CN105840481A - Water supply controller based on CAN bus - Google Patents
Water supply controller based on CAN bus Download PDFInfo
- Publication number
- CN105840481A CN105840481A CN201610357588.5A CN201610357588A CN105840481A CN 105840481 A CN105840481 A CN 105840481A CN 201610357588 A CN201610357588 A CN 201610357588A CN 105840481 A CN105840481 A CN 105840481A
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- CN
- China
- Prior art keywords
- water supply
- supply controller
- input unit
- variable frequency
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
Abstract
The invention relates to the technical field of controllers and discloses a water supply controller based on a CAN bus. The water supply controller is used for being connected with a variable-frequency water pump unit and comprises an MCU module, a digital input unit, an analog input unit, a CAN bus isolation port, a communication port, a man-machine interface, an electric valve control output unit and a control power supply, the digital input unit, the analog input unit, the CAN bus isolation port, the communication port, the man-machine interface and the electric valve control output unit are connected with the MCU module, the control power supply provides a work power supply for the water supply controller, the electric valve control output unit is connected with the variable-frequency water pump unit, the digital input unit is connected with the variable-frequency water pump unit, the analog input unit is connected with the variable-frequency water pump unit through a pressure transmitter, the CAN bus isolation port is connected with the variable-frequency water pump unit through the CAN bus, and the communication port is connected with an upper computer. A constant-pressure water supply system which is efficient, saves energy and is safe, reliable, high in precision and low in maintenance cost is obtained as a whole.
Description
Technical field
The present invention relates to controller technology field, more specifically, particularly to a kind of changeable water supply controller based on CAN.
Background technology
Urbanization fast development, municipal administration region is increasing, and the water supply network of Running-water Company can not all meet
The water demand become increasingly complex, the most at night with in water time of concentration section, occurs that hydraulic pressure rapid fluctuation even has water supply point
High place occurs as soon as water supply at all and interrupts.
Traditional water supply scheme mainly uses frequency conversion band power frequency handover scheme control system complicated, and the contactor relay of switching makes
Short with the life-span, fault rate is high, working service difficulty.For solving above-mentioned technical problem, confession based on CAN technology is proposed
Water controller, to overcome described defect of the prior art.
Summary of the invention
It is an object of the invention to provide a kind of failure rate is low and changeable water supply controller based on CAN easy to maintenance.
In order to achieve the above object, the technical solution used in the present invention is as follows:
A kind of changeable water supply controller based on CAN, for being connected with variable frequency pump group, described changeable water supply controller includes MCU
Digital quantity input block that module is connected with MCU module, analog input unit, CAN isolating interface, communication connect
Mouth, man-machine interface and electrically operated valve control output unit, and the control power supply for this changeable water supply controller offer working power,
Described electrically operated valve controls output unit and is connected with variable frequency pump group, and described digital quantity input block is connected with variable frequency pump group,
Described analog input unit is connected with variable frequency pump group by a pressure transmitter, and described CAN isolating interface passes through CAN
Bus is connected with variable frequency pump group, and described communication interface and a host computer connect.
Further, in described MCU module, it is provided with the bus module being connected with CAN isolating interface, with communication interface
The communication module connected, controls, with electrically operated valve, the digital output processing module that output unit is connected, is connected with man-machine interface
Display and input processing module, the digital quantity signal processing module being connected with digital quantity input block, with analog input list
The analog signals processing module that unit connects.
Further, it is additionally provided with parameter memory module in described MCU module.
Further, 32 ARM control chips that described MCU module selects model to be ST32F103CBT6.
Compared with prior art, it is an advantage of the current invention that: present invention achieves pressure signal, the adopting of motor-driven valve switching signal
Collection, is provided the controlled quentity controlled variable required for water pump control according to the signal collected, and is real-time transmitted to for water control by CAN
Device processed, changeable water supply controller is implemented to control according to the controlled quentity controlled variable received.Due to high speed, the reliable data transmission performance of CAN,
Making when for hydro-environmental change, this can be reacted by controller rapidly, when controller breaks down, and can be fast
The controller that the closedown of speed goes wrong, it is achieved the work switching of unperturbed.Realize energy-efficient generally, safe and reliable, high
Precision and the constant pressure water supply system of low-maintenance cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing skill
In art description, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to root
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the principle framework figure of the changeable water supply controller based on CAN of the present invention.
Fig. 2 be the present invention changeable water supply controller based on CAN in the circuit diagram of CAN isolating interface.
Fig. 3 be the present invention changeable water supply controller based on CAN in electrically operated valve control output unit circuit diagram.
