KR101855088B1 - Method and apparatus for removing gps shadow area using beacon - Google Patents

Abstract

The present invention relates to a method and system for solving a shadow area of a GPS using a beacon. The method includes providing a plurality of beacon GPS signalers and a beacon GPS gateway for providing GPS coordinates in a shaded area in which GPS signals can not be received from GPS satellites, And to provide accurate location information to a user.

Description

Technical Field [0001] The present invention relates to a method and system for canceling a shadow area of a GPS using a beacon,

[0001] The present invention relates to a method and system for resolving a GPS shaded area using a beacon, and more particularly, to a beacon GPS receiver and a beacon GPS gateway for providing GPS coordinates in a shaded area, And to provide a method and system for allowing the user or the user terminal to continuously track the position of the user or the user terminal or to provide accurate position information to the user or the user terminal.

In recent years, due to the rapid development of information and communication technology, a location positioning technique that provides a user with various information (navigation information, vehicle trajectory, vehicle driving information, for example) Be in the spotlight.

A representative example of such a positioning technique is a vehicle driving information system that tracks the position of the vehicle and provides the user with driving information of the vehicle.

The vehicle driving information system receives vehicle driving record data including positional information of a vehicle from a DTG (digital tachograph) terminal of a vehicle in real time via a mobile communication network, analyzes the received vehicle driving record data, Provides statistical information and vehicle trajectory.

Generally, the DTG terminal of the vehicle management information system tracks the position of the vehicle using a global positioning system (GPS). The GPS is a representative technique of position location technology, which tracks the location of a user based on signals received from a plurality of navigation satellites to provide accurate location information. In order to calculate accurate location information and provide it to the user, it is most important to receive the GPS signal in real time.

However, in a typical environment for vehicle operation, there are GPS shaded areas (such as tunnels or underground parking lots) where GPS signals can not be received.

When the vehicle enters the GPS shaded area, the DTG terminal can not obtain normal GPS coordinates and transmits vehicle driving record data including abnormal GPS coordinates to the vehicle driving information system. In this case, the vehicle driving information system can not provide the user with the original position of the vehicle in the shadow area of the GPS to the user. Therefore, the information statistics on the vehicle operation calculated based on the vehicle driving record data in the vehicle driving information system have a limitation only to be applied to the road except for the GPS translating area.

To solve these problems, a GPS based dead reckoning (DR) system has recently been developed and commercialized.

The DR system is a technology that is used to grasp the current location of the vehicle more accurately by assisting the GPS in an environment such as underground space or building forest where the GPS signal is completely cut off in conjunction with the existing GPS.

The DR system uses a three-axis gyro sensor that measures the angular velocity of a vehicle called an inertial sensor in a shaded area of the GPS, an acceleration sensor that measures the linear acceleration of the vehicle, a geomagnetic sensor, Estimates the current vehicle position by estimating the moving distance of the vehicle in cooperation with the vehicle speed sensor of the vehicle, and provides the user with the position information of the current vehicle.

However, since the DR system has a separate DR unit including a plurality of sensors, it is inconvenient to install the DR unit on the vehicle body and a separate cost is required. In order to grasp the position of the vehicle by interlocking a plurality of sensors, The accuracy of the position information due to accumulation can be drastically reduced. In addition, if one of the plurality of sensors is defective due to deterioration or other internal / external factors, accurate position information of the corresponding vehicle can not be provided.

Accordingly, the present invention provides a method and system for providing accurate location information on a vehicle in the shadow area by installing and operating a plurality of beacon GPS transceivers that provide GPS coordinates in a shadow area of the GPS in the shadow area of the GPS .

Next, a brief description will be given of the prior arts that exist in the technical field of the present invention, and technical matters which the present invention intends to differentiate from the prior arts will be described.

Korean Patent Registration No. 1229958 (Feb. 23, 2013) discloses a pedestrian position information system and a method for acquiring position information in a GPS inaccessible area, and includes a plurality of sensors for acquiring position information of a pedestrian including an inertial sensor The present invention relates to a system and a method for estimating position information based on a posture of a pedestrian, a direction angle, a height, a gait and a stride, displaying the estimated position information on a map, and providing the position information to a user.

The prior art is somewhat similar to the present invention in that the location of the user is tracked in a shaded area of the GPS where the GPS signal is not received and the location information of the current user is provided to the user's terminal, There is a limit in continuously providing information and when there is a defect in at least one sensor among a plurality of sensors for acquiring position information, there is a problem that the accuracy of the position information of the user drops sharply.

On the other hand, the present invention can flexibly adjust the intensity of beacon signals transmitted from a plurality of beacon GPS transceivers and a plurality of beacon GPS transceivers arranged in a specific form in a shadow area of a GPS, The information can be continuously provided to the user.

Korean Patent Laid-Open Publication No. 2015-0029820 (Mar. 19, 2015) discloses an apparatus and method for estimating a GPS-based vehicle position using a location-based service (LBS) And more particularly, to a device and a method for estimating a position of a vehicle using sensing data for collecting vehicle information when the vehicle enters a shade area.

Although the prior art has some similarities with the present invention in that it provides location information of a vehicle located within a shaded area of a GPS, in the process of analyzing sensing data collected from a plurality of sensors to estimate the position of the vehicle, Since the noise of the vehicle is analyzed as well, the accumulated error may become large, and thus there is a disadvantage in that accurate position information of the vehicle can not be provided.

On the other hand, the present invention is not limited to estimating the position of the vehicle in the shadow area of the GPS, but may also be based on the fact that accurate position information on the current position of the vehicle is obtained from the GPS shaded area through a plurality of beacon GPS transceivers, Since accurate position information is provided to the user, a complicated calculation process is unnecessary, and it is not necessary to provide a separate sensor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a beacon GPS transceiver which stores GPS coordinates of a location installed in a shaded area of a GPS, And it is an object of the present invention to provide a method and system for continuously providing location information of a running vehicle to a user.

In addition, one embodiment of the present invention provides accurate location information of the current vehicle based on the GPS coordinates of the current location transmitted from a plurality of beacon GPS transceivers installed in a shadow area of the GPS, such as a tunnel, an underground or underground parking lot And to provide a method and a system for enabling a computer system to be provided.

In addition, one embodiment of the present invention provides a method and system for providing information on a current location of a vehicle to a user by installing and operating a plurality of beacon GPS transceivers installed in a specific area of a GPS shaded area .

