Concession signal flashing lamp light control system

Abstract

The invention relates to the technical field of traffic signal control, and discloses a yielding signal flasher light control system, which comprises the steps of hardware initialization and integration, intention detection and verification, activation signal broadcast and adaptive control, feedback loop and interrupt processing and fault diagnosis and closing. The steering wheel is embedded into a capacitive multi-point touch sensor, supports clockwise and anticlockwise sliding to be activated and closed, is accessed to a controller local area network bus and is linked with an inertial measurement unit module; the method is based on a dedicated short-distance communication protocol or a cellular vehicle-to-everything communication protocol. Intention verification is activated through acceleration change rate and traffic density confirmation; broadcasting a speed change rate and a state after activation; fault self-diagnosis current abnormity rapidly flickers and broadcasts warning, slides or closes the system through voice. The capacitive multi-point touch sensor is combined with acceleration change rate verification of the inertial measurement unit module and traffic density auxiliary confirmation of the inter-vehicle communication module, so that mistaken touch operation is avoided, and signal starting under complex road conditions is adapted.

Description

Technical Field

[0001] This invention relates to the field of traffic signal control technology, and in particular to a yield signal flashing light control system. Background Technology

[0002] In modern road traffic systems, the signal transmission of vehicle yielding behavior relies on the lighting control system, which, as one of the key technologies for vehicle-to-vehicle interaction, directly affects driving safety and traffic flow efficiency. With the development of automotive electronics and vehicle-to-everything (V2X) technologies, vehicle lighting control systems need to possess accurate intent recognition capabilities and adaptability to complex road conditions to meet the signal transmission needs of different traffic scenarios.

[0003] Currently, vehicle yielding signals are primarily implemented through existing lighting systems such as traditional turn signals and brake lights. Some models may have physical buttons or a single touch button on the steering wheel to trigger additional warning lights. These existing solutions mostly rely on single operational commands for light triggering, simply pressing a button or performing a fixed operation to activate the lights, without verifying intent based on vehicle motion data. Furthermore, they lack real-time communication with surrounding vehicles, failing to obtain road condition information such as traffic density, and instead depend solely on the driver's subjective judgment to activate the relevant light signals.

[0004] However, in the process of implementing the technical solution of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: the intention activation mechanism of the existing lighting control system lacks multi-dimensional data verification and relies only on a single operation command to trigger, which is prone to accidental activation of the light signal due to accidental touch. Summary of the Invention

[0005] To overcome the above shortcomings, this invention provides a concession signal flashing light control system, which aims to improve the existing light control system's intent activation mechanism, which lacks multi-dimensional data verification and relies solely on a single operation command for triggering, making it prone to accidental activation of the light signal due to accidental touch.

[0006] This invention provides the following technical solution: a yield signal flashing light control system, comprising:

[0007] Hardware initialization and integration: A capacitive multi-touch sensor is embedded in the steering wheel, connected to the controller LAN bus, and works with an inertial measurement unit module containing an accelerometer and a gyroscope;

[0008] Integrated vehicle-to-vehicle communication module: Based on a dedicated short-range communication protocol or a cellular vehicle-to-everything communication protocol, the front and rear lights adopt a distributed optical fiber light guide structure, from the central light source through optical fiber to multiple light points, and the instrument panel display unit flashes synchronously with the outside of the vehicle; initialize the calibration baseline and establish the default configuration;

[0009] Intent detection and verification: After clockwise sliding, acceleration, angular velocity, and tilt data are collected. If the rate of change exceeds the threshold, it is activated; otherwise, it is ignored. The vehicle-to-vehicle communication module scans surrounding vehicles and calculates traffic density for input verification.

[0010] Activate signal broadcast and adaptive control: After confirmation, activate the front and rear lights and broadcast the speed change rate and status; when receiving feedback, switch the blasting mode to synchronous pulse under high density, adjust the frequency and gradual pulse according to the inertial measurement unit module and speed, interrupt the front green light when turning, switch the blasting mode in low visibility and broadcast the enhanced side.

[0011] Feedback loop and interruption handling: The light gradually dims if there is no deceleration; an interruption warning is triggered when there is no feedback or a conflict; the light switches when there is a conflict with other lights; when the turn signals are activated simultaneously, only the rear red light is synchronized.

