CN209994509U - Intelligent data transmission system for miniature electric energy meter - Google Patents
Intelligent data transmission system for miniature electric energy meter Download PDFInfo
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- CN209994509U CN209994509U CN201920901148.0U CN201920901148U CN209994509U CN 209994509 U CN209994509 U CN 209994509U CN 201920901148 U CN201920901148 U CN 201920901148U CN 209994509 U CN209994509 U CN 209994509U
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Abstract
The utility model discloses a data intelligent transmission system of a micro electric energy meter, which comprises a signal frequency acquisition circuit, a limiting regulation circuit and an operational amplifier transmitting circuit, the signal frequency acquisition circuit adopts a frequency acquisition device J1 with the model of SJ-ADC to acquire signals at the input end of an analog signal transmission channel in the micro electric energy meter data intelligent transmission system, the amplitude limiting adjusting circuit utilizes a diode D2 and a diode D1 to form an amplitude limiting circuit to limit signals, meanwhile, an operational amplifier AR1 is used for amplifying signals in phase, finally, a triode Q1 and a triode Q2 are used for forming a push-pull circuit to reduce the signal conduction loss, the operational amplifier transmitting circuit uses an operational amplifier AR2 for amplifying signals in phase, and the triode Q4 is used for feeding back and adjusting the output signal of the operational amplifier AR1, and the signal can be automatically calibrated and then sent to a control terminal in the intelligent data transmission system of the miniature electric energy meter through the signal emitter E1.
Description
Technical Field
The utility model relates to the technical field of circuits, especially, relate to a miniature electric energy meter data intelligence transmission system.
Background
At present, the intelligent transmission system for the data of the miniature electric energy meter mainly comprises an electric energy meter data acquisition module, a control terminal and a signal transmission module, wherein the control terminal in the intelligent transmission system for the data of the miniature electric energy meter receives the signal of the electric energy meter data acquisition module through the signal transmission module, an analog signal transmission channel is one part of the signal transmission module, and a frequency hopping phenomenon often occurs in the signal transmission process, so that the error of the signal received by the control terminal in the intelligent transmission system for the data of the miniature electric energy meter is large.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming the defect of prior art, the utility model aims to provide a miniature electric energy meter data intelligent transmission system has the characteristics of thinking ingenious, humanized design, can be to the signal real-time detection of analog signal transmission channel input among the miniature electric energy meter data intelligent transmission system, to signal automatic calibration after in signal transmitter E1 sends control terminal among the miniature electric energy meter data intelligent transmission system.
The technical scheme includes that the intelligent transmission system for the data of the miniature electric energy meter comprises a signal frequency acquisition circuit, an amplitude limiting regulation circuit and an operational amplifier transmitting circuit, wherein the signal frequency acquisition circuit acquires a signal at the input end of an analog signal transmission channel in the intelligent transmission system for the data of the miniature electric energy meter by using a frequency acquisition device J1 with the model of SJ-ADC, the analog signal transmission channel is a channel for receiving a signal of an electric energy meter data acquisition module by a control terminal in the intelligent transmission system for the data of the miniature electric energy meter, the amplitude limiting regulation circuit uses a diode D2 and a diode D1 to form an amplitude limiting circuit to limit the signal, simultaneously uses an operational amplifier AR1 to amplify the signal in phase, finally uses a triode Q1 and a triode Q2 to form a push-pull circuit to reduce the conduction loss of the signal, the operational amplifier transmitting circuit uses an operational amplifier AR2 to amplify the signal in phase, and uses a triode Q4, the data are sent to a control terminal in the intelligent data transmission system of the miniature electric energy meter through a signal transmitter E1;
the amplitude limiting adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R2, the anode of a diode D2 and the cathode of a diode D1, the cathode of a diode D2 is connected with the anode of a diode D1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3 and the emitter of a triode Q4, the other end of the resistor R3 is grounded, the output end of the operational amplifier AR1 is connected with a triode Q1, the base of a triode Q2, the base of a triode Q4 and the other end of a resistor R2, the emitter of a triode Q1 is connected with the emitter of a triode Q2 and the base of a triode Q3, the collector of a triode Q9 is connected with one end of a variable resistor R4, the other end of a variable resistor R4 is grounded, and the collector of a triode Q.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages that;
1, limiting a signal by using an amplitude limiting circuit consisting of a diode D2 and a diode D1, preventing the signal potential from being overlarge, amplifying the signal by using an operational amplifier AR1 in phase, amplifying the signal power, compensating the signal conduction loss, and finally forming a push-pull circuit by using a triode Q1 and a triode Q2 to further reduce the signal conduction loss, wherein a triode Q3 is an amplifying triode, amplifies the signal, and filters an abnormal low-level signal, so that the accuracy of the signal received by a control terminal in the intelligent data transmission system of the miniature electric energy meter is ensured;
2. the operational amplifier AR2 is used for amplifying signals in phase, the output signal of the operational amplifier AR1 is fed back and adjusted by the triode Q4, the high-level conduction property of the triode Q1 is utilized to judge the potential difference of the output signals of the operational amplifier AR1 and the operational amplifier AR2, when the potential difference between the output signals of the operational amplifier AR1 and the operational amplifier AR2 is too large, the signal amplitude is considered to be too large, the triode Q1 feeds back signals to the reverse-phase input end of the operational amplifier AR1, the signal amplitude is reduced, and finally the signals are sent to a control terminal in the intelligent data transmission system of the miniature electric energy meter through the signal transmitter E1, and the signals.
Drawings
Fig. 1 is the utility model relates to a miniature electric energy meter data intelligence transmission system's signal frequency acquisition circuit diagram.
Fig. 2 is the utility model relates to a miniature electric energy meter data intelligence transmission system's amplitude limiting adjustment circuit diagram.
Fig. 3 is the utility model relates to a transmission circuit diagram is put in miniature electric energy meter data intelligence transmission system's fortune.
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 fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The embodiment I provides a micro electric energy meter data intelligent transmission system, which comprises a signal frequency acquisition circuit, an amplitude limiting adjustment circuit and an operational amplifier transmitting circuit, wherein the signal frequency acquisition circuit acquires a signal at the input end of an analog signal transmission channel in the micro electric energy meter data intelligent transmission system by using a frequency acquisition device J1 with the model number of SJ-ADC, the analog signal transmission channel is a channel for receiving a signal of an electric energy meter data acquisition module by a control terminal in the micro electric energy meter data intelligent transmission system, the amplitude limiting adjustment circuit uses a diode D2 and a diode D1 to form an amplitude limiting circuit to limit the signal, simultaneously uses an operational amplifier AR1 to amplify the signal in phase, finally uses a triode Q1 and a triode Q2 to form a push-pull circuit to reduce the signal conduction loss, the operational amplifier transmitting circuit uses an operational amplifier AR2 to amplify the signal in phase, and uses a triode Q4 to feedback and adjust the output signal of the, the data are sent to a control terminal in the intelligent data transmission system of the miniature electric energy meter through a signal transmitter E1;
the amplitude limiting adjusting circuit limits signals by using an amplitude limiting circuit consisting of a diode D2 and a diode D1, prevents signal potential from being overlarge, amplifies signals in phase by using an operational amplifier AR1, amplifies signal power and compensates signal conduction loss, and finally, a push-pull circuit consisting of a triode Q1 and a triode Q2 is used for further reducing signal conduction loss, wherein a triode Q3 is an amplifying triode, amplifies the signals and filters abnormal low-level signals, so that the accuracy of the signals received by a control terminal in the intelligent data transmission system of the miniature electric energy meter is ensured, the in-phase input end of the operational amplifier AR1 is connected with one end of a resistor R2, the anode of a diode D2, the cathode of a diode D1, the cathode of the diode D2 is connected with the anode of a diode D1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3 and the emitter of a triode Q4, the other end of a resistor R3 is grounded, the output end of the operational, The base electrode of the triode Q2, the base electrode of the triode Q4 and the other end of the resistor R2, the emitter electrode of the triode Q1 is connected with the emitter electrode of the triode Q2 and the base electrode of the triode Q3, the collector electrode of the triode Q2 is connected with one end of the variable resistor R4, the other end of the variable resistor R4 is grounded, and the collector electrode of the triode Q3 is connected with the collector electrode of the triode Q1 and the +5V power supply.
In the second embodiment, on the basis of the first embodiment, the operational amplifier transmitting circuit uses an operational amplifier AR2 to amplify a signal in phase, uses a transistor Q4 to feedback and adjust an output signal of an operational amplifier AR1, uses a high-level conduction property of a transistor Q1 to determine a potential difference of output signals of the operational amplifier AR1 and the operational amplifier AR2, when the potential difference is too large, it is considered that the amplitude of the signal is too large, the transistor Q1 feeds back the signal to an inverting input terminal of the operational amplifier AR1 to reduce the amplitude of the signal, and finally sends the signal to a control terminal in the intelligent data transmission system of the miniature electric energy meter through a signal transmitter E1, for a control terminal error calibration signal in the intelligent data transmission system of the miniature electric energy meter, a non-inverting input terminal of the operational amplifier AR2 is connected to a collector of the transistor Q3 and one end of a resistor R7, the inverting input terminal of the operational amplifier AR2 is connected to one end of a resistor R6, the other end of the resistor R6 is connected to ground, The collector of the transistor Q4 and the other end of the resistor R8 are connected with the signal transmitter E1.
In a third embodiment, on the basis of the first embodiment, the signal frequency acquisition circuit is a SJ-ADC frequency collector J1, and is used for acquiring a signal at an input end of an analog signal transmission channel in the intelligent data transmission system of the miniature electric energy meter, a power supply end of the frequency collector J1 is connected to +5V and one end of a capacitor C1, a ground end of the power collector J1 is grounded, an output end of the power collector J1 is connected to the other end of the capacitor C1 and one end of a resistor R1, the other end of the resistor R1 is connected to one end of the capacitor C2 and a cathode of a diode D2, and the other end of the capacitor C2 is grounded.
