JP5148893B2 - Unmounted alarm device - Google Patents

Description

  The present invention automatically collects tolls by wirelessly communicating toll collection information mounted on a vehicle and stored in a removable toll storage medium with a wireless roadside device installed on the roadside. The present invention relates to an unmounted alarm device that is used in an in-vehicle device that warns that the charge storage medium is not mounted.

  In conventional toll collection systems for toll roads such as expressways, a method is adopted in which a toll collector collects cash directly from a user at a toll gate or allows a user to input cash into an automatic machine and collect the toll. Has been.

  In contrast, recently, as a toll collection system that does not require delivery of tolls at toll gates, wireless toll processing devices (roadside units) as ground stations have been installed at the entrance gate and exit gate of toll roads, respectively. In addition, there is a system that automatically performs toll collection processing on toll roads by installing on-vehicle equipment that wirelessly communicates information related to toll collection with a toll processing device on a vehicle traveling on a toll road .

  This type of system is known as an automatic toll collection system (ETC: Electronic Toll Collection System, hereinafter referred to as ETC system) as is well known, and when the vehicle passes through the road toll booth booth, the in-vehicle device for ETC and the toll gate By performing transmission / reception processing wirelessly with the driver, the driver can settle the fee without directly exchanging cash or a card with the staff at the toll booth. In this ETC system, when the vehicle passes through the toll booth, the toll is displayed as a payment amount on the character display portion of the in-vehicle device.

The in-vehicle device shown in Patent Document 1 calculates the distance to the toll gate based on the current position information and the toll gate information, and issues a warning if the IC card is not detected when the distance is within a predetermined distance. Thus, a technical idea for preventing the IC card from entering the toll gate without being inserted is known.
JP 2005-71074 A

  However, the in-vehicle device disclosed in Patent Document 1 only enters into a predetermined distance range even when the highway gate is not used when the vehicle runs around the highway gate without an IC card. There was a problem that the IC card was not inserted. For this reason, in order to stop the alarm, it is necessary for the user to insert an IC card or perform a predetermined operation or the like, which causes a problem that the user is bothered and uncomfortable.

  However, there is a sudden vehicle stoppage or accident due to entering the ETC toll booth without forgetting to install the IC card, and the gate does not open. It was not enough to warn of wearing.

  Therefore, in view of the above-described problems, an object of the present invention is to provide an unmounted alarm device that can warn only a user who uses a toll road that the toll storage medium is not mounted.

In order to solve the above problems, the unmounted alarm device according to claim 1 made according to the present invention is shown in FIG.
As shown in the basic configuration diagram, the toll collection information stored in the detachable toll storage medium mounted on the vehicle is wirelessly communicated with a wireless roadside device installed on the roadside of the toll road An unmounted alarm device that is used in an in-vehicle device that automatically collects tolls and warns that the toll storage medium is not installed, and stores roadside device position information indicating the position of the roadside device Position information storage means 12a, position information acquisition means 11a for acquiring position information indicating the current position of the vehicle, and position information storage means 12b for storing position information acquired by the position information acquisition means 11a in time series Based on the plurality of position information stored in the position information storage means 12b and the roadside machine position information stored in the roadside machine position information storage means 12a, the vehicle approaches the roadside machine. An approach determination unit 11b that determines whether or not the charge storage medium is not mounted in response to a determination that the approach determination unit 11b is approaching. And an unattached alarm means 11d for alarming the non-installation in response to the determination that the charge storage medium is not installed by the non-installation determining means 11c, and the vehicle by the approach determining means 11b to the roadside machine. A radio wave transmitting means 15a for transmitting radio waves to the roadside device and a radio wave receiving means 15b for receiving response radio waves transmitted by the radio wave transmitting means 15a. The non-loading determination unit 11c is a unit that determines whether the charge storage medium is not mounted in response to reception of a response radio wave by the radio wave reception unit 15b .

According to the unmounted alarm device of the present invention described in claim 1, the position information acquired by the position information acquiring unit 11a is stored in the position information storage unit 12b in time series, and stored in the position information storage unit 12b. The approach determination means 11b determines whether or not the vehicle is approaching the roadside machine, based on the plurality of position information being stored and the roadside machine position information stored in the roadside machine position information storage means 12a. . When it is determined that the approach determination unit 11b is approaching, it is determined whether or not the charge storage medium is not mounted by the non-mounting determination unit 11c. Is alarmed. When it is determined that the approach determining unit 11b is approaching, the radio wave transmitting unit 15a transmits a radio wave to the roadside machine. When a response radio wave corresponding to the radio wave is received by the radio wave receiving means 15b, it is determined whether or not the charge storage medium is not mounted by the non-loading determination means 11c.

