MONET-Compatible Car-mounted Information
`Terminal
`
`@ Takao Kami
`
`© Hayami Encho
`
`@ Ichiro Kugo
`
`® Katsuharu Yokoyama
`
`@ Masato Maruoka
`
`
`
`Recently, such representative car computer systems as car navigation systems have been Improving at
`a very rapid pace. As a result, by as early as the beginning of tha 21st century, we will likely see the
`arrival of automatic payment systemsand autematie driving systems, othenvise referredto as “Intelligent
`Transport Systems” (ITSs}], One of the main purposes of ITS is to make vehicles high Information-
`arjented formsof transportation. An example ofthis is the appearance ofbuilt-in systems providing on
`a real-time basis traffic information thatis useful to the driver, a system realized by linking the vehicle's
`car navigation system with Its communications equipment. The ATIS which was introduced in 1995 and
`the VICS which made its appearance in 1996 provide mainly traffic information. Autamobile
`rnanufacturers, however, have started working on building systems that provide drivers with other
`categories of useful information such as weather forecasts and news reports.
`This paper introduces MONET, a newinformation service system that has been jointly provided by
`Toyota Motor Corporation, Fujitsu Limited, and Fujitsu TEN Limited since Novernber 1977.
`
`PUJFTSU TEN TECH. J, NO. 11 11998}
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`T. Kanai et al: MONET-Compatible Car-mountedInformation Terminal
`
`1.
`
`Introduction
`
`‘The recent rapid spread of car navigation systems is
`giving rise to newinformation services, such as Automatic
`Transit Information Systems (ATIS}) and Vehicle
`Tnformationand Communications Systems (VICS),systems
`that offer drivers information about accidents and traffic
`
`jamon areal-time basis. Coincidentally, at about the same
`time,the numberofusers ofcellular telephones (especially
`digital versions) grew rapidly. (Currently, cetlular telephone
`service subscribers number 25 rnillion.)
`Under these circumstances,
`the Intelligent Traffic
`Guidance Service (ITGS), a new service for Mercedes
`Benz automobiles became available in 1997. This service
`
`uses the car’s cellular telephone systemto provide (via the
`car navigation equipment) drivers with not onlytraffic
`information, but also news, weather forecasts, and other
`information.
`
`led by
`Other Japanese automobile manufacturers,
`Toyota Motor Corporation became actively involved in
`building systems offering similar information services.
`Since 1994, Fujitsu TEN Limited, with the cooperation of
`Fujitsu Limited and Toyota Motor Corporation, has been
`working on realizing apractical information service system.
`This joint effort led to the establishment of Toyota
`Media Station Inc. inJuly, 1997, In Novemberofthat year,
`the new company began offering a new service called
`MONET(an acronym for MObile NETwork that has the
`same pronunciation andspelling of the well-known painter),
`
`Fujitsu TEN has developed a hands-free Electronic
`Control Unit (ECU). This paper outlines the equipment
`and discussesits future aspects.
`
`2. Characteristics of the MONET-compatible
`hands-free ECU
`
`2.1 Overall system
`Information that can be handled by the MONET-
`compatible hands-free ECU includes traffic-related
`information on such as that on accidents, traffic jams;
`information on facilities such as parking facilities and
`restaurants; entertainment-related information such as
`upcoming events; and general information such as news
`and weather forecasts; and personal-use information
`including electronic mail.
`These pieces of informationare collected by Toyota
`Media Station Inc. from information providers or via the
`Internet, then transinitted to users on request (See Figure
`1).
`
`2.2 Function overview
`
`The MONET ECU, a sophisticated information
`terminal, works with cellular telephones and navigation
`equipment to collect information in types, forms, and
`quantities required by the driver and passengers when
`necessary (See Figure 2}.
`
`
`
`internet
`
`MONETinformation center
`
`
`
`Base station for
`cellular telephones
`
`
`
`Figure 1 Configuration of a MONET system
`
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`MONET
`
`information
`
`center,
`
`
`
`
`unit
`
`Navigalion
`
`
`Micrwphene
`MONET-ECU
`and switch
`]
`
`
`Speaker
`
`Fipure 2 Components of the MEONETcar-mounted equipment
`
`The MONET ECU has the following two major
`functions:
`
`- Obtaining MONETinformation
`~ Serving as a hands-free telephone
`
`2.2.1 Obtaining MONETinformation
`The user can retrieve MONET information by
`originating a call after selecting the type of information
`desired, from the menu displayed on the terminal. Types of
`frequently used information or services canbe registered in
`advance so that a request for the desired information!
