Smoke alarm system with ultrasonic insect expelling function

By designing the variable ultrasonic frequency deworming function in the smoke alarm, the problems of misjudgment and frequency adaptation in the prior art are solved, and higher accuracy and long-term effective deworming effect are achieved.

CN222440028UActive Publication Date: 2025-02-07GUANGDONG ISAFENEST CO LTD
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Patent Information

Application Number
CN202421225852.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-02-07
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

Existing smoke alarms are prone to misjudgment when detecting mosquitoes, and the fixed ultrasonic frequency repellent function in the prior art fails after mosquitoes adapt.

Method used

A smoke alarm system with variable ultrasonic frequency function is designed. Random numbers are generated by random number generation unit, and the ultrasonic frequency selection unit is controlled to select ultrasonic waves of different frequencies to maintain the effectiveness of the deworming function.

Benefits of technology

It effectively avoids the adaptation of mosquitoes to ultrasonic frequency, maintains long-term effective anti-worming function, reduces the misjudgment rate, and improves the accuracy of the smoke alarm system.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a smoke alarm system with an ultrasonic insect expelling function, comprising a smoke detection module used for detecting the smoke concentration of the current environment; the ultrasonic generation module is used for emitting ultrasonic waves to repel mosquitoes; the alarm module is used for giving a sound and / or light alarm; the control module controls the working state of the alarm module based on a signal of the smoke detection module; the smoke detection module, the ultrasonic generation module and the alarm module are all connected with the control module; the ultrasonic generation module comprises an ultrasonic frequency selection unit used for selecting the frequency of ultrasonic waves; and the ultrasonic generation unit is used for emitting ultrasonic waves with different frequencies. The fitness of mosquitoes to ultrasonic waves is reduced through the ultrasonic waves with the variable frequency, and the mosquito repelling function is kept effective for a long time; and when the first smoke detection unit and the second smoke detection unit detect that the smoke concentration is greater than the threshold value, the fire danger is judged to occur, so that the accuracy is higher.
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Description

Technical Field

[0001] The utility model relates to the technical field of smoke alarms, and more particularly to a smoke alarm system with an ultrasonic insect repellent function. Background Art

[0002] Smoke alarms are widely used in indoor places. The working principle of smoke alarms is to detect the concentration of smoke particles in the air through the photoelectric principle. When the concentration of smoke particles detected is greater than the set threshold, an alarm is sounded to notify the fire limit, allowing people to evacuate quickly, reducing casualties and financial losses.

[0003] However, smoke alarms may misjudge, for example, if a mosquito flies into a smoke room, the smoke alarm cannot distinguish whether it is smoke or a mosquito, so it is easy to have a false alarm.

[0004] Many smoke alarms in the prior art have added ultrasonic functions to repel mosquitoes through ultrasonic waves. However, the frequency of the ultrasonic waves in the prior art is fixed. After a period of time, mosquitoes adapt to the ultrasonic frequency and the repelling function is lost. Therefore, the applicant has improved the prior art to make the ultrasonic frequency emitted by the smoke alarm variable, thereby avoiding mosquito adaptation and effectively achieving the purpose of repelling mosquitoes. Utility Model Content

[0005] In view of this, the utility model provides a smoke alarm system with ultrasonic insect repellent function.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a smoke alarm system with ultrasonic insect repellent function, comprising:

[0007] Smoke detection module, used to detect the smoke concentration in the current environment;

[0008] An ultrasonic wave generating module, used for emitting ultrasonic waves to drive away mosquitoes;

[0009] An alarm module for emitting an audible and / or light alarm;

[0010] A control module, which controls the working state of the alarm module based on the signal of the smoke detection module;

[0011] The smoke detection module, ultrasonic generation module and alarm module are all connected to the control module;

[0012] The ultrasonic generating module comprises:

[0013] An ultrasonic frequency selection unit, used for selecting the frequency of the ultrasonic wave;

[0014] The ultrasonic generating unit is used to emit ultrasonic waves of different frequencies.

[0015] As a preferred solution of the utility model, the control module has a random number generating unit;

[0016] The ultrasonic frequency selection unit switches on the corresponding resistance channel according to the random number generated by the random number generation unit, and transmits different pulse signals to the ultrasonic generation unit;

[0017] The ultrasonic wave generating unit receives different pulse signals and generates ultrasonic waves of different frequencies.

