System Description [01/2012 - ]

1. Vehicle position tracking methods

   It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map. There are 2 methods to track the current vehicle position: autonomous (dead reckoning) and GPS* (satellite) navigation. Both navigation methods are used in conjunction with each other.

   *: GPS (Global Positioning System)

   Fig 1: Global Positioning System Diagram

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Operation	Description
   Vehicle Position Calculation	The multi-media module receiver assembly calculates the current vehicle position (direction and current position) using the direction deviation signal from the gyro sensor and driving distance signal from the vehicle speed sensor and creates the driving route.
   Map Display Processing	The multi-media module receiver assembly processes the vehicle position data, vehicle driving track and map data from the hard disk drive.
   Map Matching	The map data from the hard disk drive is compared to the vehicle position and driving track data. Then, the vehicle position is matched with the nearest road.
   GPS Correction	The vehicle position is matched to the position measured by the GPS. Then, the GPS measurement position data is compared with the vehicle position and driving track data. If the position is very different, the GPS measurement position is used.
   Distance Correction	The vehicle speed signal includes error caused by tire wear and slippage between the tires and road surface. Distance correction is performed to account for this. The multi-media module receiver assembly automatically offsets the signal to make up for the difference between the distance signal and distance data of the map. The offset is automatically updated.

   Fig 2: View Of Autonomous And GPS Navigation

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   The combination of autonomous and GPS navigation makes it possible to display the vehicle position even when the vehicle is in places where GPS signals cannot be received. When only autonomous navigation is used, however, the mapping accuracy may slightly decrease.

2. Autonomous navigation

   This method determines the relative vehicle position based on the driving track determined by the gyro located in the multi-media module receiver assembly and the vehicle speed signal.

   1. Gyro sensor

      Used to calculate the direction by detecting angular velocity. It is located in the multi-media module receiver assembly.

   2. Vehicle speed signal

      Used to calculate the vehicle driving distance.

3. GPS* navigation (Satellite navigation)

   This method detects the absolute vehicle position using radio waves from GPS satellites.

   *: GPS satellites were launched by the U.S. Department of Defense for military purposes.

   Fig 3: Identifying GPS Satellite Navigation

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Number of Satellites	Measurement	Description
   2 or less	Measurement is impossible	Vehicle position cannot be obtained because the number of satellites is not enough.
   3	2-dimensional measurement is possible	Vehicle position is obtained based on the current longitude and latitude. (This is less precise than 3-dimensional measurement.)
   4	3-dimensional measurement is possible	Vehicle position is obtained based on the current longitude, latitude and altitude.

4. Map matching

   The current driving route is calculated by autonomous navigation (according to the gyro sensor and vehicle speed signal) and GPS navigation. This information is then compared with possible road shapes from the map data in the hard disk drive and the vehicle position is set onto the most appropriate road.

   Fig 4: Identifying Map Matching

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Touch switches are touch-sensitive (interactive) switches operated by touching the screen. When a switch is pressed, the outer film bends in to contact the inner glass at the pressed position. By doing this, the voltage ratio is measured and the pressed position is detected.
   Fig 5: Identifying Touch Switch

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. The DVD player can only play DVD videos that have any of the following marks:
   Fig 6: DVD Identification Marks

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. The following products may not be playable on your player.
   • Video CD
   • DVD+R
   • DVD+RW
   • DVD-RAM
3. Precaution for use of discs
   NOTE:

   • PAL or SECAM color television standard discs cannot be played (only NTSC discs can be played).
   • Keep the discs away from dirt. Be careful not to damage the discs or leave fingerprints on them.
   • Hold discs by the outer edge and center hole with the label side up.
   • Leaving the disc exposed halfway out of the slot for a long time after pressing the disc eject button may cause deformation of the disc, making the disc unusable.
   • Do not use odd-shaped discs because these may cause player malfunctions.
   • Do not use discs whose recording portion is transparent or translucent because they may not be inserted, ejected or played normally.
   • DualDiscs that mate DVD recorded material on one side with CD digital audio material on the other cannot be played.

Fig 7: Identifying "Bluetooth" OUTLINE

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. "Bluetooth" is a trademark owned by Bluetooth SIG, Inc.
2. "Bluetooth" is a wireless connection technology that uses the 2.4 GHz frequency band.

   HINT: 

   The communication performance of "Bluetooth" may vary depending on obstructions or radio wave conditions between communication devices, electromagnetic radiation, communication device sensitivity or antenna capacity.

3. Hands-free function
   1. The "Bluetooth" built-in multi-media module receiver assembly and a "Bluetooth" compatible cellular phone* can be connected using a "Bluetooth" wireless connection. This enables the use of the hands-free function on the cellular phone even if the phone is in a pocket or bag. For this reason, it is not necessary to use a connector or cable to connect the cellular phone.

      *: Some versions of "Bluetooth" compatible cellular phones may not function.

