CN216649308U - Smoke sensing system - Google Patents

Abstract

The utility model relates to a smoke sensing system, which comprises a conversion device, a detection assembly and a battery, wherein the conversion device is used for converting smoke into smoke; the detection assembly is used for detecting the concentration of smoke particles in the environment and comprises a main board which can be electrically connected to an external power supply through a conversion device; the battery is electrically connected with the conversion device and the mainboard respectively, and the battery can be electrically connected to an external power supply through the conversion device and can supply power to the mainboard when the external power supply is powered off. In the smoke sensing system, the main board is electrically connected to an external power supply through the conversion device, when the external power supply is powered off, the battery can also supply power to the main board, so that the detection assembly can monitor smoke, and the smoke sensing system always works normally; and the battery is also electrically connected to the external power supply through the conversion device, so that the battery can be charged when the external power supply is electrified, the situation that the detection assembly cannot work normally due to insufficient electric quantity after the battery is used for a long time is prevented, and the safety and the reliability are realized.

Description

Smoke sensing system

Technical Field

The utility model relates to the technical field of smoke detection, in particular to a smoke detection system.

Background

The smoke sensation is a device for preventing fire by monitoring the concentration of smoke. The traditional smoke sensing system generally realizes real-time smoke monitoring through external power supply, but after the external power supply is powered off, the smoke sensing system loses the detection function, so that the smoke sensing system fails.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a smoke sensing system that can work normally even when the external power source is turned off.

The utility model provides a smoke sensing system, which comprises a conversion device; the detection assembly is used for detecting the smoke particle concentration in the environment and comprises a main board which can be electrically connected to an external power supply through the conversion device; and the battery is electrically connected with the conversion device and the mainboard respectively, can be electrically connected to an external power supply through the conversion device, and can supply power to the mainboard when the external power supply is powered off.

In the smoke sensing system, the main board is electrically connected to an external power supply through the conversion device, and when the external power supply is powered off, the battery can still supply power to the main board, so that the detection assembly can monitor smoke in real time, and the smoke sensing system always works normally; and, the battery also is connected to external power source through conversion equipment electricity for external power source can charge to the battery when circular telegram, prevents that the battery from leading to the unable normal work of detection component because the electric quantity is not enough after long-time the use, and the guarantee smoke detector device safe and reliable.

In one embodiment, the conversion device is a POE converter, the detection assembly further includes a wireless module electrically connected to the main board, and the main board can perform wired transmission on a signal through the POE conversion device, or perform wireless transmission on a signal through the wireless module.

So set up, can guarantee when one of them signal transmission mode breaks down, another kind of mode still can carry out normal transmission to the signal, ensures this smoke and feels system safe and reliable.

In one embodiment, the smoke sensing system further comprises a housing, the detection assembly is disposed within the housing, and the housing comprises a bottom wall and a side wall; the side wall is provided with a flue for guiding smoke into the shell.

By the arrangement, the shell can protect the internal structure of the cigarette and can ensure the regular appearance of the cigarette sensing system; the flue is arranged on the side wall, so that the speed of introducing smoke into the shell can be increased.

In one embodiment, the number of the flues is multiple, and the flues are uniformly arranged along the circumferential direction of the side wall.

So set up, further accelerate to introduce the speed in the casing with smog, make the cigarette feel the system and can detect out smog concentration faster and send out the police dispatch newspaper, improve the work efficiency that the system was felt to the cigarette.

In one embodiment, the smoke sensing system further comprises a camera disposed on the bottom wall, and at least a portion of the camera is exposed from the housing.

So set up, the camera sets up in the diapire, prevents that the casing from blockking the partial visual angle of camera, and the rescue personnel of being convenient for in time judge indoor particular case and carry out the rescue under emergency.

In one embodiment, the camera is a wide-angle lens, and an optical axis of the wide-angle lens is vertically downward.

According to the arrangement, the shooting range of the camera can be enlarged, the shooting dead angle is reduced, and the efficiency of judging indoor specific conditions by rescue workers is improved.

In one embodiment, the detection assembly further includes a temperature and humidity sensor electrically connected to the main board, and the camera and the temperature and humidity sensor are arranged in layers in the optical axis direction of the camera.

So set up, temperature and humidity sensor sets up in the one side that the smoke chamber is close to the roof, and smog can pass through temperature and humidity sensor when casing inside rising to can improve the degree of accuracy that temperature and humidity sensor detected.

In one embodiment, the detection assembly further comprises a smoke chamber for collecting smoke, and the camera and the smoke chamber are arranged in layers in the optical axis direction of the camera.

So set up, because flue and smoke chamber correspond the setting for just can directly get into in the smoke chamber behind the flue gets into the casing, improve the work efficiency that the system was felt to the cigarette.

