CN104881028A - Intelligent vehicle - Google Patents

Abstract

The invention discloses an intelligent car. Wherein, the smart car includes: a car body, a solar power supply module arranged on the car body, a drive module, an ultrasonic sensor, a steering gear, and a controller, wherein the solar power supply module includes a solar battery pack and is connected to the solar battery pack. The storage battery is connected to the front wheel axle through the drive module, the ultrasonic sensor is connected to the controller through the steering gear, and the controller is connected to the drive module. The invention solves the technical problems of environmental pollution and failure to avoid obstacles in time.

Description

a smart car

technical field

The invention relates to the field of intelligent control, in particular to an intelligent car.

Background technique

Smart car, that is, wheeled robot, is a kind of mobile robot. Its content covers the knowledge fields of machinery, automobile, electronics, automatic control, computer, sensor technology and other disciplines. As an emerging comprehensive technology, it can be widely used It is widely used in technical fields such as factory automatic feeding trucks and fixed-site trucks. It can also be used in complex and harsh working environments, and has a good application prospect.

However, the existing smart cars still need to use oil as an energy source, thereby polluting the environment, and when encountering obstacles, they cannot avoid them in time.

For the above problems, no effective solution has been proposed yet.

Contents of the invention

An embodiment of the present invention provides a smart car to at least solve the technical problems of environmental pollution and inability to avoid obstacles in time.

According to an aspect of an embodiment of the present invention, a smart car is provided, including: a car body, a solar power supply module arranged on the car body, a drive module, an ultrasonic sensor, a steering gear, and a controller, wherein the solar The power supply module includes a solar cell group and a storage battery connected to the solar cell group, the storage battery is connected to the front wheel axle through the drive module, the ultrasonic sensor is connected to the controller through the steering gear, and the control unit connected to the driver module.

In the embodiment of the present invention, the smart car is powered by the solar power supply module without using petroleum as an energy source, thereby reducing the pollution to the environment, and avoiding obstacles through the ultrasonic sensor and controller. Strong directionality, easy concentration of energy, etc., can produce reflection, interference, superposition and resonance phenomena, so the smart car can avoid obstacles in time through ultrasonic waves, thereby solving the technical problems of environmental pollution and failure to avoid obstacles in time .

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

Fig. 1 is a schematic top view of an optional smart car according to an embodiment of the present invention;

Fig. 2 is a side view schematic diagram of an optional smart car according to an embodiment of the present invention;

Fig. 3 is a front view structural schematic diagram of an optional smart car according to an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an optional smart car body according to an embodiment of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Fig. 1 to Fig. 3 are a kind of smart car provided by the embodiment of the present invention, as shown in Fig. 1 to Fig. 3, this smart car includes: car body 100, the solar power supply module that is arranged on this car body 100, drive module 101 , an ultrasonic sensor 102, a steering gear 103, and a controller 104, wherein the solar power supply module includes a solar battery pack 105 and a battery 106 connected to the solar battery pack 105, and the battery 106 is connected to the front wheel axle 107 through the drive module 101 , the ultrasonic sensor 102 is connected to the controller 104 through the steering gear 103 , and the controller 104 is connected to the driving module 101 .

Using the smart car provided by the embodiment of the present invention, the smart car is powered by the solar power supply module without using petroleum as energy, thereby reducing the pollution to the environment, and realizing the avoidance of obstacles through the ultrasonic sensor and controller, Due to the characteristics of strong directionality and easy energy concentration of ultrasonic waves, it can produce reflection, interference, superposition and resonance phenomena. Therefore, through ultrasonic waves, smart cars can avoid obstacles in time, thereby solving the pollution to the environment and the inability to avoid obstacles in time. technical problems.

In a possible implementation of the present invention, as shown in FIGS. At the front of the vehicle body 100 and corresponding to the positions of the front wheel 107 and the front wheel axle 108, the drive module 101 includes a drive chip arranged on the vehicle body 100 and a drive motor 1011 connected to the drive chip. The driving motor 1011 is connected with the front wheel axle 108, and is used to drive the front wheel axle to drive the movement of the front wheels, and control the steering of the front wheels through the front wheel axle.

