JP6159106B2 - On-vehicle equipment and analysis equipment - Google Patents

Description

  The present invention relates to an on-vehicle device that records a trajectory of a moving body and an analysis device that analyzes information recorded by the on-vehicle device.

  Conventionally, an on-vehicle device records GPS position information as additional information of a digital tachograph or a drive recorder, and a PC displays a travel location or video location on a map based on the recorded data recorded by the on-vehicle device. It has been broken.

  As a prior art of this type, when a mobile object enters a tunnel and cannot receive a GPS signal, the position of the mobile object is specified with reference to the position at the time of reception, and the coordinate point is displayed on a map. It is known (see Patent Document 1).

Japanese Patent Laid-Open No. 10-103980

  However, the conventional analyzer has the following problems. That is, when the vehicle enters a tunnel or a valley of a building and travels in an environment where GPS signals cannot be received, the vehicle position information is recorded at the position where the GPS signals were last received. That is, when the vehicle is not equipped with other means for identifying the position of the vehicle, such as a gyro sensor, the speed chart and the photographed image are updated while the vehicle is running, but the position of the vehicle is not the tunnel entrance on the map. And so on.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to record on a vehicle-mounted device that can easily record the position coordinates of a moving object in a period during which position information cannot be acquired, and the vehicle-mounted device. Another object of the present invention is to provide an analysis device for analyzing the position coordinates of a moving body.

In order to achieve the above-described object, the vehicle-mounted device according to the present invention is characterized by the following (1) to (4).
(1) An in-vehicle device that records a trajectory of a moving object,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
Equipped with a,
The interpolation unit adds the supplemented position coordinates when the time required for the moving body to move between the first position coordinates and the second position coordinates is less than a threshold;
about.
(2) An in-vehicle device that records the trajectory of the moving body,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
With
The interpolation unit adds the position coordinates to be compensated when a distance between the first position coordinates and the second position coordinates is less than a threshold;
about.
(3) An in-vehicle device that records a trajectory of movement of the moving body,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
With
The interpolation unit moves between the first position coordinate and the second position coordinate, and when the speed of the moving body is within a predetermined range, adds the supplemented position coordinate.
about.
(4) An in-vehicle device that records a trajectory of movement of the moving body,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
With
The interpolation unit adds the position coordinates to be compensated when the deviation of the azimuth between the first position coordinates and the second position coordinates does not exceed a predetermined value;
about.

In order to achieve the above-described object, an analysis apparatus according to the present invention is characterized by the following (5) and (6).
(5) An analysis device that analyzes a trajectory recorded by the vehicle-mounted device having any one of the constitutions (1) to (4) and moved by the moving body,
A display unit;
An acquisition unit for acquiring position information of the moving body recorded by the on-vehicle device;
A map information holding unit for holding map information;
A controller that displays the map information on the display unit, and controls the map information to display the position information acquired from the acquisition unit as the position coordinates of the moving body;
Be provided.
(6) An analysis device for analyzing a trajectory of movement of the mobile body, recorded by an on-vehicle device that records the trajectory of movement of the mobile body,
A display unit;
An acquisition unit for acquiring the position information of the moving object recorded by the vehicle-mounted device;
A map information holding unit for holding map information;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
The map information is displayed on the display unit, and the position information acquired from the acquisition unit and the position information added by the interpolation unit are displayed on the map information as the position coordinates of the moving body. A control unit;
With
When the time required for the moving body to move between the first position coordinate and the second position coordinate is less than a threshold value, the interpolation unit is configured to output the first position coordinate and the second position coordinate. When the distance between the position coordinates is less than a threshold value, when moving between the first position coordinates and the second position coordinates, the speed of the moving body is within a predetermined range, and the first When the deviation of the azimuth between the position coordinates of 1 and the second position coordinates does not exceed a predetermined value, in at least one of the cases, the position coordinates to be compensated are added.
about.

