CN210631596U - Intelligent fire extinguishing system for engine room of automobile engine - Google Patents

Abstract

The utility model discloses an automobile engine cabin intelligence fire extinguishing systems relates to the automobile fire extinguishing technology field. The fire extinguishing spraying device comprises a single chip microcomputer unit, a manual control module, a fire source detection sensor, a temperature sensor, a power supply module, an LCD display module, a motor driving module, an alarm module, an SIM and communication module and a fire extinguishing spraying device. Through setting up fire source detection sensor and temperature sensor, this system adopts temperature sensing and fire source detection sensor compound mode real-time supervision engine compartment, and inform the driver with engine compartment state real-time display, temperature sensor data can effectually foresee the probability of taking place the conflagration in advance, for the driver and the crew provide the reference, eliminate latent conflagration dangerous situation, fire source detection sensor can effectually detect the conflagration, discovery fire source that can be quick, and the start fire extinguishing spray set that can be quick puts out a fire, need not open the engine compartment lid and put out a fire, thereby reduce the conflagration to vehicle loss.

Description

Intelligent fire extinguishing system for engine room of automobile engine

Technical Field

The utility model relates to an automobile fire extinguishing technical field specifically is an automobile engine cabin intelligence fire extinguishing systems.

Background

With the development of economy and social progress, the keeping quantity of various vehicles is continuously increased, under the condition that the service life of the vehicles is continuously increased, the problems of vehicle exposure are more and more, due to the problems of aging of electric circuits of an engine compartment, heat dissipation failure, oil leakage, self design and the like, the self-ignition of the vehicles is easily caused under the condition that the temperature of the engine compartment is overhigh, particularly in summer, because a fire disaster occurs in a closed engine compartment, a fire extinguishing agent is difficult to reach the inside of the engine compartment, and if an engine compartment cover is opened, the combustion of the engine compartment is accelerated, the fire extinguishing agent is difficult to extinguish.

Traditional many reserve fire extinguishers of car put out a fire, and the fire extinguisher is difficult to enter into the inside in engine compartment, leads to fire control effect generally, and traditional extinguishing device is difficult to early warning in advance moreover, in case burn, causes the loss bigger, leads to the result of use generally, for this reason, proposes an automobile engine cabin intelligence fire extinguishing systems and solves above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides an automobile engine cabin intelligence fire extinguishing systems possesses early warning in advance, the advantage of high and safe and reliable of fire extinguishing efficiency to there is the general problem of result of use in solving traditional automobile fire extinguishing device.

(II) technical scheme

For the purpose of realizing early warning, high fire extinguishing efficiency and safe and reliable, the utility model provides a following technical scheme: an intelligent fire extinguishing system for an automobile engine cabin comprises a single chip microcomputer unit, a manual control module, a fire source detection sensor, a temperature sensor, a power supply module, an LCD display module, a motor driving module, an alarm module, an SIM and communication module and a fire extinguishing spray device, wherein the output ends of the manual control module and the power supply module are electrically connected to the input end of the single chip microcomputer unit, the output ends of the fire source detection sensor and the temperature sensor are electrically connected to the input end of the single chip microcomputer unit in a bidirectional mode, the output end of the single chip microcomputer unit is electrically connected with the input ends of the LCD display module, the motor driving module, the alarm module, the SIM and the communication module respectively, and the output end of the motor driving;

the fire extinguishing spray device comprises a fire extinguishing agent storage tank, a submersible pump, an inlet pipe, an outlet pipe, a fan-shaped nozzle and a water valve, the submersible pump is arranged inside the fire extinguishing agent storage tank, the inlet pipe is fixedly arranged at the input end of the submersible pump, the outlet pipe is fixedly arranged at the output end of the submersible pump, the fan-shaped nozzle is fixedly arranged at one end, far away from the submersible pump, of the outlet pipe, and the water valve located at the top of the fire extinguishing agent storage tank is arranged between the outlet.

As an optimal technical scheme of the utility model, the inside of fire extinguishing agent storage jar is provided with the fire extinguishing agent, and the immersible pump setting is in the inside of fire extinguishing agent, the top of immersible pump is passed through the wire and is connected with the motor drive module electricity.

