CN109194349B - Building construction real-time monitoring system based on thing networking - Google Patents
Building construction real-time monitoring system based on thing networking Download PDFInfo
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- CN109194349B CN109194349B CN201811162249.7A CN201811162249A CN109194349B CN 109194349 B CN109194349 B CN 109194349B CN 201811162249 A CN201811162249 A CN 201811162249A CN 109194349 B CN109194349 B CN 109194349B
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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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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Abstract
The invention discloses a building construction real-time monitoring system based on the Internet of things, which comprises a signal receiving circuit, a signal calibration circuit and a frequency-selecting output circuit, wherein the signal receiving circuit receives signals at the input end of a signal transmission channel for a control terminal in the building construction real-time monitoring system based on the Internet of things, the signal calibration circuit receives the signals output by the signal receiving circuit in two paths, one path of the signals is filtered by a disturbing signal filtering circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C4 and a capacitor C5, the other path of the signals is subjected to frequency division by a synchronous separation circuit consisting of a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW1, a voltage stabilizing circuit consisting of a triode Q2, a triode Q3 and a voltage stabilizing tube D3 is designed, and finally the frequency-selecting output circuit screens out single high-frequency signals by using a frequency-selecting circuit consisting of a resistor R16-resistor R19 and a capacitor C8-capacitor C10, the signal can be automatically calibrated, and the signal error is reduced.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a building construction real-time monitoring system based on the Internet of things.
Technical Field
For improving the management level of highway construction, improve the efficiency of highway construction, the construction real-time monitoring system based on the thing networking has been researched and developed, process when can real-time remote monitoring highway construction, be convenient for deal with various proruption situation, in time deal with effectively, the monitoring level and the efficiency of construction of having improved greatly, however, the environmental factor of highway construction changes greatly, many high frequency high-voltage equipment work on the spot or around simultaneously again, can lead to in the construction real-time monitoring system based on the thing networking signal transmission channel for the control terminal often can be unusual in transmission process, lead to signal error great.
The present invention provides a new solution to this problem.
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 real-time building construction monitoring system based on the internet of things, which has the characteristics of ingenious design and humanized design, detects signals in a signal transmission channel for a control terminal in the real-time building construction monitoring system based on the internet of things in real time, and can automatically calibrate the signals and reduce signal errors.
The technical scheme for solving the problem is that the building construction real-time monitoring system based on the Internet of things comprises a signal receiving circuit, a signal calibration circuit and a frequency-selecting output circuit, wherein the signal receiving circuit receives signals at the input end of a signal transmission channel for a control terminal in the building construction real-time monitoring system based on the Internet of things, high-frequency interference and low-frequency interference are filtered by a duplex filter circuit consisting of an inductor L1, a capacitor C1, a capacitor C2, a resistor R2, an inductor L2 and a capacitor C3, the signal calibration circuit receives signals from the signal receiving circuit in two paths, one path of the signals is filtered by a disturbing signal filter circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C4 and a capacitor C5, the other path of the signals is subjected to frequency division by a synchronous separation circuit consisting of a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW1, and a voltage stabilizing circuit consisting of a triode Q2, a triode Q3 and a voltage stabilizing tube, after the operational amplifier AR3 amplifies two paths of signals in phase, the signals and one path of signals are input into the in-phase input end of the operational amplifier AR4, the triode Q4 plays a role in feedback adjustment of the output signal potential of the operational amplifier AR4, and finally the frequency-selecting output circuit selects a single high-frequency signal by using a frequency-selecting circuit consisting of a resistor R16-a resistor R19 and a capacitor C8-a capacitor C10 and outputs the signal, namely the signal is input into a signal transmission channel for a control terminal in the real-time building construction monitoring system based on the Internet of things;
