CN113487825A - Fire danger judgment method and intelligent safety system - Google Patents
Fire danger judgment method and intelligent safety system Download PDFInfo
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- CN113487825A CN113487825A CN202110754237.9A CN202110754237A CN113487825A CN 113487825 A CN113487825 A CN 113487825A CN 202110754237 A CN202110754237 A CN 202110754237A CN 113487825 A CN113487825 A CN 113487825A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000779 smoke Substances 0.000 claims abstract description 97
- 238000001514 detection method Methods 0.000 claims abstract description 63
- 238000012544 monitoring process Methods 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims description 9
- 230000035945 sensitivity Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire Alarms (AREA)
Abstract
The invention provides a fire disaster dangerous case judgment method and an intelligent safety system, comprising the following steps: the intelligent safety system operates and sets initial time, the smoke detection sensor detects whether smoke concentration continuously exceeds a set threshold value for more than 7 seconds in real time, the flame pulse sensor automatically monitors whether flame pulse counting exceeds the set threshold value every 5 seconds from the initial time, the monitoring terminal processing center judges whether fire danger exists or not, a fire danger alarm is sent to the cloud server, the intelligent safety system starts the automatic fire extinguishing module, the fire danger is eliminated, and the fire danger alarm is sent to managers. According to the invention, the smoke concentration and the flame pulse count of the detected area are monitored simultaneously, and a certain continuous measurement time condition is set, so that the accuracy of fire hazard judgment is greatly improved, and the set automatic fire extinguishing module can automatically eliminate the fire hazard, thereby solving the problems that the traditional fire alarm has high false alarm rate and can not actively extinguish fire.
Description
Technical Field
The invention relates to the technical field of Internet, in particular to a fire disaster dangerous case judgment method and an intelligent safety system.
Background
The traditional fire alarm system generally detects smoke concentration or site temperature or ultraviolet intensity, detects that smoke is larger than a certain proportion or the site temperature is higher than a certain threshold or the ultraviolet intensity exceeds a certain threshold, triggers alarm, is relatively single monitoring, cannot find fire dangerous situations in early stage, is easier to generate misjudgment, and does not have an automatic emergency fire extinguishing system.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a fire dangerous case judgment method and an intelligent safety system, the accuracy of fire dangerous case judgment is greatly improved by simultaneously monitoring the smoke concentration and the flame pulse count of a detected area and setting a certain continuous measurement time condition, and the arranged automatic fire extinguishing module can automatically eliminate the fire dangerous case and solve the problems that the traditional fire alarm has higher false alarm rate and can not actively extinguish fire.
The fire danger judgment method comprises the following steps:
step 1: the intelligent safety system starts to operate;
step 2: setting initial time by the intelligent safety system;
and step 3: the smoke detection sensor detects whether the smoke concentration exceeds a set threshold value in real time from the initial time;
and 4, step 4: when the smoke detection sensor detects that the smoke concentration exceeds a set threshold, the smoke detection sensor analyzes whether the time that the smoke concentration continuously exceeds the set threshold exceeds 7 seconds;
and 5: when the smoke detection sensor analyzes that the time that the smoke concentration continuously exceeds the set threshold value exceeds 7 seconds, the smoke detection sensor automatically detects whether a detection result is sent to a monitoring processing center within 5 seconds;
step 6: when the smoke detection sensor does not send a detection result to the monitoring end processing center within 5 seconds after self-detection, the smoke detection sensor sends a smoke alarm to the monitoring end processing center;
and 7: the flame pulse sensor automatically monitors whether the flame pulse count exceeds a set threshold value every 5 seconds from the initial time;
and 8: when the flame pulse sensor monitors that the flame pulse count exceeds a set threshold, the flame pulse sensor sends a flame alarm to a monitoring end processing center;
and step 9: the monitoring end processing center judges that a fire disaster dangerous case exists and sends a fire disaster dangerous case alarm to the cloud server;
step 10: the cloud server checks whether the automatic fire extinguishing module is started;
step 11: when the cloud server detects that the automatic fire extinguishing module is started, the intelligent safety system starts the automatic fire extinguishing module, eliminates fire danger, sends a fire danger alarm to management personnel, and then executes the step 2.
