WO2018153015A1

WO2018153015A1 - Device and method for issuing an alarm when indoor air dust content exceeds standard

Info

Publication number: WO2018153015A1
Application number: PCT/CN2017/093987
Authority: WO
Inventors: 张贯京; 葛新科; 高伟明; 张红治
Original assignee: 深圳市易特科信息技术有限公司
Priority date: 2017-02-23
Filing date: 2017-07-22
Publication date: 2018-08-30
Also published as: CN106872323A

Abstract

A device and method for issuing an alarm when the indoor air dust content exceeds a standard, the device comprising: a control equipment, an infrared photosensitive drum, a light-emitting equipment, and a reflector. The method comprises the following steps: within a control equipment, presetting a light-emitting period of a light-emitting equipment; the control equipment sending a light-emitting instruction to the light-emitting equipment by means of a communication port during each light-emitting period such that each infrared photodiode begins to generate infrared light; an infrared photosensitive drum receiving infrared light which is scattered by dust in the air and infrared light which is reflected by a reflector, wherein a reflective surface of the reflector is an arc surface or a concave surface; a photoelectric converter, which is internally provided in the infrared photosensitive drum, converting the infrared light which is received within the infrared photosensitive drum into a voltage signal; the control equipment detecting, according to the voltage signal, whether the indoor air dust content exceeds a standard; when the indoor air dust content exceeds the standard, the control equipment controlling an alarm instrument to generate an alarm. The present invention improves the accuracy of monitoring dust content in the air, and facilitates the real-time monitoring of air quality in a home-environment.

Description

Indoor air dust content exceeding standard alarm device and method

[0001] The present invention relates to the field of air quality monitoring technologies, and in particular, to an indoor air dust content exceeding alarm device and method.

Background technique

[0002] In recent years, people have been paying more and more attention to air quality and air pollution problems. In the face of air dust and smog, the national government has issued a series of policies to control air pollution in the environment. There are also a large number of air purifiers on the market for people to improve the air quality of the local environment. However, most air purifiers only have purification skills and lack intelligent monitoring and control functions. At present, for the measurement of air dust concentration, the dust sampler and the direct-reading dust detector are mainly used, which utilizes the principle of the filter weighing method: a certain volume of dust-containing air is extracted, and the dust is trapped on the filter membrane, according to the filter membrane. The added dust quality, and then use the formula to calculate the dust mass concentration per unit volume of air, which has the trouble of operation, the dust concentration value can be calculated by calculation, and the measurement result is inaccurate, and the number of measurements is limited, and the air cannot be used. Continuous monitoring of dust can only be used as a conventional portable dust meter, which is not convenient for monitoring the use of air quality as a home.

technical problem

[0003] The main object of the present invention is to provide an indoor air dust content exceeding the standard alarm device and method, which can improve the accuracy of monitoring the dust content in the air, and can monitor the home air when the air dust content exceeds the standard. quality.

Problem solution

Technical solution

[0004] In order to achieve the above object, the present invention provides an indoor air dust content exceeding standard alarm device, which includes a first bracket, a second bracket, a control device, an infrared photosensitive tube, a light emitting device, and a mirror, wherein

[0005] The control device is fixed on the first bracket by a fixing portion, one end of the infrared photosensitive tube is fixed on the fixing portion, and the other end of the infrared photosensitive tube is fixed on the left side of the second bracket and partially Stretch into the second Inside the bracket;

[0006] The infrared photosensitive drum has a photoelectric converter built therein, and the photoelectric converter is connected to the control device through a built-in signal line;

[0007] The light emitting device is disposed at an inner top of a second bracket, and the light emitting device includes a plurality of infrared photodiodes

For generating infrared light in each illumination period;

[0008] The mirror is disposed on the inner side of the right side of the second bracket, and is configured to reflect infrared light scattered by dust in the air onto the infrared photosensitive tube, and the reflecting surface of the mirror is a curved surface or a concave surface;

[0009] The infrared photosensitive tube is configured to receive infrared light scattered by dust in the air and infrared light reflected by the mirror; the photoelectric converter is configured to convert the received infrared light into a voltage signal, and the voltage signal is Transmission to the control device via a built-in signal line;

[0010] The control device includes an alarm device and a comparison circuit, wherein the comparison circuit is configured to compare a voltage value of the voltage signal with a preset voltage value to detect whether a dust content of the indoor air exceeds a standard, and the alarm device is used indoors. If the dust content of the air exceeds the standard, an alarm is generated.

[0011] Preferably, the control device is further configured to: when the indoor air dust content does not exceed the standard, after the illumination period arrives, send a lighting instruction through the communication port to the illumination device to activate each infrared photodiode to generate infrared Light.

[0012] Preferably, the illuminating device further comprises a numerical control power source for providing the infrared photodiode with electric energy for emitting infrared light, and controlling each infrared photodiode in each illuminating period according to the illuminating command generated by the control device. Infrared light is emitted.

[0013] Preferably, the plurality of infrared photodiodes are arranged in a line in the illuminating device for generating infrared light in each illuminating period.

[0014] Preferably, one end of the infrared photosensitive tube is fixed on the fixing portion by a fastening bracket, and the fastening frame includes a fastening bolt and a fastening nut matched with the fastening bolt.

[0015] The present invention also provides an indoor air dust content exceeding standard alarm method, which is applied to an indoor air dust content exceeding standard alarm device, and the indoor air dust content exceeding standard alarm device comprises a control device, an infrared photosensitive tube, a illuminating device and a mirror The indoor air dust content exceeding standard alarm method includes the following steps: [0016] setting an illumination period of the illumination device in the control device in advance;

[0017] the control device sends a lighting command through the communication port to the optical device during each lighting period Each of the infrared photodiodes generates infrared light, and the illuminating device includes a plurality of infrared photodiodes

[0018] The infrared photosensitive tube receives infrared light scattered by dust in the air and infrared light reflected by the mirror, and the reflecting surface of the mirror is a curved surface or a concave surface;

[0019] the photoelectric converter built in the infrared photosensitive tube converts the infrared light received in the infrared photosensitive tube into a voltage signal;

[0020] the control device compares the voltage value of the voltage signal with the preset voltage value to detect whether the air dust content in the room exceeds the standard;

[0021] When the dust content of the indoor air exceeds the standard, the control device controls the alarm to generate an alarm.

[0022] Preferably, the indoor air dust content exceeding the standard alarm method further comprises the steps of:

[0023] When it is detected that the dust content of the indoor air does not exceed the standard, the control device arrives at the lighting period, and sends a lighting command through the communication port to the lighting device to activate each of the infrared photodiodes to generate infrared light.

[0024] Preferably, the illuminating device further comprises a numerical control power supply, wherein the digital control power supply provides the infrared photodiode with electric energy for emitting infrared light, and controls each infrared photodiode according to the illuminating command generated by the control device. Infrared light is emitted during the illumination period.

Advantageous effects of the invention

Beneficial effect

[0025] Compared with the prior art, the indoor air dust content exceeding standard alarm device and method of the present invention uses a control device to automatically control an infrared photodiode in the illuminating device to emit infrared light, and to scatter infrared rays in the air through a mirror. Light is reflected into the infrared photosensitive cylinder, which improves the accuracy of monitoring airborne dust. In addition, the control device sends a control command to activate the air cleaner installed indoors to dedust and purify the indoor air, thereby improving the indoor air quality, preventing people from inhaling a large amount of dust particles, contributing to people's health, and having convenient home. The advantage of monitoring air quality.

Brief description of the drawing

DRAWINGS

[0026] The description of the paragraphs is entered here by way of a drawing. BEST MODE FOR CARRYING OUT THE INVENTION

BEST MODE FOR CARRYING OUT THE INVENTION

[0027] The paragraphs describing the best mode of the invention are entered here.

Industrial applicability

[0028] Compared with the prior art, the indoor air dust content exceeding standard alarm device and method of the present invention uses a control device to automatically control an infrared photodiode in the illuminating device to emit infrared light, and to scatter infrared rays in the air through a mirror. Light is reflected into the infrared photosensitive cylinder, which improves the accuracy of monitoring airborne dust. In addition, the control device sends a control command to activate the air cleaner installed indoors to dedust and purify the indoor air, thereby improving the indoor air quality, preventing people from inhaling a large amount of dust particles, contributing to people's health, and having convenient home. The advantage of monitoring air quality.

