41results about How to "Good off-road" patented technology

The invention discloses a differential-steering unmanned motor vehicle. The differential-steering unmanned motor vehicle adopts an in-elbow drive technology, and a driving motor is put in a vehicle body. Compared with an adopted hub motor scheme, the size and weight requirements for the motor is reduced, the motor selection and adapting difficulty is greatly reduced, meanwhile a high-rotating-speed and high-power-density motor can be selected, higher power can be provided under the requirement that the vehicle weight is limited, and the maneuvering performance, especially the cross-country maneuvering performance of the vehicle is greatly improved. In addition, the motor and other large-mass parts are arranged inside a compartment, the unsprung mass of a suspension system is reduced, the response capability of a suspension is improved, meanwhile the moving load of the suspension is decreased, and the cross-country performance can be greatly improved.

The invention discloses an active swing arm type variable diamond four-wheel lunar rover moving system. The system comprises a diamond like vehicle frame, a front wheel, a rear wheel, a left wheel and a right wheel with an independent driving system positioned on the vehicle frame. The front wheel and the rear wheel are fixedly positioned on the vehicle frame via a front suspension system and a rear suspension system. The left wheel and the right wheel are fixedly positioned on the vehicle frame via the left suspension system and the right suspension system. The front suspension system and the rear suspension system comprise a swing arm type power mechanism and a steering mechanism. The front wheel and the rear wheel change direction in linkage. The left suspension system and the right suspension system comprise a swing arm type power mechanism. Adopting the structure of the four-wheel three-axis diamond chassis and the active swing arm, the invention initially plays the high-efficient mobility of wheel type driving mode and the crawling ability of foot type moving system, and the invention relates to the active swing arm type variable diamond four-wheel lunar rover moving system with simple and compact structure, low cost, being suitable for operation under various severs environments, wide application, good stability, high reliability and strong flexibility of steering.

The utility model discloses a rough-terrain wheeled crane of which all actions are driven in a full-hydraulic manner, and the rough-terrain wheeled crane can realize stepless speed change and has stable speed according to different work conditions, has the advantages of small impact, simple chassis arrangement, light complete vehicle weight, and is portable, safe and reliable in operation. The rough-terrain wheeled crane is provided with an electrohydraulic control system, a driving device and a steering device which are used for realizing fast switch among a plurality of driving modes and steering modes, thereby achieving small turning radius, fully exerting the power performances of an engine, improving the fuel oil economy and saving energy resources. The rough-terrain wheeled crane has a special underframe of an integral box type closed structure and is separately and rigidly suspended, an arc-shaped crane arm and an X-shaped telescopic support leg ensure good cross-country performance, mechanical property and working condition adapting performance of the entire rough-terrain wheeled crane during running and operating. The rough-terrain wheeled crane is convenient to maintain, and especially suitable for small construction places such as airports, oil fields, ports, wharfs, storehouses and other building sites.

The invention provides a field fertilizing pesticide spraying work belt driving snake-shaped robot, and relates to an agricultural pesticide spraying system which has the adjustable angle of a nozzle, an adjustable spraying amount, is controlled by a plant approximation detector and achieves multiple functions efficiently automatically with one control. The agricultural pesticide spraying system is composed of a belt type motor tractor, the plant approximation detector, a control unit, an energy supply unit, a second section wheel type carriage, medicine solution (liquid fertilizer) delivering units, the nozzle and other parts; all sections of carriages are connected through traction pins, and a liquid absorption pump and multiple sections of the medicine solution (liquid fertilizer) delivering units deliver medicine solutions through soft tubes. The pesticide spraying system has the advantages that driving through the belt is suitable for furrow climbing work; the plant approximation detector controls a switch of the nozzle through a detection signal, which makes spraying more reasonable and more efficient, and reduces pollution; an outer cavity of a 2 / 3 symmetric spherical cavity is matched by in tangent with a spherical inner cavity sphere, and the adjustable angle of the is big; one controller controls multiple snake-shaped robots, the automatic work degree is improved, and resources are saved.

