TWI804996B - Active fire extinguishing system and active fire extinguishing method - Google Patents

Abstract

An active fire extinguishing system and an active fire extinguishing method are provided. The active fire extinguishing system includes an external device and a control module. The external device includes an image camera unit, a driving mechanism, a temperature photography unit, and a fire extinguishing nozzle. The image camera unit has an image detection range, and the image detection range is defined a plurality of identification blocks. The image camera unit obtains a plurality of identification images in the image detection range. The control module detects that any one of identified blocks is as a smoking block. The control module can control the driving mechanism to drive the temperature photography unit toward the smoking block to obtain a first detected temperature. The control module can control the fire extinguishing nozzle to spray a fire extinguishing liquid to the smoking block when the first detection temperature exceeds a fire point temperature. Accordingly, the active fire extinguishing system can instantly and accurately extinguish the fire source to avoid fire.

Description

Active fire extinguishing system and active fire extinguishing method

The invention relates to a fire extinguishing system, in particular to an active fire extinguishing system and an active fire extinguishing method.

Most of the existing fire extinguishing systems are passive fire extinguishing. The aforementioned passive fire extinguishing refers to: using the high temperature or dense smoke generated by the fire to trigger the sprinkler device, so that the sprinkler device can extinguish the fire on a large scale.

However, the aforementioned passive fire extinguishing system has many disadvantages in actual use. For example, by the time a fire generates enough heat or smoke to trigger sprinklers, most fires have already spread, resulting in missed opportunities for firefighting (extinguishing). Secondly, during the fire extinguishing process, the sprinkler device activates multiple sprinkler nozzles arranged in the entire space (such as a factory building), so that the multiple sprinkler nozzles can spray the entire space on a large scale, but this will lead to placement The equipment in the unfired area was also sprayed by the water nozzle, which further caused the equipment to be damaged by water.

Therefore, the inventor believes that the above-mentioned defects can be improved, Naite devoted himself to research and combined with the application of scientific principles, and finally proposed an invention with reasonable design and effective improvement of the above-mentioned defects.

The technical problem to be solved by the present invention is to provide an active fire extinguishing system and an active fire extinguishing method aiming at the deficiencies of the prior art.

In order to solve the above technical problems, one of the technical solutions adopted by the present invention is to provide an active fire extinguishing system, which is suitable for installation in a space. The active fire extinguishing system includes: an external device, which is used to set In the above space, the external device includes: an image capture unit, which has an image detection range in the space, and the image detection range defines a plurality of identification blocks, and the image capture unit is located according to the time axis A plurality of identification images are obtained within the image detection range; a driving mechanism can swing to face any of the identification blocks; a temperature photography unit is arranged on the driving mechanism, and the temperature photography unit can be Driven by the driving mechanism to face any one of the identification blocks; and a fire extinguishing nozzle set on the driving mechanism, the fire extinguishing nozzle can be driven by the driving mechanism so that the fire extinguishing nozzle faces any The identification block sprays a fire extinguishing agent; and a control module, electrically coupled to the external device, the control module can detect any one of the identification blocks as a fire through a plurality of the identification images Smoke block; the control module can control the driving mechanism to drive the temperature camera unit towards the smoke block, thereby obtaining a first detection temperature; the control module is when the first detection temperature exceeds When an ignition temperature is reached, the driving mechanism can be controlled to drive the fire extinguishing nozzle, so that the fire extinguishing nozzle sprays the fire extinguishing agent toward the smoking block.

In order to solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide an active fire extinguishing method, including the following steps: (a) using an image detection range to divide a plurality of identification blocks; (b) according to time The axis captures multiple identification images within the image detection range; (c) judges whether any of the identification blocks has a smoke image by using the change value between the multiple identification images; if so, define The identified block with the smoke image is a smoke block, and step (d) is executed; if not, step (b) is executed; (d) obtaining a first detection of the smoke block temperature; (e) judging whether the first detected temperature is greater than an ignition point temperature; if yes, execute step (f); if not, execute step (b); (f) drive a fire extinguishing nozzle to the smoke block Spray a fire extinguishing agent for a judgment time; (g) obtain a second detection temperature of the smoke block; (h) judge whether the second detection temperature is greater than the ignition temperature; if so, perform step (i) ; If not, execute step (b); (i) drive the fire extinguishing nozzle to spray the fire extinguishing agent toward the eight identification blocks adjacent to the smoking block.

