JP2021152492A - Position provision system - Google Patents

Abstract

To provide a position provision system for accurately providing a position in a premise.SOLUTION: A position provision system for providing a position to a portable terminal 30 having a camera and a display section includes a map storage section 11, a light emitting device 20 for data transmission, and light emitting devices 20 for position presentation. The map storage section 11 stores a map. The light emitting device 20 for data transmission transmits the map to the portable terminal 30. The plurality of light emitting devices 20 for position presentation transmit position information by a light emitting signal corresponding to a frame rate of the camera.SELECTED DRAWING: Figure 2

Description

The present embodiment relates to a position providing system that presents a position in a region where positioning accuracy by a positioning signal of a positioning satellite is poor.

A satellite positioning system is known as a typical system that provides a user's current position. This satellite positioning system receives signals from a plurality of navigation satellites whose positions and signal transmission times are known, and measures the current position based on the arrival time difference of each signal. Therefore, in order to improve the position accuracy, it is necessary to supplement the number of navigation satellites. In the tunnel, the signal from the navigation satellite is weak or unreachable, but since the shape of the tunnel is relatively simple, the position accuracy is supplemented by estimating the current position based on the speed and acceleration of the vehicle.

In recent years, mobile terminals equipped with antennas capable of receiving signals from navigation satellites have become widespread, and maps around the current position have become easily available due to improvements in communication speed. Therefore, pedestrians with mobile terminals have more opportunities to grasp their current positions using satellite positioning systems. The difference between a pedestrian and a vehicle is that it is complicated unlike the premises where vehicles such as tunnels pass, and pedestrians have more time and opportunity to stay in the premises where the signal from the navigation satellite is weak or unreachable. .. That is, pedestrians often stay on the premises of underground malls, department stores, shopping malls, exhibitions, airports, stadiums, large cruise ships, factories, buildings, etc., and seek to know their current positions on these premises.

In response to this demand, pedestrian self-contained navigation that estimates the position of a pedestrian using an acceleration sensor provided in a mobile terminal can be considered. Further, a communication base station positioning method has been proposed in which the positional relationship of base stations of communication radio waves such as WiFi is stored in a database and the position is calculated from the relationship of the radio wave strength emitted from each base station. Further, a beacon positioning method has been proposed in which a short-range wireless communication device such as Bluetooth is used as a beacon and a position is specified in the vicinity of the beacon by receiving radio waves from the beacon. A method has been proposed in which this beacon positioning method is developed and the distance from the beacon is estimated based on the radio wave intensity to further improve the accuracy of the position.

Japanese Unexamined Patent Publication No. 2016-70737

The premises where pedestrians stay are orders of magnitude more complex than tunnels, the movements of pedestrians are orders of magnitude more complex than vehicles, and the detected acceleration caused by the way pedestrians hold their mobile terminals. The accuracy of the current position is inferior in pedestrian self-sustaining navigation due to large unevenness.

A large number of various devices that emit radio waves are installed on the premises, and many pedestrians who come and go on the premises also have mobile terminals that emit radio waves. That is, a large number of radio waves are flying around the premises. Therefore, in the communication base station positioning method using the installed WiFi and the beacon positioning method using Bluetooth, the signal may be lost due to radio wave interference, or even if the signal is received, there are many errors and the data cannot be demodulated. Therefore, the position accuracy has not been improved.

An object of the present embodiment is to provide a position providing system capable of providing a position with high accuracy on the premises in order to solve the above problems.

In order to achieve the above object, the position providing system according to the present embodiment is a position providing system that provides a position to a mobile terminal having a camera and a display unit, and includes a map storage unit that stores a map and a map storage unit. It is characterized by including a transmission unit that transmits the map to the mobile terminal, and a plurality of position presentation light emitting devices that are installed at various places and transmit position information by a light emitting signal corresponding to the frame rate of the camera. do.

The transmission unit may be a data transmission light emitting device that transmits the map information by a light emitting signal corresponding to the frame rate of the camera.

The position-presenting light emitting device may have a light source and an opening that narrows the irradiation range of the light source. The position presenting light emitting device may transmit the position information by a light emitting signal represented by RGB ternary notation. Further, the position presenting light emitting device may transmit the position information by a light emitting signal represented by each gradation of RGB. Further, the position presenting light emitting device may transmit the position information by a light emitting signal represented by a blinking binary number.

Further, the position presenting light emitting device has a light source and a shutter that narrows the opening through which the light from the light source passes to various shapes, and transmits the position information by a light emitting signal represented by the shape of the light. You may. Further, the position presenting light emitting device has a light source, a plurality of openings formed at different positions through which light from the light source passes, and a shutter that opens and closes the openings individually, and the position information is transmitted at the position of the light. It may be transmitted by the represented light emission signal.

Further, the position presenting light emitting device may have a light source and a speaker, and may transmit the position information by a combination of a light emitting signal and a sound emitting signal.

The mobile terminal may include a person information storage unit that stores person characteristic information and a guide unit that guides the route based on the person characteristic information. The guide unit may guide in a language that matches the person characteristic information. Further, the mobile terminal may include a person information storage unit for storing person characteristic information, and the route setting unit may set the route based on the person characteristic information.

In the position presenting light emitting device, all the units may transmit the same emergency signal by the light emitting signal. In the position presenting light emitting device, all the units transmit the same emergency signal by the light emitting signal, and when the mobile terminal captures the emergency signal with the camera, the rescue signal transmits the position information immediately before the emergency signal by radio waves. A request control unit may be provided, and a rescue side display unit that displays the position information transmitted by the rescue request control unit on a map may be further provided.