The invention discloses a crawler-type double-car-body state adjusting method and a hydraulic system adopted by the method. The hydraulic system comprises a front car body and a rear car body which are connected through a hinge joint device. Hydraulic oil cylinders are arranged between the hinge joint device and the two car bodies, and the two hydraulic oil cylinders are connected with the hydraulic system. The hydraulic system controls the extensible lengths of the two hydraulic oil cylinders to enable the included angle formed by vertical faces of the two car bodies to be optionally adjusted at the connection position between an arch and a recess so as to adapt to the cross-country performance of a crawler-type double-car-body vehicle and the safety and stability during float-crossing. The hydraulic system for state adjustment of the front car body and the rear car body is simple in structure, efficiency and safe, can absorb partial impact force and vibration produced by the vehicle in running, enables the cross-country performance of the vehicle to be good and can improve the safety and stability during float-crossing. The whole layout of the hydraulic system is easily achieved. The hydraulic system is simple in operation and reliable in functions. A load-sensitive pump is introduced into the system, outputting is adjusted according to a feedback result, and an energy-saving role played. The running comfort, the cross-country passing ability and in-water float-crossing safety of the whole vehicle can be improved.

The invention discloses a multifunctional interconnected automobile suspension system, and relates to the technical field of automobile suspensions. The multifunctional interconnected automobile suspension system is characterized by comprising fluid dampers, connecting pipes and buffers, wherein the fluid dampers are respectively arranged at upper sides of an automobile, the fluid dampers located at the same end of the automobile are communicated with each other through the connecting pipes, and the connected connecting pipes are respectively connected to the buffers through other connecting pipes. The multifunctional interconnected automobile suspension system disclosed by the invention has the advantages of steady driving of the automobile, uniform force receiving of an automobile body and wide application scope, the integrated lifting of the automobile body can be controlled, all-around anti-pitching and anti-side-inclination functions are better, and the system is favorable for improving comfort and safety of the automobile.

The invention discloses a milling and polishing integrated crawler type industrial robot which comprises a cutter replacing device, a cutter angle adjusting device, a first mechanical arm, a second mechanical arm, a third mechanical arm, a machine base and two waking mechanisms. The two waking mechanisms are arranged on the two sides of the machine base through motors, the first mechanical arm is installed at the top end of the machine base through a steering engine, and one end of the second mechanical arm is connected with the first mechanical arm through a steering engine; and the third mechanical arm is connected with the other end of the second mechanical arm through a steering engine, the cutter angle adjusting device is connected with the third mechanical arm through a bolt, and the cutter replacing device is arranged on the cutter angle adjusting device. By means of the milling and polishing integrated crawler type industrial robot, workpiece milling and polishing integration is achieved, the problems of workpiece polishing complex programming and re-positioning errors are solved, operation is simple, and various machining requirements are met; and meanwhile, the crawler type waking mechanisms are adopted, on-site steering can be achieved, and the good self-resetting and obstacle climbing ability is achieved.

The invention relates to the technical field of a diesel engine-type emergency power van, in particular to a mobile diesel power generator. The mobile diesel power generator comprises a power generator main body (1), wherein the main body comprises inner blades (2), a motor rotation shaft (3) and an outer blade (4), a lightning rod (5) is arranged at the top of the rotor rotation shaft (3), the inner blades (2) are arranged in an upper layer and a lower layer and are all fixed by a diversion fixing disc (6), the inner blades (2) are in semi-circular shapes by bending a thin wall plate and are arranged in the upper layer and the lower layer, three blades in each layer are uniformly arranged, the blades in the upper layer and the lower layer are oppositely staggered by 60 degrees, so that a wind receiving surface without a dead angle is formed, and the power generation efficiency is higher.

The invention discloses a high-efficiency riding type four-drive mower. The four-drive mower comprises a frame, a shell, an engine, wheels, a seat, a mowing disc and a control part; the frame is provided with the wheels; the upper part of the frame corresponding to the front wheels is provided with the engine; the shell is arranged on the frame; the chair and the control part are fixedly arrangedon the shell; and the mowing disc is hung below the frame and between the front wheels and the rear wheels, and is connected with the frame through hydraulic regulating mechanisms, so that the mowingheight of the mowing disc can be adjusted. The mower provided by the invention has small volume, flexible operation and convenient operation, is comfortable to ride for a user, and has strong engine power, fast mowing operation speed and high efficiency; the four-drive mower is driven through a four-drive way, so that the road holding of the wheels is firm, the high-speed turning is more freely, the mower is easier to control, and the stable performance and movement performance of the mower can be increased simultaneously.

The invention discloses a four-wheel drive electric off-road vehicle (ORV) comprising a vehicle body, two front driving wheels, two rear driving wheels, a front transverse beam which is rotatably connected to the front end of the vehicle body, a rear transverse beam which is rotatably connected to the rear end of the vehicle body, a front connecting arm which is rotatably connected to the front transverse beam and connected to the front driving wheels and a rear connecting arm which is rotatably connected to the rear transverse beam and connected to the rear driving wheels, wherein the rotation center line of the front transverse beam and the rear transverse beam is parallel to the length direction of the vehicle body; and the front drive wheels and the rear drive wheels are provided with wheel hub motors. The four-wheel drive electric ORV of the invention has the advantages of good off-road performance, no noise, simple structure, low cost, safety, stability, reliability, easy driving, driving suitability for all kinds of people, good driving performance and good driving comfort on all kinds of complex roads.

The invention belongs to the technical field of engineering vehicles and discloses an APM train engineering vehicle. The APM train engineering vehicle comprises an engineering vehicle body, transmission shafts, a gearbox, a grounding device, a traction device, a limiting device, a guiding rail beam, a maintenance device, guiding wheels, guiding frames, guiding frame connecting pieces, steering frames, lifting oil cylinders, slewing bearings, connecting frames and steering rods. The slewing bearings are mounted under vehicle axles correspondingly, one ends of the steering frames are connected with the inner circles of the slewing bearings, and the other ends of the steering frames are connected with the guiding frames. The front portion and the rear portion of each vehicle axle are each provided with the corresponding pair of guiding frames, the guiding wheels are mounted below the guiding frames, and the lifting oil cylinders are mounted between the two guiding frames of the same side of the guiding beam. The connecting frames are mounted on the upper portion of the rear sides of the slewing bearings, the steering rods are symmetrically mounted on the connecting frames, the other ends of the steering rods are connected with the vehicle axles through the connecting rods, and the guiding wheels are each of an eccentric wheel structure. The APM train engineering vehicle takes the engineering vehicle body as the base, has the functions of APM train traction, line inspection, first-aid repair and the like and is convenient to operate, and one vehicle achieves multiple functions.

The invention discloses a wheel-track dual-purpose multifunctional belt opening machine which comprises a frame, a track walking chassis and a wheel type walking mechanism, and the wheel type walking mechanism comprises a front axle assembly, a front axle support, a front axle push-pull oil cylinder, a rear axle assembly, a rear axle support and a rear axle push-pull oil cylinder. The front axle assembly is assembled with the frame through a front axle support and driven by a front axle push-pull oil cylinder to ascend or descend, and the rear axle assembly is assembled with the frame through a rear axle support and driven by a rear axle push-pull oil cylinder to ascend or descend. The wheel-track dual-purpose multifunctional belt opening machine has a track type walking mode and a wheel type walking mode at the same time, the front axle push-pull oil cylinder and the rear axle push-pull oil cylinder drive the front axle assembly and the rear axle assembly to ascend and descend so that the walking modes can be switched, and the whole machine has the advantage of being good in cross-country performance in the track type walking mode; and moreover, the device has the advantage of high efficiency during wheel type transition (a plate trailer is not needed for consignment), and the convenience, the stability and the adaptability in the transfer process can be improved.

The invention relates to a multifunctional rubber tyre with good off-road performance as well as bulletproof, explosionproof and prick-proof performances. The tyre is provided with a plurality of layers of hidden key kavlar fiber materials to ensure that the temperature of the tyre is raised in an off-road process without any human casualty accidents and the tyre device with bulletproof, explosionproof and prick-proof performances can safely and reliably run on a highway.

The invention discloses an anti-drag crawler walking device with movable grousers. The anti-drag crawler walking device comprises supports, a belt wheel assembly mounted on the supports, a walking crawler around the belt wheel assembly and a guide rail with grousers keeping a corresponding spacing with the crawler, wherein a plurality of a grouser assembly capable of free movement is arranged on the walking crawler; and one end of the grouser assembly is placed inside a guide groove. The anti-drag crawler walking device with movable grousers has the advantages of easy manufacturing, simple structure, low cost, good off-road performance, high economical efficiency and the like.

The invention discloses a caterpillar track with adjustable track grouser height. The caterpillar track comprises a walking track, multiple through holes are formed in the walking track, telescopic track grousers capable of stretching out or retracting into the surface of the walking track are arranged in all the through holes, and elastic mechanisms making the telescopic track grousers stretch out of the surface of the walking track are arranged between the walking track and all the telescopic track grousers. The caterpillar track with the adjustable track grouser height has the advantages of being simple in structure, easy to manufacture, low in cost, high in cross-country performance, high in adaptability and defensive performance and the like.