The front end of this vehicle body is provided with ultrasonic sensor 102, and this ultrasonic sensor 102 is connected on the vehicle body 100 by steering gear 103, and is connected with this controller 104, is used for controlling the rotation of this ultrasonic sensor by steering gear, and this controller 104 It is arranged at the rear portion of the vehicle body, and a universal wheel 109 is arranged at a position corresponding to the controller on the lower side of the rear portion of the vehicle body, and the universal wheel 109 is connected to the vehicle body 100 through a universal wheel plate 110 to complete the steering of the universal wheel based on the universal wheel plate.

Wherein, the controller can be a single-chip microcomputer, and the universal wheel can be composed of a universal wheel shaft, a bracket and wheels.

It should be noted that the above-mentioned driver chip may be an L298N driver chip, and pin 9 of the L298N driver chip supplies logic voltage. Pin 4 is the input voltage of the driving part. The logic supply voltage requires a minimum input voltage of 4.5V and a maximum of 36V; the maximum voltage of the driving part is also 36V, and its pins 2, 3, 13, and 14 are the output terminals of the L298N chip input to the motor, of which pins 2 and 3. It can control two-phase motors. Pins 6 and 11 are the enabling pins of the motor, and pins 5, 7, 10, and 12 are the input pins of the single-chip microcomputer to the L298N chip.

Further, the ultrasonic transmitter includes an ultrasonic transmitter and an ultrasonic receiver, and the ultrasonic transmitter is connected to the ultrasonic receiver through an ultrasonic control module.

Wherein, the ultrasonic control module can be used to control the pulse chain frequency, duty cycle, sparse modulation, counting and detection distance of the ultrasonic waves emitted by the ultrasonic transmitter.

Optionally, the ultrasonic transmitter includes: a transmitting probe and a first transducer connected to the transmitting probe, the first transducer converts the kinetic energy generated by the vibration of the vibrator into ultrasonic waves, and transmits The probe emits the ultrasonic waves.

Optionally, the ultrasonic receiver includes: a receiving probe and a second transducer connected to the receiving probe, the receiving probe receives the ultrasonic wave transmitted by the ultrasonic transmitter and returns the ultrasonic wave reflected by the object, and passes the second transducer The energy device converts the kinetic energy generated by the returned ultrasonic wave to the vibration of the vibrator into an electrical signal, and sends the electrical signal to the controller.

It should be noted that the transducer includes a ceramic vibrator transducer.

As shown in Figures 1 to 3, a solar battery pack 105 is arranged on the surface of the vehicle body, and the solar battery pack 105 includes at least three solar battery panels connected in parallel, preferably three solar battery panels. The position corresponding to the solar cell group 105 at the bottom is provided with a storage battery 106, and is connected with the solar cell group 105 by wires, and is used for storing the electric energy sent by the solar cell panel when there is light, and when the smart car is working , and then released.

It should be noted that the storage battery can be a lead-acid battery, a nickel-hydrogen battery, a nickel-cadmium battery or a lithium battery.

In the embodiment of the present invention, in order to prevent the drive module from interfering with the controller, two power supply circuits can be used, one power supply circuit supplies power to the controller (such as a single-chip microcomputer), and one power supply circuit supplies power to the drive module.

Wherein, in the embodiment of the present invention, the solar cell group can use LM2577 booster circuit, the input voltage and output voltage are adjusted by the controller, the input voltage is about 5V, and the output voltage can reach more than 10V.

Further, the solar power supply module also includes: a solar control circuit (not shown in the figure), through which the solar cell group is connected to the storage battery, and is used to protect the storage battery from overcharging and overdischarging. In places with large temperature differences, the solar control circuit also has the function of temperature compensation.

Optionally, the smart car also includes: a light emitting device (not shown in the figure) arranged on the car body, the light emitting device is connected to the storage battery through the solar control circuit, and the solar control circuit is used to control the light emitting device to emit light . Wherein, the light emitting device may be an LED (Light-Emitting Diode, light-emitting diode) lamp.

