CN208689045U - A kind of pH on-line computing model - Google Patents
A kind of pH on-line computing model Download PDFInfo
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- CN208689045U CN208689045U CN201821302617.9U CN201821302617U CN208689045U CN 208689045 U CN208689045 U CN 208689045U CN 201821302617 U CN201821302617 U CN 201821302617U CN 208689045 U CN208689045 U CN 208689045U
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Abstract
The utility model describes a kind of pH on-line computing model, including processor module, it is connected separately with key circuit module, power circuit block, pH detection circuit module on the input port of the processor module, display circuit module and current output circuit module are connected separately on the output port of processor module；The processor module includes the chip IC 5 of model STC15LE520AD, first pin of chip IC 5 is separately connected one end of capacitor C4 and one end of resistance R2, the other end of resistance R2 is grounded, the other end of capacitor C4 connects power input VCC, 20th pin of the chip IC 5 is separately connected one end and the power input VCC of capacitor C5, the other end of capacitor C5 is grounded, the tenth pin ground connection of the chip IC 5.The utility model thoroughly solves the problems, such as to need to frequently replace electrode in traditional equipment, reduces operation maintenance cost.
Description
Technical field
The utility model relates to the pH of aqueous solution detection, especially a kind of pH on-line computing model belongs to environmental monitoring technology
Field.
Background technique
With the fast development of China's manufacturing industry, the problem of environmental pollution, also becomes increasingly conspicuous, especially for the dirt at water source
Dye, this is directly related to the health and life security of people, and therefore, the environment real time monitoring for water resource is to reduce dirt
Dye, the important means for realizing sustainable development.Now currently, what is generallyd use is pH on-line computing model to realize for water environment
Monitoring, still, pH on-line computing model used at present substantially use import brand WTW, the pH on-line computing model of the brand
In, the electrode that uses needs annual replacement, and this electrode delivery cycle is longer, and price is very expensive, and maintenance cost is also very
Height, this causes enterprise very long for the maintenance cycle of equipment, and operation cost is also higher.
Utility model content
For above-mentioned deficiency in the prior art, exist the main purpose of the utility model is that solving existing pH used at present
At high cost, maintenance period length the problem that line monitor is frequently resulted in due to electrode replacement, and provide a kind of with inexpensive, high
The pH on-line computing model of reliability.
The technical solution of the utility model includes: a kind of pH on-line computing model, which is characterized in that including processor module, in institute
It states and is connected separately with key circuit module, power circuit block, pH detection circuit module on the input port of processor module,
Display circuit module and current output circuit module are connected separately on the output port of processor module；The processor module
Chip IC 5 including model STC15LE520AD, the first pin of chip IC 5 are separately connected one end and the resistance R2 of capacitor C4
One end, the other end ground connection of resistance R2, the other end of capacitor C4 connects power input VCC, the 20th of the chip IC 5 the
Pin is separately connected one end and the power input VCC of capacitor C5, and the other end of capacitor C5 is grounded, and the tenth of the chip IC 5 the
Pin ground connection；The key circuit module includes the key K1 being connected with the 16th pin of chip IC 5, the with chip IC 5
The connected key K2 of 15 pins, the key K3 being connected with the 14th pin of chip IC 5, the 13rd pin with chip IC 5
It connected key K4, the key K5 being connected with the 12nd pin of chip IC 5 and is pressed with what the 11st pin of chip IC 5 was connected
Key K6, the key K1, key K2, key K3, key K4, key K5 and key K6 are grounded；The power circuit block packet
Chip IC 1, chip IC 2 and chip IC 3 are included, the first pin of the chip IC 1 and the second pin of chip IC 1 are defeated with signal
Enter end to be connected, the third pin of chip IC 1 is separately connected one end of capacitor C1 and the first pin of chip IC 2, and capacitor C1's is another
One end is separately connected the 4th pin and second pin and the ground connection of chip IC 2 of chip IC 1, the third pin of the chip IC 2
It is separately connected one end of 5V DC power supply, the first pin of chip IC 3, the third pin of chip IC 3 and capacitor C2, chip IC 2
The 4th pin ground connection, the second pin of the other end connection chip IC 3 of the capacitor C2 and ground connection, the of the chip IC 3
Five pins are separately connected one end of power input VCC and capacitor C3, the other end ground connection of capacitor C3.
