JP4064745B2 - ETC motion analysis system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system for recording the behavior of a vehicle passing through a toll gate of an ETC (automatic toll collection) system and the operating status of the device, and reproducing the behavior of the vehicle and the operating status of the device based on the recorded data. This makes it possible to investigate the cause of an accident that occurred in the ETC lane.
[0002]
[Prior art]
In recent years, ETC systems have been introduced on toll roads at various locations, and vehicles that can use this system can pass through toll gates on toll roads non-stop. In order to use the ETC system, an ETC vehicle-mounted device must be attached to the vehicle, an ETC card must be inserted into the vehicle-mounted device, and the vehicle must pass through the gate of an ETC lane equipped with a tollgate communication antenna. In this ETC vehicle-mounted device, identification information of the vehicle-mounted device and information such as the vehicle type and shape of the vehicle on which the vehicle-mounted device is mounted are set as vehicle-mounted device information. The ETC card is an ETC-dedicated IC card issued by a credit card company, and a pass gate ID and a fee collection record are written when the toll gate passes.
[0003]
The composition of the ETC lane differs depending on the toll calculation method, the entrance gate and the exit gate, and also depends on the location conditions.
FIG. 8 shows an example of a flat fee ETC lane. This lane is equipped with an antenna 31 used for wireless communication (road-to-vehicle communication) with the ETC on-vehicle device on the lane, and the island is composed of a plurality of pairs of light projectors and light receivers. "Passable" or "Stop" is displayed for the first vehicle detector S1, the second vehicle detector S2, the third vehicle detector S3 and the fourth vehicle detector S4 to be detected and the vehicle 36 passing through the lane. The roadside indicator 32, a starter 33 that opens the blocking bar when the toll collection process is completed by road-to-vehicle communication, and keeps the blocking bar closed when the toll collection process fails, and a roadside radio A lane control device 35 that controls the operation of the ETC lane based on the communication result of the antenna 31 and the detection results of the vehicle detectors S1 to S4, and the lane monitoring camera 34 that monitors the vehicle leaving the ETC lane, It has.
[0004]
The lane control device 35 uses the detection signal of the first vehicle detector S1 as a trigger to start road-to-vehicle communication with the vehicle-mounted device of the vehicle 36 using the roadside radio. As a result, if the toll is successfully settled, “pass” is displayed on the roadside indicator 32, and the blocking bar of the start controller 33 is set to “open”. When the third vehicle detector S3 detects the vehicle 36, the display content of the roadside indicator 32 is erased, and when the fourth vehicle detector S4 detects the stern of the vehicle, the blocking bar of the start controller 33 is set to “ Return to the closed state.
[0005]
However, if the vehicle 36 cannot be charged normally even when it reaches the position of the second vehicle detector S2, the vehicle 36 is determined to be “abnormal” or “non” ETC vehicle and the roadside indicator 32 displays “ “Stop” is displayed, the blocking rod of the start controller 33 is kept “closed”, the vehicle is stopped, and charges are collected by another means (manual IC card, cash, etc.).
Further, the lane monitoring camera 34 takes a picture using the detection signal of the fourth vehicle detector S4 as a trigger, and the vehicle passing by destroying the blocking rod of the start controller 33 is recorded in a still image.
[0006]
In this way, the lane control device 35 provides all the information on the start and end timing of road-to-vehicle communication, the timing of lighting and extinguishing of the roadside indicator 32, the timing of opening / closing the blocking rod of the start controller 33, etc. Based on the detection results of the installed vehicle detectors S1 to S4, and the vehicles in the lane are not overtaken or overtaken, and are assumed to leave the lane in the order in which they entered the lane. The vehicle management of the vehicle currently running in the lane is performed.
[0007]
[Problems to be solved by the invention]
As described above, in the ETC system, the toll is automatically collected from the ETC vehicle traveling non-stop by the cooperative operation between the roadside device and the vehicle-mounted device, but there is a failure in either the roadside device or the vehicle-mounted device. In some cases, even a vehicle equipped with a vehicle-mounted device cannot pass through the ETC lane non-stop. In reality, there are cases where road-to-vehicle communication errors are likely to be induced due to differences in manufacturers of on-board equipment and the type and shape of the vehicle on which they are mounted.
In addition, it is possible that a malicious driver, while aiming at the unmanned ETC lane, will break through without paying a fee even though the blocking rod of the start control machine 33 is closed.
When such operational problems occur, it is necessary to know the operating conditions of the roadside equipment and the behavior of the vehicle accurately in order to investigate the causes and responsibilities.
