KR20190075482A - Method for detecting failure of sensor of atmosphere environment - Google Patents

Abstract

The present invention relates to a method for detecting a failure of an atmospheric environment sensor, which divides atmospheric environment measurement data measured by atmospheric environment sensors of an environment measurement system into a plurality of data groups in accordance with correlation or mutual correlation, determines data validity by each data group including two or more correlated atmospheric measurement data, and determines the occurrence of an error in at least one atmospheric environment sensor among the plurality of atmospheric environment sensors if one or more invalid data groups exist.

Description

METHOD FOR DETECTION FAILURE OF SENSOR OF ATMOSPHERE ENVIRONMENT [0002]

The present invention relates to a method for detecting a failure of an atmospheric environment sensor.

In recent years, there has been a growing public interest in indoor and outdoor air conditions due to frequent occurrence of dust, increase in fine dust concentration, and sick house syndrome.

As a result, the atmospheric environment measurement system for measuring indoor and outdoor atmospheric environments is also attracting public attention.

The atmospheric environment measurement system may include a plurality of atmospheric environmental sensors (for example, VOCs (for example, VOCs) for measuring various pollutants (e.g., volatile organic compounds, carbon monoxide, carbon dioxide, fine dust, etc.) Volatile Organic Compound (VOC) sensor, carbon monoxide sensor, carbon dioxide sensor, dust sensor, etc.) and a variety of atmospheric environment sensors to receive atmospheric environment measurement data, Device.

Here, the atmospheric environment measurement system may be implemented in a single body in which a plurality of atmospheric environment sensors and an atmospheric environment monitoring apparatus are installed in a single body, or a plurality of atmospheric environment sensors and an atmospheric environment monitoring apparatus may be separated into separate types .

Such an atmospheric environment measurement system should accurately inform the system user of the atmospheric environment quality of outdoor or indoor space.

Here, if any one of the atmospheric environment sensors malfunctions, the reliability of the entire air environment management system may deteriorate.

In order to solve this problem, in the related art, when detecting an abnormal situation with respect to the atmospheric environment through at least one of the atmospheric environment sensors of the plurality of atmospheric environment sensors, the at least one atmospheric environment sensor transmits the sensed data, Each sensor was analyzed to determine whether one or more sensors of the atmospheric environment were operating normally.

In the patent document 1, the environment control server calculates the sensing value and the block average value using the sensing data received from any of the atmospheric environment sensors to determine whether the atmospheric environment sensor is operating normally, And compare the current sensing value and the current sensing value with the block average value.

If there are a large number of air environment sensors that transmit sensed data, the environment control server has to process a very complicated procedure as many as the number of sensors of the atmospheric environment, which results in a large load on the environment control server.

Korean Patent Publication No. 10-2012-0108625

SUMMARY OF THE INVENTION In view of the foregoing, an object of the present invention is to divide atmospheric environment measurement data measured by atmospheric environmental sensors of an environmental measurement system into a plurality of data groups according to whether they are correlated with each other, The present invention provides a method for determining whether data is valid for each data group including data and determining that a failure occurs in at least one of the plurality of atmospheric environmental sensors when at least one data group is not available.

In order to achieve the above object, in one aspect, the present invention provides a method for detecting a failure of an atmospheric environment sensor in an atmospheric environment monitoring apparatus, the method comprising: A data receiving step of periodically receiving the measurement data to the Nth atmospheric environment measurement data; A data classifying step of classifying the first atmospheric environment measurement data to the Nth atmospheric environment measurement data into a first correlation data group to an Mth correlation data group according to a correlation between them; Determining validity of data for each of the first to Mth correlation data groups; And determining whether data validity of each of the first correlation data group to the Mth correlation data group is valid or not as a result of judging whether data validity of at least one of the first correlation data group to the Mth correlation data group, And a sensor failure detecting step of determining that a failure has occurred in at least one of the atmospheric environment sensors of the first to Nth atmospheric environment sensors, if present.

As described above, according to the present invention, the atmospheric environment monitoring device can classify the atmospheric environment measurement data received from the plurality of atmospheric environment sensors into a plurality of data groups according to the correlation between them, If there is at least one data group that is not valid, it is determined that a failure has occurred in one or more of the atmospheric environmental sensors. Therefore, It is possible to more easily determine whether or not the atmospheric environment sensor is faulty as compared with determining whether or not each of the environmental sensors is faulty.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view illustrating a configuration of an atmospheric environment measurement system according to an embodiment of the present invention;
2 is a view schematically showing a configuration of an atmospheric environment monitoring apparatus according to an embodiment of the present invention;
3 is a flowchart illustrating a process of detecting a failure of an atmospheric environment sensor in an atmospheric environment monitoring apparatus according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In describing the components of the present invention, the terms first, second, A, B, (a), (b), and the like can be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. It is to be understood that any component may be directly connected or connected to the other component, but that another component may be "connected "," coupled ", or "connected" between each component.