It is a schematic diagram of the whole configuration of a position providing system. It is a block diagram which shows the detailed structure of the position providing system. It is a flowchart which shows the operation of a position providing system. It is a block diagram which shows the detailed structure of the mobile terminal of 1st Embodiment. It is a flowchart which shows the operation flow at the entrance of a premises. It is a flowchart which shows the operation flow during the route guidance. It is a schematic diagram which shows the operation of the position providing system. It is a schematic diagram which shows the 1st structure of a light emitting device. It is a schematic diagram which shows the 1st light emission signal. It is a schematic diagram which shows the 2nd light emission signal. It is a schematic diagram which shows the 3rd light emission signal. It is a schematic diagram which shows the 4th light emission signal. It is a schematic diagram which shows the 5th light emission signal. It is a schematic diagram which shows the 2nd configuration of a light emitting device and a mobile terminal. It is a block diagram which shows the detailed structure of the mobile terminal of 2nd Embodiment. It is a schematic diagram which shows the person characteristic information. It is a schematic diagram of the passage difficulty information. It is a schematic diagram which shows a map. It is a block diagram which shows the detailed structure of the position providing system which concerns on 3rd Embodiment. It is a block diagram which shows the detailed structure of the mobile terminal of 3rd Embodiment. It is a flowchart which shows the operation flow of an emergency signal transmission.

(First Embodiment)
The position providing system according to the present embodiment will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing a schematic configuration of the position providing system 1 of the present embodiment. The position providing system 1 shown in FIG. 1 provides the current position to the user of the mobile terminal 30. The position providing system 1 includes a management device 10 and a plurality of light emitting devices 20. The user has a mobile terminal 30 in which a program that cooperates with the location providing system 1 is installed.

The management device 10 is a so-called computer and controls the light emitting device 20. The light emitting device 20 is a lighting device capable of freely controlling light emission such as light emitting color, lighting interval, extinguishing interval, aperture shape or light amount. The management device 10 and the light emitting device 20 are connected to the LAN 100. Each light emitting device 20 is installed in an underground mall, a department store, a shopping mall, an exhibition, an airport, a stadium, a large cruise ship, a factory, a building, or the like. These premises are areas where the signals of the satellite positioning system are likely to be weak or unreachable. It is preferable that each light emitting device 20 is uniformly installed all over the premises and is installed at a key point in the premises.

The management device 10 sets the position information indicating the installation position of the light emitting device 20 in the light emitting device 20 via the LAN 100. The light emitting device 20 converts the set position information into a light emitting signal D1 and transmits the signal. Further, the management device 10 causes the light emitting device 20 installed at the entrance of the premises to transmit the map of the premises by adding the map of the premises via the LAN 100. The light emitting device 20 at the entrance of the premises also converts the map of the premises into a light emitting signal D1 and transmits it.

FIG. 2 is a block diagram showing a detailed configuration of the position providing system 1. As shown in FIG. 2, the management device 10 includes a map storage unit 11, a position database storage unit 12, a position setting unit 13, and a LAN transmission unit 14.

The map storage unit 11 is mainly configured to include storage such as an HDD and an SSD, and stores a map D2 in the premises. The location database storage unit 12 is mainly configured to include storage, and the location database is stored. The location database stores the IP address and the location information as a set. The IP address is assigned to the light emitting device 20 that is the transmission destination of the set position information. The position information indicates the installation position of the light emitting device 20 indicated by the paired IP addresses. Further, in the location database, entrance installation information indicating that the IP address is assigned to the light emitting device 20 located at the entrance of the premises is also added to indicate that the IP address is installed at the entrance of the premises.

The position setting unit 13 mainly includes a CPU, and transmits position information to each light emitting device 20 via the LAN transmission unit 14. Map D2 is also transmitted to the light emitting device 20 at the entrance of the premises. The LAN transmission unit 14 is a communication control board that controls data transmission / reception, generates a data frame including an IP address and position information or map information in addition to the IP address, converts the frame into an electric signal, TCP / IP, and the like. It is transmitted to the light emitting device 20 according to the communication standard of.

The light emitting device 20 includes a LAN receiving unit 21, a light emitting control unit 22, and a signal transmission LED 23. The LAN receiving unit 21 is a communication control board that controls data transmission / reception, samples an electric signal flowing through the LAN 100, converts it into digital data, and emits data included in the digital data when the assigned IP address is included. It is passed to the control unit 22.

The light emission control unit 22 mainly includes a CPU and controls the light emission of the signal transmission LED 23. The light emission control unit 22 converts the position information, the position information, and the map into the light emission signal D1 according to the rules by, for example, PWM control, and the signal transmission LED 23 emits light according to the light emission signal D1.

FIG. 3 is a flowchart showing an operation flow of such a position providing system 1. As shown in FIG. 3, the position setting unit 13 of the management device 10 reads the IP address and the position information combined with the IP address from the position database storage unit 12 (step S01). If the entrance installation information is added to the set of the IP address and the location information (step S02), the map D2 is also read from the map storage unit 11 (step S03). The LAN transmission unit 14 sends the data read by the position setting unit 13 to the LAN 100 with the IP address read together as the destination (step S04).