[0012] Fault diagnosis and shutdown: When the self-diagnostic current is abnormal, it flashes rapidly and broadcasts a warning. It can be turned off by sliding counterclockwise or by voice, and the cache can be reset.

[0013] Preferably, in the hardware initialization and integration, a capacitive multi-touch sensor is embedded in the steering wheel, supporting clockwise activation and counterclockwise deactivation. It is connected to the controller local area network bus and works in conjunction with an inertial measurement unit module containing an accelerometer and a gyroscope. The vehicle-to-everything communication module is integrated based on a dedicated short-range communication protocol or a cellular vehicle-to-everything communication protocol. The front and rear lights adopt a distributed fiber optic light guide structure, with light flowing from the central light source through optical fibers to multiple light points. The instrument panel display unit flashes synchronously with the outside of the vehicle. The baselines of the capacitive multi-touch sensor and the inertial measurement unit module are initialized and calibrated, and the default configuration of the vehicle-to-everything communication module is established.

[0014] Preferably, in the intent detection and verification, after detecting clockwise sliding, acceleration, angular velocity, and tilt data are collected from the inertial measurement unit module. If the calculated acceleration change rate exceeds a threshold, it is activated; otherwise, it is ignored. The vehicle-to-vehicle communication module scans surrounding vehicles and calculates traffic density for input verification, ensuring reliability in complex road conditions.

[0015] Preferably, in the activation signal broadcasting and adaptive control, after confirmation, the front and rear lights are activated and output through the distributed optical fiber light guide structure. The vehicle-to-vehicle communication module broadcasts the speed change rate and status. When receiving feedback, the high-density blasting mode is switched to a synchronization pulse. The frequency and gradual pulse are adjusted according to the speed of the inertial measurement unit module and the controller local area network bus.

[0016] Preferably, in the activation signal broadcast and adaptive control, when turning, the front green light is interrupted when calculating the angular velocity, and only the rear red light and turn signal are kept synchronized.

[0017] In low visibility conditions, the blasting mode is switched via the status of the wipers or fog lights. The inter-vehicle communication module broadcasts to enhance side coverage, and the transmission is optimized using a distributed optical fiber light guide structure.

[0018] Preferably, in the feedback loop and interrupt handling, the inertial measurement unit module gradually extinguishes the flashing if it detects that the vehicle has not decelerated.

[0019] The communication module between vehicles will be interrupted if there is no feedback or a conflict, and the instrument panel display unit will issue a warning.

[0020] Preferably, in the feedback loop and interrupt handling, when the yield light flashes and other lights are turned on, the yield light is switched off and turned off.

[0021] When other lights are flashing, turning on the concession light will switch on and turn off the original light.

[0022] When the turn signals are activated simultaneously, the front and rear lights do not flash; only the rear red light is synchronized with the turn signals.

[0023] If you turn off the turn signal first, the yield light will also turn off; if you turn off the yield light first, the turn signal will continue to flash.

[0024] Preferably, during the fault diagnosis and shutdown process, the controller local area network bus self-diagnoses the bulb and fiber optic current. When an abnormality occurs, the yield light flashes rapidly or stops flashing, and the instrument panel display unit displays the information synchronously.

[0025] The inter-vehicle communication module broadcasts a warning.

[0026] Slide the capacitive multi-touch sensor counterclockwise or use voice commands to turn it off, enter standby mode, and reset the cache of the inertial measurement unit module and the vehicle communication module.

[0027] Preferably, in the activation signal broadcasting and adaptive control, feedback loop and interrupt handling, and fault diagnosis and shutdown, the vehicle-to-vehicle communication module broadcasts encoded signals containing speed change rate and status, receives feedback to adjust the blasting mode, listens for conflict-triggered interrupts, and broadcasts warnings when a fault occurs.

[0028] Preferably, under conditions of activation signal broadcasting, adaptive control, and low visibility, the distributed optical fiber light guide structure outputs front and rear lights flashing from the central light source through optical fiber to multiple light points, and cooperates with the vehicle-to-vehicle communication module to broadcast and enhance side coverage.

[0029] The present invention has the following beneficial effects:

[0030] 1. This invention achieves precise filtering of intent activation by combining a capacitive multi-touch sensor with the acceleration change rate verification of the inertial measurement unit module and the traffic density auxiliary confirmation of the inter-vehicle communication module, thereby avoiding accidental touch operations and adapting to signal activation under complex road conditions.