[0008]
The present invention responds to these problems, and an object of the present invention is to provide an ETC operation analysis system capable of reproducing and displaying the operation status of roadside devices on an ETC lane and the behavior of a vehicle.
[0009]
[Means for Solving the Problems]
Therefore, in the ETC operation analysis system of the present invention, the detection operation of the vehicle detector in the ETC lane, the communication operation with the vehicle-mounted device of the roadside wireless device, the charging information with an IC card or cash, the display operation of the roadside display and the start A record ID for recording the opening / closing operation of the controller is attached with a vehicle ID of the target vehicle and a time stamp indicating the operation time. From this record data, a vehicle detector, a roadside radio, a roadside indicator, and a start controller And the behavior of the vehicle traveling on the ETC lane are reproduced.
[0010]
In this system, a simulation diagram showing the operation status of roadside equipment at each time and the behavior of the vehicle at the same time is generated from the recorded data, and the simulation time is changed by changing the reproduction time sequentially, and the ETC lane is displayed. The behavior of each vehicle in the vehicle can be generated and displayed in time-space coordinates, and the operation status of roadside equipment on the ETC lane can be correlated with the behavior of the vehicle and displayed in an easy-to-understand manner. .
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the ETC operation analysis system according to the embodiment of the present invention, each data on the roadside device side of the ETC lane is primarily collected by the lane control device, and a time stamp (time information in units of about 1/100 seconds) is attached. The configuration of the ETC lane itself is the same as the conventional one (FIG. 8).
[0012]
The record data (log data) with the time stamp attached by the lane control device 35 is given a toll gate ID and a lane ID, and is sent to the ETC operation analysis system via the relay device.
As shown in FIG. 1, the ETC operation analysis system includes a bulk memory 11 such as a hard disk that accumulates collected log data, a diagram editing unit 12 that edits a later-described diagram from the log data, and a simulation that is described later from the log data. A simulation map editing section 13 for editing a diagram, a vehicle extraction section 14 for extracting log data of the same vehicle from log data collected from each toll gate, a display section 15 for displaying an edited diagram, a simulation map, and the like, And a printing unit 16 that prints out edited diagrams, simulated diagrams, raw log data, and the like.
[0013]
When the first vehicle detector S1 detects the vehicle 36, the lane control device 35 in the ETC lane newly assigns a vehicle management ID number (hereinafter referred to as a vehicle ID) to the vehicle 36. Recorded together with a time stamp indicating the detection time of the vehicle detector S1. Since there is no overtaking of the vehicle in the lane in the toll booth, the vehicles detected by the first vehicle detector S1 are continuously sequentially detected by the downstream second vehicle detector S2, the third vehicle detector S3, and the fourth vehicle detector S4. Will be detected.
[0014]
Therefore, when the second vehicle detector S2 detects the vehicle following the first vehicle detector S1, the lane control device 35 considers that the vehicle with the same vehicle ID has moved to the position of the second vehicle detector S2. The vehicle ID and a time stamp indicating the detection time of the second vehicle detector S2 are recorded together. Hereinafter, similarly, when the third vehicle detector S3 and the fourth vehicle detector S4 detect the vehicle, the vehicle ID and the time stamp are recorded together.
[0015]
The detection records of these vehicle detectors S1 to S4 are transmitted from the lane control device 35 to the ETC motion analysis system 10, and stored in the bulk memory 11 of the ETC motion analysis system 10 as "detection operation records of vehicle detectors" 21. The
Further, the lane control device 35 uses the detection signal of the first vehicle detector S1 as a trigger, and starts road-to-vehicle communication with the vehicle-mounted device of the vehicle 36 using the antenna 31 by the roadside wireless device. With the vehicle ID and time stamp. This communication record includes the vehicle-mounted device information transmitted from the vehicle-mounted device. Even when road-to-vehicle communication ends abnormally, the communication record during that period is left as a communication record. Of course, when the vehicle 36 is a non-ETC vehicle, this communication record does not remain.
[0016]
The communication record including the vehicle ID and the time stamp is transmitted from the lane control device 35 to the ETC operation analysis system 10 and stored in the bulk memory 11 of the ETC operation analysis system 10 as “communication operation record with vehicle-mounted device” 22. .
The lane control device 35 provides the charging information when normal wireless charging is possible by road-to-vehicle communication, and when it is not possible (abnormal ETC or non-ETC vehicle), manual operation of the receiver (cash collection or IC card charging) And the like are transmitted to the ETC operation analysis system 10 together with time stamps, and are stored as “account information record” 26 in the bulk memory 11 of the ETC operation analysis system 10.