To sum up, the active fire extinguishing system and active fire extinguishing method disclosed in the embodiments of the present invention can use "the control module to detect the smoke-generating block and its temperature" and "the control module can control The driving mechanism drives the fire extinguishing nozzle, so that the fire extinguishing nozzle sprays the fire extinguishing agent towards the high-temperature smoking block, so that the fire point that has already smoked and produced flame can be instantly and quickly Accurately extinguished, so as to effectively avoid the fire.

In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.

The following are specific examples to illustrate the implementation of the "active fire extinguishing system and active fire extinguishing method" disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only for simple illustration, and are not drawn according to the actual size, which is stated in advance. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", and "third" may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another element, or one signal from another signal. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.

[first embodiment]

Referring to FIG. 1 to FIG. 5 , this embodiment provides an active fire extinguishing system 100 . As shown in FIG. 1, the active fire extinguishing system 100 is suitable for installation in a space PL (for example: a factory building), and the active fire extinguishing system 100 includes an external device 1 and a device electrically coupled to the external device 1 A control module 2, the active fire extinguishing system 100 can control the external equipment through the control module 2, so that the external equipment 1 detects a fire source (that is, the fire point), and accurately Spray a fire extinguishing agent on the fire source to extinguish it, so as to avoid the fire.

In other words, any fire extinguishing system that does not directly extinguish the fire source (for example: a pipeline fire extinguishing system that sprinkles water in a large area) is not the active fire extinguishing system 100 referred to in the present invention. Next, the components of the active fire extinguishing system 100 and their connections will be introduced below.

As shown in FIG. 1 and FIG. 2 , the external device 1 is ideally installed in the space PL, especially on a ceiling CE of the space PL, but the present invention is not limited thereto. The external device 1 includes an image capturing unit 11 , a driving mechanism 12 , a temperature capturing unit 13 and a fire extinguishing nozzle 14 .

Referring to FIG. 1 , FIG. 2 , and FIG. 4 , the image capturing unit 11 in this embodiment is a CCD camera, but the present invention is not limited thereto. The image capturing unit 11 is disposed on the ceiling CE and faces any direction of the space PL, so that the image capturing unit 11 has an image detection range VR in the space PL. The image detection range VR is defined by a plurality of identification blocks (as shown in FIG. 4 ), and the position of each identification block can correspond to an area of the space PL. The image capturing unit 11 can obtain a plurality of identification images within the image detection range VR according to the time axis, that is, each time point has one identification image. A plurality of the identification images can be acquired (or read) by the control module 2 .

In this embodiment, the driving mechanism 12 is arranged on the ceiling CE, and is located at a position that does not affect the image capturing unit 11 to obtain the identification image. The driving mechanism 12 includes a stepping motor (not shown in the figure) and a mounting frame (not shown in the figure) in this embodiment, the stepping motor is electrically coupled to the control module 2, and the The stepping motor can be controlled (or driven) by the control module 2 . The installation frame can be driven by the stepping motor to pivot toward the image detection range VR. That is to say, the driving mechanism 12 can be controlled by the control module 2 to swing, so as to face any one of the identification blocks. Of course, the above-mentioned stepping motor can also be reasonably adjusted to other driving components (for example: servo motor) according to the situation.

The temperature photographing unit 13 is an infrared camera (IR Camera) in this embodiment, but the present invention is not limited thereto. The temperature photographing unit 13 is arranged on the driving mechanism 12, and the temperature photographing unit 13 can be driven by the driving mechanism 12 towards any one of the identification blocks, so that the temperature photographing unit 13 can obtain any The temperature in one of the identification blocks can be obtained (or read) by the control module 2 .

The fire extinguishing nozzle 14 is arranged on the driving mechanism 12, and the fire extinguishing nozzle 14 can be used to connect a fire extinguishing agent. In practice, the fire extinguishing nozzle 14 can be the fire extinguishing agent connected as liquid water through a pipeline (for example: water pipe), or the fire extinguishing agent connected as fire extinguishing dry powder through a compression bottle, which means that the Extinguishing agent here refers to any liquid or powder capable of extinguishing a fire source.

