JP2010176507A - Bus traveling system, onboard apparatus and bus traveling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bus traveling system capable of notifying a passenger and a person scheduled to get on of the estimated arrival time at a stop without the need of an exclusive vehicle or person to check road conditions. <P>SOLUTION: The bus traveling system includes a bus vehicle loaded with the onboard apparatus, and a display device provided in a stop. The onboard apparatus includes: an information generation part for generating opposite lane information indicating the road traffic information of an opposite lane or delay information by using an imaging part and a position detection part or the like; a transmission control part for transmitting the opposite lane information and the delay information to the bus vehicle of the opposite lane and the display device by a radio communication part; a reception control part for receiving the opposite lane information and the delay information from the bus vehicle of the opposite lane; a time calculation part for calculating the estimated arrival time for the bus vehicle to arrive at the stop on the basis of the received opposite lane information; and a time display part for displaying the calculated estimated arrival time and the received delay information. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a bus operation system, an in-vehicle device, and a bus operation method for notifying a passenger or a prospective passenger of an estimated arrival time until a route bus reaches a next or next stop.

  In recent years, in a route bus operation system, a display device is installed at each stop, and a system for notifying the operation state of each bus vehicle by this display device has been put into practical use. Specifically, for example, the estimated time it takes for the bus vehicle to arrive at the stop where the display device is installed (hereinafter referred to as “estimated arrival time”) and the current position of the bus vehicle are displayed on the display device. Thus, the operating state of the bus vehicle is notified to a person waiting for the bus vehicle at the bus stop (hereinafter referred to as “boarding person”).

  As a method for realizing the above system, for example, a transmitter is provided in each bus vehicle, and a radio signal including a vehicle code for identifying the bus vehicle is transmitted from the transmitter. The display device provided at the stop receives this radio signal by the receiver. When the received electric field intensity exceeds the threshold value, information indicating that the bus vehicle has approached is displayed on the display unit.

  Further, as a further development of the above-described system, Patent Document 1 discloses a vehicle position notification device that performs imaging of traffic conditions while a vehicle equipped with a camera is in operation and transmits the captured image and vehicle position information. It is disclosed. The vehicle position notification device transmits the acquired information to a communication terminal, a bus stop, a bus company computer, or the like. Thereby, the boarding person can know the estimated arrival time from the delay situation and the traffic jam situation of the bus vehicle.

  Further, Patent Document 2 discloses a bus operation support system that displays an expected arrival time while updating it in real time on a display device for each stop. This bus operation support system calculates the estimated arrival time at the next stop every time a stop is started. Further, during traveling, the estimated arrival time is compared with the actual traveling time, the estimated arrival time is corrected based on the comparison result, and transmitted to the display device at the bus stop by radio waves.

JP 2004-46404 A JP 2003-263699 A

  However, in the bus operation system of Patent Document 1, a person who is scheduled to board at the bus stop can know the estimated arrival time of the bus vehicle, but the passenger boarding the bus vehicle until the bus vehicle reaches the bus stop where he / she gets off. The estimated time (hereinafter referred to as “estimated arrival time”) could not be known in the bus vehicle.

  Moreover, in patent document 2, only the estimated arrival time is corrected based on the traveling state of the host vehicle, and the estimated arrival time is not calculated in consideration of the traffic state on the operation route. Therefore, there is a problem in the accuracy of the estimated arrival time.

  The present invention was made in view of the above problems, and estimated arrival time to each stop existing on the bus vehicle operation route without requiring a dedicated vehicle or personnel to investigate the road condition, An object of the present invention is to provide a bus operation system, an in-vehicle device, and a bus operation method capable of notifying passengers and passengers.

  In order to achieve the above object, the bus operating system of the present invention is a bus operating system including a plurality of bus vehicles equipped with an in-vehicle device provided with a display unit and a wireless communication unit. An information generation unit that generates opposite lane information indicating road traffic information in the opposite lane of the lane on which the bus vehicle on which the vehicle-mounted device is mounted travels, and a transmission that controls the wireless communication unit to transmit the opposite lane information A control unit, a reception control unit that controls the wireless communication unit so as to receive the opposite lane information from a bus vehicle traveling in the opposite lane, and a bus vehicle on which the in-vehicle device is mounted A time calculation unit that calculates an estimated arrival time that is estimated to be necessary to reach a stop on the route based on the received opposite lane information, and displays the calculated estimated arrival time It is characterized in that it comprises a time display unit that controls the display unit so.

  According to this configuration, the bus operating system of the present invention is configured to include a plurality of bus vehicles equipped with a vehicle-mounted device including a display unit and a wireless communication unit. The on-vehicle device includes an information generation unit that generates opposite lane information indicating road traffic information on the opposite lane of the bus vehicle on which the on-vehicle device is mounted. Moreover, the transmission control part which transmits opposite lane information by a radio | wireless communication part, and the reception control part which receives opposite lane information from the bus vehicle of an opposite lane are provided. In addition, a time calculation unit that calculates an estimated arrival time until the bus vehicle reaches the next or next stop based on the received opposite lane information, and a time display unit that displays the estimated arrival time are provided. . In order to calculate the estimated arrival time using the road traffic information obtained from the bus vehicle traveling in the opposite lane in this way, it is possible to notify the bus vehicle passengers of the bus operation status, delay due to traffic jams, etc. it can.

  In order to achieve the above object, the bus operation system according to the present invention includes a delay in bus operation that is estimated to be generated in the opposite lane by the information generation unit based on a traffic jam occurring in the opposite lane. The transmission control unit controls the wireless communication unit to transmit the delay time, and the reception control unit receives the delay time from a bus vehicle traveling on the opposite lane. The wireless communication unit is controlled, and the time display unit controls the display unit to display the delay time received by the reception control unit.

