CN111010205B - Power grid terminal information communication system - Google Patents
Power grid terminal information communication system Download PDFInfo
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- CN111010205B CN111010205B CN201911411750.7A CN201911411750A CN111010205B CN 111010205 B CN111010205 B CN 111010205B CN 201911411750 A CN201911411750 A CN 201911411750A CN 111010205 B CN111010205 B CN 111010205B
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- 238000004891 communication Methods 0.000 title claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims abstract description 66
- 230000008054 signal transmission Effects 0.000 claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims description 12
- 230000001960 triggered effect Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
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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
- H04B1/38—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
- H04B1/40—Circuits
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Abstract
The invention discloses a power grid terminal information communication system, which comprises a rectifying circuit, a synchronous check circuit and an operational amplifier transmitting circuit, wherein the rectifying circuit receives an output signal of a data signal transmission rate acquisition module, rectifies the signal by using a variable resistor RW1, a capacitor C1 and a capacitor C2, the synchronous check circuit uses an operational amplifier AR1, a triode Q2 and a capacitor C3 to form a noise reduction circuit to reduce signal noise, simultaneously uses an operational amplifier AR3, an operational amplifier AR5 and the capacitor C6 to form a signal check circuit to detect a signal peak value, uses an operational amplifier AR2 to synchronously reduce the output signal of the circuit, uses the operational amplifier AR6 to compare an output end signal of the operational amplifier AR2 with a signal at the same phase input end of the operational amplifier AR3, and finally uses the operational amplifier AR6 to output a signal triggering signal transmitter E1 to transmit the signal to a power grid terminal controller, so that the power grid data signal transmission rate can be checked and transmitted to the power, and analyzing the signal for the fault of the power grid terminal controller.
Description
Technical Field
The invention relates to the technical field of circuits, in particular to a power grid terminal information communication system.
Background
At present, a power grid terminal information communication system bears an important role in work, and mainly transmits power grid information to a power grid signal receiver through a wireless network by a power grid signal transmitter, in practice, when the signal transmission rate of the power grid signal transmitter is too high for a period of time, the signal transmission rate exceeds the window setting range of the power grid signal receiver, so that a power grid terminal controller cannot receive signals output by the power grid signal receiver, and at the moment, a worker can only determine fault reasons through a one-by-one checking mode, and the effect of the power grid terminal information communication system is seriously influenced.
Disclosure of Invention
In view of the above situation, and in order to overcome the defects in the prior art, an object of the present invention is to provide a power grid terminal information communication system, which can check the transmission rate of a power grid data signal, transmit the power grid data signal to a power grid terminal controller in real time, and analyze a signal for a fault of the power grid terminal controller.
The technical scheme includes that the power grid terminal information communication system comprises a power grid signal transmitter, a power grid signal receiver, a controller and a signal detection module, wherein the power grid signal transmitter transmits power grid information into the power grid signal receiver through a wireless network, the power grid signal receiver receives the signal and inputs the signal into a power grid terminal controller, a data signal transmission rate acquisition module is arranged in the power grid signal transmitter, the signal detection module receives the signal output by the data signal transmission rate acquisition module, the signal detection module comprises a rectification circuit, a synchronous check circuit and an operational amplifier transmitting circuit, the rectification circuit receives the signal output by the data signal transmission rate acquisition module, a variable resistor RW1, a capacitor C1 and a capacitor C2 are used for rectifying the signal, the synchronous check circuit uses an operational amplifier AR1, a triode Q2 and a capacitor C3 to form a noise reduction circuit to reduce signal noise, meanwhile, a signal check circuit consisting of the operational amplifier AR3, the operational amplifier AR5 and the capacitor C6 is used for detecting the peak value of the signal, the operational amplifier AR2 is used for outputting a signal of a synchronous noise reduction circuit, the operational amplifier AR6 is used for comparing a signal at the output end of the operational amplifier AR2 with a signal at the non-inverting input end of the operational amplifier AR3, and finally the operational amplifier AR6 outputs a signal to trigger the signal transmitter E1 to send the signal to the power grid terminal controller.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1, a signal checking circuit formed by an operational amplifier AR3, an operational amplifier AR5 and a capacitor C6 is used for detecting a signal peak value, a resistor R5 is used for dividing voltage to continuously charge a capacitor C6, at the moment, the non-inverting input end of the operational amplifier AR3 uses a capacitor C5 for filtering, when the capacitor C6 is charged, the potential of the non-inverting input end of the operational amplifier AR5 increases with time, the potential of the output signal of the operational amplifier AR5 is limited in a set range through a capacitor C5 and a capacitor C6, the range value of the output signal can be adjusted through adjusting the resistance value of a resistor R9, the output signal of an operational amplifier AR2 synchronous noise reduction circuit is used, the output signal of the operational amplifier AR6 is used for comparing the output signal of the operational amplifier AR2 with the signal of the non-inverting input end of the operational amplifier AR3, if the transmission rate of a data signal is abnormal, the potential of the synchronous signal of the operational amplifier 37AR 84 is larger, but the charging time of the capacitor C, namely, the output signal of the input operational amplifier AR4 is high level, the trigger signal emitter E1 works, the power grid terminal controller receives the signal and displays the fault reason, and the practical value and the popularization value are very high.
Drawings
Fig. 1 is a schematic circuit diagram of a power grid terminal information communication system 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.
A power grid terminal information communication system comprises a power grid signal transmitter, a power grid signal receiver, a controller and a signal detection module, wherein the power grid signal transmitter transmits power grid information into the power grid signal receiver through a wireless network, the power grid signal receiver receives signals and inputs the signals into a power grid terminal controller, a data signal transmission rate acquisition module is arranged in the power grid signal transmitter, the signal detection module receives signals output by the data signal transmission rate acquisition module, the signal detection module comprises a rectification circuit, a synchronous verification circuit and an operational amplifier transmitting circuit, the rectification circuit receives signals output by the data signal transmission rate acquisition module, the signals are rectified by a variable resistor RW1, a capacitor C1 and a capacitor C2, the synchronous verification circuit utilizes an operational amplifier AR1, a triode Q2 and a capacitor C3 to form a noise reduction circuit to reduce signal noise, and utilizes an operational amplifier AR3, an operational amplifier AR3 and an, The operational amplifier AR5 and the capacitor C6 form a signal check circuit to detect the peak value of the signal, the operational amplifier AR2 is used for synchronizing the output signal of the noise reduction circuit, the operational amplifier AR6 is used for comparing the signal at the output end of the operational amplifier AR2 with the signal at the non-inverting input end of the operational amplifier AR3, and finally the operational amplifier AR6 outputs a signal to trigger a signal transmitter E1 to transmit the signal to a power grid terminal controller;
the synchronous checking circuit uses an operational amplifier AR1, a triode Q2 and a capacitor C3 to form a noise reduction circuit to reduce signal noise, uses a triode Q2 to cut off voltage to limit the output signal potential of the operational amplifier AR1, simultaneously limits the charging range of a capacitor C3, ensures the stability of the output signal potential of the operational amplifier AR1, uses an operational amplifier AR3, an operational amplifier AR5 and a capacitor C6 to form a signal checking circuit to detect the peak value of a signal, a resistor 737R 6 plays a voltage division role to continuously charge the capacitor C6, the non-inverting input end of the operational amplifier AR3 uses a capacitor C5 for filtering, when the capacitor C6 is charged, the non-inverting input end of the operational amplifier AR5 increases with time, the output signal potential of the operational amplifier AR5 is limited in a set range through a capacitor C5 and a capacitor C6, the range value of the output signal can be adjusted by adjusting the resistance value of a resistor R9, a resistor R7 is a voltage division resistor, and the operational amplifier AR2 synchronously uses, an operational amplifier AR6 is used for comparing a signal at the output end of an operational amplifier AR2 with a signal at the in-phase input end of an operational amplifier AR3, if the data signal transmission rate is abnormal, the potential of a synchronous signal of the operational amplifier AR2 is larger, but the charging time of a capacitor C6 is shorter, at the moment, the output signal of the operational amplifier AR5 is larger, the output signal of the operational amplifier AR6 is smaller, namely, the output signal of the input operational amplifier AR4 is high level, and a signal emitter E1 is triggered to work, otherwise, the output signal of the operational amplifier AR4 is low level and the signal emitter E1 cannot be triggered to work;
the synchronous checking circuit has a specific structure that a non-inverting input end of an operational amplifier AR1 is connected with one end of a resistor R2 and one end of a capacitor C3, an inverting input end of the operational amplifier AR1 is connected with one end of the resistor R1 and one end of the resistor R1, the other end of the resistor R1 is connected with the non-inverting input end of the resistor R1 and the non-inverting input end of the operational amplifier AR1, an output end of the operational amplifier AR1 is connected with a collector of a transistor Q1, the other end of the capacitor C1 and one end of the resistor R1, one end of the resistor R1 and the non-inverting input end of the operational amplifier AR1, the inverting input end of the operational amplifier AR1 and one end of the resistor R1, a base of the transistor Q1 is connected with the other end of the resistor R1, an emitter of the transistor Q1 is connected with one end of the capacitor C1, the other end of the capacitor C1 is connected with the ground, the other end of the resistor R1 and one end of the capacitor R1 and the output end of the capacitor R1, the other end of the resistor R9 is connected to the non-inverting input terminal of the amplifier AR5 and one end of the resistor R8, the output terminal of the amplifier AR5 is connected to the non-inverting input terminal of the amplifier AR4 and the other ends of the resistor R7 and the resistor R8, the inverting input terminal of the amplifier AR2 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to the output terminal of the amplifier AR2 and one end of the resistor R11, the other end of the resistor R11 is connected to the inverting input terminal of the amplifier AR6, the non-inverting input terminal of the amplifier AR6 is connected to the other end of the resistor R10, and the output terminal of the amplifier AR6 is connected.
On the basis of the scheme, the operational amplifier transmitting circuit amplifies signals by using an operational amplifier AR4, a signal transmitter E1 is triggered to transmit signals to a power grid terminal controller, the inverting input end of the operational amplifier AR4 is connected with one end of a resistor R14, one end of a resistor R15 and the other end of a resistor R13, the other end of the resistor R14 is grounded, the output end of the operational amplifier AR4 is connected with the other end of the resistor R15 and one end of a resistor R16, and the other end of the resistor R16 is connected with the signal transmitter E1;
the rectifying circuit rectifies signals by using a variable resistor RW1, a capacitor C1 and a capacitor C2, a contact 3 of the variable resistor RW1 is connected with a non-inverting input end of the amplifier AR2, the variable resistor RW11 is connected with a cathode of the diode D9 and one end of the capacitor C1, a contact 1 of the variable resistor RW1 is connected with an anode of the diode D4 and one end of the capacitor C2, a cathode of the diode D4 is connected with an anode of the diode D9, the other end of the capacitor C1, the other end of the capacitor C2 and one end of the resistor R1, and the other end of the resistor R1 is connected with a data signal transmission rate signal at the network information transmitting end.
