KR101022267B1 - System for monitoring odor - Google Patents

Abstract

The present invention measures the information on the sampled air inhaled for the purpose of providing an objective and quantitative odor measuring means by reacting similarly to the smell sensor and the electrical value of the smell sensor. A preprocessing unit to correct the sample air based on the measured information; A control unit connected to the preprocessing unit and controlling a correction amount of the sample air based on the measured information about the sample air; An odor sensor unit measuring an odor of the corrected sample air; It provides a odor monitoring system, characterized in that it comprises a odor analysis unit for calculating the odor index by signal processing the value measured by the odor sensor unit.

Description

Odor Monitoring System {SYSTEM FOR MONITORING ODOR}

The present invention relates to a odor monitoring system equipped with an odor sensor that inhales the air containing the odor and converts it into an electrical value (value). The present invention relates to a real-time odor monitoring system using an odor sensor by analyzing electrical values of an odor sensor and having objective and quantitative means.

Odor good and bad and the intensity of odor have been evaluated differently according to the subjective feeling of human and sense of smell, but mechanical odor measuring device in odor measurement by the development of odor sensor and semiconductor technology It is being replaced by.

However, odor measuring devices equipped with such odor sensors still show significant differences from sensory measurement by smell, which means that the method and means for analyzing and analyzing the numerical values indicated by odor sensors are not established, rather than the accuracy of odor sensors. More and more, it is a serious threat to the reliability of odor measurement and management.

Therefore, objective and quantitative odor measuring means and odor management and monitoring system having such means are emerging as an urgent problem. In addition, due to the characteristics of the complex odor, it is not only a lot of data is required to release the odor causing substances and concentration by analyzing it, but also there is a problem that it is not easy to manage the odor changing by time and season as well as by the odor generating process.

In view of the above problems, the present invention aims to provide an objective and odor measuring means by reacting similarly to the smell recognition condition and analyzing the electrical value of the smell sensor.

In addition, an object of the present invention is to enable a quantitative analysis of malodors.

In order to achieve the above object, the present invention is to correct the odor sensor in the state that the odor sensor can react similar to the olfactory recognition conditions to detect the sensory recognition result similar to the smell sensor by the smell To provide.

In addition, in order to achieve the above object, the present invention relates to a real-time odor monitoring system having a malodor index, calibration curve and odor fingerprint, odor causing substances and concentration extraction means.

Specifically, the present invention dilutes the inhaled odor with odorless air, converts the intensity of the inhaled odor (raw odor) into an odor index according to the dilution ratio of the odorless air, and the electrical value of the odor index and the odor sensor. Calculate the calibration curve according to the correlation, set the odor emission allowance standard by the calculated calibration curve, and n-dimensional by using the electrical values detected through the n odor sensors that can detect the smell of different characteristics Derivation of odor fingerprints, using the s standard calibration curves to extract the cause and concentration of the odor causing substances, it can be traced to the source of odor.

More specifically, in order to achieve the above object, the present invention comprises a pre-processing unit for measuring information on the sampled air sucked, and correcting the sample air based on the measured information; A control unit connected to the preprocessing unit and controlling a correction amount of the sample air based on the measured information about the sample air; An odor sensor unit measuring an odor of the corrected sample air; It provides a odor monitoring system, characterized in that it comprises a odor analysis unit for calculating the odor index by signal processing the value measured by the odor sensor unit.

The pretreatment unit and a temperature sensor unit for measuring the temperature of the sucked sample air; It may include a humidity sensor unit for measuring the humidity of the inhaled sample air.

The pretreatment unit may further include an odorless supply unit for adding odorless air to the sucked sample air; A temperature corrector for raising or lowering the temperature of the sucked sample air; The apparatus may further include a humidity compensator for increasing or decreasing the humidity of the sampled air.

The controller may include a controller for controlling the pump for sucking the sample air and controlling a correction amount of the sample air based on the measured information about the sample air; It may include a control state display unit for displaying the state of the control.

