CN115550869A - Efficient sensor signal acquisition and processing device and processing method thereof - Google Patents
Efficient sensor signal acquisition and processing device and processing method thereof Download PDFInfo
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- CN115550869A CN115550869A CN202211233820.6A CN202211233820A CN115550869A CN 115550869 A CN115550869 A CN 115550869A CN 202211233820 A CN202211233820 A CN 202211233820A CN 115550869 A CN115550869 A CN 115550869A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/003—Seismic data acquisition in general, e.g. survey design
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/22—Transmitting seismic signals to recording or processing apparatus
- G01V1/223—Radioseismic systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/10—Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
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Abstract
The invention discloses a high-efficiency sensor signal acquisition and processing device and a processing method thereof, wherein the device comprises a wireless sensor, a wireless receiver, a gateway, a processing sensor, an alarm and a wireless power supply; the wireless sensor is used for acquiring seismic signals, the acquired signals are subjected to denoising processing, the signals reaching an early warning value are subjected to early warning, simple denoising processing is performed on the signals through the GPS front-end module, the simply processed signals are transmitted to the processing sensor, interference signals and noise are removed through inherent modal decomposition, the remaining signals are reconstructed, the accuracy of the signals is improved, the reconstructed signals are transmitted into the alarm to reach the early warning value, and the alarm gives an alarm, so that early warning is performed on the occurrence of secondary seismic disasters, and the loss of the secondary disasters can be reduced to the minimum.
Description
Technical Field
The invention relates to the technical field of sensor signal acquisition and processing, in particular to a high-efficiency sensor signal acquisition and processing device and a processing method thereof.
Background
The earthquake is a natural phenomenon that earthquake waves are generated during vibration caused in the process of quickly releasing energy from the earth crust, plates on the earth are mutually extruded and collided to cause dislocation and breakage of plate edges and the inside of the plates, and is a main cause of the earthquake, the earthquake is one of natural disasters seriously threatening the safety of human life and property, serious building damage and casualties are often caused, fire, flood, pipeline leakage, diffusion of bacteria and radioactive substances, secondary disasters such as mountain landslide, tsunami, collapse, ground cracks and the like are caused, a large amount of energy is released in a short time after the earthquake occurs, and destructive damage is caused in dozens of seconds or even seconds.
Along with the development of global urbanization, cities gradually become centers of political, economic, cultural and social activities, the urban population density is high, buildings are numerous, sudden earthquakes pose serious threats to the cities, secondary disasters are easy to happen due to rescue work, artificial activities or aftershocks on rescue sites after the earthquakes happen, and personal injuries are caused to rescue workers.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an efficient sensor signal collecting and processing apparatus and a processing method thereof, which solve the problem of insufficient accuracy of detected signals due to excessive noise of collected signals in the conventional sensor signal collecting and processing system.
In order to achieve the purpose of the invention, the invention is realized by the following technical scheme: the utility model provides an efficient sensor signal gathers and processing apparatus, includes wireless sensor, wireless receiver, gateway, processing sensor, alarm and wireless power supply, wireless sensor and wireless receiver wireless connection, wireless receiver passes through gateway and control sensor wireless connection, control sensor and alarm wireless connection, wireless receiver is equipped with a plurality ofly and wherein at least one has GPS front end module, wireless receiver arranges in equipment package and discernment processing comes from the signal that wireless sensor detected, the gateway accepts wireless sensor's signal with wireless mode to turn into the signal of processing sensor discernment processing with the signal of accepting, processing sensor gathers from the signal of gateway input through the gateway and comes controlgear package and discernment processing gateway conversion's signal, the alarm carries out the early warning according to the signal after the control sensor is handled, wireless power supply provides electric power for wireless sensor with wireless mode.
The further improvement is that: the wireless sensors are provided in plural and assigned with priorities, respectively, and the wireless sensors with the high priorities are arranged at installation positions adjacent to the wireless power supply.
The further improvement lies in that: the wireless sensor comprises a control sensor, an alarm sensor and a closing sensor, wherein the control sensor, the alarm sensor and the closing sensor are arranged at the installation position adjacent to the wireless power supply.
