47results about How to "Affect driving safety" patented technology

The embodiment of the application provides a detection system and a detection method for an electric vehicle motor controller. The system may include a power battery, a power distribution box, a drivemotor controller, a processing module and an interlocking circuit. The power distribution box is provided with contactors. The two ends of each contact are respectively connected with the power battery and the drive motor controller. The processing module is connected with the contactors, and the interlocking circuit connects the processing module and the drive motor controller. The processing module detects the opening and closing states of the contactors when the motor controller is used for energy recovery; when the contactors are both in the closed state, the interlocking circuit is controlled to be in conduction; and when the contactors are in the open state, the interlocking circuit is controlled to break. The interlock circuit controls the drive motor controller to charge the powerbattery in the conduction state, and controls the drive motor controller to stop charging the power battery when disconnected. The entire device can increase the service life of the vehicle's power system, and can also reduce the risk of damage caused by device abnormal disconnection to the power system during power recovery.

The invention discloses a low-speed automatic driving method, device and equipment and a storage medium. The method comprises the following steps of acquiring an initial planning path, and controlling vehicle driving according to the initial planning path, acquiring road condition information on a road ahead according to first scanning equipment mounted on the vehicle, when an obstacle is determined to exist on the front road according to the road condition information, determining an obstacle type corresponding to the obstacle, determining a corresponding target size requirement according to the obstacle type, when the obstacle is determined not to meet the target size requirement according to the road condition information, adjusting the initial planning path according to the road condition information, and acquiring an adjusted planning path, and controlling the vehicle to run according to the adjusted planned path. When the obstacle on the road does not meet the size requirement of the obstacle type, the planning path is adjusted, the obstacle influencing the normal function and performance of the vehicle on the road is identified, the obstacle is avoided, and the obstacle is prevented from hindering the vehicle running and influencing the vehicle running safety.

The invention discloses a train speed limiting control method and device. The train speed limiting control method comprises the steps of detecting whether an instability phenomenon occurs or not during the running of a train; when it is detected that the instability phenomenon occurs during the running of the train, applying braking to the train; and limiting the speed of the train to enable the train to run at a first speed. Through technical scheme, automatic speed limiting control in the train running process is realized, the technical scheme is applied to the train running control so thatthe labor intensity of a driver can be reduced; when the instability phenomenon occurs during the running of the train and the speed limiting control is carried out on the train in time, the fact thatthe train running safety is affected due to negligence of a driver is effectively avoided.

The invention discloses a cover plate culvert construction process which is characterized by comprising the following steps: staking out in survey, foundation trench excavation, foundation and platform body building, platform cap construction, cover plate installation, waterproof layer making and backfilling. According to the implementation of the construction process, the cover plate culvert is used as a culvert, no large prefabricated part exists in the construction process, and prefabrication in the construction site is facilitated; the construction process is suitable for construction in some rugged mountainous areas, meanwhile, the flood discharge capacity of the cover plate culvert is high; normal passing of flood can be guaranteed in rainy seasons, and the situation that the flood overflows the road surface, and road and driving safety are affected can be avoided.

The present invention relates to an incoming call processing method based on navigation and a terminal. The method comprises the steps of: when a terminal generates an incoming call event, hanging a display progress and an incoming call voice prompting progress of an incoming call interface; detecting whether the terminal starts navigation or not, if yes, obtaining navigation information in a future predetermined time quantum; determining whether there is an emergency navigation event or not in the future predetermined time quantum according to the navigation information; if yes, detecting whether the terminal is located in a vector navigation interface or not; if yes, obtaining incoming call information of the incoming call interface; displaying the incoming call information to the vectornavigation interface in a determined mode. It is avoided that the incoming call interface covers the navigation interface and / or the incoming call voice prompting influences the navigation voice prompting to influence driving safety and driving routes when the emergency navigation event is sent and on the premise without influence of navigation, users can know incoming call information to improvethe usage feeling of the users so as to ensure the user driving safety and the accuracy of the driving routes.

The invention discloses a vehicle, a tire cooling system and a tire cooling method. The tire cooling method comprises the following steps: a flow guide pipeline (5) having an air inlet (11) and directing a tire (4) is arranged, and airflow enters the flow guide pipeline (5), and generates a Venturi effect in order to suck water in a water source (33) connected with the flow guide pipeline (5) to the flow guide pipeline (5). The tire cooling system uses the method, and the vehicle uses the tire cooling system. Water is sucked by the airflow through using the Venturi effect in order to make the airflow have a low temperature moistening characteristic, and the amount of sucked water is small, so the tire is cooled, and the safety of the vehicle is not influenced by water accumulation of the tire.

