CN111585541B - Building construction remote monitoring system based on thing networking - Google Patents
Building construction remote monitoring system based on thing networking Download PDFInfo
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- CN111585541B CN111585541B CN202010492817.0A CN202010492817A CN111585541B CN 111585541 B CN111585541 B CN 111585541B CN 202010492817 A CN202010492817 A CN 202010492817A CN 111585541 B CN111585541 B CN 111585541B
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- 238000009435 building construction Methods 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 230000006855 networking Effects 0.000 title description 2
- 238000005070 sampling Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 44
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The invention discloses a building construction remote monitoring system based on the Internet of things, which comprises a signal sampling module and a comparison detection module, the signal sampling module samples the output signal of the signal acquisition equipment in the building construction remote monitoring system by using a signal sampler J1 with the model number of DAM-3056AH, in order to further ensure the accuracy of the signal peak value, one path of the comparison detection module uses a diode D4 to detect the potential difference before and after the frequency modulation circuit, feeds an abnormal signal back to the output end of the operational amplifier AR4, and directly adjusts the peak value of the output signal, and the other path uses a diode D5 to detect the potential difference between the output signal of the rectification circuit and the reference rated signal, the signal is normal, at the moment, the diode D5 is not conducted, the operational amplifier AR5 amplifies the output signal of the operational amplifier AR4, a signal transmitter E1 sends a signal to a building construction remote monitoring system terminal, and the building construction remote monitoring system terminal timely analyzes and responds to.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a building construction remote monitoring system based on the Internet of things.
Background
The Internet of things is an important component of a new generation of information technology, 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, a large amount of data information needs to be transmitted in real time in building construction monitoring, data accuracy must be guaranteed, noise accumulation in actual transmission is an important factor influencing transmission reliability, and signal disorder received by a building construction remote monitoring system based on the Internet of things is easily caused.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide a building construction remote monitoring system based on the internet of things, which can sample and adjust the output signal of the signal acquisition device in the building construction remote monitoring system and convert the output signal into a correction trigger signal of a building construction remote monitoring system terminal.
The technical scheme includes that the building construction remote monitoring system based on the Internet of things comprises a signal sampling module and a comparison detection module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction remote monitoring system by using a signal sampler J1 with the model of DAM-3056AH, the comparison detection module receives the output signal of the signal sampling module, and the output signal of the comparison detection module is sent to a building construction remote monitoring system terminal through a signal transmitter E1;
the comparison detection module comprises a variable resistor RW1, a sliding end of the variable resistor RW1 is connected with a diode D4, an anode of the diode D5 and one end of a capacitor C5, an anode of the variable resistor RW 5 is connected with a cathode of the diode D5, one end of the capacitor C5, the other end of the variable resistor RW 5 is connected with an anode of the diode D5 and one end of the capacitor C5, an anode of the diode D5 is connected with one end of the capacitor C5, the other end of the capacitor C5, a cathode of the diode D5 and an output port of the signal sampling module, a control electrode of the diode D5 is connected with the resistor R5, one end of the resistor R5 and one end of the capacitor C5, the other end of the resistor R5 is connected with an in-phase input end of the AR5 and one end of the capacitor C5, the other end of the capacitor C5 is connected with the ground, and the other end of the anti-phase resistor AR5 of the amplifier AR5 is connected with an input end of the resistor R5, the output end of the operational amplifier AR4 is connected with the other end of the resistor R3, one end of the resistor R4 and the cathode of the diode D4, the control electrode of the diode D5 is connected with the resistor R5, one end of the capacitor C6 and the anode of the voltage regulator tube D6, the other ends of the resistor R5 and the capacitor C6 are grounded, the cathode of the voltage regulator tube D6 is connected with a reference rated signal, namely the rated signal of the signal output by the signal acquisition device, the cathode of the diode D5 is connected with one end of the resistor R6, the other end of the resistor R6 is connected with the anode of the diode D6 and the non-inverting input end of the operational amplifier AR 6, the inverting input end of the operational amplifier AR 6 is connected with one end of the resistor R6, the other end of the resistor R6 is grounded, the output end of the operational amplifier AR 6 is connected with the cathode of the diode D6, the anode of the diode D6, the cathode of the diode D6 is connected with the inverting input end of the resistor R6, the non-inverting input end of the operational amplifier, the output end of the operational amplifier AR5 is connected to the other end of the resistor R8 and the signal transmitter E1.