CN212834132U

CN212834132U - Communication control acquisition board applied to electroplating control system and electroplating control system

Info

Publication number: CN212834132U
Application number: CN202021207860.XU
Authority: CN
Inventors: 张志勇
Original assignee: Shenzhen Yongxu Electric Technology Co ltd
Current assignee: Shenzhen Yongxu Electric Technology Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-30
Anticipated expiration: 2030-06-28

Abstract

A communication control acquisition board applied to an electroplating control system and the electroplating control system are disclosed, wherein the acquisition board comprises a power supply unit, a digital input isolation unit, a digital output isolation unit, an analog acquisition unit, an MCU (microprogrammed control unit) processor unit and a communication interface unit; the power supply unit converts external commercial power into a low-voltage power supply; the digital quantity input isolation unit provides a digital quantity detection signal for the MCU processor unit; the digital quantity output isolation unit drives an execution unit on the station site to work according to a driving signal sent by the MCU processor unit; the analog quantity acquisition unit is responsible for receiving an external analog quantity signal; the communication interface unit is responsible for exchanging signals with an upper computer; and the MCU processor unit coordinates all the units to work coordinately. The utility model has the advantages of can carry out signal acquisition and field control electroplating device on the spot to and utilize serial communication to realize on-the-spot multimachine networking control, it is more to be particularly suitable for the station, and the on-the-spot control device is on-the-spot with the many complicated industrial control of signal check point, if electroplate the trade.

Description

Communication control acquisition board applied to electroplating control system and electroplating control system

Technical Field

The utility model relates to a communication control gathers board, especially a be applied to electroplating control system's communication control and gather board and electroplating control system.

Background

In the electroplating production process, a whole set of complex flow is involved, in order to meet the requirements of the production process, various electrical or mechanical equipment needing to be monitored and controlled are arranged at each electroplating link station, in the prior art, in order to achieve the purpose of performing centralized management and control on various field equipment according to the control requirements, power lines, signal lines and the like of various electrical and mechanical equipment distributed at different stations are generally required to be uniformly pulled into an electrical control cabinet of a control room through a wiring groove (see figure 5), a plurality of relay switches are controlled to control the field equipment through a PLC upper computer in an electrical cabinet, parameters of various field equipment such as temperature, pressure, switches and other signals are detected at the same time, the problem of complex and difficult field wiring exists in the mode of the prior art, the distance between an electroplating field and a central control room is far, and the number of field control and detection equipment is large, need all control and check out test set's power and control line, the switch board centralized control is all drawn to the sensing signal line, not only has the realistic problem that the construction is difficult, material cost is high, and the electromagnetic interference problem that leads to power cable because various power cord long distance wirings simultaneously will be more complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide one kind to the society and can carry out the communication control who is applied to electroplating control system who carries out signal acquisition and field control electroplating device and gather board and electroplating control system.

The technical scheme of the utility model is that: the communication control acquisition board applied to the electroplating control system comprises a power supply unit, a digital input isolation unit, a digital output isolation unit, an analog acquisition unit, an MCU (microprogrammed control unit) processor unit and a communication interface unit;

the power supply unit converts external commercial power into a plurality of stable isolated low-voltage power supplies and provides electric energy for the digital input isolation unit, the digital output isolation unit, the analog acquisition unit, the MCU processor unit and the communication interface unit;

the digital quantity input isolation unit is composed of an optical coupling isolation port detection circuit and provides a digital quantity detection signal for the MCU processor unit;

the digital quantity output isolation unit drives an execution unit on the station site to work according to a driving signal sent by the MCU processor unit;

the analog quantity acquisition unit is responsible for receiving an external analog quantity signal, converting the external analog quantity signal into an analog voltage quantity of a nominal parameter which can be detected by an analog input port of the MCU processor unit, and supplying the analog voltage quantity to the MCU processor unit;

the communication interface unit is responsible for a communication interface for exchanging signals with an upper computer, realizes level conversion, and ensures that the received upper computer instruction and the returned data level accord with corresponding communication specifications;

the MCU processor unit consists of a singlechip and a peripheral circuit thereof and is responsible for receiving all input level state information acquired by the digital quantity input isolation unit; receiving the analog quantity voltage of the analog quantity acquisition unit, and sending a driving signal capable of controlling the external equipment to the digital quantity output execution unit through a data instruction received by the communication interface unit so as to drive the external equipment to start and stop; meanwhile, the digital quantity detection signals and the analog voltage quantity which are collected in real time are responded to the upper computer through the communication interface unit to request all data, and the production data collection of the field equipment by the upper computer is realized.

As a modification to the present invention, the power supply unit is a high-frequency switching power supply.

As an improvement to the present invention, the digital input isolation unit has a plurality of independent input detection ports.

As a modification to the present invention, the execution unit is a relay or a thyristor switch.

As a modification of the present invention, the external analog signal may be a temperature acquisition signal, an external voltage signal, an external current signal or an external pressure sensing analog signal.

As right the utility model discloses an it is the improvement, outside analog signal is the signal more than two arbitrary in temperature acquisition signal, external voltage signal, external current signal and the external pressure sensing analog signal.

As an improvement, the communication interface unit is a serial communication interface unit.

The utility model also provides an electroplating control system, includes foretell communication control acquisition board.

The utility model discloses owing to adopted the control acquisition board that has communication function, will all integrate originally on each merit position of electroplating scene is distributed to the partial control acquisition function of the host computer of central control room, realize the data access and the control mode of owner's machine, reduced all kinds of controlgear in the scene and check out test set's long distance wiring work in a large number, from the saving of wire rod cost to having comparatively obvious advantage in the saving of artifical construction cost, brought direct economic benefits.

The utility model discloses can be with the direct switch-on control on the station of a large number of power lines, need not long distance wiring, avoided the produced on-the-spot electromagnetic noise pollution of each power cord, also avoided the space coupling between power line and other sensitive controlgear on-the-spot and the check out test set signal line, cut off the interference source and the conduction way that probably bring harm, be favorable to promoting the on-the-spot production technology quality.

The utility model has the advantages of the degree of integrating is higher, concentrate in the collection board and reach 8 ways detection of more multichannel input digital quantity even more, reach 8 ways output relay control drive even more, and 1 way high accuracy analog input such as extra optional temperature or pressure detects the function, nimble configuration selection on each station, the construction of on-the-spot distribution is simpler, more convenient and fast when the technology change needs to increase or reduce the field device, the follow-up maintenance cost of producing the line has been reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic block diagram of an embodiment of the present invention.

Fig. 2 is a schematic circuit diagram of the digital input isolation unit of fig. 1.

Fig. 3 is a schematic circuit diagram of the digital quantity output isolation unit in fig. 1.

Fig. 4 is a schematic structural diagram of an electroplating control system after the communication control acquisition board of the utility model is adopted.

Fig. 5 is a schematic diagram of a plating control system in the prior art.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply orientations, orientation configurations, and operations that the device or element referred to must have, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. In addition, in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

Referring to fig. 1 to 3, the present invention provides a communication control acquisition board 10 applied to an electroplating control system, which includes a power supply unit 1, a digital input isolation unit 2, a digital output isolation unit 3, an analog acquisition unit 4, an MCU processor unit 5 and a communication interface unit 6;

the power supply unit 1 converts external commercial power into a plurality of stable isolated low-voltage power supplies and provides electric energy for the digital input isolation unit 2, the digital output isolation unit 3, the analog acquisition unit 4, the MCU processor unit 5 and the communication interface unit 6;

the digital quantity input isolation unit 2 is composed of an optical coupling isolation port detection circuit and provides a digital quantity detection signal for the MCU processor unit 5; as shown in fig. 2, the digital input isolation unit 2 is mainly configured to electrically isolate an external digital switch signal by a first optical coupler U1, and the converted digital is sent to an I/O port of the MCU processing unit 5;