In addition, the fire extinguishing nozzle 14 is electrically coupled to the control module 2 and can be controlled by the control module 2, so that the fire extinguishing nozzle 14 can spray the fire extinguishing agent towards a target area. That is to say, the fire extinguishing nozzle 14 includes an electronically controlled valve (not shown in the figure) controlled by the control module 2 in this embodiment.

Referring again to FIG. 3 , the control module 2 is electrically coupled to the video camera unit 11 , the driving mechanism 12 , the temperature camera unit 13 and the fire extinguishing nozzle 14 in this embodiment, and The control module 2 can integrate the video camera unit 11, the driving mechanism 12, the temperature camera unit 13 and the fire extinguishing nozzle 14, so as to detect the fire source, extinguish the fire source, etc. effect.

Specifically, the control module 2 can obtain two identification images at different time points, and judge whether any of the identification blocks has a smoke image through the change between the two identification images. . In other words, the control module 2 can detect any one of the identified blocks as a smoking block through a plurality of the identified images.

In this embodiment, the control module 2 uses one of the identified images as a comparison to compare the identified image at the current time point, so as to use the gray scale change value between the two to determine whether the occurrence of the occurrence occurs. smoke images.

In detail, as shown in FIG. 4 and FIG. 5 , the control module 2 pre-acquires one of the identification images when there is no smoke through the image capturing unit 11 as a control group (hereinafter referred to as a control image OR). , and the control module 2 calculates the average gray scale value corresponding to each of the identified blocks in the comparison image OR. Then, the control module 2 compares the comparison image OR with the identification image RI at the current time point, and confirms that the comparison image OR in the same area (ie, the same identification block) corresponds Whether the difference (or amount of change) between the average grayscale value in and the average grayscale value in the identified image RI at the current time point is greater than a judgment value.

For example, FIG. 4 shows the comparison image OR, and FIG. 5 shows the identification image RI at the current time point. The image detection ranges in the comparison images in FIG. 4 and FIG. 5 are coordinateized, defined as 1-9 from left to right, and defined as A-D from top to bottom. That is to say, the image detection ranges in FIG. 4 and FIG. 5 are coordinateized to form a plurality of 9 by 4 frame areas, and each frame area represents the identification block.

Assuming that the equipment in the C6 box area is in a smoke state, the control module 2 will find that the average grayscale value of the identification image RI at the current time point in the C6 box area is compared with the control image at The average gray scale value within the C6 box area undergoes a sudden change (for example: sudden increase or sudden decrease), and exceeds the determination value. The control module 2 will determine that there is the smoke image SD in (the identification block RI of) the C6 box area, and further define it as a smoke block TA.

Of course, the method for the control module 2 to determine whether any one of the identification blocks has the smoke image SD is not limited to the above. For example, the control module 2 can also identify whether there is the smoke image SD through the variation of RGB values or convolutional neural network.

As shown in FIG. 5, after the control module 2 detects that any one of the identification blocks is the smoking block TA, the control module 2 can control the driving mechanism 12 to drive the temperature photography The unit 13 faces the smoking block TA, so as to obtain a first detected temperature. Next, the control module 2 can control the drive mechanism 12 to drive the fire extinguishing nozzle 14 when the first detected temperature exceeds an ignition point temperature, so that the fire extinguishing nozzle 14 moves toward the smoke block TA (That is, the C6 box area in Fig. 5) spray the fire extinguishing agent.

That is to say, the active fire extinguishing system 100 determines the location of the fire source by using two conditions such as smoke and high temperature, and further extinguishes the fire source. In other words, any fire extinguishing system that does not simultaneously utilize two conditions such as smoke and high temperature to determine the fire source is not the active fire extinguishing system 100 referred to in the present invention.

It is worth noting that, in order to avoid slight differences between the multiple identification blocks and the actual position of the space PL (for example: image distortion caused by a wide-angle lens), the fire extinguishing nozzle 14 is not effective (or not exactly) Extinguish the source of said ignition.

