CN207377780U - A kind of control system of water pump - Google Patents
A kind of control system of water pump Download PDFInfo
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- CN207377780U CN207377780U CN201721113678.6U CN201721113678U CN207377780U CN 207377780 U CN207377780 U CN 207377780U CN 201721113678 U CN201721113678 U CN 201721113678U CN 207377780 U CN207377780 U CN 207377780U
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Abstract
This application discloses a kind of control system of water pump, including N number of interconnection obtains according to the current pressure values perform prediction calculating operation received and sends operating parameter；Control signal is sent according to operating parameter；When the BACnet controllers for receiving permission transform signal conversion rights state；It is connected with N number of BACnet controllers one-to-one corresponding, receive and N number of variable frequency pump unit of operation is adjusted according to control signal；It is connected with N number of BACnet controllers one-to-one corresponding, the real-time status for gathering water supply network obtains and sends N number of sensor of current pressure values.The control system of water pump need not increase special master controller, according to the exchange of the spontaneous carry out permission of default exchanged form between each controller, by default rotation mechanism as master controller, so that each controller mutually undertakes load and pressure, the possibility that significantly reduce operation and maintenance cost, eliminates while lose all water pump controls and state of causing danger.
Description
Technical field
This application involves technical field of automatic control, more particularly to a kind of control system of water pump.
Background technology
With the development of automated control technology, more and more controllers are gradually to automation, integrated or even network
Cluster Development, wherein, it is also constantly bringing forth new ideas for most important water pump control technology in water conservancy and hydropower structure.And converter technique
Appearance change previous water pump control mode again, realize and control parameter is changed by controller control the motor of water pump
Rotating speed so as to the control of water pump more science, rigorous and simpler and reliable.
In the prior art, in order to manage large number of variable frequency pump, it is intended to be separately provided a master controller, the master
Controller is responsible for being controlled from controller all simultaneously, and the master controller of the height centralization of state power is inherently in performance, load energy
It is higher than in power and parameter from controller, once master controller, because various unexpected failures cause abnormal phenomenon, meeting is same
When lose the control of all water pumps to its lower management, cause great economic loss and accident.And it is that it sets spare master
The method of control node can cause cost further to increase.
Therefore, how in the case where additional master controller need not be increased, according to default exchange side between each controller
The exchange of the spontaneous carry out permission of formula realizes rotation as master controller so that each negative from part is undertaken between controller
It carries and the water pump controlling mechanism of pressure is those skilled in the art's urgent problem to be solved.
Utility model content
The purpose of the application is to provide a kind of control system of water pump, need not increase special main controller, each controller it
Between according to the spontaneous carry out permission of default exchanged form exchange, realize rotation as master controller so that each from controller
Between undertake fractional load and pressure, significantly reduce operation and maintenance cost, eliminate while lose the control of all water pumps
It weighs and the possibility for state of causing danger.
In order to solve the above technical problems, the application provides a kind of control system of water pump, including：N number of interconnection, according to connecing
The current pressure values perform prediction calculating operation received obtains operating parameter, and sends the operating parameter；According to the operation
Parameter sends control signal；When the BACnet controllers for receiving permission transform signal conversion rights state；With it is N number of described
BACnet controllers, which correspond, to be connected, and receives and N number of variable frequency pump unit of operation is adjusted according to the control signal；
It is connected with N number of BACnet controllers one-to-one corresponding, the real-time status for gathering water supply network obtains and sends the current pressure
N number of sensor of force value.
Optionally, which further includes：
It is connected with each BACnet controllers, receive and forwards the BACnet routers of presupposed information.
Optionally, which further includes：
It is connected with the BACnet routers, receive controller information and sends the control centre of control information.
Optionally, the sensor is specially pressure sensor.
Optionally, the BACnet routers are specially BAS routers.
Optionally, the variable frequency pump unit is specially high performance vector variable frequency pump unit.
Optionally, the control centre is specially BACnet/IP control centres.