As an optimal technical scheme of the utility model, the single chip microcomputer unit is ATmega16 singlechip, establishes 16K flash memory, 32 IO mouth in this singlechip, and singlechip PC0 and PC1 are the temperature signal of temperature sensor monitoring and the fire source signal input port that the fire source detected sensor monitoring respectively, and PC0 reads temperature data, and PA0-PA5 port control LCD display module shows temperature data.

As an optimized technical proposal of the utility model, the temperature sensor adopts a DS18B20 digital temperature sensor, the temperature measuring range is minus 55 ℃ to plus 125 ℃, the precision is plus or minus 0.5 ℃ when the temperature is minus 10 ℃ to plus 85 ℃, and the inherent temperature measuring error is 1 ℃.

As the utility model discloses an optimized technical scheme, power module utilizes on-vehicle 12V battery power supply, and entire system uses the 12V power to carry out voltage conversion as the basis, and single chip unit, LCD display module, temperature sensor and fire source detection sensor's supply voltage is 5V.

As an optimized technical scheme of the utility model, alarm module adopts bee calling organ to report to the police.

(III) advantageous effects

Compared with the prior art, the utility model provides an automobile engine cabin intelligence fire extinguishing systems possesses following beneficial effect:

1. this automobile engine cabin intelligence fire extinguishing systems, through setting up fire source detection sensor and temperature sensor, this system adopts temperature sensing and fire source detection sensor complex mode real-time supervision engine cabin, and show engine cabin state real-time supervision driver and crew, temperature sensor data can effectually foresee in advance and take place the conflagration probability, provide the reference for driver and crew, eliminate latent conflagration dangerous situation, fire source detection sensor can effectually detect the conflagration, discovery fire source that can be quick, and can quick start fire extinguishing spray set put out a fire, need not open the engine cabin lid and put out a fire, thereby reduce the conflagration to vehicle loss.

2. This automobile engine cabin intelligence fire extinguishing systems, through setting up spray set of putting out a fire, spray set simple structure, the dependable performance, it is convenient to maintain, spray set adopts the integrated design, small occupation space is little, easily arrange, when needing to put out a fire, the immersible pump is taken out the inside fire extinguishing agent of fire extinguishing agent storage tank, spray the fuel surface through fan nozzle, form the one deck water film on the fuel surface, isolated air, the fire extinguishing efficiency is high, anti after combustion nature is strong, the fire extinguishing effect is good, adopt the mode that immersible pump and fan nozzle combined together, power and spray cover space problem have been solved, power supply simply only needs on-vehicle V power, need not other energy systems.

Drawings

FIG. 1 is a schematic view of a control system of the present invention;

FIG. 2 is a schematic view of the structure of the fire-extinguishing sprinkler of the present invention;

FIG. 3 is a schematic view of the control system of the single chip microcomputer unit of the present invention;

FIG. 4 is a schematic diagram of the display circuit of the DS18B20 and the LCD1602 according to the present invention;

FIG. 5 is a schematic diagram of the fire source detection circuit of the present invention;

FIG. 6 is a schematic diagram of a power supply voltage conversion circuit according to the present invention;

fig. 7 is a schematic diagram of the motor driving circuit of the present invention;

fig. 8 is a schematic circuit diagram of the SIM card module of the present invention.

In the figure: 1. a single chip unit; 2. a manual control module; 3. a fire source detection sensor; 4. a temperature sensor; 5. a power supply module; 6. an LCD display module; 7. a motor drive module; 8. an alarm module; 9. a SIM and a communication module; 10. a fire extinguishing sprinkler; 11. a fire extinguishing agent storage tank; 12. a submersible pump; 13. a water inlet pipe; 14. a water outlet pipe; 15. a fan-shaped spray head; 16. a water valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

