阅读说明：本技术 一种基于物联网的具有防护功能的无人驾驶汽车 (Unmanned vehicle with protection function based on Internet of things ) 是由 郗丹丹 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种基于物联网的具有防护功能的无人驾驶汽车包括底座、车身和四个车轮,所述底座的下方设有急停机构,所述车身的四侧均设有防护机构,所述急停机构包括支撑组件和两个拦截组件,所述拦截组件包括连通口、电磁铁、金属块、拦截板和斜块,所述防护机构包括防护板、驱动组件、阀门、气囊、连接管、气包和两个限位组件,该基于物联网的具有防护功能的无人驾驶汽车,通过急停机构使汽车迅速停在原地,避免汽车因惯性滑出而导致轮胎磨损,不仅如此,通过防护机构对行人和车体都起到保护作用,且可以反复使用,提高了实用性。(The invention relates to an unmanned vehicle with a protection function based on the Internet of things, which comprises a base, a vehicle body and four wheels, wherein an emergency stop mechanism is arranged below the base, protection mechanisms are arranged on four sides of the vehicle body, the emergency stop mechanism comprises a supporting component and two intercepting components, each intercepting component comprises a communicating port, an electromagnet, a metal block, an intercepting plate and an inclined block, and each protection mechanism comprises a protection plate, a driving component, a valve, an air bag, a connecting pipe, an air bag and two limiting components.)

1. The unmanned automobile with the protection function based on the Internet of things comprises a base (1), an automobile body (2) and four wheels (3), wherein the automobile body (2) is fixed above the base (1), the wheels (3) are connected with the lower portion of the base (1), the unmanned automobile is characterized in that an emergency stop mechanism is arranged below the base (1), the protection mechanisms are arranged on four sides of the automobile body (2), and a PLC (programmable logic controller) and a signal receiving and transmitting device are arranged in the automobile body (2);

the emergency stop mechanism comprises a supporting component and two intercepting components, the supporting component is positioned at the center of the lower part of the base (1), and the two intercepting components are respectively positioned in front of the two front wheels and in front of the two rear wheels;

the intercepting component comprises a communicating port, an electromagnet (4), a metal block (5), an intercepting plate (6) and an inclined block (7), the electromagnet (4) is fixed at the bottom in the base (1), the metal block (5) abuts against the lower side of the electromagnet (4), the communicating port is located below the base (1), the metal block (5) is fixedly connected with the inclined block (7) through the intercepting plate (6), the intercepting plate (6) penetrates through the communicating port, the height of one side, close to the wheels (3), of the inclined block (7) is smaller than that of the other side of the inclined block (7), and the electromagnet (4) is electrically connected with the PLC;

protection machanism includes guard plate (8), drive assembly, valve (9), gasbag (10), connecting pipe (11), gas bag (12) and two coupling assembling, and two coupling assembling are located the top and the below of one side of guard plate (8) respectively, guard plate (8) are connected with automobile body (2) through coupling assembling, drive assembly sets up the below at the coupling assembling of top, drive assembly is connected with valve (9), gasbag (10) are fixed on automobile body (2), one side of keeping away from automobile body (2) of guard plate (8) is equipped with the notch, the inner wall fixed connection of one side and notch of gas bag (12), gasbag (10) are through connecting pipe (11) and gas bag (12) intercommunication, valve (9) set up the one end that is close to gasbag (10) at connecting pipe (11).

2. The unmanned vehicle with the protection function based on the Internet of things is characterized in that the supporting component comprises a motor (22), a screw rod (23), a moving plate (24) and four limiting units, the motor (22) is fixed to the top of the base (1), the screw rod (23) is vertically arranged, the motor (22) is in transmission connection with the top end of the screw rod (23), a through hole is formed in the lower portion of the base (1), the bottom end of the screw rod (23) penetrates through the through hole, the moving plate (24) is located below the through hole, a screw hole is formed in the moving plate (24), the moving plate (24) is connected with the screw rod (23) through the screw hole, threads matched with the screw rod (23) are arranged in the screw hole, the limiting units are connected with the moving plate (24), and the motor (22) is electrically connected with a PLC.

