CN217087883U - Electric power communication device - Google Patents
Electric power communication device Download PDFInfo
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- CN217087883U CN217087883U CN202220875812.0U CN202220875812U CN217087883U CN 217087883 U CN217087883 U CN 217087883U CN 202220875812 U CN202220875812 U CN 202220875812U CN 217087883 U CN217087883 U CN 217087883U
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Abstract
The utility model provides an electric power communication device, the solution of effect the signal appear the adjacent channel interference when transmitting to the service terminal, lead to the service terminal to produce the problem of influence to the analysis of signal. Device include signal reception circuit and signal operation circuit, signal reception circuit divide into two the tunnel with the signal of wireless signal transmission equipment output, the signal of the same kind carries out frequency selection back output to signal operation circuit, another way signal direct output to signal operation circuit, signal operation circuit then amplifies another way signal back and operates with signal of the same kind, at last with signal output to service terminal, guaranteed the accuracy of signal.
Description
Technical Field
The utility model relates to a power communication field, especially a power communication device.
Background
With the progress of science and technology, the development of the power communication technology is stimulated, and at present, although the power communication technology gradually matures, a power communication network has certain defects, such as the defect that a power line cannot monitor during power transmission, and the like, and the prior art sets various ways to solve the defect problem of the power communication network.
The prior art provides a power line communication device with patent number CN203689671U, the monitoring problem when traditional power line transmission electric power has been solved, the steam generator is simple in structure, and convenient and practical to install, and the signal that will gather is the real-time status information of power line and self sign and sends to service terminal through wireless signal transmission equipment, better realization service terminal also can in time learn the effect of power line state and self sign, however, the phenomenon of adjacent channel interference appears in the transmission course when with signal transmission to service terminal in wireless signal transmission equipment, lead to service terminal to exert an influence to the analysis of signal, also influence the exactness of the instruction information that service terminal sent.
Therefore, the utility model provides a new scheme to solve the problem.
Disclosure of Invention
The utility model aims at providing a not enough to prior art exists, the utility model aims at providing an electric power communication device, the effectual signal of having solved appears adjacent channel interference when transmitting to service terminal, leads to the problem that service terminal produces the influence to the analysis of signal.
The technical scheme of its solution is, a power communication device, the device includes signal receiving circuit and signal arithmetic circuit, signal receiving circuit divides into two the way with the signal of wireless signal transmission equipment output, and the signal of the same way carries out the frequency selection back output to signal arithmetic circuit, and another way signal is direct to be exported to signal arithmetic circuit, signal arithmetic circuit then amplifies another way signal back and is operated with signal of the same way, exports the signal to service terminal at last.
Furthermore, the signal receiving circuit amplifies the signal output by the wireless signal sending device and then divides the signal into two paths, one path of signal is subjected to frequency selection and then is output to the signal operation circuit, and the other path of signal is directly output to the signal operation circuit.
Further, the signal receiving circuit includes a capacitor C1, one end of the capacitor C1 is connected to the wireless signal transmitting device, the other end of the capacitor C1 is connected to one end of a resistor R7 and a base of a transistor Q1, a collector of the transistor Q1 is connected to one end of a resistor R5 and one end of a resistor R2 and is connected to the positive power source VCC, an emitter of a transistor Q1 is connected to one end of a capacitor C4 and one end of a resistor R6, the other end of the capacitor C4 is connected to the other end of a resistor R5, one end of a resistor R1 and a base of a transistor Q3, a collector of a transistor Q3 is connected to the other end of a resistor R2 and one end of a resistor R9, an emitter of a transistor Q3 is connected to one end of a resistor R3 and one end of a capacitor C3, the other end of the resistor R3 is connected to one end of a resistor R3, and one end of a capacitor C3, the other end of the capacitor C3 is connected to the same phase-releasing device 3, the output end of the operational amplifier U1B is connected with one end of a resistor R11, the other end of the resistor R11 is respectively connected with one end of a resistor R10 and the inverting end of the operational amplifier U1B, and the other end of the resistor R10 is respectively connected with the other end of the resistor R8, the other end of a capacitor C5, the other end of the capacitor C2, the other end of the resistor R4, the other end of the resistor R1 and the other end of the resistor R6 and connected in parallel to the ground.
Furthermore, the signal operation circuit amplifies the other path of signal output by the signal receiving circuit, adds the amplified other path of signal with the one path of signal, and outputs the obtained signal to the service terminal.
Further, the signal operation circuit includes a capacitor C8, one end of a capacitor C8 is connected to the output end of the operational amplifier U1B and one end of the resistor R11 in the signal receiving circuit, the other end of the capacitor C8 is connected to one end of a resistor R3, one end of the resistor R12 and the base of the transistor Q2, the collector of the transistor Q2 is connected to the emitter of the transistor Q4, the emitter of the transistor Q2 is connected to one end of a resistor R22 and one end of a capacitor C6, the collector of the transistor Q4 is connected to one end of a resistor R19 and one end of the resistor R15, the other end of the resistor R19 is connected to the other end of the resistor R12, one end of the resistor R20 and one end of the resistor R2 in the signal receiving circuit, the base of the transistor Q4 is connected to the other end of a resistor R20 and one end of the resistor R21, one end of the capacitor C9 and the other end of the resistor R15 are connected to one end of the resistor R13 in the signal receiving circuit, One end of a resistor R14 and the same-phase end of an operational amplifier U3B, the inverting end of the operational amplifier U3B is connected to one end of a resistor R17 and one end of a resistor R16 respectively, the other end of a resistor R16 is connected to the output end of the operational amplifier U3B and one end of a resistor R18 respectively, the other end of the resistor R18 is connected to the same-phase end of the operational amplifier U2B, the output end of the operational amplifier U2B is connected to a service terminal and the inverting end of the operational amplifier U2B respectively, the other end of the resistor R14 is connected to one end of a resistor R9 in the signal receiving circuit respectively, and the other end of a resistor R13 is connected to the other end of the resistor R3, the other end of a capacitor C6, the other end of the resistor R22, the other end of the resistor R21, the other end of the capacitor C9, the other end of the resistor R17 and the other end of a resistor R6 in the signal receiving circuit respectively and connected in parallel to ground.
The utility model discloses a following beneficial effect:
utilize resistance R9, electric capacity C7, resistance R8, electric capacity C5 to carry out the frequency selection through the signal receiving circuit who sets up with the received signal, frequency selection with the signal place comes out, avoid the existence of clutter, thereby also avoid the noise that triode Q1 carried to the influence of signal, eliminate the influence of adjacent channel interference to the signal simultaneously, thereby improve the accuracy of service terminal to signal analysis, avoided the signal when sending to the service terminal from wireless signal transmitting equipment because the existence of adjacent channel interference influences the analysis of service terminal to the signal, the accuracy of signal has been guaranteed.
Drawings
Fig. 1 is a schematic diagram of a signal receiving circuit according to the present invention.
Fig. 2 is a schematic diagram of the signal operation circuit of the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and advantages 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. 1-2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides an electric power communication device, uses on service terminal, the device includes signal receiving circuit and signal arithmetic circuit, signal receiving circuit divide into two the tunnel with the signal of wireless signal transmission equipment output, and the signal of the same kind is exported to signal arithmetic circuit after carrying out the frequency selection, and another way signal is direct exports to signal arithmetic circuit, signal arithmetic circuit then amplifies another way signal after with signal operation all the way, exports the signal to service terminal at last.
