KR101295495B1 - Distance measuring device using radio waves - Google Patents

Distance measuring device using radio waves Download PDF

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Publication number
KR101295495B1
KR101295495B1 KR1020120088819A KR20120088819A KR101295495B1 KR 101295495 B1 KR101295495 B1 KR 101295495B1 KR 1020120088819 A KR1020120088819 A KR 1020120088819A KR 20120088819 A KR20120088819 A KR 20120088819A KR 101295495 B1 KR101295495 B1 KR 101295495B1
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KR
South Korea
Prior art keywords
distance
distance measuring
objects
position
portable
Prior art date
Application number
KR1020120088819A
Other languages
Korean (ko)
Inventor
김정태
임종민
은희광
전종협
문남진
문귀원
Original Assignee
한국항공우주연구원
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Priority to KR1020120088819A priority Critical patent/KR101295495B1/en
Application granted granted Critical
Publication of KR101295495B1 publication Critical patent/KR101295495B1/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/04Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/08Systems for determining direction or position line
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205Details
    • G01S5/0236Receiving assistance data, e.g. base station almanac

Abstract

PURPOSE: A distance measurement apparatus using an electric wave is provided to simply measure a distance between two objects while conveniently measuring the distance if a third object exists. CONSTITUTION: A distance measurement apparatus using an electric wave comprises a pair of position sensors (100a,100b), and a portable distance measurement terminal (200). The pair of position sensor is respectively mounted on two objects and transmits own position information through wireless communications. The portable distance measurement terminal calculates or displays a distance between the two objects by receiving the position information from the pair of position sensors. The portable distance measurement terminal comprises an input button, a communications part, and a control part. The input part requests distance information between the two objects. The communications part transmits an electric wave of different frequency to the pair of position sensors respectively and receives the position information from the pair of position sensors if a user pushes the input button. The control part calculates the distance between the two objects based on the position information which is received from the communications part. [Reference numerals] (100a,100b) Position sensor; (200) Portable distance measurement terminal; (300) Position information providing unit

Description

Distance measuring device using radio waves {DISTANCE MEASURING DEVICE USING RADIO WAVES}

The present invention relates to a distance measuring apparatus using radio waves, and more particularly, it is possible to easily measure the distance between two objects using radio waves, and to provide a radio wave that provides convenience for measuring even if a third object exists. It relates to a distance measuring device used.

In general, a laser tracker has been used as a distance measuring device that requires dimensional control and position measurement, such as aircraft, automobiles, and robots. The structure of a laser tracker consists of a tracker for scanning a laser beam, a tracker processor for processing and displaying the data measured by the tracker, and a reflector installed in the measurement part to receive a laser oscillated from the tracker.

Such a laser tracker must first be calibrated with the laser tracker. And calibration is performed by setting a variety of distances and angles, as shown in the conventional calibration device as shown in Figure 9, a plurality of adapters 30 is mounted fixed to the vertical bar 10, the reflector is seated At the bottom, a plurality of support legs 20 are installed to allow the user to move the calibrating device to a required place and to install a reflector on each adapter 30 according to the calibration position to perform the calibration work. .

Such a conventional laser tracker has a limitation that is used only for distance measurement in one direction, and there is a problem in that a measurement cannot be performed when there is a third object between the laser tracker and the object under measurement. In addition, there is a problem that the equipment is expensive, the installation cost is excessive, and the calibration process is complicated.

Accordingly, the present invention has been made to solve the above problems of the prior art, it is possible to easily measure the distance between the two objects by using radio waves, and provide a convenience that can be measured even if a third object exists It relates to a distance measuring device using a radio wave.

To this end, a distance measuring apparatus using radio waves according to an embodiment of the present invention measures a distance between two objects by using radio waves, and is mounted on each of the two objects, and a pair for transmitting their location information through wireless communication. It is configured to be portable with a position sensor of the, characterized in that it comprises a portable distance measuring terminal for receiving the position information from the pair of position sensors to calculate and display the distance between the two objects.

