JPH01318195A - Information transmitting equipment - Google Patents

Abstract

PURPOSE:To automatically address respective terminal equipments in the prescribed order corresponding to the array of seats by successively addressing the terminal equipments from the one to which a prescribed signal is sent through a signal feeder. CONSTITUTION:In the case of sending information from a CPU 1 to the terminal equipments 60a, 60b... of respective seats, a power supply signal feeder P is connected from a power supply to respective terminal equipments in series, respective signal feeders P among respective terminal equipments are provided with feeder disconnecting means (relays) 8a, 8b... and when the terminal equipments 60a, 60b... connected to immediately before respective relays are addressed, the disconnection of the feeders is released and the addressed terminal equipment is connected to the succeeding terminal equipment through the feeder. Said operation is repeated and respective terminal equipments are addressed by the connecting order based upon the feeders P. In said constitution, respective terminal equipments can be automatically addressed in the order corresponding to the array of seats and much labor is not required for addressing.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Example G, description of the central control unit G.2 Description of the terminal device G. Address Explanation G at the time of setting, Explanation H Explanation H of other embodiments Effect of the invention A Industrial field of application The present invention provides a means for transmitting images from a central control unit to a terminal device installed at each passenger seat of an aircraft, train, bus, etc. The present invention relates to an information transmission device suitable for use in transmitting signals and the like.

B. Summary of the Invention The present invention provides an information transmission device that transmits information from a central control unit to a plurality of terminal devices provided for each passenger seat of an aircraft, train, bus, etc., in which an information signal is sent to the plurality of terminal devices. Signal supply lines supplying different predetermined signals are connected in series from a signal source to a plurality of terminal devices, and a supply line disconnection means is provided on the signal supply line between each terminal device, and each supply line disconnection means is When the terminal device connected immediately before this disconnection means is addressed, the disconnection of the signal supply line is released and the connection is made. After assigning an address to the terminal device to which the signal is supplied, the operation of releasing the disconnection of the supply line by the supply line disconnection means between the addressed terminal device and the next stage terminal device and connecting it is repeated. Each terminal device is automatically addressed in a predetermined order corresponding to the arrangement of the seats.

C. Prior Art For example, U.S. Pat. No. 4,647,980 discloses providing individual video displays in passenger seats of vehicles such as aircraft. In other words, video displays as terminal devices are individually installed in the passenger seats, and a plurality of video signals are transmitted in parallel to these video displays from a central control unit.On each video display side, one of the signals is Select one to display.

D. Problem to be Solved by the Invention By the way, the video display for each seat is individually assigned an address corresponding to the seat number.
It has been proposed to selectively transmit necessary signals only to desired video displays (terminal devices) by specifying addresses from the central control unit.

In this case, each video display corresponding to each seat is provided with an address signal generator to which a different address is set, and addressing is done based on the address signal obtained from this address signal generator. In recent years, aircraft have tended to become larger, and for example, it is very time-consuming and inconvenient to set addresses in the address signal generator of the video display that corresponds to each seat on an aircraft with more than 50 seats. .

In view of the above, an object of the present invention is to provide an information transmission device of this type in which address setting is automatically performed.

E. Means for Solving the Problems The information transmission device of the present invention, as shown in FIGS. 1 and 4, for example, transmits a plurality of terminal devices (60a ), (60b).

(60c) In the information transmission device in a vehicle that transmits information signals to..., a plurality of terminal devices (60a),
(60b).

(60C) The power signal supply line P that supplies power signals to... is connected from the power supply device (3) to the
a), (60b).

(60c) . . . are connected in series to each # terminal device (60a).

(60b), (60c) . . . Supply line disconnection means (8a), (8b),
(8c)... are provided, and the respective supply line disconnection means (8a>, (8b), (8c)... are connected to the disconnection means (8a), (8b), (8c)...・
・The terminal device connected immediately before (60a>, (60b
), (60c) ---- When the near addressing is performed, the disconnection of the signal supply line P is released and connected, and the plurality of terminal devices (60a), (60b),
(60c) When setting the address of..., after assigning an address to the terminal device to which a predetermined signal is supplied from the power supply (3), the address is assigned to the terminal device to which this addressed terminal device is connected to the next terminal device. The operation of disconnecting and connecting the power supply lines P by the supply line disconnection means between them is repeated, and addressing is performed in the order in which they are connected by the power signal supply lines P.

F. Effect According to the information transmission device of the present invention, addressing is performed in order from the terminal device to which a predetermined signal is supplied via the signal supply line P, so that each address is automatically assigned in a predetermined order corresponding to the seat arrangement. Terminal devices (60a), (60b).

(60C) Addressing is performed.

G. Embodiment Hereinafter, one embodiment of the information transmission device of the present invention will be described with reference to the accompanying drawings.

This example is applied to a transmission device that transmits video signals, audio signals, etc. in an aircraft.

G1 Description of Central Control Unit First, the central control unit will be explained. In Figure 1, (1
) indicates a central control device installed in the crew cabin, etc., and this central control device (1) is connected to four video tape recorders (
(hereinafter referred to as VTR). That is, the first, second and third Vs are loaded with tape cassettes on which movies are recorded.
It is equipped with TRs (11), (12), and (13), and an override VTR (14) loaded with a tape cassette recording instructions on how to put on a life jacket. In this example, each of these VTRs (11) to (14)
uses a reproduction signal that provides a video signal and three channels (three types) of audio signals synchronized with the video signal. As the three-channel audio signal, it is conceivable to obtain, for example, a monaural sound of a trilingual language corresponding to a movie, or to obtain a stereo sound of a monolingual language and a monaural sound of another monolingual language. In addition, still image recording media (CD RO) containing maps, airport guide maps, etc.
A still image transmitter (15) that plays back TV (M, etc.), a TV tuner (16) that receives regular television broadcasts during waiting time at the airport, and a video installed in the cockpit that records takeoff and landing. A camera (17), a microphone (18) for guiding passengers, and control of each device.

A master controller (19) for in-flight management that aggregates data from each terminal device, creates character information to be supplied to each terminal device, etc., and a keyboard (20) connected to this master controller (19) that instructs various operations to be described later. ), and a monitor receiver (21) that is connected to a master controller (19) and displays the total results of the master controller (19). In this example, the master controller (19) has a clock mechanism, and the crew member sets Greenwich Mean Time in this clock function section before the flight. Equipment such as (11) ~ (
21) is connected to the system controller (lO) of this central control bag ffi (1), and the keyboard (20
) in response to operation commands from the master controller (19
) to each V T via the system controller (10)
R (11) to (14), CD ROM drive device (1
5), TV tuner (16) and video camera (17)
), and in response to this control signal, each VTR (11) to (14) supplies a video signal and an audio signal by playback, and a CD ROM drive (15) supplies a still image video signal. is supplied, a television broadcast signal (video signal and audio signal) is supplied from the television tuner (16), and a photographed video signal is supplied from the video camera (17). In this case, CD RO
The M drive device (15) has a CD R that stores map information of countries and major cities around the world as coordinate information.
OM is installed. Additionally, this CD-ROM stores information such as place names in the languages of multiple countries (for example, the six major powers). Furthermore, an audio signal is supplied from the microphone (18). Furthermore, character information is supplied from the master controller (19) to the system controller (IO).

Then, by operating the keyboard (20), the video signal supplied to the system controller (10) and character information sent from the master controller (19), data transmitter (27), etc. are sent to the monitor receiver (21). This can be confirmed by

Further, (22) indicates a printer connected to the master controller (19), and the master controller (19)
The data collected can be printed out and converted into a virtual copy.

In addition, this central control unit (1) can be equipped with seven ROM cards (IJ), and in this example, seven game ROMs each storing a different video game program.
Cartridge (23a), (23b) - (23g)
Attach. And such ROM cartridge (23
The computer program data read from a) to (23g) is supplied to a data transmitter (27), which will be described later.

(24) indicates a floppy disk drive connected to the master controller (19), and data stored in the floppy disk attached to this floppy disk drive (24) is transferred to the master controller (24).
The data is supplied to the system controller (10) via the controller (19), and new data can be stored or stored data can be modified by operating the keyboard (20).

When operating this note (,!) or making corrections, do not use the monitor receiver (
21) so that the data can be confirmed. In this example, a floppy disk storing data such as a meal menu is attached to the drive device (24).

In addition, (25) and (26) indicate audio playback machines each equipped with three compact disc players and three tape playback devices (six in total); these sound playback machines (25) and (26) are system By supplying control signals from the controller (10), six sets of stereo audio signals (i.e., 12 channel audio signals) are simultaneously played back from the six units, and the six sets of reproduced stereo audio signals are transmitted to the CA, which will be described later.
DA encoder (28).