  According to this configuration, the information generation unit calculates the delay time of the bus operation that is estimated to occur in the opposite lane due to traffic congestion occurring in the opposite lane. Then, the transmission control unit transmits the calculated delay time. The time display unit of the bus vehicle in the opposite lane that has received this by the reception control unit displays the received delay time on the display unit. For this reason, the bus vehicle on the receiving side does not need to perform calculation processing. Further, it is possible to notify the passenger of the bus vehicle on the receiving side of the delay estimated to occur on the traveling route.

  In order to achieve the above object, in the bus operation system of the present invention, the in-vehicle device includes an imaging unit and a position detection unit, and the information generation unit is driven by a bus vehicle on which the in-vehicle device is mounted. Controlling the imaging unit to image a vehicle traveling in a lane opposite to the lane to be acquired, acquiring longitude / latitude information indicating the position where the imaging was performed by the position detection unit, and a captured image obtained by the imaging, And the opposite lane information including the longitude / latitude information is generated, and the time calculation unit is based on the captured image and the longitude / latitude information included in the opposite lane information received by the reception control unit. Calculate time.

  According to this configuration, the in-vehicle device included in the bus operation system of the present invention includes the imaging unit and the position detection unit. An information generation part images the vehicle of the opposite lane of the bus vehicle with which the vehicle-mounted apparatus is mounted by an imaging part. Then, the captured image and the longitude / latitude information indicating the position where the image is taken are included in the opposite lane information and transmitted. The time calculation unit of the bus vehicle that has received the opposite lane information calculates the estimated arrival time based on the captured image and the longitude / latitude information included in the opposite lane information. Thus, since the road traffic information of the opposite lane is acquired using the camera and the position detection unit, the bus vehicle operator does not need to perform an operation for acquiring the road traffic information.

  In order to achieve the above object, in the bus operation system according to the present invention, the information generation unit analyzes the number of the vehicles included in the image captured by the imaging unit and the traveling state of the vehicle, thereby causing congestion. Calculating a distance, generating the opposite lane information including traffic information indicating the traffic distance, and the time calculating unit based on the traffic information included in the opposite lane information received by the reception control unit Increase or decrease the estimated arrival time.

  According to this configuration, the information generation unit included in the in-vehicle device calculates the congestion distance occurring in the opposite lane by analyzing the number of vehicles included in the image captured by the imaging unit and the traveling state of the vehicle. To do. And the opposite lane information including the traffic jam distance is generated. And this opposite lane information is transmitted to the bus vehicle of an opposite lane. The time calculation unit of the bus vehicle in the opposite lane that has received this increases / decreases the estimated arrival time according to the congestion distance. In other words, the estimated arrival time is increased if the congestion distance is long, and the estimated arrival time is decreased if the congestion distance is short. For this reason, the data size to transmit can be reduced compared with the case where the opposite lane information is transmitted including the captured image.

  In order to achieve the above object, in the bus operation system of the present invention, the transmission control unit has a predetermined bus vehicle that travels in a lane opposite to the lane in which the bus vehicle on which the in-vehicle device is mounted travels. When approaching a distance, the opposite lane information generated by the information generating unit until the position where the approach occurs is transmitted to the bus vehicle in the opposite lane.

  According to this configuration, the transmission control unit included in the in-vehicle device is opposite to the opposite lane information generated by the information generation unit before reaching the approach position when the opposite lane bus vehicle approaches a predetermined distance. Send to lane bus vehicle.

  In order to achieve the above object, the bus operation system of the present invention includes a display device provided at a bus vehicle stop, wherein the display device receives a radio wave; A second display control unit, a second reception control unit for controlling the reception unit so as to receive the opposite lane information from a bus vehicle traveling in a lane opposite to the lane provided with the stop including the display device, and the stop A second time calculation unit that calculates a second estimated arrival time estimated to be necessary until the bus vehicle passing through the bus vehicle reaches a stop on the bus route based on the received opposite lane information And a second time display unit for controlling the second display unit to display the second estimated arrival time.

  According to this structure, the bus operation system of this invention is comprised so that the display apparatus provided in the stop may be included. The display device includes a reception unit that receives radio waves, a second display unit that displays road traffic information, and the like, and a second reception control unit that receives the opposite lane information from the bus vehicle traveling on the opposite lane of the stop by the reception unit. It has. Moreover, the 2nd time calculation part which calculates the 2nd estimated arrival time until the bus vehicle which passes the stop reaches the next or following stop is provided based on the received opposite lane information. Further, a second time display unit for displaying the calculated estimated arrival time on the display unit is provided. As a result, how long it will take for a passenger who is waiting for a bus vehicle at the bus stop to arrive at the next or next bus stop after the bus vehicle on which the passenger is boarding starts the bus Can be notified in advance.

  In order to achieve the above object, the bus operation system of the present invention includes a display device provided at a bus vehicle stop, wherein the display device receives a radio wave; A second reception control unit that controls the reception unit to receive the delay information from a bus vehicle traveling in a lane opposite to the lane in which a stop including the display device is provided; and the second reception control unit A second time display unit for controlling the second display unit to display the delay time received by the reception control unit.

  According to this configuration, the bus operation system includes a display device provided at a bus vehicle stop. The display device includes a receiving unit that receives radio waves and a second display unit. Moreover, the 2nd reception control part which receives delay information from the bus vehicle which drive | works the lane opposite to the lane in which the stop containing a display apparatus was provided is provided. Further, a second time display unit for displaying the received delay time on the display unit is provided. Accordingly, it is possible to notify the boarding person who is waiting for the bus vehicle at the bus stop about the delay that occurs after the next bus car leaving the bus station where the boarding person is present.

  In order to achieve the above object, the in-vehicle device of the present invention includes a display unit and a wireless communication unit, and the in-vehicle device mounted on the bus vehicle is a vehicle on which the on-vehicle device is mounted. An information generating unit that generates opposite lane information indicating road traffic information in the opposite lane of the lane, a transmission control unit that controls the wireless communication unit to transmit the opposite lane information, and a bus that travels in the opposite lane A reception control unit that controls the wireless communication unit so as to receive the opposite lane information from the vehicle, and a bus vehicle on which the in-vehicle device is mounted reaches a stop that exists on the bus vehicle operation route. A time calculation unit that calculates the estimated arrival time estimated to be necessary based on the received opposite lane information, and a time display unit that controls the display unit to display the calculated estimated arrival time. It is characterized by a door.

  According to this configuration, the in-vehicle device of the present invention includes the display unit and the wireless communication unit. Moreover, the information production | generation part which produces | generates the opposite lane information which shows the road traffic information of the opposite lane of the bus vehicle by which a vehicle-mounted apparatus is mounted is provided. Moreover, the transmission control part which transmits opposite lane information by a radio | wireless communication part, and the reception control part which receives opposite lane information from the bus vehicle of an opposite lane are provided. In addition, a time calculation unit that calculates an estimated arrival time until the bus vehicle reaches the next or next stop based on the received opposite lane information, and a time display unit that displays the estimated arrival time are provided. .

  In order to achieve the above object, the in-vehicle device according to the present invention is configured such that the information generating unit is estimated to be delayed in bus operation that is estimated to occur in the opposite lane based on a traffic jam occurring in the opposite lane. The transmission control unit controls the wireless communication unit to transmit the delay time, and the reception control unit receives the delay time from a bus vehicle traveling on the opposite lane. The wireless communication unit is controlled, and the time display unit controls the display unit to display the delay time received by the reception control unit.

  According to this configuration, the information generation unit calculates the delay time of the bus operation that is estimated to occur in the opposite lane due to traffic congestion occurring in the opposite lane. Then, the transmission control unit transmits the calculated delay time. The time display unit of the bus vehicle in the opposite lane that has received this by the reception control unit displays the received delay time on the display unit.

  In order to achieve the above object, an in-vehicle device of the present invention includes an imaging unit and a position detection unit, and the information generation unit detects a lane opposite to a lane in which a bus vehicle on which the in-vehicle device is mounted travels. The imaging unit is controlled to image a traveling vehicle, the latitude / longitude information indicating the position where the imaging is performed is acquired by the position detection unit, and the captured image obtained by the imaging and the longitude / latitude information are obtained. The opposite lane information included is generated, and the time calculation unit calculates the estimated arrival time based on the captured image and the longitude / latitude information included in the opposite lane information received by the reception control unit.

  According to this configuration, the in-vehicle device of the present invention includes the imaging unit and the position detection unit. An information generation part images the vehicle of the opposite lane of the bus vehicle with which the vehicle-mounted apparatus is mounted by an imaging part. Then, the captured image and the longitude / latitude information indicating the position where the image is taken are included in the opposite lane information and transmitted. The time calculation unit of the bus vehicle that has received the opposite lane information calculates the estimated arrival time based on the captured image and the longitude / latitude information included in the opposite lane information.

  In order to achieve the above object, the vehicle-mounted device according to the present invention is configured such that the information generation unit analyzes the number of the vehicles included in the image captured by the imaging unit and the traveling state of the vehicle. Calculating a distance, generating the opposite lane information including traffic information indicating the traffic distance, and the time calculating unit based on the traffic information included in the opposite lane information received by the reception control unit Increase or decrease the estimated arrival time.

  According to this configuration, the information generation unit calculates the congestion distance occurring in the opposite lane by analyzing the number of vehicles included in the image captured by the imaging unit and the traveling state of the vehicle. And the opposite lane information including the traffic jam distance is generated. And this opposite lane information is transmitted to the bus vehicle of an opposite lane. The time calculation unit of the bus vehicle in the opposite lane that has received this increases / decreases the estimated arrival time according to the congestion distance.

  In order to achieve the above object, the bus operating method of the present invention is a bus operating method for operating a bus vehicle, and is information for generating opposite lane information indicating road traffic information of the opposite lane of the lane on which the bus vehicle has traveled. A generating step; a transmitting step for transmitting the opposite lane information; a receiving step for receiving the opposite lane information; and a bus vehicle that has received the opposite lane information by the receiving step exists on an operation route of the bus vehicle. The method includes a time calculation step of calculating an estimated arrival time estimated to be required to reach the stop based on the opposite lane information, and a display step of displaying the calculated estimated arrival time.

  According to this configuration, the bus operation method of the present invention includes an information generation step of generating opposite lane information indicating road traffic information of the opposite lane of the lane on which the bus vehicle has traveled. Moreover, the transmission step which transmits opposite lane information to the bus vehicle of an opposite lane, and the reception step which receives opposite lane information from the bus vehicle of an opposite lane are included. In addition, a time calculating step for calculating an estimated arrival time that is estimated to be necessary until the bus vehicle that has received the opposite lane information in the reception step reaches the stop, and a calculated estimated arrival time. A display step for displaying.

  In order to achieve the above object, the bus operation method of the present invention is a bus operation delay estimated to occur in the opposite lane based on the traffic congestion occurring in the opposite lane of the lane on which the bus vehicle traveled. A delay time calculating step for calculating time; a delay time information transmitting step for transmitting delay time information indicating the delay time; a receiving step for receiving the delay time information; and the delay time information received by the receiving step. A delay time display step for displaying the delay time.

  According to this configuration, the bus operation method of the present invention includes a delay time calculating step of calculating a delay time of bus operation estimated to occur in the opposite lane due to traffic congestion occurring in the opposite lane of the lane on which the bus vehicle has traveled. Contains. Further, the method includes a delay time information transmitting step for transmitting delay time information indicating the delay time and a receiving step for receiving the delay time information. Also included is a delay time display step for displaying the delay time indicated by the delay time information received in the receiving step on a display device or the like.

  According to the present invention, the traffic situation in the traveling direction of the bus vehicle is obtained from the bus vehicle traveling in the opposite lane. For this reason, the traffic situation of a bus operation route can be grasped using only bus vehicles. Moreover, the estimated arrival time to each stop can be notified to the passenger of the traveling bus vehicle.

  Moreover, according to this invention, the opposite lane information or delay information which the bus vehicle acquired is transmitted to the display apparatus provided in the stop. For this reason, it is possible to notify the boarding person at the bus stop of the estimated time it will take for the bus vehicle to be boarded to reach the next bus stop or the next bus stop or later.

It is a block diagram which shows the apparatus structure of the vehicle-mounted apparatus of this invention. It is a block diagram which shows the apparatus structure of the display apparatus of this invention. It is a block diagram which shows the system configuration | structure of the bus operation system of this invention. It is the schematic diagram which represented the road condition typically. It is the schematic diagram which represented the road condition typically. It is a flowchart which shows the notification process of the estimated arrival time which concerns on 1st embodiment. It is a flowchart which shows the notification process of the delay time which concerns on 2nd embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, embodiment shown here is an example and this invention is not limited to embodiment shown here.

[Embodiment 1]
<1-1. About Bus Operation System Configuration>
FIG. 3 is a block diagram showing the configuration of the bus operation system according to the first embodiment of the present invention. This system is configured to include at least a bus vehicle 1, a stop 2, and a GPS (Global Positioning System) satellite 3.

  The bus vehicle 1 is a vehicle on which an in-vehicle device 100 to be described later is mounted, and is operated based on a predetermined route and operation schedule.

  The stop 2 is a facility provided on the bus route where the bus vehicle 1 stops for passenger boarding. A display device 200 is provided at the stop 2. The display device 200 displays the bus operation status, the estimated arrival time of the bus vehicle 1, or the estimated arrival time estimated that the bus vehicle 1 that has started from the stop 2 will reach the next or next stop 2 or the like. To do. Details of the display device 200 will be described later.

The GPS satellite 3 is arranged on the satellite orbit and transmits a specific radio wave (for example, an L1 radio wave of 1.575 GHz) to a ground GPS receiver.
<1-2. About configuration of in-vehicle device>

  FIG. 1 is a block diagram showing an internal configuration of a vehicle-mounted device 100 according to the first embodiment of the present invention. The in-vehicle device 100 of the present embodiment is an electronic device that is mounted on the bus vehicle 1 and constitutes a part of the bus operation system.

  As shown in the block diagram of FIG. 1, the in-vehicle device 100 of the present invention includes at least a control unit 11, a GPS antenna 12 (= position detection unit), a positioning navigation device 13 (= position detection unit), an LCD (Liquid Crystal Display). ) 14 (= display unit), display control unit 15, operation unit 16, camera 17 (= imaging unit), flash memory 18, antenna 19 (= wireless communication unit), and communication control unit 20 (= wireless communication unit) It is configured to include.

  The control unit 11 organically controls the driving of each member of the in-vehicle device 100 and performs overall control of traffic information acquisition processing, estimated arrival time notification processing, and the like. The control unit 11 is a central processing unit for overall control of each device (for example, the positioning navigation device 13). Moreover, the control part 11 is provided with the information generation part 11a-the time display part 11e as a function part implement | achieved by running a program on the arithmetic processing apparatus with which the control part 11 is provided. Details of processing performed by each functional unit will be described later.

  The GPS antenna 12 is a receiver for receiving a specific radio wave (for example, an L1 radio wave of 1.575 GHz) emitted from a GPS satellite. The GPS antenna 12 can receive position information from a plurality of GPS satellites 62. The positioning navigation device 13 is a positioning navigation device that decodes a signal received by the GPS antenna 12 to generate latitude and longitude information and includes a navigation device using a gyro or the like.

  The LCD 14 is a device that displays various information held by the in-vehicle device 100, for example, an estimated arrival time required for the traveling bus vehicle 1 to reach the next stop, traffic information, and the like. The display control unit 15 encodes the image data into a signal that matches the signal format of the LCD 14, performs D / A conversion, and outputs an image signal. The image signal output from the display control unit 15 is sent to the LCD 14 and displayed as an image.

  The operation unit 16 is an input interface for the driver of the bus vehicle 1 to give various instructions to the in-vehicle device 100. The operation unit 16 is configured to include, for example, a plurality of push buttons, touch sensors, and the like.

  The flash memory 18 is a medium for recording various data. For example, the flash memory 18 is used to record a captured image captured by the camera 17, opposite lane information received from another bus vehicle 1, and the like.

The antenna 19 is an antenna for transmitting and receiving radio waves between the bus stop 2 and the bus company 3, and for example, a plurality of diversity antennas are used. The communication control unit 20 demodulates the radio wave received by the antenna 19. When receiving a transmission instruction for the opposite lane information from the transmission control unit 11b, the digital signal including the traffic information is modulated and the radio wave is transmitted by the antenna 19.
<1-3. About the configuration of the display device>

  FIG. 2 is a block diagram showing an internal configuration of the display device 200 according to the first embodiment of the present invention. In addition, the display apparatus 200 of this embodiment is an electronic device that is installed in the bus stop 2 and constitutes a part of the bus operation system.

  As shown in the block diagram of FIG. 2, the display device 200 of the present invention includes at least a control unit 21, an LCD 22 (= second display unit), a display control unit 23, a flash memory 24, an antenna 25 (= receiving unit), and The communication control unit 26 (= receiving unit) is included.

  The control unit 21 organically controls the driving of each member of the display device 200, and performs overall control of traffic information acquisition processing, estimated arrival time notification processing, and the like. The control unit 21 is a central processing unit for overall control of each device. Moreover, the control part 21 is provided with the 2nd reception control part 21a-the 2nd time display part 21c as a function part implement | achieved by running a program on the arithmetic processing apparatus with which the control part 21 is provided. Details of processing performed by each functional unit will be described later.

  The LCD 22 displays various information held by the display device 200, such as an estimated arrival time when the bus vehicle 1 arrives at the next stop 2, an estimated arrival time until the bus vehicle 1 arrives at the next stop, and the like. It is a device to do. The display control unit 23 encodes the image data into a signal that matches the signal format of the LCD 22, performs D / A conversion, and outputs an image signal. The image signal output from the display control unit 23 is sent to the LCD 22 and displayed as an image.

  The flash memory 24 is a medium for recording various data. For example, the flash memory 18 is used to record the opposite lane information received from the bus vehicle 1, the estimated arrival time calculated from the opposite lane information, and the like.

The antenna 25 is an antenna for transmitting and receiving radio waves to and from the bus vehicle 1, and for example, a plurality of diversity antennas are used. The communication control unit 26 demodulates radio waves received by the antenna 25.
<1-4. About arrival time notification processing>

  Here, the outline | summary of the estimated arrival time notification process which the vehicle-mounted apparatus 100 which concerns on 1st embodiment of this invention implements is demonstrated, using the flowchart of FIG. The processing flow shown in FIG. 6 is started when the in-vehicle device 100 mounted on the bus vehicle 1 is in an operating state.

  After the start of this process, in step S110, the information generation unit 11a determines whether or not the bus vehicle 1 on which the in-vehicle device 100 is mounted is traveling. Specifically, for example, travel speed information is acquired from a driving device (not shown) of the bus vehicle 1, and it is determined that the vehicle is traveling when the travel speed exceeds a predetermined value.

  When it is determined that the vehicle is not traveling, the process proceeds to step S150 described later. If it is determined that the vehicle is traveling, the information generator 11a captures the opposite lane by the camera 17 in step S120. For example, it is assumed that the bus vehicle 1 on which the in-vehicle device 100 is mounted is a bus vehicle 1a shown in FIG. In this case, a traffic jam vehicle (= a plurality of general vehicles 4a) existing in the opposite lane of the bus vehicle 1a is imaged.

  Next, in step S130, the information generation unit 11a determines whether imaging for a predetermined distance has been completed after imaging of the opposite lane is started. If imaging for a predetermined distance has not been completed, the process proceeds to step S150 described later. When imaging for a predetermined distance is completed, in step S140, the information generation unit 11a generates opposite lane information indicating the traffic situation of the opposite lane from the captured image and the position information where the imaging has been performed.

  Specifically, for example, the traffic jam distance is calculated by multiplying the number of vehicles included in the captured image by a predetermined constant. As the constant, for example, a value obtained by adding the estimated inter-vehicle distance when the general vehicle 4a is stopped to the estimated average value of the vertical width of the general vehicle 4a is used. Or the form which determines the head vehicle and the last vehicle of traffic congestion by image analysis, and calculates the distance between both vehicles from an image may be sufficient. Alternatively, the position where the first vehicle of the traffic jam was imaged and the position where the last vehicle was imaged are determined from the position information, and the distance between the two positions is calculated from a prepared road map to calculate the traffic jam distance. The form to do may be sufficient.

  Note that the position information uses longitude and latitude information acquired by the GPS antenna 12 and the positioning navigation device 13. In addition, as a method for determining the predetermined distance, for example, a distance obtained by dividing a section from a certain stop to the next stop by a predetermined number, or a distance determined by a fixed value such as 300 m is used.

  Next, in step S150, the transmission control unit 11b determines whether or not it has been detected that the bus vehicle 1 traveling in the opposite lane (hereinafter referred to as “opposite bus”) approaches within a predetermined distance. As a specific detection method, for example, a radio wave having a relatively short transmission distance is always transmitted using the antenna 19, and an approach is detected when a response to the radio wave is obtained from the opposite bus. I reckon.

  When approach is not detected, it transfers to step S170 mentioned later. When the approach is detected, the transmission control unit 11b transmits the opposite lane information acquired in the predetermined area to the opposite bus by the antenna 19 and the communication control unit 20 in step S160. For example, in the case of the road situation shown in FIG. 5, the opposite lane information obtained by the bus vehicle 1a imaging the general vehicle 4a is transmitted to the bus vehicle 1b. Further, the opposite lane information obtained by the bus vehicle 1b imaging the general vehicle 4b is transmitted to the bus vehicle 1a.

