CN110687428B - Frequency conversion air conditioner fault detection frock with wireless function - Google Patents
Frequency conversion air conditioner fault detection frock with wireless function Download PDFInfo
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- CN110687428B CN110687428B CN201810739293.3A CN201810739293A CN110687428B CN 110687428 B CN110687428 B CN 110687428B CN 201810739293 A CN201810739293 A CN 201810739293A CN 110687428 B CN110687428 B CN 110687428B
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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
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2822—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
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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
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
Inverter air conditioner ware fault detection frock with wireless function includes: the first fault diagnosis module comprises a first communication state detection unit and a first communication unit, wherein the first communication state detection unit is used for judging the communication state of the master device according to the clock signal and the received command data, and the first communication unit outputs test data to the slave device according to the communication state of the master device; the second fault diagnosis module comprises a second communication state detection unit and a second communication unit, wherein the second communication unit is used for inputting response data; the second communication state detection unit is used for judging the communication state of the slave device according to the clock signal and the response data; and the remote communication module extracts the equipment operation parameters in the command data and/or the response data, receives the communication state of the master equipment and/or the communication state of the slave equipment and outputs the communication state to the external terminal. The invention has the advantages of good universality and high intelligent degree.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a fault detection tool with a wireless function for a variable frequency air conditioner.
Background
The communication fault of the variable frequency air conditioner is a common circuit fault, when a communication circuit part has a fault, various control instructions of the air conditioner cannot be transmitted, and various functions of the air conditioner cannot be normally completed. The direct embodiment of the communication circuit fault comprises the following steps: the whole air conditioner cannot be started, the outdoor unit does not work, and the whole air conditioner is protected when the air conditioner is started. In the prior art, the inverter air conditioner generally has a fault code display, and once a communication circuit has a fault, the air conditioner can display a corresponding fault code. However, in actual maintenance, it is not easy to directly find out a specific failure point by simply relying on a failure code, and when a code indicating a communication failure occurs in the air conditioner is displayed, it can be determined that the communication circuit is abnormal only in a general manner. Maintenance personnel confirm concrete fault point through detection circuitry parameter or change the standby circuit board that has similar communication interface, have not only increased the maintenance cost, and maintenance efficiency is also lower. In addition, by adopting the mode, the overhaul data can only be recorded manually, and the overhaul data is input manually at the later stage, so that the time and the labor are consumed.
Disclosure of Invention
The invention provides a fault detection tool with a wireless function for a variable frequency air conditioner, and aims to solve the problems of high maintenance cost and low efficiency when a communication fault is determined by detecting circuit parameters or replacing a standby circuit board with a similar communication interface in the prior art.
The utility model provides a frequency conversion air conditioner fault detection frock with wireless function, includes:
the first fault diagnosis module comprises a first communication state detection unit and a first communication unit, wherein the first communication state detection unit is used for judging the communication state of the master device according to a clock signal and received command data, and the first communication unit outputs test data to the slave device according to the communication state of the master device;
the second fault diagnosis module comprises a second communication state detection unit and a second communication unit, wherein the second communication unit is used for inputting response data; the second communication state detection unit is used for judging the communication state of the slave device according to the clock signal and the response data; and
and the remote communication module extracts the equipment operation parameters in the command data and/or the response data, receives the communication state of the master equipment and/or the communication state of the slave equipment and outputs the communication state to the external terminal.
Further, the remote communication module includes:
the data acquisition unit is used for extracting equipment operation parameters in the command data and/or the response data and receiving the communication state of the master equipment and/or the communication state of the slave equipment; and
and the NFC communication unit is used for configuring a communication mode and a communication rate of near field communication and outputting the communication mode and the communication rate to the mobile terminal with the NFC equipment, establishing communication with the mobile terminal with the NFC equipment and outputting the equipment operation parameters, the communication state of the master equipment and/or the communication state of the slave equipment to the mobile terminal with the NFC equipment.
Optionally, the remote communication module includes:
the data acquisition unit is used for extracting equipment operation parameters in the command data and/or the response data and receiving the communication state of the master equipment and/or the communication state of the slave equipment; and
and the WIFI communication unit is used for outputting the equipment operation parameters, the communication state of the master equipment and/or the communication state of the slave equipment to the bound mobile terminal.
Further, the method also comprises the following steps:
and the display module receives the master equipment fault signal output by the first communication state detection unit or the slave equipment fault signal output by the second communication state detection unit.
