CN111740759B - Building construction information transmission system based on Internet of things - Google Patents
Building construction information transmission system based on Internet of things Download PDFInfo
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- CN111740759B CN111740759B CN202010527059.1A CN202010527059A CN111740759B CN 111740759 B CN111740759 B CN 111740759B CN 202010527059 A CN202010527059 A CN 202010527059A CN 111740759 B CN111740759 B CN 111740759B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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Abstract
The invention discloses a building construction information transmission system based on the Internet of things, which comprises a signal sampling module and a feedback phase-shifting module, the signal sampling module samples the output signal of the signal acquisition equipment in the building construction information transmission system by using a signal sampler J1 with the model number of DAM-3056AH, the feedback phase-shifting module receives the output signal of the signal sampling module, the output signal of the feedback phase-shifting module is sent to a building construction information transmission system terminal through a signal transmitter E1, in order to ensure that the anti-interference performance of signal transmission is enhanced, a noise reduction circuit consisting of an operational amplifier AR1, a capacitor C4 and a capacitor C5 is required to reduce the signal-to-noise ratio, and finally, the operational amplifier AR4 amplifies signals in phase and sends the amplified signals to a building construction information transmission system terminal through a signal emitter E1, and the building construction information transmission system terminal receives the signals and adjusts the signal transmission frequency in time, so that the signal transmission efficiency is improved.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a building construction information transmission 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, the efficiency of managing data in a building construction state is improved, meanwhile, building construction data need to be monitored in real time according to the construction state, data deviation in the building construction is avoided, but the building construction monitoring needs to transmit a large amount of data information in real time, the accuracy of the data must be ensured, effectiveness and reliability are two characteristics of information transmission, the accumulation of noise transmitted in practice is an important factor influencing the transmission reliability, and the loss of signals received by a building construction information transmission 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 present invention aims to provide a building construction information transmission system based on the internet of things, which can sample and adjust the output signal of the signal acquisition device in the building construction information transmission system and convert the sampled and adjusted output signal into a correction trigger signal of a building construction information transmission system terminal.
The technical scheme includes that the building construction information transmission system based on the Internet of things comprises a signal sampling module and a feedback phase-shifting module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction information transmission system by using a signal sampler J1 with the model of DAM-3056AH, the feedback phase-shifting module receives the output signal of the signal sampling module, and the output signal of the feedback phase-shifting module is sent to a terminal of the building construction information transmission system through a signal transmitter E1;
the feedback phase-shifting module comprises a variable resistor RW1, one end of the variable resistor RW1 is connected with the anode of the diode D1 and one end of the capacitor C1, one end of a resistor R1, the other end of the variable resistor RW1 is connected with the cathode of the diode D1 and one end of the capacitor C1, the anode of the diode D1 is connected with the capacitor C1, the other end of the capacitor C1, the cathode of the diode D1 and the output port of the signal sampling module, the sliding end of the variable resistor RW1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is connected with the resistor R1 and one end of the inductor L1, the other end of the inductor L1 is connected with one end of the resistor R1, one end of the capacitor C1 and the other end of the resistor R1, the other end of the resistor R1 is connected with the non-phase input end of the operational amplifier AR1, the other end of the operational amplifier AR1 is connected with the non-phase input end of the non-phase resistor R1, the non-phase input end of the operational amplifier AR1 and the non-phase input end of the operational amplifier AR1, the non-phase amplifier AR1 are connected with the non-phase input end of the non-phase resistor R1, the non-phase resistor R1 and the non-phase input end of the operational amplifier AR1, The grid of MOS tube Q1, the inverting input terminal of operational amplifier AR2 is connected to