Best ADAS and DMS Dash Cam for Trucks
ADAS and DMS Dash Cam Information
(I) Product Overview
YUWEI's 4G Dash Cam, model V5, integrates high-definition video recording capabilities and runs on the Linux system. It supports up to 4 camera inputs, real-time audio and video recording, dual TF card storage, global 4G network real-time video transmission, and BDS/GPS dual-mode positioning. Equipped with active safety algorithms (applied to ADAS, DMS and other functions), it is widely used in video monitoring for ride-hailing vehicles, taxis, urban distribution logistics vehicles and official vehicles. It can meet diverse needs such as vehicle monitoring and management, driving safety assurance, and driving behavior standardization.
(II) Core Features
① Positioning and Communication: Built-in positioning module and antenna, supporting GPS/BDS dual-mode positioning. Built-in communication module and antenna, supporting global 4G communication and SMS command functions.
② Video Recording: Features ultra-high-definition real-time recording. Integrates 1 channel of 1080P HD camera and can connect 3 external channels of 720P HD cameras, supporting up to 4 channels of video capture. It can clearly capture front-of-vehicle images, the status of front and rear passengers in the vehicle, and the driver.
③ Storage Capacity: Supports up to 2 TF cards with 2TB capacity each for video storage. Adopts cyclic storage mode and special encrypted file format. Videos can be overlaid with information such as vehicle brand, location, longitude and latitude, speed, time, and channel number.
④ Intelligent Functions: Supports face recognition (including driver face recognition check-in), mask-off recognition, and in-vehicle passenger counting. Equipped with 1 USB interface for driving record export.
⑤ Remote Control and Interaction: Supports OTA remote upgrade and WeChat Mini Program remote debugging (parameter setting and query). Features two-way intercom function (G711A audio format) and TTS text-to-speech broadcast function.
ADAS and DMS Dash Cam Usage Notes
(I) Safety Warnings
① The dangerous driving alerts issued by active safety AI devices (ADAS, DMS, etc.) are only voice prompts and cannot replace the driver's driving decisions and operations. The alert function is developed based on relevant technologies and cannot guarantee 100% recognition accuracy. It is applicable to most scenarios such as daytime, nighttime, tunnels, and rainy days (excluding extreme weather) and supports ADAS obstruction fault prompts.
② The device is only used to improve driving situational awareness. During driving, it is strictly prohibited to view device storage information or change settings. Operations can only be performed when the vehicle is parked at a safe location in compliance with local regulations to avoid accidents caused by distracted attention to the device display.
③ During installation, do not block the driver's view, interfere with vehicle control components such as the steering wheel and pedals, place it in front of or above the airbag, or place it unsecured on the instrument panel.
④ Some countries or regions prohibit or restrict the device's video playback function visible to the driver. Relevant local laws must be strictly followed.
(II) Maintenance Specifications
① Keep the device dry. Avoid using it in humid environments or operating it with wet hands to prevent device short circuits, corrosion failures, and electric shock risks to personnel.
② Avoid subjecting the device to strong impact, vibration, collision, throwing or extrusion. Do not pierce the device with sharp objects. The device can withstand the automotive vibration environment.
③ The device's operating temperature range is -20℃~70℃, and the storage temperature range is -40℃~85℃. Do not place the device and power supply in temperature environments beyond this range to avoid malfunctions.
④ Only use power supplies and data cables approved or provided by the official. The device supports 12V/24V power supply.
⑤ Do not disassemble the device and accessories without authorization. The product quality complies with JT/T794 standards (including hardware testing, software testing, reliability, quality and other requirements). Unauthorized disassembly may affect product compliance and normal use.