3. The unmanned vehicle with the protection function based on the internet of things as claimed in claim 2, wherein a limiting plate (25) is fixed at the bottom end of the screw rod (23).

4. The unmanned vehicle with the protection function based on the internet of things of claim 2, wherein the limiting unit comprises a limiting rod (26) and a buffer block (27), four limiting holes are formed below the base (1), the limiting rod (26) is vertically arranged, the top end of the limiting rod (26) is located in the base (1), the bottom end of the limiting rod (26) penetrates through the limiting holes to be fixedly connected with the buffer block (27), and the limiting rod (26) is fixedly connected with the moving plate (24).

5. The unmanned vehicle with the protection function based on the Internet of things as claimed in claim 4, wherein the buffer block (27) is made of rubber.

6. The unmanned vehicle with the protection function based on the Internet of things as claimed in claim 1, wherein the driving assembly comprises a rack (13), a gear (14), a rotating shaft (15) and a fixing unit, the rack (13) is fixed on one side, close to the vehicle body (2), of the protection plate (8), the gear (14) is connected with the vehicle body (2) through the fixing unit, the gear (14) is meshed with the rack (13), the gear (14) is fixedly connected with the valve (9) through the rotating shaft (15), and the gear (14) and the rotating shaft (15) are coaxially arranged.

7. The unmanned vehicle with protection function based on Internet of things of claim 6, wherein the fixing unit comprises a bearing (16) and a connecting rod (17), the outer ring of the bearing (16) is fixedly connected with the vehicle body (2) through the connecting rod (17), and the rotating shaft (15) is fixedly connected with the inner ring of the bearing (16).

8. The unmanned vehicle with the protection function based on the Internet of things is characterized in that an anti-skid unit is arranged above the rack (13), the anti-skid unit comprises a fixing block (18) and an anti-skid block (19), the anti-skid block (19) is fixed above the rack (13), the fixing block (18) is connected with a connecting assembly above, and the anti-skid block (19) abuts against one side, close to the vehicle body (2), of the fixing block (18).

9. The unmanned vehicle with protection function based on internet of things of claim 8, wherein the connection assembly comprises an insertion rod (20) and a spring (21), one side of the protection plate (8) close to the vehicle body (2) is provided with two concave holes, one end of the insertion rod (20) is arranged in the concave hole, the other end of the insertion rod (20) is fixedly connected with the vehicle body (2), the spring (21) is sleeved on the insertion rod (20), two ends of the spring (21) are respectively fixedly connected with the protection plate (8) and the vehicle body (2), and the fixing block (18) is fixed on the insertion rod (20) above.

10. The unmanned vehicle with the protection function based on the Internet of things is characterized in that a distance sensor (28) is arranged on the vehicle body (2), and the distance sensor (28) is electrically connected with the PLC.

Technical Field

The invention relates to the field of unmanned automobiles, in particular to an unmanned automobile with a protection function based on the Internet of things.

Background

The unmanned automobile is an intelligent automobile, which can be called as a wheeled mobile robot, and mainly depends on an intelligent driver which is mainly a computer system in the automobile to realize unmanned driving. The unmanned automobile is an intelligent automobile which senses road environment through a vehicle-mounted sensing system, automatically plans a driving route and controls the automobile to reach a preset target. The vehicle-mounted sensor is used for sensing the surrounding environment of the vehicle, and the steering and the speed of the vehicle are controlled according to the road, the vehicle position and the obstacle information obtained by sensing, so that the vehicle can safely and reliably run on the road. The unmanned automobile integrates a plurality of technologies such as automatic control, a system structure, artificial intelligence, visual calculation and the like, is a product of high development of computer science, mode recognition and intelligent control technologies, is an important mark for measuring national scientific research strength and industrial level, and has wide application prospect in the fields of national defense and national economy.

