CN111756393A - Building construction information management system based on Internet of things - Google Patents
Building construction information management system based on Internet of things Download PDFInfo
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- CN111756393A CN111756393A CN202010467914.4A CN202010467914A CN111756393A CN 111756393 A CN111756393 A CN 111756393A CN 202010467914 A CN202010467914 A CN 202010467914A CN 111756393 A CN111756393 A CN 111756393A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
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Abstract
The invention discloses a building construction information management system based on the Internet of things, which comprises a signal sampling module and a noise reduction detection module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction information management system by using a signal sampler J1 with the model of DAM-3056AH, the noise reduction detection module receives the output signal of the signal sampling module, a voltage reduction circuit is formed by using an operational amplifier AR2, a capacitor C1, a capacitor C2 and a resistor RW1 to stabilize a signal waveform, a noise reduction circuit is formed by using an operational amplifier AR3, a capacitor C3 and a capacitor C4 to reduce the signal-to-noise ratio of a loop, a peak value circuit is formed by using an operational amplifier AR2, a diode D4 and a diode D5 to sample a peak value signal at the inverting input end of the operational amplifier AR2, two paths of signal potentials are detected by using a diode D2, signals are fed back to the inverting input end of the operational amplifier AR3 and an anomaly detection, and finally, the building construction information management system terminal receives the signal and adjusts the frequency of the wireless transmission building construction information in time.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a building construction information management system based on the Internet of things.
Background
The internet of things is an important component of a new generation of information technology and is also an important development stage of an 'informatization' era, building construction and the internet of things are combined, building construction state data management efficiency is improved, meanwhile, building construction data need to be monitored in real time according to a construction state, data deviation in building construction is avoided, however, monitoring of building construction needs to transmit a large amount of data information in real time, data accuracy must be guaranteed, particularly in the middle construction period, data signals need to guarantee real-time performance and accuracy, data accuracy and safety are guaranteed, however, same bandwidth or similar bandwidth interference can occur when building construction information is transmitted in a wireless mode, and signals received by a building construction information management system terminal are easily lost.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a building construction information management system based on the internet of things, which can sample and adjust node signals in the building construction information management system and convert the node signals into correction trigger signals of a building construction information management system terminal.
The technical scheme includes that the building construction information management system based on the Internet of things comprises a signal sampling module and a noise reduction detection module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction information management system by using a signal sampler J1 with the model of DAM-3056AH, the noise reduction detection module receives the output signal of the signal sampling module, and the output signal of the noise reduction detection module is sent to a building construction information management system terminal through a signal transmitter E1;
the noise reduction detection module comprises an operational amplifier AR2, the non-inverting input end of the operational amplifier AR2 is connected with one point of a resistor R5, the other end of the resistor R5 is connected with one end of a capacitor C1, the other end of a capacitor C1 is connected with a resistor R7, one end of the capacitor C7, the anode of a silicon controlled rectifier D7 and the output port of the signal sampling module, the other end of the resistor R7 is grounded, the inverting input end of the operational amplifier AR 7 is connected with one end of the resistor R7 and one end of the resistor RW 7, the other end of the resistor R7 is connected with the other end of the capacitor C7, the output end of the operational amplifier AR 7 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with one end of the resistor R7 and one end of the capacitor C7, the other end of the resistor R7 is grounded, the inverting input end of the operational amplifier AR 7 is connected with the non-inverting input end of the resistor R7 and the output end of the operational amplifier AR 7 is connected with the ground, and the, One end of an inductor L1 and the other end of a capacitor C1, the other end of a resistor RW1 is connected to one end of a resistor R1, the anode of a diode D1 and the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to ground, the output end of the operational amplifier AR1 is connected to the cathode of the diode D1 and the anode of the diode D1, the other end of the resistor R1 is connected to the control electrode of a thyristor D1, the cathode of the thyristor D1 is connected to the cathode of the diode D1, the inverting input end of the operational amplifier AR1 and the resistor R1, one end of the capacitor C1, the other end of the resistor R1 is connected to the anode of the diode D1, the base of the transistor Q1 is connected to the collector of the transistor Q1 and the cathode of the transistor D1, and the emitter of the transistor R1 is connected to the voltage regulator 1, and the collector of the transistor Q1, the collector of the transistor Q36, the other end of the resistor R18 is connected with the anode of the voltage regulator tube D6, the other end of the resistor R12, the other end of the inductor L1 and the non-inverting input end of the operational amplifier AR5, the inverting input end of the operational amplifier AR5 is connected with one end of the resistor R13 and one end of the resistor R14, the other end of the resistor R13 is grounded, the other end of the resistor R14 is connected with the output end of the operational amplifier AR5 and one end of the resistor R15, and the other end of the resistor R15 is connected with the signal transmitter E1.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. the operational amplifier AR2, the capacitor C1, the capacitor C2 and the resistor RW1 are used for forming a voltage reduction circuit to stabilize signal waveforms, the capacitor C1 and the capacitor C2 are used as decoupling capacitors to reduce the signal-to-noise ratio, the operational amplifier AR2 is convenient to compare source signals to avoid signal distortion, meanwhile, the signal amplitude is reduced, in order to prevent the same bandwidth or similar bandwidth interference from occurring when the building construction information is wirelessly transmitted, the operational amplifier AR3, the capacitor C3 and the capacitor C4 are used for forming a noise reduction circuit to reduce the loop signal-to-noise ratio, the capacitor C3 is a decoupling capacitor to reduce the output signal-to-noise ratio of the operational amplifier AR3, meanwhile, the capacitor C4 is a bypass capacitor, so that the interference of the in-phase input end of the operational amplifier AR3 is reduced, the anti-interference of the output signal of the operational amplifier AR3 is improved, then, the inductor L1 is used for generating resonance with the signal, so that the voltage at two ends of the resistor R12 is increased, the signal pulse is widened, the signal load capacity is improved, and the signal receiving efficiency of the building construction information management system terminal is improved conveniently;
2. a peak value circuit consisting of an operational amplifier AR4, a diode D4 and a diode D5 is used for sampling a peak value signal at the inverting input end of an operational amplifier AR2, the peak value signal is conveniently used as a calibration signal of a signal potential at the next step, then an abnormality detection circuit consisting of a triode Q2 and a triode Q3 is used for detecting an abnormal signal, only when the peak value signal is abnormal, the triode Q2 and the triode Q3 are triggered to be conducted, a feedback signal is sent to the inverting input end of the operational amplifier AR5, namely, the signal potential received by a building construction information management system terminal is adjusted, in order to further ensure the accuracy of the signal, the diode D2 is used for detecting the signal potentials of two paths, the feedback signal is sent to the inverting input end of the operational amplifier AR3 and the abnormality detection circuit, the output signal potential of the operational amplifier AR3 and the conducting voltage value of the abnormality detection circuit are respectively adjusted, so that the, and finally, the operational amplifier AR5 amplifies the signals in phase and sends the amplified signals to the building construction information management system terminal through the signal transmitter E1, and the building construction information management system terminal receives the signals and adjusts the frequency of the wireless transmission building construction information in time.
Drawings
Fig. 1 is a schematic diagram of a building construction information management system based on the internet of things.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The building construction information management system based on the Internet of things comprises a signal sampling module and a noise reduction detection module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction information management system by using a signal sampler J1 with the model of DAM-3056AH, the noise reduction detection module receives the output signal of the signal sampling module, and the output signal of the noise reduction detection module is sent to a terminal of the building construction information management system through a signal transmitter E1;
the noise reduction detection module receives signals output by the signal sampling module in two paths, one path of the noise reduction detection module utilizes an operational amplifier AR2, a capacitor C1, a capacitor C2 and a resistor RW1 to form a voltage reduction circuit to stabilize signal waveforms, the capacitor C1 and the capacitor C2 are decoupling capacitors to reduce the signal-to-noise ratio, the operational amplifier AR2 is convenient to compare source signals, signal distortion is avoided, signal amplitude is reduced, in order to prevent interference of the same bandwidth or similar bandwidth during wireless transmission of building construction information, the operational amplifier AR3, the capacitor C3 and the capacitor C4 are utilized to form a noise reduction circuit to reduce the loop signal-to-noise ratio, the capacitor C3 is a decoupling capacitor to reduce the signal-to-noise ratio output by the operational amplifier AR3, meanwhile, the capacitor C4 is a bypass capacitor to reduce interference of the non-phase input end of the operational amplifier AR3, so that the anti-interference of signals output by the operational amplifier AR3 is improved, and then, further widening signal pulse, improving signal load capacity and facilitating improvement of efficiency of receiving signals by a building construction information management system terminal, sampling peak signals at an inverting input end of an operational amplifier AR2 by a peak circuit formed by two paths of operational amplifiers AR4, a diode D4 and a diode D5, facilitating next step of utilizing the peak signals as calibration signals of one path of signal potential, detecting abnormal signals by an abnormal detection circuit formed by a triode Q2 and a triode Q3, triggering the triode Q2 and the triode Q3 to be conducted only when the peak signals are abnormal, feeding back signals to an non-inverting input end of the operational amplifier AR5, namely adjusting signal potential received by the building construction information management system terminal, detecting two paths of signal potential by a diode D2 in order to further ensure signal accuracy, feeding back signals to the inverting input end of the operational amplifier AR3 and the abnormal detection circuit, respectively adjusting signal potential output by the operational amplifier AR3, adjusting the conduction voltage value of the abnormality detection circuit to further adjust the amplitude of the output signal of the operational amplifier AR5, and finally sending the in-phase amplified signal of the operational amplifier AR5 to a building construction information management system terminal through a signal emitter E1;
the noise reduction detection module has a specific structure that a non-inverting input end of an operational amplifier AR2 is connected with one point of a resistor R5, the other end of a resistor R5 is connected with one end of a capacitor C1, the other end of a capacitor C1 is connected with one end of a resistor R7, one end of a capacitor C2, the anode of a silicon controlled rectifier D2 and an output port of a signal sampling module, the other end of a resistor R7 is grounded, an inverting input end of the operational amplifier AR2 is connected with one end of a resistor R2 and one end of a resistor RW 2, the other end of the resistor R2 is connected with the other end of the capacitor C2, the output end of the operational amplifier AR2 is connected with one end of the resistor R2, the other end of the resistor R2 and one end of the capacitor C2, the other end of the resistor R2 is connected with the other end of the resistor R2, and the other end of the operational amplifier AR2 is connected with the other end of the resistor R2, the resistor R2 is connected with the ground, and the other end of the output, One end of an inductor L1 and the other end of a capacitor C1, the other end of a resistor RW1 is connected to one end of a resistor R1, the anode of a diode D1 and the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to ground, the output end of the operational amplifier AR1 is connected to the cathode of the diode D1 and the anode of the diode D1, the other end of the resistor R1 is connected to the control electrode of a thyristor D1, the cathode of the thyristor D1 is connected to the cathode of the diode D1, the inverting input end of the operational amplifier AR1 and the resistor R1, one end of the capacitor C1, the other end of the resistor R1 is connected to the anode of the diode D1, the base of the transistor Q1 is connected to the collector of the transistor Q1 and the cathode of the transistor D1, and the emitter of the transistor R1 is connected to the voltage regulator 1, and the collector of the transistor Q1, the collector of the transistor Q36, the other end of the resistor R18 is connected with the anode of the voltage regulator tube D6, the other end of the resistor R12, the other end of the inductor L1 and the non-inverting input end of the operational amplifier AR5, the inverting input end of the operational amplifier AR5 is connected with one end of the resistor R13 and one end of the resistor R14, the other end of the resistor R13 is grounded, the other end of the resistor R14 is connected with the output end of the operational amplifier AR5 and one end of the resistor R15, and the other end of the resistor R15 is connected with the signal transmitter E1.
In the second embodiment, on the basis of the first embodiment, the signal sampling module samples an output signal of a signal acquisition device in the building construction information management system by using a signal sampler J1 with a model of DAM-3056AH, the operational amplifier AR1 amplifies the signal, a power supply terminal of the signal sampler J1 is connected to +5V, a ground terminal of the signal sampler J1 is grounded, an output terminal of the signal sampler J1 is connected to a negative electrode of the voltage regulator tube D1 and a non-inverting input terminal of the operational amplifier AR1, a positive electrode of the voltage regulator tube D1 is grounded, an inverting input terminal of the operational amplifier AR1 is connected to one end of the resistor R1 and the resistor R2, the other end of the resistor R1 is grounded, and an output terminal of the operational amplifier AR1 is connected to the other end of the resistor R2 and.
The invention particularly discloses a building construction information management system based on the Internet of things, which comprises a signal sampling module and a noise reduction detection module, wherein the signal sampling module uses a signal sampler J1 with the model of DAM-3056AH to sample signals output by signal acquisition equipment in the building construction information management system, the noise reduction detection module receives the signals output by the signal sampling module in two paths, one path uses an operational amplifier AR2, a capacitor C1, a capacitor C2 and a resistor RW1 to form a voltage reduction circuit to stabilize signal waveforms, the capacitors C1 and C2 are decoupling capacitors to reduce the signal-to-noise ratio, the operational amplifier AR2 is convenient to compare source signals, signal distortion is avoided, the signal amplitude is reduced, in order to prevent the same bandwidth or similar bandwidth interference from occurring when building construction information is wirelessly transmitted, the operational amplifier AR3, the capacitor C3 and the capacitor C4 are used to form a noise reduction circuit to reduce the signal-to-noise ratio, the capacitor C3 is a decoupling capacitor, the signal-to-noise ratio output by the operational amplifier AR3 is reduced, meanwhile, the capacitor C4 is a bypass capacitor, the interference of the in-phase input end of the operational amplifier AR3 is reduced, so that the anti-interference performance of the output signal of the operational amplifier AR3 is improved, then, the inductor L1 is used for resonating with the signal, so that the voltage at two ends of the resistor R12 is raised, further, signal pulses are widened, the signal load capacity is improved, the efficiency of receiving the signal at the terminal of the building construction information management system is improved, two circuits use the operational amplifier AR4, the diode D4 and the diode D5 to form a peak circuit to sample the peak signal at the anti-phase input end