the digital quantity output isolation unit 3 drives an execution unit of a station site to work according to a driving signal sent by the MCU processor unit 5; as shown in fig. 3, the digital quantity output isolation unit 3 isolates a control signal of the MCU by a second optocoupler U2 to drive a rear-stage triode Q1, and drives a relay J1 by a triode Q1, wherein the relay J1 outputs a normally open or normally closed switch for controlling the start or stop of the equipment at each external station;

the analog quantity acquisition unit 4 is responsible for receiving an external analog quantity signal, converting the external analog quantity signal into an analog voltage quantity of a nominal parameter which can be detected by an analog input port of the MCU processor unit 5, and supplying the analog voltage quantity to the MCU processor unit 5; in this embodiment, the analog acquisition unit 4 takes a high-precision operational amplifier as a core, and after filtering and voltage clamp protection are performed on external analog, the analog is subjected to proportional conversion by the operational amplifier and then input to the MCU processor unit 5;

the communication interface unit 6 is responsible for a communication interface for exchanging signals with an upper computer, realizes level conversion, and ensures that the received upper computer instruction and the returned data level accord with corresponding communication specifications;

the MCU processor unit 5 consists of a singlechip and peripheral circuits thereof and is responsible for receiving all input level state information acquired by the digital quantity input isolation unit 2; receiving the analog quantity voltage of the analog quantity acquisition unit 4, sending a driving signal capable of controlling the external equipment to the digital quantity output execution unit through a data instruction received by the communication interface unit 6 so as to drive the external equipment to start and stop; meanwhile, the digital quantity detection signals and the analog voltage quantity which are collected in real time respond to all requested data to the upper computer 7 through the communication interface unit 6, and the production data collection of the field device 8 by the upper computer 7 is realized. In this embodiment, the MCU processor unit 5 is composed of a single chip microcomputer or a DSP processor as a core, and the single chip microcomputer in this embodiment may be an ARM single chip microcomputer in the STM32F103 series, and may be composed of corresponding peripheral circuits, such as a crystal oscillator, a reset interface, a program download interface, and the like, which are the core of the entire acquisition board.

Adopt the utility model discloses afterwards, the control and the check out test set of each station of electroplating scene will be nearby according to function grouping integration, all power cords and control line are directly connected at the nearby scene, integrate to the control acquisition board of this invention, the wiring that will originally need long distance is reduced by a wide margin, and some functions of original central control room are independently come out by the device, only need through the lower communication signal line connection of cost between the host computer of the control acquisition board on each station of scene and central control room, the signal line is with low costs, the wiring is simple, there is not strong interference problem outward yet, the host computer is as the host computer, control acquisition board is as the slave computer, realize the function of real-time data access and equipment control between the master computer and the slave computer.

Preferably, the power supply unit 1 is a high-frequency switching power supply, so that power conversion efficiency is improved.

Preferably, the digital input isolation unit 2 has multiple independent input detection ports, in this embodiment, as many as 8 independent input detection ports can be provided, and the number can be increased or decreased according to actual needs.

The digital quantity output isolation unit 3 has multiple independent output isolation ports, in this embodiment, as many as 8 independent output isolation ports can be provided, and the number of the independent output isolation ports can be increased or decreased according to actual needs.

Preferably, the execution unit is a relay or a silicon controlled switch; so as to realize weak current driving strong current and achieve the control purpose of field equipment.

Preferably, the external analog quantity signal is a temperature acquisition signal, an external voltage signal, an external current signal or an external pressure sensing analog quantity signal; the external analog quantity signal is any two or more than two of a temperature acquisition signal, an external voltage signal, an external current signal and an external pressure sensing analog quantity signal.

Preferably, the communication interface unit 6 is a serial communication interface unit, and the serial communication unit is a communication interface responsible for signal exchange with an upper computer, so as to realize level conversion and ensure that the received upper computer instruction and the returned data level conform to corresponding communication specifications. The serial communication interface unit in this embodiment may adopt a 485 serial communication interface.

