CN212893965U - River water emergency treatment device - Google Patents
River water emergency treatment device Download PDFInfo
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- CN212893965U CN212893965U CN202021250985.0U CN202021250985U CN212893965U CN 212893965 U CN212893965 U CN 212893965U CN 202021250985 U CN202021250985 U CN 202021250985U CN 212893965 U CN212893965 U CN 212893965U
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model discloses a river water emergency treatment device, including front end monitoring server and emergent early warning unit, the front end monitoring server is used for carrying out real-time supervision and analysis to the detected data of water quality testing equipment to send out emergent command signal when the detected data appears unusually, emergent early warning unit includes input impedance matching circuit and instruction filtering transmitting circuit, input impedance matching circuit carries out impedance matching to emergent command signal, effectively reduces the loss, promotes emergent command signal transmission quality; the command filtering and transmitting circuit utilizes a second-order band-pass filter to filter signals, interference of external clutter signals is effectively avoided, then voltage stabilization processing is carried out on the filtered signals by utilizing a triode voltage stabilization principle, stability and accuracy in the transmission process of emergency command signals are greatly improved, and finally the signals are sent into a signal transmitter E1 for remote early warning after frequency selection of LC parallel resonance, so that emergency commands of river water pollution are timely and effectively transmitted to command centers at all levels.
Description
Technical Field
The utility model relates to a river water pollutes emergency treatment technical field, especially relates to a river water emergency treatment device.
Background
The river water sudden environmental pollution has the characteristics of sudden occurrence, complex field conditions and difficult prediction of pollution degree and range, has strong uncertainty, can discharge a large amount of pollutants instantly or in a short time, causes pollution to the surrounding environment, and brings different degrees of harm to local normal production and life. In order to timely and properly deal with sudden pollution accidents and provide detailed and reliable monitoring and environmental information for a government command center, the river emergency treatment device capable of quickly and accurately early warning needs to be provided.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an emergency treatment device for river water.
The technical scheme for solving the problem is as follows: a river water emergency treatment device comprises a front-end monitoring server and an emergency early warning unit, wherein the front-end monitoring server is used for monitoring and analyzing detection data of water quality detection equipment in real time and sending an emergency instruction signal when the detection data are abnormal; the emergency early warning unit comprises an input impedance matching circuit and a command filtering and transmitting circuit, wherein the impedance matching circuit is used for improving the input impedance of the emergency command signal, the command filtering and transmitting circuit filters an output signal of the impedance matching circuit by using a second-order band-pass filter, then carries out voltage stabilization processing on the filtered signal by using a triode voltage stabilization principle, and finally sends the signal into a signal transmitter E1 for remote early warning after LC parallel resonance frequency selection.
Further, the input impedance matching circuit comprises a capacitor C1, one end of the capacitor C1 is connected to the analog control instruction output end of the front-end monitoring server, the other end of the capacitor C1 is connected to the non-inverting input end of the operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected to one end of the resistors R2 and R3 and the non-inverting input end of the operational amplifier AR2, the inverting input end and the output end of the operational amplifier AR2 are connected to the non-inverting input end of the operational amplifier AR1 through the resistor R1, the other end of the resistor R2 is grounded, the other end of the resistor R3 is connected to the output end of the operational amplifier AR1 and one end of the resistor R4, and the other end of the resistor R4 is grounded through the parallel resistor.
Further, the instruction filtering transmitting circuit comprises an operational amplifier AR, the in-phase input end of the operational amplifier AR is connected with one end of a capacitor C and one end of a resistor R, the other end of the resistor R is grounded, the other end of the capacitor C is connected with one end of the capacitor C and one end of the resistor R, the other end of the capacitor C is connected with the other end of the resistor R, the other end of the resistor R is connected with the drain electrode of the MOS tube Q, the anti-phase input end of the operational amplifier AR is grounded through the resistor R and is connected with the output end of the operational amplifier AR and the collector electrode of a triode T through the resistor R, the base electrode of the triode T is connected with the collector electrode of the triode T and one end of the resistors R, R and the capacitor C, the other end of the resistor R is grounded, the other end of the resistor R is connected with the grid electrode of the MOS tube Q, the source electrode of the MOS tube Q and the other end of the, the anode of the voltage-stabilizing diode DZ1 is grounded, and the other end of the inductor L1 is connected with the signal transmitter E1 and is grounded through a capacitor C6.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a front end monitoring server carries out real-time supervision and analysis to the detected data of water quality testing equipment to send out emergent command signal when detected data appears unusually, input impedance matching circuit carries out impedance matching to emergent command signal, effectively reduces the loss, promotes emergent command signal transmission quality;
2. the instruction filtering transmitting circuit utilizes the second-order band-pass filter to filter the output signal of the input impedance matching circuit, so that the interference of an external clutter signal is effectively avoided, then the voltage stabilization processing is carried out on the filtered signal by utilizing the triode voltage stabilization principle, and the stability and the precision in the transmission process of the emergency instruction signal are greatly improved.
