EP4157090A1 - Device for presenting the loss of cognitive performance and use of the device - Google Patents

Device for presenting the loss of cognitive performance and use of the device

Info

Publication number
EP4157090A1
EP4157090A1 EP21813789.1A EP21813789A EP4157090A1 EP 4157090 A1 EP4157090 A1 EP 4157090A1 EP 21813789 A EP21813789 A EP 21813789A EP 4157090 A1 EP4157090 A1 EP 4157090A1
Authority
EP
European Patent Office
Prior art keywords
carbon dioxide
dioxide concentration
air
loss
cognitive performance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21813789.1A
Other languages
German (de)
French (fr)
Inventor
Petri Laakso
Cyril BAJAMUNDI
Ari Piispanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Soletair Power Oy
Original Assignee
Soletair Power Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Soletair Power Oy filed Critical Soletair Power Oy
Publication of EP4157090A1 publication Critical patent/EP4157090A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—Specially adapted to detect a particular component
    • G01N33/004—Specially adapted to detect a particular component for CO, CO2
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital using a threshold to release an alarm or displaying means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/14—Toxic gas alarms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0242—Operational features adapted to measure environmental factors, e.g. temperature, pollution

Definitions

  • the invention relates to a device for pre senting the loss of cognitive performance as defined in claim 1, and use of the device as defined in claim 12.
  • An object of the invention is to provide a new type of manner to monitor human cognitive perfor mance, and particularly weakening thereof.
  • an object of the invention is to provide a new device to indicate the cognitive performance and loss es therein in real time.
  • an object of the invention is to provide a device to determine the car bon dioxide concentration in ambient air in real time.
  • an object of the invention is to improve response to the condition of people in real time.
  • the device comprises at least means for meas uring carbon dioxide concentration and determining a loss of cognitive performance, and a display device for presenting the abovementioned parameters.
  • a device for presenting the loss of cognitive performance comprises at least one measurement sensor continuously measuring carbon dioxide concentration in ambient air, a display device presenting the carbon dioxide concentration in ambient air and the loss of cognitive performance in relation to the carbon diox ide concentration in the air, and control software de termining the loss of cognitive performance in rela tion to the measured carbon dioxide concentration in the air.
  • cognitive performance refers to human cognitive functions generally known per se, e.g. functions related to perception, thought, memory, problem solving, decision making and/or learn ing, on which functions an increase in carbon dioxide in inhaled air has a weakening, such as a tiring, ef fect.
  • the carbon dioxide concentration in air is in versely proportional to human performance.
  • the measurement sensor used may be any suita ble measurement sensor by which the carbon dioxide concentration in air may be measured.
  • a display device refers to any display device or device having a display, which device has a suitable display for presenting figures and/or graphics on the basis of measurement and/or determination results.
  • the display device used may be any suitable display device, e.g. a separate display, computer, personal digital assistant, tablet or a corresponding computer, a mobile telephone, smartphone or a corresponding device, or another suit able device.
  • the display of the dis play device is a touchscreen or the like.
  • control software refers to any suitable software, program or the like, by which a loss of cognitive performance may be deter mined on the basis of measured measurement results.
  • the display device comprises the control software.
  • the present device compris es a separate device comprising the control software and connected to the measurement sensor and to the dis play device.
  • control software is ar ranged to determine a change in the loss of cognitive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a zero level of the loss of cognitive performance is configured to correspond to a normal carbon dioxide concentration in air.
  • the normal carbon dioxide concentration is defined to be 400 ppm.
  • the normal carbon dioxide concentration in air can vary at different areas and sites, and it is expectable that in future the normal carbon dioxide concentration in air will increase, particularly in urban environments. If necessary, the normal carbon dioxide concentration may be modified easily in the device, e.g. by means of the display device and/or the control software.
  • control software is ar ranged to determine a change in the loss of cognitive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a value 400 ppm of the carbon dioxide concentration in air is configured to correspond to a value 0 of the loss of cognitive performance, and a value 800 ppm of the carbon dioxide concentration in air is configured to correspond to a value -20% of the loss of cognitive performance.
  • the values specified herein are based on currently known published research results. According to the current knowledge, good cognitive performance is achieved when the carbon dioxide concentration in air is 400 - 600 ppm.