`service can be issued with a few actions (See Figure 3, 4).
`Information obtained maybe text or image data. It is
`presented on the display installed in the passenger
`conipartment,
`
`
`
`Figure 4 Menu fer making a request
`
`T. Kamai et ai: MONET-Compatible Car-moxnted information Terminal
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`@ Communications
`For conmmmnications, the MONET ECU usesa digital
`cellular telephone (9600 bps) whichis areliable cetiular
`telecommunications media. The MONET ECU is
`
`designed for compatibility with any manufacturer’s
`cellular telephone. Jt contains software that allowsit
`towork asan adapter controlling data communications
`to and from the cellular telephone.
`The protocol for communications between the center
`andthe car-mounted product is the Mobile Network
`Communications Protocol (MNCP) developedjointly
`between Toyota Motor Corp. and Fujitsu Limited.
`Tnnovations have been madeto the protecelto shorten
`line connectiontimes.
`@ Linkup with navigation equipment
`When obtaining information, the MONET ECUuses
`askey datathe vehicle’s destination andcurrentocation
`set on the navigation equipment. For example, if a
`restaurant close to the destination is selected, posilion
`information (latitude and longitude) on the destination
`is obtained from the navigation system. This
`information is then transmitted to the information
`
`center as key data for informationretrieval.
`If the information received contains position
`information, the position information is passed to the
`navigation equipment.
`For example, position
`information(latitude and longitude) about a restaurant
`is passed to the navigation equipment so that the
`position of the restaurant can be displayed on the
`navigalion map (See Figure 5).
`
`
`
`Figure 5 Display of specific location on MONET map
`
`@) Data retrieval via voice synthesis
`To ensure safe driving when the vehicle is traveling,
`the MONET ECU has a function that uses voice
`
`synthesis to read the text data out loud.
`Since the data lo be read outloud is transmitted from
`
`the center separately from the data to be displayed,
`there is no reading error (See Figure 6).
`
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`T. Kanai ef al: MONET-Compatible Car-mounted tnfonnation Terminal
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`<Facility information>
`
`(4)
`
`Information storage
`Informationonce retrieved canbe stored inanonvotatile
`
`memory so that itcan be viewed at a later time, This
`means that the user need not down-load information
`fromthe information centereachlime such information
`
`(3)
`
`is required, Instead, the user can viewthe information
`by retrieving it from the memory in the terminal.
`‘Types of information
`The lypes of information currently available are given
`below, The information ment is managed by the
`
`
` Figure 6 Sereen displayed when lext is being read aloud
` center and updated automatically when appropriate.
`
`|
`
`
`- Roadtraffic information (See Figure 7)
`- Facility information(parkingfacilities, gas stations,
`restaurants, ski resorts, interesting town spots and
`others) (See Figure 8}
`- Town map
`- Japan Automobile Federation JAF) guide
`- Hospitals
`- Police stations
`
`Figure 8 Restaurant information screen
`
`<Electronic mail>
`
`Figure > E-mail sereen
`
`<News>
`
`BORK
`aecxe
`
`- Live images
`- Blectronic mail (See Figure 9)
`- News (See Figure 10}
`- Weather forecast (See Figure 11)
`Typical information sercens are shown below.
`<Roadtraffic information>
`
`Figure 10 News screen
`
`<Weather forecasi>
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`2.2.2 Serving as a hands-free telephone
`Using a cellutar phone while driving is nol
`recommended. Sometimes, however,
`their use is
`unavoidable. Hands-free telephone systemsare intended
`to minimize the driver’s operation loads when using
`telephone.
`‘The driver does not need to operate the cellular phone
`directly. The driver only needs to use certain screen
`buttons, an attached microphone, and a switch for either
`making a call or responding to an incoming call. Using a
`microphone and loudspeakerinstalled in the vehicle interior
`allows the driver to aperate the cellular phone in a hands-
`free manner.
`
`The MONET ECUis also equipped with standard
`functions a typical cellular telephone would have plus a
`function for transferring data to or from the cetlutar
`telephone.
`G) Dialing
`The user enters a telephone number to make a phone
`
`call (Figure 12).