Also, an embodiment of the present invention can detect a change in state of a plurality of beacon GPS transceivers installed in a shadow area of a GPS to control the intensity of a beacon signal, thereby causing a defect in the at least one beacon GPS transceiver And to provide a method and system for rapidly eliminating a GPS-shaded area and continuously providing vehicle location information to a user.

Also, an embodiment of the present invention provides a method and system for providing accurate position information of a vehicle to a user without complicated calculation by installing and operating a plurality of beacon GPS transceivers directly providing GPS coordinates of a shadow area of the GPS .

The GPS shaded area canceling method using a beacon according to an embodiment of the present invention includes transmitting a beacon signal including GPS coordinates through a beacon GPS signal and transmitting a beacon signal including GPS coordinates through a beacon GPS gateway And monitoring the beacon GPS signal by controlling the intensity of the beacon GPS signal transmitted through the beacon GPS gateway, thereby resolving the shadow area with respect to the GPS coordinates.

The GPS shaded area resolution method may further include controlling intensity of a transmission signal of the beacon GPS signaler and the beacon GPS gateway according to a monitoring result received from the beacon GPS gateway through a management server do.

The monitoring step may further include the step of periodically receiving the management message from at least one of the beacon GPS signalers and checking the state of the beacon GPS signaler.

The beacon GPS gateway may be configured to monitor at least one of the beacon GPS signalers, if the state of the at least one beacon GPS signaler is changed, And transmitting the control command to change the strength of the transmission signal to the control unit.

Also, signal intensities of the beacon GPS signal and the beacon GPS gateway are controlled so that no shadow region occurs depending on the installation position of at least one beacon GPS signal and at least one beacon GPS gateway.

Also, the beacon GPS gateway transmits the result of monitoring the state of the beacon GPS signal to the management server through a separate wire / wireless network, or transmits the result to the management server through the DTG terminal.

Also, the beacon signal strength of the beacon GPS gateway and the beacon GPS signal is controlled in consideration of installation position, signal strength, or state change of the at least one beacon GPS gateway and the beacon GPS signal.

In addition, the GPS shaded area elimination system using the beacon according to an embodiment of the present invention includes transmitting a beacon signal including a GPS beacon and a GPS beacon transmitting a beacon signal including GPS coordinates, And a beacon GPS gateway for controlling a strength of a transmission signal of the beacon GPS signal through the beacon GPS gateway, thereby resolving the shadow region for the GPS coordinates.

The GPS shaded area resolution system may further include a management server for controlling intensity of a signal transmitted from the beacon GPS signaler and the beacon GPS gateway according to a monitoring result received from the beacon GPS gateway.

Also, the beacon GPS gateway periodically receives a management message from at least one of the beacon GPS signalers, and monitors the state of the beacon GPS signalers, thereby monitoring a state change of the beacon GPS signalers.

When the beacon GPS gateway determines that the status of at least one of the beacon GPS signalers has been changed as a result of checking the status, the beacon GPS gateway transmits the beacon signal to the beacon GPS gateway itself or through at least one of the beacon GPS signalers And transmits the control command so as to change the strength of the transmission signal with respect to the transmission signal.

Also, signal intensities of the beacon GPS signal and the beacon GPS gateway are controlled so that no shadow region occurs depending on the installation position of at least one beacon GPS signal and at least one beacon GPS gateway.

Also, the beacon GPS gateway transmits the result of monitoring the state of the beacon GPS signal to the management server through a separate wire / wireless network, or transmits the result to the management server through the DTG terminal.

The management server also controls beacon signal strengths of the beacon GPS gateway and the beacon GPS signal in consideration of installation position, signal strength, or state change of the at least one beacon GPS gateway and the beacon GPS signal. do.

The present invention relates to a method and system for solving a shadow area of a GPS using a beacon, and by installing and operating a plurality of beacon GPS transceivers to which GPS coordinates are input in a shaded area where GPS signals are not received, The vehicle can be accurately tracked, or the user can be provided with accurate positional information of the vehicle.

Also, by monitoring a plurality of beacon GPS transceivers installed in a shadow area of a GPS, it is possible to detect the occurrence of defects in real time, thereby quickly recovering a temporary occurrence of some GPS shaded areas, There is an effect that can be provided to the user.

Also, by arranging a plurality of beacon GPS transceivers in a specific form within the shadow area of the GPS, it is possible to provide the accurate position information of the vehicle to the user terminal even in the shadow area of the GPS.

FIG. 1 is a conceptual diagram for schematically explaining a GPS shaded area resolution method and system using a beacon according to an embodiment of the present invention.
2 is a block diagram illustrating a configuration of a beacon GPS gateway according to an embodiment of the present invention.
3 is a block diagram illustrating a configuration of a beacon GPS signal according to an embodiment of the present invention.
FIG. 4 is a diagram for explaining a method of installing a beacon GPS transceiver for a sufficient reception ratio of a beacon signal (GPS coordinate) to a maximum speed of a vehicle in a one-way two-lane road according to an embodiment of the present invention.
5 is a view for explaining a method of installing a beacon GPS transceiver for a sufficient reception ratio of a beacon signal (GPS coordinate) to a maximum speed of a vehicle in a one-way lane road according to an embodiment of the present invention.
FIG. 6A is a diagram illustrating a shadow area of a GPS generated due to a defect of a specific beacon GPS signal among a plurality of beacon GPS signals installed in a GPS shaded area of a one-way lane according to an embodiment of the present invention.
6 (b) is a diagram for explaining a method for solving a GPS shadow region due to a defect of a specific beacon GPS signal within a GPS shadow region of a one-way lane according to an embodiment of the present invention.
FIG. 7A is a diagram showing a shadow area of a GPS generated due to a defect of a specific beacon GPS signal among a plurality of beacon GPS signals installed in a GPS shaded area of a one-way lane according to an embodiment of the present invention.
7B is a diagram for explaining a method for solving a GPS shadow region due to a defect of a specific beacon GPS signal within a GPS shadow region of a one way lane according to an embodiment of the present invention.
FIG. 8 is a view showing a transmission range of a management message transmitted from a plurality of beacon GPS transceivers installed in a GPS shaded area of a one-way lane according to an embodiment of the present invention.
9 is a view showing a transmission range of a management message transmitted from a plurality of beacon GPS transceivers installed in a GPS shaded area of a one-way lane according to an embodiment of the present invention.
10 is a flowchart illustrating a procedure for controlling a beacon signal strength of a beacon GPS transceiver by detecting a change in state of a specific beacon GPS transceiver among a plurality of beacon GPS transceivers installed in a shadow area of a GPS according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

FIG. 1 is a conceptual diagram for schematically explaining a GPS shaded area resolution method and system using a beacon according to an embodiment of the present invention.