The invention discloses a method and device for maintaining the image quality of a vehicle-mounted camera, and the vehicle-mounted camera. The method comprises the steps: carrying out the image quality evaluation of an image photographed by the vehicle-mounted camera at regular time; when the evaluated image quality does not meet the preset condition, detecting whether stains exist on a window ofthe vehicle-mounted camera or not; when it is detected that stains exist, obtaining the current motion state of the vehicle; when the previous motion state meets the safety condition, controlling a cleaning device to clean the window, wherein the cleaning device is arranged on the vehicle-mounted camera; and controlling a heating device on the vehicle-mounted camera to dry the cleaned window. According to the invention, image quality maintenance can be automatically carried out on the unmanned vehicle, and whether the motion state of the vehicle meets a safety condition is judged before the vehicle-mounted camera is cleaned; it is guaranteed that cleaning of the vehicle-mounted camera does not influence the driving safety of the vehicle, and the driving safety of the automatic driving vehicle is guaranteed.

The embodiment of the invention relates to the technical field of vehicle accessories, and discloses a headgear. The headgear comprises a helmet body, a helmet controller, a first signal transmission element and at least one helmet indicator lamp, wherein the helmet controller, the first signal transmission element and the helmet indicator lamp are all arranged on the helmet body; the helmet controller is electrically connected to the first signal transmission element and the helmet indicator lamp; the helmet controller is used for receiving a vehicle lamp control signal through the first signal transmission element, and controlling the on / off state of the helmet indicator lamp through the vehicle lamp control signal. The invention further discloses a vehicle system and a control method for the helmet indicator lamp. The headgear can receive the vehicle lamp control signal and actively shines for indicating, so that the aim of assisting a vehicle in performing dynamic warning for the running of the vehicle is fulfilled.

The invention discloses a control system for an AGV (Automatic Guided Vehicle) vehicle-mounted controller. A storage unit which is used for storing the map information of the movement area of an AGV marks each path of the AGV. A positioning module is used for detecting the real-time position information of the AGV, and transmitting the real-time position information to the controller. A line fineadjustment device is used for carrying out the fine adjustment (1-3 degrees) of the moving direction of the AGV. A positioning module is used for detecting the real-time position information of the AGV, and transmits the real-time position information to a controller. The controller compares the real-time position information with the path information stored in the storage unit. When the real-timeposition deviates from the path stored in the storage unit, the controller sends an instruction to the fine adjustment device, and the fine adjustment device controls the AGV to carry out the fine adjustment in a moving direction. The system provided by the invention guarantees the safety of the AGV on each path of a map especially when the AGV carries out the fine adjustment on an arc-shaped bent road or a straight road.

The invention discloses a sun-shading and lighting device at a tunnel entrance. The device comprises a sunshade, a solar panel, tunnel lamps and a light guide pipe, the sunshade is fixedly arranged atthe tunnel entrance to realize light and shade transition of the tunnel entrance section in order to weaken the black hole effect, the solar panel is arranged on the upper top surface of the sunshade, and is used for converting solar energy into electric energy, the electric energy is supplied to the tunnel lamps electrically connected with the solar panel and uniformly arranged on the inner topsurface of the whole tunnel for use, the light guide pipe is arranged at the top in the tunnel entrance section, and is used for guiding natural light into the tunnel entrance section in sunny days toprovide illumination in order to save energy and increase the light comfort level, the illumination of the tunnel entrance section in cloudy days or at night is supplemented by the tunnel lamps arranged at the tunnel entrance section, and the tunnel lamps behind the tunnel entrance section are turned on always, so the sun-shading and lighting device at the tunnel entrance reduces energy requiredby high-intensity lighting of the tunnel entrance section, the construction cost of the tunnel entrance section is reduced, the safety coefficient is increased, and meanwhile, the energy is saved.