`
`Figure 12 Dialing sereen
`
`@) Automatic dialing
`For automatic dialing, you simply select a telephone
`number registered in advance in the memory. The
`selected number is then automatically dialed (Figure
`13).
`
`
`
`Figure 13 Screen for calling from memory
`
`T. Kamai et at: MONET-Comparible Car-mounted Information Terminal
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`@) One-touchdialing
`You canselectone ofthe telephone numbersregistered
`inadvance inthe memory by touching one switch. The
`selected number is then automatically dialed (See
`
`Figure 14}.
`
`Figure 14 Screenfor one-touch dialing
`
`©
`
`© Answering incoming calls
`Yousimply touch a switchto answer an incoming call.
`Registering telephone numbers in the memory
`You can register telephone numbers and names in the
`memory,
`() Transferring phone numbers fromthe cellulartelephone
`to the terminal
`
`those telephone
`You can transfer to the terminal
`numbers already registered in the cellular telephone.
`
`3.1 Ilardware characteristies
`
`The MONRT ECU uses Fujitsu’s 32-bit CPU
`(SPARClite) and a newly developed MM-ASIC
`(MB87F 116), A recent trend in implementing a function in
`a productistodesign software specificaily for that function.
`When developing the MONET ECU, we also designed
`sofiware for a numberoffunctions, including a digital data
`adapter (soft modem), voice synthesis, and image drawing
`control.
`
`In the conceptual design stage, when we selected the
`components for the MONET ECU, we took into
`consideration the memory and CPU power required to run
`the software hinpleneniing dhese functions.
`Figure 15 is a block diagram showing the internal
`components of the MONET ECU. The memory (flash
`memory, SDRAM, and SRAM)is arranged around the
`CPU and ASIC. The peripherals consist only of the
`required interfaces,
`The cellular telephone {including the modem) and
`hands-free features incorporated in the MONET ECUare
`compatible with a good number of cellular telephone
`
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`Fortesting, we developed separately fromthe operating
`va.[ l6-nire
`software testing software
`designed to run in the
`manufacturing stage. This testing software is stored in a
`:
`|
`interface
`Ag
`flash ROM.
`‘Therefore, even if the operating sofiyare
`:
`ADivaiee
`Extcaral woke
`
`tFL+. FL) HorteticePLSmee |G77 : specification is changed, it will not affect the testing
`
`
`
`
`_ method. Since the operating software is installed after the
`internal yo:
`—_
`sprehesisy
`|
`H
`: -f SAM|tt
`
`E
`| MA-asic
`conpletion of the test, there is no need to provide extra
`Wetie
`.
`nuseuus.
`forensics
`UR
`memory for testing software.
`In the course of product
`Navigation] RGR Id
`development, we also developed an automatic tester that
`— 6
`Draaing!
`are
`inepe
`ean automaticallytest all of the functions of the MONET
`az
`Our
`aed
`syne
`RUB
`sebshing
`AYE —~
`_detation
`ECU in about seven minutes (See Figure #7).
`
`T. Kamali opal: MONET-Compatible Car-mounied Information Terminal
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`Y
`
`icaeface
`
`oT
`
`
`
`
`
`SFO @
`
`i
`|
`i
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`Vehicle upeess Chiboad f
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`
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`Figure 17 Automatic tester
`
`3.2 Software characteristics
`
`The MONETECUcontains a high-performance CPU
`and an advanced ASIC so that its principal functions are
`implemented by software. The software sinicture and the
`principal functions are discussed below.
`
`3.2.1 Software structure
`The software for the MONET ECUis structured
`
`hierarchically, with consideration given to development
`efficiency and horizontal expansion/evolution of software
`components (Sce Figure 18). Each hierarchical layer is
`briefly explained below.
`-
`Device driver layer: This layer is designed for direct
`access to hardware. When the hardware is changed,
`smooth conversion can be accomplished by modifying
`this layer while maintaining interfacing (application
`programinterface, or API) with the higher layer (server
`layer).
`Server layer: This layer is positioned between the
`device driver and application layers.
`It serves to
`
`-
`
`
`
`—o|
`
`sp-naMt
`
`|
`fZ
`
`achat
`eee surely
`ee 0
`GxDb O——-—— Ce arctan)
`
`ro
`owes
`To pow
`serpy pn
`
`Figure 15 Block diagram of the MONET ECU
`
`Comections between the MONET ECU and AV
`
`equipment conform to Foyota’s communications
`specification for car-mounted equipment (AVC-LAN).
