CN216904714U

CN216904714U - Remote centralized control system for stepping motor adjusting device

Info

Publication number: CN216904714U
Application number: CN202123303467.8U
Authority: CN
Inventors: 王祯; 关玲玲; 崔永胜; 齐龙举; 刘巍
Original assignee: Lanzhou Flight Control Co Ltd
Current assignee: Lanzhou Flight Control Co Ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-05
Anticipated expiration: 2031-12-24

Abstract

The utility model provides a remote centralized control system for a stepping motor adjusting device, which comprises: a data processing unit; the fault state indicating unit is connected with the data processing unit; the execution unit is connected with the data processing unit; the power supply conversion unit is connected with the data processing unit; and the remote centralized control unit is connected with the data processing unit, wherein the fault state indicating unit comprises a current output module for current conversion and a nixie tube display screen for displaying the fault state. The control system adopts the arbitrarily adjustable angle constant torque motor driving technology, the highest resolution of the stepping motor reaches 60000 steps/rotation, the control precision of the control system is effectively improved, remote and centralized control can be realized, and the operation and maintenance cost of equipment is reduced. The nixie tube display screen is used as a system running state and fault indicating unit, and the system state and the system fault can be quickly obtained and positioned according to the state code and the fault code.

Description

Remote centralized control system for stepping motor adjusting device

Technical Field

The utility model belongs to the field of pressure parameter adjustment and control of a stepping motor, and particularly relates to a remote centralized control system of a stepping motor adjusting device.

Background

Research on precise control of ultra-low pressure gas pressure is receiving more and more attention from various countries in the world due to the particularity of the application field. The field application environment often requires that such devices have higher control precision, and meanwhile, higher requirements are provided for automation, remote and centralized control of the devices. The existing control system usually adopts a point-to-point control mode, and the control system cannot meet the requirements of field remote and centralized control.

Therefore, a centralized control system is needed.

Disclosure of Invention

The utility model aims to overcome the defects of the existing control system, meet the requirements of remote and centralized control on site while meeting the requirements of control precision, avoid unsafe factors brought to operators by special use environments on site and further reduce the operation and maintenance cost of equipment.

In order to achieve the above object, the present invention provides a remote centralized control system for a stepping motor adjusting device, the control system comprising:

the data processing unit is used for processing data;

the fault state indicating unit is connected with the data processing unit and is used for indicating a fault state;

the execution unit is connected with the data processing unit and used for executing the stepping motor adjusting instruction;

the power supply conversion unit is connected with the data processing unit and is used for providing a working power supply for the control system; and

and the remote centralized control unit is connected with the data processing unit and is used for remote communication, wherein the fault state indicating unit comprises a current output module for current conversion and a nixie tube display screen for displaying the fault state.

The remote centralized control system of the stepping motor adjusting device is also characterized in that the data processing unit comprises a CPU main board, and a data acquisition module and a motor driving module which are respectively connected with the CPU main board.

The remote centralized control system of the stepping motor adjusting device is also characterized in that the current output module is connected with the data acquisition module; the nixie tube display screen is connected with the CPU mainboard and the power supply conversion unit at the same time.

The remote centralized control system for the stepping motor adjusting device is also characterized in that the execution unit comprises a position feedback module and a stepping motor, the position feedback module is connected with the data acquisition module, and the stepping motor is connected with the motor driving module.

The remote centralized control system for the stepping motor adjusting device is also characterized in that the power supply conversion unit comprises an AC/DC power supply module and a DC/DC power supply module connected with the AC/DC power supply module, the AC/DC power supply module is also respectively connected with the motor driving module and the nixie tube display screen, and the DC/DC power supply module is also connected with the CPU mainboard.

The remote centralized control system of the stepping motor adjusting device also has the characteristic that the remote centralized control unit comprises a DCS program control system connected with the CPU main board.

Compared with the prior art, the utility model has the beneficial effects that:

the remote centralized control system of the stepping motor adjusting device provided by the utility model adopts an arbitrarily adjustable angle constant torque motor driving technology, the highest resolution of the stepping motor is up to 60000 steps/rotation, and the control precision of the control system is effectively improved. By adopting the ModbusTcp communication technology and the DCS control system, remote and centralized control can be realized, and the operation and maintenance cost of the equipment is reduced. The nixie tube display screen is used as a system running state and fault indicating unit, and the system state and the system fault can be quickly obtained and positioned according to the state code and the fault code.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described 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: the utility model provides a functional block diagram of a remote centralized control system of a stepping motor adjusting device.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the following embodiments are specifically described in the control system provided by the utility model with reference to the attached drawings.

In the description of the embodiments of the present invention, it should be understood that the terms "central," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are only for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1, there is provided a remote centralized control system for a stepping motor adjusting device, the control system comprising:

a data processing unit 1 for processing data;

the fault state indicating unit 2 is connected with the data processing unit 1 and is used for indicating a fault state;

the execution unit 3 is connected with the data processing unit 1 and is used for executing the adjustment instruction of the stepping motor 12;

the power conversion unit 4 is connected with the data processing unit 1 and used for providing a working power supply for the control system; and

a remote centralized control unit 5 connected with the data processing unit 1 for remote communication,

the fault state indicating unit 2 comprises a current output module 10 for current conversion and a nixie tube display screen 9 for displaying a fault state.

In some embodiments, the data processing unit 1 includes a CPU board 6, and a data acquisition module 7 and a motor driving module 8 respectively connected thereto. The CPU main board 6 mainly realizes the interaction and operation of data from the data acquisition module 7, completes the communication with the motor driving module 8, completes the communication with the nixie tube display screen 9 and completes the communication with the DCS program control system 15; the data acquisition module 7 realizes the signal acquisition and signal output functions of the position feedback module 11; the motor driving module 8 drives the stepping motor 12.

