False alarm prevention smoke sensing detection alarm and alarm control method

A control method and technology for preventing false alarms. It is applied in the direction of fire alarms that rely on smoke/gas action, and fire alarms that rely on electricity. It can solve problems such as false alarms, increase implementation costs and equipment energy consumption, and reduce Energy consumption, ease of implementation, and reduction of false positives

Active Publication Date: 2021-06-25
VITALONG FIRE SAFETY GRP
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

It mainly uses the principle of infrared light scattering to detect the smoke generated when a fire occurs. Smoke particles enter the labyrinth of the detector to scatter the infrared light emitted by the emission tube. The intensity of the scattered infrared light has a certain linear relationship with the smoke concentration. The control chip judges these changes to confirm whether a fire has occurred. This detection method often causes false alarms due to the influence of the environment.
[0003] At present, the site will monitor whether the temperature on site exceeds the threshold in real time by setting temperature detectors, and judge whether there is a fire on site by detecting the temperature and smoke in the site. Because the temperature is often affected by climate changes or changes in the number of people in the room, and in dry weather The flow of people sometimes also triggers the smoke alarm, which often causes false alarms, and more temperature detectors are set in this way, which increases the implementation cost and equipment energy consumption

Method used

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  • False alarm prevention smoke sensing detection alarm and alarm control method
  • False alarm prevention smoke sensing detection alarm and alarm control method
  • False alarm prevention smoke sensing detection alarm and alarm control method

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Embodiment 1

[0025] Embodiment 1 of the present invention provides an anti-false alarm smoke detection alarm, such as figure 1 As shown, it includes a smoke sensor, a temperature sensor, a control module, a clock module and an alarm module. The smoke sensor and the temperature sensor are respectively connected to the control module to transmit detection signals and data, wherein the smoke sensor detects in real time whether there is When smoke is generated, the temperature sensor is normally in a standby state, and when the smoke sensor detects a smoke signal, the temperature sensor is triggered to work;

[0026] The control module is also connected with the clock module and the alarm module respectively, and obtains the temperature values ​​at different times after the smoke is detected through the clock module, and processes and judges to obtain the temperature change trend. When the temperature is on the rise, the alarm module is triggered to send out Alarm.

Embodiment 2

[0028] Embodiment 2 of the present invention provides an alarm control method for an anti-false alarm smoke detection alarm based on the above embodiment 1, comprising the following steps:

[0029] S1: Triggering of the temperature sensor: When the smoke sensor detects a smoke signal, it is transmitted to the control module, and then the temperature sensor is triggered to work;

[0030] When the control module receives the smoke signal detected by the smoke sensor, it drives the temperature sensor to detect the ambient temperature, thereby reducing the energy consumption of the device.

[0031] S2: Acquisition of temperature data: After the temperature sensor is triggered, it detects the temperature of the surrounding environment within a certain time range, and at the same time the control module sets the counter count and initializes to obtain temperature data at multiple times, which is set in this embodiment Acquire temperature value data at ten different times, which are ...

Embodiment 3

[0037] Embodiment 3 of the present invention provides an alarm control method for an anti-false alarm smoke detection alarm, based on the addition of a preliminary temperature judgment after step S2 in embodiment 2, and based on the set fire alarm temperature threshold, a fixed value comparison is performed, Specific steps are as follows:

[0038] Wherein steps S1 and S2 are identical with above-mentioned embodiment 2, do not repeat description here;

[0039] S3: Preliminary judgment of temperature. When the smoke sensor detects smoke and triggers the temperature sensor to work, judge whether the current temperature reaches the set fire alarm temperature threshold. If it reaches the threshold, the control module will compare the temperature values ​​received at each time. If If the threshold is not reached, the control module does not perform temperature comparison processing, and the temperature sensor continues to be in a standby state.

[0040] S4: Temperature comparison j...

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Abstract

The invention provides a false alarm prevention smoke sensing detection alarm and an alarm control method. The device comprises a smoke sensor, a temperature sensor, a control module, a clock module and an alarm module. The temperature sensor is triggered after the smoke sensor detects a smoke signal, after the temperature sensor is triggered to work, temperature data at multiple different moments are obtained through the clock module and transmitted to the control module for comparison processing, and whether a fire occurs or not is judged according to the change trend of the temperature within a certain period of time. According to the invention, the energy consumption of the device is reduced, the fire detection accuracy is improved, and the false alarm of the alarm is reduced.

Description

technical field [0001] The invention relates to the technical field of smoke detection alarms, in particular to a smoke detection alarm preventing false alarms and an alarm control method. Background technique [0002] Smoke detectors are one of the important devices for fire detection and alarm, and are widely used in important fire prevention places such as homes, factories, office buildings, hospitals, schools, and museums. The principle of infrared light scattering is mainly used to detect the smoke generated when a fire occurs. Smoke particles enter the labyrinth of the detector to scatter the infrared light emitted by the emission tube. The intensity of the scattered infrared light has a certain linear relationship with the smoke concentration. The control chip judges these changes to confirm whether a fire has occurred. This detection method often causes false alarms due to the influence of the environment. [0003] At present, the site will monitor whether the tempe...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G08B17/10G08B17/06
CPCG08B17/10G08B17/06
Inventor胡安林倪晓程胡德波刘国庆张星石进良赵飞艳陈亮王庆李斐然
OwnerVITALONG FIRE SAFETY GRP