Earthquake early warning and aftershock monitoring system for earthquake rescue site

Abstract

The utility model belongs to the technical field of earthquake monitoring equipment, and particularly discloses an earthquake early warning and aftershock monitoring system for an earthquake rescue site. Comprising a display screen host used for seismic data network receiving, calculation and large-screen display, three seismic detectors used for detecting seismic signals and internally provided with high-precision MEMS modules, and a UPS used for providing electric energy for the display screen host and the seismic detectors. According to the utility model, through cooperation of the display screen host, the tweeter and the four-color alarm lamp with the three earthquake detectors, the three earthquake detectors are arranged at fixed intervals, so that longitudinal wave vibration signals of earthquake waves can be accurately monitored in real time, and the display screen host can be connected to a Chinese earthquake early warning network through a wireless network. The earthquake intensity rapid report information is received in real time, and sound-light alarm is performed through the four-color alarm lamp and the tweeter in advance before destructive earthquake waves arrive, so that the aftershock monitoring accuracy rate is improved, and the rescue safety of rescue personnel is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake monitoring equipment, in particular to an earthquake early warning and aftershock monitoring system at an earthquake rescue site. Background Art

[0002] Earthquake monitoring not only includes recording vibrations when an earthquake occurs, but also involves observing earthquake precursors and tracking aftershocks after an earthquake. The energy generated when an earthquake occurs propagates inside the earth in the form of seismic waves. By capturing these seismic waves with seismometers deployed in various places, scientists can extract important information about the earthquake, such as the location of the epicenter, magnitude, and focal depth. This method provides basic data for understanding the basic characteristics of earthquakes and their aftershocks, and is the basis for subsequent analysis and early warning work.

[0003] After an earthquake, many departments and personnel will go to the earthquake site for rescue. Aftershocks often occur, seriously affecting the lives and safety of rescue workers. However, the current monitoring methods for earthquake aftershocks are not perfect enough, resulting in low accuracy of aftershock monitoring, which is not conducive to the safe rescue of rescue workers. Therefore, we need to propose an earthquake early warning and aftershock monitoring system at the earthquake rescue site to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an earthquake early warning and aftershock monitoring system at an earthquake rescue site, which can improve the accuracy of aftershock monitoring and greatly improve the safety of rescue personnel in rescue, so as to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an earthquake early warning and aftershock monitoring system at an earthquake rescue site, comprising a display screen host for receiving, calculating and displaying earthquake data on a network, three earthquake detectors with built-in high-precision MEMS modules for detecting earthquake signals, and a UPS power supply for providing power to the display screen host and the earthquake detectors, the three earthquake detectors are electrically connected to the display screen host, the installation distance of the three earthquake detectors is 1000±50 meters, and the display screen host is electrically connected to a tweeter and a four-color alarm light;

[0006] The display screen host comprises a processing module, a network interface module, a single-chip STM32 circuit module and a wireless communication module, and the network interface module, the single-chip STM32 circuit module and the wireless communication module are all electrically connected to the processing module.

[0007] Preferably, the processing module includes a microprocessor chip U1C, pin 2 of the microprocessor chip U1C is connected to a capacitor C29, one end of the capacitor C29 is connected to a connection terminal J1 for connecting a wireless communication module, pin 31 of the microprocessor chip U1C is connected to a ground capacitor C30, and pin 33 of the microprocessor chip U1C is connected to a ground capacitor C31.

[0008] Preferably, the network interface module includes a network port transformer T1 and a connection interface J6 connected to the network port transformer T1, pin 1 of the network port transformer T1 is connected to a resistor R22, pin 3 of the network port transformer T1 is connected to a resistor R23, pin 2 of the network port transformer T1 is connected to pin 2 and pin 7 are connected in parallel with a capacitor C34 and a capacitor C33 to ground, pin 6 of the network port transformer T1 is connected to a resistor R24, and pin 8 of the network port transformer T1 is connected to a resistor R25, and one end of the resistor R24 ​​and one end of the resistor R25 are both grounded.

[0009] Preferably, the single-chip STM32 circuit module includes a single-chip chip IC1, pin 60 of the single-chip chip IC1 is connected to a ground resistor R1, pin 7 of the single-chip chip IC1 is connected to a resistor R2, one end of the resistor R2 is connected to pins 32, 48, 64 and 19 of the single-chip chip IC1, and the single-chip chip IC1 is also connected to a gyroscope circuit, a flash circuit and a storage circuit.

