CN212410499U - Integrated intelligent dissolved oxygen sensor probe - Google Patents
Integrated intelligent dissolved oxygen sensor probe Download PDFInfo
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- CN212410499U CN212410499U CN202020109377.1U CN202020109377U CN212410499U CN 212410499 U CN212410499 U CN 212410499U CN 202020109377 U CN202020109377 U CN 202020109377U CN 212410499 U CN212410499 U CN 212410499U
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- dissolved oxygen
- sensor probe
- circuit
- probe
- power data
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- 239000000523 sample Substances 0.000 title claims abstract description 75
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 61
- 239000001301 oxygen Substances 0.000 title claims abstract description 61
- 238000012545 processing Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 claims description 6
- 150000002926 oxygen Chemical class 0.000 claims description 6
- 230000010354 integration Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
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- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
The utility model discloses an integral type intelligent dissolved oxygen sensor probe, it is including dissolving oxygen sensor probe body, embedding in this internal signal processing and operation circuit module of dissolved oxygen sensor probe. The signal processing and operation circuit module is integrated with an MCU controller and an MCU control circuit, an LED indicator light and an LED indicator light circuit, a sensor electrode probe interface circuit and a power supply data line interface circuit. The dissolved oxygen sensor probe body comprises a shell, a sensor probe assembly and a power data transmission cable, the sensor probe assembly is connected with a sensor electrode probe interface circuit, the sensor electrode probe interface circuit is connected with an MCU control circuit, an LED indicating lamp circuit and a power data line interface circuit are connected with the MCU control circuit, and the power data transmission interface circuit is connected with a power data transmission cable 4. The power data transmission cable is connected with a UART serial port, and is directly connected with any equipment needing to use the data through the UART port.
Description
Technical Field
The utility model relates to a water quality monitoring utensil technical field especially relates to an integrated processing circuit module and UART serial ports communication transmission's integral type intelligent type dissolves oxygen sensor probe.
Background
The dissolved oxygen sensor is used for detecting oxygen dissolved in water in a molecular state, the concentration of the dissolved oxygen in the water is related to the survival of aquatic organisms, the concentration condition of the dissolved oxygen in the water is monitored in real time, and the dissolved oxygen sensor is particularly important in the aquaculture industry. In addition, the measurement of the dissolved oxygen concentration is also important in the fields of industry, medicine, and environmental monitoring. For example: for sewage treatment, measuring and adjusting the oxygen content of an activated sludge tank to realize high efficiency of a biological cleaning process; for water quality management, measuring the oxygen content of river and lake water as an index of water quality; for domestic water treatment, measuring the dissolved oxygen of drinking water, and verifying the states of oxygen enrichment, corrosion prevention and the like; for aquafarms, oxygen is measured and regulated to maintain optimal conditions for survival and development.
The probe of the dissolved oxygen sensor belongs to an electrochemical sensor, so that the characteristic value of a signal of the probe is particularly weak, generally in mv level, and referring to fig. 9, the traditional dissolved oxygen sensor transmits a weak analog signal to a host of an amplifying and arithmetic processing circuit specially designed according to specific purposes through a transmission line for signal processing, and then transmits the processed signal to instruments or controllers designed for single purposes, display, monitoring and the like. When the transmission line is too long or the transmission electromagnetic environment is complex, the measurement is particularly easy to be interfered to cause inaccurate measurement. Due to the limitation of the production process of the sensors, the concentration of the filled electrolyte, the purity, the surface area, the thickness and other process factors of the gold electrode plate, the consistency of the sensors is poor, and even the linear ranges of the sensors in the same batch have great difference. Therefore, the sensor needs to be matched with special expensive instrument equipment specially designed in the application process, complicated calibration work needs to be performed through manual intervention, and complicated calibration needs to be performed after the sensors of different hosts of the same model are replaced. Is very inconvenient for the application and popularization of the sensor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art not enough, provide an integrated processing circuit module and UART serial port communication transmission's integral type intelligent type dissolved oxygen sensor probe.