[0031] 2. In this invention, the distributed optical fiber light guide structure guides the light from the central light source through optical fiber to multiple output light points, causing the front and rear lights to flash. Combined with the adaptive gradual pulse mode and burst mode switching, it ensures the consistency of signal transmission under different speeds, turns, and low visibility conditions.

[0032] 3. The feedback loop and interrupt handling module's non-deceleration fading, conflict switching, and fault diagnosis current abnormal rapid flashing mechanism, combined with the warning broadcast of the inter-vehicle communication module, provide real-time monitoring of the system status and synchronous response of surrounding vehicles. Attached Figure Description

[0033] Figure 1 This is a diagram illustrating the architecture of a concession signal flashing light control system proposed in this invention.

[0034] Figure 2 This is a diagram illustrating the intent detection and verification of a concession signal flashing light control system proposed in this invention. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figure 1 and Figure 2 In a first embodiment of the present invention, a concession signal flashing light control system is provided, comprising:

[0037] Hardware initialization and integration: A capacitive multi-touch sensor is embedded in the steering wheel, connected to the controller LAN bus, and works with an inertial measurement unit module containing an accelerometer and a gyroscope;

[0038] Integrated vehicle-to-vehicle communication module: Based on a dedicated short-range communication protocol or a cellular vehicle-to-everything communication protocol, the front and rear lights adopt a distributed optical fiber light guide structure, from the central light source through optical fiber to multiple light points, and the instrument panel display unit flashes synchronously with the outside of the vehicle; initialize the calibration baseline and establish the default configuration;

[0039] Intent detection and verification: After clockwise sliding, acceleration, angular velocity, and tilt data are collected. If the rate of change exceeds the threshold, it is activated; otherwise, it is ignored. The vehicle-to-vehicle communication module scans surrounding vehicles and calculates traffic density for input verification.

[0040] Activate signal broadcast and adaptive control: After confirmation, activate the front and rear lights and broadcast the speed change rate and status; when receiving feedback, switch the blasting mode to synchronous pulse under high density, adjust the frequency and gradual pulse according to the inertial measurement unit module and speed, interrupt the front green light when turning, switch the blasting mode in low visibility and broadcast the enhanced side.

[0041] Feedback loop and interruption handling: The light gradually dims if there is no deceleration; an interruption warning is triggered when there is no feedback or a conflict; the light switches when there is a conflict with other lights; when the turn signals are activated simultaneously, only the rear red light is synchronized.

[0042] Fault diagnosis and shutdown: When the self-diagnostic current is abnormal, it flashes rapidly and broadcasts a warning. It can be turned off by sliding counterclockwise or by voice, and the cache can be reset.

[0043] Specifically, the system controls vehicle yielding signals through the above steps. The system consists of a hardware initialization and integration module, an intent detection and verification module, an activation signal broadcasting and adaptive control module, a feedback loop and interrupt handling module, and a fault diagnosis and shutdown module.

[0044] The hardware initialization and integration module provides the connection foundation for the capacitive multi-touch sensor, inertial measurement unit module, vehicle-to-vehicle communication module, distributed fiber optic light guide structure, and instrument panel display unit. The intent detection and verification module calculates the rate of change of acceleration based on the collected data.

[0045] The formula for calculating the rate of change of velocity is:

[0046] Among them, a r Δa represents the rate of change of acceleration, Δt represents the increment of acceleration, and Δt represents the increment of time.

[0047] The verification condition is: when a r >T a Then activation is confirmed, where T a This represents the threshold for the rate of change of acceleration.

[0048] The formula for calculating traffic density by the vehicle-to-vehicle communication module is:

[0049]

[0050] Where d represents traffic density, n represents the number of vehicles scanned, and s i This represents the signal strength of the i-th vehicle.

[0051] The activation signal broadcasting and adaptive control module processes the rate of change of speed. The formula for the rate of change of speed is:

[0052] Among them, v r Δv represents the rate of change of velocity, Δt represents the velocity increment, and Δt represents the time increment.

[0053] The formula for gradient pulse brightness is:

[0054] Where b(t) represents the brightness at time t, b0 represents the initial brightness, and b mThis represents the maximum brightness, p represents the pulse period, and the turning intention is determined as follows: when ω > T ω The green light ahead will be interrupted, where ω represents angular velocity and T... ω This indicates the angular velocity threshold.

