KR20100083445A - Indoor tracking system - Google Patents

Abstract

PURPOSE: An indoor navigation system which outputs video information corresponding to the transient curve of the end points of a beam distance and produces the area value of the video information are provided to minimize errors using self compensation. CONSTITUTION: A distance measuring device(100) produces beam distance information according to the projection of the laser beam. An indoor navigation device(300) modulates indoor navigational data into data transmission signal. Indoor navigational data comprises the beam distance information of the distance measuring equipment, and the position coordinate information of the GPS satellite and acceleration information of the gyro meter. An indoor navigation server(500) demodulates data transmission signal to extract the beam distance information, and the position coordinates information and acceleration information and to produce the video information corresponding to the drift distance toward the endpoints of the beam distance information.

Description

Indoor Navigation System {INDOOR TRACKING SYSTEM}

The present invention relates to an indoor navigation system, and more particularly, to generate beam distance information by receiving an irradiated laser beam, and to track a movement trajectory of indoor navigation data derived from a gyro meter, an accelerometer, a geomagnetic meter, and a temperature sensor. The present invention relates to a technology for outputting curve information, generating trend curve information on end points of beam distance information, and calculating an area value of image information.

In general, the indoor navigation system calculates the trajectory of latitude, longitude, altitude, direction, and distance according to the movement of a person using a calculation algorithm using a device composed of a combination of a gyrometer and an accelerometer (G-meter). It calculates a dynamic trajectory value, and transmits the calculated dynamic trajectory value to a remote server through a wireless transmission device to output a continuous movement trajectory on the 2D plan of the building previously collected and produced through the output device.

However, since the error range of the location information by the GPS receiver module exceeds 5 m to 10 m, the accuracy of the coordinate information of the location according to the initial building entry of the moving trajectory is significantly reduced, and only the calculated value of the moving distance is displayed. The internal movement path of the building may be displayed crookedly, and because the coordinate information often deviates from the actual building drawing due to the error of the indoor navigation system accuracy itself, the moving distance and the current position do not exactly match the drawing. have.

The present invention has been made to solve the above problems, an object of the present invention, the movement trajectory of the indoor navigation data generated by the indoor navigation system based on the beam distance information derived through the distance measuring device as the trend curve information. In addition, the indoor navigation server outputs the image information corresponding to the trend curves of the end points of the beam distance, calculates the area value of the image information, and minimizes the moving distance and the current position error through self-correction.

The indoor navigation system according to the present invention for achieving the technical problem, the distance measuring device for generating the beam distance information according to the irradiation and receiving of the laser beam, and the beam distance information received from the distance measuring device And an indoor navigation device that generates indoor navigation data including position coordinate information received from a GPS satellite, and acceleration information collected by a gyro meter, and modulates it into a data transmission signal, and a data transmission signal received from the indoor navigation device. And demodulating the beam distance information, the position coordinate information, and the acceleration information, and generating the image information corresponding to the transition curves of the end points of the beam distance information.

The distance measuring device may include a rotatable rotating motor device, and the indoor navigation device may provide a rotation control signal for controlling the rotation angle and the rotation direction of the distance measuring device.

In addition, the rotation control signal is characterized in that for controlling the rotation angle and rotation direction of the distance measuring device according to the user's key input.

In addition, the rotation control signal, characterized in that for controlling the rotation of the distance measuring device periodically according to the preset rotation angle and rotation direction.

In addition, the distance measuring device further includes a gyro sensor, the rotation control signal includes a horizontal control signal for maintaining the vertical and horizontal based on the detection signal of the gyro meter.

In addition, the distance measuring device includes a beam emitter for irradiating a laser beam through the condenser lens unit, a beam receiver for receiving a laser beam irradiated by the beam emitter through the condenser lens unit, a brightness of the laser beam irradiated by the beam emitter, and the number of beams It includes a beam distance calculation unit for deriving the beam distance information in real time by calculating the brightness difference of the laser beam received by the madness, and a measurement distance transmission unit for receiving the beam distance information from the beam distance calculation unit to transmit to the indoor navigation device.

In addition, the measurement distance transmitter is composed of a connection cable connected to the indoor navigation system, the connection cable is an unshielded twisted pair (UTP), shielded twisted pair (STP), coaxial cable (Coaxial Cable) ), And an optical cable (Fiber Optic Cable).

In addition, the measurement distance transmitter is characterized in that the wireless connection module for transmitting the beam distance information to the indoor navigation apparatus wirelessly.