the signal calibration circuit comprises an operational amplifier AR1, wherein a non-inverting input terminal of the operational amplifier AR1 is connected with one end of a capacitor C4, an inverting input terminal of the operational amplifier AR1 is connected with one end of a resistor R1 and one end of the capacitor C1, the other end of the capacitor C1 is connected with one end of the resistor R1, an output terminal of the operational amplifier AR1 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with one end of the non-inverting input terminal of the operational amplifier AR1, the non-inverting input terminal of the operational amplifier AR1 is connected with one end of the resistor R1, the other end of the resistor R1 and the other end of the capacitor C1 are grounded, the other end of the resistor R1 is connected with a cathode of a diode D1, an output terminal of the operational amplifier AR1 is connected with a base of a transistor Q1 and the non-inverting input terminal of the operational amplifier AR1, one end of the resistor R1 and the output terminal of the operational amplifier AR1, an anode of the diode D1 is connected with one end of the capacitor C1 and the, the other end of the resistor R5 is connected to the power supply +5V and one end of the resistor R8, and the emitter of the transistor Q1, the base of the transistor Q1 is connected to one end of the resistor R6 and one end of the variable resistor RW1, the other end of the resistor R6 is connected to the other end of the capacitor C7, the collector of the transistor Q1 is connected to one end of the resistor R9 and the base of the transistor Q9, the other end of the resistor R9 and the other end of the variable resistor RW 9 are grounded, the collector of the transistor Q9 is connected to the non-inverting input terminal of the amplifier AR 9, the collector of the transistor Q9 and the cathode of the regulator D9, and the other end of the resistor R9, the anode of the regulator D9 is grounded, the emitter of the transistor Q9 is connected to the base of the transistor Q9, the emitter of the transistor Q9 is grounded, the inverting input terminal of the amplifier AR 9 is connected to one end of the resistor R9 and the emitter of the resistor R9 and the collector of the amplifier AR 9 are connected to one end, the inverting input terminal of the operational amplifier AR4 is connected to one end of the resistor R14 and the other end of the resistor R15, and the other end of the resistor R14 is grounded.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. the operational amplifier AR1, the operational amplifier AR2, the capacitor C4 and the capacitor C5 form a disturbance signal filter circuit for filtering disturbance interference signals in the signals and improving the stability of the signals, the two paths of signals are subjected to frequency division processing through a synchronous separation circuit formed by a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW1 and can be detected after frequency division, the accuracy of the calibration signals is improved, meanwhile, a voltage stabilizing circuit formed by a triode Q2, a triode Q3 and a voltage stabilizing tube D3 is designed to stabilize the voltage, namely, the signals are detected, when the wavelength of the signals is abnormal, the triode Q2 and the triode Q3 are conducted to discharge the abnormal signals to the ground completely, when the signals are normal, the triode Q2 and the triode Q3 are not conducted, the voltage stabilizing tube D3 has the effect of stabilizing the collector potential of the triode Q1 and the triode Q2, namely, and is the potential of two paths of signal output signals is stabilized, at this moment, the operational amplifier AR4 has the effect of an adder without influencing the amplitude and frequency of the original signal, and the triode Q4 has the function of feeding back and adjusting the output signal potential of the operational amplifier AR4, so that the signal potential is further stabilized, the automatic calibration of the signal is realized, and the signal error is reduced.
Drawings
Fig. 1 is a block diagram of a real-time building construction monitoring system based on the internet of things.
Fig. 2 is a schematic diagram of the building construction real-time monitoring system based on the internet of things.
Detailed Description
The foregoing and other technical matters, features and effects 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 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
In the first embodiment, a building construction real-time monitoring system based on the internet of things comprises a signal receiving circuit, a signal calibration circuit and a frequency-selecting output circuit, wherein the signal receiving circuit receives signals at the input end of a signal transmission channel for a control terminal in the building construction real-time monitoring system based on the internet of things, high-frequency interference and low-frequency interference are filtered by a duplex filter circuit consisting of an inductor L1, a capacitor C1, a capacitor C2, a resistor R2, an inductor L2 and a capacitor C3, the signal calibration circuit receives the signals in two paths, one path is filtered by a disturbing signal filter circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C4 and a capacitor C5, the other path is subjected to frequency division processing by a synchronous separation circuit consisting of a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW1, and a voltage stabilizing circuit consisting of a triode Q2, a triode Q3 and a voltage stabilizing tube D3 is designed at the same time, after the operational amplifier AR3 amplifies two paths of signals in phase, the signals and one path of signals are input into the in-phase input end of the operational amplifier AR4, the triode Q4 plays a role in feedback adjustment of the output signal potential of the operational amplifier AR4, and finally the frequency-selecting output circuit selects a single high-frequency signal by using a frequency-selecting circuit consisting of a resistor R16-a resistor R19 and a capacitor C8-a capacitor C10 and outputs the signal, namely the signal is input into a signal transmission channel for a control terminal in the real-time building construction monitoring system based on the Internet of things;
