JP4659969B2 - Congestion degree display system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a congestion degree display system, and more particularly to a congestion degree display system that displays a congestion degree at a toll road exit or entrance.
[0002]
[Prior art]
Generally, the toll road entrance / exit often has a toll booth, and it takes time for the toll collection operation and the passing / receiving operation of the toll ticket, and it tends to be congested. Therefore, in recent years, automatic toll collection systems that prevent the occurrence of such heavy traffic congestion are becoming widespread.
[0003]
The automatic toll collection system automatically collects tolls by wirelessly communicating between the interrogator installed at the gate of the entrance toll gate or exit toll gate and the transponder installed in the vehicle. It is a system to do. As described above, by performing fee collection wirelessly, the fee collection operation at the entrance and exit toll booth can be omitted, and the fee collection can be performed smoothly without stopping the vehicle.
[0004]
[Problems to be solved by the invention]
However, even if the automatic toll collection system is widespread and most of the vehicles that enter the entrance / exit toll gate are installed vehicles or the toll gate itself is not installed at the entrance / exit, Or there is a merger with the toll road main line, and there is still a possibility that the entrance and exit congestion will occur.
[0005]
By the way, when using a toll road, generally, the driver gets on the toll road from the entrance closest to the departure place, and reaches the destination earliest when getting off from the exit nearest to the destination. However, when the toll road entrance / exit is congested as described above, a situation may occur in which the destination will be reached earlier if the entrance / exit entrance is avoided, avoiding the crowded entrance / exit. In particular, the situation described above is likely to occur when there are a large number of toll road entrances and narrow intervals between entrances and exits as in the Metropolitan Expressway.
[0006]
Therefore, the present invention provides a congestion degree calculation system that pays attention to the problems as described above and can easily select a toll road exit or entrance that can reach the destination earliest by avoiding a crowded entrance. This is the issue.
[0007]
[Means for Solving the Problems]
  In order to solve the above problems, the invention according to claim 1 is characterized in that an exit or entrance of a toll road as shown in the basic configuration diagram of FIG.Tollgate installed inA first antenna AT1 that performs wireless communication with an on-vehicle device equipped with an on-vehicle device that enables toll collection by wireless communication, and at the exit or entranceEach at each toll gate installedProvided and performs the wireless communication with the mounted vehicleFor toll collectionAntennas AT2a to AT2c, the first antenna andToll collection antennaEach of the vehicle and the mounted vehicle using wireless communication, after the mounted vehicle passes the first antenna,Toll collection antennaA first congestion degree calculation means 51a for calculating the degree of congestion of the exit or the entrance based on the calculated passage time, and a branch line 2 before the exit or entrance. And a first display means 40 for displaying the degree of congestion at the exit or the entrance.
[0008]
  According to the first aspect of the present invention, the first antenna AT1 provided in front of the toll road exit or entrance performs wireless communication with an on-board vehicle equipped with an on-vehicle device that enables toll collection by wireless communication. Exit or entranceToll collection provided at each gate of the tollgate installed inAntennas AT2a to AT2c perform wireless communication with the mounted vehicle. The first congestion degree calculating means 51a includes the first antenna AT1 andFor toll collectionUsing wireless communication between each of the antennas AT2a to AT2c and the mounted vehicle, a passing time from when the mounted vehicle passes through the first antenna AT1 until it passes through the toll collection antennas AT2a to AT2c is calculated. Then, based on the calculated transit time, the degree of congestion at the exit or entrance is calculated. The first display means 40 installed between the branch line 2 leading to the exit or entrance displays the degree of congestion at the exit or entrance.
[0009]
  Therefore, the degree of congestion at the exit or the entrance is determined after the mounted vehicle actually passes through the first antenna AT.For toll collectionIt is accurately calculated based on the passage time until the antennas AT2a to AT2c, that is, the toll road exit or entrance. If this degree of congestion is displayed by the first display means 40, the user can grasp the degree of congestion at the exit or entrance before entering the branch line 2 to the exit or entrance, and easily enter the entrance / exit. Can be avoided.Moreover, as an antenna used for calculating the degree of congestion, a toll collection antenna provided for each gate of a toll gate installed at the exit or entrance is used. Therefore, it is not necessary to separately provide an antenna used for calculating the degree of congestion and a toll collecting antenna.