In one embodiment, the detection assembly further comprises an emitting tube and a receiving tube, wherein the emitting tube and the receiving tube are arranged in the smoke chamber, the emitting tube is used for emitting light towards smoke, and the receiving tube is used for receiving the light emitted by the emitting tube.

So set up, the light that the launching tube was launched is reflected the receiver tube when smog got into the smoke chamber to arouse the change of photocurrent, the mainboard detects the change back smoke of electric current and feels the device and send out the police dispatch newspaper.

In one embodiment, the number of the transmitting tubes is multiple, and the number of the receiving tubes is one; at least two of the emission tubes emit light of different colors.

According to the arrangement, the multiple transmitting tubes and one receiving tube are matched for collection and are combined with the false alarm prevention algorithm, so that the false judgment can be reduced; and, the accuracy of smoke detection can be further improved by the at least two different colors of light.

Drawings

FIG. 1 is a schematic perspective view of a smoke sensing system according to an embodiment of the present invention;

FIG. 2 is a partial exploded view of FIG. 1 according to the present invention;

FIG. 3 is a partial exploded view II of FIG. 1 provided in accordance with the present invention;

FIG. 4 is a partial exploded view III of FIG. 1 provided in accordance with the present invention;

fig. 5 is a schematic perspective view of a motherboard according to the present invention;

FIG. 6 is a block diagram of the internal components of the smoke sensing system provided by the present invention;

FIG. 7 is a block diagram of a power management system for a smoke detection system according to the present invention.

Description of the main elements

1. A detection component; 11. a main board; 12. a wireless module; 13. a smoking chamber; 14. a temperature and humidity sensor; 2. a battery; 3. a housing; 31. a flue; 32. a bottom wall; 321. a sound outlet hole; 33. a side wall; 34. a top wall; 4. a camera; 5. a cable; 51. an audio input cable; 52. an output cable; 53. a POE cable; 6. a buzzer; 7. an infrared lamp panel.

The present invention is described in further detail with reference to the drawings and the detailed description.

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.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The traditional smoke sensing system generally realizes real-time smoke monitoring through external power supply, but after the external power supply is powered off, the smoke sensing system loses the detection function, so that the smoke sensing system fails. Also there is some cigarette to feel the system and passes through battery powered, but when battery power low, need take off the battery and charge or change the battery, because the cigarette is felt and is installed in eminence positions such as roof usually, need climb when the user changes the battery, and the change process is comparatively complicated, and has certain danger.

In order to solve the above problems, as shown in fig. 1 to 5, the present invention provides a smoke sensing system, which can continue to work normally even after the external power source is powered off, and is safe and reliable because the user does not need to climb up to replace the battery.

As shown in fig. 1 to 2, specifically, the smoke sensing system includes a conversion device, a detection assembly 1 and a battery 2; the detection assembly 1 is used for detecting the concentration of smoke particles in the environment, the detection assembly 1 comprises a main board 11, and the main board 11 can be electrically connected to an external power supply through a conversion device; the battery 2 is electrically connected with the conversion device and the mainboard 11 respectively, and the battery 2 can be electrically connected to an external power supply through the conversion device and can supply power to the mainboard 11 when the external power supply is powered off.

As described above, in the related art, the smoke sensing system generally monitors smoke in real time by supplying power from an external power source, but when the external power source is powered off, the smoke sensing system loses a detection function, and the smoke sensing system fails. In the smoke sensing system provided by the embodiment of the utility model, the mainboard 11 is electrically connected to an external power supply through the conversion device, when the external power supply is powered off, the battery 2 can still supply power to the mainboard 11, so that the detection assembly 1 can monitor smoke in real time, and the smoke sensing system always keeps normal operation, and is safe and reliable.

Consider when the battery power is low, need take off the battery and charge or change the battery, and general cigarette is felt and is installed in eminence positions such as roof, and the user need climb when changing the battery, and the change process is comparatively complicated, and has certain danger. Therefore, in the smoke sensing system provided by the embodiment of the utility model, the battery 2 is electrically connected to the external power supply through the conversion device, so that the battery 2 can be charged when the external power supply is powered on, the situation that the detection assembly 1 cannot work normally due to insufficient electric quantity of the battery 2 after long-time use is prevented, a user does not need to climb high to charge the battery 2 or replace the battery 2 when the battery 2 is not charged, and the safety of the user is guaranteed.

As shown in fig. 5, in one embodiment, the switching device is a POE switch. The POE converter is a conversion device capable of providing direct current for equipment and transmitting data signals. In this embodiment, the detection assembly 1 may further include a wireless module 12 electrically connected to the main board 11, where the main board 11 is capable of performing wired transmission on the signal through the POE conversion device, or performing wireless transmission on the signal through the wireless module 12.

