Digital Vehicle Key ES301-600TC

Product Features

The ES301-600TC Digital Key Terminal is specifically designed for car sharing, rental, and intelligent fleet management. It integrates secure control, convenient management, and reliable application, offering the following core features:

(1) Effortless Convenience – Your Phone Is the Car Key  
- Full-function remote control: Lock/unlock, open the boot, find the car, and more via mobile APP/mini-program – completely eliminating the need for a physical key.  
- Key sharing and fine-grained management: Owners or administrators can flexibly generate and share temporary keys with precise user and validity period settings – perfectly suited for vehicle rental, official fleet use, and car borrowing among family and friends.  
- Versatile adaptation optimised for commercial vehicles: Breaking through the common 4‑button solution, it exclusively supports 6‑channel button control. In addition to basic vehicle functions, it independently controls the left and right electric sliding doors on MPVs – addressing a key pain point in digital upgrades for premium MPVs, making it the preferred choice for rental fleets and business travel companies.

(2) Uncompromising Security – Control Even Offline  
- Financial‑grade communication encryption: All transmitted data is encrypted with AES high‑strength algorithms, with keys centrally managed and periodically rotated by the platform – eliminating eavesdropping and tampering at the source.  
- Millisecond‑level offline authentication: The terminal embeds a whitelist/blacklist. Even when the user's phone has no network, the terminal verifies identity instantly over Bluetooth and rejects unauthorised operations immediately – ensuring “offline but still in control” security.  
- Comprehensive security fencing: In addition to active alerts such as geo‑fencing and reckless driving, it provides hardware‑level alarms including anti‑tamper, anti‑pull‑out for the key, and power‑cut detection – building a full‑spectrum security system from cloud to vehicle.

(3) Stable and Reliable – Adaptable to All Scenarios  
- Dual‑mode connectivity for smooth operation: Supports both 4G and Bluetooth 5.2 dual‑channel control. Remote control via network when online, and Bluetooth proximity control when offline – ensuring controllability even in weak‑signal areas such as basements and mountainous regions.  
- Industrial‑grade rugged design: Accepts DC 8–90 V wide‑voltage input, operates from ‑30 °C to +75 °C, with flame‑retardant and moisture‑proof properties – reliably coping with vehicle start‑up voltage surges and harsh environments.  
- Intelligent power saving and self‑maintenance: Automatically enters sleep mode when the vehicle is stationary; supports OTA remote wireless upgrades, so feature updates and bug fixes require no return to factory – greatly reducing operational and maintenance costs.

(4) Smart Management – Data‑Driven Decision Making  
- Full visibility of vehicle status (subject to vehicle compatibility): Accurately collects vehicle location, mileage, battery/fuel level, driving behaviour (hard acceleration/braking), and other data.  
- Visual data dashboards: Automatically generates multi‑dimensional reports covering driving statistics, alarm logs, parking hotspots, etc. – providing precise data support for fleet dispatching, cost accounting, and safety assessment.

Product Functions

(1) Core Vehicle Control Functions:  
Reliably emulates the original vehicle key signal via Bluetooth or 4G to achieve vehicle control.  
- Door control: Lock, unlock.  
- Convenience functions: Open boot, find car (horn and flash lights).  
- Sliding door control: Independently open and close the left and right automatic sliding doors.  
- Start authorisation: As part of the keyless start system, authorised users can start the vehicle normally from inside.

(2) Secure Two‑Way Communication and Offline Authentication:  
- Encrypted communication: All transmitted data is encrypted with AES high‑strength algorithms, ensuring data security and preventing eavesdropping and replay attacks.  
- Centralised key management: Encryption keys are generated, distributed, and managed centrally by the platform, with periodic rotation – fundamentally securing the communication link.  
- Offline authorisation verification: The terminal stores locally a whitelist of digital keys (authorisation information) issued by the platform. Even when the user's phone is offline, upon a Bluetooth control request, the terminal instantly verifies user permissions against the local whitelist and rejects unauthorised or expired users in real time – achieving “offline but still in control” security.

(3) Multi‑Mode Positioning and Communication:  
- Positioning: Supports GPS+BeiDou multi‑constellation fusion, standalone BeiDou, Wi‑Fi positioning, and LBS (cell tower positioning), with priority on GPS+BeiDou fusion for accuracy.  
- Data communication: Uses a 4G module covering mainstream domestic LTE FDD/TDD bands to ensure network connectivity.  
- Local connectivity: Supports Bluetooth BLE5.2 for direct interconnection with mobile phones, enabling Bluetooth proximity control and data exchange without a network.