Claims

Claim

[Claim 1] An indoor air dust content exceeding standard alarm device, comprising a first bracket and a second bracket, wherein the indoor air dust content exceeding standard alarm device further comprises a control device, an infrared light-sensitive tube, a light-emitting device, and a reflection a mirror, wherein: the control device is fixed on the first bracket by a fixing portion, one end of the infrared photosensitive tube is fixed on the fixing portion, and the other end of the infrared photosensitive tube is fixed on the left side of the second bracket Partially extending into the second bracket; the infrared photosensitive tube has a photoelectric converter built therein, and the photoelectric converter is connected to the control device through a built-in signal line; the light emitting device is disposed at an inner top of the second bracket, and the light is emitted The device comprises a plurality of infrared photodiodes for generating infrared light in each illumination period; the mirror is disposed on the inner side of the right side of the second bracket for reflecting infrared light scattered by dust in the air to the infrared sensitization a reflective surface of the mirror is a curved surface or a concave surface; the infrared photosensitive tube is configured to receive dust in the air Infrared light and infrared light reflected by the mirror; the photoelectric converter is configured to convert the received infrared light into a voltage signal, and transmit the voltage signal to the control device through a built-in signal line; The device includes an alarm device and a comparison circuit, wherein the comparison circuit is configured to compare the voltage value of the voltage signal with a preset voltage value to detect whether the dust content of the indoor air exceeds the standard, and the alarm device is used when the dust content of the indoor air exceeds the standard. An alarm is generated.

[Claim 2] The indoor air dust content exceeding standard alarm device according to claim 1, wherein the control device is further configured to: when the indoor air dust content does not exceed the standard, after the illuminating period arrives, pass the The communication port sends a lighting command to the lighting device to activate each of the infrared photodiodes to generate infrared light.

[Claim 3] The indoor air dust content exceeding standard alarm device according to claim 1, wherein the illuminating device further comprises a numerical control power source for providing the infrared photodiode with electric energy for emitting infrared light, and according to The illumination command generated by the control device controls each of the infrared photodiodes to emit infrared light during each illumination period.

[Claim 4] The indoor air dust content exceeding standard alarm device according to claim 1, wherein the plurality of infrared photodiodes are arranged in a line in the illuminating device for each illuminating period Generate infrared light.

[Claim 5] The indoor air dust content exceeding standard alarm device according to any one of claims 1 to 4, wherein one end of the infrared photosensitive tube is fixed to the fixing portion by a fastening frame, the fastening The frame includes fastening bolts and fastening nuts that are matched with the fastening bolts.

[Claim 6] An indoor air dust content exceeding standard warning method is applied to an indoor air dust content exceeding standard alarm device, and the indoor air dust content exceeding standard alarm device comprises a control device, an infrared photosensitive tube, a illuminating device and a mirror, and the characteristics thereof The method for detecting an indoor air dust content exceeding the standard includes the steps of: setting an illumination period of the illumination device in the control device in advance; the control device transmitting a illumination command through the communication port to each of the illumination cycles The optical device activates each of the infrared photodiodes to generate infrared light, the light emitting device includes a plurality of infrared photodiodes; the infrared photosensitive tube receives infrared light scattered by dust in the air and infrared light reflected by the mirror, the reflection The reflecting surface of the mirror is a curved surface or a concave surface; the photoelectric converter built in the infrared photosensitive tube converts the infrared light received in the infrared photosensitive tube into a voltage signal; the control device compares the voltage value of the voltage signal with the preset voltage The values are compared to detect the airborne dust content in the room. If the dust content of the indoor air exceeds the standard, the control device controls the alarm to generate an alarm.

[Claim 7] The indoor air dust content exceeding standard alarm method according to claim 6, wherein the method further comprises the steps of: when detecting that the dust content of the indoor air does not exceed the standard, the control device is in the light emission The cycle arrives and sends a lighting command through the communication port to the lighting device to activate each of the infrared photodiodes to generate infrared light.

[Claim 8] The indoor air dust content exceeding standard alarm method according to claim 6, wherein the light emitting device further comprises a numerical control power source, wherein the digital power supply provides the infrared photodiode with electric energy for emitting infrared light, and Each of the infrared photodiodes is controlled to emit infrared light during each illumination period in accordance with a lighting command generated by the control device.