[0012]
  Claim2As described in the basic configuration diagram of FIG.1The congestion level display system according to claim 1, wherein the congestion level display system is installed in front of the toll gate, the second congestion level calculating means 51b for calculating the congestion level for each gate of the toll gate based on the transit time, The congestion degree display system further includes second display means 30 for displaying the degree of congestion for each gate.
[0013]
  Claim2According to the described invention, the second congestion degree calculation means 51b calculates the congestion degree for each gate of the toll gate based on the passage time. The second display means 30 is installed in front of the toll booth and displays the degree of congestion for each gate. Therefore, the user can easily grasp the degree of congestion of each gate of the toll gate. In addition, the congestion degree of each gate of the toll gate is the first antenna AT1 for calculating the congestion degree of the exit or entrance andToll collection antennas AT2a to AT2cCan be used for calculation. Therefore, the first antenna AT1 for calculating the exit or entrance congestion degree andToll collection antennaAT2a to AT2c, the first antenna AT1 for calculating the gate congestion degree of the toll gate, andToll collection antennaThere is no need to provide AT2a to AT2c separately.
[0014]
  Claim3The described invention is claimed.1 or 2The congestion level display system according to claim 1, wherein the first display means is installed in a service area or a parking area provided in front of a branch line toward the toll road exit. Exists in the display system.
[0015]
  Claim3According to the described invention, the first display means 40 is installed in a service area or a parking area provided in front of the branch line 2 toward the toll road exit. Therefore, an appropriate exit can be selected with a margin in the service area or the parking area.
[0016]
  Claim4The described invention is claimed.1-3The congestion degree display system according to any one of claims 1 to 4, wherein the first antenna andToll collection antennaIs provided for each adjacent toll road exit or entrance, the first congestion degree calculating means calculates the congestion degree for each exit or entrance, and the first display means is on the near side The present invention resides in a congestion degree display system that is installed in front of a branch line toward an exit or an entrance of the station and displays the degree of congestion of each exit or entrance.
[0017]
  Claim4According to the described invention, according to the invention described in claim 5, the first antenna AT1,Toll collection antennaAT2a to AT2c are respectively provided for the toll road exit or entrance adjacent to each other. The first congestion degree calculation means 51a calculates the congestion degree for each exit or entrance. The first display means 40 is installed in front of the branch line 2 toward the labor-side exit or entrance, and displays the degree of congestion at each exit or entrance. Therefore, if the user looks at the first display means 40, it can be compared with the degree of congestion at the previous exit or entrance.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
FIG. 2 is a diagram showing a congestion degree display system of the present invention. As shown in the figure, a user joins a general road 4 from a toll road exit 3 provided with a toll gate through a branch line 2 branched from a toll road main line 1. The reference sign Y in the figure indicates the traveling direction of the vehicle.
[0019]
The toll gate has three gates A to C. In the gates A to C described above, automatic toll collection by wireless communication and toll collection by tolls in the booths 1a to 1c are performed in a mixed manner. For this reason, the mounted vehicle on which the vehicle-mounted device 101 capable of automatic fee collection by wireless communication and the non-mounted vehicle 200 on which the vehicle-mounted device 101 is not mounted enter in a mixed manner.
[0020]
Also, in the vicinity of the entrance from the main line 1 to the branch line 2, a notice antenna T1 as a first antenna that performs wireless communication with the mounted vehicle 100 and receives vehicle information and the like stored in the vehicle-mounted device 101; A vehicle detection sensor 20 that detects a passing vehicle toward the notification antenna T1 and a second display 30 that displays the passing time from the notification antenna T1 to each of the gates A to C as the degree of congestion are provided. Furthermore, a first indicator 40 that displays the degree of congestion at the toll road exit is installed on the main line 1 in the traveling direction Y before the branch line 2.
