding to the first position information, where the corresponding position is located as a current position of the mobile terminal;
and the display module is used for displaying the map interface and prompting the current position of the mobile terminal in the map interface.
8. The apparatus of claim 6, further comprising:
the download module is used for downloading the application containing the data packet from a server, and the position information and the identification information which respectively correspond to all the data transmission locators contained in the data packet are configured and submitted to be stored in the server through a web end in advance;
an installation module for locally installing the application.
9. The apparatus of claim 6, wherein the first determining module comprises:
a calculation module to calculate the following formula: distance ═ c + b × math.point (ratio, a)) × rssiCorrection, calculating the Distance between the mobile terminal and each data transmission locator;
the determining submodule is used for determining a data transmission locator closest to the mobile terminal according to the calculated distance;
wherein a, b and c are preset constants; distance represents the Distance between the mobile terminal and the data transmission locator, ratio represents the ratio of the signal intensity value of the Bluetooth signal received by the mobile terminal from the data transmission locator to the signal intensity value of the data transmission locator at a preset Distance from the data transmission locator, rssi correction represents a preset intermediate value, and Math.
10. The apparatus of claim 9,
if ratio is less than or equal to 1, Distance is Math.power (ratio, m) x rssiCorrection;
wherein,
d. e, f, g and m are all preset constants; abs represents the calculation of absolute values;
expressed as Math.pow (Math.abs (rssi) d)% pairAnd (6) remainder calculation.
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| CN108303074B (en) * | 2017-12-22 | 2022-03-11 | 康威通信技术股份有限公司 | Underground positioning navigation method and system based on electric power tunnel environment |
| CN112995918A (en) * | 2019-12-17 | 2021-06-18 | Oppo广东移动通信有限公司 | Positioning method, positioning device, storage medium and electronic equipment |
| CN112995918B (en) * | 2019-12-17 | 2022-12-13 | Oppo广东移动通信有限公司 | Positioning method, positioning device, storage medium and electronic equipment |
| CN115278872A (en) * | 2022-07-28 | 2022-11-01 | 歌尔科技有限公司 | Intelligent wearable device, positioning method, main control terminal and fixed place positioning system |
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