CN212381116U - Wireless signal adjusting circuit for water environment monitoring - Google Patents
Wireless signal adjusting circuit for water environment monitoring Download PDFInfo
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- CN212381116U CN212381116U CN202021366220.3U CN202021366220U CN212381116U CN 212381116 U CN212381116 U CN 212381116U CN 202021366220 U CN202021366220 U CN 202021366220U CN 212381116 U CN212381116 U CN 212381116U
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Abstract
The utility model discloses a wireless signal regulating circuit for water environment monitoring, include: the system comprises a jitter elimination triggering unit, a surge buffer unit, a level conversion unit, a signal filtering unit and a signal amplifying unit, wherein the jitter elimination triggering unit eliminates jitter generated when the input power supply is controlled to be on and off; the surge buffer unit limits the instantaneous overvoltage of the signal transmission line within the voltage range which can be borne by equipment and operating devices; the output of voltage is controlled by the on-off of a triode Q2 in the level conversion unit, so that safe voltage is provided for a next-stage module; a capacitor C4 and a capacitor C5 in the signal filtering unit form a filtering circuit; the signal amplifying module amplifies the signal adjusted by the signal filtering unit, so that the transmission range of the signal is enlarged; the utility model discloses a adjust power and signal to improve signal operation and signal transmission quality, reduce signal interference.
Description
Technical Field
The utility model relates to a, especially a wireless signal regulating circuit for water environment monitoring.
Background
With the continuous improvement of the economic level of China and the continuous acceleration of urbanization construction, the requirements of people on the living standard and the living quality are higher and higher, the detection of the water quality environment has important significance on the monitoring of the quality of domestic water and other water and the life health and safety of people, and currently, the water quality environment is required to be monitored constantly to obtain water quality data because the stability of the water quality environment of China is damaged and the water environment has quality problems due to the industrial development of China.
The existing water environment monitoring circuit cannot eliminate the generated jitter when the input power supply is controlled to be on and off, so that the service life of internal components is shortened, the conversion quality of voltage is reduced, and the stability of a power supply of a signal regulating circuit is influenced; the overvoltage generated in a circuit cannot be limited during signal transmission, so that voltage impact is caused to damage internal devices, and an operational amplifier cannot be started instantly during amplification transmission of a received detection signal, so that signal delay response is caused.
Therefore, in light of the above problems, a wireless signal conditioning circuit for water environment monitoring is designed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the wireless signal adjusting circuit for monitoring the water environment is provided to solve the problems in the prior art.
The technical scheme is as follows: a wireless signal conditioning circuit for water environment monitoring, comprising: the system comprises a jitter elimination triggering unit, a surge buffer unit, a level conversion unit, a signal filtering unit and a signal amplifying unit, wherein the jitter elimination triggering unit eliminates jitter generated when the input power supply is controlled to be on and off; the capacitor C2 is grounded to eliminate the interference frequency band generated when the trigger U3 operates; the surge buffer unit limits the instantaneous overvoltage of the signal transmission line within the voltage range which can be borne by equipment and operating devices, protects components and output voltage from being damaged by impact, and the inductor L1 is used for stabilizing the transmission of current; the output of voltage is controlled by the on-off of a triode Q2 in the level conversion unit, so that safe voltage is provided for a next-stage module; the capacitor C4 and the capacitor C5 in the signal filtering unit form a filtering circuit, the capacitor C4 is used for reducing ripples, and the capacitor C5 is used for filtering clutter of high frequency; the signal amplification module amplifies the signal regulated by the signal filtering unit, so that the transmission range of the signal is increased, and the capacitor C6 is used for providing a storage power supply for the operational amplifier U2, so that the operational response is improved; the utility model discloses a adjust power and signal to improve signal operation and signal transmission quality, reduce signal interference.
