CN210804047U - Variable frequency control system and ship control system - Google Patents
Variable frequency control system and ship control system Download PDFInfo
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- CN210804047U CN210804047U CN201921973545.5U CN201921973545U CN210804047U CN 210804047 U CN210804047 U CN 210804047U CN 201921973545 U CN201921973545 U CN 201921973545U CN 210804047 U CN210804047 U CN 210804047U
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Abstract
The utility model provides a frequency conversion control system and a ship control system, which relate to the technical field of ship frequency conversion control systems, wherein the frequency conversion control system comprises a plurality of groups of controlled objects used for controlling ships, and each group of controlled objects comprises at least one frequency conversion device and at least one acquisition module; the system comprises at least one upper computer, an Ethernet management module, a protocol conversion module, a field bus module and a frequency conversion control module; the Ethernet management module is connected with the protocol conversion module; the protocol conversion module is connected with the field bus module; the field bus module is connected with a plurality of variable frequency control modules, and each variable frequency control module is connected with a group of controlled objects; the upper computers are respectively connected to the Ethernet management module; the utility model discloses can realize the information sharing between each frequency conversion equipment, scalability is good, and the reliability is high.
Description
Technical Field
The utility model belongs to the technical field of boats and ships frequency conversion control system technique and specifically relates to a frequency conversion control system and boats and ships control system are related to.
Background
The application of the ship up-conversion control system is more and more, the control objects are wider and wider, and the conventional cooling sea water pump, the low-temperature fresh water pump, the engine room fan, the air conditioning compressor, the anchor winch and the like are adopted, so that the aim of saving energy as much as possible is fulfilled.
At present, a common control means is single-machine single-control, but the control mode has poor integration level and almost no information interaction capability, complete synchronization is difficult to realize when multi-machine cooperative control is needed, the comprehensive control effect is poor, variable signals are difficult to share due to a one-to-one access mode of the sensor, the utilization rate of signal resources is low, and the cost of the sensor is high.
In addition, there are also some relatively integrated frequency conversion control systems, and such integrated systems generally have a central control cabinet, which accesses all sensor signals into a centralized processing and outputs control signals to the frequency conversion devices or valve controllers of each control object. The frequency conversion control system is often too centralized to cause inflexible control, and frequency conversion equipment among central control cabinets cannot be cooperatively controlled, so that the line difference can be expanded.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frequency conversion control system and boats and ships control system can realize the information sharing between each frequency conversion equipment, and scalability is good, and the reliability is high.
In a first aspect, the present invention provides a frequency conversion control system for controlling a plurality of groups of controlled objects in a ship, wherein each group of controlled objects comprises at least one frequency conversion device and at least one collection module; the system comprises at least one upper computer, an Ethernet management module, a protocol conversion module, a field bus module and a frequency conversion control module;
the Ethernet management module is connected with the protocol conversion module; the protocol conversion module is connected with the field bus module; the field bus module is connected with a plurality of variable frequency control modules, and each variable frequency control module is connected with a group of controlled objects; the upper computers are respectively connected to the Ethernet management module;
the upper computer is used for receiving feedback information sent by the Ethernet management module and sending first control information to the Ethernet management module;
the Ethernet management module is used for sending first control information to the protocol conversion module, receiving feedback information sent by the protocol conversion module and sharing the feedback information to at least one upper computer;
the protocol conversion module is used for realizing protocol conversion of communication data between the Ethernet management module and the field bus module; the communication data comprises feedback information and first control information;
the field bus module is used for receiving the feedback information sent by the frequency conversion control module, sending the feedback information to the protocol conversion module and sending first control information to the corresponding frequency conversion control module;
the frequency conversion control module is used for receiving first control information sent by the field bus module and sending the first control information to a corresponding controlled object; and sending feedback information received from the controlled object to the fieldbus module.
In an optional embodiment, the ethernet management module is a redundant ethernet structure, the protocol conversion module is a redundant protocol converter, and the fieldbus module is a redundant fieldbus structure.
In an optional embodiment, the fieldbus module is further configured to share feedback information to each variable frequency control module.
In an optional embodiment, the frequency conversion control module includes a central processing unit, an I/O module and an interface module, and the I/O module and the interface module are respectively connected to the central processing unit; the I/O module is respectively connected with the frequency conversion equipment and the acquisition module; the interface module is connected with the field bus module.
In an optional implementation manner, the frequency conversion control module further includes a touch screen, and the touch screen is connected with the central processing unit.
In an optional embodiment, the fieldbus module is a CAN fieldbus, and the protocol conversion module is configured to implement conversion between a CAN and an ethernet.
In an optional embodiment, the first control information includes automatic control information generated by the upper computer according to the feedback information and manual control information input to the upper computer by a user.
In an optional implementation manner, the frequency conversion control module is further configured to generate second control information according to the received feedback information, and send the second control information to a corresponding controlled object.