   2. Compatible hands-free devices

      Required "Bluetooth" specifications	Ver. 1.1 or higher (Ver. 2.1+EDR or higher recommended)
      Compatible profiles	HFP (Hands Free Profile) Ver.1.0 or higher (Ver.1.5 or higher recommended)*1 OPP (Object Push Profile) Ver.1.1 or higher*1 PBAP (Phone Book Access Profile) Ver.1.0 or higher*1 MAP (Message Access Profile) Ver.1.0 or higher*2 SPP (Serial Port Profile) Ver.1.1 or higher*3
      Maximum number of hands-free devices that can be registered (including audio devices)	5

      • *1: This profile is necessary when using the hands-free function.
      • *2: This profile is necessary when using the message function.
      • *3: This profile is necessary when using the Apps function.

      HINT: 

      The amount of remaining battery charge displayed on the multi-media module receiver assembly may be different from that of the "Bluetooth" device.

The Radio Broadcast Data System (RBDS) is broadcast through conventional FM radio broadcasts. Information such as song names, traffic information, broadcast station names, etc. can be received.

Satellite Digital Audio Radio Service (SDARS) is a satellite digital radio broadcast provided by Sirius XM Radio Inc. The broadcast (pay-type) is performed through satellites and terrestrial repeater networks. Several unique channels are available, and even if a vehicle changes locations, the same information can be received without breaks. Information such as song names, broadcast station names, etc. can be received. Also, additional services may also be available.

1. Description
   1. XM data broadcast service is a service*1 that allows the vehicle to receive information from the XM radio satellite and links the information to the navigation system. XM data broadcast service permits the driver to use the received information, such as weather information, sports news, fuel price information and stock information on the navigation system multi-display. The equipment for receiving this service is installed as standard.*2

      XM data broadcast service provides the following services: XM NavTraffic, XM NavWeather, XM Fuels Prices, XM Stocks and XM Sports.

      • *1: XM data broadcast service is a service available in the continental U.S., excluding Alaska and Hawaii. In addition, Canada, Mexico and unincorporated territories of the U.S. such as Puerto Rico are not included in the service area.
      • *2: The XM NavTraffic, XM NavWeather and XM Fuel Prices require separate subscriptions to receive their services. XM Stocks and XM Sports are included with the XM Radio subscription.
2. System function

   1. Component	Outline
      Multi-media module receiver assembly	Receives the XM satellite radio information signals from the XM tuner built into the multi-media module receiver assembly (distributed from the broadcast such as content information, stock price information, sports related news and weather information).
      SDARS (Satellite Radio Antenna)	Receives XM satellite radio signal.

3. Service function

   1. Service	Function
      XM NavTraffic	Displays traffic congestion information using icons, arrows and indicators on the navigation map according to the traffic information received via XM satellite radio.
      XM NavWeather	Displays weather information received via XM satellite radio. A warning message is displayed on the screen once every 2 hours. The warning indicator displayed on the screen is updated every 15 minutes. Displays weather forecasts for 3 days when a city icon on the map is pressed or when the city name is selected from the list on the screen.
      XM Stocks	Displays stock price information received via XM satellite radio. Displays up to 10 user registered stock symbols and their price information.
      XM Sports	Displays sports related news received via XM satellite radio. Allows the user to register up to 5 teams.
      XM Fuel Prices	Displays the location of gas stations and fuel prices via XM satellite radio.

Customization of functions can be performed on the multi-display screen. Refer to the owner's manual for further information on customizable items for the navigation system.

HINT: 

• Items available for customization via the navigation system can be performed by using the Techstream.
• Some customize parameters displayed on the Techstream will be displayed on the "Vehicle Customization" screen for the navigation system. Users can customize these items.

1. MOST Network Outline
   Fig 8: MOST Network Outline

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Navigation system components communicate with each other via the MOST network.
   2. The MOST network uses a shielded twisted pair of wires for its communication lines.
   3. The master unit of the MOST network is the multi-media module receiver assembly.
   4. MOST communication lines connect each slave unit centering around the master unit to form a MOST network ring.
   5. The master unit sends a wake-up signal to activate each slave unit connected to the MOST network.

      HINT: 

      If a short or open circuit occurs in the MOST circuit, communication will be interrupted and the system will not operate normally.

2. AVC-LAN Outline
   Fig 9: AVC-LAN Outline Diagram

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Components of the navigation system communicate with each other via the AVC-LAN.
   2. The AVC-LAN uses a twisted pair of wires for its communication lines.
   3. The master unit of the AVC-LAN is the multi-media module receiver assembly.

      HINT: 

      • The multi-media module receiver assembly has the resistance (60 to 80 Ω) necessary for communication.
      • If a short or open circuit occurs in the AVC-LAN circuit, communication is interrupted and the system will not operate normally.

1. The navigation system has a diagnostic function (the result will be displayed on the master unit or the Techstream).