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DTU(GPS)规格书
DTU(GPS)规格书

一、产品用途与功能(Product Purpose & Functions)

1.产品描述(Product Description)

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GFB Product Image
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GFB 是专为两轮电动车及电摩锂电池北斗 GNSS 定位需求设计的智能终端产品。产品采用手提式一体化外观设计,结构紧凑、小巧精美,便于隐藏式安装。
设备内置 4G 通信模块,支持 30–120V DC 宽电压输入,兼容 GPS / BDS / GLONASS / Galileo 等多模卫星定位系统,具备良好的搜星能力和较高的定位精度。

GFB 可通过 UART 接口与锂电池 BMS 保护板通信,实时采集电池运行状态及关键数据并上传至平台。产品具备良好的防水与隐蔽性能,可广泛应用于定位追踪、防盗、行程回放、震动报警、远程断电以及锂电池 BMS 数据传输等场景,安装简便,装配于铁箱电池外观协调、美观且实用。

GFB is a smart GNSS tracking terminal designed for lithium batteries used in two-wheel electric vehicles and electric motorcycles. It features a compact handle-type integrated design that enables concealed installation.
The device integrates a 4G communication module and supports a wide input voltage range of 30–120V DC. It is compatible with GPS, BDS, GLONASS, and Galileo multi-constellation positioning systems, providing fast satellite acquisition and high positioning accuracy.

Through the UART interface, GFB communicates with the lithium battery BMS to collect battery status and operational data, which are uploaded to the cloud platform in real time. With excellent waterproof performance and concealment, the device supports tracking, anti-theft protection, trip playback, vibration alarms, remote power-off, and lithium battery BMS data transmission, making it easy to install and suitable for metal battery enclosures.

2.产品特点(Product Features)

  • 支持 BDS / GPS / Galileo / GLONASS / QZSS 多模卫星定位
    Supports multi-constellation GNSS positioning including BDS, GPS, Galileo, GLONASS, and QZSS.

  • 支持 4G LTE 全网通(通信模组可根据地区选型)
    Supports 4G LTE full network coverage; communication module selection varies by region.

  • 支持 30–120V DC 宽电压输入
    Supports wide voltage input ranging from 30 to 120V DC.

  • 支持 OTA 在线远程升级及远程参数配置
    Supports OTA firmware upgrades and remote parameter configuration.

  • 支持短信告警及 APP 推送通知,便于运维管理
    Supports SMS alarms and APP notifications for real-time monitoring and maintenance.

  • 支持铁塔协议,采用双 IP 方式上报定位及状态数据
    Supports China Tower protocol with dual-IP reporting of location and status data.

  • 内置加速度计,支持震动检测与防盗报警
    Built-in accelerometer for vibration detection and anti-theft alerts.

  • 产品体积小巧,便于安装和隐藏部署
    Compact design for easy installation and concealed deployment.

3.应用领域(Application Scenarios)

本产品适用于以下应用场景:
The product is suitable for the following application scenarios:

  • 两轮 / 三轮电动车
    Two-wheel and three-wheel electric vehicles

  • 电动摩托车
    Electric motorcycles

  • 租赁锂电池及换电系统管理
    Rental and battery-swapping lithium battery management systems

二、技术参数(Technical Specifications)

1.电气特性(Electrical Characteristics)

项目 Item 描述 Description
工作电压范围 Operating Voltage Range 30–120V DC
工作电流 Operating Current 15 mA(平均值 average @30V)
待机电流 Standby Current —

2.定位特性(GNSS Performance)

项目 Item 描述 Description
GNSS 接收频点 GNSS Frequency Bands L1 / B1I / B1C
冷启动时间 Cold Start Time ≤ 45 s
热启动时间 Hot Start Time ≤ 3 s
定位精度 Positioning Accuracy ≤10 m(开阔环境 open area) / ≤5 m(完全空旷 fully open area)
最大速度 Maximum Speed 500 m/s
最大高度 Maximum Altitude 18,000 m

3.通信特性(Communication Characteristics)

项目 Item 描述 Description
4G 支持 4G Support LTE Cat-1
SIM 卡 SIM Card Nano-SIM(内置)或 eSIM
Built-in Nano-SIM or embedded eSIM

通信频段(中国版)(Frequency Bands – CN)

  • FDD:B1 / B3 / B5 / B8
  • TDD:B34 / B38 / B39 / B40 / B41

通信频段(欧洲版)(Frequency Bands – EU)