In order to solve the above-mentioned problems, the invention according to claim 2 is characterized in that, as shown in the basic configuration diagram of FIG. 1, in the unmounted alarm device according to claim 1, the position of the gate at the toll gate of the toll road The gate position information acquisition means 11e for acquiring the gate position information indicating the position information storage means 12b, the approach determination means 11b is acquired by the gate position information acquisition means 11e and a plurality of position information stored in the position information storage means 12b It is a means to determine whether the said vehicle is approaching toward the said gate based on the performed gate position information.

According to the unmounted alarm device of the present invention described in claim 2 , when the gate position information indicating the position of the gate of the toll gate is acquired by the gate position information acquisition means 11e, the gate position information and the position information storage are stored. Based on the plurality of pieces of position information stored in the means 12b, the approach determining means 11b determines whether or not the vehicle is approaching the gate.

  As described above, according to the non-installation alarm device of the present invention described in claim 1, roadside machine position information is stored, vehicle position information is acquired and stored in time series, and these position information is stored. When the vehicle is approaching the roadside machine based on the roadside machine position information and the roadside machine position information is determined, a warning is issued if the toll storage medium is not installed. Since the alarm can be issued only when the toll storage medium is not installed and the toll road is not used, it is possible to prevent the user from being alerted only by traveling near the toll gate even though there is no plan to use the toll road. Therefore, since the warning that the toll storage medium is not installed is warned near the toll booth, it is possible to make the user recognize the correct course of the toll booth and to prevent an accident caused by the gate not being opened.

Further, according to the invention described in claim 1, when it is determined that the closer to the roadside device transmits radio waves to the roadside device, receives the response radio wave based on the position information, fee storage medium in unmounted Since it is possible to determine whether or not the vehicle is heading to the toll booth, it is possible to determine whether or not there is a charge storage medium at an appropriate timing close to the toll booth. Can be alarmed.

According to the invention described in claim 2 , in addition to the effect of the invention described in claim 1 , the gate position information is acquired, and it is determined whether or not the vehicle is approaching the gate position information. Therefore, it is possible to consider whether or not the gate is compatible with automatic toll collection. If you are heading to a gate that does not support automatic toll collection, you can block an alarm that is not installed. Therefore, since an unmounted alarm corresponding to the traveling direction of the vehicle can be performed, it is possible to prevent the user from feeling uncomfortable.

  Hereinafter, an embodiment in which the unmounted alarm device according to the present invention is realized by an ETC vehicle-mounted device will be described with reference to the drawings of FIGS.

  In FIG. 2, an automatic toll collection system (ETC: Electronic Toll Collection System, hereinafter referred to as ETC system) 1 includes an ETC on-board device 10 that is arbitrarily mounted on vehicles 2A, 2B, etc., and an ETC dedicated or ETC / The roadside machine 50 which is provided in the general gate 4 and performs radio | wireless communication with the ETC onboard equipment 10 and an electromagnetic wave is provided. The ETC system 1 automatically collects tolls on toll roads based on toll collection information in which wireless communication between the ETC in-vehicle device 10 and the roadside device 50 is performed. An area E indicated by a broken line in FIG. 2 is a target range (which can be arbitrarily set) determined in advance by the present invention, and an unmounted alarm is performed in the area E.

  As shown in FIG. 3, the ETC on-vehicle device 10 is connected to a known navigation device 30. In the best mode, the case where the navigation device 30 is connected to the ETC vehicle-mounted device 10 will be described. However, the present invention is not limited to this, and the navigation device 30 is realized by the ETC vehicle-mounted device 10 alone. Various embodiments such as realization can be realized.

  The ETC in-vehicle device 10 includes a central processing unit (CPU) 11, a memory 12, an IC card slot (slot) 13, a cryptographic LSI 14, an ETC wireless unit 15, an output unit 16, an operation unit 17, and an interface. Part (I / F) 18. The ETC vehicle-mounted device 10 is, for example, a rectangular parallelepiped casing that is thin in the front-rear direction, and is installed on a dashboard such as the vehicles 2A and 2B so as to face obliquely upward with respect to the traveling direction of the vehicle.