[0021]
On the other hand, each of the gates A to C performs wireless communication with the vehicle-mounted device 101 of the mounted vehicle 100 to receive entrance information, vehicle information, and the like, and this antenna AT2a as a second antenna that transmits information related to toll collection. To AT2c and vehicle detection sensors 2a to 2c for detecting passing vehicles that the vehicle heads to the respective gates are provided.
[0022]
An IC card (not shown) is detachably inserted into the vehicle-mounted device 101. The IC card is prepaid for a toll through a payment classification information indicating whether it is prepaid (postpaid) or postpaid (banked). Information on the remaining amount of cash (in the case of advance payment), payment information which is the remaining amount information (in the case of postpay) of the debited bank account, etc., and a use authentication ID associated therewith are written in advance.
[0023]
The notice antenna AT, the antennas AT2a to AT2c, the vehicle detection sensors 2a to 2e, the first and second indicators 30, 40, and the vehicle detection sensor 20 described above are connected to the charge host computer 50, respectively.
[0024]
The fee host computer 50 includes a central processing unit (CPU) 51 that performs various processes according to a processing program, a ROM 52 that is a read-only memory storing a processing program executed by the CPU 51, and various processing steps in the CPU 51. The RAM 53 is a readable / writable memory having a work area to be used and a data storage area for storing various data.
[0025]
The CPU 51 in the toll host computer 50 described above performs toll collection processing that automatically collects tolls by performing wireless communication with the mounted vehicle 100 using the antennas AT2a to AT2c.
[0026]
The CPU 51 also uses wireless communication performed between the notification antenna AT1, the main antennas AT2a to AT2c, and the mounted vehicle 100, and after the mounted vehicle 100 passes through the notification antenna AT1, the main antennas AT2a to AT2c Gate congestion degree calculation processing for calculating the passing time until passing through any one of the gates A to C, and gate congestion for causing the second display 30 to display the calculated passing time to each gate A to C. Perform the degree display process.
[0027]
The CPU 51 further displays on the first display 40 the exit congestion degree calculation process for calculating the average value of the passing times to the main antennas AT2a to AT2c as the congestion degree of the toll road exit, and the calculated average value of the passing times. The exit congestion degree display process is performed.
[0028]
In addition, although the average value of the passage time to each gate A-C is calculated here as exit congestion degree, for example, the average value of the minimum value and the maximum value of the passage time to each gate A-C, minimum It may be an average value excluding the value and the maximum value. Moreover, you may display so that each passage time of each gate A-C can be identified as an exit congestion degree similarly to the 2nd indicator 30. FIG.
[0029]
The congestion degree display system configured as described above will be described below with reference to the flowchart of FIG. First, the CPU 51 performs initial setting of various areas formed in the RAM 53 in an initial step (not shown).
[0030]
Thereafter, when the mounted vehicle 100 equipped with the vehicle-mounted device 101 tries to pass the warning antenna AT1, the vehicle detection sensor 20 detects the passing vehicle (YES in step S1). In response to detection of a passing vehicle by the vehicle detection sensor 20, the CPU 51 outputs a question signal via the notification antenna AT1 (step S2).
[0031]
When the vehicle-mounted device 101 of the mounted vehicle 100 receives the interrogation signal from the notice antenna AT1, the payment classification information stored in the IC card, the payer information, the use authentication ID, and the identification stored in the nonvolatile memory A response signal including number information and vehicle type information is transmitted. When the CPU 51 receives this response signal (YES in step S3), the CPU 51 stores the identification number information included in the response signal and the notification antenna passing time in the passing vehicle area stored in the RAM 53 (step S4). Thereafter, the CPU 51 increments the mounted vehicle number area M1 formed in the RAM 53 (step S5).