FIG. 1 is a view illustrating a configuration of an atmospheric environment measurement system according to an embodiment of the present invention. Referring to FIG.

The atmospheric environment measuring system 100 according to an embodiment of the present invention includes first to Nth ambient air sensors 110 and an atmospheric environment monitoring apparatus 120. [

The first to Nth ambient air sensors 110 may include a VOC (Volatile Organic Compound) sensor, a carbon monoxide sensor, a carbon dioxide sensor, and a fine dust sensor.

The first to Nth air-condition sensors 110 to 110 are installed in a room or outdoor space of a predetermined area to measure an atmospheric condition of a predetermined area, that is, a volatile organic compound concentration, a carbon monoxide concentration, The carbon dioxide concentration, the fine dust concentration, and the like, and transmits the first to Nth atmospheric measurement data, which are measurement data for each of them, periodically to the atmospheric environment monitoring apparatus 120 to be generated and described later .

Specifically, the VOC sensor included in the first to Nth atmospheric environment sensors 110 periodically measures the VOC concentration of the predetermined area, and periodically generates VOC concentration data, which is atmospheric environment measurement data, Can be transmitted to the environment monitoring apparatus 120.

The carbon monoxide sensor included in the first to Nth ambient air sensors 110 periodically measures the concentration of carbon monoxide in the predetermined area and periodically generates the carbon monoxide concentration data as the atmospheric environment measurement data, To the monitoring device (120).

The carbon dioxide sensor included in the first to Nth ambient air sensors 110 periodically measures the concentration of carbon dioxide in the predetermined area and periodically generates the carbon dioxide concentration data as the atmospheric environment measurement data, To the monitoring device (120).

The fine dust sensor included in the first to Nth ambient air sensors 110 periodically measures the concentration of fine dust in the predetermined area and periodically generates fine dust concentration data corresponding to the atmospheric environment measurement data To the atmospheric environment monitoring device 120.

The first to N-th atmospheric sensors 110 to 110 may perform operations (measurement, generation, and transmission) of the first to N-th atmospheric environment sensors 110 to ensure accuracy between the atmospheric environment measurement data. ) Periods may all be set to be the same or similar.

The atmospheric environment monitoring device 120 periodically receives the first to Nth atmospheric measurement data from the first to Nth atmospheric environment sensors 110 to determine the outdoor atmospheric environment state of the predetermined area And guidance.

Here, the atmospheric environment monitoring device 120 may be formed integrally with or separate from the first to Nth ambient environment sensors 110.

When the atmospheric environment monitoring apparatus 120 is formed separately from the first to Nth atmospheric environment sensors 110, the atmospheric environment monitoring apparatus 120 includes first to Nth atmospheric environment sensors 110 The first to Nth atmospheric environment measurement data to the Nth atmospheric environment measurement data can be received from the first to Nth atmospheric environment sensors 110 through a short distance wireless communication with the first to third atmospheric environment sensors, .

In an embodiment of the present invention, the atmospheric environment monitoring device 120 may store the first to Nth atmospheric measurement data received from the first to Nth atmospheric environment sensors 110 to the correlated data .

In other words, the atmospheric environment monitoring apparatus 120 divides the first to Nth atmospheric measurement data into the first to Mth correlation data groups. Here, N and M are natural numbers, and M may be smaller than N. [ In other words, M < N.

For example, when the first to Nth atmospheric measurement data include VOC concentration data, carbon monoxide concentration data, carbon dioxide concentration data, and fine dust concentration data, The carbon monoxide concentration data and the carbon dioxide concentration data are classified into the first correlation data group and the VOC concentration data and the fine dust concentration data can be classified into the second correlation data group.

More specifically, since the concentration of carbon monoxide and the concentration of carbon dioxide in the outdoor or indoor air also increase with the increase of automobile soot and thermal power generation, use of a boiler in a room, use of a heating device, and the like, The data and the carbon dioxide concentration data can be classified into the first correlation data group.

Since the volatile organic compounds (VOC) are precursors of fine dust, it is common that the concentration of fine dust in the outdoor or indoor air also increases as the concentration of VOC in the outdoor or indoor air increases. Therefore, the atmospheric environment monitoring apparatus 120 can classify the VOC concentration data and the fine dust concentration data into the second correlation data group.

