CN102033522B - Control system of sinter plant - Google Patents
Control system of sinter plant Download PDFInfo
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- CN102033522B CN102033522B CN2009101785766A CN200910178576A CN102033522B CN 102033522 B CN102033522 B CN 102033522B CN 2009101785766 A CN2009101785766 A CN 2009101785766A CN 200910178576 A CN200910178576 A CN 200910178576A CN 102033522 B CN102033522 B CN 102033522B
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Abstract
The invention discloses a control system of a sinter plant, comprising a sinter apparatus, a control network, a mobile operation terminal, a control station which is connected with the control network and used for receiving state information of the sinter apparatus and generating an operation instruction for the sinter apparatus, and a remote station which is used for connecting the sinter apparatus into the control network. The remote station comprises a communication unit which is capable of receiving and transmitting a wireless signal of a specific frequency, a control unit and a collection unit; the control unit receives a wireless operation signal, which is sent from the mobile operation terminal and used for operating the sinter apparatus, through the communication unit, converts the wireless operation signal into an operation request signal, transfers the operation request signal to the control station, and receives the operation instruction returned by the control station to operate the sinter apparatus; and the collection unit is used for collecting the state information of the sinter apparatus to transmit the state information to the control station and/or to the mobile operation terminal through the communication unit. The system can simplify the site arrangement, reduce the operation intensity, reduce the fault time and improve the production efficiency.
Description
Technical Field
The invention relates to the field of sintering, in particular to a control system of a sintering plant.
Background
The control mode of the machine-side operating system adopted by the existing sintering plant is as follows: the computer control system carries out centralized monitoring on the equipment of the whole plant, and monitors the production of the whole plant on a human-machine interface (HMI) Operating Station (OS) (operating station) of a main control room. The devices in the process are operated in a linkage mode under the management of the computer system. When the field device is in failure or the device needs to be operated (overhauled or debugged) by a single machine, the operation is realized by an operation box arranged on the field.
Referring to FIG. 1, a diagram of a typical prior art computer control system of a sintering plant is shown.
The computer control system of the existing sintering plant adopts a distributed structure and comprises an operating station OS and a control station CS (control station).
The operating station OS provides a human-machine interface HMI and is mainly responsible for centralized monitoring, data recording, parameter setting, timed disk storage, report printing, alarm prompt recording and the like of field working conditions. And the operating station OS and the control station CS exchange data through a control network.
Taking fig. 1 as an example, the system shown in fig. 1 is provided with n (n is an integer larger than 1) operation stations OS1 to OSn and m (m is an integer larger than 1) control stations CS1 to CSm. Each control station CS is connected to a plurality of remote stations RIO via a field network. Each device in the field needs to be connected to a remote station RIO.
In the prior art, each device arranged on a production site is provided with a corresponding operation box. Each operation box is connected with a remote station RIO corresponding to the equipment, and the remote station RIO is used for realizing instruction exchange with the control station CS.
The description will be made by taking the example shown in FIG. 1. The illustrated operation box 1 is a control operation box corresponding to the device 1. When the device 1 needs to be operated, for example, started, the operation box 1 sends an action request to the control station CS through the remote station RIO by pressing a start/stop button on the operation box 1; and the control station CS performs corresponding operation according to the received action request, returns an execution instruction to the remote station RIO corresponding to the equipment 1 through the remote station RIO according to an operation result, and controls the equipment 1 to operate.
In the control system in the prior art, because the universality of the operation boxes is poor, the operation boxes corresponding to different devices are different. Therefore, each device needs to be equipped with an operation box and should be arranged close to the device. Because the number of sintering field devices is large, the number of corresponding operation boxes is also large. The corresponding control cables and pipelines which need to be arranged in a matching way are huge in quantity.
On the other hand, in the conventional control system, the operation box is large and heavy and needs to be fixedly arranged. On the other hand, the sintering site is generally large-scale equipment, and the fixed operation box causes long fault time, high operation strength and low production efficiency. The description will be given by taking a tape machine as an example. A typical tape machine is generally 20-200 m long, and a corresponding operation box is generally arranged at the head part. When the adhesive tape machine breaks down, the equipment can be stopped before the adhesive tape machine goes to the operation box, so that the failure time is long; when the adhesive tape machine is debugged, an operator needs to frequently go back and forth between the tail and the head of the adhesive tape machine to observe the running state and regulate the running, so that the operation is complicated, and the operation intensity is too high.
Disclosure of Invention
The invention aims to provide a sintering plant control system which can simplify field arrangement, reduce operation intensity, shorten fault time and improve production efficiency.
In order to achieve the purpose of the invention, the invention particularly provides a sintering plant control system which comprises sintering equipment and a control network,
the system also comprises a mobile operation terminal;
the control station is connected with the control network and used for receiving the state information of the sintering equipment and generating the operation instruction of the sintering equipment, and the remote station is used for connecting the sintering equipment into the control network;
the remote station comprises a communication unit, a control unit and an acquisition unit, wherein the communication unit can receive and transmit a wireless signal with a specific frequency; the control unit receives a wireless operation signal which is sent by the mobile operation terminal and used for operating the sintering equipment through the communication unit, converts the wireless operation signal into an operation request signal, forwards the operation request signal to the control station, and receives an operation instruction returned by the control station to operate the sintering equipment; the collecting unit is used for collecting the state information of the sintering equipment and sending the state information to the control station and/or the communication unit and the mobile operation terminal.