The current unmanned vehicle is at the high-speed in-process of traveling, if emergency brake, the vehicle still can slide one section distance forward, slide the in-process and can cause very big wearing and tearing to the tire, there is certain potential safety hazard, moreover, although there is air bag in the car, nevertheless also can only pop out when the car suffers the striking, personnel in the protection car, and can only use once, the pedestrian that comes to the head on does not have safeguard measure, also can't avoid car itself to suffer the damage that the striking and caused, the practicality has been reduced.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the unmanned automobile with the protection function based on the Internet of things is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: an unmanned automobile with a protection function based on the Internet of things comprises a base, an automobile body and four wheels, wherein the automobile body is fixed above the base, the wheels are connected with the lower part of the base, an emergency stop mechanism is arranged below the base, protection mechanisms are arranged on four sides of the automobile body, and a PLC and a signal receiving and transmitting device are arranged in the automobile body;

the emergency stop mechanism comprises a supporting component and two intercepting components, the supporting component is positioned at the center below the base, and the two intercepting components are respectively positioned in front of the two front wheels and in front of the two rear wheels;

the intercepting component comprises a communication port, an electromagnet, a metal block, an intercepting plate and an inclined block, the electromagnet is fixed at the bottom in the base, the metal block abuts against the lower part of the electromagnet, the communication port is positioned below the base, the metal block is fixedly connected with the inclined block through the intercepting plate, the intercepting plate penetrates through the communication port, the height of one side, close to the wheel, of the inclined block is smaller than that of the other side of the inclined block, and the electromagnet is electrically connected with the PLC;

protection machanism includes guard plate, drive assembly, valve, gasbag, connecting pipe, gas bag and two spacing subassemblies, and two spacing subassemblies are located the top and the below of one side of guard plate respectively, the guard plate passes through spacing subassembly and body coupling, drive assembly sets up the below at the spacing subassembly in top, drive assembly is connected with the valve, the gasbag is fixed on the automobile body, one side of keeping away from the automobile body of guard plate is equipped with the notch, one side and the inner wall fixed connection of notch of gas bag, the gasbag passes through connecting pipe and gas bag intercommunication, the valve setting is at the one end that is close to the gasbag of connecting pipe.

Preferably, in order to prevent the wheel from sliding, the supporting assembly comprises a motor, a screw rod, a movable plate and four limiting units, the motor is fixed at the top of the base, the screw rod is vertically arranged, the motor is in transmission connection with the top end of the screw rod, a through hole is formed in the lower portion of the base, the bottom end of the screw rod penetrates through the through hole, the movable plate is located below the through hole, a screw hole is formed in the movable plate, the movable plate is connected with the screw rod through the screw hole, threads matched with the screw rod are arranged in the screw hole, the limiting units are connected with the movable plate, and the motor is electrically.

Preferably, in order to prevent the moving plate from separating from the screw rod, a limiting plate is fixed at the bottom end of the screw rod.

Preferably, in order to limit the moving direction of the moving plate, the limiting unit comprises a limiting rod and a buffer block, four limiting holes are formed in the lower portion of the base, the limiting rod is vertically arranged, the top end of the limiting rod is located in the base, the bottom end of the limiting rod penetrates through the limiting holes to be fixedly connected with the buffer block, and the limiting rod is fixedly connected with the moving plate.

Preferably, in order to play a role of buffering when the supporting component falls to the ground, the buffer block is made of rubber.

Preferably, in order to drive the valve and open, drive assembly includes rack, gear, pivot and fixed unit, the rack is fixed in the one side that is close to the automobile body of guard plate, the gear passes through fixed unit and is connected with the automobile body, gear and rack toothing, the gear passes through pivot and valve fixed connection, gear and the coaxial setting of pivot.

Preferably, in order to maintain the position of the rotating shaft unchanged, the fixing unit includes a bearing and a connecting rod, an outer ring of the bearing is fixedly connected with the vehicle body through the connecting rod, and the rotating shaft is fixedly connected with an inner ring of the bearing.

Preferably, in order to prevent the protection plate from falling off, an anti-slip unit is arranged above the rack and comprises a fixed block and an anti-slip block, the anti-slip block is fixed above the rack, the fixed block is connected with a limiting assembly above the fixed block, and the anti-slip block abuts against one side, close to the vehicle body, of the fixed block.

