CN101770681B

CN101770681B - Household earthquake early warning system

Info

Publication number: CN101770681B
Application number: CN200910110816.9A
Authority: CN
Inventors: 许金聪; 许佳铭
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-04
Filing date: 2009-01-04
Publication date: 2014-01-15
Anticipated expiration: 2029-01-04
Also published as: CN101770681A

Abstract

The invention discloses a household earthquake early warning system. A device is sequentially connected with an earthquake S wave sensor, an earthquake P wave sensor and a controller. The controller comprises a signal detection comparator, a signal conditioner, a signal discrimination setting device, a signal amplifier, a signal shaper and an OR gate circuit, wherein the OR gate circuit is connected with an earthquake magnitude setter and an alarm. The invention eliminates a high-tech expensive seismograph, and utilizes the earthquake wave sensors to measure the shaking energy of earthquake waves, and shaking signals are compared and amplified by signals and are shaped by waves to identify the earthquake waves. Once the earthquake waves exist, the alarm continuously sends signals. The device with simple structure and low cost is used to early warn the arrival of earthquake so as to warn people to flee from danger zones.

Description

Household earthquake early warning system

Technical field

The present invention relates to a kind of detection instrument, particularly a kind of seismic survey instrument.

Background technology

The arriving of most of earthquake can not be predicted accurately, even the new and high technology in the present age can not accurately be predicted upcoming disaster.Scientists in the world also has by analyzing weather, current situation carrys out foreseeing earthquake, but the sensitiveest, state-of-the-art instrument or seismograph, now, many digital seismographs are invented, but it is expensive, and structure is very complicated.

Above-mentioned seismograph major part is to be suitable for being placed in laboratory, weather station or meteorological institute, and neither one is applicable to building in house, same, also without any seismograph, with any public alarm notification system, is connected.

And existing seismograph, easily by erroneous trigger, causes the paralysis of people's awareness of safety.

Summary of the invention

For the deficiencies in the prior art part, the invention provides a kind of safe and reliable household earthquake early warning system, it can provide coming earthquake instant True Data, and can utilize existing public alarm notification system to report to the police.

For achieving the above object, technical solution of the present invention is:

Household earthquake early warning system, this device is connected with earthquake S wave sensor, P-wave sensor, controller in turn; Described controller comprises input comparer, signal conditioner, signal mirror

Device, signal amplifier, signal shaper and OR circuit are not set, and this OR circuit connects an earthquake magnitude setting apparatus and a warning horn.

Described earthquake S wave sensor comprises a sensor outer housing, and its upper and lower end face that is movably set in respectively a sensor semicircular cylinder by a upper cover and a lower cover forms; Also comprise a sensor inner core, comprise that one is built in the core cylinder in sensor semicircular cylinder, core cylinder is built-in with a magnet and upper spring, and upper spring is resisted against upper cover and the magnet upper surface of sensing shell, in the setting position of the corresponding magnet of core cylinder outer wall, is coated with a coil.

Described P-wave sensor comprises after the etching of dioxyacetic acid sodium and adds silver-plated pcb board, and pcb board connects controller.

The usefulness of technique scheme is:

The present invention abandons expensive high-tech seismograph, utilizes the size of the vibration energy of earthquake S wave sensor, P-wave sensor measurement seismic event, and vibration signal, after signal compares and amplifies, after the arrangement of waveform, identifies seismic event.Once seismic event exists, warning horn just continuously sends out signal.With this simple structure and low-cost instrument, carry out the arriving of Pre-Alarm Earthquakes disaster, warning people are flee danger area immediately.

Accompanying drawing explanation

Fig. 1 is fundamental diagram of the present invention;

Fig. 2 is earthquake S wave sensor structural representation of the present invention;

Fig. 3 is P-wave sensor construction schematic diagram of the present invention;

Fig. 4 is that signal discriminating arranges device electrical block diagram.

Embodiment

The present invention is now described in conjunction with the accompanying drawings and embodiments.