Preferably, the odor analysis unit and a numerical converter for converting the numerical value measured by the odor sensor unit to digital; A odor calculator configured to calculate a odor index through the digitally converted value; It may include a storage unit for storing the calculated odor index.

The odor monitoring system is connected to the odor analysis unit, a data output unit for displaying the calculated odor index; The odor analysis unit may further include a two-way communication unit configured to transmit the calculated odor index to the outside.

The odor analysis unit calculates a calibration curve according to the correlation with the electrical value of the odor sensor unit, calculates the odor emission acceptance criteria using the calibration curve, and then the value measured by the odor sensor unit is the odor emission. It may be determined whether the acceptance criteria are exceeded.

On the other hand, in order to achieve the above object, the present invention comprises a pre-processing unit for measuring information on the sampled air sucked, and correcting the sample air based on the measured information; A control unit connected to the preprocessing unit and controlling a correction amount of the sample air based on the measured information about the sample air; An odor sensor unit having a plurality of sensors for measuring odor with respect to the corrected sample air; Obtaining standard calibration curves corresponding to the number of sensors of the odor sensor unit, and processing the value measured by the odor sensor unit using the standard calibration curve, to identify the odor causing substance, and includes a odor analysis unit for extracting the concentration It provides a odor monitoring system characterized in that.

In addition, in order to achieve the above object, a pre-processing unit for measuring the information on the sampled air sucked, and correcting the sample air based on the measured information; A control unit connected to the pretreatment unit and controlling a correction amount of the sample air based on the measured information about the sample air; An odor sensor unit measuring an odor of the corrected sample air; After calculating the calibration curve according to the correlation with the electrical value of the odor sensor unit, calculating the odor emission allowance standard using the calibration curve, whether the value measured by the odor sensor unit exceeds the odor emission allowance standard Odor analysis unit to determine; When the value measured by the odor sensor unit is confirmed by the odor analysis unit exceeds the odor emission allowance standard, it provides a odor monitoring system, characterized in that it comprises a odor alarm for generating an alarm.

According to the present invention, it is possible to secure the reliability of odor measurement, to provide accurate and odor management by providing objective and quantitative odor management means, and to quickly process odor information according to real-time odor monitoring to prevent odor diffusion, etc. Various applications and developments may be possible.

Hereinafter, with reference to the accompanying drawings an embodiment according to the present invention will be described in detail.

1 is a schematic configuration diagram of a odor monitoring system according to the present invention.

As can be seen with reference to Figure 1, the odor monitoring system according to the present invention is characterized in that it comprises a pre-treatment for correcting the odor sample state so that the odor sensor can react similarly to the olfactory recognition conditions. Specifically, it is as follows.

As shown in FIG. 1, the odor monitoring system includes an odor inlet 110, a pretreatment 200, a controller 300, a pump 400, an odor sensor 500, and an odor analyzer 600. , Odor alarm and collection unit 700, weather measurement unit 800, data output unit 900, and two-way communication unit (1000).

The pump 400 sucks sample air through the odor inlet 110 under the control of the controller 300. The sucked sample air flows through the conduit as shown and then is discharged.

The pretreatment unit 200 corrects the aspirated sample air so that the odor sensor unit 500 may react similarly to the olfactory perception condition under the control of the control unit 300.

The odor sensor unit 500 measures the odor intensity of the corrected sample air.

The odor analyzer 600 receives an electrical signal corresponding to the measured odor intensity from the odor sensor unit 500, calculates a odor index as described below through the electrical signal, and calculates the odor index. Obtain the calibration curve through, and calculate the odor fingerprint and the like through the calibration curve.

The odor alarm and collecting unit 700 generates an alarm when the odor index calculated by the odor analyzer 600 exceeds the odor emission standard, and generates the alarm and exceeds the odor emission standard. Collect the sample.

The meteorological measurement unit 800 measures the weather and outputs the malodor analysis unit 600. In this case, the meteorological measurement unit 800 may measure the gas phase when it is determined by the malodor analysis unit 600 that the calculated malodor index exceeds the odor emission standard.