Further, (27) indicates a data transmitter, and by supplying a control signal from the system controller (10),
Data such as a video game program is read from the ROM cartridges (23a) to (23g), and after the read data is subjected to predetermined processing, it is supplied to the CADA encoder (28).

Further, (28) is a CADA encoder used in a conventionally well-known cable digital audio/data transmission system (CADA system). For example, CAD Hashitem is a method that time-division multiplexes multiple digital audio signals and transmits them using the band (6MHz) of one vacant CATV TV channel, allowing music etc. to be transmitted without losing sound quality. This is an extremely efficient transmission system. In this example, the bandwidth of two television channels is used to increase the amount of transmission. CAD
The A encoder (28) is configured with an A/D converter and a shift register, converts a plurality of audio signals into digital signals with the A/D converter, and inputs the signals to predetermined positions of the shift register in parallel. At the same time, the shift register is configured to perform time division multiplexing by serially outputting signals at high speed. Note that not only digital audio but also control data and convenience store program data are multiplexed.

Then, the above-mentioned audio signals and data such as text information such as meal menus, video game programs, etc., which are supplied to the system controller (10), are transferred to this CAD encoder (
28), and outputs this audio signal and data as a time-division multiplexed CADA data signal.

That is, the audio signals supplied to the system controller (10) include, for example, audio signals of 3 channels (12 channels in total) for each VTR synchronized with the video from the VTRs (11) to (14), and Audio player (25)
A total of 26 channels of audio signals, including 6 sets of stereo audio signals (12 channels of audio signals) from and (26), and 1 channel each of audio signals from the television station (16) and microphone (18) are transmitted. be. These 26 channels of audio signals are time-division multiplexed with other character information and data signals obtained by the CADA encoder (28).
It is assumed to be an ADA data signal.

Note that when this transmission device starts up (when the power is turned on),
Audio and video channel allocation information (total number of channels, correspondence between audio channels and video signal channels, etc.) is transmitted by the signal from the master controller (19).
is transmitted as a data signal in the CADA data signal.

This CADA data signal is then supplied to a modulator/demodulator (29), which modulates the signal into a predetermined two-channel band signal and outputs the signal. In addition, the video signals from the first to third VTRs (11) to (13), television station (16), and video camera (17) supplied to the system controller (10) are transmitted to the modulator/demodulator, respectively. (29), and modulates it into a signal in the band of each channel, that is, a 5-channel signal, and outputs it. In addition, the modulation frequency in this modulator/demodulator (29) is 60 channels or more of TV broadcast channels,
To prevent cross-modulation, the frequency bands are sequentially modulated every two channels. In addition, the video signal from the override VTR (14) is sent to the first VTR (
It is designed to modulate the signal of the same channel as the video signal from 11), and the override VT, R (14)
During playback, the first VTR (11) is placed in a pause state.

Then, the 2-channel CAD^ data signal and the 5-channel video signal output by this modem (29) are
It is supplied as a frequency multiplexed transmission signal to one end of a leaky cable (2) constituting a bidirectional signal transmission means. The other end of this leaky cable (2) is connected to a terminating resistor (2a) for termination. This leaky cable (2) is, for example, a coaxial cable with a spiral cutout around it to increase the amount of signal leakage.

In addition, terminal devices (6a), (6b) to be described later...
...The signal supplied to the Karari-key cable (2) is
After demodulating with the modem (29) of the central control unit (1),
The terminal device (6a) is supplied to the CADA encoder (28), and from the CADA encoder (28) to the master controller (19) via the system controller (10).
), (6b) . . . supplies data based on transmission signals from .

In this example, the central control device (1) is provided with a power supply device (3), and the AC 1 obtained from this power supply device (3) is
A 15V power signal is supplied to each device in this central control device (1), and this power signal is also supplied from this central control device (1) to each terminal device side to be described later via a power supply line P. .