Therefore, in a preferred embodiment, when the fire extinguishing nozzle 14 sprays the fire extinguishing agent towards the smoking block TA for a determined time (for example: 5 minutes), the control module 2 passes the The temperature photographing unit 13 acquires a second detected temperature of the smoking block TA again. When the control module 2 determines that the second detected temperature is greater than the ignition temperature, the fire extinguishing nozzle 14 is driven by the driving mechanism 12, so that the fire extinguishing nozzle 14 can move toward the adjacent smoke-generating block. The eight identification blocks of the TA (that is, the B5-B7, C5, C7, D5-D7 box areas in FIG. 5 ) spray the fire extinguishing agent. Accordingly, the fire extinguishing nozzle 14 can center on the smoking block TA, and further expand the spraying range of the fire extinguishing agent.

In practice, the manner in which the fire extinguishing nozzle 14 sprays the fire extinguishing agent toward the eight identification blocks adjacent to the smoking block TA can be designed according to the actual situation. Two preferred embodiments are provided below, but the present invention is not limited thereto.

In one preferred embodiment, the fire extinguishing nozzle 14 can be driven by the driving mechanism 12 to spray the fire extinguishing agent one by one towards the eight identification blocks adjacent to the smoking block TA. For example, the smoke-generating block TA is the C6 box area, and the fire extinguishing nozzle 14 will be driven by the driving mechanism 12, and move towards the B5-B7, C5, C7, D5-D7 box in sequence The eight identified blocks in the area spray the fire extinguishing agent for a specific time in sequence.

In another preferred embodiment, the fire extinguishing nozzle 14 includes a spray head (not shown in the figure) capable of spraying the fire extinguishing agent and a spray angle adjustment member (not shown in the figure) arranged on the spray head, The spray angle adjusting member can adjust the spray angle of the fire extinguishing agent when it leaves the spray head, so that the fire extinguishing agent can cover the eight identification blocks adjacent to the smoking block. It can also be understood that the fire extinguishing agent sprayed by the nozzle is adjusted from a columnar shape to a cone shape through the spray angle adjustment member, so that the fire extinguishing agent can cover B5-B7, C5, C7, D5-D7 The eight identification blocks and the smoking block TA in the box area. It should be additionally noted that the adjustment of the spray angle of the fire extinguishing agent when it leaves the spray head by the spray angle adjusting member is a prior art, and is not the focus of the present invention, so it will not be described in detail here.

[Second embodiment]

As shown in Figure 6 to Figure 8, it is the second embodiment of the present invention, the active fire extinguishing system 100' of this embodiment is similar to the active fire extinguishing system 100 of the first embodiment above, the same points of the two embodiments It will not be described in detail, but the difference between the active fire extinguishing system 100' of this embodiment and the first embodiment mainly lies in:

As shown in FIG. 6 to FIG. 8, the active fire extinguishing system 100' of this embodiment further includes a lifting device 15 installed on the ceiling CE, and the lifting device 15 can be used for the installation of the external device 1. Accordingly, the lifting device 15 can drive the external device 1 to move, so that the user can clean (or maintain) the external device conveniently.

Specifically, the lifting device 15 in this embodiment includes a setting seat 151 for setting on the ceiling CE and a displacement mechanism 152 installed on the setting seat 151 . The displacement mechanism 152 can drive the external device 1 to move between a working position P1 (as shown in FIG. 6 ) and a maintenance position P2 (as shown in FIG. 8 ). Wherein, when the external device 1 is at the working position P1, the external device 1 is fixed on the installation seat 151, so that the external device 1 can detect, Extinguishing. When the external device 1 is at the maintenance position P2, the external device 1 is far away from the installation seat 151, so that the external device 1 is close to the ground and can be easily cleaned and maintained by the user.

As shown in Figure 7, in a preferred situation, the setting seat 151 includes a coupling groove 1511 and a first conductive member 1512 disposed in the coupling groove 1511, the notch of the coupling groove 1511 The first conductive member 1512 is disposed on the inner edge of the coupling groove 1511 away from the ceiling CE. In this embodiment, the first conductive element 1512 is a conductive tab exposed on the inner edge of the coupling groove 1511 , and the first conductive element 1512 is electrically coupled to the control module 2 .