Furthermore, the first fault diagnosis module further comprises a first clock, and a first effective preset value is stored in the first clock;
when the timing duration of the first clock is less than or equal to a first effective preset value, if the first communication state detection unit receives command data, the first communication unit outputs the received command data to slave equipment as test data, and the first communication state detection unit generates a normal signal of the master equipment; if the first communication state detection unit does not receive the command data, the first communication unit generates test data and outputs the test data to the slave equipment, and the first communication state detection unit generates a master equipment fault signal and outputs the master equipment fault signal to the display module.
Furthermore, the second fault diagnosis module further comprises a second clock, and a second effective preset value is stored in the second clock;
when the timing duration of the second clock is less than or equal to a second effective preset value, if the second communication state detection unit receives response data input through the second communication unit, the second communication state detection unit generates a normal signal of the slave device; and if the second communication state detection unit does not receive the response data, the second communication state detection unit generates a slave equipment fault signal and outputs the slave equipment fault signal to the display module.
Further, the first communication unit outputs the test data to the slave device a plurality of times at a fixed cycle, and if the second communication state detection unit receives the response data input through the second communication unit, the first communication unit stops outputting the test data to the slave device.
The system further comprises a third fault diagnosis module, wherein a sensor parameter threshold is stored in the third fault diagnosis module, the third fault diagnosis module extracts a sensor real-time parameter in the command data and/or the response data, compares the sensor real-time parameter with the sensor parameter threshold, and outputs a sensor fault signal if the sensor real-time parameter exceeds the sensor parameter threshold.
When the first communication state detection unit generates a master device fault signal, the driving module outputs a first driving instruction to the slave device, and the slave device receives the first driving instruction and controls the corresponding component to work; when the second communication state detection unit generates a slave device fault signal, the driving module outputs a second driving instruction to the master device, and the master device receives the second driving instruction and controls the corresponding component to work.
Further, the variable frequency air conditioner fault detection tool with the wireless function is connected in series between the air conditioner indoor unit and the outdoor unit.
The fault detection tool with the wireless communication function for the variable frequency air conditioner, disclosed by the invention, can flexibly and accurately detect the fault point of the communication fault of the variable frequency air conditioner, can remotely output fault data, and has the advantages of high intelligent degree and good practicability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a first embodiment of a fault detection tool for a variable frequency air conditioner with a wireless function, which is disclosed by the invention;
FIG. 2 is a schematic block diagram illustrating a second exemplary embodiment of a fault detection tool for a variable frequency air conditioner with a wireless function according to the present disclosure;
fig. 3 is a block diagram illustrating the structure of a fault detection tool for an inverter air conditioner with a wireless function according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic block diagram of a first specific embodiment of a fault detection tool for an inverter air conditioner with a wireless function is shown. As shown in fig. 1, in the present embodiment, the failure detection tool 100 includes a first failure diagnosis module 101 and a second failure diagnosis module 102 that are independently provided. Wherein the first fault diagnosis module 101 includes a first communication state detection unit 100-1 and a first communication unit 101-2. The first communication state detection unit 100-1 is used to determine the communication state of the master device 200 based on the clock signal and the received command data. The first communication unit 101-2 is configured to output test data to the slave device 300 according to the communication state of the master device 200. The second diagnostic module includes a second communication state detection unit 102-1 and a second communication unit 102-2, wherein the second communication unit 102-2 is used for inputting response data, and the second communication state detection unit 102-1 is used for judging the communication state of the slave device 300 according to the clock signal and the response data. In the operation of the air conditioner, one of the indoor unit and the outdoor unit is a master device 200, and the other is a slave device 300. Wherein the master device 200 is defined as the primary origin of the communication signal.
Specifically, a single-channel half-duplex asynchronous serial communication mode is adopted between the first fault diagnosis module 101 and the master device 200. The single-channel half-duplex asynchronous serial communication mode is also adopted between the second fault diagnosis module 102 and the slave device 300. The detection tool is connected with the master device 200 through L, N, a ground wire and a communication wire on one hand, and is connected with the slave device 300 through L, N, a ground wire and a communication wire on the other hand, namely, the detection tool is connected between an indoor unit and an outdoor unit of an air conditioner in series. If the communication of the main device 200 is normal, in the detection period, the main device 200 and the detection tool may transmit data signals through a data group composed of binary code, that is, the main device 200 outputs command data to the detection tool. In this embodiment, the data set is preferably composed of 16 bytes, each byte being composed of a set of 8-bit binary codes. When communication is performed, the master device 200 first transmits a byte representing the start identification code, then sequentially transmits data information of 1 st to 16 th bytes, and finally transmits an end identification code byte, thereby completing command data communication. More specifically, at the detection tool, if the first communication state detection unit 100-1 determines that there is an error in the received data group representing the command data or that the data group representing the command data is not received within the time range of the set clock signal, the first communication state detection unit 100-1 determines that there is a failure in the communication state of the master device 200. If the first communication state detection unit 100-1 determines that the correct data group representing the command data is received within the time range of the set clock signal, it determines that the communication state of the master device 200 is normal.