Description of G2 Terminal Device Next, the configuration of the terminal side will be described. The above-mentioned leaky cable (2) is stretched throughout the cabin of the aircraft, as shown in Figure 2, and each passenger seat has, for example, one
Seats for three people (9a) in a set of seating units (9), (
9b), (9c) are provided, and this (7) I seat, :L
= knits 9) are arranged, for example, in two rows of about 1 m each on either side of the central aisle. And seats for these three people (
9a>, (9b), and (9c). For each seat unit (9), terminal device groups (60a), (60b), and (6) are provided.
0c) --- are provided, and each terminal device group (60a
), (60b), (60c) -... Three terminal devices are installed for each. That is, each terminal device group (60a
), (60b), (60c) --- are the antennas (4a), (4b), (4c) that are used to catch the transmission signal leaking from the leaky cable (2).
are provided, and each antenna (4a), (4b), (
The signal captured by 4c)... is transmitted to the distributor (5a), (5
b), (5c)..., divided into three by the respective distributors (5a), (5b), (5c) =-..., and the three divided signals are sent to the respective seat units (9). and each seat (9a), (9b).

(9C) Terminal devices (6a) and (6b) provided for each
, (6c) ・−= is supplied. In addition, leaky cable (2) and antenna (4a), (4b), (4c
)... instead of using the central controller (1) and each terminal device (6a), (6b), (6c) ---
- may be directly connected using a branch or the like. Furthermore, in this example, leaky cables (2) of each system are used in the left column and the right column.

This terminal device (6a), (5b), (6c) ・-
= represents each passenger seat (9a), (9
Fig. 1 shows the details of only one terminal device (6a), but the other terminal devices (6b), (6c), etc. have the same configuration. It is. This terminal device (6a) transmits the transmission signal distributed by the distributor (5a) to a TV channel (61) and a CADA channel.
--1- (62), and in the TVf Nice (61), among the signals of multiple channels sent from the central control unit (1) to the leaky cable (2), the predetermined one to which the video signal is transmitted is A channel is selected and demodulated based on the channel selection information described later, and the demodulated video signal is sent to a monitor receiver (63
) and receives the video signal. In addition, graphics such as a map and characters are displayed on the monitor receiver (63) by signals supplied from the personal convenience store (65) to the TV tuner (61).

Further, the CADA tuner (62) is connected to the central control unit (1).
) to the leaky cable (2), which multiplexes audio signals and data.
The two-channel signal through which the DA data signal is transmitted is demodulated, and the demodulated signal is supplied to the CADA decoder (64).

Further, when the demodulated signal includes channel selection information, this channel selection information is supplied to the TV china (61).

Then, this CADA decoder (64) extracts desired data (or audio signal) from the multiplexed signal ScA in response to the operation of an operation key (67>) of the terminal device (6a), which will be described later, and personalizes the extracted data. It is supplied to the computer (65) or the terminal side controller (66).

This personal computer (65) has a memo IJ (
65a) is the connection. And the operation key (67)
is connected to the terminal side controller (66), and operation commands from the operation keys (67) are supplied to the controller (66). Further, headphones (68) and a joystick (69>) can be connected to this terminal side controller (66) via terminals (66a) and (66b), respectively.

Furthermore, the terminal devices (6a), (6b), (6c) of this example
)...-It is now possible to transmit data to the central control device (1) side. That is, each terminal device <6a).

(6b), (6c) ... The data obtained by the personal combination coater (65) is transferred to the CADA decoder (64).
) from this CAD decoder (64) to a transmitter (7a) installed in each seat unit (9).
), (7b), (7c), and so on. At this time, each terminal device (6a), (
6b), (6c) = Address number data stored in the memory (65a) is added and supplied.

And these respective transmitters (7a), (7b), (
7c)... are terminal devices (6a), (6b), (
6c) Modulates the data supplied from... into a signal of a predetermined band, and distributes the modulated signal to distributors (5a), (5b),
(5c) Antenna (4a), (
4b).

(4C) Supply to... By doing this,
Antenna (4a), (4b), (4c) = ・・
From the central control unit (1) via the leaky cable (2)
The modulated signal is transmitted to the central control unit (modulator/demodulator).
Demodulation is performed in step 29).

In addition, each terminal device (6a), (6b), (6C
)... personal combination coater (65), when an address setting signal is supplied from the central control unit (1) side in the address setting operation described later, memorizes the address number specified by this address setting signal! J (65a
>, and this stored address number is used as the address number of each terminal device. In this example, the three terminal devices (for example, (6a), (6b), and (6c)) of one set of seat units (9) use a common address number for the upper digits, and the lower digits The left side, center, and right side are distinguished by the information in the lower digit part, and the information in the lower digit part is determined in advance by each terminal device at its position (
(left, center, right), and only information on the address number in the upper digits is supplied from the central control unit (1).