(4) Comprehensive Vehicle Status Monitoring and Data Acquisition:  
- Vehicle data acquisition (subject to vehicle compatibility): Collects dynamic vehicle data via CAN bus, including but not limited to speed, engine RPM, total mileage, trip mileage, remaining fuel/battery level, battery voltage, coolant temperature, etc.  
- Driving behaviour analysis: Detects and reports harsh acceleration, harsh braking, sharp turns, and other poor driving behaviours to assist fleet safety management.  
- Statistical reports: Automatically generates reports on driving mileage, alarm records, driving periods, parking locations, and more.

(5) Multi‑Layer Security Protection and Alarm System:  
- Active protection alarms:  
  - Unauthorised driving alarm: Triggered when the vehicle moves or starts without a valid digital key.  
  - Speeding alarm: Triggered when speed exceeds a preset threshold.  
  - Zone entry/exit alarm: Triggered when the vehicle enters or leaves a geo‑fenced area.  
- Terminal and power supply security alarms:  
  - Anti‑tamper alarm: Triggered when the terminal body is illegally removed or abnormal vibration is detected.  
  - Key anti‑pull‑out alarm: Triggered when the original physical key connected to the terminal is unplugged or its wiring is cut.  
  - Cable‑cut / power‑off alarm: When the main power line is cut or vehicle battery is disconnected, the terminal uses its backup battery to report immediately.  
  - Plug‑out alarm: Triggered when the connector of the terminal wiring harness is abnormally unplugged.  
  - Low voltage alarm: Monitors vehicle battery voltage and warns when it falls below a safe threshold to prevent failure to start.  
  - Continuous vibration alarm: Triggered when the vehicle experiences abnormal sustained vibration (e.g., collision, glass breakage).

(6) Remote Vehicle Control and Security Assurance:  
- Remote fuel/power cut: Under safe conditions, the platform can send commands to cut fuel and power (requires additional module), forcing the vehicle to stop and preventing restart.  
- Blind‑area data retransmission: When the terminal is in a signal dead zone, it stores positioning and alarm data locally and retransmits immediately after network recovery, ensuring continuous tracking.  
- Corner compensation: Uses algorithms to intelligently compensate the driving path when the vehicle turns or changes direction significantly, improving trajectory accuracy.

(7) High Reliability and Maintainability Design:  
- OTA remote upgrade: Supports remote wireless firmware updates via backend commands, facilitating feature iteration and bug fixing with stable and reliable upgrade processes.  
- Intelligent power‑saving mode: Automatically enters low‑power sleep after the vehicle remains stationary for a set time; wakes instantly upon vibration or movement – balancing functionality and endurance.  
- Wide voltage operation: Accepts DC 8 V ~ 90 V input, adapting to voltage fluctuations during vehicle start and operation with strong stability.  
- Industrial‑grade protection: Flame‑retardant, wide operating temperature range (‑30 °C ~ +75 °C), suitable for harsh in‑vehicle environments.

Specifications

• 4G Bands: LTE FDD: B1/B3/B5/B8; LTE TDD: B34/B38/B39/B40/B41

• 4G Data Rates: LTE FDD: up to 10 Mbps (DL) / up to 5 Mbps (UL); LTE TDD: up to 9.010 Mbps (DL) / up to 3.096 Mbps (UL)

• Positioning: Supported systems: GPS L1C/A, BeiDou B1I/B1C, QZSS L1 multi‑system concurrent reception; Cold start time: ≤ 32 s (open‑sky typical), ≤ 45 s (average); Hot start time: ≤ 1 s (open‑sky); Tracking sensitivity: ‑161 dBm

• External Interfaces: CAN, ACC ignition detection

• Bluetooth: Supports BLE5.2, supports BLE 1M/2M bit coding

• OTA Remote Upgrade: Supports OTA remote upgrade, upgrade time ≤ 5 minutes

• Operating Voltage: DC 8 ~ DC 90 V

• Operating Current: Average current ≤ 50 mA

• Standby Power Consumption: Bluetooth + 4G mode ≤ 8 mA; Bluetooth‑only mode ≤ 4 mA

• Operating Temperature: ‑30 ℃ ~ +75 ℃

• Storage Temperature: ‑45 ℃ ~ +85 ℃

• Humidity: 5% ~ 95% (non‑condensing)

• Flame Retardance: Supports flame retardance, complies with GB4943.1‑2022 standard

• Backup Battery: Rechargeable battery, 3.6 V, 110 mAh; supports continued device operation for ≥ 1 hour after main power disconnection

• Dimensions: 143 (L) × 52 (W) × 21 (H) mm

• Weight: 88 g

• Colour: Black