The invention provides an automobile rear row monitoring device and a control method thereof. The automobile rear row monitoring device comprises an auxiliary instrument panel, and the rear end of anarmrest of the auxiliary instrument panel is provided with an interaction port facing the automobile rear row; a rear-row interaction component is contained in the internal space and comprises an information output unit, an identification unit and an intelligent control unit, and when the rear-row interaction component is observed from the outside of the auxiliary instrument panel, the informationoutput unit is exposed out of the interaction port; the information output unit interacts with a user in the rear row of the automobile through the intelligent control unit; the identification unit is in identification connection with the intelligent control unit and monitors the user state of the rear row. The invention discloses an automobile rear row monitoring device and a control method thereof. The rear-row interaction component capable of interacting with the rear-row passengers is arranged in the internal space of the armrest, the instruction of the rear-row passengers is obtained andfed back, interaction is conducted in time, attention of the rear-row passengers is attracted, the rear-row passengers are pacified in time, a front-row driver monitors the states of the rear-row passengers through the front-row interaction component, and safety of the rear-row passengers is guaranteed.

The invention provides a lifting hook, a mother ship, an unmanned ship launching and recovering system and an unmanned ship launching and recovering method, and the lifting hook comprises a lifting hook body which is provided with a bearing groove, a guiding hole and an unlocking hole, wherein the bearing groove is communicated with the unlocking hole, and the guide hole and the unlocking hole are arranged at an interval; a safety catch which is connected with the lifting hook body, wherein the safety catch resets to lock the bearing groove under the condition of no external force; a guiding cable which is movably arranged in the guiding hole in a penetrating mode, wherein the connecting end of the guiding cable is used for being connected with the unmanned ship, and the operating end of the guiding cable is used for being fixed to the mother ship; and an unlocking cable which is movably arranged in the unlocking hole in a penetrating mode, the connecting end of the unlocking cable is connected with the safety buckle, the operating end of the unlocking cable is connected with an operator, and the operator pulls the unlocking cable to drive the safety buckle to unlock the bearing groove; by adopting the technical scheme, the operation efficiency of recovering the unmanned ship is improved, the operation risk of operators is reduced, the refitting difficulty is reduced, the problem of frequently replacing the lifting appliance is avoided, and the operation is safe and convenient.

The invention discloses a wind resistance braking device at a vehicle end joint of a high-speed railway vehicle; the device comprises a wind resistance braking mechanism arranged on the end face side of a vehicle, and the wind resistance braking mechanism comprises a braking box fixed to the end face side of the vehicle and a braking unit arranged on the braking box in a penetrating mode through a telescopic unit. When the train runs normally, the braking unit is completely located in the braking box; when the train is braked, the braking unit extends out of the braking box through the telescopic unit. According to the wind resistance braking device for the vehicle end joint of the high-speed railway vehicle, the wind resistance braking mechanism is arranged to be matched with a mechanical braking structure of the train, the braking distance of the train can be effectively shortened, and the braking efficiency of the train is improved; the braking unit is arranged in the braking box located on the end face side of the train, the structural strength of the top end of the train is not damaged, aerodynamic resistance borne by the train during running is reduced, and energy consumption is effectively reduced.

The invention discloses a networked protection system and method for a railway power distribution system based on a GOOSE mode. The networked protection system comprises a railway power distribution system and a railway power distribution protection system, and is characterized in that the railway power distribution system comprises two incoming lines acting as a power supply and six busbars, two of the six busbars perform bus-coupling and are respectively connected with the two incoming lines, the busbar 1 and the busbar 2 are further respectively connected with a feeder line, a capacitor and a voltage regulator, the voltage regulators are further connected with the remaining four busbars, the remaining four busbars are respectively connected with through lines, and the railway power distribution protection system is matched with the six busbars and the feeder lines, the capacitors, the voltage regulators and the through lines which are connected with the busbars. The railway power distribution system adopting the above structure meets the requirements of reliability, selectivity, speediness and sensitivity of relay protection, and perfect protection for the whole railway power distribution system is realized.

The invention relates to a brake disc cooling method, in particular to a brake disc liquid cooling circulation method comprising the following steps that S1, an air cooling opening of a disc brake disc with a cooling cavity is sealed, a sealed cavity is formed, and a water inlet pipe and a water outlet pipe which communicate with the cooling cavity are arranged on the disc brake disc; S2, circulation water in a vehicle water tank is pumped out by a water pump and flows into the cooling cavity from the water inlet pipe; and S3, circulation water cooling the disc brake disc in the cooling cavityflows out from the water outlet pipe and flows back into the water tank. The problems that when cooled in a traditional air cooling mode, a disc brake disc also needs to be cooled in a matched waterspraying mode, but water resources are wasted in the modes, and driving safety is influenced are solved.