[0010] Preferably, the gyroscope circuit includes a gyroscope chip U1, pins 2 and 8 of the gyroscope chip U1 are grounded, pin 3 of the gyroscope chip U1 is connected to pin 39 of the single-chip microcomputer chip IC1, and pin 18 of the gyroscope chip U1 is connected to pin 40 of the single-chip microcomputer chip IC1.

[0011] Preferably, the flash circuit includes a flash chip IC5, pins 7 and 8 of the flash chip IC5 are both connected to a 3.3V voltage, pin 1 of the flash chip IC5 is connected to pin 14 of the microcontroller chip IC1, pin 2 of the flash chip IC5 is connected to pin 22 of the microcontroller chip IC1, and pins 5 and 6 of the flash chip IC5 are respectively connected to pins 23 and 21 of the microcontroller chip IC1.

[0012] Preferably, the wireless communication module includes a wireless chip U2, a resistor R45 and a light-emitting diode D10 are connected in series between pins 16 and 17 of the wireless chip U2, pin 24 of the wireless chip U2 is connected to a resistor R6 having one end connected to a single-chip microcomputer chip IC1, and pin 48 of the wireless chip U2 is connected to a connector J11 for connecting a radio frequency chip.

[0013] Preferably, the UPS power supply includes a control chip IC7, pin 3 of the control chip IC7 is connected to an indicator light D6, pin 5 of the control chip IC7 is connected to an indicator light D5, pin 16 of the control chip IC7 is connected to a switch tube Q3, pin 2 of the switch tube Q3 is connected to a diode D2, one end of the diode D2 is connected to a diode D3 and an inductor L2, one end of the inductor L2 is connected to a resistor R22, one end of the resistor R22 is connected to a solar panel, and pin 9 of the control chip IC7 is connected in series with a resistor R19 and a capacitor C17, and one end of the capacitor C17 is grounded.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model cooperates with a display screen host, a tweeter and a four-color alarm light and three seismic detectors. The three seismic detectors are placed at a fixed distance and can accurately monitor seismic wave longitudinal wave vibration signals in real time. The display screen host can be connected to the China Earthquake Early Warning Network through a wireless network and receive earthquake intensity rapid report information in real time. When it is monitored that the intensity of an earthquake wave reaching a destination exceeds a set threshold, an audible and visual alarm is given in advance through the four-color alarm light and the tweeter before the destructive earthquake wave arrives, thereby improving the accuracy of aftershock monitoring and greatly improving the safety of rescue personnel in rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a system block diagram of the utility model;

[0017] Figure 2 This is a circuit diagram of a processing module of the utility model;

[0018] Figure 3 This is a circuit diagram of a network interface module of the utility model;

[0019] Figure 4 It is the circuit diagram of the single chip microcomputer STM32 circuit module of the utility model;

[0020] Figure 5 This is a circuit diagram of a wireless communication module of the utility model;

[0021] Figure 6 This is a UPS power supply circuit diagram of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides a technical solution: an earthquake early warning and aftershock monitoring system at an earthquake rescue site, comprising a display screen host (such as an Android large-screen host) for receiving, calculating and displaying earthquake data on a network, three earthquake detectors with built-in high-precision MEMS modules for detecting earthquake signals, and a UPS power supply for providing power to the display screen host and the earthquake detectors. The three earthquake detectors are electrically connected to the display screen host, and the installation distance of the three earthquake detectors is 1000±50 meters. A tweeter and a four-color alarm light are electrically connected to the display screen host. The tweeter and the four-color alarm light are often integrated into the same alarm system to achieve the effect of sound and light linkage. When the system detects an abnormality, it will automatically trigger the corresponding sound and light effect to ensure that while providing auditory warnings, visual warnings are also provided, doubly guaranteeing more effective emergency communications.