The invention is further improved, in the step 3: when the smoke detection sensor detects that the smoke concentration does not exceed the set threshold, the smoke detection sensor sets the current time as the initial time of the smoke detection sensor, and step 3 is executed again, wherein the initial set threshold of the smoke concentration is 4%/foot.
In a further improvement of the present invention, in step 4, when the smoke detection sensor analyzes that the time that the smoke concentration continuously exceeds the set threshold does not exceed 7 seconds, the smoke detection sensor sets the current time as the initial time of the smoke detection sensor, and step 3 is executed again.
In step 5, when the smoke detection sensor sends a detection result to the monitoring end processing center within 5 seconds after self-detection, the smoke detection sensor sets the current time as the initial time of the smoke detection sensor, and executes step 3 again.
In step 7, when the flame pulse sensor detects that the flame pulse count does not exceed the set threshold, the flame pulse sensor clears the pulse count, sets the current time as the initial time of the flame pulse sensor, and executes step 7 again, wherein the initial set threshold of the flame pulse count is 5.
In step 10, when the cloud server checks that the automatic fire extinguishing module is not started, the cloud server sends a fire danger alarm to a manager, and the manager can manually start the automatic fire extinguishing module to eliminate the fire danger.
In a further improvement of the present invention, in the step 3, the flame pulse sensor generates a flame pulse having a sensitivity width of a wavelength range of ultraviolet rays from 760nm to 1100 nm.
The invention is further improved, in the step 10, the automatic fire extinguishing module comprises a standby power supply module, an automatic spraying fire extinguishing module and an automatic dry powder throwing fire extinguishing ball module, in the step 11, the mode of eliminating the fire danger of the intelligent safety system is that the power supply of the fire danger area is cut off firstly, then the standby power supply module supplies power to start the automatic dry powder throwing fire extinguishing ball module and the automatic spraying fire extinguishing module, and the fire danger is eliminated.
The invention also provides an intelligent safety system for realizing the method for judging the fire dangerous case, which comprises a monitoring end and a cloud server, wherein the cloud server comprises:
the first information receiving module is used for receiving and sending fire disaster dangerous case alarm by the monitoring terminal;
the first information sending module is used for sending a fire danger alarm to a manager;
the processing center module is used for checking whether the automatic fire extinguishing module is started or not, and starting the automatic fire extinguishing module to eliminate fire danger;
and the automatic fire extinguishing module is used for starting the automatic dry powder throwing fire extinguishing ball module and the automatic spraying fire extinguishing module through the power supply of the standby power supply module so as to eliminate fire danger.
In a further improvement of the present invention, the monitoring terminal includes:
the monitoring terminal processing center is used for setting initial time, judging that fire dangerous situations exist, and sending a fire dangerous situation alarm to the cloud server;
the smoke detection sensor is used for detecting whether the smoke concentration exceeds a set threshold value in real time, analyzing whether the time that the smoke concentration continuously exceeds the set threshold value exceeds 7 seconds, self-checking whether a detection result is sent to the monitoring end processing center within 5 seconds, and sending a smoke alarm to the monitoring end processing center;
and the flame pulse sensor is used for automatically monitoring whether the flame pulse count exceeds a set threshold value every 5 seconds, and sending a flame alarm to the monitoring end processing center.
The invention has the beneficial effects that: by monitoring the smoke concentration and the flame pulse counting of the detected area at the same time and setting a certain continuous measuring time condition, the accuracy of fire hazard judgment is greatly improved, the set automatic fire extinguishing module can automatically eliminate the fire hazard, and the problems that the conventional fire alarm has high false alarm rate and can not actively extinguish fire are solved.