In addition, the indoor navigation system, the GPS unit for receiving position coordinate information from the GPS satellites through the GPS antenna, and derives the directional information on the movement of the person or object through the gyrometer, and through the accelerometer to the movement of the person or object To obtain the acceleration information according to the earth's magnetic field, and to derive the azimuth information according to the earth's magnetic field detection, and to obtain the accurate temperature in the indoor space through the temperature sensor. Generate indoor navigation data by sampling the inertial navigation unit that derives the error value, beam distance information, position coordinate information, directional information, acceleration information, azimuth information, and error value, and match the indoor navigation data to the wireless protocol. A control unit modulating the data transmission signal so that the indoor navigation data is modulated with a radio transmission antenna It characterized in that it comprises a wireless transmission unit for wirelessly transmitting to the navigation server.

In addition, the indoor navigation apparatus is characterized by receiving position coordinate information and time data from the GPS satellites, and correcting and updating the position coordinate information received by the GPS unit according to the 1 Hz National Marine Electronics Association (NMEA) technique.

The indoor navigation server demodulates the data transmission signal by wirelessly receiving the data transmission signal from the indoor navigation apparatus, and extracts beam distance information, position coordinate information, directional information, acceleration information, azimuth information, and error value by demodulating the data transmission signal. And generating two-dimensional and three-dimensional image information corresponding to the curves for the end points of the beam distance information based on the north pole (N pole) of the azimuth angle according to the earth magnetic field included in the azimuth information. And an area calculating control unit for calculating an area value of the information, and a display unit for outputting the 2D and 3D images and the calculated area values.

According to the present invention as described above, based on the beam distance information derived through the distance measuring device outputs the movement trajectory of the indoor navigation data generated by the indoor navigation system as the trend curve information, the end point of the beam distance by the indoor navigation server By outputting the image information corresponding to the trend curve and calculating the area value of the image information, it is possible not only to identify the moving trajectory and the moving position at a remote place but also to minimize the moving distance and the current position error through self-correction. have.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

1 is a block diagram showing the indoor navigation system (S) according to the present invention, Figure 2 is a view showing the relationship between the components of the indoor navigation system (S) according to the present invention, as shown, distance measuring apparatus 100, the rotary motor device 200, the indoor navigation device 300, the relay device 400, and the indoor navigation server 500 are configured.

Referring to FIGS. 1 and 2, the distance measuring device 100 calculates a brightness difference of an irradiated laser beam and a brightness difference between the received laser beams and a distance between the irradiated laser beam and an object. Extracts the beam distance information in real time, scans the derived beam distance information in real time, modulates the beam distance information according to the information communication (wired communication or wireless communication) protocol, and transmits the beam distance information to the indoor navigation apparatus 300. The function includes a beam emitter 110, a condenser lens unit 120, a beam receiver 130, a beam distance calculator 140, and a measurement distance transmitter 150.

In detail, the beam emitter 110 irradiates a laser beam through the condenser lens unit 120, and the beam receiver 130 receives a laser beam irradiated by the beam emitter 110 through the condenser lens unit 120. The beam distance calculator 140 derives beam distance information by calculating the brightness difference of the laser beam irradiated by the beam emitter 110 and the brightness difference of the laser beam received by the beam receiver 130, and derives the derived beam distance information. It scans in real time and transmits beam distance information to the indoor navigation apparatus 300 through the measurement distance transmitter 150.

In this case, the beam distance information is transmitted to the wire through the connection cable 151 of the measurement distance transmitter 150. In addition, the measurement distance transmitter 150 may be configured as a wireless connection module 152 to wirelessly transmit beam distance information.

In addition, the connection cable 151 is composed of any one of an unshielded twisted pair (UTP), a shielded twisted pair (STP), a coaxial cable, and an optical fiber cable. .

Although the distance measuring apparatus 100 described in the present invention is described as deriving beam distance information by the difference in brightness according to the light emission and the light reception of the laser beam irradiation, the present invention is not limited thereto. It is possible to derive the beam distance information by.

3 is a view illustrating that the rotary motor device 200 according to the present invention is provided on the helmet 10.

1 to 3, the rotary motor device 200 is provided on the helmet 10 is provided to be coupled to the distance measuring device 100 by the rotary motor shaft 210, the measuring distance transmission unit ( 150 is connected to the rotary slip ring contact portion 220 and the rotary slip ring 230, the rotary slip ring 230 is applied to the rotational force from the motor 240 to the distance measuring device 100 0 ° to 360 ° By rotating at an angle of the distance measuring apparatus 100 to derive even beam distance information of 0 ° to 360 °.