  The CPU 11 is in charge of overall control of the ETC on-board device 10, and is a ROM that is a read-only memory storing a program for the CPU 11, a variety of data, and an area necessary for the processing operation of the CPU 11 is freely readable and writable. A RAM or the like. The ROM stores an unattached alarm program for causing the CPU 11 to function as various means such as the position information acquisition means, the approach determination means, the non-attachment determination means, the non-attachment alarm means, and the gate position information acquisition means. When the CPU 11 executes the program, it functions as those means.

  As the memory 12, an electrically erasable / rewritable read-only memory (EEPROM) or the like is used, and a storage area for storing position information indicating the detected current position of the vehicle in time series and a position of the roadside unit 50 are stored. The roadside machine position information storage area for storing the roadside machine position information shown, and the gate storage area for storing the acquired gate position information. Thus, the memory 12 functions as the roadside machine position information storage means and the position information storage means in the claims.

  The position information is position information detected by a GPS receiving unit 32 of the navigation device 30 to be described later, and includes various data such as latitude, longitude, detection date and time indicating the position of the vehicle at the time of detection. Therefore, the traveling direction of the vehicle can be estimated and detected by comparing the latest position information with the previous position information. The roadside machine position information includes data such as latitude and longitude indicating the position of the roadside machine 50 of the toll gate 2.

  The slot 13 is provided with a card-like storage medium (hereinafter referred to as a card) 20 such as an IC card or a memory card, and provided with a discharge key (not shown) used for discharging the inserted card 20. Yes. The slot 13 writes and reads various information designated by the CPU 11 with respect to the inserted card 20. For example, the card 20 is manually inserted into the slot 13, and the card 20 is discharged. A discharge mechanism (not shown) in the slot 13 is automatically performed according to the operation of the key.

  Here, the card 20 is formed in the dimensions of, for example, ISO (International Organization for Standardization) standards, and the memory embedded in the card 20 is passed through card-specific card information such as an identification number related to the card 20, a bank account, and the like. It has various storage areas for storing various data such as electronic cash information indicating the remaining amount of electronic cash reserved for payment of tolls, charges for payment, payment date and time, payment information indicating a toll gate, and the like.

  The encryption LSI 14 is interposed between the CPU 11 and the slot 13 and is configured to encrypt / decrypt various information input / output between them.

  The ETC radio unit 15 includes a modulation / demodulation circuit (not shown) and an antenna 15a projecting from the apparatus main body, and is connected to the radio roadside unit 4 installed at the gate 4 on the toll road. Wireless communication with Then, the CPU 11 performs toll collection information indicating the toll on the toll road by performing wireless communication via the wireless communication unit 15 based on the electronic cash information stored in the card 20 of the slot 13.

  The output unit 16 is connected to the CPU 11 and includes an audio unit 16a and a display unit 16b. The audio unit 16a has a configuration including an amplifier (not shown), amplifies an audio signal input from the CPU 11, and outputs the amplified signal to the outside. The display part 16b is comprised by the liquid crystal display etc. which are exposed to the front surface etc. of the housing of the ETC onboard equipment 10, etc., for example, and is connected to CPU11 via the interface which is not shown in figure. The display unit 16b displays various information such as an alarm screen input from the CPU 11.

  The operation unit 17 is provided at, for example, a front surface portion of the housing below the display unit 16b, and includes a numeric keypad and various operation keys used for inputting a password. The operation unit 17 is connected to the CPU 11 and outputs input data corresponding to the input of the operation key to the CPU 11.

  The I / F 18 is a connection portion that communicates with and controls other devices and devices such as the navigation device 30, and is connected to the navigation device 30 via a cable C or the like. The I / F 18 is connected to the CPU 11, transmits information input from the CPU 11 to the navigation device 30, and outputs information received from the navigation device 30 to the CPU 11.

  Next, as is well known, the navigation device 30 is provided in the driver's seat of the vehicles 2A and 2B, and is located in the vicinity where the vehicles 2A and 2B are traveling with respect to the driver who drives the vehicles 2A and 2B. A map image is displayed, and the current position of the vehicle and the traveling direction of the vehicle are displayed on the map image. Such a navigation device 30 has a route search function, and displays a route searched based on a search condition such as a destination or waypoint input by an operator such as a driver on the map image. .