In addition, the position sensor of the distance measuring apparatus using the radio wave according to the present invention has a body made of a transparent or semi-transparent plastic material to increase the transmission and reception sensitivity of the radio wave and the body has a wireless communication in a specific frequency band transmitted by the portable distance measuring terminal It is characterized in that it comprises a communication unit and an attachment portion formed on one surface of the body to be fixed to the object.

In addition, the portable distance measuring terminal of the distance measuring apparatus using the radio wave according to the present invention is a frequency different from the input button and the pair of position sensors when the user presses the input button provided to request the distance information between the two objects; A control unit for transmitting a radio wave of a band, and receiving a position information from the pair of position sensors, and calculating a distance between the two objects based on the position information received from the communication unit, and two calculated according to the command of the control unit. It characterized in that it comprises a display unit for guiding the distance between the objects visually or voice.

In addition, the input button of the distance measuring apparatus using the radio wave according to the present invention, so as to request the distance information between the first input button unit and the two objects provided to measure the distance between the portable distance measuring terminal and each object. It characterized in that it comprises a second input button unit provided.

In addition, the radio waves transmitted to the pair of position sensors in the portable ranging device of the distance measuring device using the radio wave according to the present invention is characterized in that the radio frequency (RF, Radio Frequency) of 500 ~ 600kHz and 800 ~ 900kHz band, respectively do.

In addition, the distance measuring apparatus using the radio wave according to the present invention is equipped with the position information providing means for receiving the identification signal to calculate the position information and the two objects, respectively, the position information providing means can identify the position of the own And a pair of position sensors for transmitting and receiving the identification signal and the position information, and transmitting the received position information through a wavelength of a specific frequency band, and being portable, and receiving position information from the pair of position sensors. It characterized in that it comprises a portable ranging terminal for calculating and displaying the distance between the two objects.

In addition, the position information providing means of the distance measuring apparatus using the radio wave according to the present invention is characterized in that the GPS (Global Positioning System).

In addition, the position information providing means of the distance measuring apparatus using the radio wave according to the present invention is installed within a predetermined range and a plurality of fixed terminals for receiving the identification signal from the position sensor, and analyzes the identification signal received from each of the fixed terminals Characterized in that it comprises a server for transmitting the calculated position information for each position sensor to the corresponding position sensor.

In addition, the position sensor of the distance measuring apparatus using the radio wave according to the present invention has a body made of a transparent or translucent plastic material and the body has a wireless communication with the portable distance measuring terminal and the position information providing means to increase the transmission and reception sensitivity of the radio wave A communication unit; And an attachment part formed on one surface of the body and fixed to the object.

In addition, the communication unit of the position sensor of the distance measuring apparatus using the radio wave according to the present invention is a band different from the frequency band of the first communication unit and the first communication unit for wireless communication through the radio wave of a specific frequency band received from the portable distance measuring terminal It characterized in that it comprises a second communication unit for wireless communication with the location information providing means using the radio wave of the.

According to the distance measuring apparatus using the radio wave according to the present invention, it is possible to easily measure the distance between the two objects by using the radio wave, it has the effect of providing a convenience that can be measured even if a third object exists.

1 is a block diagram showing the configuration of a distance measuring apparatus using radio waves according to an embodiment of the present invention.
2 is a perspective view showing a position sensor according to the present invention.
3 is a block diagram showing the configuration of a position sensor according to the present invention.
4 is a perspective view showing a portable distance measuring terminal according to the present invention.
5 is a block diagram showing the configuration of a portable distance measuring terminal according to the present invention.
6 is a block diagram showing the configuration of the positional information providing means according to the present invention.
Figure 7 is a schematic diagram showing the operation of the distance measuring device using the radio wave of the present invention.
8 is a diagram illustrating a signal flow of a distance measuring device using radio waves of the present invention.
9 is a view showing a laser tracker which is a conventional distance measuring device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.

