KR20030059029A - Method of measuring and displaying air quality and handheld apparatus embodying the same - Google Patents

Abstract

PURPOSE: A measuring and displaying method of the components of air is provided to displays a measured result non-numerically and numerically by measuring the components of air and analyzing with standard of an environmental law. CONSTITUTION: A power switch(10) supplies the electricity from an electric power source. A sensor measures the components of air for a certain time by a control of a measurement start button. A microcomputer receives the measured value and displays the measured value numerically and non-numerically. An LED(Light Emitting Diode) display(40) displays the measured value numerically under the control of the microcomputer. At least one LED lamp(42) displays the measured value non-numerically under the control of the microcomputer. Thereby, the components of air before and after using an air conditioner is measured and displayed simply.

Description

Method for displaying air component measurement and handheld device embodying the same {Method of measuring and displaying air quality and handheld apparatus embodying the same}

The present invention relates to a technique for measuring and displaying an air component, and more particularly, to manufacture a handheld size and display a measurement value of an air component numerically on a light emitting device display, and simultaneously emit a measurement result according to a measurement grade. A method and apparatus for non-numerical display through a lamp.

As modern people spend more time living in confined spaces, air is contaminated by natural fibers such as indoor dust, microorganisms such as mites, clothes and blankets, and chemical fiber powder powder, and is suffering from various diseases. Conventionally, there has been an air cleaner that removes dust, etc. present in the indoor air using a dust collector and a filter, and this air cleaner removes contaminants by combining a filter, an activated carbon adsorbent, or a physical adsorbent with a dust collection function by alternating current or direct current voltage. It was. In addition to these air cleaners, air conditioners (air conditioners) such as air cleaners having an oxygen generating function and air conditioners having a function of ventilating indoor air are widely used.

In general, such air cleaners, oxygen generators, air conditioners and the like are not applied to the sensor or display parts that measure and display the quality of the air in itself, and accordingly to measure the air components before and after use of such air cleaners High-quality instruments used in laboratories and laboratories were used to measure air cleanliness such as air temperature, humidity, oxygen concentration, carbon dioxide and carbon monoxide concentration, dust concentration, and microbial contamination such as bacteria. Such advanced instruments can carry air measurements like other instruments, but are inconvenient because they are expensive, bulky, and heavy, and are not handheld types that can be carried or measured by individuals for long periods of time. It wasn't. In particular, there is no device for easily measuring and displaying the air purifier itself and the indoor air cleanliness before and after using the air purifier, which is applied to the "indoor air quality control system" of Korean Patent Application Publication No. 2003-16787 filed by the present applicant. The user could not easily recognize the air quality at the measurement site, and thus could not increase the user's satisfaction.

In addition, the measuring device for measuring the components of the air to measure the components of the air, such as the temperature, humidity, oxygen concentration, CO ₂ , CO, dust, tobacco smoke, mites and other microorganisms and odors of the measurement place to be measured Although the measurement value was numerically displayed on the display, it was compared with the environmental standard value to visually classify the measurement result such as normal, normal, abnormal, or high, medium, low, clean, normal, or pollution. Non-numerical display was not common. Therefore, users who are outside of environmental standards will find it difficult to judge the air quality easily.

An object of the present invention is to provide an air component measurement and display method for measuring air components and comparing the measurement results with non-numeric values based on environmental standards.

Another technical problem to be achieved by the present invention is to provide an air component measurement and display method which measures the air component and compares the result of the measurement comparison with the reference value of the environmental method, as well as displaying the measured value numerically. There is a purpose.

Another object of the present invention is to provide a handheld type air component measuring and displaying device which measures the air component and compares the result of the measurement with the reference value according to the environmental law.

Another technical problem to be solved by the present invention is to provide a handheld air component measuring and display device which measures the air component and compares the result of the measurement comparison with the reference value according to the environmental law, as well as displaying the measured value numerically. There is another purpose to provide it.

1 is a front view showing a handheld air component measuring display device according to a preferred embodiment of the present invention.

2 is a side view of the apparatus of FIG. 1.

3 is a plan view from above of the device of FIG. 1;

4 is a diagram schematically showing a circuit of the hand-held air component measuring display device of the present invention.

5 is a view for explaining the operation time of the sensor applied to the present invention.

6 is a flowchart for explaining an air component measurement display method of the present invention.

