CN103542157B - Data communication processing method and device and electronic expansion valve controller - Google Patents
Data communication processing method and device and electronic expansion valve controller Download PDFInfo
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- CN103542157B CN103542157B CN201210247649.4A CN201210247649A CN103542157B CN 103542157 B CN103542157 B CN 103542157B CN 201210247649 A CN201210247649 A CN 201210247649A CN 103542157 B CN103542157 B CN 103542157B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Selective Calling Equipment (AREA)
Abstract
The embodiment of the invention provides a data communication processing method and device and an electronic expansion valve controller. Modification of operational control parameters of an electronic expansion valve under the non-halt state is achieved. The data communication processing device comprises an obtaining module, a first encoding module and a first transmitting module, wherein the obtaining module is used for obtaining the first operational control parameter to be transmitted to the electronic expansion valve controller, the first encoding module is used for encoding the first operational control parameter to obtain first data, and the first transmitting module is used for transmitting the first data to the electronic expansion valve controller through an interface converting unit so that the electronic expansion valve controller can obtain the first operational control parameter and a value of a first identification field after the first data are received and can enable the first operational control parameter to be stored into erasable and programmable storage or a temporary storage unit according to the value of the first identification field. According to the data communication processing method and device and the electronic expansion valve controller, the modification of the operational control parameters of the electronic expansion valve under the non-halt state is achieved.
Description
Technical field
The present invention relates to technical field of industrial control, particularly a kind of data communication processing method, device and electronic expansion
Valve control.
Background technology
Electric expansion valve is to adjust vaporizer liquid supply rate according to pre-set programs, because belonging to electronic type shaping modes, therefore is referred to as
Electric expansion valve.It has adapted to freeze the demand for development of electromechanical integration, with incomparable excellent of heating power electric expansion valve
Characteristic, the intelligentized control method for refrigeration system provide condition, are a kind of rising auto-control energy-saving elements.
Electric expansion valve, as a kind of new control element, is the intelligentized important step of refrigeration system, is refrigeration system
The symbol of system electromechanical, has been applied in increasing field.
The type of drive of electric expansion valve be controller by calculating to the parameter that sensor acquisition is obtained, to driving
Plate sends regulating command, drives electric expansion valve from driving plate to the electric expansion valve output signal of telecommunication.
There is in electronic expansion valve controller scratch pad memory, electronic expansion valve controller is according to pre-defined algorithm and erasable
The operational parameter control of memory write record is controlled to electric expansion valve.
However, inventor is had found during the embodiment of the present invention is realized, existing electronic expansion valve controller can only
Operational parameter control could be changed after the shutdown, it is extremely inconvenient for the debugging of equipment.
It is illustrated below.
10 groups of operational parameter controls to be tested are suppose there is, commissioning staff cannot confirm the effective of this 10 groups of parameters in advance
Property, now need operational parameter control to be tested to per group successively to test.
In test process, one group of data is often tested, be required for stopping the operation of electric expansion valve and controller, then
Next group of operational parameter control to be tested is write to scratch pad memory, then starting electric expansion valve and controller carries out this
The test of group operational parameter control.
When data to be tested are a lot, above-mentioned scheme is extremely inconvenient.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of data communication processing method, device and electronic expansion valve controls
Device, realizes the modification of electric expansion valve operational parameter control under not stopped status.
To achieve these goals, a kind of data communication processing meanss are embodiments provided, is set for a distal end
Standby, the remote equipment is connected with an electronic expansion valve controller by a communication link, the electronic expansion valve controller energy
Enough to control an electric expansion valve according to an operational parameter control, the data communication processing meanss include：
Acquisition module, for obtaining the first operational parameter control to the electronic expansion valve controller to be transmitted；
First coding module, for encoding to first operational parameter control, obtains the first data, wherein described
First data include one first identification field；
First sending module, for passing through an interface conversion unit by first data is activation to the electric expansion valve
Controller so that the electronic expansion valve controller can obtain the first operation control after first data are received
The value of parameter processed and first identification field, and the value according to first identification field runs control by described first
Scratch pad memory or temporary storage location of the parameter storage to the electronic expansion valve controller；
Wherein, first operational parameter control is write the electronic expansion valve controls by the electronic expansion valve controller
After the scratch pad memory of device, re-read and according to the scratch pad memory in first operational parameter control control
The electric expansion valve；First operational parameter control is write the electric expansion valve control by the electronic expansion valve controller
After the temporary storage location of device processed, according to the temporary storage location in first operational parameter control temporarily control the electronic expansion
Valve.