  As shown in FIG. 3, the navigation device 30 includes a CPU 31, a GPS receiver 32, a TV receiver 33, an output unit 34, an operation unit 35, an interface unit (I / F) 36, and a storage unit 37. And have.

  The CPU 31 controls the navigation device 30 as a whole and stores an application program related to navigation in a built-in ROM or the like. The application program generates map information based on a map database stored in the storage unit 37, The map information is output to the ETC on-board unit 10 via the I / F 36 described later in response to a request from the ETC on-board unit 10.

  The GPS receiving unit 32 uses an antenna 32a to emit radio waves emitted by a plurality of artificial satellites 70 constituting a GPS (global positioning system) in order to detect the current positions of the mounted vehicles 2A and 2B. The current position information of the GPS receiving unit 32 is obtained, and the current position information is output to the CPU 31. The position detection mechanism in the GPS receiver 32 is based on ordinary GPS known to those skilled in the art, but measures the time required for radio waves to reach the GPS receiver 32 from at least three artificial satellites 70. Thus, the exact position of the GPS receiver 32 is calculated.

  The TV receiving unit 33 selects a broadcast wave of a desired channel from the television broadcast waves induced on the antenna 33a, and outputs a television signal converted into an intermediate frequency by a tuner (not shown) to the CPU 31. Then, after amplifying the television signal, the CPU 11 performs processing such as video detection, period separation, and audio detection, outputs the audio signal to the audio unit 34a, and outputs the video signal to the display unit 34b.

  The output unit 34 is connected to the CPU 31 and includes an audio unit 34a and a display unit 34b. The audio unit 34a has a configuration including an amplifier (not shown), and amplifies the audio signal input from the CPU 31 and outputs it to the outside. The display unit 34b displays a video signal or the like input from the CPU 31.

  The operation unit 35 has various key switches for inputting commands such as search conditions and route settings. More specifically, an arrow key for moving the cursor to a desired position on the map image displayed on the display unit 34b, an enter key for confirming or defining input, a menu selection key, and the like are provided.

  The I / F 36 is a connection portion that communicates with and controls other devices and devices such as the above-described ETC on-vehicle device 10, and is connected to the ETC on-vehicle device 10 via the cable C. The I / F 36 is connected to the CPU 31, transmits information input from the CPU 31 to the ETC on-vehicle device 10, and outputs information received from the ETC on-vehicle device 10 to the CPU 31.

  The storage unit 37 is connected to the CPU 31 so that the CPU 31 can read and write data, and various storage media such as a DVD-ROM and a hard disk device are used. And the map database stored in the memory | storage part 37 has several map data required in order to produce | generate the map information which shows the map image of a predetermined range. And in this best form, it has composition which has position data which shows the position of ETC exclusive or ETC / general gate 4 in toll gate 2 as map data, and generates gate position information based on the position data It is possible to do this.

  The CPU 31 of the navigation device 30 configured as described above is configured to output the vehicle position information detected by the GPS receiving unit 32, the map information generated based on the map database stored in the storage unit 37, the gate position information, and the like. It transmits to ETC onboard equipment 10 via F36.

  The roadside device 50 is a wireless facility (interrogator) installed at a toll gate on a toll road as is well known, and as shown in FIG. 4, a CPU 51, a memory 52, a wireless unit 53, and wireless control A unit 54 and an interface (I / F) 55.

  In response to a request from the CPU 51, the wireless control unit 54 controls the wireless unit 53, and transmits and receives data from the wireless unit 53 to the ETC on-vehicle device 10 that is a non-contacting device using radio waves. And based on the received data, while identifying the ETC onboard equipment 10 which was separated from the roadside machine 50 to about several meters, electronic fee information etc. are received. The roadside device 50 transmits the received electronic fee information and the like to the fee processing device via the I / F 55, and fee collection processing is performed. Further, the roadside device 50 is configured to transmit a response radio wave from the radio unit 53 to the vehicle when receiving the radio wave from the ETC in-vehicle device 10 of the approaching vehicles 2A and 2B.

  Next, an example of a processing outline relating to the present invention executed by the ETC on-vehicle device 10 described above will be described below with reference to flowcharts shown in FIGS.

