JP4912941B2 - Train driving assistance system - Google Patents

Description

  The present invention relates to a train driving assistance system, and more particularly, to a train driving assistance system that assists driving in consideration of a restricted section based on train position information output from a GPS receiver.

  Conventionally, systems such as an ATS (Automatic Train Stop) -P system and an ATS-SX system have been widely used in order to detect a train position and perform safe traveling.

  The ATS-C system is a system that compares the speed check pattern with the train speed, and when the train speed approaches the speed check pattern, activates an approach warning and prompts the driver to perform a brake operation. If it exceeds, the control is performed so that the maximum service brake is operated.

  In addition, when the traffic light is red, the ATS-SX system activates an alarm based on the information of the long ground element when it passes the long ground element, and the emergency brake if neglected for confirmation within 5 seconds after activation. Is controlled to operate. Furthermore, when the speed limit is exceeded by the information from the speed check ground installed in the speed limit section, the emergency brake is operated.

  However, in such a system, if the driver makes a mistake in the brake operation, the brake operates, but an experienced driver knows the restricted section accurately, but has little experience. In the case of a driver, it is necessary to drive while confirming a restricted section and the like, which is a heavy burden on the driver.

  For this reason, conventionally, an automatic train operation (ATO) system that can finely control a train and automatically run the train has been widely used.

  However, the ATO system requires a large facility for installation of the system, and the installation cost is high. For example, it is difficult to apply to a route where a large amount of expenses such as rural areas cannot be applied.

For this reason, conventionally, a driving support system has been proposed that uses a GPS device to grasp the current position of the train to alert the driver or provide location information by the GPS device (non-patent). References 1 and 2).
Proceedings of the 43rd Railway Saipane Symposium, pages 495-498, "Study on Simple Driving Support System" (December 2005) 43rd Railway Saipane Symposium Proceedings pp. 573-576 "Study on Simple Driving Support System" (December 2006)

  However, in the systems described in Non-Patent Documents 1 and 2, based on information from the GPS device, the driver is not alerted or information is provided, and the vehicle is not controlled. Therefore, when the driver does not notice the information from the GPS device or overlooks it, there is a problem that there is no allowance and sufficient safety cannot be ensured.

  The present invention has been made in view of the above points, and does not require large-scale equipment, and can assist driving by a driver with simple control, thereby reducing the burden on the driver. The object is to provide a train driving assistance system.

In order to achieve the above object, the invention according to claim 1 is based on a GPS receiver mounted on a train for receiving a signal from a GPS satellite, and traveling based on position information output from the GPS receiver. A driving assistance device that searches for a restricted section of the route, selects an appropriate deceleration process from the current train speed, and notifies the driver, and the driving assistance device stores the restricted section in the traveling route of the train Limit section database, a notch confirmation unit for confirming whether or not the notch operation has been properly performed after notification to the driver, and a deceleration processing unit for performing the notch operation of the train when the proper notch operation is not performed. And .

According to the first aspect of the present invention, the limited section is searched based on the position information from the GPS receiver and the necessary deceleration process is notified, so that the driver fails to confirm the limited section. However, the necessary processing can be reliably notified without using a large-scale facility and with simple control, and the burden on the driver can be remarkably reduced . In addition, the notch confirmation unit checks whether the notch operation has been performed properly after notifying the driver, and if the proper notch operation is not performed, the deceleration processing unit performs the train notch operation. Therefore, the burden on the driver can be remarkably reduced, and as a result, the train can be run safely. Furthermore, since the limit section is searched from the limit section database based on the position information from the GPS receiver, the limit section can be easily confirmed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram showing an embodiment of a train driving assistance system according to the present invention.
As shown in FIG. 1, a train 1 traveling on a predetermined route is equipped with a GPS receiver 3 that receives a signal from a GPS satellite 2, and the GPS receiver 3 has a latitude of the current train 1. The position information such as longitude can be output. Moreover, the driving assistance apparatus 4 is mounted in the train 1, and the driving assistance system of the train is comprised by the GPS receiver 3 and the driving assistance apparatus 4 in this embodiment.

  FIG. 2 is a block diagram showing an embodiment of a train driving assistance system.

  As shown in FIG. 2, the driving assistance device 4 configuring the train driving assistance system includes a position calculation unit 5 and a train 1 that calculate the current position of the train 1 based on the position information output from the GPS receiver 3. Are respectively provided with a limited section database 6 in which limited sections such as a limited speed section and a stop section are stored. In addition, the driving assistance device 4 is provided with a restricted section searching unit 7 that searches the restricted section database 6 for whether or not a restricted section exists in the traveling direction based on the position information sent from the position calculating unit 5. .

  Further, the driving assistance device 4 is provided with a speed calculation unit 8 that calculates the current speed of the train 1, and the distance to the limit section searched by the limit section search unit 7 and the speed calculation unit 8 calculate it. A brake pattern calculation unit 9 is provided which calculates how much brake pattern the vehicle should travel from the current speed.