Product Configuration and Technical Parameters
(I) Package List
Serial Number | Product Name | Quantity per Set | Description | Remarks |
1 | Dash Cam Host with Built-in ADAS | 1 | Includes 1 host, detachable 3M plastic base (with power cable A and external camera). The front road camera supports 1080P. | Standard Configuration |
2 | Power Cable | 1 | 1 piece of 12V power cable (with SOS button), including positive and negative poles and ACC wire. Cable length is about 2m, and SOS wire length is about 2m. | Standard Configuration |
3 | DSM Extension Cable | 1 | Equipped with infrared night vision function, 16:9 aspect ratio, field of view H=60°, V=42°, extension cable length 2m. | Optional Configuration |
4 | In-vehicle Camera 1 | 1 | Voltage 12V, 720P resolution, AHD camera, single channel, infrared night vision, 16:9 aspect ratio, field of view H=115°, V=53°. | Optional Configuration |
5 | 4th Channel Camera | 1 | AHD 720P resolution | Optional Configuration (choose one) |
6 | Emergency Button | 1 | Standard emergency alarm interface | Optional Configuration |
7 | User Manual | 1 | Product usage instruction document | Standard Configuration |
(II) Detailed Technical Parameters
Parameter Category | Parameter Item | Details | Remarks |
Basic Parameters | Product Type | 4G DVR On-board Video Terminal (integrated with ADAS camera) | - |
Network Standard | Global 4G frequency bands | - | |
Memory Configuration | 256MB (Flash) + 1GB (DDR) | - | |
Camera Parameters | Front Camera (ADAS Camera) | 1080P resolution, MIPI camera, field of view H:112°, V:55° | - |
In-vehicle Camera | AHD 720P resolution, with light sensor and infrared night vision function | - | |
DSM Camera | AHD camera, single channel, infrared night vision, field of view H=60°, V=42° | - | |
4th Channel Camera | AHD 720P resolution | Optional | |
Hardware Functions | Positioning Module | Supports GPS+BDS dual-mode positioning, built-in ceramic antenna | - |
Communication Module | Supports global 4G communication and SMS command functions, built-in FPC+IPEX adapter 4G antenna | - | |
Wi-Fi Function | Supports 802.11b/g/n protocol, built-in FPC+IPEX adapter Wi-Fi antenna | - | |
Audio Equipment | 8-ohm 1.5-watt single-channel speaker (with sound cavity), built-in dual silicon microphones | - | |
Sensor | 3-axis accelerometer | - | |
Interfaces and Card Slots | Interface Type | micro 5Pin USB × 1 (data interface), 1 × RS232 | - |
Power Interface | BMW connector (Power+/GND) | - | |
Signal Cables | Left turn signal cable, right turn signal cable, SOS cable (emergency button) | - | |
SIM Card Slot | Micro SIM card | - | |
TF Card Slots | Dual TF card slots (both Card 1 and Card 2 support cyclic storage) | - | |
Power Supply and Buttons | Power Supply Voltage | 12V/24V | - |
Current Consumption | At 12V working voltage, current is 500mA~1A (depending on whether the algorithm is enabled, etc.); ≤3mA when ACC is off | - | |
Reset Button | Long press the power button for 8 seconds to reset | - | |
Indicator Light | Two-color indicator light | - | |
Alarm Button | Standard emergency alarm connector | - | |
Storage Parameters | Storage Medium | Dual TF cards, supporting 4G~2TB capacity, patented DXR streaming storage format | Encrypted file format |
Storage Method | Cyclic storage (FIFO). Videos can be overlaid with information such as vehicle brand, location, longitude and latitude, speed, time, and channel number. | - | |
Environmental and Electrical Parameters | Operating Temperature | -20℃~70℃ | - |
Storage Temperature | -40℃~85℃ | - | |
ESD Protection | Contact 6KV, Air 10KV | - | |
Other Requirements | Complies with JT/T794 standards | Including hardware, software, reliability, quality and other tests |
Core Function Description
(I) Vehicle Monitoring Function
Supports the JT/T808 communication protocol, with position reporting, trajectory storage, and base station-assisted positioning functions. It can query and set parameters such as license plate number, reporting interval, and overspeed threshold, realizing real-time monitoring and management of vehicle driving status.
(II) Video Function
Adopts the JT/T1078 video protocol, supporting real-time video playback, remote historical video playback and download, and recording function after engine shutdown. Supports AHD1080P and 720P HD recording. 4-channel video capture can fully cover key scenes inside and outside the vehicle, ensuring the integrity and clarity of video monitoring.
(III) Storage Function
Uses dual TF card cyclic storage (FIFO) and supports remote search and upload of video information through the platform. The encrypted file format ensures the security of video data. The overlaid information can realize the accurate correlation between videos and vehicle driving data, facilitating subsequent tracing.
(IV) Alarm Function
Supports overspeed alarm, overtime alarm, electronic fence alarm, emergency alarm, camera fault alarm, and storage medium fault alarm. All alarm information can be uploaded to the platform in real time. Equipped with a standard emergency alarm button, which can quickly trigger an alarm in emergency situations to improve safety assurance.
(V) Voice Function
Has TTS text-to-speech broadcast function, supporting voice prompts such as overspeed voice prompts, TF card insertion/removal voice prompts, and active safety alarms (such as ADAS and DMS alarms). It timely reminds the driver through auditory feedback and reduces operational distractions.
(VI) Remote Maintenance Function
Supports OTA remote upgrade, enabling device firmware update without on-site operation. Remote debugging commands can be sent through the WeChat Mini Program to realize convenient parameter setting and query, reducing maintenance costs and improving device management efficiency.
(VII) Intercom Function
Supports two-way intercom function, adopting G711A audio format. It can realize real-time voice communication between in-vehicle personnel and the platform or other terminals, suitable for scenarios such as dispatch instruction transmission and emergency communication.
(VIII) Intelligent Algorithm Functions
① Face Recognition: Supports FaceID function, which can be used for driver face recognition check-in. Identity verification is performed through the local face database to ensure the compliance of the driver's qualifications.
② Passenger Counting: Real-time calculates the number of passengers in the vehicle through the on-board camera algorithm and reports it. Suitable for scenarios such as passenger capacity monitoring of passenger vehicles and personnel management of logistics vehicles.
③ Mask-off Recognition: The terminal can automatically detect whether the driver is wearing a mask. If not, it generates a voice prompt and reports an alarm to the platform, assisting in epidemic prevention and driver health management.