In an optional implementation manner, the variable frequency control module further includes a power module and a buzzer, and the power module and the buzzer are respectively connected with the central processing unit.
In a second aspect, the utility model provides a pair of ship control system, including above-mentioned arbitrary variable frequency control system, first system and second system respectively with variable frequency control system's variable frequency control module connects.
The utility model provides a frequency conversion control system and ship control system, be equipped with ethernet management module, protocol conversion module, the three-layer network framework of field bus module, realize sharing information to the host computer through ethernet management module, realize the protocol conversion between field bus module and the ethernet management module through protocol conversion module, realize the information sharing between the frequency conversion control module through the field bus module, each frequency conversion control module can also follow the first control information that protocol conversion module sent simultaneously, ethernet management module still shares the feedback information of frequency conversion control module feedback to each host computer, the utility model discloses can realize the information sharing between each frequency conversion equipment, scalability is good, the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a frequency conversion control system provided by an embodiment of the present invention;
fig. 2 is a system schematic diagram of a frequency conversion control module of the frequency conversion control system according to the embodiment of the present invention;
fig. 3 is a schematic diagram of a ship control system according to an embodiment of the present invention;
fig. 4 is another schematic diagram of a ship control system according to an embodiment of the present invention.
Icon: 10-upper computers 1 to Q; 11-Ethernet management module; 12-a protocol conversion module; 13-a field bus module; 14-variable frequency control modules 1 to n; 15-frequency conversion equipment 1 to n; 16-collection module 1n to nm; 17-motors 1 to n; 31-a first system; 32-a variable frequency control system; 33-second system.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
At present, a common control means is a single-machine single-control system, that is, an independent variable-frequency control system is adopted for each control object. The single system has strong pertinence, clear control logic, easy realization and low unit price, and is suitable for ships with fewer frequency conversion control objects. The single control cabinet is not large in size and can be arranged according to the position of the control object. However, the single-machine single control system has poor integration level, almost no information interaction capability, difficult complete synchronization when multi-machine cooperative control is needed, poor comprehensive control effect, low signal resource utilization rate and high sensor cost due to the difficulty in sharing variable signals in a one-to-one access mode of the sensor.
In addition, a plurality of relatively integrated variable frequency control systems are also arranged, and a plurality of variable frequency control subsystems on the ship can be integrated to achieve the aim of centralized control. The system can share signal resources, and the subsystems can be cooperatively controlled, so that the system is suitable for ships with more frequency conversion control objects and stronger association among the subsystems. The integrated system generally comprises a central control cabinet, all sensor signals are connected into the central control cabinet for centralized processing, and then control signals are output to frequency conversion equipment or valve controllers of all control objects. However, the integrated frequency conversion control system is often too centralized to cause inflexible control, and is expensive due to high integration level, and once the equipment is damaged, the whole system needs to be replaced, so that the maintenance cost is high. Meanwhile, the central control cabinet is generally large in size and not beneficial to cabin arrangement.
In addition, the two frequency conversion control systems have no redundancy and poor system reliability.
Based on this, the utility model provides a frequency conversion control system, method and electronic equipment can realize the information sharing between each frequency conversion equipment, and the reliability is high, and scalability is good, and control is nimble, low cost, small in size, the maintenance of being convenient for.
Referring to fig. 1, a frequency conversion control system is used for controlling a plurality of groups of controlled objects in a ship, wherein each group of controlled objects comprises at least one frequency conversion device 15 and at least one acquisition module 16; the system comprises at least one upper computer 10, an Ethernet management module 11, a protocol conversion module 12, a field bus module 13 and a frequency conversion control module 14;
the Ethernet management module 11 is connected with the protocol conversion module 12; the protocol conversion module 12 is connected with the field bus module 13; the field bus module 13 is connected with a plurality of variable frequency control modules 14, and each variable frequency control module 14 is connected with a group of controlled objects; the upper computers 10 are respectively connected to the Ethernet management module 11;
the upper computer 10 is configured to receive feedback information sent by the ethernet management module 11, and send first control information to the ethernet management module 11;
the ethernet management module 11 is configured to send first control information to the protocol conversion module 12, receive feedback information sent by the protocol conversion module 12, and share the feedback information to at least one upper computer 10;
the protocol conversion module 12 is configured to implement protocol conversion of communication data between the ethernet management module 11 and the field bus module 13; the communication data comprises feedback information and first control information;
the field bus module 13 is configured to receive feedback information sent by the frequency conversion control module 14, send the feedback information to the protocol conversion module 12, and send first control information to the corresponding frequency conversion control module 14;
the frequency conversion control module 14 is configured to receive the first control information sent by the field bus module 13 and send the first control information to a corresponding controlled object; and transmits the feedback information received from the controlled object to the fieldbus module 13.
