CN106128008A - A kind of Spark plug optical fiber sensor system - Google Patents
A kind of Spark plug optical fiber sensor system Download PDFInfo
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- 239000013307 optical fiber Substances 0.000 title abstract 4
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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
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
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- G—PHYSICS
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
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Abstract
The invention discloses a kind of Spark plug optical fiber sensor system, including controller, and spark detector, alarm mechanism and the spray being electrically connected with the controller respectively go out device, described spark detector includes processor chips, and photographic head, solar spectrum sensor, thermal source sensor, Ultraviolet sensor, infrared sensor and the signal output unit electrically connected with processor chips respectively, described controller controls alarm mechanism and spray according to control command and goes out device work.The Spark plug optical fiber sensor system of the present invention is when for Spark plug optical fiber sensor, not only it is provided with the function of anti-sunlight interference, have more the function of infrared heat source interference, greatly improve spark detection precision, also accommodate the working environment of complexity, effectively expanded range of application, can have faster reaction speed while ensureing spark detection precision, Risk Coping Mechanisms is the most diversified, it is adaptable to multi-field commercial production.
Description
Technical Field
The invention relates to the technical field of electronic detection, in particular to a spark detection system.
Background
With the development of the petrochemical industry, the types and application ranges of flammable, explosive and toxic gases are increased, and once the gases leak in the processes of production, transportation and use, poisoning, fire and even explosion accidents can be caused, so that the life and property safety of people is seriously harmed.
Therefore, aiming at the production, storage and transportation safety of industries such as petroleum, chemical engineering, high-dust and the like, how to utilize the spark detector to quickly and effectively detect the occurrence and development of sparks, prevent and control the combustion and explosion caused by the sparks and take emergency measures in time is the primary proposition of the safety production of enterprises and the life guarantee of personnel.
At present, spark detection technologies at home and abroad are not mature enough, a single infrared sensing technology or an ultraviolet sensing technology is generally adopted, the reaction time of sparks is generally longer than 3 milliseconds, the reaction speed is slow, danger alarm delay is easy to occur, or the detection precision is often low, false alarm is generated sometimes, and the efficiency of industrial production is influenced. In addition, the two modes are easily interfered by other factors such as light, heat sources and dust, can only be applied to pipelines or dark environments, have no anti-interference capability on sunlight and infrared heat sources, and are greatly limited in application environments.
Moreover, the existing spark detector can only simply record data such as alarm data, system starting time, times and the like, the reaction time is slow, the system reaction time is generally more than 30ms, and whether the system alarm is a false alarm or not cannot be judged.
Therefore, there is a need in the art for a spark detection system that has a wide application environment, can filter out sunlight and heat source interference, and can ensure the accuracy of received spark detection while increasing the response speed of the system.
Disclosure of Invention
The invention provides a spark detection system, which has the functions of sunlight interference resistance and infrared heat source interference resistance when spark detection is carried out, greatly improves the spark detection precision, can adapt to complex working environment, effectively expands the application range, has higher reaction speed while ensuring the spark detection precision, has more diversified risk processing strategies, and is suitable for industrial production in multiple fields;
spark detecting system includes the controller to and spark detector, alarm mechanism and the device that spouts out that is connected with the controller electricity respectively, the spark detector includes the treater chip, and the camera, sunshine spectrum sensor, heat source sensor, ultraviolet sensor, infrared sensor and the signal output unit that are connected with the treater chip electricity respectively, camera, sunshine spectrum sensor, heat source sensor, ultraviolet sensor, infrared sensor detect signal transmission to treater chip analysis after correcting transmit to controller analysis and processing storage and form control command through signal output unit, the controller controls alarm mechanism and the device work that spouts out according to control command.
Preferably, the processor chip includes a first correction unit, a second correction unit and a processing unit, the processing unit is used for receiving, forwarding and processing signals and is preset with a spectrum correction formula, the first correction unit corrects a preset standard full-waveband sunlight spectrum by calling the spectrum correction formula preset in the processing unit, and generates a previous full-waveband sunlight spectrum curve; and the second correction unit corrects the previous full-waveband sunlight spectrum curve by calling a spectrum correction formula preset in the processing unit to generate a current full-waveband sunlight spectrum curve which is used as a correction signal processed by the processor chip at the current moment.