The invention discloses an explosion effect wireless testing vehicle which comprises a testing vehicle body. An explosion effect wireless testing system, field calibration debugging equipment and an unmanned aerial vehicle remote image pickup system are arranged inside the testing vehicle body; and the explosion effect wireless testing vehicle is also provided with a measurement and control working table, a storage cabinet, an electric lifting rod, a small-sized convention area and a power supply and distribution system, wherein the measurement and control working table is used for fixedly measuring a server and a display thereof, and a seat is configured to the measurement and control working table; the storage cabinet is used for storing instrument equipment for testing and necessary tools and accessories; the electric lifting rod is used for erecting wireless networking equipment; the small-sized convention area is used for displaying, visiting, demonstrating and teaching a measurement result; a power distribution box is configured to the power supply and distribution system; a UPS is mounted in the power supply and distribution system; and the power supply and distribution system is used for supplying power to working of the instrument equipment, an air conditioner and illumination in the vehicle. The explosion effect wireless testing vehicle disclosed by the invention can provide a whole set of maneuverable and flexible wireless testing system, implementation scheme and measurement and control working room for a field chemical explosion test, and can greatly improve convenience and an intelligence level of testing an explosion effect.

The invention discloses a miniature mechanized small-granule crop sower applicable to a drought hilly area. The miniature mechanized small-granule crop sower applicable to the drought hilly area can ensure a high emergence rate, and has strong adaptability to terrain and soil. The miniature mechanized small-granule crop sower applicable to the drought hilly area adopts the technical scheme as follows: two ground wheels are arranged at the front end of a machine frame through a first transmission shaft; two pressing rollers are arranged at the back end of the machine frame through a roller carrier; an engine and a transmission are sequentially arranged on the machine frame; the engine transmits power to the transmission through a belt; two discharging mechanisms are positioned on the two sides of the machine frame between the transmission and the ground wheels respectively; the transmission transmits power to the first transmission shaft of the ground wheels and a second transmission shaft of the discharging mechanisms through a chain wheel structure respectively; a ditching mechanism is fixed to the lower part of the machine frame; the ditching mechanism is positioned under the discharging mechanisms; an earthing mechanism is movably arranged at the back part of the ditching mechanism; the pressing rollers, the discharging mechanisms, the ditching mechanism and the earthing mechanism are on the same straight line.

The invention relates to a high-passing-ability microbial inoculum spraying device. The spraying device comprises a tank body, a platform, a slurry spraying assembly, a transmission assembly, a stirring assembly, a crawler belt and a traction frame. Cooling pipes arranged on the inner wall of the tank body communicate with a circulating water pump arranged outside the tank body, a stirring shaft pipe is provided with streamline-shaped spiral blades, when a stirring shaft works, fluid flows upwards through the spiral blades and then falls down from the periphery, and microbial inoculum liquid materials are rapidly and fully mixed under the action of a flow guide plate of the tank body. A slurry pump is connected with a shooting gun through a hose. An output shaft belt wheel on one side of aspeed reducer of a power system is connected with a belt wheel on the slurry pump through a belt, the slurry pump is started, slurry is conveyed to the shooting gun through the hose, and slurry spraying operation is carried out; and an output shaft belt wheel on the other side of the speed reducer drives a belt wheel on an oil pump to operate, the oil pump is started, and therefore a hydraulic system is driven to work. The high-passing-ability microbial inoculum spraying device is provided with a cooling system, microbial inoculum generating high temperature in the stirring process can be rapidly cooled, and a crawler belt walking device is installed to guarantee high passing ability.

The invention discloses an intelligent tour guide auxiliary device for group use, which comprises a guide rover body, a controller for improving guidance and monitoring is arranged on the upper end ofthe guide rover body; the guide rover body comprises a guide rover body and a guide rover body. A main body of that guide probe vehicle comprises a probe roof plate, a door-type support frame, a motor support frame, a rotating motor, a driving rotating rod body, a driving gear wheel, a driven rotating rod body, a driven gear wheel, a chain, a steering gear, a steering rod body, a first rear steering wheel and a second rear steering wheel; A U-shaped bottom plate of that probe vehicle is arrange at the bottom of the probe roof plate, T-shaped support, A motor, a motor reducer, a first gear, afirst T-shaped bearing seat, a second T-shaped bearing seat, a rotating steering lever, a second gear mounted on the rotating steering lever, a transmission chain mounted between the first gear and the second gear, and a transmission chain driven by the motor to rotate the rotating steering lever. The intelligent degree of the invention is high.

