原标题：行车记录仪解决方案

　　智能服务终端与道路运输车辆卫星定位系统车载终端

　　1. 简介：

　　行车记录仪能够记录、存储、显示和打印车辆行驶速度、时间、里程以及有关车辆行驶安全的其他状态信息，包括刹车灯、方向灯、大灯等。利用该装置能够遏制车辆超速、超时驾驶，保证行车安全，同时有助于企业科学管理车辆使用情况，提高企业效益。

　　智能服务终端主机内置GPRS或CDMA通信模块、GPS或北斗模块，可根据用户的需要选配。终端主机不内嵌调度显示屏和打印机，可以隐蔽安装，使用方便。智能服务终端(以下简称终端)符合中华人民共和国交通运输行业标准《JT/T 794—2011道路运输车辆卫星定位系统车载终端技术要求》，同时具有GNSS卫星定位监控和汽车行驶记录仪功能。智能服务终端方案用到的微控制器为意法半导体：STM32F205ZET6

　　道路运输车辆卫星定位系统车载终端，是一款由GPS/GPRS车载定位和汽车行驶车载终端两部分组成的一体化设备，同时具有GPS卫星定位和汽车行驶车载终端的功能。道路运输车辆卫星定位系统车载终端方案选用MCU是带网络功能：STM32F107VCT6

　　2. 产品功能：

　　• 行驶记录功能：行驶速度记录、事故疑点记录、里程记录、打印信息输出功能

　　• 信息采集：驾驶员身份识别、电子运单、车辆CAN总线数据、车辆载货状态、图像信息、音频信息

　　• 警示：紧急报警、区域提醒、超速提醒、超时驾驶提醒、蓄电池欠压提醒、断电提醒、外设故障提醒

　　• 定位功能：定时定位、定时跟踪、定时上报、定距上报、盲区补报、设备自检功能

　　• 终端管理：终端注册/注销、固件更新、终端控制

　　• 监听

　　• 休眠

　　• 人机相互

　　• 多中心接入

　　• 电召功能

　　• 服务评价功能

　　• 广告发布功能

　　• 计价器数据采集功能

　　• 智能顶灯功能

　　• 录音功能

　　3. 产品展示：

　　4. 标准配置：

　　• 车载终端/智能服务终端

　　• GPS天线或GPS/北斗天线

　　• GSM天线或CDMA天线

　　• 连接线束

　　• 麦克风

　　5. MCU系统框架图：

　　STM32F205ZET6具体详情参考 Datasheet：www.st.com/internet/mcu/product/245090.jsp

　　STM32F107VCT6具体详情参考 Datasheet：www.st.com/internet/mcu/product/221020.jsp

　　6. 应用范围：

　　客运车辆、货物运输车辆、计程车、危险品运输车辆……

　　【STM32F205ZE】

　　High-performance Arm Cortex-M3 MCU with 512 Kbytes Flash, 120 MHz CPU, ART Accelerator

　　The STM32F20x family is based on the high-performance Arm® Cortex®-M3 32-bit RISC core operating at a frequency of up to 120 MHz. The family incorporates high-speed embedded memories (Flash memory up to 1 Mbyte, up to 128 Kbytes of system SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, three AHB buses and a 32-bit multi-AHB bus matrix.

　　The devices also feature an adaptive real-time memory accelerator (ART Accelerator™) that allows to achieve a performance equivalent to 0 wait state program execution from Flash memory at a CPU frequency up to 120 MHz. This performance has been validated using the CoreMark® benchmark.

　　All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers. a true number random generator (RNG). They also feature standard and advanced communication interfaces. New advanced peripherals include an SDIO, an enhanced flexible static memory control (FSMC) interface (for devices offered in packages of 100 pins and more), and a camera interface for CMOS sensors. The devices also feature standard peripherals.

　　The STM32F205xx and STM32F207xx devices operate in the –40 to +105 °C temperature range from a 1.8 V to 3.6 V power supply. On devices in WLCSP64+2 package, if IRROFF is set to VDD, the supply voltage can drop to 1.7 V when the device operates in the 0 to 70 °C temperature range using an external power supply supervisor.

　　A comprehensive set of power-saving modes enables the design of low-power applications.

　　STM32F205xx and STM32F207xx devices are offered in various packages, ranging from 64 to 176 pins. The set of included peripherals changes with the chosen device.These features make the STM32F205xx and STM32F207xx microcontroller family suitable for a wide range of applications.

