Gas sensing device

Abstract

The present invention relates to a gas sensing device comprising: a gas sensing part for outputting a gas detection result; and a correction control part for changing the value outputted from the gas sensing part to a reference value when the output value is lower than the reference value.

Claims

1. A gas sensing device comprising: a gas sensing part configured to sense for gas and output an output voltage based on the sensed gas; and a control part that receives the output voltage from the gas sensing part and configured to output a result value based on the output voltage, wherein the control part compares the output voltage to a reference voltage, and when the control part determines that the output voltage from the gas sensing part is less than the reference voltage, the control part changes a display of the result value by providing the reference voltage as the result value, and when the control part determines that the output voltage from the gas sensing part is greater than or equal to the reference voltage, the control part controls the display to output the output voltage received from the gas sensing part as the result value.

2. The gas sensing device according to claim 1, wherein when the control part determines that the output voltage from the gas sensing part is less than the reference voltage, the control part constantly changes the display by constantly changing the result value from the output voltage to the reference voltage.

3. The gas sensing device according to claim 1, further comprising a display for displaying gas detection information, wherein when the control part determines that the output voltage from the gas sensing part is less than the reference voltage, the control part controls the display to display the result value based on the reference voltage.

4. The gas sensing device according to claim 3, wherein when the control part determines that the output voltage from the gas sensing part is greater than or equal to the reference voltage, the control part controls the display to display the result value based on the output voltage from the gas sensing part.

5. The gas sensing device according to claim 3, wherein the display provides additional information corresponding to the displayed result value.

6. The gas sensing device according to claim 5, wherein the additional information is image information.

7. The gas sensing device according to claim 6, wherein when the result value is the reference voltage, the additional information indicates that gas is not present, when the result value is between the reference voltage and a first prescribed voltage, the additional information indicates that gas is present within an acceptable level, and when the result value is greater than the first prescribed voltage, the additional information indicates a warning for presence of gas.

8. The gas sensing device according to claim 7, wherein the first prescribed voltage is 1.0 V.

9. The gas sensing device according to claim 5, further comprising a speaker for providing sound information corresponding to the displayed result value.

10. The gas sensing device according to claim 1, wherein the reference voltage corresponds to an output voltage level of the gas sensing part associated with a state in which gas is not detected.

11. The gas sensing device according to claim 1, wherein the gas sensing part is affected by humidity and temperature such that the output voltage has a prescribed error value.

12. The gas sensing device according to claim 11, wherein the reference voltage is greater than the prescribed error value.

13. The gas sensing device according to claim 12, wherein the prescribed error value is 0.1 V to +0.1 V and the reference voltage is 0.5 V.

14. A gas sensing device comprising: a gas sensing part configured to sense for presence of gas and output an output voltage based on sensed concentration of gas; a control part that receives the output voltage from the gas sensing part and configured to output a result value based on the output voltage; and a display configured to display gas detection information including the result value, wherein the control part compares the output voltage to a reference voltage, and when the control part determines that the output voltage from the gas sensing part is less than the reference voltage, the control part changes the display of the result value by displaying the reference voltage as the result value, and when the control part determines that the output voltage from the gas sensing part is greater than or equal to the reference voltage, the control part controls the display to display the output voltage received from the gas sensing part as the result value, wherein the gas sensing part is affected by humidity and temperature such that the output voltage has a prescribed error value, and wherein the reference voltage is greater than the prescribed error value.

Description

DESCRIPTION OF DRAWINGS

(1) Embodiments will be described in detail with reference to the following drawings in which like reference numerals refer to like elements, and wherein:

(2) FIG. 1 is a configuration diagram of a gas sensing device according to one embodiment of the present disclosure;

(3) FIGS. 2 to 3 are views illustrating a method of displaying a voltage value of the gas sensing device according to one embodiment of the present disclosure;

(4) FIGS. 4 to 5 are views for describing an information providing method of the gas sensing device according to one embodiment of the present disclosure; and

(5) FIG. 6 is a flowchart for describing an operation method of the gas sensing device according to one embodiment of the present disclosure.