Optimally, the pH detection circuit module includes chip IC 4, and the first pin of chip IC 4 connects 5V DC power supply,
The second pin of chip IC 4 and the third pin of chip IC 4 are grounded, the 4th pin of chip IC 4 be connected with resistance R3 after again
Be separately connected one end of capacitor C7 and one end of resistance R6, the other end of the capacitor C7 be separately connected the other end of resistance R6,
One end of capacitor C8, one end of resistance R7 and ground connection, the other end of capacitor C8 are separately connected the other end and resistance R4 of resistance R7
One end, the 6th pin of the other end connection chip IC 4 of resistance R4, the 18th of the 5th pin of chip IC 4 and chip IC 5 the
Pin is connected.
Optimally, the display circuit module includes chip IC 6, the first pin ground connection of chip IC 6, and the of chip IC 6
Two pins connect 5V DC power supply, the slider of the third pin connection slide rheostat R1 of chip IC 6, slide rheostat R1
One end connect 5V DC power supply, slide rheostat R1 the other end ground connection；The 4th pin connection chip IC 5 of chip IC 6
6th pin, the 7th pin of the 5th pin connection chip IC 5 of chip IC 6, the 6th pin of chip IC 6 connect chip IC 5
The 8th pin, the 15th pin ground connection of chip IC 6, the 19th pin point of the 17th pin of chip IC 6 and chip IC 6
Not Lian Jie 5V DC power supply, chip IC 6 the 20th pin ground connection.
Optimally, the current output circuit module includes chip IC 7, and the first pin of chip IC 7 connects power input
Hold VCC, the second pin of the second pin connection chip IC 5 of chip IC 7, the of the third pin connection chip IC 5 of chip IC 7
Three pins, the 4th pin ground connection of chip IC 7.
In the utility model, the model DB107 of the chip IC 1, the model LM2596 of the chip IC 2 are described
The model SPX3819 of chip IC 3, the chip IC 4 and chip IC 6 can also select existing chip, the chip IC 7
Model UART1.
Compared with the existing technology, the utility model has the following beneficial effects:
1, the pH on-line computing model of the utility model uses completely new hardware configuration, controls, matches by core of single-chip microcontroller
The pH detection circuit and temperature sensing circuit with high reliability are closed, the problem of needing electrode that could detect pH value is changed, it is thorough
The solving the problems, such as of bottom needs to frequently replace electrode in traditional equipment.
2, operation maintenance cost is reduced, due to not needing frequently to replace electrode, the cost of maintenance is substantially reduced,
The service life of equipment extends, and reliability improves, and is also beneficial to promote the efficiency of business processes failure.
3, cost is lower, and later maintenance cost is relatively cheap, therefore has wider application prospect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model pH on-line computing model；
Fig. 2 is the circuit diagram of processor module in the utility model；
Fig. 3 is the circuit diagram of key circuit module in the utility model；
Fig. 4 is the circuit diagram of power circuit block in the utility model；
Fig. 5 is the circuit diagram of pH detection circuit module in the utility model；
Fig. 6 is the circuit diagram of display circuit module in the utility model；
Fig. 7 is the circuit diagram of current output circuit module in the utility model；
In figure, 1-processor module, 2-key circuit modules, 3-power circuit blocks, 4-pH detection circuit modules,
5-display circuit modules, 6-current output circuit modules.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1-Fig. 7, a kind of pH on-line computing model of the utility model, it includes processor module 1, at the place
It manages and is connected separately with key circuit module 2, power circuit block 3, pH detection circuit module 4 on the input port of device module 1,
Display circuit module 5 and current output circuit module 6 are connected separately on the output port of processor module 1；The processor
The chip IC 5 of module 1 including model STC15LE520AD, the first pin of chip IC 5 be separately connected capacitor C4 one end and
One end of resistance R2, the other end ground connection of resistance R2, the other end of capacitor C4 connect power input VCC, the chip IC 5
20th pin is separately connected one end and the power input VCC of capacitor C5, the other end ground connection of capacitor C5, the chip IC 5
The tenth pin ground connection；The key circuit module 2 includes the key K1 and chip being connected with the 16th pin of chip IC 5
The connected key K2 of the 15th pin of IC5, the key K3 being connected with the 14th pin of chip IC 5, the with chip IC 5 the tenth
The connected key K4 of three pins, the key K5 being connected with the 12nd pin of chip IC 5 and with the 11st pin phase of chip IC 5
Key K6 even, the key K1, key K2, key K3, key K4, key K5 and key K6 are grounded；The power circuit
Module 3 includes chip IC 1, chip IC 2 and chip IC 3, and the first pin of the chip IC 1 and the second pin of chip IC 1 are equal
It is connected with signal input part, the third pin of chip IC 1 is separately connected one end of capacitor C1 and the first pin of chip IC 2, electricity
The other end for holding C1 is separately connected the 4th pin and second pin and the ground connection of chip IC 2 of chip IC 1, the chip IC 2
Third pin is separately connected one end of 5V DC power supply, the first pin of chip IC 3, the third pin of chip IC 3 and capacitor C2,
4th pin of chip IC 2 is grounded, and the other end of the capacitor C2 connects second pin and the ground connection of chip IC 3, the chip
The 5th pin of IC3 is separately connected one end of power input VCC and capacitor C3, the other end ground connection of capacitor C3.
