5g smart driving antenna

ToxuTech’s  Custom Gnss+V2X+4G Integrated Shark FinAntenna: Resolving Core Challenges for Autonomous Mining Truck Solutions

Previously, the client—provider of an autonomous mining truck solution designed for large domestic open-pit mines—faced issues such as "intermittent vehicle-to-vehicle (V2V) communication" and "unsynchronized position data." These problems led to frequent incidents of "excessively close following" or "route deviation" during fleet operation, and even disrupted loading/unloading efficiency. To address these needs, ToxuTech developed a customized "GNSS+V2X+4G integrated shark fin antenna." Through function integration and scenario-specific adaptation, this antenna successfully resolved the above pain points. Currently, it has been deployed in large-scale applications across 100 mining trucks at a coal mine in Shanxi Province, alongside the client’s solution.

Demand Analysis: 3 Core Pain Points of the Client’s Solution, Pointing to "Antenna Collaboration" Challenges

The client’s autonomous mining truck solution aimed to achieve "multi-vehicle fleet operation, real-time position interaction, and emergency linkage." However, during initial testing, traditional antenna solutions revealed significant shortcomings:

1. V2V Communication Latency Exceeded 500ms, Hindering Fleet Operation

Initially, the client adopted a discrete solution with "independent V2X antennas + independent 4g Antennas": V2X handled short-range V2V communication (e.g., following distance, braking signals), while 4G managed long-range data transmission. Nevertheless, the mine’s terrain—marked by steep slopes and high elevation differences—created "signal blind spots" for discrete antennas, resulting in V2V communication latency often exceeding 500ms. When mining trucks traveled at 20km/h, a 500ms latency caused vehicles to travel an additional 3 meters, significantly increasing the risk of rear-end collisions within the fleet or reducing transport efficiency due to excessively large following distances.

2. GNSS Positioning and V2X Data Were "Asynchronous," with Interaction Deviation Exceeding 1 Meter

Precise alignment was required during mining truck loading/unloading (e.g., multiple trucks unloading coal at a crusher station simultaneously, needing to maintain a 1.5-meter gap). This demanded real-time matching between GNSS positioning data and "vehicle position information" transmitted via V2X. In the traditional solution, however, GNSS antennas and V2X antennas were installed at different locations on the truck (GNSS at the front of the roof, V2X at the rear), leading to a "time difference" in signal reception. This caused position data interaction deviation to exceed 1 meter, requiring repeated adjustments during multi-vehicle alignment and increasing the time per loading/unloading cycle by 4–6 minutes.

3. Cumbersome Antenna Installation, High Truck Modification Costs

Discrete antennas (one each for GNSS, V2X, and 4G) required 3–4 drill holes in the mining truck roof. This not only damaged the vehicle structure but also increased the difficulty of "waterproof sealing": in dusty, rainy, or snowy mine conditions, water easily seeped into the drill holes, causing short circuits. The antenna failure rate reached 25% within 3 months. Additionally, wiring and debugging for three antennas required extra labor, increasing the modification cost per truck by RMB 800—and totaling RMB 80,000 for 100 trucks.

Customized Breakthrough: 3 Core Designs of ToxuTech’s Integrated Shark Fin Antenna, Targeting the Root of Demands

To address the client’s pain points, ToxuTech established a dedicated technical team. After 3 on-site mine surveys, the team finalized the "GNSS+V2X+4G triple-mode integrated" shark fin antenna solution. Core designs focused on "reducing latency, synchronizing data, and simplifying installation":

1. Triple-Mode Signal Co-Integration Design: Reducing Communication Latency to Under 100ms

The customized shark fin antenna integrated three modules into a single housing: a GNSS module (supporting triple-mode positioning via BDS, GPS, and GLONASS), a V2X module (supporting PC5 protocol for short-range communication), and a 4G module (supporting LTE Cat.4 for long-range transmission). All three modules shared a "signal filtering circuit" and "RF channel":

● V2X and 4G signals used "dynamic frequency switching" technology to avoid interference (V2X operating at 5.9GHz, 4G at 1.8/2.6GHz), ensuring short-range communication and long-range transmission did not affect each other;

● The integrated design shortened V2X signal transmission paths by 80%. Field tests in complex mine terrain showed stable V2V communication latency of 80–100ms—only 1/5 of the traditional solution. When mining trucks traveled, the "extra distance" caused by 100ms latency was less than 0.6 meters, fully meeting the requirement for safe fleet following (1.5-meter safety gap).

2. "Millisecond-Level Synchronization" of Positioning-Communication Data, Controlling Interaction Deviation to Within 30cm

To resolve asynchrony between GNSS positioning and V2X data, the antenna incorporated a "time synchronization chip" to achieve "clock alignment" across the three functions:

● Positioning data (latitude, longitude, altitude) acquired by the GNSS module was transmitted directly to the V2X module via an internal high-speed bus, taking only 5ms—avoiding the latency of traditional solutions where "positioning data is first sent to the on-board terminal, then forwarded to the V2X module";

● Simultaneously, the antenna’s output positioning data was bound to "vehicle ID and travel speed" carried in V2X signals, ensuring receiving trucks could "match position and vehicle status in one second." This reduced interaction deviation from over 1 meter to within 30cm, eliminating the need for repeated adjustments during multi-vehicle alignment and shortening the time per loading/unloading cycle by 4 minutes—enabling 2–3 additional trips per truck daily.

3. Integrated Installation + IP6K9K Protection: 30% Lower Modification Costs

To address cumbersome installation and high failure rates, the antenna featured two key optimizations in structure and protection:

● Single-Hole Installation Design: With overall dimensions of 280mm×180mm×80mm (comparable to traditional shark fin antennas), the antenna only required one 50mm-diameter drill hole in the truck roof for wiring and fixation—2–3 fewer holes than traditional solutions. This shortened modification time per truck from 4 hours to 1.5 hours and reduced modification costs by 30% (from RMB 800 to RMB 560 per truck);

● Ultra-High Protection Standards: The housing used impact-resistant ABS+PC alloy with an "anti-UV coating" (adapting to intense mine sunlight). Internal interfaces featured "double-layer silicone gaskets + threaded locking," achieving IP6K9K protection (withstanding high-pressure water jet cleaning and 90℃ high-temperature spraying). Circuit boards also received "triple-proof coating" (resisting coal dust corrosion and mold).

As of August 2025, ToxuTech’s customized GNSS+V2X+4G shark fin antenna has operated stably for 3 months at the Shanxi coal mine alongside the client’s solution.

Currently, ToxuTech has developed two standardized customized solutions for autonomous mining truck scenarios: "GNSS+V2X+4G" and "GNSS+V2X+5G." These solutions can be adjusted for protection levels and signal parameters based on the client’s mining truck operating environment (e.g., high altitude, high electromagnetic interference). Delivery time has been shortened from the traditional 45 days to 25 days, providing support for the rapid implementation of clients’ solutions.