[0018] As a preferred solution of the utility model, the smoke detection module includes:

[0019] a first smoke detection unit, emitting a first light to detect smoke density;

[0020] a second smoke detection unit, emitting a second light to detect smoke concentration;

[0021] The control module controls the working state of the alarm module based on the signals of the first smoke detection unit and the second smoke detection unit.

[0022] As a preferred solution of the present invention, the first light is red light; the second light is blue light.

[0023] As a preferred solution of the utility model, the alarm module includes:

[0024] An audible alarm unit is used to sound an audible alarm when the smoke detection module detects that the smoke concentration is greater than a threshold value;

[0025] The light alarm unit is used to send out a light alarm when the smoke detection module detects that the smoke concentration is greater than a threshold value.

[0026] As a preferred solution of the utility model, the alarm module further comprises: a warning light unit, which flashes fast or slow according to different frequencies of the ultrasonic waves emitted by the ultrasonic module.

[0027] As a preferred solution of the utility model, it also includes: a humidity detection module, which is used to detect the humidity in the air and send the information to the control module.

[0028] As a preferred solution of the utility model, it also includes: a communication module, which is connected to the control module and is used to receive the data signal output by the control module and realize data interaction with the user terminal.

[0029] It can be seen from the above technical solutions that, compared with the prior art, the present invention has the following beneficial technical effects:

[0030] 1. The utility model is provided with an ultrasonic generating module with variable frequency, which emits ultrasonic waves to drive away mosquitoes and prevent misjudgment; and the adaptability of mosquitoes to ultrasonic waves is reduced by using ultrasonic waves with variable frequency, so as to keep the insect repellent function effective for a long time;

[0031] 2. The smoke detection module of the utility model is provided with a first smoke detection unit and a second smoke detection unit. When both the first smoke detection unit and the second smoke detection unit detect that the smoke concentration is greater than a threshold value, it is determined that a fire hazard has occurred, which has higher accuracy;

[0032] 3. The utility model is provided with a humidity detection module. By detecting the air humidity through the humidity detection module, the probability of fire occurrence and the speed of fire spread after the fire hazard can be determined. When the air humidity is low and the air is dry, users need to pay special attention to avoid fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0034] Figure 1 A functional block diagram of a smoke alarm system with ultrasonic insect repellent function provided in an embodiment of the present application;

[0035] Figure 2 A principle block diagram of a smoke detection module in a smoke alarm system with ultrasonic insect repellent function provided in an embodiment of the present application;

[0036] Figure 3 A principle block diagram of an ultrasonic generating module in a smoke alarm system with an ultrasonic insect repellent function provided in an embodiment of the present application;

[0037] Figure 4 A principle block diagram of an alarm module in a smoke alarm system with ultrasonic insect repellent function provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0039] Smoke alarm system with ultrasonic insect repellent function, such as Figure 1-4As shown, it includes: a smoke detection module 100, an ultrasonic generating module 200, an alarm module 300 and a control module 400;

[0040] Specifically, the smoke detection module 100 is used to detect the smoke concentration in the current environment;

[0041] The ultrasonic wave generating module 200 is used to emit ultrasonic waves to drive away mosquitoes;

[0042] The alarm module 300 is used to issue an audible and / or light alarm;

[0043] The control module 400 controls the working state of the alarm module based on the signal of the smoke detection module;

[0044] The smoke detection module 100, ultrasonic generating module 200, and alarm module 300 are all connected to the control module 400; when a fire occurs, when the smoke detection module 100 detects that the smoke concentration in the environment is greater than a threshold value, the control module 400 receives the signal from the smoke detection module 100 and controls the alarm module 300 to sound an alarm, notifying the user that there is a fire hazard and rescue is required to minimize casualties and property losses.

[0045] The smoke detection module 100 mainly detects smoke through photoelectric detection, and infrared photoelectric detection is commonly used. When the smoke concentration is low or there is no smoke, the reflectivity of infrared light is very low; when the smoke concentration is high, the reflectivity generated by infrared light irradiating smoke particles is very high, so as to judge the smoke concentration;

[0046] However, this principle of use has disadvantages. If mosquitoes fly into or gather in the smoke sensing room of the smoke alarm, it will cause misjudgment. Therefore, an ultrasonic insect repellent function is added to the smoke alarm to repel insects through ultrasonic waves to avoid misjudgment.