In the utility model, the pH detection circuit module 4 includes chip IC 4, and the first pin connection 5V of chip IC 4 is straight
Galvanic electricity source, the second pin of chip IC 4 and the third pin of chip IC 4 are grounded, the 4th pin and the resistance R3 phase of chip IC 4
Lian Houzai is separately connected one end of capacitor C7 and one end of resistance R6, and the other end of the capacitor C7 is separately connected the another of resistance R6
One end, one end of capacitor C8, one end of resistance R7 and ground connection, the other end of capacitor C8 are separately connected the other end and electricity of resistance R7
Hinder one end of R4, the 6th pin of the other end connection chip IC 4 of resistance R4, the of the 5th pin of chip IC 4 and chip IC 5
18 pins are connected.The display circuit module 5 includes chip IC 6, and the first pin of chip IC 6 is grounded, and the second of chip IC 6
Pin connects 5V DC power supply, and the third pin of chip IC 6 connects the slider of slide rheostat R1, slide rheostat R1's
One end connects 5V DC power supply, the other end ground connection of slide rheostat R1；The of the 4th pin connection chip IC 5 of chip IC 6
Six pins, the 7th pin of the 5th pin connection chip IC 5 of chip IC 6, the 6th pin connection chip IC 5 of chip IC 6
8th pin, the 15th pin ground connection of chip IC 6, the 17th pin of chip IC 6 and the 19th pin difference of chip IC 6
Connect 5V DC power supply, the 20th pin ground connection of chip IC 6.The current output circuit module 6 includes chip IC 7, chip
The first pin of IC7 connects power input VCC, the second pin of the second pin connection chip IC 5 of chip IC 7, chip IC 7
Third pin connection chip IC 5 third pin, chip IC 7 the 4th pin ground connection.
In the utility model, processor module 1 when controlling modules work, is grasped according to preset program
Make, main program is first carried out after first electrification reset, program is executed since 0000H, initially enters system initialization, i.e. setting heap
Whether just stack pointer, initialization ram cell and channel address, system autodiagnosis (check device hardware circuit and software section operation
Often) etc., it subsequently enters reading and keeps data module, carry out key scan, calculate pH value, calculate temperature, calculate PWM output etc.,
Finally execute display and output.This programme selects C voice to be programmed, and C voice has concision and compact, flexible and convenient, operator
Abundant, data type is enriched, expression way is flexibly practical, is allowed directly to access physical address, is generated object code quality height, journey
The advantages that sequence execution efficiency is high, portable good, expressiveness is strong.
Equipment also contemplates anti-interference process, it is the proactive initialization by (1) program: in each section of program, to list
The various functions of piece machine and piece external expansion device, port, mode, state etc. take permanent setting.System will not only guarantee
Powering on rear system will initialize every time using certain function, will control register set action mode to corresponding again,
To guarantee that it is minimum that interference is reduced to.(2) instruction is heavy remaining: will lead to program fleet after CPU is interfered, so as to cause entire
The confusion of program is the program recovery normally a kind of measure for making " run and fly " using " instruction is heavy remaining ".
Further, it is also contemplated that output circuit interference protection measure: (1) relay coil increases freewheeling diode, eliminates
The counter electromotive force interference generated when disconnecting coil.(2) each IC wants and connects a 0.01uF-0.1uF high frequency capacitance on capacitor board,
To reduce influence of the IC to power supply.(3) 90 degree of broken lines are avoided when being routed, and reduce high-frequency noise transmitting.
It should be noted that above embodiments are only to illustrate technical solutions of the utility model rather than restriction technologies scheme,
Although applicant is explained in detail the utility model referring to preferred embodiment, those skilled in the art should be managed
Solution, those to technical solutions of the utility model carry out modification or equivalent replacement, cannot be detached from the technical program objective and
Range should all cover in the utility model claims range.
