CN210469299U - Electronic communication system - Google Patents
Electronic communication system Download PDFInfo
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- CN210469299U CN210469299U CN201922473593.4U CN201922473593U CN210469299U CN 210469299 U CN210469299 U CN 210469299U CN 201922473593 U CN201922473593 U CN 201922473593U CN 210469299 U CN210469299 U CN 210469299U
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- operational amplifier
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- radio frequency
- circuit
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Abstract
The utility model discloses an electronic communication system, including treater and the wireless receiver who is used for receiving radio frequency signal, the output signal of wireless receiver loops through the buffer circuit, feedback regulating circuit and filter circuit are handled and are sent into the treater, feedback regulating circuit includes fortune amplifier U2, U3, fortune amplifier U2, U3 adopts the form of establishing ties to carry out the rapid amplification to the output signal of buffer circuit, utilize the negative feedback principle to compensate fortune in the process of putting simultaneously, wireless receiver loops through the buffer circuit with the radio frequency signal received, feedback regulating circuit and filter circuit are handled, the processing efficiency of radio frequency signal has effectively been improved, make radio frequency signal receive have fine precision and stability, reduce external signal interference, improve the discernment ability of treater, also can guarantee the real-time validity of communication in the relatively poor environment of radio frequency signal, has good use effect.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to an electronic communication system.
Background
The radio frequency technology is applied to industry and daily life in the field of wireless communication, greatly facilitates work and life of people, and has wide and irreplaceable functions. In the application process of the radio frequency electronic circuit in the communication system, due to the difference of the strength of the radio frequency communication signals, the radio frequency electronic circuit is easily interfered by external signals in the environment with poor communication signals, so that the stability and reliability of communication cannot be ensured, thereby bringing system delay and errors and influencing the use effect of radio frequency communication.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, an object of the present invention is to provide an electronic communication system to overcome the drawbacks of the prior art.
The technical scheme for solving the problem is as follows: an electronic communication system comprises a processor and a wireless receiver for receiving radio frequency signals, wherein output signals of the wireless receiver are processed by an isolation circuit, a feedback regulation circuit and a filter circuit in sequence and then are sent to the processor; the feedback regulating circuit comprises operational amplifiers U2 and U3, the operational amplifiers U2 and U3 adopt a series connection mode to quickly amplify output signals of the isolation circuit, and meanwhile, the operational amplifier process is compensated by using a negative feedback principle.
Further, the isolation circuit comprises an operational amplifier U1, a non-inverting input terminal of the operational amplifier U1 is connected to the output terminal of the wireless receiver and is grounded through a resistor R1, and an inverting input terminal of the operational amplifier U1 is connected to the output terminal of the operational amplifier U1 through a capacitor C1.
Further, the feedback regulation circuit further comprises a resistor R2, one end of the resistor R2 is connected to the output end of the operational amplifier U1, the other end of the resistor R2 is connected to one ends of the capacitors C2, C3 and the resistor R4, the other end of the capacitor C2 is connected to one ends of the resistors R3 and R5 and the output end of the operational amplifier U2, the other end of the capacitor C3 is connected to the other end of the resistor R3 and the inverting input end of the operational amplifier U2, the other end of the resistor R4 is grounded, the output end of the operational amplifier U2 is connected to the non-inverting input end of the operational amplifier U3, the inverting input end of the operational amplifier U3 is connected to the output end of the operational amplifier U9 and the non-inverting input end of the operational amplifier U2 through the resistor R6, and the other end of the resistor R.
Furthermore, the filter circuit comprises a resistor R8 and a capacitor C4, one end of the resistor R8 and one end of the capacitor C4 are connected with the other end of the resistor R5, the other ends of the resistor R8 and the capacitor C4 are connected with the signal input end of the processor and one end of the capacitor C5 through an inductor L1, and the other end of the capacitor C5 is grounded.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the wireless receiver firstly sends the received radio frequency signal into an isolation circuit for processing, and the operational amplifier U1 carries out isolation processing on the output signal of the wireless receiver by using the voltage follower principle, so that the stability of the radio frequency signal output is ensured;
2. the feedback adjusting circuit effectively filters external interference signals by utilizing a band-pass filter network principle, so that the accuracy of radio frequency signals is improved, the composite amplifier is adopted to quickly amplify output signals of the isolating circuit, the signal processing efficiency is improved, and the closed-loop feedback adjustment is utilized to effectively reduce system errors;
3. the filter circuit forms further filtering by utilizing an LC filtering principle, effectively eliminates circuit self-generated interference in the process of receiving radio frequency signals, and greatly improves the identification capability of the processor.
Drawings
Fig. 1 is a schematic circuit diagram of the wireless communication unit of the present invention.
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.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
An electronic communication system comprises a processor and a wireless receiver for receiving radio frequency signals, wherein output signals of the wireless receiver are processed by an isolation circuit, a feedback regulation circuit and a filter circuit in sequence and then are sent to the processor. The feedback regulating circuit comprises operational amplifiers U2 and U3, the operational amplifiers U2 and U3 adopt a series connection mode to quickly amplify output signals of the isolation circuit, and meanwhile, the operational amplifier process is compensated by using a negative feedback principle.
The wireless receiver firstly sends a received radio frequency signal into an isolation circuit for processing, the isolation circuit comprises an operational amplifier U1, the non-inverting input end of the operational amplifier U1 is connected with the output end of the wireless receiver and is grounded through a resistor R1, and the inverting input end of the operational amplifier U1 is connected with the output end of the operational amplifier U1 through a capacitor C1. The operational amplifier U1 isolates the output signal of the wireless receiver by using the voltage follower principle, thereby ensuring the stability of the output of the radio frequency signal, and the capacitor C1 plays a role in signal compensation and ensures the continuity of the output of the radio frequency signal.
