CN114973630B - Anti-interference execution method, device, equipment and storage medium for infrared signal instruction - Google Patents
Anti-interference execution method, device, equipment and storage medium for infrared signal instruction Download PDFInfo
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- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
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- G—PHYSICS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention belongs to the technical field of signal processing, and discloses an anti-interference execution method, device and equipment for infrared signal instructions and a storage medium. The method comprises the following steps: when the air conditioner receives an infrared remote control signal sent by the remote controller, the infrared remote control signal is identified; when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal; restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal; and executing target operation corresponding to the infrared remote control signal. Through the mode, the intelligent mobile phone can be prevented from interfering with the infrared signal of the remote controller, the response probability of the air conditioner to the signal of the remote controller is improved, and the user experience of the air conditioner is improved.
Description
Technical Field
The present invention relates to the field of signal processing technologies, and in particular, to an anti-interference execution method, apparatus, device and storage medium for an infrared signal instruction.
Background
The air conditioner uses an independent infrared remote controller to control the on-off state, the set temperature, the wind speed and the like of the air conditioner. When a user presses a key on the infrared remote controller, the remote controller sends a series of infrared signals to the air conditioner controller, and the controller decodes and analyzes the infrared signals after receiving the infrared signals, so that the key operation of the user is identified and corresponding control actions are performed. At present, the air conditioner controllers in the market generally have some filtering measures on hardware and software to filter the interference such as burrs on the infrared signals. However, in practical use, it is found that some sensors of the smart phone continuously send infrared signals, which interfere with the infrared signals of the air conditioner infrared remote controller, so that a user presses a remote controller key, but the air conditioner occasionally fails to respond.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide an anti-interference execution method, device and equipment for infrared signal instructions and a storage medium, and aims to solve the technical problem that signals of an air conditioner remote controller cannot be identified due to the fact that signals of the air conditioner remote controller are interfered by infrared signals sent by a smart phone in the prior art.
In order to achieve the above object, the present invention provides an anti-interference execution method of an infrared signal instruction, the method comprising the steps of:
when the air conditioner receives an infrared remote control signal sent by a remote controller, the infrared remote control signal is identified;
when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal;
restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal;
and executing the target operation corresponding to the infrared remote control signal.
Optionally, when the air conditioner receives the infrared remote control signal sent by the remote controller, identifying the infrared remote control signal includes:
when the air conditioner receives an infrared remote control signal sent by a remote controller, converting the infrared remote control signal into a voltage signal to be identified;
matching the voltage signal to be identified with a signal instruction comparison table to obtain a matching result;
and when the matching result is that the voltage signal which is the same as the voltage signal to be identified is not stored in the signal instruction comparison table, judging that the infrared remote control signal is an invalid infrared remote control signal.
Optionally, when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal includes:
when the identification result is that the instruction corresponding to the infrared remote control signal cannot be identified, judging that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone;
determining an invalid voltage signal waveform according to the invalid infrared remote control signal;
acquiring a standard signal waveform and an interference waveform;
and determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform.
Optionally, the determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform includes:
determining a pilot portion standard signal waveform and a data portion standard signal waveform from the standard signal waveform;
determining a first code signal waveform and a second code signal waveform according to the data portion standard signal waveform;
and determining a signal waveform interference type according to the guide part standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform and the invalid voltage signal waveform.
Optionally, the determining a signal waveform interference type according to the pilot portion standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform, and the inactive voltage signal waveform includes:
determining a low-level standard duration of the guide head and a high-level standard duration of the guide head according to the standard signal waveform of the guide part;
determining a first low-level duration and a first high-level duration according to the first code signal waveform;
determining a second low level duration and a second high level duration according to the second code signal waveform;
determining the interference low-level duration and the interference high-level duration according to the interference waveform;
and determining a signal waveform interference type according to the pilot head low-level standard time length, the pilot head high-level standard time length, the first low-level time length, the first high-level time length, the second low-level time length, the second high-level time length, the interference low-level time length, the interference high-level time length and the invalid voltage signal waveform.
Optionally, the determining a signal waveform interference type according to the pilot head low level standard duration, the pilot head high level standard duration, the first low level duration, the first high level duration, the second low level duration, the second high level duration, the interference low level duration, the interference high level duration and the invalid voltage signal waveform includes:
Determining an abnormal waveform corresponding to the interfered interval according to the invalid voltage signal waveform;
determining an abnormal low level time length and an abnormal high level time length according to the abnormal waveform;
determining a low-level comparison result according to the interference low-level time length, the guide head low-level standard time length, the first low-level time length, the second low-level time length and the abnormal low-level time length;
determining a high-level comparison result according to the interference high-level time length, the guide head high-level standard time length, the first high-level time length, the second high-level time length and the abnormal high-level time length;
and determining the signal waveform interference type according to the low level comparison result and the high level comparison result.