In this embodiment, the displacement mechanism 152 includes a lifting unit 1521 , a mounting platform 1522 , a second conductive member 1523 , and a coupling protrusion 1524 . The lifting unit 1521 is a winch in this embodiment, but the present invention is not limited thereto. The lifting unit 1521 is installed on the installation base 151 , and one end of the lifting unit 1521 is installed with the installation platform 1522 . The lifting unit 1521 can drive the installation platform 1522 to move (along the up and down direction of the space PL). Of course, in practice, the lifting unit 1521 may also be other devices capable of lifting (for example, a rail-type lift), or be installed on the ceiling CE.

The external device 1 is arranged on the installation platform 1522, and the coupling protrusion 1524 is formed on the side of the installation platform 1522 facing the coupling groove 1511, and the coupling protrusion 1524 can geometrically Cooperate with the coupling groove 1511 . In this embodiment, the second conductive member 1523 is a conductive tab electrically coupled to the external device 1 , and is disposed on the outer edge of the coupling bump 1524 .

Wherein, when the external device 1 is at the working position P1, the coupling protrusion 1524 is accommodated in the coupling groove 1511, and the external device 1 is electrically connected through the second conductive member 1523. The first conductive member 1512 is electrically coupled to the external device 1 and the control module 2 is electrically coupled. On the contrary, when the external device 1 is in the maintenance position P2, the coupling protrusion 1524 leaves the coupling groove 1511, so that the second conductive element 1523 is separated from the first conductive element 1512, and The external device 1 is close to the ground and not electrically coupled to the control module 2 .

It should be noted that the alignment between the coupling protrusion 1524 and the coupling groove 1511 can effectively ensure that the image capturing unit 11 is reset to the working position, so that the image detection The range VR will not deviate due to being driven by the lifting device 15 .

Of course, in practice, the active fire extinguishing system 100' may further include a protective cover 6, the protective cover 6 is installed on the installation platform 1522, and covers the video camera unit 11 and the temperature camera Unit 13 to isolate the dust from the outside. Therefore, the protective cover 6 must be made of a material that does not affect the operation of the image capturing unit 11 and the temperature capturing unit 13 (for example: transparent acrylic plate). Accordingly, the cleaning period for the image capturing unit 11 and the temperature capturing unit 13 is effectively and greatly extended.

In addition, in a preferred embodiment, in order to prevent the lifting device 15 from pulling the pipeline of the fire extinguishing nozzle 14 during the movement, the driving mechanism 12 can further include two driving components 121 in this embodiment , and each of the driving components 121 includes a stepping motor (not shown in the figure) and a mounting frame (not shown in the figure). One of the driving components 121 is installed on the lifting device 15 and used for the installation of the temperature photography unit 13, while the other driving component 121 is installed on the ceiling CE and used for the fire extinguishing nozzle. 14 installation. Of course, the above-mentioned stepping motor can also be reasonably adjusted to other driving components (for example: servo motor) according to the situation.

[Third embodiment]

As shown in Figure 9, it is the third embodiment of the present invention. The active fire extinguishing system 100'' of this embodiment is similar to the active fire extinguishing system 100 of the first embodiment above, and the similarities between the two embodiments are not the same. Further details, the difference between the active fire extinguishing system 100'' of this embodiment and the first embodiment mainly lies in:

The active fire extinguishing system 100'' of this embodiment further includes an announcing module 3, an opening and closing module 4 and an announcing module 5 electrically coupled to the control module 2. The active fire extinguishing system 100'' can immediately notify the firefighting units nearby through the notification module 3, and can also prevent the active fire extinguishing system through the opening and closing module 4 and the broadcast module 5. The system 100'' misjudged and sprayed the fire extinguishing agent.

Specifically, the notification module 3 includes a communicator 31 and a player 32 in this embodiment, and the communicator 31 can communicate with the consumer unit in a local telephone mode. The player 32 can play a pre-recorded voice, and report the address to the consumer unit through the communicator 31 .