  According to the vehicle-mounted device having the configuration of (1) to (4) above, the first position coordinate acquired last before the period in which acquisition is not possible and the second position coordinate acquired first after the period in which acquisition is not possible are connected. On the straight line, position coordinates to be compensated as a locus of movement of the moving body are added.

  According to the analysis apparatus configured as described in (5) and (6) above, the first position coordinate acquired last before the period in which acquisition is not possible and the second position coordinate acquired first after the period in which acquisition is not possible are connected. On the straight line, position coordinates to be compensated as a trajectory of the moving body are displayed.

  The vehicle-mounted device according to the present invention is a trajectory in which the moving body moves on a straight line connecting the first position coordinate acquired last before the period in which acquisition is not possible and the second position coordinate acquired first after the period in which acquisition is not possible. Add the position coordinates to be filled in as Thereby, the position coordinate of the moving body in a period during which position information cannot be acquired can be easily recorded. Moreover, since the analysis apparatus of the present invention controls to display the trajectory on which the moving body has moved on the straight line, the trajectory on which the moving body has moved in a period during which position information cannot be acquired can be easily displayed. .

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is a block diagram illustrating a configuration of the vehicle-mounted device 1 according to the embodiment. FIG. 2 is a flowchart showing a procedure for recording a travel locus. FIG. 3 is a flowchart showing a procedure for recording a travel locus following FIG. FIG. 4A to FIG. 4C are diagrams illustrating an operation of adding position coordinates to be compensated as a travel locus in a non-positioning section. FIG. 5 is a diagram showing a map image 42 displayed on the display of the analysis apparatus. FIG. 6 is a graph showing the upper limit value Tmax of the non-positioning measurement time corresponding to the vehicle speed.

  An in-vehicle device and an analysis device according to an embodiment of the present invention will be described with reference to the drawings. Onboard equipment, such as a digital tachograph and a car navigation device, can be applied to the onboard equipment of this embodiment. Further, a general-purpose PC can be applied to the analysis apparatus of the present embodiment.

  FIG. 1 is a block diagram showing a configuration of the vehicle-mounted device 1 in the embodiment. The vehicle-mounted device 1 is mounted on a vehicle 5 (see FIGS. 4A to 4C), and includes a CPU 11, a GPS module 12, an LCD 13, a sound IC 14, a speed I / F 15, an engine I / F 16, and a power I / F 17. RAMs 18 and 19, a data processing unit 20, and a card I / F 21.

  The CPU 11 (control unit) incorporates a ROM 11a, a RAM 11b, a timer 11c, and the like, and controls the entire vehicle-mounted device 1. The GPS module 12 (acquisition unit) receives a signal (GPS data) from a GPS satellite, and acquires latitude / longitude and azimuth data as current position information. The LCD 13 (display unit) is a liquid crystal display. The audio IC 14 generates various audio data.

  The speed interface (I / F) 15 receives a speed pulse from the vehicle speed sensor and outputs a speed signal to the CPU 11. The engine I / F 16 receives an engine pulse from the engine speed sensor and outputs the engine speed to the CPU 11. The power I / F 17 is connected to the battery via an ignition switch (IGN) and notifies the CPU 11 that the power is on.

  The RAM 18 stores a time series file in which latitude / longitude and direction data obtained from the GPS module 12 are recorded in time series. The RAM 19 temporarily stores latitude / longitude and direction data obtained from the GPS module 12.

  The data processing unit 20 processes data read from and written to a memory card (not shown) connected to the card I / F 21. A memory card is detachably connected to the card I / F 21. This memory card is attached to an analysis device which is an office PC, and data recorded on the memory card is transferred to the analysis device.

  In addition, the vehicle-mounted device 1 is provided with a switch group that accepts various operations by the driver, a speaker that emits sound, and the like (not shown).