When the invention is used in detail, the power grid terminal information communication system comprises a power grid signal transmitter, a power grid signal receiver, a controller and a signal detection module, wherein the power grid signal transmitter transmits power grid information into the power grid signal receiver through a wireless network, the power grid signal receiver receives signals and inputs the signals into a power grid terminal controller, a data signal transmission rate acquisition module is arranged in the power grid signal transmitter, the signal detection module receives signals output by the data signal transmission rate acquisition module, the signal detection module comprises a rectification circuit, a synchronous check circuit and an operational amplifier transmitting circuit, the rectification circuit receives the signals output by the data signal transmission rate acquisition module, a variable resistor RW1, a capacitor C1 and a capacitor C2 are used for rectifying the signals, the synchronous check circuit uses an operational amplifier AR1, a triode Q2 and a capacitor C3 to form a noise reduction circuit for reducing signal noise, the triode Q2 is used for stopping voltage to limit the output signal potential of the operational amplifier AR1, the charging range of the capacitor C3 is limited, the stability of the output signal potential of the operational amplifier AR1 is ensured, the operational amplifier AR3, the operational amplifier AR5 and the capacitor C6 are used for forming a signal checking circuit to detect the peak value of a signal, the resistor R5 plays a voltage division role to continuously charge the capacitor C6, the in-phase input end of the operational amplifier AR3 uses the capacitor C5 for filtering, when the capacitor C6 is charged, the in-phase input end potential of the operational amplifier AR5 is increased along with time, the output signal potential of the operational amplifier AR5 is limited in a set range through the capacitor C5 and the capacitor C6, the range value of the output signal can be adjusted through adjusting the resistance value of the resistor R9, the resistor R7 is a voltage division resistor, the operational amplifier AR2 is used for synchronously reducing the output signal of the AR circuit, the operational amplifier AR6 is used for comparing the output signal of the operational, if the data signal transmission rate is abnormal, the potential of the synchronous signal of the operational amplifier AR2 is larger, but the charging time of the capacitor C6 is shorter, at this time, the output signal of the operational amplifier AR5 is large, the output signal of the operational amplifier AR6 is smaller, that is, the output signal of the input operational amplifier AR4 is high level, the trigger signal transmitter E1 works, otherwise, the output signal of the operational amplifier AR4 is low level, the signal transmitter E1 cannot be triggered to work, and finally, the operational amplifier AR6 outputs a signal to trigger the signal transmitter E1 to send a signal into the power grid terminal controller.
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 (4)
1. A power grid terminal information communication system comprises a power grid signal transmitter, a power grid signal receiver, a controller and a signal detection module, wherein the power grid signal transmitter transmits power grid information into the power grid signal receiver through a wireless network, the power grid signal receiver receives signals and inputs the signals into a power grid terminal controller, a data signal transmission rate acquisition module is arranged in the power grid signal transmitter, and the signal detection module receives signals output by the data signal transmission rate acquisition module, and is characterized in that the signal detection module comprises a rectification circuit, a synchronous check circuit and an operational amplifier transmitting circuit, the rectification circuit receives signals output by the data signal transmission rate acquisition module, a variable resistor RW1, a capacitor C1 and a capacitor C2 are used for rectifying the signals, the synchronous check circuit uses an operational amplifier AR1, a triode Q2 and a capacitor C3 to form a noise reduction circuit for reducing signal noise, meanwhile, a signal check circuit consisting of the operational amplifier AR3, the operational amplifier AR5 and the capacitor C6 is used for detecting the peak value of the signal, the operational amplifier AR2 is used for outputting a signal of a synchronous noise reduction circuit, the operational amplifier AR6 is used for comparing a signal at the output end of the operational amplifier AR2 with a signal at the non-inverting input end of the operational amplifier AR3, and finally the operational amplifier AR6 outputs a signal to trigger the signal transmitter E1 to send the signal to the power grid terminal controller.
2. The system according to claim 1, wherein the synchronization checking circuit comprises an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to one terminal of a resistor R2 and a capacitor C3, an inverting input terminal of the operational amplifier AR1 is connected to one terminal of a resistor R3 and a resistor R4, the other terminal of a resistor R2 is connected to the other terminal of a resistor R3 and a non-inverting input terminal of the operational amplifier AR2, an output terminal of the operational amplifier AR1 is connected to a collector of a transistor Q2, the other terminal of the capacitor C3 and a resistor R3, one terminal of a capacitor C3 and a resistor R3, and a non-inverting input terminal of the operational amplifier AR3, one terminal of the resistor R3, a base of the transistor Q3, an emitter of the transistor Q3 is connected to one terminal of the capacitor C3, the other terminal of the capacitor C3 is connected to ground, the other terminal of the resistor R3 and the inverting input terminal of the operational amplifier AR3 are connected to ground, and the other terminal of the resistor R3 and the resistor R3, One end of a capacitor C6, the output end of an operational amplifier AR3 is connected with one end of a resistor R9 and the other end of a capacitor C6, the other end of a resistor R9 is connected with the non-inverting input end of an operational amplifier AR5 and one end of a resistor R8, the output end of an operational amplifier AR5 is connected with the non-inverting input end of an operational amplifier AR4, the other ends of the resistors R7 and R8, the inverting input end of an operational amplifier AR2 is connected with one end of a resistor R12, the other end of the resistor R12 is connected with the output end of an operational amplifier AR2 and one end of a resistor R11, the other end of a resistor R11 is connected with the inverting input end of an operational amplifier AR6, the non-inverting input end of the operational amplifier AR6 is connected with the other end of a.