`‘This means that the MONET ECU is compatible with our
`andother manufacturers’ display devices (including AVNs,
`AYXs, and TVs),
`For compatibility with vehicles, two types of MONET
`ECUnits have been designed: One type comes with an
`antenna and a cradle (two models for 800 MHz and 1.5
`GHz) and the other type is antennaless, ‘The MONET ECU
`is therefore compatible with all Toyota models, We
`anticipate high growth potential for this unil in the future.
`A noteworthy engineering feature is its high-density
`packaging which relies on BGA packages and type-1005
`chip components (See Figure 16).
`The CPU board is designed so that mounting of
`components is fully automated (double-sided reflow
`soldering) and that defects caused by human error are
`eliminated when the board is processed.
`
`‘
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`1, Kamaiet al: MONET-Compatible Car-mounted infonnation Terminal
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`provide individual functions tothe application layer. Since
`itis designed on the basis of predetermined APIs with the
`lower and higher layers,it can generally be used with other
`products having a similar structure.
`Application layer: This layer is designed in accordance
`with unique userspectifications soastoimplementfunctions
`(specifications) specific to the product.
`The OS for the MONET ECU software is Vx WORKSfor
`
`-
`
`including the good development
`a number of reasons,
`environment offered by Vx WORKS. The authoring tool is
`VAPSbecause itcan be expectedto provide improvedefficiency
`in screcn contra] program development,
`
`Mad
`
`5
`
`oe
`Se
`
`7
`
`Hindsfive telephone
`apaicuka
`
`Task
`tra
`
`on
`
`Application
`yer
`
`Seever layer
`
`Deke
`driver layer
`
`
`
`taeo
`
`oes
`
`
`
`Mee ss sta
`
`Figure 18 Software structure
`
`3.2.2 Software modem
`
`The MONET system requires a data adapter function
`because a digital cellular telephone is used between the center
`and the car-mounted terminal. The MONETECUuses software
`
`3.2.3 MNCP
`
`MNCPstands for the MONET communications
`protocol which was originally developed for
`conmunications between an information center and a
`
`terminal. By complying with MNCP, the MONET
`ECUassures high reliability,
`low communications
`cost, and expandability. The features of MNCPare as
`follows:
`;
`~
` ‘Joreduce communicalions overhead, MNCPuses
`long frames ofup to 12K bytes in comparison with
`other communications protocols (See Figure 20),
`‘The connection between the centerand the terminal
`
`~
`
`isestablished only during the period from the time
`an informationrequestis issued bythe terminal to
`the Gime the information transmission from the
`
`If an extended period of time is
`center ends.
`required before information transmission can
`begin, the fine will be disconnected temporarily
`afer a certain period of time has transpired. The
`line will then be reconnected after the number of
`
`the center (asynchronous
`hours specified at
`communications) has transpired. This helps to
`reduce the communications cosis to be borne by
`the user.
`
`-
`
`‘he menu structure and the automatic update
`function makeit possible to automatically update
`the services offered by the center. The data format
`used also assures flexible expansion of services
`offered by the center.
`
`Upto 12K bytes
`Data field
`
`FCS
`
`
`
`
`
`for protocal conversion (software modem). Figure 19 shows
`the functional components of the software modem.
`
`
`Considering requirementsfor a data adapterfunction built
`
`in the terminal and hands-free talk and listen function, we
`newly developed an API processing unit and a hands-free
`function control unit (for answer- on-hold and transfer-by-pre-
`
`
`
`
`. Command|Tout marker m Tet Size ofthe
`
`
`
`assignment).
`
`seecen]eats[ranacis[erectatose]peteRwa
`Figure 20 MNCPfrante layout
`
`
`
`3.2.4 High-quality voice synthesis
`Voice synthesis isa meansofproviding information
`to drivers in a safe manner. The MONETsystem
`provides ahigh-quality read-out loud{voice synthesis)
`function. With voice synthesis, the driver does not
`have to worry about misreading any incoming data.
`This is achieved by assigning a language processor
`(which determines how each piece of textis pronounced,
`or is represented by phonetic characters) to the center
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`T. Kanai eral: MONET-Compatible Car-mounted Information Terminal
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`characters to voice) to the car-mounted terminal (See
`Figure 21}. The MONETECU usesa waveformdictionary
`(2 megabytes, male voice), the best available to date, to
`synthesize natural-sounding, high-quality voices for the
`user.