In order to above-mentioned purpose is better achieved, the embodiment of the present invention additionally provides a kind of data communication processing meanss, is used for
One electronic expansion valve controller, the electronic expansion valve controller are connected with a remote equipment by a communication link, the electricity
Sub- expansion valve controller can control an electric expansion valve, the data communication processing meanss bag according to an operational parameter control
Include：
First receiver module, for receive that the remote equipment is encoded to the first operational parameter control and sent
One data, first data include one first identification field；
First parsing module, for parsing the first operational parameter control and the first identifier word described in first data acquisition
The value of section；
First processing module, for when the value of first identification field is the first numerical value, by the described first operation
After control parameter writes the scratch pad memory of the electronic expansion valve controller, and control the electronic expansion valve controller weight
It is new read and according to the scratch pad memory in first operational parameter control control the electric expansion valve；
Second processing module, for when the value of first identification field is second value, by the described first operation
After control parameter writes the temporary storage location of the electronic expansion valve controller, and control the electronic expansion valve controller reading simultaneously
First operational parameter control according to the temporary storage location temporarily controls the electric expansion valve.
In order to above-mentioned purpose is better achieved, the embodiment of the present invention additionally provides a kind of data communication processing method, is used for
One remote equipment, the remote equipment are connected with an electronic expansion valve controller by a communication link, the electric expansion valve
Controller can control an electric expansion valve according to an operational parameter control, and the data communication processing method includes：
Obtain the first operational parameter control to the electronic expansion valve controller to be transmitted；
First operational parameter control is encoded, the first data are obtained, wherein described first data include one
First identification field；
By first data is activation to the electronic expansion valve controller so that the electronic expansion valve controller can
After first data are received, the value of acquisition first operational parameter control and first identification field, and according to
According to first identification field value by first operational parameter control storage to the electronic expansion valve controller can
Flash memory or temporary storage location.
Wherein, first operational parameter control is write the electronic expansion valve controls by the electronic expansion valve controller
After the scratch pad memory of device, re-read and according to the scratch pad memory in first operational parameter control control
The electric expansion valve；First operational parameter control is write the electric expansion valve control by the electronic expansion valve controller
After the temporary storage location of device processed, according to the temporary storage location in first operational parameter control temporarily control the electronic expansion
Valve.
In order to above-mentioned purpose is better achieved, the embodiment of the present invention additionally provides a kind of data communication processing method, is used for
One electronic expansion valve controller, the electronic expansion valve controller are connected with a remote equipment by a communication link, the electricity
Sub- expansion valve controller can control an electric expansion valve, the data communication processing method bag according to an operational parameter control
Include：
Receive the first data that the remote equipment is encoded to the first operational parameter control and sent, first number
According to including one first identification field；
Parse the value of the first operational parameter control and the first identification field described in first data acquisition；
When the value of first identification field is the first numerical value, first operational parameter control is write into the electricity
After the scratch pad memory of sub- expansion valve controller, and control the electronic expansion valve controller re-read and according to it is described can
First operational parameter control in flash memory controls the electric expansion valve；
When the value of first identification field is second value, first operational parameter control is write into the electricity
After the temporary storage location of sub- expansion valve controller, and control the electronic expansion valve controller reading and according in the temporary storage location
First operational parameter control temporarily control the electric expansion valve.
In order to above-mentioned purpose is better achieved, the embodiment of the present invention additionally provides a kind of electronic expansion valve controller, described
Electronic expansion valve controller is connected with a remote equipment by a communication link, and the electronic expansion valve controller can be according to one
Operational parameter control controls an electric expansion valve, and the electronic expansion valve controller includes above-mentioned data communication processing meanss.
The embodiment of the present invention at least has the advantage that：
The data communication processing method of the embodiment of the present invention, device and electronic expansion valve controller, remote control terminal can
Operational parameter control to be modified is sent to electronic expansion valve controller, and by identification field specifying operation control to be modified
The type of parameter processed：Temporarily or permanently, electronic expansion valve controller can lead to after the operational parameter control to be modified is received
The save location that type determines the parameter has been crossed, while according to scope action time of its Type Control operational parameter control,
In the process, and the operation of electric expansion valve and controller need not be stopped, realizing electric expansion valve fortune under not stopped status
The modification of row control parameter.
Description of the drawings
Fig. 1 represents the schematic diagram of the applied environment of the embodiment of the present invention；
Fig. 2 represents that the data communication processing method of the embodiment of the present invention realizes that the flow process of operational parameter control modification is illustrated
Figure；
Fig. 3 represents that the data communication processing method of the embodiment of the present invention realizes the schematic flow sheet of monitoring；
Fig. 4 represents the structural representation of the data communication processing meanss for realizing operational parameter control modification of the embodiment of the present invention
Figure；
Fig. 5 represents the structural representation of the data communication processing meanss of the realization monitoring of the embodiment of the present invention；
Fig. 6 represents that the data communication processing method of the embodiment of the present invention realizes the schematic flow sheet of parameter modification and monitoring；
Fig. 7 represents the structural representation of the electronic expansion valve controller of the embodiment of the present invention；
During Fig. 8 represents the data communication processing method of the embodiment of the present invention, remote equipment and electronic expansion valve controller it
Between data is activation and receive cooperation schematic diagram；
Specific embodiment
The data communication processing method of the embodiment of the present invention, device and electronic expansion valve controller, remote control terminal can
Operational parameter control to be modified is sent to electronic expansion valve controller, and by identification field specifying operation control to be modified
The type of parameter processed：Temporarily or permanently, electronic expansion valve controller can lead to after the operational parameter control to be modified is received
The save location that its type determines the parameter is crossed, while according to scope action time of its Type Control operational parameter control,
In the process, and the operation of electric expansion valve and controller need not be stopped, realizing electric expansion valve fortune under not stopped status
The modification of row control parameter.
