Alarm device for preventing congestion of passing personnel in passage

Abstract

The invention discloses an alarm device for preventing congestion of passing personnel in a passage. The device comprises multiple pairs of infrared intrusion sensors, a NOT gate integrated block, anAND gate integrated block and a loudspeaker. Each infrared intrusion sensor comprises a transmitter and a receiver. The transmitter comprises an infrared light emitting tube. The receiver comprises aninfrared receiving tube. The infrared light emitting tube and the infrared receiving tube are correspondingly arranged. The signal transmitting angle of the infrared intrusion sensors is a sector of15-18 degrees, and the signal coverage width is 40-60cm when the stair width is 150-180cm. The transmitters and the receivers are installed in a staggered way, and the signals of one transmitter simultaneously cover two receivers. The stampede accident caused by congestion of the passageway can be effectively prevented. The related personnel can effectively dispose the situation in time in case ofcongestion of the passageway so as to avoid casualty accident. The device has the advantages of being low in cost, high in reliability, real-time in detection and great in safety so as to provide thesafety guarantee for the schools, the shopping malls, the hotels, the tourist attractions and other passage occasions of large crowd.

Description

technical field [0001] The invention relates to an alarm system, in particular to an alarm device for preventing crowding of passersby. Background technique [0002] At present, with the continuous progress of society, people's living standards are gradually improving, and more and more people are pouring into cities for development. However, the traffic channels in existing cities can no longer guarantee smooth traffic, and there will be stampede incidents every year. The existing technology is all adjusted by personnel, and the subjective consciousness is relatively heavy, often causing unnecessary mistakes due to the mistakes of the staff. According to statistics, among the many stampede accidents of primary and secondary school students that occurred across the country, the proportion of those occurring in stairwells was very high, and the death toll accounted for 81% of the total death toll. Casualty accidents due to crowded corridors have become a prominent problem ...

AI Technical Summary

Problems solved by technology

[0002] At present, with the continuous progress of society, people's living standards are gradually improving, and more and more people are pouring into cities for development. However, the traffic channels in existing cities can no longer guarantee smooth traffic, and there will be stampede incidents every year. The existing technology is adjusted by personnel, and the subjective consciousness is relatively heavy. Unnecessary mistakes are often caused by the mistakes of the staff.

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