Furthermore, when the transmission device is powered on, each of the terminal devices (6a), (6tl), (6c), etc. receives the data in the CADA data signal supplied from the central control device (1) as described above. The CAD^ decoder (64) demodulates the information at the channel ratio as a signal and supplies it to the personal computer (65). This channel assignment information is stored on a personal computer (65)
When supplied to the channel, the memory (65a) stores information in this channel ratio. Then, each terminal device (6a
).

(6b), (6c) When selecting a TV channel and an audio channel, the personal computer (65) selects a video signal in the TV china (61) and performs CADA on the basis of the channel ratio information. Controls the selection of audio signals at the decoder (64).

Next, Fig. 3 shows an example of the configuration of the panel surface of the terminal device (6a).
) are arranged on the left side, and operation keys (67) are arranged on the right side. This operation key (67) is a channel indicator (67a) and a channel up key (67b).
), channel down key (67c), game selection key (67(1)), and TV selection key (67c).
7e), menu selection key (67f), enter key (67g), and audio selection key (67h).
), a volume up key (67i), and a volume down key (67J).

In this case, the channel display (67a) consists of an upper digit display part (67a,) and a lower digit display part (67az), and the respective display parts (67a,), (67a2)
can display numbers or some alphabets in 7 segments.

For example, by pressing the TV selection key (67e) and then pressing the channel up key (67b) or channel down key (67c), the channel of the video signal to be received by the monitor receiver (63) can be changed to the desired one. Can be switched sequentially. Similarly, press the game selection key (67d) and menu selection key (67f).
Or, by pressing the audio selection key (67h) and then the channel up key (67b) or channel down key (67c), you can select a video game to be executed on the monitor receiver (63), select a menu, or use headphones ( 68) allows you to select the audio signal to listen to.

Next, each terminal device (6a), (6b), (6c)
The supply path of the power supply signal for operation will be explained. These terminal devices (6a), (6b), (6c)...
The power signal supplied to the central control unit (1) mentioned above is
It is obtained from the side power supply (3). That is, as shown in FIG. 2, the power signal line P connected to the power supply device (3) in the central control device (1) is stretched around the passenger cabin approximately parallel to the leaky cable (2). As shown in FIG. 4, this power supply signal line P actually consists of two power supply terminals (3a) from which an AC 115V signal is obtained and a power supply terminal (3b) at ground potential.
The terminals are connected to one power signal line P1 and the other power signal line P2, respectively. And this power signal line P,
, P2 are housed in a groove (30) provided in the floor of the passenger cabin, as shown in FIGS. 3). In this example, as shown in FIG. 2, the power signal lines P are arranged in two vertical rows in the cabin.

At the bottom of each seat unit (9) in the cabin of this airplane, a relay device (8) connected to this power signal line P is installed.
a), (8b), (8c)... are provided,
These relay devices (8a), (8b), (8c)...
A group of terminal devices (60a), (60b) attached to this seat unit (9) via...

(60c) ----・ transmitter (7a), (7b)
, (7c) = . . . , (7c) = . That is, for example, the relay device (8a) attached to the lower part of the front row seat unit (9) is as shown in FIGS.
As shown in the figure, a plurality of conductive claws (85) are provided that are electrically connected to the power signal lines P, , P in the groove (30).
The conductive claw (85) guides the power signal into the relay device (8a). In this case, the - side power signal line P1 is cut off at the connection point with this relay device (8a). Then, separate conductive claws (8
5) and guide it into the relay device W (8a),
Both ends are connected via a contact circuit (81). Therefore, when this contact circuit (81) is brought into a connected state by the electromagnetic circuit (82) described later,
The disconnected power signal line P is brought into a connected state.

Further, separate conductive claws (85) are connected to this power signal line P closer to the central control unit (1) than the cut point and the other power signal line P2, respectively, to connect both signal lines Pl.

The Ti source signal obtained from P2 is led into the relay device (8a), and from this relay device (8a) the terminal device group (
60a) to be supplied to the transmitter (7a).

Each circuit of the transmitter (7a) is operated by the supplied power signal. Also, this transmitter (7a)
, the terminal device (6) in this terminal device group (60a)
This power signal is also supplied to a), (6b), and (6c) to operate each terminal device (6a), (6b), and (6c).