[0017]
Furthermore, when the lane control device 35 has been able to charge normally by road-to-vehicle communication, the lane control device 35 displays a “passable” message on the roadside indicator 32 and records the display command content and time stamp together with the vehicle ID. To do. In addition, if the communication cannot be charged, a “stop” message is displayed on the roadside display 32, and the display command content and time stamp are recorded together with the vehicle ID. Similarly, when the vehicle 36 passes the position of the third vehicle detector S3 and instructs to cancel the display of the roadside indicator 32, the vehicle ID, the display cancel command content, and the time stamp are recorded in the same manner.
[0018]
The record relating to the display on the roadside indicator 32 is transmitted from the lane control device 35 to the ETC motion analysis system 10 and stored as “a roadside indicator display operation record” 23 in the bulk memory 11 of the ETC motion analysis system 10.
In addition, when the lane control device 35 is able to charge normally by road-to-vehicle communication, the lane control device 35 issues an instruction to “open” the blocking bar of the start controller 33, and the command content and time stamp together with the vehicle ID. Record. Further, if the communication cannot be charged, an instruction to keep the blocking bar of the start controller 33 “closed” is issued, and the command content and the time stamp are recorded together with the vehicle ID. Further, even when a release instruction for returning the blocking bar of the start controller 33 to the closed state is issued, the command content and the time stamp are recorded together with the vehicle ID.
[0019]
The record relating to the opening / closing operation of the start controller is transmitted from the lane controller 35 to the ETC operation analysis system 10 and stored as “start operation controller opening / closing record” 24 in the bulk memory 11 of the ETC operation analysis system 10.
The lane control device 35 uses the detection signal of the fourth vehicle detector S4 as a trigger to cause the lane monitoring camera 34 to take a still image of the vehicle that has reached the position of the fourth vehicle detector S4. And a time stamp are recorded together with the vehicle ID.
[0020]
The still image recorded together with the time stamp and the vehicle ID is transmitted from the lane control device 35 to the ETC motion analysis system 10 and stored as “camera video” 25 in the bulk memory 11 of the ETC motion analysis system 10.
In addition, as shown in FIG. 2, a surveillance camera 40 is installed above the lane where the entire ETC lane can be seen, and a time stamp is attached to a moving image constantly photographed by the surveillance camera 40. It may be added to the recording of “camera image” 25. 2 indicates the shooting area of the monitoring camera 40. Further, as shown in FIG. 3, the monitoring camera 41 and the monitoring camera 40 are arranged before and after the ETC lane so that individual vehicles can be identified even when a plurality of vehicles travel on the lane. May be.
In addition, if there is a vehicle type discriminating device for identifying the vehicle type or a toll gate display board in the ETC lane, the operation status of such a series of devices is recorded in the same format, and the bulk of the ETC operation analysis system 10 is recorded. Accumulate in memory 11.
[0021]
Next, a process for reproducing the operation state of the roadside device and the vehicle behavior using various log data stored in the bulk memory 11 of the ETC operation analysis system 10 will be described.
The simulation diagram editing unit 13 of the ETC motion analysis system 10 uses the various log data stored in the bulk memory 11 to edit a simulation diagram that schematically reproduces the status of the ETC lane and displays the simulation diagram on the display unit 15.
[0022]
FIG. 4 shows an example of a simulation diagram displayed on the screen of the display unit 15. In this simulated diagram, the toll gate and lane identification information to be reproduced, and the date and time information to be reproduced are displayed, and the roadside devices (that is, vehicle detectors S1 to S4, A graphic representing the antenna 31, the roadside indicator 32 and the starting controller 33) and a graphic representing the approaching vehicle are displayed, and the video of the lane monitoring camera 34 or the monitoring cameras 40 and 41 at the reproduction time is displayed. Is done.
[0023]
For roadside devices and vehicles arranged in the lane, the situation at the reproduction time is displayed. In FIG. 4, the fact that the first vehicle detector S1 detects the vehicle indicates the color of the first vehicle detector S1. It is displayed by changing, the antenna is communicating with the on-vehicle device of the vehicle, the data is displayed as characters xxx, the vehicle ID given to the detected vehicle is “B”, and the road It is displayed that the vehicle-mounted device information of the vehicle B obtained by the inter-vehicle communication is yyy and the wireless charging information is $$. Furthermore, there is no indication on the roadside indicator, indicating that the blocking bar of the start controller is in a closed state.