A kind of control system of water pump provided herein, including N number of interconnection, according to the current pressure received
Value perform prediction calculating operation obtains operating parameter, and sends the operating parameter；Control letter is sent according to the operating parameter
Number；When the BACnet controllers for receiving permission transform signal conversion rights state；It is a pair of with N number of BACnet controllers one
It should be connected, receive and N number of variable frequency pump unit of operation is adjusted according to the control signal；It is controlled with N number of BACnet
Device processed, which corresponds, to be connected, and the real-time status for gathering water supply network obtains and sends N number of sensor of the current pressure values.
Obviously, this method need not increase special master controller, spontaneous according to default exchanged form between each controller
The exchange of permission is carried out, realizes rotation as master controller so that each from undertaking fractional load and pressure between controller,
The possibility for significantly reduce operation and maintenance cost, eliminating while lose all water pump controls and state of causing danger.
Description of the drawings
It in order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structure diagram of control system of water pump provided by the embodiments of the present application；
A kind of structure chart of actual controller in a kind of control system of water pump that Fig. 2 is provided by the embodiment of the present application.
Specific embodiment
The core of the application is to provide a kind of control system of water pump, and this method need not increase special master controller, each to control
According to the exchange of the spontaneous carry out permission of default exchanged form between device processed, realize rotation as master controller so that Mei Gecong
Fractional load and pressure are undertaken between controller, operation and maintenance cost is significantly reduced, eliminate while loses all water
Pump the possibility of control.
To make the purpose, technical scheme and advantage of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
All other embodiments obtained without making creative work shall fall in the protection scope of this application.
It please refers to Fig.1, Fig. 1 is a kind of structure diagram of control system of water pump provided by the embodiments of the present application.
The embodiment of the present application provides a kind of control system of water pump, can include：
N number of interconnection obtains operating parameter according to the current pressure values perform prediction calculating operation received, and sends
Operating parameter；Control signal is sent according to operating parameter；When the BACnet controls for receiving permission transform signal conversion rights state
Device 100 processed；
It is connected with N number of BACnet controllers one-to-one corresponding, receive and N number of frequency conversion of operation is adjusted according to control signal
Water pump assembly 200；
It is connected with N number of BACnet controllers one-to-one corresponding, the real-time status for gathering water supply network obtains and sends current pressure
N number of sensor 300 of force value.
Wherein, BACnet controllers can be specific as follows：
It please refers to Fig.2, a kind of actual controller in a kind of control system of water pump that Fig. 2 is provided by the embodiment of the present application
Structure chart.
Specifically be made of processor, button display module, MSTP modules and data input/output module, processor respectively with
Button display module, MSTP modules, data input/output module are connected；MSTP modules are respectively at processor and MSTP subnet phases
Even；Data input/output module respectively with the variable frequency pump unit and pressure sensor phase outside processor and BACnet controllers
Even.
Software section therein, comprising water pump model data library module, application process module, configuration management scheduler module and
Communication process module；Water pump model data library module is used to that water pump operation parameter to be estimated and predicted；Application process module
For calculating and controlling the rotating speed that variable frequency pump is run and the number of units that puts into operation；Configuration management scheduler module is used to configure BACnet controls
The parameter of device and variable frequency pump；Communication process module is realized between each BACnet controllers, BACnet controllers and control centre
Between and BACnet controllers and variable frequency pump between communicate.
When system operates, by the button display module of each BACnet controllers, to each BACnet controllers pair
As the attribute progress parameter configuration of example, the attribute of some of which object can be after example generation in configuration management process
It is configured, can also be determined when generating example.
In the present embodiment, the controller of the BACnet agreements of selection belongs to information processing layer, and major function is to define pair
As model and agreement grammer, the semanteme of interoperability information is explained, and perform corresponding processing procedure.BACnet protocol definitions 35
A service, in this example the BACnet controllers based on control system of water pump using " ReadProperty ",
" ReadPropertyMultiple ", " WriteProperty ", " WritePropertyMultiple ", " Who-has " and " I-
Have ", " Who-is " and " I-am ", " ConfirmedCOVNotification " and
Application layer services such as " ConfirmedEventNotification "；By taking " ReadProperty " as an example, according to BACnet standards
Regulation, " ReadProperty " message APDU coding ASN.1 be defined as follows：
" service-request " be user data part, the context mark that coded portion is needed except each attribute
Note is outer, and others are " Object Identifier " (object identifier), " Property read in attribute service primitive
Identifier " (attribute mark's symbol), " Property Array Index " (attribute array indexing)；
Wherein, a BACnet application service from be generated to transmission must coding Jing Guo following steps：
(1) application layer protocol data cell APDU is encoded；
(2) Network layer Protocol Data unit NPDU is encoded；
(3) data link layer and physical layer protocol data unit coding (MSTP data frames)；
Tables 1 and 2 is refer to, table 1 is BACnet network layers in a kind of control system of water pump provided by the embodiments of the present application
Protocol Data Unit forms table；Data link layer protocol in a kind of control system of water pump that table 2 is provided by the embodiment of the present application
Data cell coding composition table.
