CN211479249U

CN211479249U - Smoke detection alarm

Info

Publication number: CN211479249U
Application number: CN202020065929.3U
Authority: CN
Inventors: 李顺江
Original assignee: Kunming Inpil Science & Technology Co ltd
Current assignee: Kunming Inpil Science & Technology Co ltd
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-09-11
Anticipated expiration: 2030-01-11

Abstract

The utility model relates to the technical field of alarms, in particular to a smoke detection alarm; the smoke detection module detects an original signal and sends the original signal to the amplification circuit, the amplification circuit transmits the processed signal to the single chip, the single chip processes the data and transmits the data to a PC (personal computer) end through the communication module for display, a timer, a self-checking circuit and a memory are arranged in the single chip, the single chip is also connected with a low-voltage detection circuit, and the alarm module is connected with an LED (light emitting diode) module and a buzzer; the utility model discloses smoke detection alarm is small, the quality is light, can the accurate detection smog.

Description

Smoke detection alarm

Technical Field

The utility model relates to an alarm technical field, concretely relates to smoke detection alarm.

Background

The smoke detection alarm is mainly used for detecting smoke ions generated in the initial stage of a fire, and when the smoke concentration reaches an alarm value, an audible and visual alarm signal is sent out; and transmitting alarm data to the monitoring host.

The current traditional smoke detection alarm has the following problems:

1. the traditional smoke detection alarm collects smoke data through a temperature-sensing smoke-sensing probe, and a built-in microprocessor stores and judges the collected data; the smoke detection mode has lower sensitivity and is easy to misreport; the state of the smoke detection alarm can be monitored only through the host computer of the central control room, and the installation position of the smoke detection alarm can be determined only through the host computer of the central control room when an accident occurs, so that the limitation is large.

2. In the existing smoke detection alarm system, the smoke detection alarm has large volume and occupies space; and the smoke detection alarm is mostly in wired transmission and secondary installation, and has large difficulty, long time consumption and high cost. If install smoke detection alarm in the great places of potential safety hazard such as ancient building, historical relic's museum, tourist attraction, old-fashioned resident building, chemical plant, traditional smoke detection alarm is not only consuming time, easily destroys the overall structure of building moreover.

3. The traditional smoke detection alarm in the market at present adopts a two-bus communication mode, communication wires need to be distributed, the wiring cost is high, the maintenance difficulty is high after the circuit is damaged, and once the circuit damaged alarm information in a fire area is lost, the greater loss can be caused by missing the optimal fire fighting opportunity; meanwhile, the line resistance of the two buses limits the communication distance, so that the traditional smoke detection alarm is short in communication distance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve prior art problem with the purpose, provide a smog detection alarm that small, quality are light, can accurate control smog.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

smog detection alarm, including smoke detection module, amplifier circuit, singlechip and communication module and the alarm module who connects gradually, smoke detection module detects original signal and sends for amplifier circuit, and amplifier circuit gives the singlechip with the signal transfer after handling, and the singlechip is handled these data and is conveyed to PC end through communication module and shows, be equipped with timer, self-checking circuit and memory in the singlechip, the singlechip still with be connected with low pressure detection circuitry, alarm module is connected with LED module and cutting edge of a knife or a sword calling organ.

Further, the smoke detection module comprises an optical signal emitting device and an optical signal receiving device.

Further, the optical signal emitting device is an infrared light emitting tube.

Further, the optical signal receiving device is a photodiode.

Further, the amplifying circuit comprises an operational amplifier with the model number of SGM2358YS 1747C.

Further, the communication module is an NB-IoT wireless communication module.

Furthermore, the communication module is also connected with a cloud server, and the communication module transmits the terminal data to the PC end and the cloud server.

Furthermore, the smoke detection module, the single chip microcomputer and the alarm module are powered by lithium batteries.

Further, the single chip microcomputer adopts an ARM microcontroller with the model of STM32L011F4P6TR 32 bits.

The utility model has the beneficial technical effects that:

1. the utility model adopts the scattered light principle and is powered by a battery. Accurate smog control and through the intelligent analysis to flue maze signal, reduced the false positive rate, guaranteed excellent security performance.

2. The utility model discloses smoke detection alarm simple structure, it is small, the quality is light, easy to assemble and dismantlement.

3. The utility model discloses smoke detection alarm adopts NB wireless communication technique, combines together NB communication module and control module (singlechip) and constitutes communication module, compares in traditional smoke detection alarm, the utility model discloses realize that data communication from wired to wireless strideing across, the wiring degree of difficulty is big, maintain difficult problem when having solved the installation, has reduced the construction cost of totality.

4. The utility model discloses the electromagnetic compatibility technique has been added to smoke detection alarm in hardware circuit's composing and overall arrangement, and the stability of guarantee communication module transmission has reduced the influence of external environment factor to the terminal, has ensured wireless communication's reliability.

5. The utility model discloses smoke detection alarm adopts wireless transmission to transmit alarm information to PC end and cloud ware to realize on-line monitoring smoke detection alarm, possess full electronic type automated inspection function, manual amortization and wireless networking alarming function.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a block diagram of the smoke detection alarm of the present invention.

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.