1 is a block diagram showing a configuration of a distance measuring apparatus using radio waves according to an embodiment of the present invention, Figure 2 is a perspective view showing a position sensor according to the present invention, Figure 3 is a position sensor according to the present invention It is a block diagram which shows a structure.

4 is a perspective view showing a portable distance measuring terminal according to the present invention, FIG. 5 is a block diagram showing the configuration of the portable distance measuring terminal according to the present invention, and FIG. 6 is a view of the position information providing means according to the present invention. It is a block diagram showing a configuration.

Referring to FIG. 1, unlike the conventional laser tracker, the distance measuring apparatus using the radio wave measures a distance between two objects using radio waves, and includes a pair of position sensors 100a and 100b; It includes a portable distance measuring terminal 200 and location information providing means 300.

Specifically, the distance measuring apparatus using the radio wave of the present invention is mounted on each of the two objects, a pair of position sensors (100a, 100b) for transmitting their position information through wireless communication, and the pair of position sensors ( A location information providing means 300 for receiving the identification signal from the 100a and 100b and calculating the location information, and is portable, and receives the location information from the pair of position sensors 100a and 100b and between the two objects. It includes a portable ranging terminal 200 for calculating and displaying the distance.

2 and 3, the position sensors 100a and 100b according to the present invention are attached to two objects to be measured for distance, respectively, and serve to transmit position information to the portable distance measuring terminal 200. As the body 101 and the communication unit 120 installed inside the body, the control unit 110 for controlling the transmission and reception of the communication unit 120 and the attachment portion 103 fixed to one surface of the body 101. It includes.

The body 101 accommodates the communication unit 120 and the control unit 110. In the present embodiment, the body 101 is a cylindrical, transparent or translucent plastic material, but various shapes and materials Of course, it can be configured using.

The communication unit 120 transmits and receives an identification signal and location information so as to confirm its location.

Specifically, the communication unit 120 continuously transmits an identification signal capable of confirming its location, receives location information from the location information providing unit that has received the identification signal, and sends it to the portable distance measuring terminal 200. Send. At this time, the communication unit 120 transmits the location information received from the location information providing means to the portable distance measurement terminal 200 only when the portable distance measurement terminal 200 receives a signal for requesting location information.

The communication unit 120 of the position sensor (100a, 100b) of the first communication unit 121 and the first communication unit 121 for wireless communication through a radio wave of a specific frequency band received from the portable distance measuring terminal 200 It may include a second communication unit 122 for wireless communication with the location information providing means 300 by using radio waves of a band different from the frequency band.

The first communication unit 121 receives a location information request signal through a radio wave of a specific frequency band with the portable distance measuring terminal 200 and transmits its own location information.

On the other hand, the control unit 110 serves to control the overall transmission and reception of the communication unit 120.

4 and 5, the portable distance measuring terminal 200 according to the present invention may be configured to have a built-in battery so as to be portable, and receives position information from the pair of position sensors 100a and 100b. It calculates and displays the distance between two objects.

The portable distance measuring terminal 200 is provided with an input button 210 provided to request distance information between two objects, and when the user presses the input button 210, the pair of position sensors 100a and 100b are connected to each other. A distance between the two objects based on the communication unit 230 for transmitting radio waves of different frequency bands and receiving position information from the pair of position sensors 100a and 100b, and the position information received by the communication unit 230; It may include a control unit 270 for calculating the and a display unit 250 for guiding the distance between the two objects calculated in accordance with the command of the control unit 270 visually or voice.

The input button 210 is a first input button 211, 212 and a second to be provided to request the distance information between the two objects provided to measure the distance between the portable distance measuring terminal 200 and each object. It may be configured to include an input button unit 213.

In the portable distance measuring terminal 200, the distance to the position sensors 100a and 100b may be measured by pressing the first input button portions 211 and 212. That is, the distance to the object A or B can be easily measured by a simple operation of pressing the first input button parts 211 and 212. The distance calculation can be exemplified by using the propagation movement time.