Referring to fig. 4, an electroplating control system includes foretell communication control acquisition board, can see from fig. 4, the utility model discloses be suitable for a plurality of station, like first station, second station and nth work, represent an electroplating process link or electrolysis trench to manage on every station, have M equipment that need detect and control again on every station, like shock motor, heat pump, circulating pump, temperature probe etc. be applicable to n M huge equipment groups of scale.

Therefore, for the system among the prior art, need with n M power control line and signal detection line cable, in the host computer regulator cubicle of control room is sent to through trough long distance, and the utility model discloses an acquisition board detects at the field control, all power control lines and signal detection line cable homoenergetic among the control system assemble nearby the station at the station, only through a communication signal cable long distance connection to the host computer regulator cubicle of control room between all acquisition boards, under the contrast the utility model discloses obvious practicality that has.

Claims

1. A communication control acquisition board applied to an electroplating control system is characterized by comprising a power supply unit (1), a digital quantity input isolation unit (2), a digital quantity output isolation unit (3), an analog quantity acquisition unit (4), an MCU (microprogrammed control unit) processor unit (5) and a communication interface unit (6);

the power supply unit (1) converts external mains supply into a multi-path stable isolation low-voltage power supply and provides electric energy for the digital input isolation unit (2), the digital output isolation unit (3), the analog acquisition unit (4), the MCU processor unit (5) and the communication interface unit (6);

the digital quantity input isolation unit (2) is composed of an optical coupling isolation port detection circuit and provides a digital quantity detection signal for the MCU processor unit (5);

the digital quantity output isolation unit (3) drives an execution unit on a station site to work according to a driving signal sent by the MCU processor unit (5);

the analog quantity acquisition unit (4) is responsible for receiving an external analog quantity signal, converting the external analog quantity signal into an analog voltage quantity of a nominal parameter which can be detected by an analog input port of the MCU processor unit (5), and supplying the analog voltage quantity to the MCU processor unit (5);

the communication interface unit (6) is responsible for a communication interface for exchanging signals with an upper computer, realizes level conversion, and ensures that the received upper computer instruction and the returned data level accord with corresponding communication specifications;

the MCU processor unit (5) consists of a singlechip and a peripheral circuit thereof and is responsible for receiving all input level state information acquired by the digital quantity input isolation unit (2); receiving the analog quantity voltage of the analog quantity acquisition unit (4), sending a driving signal capable of controlling the external equipment to the digital quantity output execution unit through a data instruction received by the communication interface unit (6) so as to drive the external equipment to start and stop; meanwhile, the digital quantity detection signals and the analog voltage quantity which are collected in real time are responded to the upper computer (7) through the communication interface unit (6) to request all data, and the production data collection of the field equipment by the upper computer (7) is realized.

2. The communication control acquisition board applied to the electroplating control system according to claim 1, wherein the power supply unit (1) is a high-frequency switching power supply.

3. The communication control acquisition board applied to the electroplating control system according to claim 1 or 2, wherein the digital quantity input isolation unit (2) is provided with a plurality of independent input detection ports.

4. The communication control acquisition board applied to the electroplating control system according to claim 1 or 2, wherein the digital output isolation unit (3) is provided with a plurality of independent output isolation ports.

5. The communication control acquisition board applied to the electroplating control system according to claim 1 or 2, wherein the execution unit is a relay or a controllable silicon switch.

6. The communication control acquisition board applied to the electroplating control system according to claim 1 or 2, wherein the external analog quantity signal is a temperature acquisition signal, an external voltage signal, an external current signal or an external pressure sensing analog quantity signal.

7. The communication control acquisition board applied to the electroplating control system according to claim 1 or 2, wherein the external analog quantity signal is any two or more of a temperature acquisition signal, an external voltage signal, an external current signal and an external pressure sensing analog quantity signal.

8. The communication control collection plate applied to the electroplating control system according to claim 1 or 2, wherein the communication interface unit (6) is a serial communication interface unit.

9. An electroplating control system, characterized in that the electroplating control system comprises the communication control acquisition board of any one of claims 1-8.