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. because the output signal of the signal sampler J1 with the model of DAM-3056AH is a small signal and is easy to fluctuate, the comparison detection module firstly uses the variable resistor RW1, the diode D3 and the diode D2 to form a rectifying circuit to rectify the signal, the capacitor C1 and the capacitor C2 are decoupling capacitors to reduce the signal noise and stabilize the signal, then the variable resistor RW1 divides the signal voltage to avoid noise accumulation, frequency modulation is needed to be carried out on the signal, the signal frequency is stabilized, the inductor L1 is used to filter high-frequency signal noise, the capacitor C3 and the capacitor C4 are used to filter low-frequency signal noise, so that the effect of filtering signal impurities is realized, the effect of stabilizing the frequency is achieved, the signal waveform is further stabilized, the signal distortion is eliminated by using a phase-shifting mode, and the accuracy of the sampled signal is ensured;
2. in order to further ensure the accuracy of the signal peak value, one way uses diode D4 to detect the potential difference before and after the frequency modulation circuit, feeds back abnormal signals to the output end of the operational amplifier AR4, directly adjusts the output signal peak value, the other way uses diode D5 to detect the potential difference between the output signal of the rectification circuit and the reference rated signal, namely the rated signal of the output signal of the signal acquisition equipment, when the phase difference is too large, the sampling signal is abnormal, the sampling signal at the moment needs to be directly abandoned, the output signal potential of the operational amplifier AR5 is reduced, the operational amplifier AR 1 cannot be triggered to work, namely the abnormal sampling signal at the moment is abandoned, otherwise, the signal is normal, the diode D5 is not conducted at the moment, the operational amplifier AR5 amplifies the output signal of the operational amplifier AR4, the signal transmitter E1 sends a signal to the building construction remote monitoring system terminal, and the building construction remote monitoring system terminal timely analyzes and responds to the signal.
Drawings
Fig. 1 is a module schematic diagram of the building construction remote monitoring 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, which is to be read in connection 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 first embodiment of the invention relates to a building construction remote monitoring system based on the Internet of things, which comprises a signal sampling module and a comparison detection module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction remote monitoring system by using a signal sampler J1 with the model of DAM-3056AH, the comparison detection module receives the output signal of the signal sampling module, and the output signal of the comparison detection module is sent to a building construction remote monitoring system terminal through a signal transmitter E1;
because the output signal of the signal sampler J1 with model number of DAM-3056AH is small and is easy to fluctuate, the comparison detection module firstly uses the rectifier circuit formed by the variable resistor RW1, the diode D3 and the diode D2 to rectify the signal, when the signal is positive, the diode D3 is conducted, otherwise, the diode D2 is conducted, the capacitor C1 and the capacitor C2 are decoupling capacitors to reduce the signal noise and stabilize the signal, then the variable resistor RW1 divides the signal voltage, in order to ensure the anti-interference of signal transmission and avoid noise accumulation, the frequency of the signal needs to be adjusted, the frequency of the signal is stabilized, the inductor L1 is used to filter high-frequency signal noise, the capacitors C3 and C4 are used to filter low-frequency signal noise, thereby realizing the effect of filtering signal impurities and stabilizing the frequency, in order to further stabilize the signal waveform, the signal distortion is eliminated by using a phase shifting method, the accuracy of a sampling signal is ensured, the time difference between the non-inverting input end and the inverting input end of an operational amplifier AR4 is delayed by using a resistor R10 and a capacitor C5, so that the phase shift of an output signal of the operational amplifier AR4 is achieved, a distortion signal in the signal is eliminated, the accuracy of a signal received by a building construction remote monitoring system terminal is ensured, in order to further ensure the accuracy of a signal peak value, one path of the signal peak value is detected by using a diode D4 to detect the potential difference between the front and the back of a frequency modulation circuit, an abnormal signal is fed back to the output end of the operational amplifier AR4 to directly adjust the peak value of the output signal, the other path of the signal peak value is detected by using a diode D5 to detect the potential difference between an output signal of a rectifying circuit and a reference rated signal, namely the rated signal of the output signal of a signal acquisition device, when the phase difference is too large, the sampling signal at the moment is abnormal, the, the potential of the output signal of the operational amplifier AR5 is reduced, so that the operational amplifier AR5 cannot trigger the signal transmitter E1 to work, namely, the abnormal sampling signal at the moment is discarded, the reliability of the signal received by the building construction remote monitoring system terminal is improved, otherwise, the signal is normal, the diode D5 is not conducted at the moment, the operational amplifier AR5 amplifies the output signal of the operational amplifier AR4, and the signal transmitter E1 transmits the signal to the building construction remote monitoring system terminal;
