CN216670719U - Remote communication receiving circuit - Google Patents
Remote communication receiving circuit Download PDFInfo
- Publication number
- CN216670719U CN216670719U CN202220195934.5U CN202220195934U CN216670719U CN 216670719 U CN216670719 U CN 216670719U CN 202220195934 U CN202220195934 U CN 202220195934U CN 216670719 U CN216670719 U CN 216670719U
- Authority
- CN
- China
- Prior art keywords
- module
- signal
- capacitor
- receiving circuit
- inductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 11
- 239000013078 crystal Substances 0.000 claims abstract description 25
- 230000003321 amplification Effects 0.000 claims abstract description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims description 55
- 230000009977 dual effect Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 101100478969 Oryza sativa subsp. japonica SUS2 gene Proteins 0.000 description 1
- 101100004663 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) BRR2 gene Proteins 0.000 description 1
- 101100504519 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) GLE1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Optical Communication System (AREA)
Abstract
The utility model discloses a remote communication receiving circuit, which comprises a conversion module, a receiving module and a control module, wherein the conversion module is used for receiving optical signals and then converting the optical signals into electric signals; the low-pass module is used for filtering a part of the electric signal, which is lower than a threshold frequency; the amplifying module is used for amplifying the filtered electric signal; the high-pass module is used for filtering out a part of the electric signal, which is higher than a threshold frequency; the frequency mixing module is used for performing frequency mixing and demodulation on the electric signal and the crystal oscillator signal generated by the local oscillator module and then outputting a processing signal; and the comparison and amplification module is used for comparing the signal voltage of the processing signal with the reference voltage, and amplifying the processing signal and outputting the data signal when the signal voltage of the processing signal is higher than the reference voltage. The utility model designs a remote communication receiving circuit, reasonably selects the working mode, can normally receive FSK when the received signal is very weak, and has the advantages of long control distance, low equipment power consumption, good practicability, strong interference and the like.
Description
Technical Field
The utility model relates to the technical field of bus control, in particular to a remote communication receiving circuit.
Background
With the development of information technology, especially in the field of bus control technology, it is required to implement a field bus control technology with long distance, low power consumption and strong real-time performance, and in the prior art, the problem that the precision of parts is high and the parts are expensive exists when optical signals are processed into electrical signals meeting the requirements, so that the existing bus control technology needs to be improved, and a bus communication circuit with low cost and high precision can be obtained.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a remote communication receiving circuit.
In order to realize the purpose, the following technical scheme is adopted:
the utility model provides a remote communication receiving circuit, is including the conversion module, low pass module, the amplification module, high pass module, the mixing module that connect gradually, the mixing module still is connected with local oscillator module, comparison amplification module respectively, wherein:
the conversion module is used for receiving the optical signal and then converting the optical signal into an electrical signal;
the low-pass module is used for filtering out a part of the electric signal, which is lower than a threshold frequency;
the amplifying module is used for amplifying the filtered electric signal;
the high-pass module is used for filtering out a part of the electric signal, which is higher than the threshold frequency;
the frequency mixing module is used for performing frequency mixing and demodulation on the electric signal and the crystal oscillator signal generated by the local oscillator module and then outputting a processing signal;
the comparison and amplification module is used for comparing the signal voltage of the processing signal with a reference voltage, and when the signal voltage of the processing signal is higher than the reference voltage, the comparison and amplification module amplifies the processing signal and outputs a data signal.
Further, the conversion module includes a photoelectric cell, and the photoelectric cell is used for converting the optical signal into an electrical signal.
Further, the low-pass module comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first inductor, a second inductor, and a third inductor, wherein one end of the first capacitor is connected with the output end of the conversion module, the other end of the first capacitor is respectively connected with one end of the first inductor and one end of the second capacitor, the other end of the second capacitor is grounded, the other end of the first inductor is respectively connected with one end of the third capacitor and one end of the fourth capacitor, the other end of the third capacitor is grounded, the other end of the fourth capacitor is respectively connected with one end of the fifth capacitor and one end of the second inductor, the other end of the second inductor is grounded, and the other end of the fifth capacitor is connected to a series circuit formed by the sixth capacitor and the third inductor and connected to the input end of the amplifying module.