[0055] The formula for the bomb defusal sequence is:

[0056] Where s(k) represents the k-th period sequence, m represents the number of pulses, and p k Let τ represent the duration of the k-th pulse, and τ represent the pause time.

[0057] The feedback loop and interrupt handling module monitor the non-deceleration condition: when a r <T a,min Then it gradually disappears, where T a,min This represents the minimum rate of change of acceleration threshold. Fault diagnosis and shutdown module judgment of current abnormality: when |ii n |>T i The fault is represented by i, where i represents the actual current. n T represents the nominal current. i The above modules communicate via the controller local area network bus to implement the signal control process, which represents the current threshold.

[0058] During hardware initialization and integration, a capacitive multi-touch sensor is embedded in the steering wheel, supporting clockwise activation and counter-clockwise deactivation. It connects to the controller LAN bus and works in conjunction with an inertial measurement unit module containing an accelerometer and gyroscope. The vehicle-to-everything (V2X) communication module is integrated based on a dedicated short-range communication protocol or a cellular vehicle-to-everything (V2X) communication protocol. The front and rear lights adopt a distributed fiber optic light guide structure, with light from the central light source passing through optical fibers to multiple light points. The instrument panel display unit flashes synchronously with the outside of the vehicle. The baseline of the capacitive multi-touch sensor and the inertial measurement unit module is initialized and calibrated, and the default configuration of the V2X communication module is established. During intent detection and verification, after detecting a clockwise slide, acceleration, angular velocity, and tilt data are collected from the inertial measurement unit module. If the rate of change of acceleration exceeds a threshold, it is activated; otherwise, it is ignored. The V2X communication module scans surrounding vehicles, calculates traffic density, and inputs it for verification, ensuring reliability in complex road conditions.

[0059] Specifically, the hardware initialization and integration module fixes the capacitive multi-touch sensor to the left thumb position on the steering wheel and connects it to the controller area network bus interface via wires. The capacitive multi-touch sensor includes a capacitor array and a signal processor, supporting trajectory recognition circuitry to detect clockwise or counterclockwise sliding paths. The inertial measurement unit module is installed on the vehicle chassis and includes a three-axis accelerometer and a three-axis gyroscope, communicating with the controller area network bus via a serial peripheral interface. The vehicle-to-everything communication module uses an RF antenna and a modem, supporting dedicated short-range communication protocol data packet format or cellular vehicle-to-everything communication protocol channel allocation. The distributed fiber optic light guide structure consists of an LED array as the central light source, with fiber bundles branching to multiple light-emitting points on the left and right green lights at the front of the vehicle and the central red light at the rear. Each light-emitting point is equipped with a diffusion lens. The instrument panel display unit uses an LCD screen to display horizontal thumbnails, and the external lights flash synchronously with the controller area network bus via pulse width modulation signals.

[0060] The initialization steps include running a calibration program after powering on, setting the touch threshold of the capacitive multi-touch sensor and the zero-bias compensation of the inertial measurement unit module, configuring the frequency band and network identifier of the inter-vehicle communication module, and the intent detection and verification module acquiring acceleration data sequences, angular velocity data sequences and tilt data sequences from the inertial measurement unit module after the capacitive multi-touch sensor outputs a clockwise sliding signal.

[0061] The rate of change of acceleration is obtained by differential calculation using formula (1), and the threshold comparison uses a preset constant T. a If a r >T a If the signal is positive, an activation flag is generated; otherwise, the signal is discarded.

[0062] The vehicle-to-vehicle communication module sends scanning data packets to receive responses from surrounding vehicles. The traffic density is calculated using formula (2). The traffic density value is used as a weighting factor and multiplied by the acceleration change rate to form a composite verification index. If the composite index exceeds the combined threshold, the intent is confirmed to be valid.

[0063] In the activation signal broadcast and adaptive control, after confirmation, the front and rear lights are activated and output through the distributed optical fiber light guide structure. The vehicle communication module broadcasts the speed change rate and status. When receiving feedback, the high-density blasting mode is switched to a synchronous pulse. The frequency and gradual pulse are adjusted according to the speed of the inertial measurement unit module and the controller local area network bus. In the activation signal broadcast and adaptive control, when turning, the angular velocity is calculated and the front green light is interrupted, only the rear red light and turn signal are kept synchronized.