  When the CPU 11 executes the non-installation alarm processing program, in step S11 (position information acquisition means), the CPU 11 transmits a position information acquisition request to the navigation device 30 via the I / F 18, and the GPS reception unit 32 responds to the request. Is acquired by receiving the position information detected in step S12 from the navigation device 30, and in step S12, the acquired position information is stored in the memory 12 in time series as the current position of the vehicles 2A and 2B, and then in step S13. Proceed to

  In step S13, roadside machine position information close to the acquired latest position information is retrieved from the memory 12, and in step S14, it is determined whether there is a roadside machine 50 based on the presence or absence of roadside machine position information. . When it is determined that there is no roadside unit 50 near the vehicle (N in S14), the process returns to step S11 and a series of processes is repeated. On the other hand, when it is determined that there is a roadside device 50 near the vehicle (Y in S14), the process proceeds to step S15.

  In step S15, based on the latest position information in the memory 12, the previous position information, and the roadside machine position information, whether the traveling direction of the vehicles 2A and 2B is toward the roadside machine 50 is detected by various methods. Proceed to step S16. An example of the traveling direction determination method will be described below.

  FIG. 7 shows a traveling direction determination method 1. In FIG. 7, position A (X1, Y1) indicates the previous vehicle position, position B (X2, Y2) indicates the current vehicle position, and position C (X0, Y0) indicates the position of the roadside machine 50. Then, a position O (X0, Y1) and a position O ′ (X2, Y1) are set for the positions A, B, and C, ∠BAO ′ is an angle θ1, ＯCAO is an angle θ2, and ∠BAC is an angle θ. (= Θ1-θ2) is set. Then, the traveling direction determination method 1 determines that the vehicle is traveling toward the roadside device 50 when the angle θ is smaller than a predetermined angle.

  FIG. 8 shows the traveling direction determination method 2. In FIG. 8, in the traveling direction determination method 2, the vehicle position changes in the order of position A (X1, Y1), position B (X2, Y2), position D (X3, Y3), and position E (X4, Y4). In this case, an angle θ11 that is ∠BAC, an angle θ12 that is ∠DBC, and an angle θ13 that is ∠EDC are obtained with reference to the position C (X0, Y0) that is the center position of the roadside machine 50, and θ11 <θ12. In the case of (θ12 <θ13), it is determined that the vehicle is not moving toward the roadside machine 50 and is away.

  In this way, by using a traveling direction determination method suitable for the relationship between the current position of the vehicles 2A and 2B and the position of the roadside machine 50, or by combining a plurality of methods, the traveling direction of the vehicles 2A and 2B can be changed to the roadside. It is detected whether or not the vehicle 50 is headed. It is also possible to identify a road on the basis of map information acquired from the navigation device 10 and determine the traveling direction from the road.

  If it is determined in step S16 that the vehicle is not heading toward the roadside machine 50 (N in S16), the process returns to step S11 and a series of processes is repeated. On the other hand, if it is determined that the vehicle is heading toward the roadside device 50 (Y in S16), the transmission of the radio wave is requested from the ETC radio unit 15 in step S17. Is transmitted obliquely upward, and then the process proceeds to step S18.

  In step S <b> 18, it is determined whether a response radio wave has been received from the roadside device 50 based on an input signal from the ETC radio unit 15. If it is determined that the data has not been received (N in S18), the process returns to step S11, and a series of processing is repeated. On the other hand, if it is determined that it has been received (Y in S18), in step S19 (gate position information acquisition means), an acquisition request for gate position information based on the roadside machine position information is sent to the navigation device 30 via the I / F 18. The gate position information is acquired by being received from the navigation device 30 in response to the request, and then the process proceeds to step S20.

  In step S20, as described above, it is determined whether the traveling direction of the vehicles 2A and 2B is toward the gate 4 based on the latest position information in the memory 12, the previous position information, and the acquired gate position information. Is done. Also, various determination methods such as specifying a road on the basis of map information acquired from the navigation device 30 and determining whether or not there is a gate in the traveling direction can be used. If it is determined that the ETC gate 4 is not headed (N in S20), the process returns to step S11 and a series of processes is repeated. On the other hand, when it determines with heading to the gate 4 (Y in S20), it progresses to step S21.

  In step S21 shown in FIG. 6, the mounting state information indicating mounting / non-mounting of the card is acquired from the slot 13, and the mounting state of the card 20 is detected based on the mounting state information, and step S22 (non-mounting determining means). In step (b), it is determined whether or not the card 20 is not attached based on the detected attachment state. If it is determined that the card 20 is not attached, that is, the card 20 is attached (Y in S22), the process proceeds to step S23.