`
`
`
`~ News
`
`so
`Word 4
`dictionary
`
`oo
`Wavefonn
`dictionary
`
`Information
`center
`
`Car-maunted
`
`If a telephone number is attached to
`- Dialing:
`obtained information, a “Telephone” switch is
`displayed on the information screen. The user can
`make a phone call simply by touching the switch,
`Information storage: Up to 96 kilobytes of
`information can be stored — for example, about 30
`e-mail messages, about 200 news items, 3 to 4
`imiges, or 5 to G maps.
`(These figures vary from
`cage Lo case.)
`
`-
`
`
`
` Contents (text)
`- E-mail, among olhers
`
`Phonetic characters wilh}
`
`
`accent specilication
` tenninal
`
`1 1 . a 4 1 1 1 * . . . 4 + + * ? 1 ' t ' + * 2 ' z + * a + 2 * 1 a * 7 ' . 4 4 ' + 1 7 1 4 * ' z 4 . + .
`
`Figure 21 Structure of the voice synthestzer
`
`Figure 22 Sereendisplaying a fst of selectable reply messages
`
`3.2.5 MONETapplication
`When the user obtains information fromthe center, the
`MONET ECU presents ihe information in one of the
`following ways:
`@ Display
`- Text display: Obtained infonnationis displayed as
`character information.
`
`-
`
`Image display: Obtained GIF data (photographs
`and street maps)is displayed in 256 colors.
`- Display ofspecific locationon map: Ifposition data
`(latitude and longitude) is attached to obtained
`information {including facility information and e-
`mail), a mark can be displayed on the navigation
`map. This tocation can also be designated as the
`destination by the navigation equipment.
`@) Read-out loud function
`- Hf the user enables the read- out loud function, it
`automatically reads out loud information obtained
`fromthe center when the automobile is traveling.
`- A read-out
`loud switch is available.
`It begins
`reading obtained information out loud.
`Q@) Others
`- Simple responses to mail messages (See Figure 22):
`When a mail messagearrives, the user can respond
`to it by selecting one of simple messages stored at
`the center, It is also possible to attach information
`about the location of the automobile to the response
`
`3.3 Structure characteristics
`
`Since the MONET ECU comprises optional car-
`mounted equipment, there is restriction on its installation
`position —forexample, under eitherthe driver’s seat or the
`front passenger’s seat. Considering such limitations in
`terms of installation locations, we took note of the
`importance ofits external dimensions early in its design
`stage. We realized the importance of coming up with
`external dimensions that would be suitable for installation
`
`on any vehicle model, In the end, we concluded that the
`width would have to be a maximum of 240 millimeters
`
`(equal tothe width ofnavigation equipmentalreadyin use)
`to enable installation of the ECU underthe front seat.
`
`The customer presented us specifications stating that
`the external dimensions be ihe same as those of existing
`equipmentincorporating lower level functions compared
`to those of the MONET ECU. To satisfy the customer's
`specifications, we concludedthat the external dimensions
`for regular production would have to be 240 mm(width) x
`117 mm(depth) x 30 mm (height). Figure 23 shows the
`exterior of the main unit of the MONET ECU.
`
`To package all of the necessary functions within a
`MONET ECUhaving these external dimensions, we had to
`reduce the areaofthe PC boards with components mounted
`onthem. We solvedthis problemby using the components
`piven below:
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`T. Kamai etal: MONET-Conipatible Cor-mounted Information Terminal
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`When designing the heal radiation stricture, we
`considered the close contact between the IC and the
`
`radiator, focusing on the quality of the contact, the
`ease of assembling the two, and the ease of after-sales
`service activities. For this purpose, we chosea material
`that we believed assures good contact. For this
`selection, we considered that the material should:
`@) have a high degree of thermal conductivity,
`@)
`facilitate the assembly process, and
`@ not have any adverse effect on the environment.
`Table | lists the evaluatedmaterials and theirproperties.
`We designed the heat radtation structure with emphasis
`on ease of assembly, by using tyo PC boards andinserting
`silicone rubber between the ASIC and the radiator.