[0032]
On the other hand, when the non-mounted vehicle 200 not equipped with the vehicle-mounted device 101 tries to pass the notification antenna AT1, and the vehicle detection sensor 20 detects a passing vehicle, the CPU 51 outputs a question signal in the same manner. In response, no response signal is received (NO in step S3). At this time, the CPU 51 determines that the non-mounted vehicle 200 has passed without performing wireless communication, and increments the non-mounted vehicle number area M2 formed in the RAM 53 (step S6).
[0033]
The CPU 51 continues the operation from the above steps S1 to S6 for ΔT time (YES in step S7), and then proceeds to the next step S8. With the above operation, the number of mounted vehicles 100 that have passed during the time ΔT is counted in the mounted vehicle number area M1, and the identification number information of the passed mounted vehicle 100 and the notification antenna passing time are stored in the RAM 53, respectively. Is done. Further, the number of non-mounted vehicles 200 that have passed during the ΔT time is counted in the non-mounted vehicle number area M2. Thereafter, the CPU 51 resets the flag F1 to indicate that the passage status information has been collected (step S8).
[0034]
Thereafter, when a passing vehicle is detected again (YES in step S9), the CPU 51 transmits a question signal (step S10), and when a response signal corresponding to this question signal is received (YES in step S11), the CPU 51 is mounted. It is determined that the vehicle 100 has passed, and the identification number information included in the response signal and the notification antenna passing time are held (step S12), and this time the mounted number area M3 is incremented (step S13). On the other hand, if no response signal is received (NO in step S11), it is determined that the non-mounted vehicle 200 has passed, and the non-mounted number area M4 is incremented (step S14).
[0035]
The CPU 51 continues the operation from the above steps S9 to S14 for ΔT time (YES in step S15), and then proceeds to the next step S16. As a result of the operations in steps S1 to S15, the number of mounted vehicles 100 that have passed during the following ΔT times is counted in the mounted vehicle number areas M1 and M3. On the other hand, in the non-mounted vehicle number areas M2 and M4, the number of non-mounted vehicles 200 that have passed during the following ΔT time is counted. Thereafter, the CPU 51 resets the flag F1 again to indicate that the passage status information has been collected (step S16).
[0036]
Further, the CPU 51 interrupts a congestion degree calculation process and an automatic fee collection process, which will be described later, at regular intervals. Hereinafter, the details of the congestion degree calculation process and the automatic fee collection process will be described with reference to the flowchart of FIG.
[0037]
For example, when the on-board device 100 equipped with the vehicle-mounted device 101 enters the gate A and attempts to pass through the antenna AT2a, the vehicle detection sensor 2a detects a vehicle passing through the gate A (YES in step S17). CPU51 outputs a question signal via this antenna AT2a according to detection of the passing vehicle by this vehicle detection sensor 2a (step S18).
[0038]
When the vehicle-mounted device 101 of the mounted vehicle 100 receives the inquiry signal from the antenna AT2a, as in the case of passing through the notice antenna AT1, the payment classification information, payment information, use authentication ID, identification number information, and vehicle type information A response signal including is transmitted. When the CPU 51 receives this response signal (YES in step S19), it generates an exit signal and transmits it via the antenna AT2a (step S20).
[0039]
The exit signal is exit information including exit toll gate information, passage date and time, entrance toll gate information, and toll gate information calculated based on vehicle type information. Upon receiving this exit signal, the vehicle-mounted device 101 generates usage statement information and writes it on the IC card, and the collection of the toll is completed.
[0040]
Thereafter, the CPU 51 functions as first and second congestion degree calculation means, and performs a passage time calculation process (step S21). In the gate congestion degree calculation process, the CPU 51 stores the mounted vehicle stored in the passing vehicle area in the RAM 53 in step S4 of FIG. 3 or step S12 based on the identification number information included in the response signal transmitted from the vehicle-mounted device 101. Read 100 notice antenna passage times.
