CN110989488A - Programmable logic controller detection system and method - Google Patents

Programmable logic controller detection system and method Download PDF

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Publication number
CN110989488A
CN110989488A CN201911390098.5A CN201911390098A CN110989488A CN 110989488 A CN110989488 A CN 110989488A CN 201911390098 A CN201911390098 A CN 201911390098A CN 110989488 A CN110989488 A CN 110989488A
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China
Prior art keywords
module
unit
programmable logic
logic controller
emergency stop
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CN201911390098.5A
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Inventor
孟德凤
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Jiangsu Oulian Intelligent Technology Co Ltd
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Jiangsu Oulian Intelligent Technology Co Ltd
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Priority to CN201911390098.5A priority Critical patent/CN110989488A/en
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054Input/output
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/10Plc systems
    • G05B2219/11Plc I-O input output
    • G05B2219/1103Special, intelligent I-O processor, also plc can only access via processor

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Programmable Controllers (AREA)

Abstract

The invention relates to the technical field of programmable logic controller operation, in particular to a programmable logic controller detection system and a method, wherein the programmable logic controller detection system comprises a data acquisition module, a data processing module, a programmable logic controller, a fault detection module and an emergency stop module, wherein the fault detection module comprises an alarm unit, a power supply circuit breaking unit and a fault positioning unit, and the emergency stop module comprises an automatic pause unit; the invention can find the fault in the equipment in time by arranging the fault detection module, and can send out an alarm and carry out accurate positioning; the emergency stop module is arranged, if serious faults and errors occur to the equipment, the operation of the whole system can be immediately and automatically stopped, damage can be stopped in time, and meanwhile, the emergency stop module is provided with the emergency stop button, so that the operation and the stop of the whole system can be manually controlled, and the emergency in practical application can be conveniently coped with.

