Facility standard

1.The product technology complies with the relevant provisions of the "Radio Disturbance Limits and Measurement Methods for Information Technology Equipment";

2.The vehicle hardware equipment is small in size, easy to assemble and has strong anti-interference, anti-bumping and anti-strike ability;

3.High temperature/low temperature: The vehicle hardware can work stably in the environment of -30 ° C to 70 ° C (cockpit);

4.Data storage: The built-in large-capacity memory chip of the vehicle hardware supports data storage under offline conditions;

5.Anti-disassembly: The installation of the vehicle hardware has been professionally designed to ensure that the general personnel cannot disassemble at will;

6.Communication: The vehicle hardware adopts TCP communication mode to ensure the accuracy of real-time receiving, processing and output of information, and provides a supporting SIM card;

7.Support online and remote upgrades, support online and remote configuration of product parameters;

8.Circuit design: The vehicle hardware is equipped with an external charging circuit. After the power is turned off, the power failure alarm is uploaded, and the built-in backup battery is supported. After the power is cut off, the device can work continuously for more than 5 minutes.

9.It has power-saving measures, and the normal mode refresh interval is short when moving, and the power-saving mode refresh interval is long when parked;

10.Meet the national standard GB-T32960.X-2016- electric vehicle remote service and management system technical specifications.

11.The vehicle terminal is a platform solution and the hardware supports expansion. The specific configuration is shown in (Table 1).

• 车载终端为平台化方案，硬件支持扩展，具体配置如（表1）所示。

（表1）

注：● Standard   ○  Optional

Communication module

1.The communication module supports China Mobile, China Unicom and China Telecom.

2.The terminal system is planned to adopt 4G network standard and needs to support 4G (TD-LTE, FDD LTE), 3G (TD-SCDMA, WCDMA), CDMA2000, 2G (GSM) standards.

3.The communication module can be connected to the service platform through the 2G/3G/4G data channel and the short message channel, and the communication protocol supports the application layer for encryption;

4.The external antenna interface uses a car-level Fakra interface.

Built-in battery

1.The battery is a rechargeable battery with a service life of more than five years and meets the requirements of the car.

2.The terminal supports external DC power supply and supports internal battery power. When the external power supply is cut off, the built-in battery automatically supplies power seamlessly, and automatically switches to the external power supply after the external power supply returns to normal, and automatically charges the internal battery. The backup battery can ensure that the terminal works continuously for more than 5 minutes and has battery power monitoring function.

1. The built-in battery has a switching strategy circuit, and the terminal can ensure that the built-in battery fails and the external power supply can still work normally.

CAN communication

1.As a node of the vehicle CAN network, the terminal has the function of waking up the vehicle CAN network.

2.The terminal is connected to the CAN bus in the car and supports two CANs at the same time.

Positioning module

1.     Relying on different implementation methods, the terminal is equipped with GPS and Beidou antenna to support the function of obtaining the position of the vehicle. The terminal can be equipped with GPS/Beidou multimode antenna.

2.     See the parameter requirements (Table 2)

1.The communication module supports China Mobile, China Unicom and China Telecom.

2.The terminal system is planned to adopt 4G network standard and needs to support 4G (TD-LTE, FDD LTE), 3G (TD-SCDMA, WCDMA), CDMA2000, 2G (GSM) standards.

3.The communication module can be connected to the service platform through the 2G/3G/4G data channel and the short message channel, and the communication protocol supports the application layer for encryption;

4.The external antenna interface uses a car-level Fakra interface.

Built-in battery

1.The battery is a rechargeable battery with a service life of more than five years and meets the requirements of the car.

2.The terminal supports external DC power supply and supports internal battery power. When the external power supply is cut off, the built-in battery automatically supplies power seamlessly, and automatically switches to the external power supply after the external power supply returns to normal, and automatically charges the internal battery. The backup battery can ensure that the terminal works continuously for more than 5 minutes and has battery power monitoring function.

1. The built-in battery has a switching strategy circuit, and the terminal can ensure that the built-in battery fails and the external power supply can still work normally.

CAN communication

1.As a node of the vehicle CAN network, the terminal has the function of waking up the vehicle CAN network.

2.The terminal is connected to the CAN bus in the car and supports two CANs at the same time.

Positioning module

1.     Relying on different implementation methods, the terminal is equipped with GPS and Beidou antenna to support the function of obtaining the position of the vehicle. The terminal can be equipped with GPS/Beidou multimode antenna.

2.     See the parameter requirements (Table 2)

（表2）

 USB interface (optional)

The terminal needs to provide a USB interface to other multimedia devices in the car so that it can connect to the network through the module. Terminals and other in-car multimedia devices can simultaneously connect to the data channel.

Storage performance

The system memory must be guaranteed to be in the maximum computing state, the system usage capacity is not more than 60%, and the flash memory support life is greater than 10 years.

SIM card chip

The SIM card chip needs to support different communication standards and has an online brush writing function.

Antenna

1.     External 4G dual communication antenna with short circuit and open circuit self-test function;

2.     Built-in backup communication antenna, when the external 4G antenna falls off, it automatically switches to the built-in antenna, basically ensuring that the communication signal is not interrupted;

3.     External GPS/Beidou antenna with short circuit and open circuit self-test function;

Harness

Use car gauge wire harness.

Connector

Use car gauge connector (Model: TE Tyco 1318384-2 40pin).

Electrical performance specifications of vehicle terminals

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• 核心器件