CN109215296A - A kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger - Google Patents
A kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger Download PDFInfo
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- CN109215296A CN109215296A CN201811168893.5A CN201811168893A CN109215296A CN 109215296 A CN109215296 A CN 109215296A CN 201811168893 A CN201811168893 A CN 201811168893A CN 109215296 A CN109215296 A CN 109215296A
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- liquefied ammonia
- image
- holder
- concentration
- alarm system
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/16—Combustible gas alarms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/10—Terrestrial scenes
Abstract
A kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger, includes concentration sensor, image capture device, gateway and remote server, concentration sensor is mounted at liquefied ammonia holder, detects to the ammonia concentration at liquefied ammonia holder；Image capture device is mounted at liquefied ammonia holder, carries out image taking to liquefied ammonia holder；Gateway is separately connected each concentration sensor and image capture device；Remote server connects the gateway, to obtain the concentration data and image data of concentration sensor and image capture device acquisition, integrated treatment is carried out to the corresponding concentration data of same liquefied ammonia holder and image data, judge whether the liquefied ammonia holder leaks, and when liquefied ammonia holder leaks, according to the corresponding relationship of preset liquefied ammonia holder and corresponding emergency contact, corresponding emergency contact is notified by mobile terminal.The present invention is made whether the judgement of leakage to liquefied ammonia holder, and judging result is more accurate, and rate of false alarm is low.
Description
Technical field
The invention belongs to toxic, inflammable, irritant gas storing technology fields, raw for safety more particularly to one kind
The liquefied ammonia for producing accident potential's monitoring reveals alarm system.
Background technique
Liquefied ammonia is gas that is a kind of colourless but having penetrating odor, inflammable, soluble easily in water, once leakage accident occurs,
Strong influence will be generated to human body and peripheral facilities, less serious case causes personal injury and equipment damage, and severe one causes casualties
And production halt production accident, consequence are hardly imaginable.Many companies develop some monitoring devices and are monitored to liquefied ammonia thus, at present
Most of liquefied ammonia monitoring systems are provided with automatic alarm ability, and basic functional principle is: pacifying in liquefied ammonia bucket position
Ammonia concentration sensor is filled, when the concentration that ammonia concentration sensor detects is more than preset value, controller generates controlling alarm
Treatment measures are alarmed and/or taken to instruction control alarm unit.As patent CN106468900A discloses a kind of liquefied ammonia storage
Tank remote monitoring system pops up warning window when ammonia tank room concentration over-standard alarm, and while alarm, carries out voice and broadcast
It reports, combined aural and visual alarm starts immediately in operating room, while starting ammonia tank room exhaust fan, spray equipment and cutting off other power supplys.
However, find in actual use, since monitoring device is applied to ammonia environment, the ammonia of normal use in work
After gas is detected by concentration sensor, also can trigger controller generate controlling alarm instruction control alarm unit carry out alarm and/
Or treatment measures are taken, it causes to report by mistake.
Summary of the invention
The technical problem to be solved in the present invention is that for finding in actual use in the prior art, due to prison
Equipment application is controlled after the ammonia of normal use is detected by concentration sensor in ammonia environment, work, also can trigger controller produce
Treatment measures are alarmed and/or taken to raw controlling alarm instruction control alarm unit, is caused wrong report defect, is provided one kind and be used for
The liquefied ammonia of industrial accident hidden danger monitoring reveals alarm system.
The technical solution adopted by the present invention to solve the technical problems is: a kind of to monitor for industrial accident hidden danger
Liquefied ammonia reveals alarm system, includes:
Concentration sensor detects the ammonia concentration at liquefied ammonia holder for being mounted at liquefied ammonia holder；
Image capture device carries out image taking to liquefied ammonia holder for being mounted at liquefied ammonia holder；
Gateway is separately connected each concentration sensor and image capture device；
Remote server connects the gateway, to obtain the concentration data of concentration sensor and image capture device acquisition
And image data, for carrying out integrated treatment to the corresponding concentration data of same liquefied ammonia holder and image data, judgement should
Whether liquefied ammonia holder leaks, and when liquefied ammonia holder leaks, according to preset liquefied ammonia holder with it is corresponding
The corresponding relationship of emergency contact notifies corresponding emergency contact by mobile terminal.