Preferably, the control unit includes:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is the wireless operation signal sent by the communication unit; when the information is an operation instruction sent by the control station, sending the information to a second control subunit; when the information is the equipment state information acquired by the acquisition unit, the information is sent to a third control subunit;
the first control subunit is used for converting the wireless operation signal into an operation request signal and forwarding the operation request signal to the control station;
the second control subunit is used for operating the sintering equipment according to the operation instruction;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal through the communication unit.
Preferably, the control unit includes:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is a wireless operation signal representing an operation request signal; when the information is a wireless instruction signal representing an operation instruction, sending the information to a second control subunit; when the information is the equipment state information acquired by the acquisition unit, the information is sent to a third control subunit;
the first control subunit is used for forwarding the wireless operation signal to the control station through the communication unit;
the second control subunit is used for converting the wireless command signal into an operation command to operate the sintering equipment;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal and the control station through the communication unit.
Preferably, the mobile operation terminal further includes:
a login unit enabling an operator to be recognized.
Preferably, the login unit enables different users to have different login rights.
The invention also provides a control system of the sintering plant, which comprises sintering equipment and a control network,
the system also comprises a mobile operation terminal;
the system comprises a control station, an operation station and a remote station, wherein the control station is connected with a control network and used for receiving state information of sintering equipment and generating an operation instruction of the sintering equipment;
the remote station comprises a communication unit, a control unit and an acquisition unit, wherein the communication unit can receive and send wireless signals; the control unit receives a wireless operation signal which is sent by the mobile operation terminal and used for operating the sintering equipment through the communication unit, converts the wireless operation signal into an operation request signal and forwards the operation request signal to the control station, and operates the sintering equipment when receiving an operation instruction returned by the control station and an authorization command sent by the operation station; the collecting unit is used for collecting the state information of the sintering equipment and sending the state information to the control station and/or the communication unit and the mobile operation terminal.
Preferably, the control unit includes:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is the wireless operation signal sent by the communication unit; when the information is an operation instruction sent by the control station, sending the information to a second control subunit; when the information is the equipment state information acquired by the acquisition unit, the information is sent to a third control subunit;
the first control subunit is used for converting the wireless operation signal into an operation request signal and forwarding the operation request signal to the control station;
the authorization command receiving subunit is used for forwarding the authorization command sent by the operating station to the second control subunit after receiving the authorization command;
the second control subunit is used for operating the sintering equipment according to the operation instruction when receiving the operation instruction sent by the identification subunit and the authorization instruction forwarded by the authorization instruction receiving subunit;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal through the communication unit.
Preferably, the control unit includes:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is a wireless operation signal representing an operation request signal; when the information is a wireless instruction signal representing an operation instruction, sending the information to a second control subunit; when the received information is the equipment state information acquired by the acquisition unit, the equipment state information is sent to a third control subunit;
the first control subunit is used for forwarding the wireless operation signal to the control station through the communication unit;
the authorization command receiving subunit is configured to forward the authorization command sent by the operating station to the second control subunit after receiving the authorization command;
the second control subunit is used for converting the wireless instruction signal into an operation instruction to operate the sintering equipment when receiving the wireless instruction signal sent by the identification subunit and the authorization instruction forwarded by the authorization instruction receiving subunit;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal and the control station through the communication unit.
Preferably, the mobile operation terminal further includes:
a login unit enabling an operator to be recognized.
Preferably, the login unit enables different users to have different login rights
The sintering plant control system provided by the embodiment of the invention realizes the operation control of sintering equipment in a wireless signal mode by adopting the mobile operation terminal and the control station capable of receiving and transmitting a wireless signal with a certain specific frequency.
Compared with the prior art, the mobile operation terminal can centralize the operation functions of all devices on site, and only one mobile operation terminal needs to be equipped on a sintering site. Meanwhile, the system of the invention realizes the operation control of the mobile operation terminal on the equipment in a wireless mode, does not need to arrange a large amount of control cables and pipelines on the site, simplifies the site arrangement and saves pipeline resources.
Meanwhile, by adopting the control system, when an operator finds that a certain device has a fault, the device can be immediately stopped through the mobile operation terminal, so that the fault time is greatly shortened, and the production efficiency is favorably improved; when debugging the equipment, operating personnel can adjust while observing equipment running state, has both reduced manipulation strength and has strengthened the accuracy of adjusting.
Drawings
FIG. 1 is a block diagram of a typical prior art computer control system of a sintering plant;
FIG. 2 is a diagram illustrating a control system of a sintering plant according to a first embodiment of the present invention;
FIG. 3 is a diagram of a mobile operation terminal of the system according to the first embodiment of the present invention;
FIG. 4 is a diagram of a remote station architecture for the system according to the first embodiment of the present invention;
FIG. 5 is a block diagram of another embodiment of a remote station of the system according to the first embodiment of the present invention;
FIG. 6 is a diagram illustrating a control system of a sintering plant according to a second embodiment of the present invention;
fig. 7 is a diagram of a mobile operation terminal of the system according to the second embodiment of the present invention;
FIG. 8 is a diagram of a remote station architecture for a system according to a second embodiment of the present invention;
fig. 9 is a block diagram of another embodiment of a remote station of the system according to the second embodiment of the present invention.