The invention discloses a method, device and equipment for controlling a vehicle and a storage medium, and relates to the technical field of vehicle control and automatic driving. The specific implementation scheme comprises the steps of acquiring driving information of the vehicle; receiving a basic safety message sent by other electronic equipment in the driving environment; determining whetherthe basic safety message is an abnormal message or not according to a pre-trained target message judgment model; and in response to determining that the basic safety message is not the abnormal message, determining a driving strategy of the vehicle according to the basic safety message and the driving information. According to the implementation mode, the basic safety message can be judged, and the tampered basic safety message is prevented from influencing the driving safety of the vehicle.

The present invention relates to a bridge hierarchical drainage system applied to a steel bridge deck and belongs to the bridge drainage field. The bridge hierarchical drainage system comprises drainage shallow channels, a plurality of vertically-arranged direct drainage pipes and centralized drainage pipes; the drainage shallow channels are located at two sides of the bridge deck; the water inlets of the direct drainage pipes and the centralized drainage pipes are located in the drainage shallow channels; the water inlets of the direct drainage pipes are higher than the groove bottoms of the drainage shallow channels and are lower than the groove surfaces of the drainage shallow channels; the water inlets of the centralized drainage pipes are lower than the groove bottoms of the drainage shallow channels; a water collection pipe distributed along the direction of a bridge is arranged at the lower side of the bridge deck; the lower ends of the centralized drainage pipes are connected with the water collection pipe; and the water collection pipe is connected with a wastewater treatment tank. With the bridge hierarchical drainage system of the invention adopted, rainwater on the deck can be quickly drained.

The invention discloses a tunnel portal condensate water and snow removing system which comprises a tunnel and a condensate water and snow removing device installed on the tunnel, the condensate water and snow removing device comprises a fan, a ventilation main pipe, a first ventilation auxiliary pipe, a second ventilation auxiliary pipe, a power source and a controller which are fixedly installed on the inner wall of the tunnel, and an air outlet is formed in an air opening adjusting device. A plurality of humidity sensors and temperature sensors are fixedly installed on the tunnel portal and the inner wall of the tunnel portal, and a plurality of snowfall monitoring sensors are fixedly installed on the outer side of the tunnel. According to the tunnel portal condensate water and snow removing system, an idle high-power fan is utilized for manufacturing the tunnel portal condensate water and snow removing system which is capable of monitoring the tunnel portal condition in real time. The hot air in the tunnel is blown to the inner wall of the tunnel portal and the road surface of the tunnel portal in time, snow falling on the road surface can be blown to the two sides of the road, snow freezing on the road surface is avoided, it can also be avoided that condensate water drips on the road surface to affect automobile driving safety, and the traffic safety of the tunnel portal is effectively guaranteed.

The invention discloses a truck with a mud transfer function, comprising a truck chassis. A mud storage tank is mounted at the top of the truck chassis; a mud pipe is mounted on the front surface of the mud storage tank; a lifting rod is mounted on one side of the front surface of the mud storage tank; an opening-closing rod is mounted on the other side of the front surface of the mud storage tank; a tank cover is fixed to one end of the mud storage tank; a cab is mounted on one side of the top of the truck chassis; a reinforcing guard with shock absorbing and impact preventing functions is mounted on each side crash barrier. When the truck is under driving and other vehicles impact on the crash barriers, the crash barriers may buffer impact force upon impacting, and great vibrations of the truck are avoided. A water pipe communicated with an inflow valve is mounted at the top of the mud storage tank; when the truck discharges mud from the mud storage tank, the inside of the mud storage tank can be spray-washed through a high-pressure nozzle so as to discharge the mud in the mud storage tank; the inside of the mud storage tank can also be washed.

The invention belongs to the technical field of railway construction equipment. A portable assembly type rail car comprises a front axle, a rear axle, bearing longitudinal beams, side carriage bodiesand a bearing bottom plate, wherein the front axle and the rear axle are correspondingly arranged front and back; the bearing longitudinal beams are detachably assembled between the front axle and therear axle; the bearing longitudinal beams, the front axle and the rear axle are assembled into a walking chassis; the side carriage bodies are detachably assembled on side parts of the walking chassis; the bearing bottom plate is detachably assembled on the walking chassis. A portable assembly type spraying operation system comprises the portable assembly type rail car, spraying equipment and anelectric control system. The invention further discloses a portable assembly type spraying operation method. The portable assembly type rail car can be formed by assembling all parts; the parts can bedisassembled in a transportation process to reduce a loading and transporting size, and therefore field long-distance light transportation can be achieved; rapid on-line and rapid on-site assembly from a step ladder construction entrance in a field line can be achieved, and practicability of equipment is greatly improved.