Specifically, as shown in fig. 1, the controlled objects are grouped into n groups nearby, each group of controlled objects includes one frequency conversion device 15 and m sensor controlled objects, each frequency conversion device 15 controls one motor 17, that is, n frequency conversion devices 15 control n motors 17. Accordingly, the variable frequency control module 14 sets n sets. The frequency conversion device 15 may be a cooling sea water pump, a low-temperature fresh water pump, a cabin fan, an air conditioning compressor, an anchor winch, and the collection module 16 is typically a sensor, and may be one or more of a temperature sensor, a humidity sensor, and a pressure sensor (tension sensor), for example. And, the sensor signal that the sensor gathered is sent to the frequency conversion control module 14 as the variable to carry out frequency conversion control to the frequency conversion equipment 15. In this embodiment, each variable frequency control module 14 works independently, and the variable frequency control module 14 and each controlled device connected thereto are regarded as one unit, so that one unit fails without affecting the work of other units, and the units do not interfere with each other.
In this embodiment, all data on the fieldbus module 13 is uploaded to the ethernet management module 11 for unified management and storage. The Q-station upper computer 10 or other systems may be connected to the ethernet management module 11, and may implement the network management of the platform and the display, setting and control of various information according to different authorities.
In addition, all the frequency conversion control modules 14 are installed near the controlled objects respectively, and are connected with the frequency conversion devices 15, the acquisition modules 16 and the like of the controlled objects downwards, so that the cable length is short, and meanwhile, the units are connected through the bus, and can be sequentially connected with each other nearby to form a net. The cables of the two field buses are mainly laid on the ship, so that compared with the star connection of the conventional centralized control system (each signal cable of each controlled object is laid on the centralized control cabinet), the connection mode of the embodiment can save the signal cables and save the cost.
Optionally, the ethernet management module 11, the protocol conversion module 12, and the field bus module 13 all have redundancy.
Specifically, the present embodiment forms a three-layer network architecture through the ethernet management module 11, the protocol conversion module 12, and the field bus module 13; the protocol conversion layer in the middle layer connects the Ethernet management layer in the upper layer and the CAN field bus layer in the bottom layer tightly, so that interconnection and intercommunication are realized, each layer has redundancy, and the reliability of the platform is greatly improved. The structure CAN exert the advantages of real-time performance, anti-interference performance and the like of the CAN bus, also exerts the openness and sharing performance of the Ethernet, has strong expansion capability in both a field layer and a management layer, and is particularly suitable for ships with rich frequency conversion control objects.
In addition, a non-redundant connection mode can be selected for a ship with low redundancy requirement, the Ethernet management module 11 in the figure 1 is changed into a single wire, and the field bus module 13 is changed into a single wire.
Optionally, the fieldbus module 13 is further configured to share feedback information to each of the variable frequency control modules 14.
Specifically, the frequency conversion control module 14 and each controlled device connected thereto are regarded as one unit, and then data sharing can be realized among the units through the fieldbus module 13.
Optionally, the frequency conversion control module 14 includes a central processing unit, an I/O module and an interface module, and the I/O module and the interface module are respectively connected to the central processing unit; the I/O module is respectively connected with at least one frequency conversion device 15 and at least one acquisition module 16; the interface module is connected to the field bus module 13.
Specifically, in this embodiment, the upper computer 10, the frequency conversion control module 14, and the protocol conversion module 12 all have unique address codes, each frequency conversion control module 14 includes a central processing unit, an I/O module, and an interface module, as shown in fig. 2, each acquisition module 16 is connected to the I/O module, for example, the sensor PT100, the sensor that sends 4 to 20mA current, and the feedback signal that sends 4 to 20mA current, and the I/O module sends a control signal of 4 to 20mA to the controlled device.
The interface module is connected with the CAN bus, and also receives or sends standard signals through the RS485/422 to realize the connection with other systems on the ship.
The central processing unit is embedded with control logic, can acquire various associated sensor signals through the I/O module to independently realize frequency conversion control, and outputs 4-20 mA standard signals to a controlled object, and carries out control instruction adjustment according to feedback information.
Optionally, the frequency conversion control module 14 further includes a touch screen, and the touch screen is connected to the central processing unit.
Specifically, the frequency conversion control module 14 is further provided with an HMI touch screen, which can realize local display, setting and control.
Optionally, the fieldbus module 13 is a CAN fieldbus, and the protocol conversion module 12 is configured to implement conversion between CAN and ethernet.
Specifically, in this embodiment, the ethernet management module 11 and the fieldbus module 13 are different protocols, and a protocol conversion module 12 is required to convert the communication protocols, so that the upper layer and the lower layer are consistent.
Optionally, the first control information includes automatic control information generated by the upper computer 10 according to the feedback information and manual control information input to the upper computer 10 by a user.