The signal receiving circuit couples a signal output by the wireless signal sending equipment to a triode Q1 by using a capacitor C1, performs impedance matching on the signal by using a triode Q1 to realize complete signal receiving, reduces signal loss when the signal is received, amplifies the signal by using a triode Q3 to avoid the phenomenon that the distance between a service terminal and the wireless signal sending equipment is too far, so that the signal is greatly attenuated, the signal cannot pass through the line loss of the service terminal, the analysis of the signal by the service terminal is influenced, the signal is divided into two paths for transmission after being amplified by a triode Q3, one path of signal is subjected to frequency selection by a resistor R9, a capacitor C7, a resistor R8 and a capacitor C5, the frequency of the signal is selected, the existence of noise waves is avoided, the influence of noise carried by the triode Q1 on the signal is avoided, and the influence of adjacent path interference on the signal is eliminated, therefore, the accuracy of the service terminal in analyzing the signals is improved, the operational amplifier U1B is used for transmitting the frequency-selected signals to the signal operation circuit, and the other path of signals are directly transmitted to the signal operation circuit;
the signal receiving circuit comprises a capacitor C1, one end of a capacitor C1 is connected with a wireless signal transmitting device, the other end of the capacitor C1 is respectively connected with one end of a resistor R7 and a base of a triode Q1, a collector of a triode Q1 is respectively connected with one end of the resistor R5 and one end of a resistor R2 and is connected with a positive power supply VCC, an emitter of the triode Q1 is respectively connected with one end of a capacitor C4 and one end of a resistor R6, the other end of the capacitor C4 is respectively connected with the other end of a resistor R5, one end of the resistor R1 and a base of a triode Q3, a collector of the triode Q3 is respectively connected with the other end of a resistor R2 and one end of a resistor R9, an emitter of the triode Q3 is respectively connected with one end of a resistor R4 and one end of a capacitor C2, the other end of a resistor R9 is connected with one end of a capacitor C7, the other end of a capacitor C7 is respectively connected with one end of a resistor R8, one end of a capacitor C5, and a homodyne of an fortune U1B, the output end of the operational amplifier U1B is connected with one end of a resistor R11, the other end of the resistor R11 is respectively connected with one end of a resistor R10 and the inverting end of the operational amplifier U1B, and the other end of the resistor R10 is respectively connected with the other end of the resistor R8, the other end of a capacitor C5, the other end of the capacitor C2, the other end of the resistor R4, the other end of the resistor R1 and the other end of the resistor R6 and connected in parallel to the ground.
The signal operation circuit utilizes the capacitor C8 to receive the other signal transmitted by the signal receiving circuit, the capacitor C8 transmits the other signal to the amplifier composed of the triode Q2 and the triode Q4 for re-amplification, so as to avoid the phenomenon that the signal is too large in loss in the transmission process, the triode Q3 cannot restore the signal to the normal amplitude level, the amplified other signal is transmitted to the operational amplifier U3B through the resistor R15, the operational amplifier U3B performs addition operation on the amplified other signal and the signal transmitted by the signal receiving circuit, and the effect of synthesizing the two signals into one signal is realized, meanwhile, noise existing when the signal is output from the wireless equipment sending equipment is eliminated, the accuracy of the signal is further improved, and finally the signal is output to a service terminal through an operational amplifier U2B, so that the service terminal can accurately analyze the signal;
the signal operation circuit comprises a capacitor C8, one end of a capacitor C8 is connected with the output end of an operational amplifier U1B and one end of a resistor R11 in a signal receiving circuit, the other end of the capacitor C8 is respectively connected with one end of a resistor R3, one end of the resistor R12 and the base of a triode Q2, the collector of the triode Q2 is connected with the emitter of a triode Q4, the emitter of the triode Q2 is respectively connected with one end of a resistor R22 and one end of a capacitor C6, the collector of the triode Q4 is respectively connected with one end of a resistor R19 and one end of a resistor R15, the other end of the resistor R19 is respectively connected with the other end of a resistor R12, one end of a resistor R20 and one end of a resistor R2 in the signal receiving circuit and is connected with a positive power supply VCC, the base of a triode Q4 is respectively connected with the other end of a resistor R20 and one end of a resistor R21, one end of the capacitor C9, the other end of a resistor R15 and the other end of a resistor R13, One end of a resistor R14 and the same-phase end of an operational amplifier U3B, the inverting end of the operational amplifier U3B is connected to one end of a resistor R17 and one end of a resistor R16 respectively, the other end of a resistor R16 is connected to the output end of the operational amplifier U3B and one end of a resistor R18 respectively, the other end of the resistor R18 is connected to the same-phase end of the operational amplifier U2B, the output end of the operational amplifier U2B is connected to a service terminal and the inverting end of the operational amplifier U2B respectively, the other end of the resistor R14 is connected to one end of a resistor R9 in the signal receiving circuit respectively, and the other end of a resistor R13 is connected to the other end of the resistor R3, the other end of a capacitor C6, the other end of the resistor R22, the other end of the resistor R21, the other end of the capacitor C9, the other end of the resistor R17 and the other end of a resistor R6 in the signal receiving circuit respectively and connected in parallel to ground.