The invention relates to a simulation test method for a function of closing a safety loop of a sliding plug door of a motor train unit. The method comprises a step of verifying the function of closingthe safety loop of the sliding plug door of the whole motor train unit and a step of verifying the function of closing the safety loop of a single sliding plug door in sequence, wherein in the step of verifying the function of closing the safety loop of the single sliding plug door, a sliding plug door simulation debugging device is connected in series to the tested safety loop of the single sliding plug door, the opening and closing of the tested safety loop of the single sliding plug door can be simulated by operating the sliding plug door simulation debugging device, a specific door safetyloop fault is accurately reported on a cab monitoring screen, and a driver is guided to isolate a fault door, so that the safety loop of the sliding plug door of the whole motor train unit is recovered to normal, and the driving safety is ensured; and meanwhile, by utilizing the test method, the safety loop of the single sliding plug door can be verified one by one, the failure rate of vehicles leaving a factory is reduced, and the influence on the driving safety due to incomplete test is avoided.

The invention discloses a low-speed automatic driving method, device, equipment and storage medium. The method includes: obtaining an initial planned route, and controlling the vehicle to drive according to the initial planned route; obtaining road condition information on the road ahead according to the first scanning device installed on the vehicle; when determining that there is an obstacle on the road ahead according to the road condition information, determining The obstacle type corresponding to the obstacle; determine the corresponding target size requirement according to the obstacle type; when it is determined according to the road condition information that the obstacle does not meet the target size requirement, adjust the initial planning path according to the road condition information to obtain the adjusted planning path; The vehicle is controlled according to the adjusted planned path. When the obstacles on the road do not meet the size requirements of the obstacle type, adjust the planned path, identify the obstacles on the road that affect the normal function and performance of the vehicle, avoid the obstacles, and avoid the obstacles hindering the driving of the vehicle , affecting vehicle safety.

The invention provides a six-gear AMT (automatic mechanical transmission) gear position calibration method for hybrid automobiles. The angular-transducer-based AMT gear position calibration method is mainly used for gear position calibration in delivery test of AMT automatic transmissions of parallel hybrid passenger vehicles and gear position correction in use. Optimal control of gear position query paths is realized by setting up a gear coordinate system based on gear selecting and shifting motor angles, and automatic calibration and correction of all gear positions can be realized on the basis of known limited target point positions and AMT interior structural characteristics. All gear positions are calibrated by the aid of least extreme coordinate point information, calibration time is shortened, accuracy and optimization in gear position selection are guaranteed, errors in reverse gear selection can be prevented, and accordingly running safety of automobiles is guaranteed.

The invention provides a redundant power supply method for a sensor. The redundant power supply method is a redundant power supply technology applied to a vehicle-mounted sensor, can meet the power supply control requirement of a vehicle-mounted controller with a redundant structure on the same sensor, and achieves the purpose of providing a backup power supply for the sensor. According to the invention, a power supply failure of the sensor caused by failure of a single power supply control circuit is prevented from affecting the driving safety of the whole vehicle, requirements of different sensors for power supply amplitude and power supply precision can be met, and the protection functions of current protection, overvoltage protection, reverse connection protection, ESD electrostatic protection and the like can be met. A circuit constructed by using the redundant power supply method for the vehicle-mounted sensor in the invention is high in safety level and complete in function, a research and development period can be shortened, and the research and development efficiency of products is improved.

An error judgment prevention stopping inductor of a highway crossing ETC bar dropping device is composed of a distance induction device (1.1) and a motor stopping device (1.2). The distance induction device (1.1) is arranged on the front portion of the ETC bar dropping device (1), and the motor stopping device (1.2) is connected with the distance induction device (1.1) in series. Through the structure, when the motor stopping device (1.2) receives information sent by the distance induction device (1.1), a car stopping barrier is controlled in time, passing cars are made to pass directly, and the car stopping barrier is prevented from smashing the cars or influencing road running safety.