Preferably, the system further comprises:
and the recording unit acquires a correction signal obtained after correction by the processing unit in real time and generates an energy value curve based on the spark radiant energy value and time according to the correction signal.
Preferably, the second correction unit includes:
the infrared heat source comparison module is used for comparing the infrared radiation signal measured by the infrared sensor with a preset infrared heat source database;
and the second correction module is used for performing second correction on the previous full-waveband sunlight spectrum curve through a preset spectrum correction formula to generate the current full-waveband sunlight spectrum curve when judging that the infrared radiation signal is generated by the heat source body based on the comparison result.
Preferably, the controller still including be used for the power module of each module power supply, and with signal reception module, signal separator, signal response unit, signal processing unit, the control unit and the signal output module that power module connects respectively, the spark signal that signal reception module received is transmitted to signal output module through first signal branch road and second signal branch road, signal response unit sets up on first signal branch road, second signal branch road is the series connection electricity in proper order and is connected with signal processing unit and control unit, the control unit still is equipped with the spark ignition database, the control command of controller passes through signal output module and transmits alarm mechanism and blowout device. Wherein,
the signal receiving module is used for receiving the spark signals sent by the signal output unit and forwarding the spark signals to the signal separator;
the signal processing unit is used for receiving the spark signals separated and processed by the signal separator, processing, displaying and storing the spark signals and then transmitting the spark signals to the control unit;
the signal response unit is used for receiving the other path of spark signal separated and processed by the signal separator, sending a group of confirmation signals to the spark detector, and sending the spark signal to the signal output module after receiving the confirmation signals fed back by the spark detector;
the control unit is used for calling spark ignition database data and the correction signals processed by the processor chip according to preset risk rules and processing strategies to judge whether risks exist in a detection site or not, and processing the risks based on the preset processing strategies when the risks exist and generating corresponding control signals.
Preferably, the signal processing unit is further respectively connected with a display module and a Flash memory, the display module is used for displaying the spark energy value and the working state of the spark detector, the working state comprises three types of normal state, alarm state or fault state, the energy value of the spark is displayed in an energy column form, and the Flash memory is used for storing or retrieving the alarm energy value, the alarm spectrum curve, the video information and the time parameter 15s before and after alarm.
Preferably, the control unit includes:
the data storage module is used for storing or calling the risk rule and the processing strategy;
the signal judgment module is used for calling the risk rule, carrying out risk judgment on the radiation correction signal based on the risk rule and sending processing information to the signal processing module when the risk exists;
and the signal processing module is used for calling the processing strategy, processing the processing information based on the processing strategy, generating a control signal after processing and sending the alarm mechanism and the spraying device by the signal output module.
Preferably, the signal output module is connected with the alarm mechanism and the spray-extinguishing device through signal interfaces, and the signal interfaces are one or more of RS232 interfaces, RS485 interfaces, 4-20mA interfaces and relay interfaces.
Preferably, the sunlight spectrum sensor has 5, ultraviolet sensor is the ultraviolet sensor of 0.2um wavelength, infrared sensor is the infrared sensor of 2.7um wavelength, the infrared sensor of 4.3um wavelength, the infrared sensor of 3.9um wavelength or the infrared sensor of 4.7um wavelength.
Therefore, by applying the technical scheme of the invention, when the spark detection is carried out, the spark detection device has the functions of sunlight interference resistance and infrared heat source interference resistance, greatly improves the spark detection precision, can adapt to complex working environment, effectively expands the application range, can ensure the spark detection precision, has higher reaction speed, has more diversified risk processing strategies, and is suitable for industrial production in multiple fields.
Drawings
FIG. 1 is a block diagram of a spark detection system according to the present application;
FIG. 2 is a block diagram of a processor chip of a spark detection system according to the present application;
fig. 3 is a block diagram of a controller of a spark detection system according to the present application.