[0024]
The situation of the roadside equipment, the behavior of the vehicle, and the image of the monitoring camera shown in the simulation diagram change when the reproduction time changes. FIG. 5 shows a simulation diagram of the time when the vehicle B approaches the position of the second vehicle detector S2, and the color of the second vehicle detector S2 indicates that the second vehicle detector S2 detects the vehicle. Is displayed, the fact that the antenna has ended communication is displayed by the disappearance of the “communication” character, and that vehicle B has been identified as an ETC vehicle changes the color of vehicle B to an ETC vehicle color. In addition, the word “pass” appears on the roadside display, indicating that the blocking bar of the start control machine has been opened.
In the simulated view of the time when this vehicle B has advanced and reached the position of the third vehicle detector S3, the roadside indicator disappears, and the stern of the vehicle B has passed through the fourth vehicle detector S4. In the time diagram, the blocking bar of the start controller is closed.
[0025]
On the other hand, FIG. 6 shows a simulation diagram when the toll collection by road-to-vehicle communication is not successful for some reason when the vehicle B reaches the position of the second vehicle detector S2, and the vehicle B is detected as an abnormal ETC. The fact that the vehicle is identified is displayed by changing the color of the vehicle B to the color for the abnormal ETC vehicle, and the cause of the abnormal ETC is displayed with the letter zzz (card expiration date, communication error, etc.), and the roadside display The word “stop” appears on the machine, indicating that the stop rod of the start controller is closed.
Abnormal or non-ETC vehicles are tolled (charged) by the toll, but in that case, information of $$ is added to vehicle B at the toll booth location.
In this way, the simulation diagram reproduces the roadside equipment status, vehicle behavior, and monitoring camera image in the time zone from when the vehicle is detected by the first vehicle detector S1 until it exits the fourth vehicle detector S4 and disappears from the screen. Is done.
[0026]
This simulation can be changed at the same speed as the actual time elapsed to reproduce the behavior of the moving vehicle and the situation of the roadside equipment in a form that is close to reality, and in order to ascertain them in detail. In addition, it can be reproduced with slow motion, frame advance, pause, playback, and fast forward. The on-vehicle device information yyy of vehicle B and the cause zzz of the abnormal ETC are displayed when communication with the on-vehicle device is performed or when the vehicle reaches the second vehicle detector S2, and the vehicle is the fourth vehicle. It is displayed at the top of the vehicle until it goes out of the screen after passing through the detector S4. When the on-vehicle device information yyy or the communication data xxx is clicked at the time of a pause, more detailed on-vehicle device information and communication records are displayed.
[0027]
In order to realize such display of the simulation map, the simulation map editing unit 13 is log data with IDs of tollgates and lanes to be reproduced, and all logs including the vehicle ID of the target vehicle to reproduce the vehicle behavior Data (that is, “Recording operation record of vehicle detector” 21, “Recording operation record with vehicle-mounted device” 22, “Display operation record of roadside indicator” 23, “Recording of opening / closing operation of start controller” 24, “Camera Video "25 etc.) and all log data with time stamps from the time when the target vehicle is detected by the first vehicle detector S1 to the time when it is detected by the fourth vehicle detector S4. Read from 11.
[0028]
These log data are arranged in time series based on the time stamp. Further, the unit time of the reproduction time is set to 10 milliseconds, for example, and the state of the roadside device at each reproduction time is set according to the log data. Further, the vehicle position is set from the time detected by each vehicle detector S1 to S4, and the vehicle position at the time detected by each vehicle detector S1 to S4 is set to the installation position of each vehicle detector S1 to S4. The vehicle speed in the section between the vehicle detectors is determined, the vehicle movement amount in the unit time in each section is calculated, and the vehicle position at each reproduction time is set. The surveillance camera image is associated with each reproduction time by a time stamp attached thereto.
[0029]
In this way, each reproduction time is related to roadside equipment status, vehicle behavior, and surveillance camera image, and the reproduction time is sequentially changed according to the reproduction mode such as real time, slow motion, frame advance, fast forward, pause, playback, etc. The roadside equipment status, vehicle behavior, and surveillance camera image related to the reproduction time are displayed on the simulation diagram.
The simulation diagram edited by the simulation diagram editing unit 13 can be printed out by the printing unit 16.