  In addition, as a method of determining the predetermined area, for example, a road that has traveled from the first stop where the bus vehicle 1 departs to the oncoming bus approach point is set as the predetermined area. Alternatively, a predetermined area may be a road that has traveled from a stop that has been passed by a predetermined number of stops that have passed so far (for example, a stop that has passed three times ago) to an oncoming bus approaching point.

  Next, in step S170, the reception control unit 11c determines whether or not the opposite lane information is received from the bus vehicle 1 traveling in the opposite lane. The opposite lane information is received by the antenna 19 and the communication control unit 20. For example, in the road situation shown in FIG. 4, since the bus vehicle 1a and the bus vehicle 1b are separated, the opposite lane information cannot be transmitted and received. On the contrary, in the road situation shown in FIG. 5, since the bus vehicle 1a and the bus vehicle 1b are approaching, the opposite lane information can be transmitted and received mutually.

  If no reception is detected, the process proceeds to step S110 again. When reception is detected, the time calculation unit 11d estimates in step S180 that it is estimated that it will take until the receiving-side bus vehicle 1 reaches the next or next stop based on the received opposite lane information. Is calculated.

  A specific calculation method will be described with reference to FIG. In the traffic state shown in FIG. 5, it is assumed that the opposite lane information is transmitted from the bus vehicle 1a to the bus vehicle 1b. In this case, the opposite lane information generated by the bus vehicle 1a indicates the general vehicle 4a in a traffic jam state. For this reason, the bus vehicle 1b that has received this opposite lane information determines that a traffic jam has occurred in the traveling direction and that a delay will occur before reaching the next stop 2a. Then, the delay time corresponding to the traffic jam distance (in this example, for five general vehicles 4a) is calculated by a predetermined calculation formula, and the estimated normal arrival time, that is, no traffic jam is assumed. Add to the estimated arrival time.

  In addition, when the position where the various information included in the received opposite lane information is not coincident with the operation route of the receiving side bus vehicle 1, the information is discarded or invalidated, and the estimated arrival time is calculated. Make it not exist. In addition, the position from which various information was acquired is discriminate | determined based on the positional information contained in the opposite lane information.

  Next, in step S190, the time display unit 11e controls the display control unit 15 so as to display the calculated estimated arrival time on the LCD 14. As a result, for example, a message such as “Five minutes to the next stop” is displayed on the LCD 14. When the display is completed, the process proceeds to step S110 again.

According to the first embodiment described above, the estimated arrival time to the next or subsequent stop 2 is calculated by obtaining traffic information in the traveling direction of the bus vehicle 1 from the oncoming bus. Thus, since the bus vehicle 1 and the vehicle-mounted device 100 are used for traffic information acquisition, it is not necessary to use a dedicated vehicle or personnel for traffic information acquisition. In addition, the estimated arrival time to the next or subsequent stop 2 can be more accurately notified to the passenger of the bus vehicle 1.
[Embodiment 2]

Next, a second embodiment of the present invention will be described. The present embodiment is characterized in that the delay time calculated by the bus vehicle 1 is displayed on the display device 200 of the bus stop 2 to notify the scheduled passenger.
<2-1. About Bus Operation System Configuration>

Since it is the same content as 1st embodiment, description is abbreviate | omitted here.
<2-2. About configuration of in-vehicle device>

Since it is the same content as 1st embodiment, description is abbreviate | omitted here.
<2-3. About the configuration of the display device>

Since it is the same content as 1st embodiment, description is abbreviate | omitted here.
<2-4. Delay time notification process>

  Here, an outline of a delay time notification process performed by the in-vehicle device 100 and the display device 200 according to an embodiment of the present invention will be described with reference to the flowchart of FIG. The processing flow shown in FIG. 7 is started when the operation of the bus vehicle 1 is started and the display device 200 is in an operating state.

  About step S210-step S230, since it is the same as that of step S110-step S130 of 1st embodiment, description is abbreviate | omitted. When imaging for a predetermined distance is completed in step S230, the information generation unit 11a in step S240 determines the delay time of the bus vehicle 1 estimated to occur in the opposite lane (hereinafter, “ Bus delay time ”). Then, delay information indicating the calculated bus operation delay time is generated.

  Specifically, for example, the occurrence state of the traffic jam occurring between the plurality of stops 2 is determined from the traveling state of the vehicle included in the captured image. Then, the bus operation delay time is calculated by a predetermined calculation formula using the number of congested vehicles, the number of lanes in the congested area, the travel speed of the congested vehicle, and the like.

  Next, in step S250, the transmission control unit 11b determines whether or not it has been detected that the stop 2 provided in the opposite lane approaches within a predetermined distance. As a specific detection method, for example, when a radio wave having a relatively short transmission distance is always transmitted using the antenna 19 and a response to the radio wave is obtained from the stop 2, an approach is detected. I reckon.

  When approach is not detected, it transfers to step S210 again. When the approach is detected, the transmission control unit 11b transmits the delay information generated between the predetermined stops 2 to the stop 2 in the opposite lane by the antenna 19 and the communication control unit 20 in step S260. For example, in the case of the road situation shown in FIG. 4, the bus vehicle 1b transmits delay information to the stop 2d.

  Next, the 2nd reception control part 21a of the stop 2 receives delay information from the bus vehicle 1 which drive | works the opposite lane using the antenna 25 and the communication control part 26 in step S270. Then, the second display unit 21 c controls the display control unit 23 so that the bus operation delay time included in the received delay information is displayed on the LCD 22. Thereby, for example, a message such as “There is a delay of two minutes due to traffic jam” is displayed on the LCD 22. When the display is completed, the process proceeds to step S210 again.