[0064] In low visibility conditions, the blasting mode is switched via the status of the wipers or fog lights. The inter-vehicle communication module broadcasts to enhance side coverage, and the transmission is optimized using a distributed optical fiber light guide structure.

[0065] Specifically, after the activation signal broadcasting and adaptive control module generates an activation flag through intent verification, it initiates a control logic circuit based on a finite state machine, which includes transition conditions for activation, adjustment, and interrupt states.

[0066] In the active state, the controller local area network bus sends a drive signal to the LED array, generating an initial flashing sequence of green and red lights. The light is transmitted through a distributed optical fiber light guide structure. The optical fiber bundle branches out from the LED array to multiple light-emitting points on the left and right sides of the front of the vehicle and the light-emitting point in the center of the rear of the vehicle. Each light-emitting point is composed of a polymer optical fiber end face and a reflective coating.

[0067] The vehicle-to-vehicle communication module assembles data packets, including the current rate of change of speed and a flashing status flag, and broadcasts them via a radio frequency antenna in a dedicated short-range communication protocol format. The data packet structure consists of a header field, a rate of change of speed field, and a status field.

[0068] The rate of change of speed is calculated by collecting speed data sequence from vehicle speed sensor through the controller local area network bus and using formula (3). When a confirmation feedback signal from the vehicle behind is received, the traffic density value is checked. If the density exceeds the preset upper limit, the blasting mode is switched from the standard sequence to the synchronous pulse sequence. This sequence consists of a fixed number of short pulses per cycle, followed by a pause interval.

[0069] Based on the acceleration data provided by the inertial measurement unit module and the vehicle speed value obtained by the controller local area network bus, the flashing frequency is dynamically calculated. If the speed is higher than the preset speed threshold, the frequency is increased from the base value to the extended value, and a gradual pulse mode is applied. The brightness of the gradual pulse is modulated by a sine function, using formula (4).

[0070] During turning detection, angular velocity data sequences are collected from the inertial measurement unit module, and the current angular velocity value is calculated. If the angular velocity exceeds the threshold, an interrupt signal is sent to the green light drive circuit at the front of the vehicle to stop the front from flashing. At the same time, the synchronous drive of the rear red light and turn signal is maintained. The turn signal is connected to the red light circuit through a parallel bus.

[0071] The formula for determining the angular velocity threshold is: when ω>T ω If so, the execution will be interrupted.

[0072] Under low visibility conditions, the wiper motor status or fog light relay status is read from the controller LAN bus as input. When either status is active, the mode is switched to burst mode. The pulse sequence formula for this mode is calculated as (5).

[0073] Meanwhile, the vehicle-to-vehicle communication module adds a side coverage field to the broadcast data packet, instructing surrounding vehicles to prioritize the processing of side signals. The distributed optical fiber light guide structure extends to the light output point on the side of the vehicle through additional optical fiber branches, thereby optimizing the transmission path.

[0074] In the feedback loop and interrupt handling, the flashing gradually dims if the inertial measurement unit module detects that the vehicle has not decelerated.

[0075] The inter-vehicle communication module will be interrupted if there is no feedback or a conflict, and the instrument panel display unit will issue a warning.

[0076] In the feedback loop and interrupt handling, when the yield light flashes, other lights are turned on, and the yield light is switched off.

[0077] When other lights are flashing, turning on the concession light will switch on and turn off the original light.

[0078] When the turn signals are activated simultaneously, the front and rear lights do not flash; only the rear red light is synchronized with the turn signals.

[0079] If you turn off the turn signal first, the yield light will also turn off; if you turn off the yield light first, the turn signal will continue to flash.

[0080] Specifically, the feedback loop and interrupt handling module are integrated into the main control unit of the controller's local area network bus. An acceleration data sequence is continuously acquired from the inertial measurement unit module via a timing sampling circuit. The current rate of change of acceleration is calculated, and the determination of no deceleration is based on a minimum threshold comparison. The formula is: when a... r <T a,min Then, after the delay counter reaches a fixed period, the fading program is started. The fading program gradually reduces the LED array current through the pulse width modulation circuit, linearly decaying from the maximum value to zero. The decay step size is set by the resistor voltage divider network.