[0047] Therefore, in this embodiment, an ultrasonic wave generating module 200 is provided, and the ultrasonic wave generating module 200 emits ultrasonic waves to drive away mosquitoes;

[0048] Furthermore, if the ultrasonic wave generating module 200 continuously emits ultrasonic waves of the same frequency, mosquitoes may adapt to the ultrasonic waves after a period of time. In order to prevent mosquitoes from adapting to ultrasonic waves of a fixed frequency, the ultrasonic wave generating module 200 of this embodiment can emit ultrasonic waves of different frequencies.

[0049] The ultrasonic generating module 200 comprises:

[0050] The ultrasonic frequency selection unit 210 is used to select the frequency of the ultrasonic wave;

[0051] The ultrasonic wave generating unit 220 is used to emit ultrasonic waves of different frequencies.

[0052] Furthermore, the control module 400 can select a chip model of PIC18F4525-I / PT, and the control module 400 has a random number generating unit. The ultrasonic frequency selecting unit 210 turns on the corresponding resistance channel according to the random number generated by the random number generating unit, and transmits different pulse signals to the ultrasonic generating unit 220; the ultrasonic generating unit 220 receives different pulse signals and generates ultrasonic waves of different frequencies.

[0053] Specifically, the random number generating unit generates random numbers by using the (rand) function in the program library function to generate a random positive integer that basically conforms to the normal distribution, and performs operations on the random number - the generated random number is divided by 16 to obtain the remainder, then 16 random remainders are generated, which are "0"-"15"; the ultrasonic frequency selecting unit 210 has a first resistor selecting circuit and a second resistor selecting circuit, both of which use the chip CD4067BM, and the ultrasonic frequency selecting unit 210 has 16 resistor channels, that is, the number of resistor channels is the same as the number of random numbers, and one of the 16 resistor channels is selected according to the random number to generate different pulse signals, and the ultrasonic generating unit 220 receives different pulse signals to generate ultrasonic waves of different frequencies, thereby effectively achieving the purpose of repelling mosquitoes.

[0054] In one embodiment, the smoke detection module 100 includes:

[0055] A first smoke detection unit 110 emits a first light to detect smoke concentration;

[0056] A second smoke detection unit 120 emits a second light to detect smoke concentration;

[0057] The first light is red light, the second light is blue light,

[0058] The control module 400 controls the working state of the alarm module 300 based on the signals of the first smoke detection unit 110 and the second smoke detection unit 120;

[0059] Specifically, the conventional smoke alarm module 100 is provided with only one detection unit, generally an infrared detection unit. When the infrared detection unit detects that the smoke concentration is greater than a threshold value, the control module 400 controls the alarm module 300 to sound an alarm. Single detection is prone to errors. In order to reduce the possibility of false alarms, the present embodiment provides a first smoke detection unit 110 and a second smoke detection unit 120. When the first smoke detection unit 110 uses infrared light for detection and detects that the smoke concentration is greater than a threshold value, the second smoke detection unit 120 starts to use blue light for re-detection. When the second smoke detection unit 120 also detects that the smoke concentration is greater than the threshold value, the control module 400 controls the alarm module 300 to sound an alarm.

[0060] If the first smoke detection unit 110 detects smoke concentration less than a threshold value by using infrared light, the second smoke detection unit 120 is not activated and the alarm module 300 does not sound an alarm.

[0061] The smoke detection module 100 determines whether a fire hazard occurs through two detections, thereby preventing false alarms and providing more reliable performance.

[0062] In one embodiment, the alarm module 300 includes:

[0063] The sound alarm unit 310 is used to issue a sound alarm when the smoke detection module detects that the smoke concentration is greater than a threshold value;

[0064] The light alarm unit 320 is used to send out a light alarm when the smoke detection module detects that the smoke concentration is greater than a threshold value;

[0065] When a fire occurs, the control module 400 controls the alarm module 300 to sound an alarm, and simultaneously sounds and emits a light alarm.

[0066] Furthermore, the alarm module 300 further includes: a warning light unit 330, which flashes fast or slow according to different ultrasonic frequencies emitted by the ultrasonic module;

[0067] When the ultrasonic frequency is high, the flashing frequency of the warning light unit 330 is fast, and when the ultrasonic frequency is low, the flashing frequency of the warning light unit 330 is slow.