After obtaining the communication state of the master device 200, the detection tool further determines the communication state of the slave device 300. If the first communication state detection unit 100-1 determines that there is an error in the received data group representing the command data or that there is no reception of the data group representing the command data within the time range in which the clock signal is set, i.e., there is a failure in the communication state of the master device 200, the first communication unit 101-2 generates test data conforming to the command data format and outputs the test data to the slave device 300 in order to verify the communication state of the slave device 300. If the communication of the slave device 300 is normal, the slave device 300 feeds back the response data within a set time range after receiving the test data. The second communication unit 102-2 inputs the fed back response data into the detection tool, and the second communication state detection unit 102-1 determines whether the fed back response data is received in the set range, and checks whether the fed back response data has errors. If the second communication state detection unit 102-1 determines that the fed back response data is not received within the set time range or the fed back response data is verified to be erroneous, the second communication state detection unit 102-1 determines that the slave device 300 has a communication failure. If a correct data group representing the command data is received within the time range of the set clock signal, it is determined that the communication state of the slave device 300 is normal.
In order to improve the detection efficiency, if the first communication state detection unit 100-1 determines that the master device 200 is communicating normally, the first communication unit 101-2 stops generating the test data, and outputs the command data as the test data to the slave device 300. The second communication unit 102-2 inputs the response data fed back from the slave device 300, and the second communication state detection unit 102-1 determines the communication state of the slave device 300 to determine whether the fed back response data is received within a set time range and whether an error exists in the response data.
The command data comprises a plurality of bytes of equipment operation parameters corresponding to machine types, operation modes, target compressor operation frequency, protection states, set temperature, fan rotating speed, environment temperature, coil pipe temperature and the like. The response data comprises a plurality of bytes of equipment operation parameters such as corresponding machine types, actual operation frequency of the compressor, protection states, coil temperature, environment temperature, circuit parameters and the like. Therefore, in the communication process, the detection tool which is used as a transfer hub to receive the command data and the response data can also acquire the data of the bytes. The remote communication module 104 is arranged in the detection tool, and the remote communication module 104 extracts the equipment operation parameters from the command data and/or the response data and sends the equipment operation parameters to the next step. Meanwhile, the remote communication module 104 also receives the communication state of the master device 200 and the communication state of the slave device 300 output by the first communication state detection unit 100-1 and the second communication state detection unit 102-1 and performs the next transmission. The remote communication module 104 transmits the device operation parameters and the communication state to the mobile terminal to form a data record to be used as a basis for next data analysis and data diagnosis.
In the present embodiment, preferably, the remote communication module 104 includes a data acquisition unit 104-1 and an NFC communication unit 104-2. Wherein the data collection unit 104-1 is configured to extract device operating parameters from the command data and/or the response data and receive a communication status of the master device 200 and/or a communication status of the slave device 300. It is also preferred that one NFC communication unit 104-2 is provided. The NFC communication unit 104-2 is configured to configure a communication mode and a communication rate of the near field communication and output the communication mode and the communication rate to the mobile terminal 400 having the NFC device, establish communication with the mobile terminal 400 having the NFC device, and output a device operation parameter, a communication state of the master device 200, and/or a communication state of the slave device 300 to the mobile terminal 400 having the NFC device.
In the actual use process, when the air conditioner is powered on, the detection tool is always in an active state, and the mobile terminal, such as a mobile phone, a tablet personal computer or other handheld mobile terminals, is powered by a battery, so that the electric quantity of the battery is unstable, and even a passive terminal can be adopted. Therefore, in the present embodiment, the NFC communication unit 104-2 in the detection tool is always set as an initiator device for near field communication, and the mobile terminal having an NFC device is always set as a target device for near field communication. If the detection tool is set to be in a passive mode with a fixed transmission rate, the NFC communication unit 104-2 serving as an initiator continuously forms an RF field, and transmits the device operating parameters obtained by the data acquisition unit 104-1 and the communication states of the master device 200 and the slave device 300 to the mobile terminal 400 having an NFC device serving as a target by modulating electromagnetic waves, and the mobile terminal provided with the NFC device performs load modulation to complete remote communication on the part serving as a response.
