CN111162875A - Embedded refrigeration equipment communication method and refrigeration equipment - Google Patents
Embedded refrigeration equipment communication method and refrigeration equipment Download PDFInfo
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- CN111162875A CN111162875A CN201911405663.0A CN201911405663A CN111162875A CN 111162875 A CN111162875 A CN 111162875A CN 201911405663 A CN201911405663 A CN 201911405663A CN 111162875 A CN111162875 A CN 111162875A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0061—Error detection codes
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses an embedded refrigeration equipment communication method and refrigeration equipment, which comprise the following steps: the main control panel and the display panel carry out data initialization so that the main control panel and the display panel are in a passive receiving state; when the main control panel or the display panel sends an instruction to a receiver, the main control panel or the display panel is modified into an active sending state, and data communication is carried out by sending data to the receiver, wherein the receiver is the display panel or the main control panel. The invention abandons the prior real-time communication mode and adopts the communication mode only with requirements, thereby greatly improving the communication efficiency and saving the running time.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an embedded refrigeration equipment communication method and refrigeration equipment.
Background
With the development of refrigerator technology, the communication protocol used on the intelligent refrigerator with display is UART serial communication, the communication mechanism is fixed time transmission, thus, the refrigerator control panel is fixedly transmitted once every 500ms, the display panel is replied once, the communication is frequent, the program operation memory is consumed, the error is easy to occur, the checking mechanism is one-bit 'packet head' and one-bit check sum double check, and the checking mode is simpler.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an embedded refrigeration equipment communication method and refrigeration equipment aiming at the defects of the prior art, so as to solve the problems that the long-time communication error rate of a main control board and a display board of a refrigerator is high, the fixed-time communication occupies the system operation time, and the communication efficiency is low in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an embedded refrigeration equipment communication method comprises the following steps:
the main control panel and the display panel carry out data initialization so that the main control panel and the display panel are in a passive receiving state;
when the main control panel or the display panel sends an instruction to a receiver, the main control panel or the display panel is modified into an active sending state, and data communication is carried out by sending data to the receiver, wherein the receiver is the display panel or the main control panel.
The communication method of the embedded refrigeration equipment comprises the following specific steps of initializing data of the main control board and the display board so as to enable the main control board and the display board to be in a passive receiving state:
the main control board actively sends the state information of the primary refrigeration equipment to the display panel as initialization data, so that the main control board and the display panel are in a passive receiving state.
The embedded refrigeration equipment communication method comprises the steps that the first two bytes of data are fixed header data, the third byte is a command type, the fourth byte to the N-1 bytes are data bits, and the last byte is a checksum, wherein N is the length of a communication byte.
The communication method of the embedded refrigeration equipment is characterized in that the main control board or the display board is modified into an active sending state, and sends data to a receiver for data communication, wherein the receiver is the display board or the main control board and comprises the following components:
the main control board or the display board sends data to a receiver, and the receiver judges whether the first two bytes of the data are preset header data or not;
when the first two bytes of the data are preset header data, the receiver feeds the data back to the sender;
and when the sender receives the feedback data, judging that the communication is successful.
The communication method of the embedded refrigeration equipment, wherein after receiving the feedback data, the sender further comprises the following steps:
the main control panel and the display panel are both placed in a passive receiving state.
The communication method of the embedded refrigeration equipment comprises the following steps:
when the first two bytes of the data are not the preset header data, the sender continuously sends the data to the display panel or the main control panel;
and if the first two bytes of the data are still not the preset packet header data, judging that the communication fails.
The communication method of the embedded refrigeration equipment, wherein if the first two bytes of the data are still not the preset packet header data, the determining that the communication fails at this time specifically includes:
if the first two bytes of the data are still not the preset packet header data, the communication failure is judged, and the main control board sends alarm information.
The communication method of the embedded refrigeration equipment comprises the following steps:
the display panel sends command types to the control panel, and the main control panel carries out setting according to the command types.
An embedded refrigeration appliance, comprising: the display device comprises a main control panel and a display panel, wherein the main control panel and the display panel are both used for carrying out data initialization so as to enable the main control panel and the display panel to be in a passive receiving state; when the main control board sends an instruction to the display panel, the main control board is modified into an active sending state and sends data to the display panel for data communication; when the display panel sends an instruction to the main control panel, the display panel is modified into an active sending state, and sends data to the main control panel for data communication.
Has the advantages that: compared with the prior art, the invention provides an embedded refrigeration equipment communication method and refrigeration equipment, which comprise the following steps: the main control panel and the display panel carry out data initialization so that the main control panel and the display panel are in a passive receiving state; when any direction of the main control board or the display board sends an instruction to a receiver, the main control board or the display board is modified into an active sending state, and data is sent to the receiver for data communication, wherein the receiver is the display board or the main control board. The invention abandons the prior real-time communication mode and adopts the communication mode only with requirements, thereby greatly improving the communication efficiency and saving the running time.