The utility model adopts the technical proposal that: an integrated intelligent dissolved oxygen sensor probe comprises a dissolved oxygen sensor probe body and a signal processing and operation circuit module embedded in the dissolved oxygen sensor probe body, wherein the signal processing and operation circuit module is a PCBA board, the PCBA board is integrated with an MCU controller and an MCU control circuit, an LED indicator light and an LED indicator light circuit, a sensor electrode probe interface circuit and a power supply data line interface circuit, the dissolved oxygen sensor probe body comprises a shell, a sensor probe assembly and a power data transmission cable, the sensor probe assembly is connected with a sensor electrode probe interface circuit, the sensor electrode probe interface circuit is connected with an MCU control circuit, an LED indicating lamp circuit and a power data line interface circuit are connected with the MCU control circuit, the power data transmission interface circuit is connected with a power data transmission cable 4, and the power data transmission cable is connected with a UART serial port.
And the sensor probe assembly comprises an electrode type dissolved oxygen probe and a temperature sensor, wherein the electrode type dissolved oxygen probe and the temperature sensor detect water quality dissolved oxygen and temperature weak analog signals, the analog signals are changed into voltage signals through a sensor electrode probe interface circuit, the voltage signals are transmitted to an MCU control circuit for signal processing and operation, and the voltage signals are output through a UART serial port protocol.
And the LED indicator lamps comprise blue LED indicator lamps and red LED indicator lamps, the MCU controller is internally provided with an algorithm for calibrating a zero oxygen value and a saturated oxygen value, and the LED indicator lamps are used for outputting light signals of the calibration result.
Further, the signal processing and operation circuit module is integrated with an ISP interface.
An installation bottom shell and an installation upper shell which are used for installing a signal processing and arithmetic circuit module are further arranged in the shell of the dissolved oxygen sensor probe body, the signal processing and arithmetic circuit module 3 is arranged on the installation bottom shell, bayonet sockets are arranged on two side edges of the installation bottom shell, the installation upper shell covers the installation bottom shell, clamping convex hooks are arranged on two side edges of the installation upper shell, and the clamping convex hooks are clamped with the bayonet sockets; the sensor probe assembly is connected with the front end of the shell 1 through a screw, the power data transmission cable penetrates out of the back end of the shell, and the back end of the shell is provided with a wire protecting sleeve.
The integrated intelligent dissolved oxygen sensor probe designed by the technical scheme has the following advantages: 1. the signal processing and operation circuit module is embedded into the traditional dissolved oxygen sensor probe, and the matching operation of the embedded circuit module and the embedded sensor probe assembly is automatically completed.
2. The universal UART communication interface standard measuring device has the advantages that universality is high, a measuring operation result is directly output, the use is extremely simple and convenient, equipment meeting the UART communication interface standard can be directly read, and a complicated circuit and a corresponding independent equipment which are required to be separately designed like a traditional dissolved oxygen sensor are not required to be connected and output a single numerical value. Meanwhile, because the output signal is changed from a weak analog signal into a processed digital signal, the anti-interference performance is greatly enhanced.
3. The calibration process is automatically completed, so that the participation degree of personnel in the production process is greatly reduced, the maintenance is convenient, and the production cost is reduced.
4. The intelligent dissolved oxygen sensor probe can be directly connected with any equipment needing to use the data through a UART port.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a perspective view of the structure and appearance of the present invention.
Fig. 3 is the structure diagram of the MCU control circuit of the present invention.
Fig. 4 is the structure diagram of the interface circuit of the sensor electrode probe of the present invention.
Fig. 5 is a circuit diagram of the interface of the power data line of the present invention.
Fig. 6 is the circuit structure diagram of the LED indicating lamp of the present invention.
Fig. 7 is a diagram of the ISP interface circuit structure of the present invention.
Fig. 8 is a schematic block diagram of the circuit structure of the present invention.