Detailed Description
In view of the problems in the prior art, the invention provides a spark detection system, which has the functions of sunlight interference resistance and infrared heat source interference resistance when spark detection is performed, greatly improves the spark detection precision, can adapt to complex working environment, effectively expands the application range, has higher reaction speed while ensuring the spark detection precision, has more diversified risk processing strategies and is suitable for industrial production in multiple fields.
In order to further illustrate the technical idea of the present invention, the technical solution of the present invention will now be described with reference to specific application scenarios.
As shown in fig. 1, the spark detection system of the present application includes a controller 1, and a spark detector 2, an alarm mechanism 3 and an extinguishing device 4 electrically connected to the controller 1, respectively, the spark detector 2 includes a processor chip 21, and a camera 22, a solar spectrum sensor 23, a heat source sensor 24, an ultraviolet sensor 25, an infrared sensor 26 and a signal output unit 27 electrically connected to the processor chip 21, respectively, signals detected by the camera 22, the solar spectrum sensor 23, the heat source sensor 24, the ultraviolet sensor 25 and the infrared sensor 26 are transmitted to the controller 1 through the signal output unit 27 after being analyzed and corrected by the processor chip 21, and are analyzed, processed, stored and form a control command, and the controller 1 controls the alarm mechanism 3 and the extinguishing device 4 to work according to the control command.
In specific application scenario, solar spectrum sensor 23 has 5, ultraviolet sensor 25 is the ultraviolet sensor of 0.2um wavelength, infrared sensor 26 is the infrared sensor of 2.7um wavelength, the infrared sensor of 4.3um wavelength, the infrared sensor of 3.9um wavelength or the infrared sensor of 4.7um wavelength.
It should be noted that: since the spark detection technology is developed and applied based on the optical sensor technology, so-called interference sources are mainly various light, and the heat source radiates interference. The method mainly comprises sunlight source interference, heat source body radiation interference and interference of other light sources. The spark detection requirement is more sensitive, faster and more accurate, and the interference of various light sources and radiation sources is difficult to completely and effectively filter, which is the main reason that the existing spark detection instrument cannot be used in relatively complex environment, even outdoors. Therefore, the instrument is provided with a sunlight full-wave band optical sensor, a heat source body infrared radiation database as far as possible is established, and a simple and efficient data model and algorithm are matched, so that the stable operation of the spark detection instrument in a complex environment is possible.
Specifically, the instrument is immune to sunlight, namely false alarm caused by sunlight is avoided, so that the application environment of the spark detector is greatly improved. Install 5 sunshine spectral sensor in spark detector, adopt 5 sunshine spectral sensor can cooperate and generate sunshine full wave band spectrum, the function is comprehensive powerful, gathers ambient light in real time and changes, contrast procedure built-in sunshine spectral data, filtering sunshine light interference has guaranteed the precision of surveying slight spark.
When the spark detector has the sunlight immunity function and is used in an open environment, the spark detector can be influenced by infrared rays radiated by an infrared heat source body, such as a human body or an automobile engine. After the infrared heat source sensor is installed on the spark detector, the change of the infrared heat source in a preset area is collected in real time, the built-in spectrum base line of a program is compared, the interference of a heat source body is filtered, and the precision of detecting fine sparks is guaranteed.
In a specific application scenario, as shown in fig. 2, the processor chip 21 includes a first correction unit 211, a second correction unit 212, and a processing unit 213, where the processing unit 213 is configured to receive, forward, and process a signal and preset a spectrum correction formula, and the first correction unit 211 corrects a preset standard full-waveband sunlight spectrum by calling the spectrum correction formula preset in the processing unit 213 to generate a previous full-waveband sunlight spectrum curve; the second correcting unit 212 corrects the previous full-band spectrum curve of the sunlight by calling a spectrum correction formula preset in the processing unit 213, and generates a current full-band spectrum curve of the sunlight as a correction signal processed by the processor chip 21 at the current moment.