Optionally, the restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal includes:
determining a waveform to be replaced and a target replacement waveform according to the signal waveform interference type;
and restoring the waveform to be replaced in the invalid infrared remote control signal according to the target replacement waveform to obtain a restored infrared remote control signal.
In addition, in order to achieve the above object, the present invention further provides an anti-interference execution device of an infrared signal instruction, where the anti-interference execution device of an infrared signal instruction includes:
The receiving module is used for identifying the infrared remote control signal when the air conditioner receives the infrared remote control signal sent by the remote controller;
the analysis module is used for determining a signal waveform interference type according to the invalid infrared remote control signal when the identification result is that the infrared remote control signal is the invalid infrared remote control signal interfered by the smart phone;
the restoring module is used for restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal;
and the execution module is used for executing the target operation corresponding to the restored infrared remote control signal.
In addition, in order to achieve the above object, the present invention also provides an anti-interference execution device of an infrared signal instruction, where the anti-interference execution device of an infrared signal instruction includes: the system comprises a memory, a processor, and an anti-interference execution program of infrared signal instructions stored on the memory and executable on the processor, the anti-interference execution program of infrared signal instructions configured to implement the steps of the anti-interference execution method of infrared signal instructions as described above.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon an anti-interference execution program of an infrared signal instruction, which when executed by a processor, implements the steps of the anti-interference execution method of an infrared signal instruction as described above.
When the air conditioner receives an infrared remote control signal sent by the remote controller, the infrared remote control signal is identified; when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal; restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal; and executing the target operation corresponding to the infrared remote control signal. By the method, when the interfered invalid infrared remote control signal is received, the signal waveform interference type can be determined according to the invalid infrared remote control signal, so that the restored infrared remote control signal can be reversely restored, the target operation corresponding to the restored infrared remote control signal is executed, the infrared signal of the remote controller is prevented from being interfered by the intelligent mobile phone, the response probability of the air conditioner to the signal of the remote controller is improved, and the user experience of the air conditioner is improved.
Drawings
FIG. 1 is a schematic diagram of an anti-interference execution device for infrared signal instructions of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a flowchart of a first embodiment of an anti-interference implementation method of an infrared signal command according to the present invention;
FIG. 3 is a schematic diagram of an infrared signal waveform in an embodiment of an anti-interference execution method of an infrared signal command according to the present invention;
FIG. 4 is a schematic diagram of an IR signal waveform in an embodiment of an anti-interference execution method for IR signal command according to the invention;
FIG. 5 is a flowchart of a second embodiment of an anti-interference implementation method of the infrared signal command of the present invention;
fig. 6 is a schematic waveform diagram of signal waveform interference type 1 in an embodiment of an anti-interference execution method of an infrared signal instruction according to the present invention;
FIG. 7 is a schematic waveform diagram of signal waveform interference type 2 in an embodiment of an anti-interference execution method of an infrared signal command according to the present invention;
FIG. 8 is a schematic waveform diagram of signal waveform interference type 3 in an embodiment of an anti-interference execution method of an infrared signal command according to the present invention;
fig. 9 is a schematic waveform diagram of signal waveform interference type 4 in an embodiment of an anti-interference execution method of an infrared signal instruction according to the present invention;
fig. 10 is a schematic waveform diagram of signal waveform interference type 5 in an embodiment of an anti-interference execution method of an infrared signal instruction according to the present invention;
FIG. 11 is a schematic waveform diagram of signal waveform interference type 6 in an embodiment of an anti-interference execution method of an infrared signal command according to the present invention;
Fig. 12 is a schematic waveform diagram of signal waveform interference type 7 in an embodiment of an anti-interference execution method of an infrared signal instruction according to the present invention;
FIG. 13 is a schematic waveform diagram of signal waveform interference type 8 in an embodiment of an anti-interference execution method of an infrared signal command according to the present invention;
fig. 14 is a block diagram of a first embodiment of an anti-interference execution device for infrared signal instruction of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an anti-interference execution device for infrared signal instructions of a hardware running environment according to an embodiment of the present invention.
As shown in fig. 1, the anti-interference executing device of the infrared signal instruction may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) Memory or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the structure shown in fig. 1 does not constitute a limitation of the tamper-resistant execution device of infrared signal instructions and may include more or less components than those illustrated, or may combine certain components, or may be arranged in different components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include an operating system, a network communication module, a user interface module, and an anti-interference execution program of infrared signal instructions.
In the anti-interference implementation device of the infrared signal instruction shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the anti-interference execution device for infrared signal instructions of the present invention may be disposed in the anti-interference execution device for infrared signal instructions, where the anti-interference execution device for infrared signal instructions invokes, through the processor 1001, an anti-interference execution program for infrared signal instructions stored in the memory 1005, and executes the anti-interference execution method for infrared signal instructions provided by the embodiment of the present invention.