1, a GPS shaded area elimination system 10 using a beacon monitors a plurality of beacon GPS transceivers 100 generating and transmitting a beacon signal and the plurality of beacon GPS transceivers 100, And a management server 400 for controlling the intensity of a beacon signal transmitted from each beacon GPS transceiver 100.

The plurality of beacon GPS transceivers 100 are installed in a specific shape (e.g., a mesh shape) in a GPS shaded area where GPS signals can not be received, such as a tunnel in which a vehicle is operated or an underground parking lot.

On the other hand, when the beacon GPS transceiver 100 is installed in a tunnel or an underground parking lot, the beacon GPS transceiver 100 is installed on a ceiling of a corresponding tunnel or an underground parking lot according to a route through which the vehicle travels. However, It can also be installed on road guidlines or other structures.

Also, the beacon GPS transceivers 100 have respective coverage (transmission range of a beacon signal) and are installed at a certain distance.

For example, when the beacon GPS transceiver 100 is installed in a tunnel, a beacon signal receiver (e.g., a DTG terminal) provided in a vehicle traveling at high speed transmits a beacon signal transmitted from the beacon GPS transceiver 100 It can be installed in a mesh form so that it can be received without skipping, or it can be installed in a straight line or a curve according to the lane shape for each lane.

Also, each of the beacon GPS transceivers 100 stores GPS coordinates of installed positions, and transmits the stored GPS coordinates as a beacon signal. At this time, the vehicle traveling in the shadow area of the GPS receives the signals transmitted from the respective beacon GPS transceivers 100 and acquires the GPS coordinates at the corresponding location, thereby obtaining accurate position information of the current vehicle. This is because the beacon GPS transceiver 100, in contrast to the conventional technique of estimating the position of a vehicle based on sensing data collected through a separate sensor and providing positional information to a user, So that a complicated calculation process for estimating the position of the vehicle is not necessary.

Accordingly, it is possible to provide the user or the user terminal with accurate positional information on the vehicle in the shadow area of the GPS.

Accordingly, the user terminal can provide reliable services (e.g., vehicle driving information service, navigation service) and information (statistics on vehicle driving information, vehicle driving trajectory) to the user based on the received accurate position information.

Meanwhile, when the vehicle receives a plurality of GPS coordinates from a plurality of beacon GPS transceivers 100 through its own DTG terminal, the vehicle calculates a Received Signal Strength Indicator (RSSI) value for a plurality of currently received beacon signals The GPS coordinates of the largest beacon signal is used as position information of the corresponding vehicle.

The GPS coordinates of the beacon signal having the largest RSSI value indicate the GPS coordinates stored in the beacon GPS transceiver 100 closest to the vehicle, and therefore, it is an index indicating the accurate position information of the corresponding vehicle. On the other hand, RSSI is an index indicating the strength of a received signal, and the unit is dBm. The larger the value of dBm is, the stronger the received signal is. Since the RSSI is inversely proportional to the square of the distance, the signal intensity becomes weaker as the distance increases.

The beacon GPS transceiver 100 transmits a beacon signal including the GPS coordinates with a predetermined intensity and a predetermined period, and the intensity and the period of the beacon are transmitted to the beacon GPS transceiver 100 according to the scale of the GPS shaded area in which the beacon GPS transceiver 100 is installed, The maximum traveling speed or the distance between each beacon GPS transceiver 100 and the like.

Also, the plurality of beacon GPS transceivers 100 may include a beacon GPS signal transmitter 300 for transmitting a beacon signal including GPS coordinates and at least one beacon GPS receiver 300 for transmitting a beacon signal including the GPS coordinates, And a beacon GPS gateway 200 for monitoring the signal transmitter 300.

Also, the beacon GPS signal transmitter 300 transmits the beacon signal with a period and intensity of a predetermined beacon signal at a location where the beacon signal is installed.

Also, the beacon signal transmitted from the beacon GPS signal transmitter 300 is composed of two types, one is a beacon signal including GPS coordinates, and the other is a beacon signal transmitter for notifying the beacon GPS gateway 200 of its operation state and a management message.

In addition, the two types of beacon signals may be transmitted with different transmission ranges (i.e., signal strengths) and transmission periods for efficient use (e.g., power consumption) of the beacon GPS signal 300. That is, since the beacon signal composed of the GPS coordinates is set according to the scale in the shadow area of the GPS, the vehicle speed, and the installation distance between the beacon GPS transceivers 100 in order to provide the user with accurate position information of the vehicle, Since the beacon signal composed of the management message is for informing the beacon GPS gateway 200 of the operation state of the beacon GPS signal 300, the transmission range and the transmission period are set to beacon signals including the GPS coordinates Can be set to be relatively longer than the transmission range and the transmission period.

The beacon GPS gateway 200 periodically receives the management message and transmits the beacon signal to the corresponding beacon signal generator 300. The control message includes a unique ID of the beacon GPS signal 300, By checking the state of the GPS signal 300, it detects a change in the state of the beacon GPS signal 300.

On the other hand, the state change means a change in a state in which the beacon GPS signal 300 is defective or the defective beacon GPS signal 300 is recovered from defects in a normal operation state.

Also, the beacon GPS gateway 200 checks the state of the beacon GPS signal 300 according to whether a management message is received or not, and detects a change in the state of the beacon GPS signal 300 based on the status of the beacon GPS signal.

The beacon GPS gateway 200 receives a management message from a plurality of beacon GPS signals 300 and generates a beacon signal for a plurality of beacon GPS signals 300 located within its management range based on the unique ID included in the management message Monitor state changes. That is, if the beacon GPS gateway 200 fails to receive the management message from the specific beacon GPS signal 300 every predetermined transmission period, the beacon GPS gateway 200 considers that a fault has occurred in the specific beacon GPS signal 300. Also, if the management message is periodically re-received from the defective beacon GPS signal 300, it is regarded as recovered from the defect.

Accordingly, the beacon GPS gateway 200 generates a notification message about the monitored result, periodically transmits the notification message to the management server 400 through the wired / wireless network, and transmits the notification message to all the beacon GPS transceivers 100 And to monitor the operation status.

