CN114115188A - Multifunctional automation control experiment system - Google Patents
Multifunctional automation control experiment system Download PDFInfo
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- CN114115188A CN114115188A CN202111391411.4A CN202111391411A CN114115188A CN 114115188 A CN114115188 A CN 114115188A CN 202111391411 A CN202111391411 A CN 202111391411A CN 114115188 A CN114115188 A CN 114115188A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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- Automation & Control Theory (AREA)
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Abstract
The invention discloses a multifunctional automatically-controlled experiment system, which comprises a device operation table and a plane rack in the vertical direction, wherein the device operation table is arranged on the device operation table; the device operation table is fixed on the plane table frame; the method is characterized in that: the plane rack is provided with a water tank, a first dosing unit, a mixing unit and a second dosing unit; a water pump is arranged at the water outlet of the water tank; the water passing through the water pump is divided into two pipelines which respectively enter the first dosing unit and the second dosing unit; the liquid flowing out of the water outlet of the first dosing unit and the liquid flowing out of the water outlet of the second dosing unit can flow into the mixing unit through pipelines; the mixing unit comprises two inlets which are respectively connected with the first and second dosing units; the outlet of the mixing unit is connected to the water tank through a pipeline; an encoder used for measuring the rotating speed of the rotating shaft is arranged on the rotating shaft of the motor of the water pump between the water tank and the dosing unit. In the specific experiment process, different experiment scenes can be selectively carried out, and the experiment teaching can be better assisted.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a multifunctional automatic control experiment system.
Background
The electric automation technology is a comprehensive technology which uses computer technology, information technology, instrument and control theory to control, manage and optimize the whole industrial production process so as to achieve the purposes of improving the production efficiency, improving the reliability and safety, reducing the cost, improving the product quality and the like. Corresponding electrical automation software, hardware and systems are required for implementing electrical automation technology. The widely applied electric automation hardware mainly comprises a human-computer interface (a terminal and an industrial personal computer), a programmable logic controller, a motion controller, a frequency converter, a motor starter, a contactor, a protective relay, a sensor, a signal lamp, an indicator lamp, a button, a switch, a breaker, a power supply, a transformer, an industrial Ethernet switch and the like. In addition to hardware, there are also electrical automation software and electrical automation systems.
In order to adapt to the situation development, many schools develop automation control specialties, and when the schools teach automation control, the schools usually use automation control experiment devices to perform demonstration or grouping experiments. Automated controlled laboratory systems come in a variety of different hierarchical configurations, including basic laboratory devices. The so-called basic experimental facility enables the students who just come into contact with automation to have intuitive knowledge and simple programming of the automation and also enables the students of higher levels of the subject to carry out relevant technological activities. In the existing practical training room, the automatic control basic experimental device usually only integrates a single motor and a driving control method of the motor into an experimental scene, and performs display by completing simple movement or performs related experiments only in a modeling mode, so that the development scene is single, and the development scene is not favorable for cultivating the interest of students.
The prior art is as follows: the application numbers are: CN201910719747.5, invention name: the utility model provides an automatic change plane rack and automatic control experimental apparatus of control experiment device, realizes controlling step motor, servo motor, direct current motor, alternating current motor respectively through the plane rack that sets up automatic control, realizes the transportation to the material to sort the material through material sorting device, make to have controlled object in the experimental scene, supplementary experiment teaching that can be better. Based on the device, the invention provides another automatic control scene, and the device not only can realize the basic logic control of the PLC, but also can realize the communication between the touch screen and the PLC, the motor starting of the contactor and the relay, the motor starting and the control of the motor starter, and the like.
Disclosure of Invention
1. The technical problem to be solved is as follows:
aiming at the technical problem, the invention provides a multifunctional automatic control experiment system; the method comprises a simulated water treatment process and a mixing process of two different liquids, and can realize PLC basic logic control, communication between a touch screen and a PLC, and acquisition and display of signals of motor starting and control, flow velocity, temperature, motor rotating speed and position.
2. The technical scheme is as follows:
a multifunctional automatic control experiment system comprises a device operation table in the vertical direction and a plane table frame; the device operating table is fixed on the plane table frame; the method is characterized in that: the plane rack is provided with a water tank, a first dosing unit, a mixing unit and a second dosing unit; a water pump is arranged at the water outlet of the water tank; the water passing through the water pump is divided into two pipelines which respectively enter the first dosing unit and the second dosing unit; the liquid flowing out of the water outlet of the first dosing unit and the liquid flowing out of the water outlet of the second dosing unit can flow into the mixing unit through pipelines; the mixing unit comprises two inlets which are respectively connected with the first dosing unit and the second dosing unit; the outlet of the mixing unit is connected to a water tank through a pipeline; an encoder used for measuring the rotating speed of the rotating shaft is arranged on the rotating shaft of the motor of the water pump between the water tank and the dosing unit.