Fig. 4 be the present invention changeable water supply controller based on CAN in the circuit diagram of analog input unit.
Fig. 5 be the present invention changeable water supply controller based on CAN in the circuit diagram of digital quantity input block.
Fig. 6 be the present invention changeable water supply controller based on CAN in the circuit diagram of parameter memory module.
Detailed description of the invention
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention can be more easy to
In being readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
Refering to shown in Fig. 1, the present invention provides a kind of changeable water supply controller based on CAN, for being connected with variable frequency pump group,
Described changeable water supply controller includes digital quantity input block that MCU module is connected, analog input unit, CAN with MCU module
Bus isolation interface, communication interface, man-machine interface (selection touch-screen) and electrically operated valve control output unit, and for being somebody's turn to do
Changeable water supply controller provides the control power supply of working power, and described electrically operated valve controls output unit and is connected with variable frequency pump group, institute
Stating digital quantity input block to be connected with variable frequency pump group, described analog input unit passes through a pressure transmitter and variable frequency pump
Group connects, and described CAN isolating interface is connected with variable frequency pump group by CAN, described communication interface and upper
Machine connects.
The bus module being connected with CAN isolating interface it is provided with, the communication being connected with communication interface in described MCU module
Module, controls the digital output processing module that is connected of output unit with electrically operated valve, the display being connected with man-machine interface and defeated
Enter processing module, the digital quantity signal processing module being connected with digital quantity input block, the mould being connected with analog input unit
Analog quantity signal processing module.
Refering to shown in Fig. 2, for the circuit of CAN isolating interface, full isolated can interface ADM3053, Fig. 3 are electronic
Valve controlling output unit, Fig. 4 is the circuit of analog input unit, and Fig. 5 is the circuit of digital quantity input block.
Refering to shown in Fig. 1 and Fig. 6, in heretofore described MCU module, it is additionally provided with parameter memory module.
As preferably, described MCU module selection model is 32 ARM control chips of ST32F103CBT6.
The present invention applies in constant pressure water supply system, and the pressure transmitter being arranged in variable frequency pump group is real-time ductwork pressure
The standard signal of 4～20ma is transferred to the analog input unit of changeable water supply controller, is arranged on the motor-driven valve in variable frequency pump group
The switch position signal of door is connected to changeable water supply controller digital quantity input block by holding wire, and host computer is connected to communication and connects
Mouthful, the monitoring pressure of water system, water pump operation information, the switching state of water pump in real time, and more require to arrange accordingly
Control parameter.Microprocessor is according to the pressure mould analog quantity signal inputted, the switch position signal of electrically operated valve, PC control
Parameter is arranged, and is processed by water pump control algolithm (can be selected for existing algorithm, it is also possible to exploitation specially) and draws variable frequency pump control
Amount processed and the switching signal of electrically operated valve, wherein the switching signal of electrically operated valve is directly defeated by electrically operated valve control output unit
Going out and switch pipeline transmission channel to variable frequency pump group, variable frequency pump group controlled quentity controlled variable is real-time transmitted to variable frequency pump by CAN
All controllers in group, in variable frequency pump group, all of frequency converter exports in real time according to controlled quentity controlled variable and controls rotating speed, root accordingly
The most automatically adjusting according to water consumption and control logic accordingly, it is achieved become by Shuitu, hydraulic pressure is not enough, and pump etc. is changed in failover
Constant pressure water supply application scenario.
Due to the fact that the employing high speed of CAN, reliable data transmission performance so that when for hydro-environmental change, controller
Rapidly this can be reacted, when controller breaks down, can quickly close the controller gone wrong, real
The work switching of existing unperturbed.Realize energy-efficient generally, safe and reliable, high accuracy and the constant pressure water supply system of low-maintenance cost
System.
Although being described in conjunction with the accompanying embodiments of the present invention, but patent owner can be in scope of the following claims
Within make various deformation or amendment, as long as less than the protection domain described by claim of the present invention, all should be at this
Within the protection domain of invention.
Claims (4)
1. a changeable water supply controller based on CAN, for being connected with variable frequency pump group, it is characterised in that: described
Changeable water supply controller includes digital quantity input block that MCU module is connected, analog input unit, CAN with MCU module
Bus isolation interface, communication interface, man-machine interface and electrically operated valve control output unit, and carry for this changeable water supply controller
For the control power supply of working power, described electrically operated valve controls output unit and is connected with variable frequency pump group, and described digital quantity is defeated
Entering unit to be connected with variable frequency pump group, described analog input unit is connected with variable frequency pump group by a pressure transmitter,
Described CAN isolating interface is connected with variable frequency pump group by CAN, and described communication interface and a host computer connect.
Changeable water supply controller based on CAN the most according to claim 1, it is characterised in that: described MCU mould
Being provided with the bus module being connected with CAN isolating interface in block, the communication module being connected with communication interface, with electronic
The digital output processing module that Valve controlling output unit connects, the display being connected with man-machine interface and input processing mould
Block, the digital quantity signal processing module being connected with digital quantity input block, the analog quantity being connected with analog input unit is believed
Number processing module.
Changeable water supply controller based on CAN the most according to claim 1, it is characterised in that: described MCU mould
Parameter memory module it is additionally provided with in block.
Changeable water supply controller based on CAN the most according to claim 1, it is characterised in that: described MCU mould
32 ARM control chips that block selects model to be ST32F103CBT6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357588.5A CN105840481B (en) | 2016-05-25 | 2016-05-25 | A kind of changeable water supply controller based on CAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610357588.5A CN105840481B (en) | 2016-05-25 | 2016-05-25 | A kind of changeable water supply controller based on CAN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840481A true CN105840481A (en) | 2016-08-10 |
| CN105840481B CN105840481B (en) | 2018-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610357588.5A Active CN105840481B (en) | 2016-05-25 | 2016-05-25 | A kind of changeable water supply controller based on CAN |
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| CN (1) | CN105840481B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630387A (en) * | 2018-11-19 | 2019-04-16 | 沪东重机有限公司 | The frequency-changing control system and its control method of diesel engine water supply pump |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000037340A (en) * | 1999-07-30 | 2000-02-08 | Sanyo Electric Co Ltd | Dish washer |
| JP2004176726A (en) * | 2004-01-16 | 2004-06-24 | Ebara Corp | Water feeding pump controller |
| CN202694092U (en) * | 2012-04-16 | 2013-01-23 | 杭州锐方科技有限公司 | Constant-pressure water supply group control system based on CAN bus |
| CN203174694U (en) * | 2013-03-05 | 2013-09-04 | 安徽理工大学 | Constant-pressure variable frequency water supply control device based on ARM |
| CN205638881U (en) * | 2016-05-25 | 2016-10-12 | 广州劳仑斯变频技术有限公司 | Water supply control ware based on CAN bus |
-
2016
- 2016-05-25 CN CN201610357588.5A patent/CN105840481B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000037340A (en) * | 1999-07-30 | 2000-02-08 | Sanyo Electric Co Ltd | Dish washer |
| JP2004176726A (en) * | 2004-01-16 | 2004-06-24 | Ebara Corp | Water feeding pump controller |
| CN202694092U (en) * | 2012-04-16 | 2013-01-23 | 杭州锐方科技有限公司 | Constant-pressure water supply group control system based on CAN bus |
| CN203174694U (en) * | 2013-03-05 | 2013-09-04 | 安徽理工大学 | Constant-pressure variable frequency water supply control device based on ARM |
| CN205638881U (en) * | 2016-05-25 | 2016-10-12 | 广州劳仑斯变频技术有限公司 | Water supply control ware based on CAN bus |
Non-Patent Citations (2)
| Title |
|---|
| 李鹏: ""基于EPEC2038的恒压供水控制系统设计"", 《科技资讯》 * |
| 蔡新岗等: ""基于STM32的智能水泵控制器设计"", 《仪表技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630387A (en) * | 2018-11-19 | 2019-04-16 | 沪东重机有限公司 | The frequency-changing control system and its control method of diesel engine water supply pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105840481B (en) | 2018-02-09 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 510663 Guangdong Guangzhou hi tech Industrial Development Zone, Science City, Xiangshan Road No. 17, B201 Applicant after: Guangzhou Sanjing drive control technology Co. Ltd. Address before: 510663 B, No. 9, litchi mountain road, Guangzhou, Guangdong high tech Industrial Development Zone, 306 Applicant before: Guangzhou Lawrence Frequency Conversion Technology Co., Ltd. |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20181206 Address after: 510663 No. 9, Lichishan Road, Science City, Guangzhou High-tech Industrial Development Zone, Guangdong Province Patentee after: GUANGZHOU SANJING ELECTRIC CO., LTD. Address before: 510663 Workshop B201, No. 17 Xiangshan Road, Science City, Guangzhou High-tech Industrial Development Zone, Guangdong Province Patentee before: Guangzhou Sanjing drive control technology Co. Ltd. |