The further improvement lies in that: the wireless sensor is controlled by the processing sensor in a wireless mode, and the processing sensor sends processed signals to the storage module and the display module in a wireless mode.
The further improvement lies in that: the signals detected by the wireless sensor comprise vibration signals and acceleration signals, the GPS front-end module is an ALM-1912GPS front-end module, and the signals detected by the wireless sensor are subjected to denoising processing in the ALM-1912GPS front-end module at the front end of the wireless receiver.
The further improvement lies in that: the processing sensor comprises an EMD empirical mode decomposition module, a signal reconstruction module and a Carl filtering module, wherein the Carl filtering module is connected with the EMD empirical mode decomposition module through the signal reconstruction module.
The further improvement lies in that: the processing sensor decomposes the signals transmitted by the gateway through the EMD empirical mode decomposition module, reconstructs the decomposed signals through the signal reconstruction module, and performs Carl filtering and noise reduction on the reconstructed signals through the Carl filtering module.
The further improvement lies in that: the EMD empirical mode decomposition module filters noise decomposed from signals transmitted by the gateway through a preset program, and the Carl filtering module filters the reconstructed signals and then transmits the signals to the alarm.
A processing method of an efficient sensor signal acquisition and processing device comprises the following steps: the wireless signal sensed by the wireless sensor in the earthquake disaster site is received by the wireless receiver, the influence of low noise on the wireless signal is filtered by a GPS chip at the front end of the wireless receiver, the low-noise wireless signal is filtered and transmitted to the gateway, the received signal is converted into a signal which can be identified and processed by the processing sensor, the signal converted by the gateway is received by an EMD empirical mode decomposition module in the processing sensor, EMD or EEMD empirical mode decomposition is carried out, the decomposed signal is transmitted into a signal reconstruction module to be reconstructed to form a new signal, the reconstructed signal is transmitted into a Carl filtering module to carry out Carl filtering on the signal, noise is removed, a real signal is restored, the Carl filtered signal is transmitted into the alarm, the alarm compares the received signal with a given parameter, the signal reaching the alarm value is alarmed, the data which does not reach the alarm value is automatically stored, and the compared signal is stored in a storage module of the device and is displayed on a display module.
The beneficial effects of the invention are as follows: the earthquake early warning system comprises a wireless sensor, a wireless receiver, a gateway, a processing sensor, an alarm and a wireless power supply, wherein the wireless sensor is used for acquiring earthquake signals, the acquired signals are subjected to denoising processing to obtain signals with early warning values, early warning is carried out, the signals are subjected to simple denoising processing through a GPS front-end module, the simply processed signals are transmitted to the processing sensor, interference signals and noises are removed through inherent modal decomposition, the rest signals are reconstructed, the accuracy of the signals is improved, the reconstructed signals are transmitted into the alarm to obtain the early warning values, and the alarm gives an alarm again, so that early warning for occurrence of secondary earthquake disasters is realized, and loss of the secondary disasters can be reduced to the minimum.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of the apparatus of the present invention;
FIG. 2 is a flow chart of sensor signal processing according to a second embodiment of the present invention;
fig. 3 is a flow chart of sensor signal processing according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the embodiment provides an efficient sensor signal collecting and processing device, which includes a wireless sensor, a wireless receiver, a gateway, a processing sensor, an alarm and a wireless power supply, wherein the wireless sensor is disposed at an earthquake disaster site to sense an earthquake signal and is wirelessly connected with the wireless receiver, the wireless receiver receives the signal sensed by the wireless sensor and is wirelessly connected with the control sensor through the gateway, the control sensor identifies and processes the sensing signal transmitted by the gateway and is wirelessly connected with the alarm, the wireless receiver is provided with an ALM-1912GPS front-end module for removing a low noise interference signal, the wireless receiver is disposed in an equipment package and identifies and processes the signal detected by the wireless sensor, the gateway receives the signal of the wireless sensor in a wireless manner and converts the received signal into the signal identifiable and processed by the processing sensor, the processing sensor collects the signal input from the gateway to control the equipment package and identifies and processes the signal converted by the gateway, the alarm performs early warning according to the signal processed by the control sensor, and the wireless power supply wirelessly provides power for the wireless sensor.