Household earthquake early warning system as shown in Figure 1, this device is connected with earthquake S wave sensor, P-wave sensor, controller in turn.Described controller comprises that input comparer, signal conditioner, signal discriminating arrange device, signal amplifier, signal shaper and OR circuit, and this OR circuit connects an earthquake magnitude setting apparatus and a warning horn.

Earthquake S wave sensor as shown in Figure 2 comprises a sensor outer housing, and its upper and lower end face that is movably set in respectively a sensor semicircular cylinder by a upper cover and a lower cover forms; Also comprise a sensor inner core, this sensor inner core comprises that one is built in the core cylinder 3 in sensor semicircular cylinder, this core cylinder 3 is built-in with a magnet 4 and upper spring 7, upper spring 7 is resisted against upper cover 1 and magnet 7 upper surfaces of sensing shell, in the setting position of the corresponding magnet 7 of core cylinder 3 outer walls, is coated with a coil 5.

P-wave sensor is as shown in Figure 3 added the silver-plated LIXEN sensor that forms after the etching of dioxyacetic acid sodium by pcb board, supporting electronic circuit box is connected with controller, whether it leaves in special water tank and comes detection level face to exist, and then ripples signal is sent to controller and processes.

Signal as shown in Figure 4 differentiates that the circuit that device is set at least comprises relatively Discr. of a signal, it mainly utilizes electromagnetic wave detection technology to differentiate the power of ripple, be used for, it is connected with seismic event sensor, and the shock wave detecting is set in automatic recognition system and carried out seismic event relatively and classification in earthquake earthquake degree.Described signal comparison discriminator circuit is connected with a filtering circuit, and its shock wave by the shock wave detecting and default earthquake magnitude compares, and filters out the shock wave that is less than default earthquake magnitude.When seismic event surpasses the shock wave of presetting earthquake magnitude, seismic event surpasses the load of electromagnetism tangent line, just reports to the police.One amplifying circuit, it connects filtering circuit, for the shock wave that is greater than default earthquake magnitude is amplified; One shaping circuit, its input end connects amplifying circuit, and output terminal connects warning horn.As shown in Figure 4, seismic event sensor letter

Number from R1, input, T1, T2 are that signal compares the triode in discriminator circuit, by capacitor C 1, C2, C3, filter otiose signal, through differentiating that the amplifying circuit that useful signal consists of T3, T4 amplifies, by monitoring locking power supply, then rectified signal expands and triggers latching logic circuit and go to give the alarm.

Claims

1. household earthquake early warning system, is characterized in that: this system is connected with earthquake S wave sensor, P-wave sensor, controller in turn; Described controller comprises that input comparer, signal conditioner, signal discriminating arrange device, signal amplifier, signal shaper and OR circuit, and this OR circuit connects an earthquake magnitude setting apparatus and a warning horn; Described earthquake S wave sensor comprises:

One sensor outer housing, its upper and lower end face that is movably set in respectively a sensor semicircular cylinder by a upper cover and a lower cover forms;

One sensor inner core, comprises that one is built in the core cylinder in sensor semicircular cylinder, and core cylinder is built-in with a magnet and upper spring, and upper spring is resisted against upper cover and the magnet upper surface of sensing shell, in the setting position of the corresponding magnet of core cylinder outer wall, is coated with a coil;

Described sensor semicircular cylinder outer diameter is 105MM-115MM, and upper spring length is greater than 80MM, and core cylinder is 1: 4 with the diameter ratio of sensor semicircular cylinder;

Described signal differentiates that the circuit that device is set comprises:

At least have relatively discriminator circuit of a signal, it is connected with seismic event sensor, and the shock wave detecting and seismic event are compared and classified, and removes non-seismic event;

At least have a filtering circuit, it connects relatively discriminator circuit of signal, and its shock wave by the vibrations S ripple detecting and P ripple and default earthquake magnitude compares, and filters out the shock wave that is less than default earthquake magnitude;

At least have an amplifying circuit, it connects filtering circuit, for the shock wave that is greater than default earthquake magnitude is amplified;

At least have a shaping circuit, its input end connects amplifying circuit.