the signal calibration circuit receives signals output by the signal receiving circuit in two paths, one path of the signals is filtered by a disturbing signal filter circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C4 and a capacitor C5, disturbing interference signals in the signals are filtered, the stability of the signals is improved, the other path of the signals is subjected to frequency division processing by a synchronous separation circuit consisting of a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW1, the signals can be detected after frequency division, the accuracy of the calibration signals is improved, meanwhile, a voltage stabilizing circuit consisting of a triode Q2, a triode Q3 and a voltage stabilizing tube D3 is designed, namely the signal detection is realized, when the wavelength of the signals is abnormal, the triodes Q2 and Q3 are conducted, the abnormal signals are completely discharged to the ground, when the signals are normal, the triodes Q2 and Q3 are not conducted, and the voltage stabilizing tube D3 has the effect of stabilizing the electrode potential of the triode Q1 and the triode Q2, namely, the two-way signal output signal potential is stabilized, wherein the operational amplifier AR3 amplifies two-way signals in phase and then inputs the two-way signals into the non-inverting input terminal of the operational amplifier AR4 together with one-way signals, at this time, the operational amplifier AR4 plays the role of an adder without affecting the amplitude and frequency of the original signals, the triode Q4 plays the role of feedback adjustment of the signal potential output by the operational amplifier AR4, the signal potential is further stabilized, the non-inverting input terminal of the operational amplifier AR1 is connected to one end of the capacitor C4, the inverting input terminal of the operational amplifier AR1 is connected to one end of the resistor R4 and one end of the capacitor C5, the other end of the capacitor C4 is connected to one end of the resistor R3, the output terminal of the operational amplifier AR1 is connected to one end of the resistor R10, the other end of the resistor R10 is connected to the non-inverting input terminal of the operational amplifier AR2, the inverting input terminal of the operational amplifier AR2 is connected to one end of the resistor R11, the resistor R63, the output end of the operational amplifier AR2 is connected to the base of the transistor Q4, the non-inverting input end of the operational amplifier AR4, one end of the resistor R13, the output end of the operational amplifier AR3, the positive electrode of the diode D1 is connected to one end of the capacitor C6, one end of the capacitor C7 and one end of the resistor R7, the other end of the resistor R7 is connected to ground, the other end of the capacitor C7 is connected to one end of the resistor R7, the other end of the resistor R7 is connected to one end of the power supply +5V and one end of the resistor R7 and the emitter of the transistor Q7, the base of the transistor Q7 is connected to one end of the resistor R7 and one end of the variable resistor RW 7, the other end of the resistor R7 is connected to ground, the collector of the transistor Q7 is connected to the non-inverting input end of the capacitor C7, the collector of the transistor Q7 and the collector of the regulator R7 and the negative electrode of the variable resistor R7, and the collector of the transistor Q7 are, the positive electrode of the voltage regulator tube D3 is grounded, the emitter of the triode Q2 is connected with the base electrode of the triode Q3, the emitter of the triode Q3 is grounded, the inverting input end of the operational amplifier AR3 is connected with one end of the resistor R12, the other end of the resistor R13 and the emitter of the triode Q4, the other end of the resistor R12 is grounded, the collector of the triode Q4 is connected with the output end of the operational amplifier AR4 and one end of the resistor R15, the inverting input end of the operational amplifier AR4 is connected with one end of the resistor R14 and the other end of the resistor R15, and the other end of the resistor R14.
In the second embodiment, on the basis of the first embodiment, the signal receiving circuit receives a signal at an input end of a signal transmission channel for a control terminal in a building construction real-time monitoring system based on the internet of things, and the signal passes through a duplex filter circuit composed of an inductor L1, a capacitor C1, a capacitor C2, a resistor R2, an inductor L2 and a capacitor C3 to filter out high-frequency interference and low-frequency interference, so that the signal calibration circuit can calibrate the signal conveniently.
In a third embodiment, on the basis of the first embodiment, the frequency-selective output circuit filters out a single high-frequency signal by using a frequency-selective circuit composed of a resistor R16-a resistor R19 and a capacitor C8-a capacitor C10, and then outputs the single high-frequency signal, where the single high-frequency signal has high stability, that is, the single high-frequency signal is input into a signal transmission channel for a control terminal in a real-time monitoring system for building construction based on the internet of things, one end of the resistor R16 is connected to one end of a capacitor C8 and an output end of an operational amplifier AR4, the other end of the resistor R16 is connected to one end of a resistor R17 and one end of a capacitor C10, the other end of the capacitor C8 is connected to one end of a resistor R18 and one end of a capacitor C9, the other end of the resistor R18 and the other end of the.