Claims (4)
1. a kind of pH on-line computing model, which is characterized in that the input including processor module (1), in the processor module (1)
Key circuit module (2), power circuit block (3), pH detection circuit module (4) are connected separately on port, in processor die
Display circuit module (5) and current output circuit module (6) are connected separately on the output port of block (1)；The processor die
Block (1) includes the chip IC 5 of model STC15LE520AD, the first pin of chip IC 5 be separately connected capacitor C4 one end and
One end of resistance R2, the other end ground connection of resistance R2, the other end of capacitor C4 connect power input VCC, the chip IC 5
20th pin is separately connected one end and the power input VCC of capacitor C5, the other end ground connection of capacitor C5, the chip IC 5
The tenth pin ground connection；The key circuit module (2) includes the key K1 and core being connected with the 16th pin of chip IC 5
The of the connected key K2 of the 15th pin of piece IC5, the key K3 being connected with the 14th pin of chip IC 5 and chip IC 5
The connected key K4 of 13 pins, the key K5 being connected with the 12nd pin of chip IC 5 and with the 11st pin of chip IC 5
Connected key K6, the key K1, key K2, key K3, key K4, key K5 and key K6 are grounded；The power supply electricity
Road module (3) includes chip IC 1, chip IC 2 and chip IC 3, and the first pin of the chip IC 1 and the second of chip IC 1 are drawn
Foot is connected with signal input part, and the third pin of chip IC 1 is separately connected one end of capacitor C1 and the first of chip IC 2 is drawn
Foot, the other end of capacitor C1 are separately connected the 4th pin and second pin and the ground connection of chip IC 2 of chip IC 1, the chip
The third pin of IC2 is separately connected 5V DC power supply, the first pin of chip IC 3, the third pin of chip IC 3 and capacitor C2's
The other end of one end, the 4th pin ground connection of chip IC 2, the capacitor C2 connects second pin and the ground connection of chip IC 3, described
5th pin of chip IC 3 is separately connected one end of power input VCC and capacitor C3, the other end ground connection of capacitor C3.
2. a kind of pH on-line computing model according to claim 1, which is characterized in that pH detection circuit module (4) packet
Chip IC 4 is included, the first pin of chip IC 4 connects 5V DC power supply, and the second pin of chip IC 4 and the third of chip IC 4 are drawn
Foot is grounded, and the 4th pin of chip IC 4 is separately connected one end of capacitor C7 and one end of resistance R6 after being connected with resistance R3 again,
The other end of the capacitor C7 is separately connected the other end of resistance R6, one end of capacitor C8, one end of resistance R7 and ground connection, capacitor
The other end of C8 is separately connected the other end of resistance R7 and one end of resistance R4, and the of the other end connection chip IC 4 of resistance R4
5th pin of six pins, chip IC 4 is connected with the 18th pin of chip IC 5.
3. a kind of pH on-line computing model according to claim 2, which is characterized in that the display circuit module (5) includes
Chip IC 6, the first pin ground connection of chip IC 6, the second pin of chip IC 6 connect 5V DC power supply, and the third of chip IC 6 is drawn
Foot connects the slider of slide rheostat R1, and one end of slide rheostat R1 connects 5V DC power supply, slide rheostat R1's
Other end ground connection；6th pin of the 4th pin connection chip IC 5 of chip IC 6, the 5th pin of chip IC 6 connect chip
The 7th pin of IC5, the 8th pin of the 6th pin connection chip IC 5 of chip IC 6, the 15th pin ground connection of chip IC 6,
17th pin of chip IC 6 and the 19th pin of chip IC 6 are separately connected 5V DC power supply, and the 20th of chip IC 6 is drawn
Foot ground connection.
4. a kind of pH on-line computing model according to claim 3, which is characterized in that the current output circuit module (6)
Including chip IC 7, the first pin of chip IC 7 connects power input VCC, the second pin connection chip IC 5 of chip IC 7
Second pin, the third pin of the third pin connection chip IC 5 of chip IC 7, the 4th pin ground connection of chip IC 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302617.9U CN208689045U (en) | 2018-08-14 | 2018-08-14 | A kind of pH on-line computing model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821302617.9U CN208689045U (en) | 2018-08-14 | 2018-08-14 | A kind of pH on-line computing model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208689045U true CN208689045U (en) | 2019-04-02 |
Family
ID=65885077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821302617.9U Expired - Fee Related CN208689045U (en) | 2018-08-14 | 2018-08-14 | A kind of pH on-line computing model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208689045U (en) |
-
2018
- 2018-08-14 CN CN201821302617.9U patent/CN208689045U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 Termination date: 20190814 |