referring to fig. 1-2, the utility model discloses an intelligent fire extinguishing system for an automobile engine cabin, which comprises a single chip microcomputer unit 1, a manual control module 2, a fire source detection sensor 3, a temperature sensor 4, a power module 5, an LCD display module 6, a motor driving module 7, an alarm module 8, an SIM and communication module 9, and a fire extinguishing spray device 10, the output ends of the manual control module 2 and the power supply module 5 are electrically connected with the input end of the singlechip unit 1, the output ends of the fire source detection sensor 3 and the temperature sensor 4 are both electrically connected with the input end of the single chip microcomputer unit 1 in two directions, the output end of the single chip microcomputer unit 1 is respectively and electrically connected with the input ends of an LCD display module 6, a motor driving module 7, an alarm module 8 and an SIM and communication module 9, the alarm module 8 adopts a buzzer for alarming, and the output end of the motor driving module 7 is electrically connected with the fire extinguishing spraying device 10;

fire extinguishing spray set 10 is including fire extinguishing agent storage jar 11, immersible pump 12, inlet tube 13, outlet pipe 14, fan-shaped nozzle 15 and water valve 16, the inside of fire extinguishing agent storage jar 11 sets up immersible pump 12, the fixed inlet tube 13 that sets up of input of immersible pump 12, the fixed outlet pipe 14 that sets up of output of immersible pump 12, the fixed fan-shaped nozzle 15 that sets up of one end that immersible pump 12 was kept away from to outlet pipe 14, set up the water valve 16 that is located the 11 tops of fire extinguishing agent storage jar between outlet pipe 14 and the immersible pump 12, the setting of water valve 16 is convenient for carry out flow control to the fire extinguishing.

Specifically, the inside of fire extinguishing agent storage jar 11 is provided with the fire extinguishing agent, and immersible pump 12 sets up the inside at the fire extinguishing agent, immersible pump 12's top is passed through wire 17 and is connected with motor drive module 7 electricity, and the motor drive module 7 of being convenient for carries out circuit control to immersible pump 12, reaches the purpose of simple operation.

Specifically, referring to fig. 3, the single chip unit 1 is a key of the circuit design of the whole system, the single chip needs to analyze temperature data and fire source signals and output corresponding control signals, in order to make the circuit simple, work stable, anti-interference strong, power consumption low, etc., the single chip selects Atmel corporation ATmega16 single chip, the single chip has rich instruction set, has the advantages of 16K flash memory, 32I/O ports, fast operation speed, etc., and supports debugging and programming in chip, the driving capability of the output port is strong, the related driving circuit can be simplified, the single chip unit 1 has simple circuit, only needs crystal oscillator circuit and reset circuit to form a single chip unit 1, the single chips PC0 and PC1 are input ports of temperature signals and fire source signals, respectively, the PC0 reads temperature data, the PA0-PA5 port controls the LCD to display temperature data, when the temperature reaches a preset value, the port of the single chip microcomputer PC4 controls the LED lamp to emit light and give out light warning, meanwhile, the port of the PC7 outputs high level signals to control the MOS tube and control the buzzer to give out sound warning, when the port of the PC1 reads flame signals, the ports of the single chip microcomputer PD0 and the single chip microcomputer PD1 output control signals to control the motor driving module to enable the water pump to work through calculation, analysis and judgment, and the fire extinguishing spraying device is started to realize fire extinguishing.

In particular, the temperature sensor 4 in the system adopts a DS18B20 digital temperature sensor, the temperature measuring range is-55 to +125 ℃, the precision is +/-0.5 ℃ at-10 to +85 ℃, the inherent temperature measuring error is 1 ℃, under the normal working condition of the automobile, because the front is provided with cooling liquid, a radiator and the like, the highest temperature in the engine compartment is between 70 and 90 ℃, therefore, the DS18B20 meets the index requirements of the system on temperature measurement, the packaged DS18B20 can be used for temperature measurement of various complex environments such as blast furnace water circulation temperature measurement, boiler temperature measurement, machine room temperature measurement and the like, therefore, the packaged DS18B20 can also meet the temperature detection requirement in the engine compartment, and meanwhile, when the DS18B20 is connected with the single chip microcomputer, the two-way communication with the single chip microcomputer can be realized only by one line, in the system, the DS18B20 is connected with a PC0 port of a singlechip, and the singlechip unit 1 carries out bidirectional data transmission with the DS18B20 through a PC0 port.