The atmospheric environment monitoring device 120, which divides the first to Nth atmospheric measurement data into the first to Mth correlation data groups, includes a first correlation data group to an Mth correlation And judges whether data is valid for each of the relational data groups.

Here, the configuration in which the atmospheric environment monitoring apparatus 120 determines whether data is valid for one of the correlation data groups is as follows.

The atmospheric environment monitoring device 120 receives at least two or more atmospheric environment measurement data included in any one of the correlation data groups for a predetermined period of time, .

Here, when the data change patterns of two or more atmospheric environment measurement data are identical, the atmospheric environment monitoring apparatus 120 determines that two or more atmospheric environment measurement data included in any one of the correlation data groups are valid, that is, It can be determined that any one correlation data group is valid.

On the other hand, if there are one or more data change patterns different from the remaining data change patterns among the data change patterns for the two or more atmospheric environment measurement data, It is determined that at least one of the atmospheric environment measurement data is invalid, that is, it is determined that any one of the correlation data groups is invalid.

For example, when both the carbon monoxide concentration data in the first correlation data group including the carbon monoxide concentration data and the carbon dioxide concentration data in the mutually proportional relationship and the data variation pattern in the predetermined period for the carbon dioxide concentration data are in an increasing or decreasing pattern, The monitoring apparatus 120 may determine that the carbon monoxide concentration data and the carbon dioxide concentration data are valid.

On the other hand, when the data change pattern of the carbon monoxide concentration data is an increase pattern, whereas when the data change pattern of the carbon dioxide concentration data is decreased or unchanged, the atmospheric environment monitoring apparatus 120 detects any one of the carbon monoxide concentration data and the carbon dioxide concentration data It can be judged to be invalid.

The atmospheric environment monitoring device 120 can determine whether data is valid for each of the first to Mth correlation data groups through the above-described configuration.

The atmospheric environment monitoring apparatus 120 determines whether data is valid for each of the first to Mth correlation data groups, and as a result, determines that an invalid correlation among the first to Mth correlation data groups If at least one data group exists, the atmospheric environment monitoring apparatus 120 may determine that a failure has occurred in one or more of the atmospheric environment sensors of the first to Nth environmental sensors 110.

In this case, the atmospheric environment monitoring apparatus 120 generates an atmospheric environment sensor check request message, which is a message for informing the environmental measurement system administrator of the need for the at least one atmospheric environment sensor, and transmits the message to the mobile communication terminal of the environmental measurement system administrator .

Hereinafter, the configuration of the atmospheric environment monitoring apparatus 120 according to the embodiment of the present invention will be described.

2 is a block diagram of a configuration of an atmospheric environment monitoring apparatus according to an embodiment of the present invention.

The atmospheric environment monitoring apparatus 120 according to an embodiment of the present invention may include a communication interface unit 210, a data storage unit 220, and a controller 230.

The communication interface unit 210 is connected to the first to third Nth air conditioners through the first to Nth air conditioner sensors 110 through the short distance wireless communication with the Nth air conditioner sensor 110, And may periodically receive the first atmospheric environment measurement data to the Nth atmospheric environment measurement data from the sensor 110. [

In addition, the communication interface unit 210 transmits an atmospheric environment sensor check request message, which is a message for informing the environmental measurement system administrator of the necessity of checking at least one of the atmospheric environment sensors from the first to Nth atmospheric environment sensors 110 Or to a mobile communication terminal of an environmental measurement system manager. It goes without saying that the communication interface unit 210 can transmit the atmospheric environment sensor check request message to the environment measurement system administrator's mobile communication terminal through the mobile communication network.

The communication interface unit 210 may include at least one of a short-range wireless communication module and a network interface card.

The data storage unit 220 temporarily stores data to be processed by the control unit 230 to be described later or stores a program for performing the function of the atmospheric environment monitoring apparatus 120 and controls the operation of the atmospheric environment monitoring apparatus 120 And stores the necessary data.

The data storage unit 220 may store the data of the first to Nth air conditioners received from the first to Nth air conditioner sensors 110 through the communication interface unit 210 periodically, Accumulates measurement data.

The data storage unit 220 may include an internal storage device of the atmospheric environment monitoring device 120 or an external storage server.