Wherein the medicine adding unit comprises a medicine adding hopper and a stirring bin; the bottom of the medicine feeding hopper is connected to the stirring bin through a pipeline, and a mass sensor for measuring the mass of materials in the medicine feeding hopper is arranged at the bottom of the medicine feeding hopper; an electromagnetic valve for controlling whether to add medicine is arranged at an outlet at the bottom of the medicine adding hopper; a stirring rod is arranged in the stirring bin, and a motor for controlling the stirring rod is arranged on the outer side of the bottom of the stirring bin; and a probe of a pH value sensor and a probe of a position sensor are arranged in the stirring bin.
The mixing unit comprises a mixing tank; a stirring device is arranged in the mixing tank, and a motor of the stirring device is arranged at the outer end of the pressurizing tank; a temperature sensor probe and a liquid level sensor probe are arranged in the mixing tank, and a pressure sensor probe is arranged at the bottom of the mixing tank; the mixing tank is also provided with an air inlet which is connected with an air source.
And electromagnetic valves are arranged on a pipeline between the first pressurizing unit and the mixing unit and a pipeline between the second pressurizing unit and the mixing unit.
Further, the surface of the device operating table can be movably provided with a basic construction of an automatic control circuit; the system specifically comprises a power supply module, a PLC, an alternating current motor controller, a frequency converter, a servo driver and a touch screen; the temperature sensor, liquid level sensor, pressure sensor, encoder, level sensor and PH value sensor all can be connected to the wiring foot that PLC corresponds through its circuit that corresponds selectively.
Further, the PLC has a model number of M218; the model of the touch screen is HMI GXO3501, and the model of the frequency converter is ATV 312.
Furthermore, a motor of the water pump is a variable frequency motor, and the motor is connected through a frequency converter arranged on the operating platform to adjust the rotating speed of the motor.
Furthermore, the motor of the dosing unit is a servo motor and is connected with a servo driver of the operating platform to realize the control of the motor.
Furthermore, the motor in the mixing tank is an alternating current motor, and is connected with an alternating current motor controller of the operating platform to realize the control of the motor.
Furthermore, the outer surfaces of the first dosing unit, the mixing unit and the second dosing unit are all transparent structures.
3. Has the advantages that:
(1) the experimental system provided by the invention can realize the communication between the touch screen and the PLC, the motor starting of the contactor and the relay, the motor starting and controlling of the motor starter and the like besides the PLC basic logic control. The M218 can be connected with the configuration software through a serial port, and the configuration software can monitor the whole control system. The frequency converter can run in various working modes, can realize the direct speed regulation of the alternating current motor by the frequency converter, and can also be controlled by the M218 to realize the speed regulation of the alternating current motor by the PLC; m218 may also implement ethernet communications.
(2) In the specific experiment process, the invention can selectively carry out different experiment scenes: the first dosing unit is opened and closed by gas, and is used for students who just touch the first dosing unit to perform automatic dosing and understand simply; the first and second medicine adding units are opened and used for comparing and adding different medicines, and how to use a data acquisition device such as a sensor; the three units are all opened to work, and the mixing ratio of the first different liquid and the second different liquid can be realized.
(3) In the invention, three different types of motors, namely a variable frequency motor, a servo motor and an alternating current motor, are embedded, so that students can understand the corresponding different control methods and the programming methods thereof.
Drawings
FIG. 1 is a schematic view of the overall connection of the present invention;
fig. 2 is a schematic structural diagram in an embodiment.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a multifunctional automatic control experiment system, which comprises a device operating platform 1 in the vertical direction and a plane rack 2; the device operating table is fixed on the plane table frame; the method is characterized in that: the plane rack is provided with a water tank 3, a first dosing unit 4, a mixing unit 5 and a second dosing unit 6; a water pump is arranged at the water outlet of the water tank; the water passing through the water pump is divided into two pipelines which respectively enter the first dosing unit and the second dosing unit; the liquid flowing out of the water outlet of the first dosing unit and the liquid flowing out of the water outlet of the second dosing unit can flow into the mixing unit through pipelines; the mixing unit comprises two inlets which are respectively connected with the first dosing unit and the second dosing unit; the outlet of the mixing unit is connected to a water tank through a pipeline; an encoder used for measuring the rotating speed of the rotating shaft is arranged on the rotating shaft of the motor of the water pump 7 between the water tank and the dosing unit.