The data output unit 900 is connected to the odor analysis unit 600 and outputs data such as the odor index, the calibration curve, the odor fingerprint, and the like. The data output unit 900 includes a liquid crystal diode (LCD), an OLED, and a PDP.

The bidirectional communication unit 1000 supports infrared communication, or communication based on Bluetooth ™, wireless USB, Zigbee, UWB (Ultra Wideband), RFID, and IEEE 802 standards for data exchange with the outside.

The operation of the odor monitoring system as described above is as follows.

When the pump 400 operates according to the signal of the controller 300, sample air is introduced into the pretreatment unit 200 through the odor inlet 100, and the introduced sample air is supplied to the pretreatment unit 200. By adjusting the temperature, humidity, dilution ratio set at the time of initial operation or during operation as needed, and reaches the odor sensor unit 500. The sample air reaching the odor sensor unit 500 changes the electrical signal value of the odor sensor unit 500 according to the substance and concentration, and the odor sensor unit 500 changes the electric signal value. The odor analysis unit 600 is transmitted. The odor analysis unit 600 analyzes the electrical signal value to calculate a odor index, calibration curve, odor fingerprint, and the like, and stores the calculation result. And, if it is confirmed that the odor analysis unit 600 exceeds the odor emission standard, the odor analysis unit 600 transmits the calculation result to the odor alarm and collecting unit 700, the odor alarm and collecting unit The 700 causes an alarm to be generated and at the same time to collect the sample air above the odor emission standard. In addition, the odor analysis unit 600 controls the weather measurement unit 800 to measure the weather at that time, and after receiving the information on the measured weather from the weather measurement unit 800, the Measured weather information is stored after signal processing. At this time, when it is determined that the calculated malodor index exceeds the malodor emission standard, the malodor analyzer 600 may control the meteorological measurement unit 800 to measure the gas phase.

The odor analysis unit 600 displays the stored calculation result through the data output unit 900 or transmits the stored calculation result to an external control device such as a workstation or a computer through the bidirectional communication unit 100.

Hereinafter, such an odor monitoring system will be described in more detail with reference to FIG. 2.

Figure 2 is a detailed configuration of the odor monitoring system according to the invention shown in FIG.

As can be seen with reference to FIG. 2, the preprocessor 200 includes a state measuring unit 210 and a state correcting unit 220.

The state measuring unit 210 includes a temperature sensor 211 for measuring temperature and a humidity sensor 212 for measuring humidity.

The state corrector 220 may include a temperature corrector 221 for lowering or raising the measured temperature of the sample air, a humidity compensator 222 for increasing or decreasing the measured humidity of the sample air, and odorless to the sample air. It includes an odorless air supply 223 for mixing the air.

The control unit 300 includes a controller 310 and a control state display unit 320. The controller 310 controls the pump 400 and the preprocessor 200. And the control state display unit 320 displays the control state, so that the operator can easily know.

The odor sensor unit 500 includes a pair of first sensors 510, a pair of second sensors 520, a third sensor 530, and a fourth sensor 540. The first to fourth sensors 510 to 540 may be a metal oxide semiconductor sensor, a conductive polymer sensor, a chemical reaction sensor, an optical sensor, or the like, whose electrical conductivity is changed (or the resistance value is changed) according to the concentration of the sample air. In this case, the first odor sensor (Sensor A) 510 may be a sensor exhibiting a high strength characteristic to the aromatic hydrocarbon, the second odor sensor (Sensor B) 520 is high in volatility such as alcohol and relatively low molecular weight It may be a sensor that exhibits a high strength characteristic to odorous substances. The third odor sensor (sensor C) 530 may be a sensor having high strength characteristics such as ammonia, and the fourth odor sensor (sensor D) 540 may be a sensor having high strength characteristics in hydrogen sulfide. As described above, the first to fourth odor sensors 510 to 540 may be odor sensors having different characteristic curves.

