CN104083840A - Domestic intelligent fire engine control system - Google Patents

Abstract

The invention relates to a control system for a household intelligent fire truck, comprising a tracking module, a fire-seeking module, a fire-extinguishing module, an alarm module, a motor drive module and an MCU control module, the tracking module is respectively connected to the MCU control module and the motor drive module, and the fire-seeking module The module is connected to the MCU control module, and the MCU control module is respectively connected to the fire extinguishing module, the alarm module, and the motor drive module. The location of the fire source is compared, and the signal is sent to the MCU control module. The MCU control module controls the drive motor of the fire truck through the motor drive module, and at the same time controls the alarm module to emit an alarm sound, and the fire extinguishing module to extinguish the fire. Compared with the prior art, under the control of the control system of the present invention, the fire engine can automatically find the fire source, track, give an alarm and put out the fire.

Description

A household intelligent fire truck control system

technical field

The invention relates to a control system for a fire truck, in particular to a control system for a household intelligent fire truck. the

Background technique

Since the birth of the first industrial robot, the development of robots has spread across the fields of machinery, electronics, metallurgy, transportation, aerospace, and national defense. In recent years, the intelligence level of robots has been continuously improved, and it is rapidly changing people's lifestyles. In the process of continuous exploration, transformation and understanding of nature, it has always been a human dream to create machines that can replace people's work. the

Among them, the intelligent fire truck can be regarded as a typical representative of the robot. It needs to realize the automatic guidance function and obstacle avoidance function, so it must sense the guide line and obstacles, realize the automatic identification route, choose the correct travel route, use the sensor to perceive the route and judge and make corresponding execution actions. The design and development of intelligent fire trucks involves control, pattern recognition, sensor technology, automotive electronics, electrical, computer, machinery and other disciplines. It can be divided into three parts: sensor detection part, execution part, CPU. Today's intelligent fire trucks are developing rapidly. They can basically realize basic functions such as tracking, obstacle avoidance, patch detection, light-seeking storage, and cliff avoidance. There is a trend towards voice-activated systems. the

According to the statistical analysis of the data that caused the fires over the years, it can be clearly found that most of the fires occurred due to the negligence of indoor flammable materials, and there is no one in the current market that is more suitable for household fire prevention. tool. the

Contents of the invention

The purpose of the present invention is to provide a good home intelligent fire truck control system to overcome the above-mentioned defects in the prior art. the

The purpose of the present invention can be achieved through the following technical solutions:

A household intelligent fire engine control system includes a tracking module, a fire-seeking module, a fire-extinguishing module, an alarm module, a motor drive module and an MCU control module, the tracking module is connected to the MCU control module and the motor drive module respectively, and the The fire-seeking module is connected to the MCU control module, and the MCU control module is respectively connected to the fire extinguishing module, the alarm module, and the motor drive module, and the motor drive module is connected to the drive motor of the fire truck;

The fire-seeking module identifies whether there is a flame. If a flame is found, it sends a signal to the MCU control module. The tracking module identifies the obstacle and the location of the fire source. After comparison, it sends a signal to the MCU control module. The MCU control module is implemented by C language programming and MCU control The module sends signals to the motor drive module, and the motor drive module controls the rotation of the drive motor to move the fire truck to the fire source, and the MCU control module sends signals to the alarm module and the fire extinguishing module respectively, the alarm module sends out an alarm sound, and the fire extinguishing module extinguishes the fire After the fire extinguishing is completed, the MCU control module controls the rotation of the drive motor through the motor drive module, so that the fire truck returns to its original position. the

The tracking module includes an infrared photoelectric sensor and a comparator. There are four infrared photoelectric sensors connected to the MCU control module. The input terminals of the comparators are respectively connected to the output terminal of the MCU control module and the motor drive module. The output terminal is connected to the input terminal of the MCU control module. When there is an obstacle or a fire source in front, the output signal of the infrared photoelectric sensor is sent to the MCU control module, and the comparator compares the feedback signal of the motor drive module with the motor control signal output by the MCU control module , Obtain the obstacle avoidance and tracking signals of the fire truck, and then feed them back into the MCU control module. the

The fire-seeking module adopts infrared sensors, and there are three infrared sensors connected to the MCU control module. The infrared sensors sense the flame and send a signal of finding the flame to the MCU control module. the

Described fire extinguishing module comprises switch circuit, relay K, micromotor _M3 and fire extinguisher, and described switch circuit connects MCU control module and relay K respectively, and described relay K connects micromotor _M3 , and described micromotor M _3. Connect the switch of the fire extinguisher through the pull rope. After the switch circuit receives the control signal from the MCU control module, the circuit is turned on. The relay K supplies power to the micromotor _M3 . After the micromotor _M3 rotates, the switch of the fire extinguisher is turned on through the pull rope.