An embodiment of the present invention provides an anti-interference execution method of an infrared signal instruction, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of an anti-interference execution method of an infrared signal instruction.
In this embodiment, the anti-interference execution method of the infrared signal instruction includes the following steps:
step S10: when the air conditioner receives the infrared remote control signal sent by the remote controller, the infrared remote control signal is identified.
It should be noted that, the execution body of the present embodiment is a controller, specifically, a controller installed on an air conditioner, may be a signal processor that receives an infrared signal, or other devices that can implement the function, and the present embodiment is not limited thereto.
It should be understood that, at present, the air conditioner uses the independent infrared remote controller to emit the infrared instruction to realize the operation, but some sensors of the smart phone continuously emit infrared signals to perform various works, so that the receiving infrared signals of the air conditioner are also affected, the signals can not be identified due to interference, that is, the air conditioner can not recognize and feed back the infrared signals emitted by the remote controller, and the user experience is poor. When the interference invalid infrared remote control signal is received, the scheme of the embodiment can determine the signal waveform interference type according to the invalid infrared remote control signal, so that the restored infrared remote control signal can be reversely restored, and the target operation corresponding to the restored infrared remote control signal is executed, so that the intelligent mobile phone can be prevented from interfering with the infrared signal of the remote controller, the response probability of the air conditioner to the signal of the remote controller is improved, and the user experience of the air conditioner is improved.
In the implementation, the air conditioner and the remote controller are in a binding state, and the infrared remote control signal emitted by the remote controller can be automatically received and identified by the air conditioner, so that after the air conditioner receives the infrared remote control signal emitted by the remote controller, the infrared remote control signal is identified.
It should be noted that the infrared remote control signal refers to an infrared remote control signal corresponding to a function selected by a user after the user selects a certain function (including but not limited to, on/off, temperature adjustment, wind direction, etc.) of the air conditioner through the remote controller.
Further, in order to accurately identify the infrared remote control signal, step S10 includes: when the air conditioner receives an infrared remote control signal sent by a remote controller, converting the infrared remote control signal into a voltage signal to be identified; matching the voltage signal to be identified with a signal instruction comparison table to obtain a matching result; and when the matching result is that the voltage signal which is the same as the voltage signal to be identified is not stored in the signal instruction comparison table, judging that the infrared remote control signal is an invalid infrared remote control signal.
It should be noted that, converting the infrared remote control signal into the voltage signal to be identified refers to: the infrared remote control signal is converted into a voltage signal composed of a series of high and low levels with different time lengths, and specifically referring to fig. 3, the infrared remote control signal generally includes a pilot bit and a data portion. The low/high level time length of the guide head is T respectively LL And T LH . The data portion is made up of a series of 0 s and 1 s. Wherein the low level of data 0 has a time length T DL The time length of the high level is T D0 The low level time length of data 1 is T DL The time length of the high level is T D1 。
It should be understood that, matching the voltage signal to be identified with the signal instruction comparison table, and obtaining a matching result means that: substituting the voltage signal to be identified into a preset signal command comparison table to perform matching, and obtaining a final matching result whether the matching is successful or not. Specifically, the signal command comparison table is a preset comparison table of signal waveforms of different voltage signals to be identified and different operation commands, and each signal waveform of the voltage signals to be identified corresponds to a unique operation command, and the operation commands include but are not limited to: power on, power off, temperature, wind speed, mode, etc.
In a specific implementation, when the matching result is that the signal instruction comparison table does not store the voltage signal identical to the voltage signal to be identified, determining that the infrared remote control signal is an invalid infrared remote control signal refers to: and when the matching result is that the signal instruction comparison table fails to match successfully, that is, the waveform corresponding to the voltage signal to be identified cannot be found in the signal instruction comparison table, judging that the infrared remote control signal is an invalid infrared remote control signal.
By the method, the received infrared remote control signal is accurately identified, so that whether the signal is restored or not is accurately determined later.
Step S20: and when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal.
It should be understood that the ir interference signal from the smart phone received at the air conditioner controller, as shown in fig. 4, includes a periodic low level signal for a period of time T NL . The interval time between two low levels is T NP . The low level signal will pull down the infrared remote control signal received from the air conditioner controller, thereby the signal of the infrared remote control is destroyed and can not be identified correctly. And T is NL For a length of time greater than T D0 And is less than T D1 Filtering is not possible, but the recovery can be performed after a specific interference type is determined.