The LAN receiving unit 21 of the light emitting device 20 receives a data frame whose destination includes the assigned IP address (step S05). The light emission control unit 22 controls the signal transmission LED 23 according to the position information included in the data frame or the set of the position information and the map information (step S06). The signal transmission LED 23 emits light according to the control of the light emission control unit 22, and emits a light emission signal D1 indicating position information or a set of position information and map information (step S07).

As a result, the management device 10 transmits the position information indicating the installation position of the light emitting device 20 in the premises and the map D2 of the premises by an electric signal to the light emitting device 20 at the entrance of the premises through the LAN 100. The light emitting device 20 transmits the position information received from the management device 10 and the light emitting signal D1 indicating the map D2. Further, the management device 10 transmits, through the LAN 100, position information indicating the installation position of the light emitting device 20 in the premises to each light emitting device 20 other than the entrance of the premises by an electric signal. The light emitting device 20 other than the entrance of the premises transmits a light emitting signal D1 indicating the position information received from the management device 10.

FIG. 4 is a block diagram showing a detailed configuration of the mobile terminal. The mobile terminal 30 includes a camera, a display unit 33, an operation unit 341, a vibrator 352, and a computer including a CPU and a memory. The mobile terminal 30 further includes a camera control unit 312, an analysis unit 313, a map storage unit 321 and a route setting unit 342 and a guide unit 351 by means of software and a computer that cooperate with the position providing system 1.

The camera control unit 312 is configured to include an interface circuit of the CPU and the camera 311 to control the camera 311 and cause the camera to shoot at a predetermined frame rate. The specified frame rate is a multiple of the signal change rate of the light emission signal D1. That is, the camera control unit 312 controls the frame rate of the camera 311 so that all the codes of the light emission signal D1 can be captured.

The analysis unit 313 analyzes the light emission signal D1 captured by the camera 311 and extracts the contents. When the map D2 is included in the light emitting signal D1, the map D2 is stored in the map storage unit 321 including the memory.

The display unit 33 is a screen such as a liquid crystal display or an organic EL display. The display unit 33 displays the map D2 stored in the map storage unit 321. Further, when the position information is included in the light emission signal D1 analyzed by the analysis unit 313, the display unit 33 indicates the position on the map D2 indicated by the position information.

The route setting unit 342 is configured to include a CPU, and sets a route to a destination input by using the operation unit 341. The operation unit 341 is a user interface such as a touch panel. The display unit 33 also displays the route set by the route setting unit 342.

The guide unit 351 is configured to include a CPU, and provides route guidance along a route set by the route setting unit 342. Typically, the guidance unit 351 displays a message indicating a direction or action on the display unit 33, provides voice guidance using a speaker provided in the mobile terminal 30, or vibrates the vibrator 352 to pay attention to the owner. pull.

FIG. 5 is a flowchart showing the operation of the mobile terminal 30 in response to the position providing system 1 at the entrance of the premises. As shown in FIG. 5, the user inputs an operation to download the map D2 using the operation unit 341 at the entrance of the premises (step S11). In response to this operation, the camera control unit 312 activates the camera 311 (step S12), and the camera 311 captures an image at a predetermined frame rate (step S13). When the specified frame rate is n times the signal change rate of the light emitting signal D1, the analysis unit 313 detects one image showing the light emission of the light emitting device 20, and samples image frames from the image every n specified number of images. (Step S14).

Further, the analysis unit 313 converts the sampled image frame arrangement into binary data according to the rules (step S15). At the entrance of the premises, the map D2 and the location information are included in the data. The analysis unit 313 divides the data into the map D2 and the position information (step S16), and stores the map D2 in the map storage unit 321 (step S17). If the data does not include the map D2, an error or the like may be displayed on the display unit 321. Further, a version may be attached to the map D2, and if the map D2 is already stored in the map storage unit 321, the versions may be compared to determine the necessity of overwriting.

The display unit 33 displays the map D2 stored in the map storage unit 321 (step S18). Further, the display unit 33 indicates the current position on the map D2 indicated by the position information extracted by the analysis unit 313 (step S19).

FIG. 6 is a flowchart showing the operation of the mobile terminal 30 in response to the position providing system 1 on the premises. When the destination is input using the operation unit 341 and the route to the destination is set by the route setting unit 342 (step S21), the camera 311 captures an image at a predetermined frame rate (step S22). ). When the specified frame rate is n times the signal change rate of the light emitting signal D1, the analysis unit 313 detects one image showing the light emission of the light emitting device 20, and samples image frames from the image every n specified number of images. (Step S23).

Further, the analysis unit 313 converts the arrangement of the sampled image frames into position information according to the rules (step S24). The display unit 33 describes the current position on the map D2 indicated by the position information extracted by the analysis unit 313 (step S25).

The guide unit 351 compares the position information extracted by the analysis unit 313 with that immediately before (step S26), and although the position information has changed from immediately before (step S26, Yes), the position information is on the destination side along the route. When the position has not changed to (step S27, No), a message for guiding the user to return to the route is displayed on the display unit 33 (step S28). Then, the guide unit 351 vibrates the vibrator 352 (step S29), draws attention to see the message, and resets the route toward the destination (step S21). When the route is reset, step S22 and subsequent steps are repeated again.

On the other hand, if the position information has changed to the position on the destination side along the route (step S27, Yes) but has not yet reached the destination (step S30, No), the position information by the camera 311 Step S22 and subsequent steps for taking in the above are repeated. If it has arrived at the destination (step S30, Yes), the process ends.