The applied environment of the embodiment of the present invention is as shown in figure 1, wherein remote equipment 101 passes through a communication link and an electronics
Expansion valve controller 102 connects, and it is swollen that the electronic expansion valve controller 102 can control an electronics according to an operational parameter control
Swollen valve 103, wherein, remote equipment 101 passes through a communication link and an electronic expansion valve controller 102, and wherein, the data are led to
Letter processing method remote equipment end process as shown in Fig. 2 including：
Step 201, remote equipment 101 obtain the first operation control ginseng to the electronic expansion valve controller to be transmitted
Number；
Step 202, remote equipment are encoded to first operational parameter control, obtain the first data, wherein described
First data include one first identification field；
Step 203, remote equipment is by first data is activation to the electronic expansion valve controller so that the electronics
Expansion valve controller can obtain first operational parameter control and first mark after first data are received
The value of field, and the value according to first identification field will be first operational parameter control storage swollen to the electronics
The scratch pad memory or temporary storage location of swollen valve control.
The data communication processing method electronic expansion valve controller end process as shown in Fig. 2 including：
Step 204, electronic expansion valve controller receive the remote equipment and the first operational parameter control are encoded simultaneously
The first data for sending, first data include one first identification field；
Step 205, electronic expansion valve controller parse the first operational parameter control described in first data acquisition and the
The value of one identification field；
Step 206, when the value of first identification field is the first numerical value, first operational parameter control is write
After entering the scratch pad memory of the electronic expansion valve controller, and control the electronic expansion valve controller re-read and according to
First operational parameter control according to the scratch pad memory controls the electric expansion valve；
Step 207, when the value of first identification field is second value, first operational parameter control is write
After entering the temporary storage location of the electronic expansion valve controller, and control the electronic expansion valve controller reading and according to described temporary
First operational parameter control in memory cell temporarily controls the electric expansion valve.
In the data communication processing method of the embodiment of the present invention, remote control terminal can be sent to electronic expansion valve controller
Operational parameter control to be modified, and by identification field specifying the type of operational parameter control to be modified：Temporarily or forever
Long, electronic expansion valve controller can determine the parameter by playing type after the operational parameter control to be modified is received
Save location, while according to scope action time of its Type Control operational parameter control, in the process, due to electronics it is swollen
Swollen valve control only needs to re-read the operational parameter control that remote control terminal is sended over, and using its original control of replacement
Old parameter in strategy, electronic expansion valve controller can control electric expansion valve according to new parameter, and need not stop
The operation of electric expansion valve and controller, therefore realize in the way of long-range controlling electric expansion valve operation under not stopped status
The modification of parameter.
And while, in the data communication processing method of the embodiment of the present invention, by increasing by first identification field, you can
Different control process are carried out to operational parameter control to be modified, such as the preferably operational parameter control having determined,
Then by the value of first identification field be the first numerical value, electronic expansion valve controller can directly will described first operation control
The scratch pad memory of electronic expansion valve controller described in parameter read-in, as this and subsequent control electric expansion valve according to
According to, and for the operational parameter control of performance to be determined, then it is second value by the value of first identification field, electronics is swollen
Swollen valve control can by the first operational parameter control write temporary storage location, as ought control for the previous period electric expansion valve according to
According to the performance for subsequently also needing to according to operation result judge the operational parameter control.
Therefore, the data communication processing method of the embodiment of the present invention is realized by increasing a simple identification field
The control process different to different running control parameter, improve repairing for electric expansion valve operational parameter control under not stopped status
The motility for changing.
In the middle of electronic expansion valve controller, the main operational parameter control being related to includes but is not limited to following parameter：
Proportionality coefficient, integral coefficient, differential coefficient, sampling number, retention time, target superheat degree, expansion valve target are opened
Degree etc..
In a particular embodiment of the present invention, in remote equipment, above-mentioned operational parameter control can be adjusted manually by user
Save and arrange.Operational parameter control after regulation can be sent to electronic expansion valve controller via communication link, while in the lump
Send the identification information of operational parameter control.In this case, electronic expansion valve controller meeting in real time will be existing according to mark
Operational parameter control be updated to the operational parameter control after the regulation for receiving, realize in the case of not out of service
Operational parameter control adjust.
The above-mentioned data communication processing method of the embodiment of the present invention can realize electric expansion valve operation under not stopped status
The modification of control parameter, but in some cases, such as remote equipment needs to know the state that electric expansion valve is current, or needs
Know that electronic expansion valve controller currently controls the operational parameter control of electric expansion valve.