Detailed Description
The invention aims to provide a sintering plant control system which can simplify field arrangement, reduce operation intensity, shorten fault time and improve production efficiency.
In order to make the sintering plant control system of the present invention more clear to those skilled in the art, the following detailed description is made with reference to the accompanying drawings.
Referring to fig. 2, a block diagram of a sintering plant control system according to a first embodiment of the present invention is shown.
The system comprises a sintering device 10 and a control network, a mobile operation terminal 20, a control station 30 and a remote station 40. Wherein,
the control station 30 is connected with the control network and is used for receiving the state information of the sintering equipment and generating the operation instruction of the sintering equipment;
the remote station 40 is used to connect the sintering equipment 10 into a control network. The remote station 40 includes a communication unit 401, a control unit 402, and an acquisition unit 403. Wherein,
the communication unit 401, which is capable of receiving and transmitting a certain specific frequency radio signal;
the control unit 402 converts the wireless signal, which is sent by the mobile operation terminal 20 and is used for operating the sintering equipment 10 and received by the communication unit 401, into an operation request signal, forwards the operation request signal to the control station 30, and receives an operation instruction returned by the control station 30 to operate the sintering equipment 10;
the collecting unit 403 is configured to collect status information of the sintering equipment 10 and send the status information to the control station 30 and/or send the status information to the mobile operation terminal 20 through the communication unit 401.
Fig. 3 is a block diagram of a mobile operation terminal of the system according to the first embodiment of the present invention. The mobile operation terminal 20 has a wireless signal transceiving function, generates an operation request signal according to a sintering equipment operation instruction received from an operator, converts the operation request signal into a wireless signal, transmits the wireless signal to the remote station 40, receives the wireless signal which is transmitted by the remote station 40 and represents the state information of the sintering equipment, and stores the wireless signal.
Specifically, the mobile operation terminal 20 integrates the operation functions of all sintering equipment on site, and includes an input unit 201, a wireless signal transceiver unit 202, a storage unit 203, and a frequency modulation unit 204.
The input unit 201 is configured to receive a sintering equipment operation instruction input by an operator, and generate a corresponding operation request signal. Specifically, the input unit 201 may be a control button, an input interface, an input keyboard, or the like. When a certain operation is required to be performed on a certain device on the sintering site, an operator inputs a corresponding operation instruction through the input unit 201. For example, when a motor fails in a field, an operator inputs a command to stop the failed motor through the input unit 201.
The wireless signal transceiver unit 202 is configured to convert the operation request signal generated by the input unit 201 into a wireless signal, send the wireless signal to the remote station 30, receive the wireless signal sent by the remote station 30, convert the wireless signal into sintering equipment state information, and send the sintering equipment state information to the storage unit 203.
The storage unit 203 receives and stores the sintering equipment state information.
It should be noted here that when the operation request is transmitted by wireless signal, it must satisfy: the transmission and reception of the wireless signal can be realized only if the receiving frequency of the device for receiving the wireless signal is completely the same as the transmitting frequency of the device for transmitting the wireless signal.
In the control system of the present invention, the whole site includes many sintering equipments, and when the operation of the sintering equipment is controlled by the mobile operation terminal 10, in principle, only one equipment is allowed to operate at each operation in order to ensure the accuracy of the operation and the safety of the production on site. That is, when the wireless signal transceiver 202 of the mobile operation terminal 20 sends out the operation request signal in the form of a wireless signal, only one remote station is allowed to receive the wireless signal and control the corresponding sintering equipment to operate.
In the system according to the first embodiment of the present invention, to achieve the above object, the following are preset: setting a unique and specific transmitting/receiving frequency for each remote station 40 corresponding to each sintering equipment 40, so that each remote station 40 can only receive/transmit wireless signals with a specific frequency; on the other hand, when the mobile operation terminal 10 transmits/receives a radio signal at a certain frequency, communication can be achieved with only one remote station 40.
Therefore, the mobile operation terminal 20 must further include: a frequency modulation unit 204 for adjusting the transmitting/receiving frequency of the wireless signal transceiving unit 202.
At this time, the wireless signal transceiver 202 is configured to convert the operation request signal generated by the input unit 201 into a wireless signal, transmit the wireless signal to the remote station 40 at a specific frequency, receive the wireless signal transmitted by the remote station 40 at a specific frequency, convert the wireless signal into sintering equipment state information, and transmit the sintering equipment state information to the storage unit 203.
Referring to fig. 4, there is shown a block diagram of a remote station of the system according to the first embodiment of the present invention. The remote station 40 includes a communication unit 401a, a control unit 402a, and an acquisition unit 403 a. Wherein,
the communication unit 401a can receive and transmit a radio signal of a specific frequency.
Specifically, the communication unit 401a receives the wireless operation signal sent by the mobile operation terminal 20 for operating the sintering equipment 10 and sends the wireless operation signal to the control unit 402a, and receives the wireless status signal which is sent by the control unit 402a and represents the status information of the sintering equipment and sends the wireless status signal to the mobile operation terminal 20.