FIG. 7 is a schematic view showing the operation of such a position providing system 1. A user who has a mobile terminal 30 enters the premises where the position providing system 1 is installed. The user operates the mobile terminal 30 at the entrance to download the map D2.

In the location database storage unit 12, the entrance installation information is attached to the IP address assigned to the light emitting device 20 installed at the entrance of the premises. Therefore, the management device 10 sets the position information indicating the installation position and the map D2 with respect to the light emitting device 20 installed at the premises entrance, and the light emitting device 2 at the premises entrance sets the position information. And the light emitting signal D1 indicating the map D2.

The light emitting signal D1 captured by the camera 311 of the mobile terminal 30 at the entrance of the premises is decomposed into the position information and the map D2 by the analysis unit 313, and the map D2 is stored in the map storage unit 321. Then, the map D2 stored in the map storage unit 321 is displayed on the display unit 33 of the mobile terminal 30, and the current position mark D3 is displayed at the position indicated by the received position information. When the user operates the operation unit 341 to input the destination, the route is set by the route setting unit 342, and the route line D5 and the destination mark D4 indicating the set route are displayed.

The management device 10 sets position information indicating the installation position of the light emitting device 20 in the premises according to the position database for each light emitting device 20 other than the entrance in the premises. The light emitting signal D1 captured by the camera 311 of the mobile terminal 30 other than the entrance of the premises is converted into position information by the analysis unit 313, and the position of the current position mark D3 is updated.

As a result of analyzing the light emission signal D1, when it is confirmed by the guide unit 351 that the vehicle is out of the route, the guide unit 351 vibrates the vibrator 352 to attract attention to the mobile terminal 30 and return to the route toward the destination. The message D6 prompting the action is displayed on the display unit 33. Further, the route setting unit 342 resets the route toward the destination and causes the display unit 33 to display the new route line D5.

As described above, in this position providing system 1, light emitting devices 20 are installed in various places in the premises. Each light emitting device 20 transmits the position information by the light emitting signal D1. Since the light emitting device 20 transmits the light emitting signal D1, it is unlikely to interfere with radio waves such as WiFi and Bluetooth transmitted by the mobile terminal of another person on the premises and other devices installed on the premises. Therefore, the mobile terminal 30 does not receive a signal whose error cannot be corrected, and the communication is not interrupted. Therefore, it is possible to prevent the accuracy of the position information provided by the position providing system 1 from deteriorating.

In the position providing system 1, in order to further improve the accuracy of the provided position, it is preferable to arrange the light emitting devices 20 densely. However, if both light emitting signals D1 of the adjacent light emitting devices 20 are captured by the camera 311, a data string in which both light emitting signals D1 are mixed is extracted, and there is a possibility that correct position information cannot be extracted. Therefore, as shown in FIG. 8, the illumination range E2 of the signal transmission LED 23 can be narrowed down to reduce the area where both emission signals D1 of the adjacent light emitting devices 20 overlap.

In the light emitting device 20 shown in FIG. 8, the signal transmission LED 23 is covered with a cover 25a having a small opening 25 formed therein, and the illumination range E2 is narrowed by the opening 25. When the light emitting signal D1 of the light emitting device 20 is received, it means that the mobile terminal 30 exists within the narrowed illumination range E2, and rather the position accuracy can be improved. The light emitting device 20 also serves as a lighting fixture, and white LEDs 24 are dispersedly arranged around the signal transmission LED 23 to illuminate the premises with a wide irradiation range E1.

When the light emitting devices 20 can be arranged densely, the amount of data for expressing the position information increases. Alternatively, when the premises have multiple layers and a large area as in a large-scale shopping mall, the number of light emitting devices 20 arranged increases, so that the amount of data for expressing the position information increases. However, the transmission speed of the light emission signal D1 is regulated by the frame rate of the camera 311. Therefore, in order to completely transmit the position information within the time when the owner of the mobile terminal 30 passes through the illumination range E2 of the light emitting device 20, the position providing system 1 transmits the following light emitting signal D1.

FIG. 9 is a first example showing the light emission signal D1. As shown in FIG. 9, the light emitting signal D1 is represented by the ternary notation of R (red), G (green) and B (blue). That is, the light emission control unit 22 converts the position information, the position information, and the set of the map D2 into RGB ternary representation, and transmits the light emission signal D1 while changing the signal transmission LED 23 to any of RGB. Compared with the case of transmitting a data string expressed in binary notation, the number of data of the light emission signal D1 is reduced, and detailed position information can be transmitted in a short time.

FIG. 10 is a second example showing the light emission signal D1. As shown in FIG. 10, the light emitting signal D1 is represented by R (red), G (green), B (blue) and extinguishing quaternary notation. That is, the light emission control unit 22 converts the position information, the position information, and the set of the map D2 into RGB and the quaternary representation of turning off the lights, and changes the signal transmission LED 23 to either turn on or off the RGB. The light emission signal D1 is transmitted. Compared with the case of transmitting the data string expressed in the binary system, the number of data of the light emission signal D1 is reduced, and more detailed position information can be transmitted in a shorter time.

FIG. 11 is a third example showing the light emission signal D1. As shown in FIG. 11, the light emitting signal D1 is represented by a combination of 8 gradations of R (red), 8 gradations of G (green), and 8 gradations of B (blue). That is, the light emission control unit 22 transmits the light emission signal D1 while converting the position information and the set of the position information and the map D2 into 256 colors and changing the signal transmission LED 23 to any of the 256 colors. Compared with the case of transmitting the data string expressed in the binary system, the number of data of the light emission signal D1 is reduced, and more detailed position information can be transmitted in a shorter time.