In this example, a control signal is supplied from the transmitter (7a) to the relay device (8a). That is, as shown in FIG. 4, a DC low voltage signal is supplied from the transmitter (7a) to one end of the electromagnetic circuit (82) of the relay device (8a),
The other end of this electromagnetic circuit (82) is connected to the collector of an npn type transistor (84). Also, the transmitter (7a)
A control signal is supplied from the resistor (83) to the base of the transistor (84).

By configuring the relay device (8a) in this way,
When a control signal is supplied from the transmitter (7a), the transistor (84) is turned on and the electromagnetic circuit (82) is turned on.
), and the contact circuit (81) becomes connected. Furthermore, when the control signal is not supplied, the DC low voltage signal does not flow through the electromagnetic circuit (82) and the contact circuit (81
) becomes disconnected. In this example, this transmitter (
The control signal from 7a) is output when the terminal devices (6a), (6b), and (6c) connected to this transmitter (7a) are addressed. Then, when this contact circuit (81) becomes connected,
A power signal is now supplied to the rear power signal line Pl.

In addition, this terminal device (6a), (6b), (6c)
Relay devices (8b), (8c) with a similar configuration are also installed in other seat units (9), (9), etc. installed following the seat unit (9) in which the seat unit (9) is installed.
... are connected, and each relay device (8b), (8
c) By bringing the contact circuits (81) into the connected state, power signals are sequentially supplied to the rear power signal lines P, .

In addition, in the cabin of the airplane of this example, the seat units (9) are arranged in two rows on the left and right as shown in FIG.

(8C) There are a total of two sets of seat units [9], one on the left and one on the left.

G3 Explanation when setting the address Next, each terminal device (6a) of the information transmission device of this example.

(6b), (6c) . . . The operation when setting addresses will be explained.

This address setting is performed when the seats are arranged during the manufacture of this airplane, when the seats are replaced, etc. When performing this address setting, it is first performed based on address setting information stored in advance in the master controller (19) of the central control device (1). This address setting information stores a seat layout chart in the cabin of this airplane and an address assigned to each seat on this layout chart.

Then, based on this address setting information, addressing is performed under the control of the master controller (19), but in a state where this addressing is not performed,
Transmitter (7a) for each seat unit (9).

(7b), (7c) = relay device (8a>, (8b) connected to...

The contact circuits (8I) of (8C)... are all in a disconnected state. For this reason, the front row seat unit (9) is directly connected to the power supply device (3) via the power signal line P.
The power signal is supplied only to the terminal devices (6a), (6b), (6c) and the transmitter (7a). In this state, the leaky cable (2) is transmitted as a CADA data signal from the master controller (19) of the central control unit (1) via the CADA encoder (28).
Outputs the address setting signal to. The address setting signal at this time includes information indicating the address of the frontmost seat on the seat layout table stored in the master controller (19).

When the address setting signal is output as a CAD^ data signal in this way, the terminal devices that are powered and in operation at this time are the terminal devices (6a) and (6b) of the seat unit [9] in the front row. ), (6c), so CAD of this terminal device (6a), (6b), (6c)
Only eight CHINAs (62) receive this CADA data signal and supply address setting signals to their respective personal computers (65). This terminal device (6a),
(6b), (6c) personal computer (65
), when the address setting signal is supplied to each memory (65) connected to each personal computer (65).
5a) stores the address number indicated by this address setting signal. At this time, three terminal devices (6a), (6
In b) and (6c), only the common address number in the upper digit part is designated by the address setting signal, and the corresponding address numbers are automatically set in the lower digit parts, respectively. For example, when a terminal device group (60a) is instructed to add the number X as an address number, the terminal device (6a) is number 1 of X, the terminal device (6b) is number 2 of X
It is addressed as number 3.

When the address setting work for these terminal devices (6a), (6b), (6C) is completed, each terminal device (6a), (6C)
6b), (6c) personal computer (65)
The data indicating that the address setting has been completed is supplied to the transmitter (7a) with the address number just assigned, and sent from the transmitter (7a) to the leaky cable (2) via the antenna (4a). The transmitter (7a) is supplied to the master controller (19) of the central control device (1).
, (6b), and (6c), a control signal is supplied to the relay device (8a), and the contact circuit (
81) into a connected state.

Then, the master controller (
When the address setting completion data is supplied from the terminal devices (6a), (6b), and (6c) to 19), this master controller (I9) stores 8. An address setting signal indicating the address of the second seat is output from this master controller (19). At this time, the contact circuit (81) of the relay device (8a)
) is in the connected state, so the terminal devices (6d), (6e), (6f) and transmitter (7b) of the seat unit (9) in the second row from the front are connected next to this relay device (8a).
1 m t source (i) is now supplied. Therefore, the terminal devices (6a), (6b), (
6c), (6d), (6e), (6f) are C
It receives ADA data signals and supplies address setting signals to each personal computer (65).