When the utility model is used, the signal receiving circuit utilizes the capacitor C1 to couple the signal of wireless signal sending equipment output to the triode Q1, and utilizes the triode Q1 to carry out impedance matching on the signal to realize receiving the signal completely, and utilizes the triode Q3 to amplify the signal, so as to avoid the great attenuation that the signal receives, make the signal unable to pass through the line loss of service terminal, influence the analysis of service terminal to the signal, the triode Q3 is divided into two paths to transmit after amplifying the signal, one path of signal is through the resistor R9, the capacitor C7, the resistor R8, the capacitor C5 carries out frequency selection, the frequency at which the signal is located is selected, avoid the existence of clutter, thereby also avoid the noise that the triode Q1 carries to the influence of signal, eliminate the influence of adjacent channel interference to the signal simultaneously, thereby improve the accuracy of service terminal to the signal analysis, the operational amplifier U1B is used to transmit the frequency-selected signal to the signal operation circuit, and the other signal is directly transmitted to the signal operation circuit, the signal operation circuit utilizes the capacitor C8 to receive the other path of signal transmitted by the signal receiving circuit, the capacitor C8 transmits the other path of signal to the amplifier consisting of the triode Q2 and the triode Q4 for re-amplification, so that the phenomenon that the signal is too large in loss in the transmission process and cannot be restored to a normal amplitude level by the triode Q3 is avoided, the amplified other path of signal is transmitted to the operational amplifier U3B through the resistor R15, the operational amplifier U3B performs addition operation on the amplified other path of signal and the one path of signal transmitted by the signal receiving circuit, the effect of synthesizing the two paths of signal into the one path of signal is realized, and finally the signal is output to the service terminal through the operational amplifier U2B, so that the service terminal can accurately analyze the signal.
The utility model discloses realize following beneficial effect:
(1) the frequency of a received signal is selected by the aid of the resistor R9, the capacitor C7, the resistor R8 and the capacitor C5 through the arranged signal receiving circuit, the frequency of the signal is selected, the existence of noise is avoided, the influence of noise carried by the triode Q1 on the signal is avoided, the influence of adjacent channel interference on the signal is eliminated, the accuracy of signal analysis by the service terminal is improved, the problem that the analysis of the signal by the service terminal is influenced by the existence of the adjacent channel interference when the signal is sent to the service terminal from the wireless signal sending equipment is avoided, and the accuracy of the signal is guaranteed;
(2) through setting up signal operation circuit and utilizing fortune amplifier U3B to add operation with another way signal all the way signal, both realized merging into the effect all the way with the signal, simultaneously with the signal noise that exists when exporting from wireless equipment transmitting equipment eliminate, further improve the accuracy of signal, and set up triode Q2 and triode Q4 in signal operation circuit and amplify another way signal, it is too big to avoid the loss that the signal received in transmission process, the problem that triode Q3 can't restore the signal to normal amplitude level exists, in order to do benefit to the analysis of service terminal to the signal.
Claims (5)
1. The electric power communication device is characterized by comprising a signal receiving circuit and a signal operation circuit, wherein the signal receiving circuit divides signals output by wireless signal sending equipment into two paths, one path of signals is output to the signal operation circuit after frequency selection, the other path of signals is directly output to the signal operation circuit, the signal operation circuit amplifies the other path of signals and then operates with the other path of signals, and finally the signals are output to a service terminal.
2. The power communication device according to claim 1, wherein the signal receiving circuit amplifies the signal output from the wireless signal transmitting device and divides the amplified signal into two paths, one path of the signal is frequency-selected and then output to the signal computing circuit, and the other path of the signal is directly output to the signal computing circuit.