The invention relates to a building construction real-time monitoring system based on the Internet of things, which comprises a signal receiving circuit, a signal calibration circuit and a frequency-selecting output circuit, wherein the signal receiving circuit receives signals at the input end of a signal transmission channel for a control terminal in the building construction real-time monitoring system based on the Internet of things, high-frequency interference and low-frequency interference are filtered by a duplex filter circuit consisting of an inductor L1, a capacitor C1, a capacitor C2, a resistor R2, an inductor L2 and a capacitor C3, the signal calibration circuit receives signals from the signal receiving circuit in two paths, one path of the signals is filtered by a disturbance signal filter circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C4 and a capacitor C5, disturbance interference signals in the signals are filtered, the stability of the signals is improved, the other path of the signals is subjected to frequency division by a synchronous separation circuit consisting of a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW 685, the signal can be detected after frequency division, the accuracy of the calibration signal is improved, a voltage stabilizing circuit consisting of a triode Q2, a triode Q3 and a voltage stabilizing tube D3 is designed for stabilizing the voltage, namely, the signal detection is carried out, when the wavelength of the signal is abnormal, the triode Q2 and the triode Q3 are conducted, the abnormal signal is completely discharged to the ground, when the signal is normal, the triode Q2 and the triode Q3 are not conducted, the voltage stabilizing tube D3 has the effect of stabilizing the collector potential of the triode Q1 and the triode Q2, namely, the two-path signal output signal potential is stabilized, wherein after the two-path signals are amplified in the same phase by the operational amplifier AR3, the two-path signals and the one-path signal are input into the non-phase input end of the operational amplifier AR4, at the moment, the operational amplifier AR4 has the effect of an adder, the amplitude and the frequency of the original signal are not influenced, the triode Q4 has the function, and finally, the frequency selection output circuit selects a single high-frequency signal by using a frequency selection circuit consisting of a resistor R16-a resistor R19 and a capacitor C8-a capacitor C10 and outputs the signal, so that the signal can be automatically calibrated, and the signal error is reduced.
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. A building construction real-time monitoring system based on the Internet of things comprises a signal receiving circuit, a signal calibration circuit and a frequency selection output circuit, and is characterized in that the signal receiving circuit receives signals at the input end of a signal transmission channel, the signal transmission channel is used for a control terminal in the building construction real-time monitoring system based on the Internet of things, high-frequency interference and low-frequency interference are filtered by a duplex filter circuit consisting of an inductor L1, a capacitor C1, a capacitor C2, a resistor R2, an inductor L2 and a capacitor C3, the signal calibration circuit receives signals output by the signal receiving circuit in two paths, the first path is subjected to filtering processing by a disturbance signal filter circuit consisting of an operational amplifier AR1, an operational amplifier AR2, a capacitor C4 and a capacitor C5, the second path is subjected to frequency division processing by a synchronous separation circuit consisting of a triode Q1, a capacitor C6, a capacitor C7 and a variable resistor RW1, and a voltage stabilizing circuit consisting of a triode Q2, a triode Q3 and a voltage stabilizing tube D3 is designed, after the second path of signals are amplified in phase by the operational amplifier AR3, the second path of signals and the first path of signals are input into the in-phase input end of the operational amplifier AR4, the triode Q4 plays a role in feedback adjustment of the output signal potential of the operational amplifier AR4, and finally the frequency selection output circuit selects a single high-frequency signal by using a frequency selection circuit consisting of a resistor R16-a resistor R18 and a capacitor C8-a capacitor C10 and outputs the single high-frequency signal, namely the single high-frequency signal is input into a signal transmission channel for a control terminal in the real-time building construction monitoring system based on the Internet of;
