CN111994519A

CN111994519A - Solar intelligent voice recognition garbage classification system

Info

Publication number: CN111994519A
Application number: CN202010857531.8A
Authority: CN
Inventors: 尹福祥; 乔勋; 尹可宁; 魏建敏; 祖约翰
Original assignee: Xijing University
Current assignee: Xijing University
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2020-11-27

Abstract

The invention discloses a solar intelligent voice recognition garbage classification system which comprises a single chip microcomputer, a power circuit, a reset circuit, a crystal oscillator circuit, a voice recognition module, a steering engine driving module, a voice prompt module and a state indication module, wherein the single chip microcomputer is respectively connected with the power circuit, the reset circuit, the crystal oscillator circuit, the voice recognition module, the steering engine driving module, the voice prompt module and the state indication module, and the voice recognition module is also connected with a voice command module.

Description

Solar intelligent voice recognition garbage classification system

Technical Field

The invention relates to the technical field of garbage classification, in particular to a solar intelligent voice recognition garbage classification system.

Background

In modern society, we are producers of garbage, and everyone of us is a victim of garbage, and if proper treatment of garbage is not done, its pollution capacity is far beyond our imagination. Pollution of garbage has become the most serious social problem in china. How to correctly classify and treat the garbage, avoiding direct contact between people and the garbage, and preventing bacteria attached to the garbage from causing harm to people is an environmental problem which is difficult to solve all the time.

Along with the passing of people, the garbage can which is taken as a container for isolating human beings from garbage becomes an irreplaceable object in the life of people, and is widely applied to the current markets of hotel supplies and household supplies. From the earliest "tunnel-type" to the present time becoming an independent entity, the construction of waste bins has also changed with the advancement of human society. But at present, the garbage can in our lives does not completely isolate people from garbage. People may even have "intimate contact" with the waste during the process of depositing the waste. Especially, in public places with many germs like hospitals, ordinary manual flip-type garbage cans or semi-open garbage cans cannot play a role in isolating germs and protecting human beings.

Disclosure of Invention

The invention aims to provide a solar intelligent voice recognition garbage classification system to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a solar energy intelligence speech recognition waste classification system, includes singlechip, power supply circuit, reset circuit, crystal oscillator circuit, speech recognition module, steering wheel drive module, voice prompt module and status indication module, the singlechip is connected power supply circuit, reset circuit, crystal oscillator circuit, speech recognition module, steering wheel drive module, speech prompt module and status indication module respectively, and speech recognition module still connects the voice command module.

As a further technical scheme of the invention: the voice command module is LD 3320.

As a further technical scheme of the invention: the power supply circuit outputs 5V and 3.3V voltages.

As a further technical scheme of the invention: the model of the steering engine driving module is SG 90.

As a further technical scheme of the invention: the voice module model is WT 588D.

As a further technical scheme of the invention: the model number of the infrared sensor module is TCRT 5000.

As a further technical scheme of the invention: the singlechip adopts an STC89C52RC singlechip.

As a further technical scheme of the invention: the electric energy of the power supply circuit comes from the solar module.

Compared with the prior art, the invention has the beneficial effects that: the invention has the advantages of simple structure, stable performance, convenient operation, low cost, intellectualization and the like, and provides a feasible solution for further isolating people from garbage and preventing people from infecting bacteria.

Drawings

FIG. 1 is an overall block diagram of the system hardware circuitry;

FIG. 2 is a pin diagram of STC89C52 RC;

fig. 3 is a reset circuit diagram.

FIG. 4 is a schematic diagram of a speech recognition module.

Fig. 5 is a schematic diagram of a stepper motor drive circuit.

Fig. 6 is an indication circuit schematic.

FIG. 7 is a voltage regulator circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, example 1: the utility model provides a solar energy intelligence speech recognition waste classification system, includes singlechip, power supply circuit, reset circuit, crystal oscillator circuit, speech recognition module, steering wheel drive module, voice prompt module and status indication module, the singlechip is connected power supply circuit, reset circuit, crystal oscillator circuit, speech recognition module, steering wheel drive module, speech prompt module and status indication module respectively, and speech recognition module still connects the voice command module.

The voice command module is LD3320 in model, and can work only by connecting a 5V power supply and then connecting a serial port communication port of the module with a serial port of the single chip. The power circuit is a module for supplying power to various chip modules in the system, and can respectively output 5V voltage and 3.3V voltage to provide power signals for the driving motor and the main controller. The model of the steering engine driving module is SG90, and a PWM signal is output by a port P24-P27 of the singlechip to control the rotation angle of the steering engine, so that the opening and closing of the dustbin cover are driven. The voice module model is WT588D, which has many I/O ports and has control function and external FLASH memory, so it can be used as FLASH single-chip computer and ordinary voice chip as slave. The model of the infrared sensor module is TCRT5000, AD sampling is carried out, and the AD sampling is transmitted to the CPU for collection and processing, so that whether a user needs to throw garbage or not is judged.

The pin diagram of the singlechip adopting STC89C52RC is shown in figure 2, and the functional characteristics are summarized as follows: the device comprises a 4K byte Flash memory, a 128 byte internal RAM, 32 programmable I/O port lines, 2 16-bit timers/counters, 1 5 vector two-stage interrupt structure, a full-duplex serial communication port, an on-chip oscillator and a clock circuit. The central processing unit CPU stops operating in the idle mode state, but in this state the random access memory RAM, the serial communication port, the timer/counter and the interrupt system are allowed to continue operating. In the power down mode, the contents of the RAM are saved, but the oscillator stops and all other components are disabled until the next hardware reset.

In order to avoid affecting the normal operation of the system after operation, when the single chip microcomputer starts to be started, the single chip microcomputer needs to be reset again, so that the CPU and all parts of the system are in initial states, and the single chip microcomputer starts to operate from the initial states. The common resetting modes are 2 types: manual reset and power-on reset. Because the system designed at this time is positioned in the dustbin, in consideration of the fact that in the actual use process, a manual reset button is installed outside the dustbin and is easy to be pressed by the coming and going people, so that the inconvenience is caused, and a power-on reset mode is used. The reset circuit diagram is shown in fig. 3, and the power-on reset circuit is formed by connecting a capacitor to a power supply Vcc terminal and then connecting a resistor to the ground on a reset input pin RST of the single chip microcomputer. The working principle of the power-on reset circuit is as follows: the reset circuit applies a transient signal to the RST end through a capacitor, and the capacitor is equivalent to a short circuit because the charging current of the capacitor is the maximum at the moment of electrifying, namely the RST is cut off to obtain a high-level signal. The high signal is gradually dropped following the charging of the capacitor by Vcc, so the duration of the high signal at the RST terminal depends on the charging time of the capacitor. Once the voltage across the capacitor reaches the same voltage value as the power supply Vcc, the current for charging the capacitor is reduced to zero, i.e., the capacitor is stopped to be charged, the capacitor is equivalent to an open circuit, the RST terminal is at a low level, and the program can normally run.

As shown in the figure 4, the voice recognition module is provided, and the LD3320 chip integrates high-precision A/D and D/A interfaces, and can realize the functions of voice recognition/voice control/man-machine conversation without externally connecting auxiliary Flash and RAM. Also, the list of identified key terms is dynamically editable. Based on the LD3320, the voice recognition/voice control/man-machine conversation function can be easily implemented in any electronic product, even the simplest 51 system as a main control chip. When the voice recognition module is used, only a 5V power supply needs to be connected, and then a serial port communication port of the module is connected with a serial port of the single chip to work.

The rotation of 4 steering engines is controlled in the project. The steering engine is a position servo driver and is suitable for control systems which need to change angles continuously and can be kept. The steering engine is mainly composed of a shell, a circuit board, a driving motor, a speed reducer and a position detection element. The working principle is that the receiver sends a signal to the steering engine, the IC on the circuit board drives the coreless motor to start rotating, the power is transmitted to the swing arm through the reduction gear, and meanwhile, the position detector sends back the signal to judge whether the positioning is achieved. The position detector is a variable resistor, and the resistance value changes along with the rotation of the steering engine, so that the rotation angle can be known by detecting the resistance value. In a general servo motor, a thin copper wire is wound around a three-pole rotor, and when a current flows through a coil, a magnetic field is generated to generate a repulsive interaction with a magnet on the periphery of the rotor, thereby generating a rotational acting force. According to the principles of physics, the moment of inertia of an object is proportional to the mass, so the force required to rotate an object with a larger mass is also larger. The steering engine has fast rotation speed and low power consumption, so that thin copper wire is wound into an extremely thin hollow cylinder to form an extremely light electrodeless hollow rotor, and a magnet is arranged in the cylinder, thus the hollow cup motor is formed.

The rotation angle of steering wheel is controlled to this design with singlechip P24-P27 mouth output PWM signal. The steering engine drive circuit is shown in fig. 3-4. The working principle is as follows: the PWM control signal is sent to a signal modulation chip of the steering engine by the singlechip to obtain direct current bias voltage. A reference circuit is arranged in the voltage difference output circuit, generates a reference signal with the period of 20ms and the width of 0.5ms, and compares the obtained direct current bias voltage with the voltage of a potentiometer to obtain the voltage difference output. And finally, outputting the positive and negative voltage difference to a motor driving chip to determine the positive and negative rotation of the motor. When the rotating speed of the motor is fixed, the potentiometer is driven to rotate through the cascade reduction gear, the voltage difference is 0, the motor stops rotating, and the purpose of driving the garbage can cover word switch is achieved.

The indicating circuit can visually display the working state of the garbage can, wherein the LED1 is a cover opening indicating lamp of the recyclable garbage can; the LED2 is a cover opening indicating lamp of the kitchen garbage can; the LED3 is an open-cover indicator lamp of other garbage cans; the LED4 is a harmful trash can open indicator light. The indicating circuit diagram is shown in fig. 6.

The singlechip of this design is the 5V power supply, and the pronunciation chip is the 3.3V power supply, so need a steady voltage chip here and fall 5V to 3.3V. The power module mainly uses a voltage stabilizing chip ASM1117-3.3V, pins 3 and 2 are input ends and output ends respectively, and pin 1 is grounded. After the external power supply is switched on, 5V voltage enters from the pin 3, and after voltage stabilization, 3.3V voltage is output from the pin 2 to supply power for the voice module. Capacitors C4 and C5 are power filter capacitors. The voltage regulator circuit is shown in FIG. 7. The power supply is the key to ensure the stable and reliable operation of the equipment. Adopt solar energy design, more environmental protection is convenient, and mains voltage will be pressed to steady voltage 5V by 12V and is converted into each voltage and give each part circuit module power supply, when using solar panel to charge or supply power, sunshine light is relatively weak, and when power is not enough, uses the lithium cell power supply consumption.

The method comprises the steps of designing hardware of each module of a control system of the voice recognition dustbin, combining basic knowledge and practical operation learned by the hardware, providing clear requirements and an implemented flow for a hardware circuit designed at this time, looking up various relevant literature data, gradually constructing a frame structure of each module, and finally making a schematic diagram. The success of a hardware module design is not only shown whether the functions of each module are realized respectively, but also whether each module can be matched together to realize the whole function of the hardware.

Embodiment 2, on the basis of embodiment 1, the electric energy of the power supply circuit comes from the solar module, and the power supply is the key for ensuring the stable and reliable operation of the equipment. Adopt solar energy design, more environmental protection is convenient, and mains voltage will be pressed to steady voltage 5V by 12V and is converted into each voltage and give each part circuit module power supply, when using solar panel to charge or supply power, sunshine light is relatively weak, and when power is not enough, uses the lithium cell power supply consumption.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a solar energy intelligence speech recognition waste classification system, includes singlechip, power supply circuit, reset circuit, crystal oscillator circuit, speech recognition module, steering wheel drive module, voice prompt module and status indication module, its characterized in that, power supply circuit, reset circuit, crystal oscillator circuit, speech recognition module, steering wheel drive module, speech prompt module and status indication module are connected respectively to the singlechip, and speech recognition module still connects the voice command module.

2. The solar intelligent speech recognition garbage classification system of claim 1, wherein the speech command module model is LD 3320.

3. The solar intelligent voice recognition garbage classification system according to claim 1, wherein the power circuit outputs 5V and 3.3V.

4. The solar intelligent voice recognition garbage classification system according to claim 1, wherein the type of the steering engine driving module is SG 90.

5. The solar intelligent speech recognition garbage classification system of claim 1, wherein the speech module model is WT 588D.

6. The solar intelligent voice recognition garbage classification system according to claim 1, wherein the infrared sensor module is of type TCRT 5000.

7. The solar intelligent voice recognition garbage classification system according to claim 1, wherein the single chip microcomputer is an STC89C52RC single chip microcomputer.

8. The solar intelligent speech recognition garbage classification system according to claim 3, wherein the power of the power circuit is from a solar module.