  Operation | movement of the onboard equipment 1 which has the said structure is shown. 2 and 3 are flow charts showing a procedure for recording a travel locus. This operation program is stored in the ROM 11 a in the CPU 11 and is periodically executed by the CPU 11.

  FIG. 4A to FIG. 4C are diagrams for explaining the operation of adding position coordinates to be compensated as a travel locus in the non-positioning section. FIG. 4A shows a travel section of the vehicle 5. FIG. 4B shows a non-positioning section in the case where position coordinates are not supplemented to the travel locus. FIG. 4C shows a non-positioning section when position coordinates are compensated as a travel locus.

  The CPU 11 determines whether or not the GPS module 12 is in a non-positioning section where GPS data cannot be received (step S1). As described above, when the vehicle 5 equipped with the vehicle-mounted device 1 enters a valley of a tunnel or a building, the GPS module 12 may not be able to receive a signal (GPS data) from a GPS satellite. For this reason, the CPU 11 determines whether or not the vehicle is in a non-positioning section depending on whether or not a signal can be received.

  When the GPS data can be received instead of the non-positioning section, that is, as shown in FIG. 4A, when the vehicle 5 is traveling in the positioning possible section 6 represented by the solid line in the figure, the CPU 11 The latest latitude / longitude (X1, Y1) and direction Drc1 obtained from the GPS data are temporarily stored in the RAM 19 (step S12). Further, the CPU 11 stores the latest latitude / longitude (X1, Y1) and direction Drc1 in the time series file of the RAM 18 (step S13). Thereafter, the CPU 11 returns to the process of step S1.

  On the other hand, when the vehicle 5 is in the non-positioning section in step S1, that is, when the vehicle 5 is traveling in the non-positioning section 7 represented by the broken line in the drawing, the CPU 11 sets the non-positioning measurement time t of the built-in timer 11c. The value is increased by 1 (step S2). Note that at the beginning of this operation, the non-positioning measurement time t of the built-in timer 11c is initialized to a value of zero.

  The CPU 11 determines whether or not the non-positioning measurement time t of the built-in timer 11c is less than the preset upper limit value Tmax of the non-positioning measurement time (step S3). When the non-positioning measurement time t is equal to or longer than the upper limit value Tmax, the CPU 11 ends this operation as it is.

  On the other hand, when it is less than the upper limit value Tmax, the CPU 11 determines whether or not the current speed of the vehicle 5 is within the measured speed range (predetermined range), that is, whether it is larger than the lower limit value Vmin and smaller than the upper limit value Vmax. It discriminate | determines (step S4).

  Here, the distance obtained by multiplying the upper limit value Tmax of the non-positioning measurement time and the upper limit value Vmax of the speed corresponds to a threshold value for determining whether or not to add the position coordinates to be compensated. That is, supplementary data may be added in a non-positioning section that is less than this threshold, and supplementary data is not added in a non-positioning section that is greater than or equal to this threshold. Thereby, it is possible to prevent the recording of the position coordinates and the display of the traveling locus in the non-positioning section, which may be extremely inaccurate.

  Further, the lower limit value Vmin and the upper limit value Vmax of the vehicle speed use the vehicle speeds of the start point 6a which is the position coordinate last acquired before the non-positioning period and the end point 8a which is the position coordinate first acquired after the non-positioning period. May be set. Further, an average value of the vehicle speed during the non-positioning period may be calculated, and a value obtained by adding a predetermined value (± 10 km / h) to the average value may be set as the vehicle speed lower limit value Vmin and the upper limit value Vmax, respectively.

  If the current speed of the vehicle 5 is outside the measured speed range in step S4, the CPU 11 ends this operation as it is.

  On the other hand, when the current speed of the vehicle is within the measured speed range, the CPU 11 confirms whether or not the GPS data is received by the GPS module 12, and determines whether or not the non-positioning section is ended (step S5). If it is not the end of the non-positioning section, the CPU 11 returns to the process of step S2.