[0041]
Then, from the read notice antenna passing time and the present antenna passing time which is the current time, a passing time from when the mounted vehicle 100 passes through the notice antenna AT1 to passing through the present antenna AT2a is calculated. Thereafter, the CPU 51 displays the passage time calculated in step S21 as the degree of congestion of the gate A on the display portion indicating the passage time to the gate A formed in the second display 30 (step S22). .
[0042]
If the above operation is repeated for each mounted vehicle 100 entering the toll gate, the second indicator 30 displays the passing time to the gates A to C through which the mounted vehicle 100 has passed. Therefore, the user can grasp the degree of congestion of each of the gates A to C by looking at the passing time displayed on the second display 30 and easily select the gate with the lowest waiting time. be able to. As a result, the waiting time at each of the gates A to C can be averaged.
[0043]
In addition, by providing the second indicator 30 before the toll gate entrance, it is possible to confirm the degree of congestion of the gates A to C before the toll gate entrance. For this reason, it is possible to prevent a dangerous lane change just before the gate, and it is possible to further improve the safety at the toll gate.
[0044]
Next, the CPU 51 calculates an exit congestion degree by calculating an average value of the passage times of the gates A to C currently calculated on the second display 30 and calculated as the exit congestion degree. Processing is performed (step S23). Thereafter, the CPU 51 displays the average value of the passage time calculated in step S23 on the first display 40 (step S24).
[0045]
As described above, the user enters the branch line 2 to the exit by displaying the average value of the passing time as the exit congestion degree on the first indicator 40 provided in front of the branch line 2. Before, the degree of congestion at the exit can be grasped, and the congestion exit can be easily avoided. For this reason, the toll road exit which can reach the destination earliest can be selected.
[0046]
By the way, although the passing time calculated and displayed immediately after the mounted vehicle 100 passes through each of the gates A to C is very accurate, the road condition changes from moment to moment. As the situation that does not pass through A to C continues, the displayed congestion level becomes inaccurate. Therefore, in such a situation, the CPU 51 corrects the degree of congestion based on the passing situation information indicating the passing situation of the vehicle to the advance notice antenna AT1 collected in steps S1 to S16 in FIG.
[0047]
That is, the CPU 51 determines whether or not the flag F1 has been reset to 0 and the passage status information has been collected (step S25). When the flag F1 is reset to 0 (YES in step S26), is the number of vehicles passing between the mounted vehicle number area M1 or M3 and the non-mounted vehicle number area M2 or M4 during the previous ΔT time (0?) In step S26), it is determined whether all the vehicles that have passed during the current ΔT time are non-mounted vehicles 200 (step S27).
[0048]
If either one is applicable (YES in step S26 or YES in step S27), the CPU 51 determines that the number of vehicles 100 that have been mounted is scarce, and determines the passing time to each gate A to C as a notification antenna. Based on the information on the number of vehicles passing through AT1, the corrected passage time is corrected to the expected passage time by the following equation (1), and the corrected passage time is displayed on the second display 30 and B40 (step S28). Proceed to step S29.
[0049]
(A × ti1 + b × ti2) / g (1)
[0050]
Here, a is the number of mounted vehicles 100 that have passed the notice antenna AT1 during the current ΔT time, b is the number of non-mounted vehicles 200 that have passed the notice antenna AT1 during the current ΔT time, and ti1 is the gate A˜. When C is vacant, the time it takes for the mounted vehicle 100 to pass any of the antennas AT2a to AT2c from the notification antenna AT1, ti2 is the time when the gates A to C are vacant, and the non-mounted vehicle 200 is The time taken from passing through the antennas AT2a to AT2c from AT1 is shown.
[0051]
On the other hand, if the number of vehicles that have passed during the previous ΔT time is not zero (NO in step S26), and the vehicles that have passed during the current ΔT time are not all non-mounted vehicles 200 (NO in step S27). Immediately proceeds to step S29. In step S29, 1 is substituted into the flag F1 so that the next passage status information is collected and the correction operation in steps S25 to S29 is not performed until the flag F1 becomes zero.
