文档介绍：NAVIGATION – NAVIGATION SYSTEM NS–1 NS NAVIGATION SYSTEM PARTS LOCATION RADIO AND NAVIGATION BINATION METER ENGINE ROOM J/B AND R/B INSTRUMENT PANEL J/B ANTENNA ANTENNA AMPLIFIER GPS ANTENNA STEREO JACK ADAPTER PONENT AMPLIFIER MICROPHONE SPIRAL CABLE STEERING PAD SWITCH REAR SIDE SPEAKER FRONT SIDE SPEAKER FRONT SIDE SPEAKER FRONT SIDE SPEAKER -FRONT NO. 2 SPEAKER LH -FRONT NO. 2 SPEAKER RH -REAR SPEAKER -FRONT NO. 1 SPEAKER -TAIL RELAY -PANEL FUSE -RADIO NO. 2 FUSE -ACC RELAY -RADIO NO. 1 FUSE NS–2 NAVIGATION – NAVIGATION SYSTEM NS SYSTEM DIAGRAM Speakers Stereo Component Amplifier Steering Pad Switch Switch bination Meter Vehicle Speed Signal Park/Neutral Position Switch Reverse Signal Microphone Assembly Microphone Voice Signal Stereo Jack Adapter External Device Sound Signal Radio Antenna GPS Antenna Radio and Navigation Assembly : Sound Signal : AVC-LAN Antenna Amplifier NAVIGATION – NAVIGATION SYSTEM NS–3 NS SYSTEM DESCRIPTION 1. Radio and navigation assembly outline (a) Conventionally, 2 separate devices, a "radio and display" and a "navigation ECU" are used. This model has adopted a new type, combining these devices into a single unit. Radio and Display Navigation ECU Radio and Navigation Assembly NS–4 NAVIGATION – NAVIGATION SYSTEM NS 2. Navigation system outline (a) 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) GPS satellite Location by GPS navigation GPS Antenna GPS Antenna Receive satellite radio wave Vehicle Speed Sensor Vehicle Speed Sensor Detect vehicle running distance Navigation Gyro Sensor ECU Location by autonomous navigation Detect the measurement position GPS correction Radio and Navigation Assembly