As shown with reference to figure 1 of the drawings,

the utility model provides a smoke detection alarm, including smoke detection module 3, amplifier circuit 1, singlechip 2 and communication module 7 and the alarm module 6 that connects gradually, smoke detection module 3 detects original signal transmission and gives amplifier circuit 1, and amplifier circuit 1 will handle the signal transfer after and give singlechip 2, and singlechip 2 handles these data and passes 7 through communication module and deliver to PC end demonstration, be equipped with timer 21, self-checking circuit 22 and memory 23 in the singlechip 2, singlechip 2 still with be connected with low pressure detection circuitry 8, alarm module 8 is connected with LED module 5 and cutting edge of a knife or a sword calling organ 11.

The smoke detection alarm of the utility model adopts STM32L011F4P6TR 32 bit ARM microcontroller, when the 32 bit RISC kernel works at the frequency of 32MHz, high speed embedded memory and wide enhanced I/O and peripheral; high power efficiency performance can be provided for various devices that achieve internal voltage adaptation and low power modes through a large number of internal and external clock sources. The large-capacity memory of the STM32L011F4P6TR microprocessor enables the smoke detection alarm to store a large amount of data, and the enhanced I/O and peripheral equipment ensure high-speed digital-to-analog conversion, thereby laying a foundation for the single chip microcomputer to process and analyze data; the low power consumption mode reduces the power consumption of the equipment during operation, and further prolongs the service life of the equipment.

As a specific embodiment of the present invention, the smoke detection module 3 includes an optical signal emitting device 31 and an optical signal receiving device 32. The optical signal emitting device is an infrared light emitting tube, and the optical signal receiving device is a photodiode. The amplifying circuit comprises an operational amplifier with the model number SGM2358YS 1747C. The communication module is an NB-IoT wireless communication module. The communication module is further connected with a cloud server, and the communication module transmits terminal data to the PC end 9 and the cloud server 10. The smoke detection module, the single chip microcomputer and the alarm module are powered by lithium batteries.

The utility model discloses smoke detection alarm theory of operation: the smoke detection module periodically emits infrared rays by an optical signal emitting device (an infrared light emitting tube), and a receiving end judges whether smoke exists or not by detecting the intensity of the infrared rays scattered by smoke particles in a photoelectric cabin (an infrared photoelectric cabin matched with a photoelectric smoke detector circuit is arranged in a smoke detection alarm) by a photodiode. When smoke is detected, the photodiode transmits a small signal to the amplifying circuit, the signal passing through the amplifying circuit is transmitted to the single chip microcomputer, the single chip microcomputer receives the signal and then sends a pulse alarm signal to the alarm module, the buzzer sends out an alarm sound at the moment, the light emitting diode in the LED module circuit flickers, and meanwhile the single chip microcomputer transmits the alarm information to the PC end and the cloud server through the communication module to be displayed. A self-checking circuit is arranged in the singlechip, and whether the detector can work normally can be detected by pressing a self-checking/silencing key in the smoke detection alarm; the single chip microcomputer is also connected with a low-voltage detection circuit, the battery voltage is automatically detected once every day, and when the battery voltage is lower than the lowest working voltage of the single chip microcomputer, a low-voltage alarm signal is sent out, and low-voltage alarm information is uploaded.

The utility model discloses smog detection alarm utilizes the absorption and the scattering effect that the smog granule that the conflagration initial stage produced is to light to judge whether there is smog. There are two different processes when smoke particles interact with light: on the one hand, the particles can re-radiate the received energy at the same wavelength, re-radiation can occur in all directions, but the radiation intensity in different directions is different, called scattering; alternatively, the radiant energy may be converted to other forms of energy, such as thermal energy, chemical energy, or secondary radiation of different wavelengths, referred to as absorption.

The smoke detection module mainly comprises an optical signal emitting device and an optical signal receiving device. In order to reduce the interference of dust on the devices in the normal environment, two devices in the smoke detection module are respectively arranged in two photoelectric cabins in the inside of a labyrinth, and a filter screen with moderate density is added outside the labyrinth. The optical signal transmitting device and the optical signal receiving device adopt a bias design, and the design mode not only improves the reliability of smoke detection, but also reduces the false alarm rate of the smoke detection alarm.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

Claims

1. The smoke detection alarm is characterized by comprising a smoke detection module, an amplifying circuit, a single chip microcomputer, a communication module and an alarm module which are sequentially connected, wherein the smoke detection module detects that an original signal is sent to the amplifying circuit, the amplifying circuit sends the processed signal to the single chip microcomputer, the single chip microcomputer processes the data and sends the data to a PC (personal computer) end through the communication module to be displayed, a timer, a self-checking circuit and a memory are arranged in the single chip microcomputer, the single chip microcomputer is further connected with a low-voltage detection circuit, and the alarm module is connected with an LED (light emitting diode) module and a buzzer.

2. The smoke detection alarm of claim 1, wherein the smoke detection module comprises an optical signal emitting device and an optical signal receiving device.

3. A smoke detection alarm according to claim 2 wherein the light signal emitting device is an infrared light emitting tube.

4. A smoke detection alarm according to claim 2 wherein the light signal receiving device is a photodiode.

5. The smoke detection alarm of claim 1, wherein the amplification circuit comprises an operational amplifier of type SGM 2040.

6. The smoke detection alarm of claim 1, wherein the communication module is an NB-IoT wireless communication module.

7. The smoke detection alarm according to claim 6, wherein the communication module is further connected with a cloud server, and the communication module transmits the terminal data to the PC terminal and the cloud server.

8. The smoke detection alarm of claim 1, wherein the smoke detection module, the single chip microcomputer and the alarm module are powered by lithium batteries.

9. The smoke detection alarm of claim 1, wherein the single chip microcomputer is an ARM microcontroller having a model number STM32L011F4P6TR 32 bit.