On the other hand, the GPS shaded area resolution system 10 using the beacon may transmit the monitored result to the management server 400 through interworking with the existing vehicle operation information system. That is, the beacon GPS gateway 200 transmits the monitored result to the DTG terminal of the vehicle, and the DTG terminal, which receives the monitored result, transmits the DTG terminal to the vehicle driving information system and is transmitted to the management server 400 .

In addition, the notification message about the monitored result is periodically transmitted to the management server 400 to monitor the beacon GPS gateway 200 and the operation states of the plurality of beacon GPS signalers 300, and a specific beacon GPS signal transmitter 300), it is immediately generated and transmitted. This is to allow the management server 400 to recognize the change of the state of the beacon GPS signal 300 and to quickly maintain the beacon GPS signal 300.

For example, when the management server 400 recognizes a defect of the specific beacon GPS signal 300 through the notification message, the management server 400 may detect at least one beacon GPS signal 300 ) Or a control command for amplifying the signal strength of the beacon GPS gateway 200 to at least one or more beacon GPS gateways 200 so as to transmit the control command through the beacon GPS gateway 200, It is possible to amplify the beacon signal strength of the beacon GPS signal 300 and the beacon GPS gateway 200 adjacent to the specific beacon GPS signal 300 in which the defect occurs so that the transmission distance of the beacon signal can be extended, Allows you to quickly resolve possible GPS shadow areas.

When the management server 400 recognizes that the specific beacon GPS signal 300 has been recovered from the defect through the notification message, the management server 400 may update the beacon signal amplified by the corresponding beacon GPS gateway 200, So that the intensity of the beacon signal of the beacon GPS gateway 200 or the beacon GPS signal 300 amplifying the intensity of the beacon signal can be restored to its original level.

When the control server 400 recognizes a fault in the specific beacon GPS gateway 200 through the notification message periodically received, the management server 400 transmits the control command to the beacon GPS gateway 200 adjacent to the beacon GPS gateway 200, The signal strength of the beacon GPS signal 300 adjacent to the specific beacon GPS gateway 200 in which the defect occurs can be extended so that the GPS beacon signal can be transmitted to the beacon GPS gateway 200, Make it possible to solve the area quickly.

 As described above, the management server 400 may include an installation location, a signal strength, or a location of the beacon GPS gateway 200 or the beacon GPS signal 300 for the at least one beacon GPS gateway 200 and the beacon GPS signal 300, The beacon signal strength of the beacon GPS gateway 200 and the beacon GPS signal 300 is controlled so that some GPS shadow regions do not occur in the shadow region of the GPS in consideration of the state change of the beacon GPS gateway 200 and the beacon GPS signal 300.

2 is a block diagram illustrating a configuration of a beacon GPS gateway according to an embodiment of the present invention.

2, the beacon GPS gateway 200 includes a beacon signal transmitting and receiving unit 210 for transmitting or receiving a beacon signal, a beacon signal receiving unit 210 for detecting a state change of the beacon GPS signal 300 through the received beacon signal, A control unit 230 for controlling overall operation of the beacon GPS gateway 200, a notification unit 240 for generating a notification message about a change in the state of the beacon GPS signal 300, A beacon signal intensity controller 260 for controlling the intensity of the beacon signal according to the received control command, a communication unit 260 for communicating with the management server 400, A memory unit 270, a memory 280, and a power supply unit 290.

The beacon signal transmitting and receiving unit 210 includes a management message transmitting and receiving unit 211 for receiving a management message from a plurality of beacon GPS signals 300 or transmitting a control command and a GPS coordinate transmitting unit 212 for transmitting GPS coordinates .

The beacon signal transmitting and receiving unit 210 receives a management message at predetermined intervals from a plurality of beacon GPS signals 300 located within a certain coverage of the beacon GPS gateway 200 and transmits at least one beacon GPS signal 300, To the specific beacon GPS signal (300).

The management message includes a unique ID of the corresponding beacon GPS signal 300.

Also, the status change detection unit 220 detects the status of the beacon GPS signal 300 located in the coverage of the beacon GPS gateway 200 based on the unique ID of the beacon GPS signal 300 included in the received management messages. Monitors the state of the beacon GPS signalers 300 and detects a change in the state of the beacon GPS signalers 300 through the monitoring.

Also, the detection of the state change may be performed by comparing the unique ID of each beacon GPS signal 300 included in the management message with the unique ID of the beacon GPS signal 300 stored in the memory 280, 300, < / RTI >

That is, the state change sensing unit 220 detects a change in the state of the beacon GPS signal 300 according to whether the management message is received or not, and when a management message is not periodically received from the specific beacon GPS signal 300 And if the management message is periodically received again from the beacon GPS signal generator 300 in which the defect is generated, it is regarded that the defect is recovered from the defect.

The notification unit 240 periodically generates a notification message on the monitored result of the status change detection unit 200 and transmits the generated notification message to the management server 400 via the communication unit 270, When a change in the state of a specific beacon GPS signal 300 is detected through the sensing unit 220, the notification message is immediately generated and transmitted to the management server 400.

Meanwhile, the management server 400 includes a map including a plurality of beacon GPS signals 300 installed in a shadow area of a GPS and a plurality of beacon GPS gateways 200 including installation locations, coverage ranges, GPS coordinates, map). In addition, when the management server 400 recognizes a change in the state of the beacon GPS signal 300 or the beacon GPS gateway 200 through the notification message, the management server 400 transmits at least one beacon GPS To the at least one beacon GPS gateway 200, a control command for controlling the intensity of the beacon signal output from the gateway 200 or the beacon GPS signal 300. At this time, the control command includes at least one beacon GPS signal 300 for controlling the beacon signal or a unique ID of the beacon GPS gateway 200.

Also, the command receiving unit 250 receives a control command received from the management server 400, and the management message transmitting and receiving unit 211 transmits the received control command. At this time, the plurality of beacon GPS signalers 300 receive the transmitted control command, and when the received control command includes its own unique ID, control the intensity of the beacon signal according to the control command If the transmission distance of the beacon signal is extended (that is, when a defect occurs in a specific beacon GPS signal) or the intensity of the amplified beacon signal is restored to the original intensity (i.e., Case).

If the received control command includes the unique ID of the corresponding beacon GPS gateway 200, the controller 230 controls the beacon signal strength controller 250 so that the beacon of the beacon GPS gateway 200 The signal strength is amplified to extend the transmission range of the beacon signal or restore the original beacon signal strength.