During the movement of the smart car, the ultrasonic sensor emits ultrasonic waves through the ultrasonic transmitter, and the ultrasonic waves are reflected by obstacles and then transmitted to the ultrasonic receiver. The ultrasonic receiver receives corresponding electrical signals according to the ultrasonic waves and sends the electrical signals to to the controller, and the controller obtains the time difference between ultrasonic emission and echo reception and the propagation speed according to the electrical signal, calculates the propagation distance, and when the propagation distance is less than or equal to the preset distance, controls the drive module through the controller to drive The motor controls the deceleration and steering of the smart car to bypass the obstacle; of course, the smart car can also be controlled to stop when the propagation distance is less than or equal to the preset distance, so as to avoid collision with the obstacle. The specific implementation method can be It is realized by setting the controller. Similarly, after the smart car turns, it controls the steering of the ultrasonic sensor through the steering gear to continue emitting ultrasonic waves in the current direction.

It should be noted that since the smart car uses solar energy as power, the weight of the car is required to be as light as possible. Therefore, in the embodiment of the present invention, the car body and wheels are made of plastic materials under the premise of ensuring strength and hardness. To reduce the weight of the trolley as much as possible.

Fig. 4 is a structural schematic diagram of a car body of a smart car provided by an embodiment of the present invention. As shown in Fig. 4, both sides of the car body include concave structures for setting front wheels, wherein the length of the car body is 177 to 197 cm, preferably 187 cm, a width of 116 to 136 cm, preferably 126 cm, a thickness of the vehicle body of 10 to 20 cm, preferably 15 cm, and a length of the concave structure of 70 to 90 cm, preferably is 80 cm.

It should be noted that the front part of the car body described in the above-mentioned embodiments of the present invention is the part that the car body faces when the smart car is running normally, and the front end of the car body is the end of the front part of the car body. The rear portion of the body is the portion opposite to the front portion of the body.

Using the smart car mentioned above, the smart car is powered by the solar power supply module without using petroleum as energy, thereby reducing environmental pollution, and avoiding obstacles through ultrasonic sensors and controllers. Strong, easy to concentrate energy and other characteristics, can produce reflection, interference, superposition and resonance phenomenon, so the smart car can avoid obstacles in time through ultrasonic waves, and then solve the technical problems of environmental pollution and inability to avoid obstacles in time.

In the above embodiments of the present invention, the descriptions of each part have their own emphases, and a certain part is not described in detail, and reference may be made to related descriptions of other parts.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (10)

1. A smart car, characterized in that it comprises: a car body, a solar power supply module arranged on the car body, a drive module, an ultrasonic sensor, a steering gear, and a controller, wherein the solar power supply module includes a solar battery group and the storage battery connected to the solar cell group, the storage battery is connected to the front wheel axle through the drive module, the ultrasonic sensor is connected to the controller through the steering gear, and the controller is connected to the drive module connection. 2. The smart car according to claim 1, wherein the ultrasonic sensor comprises an ultrasonic transmitter and an ultrasonic receiver, and the ultrasonic transmitter is connected to the ultrasonic receiver through an ultrasonic control module. 3. The smart car according to claim 2, wherein the ultrasonic transmitter comprises: a transmitting probe and a first transducer connected with the transmitting probe, and the first transducer converts the vibration of the vibrator The generated kinetic energy is converted into ultrasonic waves, and the ultrasonic waves are emitted through the transmitting probe. 4. The smart car according to claim 2, wherein the ultrasonic receiver comprises: a receiving probe and a second transducer connected with the receiving probe, and the receiving probe receives the ultrasonic transmitter to transmit The ultrasonic wave is returned after being reflected by the object, and the kinetic energy generated by the returned ultrasonic wave on the vibration of the vibrator is converted into an electrical signal through the second transducer, and the electrical signal is sent to the controller. 5. The smart car according to claim 3 or 4, wherein the transducer comprises a ceramic vibrator transducer. 6. The smart car according to claim 1, wherein the solar battery pack comprises at least three solar battery panels connected in parallel. 7 . The smart car according to claim 1 , wherein the solar power supply module further comprises: a solar control circuit, and the solar cell group is connected to the storage battery through the solar control circuit. 8. The smart car according to claim 7, characterized in that, the smart car further comprises: a light emitting device arranged on the car body, the light emitting device is connected to the storage battery through the solar control circuit, The solar control circuit is used to control the light emitting device to emit light. 9. The smart car according to claim 1, wherein the controller comprises a single-chip microcomputer. 10. The smart car according to claim 1, wherein the drive module includes an L298N drive chip.