3. The system of claim 1, wherein the operational amplifier transmitting circuit comprises an operational amplifier AR4, an inverting input terminal of the operational amplifier AR4 is connected to one end of a resistor R14, one end of a resistor R15, and the other end of a resistor R13, the other end of a resistor R14 is grounded, an output terminal of the operational amplifier AR4 is connected to the other end of a resistor R15 and one end of a resistor R16, and the other end of a resistor R16 is connected to the signal transmitter E1.
4. The system of claim 1, wherein the rectifier circuit comprises a variable resistor RW1, the third contact of the variable resistor RW1 is connected to the non-inverting input terminal of the amplifier AR2, the variable resistor RW1 is connected to the cathode of the diode D9 and one terminal of the capacitor C1, the first contact of the variable resistor RW1 is connected to the anode of the diode D4 and one terminal of the capacitor C2, the cathode of the diode D4 is connected to the anode of the diode D9 and one terminal of the capacitor C1, the other terminal of the capacitor C2 and one terminal of the resistor R1, and the other terminal of the resistor R1 is connected to the data signal transmission rate signal at the network information transmitting terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411750.7A CN111010205B (en) | 2019-12-31 | 2019-12-31 | Power grid terminal information communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911411750.7A CN111010205B (en) | 2019-12-31 | 2019-12-31 | Power grid terminal information communication system |
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| CN111010205A CN111010205A (en) | 2020-04-14 |
| CN111010205B true CN111010205B (en) | 2021-04-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10262367A (en) * | 1996-12-25 | 1998-09-29 | Matsushita Electric Ind Co Ltd | Switching power device |
| CN109088608A (en) * | 2018-08-08 | 2018-12-25 | 义乌工商职业技术学院 | A kind of electronic equipment information processing system |
| CN208424355U (en) * | 2018-07-06 | 2019-01-22 | 杭州诚道科技股份有限公司 | A kind of one-stop intelligent movable police terminal of opening |
| CN208818787U (en) * | 2018-09-17 | 2019-05-03 | 国网河南省电力公司商丘供电公司 | A kind of quick positioning failure instrument of power distribution network |
| CN110417433A (en) * | 2019-08-30 | 2019-11-05 | 黄河科技学院 | A kind of agricultural greenhouse data transmission system |
-
2019
- 2019-12-31 CN CN201911411750.7A patent/CN111010205B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10262367A (en) * | 1996-12-25 | 1998-09-29 | Matsushita Electric Ind Co Ltd | Switching power device |
| CN208424355U (en) * | 2018-07-06 | 2019-01-22 | 杭州诚道科技股份有限公司 | A kind of one-stop intelligent movable police terminal of opening |
| CN109088608A (en) * | 2018-08-08 | 2018-12-25 | 义乌工商职业技术学院 | A kind of electronic equipment information processing system |
| CN208818787U (en) * | 2018-09-17 | 2019-05-03 | 国网河南省电力公司商丘供电公司 | A kind of quick positioning failure instrument of power distribution network |
| CN110417433A (en) * | 2019-08-30 | 2019-11-05 | 黄河科技学院 | A kind of agricultural greenhouse data transmission system |
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