In some embodiments, the current output module 10 is connected with the data acquisition module 7; the nixie tube display screen 9 is connected with the CPU main board 6 and the power supply conversion unit 4 at the same time. The nixie tube display screen 9 receives a communication instruction of the CPU mainboard 6, completes the running state and fault indication of the system of the stepping motor adjusting device, and can quickly acquire the state of the system and locate the system fault according to the displayed state code and fault code; the current output module 10 receives the output signal of the data acquisition module 7, realizes signal conversion and outputs a 4-20mA current signal.

In some embodiments, the execution unit 3 includes a position feedback module 11 and a stepping motor 12, where the position feedback module 11 is connected to the data acquisition module 7, and the stepping motor 12 is connected to the motor driving module 8. The position feedback module 11 outputs discrete magnitude signals to the data acquisition module 7; the stepping motor 12 receives the driving signal of the motor driving module 8 to complete the corresponding movement.

In some embodiments, the power conversion unit 4 includes an AC/DC power module 13 and a DC/DC power module 14 connected thereto, the AC/DC power module 13 is further connected to the motor driving module 8 and the digital tube display screen 9, respectively, and the DC/DC power module 14 is further connected to the CPU board 6. The AC/DC power module 13 realizes AC220V-DC28V voltage conversion and supplies power to the motor driving module 8, the nixie tube display screen 9 and the DC/DC power module 14; the DC/DC power supply module 14 realizes DC28V-DC5V voltage conversion and supplies power for the CPU mainboard 6.

In some embodiments, the remote centralized control unit 5 includes a DCS programming system 15 connected to the CPU board 6. The DCS program control system 15 and the CPU mainboard 6 adopt a ModbusTcp communication protocol to realize the purpose of remote and centralized control.

The use method of the control method provided by the above embodiment is as follows:

1. power is supplied to each functional module through the power conversion unit 4;

2. the CPU mainboard 6 establishes remote connection with the client DCS program control system 15 through a ModbusTcp communication protocol.

3. The CPU main board 6 receives a self-checking instruction of the DCS program control system 15, and after the CPU main board 6 calculates, a corresponding communication instruction is given to the motor driving module 8 to drive the stepping motor 12 to move forward. In the moving process of the stepping motor 12, after the CPU board 6 acquires the positive limit position signal of the position feedback module 11 through the data acquisition module 7, the movement of the stepping motor 12 is stopped and the stepping motor 12 is driven to move in the reverse direction, and after the negative limit position signal of the position feedback module 11 is acquired through the data acquisition module 7, the movement of the stepping motor 12 is stopped. Finally, the limit travel of the stepping motor 12 is calibrated by positive and negative limit position signals.

4. The system self-checking is completed, and the remote centralized control unit 5 and the CPU mainboard 6 communicate through a plurality of rows, so that the purposes of remote control and monitoring are achieved. The CPU main board 6 receives the instruction of the DCS program control system 15, can drive the stepping motor 12 to move to reach any position in the limit travel range, and the like, and simultaneously: the DCS program control system 15 can acquire the system operating state and fault information through the CPU board 6.

5. The nixie tube display screen 9 can realize the display functions of the running state, the fault and the like of the stepping motor 12 system, and comprises the following functions: communication faults, motor operation abnormal faults, functional module abnormal faults and the like.

6. The current output module 10 can output 4-20mA analog quantity signals, and the signals are used for calibrating the real-time position of the stepping motor 12 through operation.

7. One CPU mainboard 6 is configured with one IP address, and the DCS program control system 15 realizes the remote connection with all the CPU mainboards 6 configured with different IP addresses according to different IP addresses, so as to realize one-to-many, namely: centralized control objective.

8. By adopting a remote and centralized control mode, the DCS program control system 15 can remotely restart or shut down devices corresponding to different CPU boards 6.

The utility model adopts the arbitrarily adjustable angle constant torque motor driving technology, and effectively improves the control precision of the pressure parameter control system; by adopting a ModbusTcp communication protocol and a DCS control system, the remote and centralized control purpose is realized, and the equipment operation and maintenance cost is reduced; the nixie tube display screen is used as a system running state and fault indicating unit, and can quickly acquire a system state and position a system fault according to a state code and a fault code; the system has strong practicability and expansibility, and can be expanded and applied to the field of relevant servo control.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A remote centralized control system for a stepper motor adjustment apparatus, the control system comprising:

the data processing unit is used for processing data;

2. The remote centralized control system for adjustment devices of stepping motors of claim 1, wherein the data processing unit comprises a CPU board and a data acquisition module and a motor driving module respectively connected thereto.

3. The remote centralized control system for a stepping motor adjusting device according to claim 2, wherein the current output module is connected with a data acquisition module; the nixie tube display screen is connected with the CPU mainboard and the power supply conversion unit at the same time.

4. The remote centralized control system for stepping motor adjusting device according to claim 3, wherein the execution unit comprises a position feedback module and a stepping motor, the position feedback module is connected with the data acquisition module, and the stepping motor is connected with the motor driving module.

5. The remote centralized control system for stepping motor adjusting device according to claim 4, wherein the power transforming unit comprises an AC/DC power module and a DC/DC power module connected thereto, the AC/DC power module is further connected to the motor driving module and the nixie tube display screen, respectively, and the DC/DC power module is further connected to the CPU main board.

6. The system of claim 5, wherein the remote centralized control unit comprises a DCS programming system connected to a CPU motherboard.