the signal calibration circuit comprises an operational amplifier AR1, wherein a non-inverting input terminal of the operational amplifier AR1 is connected with one end of a capacitor C4, an inverting input terminal of the operational amplifier AR1 is connected with one end of a resistor R1 and one end of the capacitor C1, the other end of the capacitor C1 is connected with one end of the resistor R1, an output terminal of the operational amplifier AR1 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with one end of the non-inverting input terminal of the operational amplifier AR1, the non-inverting input terminal of the operational amplifier AR1 is connected with one end of the resistor R1, the other end of the resistor R1 and the other end of the capacitor C1 are grounded, the other end of the resistor R1 is connected with a cathode of a diode D1, an output terminal of the operational amplifier AR1 is connected with a base of a transistor Q1 and the non-inverting input terminal of the operational amplifier AR1, one end of the resistor R1 and the output terminal of the operational amplifier AR1, an anode of the diode D1 is connected with one end of the capacitor C1 and the, the other end of the resistor R5 is connected to the power supply +5V and one end of the resistor R8, and the emitter of the transistor Q1, the base of the transistor Q1 is connected to one end of the resistor R6 and one end of the variable resistor RW1, the other end of the resistor R6 is connected to the other end of the capacitor C7, the collector of the transistor Q1 is connected to one end of the resistor R9 and the base of the transistor Q9, the other end of the resistor R9 and the other end of the variable resistor RW 9 are grounded, the collector of the transistor Q9 is connected to the non-inverting input terminal of the amplifier AR 9, the collector of the transistor Q9 and the cathode of the regulator D9, and the other end of the resistor R9, the anode of the regulator D9 is grounded, the emitter of the transistor Q9 is connected to the base of the transistor Q9, the emitter of the transistor Q9 is grounded, the inverting input terminal of the amplifier AR 9 is connected to one end of the resistor R9 and the emitter of the resistor R9 and the collector of the amplifier AR 9 are connected to one end, the inverting input end of the operational amplifier AR4 is connected with one end of a resistor R14 and the other end of a resistor R15, and the other end of the resistor R14 is grounded;
the signal receiving circuit comprises a capacitor C1, wherein the anode of the capacitor C1 is connected with one end of an inductor L2 and one end of a resistor R1, the other end of the resistor R1 is connected with a signal receiving port, the cathode of the capacitor C1 is connected with the anode of a capacitor C2 and one end of an inductor L1, the cathode of the capacitor C2 is connected with one end of a resistor R2, the other end of the resistor R2 and the other end of the inductor L1 are grounded, the other end of the inductor L2 is connected with one end of a capacitor C3 and the anode of a diode D1, and the other end of the capacitor C3 is grounded;
the frequency-selecting output circuit comprises a resistor R16, one end of the resistor R16 is connected with one end of a capacitor C8 and the output end of an operational amplifier AR4, the other end of the resistor R16 is connected with one end of a resistor R17 and one end of a capacitor C10, the other end of the capacitor C8 is connected with one end of the resistor R18 and one end of a capacitor C9, the other end of the resistor R18 and the other end of the capacitor C10 are grounded, and the other end of the resistor R17 and the other end of the capacitor C9 are connected with a signal output port.
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| CN109905088B (en) * | 2019-01-26 | 2022-11-22 | 内蒙古皖能建筑安装工程有限公司 | Power transmission real-time monitoring system |
| CN109814465B (en) * | 2019-02-26 | 2021-04-09 | 安徽皖水水务发展有限公司 | Water supply remote monitoring system based on Internet of things |
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| CN109932973B (en) * | 2019-04-03 | 2020-12-08 | 王琪 | Exhibition article microenvironment monitoring system |
| CN109917216B (en) * | 2019-04-17 | 2021-07-09 | 广东非凡实业投资有限公司 | Household appliance fault monitoring equipment |
| CN110138410B (en) * | 2019-06-03 | 2020-09-29 | 郑州旅游职业学院 | Tourism safety intelligent management system |
| CN110057986B (en) * | 2019-06-12 | 2020-01-21 | 郑州工程技术学院 | Atmospheric environment monitoring system based on big data |
| CN110244678B (en) * | 2019-06-27 | 2020-05-05 | 河南鑫安利消防安全评价有限公司 | Industrial building fire safety assessment system |
| CN110333753B (en) * | 2019-07-31 | 2020-06-12 | 江苏省苏中建设集团股份有限公司 | Building site information transmission system |
| CN110380744B (en) * | 2019-07-31 | 2020-07-14 | 广东新视野信息科技股份有限公司 | Building site fire safety management system based on thing networking |
| CN110418063B (en) * | 2019-08-30 | 2020-04-17 | 深圳市众安威视技术有限公司 | Camera signal calibration system |
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