Specifically, as shown in fig. 4, the data displayed by the system mainly includes temperature, fire information, working state of the fire sprinkler 10, etc., and the displayed content is relatively simple, so that an LCD1602 display is selected, the display can display 2 lines and 16 characters, the requirement of the system on display is met, the external circuit is relatively simple, 4 lines are adopted for parallel driving, and the display function can be realized only by connecting 4I/O ports.

Specifically, as shown in fig. 5, the fire source detection circuit of the fire source detection sensor 3 mainly functions to detect a fire source, and outputs a signal when the fire source exists, the single chip microcomputer unit 1 realizes a control function according to the signal, the engine compartment of the automobile is a relatively closed space, the optical environment is relatively single, especially, the characteristics in the near infrared spectrum range are almost zero, the interference from the outside is relatively small, especially, the interference from the sun light is almost zero, and the fire source detection distance is 1 to 2 meters, which can meet the requirement. Therefore, the circuit design adopts the LM393 comparator, the near infrared photosensitive diode, the adjustable resistor and other devices to realize the fire source detection function, when the fire source exists, the near infrared photosensitive diode is conducted to enable the D0 port to output low level, the single chip microcomputer determines whether the fire source exists or not through the judgment of the level signal, the sensitivity of the single chip microcomputer can be adjusted through the precise adjustable resistor, and the single chip microcomputer can be adjusted according to the on-site environment condition during installation and debugging, so that the detection effect is optimal.

Specifically, referring to fig. 6-7, the power module 5 is powered by a vehicle-mounted 12V battery power source, therefore, the whole system design is that voltage conversion is carried out on the basis of a 12V power supply, the power supply voltage required by the singlechip unit 1, the LCD display module 6, the temperature sensor 4, the fire source detection sensor 3 and the like is 5V, therefore, the power supply system adopts a 7805 voltage stabilizing chip to reduce the voltage of 12V to 5V, the 12V direct current submersible pump 12 is adopted in the fire-extinguishing spraying device 10, and the control signal output by the singlechip can not directly drive the submersible pump 12, so that a motor driving circuit is required to be designed in the system to realize the control of the submersible pump 12, according to the requirement of the fire extinguishing spraying device 10 on the spray area and the water flow, the submersible pump 12 has the power requirement of about 24W, and an L298N motor driving chip is selected according to the index requirement, and the chip is mainly characterized in that: the working voltage is high, the highest working voltage can reach 46V, the output current is large, the instantaneous peak current can reach 3A, the continuous working current is 2A, the rated power is 25W, the performance index of the chip meets the design requirement of the system, the motor driving circuit is relatively simple, only the chip is required to output the driving port to enable, even if the EA port is high level, the control signal of the single chip microcomputer is input from the ports IN1 and IN2, the output ports OUT1 and OUT2 of the chip are controlled, the control on the working and stopping of the motor is realized, and the control on the spraying device is realized.

Specifically, as shown in fig. 8, the SIM80OC module in the SIM and communication module 9 is a high-performance, high-cost-performance, industrial-level GSM/GPRS module, and this module uses an industrial-level quad-band 850/900/18001900 MHz SIM800 chip of SIMCOM company, so that it can implement transmission of voice, SMS, data, and fax information with low power consumption.

