JP2005053308A - Information device for vehicle, and information transmitting method for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the problem that a method by radio employed when an information device for a vehicle such as a next station displaying device is attached by modifying an already vehicle while keeping a large-scale modification such as the addition of wiring to a minimum has adverse effects on train radio, protection radio or guidance radio and so forth. <P>SOLUTION: This information transmitting method for a vehicle is constituted in such a manner that data is transmitted to a first display device outside of a crew chamber through a transmission line from a central device which is provided in the crew chamber, and the data is transmitted by radio from the first display device to second display devices, or between the second display devices. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vehicle information device for displaying a destination of a vehicle and a next station.

  Conventionally, the following vehicle information devices are mounted on trains. That is, as shown in FIG. 5, a central device 31 is provided in the crew cabin 1 of the train, and each vehicle is provided with a plurality of display devices 32 connected to the central device 31. The central device 31 is provided with a setting device (not shown) for setting operation information. Such a vehicle information device is used, for example, for displaying next station data, displaying destination data, and the like. This example shows a bus type connection example. When used as a destination display device, when operation information is given from a setter on the central device 31, input data stored in advance in a storage unit in the central device 31 Is read out and transmitted to the display device 32. On the display device 32 side, the transmitted destination name is displayed by an indicator such as an LED. The reason why the central device 31 is provided in the crew room is to have a function of displaying operation information to the crew and to enable the crew to set the operation information on the spot.

JP 2001-199340 A JP 2002-87266 A

  By the way, if an existing vehicle is remodeled and such an information device for a vehicle is to be attached, the addition of wiring may be a serious work. In particular, if there is no spare line in the jumper line between vehicles, there is a possibility that a large-scale construction such as addition of a coupler will be required.

  On the other hand, it is possible to send data wirelessly from the central unit installed in the crew room to the display device of each vehicle. However, train radio and protective radio are used in the crew room, and guided radio is used for underground vehicles. Have the potential to adversely affect these radios.

  The vehicle information device according to claim 1 is provided in the crew cabin, and is provided with a central device having a function of storing, selecting, and transmitting operation information, and provided outside the crew cabin, and transmitted from the central device via a transmission path. A first display device comprising a display for displaying the transmitted data, a converter for converting the transmitted data into a radio signal, and a radio transmitter for wirelessly transmitting the output of the converter; A wireless transceiver that wirelessly transmits a signal received wirelessly from the display device, a converter that converts the wirelessly received signal into display data, and a second display device group that includes a display that displays the output of the converter. This is the gist.

  The vehicular information device according to claim 2 is the vehicular information device according to claim 1, wherein the operation information is set as next station data, and the central device includes switching means for switching the next station data. And

  The vehicle information transmission method according to claim 3, wherein data transmitted by a central device is transmitted to the first display device via the transmission path, and then received by the first display device. The gist is that the data is converted into a radio signal and transmitted to the second display device by radio.

  According to the present invention, since the data transmitted by the central device is transmitted to the first display device via the transmission path, the existing transmission wiring can be used. Moreover, since it transmits by wire, without transmitting by radio | wireless transmission, it is not necessary to protect the bad influences, such as another train radio | wireless in a crew member's room, a protection radio | wireless, a guidance radio | wireless.

  In addition, since the data received by the first display device is converted into a radio signal and wirelessly transmitted to the second display device, there is no need to use an existing transmission line. Moreover, even if there is no spare line, it can be dealt with. Moreover, since it becomes in-vehicle wireless communication or wireless communication between vehicles, it is not adversely affected by other wireless signals as described above.

  Therefore, when adding a destination display device or next station display device to an existing vehicle, it becomes possible to modify the vehicle without making a significant change in wiring, and it has an adverse effect on train radio, protective radio, induction radio, etc. There is an effect of preventing it from reaching.

  Hereinafter, the details of the present invention will be described with reference to the drawings. FIG. 1 shows an example of the present invention, in which 2 is a central device, 3 is a transmission line such as an electric wire or an optical fiber cable for transmitting data from the central device, 4 is a first display device, and 5 is a first device. Second display device. The same reference numerals as those in FIG. 5 have the same configuration and the same function.

  FIG. 2 shows the configuration of the central device 2 and the configuration of the first display device 4, 6 is a setting device, 7 is a control unit configured by a CPU, 8 is a storage unit configured by a ROM, and 9 is It is a transmission control unit. 10 is a wireless antenna, 11 is a display, 12 is a converter for converting transmitted data so that it can be transmitted wirelessly, and 13 is a wireless transmitter.

  FIG. 3 shows a configuration of the second display device 5, 14 is a wireless transceiver, and 15 is a converter. The same reference numerals as those in FIG. 2 indicate the same configuration and the same function.

  When this device is used as a destination display device, a pair of an operation code and a corresponding destination name code is written in advance in the storage unit 8 as operation information. Now, when the crew member inputs the operation code as an operation information by the setting device 6 in the form of an alphanumeric string or the like, the data of the destination name code corresponding to the input data is read from the storage unit 8 by the action of the control unit 7, and the transmission control unit 9 is transmitted to the first display device 4 via the transmission path 3.