[0052]
In the embodiment described above, the calculated passage time is displayed on the second display 30. For example, if there is a difference between the currently displayed passage time T2 and the currently calculated passage time T1. The passage time T1 and T2 may be substituted into any of the following formulas (2) to (3) to suppress the amount of change in the displayed passage time.
[0053]
(T1 + T2) / 2 (2)
T2−α × (T2−T1) (α is a predetermined coefficient) (3)
T2−β × | T2−T1 | × (T2−T1) (α is a predetermined coefficient) (4)
[0054]
As described above, if the amount of change in the passage time is suppressed, the displayed degree of congestion does not change drastically, so that it is possible to more easily select a passing gate and an exit.
[0055]
In the above-described embodiment, the passing time is displayed as the degree of congestion. For example, based on the calculated passing time, stepwise indicators such as “crowded”, “slightly crowded”, “vacant”, etc. Either of these may be selected and displayed. However, as in the above-described embodiment, when the passing time is set as the degree of congestion, the user can confirm the specific passing time, and the degree of congestion is easily grasped.
[0056]
Further, in the above-described embodiment, the toll collection main antenna AT1 installed at the exit toll gate on the toll road is used as the second antenna in the claims to reduce costs. However, if no tollgate is installed at the toll road exit, each antenna may be installed as described below to calculate the exit congestion degree.
[0057]
That is, as shown in FIG. 5A, when the vehicle traveling direction is an arrow Yo and the branch line 2 is for getting off from the toll road main line 1 to the general road 3, it is in front of the toll road exit. In addition, the notice antenna AT1 and the vehicle detection sensor 20 are provided at the place where the main line 1 enters the branch line 2, and the main antenna AT2 and the vehicle detection sensor 2 are provided at the exit from the branch line 2 which is a toll road exit to the general road 3, respectively. . And the congestion degree of an exit is calculated using the radio | wireless communication performed between each antenna and a mounted vehicle, and it displays on the 1st indicator 40 arrange | positioned on the main line before the branch line 2. FIG.
[0058]
It is also conceivable to install the above notice and this antenna at the entrance of the toll road to calculate and display the degree of entrance congestion. That is, as shown in FIG. 5B, when the vehicle traveling direction is the arrow Yi and the branch line 2 is for getting on the toll road main line 1 from the general road 3, it is in front of the toll road main line entrance. For example, the notice antenna AT1 is provided at the place where the general road 3 enters the branch line 2, and the main antenna AT2 is provided at the entrance to the main line 1 from the branch line 2 which is a toll road entrance. Then, the degree of congestion at the exit is calculated using wireless communication performed between each antenna and the mounted vehicle, and is displayed on the first display 40 disposed on the general road 3 before the branch line 2. .
[0059]
In the above-described embodiment, the first indicator 40 is provided on the main line 1 before the branch line 2. For example, the first display 40 is provided in the parking area or the service area that is troublesome from the branch line 2. A vessel 40 may be provided. In this case, there is no need to view the display while driving, and an appropriate exit can be selected with a margin in the service area or the parking area.
[0060]
In the above-described embodiment, the degree of congestion at one toll road exit ahead of the first indicator 40 is displayed. However, for example, a notice antenna AT1 and the main antennas AT2a to AT2c are similarly provided at one or more toll road exits after the toll road displaying the exit congestion degree, and the exit congestion degree is calculated, You may make it display on the indicator 40. FIG.
[0061]
In this way, the first indicator 40 can display the degree of congestion of two or more toll road exits, and the previous toll road exit and the adjacent toll road exit between The degree of congestion can be compared, and an appropriate outlet or inlet can be selected more easily.