MODES OF THE INVENTION

(6) Hereinafter, exemplary embodiments of the present disclosure will be described with reference to the accompanying drawings. Regarding the reference numerals assigned to the elements in the drawings, it should be noted that the same elements may be designated by the same reference numerals, wherever possible, even though they are shown in different drawings. If it is considered that the specific description of the related and noticed functions or structures may obscure the gist of the present invention, the specific description will be omitted. In addition, a thickness of a line, a size of a component and the like, which are shown in the drawings, will be somewhat exaggerated to help clearness of a description and understanding thereof.

(7) Also, in the description of embodiments, terms such as first, second, A, B, (a), (b) or the like may be used herein when describing components of the present disclosure. Each of these terminologies is not used to define an essence, order or sequence of a corresponding component but used merely to distinguish the corresponding component from other component(s). It should be noted that if it is described in the specification that one component is connected, coupled or joined to another component, the former may be directly connected, coupled or joined to the latter or connected, coupled or joined to the latter via another component.

(8) FIG. 1 is a configuration diagram of a gas sensing device according to one embodiment of the present disclosure, and FIGS. 2 to 3 are views illustrating a method of displaying a voltage value of the gas sensing device according to one embodiment of the present disclosure.

(9) With reference to FIGS. 1 to 3, a configuration of a gas sensing device 100 and method of displaying a voltage value according to one embodiment of the present disclosure will be described.

(10) As shown in FIG. the gas sensing device 100 according to one embodiment of the present disclosure includes a gas sensing part 110 and a correction control part 120, and it may be configured with further including a display 130.

(11) The gas sensing part 110 detects gas and outputs a result of sensing the gas.

(12) At this time, the output value may be a voltage value, to this end, the gas sensing part 110 according to one embodiment of the present disclosure includes a resistance and it may be configured to output a voltage through the resistance.

(13) The correction control part 120 changes the value output from the gas sensing part 110 to a reference value.

(14) More specifically, when the value output from the gas sensing part 110 is lower than the reference value, the correction control part 120 may change the output value to the reference value.

(15) That is, the correction control part 120 may constantly correct the value output from the gas sensing part 110 to the reference value.

(16) The display 130 displays gas sensing information.

(17) At this time, the correction control part 120 may control the display 130 to provide information corresponding to a step corresponding to the value output from the gas sensing part 110 through the display 130, and when the value output from the gas sensing part 110 is lower than the reference value, it controls to display the reference value through the display 130.

(18) That is, when the voltage of the gas sensing part 110 is output, the gas sensing part 110 may respond sensitively to minute environmental changes such as temperature or humidity, and an error may occur in the output value. Therefore, when the value output from the gas sensing part 110 is lower than the reference value, the correction control part 120 according to one embodiment of the present disclosure corrects the value output from the gas sensing part 110 and corrects to the same value as the reference value so as to be displayed through the display 130.

(19) For example, in the case in which the value output by the gas sensing part 110 is 0.3 V in a normal gas-free environment, an error of a voltage value of 0.1 V to +0.1 V may occur depending on the influence of temperature or humidity. Therefore, a user may misunderstand that the generated error of 0.1 V to +0.1 V is caused by the detection of gas.

(20) Therefore, according to one embodiment of the present disclosure, as shown in FIG. 2, in the case in which the voltage output from the gas sensing part 110 is 0.3 V, which is lower than the reference value of 0.5 V, as shown in the FIG. 3, the correction control part 120 displays the voltage output from the gas sensing part 110 fixed at 0.5 V through the display 130, and in the case in which the voltage output from the gas sensing part 110 is higher than 0.5 V, the correction control part 120 displays the voltage output from the gas sensing part 110 through the display 130 as it is.

(21) Accordingly, when the reference value of 0.5 V is displayed through the display 130, the user may determine that gas is not detected, and in the case of a voltage equal to or higher than the reference value of 0.5 V (e.g. 0.6 V), since the voltage exceeding the reference value is displayed as it is, the user may correctly determine whether the gas is detected.

(22) TABLE-US-00001 TABLE 1 Range Display output value Status information Less than 0.5 V 0.5 V Good 0.5 V to 1.0 V Output corresponding Normal voltage value 1.0 V or more Output corresponding Bad voltage value

(23) Table 1 summarizes that the display method of the display 130 according to the range of the voltage value output from the gas sensing part 110 according to one embodiment of the present disclosure.

(24) As shown in Table 1, in the case in which the voltage value output from the gas sensing part 110 is less than 0.5 V, the display 130 may display 0.5 V and display Good as status information.

(25) Also in the case in which the voltage output from the gas sensing part 110 is 0.5 V to 1.0 V, the display 130 displays the corresponding voltage output from the gas sensing part 110 as it is, and it may display Normal as status information, and in the case in which the voltage value output from the gas sensing part 110 exceeds 1.0 V, the display 130 displays the corresponding voltage output from the gas sensing part 110 as it is, and it may display Bad as status information.

(26) In addition, the gas sensing device 100 according to one embodiment of the present disclosure may further include a speaker 140, and sound information corresponding to the voltage value output from the gas sensing part 110 may be provided through the speaker 140 so that the user may more easily recognize a quality of air or a degree of gas contamination.

(27) FIGS. 4 to 5 are views for describing an information providing method of the gas sensing device according to one embodiment of the present disclosure.

(28) As shown in FIGS. 4 to 5, the gas sensing device 100 according to one embodiment of the present disclosure may be configured such that the display 130 may provide additional information corresponding to a corresponding voltage output from the gas sensing part 110.

(29) That is, in the case in which the gas sensing device 100 according to one embodiment of the present disclosure detects gas, the type and concentration of the detected gas may be displayed.

(30) Also, the gas sensing device 100 displays in image so as to more easily recognize information corresponding to the type and concentration of the detected gas, and it may provide sound information corresponding to the type and concentration of the detected gas through the speaker 140.

(31) Meanwhile, the gas sensing device 100 according to one embodiment of the present disclosure may be configured as a portable terminal.

(32) FIG. 6 is a flowchart for describing an operation method of the gas sensing device according to one embodiment of the present disclosure.

(33) With reference to FIG. 6, an operation method of the gas sensing device 100 according to one embodiment of the present disclosure will be described.

(34) First, when the gas sensing part 110 detects gas, it outputs a result of detecting the gas (S610).

(35) To this end, the gas sensing part 110 according to one embodiment of the present disclosure includes resistance and it may be configured to output the detected result as a voltage value through the resistance.

(36) Thereafter, the correction control part 120 determines whether the value output from the gas sensing part 110 is lower than a reference value or not (S620).

(37) As a result of the determination, when a value output from the gas sensing part 110 is lower than a reference value, the correction control part 120 changes and corrects the value to be the reference value (S630).

(38) That is, when the voltage of the gas sensing part 110 is outputted, an error may occur in the output voltage since the gas sensing part 110 sensitively responses to a minute environmental change such as temperature or humidity. Therefore, according to one embodiment of the present disclosure, a voltage value output from the gas sensing part 110 is lower than a reference value, the correction control part 120 corrects the voltage value output from the gas sensing part 110 to the same value as the reference value.

(39) Thereafter, the correction control part 120 controls so as to display the corrected output value through the display 130 as described above (S640).

(40) Meanwhile, as the result of determination, when the value output from the gas sensing part 110 is higher than the reference value, the correction control part 120 may control so as to display the value output from the gas sensing part 110 through the display 130.

(41) In addition, the gas sensing device 100 according to one embodiment of the present disclosure may provide additional information corresponding to a corresponding voltage output from the gas sensing part 110, and more specifically, when gas is detected, the type and concentration of the detected gas may be displayed.

(42) In addition, the gas sensing device 100 displays in image so as to more easily recognize the information corresponding to the type and concentration of the detected gas, and it may provide sound information corresponding to the type and concentration of the detected gas through the speaker 140.

(43) Therefore, according to the embodiment of the present disclosure, by correcting the output value of a gas sensor which is sensitive to the external environment such as temperature and humidity, the user may more accurately determine whether the gas is detected or not and not be mistaken.

(44) Also, according to the embodiment of the present disclosure, the user may more easily recognize the quality of air or the degree of gas contamination.

(45) In the foregoing detailed description of the present disclosure, specific examples have been described. However, various modifications are possible within the scope of the present disclosure. The technical spirit of the present disclosure should not be limited to the described embodiment of the present disclosure, but should be determined by not only the scope of the appended claims but also the equivalents to the claims.

EXPLANATION OF SYMBOLS

(46) 100: Gas sensing device

(47) 110: Gas sensing part

(48) 120: Correction control part

(49) 130: Display

(50) 140: Speaker