  • the device such as the con trol software thereof, is arranged to store measurement data of the carbon dioxide concentration in air and the losses of cognitive performance determined therefrom.
  • the device comprises a storage por tion or device.
  • the display device comprises a memory or a storage space.
  • the control software is arranged to store the data and keep in storage the data of a specific predeter mined time interval, e.g. of the time of 1 - 24 hours.
  • the display device is ar ranged to present stored carbon dioxide concentration and cognitive performance history data.
  • the stored data of the time of 1 - 24 hours are presentable.
  • the display device is arranged to present the stored carbon dioxide concen tration and cognitive performance history data of a de sired time as a graph, e.g. curves, bars or other graphics.
  • a timeline of the stored carbon dioxide concentration and cognitive performance history data is selectable.
  • the de vice or the display device thereof is provided with se lection elements, e.g. at least one controller, selec tion button, selection box, selection field, text field or the like, by which selecting may be performed.
  • se lection elements e.g. at least one controller, selec tion button, selection box, selection field, text field or the like, by which selecting may be performed.
  • the selection element a desired timeline for presenting the stored history data may be selected.
  • Corresponding selection elements may also be provided for controlling other data.
  • the display device has a touchscreen by means of which selecting may be per formed, values adjusted or the device controlled.
  • the device comprises an alarm device giving an alarm when a predetermined car bon dioxide concentration is exceeded in ambient air.
  • the alarm and/or an alarm limit may be determined by means of the control software.
  • the alarm limit may be controlled with a suitable selection element.
  • the alarm may be given for one or more crossings over a carbon dioxide concentra tion limit.
  • at least one alarm limit is arranged to be a carbon dioxide concentration of 600 - 1000 ppm, e.g. 800 ppm.
  • the alarm may be indicated in a suitable manner, e.g. by sound, color and/or other suitable manner.
  • desired color codes are arranged to illustrate a level of the respective val ues.
  • the device according to the invention may be used in a desired space, work space, office, meeting room, coworking space, school and/or other correspond ing space to determine the carbon dioxide concentra tion in air and/or the loss of cognitive performance, and in various combinations thereof.
  • the carbon dioxide concentration may be measured con tinuously, and by means thereof the changes in carbon dioxide concentration in air and in cognitive perfor mance, particularly in the loss of cognitive perfor mance, may be presented in real time. Accordingly, thanks to the invention, the condition of people may be responded to faster and better in real time.
  • the device according to the invention may be produced easily and cost efficiently.
  • the device is easy to use, and it may be used in practically all situations and conditions.
  • Fig. 1 illustrates one device according to the invention for presenting a loss of cognitive per- formance in relation to carbon dioxide concentration in air.
  • a device for presenting the loss of cognitive performance as illustrated in Fig. 1 comprises one measurement sensor (2) continuously measuring carbon dioxide concentration in ambient air, and a display device (1) presenting carbon dioxide concentration (3) in ambient air and loss (4) of cognitive performance in relation to carbon dioxide concentration in the air on a display.
  • the device comprises con trol software which is part of the display device and which determines the loss of cognitive performance in relation to measured carbon dioxide concentration in the air.
  • the display device is in the device of Fig. 1 a tablet, and the display of the display device is a touchscreen.
  • control software is arranged to determine a change in the loss of cogni tive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a value 400 ppm of the carbon dioxide concentra tion in air is configured to correspond to a value 0 of the loss of cognitive performance, and a value 800 ppm of the carbon dioxide concentration in air is config ured to correspond to a value -20% of the loss of cog nitive performance.
  • the display device comprises a memory, and the control software is ar- ranged to store carbon dioxide concentration and cog nitive performance data and keep in storage the data of a predetermined time interval.
  • the display device is arranged to present stored carbon dioxide concentration and cognitive performance histo ry data (5), e.g. of the time of 1 - 24 hours, in the form of graphics on the display.
  • the device of Fig. 1 may be provided with an alarm device giving an alarm when a predetermined car bon dioxide concentration is exceeded in ambient air.
  • desired color codes may be arranged to illustrate a level of the respective values, e.g. red color to illustrate very high carbon dioxide concentration.
  • the measurement sensor, the display device and the control software used may be devices and software known per se, and they are not described in any more detail in this connection.
  • the device according to Fig. 1 may be used in any situation, e.g. indoors, to measure the carbon di oxide concentration in ambient air, to verify a change in the carbon dioxide concentration and thereby to present the loss of cognitive performance in real time.
  • the device according to the invention is suitable as different embodiments for use in a variety of applications.