The utility model discloses when specifically using, a miniature electric energy meter data intelligence transmission system, including signal frequency acquisition circuit, amplitude limiting regulating circuit and fortune transmitting circuit, signal frequency acquisition circuit application model is SJ-ADC's frequency collector J1 gathers the signal of analog signal transmission channel input in the miniature electric energy meter data intelligence transmission system, and this analog signal transmission channel is the passageway that control terminal received ammeter data acquisition module signal among the miniature electric energy meter data intelligence transmission system, amplitude limiting regulating circuit application diode D2, diode D1 constitute amplitude limiting circuit to signal spacing, prevent that the signal potential is too big, and application fortune ware AR1 cophase amplified signal simultaneously, signal power is amplified, compensates signal conduction loss, and last application triode Q1, triode Q2 constitute push-pull circuit further reduces signal conduction loss, wherein triode Q3 is for amplifying the triode, the signal is amplified, meanwhile, the abnormal low-level signal is filtered, the accuracy of the signal received by the control terminal in the intelligent data transmission system of the miniature electric energy meter is guaranteed, the operational amplifier transmitting circuit utilizes an operational amplifier AR2 to amplify the signal in phase, and utilizes a triode Q4 to feed back and adjust an output signal of the operational amplifier AR1, and the output signal is sent to the control terminal in the intelligent data transmission system of the miniature electric energy meter through a signal transmitter E1.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (3)
1. A miniature electric energy meter data intelligent transmission system comprises a signal frequency acquisition circuit, an amplitude limiting adjusting circuit and an operational amplifier transmitting circuit, and is characterized in that the signal frequency acquisition circuit acquires a signal at the input end of an analog signal transmission channel in the miniature electric energy meter data intelligent transmission system by using a frequency collector J1 with the model of SJ-ADC, the analog signal transmission channel is a channel for receiving a signal of an electric energy meter data acquisition module by a control terminal in the miniature electric energy meter data intelligent transmission system, the amplitude limiting adjusting circuit uses a diode D2 and a diode D1 to form an amplitude limiting circuit to limit the signal, simultaneously uses an operational amplifier AR1 to amplify the signal in phase, finally uses a triode Q1 and a triode Q2 to form a push-pull circuit to reduce the signal conduction loss, the operational amplifier transmitting circuit uses an operational amplifier AR2 to amplify the signal in phase, and uses the triode Q4 to feedback adjust the output signal of the operational amplifier AR1, the data are sent to a control terminal in the intelligent data transmission system of the miniature electric energy meter through a signal transmitter E1;
the amplitude limiting adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R2, the anode of a diode D2 and the cathode of a diode D1, the cathode of a diode D2 is connected with the anode of a diode D1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R3 and the emitter of a triode Q4, the other end of the resistor R3 is grounded, the output end of the operational amplifier AR1 is connected with a triode Q1, the base of a triode Q2, the base of a triode Q4 and the other end of a resistor R2, the emitter of a triode Q1 is connected with the emitter of a triode Q2 and the base of a triode Q3, the collector of a triode Q9 is connected with one end of a variable resistor R4, the other end of a variable resistor R4 is grounded, and the collector of a triode Q.
2. The intelligent data transmission system for the miniature electric energy meter as claimed in claim 1, wherein the operational amplifier transmitting circuit comprises an operational amplifier AR2, the non-inverting input terminal of the operational amplifier AR2 is connected with the collector of a transistor Q3 and one end of a resistor R7, the inverting input terminal of the operational amplifier AR2 is connected with one end of a resistor R6, the other end of the resistor R6 is grounded, the output terminal of the operational amplifier AR2 is connected with the other end of the resistor R7 and one end of a resistor R8, the collector of the transistor Q4, and the other end of the resistor R8 is connected with a signal transmitter E1.
3. The intelligent data transmission system of a miniature electric energy meter as claimed in claim 1, wherein the signal frequency acquisition circuit comprises a model number SJ-ADC frequency acquisition unit J1, a power supply terminal of a frequency acquisition unit J1 is connected with +5V and one end of a capacitor C1, a ground terminal of a power acquisition unit J1 is grounded, an output terminal of the power acquisition unit J1 is connected with the other end of a capacitor C1 and one end of a resistor R1, the other end of the resistor R1 is connected with one end of a capacitor C2 and the cathode of a diode D2, and the other end of the capacitor C2 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920901148.0U CN209994509U (en) | 2019-06-17 | 2019-06-17 | Intelligent data transmission system for miniature electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920901148.0U CN209994509U (en) | 2019-06-17 | 2019-06-17 | Intelligent data transmission system for miniature electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209994509U true CN209994509U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920901148.0U Active CN209994509U (en) | 2019-06-17 | 2019-06-17 | Intelligent data transmission system for miniature electric energy meter |
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| Country | Link |
|---|---|
| CN (1) | CN209994509U (en) |
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2019
- 2019-06-17 CN CN201920901148.0U patent/CN209994509U/en active Active
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