If the detection tool is set to the active mode with a fixed transmission rate, the NFC communication unit 104-2 as the initiator continuously forms an RF field while transmitting data, and transmits the data to the mobile terminal 400 with an NFC device as a target by modulating an electromagnetic wave. After the transmission of the single data is finished, the RF field of the NFC communication unit 104-2 at the end of the detection tool is terminated. The mobile terminal 400 having the NFC device as a target starts its own RF field if data feedback is required, and transfers the data to the NFC communication unit 104-2 by modulating an electromagnetic wave. After finishing the transmission of the feedback data, the RF field of the mobile terminal 400 having the NFC device is discontinued. The above steps are alternately performed. Therefore, in NFC-based near field communication, the communication mode and the communication speed are determined by the detection tool, on one hand, the detection tool can be matched with more mobile terminals to form various NFC transmission modes, on the other hand, the advantage that the detection tool is in an active state can be effectively utilized, and energy consumption caused by NFC communication is saved.
Before establishing the NFC near field communication, the remote communication module 104 of the detection tool first detects whether an RF field exists around the detection tool, and if so, prohibits establishing the NFC communication to avoid signal mistransmission and ensure data security of the near field communication.
The disclosed inverter air conditioner fault detection frock with wireless communication function of above-mentioned embodiment can detect out inverter air conditioner communication fault's fault point in a flexible way accurately, can be with trouble data remote output simultaneously, has the advantage that intelligent degree is high and the practicality is good.
A display module 103 is also arranged in the detection tool. The display module 103 receives a master 200 failure signal output by the first communication state detection unit 100-1 or a slave 300 failure signal output by the second communication state detection unit 102-1.
To enable independent detection, a first clock is provided in the first fault diagnosis module 101. The first clock stores a first effective preset value. In the detection period, if the timing duration of the first clock is less than or equal to a first valid preset value and the first communication state detection unit 100-1 determines that command data meeting the format requirement is received, the first communication unit 101-2 takes the received command data as test data and outputs the test data to the slave device 300, and the first communication state detection unit 100-1 generates a master device fault signal. The main equipment fault signal can be displayed through a nixie tube, and can also be displayed through a display screen and other similar interactive interfaces arranged on the detection tool. Similarly, a second clock is further provided in the second fault diagnosis module 102, and a second valid preset value is stored in the second clock. And when the timing duration of the second clock is less than or equal to a second effective preset value. If the second communication state detection unit 102-1 determines that the response data input through the second communication unit 102-2 is received and there is no error in the response data, the second communication state detection unit 102-1 generates a normal signal from the device 300. If the second communication state detection unit 102-1 determines that the response data is not received or the response data has an error, the second communication state detection unit 102-1 generates a slave device 300 fault signal and outputs the fault signal to the interactive interface for display. Through the first clock and the second clock which are independently arranged, the first fault diagnosis module 101 and the second fault diagnosis module 102 can independently detect the communication fault of the master device 200 and the slave device 300 and rapidly output the detection result to the outside, on one hand, in the same detection period, a maintenance worker can perform multi-round detection and verification, and the detection efficiency and the detection precision are improved; on the other hand, the problem that the detection tool cannot work due to the fault of the clock circuit can be avoided.
In the communication process, transient communication faults can be caused sometimes due to electronic noise, and the communication faults can be repaired automatically after the electronic noise source disappears, and no human intervention is needed. If the detection tool reports the communication fault, a certain degree of misjudgment can be caused, and the reliability of the detection tool is reduced. To avoid this, the first communication unit 101-2 preferably outputs the test data to the slave device 300 a plurality of times at a fixed cycle, and once the second communication state detection unit 102-1 receives the response data input through the second communication unit 102-2, the first communication unit 101-2 stops outputting the test data to the slave device 300. By adopting the mode, on one hand, the communication fault can be accurately judged through multiple times of detection, the misjudgment is avoided, on the other hand, the detection period can be shortened, and the detection efficiency is improved.