one end of resistor R5, the output terminal of operational amplifier AR2 is connected to the other end of resistor R2 and one end of resistor R2, the other end of resistor R2 is connected to the non-inverting input terminal of operational amplifier AR2, the anode of diode D2 and the cathode of diode D2, the anode of diode D2 is connected to the source of MOS tube Q2, the drain of MOS tube Q2 is connected to one end of resistor R2 and resistor R2, the other end of resistor R2 is connected to the inverting input terminal of operational amplifier AR2 and one end of resistor R2, the non-inverting input terminal of operational amplifier AR2 is connected to the other end of resistor R2 and one end of capacitor C2, the other end of capacitor C2 is connected to ground, the other end of output terminal of operational amplifier AR2 and the anode of diode D2 and the cathode of diode D2 are connected to the other end of resistor R2 and the inverting input terminal of diode R2, the cathode of diode D2 and the amplifier AR2, the cathode of diode D2 is connected to the inverting input terminal of the amplifier, One end of the resistor R12 and the other end of the resistor R12 are grounded, and the output end of the operational amplifier AR4 is connected with the other end of the resistor R11 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. in order to prevent distortion in the signal adjustment process, the feedback phase shift module uses a variable resistor RW1, a diode D3 and a diode D2 to form a rectifying circuit to rectify a signal, when the signal is positive, the diode D3 is conducted, otherwise, the diode D2 is conducted to realize the rectifying effect, then on the basis of ensuring the stability of the signal waveform through rectification, an inductor L3 and a capacitor C3 are used for widening the signal pulse width, a capacitor C3 is used as a decoupling capacitor to reduce the signal noise, then the inductor L3 is used for enabling the signal to resonate, and the voltage at two ends of a resistor R11 is increased at the moment, so that the effect of widening the signal pulse width is realized, the signal transmission efficiency is improved, and the signal transmission is more stable;
2. in order to ensure that the anti-interference performance of signal transmission is enhanced, a noise reduction circuit consisting of an operational amplifier AR1, a capacitor C4 and a capacitor C5 is required to reduce the signal-to-noise ratio, the capacitor C4 is used as a decoupling capacitor, the capacitor C5 is used as a bypass capacitor, then the operational amplifier AR3 is used for amplifying signals and enhancing the intensity of feedback signals, in order to adjust the peak value of the signals, one path of signals are fed back to a variable resistor RW1, the amplitude value of the signals output by a rectifying circuit is directly adjusted, the other path of signals are fed back to the in-phase input end of the operational amplifier 4, the amplitude value of the output signals is directly adjusted, finally the in-phase amplified signals of the operational amplifier AR4 are sent to a building construction information transmission system terminal through a signal transmitter E1, the building construction information transmission system terminal receives the signals and adjusts the signal transmission frequency in time, and the signal transmission efficiency is improved.
Drawings
Fig. 1 is a block schematic diagram of a building construction information transmission system based on the internet of things according to the present invention.
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 building construction information transmission system based on the Internet of things comprises a signal sampling module and a feedback phase-shifting module, wherein the signal sampling module samples an output signal of signal acquisition equipment in the building construction information transmission system by using a signal sampler J1 with the model of DAM-3056AH, the feedback phase-shifting module receives the output signal of the signal sampling module, and the output signal of the feedback phase-shifting module is sent to a terminal of the building construction information transmission system through a signal transmitter E1;
in order to prevent distortion from being generated in the signal adjusting process, the feedback phase shift module uses a rectifying circuit formed by a variable resistor RW1, a diode D3 and a diode D2 to rectify a signal, when the signal is positive, the diode D3 is conducted, otherwise, the diode D2 is conducted to realize the rectifying effect, a capacitor C1 and a capacitor C2 play a filtering effect, then on the basis that the rectification ensures that the signal waveform is stable, an inductor L3 and a capacitor C3 are used to widen the signal pulse width, a capacitor C3 is used as a decoupling capacitor to reduce the signal noise, then the inductor L3 is used to enable the signal to resonate, the voltage at two ends of a resistor R11 is increased to realize the effect of widening the signal pulse width, the signal transmission efficiency is improved, the signal transmission is more stable, and then in order to ensure that the anti-interference performance