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Software and hardware combined gas fire extinguishing valve driving method

A software, hardware and gas technology, used in fire rescue, fire alarms, instruments, etc., can solve problems such as environmental pollution, damage to human body and objects, air and environmental pollution, etc., to achieve high system reliability and low false spray rate. , The effect of loop safety and reliability

Active Publication Date: 2012-06-27
西安特菲尔电子有限公司
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Problems solved by technology

In this method, usually under the condition of strong interference or lightning interference, the spray solenoid valve may be activated by mistake, so that all the compressed fire extinguishing gas in the system is sprayed. Because these compressed fire extinguishing gases are expensive, some gases are harmful to human body and body. Items have harmful effects, and will also cause a certain degree of pollution to the atmosphere and the environment, and once these gases are sprayed, they cannot be stopped. Therefore, once the system sprays by mistake, it will cause great losses to the owner's life and property, and cause serious damage to the environment. a lot of pollution

Method used

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  • Software and hardware combined gas fire extinguishing valve driving method
  • Software and hardware combined gas fire extinguishing valve driving method
  • Software and hardware combined gas fire extinguishing valve driving method

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Embodiment Construction

[0009] Such as figure 1 As shown, after the controller receives the fire alarm signals from the two detectors, it will judge the time difference between the arrival of the two detector signals. If the time difference between the two signals is within 1ms or less, the controller will not issue a start command, only It will remind the system that there is a fire alarm; if the time difference between the two signals is greater than 1ms, the controller will issue a start command to start the spray solenoid valve and send out a fire alarm message.

[0010] Because in terms of physical characteristics, it is impossible for smoke and heat detectors to occur simultaneously within 1ms, this situation can only be generated by interference signals, so only when the time difference between the two signals is greater than 1ms, the controller will A command to start the solenoid valve will be issued, which eliminates the possibility of system misoperation after the system is subjected to a ...

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Abstract

The invention provides a software and hardware combined gas fire extinguishing valve driving method. After receiving fire alarm signals of two paths of detectors, a controller judges arrival time difference of the signals of the two paths of detectors; if the time difference of the two paths of signals is 1ms or within 1ms, the controller does not send a starting command out and only prompts the system that fire alarm occurs; and if the time difference of the two paths of signals is more than 1ms, the controller sends the starting command out to start a sprinkling electromagnetic valve so as to send fire alarm information out. By the method, a loop for driving the electromagnetic valve is safe and reliable and the sprinkling error rate is low.

Description

technical field [0001] The invention relates to a method for a gas fire extinguishing controller in a fire alarm system to drive an interface of a spraying electromagnetic valve and start a gas fire extinguishing device by combining software and hardware. Background technique [0002] my country's current standard GB16806-2006 "Fire Linkage Control System" stipulates that the gas fire extinguishing controller should be able to send a start control signal after receiving a signal from a smoke detector and a signal from a heat detector. Then start the spray solenoid valve to spray fire extinguishing gas to extinguish the fire, and can receive gas spray signal, fault signal, selector valve and bottle head valve action signal. At present, the method of driving the solenoid valve by the gas fire extinguishing controller in the industry generally adopts that after the controller receives the fire alarm of one smoke detector and one heat detector, the software judges whether the AD ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62C37/40G08B17/00
Inventor 尹华国姜华
Owner 西安特菲尔电子有限公司
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