The above-mentioned data communication processing method of the embodiment of the present invention is as shown in figure 3, the process at remote equipment end also includes：
Step 301, remote equipment determine the data type of the data for treating from the electronic expansion valve controller to obtain；
Step 302, remote equipment generate the second data to data type coding, in wherein described second data at least
Including the second identification field for indicating the data type；
Step 303, remote equipment is by second data is activation to the electronic expansion valve controller so that the electronics
Expansion valve controller after second data are received, can obtain the value of second identification field, and according to described
The value of the second identification field obtains the state parameter of the electric expansion valve or obtains the erasable of the electronic expansion valve controller
After the data stored in memory write, the data for obtaining are returned into the remote equipment；
Process at electronic expansion valve controller end also includes：
Step 304, the second number that electronic expansion valve controller receives the remote equipment to data type coding and sends
According to second data include one second identification field；
Step 305, electronic expansion valve controller parse the value of the second identification field described in second data acquisition；
Step 306, when the value of second identification field is third value, electronic expansion valve controller obtains described
After the state parameter of electric expansion valve, the state parameter of the electric expansion valve is returned into the remote equipment；
Step 307, when the value of second identification field is four numerical value, electronic expansion valve controller reads described
The operational parameter control of current record in the scratch pad memory of electronic expansion valve controller, by the scratch pad memory when
The operational parameter control of front record returns the remote equipment.
Under this mode, when remote equipment is in running status, electronic expansion valve controller can be according to the need of remote equipment
The state parameter of operational parameter control or electric expansion valve of electronic expansion valve controller is sent when realistic to remote equipment, and it is remote
The data real-time update that the operational parameter control or state parameter that end equipment shows can be sent with communication link, can obtain most
Newly, most accurate status information.
And while, in the data communication processing method of the embodiment of the present invention, by increasing by second identification field, you can
Enable electronic expansion valve controller to send different data, the monitoring to different conditions be capable of achieving by an instruction,
The flexibility ratio of monitoring is improve, the difficulty that system is realized also is reduced.
In a particular embodiment of the present invention, the state parameter of the electric expansion valve includes but is not limited to following parameter：Pressure
Contracting machine suction temperature, indoor heat exchanger temperature, outdoor heat exchanger temperature, pressure correspondence saturation temperature, compressor state, four
Port valve state, defrosting state, the current aperture of electric expansion valve, the current degree of superheat of electric expansion valve etc. are various can be by being arranged at
The parameter that the sensor acquisition of electric expansion valve one end is arrived.
In a particular embodiment of the present invention, the data communication processing method also includes：By the electronic expansion valve controls
The state parameter that device is returned is patterned display processing so that user can more intuitively determine the work shape of electric expansion valve
State.
Remote equipment receives the backward electronic expansion valve controls of data from the electronic expansion valve controller simultaneously
The time interval that device is sent between first data is more than a time threshold.
In the specific embodiment of the invention, when remote equipment can be realized for the modification of parameter and to controller end simultaneously
During monitoring, it is related to send the first data and the second data to electronic expansion valve controller, in a particular embodiment of the present invention,
First data and the second data can use identical form, and arranging a field wherein is used for indicating following 4 kinds of situations：
Obtain the state parameter of electric expansion valve；
Permanent modification operational parameter control；
Operational parameter control is changed temporarily；
Read the operational parameter control of current record in scratch pad memory.
Describe in detail as follows：
When the value of the identification field is 0, as condition monitoring pattern.
Electronic expansion valve controller will return remote equipment, remote equipment in real time after the state parameter of acquisition electric expansion valve
By the data for receiving after treatment, by interface display out.The monitor in real time of status information is carried out in this way, together
When can also observe parameter information.
When the value of the identification field is 1, operational parameter control is as temporarily changed.
Remote equipment is adjusted to operational parameter control by operation, is sent in electronic expansion valve controller.Electronics
After expansion valve controller is received, parameter is kept in, and be reception by the existing operational parameter control real-time update of system operation
The operational parameter control for arriving.In such a mode, remote equipment simultaneously can also real-time monitoring system status information.
When the value of the identification field is 2, operational parameter control is as forever changed.
Remote equipment is adjusted to operational parameter control by operation, is sent in electronic expansion valve controller.Electronics
After expansion valve controller is received, the data in scratch pad memory are changed, and the existing operation control of system operation is joined
Number real-time update is the operational parameter control for receiving.In such a mode, remote equipment simultaneously can also real-time monitoring system
Status information.
When the value of the identification field is 3, the operational parameter control of current record in scratch pad memory is as read.
After electronic expansion valve controller is received, the data in scratch pad memory are read, and the data read are divided
For several frames, progressively it is transferred in computer, computer will be included in interface with tabular form after the data compilation for receiving.