The control unit 402a converts the wireless operation signal, which is sent by the mobile operation terminal 20 and used for operating the sintering equipment 10 and received by the communication unit 401a, into an operation request signal, and forwards the operation request signal to the control station 30, receives an operation instruction returned by the control station 30 to operate the sintering equipment 10, converts the equipment state information acquired by the acquisition unit 403a into a wireless state signal, and sends the wireless state signal to the mobile operation terminal 20 through the communication unit 401 a.
Specifically, the control unit 402a includes: an identification subunit 4021a, a first control subunit 4022a, a second control subunit 4023a, and a third control subunit 4024 a.
The identifying subunit 4021a is configured to identify the received information, and send the received information to the first control subunit 4022a when the received information is the wireless operation signal sent by the communication unit 401 a; when the received information is an operation instruction sent by the control station 30, the operation instruction is sent to the second control subunit 4023 a; when the received information is the device status information acquired by the acquisition unit 403, the information is sent to the third control subunit 4024 a.
The first control subunit 4022a is configured to convert the wireless operation signal into an operation request signal and forward the operation request signal to the control station 30.
The second control subunit 4023a is configured to operate the sintering apparatus 10 according to the operation instruction.
The third control subunit 4024a is configured to convert the device status information into a wireless status signal, and send the wireless status signal to the mobile operation terminal 20 through the communication unit 401 a.
The collecting unit 403a is configured to collect status information of the sintering equipment 10, and send the status information to the control station 30 through the control network, and/or send the status information to the mobile operation terminal 20 through the communication unit 401 a.
The control station 30 is connected to the control network and is configured to receive sintering equipment status information and generate sintering equipment operating instructions.
In the above-mentioned remote station 40 according to the embodiment of the present invention, the remote station 40 and the control station 30 communicate with each other through a control network, and the signal interaction between them is directly realized through the control network. For example, the control unit 402a of the remote station 40 forwards the operation request signal to the control station 30 directly through the control network.
In other embodiments of the present invention, the remote station 40 may also communicate with the control station 30 through a communication unit. Referring to fig. 5, a block diagram of another embodiment of a remote station of the system according to the first embodiment of the present invention is shown.
The remote station 40 includes a communication unit 401b, a control unit 402b, and an acquisition unit 403 b. The communication unit 401b can receive and transmit a radio signal of a specific frequency.
Specifically, the communication unit 401b receives a wireless operation signal indicating an operation request signal sent by the mobile operation terminal 20 and sends the wireless operation signal to the control unit 402b, receives the wireless operation signal returned by the control unit 402b and forwards the wireless operation signal to the control station 30, receives a wireless instruction signal indicating an operation instruction sent by the control station 30 and sends the wireless instruction signal to the control unit 402b, and receives a wireless status signal indicating status information of the sintering equipment sent by the control unit 402b and sends the wireless status signal to the mobile operation terminal 20 and the control station 30.
The control unit 402b forwards the wireless operation signal, which is sent by the mobile operation terminal 20 and used for operating the sintering equipment 10 and received by the communication unit 401b, to the control station 30, receives an operation instruction returned by the control station 30 to operate the sintering equipment 10, converts the equipment state information acquired by the acquisition unit 403b into a wireless state signal, and sends the wireless state signal to the mobile operation terminal 20 and the control station 30 through the communication unit 401 b.
Specifically, the control unit 402b includes: an identification subunit 4021b, a first control subunit 4022b, a second control subunit 4023b, and a third control subunit 4024 b.
The identifying subunit 4021b is configured to identify the received information, and send the received information to the first control subunit 4022b when the received information is a wireless operation signal indicating an operation request signal; when the received information is a wireless instruction signal indicating an operation instruction transmitted by the control station 30, the information is transmitted to the second control subunit 4023 b; when the received information is the device status information acquired by the acquisition unit 403b, the information is sent to the third control subunit 4024 b.
The first control subunit 4022b is configured to forward the wireless operation signal to the control station 30 through the communication unit 401 b.
The second control subunit 4023b is configured to convert the wireless command signal into an operation command for operating the sintering apparatus 10.
The third control subunit 4024b is configured to convert the device status information into a wireless status signal, and send the wireless status signal to the mobile operation terminal 20 and the control station 30 through the communication unit 401 b.
The collecting unit 403b is configured to collect status information of the sintering equipment 10 and send the status information to the control station 30 and/or the mobile operation terminal 20 through the communication unit 401 b.
At this time, correspondingly, the control station 30 includes a wireless communication unit for receiving and transmitting wireless signals to enable communication with the remote station 40.
Specifically, the control station 30 receives the wireless operation signal forwarded by the remote station 40, converts the wireless operation signal into an operation request signal, generates a corresponding operation instruction, converts the operation request signal into a wireless instruction signal, and returns the wireless instruction signal to the remote station 40; the control station 30 receives and stores the wireless status signal representing the equipment status information sent by the remote station, and is used for realizing real-time monitoring of the sintering equipment.
According to the sintering plant control system provided by the embodiment of the invention, the operation control of sintering equipment is realized in a wireless signal mode by adopting the mobile operation terminal and the control station capable of receiving and transmitting a wireless signal with a certain specific frequency. The special receiving frequency is set for each remote station, and the operation request signal is transmitted by the mobile operation terminal at the special frequency corresponding to the sintering equipment to be operated each time, so that the operation of only one field device is controlled in each time, and the control requirement of the sintering plant equipment can be met.