Fig. 9 is a schematic block diagram of a conventional dissolved oxygen sensor.
Fig. 10 is a schematic block diagram of the application of the optimized dissolved oxygen sensor of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-8, an integrated intelligent dissolved oxygen sensor probe comprises a dissolved oxygen sensor probe body, a signal processing and computing circuit module 3 embedded in the dissolved oxygen sensor probe body, wherein the signal processing and computing circuit module 3 is a PCBA board, the PCBA board is integrated with an MCU controller, an MCU control circuit, an LED indicator light circuit, a sensor electrode probe interface circuit, and a power data line interface circuit, the dissolved oxygen sensor probe body comprises a housing 1, a sensor probe assembly 2, a power data transmission cable 4, the sensor probe assembly 2 is connected with the sensor electrode probe interface circuit, the sensor electrode probe interface circuit is connected with the MCU control circuit, the LED indicator light circuit, the power data line interface circuit are connected with the MCU control circuit, the power data transmission interface circuit is connected with the power data transmission cable 4, the power data transmission cable 4 is connected with a UART serial port.
And the sensor probe assembly 2 comprises an electrode type dissolved oxygen probe and a temperature sensor, wherein the electrode type dissolved oxygen probe and the temperature sensor detect water quality dissolved oxygen and temperature weak analog signals, the analog signals are changed into voltage signals through a sensor electrode probe interface circuit, the voltage signals are transmitted to an MCU control circuit for signal processing and operation, and the voltage signals are output through a UART (universal asynchronous receiver/transmitter) serial port protocol.
And the LED indicator lamps comprise blue LED indicator lamps and red LED indicator lamps, the MCU controller is internally provided with an algorithm for calibrating a zero oxygen value and a saturated oxygen value, and the LED indicator lamps are used for outputting light signals of the calibration result.
Corresponding algorithms are written into the MCU controller for the calibration process, so that the manual intervention in the calibration process is greatly reduced, and the calibration process of the sensor probe is as follows:
the PWMOUT pin and the GND pin of the outgoing line are short-circuited by a short circuit sleeve, then the calibration is carried out when the short circuit sleeve is powered on (the sensor can be calibrated on line by directly sending a calibration command through a UART) when the power is on, the sensor probe is placed into configured anaerobic water, the red LED indicator light can slowly flicker to indicate the zero oxygen value of the sensor being calibrated at the moment, the red LED indicator light of the sensor is turned off when the red LED indicator light of the sensor is turned off, the blue LED indicator light is normally on to prompt a user that the zero oxygen value is calibrated, at the moment, a calibration person only needs to take the sensor probe out of the anaerobic water to take the short circuit sleeve off and place the short circuit sleeve into saturated oxygen water, the blue LED indicator light flickers to indicate that the saturated oxygen index is being calibrated, if the red LED indicator light is normally on after a moment, the calibration is successful, the sensor probe acquires water temperature and carries out linearization in an MCU controller according, thereby completing the calibration. If abnormity occurs in the calibration process, the red light LED indicator lamp and the blue light LED indicator lamp flash alternately and rapidly to prompt errors.
Therefore, calibration personnel only need to take and place the sensor probe to the oxygen-free water and the saturated oxygen water according to the indicator lamp, and do not need to observe whether the readings of each sensor are stable or not, whether the reading range is abnormal or not and the like, and because the calibration cycle of each sensor probe is about 15 minutes, the automatic calibration of the sensor can greatly improve the production efficiency.
Preferably, the signal processing and computing circuit module is integrated with an ISP interface.
An installation bottom shell 5 and an installation upper shell 6 which are used for installing a signal processing and arithmetic circuit module 3 are further arranged in the shell 1 of the dissolved oxygen sensor probe body, the signal processing and arithmetic circuit module 3 is arranged on the installation bottom shell 5, bayonets are arranged on two side edges of the installation bottom shell 5, the installation upper shell 6 covers the installation bottom shell 5, clamping convex hooks are arranged on two side edges of the installation upper shell 6, and the clamping convex hooks are clamped with the bayonets; the sensor probe assembly 2 is connected with the front end of the shell 1 through a screw, the power data transmission cable 4 penetrates out of the back end of the shell 1, and the back end of the shell 1 is provided with a wire protection sleeve 7.