Drawings
Fig. 1 is a flowchart of a communication method of an embedded refrigeration device according to the present invention.
Fig. 2 is a schematic structural diagram of a preferred embodiment of the refrigeration apparatus provided by the present invention.
Detailed Description
The invention provides an embedded refrigeration equipment communication method and refrigeration equipment, and in order to make the purpose, technical scheme and effect of the invention clearer and clearer, the invention is further described in detail below by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention will be further explained by the description of the embodiments with reference to the drawings.
The embodiment provides an embedded refrigeration equipment communication method and refrigeration equipment, and as shown in fig. 1, the method includes:
s100, the main control panel and the display panel carry out data initialization so that the main control panel and the display panel are in a passive receiving state.
Specifically, the data communication format of the main control board and the display panel in the present invention is shown in the following table, for example, the first two bytes of the data are fixed header data (0XAA ), the third byte is a command type, the fourth to N-1 bytes are data bits, and the last byte is a checksum, where N is the length of the communication byte. It should be noted that the communication byte length may be set according to actual requirements, and is not limited specifically here.
Data format | Wrapping head | Wrapping head | Type of command | Data bit data. | Checksum |
Examples of the invention | 0XAA | 0XAA | 0X81 | Number of fixed bits | sum |
Further, the packet header is data fixedly transmitted by the first two bytes in each communication, and is used for identifying and judging the accuracy and the effectiveness of the data. If the first two bytes received are not 0xAA, the communication failure can be judged;
the command type is used for identifying what type of information the communication wants to convey or acquire, for example, if the display panel wants to acquire the temperature of each room from the control panel of the refrigerator, the command type 0x81 can be sent, and if the display panel wants to send the operation command set by the user to the control panel of the refrigerator, the command type 0x82 can be sent;
the data bit contains all valid information which is required to be transmitted by the communication;
the checksum is a checking mechanism for the data information sent this time, and is specifically a sum of N-1 bytes before the communication this time, and then the lower 8 bits of data of the calculated sum this time are taken as the checksum of the communication this time. For example, 1/2/3/4/5 sends several data, and then adds a byte X, where X is 1+2+3+4+5 + 15, then X is the checksum, and the receiving end will add the previous 5 bytes after receiving the data and compare with X, and if equal, the received data is proved to be the pair.
In specific implementation, the initializing data of the main control board and the display board to make both the main control board and the display board in a passive receiving state specifically includes:
the main control board actively sends the state information of the primary refrigeration equipment to the display panel as initialization data, so that the main control board and the display panel are in a passive receiving state.
Specifically, after the refrigeration equipment is powered on, the control board of the refrigeration equipment actively sends the state information of the refrigeration equipment to the display board once as initialization data, then both sides are set to be in a passive receiving state, and at the moment, both sides do not have data communication. The display panel needs to display the state of the refrigeration equipment when the refrigeration equipment is powered on for the first time, so the refrigeration equipment needs to send the initial state to the display panel, and the control panel actively sends state information to the display panel once when the refrigeration equipment is powered on. The status information may be data to be transmitted by the refrigeration equipment, including the temperature of the refrigeration equipment, the alarm status, the operating status of the load, and the like.
S200, when the main control board or the display board sends an instruction to a receiver, the main control board or the display board is modified into an active sending state, and data communication is carried out by sending data to the receiver, wherein the receiver is the display board or the main control board.
Specifically, the present invention does not change from passive to active until one party (main control board or display board) needs to update data or send an instruction, and actively sends the data to the other party, and correspondingly, the main control board or display board is modified to an active sending state, and sends the data to a receiver for data communication, wherein the receiver is the display board or the main control board, and the receiver includes:
s201, the main control board or the display board sends data to a receiver, and the receiver judges whether the first two bytes of the data are preset header data or not;
s202, when the first two bytes of the data are preset packet header data, the receiver feeds the data back to the sender;
and S203, after the sender receives the feedback data, judging that the communication is successful.
Specifically, the receiver of the present invention returns the received data to the sender after receiving the correct data, otherwise, the sender does not feed back the data, and the sender knows that the communication is successful after receiving the feedback data, otherwise, the communication is failed. The receiver returns the received data to the sender after receiving the correct data, otherwise, the data is not fed back, the sender knows that the communication is successful after receiving the feedback data, and otherwise, the communication is failed. After the communication is successful, the two parties are set to be in a passive receiving state again until one party has data updating again, and the process is repeated. The invention abandons the prior real-time communication mode, but adopts the communication mode only when in need, thereby greatly improving the communication efficiency and saving the running time. And moreover, the risk that other interrupts are interrupted by communication interruption is greatly avoided.
Therefore, in an implementation manner of this embodiment, after the sender receives the feedback data, after determining that the communication is successful, the method further includes:
the main control panel and the display panel are both placed in a passive receiving state.