Further, the amplifying module includes a first triode, and the first triode is used for amplifying the electric signal.
Further, the local oscillation module includes a crystal oscillator, and the crystal oscillator is configured to generate the crystal oscillator signal.
Furthermore, the local oscillator module further includes a second triode, and the second triode is used for amplifying the crystal oscillator signal generated by the crystal oscillator.
Further, the frequency mixing module comprises a frequency mixing chip.
Further, the comparing and amplifying module includes a two-way differential comparator.
By adopting the scheme, the utility model has the beneficial effects that:
the utility model designs a remote communication receiving circuit, reasonably selects the working mode, can normally receive FSK when the received signal is very weak, and has the advantages of long control distance, low equipment power consumption, good practicability, strong interference and the like.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
FIG. 2 is a circuit schematic of the conversion module of the present invention;
FIG. 3 is a schematic circuit diagram of the low pass module, the amplification module, and the high pass module of the present invention;
FIG. 4 is a schematic circuit diagram of a frequency mixing module and a local oscillation module according to the present invention;
fig. 5 is a schematic circuit diagram of the comparison amplification module of the present invention.
Detailed Description
The utility model is described in detail below with reference to the figures and the specific embodiments.
Referring to fig. 1, the present invention provides a remote communication receiving circuit, which includes a conversion module 1, a low-pass module 2, an amplification module 3, a high-pass module 4, and a frequency mixing module 5, which are connected in sequence, where the frequency mixing module 5 is further connected to a local oscillation module 6 and a comparison amplification module 73, respectively, where:
the conversion module 1 is used for receiving the optical signal and then converting the optical signal into an electrical signal;
the low-pass module 2 is used for filtering a part of the electric signal, which is lower than a threshold frequency;
the amplifying module 3 is used for amplifying the filtered electric signals;
the high-pass module 4 is used for filtering out the part of the electric signal, which is higher than the threshold frequency;
the frequency mixing module 5 is used for performing frequency mixing and demodulation on the electric signal and the crystal oscillator signal generated by the local oscillator module 6 and then outputting a processed signal;
and the comparison amplification module 73 is used for comparing the signal voltage of the processing signal with the reference voltage, and when the signal voltage of the processing signal is higher than the reference voltage, the comparison amplification module 73 amplifies the processing signal and outputs a data signal.
In one embodiment, as shown in fig. 2, the conversion module 1 includes a photo-electric cell U13, and the photo-electric cell U13 is used for converting an optical signal into an electrical signal, and outputting the electrical signal to the low-pass module 2 after passing through a capacitor C63.
In one embodiment, as shown in fig. 3, the low pass module 2 includes a first capacitor C31C31, a second capacitor C26, a third capacitor C23, a fourth capacitor C21, a fifth capacitor C17, a sixth capacitor C19, a first inductor L9, a second inductor L8, and a third inductor L7, one end of the first capacitor C31 is connected to the output end of the conversion module 1, the other end of the first capacitor C31 is connected to one ends of the first inductor L9 and the second capacitor C26, the other end of the second capacitor C26 is grounded, the other end of the first inductor L9 is connected to one ends of the third capacitor C23 and the fourth capacitor C21, the other end of the third capacitor C23 is grounded, the other end of the fourth capacitor C21 is connected to one ends of the fifth capacitor C17 and the second inductor L8, the other end of the second inductor L8 is grounded, and the other end of the fifth capacitor C17 is connected to a series circuit formed by the sixth capacitor C19 and the third inductor L7 and to the input end of the amplification module 3.
Wherein, after the electric signal is used through the composition of the capacitor and the inductor, the electric signal with the frequency lower than the threshold value is filtered.
In one embodiment, as shown in fig. 3, the amplifying module 3 includes a first transistor Q2, and the first transistor Q2 is used for amplifying the electrical signal. The signal after frequency comparison can also be received by the circuit after amplification processing.