Abstract

The invention relates to a device for presenting the loss of cognitive performance. The device comprises at least one measurement sensor (2) continuously measuring carbon dioxide concentration in ambient air, and a display device (1) presenting the carbon dioxide concentration (3) in ambient air and loss (4) of cognitive performance in relation to the carbon dioxide concentration in air, and control software determining the loss of cognitive performance in relation to the measured carbon dioxide concentration in air. In addition, the invention relates to use of the device.

Description

DEVICE FOR PRESENTING THE LOSS OF COGNITIVE PERFORMANCE AND USE OF THE DEVICE
FIELD
The invention relates to a device for pre senting the loss of cognitive performance as defined in claim 1, and use of the device as defined in claim 12.
BACKGROUND
It is known that a person's cognitive perfor mance weakens when the person becomes tired. There are various factors contributing to a person becoming tired. One tiredness-adding factor is increase in the carbon dioxide concentration in inhaled air.
OBJECT
An object of the invention is to provide a new type of manner to monitor human cognitive perfor mance, and particularly weakening thereof. In addi tion, an object of the invention is to provide a new device to indicate the cognitive performance and loss es therein in real time. In addition, an object of the invention is to provide a device to determine the car bon dioxide concentration in ambient air in real time. In addition, an object of the invention is to improve response to the condition of people in real time.
SUMMARY
The device and the use thereof according to the invention are characterized by the features set out in the claims.
The device comprises at least means for meas uring carbon dioxide concentration and determining a loss of cognitive performance, and a display device for presenting the abovementioned parameters.
DETAILED DESCRIPTION
A device for presenting the loss of cognitive performance comprises at least one measurement sensor continuously measuring carbon dioxide concentration in ambient air, a display device presenting the carbon dioxide concentration in ambient air and the loss of cognitive performance in relation to the carbon diox ide concentration in the air, and control software de termining the loss of cognitive performance in rela tion to the measured carbon dioxide concentration in the air.
In this connection, cognitive performance re fers to human cognitive functions generally known per se, e.g. functions related to perception, thought, memory, problem solving, decision making and/or learn ing, on which functions an increase in carbon dioxide in inhaled air has a weakening, such as a tiring, ef fect. The carbon dioxide concentration in air is in versely proportional to human performance.
The measurement sensor used may be any suita ble measurement sensor by which the carbon dioxide concentration in air may be measured.
In this connection, a display device refers to any display device or device having a display, which device has a suitable display for presenting figures and/or graphics on the basis of measurement and/or determination results. The display device used may be any suitable display device, e.g. a separate display, computer, personal digital assistant, tablet or a corresponding computer, a mobile telephone, smartphone or a corresponding device, or another suit able device. In one embodiment the display of the dis play device is a touchscreen or the like. In this connection, control software refers to any suitable software, program or the like, by which a loss of cognitive performance may be deter mined on the basis of measured measurement results. In one embodiment the display device comprises the control software. In one embodiment the present device compris es a separate device comprising the control software and connected to the measurement sensor and to the dis play device.
In one embodiment the control software is ar ranged to determine a change in the loss of cognitive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a zero level of the loss of cognitive performance is configured to correspond to a normal carbon dioxide concentration in air. In one embodiment the normal carbon dioxide concentration is defined to be 400 ppm. However, the normal carbon dioxide concentration in air can vary at different areas and sites, and it is expectable that in future the normal carbon dioxide concentration in air will increase, particularly in urban environments. If necessary, the normal carbon dioxide concentration may be modified easily in the device, e.g. by means of the display device and/or the control software.
In one embodiment the control software is ar ranged to determine a change in the loss of cognitive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a value 400 ppm of the carbon dioxide concentration in air is configured to correspond to a value 0 of the loss of cognitive performance, and a value 800 ppm of the carbon dioxide concentration in air is configured to correspond to a value -20% of the loss of cognitive performance. The values specified herein are based on currently known published research results. According to the current knowledge, good cognitive performance is achieved when the carbon dioxide concentration in air is 400 - 600 ppm.
In one embodiment the device, such as the con trol software thereof, is arranged to store measurement data of the carbon dioxide concentration in air and the losses of cognitive performance determined therefrom. In one embodiment the device comprises a storage por tion or device. In one embodiment the display device comprises a memory or a storage space. In one embodi ment the control software is arranged to store the data and keep in storage the data of a specific predeter mined time interval, e.g. of the time of 1 - 24 hours.
In one embodiment the display device is ar ranged to present stored carbon dioxide concentration and cognitive performance history data. In one embodi ment the stored data of the time of 1 - 24 hours are presentable. In one embodiment the display device is arranged to present the stored carbon dioxide concen tration and cognitive performance history data of a de sired time as a graph, e.g. curves, bars or other graphics.
In one embodiment a timeline of the stored carbon dioxide concentration and cognitive performance history data is selectable. In one embodiment the de vice or the display device thereof is provided with se lection elements, e.g. at least one controller, selec tion button, selection box, selection field, text field or the like, by which selecting may be performed. By the selection element a desired timeline for presenting the stored history data may be selected. Corresponding selection elements may also be provided for controlling other data. In one embodiment the display device has a touchscreen by means of which selecting may be per formed, values adjusted or the device controlled.
In one embodiment the device comprises an alarm device giving an alarm when a predetermined car bon dioxide concentration is exceeded in ambient air. In one embodiment the alarm and/or an alarm limit may be determined by means of the control software. In one embodiment the alarm limit may be controlled with a suitable selection element. The alarm may be given for one or more crossings over a carbon dioxide concentra tion limit. In one embodiment, at least one alarm limit is arranged to be a carbon dioxide concentration of 600 - 1000 ppm, e.g. 800 ppm. The alarm may be indicated in a suitable manner, e.g. by sound, color and/or other suitable manner.
In one embodiment, in a display area of carbon dioxide concentration and/or loss of cognitive perfor mance of the display device, desired color codes are arranged to illustrate a level of the respective val ues.
The device according to the invention may be used in a desired space, work space, office, meeting room, coworking space, school and/or other correspond ing space to determine the carbon dioxide concentra tion in air and/or the loss of cognitive performance, and in various combinations thereof.
With the device according to the invention, the carbon dioxide concentration may be measured con tinuously, and by means thereof the changes in carbon dioxide concentration in air and in cognitive perfor mance, particularly in the loss of cognitive perfor mance, may be presented in real time. Accordingly, thanks to the invention, the condition of people may be responded to faster and better in real time.
The device according to the invention may be produced easily and cost efficiently. The device is easy to use, and it may be used in practically all situations and conditions.
LIST OF THE FIGURES
Fig. 1 illustrates one device according to the invention for presenting a loss of cognitive per- formance in relation to carbon dioxide concentration in air.
EXAMPLES
The invention will now be described by means of a detailed example of an embodiment with reference to the accompanying figure.
A device for presenting the loss of cognitive performance as illustrated in Fig. 1 comprises one measurement sensor (2) continuously measuring carbon dioxide concentration in ambient air, and a display device (1) presenting carbon dioxide concentration (3) in ambient air and loss (4) of cognitive performance in relation to carbon dioxide concentration in the air on a display. In addition, the device comprises con trol software which is part of the display device and which determines the loss of cognitive performance in relation to measured carbon dioxide concentration in the air.
The display device is in the device of Fig. 1 a tablet, and the display of the display device is a touchscreen.
In the device of Fig. 1 the control software is arranged to determine a change in the loss of cogni tive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a value 400 ppm of the carbon dioxide concentra tion in air is configured to correspond to a value 0 of the loss of cognitive performance, and a value 800 ppm of the carbon dioxide concentration in air is config ured to correspond to a value -20% of the loss of cog nitive performance.
In the device of Fig. 1 the display device comprises a memory, and the control software is ar- ranged to store carbon dioxide concentration and cog nitive performance data and keep in storage the data of a predetermined time interval. In addition, the display device is arranged to present stored carbon dioxide concentration and cognitive performance histo ry data (5), e.g. of the time of 1 - 24 hours, in the form of graphics on the display.
The device of Fig. 1 may be provided with an alarm device giving an alarm when a predetermined car bon dioxide concentration is exceeded in ambient air. In addition, on the display of the display device, in a display area of the carbon dioxide concentration (3) and/or the loss (4) of cognitive performance, desired color codes may be arranged to illustrate a level of the respective values, e.g. red color to illustrate very high carbon dioxide concentration.
The measurement sensor, the display device and the control software used may be devices and software known per se, and they are not described in any more detail in this connection.
The device according to Fig. 1 may be used in any situation, e.g. indoors, to measure the carbon di oxide concentration in ambient air, to verify a change in the carbon dioxide concentration and thereby to present the loss of cognitive performance in real time.
The device according to the invention is suitable as different embodiments for use in a variety of applications.
The invention is not limited merely to the above-described examples, but many modifications are possible within the scope of the inventive idea de fined by the claims.

Claims

1. A device for presenting the loss of cogni tive performance, characterized in that the device comprises
- at least one measurement sensor continuously measuring carbon dioxide concentration in ambient air,
- a display device presenting the carbon di oxide concentration in ambient air and loss of cognitive performance in relation to the carbon dioxide concentration in air, and
- control software determining the loss of cognitive performance in relation to the measured carbon dioxide concentration in air.
2. The device according to claim 1, char acterized in that the control software is ar ranged to determine a change in the loss of cognitive performance in relation to a measured increase in the carbon dioxide concentration in air in such a way that a zero level of the loss of cognitive performance is configured to correspond to a normal carbon dioxide concentration in air.
3. The device according to claim 2, char acterized in that the normal carbon dioxide concentration is defined to be 400 ppm.
4. The device according to any one of claims 1 - 3, characterized in that the control soft ware is arranged to determine a change in the loss of cognitive performance in relation to a measured in crease in the carbon dioxide concentration in air in such a way that a value 400 ppm of the carbon dioxide concentration in air is configured to correspond to a value 0 of the loss of cognitive performance, and a value 800 ppm of the carbon dioxide concentration in air is configured to correspond to a value -20% of the loss of cognitive performance.
5. The device according to any one of claims 1
- 4, characterized in that the control soft ware is arranged to store measurement data of the car bon dioxide concentration in air and the losses of cog nitive performance determined therefrom.
6. The device according to any one of claims 1
- 5, characterized in that the display device is arranged to also present stored carbon dioxide con centration and cognitive performance history data.
7. The device according to any one of claims 1
- 6, characterized in that the display device is arranged to also present the stored carbon dioxide concentration and cognitive performance history data of a desired time as a graph.
8. The device according to any one of claims 1
- 7, characterized in that a timeline of the stored carbon dioxide concentration and cognitive per formance history data is selectable.
9. The device according to any one of claims 1 8, characterized in that the device is provided with selection elements by which a desired timeline for presenting the stored history data may be selected.
10. The device according to any one of claims 1 - 9, characterized in that the device com prises an alarm device giving an alarm when a predeter mined carbon dioxide concentration in exceeded in ambi ent air.
11. The device according to any one of claims 1 - 10, characterized in that in a display ar ea of carbon dioxide concentration and/or cognitive performance of the display device, desired color codes are arranged to illustrate a level of the respective values.
12. Use of the device according to any one of claims 1 - 11, characterized in that the de vice is used in a desired space, work space, office, meeting room, coworking space, school and/or other corresponding space to determine the carbon dioxide concentration in air and/or the loss of cognitive per formance.
EP21813789.1A 2020-05-25 2021-05-24 Device for presenting the loss of cognitive performance and use of the device Pending EP4157090A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20205522 2020-05-25
PCT/FI2021/050372 WO2021240058A1 (en) 2020-05-25 2021-05-24 Device for presenting the loss of cognitive performance and use of the device

Publications (1)

Publication Number Publication Date
EP4157090A1 true EP4157090A1 (en) 2023-04-05

Family

ID=78744145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21813789.1A Pending EP4157090A1 (en) 2020-05-25 2021-05-24 Device for presenting the loss of cognitive performance and use of the device

Country Status (2)

Country Link
EP (1) EP4157090A1 (en)
WO (1) WO2021240058A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8907803B2 (en) * 2012-01-09 2014-12-09 Intwine Energy Networked air quality monitoring
US9182751B1 (en) * 2013-07-16 2015-11-10 Alarm.Com Incorporated Carbon dioxide monitoring
WO2015102902A2 (en) * 2014-01-02 2015-07-09 Arizona Board Of Regents On Behalf Of Arizona State University Specific, reversible, and wide-dynamic range sensor for real time detection of carbon dioxide
KR101662066B1 (en) * 2015-05-27 2016-10-06 (주)아이피티브이코리아 Apparatus and Method for controlling Environment based on Condition of Air
CN110824118A (en) * 2019-12-13 2020-02-21 珠海横琴德润新能源科技有限公司 Carbon dioxide on-line monitoring system

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