The feedback regulation circuit further comprises a resistor R2, one end of the resistor R2 is connected with the output end of the operational amplifier U1, the other end of the resistor R2 is connected with one ends of the capacitors C2, C3 and the resistor R4, the other end of the capacitor C2 is connected with one ends of the resistors R3 and R5 and the output end of the operational amplifier U2, the other end of the capacitor C3 is connected with the other end of the resistor R3 and the inverting input end of the operational amplifier U2, the other end of the resistor R4 is grounded, the output end of the operational amplifier U2 is connected with the non-inverting input end of the operational amplifier U3, the inverting input end of the operational amplifier U3 is connected with the output end of the operational amplifier U3 and the non-inverting input end of the operational amplifier U2 through a resistor R6, and the other end.
The resistors R2 and R3 and the capacitors C2 and C3 form a band-pass filter network to process the output signal of the operational amplifier U1, so that external interference signals are effectively filtered, and the accuracy of radio frequency signals is improved. In order to improve the processing efficiency of radio frequency signals, the operational amplifiers U2 and U3 in the feedback adjusting circuit form a composite amplifier to quickly amplify the output signals of the isolation circuit, so that the signal processing efficiency is improved, and meanwhile, the resistor R7 performs closed-loop feedback on the output signals of the composite amplifier, so that the system error is effectively reduced.
The filter circuit comprises a resistor R8 and a capacitor C4, one end of the resistor R8 and one end of the capacitor C4 are connected with the other end of the resistor R5, the other ends of the resistor R8 and the capacitor C4 are connected with a signal input end of the processor and one end of the capacitor C5 through an inductor L1, and the other end of the capacitor C5 is grounded. After an output signal of the feedback adjusting circuit is filtered by an RC formed by a capacitor C4 and a capacitor R8, the inductor L1 and the capacitor C5 form further filtering by utilizing an LC filtering principle, circuit self-generated interference in the radio frequency signal receiving process is effectively eliminated, and the identification capability of the processor is greatly improved.
The utility model discloses when specifically using, wireless receiver loops through isolating circuit, feedback regulating circuit and filter circuit with received radio frequency signal and handles, has effectively improved radio frequency signal's treatment effeciency, makes radio frequency signal receive and has fine precision and stability, reduces external signal and disturbs, improves the discernment ability of treater, also can guarantee the real-time validity of communication in the relatively poor environment of radio frequency signal, has fine result of use.
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 (4)
1. An electronic communication system comprising a processor and a wireless receiver for receiving radio frequency signals, characterized in that: the output signal of the wireless receiver is processed by the isolation circuit, the feedback regulation circuit and the filter circuit in sequence and then is sent to the processor; the feedback regulating circuit comprises operational amplifiers U2 and U3, the operational amplifiers U2 and U3 adopt a series connection mode to quickly amplify output signals of the isolation circuit, and meanwhile, the operational amplifier process is compensated by using a negative feedback principle.
2. The electronic communication system of claim 1, wherein: the isolation circuit comprises an operational amplifier U1, the non-inverting input terminal of the operational amplifier U1 is connected with the output terminal of the wireless receiver and is grounded through a resistor R1, and the inverting input terminal of the operational amplifier U1 is connected with the output terminal of the operational amplifier U1 through a capacitor C1.
3. The electronic communication system of claim 2, wherein: the feedback adjusting circuit further comprises a resistor R2, one end of the resistor R2 is connected with the output end of the operational amplifier U1, the other end of the resistor R2 is connected with one ends of the capacitors C2, C3 and the resistor R4, the other end of the capacitor C2 is connected with one ends of the resistors R3 and R5 and the output end of the operational amplifier U2, the other end of the capacitor C3 is connected with the other end of the resistor R3 and the inverting input end of the operational amplifier U2, the other end of the resistor R4 is grounded, the output end of the operational amplifier U2 is connected with the non-inverting input end of the operational amplifier U3, the inverting input end of the operational amplifier U3 is connected with the output end of the operational amplifier U3 and the non-inverting input end of the operational amplifier U2 through the resistor R6, and the other end of.
4. The electronic communication system of claim 3, wherein: the filter circuit comprises a resistor R8 and a capacitor C4, one end of the resistor R8 and one end of the capacitor C4 are connected with the other end of the resistor R5, the other ends of the resistor R8 and the capacitor C4 are connected with a signal input end of the processor and one end of the capacitor C5 through an inductor L1, and the other end of the capacitor C5 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473593.4U CN210469299U (en) | 2019-12-31 | 2019-12-31 | Electronic communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922473593.4U CN210469299U (en) | 2019-12-31 | 2019-12-31 | Electronic communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210469299U true CN210469299U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922473593.4U Expired - Fee Related CN210469299U (en) | 2019-12-31 | 2019-12-31 | Electronic communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210469299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801465A (en) * | 2022-01-08 | 2022-07-29 | 河南宝钢制罐有限公司 | Printing quality control system for pop-top can |
-
2019
- 2019-12-31 CN CN201922473593.4U patent/CN210469299U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801465A (en) * | 2022-01-08 | 2022-07-29 | 河南宝钢制罐有限公司 | Printing quality control system for pop-top can |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200505 Termination date: 20211231 |