As preferred, for the moving direction of restriction guard plate, spacing subassembly includes gag lever post and spring, one side that is close to the automobile body of guard plate is equipped with two shrinkage pools, the one end setting of gag lever post is in the shrinkage pool, the other end and the automobile body fixed connection of gag lever post, the spring housing is established on the gag lever post, the both ends of spring respectively with guard plate and automobile body fixed connection, the fixed block is fixed on the gag lever post in the top.

Preferably, in order to detect the vehicle distance, a distance sensor is arranged on the vehicle body, and the distance sensor is electrically connected with the PLC.

The unmanned automobile with the protection function based on the Internet of things has the advantages that the automobile is rapidly stopped in place through the emergency stop mechanism, compared with the existing emergency stop mechanism, the emergency stop mechanism can reduce abrasion of tires caused by inertial sliding-out of the automobile, and moreover, the protection mechanism plays a role in protecting pedestrians and automobile bodies.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an unmanned vehicle with a protection function based on the Internet of things according to the invention;

FIG. 2 is a schematic structural diagram of an interception component of an unmanned vehicle with a protection function based on the Internet of things;

FIG. 3 is a schematic structural diagram of a support assembly of the IOT-based unmanned vehicle with protection of the present invention;

FIG. 4 is a schematic structural diagram of a protection mechanism of the unmanned vehicle with protection function based on the Internet of things, provided by the invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

in the figure: 1. the automobile comprises a base, a vehicle body, wheels, 4 electromagnets, 5 metal blocks, 6 intercepting plates, 7 oblique blocks, 8 protective plates, 9 valves, 10 airbags, 11 connecting pipes, 12 air bags, 13 racks, 14 gears, 15 rotating shafts, 16 bearings, 17 connecting rods, 18 fixing blocks, 19 anti-skidding blocks, 20 inserting rods, 21 springs, 22 motors, 23 lead screws, 24 moving plates, 25 limiting plates, 26 limiting rods, 27 buffer blocks and 28 distance sensors.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, an unmanned vehicle with a protection function based on the internet of things comprises a base 1, a vehicle body 2 and four wheels 3, wherein the vehicle body 2 is fixed above the base 1, the wheels 3 are connected with the lower part of the base 1, an emergency stop mechanism is arranged below the base 1, protection mechanisms are arranged on four sides of the vehicle body 2, and a PLC and a signal transceiver are arranged in the vehicle body 2;

a PLC, i.e., a programmable logic controller, which employs a programmable memory for storing therein a program, executing instructions for user-oriented operations such as logic operation, sequence control, timing, counting, and arithmetic operation, and controlling various types of machines or production processes through digital or analog input/output, is essentially a computer dedicated for industrial control, has a hardware structure substantially the same as that of a microcomputer, and is generally used for data processing and instruction reception and output for realizing central control.

In fact, be equipped with drive arrangement and brake equipment in the base 1, drive arrangement is connected with the 3 transmissions of wheel, and the car in-process of traveling, drive arrangement control gyro wheel rotates to drive base 1 and automobile body 2 and remove, under the condition that needs emergency stop, scram mechanism can be with base 1 lifting slightly, and brake equipment controls wheel 3 stall again, and protection machanism can be under the unable circumstances of avoiding the striking, protects the pedestrian and reduces the damage of automobile body 2.

The emergency stop mechanism comprises a supporting component and two intercepting components, the supporting component is positioned at the center of the lower part of the base 1, and the two intercepting components are respectively positioned in front of the two front wheels and in front of the two rear wheels;

as shown in fig. 2, the intercepting component comprises a communication port, an electromagnet 4, a metal block 5, an intercepting plate 6 and an inclined block 7, the electromagnet 4 is fixed at the bottom in the base 1, the metal block 5 abuts against the lower side of the electromagnet 4, the communication port is located below the base 1, the metal block 5 is fixedly connected with the inclined block 7 through the intercepting plate 6, the intercepting plate 6 penetrates through the communication port, the height of one side, close to the wheel 3, of the inclined block 7 is smaller than that of the other side of the inclined block 7, and the electromagnet 4 is electrically connected with the PLC;

when emergency parking is needed, the PLC controls the electromagnet 4 to stop electrifying, the metal block 5, the interception plate 6 and the inclined block 7 fall to the ground under the action of gravity, at the moment, the wheel 3 of the automobile does not stop rotating and can move upwards along the inclined plane of the inclined block 7 until the metal block abuts against the interception plate 6, when the electromagnet 4 stops electrifying, the PLC controls the supporting component to move downwards, the base 1 is lifted, the wheel 3 is not contacted with the ground any more, then the brake device controls the wheel 3 to stop rotating, and therefore the automobile can be prevented from sliding forwards after being braked suddenly, and abrasion to the wheel 3 is reduced.