the specific structure of the comparison detection module comprises a variable resistor RW, a diode D, a capacitor C, an inductor L, a diode D, a capacitor C, a capacitor D, a signal sampling module output port, a capacitor C, a resistor R, a capacitor C, a signal sampling module output port, a resistor R, a capacitor R, The negative electrode of the diode D4, the control electrode of the diode D5 is connected with one end of the resistor R5, one end of the capacitor C6 and the positive electrode of the voltage regulator tube D6, the other ends of the resistor R5 and the capacitor C6 are grounded, the negative electrode of the voltage regulator tube D6 is connected with a reference rated signal, namely the rated signal of the output signal of the signal acquisition equipment, the negative electrode of the diode D5 is connected with one end of the resistor R6, the other end of the resistor R6 is connected with the positive electrode of the diode D7 and the non-inverting input end of the operational amplifier AR2, the inverting input end of the operational amplifier AR2 is connected with one end of the resistor R7, the other end of the resistor R7 is grounded, the output end of the, the anode of the diode D8, the cathode of the diode D8 are connected with one end of the resistor R8, one end of the resistor R9 and the inverting input end of the operational amplifier AR5, the other end of the resistor R9 is grounded, the non-inverting input end of the operational amplifier AR5 is connected with the other end of the resistor R4, and the output end of the operational amplifier AR5 is connected with the other end of the resistor R8 and the signal emitter E1.
In the second embodiment, on the basis of the first embodiment, the signal sampling module is a signal sampler J1 with a model of DAM-3056AH, a power supply end of the signal sampler J1 is connected with +5V, a grounding end of the signal sampler J1 is grounded to sample an output signal of a signal acquisition device in the remote monitoring system for building construction, an output end of the signal sampler J1 is connected with a negative electrode of a voltage regulator tube D1 and an input port of the comparison detection module, and a positive electrode of the voltage regulator tube D1 is grounded.
When the invention is used specifically, the building construction remote monitoring system based on the Internet of things comprises a signal sampling module and a comparison detection module, wherein the signal sampling module samples the output signal of a signal acquisition device in the building construction remote monitoring system by using a signal sampler J1 with the model of DAM-3056AH, and because the output signal of the signal sampler J1 with the model of DAM-3056AH is small and is easy to fluctuate, the comparison detection module firstly uses a variable resistor RW1, a diode D3 and a diode D2 to form a rectifying circuit to rectify the signal, when the signal is positive, a diode D3 is conducted, otherwise, a diode D2 is conducted, a capacitor C1 and a capacitor C2 are decoupling capacitors to reduce the signal noise, realize the signal rectifying effect and stabilize the signal, then the variable resistor RW1 divides the signal, in order to ensure the anti-interference of signal transmission and avoid noise accumulation at the same time, the frequency of a signal needs to be modulated, the frequency of the signal is stabilized, high-frequency signal noise is filtered by using an inductor L1, low-frequency signal noise is filtered by using a capacitor C3 and a capacitor C4, so that the effect of filtering signal impurities is achieved, the effect of stabilizing the frequency is achieved, the signal waveform is further stabilized, signal distortion is eliminated by using a phase shifting mode, the accuracy of a sampling signal is ensured, the time difference between the non-inverting input end and the inverting input end of an operational amplifier AR4 is delayed by using a resistor R10 and a capacitor C5, so that the phase shifting of an output signal of the operational amplifier AR4 is achieved, a distorted signal in the signal is eliminated, the accuracy of a signal received by a building construction remote monitoring system terminal is ensured, in order to further ensure the accuracy of a signal peak value, a single-path diode D4 is used for detecting the potential difference between the front and the rear of a frequency modulation circuit, an abnormal signal is fed back to the output end, namely, the rated signal of the output signal of the signal acquisition equipment represents that the sampling signal is abnormal when the phase difference is too large, the sampling signal at the moment needs to be abandoned directly, the peak signal is screened by using the operation amplifier AR2, the diode D7 and the diode D8 to be fed back to the inverting input end of the operation amplifier AR5 directly, the potential of the output signal of the operation amplifier AR5 is reduced, the output signal of the signal transmitter E1 cannot be triggered to work, namely, the abnormal sampling signal at the moment is abandoned, the reliability of the signal received by the building construction remote monitoring system terminal is improved, otherwise, the signal is normal, the diode D5 is not conducted at the moment, the operation amplifier AR5 amplifies the output signal of the operation amplifier AR4, and the signal transmitter E1 sends a signal to the building construction remote monitoring system terminal.