It should be noted that the preset correction formula of the present application specifically includes:
a) synthesizing the previous sunlight radiation curve and the current sunlight radiation curve by the following formula:
A(z,t)＝2acos(kmz-ωmt)
order to
Then, in the time domain, the time required for the phase change:
in the spatial domain, the distance traveled by the phase change:
b) the phenomenon that the intensity of a composite light wave formed by light with the same amplitude, vibration and propagation direction changes with position and time when two frequencies are close to each other:
then, the light intensity I is:
I＝A2＝4a2cos2(kmz-ωmt)＝2a2[1+cos2(kmz-ωmt)])；
frequency of light intensity change:
2ωm＝ω1-ω2；
c) when the time at is small,therefore, the temperature of the molten metal is controlled,
therefore, the group refractive index:vg＜v
then, normal dispersion:vg＜v；
anomalous dispersion:vg＞v；
vacuum and dispersion-free media:vg＝v。
the above correction formula is only a preferred embodiment of the present invention, and other correction steps and formulas may be used to achieve the above purpose, without limiting the scope of the present application.
In a specific application scenario, the system further includes:
and the recording unit 214 is used for acquiring the correction signal obtained after the correction of the processing unit 213 in real time, and generating an energy value curve based on the spark emission energy value and the time according to the correction signal.
In a specific application scenario, the second correction unit 212 includes:
the infrared heat source comparison module 2121 is configured to compare the infrared radiation signal measured by the infrared sensor 26 with a preset infrared heat source database;
and the second correction module 2122 is used for performing second correction on the previous full-waveband sunlight spectrum curve through a preset spectrum correction formula to generate a current full-waveband sunlight spectrum curve when the infrared radiation signal is judged to be generated by the heat source body based on the comparison result.
It should be noted that, in general, a large amount of ultraviolet radiation is generated in the initial stage of spark generation, and as the spark progresses, the infrared radiation is increased, while the ultraviolet radiation is relatively weak. Ultraviolet light waves are light longer than visible light waves. The human eye cannot see the uv light, which detects fire alarms, in the wavelength range from 185 nm to 260 nm (0.185 to 0.260 μm). The detection wavelength range of the spark detector, which utilizes a 185 to 0.260 micron portion of the near-frequency ultraviolet spectrum, is approximately 0.12 to 3 microns. The detector may sense 80% of the blackbody energy radiation released by the spark combustion. The detector measures the energy radiation, which is generated by the combustion and propagates at the speed of light. In summary, the ultraviolet detection means can detect the spark more quickly and accurately in the initial stage of the spark generation than the infrared detection means, and thus, the ultraviolet detection means can provide time for further confirmation and prevention of the explosion. And the wavelength of infrared light for detecting a fire alarm ranges from 700 nm to 7000 nm (0.7 to 7.0 μm). The spark detector utilizes a 0.7 to 1.1 micron portion of the near frequency infrared spectrum and a 1.1 to 7.0 micron portion of the broadband infrared spectrum. The detector also uses an additional spectral region, the visible spectrum from 400 nm to 700 nm (0.4 to 0.7 microns), which is used to correct the generation of false non-fire alarms. The detector is also capable of sensing a specific broad band 4.3 infrared, "three infrared" region, with wavelengths ranging from about 3 to 5 microns. When the ultraviolet detection means judges the generation of sparks, the infrared optical sensor further confirms the generation of sparks and further measures the spark energy, so that the qualitative and quantitative determination of sparks is achieved, and then the functions of outputting an alarm and the like are determined through system presetting.
The ultraviolet sensor measures ultraviolet radiation energy at the initial stage of spark generation to judge whether spark occurs, and the infrared sensor receives and records infrared energy fluctuation in the spark generation and development process. The infrared sensor has slow response time, generally, the response time to sparks is more than 3 milliseconds, so that dangerous alarm delay is easy to occur, and immeasurable loss is caused. Compared with an infrared detection means, the ultraviolet sensing technology is quicker in time response, the reaction time can even reach the nanosecond level, the spark signal can be detected at the initial stage of spark generation for alarming and processing, but the detection precision is lower, the false alarm is generated sometimes, and the efficiency of industrial production is influenced. Therefore, the spark detection is carried out in a mode of combining the infrared sensor and the ultraviolet sensor.
The sunlight spectrum data is generated by a sunlight spectrum sensor in real time, and the correction process specifically includes filtering out a sunlight radiation signal in the radiation signal based on a sunlight spectrum baseline after the sunlight spectrum baseline in the sunlight spectrum data is acquired, so that a radiation correction signal is generated.