  On the other hand, when it is the end of the non-positioning section, that is, when the vehicle 5 reaches the end point 8a of the non-positioning section 7 and starts traveling in the positioning possible section 8 represented by the solid line in the figure, the CPU 11 The latest latitude / longitude (X2, Y2) and direction Drc2 are stored in the time-series file in the RAM 18 from the GPS data first measured after a period during which GPS data cannot be received (step S6). Further, the CPU 11 reads out the latitude / longitude (X1, Y1) and the direction Drc1 obtained from the GPS data measured last before the period during which GPS data cannot be received from the RAM 19.

Based on these data, the CPU 11 determines whether or not the difference in azimuth (absolute value) is smaller than the azimuth deviation upper limit value Drcmax according to the equation (1) (step S7).
| Drc2-Drc1 | <Drcmax (1)

  When the azimuth difference is equal to or greater than the azimuth deviation upper limit value Drcmax, the CPU 11 ends the operation as it is. As shown in FIG. 4B, when the azimuth of the end point 8a is greatly changed with respect to the azimuth of the start point 6a of the non-positioning section, it is expected that the position coordinates to be compensated greatly deviate from the actual travel locus. Therefore, no compensation data is generated because a correct traveling locus cannot be recorded.

On the other hand, when the azimuth difference is smaller than the azimuth deviation upper limit value Drcmax, the CPU 11 connects the first position coordinate that is the start point 6a and the second position coordinate that is the end point 8a according to Equation (2). On the straight line, position coordinates (Xa, Ya) and direction Drca are calculated as compensation data (step S8). Here, a which is a subscript of Xa, Ya and Drca is represented by 1 + n / t. n is a variable set in the range from the initial value 1 to the non-positioning measurement time t at equal intervals (here 1 second).
Xa = X1 + (X2-X1) × n / t
Ya = Y1 + (Y2-Y1) × n / t
Drca = Drc1 + (Drc2-Drc1) × n / t (2)

  The CPU 11 stores the latest latitude / longitude (Xa, Ya) and direction Drca calculated in step S8 in a time-series file in the RAM 18 (step S9). The CPU 11 that performs the processes of steps S8 and S9 corresponds to an interpolation unit.

  The CPU 11 increases the variable n by 1 (step S10). Here, the value is increased by 1, that is, every second, but may be increased by an arbitrary value (seconds).

  CPU11 discriminate | determines whether the variable n became more than the non-positioning measurement time t (step S11). If it is not longer than the non-positioning measurement time t, the CPU 11 returns to the process of step S8. On the other hand, when the variable n is equal to or longer than the non-positioning measurement time t, the CPU 11 ends this operation. As a result, as shown in FIG. 4C, the compensation data (black circles in the figure) is calculated and recorded at equal intervals within the range of the non-positioning measurement time t. In the figure, the white circles represent positioning data. The vehicle-mounted device in the embodiment of the present invention calculates the compensation data for the non-lateral section as described above.

  The analysis apparatus in the embodiment of the present invention can acquire various data recorded in the vehicle-mounted device from the vehicle-mounted device in the embodiment of the present invention via a memory card. The analysis device according to the embodiment of the present invention can be configured by a general-purpose PC, and is assumed to be installed in an office for managing the operation of the vehicle. The analysis device includes a display for displaying various information, a card I / F that can read or write various data stored in a memory card, an HDD (Hard Disk Drive) that stores map information, A CPU that executes various controls including calculation and display control.