Wireless sensors are assigned priorities, respectively, and the wireless sensors having the high priorities are disposed at installation positions adjacent to the wireless power supply.
The wireless sensor comprises a control sensor, an alarm sensor and a closing sensor, and the control sensor, the alarm sensor and the closing sensor are arranged at the installation position adjacent to the wireless power supply.
The efficient sensor signal acquisition and processing device further comprises a storage module and a display device, the processing sensor controls the wireless sensor in a wireless mode, and the processing sensor sends processed signals to the storage module and the display module in a wireless mode.
The signals detected by the wireless sensor comprise vibration signals and acceleration signals, and the signals detected by the wireless sensor are subjected to denoising processing in an ALM-1912GPS front-end module at the front end of the wireless receiver.
The processing sensor comprises an EMD empirical mode decomposition module, a signal reconstruction module and a Carl filtering module, wherein the Carl filtering module is connected with the EMD empirical mode decomposition module through the signal reconstruction module.
The processing sensor decomposes the signals transmitted by the gateway through the EMD empirical mode decomposition module, reconstructs the decomposed signals through the signal reconstruction module, and performs Carl filtering and noise reduction on the reconstructed signals through the Carl filtering module.
The EMD empirical mode decomposition module filters noise decomposed from signals transmitted by the gateway through a preset program, and the Carl filtering module filters the reconstructed signals and then transmits the signals to the alarm.
Example two
Referring to fig. 2, a processing method of an efficient sensor signal collecting and processing device includes the following steps: the wireless signal sensed by a wireless sensor in an earthquake disaster site is received by a wireless receiver, the influence of low noise on the wireless signal is filtered by a GPS chip at the front end of the wireless receiver, the low-noise wireless signal is filtered and transmitted to a gateway, the received signal is converted into a signal which can be identified and processed by a processing sensor, the signal converted by the gateway is received by an EMD empirical mode decomposition module in the processing sensor, EMD empirical mode decomposition is carried out, at least one point of noise is filtered out in each decomposition to form an IMF signal, the IMF signal is subjected to multiple empirical mode decomposition to meet the requirement of a termination program, the decomposition of the signal is stopped, the signal is composed of a plurality of IMFs and noises, the decomposed noise is filtered by a preset program, the decomposed signal is transmitted to a signal reconstruction module to be reconstructed to form a new signal, the reconstructed signal is transmitted to a Carl filtering module, carl filtering is carried out on the signal to remove the noise, the real signal is restored, the Carl filtered signal is transmitted to an alarm, the received signal is compared with the given signal to alarm value, the alarm value is automatically stored, and finally the comparison parameter is stored in a storage module and displayed in a display module.
EXAMPLE III
Referring to fig. 3, a processing method of an efficient sensor signal collecting and processing device includes the following steps: the wireless signal sensed by a wireless sensor in an earthquake disaster site is received by a wireless receiver, the influence of low noise on the wireless signal is filtered by a GPS chip at the front end of the wireless receiver, the low-noise wireless signal is filtered and transmitted to a gateway, the received signal is converted into a signal which can be identified and processed by a processing sensor, the signal converted by the gateway is received by an EMD empirical mode decomposition module in the processing sensor, EEMD empirical mode decomposition is carried out, at least one point of noise is filtered out in each decomposition to form an IMF signal, the IMF signal is subjected to repeated empirical mode decomposition to meet the requirement of a termination program, the decomposition of the signal is stopped, the signal is composed of a plurality of IMFs and noises, the decomposed noise is filtered by a preset program, the decomposed signal is transmitted to a signal reconstruction module to be reconstructed to form a new signal, the reconstructed signal is transmitted to a Carl filtering module, carl filtering is carried out on the signal to remove the noise, the real signal is restored, the Carl filtered signal is transmitted to an alarm, the received signal is compared with the given signal to alarm value, the alarm value is automatically stored, and finally the comparison parameter is stored in a storage module and displayed in a display module.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides an efficient sensor signal gathers and processing apparatus which characterized in that: including wireless sensor, wireless receiver, gateway, processing sensor, alarm and wireless power supply, wireless sensor and wireless receiver wireless connection, wireless receiver passes through gateway and control sensor wireless connection, control sensor and alarm wireless connection, wireless receiver is equipped with a plurality ofly and at least one of them has GPS front end module, wireless receiver arranges in equipment package and discernment processing comes the signal that wireless sensor detected to obtain, the gateway accepts wireless sensor's signal with wireless mode to turn into the signal of processing sensor discernment processing with the signal of accepting, processing sensor gathers from the signal of gateway input through the gateway and comes controlgear package and discernment processing gateway conversion's signal, the alarm carries out the early warning according to the signal after control sensor handles, wireless power supply provides electric power for wireless sensor with wireless mode.
2. A high efficiency sensor signal acquisition and processing device as set forth in claim 1, wherein: the wireless sensors are provided in plural and assigned with priorities, respectively, and the wireless sensors with the high priorities are arranged at installation positions adjacent to the wireless power supply.
3. A high efficiency sensor signal acquisition and processing unit, as defined in claim 1, wherein: the wireless sensor includes a control sensor, an alarm sensor, and a turn-off sensor disposed at a mounting location adjacent to the wireless power supply.
4. A high efficiency sensor signal acquisition and processing unit, as defined in claim 1, wherein: the wireless sensor is controlled by the processing sensor in a wireless mode, and the processing sensor sends processed signals to the storage module and the display module in a wireless mode.
5. A high efficiency sensor signal acquisition and processing unit, as defined in claim 1, wherein: the signals detected by the wireless sensor comprise vibration signals and acceleration signals, the GPS front-end module is an ALM-1912GPS front-end module, and the signals detected by the wireless sensor are subjected to denoising processing in the ALM-1912GPS front-end module at the front end of the wireless receiver.
6. A high efficiency sensor signal acquisition and processing device as set forth in claim 1, wherein: the processing sensor comprises an EMD empirical mode decomposition module, a signal reconstruction module and a Carl filtering module, wherein the Carl filtering module is connected with the EMD empirical mode decomposition module through the signal reconstruction module.
7. A high efficiency sensor signal acquisition and processing unit, as defined in claim 1, wherein: the processing sensor decomposes the signals transmitted by the gateway through the EMD empirical mode decomposition module, reconstructs the decomposed signals through the signal reconstruction module, and performs Carl filtering and noise reduction on the reconstructed signals through the Carl filtering module.
8. A high efficiency sensor signal acquisition and processing device as set forth in claim 1, wherein: the EMD empirical mode decomposition module filters noise decomposed from signals transmitted by the gateway through a preset program, and the Carl filtering module filters the reconstructed signals and then transmits the filtered signals to the alarm.
9. A processing method of an efficient sensor signal acquisition and processing device is characterized by comprising the following steps: the wireless signal sensed by the wireless sensor at the earthquake disaster site is received by the wireless receiver, the influence of low noise on the wireless signal is filtered by a GPS chip at the front end of the wireless receiver, the low-noise wireless signal is filtered and transmitted to the gateway, the received signal is converted into a signal which can be identified and processed by the processing sensor, the signal converted by the gateway is received by an EMD empirical mode decomposition module in the processing sensor, EMD or EEMD empirical mode decomposition is carried out, the decomposed signal is transmitted into a signal reconstruction module to be reconstructed to form a new signal, the reconstructed signal is transmitted into a Carl filtering module to carry out Carl filtering on the signal, noise is removed, a real signal is restored, the Carl filtered signal is transmitted into an alarm, the received signal is compared with a given parameter by the alarm, the signal reaching the alarm value is alarmed, the data which does not reach the alarm value is automatically stored, and the compared signal is stored in a storage module of the device and is displayed on a display module.
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