1 BACnet Network layer Protocol Datas unit of table forms table
| Version | 1 byte |
| Control | 1 byte |
| DNET | 2 bytes |
| DLEN | 1 byte |
| DADR | Variable byte |
| SNET | 2 bytes |
| SLEN | 1 byte |
| SADR | Variable byte |
| Hop Count | 1 byte |
| Message Type | 1 byte |
| Vendor ID | 2 bytes |
| NUD | N number of byte |
2 data link layer protocol data unit of table coding composition table
Optionally, can also include：
It is connected with each BACnet controllers, receive and forwards the BACnet routers of presupposed information.
Optionally, can also include：
It is connected with BACnet routers, receive controller information and sends the control centre of control information.
Optionally, sensor is specially pressure sensor.
Optionally, BACnet routers are specially BAS routers.
Optionally, variable frequency pump unit is specially high performance vector variable frequency pump unit.
Optionally, control centre is specially BACnet/IP control centres.
The control system of water pump that the technical program can provide, can by BACnet control centres, BACnet routers,
BACnet controllers, variable frequency pump unit, pressure detecting module composition；Wherein, BACnet control centres by BACnet/IP with
BACnet routers are connected, and BACnet routers are connected by BACnet/MSTP subnets with multiple BACnet controllers, each
BACnet controllers are connected by RS485 or digital analogue signal with variable frequency pump unit, variable frequency pump unit and water supply network
It is connected, each BACnet controllers detect the pressure of water supply network by pressure detecting module；Wherein each variable frequency pump unit
It is made of frequency converter and water pump；BACnet controllers are realizing the rotating speed of control variable frequency pump unit and the variable frequency pump unit that puts into operation
Number of units while, pass through BACnet routers and BACnet control centres and carry out data exchange.
Formed according to above system, when system starts, into init state, by each BACnet controllers website and
BACnet routers website is added in MSTP network token logic boxs, and the button for passing through each BACnet controllers shows mould
Block carries out parameter configuration to each BACnet controllers, and distributes main website address.
Wherein, the configuration of object instance, 1 variable frequency pump unit 1 " Device " object instance, 1 are carried out to system
A " Analog Input " object instance, 1 " Analog Output " object instance, 1 " Analog Value " object are real
Example, 1 " Binary Input " object instance, 1 " Binary Output " object instance, 1 " Calendar " object instance
It is represented with 1 " Event Enrollment " object instance；BACnet control centres are configuring each object instance information from the background, and
It is associated with object identifier；
Wherein, by taking " Device " object instance as an example, can be defined using following structure：
Wherein, Device object instances property value setting can be such as table 3.
3 Device object instance attribute value tables of table
When master controller node obtains operating parameter, the attribute of upgating object example, and control according to prediction calculating operation
System instruction is sent to the variable frequency pump unit of each BACnet controllers control, changes in " Analog Output " object instance
The value of " Present_Value " attribute adjusts frequency converter frequency, achievees the purpose that control motor speed.