In addition, the LED lamp 200 displaying the operation state of each of the first input button parts 211 and 212 and the second input button part 213 may be formed. For example, when the first input button 211 corresponding to the object A is pressed and the distance to the object A is measured, the LED lamp 221 turns on to indicate that the distance measurement is completed, and the display unit 250 displays the distance measurement. The distance value will be guided. When the second input button unit 213 is pressed in order to measure the distance to the objects A and B, a request signal is transmitted to transmit the position information for each of the objects A and B, and the pair of position sensors 100a, When receiving the respective position information from the 100b), the LED lamp 223 is turned on, and the distance value between A and B is displayed on the display 250.

When the user requests the desired distance or location information through the input button 210, the controller 270 transmits the desired distance or location information to the communication unit 230 and the display unit 250 and controls overall control.

Meanwhile, the radio waves transmitted from the communication unit 230 to the pair of position sensors 100a and 100b may be configured as radio waves (RF), respectively, and the frequency bands transmitted and received by the position sensors are different from each other. For example, radio waves in the 500-600 kHz and 800-900 kHz bands are available.

Referring to FIG. 6, the position information providing means 300 according to the present invention receives an identification signal transmitted from the position sensors 100a and 100b to calculate position information of each position sensor 100a and 100b.

The position information providing means 300 may use a satellite positioning system (GPS), and the configuration of checking the position or the position information of the position sensor by the satellite navigation apparatus corresponds to those already known to those skilled in the art. The detailed description is omitted.

In addition, the location information providing means 300 is installed within a predetermined range of a plurality of fixed terminals 320 for receiving an identification signal from the position sensors (100a, 100b) and the identification received from each of the fixed terminals (321,322,323,324) The server 310 may include a server 310 for analyzing the signal and transmitting the respective position information to the corresponding position sensors 100a and 100b.

For example, each of the plurality of fixed terminals 320 receives the identification signals of the position sensors 100a and 100b located within a predetermined range and transmits them to the server 310. In addition, the server 310 analyzes the information on the identification signals received from the fixed terminals 321, 322, 323, and 324, calculates the position information of the position sensor, and transmits the position information to the position sensors 100a and 100b.

Looking at the operation of the position adjusting device according to an embodiment of the present invention having the above-described configuration is as follows.

7 is a schematic diagram showing the operation of the distance measuring device using the radio wave of the present invention, Figure 8 is a diagram showing the signal flow of the distance measuring device using the radio wave of the present invention.

Referring to FIGS. 7 and 8, first, the position sensors 100a and 100b continuously transmit an identification signal capable of confirming their position in a short range wireless communication method. The location information providing means 300 receives the identification signal, calculates and transmits the location information of the location sensors 100a and 100b.

Next, the position information transmitted from the position information providing means 300 is received by the position sensors 100a and 100b again and transmitted to the portable distance measuring terminal 200.

The portable distance measuring terminal 200 calculates and displays the distance between A and B objects using the received location information.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Accordingly, the scope of the present invention should be construed as being limited to the embodiments described, and it is intended that the scope of the present invention encompasses not only the following claims, but also equivalents thereto.

100: position sensor 101: body
103: attachment portion 110: control unit
120: communication unit 121: first communication unit
122: second communication unit 200: portable distance measuring terminal
210: input button 211, 212: first input button
213: second input button unit 220, 221, 222, 223: lamp
230: communication unit 250: display unit
270: control unit 300: location information providing means
310: server 320,321,322,323,324: fixed terminal

Claims (10)