FIG. 12 is a fourth example showing the light emission signal D1. As shown in FIG. 12, the light emitting device 20 arranges a shutter 26 capable of deforming the shape of the opening 25 in front of the signal transmission LED 23. The shutter 26 narrows the opening 25 into three types of shapes, for example, a circle, a triangle, and a quadrangle. Therefore, the light emission signal D1 is expressed by further adding a combination of the shapes of the objects formed by the light reflected in the image frame. For example, the emission signal D1 is expressed in a total of 9 bases by adding RGB color changes to three types of shapes.

The light emission control unit 22 converts the set of position information and position information and the map D2 into RGB and a total of nine-ary representation of the shape of light, lights the signal transmission LED 23 in RGB, and the shutter 26 changes the opening 25. While transmitting the light emission signal D1. The analysis unit 313 analyzes the light emission signal D1 by distinguishing the shape of the object reflected in the image frame in addition to the color of the image frame.

FIG. 13 is a fifth example showing the light emission signal D1. As shown in FIG. 13, the light emitting device 20 arranges a plurality of openings 25 in front of the signal element LED 23, and also arranges a shutter 26 that opens and closes the plurality of openings 25. For example, the opening 25 is formed in four directions. The shutter 25 closes the other opening 25, leaving one in four directions. Therefore, the light emission signal D1 is expressed by further adding a combination of the positions of the light reflected in the image frame. For example, the emission signal D1 is expressed in a total of duodecimal notation by adding RGB color changes to three types of shapes.

The light emission control unit 22 converts the set of position information and position information and the map D2 into RGB and the position of the opening 25 in a total duodecimal representation, lights the signal transmission LED 23 in RGB, and further opens the opening 25 in which the shutter 26 opens. The light emission signal D1 is transmitted while changing. The analysis unit 313 analyzes the light emission signal D1 by discriminating the position of the object reflected in the image frame in addition to the color of the image frame. The opening 25 is not limited to one, and a combination of positions of the openings 25 may be added.

FIG. 14 is a fifth example showing the light emission signal D1. As shown in FIG. 14, the light emitting device 20 further includes a speaker 27. On the other hand, the mobile terminal 30 includes a microphone 314. The signal transmitted by the light emitting device 20 is combined with the sound emitted signal of the speaker 27 in addition to the light emitting signal D1. The microphone 314 collects the sound emission signal output from the speaker 27. The analysis unit 313 analyzes the sound emission signal of the speaker 27 in addition to the light emission signal D1, and converts the combined signal of the light emission signal D1 and the sound emission signal into position information.

In this location providing system 1, the map D2 is downloaded at the entrance of the premises, but the mobile terminal 30 capable of communicating by radio waves accesses the management terminal 10 on the Internet and downloads the map D2 using radio waves. You may let it. In this case, instead of the light emitting device 20 at the entrance of the premises, or in addition to the light emitting device 20 at the entrance of the premises, the management terminal 10 may be provided with a transmission unit such as a network interface card capable of transmitting the map D2 via the Internet. good. Further, since the map D2 is less requested in real time than the location information, a WiFi or Bluetooth communication device may be installed at the entrance of the premises to serve as a transmission unit for transmitting the map D2.

The irradiation range E2 is narrowed down and the shape of the opening 25 is used as one of the codes of the light emitting signal D1, but for example, each of the adjacent light emitting devices 20 may be fixedly narrowed down to the specified shape of the opening 25. .. As a result, even if the irradiation ranges E2 overlap, the light emission signal D1 can be sorted according to the shape of the object reflected in the image frame. In this case, the position database storage unit 12 stores the shape information of the opening 25 in addition to the set of the IP address and the position information. The position setting unit 13 also transmits the shape information of the opening 25 to the light emitting device 20, and the light emitting control unit 22 of the light emitting device 20 sets the shape of the opening 25 according to the shape information.

Further, when a plurality of light emission signals D1 are captured at the same time, they may be separated according to the intensity of light. When the light emitting signal D1 is separated by the light intensity, the user is closer to the light emitting device 20 where the light intensity is increasing, and the user is far from the light emitting device 20 where the light intensity is weakening. , The display unit 33 may display an arrow indicating the traveling direction on the map D2.

Further, although the route setting unit 341 is provided on the mobile terminal 30 side in the present embodiment, it may be provided on the management device 30 side. In this case, the mobile terminal 10 transmits the destination input by the operation unit 341 to the position providing system 1 through the mobile phone line, WiFi or Bluetooth. The location providing system 1 includes a communication unit capable of transmitting and receiving these radio wave signals, or a communication unit capable of transmitting and receiving signals by combining these wireless lines and an Internet network, and receives a destination from the mobile terminal 10. Then, the route setting unit 341 on the management device 10 side creates a route, and transmits the created route to the mobile terminal 30.

As described above, the location providing system 1 is installed in various places, such as a map storage unit 11 that stores the map D2, a transmission unit such as a light emitting device 20 at the entrance of the premises that transmits the map D2 to the mobile terminal 30, and cameras. A plurality of position-presenting light-emitting devices 20 for transmitting position information by a light-emitting signal D1 corresponding to the frame rate of 311 are provided. As a result, even if the signal of the navigation satellite is weak or unreachable, the position information can be sent to the mobile terminal 30 without causing radio wave interference. Therefore, the position accuracy on the premises can be improved.