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 (1)
1. The building construction remote monitoring system based on the Internet of things comprises a signal sampling module and a comparison detection module, and is characterized in that the signal sampling module samples an output signal of signal acquisition equipment in the building construction remote monitoring system by using a signal sampler J1 with the model of DAM-3056AH, the comparison detection module receives the output signal of the signal sampling module, and the output signal of the comparison detection module is sent to a building construction remote monitoring system terminal through a signal transmitter E1;
the comparison detection module comprises a variable resistor RW1, a sliding end of the variable resistor RW1 is connected with a diode D4, an anode of the diode D5 and one end of a capacitor C5, an anode of the variable resistor RW 5 is connected with a cathode of the diode D5, one end of the capacitor C5, the other end of the variable resistor RW 5 is connected with an anode of the diode D5 and one end of the capacitor C5, an anode of the diode D5 is connected with one end of the capacitor C5, the other end of the capacitor C5, a cathode of the diode D5 and an output port of the signal sampling module, a control electrode of the diode D5 is connected with the resistor R5, one end of the resistor R5 and one end of the capacitor C5, the other end of the resistor R5 is connected with an in-phase input end of the AR5 and one end of the capacitor C5, the other end of the capacitor C5 is connected with the ground, and the other end of the anti-phase resistor AR5 of the amplifier AR5 is connected with an input end of the resistor R5, the output end of the operational amplifier AR4 is connected with the other end of the resistor R3, one end of the resistor R4 and the cathode of the diode D4, the control electrode of the diode D5 is connected with the resistor R5, one end of the capacitor C6 and the anode of the voltage regulator tube D6, the other ends of the resistor R5 and the capacitor C6 are grounded, the cathode of the voltage regulator tube D6 is connected with a reference rated signal, namely the rated signal of the signal output by the signal acquisition device, the cathode of the diode D5 is connected with one end of the resistor R6, the other end of the resistor R6 is connected with the anode of the diode D6 and the non-inverting input end of the operational amplifier AR 6, the inverting input end of the operational amplifier AR 6 is connected with one end of the resistor R6, the other end of the resistor R6 is grounded, the output end of the operational amplifier AR 6 is connected with the cathode of the diode D6, the anode of the diode D6, the cathode of the diode D6 is connected with the inverting input end of the resistor R6, the non-inverting input end of the operational amplifier, the output end of the operational amplifier AR5 is connected with the other end of the resistor R8 and the signal transmitter E1;
the signal sampling module comprises a DAM-3056AH signal sampler J1, a power supply end of the signal sampler J1 is connected with +5V of a power supply, a grounding end of the signal sampler J1 is grounded, an output end of the signal sampler J1 is connected with a negative electrode of a voltage stabilizing tube D1 and an input port of the comparison detection module, and a positive electrode of a voltage stabilizing tube D1 is grounded.
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| CN112383315B (en) * | 2020-12-01 | 2021-06-25 | 石家庄铁道大学 | Water inrush safety defense system for high-stress tunnel construction |
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