At this time, the terminal device (6) of the first row seat unit (9)
Since address numbers have already been set in a), (6b), and (6c) in the above-mentioned operation, subsequent address setting signals are ignored. Therefore, this address setting signal is stored in each memory (65a) connected to the personal computer (65) of the terminal device (6d), (6e), (6f) of the second row seat unit (9). The address number indicated by is stored in the same manner as for the first row seat described above.

And these terminal devices (6d), (6e), (6f
) is completed, each terminal device (6d
), (6e).

The personal computer (65) of (6f) supplies data indicating completion of address setting to the transmitter (7b) with the address number just assigned, and sends the data from the transmitter (7b) via the antenna (4b). to the leaky cable (2) and the master controller (
19〉. The transmitter (7b) also includes terminal devices (6d) and (6e) connected to the transmitter (7b).
), upon confirming the supply of data indicating completion of address setting from (6f), a control signal is supplied to the relay device (8b), the contact circuit (81) of this relay device (8b) is connected, and the previous The terminal devices (6g>, (6h), (6i) and the transmitter (
7C) to supply the power signal.

Then, the master controller (
19) confirms that the second row seat addressing has been completed.
When T is reached, an address setting signal indicating the address of the seat in the third row from the front in the seat layout table stored in this master controller (19) is output.

In this way, the contact circuits (81) of the relay devices (8a), (8b), (8c), etc. are connected in the order in which the power signal line P is connected, and each terminal device (6a) is connected. ,
(6b), (6c) . . . are alternately assigned addresses up to the last row of seats, thereby creating a group of terminal devices in each row (60a).

(60b), (60c)... While the power is turned on in order, the addresses stored in the master controller (19) of the central control unit (1) are the terminal devices (60a), (60b).

(60C) ... is set every time, and automatic address setting is performed for all seats in the cabin of this airplane. When the address settings for all seats are completed, all relay devices (8a), (8b), (8c)...
Since the contact circuit (81) is in the connected state, all the seat terminal devices (6a), (6b), (6c)...
It operates when a power signal is supplied to it. Since the set address is maintained until the seat unit (9) is replaced or rearranged, the relay device (8a),
The connection state of the contact circuits (81) of (8b), (8c)... is maintained, and the central control unit (1) and each terminal device (6a), (6b), (6c)... Various types of information are transmitted, and various services are provided to passengers. At this time, the CADA transmitted from the central control device (1)
By adding a signal specifying the address of a specific terminal device as a data signal, this CAD^ data signal is demodulated by the terminal device in which this specified address number has been set (stored), and this CAD^ data signal is sent to this specific terminal device. It becomes possible to provide a predetermined service targeted only to

Note that in this example, the terminal devices (6a), (6b),
(6c)... are configured as a group for each seat unit (9), and power supply and addressing are performed for each group, which simplifies the configuration accordingly.

Furthermore, as shown in Figure 2, seat units (9) are arranged in two rows in the horizontal direction in this airplane, and in the above-mentioned work, addresses are only set for one row, but in this example, , from the central control device (1) to the terminal devices (6a), (6b), (6c) of each seat unit (9) ----
Since the leaky cable (2) that supplies information signals to each column is a separate system for each column, when setting the address for the first time, the address setting signal is supplied only to the leaky cable (2) of one system, and for the second time. If the address setting signal is supplied to the leaky cable (2) of the other system when setting the address of the column, the address setting of all the columns can be done separately, and different addresses can be set for each column under the control of the master controller (19). can be added.

G4 Description of Other Embodiments In the embodiments described above, the power signal supply line was disconnected by a relay device, but other signal lines may be used. For example, as shown in Figure 7, the power supply is supplied to each terminal device (6
a'), (6b), (6C), etc., and a reference signal generator (10) that outputs a predetermined reference signal is provided on the central control device (1) side, and this reference signal The reference signal supply line S from the generator (lO) is connected to the transmitter (7a), (7b) of each seat unit (9).
Relay devices (100a) and (100b) connected to
)... in order. Inside each relay device (100a), (100b), etc., a reference signal supplied from the preceding stage relay device (or reference signal generator) is transmitted to the respective transmitter (7a).