As shown in fig. 4, the protection mechanism includes protection plate 8, drive assembly, valve 9, gasbag 10, connecting pipe 11, gas bag 12 and two coupling assembling, and two coupling assembling are located the top and the below of one side of protection plate 8 respectively, protection plate 8 passes through coupling assembling and is connected with automobile body 2, drive assembly sets up the below of the coupling assembling in the top, drive assembly is connected with valve 9, gasbag 10 is fixed on automobile body 2, one side of keeping away from automobile body 2 of protection plate 8 is equipped with the notch, the inner wall fixed connection of one side and the notch of gas bag 12, gasbag 10 is through connecting pipe 11 and gas bag 12 intercommunication, valve 9 sets up the one end that is close to gasbag 10 at connecting pipe 11.

When protection plate 8 suffers the striking, protection plate 8 can be to the direction removal that is close to automobile body 2 to open valve 9 through drive assembly, gasbag 10 receives the pressure that comes from protection plate 8, makes inside gas pass through connecting pipe 11 rapidly and enters into in the gas bag 12, and the inflation of gas bag 12 can play the guard action to the pedestrian, and protection machanism itself also can play the cushioning effect, reduces the damage that the impact led to the fact to automobile body 2.

As shown in fig. 3, the supporting component includes a motor 22, a screw rod 23, a moving plate 24 and four limiting units, the motor 22 is fixed at the top of the base 1, the screw rod 23 is vertically arranged, the motor 22 is in transmission connection with the top end of the screw rod 23, a through hole is arranged below the base 1, the bottom end of the screw rod 23 penetrates through the through hole, the moving plate 24 is located below the through hole, a screw hole is formed in the moving plate 24, the moving plate 24 is connected with the screw rod 23 through the screw hole, a thread matched with the screw rod 23 is arranged in the screw hole, the limiting units are connected with the moving plate 24, and the motor 22 is electrically connected with the PLC.

Preferably, in order to prevent the moving plate 24 from being separated from the screw 23, a stopper plate 25 is fixed to the bottom end of the screw 23.

Preferably, in order to limit the moving direction of the moving plate 24, the limiting unit includes a limiting rod 26 and a buffer block 27, four limiting holes are arranged below the base 1, the limiting rod 26 is vertically arranged, the top end of the limiting rod 26 is located in the base 1, the bottom end of the limiting rod 26 penetrates through the limiting holes to be fixedly connected with the buffer block 27, and the limiting rod 26 is fixedly connected with the moving plate 24.

When emergency parking is carried out, the PLC control motor 22 drives the screw rod 23 to rotate, the moving plate 24 moves downwards, the limiting rod 26 drives the buffer block 27 to abut against the ground, and therefore the base 1 and the automobile body 2 are lifted, even if the wheels 3 still rotate, the automobile can be parked in place, the supporting assembly can be used during automobile maintenance, and workers can conveniently detect the lower portion of the automobile.

Preferably, the buffer block 27 is made of rubber to buffer the landing of the support assembly.

The rubber can increase the friction between the buffer block 27 and the ground, so that the automobile can be rapidly stopped in place, and meanwhile, the rubber can play a role in buffering when the buffer block 27 is in contact with the ground.

As shown in fig. 5, the driving assembly includes a rack 13, a gear 14, a rotating shaft 15 and a fixing unit, the rack 13 is fixed on one side of the protection plate 8 close to the vehicle body 2, the gear 14 is connected with the vehicle body 2 through the fixing unit, the gear 14 is meshed with the rack 13, the gear 14 is fixedly connected with the valve 9 through the rotating shaft 15, and the gear 14 and the rotating shaft 15 are coaxially arranged.