[0024] The display screen host includes a processing module, a network interface module, a single-chip STM32 circuit module and a wireless communication module. The network interface module, the single-chip STM32 circuit module and the wireless communication module are all electrically connected to the processing module. Three seismic detectors are placed at a fixed distance to accurately monitor seismic wave longitudinal wave vibration signals in real time. The display screen host can be connected to the China Earthquake Early Warning Network through a wireless network to receive earthquake intensity rapid reporting information in real time. When it is monitored that the intensity of an earthquake wave reaching the destination exceeds a set threshold, an audible and visual alarm is given in advance through a four-color alarm lamp and a tweeter before the destructive earthquake wave arrives, thereby improving the accuracy of aftershock monitoring and greatly improving the safety of rescue personnel.

[0025] The processing module includes a microprocessor chip U1C, pin 2 of the microprocessor chip U1C is connected to a capacitor C29, one end of the capacitor C29 is connected to a connection terminal J1 for connecting a wireless communication module, pin 31 of the microprocessor chip U1C is connected to a ground capacitor C30, and pin 33 of the microprocessor chip U1C is connected to a ground capacitor C31. Capacitors C29, C30 and C31 are used for power decoupling and signal coupling, helping to suppress high-frequency noise on the power line and preventing the noise generated by the microprocessor chip U1C from interfering with other parts. The microprocessor chip U1C effectively improves the processing effect of earthquake intensity rapid report information data.

[0026] The network interface module includes a network port transformer T1 and a connection interface J6 connected to the network port transformer T1, pin 1 of the network port transformer T1 is connected to a resistor R22, pin 3 of the network port transformer T1 is connected to a resistor R23, pin 2 of the network port transformer T1 is connected to a capacitor C34 and a capacitor C33 to ground in parallel with pin 2 and pin 7, pin 6 of the network port transformer T1 is connected to a resistor R24, and pin 8 of the network port transformer T1 is connected to a resistor R25, one end of the resistor R24 ​​and one end of the resistor R25 are both grounded, and the network interface module is based on the signal conversion and isolation function of the network transformer T1, and realizes accurate signal transmission and noise suppression through the configuration of a series of resistors and capacitors.

[0027] The single-chip microcomputer STM32 circuit module includes a single-chip microcomputer chip IC1, pin 60 of the single-chip microcomputer chip IC1 is connected to a ground resistor R1, pin 7 of the single-chip microcomputer chip IC1 is connected to a resistor R2, one end of the resistor R2 is connected to pins 32, 48, 64 and 19 of the single-chip microcomputer chip IC1, and the single-chip microcomputer chip IC1 is also connected to a gyroscope circuit, a flash circuit and a storage circuit, and the storage circuit includes a storage chip IC6 with a model of MB85RS1MTPNF-G-JNERE1. By integrating the gyroscope circuit, the flash circuit and the storage circuit on the single-chip chip IC1, the system power-on timing, the environmental temperature and humidity, and the pressure calculation are realized, and the 433 network communication is realized. It works in coordination with the Android core module circuit to realize the network transmission of environmental data, screen display and other functions.

[0028] The gyroscope circuit includes a gyroscope chip U1, wherein pins 2 and 8 of the gyroscope chip U1 are grounded, pin 3 of the gyroscope chip U1 is connected to pin 39 of the single-chip microcomputer chip IC1, and pin 18 of the gyroscope chip U1 is connected to pin 40 of the single-chip microcomputer chip IC1. The angular velocity, i.e., the speed at which an object rotates around a certain axis, is measured by the gyroscope chip U1. When the particles inside the MEMS gyroscope move radially under the action of a driving force, if there is an external angular velocity, a Coriolis force perpendicular to the direction of movement will be generated, and this force will cause the particles to shift laterally. Pin 3 of the gyroscope chip U1 is connected to pin 39 of the single-chip microcomputer IC1 for transmitting data signals, so that the single-chip microcomputer IC1 can read the angular velocity data obtained from the gyroscope.

[0029] The flash circuit includes a flash chip IC5, pins 7 and 8 of the flash chip IC5 are both connected to a 3.3V voltage, pin 1 of the flash chip IC5 is connected to pin 14 of the single-chip chip IC1, pin 2 of the flash chip IC5 is connected to pin 22 of the single-chip chip IC1, and pins 5 and 6 of the flash chip IC5 are respectively connected to pins 23 and 21 of the single-chip chip IC1. The Flash circuit is a non-volatile memory used to store program code and fixed data in the STM32 single-chip microcomputer, thereby realizing persistent storage of code and data, and keeping data from being lost even in the event of a power outage.