(IX) ADAS Function (Advanced Driver Assistance System)
Alarm Type | Description | Default Activation Condition | Remarks |
Forward Collision Warning (FCW) | Real-time monitors the distance to the vehicle ahead and issues a warning 2.7 seconds before the expected collision to prevent rear-end collisions. Voice prompt: "Collision Danger" | Vehicle speed ≥30km/h | Optional Function |
Lane Departure Warning (LDW) | Monitors lane markings and vehicle trajectory. Issues an alarm when the vehicle is about to depart from the lane unconsciously, reminding to keep driving in the safe lane. Voice prompt: "Lane Departure" | Vehicle speed ≥30km/h | Optional Function |
Headway Monitoring Warning (HMW) | Displays the distance to the vehicle ahead (in seconds) and issues an alarm when approaching the preset dangerous distance. Voice prompt: "Pay Attention to the Vehicle Ahead" | Vehicle speed ≥30km/h | Optional Function |
(X) DSM Function (Driver Status Monitoring System)
Monitoring Type | Description | Default Activation Condition | Remarks |
Fatigue Driving Warning | Identifies the driver's closed eyes and yawning status. Voice prompt: "Please Rest" | Vehicle speed ≥30km/h | Optional Function |
Distracted Driving Warning | Identifies the driver's continuous left-right head turning and head down/up status. Voice prompt: "Please Concentrate" | Vehicle speed ≥30km/h | Optional Function |
Mobile Phone Usage Recognition | Identifies the driver's gesture of using a mobile phone. Voice prompt: "Mobile Phone Use Prohibited" | Vehicle speed ≥30km/h | Optional Function |
Smoking Recognition | Identifies the driver's smoking posture. Voice prompt: "Smoking Prohibited" | Vehicle speed ≥30km/h | Optional Function |
Face Mismatch Recognition | Detects that the current face is inconsistent with the last recognition result, promptly discovering unauthorized driving | Vehicle speed ≥30km/h | Optional Function |
Camera Obstruction Alarm | Detects that the device camera is obstructed to ensure the normal operation of the monitoring function | Vehicle speed ≥30km/h | Optional Function |
Infrared Glasses Obstruction Alarm | Detects that the driver wears infrared glasses to block the face, avoiding evasion of monitoring | Vehicle speed ≥30km/h | Optional Function |
Installation Specifications
(I) Installation Location Requirements
① Follow regional installation regulations (such as US FMCSA, UK windshield zoning requirements) to ensure the installation location complies with local laws.
② It is recommended to install it on the driver's side of the windshield, parallel to and close to the rearview mirror. Requirements: no obstruction to the line of sight and no interference with driving; the camera remains horizontal without inclination; the DSM camera can clearly capture the driver's face and upper body, and the front camera can fully capture the front road view.
(II) Wiring Instructions
Cable Color/Connector | Function | Remarks |
Red Cable | Positive Power Pole | - |
Black Cable | Negative Power Pole | - |
Orange Cable | Ignition Switch (ACC) | - |
Purple Cable | Left Turn Signal Cable | - |
White Cable | Right Turn Signal Cable | - |
SOS Cable | Connects to Emergency Button | - |
Note: The installation wiring harness must be connected to the host's "Power & Emergency" interface to ensure firm wiring and good contact, avoiding device malfunctions caused by wiring problems.
(III) Component Installation
① TF Card/SIM Card Installation: Locate the TF card (2 slots) and SIM card (Micro SIM) installation positions on the device, insert the corresponding cards in the indicated direction, and ensure the cards are properly installed.
② Camera Installation: The front ADAS camera, in-vehicle camera, DSM camera, and optional 4th channel camera need to be fixed according to monitoring needs to ensure the lens is unobstructed and the angle meets the monitoring range requirements.
Device Operation and Maintenance
Common Troubleshooting
Fault Phenomenon | Solution |
Unable to Record | Check if the TF card is properly inserted and the capacity meets the requirements (4G~2TB); confirm the camera is connected normally without obstruction or malfunction. |
Cyclic Recording Failure | Check the remaining space of the memory card; format the memory card when space is insufficient; confirm the storage is set to "Cyclic Storage" mode. |
Blurry Recording Image | Tear off the camera lens protective film and clean the lens and windshield; adjust the camera angle to ensure no obstruction. |
No Audio in Recording | Confirm the built-in microphone is not obstructed; check if the voice recording function is enabled and the speaker is working normally. |
Device Unable to Connect to Network | Check if the SIM card is inserted correctly, unpaid or damaged; confirm there is 4G signal coverage in the area and the communication module is working normally. |
Inaccurate Positioning | Check if the GPS antenna is obstructed; restart the device in an open area to search for satellite signals again. |
Alarm Function Failure | Check if the alarm threshold setting is reasonable; confirm the relevant alarm function is enabled; check if the emergency button connection is normal. |
Other Faults | Long press the power button for 8 seconds to reset the device; restore factory settings. |
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