A poisonous gas alarm with the functions of traveling safety prediction and escape direction indication and its working method

Abstract

The invention provides a poisonous gas alarm having advancing safety prediction and escape direction indication functions and a work method thereof. The alarm at least comprises a poisonous gas sensor, a GPS positioning sensor, an altitude sensor, a clock date module, an alarm lamp, a buzzer, a liquid crystal display module and a microprocessor. The work method is characterized in that the microprocessor carries out least square method calculation and predicates time and distance of standard-exceeded alarm, and controls the liquid crystal display module, the alarm lamp and the buzzer to carry out sound-light alarm to alert wearers in advance; and through functions of the GPS positioning sensor and the altitude sensor, when an actual standard-exceeded alarm is given, the microprocessor carries out calculation quickly and indicates the escape direction to guide personnel to escape. The predicated time and distance are forecasted in advance to improve response speed of the alarm and danger alertness of the people; and through quick escape direction indication, escape efficiency of people is improved, and thus personal safety guarantee strength is enhanced.

Description

technical field [0001] The invention relates to the technical field of danger alarms in toxic gas environments, in particular to a toxic gas alarm with the functions of traveling safety prediction and escape direction indication and its working method. Background technique [0002] Leakage and release of toxic gases such as CO often occur in the industry. Operators face the risk of being exposed to toxic gases during work, and there is a risk of poisoning. The current solution is to equip operators with portable poisonous gas alarm devices. Operators carry the device into a dangerous environment. If the concentration of toxic gas exceeds a certain limit value, an audible and visual alarm will be issued to remind personnel to stay away from the dangerous area. [0003] However, due to the certain response time of the toxic gas detector in the alarm device, when a sudden toxic gas leak occurs or a person quickly enters a high-concentration toxic gas area with a sudden leak, th...

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Problems solved by technology

[0003] However, due to the certain response time of the toxic gas detector in the alarm device, when a sudden toxic gas leak occurs or a person quickly enters a high-concentration toxic gas area with a sudden leak, the alarm device has no time to issue a dangerous alarm, resulting in a large Especially when people enter the sudden leakage area, they need to feel the alarm and then give judgment and feedback. In fact, they have been eroded by poisonous gas

[0004] Moreover, for example, in areas where production equipment is concentrated and pipelines are intricate, when personnel encounter sudden leakage during travel, it is difficult to find or recall the escape route or escape direction at the first time, so that the escape opportunity is delayed; in some accident cases , because the personnel made a wrong judgment on the direction of escape at the moment of tension, so that instead of escaping, they entered a more dangerous area, resulting in personal injury and death

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