Further, described to notify corresponding emergency contact to specifically refer to by mobile terminal: to send word message extremely
Mobile terminal notifies emergency contact and/or establishes voice conversation to notify emergency contact.
Further, the corresponding concentration data of the same liquefied ammonia holder and image data carry out integrated treatment, sentence
Break the liquefied ammonia holder whether occur leakage specifically comprise the following steps:
S31, judge whether the real-time concentration of concentration sensor acquisition is greater than concentration preset value；If so, being transferred to step
Otherwise S32 assert that liquefied ammonia holder does not leak；
S32, the realtime image data that image capture device acquires is subtracted each other with preset standard image data, is obtained
Error image；The standard picture is the liquid of the manual control monitoring device shooting of acquisition in advance when liquefied ammonia does not leak
Image at ammonia holder；Wherein, described image acquisition equipment is always maintained at fixed angle and carries out image taking；
S33, error image is compared with preset A leak of liquefied ammonia status image, according to the similarity of the two, judgement
Whether liquefied ammonia holder leaks；The judgment criteria that liquefied ammonia holder leaks is that the similarity is greater than preset value.
Further, the corresponding concentration data of the same liquefied ammonia holder and image data carry out integrated treatment, sentence
Whether the liquefied ammonia holder that breaks occurs leakage and specifically comprises the following steps: to carry out image point to the image that image capture device acquires
Analysis, judges a possibility that A leak of liquefied ammonia may occur, and quantified, obtains the first quantized value, to concentration sensor acquisition
Data carry out a possibility that A leak of liquefied ammonia may occur for data analytical judgment, and are quantified, and obtain the second quantized value, then root
Judge whether liquefied ammonia leaks according to the first quantized value and the second quantized value, judgment rule is whether comprehensive quantification value reaches threshold
Value；
Wherein, comprehensive quantification value=K1* the first quantized value+K2* the second quantized value, K1、K2For preset weight, and K1With K2
It is all larger than 0.
Further, the monitoring device is always maintained at fixed angle and carries out image taking；First quantized value obtains step
Suddenly it specifically includes:
(1) in advance when liquefied ammonia does not leak, the image of manual control image capture device shooting is obtained, and is stored as
Standard picture；
(2) realtime graphic of real-time image acquisition acquisition equipment automatic shooting, realtime graphic and standard picture are made the difference, obtained
Error image out；
(3) error image is compared with preset A leak of liquefied ammonia status image, judges the similarity of the two；
(4) quantized value is obtained according to the similarity.
Further, the second quantized value show that step specifically includes:
(1) real-time ammonia concentration value at the storage position that concentration sensor real-time detection arrives is obtained；
(2) it is worth the second quantized value according to real-time ammonia concentration.
Further, K1/K2∈[0.4,0.6]。
Further, positioning device is installed, positioning device is also connected to the gateway, will position at liquefied ammonia holder
Information is sent to remote server, and when liquefied ammonia holder leaks, remote server will also be sent to the mobile terminal
Navigation Control instruction；Include the location information of the liquefied ammonia holder leaked in the Navigation Control instruction
The mobile terminal is preinstalled with APP, and the APP is used for after receiving the Navigation Control instruction, and it is fixed to identify
Position information, and established at the mobile terminal according to the location information identified to the guidance path of location information corresponding position
And it navigates.
Further, in a kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger of the invention,
There is video switch, for sending video request instruction to remote server, far when video switch is triggered in the APP
Journey server is after receiving the video request instruction, by the image capture device acquisition at the liquefied ammonia holder leaked
Video frame sync is sent to the APP, to be shown on the APP.
Implement a kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger of the invention has with following
Beneficial effect: the present invention is using the concentration data of concentration sensor acquisition and the image data synthesis pair of image capture device acquisition
Liquefied ammonia holder is made whether the judgement of leakage, and judging result is more accurate, and rate of false alarm is low.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is that a kind of liquefied ammonia for the monitoring of industrial accident hidden danger of the invention reveals one embodiment of alarm system
Schematic diagram；
Fig. 2 is that the first quantized value of the invention obtains flow chart.