  In step S23, attached notification information for notifying that the card 20 has been installed is generated and output to the display unit 16b, whereby the installed notification information is displayed on the display unit 16b, and then the process proceeds to step S24. .

  In step S24, as in step S11, position information is acquired from the navigation device 30 via the I / F 18, and in step S25, it is determined whether or not it is outside the target range indicated by region E in FIG. When it is determined that the vehicle is not out of the target range, that is, it is determined that the vehicle is in the target range (N in S25), the process returns to step S24, and a series of processing is repeated to wait for the vehicle to go out of the target range. In this way, after detecting that the card 20 is not attached, the analysis of the traveling direction of the vehicles 2A and 2B is stopped until the vehicle is out of the target range. On the other hand, if it is determined that it is out of the target range (Y in S25), the process returns to step S11 shown in FIG. 5 and a series of processing is repeated.

  If it is determined in step S22 that the card 20 is not attached (Y in S22), non-attachment notification information for notifying that the card 20 is not attached is generated in step S26 (non-attachment alarm means). By being output to the audio unit 16a and the display unit 16b, an alarm audio is output from the audio unit 16a and non-mounting notification information is displayed on the display unit 16b, and then the process proceeds to step S27.

  In step S27, position information is acquired from the navigation device 30 via the I / F 18, and in step S28, it is determined whether or not it is outside the target range indicated by region E in FIG. If it is determined that it is out of the target range (Y in S28), the process returns to step S11 shown in FIG. 5, and a series of processing is repeated.

  On the other hand, if it is determined in step S28 that it is not out of the target range, that is, within the target range (N in S28), communication with the roadside device 50 has been completed in step S29 based on the status flag of the memory 12 and the like. It is determined whether or not. If it is determined that the communication has not been completed (N in S29), it is considered that the vehicles 2A and 2B have not passed through the gate 4, and the process returns to step S26, and the unmounted alarm is continued. On the other hand, when it is determined that communication with the roadside device 50 has been completed (Y in S29), the process returns to step S11 shown in FIG. 5 and a series of processing is repeated.

  In the flowchart described above, the case where the approach determination means in the claims is realized by a series of processes of steps S13 to S20 is described. However, the present invention is not limited to this. For example, the approach determination means The approach determination means can be made into various embodiments such as deleting the function of determining the presence / absence of a response radio wave from the roadside device 50 or deleting the function of determining whether it is heading toward the ETC gate 4 from the configuration. .

  Next, an example of the operation (action) of the present embodiment by the ETC vehicle-mounted device 10 having the above-described configuration will be described below.

  In FIG. 2, when the ETC on-board device 10 mounted on the vehicle 2A and not mounted with the card 20 detects that it has approached the roadside device 50 of the toll gate 3 by entering the target area E, Determine the direction of travel. In FIG. 2, since it is not toward the roadside device 50, it is not determined whether or not the card 20 is not attached. And if the vehicle 2A goes straight on as it is, it will gradually leave the roadside machine 50, so that no alarm is issued even if the card 20 is not installed. That is, even if the card 20 is not attached, even if it approaches the toll gate 3, no alarm is given.

  Further, when the ETC in-vehicle device 10 mounted on the vehicle 2B and not mounted with the card 20 detects that it has approached the roadside device 50 of the toll gate 3 by entering the region E that is the target range, Determine. And if it starts driving | running | working toward the roadside machine 50 and the direction of the gate 4, the non-installation of the card | curd 20 will be detected and an alarm will be performed based on non-attachment notification information. When the user does not have the card 20, the user travels toward the general gate 4 as shown in FIG. When the card 20 is possessed, the card 20 can be mounted on the ETC on-board device 10 and travel toward the ETC gate 4.

  According to the ETC in-vehicle device 10 to which the non-installation warning device of the present invention described above is applied, the roadside machine position information is stored, the position information of the vehicles 2A and 2B is acquired and stored in time series, and these When it is determined that the vehicles 2A and 2B are approaching the roadside machine 50 based on the position information and the roadside machine position information, an alarm is issued if the card 20 is not installed. Can be alerted only when there is a plan to use the card 20 and the card 20 is not installed, so that it is prevented that the user is alerted only by traveling near the toll gate 3 even though there is no plan to use the toll road. be able to. Accordingly, since the card 20 is not installed in the vicinity of the toll booth 3, the user can recognize the correct course of the toll booth 3 and prevent a sudden stop or accident due to the gate 4 not opening. can do.