In a specific application scenario, as shown in fig. 3, the controller 1 of the present application further includes a power supply module (not shown in the figure) for supplying power to each module, and a signal receiving module 12, a signal splitter 13, a signal responding unit 14, a signal processing unit 15, a control unit 16 and a signal output module 17 which are respectively connected to the power supply module, a spark signal received by the signal receiving module 12 is transmitted to the signal output module 17 through a first signal branch and a second signal branch, the signal responding unit 14 is disposed on the first signal branch, the second signal branch is sequentially connected in series and electrically connected to the signal processing unit 15 and the control unit 16, the control unit 16 is further provided with a spark ignition database, and a control command of the controller 1 is transmitted to the alarm mechanism 3 and the blowout device 4 through the signal output module 17. Wherein,
the signal receiving module 12 is configured to receive the spark signal sent by the signal output unit, and forward the spark signal to the signal separator 13;
the signal processing unit 15 is used for receiving the spark signal separated and processed by the signal separator 13, processing, displaying and storing the spark signal, and transmitting the spark signal to the control unit 16;
the signal response unit 14 is configured to receive another path of spark signal of the signal splitter separation processing 13, send a group of confirmation signals to the spark detector 2, and send the spark signal to the signal output module 17 after receiving the confirmation signal fed back by the spark detector 2;
the control unit 16 is configured to retrieve the data of the spark ignition database and the correction signal processed by the processor chip 21 according to preset risk rules and processing strategies to determine whether a risk exists in the field, and process the risk based on the preset processing strategy and generate a corresponding control signal when the risk exists.
In a specific application scenario, the signal processing unit 15 is further connected with a display module 151 and a Flash memory 152 respectively, the display module 151 is used for displaying a spark energy value and a working state of the spark detector 2, the working state includes three types of normal state, alarm state or fault state, the energy value of the spark is displayed in an energy column form, and the Flash memory 152 is used for storing or retrieving the alarm energy value, the alarm spectrum curve, the video information and the time parameter 15s before and after the alarm.
It should be noted that the camera 22 is a high-definition camera, and is used for recording the spark generation and development process in real time. The camera 22 can set 2 states of 24-hour work or alarm work, and the rear end stores an image file 15s before and after spark generation and the alarm function is started.
In a specific application scenario, the control unit 16 includes:
a data storage module 161, configured to store or retrieve the risk rule and the processing policy;
the signal judgment module 162 is configured to invoke the risk rule, perform risk judgment on the radiation correction signal based on the risk rule, and send processing information to the signal processing module when a risk exists;
and the signal processing module 163 is used for calling the processing strategy, processing the processing information based on the processing strategy, generating a control signal after processing, and sending the alarm mechanism and the spraying device by the signal output module.
The risk judgment is carried out in the following manner in the embodiment of the application:
a) obtaining a corresponding energy correction value according to the radiation correction signal;
b) determining whether the energy correction value is greater than a risk threshold of the risk rule;
c) and if so, judging that the risk exists in the preset area.
Specifically, in use, the risk threshold of the combustible substance may be selected by the ignition energy database, or manually input after measuring the corresponding ignition energy data by the related measuring device if the ignition energy data corresponding to the combustible substance is absent from the database.
In the embodiment of the application, different processing strategies need to be selected based on the production environments with different risk levels, so that the optimal spark detection and processing effect can be achieved. This application has set up three kinds of processing strategies and has adapted to multiple production environment, specifically as follows:
1) setting a first danger level, starting a highest-level alarm when an ultraviolet signal is found, starting automatic spraying equipment at the same time, and measuring infrared recording frequency through an infrared sensor;
2) setting a second danger level, starting a pre-alarm when an ultraviolet signal is found, not starting automatic spraying equipment at the moment, and starting the automatic spraying equipment after the infrared signal is confirmed;
3) and setting a third danger level, namely setting that the ultraviolet signal is found not to start a pre-alarm and not to start the automatic spraying equipment, and starting the automatic spraying equipment after the infrared signal is confirmed.
