JPH11238200A - Radio type vehicle operation display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately and surely display operation conditions when plural route buses approach the same bus stop and leave and to improve the reliability of reporting the operation conditions. SOLUTION: A radio base station 2 receives and gathers additional route bus information from route bus radio mobile stations 1 loaded on the route buses of the entire area of an operation system by radio polling control. The radio base station 2 instructs the display of the operation conditions relating to the approaching route buses to a bus stop radio base station 3 stored in the received additional route bus information. After the display of the operation conditions in the bus stop radio base stations 3-1-3-3, at the time of receiving an approach display stop command from the route bus radio mobile station 1, the display of the operation conditions at present is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless vehicle operation display system for displaying an approach to a stop when a vehicle performs a regular operation, and more particularly, to a regular operation in which a route bus stops at each bus stop in an operation system. Display the operation status related to the route bus approaching the bus stop in operation, or
The present invention relates to a wireless vehicle operation display system that stops displaying when the user is away.

[0002]

2. Description of the Related Art Conventionally, regular operation is performed in which a route bus stops at each bus stop in an operation system, and when the route bus approaches the bus stop, a radio which displays an operation status related to the route bus on a board is provided. A system vehicle operation display system is used. As this wireless bus operation display system, for example, AVM (Automatic Vehicle Monitor)
ing) Systems are well known. In this AVM system,
The bus mobile number responds to calls made when passing through the service area of a number of radio base stations installed in the operation control area (route bus operation system range),
The system number, destination, and final display signal are transmitted. A large number of wireless base stations receiving this information transmit the information to the operation management base station through a dedicated cable line or the like.

[0003] The operation management base station receiving this information grasps the current operation status of the route bus, transmits this operation status information to the bus stop, and displays this operation status to inform the user. As the notification of the operation status, the operation status such as a route bus operation system, a destination, a scheduled passage time, an actual passage time, a next passage time, and whether or not the last bus has passed is displayed on the board. Through this display, convenience is provided for route bus users whose arrival time at the bus stop is likely to change.

[0004] As a conventional example of such a wireless bus operation display system, the examples of Japanese Patent Application Laid-Open Nos. Hei 5-12597 and Hei 63-288400 are known. Of the above, in the former conventional example, wireless communication is performed between a mobile station mounted on a bus and a base station provided at a bus stop, and the operation status related to the approaching route bus is displayed, and this bus is displayed. After the operation is completed, the operation management data is transmitted from the mobile station mounted on the bus to the base station installed at the management location at the bus parking or management location, and the centralized management of the operation management data simplifies the configuration of the operation management system. It is trying to make it. In the latter conventional example, the current travel position of the route bus is specified from the travel distance that is known in advance, and the current travel position of the route bus is grasped by a vehicle management office or the like.

[0005] Further, as an improvement plan relating to this type of wireless bus operation display system, the applicant of the present invention has disclosed in Japanese Patent Application No. Hei.
No. 5589, "Proximity Display and Display Cancellation Method at Bus Stop".

FIG. 6 is a diagram showing a wireless transmission / reception sequence in the conventional "method of approaching display and canceling display at a bus stop". In the approach display and display canceling method at the bus stop, as shown in FIG. 6A, the communication channel ch1 set in the radio base station of the bus stop,
The communication channel ch1 is separated from the communication channel ch2 separated by a predetermined frequency at a fixed time interval, for example, 0.5.
Switching at intervals of a second, a call signal is transmitted to a wireless mobile station mounted on a route bus.

A wireless mobile station mounted on a route bus is shown in FIG.
(B) As shown in (c) and (d), a response is made only when a paging radio wave (frame) is received from one of two communication channels from the radio base station at the bus stop. The operation status related to the route bus approaching this bus stop is displayed on the board of the radio base station. The operation status is, for example, a route bus operating system related to a route bus approaching a bus stop, a destination, a scheduled passing time, an actual passing time, a number of the next scheduled passing time, and characters indicating whether or not the last bus has passed. The light emitting diode (LE
D) is lit and displayed.

[0008] In this "method of displaying and canceling approach at a bus stop", the operation status of a route bus when approaching the bus stop is displayed on a board, and when the route bus leaves the bus stop, the accurate information is displayed. Stop (cancellation of display) may not be possible. For example, when a plurality of route buses of the same operation system approach (arriv) at the same bus stop at the same time due to traffic congestion or the like, the first route bus arrives and starts displaying the operation status on the board. However, even if the route bus leaves the bus stop and the transmission sequence for stopping the display of the operation status is executed, the display of the operation status on the board due to the approach of the subsequent route bus starts. Therefore, when many route buses approach one bus stop at the same time, it may not be possible to accurately stop the display of the operation status.

[0009]

As described above, in the above conventional example, when many route buses approach one bus stop at the same time, it may not be possible to accurately stop the display of the operation status. There is a disadvantage that there is room for improvement in the reliability of the operation display.