  If it is determined that the vehicle is approaching the roadside device 50 based on the position information, a radio wave is transmitted to the roadside device 50, and when the response radio wave is received, it is determined whether or not the card 20 is not attached. As a result, it can be determined more accurately whether or not the vehicles 2A and 2B are heading to the toll booth, so that it is possible to warn that the card 20 is not installed at a suitable timing close to the toll booth 3.

  Further, since the gate position information is acquired and it is determined whether or not the vehicles 2A and 2B are approaching the gate position information, it is determined whether or not the gate 4 corresponds to automatic toll collection. Therefore, if you are heading to the gate 4 that supports automatic toll collection, you can issue an alarm that is not installed, and you can go to the gate 4 that does not support automatic toll collection. If this is the case, alarms that are not installed can be prevented. Therefore, since an unmounted alarm corresponding to the traveling direction of the vehicles 2A and 2B can be performed, discomfort to the user can be prevented.

  As described above, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

It is a block diagram which shows the basic composition of the non-wearing alarm apparatus of this invention. It is a figure which shows schematic structure of the automatic toll collection system in which the non-wearing alarm apparatus of this invention is used. It is a block diagram which shows schematic structure of the ETC onboard equipment and navigation apparatus to which the non-wearing alarm apparatus of this invention is applied. It is a block diagram which shows schematic structure of the roadside machine in FIG. It is a flowchart which shows a part of non-wearing alarm process of this invention which CPU of the ETC onboard equipment in FIG. 3 performs. It is a flowchart which shows another one part of the non-wearing alarm process of this invention which CPU of the ETC onboard equipment in FIG. 3 performs. It is a figure for demonstrating an example of the advancing direction judgment method 1. FIG. It is a figure for demonstrating an example of the advancing direction determination method 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic toll collection system 2A, 2B Vehicle 3 Toll gate 4 Gate 10 ETC on-board equipment 11a Position information acquisition means (CPU of ETC on-board equipment)
11b Approach determination means (CPU of ETC onboard equipment)
11c Non-mounting determination means (CPU of ETC on-board unit)
11d Non-wearing alarm means (CPU of ETC on-board unit)
11e Gate position information acquisition means (CPU of ETC onboard equipment)
12a Roadside machine position information storage means (memory of ETC onboard equipment)
12b Position information storage means (memory of ETC on-board unit)
15a Radio wave transmission means (wireless part of ETC OBE)
15b Radio wave receiving means (wireless part of ETC onboard equipment)
20 cards (charge storage media)
30 Navigation device

Claims (2)

Toll collection is automatically performed by wirelessly communicating the toll collection information stored in the detachable toll storage medium mounted on the vehicle with the wireless roadside equipment installed on the roadside of the toll road. An unmounted alarm device that is used in an in-vehicle device that warns that the charge storage medium is not mounted,
Roadside machine position information storage means for storing roadside machine position information indicating the position of the roadside machine;
Position information acquisition means for acquiring position information indicating the current position of the vehicle;
Position information storage means for storing the position information acquired by the position information acquisition means in time series;
Whether or not the vehicle is approaching the roadside machine based on the plurality of position information stored in the position information storage means and the roadside machine position information stored in the roadside machine position information storage means An approach determination means for determining
In response to the determination by the approach determining means that the vehicle is approaching, an unattached determining means that determines whether or not the fee storage medium is not attached;
Non-wearing alarm means for warning the non-wearing in response to the determination that the charge storage medium is not attached by the non-wearing judgment means;
Radio wave transmitting means for transmitting radio waves to the roadside machine in response to the determination by the approach determining means that the vehicle is approaching the roadside machine;
Have a, a radio wave receiving means for receiving a response radio wave of the radio wave the electric wave transmitting means has transmitted,
The non-installation warning device, wherein the non-installation determination unit is a unit that determines non-installation of the charge storage medium in response to reception of a response radio wave by the radio wave reception unit . Gate position information acquisition means for acquiring gate position information indicating the position of the gate at the toll gate of the toll road,
Whether the vehicle is approaching the gate based on the plurality of position information stored in the position information storage means and the gate position information acquired by the gate position information acquisition means. The non-wearing alarm device according to claim 1, which is a means for determining whether or not.

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