Therefore, the embodiment of the present application discloses the following processing steps:
a) when the processing strategy is in a first grade, simultaneously outputting an alarm signal and a fire-fighting execution signal;
b) when the processing strategy is in a second grade, only outputting an alarm signal if the risk is judged by taking the ultraviolet radiation signal as a basis, and simultaneously outputting the alarm signal and a fire-fighting execution signal if the risk is judged by taking the infrared radiation signal as a basis;
c) and when the processing strategy is in a third grade, if the risk is judged by taking the ultraviolet radiation signal as a basis, not outputting an alarm signal and a fire-fighting execution signal, and if the risk is judged by taking the infrared radiation signal as a basis, simultaneously outputting the alarm signal and the fire-fighting execution signal.
In a specific application scenario, the signal output module 17 is connected with the alarm mechanism 3 and the extinguishing device 4 through signal interfaces, and the signal interfaces are one or more of an RS232 interface, an RS485 interface, a 4-20mA interface and a relay interface.
Specifically, the digital noise reduction and signal separation technology is adopted in the product, the response speed of the system is improved, the display precision is improved, and meanwhile the accuracy of the received signal is guaranteed.
After receiving the signals of the spark detector, a receiving module of the controller divides the signals into 2 independent groups of same signals through a signal separation module;
a first set of signals: the aim is to ensure the working time of the system, namely the detection of sparks till the system starts spraying until the extinguishment of sparks, and the whole working time is less than 30 nSec. After the signal is detected by an ultraviolet sensor in the spark detector, the signal is put into a signal output module after being sorted, and the whole alarm function can be completely realized, including starting a spraying system, starting a valve closing system (if any), and starting an acousto-optic alarm system. Meanwhile, in order to ensure the accuracy of the signals and prevent the signals from being judged by mistake, a signal response unit is arranged in the signal system, when the controller receives an alarm starting signal sent by the spark detector, a group of confirmation signals are sent to the spark detector, and only when the spark detector feeds back the confirmation signals, the controller starts a signal output function;
a second set of signals: the set of signals is used for system analysis and recording. After the signal is processed and analyzed by the signal processing unit, the energy value is roughly displayed at the controller end in an energy column mode due to the limitation of display frequency, and complete digital records and image files are stored in the flash memory for output and retrieval. The alarm output condition of the group of signals is set according to the magnitude of the spark energy, and the alarm signal can be output only when the spark detector detects that the spark occurs and the energy of the spark reaches the set value. The setting of the spark alarm energy sets a general early warning signal and an alarm signal depending on 50% or 80% of the ignition energy of the combustible gas or dust. The system is provided with a minimum ignition energy database of combustible gas or dust, for example as follows:
1 standard atmospheric pressure at 20 ℃:
the minimum ignition energy of the hydrocarbon fuel is about 9.0mJ
About 3.0mJ of methane
About 2.5mJ of toluene
About 0.12mJ of acetylene and hydrogen
The layered asphalt powder has a thickness of about 2-4 mJ
Outputting an alarm signal: the first group of signal alarm outputs, namely the spark is found and the alarm is given immediately; the second group of signals output, namely spark is found, and early warning and alarming signals are output when 50% and 80% of the lowest ignition energy is reached; wherein, the first group of signals is limited by the second group of signals, namely, the spark is found to immediately output an alarm signal, and then the early warning and alarm signals are output when the verification of the second group of signals reaches 50 percent or 80 percent of the lowest ignition energy, wherein, the preset threshold values of 50 percent or 80 percent of the lowest ignition energy can be set with different values according to different specific environments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by hardware, or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present invention.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above-mentioned invention numbers are merely for description and do not represent the merits of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present invention, however, the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (9)
1. The utility model provides a spark detecting system, the system includes the controller to and spark detector, alarm mechanism and the device that spouts out that are connected with the controller electricity respectively, its characterized in that, the spark detector includes the treater chip, and the camera, sunshine spectrum sensor, heat source sensor, ultraviolet sensor, infrared sensor and the signal output unit that are connected with the treater chip electricity respectively, the signal transmission that camera, sunshine spectrum sensor, heat source sensor, ultraviolet sensor, infrared sensor detected transmits to the treater chip analysis and corrects the back and forms control command to controller analysis processing storage through the signal output unit, the controller is according to control command control alarm mechanism and the work of the device that spouts out.