(7b)..., and the signal line from which this reference signal is obtained is connected to the signal line to the subsequent relay device via the contact circuit (101). Also, the signal line to the subsequent relay device is grounded via a resistor (105). And each transmission 1s! (7a), (7b)
The DC low voltage signal outputted by ... is connected to the electromagnetic circuit (102
), and the other end of this electromagnetic circuit (102) is connected to the collector of an npn transistor (104). Also, each transmitter (7a), (7b)
A control signal is supplied from . . . to the base of the transistor (104) via the resistor (103). Then, each terminal 'Iz ff1(6a>, (
6b).

(6C)...and each transmitter (7a), (7b)
... are operated by being supplied with a reference signal from a reference signal generator (10). and the transmitter (7a) of the seat unit (9) in which the address has been set;
(7b) Relay device (10
0a), (100b) ... contact circuit (10
1) Supply a control signal so that only one device is connected.

With this configuration, when setting the address,
The reference signal is sequentially supplied to the seat units (9) in the rear row of the seat units (9) for which the address setting has been completed, and automatic addressing is sequentially performed in the same manner as in the above-described embodiment.

Although the above embodiment has been explained using a passenger plane as an example, the present invention can also be applied to vehicles such as trains and buses, or to theaters and stadiums, if the service is provided to a large number of customers.

Furthermore, it goes without saying that the present invention is not limited to the above-described embodiments, and can take various other configurations without departing from the gist of the present invention.

H Effects of the Invention According to the information transmission device of the present invention, addresses are automatically assigned to each terminal device in a predetermined order corresponding to the arrangement of seats, and there is an advantage that the address setting work does not take much time.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the information transmission device of the present invention, FIG. 2 is a perspective view showing the arrangement of the embodiment, and FIG. 3 is a front view showing the terminal device of the embodiment. 4 is a configuration diagram showing a power supply path in one embodiment, FIG. 5 is a perspective view showing the vicinity of a relay device in one embodiment, FIG. 6 is a sectional view taken along the line VT-VI in FIG. FIG. 7 is a block diagram showing another embodiment of the information transmission device of the present invention. (1) is the central control unit, (2) is the leaky cable, (
3) is a power supply device, (4a), (4b), (4c) are antennas, and (5a). (5b), (5c) are distributors, (6a), (6
b), (6c) = ・- is the terminal device, (7a),
(7b), (7c) are transmitters, (8a), (8b)
, (8c) ID unit, (10) system controller, (11) first (7) VTR,
(12) C1) VTR1 (13) is the third VTR,
(14) is a VTR for override. (15) is a still image transmitter, (16) is a television corner,
(17) is a video camera, (18) is a microphone, (19)
is the master controller, (20) is the keyboard, (2
1) is a monitor receiver, (22) is a printer, (23a)
~(23g) is a ROM cartridge, (24) is a floppy disk drive, (25), (26)
is an audio player, (28) is a CADA encoder, (2
9) is a modem, (60a), (60b), (60
C) ... is a group of terminal devices, (61) is a TV tuner,
(62) is a CAD^ tuner, (63) is a monitor receiver, (64) is a CAD^ decoder, (65) is a personal computer, (65a) is a memory, (66) is a terminal side controller, (67) (69) is a joystick, and (S) is a power signal line. Agent Paige Ito
Hide Matsukuma Moriyoshi 5 Plan L-Diagram 61

Claims (1)

[Scope of Claims] An information transmission device in a vehicle that transmits information signals from a central control device to a plurality of terminal devices arranged in each of a plurality of seats, wherein a predetermined information signal different from the above information signal is transmitted to the plurality of terminal devices. A signal supply line for supplying a signal is connected in series from the signal source to the plurality of terminal devices, and a supply line disconnection means is provided on the signal supply line between the respective terminal devices, and each supply line disconnection means is provided. When the terminal device connected immediately before the disconnection means is addressed, the disconnection of the signal supply line is released and the connection is made, and when setting the addresses of the plurality of terminal devices, the signal supply line is disconnected from the signal source. After assigning an address to a terminal device to which a predetermined signal is supplied, the disconnection of the supply line by the supply line disconnection means between the addressed terminal device and the next terminal device is canceled and the connection is made. 1. An information transmitting apparatus characterized in that the above operations are repeated, and addressing is performed in the order in which they are connected by the signal supply lines.