Compared with the prior art, the mobile operation terminal adopted in the system can centralize the operation functions of all sintering equipment on site, and only one mobile operation terminal is required to be equipped for the sintering site. Meanwhile, the system of the invention realizes the operation control of the sintering equipment by the mobile operation terminal in a wireless signal mode, and does not need to arrange a large number of control cables and pipelines on the site, thereby simplifying the site arrangement and saving pipeline resources.
Meanwhile, by adopting the control system, when an operator finds that a certain sintering device has a fault, the device can be immediately stopped through the mobile operation terminal, so that the fault time is greatly shortened, and the production efficiency is favorably improved; when debugging the equipment, operating personnel can adjust while observing equipment running state, has both reduced manipulation strength and has strengthened the accuracy of adjusting.
In the system provided by the first embodiment of the present invention, by setting that the remote station can only receive and transmit a wireless signal of a certain specific frequency, it is possible to implement wireless signal operation on a certain device on the site through the mobile operation terminal at a certain time. In the system according to the second embodiment of the present invention, the receiving/transmitting frequency of the remote station and the receiving/transmitting frequency of the mobile operation terminal are the same, and at this time, as for the wireless operation signal sent by the mobile operation terminal, all the remote stations within the receiving range thereof can receive the wireless operation signal, that is, all the remote stations convert the wireless operation signal into an operation request signal and forward the operation request signal to the control station, and can receive the operation instruction returned by the control station. In this case, in order to ensure that only one piece of equipment operates at a certain time, before the remote station controls the operation of the sintering equipment according to the received operation command, the method further includes: the remote station judges whether the authorization signal is received, and only the remote station receiving the authorization signal can control the equipment to operate according to the operation instruction.
Referring to fig. 6, a block diagram of a sintering plant control system according to a second embodiment of the present invention includes a sintering apparatus 10 and a control network, a mobile operation terminal 20, a control station 30, a remote station 40, and an operation station 50. Wherein,
the operation station 50 and the control station 30 are both connected with a control network; the operation station 50 is used for issuing an authorization command to the corresponding remote station 40; the operation station 50 is connected to the control network and is used for receiving the status information of the sintering equipment and generating the operation instructions of the sintering equipment.
The remote station 40 is used to connect the sintering equipment 10 into a control network. The remote station 40 includes a communication unit 401, a control unit 402, and an acquisition unit 403. Wherein,
the communication unit 401 capable of receiving and transmitting wireless signals;
the control unit 402 converts the wireless signal, which is sent by the mobile operation terminal 20 and used for operating the sintering equipment 10 and received by the communication unit 401, into an operation request signal, forwards the operation request signal to the control station 30, receives an operation instruction returned by the control station 30, and determines to operate the sintering equipment 10 after receiving an authorization command sent by the operation station;
the collecting unit 403 is configured to collect status information of the sintering equipment 10 and send the status information to the control station 30 and/or send the status information to the mobile operation terminal 20 through the communication unit 401.
Fig. 7 is a block diagram of a mobile operation terminal of the system according to the second embodiment of the present invention. The mobile operation terminal 20 has a wireless signal transceiving function, generates an operation request signal according to a sintering equipment operation instruction received from an operator, converts the operation request signal into a wireless signal, transmits the wireless signal to the remote station 40, receives the wireless signal which is transmitted by the remote station 40 and represents the state information of the sintering equipment, and stores the wireless signal.
Specifically, the mobile operation terminal 20 integrates the operation functions of all sintering equipment on site, and includes an input unit 201b, a wireless signal transceiver unit 202b, and a storage unit 203 b.
The input unit 201b is configured to receive a sintering equipment operation instruction input by an operator, and generate a corresponding operation request signal.
The wireless signal transceiver 202b is configured to convert the operation request signal generated by the input unit 201b into a wireless signal, transmit the wireless signal to the remote station 40, receive the wireless signal transmitted by the remote station 40, convert the wireless signal into sintering equipment state information, and transmit the sintering equipment state information to the storage unit 203 b.
The storage unit 203b receives and stores the sintering equipment state information.
Referring to fig. 8, there is shown a diagram of a remote station of the system according to the second embodiment of the present invention. The remote station 40 includes a communication unit 401c, a control unit 402c, and an acquisition unit 403 c. Wherein,
in the remote station of the system according to the second embodiment of the present invention, the communication unit and the acquisition unit are the same as those in the first embodiment, and the difference therebetween is that: the control unit 402c further includes an authorization command receiving subunit, and when receiving the operation instruction returned by the control station 30 to operate the sintering apparatus 10, it is further determined whether the authorization command receiving subunit receives the authorization command issued by the operation station 50.
Specifically, the control unit 402c includes: an identification subunit 4021c, a first control subunit 4022c, a second control subunit 4023c, a third control subunit 4024c, and an authorized command receiving subunit 4025 c.
The identifying subunit 4021c is configured to identify the received information, and send the received information to the first control subunit 4022c when the received information is the wireless operation signal sent by the communication unit 401 c; when the received information is an operation instruction sent by the control station 30, the information is sent to the second control subunit 4023 c; when the received information is the device state information acquired by the acquisition unit 403, the information is sent to the third control subunit 4024 c.