The odor analyzer 600 includes a numerical converter 610, a odor calculator 620, and a storage unit 630. The numerical converter 610 converts the value of the electrical analog signal of the smell sensor unit 500 to the value of the digital signal. The odor calculator 620 calculates the odor index by calculating the digitally converted value from the numerical converter 610 and the data of the storage unit 630, and calculates a calibration point through the obtained odor index, and the smell sensor The odor fingerprint and the like are calculated through the calibration curve for each sensor of the unit 500. The storage unit 630 stores the data calculated by the odor calculator 620.

The malodor alarm and collection unit 700 includes a discharge allowance threshold exceeding alarm 710 and the malodor collector 720. The emission allowance reference exceeding book 710 generates an alarm when it is confirmed by the odor analysis unit 600 that the calculated odor index exceeds the odor emission standard. The malodor collector 720 collects the air sample that exceeds the malodor emission standard.

The meteorological measuring unit 800 includes a wind vane 810, an anemometer 820, a thermometer 830, a hygrometer 840, and the like, and measures the odor analysis unit 600. Will output

So far, the structure of this invention and the operation | movement of the structure were demonstrated with reference to FIGS. Hereinafter, the theory of the odor monitoring system of the present invention will be described with reference to FIGS. 3 to 7.

3 is an exemplary view showing a calibration curve that takes a device value corresponding to the malodor index, Figure 4 is an exemplary view showing a reference line for setting the odor emission limit by the calibration curve. 5 is an exemplary view showing an n-dimensional odor fingerprint by n odor sensors, Figure 6 is an illustration showing a standard calibration curve, Figure 7 is an illustration showing the odor causes and concentration extraction using the standard calibration curve.

(1) Calibration of aspirated sample air

First, the inhaled sample air is corrected to allow the odor sensor unit 500 to react similarly to the olfactory perception condition under the control of the control unit 300 in the pre-treatment unit 200, and the odor analysis The calculation of the odor index in the unit 600 will be described.

In general, odor is a smell that gaseous substances stimulate the smell of a person, the higher the concentration of odor-causing substances tend to increase the degree of stimulation of the sense of smell, and at low concentrations, the smell may not feel irritating. Very low concentrations of odor-causing substances do not feel any stimulation, but if you gradually increase the concentration of odor-causing substances at a certain concentration (ppm or ppb) of what kind of smell, but you can feel the presence of the smell. This minimum concentration is called the detection threshold value, and when the concentration is higher than the detection threshold concentration, it is a step that can express the type or feel of the smell. This minimum concentration step is called a recognition threshold value (Recognition Threshold Value). do. In addition, the differential threshold value (Differential Threshold Value) means that the degree of change in the amount of stimulation can be detected by changing the amount of the original stimulus, and expressed as a percentage change (weber ratio, Weber ratio) of the original stimulus. Generally, the discrimination threshold is about 13 to 33%, but it is 4.2% for n-butanol, 9% for Amyl Acetate, and so on, depending on the type of material.

In this way, the intensity of the odor sensed by the smell has a close correlation with the concentration of the odor causing substance. In addition, since the concentration of the odor causing substance is proportional to the dilution ratio, in determining the intensity for measuring the odor, the dilution ratio of the sample (raw odor) can be expressed as the odor index.

For example, odorless air is mixed with the concentration P of the sample (raw), and 3 times, 10 times, 30 times, 100 times,... When the sample is diluted by the formula, the concentration of the sample is P / 3, P / 10, P / 30, P / 100... It is represented by an equation.

Therefore, the Odor Index is defined as follows by taking the natural logarithm of the dilution factor. The odor analysis unit 600 obtains the odor index through the following equation.

Odor Index (I) = 10 x log

The dilution factor table is shown below. Here, odor index * is odor index used for convenience.