Description

Programmable logic controller detection system and method
Technical Field
The invention relates to the technical field of programmable logic controller operation, in particular to a detection system and a detection method for a programmable logic controller.
Background
Programmable logic controllers are digital arithmetic-operating electronic systems designed specifically for use in industrial environments. It uses a programmable memory, in which the instructions for implementing logical operation, sequence control, timing, counting and arithmetic operation are stored, and utilizes digital or analog input and output to control various mechanical equipments or production processes. The advantages of the programmable logic controller used in industry at present are that the programmable logic controller is equal to or close to the host of a compact computer, and the programmable logic controller is widely applied to various industrial control fields at present due to the advantages of expandability and reliability.
However, the existing programmable logic controller application is not perfect for monitoring the abnormality of equipment and products.
Accordingly, the present invention is directed to a detection system and method for a programmable logic controller to solve the above-mentioned problems.
Disclosure of Invention
The present invention is directed to a detection system and method for a programmable logic controller, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a programmable logic controller detecting system is provided, which comprises a data acquisition module, a data processing module, a programmable logic controller, a fault detection module and an emergency stop module, wherein the data acquisition module comprises a plurality of data acquisition devices, each data acquisition device comprises different sensors and measuring instruments, the sensors and the measuring instruments are used for detecting actual information of products and transmitting the actual information to the data processing module, the data processing module is used for receiving the actual information of the products acquired by the data acquisition module, a protocol analysis unit is arranged in the data processing module, communication protocols used by different devices are different, the protocol analysis unit is used for normalizing the communication protocols and transmitting the normalized communication protocols to the programmable logic controller after processing, and the programmable logic controller carries out programming operation in the programmable logic controller so that the programmable logic controller can process transmitted data and further control the devices to carry out related operation, meanwhile, information is transmitted to the fault detection module and the emergency stop module, the fault detection module comprises an alarm unit, a power supply circuit breaking unit and a fault positioning unit, the emergency stop module comprises an automatic pause unit, and the automatic pause unit can receive a pause signal sent by the programmable logic controller and pause the whole system in time.
Preferably, the sensors in the sensor module are digital sensors for converting the non-electrical quantity being measured into a digital output signal.
Preferably, the sensors in the sensor module include pressure-sensitive sensors, position sensors, energy consumption sensors and thermal-sensitive sensors.
Preferably, the emergency stop module comprises an emergency stop button, and the manual control of the emergency stop button can realize the emergency stop of the whole system.
Preferably, the alarm unit comprises a buzzer and an indicator light, and the alarm is given by the sound emitted by the buzzer and the color of the indicator light.
A detection method of a Programmable Logic Controller (PLC), the method comprising the following steps:
s1: data acquisition equipment in the data acquisition module acquires data and transmits the data to the data processing module;
s2: the data processing module processes the data, normalizes the data using different protocols into the data under the same protocol and transmits the data to the programmable logic controller;
s3: the programmable logic controller processes the transmitted information according to an internally set program logic, further controls the specific operation of related equipment, and simultaneously transmits the information to the fault detection module and the emergency stop module;
s4: the fault detection module and the emergency stop module analyze and filter information, the fault detection module controls the alarm unit, the power supply circuit breaking unit and the fault positioning unit, and the emergency stop module controls the automatic pause unit.
Preferably, in step S, the fault detection module controls the alarm unit to determine whether to alarm according to the transmitted information content, and in step S, the fault detection module controls the power supply disconnection unit to determine whether to have short circuit or disconnection abnormal conditions according to the transmitted information content, so as to disconnect the power supply to the abnormal component, and in step S, the fault location unit determines the position of the fault according to the transmitted information content, and then displays the information.
Preferably, the emergency stop module controls the automatic pause unit to determine whether an emergency occurs according to the transmitted information content, and the automatic pause unit controls the pause of the whole system.
Compared with the prior art, the invention has the beneficial effects that: the data processing module is arranged, and the protocol analysis unit is arranged in the data processing module, so that different communication protocols used by different devices can be subjected to normalization processing, and the system can simultaneously process data information fed back by the multi-protocol device; the fault detection module is arranged, so that the fault in the equipment can be timely found, and an alarm can be given out and accurate positioning can be carried out; the emergency stop module is arranged, if serious faults and errors occur to the equipment, the operation of the whole system can be immediately and automatically stopped, damage can be stopped in time, and meanwhile, the emergency stop module is provided with the emergency stop button, so that the operation and the stop of the whole system can be manually controlled, and the emergency in practical application can be conveniently coped with.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a fault detection module according to the present invention;
FIG. 3 is a schematic structural diagram of an emergency stop module according to the present invention;
fig. 4 is a flow chart of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a data acquisition module, 2-a data processing module, 3-a programmable logic controller, 4-a fault detection module, 401-an alarm unit, 402-a power supply circuit breaking unit, 403-a fault positioning unit, 5-an emergency stop module, 501-an automatic pause unit and 502-an emergency pause button.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a programmable logic controller detecting system, as shown in fig. 1-4, which includes a data acquisition module 1, a data processing module 2, a programmable logic controller 3, a fault detection module 4, and an emergency stop module 5, where the data acquisition module 1 includes a plurality of data acquisition devices, each data acquisition device includes a different sensor and a different measuring instrument, the sensor is a digital sensor, and is used to convert a measured non-electrical quantity into a digital output signal, and includes a pressure-sensitive sensor, a position sensor, an energy consumption sensor, a thermal sensor, etc., the sensor and the measuring instrument are used to detect actual information of a product and transmit the actual information to the data processing module 2, the actual information includes specific information of the length, width, height, weight, temperature, surface resilience, and angular position of an internal component of the product, and the data processing module 2 is used to receive actual information of the product acquired by the data acquisition module 1, and the inside has the protocol analysis unit, the communication protocol that different apparatuses use is different, the protocol analysis unit is used for normalizing the communication protocol, transfer to the programmable logic controller 3 after turning many kinds of communication protocols into one, the programmable logic controller 3 makes it can process the data transmitted through carrying on the programming operation to its inside, according to the product information that the data acquisition module 1 gathers, and then combine the concrete program logic of inside, and then send the relevant order to the apparatus, transmit the information to the detection module 4 of the trouble and emergency stop module 5 at the same time, the detection module 4 of the trouble includes the alarm unit 401, the power supply opens the circuit unit 402 and the fault locating unit 403, the alarm unit 401 includes the buzzer and pilot lamp, report to the police through the sound that the buzzer sends out and color of the pilot lamp, the emergency stop module 5 includes the automatic pause unit 501, the automatic pause unit 501 can receive a pause signal sent by the programmable logic controller 3 to pause the whole system in time, and also comprises an emergency pause button 502, and the manual control of the emergency pause button 502 can realize the emergency pause of the whole system.
A detection method of a Programmable Logic Controller (PLC), the method comprising the following steps:
s1: data acquisition equipment in the data acquisition module 1 acquires data and transmits the data to the data processing module 2;
s2: the data processing module 2 processes the data, normalizes the data using different protocols into data under the same protocol, and transmits the data to the programmable logic controller 3;
s3: the programmable logic controller 3 processes the transmitted information according to an internally set program logic, further controls the specific operation of related equipment, and simultaneously transmits the information to the fault detection module 4 and the emergency stop module 5;
s4: the fault detection module 4 and the emergency stop module 5 analyze and filter the information, the fault detection module 4 controls the alarm unit 401, the power supply circuit breaking unit 402 and the fault positioning unit 403, and the emergency stop module 5 controls the automatic suspension unit 501;
the fault detection module 4 controls the alarm unit 401 to determine whether to alarm according to the transmitted information content, the fault detection module 4 controls the power supply breaking unit 402 to determine whether to short circuit or abnormal condition of short circuit according to the transmitted information content in step S4, and the fault location unit 403 determines the position of fault according to the transmitted information content in step S4 and then displays the information.
The emergency stop module 5 controls the automatic pause unit 501 to determine whether an emergency situation occurs according to the content of the transmitted information, and the automatic pause unit 501 controls the pause of the whole system.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (8)