3. A power communication apparatus as claimed in claim 2, wherein the signal receiving circuit comprises a capacitor C1, one end of the capacitor C1 is connected to the wireless signal transmitting device, the other end of the capacitor C1 is connected to one end of a resistor R7 and a base of a transistor Q1, a collector of a transistor Q1 is connected to one end of a resistor R5 and one end of a resistor R2 respectively and is connected to the positive power VCC, an emitter of a transistor Q1 is connected to one end of a capacitor C4 and one end of a resistor R6 respectively, the other end of a capacitor C4 is connected to the other end of a resistor R5, one end of a resistor R1 and a base of a transistor Q3, a collector of a transistor Q3 is connected to the other end of a resistor R2 and one end of a resistor R9 respectively, an emitter of a transistor Q3 is connected to one end of a resistor R4 and one end of a capacitor C2 respectively, the other end of a resistor R9 is connected to one end of a capacitor C7, and the other end of a capacitor C7 is connected to one end of a resistor R8 respectively and one end of a resistor R8, One end of a capacitor C5 and the non-inverting end of an operational amplifier U1B, the output end of the operational amplifier U1B is connected with one end of a resistor R11, the other end of the resistor R11 is respectively connected with one end of a resistor R10 and the inverting end of the operational amplifier U1B, the other end of the resistor R10 is respectively connected with the other end of the resistor R8, the other end of a capacitor C5, the other end of a capacitor C2, the other end of a resistor R4, the other end of a resistor R1 and the other end of the resistor R6, and the two ends are connected in parallel and grounded.
4. A power communication apparatus according to claim 1, wherein the signal operation circuit amplifies the other signal outputted from the signal receiving circuit, adds the amplified other signal to the one signal, and outputs the resultant signal to the service terminal.
5. The power communication device as claimed in claim 4, wherein the signal operation circuit comprises a capacitor C8, one end of the capacitor C8 is connected to the output terminal of the operational amplifier U1B and one end of the resistor R11 in the signal receiving circuit, the other end of the capacitor C8 is connected to one end of a resistor R3, one end of a resistor R12 and the base of a transistor Q2, the collector of the transistor Q2 is connected to the emitter of the transistor Q4, the emitter of the transistor Q2 is connected to one end of a resistor R22 and one end of a capacitor C6, the collector of the transistor Q4 is connected to one end of a resistor R19 and one end of a resistor R15, the other end of the resistor R19 is connected to the other end of a resistor R12, one end of a resistor R20 and one end of a resistor R2 in the signal receiving circuit, the base of the transistor Q4 is connected to the other end of a resistor R20 and one end of a resistor R21 and one end of a capacitor C9, the other end of the resistor R15 is connected with one end of a connecting resistor R13, one end of a resistor R14 and the same-phase end of an operational amplifier U3B respectively, the inverting end of the operational amplifier U3B is connected with one end of a resistor R17 and one end of a resistor R16 respectively, the other end of the resistor R16 is connected with the output end of the operational amplifier U3B and one end of a resistor R18 respectively, the other end of the resistor R18 is connected with the same-phase end of the operational amplifier U2B, the output end of the operational amplifier U2B is connected with a service terminal and the inverting end of the operational amplifier U2B respectively, the other end of the resistor R14 is connected with one end of the resistor R9 in the signal receiving circuit respectively, the other end of the resistor R13 is connected with the other end of the resistor R3, the other end of the capacitor C6, the other end of the resistor R22, the other end of the resistor R21, the other end of the capacitor C9, the other end of the resistor R17 and the other end of the resistor R6 in the signal receiving circuit are connected in parallel to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220875812.0U CN217087883U (en) | 2022-04-16 | 2022-04-16 | Electric power communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220875812.0U CN217087883U (en) | 2022-04-16 | 2022-04-16 | Electric power communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217087883U true CN217087883U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220875812.0U Active CN217087883U (en) | 2022-04-16 | 2022-04-16 | Electric power communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217087883U (en) |
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2022
- 2022-04-16 CN CN202220875812.0U patent/CN217087883U/en active Active
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