The control unit 230 is a module that provides overall functions of the atmospheric environment monitoring device 120 and may be implemented as a main board of the atmospheric environment monitoring device 120. [

In the embodiment of the present invention, the controller 230 receives the first to Nth atmospheric measurement data received from the first to Nth atmospheric environment sensors 110 through the communication interface 210, Identify by correlated data.

In other words, the controller 230 divides the first to Nth atmospheric measurement data into the first to Mth correlation data groups.

For example, when the first to Nth atmospheric measurement data include the VOC concentration data, the carbon monoxide concentration data, the carbon dioxide concentration data, and the fine dust concentration data, the controller 230 calculates the carbon monoxide concentration data , The carbon dioxide concentration data may be classified into the first correlation data group, and the VOC concentration data and the fine dust concentration data may be classified into the second correlation data group.

More specifically, since the concentrations of carbon monoxide and carbon dioxide in the outdoor or indoor air also increase with the increase of automobile soot and thermal power generation, use of indoor boilers, heating devices, and the like, the controller 230 controls the concentration of carbon monoxide The concentration data can be classified into the first correlation data group.

Since the volatile organic compounds (VOC) are precursors of fine dust, it is common that the concentration of fine dust in the outdoor or indoor air also increases as the concentration of VOC in the outdoor or indoor air increases. Accordingly, the controller 230 can divide the VOC concentration data and the fine dust concentration data into the second correlation data group.

The control unit 230 divides the first to Nth atmospheric measurement data into the first to Mth correlation data groups and the M to Nth correlation data groups, And judges whether data is valid for each of them.

Here, the configuration in which the controller 230 determines whether data is valid for one of the correlation data groups is as follows.

The control unit 230 extracts two or more atmospheric environment measurement data included in any one of the first correlation data group and the second correlation data group among the first to Nth measurement data accumulated in the data storage unit 220, And acquires a data change pattern for a predetermined period for each of the atmospheric environment measurement data.

If the data change patterns for two or more atmospheric environment measurement data are the same, the controller 230 determines that two or more atmospheric environment measurement data included in any one of the correlation data groups are valid, that is, It can be determined that the correlation data group is valid.

On the other hand, if there is at least one data change pattern that is different from the remaining data change patterns among the data change patterns for two or more atmospheric environment measurement data, the control unit 230 determines that two or more atmospheres It can be determined that the environmental measurement data is not valid, that is, any one of the correlation data groups is invalid.

For example, if both the carbon monoxide concentration data and the data change pattern for a predetermined period of the carbon dioxide concentration data in the first correlation data group including the carbon monoxide concentration data and the carbon dioxide concentration data in the mutually proportional relationship are increase or decrease patterns, 230 can determine that the carbon monoxide concentration data and the carbon dioxide concentration data are valid.

On the other hand, when the data change pattern of the carbon monoxide concentration data is an increase pattern while the data change pattern of the carbon dioxide concentration data is decreased or unchanged, the control unit 230 determines that any one of the carbon monoxide concentration data and the carbon dioxide concentration data is invalid It can be judged.

The controller 230 can determine whether data is valid for each of the first to Mth correlation data groups through the above configuration.

As a result of determining whether the data is valid for each of the first to Mth correlation data groups in the controller 230, it is determined whether or not the valid correlation data group among the first to Mth correlation data groups The control unit 230 may determine that a failure has occurred in one or more of the atmospheric environment sensors of the first to N &lt; th &gt;

In this case, the control unit 230 generates an atmospheric environment sensor check request message, which is a message for informing the environmental measurement system administrator of the need to check one or more atmospheric environment sensors, Message to the mobile communication terminal of the environmental measurement system manager.

As described above, in the embodiment of the present invention, the atmospheric environment monitoring device 120 divides the atmospheric environment measurement data received from the plurality of atmospheric environment sensors into a plurality of data groups according to the correlation between them, If there is at least one data group that is not valid, it can be determined that a failure has occurred in at least one of the atmospheric environment sensors of the plurality of atmospheric environment sensors Therefore, it is possible to more easily determine whether or not the atmospheric environment sensor is malfunctioning, as compared with the conventional case of determining the malfunction of each of the atmospheric environment sensors.

Hereinafter, a process of detecting a failure of the atmospheric environment sensor in the atmospheric environment monitoring apparatus 120 according to the embodiment of the present invention will be described.

3 is a flowchart illustrating a process of detecting a failure of an atmospheric environment sensor in an atmospheric environment monitoring apparatus according to an embodiment of the present invention.

First, the atmospheric environment monitoring device 120 periodically receives the first to Nth atmospheric measurement data from the first to Nth atmospheric environment sensors 110 at step S310.

Thereafter, the atmospheric environment monitoring apparatus 120 monitors the first to Nth atmospheric environment measurement data received from the first to Nth ambient environment sensors 110, And the correlation data group to the Mth correlation data group (S320).

The atmospheric environment monitoring apparatus 120, which divides the first to Nth atmospheric measurement data into the first to Mth correlation data groups, includes a first correlation data group to an Mth correlation data group Whether or not the data is valid for each group is determined (S330).

Specifically, the atmospheric environment monitoring apparatus 120 receives each of the two or more atmospheric environment measurement data included in any one of the correlation data groups for a predetermined period of time, The data change pattern can be grasped.

Here, when the data change patterns of two or more atmospheric environment measurement data are identical, the atmospheric environment monitoring apparatus 120 determines that two or more atmospheric environment measurement data included in any one of the correlation data groups are valid, that is, It can be determined that any one correlation data group is valid.

On the other hand, if there are one or more data change patterns different from the remaining data change patterns among the data change patterns for the two or more atmospheric environment measurement data, It is determined that at least one of the atmospheric environment measurement data is invalid, that is, it is determined that any one of the correlation data groups is invalid.

When the atmospheric environment monitoring apparatus 120 judges whether the data is valid for each of the first to Mth correlation data groups, it is determined that the first to Mth correlation data groups The atmospheric environment monitoring apparatus 120 may determine that a failure has occurred in one or more of the atmospheric environmental sensors of the first to Nth atmospheric environment sensors 110 S340, S350).

In this case, the atmospheric environment monitoring apparatus 120 generates an atmospheric environment sensor check request message, which is a message for informing the environmental measurement system administrator of the need for the at least one atmospheric environment sensor, and transmits the message to the mobile communication terminal of the environmental measurement system administrator (S360).

On the other hand, if all of the first correlation data group to the M correlation data group are valid in step S340, the atmospheric environment monitoring device 120 determines that all of the first to Nth ambient environment sensors 110 are normal , And the step S330 can be resumed.

As described above, the process of detecting the failure of the atmospheric environment sensor by the atmospheric environment monitoring device 120 may be implemented by a software program, and the atmospheric environment monitoring device 120 may be combined with the software program to execute the process . In other words, the software program is stored and installed in the atmospheric environment monitoring device 120, so that the above-described process is executed in the atmospheric environment monitoring device 120.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

Claims (4)

A method for detecting a failure of an atmospheric environment sensor in an atmospheric environment monitoring apparatus,
A data receiving step of periodically receiving first to Nth atmospheric measurement data from the first to Nth atmospheric environment sensors;
A data classifying step of classifying the first atmospheric environment measurement data to the Nth atmospheric environment measurement data into a first correlation data group to an Mth correlation data group according to a correlation between them;
Determining validity of data for each of the first to Mth correlation data groups; And
As a result of determining whether the data is valid for each of the first to Mth correlation data groups, one or more invalid correlation data groups are present among the first to Mth correlation data groups A sensor failure detection step of determining that a failure has occurred in at least one of the first to Nth atmospheric environment sensors,
Wherein the at least one sensor detects the failure of the atmospheric environment sensor. 2. The method according to claim 1,
Receiving each of two or more atmospheric environment measurement data included in one of the correlation data groups for a predetermined period of time and grasping a data change pattern for a predetermined period for each of the two or more atmospheric environment measurement data;
Determining that any one of the correlation data groups is valid when the data change patterns of the two or more atmospheric environment measurement data are identical; And
Determining that any one of the data groups is invalid if at least one data change pattern is different from the remaining data change patterns among the data change patterns for the two or more atmospheric environment measurement data,
Wherein the at least one sensor detects a failure of the atmospheric environment sensor. 2. The method of claim 1, wherein after the sensor failure detection step
A sensor failure notification step of generating an atmospheric environment sensor check request message, which is a message for informing an environmental measurement system administrator of the need for the at least one atmospheric environment sensor, to the mobile communication terminal of the environmental measurement system administrator
Further comprising the step of: detecting a failure of the atmospheric environment sensor. The method according to claim 1,
The atmospheric environment monitoring apparatus according to claim 1, wherein the first to Nth atmospheric measurement data includes VOC (Volatile Organic Compound) concentration data, carbon monoxide concentration data, carbon dioxide concentration data and fine dust concentration data, The carbon monoxide concentration data and the carbon dioxide concentration data are divided into first correlation data groups and the VOC concentration data and the fine dust concentration data are classified into second correlation data groups. A method for detecting a fault.

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