Certainly, the above is only illustrated, and the embodiment of the present invention can also arrange the group that other values realize above-mentioned 4 kinds of situations
Close, obtain the state parameter of electric expansion valve while such as forever changing operational parameter control, and for example obtain electric expansion valve
The operational parameter control of current record in scratch pad memory is read while state parameter, and here is not illustrated one by one in detail
It is bright.
Data communication processing meanss such as Fig. 4 institutes at the remote equipment end and electronic expansion valve controller end of the embodiment of the present invention
Show, the data communication processing meanss at wherein remote equipment end include：
Acquisition module, for obtaining the first operational parameter control to the electronic expansion valve controller to be transmitted；
First coding module, for encoding to first operational parameter control, obtains the first data, wherein described
First data include one first identification field；
First sending module, for passing through an interface conversion unit by first data is activation to the electric expansion valve
Controller so that the electronic expansion valve controller can obtain the first operation control after first data are received
The value of parameter processed and first identification field, and the value according to first identification field runs control by described first
Scratch pad memory or temporary storage location of the parameter storage to the electronic expansion valve controller；
The data communication processing meanss at electronic expansion valve controller end include：
First receiver module, for receive that the remote equipment is encoded to the first operational parameter control and sent
One data, first data include one first identification field；
First parsing module, for parsing the first operational parameter control and the first identifier word described in first data acquisition
The value of section；
First processing module, for when the value of first identification field is the first numerical value, by the described first operation
After control parameter writes the scratch pad memory of the electronic expansion valve controller, and control the electronic expansion valve controller weight
It is new read and according to the scratch pad memory in first operational parameter control control the electric expansion valve；
Second processing module, for when the value of first identification field is second value, by the described first operation
After control parameter writes the temporary storage location of the electronic expansion valve controller, and control the electronic expansion valve controller reading simultaneously
First operational parameter control according to the temporary storage location temporarily controls the electric expansion valve.
The above-mentioned data communication processing meanss of the embodiment of the present invention can realize electric expansion valve operation under not stopped status
The modification of control parameter, but in some cases, such as remote equipment needs to know the state that electric expansion valve is current, or needs
Know that electronic expansion valve controller currently controls the operational parameter control of electric expansion valve.
The above-mentioned data communication processing meanss of the embodiment of the present invention are as shown in figure 5, also include at remote equipment end：
Determination type module, for determining the data type for treating from the electronic expansion valve controller data for obtaining；
Second coding module, for generating the second data to data type coding, in wherein described second data extremely
Few the second identification field for including indicating the data type；
Second sending module, for by second data is activation to the electronic expansion valve controller so that the electricity
Sub- expansion valve controller after second data are received, can obtain the value of second identification field, and according to institute
State the second identification field value obtain the electric expansion valve state parameter or obtain the electronic expansion valve controller can
After the data stored in flash memory, the data for obtaining are returned into the remote equipment.
Electronic expansion valve controller end also includes：
Second receiver module, it is for the second data for receiving the remote equipment to data type coding and send, described
Second data include one second identification field；
Second parsing module, for parsing the value of the second identification field described in second data acquisition；
3rd processing module, for when the value of second identification field is third value, obtaining the electronics swollen
After the state parameter of swollen valve, the state parameter of the electric expansion valve is returned into the remote equipment；
Fourth processing module, for when the value of second identification field is four numerical value, reading the electronics swollen
The operational parameter control of current record in the scratch pad memory of swollen valve control, by current record in the scratch pad memory
Operational parameter control return the remote equipment.
It should be appreciated that the modification for parameter and the prison to controller end in the method for the embodiment of the present invention, device
Control can be individually present, it is also possible to combine operation, be exemplified below as follows.
As shown in fig. 6, a kind of concrete scheme for combining the modification for parameter and the monitoring to controller end includes：
Remote equipment is by the first data is activation to the electronic expansion valve controller；Including the first operation control ginseng
Number, and the first identification field is second value；
Electronic expansion valve controller parses the first operational parameter control and the first identifier word described in first data acquisition
The value of section；
As the first identification field is second value, first operational parameter control writes by electronic expansion valve controller
After the temporary storage location of the electronic expansion valve controller, and control the electronic expansion valve controller reading and according to described temporary
First operational parameter control in unit temporarily controls the electric expansion valve；
After a period of time, remote equipment by second data is activation to the electronic expansion valve controller, assignment the
The value of two identification fields is third value；
After the electronic expansion valve controller obtains the state parameter of the electric expansion valve, by the electric expansion valve
State parameter returns the remote equipment；
By the display of remote equipment, user has found that the state parameter of electric expansion valve is undesirable, the first data are sent out
It is sent to the electronic expansion valve controller；Including the second operational parameter control, and the first identification field is second value；
As the first identification field is second value, second operational parameter control writes by electronic expansion valve controller
After the temporary storage location of the electronic expansion valve controller, and control the electronic expansion valve controller reading and according to described temporary
Second operational parameter control in unit temporarily controls the electric expansion valve；
When user has found that the state parameter of electric expansion valve meets the requirements by the display of remote equipment, the first data are sent out
It is sent to the electronic expansion valve controller；Including the second operational parameter control, and the first identification field is the first numerical value；
As the first identification field is the first numerical value, first operational parameter control writes by electronic expansion valve controller
After the scratch pad memory of the electronic expansion valve controller, and control the electronic expansion valve controller reading and according to described
Operational parameter control in scratch pad memory temporarily controls the electric expansion valve.
