CN106199381B - Automatic detection method and device for variable frequency air conditioner mainboard - Google Patents
Automatic detection method and device for variable frequency air conditioner mainboard Download PDFInfo
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- CN106199381B CN106199381B CN201610522304.3A CN201610522304A CN106199381B CN 106199381 B CN106199381 B CN 106199381B CN 201610522304 A CN201610522304 A CN 201610522304A CN 106199381 B CN106199381 B CN 106199381B
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- 238000001514 detection method Methods 0.000 title claims abstract description 139
- 230000006854 communication Effects 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000006870 function Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2825—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere in household appliances or professional audio/video equipment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2803—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP] by means of functional tests, e.g. logic-circuit-simulation or algorithms therefor
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Abstract
The invention discloses an automatic detection method and device for a variable frequency air conditioner mainboard, wherein the detection method is mainly characterized in that mainboard information and program information are added in the communication between the variable frequency air conditioner mainboard and a detection tool according to the communication characteristics of an internal machine and an external machine of a variable frequency air conditioner, the mainboard information and the program information are collected and compared and judged in the detection tool, the automatic detection of the mainboard information and the program information is finally realized, the detection efficiency is improved, the problems of mainboard material mixing, burning errors, missing detection and erroneous judgment and the like in the production process of the mainboard are solved, and the automatic detection method and device are high in accuracy, convenient to operate and fast.
Description
Technical Field
The invention relates to the technical field of variable frequency air conditioners, in particular to an automatic detection method and device for a mainboard of a variable frequency air conditioner.
Background
Under the general condition, inverter air conditioner all contains two mainboards of interior machine, outer machine, and two mainboards exchange data through the mode of communication, realize the control to inverter air conditioner, and interior outer mainboard must match just can realize normal communication. In addition, the external machine main board is usually provided with an EEPROM (electrically erasable and programmable read only memory) chip for storing compressor driving parameters and other control parameters, and these parameters must be strictly matched with the main program and the compressor for use, that is, in one whole machine, the internal machine main board and the external machine main board, the internal machine main program and the external machine EEPROM program must be matched for use, and the mixed matching condition cannot occur.
At present in the production process of mainboard, mainly use test fixture to detect the function of mainboard, nevertheless have following not enoughly:
1) the mainboard information is only detected visually by manpower, so that missing detection and erroneous judgment are easy to occur, mixed materials in the production process are not detected, and the wrong mainboard flows to a final assembly workshop;
2) program information cannot be detected, chip program burning errors or mixed materials are not detected, so that collocation errors or version errors are caused, and closed-loop control is not formed.
Disclosure of Invention
The invention mainly aims to provide an automatic detection method and device for a variable frequency air conditioner mainboard, and aims to solve the problems that in the production process of the mainboard, the mainboard information is detected only through manual visualization to cause missed detection and erroneous judgment, and program information cannot be detected to cause burning errors or mixing.
In order to achieve the above object, the present invention provides an automatic detection method for a motherboard of a variable frequency air conditioner, comprising the following steps:
the method comprises the steps that a variable frequency air conditioner mainboard reads mainboard information and program information and communicates with a detection tool;
sending the mainboard information and the program information to a detection tool;
and comparing and judging the mainboard information and the program information with preset information.
Further, in the step of comparing and judging the main board information and the program information with the preset information,
if the comparison and judgment are consistent, other function detection is continued until the detection is finished;
and if the comparison and judgment are inconsistent, giving an alarm prompt and finishing the detection.
Further, before the step of comparing and judging the motherboard information and the program information with preset information, the method further includes:
judging whether the detection tool receives the mainboard information and the program information,
if yes, the step of judging whether the mainboard information and the program information are consistent with the preset information is carried out,
if not, alarming prompt is carried out, and detection is finished.
Further, the mainboard information is a mainboard code; the program information includes a main program code, a main program version, an EEPROM code and an EEPROM version.
Further, the mainboard code, the EEPROM code and the EEPROM version are stored in the EEPROM chip; and the main program code and the main program version are stored in a FLASH of the main chip.
Further, the detection tool is connected with an indicator lamp and a buzzer, and the indicator lamp and the buzzer are used for giving an alarm in the detection process.
The invention also provides a detection device for the variable frequency air conditioner mainboard, which comprises:
the information reading module is used for reading the mainboard information and the program information of the variable frequency air conditioner;
the communication module is used for sending the mainboard information and the program information read by the information reading module to the detection tool;
and the identification module is used for judging whether the mainboard information and the program information sent by the communication module are consistent with the preset information.