Its specific control operation process, can include as follows：
When 1 variable frequency pump stable operation under the control of BACnet controllers, and water supply network pressure remained steady, turn
Step 5；
When water consumption increase, when 1 variable frequency pump full speed running cannot guarantee that the pressure stability of pipe network, by variable frequency pump
Power frequency operation is put into, to keep the continuity of pressure, while BACnet controller of the message frame to next website is sent, by this
Platform variable frequency pump puts into operation, and adjusts the frequency converter frequency of this variable frequency pump, until water supply network pressure remained steady, turns
Step 5；
When water consumption continues to increase, and 2 variable frequency pump full speed runnings cannot guarantee that the pressure stability of pipe network, by this two
Platform variable frequency pump puts into power frequency operation, to keep the continuity of pressure, while sends BACnet of the message frame to next website
Controller puts this variable frequency pump into operation, and adjusts the frequency converter frequency of this variable frequency pump, until water supply network pressure
It keeps stablizing, goes to step 5；
When water consumption reduction, 3 water pump operations is not required to keep pressure stabilitys, it is longest to run time to send message frame
BACnet controllers, this variable frequency pump of stopping transport, while the frequency converter frequency of this TV station variable frequency pump is adjusted, until water supply network pressure
Trying hard to keep, it is fixed to keep steady, and goes to step 5；
When water consumption continues to reduce, 2 water pump operations is not required to keep pressure stabilitys, sends message frame to long operational time
BACnet controllers, this variable frequency pump of stopping transport, while adjust the frequency converter frequency of this TV station variable frequency pump, until water supply network
Pressure remained steady goes to step 5；
When website hold token time do not reach setting time or hold token website information and instruction still without
It is sent completely, then goes to step 2, token is otherwise transmitted to next website, and goes to step 2.
Based on above example, a kind of control system of water pump of the application offer need not increase special master controller,
According to the exchange of the spontaneous carry out permission of default exchanged form between each controller, realize rotation as master controller so that every
It is a from fractional load and pressure is undertaken between controller, significantly reduce operation and maintenance cost, eliminate while lose institute
There is the possibility of water pump control.
The control method of water pump provided by the embodiments of the present application is introduced below, the controlling party of water pump described below
Method can correspond reference with above-described control system of water pump.
Technical scheme aims to solve the problem that the control problem of water pump cluster, does not imply that technical scheme can not be real
It applies in single water pump.Although embodiment can be carried out to single water pump, the emphasis of single the technical program is not herein.Therefore,
Following embodiment refers both to tell about the water pump cluster with multiple water pumps.
In the present embodiment, there are multiple water pumps to need to carry out control operation, while corresponding each water pump is both provided with
Controller, controller form a controller node with water pump, can also be called website.In a website, controller has
Basic water pump control function, while the measurement data of sensor transmission can be received.Controller node is as a unit
Corresponding data can be sended and received.
Water pump control method provided in this embodiment can include：
Permission transform signal is received from controller, master controller is converted to by preset order；
Wherein, master controller is the BACnet controllers of high rights state, from the BACnet that controller is low rights state
Controller.
This operation, it is intended to make in the cluster of controller node, keep that there is at least one master controller node, and this
The permission of master controller node can accomplish to be changed with predetermined mode.Therefore, break down when master controller node
When, control authority can be handover in next controller node, so as to which the cluster of entire controller node is not in lose
Go the situation of control.
It should be noted that it is to need to participate in control by the decision-making of a control centre for the control of cluster water pump
Among whole regulation and control.For example, there is the situation of hypertonia in water pipe at one, it will usually spread to the pressure feelings around pipe network
Condition, that is to say, that the problem of hypertonia at one, what is reflected is the pressure condition of pipe network around.Likewise, the pressure at one
Power is excessively high to be alleviated by the water pump of pipe network around, and it is not accomplish to carry out stress reduction only by the water pump at this
's.And water pump control is carried out to pipe network around, it is difficult to realize by each individual controller node, therefore, it is necessary to one
A control centre controls the water pump of each node according to pipe network interior joint feedack.Therefore, for the present embodiment
It selects master controller node in a predetermined order in cluster controller node, is necessary.
Wherein, for master controller node to the permission variation from controller node, become according to default order
Change, be in order to there is continually changing control centre in the cluster, with prevent control system occur control interrupt situation,
The order of variation can be random variation or is changed according to default number order, no longer limit herein.
And what kind of change procedure is wherein specifically have passed through, certain information is in general transferred in controller node cluster, makes control
Device node processed makes corresponding transformation, which can be specific existing signal or the transition regime of acquiescence,
It is that controller node is made to be gone from the point of view of user, the transformation of master slave relation is there are certain tacit agreement, is not in entanglement
Situation, concrete mode do not limit herein.
