• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an apparatus and a method for correcting a position of a GPS received signal using a gyro sensor to detect and compare an instantaneous angular velocity of a gyro sensor to correct an error of the GPS received signal. The present invention compares the received signal of the GPS receiver 10 with the sensing value of the gyro sensor 20 in the microcomputer 40 and if the angle change of the GPS is greater than the angle change of the gyro sensor 20, the angle of the gyro sensor 20. If the angle change is the same, then it is displayed by using the GPS angle change.
    公开号:KR19980054941A
    申请号:KR1019960074142
    申请日:1996-12-27
    公开日:1998-09-25
    发明作者:김경호
    申请人:김영환；현대전자산업 주식회사；
    IPC主号:
    专利说明:

    Position Correction Device and Method of GPS Signal Using Gyro Sensor
    1 is a diagram showing the positioning state of the map when reception error is accompanied by general GPS.
    2 is a block diagram showing the configuration of a GPS signal receiving position correction device using a gyro sensor according to the present invention
    3 is a flow chart for performing a method for correcting the position of a GPS received signal using a gyro sensor according to the present invention.
    Explanation of symbols on the main parts of the drawings
    1 antenna 10 GPS receiver
    20: Gyro Sensor 30: Analog / Digital Converter
    40: microcomputer 50: display unit
    The present invention relates to a car navigation system (CNS), and more particularly, to detect and compare instantaneous angular velocities of a gyro sensor, using a gyro sensor to correct an error of a GPS (Global Positioning System) received signal. The present invention relates to a position correction device and a method of a GPS received signal.
    In general, signals from GPS satellites are classified into civil and military use, while military signals send accurate signals, but civil signals send signals with a maximum error of ± 100m to prevent theft for military use.
    In addition, when an error is accompanied by a signal transmitted from a GPS, as shown in FIG. 1, an instantaneous change of angle such as an accident state occurs so that an accurate position cannot be displayed on a map.
    Accordingly, the present invention has been made in view of the above, and when the angle change of the GPS signal is greater than that of the gyro sensor by comparing the angle change of the GPS signal with the angle change of the gyro sensor, the position is displayed by using the angle output from the gyro sensor. It is an object of the present invention to provide a position correction device and method for a GPS received signal using a gyro sensor to know the exact position.
    In order to achieve the above object, an apparatus and method for calibrating a GPS reception signal using a gyro sensor according to the present invention compares the received signal of a GPS receiver and a sensing value of a gyro sensor in a microcomputer to change the angle of the GPS rather than the angle of the gyro sensor. If it is large, the angle of the gyro sensor is used, and if the change of angle is the same, the display uses the change of GPS angle.
    Hereinafter, with reference to the accompanying drawings the present invention will be described in detail.
    2 is a block diagram illustrating a configuration of an error compensator for a GPS received signal using a gyro sensor according to the present invention. The GPS receiver detects an angle as a change in position data received from a GPS satellite through an antenna 1. 10, a gyro sensor 20 for detecting the instantaneous angular velocity and outputting the DC voltage value, an analog / digital converter 30 for converting the sensing signal of the gyro sensor 20 into a digital value, and the GPS receiver 10 Comparing the received signal and the output value of the analog / digital converter 30 and the microcomputer 40 for correcting the error of the GPS received signal, and the display unit 50 for displaying the position of the motion under the control of the microcomputer 40 do.
    The present invention configured as described above will be described with the flowchart of FIG.
    First, the GPS receiver 10 receives the WGS-84 coordinate data from the GPS satellite via the antenna 1 and converts the coordinates back to the UTM coordinates. S1-S3) This is input to the microcomputer 40.
    At the same time, the gyro sensor 20 detects the change in the angle according to the movement of the vehicle (S4), which is input to the microcomputer 40 through the analog / digital converter 30.
    Here, the GPS receiver 10 and the gyro sensor 20 calculate a change in angle based on a time of 1 second (S5).
    On the other hand, the microcomputer 40 compares the change of the angle of the output of the GPS receiver 10 and the output value of the gyro sensor 20 through the analog digital converter 30 to compare the change of the angle of the gyro sensor 20 with the GPS. If the angle change is large, the angle of the gyro sensor 20 is used, and if the change in angle is the same, the display unit 50 is displayed using the change in GPS angle (S6-S9).
    In this case, the use of the GPS signal when the change is the same is because the gyro sensor 20 is accurate in the instantaneous rate of change, but when accumulated, the accumulated error occurs and the GPS signal has no accumulated error.
    After the display, the terminal terminates or returns to the step S1 according to the key input (S10).
    As described above, the present invention can display an accurate position by correcting a GPS received signal error using a gyro sensor.
    权利要求:
    Claims (4)
    [1" claim-type="Currently amended] GPS receiver 10 for detecting an angle as a change in position data received from a GPS satellite through an antenna 1, a gyro sensor 20 for detecting an instantaneous angular velocity and outputting a DC voltage value, and the GPS receiver 10 Comparing the output of the output of the gyro sensor and the output of the gyroscope microcommunication signal using a gyro sensor, characterized in that it comprises a microcomputer 40 to correct the error.
    [2" claim-type="Currently amended] The method of claim 1,
    The microcomputer 40 uses the angle of the gyro sensor 20 when the angle change of the GPS is greater than the angle change of the gyro sensor 20 when displaying the position on the map, and uses the GPS angle change if the angle change is the same. GPS position correction device using a gyro sensor characterized in that.
    [3" claim-type="Currently amended] The method of claim 1,
    An analog / digital converter (30) for converting the sensing signal of the gyro sensor (20) into a digital value and inputting it to the microcomputer (40).
    [4" claim-type="Currently amended] A first step of receiving coordinate data from a GPS satellite and transforming the coordinates;
    Detecting a GPS angle change and detecting and comparing the angle change of the gyro sensor 20;
    As a result of the comparison, when the GPS angle change is greater than the change of the gyro sensor 20, the GPS using the gyro sensor is performed by selecting the angle of the gyro sensor 20 and, if the same, selecting and displaying the GPS angle. Position correcting device of received signal.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-27|Application filed by 김영환, 현대전자산업 주식회사
    1996-12-27|Priority to KR1019960074142A
    1998-09-25|Publication of KR19980054941A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960074142A|KR19980054941A|1996-12-27|1996-12-27|Position Correction Device and Method of GPS Signal Using Gyro Sensor|
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