of the signal transmission is enhanced, an operational amplifier AR1, a capacitor C4 and a capacitor C5 are used to form a noise reduction circuit to reduce the signal noise ratio, using the capacitor C4 as a decoupling capacitor and the capacitor C5 as a bypass capacitor, the final operational amplifier AR1 amplifies the signal, to compensate for the conduction loss of the signal, finally the op-amp AR2 buffers the signal, to stabilize the signal, in order to adjust the signal peak value and ensure the accuracy of the signal received by the building construction information transmission system terminal, the MOS tube Q1 is used for detecting the output signal potential difference of the operational amplifier AR1 and the operational amplifier AR2, then, the operational amplifier AR3 is used to amplify the signal to enhance the intensity of the feedback signal, one path of the signal is fed back to the variable resistor RW1 to adjust the amplitude value of the output signal of the rectifying circuit directly, the other path of the signal is fed back to the non-inverting input terminal of the operational amplifier 4 to adjust the amplitude value of the output signal directly, in order to further protect the circuit, a diode D5 and a diode D6 are used for limiting the amplitude of the signal, and finally an operational amplifier AR4 amplifies the signal in phase and sends the amplified signal to a terminal of the building construction information transmission system through a signal emitter E1;
in the specific structure of the feedback phase-shifting module, one end of a variable resistor RW1 is connected to the anode of a diode D2 and one end of a capacitor C2 and one end of a resistor R6, the other end of the variable resistor RW 6 is connected to the cathode of the diode D6 and one end of a capacitor C6, the anode of the diode D6 is connected to the capacitor C6, the other end of the capacitor C6, the cathode of the diode D6 and the output port of the signal sampling module, the sliding end of the variable resistor RW 6 is connected to one end of the capacitor C6, the other end of the capacitor C6 is connected to one end of the resistor R6 and one end of the resistor R6, the other end of the resistor R6 is connected to one end of the capacitor C6 and the other end of the resistor R6, the non-inverting input end of the capacitor C6 and the non-inverting input end of the operational amplifier AR 6, the inverting input end of the capacitor R6 is connected to one end of the resistor R6 and the non-inverting input end of the capacitor R6, the non-inverting input end of the operational amplifier R6 and the non-inverting input end of the capacitor R6 are connected to the non-inverting input end of the non-inverting amplifier R6, the non-inverting input end of the capacitor R6, the non-inverting amplifier R6, the non-inverting input end of the capacitor R6, the non-inverting input end of the amplifier R6, the non-inverting input end of the amplifier R6 is connected to one of the amplifier R6, and the non-inverting input end of the non-inverting amplifier R6, and the non-inverting input end of the non-inverting amplifier R6, and the amplifier C6, and the non-inverting input end of the amplifier R6 are connected to one end of the amplifier C6, and the amplifier, The grid of MOS tube Q1, the inverting input terminal of operational amplifier AR2 is connected to one end of resistor R5, the output terminal of operational amplifier AR2 is connected to the other end of resistor R2 and one end of resistor R2, the other end of resistor R2 is connected to the non-inverting input terminal of operational amplifier AR2, the anode of diode D2 and the cathode of diode D2, the anode of diode D2 is connected to the source of MOS tube Q2, the drain of MOS tube Q2 is connected to one end of resistor R2 and resistor R2, the other end of resistor R2 is connected to the inverting input terminal of operational amplifier AR2 and one end of resistor R2, the non-inverting input terminal of operational amplifier AR2 is connected to the other end of resistor R2 and one end of capacitor C2, the other end of capacitor C2 is connected to ground, the other end of output terminal of operational amplifier AR2 and the anode of diode D2 and the cathode of diode D2 are connected to the other end of resistor R2 and the inverting input terminal of diode R2, the cathode of diode D2 and the amplifier AR2, the cathode of diode D2 is connected to the inverting input terminal of the amplifier, One end of the resistor R12 and the other end of the resistor R12 are grounded, and the output end of the operational amplifier AR4 is connected with the other end of the resistor R11 and the signal transmitter E1.
In the second embodiment, on the basis of the first embodiment, the signal sampling module selects a signal sampler J1 with a model of DAM-3056AH to sample the output signal of the signal acquisition device in the building construction information transmission system, a power supply end of the signal sampler J1 is connected with +5V, 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 regulator tube D1 and an input port of the feedback phase-shifting module, and a positive electrode of the voltage regulator tube D1 is grounded.