2. The spark detection system according to claim 1, wherein the processor chip comprises a first correction unit, a second correction unit and a processing unit, the processing unit is used for receiving, forwarding and processing signals and is preset with a spectrum correction formula, and the first correction unit corrects the preset standard full-wave-band spectrum of sunlight by calling the spectrum correction formula preset in the processing unit to generate a previous full-wave-band spectrum curve of sunlight; and the second correction unit corrects the previous full-waveband sunlight spectrum curve by calling a spectrum correction formula preset in the processing unit to generate a current full-waveband sunlight spectrum curve which is used as a correction signal processed by the processor chip at the current moment.
3. The spark detection system of claim 2 wherein said system further comprises:
and the recording unit acquires a correction signal obtained after correction by the processing unit in real time and generates an energy value curve based on the spark radiant energy value and time according to the correction signal.
4. The spark detection system of claim 2 wherein said second correction unit includes:
the infrared heat source comparison module is used for comparing the infrared radiation signal measured by the infrared sensor with a preset infrared heat source database;
and the second correction module is used for performing second correction on the previous full-waveband sunlight spectrum curve through a preset spectrum correction formula to generate the current full-waveband sunlight spectrum curve when judging that the infrared radiation signal is generated by the heat source body based on the comparison result.
5. The spark detection system according to claim 2, wherein the controller further comprises a power supply module for supplying power to each module, and a signal receiving module, a signal separator, a signal response unit, a signal processing unit, a control unit and a signal output module which are respectively connected with the power supply module, the spark signal received by the signal receiving module is transmitted to the signal output module through a first signal branch and a second signal branch, the signal response unit is arranged on the first signal branch, the second signal branch is sequentially and electrically connected with the signal processing unit and the control unit in series, the control unit is further provided with a spark ignition database, and a control command of the controller is transmitted to the alarm mechanism and the blowout device through the signal output module. Wherein,
the signal receiving module is used for receiving the spark signals sent by the signal output unit and forwarding the spark signals to the signal separator;
the signal processing unit is used for receiving the spark signals separated and processed by the signal separator, processing, displaying and storing the spark signals and then transmitting the spark signals to the control unit;
the signal response unit is used for receiving the other path of spark signal separated and processed by the signal separator, sending a group of confirmation signals to the spark detector, and sending the spark signal to the signal output module after receiving the confirmation signals fed back by the spark detector;
the control unit is used for calling spark ignition database data and the correction signals processed by the processor chip according to preset risk rules and processing strategies to judge whether risks exist in a detection site or not, and processing the risks based on the preset processing strategies when the risks exist and generating corresponding control signals.
6. The spark detection system of claim 5 wherein: the signal processing unit is also respectively connected with a display module and a Flash memory, the display module is used for displaying the spark energy value and the working state of the spark detector, the working state comprises three types of normal state, alarm state or fault state, the energy value of the spark is displayed in an energy column form, and the Flash memory is used for storing or retrieving the alarm energy value, the alarm spectrum curve, the video information and the time parameter 15s before and after the alarm.
7. The spark detection system of claim 5 wherein said control unit includes:
the data storage module is used for storing or calling the risk rule and the processing strategy;
the signal judgment module is used for calling the risk rule, carrying out risk judgment on the radiation correction signal based on the risk rule and sending processing information to the signal processing module when the risk exists;
and the signal processing module is used for calling the processing strategy, processing the processing information based on the processing strategy, generating a control signal after processing and sending the alarm mechanism and the spraying device by the signal output module.
8. The spark detection system of claim 7 wherein said signal output module is connected to said alarm mechanism and said blowout device via signal interfaces, said signal interfaces being one or more of RS232 interface, RS485 interface, 4-20mA interface and relay interface.
9. The immune system of infrared heat source of claim 1, wherein there are 5 solar spectrum sensors, the ultraviolet sensor is a 0.2um wavelength ultraviolet sensor, and the infrared sensor is a 2.7um wavelength infrared sensor, a 4.3um wavelength infrared sensor, a 3.9um wavelength infrared sensor, or a 4.7um wavelength infrared sensor.