IN a further embodiment, the anti-jitter trigger unit comprises a diode D1, a diode D2, a resistor R1, a trigger U3, a capacitor C1, a capacitor C2 and a resistor R2, wherein the negative terminal of the diode D2 is connected to the input port IN and the negative terminal of the diode D1 respectively; the positive end of the diode D2 is respectively connected with the positive end of the diode D1, one end of the resistor R1 and a pin 4 of the trigger U3; the other end of the resistor R1 is respectively connected with an input power supply +24V and a trigger U3 pin 8; one end of the resistor R2 is respectively connected with the pin 7 and the pin 6 of the trigger U3 and one end of the capacitor C2; the other end of the resistor R2 is connected with a ground wire GND; the other end of the capacitor C2 is respectively connected with a pin 1 of a trigger U3, one end of a capacitor C1 and a ground wire GND; the other end of the capacitor C1 is connected with pin 2 of the trigger U3.
In a further embodiment, the surge buffering unit comprises an inductor L1, a capacitor C8, a transistor Q1, a diode D4, a diode D3, a capacitor C3, and a resistor R3, wherein one end of the inductor L1 is connected to a base terminal of the transistor Q1, one end of the capacitor C8, the other end of the resistor R1, an input power supply +24V, a pin 8 of a flip-flop U3, and a pin 3; the other end of the inductor L1 is respectively connected with a collector terminal of a triode Q1 and one end of a capacitor C3; the emitter terminal of the triode Q1 is respectively connected with the cathode terminal of the diode D4 and the cathode terminal of the diode D3; the other end of the capacitor C3 is respectively connected with the positive end of a diode D3 and one end of a resistor R3; the other end of the resistor R3 is connected with the positive end of the diode D4, the other end of the capacitor C8, the negative end of the diode D2, the input port IN and the negative end of the diode D1 respectively.
In a further embodiment, the level shift unit includes a resistor R8, a transistor Q2, and a resistor R9, wherein one end of the resistor R8 is connected to the emitter terminal of the diode Q1, the cathode terminal of the diode D4, and the cathode terminal of the diode D3, respectively; the other end of the resistor R8 is connected with the base terminal of a triode Q2; the collector terminal of the triode Q2 is respectively connected with one end of an inductor L1, the base terminal of a triode Q1, one end of a capacitor C8, the other end of a resistor R1, an input power supply +24V, a pin 8 of a trigger U3 and a pin 3; the emitter terminal of the triode Q2 is connected with one end of a resistor R9; the other end of the resistor R9 is connected with the ground line GND.
IN a further embodiment, the signal filtering unit includes a resistor R4, a resistor R5, a capacitor C4, a capacitor C5, a resistor R7, an operational amplifier U1, and a resistor R6, wherein one end of the resistor R4 is connected to the other end of the resistor R3, the positive terminal of the diode D4, the other end of the capacitor C8, the negative terminal of the diode D2, the input port IN, and the negative terminal of the diode D1, respectively; the other end of the resistor R4 is respectively connected with one end of a resistor R5 and the negative end of a capacitor C4; the positive end of the capacitor C4 is respectively connected with the negative end of the capacitor C5 and the ground wire GND; the other end of the resistor R5 is respectively connected with the positive end of the capacitor C5 and the pin 3 of the operational amplifier U1; the pin 2 of the operational amplifier U1 is respectively connected with one end of a resistor R6 and one end of a resistor R7; the other end of the resistor R6 is respectively connected with a pin 4 of an operational amplifier U1 and a ground wire GND; the other end of the resistor R7 is connected with a pin 6 of an operational amplifier U1; and the pin 7 of the operational amplifier U1 is respectively connected with the emitter terminal of the triode Q2 and one end of the resistor R9.