In one embodiment, as shown in fig. 3, the high-pass module 4 includes capacitors C4, C9, C14, C13, C6, and inductors L3, L4, and L5, and after the electric signal passes through the capacitors C4, C9, C14, C13, C6 and the inductors L3, L4, and L5, a part higher than a threshold frequency is filtered out.
In one embodiment, as shown in fig. 4, the local oscillation module 6 includes a crystal oscillator Y1, and the crystal oscillator Y1 is configured to generate a crystal oscillator signal.
The crystal oscillator Y1 may be a component for generating a crystal oscillator signal with a frequency of 64.8 MHz.
As shown in fig. 4, the local oscillation module 6 further includes a second transistor Q1, and the second transistor Q1 is configured to amplify the crystal oscillator signal generated by the crystal oscillator Y1.
In order to sufficiently drive the mixer, a second triode Q1 is added to the output of the crystal oscillator Y1, so that the crystal oscillator signal is amplified.
In one embodiment, as shown in fig. 4, the mixing module 5 includes a mixing chip U1.
The specific model of the mixing chip U1 may be SA 636.
In one embodiment, as shown in fig. 5, the compare and amplify module 73 includes a two-way differential comparator U2.
Additionally, the two-way differential comparator U2 is also connected to a third transistor Q3, and the third transistor Q3 is used to divert the data signal to better accommodate the next processing step.
The working principle of the utility model is as follows: the utility model takes the 70.5MHz frequency of the transmitting signal as an example, and combines with the figures 1-5, and introduces the working flow specifically, wherein, the transmitting signal 70.5MHz frequency is mixed in the central control system signal, the optical signal is converted into the electric signal by the photoelectric tube U13, the signal before 70.5MHz is filtered by the low pass module 2, the signal is amplified by the first triode Q2 to 20DB, in order to normally receive the 70.5MHz signal when the FSK is very weak, the signal above 70.5MHz is filtered by the high pass module 4 to reduce the interference of other frequencies to 70.5MHz, in the local oscillator of the demodulation chip, namely the local oscillator module, the crystal oscillator Y1 is 64.8MHz, the recommended input level of the external oscillator can be 95dB to 115dBuV, to fully drive the mixing chip U1, so the second triode Q1 amplifies the crystal oscillator signal, in the mixing module 5, the FL1 and the FL2 connected with the mixing chip U1 are the intermediate frequency filter, the filtering frequency is 180KHz, the center frequency of an intermediate frequency input signal is 10.7MHz, the maximum frequency modulation deviation is +5kHz, the frequency range of a frequency modulation demodulation signal is 10.695-10.705 MHz, in the comparison amplification module 7, when the voltage of a signal demodulated by a processing signal RSS1 is smaller and is more complicated, the output end of the two-way differential comparator U2 is in a closed state, and when the voltage of the 5 th pin is higher than that of the 6 th pin, the output end of the two-way differential comparator U2 outputs.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a remote communication receiving circuit which characterized in that, is including the conversion module, low pass module, the amplification module, high pass module, the mixing module that connect gradually, the mixing module still is connected with local oscillator module, comparison amplification module respectively, wherein:
the conversion module is used for receiving the optical signal and then converting the optical signal into an electrical signal;
the low-pass module is used for filtering a part of the electric signal, which is lower than a threshold frequency;
the amplifying module is used for amplifying the filtered electric signal;
the high-pass module is used for filtering out a part of the electric signal, which is higher than the threshold frequency;
the frequency mixing module is used for performing frequency mixing and demodulation on the electric signal and the crystal oscillator signal generated by the local oscillator module and then outputting a processing signal;
the comparison and amplification module is used for comparing the signal voltage of the processing signal with a reference voltage, and when the signal voltage of the processing signal is higher than the reference voltage, the comparison and amplification module amplifies the processing signal and outputs a data signal.
2. A telecommunications receiving circuit according to claim 1, wherein the conversion module comprises a photocell for converting the optical signal into an electrical signal.