[0030] The wireless communication module includes a wireless chip U2, a resistor R45 and a light-emitting diode D10 are connected in series between the 16th and 17th pins of the wireless chip U2, the 24th pin of the wireless chip U2 is connected to a resistor R6 having one end connected to the single-chip chip IC1, and the 48th pin of the wireless chip U2 is connected to a connector J11 for connecting a radio frequency chip. Through the setting of the connector J11, the wireless chip U2 can process the signal from the radio frequency chip and realize more complex wireless communication tasks such as frequency conversion and signal enhancement. The wireless communication module enables the system to be connected to the China Earthquake Early Warning Network through a wireless network and receive earthquake intensity rapid report information in real time. When it is monitored that the intensity of an earthquake wave reaching the destination exceeds a set threshold, an audible and visual alarm is issued in advance before the destructive earthquake wave arrives.

[0031] The UPS power supply includes a control chip IC7, pin 3 of the control chip IC7 is connected to an indicator light D6, pin 5 of the control chip IC7 is connected to an indicator light D5, pin 16 of the control chip IC7 is connected to a switch tube Q3, pin 2 of the switch tube Q3 is connected to a diode D2, one end of the diode D2 is connected to a diode D3 and an inductor L2, one end of the inductor L2 is connected to a resistor R22, one end of the resistor R22 is connected to a solar panel, pin 9 of the control chip IC7 is connected in series with a resistor R19 and a capacitor C17, one end of the capacitor C17 is grounded, and the UPS also includes a battery (mostly a lead-acid or lithium-ion battery), a rectifier, an inverter and a static switch as core components. The solar panel converts light energy into electrical energy, and then uses the control chip IC7 to transmit the converted electrical energy to the battery for storage. The rectifier is responsible for converting the input alternating current (AC) into direct current (DC), and the inverter converts the DC back to AC for use by the equipment. Under normal circumstances, the UPS receives power input through the rectifier and converts it into DC, part of which is used to directly supply the load and the other part is used to charge the battery. When the mains power is unavailable, the energy stored in the battery is converted into AC through the inverter and continues to supply power to the connected equipment, effectively reducing the risk of data loss.

[0032] The seismic detector has a built-in high-precision MEMS (microelectronic acceleration) module. Based on the fact that the longitudinal wave of seismic waves propagates faster than the transverse wave in the earth, it can monitor the local longitudinal wave vibration in real time. When the threshold is reached, the sound and light alarm will be issued in advance before the more destructive transverse wave arrives. (There are three types of seismic wave propagation in the earth: longitudinal wave, transverse wave and surface wave. Longitudinal waves are propulsion waves. Waves whose vibration direction is consistent with the propagation direction of seismic waves are called longitudinal waves (P waves). The propagation speed in the earth's crust is 5.5 to 7 km / s. They are the first to arrive at the epicenter, causing the ground to vibrate up and down, and are less destructive. Transverse waves are shear waves: longitudinal waves from underground cause the ground to vibrate up and down. Waves whose vibration direction is perpendicular to the propagation direction are called transverse waves (S waves). Transverse waves from underground can cause horizontal shaking of the ground. The propagation speed in the earth's crust is 3.2 to 4.0 km / s. They are the second to arrive at the epicenter, causing the ground to shake back and forth and left and right, and are more destructive. Surface waves are also called L waves. Seismic waves that propagate along the ground are called surface waves, which are divided into Love waves, Surface waves, and L waves. Waves and Rayleigh waves. They are mixed waves generated by the encounter of longitudinal waves and transverse waves on the surface. They have large wavelengths and strong amplitudes and can only propagate along the surface. When body waves reach the interface of rock layers or the surface, they will generate waves with large amplitudes that propagate along the interface or the surface. The propagation speed of surface waves is lower than that of transverse waves, so they follow behind transverse waves and are the main factor causing severe damage to buildings. Since the propagation speed of longitudinal waves inside the earth is higher than that of transverse waves, during an earthquake, longitudinal waves always reach the surface first, while transverse waves always lag behind. In this way, when a large near-earthquake occurs, people generally feel up and down bumps first, and only after a few seconds to more than ten seconds do they feel strong horizontal shaking. Transverse waves are the main cause of damage.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Earthquake early warning and aftershock monitoring system at earthquake rescue site, characterized by: It includes a display screen host for network reception, calculation and large-screen display of seismic data, three seismic detectors with built-in high-precision MEMS modules for seismic signal detection, and a UPS power supply for providing power to the display screen host and the seismic detectors. The three seismic detectors are electrically connected to the display screen host. The installation distance of the three seismic detectors is 1000±50 meters. The display screen host is electrically connected to a tweeter and a four-color alarm light. The display screen host comprises a processing module, a network interface module, a single-chip STM32 circuit module and a wireless communication module, and the network interface module, the single-chip STM32 circuit module and the wireless communication module are all electrically connected to the processing module.

2. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 1, characterized in that: The processing module includes a microprocessor chip U1C, pin 2 of the microprocessor chip U1C is connected to a capacitor C29, one end of the capacitor C29 is connected to a connection terminal J1 for connecting a wireless communication module, pin 31 of the microprocessor chip U1C is connected to a ground capacitor C30, and pin 33 of the microprocessor chip U1C is connected to a ground capacitor C31.

3. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 2, characterized in that: The network interface module includes a network port transformer T1 and a connection interface J6 connected to the network port transformer T1, pin 1 of the network port transformer T1 is connected to a resistor R22, pin 3 of the network port transformer T1 is connected to a resistor R23, pin 2 of the network port transformer T1 is connected to pin 2 and pin 7 are connected in parallel with a capacitor C34 and a capacitor C33 to ground, pin 6 of the network port transformer T1 is connected to a resistor R24, and pin 8 of the network port transformer T1 is connected to a resistor R25, and one end of the resistor R24 ​​and one end of the resistor R25 are both grounded.

4. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 3, characterized in that: The single-chip STM32 circuit module includes a single-chip chip IC1, pin 60 of the single-chip chip IC1 is connected to a ground resistor R1, pin 7 of the single-chip chip IC1 is connected to a resistor R2, one end of the resistor R2 is connected to pins 32, 48, 64 and 19 of the single-chip chip IC1, and the single-chip chip IC1 is also connected to a gyroscope circuit, a flash circuit and a storage circuit.

5. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 4, characterized in that: The gyroscope circuit includes a gyroscope chip U1, pins 2 and 8 of the gyroscope chip U1 are grounded, pin 3 of the gyroscope chip U1 is connected to pin 39 of the single-chip microcomputer chip IC1, and pin 18 of the gyroscope chip U1 is connected to pin 40 of the single-chip microcomputer chip IC1.

6. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 5, characterized in that: The flash circuit includes a flash chip IC5, pins 7 and 8 of the flash chip IC5 are both connected to a 3.3V voltage, pin 1 of the flash chip IC5 is connected to pin 14 of the single-chip chip IC1, pin 2 of the flash chip IC5 is connected to pin 22 of the single-chip chip IC1, and pins 5 and 6 of the flash chip IC5 are respectively connected to pins 23 and 21 of the single-chip chip IC1.

7. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 6, characterized in that: The wireless communication module includes a wireless chip U2, a resistor R45 and a light-emitting diode D10 are connected in series between pins 16 and 17 of the wireless chip U2, a resistor R6 with one end connected to a single-chip microcomputer chip IC1 is connected to pin 24 of the wireless chip U2, and a connector J11 for connecting a radio frequency chip is connected to pin 48 of the wireless chip U2.

8. The earthquake early warning and aftershock monitoring system for earthquake rescue sites according to claim 7, characterized in that: The UPS power supply includes a control chip IC7, pin 3 of the control chip IC7 is connected to an indicator light D6, pin 5 of the control chip IC7 is connected to an indicator light D5, pin 16 of the control chip IC7 is connected to a switch tube Q3, pin 2 of the switch tube Q3 is connected to a diode D2, one end of the diode D2 is connected to a diode D3 and an inductor L2, one end of the inductor L2 is connected to a resistor R22, one end of the resistor R22 is connected to a solar panel, and pin 9 of the control chip IC7 is connected in series with a resistor R19 and a capacitor C17, and one end of the capacitor C17 is grounded.

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