[0010] The present invention is to solve such problems in the prior art, and displays the operation status when a plurality of, for example, route buses simultaneously approach the same bus stop, and The purpose of the present invention is to provide a radio-based vehicle operation display system that can accurately and reliably stop the operation status display when a route bus leaves a bus stop and improve the reliability of the notification of the route bus operation status. And

[0011]

In order to achieve the above object, in a wireless vehicle operation display system according to the present invention, a wireless base station is stored in route vehicle information received from a vehicle wireless mobile station of a vehicle. Instruct the display of the operation status related to the vehicle approaching the stop location radio base station at the stop location, and
After the operation status is displayed at the stop location radio base station, the display of the current operation status is stopped when an approach display stop command is received from the vehicle radio mobile station.

[0012] Further, in the wireless vehicle operation display system of the present invention, the vehicle is a route bus, the stop location is a bus stop, the wireless base station sets the route bus operation area as a service area, and The vehicle radio mobile station is a route bus radio mobile station of a route bus, the stop radio base station is a bus stop radio base station, and the radio base station is located on a plurality of running route buses existing in the entire operation system. For the route bus radio mobile station, wireless polling control for sequentially collecting additional route bus position information is executed, and the bus stop radio of the stop identification code stored in the route bus information received from the route bus radio mobile station is executed. For the base station,
It is configured to transmit approach display command information for instructing display of an operation status related to an approaching route bus.

Further, the route bus radio mobile station transmits additional route bus position information obtained by adding a route bus identification code to predetermined bus stop information in the operation system in response to radio polling control from the radio base station. In addition, after the route bus on which the route bus wireless mobile station is mounted leaves the bus stop, synchronization is established with the bus stop wireless base station and the approach display stop command information is transmitted.

Further, the bus stop radio base station receives approach display command information from the radio base station when the route bus on which the route bus radio mobile station is mounted approaches, and identifies the stop identification code in the approach display command information. In comparison with the unique identification code of each bus stop radio base station, when matched, displays the operation status related to the route bus approaching the bus stop, and establishes synchronization with the route bus radio mobile station, When the approach display stop command information is received, the display of the current operation status is stopped.

Further, in the wireless vehicle operation display system of the present invention, as a wireless base station, a wireless receiving unit for receiving additional route bus position information from a route bus wireless mobile station, and a wireless polling control executed and received. A base station control section for controlling transmission of approach display command information to the bus stop radio base station stored in the additional route bus position information from the radio receiving section; and a bus stop radio for approach display command information from the base station control section. And a wireless transmission unit for transmitting to the base station.

Further, as a route bus radio mobile station, an on-board device for controlling transmission of additional route bus position information, a route identification code corresponding to the operating system stored in the on-vehicle device in advance, and a route including operating system information. Bus position information, a frequency code, and an in-bus device that sends approaching display stop command information, and route bus position information from the in-bus device for wireless polling control from a wireless base station under the control of the in-vehicle device Establishes synchronization with the wireless transmission / reception unit that transmits the additional route bus position information to which the own route bus identification code is added to the wireless base station, and the synchronization bit data transmitted from the bus stop wireless base station based on the frequency code from the vehicle-mounted device And a radio control unit for controlling transmission of approach display stop command information when the own route bus leaves the bus stop and leaves, and control of the radio control unit Receiving a synchronization bit data sent from the bus stop radio base station, and is configured to include a radio unit that transmits the approach display stop instruction information.

Further, as a bus stop radio base station, a radio receiving section for receiving approach display command information from the radio base station and a route bus approaching the bus stop based on the approach display command information from the radio receiving section. A display unit for displaying the related operation status and informing the user of the operation status, and the approach display instruction information based on the stop identification code and the radio frequency code given to each bus stop radio base station in the operation system. A bus stop radio base station controller for controlling the display unit to display the operation status when the route bus approaches the own bus stop corresponding to the operation system information, and a route bus radio mobile station through a plurality of communication channels. A configuration including a wireless control unit that controls transmission and reception, and a wireless unit that performs wireless transmission and reception with a route bus wireless mobile station using a plurality of communication channels under the control of the wireless control unit Are you.

Further, the wireless vehicle operation display system of the present invention performs wireless transmission and reception between a vehicle radio mobile station and a stop location radio base station by using a plurality of radio transmissions between the vehicle radio mobile station and the stop location radio base station. And a transmission sequence of a time-division multiplexing connection method in which a synchronization time slot for establishing synchronization and a plurality of sub-time slots are selected by carrier sense.
Also, a wireless transmission sequence in a wireless circuit connection by the time division multiplex connection method is executed by transmission and reception by a specific low-power wireless device. Further, the additional route bus position information, at least a bus stop identification code for each bus stop,
The configuration is such that information is added to a communication channel and an operation system to a self-route bus identification code set in advance to identify each route bus wireless mobile station mounted on the route bus.