When guard plate 8 receives the striking, drive rack 13 and remove, because gear 14 and rack 13 meshing, gear 14 can then rotate, drive valve 9 through pivot 15 and open, make the gas in the gasbag 10 pass connecting pipe 11 and enter into in the gas bag 12 to make protection machanism play the guard action.

Preferably, in order to keep the position of the rotating shaft 15 unchanged, the fixing unit comprises a bearing 16 and a connecting rod 17, an outer ring of the bearing 16 is fixedly connected with the vehicle body 2 through the connecting rod 17, and the rotating shaft 15 is fixedly connected with an inner ring of the bearing 16.

The bearing 16 keeps the position of the rotating shaft 15 unchanged, and the connecting rod 17 can block the air bag 10 from moving upwards, so that the air bag 10 is prevented from being punctured by the gear 14 or the rack 13.

Preferably, in order to prevent the protection plate 8 from falling off, an anti-slip unit is arranged above the rack 13, the anti-slip unit comprises a fixed block 18 and an anti-slip block 19, the anti-slip block 19 is fixed above the rack 13, the fixed block 18 is connected with a connecting assembly above, and the anti-slip block 19 abuts against one side, close to the vehicle body 2, of the fixed block 18.

As preferred, in order to restrict the moving direction of guard plate 8, coupling assembling includes inserted bar 20 and spring 21, one side of guard plate 8 that is close to automobile body 2 is equipped with two shrinkage pools, the one end of inserted bar 20 sets up in the shrinkage pool, the other end and the automobile body 2 fixed connection of inserted bar 20, spring 21 cover is established on inserted bar 20, the both ends of spring 21 respectively with guard plate 8 and automobile body 2 fixed connection, fixed block 18 is fixed on the inserted bar 20 of top.

The inserted bar 20 limits the moving direction of the protection plate 8, the spring 21 plays a role in buffering when the protection plate 8 is impacted, and the anti-skidding block 19 is abutted against the fixing block 18, so that the inserted bar 20 is prevented from being separated from the concave hole due to the fact that the spring 21 ejects the protection plate 8 when the protection plate 8 is not impacted.

Preferably, a distance sensor 28 is provided on the vehicle body 2 to detect the vehicle distance, and the distance sensor 28 is electrically connected to the PLC.

The distance sensor 28 detects the vehicle distance and sends a signal to the PLC, and when the vehicle distance is less than the prescribed vehicle distance, the scram controls the vehicle to stop in place.

When the automobile runs, the driving device controls the roller to rotate so as to drive the base 1 and the automobile body 2 to move, when emergency stop is needed, the PLC controls the electromagnet 4 to stop electrifying, the metal block 5, the interception plate 6 and the inclined block 7 fall to the ground under the action of gravity, at the moment, the wheel 3 of the automobile does not stop rotating and can move upwards along the inclined plane of the inclined block 7 until the wheel abuts against the interception plate 6, when the electromagnet 4 stops electrifying, the PLC controls the support component to move downwards, the base 1 is lifted up, the wheel 3 is not contacted with the ground any more, then the wheel 3 is controlled by the braking device to stop rotating, so that the automobile can be prevented from sliding forwards after emergency braking, the abrasion to the wheel 3 is reduced, when the protection plate 8 is impacted, the protection plate 8 can move towards the direction close to the automobile body 2, the valve 9 is opened through the driving component, and the air bag 10 is under the pressure from the, the air inside the air bag 12 rapidly passes through the connecting pipe 11, and the air bag 12 expands to protect pedestrians and the vehicle body 2.

Compared with the prior art, this unmanned car with safeguard function based on thing networking makes the car stop in the original place rapidly through scram mechanism, compares with current scram mechanism, and this scram mechanism can reduce the car because of the wearing and tearing that inertia roll-off caused the tire, moreover, all plays the guard action to pedestrian and automobile body through safeguard mechanism, compares with current safeguard mechanism, and this safeguard mechanism can use repeatedly, and design benefit has improved the practicality.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.