1. The utility model provides a programmable logic controller detecting system, includes data acquisition module (1), data processing module (2), programmable logic controller (3), fault detection module (4) and emergency stop module (5), its characterized in that: the data acquisition module (1) comprises a plurality of data acquisition devices, each data acquisition device comprises different sensors and measuring instruments, the sensors and the measuring instruments are used for detecting actual information of products and transmitting the actual information to the data processing module (2), the data processing module (2) is used for receiving the actual information of the products acquired by the data acquisition module (1), protocol analysis units are arranged in the data acquisition devices, communication protocols used by different devices are different, the protocol analysis units are used for normalizing the communication protocols and transmitting the normalized communication protocols to the programmable logic controller (3) after processing, the programmable logic controller (3) can process transmitted data by programming operation in the programmable logic controller, further control the devices to perform related operation and simultaneously transmit the information to the fault detection module (4) and the emergency stop module (5), the fault detection module (4) comprises an alarm unit (401), a power supply circuit breaking unit (402) and a fault positioning unit (403), the emergency stop module (5) comprises an automatic pause unit (501), and the automatic pause unit (501) can receive a pause signal sent by the programmable logic controller (3) and pause the whole system in time.
2. The plc detection system of claim 1, wherein: the sensors in the sensor module (1) are digital sensors for converting measured non-electrical quantities into digital output signals.
3. The plc detection system of claim 1, wherein: the sensors in the sensor module (1) comprise pressure-sensitive sensors, position sensors, energy consumption sensors and temperature-sensitive sensors.
4. The plc detection system of claim 1, wherein: the emergency stop module (5) comprises an emergency pause button (502), and the emergency pause button (502) can be manually controlled to realize the emergency pause of the whole system.
5. The plc detection system of claim 1, wherein: the alarm unit (401) comprises a buzzer and an indicator light, and alarms through the sound emitted by the buzzer and the color of the indicator light.
6. A detection method of a detection system of a plc according to any one of claims 1 to 5, wherein: the method comprises the following steps:
s1: data acquisition equipment in the data acquisition module (1) acquires data and transmits the data to the data processing module (2);
s2: the data processing module (2) processes the data, normalizes the data using different protocols into data under the same protocol and transmits the data to the programmable logic controller (3);
s3: the programmable logic controller (3) processes the transmitted information according to an internally set program logic, further controls the specific operation of related equipment, and simultaneously transmits the information to the fault detection module (4) and the emergency stop module (5);
s4: the information is analyzed and filtered by a fault detection module (4) and an emergency stop module (5), the fault detection module (4) controls an alarm unit (401), a power supply circuit breaking unit (402) and a fault positioning unit (403), and the emergency stop module (5) controls an automatic pause unit (501).
7. A detection method as claimed in claim 6, wherein: in step S4, the fault detection module (4) controls the alarm unit (401) to determine whether to alarm according to the transmitted information content, in step S4, the fault detection module (4) controls the power supply disconnection unit (402) to determine whether to generate an abnormal condition of short circuit and disconnection according to the transmitted information content, so as to disconnect the power supply to the abnormal component, in step S4, the fault location unit (403) determines the position of the fault according to the transmitted information content, and then displays the information.
8. A detection method as claimed in claim 6, wherein: the emergency stop module (5) controls the automatic pause unit (501) to judge whether an emergency situation occurs according to the transmitted information content, and the automatic pause unit (501) controls the pause of the whole system.
CN201911390098.5A 2019-12-30 2019-12-30 Programmable logic controller detection system and method Pending CN110989488A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113721677A (en) * 2021-08-12 2021-11-30 辽宁海神联盛制药有限公司 Automatic alarm control system for pressure container
CN115145217A (en) * 2022-06-20 2022-10-04 中国第一汽车股份有限公司 Oil filter screen state real-time detection method, system, equipment, storage medium and automobile
CN115368009A (en) * 2022-09-15 2022-11-22 江苏欧联智能科技有限公司 Optical fiber quality management system and management method