It should be appreciated that it is above-mentioned be only it is a kind of illustrate, the embodiment of the present invention for the modification of parameter and right
The combination of the monitoring of controller end can also be other modes, numerous to list herein.
Additionally, the remote equipment of the embodiment of the present invention also includes a log pattern, for recording communication data, and will record
Information is displayed on interface with visual means (such as list or figure).In this way, in monitoring current state and parameter
The variation tendency of selected state and parameter can also be intuitively monitored simultaneously.
It is illustrated below.
While communication is carried out, selectivity record is carried out to communication data, selectivity is recorded according to time interval and portion
Divided data is recorded, for example, record a secondary data every 1s or 1h, only data of the record 2 to n or 4 to m, and will record number
CSV forms are stored in daily record according to this, facilitate operator to be consulted.And can be by operating daily record data with list or figure
(curve or block diagram etc.) mode is displayed in operation interface, and as communication carries out real-time update.Realized to state with this
With the display directly perceived of the historical variations process and trend of parameter.
In a particular embodiment of the present invention, electronic expansion valve controller need obtain electric expansion valve state parameter simultaneously
Remote equipment is returned to, now electronic expansion valve controller is joined from electric expansion valve reading state by the interface that arranges thereon
Number, as shown in fig. 7, including：Defrosting, degree of supercooling monitoring interface, pressure sensor interface, temperature sensor interface etc., MCU
By these sensor reading state parameters, remote equipment is returned to by COM1 then, can be with as the form of transmission
Using existing various forms, such as the data volume of each frame data of data communication can sets itself, containing representated by each data
Justice can sets itself, the accuracy of the data that can be transmitted with inspection institute including check bit in each data, each frame number
According to also including a check code checking the accuracy of the data of each frame.
In a particular embodiment of the present invention, to receive data from the electronic expansion valve controller backward for remote equipment
The time interval that the electronic expansion valve controller is sent between first data is more than a time threshold.And electric expansion valve
Controller from remote equipment receive data it is rear to remote equipment send data between time interval also greater than a time gate
Limit.
As shown in figure 8, a kind of schematic diagram of the data is activation/reception for the method that is applied to the embodiment of the present invention.Wherein,
Electronic expansion valve controller from remote equipment receive data it is rear to remote equipment send data between time interval be
100ms, remote equipment receive the rear of data from electronic expansion valve controller and send data to the electronic expansion valve controller
Between time interval be 100ms.
Further below the method and apparatus of the embodiment of the present invention is described in detail.
Can be communicated using various existing communication protocols between remote equipment and electronic expansion valve controller, at this
In invention specific embodiment, the preferred mode of one of which is communicated for half-duplex asynchronous serial communication mode, wherein baud
Rate is 600BPS, and 8bit data bit, start bit are 1bit low levels, and stop bits is 2bit high level.
In the specific embodiment of the invention, identical data lattice between remote equipment and electronic expansion valve controller, can be adopted
Formula, the specific data form of one of which are as shown in the table：
| First code | Address code | Information code | Data length | Data 1 | ...... | Data n | End code | Check code |
For above field is described as follows：
First code：For showing field that this data transfer starts；
Address code：For indicating EPROM addresses to be operated.
Information code：For showing sender, communication data attribute (command frame, status frames, parameter frame)；
Data length：Show how many data this frame has altogether from data 1 to data N；
1～data of data n is used for carrying communication data；
End code：For showing the field of this DTD；
Check code：Negate after address code to end code is added without carry.
Between remote equipment and electronic expansion valve controller during data transfer, regard when the same data message beamed back is received
For sending successfully, continue the next frame data of transmission；The row data are transmitted again otherwise.But when any one party sends/connects for continuous 6 times
In the case of receiving same Frame, communication stops, and reports communication failure.
And work as under monitoring mode, it is impossible to just data is received from electronic expansion valve controller then communicate more than certain hour
Stop, reporting communication failure.
The embodiment of the present invention additionally provides a kind of electronic expansion valve controller, is arranged at electronics including what is described before
The data communication processing meanss at expansion valve controller end, no further details to be given herein.
The above is only embodiments of the present invention, it is noted that for those skilled in the art come
Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (19)
1. a kind of data communication processing meanss, for a remote equipment, it is characterised in that the remote equipment passes through a communication chain
Lu Yuyi electronic expansion valve controllers connect, and the electronic expansion valve controller can be electric according to operational parameter control control one
Sub- expansion valve, the data communication processing meanss include：
Acquisition module, for obtaining the first operational parameter control to the electronic expansion valve controller to be transmitted；
First coding module, for encoding to first operational parameter control, obtains the first data, and wherein described first
Data include one first identification field；
First sending module, for passing through an interface conversion unit by first data is activation to the electronic expansion valve controls
Device so that the electronic expansion valve controller can obtain the first operation control ginseng after first data are received
The values of number and first identification field, and according to first identification field value by first operational parameter control
Store the scratch pad memory or temporary storage location of the electronic expansion valve controller；
Wherein, first operational parameter control is write the electronic expansion valve controller by the electronic expansion valve controller
After scratch pad memory, re-read and according to the scratch pad memory in first operational parameter control control it is described
Electric expansion valve；First operational parameter control is write the electronic expansion valve controller by the electronic expansion valve controller
Temporary storage location after, according to the temporary storage location in first operational parameter control temporarily control the electric expansion valve.
2. data communication processing meanss according to claim 1, it is characterised in that also include：
Determination type module, for determining the data type for treating from the electronic expansion valve controller data for obtaining；
Second coding module, for generating the second data to data type coding, at least wraps in wherein described second data
Include the second identification field for indicating the data type；
Second sending module, for by second data is activation to the electronic expansion valve controller so that the electronics is swollen
Swollen valve control after second data are received, can obtain the value of second identification field, and according to described the
The value of two identification fields obtains the state parameter of the electric expansion valve or obtains the erasable of the electronic expansion valve controller
After the data stored in memorizer, the data for obtaining are returned into the remote equipment.
3. data communication processing meanss according to claim 2, it is characterised in that first data and the second data tool
There is identical data form.
4. data communication processing meanss according to claim 2, it is characterised in that also include：
Display processing module, for being patterned display processing by the state parameter that the electronic expansion valve controller is returned.
5. data communication processing meanss according to claim 2, it is characterised in that connect from the electronic expansion valve controller
The rear time interval sent to the electronic expansion valve controller between first data for receiving data is more than a time gate
Limit.
6. a kind of data communication processing meanss, for an electronic expansion valve controller, it is characterised in that the electric expansion valve control
Device processed is connected with a remote equipment by a communication link, and the electronic expansion valve controller can be according to an operational parameter control
An electric expansion valve is controlled, the data communication processing meanss include：
First receiver module, for receiving the first number that the remote equipment is encoded to the first operational parameter control and sent
According to first data include one first identification field；
First parsing module, for parsing the first operational parameter control described in first data acquisition and the first identification field
Value；
First processing module, for when the value of first identification field is the first numerical value, the described first operation being controlled
After the scratch pad memory of electronic expansion valve controller described in parameter read-in, and control the electronic expansion valve controller and read again
Take and according to the scratch pad memory in first operational parameter control control the electric expansion valve；
Second processing module, for when the value of first identification field is second value, the described first operation being controlled
After the temporary storage location of electronic expansion valve controller described in parameter read-in, and control the electronic expansion valve controller reading foundation
First operational parameter control in the temporary storage location temporarily controls the electric expansion valve.
7. data communication processing meanss according to claim 6, it is characterised in that also include：
Second receiver module, for the second data for receiving the remote equipment to data type coding and send, described second
Data include one second identification field；
Second parsing module, for parsing the value of the second identification field described in second data acquisition；
3rd processing module, for when the value of second identification field is third value, obtaining the electric expansion valve
State parameter after, the state parameter of the electric expansion valve is returned into the remote equipment；
Fourth processing module, for when the value of second identification field is four numerical value, reading the electric expansion valve
The operational parameter control of current record in the scratch pad memory of controller, by the fortune of current record in the scratch pad memory
Row control parameter returns the remote equipment.
8. data communication processing meanss according to claim 7, it is characterised in that first data and the second data tool
There is identical data form.
9. data communication processing meanss according to claim 8, it is characterised in that receive data from the remote equipment
It is rear to the remote equipment send data between time interval be more than a time threshold.
10. a kind of data communication processing method, for a remote equipment, it is characterised in that the remote equipment is by a communication
Link is connected with an electronic expansion valve controller, and the electronic expansion valve controller can be according to operational parameter control control one
Electric expansion valve, the data communication processing method include：
Obtain the first operational parameter control to the electronic expansion valve controller to be transmitted；
First operational parameter control is encoded, the first data are obtained, wherein described first data include one first
Identification field；
By first data is activation to the electronic expansion valve controller so that the electronic expansion valve controller can connect
After receiving first data, the value of first operational parameter control and first identification field is obtained, and according to institute
First operational parameter control storage is arrived the erasable of the electronic expansion valve controller by the value for stating the first identification field
Memorizer or temporary storage location；
Wherein, first operational parameter control is write the electronic expansion valve controller by the electronic expansion valve controller
After scratch pad memory, re-read and according to the scratch pad memory in first operational parameter control control it is described
Electric expansion valve；First operational parameter control is write the electronic expansion valve controller by the electronic expansion valve controller
Temporary storage location after, according to the temporary storage location in first operational parameter control temporarily control the electric expansion valve.
11. data communication processing methods according to claim 10, it is characterised in that also include：
It is determined that treating the data type of the data from electronic expansion valve controller acquisition；
Second data are generated to data type coding, at least includes indicating the data type in wherein described second data
The second identification field；
By second data is activation to the electronic expansion valve controller so that the electronic expansion valve controller can connect
The value of second identification field after receiving second data, is obtained, and the value according to second identification field is obtained
The data stored in the scratch pad memory of the state parameter or the acquisition electronic expansion valve controller of the electric expansion valve
Afterwards, the data for obtaining are returned into the remote equipment.
12. data communication processing methods according to claim 11, it is characterised in that first data and the second data
With identical data form.
13. data communication processing methods according to claim 12, it is characterised in that also include：
The state parameter that the electronic expansion valve controller is returned is patterned into display processing.
14. data communication processing methods according to claim 11, it is characterised in that from the electronic expansion valve controller
The rear time interval sent to the electronic expansion valve controller between first data for receiving data is more than the time
Thresholding.
A kind of 15. data communication processing methods, for an electronic expansion valve controller, it is characterised in that the electric expansion valve
Controller is connected with a remote equipment by a communication link, and the electronic expansion valve controller can be according to an operation control ginseng
One electric expansion valve of numerical control system, the data communication processing method include：
The first data that the remote equipment is encoded to the first operational parameter control and sent are received, in first data
Including one first identification field；
Parse the value of the first operational parameter control and the first identification field described in first data acquisition；
When the value of first identification field is the first numerical value, first operational parameter control is write into the electronics swollen
After the scratch pad memory of swollen valve control, and control the electronic expansion valve controller and re-read and according to described erasable
First operational parameter control in memorizer controls the electric expansion valve；
When the value of first identification field is second value, first operational parameter control is write into the electronics swollen
After the temporary storage location of swollen valve control, and control the electronic expansion valve controller reading and according to the institute in the temporary storage location
State the first operational parameter control and temporarily control the electric expansion valve.
16. data communication processing methods according to claim 15, it is characterised in that the data communication processing method is also
Including：
The second data for the remote equipment being received to data type coding and being sent, second data include one second mark
Character learning section；
Parse the value of the second identification field described in second data acquisition；
When the value of second identification field is third value, after obtaining the state parameter of the electric expansion valve, by institute
The state parameter for stating electric expansion valve returns the remote equipment；
When the value of second identification field is four numerical value, the erasable storage of the electronic expansion valve controller is read
The operational parameter control of current record in device, the operational parameter control of current record in the scratch pad memory is returned described
Remote equipment.
17. data communication processing methods according to claim 16, it is characterised in that first data and the second data
With identical data form.
18. data communication processing methods according to claim 16, it is characterised in that receive number from the remote equipment
The time interval sent to the remote equipment according to it after between data is more than a time threshold.
19. a kind of electronic expansion valve controllers, it is characterised in that the electronic expansion valve controller passes through a communication link and
Remote equipment connects, and the electronic expansion valve controller can control an electric expansion valve according to an operational parameter control, described
Electronic expansion valve controller includes the data communication processing meanss in claim 6-9 described in any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210247649.4A CN103542157B (en) | 2012-07-16 | 2012-07-16 | Data communication processing method and device and electronic expansion valve controller |
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| CN201210247649.4A CN103542157B (en) | 2012-07-16 | 2012-07-16 | Data communication processing method and device and electronic expansion valve controller |
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| CN103542157B true CN103542157B (en) | 2017-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453531A (en) * | 2003-05-27 | 2003-11-05 | 东南大学 | Electronic expansion valve controller |
| WO2004048864A1 (en) * | 2002-11-21 | 2004-06-10 | Carrier Corporation | Expansion valve control |
| EP2194344A1 (en) * | 2008-12-02 | 2010-06-09 | Carel Industries S.r.l. | Method and control device for controlling a motorized thermostatic valve of a refrigeration machine |
| CN102213509A (en) * | 2011-06-02 | 2011-10-12 | 上海俊乐制冷自控元件有限公司 | Electronic expansion valve |
-
2012
- 2012-07-16 CN CN201210247649.4A patent/CN103542157B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004048864A1 (en) * | 2002-11-21 | 2004-06-10 | Carrier Corporation | Expansion valve control |
| CN1453531A (en) * | 2003-05-27 | 2003-11-05 | 东南大学 | Electronic expansion valve controller |
| EP2194344A1 (en) * | 2008-12-02 | 2010-06-09 | Carel Industries S.r.l. | Method and control device for controlling a motorized thermostatic valve of a refrigeration machine |
| CN102213509A (en) * | 2011-06-02 | 2011-10-12 | 上海俊乐制冷自控元件有限公司 | Electronic expansion valve |
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