In a specific implementation, determining the signal waveform interference type according to the invalid infrared remote control signal refers to determining an invalid voltage signal waveform of the invalid infrared remote control signal, and then analyzing by combining an interference waveform of an infrared interference signal sent by the smart phone to determine the signal waveform interference type. Specifically, the types of signal waveform interference can be divided into: 1. the data 0 high level is disturbed; 2. both adjacent data 0 high levels are disturbed; 3. the first half of the high level of data 1 is disturbed; 4. the middle part of the high level of the data 1 is interfered; 5. the second half of the high level of data 1 is disturbed; 6. adjacent two data 1 high levels are disturbed; 7. adjacent data 1 and data 0 high levels are disturbed; 8. adjacent data 0 and data 1 high levels are disturbed.
Step S30: and restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal.
After determining the signal waveform interference type, determining a corresponding to-be-replaced waveform and a target replacement waveform according to the signal waveform interference type, and replacing the to-be-replaced waveform in the invalid infrared remote control signal with the target replacement waveform to obtain the restored infrared remote control signal.
Further, in order to accurately obtain the recovered infrared remote control signal, step S30 includes: determining a waveform to be replaced and a target replacement waveform according to the signal waveform interference type; and restoring the waveform to be replaced in the invalid infrared remote control signal according to the target replacement waveform to obtain a restored infrared remote control signal.
It should be understood that the to-be-replaced waveform refers to a portion of the invalid infrared remote control signal, which is abnormally affected by the interference signal emitted from the smart phone, and the target replacement waveform is a waveform segment of the to-be-replaced waveform.
In a specific implementation, the restoring of the to-be-replaced waveform in the invalid infrared remote control signal according to the target replacement waveform refers to that the to-be-replaced waveform in the signal waveform in the invalid infrared remote control signal is taken out, then the target replacement waveform is embedded into the position of the to-be-replaced waveform, and the formed new signal waveform is the waveform of the restoring infrared remote control signal.
By the method, the invalid infrared remote control signals are accurately restored to obtain restored infrared remote control signals, interference of interference signals of the smart phone can be reduced, and remote control user experience of the air conditioner is better.
Step S40: and executing the target operation corresponding to the infrared remote control signal.
After determining the restored infrared remote control signal, the signal command comparison table is searched again, and the operation corresponding to the restored infrared remote control signal is found as the target operation and is executed.
In the embodiment, when the air conditioner receives an infrared remote control signal sent by the remote controller, the infrared remote control signal is identified; when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal; restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal; and executing the target operation corresponding to the infrared remote control signal. By the method, when the interfered invalid infrared remote control signal is received, the signal waveform interference type can be determined according to the invalid infrared remote control signal, so that the restored infrared remote control signal can be reversely restored, the target operation corresponding to the restored infrared remote control signal is executed, the infrared signal of the remote controller is prevented from being interfered by the intelligent mobile phone, the response probability of the air conditioner to the signal of the remote controller is improved, and the user experience of the air conditioner is improved.
Referring to fig. 5, fig. 5 is a flowchart of a second embodiment of an anti-interference execution method of an infrared signal command according to the present invention.
Based on the above first embodiment, the anti-interference execution method of the infrared signal instruction in this embodiment includes, at step S20:
step S201: and when the identification result is that the instruction corresponding to the infrared remote control signal cannot be identified, judging that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone.
When the identification result is an instruction that the infrared remote control signal cannot be identified, the infrared remote control signal is interfered, so that the infrared remote control signal is listed as an invalid infrared remote control signal.
Step S202: and determining an invalid voltage signal waveform according to the invalid infrared remote control signal.
It should be understood that the invalid voltage signal waveform refers to a waveform after converting an invalid infrared remote control signal into a voltage signal.
Step S203: standard signal waveforms and interference waveforms are obtained.
It should be noted that, the standard signal waveforms refer to waveforms of data 0 and data 1 in the case of being undisturbed, and the waveforms of data 0 and data 1 are each composed of a low level for a fixed duration and a high level for a fixed duration.
It should be understood that the interference waveform refers to the waveform of the infrared interference signal sent by the smart phone, that is, the waveform shown in fig. 4.
Step S204: and determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform.
In a specific implementation, determining the signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform refers to: the signal waveform interference type is determined based on the pilot portion standard signal waveform and the data portion standard signal waveform of the standard signal waveforms, and the waveform comparison between the first code signal waveform and the second code signal waveform of the data portion standard signal waveform.
Further, in order to accurately determine the signal waveform interference type, step S204 includes: determining a pilot portion standard signal waveform and a data portion standard signal waveform from the standard signal waveform; determining a first code signal waveform and a second code signal waveform according to the data portion standard signal waveform; and determining a signal waveform interference type according to the guide part standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform and the invalid voltage signal waveform.
Note that the pilot section standard signal waveform and the data section standard signal waveform are waveforms of the pilot head section and the data section as shown in fig. 3.