[0081] The radio frequency receiver of the inter-vehicle communication module listens for surrounding data packets. If no acknowledgment feedback signal is received or a conflict flag is detected within a specified timeout window, an interrupt signal is triggered to the main control unit. The interrupt signal is transmitted through the interrupt pin. After receiving the warning code, the instrument panel display unit activates a specific pixel area of ​​the LCD screen to display a predefined icon and text string, indicating the signal interruption status.

[0082] The yield light flashing drive circuit includes priority arbitration logic. When a flashing light signal other than the turn signal is detected, the arbitrator switches the control register, turns off the timing generator of the yield light, and enables the drive line of the new light. Conversely, when the timing generator of other flashing lights is active, the yield light activation signal resets the original register, switches to the yield light drive, and turns off the power relay of the original light.

[0083] The turn signal synchronization mechanism monitors the turn signal status through a parallel bus interface. If the turn signal is activated, the logic gate circuit disables the flashing output of the green headlight and only enables the timing signal of the red taillight to synchronize with the turn signal pulse. Synchronization is achieved through a clock divider to achieve phase alignment. The priority rule for turning off is implemented by the status register. When the turn signal is turned off first, the yield light register is cleared at the same time, causing the yield light drive to stop. When the yield light signal is turned off first, the turn signal register remains unchanged and continues to output the flashing sequence.

[0084] During fault diagnosis and shutdown, the controller LAN bus self-diagnoses the bulb and fiber optic current. When an abnormality occurs, the yield light flashes rapidly or does not flash at all, and the instrument panel display unit displays the information synchronously.

[0085] The inter-vehicle communication module broadcasts a warning.

[0086] Slide the capacitive multi-touch sensor counterclockwise or use voice commands to turn it off, enter standby mode, and reset the cache of the inertial measurement unit module and the vehicle communication module.

[0087] Specifically, the fault diagnosis and shutdown module periodically sends diagnostic query frames to the LED array driver circuit and fiber optic feedback loop through the main control unit of the controller LAN bus, and collects the real-time current value of each bulb branch and the photodiode feedback signal at the fiber optic reflector. The current sampling is completed by an analog-to-digital converter with a resolution of 12 bits and a sampling frequency of 1kHz.

[0088] Anomaly detection is based on a comparison of the nominal current range, using the formula: when |ii n |>T i If so, then mark the fault.

[0089] Upon detecting an anomaly, the main control unit switches to fault mode. The timing generator fixes the flashing frequency to a fast sequence of 5Hz or directly disconnects the drive. When the fiber optic feedback signal is lower than the preset light intensity threshold, the output stops completely. The instrument panel display unit receives the fault code through the serial communication interface, activates the corresponding fault icon, and displays the text "yield light fault".

[0090] After a fault is confirmed, the vehicle-to-vehicle communication module assembles a warning data packet containing a fault type field and a vehicle identifier. This packet is then broadcast via a dedicated short-range communication protocol through a radio frequency antenna. The data packet is set to the highest priority to ensure that nearby vehicle receivers can parse and record it.

[0091] The closing operation is triggered by a counter-clockwise sliding trajectory detected by a capacitive multi-touch sensor. The trajectory recognition circuit outputs a closing signal to the main control unit, or the same signal is generated by parsing the "close and yield" command through the vehicle voice recognition module.

[0092] After receiving the shutdown signal, the main control unit sends a global reset command to all drive circuits, cuts off the power supply to the LED array, enters standby mode, clears the acceleration and angular velocity data buffers of the inertial measurement unit module, releases the transmit and receive queues of the inter-vehicle communication module, and resets the communication status register to its initial value.

[0093] The vehicle-to-vehicle communication module broadcasts signals containing speed change rate and status during activation signal broadcasting and adaptive control, feedback loop and interrupt handling, and fault diagnosis and shutdown. It receives feedback to adjust the burst mode, listens for collisions to trigger interrupts, and broadcasts warnings when a fault occurs. The distributed fiber optic light guide structure, under conditions of activation signal broadcasting, adaptive control, and low visibility, outputs front and rear lights flashing from the central light source through optical fibers to multiple light points, and works with the vehicle-to-vehicle communication module to broadcast and enhance side coverage.