[0068] In one embodiment, it further includes: a humidity detection module 500, for detecting the humidity in the air and sending the information to the control module;

[0069] The humidity detection module 500 may use a conventional humidity sensor to sense the humidity in the air. The humidity in the air is sensed to determine the probability of a fire hazard and the speed of fire escalation after a fire occurs.

[0070] For example, if the humidity detection module 500 detects that the current environmental humidity is low and the air is relatively dry, the possibility of a fire is increased; if the humidity detection module 500 detects that the current environmental humidity is high and the air is relatively humid, the possibility of a fire is reduced;

[0071] For another example, when a fire occurs, if the humidity detection module 500 detects that the current ambient humidity is low and the air is relatively dry, the fire will spread faster.

[0072] Furthermore, it also includes: a communication module 600, which is connected to the control module 400 and is used to receive the data signal output by the control module 400 and realize data interaction with the user terminal;

[0073] Here, the user terminal may refer to a mobile phone APP program. When a fire occurs, the alarm module 300 emits a sound and light alarm to notify the indoor personnel to evacuate quickly. At the same time, the communication module 600 sends a signal to the user terminal to notify the user of the fire danger. When no one is indoors, the user can quickly call the police after learning of the danger, notify the fire department to put out the fire, extinguish the danger, and reduce financial losses.

[0074] Furthermore, the humidity detection module 500 detects the current ambient humidity, and the control module 400 can also determine the possibility of fire according to the current ambient humidity, and also send the situation to the user terminal.

[0075] The smoke alarm system with ultrasonic insect repellent function of the utility model repels mosquitoes and prevents misjudgment by setting up an ultrasonic generating module 200; and performs double judgment by setting up a first smoke detection unit 110 and a second smoke detection unit 120 to prevent misjudgment, thereby making the accuracy of the entire smoke alarm system higher.

[0076] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A smoke alarm system with ultrasonic insect repellent function, characterized in that: include: Smoke detection module, used to detect the smoke concentration in the current environment; An ultrasonic wave generating module, used for emitting ultrasonic waves to drive away mosquitoes; An alarm module for emitting an audible and / or light alarm; A control module, which controls the working state of the alarm module based on the signal of the smoke detection module; The smoke detection module, ultrasonic generation module and alarm module are all connected to the control module; The ultrasonic generating module comprises: An ultrasonic frequency selection unit, used for selecting the frequency of the ultrasonic wave; The ultrasonic generating unit is used to emit ultrasonic waves of different frequencies.

2. The smoke alarm system with ultrasonic insect repellent function according to claim 1, characterized in that: The control module has a random number generating unit; The ultrasonic frequency selection unit switches on the corresponding resistance channel according to the random number generated by the random number generation unit, and transmits different pulse signals to the ultrasonic generation unit; The ultrasonic wave generating unit receives different pulse signals and generates ultrasonic waves of different frequencies.

3. The smoke alarm system with ultrasonic insect repellent function according to claim 1, characterized in that: The smoke detection module comprises: a first smoke detection unit, emitting a first light to detect smoke density; a second smoke detection unit, emitting a second light to detect smoke concentration; The control module controls the working state of the alarm module based on the signals of the first smoke detection unit and the second smoke detection unit.

4. The smoke alarm system with ultrasonic insect repellent function according to claim 3 is characterized in that: The first light is red light; the second light is blue light.

5. The smoke alarm system with ultrasonic insect repellent function according to claim 1, characterized in that: The alarm module comprises: An audible alarm unit is used to sound an audible alarm when the smoke detection module detects that the smoke concentration is greater than a threshold value; The light alarm unit is used to send out a light alarm when the smoke detection module detects that the smoke concentration is greater than a threshold value.

6. The smoke alarm system with ultrasonic insect repellent function according to claim 5, characterized in that: The alarm module further comprises: a warning light unit, which flashes fast or slow according to different ultrasonic frequencies emitted by the ultrasonic module.

7. The smoke alarm system with ultrasonic insect repellent function according to claim 1, characterized in that: Also includes: The humidity detection module is used to detect the humidity in the air and send the information to the control module.

8. The smoke alarm system with ultrasonic insect repellent function according to claim 1, characterized in that: Also includes: The communication module is connected to the control module and is used to receive the data signal output by the control module and realize data interaction with the user terminal.