It should be understood that the first code signal waveform and the second code signal waveform represent a signal waveform corresponding to data 0 and a data waveform corresponding to data 1 in the data portion standard signal waveform, respectively (as shown in fig. 3).
In a specific implementation, determining a signal waveform interference type from the pilot portion standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform, and the invalid voltage signal waveform refers to: and (3) deriving the low-level duration and the high-level duration in the guide part standard signal waveform, the first code signal waveform and the second code signal waveform, and then comparing the obtained signals with the invalid voltage signal waveform to determine the signal waveform interference type.
In this way, the determination of the type of signal waveform disturbance can be made more accurate based on the comparison of the undisturbed standard waveform with the null voltage signal waveform.
Further, in order to more accurately determine the signal waveform interference type by the duration of the high and low levels, the step of determining the signal waveform interference type from the pilot portion standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform, and the invalid voltage signal waveform includes: determining a low-level standard duration of the guide head and a high-level standard duration of the guide head according to the standard signal waveform of the guide part; determining a first low-level duration and a first high-level duration according to the first code signal waveform; determining a second low level duration and a second high level duration according to the second code signal waveform; determining the interference low-level duration and the interference high-level duration according to the interference waveform; and determining a signal waveform interference type according to the pilot head low-level standard time length, the pilot head high-level standard time length, the first low-level time length, the first high-level time length, the second low-level time length, the second high-level time length, the interference low-level time length, the interference high-level time length and the invalid voltage signal waveform.
It should be noted that, as shown in fig. 3, the pilot low level standard duration and the pilot high level standard duration are respectively T LL And T LH The first low level duration and the first high level duration are respectively T DL And T D0 The second low level duration and the second high level duration are respectively T DL And T D1 . Referring to fig. 4, the interference low level duration and the interference high level duration are respectively T NL And T NP 。
It should be understood that determining the signal waveform interference type according to the pilot head low level standard duration, the pilot head high level standard duration, the first low level duration, the first high level duration, the second low level duration, the second high level duration, the interference low level duration, the interference high level duration, and the invalid voltage signal waveform refers to: splitting the invalid voltage signal waveform to obtain an abnormal waveform in the invalid voltage signal waveform, determining an abnormal low-level duration and an abnormal high-level duration in the abnormal waveform, and finally comparing the abnormal low-level duration and the abnormal high-level duration with a guide head low-level standard duration, a guide head high-level standard duration, a first low-level duration, a first high-level duration, a second low-level duration, a second high-level duration, an interference low-level duration and an interference high-level duration, thereby determining the signal waveform interference type.
By the method, the signal waveform interference type is accurately judged by comparing the time lengths of the low level and the high level, so that the infrared remote control signal is restored more accurately.
Further, in order to accurately compare signal waveforms, the step of determining a signal waveform interference type according to the pilot head low level standard duration, the pilot head high level standard duration, the first low level duration, the first high level duration, the second low level duration, the second high level duration, the interference low level duration, the interference high level duration and the invalid voltage signal waveform includes: determining an abnormal waveform corresponding to the interfered interval according to the invalid voltage signal waveform; determining an abnormal low level time length and an abnormal high level time length according to the abnormal waveform; determining a low-level comparison result according to the interference low-level time length, the guide head low-level standard time length, the first low-level time length, the second low-level time length and the abnormal low-level time length; determining a high-level comparison result according to the interference high-level time length, the guide head high-level standard time length, the first high-level time length, the second high-level time length and the abnormal high-level time length; and determining the signal waveform interference type according to the low level comparison result and the high level comparison result.
The determining, according to the invalid voltage signal waveform, an abnormal waveform corresponding to the section that is disturbed refers to: and locking a waveform section in which abnormality cannot be identified from the waveform of the invalid voltage signal, namely, an abnormal waveform.
It should be understood that the low level comparison result is a result of comparing the abnormal low level duration in the abnormal waveform with the interference low level duration, the pilot head low level standard duration, the first low level duration, and the second low level duration, thereby determining the quantitative relationship between the respective durations.
In a specific implementation, the high level comparison result is a result of comparing an abnormal high level duration in the abnormal waveform with an interference high level duration, the guide head high level standard duration, a first high level duration and a second high level duration, so as to determine the number relation between the durations.
It should be noted that, determining the signal waveform interference type according to the low level comparison result and the high level comparison result specifically includes 8 cases:
case 1: the data 0 high level is disturbed.
As shown in fig. 6, the dashed box indicates that the signal of the infrared remote controller is forced to be low due to interference of the infrared signal emitted by the smart phone. The point A and the point B are all low level and the time length is just T DL +T D0 +T DL . Normally, the time length of the low level is only T DL Or T LL And due to positiveT of constant signal D1 Greater than T DL +T D0 +T DL It is concluded that a high level of T is lost between A and B D0 A signal.