In actual situations, when the control module 2 determines that the first detected temperature is greater than the ignition temperature, the communicator 31 will dial to the fire department and play the pre-recorded voice, so that the fire department can know There is currently a fire at this address and assistance is required. In other words, when the control module 2 determines that the first detected temperature is greater than the ignition point temperature, a fire notification can be sent to adjacent fire-fighting units.

Furthermore, under special circumstances (for example: barbecue in the space), the active fire extinguishing system 100'' may misjudge the fire source as a fire factor. Therefore, the opening and closing module 4 and the broadcasting module 5 can effectively prevent the active fire extinguishing system 100'' from misjudging and extinguishing the fire source.

Specifically, the opening and closing module 4 is a control switch in this embodiment, and can manually connect and disconnect the electrical relationship between the control module 2 and the external device 1 . The broadcast module 5 can send out a notification voice when the first detected temperature is greater than the ignition temperature.

In actual situations, when the control module 2 determines that the first detected temperature exceeds the ignition temperature, the control module 2 can order the broadcast module to issue the notification voice through a signal, and the The control module 2 will wait for a number of seconds (for example: 20 seconds). At the same time, the user can disconnect the electrical relationship between the control module 2 and the external device 1 through the opening and closing module 4, so as to close the active fire extinguishing system 100'' to avoid The fire extinguishing nozzle 14 is activated.

Conversely, when the number of waiting seconds is exceeded, the control module 2 will control the driving mechanism 12 to drive the fire extinguishing nozzle 14, so that the fire extinguishing nozzle 14 sprays the Extinguishing agent.

[Fourth embodiment]

Referring to FIG. 10 , the fourth embodiment is the active fire extinguishing method of the present invention. The active fire extinguishing method provided by this embodiment is applicable to the active fire extinguishing system 100 of the aforementioned first embodiment. Therefore, please cooperate with Figure 1 to Figure 5 in due course. Referring to Fig. 10, the active fire extinguishing method disclosed in this embodiment includes steps S101 to S117. It should be noted that, any one of the above-mentioned steps can be omitted or replaced with a reasonable change according to the requirements of the designer.

Step S101: Use an image detection range VR to divide a plurality of identification blocks. Specifically, the image capturing unit 11 shoots toward the space PL, so that the image capturing unit 11 has the image detection range VR within the space PL. The image detection range VR is divided into a plurality of regions and defined as a plurality of identification blocks.

Step S103: Obtain a plurality of identification images within the image detection range VR according to the time axis. In detail, the image capturing unit 11 shoots toward the space PL, and acquires one identification image at each time point.

Step S105: Determine whether any one of the identified blocks has a smoke image by using the change value among the plurality of identified images. If yes, perform step S106: define the identified block with the smoke image as a smoke block, and execute step S107. If not, execute step S103.

In practice, the method of judging the smoke image can be the variation of the grayscale value as in the first embodiment, or other methods known to those skilled in the art (for example: the variation of the RGB value , or convolutional neural network), which will not be repeated here.

Step S107: Obtain a first detected temperature of the smoking block. That is to say, the temperature of the smoking block is acquired by the temperature photographing unit 13 .

Step S109: Determine whether the first detected temperature is greater than an ignition temperature. If yes, execute step S111. If not, execute step S103. Generally speaking, the ignition temperature is 100 degrees Celsius, but in special cases (such as chemical plants), the ignition temperature can be adjusted according to the environment. For example: in a space where a large amount of "camphor" (ignition point is 70 degrees Celsius) is stored, the ignition temperature is recommended to be set at 70 degrees Celsius.

Step S111 : Driving a fire extinguishing nozzle 14 to spray a fire extinguishing agent on the smoking block for a determination time. It should be noted that the active fire extinguishing system 100 can immediately detect the fire when it occurs, so the judgment time is usually not more than 10 minutes to extinguish the fire source, but in practice, the judgment time can still be determined according to Environmental adjustments.

Of course, while step S111 is being executed, the notification module 3 and the broadcast module 5 (as shown in FIG. 9 ) can also be used to notify the firefighting unit and notify personnel (for example: light, voice notification) and other actions. .

Step S113: Obtain a second detected temperature of the smoking block. That is to use the temperature imaging unit 13 to obtain the temperature of the smoking block again.