  The driving assistance device 4 includes a notch selection unit 10 that selects an appropriate notch based on the brake pattern calculated by the brake pattern calculation unit 9, and the notch selection unit 10 uses the brake pattern calculation unit 9. Based on the brake pattern, for example, the stage of power running cut or brake notch is selected. Further, the driving assistance device 4 is provided with a notifying unit 11 for notifying the driving vehicle that the vehicle travels with the notch selected by the notch selecting unit 10, and according to the notch selected by the notch selecting unit 10, for example, The content of “XXm up to XX curve limit, cut power running” is notified. The notification unit 11 may notify the driver by voice, or may notify the driver visually by displaying on the display.

  Further, the driving assistance device 4 includes a notch confirmation unit 12 that confirms whether or not the driver has performed a notch operation according to the content notified by the notification unit 11.

  Furthermore, the driving assistance device 4 is provided with a deceleration processing unit 13 that automatically performs the notch operation of the train 1 to perform a deceleration process when the notch operation is not performed by the notch confirmation unit 12. The deceleration processing unit 13 appropriately performs, for example, a process of cutting a power running when a power running cut is necessary, a process of operating a brake notch when a deceleration is necessary, or a process of operating an emergency brake when an emergency brake is required. Configured to do.

  Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG.

  In this embodiment, the GPS receiver 3 receives the current latitude and longitude position information of the train 1 from the GPS satellite 2 (ST1), and the position calculation unit 5 based on this position information causes the current position of the train 1 to be present. Is output to the limited section search unit 7 (ST2). Based on the position information sent from the position calculator 5, the restricted section search unit 7 searches the restricted section database 6 to determine whether or not a restricted section such as a restricted section or a stop section exists in the traveling direction of the train 1 ( ST3). When there is no restriction section, the restriction section is searched again based on the position information.

  When there is a restricted section, the brake pattern is calculated from the distance to the restricted section searched by the restricted section searching unit 7 and the current speed calculated by the speed calculating unit 8. (ST4). Subsequently, the notch selection unit 10 selects an appropriate notch based on the brake pattern calculated by the brake pattern calculation unit 9 (ST5).

  When the powering cut is selected by the notch selection unit 10 (ST6), the notification unit 11 notifies that the powering cut is performed (ST7), and when the notch confirmation unit 12 determines that the powering cut is cut. Searches for the limited section based on the position information as it is, and when it is determined by the notch confirmation unit 12 that the powering is not cut (ST8), the powering is cut by the deceleration processing unit 13 (ST9).

  Further, when the deceleration notch is selected by the notch selection unit 10 (ST10), an appropriate deceleration notch is selected by the notch selection unit 10 (ST11), and notification is made that the deceleration notch selected by the notification unit 11 is operated. (ST12). When it is determined by the notch confirmation unit 12 that the deceleration notch has been operated, the limit section based on the position information is sequentially searched, and when the notch confirmation unit 12 determines that the deceleration notch is not operated (ST13). ), Deceleration processing is performed by the deceleration processing unit 13 (ST14).

  Further, when an emergency brake is selected by the notch selection unit 10 (ST15), an emergency brake process is immediately performed by the deceleration processing unit 13 (ST16).

  Therefore, in the present embodiment, the restriction section is searched based on the position information from the GPS receiver 3, the necessary deceleration process is notified by the notification unit 11, and the deceleration process is performed when the driver neglects the deceleration process. Since the deceleration process is automatically performed by the unit 13, even if the driver fails to confirm the restricted section, the necessary process is surely notified without using a large facility and with simple control. This can greatly reduce the burden on the driver. As a result, traveling of the train 1 can be performed safely.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible based on the meaning of this invention.

It is the schematic which shows embodiment of the driving assistance system of the train which concerns on this invention. It is a block diagram showing an embodiment of a train driving assistance system according to the present invention. It is a flowchart which shows operation | movement of embodiment of the driving assistance system of the train which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Train 2 GPS satellite 3 GPS receiver 4 Driving assistance device 5 Position calculation part 6 Restriction area database 7 Restriction area search part 8 Speed calculation part 9 Brake pattern calculation part 10 Notch selection part 11 Notification part 12 Notch confirmation part 13 Deceleration processing part

Claims (1)

A GPS receiver mounted on a train that receives signals from GPS satellites;
A driving assistance device that searches for a restricted section of the travel route based on position information output from the GPS receiver, selects an appropriate deceleration process from the current train speed, and notifies the driver ,
The driving assistance device includes a restriction section database storing restriction sections on a train route, a notch confirmation unit for confirming whether or not a proper notch operation has been performed after notification to the driver, and a proper notch operation. A train driving assistance system comprising: a deceleration processing unit that performs notch operation of the train when the operation is not performed .

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