of the operational amplifier AR2, the peak signal is conveniently used as a calibration signal of one circuit signal potential, then, the triode Q2 and the triode Q3 are used for forming an abnormality detection circuit to detect abnormal signals, only when the peak signal is abnormal, namely, the received signal potential of the building construction information management system terminal is adjusted, in order to further ensure the accuracy of the signal, two paths of signal potentials are detected by using a diode D2, a feedback signal is fed into the inverting input end of the operational amplifier AR3 and the abnormity detection circuit, the output signal potential of the operational amplifier AR3 is respectively adjusted, the conduction voltage value of the abnormity detection circuit is adjusted, the effect of further adjusting the amplitude of the output signal of the operational amplifier AR5 is realized, and finally, the operational amplifier AR5 amplifies the signal in phase and sends the amplified signal to the building construction information management system terminal through a signal emitter E1.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (2)
1. A building construction information management system based on the Internet of things comprises a signal sampling module and a noise reduction detection module, and is characterized in that the signal sampling module samples an output signal of signal acquisition equipment in the building construction information management system by using a signal sampler J1 with the model of DAM-3056AH, the noise reduction detection module receives the output signal of the signal sampling module, and the output signal of the noise reduction detection module is sent to a building construction information management system terminal through a signal transmitter E1;
the noise reduction detection module comprises an operational amplifier AR2, the non-inverting input end of the operational amplifier AR2 is connected with one point of a resistor R5, the other end of the resistor R5 is connected with one end of a capacitor C1, the other end of a capacitor C1 is connected with a resistor R7, one end of the capacitor C7, the anode of a silicon controlled rectifier D7 and the output port of the signal sampling module, the other end of the resistor R7 is grounded, the inverting input end of the operational amplifier AR 7 is connected with one end of the resistor R7 and one end of the resistor RW 7, the other end of the resistor R7 is connected with the other end of the capacitor C7, the output end of the operational amplifier AR 7 is connected with one end of the resistor R7, the other end of the resistor R7 is connected with one end of the resistor R7 and one end of the capacitor C7, the other end of the resistor R7 is grounded, the inverting input end of the operational amplifier AR 7 is connected with the non-inverting input end of the resistor R7 and the output end of the operational amplifier AR 7 is connected with the ground, and the, One end of an inductor L1 and the other end of a capacitor C1, the other end of a resistor RW1 is connected to one end of a resistor R1, the anode of a diode D1 and the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to ground, the output end of the operational amplifier AR1 is connected to the cathode of the diode D1 and the anode of the diode D1, the other end of the resistor R1 is connected to the control electrode of a thyristor D1, the cathode of the thyristor D1 is connected to the cathode of the diode D1, the inverting input end of the operational amplifier AR1 and the resistor R1, one end of the capacitor C1, the other end of the resistor R1 is connected to the anode of the diode D1, the base of the transistor Q1 is connected to the collector of the transistor Q1 and the cathode of the transistor D1, and the emitter of the transistor R1 is connected to the voltage regulator 1, and the collector of the transistor Q1, the collector of the transistor Q36, the other end of the resistor R18 is connected with the anode of the voltage regulator tube D6, the other end of the resistor R12, the other end of the inductor L1 and the non-inverting input end of the operational amplifier AR5, the inverting input end of the operational amplifier AR5 is connected with one end of the resistor R13 and one end of the resistor R14, the other end of the resistor R13 is grounded, the other end of the resistor R14 is connected with the output end of the operational amplifier AR5 and one end of the resistor R15, and the other end of the resistor R15 is connected with the signal transmitter E1.
2. The building construction information management system based on the Internet of things as claimed in claim 1, wherein the signal sampling module comprises a DAM-3056AH signal sampler J1, a power supply end of a signal sampler J1 is connected with +5V, a ground end of a signal sampler J1 is connected with ground, an output end of the signal sampler J1 is connected with a negative electrode of a voltage regulator tube D1 and a non-inverting input end of an operational amplifier AR1, an anode of a voltage regulator tube D1 is connected with ground, an inverting input end of the operational amplifier AR1 is connected with one end of a resistor R1 and a resistor R2, the other end of the resistor R1 is connected with ground, and an output end of the operational amplifier AR1 is connected with the other end of the resistor R2 and an input port of the noise.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010467914.4A CN111756393A (en) | 2020-05-28 | 2020-05-28 | Building construction information management system based on Internet of things |
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| CN202010467914.4A CN111756393A (en) | 2020-05-28 | 2020-05-28 | Building construction information management system based on Internet of things |
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| CN202010467914.4A Withdrawn CN111756393A (en) | 2020-05-28 | 2020-05-28 | Building construction information management system based on Internet of things |
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| CN112383315A (en) * | 2020-12-01 | 2021-02-19 | 石家庄铁道大学 | Water inrush safety defense system for high-stress tunnel construction |
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