The first control subunit 4022c is configured to convert the wireless operation signal into an operation request signal and forward the operation request signal to the control station 30.
The authorization command receiving subunit 4025c is configured to forward the authorization command sent by the operating station 50 to the second control subunit 4023 c;
the second control subunit 4023c is configured to, after receiving the operation instruction sent by the identification subunit 4021c, determine whether the authorization command forwarded by the authorization command receiving subunit 4025c is received, and if so, operate the sintering apparatus 10 according to the operation instruction.
The third control subunit 4024c is configured to convert the device status information into a wireless status signal, and send the wireless status signal to the mobile operation terminal 20 through the communication unit 401 c.
The collecting unit 403c is configured to collect status information of the sintering equipment 10, and send the status information to the control station 30 through the control network, and/or send the status information to the mobile operation terminal 20 through the communication unit 401 c.
The control station 30 is connected to the control network and is configured to receive sintering equipment status information and generate sintering equipment operating instructions.
Further, in the system according to the second embodiment of the present invention, the remote station 40 and the control station 30 communicate with each other through the control network, and the signal interaction between the remote station 40 and the control station is directly realized through the control network. Preferably, in the system according to the second embodiment of the present invention, the remote station 40 may also implement communication with the control station 30 through a communication unit. Referring to fig. 9, a block diagram of another embodiment of a remote station of the system according to the first embodiment of the present invention is shown.
The difference from the embodiment shown in fig. 7 is that the control unit 402d further includes an authorization command receiving subunit, and when receiving the operation instruction returned by the control station 30 to operate the sintering apparatus 10, it is further determined whether the authorization command receiving subunit receives the authorization command issued by the operation station 50.
The communication unit 401d can receive and transmit a wireless signal.
The control unit 402d includes: an identification subunit 4021d, a first control subunit 4022d, a second control subunit 4023d, a third control subunit 4024d, and an authorized command receiving subunit 4025 d.
The identifying subunit 4021d is configured to identify the received information, and send the received information to the first control subunit 4022d when the received information is a wireless operation signal indicating an operation request signal; when the received information is a wireless instruction signal indicating an operation instruction transmitted by the control station 30, the information is transmitted to the second control subunit 4023 d; when the received information is the device status information acquired by the acquisition unit 403d, the information is sent to the third control subunit 4024 d.
The first control subunit 4022d is configured to forward the wireless operation signal to the control station 30 through the communication unit 401.
The authorization command receiving subunit 4025d is configured to forward the authorization command sent by the operating station 50 to the second control subunit 4023 d;
the second control subunit 4023d is configured to, after receiving the wireless instruction signal sent by the identification subunit 4021d, determine whether the authorization command forwarded by the authorization command receiving subunit 4025d is received, and if so, convert the wireless instruction signal into an operation instruction to operate the sintering apparatus 10.
The third control subunit 4024d is configured to convert the device status information into a wireless status signal, and send the wireless status signal to the mobile operation terminal 20 and the control station 30 through the communication unit 401 d.
The collecting unit 403d is configured to collect status information of the sintering equipment 10 and send the status information to the control station 30 and/or the mobile operation terminal 20 through the communication unit.
At this time, correspondingly, the control station 30 includes a wireless communication unit for receiving and transmitting wireless signals to enable communication with the remote station 40.
In order to achieve the above object, the system according to the second embodiment of the present invention may acquire the authorization signal sent by the operation station in various ways, which is described in detail below.
The first method is as follows: the operator station authorizes actively.
The operation station can carry out centralized monitoring on all on-site equipment, and when the operation station monitors that a certain equipment is in failure and needs to be stopped emergently or needs to be overhauled, the operation station actively issues an authorization command to a remote station connected with the sintering equipment through a control network.
The second method comprises the following steps: the sintering equipment requests authorization.
When finding that a certain device is in fault and needs emergency stop or needs to be overhauled, the device end actively sends an authorization request signal to an operation station, wherein the authorization request signal comprises the device information;
and after the operation station receives the authorization request signal and confirms that the authorization request signal is correct, the operation station sends an authorization signal to a remote station corresponding to the equipment through the control network.
The third method comprises the following steps: the mobile operation terminal requests authorization.
When a certain device is found to have a fault and needs to be stopped emergently or needs to be overhauled, the mobile operation terminal of the operation end sends an authorization request signal to a remote station through a wireless signal, wherein the authorization request signal comprises information of the device.
At this time, the control unit of the remote station receives the wireless signal representing the authorization request, converts the wireless signal into the authorization request, transmits the authorization request to the operation station through the control network, and receives an authorization command returned by the operation station.
And after receiving the authorization request, the operating station issues an authorization command to the remote station.
In the sintering plant control system according to the second embodiment of the present invention, the mobile operation terminal is used to implement the operation control of the field device in the form of a wireless signal. And setting the same transceiving frequency of all the wireless signal transceiving devices, wherein all the remote stations receiving the wireless operation signals at the equipment end can receive the operation instruction of the control station according to the wireless operation signals. In order to ensure that only one field device is controlled to act in each operation, the remote station further judges whether the remote station is authorized or not after receiving the operation instruction, and only the authorized remote station can operate the sintering equipment so as to meet the control requirement of the equipment of the sintering plant.