Case 2: both adjacent data 0 high levels are disturbed.
As shown in FIG. 7, the infrared signal is forced to be pulled to low level due to interference between the B point and the C point, and the time length is T NL . Normally, the time length of the low level is only T DL Or T LL . Abnormal high level signals appear between the A point and the B point and between the C point and the D point. Normally, the time length of 3 possible high levels is ordered as T LH >T D1 >T D0 . While the length of these two high levels between AB and CD is significantly smaller than T D0 . The sum of the time lengths of AB, BC and CD is just T DL +T D0 +T DL It follows that two adjacent data 0 high levels are disturbed.
Case 3: the first half of the high level of data 1 is disturbed.
As shown in FIG. 8, after being interfered, the point A to the point B are low level, and the time length is longer than T DL . The time length from the point B to the point C is less than T D1 . But the sum of AB plus BC is just T DL +T D1 From this is ascertained an interfered data 1 signal.
Case 4: the middle part of the data 1 high level is disturbed.
As shown in fig. 9, the middle part of the high level of data 1 is disturbed, and divided into a high level AB, a low level BC, and a high level CD. Wherein the BC low level length is significantly greater than the normal data low level length T DL And is significantly smaller than the low level T of the pilot head LL . Considering BC in combination with AB and CD, the sum of the three is just T D1 . BC can be inferred as an interfering signal.
Case 5: the high-level second half of data 1 is disturbed.
As shown in fig. 10, BC is low after being disturbed, and the time length is significantly longer than the low length T of the normal signal DL But is high in electricityThe sum of the time lengths of the flat AB and the low level is just T DL +T D1 It can be deduced from this that the AC contains a high level T of data 1 in the middle D1 And low level T of next data DL 。
Case 6: the adjacent two data 1 high levels are disturbed.
As shown in fig. 11, BC is low after being disturbed, and the time length is significantly longer than the low length T of the normal signal DL The sum of the time lengths of the AB, BC and CD signals is T when the two signals AB and CD are combined D1 +T DL +T D1 It follows that a high level of data 1 and another full low/high level of data 1 are included between the ADs.
Case 7: adjacent data 1 and data 0 high levels are disturbed.
As shown in fig. 12, BC is low after being disturbed, and the time length is significantly longer than the low length T of the normal signal DL The sum of the time lengths of the AB, BC and CD signals is T when the two signals AB and CD are combined D1 +T DL +T D0 And AB is significantly longer than T D0 CD length is significantly smaller than T D0 . It follows that the data 1 high level, the data 0 low level and the high level are sequentially included between the ADs.
Case 8: adjacent data 0 and data 1 high levels are disturbed.
As shown in fig. 13, BC is low after being disturbed, and the time length is significantly longer than the low length T of the normal signal DL The sum of the time lengths of the AB, BC and CD signals is T when the two signals AB and CD are combined D1 +T DL +T D0 And AB is significantly less than T in length D0 The length of CD is obviously longer than T D0 . It follows that the data 0 high level, the data 1 low level and the high level are sequentially included between the ADs.
By the method, accurate judgment of accurate categories of signal waveform interference types is achieved, and therefore infrared remote control signals can be restored more accurately.
According to the embodiment, when the identification result is that the instruction corresponding to the infrared remote control signal cannot be identified, the infrared remote control signal is judged to be an invalid infrared remote control signal interfered by the smart phone; determining an invalid voltage signal waveform according to the invalid infrared remote control signal; acquiring a standard signal waveform and an interference waveform; and determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform. By the method, the invalid voltage signal waveform based on the invalid infrared remote control signal is realized, and then the signal waveform interference type is determined by comparing the invalid voltage signal waveform with the standard signal waveform and the interference waveform, so that the signal waveform interference type of the infrared remote control signal can be accurately identified, and the infrared remote control signal can be restored more accurately.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores an anti-interference execution program of the infrared signal instruction, and the anti-interference execution program of the infrared signal instruction realizes the steps of the anti-interference execution method of the infrared signal instruction when being executed by a processor.
The storage medium adopts all the technical solutions of all the embodiments, so that the storage medium has at least all the beneficial effects brought by the technical solutions of the embodiments, and is not described in detail herein.
Referring to fig. 14, fig. 14 is a block diagram showing the structure of a first embodiment of an anti-interference execution device for infrared signal instruction according to the present invention.
As shown in fig. 14, an anti-interference execution device for an infrared signal instruction according to an embodiment of the present invention includes:
and the receiving module 10 is used for identifying the infrared remote control signal sent by the remote controller when the air conditioner receives the infrared remote control signal.
And the analysis module 20 is used for determining the signal waveform interference type according to the invalid infrared remote control signal when the identification result is that the infrared remote control signal is the invalid infrared remote control signal interfered by the smart phone.