Drawings
FIG. 1 is a flowchart illustrating a fire risk judging method according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, a fire danger determination method according to the present invention includes the steps of:
step 1: the intelligent safety system starts to operate;
step 2: setting initial time by the intelligent safety system;
and step 3: the smoke detection sensor detects whether the smoke concentration exceeds a set threshold value in real time from the initial time;
and 4, step 4: when the smoke detection sensor detects that the smoke concentration exceeds a set threshold, the smoke detection sensor analyzes whether the time that the smoke concentration continuously exceeds the set threshold exceeds 7 seconds;
and 5: when the smoke detection sensor analyzes that the time that the smoke concentration continuously exceeds the set threshold value exceeds 7 seconds, the smoke detection sensor automatically detects whether a detection result is sent to a monitoring processing center within 5 seconds;
step 6: when the smoke detection sensor does not send a detection result to the monitoring end processing center within 5 seconds after self-detection, the smoke detection sensor sends a smoke alarm to the monitoring end processing center;
and 7: the flame pulse sensor automatically monitors whether the flame pulse count exceeds a set threshold value every 5 seconds from the initial time;
and 8: when the flame pulse sensor monitors that the flame pulse count exceeds a set threshold, the flame pulse sensor sends a flame alarm to a monitoring end processing center;
and step 9: the monitoring end processing center judges that a fire disaster dangerous case exists and sends a fire disaster dangerous case alarm to the cloud server;
step 10: the cloud server checks whether the automatic fire extinguishing module is started;
step 11: when the cloud server detects that the automatic fire extinguishing module is started, the intelligent safety system starts the automatic fire extinguishing module, eliminates fire danger, sends a fire danger alarm to management personnel, and then executes the step 2.
Referring to fig. 1, in step 3: when the smoke detection sensor detects that the smoke concentration does not exceed the set threshold, the smoke detection sensor sets the current time as the initial time of the smoke detection sensor, and step 3 is executed again, wherein the initial set threshold of the smoke concentration is 4%/foot. In this embodiment, the ionization chamber of the NIS-07 ion smoke detector is adopted as the smoke detection sensor, and the working principle is that when the ionization electron current flowing through the inner ionization chamber and the outer ionization chamber is unbalanced, the collector is charged until the ionization current reaches balance, when no smoke or no combustion object exists, the collector keeps a balance potential except for the influence of the statistical fluctuation of the ionization current, when smoke enters the ionization chamber, the ionization current is influenced, the influence of the outer ionization chamber which is easy to enter the smoke is larger than that of the inner ionization chamber, the ionization current is reduced, the collector is charged again until a new balance potential, and the effect of monitoring the smoke concentration value is achieved by utilizing the potential change. The NIS-07 ion smoke detector ionization chamber has small volume and is convenient to install; under the conditions of relative temperature, humidity of 40 ℃ and 95 percent, the change value of the balance potential of the collector is within the range of basic parameters, and the stability is high; the ionization chamber structure can also prevent external insects and other small animals from entering the ionization chamber to cause damage, and the safety is high; the stainless steel, the manufacturing material of the polyacid ester and the metal palladium on the surface of the ionization source have high corrosion resistance and long service life; all welding points are coated with welding flux in advance, so that welding and installation are facilitated; the induced concentration range for smoke is 0-6%/foot.
Referring to fig. 1, in step 4, when the smoke detection sensor analyzes that the time during which the smoke concentration continuously exceeds the set threshold does not exceed 7 seconds, the smoke detection sensor sets the current time as its initial time, and re-executes the duration condition of step 3, 7 seconds, which can greatly reduce the misjudgment of the smoke concentration.
Referring to fig. 1, in step 5, when the smoke detection sensor detects that the detection result has been sent to the monitoring processing center within 5 seconds, the smoke detection sensor sets the current time as its initial time, and re-executes step 3 to prevent reporting from being too frequent.
Referring to fig. 1, in step 7, when the flame pulse sensor monitors that the flame pulse count does not exceed the set threshold, the flame pulse sensor clears the pulse count, sets the current time as its initial time, and re-executes step 7, wherein the initial set threshold of the flame pulse count is 5, which can be adjusted to an integer value between 1 and 100, so as to adjust the sensitivity to adapt to different environments. In this embodiment, the flame pulse sensor employs an R2868 ultraviolet spectrum flame detector, and utilizes a metal photoelectric effect and a current multiplication effect of gas discharge. It has an extremely narrow sensitivity width from 760nm to 1100nm and is completely insensitive to visible light. Because the discharge phenomenon is utilized, the high sensitivity and the output pulse which is large enough can be obtained, so that the flame pulse counting detection with high sensitivity and quick response can be realized through a simple circuit.
Referring to fig. 1, in step 10, when the cloud server checks that the automatic fire extinguishing module is not turned on, the cloud server sends a fire emergency alarm to a manager, and the manager can manually turn on the automatic fire extinguishing module to eliminate the fire emergency.
Referring to fig. 1, in step 3, the flame pulse sensor generates a flame pulse with a sensitivity width of the ultraviolet wavelength range from 760nm to 1100 nm.
Referring to fig. 1, in the step 10, the automatic fire extinguishing module includes a standby power module, an automatic spraying fire extinguishing module and an automatic dry powder throwing fire extinguishing ball module, and in the step 11, the intelligent safety system eliminates the fire danger by first cutting off the power supply of the fire danger area, and then starting the automatic dry powder throwing fire extinguishing ball module and the automatic spraying fire extinguishing module by the power supply of the standby power module to eliminate the fire danger.
Referring to fig. 1, the present invention further provides an intelligent security system for implementing the method for determining a fire dangerous situation, including a monitoring terminal and a cloud server, wherein the cloud server includes:
the first information receiving module is used for receiving and sending fire disaster dangerous case alarm by the monitoring terminal;
the first information sending module is used for sending a fire danger alarm to a manager;
the processing center module is used for checking whether the automatic fire extinguishing module is started or not, and starting the automatic fire extinguishing module to eliminate fire danger;
and the automatic fire extinguishing module is used for starting the automatic dry powder throwing fire extinguishing ball module and the automatic spraying fire extinguishing module through the power supply of the standby power supply module so as to eliminate fire danger.
Referring to fig. 1, the monitoring terminal includes:
the monitoring terminal processing center is used for setting initial time, judging that fire dangerous situations exist, and sending a fire dangerous situation alarm to the cloud server;
the smoke detection sensor is used for detecting whether the smoke concentration exceeds a set threshold value in real time, analyzing whether the time that the smoke concentration continuously exceeds the set threshold value exceeds 7 seconds, self-checking whether a detection result is sent to the monitoring end processing center within 5 seconds, and sending a smoke alarm to the monitoring end processing center;
and the flame pulse sensor is used for automatically monitoring whether the flame pulse count exceeds a set threshold value every 5 seconds, and sending a flame alarm to the monitoring end processing center.
From the above, the beneficial effects of the invention are as follows: by monitoring the smoke concentration and the flame pulse counting of the detected area at the same time and setting a certain continuous measuring time condition, the accuracy of fire hazard judgment is greatly improved, the set automatic fire extinguishing module can automatically eliminate the fire hazard, and the problems that the conventional fire alarm has high false alarm rate and can not actively extinguish fire are solved.
The above-described embodiments are intended to be illustrative, and not restrictive, of the invention, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A fire danger judgment method is characterized by comprising the following steps:
step 1: the intelligent safety system starts to operate;
step 2: setting initial time by the intelligent safety system;
and step 3: the smoke detection sensor detects whether the smoke concentration exceeds a set threshold value in real time from the initial time;
and 4, step 4: when the smoke detection sensor detects that the smoke concentration exceeds a set threshold, the smoke detection sensor analyzes whether the time that the smoke concentration continuously exceeds the set threshold exceeds 7 seconds;
and 5: when the smoke detection sensor analyzes that the time that the smoke concentration continuously exceeds the set threshold value exceeds 7 seconds, the smoke detection sensor automatically detects whether a detection result is sent to a monitoring processing center within 5 seconds;
step 6: when the smoke detection sensor does not send a detection result to the monitoring end processing center within 5 seconds after self-detection, the smoke detection sensor sends a smoke alarm to the monitoring end processing center;
and 7: the flame pulse sensor automatically monitors whether the flame pulse count exceeds a set threshold value every 5 seconds from the initial time;
and 8: when the flame pulse sensor monitors that the flame pulse count exceeds a set threshold, the flame pulse sensor sends a flame alarm to a monitoring end processing center;
and step 9: the monitoring end processing center judges that a fire disaster dangerous case exists and sends a fire disaster dangerous case alarm to the cloud server;
step 10: the cloud server checks whether the automatic fire extinguishing module is started;
step 11: when the cloud server detects that the automatic fire extinguishing module is started, the intelligent safety system starts the automatic fire extinguishing module, eliminates fire danger, sends a fire danger alarm to management personnel, and then executes the step 2.
2. A fire risk judging method according to claim 1, wherein in the step 3: when the smoke detection sensor detects that the smoke concentration does not exceed the set threshold, the smoke detection sensor sets the current time as the initial time of the smoke detection sensor, and step 3 is executed again, wherein the initial set threshold of the smoke concentration is 4%/foot.
3. A fire risk judging method according to claim 2, wherein in the step 4, when the smoke detecting sensor analyzes that the time during which the smoke concentration continuously exceeds the set threshold value does not exceed 7 seconds, the smoke detecting sensor sets the current time as its initial time and re-executes the step 3.
4. A fire risk judging method according to claim 3, wherein in the step 5, when the smoke detecting sensor has sent the detection result to the monitoring-end processing center within 5 seconds by self-detection, the smoke detecting sensor sets the current time as its initial time and re-executes the step 3.
5. The fire risk judging method according to claim 4, wherein in the step 7, when the flame pulse sensor detects that the flame pulse count does not exceed the set threshold, the flame pulse sensor clears the pulse count, sets the current time as its initial time, and re-executes the step 7, wherein the flame pulse count is initially set to 5.
6. The fire risk judging method according to claim 5, wherein in the step 10, when the cloud server checks that the automatic fire extinguishing module is not turned on, the cloud server transmits a fire risk alarm to a manager, and the manager can manually turn on the automatic fire extinguishing module to remove the fire risk.
7. The fire risk judging method according to claim 6, wherein in the step 3, the flame pulse sensor generates the flame pulse with a sensitivity width of a sensing ultraviolet wavelength range of 760nm to 1100 nm.
8. The fire danger judging method according to claim 7, wherein in the step 10, the automatic fire extinguishing module comprises a standby power supply module, an automatic spray fire extinguishing module and an automatic dry powder throwing fire extinguishing ball module, and in the step 11, the intelligent safety system eliminates the fire danger by first cutting off the power supply of the fire danger area and then starting the automatic dry powder throwing fire extinguishing ball module and the automatic spray fire extinguishing module through the power supply of the standby power supply module to eliminate the fire danger.
9. An intelligent security system for implementing the fire danger judging method according to any one of claims 1 to 8, comprising a monitoring end and a cloud server, wherein the cloud server comprises:
the first information receiving module is used for receiving and sending fire disaster dangerous case alarm by the monitoring terminal;
the first information sending module is used for sending a fire danger alarm to a manager;
the processing center module is used for checking whether the automatic fire extinguishing module is started or not, and starting the automatic fire extinguishing module to eliminate fire danger;
and the automatic fire extinguishing module is used for starting the automatic dry powder throwing fire extinguishing ball module and the automatic spraying fire extinguishing module through the power supply of the standby power supply module so as to eliminate fire danger.
10. The smart security system of claim 9, wherein the monitoring terminal comprises:
the monitoring terminal processing center is used for setting initial time, judging that fire dangerous situations exist, and sending a fire dangerous situation alarm to the cloud server;
the smoke detection sensor is used for detecting whether the smoke concentration exceeds a set threshold value in real time, analyzing whether the time that the smoke concentration continuously exceeds the set threshold value exceeds 7 seconds, self-checking whether a detection result is sent to the monitoring end processing center within 5 seconds, and sending a smoke alarm to the monitoring end processing center;
and the flame pulse sensor is used for automatically monitoring whether the flame pulse count exceeds a set threshold value every 5 seconds, and sending a flame alarm to the monitoring end processing center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110754237.9A CN113487825A (en) | 2021-07-01 | 2021-07-01 | Fire danger judgment method and intelligent safety system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110754237.9A CN113487825A (en) | 2021-07-01 | 2021-07-01 | Fire danger judgment method and intelligent safety system |
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| CN113487825A true CN113487825A (en) | 2021-10-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117445669A (en) * | 2023-11-03 | 2024-01-26 | 北京悟空出行科技有限公司 | Electric automobile fire monitoring management system based on center platform system |
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2021
- 2021-07-01 CN CN202110754237.9A patent/CN113487825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117445669A (en) * | 2023-11-03 | 2024-01-26 | 北京悟空出行科技有限公司 | Electric automobile fire monitoring management system based on center platform system |
| CN117445669B (en) * | 2023-11-03 | 2024-05-07 | 北京悟空出行科技有限公司 | Electric automobile fire monitoring management system based on center platform system |
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