Wherein the medicine adding unit comprises a medicine adding hopper and a stirring bin; the bottom of the medicine feeding hopper is connected to the stirring bin through a pipeline, and a mass sensor for measuring the mass of materials in the medicine feeding hopper is arranged at the bottom of the medicine feeding hopper; an electromagnetic valve for controlling whether to add medicine is arranged at an outlet at the bottom of the medicine adding hopper; a stirring rod is arranged in the stirring bin, and a motor for controlling the stirring rod is arranged on the outer side of the bottom of the stirring bin; and a probe of a pH value sensor and a probe of a position sensor are arranged in the stirring bin.
The mixing unit comprises a mixing tank; a stirring device is arranged in the mixing tank, and a motor of the stirring device is arranged at the outer end of the pressurizing tank; a temperature sensor probe and a liquid level sensor probe are arranged in the mixing tank, and a pressure sensor probe is arranged at the bottom of the mixing tank; the mixing tank is also provided with an air inlet which is connected with an air source.
And electromagnetic valves are arranged on a pipeline between the first pressurizing unit and the mixing unit and a pipeline between the second pressurizing unit and the mixing unit.
Further, the surface of the device operating table can be movably provided with a basic construction of an automatic control circuit; the intelligent motor comprises a power supply module, a PLC, an alternating current motor controller, a frequency converter, an intelligent motor starter and a touch screen; the temperature sensor, liquid level sensor, pressure sensor, encoder, level sensor and PH value sensor all can be connected to the wiring foot that PLC corresponds through its circuit that corresponds selectively.
Further, the PLC has a model number of M218; the model of the touch screen is HMI GXO3501, and the model of the frequency converter is ATV 312.
Furthermore, a motor of the water pump is a variable frequency motor, and the motor is connected through a frequency converter arranged on the operating platform to adjust the rotating speed of the motor.
Furthermore, the motor of the dosing unit is a servo motor and is connected with a relay of the operating platform to realize the control of the motor.
Furthermore, the motor in the mixing tank is an alternating current motor, and is connected with an alternating current motor controller of the operating platform to realize the control of the motor.
Furthermore, the outer surfaces of the first dosing unit, the mixing unit and the second dosing unit are all transparent structures.
As shown in fig. 1, the console of the system includes a programmable controller M218, a touch screen HMI GXO5502, a servo driver, a servo motor, a frequency converter, and the like. In the PLC pulse controlled servo system, a servo driver can realize accurate speed control, position control and torque control through different working modes; the PLC can realize the functions of Ethernet communication, communication of a touch screen, high-speed counting input, analog quantity input and output and the like. The PLC is connected with the computer through a serial port, and configuration software communication can be achieved. The planar rack of the system simulates the process of water treatment to realize the control of the stepping motor, the servo motor and the variable frequency motor respectively, the liquid is added with medicine, and two different liquids are mixed through the mixing unit, so that a controlled object exists in a test scene, and the system adopts visual means to better assist in experimental teaching.
The specific embodiment is as follows:
purpose of the experiment: control of two different liquid mixes based on M218 was designed:
as shown in figure 2, when a start button is pressed, a solenoid valve S1 is switched on, a first liquid A is injected into the container, when the liquid level reaches L2, the solenoid valve S1 is switched off, a solenoid valve S2 is switched on, the injection of the first liquid A is stopped, a second liquid B is injected into the container, when the liquid level reaches L1, the injection of the second liquid B is stopped, a stirrer is switched on for stirring, after the preset time of a timer is reached, a stirring device stops stirring, a discharge solenoid valve is switched on simultaneously, when the liquid level reaches L3, a discharge solenoid valve S3 is switched off, an operating cycle is ended, namely, the solenoid valve S1 is switched on again, the liquid A is injected, and the cycle is carried out sequentially, so that the control of the mixing of the solutions is realized.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A multifunctional automatic control experiment system comprises a device operation table in the vertical direction and a plane table frame; the device operating table is fixed on the plane table frame; the method is characterized in that: the plane rack is provided with a water tank, a first dosing unit, a mixing unit and a second dosing unit; a water pump is arranged at the water outlet of the water tank; the water passing through the water pump is divided into two pipelines which respectively enter the first dosing unit and the second dosing unit; the liquid flowing out of the water outlet of the first dosing unit and the liquid flowing out of the water outlet of the second dosing unit can flow into the mixing unit through pipelines; the mixing unit comprises two inlets which are respectively connected with the first dosing unit and the second dosing unit; the outlet of the mixing unit is connected to a water tank through a pipeline; an encoder for measuring the rotating speed of the rotating shaft is arranged on the rotating shaft of the motor of the water pump between the water tank and the dosing unit;
wherein the medicine adding unit comprises a medicine adding hopper and a stirring bin; the bottom of the medicine feeding hopper is connected to the stirring bin through a pipeline, and a mass sensor for measuring the mass of materials in the medicine feeding hopper is arranged at the bottom of the medicine feeding hopper; an electromagnetic valve for controlling whether to add medicine is arranged at an outlet at the bottom of the medicine adding hopper; a stirring rod is arranged in the stirring bin, and a motor for controlling the stirring rod is arranged on the outer side of the bottom of the stirring bin; a probe of a PH value sensor and a probe of a position sensor are arranged in the stirring bin;
the mixing unit comprises a mixing tank; a stirring device is arranged in the mixing tank, and a motor of the stirring device is arranged at the outer end of the pressurizing tank; a temperature sensor probe and a liquid level sensor probe are arranged in the mixing tank, and a pressure sensor probe is arranged at the bottom of the mixing tank; the mixing tank is also provided with an air inlet which is connected with an air source;
and electromagnetic valves are arranged on a pipeline between the first pressurizing unit and the mixing unit and a pipeline between the second pressurizing unit and the mixing unit.