Preferably, in the inverter air conditioner fault detection tool disclosed in this embodiment, a third fault diagnosis module is further included. Sensor parameter thresholds are stored in the third fault diagnosis module. During communication, the third fault diagnosis module extracts sensor real-time parameters in the command/response data and compares the sensor real-time parameters with sensor parameter thresholds. If the real-time sensor parameter in the data set exceeds the sensor parameter threshold, the third fault diagnosis module outputs a sensor fault signal to the interaction interface and through the remote communication module 104. The sensor parameter thresholds in the third fault diagnosis module preferably include an indoor coil temperature threshold, an outdoor coil temperature threshold, and an outdoor ambient temperature threshold. Due to the limitation of the installation position, the probability of the three temperature sensors failing is relatively high, and the overhauling difficulty is high. On the premise that the data processing capacity of the detection tool is improved, parameter thresholds of more groups of sensors can be set, and the hardware working state of the air conditioner is monitored.
A driving module is further arranged in the detection tool. When the first communication state detection unit 100-1 generates a failure signal of the master device 200, the driving module outputs a first driving instruction to the slave device 300, and the slave device 300 receives the first driving instruction and controls a component corresponding to the first driving instruction to operate. For example, the driving module outputs a first driving command to the fan in the indoor unit or the outdoor unit. The fan acts according to the designated wind speed after receiving the first driving instruction, namely, the working state of a certain component in the air conditioner can be detected through the detection tool in the state of communication fault, so that the function of the detection tool is expanded. Similarly, when the second communication state detection unit 102-1 generates the slave device failure signal, the driving module outputs a second driving instruction to the master device 200, the master device 200 receives the second instruction and controls the corresponding component to operate, and the second driving instruction may also control one of the components such as the fan and the display device to detect the operating state thereof. When a hardware fault exists in a certain component, the detection tool can also output the hardware fault through the remote communication module 104. In this embodiment, when there is a hardware fault in a certain component, a test program for the certain component may also be input through NFC near field communication to perform preliminary detection. Through the mode, on one hand, the detection tool does not need too high data processing capacity, and on the other hand, the fault detection range of the detection tool can be expanded.
Fig. 2 is a schematic block diagram of a structure of a fault detection tool for an inverter air conditioner with a wireless function according to a second embodiment of the present invention. Similar to the first embodiment, in the present embodiment, the detection tool 100 also includes a first failure diagnosis module 101, a second failure diagnosis module 102, and a remote communication module 105. The first fault diagnosis module 101 and the second fault diagnosis module 102 have the same composition and working manner as those of the first embodiment, and are not described herein again. In this embodiment, the remote communication module 105 includes a data acquisition unit 105-1 and a WIFI communication unit 105-2. Wherein the data acquisition unit 105-1 is configured to extract device operation parameters from the command data and/or the response data and receive a communication status of the master device and/or a communication status of the slave device. The WIFI communication unit 105-2 is configured to output the device operation parameters, the communication status of the master device, and/or the slave device communication status to the bound mobile terminal 500. The WIFI communication unit 105-2 is preferably independently powered by the outdoor unit to ensure its signal stability. Compared with the first embodiment, the remote communication mode adopting the WIFI communication unit has the advantages of higher transmission rate and various networking modes.
Fig. 3 is a block diagram schematically illustrating a structure of a fault detection tool for an inverter air conditioner with a wireless function according to a third embodiment of the present invention. In the present embodiment, the detection tool 100 includes a first fault diagnosis module 101, a second fault diagnosis module 102, and a first remote communication module 104 and a second remote communication module 105 in parallel. The composition and operation of the first fault diagnosis module 104 and the second fault diagnosis module 105 are the same as those of the first embodiment, and are not described herein again. In this embodiment, the first remote communication module 104 includes a first data acquisition unit 104-1 and an NFC communication unit 104-2, and the second remote communication module 105 includes a second data acquisition unit 105-1 and a WIFI communication unit 105-2. Wherein the first data acquisition unit 104-1 and the second data acquisition unit 105-1 are used for independently extracting the device operation parameters in the command data and/or the response data and receiving the communication state of the master device and/or the communication state of the slave device. The maintenance personnel can remotely output the device operation parameters, the communication state of the master device and/or the communication state of the slave device to the mobile terminal 400 with the NFC communication device or the mobile terminal 600 bound with the WIFI communication unit through the NFC communication unit 104-2 or the WIFI communication unit 105-2. Preferably, the wireless communication function of the detection tool is in an activated state only on the premise of active operation of a maintenance worker. If the wireless communication function of the detection tool is in an activated state and the NFC communication unit 104-2 detects an RF field generated by other equipment, the detection tool automatically outputs the equipment operation parameters, the communication state of the master equipment and/or the operation state of the slave equipment to the mobile terminal through the WIFI communication unit 105-2. Activation of the wireless communication function is preferably achieved by a switch provided on the detection tool.