The invention relates to a vehicle and a chassis structure thereof. The vehicle chassis structure (1) comprises: a chassis (10), a suspension structure connected with the chassis (10), a wheel structure (30) connected with the suspension structure and a drive mechanism connected with the suspension structure in a transmission way, the suspension structure comprises a main body (20), wherein the main body (20) comprises a first suspension end (210) and a second suspension end (220), the first suspension end (210) is connected with the chassis (10), and the second suspension end (220) is connected with the wheel structure (30); the drive mechanism comprises a driving part for driving the main body (20) to change the shape, so that the chassis (10) can be lifted or lowered relative to the wheel structure (30). The height of the chassis is reduced, so that the vehicle center of gravity can be reduced, and better stability is obtained. The height of the chassis is risen, the vehicle center of gravity can be risen, and better cross-country performance is obtained.

The present invention relates to one kind of all terrain vehicle, and features that the all terrain vehicle is provided with windshield, vehicle door, wheels, movable power arm on the vehicle body and capable of rotating by 360 deg around the vehicle body, battery jar, engine, and speed variable motor. Compared with available technology, the present invention has the advantages of high country crossing performance, high gradability and high obstacle surmounting performance.

The present invention relates to an automobile suspension system, at least comprising a first stabilizing unit, a second stabilizing unit and a hydraulic adjustment unit, the first stabilizing unit at least comprising a first hydraulic cylinder, a first stabilizing bar and a first stabilizing rod arranged at both ends of the first hydraulic cylinder The second stabilizing bar, the second stabilizing unit at least includes the second hydraulic cylinder and the third stabilizing bar and the fourth stabilizing bar arranged at both ends of the second hydraulic cylinder, the hydraulic adjustment unit includes at least the first stabilizing unit and the second stabilizing unit between the oil pipe and at least two non-same-side accumulators, when the vehicle is running, the first stabilizer bar, the second stabilizer bar, the third stabilizer bar and / or the fourth stabilizer bar are respectively based on the force exerted by the wheels to dynamically adjust the hydraulic pressure of the first hydraulic cylinder and / or the second hydraulic cylinder to form a hydraulic pressure difference between the first hydraulic cylinder and the second hydraulic cylinder, and at least one accumulator to absorb / release the first hydraulic cylinder and the second hydraulic cylinder The hydraulic pressure difference between the hydraulic cylinders dynamically adjusts the stressed state of at least one wheel.

The invention provides a double-triangular suspension frame wheel leg type all-terrain mobile robot. The robot includes a wheel leg robot body, a radar system arranged on the wheel leg robot body andfour wheel leg robot single legs symmetrically arranged at the front, rear, left and right portions of the wheel leg robot body, wherein each wheel leg robot single leg comprises an actuator, a triangular bracket connected with the actuator, a damping spring connected with the triangular bracket, a double-transverse-arm suspension frame connected with the damping spring, a steering motor connectedwith the double-transverse-arm suspension frame, a wheel leg body connected with the steering motor and a driving wheel which is connected with the wheel leg body and provided with a hub motor; the middle point of each triangular bracket is connected with the wheel leg robot body, and the two ends of each triangular bracket are connected with the corresponding actuator and the corresponding spring separately; each double-transverse-arm suspension frame includes an upper suspension frame control arm and a lower suspension frame control arm, one end of each upper suspension frame control arm and one end of each lower suspension frame control arm are hinged to the side surface of the wheel leg robot body, the other end of each upper suspension frame control arm and the other end of each lower suspension frame control arm are hinged to the corresponding steering motors, and the damping springs are connected with the upper suspension frame control arms. By adopting a four-wheel drive pattern, the robot can run within an angle of 360 degrees in different directions.

The invention discloses an underground granular explosive loading service cart, and belongs to the technical field of minelite filling. The underground granular explosive loading service cart comprises a front frame chassis and a rear frame chassis. An engine tandem pump assembly, a front drive wheel bridge, an electrical control system, an operating console, a hydraulic oil tank and a fuel tank are fixed to the front frame chassis. A rear driving wheel bridge, a work arm, an explosive loading system, an air compressor and a pneumatic system are arranged on the rear frame chassis. The front frame chassis is connected with the rear frame chassis through a central hinge device and a steering oil cylinder. The explosive loading system is connected with the air compressor and an air duct of the pneumatic system. A front frame and a rear frame are in a central hinged mode, and a hydrostatic drive technology, a double-motor four-wheel drive technology and a hydraulic steering chassis walking technology are adopted, so that the underground granular explosive loading service cart is high in mechanical performance and grade ability, good in cross-country performance, free of potential safety hazards and low in manual labor intensity and can be suitable for poor working conditions of underground mines, tunnels, underground building engineering and the like and overcome the defects in the prior art, and explosives can be conveniently and quickly loaded.