  1. In the distance measuring device for measuring the distance between two objects using radio waves,
    A pair of position sensors respectively mounted on the two objects and transmitting their position information through wireless communication;
    A portable distance measuring terminal configured to be portable and configured to receive position information from the pair of position sensors to calculate and display a distance between the two objects;
    Distance measuring device using a radio wave comprising a.
  2. The method of claim 1,
    The position sensor,
    A body made of a plastic material to increase transmission and reception sensitivity of radio waves;
    The body includes a communication unit for wireless communication in a specific frequency band transmitted by the portable distance measuring terminal; And
    An attachment part formed on one surface of the body and fixed to the object;
    Distance measuring device using a radio wave comprising a.
  3. The method of claim 1,
    The portable distance measuring terminal,
    An input button provided to request distance information between the two objects;
    A communication unit for transmitting radio waves of different frequency bands to the pair of position sensors when the user presses the input button, and receiving position information from the pair of position sensors;
    A controller calculating a distance between the two objects based on the position information received by the communication unit; And
    And a display unit for guiding the distance between two objects calculated in response to a command of the controller, visually or voicely.
  4. The method of claim 3,
    The input button may include a first input button unit provided to measure a distance between the portable distance measuring terminal and each object and a second input button unit provided to request distance information between two objects. Distance measuring device using radio waves.
  5. The method of claim 3,
    The radio wave transmitted from the portable distance measuring terminal to the pair of position sensors is a radio wave (RF, Radio Frequency) in the band 500 ~ 600kHz and 800 ~ 900kHz, respectively.
  6. In the distance measuring device for measuring the distance between two objects using radio waves,
    Location information providing means for receiving an identification signal and calculating location information;
    A pair mounted on each of the two objects and transmitting and receiving the identification signal and the position information, respectively, to identify the position thereof by the position information providing means, and transmitting the received position information through a wavelength of a specific frequency band. Position sensor; And
    A portable distance measuring terminal configured to be portable and configured to receive position information from the pair of position sensors to calculate and display a distance between the two objects;
    Distance measuring device using a radio wave comprising a.
  7. The method according to claim 6,
    The position information providing means is a satellite navigation device (GPS, Global Positioning System) characterized in that the radio wave using a distance measuring apparatus.
  8. The method according to claim 6,
    The location information providing means,
    A plurality of fixed terminals installed within a predetermined range and receiving an identification signal from the position sensor;
    A server for analyzing the identification signal received from each fixed terminal and transmitting the position information of each position sensor to the corresponding position sensor;
    Distance measuring device using a radio wave comprising a.
  9. The method according to claim 6,
    The position sensor,
    A body made of transparent or translucent plastic material to increase the transmission and reception sensitivity of radio waves; A communication unit accommodated in the body and performing wireless communication with the portable distance measuring terminal and the location information providing means; And an attachment part formed on one surface of the body and fixed to the object.
  10. 10. The method of claim 9,
    The communication unit of the position sensor,
    A first communication unit performing wireless communication through radio waves of a specific frequency band received from the portable distance measuring terminal; And a second communication unit wirelessly communicating with the location information providing means by using radio waves in a band different from a frequency band of the first communication unit.
KR1020120088819A 2012-08-14 2012-08-14 Distance measuring device using radio waves KR101295495B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090110839A (en) * 2006-12-27 2009-10-22 트루포지션, 인크. Portable, iterative geolocation of rf emitters
KR20110083223A (en) * 2010-01-14 2011-07-20 주식회사 엘지유플러스 Method for collecting position information for wifi positioning system information and mobile communication terminal for collecting position information
KR20120034771A (en) * 2009-09-28 2012-04-12 가부시키가이샤 히타치세이사쿠쇼 Positional information transmitter, communication terminal, and positioning system
JP2012509652A (en) 2008-11-21 2012-04-19 クアルコム,インコーポレイテッド Wireless-based positioning adjustment using motion sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090110839A (en) * 2006-12-27 2009-10-22 트루포지션, 인크. Portable, iterative geolocation of rf emitters
JP2012509652A (en) 2008-11-21 2012-04-19 クアルコム,インコーポレイテッド Wireless-based positioning adjustment using motion sensor
KR20120034771A (en) * 2009-09-28 2012-04-12 가부시키가이샤 히타치세이사쿠쇼 Positional information transmitter, communication terminal, and positioning system
KR20110083223A (en) * 2010-01-14 2011-07-20 주식회사 엘지유플러스 Method for collecting position information for wifi positioning system information and mobile communication terminal for collecting position information

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