The light emitting device 20 for position presentation has a signal transmission LED 23 as a light source and an opening 25 for narrowing the irradiation range E2 of the light source. As a result, the overlapping range of the irradiation ranges E2 of the adjacent light emitting devices 20 can be reduced. Therefore, the light emitting devices 20 can be arranged densely, and the position accuracy in the premises can be further improved.

The light emitting device 20 for position presentation transmits the position information by the light emitting signal D1 represented by RGB ternary notation. Further, the position information is transmitted by the light emitting signal D1 represented by each gradation of RGB. In addition, the position information is transmitted by the light emitting signal D1 represented by the blinking binary number. Further, it has a shutter 26 for narrowing the opening 25 through which the light from the signal transmission LED 23 as a light source passes to various shapes, and the position information is transmitted by the light emitting signal D1 represented by the shape of the light. Further, it has a plurality of openings 25 formed at different positions and a shutter 26 that opens and closes the openings individually, and the position information is transmitted by the light emitting signal D1 represented by the position of the light. In addition, a speaker 27 was added so that the position information was transmitted by the combination of the light emission signal D1 and the sound emission signal. Alternatively, the position information is transmitted by the light emission signal D1 expressed by a combination of two or more of these.

As a result, even when a large number of light emitting devices 20 are required, it can be adjusted so as to emit a unique light emitting signal D1, and the effectiveness of improving the position accuracy in the premises is improved.

(Second Embodiment)
Next, the position providing system 1 of the second embodiment will be described in detail with reference to the drawings. The same configuration or the same function as that of the first embodiment is designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 15 is a block diagram showing the configuration of the mobile terminal 30 of the second embodiment. As shown in FIG. 15, the mobile terminal 30 further includes a personal feature information storage unit 322. The person feature information storage unit 322 is mainly configured to include a memory, and the person feature information is stored. The operation unit 341 accepts the input of the person characteristic information. As shown in FIG. 16, this person characteristic information shows the characteristics of the user of the mobile terminal 30. This person characteristic information is composed of the language used when the guide unit 351 guides the route and the walking difficulty information used for the route setting by the route setting unit 342. Examples of walking difficulty information include wheelchairs, elderly people who require a cane, pregnant women, and the like.

The map D2 is accompanied by information on difficulty in passing. FIG. 17 is a schematic diagram showing information on difficulty in passing. Difficult-to-pass information consists of location information and passability for each personal feature information. That is, it indicates whether or not the part indicated by the position information can pass through for each person characteristic information. Passability can be expressed not only by possible or additional information, but also by information that allows passage but recommends avoidance. In the case of avoidance recommendation, the time required for passage is attached as cost information.

The route setting unit 342 sets the route by referring to the person characteristic information of the person characteristic information storage unit 322 and the passage difficulty information attached to the map D2. FIG. 18 is a schematic diagram showing a route set based on various personal feature information. As shown in FIG. 18, the map D2 shows various facilities such as stairs, escalators, and elevators in pictogram D7. Therefore, the map D2 is simple and easy to see, and can be grasped even by glancing at the screen while walking.

FIG. 18A shows a case where there is no particular walking difficulty information in the person characteristic information, in other words, a case where the user is a healthy person. In this case, the route line D5 extends beyond the pictogram D7 indicating the stairs toward the destination. That is, in the case of a healthy person, the route setting unit 342 sets the shortest route.

FIG. 18B shows a case where the person characteristic information indicates an elderly person. The walking difficulty information of the person characteristic information and the passage difficulty information of the stairs position are compared. Since stairs are recommended to be avoided, the location of the stairs is excluded from the nodes that can be reached to the destination. Then, as a result of the route search, the staircase position is avoided, and the route line D5 extends to the route represented by the pictogram D7 of the adjacent escalator.

As shown in FIGS. 18B to 18D, the display unit 33 hides the path other than the path on which the path line D5 extends with the mask D8. The mask D8 makes it easier to see the map D2, and the route can be grasped in a shorter time while walking.

When setting the route, the operation unit 341 may be used to input variable conditions such as a desired arrival time, a boarding time, or a start time. The route setting unit 342 sets the route in consideration of these fluctuation conditions. FIG. 18C shows a case where the person characteristic information indicates an elderly person. The walking difficulty information of the person characteristic information and the passage difficulty information of the stairs position are compared. In the initial search stage, the stairs are recommended to be avoided, so the position of the stairs is excluded from the nodes that can be reached to the destination.

Then, the cost incidental to the link on the route is added, and the arrival time by the route excluding the position of the stairs is calculated. If this arrival time exceeds the desired arrival time, boarding time, or start time, the process proceeds to the re-search stage, the stairs position recommended for avoidance is incorporated as a passable node, and the route is searched again. Then, the cost incidental to the link on the route and the cost at the position of the stairs are added to calculate the arrival time. If this arrival time is earlier than the desired arrival time, boarding time, or start time, the stairs are selected even if the person characteristic information is elderly.

FIG. 18D shows a case where the person characteristic information indicates a person using a wheelchair. The walking difficulty information of the person characteristic information and the passage difficulty information of the stairs position are compared. Since the information on the difficulty of passing through the positions of the stairs and the escalator cannot be passed, the positions of the stairs and the escalator are excluded from the nodes that can be reached to the destination. Then, as a result of the route search, the positions of the stairs and the escalator are avoided, and the route line D5 extends to the route represented by the pictogram D7 of the elevator.