The invention discloses an intelligent tour guide auxiliary device for group use, which comprises a guide rover body, a controller for improving guidance and monitoring is arranged on the upper end ofthe guide rover body; the guide rover body comprises a guide rover body and a guide rover body. A main body of that guide probe vehicle comprises a probe roof plate, a door-type support frame, a motor support frame, a rotating motor, a driving rotating rod body, a driving gear wheel, a driven rotating rod body, a driven gear wheel, a chain, a steering gear, a steering rod body, a first rear steering wheel and a second rear steering wheel; A U-shaped bottom plate of that probe vehicle is arrange at the bottom of the probe roof plate, T-shaped support, A motor, a motor reducer, a first gear, afirst T-shaped bearing seat, a second T-shaped bearing seat, a rotating steering lever, a second gear mounted on the rotating steering lever, a transmission chain mounted between the first gear and the second gear, and a transmission chain driven by the motor to rotate the rotating steering lever. The intelligent degree of the invention is high.

The invention relates to an automotive suspension system. The system at least comprises a first stabilizing unit, a second stabilizing unit and a hydraulic adjusting unit, wherein the first stabilizing unit at least comprises a first hydraulic cylinder, and first and second stabilizing rods disposed at two ends of the first hydraulic cylinder; the second stabilizing unit at least comprises a second hydraulic cylinder, and third and fourth stabilizing rods arranged at two ends of the second hydraulic cylinder; the hydraulic adjusting unit at least comprises an oil pipe arranged between the first stabilizing unit and the second stabilizing unit and at least two energy accumulators on different sides. In the case of vehicle driving, the first stabilizing rod, the second stabilizing rod, the third stabilizing rod and / or the fourth stabilizing rod dynamically adjust the hydraulic change of the first hydraulic cylinder and / or the second hydraulic cylinder based on the force applied by the wheels so as to form the hydraulic difference between the first hydraulic cylinder and the second hydraulic cylinder. The at least one energy accumulator dynamically adjusts the stress state of the at least one wheel in a manner of absorbing / releasing the hydraulic pressure difference between the first hydraulic cylinder and the second hydraulic cylinder.

The invention discloses a traveling device and a moving chassis. The traveling device comprises a traveling wheel which is provided with a wheel surface; and a plurality of deformation blocks arrangedin the circumferential direction and arranged on the traveling wheel in a pivoted mode, wherein each deformation block is provided with a pivoting part, and each deformation block has a first state and a second state; in the first state, the deformation blocks are positioned on the inner side of the wheel surface; and in the second state, at least part of the deformation blocks extend out of thewheel surface, the parts, extending out of the wheel surface, of the deformation blocks form extending parts, and the extending parts are in a convex tooth shape and located in front of the pivoting parts in the rotating direction of the traveling wheel. The deformation blocks are arranged on the traveling wheel, each deformation block has the first state and the second state, so that the traveling wheel has the switchable normal state and cross-country state, the traveling wheel runs at a high speed in the normal state, and the traveling wheel has high road holding force in the cross-countrystate, can adapt to running in a complex severe environment, and has the excellent cross-country performance.

The invention provides a normalized differential vegetation index (NDVI) automatic measuring vehicle comprising a vehicle body in which a control circuit board is disposed. The control circuit board is provided with a central processor, a GPS module, an NVDI module, and a wireless communication module. The central processor is connected with the GPS module, the NVDI module, and the wireless communication module. The GPS module is used for acquiring the positional information of the measuring vehicle and sending the positional information to the central processor. The NVDI module is used for acquiring optical signals and sending the optical signals to the central processor. The central processor computes the NDVI by using an NDVI computational formula according to the optical signals and sends the NDVI and the positional information to a ground station terminal. The NDVI automatic measuring vehicle, by combining a measuring vehicle with NDVI measurement and using the advantages of small size, flexible movement, good off-road performance, and convenient operation of the measuring vehicle, may easily and rapidly acquire the vegetation index and provides correlative data for accurate farm crop nitrogen nutrition diagnosis.