The utility model discloses a theory of operation and use flow: when the system is used, after the whole system is powered on, the single chip microcomputer program carries out system initialization, the port of each single chip microcomputer is defined, the value is preset and the like, when the system works stably, the data communication between the single chip microcomputer and each external module is started, the single chip microcomputer collects the data of the temperature sensor 4, analyzes the data and displays the data on the LCD display module 6 in real time, the highest temperature of an engine compartment is 70-90 ℃ under the continuous working state of an automobile engine, the system sets that when the temperature of the engine compartment is higher than 90 ℃, the fire danger level is displayed to be one star, one star is added when 4 ℃ is added, the fire danger level of the engine compartment is prompted, when five stars are reached, namely when the temperature reaches 110 ℃, the highest probability of fire is reached, the system sends out acousto-optic warning, when the temperature is higher than 90 ℃, the fire source detection sensor 3 starts to detect the data, after the single chip microcomputer, the system delays 5S to continuously interpret the flame signal; if the flame signal disappears, the system returns to continue waiting for the flame signal; if the flame signal lasts, then utilize the bee calling organ among the alarm module 8 to carry out the police dispatch newspaper, will start fire sprinkler 10 after flame signal duration 10S and put out a fire, when needing to put out a fire, immersible pump 12 takes out the fire extinguishing agent of 11 insides of fire extinguishing agent storage jar, spray to the fuel surface through fan-shaped nozzle 15, form the one deck water film on the fuel surface, isolated air, high fire extinguishing efficiency, anti after-combustion nature is strong, the fire extinguishing effect is good, if the conflagration takes place for the manual work affirmation this moment, can directly start fire sprinkler 10 by manual module and put out a fire, if the false alarm also can relieve the alarm through manual module.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an automobile engine cabin intelligence fire extinguishing systems, includes single chip microcomputer unit (1), manual control module (2), fire source detection sensor (3), temperature sensor (4), power module (5), LCD display module (6), motor drive module (7), alarm module (8), SIM and communication module (9), fire extinguishing spray set (10), its characterized in that: the output ends of the manual control module (2) and the power supply module (5) are electrically connected to the input end of the single chip microcomputer unit (1), the output ends of the fire source detection sensor (3) and the temperature sensor (4) are electrically connected to the input end of the single chip microcomputer unit (1) in a bidirectional mode, the output end of the single chip microcomputer unit (1) is electrically connected to the input ends of the LCD display module (6), the motor driving module (7), the alarm module (8) and the SIM and communication module (9) respectively, and the output end of the motor driving module (7) is electrically connected to the fire extinguishing spraying device (10);

fire extinguishing spray set (10) is including fire extinguishing agent storage jar (11), immersible pump (12), inlet tube (13), outlet pipe (14), fan-shaped nozzle (15) and water valve (16), the inside of fire extinguishing agent storage jar (11) sets up immersible pump (12), the fixed inlet tube (13) that sets up of input of immersible pump (12), the fixed outlet pipe (14) that sets up of output of immersible pump (12), the fixed fan-shaped nozzle (15) that sets up of one end that immersible pump (12) were kept away from in outlet pipe (14), set up water valve (16) that are located fire extinguishing agent storage jar (11) top between outlet pipe (14) and immersible pump (12).

2. The intelligent fire extinguishing system for the engine compartment of the automobile according to claim 1, wherein: the inside of fire extinguishing agent storage jar (11) is provided with the fire extinguishing agent, and immersible pump (12) set up the inside at the fire extinguishing agent, the top of immersible pump (12) is passed through wire (17) and is connected with motor drive module (7) electricity.

3. The intelligent fire extinguishing system for the engine compartment of the automobile according to claim 1, wherein: the single chip microcomputer unit (1) is an ATmega16 single chip microcomputer, a 16K flash memory and 32I/O ports are arranged in the single chip microcomputer, a single chip microcomputer PC0 and a single chip microcomputer PC1 are respectively a temperature signal monitored by a temperature sensor (4) and a fire source signal input port monitored by a fire source detection sensor (3), the PC0 reads temperature data, and a PA0-PA5 port controls an LCD display module (6) to display the temperature data.

4. The intelligent fire extinguishing system for the engine compartment of the automobile according to claim 1, wherein: the temperature sensor (4) adopts a DS18B20 digital temperature sensor, the temperature measuring range is-55 ℃ to +125 ℃, the precision is +/-0.5 ℃ at-10 ℃ to +85 ℃, and the inherent temperature measuring error is 1 ℃.

5. The intelligent fire extinguishing system for the engine compartment of the automobile according to claim 1, wherein: the power module (5) supplies power by utilizing a vehicle-mounted 12V storage battery power supply, the whole system performs voltage conversion on the basis of the 12V power supply, and the power supply voltages of the single chip microcomputer unit (1), the LCD display module (6), the temperature sensor (4) and the fire source detection sensor (3) are all 5V.

6. The intelligent fire extinguishing system for the engine compartment of the automobile according to claim 1, wherein: the alarm module (8) adopts a buzzer to alarm.

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