Further, the detection device further comprises:
the detection module is used for judging whether the detection tool receives the mainboard information and the program information sent by the communication module;
and the alarm module is used for giving an alarm prompt in the detection process of the detection tool.
Further, the mainboard information is a mainboard code; the program information includes a main program code, a main program version, an EEPROM code and an EEPROM version.
Further, the mainboard code, the EEPROM code and the EEPROM version are stored in the EEPROM chip; and the main program code and the main program version are stored in a FLASH of the main chip.
According to the automatic detection method and device for the variable frequency air conditioner mainboard, the mainboard information and the program information are added in the communication between the variable frequency air conditioner mainboard and the detection tool according to the communication characteristics of the variable frequency air conditioner internal and external machines, the collection and comparison judgment of the mainboard information and the program information are carried out in the detection tool, the automatic detection of the mainboard information and the program information is finally realized, the problems of mainboard material mixing, burning errors, missing detection and erroneous judgment and the like in the production process of the mainboard are solved while the detection efficiency is improved, and the automatic detection method and device are high in accuracy and convenient and rapid to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a flowchart illustrating an embodiment of an automatic detection method for a motherboard of a variable frequency air conditioner according to the present invention;
fig. 2 is a block diagram of an embodiment of an automatic detection device for a main board of a variable frequency air conditioner according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating an embodiment of an automatic detection method for a motherboard of an inverter air conditioner, where in the embodiment, the automatic detection method for the motherboard of the inverter air conditioner includes the following steps:
s1: the method comprises the steps that a variable frequency air conditioner mainboard reads mainboard information and program information and communicates with a detection tool;
s2: adding mainboard information and program information in communication data;
s3: judging whether the detection tool receives the mainboard information and the program information, if so, executing step S4, otherwise, executing step S6;
s4: comparing and judging the mainboard information and the program information with preset information, if the comparison and judgment are consistent, executing step S5, and if the comparison and judgment are inconsistent, executing step S6;
s5: continuing to perform other function detection;
s6: carrying out alarm prompt;
s7: and finishing the detection.
According to the method for detecting the mainboard information and the program information of the variable frequency air conditioner, when the variable frequency air conditioner mainboard to be detected is detected, the variable frequency air conditioner mainboard to be detected is firstly connected to the detection tool, the variable frequency air conditioner mainboard reads the mainboard information and the program information attached to the variable frequency air conditioner mainboard, and the variable frequency air conditioner mainboard is communicated with the detection tool through a communication line or a communication circuit. In the communication process, the mainboard information and the program information read by the variable frequency air conditioner mainboard are packaged and added into communication data, so that the detection tool can read and recognize the mainboard information and the program information. In the detection process, in order to ensure the accuracy of detection, monitoring the mainboard information and the program information in a segmented manner, firstly ensuring that a detection tool can receive the mainboard information data and the program information data transmitted by the variable frequency air conditioner mainboard, and otherwise, immediately giving an alarm prompt to end the detection of the variable frequency air conditioner mainboard; after confirming that the detection tool receives the mainboard information and the program information, the detection enters a comparison stage, the mainboard information and the program information of the air conditioner variable frequency mainboard to be detected are firstly input as templates before the detection, or a database is established in the detection tool, the templates stored in the database are referred to for comparison during the detection, and if the received mainboard information and the received program information are consistent with the template information through comparison, the subsequent other function detection is carried out to complete the detection; and if the received mainboard information and the program information are inconsistent with the template information through comparison, giving an alarm prompt and finishing detection.
Other function detection includes but is not limited to the detection that the variable frequency air conditioner mainboard carries out operating frequency respectively under heating and refrigeration mode to and the analog pressure detection behind the compressor with the variable frequency air conditioner mainboard connection.
According to the automatic detection method for the variable frequency air conditioner mainboard, the mainboard information and the program information are added in the communication between the variable frequency air conditioner mainboard and the detection tool, the collection, comparison and judgment of the mainboard information and the program information are carried out in the detection tool, the automatic detection of the mainboard information and the program information is finally realized, the problems of mainboard mixing, burning errors, missed detection and misjudgment and the like in the production process of the mainboard are solved while the detection efficiency is improved, and the automatic detection method is high in accuracy, convenient to operate and fast.
Further, the mainboard information is a mainboard code; the program information includes a main program code, a main program version, an EEPROM code and an EEPROM version.
According to the automatic detection method of the variable frequency air conditioner mainboard, the mainboard information read by the variable frequency air conditioner mainboard is the code of the variable frequency air conditioner mainboard, namely the product serial number of the mainboard, so that parameter reading of the variable frequency air conditioner applying the mainboard is facilitated when the mainboard is tracked and maintained at a later stage; the program information read by the variable frequency air conditioner mainboard comprises a main program code, a main program version, an EEPROM code and an EEPROM version, and program upgrading and EEPROM chip replacement are conveniently carried out on the mainboard.