The alarm module adopts a piezoelectric buzzer. the

The motor drive module uses a motor drive chip L298N to control the rotation of the drive motor. the

The MCU control module adopts single-chip microcomputer AT89S52, and adopts C language programming to realize control. the

It also includes an A/D converter, the input end is respectively connected to the infrared photoelectric sensor and the fire-finding module, and the output end is connected to the MCU control module. the

The A/D converter adopts chip ADC0809. the

Compared with prior art, the present invention has the following advantages:

1) The present invention can not only report to the police in real time when a fire is found, but also can automatically track and find the fire source, and extinguish the fire source, so as to achieve the purpose of controlling and extinguishing the fire source. The entire control system is based on the MCU control module as the control core, using single-chip microcomputer AT89S52, and the single-chip microcomputer respectively controls the tracking module, alarm module, motor drive module, fire-seeking module, and fire-extinguishing module. The single-chip microcomputer should first collect signals, then process the collected signals, and then send these processed signals to the actuators controlled by each module, and control the corresponding actuators to make corresponding actions, thus completing the entire control of the single-chip microcomputer. the

2) The comparator in the present invention compares the feedback signal of the motor drive module with the motor control signal output by the MCU control module, and controls the motor more accurately after the comparison. the

3) The present invention controls the fire truck through the C language program written on the MCU control module. After the fire truck is extinguished, it can automatically return to its original position, which is convenient for the next tracking, early warning, and fire extinguishing. the

4) The present invention is suitable for household intelligent fire trucks, and the design cost of the control system is low, and the versatility is very strong, which can be transplanted. the

Description of drawings

Fig. 1 is the structural representation of household intelligent fire truck control system of the present invention;

Fig. 2 is the circuit diagram of household intelligent fire truck control system of the present invention;

Fig. 3 is a flowchart of the control system of the present invention. the

In the figure: 1. Tracking module, 2. Fire finding module, 3. Fire extinguishing module, 4. Alarm module, 5. Motor drive module, 6. MCU control module, 7. A/D converter, 8. Infrared photoelectric sensor , 9, comparator. the

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments. the

As shown in Figure 1, the home intelligent fire truck control system is installed on the fire truck. The fire truck has two drive motors M ₁ and M ₂ , including tracking module 1, fire finding module 2, fire extinguishing module 3, and alarm module 4 , motor drive module 5 and MCU control module 6, tracking module 1 includes four infrared photoelectric sensors 8 and a comparator 9, fire finding module 2 includes three infrared sensors, alarm module 4 includes piezoelectric buzzer LS1, resistor R ₃ , NPN transistor Q ₂ , fire extinguishing module 3 includes resistor R ₁ , resistor R ₂ , NPN transistor Q ₀ , PNP transistor Q ₁ , diode, relay and motor M ₃ , and motor drive module 5 adopts motor drive chip L298N , MCU control module 6 adopts single-chip microcomputer AT89S52, resistor R ₉ , switch S ₁ , capacitor IC ₁ , resistor R ₁₀ , and also includes A/D converter 7, which adopts chip ADC0809.

As shown in Figure 2, the following are the specific connection methods between devices and chips:

The tracking module 1 is respectively connected to the MCU control module 6 and the motor drive module 5, and the fire-seeking module 2 is connected to the MCU control module 6, that is, the infrared photoelectric sensor 8 and the fire-seeking module 2 in the tracking module 1 are respectively connected to the MCU control module 6 , wherein the input ends of the A/D converter 7 are respectively connected to the infrared photoelectric sensor 8 and the fire-finding module 2, and the output end is connected to the MCU control module 6, specifically: the four infrared photoelectric sensors 8 are respectively connected to the pins IN ₃ and IN of the ADC0809 ₄ , IN ₅ , IN ₆ , the three infrared sensors are connected to the pins IN ₀ , IN ₁ , IN ₂ of ADC0809 respectively, and the pins D4, D5, D6, D7 of ADC0809 are all connected to the pin T ₁ of the microcontroller AT89S52, which is the infrared Photoelectric sensor signal input, pins D ₀ , D ₁ , and D ₂ are all connected to pin T ₀ of the single-chip microcomputer AT89S52, which are infrared sensor signal inputs. The signal collected by the infrared photoelectric sensor 8 and the flame signal collected by the infrared sensor are A/D converted by ADC0809 and sent to the single-chip microcomputer AT89S52 to realize the tracking and fire-seeking functions;