  When the memory card is inserted into the card I / F, the analysis device transfers the data recorded on the memory card. This data includes a time-series file composed of positioning data in the positioning possible section and non-positioning section compensation data. When the CPU of the analysis device acquires the positioning data of the positioning possible section and the compensation data of the non-positioning section from the vehicle-mounted device via the memory card, the map image 42 shown in FIG. 5 is displayed on the display. FIG. 5 is a diagram showing a map image 42 displayed on the display of the analysis apparatus. The CPU of the analysis device, based on the positioning data of the positioning-capable section acquired from the vehicle-mounted device and the supplementary data of the non-positioning section, is read from the HDD and output on the map image 42 output to the display on the traveling locus 31 of the vehicle 5. Draw. In this map image 42, the traveling locus 31 of the vehicle 5 represented by the mark 32 includes positioning data in a positioning possible section, and supplementary data (also referred to as interpolation data) in a non-positioning section within a tunnel that cannot receive a GPS signal. Are displayed in the same display form without distinguishing between them. In addition, a driving | running | working locus | trajectory may be represented by a different display form so that the positioning data of a positioning possible area | region and the compensation data of a non-positioning area may be distinguished.

  Thus, according to the vehicle-mounted device 1 of the present embodiment, when the last positioning data before the non-positioning period and the first positioning data after the non-positioning period satisfy the predetermined condition, the vehicle traveled in a straight line in the non-positioning section. As a result, position information to be supplemented as a trajectory is added during the non-positioning period. Thereby, the position coordinates of the vehicle during a period in which position information cannot be acquired can be easily recorded. Moreover, according to the analysis apparatus of this embodiment, the locus | trajectory which the vehicle drive | worked in the period when position information cannot be acquired can be easily acquired and displayed from onboard equipment.

  In some cases, non-positioning sections such as tunnels may not always be regarded as straight lines, but the GPS data has a positioning error of a few meters. Is determined to be within the allowable range.

  In addition, since the compensation data is created using the positioning data immediately before and after the non-positioning section, the position coordinates of the non-positioning section can be added immediately after entering the positioning possible section, and it has excellent responsiveness. . Thereby, the state where the position of the vehicle remains stopped in the tunnel or the like on the map does not occur while the vehicle is traveling.

  In addition, when GPS signals cannot be received, compensation data is created without mounting an expensive gyro sensor or the like as in the prior art, so that the cost can be reduced and the gyro sensor mounting posture is also limited. do not do.

  Further, when the non-positioning measurement time t reaches the upper limit value Tmax, it is possible to avoid the possibility that the position information of the non-positioning section becomes extremely inaccurate by not creating the compensation data. In addition, when the vehicle speed deviates from the measurement speed range determined by the lower limit value Vmin and the upper limit value Vmax and the vehicle speed changes greatly in the non-positioning section, no compensation data is created, so that the position coordinates in the non-positioning section are actually traveled. It is possible to avoid a large deviation from the trajectory.

  The present invention is not limited to the configuration of the above-described embodiment, and any configuration that can achieve the function of the configuration of the present embodiment is applicable.

  For example, in the above embodiment, the upper limit value Tmax of the non-positioning measurement time is a fixed value, but may be set to a value according to the vehicle speed. FIG. 6 is a graph showing the upper limit value Tmax of the non-positioning measurement time corresponding to the vehicle speed. In this graph, the higher the vehicle speed, the smaller the upper limit value Tmax of the non-positioning measurement time. Thereby, it can suppress that vehicle speed is large and the distance of a non-positioning area becomes remarkably long. In addition, the upper limit value of the non-positioning measurement distance can be made uniform regardless of the vehicle speed.

  Further, in the above embodiment, the case where the vehicle-mounted device mounted on the vehicle creates the compensation data for the non-positioning period has been shown. However, the analysis device which is the office side PC obtains the positioning data via the recording medium or by communication. You may make it produce the compensation data of reading and a non-positioning period. In this case, the CPU of the analysis apparatus according to the present embodiment executes the processing by the vehicle-mounted device described with reference to the flowcharts shown in FIGS. 2 and 3 using the time-series file acquired from the vehicle-mounted device. In particular, the CPU of the analysis apparatus determines the processing in step S1 shown in FIG. 2 based on whether or not data is described in the data array of the time-series file to which latitude / longitude is assigned. Further, the CPU of the analysis apparatus performs the count-up process of the non-positioning measurement time t in step S2 shown in FIG. 2 instead of the count-up process of the element e constituting the data array to which the latitude / longitude is assigned. In addition, about the process of step S4-S13, CPU of an analyzer performs the same process mentioned above.