In a further embodiment, the signal amplifying unit comprises a resistor R11, a resistor R12, a resistor R10, a capacitor C7, an operational amplifier U2 and a capacitor C6, wherein one end of the resistor R11 is connected to the other end of the resistor R7 and the pin 6 of the operational amplifier U1 respectively; the other end of the resistor R11 is respectively connected with the positive end of the capacitor C6, one end of the resistor R10, one end of the resistor R12 and the pin 3 of the operational amplifier U2; the pin 7 of the operational amplifier U2 is respectively connected with the pin 7 of an operational amplifier U1, an emitter terminal of a triode Q2 and one end of a resistor R9; the pin 2 of the operational amplifier U2 is respectively connected with the other end of the resistor R6, the pin 4 of the operational amplifier U1 and the ground wire GND; the pin 4 of the operational amplifier U2 is respectively connected with the negative end of the capacitor C7 and the ground wire GND; the positive end of the capacitor C7 is connected with the other end of the resistor R12; and the negative end of the capacitor C6 is respectively connected with the other end of the resistor R10, the pin 6 of the operational amplifier U2 and the output end OUT.
In a further embodiment, the diode D3 and the diode D4 are both zener diodes; the model of the triode Q1 and the model of the triode Q2 are both NPN; the capacitor C4, the capacitor C5, the capacitor C6 and the capacitor C7 are electrolytic capacitors; the trigger U3 is model 555.
Has the advantages that: the utility model designs a wireless signal adjusting circuit for monitoring water environment, which can not eliminate the generated jitter when the on-off control of the input power supply is carried out, the jitter generated in the on-off of the power supply is eliminated by designing the jitter elimination trigger unit, so that the backflow phenomenon is prevented when the power supply is disconnected, further reducing the damage to the internal components, eliminating the interference wave band generated in the operation of the trigger U3 by grounding the capacitor C2, thereby improving the conversion quality of the voltage and the stability of the signal adjusting power supply, and the overvoltage generated in the circuit can not be limited during the signal transmission, further causing voltage impact to damage internal devices, so that instantaneous overvoltage generated by a signal transmission line is limited within a range which can be borne by equipment and operating devices by arranging a surge buffer unit at the next stage of the jitter elimination trigger unit, and further components and vinegar huhu voltage are protected from being damaged by impact voltage; the operational amplifier cannot be started instantly when a received detection signal is amplified and transmitted, and the capacitor C6 is used for a power supply storage component in the signal amplification module, so that the transmitted voltage is stored, and further, a starting operation voltage is provided for the operational amplifier U2, so that the response speed of signal transmission is increased, and further, the signal delay response is reduced.
Drawings
Fig. 1 is a circuit diagram of the module of the present invention.
Fig. 2 is a circuit diagram of the jitter elimination trigger unit of the present invention.
Fig. 3 is a circuit diagram of the surge buffering unit of the present invention.
Fig. 4 is a circuit diagram of the level shift unit of the present invention.
Fig. 5 is a circuit diagram of the signal filtering unit of the present invention.
Fig. 6 is a circuit diagram of the signal amplification unit of the present invention.
Detailed Description
Referring to fig. 1 to 6, a wireless signal conditioning circuit for water environment monitoring includes: the jitter elimination trigger unit comprises a diode D1, a diode D2, a resistor R1, a trigger U3, a capacitor C1, a capacitor C2 and a resistor R2.
The surge buffering unit comprises an inductor L1, a capacitor C8, a triode Q1, a diode D4, a diode D3, a capacitor C3 and a resistor R3.
The level conversion unit comprises a resistor R8, a triode Q2 and a resistor R9.
The signal filtering unit comprises a resistor R4, a resistor R5, a capacitor C4, a capacitor C5, a resistor R7, an operational amplifier U1 and a resistor R6.
The signal amplification unit comprises a resistor R11, a resistor R12, a resistor R10, a capacitor C7, an operational amplifier U2 and a capacitor C6.
The cathode end of the diode D2 IN the jitter elimination trigger unit is respectively connected with the input port IN and the cathode end of the diode D1; the positive end of the diode D2 is respectively connected with the positive end of the diode D1, one end of the resistor R1 and a pin 4 of the trigger U3; the other end of the resistor R1 is respectively connected with an input power supply +24V and a trigger U3 pin 8; one end of the resistor R2 is respectively connected with the pin 7 and the pin 6 of the trigger U3 and one end of the capacitor C2; the other end of the resistor R2 is connected with a ground wire GND; the other end of the capacitor C2 is respectively connected with a pin 1 of a trigger U3, one end of a capacitor C1 and a ground wire GND; the other end of the capacitor C1 is connected with pin 2 of the trigger U3.
One end of an inductor L1 in the surge buffering unit is respectively connected with a base electrode end of a triode Q1, one end of a capacitor C8, the other end of a resistor R1, an input power supply +24V, a pin 8 of a trigger U3 and a pin 3; the other end of the inductor L1 is respectively connected with a collector terminal of a triode Q1 and one end of a capacitor C3; the emitter terminal of the triode Q1 is respectively connected with the cathode terminal of the diode D4 and the cathode terminal of the diode D3; the other end of the capacitor C3 is respectively connected with the positive end of a diode D3 and one end of a resistor R3; the other end of the resistor R3 is connected with the positive end of the diode D4, the other end of the capacitor C8, the negative end of the diode D2, the input port IN and the negative end of the diode D1 respectively.
One end of the resistor R8 in the level conversion unit is respectively connected with the emitter terminal of the diode Q1, the cathode terminal of the diode D4 and the cathode terminal of the diode D3; the other end of the resistor R8 is connected with the base terminal of a triode Q2; the collector terminal of the triode Q2 is respectively connected with one end of an inductor L1, the base terminal of a triode Q1, one end of a capacitor C8, the other end of a resistor R1, an input power supply +24V, a pin 8 of a trigger U3 and a pin 3; the emitter terminal of the triode Q2 is connected with one end of a resistor R9; the other end of the resistor R9 is connected with the ground line GND.
One end of the resistor R4 IN the signal filtering unit is respectively connected with the other end of the resistor R3, the positive end of the diode D4, the other end of the capacitor C8, the negative end of the diode D2, the input port IN and the negative end of the diode D1; the other end of the resistor R4 is respectively connected with one end of a resistor R5 and the negative end of a capacitor C4; the positive end of the capacitor C4 is respectively connected with the negative end of the capacitor C5 and the ground wire GND; the other end of the resistor R5 is respectively connected with the positive end of the capacitor C5 and the pin 3 of the operational amplifier U1; the pin 2 of the operational amplifier U1 is respectively connected with one end of a resistor R6 and one end of a resistor R7; the other end of the resistor R6 is respectively connected with a pin 4 of an operational amplifier U1 and a ground wire GND; the other end of the resistor R7 is connected with a pin 6 of an operational amplifier U1; and the pin 7 of the operational amplifier U1 is respectively connected with the emitter terminal of the triode Q2 and one end of the resistor R9.
One end of the resistor R11 in the signal amplification unit is respectively connected with the other end of the resistor R7 and a pin 6 of an operational amplifier U1; the other end of the resistor R11 is respectively connected with the positive end of the capacitor C6, one end of the resistor R10, one end of the resistor R12 and the pin 3 of the operational amplifier U2; the pin 7 of the operational amplifier U2 is respectively connected with the pin 7 of an operational amplifier U1, an emitter terminal of a triode Q2 and one end of a resistor R9; the pin 2 of the operational amplifier U2 is respectively connected with the other end of the resistor R6, the pin 4 of the operational amplifier U1 and the ground wire GND; the pin 4 of the operational amplifier U2 is respectively connected with the negative end of the capacitor C7 and the ground wire GND; the positive end of the capacitor C7 is connected with the other end of the resistor R12; and the negative end of the capacitor C6 is respectively connected with the other end of the resistor R10, the pin 6 of the operational amplifier U2 and the output end OUT.