In addition, the gyro sensor 250 includes a horizontal control signal for maintaining the vertical and horizontal based on the detection signal detected in accordance with the control of the rotation control signal received from the indoor navigation device 300. That is, the rotation angle and the rotation direction of the distance measuring device 100 are corrected according to the control of the horizontal control signal to maintain the vertical and horizontal. At this time, the rotation control signal controls the rotation angle and rotation direction of the distance measuring device 100 according to a user's key input, or periodically rotates the distance measurement device 100 according to the preset rotation angle and rotation direction. .

In addition, the rotation of the distance measuring device 100 is rotated at an angle of 0 ° to 360 ° according to the rotation control signal, so that the distance measuring device 100 derives beam distance information of 0 ° to 360 °. .

In addition, in the present invention, the rotary motor device 200 is described as being provided above the helmet 10, but is not limited thereto, and may be provided at any one of a human body, a vehicle, or a transport robot.

1 and 2, the indoor navigation apparatus 300 receives beam distance information from the distance measuring apparatus 100 and corrects an error by receiving position coordinate information from a global positioning system (GPS) satellite 20. And indoor navigation data by generating the beam distance information, the position coordinate information, and the information collected by the gyro meter 321, the accelerometer 322, the geomagnetic field meter 323 and the temperature sensor 324 as indoor navigation data. Is transmitted to the relay device 400 or the indoor navigation server 500, GPS unit 310, inertial navigation unit 320, NMEA (National Marine Electronics Association) unit 330, control unit 340, memory unit 350, a wireless transmission unit 360, an output unit 370, and a power supply unit 380.

Specifically, the GPS unit 310 receives position coordinate information from the GPS satellite 20 through the GPS antenna 311.

The inertial navigation unit 320 detects the movement of a person or an object through the gyro meter 321 to derive the directional information, and detects the movement of the person or the object through the accelerometer 322 to derive the acceleration information, and the geomagnetic field Derivation of the azimuth information according to the magnetic field detection of the earth through the meter 323, and accurate temperature in the indoor space through the temperature sensor 324 to derive the high error value caused by the expansion of air pressure in the space with heat Derived information is collected from the directional information, the acceleration information, the azimuth information according to the detection of the magnetic field of the earth, and the error values according to the misleading change.

The NMEA (National Marine Electronics Association) 330 receives position coordinate information and time data from the GPS satellite 20, and transmits the position coordinate information received by the GPS unit 310 according to the 1 Hz NMEA (National Marine Electronics Association) technique. Correct and update.

The control unit 340 is connected to the connection cable 150 of the distance measuring device 100 to receive beam distance information, the position coordinate information from the GPS unit 310, the beam distance information, the position coordinate information , And generate indoor navigation data by sampling direction information, acceleration information, azimuth information, and error value according to the movement of a person or an object from the inertial navigation unit 320 and converting the generated indoor navigation data into a wireless protocol. Modulate the data transmission signal to match.

In addition, the control unit 340 is connected to the rotary slip ring contact portion 220 through the connection cable 150 to control the rotation of the motor 240 of the rotary motor device 200 to rotate at an angle of 0 ° to 360 ° Generate a signal.

The memory unit 350 stores and manages indoor navigation data, and the wireless transmission unit 360 transmits the modulated data transmission signal to the relay device 400 or the indoor navigation server 500 through the wireless transmission antenna 361. The output unit 370 outputs transition curve information on the indoor navigation data (beam distance information, position coordinate information, directional information, acceleration information, azimuth information, and error value).

The power unit 380 includes the above-described components GPS unit 310, inertial navigation unit 320, NMEA unit 330, control unit 140, memory unit 350, wireless transmission unit 360 and output unit ( The power is supplied to 370, but a backup battery 381 is provided to prevent loss of information and data of the components 310 to 370 due to sudden power failure.

The relay device 400 transmits the data transmission signal received from the indoor navigation device 300 through the wireless reception antenna 410 to the indoor navigation server 500 through the transmission cable 420. At this time, the data transmission signal transmission between the indoor navigation device 300 and the indoor navigation server 500 is performed by the information communication network.

