GAS DETECTING DEVICE AND GAS DETECTING METHOD USING THE SAME

• US 20170038355A1
• Filed: 08/06/2015
• Published: 02/09/2017
• Est. Priority Date: 08/06/2015
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: FAN, Fu-Cheng
• Granted Patent: US 10,520,490 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01N 33/0073 Control unit therefor
• CPC Class Codes: G01N 33/497 of gaseous biological material, e.g. breath
• CPC Class Codes: G01N 33/4972 Determining alcohol content for vehicle safety devices B60K28/06

Abstract

A gas detecting device and a gas detecting method using the same are provided. The gas detecting device includes a casing, a gas detecting element, a first value, a second value and a forced exhausting element. The casing has a cavity, an inlet and an outlet. The gas detector is disposed within the cavity. The first value is for selectively opening or closing the inlet. The second value is for selectively opening or closing the outlet. The forced exhausting element is disposed within the outlet.

Claims

1. A gas detecting device, comprising:

a casing having a cavity, an inlet and an outlet;

a gas detector disposed within the cavity;

a first value for selectively opening or closing the inlet;

a second value for selectively opening or closing the outlet; and

a forced exhausting element disposed within the outlet.

2. The gas detecting device according to claim 1, further comprising:

a heater disposed within the cavity.

3. The gas detecting device according to claim 1, further comprising:

a filtering element disposed within the inlet.

4. The gas detecting device according to claim 3, wherein the filtering element is a biological filtration membrane.

5. The gas detecting device according to claim 1, further comprising:

a gas collecting element for collecting a to-be-tested gas.

6. The gas detecting device according to claim 5, further comprising:

a gas pipe connected to an opening of the gas collecting element; and

a fixing element for fixing the gas pipe and the gas collecting element.

7. The gas detecting device according to claim 6, further comprising:

a filtering element disposed within the gas pipe.

8. The gas detecting device according to claim 2, further comprising:

a controller configured to;

control at least one of the heater and the forced exhausting element to operate according to a signal from the gas detector.

9. The gas detecting device according to claim 8, wherein the controller is further configured to:

determine whether the signal from the gas detector is higher than an upper limit;

control the forced exhausting element to operate to reduce a temperature of the cavity if the signal from the gas detector is higher than the upper limit;

determine whether the signal from the gas detector is lower than a lower limit; and

control the heater to increase a temperature of the cavity if the signal from the gas detector is lower than the lower limit,.

10. The gas detecting device according to claim 9, wherein the controller is further configured to:

determine whether the time for which the signal from the gas detector falls between the upper limit and the lower limit is over a pre-determined time interval; and

send an indicating signal if the time for which the signal of the gas detector falls between the upper limit and the lower limit is over the pre-determined time interval.

11. The gas detecting device according to claim 1, further comprising:

a controller configured to;

control the forced exhausting element to inhale a to-be-tested gas into the cavity.

12. A gas detecting method, comprising:

providing a gas detecting device, wherein the gas detecting device comprises a casing, a gas detector, a first value, a second value and a forced exhausting element, the casing has a cavity, an inlet and an outlet, the gas detector is disposed within the cavity, the first value is for selectively opening or closing the inlet, the second value is for selectively opening or closing the outlet, and the forced exhausting element is disposed within the outlet;

inhaling a to-be-tested gas into the cavity of the gas detecting device by the forced exhausting element;

controlling the first value to close the inlet;

controlling the second value to close the outlet; and

detecting the to-be-tested gas by the gas detector.

13. The gas detecting method according to claim 12, further comprising:

heating the cavity.

14. The gas detecting method according to claim 12, wherein the gas detecting device further comprises a heater, and the gas detecting method further comprises:

controlling at least one of the heater and the forced exhausting element to operate according to a signal from the gas detector.

15. The gas detecting method according to claim 14, wherein the step of controlling at least one of the heater and the forced exhausting element

to operate according to the signal of the gas detector comprises:

determining whether a signal from the gas detector is higher than an upper limit;

controlling the forced exhausting element to reduce a temperature of the cavity if the signal from the gas detector is higher than the upper limit;

determining whether the signal from the gas detector is lower than a lower limit; and

controlling the heater to increase a temperature of the cavity if the signal from the gas detector is lower than the lower limit.

16. The gas detecting method according to claim 15, further comprising:

determining whether the time for which the signal from the gas detector falls between the upper limit and the lower limit is over a pre-determined time interval; and

sending an indicating signal if the time for which the signal from the gas detector falls between the upper limit and the lower limit is over the pre-determined time interval.

17. The gas detecting method according to claim 12, further comprising:

controlling the forced exhausting element to inhale a to-be-tested gas into the cavity.