Compared with the prior art, the mobile operation terminal adopted in the system of the second embodiment of the invention can centralize the operation functions of all devices on site, and only one mobile operation terminal is required to be equipped on a sintering site. Meanwhile, the system of the invention realizes the operation control of the mobile operation terminal on the equipment in a wireless mode, does not need to arrange a large amount of control cables and pipelines on the site, simplifies the site arrangement and saves pipeline resources.
Meanwhile, by adopting the control system, when an operator finds that a certain device has a fault, the device can be immediately stopped through the mobile operation terminal, so that the fault time is greatly shortened, and the production efficiency is favorably improved; when debugging the equipment, operating personnel can adjust while observing equipment running state, has both reduced manipulation strength and has strengthened the accuracy of adjusting.
Preferably, in the system according to the second embodiment of the present invention, before converting the received wireless signal sent by the mobile operation terminal and used for operating the sintering device into the operation request signal and forwarding the operation request signal to the control station, the control unit may further determine whether the authorization command receiving subunit receives the authorization command sent by the operation station, and only the remote station that receives the authorization command forwards the operation request signal to the control station, so as to achieve the purpose of controlling only one sintering device at the same time.
It should be noted that, for the system according to the embodiments of the present invention, the mobile operation terminal may monitor or analyze the state of the field device according to the running state information of the device.
In the prior art, an operator can monitor and analyze the state of equipment only by going to a main control room and passing through an operation station. By adopting the system, an operator can directly monitor and analyze the running state of the field equipment through the mobile operating terminal on a sintering field, and can judge and rapidly process the equipment state in time when an emergency fault occurs, so that the fault time can be greatly shortened, the operating intensity of the operator is reduced, and the field operation is facilitated.
It should be noted that the mobile operation terminal used in the system of the present invention may be a handheld signal generator or a handheld computer. The size, the weight and the like of the mobile operation terminal are suitable for being held by hands, and the mobile operation terminal is easy to protect and maintain. By adopting the mobile operation terminal, the operation equipment on the sintering site is easier to operate and maintain.
Compared with the operation boxes fixedly arranged beside each device in the prior art, the mobile operation terminal can move freely, and has higher use flexibility. Because the field environment of sintering production is very harsh, some equipment is in a high-dust, high-noise or dangerous environment. For the equipment, when the fixed operation platform in the prior art is used for control, an operator needs to be in a very severe production environment, and great harm is caused to the personal safety and the body health of the operator. By adopting the mobile operation terminal, the operator can operate the equipment by signals under the condition of being far away from the equipment only by arranging the communication unit for each remote station, and only the operation terminal is required to be within the wireless signal receiving range of the equipment. Therefore, the personal safety and the body health of the operators can be well ensured.
On the other hand, for the fixed operation platform in the prior art, because the fixed operation platform is in a severe production environment for a long time, the damage rate is high, and the difficulty of maintenance, repair and replacement is high. Moreover, the operating table of many devices is expensive, and the cost of production increases due to the damage of the operating table for maintenance and replacement. Correspondingly, the mobile operation terminal can perform signal operation on equipment in a better production environment, so that the damage rate is low, and the equipment is convenient to maintain, repair and replace. Meanwhile, for the system, only one communication unit is required to be matched with each remote station, and the common knowledge in the field indicates that the price of the communication unit is far lower than that of the equipment operation platform, and the cost for maintaining or updating the communication unit is far lower than that of the equipment operation platform, so that the system can greatly reduce the production cost and is beneficial to improving the production benefit.
It should be noted that the mobile operation terminal of the present invention may further include a rights management module. The authority management module sets different authority levels and operation ranges for different terminal users; and the operation ranges of the users with different permission levels to the mobile operation terminal are different.
The user with high authority level has a wider operation range, and the user with low authority level has a narrower operation range. For example, if the permission level of the sintering plant system engineer is set to be high and the operation range of the sintering plant system engineer is set to be the whole plant, the sintering plant system engineer may operate the field devices of the whole sintering plant through the mobile operation terminal; if the authority level of the raw material process operator is set to be middle and the operation range is the raw material process, the raw material process operator can only operate the equipment within the raw material process range, and the equipment beyond the range cannot operate.
By adopting the mode, misoperation of operators can be avoided, and on-site production safety and equipment safety are ensured.
It should be noted that the mobile operation terminal may further include a user management module. The user management module is used for providing a user name and a user password for each user. When the operator needs to use the mobile operation terminal to operate the equipment, the user management module requires the operator to provide a user name and a user password. And only when the user name and the user password provided by the operator are correct and correct, the mobile operation terminal allows the operator to perform corresponding operation, otherwise, the operator is refused to perform equipment operation. Thus, on-site production safety and equipment safety can be further included.
It should be noted that the sintering plant control system of the present invention may also coexist with an existing control system, and may be considered to set a mobile operation terminal for a required device or add a mobile operation terminal for a required device on the basis of an existing operation platform. Namely, for some field equipment, only a fixed operation box beside the machine can be equipped; some devices can be completely controlled by a mobile operation terminal; and some devices can be matched with a fixed operation box beside the device and can also carry out remote control operation control of the mobile operation terminal. Therefore, different requirements of different equipment on a sintering field can be flexibly met.