In the second and third embodiments, the manner of acquiring the clock signal, the manner of operating the third failure diagnosis module and the driving module are described in detail with reference to the detailed description of the first embodiment, and will not be described in detail here.
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 (7)
1. The utility model provides a frequency conversion air conditioner fault detection frock with wireless function which characterized in that includes:
the first fault diagnosis module comprises a first communication state detection unit and a first communication unit, wherein the first communication state detection unit is used for judging the communication state of the master device according to a clock signal and received command data, and the first communication unit outputs test data to the slave device according to the communication state of the master device; the first fault diagnosis module further comprises a first clock, and a first effective preset value is stored in the first clock; when the timing duration of the first clock is less than or equal to a first effective preset value, if the first communication state detection unit receives command data, the first communication unit outputs the received command data as test data to the slave device for multiple times according to a fixed period, and the first communication state detection unit generates a normal signal of the master device; if the first communication state detection unit does not receive the command data, the first communication state detection unit generates a master equipment fault signal, and the first communication unit generates test data and outputs the test data to the slave equipment for multiple times according to a fixed period;
the second fault diagnosis module comprises a second communication state detection unit and a second communication unit, wherein the second communication unit is used for inputting response data; the second communication state detection unit is used for judging the communication state of the slave device according to the clock signal and the response data; the second fault diagnosis module further comprises a second clock, and a second effective preset value is stored in the second clock; when the timing duration of the second clock is less than or equal to a second effective preset value, if the second communication state detection unit receives response data input through the second communication unit, the second communication state detection unit generates a normal signal of the slave device; if the second communication state detection unit does not receive the response data, the second communication state detection unit generates a slave device fault signal; and
and the remote communication module extracts the equipment operation parameters in the command data and/or the response data, receives the communication state of the master equipment and/or the communication state of the slave equipment and outputs the communication state to the external terminal.
2. The variable frequency air conditioner fault detection tool with the wireless function of claim 1, wherein the remote communication module comprises:
the data acquisition unit is used for extracting equipment operation parameters in the command data and/or the response data and receiving the communication state of the master equipment and/or the communication state of the slave equipment; and
and the NFC communication unit is used for configuring a communication mode and a communication rate of near field communication and outputting the communication mode and the communication rate to the mobile terminal with the NFC equipment, establishing communication with the mobile terminal with the NFC equipment and outputting the equipment operation parameters, the communication state of the master equipment and/or the communication state of the slave equipment to the mobile terminal with the NFC equipment.
3. The variable frequency air conditioner fault detection tool with the wireless function of claim 1, wherein the remote communication module comprises:
the data acquisition unit is used for extracting equipment operation parameters in the command data and/or the response data and receiving the communication state of the master equipment and/or the communication state of the slave equipment; and
and the WIFI communication unit is used for outputting the equipment operation parameters, the communication state of the master equipment and/or the communication state of the slave equipment to the bound mobile terminal.
4. The variable frequency air conditioner fault detection tool with the wireless function according to any one of claims 2 or 3, further comprising:
the display module receives a master equipment fault signal output by the first communication state detection unit or a slave equipment fault signal output by the second communication state detection unit; if the first communication state detection unit does not receive command data, the first communication state detection unit generates a master equipment fault signal and outputs the master equipment fault signal to the display module, and if the second communication state detection unit does not receive response data, the second communication state detection unit generates a slave equipment fault signal and outputs the slave equipment fault signal to the display module.
5. The variable frequency air conditioner fault detection tool with the wireless function according to claim 4,
the system also comprises a third fault diagnosis module, wherein a sensor parameter threshold value is stored in the third fault diagnosis module, the third fault diagnosis module extracts a sensor real-time parameter in the command data and/or the response data, compares the sensor real-time parameter with the sensor parameter threshold value, and outputs a sensor fault signal if the sensor real-time parameter exceeds the sensor parameter threshold value.
6. The variable frequency air conditioner fault detection tool with the wireless function according to claim 5,
the device further comprises a driving module, when the first communication state detection unit generates a master equipment fault signal, the driving module outputs a first driving instruction to the slave equipment, and the slave equipment receives the first driving instruction and controls the corresponding component to work; when the second communication state detection unit generates a slave device fault signal, the driving module outputs a second driving instruction to the master device, and the master device receives the second driving instruction and controls the corresponding component to work.
7. The variable frequency air conditioner fault detection tool with the wireless function according to claim 6,
the frequency conversion air conditioner fault detection tool with the wireless function is connected in series between an air conditioner indoor unit and an outdoor unit.
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