Dilution factor 0 3 10 30 100 300 1000 3000 10000 Sample concentration P P / 3 P / 10 P / 30 P / 100 P / 300 P / 1000 P / 3000 P / 10000 Odor Index - 4.7 10 14.7 20 24.7 30 34.7 40 Odor Index * - 5 10 15 20 25 30 35 40

(2) Calculation of calibration curve according to correlation between odor index and electrical value of odor sensor

Next, the odor analyzer 600 receives the electrical signal corresponding to the measured odor intensity from the odor sensor unit 500 and obtains a calibration curve through the electrical signal. At this time, the malodor analysis unit 600 obtains the calibration curve according to the correlation with the numerical value of the electrical signal for the malodor index.

As described above, the first to fourth sensors 510 to 540 of the odor sensor unit 500 may have a metal oxide semiconductor sensor or a conductive polymer sensor whose electrical conductivity changes according to the concentration of the sample air. , Chemical reaction sensors, optical sensors, and the like. The extent to which the first to fourth sensors 510 to 540 react with the odor causing substance depends on the type and characteristics of the sensor, but will not be described in detail because it is outside the scope of the present invention. However, in the case of the metal oxide semiconductor sensor, the electrical conductivity (or resistance value) changes according to the concentration of the sample air, and the electrical conductivity may be expressed as δ = 1 / r (r: resistance value). Therefore, it can be inferred that the concentration of the sample air and the electrical conductivity are in proportional relationship and inversely related to the resistance value.

Therefore, in Table 1, the concentration of the sample (raw) is P, and the odorless air is introduced into the 3 times, 10 times, 30 times, 100 times,... The dilution of the sample in such a way that the concentration of the sample is P / 3, P / 10, P / 30, P / 100,... In this case, the electrical conductivity or resistance value of each of the first to fourth sensors 510 to 540 of the odor sensor unit 500 is taken and converted into a convenient unit for identification. Take the device value of the fourth sensors 510-540.

That is, the odor analysis unit 600 calculates a calibration curve by taking the device value corresponding to the calculated odor index.

Dilution factor 0 3 10 30 100 300 1000 3000 10000 Sample concentration P P / 3 P / 10 P / 30 P / 100 P / 300 P / 1000 P / 3000 P / 10000 Odor Index * - 5 10 15 20 25 30 35 40 Device value 1433 971 683 446 267 127 52 12 0

The calibration curve thus obtained is shown in FIG. 3.

(3) Establishment of odor emission standard through calibration curve

Next, the setting of the odor emission acceptance criteria through the calibration curve obtained by the odor analysis unit 600 will be described.

In general, the odor measurement method is based on the air dilution function method by the odor process test method, and when it is determined that there is a specified odor substance in the sample, the instrument analysis method can be performed in parallel. The air dilution sensory method refers to a method of diluting a sample (raw) with odorless air to obtain a dilution ratio until no smell is sensed. Due to the nature of odor, the odor emission standard is regulated by dilution ratio for complex odor (composite odor) and concentration of odor due to single odor substance (single odor) by concentration. In case of complex odor, the dilution ratio is set to 300 ~ 500 (outlet), 15 ~ 20 (site boundary line), and in case of single odor, the concentration (threshold concentration) between detection threshold and cognitive threshold for 22 substances is present. Doing.

Therefore, by setting the odor emission allowance reference value on the odor index indicated by the dilution ratio with respect to the original odor and the calibration curve calculated by the odor index, it is possible to easily determine whether the odor emission threshold value is exceeded by the device value.

The odor emission allowance standard set as described above is exemplarily shown in FIG. 4.

For example, in the previous example of Table 2, if the odor emission limit is set to a dilution rate of 300 or less, this is a value corresponding to the odor index '25' or less, which indicates that the device value is '127' or less. It should appear as.

(4) calculation of odor fingerprint

Next, the calculation of the n-dimensional odor fingerprint by the n odor sensors in the odor analyzer 600 will be described.

As described above, the odor sensor unit 500 uses n odor sensors, for example, the first to fourth sensors 510 to. In this case, as described above, the first to fourth odor sensors 510 to 540 may be odor sensors having different characteristic curves.