It certainly, should wherein may be specifically limited herein and no longer inevitably there are some other processing operations
The corresponding place of the characteristics of changing depending on particular problem, processing environment and the pipe network streamflow regime faced in specific actual conditions selection
Reason operation and setting predetermined variation order.
Master controller node is obtained according to the current pressure values and preset pressure value perform prediction calculating operation that receive
Operating parameter；
On the basis of aforesaid operations, this operation is intended to receive the pressure value of current pipe network and pre- by master controller node
If pressure value, while state computation and prediction are carried out according to actual pressure value and preset pressure value, are drawn most after discriminatory analysis
The operating parameter of water pump before appropriate.Wherein, master controller node receives current pressure values it is conceivable that other from
What controller node was sent, and preset pressure value can be the parameter or upper one set in master controller node
The parameter that a master controller node is sent.
Specifically, current pressure values are the equal of current pipe network state, preset pressure value is the equal of for pipe network
It is expected that operating status.The variable quantity of pipe network streamflow regime is calculated according to current amount and expecting state, according to variable quantity combination phase
Water flow variation model in the pipe network answered obtains water pump operation variable quantity, and water outlet pump is calculated according to the control algolithm of corresponding water pump
The operating parameter of application.
That is, above-mentioned steps, according to current quantity of state and expected quantity of state, drawing needs how water pump runs
The operating parameter of expected state can just be reached.According to perform prediction calculating operation, obtained operating parameter can make water pump
It runs in the best condition.
Operating parameter is sent to from controller node, each controller node is according to operating parameter under each controller node
The variable frequency pump unit of setting is controlled.
On the basis of aforesaid operations, this operation is intended to send operating parameter into other controller nodes, makes the cluster
In all controller nodes the water pump in controller node is controlled using the operating parameter.
From master controller node to the instruction of the transmission operating parameter from controller node, it has been basically completed in cluster
The operation control operation of controller node, is observed in the cluster, is there are control centre at this time, and this control centre is to other
Control node carries out control operation.Meanwhile others receive access signal from controller node, are converted into master controller node
Controller node in cluster is controlled, is observed in units of cluster, the equipment of control centre is not present just in the cluster
Realize the autonomy of controller cluster.
This process is similar in actual life：The system of the daily squad leader of implementation in class, the form master set wheel
The mode and order for length of changing shifts when there is squad leader to ask for leave, also just carry out claass management by next squad leader, and are unlikely to class
It is chaotic.If what is run is the system of normal squad leader, in the case that squad leader asks for leave, if the form master without appointing newly immediately
Squad leader is also managed without replacing squad leader immediately, will be absorbed in the state of no management.Daily rotation squad leader be equivalent to according to
Predetermined way and order join the permission of master controller node, and the cluster of controller node is in the case where being not required control centre
Autonomy is realized, while when there is the situation that master controller node can not work, can also be run well.
Based on above-described embodiment, how the present embodiment is obtaining one of the permission transform aspect from controller node
Technology expands, and other steps are substantially the same with a upper embodiment, and same section can be found in an embodiment relevant portion, herein not
It repeats again.
It can include：
When triggering preset condition, master controller node is converted to from controller node, and to other from controller node
Sending permission conversion signal.
This operation is intended to when triggering some preset condition, which is converted to this from controller node,
And send the permission transform signal to other from controller node.
Wherein, one is allow to convert the condition occurred as event condition or time conditions.Event condition can be with
More flexibly, certain particular case is set, principal and subordinate's rapid translating can be made into suitable controller node, reply to be facilitated to become
Change.And with time conditions, the situation that conversion signal transmission can be prevented to be obstructed, when arrival time event, from controller node
Acquiescence master controller node is had been converted into from controller node, is automatically converted to master controller node, the master without waiting for before
Controller node sends conversion signal.
It should be noted that from controller node converted according to default order, so being not in who is received
Situation about just being converted to signal, therefore, master controller node can send conversion letter to every other from controller node
Number.So master controller node saves the hard of master controller node without knowing which next master controller node is
Part resource.