  On the first display device 4 side, the transmitted data is converted into character data such as kanji or hiragana, and the destination name is displayed by an LED or the like. The transmitted data is also input to the converter 12 where it is converted into wireless data and wirelessly transmitted to the second display device 5 via the wireless transmitter 13 and the antenna 10.

  On the second display device 5 side, the data received via the wireless transmitter / receiver 14 is converted by the converter 15, converted to character data such as kanji or hiragana by the display 11, and the destination name is displayed by the LED or the like. Is done. The data received by the receiving unit of the wireless transceiver 14 is sent from the transmitting unit to the second display device 5 of the adjacent vehicle via the antenna 10.

  In this way, wireless transmission is performed up to the last second display device 5. When used as a destination display device, the first display device 4 and the second display device 5 are generally displayed toward the platform side.

  Next, the case where it uses as a next station display apparatus is demonstrated. When used as a next station display device, a central device 21 shown in FIG. 4 is used instead of the central device 2 of FIG.

  The central device 21 has a function of switching to the next stop station information every time it stops at the station. In the figure, 22 is a control unit, and 23 is a switching signal generator for switching the name of the next stop station. The same reference numerals as those in FIG. 2 have the same configuration and the same function.

  The control unit 22 is different from the control unit 7 of FIG. 2 in that a signal from the switching signal generator 23 can be input. As the switching signal generator 23, an AND signal of a signal that the door is opened and closed and a signal that the vehicle has traveled a certain distance is generally used.

  The storage unit 8 is pre-written with operation information and corresponding stop station sequences. For example, in the case of Tokyo commuter express to Odawara, the operation code representing Tokyo commuter express Odawara and the corresponding stop station code such as Shinbashi, Shinagawa, Ofuna, Fujisawa, Chigasaki, Hiratsuka, Kokutsu, Odawara as data in advance It is written in the storage unit.

  When a crew member inputs an operation code from Tokyo to the commuter express Odawara by using the setting device 6, the control unit 21 first reads out code data corresponding to the name of the Shimbashi station from the storage unit 8, and passes through the transmission control unit 9 and the transmission path 3. Transmit to the first display device 4.

  The first display device 4 converts the transmitted data into character data such as kanji, katakana, and romaji, and displays “Shinbashi Station” using an LED or the like. The transmitted code data is also input to the converter 12 where it is converted to wireless data and wirelessly transmitted to the second display device 5 via the wireless transmitter 13 and the antenna 10.

  On the second display device 5 side, the data received via the wireless transceiver 14 is converted by the converter 15 and the display 11 displays “Shinbashi Station”. The data received by the receiving unit of the wireless transceiver 14 is sent from the transmitting unit to the adjacent second display device 5 via the antenna 10. In this way, wireless transmission is performed up to the last second display device 5.

  Next, when the vehicle stops at Shimbashi Station, the switching signal generator 23 outputs, and as a result, the control unit 23 reads the code data corresponding to the next stop station name Shinagawa from the storage unit 8 from the storage unit 8, and transmits the transmission control unit 9, transmission The data is transmitted to the first display device 4 via the path 3. Thereafter, as in the case of Shimbashi Station, the Shinagawa station corresponding code as the next stop station data is sequentially sent to the second display device 5 to display “Shinagawa Station”. Hereinafter, each time the vehicle stops in sequence, the stop station is switched to the next stop station.

  In the above description, the setting device 6 is shown as a part of the central device. However, the setting device 6 is structurally independent from the central device 2 or 21, and an operation code is given by light or radio waves. However, it goes without saying that this is an example of the present invention.

It is a figure which shows the information device for vehicles in this embodiment. It is a figure which shows the structural example of the center apparatus and 1st display apparatus in this embodiment. It is a figure which shows the structural example of the 2nd display apparatus in this embodiment. It is a figure which shows an example of the center apparatus in the case of using this invention as a next station display apparatus. It is a figure which shows the conventional information apparatus for vehicles.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Crew room, 2,21 Central apparatus, 3 Transmission line, 4 1st display apparatus, 5 2nd display apparatus, 6 Setting device, 7,22 Control part, 8 Storage part, 9 Transmission control part, 10 Antenna, 11 Display, 12, 15 Converter, 13 Wireless transmitter, 14 Wireless transceiver, 23 Switching signal generator

Claims (3)

A central device installed in the crew cabin and equipped with functions for storing, selecting and transmitting operation information;
A display device that is provided outside the crew cabin and displays data transmitted from the central unit through a transmission line, a converter that converts the transmitted data into a radio signal, and a radio transmitter that wirelessly transmits the output of the converter A first display device comprising:
A wireless transceiver that is provided outside the crew cabin and wirelessly transmits a signal wirelessly received from the first display device;
A vehicular information device comprising: a converter that converts a wirelessly received signal into display data; and a second display device group that includes a display that displays the output of the converter. 2. The vehicle information apparatus according to claim 1, wherein the operation information is next station data, and the central device includes switching means for switching next station data. Data transmitted by the central device is transmitted to the first display device via the transmission path,
Thereafter, the data received by the first display device is converted into a radio signal and wirelessly transmitted to the second display device.

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