<Explanation of symbols for the main parts of the drawings>

10 ... power switch, 20 ... measurement start button

30 ... measuring time indicator lamp, 40 ... light emitting display

42 light emitting element, 52, 54, 56 light emitting lamp

53, 55, 57 ... measuring rating indicator, 70 ... battery case

75 battery, 80 sensor

82 amplifiers, 84 analog-to-digital converters

86.Microcomputer, 100 ... Air component measuring display

R1, R2, R3 ... resistor

In order to achieve the above technical problem, according to an aspect of the present invention, in the method for measuring the component in the air, the air component is measured for a predetermined time and compared with the reference value in the environmental law and the measurement comparison An air component measurement display method for displaying a result non-numerically is provided.

Preferably, the non-numerical display step includes a case indicating a measurement value larger than the reference value, a step indicating a case smaller than the reference value and larger than a set value set by a user or a factory, and a case indicating a case smaller than the set value and larger than zero. It is characterized by that.

Preferably, the measurement value is numerically displayed together with the non-numerical display step.

Preferably, the measurement results are displayed numerically by using a microcomputer to emit light emitting lamps, and the measured values are numerically displayed on the light emitting device display.

Preferably, the light emitting lamp is further provided with a grade mark for allowing a user to easily recognize a measurement result when the light emitting lamp is operated.

Preferably, a predetermined time display lamp for non-numerically displaying the predetermined time is provided.

According to another aspect of the present invention, there is provided an apparatus for displaying a component in air, comprising: a power switch for supplying electricity from a power source to a case of a handheld type; A sensor for measuring a component of air for a predetermined time by operating a measurement start button; A microcomputer that receives the measurement and controls the measurement to be displayed non-numericly; Provided is an air component measuring display device including at least one light emitting lamp that displays the measured value non-numerically under the control of the microcomputer.

Preferably, the micom stores reference values according to environmental laws, and displays grades of the measured values and the comparison results of the sensors.

Preferably, the method further comprises a light emitting device display in which the measured values of the sensors are numerically accumulated and displayed under the control of the microcomputer.

Preferably, the light emitting lamp is further provided with a grade mark for allowing a user to easily recognize a measurement result when the light emitting lamp is operated.

Preferably, a predetermined time display lamp is provided for non-numerically displaying the predetermined time when the measurement start button is operated.

Preferably, at least three light emitting lamps, the light emitting lamp indicating when the measured value is larger than the reference value, the light emitting lamp indicating when the value is smaller than the reference value and larger than the set value set by the user or the factory, and less than 0 than the set value It is characterized in that the light emitting lamp indicating a large case.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing a handheld type air component measuring display device according to a preferred embodiment of the present invention. 2 is a side view of the apparatus of FIG. 1. 3 is a plan view from above of the device of FIG. 1;

As shown in Figs. 1 to 3, the display apparatus 100 for measuring the components in the air according to the present invention includes the components in a handheld type case which can be used with one hand. The air component measurement display device 100 includes a sensor 80 for measuring a component of air for a predetermined time by operating a power switch 10 for supplying electricity from a power supply 75, a measurement start button 20, and A microcomputer (86 in FIG. 4) which receives the measured value of the sensor 80 and controls the displayed value to be displayed numerically and / or non-numerically, and a light emitting element for displaying the measured value numerically under the control of the microcomputer 86 At least one light emitting lamp 52, 54, 56 that displays non-numerically with the display 40 is included. In addition, the air component measurement display device 100 of the present invention is provided with a set time display lamp 30 for indicating that the sensor 80 detects the air component for a predetermined time, and also provides a non-numeric measurement result. The display apparatus further includes grade markers 53, 55, and 57 which allow the user to easily recognize the measurement result when the light emitting lamp is operated.

In addition, the micom 86 stores a reference value according to an environmental law, and displays the result of the comparison between the measured value of the sensor 80 and the reference value. The light emitting device display can configure the 7-segment LED device by the desired number of digits.

In addition, the at least three light emitting lamps, the light emitting lamp 56 showing the case where the measured value is larger than the reference value, the light emitting lamp 54 which is smaller than the reference value and larger than the set value set by the user or the factory, and the It is characterized in that the light emitting lamp (52) indicating a case smaller than the set value and larger than zero.