Further, the wireless vehicle operation display system according to the present invention provides a route bus operation system, a destination, a scheduled passage time, an actual passage time,
Any, a combination, or all of the numbers, characters, and symbols at the next scheduled passage time and the presence or absence of the last bus passing are lit and displayed, or the synthesized voice is notified.
Further, as a device in the bus of the route bus radio mobile station, the route identification information of each bus stop, the route bus position information of the communication channel and the operation system information are stored on a magnetic tape or a ROM cartridge, and the route bus position information is stored. It is configured to use a manual voice guidance device that performs transmission by a manual operation, or use an automatic voice guidance device that transmits by detecting opening / closing of a via associated with getting on / off a route bus.

Further, the wireless vehicle operation display system of the present invention is used for displaying a cyclic delivery operation in which a large number of warehouses in an operation system in which a lorry vehicle is defined are regularly operated and circulated.

In the wireless vehicle operation display system according to the invention having the above-described structure, the stop position (stop position wireless base station) stored in the route vehicle information received from the vehicle wireless mobile station by the wireless base station by the wireless polling control. Instruct the display of the operation status related to the route bus approaching. Then, when an approach display stop command is received from the vehicle radio mobile station after the display of the operation status at the stop location radio base station, the display of the current operation status is stopped.

Thus, when a plurality of, for example, route buses simultaneously approach the same bus stop, the operation status of the subsequent route bus is displayed in the same manner as in the case of the first route bus. The display stop of the current operation status displayed by the approach display stop command from the last route bus is forcibly performed. Therefore, it is possible to accurately and reliably stop displaying the operation status at the bus stop when a plurality of route buses approach the same bus stop at the same time, and thereafter the route bus departs from the bus stop and leaves. Thus, the reliability of the display of the operation status of the route bus by the user is improved.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration in an embodiment of a wireless vehicle operation display system according to the present invention. The wireless vehicle operation display system includes a route bus wireless mobile station 1 mounted on a route bus that performs a scheduled operation that sequentially departs and arrives at a plurality of bus stops for each operation system at a predetermined time, and a route bus wireless mobile station. A radio base station 2 that communicates with a traveling route radio mobile station 1 using a route bus operation area as a radio service area and a bus stop that is installed at a bus stop and displays the operation status to users. It has wireless base stations 3-1, 3-2 and 3-3.

The route bus radio mobile station 1 is mainly mounted on a one-man bus. In such a one-man bus, the route bus operates while stopping at a number of bus stops in an operation system. In this case, when approaching the bus stop, the driver operates a switch on the operation panel to operate the voice guidance device, and guides the speaker to output the name of the bus stop to be stopped next from the speaker. At the same time as this guidance, the name of the bus stop to be stopped next is displayed on the light emitting diode panel or the like. Further, a change display of the fare to the bus stop which stops this time is displayed.

It is to be noted that the voice guidance provided by the voice guidance device on such a one-man bus includes a completely manual type in which a driver operates a switch on an operation panel as the driver approaches each bus stop, and a stop at the bus stop. When a person gets on and off, in other words, when the door is opened and closed, the voice guidance device automatically guides the name of the next bus stop during subsequent traveling, and There is a semi-automatic type in which when a driver passes through a bus stop as it is without getting on and off the bus, the driver operates a switch on the operation panel to output the name of the bus stop to be stopped next from the speaker as a voice.

The route bus equipped with the route bus radio mobile station 1 has a large number of route buses on the operation system, that is, the route buses arrive and leave the bus stop at short time intervals such as in a city. In the case where there is one route bus, for example, in the case where there is one route bus on the operation system as in the case of a rural area, that is, the route stops at a bus stop at a long time interval (for example, only one route bus returns in the morning and afternoon). Buses may depart and arrive. Hereinafter, a description will be given assuming that a route bus arrives and departs at a bus stop at a short time interval such as a city, and a plurality of route buses of the same operation system simultaneously arrive and depart the same bus stop due to traffic congestion or the like.

The route bus radio mobile station 1 shown in FIG. 1 includes predetermined bus stop information (stop identification code (ID) for each bus stop) in the operation system, the operation system, and
The own route bus identification code (I) assigned (set) in advance to identify the frequency code (communication channel) and the route bus
D) and transmits the additional route bus position information to the wireless base station 2 in response to the wireless polling control from the wireless base station 2. After the route bus on which the route bus wireless mobile station 1 is mounted leaves the bus stop, the approach display stop command information is transmitted by a switch operation of the driver. That is,
The approach display stop command information is transmitted completely manually in the above description. The transmission of the approach display stop command information may be transmitted by the semi-automatic method described above. Hereinafter, a fully manual method will be described.

The radio base station 2 sequentially receives the additional route bus position information for a large number of running route buses (route bus wireless mobile stations 1) existing in the whole area (wireless service area) of the operating system. Execute the wireless polling control for collecting the collected data. Further, the radio base station 2 informs the bus stop of the stop identification code stored in the route bus information received from the route bus radio mobile station 1, that is, the name of the bus stop that stops next in the route bus. The approach display command information for instructing the bus stop at the time of the announcement (announcement) to display the operation status at the time of approach is transmitted.

The bus stop radio base stations 3-1 to 3-3 are:
A unique identification code (ID) is set in advance for each. The approach display command information of the route bus (route bus wireless mobile station 1) from the wireless base station 2 is received. When the stop identification code in the received approach display command information is compared with the unique identification code of each of the bus stop radio base stations 3-1 to 3-3, when they match, the bus stop radio base stations 3-1 to 3-3. Displays on the board the operation status related to the route bus based on the route bus identification code. In addition, the bus stop radio base station 3-
In 1-3 to 3-3, the display of the current operation status is stopped by the approach display stop command information from the route bus wireless mobile station 1, and
Transmission of synchronization bit data for communication with the route bus radio mobile station 1 is performed.

As a radio transmission sequence between the route bus radio mobile station 1 and the bus stop radio base stations 3-1 to 3-3, the RCR relating to a specific low-power radio without a license is used here.
-Time division multiplexed access (TDMA) of STD-16A standard
The method will be described. In the TDMA system, as will be described in detail with reference to FIG. 5 below, one frame is composed of a synchronization bit time slot (synchronization bit TS), a sub-time slot (sub-TS) as a plurality of communication channels, and the like. Note that any communication method may be adopted as long as a plurality of route buses select a large number of communication channels and execute a wireless transmission sequence.

FIG. 2 is a block diagram showing a detailed configuration of the route bus radio mobile station 1 in FIG. The route bus wireless mobile station 1 includes an in-vehicle device 1a for controlling transmission of additional route bus position information in which a self route bus identification code is added to a stop identification code, a frequency code (communication channel) and operating system information, and a pre-stored device. Route bus position information such as the stop identification code corresponding to the operating system
The in-bus device 1b for transmitting the frequency code of the specific low power radio and the approach display stop command information to the in-vehicle device 1a by the driver's switch operation, and the wireless polling control from the radio base station 2 under the control of the in-vehicle device 1a The additional route bus position information obtained by adding the own route bus identification code to the route bus position information from the in-bus device 1b is transmitted to the antenna Ant1.
and a wireless transmission / reception unit 1c for transmitting to the wireless base station 2 through a.

Further, the route bus radio mobile station 1 synchronizes with the synchronization bit data transmitted from the bus stop radio base stations 3-1 to 3-3 with a frequency code based on the route bus position information from the on-board device 1a. And a specific low-power wireless control unit 1e for controlling the transmission of the above-described near display stop command information when the vehicle departs from the bus stop and leaves, and a bus controlled by the specific low-power wireless control unit 1e. It has a specific low-power radio unit 1d that receives synchronization bit data with the stop radio base stations 3-1 to 3-3 via the antenna Ant1b and transmits approach display stop command information.

FIG. 3 is a block diagram showing a detailed configuration of the radio base station 2 in FIG. The wireless base station 2 receives the additional route bus position information from the route bus wireless mobile station 1 through the antenna Ant2a.
a, a base station control unit 2b for performing control to send approach display command information to the bus stop radio base station 3-1 indicated by the additional route bus position information from the radio reception unit 2a, and a base station control unit 2b the approach display command information from the antenna An
and a wireless transmission unit 2c for transmitting to the bus stop wireless base stations 3-1 to 3-3 through t2b.

FIG. 4 shows a bus stop radio base station 3 in FIG.
It is a block diagram which shows the detailed structure of 1-3-3. These bus stop radio base stations 3-1 to 3-3 are radio base stations 2
A wireless receiver 3a for receiving approach display command information from
Based on the approach display command information from here, the route bus operating system, destination, scheduled transit time, actual transit time, next transit time, and the operation status of the last bus pass will be displayed on the board and notified to the user. And a display unit 3b for performing the operation.

The bus stop radio base stations 3-1 to 3-
Reference numeral 3 denotes a self-bus stop (self-bus stop radio base station 3-1) corresponding to the operation system information included in the approach display command information based on a unique stop identification code and a frequency code (communication channel) in the specific low-power radio. ３−3-3) a bus stop radio base station control unit 3c for performing control to display an operation status related to a route bus approaching the board on a board;
A specific low-power radio control unit 3e for controlling transmission / reception to / from the route bus radio mobile station 1 through a plurality of sub-TSs, a synchronization bit TS under control of the specific low-power radio control unit 3e, A plurality of sub-TSs include a route bus wireless mobile station 1 and a specific low-power wireless unit 3d that performs wireless transmission and reception through an antenna Ant3ba.

Next, the operation of this embodiment will be described. First, the overall operation based on FIG. 1 will be described.
Here, a case will be described where three route buses equipped with the route bus wireless mobile station 1 simultaneously and continuously approach the bus stop provided with the bus stop wireless base station 3-1. Note that the same applies to a case where a plurality of route buses including the route bus wireless mobile station 1 simultaneously (continuously) approach the bus stops provided with the other bus stop wireless base stations 3-2 and 3-3, respectively. Operate.

The route bus radio mobile station 1 has a stop route identification code (ID), an operating system, a frequency code (communication channel), and a self route bus identification code previously assigned (set) to identify the route bus. (ID) is transmitted to the wireless base station 2 in response to the wireless polling control from the wireless base station 2, and the driver operates the switch after leaving the bus stop. The approach display stop command information is transmitted to the bus stop radio base station 3-1.

The radio base station 2 sequentially transmits the additional route bus position information to a number of running route buses (route bus radio mobile stations 1) existing in the entire area (wireless service area) of the operating system. Execute the wireless polling control to be collected. Through this wireless polling control, additional route bus position information from a number of route buses (route bus wireless mobile station 1) of the operation system is received via the antenna Ant2a. From the received additional route bus position information, the station identification code (ID), the route bus identification code (ID), and the operation system information are extracted.

Then, the radio base station 2 sends approach display command information including the stop identification code (ID) and the route bus identification code (ID) to the route buses on all the operation systems, and transmits the information to the bus stop radio base stations 3-1 to 3-1. Broadcast to 3-3. When the bus stop radio base station 3-1 wirelessly receives the approach display command information (sub-TS) of the route bus (route bus radio mobile station 1) from the radio base station 2, the stop identification code of the approach display command information (sub-TS) is received. ID) and the unique identification code (ID) set in the own bus stop radio base station 3-1. Based on the comparison, the own bus stop (bus stop radio base station 3-) is compared.
When the route bus (route bus wireless mobile station 1) approaches 1), the operation status related to the route bus is displayed.

The route bus radio mobile station 1 operating as described above
And between the bus stop radio base stations 3-1 to 3-3
The transmission sequence of the TCR system of the RCR-STD-16A standard relating to the specified low power radio is executed, and the bus stop radio base station 3-1 uses the first time slot (TS) in one frame for establishing synchronization. Then, the data of the synchronization bit example is transmitted. The route bus radio mobile station 1 receiving the synchronization bit data establishes synchronization with the bus stop radio base station 3-1 based on the synchronization bit. Then, the carrier sense for the wireless line connection in the continuous sub-TS following the synchronization bit TS is repeatedly executed, and it is determined that the sub-TS is in use and selected.

Communication is performed between the bus stop radio base station 3-1 and the route bus radio mobile station 1 through the unused sub-TSs confirmed by the carry, and the route bus is operated by the driver's switch operation. The approach display stop command information is transmitted from the wireless mobile station 1 to the bus stop wireless base station 3-1. The bus stop radio base station 3-1 that has received the approach display stop command information stops displaying the operation status of the route bus radio mobile station 1 currently displayed on the board at the time of approach.

Here, when a plurality of route buses (route bus radio mobile station 1) approach the same bus stop (bus stop radio base station 3-1) at the same time, the subsequent route bus will also be the first route bus (route bus). The operation is the same as in the case of the wireless mobile station 1). Therefore, the guidance at the time of approaching the bus stop in the vehicle is performed in all of the plurality of route buses, and the display of the operation status at the bus stop (bus stop wireless base station 3-1) is continued. Here, the bus stop radio base station 3-1 which has received the approach display stop command information from the last route bus displays the operation status of the route bus radio mobile station 1 on the board at the time of approach, which has been displayed on the board until now. Force stop. That is, even when a plurality of route buses approach the same bus stop at the same time and the plurality of route buses subsequently leave the bus stop, accurate display stop of the operation status at the bus stop is performed.

Next, the operation of the route bus radio mobile station 1, the radio base station 2, and the bus stop radio base station 3-1 in FIG. 1 will be described in detail. FIG. 5 is a wireless transmission / reception sequence diagram of the configuration shown in FIG. 1 to 5, first,
As shown in FIG. 5A, the bus stop radio base station 3-1 includes a bus stop radio base station control unit 3c, a specific low power radio control unit 3e, a specific low power radio unit 3d, and an antenna Ant3.
Through d, the synchronization bit data in the synchronization bit TS is repeated for each frame and transmitted to the route bus (route bus wireless mobile station 1) approaching this bus stop.

The specified low-power radio section 1d of the route bus radio mobile station 1 (a) shown in FIG. 5 (a) which approaches the bus stop radio base station 3-1 as shown in FIG.
The signal is received through nt1b and transmitted to the specified low power wireless control unit 1e. In this specific low power radio control unit 1e, the TDM
Synchronization with the bus stop radio base station 3-1 is established based on the transmission sequence according to the A method. Next, a plurality of sub-TSs shown in FIG.
Of the sub-TSs (1), (2), and (3) in the frequency code (communication channel). The specified low-power radio section 3d of the bus stop radio base station 3-1 through the unused sub-TS (1) confirmed by this carrier.
And the specified low-power radio section 1d of the route bus radio mobile station 1 establish a radio line connection through the respective antennas Ant3b and 1b.

In this carrier sense, it is general to select an unused frequency code (communication channel) having the minimum received electric field strength from an intermediate frequency signal obtained by frequency-converting the received signal, that is, not detecting a carrier. , Carrier / noise (C / N
Communication ratio), a communication channel having a high signal / noise (S / N) ratio, a communication channel having a low data transmission error rate by the CRC method, or a communication having a maximum reception electric field strength in transmission from the other party. Channel selection may be performed.

In the route bus radio mobile station 1, the on-vehicle device 1a transmits route bus position information (stop identification code, specific low power radio frequency code and operating system information) from the in-bus device 1b by a driver's switch operation. Is transmitted. The in-bus device 1b transmits the stored route bus position information to the next bus stop after passing through the bus stop by a driver's switch operation (announcement),
Alternatively, when the name of the next bus stop is displayed on the boat in the vehicle, the name is transmitted to the in-vehicle device 1a. Under the control of the in-vehicle device 1a, when responding to the wireless polling control from the wireless base station 2, the own route bus identification code is changed to the in-bus device 1.
The additional route bus position information added to the route bus position information from b is transmitted to the wireless base station 2 through the wireless transmitting / receiving unit 1c and the antenna Ant1a.

Further, in the route bus radio mobile station 1, the specific low-power radio control unit 1e controls the specific low-power radio unit 1d, and uses the frequency code based on the additional route bus position information from the on-vehicle device 1a. As described with reference to FIG. 5A, the synchronization bit data transmitted from the bus stop radio base station 3-1 is received through the antenna Ant1b.
The synchronization with the bus stop radio base station 3-1 is established.

In the radio base station 2, the radio reception unit 2a receives the additional route bus position information from the route bus radio mobile station 1 through the antenna Ant2a by the radio polling control. The base station control unit 2b controls to transmit the approach display command information to the bus stop wireless base station 3-1 included in the received additional route bus position information via the wireless transmission unit 2c. The approach display command information from the wireless base station 2 is received by all of the bus stop wireless base stations 3-1 to 3-3.

The bus stop radio base station 3-1 performs transmission / reception through the synchronous bit TS of the frequency code based on the TDMA transmission sequence of the specific low power radio control unit 3e and a plurality of sub-TSs. The radio receiving unit 3a receives the approach display command information from the radio base station 2, and the bus stop radio base station control unit 3c sends the approach display command information based on the unique identification code and the frequency code set beforehand. Bus stop radio base station 3 corresponding to the operation system information included in
The operation status when the route bus approaches -1 (bus stop) is displayed by lighting a light emitting diode provided on the board of the display unit 3b.

In the display on the board of the display unit 3b, the route bus operating system, the destination, the scheduled passing time, the actual passing time, the next scheduled passing time, and the presence / absence of the last bus passing are displayed on the board for the user. It reports the operation status. After this display, the route bus radio mobile station 1 sets the specific low power radio control unit 1e.
Controls the specific low power radio unit 1d. By this control, the approach display stop command information when the driver operates a switch (not shown) of the in-bus device 1b is transmitted to the specified low-power wireless unit 1d.
And, it transmits to the bus stop radio base station 3-1 through the antenna Ant1b.

Here, as shown in FIGS. 5B and 5C, when the route bus radio mobile station 1 (b) (c) simultaneously approaches the same bus stop (bus stop radio base station 3-1). The route bus radio mobile station 1 shown in FIG.
By the same TDMA transmission sequence as in (a), the route bus radio mobile station 1 (b) (c) establishes synchronization with the bus stop radio base station 3-1 and executes carrier sense. Further, the route bus wireless mobile station 1 (b) establishes a wireless communication line connection with the sub-TS (2), and the route bus wireless mobile station 1 (c) establishes a wireless communication line connection with the sub-TS (3). Do. In FIG. 5, the route bus wireless mobile stations 1 (a), (b), and (c) are connected to the wireless lines in the order of the sub-TSs (1), (2), and (3). To establish a wireless line connection in any of the vacant sub-TSs.

As a result, the route bus (route bus radio mobile station 1) approaching the bus stop first leaves the bus stop and stops displaying the operation status on the display unit 3b of the bus stop radio base station 3-1. Later, even if the display of the operation status on the board due to the arrival of the next route bus is started, the display unit 3b of the bus stop radio base station 3-1 receives the approach display stop command information transmitted from the last route bus. The display of the current operation status stops forcibly. That is, when a plurality of route buses simultaneously approach the same bus stop, it is possible to accurately stop the display of the operation status, and to notify the user of the accurate operation status.

Next, the main part of the wireless vehicle operation display system shown in FIGS. 1 to 5 will be described more specifically.
As the in-bus device 1b in the route bus radio mobile station 1,
A general-purpose bus voice guidance device that stores route bus position information (stop identification code (ID) information, frequency code of specific low-power radio, and operating system information) in a magnetic tape or a ROM cartridge is used. A specific low-power radio control unit 1e and a specific low-power radio unit 1d in the route bus radio mobile station 1;
The specific low-power radio control unit 3e and the specific low-power radio unit 3d in the bus stop radio base station 3-1 are specific low-power radios (specific low-power Transceiver).

Display unit 3b of the bus stop radio base station 3-1
Is the route bus operation system, destination, scheduled passage time, actual passage time, the number of the next scheduled passage time, and
The presence or absence of passing through the last bus is written in characters, and a lamp or a light emitting diode is provided at each position. By turning on the lamp or the light emitting diode, for example, the scheduled passing time “18:15” and the actual passing time “18: 18 and the next scheduled time “18:35” and the letters “passed / not passed” indicating whether or not the last bus has passed are lit, and the operation status is displayed.