Step S115: judging whether the second detected temperature is greater than the ignition temperature. If yes, execute step S117. If not, execute step S103.

Step S117: Driving the fire extinguishing nozzle 14 to spray the fire extinguishing agent toward the eight identification blocks adjacent to the smoke generating block. Generally speaking, there may be a deviation between the smoking area in the identified image and the actual fire source. Therefore, in this step, the fire extinguishing nozzle 14 sprays the fire extinguishing agent toward the eight identification blocks adjacent to the smoke generating block, thereby expanding the spraying range of the fire extinguishing agent. In practice, the continuous spraying time of the fire extinguishing agent is within 10 minutes, and most of the newly ignited flames (or the fire source) can be extinguished immediately through the above steps.

[Technical effects of the embodiments of the present invention]

To sum up, the active fire extinguishing system and active fire extinguishing method disclosed in the embodiments of the present invention can use "the control module to detect the smoke-generating block and its temperature" and "the control module can control The driving mechanism drives the fire extinguishing nozzle, so that the fire extinguishing nozzle sprays the fire extinguishing agent towards the high-temperature smoking block, so that the fire point that has already smoked and produced flame can be instantly and quickly Accurately extinguished, so as to effectively avoid the fire.

The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.

100, 100’, 100’’: active fire suppression system 1: external device 11: Image photography unit 12: Driving mechanism 121: drive components 13: Temperature photography unit 14: Nozzle for fire extinguishing 15: Lifting equipment 151: Setting seat 1511: coupling slot 1512: first conductive member 152: Displacement Mechanism 1521: Lifting unit 1522: Mounting table 1523: Second Conductor 1524: Coupling bump 2: Control Module 3: Notification module 31: Communicator 32: Player 4: Opening and closing module 5: broadcast module 6: Protective cover PL: space CE: Ceiling VR: Image detection range OR: comparison image RI: Recognizing Image SD: smoke image TA: smoking block P1: working position P2: Standby position S101～S117: steps

FIG. 1 is a schematic side view of an active fire extinguishing system installed on a ceiling according to a first embodiment of the present invention.

FIG. 2 is a schematic top view of the image detection range of the image capture unit in space according to the first embodiment of the present invention.

FIG. 3 is a schematic circuit block diagram of the active fire extinguishing system according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram of a comparison image of the first embodiment of the present invention.

FIG. 5 is a schematic diagram of a recognized image according to a first embodiment of the present invention.

6 is a schematic side view of the active fire extinguishing system in the working position according to the second embodiment of the present invention.

FIG. 7 is an enlarged schematic view of an active fire extinguishing system according to a second embodiment of the present invention.

FIG. 8 is a schematic side view of the active fire extinguishing system in the ready position according to the second embodiment of the present invention.

FIG. 9 is a schematic circuit block diagram of an active fire extinguishing system according to a third embodiment of the present invention.

Fig. 10 is a schematic flowchart of an active fire extinguishing method according to a fourth embodiment of the present invention.

100: Active Fire Extinguishing System 1: external device 11: Image photography unit 12: Driving mechanism 13: Temperature photography unit 14: Nozzle for fire extinguishing 2: Control Module PL: space CE: Ceiling VR: Image detection range

Claims (9)