In the related art, when the external power source is powered off, the smoke sensing system generally transmits signals only through one of wired or wireless methods. In the smoke sensing system provided by the embodiment of the utility model, the main board 11 can perform wired transmission on the signal through the POE converter, and can also perform wireless transmission on the signal through the wireless module 12, so that when one signal transmission mode fails, the other signal transmission mode can still perform normal transmission on the signal, and the smoke sensing system is safer and more reliable.

In other embodiments, the main board 11 may be directly connected to an external power source through a power line, and transmit signals through a network cable, and the battery 2 is directly connected to the external power source through the power line. Of course, in other embodiments, the converter device may be another type of converter, as long as it is ensured that the converter can both transmit data signals and supply dc power to the device.

The battery 2 may be one or more of lithium batteries, storage batteries and other types of batteries, as long as the smoke sensing system can be ensured to be powered by the battery 2 when the external power supply is powered off, and no specific limitation is made herein; the wireless module 12 may be one or more of a 4G module, a 5G module, or a WIFI module, as long as it can be ensured that the smoke sensing system can normally transmit signals through the wireless module 12.

As shown in fig. 1 to 4, the smoke sensing system further comprises a casing 3, the detection assembly 1 is arranged in the casing 3, the casing 3 can protect the internal structure thereof, and the smoke sensing system can be guaranteed to have a regular appearance. Casing 3 includes diapire 32, lateral wall 33 and roof 34, and roof 34 is used for feeling the system integral erection to positions such as roof with the cigarette, and diapire 32 is towards ground, and lateral wall 33 is equipped with the flue 31 that is used for drainage smog to get into in the casing 3, because the temperature of smog is higher to steam can rise, therefore smog can generally fill at the roof at first, and like this, the flue 31 sets up the rate that can accelerate smog introduction casing 3 in lateral wall 33.

In the illustrated embodiment, the number of flues 31 is plural, and the plurality of flues 31 are uniformly arranged along the circumferential direction of the side wall 33. Because the number of the flues 31 is large and the flues 31 are arranged towards each direction, the speed of introducing the smoke into the shell 3 can be further accelerated, the smoke sensing system can detect the smoke concentration more quickly and send out an alarm, and the working efficiency of the smoke sensing system is improved. Of course, in other embodiments, there may be only one flue 31 opening in the side wall 33 or the bottom wall 32, or there may be a plurality of flues 31 spaced apart from the side wall 33 or the bottom wall 32, as long as it is ensured that smoke can be guided into the housing 3.

As shown in fig. 2, the smoke sensing system further includes a camera 4 disposed on the bottom wall 32, and at least a portion of the camera 4 is exposed from the housing 3. Camera 4 sets up in diapire 32, can prevent that casing 3 from blockking the partial visual angle of camera 4, and the rescue personnel of being convenient for in time judge indoor particular case and rescue under emergency. The detection assembly 1 further comprises a temperature and humidity sensor 14 electrically connected to the main board 11 and a smoke chamber 13 for collecting smoke.

On camera 4's optical axis direction, camera 4, smoke chamber 13 and temperature and humidity sensor 14 can the layering arrange, wherein: the flue 31 is arranged corresponding to the smoke chamber 13 and is at the same height. Because the camera 4, the smoke chamber 13 and the temperature and humidity sensor 14 are arranged in a layered manner, the structure inside the shell 3 can be ensured to be regular, elements and circuits for connecting the elements cannot interfere with each other, the elements can be ensured to be normally used, and the production and assembly of the smoke sensing system are facilitated; moreover, the flue 31 and the smoke chamber 13 are correspondingly arranged, so that smoke can directly enter the smoke chamber 13 after entering the shell 3 through the flue 31, the working efficiency of the smoke sensing system is improved, the temperature and humidity sensor 14 is arranged on one side of the smoke chamber 13 close to the top wall 34, when the smoke rises inside the shell 3, the smoke can pass through the temperature and humidity sensor 14, and the detection accuracy of the temperature and humidity sensor 14 can be improved.

The camera 4 can be selected to be a wide-angle lens, and the optical axis of the wide-angle lens is vertical downward, so that the shooting range of the camera 4 can be enlarged, the shooting dead angle is reduced, and the efficiency of judging indoor specific conditions by rescue workers is improved.

As shown in fig. 3, the detecting assembly 1 further comprises a transmitting tube and a receiving tube arranged in the smoke chamber 13, the transmitting tube is used for transmitting light towards smoke, and the receiving tube is used for receiving the light transmitted by the transmitting tube. When smoke enters the smoke chamber 13, light emitted by the emitting tube towards the smoke is reflected to the receiving tube, so that the change of light current is caused, and the smoke sensing device gives an alarm after the main board 11 detects the change of the current. In one embodiment, the number of the emission tubes is plural, the number of the receiving tubes is one, and at least two emission tubes emit light of different colors. The multiple transmitting tubes and one receiving tube are matched for collection and are combined with an anti-false alarm algorithm, so that the false judgment can be reduced. Preferably, the quantity of emission tube is two to infrared light and blue light are emitted respectively, and the accuracy to smoke detection can further be improved to two kinds of different colours light, reduces the erroneous judgement. Of course, in other embodiments, there may be two emission tubes emitting the same color of light, or one emission tube.