`
`Figure 24 shows the siructure of the MONET ECU,
`
`‘Thermally conductive
`
`aluminum sheet
`
`‘,
`Therntally conductive \
`silicone mbber
`
`\
`
`CPU board
`(both sides reflow-soktered)
`
`70-pin reflow-soldered
`connector
`
`fain board
`(reflow- and flow-soldered)
`
`MM-Asis
`
`
`(BGA package}
`Topiboitomchassis
`
`Figure 24 Structure of the MONET ECU
`
`
`
`
`
` o
`
`Figure 24 Exterior of the MONET ECU
`
`@)
`
`D) High-density packaging provided by Fujitsu's 32-bit
`CPU (SPARCHie), a newly developed MM-ASIC
`(MB87F116), and type-1005 chips.
`‘Two-boardconfiguration — a CPU board (65 x 115)
`structured so that reflow soldering can be done on both
`sides and a main board (219 x 111) mixing ordinary
`and discrete components, with shortened processes
`realized with stable quality of rmounted components
`and fully automatic esting.
`G) New 9-millimeter high, 70-pin reflow-soldered
`connector for linkage between the CPU and main
`boards,
`
`Using the components described above allowed us
`incorporate all of the necessary functions within the
`desired external dimensions, In particular, the ASIC
`was the result of our first attemptto use high-density
`BGA packaging.
`It is structured so that any heat it
`generates must be dissipated,
`
`Table t Evaluated materials for heat radiation and their propertics
`
`Hardening condition 25°C, TZ hours|150°C, 30 minutes|150°C, 60 minutes 25°C, 72 hours ”
`
`Bonding materia
`Company D
`Company €
`Company B
`Company A
`Manufacturer
`
`
`
`Type One-packsilicone[Silicone rubber|Silleone mibberOne-pack silicone Twa-packsilicone
`sheet
`sheet
`3;
`4
`a
`*
`5
`
`
`2
`120°C, © minutes
`0p [Paar
`250p
`‘c)
`
`
`Potlife 10 hours (25°C)|2500 hours (°C) 8 hours (25 Data nol available -
`
`
`6
`
`
`3 months 23°C) months after delivery|6 months (25'C)|Unlimited Unlimited
`38x 10°
`Thermal conductivity
`4.5 * 107
`4.0 x 107
`4.0x 10?
`3.2% 107
`32x10?
`30. Implemented [implemented—|Implemented
`
`
`Measures against electric|Implemented Not implemented|Not implemented
`contact failure
`Overall evaluation
`
`
`
`
`
`
`
`a
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`T. Kamai et at: MONET-Compatible Car-mounted Information Terminal
`
`4, Future perspectives
`The question that has been most often asked since
`Navember, 1997 when the MONET ECU was introduced
`to the market is “Will a voice recognition feature be
`available?” In response to this request, we are studying
`voice recognition features which can be used by the user to
`make phone calls and to begin the operation required to
`obtain information whenthe vehicle is traveling.
`Al present, for safety reasons, restrictions are in place
`covering complex button operation. Owing to its ease of
`operation, a MONET ECU using voice recognition
`technology is likely to enjoy more frequently use during
`drives.
`
`As part of recent [TS trends, development effarts will
`be focused on building vehicle emergencyreporting systems
`(for transmitting mayday messages) in Japan. In Europe,
`Daimler Benzhas already begun developing such asystem,
`dubbed TeleAid.
`In October 1997, Daimler Benz began
`operating TeleAid on a trial basis, by having a limited
`number of users try out the systern,
`Jt can be briefly
`described as an emergencyreporting systemusing acellular
`telephone. When an accident occurs, manual operation
`using an emergency switch or the generation of a signal
`caused by the expansionofthe wir bagtriggers the origination
`of a call to the service operation center to notify il of the
`accident.
`
`When a report with a request for rescue fs transmitted
`fromthe operation centerto a police stationin the vicinity,
`it contains information about the vehicle model, vehicle
`identification number, vehicle body color, he driver's
`cellular telephone number, and hospitals in the vicinity. In
`
`addition, the location, time, and other information about
`the accident are automatically reported through data
`communications. Therefore, the request forrescue contains
`accurate informationthatis promptlysent to the destination
`(See Figure 25).
`In Japan,
`the relevant companies and government
`offices have also begun working on building a similar
`system for use in the near future. Compatibility with such
`a sysiem will be indispensable for next-generalion car-
`mounted information terminals.