An active fire extinguishing system, suitable for installation in a space, the active fire extinguishing system includes: an external device, used to be installed in the space, the external device includes: an image photography unit, installed in the space There is an image detection range inside, and the image detection range defines a plurality of identification blocks, and the image capture unit obtains a plurality of identification images in the image detection range according to the time axis; a driving mechanism can swing And facing any one of the identification blocks; a temperature photography unit, set on the driving mechanism, the temperature photography unit can be driven by the driving mechanism to face any one of the identification blocks; and a fire extinguishing nozzle , arranged on the driving mechanism, the fire extinguishing nozzle can be driven by the driving mechanism, so that the fire extinguishing nozzle sprays a fire extinguishing agent towards any one of the identification blocks; and a control module, electrically coupled Connected to the external device, the control module can detect any one of the identified blocks as a smoking block through a plurality of the identified images; the control module can control the driving mechanism to drive the temperature The camera unit faces the smoke-generating block to obtain a first detection temperature; the control module can control the driving mechanism to drive the fire extinguishing nozzle when the first detection temperature exceeds an ignition temperature, so that the The fire extinguishing nozzle sprays the fire extinguishing agent towards the smoking block; wherein, when the fire extinguishing nozzle sprays the fire extinguishing agent towards the smoking block within a determined time, the control module passes The temperature photographing unit obtains a second detected temperature of the smoking block again; when the control module determines that the second detected temperature is greater than the ignition temperature, the fire extinguishing nozzle is driven by the driving mechanism , so that the fire extinguishing nozzle can spray the fire extinguishing agent toward the eight identification blocks adjacent to the smoking block. The active fire extinguishing system as described in Claim 1 further comprises a lifting device, and the lifting device includes: a setting seat for setting on a ceiling in the space; and a displacement mechanism installed on the Set on the seat, and the displacement mechanism can drive the external equipment to move between a maintenance position and a working position; wherein, when the external equipment is in the working position, the external equipment is fixed on the Set on the seat; when the external equipment is in the maintenance position, the external equipment is away from the set seat. The active fire extinguishing system according to claim 2, wherein, the installation seat includes a coupling groove, and the displacement mechanism includes a lifting unit, a mounting table for the installation of the external equipment, and a A coupling protrusion on the platform, the lifting unit can drive the installation platform to move, the coupling protrusion can geometrically fit the coupling groove; the lifting unit can use the coupling protrusion and the The coupling slots are aligned with each other, so that the external device is positioned at the working position. The active fire extinguishing system according to claim 3, wherein the setting seat further includes a first conductive element, the first conductive element is arranged on the inner edge of the coupling groove, and the first conductive element Electrically coupled to the control module; the displacement mechanism further includes a second conductive member, the second conductive member is disposed on the outer edge of the coupling bump, and the second conductive member is electrically coupled connected to the external device; when the external device is at the working position, the external device is electrically coupled to the first conductive member through the second conductive member, so that the external device is electrically coupled to the The control module; when the external device is in the standby position, the second conductive member is separated from the first conductive member, so that the external device is not electrically coupled to the control module. The active fire extinguishing system according to claim 1, wherein the fire extinguishing nozzle is driven by the driving mechanism to spray the fire extinguishing agent one by one toward the eight identification blocks adjacent to the smoking block. The active fire extinguishing system according to claim 1, wherein the fire extinguishing nozzle includes a spray head capable of spraying the fire extinguishing agent and a spray angle adjustment member arranged on the spray head, and the spray angle adjustment member can Adjusting the spray angle of the fire extinguishing agent when it leaves the nozzle, so that the fire extinguishing agent can cover the eight identification blocks adjacent to the smoking block. The active fire extinguishing system according to claim 1, further comprising a notification module electrically coupled to the control module, the notification module determines that the first detected temperature is greater than the When the ignition temperature is reached, a fire notification can be issued to the adjacent firefighting units. The active fire extinguishing system as described in claim 1 further includes an opening and closing module and a broadcasting module electrically coupled to the control module, and the broadcasting module determines the first when the control module determines the When the detected temperature is greater than the ignition temperature, the announcement module sends a notification voice; the opening and closing module can connect and disconnect the electrical relationship between the control module and the external equipment. An active fire extinguishing method, comprising the following steps: (a) using an image detection range to divide multiple identification blocks; (b) obtaining multiple identification images within the image detection range according to the time axis; (c) using multiple Determine whether any one of the identified blocks has a smoke image based on the change value between the identified images; if so, define the identified block with the smoke image as a smoke block, and perform the steps (d); if not, perform step (b); (d) obtaining a first detection temperature of the smoking block; (e) judging whether the first detection temperature is greater than an ignition temperature; if yes, performing step (f); if not, performing step (b); (f) driving a fire extinguishing nozzle to spray a fire extinguishing agent on the smoke block for a determination time; (g) obtaining a second detected temperature of the smoke block; (h) judging the second detection Whether the temperature is greater than the ignition temperature; if yes, perform step (i); if not, perform step (b); (i) drive the fire extinguishing nozzle toward the eight identification blocks adjacent to the smoke block Spray the fire extinguishing agent.

Images