  Moreover, as an onboard equipment, you may apply to a drive recorder etc. other than a digital tachograph and a car navigation apparatus.

  In addition to a general vehicle, a motorcycle, or a bicycle, the mobile body may be a portable electronic device equipped with a GPS function.

  INDUSTRIAL APPLICATION When recording the locus | trajectory which the moving body moved, this invention can record the positional information of the period when positional information cannot be acquired simply, and is useful.

DESCRIPTION OF SYMBOLS 1 Onboard equipment 5 Vehicle 6, 8 Positioning possible section 6a Start point 7 Non-positioning section 8a End point 11 CPU
11a ROM
11b RAM
11c Timer 12 GPS module 13 Liquid crystal display (LCD)
14 Voice IC
15 Speed I / F
16 Engine I / F
17 Power I / F
18, 19 RAM
20 Data processing unit 21 Card I / F
31 Traveling track 32 Mark 42 Map image

Claims (6)

An in-vehicle device that records a trajectory of a moving object,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
Equipped with a,
The interpolation unit adds the supplemented position coordinates when the time required for the moving body to move between the first position coordinates and the second position coordinates is less than a threshold;
In-vehicle device characterized by that. An in-vehicle device that records a trajectory of a moving object,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
With
The interpolation unit adds the position coordinates to be compensated when a distance between the first position coordinates and the second position coordinates is less than a threshold;
Car mounting device, characterized in that. An in-vehicle device that records a trajectory of a moving object,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
With
The interpolation unit moves between the first position coordinate and the second position coordinate, and when the speed of the moving body is within a predetermined range, adds the supplemented position coordinate.
Car mounting device, characterized in that. An in-vehicle device that records a trajectory of a moving object,
An acquisition unit for acquiring position information of the moving body measured in time series;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
With
The interpolation unit adds the position coordinates to be compensated when the deviation of the azimuth between the first position coordinates and the second position coordinates does not exceed a predetermined value;
Car mounting device, characterized in that. An analysis apparatus for analyzing a trajectory recorded by the vehicle-mounted device according to any one of claims 1 to 4, wherein the moving body has moved,
A display unit;
An acquisition unit for acquiring position information of the moving body recorded by the on-vehicle device;
A map information holding unit for holding map information;
A controller that displays the map information on the display unit, and controls the map information to display the position information acquired from the acquisition unit as the position coordinates of the moving body;
An analysis device comprising: An analysis device that records a trajectory of movement of the moving body, recorded by the vehicle-mounted device that records the trajectory of movement of the moving body,
A display unit;
An acquisition unit for acquiring the position information of the moving object recorded by the vehicle-mounted device;
A map information holding unit for holding map information;
When there is a period during which the position information cannot be acquired by the acquisition unit, the first position coordinate acquired last before the period during which the acquisition cannot be performed is connected to the second position coordinate acquired first after the period during which the acquisition cannot be performed. An interpolation unit for adding position coordinates to be compensated as a trajectory on which the moving body has moved on a straight line;
The map information is displayed on the display unit, and the position information acquired from the acquisition unit and the position information added by the interpolation unit are displayed on the map information as the position coordinates of the moving body. A control unit;
With
When the time required for the moving body to move between the first position coordinate and the second position coordinate is less than a threshold value, the interpolation unit is configured to output the first position coordinate and the second position coordinate. When the distance between the position coordinates is less than a threshold value, when moving between the first position coordinates and the second position coordinates, the speed of the moving body is within a predetermined range, and the first When the deviation of the azimuth between the position coordinates of 1 and the second position coordinates does not exceed a predetermined value, in at least one of the cases, the position coordinates to be compensated are added.
An analysis device characterized by that.

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