[0062]
【The invention's effect】
  As described above, according to the first aspect of the present invention, the degree of congestion at the exit or entrance is determined after the mounted vehicle actually passes through the first antenna.For toll collectionAccurately calculated based on the passage time until the antenna passes through the toll road exit or entrance. If this degree of congestion is displayed by the first display means, the user can grasp the degree of congestion at the exit or entrance before entering the branch line to the exit or entrance, and can easily avoid the entrance / exit. Therefore, it is possible to obtain a congestion degree calculation system that can select a toll road exit or an entrance that can reach the destination earliest. Moreover,As an antenna used for calculating the degree of congestion, a toll collection antenna provided for each gate of a toll gate installed at the exit or entrance is used. Therefore, it is not necessary to separately provide an antenna used for calculating the congestion degree and an antenna for collecting charges, so that it is possible to obtain a congestion degree calculation system that reduces costs.
[0064]
  Claim2According to the described invention, the user can easily grasp the degree of congestion of each gate of the toll gate. In addition, the degree of congestion at each gate of the toll gate is the first antenna for calculating the degree of congestion at the exit or entrance,Toll collectionIt can be calculated by diverting the antenna. Therefore, the first antenna for calculating the exit or entrance congestion degree andToll collectionAnd a first antenna for calculating the gate congestion degree of the toll gate andToll collectionTherefore, it is possible to obtain a congestion degree calculation system that can average the waiting time at each gate at a low cost.
[0065]
  Claim3According to the described invention, it is possible to obtain a congestion degree calculation system capable of selecting an appropriate exit with a margin in a service area or a parking area.
[0066]
  Claim4According to the described invention, since the user can compare the degree of congestion of the previous exit or entrance by looking at the first display means, it is even easier to select an appropriate exit or entrance. It is possible to obtain a congestion degree calculation system capable of
[Brief description of the drawings]
FIG. 1 is a diagram showing a basic configuration diagram of a congestion degree display system of the present invention.
FIG. 2 is a diagram showing an embodiment of a congestion degree display system according to the present invention.
FIG. 3 is a flowchart showing a processing procedure of a CPU constituting the congestion degree display system of FIG. 2;
4 is a flowchart showing a procedure of CPU congestion degree calculation / automatic charge collection processing that constitutes the congestion degree display system of FIG. 2;
FIG. 5 is a diagram for explaining a case where the congestion degree display system of the present invention is installed at a toll road entrance or exit.
[Explanation of symbols]
AT1 first antenna (notice antenna)
AT2a to AT2c Second antenna (this antenna)
30 Second display
40 First display
51a First congestion degree calculation means (CPU)
51b Second congestion degree calculation means (CPU)

Claims (4)

A first antenna that performs wireless communication with an onboard vehicle that is provided in front of a toll booth installed at the exit or entrance of a toll road and that is equipped with a vehicle-mounted device that enables toll collection by wireless communication;
An antenna for toll collection that is provided at each gate of the toll gate installed at the exit or entrance, and performs the wireless communication with the mounted vehicle,
And wherein each of the first antenna and the antenna for the toll collection, by using the wireless communication performed between the equipped vehicle, from the equipped vehicle passes through the first antenna, the toll collection A first congestion degree calculating means for calculating a passing time until the antenna passes through and calculating the degree of congestion at the exit or the entrance based on the calculated passing time;
A congestion degree display system, comprising: a first display unit that is installed in front of a branch line toward the exit or the entrance and displays the degree of congestion of the exit or the entrance. The congestion degree display system according to claim 1 ,
A second congestion degree calculating means for calculating a congestion degree for each gate of the toll gate based on the transit time;
A congestion degree display system, further comprising: a second display unit that is installed in front of the toll gate and displays the degree of congestion for each gate. The congestion degree display system according to claim 1 or 2 ,
The congestion display system is characterized in that the first display means is installed in a service area or a parking area provided in front of a branch line toward the toll road exit. It is a congestion degree display system in any one of Claims 1-3 ,
The first antenna and the toll collecting antenna are respectively provided for a toll road exit or entrance adjacent to each other,
The first congestion degree calculating means calculates a congestion degree for each exit or entrance,
The first display means is installed in front of a branch line toward an exit or entrance on the near side, and displays the degree of congestion at each exit or entrance.

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