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
With reference to Fig. 1, alarm system one is revealed for a kind of liquefied ammonia for the monitoring of industrial accident hidden danger of the invention
The schematic diagram of embodiment, in the present embodiment, the system are monitored alarm, liquefied ammonia holder difference to n liquefied ammonia holder
For liquefied ammonia holder 1, liquefied ammonia holder 2 ..., liquefied ammonia holder n, wherein n >=1.It is installed respectively at each liquefied ammonia holder
By a concentration sensor, respectively concentration sensor 1, concentration sensor 2 ..., concentration sensor 2, respectively to each liquid
Ammonia concentration at ammonia holder (outside liquefied ammonia holder) is detected.Meanwhile it being installed respectively at each liquefied ammonia holder
One image capture device, respectively image capture device 1, image capture device 2 ..., image capture device n, with right respectively
Each liquefied ammonia holder carries out image taking, and image capture device can be realized by video camera.It should be understood that in this hair
In bright other embodiments, can multiple liquefied ammonia holders at same position can share a concentration sensor, adopting
With concentration carry out leakage judge when, then be to multiple liquefied ammonia holders while to judge；Similarly, image capture device can also be with
By the way of shared, which is not described herein again.
Each concentration sensor and each image capture device are separately connected a gateway, when connection can using wired or
Person is wirelessly.Remote server connects gateway, to obtain the concentration data of concentration sensor and image capture device acquisition
And image data, for carrying out integrated treatment to the corresponding concentration data of same liquefied ammonia holder and image data, judgement should
Whether liquefied ammonia holder leaks, and when liquefied ammonia holder leaks, according to preset liquefied ammonia holder with it is corresponding
The corresponding relationship of emergency contact notifies corresponding emergency contact by mobile terminal.It is notified by mobile terminal corresponding
Emergency contact specifically refers to: sending word message to mobile terminal and notifies emergency contact and/or establish voice conversation notice
Emergency contact.Send word message can be send short message, wechat message, QQ message etc. it is therein any one, establish language
Sound session refers to by making a phone call, any one in wechat phone, QQ phone etc., implementation for example: put through corresponding
The phone of emergency contact after closing of the circuit, passes through the pre-stored sound template in backstage, sends the verbal announcement " liquid at xxx
Ammonia holder leaks, and please arrangement is handled rapidly ".It is people from corporation responsibility or related that above-mentioned corresponding relationship, which for example can be,
The inspection personnel of department accesses remote server by mobile terminal or fixing end, and carries out registration storage and obtain.In this reality
It applies in example, each liquefied ammonia holder is corresponding with an emergency contact (mobile terminal 1 i.e. in figure), but in of the invention its
It can be that multiple liquefied ammonia holders are corresponding with an emergency contact or each liquefied ammonia holder is corresponding in his embodiment
Multiple emergency contacts.
Concentration data corresponding for same liquefied ammonia holder and image data carry out integrated treatment, judge that the liquefied ammonia stores up
Store whether bucket leaks, the present invention provides following two kinds of implementations, and but the invention is not restricted to this.
The first specific implementation specifically comprises the following steps:
S31, judge whether the real-time concentration of concentration sensor acquisition is greater than concentration preset value；If so, being transferred to step
Otherwise S32 assert that liquefied ammonia holder does not leak.
S32, the realtime image data that image capture device acquires is subtracted each other with preset standard image data, is obtained
Error image；The standard picture is the liquid of the manual control monitoring device shooting of acquisition in advance when liquefied ammonia does not leak
Image at ammonia holder；Wherein, described image acquisition equipment is always maintained at fixed angle and carries out image taking.
S33, error image is compared with preset A leak of liquefied ammonia status image, according to the similarity of the two, judgement
Whether liquefied ammonia holder leaks；The judgment criteria that liquefied ammonia holder leaks is that the similarity is greater than preset value.Liquid
Image when NH_3 leakage status image is A leak of liquefied ammonia, if liquefied ammonia is atomized image, the liquefied ammonia that can occur before in advance
Image when leakage extracts.If the two similarity is more than preset value, decision bits liquefied ammonia is leaked, is not otherwise let out
Leakage.