　　KEY FEATURES

　　Core: Arm® 32-bit Cortex®-M3 CPU (120 MHz max) with Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution performance from Flash memory, MPU, 150 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1)

　　Memories

　　Up to 1 Mbyte of Flash memory

　　512 bytes of OTP memory

　　Up to 128 + 4 Kbytes of SRAM

　　Flexible static memory controller that supports Compact Flash, SRAM, PSRAM, NOR and NAND memories

　　LCD parallel interface, 8080/6800 modes

　　Clock, reset and supply management

　　From 1.8 to 3.6 V application supply + I/Os

　　POR, PDR, PVD and BOR

　　4 to 26 MHz crystal oscillator

　　Internal 16 MHz factory-trimmed RC

　　32 kHz oscillator for RTC with calibration

　　Internal 32 kHz RC with calibration

　　Low-power modes

　　Sleep, Stop and Standby modes

　　VBAT supply for RTC, 20 × 32 bit backup registers, and optional 4 Kbytes backup SRAM

　　3 × 12-bit, 0.5 μs ADCs with up to 24 channels and up to 6 MSPS in triple interleaved mode

　　2 × 12-bit D/A converters

　　General-purpose DMA: 16-stream controller with centralized FIFOs and burst support

　　Up to 17 timers

　　Up to twelve 16-bit and two 32-bit timers, up to 120 MHz, each with up to four IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

　　Debug mode: Serial wire debug (SWD), JTAG, and Cortex®-M3 Embedded Trace Macrocell™

　　Up to 140 I/O ports with interrupt capability:

　　Up to 136 fast I/Os up to 60 MHz

　　Up to 138 5 V-tolerant I/Os

　　Up to 15 communication interfaces

　　Up to three I2C interfaces (SMBus/PMBus)

　　Up to four USARTs and two UARTs (7.5 Mbit/s, ISO 7816 interface, LIN, IrDA, modem control)

　　Up to three SPIs (30 Mbit/s), two with muxed I2S to achieve audio class accuracy via audio PLL or external PLL

　　2 × CAN interfaces (2.0B Active)

　　SDIO interface

　　Advanced connectivity

　　USB 2.0 full-speed device/host/OTG controller with on-chip PHY

　　USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI

　　10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII

　　8- to 14-bit parallel camera interface (48 Mbyte/s max.)

　　CRC calculation unit

　　96-bit unique ID

　　【STM32F107VCT6】

　　Mainstream Connectivity line, ARM Cortex-M3 MCU with 256 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG

　　The STM32F105xx and STM32F107xx connectivity line family incorporates the high-performance ARM® Cortex®-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories (Flash memory up to 256 Kbytes and SRAM 64 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer two 12-bit ADCs, four general-purpose 16-bit timers plus a PWM timer, as well as standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2Ss, five USARTs, an USB OTG FS and two CANs. Ethernet is available on the STM32F107xx only.

　　The STM32F105xx and STM32F107xx connectivity line family operates in the –40 to +105 °C temperature range, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.

　　The STM32F105xx and STM32F107xx connectivity line family offers devices in three different package types: from 64 pins to 100 pins. Depending on the device chosen, different sets of peripherals are included, the description below gives an overview of the complete range of peripherals proposed in this family.

　　These features make the STM32F105xx and STM32F107xx connectivity line microcontroller family suitable for a wide range of applications such as motor drives and application control, medical and handheld equipment, industrial applications, PLCs, inverters, printers, and scanners, alarm systems, video intercom, HVAC and home audio equipment.

　　Figure 1 shows the general block diagram of the device family.

　　KEY FEATURES

　　Core: ARM® 32-bit Cortex®-M3 CPU

　　72 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access

　　Single-cycle multiplication and hardware division

　　Memories

　　64 to 256 Kbytes of Flash memory

　　64 Kbytes of general-purpose SRAM

　　Clock, reset and supply management

　　2.0 to 3.6 V application supply and I/Os

　　POR, PDR, and programmable voltage detector (PVD)

　　3-to-25 MHz crystal oscillator

　　Internal 8 MHz factory-trimmed RC

　　Internal 40 kHz RC with calibration

　　32 kHz oscillator for RTC with calibration

　　Low power

　　Sleep, Stop and Standby modes

　　VBAT supply for RTC and backup registers

　　2 × 12-bit, 1 μs A/D converters (16 channels)

　　Conversion range: 0 to 3.6 V

　　Sample and hold capability

　　Temperature sensor

　　up to 2 MSPS in interleaved mode

　　2 × 12-bit D/A converters

　　DMA: 12-channel DMA controller

　　Supported peripherals: timers, ADCs, DAC, I2Ss, SPIs, I2Cs and USARTs

　　Debug mode

　　Serial wire debug (SWD) & JTAG interfaces

　　Cortex®-M3 Embedded Trace Macrocell™

　　Up to 80 fast I/O ports

　　51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant

　　CRC calculation unit, 96-bit unique ID

　　Up to 10 timers with pinout remap capability

　　Up to four 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input

　　1 × 16-bit motor control PWM timer with dead-time generation and emergency stop

　　2 × watchdog timers (Independent and Window)

　　SysTick timer: a 24-bit downcounter

　　2 × 16-bit basic timers to drive the DAC

　　Up to 14 communication interfaces with pinout remap capability

　　Up to 2 × I2C interfaces (SMBus/PMBus)

　　Up to 5 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)

　　Up to 3 SPIs (18 Mbit/s), 2 with a multiplexed I2S interface that offers audio class accuracy via advanced PLL schemes

　　2 × CAN interfaces (2.0B Active) with 512 bytes of dedicated SRAM

　　USB 2.0 full-speed device/host/OTG controller with on-chip PHY that supports HNP/SRP/ID with 1.25 Kbytes of dedicated SRAM

　　10/100 Ethernet MAC with dedicated DMA and SRAM (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages