CN109151763A - Wireless data transmission method, radio transmitting device and air-conditioning system - Google Patents
Wireless data transmission method, radio transmitting device and air-conditioning system Download PDFInfo
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- CN109151763A CN109151763A CN201811230529.7A CN201811230529A CN109151763A CN 109151763 A CN109151763 A CN 109151763A CN 201811230529 A CN201811230529 A CN 201811230529A CN 109151763 A CN109151763 A CN 109151763A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
Abstract
This application involves a kind of wireless data transmission method, radio transmitting device and air-conditioning systems.Wireless data transmission method includes: the operational data for obtaining the device of communication connection；The identification code of read work data；Data to be reported are chosen from the operational data for read identification code；Data to be reported are wirelessly transmitted to remote terminal.The flow that wireless transmission needs to consume can be reduced, to save monitoring cost by reducing the data volume of transmission using this method.
Description
Technical field
This application involves radio transmission technical fields, fill more particularly to a kind of wireless data transmission method, wireless transmission
It sets and air-conditioning system.
Background technique
Radio transmitting device is usually used in acquiring the data of equipment, by wireless communication transmitted data on network to remote terminal,
Aided remote monitoring.For example, to guarantee that various regions air-conditioning equipment reliability service, air-conditioning equipment generally understand standard configuration radio transmitting device
(DTU), radio transmitting device connects the data in air-conditioning equipment on the communication bus of controller, for real-time acquisition controller simultaneously
It is uploaded to remote terminal.
In traditional technology, for the terminal energy accurate measurements equipment fault for ensuring remotely to monitor, radio transmitting device needs reality
When reported data, data volume is more, can consume very big communication flows, leads to monitoring cost height.
Summary of the invention
Based on this, it is necessary to for the data transmission technical problem that consumed flow is big, monitoring cost is high in traditional technology, mention
Wireless data transmission method, the wireless transmission dress that the consumption of radio transmitting device flow can be reduced for one kind, reduce monitoring cost
It sets and air-conditioning system.
A kind of wireless data transmission method, which comprises
Obtain the operational data of the device of communication connection；
Read the identification code of the operational data；
Data to be reported are chosen from the operational data for read identification code；
The data to be reported are wirelessly transmitted to remote terminal.
A kind of radio transmitting device, including memory and processor, the memory are stored with computer program, the place
Reason device performs the steps of when executing the computer program
Obtain the operational data of the device of communication connection；
Read the identification code of the operational data；
Data to be reported are chosen from the operational data for read identification code；
The data to be reported are wirelessly transmitted to remote terminal.
A kind of air-conditioning system, including air conditioner main body, controller and above-mentioned radio transmitting device, described in controller connection
Air conditioner main body and the radio transmitting device；
The working condition that the controller detects the air conditioner main body obtains operational data and is delivered to the wireless transmission
Device.
Above-mentioned wireless data transmission method, radio transmitting device and air-conditioning system obtain the work of the device of communication connection
Make data, the identification code of read work data chooses data to be reported from the operational data for read identification code, then will be to upper
Count off evidence is wirelessly transmitted to remote terminal.The operational data of remote terminal acquisition device, typically to monitoring；It is needed by choosing
The data to be reported wanted are wirelessly transmitted to remote terminal, do not need whole operational datas of real-time Transmission acquisition, reduce transmission
Data volume.And be transmitted to remote terminal data volume number, determine transmission data required for consume uninterrupted, because
This can reduce the flow that wireless transmission needs to consume, to save monitoring cost by reducing the data volume of transmission.
Detailed description of the invention
Fig. 1 is the applied environment figure of wireless data transmission method in one embodiment；
Fig. 2 is the flow diagram of wireless data transmission method in one embodiment；
Fig. 3 is the flow diagram of wireless data transmission method in another embodiment；
Fig. 4 is the internal structure chart of radio transmitting device in one embodiment；
Fig. 5 is the structural schematic diagram of air-conditioning system in one embodiment；
Fig. 6 is using wireless data transmission method and the centrifuge effect contrast figure for not applying wireless data transmission method；
Fig. 7 is using wireless data transmission method and the screw machine effect contrast figure for not applying wireless data transmission method.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Wireless data transmission method provided by the present application can be applied in application environment as shown in Figure 1.Wherein, nothing
Line transmitting device 102 is communicated by communication bus and the device 104 at scene, and network and remote terminal 106 by wireless communication
It is communicated.The operational data of 102 acquisition device 104 of radio transmitting device, the identification code of read work data are known from having read
Data to be reported are chosen in the operational data of other code, data to be reported are wirelessly transmitted to remote terminal 106.Wherein, device 104
It can be the controller of equipment；Remote terminal 106 can include but is not limited to be server, personal computer, laptop,
Tablet computer etc..
In one embodiment, as shown in Fig. 2, providing a kind of wireless data transmission method, it is applied to Fig. 1 in this way
In radio transmitting device 102 for be illustrated, comprising the following steps:
S110: the operational data of the device of communication connection is obtained.
The device of communication connection is to communicate, needed through radio transmitting device and long-range end with radio transmitting device foundation
Hold the device of communication.Operational data is to have obtained in the device operation of communication connection, needed to send out by radio transmitting device
It send to the data of remote terminal.For example, controller detects the air-conditioning of air-conditioning equipment so that device is the controller of air-conditioning equipment as an example
The working condition of ontology obtains operational data.
Specifically, the operational data that radio transmitting device can be sent by connection receiving device；Radio transmitting device
It is also possible on the communication bus for being connected to multiple devices, the sampler operational data used by communication bus interaction.
S130: the identification code of read work data.
Identification code is the information for identification work data.For example, identification code may include the function of identification work data
Function code, can also include identification work data attribute check code.
S150: data to be reported are chosen from the operational data for read identification code.
Data to be reported are chosen from the operational data for read identification code, obtaining data to be reported is the work integrally obtained
Make the partial data in data.Specifically, radio transmitting device is selected from the operational data for read identification code according to identification code
Take data to be reported.
S170: data to be reported are wirelessly transmitted to remote terminal.
Specifically, data to be reported are wirelessly transmitted to remote terminal to radio transmitting device by network by wireless communication.
In above-mentioned wireless data transmission method, the operational data of the device of communication connection is obtained, read work data
Identification code chooses data to be reported from the operational data for read identification code, then data to be reported is wirelessly transmitted to remotely
Terminal.The operational data of remote terminal acquisition device, typically to monitoring；It is wirelessly passed by choosing the data to be reported needed
Remote terminal is transported to, whole operational datas of real-time Transmission acquisition is not needed, reduces the data volume of transmission.And it is transmitted to long-range
The data volume of terminal number, determine transmission data required for consume uninterrupted, therefore, pass through reduce transmission data
Amount can reduce the flow that wireless transmission needs to consume, to save monitoring cost.
In one embodiment, step S130 includes: according to preset duration and to receive event when receiving fault-signal
Time range is determined at the time of hindering signal；Search the operational data obtained in time range；Read the operational data found
Identification code.
Fault-signal is intended to indicate that the signal that device or device object detected break down.Fault-signal can be
It is sent by the device of communication connection, accordingly, the device of communication connection has the function of fault detection.Certainly, failure is believed
Number it is also possible to the other equipment except the device by communication connection to send.
Preset duration can be specifically arranged according to actual needs.The time span of determining time range can be equal to default
Duration can also be greater than preset duration.Specifically, step S110 and step S130 can be parallel, for example, radio transmitting device can
To be real-time or periodically acquire the operational data of the device of communication connection by preset interval, while detecting whether to receive event
Hinder signal, if receiving, it is determined that time range.Step S110 and step S130 are also possible to execute according to sequencing.
Specifically, if time range is the period before current time, it can directly search and be obtained in time range
Operational data.If time range includes the period after current time, step can be continued after determining time range
S110, meets or exceeds the finish time of time range at the time of practical, then searches the work number obtained in time range
According to.
Remote terminal is by radio transmitting device acquisition data, failure and analysis typically to monitoring devices, and device
What part was all up in most cases, need radio transmitting device to report mass data if real time monitoring, wave
Take flow.By determining time range when receiving fault-signal, radio transmitting device can be actively based on the identified time
Range-based searching operational data carries out preliminary screening, and neighbouring operational data, is looked at the time of only read failure occurs to read
The identification code for the operational data looked for.In this way, the transmission quantity to unwanted data can be reduced, wireless transmission can be reduced and need to disappear
The flow of consumption.
In one embodiment, fault-signal is sent by the device of communication connection；Fault-signal is the failure of one token
Flag bit.The fault flag of one token indicates faulty.
Accordingly, device can indicate fault-free using the fault flag that " 0 " marks.By using numeric indicia event
Barrier flag bit is simple and convenient as fault-signal.As long as this flag bit always exists for example, device can work normally；Control
Device processed detects temperature sensor fault, current sensor faults, pressure sensor failure, if whenever one among these
Failure occurs, and fault flag is " 1 ", and fault flag " 1 " is sent to radio transmitting device, then radio transmitting device receives
To fault-signal.Certainly, detect that multiple failures occur together, fault flag is also for " 1 ".
In one embodiment, preset duration include it is preset be pushed forward duration and it is preset after delay length.In step S130,
Time range is determined according to preset duration and at the time of receiving fault-signal, comprising: is at the time of to receive fault-signal
Reference instant, at the time of determining that the space before at moment on the basis of the initial time of time range is pushed forward duration, the knot of time range
At the time of being delayed long after being spaced after the moment on the basis of the beam moment.
Wherein, being pushed forward duration and rear delay length can be specifically arranged according to actual needs.It is pushed forward duration and rear delay length can
It, can also be unequal with equal.At the time of the space before of reference instant is pushed forward duration, refer to prior to reference instant and and benchmark
At the time of moment difference is pushed forward duration.At the time of being delayed long after being spaced after reference instant, refers to and be later than reference instant and and base
At the time of being delayed long after punctual quarter difference.That is, the time range determined, is before reference instant, before differing with reference instant
At the time of pushing away duration to after reference instant, at the time of being delayed long after differing with reference instant between period.
Before and after failure appearance, the operational data of device has difference embodiment.At the time of by with before reference instant
It is finish time at the time of for after initial time, reference instant to determine time range, so that searched according to time range
Operational data is the operational data obtained in a period of time of front and back at the time of receiving fault-signal, it is ensured that reads the work of identification code
It may include the data that front and back occurs for failure as data, so that failure feelings can accurately be embodied by being transmitted to the operational data of remote terminal
Condition, monitoring effect are good.
Specifically, in the present embodiment, step S110 and step S130 can be parallel, and radio transmitting device executes step S110
With step S130, obtains operational data and detect whether to receive fault-signal；When receiving fault-signal, then execute step
S110, meets or exceeds the finish time of time range at the time of practical, then searches the operational data in time range.
It is appreciated that in other embodiments, at the time of being also possible to according to preset duration and receive fault-signal, by
Time range is determined according to other modes.For example, when being starting at the time of radio transmitting device can be to receive fault-signal
Quarter, the period that time span is preset duration are knot at the time of being also possible to receive fault-signal as time range
Beam moment, the period that time span is preset duration are as time range.
In one embodiment, the length that is delayed is pushed forward after duration is less than.Data after generic failure can more embody fault condition；
It is greater than by delay length after being arranged and is pushed forward duration, so that according in the operational data of time range lookup, the more acquisition event of energy
Operational data after barrier accurately analyzes the situation after failure convenient for remote terminal.
Specifically, it a length of 5 minutes when being pushed forward, is delayed afterwards a length of 30 minutes.By searching for 5 minutes before reference instant to base
It is punctual carve after operational data in 30 minutes time ranges, the case where failure can be accurately reflected.It is appreciated that at other
In embodiment, being pushed forward duration and rear delay length also be can be set according to actual needs as numerical value.
In one embodiment, identification code includes function code to be reported and without reporting functions code.That is, an operational data
With a function code to be reported and without one of reporting functions code.Wherein, function code to be reported is corresponding for identifying
Operational data needs to report to remote terminal；It does not need to report to far for identifying corresponding operational data without reporting functions code
Journey terminal.
Accordingly, step S150 includes: and chooses from the operational data for read identification code comprising function code to be reported
Operational data obtains data to be reported.
The operational data for having read identification code refers to that included identification code has been identified the operational data read.Specifically
Ground, the operational data for having read identification code can be equal to the operational data obtained in time range.Choosing includes function to be reported
Can code operational data, the data to be reported obtained from are the operational data with function code to be reported.For example, with 0x90 table
Show that function code to be reported, 0x98 are indicated without for reporting functions code: operational data is transmitted as a data frame, data
Frame includes function code, data bulk, check code etc., for needing to be transmitted to the operational data of remote terminal, when generating data frame
It is 0x90 that function code, which can be set, for the operational data for not needing to be transmitted to remote terminal, be can be set when generating data frame
Function code is 0x98.It is 0x90's that radio transmitting device, which is searched from the operational data for having read identification code, choosing function code,
Operational data obtains data to be reported.
In traditional technology, radio transmitting device real-time transmission data to remote terminal, the number that radio transmitting device is transmitted
According to not all data be all remote terminal needs use, and transmit remote terminal without using data, can also make
At the consuming of flow.Using function code markers work data, operational data is classified, data is chosen in radio transmitting device and carries out
During transmission reports, by reading identification code, selection has function to be reported from the operational data obtained in time range
The operational data of energy code so that only transmitting useful data, can also reduce the data volume of transmission, into one as data to be reported
Step saves certain flow cost.
In one embodiment, identification code includes check code, and data to be reported have multiple.One operational data has one
Check code.Wherein, check code is the information code for information such as flag data type, data sources, by analysis two to upper
Whether the check code of count off evidence is identical, it can be determined that whether two data to be reported are repeated data.For example, data to be reported are
It is transmitted as a data frame, data frame has frame starting, End of Frame and check code, can be found by frame starting, End of Frame
One complete data frame, by check code can primary data whether repeat.Specifically, check code can be character string, character string
In include the data bit for flag data type and data bit for flag data source.It is identical for data type, by
Two data that different components generate are non-duplicate data；For example, the expansion valve opening of the expansion valve opening of device 1 and device 2
It is non-duplicate data.It is generated by the same device but two data that data type is different, is similarly non-duplicate data.
Accordingly, step S170 includes: that data to be reported identical to check code are compressed, and obtains compressed data；It will
Compressed data and the different data to be reported of check code are wirelessly transmitted to remote terminal after being packaged.
Decompression is after the data that remote terminal reception is sent to radio transmitting device with restoring data.Specifically, if it is multiple to
Reported data is the identical data of check code, that is, is repeated data, then data to be reported identical to check code are pressed
After contracting, remote terminal is wirelessly transmitted to after obtained compressed data is packaged.Specifically, radio transmitting device caching is to be reported
Data execute data to be reported identical to check code and compress, obtain when the data to be reported of caching reach preset capacity
The step of to compressed data, compression packing is carried out with the data to caching.For example, radio transmitting device is when caching reaches 4KB,
By after the identical data compression to be reported of check code in the data to be reported of caching with the different number to be reported of other check codes
According to transmitting together.
In the operational data that radio transmitting device obtains, inevitable that repeated data, and the transmission of repeated data
It will increase the data volume of transmission.Indicate whether data repeat by using check code, radio transmitting device to whole by having obtained
Before the data to be reported taken are packaged, the data to be reported of identical check code are compressed, it is possible to reduce the data of transmission are held
Amount further saves monitoring cost to reduce the flow of transmission consumption.
It is illustrated below with a specific embodiment.With reference to Fig. 3, radio transmitting device execute the step of include: obtain
The operational data of the device of communication connection；When receiving fault-signal, according to preset duration and receive fault-signal when
It carves and determines time range；The operational data obtained in time range is searched, the identification code of the operational data found is read；From
It has read and has chosen the operational data comprising function code to be reported in the operational data of identification code, obtained data to be reported；To verification
The identical data to be reported of code are compressed, and compressed data is obtained；By compressed data and the different data to be reported of check code
Remote terminal is wirelessly transmitted to after packing.
It should be understood that although each step in the flow chart of Fig. 2-3 is successively shown according to the instruction of arrow,
These steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly stating otherwise herein, these steps
Execution there is no stringent sequences to limit, these steps can execute in other order.Moreover, at least one in Fig. 2-3
Part steps may include that perhaps these sub-steps of multiple stages or stage are not necessarily in synchronization to multiple sub-steps
Completion is executed, but can be executed at different times, the execution sequence in these sub-steps or stage is also not necessarily successively
It carries out, but can be at least part of the sub-step or stage of other steps or other steps in turn or alternately
It executes.
In one embodiment, a kind of radio transmitting device is provided, the internal structure chart of the radio transmitting device can be with
As shown in Figure 4.The radio transmitting device includes processor, memory and the network interface connected by system bus.Wherein, should
The processor of radio transmitting device is for providing calculating and control ability.The memory of the radio transmitting device includes non-volatile
Storage medium, built-in storage.The non-volatile memory medium is stored with operating system and computer program.The built-in storage is non-
The operation of operating system and computer program in volatile storage medium provides environment.The network interface of the radio transmitting device
For being communicated with external terminal by network connection.To realize that a kind of data are wireless when the computer program is executed by processor
Transmission method.
It will be understood by those skilled in the art that structure shown in Fig. 4, only part relevant to application scheme is tied
The block diagram of structure does not constitute the restriction for the radio transmitting device being applied thereon to application scheme, specific to be wirelessly transferred
Device may include perhaps combining certain components or with different component cloth than more or fewer components as shown in the figure
It sets.
In one embodiment, a kind of radio transmitting device, including memory and processor are provided, is stored in memory
There is computer program, when which executes computer program the step of realization aforementioned data radio transmitting method.
Specifically, radio transmitting device further includes wireless communication module, and processor executes computer program and realizes aforementioned number
When according to radio transmitting method, the step of data to be reported are wirelessly transmitted to remote terminal is specifically to be sent to data to be reported
Wireless communication module, by wireless communication module transfer to remote terminal.
Above-mentioned radio transmitting device similarly, can reduce nothing due to the step of realizing aforementioned data radio transmitting method
The flow that line transmission needs to consume, to save monitoring cost.
In one embodiment, a kind of air-conditioning system, including air conditioner main body, controller and wireless transmission above-mentioned are provided
Device.Controller connects air conditioner main body and radio transmitting device.The working condition of controller detection air conditioner main body obtains work number
According to and be delivered to radio transmitting device.
Wherein, air conditioner main body is to realize the basic composition device of the had function of air-conditioning, such as refrigeration unit.Wireless transmission
Device can be the operational data for actively obtaining controller, be also possible to passively receive the operational data that controller is sent.Specifically
Ground, the method that radio transmitting device executes can be found in aforementioned data radio transmitting method, and this will not be repeated here.
Above-mentioned air-conditioning system similarly can reduce wireless transmission and need to consume due to using aforementioned radio transmitting device
Flow, to save monitoring cost.
In one embodiment, controller is when detecting air conditioner main body failure, sends fault-signal to being wirelessly transferred dress
It sets.Radio transmitting device determines the time when receiving fault-signal, according to preset duration and at the time of receiving fault-signal
Range searches the operational data obtained in time range, reads the identification code of the operational data found.
In one embodiment, controller includes host controller and controls from machine controller, host controller and slave
Modbus agreement is used between device, passes through the respective operational data of communication bus interaction.Operational data includes normal parameter evidence and steady
Fixed number evidence, host controller are less than the interrogation frequency to normal parameter evidence to the interrogation frequency for stablizing data.
Host controller and data interaction is carried out by communication bus between machine controller, radio transmitting device passes through logical
It interrogates bus and obtains host controller and the operational data from interaction between machine controller.Wherein, normal parameter evidence is change frequency height
Data.Stablizing data is data more stable, that change frequency is low；For example, expansion valve opening, water flow switch state, operation
The data such as time are more stable, can be used as stable data.
Host controller and from the data interaction between machine controller, will all walk communications protocol；Modbus agreement is
A kind of catechetical agreement, working method are as follows: host controller inquiry issues a frame data, replies from machine controller, replys one
Frame data.The operational data of this question-response is packaged by radio transmitting device, is wirelessly transmitted to remote terminal.Host controller is ask
The frequency asked is higher, gap periods are shorter, and just high from the frequency of machine controller response, data interaction frequency is big, then is wirelessly transferred
The data volume that data need to be transmitted to Terminal Server Client is just more.And the operational data low for change frequency, if frequently interaction,
Also the data transfer throughput of radio transmitting device can be increased.By the way that different inquiry frequencies is arranged with data are stablized to normal parameter evidence
Rate is reduced to the interrogation frequency for stablizing data, to reduce the transmission to data are stablized, can also reduce the data volume of transmission, can
Further save transmission flow.
In another embodiment, the quantity of controller has multiple, and CAN protocol is used between each controller, passes through communication
The respective operational data of bus interaction.For example, shown in Fig. 5.
CAN protocol is the communications protocol of no principal and subordinate a kind of, is not required to inquire, can actively issue oneself state.It is assisted using CAN
View is communicated, and can be reduced data interaction frequency, to reduce the data volume that radio transmitting device is obtained and transmitted, and then be subtracted
Few data transfer throughput.
Specifically, operational data can repeatedly be sent according to predetermined period, preset times using the controller of CAN protocol,
To ensure that other controllers can receive operational data, avoid because there is the case where interference or communication conflicting hours are according to interaction failure.
Preferably to carry out effect explanation, it is illustrated below with an application examples.Radio transmitting device connection is respectively adopted
Screw machine, centrifuge controller communication bus on, be respectively used to the work number for detecting the controller of screw machine, centrifuge
According to being wirelessly transmitted to remote terminal.Radio transmitting device uses aforementioned data radio transmitting method and does not use aforementioned data wireless
The Contrast on effect of transmission method is shown in Fig. 6 and Fig. 7, wherein scheme before change be radio transmitting device do not use aforementioned data without
The scheme of line transmission method, the scheme after change are the scheme that radio transmitting device uses aforementioned data radio transmitting method.It can
See, using aforementioned data radio transmitting method, can significantly reduce flow consumption, save the cost.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of wireless data transmission method, which is characterized in that the described method includes:
Obtain the operational data of the device of communication connection；
Read the identification code of the operational data；
Data to be reported are chosen from the operational data for read identification code；
The data to be reported are wirelessly transmitted to remote terminal.
2. the method according to claim 1, wherein the identification code for reading the operational data, comprising:
When receiving fault-signal, time range is determined according to preset duration and at the time of receiving the fault-signal；
Search the operational data obtained in the time range；
Read the identification code of the operational data found.
3. according to the method described in claim 2, it is characterized in that, the preset duration includes the preset duration and default of being pushed forward
Rear delay it is long；It is described to determine time range according to preset duration and at the time of receiving the fault-signal, comprising:
Moment on the basis of at the time of to receive the fault-signal determines that the initial time of the time range is the benchmark
At the time of being pushed forward duration described in the space before at moment, the finish time of the time range is spaced institute for the reference instant later
At the time of being delayed long after stating.
4. according to the method described in claim 3, it is characterized in that, the duration that is pushed forward is less than the rear delay length.
5. the method according to claim 1, wherein the identification code includes function code to be reported and without reporting
Function code；It is described that data to be reported are chosen from the operational data for read identification code, comprising:
The operational data comprising the function code to be reported is chosen from the operational data for read identification code, is obtained described to upper
Count off evidence.
6. method described in -5 any one according to claim 1, which is characterized in that the identification code includes check code, described
Data to be reported have multiple；It is described that the data to be reported are wirelessly transmitted to remote terminal, comprising:
Data to be reported identical to check code are compressed, and compressed data is obtained；
The remote terminal is wirelessly transmitted to after the different data to be reported of the compressed data and check code are packaged.
7. a kind of radio transmitting device, including memory and processor, the memory are stored with computer program, feature exists
In the step of processor realizes any one of claims 1 to 6 the method when executing the computer program.
8. a kind of air-conditioning system, which is characterized in that filled including air conditioner main body, controller and wireless transmission as claimed in claim 7
It sets, the controller connects the air conditioner main body and the radio transmitting device；
The working condition that the controller detects the air conditioner main body obtains operational data and is delivered to the radio transmitting device.
9. air-conditioning system according to claim 8, which is characterized in that the controller includes host controller and slave control
Device processed, the host controller and it is described between machine controller use modbus agreement, by communication bus interact it is respective
Operational data；
The operational data includes normal parameter evidence and stablizes data, interrogation frequency of the host controller to the stable data
Less than the interrogation frequency to the normal parameter evidence.
10. air-conditioning system according to claim 8, which is characterized in that the quantity of the controller has multiple, each controller
Between using CAN protocol, by communication bus interact respective operational data.
Priority Applications (1)
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| CN112460747A (en) * | 2020-11-19 | 2021-03-09 | 珠海格力电器股份有限公司 | Communication control method and device of split air conditioner, storage medium and lower computer |
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