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CN103217921A (en) * 2013-05-03 2013-07-24 济钢集团有限公司 Start-stop control device of relay-contact-type control electrical equipment
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CN106444623A (en) * 2016-12-26 2017-02-22 李会鹏 Circulating detection system for combustion heater of Programmable Logic Controller
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CN208705690U (en) * 2018-06-13 2019-04-05 广东海沃森科创自动化有限公司 A kind of instrument and meter for automation storing record and control alarm
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CN101013310A (en) * 2007-01-15 2007-08-08 大连光洋科技工程有限公司 Buss-type full digital servo-driver
CN102262401A (en) * 2010-05-31 2011-11-30 北京德尔福万源发动机管理系统有限公司 Industrial production line monitoring system
CN103217921A (en) * 2013-05-03 2013-07-24 济钢集团有限公司 Start-stop control device of relay-contact-type control electrical equipment
CN103774717A (en) * 2014-01-25 2014-05-07 富阳博进机械制造有限公司 Electric controller for PLC (Programmable Logic Controller) unit of water supply system
CN106444623A (en) * 2016-12-26 2017-02-22 李会鹏 Circulating detection system for combustion heater of Programmable Logic Controller
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113721677A (en) * 2021-08-12 2021-11-30 辽宁海神联盛制药有限公司 Automatic alarm control system for pressure container
CN115145217A (en) * 2022-06-20 2022-10-04 中国第一汽车股份有限公司 Oil filter screen state real-time detection method, system, equipment, storage medium and automobile
CN115368009A (en) * 2022-09-15 2022-11-22 江苏欧联智能科技有限公司 Optical fiber quality management system and management method

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