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Self-learning fire-source simulating system and method

A technology of simulating fire source and self-learning, applied in the field of self-learning simulation fire source system, it can solve the problems of large spectrum lamp, large volume, fixed imitation frequency, etc., and achieve high modulation efficiency, high luminous efficiency and high pulse rate. Effect

Active Publication Date: 2015-06-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] These three types of devices have their own advantages and disadvantages, but the first type requires the use of electric motors, which generate relatively large noise, are relatively large in size, heavy and consume a large amount of energy
The shape of the second type of flame is mainly determined by the hardware. Once you want to change the shape of the flame, you need to change the hardware, and the change of the flame is discontinuous and uncontrollable
The third type of intelligent flame can imitate a flame with a certain frequency, but its imitation frequency is relatively fixed, but the flame flickering frequency is different when different materials burn
The type of fire source simulated by the device is relatively single, and cannot be popularized and used; in addition, the internal resistance of the spectrum lamp used in the device will increase significantly with the increase of use time. Since the power supply voltage of the bulb remains unchanged, the power of the spectrum lamp Will be significantly reduced, that is, the luminous intensity will be significantly reduced

Method used

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  • Self-learning fire-source simulating system and method

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Embodiment 1

[0040] Such as figure 1 As shown, this self-learning system for simulating fire sources includes an infrared flame detection module (1), a main control circuit (2), a constant power drive circuit (5) and a MEMS light source (6), characterized in that: the infrared flame The flame signal information collected by the detector module (1) is input to the microprocessor (3) in the main control circuit (2) through the serial port; the main control circuit (2) is composed of the microprocessor (3) and its Peripheral circuit (4); the output terminal of the constant power drive circuit (5) is connected to the MEMS light source (6), and the MEMS light source (6) finally emits light with a set frequency and radiation intensity to achieve fire detection source simulation.

Embodiment 2

[0042] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0043] The infrared flame detection module (1) described in the self-learning simulated fire source system adopts the Chinese invention patent CN10242675A technology, and uses its infrared multi-parameter fire and gas detector to collect flame radiation intensity information. connected to the device.

[0044] When hydrocarbons burn, there is a peak near 2.7um and 4.3um in the infrared band, and the sun’s radiation near these two bands is absorbed by CO2 in the air, so we use multi-parameter infrared when collecting flame signals The detector uses a lead sulfide sensor with a central band near 2.7um and a pyroelectric sensor with a central band near 4.3um installed with a narrow-band filter as the sensor for flame detection; a parameter is selected on both sides of the peak radiation band 4.3um Spectral wave: 3.8um and 5.0um, since any infrared radiation source has its uniq...

Embodiment 3

[0050] This self-study simulation fire source method adopts the above-mentioned self-study simulation fire source system to operate, and the specific operation steps are as follows:

[0051] 1) Acquisition and processing of flame signals. The flame radiation intensity information of different materials is collected through the infrared flame detection module, and the collected information is transmitted to the microprocessor through the serial port. The microprocessor performs fast Fourier transformation on the collected data. transform.

[0052] 2) To control the flicker frequency of the MEMS light source, a pulse signal is generated to control the frequency of the MEMS through the output voltage of an I / O port of the microprocessor.

[0053] 3) The control of the luminous intensity of the MEMS light source, the microprocessor program controls the digital potentiometer MCP41010 to adjust the voltage at both ends of the MEMS light source to realize the control of the luminous ...

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Abstract

The invention relates to a self-learning fire-source simulating system and method. The system comprises an infrared flame detecting module, a main control circuit, a constant-power driving circuit and an MEMS light source. The main control circuit comprises a microprocessor and a peripheral circuit of the microprocessor. The output of the infrared flame detecting module is connected to the microprocessor of the main control circuit through a serial port. The main control circuit is connected with the constant-power driving circuit, and the constant-power driving circuit is connected with the MEMS light source. A product based on the self-learning fire-source simulating system and method can serve as an instrument for regularly checking and calibrating some important site fire alarm systems and can also serve as a research and development tool of a fire detector manufacturer and a quality testing tool of a manufacturing shop; meanwhile, multiple interference sources in a site can be learnt in a close-range mode, and the effect of accumulating interference signal mode identification data can be achieved. By means of the self-learning fire-source simulating system and method, the reliability of a fire detector can be improved, the maintenance workloads can be reduced, the quality testing efficiency can be improved, and the research, development and production cost can be reduced.

Description

technical field [0001] The invention provides a system and method for simulating a fire source, in particular a system and method capable of self-learning and simulating a fire source, which can be used to accurately simulate the flame spectrum characteristics of fuel combustion of different materials. Background technique [0002] In the research and development of fire detection instruments and other related products, to obtain experimental data to determine the empirical thresholds of different flame types and detection distances, and to select flame recognition algorithms based on this, it is often necessary to light open flames for experiments; in nuclear submarines, aircraft carriers, oil refineries and Fire detectors in arsenals and other places must be regularly inspected and maintained. Lighting fires to test fire alarm systems has huge potential risks. In the production process of fire detectors, fire detectors also need to light fires to obtain experimental data fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 杨帮华高攀张永怀宋春婷李华荣张桃段凯文
Owner SHANGHAI UNIV
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