Here, although the data transmission signal transmission between the indoor navigation apparatus 300 and the relay apparatus 400 is wireless, the data transmission signal transmission between the relay apparatus 400 and the indoor navigation server 500 is described as being performed by wire. It is apparent that the present invention is not limited thereto, and the design may be changed without being divided into wired and wireless transmissions.

FIG. 4 is a view showing two-dimensional and three-dimensional images of the movement trajectory of the distance measuring device 100 and the transition curves of the end points of the beam distance information based on the north pole (N pole) of the azimuth angle according to the detection of the magnetic field of the earth. 5 is a diagram illustrating the calculation of the area of the trend curves according to the triangular area calculation method shown in Equations 1 and 2.

1, 2, 4 and 5, the indoor navigation server 500 demodulates the data transmission signal transmitted from the indoor navigation apparatus 300 or the relay 400, beam distance information, and position coordinates. Extracting the information and generating two-dimensional and three-dimensional image information corresponding to the transition curves of the end points of the beam distance information, the data receiving unit 510, the decoding unit 520, the area calculating controller 530, The indoor navigation DB 540, and comprises a display unit 550.

The data receiver 510 receives a data transmission signal from the indoor navigation apparatus 300 or the repeater 400, and the data demodulator 520 demodulates the data transmission signal applied from the data receiver 510 to beam distance information. , Location coordinate information, directional information, acceleration information, azimuth information and error value are extracted.

The area calculation controller 530 receives the demodulated beam distance information, the position coordinate information, the directional information, the acceleration information, the azimuth information, and the error value from the data demodulator 520, and the azimuth angle according to the earth magnetic field included in the azimuth information. 2D and 3D image information corresponding to the transition curves of the end points of the beam distance information are generated based on the north pole (N pole) of, and the area of the trend curves is calculated according to the triangular area calculation method.

In this case, the area values of the 2D and 3D image information are calculated by triangular area calculation, wherein the area value of the image information is calculated by Equation 1 below, and the total triangular area calculation, that is, the distance. The area (hereinafter, 'total area') of the trend curves according to the beam distance information of the entire 0 ° to 360 ° angle of the measuring device 100 is calculated by Equation 2 below.

[Equation 1]

[Equation 2]

In addition, overlapping of the total area calculated by matching each of the total areas calculated by the total triangular area calculation of Equation 2 may be excluded.

The indoor navigation DB 540 receives indoor navigation data received from the relay device 400, beam distance information, position coordinate information, directional information, acceleration information, azimuth information, and error value demodulated by the data demodulator 520. The area calculation controller 530 stores the trend curves and the calculated areas of the end points of the beam distance information.

The display unit 550 may include indoor navigation data received from the relay device 400, beam distance information demodulated by the data demodulator 520, position coordinate information, directional information, acceleration information, azimuth information, and error value. The 2D and 3D images generated by the area calculation controller 530 and the calculated area values are output.

As described above and described with reference to a preferred embodiment for illustrating the technical idea of the present invention, the present invention is not limited to the configuration and operation as shown and described as described above, it is a deviation from the scope of the technical idea It will be understood by those skilled in the art that many modifications and variations can be made to the invention without departing from the scope of the invention. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is a block diagram showing an indoor navigation system (S) according to the present invention.

2 is a view showing the detailed configuration of the indoor navigation system (S) according to the present invention and the relationship between the components.

3 is a view illustrating that the rotary motor device 200 of the indoor navigation system S according to the present invention is provided on the helmet 10.

4 is a movement curve of the distance measuring device 100 for the indoor navigation system S according to the present invention, and a curve for the endpoints of beam distances based on the north pole (N pole) of the azimuth angle according to the magnetic field detection of the earth. And a 2D image corresponding to the output.

5 is a view showing the calculation of the area of the two-dimensional and three-dimensional image according to the triangular area calculation method shown in [Equation 1] and [Equation 2] of the indoor navigation system (S) according to the present invention.