Meanwhile, when the beacon GPS gateway 200 recognizes the state change, the beacon signal generator 300 within the coverage of the beacon GPS receiver 300 The beacon signal generator 300 may transmit a control command to the corresponding beacon GPS signal generator 300 so as to change the strength of the beacon signal itself.

In addition, the GPS coordinate transmitting unit 212 transmits pre-stored GPS coordinates according to the intensity of the beacon signal or the intensity of the beacon signal changed according to the control command, and the vehicle has an RSSI value for a plurality of received beacon signals The GPS coordinates of the highest beacon signal are selected and provided to the user.

Also, the memory 280 stores a unique ID of a plurality of beacon GPS signals 300 located within the coverage of the beacon GPS gateway 200, an output intensity of the beacon signal, a transmission period of the beacon signal, GPS coordinates of the beacon GPS gateway 200, or a combination thereof.

Also, the power supply unit 290 is constituted by a constant power source device, and is connected to an external power source in the shadow area of the GPS to supply power to the beacon GPS gateway 200. On the other hand, when the external power source is not installed in the shadow area of the GPS (for example, when the beacon GPS gateway is installed in a guideline of a road passing through a lush forest), a battery is installed to supply power to the beacon GPS gateway 200 It is natural to be able to.

Also, the controller 230 performs overall control such as driving or data flow between the respective components of the beacon GPS gateway 200.

Meanwhile, since transmission of control commands performed by the management message transmitting / receiving unit 311 and transmission of GPS coordinates performed by the GPS coordinate transmitting unit 312 can be performed with different transmission ranges, the beacon signal strength adjustment The controller 340 may control the strength of the beacon signal according to each transmission range to transmit the control command or transmit the GPS coordinates.

3 is a block diagram illustrating a configuration of a beacon GPS signal according to an embodiment of the present invention.

3, the beacon GPS signal 300 includes a beacon signal transmission / reception unit 310 for transmitting or receiving a beacon signal, a command detection unit 320 for detecting a control command from the received beacon signal, A controller 350 for overall operation of the GPS signal 300, a beacon signal intensity controller 340 for controlling the intensity of the beacon signal according to the received control command, a memory 350 and a power supply 360 .

The beacon signal transmitting and receiving unit 310 includes a management message transmitting and receiving unit 311 for transmitting a management message or a control command, and a GPS coordinate transmitting unit 312 for transmitting GPS coordinates.

The management message transmission / reception unit 311 transmits a management message including the unique ID of the beacon GPS signal 300 to the beacon GPS gateway 200.

The management message is transmitted with the transmission period and the output intensity of the beacon signal so that the specific beacon GPS gateway 200 can monitor the operation state of the corresponding beacon GPS signal 300.

Also, the command detector 320 checks whether the unique ID of the beacon GPS signal 300 is included in the control command received through the management message transmission / reception unit 311, ) Is included in the control command.

On the other hand, the control command amplifies the intensity of the beacon signal of the corresponding beacon GPS signal 300 to eliminate the generated GPS shadow area when some GPS shaded area occurs due to a defect of the specific beacon GPS signal 300, Is received from the beacon GPS gateway 200 for restoring the intensity of the amplified beacon signal of the corresponding beacon GPS signal 300 due to recovery of a specific beacon GPS signal 300 having a defect.

Also, the beacon signal strength adjuster 340 amplifies the strength of the beacon signal currently output according to the detected control command, or adjusts the strength of the amplified beacon signal so as to return to a predetermined strength.

The GPS coordinate transmitter 312 transmits GPS coordinates according to the intensity of the beacon signal adjusted by the beacon signal strength adjuster 340, and the transmitted GPS coordinates are transmitted to the GPS receiver 300, DTG terminal.

3, the transmission of the management message and the transmission of the GPS coordinates may be performed by setting different beacon signal intensities. Therefore, the beacon signal strength adjuster 340 may adjust the beacon signal strength of each transmission range The control message can be transmitted or the GPS coordinates can be transmitted by adjusting the intensity of the beacon signal according to the intensity of the beacon signal.

Also, the power supply unit 360 is always powered up and connected to an external power source in the shadow area of the GPS to supply power to the beacon GPS signal 300. On the other hand, when the external power source is not installed in the shadow area of the GPS (for example, in the case of a forested road), it is natural that a battery may be installed to supply power to the beacon GPS signal 300.

Hereinafter, a method for installing the beacon GPS signal 300 and the beacon GPS gateway 200 to provide optimal effects will be described as an example of a highway tunnel.

FIG. 4 is a diagram for explaining a method of installing a beacon GPS transceiver for a sufficient reception ratio of a beacon signal (GPS coordinates) to a maximum speed of a vehicle in a one-way two-lane road according to an embodiment of the present invention, FIG. 3 is a diagram for explaining a method of installing a beacon GPS transceiver for a sufficient reception rate of a beacon signal (GPS coordinate) relative to a maximum speed of a vehicle in a one-way lane road according to an embodiment of the present invention.

4, the plurality of beacon GPS transceivers 100 are mounted on the ceiling of the tunnel in order to provide GPS coordinates to the vehicle traveling in each lane, in a one way two lane road passing through a tunnel that is a shadow area of the GPS, It can be installed in mesh form.

In addition, when installing and operating the plurality of beacon GPS transceivers 100, it is possible to generate a small number of optimum effects by referring to the traveling speed of the vehicle, the size of the tunnel, the transmission range of the beacon signal, and the like.

Generally, vehicles traveling at 100km / h, the highest speed of the highway, travel at an average of 27.8m / sec.

Accordingly, the ratio of the travel distance per second is calculated, and the period of transmitting the beacon signal including the GPS coordinates in the beacon GPS transceiver 100 is set to 0.5 second, and the installation distance between the plurality of beacon GPS transceivers 100 is set to 20m And the transmission distance of each beacon GPS transceiver 100 is set to 10 m or more, the distance from the beacon GPS transceiver 100 to the DTG terminal of the vehicle traveling at a speed of 100 km / All GPS coordinates can be received in order, without skipping the beacon signal.

Accordingly, if the width of the road lane is 4 m in the one-way lane, the beacon GPS transceiver 100 is installed as shown in FIG. 4, so that the optimal GPS coordinates, which is the RSSI maximum signal strength, is selected as the GPS coordinates of the vehicle Method.

As shown in FIG. 5, a plurality of beacon GPS transceivers 100 are installed in the form of a one-lane road in the ceiling of the tunnel to provide GPS coordinates to a vehicle traveling in a one-lane road passing through a tunnel that is a shadow area of GPS It can be installed in a straight line or a curved line.