Further, the mainboard code, the EEPROM code and the EEPROM version are stored in the EEPROM chip; and the main program code and the main program version are stored in a FLASH of the main chip.
According to the automatic detection method of the variable frequency air conditioner mainboard, when the variable frequency air conditioner mainboard is communicated with the detection tool, mainboard information, EEPROM codes and EEPROM versions are stored in the EEPROM chip, so that the success rate of transmission is ensured, other interference is reduced, the space capacity of the EEPROM is large, and the running speed of the EEPROM is not influenced; and the main program code and the main program version are stored in the FLASH of the main chip, so that the damage to the main program code and the main program version information after power failure is avoided, and the main program code and the main program version information can be quickly stored.
Further, the detection tool is connected with an indicator lamp and a buzzer, and the indicator lamp and the buzzer are used for giving an alarm in the detection process.
According to the automatic detection method of the variable frequency air conditioner mainboard, one end of the detection tool is connected with the indicator lamp and the buzzer, so that when the detection tool does not receive mainboard information and program information read by the variable frequency air conditioner mainboard, alarm prompt is conducted, and when the mainboard information and the program information transmitted by communication of the variable frequency air conditioner mainboard are judged to be inconsistent with the mainboard information and the program information of the air conditioner mainboard to be detected, which are preset before detection, alarm prompt is conducted. The detection tool is provided with the LED display screen for displaying detection information, and can visually display information of each detection stage, so that when the indication lamp and the buzzer give an alarm, detection faults of the main board of the frequency conversion air conditioner can be directly obtained, and the detection efficiency and the accuracy are improved.
Referring to fig. 2, fig. 2 provides an automatic detection device for a main board of a variable frequency air conditioner, which specifically includes:
the information reading module 10 is used for reading the mainboard information and the program information of the variable frequency air conditioner;
the communication module 20 is used for sending the mainboard information and the program information read by the information reading module 10 to the detection tool;
the detection module 30 is configured to determine whether the detection tool receives the motherboard information and the program information sent by the communication module 20;
the identification module 40 is configured to determine whether the motherboard information and the program information sent by the communication module 20 are consistent with preset information;
and the alarm module 50 is used for giving an alarm prompt in the detection process of the detection tool.
When the automatic detection device for the variable frequency air conditioner mainboard of the embodiment is used for detecting the variable frequency air conditioner, firstly, the information reading module 10 reads mainboard information and program information of the variable frequency air conditioner mainboard which is connected by a lead or wirelessly, then the communication module 20 of the detection device sends the information such as the mainboard code, the main program version, the EEPROM code and the EEPROM version of the variable frequency air conditioner mainboard read by the information reading module to the detection tool in a wireless communication mode, then the detection module 30 of the detection tool preliminarily judges whether the mainboard information and the program information sent by the communication module are received, if the detection module 30 does not detect the information, the alarm module 50 gives an alarm prompt, if the detection module 30 detects the information, the identification module 40 identifies and compares the information with the information of the variable frequency air conditioner mainboard to be detected which is preset or stored by the detection tool, if the comparison fails, the alarm module 50 gives an alarm prompt, if the comparison succeeds, other functional detection is carried out by the detection tool, the detection device of the embodiment solves the problems of main board mixing, burning errors, missing detection and misjudgment and the like in the main board production process while improving the detection efficiency, and is high in accuracy, convenient to operate and fast.
Further, the mainboard information is a mainboard code; the program information comprises a main program code, a main program version, an EEPROM code and an EEPROM version; the mainboard code, the EEPROM code and the EEPROM version are stored in an EEPROM chip; and the main program code and the main program version are stored in a FLASH of the main chip.
According to the automatic detection device for the variable frequency air conditioner mainboard, the mainboard information read by the variable frequency air conditioner mainboard is the code of the variable frequency air conditioner mainboard, namely the product serial number of the mainboard, so that parameter reading of the variable frequency air conditioner applying the mainboard is facilitated when the mainboard is tracked and maintained at a later stage; the program information read by the variable frequency air conditioner mainboard comprises a main program code, a main program version, an EEPROM code and an EEPROM version, and program upgrading and EEPROM chip replacement are conveniently carried out on the mainboard.
When the variable frequency air conditioner mainboard is communicated with the detection tool, mainboard information, EEPROM codes and EEPROM versions are stored in an EEPROM chip so as to ensure the success rate of transmission and reduce other interference, and the space capacity of the EEPROM is large, so that the running speed of the EEPROM is not influenced; and the main program code and the main program version are stored in the FLASH of the main chip, so that the damage to the main program code and the main program version information after power failure is avoided, and the main program code and the main program version information can be quickly stored.