According to the second embodiment described above, the delay information calculated by the bus vehicle 1 is transmitted to the stop 2 in the opposite lane. For this reason, to the boarding person who is waiting for the arrival of the bus vehicle 1 at the bus stop 2, after traveling on the bus vehicle 1, the travel time required for the next bus station 1 or the subsequent bus station 2 is more appropriately notified. Can do.
[Other embodiments]

  The present invention has been described with reference to the preferred embodiments and examples. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea. be able to.

Therefore, the present invention can also be applied to the following embodiments.
(A) In the above embodiment, the various functions of the in-vehicle device 100 and the display device 200 related to various processes of the present invention are realized by executing a program on an arithmetic processing device such as a microprocessor. Various functional units may be realized by a plurality of circuits.

  (B) In the above-described embodiment, an example in which a GPS device that is a position detection unit is housed in the in-vehicle device 100 has been described as an example. For example, a configuration may be adopted in which the same operation as described above is performed by mutually providing a communication unit and performing data transfer via the communication unit. Further, the position detection unit is not limited to the GPS device, and a gyro sensor, a vehicle speed sensor, or the like may be used as the position detection unit.

  (C) In the above-described embodiment, as the destination of the opposite lane information and delay information acquired by the in-vehicle device 100, the in-vehicle device 100 mounted on the bus vehicle 1 in the opposite lane or the display device 200 of the stop 2 is taken as an example. Although described, it may be transmitted to a relay device (not shown). In this case, the relay device determines the bus vehicle 1 and the stop 2 that require each information based on the position where each received information is acquired, and transmits each information.

  (D) In the above-described embodiment, the vehicle-mounted device 100 uses a method of analyzing a vehicle image captured by the camera 17 as a method of acquiring the traffic jam distance. However, the traffic jam distance is acquired by a method other than this. Form may be sufficient. For example, the traffic distance may be acquired by accepting the traffic situation of the opposite lane confirmed visually by the driver through the operation unit 16.

  (E) In the first embodiment, the opposite lane information calculated by the bus vehicle 1 is transmitted to the opposite bus. However, the opposite lane information may be transmitted to the display device 200 of the stop 2 in the opposite lane. For example, in the example shown in FIG. 5, when the bus vehicle 1a passes the stop 2d, the opposite lane information is transmitted to the stop 2c in the opposite lane. Receiving this, the second time calculation unit 21b of the stop 2c estimates the time it takes for the bus vehicle 1 passing through the stop 2c to reach the stop 2a or the subsequent stop 2 (= second estimated arrival). Time). Then, the second display unit 21 c displays the calculated second estimated arrival time on the LCD 22. Thereby, it is possible to notify the boarding person waiting for the bus vehicle 1 at the stop 2c of the time until the next bus vehicle 1 arrives at the stop 2a or the like.

  (F) In relation to the above, when the stop 2 receives the opposite lane information from the bus vehicle 1, it is determined whether or not there is an arrival delay in the bus vehicle 1 that arrives next at the receiving stop 2 The form to do may be sufficient. If it occurs, the estimated arrival time at the next or next stop is calculated and notified from the opposite lane information and the arrival delay time. It should be noted that the arrival delay time acquisition method uses the same technology as the conventional technology.

  (G) In the second embodiment, the delay time calculated by the bus vehicle 1 is transmitted to the display device 200 of the bus stop 2 for display. However, the delay time is transmitted and received between the bus vehicles 1, The form which displays delay time in the vehicle-mounted apparatus 100 with which each bus vehicle 1 was equipped may be sufficient. For example, in the example shown in FIG. 5, the delay time calculated by imaging the general vehicle 4a by the bus vehicle 1a is transmitted to the bus vehicle 1b. The bus vehicle 1b transmits the delay time calculated by imaging the general vehicle 4b to the bus vehicle 1a. Thereby, the delay time can be notified to the passenger boarding each bus vehicle 1.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Stop 3 GPS satellite 4 General vehicle 100 Mobile body apparatus 11 Control part 11a Information generation part 11b Transmission control part 11c Reception control part 11d Time calculation part 11e Time display part 12 GPS antenna (position detection part)
13 Positioning navigation device (position detector)
14 LCD (display unit)
15 Display Control Unit 16 Operation Unit 17 Camera (Imaging Unit)
18 Flash memory 19 Antenna (wireless communication part)
20 Communication control unit (wireless communication unit)
200 display device 21 control unit 21a second reception control unit 21b second time calculation unit 21c second time display unit 22 LCD (second display unit)
23 Display Controller 24 Flash Memory 25 Antenna (Receiver)
26 Communication controller (receiver)

Claims (13)