The guidance unit 342 matches the textual guidance with the language used for the person characteristic information, and the voice guidance using the speaker 27 with the language used for the person characteristic information.

As described above, the mobile terminal 30 includes the person information storage unit 322 that stores the person characteristic information, and the route setting unit 342 sets the route based on the person characteristic information. The position providing system 1 that provides position information by the light emitting device 20 is compatible with a person having a long staying time in the irradiation range E2 and a slow moving speed. That is, it is compatible with people who move slowly, such as wheelchairs, the elderly, and pregnant women. Therefore, by setting the route based on the person characteristic information, it is possible to set a comfortable route for these persons.

(Third Embodiment)
Next, the position providing system 1 of the third embodiment will be described in detail with reference to the drawings. The same configurations or the same functions as those of the first or second embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. FIG. 19 is a block diagram showing a detailed configuration of the position providing system 1. Further, FIG. 20 is a block diagram showing a detailed configuration of the mobile terminal 30.

As shown in FIG. 19, the management device 10 further includes an emergency control unit 15. The emergency control unit 15 is mainly configured to include a CPU, receives an emergency command, causes the LAN transmission unit 14 to transmit an emergency signal by multicast or broadcast, and sets the emergency signal in all light emitting devices 20. The total light emitting device 20 transmits a light emitting signal D1 indicating an emergency signal.

The emergency command may be input using an operation unit such as a keyboard or a mouse connected to the management device 10, or may be transmitted via a network to which the management device 10 is connected. The emergency command through the network may be sent in response to an operation on another computer connected to the network, or may be sent by a premises monitoring device such as a fire alarm.

The management device 10 further includes a receiving unit 16, a rescue processing unit 17, and a display unit 18. The receiving unit 16 receives a signal including position information via a mobile phone line, communication conforming to a wireless communication standard such as WiFi, or wired communication such as LAN (via a network hub or the like). The rescue processing unit 17 mainly includes a CPU, and causes the display unit 18 to display a map D2 showing a position indicated by the position information received by the receiving unit 16. The display unit 18 is a monitor such as a liquid crystal display or an organic EL display.

As shown in FIG. 20, the mobile terminal 30 further includes a rescue-requiring control unit 361 and a radio wave transmission unit 362. When the rescue-requiring control unit 361 receives an emergency signal from the light emitting signal D1, it drives various interfaces of the mobile terminal 30 to notify evacuation. For example, the display unit 33 displays a message indicating an emergency. The vibrator 352 vibrates. The speaker included in the mobile terminal 30 emits a message calling for evacuation in various languages.

The radio wave transmission unit 362 is composed of a communication control board conforming to a wireless communication standard such as a mobile phone line or WiFi. The rescue-requiring control unit 361 transmits a radio wave signal indicating position information via a radio wave transmission unit 362. The location information is the latest location information received immediately before receiving the emergency signal.

The rescue-requiring control unit 361 may browse the person characteristic information, and if the person characteristic information satisfies a certain level, may transmit a radio signal indicating the position information. A radio wave signal indicating the position information may be transmitted regardless of the person characteristic information, but in that case, the walking difficulty information may be attached to the position information among the person characteristic information.

FIG. 21 is a flowchart showing the operation of the position providing system 1. As shown in FIG. 21, in the management device 1, when the emergency control unit 15 receives an input of an emergency command (step S31), the emergency control unit 15 causes all the light emitting devices 20 to transmit an emergency signal (step S32). When the LAN receiving unit 21 of the light emitting device 20 receives the emergency signal (step S33), the light emitting control unit 22 controls the signal transmission LED 23 according to the emergency signal (step S34), and the signal transmission LED 23 indicates the light emitting signal D1 indicating the emergency signal. To send.

In the mobile terminal 30 that captures the light emitting signal D1 indicating an emergency signal with the camera 311 (step 36), as a result of the analysis of the analysis unit 313, if the light emitting signal D1 is an emergency signal (step S37, Yes), the rescue required control unit 361 controls to notify the emergency (step S38). In addition, the rescue-requiring control unit 361 controls the radio wave transmission unit 362 to transmit the position information acquired immediately before the emergency signal by the analysis unit 313 to the management device 10 (step S39).

When the receiving unit 16 receives the position information in the management device 10 (step S40), the rescue processing unit 17 causes the display unit 18 to display the map D2 marked with the position indicated by the position information (step S41). A rescuer such as a guard who sees the map D2 displayed on the display unit 18 can know the position of a person on the premises by looking at the mark on the map D2.

If the rescue-requiring control unit 361 browses the personal feature information and transmits a radio signal indicating a position signal when the personal feature information satisfies a certain level, the position of the mark requires rescue. Become a person. When the walking difficulty information is attached to the position information, the mark indicating the location of the person whose walking difficulty information is above a certain level may be displayed so as to be distinguished from the other marks.

As described above, in the position presenting light emitting device 20, all the machines transmit the same emergency signal by the light emitting signal D1. As a result, the location providing system 1 can also call for an emergency.

Further, in the light emitting device 20 for position presentation, all the machines transmitted the same emergency signal by the light emitting signal D1. The mobile terminal 30 is provided with a rescue-requiring control unit 361 that transmits the position information immediately before the emergency signal by radio waves when the emergency signal is captured by the camera 311. Then, the rescue side display unit 18 for displaying the position information transmitted by the rescue-requiring control unit 361 on the map D2 is further provided. As a result, rescuers such as security guards of the facility can grasp the position of the person on the premises. Further, if the person characteristic information 322 is attached to the position information and transmitted, the priority of rescue can be grasped.