[0094] Specifically, the vehicle-to-vehicle communication module consists of a radio frequency transceiver, a baseband processor, and an antenna array. It uses a time-division multiple access mechanism to allocate channels. During the activation signal broadcasting and adaptive control phases, the baseband processor reads the speed change rate data and the current flashing status flag from the controller area network bus and assembles them into a fixed-length coded frame. The frame structure includes an 8-bit synchronization header, a 16-bit speed change rate field, a 4-bit status bit, and an 8-bit checksum. The frame is modulated and transmitted by the radio frequency transceiver using a dedicated short-range communication protocol or a cellular vehicle-to-everything communication protocol. The antenna array is omnidirectional and covers a 360-degree range.

[0095] When receiving feedback, the radio frequency transceiver demodulates the confirmation frames returned by surrounding vehicles, the baseband processor parses the confirmation bits, and if the confirmation is valid and the traffic density is higher than the set value, it sends a mode switching command to the main control unit to adjust the blasting mode parameters from the standard sequence to the synchronization pulse sequence. The synchronization pulse sequence achieves multi-vehicle phase alignment through the shared clock stamp field.

[0096] During the feedback loop and interrupt handling phase, the baseband processor continuously monitors the receive buffer. If no acknowledgment frame is received or a conflict flag is detected within the preset response window, an interrupt request signal is generated and transmitted to the main control unit via the interrupt line to trigger the alarm process.

[0097] During the fault diagnosis and shutdown phase, after receiving the fault code, the baseband processor constructs a warning frame, embedding the fault type code and the vehicle's unique identifier in the frame. It is then sent in the highest priority queue, with the broadcast power increased to the maximum allowable value to ensure that surrounding vehicles can receive and parse the signal within a 100-meter range.

[0098] The distributed optical fiber light guide structure consists of a high-power LED array as the central light source, an optical fiber bundle, and light output terminals. The optical fiber bundle uses polymer multimode optical fiber with a core diameter of 1mm. It branches from the output port of the LED array, and the main optical fiber transmits to the green light area on the left and right sides of the front of the vehicle and the red light area in the center of the rear of the vehicle. Each area contains 6 light output terminals. The light output terminals integrate a microlens array to achieve a beam diffusion angle of 120 degrees.

[0099] Under conditions of active signal broadcasting, adaptive control, and low visibility, the main control unit drives the LED array to generate a flashing sequence through pulse width modulation signals. The optical signal is transmitted to each output terminal via optical fiber bundle. In conjunction with the side coverage broadcast of the inter-vehicle communication module, the baseband processor adds a side enhancement flag bit to the broadcast frame. The receiving vehicle prioritizes increasing the side reception gain accordingly. The distributed optical fiber light guide structure guides the optical signal to the side output terminal of the vehicle through additional side branch optical fibers, thereby extending the side visibility range to ±60 degrees of the vehicle's longitudinal axis.

[0100] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A concession signal flashing light control system, characterized in that, include: Hardware initialization and integration: A capacitive multi-touch sensor is embedded in the steering wheel, connected to the controller LAN bus, and works with an inertial measurement unit module containing an accelerometer and a gyroscope; Integrated vehicle-to-vehicle communication module: Based on a dedicated short-range communication protocol or a cellular vehicle-to-everything communication protocol, the front and rear lights adopt a distributed optical fiber light guide structure, from the central light source through optical fiber to multiple light points, and the instrument panel display unit flashes synchronously with the outside of the vehicle; initialize the calibration baseline and establish the default configuration; Intent detection and verification: After clockwise sliding, acceleration, angular velocity, and tilt data are collected. If the rate of change exceeds the threshold, it is activated; otherwise, it is ignored. The vehicle-to-vehicle communication module scans surrounding vehicles and calculates traffic density for input verification. Activate signal broadcast and adaptive control: After confirmation, activate the front and rear lights and broadcast the speed change rate and status; when receiving feedback, switch the blasting mode to synchronous pulse under high density, adjust the frequency and gradual pulse according to the inertial measurement unit module and speed, interrupt the front green light when turning, switch the blasting mode in low visibility and broadcast the enhanced side. Feedback loop and interruption handling: The light gradually dims if there is no deceleration; an interruption warning is triggered when there is no feedback or a conflict; the light switches when there is a conflict with other lights; when the turn signals are activated simultaneously, only the rear red light is synchronized. Fault diagnosis and shutdown: When the self-diagnostic current is abnormal, it flashes rapidly and broadcasts a warning. It can be turned off by sliding counterclockwise or by voice, and the cache can be reset.