According to the method of installing the beacon GPS transceiver 100 described with reference to FIG. 4, a beacon signal transmitted from a plurality of beacon GPS transceivers 100 installed on the one-lane road in a vehicle traveling at a speed of 100 km / h, In order to receive the GPS coordinates in order without skipping, it is possible to set the transmission period of the beacon signal to 0.5 second, the installation distance between the beacon GPS transceiver 100 to 20 m, and the transmission distance to 15 m or more.

As described above with reference to FIG. 4 and FIG. 5, if a plurality of beacon GPS transceivers 100 are installed with reference to the maximum travel speed of each tunnel, . In addition, the beacon GPS transceiver 100 can be installed in a minimum number, and at the same time, the vehicle can obtain an optimum effect of obtaining accurate GPS coordinates of the vehicle from the beacon GPS transceiver 100, The cost of installing the beacon GPS transceiver 100 can also be minimized.

Hereinafter, referring to FIG. 6 and FIG. 7, there is shown a process of eliminating defects when a plurality of beacon GPS signalers 300 and a beacon GPS gateway 200 are installed in a shaded area of a GPS.

FIG. 6A is a diagram showing a shadow area of a GPS generated due to a defect of a specific beacon GPS signal among a plurality of beacon GPS signals installed in a GPS shaded area of a one-way lane according to an embodiment of the present invention, (b) is a diagram for explaining a method for solving a GPS shadow region due to a defect of a specific beacon GPS signal within a GPS shadow region of a one-way lane according to an embodiment of the present invention.

6A and 6B, AA, AB, AD, and AE represent the beacon GPS signal 300 installed in the shadow area of the GPS, AC represents the beacon GPS signal 300, And a beacon GPS gateway 200 for monitoring the operation state of the beacon GPS 300.

Also, each of the beacon GPS signalers 300 transmits GPS coordinates and management messages at regular intervals.

The beacon GPS gateway 200 AC periodically receives a management message from each of the beacon GPS signalers 300 to monitor an operation state of the plurality of beacon GPS signalers 300, The beacon signal generator 300 regards the beacon GPS signal 300 as having a defect.

That is, as shown in FIG. 6A, the beacon GPS gateway 200 AC periodically receives management messages from the beacon GPS signalers AA, AB, AD, and AE. Also, if the control message is not periodically received from the beacon GPS signal 300 AD, it is assumed that a defect has occurred in the beacon GPS signal 300 AD.

On the other hand, since the plurality of beacon GPS signalers 300 have a certain transmission range, which is a coverage thereof, some GPS shadow areas may occur when a defect occurs in a specific beacon GPS signaler 300.

Therefore, the beacon GPS gateway 200 AC that detects the defect of the beacon GPS signal 300 AD transmits the notification message of the occurrence of the defect to the management server 400 so that it can recognize the defect, The beacon GPS signal 300 can be restored and the occurrence of some GPS shadow areas due to defects can be quickly resolved.

Also, when the management server 400 recognizes the occurrence of a defect in the beacon GPS signal 300 AD through the notification message, the management server 400 transmits a beacon GPS signal to the beacon GPS signal 300 AD, And transmits a control command for amplifying the signal strength of the beacon GPS gateway 200 AC to the beacon GPS gateway 200 AC.

When receiving the control command from the management server 400, the beacon GPS gateway 200 transmits the beacon GPS signal 300 (AE) to receive the control command, and the beacon GPS gateway 200 AC And the beacon GPS signal 300 AE amplify the intensity of the beacon signal output according to the received control command and extend the transmission range of the beacon signal so that some of the GPS satellites generated due to the defect of the beacon GPS signal 300 AD It is possible to prevent the degradation of the area and the decrease of the reception ratio with respect to the GPS coordinates of the vehicle.

For example, if the beacon GPS signal 300 AD is defective at a one-way two-lane road in a tunnel with a maximum speed of 100 km / h installed at a distance of 20 m between each beacon GPS transceiver 100 and a transmission distance of 10 m The controller 400 amplifies the intensity of the beacon signal output from the beacon GPS gateway 200 AC and the beacon GPS signal AE through the control of the management server 400, It is possible to quickly resolve the generated GPS shaded area.

The beacon GPS gateway 200 amplifies the beacon signal intensity of the corresponding beacon GPS gateway 200 when it detects a defect of the AD and transmits a control command to amplify the beacon signal strength of the beacon GPS gateway 200, May be generated and transmitted by itself.

Hereinafter, a description will be given of a method for solving the case where some GPS shaded area is generated due to a defect of the beacon signal transceiver 300 installed in the one-way one-lane line, for example, in the shaded area of the GPS.

7A is a diagram showing a shadow area of a GPS generated due to a defect of a specific beacon GPS signal among a plurality of beacon GPS signals installed in a GPS shaded area of a one way lane according to an embodiment of the present invention, (B) is a diagram for explaining a method of eliminating a GPS shaded area due to a defect of a specific beacon GPS signal within a GPS shaded area of a one way lane according to an embodiment of the present invention.

7A and 7B, in the one-lane road in the tunnel, the beacon GPS gateway 200 and the plurality of beacon GPS signalers 300 are spaced a certain distance from the ceiling of the tunnel And can be installed in a straight line or a curved line along the path of the primary lane.

AB and AC denote the beacon GPS signal 300, and AA and AD denote the beacon GPS gateway 200, respectively.

The beacon GPS gateway 200 AA monitors the beacon GPS signal 300 and the beacon GPS gateway 200 AD monitors the beacon GPS signal 300 AD.

Each of the beacon GPS gateways AA and AD periodically receives management messages from the beacon GPS signalers 300 and AC to monitor the operation states of the beacon GPS signalers 300 and AC, And if it fails to periodically receive the management message from the specific beacon GPS signal 300, the beacon GPS signal 300 is regarded as having a defect.

That is, as shown in FIG. 6A, the beacon GPS gateway 200 AA periodically receives the management message from the beacon GPS signal 300 AB. Also, the beacon GPS gateway 200 AA considers that a beacon is generated in the beacon GPS signal 300 AB when the control message is not periodically received from the beacon GPS signal 300 AB.

Since the beacon GPS signal 300 and the beacon GPS signal 300 and the beacon GPS gateways 200 and AA have a constant transmission range for transmitting a beacon signal, when a defect occurs in the beacon GPS signal 300, In a vehicle located within the transmission distance of the beacon GPS signal 300 AB (i.e., within a range not overlapping with other beacon GPS signalers or beacon GPS gateways), some GPS shadow regions can not receive GPS coordinates.

Accordingly, the beacon GPS gateway 300 AA that detects the defect of the beacon GPS signal 300 AB generates and transmits a notification message of the occurrence of the defect to the management server 400.

When the management server 400 recognizes the occurrence of a defect in the beacon GPS signal 300 AB through the notification message, the management server 400 transmits a beacon GPS signal to the beacon GPS signal generator 300, A beacon GPS gateway 200 AA and a beacon GPS gateway 200 AD to increase the signal strength of the beacon 300 AC. Meanwhile, the control command is transmitted to the beacon GPS gateway 200 AD in addition to the beacon GPS gateway 200 AA that transmitted the notification message. The beacon GPS signal 300 AC is transmitted to the beacon GPS gateway 200 through the coverage range of the beacon GPS gateway 200 AA And belongs to the coverage range of the beacon GPS gateway 200 AD (this will be described in detail with reference to FIG. 8)

Also, when receiving the control command from the management server 400, the beacon GPS gateway 200 AD transmits the control command so that the beacon GPS signal 300 AB can receive the control command.

The beacon GPS gateway 200 AA and the beacon GPS signal 300 AC amplify the intensity of the beacon signal output according to the received control command and extend the transmission range of the beacon signal, It is possible to prevent the resolution of some GPS shaded areas caused by the AB defect and the decrease of the reception ratio to the GPS coordinates of the vehicle.

Meanwhile, the beacon GPS gateway 200 AA recognizing a defect of the beacon GPS signal 300 AB receives the control command from the management server 400 and amplifies the beacon signal strength of itself, or amplifies the beacon signal strength itself can do.

For example, as shown in FIG. 5, the distance between the beacon GPS transceivers 100 is set to 20 meters, and the transmission distance is set to 15 meters. The beacon GPS gateway 200 and the beacon GPS signal generator 300 adjacent to the beacon GPS signal generator 300 and the beacon GPS signal generator 300 generate a beacon signal intensity And by extending the transmission distance of the beacon signal to 30 m, it is possible to quickly resolve the generated GPS shaded area.

A method of solving a part of the GPS shadow area generated due to a defect of the beacon GPS signal 300 in one-way lane and one-way lane is described in detail with reference to FIGS. 6A to 7B It goes without saying that the GPS shaded area due to the defect can be solved through the same method even in the lane more than that.

Hereinafter, a method for the beacon GPS gateway 200 to monitor a plurality of beacon GPS signalers 300 will be described in detail with reference to FIGS. 8 and 9. FIG.

 FIG. 8 is a diagram illustrating a transmission range of a management message transmitted from a plurality of beacon GPS transceivers 100 installed in a GPS shaded area of a one-way lane according to an embodiment of the present invention. FIG. FIG. 4 is a diagram showing a transmission range of a management message transmitted from a plurality of beacon GPS transceivers 100 installed in a GPS shaded area of a one way lane according to an example.

As shown in FIGS. 8 and 9, the GPS shaded area elimination system 10 using the beacon of the present invention includes a plurality of beacon GPS transceivers 100 installed in a tunnel, which is a shaded area on the road, The present invention aims at providing accurate position information of a vehicle by transmitting GPS coordinates to a vehicle in which the vehicle is located and receiving all GPS coordinates in the direction in which the vehicle is traveling.

Therefore, the transmission range of the beacon signal for transmitting the GPS coordinates is set according to the traveling speed of the vehicle, the scale of the road, the transmission period of the beacon signal, the installation distance between the beacon GPS transceivers 100, or a combination thereof.

On the other hand, the transmission range of the management message for monitoring the operation state of the beacon GPS signalers 300 located within a certain range may vary depending on the location where the beacon GPS transceivers 100 are installed.

That is, the transmission range for transmitting the management message of each beacon GPS signal 300 to the beacon GPS gateway 200 should include the location where the beacon GPS gateway 200 is installed, The transmission range of the control command transmitted from the GPS gateway 200 must include all of the respective beacon GPS signal 300.

For example, when the installation distance between the beacon GPS transceivers 100 installed in the tunnel is 20 m, the control messages transmitted from the beacon GPS signalers 300 and the beacon GPS gateway 200, respectively, The transmission distance should be set to 20m or more.

Therefore, the transmission range for transmitting the GPS coordinates and the transmission range for transmitting the management message or control command may be set differently. At this time, the beacon GPS transceiver 100 can transmit the beacon signals with different intensities of the GPS coordinates and the management messages.

Meanwhile, the transmission range of the management message and the transmission range of the GPS coordinates may be the same, and the management message and the GPS coordinates may be transmitted simultaneously or at different times. When the transmission range of the management message is the same as the transmission range of the GPS coordinates, even if a fault occurs in the specific beacon GPS signal 300 or the specific beacon GPS gateway 200, The vehicle is capable of receiving GPS coordinates from an adjacent beacon GPS transceiver 100 and can continuously provide the current position information of the vehicle to the user (i.e., due to the relatively wide transmission range of the GPS coordinates) Coverage of the nearest multiple beacon GPS transceivers can be covered even if a particular beacon GPS transceiver fails).

10 is a flowchart illustrating a procedure for controlling the intensity of a beacon signal of a beacon GPS transceiver by detecting a change in state of a specific beacon GPS signal among a plurality of beacon GPS transceivers installed in a shaded area of a GPS according to an embodiment of the present invention.

10, the procedure for controlling the intensity of the beacon signal of the beacon GPS transceiver 100 by detecting a change in the state of the specific beacon GPS signal 300 installed in the GPS transliteration region is first performed by the beacon GPS gateway 200 Receives a management message periodically from a plurality of beacon GPS signalers 300 located within the monitoring range of the beacon GPS gateway 200 (i.e., the management message transmission range) through the management message transmission / reception unit 210 of the beacon GPS gateway 200 S110).

The management message transmitted from the beacon GPS signal 300 is a message used by the beacon GPS gateway 200 to monitor a change in the state of the beacon GPS signal 300.

Meanwhile, the management message transmitted from the beacon GPS gateway 200 means a control command for amplifying or reducing the intensity of the beacon signal output from the specific beacon GPS signal transmitter 300.

Next, the beacon GPS gateway 200 detects a state change of the beacon GPS signal 300 based on the plurality of management messages received through the state change detection unit 220 (S120).