2. The multifunctional automated controlled experiment system according to claim 1, wherein: the surface of the device operating table is movably provided with a basic construction of an automatic control circuit; the system specifically comprises a power supply module, a PLC, an alternating current motor controller, a frequency converter, a servo driver and a touch screen; the temperature sensor, liquid level sensor, pressure sensor, encoder, level sensor and PH value sensor all can be connected to the wiring foot that PLC corresponds through its circuit that corresponds selectively.
3. The multifunctional automated controlled experiment system according to claim 1, wherein: the model of the PLC is M218; the model of the touch screen is HMI GXO3501, and the model of the frequency converter is ATV312
The multifunctional automated controlled experiment system according to claim 1, wherein: the motor of the water pump is a variable frequency motor, and the rotation speed of the motor is adjusted by connecting a frequency converter arranged on the operating platform.
4. The multifunctional automated controlled experiment system according to claim 1, wherein: the motor of the dosing unit is a servo motor and is connected with a servo driver of the operating platform to realize the control of the motor.
5. The multifunctional automated controlled experiment system according to claim 1, wherein: the motor in the mixing tank is an alternating current motor and is connected with an alternating current motor controller of the operation table to realize the control of the motor.
6. The multifunctional automated controlled experiment system according to claim 1, wherein: the outer surfaces of the first dosing unit, the mixing unit and the second dosing unit are all transparent structures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111391411.4A CN114115188A (en) | 2021-11-23 | 2021-11-23 | Multifunctional automation control experiment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111391411.4A CN114115188A (en) | 2021-11-23 | 2021-11-23 | Multifunctional automation control experiment system |
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| CN114115188A true CN114115188A (en) | 2022-03-01 |
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| CN202111391411.4A Pending CN114115188A (en) | 2021-11-23 | 2021-11-23 | Multifunctional automation control experiment system |
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| US20060259195A1 (en) * | 2004-12-22 | 2006-11-16 | Eliuk Walter W | Automated pharmacy admixture system (APAS) |
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| CN210261361U (en) * | 2019-05-29 | 2020-04-07 | 浙江天煌科技实业有限公司 | Real platform of instructing of complete set of processing system of feedwater |
| CN112015135A (en) * | 2020-09-27 | 2020-12-01 | 成都智楷分离科技有限公司 | Automatic control system and control method for dosing device |
-
2021
- 2021-11-23 CN CN202111391411.4A patent/CN114115188A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060259195A1 (en) * | 2004-12-22 | 2006-11-16 | Eliuk Walter W | Automated pharmacy admixture system (APAS) |
| CN202838736U (en) * | 2012-07-05 | 2013-03-27 | 浙江天煌科技实业有限公司 | Comprehensive training platform for water environment monitoring and control technology |
| CN105347410A (en) * | 2015-12-04 | 2016-02-24 | 天津邦盛净化设备工程有限公司 | Control system for small-sized industrial wastewater treatment device |
| CN106054792A (en) * | 2016-06-17 | 2016-10-26 | 无锡职业技术学院 | Liquid mixing PLC (Programmable Logic Controller) practical training device and practical training method |
| CN210261361U (en) * | 2019-05-29 | 2020-04-07 | 浙江天煌科技实业有限公司 | Real platform of instructing of complete set of processing system of feedwater |
| CN112015135A (en) * | 2020-09-27 | 2020-12-01 | 成都智楷分离科技有限公司 | Automatic control system and control method for dosing device |
Non-Patent Citations (1)
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| 陈小亮;罗益民;梁宇峰;: "全自动无守候动态模拟试验装置控制系统的设计与应用", 制造业自动化, no. 24 * |
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