Off-line navigation system based on Bluetooth beacon and underground space coordinate algorithm

Abstract

The invention relates to the technical field of navigation, in particular to an off-line navigation system based on a Bluetooth beacon and an underground space coordinate algorithm, which does not depend on external network signals, can provide stable navigation service in underground space or other areas without network coverage, and can provide stable navigation service through combination of the Bluetooth beacon and a signal propagation model. High-precision user positioning is achieved, the system can adapt to environments and layouts of different underground spaces, navigation requirements, operability and user friendliness of different scales of underground spaces are met by adjusting arrangement of the Bluetooth beacons and a signal propagation model, visual operation and navigation guidance are provided through a graphical interface, and the system is convenient to use. According to the invention, high-precision navigation in a non-network coverage area is realized by combining a Bluetooth beacon technology and an underground space coordinate algorithm. The system has the characteristics of no need of network coverage, high-precision positioning, flexible adaptation, easy operability and the like, and solves the problem of low positioning precision of the existing off-line navigation system.

Description

Technical Field

[0001] The present invention relates to the field of navigation technology, and in particular to an offline navigation system based on Bluetooth beacons and underground space coordinate algorithms. Background Art

[0002] With the acceleration of urbanization, underground spaces such as subways, underground shopping malls, underground parking lots, etc. are increasing. In these areas, traditional GPS-based navigation systems often cannot provide effective navigation services due to limited signals.

[0003] However, the existing offline navigation system has problems such as low positioning accuracy and poor adaptability. Therefore, developing an offline navigation system that can provide high-precision navigation in underground space has important practical significance and application value. Summary of the invention

[0004] The purpose of the present invention is to provide an offline navigation system based on Bluetooth beacons and underground space coordinate algorithms, aiming to solve the problem of low positioning accuracy in existing offline navigation systems.

[0005] To achieve the above-mentioned object, the present invention provides an offline navigation system based on Bluetooth beacons and underground space coordinate algorithm, comprising a Bluetooth beacon arrangement module, a signal receiving module, a coordinate calculation module, a path planning module and a user interaction module, wherein the Bluetooth beacon arrangement module, the signal receiving module, the coordinate calculation module, the path planning module and the user interaction module are connected in sequence;

[0006] The Bluetooth beacon placement module is used to place Bluetooth beacons in the underground space and form a signal coverage network;

[0007] The signal receiving module is used to receive and parse the broadcast signal of the Bluetooth beacon to obtain the ID and location information of the beacon;

[0008] The coordinate calculation module calculates the distance and direction of the user equipment relative to each Bluetooth beacon according to the Bluetooth beacon signal strength and time difference received by the user equipment;

[0009] The path planning module is used to combine the map data of the underground space and the distance and orientation of the user device relative to each Bluetooth beacon, plan the optimal path using an algorithm, and update the user location and path information in real time;

[0010] The user interaction module is used to display the user's current location, target location and path information through a graphical interface, and provide an intuitive operation interface and navigation guidance.

[0011] Wherein, the Bluetooth beacon placement module includes a laying unit and a broadcasting unit, and the laying unit is connected to the broadcasting unit;

[0012] The laying unit is used to lay out beacons;

[0013] The broadcasting unit sends the ID and location information to the beacon.

[0014] Wherein, the signal receiving module includes a scanning unit and a receiving unit, and the scanning unit is connected to the receiving unit;

[0015] The scanning unit is used to scan the beacon ID and the location information;

[0016] The receiving unit is used to receive the scanned beacon ID and the location information.

[0017] Wherein, the coordinate calculation module includes a data analysis unit and a position calculation unit, and the data analysis unit and the position calculation unit are connected;

[0018] The data analysis unit performs analysis based on the scanned beacon ID and the location information to obtain signal strength and time difference;

[0019] The position calculation unit calculates the distance and direction of the Bluetooth beacon based on the signal strength and the time difference.

[0020] Wherein, the path planning module includes a collection unit and a generation unit, and the collection unit is connected to the generation unit;

[0021] The acquisition unit is used to acquire map data of the underground space;

[0022] The generating unit generates an optimal path based on an algorithm, map data of the underground space, and the distance and orientation of the user equipment relative to each Bluetooth beacon.

[0023] Wherein, the algorithm is the Dijkstra algorithm.

[0024] Wherein, the user interaction module includes a display unit and a voice prompt unit, and the display unit and the voice prompt unit are connected;

[0025] The display unit displays the user's current location, target location and optimal path based on the path;

[0026] The voice prompt unit is used to voice broadcast the live content of the display unit.

[0027] The present invention discloses an offline navigation system based on Bluetooth beacons and underground space coordinate algorithm, which comprises a Bluetooth beacon arrangement module, a signal receiving module, a coordinate calculation module, a path planning module and a user interaction module, wherein the Bluetooth beacon arrangement module, the signal receiving module, the coordinate calculation module, the path planning module and the user interaction module are connected in sequence; the Bluetooth beacon arrangement module is used to arrange Bluetooth beacons in the underground space and form a signal coverage network; the signal receiving module is used to receive and parse the broadcast signal of the Bluetooth beacon to obtain the ID and location information of the beacon; the coordinate calculation module is used to calculate the distance and azimuth of the user device relative to each Bluetooth beacon according to the Bluetooth beacon signal strength and time difference received by the user device; the path planning module is used to combine the map data of the underground space and the distance and azimuth of the user device relative to each Bluetooth beacon, plan the optimal path by using an algorithm, and update the user position and path information in real time; the user interaction module is used to display the user's current position, target position and path information through a graphical interface, and provide an intuitive operation interface and navigation guidance. The present invention does not rely on external network signals, can provide stable navigation services in underground spaces or other areas without network coverage, and realizes high-precision user positioning through the combination of Bluetooth beacons and signal propagation models, improves the accuracy and reliability of navigation, and can adapt to the environment and layout of different underground spaces. By adjusting the arrangement of Bluetooth beacons and signal propagation models, it can adapt to the navigation needs of underground spaces of different scales, easy to operate and user-friendly; through a graphical interface, intuitive operation and navigation guidance are provided, and users can easily use the system without professional knowledge. The present invention realizes high-precision navigation in areas without network coverage by combining Bluetooth beacon technology and underground space coordinate algorithms. The system has the characteristics of no need for network coverage, high-precision positioning, flexible adaptation and easy operability, thereby solving the problem of low positioning accuracy in existing offline navigation systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a structural schematic diagram of an offline navigation system based on Bluetooth beacons and underground space coordinate algorithms provided by the present invention.

[0030] Figure 2 It is a structural diagram of the Bluetooth beacon deployment module.

[0031] Figure 3It is a structural diagram of the signal receiving module.

[0032] Figure 4 It is a structural diagram of the coordinate calculation module.

[0033] Figure 5 It is a structural diagram of the path planning module.

[0034] Figure 6 It is a structural diagram of the user interaction module.

[0035] 1-Bluetooth beacon deployment module, 2-signal receiving module, 3-coordinate calculation module, 4-path planning module, 5-user interaction module, 6-maintenance module, 11-laying unit, 12-broadcasting unit, 21-scanning unit, 22-receiving unit, 31-data analysis unit, 32-position calculation unit, 41-collection unit, 42-generation unit, 51-display unit, 52-voice prompt unit, 53-input unit, 54-feedback unit. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] See also Figures 1 to 6 The present invention provides an offline navigation system based on Bluetooth beacons and underground space coordinate algorithms, including a Bluetooth beacon arrangement module 1, a signal receiving module 2, a coordinate calculation module 3, a path planning module 4 and a user interaction module 5, wherein the Bluetooth beacon arrangement module 1, the signal receiving module 2, the coordinate calculation module 3, the path planning module 4 and the user interaction module 5 are connected in sequence; the Bluetooth beacon arrangement module 1 is used to arrange Bluetooth beacons in the underground space and form a signal coverage network; the signal receiving module 2 is used to receive and parse the broadcast signal of the Bluetooth beacon to obtain the ID and location information of the beacon; the coordinate calculation module 3 is used to calculate the distance and orientation of the user device relative to each Bluetooth beacon according to the Bluetooth beacon signal strength and time difference received by the user device; the path planning module 4 is used to combine the map data of the underground space and the distance and orientation of the user device relative to each Bluetooth beacon, use the algorithm to plan the optimal path, and update the user position and path information in real time; the user interaction module 5 is used to display the user's current position, target position and path information through a graphical interface, and provide an intuitive operation interface and navigation guidance.

[0038] In this embodiment, the present invention does not rely on external network signals, and can provide stable navigation services in underground spaces or other areas without network coverage. Through the combination of Bluetooth beacons and signal propagation models, high-precision user positioning is achieved, the accuracy and reliability of navigation are improved, and it can adapt to the environment and layout of different underground spaces. By adjusting the arrangement of Bluetooth beacons and signal propagation models, it can adapt to the navigation needs of underground spaces of different scales, easy to operate and user-friendly; through a graphical interface, intuitive operation and navigation guidance are provided, and users can easily use this system without professional knowledge. The present invention realizes high-precision navigation in areas without network coverage by combining Bluetooth beacon technology and underground space coordinate algorithms. The system has the characteristics of no need for network coverage, high-precision positioning, flexible adaptation and easy operability, thereby solving the problem of low positioning accuracy in existing offline navigation systems.

[0039] Further, the Bluetooth beacon placement module 1 includes a laying unit 11 and a broadcasting unit 12, and the laying unit 11 and the broadcasting unit 12 are connected;

[0040] The laying unit 11 is used to lay out beacons;

[0041] The broadcasting unit 12 sends the ID and location information to the beacon.

[0042] In this embodiment, the laying unit 11 arranges beacons, and the broadcasting unit 12 sends ID and location information to the beacons. Bluetooth beacons are arranged in the underground space to form a signal coverage network.

[0043] Further, the signal receiving module 2 includes a scanning unit 21 and a receiving unit 22, and the scanning unit 21 and the receiving unit 22 are connected;

[0044] The scanning unit 21 is used to scan the beacon ID and the location information;

[0045] The receiving unit 22 is used to receive the scanned beacon ID and the location information.

[0046] In this embodiment, the scanning unit 21 scans the beacon ID and the location information, and the receiving unit 22 receives the scanned beacon ID and the location information, and receives and analyzes the broadcast signal of the Bluetooth beacon to obtain the beacon ID and location information.

[0047] Further, the coordinate calculation module 3 includes a data analysis unit 31 and a position calculation unit 32, and the data analysis unit 31 and the position calculation unit 32 are connected;

[0048] The data analysis unit 31 performs analysis based on the scanned beacon ID and the location information to obtain signal strength and time difference;

[0049] The position calculation unit 32 calculates the distance and direction of the Bluetooth beacon based on the signal strength and the time difference.

[0050] In this embodiment, the data analysis unit 31 analyzes the scanned beacon ID and the location information to obtain the signal strength and the time difference, and the location calculation unit 32 calculates the distance and the direction of the Bluetooth beacon based on the signal strength and the time difference. According to the offline navigation system, the distance and direction of the user equipment relative to each Bluetooth beacon are calculated according to the Bluetooth beacon signal strength and the time difference received by the user equipment.

[0051] Further, the path planning module 4 includes a collection unit 41 and a generation unit 42, and the collection unit 41 is connected to the generation unit 42;

[0052] The acquisition unit 41 is used to acquire map data of the underground space;

[0053] The generating unit 42 generates an optimal path based on an algorithm, map data of the underground space, and the distance and orientation of the user equipment relative to each Bluetooth beacon.

[0054] The algorithm is Dijkstra algorithm.

[0055] In this embodiment, the acquisition unit 41 acquires the map data of the underground space, and the generation unit 42 generates the optimal path based on the algorithm, the map data of the underground space, and the distance and orientation of the user device relative to each Bluetooth beacon. The optimal path is planned using advanced algorithms (such as A* algorithm, Dijkstra algorithm, etc.) in combination with the map data of the underground space and the user's target location, and the user location and path information are updated in real time.

[0056] Further, the user interaction module 5 includes a display unit 51 and a voice prompt unit 52, and the display unit 51 and the voice prompt unit 52 are connected;

[0057] The display unit 51 displays the user's current location, target location and optimal path based on the path;

[0058] The voice prompt unit 52 is used to voice broadcast the live content of the display unit 51.

[0059] In this embodiment, the display unit 51 displays the user's current position, target position and optimal path based on the path, and the voice prompt unit 52 voice broadcasts the live content of the display unit 51, displays the user's current position, target position and path information through a graphical interface, and provides an intuitive operation interface and navigation guidance;

[0060] The user interaction module 5 also includes an input unit 53 and a feedback unit 54. The input unit 53 is connected to the feedback unit 54. The input unit 53 is used for the user to input usage suggestions and questions; the feedback unit 54 is used to feed back the usage suggestions and questions input by the user to the management background.

[0061] Furthermore, the present invention provides an offline navigation system based on Bluetooth beacons and underground space coordinate algorithms, which also includes a maintenance module 6. The maintenance module 6 is respectively connected to the Bluetooth beacon layout module 1, the signal receiving module 2, the coordinate calculation module 3, the path planning module 4 and the user interaction module 5. The maintenance module 6 maintains the Bluetooth beacon layout module 1, the signal receiving module 2, the coordinate calculation module 3, the path planning module 4 and the user interaction module 5 based on the administrator's maintenance data.

[0062] In this embodiment, the maintenance module 6 performs software updates and maintenance on the Bluetooth beacon placement module 1 , the signal receiving module 2 , the coordinate calculation module 3 , the path planning module 4 and the user interaction module 5 based on the administrator's maintenance data.

[0063] The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm provided by the present invention has the following beneficial effects:

[0064] 1. The present invention does not rely on external network signals and can provide stable navigation services in underground spaces or other areas without network coverage;

[0065] Second, through the combination of Bluetooth beacons and signal propagation models, high-precision user positioning is achieved, the accuracy and reliability of navigation are improved, and it can adapt to the environment and layout of different underground spaces;

[0066] 3. Adapt to the navigation needs of underground spaces of different scales by adjusting the layout of Bluetooth beacons and the signal propagation model;

[0067] 4. Ease of operation and user-friendliness: The system provides intuitive operation and navigation guidance through a graphical interface, allowing users to easily use the system without professional knowledge.

[0068] What is disclosed above is only a preferred embodiment of the offline navigation system based on Bluetooth beacons and underground space coordinate algorithms of the present invention. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An offline navigation system based on Bluetooth beacons and underground space coordinate algorithm, characterized in that: It includes a Bluetooth beacon arrangement module, a signal receiving module, a coordinate calculation module, a path planning module and a user interaction module, wherein the Bluetooth beacon arrangement module, the signal receiving module, the coordinate calculation module, the path planning module and the user interaction module are connected in sequence; The Bluetooth beacon placement module is used to place Bluetooth beacons in the underground space and form a signal coverage network; The signal receiving module is used to receive and parse the broadcast signal of the Bluetooth beacon to obtain the ID and location information of the beacon; The coordinate calculation module calculates the distance and direction of the user equipment relative to each Bluetooth beacon according to the Bluetooth beacon signal strength and time difference received by the user equipment; The path planning module is used to combine the map data of the underground space and the distance and orientation of the user device relative to each Bluetooth beacon, plan the optimal path using an algorithm, and update the user location and path information in real time; The user interaction module is used to display the user's current location, target location and path information through a graphical interface, and provide an intuitive operation interface and navigation guidance.

2. The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm as claimed in claim 1, characterized in that: The Bluetooth beacon placement module includes a laying unit and a broadcasting unit, and the laying unit is connected to the broadcasting unit; The laying unit is used to lay out beacons; The broadcasting unit sends the ID and location information to the beacon.

3. The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm as claimed in claim 2, characterized in that: The signal receiving module includes a scanning unit and a receiving unit, and the scanning unit is connected to the receiving unit; The scanning unit is used to scan the beacon ID and the location information; The receiving unit is used to receive the scanned beacon ID and the location information.

4. The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm as claimed in claim 3, characterized in that: The coordinate calculation module includes a data analysis unit and a position calculation unit, and the data analysis unit is connected to the position calculation unit; The data analysis unit performs analysis based on the scanned beacon ID and the location information to obtain signal strength and time difference; The position calculation unit calculates the distance and direction of the Bluetooth beacon based on the signal strength and the time difference.

5. The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm as claimed in claim 4, characterized in that: The path planning module includes a collection unit and a generation unit, and the collection unit is connected to the generation unit; The acquisition unit is used to acquire map data of the underground space; The generating unit generates an optimal path based on an algorithm, map data of the underground space, and the distance and orientation of the user equipment relative to each Bluetooth beacon.

6. The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm as claimed in claim 5, characterized in that: The algorithm is Dijkstra algorithm.

7. The offline navigation system based on Bluetooth beacon and underground space coordinate algorithm as claimed in claim 6, characterized in that: The user interaction module includes a display unit and a voice prompt unit, and the display unit and the voice prompt unit are connected; The display unit displays the user's current location, target location and optimal path based on the path; The voice prompt unit is used to voice broadcast the live content of the display unit.

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