3. The telecommunication receiving circuit according to claim 1, wherein said low-pass module comprises a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first inductor, a second inductor, and a third inductor, wherein one end of said first capacitor is connected to an output terminal of said conversion module, the other end of said first capacitor is connected to one end of said first inductor and one end of said second capacitor, respectively, the other end of said second capacitor is grounded, the other end of said first inductor is connected to one end of said third capacitor and one end of said fourth capacitor, respectively, the other end of said third capacitor is grounded, the other end of said fourth capacitor is connected to one end of said fifth capacitor and one end of said second inductor, the other end of said second inductor is grounded, the other end of said fifth capacitor is connected to a series circuit consisting of said sixth capacitor and said third inductor, and the input end of the amplifying module is connected.
4. The telecommunications receiving circuit of claim 1, wherein the amplification module comprises a first transistor configured to amplify the electrical signal.
5. The telecommunications receiving circuit of claim 1, wherein the local oscillator module comprises a crystal oscillator, and the crystal oscillator is configured to generate the crystal oscillator signal.
6. The telecommunications receiving circuit of claim 5, wherein the local oscillator module further comprises a second transistor, and the second transistor is configured to amplify the crystal oscillator signal generated by the crystal oscillator.
7. The telecommunications receiving circuit of claim 1, wherein the mixing module comprises a mixing chip.
8. The telecommunication receiving circuit according to claim 1, wherein said comparing and amplifying module comprises a dual differential comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220195934.5U CN216670719U (en) | 2022-01-24 | 2022-01-24 | Remote communication receiving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220195934.5U CN216670719U (en) | 2022-01-24 | 2022-01-24 | Remote communication receiving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216670719U true CN216670719U (en) | 2022-06-03 |
Family
ID=81763967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220195934.5U Active CN216670719U (en) | 2022-01-24 | 2022-01-24 | Remote communication receiving circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216670719U (en) |
-
2022
- 2022-01-24 CN CN202220195934.5U patent/CN216670719U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1977473B (en) | Transimpedance amplifier with integrated filtering and reduced parasitic capacitance | |
| CN103078593B (en) | Lower-power-supply-voltage high-conversion-gain passive mixer | |
| US10992327B2 (en) | Wireless radio frequency communication system | |
| CN201878140U (en) | Low-voltage power line carrier communication module | |
| CN216670719U (en) | Remote communication receiving circuit | |
| CN212275960U (en) | Signal disturbance extraction circuit and radio frequency receiver | |
| CN115102570B (en) | Intermediate frequency analog circuit, analog baseband circuit, and radio signal transmitting/receiving device | |
| CN109728829B (en) | High-performance broadband radio frequency receiving module | |
| CN106788608A (en) | A kind of power-line carrier communication system | |
| CN111245465A (en) | Compact millimeter wave receiving and transmitting front-end device | |
| CN205793381U (en) | A kind of receiver and improve the circuit of the up obstruction of radio communication base station | |
| CN210899143U (en) | Transceiver circuit of interphone | |
| CN210157212U (en) | Amplitude modulation signal processing experimental circuit | |
| CN209767501U (en) | Frequency spectrum conversion device based on multiple multipliers | |
| CN214756257U (en) | Low-noise amplifier module | |
| CN213279632U (en) | PCIE-based 950MHz-2750MHz receiver | |
| CN216056944U (en) | Low-noise amplifying circuit | |
| CN209748551U (en) | Full frequency channel terminal acquisition device | |
| CN203788272U (en) | RM100 receiver front-end assembly module | |
| EP3404857A1 (en) | Infrared receiver and infrared simultaneous interpretation system | |
| CN218276701U (en) | Communication device based on carrier wave and wireless | |
| CN220896660U (en) | High-harmonic suppression amplifier | |
| CN212875798U (en) | Community warehouse security system | |
| CN219642253U (en) | Remote identification card recognition device based on RC531 | |
| CN217240681U (en) | High-speed differential signal demodulation circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231107 Address after: 518000 building b1501, Shangrong industrial plant, No. 2, Baolong fifth road, Baolong community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN WANHE TECHNOLOGY CO.,LTD. Address before: 518000 workshop b1301 of Shangrong industrial plant, No. 2, Baolong fifth road, Baolong community, Baolong street, Longgang District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Pinxin Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |