# US 11,442,003 B2 · Maintenance method of gas detecting device

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- Number: US 11,442,003 B2
- Document ID: US11442003B2
- Status: Granted
- Kind: B2
- Application number: 17/029,045
- Filed: 2020-09-23
- Published: 2022-03-24
- Granted: 2022-09-13
- Earliest claimed: 2020-09-23
- Assignees: Radiant Innovation Inc.
- Applicants: Radiant Innovation Inc.
- Inventors: Shao-Yun Yu; Tseng-Lung Lin; Yu-Chien Huang; Yu-Tai Sung
- Web page: https://patentgrep.com/patent/US11442003B2

## CPC

- G01N 15/06: Investigating concentration of particle suspensions (by weighing G01N5/00; investigating sedimentation of particle suspensions G01N15/04; investigating individual particles G01N15/10)
- G01D 11/245: {Housings for sensors}
- G01N 15/0205: by optical means
- G01N 21/15: Preventing contamination of the components of the optical system or obstruction of the light path
- G01N 15/075: by optical means
- G01N 2015/0046: {in gas, e.g. smoke}
- G01N 2021/0106: {General arrangement of respective parts}
- G01N 2021/155: {Monitoring cleanness of window, lens, or other parts}
- G01N 2021/157: {Monitoring by optical means}
- G01N 2201/022: Casings
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR

## Abstract

A maintenance method of a gas detecting device includes the following steps: providing the gas detecting device that includes a shell component, a sensing component, a dust blocking element, and a detecting area, the sensing component including a sensor, a reference light source, and a processor, and the dust blocking element including a cover; the reference light source generating a reference beam projecting toward the cover and the detecting area, and the reference beam generating a feedback beam projecting toward the cover and the sensor through being reflected by a part of the shell component positioned at the detecting area; the sensor receiving the feedback beam to generate a measured information; and the processor comparing the measured information to an initial information in the processor, so as to obtain a pollution degree information of the cover.

## Claims

### Claim 1

A maintenance method of a gas detecting device, comprising:
providing the gas detecting device, the gas detecting device including a shell component, a sensing component, a dust blocking element, and a detecting area, the sensing component and the dust blocking element being disposed in the shell component, and the sensing component and the dust blocking element being disposed corresponding to the detecting area, wherein the sensing component includes a sensor, a reference light source, and a processor, the processor is electrically connected to the sensor, the dust blocking element includes a cover, and the cover is light permeable;
generating a reference beam projecting toward the cover and the detecting area through the reference light source, the reference beam generating a feedback beam projecting toward the cover and the sensor through being reflected by a part of the shell component positioned at the detecting area;
receiving the feedback beam through the sensor to generate a measured information; and
comparing the measured information to an initial information stored in the processor through the processor, so as to obtain a pollution degree information of the cover.

### Claim 2 (depends on 1)

The maintenance method according to claim 1, wherein the sensing component further includes a signal transmitting element, and the processor is electrically connected to the signal transmitting element.

### Claim 3 (depends on 2)

The maintenance method according to claim 2, wherein after comparing the measured information to the initial information in the processor through the processor, so as to obtain the pollution degree information of the cover, the method further comprises: transmitting the pollution degree information of the cover to an electronic device through the signal transmitting element.

### Claim 4 (depends on 2)

The maintenance method according to claim 2, wherein after comparing the measured information to the initial information in the processor through the processor, so as to obtain the pollution degree information of the cover, the method further comprises: determining whether or not the pollution degree information of the cover exceeds a predetermined threshold, and when the pollution degree information of the cover does exceed the predetermined threshold, transmitting the pollution degree information of the cover to an electronic device through the signal transmitting element.

### Claim 5 (depends on 4)

The maintenance method according to claim 4, wherein the measured information is a measured current value of the energy of the feedback beam measured by the sensor and the initial information is an initial current value that is stored in the processor.

### Claim 6 (depends on 5)

The maintenance method according to claim 5, wherein when determining whether or not the pollution degree information of the cover exceeds the predetermined threshold, the processor is utilized to determine whether a difference between an initial current value and the measured current value exceeds the predetermined threshold.

### Claim 7 (depends on 2)

The maintenance method according to claim 2, wherein the sensing component further includes a substrate, and the sensor, the reference light source, the processor, and the signal transmitting element are disposed on the substrate; and wherein a vertical projection of the cover on the substrate and a vertical projection of the sensor on the substrate at least partially overlap with each other, and the vertical projection of the cover on the substrate and a vertical projection of the reference light source on the substrate at least partially overlap with each other.

### Claim 8 (depends on 2)

The maintenance method according to claim 2, wherein the step of comparing the measured information to the initial information in the processor through the processor, so as to obtain the pollution degree information of the cover further includes: storing the pollution degree information of the cover in the processor.

### Claim 9 (depends on 1)

The maintenance method according to claim 1, wherein the reference beam passes through the cover and is projected onto the part of the shell component positioned at the detecting area, and the feedback beam passes through the cover and is projected onto the sensor.

### Claim 10 (depends on 1)

The maintenance method according to claim 1, wherein the measured information is a measured current value of the energy of the feedback beam measured by the sensor and the initial information is an initial current value that is stored in the processor.