And the restoring module 30 is configured to restore the invalid infrared remote control signal according to the signal waveform interference type, so as to obtain a restored infrared remote control signal.
And the execution module 40 is configured to execute the target operation corresponding to the restored infrared remote control signal.
In the embodiment, when the air conditioner receives an infrared remote control signal sent by the remote controller, the infrared remote control signal is identified; when the identification result is that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone, determining a signal waveform interference type according to the invalid infrared remote control signal; restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal; and executing the target operation corresponding to the infrared remote control signal. By the method, when the interfered invalid infrared remote control signal is received, the signal waveform interference type can be determined according to the invalid infrared remote control signal, so that the restored infrared remote control signal can be reversely restored, the target operation corresponding to the restored infrared remote control signal is executed, the infrared signal of the remote controller is prevented from being interfered by the intelligent mobile phone, the response probability of the air conditioner to the signal of the remote controller is improved, and the user experience of the air conditioner is improved.
In an embodiment, the receiving module 10 is further configured to convert the infrared remote control signal into the voltage signal to be identified when the air conditioner receives the infrared remote control signal sent by the remote controller; matching the voltage signal to be identified with a signal instruction comparison table to obtain a matching result; and when the matching result is that the voltage signal which is the same as the voltage signal to be identified is not stored in the signal instruction comparison table, judging that the infrared remote control signal is an invalid infrared remote control signal.
In an embodiment, the analysis module 20 is further configured to determine that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone when the identification result is that the instruction corresponding to the infrared remote control signal cannot be identified; determining an invalid voltage signal waveform according to the invalid infrared remote control signal; acquiring a standard signal waveform and an interference waveform; and determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform.
In an embodiment, the analysis module 20 is further configured to determine a pilot portion standard signal waveform and a data portion standard signal waveform according to the standard signal waveform; determining a first code signal waveform and a second code signal waveform according to the data portion standard signal waveform; and determining a signal waveform interference type according to the guide part standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform and the invalid voltage signal waveform.
In an embodiment, the analysis module 20 is further configured to determine a pilot low level standard duration and a pilot high level standard duration according to the pilot portion standard signal waveform; determining a first low-level duration and a first high-level duration according to the first code signal waveform; determining a second low level duration and a second high level duration according to the second code signal waveform; determining the interference low-level duration and the interference high-level duration according to the interference waveform; and determining a signal waveform interference type according to the pilot head low-level standard time length, the pilot head high-level standard time length, the first low-level time length, the first high-level time length, the second low-level time length, the second high-level time length, the interference low-level time length, the interference high-level time length and the invalid voltage signal waveform.
In an embodiment, the analysis module 20 is further configured to determine an abnormal waveform corresponding to the disturbed section according to the invalid voltage signal waveform; determining an abnormal low level time length and an abnormal high level time length according to the abnormal waveform; determining a low-level comparison result according to the interference low-level time length, the guide head low-level standard time length, the first low-level time length, the second low-level time length and the abnormal low-level time length; determining a high-level comparison result according to the interference high-level time length, the guide head high-level standard time length, the first high-level time length, the second high-level time length and the abnormal high-level time length; and determining the signal waveform interference type according to the low level comparison result and the high level comparison result.
In an embodiment, the restoration module 30 is further configured to determine a to-be-replaced waveform and a target replacement waveform according to the signal waveform interference type; and restoring the waveform to be replaced in the invalid infrared remote control signal according to the target replacement waveform to obtain a restored infrared remote control signal.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may refer to the anti-interference execution method of the infrared signal instruction provided in any embodiment of the present invention, which is not described herein.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (9)
1. The anti-interference execution method of the infrared signal instruction is characterized by comprising the following steps of:
when the air conditioner receives an infrared remote control signal sent by a remote controller, the infrared remote control signal is identified;
when the identification result is that the instruction corresponding to the infrared remote control signal cannot be identified, judging that the infrared remote control signal is an invalid infrared remote control signal interfered by the smart phone;
determining an invalid voltage signal waveform according to the invalid infrared remote control signal;
acquiring a standard signal waveform and an interference waveform;
determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform, wherein the signal waveform interference type comprises: the data 0 high level is interfered, two adjacent data 0 high levels are interfered, the first half part of the data 1 high level is interfered, the middle part of the data 1 high level is interfered, the second half part of the data 1 high level is interfered, two adjacent data 1 high levels are interfered, adjacent data 1 and data 0 high levels are interfered, and adjacent data 0 and data 1 high levels are interfered;
restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal;
And executing the target operation corresponding to the infrared remote control signal.