`
`li is possible at present 10 browse WWWsites on the
`Interne! providing a wealth of informationonthis topic.
`The key to success with car-mounted products will lic
`with the ability to develop a good user interface.
`Webelieve that it will be necessary to build a system
`that allowsdrivers to obtain the desiredinformation and see
`
`it in images formorlisten to it in voice format, via simple
`operation.
`
`5, Conclusion
`Since November, 1997 when the MONET ECU was
`introduced, we have been receiving over 100 inquiries
`about MONETper day. This trend suggests that numerous
`users are interested in MONET.
`
`For further spreading, it
`following:
`- Lowersystemprice
`- Diversified services
`
`is necessary to realize the
`
`-
`
`Improved communications infrastructure
`
`
`
`Voice communications
`
`Request for
`rescue
`
`a
`
`ot)
`i
`
` Addition of
`J S| Vehicle locatione| as well as its track
`detailed
`Emergency
`information
`Emergency
`(on map)
`Pee,
`reporting=J}. service
`operation
`Location,
`center
`
`Date and time; vehicle number; velicle model;
`characteristics,
`vehicle body color, number of passengers;
`{
`among others
`emergencydetails (suchas heart disease); GSM
`number, ambulance/hospltal availability; other
`Data and voice communications
`
`Manual/
`
`automatic
`
`|
`
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`
`T. Kamat etal: MONET-Compatble Car-mounted information Terminal
`
`Atpresent, the terminal costs about 45,000 yen and the
`service charges are 6,000 yen a year (the registrationfee is
`2,500 yen). For most users, this price level seems to be
`generally reasonable although whether a particular user
`wHlbe willing to accept the price level will dependon the
`services available tothe user. However,it will be necessary
`to respondto the market's demand for lower prices as soon
`as possible. What is neededfor this purposeis to increase
`the integration of ICs and combine a greater number of
`components, including CPUs, into a single chip, We have
`made MNCPavailable to all manufacturers concerned so
`
`as to expand the MONET concept beyondToyota, for the
`reason lhat 4 greater number of people recognize what the
`attractive features of MONETare, and because they
`understand the potential for more enjoyable andfulfilling
`driving with MONET,
`The transmission speed of the celular telephoneis the
`key to the improvement of service and the real-time
`availability of information.
`In 1996, DoCoMo began a
`
`packet communications service of which the transmission
`speed is 28.8 kbps, or three times the conventional speed.
`DDI, IDO’s CDMAOne service has a transmission speed
`of 64 kbps, and DoCoMo's W-CDMAservice has a
`transmission speed of 384 kbps. Transmission speedare
`constantly improving.
`New MONET systems will be developed to take
`advantage of such high-speed communications
`infrastructures,
`
`We would like to concludethis paper by remarking
`that MONETis a system which may ever evolve and will
`be includedin standard car-mounted equipment. We will
`keep working on developing new MONETproducts, taking
`the development of this MONETECUas ourstarting point.
`
`References
`
`“High-quality sound synthesis,”
`Takashima et ali
`Fujitsu TEN Technical Report, vol. 15, No. 1 {1997}
`
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`T. Kamal etal: MONET-Compatible Car-mnounted Inforatation Termital
`
`Employed by Fujitsu TEN since
`1977; angaged in developing car
`audio equipment; currently NA
`Project Manager, the Multimedia
`System R & D Depariment, AV.C.
`Products Group,
`
` Takao Kamat
`
`Hayami Ensho
`Employed by Fujitsu TEN since
`1971; engaged In developing
`general-purpose computer
`software, particularly car-mounted
`multimedia software, since 1996;
`currently OC Project Manager, the
`Multimedia Division, A.V.C.
`Products Group,
`
`Ichiro Kuga
`Employed by Fujitsu TEN since
`4983; engaged In developing digital
`application equipment; currently In
`the Muluimedia Engineering
`Department, AWC, Products Group,
`
`Employed by Fujitsu TEN since
`1983; engaged in developing car
`audio equipment; currently In the
`MU Project, Mechantcal Engineering
`Department, A.V.C. Products Group.
`
` Katsuharu Yokoyama
`
`Masato Maruoka
`
`Employed by Fujitsu TEN since
`1986; engaged in developing
`communications equipment;
`currently in the Systems
`Department 1, Multimedia Division,
`ANC. Products Group,
`
`
`
`
`
`
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