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| CN201610511789.6A CN106128008B (en) | 2016-06-30 | 2016-06-30 | A kind of Spark plug optical fiber sensor system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017181332A (en) * | 2016-03-31 | 2017-10-05 | 株式会社Ｓｕｂａｒｕ | Light observation system and light observation method |
| CN108957573A (en) * | 2017-05-19 | 2018-12-07 | 丁语欣 | Danger source detection device and method |
| CN109141648A (en) * | 2018-08-22 | 2019-01-04 | 王永福 | The spark detector of immune electric spark |
| CN109758702A (en) * | 2019-01-22 | 2019-05-17 | 北京中山消防保安技术有限公司 | Fire-fighting linkage control system |
| CN114137368A (en) * | 2021-11-16 | 2022-03-04 | 国网冀北电力有限公司检修分公司 | Spark gap detector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2766672A1 (en) * | 2009-06-24 | 2010-12-29 | Polaris Sensor Technologies, Inc. | Apparatus for flame discrimination utilizing long wavelength pass filters and related method |
| CN102034329A (en) * | 2010-12-29 | 2011-04-27 | 上海大学 | Infrared fire detection method based on multiband and multi-feature |
| CN102426753A (en) * | 2011-11-21 | 2012-04-25 | 上海大学 | Infrared multiparameter fire and gas detector |
| CN103761528A (en) * | 2013-12-20 | 2014-04-30 | 合肥科大立安安全技术股份有限公司 | Flame identification method based on ultraviolet photoelectric tube |
| CN104199117A (en) * | 2014-08-20 | 2014-12-10 | 湖北捷讯光电有限公司 | Infrared ultraviolet composite flame detector and detection method thereof |
| CN204242337U (en) * | 2014-11-14 | 2015-04-01 | 陕西电器研究所 | Intelligent flame sensor |
| CN104833632A (en) * | 2015-04-07 | 2015-08-12 | 陈永奇 | High speed spark detector |
-
2016
- 2016-06-30 CN CN201610511789.6A patent/CN106128008B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2766672A1 (en) * | 2009-06-24 | 2010-12-29 | Polaris Sensor Technologies, Inc. | Apparatus for flame discrimination utilizing long wavelength pass filters and related method |
| CN102034329A (en) * | 2010-12-29 | 2011-04-27 | 上海大学 | Infrared fire detection method based on multiband and multi-feature |
| CN102426753A (en) * | 2011-11-21 | 2012-04-25 | 上海大学 | Infrared multiparameter fire and gas detector |
| CN103761528A (en) * | 2013-12-20 | 2014-04-30 | 合肥科大立安安全技术股份有限公司 | Flame identification method based on ultraviolet photoelectric tube |
| CN104199117A (en) * | 2014-08-20 | 2014-12-10 | 湖北捷讯光电有限公司 | Infrared ultraviolet composite flame detector and detection method thereof |
| CN204242337U (en) * | 2014-11-14 | 2015-04-01 | 陕西电器研究所 | Intelligent flame sensor |
| CN104833632A (en) * | 2015-04-07 | 2015-08-12 | 陈永奇 | High speed spark detector |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017181332A (en) * | 2016-03-31 | 2017-10-05 | 株式会社Ｓｕｂａｒｕ | Light observation system and light observation method |
| CN108957573A (en) * | 2017-05-19 | 2018-12-07 | 丁语欣 | Danger source detection device and method |
| CN108957573B (en) * | 2017-05-19 | 2024-04-02 | 北京英特威视科技有限公司 | Dangerous source detection device and method |
| CN109141648A (en) * | 2018-08-22 | 2019-01-04 | 王永福 | The spark detector of immune electric spark |
| CN109758702A (en) * | 2019-01-22 | 2019-05-17 | 北京中山消防保安技术有限公司 | Fire-fighting linkage control system |
| CN114137368A (en) * | 2021-11-16 | 2022-03-04 | 国网冀北电力有限公司检修分公司 | Spark gap detector |
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