The invention discloses a reversing detection device which effectively solves the problem that driving safety of a special vehicle is affected due to the fact that a reversing radar of the special vehicle is short in operating distance and unstable in effect, and the reversing detection device comprises a signal receiving circuit and a signal processing circuit. The signal receiving circuit enables an ultrasonic signal, detected by the ultrasonic sensor U1, in a blind area of a special vehicle to pass through an amplification filter and a subtractor to obtain a difference signal, the signal receiving circuit transmits the difference signal and the ultrasonic signal to the signal processing circuit, and the signal processing circuit receives the ultrasonic signal and the difference signal through a summator and obtains alarm signals, and the controller is started by the alarm signals, so that the problem that the accuracy of the ultrasonic signal is not high due to the fact that the ultrasonic signal is influenced by severe weather such as rain, snow and fog is avoided.

A heavy-load steel rail welding structure control method belongs to the field of railway steel rail welding. The control method comprises the following steps: firstly, determining a corresponding martensite transformation starting temperature K1 and a martensite transformation ending temperature K2 according to the mass percent of each element in the adopted heavy-load steel rail and a cooling rate to be adopted; after welding is finished, the cooling rate of the weld joint position of the welding joint is firstly controlled to be 3-10 K / s, when the temperature is cooled to K1 + (30-60) K, thetemperature of the weld joint position of the welding joint is controlled, and the cooling rate of the weld joint position of the welding joint is reduced to be '0 jamaa0' 1.0 K / s; and when the temperature is continuously cooled to K2, naturally cooling to the environment temperature. According to the method, based on the heavy-load steel rails with different components, the abnormal martensite structure is effectively inhibited from being generated at the welding seam position of the steel rail welding joint by controlling the cooling rate of the welding seam position at the steel rail welding joint and K1 and K2, and the structure uniformity at the steel rail welding joint can be remarkably improved.

The invention provides a device for fastening wires and cables. The device comprises a support base, a movable ring for wire separation, a fastening ring, a sectional take-up mechanism for wire and cable taking up according to wire and cable erection conditions, and a wire and cable fastening mechanism for fastening wires and cables. The sectional take-up mechanism comprises a fastening anti-breaking mechanism for preventing breaking of short wires and cables and a wire and cable expansion and take-up mechanism for expanding the wires and cables and taking up the wires and cables. The fastening anti-breaking mechanism comprises a wire attaching body for attaching wires. The invention relates to the wire and cable field. The device for fastening wires and cables can fasten the wires and cables through wire and cable taking up and paying off, and can solve the problem of prediction length error during use; the device is simple in structure and convenient to operate; and compared with the prior art, the device is obviously lower in input cost, and effectively solves the problems that general wires and cables are easy to sag between telegraph poles, the wires and cables are easy to break near the poles, and the middle sag of the wires is easy to affect use and vehicle driving safety.

The invention discloses a time service method of a locomotive LKJ device. The method comprises the following steps: (1) establishing a WIFI wireless local network in a locomotive checking reservoir area and setting Beidou / GPS standard clock acquiring nodes; (2) obtaining Beidou / GPS standard clock information in real time by the Beidou / GPS standard clock acquiring nodes, and then issuing the standard clock information in the WIFI local network in the reservoir area through format conversion; (3) operating handheld terminals working in the same network environment, obtaining standard time refreshed in real time, and keeping time of the handheld terminals to be synchronous with time of a Beidou or GPS satellite in the WIFI wireless local network by a worker who enters the checking reservoir area or stands on a locomotive; (4) using a communication cable to connect a data read-write port of the LKJ device to realize time service of the LKJ device, thus ensuring that an error between an LKJ system clock and the standard time is far smaller than a standard error range in the industry.

The invention provides a car rear row monitoring device and its control method. The car rear row monitoring device includes a sub-instrument panel, and the rear end of the armrest of the sub-dashboard is provided with an interaction port facing the rear row of the car; the rear row interactive components are housed inside In the space, the rear interactive components include information output unit, identification unit and intelligent control unit. When viewed from the outside of the sub-dashboard, the information output unit is exposed from the interaction port; Interact; the identification unit and the intelligent control unit identify and connect, and monitor the status of users in the back row. Through the car rear monitoring device and its control method, the rear interactive components that can be used to interact with the rear passengers are set in the interior space of the armrest, and the instructions of the rear passengers are obtained and fed back, and the interaction is performed in a timely manner to attract the attention of the rear passengers The driver in the front row monitors the status of the passengers in the rear row through the interactive components in the front row to ensure the safety of the passengers in the rear row.