2. The method of claim 1, wherein when the air conditioner receives an infrared remote control signal from a remote control, the identifying the infrared remote control signal comprises:
when the air conditioner receives an infrared remote control signal sent by a remote controller, converting the infrared remote control signal into a voltage signal to be identified;
matching the voltage signal to be identified with a signal instruction comparison table to obtain a matching result;
and when the matching result is that the voltage signal which is the same as the voltage signal to be identified is not stored in the signal instruction comparison table, judging that the infrared remote control signal is an invalid infrared remote control signal.
3. The method of claim 1, wherein said determining a signal waveform interference type from said inactive voltage signal waveform, said interference waveform, and said standard signal waveform comprises:
determining a pilot portion standard signal waveform and a data portion standard signal waveform from the standard signal waveform;
determining a first code signal waveform and a second code signal waveform according to the data portion standard signal waveform;
And determining a signal waveform interference type according to the guide part standard signal waveform, the first code signal waveform, the second code signal waveform, the interference waveform and the invalid voltage signal waveform.
4. The method of claim 3, wherein said determining a signal waveform interference type from said pilot portion standard signal waveform, said first code signal waveform, said second code signal waveform, said interference waveform, and said inactive voltage signal waveform comprises:
determining a low-level standard duration of the guide head and a high-level standard duration of the guide head according to the standard signal waveform of the guide part;
determining a first low-level duration and a first high-level duration according to the first code signal waveform;
determining a second low level duration and a second high level duration according to the second code signal waveform;
determining the interference low-level duration and the interference high-level duration according to the interference waveform;
and determining a signal waveform interference type according to the pilot head low-level standard time length, the pilot head high-level standard time length, the first low-level time length, the first high-level time length, the second low-level time length, the second high-level time length, the interference low-level time length, the interference high-level time length and the invalid voltage signal waveform.
5. The method of claim 4, wherein the determining a signal waveform interference type from the pilot head low level standard duration, pilot head high level standard duration, first low level duration, first high level duration, second low level duration, second high level duration, interference low level duration, interference high level duration, and the inactive voltage signal waveform comprises:
determining an abnormal waveform corresponding to the interfered interval according to the invalid voltage signal waveform;
determining an abnormal low level time length and an abnormal high level time length according to the abnormal waveform;
determining a low-level comparison result according to the interference low-level time length, the guide head low-level standard time length, the first low-level time length, the second low-level time length and the abnormal low-level time length;
determining a high-level comparison result according to the interference high-level time length, the guide head high-level standard time length, the first high-level time length, the second high-level time length and the abnormal high-level time length;
and determining the signal waveform interference type according to the low level comparison result and the high level comparison result.
6. The method according to any one of claims 1 to 5, wherein the recovering the invalid infrared remote control signal according to the signal waveform interference type to obtain a recovered infrared remote control signal comprises:
Determining a waveform to be replaced and a target replacement waveform according to the signal waveform interference type;
and restoring the waveform to be replaced in the invalid infrared remote control signal according to the target replacement waveform to obtain a restored infrared remote control signal.
7. An anti-interference execution device of an infrared signal instruction, which is characterized in that the anti-interference execution device of the infrared signal instruction comprises:
the receiving module is used for identifying the infrared remote control signal when the air conditioner receives the infrared remote control signal sent by the remote controller;
the analysis module is used for judging that the infrared remote control signal is an invalid infrared remote control signal interfered by the intelligent mobile phone when the identification result is an instruction corresponding to the infrared remote control signal which cannot be identified; determining an invalid voltage signal waveform according to the invalid infrared remote control signal; acquiring a standard signal waveform and an interference waveform; determining a signal waveform interference type according to the invalid voltage signal waveform, the interference waveform and the standard signal waveform, wherein the signal waveform interference type comprises: the data 0 high level is interfered, two adjacent data 0 high levels are interfered, the first half part of the data 1 high level is interfered, the middle part of the data 1 high level is interfered, the second half part of the data 1 high level is interfered, two adjacent data 1 high levels are interfered, adjacent data 1 and data 0 high levels are interfered, and adjacent data 0 and data 1 high levels are interfered;
The restoring module is used for restoring the invalid infrared remote control signal according to the signal waveform interference type to obtain a restored infrared remote control signal;
and the execution module is used for executing the target operation corresponding to the restored infrared remote control signal.
8. An anti-tamper execution device for infrared signal instructions, the device comprising: a memory, a processor, and an anti-tamper execution program of infrared signal instructions stored on the memory and executable on the processor, the anti-tamper execution program of infrared signal instructions configured to implement the anti-tamper execution method of infrared signal instructions of any one of claims 1 to 6.
9. A storage medium, wherein an anti-interference execution program of an infrared signal instruction is stored on the storage medium, and when the anti-interference execution program of the infrared signal instruction is executed by a processor, the anti-interference execution method of the infrared signal instruction according to any one of claims 1 to 6 is implemented.
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