** Description of symbols for the main parts of the drawing **

S: indoor navigation system 10: helmet

20: GPS satellite 100: distance measuring device

110: beam emitter 120: condensing lens part

130: beam receiver 140: beam distance calculator

150: measuring distance transmitter 151: connecting cable

152: wireless connection module 200: rotary motor device

210: rotary motor shaft 220: rotary slip ring

230: rotary slip ring contact portion 240: motor

250: gyro sensor 300: indoor navigation system

310: GPS unit 311: GPS antenna

320: inertial navigation unit 321: gyro meter

322: accelerometer 323: geomagnetic meter

324: temperature sensor 330: NMEA section

340: control unit 350: memory unit

360: wireless transmission unit 361: wireless transmission antenna

370: output unit 380: power supply

381: backup battery 400: relay

410: wireless receiving antenna 420: transmission cable

500: indoor navigation server 510: data receiving unit

520: Data demodulation unit 530: Area calculation control unit

540: indoor navigation DB 550: display

Claims (11)

In indoor navigation systems, A distance measuring device for generating beam distance information according to irradiation and light reception of a laser beam; An indoor navigation device that generates indoor navigation data including beam distance information received from the distance measurement device, position coordinate information received from a GPS satellite, and acceleration information collected by a gyro meter, and modulates the data into a data transmission signal; And The data transmission signal received from the indoor navigation apparatus is demodulated to extract beam distance information, position coordinate information, and acceleration information, and generate image information corresponding to trend curves for the end points of the beam distance information. An indoor navigation server; Indoor navigation system comprising a. The method of claim 1, The distance measuring device includes a rotatable rotating motor device, wherein the indoor navigation device provides a rotation control signal for controlling the rotation angle and the rotation direction of the distance measuring device. The method of claim 2, The rotation control signal is, Indoor navigation system, characterized in that for controlling the rotation angle and the rotation direction of the distance measuring device according to the user's key input. The method of claim 2, The rotation control signal is, Indoor navigation system, characterized in that for controlling the rotation of the distance measuring device periodically according to a preset rotation angle and rotation direction. The method of claim 2, The distance measuring device further comprises a gyro sensor, wherein the rotation control signal is a indoor navigation system, characterized in that it comprises a horizontal control signal for maintaining the vertical and horizontal based on the detection signal of the gyro sensor. The method of claim 1, The distance measuring device, A beam emitter for irradiating the laser beam through a condenser lens unit; A beam receiver for receiving a laser beam irradiated by the beam emitter through the condenser lens unit; A beam distance calculator configured to derive beam distance information in real time by calculating a brightness difference of the laser beam irradiated by the beam emitter and a brightness of the laser beam received by the beam receiver; And A measurement distance transmitter receiving beam distance information from the beam distance calculator and transmitting the beam distance information to the indoor navigation apparatus; Indoor navigation apparatus comprising a. The method of claim 6, The measurement distance transmission unit, The connection cable is connected to the indoor navigation system, and the connection cable includes an unshielded twisted pair (UTP), a shielded twisted pair (STP), a coaxial cable, and an optical cable. Indoor navigation system, characterized in that composed of any one of. The method of claim 6, The measurement distance transmission unit, Indoor navigation system characterized in that the wireless connection module for transmitting the beam distance information to the indoor navigation apparatus wirelessly. The method of claim 1, The indoor navigation device, A GPS unit for receiving position coordinate information from the GPS satellite through a GPS antenna; Deriving the directional information on the movement of the person or object through the gyro, Deriving the acceleration information according to the movement of the person or object through the accelerometer, Deriving the azimuth information according to the magnetic field of the earth through the geomagnetic field meter Inertial navigation unit for deriving the exact temperature in the indoor space through the temperature sensor to derive the high error value caused by the expansion of the air pressure in the space with heat; A control unit for generating indoor navigation data by sampling the beam distance information, position coordinate information, directional information, acceleration information, azimuth information, and error value, and modulating the indoor navigation data into a data transmission signal to conform to a wireless protocol. ; And A wireless transmission unit for wirelessly transmitting the modulated data transmission signal to the indoor navigation server through a radio transmission antenna; Indoor navigation system comprising a. The method according to claim 1 or 9, The indoor navigation device, Receiving position coordinate information and time data from the GPS satellites, the indoor navigation system, characterized in that for correcting and updating the position coordinate information received by the GPS unit according to the 1Hz National Marine Electronics Association (NMEA) technique. The method of claim 1, The indoor navigation server, A data receiver wirelessly receiving the data transmission signal from the indoor navigation apparatus; A data demodulator for demodulating the data transmission signal to extract the beam distance information, position coordinate information, directional information, acceleration information, azimuth information, and an error value; Based on the north pole (N pole) of the azimuth angle according to the earth magnetic field included in the azimuth information, generating two-dimensional and three-dimensional image information corresponding to the curves for the end points of the beam distance information, and the area of the image information An area calculation control unit for calculating a value; And A display unit to output the 2D and 3D images and calculated area values; Indoor navigation system comprising a.

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