In an implementation manner of this embodiment, the communication method of the embedded refrigeration equipment further includes:
s204, when the first two bytes of the data are not preset header data, the sender continuously sends the data to the display panel or the main control panel;
and S205, if the first two bytes of the data are still not the preset header data, judging that the communication fails.
Specifically, if the first two bytes of the data are still not the preset packet header data, it is determined that the communication fails, and the main control board sends out alarm information. Therefore, the invention can effectively eliminate the communication error information by adopting a question-answering mode, thereby improving the communication quality. Preferably, in this embodiment, since the fault occurs at most outside, for example, the communication line is broken, the transmission is generally continued for 20 times.
In an implementation manner of this embodiment, the communication method of the embedded refrigeration equipment further includes:
s300, the display board sends command types to the control board, and the main control board performs setting according to the command types.
Specifically, the command type is used to identify what type of information the communication wants to communicate or obtain, for example, the display panel wants to obtain the room temperature from the refrigerator control panel, the command type 0x81 may be sent, and the display panel wants to send the operation command set by the user to the refrigerator control panel, the command type 0x82 may be sent. The command type mechanism of the invention can refine the data types, namely, each command type represents that only the data of the command is valid in the level communication, thereby ensuring that the processing of the medal is tighter. And by combining the judgment of the command type and the fixed communication byte length, the receiver does not need to judge the received byte length during each communication, thereby simplifying the program.
The present invention also provides a refrigeration apparatus, as shown in fig. 2, which includes at least one main control panel 100 and a display panel 200, wherein the main control panel 100 and the display panel 200 both perform data initialization, so that both the main control panel 100 and the display panel 200 are in a passive receiving state; when the main control board 100 sends an instruction to the display panel 200, the main control board 100 modifies to an active sending state and sends data to the display panel 200 for data communication; when the display panel 200 transmits an instruction to the main control panel, the display panel 200 is modified into an active transmission state and transmits data to the main control panel 100 for data communication. The invention abandons the prior real-time communication mode and adopts the communication mode only with requirements, thereby greatly improving the communication efficiency and saving the running time.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An embedded refrigeration equipment communication method is characterized by comprising the following steps:
the main control panel and the display panel carry out data initialization so that the main control panel and the display panel are in a passive receiving state;
when the main control panel or the display panel sends an instruction to a receiver, the main control panel or the display panel is modified into an active sending state, and data communication is carried out by sending data to the receiver, wherein the receiver is the display panel or the main control panel.
2. The communication method of the embedded refrigeration equipment according to claim 1, wherein the initializing the data of the main control board and the display board to make both the main control board and the display board in the passive receiving state specifically comprises:
the main control board actively sends the state information of the primary refrigeration equipment to the display panel as initialization data, so that the main control board and the display panel are in a passive receiving state.
3. The communication method of an embedded refrigeration equipment according to claim 1, wherein the first two bytes of the data are fixed header data, the third byte is command type, the fourth to N-1 bytes are data bits, and the last byte is checksum, wherein N is communication byte length.
4. The embedded refrigeration equipment communication method of claim 1, wherein the main control board or the display board is modified to be in an active sending state and sends data to a receiver for data communication, wherein the receiver is the display board or the main control board and comprises:
the main control board or the display board sends data to a receiver, and the receiver judges whether the first two bytes of the data are preset header data or not;
when the first two bytes of the data are preset header data, the receiver feeds the data back to the sender;
and when the sender receives the feedback data, judging that the communication is successful.
5. The communication method of the embedded refrigeration equipment according to claim 4, wherein after the sender receives the feedback data, the method further comprises the following steps after the sender determines that the communication is successful:
the main control panel and the display panel are both placed in a passive receiving state.
6. The communication method for the embedded refrigeration equipment as recited in claim 4, wherein the communication method for the embedded refrigeration equipment further comprises the following steps:
when the first two bytes of the data are not the preset header data, the sender continuously sends the data to the display panel or the main control panel;
and if the first two bytes of the data are still not the preset packet header data, judging that the communication fails.
7. The communication method of claim 6, wherein if the first two bytes of the data are still not the predetermined header data, the determining that the communication has failed specifically comprises:
if the first two bytes of the data are still not the preset packet header data, the communication failure is judged, and the main control board sends alarm information.
8. The communication method for the embedded refrigeration equipment as recited in claim 5, wherein the communication method for the embedded refrigeration equipment further comprises the following steps:
the display panel sends command types to the control panel, and the main control panel carries out setting according to the command types.
9. An embedded refrigeration unit, comprising: the display device comprises a main control panel and a display panel, wherein the main control panel and the display panel are both used for carrying out data initialization so as to enable the main control panel and the display panel to be in a passive receiving state; when the main control board sends an instruction to the display panel, the main control board is modified into an active sending state and sends data to the display panel for data communication; when the display panel sends an instruction to the main control panel, the display panel is modified into an active sending state, and sends data to the main control panel for data communication.
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