The working principle is as follows: the resistor R1 obtains +24V of an input power supply, so that the series voltage division characteristic is adopted, the output voltage value is adjusted to meet the working voltage required by the trigger U3, the diode D2 and the diode D1 limit the transmission direction of the voltage, and the jitter generated by the trigger U3 in the jitter elimination trigger unit is eliminated when the input power supply is controlled to be on and off; then the interference frequency band generated when the trigger U3 operates is eliminated through the grounding of the capacitor C2; the surge buffer unit limits the instantaneous overvoltage of the signal transmission line in a voltage range which can be borne by equipment and operating devices, protects the components and output voltage from being damaged by impact, the inductor L1 is used for stable current transmission, the triode Q1 is used as a non-contact switch and controls the on-off of an electric signal, the capacitor C8 provides stored electric energy, the on-off response speed of the triode Q1 is improved, the output of voltage is controlled by the on-off of the triode Q2 in the level conversion unit, so that safe voltage is provided for the signal filtering unit and the signal amplification unit, and the output voltage of an emitter terminal is adjusted by the change of a base terminal and a collector terminal of the triode Q2; then, a filter circuit is formed by a capacitor C4 and a capacitor C5 in the signal filter unit to filter the input signals, the capacitor C4 is used for reducing ripples, and the capacitor C5 is used for filtering high-frequency noise waves; and the capacitor C6 is used for providing a storage power supply for the operational amplifier U2, so that the operational response is improved, the signal operation and signal transmission quality is improved, and the signal interference is reduced.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (5)
1. A wireless signal conditioning circuit for monitoring water environment, characterized by comprising: the system comprises a jitter elimination triggering unit, a surge buffer unit, a level conversion unit, a signal filtering unit and a signal amplifying unit, wherein the jitter elimination triggering unit eliminates jitter generated when the input power supply is controlled to be on and off; the capacitor C2 is grounded to eliminate the interference frequency band generated when the trigger U3 operates; the surge buffer unit limits the instantaneous overvoltage of the signal transmission line within the voltage range which can be borne by equipment and operating devices, protects components and output voltage from being damaged by impact, and the inductor L1 is used for stabilizing the transmission of current; the output of voltage is controlled by the on-off of a triode Q2 in the level conversion unit, so that safe voltage is provided for a next-stage module; the capacitor C4 and the capacitor C5 in the signal filtering unit form a filtering circuit, the capacitor C4 is used for reducing ripples, and the capacitor C5 is used for filtering clutter of high frequency; the signal amplification module amplifies the signal regulated by the signal filtering unit, so that the transmission range of the signal is increased, and the capacitor C6 is used for providing a storage power supply for the operational amplifier U2, so that the operational response is improved; the anti-jitter trigger unit comprises a diode D1, a diode D2, a resistor R1, a trigger U3, a capacitor C1, a capacitor C2 and a resistor R2, wherein the negative end of the diode D2 is connected with the input port IN and the negative end of the diode D1 respectively; the positive end of the diode D2 is respectively connected with the positive end of the diode D1, one end of the resistor R1 and a pin 4 of the trigger U3; the other end of the resistor R1 is respectively connected with an input power supply +24V and a trigger U3 pin 8; one end of the resistor R2 is respectively connected with the pin 7 and the pin 6 of the trigger U3 and one end of the capacitor C2; the other end of the resistor R2 is connected with a ground wire GND; the other end of the capacitor C2 is respectively connected with a pin 1 of a trigger U3, one end of a capacitor C1 and a ground wire GND; the other end of the capacitor C1 is connected with pin 2 of the trigger U3.
2. The wireless signal conditioning circuit for monitoring water environment according to claim 1, wherein: the surge buffering unit comprises an inductor L1, a capacitor C8, a triode Q1, a diode D4, a diode D3, a capacitor C3 and a resistor R3, wherein one end of the inductor L1 is respectively connected with a base terminal of the triode Q1, one end of the capacitor C8, the other end of the resistor R1, an input power supply +24V, a pin 8 of a U3 of the trigger and a pin 3; the other end of the inductor L1 is respectively connected with a collector terminal of a triode Q1 and one end of a capacitor C3; the emitter terminal of the triode Q1 is respectively connected with the cathode terminal of the diode D4 and the cathode terminal of the diode D3; the other end of the capacitor C3 is respectively connected with the positive end of a diode D3 and one end of a resistor R3; the other end of the resistor R3 is connected with the positive end of the diode D4, the other end of the capacitor C8, the negative end of the diode D2, the input port IN and the negative end of the diode D1 respectively.