[0030]
In addition, the diagram editing unit 12 of the ETC motion analysis system 10 uses various log data stored in the bulk memory 11 to edit and display a diagram representing the behavior of each vehicle in the ETC lane in time-space coordinates. Display in part 15.
FIG. 7 shows an example of a diagram displayed on the screen of the display unit 15. The vertical axis of this diagram represents time, and the horizontal axis represents the position on the island. On the horizontal axis, the positions of the vehicle detectors S1 to S4, the roadside indicator 32, and the start controller 33 are set. For the roadside indicator, the time zone indicated as “passing”, the time zone indicated as “stop”, and the time zone not displayed are indicated separately. The time zone in the closed state is shown separately.
[0031]
In addition, the running state of each vehicle is represented by a diagram, and when the displayed vehicle ID (B4 in FIG. 7) is clicked, the passing time (such as m1s1c1) of each vehicle detector of the vehicle is displayed on the screen. And communication contents (xxxx) are displayed in numerical values and characters.
[0032]
In order to create this diagram, the diagram editor 12 “recording operation record of vehicle detector” 21, “recording operation record with vehicle-mounted device” 22 with the ID of the corresponding tollgate and lane from the bulk memory 11 , "Roadside indicator display operation record" 23 and "Starting controller opening / closing operation record" 24 are read, and "Roadside indicator display operation record" 23 is summarized in chronological order based on the time stamp, roadside display Determine the time periods of “pass”, “stop”, and no display of the unit, and summarize the “recording of opening and closing operation of the start controller” 24 in time series based on the time stamp, and the start state of the start bar of the start controller And each time zone of a closed state is determined. Further, the log data of “detection operation record of vehicle detector” 21 is collected for each vehicle ID and traced in time series to determine a diagram representing the running state of each vehicle ID. In addition, when the log data of “detection operation record of vehicle detector” 21 for each vehicle ID and “communication operation record with vehicle-mounted device” 22 for each vehicle ID are held and the vehicle ID is clicked, The passing time and communication record of each vehicle detector corresponding to the vehicle ID are displayed on the screen with numerical values and characters.
[0033]
The diagram edited by the diagram editing unit 12 can be printed out by the printing unit 16.
Further, the extraction unit 14 of the ETC operation analysis system 10 performs bulk processing based on a search key (a toll gate, year / month / day / hour minutes, vehicle number, IC card number, failure code, etc. alone or in combination) input by man-machine operation. "Vehicle detector operation record" 21, "Vehicle communication operation record" 22, "Roadside display operation record" 23, "Start controller's record" collected from each tollgate stored in memory 11 Corresponding log data is extracted from "opening / closing operation record" 24, "billing information record" 26, and the like. The log data extracted by the extraction unit 14 is transmitted to the diagram editing unit 12 and the simulation diagram editing unit 13, and the diagram editing unit 12 and the simulation diagram editing unit 13 can reproduce and display the behavior of each vehicle and the operation state of each device. It is.
[0034]
The printing unit 16 can also print out the contents edited by the diagram editing unit 12 and the simulation diagram editing unit 13 and the raw data stored in the bulk memory 11.
[0035]
Thus, in this ETC motion analysis system, each vehicle behavior in the ETC lane and the state of the roadside equipment at that time can be reproduced with a simulation diagram. In this simulated view, in addition to the real time display, it is possible to display by slow motion, frame advance, fast forward, pause, and playback, so it is possible to examine in detail the vehicle behavior at the time of note and the state of the roadside equipment. In addition, OBE information and communication record details can be displayed, and these information indicate the cause of the abnormality when the vehicle is determined to be an abnormal ETC vehicle (such as abnormal communication with the OBE or IC card expiration date). It can be used for investigation.
Moreover, the monitoring camera image displayed on the simulation diagram can show the overall movement of the ETC lane.
[0036]
It should be noted that, in the display by the simulated diagram, when the related equipment or the like is abnormal, the fact may be displayed by colors, characters, sounds or the like.
In addition, this ETC motion analysis system can reproduce the overall vehicle flow in the ETC lane with a diagram, and can analyze the cause of an accident by comparing the driving conditions of the vehicle of interest and the vehicles before and after it. It becomes possible.
[0037]
Also, by analyzing the operation status of roadside equipment and vehicle behavior in the ETC lane, primary diagnosis such as events that are estimated to be not normal operation, such as equipment abnormalities, road-to-vehicle communication abnormalities, abnormal high-speed driving, forced breakthroughs, etc. When the result is obtained, characters such as "Machine abnormality", "Road-to-vehicle communication abnormality", "Abnormal high-speed driving", and "Forced breakthrough" are displayed on the schematic diagram and diaphragm. You may make it display with.
[0038]
【The invention's effect】
As is clear from the above description, in the ETC operation analysis system of the present invention, the operation state of the roadside device on the ETC lane and the behavior of the vehicle can be correlated and displayed in an easy-to-understand manner. It is possible to know the situation and the behavior of the vehicle accurately. Therefore, when a problem in the operation of the ETC system occurs, it is possible to easily investigate the cause and responsibility.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an ETC motion analysis system according to an embodiment of the present invention. FIG. 2 is a diagram showing an ETC lane provided with one surveillance camera in the ETC motion analysis system according to the embodiment of the present invention. 3 is a diagram showing an ETC lane equipped with two surveillance cameras in the ETC motion analysis system of the embodiment of the present invention. FIG. 4 is a diagram showing a vehicle in the first vehicle detector S1 in the ETC motion analysis system of the embodiment of the present invention. FIG. 5 is a diagram showing a simulation diagram at the time when the vehicle is detected. FIG. 5 is a diagram showing a simulation diagram when a vehicle is detected by the second vehicle detector S2 in the ETC motion analysis system according to the embodiment of the present invention (in the case of an ETC vehicle).
FIG. 6 is a diagram showing a simulation diagram when a vehicle is detected by the second vehicle detector S2 in the ETC motion analysis system according to the embodiment of the present invention (in the case of an abnormal ETC vehicle).
FIG. 7 is a diagram showing a diagram in the ETC motion analysis system according to the embodiment of the present invention. FIG. 8 is a diagram showing roadside equipment arranged in a conventional ETC lane.
S1 First vehicle detector
S2 Second vehicle detector
S3 Third vehicle detector
S4 4th vehicle detector
10 ETC motion analysis system
11 Bulk memory
12 Diagram editor
13 Simulated drawing editor
14 Vehicle extraction unit
15 Display section
16 Printing section
31 Antenna
32 Roadside indicator
33 Start controller
34 lane surveillance camera
35 Lane control device
36 vehicles
40 First surveillance camera
41 Second surveillance camera

Claims (9)

The vehicle ID and operation of the target vehicle are recorded in the recording data that records the detection operation of the vehicle detector in the ETC lane, the communication operation with the vehicle-mounted device of the roadside radio, the display operation of the roadside indicator, and the opening / closing operation of the start controller. A time stamp indicating a time is attached, and the operation status of the vehicle detector, the roadside radio, the roadside indicator, and the start controller and the behavior of the vehicle traveling on the ETC lane are reproduced from the recorded data. ETC motion analysis system. From the recorded data, generate a simulation diagram representing the operation status of the vehicle detector, roadside radio, roadside indicator, and start controller and the behavior of the vehicle at the same time, and change the reproduction time sequentially. 2. The ETC motion analysis system according to claim 1, wherein the transitional simulation diagram is displayed. Real time display that changes the simulation at the same speed as the actual time, slow motion display that changes at a speed slower than the actual time, fast-forward display that changes at a speed faster than the actual time, and each operation 3. The ETC operation according to claim 2, wherein the frame is displayed by a frame advance display that advances an extremely short time, a playback display that changes in a direction opposite to the actual time passage, or a pause display that pauses the change. Analysis system. A still image obtained by photographing a vehicle leaving the ETC lane is attached with a vehicle ID of a target vehicle and a time stamp indicating a photographing time, and the still image is displayed in a part of the simulation diagram in addition to the recording data. The ETC operation | movement analysis system of Claim 2 or 3 characterized by the above-mentioned. 4. A moving image obtained by photographing the entire ETC lane is attached with a time stamp indicating a photographing time, and the moving image is displayed in a part of the simulation diagram in addition to the recorded data. ETC motion analysis system described in 1. The ETC motion analysis system according to claim 1, wherein a diagram representing a behavior of each vehicle in the ETC lane in time-space coordinates is generated and displayed from the recorded data. The ETC operation analysis system according to claim 6, wherein a display state of the roadside indicator and an open / closed state of the start controller are displayed on the time-space coordinates. 6. An ETC motion analysis according to claim 2, 3, 4 or 5, wherein an event that is not a normal motion is estimated, and a character or symbol representing the event is highlighted in the simulated diagram based on the estimation result. system. 7. The ETC motion analysis system according to claim 6, wherein an event that is not a normal motion is estimated, and characters or symbols representing the event are highlighted on the diagram based on the estimation result.

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