More than technical method is based on, a kind of control method for water pump that the application provides need not increase special master control
Device processed according to the exchange of the spontaneous carry out permission of default exchanged form between each controller, realizes that rotation as master controller, makes
It obtains each from fractional load and pressure is undertaken between controller, significantly reduces operation and maintenance cost, eliminates while lose
Becoming homeless has the possibility of water pump control.
The present embodiment is to be directed to how master controller node in a upper embodiment obtains the tool that preset pressure value is made
Body limits, and other steps are identical with upper embodiment answer, and same section can be found in an embodiment relevant portion, herein no longer
It repeats.
Working state analysis is carried out according to operating status, obtains preset pressure value；
This operation is intended to carry out a series of analysis operations to operating status, obtains the preset pressure value for being suitble to current state.
Of course, it is possible to which there are many mode for obtaining preset pressure value, may additionally there are other processing when carrying out analysis operation and walk
Suddenly, it is specifically limited herein and no longer.
Preset pressure value is sent to master controller by controller routing.
On the basis of aforesaid operations, this operation is intended to that the preset pressure value analyzed and obtained will be handled by controller routing
It is sent to master controller node, it is contemplated that in sub-controller cluster, controller is connected by routing, is completed
The direct data transmission of controller.Wherein, routing refers to the transmission that data are completed in network layer.
It should be noted that in the present embodiment, using the 4th layer of osi model in BACnet agreements：Physical layer, number
According to link layer, network layer and application layer.Since the environment of application is not the application environment of terminal, comparatively network level compared with
Simply, it is more demanding simultaneously for the transmission speed of data.Therefore, the present embodiment has selected four layers of osi model after simplifying.
Corresponding, the data transmission inside controller is happened at application layer, and the unit that controller is independent as one, between
Data transmission is happened at network layer, and completes forwarding by routing, can save unnecessary network layer transport unit by device in order to control,
And when amount controller increases, the quantity of routing will not substantially increase, and reduce hardware cost.It is meanwhile single when occurring
During member damage, also beneficial to the maintenance of controller cluster.
In the controller cluster for being provided with routing, due to the data of each controller need to be used just can be with by routing forwarding
Transmission, therefore, the connection of cluster is to be rendered as star topology, route the center for structure.Line between implementing to save
Road connects, while when circuit damages, is also easier to find out damaged location.
It is envisioned that the quantity routeing in the cluster can increase with the increasing for quantity of controller node, but
Remain that the quantity of routing is less than the quantity of controller node.Its specific ratio for setting quantity, can be according to using ring
Border difference and equipment performances and set, do not limit herein.
Likewise it is preferred that, the controller cluster network in embodiment can be set to observe data, collect data
Management platform.
At this point it is possible to by route to management platform send controller cluster data, and need not each controller to
Management platform is sent, and saves the line arrangement of implementation.
Certainly, during controller and route transmission data may inevitably there are some processing operations,
It herein and is not specifically limited, the specific requirement in specific actual conditions should be regarded, then summation considers and processing accordingly is selected to calculate
Method and step.
The present embodiment be for the prediction calculating operation in a upper embodiment make one it is specific limit, other steps with it is upper
One embodiment is substantially the same, and same section can be found in the relevant portion of an embodiment, no longer repeat herein.
It can specifically include：
Master controller sends inquiry instruction to from controller；
The feedback data of sensor is inquired about according to inquiry instruction from controller, obtains current pressure values；
Master controller is sent to from controller by current pressure values；
The first two operates, it is intended to generate the current pressure values for needing to judge by the controller node in cluster.Controller
Node receives instruction, by the sensor being arranged under node, collects relevant pressure value.
Based on aforesaid operations, obtained pressure value is sent to master controller node by last operation.
Certainly, the transmission and the transmission of current pressure values instructed at this is also to be completed by the routing in cluster, in transmission
Also some processing operations are inevitably needed, suitable processing operation should be selected depending on current application situation, do not done herein superfluous
It states.
Master controller carries out prediction calculating operation according to current pressure values and preset pressure value, obtains operating parameter.
Based on aforesaid operations, this operation is intended to by predicting that calculating operation obtains operating parameter, process above-described embodiment
In relate to, this will not be repeated here.
Wherein, it is necessary to which explanation, in the present embodiment, the network layer protocol of routing are formed based on MSTP subnets, master control
Device node processed passes through from controller node and sends inquiry and control instruction.The corresponding finger based on application layer is received from controller node
Order, and send corresponding message.The instruction of its application layer can be such as：“ReadProperty”、
" ReadPropertyMultiple ", " WriteProperty ", " WritePropertyMultiple ", " Who-has " and " I-
Have ", " Who-is " and " I-am ", certainly, the title of instruction, content and instruction format can be according to its concrete applications
Environment is designed, and the information feature transmitted between adaptive controller does not limit herein.
More than technical method is based on, a kind of control method for water pump that the application provides need not increase special master control
Device processed according to the exchange of the spontaneous carry out permission of default exchanged form between each controller, realizes that rotation as master controller, makes
It obtains each from fractional load and pressure is undertaken between controller, significantly reduces operation and maintenance cost, eliminates while lose
Becoming homeless has the possibility of water pump control.
Each embodiment is described by the way of progressive in specification, the highlights of each of the examples are with other realities
Apply the difference of example, just to refer each other for identical similar portion between each embodiment.
The principle and implementation of this application are described for specific case used herein, and above example is said
It is bright to be only intended to help to understand the present processes and its core concept.It should be pointed out that the ordinary skill for the art
For personnel, on the premise of the application principle is not departed from, can also to the application, some improvement and modification can also be carried out, these improvement
It is also fallen into modification in the application scope of the claims.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little elements, but also including the other elements being not explicitly listed or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except also there are other identical elements in the process including element, method, article or equipment.
Claims (7)
1. a kind of control system of water pump, which is characterized in that including：
N number of interconnection obtains operating parameter according to the current pressure values perform prediction calculating operation received, and described in transmission
Operating parameter；Control signal is sent according to the operating parameter；Rights state is converted when receiving permission transform signal
BACnet controllers；
It is connected with N number of BACnet controllers one-to-one corresponding, receives and the N number of of operation is adjusted according to the control signal
Variable frequency pump unit；
It is connected with N number of BACnet controllers one-to-one corresponding, the real-time status for gathering water supply network obtains and sends described work as
N number of sensor of preceding pressure value.
2. control system of water pump according to claim 1, which is characterized in that further include：
It is connected with each BACnet controllers, receive and forwards the BACnet routers of presupposed information.
3. control system of water pump according to claim 2, which is characterized in that further include：
It is connected with the BACnet routers, receive controller information and sends the control centre of control information.
4. control system of water pump according to claim 3, which is characterized in that the sensor is specially pressure sensor.
5. control system of water pump according to claim 4, which is characterized in that the BACnet routers are specially BAS roads
By device.
6. control system of water pump according to claim 5, which is characterized in that the variable frequency pump unit is specially high-performance
Vector converter water pump assembly.
7. control system of water pump according to claim 6, which is characterized in that the control centre is specially BACnet/IP
Control centre.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559182A (en) * | 2017-08-31 | 2018-01-09 | 广东工业大学 | A kind of water pump control method and control system |
| CN111997879A (en) * | 2020-07-24 | 2020-11-27 | 深圳市汇川技术股份有限公司 | Multi-pump water supply control method and system, water pump driver and storage medium |
-
2017
- 2017-08-31 CN CN201721113678.6U patent/CN207377780U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559182A (en) * | 2017-08-31 | 2018-01-09 | 广东工业大学 | A kind of water pump control method and control system |
| CN111997879A (en) * | 2020-07-24 | 2020-11-27 | 深圳市汇川技术股份有限公司 | Multi-pump water supply control method and system, water pump driver and storage medium |
| CN111997879B (en) * | 2020-07-24 | 2022-07-15 | 深圳市汇川技术股份有限公司 | Multi-pump water supply control method and system, water pump driver and storage medium |
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Effective date of registration: 20180802 Address after: 510000 First and Second Floors of No.3 Factory Building on Baihe Road (Chajiao Section on the East Side of Guangzhou Iron and Steel Road) in Liwan District, Guangzhou City, Guangdong Province Patentee after: Guangzhou hundred good fortune Electric Appliance Equipment Co., Ltd Address before: 510062 courtyard 729, Dongfeng East Road, Yuexiu District, Guangzhou, Guangdong Patentee before: Guangdong University of Technology |