When the invention is used specifically, the building construction information transmission system based on the Internet of things comprises a signal sampling module and a feedback phase-shifting 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 transmission system, in order to prevent distortion in the signal adjustment process, the feedback phase-shifting module uses a rectifying circuit consisting of a variable resistor RW1, a diode D3 and a diode D2 to rectify the signals, when the signals are positive, the diode D3 is conducted, otherwise, the diode D2 is conducted to realize the rectifying effect, the capacitor C1 and the capacitor C2 play a role in filtering, then on the basis of ensuring the stable signal waveform through rectification, the inductor L3 and the capacitor C3 are used for widening the pulse width of the signals, the capacitor C3 is used as a decoupling capacitor to reduce the noise of the signals, and then the inductor L3 is used for enabling the signals to resonate, at the moment, the voltage at two ends of the resistor R11 is increased, the function of widening the pulse width of a signal is realized, the signal transmission efficiency is improved, the signal transmission is more stable, then in order to ensure that the anti-interference performance of the signal transmission is enhanced, a noise reduction circuit consisting of an operational amplifier AR1, a capacitor C4 and a capacitor C5 is required to be used for reducing the signal-to-noise ratio, the capacitor C4 is used as a decoupling capacitor, the capacitor C5 is used as a bypass capacitor, a final operational amplifier AR1 amplifies the signal to compensate the conduction loss of the signal, the final operational amplifier AR2 buffers the signal to stabilize the signal, in order to adjust the peak value of the signal, the accuracy of the signal received by a terminal of the building construction information transmission system is ensured, a MOS tube Q1 is used for detecting the potential difference of the signals output by the operational amplifier AR1 and the operational amplifier AR2, then the signal is amplified by the operational amplifier AR3 to enhance the intensity of the feedback signal, in order to adjust the peak value of the signal, one path is fed back to the variable resistor RW1, the amplitude value of the output signal of the rectifier circuit is directly adjusted, and the two paths of signals are fed back to the non-inverting input end of the operational amplifier 4, the amplitude value of the output signal is directly adjusted, in order to further protect the circuit, the diode D5 and the diode D6 are used for limiting the amplitude of the signal, and finally the operational amplifier AR4 amplifies the signal in phase and sends the amplified signal to the building construction information transmission system terminal through the signal transmitter 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. The building construction information transmission system based on the Internet of things comprises a signal sampling module and a feedback phase-shifting module, and is characterized in that the signal sampling module samples an output signal of signal acquisition equipment in the building construction information transmission system by using a signal sampler J1 with the model of DAM-3056AH, the feedback phase-shifting module receives the output signal of the signal sampling module, and the output signal of the feedback phase-shifting module is sent to a terminal of the building construction information transmission system through a signal transmitter E1;
the feedback phase-shifting module comprises a variable resistor RW1, one end of the variable resistor RW1 is connected with the anode of the diode D1 and one end of the capacitor C1, one end of a resistor R1, the other end of the variable resistor RW1 is connected with the cathode of the diode D1 and one end of the capacitor C1, the anode of the diode D1 is connected with the capacitor C1, the other end of the capacitor C1, the cathode of the diode D1 and the output port of the signal sampling module, the sliding end of the variable resistor RW1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is connected with the resistor R1 and one end of the inductor L1, the other end of the inductor L1 is connected with one end of the resistor R1, one end of the capacitor C1 and the other end of the resistor R1, the other end of the resistor R1 is connected with the non-phase input end of the operational amplifier AR1, the other end of the operational amplifier AR1 is connected with the non-phase input end of the non-phase resistor R1, the non-phase input end of the operational amplifier AR1 and the non-phase input end of the operational amplifier AR1, the non-phase amplifier AR1 are connected with the non-phase input end of the non-phase resistor R1, the non-phase resistor R1 and the non-phase input end of the operational amplifier AR1, The grid of MOS tube Q1, the inverting input terminal of operational amplifier AR2 is connected to one end of resistor R5, the output terminal of operational amplifier AR2 is connected to the other end of resistor R2 and one end of resistor R2, the other end of resistor R2 is connected to the non-inverting input terminal of operational amplifier AR2, the anode of diode D2 and the cathode of diode D2, the anode of diode D2 is connected to the source of MOS tube Q2, the drain of MOS tube Q2 is connected to one end of resistor R2 and resistor R2, the other end of resistor R2 is connected to the inverting input terminal of operational amplifier AR2 and one end of resistor R2, the non-inverting input terminal of operational amplifier AR2 is connected to the other end of resistor R2 and one end of capacitor C2, the other end of capacitor C2 is connected to ground, the other end of output terminal of operational amplifier AR2 and the anode of diode D2 and the cathode of diode D2 are connected to the other end of resistor R2 and the inverting input terminal of diode R2, the cathode of diode D2 and the amplifier AR2, the cathode of diode D2 is connected to the inverting input terminal of the amplifier, One end of the resistor R12 and the other end of the resistor R12 are grounded, and the output end of the operational amplifier AR4 is connected with the other end of the resistor R11 and the signal transmitter E1.
2. The Internet of things-based building construction information transmission system 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 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 regulator tube D1 and an input port of the feedback phase-shifting module, and a positive electrode of the voltage regulator tube D1 is grounded.
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