In this embodiment, an example has been described in which the operation status of the board of the display unit 3b is lit and displayed, but it is also possible to notify by a synthetic voice. In this case, a synthetic voice conversion output device and a speaker are provided in the bus stop radio base stations 3-1 to 3-3, and a route bus operation system,
A route bus (route bus radio mobile station) to a bus stop (bus stop radio base stations 3-1 to 3-3) together with a destination, a scheduled pass time, an actual pass time, a next pass time, and whether or not the last bus has passed. The user is notified of the approach or separation of 1) by a synthetic voice. This notification is optimally configured to operate by this detection when a person approaches a bus stop without continuously outputting a sound.

Further, in this embodiment, the description has been given of the wireless vehicle operation display system of the route bus, but the present invention is not limited to the route bus. For example, the present invention is also applicable to a circulating delivery operation display system in which vehicles, such as lorries, circulate in a predetermined number of warehouses by regular operation. In this case, the content corresponding to the operation status corresponding to the cyclic delivery operation management is displayed on the board of the display unit 3b.

Furthermore, in this embodiment, an example using a specific low-power radio has been described. A wireless device that executes the same wireless transmission sequence as the low power wireless device may be used. In this case, when approaching or leaving a bus stop at an extremely high speed, such as a route bus on a highway, the above-described wireless transmission sequence between the bus stop and a route bus far away is executed with an appropriate electric field strength. (Send and receive).

[0058]

As is clear from the above description, according to the wireless vehicle operation display system of the present invention, the operation status related to the route bus approaching the stop location (stop location wireless base station) is displayed. In addition, after displaying the operation status at the stop location radio base station when the vehicle (vehicle radio mobile station) leaves the stop location, the current operation status is displayed by receiving the approach display stop command from the vehicle radio mobile station. Has stopped.

Thus, when a plurality of, for example, route buses approach the same bus stop at the same time, the operation status of the subsequent route bus is displayed in the same manner as the first route bus. The display stop of the current operation status displayed by the approach display stop command from the last route bus is forcibly performed. Therefore, when the route bus departs from the bus stop and leaves, the operation status display at the bus stop can be stopped accurately and reliably, and the reliability of the display of the route bus operation status by the user can be improved. Is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless vehicle operation display system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a detailed configuration of a route bus radio mobile station in FIG.

FIG. 3 is a block diagram illustrating a detailed configuration of a wireless base station in FIG. 1;

FIG. 4 is a block diagram showing a detailed configuration of a bus stop radio base station in FIG. 1;

FIG. 5 is a wireless transmission / reception sequence diagram in the operation of the embodiment.

FIG. 6 is a diagram showing a wireless transmission / reception sequence in a conventional approach display and display cancellation method at a bus stop.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 route bus radio mobile station 1a on-vehicle device 1b in-bus device 1c radio transmission / reception unit 1e, 3e specific low power radio control unit 1d, 3d specific low power radio unit 2 radio base station 2a, 3a radio reception unit 2b base station control unit 2c Radio transmission unit 3-1 to 3-3 Bus stop radio base station 3b Display unit 3c Bus stop radio base station control unit

Claims (15)

[Claims] 1. A wireless vehicle operation display system for displaying the operation status of a vehicle at a stop location when a vehicle that performs regular operation in an operation system approaches a stop location, wherein the wireless base station includes a vehicle wireless communication system for the vehicle. To the stop location wireless base station of the stop location stored in the route vehicle information received from the mobile station, instruct the display of the operation status of the approaching vehicle, and after displaying the operation status at the stop location wireless base station And a display of the current operation status is stopped when an approach display stop command is received from the vehicle radio mobile station. 2. The vehicle is a route bus, the stop location is a bus stop, the radio base station is a service area in a route bus operation area, and the vehicle radio mobile station is a route bus radio mobile station. And, the stop radio base station is a bus stop radio base station, the radio base station, for the route bus radio mobile station of a plurality of running route buses present in the entire area of the operating system,
Sequentially, wireless polling control for collecting additional route bus position information is executed, and approaching the bus stop radio base station of the stop identification code stored in the route bus information received from the route bus radio mobile station. The wireless vehicle operation display system according to claim 1, wherein the display system transmits the approach display instruction information for instructing the display of the operation status related to the route bus. 3. The vehicle is a route bus, the stop is a bus stop, the radio base station is a service area in a route bus operation area, and the vehicle radio mobile station is a route bus radio mobile station. And, the stop radio base station is a bus stop radio base station, the route bus radio mobile station, the additional route bus position information obtained by adding a route bus identification code to predetermined bus stop information in the operating system, Transmits in response to the radio polling control from the radio base station, and establishes synchronization with the bus stop radio base station after the route bus on which the route bus radio mobile station is mounted leaves the bus stop, and stops the approach display stop command. The wireless system operation display system according to claim 1, wherein information is transmitted. 4. The vehicle is a route bus, the stop is a bus stop, the radio base station is a service area in a route bus operation area, and the vehicle radio mobile station is a route bus radio mobile station. Along with that, the stop radio base station is a bus stop radio base station, and the bus stop radio base station transmits approach display command information when a route bus equipped with a route bus radio mobile station from the radio base station approaches. Receiving, displaying the operation status related to the route bus approaching the bus stop when the stop identification code in the approach display command information is compared with the unique identification code of each bus stop radio base station, and 2. The wireless vehicle according to claim 1, wherein the display of the current operation status is stopped when the approach to the route bus wireless mobile station is established and the approach display stop command information is received. Navigation display system. 5. A wireless receiving unit for receiving additional route bus position information from a route bus wireless mobile station as the wireless base station, and additional route bus position information from the wireless receiving unit received by executing wireless polling control. A base station control unit that performs control to send approach display command information to the bus stop radio base station stored in the radio communication unit, and a radio transmission unit that transmits approach display command information from the base station control unit to the bus stop radio base station. The wireless vehicle operation display system according to claim 2, comprising: 6. The in-vehicle device for controlling transmission of additional route bus position information as the route bus wireless mobile station, and a stop identification code and service system information corresponding to a service system stored in the in-vehicle device in advance. Including route bus location information,
And a frequency code, and an in-bus device for transmitting approach display stop command information; and a route polling control from a radio base station under the control of the in-vehicle device; A radio transmitting / receiving unit that transmits the additional route bus position information to which the bus identification code is added to the radio base station, and establishes synchronization with the synchronization bit data transmitted from the bus stop radio base station based on the frequency code from the in-vehicle device. And, a wireless control unit that performs control to transmit the approach display stop command information when the own route bus departs from the bus stop and leaves, synchronization transmitted from the bus stop wireless base station under the control of the wireless control unit The wireless vehicle operation display system according to claim 3, further comprising: a wireless unit that receives bit data and transmits approach display stop instruction information. 7. A radio receiving unit for receiving approach display command information from a radio base station as the bus stop radio base station, and a route approaching the bus stop based on the approach display command information from the radio receiving unit. A display unit for displaying the operation status related to the bus and informing the user of the operation, and an approach display command information based on the stop identification code and the radio frequency code assigned to each bus stop radio base station in the operation system. A bus stop radio base station control unit for controlling the display unit to display an operation status related to a route bus approaching the own bus stop corresponding to the included operation system information; and a route bus wireless movement through a plurality of communication channels. A wireless control unit that controls transmission and reception to and from a station; and a wireless communication unit that performs wireless transmission and reception to and from a route bus wireless mobile station through a plurality of communication channels under the control of the wireless control unit. Radio system vehicle operation display system according to claim 4, characterized in that it comprises a part, a. 8. The wireless transmission / reception between the vehicle radio mobile station and the stop location radio base station establishes a plurality of communication channels and synchronization between the vehicle radio mobile station and the stop location radio base station. 2. The wireless system operation display system according to claim 1, wherein the system is executed in a transmission sequence of a time division multiplexing connection system selected from a plurality of sub time slots by a synchronization time slot and a carrier sense. 9. The wireless vehicle operation according to claim 8, wherein the wireless transmission sequence in the wireless circuit connection by the time division multiplex connection method is executed by transmission and reception by a specific low power wireless device. Display system. 10. The additional route bus position information includes at least a stop identification code, a communication channel, and an operation system for each bus stop, a self-route set in advance for identifying each route bus wireless mobile station mounted on the route bus. 4. The wireless vehicle operation display system according to claim 2, wherein the information is information to which a bus identification code is added. 11. The display of the operation status related to the vehicle includes a route bus operation system, a destination, a scheduled passage time, an actual passage time, a next passage time, and a number, a character, and a symbol in the presence or absence of the last bus passage. 2. The wireless vehicle operation display system according to claim 1, wherein any one, a combination, or all of them is lit and displayed. 12. As a display of an operation status related to the vehicle, a route bus operating system, a destination, a scheduled passage time, an actual passage time, a next passage time, and the presence / absence of the last bus passage are notified by a synthetic voice. The wireless vehicle operation display system according to claim 1, wherein: 13. A device in the bus of the route bus radio mobile station, the route bus position information of the bus stop identification code, the communication channel and the operation system information for each bus stop, is recorded on a magnetic tape or RO.
7. The wireless vehicle operation display system according to claim 6, wherein a manual voice guidance device that stores the route bus position information by manual operation is stored in an M cartridge. 14. A device in the bus of the route bus radio mobile station, the route bus position information of the bus stop identification code, the communication channel and the operation system information for each bus stop, is recorded on a magnetic tape or RO.
5. The wireless vehicle operation display system according to claim 4, wherein an automatic voice guidance device is used which stores the information on the route bus position in the M cartridge and detects the opening / closing of a bus accompanying the getting on / off of the route bus. . 15. The wireless vehicle operation display system according to claim 1, which is used for a cyclic delivery operation display in which a number of warehouses of an operation system in which a freight self-vehicle is set are periodically operated and circulated. Wireless vehicle operation display system.