Prison perimeter high-voltage power grid linkage alarm equipment

Abstract

The invention discloses prison perimeter high-voltage power grid linkage alarm equipment, which structurally comprises a machine body, a power connection port, a loudspeaker and a heat dissipation net, wherein the right side of the machine body and the power connection port are integrally formed, and the periphery of the heat dissipation net is fixedly installed on one side of the machine body; the machine body comprises a shell, a cable, a selective power-off structure, an infrared emitter and a sounder. The selective power-off structure is matched with an electromagnet on the cable, connection is kept through magnetic force resistance of a lower pressing ring under the normal condition, current can normally flow into the machine body to enable alarm equipment to work, and when a high-voltage power grid is short-circuited, huge current firstly flows through the electromagnet on the cable to generate huge magnetic force, so that the selective lower pressing ring cannot be pressed and bounced off to disconnect a circuit, meanwhile, the current is further prevented from flowing in through fusing of the burning fuse, and meanwhile, a built-in power supply is started to drive the cableto work. Alarm equipment is prevented from being burnt due to the fact that a large amount of current is injected at the moment of short circuit. And maintenance is more convenient.

Description

technical field [0001] The invention relates to the field of power grids, in particular to a high-voltage power grid linkage alarm device around a prison. Background technique [0002] Prison refers to places where prisoners are held, including prisons, detention centers, and detention centers. Due to the daily electricity demand of the personnel in the prison, high-voltage power grids are installed around the perimeter of the prison to supply power to the prison to ensure the power supply inside the prison. Demand, the alarm is an electronic product that reminds or warns us of certain actions in the form of sound, light, air pressure, etc. to prevent or prevent the consequences of an event. In order to prevent prisoners from escaping, the perimeter of the prison There will be a large number of alarms. When the prisoner escapes from prison, the prison guard will be sent out in time. Due to the particularity of the prison, a high-voltage power grid surrounded by multiple circ...

AI Technical Summary

Problems solved by technology

[0002] Prison refers to places where prisoners are held, including prisons, detention centers, and detention centers. Due to the daily electricity demand of the personnel in the prison, high-voltage power grids are installed around the prison to supply power to the prison to ensure the internal power supply of the prison. Demand, the alarm is an electronic product that reminds or warns us to take certain actions in the form of sound, light, air pressure, etc. to prevent or prevent the consequences of an event. In order to prevent prisoners from escaping, the perimeter of the prison There will be a large number of alarms. When the prisoner escapes from the prison, an alarm will be issued to the prison guards in time. Due to the particularity of the prison, a high-voltage power grid surrounded by multiple circles is generally installed around the high wall of the prison to deter the prisoners. There is a kind of alarm The equipment is linked with the high-voltage power grid, and it is powered and charged through the high-voltage power grid. When a prisoner escapes from a high wall, he must first destroy the high-voltage power grid and then climb over. Prisoners have limited tools in the prison, and they can destroy the power grid through Make it open or short circuit, and short circuit is easier to achieve. Since the alarm equipment relies on the high-voltage power grid for power supply, and its own power supply is also installed inside, when the high-voltage power grid is short-circuited, a huge current will be injected into the alarm equipment, resulting in an alarm. The inside of the device was burned, so it was impossible to give timely warning to the jailbreakers, and the prison guards could not get the reminder of someone's jailbreak in time.

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