The sintering plant control system provided by the invention is described in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A sintering plant control system comprises sintering equipment and a control network, and is characterized in that:
the system also comprises a mobile operation terminal;
the control station is connected with the control network and used for receiving the state information of the sintering equipment and generating the operation instruction of the sintering equipment, and the remote station is used for connecting the sintering equipment into the control network;
the remote station comprises a communication unit, a control unit and an acquisition unit, wherein the communication unit can receive and transmit a wireless signal with a specific frequency; the control unit receives a wireless operation signal which is sent by the mobile operation terminal and used for operating the sintering equipment through the communication unit, converts the wireless operation signal into an operation request signal, forwards the operation request signal to the control station, and receives an operation instruction returned by the control station to operate the sintering equipment; the collecting unit is used for collecting the state information of the sintering equipment and sending the state information to the control station and/or the communication unit and the mobile operation terminal.
2. The system of claim 1, wherein the control unit comprises:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is the wireless operation signal sent by the communication unit; when the information is an operation instruction sent by the control station, sending the information to a second control subunit; when the information is the equipment state information acquired by the acquisition unit, the information is sent to a third control subunit;
the first control subunit is used for converting the wireless operation signal into an operation request signal and forwarding the operation request signal to the control station;
the second control subunit is used for operating the sintering equipment according to the operation instruction;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal through the communication unit.
3. The system of claim 1, wherein the control unit comprises:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is a wireless operation signal representing an operation request signal; when the information is a wireless instruction signal representing an operation instruction, sending the information to a second control subunit; when the information is the equipment state information acquired by the acquisition unit, the information is sent to a third control subunit;
the first control subunit is used for forwarding the wireless operation signal to the control station through the communication unit;
the second control subunit is used for converting the wireless command signal into an operation command to operate the sintering equipment;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal and the control station through the communication unit.
4. The system according to claim 1, wherein the mobile operation terminal further comprises:
a login unit enabling an operator to be recognized.
5. The system of claim 4, wherein the login unit enables different users to have different login rights.
6. A sintering plant control system comprises sintering equipment and a control network, and is characterized in that:
the system also comprises a mobile operation terminal;
the system comprises a control station, an operation station and a remote station, wherein the control station is connected with a control network and used for receiving state information of sintering equipment and generating an operation instruction of the sintering equipment;
the remote station comprises a communication unit, a control unit and an acquisition unit, wherein the communication unit can receive and send wireless signals; the control unit receives a wireless operation signal which is sent by the mobile operation terminal and used for operating the sintering equipment through the communication unit, converts the wireless operation signal into an operation request signal and forwards the operation request signal to the control station, and operates the sintering equipment when receiving an operation instruction returned by the control station and an authorization command sent by the operation station; the collecting unit is used for collecting the state information of the sintering equipment and sending the state information to the control station and/or the communication unit and the mobile operation terminal.
7. The system of claim 6, wherein the control unit comprises:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is the wireless operation signal sent by the communication unit; when the information is an operation instruction sent by the control station, sending the information to a second control subunit; when the information is the equipment state information acquired by the acquisition unit, the information is sent to a third control subunit;
the first control subunit is used for converting the wireless operation signal into an operation request signal and forwarding the operation request signal to the control station;
the authorization command receiving subunit is used for forwarding the authorization command sent by the operating station to the second control subunit after receiving the authorization command;
the second control subunit is used for operating the sintering equipment according to the operation instruction when receiving the operation instruction sent by the identification subunit and the authorization instruction forwarded by the authorization instruction receiving subunit;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal through the communication unit.
8. The system of claim 6, wherein the control unit comprises:
the identification subunit is used for identifying the received information and sending the information to the first control subunit when the information is a wireless operation signal representing an operation request signal; when the information is a wireless instruction signal representing an operation instruction, sending the information to a second control subunit; when the received information is the equipment state information acquired by the acquisition unit, the equipment state information is sent to a third control subunit;
the first control subunit is used for forwarding the wireless operation signal to the control station through the communication unit;
the authorization command receiving subunit is configured to forward the authorization command sent by the operating station to the second control subunit after receiving the authorization command;
the second control subunit is used for converting the wireless instruction signal into an operation instruction to operate the sintering equipment when receiving the wireless instruction signal sent by the identification subunit and the authorization instruction forwarded by the authorization instruction receiving subunit;
and the third control subunit is used for converting the equipment state information into a wireless state signal and sending the wireless state signal to the mobile operation terminal and the control station through the communication unit.
9. The system according to claim 7, wherein the mobile operation terminal further comprises:
a login unit enabling an operator to be recognized.
10. The system of claim 9, wherein the login unit enables different users to have different login rights.
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CN110519744B (en) * | 2019-09-19 | 2020-12-18 | 中建材(合肥)粉体科技装备有限公司 | Emergency protection device and method based on mobile equipment |
CN110928270B (en) * | 2019-11-26 | 2023-11-03 | 张家港宏昌钢板有限公司 | Electric automation equipment fault detection system and method |
CN111599155A (en) * | 2020-06-02 | 2020-08-28 | 深圳墨影科技有限公司 | Emergency stop control system and emergency stop control method |
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