As shown in fig. 1, the smoke sensing system further includes a plurality of cables 5, which are an audio input cable 51, an audio output cable 52, and a POE cable 53, and the main board 11 is electrically connected to the POE converter through the POE cable.

As shown in fig. 3 and 6, the smoke sensing system further includes a buzzer 6, an infrared lamp panel 7, an SD card, an SIM card, a CMOS sensor, and the like, the buzzer 6 is disposed on the bottom wall 32, and a plurality of sound emitting holes 321 corresponding to the buzzer 6 are disposed on the bottom wall 32; the infrared lamp panel 7 can supplement light to the external environment at night or in dark light; when smog concentration or ambient temperature reach a definite value, mainboard 11 can trigger bee calling organ and report to the police, the outside image projection that camera 4 will shoot simultaneously is the CMOS sensor, the CMOS sensor converts light signal into electrical signal input mainboard 11 and encodes, and can transmit control center through POE converter, perhaps pass to platform or end user through wireless methods such as 4G or WIFI, the picture/video of shooing is preserved and is used for the data of transferring afterwards to SD card local.

As shown in fig. 7, the smoke sensing system further includes a power management system, wherein the input end of the POE converter is an RJ45 socket, wherein pins 1, 2, 3 and 6 simultaneously transmit data signals and 48V power, and the POE converter decomposes a DC12V power supply and a hundred mega network signal, wherein DC12V is used as the power supply of the motherboard 11, and the power supply of the subsequent circuit is switched through the power management system module. Power management system contains the power management chip, this chip can charge for battery 2, and output SYS system voltage and export VCC voltage through the BUCK circuit and give the mainboard 11 power supply, mainboard 11 includes smoke sensing board and video board, when detecting component 1 detects smog and reports to the police under the main circumstances of POE converter or DC12V, the EN that passes through smoke sensing board control BOOST circuit this moment enables the pin, make SYS voltage through BOOST circuit after stepping up, export +12V through the power switching circuit and give the video board power supply, the default does not enable the EN signal for saving battery power under the non-alarm state, BOOST circuit does not have voltage output.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A smoke sensing system, comprising:

a conversion device;

a detection assembly (1) for detecting the concentration of smoke particles in the environment, the detection assembly (1) comprising a main board (11), the main board (11) being electrically connectable to an external power source via the conversion means;

and the battery (2) is electrically connected with the conversion device and the mainboard (11) respectively, and the battery (2) can be electrically connected to an external power supply through the conversion device and can supply power to the mainboard (11) when the external power supply is powered off.

2. The smoke sensing system according to claim 1, wherein said conversion device is a POE converter, said detection assembly (1) further comprises a wireless module (12) electrically connected to said main board (11), said main board (11) can transmit signal by wire through said POE conversion device, or transmit signal wirelessly through said wireless module (12).

3. A smoke sensing system according to claim 1 or 2, further comprising a housing (3), said detection assembly (1) being arranged within said housing (3), said housing (3) comprising a bottom wall (32) and a side wall (33);

the side wall (33) is provided with a flue (31) for guiding smoke into the housing (3).

4. A smoke sensing system according to claim 3, wherein said number of flues (31) is plural, a plurality of flues (31) being evenly arranged along the circumference of said side wall (33).

5. A smoke sensing system according to claim 3, further comprising a camera (4) arranged at said bottom wall (32), at least part of said camera (4) being exposed out of said housing (3).

6. The smoke sensing system according to claim 5, wherein said camera (4) is a wide angle lens with its optical axis vertically downward.

7. The smoke sensing system according to claim 5, wherein said detecting component (1) further comprises a temperature and humidity sensor (14) electrically connected to said main board (11), and said camera (4) and said temperature and humidity sensor (14) are arranged in layers in the optical axis direction of said camera (4).

8. A smoke sensing system according to claim 5, wherein said detection assembly (1) further comprises a smoke chamber (13) for collecting smoke, said camera (4) and said smoke chamber (13) being arranged in layers in the direction of the optical axis of said camera (4).

9. The smoke sensing system according to claim 8, wherein said detection assembly (1) further comprises a transmitting tube and a receiving tube arranged in said smoking chamber (13), said transmitting tube being adapted to emit light towards the smoke, said receiving tube being adapted to receive light emitted by said transmitting tube.

10. The smoke sensing system of claim 9, wherein said transmitting tube is plural in number and said receiving tube is one in number; at least two of the emission tubes emit light of different colors.

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