  • FDD:B1 / B3 / B5 / B7 / B8 / B20 / B28

4.外部接口(External Interfaces)

接口 Interface 描述 Description
UART 支持,用于 BMS 通信
Supported, used for communication with the BMS

5.外形规格(Physical Specifications)

项目 Item 描述 Description
外壳尺寸 Enclosure Dimensions 118 × 60 × 21 mm

6.工作环境(Environmental Conditions)

项目 Item 描述 Description
工作温度 Operating Temperature -35 ℃ ~ +85 ℃
存储温度 Storage Temperature -40 ℃ ~ +85 ℃

三、射频参数(RF Specifications)

1.EG800AK-CN 工作频段(EG800AK-CN Frequency Bands)

模式 Mode 频段 Band 上行频率范围 Uplink (MHz) 下行频率范围 Downlink (MHz)
FDD B1 1920–1980 2110–2170
FDD B3 1710–1785 1805–1880
FDD B5 824–849 869–894
FDD B8 880–915 925–960
TDD B34 2010–2025 2010–2025
TDD B38 2570–2620 2570–2620
TDD B39 1880–1920 1880–1920
TDD B40 2300–2400 2300–2400
TDD B41 2535–2675 2535–2675

2.EG800AK-EU 工作频段(EG800AK-EU Frequency Bands)

模式 Mode 频段 Band 上行频率范围 Uplink (MHz) 下行频率范围 Downlink (MHz)
FDD B1 1920–1980 2110–2170
FDD B3 1710–1785 1805–1880
FDD B5 824–849 869–894
FDD B7 2500–2570 2620–2690
FDD B8 880–915 925–960
FDD B20 832–862 791–821
FDD B28 703–748 758–803

四、尺寸与接口说明(Dimensions & Interfaces)

1.手提外壳尺寸(Handle Enclosure Dimensions)

Handle Dimensions

2.GPS 提手 MLX-4Pin 接口定义(GPS Handle MLX-4Pin Connector)

引脚 Pin 定义 Definition
GND 地 Ground
TX 串口发送 UART Transmit
RX 串口接收 UART Receive
V 电源输入 Power Input

五、指示灯状态说明(LED Indicator Description)

LED Indicators
指示灯 Indicator 工作状态 Working Status LED 状态 LED Status 触发方式 Trigger Method
第一个灯 First LED 4G 联网正常
4G network connected
常亮 Solid on 长按指纹键 ≥5 s
Press fingerprint button ≥5 s
第二个灯 Second LED 平台连接正常
Platform connected
常亮 Solid on 长按指纹键 ≥5 s
第三个灯 Third LED GPS 信号正常
GPS signal acquired
常亮 Solid on 长按指纹键 ≥5 s
第四个灯 Fourth LED BMS 连接正常
BMS connected
常亮 Solid on 长按指纹键 ≥5 s
第五个灯 Fifth LED 无实际意义
No functional meaning
闪烁 Blinking 长按指纹键 ≥5 s
电量显示 Battery Level 电池电量显示
Battery capacity indication
常亮 Solid on 触摸指纹键
Touch fingerprint button

Each LED segment represents 0–20% battery capacity, displayed cumulatively from left to right.

六、订购型号说明(Ordering Information)

型号 Model 说明 Description
GFB0-标准 GFB0-Standard 中国版本 CN Version
GFB0-EU 欧洲版本 EU Version

七、手提安装说明(Handle Installation Instructions)

1.根据设计图纸,在电池箱对应位置进行激光切割开孔。
Perform laser cutting on the battery enclosure according to the specified dimensions and orientation shown in the drawings.
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2.将 4 个 D8 × φ1.5 密封圈分别套入 4 个螺丝柱底部壳体凹槽中。
Install four D8 × φ1.5 sealing rings into the grooves at the base of the four screw posts.

3.将 GPS 提手组件的螺丝柱及线束穿过电池箱对应孔位。
Insert the screw posts and wiring harness of the GPS handle assembly through the corresponding holes in the battery enclosure.

4.在 4 个螺丝柱上安装 M5 尼龙防松带锯齿螺母,预紧扭矩为 5.0–5.5 N·m,避免扭矩不足或过度拧紧。
Secure four M5 nylon self-locking serrated nuts onto the screw posts with a pre-tightening torque of 5.0–5.5 N·m.
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5.在电池箱螺丝孔位及穿线孔位进行密封处理。
Apply sealing treatment to the screw holes and cable entry points of the battery enclosure.
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6.完成安装。
Installation completed.