Second of specific implementation specifically comprises the following steps:
Image analysis is carried out to the image of image capture device acquisition, judges a possibility that A leak of liquefied ammonia may occur, and
Quantified, obtain the first quantized value, data are carried out to the data of concentration sensor acquisition and analyze and determine that liquefied ammonia, which may occur, to be let out
A possibility that leakage, and quantified, it obtains the second quantized value, then judges that liquefied ammonia is according to the first quantized value and the second quantized value
No to leak, judgment rule is whether comprehensive quantification value reaches threshold value；
Wherein, comprehensive quantification value=K1* the first quantized value+K2* the second quantized value, K1、K2For preset value, K1+K2=1, and
K1With K2It is all larger than 0.In the present invention, K1/K2∈ [0.4,0.6], the influence to guarantee two quantized values is suitable, in this implementation
In example, K1=0.5, K2=0.5, threshold value=50.
It is that the first quantized value of the invention obtains flow chart with reference to Fig. 2, Fig. 2.Wherein, the monitoring device is always maintained at
Fixed angle carries out image taking；First quantized value show that step specifically includes:
(1) in advance when liquefied ammonia does not leak, the image of manual control monitoring device shooting is obtained, and is stored as standard
Image；
(2) realtime graphic for obtaining monitoring device automatic shooting in real time, realtime graphic and standard picture are made the difference, must be gone on business
It is worth image；
(3) error image is compared with preset A leak of liquefied ammonia status image, judges the similarity of the two；Liquefied ammonia is let out
Image when status image is A leak of liquefied ammonia is leaked, if liquefied ammonia is atomized image, the A leak of liquefied ammonia that can occur before in advance
When image extract；
(4) quantized value is obtained according to the similarity.The first quantized value is such as quantified as 0 to 100, the size of quantized value with
Similarity is equal, and is rounded.
Second quantized value show that step specifically includes:
(1) real-time ammonia concentration value at the storage position that concentration sensor real-time detection arrives is obtained；
(2) it is worth the second quantized value according to real-time ammonia concentration.Real-time ammonia concentration value is bigger, and the second quantized value is got over
Greatly, scalar quantization mode can be used in real-time ammonia concentration value, and the second quantized value is such as divided into 11 numerical value in the present embodiment:
0,10,20,30,40 ..., 100, the corresponding ammonia concentration range of each numerical value, so it can be concluded that the second quantized value.
In one more embodiment of the present invention, positioning device is installed at liquefied ammonia holder, positioning device is also connected to institute
Gateway is stated, location information is sent to remote server, when liquefied ammonia holder leaks, remote server will also be to institute
It states mobile terminal and sends Navigation Control instruction；Positioning letter in the Navigation Control instruction comprising the liquefied ammonia holder leaked
Breath, the mobile terminal are preinstalled with APP, and the APP is used for after receiving the Navigation Control instruction, identify positioning letter
Breath, and gone forward side by side according to the guidance path that the location information identified is established at the mobile terminal to location information corresponding position
Row navigation.There is video switch, for sending video request to remote server when video switch is triggered in the APP
Instruction, remote server set the Image Acquisition at the liquefied ammonia holder leaked after receiving the video request instruction
The video frame sync of standby acquisition is sent to the APP, and to be shown on the APP, Cloud Server passes through movement at this time
The corresponding emergency contact of terminal notification is also possible to remind by the APP in the present embodiment.In this way, in Cloud Server
After notifying corresponding emergency contact by mobile terminal, emergency contact opens the video switch on APP, then can stand
Horse sees the implementation video of leak scene.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (9)
1. it is a kind of for industrial accident hidden danger monitoring liquefied ammonia leakage alarm system, characterized by comprising:
Concentration sensor detects the ammonia concentration at liquefied ammonia holder for being mounted at liquefied ammonia holder；
Image capture device carries out image taking to liquefied ammonia holder for being mounted at liquefied ammonia holder；
Gateway is separately connected each concentration sensor and image capture device；
Remote server connects the gateway, to obtain the concentration data and figure of concentration sensor and image capture device acquisition
As data judge the liquefied ammonia for carrying out integrated treatment to the corresponding concentration data of same liquefied ammonia holder and image data
Whether holder leaks, and when liquefied ammonia holder leaks, according to preset liquefied ammonia holder with it is corresponding urgent
The corresponding relationship of contact person notifies corresponding emergency contact by mobile terminal.
2. alarm system according to claim 1, which is characterized in that it is described notified by mobile terminal it is corresponding urgent
It is that people specifically refers to: sends word message to mobile terminal and notify emergency contact and/or establish the urgent connection of voice conversation notice
It is people.
3. alarm system according to claim 1, which is characterized in that the corresponding concentration data of the same liquefied ammonia holder
And image data carries out integrated treatment, judges whether the liquefied ammonia holder occurs leakage and specifically comprise the following steps:
S31, judge whether the real-time concentration of concentration sensor acquisition is greater than concentration preset value；If so, it is transferred to step S32, it is no
Then assert that liquefied ammonia holder does not leak；
S32, the realtime image data that image capture device acquires is subtracted each other with preset standard image data, obtains difference
Image；The standard picture is the liquefied ammonia storage of the manual control monitoring device shooting of acquisition in advance when liquefied ammonia does not leak
Store the image at bucket；Wherein, described image acquisition equipment is always maintained at fixed angle and carries out image taking；
S33, error image is compared with preset A leak of liquefied ammonia status image, according to the similarity of the two, judges liquefied ammonia
Whether holder leaks；The judgment criteria that liquefied ammonia holder leaks is that the similarity is greater than preset value.
4. alarm system according to claim 1, which is characterized in that the corresponding concentration data of the same liquefied ammonia holder
And image data carries out integrated treatment, judges whether the liquefied ammonia holder occurs leakage and specifically comprise the following steps: to image
The image for acquiring equipment acquisition carries out image analysis, judges a possibility that A leak of liquefied ammonia may occur, and quantified, and obtains the
One quantized value carries out a possibility that A leak of liquefied ammonia may occur for data analytical judgment to the data of concentration sensor acquisition, goes forward side by side
Row quantization, obtains the second quantized value, then judges whether liquefied ammonia leaks according to the first quantized value and the second quantized value, judges
Rule is whether comprehensive quantification value reaches threshold value；
Wherein, comprehensive quantification value=K1* the first quantized value+K2* the second quantized value, K1、K2For preset weight, and K1With K2It is big
In 0.
5. alarm system according to claim 4, which is characterized in that the monitoring device is always maintained at fixed angle progress
Image taking；First quantized value show that step specifically includes:
(1) in advance when liquefied ammonia does not leak, the image of manual control image capture device shooting is obtained, and is stored as standard
Image；
(2) realtime graphic of real-time image acquisition acquisition equipment automatic shooting, realtime graphic and standard picture are made the difference, must be gone on business
It is worth image；
(3) error image is compared with preset A leak of liquefied ammonia status image, judges the similarity of the two；
(4) quantized value is obtained according to the similarity.
6. alarm system according to claim 4, which is characterized in that the second quantized value show that step specifically includes:
(1) real-time ammonia concentration value at the storage position that concentration sensor real-time detection arrives is obtained；
(2) it is worth the second quantized value according to real-time ammonia concentration.
7. alarm system according to claim 4, which is characterized in that K1/K2∈[0.4,0.6]。
8. alarm system according to claim 1, which is characterized in that be equipped with positioning device at liquefied ammonia holder, position
Device is also connected to the gateway, and location information is sent to remote server, when liquefied ammonia holder leaks, remotely
Server will also send Navigation Control instruction to the mobile terminal；Liquefied ammonia in the Navigation Control instruction comprising leaking
The location information of holder；
The mobile terminal is preinstalled with APP, and the APP is used for after receiving the Navigation Control instruction, identifies positioning letter
Breath, and gone forward side by side according to the guidance path that the location information identified is established at the mobile terminal to location information corresponding position
Row navigation.
9. alarm system according to claim 8, which is characterized in that there is video switch, in video in the APP
Switch sends video request instruction when being triggered, to remote server, remote server after receiving the video request instruction,
The video frame sync of image capture device acquisition at the liquefied ammonia holder leaked is sent to the APP, in institute
It states and is shown on APP.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168893.5A CN109215296A (en) | 2018-10-08 | 2018-10-08 | A kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811168893.5A CN109215296A (en) | 2018-10-08 | 2018-10-08 | A kind of liquefied ammonia leakage alarm system for the monitoring of industrial accident hidden danger |
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