3. The wireless signal conditioning circuit for monitoring water environment according to claim 1, wherein: the level conversion unit comprises a resistor R8, a triode Q2 and a resistor R9, wherein one end of the resistor R8 is connected with an emitter terminal of a diode Q1, a cathode terminal of a diode D4 and a cathode terminal of a diode D3 respectively; the other end of the resistor R8 is connected with the base terminal of a triode Q2; the collector terminal of the triode Q2 is respectively connected with one end of an inductor L1, the base terminal of a triode Q1, one end of a capacitor C8, the other end of a resistor R1, an input power supply +24V, a pin 8 of a trigger U3 and a pin 3; the emitter terminal of the triode Q2 is connected with one end of a resistor R9; the other end of the resistor R9 is connected with the ground line GND.
4. The wireless signal conditioning circuit for monitoring water environment according to claim 1, wherein: the signal filtering unit comprises a resistor R4, a resistor R5, a capacitor C4, a capacitor C5, a resistor R7, an operational amplifier U1 and a resistor R6, wherein one end of the resistor R4 is connected with the other end of the resistor R3, the positive end of a diode D4, the other end of the capacitor C8, the negative end of a diode D2, an input port IN and the negative end of a diode D1 respectively; the other end of the resistor R4 is respectively connected with one end of a resistor R5 and the negative end of a capacitor C4; the positive end of the capacitor C4 is respectively connected with the negative end of the capacitor C5 and the ground wire GND; the other end of the resistor R5 is respectively connected with the positive end of the capacitor C5 and the pin 3 of the operational amplifier U1; the pin 2 of the operational amplifier U1 is respectively connected with one end of a resistor R6 and one end of a resistor R7; the other end of the resistor R6 is respectively connected with a pin 4 of an operational amplifier U1 and a ground wire GND; the other end of the resistor R7 is connected with a pin 6 of an operational amplifier U1; and the pin 7 of the operational amplifier U1 is respectively connected with the emitter terminal of the triode Q2 and one end of the resistor R9.
5. The wireless signal conditioning circuit for monitoring water environment according to claim 1, wherein: the signal amplification unit comprises a resistor R11, a resistor R12, a resistor R10, a capacitor C7, an operational amplifier U2 and a capacitor C6, wherein one end of the resistor R11 is connected with the other end of the resistor R7 and a pin 6 of the operational amplifier U1 respectively; the other end of the resistor R11 is respectively connected with the positive end of the capacitor C6, one end of the resistor R10, one end of the resistor R12 and the pin 3 of the operational amplifier U2; the pin 7 of the operational amplifier U2 is respectively connected with the pin 7 of an operational amplifier U1, an emitter terminal of a triode Q2 and one end of a resistor R9; the pin 2 of the operational amplifier U2 is respectively connected with the other end of the resistor R6, the pin 4 of the operational amplifier U1 and the ground wire GND; the pin 4 of the operational amplifier U2 is respectively connected with the negative end of the capacitor C7 and the ground wire GND; the positive end of the capacitor C7 is connected with the other end of the resistor R12; and the negative end of the capacitor C6 is respectively connected with the other end of the resistor R10, the pin 6 of the operational amplifier U2 and the output end OUT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021366220.3U CN212381116U (en) | 2020-07-13 | 2020-07-13 | Wireless signal adjusting circuit for water environment monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021366220.3U CN212381116U (en) | 2020-07-13 | 2020-07-13 | Wireless signal adjusting circuit for water environment monitoring |
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| Publication Number | Publication Date |
|---|---|
| CN212381116U true CN212381116U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021366220.3U Expired - Fee Related CN212381116U (en) | 2020-07-13 | 2020-07-13 | Wireless signal adjusting circuit for water environment monitoring |
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| Country | Link |
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| CN (1) | CN212381116U (en) |
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- 2020-07-13 CN CN202021366220.3U patent/CN212381116U/en not_active Expired - Fee Related
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