In addition, the power applied to the present invention, as shown in Figure 2 is a battery power source 75 is built in the internal battery case 70 is simple, in some cases by receiving an external DC power supply using an adapter or the like operation You can do that.

4 is a diagram schematically showing a circuit of the hand-held air component measuring display device of the present invention. As shown in FIG. 4, the measured values measured from the sensor 80 are amplified by the amplifier 82 and converted into digital values by the analog-to-digital converter 84 to the light emitting device display 40 under the control of the microcomputer 86. The measured values may be displayed cumulatively, and after being measured for a predetermined time, one of the light emitting lamps 52, 54, 56 is turned on according to the comparison result compared with the reference value stored in the microcomputer 86. Here, although the microcomputer 86 is shown to control only display elements, it actually plays a role of controlling the illustrated components. The control function is not shown.

The sensor applied to the present invention can be applied to any one of each component sensor to measure the air components such as temperature, humidity, oxygen concentration in the air, carbon dioxide, carbon monoxide, dust, tobacco smoke, mites, and odors. have. Specifically, the sensor 80 includes an oxygen sensor capable of stably and accurately measuring atmospheric concentration at a concentration in the range of 10 to 50%, a capacitive humidity sensor having a measuring range of 0 to 100% RH, and a thermistor. Or a temperature sensor that measures the temperature of indoor air quality with a resistance made of platinum, and a thermal linear sintered semiconductor sensor that can simultaneously detect nitrogen compounds such as sulfur compounds, hydrogen carbonate, ammonia and amines contained in indoor air quality pollutants. Odor sensor made of dust, dust (fine dust) generated in the room as a sensor for measuring the dust and light emitting element and the light receiving element, and a non-dispersive infrared absorption type sensor to measure the amount of carbon dioxide contained in the indoor air quality Any one or combination of carbon dioxide detection sensor and carbon monoxide detection sensor consisting of electrostatic potential electrolytic sensor In the present invention, the measurement result of the sensor 80 is not only numerically accumulated and displayed on the light emitting device display 40 under the control of the microcomputer 86, but also normal, normal, and abnormal in comparison with the environmental reference value. One of the light emitting lamps 52, 54, and 56 may be turned on and displayed non-numerically so that the grades of the measurement results, such as high, medium, low, or clean, normal, or dirty, may be visually distinguished.

5 is a view for explaining the operation time of the sensor 80 for measuring the air pollution degree applied to the present invention. In the preferred embodiment of the present invention, the measurement time of the sensor 80 is set to about 30 seconds, but the measurement setting time of the sensor may be designed to be set as a default at the time of manufacture according to a user's request, and the user may reset it at his convenience. It may be designed to further include a setting button (not shown) to the outside or inside of the device to do so. 5 is a view for explaining the operation of the sensor for measuring the air pollution it can be seen that the sensor has a lead time that does not operate immediately when the measurement start button 20 is pressed, dust, cigarette smoke, Sensor 80 for measuring microorganisms, etc. is composed of an optical sensor and can be seen to have a timing of measuring for 0.32ms and resting for 20ms for accurate operation of the optical sensor according to the flow of air, this is the type and use of the sensor It may be set differently depending on the.

Hereinafter, an air component measurement display method applied to the air component measurement display device 100 of the present invention will be described with reference to FIG. 6. In FIG. 6, the sensor will be described as being limited to a sensor for measuring air cleanliness. According to the Atmospheric Environment Conservation Act, dust standards in the air are required to be kept at an average of 150 µg / m 3 or less for 24 hours as a clean standard of the atmosphere. Therefore, in the preferred embodiment of the present invention, when three light emitting lamps (52, 54, 56) are used to display the measurement results non-numerically compared with the reference value of 150 µg / m 3 in the Air Quality Preservation Act, they are larger than the reference value. If the red LED 56 is turned on to display "contamination", and the cleanliness desired by the user is 80 µg / m 3, for example, the measurement value is 80 µg / m 3 or more and 150 µg / m 3 or less. The yellow LED 54 is turned on and the green LED 52 is turned on in order to display "clean" when it is less than 80 µg / m3. However, this is a design matter, and may be designed to be set to a default value at the time of manufacture or to be reset by a user after manufacturing.

FIG. 6 is a flowchart illustrating an air component measurement and display method according to the present invention. According to FIG. 6, it is checked whether a power switch 10 such as a power button is pressed (S60), and the power switch 10 is pressed. In operation S62, when the measurement start button 20 is pressed, the sensor 80 starts sensing under the control of the microcomputer 86 to detect the air freshness (S64). In operation S65, the measured values are accumulated and displayed on the light emitting device display 40. Then, the microcomputer 86 checks whether the set time has elapsed (S66), and if the set time has not elapsed, causes the sensor 80 to continue sensing, and after the set time has elapsed, the final detection value is displayed (S67). ). Then, the microcomputer 86 uses three light emitting lamps (52, 54, 56) which display the measurement results of the sensor in a non-numerical manner compared with the reference value of 150 µg / m 3 of the atmospheric environment preservation method (S68), When the measured value is larger than the reference value, the red LED 56 is turned on to display "contamination" (S70), and when the user desired cleanliness is 80 µg / m3 (S72), the measured value is 80 µg / m 3 or more and 150 µg. Turn on the yellow LED 54, which is displayed as " normal " when less than / m &lt; 3 &gt; (S74), and when it is less than 80 µg / m &lt; 3 &gt; (S76), turn on the green LED 52 to display &quot; clean &quot; S76).

The air component measurement display method and apparatus of the present invention have been described so far by using three light emitting lamps which display measurement values non-numerically, but the present invention is not limited to the above-described embodiment, but the present invention described in the following claims. Various modifications are possible by those skilled in the art within the spirit and scope of the invention.

As described above, the air component measuring display method and apparatus of the present invention is a handheld measuring instrument, which is manufactured to be easily held by a user and used, and also before and after the use of an air purifier such as an air purifier, an oxygen generator, or an air conditioner. By simply measuring and comparing the measurement result with the standard value of the Air Quality Preservation Act, and displaying the comparison result non-numericly, the user can easily recognize the air quality of the measurement place, thereby improving the user's satisfaction. In particular, the air component measuring display device of the present invention is manufactured inexpensively and compactly of a handheld type so that the measurement result is non-numerically recognized through a light emitting lamp so that a seller who sells an air purifier is carrying the air purifier to consumers. Particularly suitable for explaining performance and air pollution.

Claims (12)

A display method for measuring a component in air, wherein the air component is measured for a predetermined time and compared with a reference value according to the environmental method to display the measurement comparison result non-numerically. The method of claim 1, wherein the non-numerical display step includes a case in which a measurement value is greater than the reference value, a step in which a measurement value is smaller than the reference value and larger than a set value set by a user or a factory, and when smaller than the set value and greater than zero. Air component measurement display method characterized in that the step of representing. The method of measuring and measuring air component according to claim 1, wherein the measurement value is numerically displayed in addition to the non-numeric display step. The air according to any one of claims 1 to 3, wherein the measurement result is non-numerically displayed by emitting a light emitting lamp by a microcomputer, and the measurement value is numerically accumulated on the light emitting device display. How to display component measurements. 5. The method of claim 4, further comprising a rating label around the light emitting lamp to enable a user to easily recognize a measurement result when the light emitting lamp is operated. The air component measurement display method according to claim 5, further comprising a set time display step of non-numerically displaying the predetermined time. In the display device for measuring the components in the air, A power switch for supplying electricity from a power source in the handheld case; A sensor for measuring a component of air for a predetermined time by operating a measurement start button; A microcomputer that receives the measurement and controls the measurement to be displayed; And at least one light emitting lamp which displays the measured value non-numerically under the control of the microcomputer. The air component measurement and display device according to claim 7, wherein the micom stores reference values according to environmental laws, and displays the results of comparison with the measured values of the sensors. 8. The air component measurement and display device of claim 7, further comprising a light emitting device display for numerically accumulating and displaying measured values of the sensor under the control of a microcomputer. The light emitting lamp according to any one of claims 7 to 9, wherein the at least three light emitting lamps are used, and a light emitting lamp indicating a case where a measured value is larger than the reference value, a case smaller than the reference value and larger than a set value set by a user or a factory. And a light emitting lamp indicating a light emitting lamp which is smaller than the set value and larger than zero. The air component measuring display device of claim 10, further comprising a rating mark around the light emitting lamp to enable a user to easily recognize a measurement result when the light emitting lamp is operated. 12. An air component measurement and display device as claimed in claim 11, further comprising a set time display lamp for non-numerically displaying said predetermined time when the measurement start button is operated.