Each of the first to fourth odor sensors 510 to 540 having different characteristics measures the original odor, and transmits each device value to the odor analyzer 600, and the numerical value of the odor analyzer 600. The converter 610 converts each of the received values into digital device values a, b, c, and d. In addition, the odor calculator 620 of the odor analyzer 600 sets the device values a, b, c, and d into the vector values Va, Vb, Vc, and Vd. Calculate the sum Vab, Vac, Vad, Vbc, Vbd, Vcd of each vector value as shown in 3.

Vab2 = a2 + b2

vector Vab Vac Vad Vbc Vbd Vcd value 828 774 780 297 313 107

a = 774, b = 296, c = 31, d 103

The malodor operator 620 of the malodor analysis unit 600 uses the values of the vector sums (Vab, Vac, Vad, Vbc, Vbd, Vcd) taken in this manner in a six-dimensional diagram with Va, Vb, Vc, and Vd as the axes. Deduce odor fingerprints. The odor fingerprint thus derived is as shown in FIG. 5.

(5) Calculation of odor index using s standard calibration curve

Finally, the calculation of the malodor index, for example, the cause of the malodor and the concentration in the malodor analyzer 600 will be described.

As described above, in order to prepare a calibration curve when the concentration of the sample (raw) is set to P, odorless air is introduced into the sample 3 times, 10 times, 30 times and 100 times. The dilution of the sample was carried out so that the concentration of the sample was P / 3, P / 10, P / 30, P / 100... At this time, the calibration curve was calculated by taking the instrument value of the odor sensor corresponding to the odor index.

Now, the malodor calculator 620 of the malodor analyzer 600 selects one of the designated malodorous substances (eg, trimetalamine, trimethylamine), and converts the predetermined concentration (CVa) of the selected sample into the original concentration. To create a calibration curve. Then, a calibration curve is prepared by selecting the designated malodorous substance of another constant concentration (CVh) as the original odor (eg hydrogen sulfide, H2S).

As described above, a plurality of calibration curves are prepared for the designated malodorous substances, and a set of calibration curves thus prepared is shown in Table 4, and a standard calibration curve is illustrated in FIG. 6.

Concentration Unit: ppm Odor Index * 0 5 10 15 20 25 30 35 40 Sample concentration P P / 3 P / 10 P / 30 P / 100 P / 300 P / 1000 P / 3000 P / 10000 Amine concentration 1.5 0.5 0.15 0.05 0.015 0.005 0.0015 0.0005 0.00015 Device value 1433 971 683 446 267 127 52 12 0

Odor Index * 0 5 10 15 20 25 30 35 40 Sample concentration P P / 3 P / 10 P / 30 P / 100 P / 300 P / 1000 P / 3000 P / 10000 H ₂ S concentration 6 2 0.6 0.2 0.06 0.02 0.006 0.002 0.0006 Device value 712 475 334 217 126 63 19 5 0

Here, if the unknown sample A is measured and the device value is '400' as shown in FIG. 7, and the unknown value is measured, the device value is '1000'.

The odor calculator 620 may estimate that the unknown sample A contains about 0.05 ppm of amine (concentration of the standard calibration curve corresponding to the odor index of 15) and about 2 ppm of hydrogen sulfide by a standard calibration curve. It can be assumed that it contains about 0.5 ppm.

 While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, May be modified, modified, or improved.

1 is a schematic configuration diagram of a odor monitoring system according to the present invention.

2 is a detailed configuration diagram of the odor monitoring system according to the present invention shown in FIG.

3 is an exemplary diagram showing a calibration curve that takes a device value corresponding to an odor index.

4 is an exemplary view showing a baseline for setting odor emission limit by calibration curve.

5 is an exemplary view showing an n-dimensional odor fingerprint by n odor sensors.

6 is an exemplary view showing a standard calibration curve.

7 is an exemplary view showing the extraction of odor causes and concentration using a standard calibration curve.