2. The concession signal flashing light control system according to claim 1, characterized in that, In the hardware initialization and integration, a capacitive multi-touch sensor is embedded in the steering wheel, supporting clockwise activation and counterclockwise deactivation. It is connected to the controller LAN bus and works in conjunction with an inertial measurement unit module containing an accelerometer and gyroscope. The vehicle-to-everything (V2X) communication module is integrated based on a dedicated short-range communication protocol or a cellular vehicle-to-everything (V2X) communication protocol. The front and rear lights adopt a distributed fiber optic light guide structure, with light flowing from the central light source through optical fibers to multiple light points. The instrument panel display unit flashes synchronously with the outside of the vehicle. The baselines of the capacitive multi-touch sensor and the inertial measurement unit module are initialized and calibrated, and the default configuration of the V2X communication module is established.

3. The concession signal flashing light control system according to claim 1, characterized in that, In the intent detection and verification process, after clockwise sliding, acceleration, angular velocity, and tilt data are collected from the inertial measurement unit module. If the acceleration change rate exceeds the threshold, the system is activated; otherwise, it is ignored. The vehicle-to-vehicle communication module scans surrounding vehicles and calculates traffic density for input verification, ensuring reliability in complex road conditions.

4. The concession signal flashing light control system according to claim 1, characterized in that, In the activation signal broadcasting and adaptive control, after confirmation, the front and rear lights are activated and output through the distributed optical fiber light guide structure. The vehicle communication module broadcasts the speed change rate and status. When receiving feedback, the high-density blasting mode is switched to a synchronization pulse. The frequency and gradual pulse are adjusted according to the speed of the inertial measurement unit module and the controller local area network bus.

5. A concession signal flashing light control system according to claim 1, characterized in that, In the activation signal broadcast and adaptive control, when turning, the angular velocity calculation interrupts the front green light, and only the rear red light and turn signal are kept synchronized. In low visibility conditions, the blasting mode is switched via the status of the wipers or fog lights. The inter-vehicle communication module broadcasts to enhance side coverage, and the transmission is optimized using a distributed optical fiber light guide structure.

6. The concession signal flashing light control system according to claim 1, characterized in that, In the feedback loop and interrupt handling, the inertial measurement unit module gradually dims the flashing if it detects that the vehicle has not decelerated. The communication module between vehicles will be interrupted if there is no feedback or a conflict, and the instrument panel display unit will issue a warning.

7. A concession signal flashing light control system according to claim 1, characterized in that, In the feedback loop and interrupt handling, when the yield light flashes, other lights are turned on, and the yield light is switched off. When other lights are flashing, turning on the concession light will switch on and turn off the original light. When the turn signals are activated simultaneously, the front and rear lights do not flash; only the rear red light is synchronized with the turn signals. If you turn off the turn signal first, the yield light will also turn off; if you turn off the yield light first, the turn signal will continue to flash.

8. A concession signal flashing light control system according to claim 1, characterized in that, During the fault diagnosis and shutdown process, the controller LAN bus self-diagnoses the bulb and fiber optic current. When an abnormality occurs, the yield light flashes rapidly or does not flash at all, and the instrument panel display unit displays the information synchronously. The inter-vehicle communication module broadcasts a warning. Slide the capacitive multi-touch sensor counterclockwise or use voice commands to turn it off, enter standby mode, and reset the cache of the inertial measurement unit module and the vehicle communication module.

9. A concession signal flashing light control system according to claim 1, characterized in that, The vehicle-to-vehicle communication module broadcasts encoded signals containing speed change rate and status during activation signal broadcasting and adaptive control, feedback loop and interrupt handling, and fault diagnosis and shutdown. It receives feedback to adjust the blasting mode, listens for conflicts to trigger interrupts, and broadcasts warnings when a fault occurs.

10. A concession signal flashing light control system according to claim 1, characterized in that, Under conditions of activation signal broadcasting, adaptive control, and low visibility, the distributed optical fiber light guide structure outputs front and rear lights flashing from the central light source through optical fiber to multiple light points, and in conjunction with the vehicle-to-vehicle communication module, broadcasts to enhance side coverage.

Images