In addition, the main chip and the EEPROM chip of the invention are connected through I2C communication connection, I2C is a special form of synchronous communication, has few interface lines, simple control mode, small device packaging form and high communication speed, and supports any IC production process. The storage space of the EEPROM chip is 1K-2Mbit, the internal memory of the EEPROM chip is 1K-2Mbit, so that the variable frequency air conditioner mainboard can keep a higher operation speed, and the detection efficiency is improved.
When detecting the mainboard of inverter air conditioner, except connecting the power interface of inverter air conditioner mainboard and the zero line and live wire output end or the incoming end that detect the frock and realize power detection, still connect a communication line between the two to realize the data information transmission between inverter air conditioner mainboard and the detection frock, solved mainboard compounding, burning record mistake, the missed measure erroneous judgement scheduling problem that appear in the mainboard production process, improved detection efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. A detection method for a variable frequency air conditioner mainboard is characterized by comprising the following steps:
the method comprises the steps that a variable frequency air conditioner mainboard reads mainboard information and program information and communicates with a detection tool;
sending the mainboard information and the program information to a detection tool in a wireless communication mode;
entering a second detection stage, and comparing and judging the consistency of the mainboard information and the program information with preset information;
before the step of comparing and judging the mainboard information and the program information with the preset information, the method further comprises the following steps of:
entering a first detection stage, judging whether the detection tool receives the mainboard information and the program information,
if yes, the step of entering a second detection stage and comparing and judging the consistency of the mainboard information and the program information with preset information is carried out,
if not, carrying out alarm prompt and finishing detection;
the detection method further comprises the following steps: displaying the detection information of the first detection stage and the second detection stage;
the mainboard information is a mainboard code; the program information comprises a main program code, a main program version, an EEPROM code and an EEPROM version; the mainboard code, the EEPROM code and the EEPROM version are stored in an EEPROM chip; and the main program code and the main program version are stored in a FLASH of the main chip.
2. The method for detecting the main board of the inverter air conditioner according to claim 1, wherein in the step of comparing and judging the consistency between the main board information and the program information with the preset information,
if the comparison and judgment are consistent, other function detection is continued until the detection is finished;
and if the comparison and judgment are inconsistent, giving an alarm prompt and finishing the detection.
3. The method for detecting the main board of the variable frequency air conditioner according to claim 1, wherein the detection tool is connected with an indicator lamp and a buzzer, and the indicator lamp and the buzzer are used for giving an alarm in the detection process.
4. The utility model provides a detection apparatus for inverter air conditioner mainboard, its characterized in that includes:
the information reading module is used for reading the mainboard information and the program information of the variable frequency air conditioner;
the communication module is used for sending the mainboard information and the program information read by the information reading module to the detection tool;
the identification module is used for entering a second detection stage and judging whether the mainboard information and the program information sent by the communication module are consistent with the preset information;
the detection device further comprises:
the detection module is used for entering a first detection stage and judging whether the detection tool receives mainboard information and program information sent by the communication module;
the alarm module is used for carrying out alarm prompt in the detection process of the detection tool;
the display module is used for displaying the detection information of the first detection stage and the second detection stage;
the mainboard information is a mainboard code; the program information comprises a main program code, a main program version, an EEPROM code and an EEPROM version; the mainboard code, the EEPROM code and the EEPROM version are stored in an EEPROM chip; and the main program code and the main program version are stored in a FLASH of the main chip.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108732452B (en) * | 2018-05-31 | 2020-05-15 | 广东美芝制冷设备有限公司 | Air conditioning system and communication detection method and device of current loop communication circuit of air conditioning system |
| CN108870859B (en) * | 2018-07-12 | 2020-09-22 | 四川虹美智能科技有限公司 | Compressor driving parameter configuration method and system |
| CN108870641B (en) * | 2018-07-17 | 2020-11-27 | 奥克斯空调股份有限公司 | Drive fault detection method and device and air conditioner |
| CN109507563B (en) * | 2018-11-12 | 2022-04-01 | 晶晨半导体(上海)股份有限公司 | Mainboard detection method and system |
| CN111399899A (en) * | 2020-04-27 | 2020-07-10 | 深圳市西林电气技术有限公司 | Device convenient for checking programmed version number of master control IC of frequency converter |
| CN112710061B (en) * | 2020-12-08 | 2022-02-15 | 珠海格力电器股份有限公司 | Control method of air conditioner control device capable of automatically identifying identity |
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