In a bus operation system including a plurality of bus vehicles equipped with a vehicle-mounted device equipped with a display unit and a wireless communication unit,
The vehicle-mounted device generates an opposite lane information indicating road traffic information of the opposite lane of the lane on which the bus vehicle on which the vehicle-mounted device is mounted;
A transmission control unit for controlling the wireless communication unit to transmit the opposite lane information;
A reception control unit that controls the wireless communication unit so as to receive the opposite lane information from a bus vehicle traveling in the opposite lane;
Time calculation for calculating an estimated arrival time that is estimated to be required until the bus vehicle on which the in-vehicle device is mounted reaches a stop on the route of the bus vehicle based on the received opposite lane information And
A bus operation system comprising: a time display unit that controls the display unit to display the calculated estimated arrival time. The information generation unit calculates a delay time of bus operation estimated to occur in the opposite lane based on a traffic jam occurring in the opposite lane,
The transmission control unit controls the wireless communication unit to transmit the delay time;
The reception control unit controls the wireless communication unit to receive the delay time from a bus vehicle traveling in the opposite lane;
The time display unit controls the display unit to display the delay time received by the reception control unit;
The bus operation system according to claim 1. The on-vehicle device includes an imaging unit and a position detection unit,
Longitude / latitude information indicating the position where the information generation unit controls the imaging unit to image a vehicle traveling in a lane opposite to a lane in which the bus vehicle on which the vehicle-mounted device is mounted travels Is acquired by the position detection unit, the captured image obtained by the imaging, and the opposite lane information including the longitude and latitude information is generated,
The time calculation unit calculates the estimated arrival time based on the captured image and the longitude / latitude information included in the opposite lane information received by the reception control unit;
The bus operation system according to claim 1. The information generation unit calculates a traffic jam distance by analyzing the number of the vehicles included in the image captured by the imaging unit and the traveling state of the vehicle, and includes the traffic information indicating the traffic jam distance. Generate lane information,
The time calculation unit increases or decreases the estimated arrival time based on the traffic jam information included in the opposite lane information received by the reception control unit;
The bus operation system according to claim 3. When the transmission control unit reaches a position where the approach occurs when a bus vehicle traveling in a lane opposite to a lane in which the bus vehicle on which the vehicle-mounted device is mounted travels approaches a predetermined distance. Transmitting the opposite lane information generated by the information generation unit to the bus vehicle in the opposite lane,
The bus operation system according to claim 1. The bus operation system includes a display device provided at a bus vehicle stop,
The display device receives the opposite lane information from a bus vehicle traveling in a lane opposite to the lane provided with a receiving unit that receives radio waves, a second display unit, and a stop including the display device. A second reception control unit for controlling the reception unit;
A second time for calculating a second estimated arrival time, which is estimated to be necessary until a bus vehicle passing through the stop reaches a stop existing on the bus vehicle operation route, based on the received opposite lane information. A calculation unit;
A second time display unit for controlling the second display unit to display the second estimated arrival time,
The bus operation system according to claim 1. The bus operation system includes a display device provided at a bus vehicle stop,
The display device receives the delay information from a bus vehicle traveling in a lane opposite to a lane provided with a receiving unit for receiving radio waves, a second display unit, and a stop including the display device. A second reception control unit for controlling the unit;
A second time display unit for controlling the second display unit to display the delay time received by the second reception control unit,
The bus operation system according to claim 2. In a vehicle-mounted device that includes a display unit and a wireless communication unit and is mounted on a bus vehicle,
An information generating unit for generating opposite lane information indicating road traffic information of the opposite lane of the lane on which the bus vehicle on which the vehicle-mounted device is mounted travels;
A transmission control unit for controlling the wireless communication unit to transmit the opposite lane information;
A reception control unit that controls the wireless communication unit so as to receive the opposite lane information from a bus vehicle traveling in the opposite lane;
Time calculation for calculating an estimated arrival time that is estimated to be required until the bus vehicle on which the in-vehicle device is mounted reaches a stop on the route of the bus vehicle based on the received opposite lane information And
A vehicle-mounted apparatus comprising: a time display unit that controls the display unit to display the calculated estimated arrival time. The information generation unit calculates a delay time of bus operation estimated to occur in the opposite lane based on a traffic jam occurring in the opposite lane,
The transmission control unit controls the wireless communication unit to transmit the delay time;
The reception control unit controls the wireless communication unit to receive the delay time from a bus vehicle traveling in the opposite lane;
The time display unit controls the display unit to display the delay time received by the reception control unit;
The vehicle-mounted device according to claim 8. An imaging unit and a position detection unit;
Longitude / latitude information indicating the position where the information generation unit controls the imaging unit to image a vehicle traveling in a lane opposite to a lane in which the bus vehicle on which the vehicle-mounted device is mounted travels Is acquired by the position detection unit, the captured image obtained by the imaging, and the opposite lane information including the longitude and latitude information is generated,
The time calculation unit calculates the estimated arrival time based on the captured image and the longitude / latitude information included in the opposite lane information received by the reception control unit;
The vehicle-mounted device according to claim 8. The information generation unit calculates a traffic jam distance by analyzing the number of the vehicles included in the image captured by the imaging unit and the traveling state of the vehicle, and includes the traffic information indicating the traffic jam distance. Generate lane information,
The time calculation unit increases or decreases the estimated arrival time based on the traffic jam information included in the opposite lane information received by the reception control unit;
The in-vehicle device according to claim 10. In the bus operation method for operating bus vehicles,
An information generating step for generating opposite lane information indicating road traffic information in the opposite lane of the lane on which the bus vehicle has traveled;
A transmission step of transmitting the opposite lane information;
A receiving step for receiving the opposite lane information;
Time for calculating the estimated arrival time that is estimated to be required until the bus vehicle that has received the opposite lane information in the receiving step reaches a stop on the route of the bus vehicle based on the opposite lane information A calculation step;
And a display step for displaying the calculated estimated arrival time. A delay time calculating step for calculating a delay time of bus operation estimated to occur in the opposite lane based on a traffic jam occurring in the opposite lane of the lane on which the bus vehicle has traveled;
A delay time information transmission step of transmitting delay time information indicating the delay time;
Receiving the delay time information; and
A delay time display step for displaying the delay time indicated by the delay time information received by the receiving step;
The bus operation method according to claim 12.

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