Specifically, the upper computer 10 may automatically generate first control information according to the feedback information, and send the first control information to the variable frequency control module 14, and may also receive control information manually input by a user, and send the control information to the variable frequency control module 14.
Optionally, the frequency conversion control module 14 is further configured to generate second control information according to the received feedback information, and send the second control information to a corresponding controlled object.
Specifically, the frequency conversion control module 14 may also implement automatic control and automatic adjustment according to the feedback information.
The embodiment is based on a three-layer hierarchical network architecture of upper-layer Ethernet, bottom-layer redundant CAN field bus and intermediate network protocol conversion, and has high reliability and easy expansion. The whole variable frequency control module 14 is connected with each other through the field bus module 13 while being dispersed, the field variable frequency control module 14 and the related signals can be connected nearby, and signal cables are saved. The frequency conversion control module 14 of this embodiment can also implement frequency conversion control alone.
The frequency conversion control platform is constructed by adopting a three-layer network architecture and a distributed frequency conversion control unit, the reliability is high, the expansion is easy, variable signals can be shared, the cooperative control of various frequency conversion control objects on a ship can be realized, the applicability is wide, and the more frequency conversion control objects integrated by the embodiment, the more the cost can be reduced.
As shown in fig. 3, the present invention provides a ship control system, which includes the above-mentioned frequency conversion control system 32, the first system 31 and the second system 33; the first system 31 and the second system 33 are respectively connected with a variable frequency control module of the variable frequency control system.
Specifically, as shown in fig. 4, the first system 31 and the second system 33 are respectively connected to an interface module of the frequency conversion control module, and the connection mode may be RS485 or RS 422.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A frequency conversion control system is characterized by being used for controlling a plurality of groups of controlled objects in a ship, wherein each group of controlled objects comprises at least one frequency conversion device and at least one acquisition module; the system comprises at least one upper computer, an Ethernet management module, a protocol conversion module, a field bus module and a frequency conversion control module;
the Ethernet management module is connected with the protocol conversion module; the protocol conversion module is connected with the field bus module; the field bus module is connected with a plurality of variable frequency control modules, and each variable frequency control module is connected with a group of controlled objects; the upper computers are respectively connected to the Ethernet management module;
the upper computer is used for receiving feedback information sent by the Ethernet management module and sending first control information to the Ethernet management module;
the Ethernet management module is used for sending first control information to the protocol conversion module, receiving feedback information sent by the protocol conversion module and sharing the feedback information to at least one upper computer;
the protocol conversion module is used for realizing protocol conversion of communication data between the Ethernet management module and the field bus module; the communication data comprises feedback information and first control information;
the field bus module is used for receiving the feedback information sent by the frequency conversion control module, sending the feedback information to the protocol conversion module and sending first control information to the corresponding frequency conversion control module;
the frequency conversion control module is used for receiving first control information sent by the field bus module and sending the first control information to a corresponding controlled object; and sending feedback information received from the controlled object to the fieldbus module.
2. The variable frequency control system according to claim 1, wherein the ethernet management module is a redundant ethernet structure, the protocol conversion module is a redundant protocol converter, and the fieldbus module is a redundant fieldbus structure.
3. The variable frequency control system of claim 1, wherein the fieldbus module is further configured to share feedback information to each variable frequency control module.
4. The variable frequency control system according to claim 1, wherein the variable frequency control module comprises a central processing unit, an I/O module and an interface module, and the I/O module and the interface module are respectively connected with the central processing unit; the I/O module is respectively connected with at least one frequency conversion device and at least one acquisition module; the interface module is connected with the field bus module.
5. The variable frequency control system of claim 4, wherein the variable frequency control module further comprises a touch screen, and the touch screen is connected with the central processor.
6. The variable frequency control system according to claim 1, wherein the fieldbus module is a CAN fieldbus, and the protocol conversion module is configured to implement conversion between CAN and ethernet.
7. The frequency conversion control system according to claim 1, wherein the first control information comprises automatic control information generated by the upper computer according to the feedback information and manual control information input to the upper computer by a user.
8. The frequency conversion control system according to claim 1, wherein the frequency conversion control module is further configured to generate second control information according to the received feedback information, and send the second control information to a corresponding controlled object.
9. The variable frequency control system according to claim 1, wherein the variable frequency control module further comprises a power module and a buzzer, and the power module and the buzzer are respectively connected with the central processing unit.
10. A ship control system, comprising a variable frequency control system according to any one of claims 1 to 9, a first system and a second system, wherein the first system and the second system are respectively connected with a variable frequency control module of the variable frequency control system.
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| CN113531186A (en) * | 2021-06-29 | 2021-10-22 | 中国船舶科学研究中心 | Valve control system capable of splicing floating structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113531186A (en) * | 2021-06-29 | 2021-10-22 | 中国船舶科学研究中心 | Valve control system capable of splicing floating structure |
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