[Description of Symbols for Main Parts of Drawing]

100: odor inlet

200: preprocessing unit

210: state measurement unit

211: temperature sensor 212: humidity sensor

220: State Compensation

221: temperature compensator 222: humidity compensator 223: odorless air supply

300: control unit 310: controller 320: control status display unit

400: pump

500: odor sensor unit 510 to 540: first to fourth odor sensor

600: odor analysis unit

610: numeric converter 620: odor calculator 630: storage unit

700: odor alarm and collector

710: emission limit exceeded alarm 720: odor collector

800: weather measurement unit

810: wind vane 820: anemometer 830: thermometer 840: hygrometer

900: data output unit

1000: two-way communication

Claims (10)

A pre-processing unit measuring information on the sampled air sucked and correcting the sample air based on the measured information; A control unit connected to the preprocessing unit and controlling a correction amount of the sample air based on the measured information about the sample air; An odor sensor unit measuring an odor of the corrected sample air; The signal measured by the odor sensor unit is signal-processed, the intensity of malodor is calculated as the malodor index according to the dilution factor, the calibration curve is calculated through the malodor index, and the value of each original smell is vectorized through the calibration curve. A odor analysis unit for deriving odor fingerprints shown in a table of dimensions, Wherein the malodor analysis unit converts and digitizes the value measured by the odor sensor unit, and calculates the calibration curve through the malodor index using the digitally converted value. A odor calculator for calculating the odor fingerprint through a calibration curve, and a storage unit for storing the calculated odor index, The odor analysis unit is a odor monitoring system, characterized in that for determining whether the measured value exceeds the odor emission acceptance criteria. The method of claim 1, wherein the pretreatment unit An odorless feeder for adding odorless air to the sucked sample air; A temperature corrector for raising or lowering the temperature of the sucked sample air; And a humidity compensator for increasing or decreasing the humidity of the sampled air. delete delete The method of claim 1, And a odor alarm unit for generating an alarm when the value measured by the odor sensor unit is determined to exceed the odor emission allowance standard by the odor analyzer. The method of claim 1, The odor monitoring system, characterized in that it further comprises a odor collecting unit for storing the inhaled air, when the value measured by the odor sensor unit is confirmed by the odor analysis unit to exceed the odor emission allowance criteria. The method of claim 1, If it is determined by the odor analysis unit that the value measured by the odor sensor unit exceeds the odor emission allowance standard, further comprises a meteorological measurement unit for measuring the weather condition at that time, and delivers to the odor analysis unit Odor Monitoring System, characterized in that A pre-processing unit measuring information on the sampled air sucked and correcting the sample air based on the measured information; A control unit connected to the preprocessing unit and controlling a correction amount of the sample air based on the measured information about the sample air; An odor sensor unit having a plurality of sensors for measuring odor with respect to the corrected sample air; Obtaining standard calibration curves corresponding to the number of sensors of the odor sensor unit, and processing the value measured by the odor sensor unit using the standard calibration curve, to identify the odor causing substance, and includes a odor analysis unit for extracting the concentration and, Here, the odor analysis unit converts and digitizes the value measured by the odor sensor unit digitally, and calculates the intensity of the odor as a odor index according to the dilution ratio using the digitally converted value and the odor index A odor calculator for calculating a calibration curve through the calibration curve and vectorizing the values of each original value through the calibration curve to derive a odor fingerprint represented by an n-dimensional chart, and a storage unit for storing the calculated odor index, The odor analysis unit is a odor monitoring system, characterized in that for determining whether the measured value exceeds the odor emission acceptance criteria. The method of claim 8, wherein the pretreatment unit An odorless feeder for adding odorless air to the sucked sample air; A temperature corrector for raising or lowering the temperature of the sucked sample air; And a humidity compensator for increasing or decreasing the humidity of the sampled air. The method of claim 8, wherein the odor analysis unit And converting each value transmitted from the plurality of sensors into digital, and calculating each of the digitally converted values and vectors, and deriving a malodor fingerprint.

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