Referring to fig. 10, the integrated intelligent dissolved oxygen sensor directly completes signal processing operation in the sensor, and outputs through a standard UART interface, and a rear-stage circuit only needs to read through a UART protocol, so that the universality is greatly enhanced, and the anti-interference performance is greatly improved after analog signals are converted into digital signals.
The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. But rather, obvious variations and modifications may be made without departing from the spirit of the invention.
Claims (5)
1. The utility model provides an integral type intelligent dissolved oxygen sensor probe which characterized in that: including dissolved oxygen sensor probe body, embedding in this internal signal processing and arithmetic circuit module of dissolved oxygen sensor probe, signal processing and arithmetic circuit module are a PCBA board, and this PCBA board integration has MCU controller and MCU control circuit, sensor electrode probe interface circuit, LED pilot lamp and LED pilot lamp circuit, power data line interface circuit, dissolved oxygen sensor probe body includes shell, sensor probe assembly, power data transmission cable, and sensor probe assembly and sensor electrode probe interface circuit are connected, and sensor electrode probe interface circuit connects MCU control circuit, and LED pilot lamp circuit, power data line interface circuit are connected with MCU control circuit, and power data transmission interface circuit is connected with power data transmission cable, power data transmission cable is connected with the UART serial ports.
2. The integrated intelligent dissolved oxygen sensor probe of claim 1, wherein: the sensor probe assembly comprises an electrode type dissolved oxygen probe and a temperature sensor, wherein the electrode type dissolved oxygen probe and the temperature sensor detect water quality dissolved oxygen and temperature weak analog signals, the analog signals are changed into voltage signals through a sensor electrode probe interface circuit and transmitted to an MCU control circuit for signal processing and operation, and the voltage signals are output through a UART serial port protocol.
3. The integrated intelligent dissolved oxygen sensor probe of claim 1, wherein: the LED indicating lamp comprises a blue LED indicating lamp and a red LED indicating lamp, the MCU controller is internally provided with an algorithm for calibrating the zero oxygen value and the saturated oxygen value, and the LED indicating lamp is used for outputting a light signal of the calibration result.
4. The integrated intelligent dissolved oxygen sensor probe of claim 1, wherein: and the signal processing and operation circuit module is integrated with an ISP interface.
5. The integrated intelligent dissolved oxygen sensor probe of claim 1, wherein: an installation bottom shell and an installation upper shell which are used for installing a signal processing and arithmetic circuit module are arranged in a shell of the dissolved oxygen sensor probe body, the signal processing and arithmetic circuit module is arranged on the installation bottom shell, bayonets are arranged on two side edges of the installation bottom shell, the installation upper shell covers the installation bottom shell, clamping convex hooks are arranged on two side edges of the installation upper shell, and the clamping convex hooks are clamped with the bayonets; the sensor probe assembly is connected with the front end of the shell through a screw, the power data transmission cable penetrates out of the rear end of the shell, and the rear end of the shell is provided with a wire protecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109377.1U CN212410499U (en) | 2020-01-18 | 2020-01-18 | Integrated intelligent dissolved oxygen sensor probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020109377.1U CN212410499U (en) | 2020-01-18 | 2020-01-18 | Integrated intelligent dissolved oxygen sensor probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212410499U true CN212410499U (en) | 2021-01-26 |
Family
ID=74400681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020109377.1U Expired - Fee Related CN212410499U (en) | 2020-01-18 | 2020-01-18 | Integrated intelligent dissolved oxygen sensor probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212410499U (en) |
-
2020
- 2020-01-18 CN CN202020109377.1U patent/CN212410499U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |