CN103542157A - 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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- CN103542157A CN103542157A CN201210247649.4A CN201210247649A CN103542157A CN 103542157 A CN103542157 A CN 103542157A CN 201210247649 A CN201210247649 A CN 201210247649A CN 103542157 A CN103542157 A CN 103542157A
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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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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 industrial control technology field, particularly a kind of data communication processing method, device and electronic expansion valve controller.
Background technique
Electric expansion valve is to regulate vaporizer liquid supply rate according to pre-set programs, regulates pattern, therefore be called electric expansion valve because belonging to electronic type.It has adapted to the electrical integrated demand for development of refrigerator, has the incomparable good characteristic of heating power electric expansion valve, and for the intellectuality of refrigeration system, control condition is provided, be a kind of rising auto-control energy-saving element.
Electric expansion valve, as a kind of novel control unit, is the intelligentized important step of refrigeration system, is the symbol of refrigeration system electromechanical, has been used in increasing field.
The driving mode of electric expansion valve is that controller calculates by the parameter that sensor is collected, and to driving plate, sends regulating command, by driving plate, to electric expansion valve output electrical signals, drives electric expansion valve.
In electronic expansion valve controller, have scratch pad memory, electronic expansion valve controller is controlled electric expansion valve according to the operational parameter control of pre-defined algorithm and scratch pad memory record.
Yet inventor finds in realizing the process of the embodiment of the present invention, existing electronic expansion valve controller can only could be revised operational parameter control after shutting down, for the debugging of equipment inconvenience very.
Illustrate as follows.
Suppose and have 10 groups of operational parameter controls to be tested, commissioning staff cannot confirm the validity of these 10 groups of parameters in advance, now needs successively every group of operational parameter control to be tested to be tested.
In test process, often test one group of data, all need to stop the operation of electric expansion valve and controller, then to scratch pad memory, write next and organize operational parameter control to be tested, then start the test that electric expansion valve and controller carry out this group operational parameter control.
When data to be tested are a lot, above-mentioned scheme is very inconvenient.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of data communication processing method, device and electronic expansion valve controller, realizes the modification of electric expansion valve operational parameter control under outage state not.
To achieve these goals, the embodiment of the present invention provides a kind of data communication treatment device, for a remote equipment, described remote equipment is connected with an electronic expansion valve controller by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication treatment device comprises:
Acquisition module, for obtaining the first operational parameter control that is passed to described electronic expansion valve controller to be passed;
The first coding module, for described the first operational parameter control is encoded, obtains the first data, and wherein said the first data comprise one first identification field;
The first transmitting module, for described the first data being sent to described electronic expansion valve controller by an interface conversion unit, make the described electronic expansion valve controller can be after receiving described the first data, obtain the value of described the first operational parameter control and described the first identification field, and described the first operational parameter control is stored into scratch pad memory or the temporary storage location of described electronic expansion valve controller according to the value of described the first identification field;
Wherein, described electronic expansion valve controller writes described the first operational parameter control after the scratch pad memory of described electronic expansion valve controller, again reads and controls described electric expansion valve according to described the first operational parameter control in described scratch pad memory; Described electronic expansion valve controller writes described the first operational parameter control after the temporary storage location of described electronic expansion valve controller, according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
In order to realize better above-mentioned purpose, the embodiment of the present invention also provides a kind of data communication treatment device, for an electronic expansion valve controller, described electronic expansion valve controller is connected with a remote equipment by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication treatment device comprises:
The first receiving module, first data of the first operational parameter control being encoded and being sent for receiving described remote equipment, described the first data comprise one first identification field;
The first parsing module, for resolving the value of the first operational parameter control and the first identification field described in described the first data acquisition;
The first puocessing module, for when the value of described the first identification field is the first numerical value, described the first operational parameter control is write after the scratch pad memory of described electronic expansion valve controller, and control that described electronic expansion valve controller reads again and control described electric expansion valve according to described the first operational parameter control in described scratch pad memory;
The second puocessing module, for when the value of described the first identification field is second value, described the first operational parameter control is write after the temporary storage location of described electronic expansion valve controller, and control described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
In order to realize better above-mentioned purpose, the embodiment of the present invention also provides a kind of data communication processing method, for a remote equipment, described remote equipment is connected with an electronic expansion valve controller by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication processing method comprises:
Obtain the first operational parameter control that is passed to described electronic expansion valve controller to be passed;
Described the first operational parameter control is encoded, obtain the first data, wherein said the first data comprise one first identification field;
Described the first data are sent to described electronic expansion valve controller, make the described electronic expansion valve controller can be after receiving described the first data, obtain the value of described the first operational parameter control and described the first identification field, and described the first operational parameter control is stored into scratch pad memory or the temporary storage location of described electronic expansion valve controller according to the value of described the first identification field.
Wherein, described electronic expansion valve controller writes described the first operational parameter control after the scratch pad memory of described electronic expansion valve controller, again reads and controls described electric expansion valve according to described the first operational parameter control in described scratch pad memory; Described electronic expansion valve controller writes described the first operational parameter control after the temporary storage location of described electronic expansion valve controller, according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
In order to realize better above-mentioned purpose, the embodiment of the present invention also provides a kind of data communication processing method, for an electronic expansion valve controller, described electronic expansion valve controller is connected with a remote equipment by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication processing method comprises:
Receive the first data that described remote equipment is encoded and sent the first operational parameter control, described the first data comprise one first identification field;
Resolve the value of the first operational parameter control and the first identification field described in described the first data acquisition;
When the value of described the first identification field is the first numerical value, described the first operational parameter control is write after the scratch pad memory of described electronic expansion valve controller, and control that described electronic expansion valve controller reads again and control described electric expansion valve according to described the first operational parameter control in described scratch pad memory;
When the value of described the first identification field is second value, described the first operational parameter control is write after the temporary storage location of described electronic expansion valve controller, and control described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
In order to realize better above-mentioned purpose, the embodiment of the present invention also provides a kind of electronic expansion valve controller, described electronic expansion valve controller is connected with a remote equipment by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described electronic expansion valve controller comprises above-mentioned data communication treatment device.
The embodiment of the present invention at least tool has the following advantages:
The data communication processing method of the embodiment of the present invention, device and electronic expansion valve controller, remote control terminal can send operational parameter control to be modified to electronic expansion valve controller, and by identification field, specify the type of operational parameter control to be modified: interim or permanent, electronic expansion valve controller is after receiving this operational parameter control to be modified, can pass through the preservation position of this parameter of type decided, simultaneously according to scope action time of its this operational parameter control of Type Control, in this process, do not need to stop the operation of electric expansion valve and controller, realize the modification of electric expansion valve operational parameter control under outage state not.
Accompanying drawing explanation
Fig. 1 represents the schematic diagram of the applied environment of the embodiment of the present invention;
The data communication processing method of the embodiment of the present invention that represents Fig. 2 realizes the schematic flow sheet that operational parameter control is revised;
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 treatment device of realizing operational parameter control modification of the embodiment of the present invention;
Fig. 5 represents the structural representation of the data communication treatment device that the realization of the embodiment of the present invention is monitored;
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;
Fig. 8 represents in the data communication processing method of the embodiment of the present invention, the cooperation schematic diagram of the data input and data output between remote equipment and electronic expansion valve controller;
Embodiment
The data communication processing method of the embodiment of the present invention, device and electronic expansion valve controller, remote control terminal can send operational parameter control to be modified to electronic expansion valve controller, and by identification field, specify the type of operational parameter control to be modified: interim or permanent, electronic expansion valve controller is after receiving this operational parameter control to be modified, can be by the preservation position of its this parameter of type decided, simultaneously according to scope action time of its this operational parameter control of Type Control, in this process, do not need to stop the operation of electric expansion valve and controller, realize the modification of electric expansion valve operational parameter control under outage state not.
The applied environment of the embodiment of the present invention as shown in Figure 1, wherein remote equipment 101 is connected with an electronic expansion valve controller 102 by a communication link, described electronic expansion valve controller 102 can be controlled an electric expansion valve 103 according to an operational parameter control, wherein, remote equipment 101 is by a communication link and an electronic expansion valve controller 102, wherein, described data communication processing method in the processing of remote equipment end as shown in Figure 2, comprising:
Step 201, remote equipment 101 obtains the first operational parameter control that is passed to described electronic expansion valve controller to be passed;
Step 202, remote equipment is encoded to described the first operational parameter control, obtains the first data, and wherein said the first data comprise one first identification field;
Step 203, remote equipment sends to described electronic expansion valve controller by described the first data, make the described electronic expansion valve controller can be after receiving described the first data, obtain the value of described the first operational parameter control and described the first identification field, and described the first operational parameter control is stored into scratch pad memory or the temporary storage location of described electronic expansion valve controller according to the value of described the first identification field.
Described data communication processing method in the processing of electronic expansion valve controller end as shown in Figure 2, comprising:
Step 204, electronic expansion valve controller receives the first data that described remote equipment is encoded and sent the first operational parameter control, and described the first data comprise one first identification field;
Step 205, electronic expansion valve controller is resolved the value of the first operational parameter control and the first identification field described in described the first data acquisition;
Step 206, when the value of described the first identification field is the first numerical value, described the first operational parameter control is write after the scratch pad memory of described electronic expansion valve controller, and control that described electronic expansion valve controller reads again and control described electric expansion valve according to described the first operational parameter control in described scratch pad memory;
Step 207, when the value of described the first identification field is second value, described the first operational parameter control is write after the temporary storage location of described electronic expansion valve controller, and control described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
In the data communication processing method of the embodiment of the present invention, remote control terminal can send operational parameter control to be modified to electronic expansion valve controller, and by identification field, specify the type of operational parameter control to be modified: interim or permanent, electronic expansion valve controller is after receiving this operational parameter control to be modified, can pass through the preservation position of this parameter of type decided, simultaneously according to scope action time of its this operational parameter control of Type Control, in this process, because electronic expansion valve controller only need to read the operational parameter control that remote control terminal sends over again, and utilize it to replace the old parameter in original control strategy, electronic expansion valve controller can be controlled electric expansion valve according to new parameter, do not need to stop the operation of electric expansion valve and controller, therefore realize not the modification to electric expansion valve operational parameter control in long-range mode under outage state.
And simultaneously, in the data communication processing method of the embodiment of the present invention, by increasing by first identification field, can carry out different control to operational parameter control to be modified processes, as the preferably operational parameter control for having determined, by the value of described the first identification field, be the first numerical value, electronic expansion valve controller can directly write described the first operational parameter control the scratch pad memory of described electronic expansion valve controller, foundation as this and subsequent control electric expansion valve, and for the operational parameter control of performance to be determined, by the value of described the first identification field, be second value, electronic expansion valve controller can write temporary storage location by the first operational parameter control, as the foundation that ought control for the previous period electric expansion valve, the follow-up performance that also needs to judge according to operation result this operational parameter control.
Therefore, the data communication processing method of the embodiment of the present invention, by increasing a simple identification field, has realized the different control to different running control parameter and has processed, and has improved the flexibility of the modification of electric expansion valve operational parameter control under outage state not.
In the middle of electronic expansion valve controller, the main operational parameter control relating to includes but not limited to following parameter:
Scaling factor, integral coefficient, differential coefficient, sampling number, retention time, the target degree of superheat, expansion valve target aperture etc.
In specific embodiments of the invention, at remote equipment, above-mentioned operational parameter control can and arrange by user's manual tune.Operational parameter control after regulating can send to electronic expansion valve controller via communication link, sends in the lump the identification information of operational parameter control simultaneously.In this case, electronic expansion valve controller meeting foundation sign is updated to existing operational parameter control the operational parameter control after the adjusting receiving in real time, has realized the operational parameter control adjusting in the situation that not out of service.
The above-mentioned data communication processing method of the embodiment of the present invention can realize the modification of electric expansion valve operational parameter control under outage state not; but in some cases; as remote equipment need to be known the state that electric expansion valve is current, or need to know the operational parameter control of the current control electric expansion valve of electronic expansion valve controller.
The above-mentioned data communication processing method of the embodiment of the present invention as shown in Figure 3, also comprises in the processing of remote equipment end:
Processing at electronic expansion valve controller end also comprises:
Under this mode, remote equipment is when running state, electronic expansion valve controller can send the operational parameter control of electronic expansion valve controller or the status parameter of electric expansion valve to remote equipment in real time according to the demand of remote equipment, and the operational parameter control that remote equipment shows or status parameter can be along with the data real-time update of communication link transmission, can obtain up-to-date, status information the most accurately.
And simultaneously, in the data communication processing method of the embodiment of the present invention, by increasing by second identification field, can make electronic expansion valve controller can send different data, by an instruction, can realize the supervision to different conditions, improved the flexibility ratio of monitoring, the difficulty that also reduction system realizes.
In specific embodiments of the invention, the status parameter of this electric expansion valve includes but not limited to following parameter: the various parameters that can collect by being arranged at the sensor of electric expansion valve one end such as compressor air suction temperature, indoor heat exchanger temperature, outdoor heat exchanger temperature, the corresponding saturation temperature of pressure, compressor state, four-way valve state, defrost state, the current aperture of electric expansion valve, the current degree of superheat of electric expansion valve.
In specific embodiments of the invention, this data communication processing method also comprises: the status parameter that described electronic expansion valve controller is returned carries out graphical Graphics Processing, makes user can more intuitively determine the working state of electric expansion valve.
Simultaneously remote equipment after described electronic expansion valve controller receives data to described electronic expansion valve controller send between described the first data interval greater than a time threshold.
In the specific embodiment of the invention, when remote equipment can be realized for the modification of parameter with to the monitoring of controller end simultaneously, relate to transmission the first data and the second data to electronic expansion valve controller, in specific embodiments of the invention, the first data and the second data can be used identical form, a field are set therein for indicating following 4 kinds of situations:
Obtain the status parameter of electric expansion valve;
The permanent operational parameter control of revising;
The temporary transient operational parameter control of revising;
Read the operational parameter control of current record in scratch pad memory.
Be described in detail as follows:
When the value of this identification field is 0, be condition monitoring pattern.
Electronic expansion valve controller returns in real time remote equipment after obtaining the status parameter of electric expansion valve, remote equipment by the data that receive after treatment, by interface display out.Carry out in this way the real-time monitoring of status information, also can observe parameter information simultaneously.
When the value of this identification field is 1, be temporary transient modification operational parameter control.
Remote equipment regulates operational parameter control by operation, sends in electronic expansion valve controller.After electronic expansion valve controller receives, temporary parameter, and be the operational parameter control receiving by the existing operational parameter control real-time update of system operation.Under this pattern, the status information that remote equipment simultaneously also can real-time monitoring system.
When the value of this identification field is 2, be permanent modification operational parameter control.
Remote equipment regulates operational parameter control by operation, sends in electronic expansion valve controller.After electronic expansion valve controller receives, revise the data in scratch pad memory, and be the operational parameter control receiving by the existing operational parameter control real-time update of system operation.Under this pattern, the status information that remote equipment simultaneously also can real-time monitoring system.
When the value of this identification field is 3, be the operational parameter control that reads current record in scratch pad memory.
After electronic expansion valve controller receives, read the data in scratch pad memory, and the data of reading are divided into several frames, be progressively transferred in computer, computer will be presented in interface with tabular form after the data reduction receiving.
Certainly, below be only for example, the value that the embodiment of the present invention can also arrange other realizes the combination of above-mentioned 4 kinds of situations, in the time of as permanent modification operational parameter control, obtain the status parameter of electric expansion valve, when and for example obtaining the status parameter of electric expansion valve, read the operational parameter control of current record in scratch pad memory, in this illustrated in greater detail one by one not.
As shown in Figure 4, wherein the data communication treatment device of remote equipment end comprises for the remote equipment end of the embodiment of the present invention and the data communication treatment device of electronic expansion valve controller end:
Acquisition module, for obtaining the first operational parameter control that is passed to described electronic expansion valve controller to be passed;
The first coding module, for described the first operational parameter control is encoded, obtains the first data, and wherein said the first data comprise one first identification field;
The first transmitting module, for described the first data being sent to described electronic expansion valve controller by an interface conversion unit, make the described electronic expansion valve controller can be after receiving described the first data, obtain the value of described the first operational parameter control and described the first identification field, and described the first operational parameter control is stored into scratch pad memory or the temporary storage location of described electronic expansion valve controller according to the value of described the first identification field;
The data communication treatment device of electronic expansion valve controller end comprises:
The first receiving module, first data of the first operational parameter control being encoded and being sent for receiving described remote equipment, described the first data comprise one first identification field;
The first parsing module, for resolving the value of the first operational parameter control and the first identification field described in described the first data acquisition;
The first puocessing module, for when the value of described the first identification field is the first numerical value, described the first operational parameter control is write after the scratch pad memory of described electronic expansion valve controller, and control that described electronic expansion valve controller reads again and control described electric expansion valve according to described the first operational parameter control in described scratch pad memory;
The second puocessing module, for when the value of described the first identification field is second value, described the first operational parameter control is write after the temporary storage location of described electronic expansion valve controller, and control described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
The above-mentioned data communication treatment device of the embodiment of the present invention can be realized the modification of electric expansion valve operational parameter control under outage state not; but in some cases; as remote equipment need to be known the state that electric expansion valve is current, or need to know the operational parameter control of the current control electric expansion valve of electronic expansion valve controller.
The above-mentioned data communication treatment device of the embodiment of the present invention as shown in Figure 5, also comprises at remote equipment end:
Type determination module, for determining the data type treat the data obtained from described electronic expansion valve controller;
The second coding module, for described data type coding is generated to the second data, at least comprises second identification field of indicating described data type in wherein said the second data;
The second transmitting module, for described the second data are sent to described electronic expansion valve controller, make the described electronic expansion valve controller can be after receiving described the second data, obtain the value of described the second identification field, and obtain the status parameter of described electric expansion valve or obtain after the data of storing in the scratch pad memory of described electronic expansion valve controller according to the value of described the second identification field, the data of obtaining are returned to described remote equipment.
Electronic expansion valve controller end also comprises:
The second receiving module, for receiving second data of described remote equipment to data type coding transmission, described the second data comprise one second identification field;
The second parsing module, for resolving the value of the second identification field described in described the second data acquisition;
The 3rd puocessing module, while being third value for the value when described the second identification field, obtains after the status parameter of described electric expansion valve, and the status parameter of described electric expansion valve is returned to described remote equipment;
The 4th puocessing module, for when the value of described the second identification field is the 4th numerical value, the operational parameter control that reads current record in the scratch pad memory of described electronic expansion valve controller, returns to the operational parameter control of current record in described scratch pad memory to described remote equipment.
Should be understood that, in the method for the embodiment of the present invention, device, for the modification of parameter with can independently exist the monitoring of controller end, also can combine operation, illustrate as follows below.
As shown in Figure 6, in conjunction with the modification for parameter with to a kind of concrete scheme of the monitoring of controller end, comprise:
Remote equipment sends to described electronic expansion valve controller by the first data; Comprising the first operational parameter control, and the first identification field is second value;
Electronic expansion valve controller is resolved the value of the first operational parameter control and the first identification field described in described the first data acquisition;
Because the first identification field is second value, electronic expansion valve controller writes described the first operational parameter control after the temporary storage location of described electronic expansion valve controller, and controls described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location;
After a period of time, remote equipment sends to described electronic expansion valve controller by described the second data, and the value of assignment the second identification field is third value;
Described electronic expansion valve controller obtains after the status parameter of described electric expansion valve, and the status parameter of described electric expansion valve is returned to described remote equipment;
User finds that by the demonstration of remote equipment the status parameter of electric expansion valve is undesirable, and the first data are sent to described electronic expansion valve controller; Comprising the second operational parameter control, and the first identification field is second value;
Because the first identification field is second value, electronic expansion valve controller writes described the second operational parameter control after the temporary storage location of described electronic expansion valve controller, and controls described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the second operational parameter control in described temporary storage location;
When user finds that by the demonstration of remote equipment the status parameter of electric expansion valve meets the requirements, the first data are sent to described electronic expansion valve controller; Comprising the second operational parameter control, and the first identification field is the first numerical value;
Because the first identification field is the first numerical value, electronic expansion valve controller writes described the first operational parameter control after the scratch pad memory of described electronic expansion valve controller, and controls described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of the operational parameter control in described scratch pad memory.
Should be understood that, above-mentioned is only a kind of illustrating, and the modification for parameter of the embodiment of the present invention and can also be other mode to the combination of the monitoring of controller end does not enumerate at this.
In addition, the remote equipment of the embodiment of the present invention also comprises a log pattern, for record communication data, and recorded information is presented on interface with visual means (as list or figure).In this way, in monitoring current state and parameter, can also monitor intuitively the variation tendency of selected state and parameter.
Illustrate as follows.
When communication is carried out, communication data is carried out to selectivity record, selectivity record carries out record according to the time lag and partial data, for example every 1s or 1h, record a secondary data, only record 2 to n or 4 to m data, and record data are kept in daily record with CSV form, easy-to-operat person consult.And can daily record data be presented on operation interface with list or figure (curve or bar chart etc.) mode by operation, and along with real-time update is carried out in communication.With this, realized the demonstration directly perceived to the historical variations process of state and parameter and trend.
In specific embodiments of the invention, electronic expansion valve controller need to obtain the status parameter of electric expansion valve and return to remote equipment, now electronic expansion valve controller comes from electric expansion valve reading state parameter by the interface arranging on it, as shown in Figure 7, comprising: defrosting, Subcoold temperature monitor-interface, pressure sensor interface, temperature sensor interface etc., MCU is by these sensor reading state parameters, then by COM1, return to remote equipment, form as for transmission can adopt existing various form, as the data volume of each frame data of data communication can be set voluntarily, the implication of each data representative can be set voluntarily, the accuracy that can comprise the data that a check bit is transmitted with check in each data, each frame data also comprises that a check code is to check the accuracy of the data of each frame.
In specific embodiments of the invention, remote equipment after described electronic expansion valve controller receives data to described electronic expansion valve controller send between described the first data interval greater than a time threshold.And the time lag that electronic expansion valve controller sends between data to remote equipment after remote equipment receives data is also greater than a time threshold.
As shown in Figure 8, for being applied to a kind of schematic diagram of data sending/receiving of the method for the embodiment of the present invention.Wherein, the time lag that electronic expansion valve controller sends between data to remote equipment after remote equipment receives data is 100ms, and the time lag that remote equipment sends between data to described electronic expansion valve controller after electronic expansion valve controller receives data is 100ms.
Further the method and apparatus of the embodiment of the present invention is elaborated below.
Between remote equipment and electronic expansion valve controller, can adopt various existing communication protocol to communicate, in the specific embodiment of the invention, wherein a kind of preferred mode is that half-duplex asynchronous serial communication mode communicates, wherein baud rate is 600BPS, 8bit data bit, start bit is 1bit low level, and stop bits is 2bit high level.
In the specific embodiment of the invention, between remote equipment and electronic expansion valve controller, can adopt identical data format, wherein a kind of concrete data format is as shown in the table:
| First code | Address code | Information code | Data length | Data 1 | ...... | Data n | End code | Check code |
For above field, be described as follows:
First code: for the field that shows that this data transfer starts;
Address code: be used to indicate EPROM address to be operated.
Information code: for showing transmit leg, communication data attribute (command frame, status frames, parameter frame);
Data length: show that this frame is from data 1 to total how many data of data N mono-;
Data 1～data n is used for carrying communication data;
End code: for showing the field of this DTD;
Check code: negate after not being with carry to be added to end code address code.
Between remote equipment and electronic expansion valve controller, during data transmission, when receiving the same data information of beaming back, be considered as sending successfully, continue to transmit next frame data; Otherwise again transmit the row data.But in the situation of continuous 6 the same Frames of sending/receiving of any one party, communication stops, report communication failure.
And under the monitoring mode, cannot receive correct data from electronic expansion valve controller and surpass certain hour and communicate by letter and stop, report communication failure.
The embodiment of the present invention also provides a kind of electronic expansion valve controller, and comprising the data communication treatment device that is arranged at electronic expansion valve controller end of describing before, no further details to be given herein.
The above is only embodiments of the present invention; it should be pointed out that for those skilled in the art, 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 considered as protection scope of the present invention.
Claims (19)
1. a data communication treatment device, for a remote equipment, it is characterized in that, described remote equipment is connected with an electronic expansion valve controller by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication treatment device comprises:
Acquisition module, for obtaining the first operational parameter control that is passed to described electronic expansion valve controller to be passed;
The first coding module, for described the first operational parameter control is encoded, obtains the first data, and wherein said the first data comprise one first identification field;
The first transmitting module, for described the first data being sent to described electronic expansion valve controller by an interface conversion unit, make the described electronic expansion valve controller can be after receiving described the first data, obtain the value of described the first operational parameter control and described the first identification field, and described the first operational parameter control is stored into scratch pad memory or the temporary storage location of described electronic expansion valve controller according to the value of described the first identification field;
Wherein, described electronic expansion valve controller writes described the first operational parameter control after the scratch pad memory of described electronic expansion valve controller, again reads and controls described electric expansion valve according to described the first operational parameter control in described scratch pad memory; Described electronic expansion valve controller writes described the first operational parameter control after the temporary storage location of described electronic expansion valve controller, according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
2. data communication treatment device according to claim 1, is characterized in that, also comprises:
Type determination module, for determining the data type treat the data obtained from described electronic expansion valve controller;
The second coding module, for described data type coding is generated to the second data, at least comprises second identification field of indicating described data type in wherein said the second data;
The second transmitting module, for described the second data are sent to described electronic expansion valve controller, make the described electronic expansion valve controller can be after receiving described the second data, obtain the value of described the second identification field, and obtain the status parameter of described electric expansion valve or obtain after the data of storing in the scratch pad memory of described electronic expansion valve controller according to the value of described the second identification field, the data of obtaining are returned to described remote equipment.
3. data communication treatment device according to claim 2, is characterized in that, described the first data and the second data have identical data format.
4. data communication treatment device according to claim 2, is characterized in that, also comprises:
Graphics Processing module, carries out graphical Graphics Processing for the status parameter that described electronic expansion valve controller is returned.
5. data communication treatment device according to claim 2, is characterized in that, after described electronic expansion valve controller receives data to described electronic expansion valve controller send between described the first data interval greater than a time threshold.
6. a data communication treatment device, for an electronic expansion valve controller, it is characterized in that, described electronic expansion valve controller is connected with a remote equipment by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication treatment device comprises:
The first receiving module, first data of the first operational parameter control being encoded and being sent for receiving described remote equipment, described the first data comprise one first identification field;
The first parsing module, for resolving the value of the first operational parameter control and the first identification field described in described the first data acquisition;
The first puocessing module, for when the value of described the first identification field is the first numerical value, described the first operational parameter control is write after the scratch pad memory of described electronic expansion valve controller, and control that described electronic expansion valve controller reads again and control described electric expansion valve according to described the first operational parameter control in described scratch pad memory;
The second puocessing module, for when the value of described the first identification field is second value, described the first operational parameter control is write after the temporary storage location of described electronic expansion valve controller, and control described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
7. data communication treatment device according to claim 6, is characterized in that, also comprises:
The second receiving module, for receiving second data of described remote equipment to data type coding transmission, described the second data comprise one second identification field;
The second parsing module, for resolving the value of the second identification field described in described the second data acquisition;
The 3rd puocessing module, while being third value for the value when described the second identification field, obtains after the status parameter of described electric expansion valve, and the status parameter of described electric expansion valve is returned to described remote equipment;
The 4th puocessing module, for when the value of described the second identification field is the 4th numerical value, the operational parameter control that reads current record in the scratch pad memory of described electronic expansion valve controller, returns to the operational parameter control of current record in described scratch pad memory to described remote equipment.
8. data communication treatment device according to claim 7, is characterized in that, described the first data and the second data have identical data format.
9. data communication treatment device according to claim 8, is characterized in that, after described remote equipment receives data to described remote equipment send between described data interval greater than a time threshold.
10. a data communication processing method, for a remote equipment, it is characterized in that, described remote equipment is connected with an electronic expansion valve controller by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication processing method comprises:
Obtain the first operational parameter control that is passed to described electronic expansion valve controller to be passed;
Described the first operational parameter control is encoded, obtain the first data, wherein said the first data comprise one first identification field;
Described the first data are sent to described electronic expansion valve controller, make the described electronic expansion valve controller can be after receiving described the first data, obtain the value of described the first operational parameter control and described the first identification field, and described the first operational parameter control is stored into scratch pad memory or the temporary storage location of described electronic expansion valve controller according to the value of described the first identification field.
Wherein, described electronic expansion valve controller writes described the first operational parameter control after the scratch pad memory of described electronic expansion valve controller, again reads and controls described electric expansion valve according to described the first operational parameter control in described scratch pad memory; Described electronic expansion valve controller writes described the first operational parameter control after the temporary storage location of described electronic expansion valve controller, according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
11. data communication processing methods according to claim 10, is characterized in that, also comprise:
Determine the data type treat the data obtained from described electronic expansion valve controller;
Described data type coding is generated to the second data, in wherein said the second data, at least comprise second identification field of indicating described data type;
Described the second data are sent to described electronic expansion valve controller, make the described electronic expansion valve controller can be after receiving described the second data, obtain the value of described the second identification field, and obtain the status parameter of described electric expansion valve or obtain after the data of storing in the scratch pad memory of described electronic expansion valve controller according to the value of described the second identification field, the data of obtaining are returned to described remote equipment.
12. data communication processing methods according to claim 11, is characterized in that, described the first data and the second data have identical data format.
13. data communication processing methods according to claim 12, is characterized in that, also comprise:
The status parameter that described electronic expansion valve controller is returned carries out graphical Graphics Processing.
14. data communication processing methods according to claim 11, is characterized in that, after described electronic expansion valve controller receives data to described electronic expansion valve controller send between described the first data interval greater than a time threshold.
15. 1 kinds of data communication processing methods, for an electronic expansion valve controller, it is characterized in that, described electronic expansion valve controller is connected with a remote equipment by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described data communication processing method comprises:
Receive the first data that described remote equipment is encoded and sent the first operational parameter control, described the first data comprise one first identification field;
Resolve the value of the first operational parameter control and the first identification field described in described the first data acquisition;
When the value of described the first identification field is the first numerical value, described the first operational parameter control is write after the scratch pad memory of described electronic expansion valve controller, and control that described electronic expansion valve controller reads again and control described electric expansion valve according to described the first operational parameter control in described scratch pad memory;
When the value of described the first identification field is second value, described the first operational parameter control is write after the temporary storage location of described electronic expansion valve controller, and control described electronic expansion valve controller and read also according to the described electric expansion valve of the temporary transient control of described the first operational parameter control in described temporary storage location.
16. data communication processing methods according to claim 15, is characterized in that, described data communication processing method also comprises:
Receive second data of described remote equipment to data type coding transmission, described the second data comprise one second identification field;
Resolve the value of the second identification field described in described the second data acquisition;
When the value of described the second identification field is third value, obtain after the status parameter of described electric expansion valve, the status parameter of described electric expansion valve is returned to described remote equipment;
When the value of described the second identification field is the 4th numerical value, the operational parameter control that reads current record in the scratch pad memory of described electronic expansion valve controller, returns to the operational parameter control of current record in described scratch pad memory to described remote equipment.
17. data communication processing methods according to claim 16, is characterized in that, described the first data and the second data have identical data format.
18. data communication processing methods according to claim 16, is characterized in that, after described remote equipment receives data to described remote equipment send between described data interval greater than a time threshold.
19. 1 kinds of electronic expansion valve controllers, it is characterized in that, described electronic expansion valve controller is connected with a remote equipment by a communication link, described electronic expansion valve controller can be controlled an electric expansion valve according to an operational parameter control, and described electronic expansion valve controller comprises the data communication treatment device described in any one in claim 6-9.
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106572113A (en) * | 2016-11-10 | 2017-04-19 | 全球能源互联网研究院 | System and method for generating compliance rule of IEC62351 secure transmission protocols based on TTCN-3 language |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6711911B1 (en) * | 2002-11-21 | 2004-03-30 | Carrier Corporation | Expansion valve control |
| CN1216259C (en) * | 2003-05-27 | 2005-08-24 | 东南大学 | Electronic expansion valve controller |
| ITPD20080355A1 (en) * | 2008-12-02 | 2010-06-03 | Carel S P A | OPTIMIZED CONTROL PROCEDURE OF A MOTORIZED THERMOSTATIC VALVE OF A REFRIGERATED MACHINE EQUIPPED WITH A CYCLIC PUMPING COMPRESSOR AND A CONTROL DEVICE THAT ACTIVATES IT |
| CN102213509B (en) * | 2011-06-02 | 2017-04-12 | 上海俊乐制冷自控元件有限公司 | Electronic expansion valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106572113A (en) * | 2016-11-10 | 2017-04-19 | 全球能源互联网研究院 | System and method for generating compliance rule of IEC62351 secure transmission protocols based on TTCN-3 language |
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