The detection is performed by comparing the unique ID of the beacon GPS signal 300 located within a predetermined range monitored by the beacon GPS gateway 200 and the unique ID of the beacon GPS signal 300 included in the received management message .

Next, when the beacon GPS gateway 200 detects a change in the state of the specific beacon GPS signal 300 as a result of the detection (S130), the beacon GPS gateway 200 generates a notification message about the state change through the notification unit 240, (S140).

In this case, the notification message may be transmitted through a wire / wireless network or may be transmitted to the management server 400 through the DTG terminal of the vehicle.

The beacon GPS gateway 200 periodically transmits the notification message to the beacon GPS gateway 200 so that the operation state of the beacon GPS gateway 200 can be monitored by the management server 400. However, Even when a state change is detected, it can be generated and transmitted immediately. At this time, the transmitted notification message includes the unique ID of the corresponding beacon GPS signal 300.

Next, the control command transmitted from the management server 400 is received through the command receiving unit 250 (S150).

The control command may amplify the beacon signal strength of the beacon GPS signal 300 or the beacon GPS gateway 200 adjacent to the beacon GPS signal 300 so as to extend the transmission range of the beacon signal, When the beacon GPS signal 300 generated is amplified, the beacon signal generator 300 amplifies the intensity of the beacon signal according to the previous control command or the beacon signal of the beacon GPS gateway 200 is restored to its original state, GPS signal 300 or the unique ID of the beacon GPS gateway 200.

Next, the beacon GPS gateway 200 controls the intensity of the beacon signal of the beacon GPS gateway 200 according to the received control command through the signal strength controller 260, or controls the beacon signal strength of the beacon GPS gateway 200 through the management message transmitter / receiver 210 And transmits the received control command to control the intensity of the beacon signal in the specific beacon GPS signal 300 (S160).

When the beacon GPS gateway 200 receives the control command from the management server 400 and the unique ID included in the control command includes its own unique ID, the beacon GPS gateway 200 outputs Amplifies the intensity of the beacon signal, transmits the control command, and transmits the received control command without amplifying the intensity of the beacon signal if it does not include its own unique ID.

As described above, the method and system for canceling the shadow area of the GPS using the beacon of the present invention is for eliminating the shadow area of the GPS existing in the facility where the vehicle is operated, such as in the road or underground parking lot. The vehicle can continuously receive normal GPS coordinates through a beacon GPS transceiver including a plurality of beacon GPS signals and a beacon GPS gateway, thereby providing accurate position information of the vehicle to the user.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, 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 present invention.

10: GPS shaded area resolution system 100: Beacon GPS transceiver
200: Beacon GPS gateway 210, 310: Beacon signal transmitting /
211, 311: management message transmission / reception unit 212, 312: GPS coordinate transmission unit
220: state change sensing unit 230, 330:
240: notification unit 250: command reception unit
260, 340: Beacon signal intensity adjuster 270:
280, 350: memory 300: beacon GPS signal
320: command detection unit 400: management server

Claims (14)

Transmitting a beacon signal including GPS coordinates via a beacon GPS signal; And
Monitoring the beacon GPS signal including transmitting a beacon signal including GPS coordinates through a beacon GPS gateway,
Wherein the beacon GPS gateway controls a strength of a transmission signal of the beacon GPS signal by sending a control command, thereby resolving the shaded area with respect to the GPS coordinates. The method according to claim 1,
The GPS shaded area resolution method includes:
And controlling intensity of a transmission signal of the beacon GPS signal and the beacon GPS gateway according to a monitoring result received from the beacon GPS gateway through a management server. The method according to claim 1,
Wherein the monitoring comprises:
Further comprising the step of: the beacon GPS gateway periodically receiving a management message from at least one or more of the beacon GPS signalers to check the status of the beacon GPS signalers. The method of claim 3,
Wherein the monitoring comprises:
When it is determined that the state of at least one of the beacon GPS signalers has changed,
Wherein the beacon GPS gateway transmits a control command to change a strength of a transmission signal for at least one beacon GPS signaler by itself or under control of a management server. Way. The method according to claim 1,
Wherein the signal strength of the beacon GPS signal and the signal strength of the beacon GPS gateway is controlled so that no shadow region occurs depending on the installation position of at least one of the beacon GPS signalers and at least one of the beacon GPS gateways. The method according to claim 1,
Wherein the beacon GPS gateway transmits a result of monitoring the status of the beacon GPS signal to a management server through a separate wire / wireless network or transmits the result to a management server through a DTG terminal. The method of claim 2,
The management server includes:
Wherein the control unit controls the beacon signal strength of the beacon GPS gateway and the beacon GPS signal in consideration of installation position, signal strength, or state change of at least one of the beacon GPS gateway and the beacon GPS signal. Resolution method. A beacon GPS signal transmitting a beacon signal including GPS coordinates; And
And a beacon GPS gateway for monitoring the beacon GPS signal including transmitting a beacon signal including GPS coordinates,
Wherein the beacon GPS gateway controls a strength of a transmission signal of the beacon GPS signal by sending a control command, thereby resolving the shaded area with respect to the GPS coordinates. The method of claim 8,
The GPS shaded area resolution system includes:
And a control server for controlling the intensity of the beacon GPS signal and the transmission signal of the beacon GPS gateway according to a monitoring result received from the beacon GPS gateway. The method of claim 8,
The beacon GPS gateway includes:
Wherein the system monitors the state of the beacon GPS signalers by periodically receiving a management message from at least one or more of the beacon GPS signalers to check the state of the beacon GPS signalers. The method of claim 10,
The beacon GPS gateway includes:
When it is determined that the state of at least one of the beacon GPS signalers has changed,
And transmits a control command to the beacon GPS gateway to change the intensity of a transmission signal for at least one or more of the beacon GPS signalers by itself or under control of a management server. The method of claim 8,
Wherein the signal intensity of the beacon GPS signal and the signal strength of the beacon GPS gateway are controlled so that no shadow region occurs according to at least one of the beacon GPS signalers and at least one of the beacon GPS gateways. The method of claim 8,
Wherein the beacon GPS gateway transmits a result of monitoring the state of the beacon GPS signal to a management server via a separate wire / wireless network or transmits the result to a management server through a DTG terminal. The method of claim 9,
The management server includes:
Wherein the control unit controls the beacon signal strength of the beacon GPS gateway and the beacon GPS signal in consideration of installation position, signal strength, or state change of at least one of the beacon GPS gateway and the beacon GPS signal. Resolution system.

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