Meanwhile, the input end of the comparator 9 in the tracking module 1 is respectively connected to the output end of the MCU control module 6 and the motor drive module 5, and the output end is connected to the input end of the MCU control module 6, specifically: the input end of the comparator 9 is connected to the single-chip microcomputer The output pins P0.2, P0.3, P0.4, P0.5 of the AT89S52, and the pins IN1, IN2, IN3, IN4 of the corresponding motor drive chip L298N, the feedback signal of the L298N and the drive motor output by the microcontroller The steering control signal is compared to obtain the tracking signal. The output of the comparator 9 is connected to the input pins P1.0, P1.1, P1.2, and P1.3 of the microcontroller AT89S52. After comparison, the drive can be better controlled motor. the

The fire extinguishing module 3 is connected to the MCU control module 6, specifically: one end of the resistor _R1 is connected to the pin P2.4 of the single-chip microcomputer AT89S52, the other end is connected to the base of the NPN transistor _Q0 , and the emitter of the NPN transistor _Q0 is grounded. The electrodes are respectively connected to one end of the resistor _R2 and the base of the PNP transistor _Q1 , the other end of the resistor _R2 and the emitter of the PNP transistor _Q1 are respectively connected to the power supply VCC, and the collectors of the PNP transistor _Q1 are respectively connected to the relay The pin a of K, the cathode of diode _D1 , the anode of diode _D1 , and the pin b of relay K are respectively connected to the ground, the pin c of relay K is connected to the power supply VCC, and the pin d is connected to the positive pole of micromotor _M3 . The negative pole of the micromotor _M3 is grounded, and the micromotor _M3 is connected to the switch of the fire extinguisher through a pull cord. When the AT89S52 pin P2.4 of the single-chip microcomputer is at a high level, Q ₀ , Q ₁ , and K are turned on, that is, the switching circuit formed by the triode and the relay K are turned on, the micro-motor M ₃ rotates, and the switch of the fire extinguisher is turned on to extinguish the fire.

Alarm module 4 is connected to MCU control module ₆ , specifically: one end of resistance R ₃ is connected to the pin _P2 . The electrodes are connected to the pin SPK of the piezoelectric buzzer LS1, and the pin SP1 of the piezoelectric buzzer LS1 is connected to the power supply VCC. When the pin P2.3 of the microcontroller AT89S52 is at a high level, Q ₂ is turned on, and the piezoelectric buzzer LS1 sounds to realize the alarm function.

The motor drive module 5 is respectively connected to the MCU control module 6 and the drive motors M ₁ and M ₂ of the fire truck, specifically: the input end of the motor drive chip L298N is connected to the single-chip microcomputer AT89S52 to receive control signals, specifically: the pins ENA, M2 of the chip L298N EN B is connected to pins P0.0 and P0.1 of single-chip microcomputer AT89S52 respectively, and is used to control the speed regulation signal input of the drive motor. Pins IN1, IN2, IN3 and IN4 of chip L298N are respectively connected to pin P0 of single-chip microcomputer AT89S52. 2. P0.3, P0.4, and P0.5 are signal inputs for controlling the steering of the drive motor; the output pins OUT1 and OUT2 of the chip L298N are connected to the drive motor M ₁ , and the output pins OUT3 and OUT4 are connected to the drive motor M ₂ . The motor drive chip L298N receives the control command of the single-chip microcomputer AT89S52 and then controls the forward and reverse rotation of the drive motor to realize the forward, backward, left and right turns of the fire truck.

The MCU control module 6 includes a single-chip microcomputer AT89S52 and its surrounding circuits, and the reset circuit includes: the pin RESET of the single-chip microcomputer AT89S52 is respectively connected to the negative pole of the resistor R ₉ , the resistor R ₁₀ , and the capacitor IC ₁ , and the other end of the resistor R ₉ is connected to one end of the switch S ₁ , the other end of the switch _S1 is respectively connected to the power supply VCC and the positive pole of the capacitor _IC1 , and the other end of the resistor _R10 is connected to the ground, and the microcontroller AT89S52 can be reset through the switch S1.

Wherein, R ₁ =R ₂ =4.7kΩ, R ₃ =2kΩ, R ₉ =1kΩ, R ₁₀ =10KΩ, IC ₁ =10μf.

As shown in Figure 3, the working process of the home intelligent fire truck control system is as follows: first, the microcontroller AT89S52 should be initialized, when the infrared sensor that can identify the flame finds the signal of the fire source, convert the signal into a voltage signal, and then This voltage signal is input to the ADC0809 for chip data conversion, which converts the voltage signal into a digital signal recognizable by the single-chip microcomputer AT89S52, and then inputs it to the single-chip microcomputer AT89S52, so that the motor drive chip can be controlled, and the motor drive chip controls the drive motor to start, and the drive motor starts Finally, the position of the fire source can be found out by the infrared photoelectric sensor 8 installed on the fire truck, and the fire truck can be moved to the fire source by controlling the drive motor to turn left, right, or forward and backward. When it reaches the front of the fire source, turn on the automatic switch of the fire extinguisher and give an alarm sound, and then start to extinguish the fire source, until the fire source is extinguished, the fire truck will track, and the microcontroller AT89S52 will reset. Thus the microcontroller AT89S52 completes the control of the intelligent fire extinguishing of the whole fire truck. Among them, the control program of the single-chip microcomputer is realized by programming in C language, which is written by referring to the programming pin on the single-chip microcomputer. The control program is as follows:

.

Claims (9)

1. a domestic intelligent fire fighting truck control system, it is characterized in that, comprise tracking module (1), seek fiery module (2), fire suppression module (3), alarm module (4), motor drive module (5) and MCU control module (6), described tracking module (1) connects respectively MCU control module (6) and motor drive module (5), the described fiery module (2) of seeking connects MCU control module (6), described MCU control module (6) connects respectively fire suppression module (3), alarm module (4), motor drive module (5), described motor drive module (5) connects the drive motors of fire fighting truck,

Seek fiery module (2) identification and whether have flame, if discovery flame, send a signal to MCU control module (6), tracking module (1) cognitive disorders and fire location, through comparing, send a signal to MCU control module (6), MCU control module (6) is realized by C Programming with Pascal Language, MCU control module (6) is to motor drive module (5) transmitted signal, motor drive module (5) is controlled the rotation of drive motors, make fire fighting truck move to fire location, and MCU control module (6) is respectively to alarm module (4) and fire suppression module (3) transmitted signal, alarm module (4) sends alarm sound, fire suppression module (3) is put out a fire, after fire extinguishing completes, MCU control module (6) is controlled the rotation of drive motors by motor drive module (5), make fire fighting truck get back to original position.

2. a kind of domestic intelligent fire fighting truck control system according to claim 1, it is characterized in that, described tracking module (1) comprises infrared photoelectric sensor (8) and comparator (9), described infrared photoelectric sensor (8) is four, connect MCU control module (6), the input of described comparator (9) connects respectively output and the motor drive module (5) of MCU control module (6), output connects the input of MCU control module (6), when having obstacle or burning things which may cause a fire disaster above, infrared photoelectric sensor (8) output signal sends to MCU control module (6), comparator (9) compares the motor control signal of the feedback signal of motor drive module (5) and MCU control module (6) output, keeping away that acquisition fire fighting truck travels hinders and tracking signal, again by its feed back input MCU control module (6).

3. a kind of domestic intelligent fire fighting truck control system according to claim 1, it is characterized in that, the described fiery module (2) of seeking adopts infrared sensor, described infrared sensor is three, connect MCU control module (6), infrared sensor produces induction to flame, sends the signal of finding flame to MCU control module (6).

4. a kind of domestic intelligent fire fighting truck control system according to claim 1, is characterized in that, described fire suppression module (3) comprises on-off circuit, relay K, micromotor M ₃and fire extinguisher, described on-off circuit connects respectively MCU control module (6) and relay K, and described relay K connects micromotor M ₃, described micromotor M ₃the switch that connects fire extinguisher by stay cord, turning circuit after on-off circuit reception MCU control module (6) control signal, relay K is to micromotor M ₃power supply, micromotor M ₃after rotation, by stay cord, open the switch of fire extinguisher.

5. a kind of domestic intelligent fire fighting truck control system according to claim 1, is characterized in that, described alarm module (4) adopts piezoelectric buzzer.

6. a kind of domestic intelligent fire fighting truck control system according to claim 1, is characterized in that, described motor drive module (5) adopts motor drive ic L298N, controls drive motors and rotates.

7. a kind of domestic intelligent fire fighting truck control system according to claim 1, is characterized in that, described MCU control module (6) adopts single chip computer AT 89S52, adopts C Programming with Pascal Language to realize and controls.

8. a kind of domestic intelligent fire fighting truck control system according to claim 2, it is characterized in that, also comprise A/D converter (7), input connects respectively infrared photoelectric sensor (8) and seeks fiery module (2), and output connects MCU control module (6).

9. a kind of domestic intelligent fire fighting truck control system according to claim 8, is characterized in that, described A/D converter (7) adopts chip ADC0809.