(Other embodiments)
Although the embodiment according to the present invention has been described in the present specification, this embodiment is presented as an example and is not intended to limit the scope of the invention. The above-described embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. The embodiments and modifications thereof are included in the scope and the gist of the invention as well as the invention described in the claims and the equivalent scope thereof.

1 Location providing system 10 Management device 11 Map storage unit 12 Position database storage unit 13 Position setting unit 14 LAN transmission unit 15 Emergency control unit 16 Reception unit 17 Rescue processing unit 18 Display unit 20 Light emitting device 21 LAN receiving unit 22 Light emission control unit 23 Signal transmission LED
24 white LED
25 Aperture 25a Cover 26 Shutter 27 Speaker 30 Mobile terminal 311 Camera 312 Camera control unit 313 Analysis unit 314 Microphone 321 Map storage unit 322 Person feature information storage unit 33 Display unit 341 Operation unit 342 Route setting unit 351 Guide unit 352 Vibrator 361 Rescue required Control unit 362 Radio wave transmission unit 100 LAN
D1 Light emission signal D2 Map D3 Current position mark D4 Destination mark D5 Route line D6 Guidance message D7 Pictogram D8 Mask

Claims (22)

A position providing system that provides a position to a mobile terminal having a camera and a display unit.
A map storage unit that stores maps and
A transmitter that transmits the map to the mobile terminal, and
A plurality of position-presenting light-emitting devices installed in various places and transmitting position information by a light-emitting signal according to the frame rate of the camera.
To prepare
A location providing system featuring. The transmission unit is a data transmission light emitting device that transmits the map by a light emitting signal corresponding to the frame rate of the camera.
The location providing system according to claim 1. On the mobile terminal side,
The light emitted by the camera is analyzed and the position information is extracted.
The current position mark is displayed on the map based on the extracted position information.
The location providing system according to claim 1 or 2. The position-presenting light emitting device has a light source and an opening that narrows the irradiation range of the light source.
The position providing system according to any one of claims 1 to 3. The position-presenting light-emitting device transmits the position information by means of a light-emitting signal represented by RGB ternary notation.
The position providing system according to any one of claims 1 to 4. The position presenting light emitting device transmits the position information by a light emitting signal represented by each gradation of RGB.
The position providing system according to any one of claims 1 to 5. The position presenting light emitting device transmits the position information by a light emitting signal represented by a blinking binary number.
The position providing system according to any one of claims 1 to 6. The position-presenting light-emitting device has a light source and a shutter that narrows an opening through which light from the light source passes to various shapes, and transmits the position information by a light-emitting signal represented by the shape of light.
The position providing system according to any one of claims 1 to 7. The position-presenting light emitting device has a light source, a plurality of openings formed at different positions through which light from the light source passes, and a shutter that opens and closes the openings individually, and the position information is represented by the position of the light. To transmit by the light emission signal,
The position providing system according to any one of claims 1 to 8. The position presenting light emitting device has a light source and a speaker, and transmits the position information by a combination of a light emitting signal and a sound emitting signal.
The position providing system according to any one of claims 1 to 9. Equipped with the mobile terminal
The mobile terminal
The camera that captures the light emission signal of the position presentation light emitting device, and the camera.
An analysis unit that analyzes the light emission signal captured by the camera and extracts the position information.
The display unit that displays the map in which the current position mark is placed at the position indicated by the position information extracted by the analysis unit, and the display unit.
To prepare
The position providing system according to any one of claims 1 to 10. The mobile terminal
An operation unit that accepts input of the target position and
A route setting unit that sets a route to the target position and
With
The display unit further displays the route on the map.
11. The location providing system according to claim 11. The mobile terminal includes a vibrator that vibrates when the position indicated by the position information extracted by the analysis unit is outside the path.
12. The location providing system according to claim 12. The mobile terminal
A person information storage unit that stores person characteristic information and
A guide unit that guides the route based on the person characteristic information, and
To prepare
The location providing system according to claim 12 or 13. The guide unit provides guidance in a language that matches the person's characteristic information.
14. The location providing system according to claim 14. The mobile terminal
Equipped with a personal information storage unit that stores personal characteristic information
The route setting unit sets the route based on the person characteristic information.
The location providing system according to claim 12 or 13. The map includes difficult-to-pass position information according to the person characteristic information.
The route setting unit sets the route based on the person feature information stored in the person information storage unit and the difficult-to-pass position information in the map.
16. The location providing system according to claim 16. The display unit masks routes other than the route set by the route setting unit from the map based on the person feature information stored in the person information storage unit and the difficult-to-pass position information in the map. ,
17. The location providing system according to claim 17. The route setting unit sets a route by further considering the desired arrival time, boarding time, or start time.
The position providing system according to any one of claims 16 to 18. The map storage unit stores the map on which the pictogram is arranged.
The position providing system according to any one of claims 1 to 19. In the position presenting light emitting device, all the machines transmit the same emergency signal by the light emitting signal.
The position providing system according to any one of claims 1 to 20. In the position presenting light emitting device, all the machines transmit the same emergency signal by the light emitting signal.
The mobile terminal includes a rescue-requiring control unit that transmits the position information immediately before the emergency signal by radio waves when the emergency signal is captured by the camera.
Further provided with a display device on the rescue side that displays the position information transmitted by the rescue-requiring control unit on a map.
The location providing system according to claim 16 to 19.

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