Drawings
Fig. 1 is a schematic diagram of the input impedance matching circuit of the present invention.
Fig. 2 is a schematic diagram of the command filtering transmitting circuit 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 drawings 1 to 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 a river water emergency treatment device, including front end monitoring server and emergency early warning unit, the front end monitoring server is based on analog control system builds for carry out real-time supervision and analysis to the measured data of water quality testing equipment, water quality testing equipment includes single item or multinomial water quality detector, reflective spectrophotometer, the equal proportion water quality sampler, the Doppler flowmeter, Fourier transform infrared spectrometer and video monitoring instrument etc. when the front end monitoring server monitors that water quality testing data appears unusually, send the emergent command signal that has specific frequency immediately and handle in the emergency early warning unit. The emergency early warning unit comprises an input impedance matching circuit and a command filtering and transmitting circuit, the input impedance matching circuit is used for improving the input impedance of emergency command signals, the command filtering and transmitting circuit utilizes a second-order band-pass filter to filter output signals of the input impedance matching circuit, then the filtered signals are subjected to voltage stabilization processing by utilizing a triode voltage stabilization principle, and finally the signals are sent to a signal transmitter E1 for remote early warning after LC parallel resonance frequency selection.
Because the emergency command signal is easy to generate loss in the transmission line issuing process so as to be submerged in noise, the input impedance matching circuit is adopted to carry out impedance matching on the emergency command signal. As shown in fig. 1, the input impedance matching circuit includes a capacitor C1, one end of the capacitor C1 is connected to the analog control instruction output end of the front-end monitoring server, the other end of the capacitor C1 is connected to the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected to one end of resistors R2 and R3 and the non-inverting input end of an operational amplifier AR2, the inverting input end and the output end of the operational amplifier AR2 are connected to the non-inverting input end of the operational amplifier AR1 through a resistor R1, the other end of the resistor R2 is grounded, the other end of the resistor R3 is connected to the output end of the operational amplifier AR1 and one end of the resistor R4, and the other end of the resistor R4 is grounded. The emergency command signal is coupled by the capacitor C1 and then is sent into the operational amplifier AR1 to be amplified in the same phase proportion, the operational amplifier AR2 applies the voltage follower principle to follow and amplify the voltage at the reverse phase input end of the operational amplifier AR1, the resistor R1 is a megaohm resistor, so that the input impedance of the system can be greatly improved, the characteristic impedance of the high-frequency emergency command signal on a transmission line can be effectively matched through adaptive selection of the resistance value of the resistor R1, the loss is reduced, and the transmission quality of the emergency command signal is improved. The capacitor C2 has a function of filtering and reducing noise of the output signal of the operational amplifier AR 1.
In order to prevent the external environment from interfering the transmission of the emergency command signal, the command filtering and transmitting circuit is designed to further process the output signal of the input impedance matching circuit. As shown in fig. 2, the instruction filtering and transmitting circuit includes an operational amplifier AR, a non-inverting input terminal of the operational amplifier AR is connected to one end of a capacitor C and one end of a resistor R, the other end of the resistor R is grounded, the other end of the capacitor C is connected to one end of the capacitor C and one end of the resistor R, the other end of the capacitor C is connected to the other end of the resistor R, the other end of the resistor R is connected to a drain of a MOS transistor Q, an inverting input terminal of the operational amplifier AR is grounded via the resistor R and connected to an output terminal of the operational amplifier AR and a collector of a transistor T via the resistor R, a base of the transistor T is connected to a collector of the transistor T and one end of the resistors R, R and the capacitor C, the other end of the resistor R is grounded, the other end of the resistor R is connected to a gate of the MOS transistor Q, a source of the MOS transistor Q and the other end of the capacitor C are, the anode of the voltage-stabilizing diode DZ1 is grounded, and the other end of the inductor L1 is connected with the signal transmitter E1 and is grounded through the capacitor C6.
In the working process of the command filtering transmitting circuit, the resistors R6 and R7 and the capacitors C3 and C4 form a second-order RC band-pass filter network in the operational amplifier process of the operational amplifier AR3, the center frequency of the second-order RC band-pass filter network is consistent with the frequency of the emergency command signal, and clutter signals outside a frequency band are filtered by using the principle of a band-pass filter, so that the interference of external clutter signals, such as external electromagnetic interference, system low-frequency interference and the like, can be effectively avoided. The triodes T1, T2 and the voltage stabilizing diode DZ1 form a triode voltage stabilizer to perform voltage stabilizing processing on an output signal of the operational amplifier AR3, wherein the output signal of the triode T1 is shunted by the resistor R10 and then is sent to the base of the triode T2 to be subjected to voltage stabilizing processing by the voltage stabilizing diode DZ1, so that the collector amplification voltage (namely the base voltage of the triode T1) of the triode T2 has good stability, the amplitude of an output signal of an emitter of the triode T1 is ensured to have good stability, meanwhile, the grid potential of the MOS transistor Q1 has good stabilizing effect, and then the triode T2 has good inhibiting effect on system oscillation in the second-order band-pass filtering process, and the stability and the accuracy in the emergency instruction signal transmission process are greatly improved. And then the inductor L1 and the capacitor C6 form LC parallel resonance to carry out frequency selection on the output signal of the triode voltage regulator, and finally, the emergency command signal is remotely transmitted out through the signal transmitter E1.
The utility model discloses when specifically using, real-time supervision and analysis are carried out to the detection data of water quality testing equipment to the front end monitoring server to send out emergent command signal when detecting data the exception, input impedance matching circuit carries out impedance matching to the emergent command signal, effectively reduces the loss, promotes emergent command signal transmission quality. The instruction filtering transmitting circuit utilizes the second-order band-pass filter to filter the output signal of the input impedance matching circuit, so that the interference of an external clutter signal is effectively avoided, then the voltage stabilization processing is carried out on the filtered signal by utilizing the triode voltage stabilization principle, and the stability and the precision in the transmission process of the emergency instruction signal are greatly improved. And finally, sending the river water to a signal transmitter E1 for remote early warning after LC parallel resonance frequency selection, and timely and effectively transmitting the river water pollution emergency instruction to each level of command centers.
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 (1)
1. The utility model provides a river emergency treatment device, includes front end monitoring server and emergency early warning unit, its characterized in that: the emergency early warning unit comprises an input impedance matching circuit and an instruction filtering and transmitting circuit, the input impedance matching circuit comprises a capacitor C1, one end of the capacitor C1 is connected with the analog control instruction output end of the front-end monitoring server, the other end of the capacitor C1 is connected with the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one ends of resistors R2 and R3 and the non-inverting input end of an operational amplifier AR2, the inverting input end and the output end of the operational amplifier AR2 are connected with the non-inverting input end of the operational amplifier AR1 through a resistor R1, the other end of the resistor R2 is grounded, the other end of the resistor R3 is connected with the output end of the operational amplifier AR1 and one end of the resistor R4, and the other end of the resistor R4 is;
the instruction filtering transmitting circuit comprises an operational amplifier AR, wherein the in-phase input end of the operational amplifier AR is connected with one end of a capacitor C and one end of a resistor R, the other end of the resistor R is grounded, the other end of the capacitor C is connected with one end of the capacitor C and one end of the resistor R, the other end of the capacitor C is connected with the other end of the resistor R, the drain electrode of an MOS (metal oxide semiconductor) tube Q is connected with the reverse phase input end of the operational amplifier AR through the resistor R, the output end of the operational amplifier AR and the collector electrode of a triode T are connected through the resistor R, the base electrode of the triode T is connected with the collector electrode of the triode T and one end of the resistors R, R and one end of the capacitor C, the other end of the resistor R is grounded, the other end of the resistor R is connected with the grid electrode of the MOS tube Q, the source electrode of the MOS tube Q and the other end of the capacitor, the anode of the voltage-stabilizing diode DZ1 is grounded, and the other end of the inductor L1 is connected with the signal transmitter E1 and is grounded through a capacitor C6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250985.0U CN212893965U (en) | 2020-07-01 | 2020-07-01 | River water emergency treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250985.0U CN212893965U (en) | 2020-07-01 | 2020-07-01 | River water emergency treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212893965U true CN212893965U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021250985.0U Active CN212893965U (en) | 2020-07-01 | 2020-07-01 | River water emergency treatment device |
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| Country | Link |
|---|---|
| CN (1) | CN212893965U (en) |
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2020
- 2020-07-01 CN CN202021250985.0U patent/CN212893965U/en active Active
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