CN109548058B - Communication method and device for self-adaptive switching of communication modes of multimode data radio - Google Patents
Communication method and device for self-adaptive switching of communication modes of multimode data radio Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
- H04W36/0088—Scheduling hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The application relates to a communication method and a device for self-adaptive switching of communication modes of a multimode data radio station, wherein the method comprises the following steps: detecting whether a communication signal of the multimode data transmission radio station is abnormal; when the communication signal is abnormal, the communication link switching device switches the first communication mode to the second communication mode; detecting whether the switched communication signal is abnormal; and if the abnormal condition exists, sending out alarm information. The technical scheme provided by the application can be adaptively switched to one of the communication modes according to the quality of the communication signal in practical application, the two communication modes complement each other, seamless switching is realized, and the stability and the reliability of a communication link are improved.
Description
Technical Field
The invention belongs to the field of communication, and particularly relates to a communication method and a communication device for self-adaptive switching of communication modes of a multimode data transmission radio station.
Background
In an RTK (Real-time kinematic) application scenario of GNSS (Global Navigation Satellite System) high-precision positioning, a common communication data chain may communicate in one of two communication modes: a 3G/4G network communication mode and a wireless data transfer station communication mode.
However, in the current industrial application, the working mode of the wireless data transmission radio station can be set to be one of the two modes in advance according to the application requirement of the user only through manual operation aiming at the two communication modes, and if the set communication mode is unstable due to abnormal conditions, normal application can be influenced, and the operation precision is reduced.
Disclosure of Invention
In order to solve the problems that a single communication mode is unreliable and unstable in an RTK application scene of GNSS high-precision positioning, the application provides a communication method and a communication device for self-adaptive switching of communication modes of a multimode data transmission radio station, and the stability and reliability of a communication data chain are improved.
The application provides a communication method for self-adaptive switching of communication modes of a multimode data transmission radio station, which comprises the following steps:
detecting whether a communication signal of the multimode data transmission radio station is abnormal;
when the communication signal is abnormal, the communication link switching device switches the first communication mode to the second communication mode;
detecting whether the switched communication signal is abnormal;
and if the abnormal condition exists, sending out alarm information.
Further, the detecting whether the communication signal of the multimode data radio station is abnormal includes:
acquiring a signal strength indicated value received by a multimode data transmission radio station;
acquiring a check result of cyclic redundancy check in a received data packet;
and judging whether the communication signal is abnormal or not according to the signal strength indicating value and the check result of the cyclic redundancy check.
Further, the determining whether the communication signal is abnormal according to the signal strength indication value and the check result of the cyclic redundancy check includes:
when the signal strength indicating value is larger than or equal to a first preset value and the cyclic redundancy check is correct, judging that the communication signal is abnormal;
otherwise, judging that the communication signal is abnormal.
Furthermore, the multimode data transmission station comprises a 3G/4G network communication mode and a wireless data transmission station communication mode.
Further, when the first communication mode is a 3G/4G network communication mode, the method further includes:
scanning a preset channel list through an automatic rapid scanning device of a wireless data transmission radio station;
and determining the channel selected when the communication mode is switched to the wireless data transmission radio station according to the scanning result.
A communications device for adaptive switching of communication modes of a multimode data transfer station, the device comprising:
the first detection module is used for detecting whether the communication signal of the multimode data radio station is abnormal or not;
the communication link switching module is used for switching the first communication mode into the second communication mode when the communication signal is abnormal;
the second detection module is used for detecting whether the switched communication signals are abnormal or not;
and the communication abnormity warning module is used for sending warning information when the switched communication signals are abnormal.
Further, the first detection module comprises:
the first obtaining submodule is used for obtaining a signal strength indicated value received by the multimode data transmission station;
the second obtaining submodule is used for obtaining a check result of cyclic redundancy check in the received data packet;
and the judging submodule is used for judging whether the communication signal is abnormal or not according to the signal strength indicating value and the check result of the cyclic redundancy check.
Further, the judgment sub-module is configured to,
when the signal strength indicating value is larger than or equal to a first preset value and the cyclic redundancy check is correct, judging that the communication signal is abnormal;
otherwise, judging that the communication signal is abnormal.
Further, the method also comprises the following steps:
the automatic and fast frequency sweeping module of the wireless data transmission station is used for scanning a preset channel list;
and the channel selection module is used for determining a channel selected when the communication mode is switched to the wireless data transmission radio station communication mode according to the scanning result.
Compared with the prior art, the technical scheme provided by the invention has the following advantages:
the technical scheme provided by the invention comprises the steps of detecting whether the communication signal of the current multimode data transmission station is abnormal or not, switching to another communication mode if the communication signal of the current multimode data transmission station is abnormal, judging whether the switched communication signal is abnormal or not again, and sending out alarm information if the communication signal is abnormal twice. The invention can adaptively switch to one of the communication modes according to the quality of the communication signal in practical application, the two communication modes complement each other and are switched seamlessly, and the stability and the reliability of a communication link are improved.
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The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a flow chart of a communication method for adaptive switching of communication modes of a multimode data radio in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a flow chart of a communication method for adaptive switching of communication modes of a multimode data radio in an embodiment. Referring to fig. 1, the present application provides a communication method for adaptive switching of communication modes of a multimode data radio station, the method including:
detecting whether a communication signal of the multimode data transmission radio station is abnormal;
when the communication signal is abnormal, the communication link switching device switches the first communication mode to the second communication mode;
detecting whether the switched communication signal is abnormal;
and if the abnormal condition exists, sending out alarm information.
That is, whether the communication signal of the current multimode data transmission station is abnormal or not is detected, if the communication signal is abnormal, the communication mode is switched to another communication mode, whether the switched communication signal is abnormal or not is judged again, and if the communication signal is abnormal twice, the alarm information is sent out. The invention can adaptively switch to one of the communication modes according to the quality of the communication signal in practical application, the two communication modes complement each other and are switched seamlessly, and the stability and the reliability of a communication link are improved.
In one embodiment of the present application, detecting whether a communication signal of a multimode data radio station is abnormal includes:
acquiring a signal strength indicated value received by a multimode data transmission radio station;
acquiring a check result of cyclic redundancy check in a received data packet;
and judging whether the communication signal is abnormal or not according to the signal strength indicating value and the check result of the cyclic redundancy check.
In some embodiments of the present application, determining whether the communication signal is abnormal according to the signal strength indication value and the check result of the cyclic redundancy check includes:
when the signal strength indicating value is larger than or equal to a first preset value and the cyclic redundancy check is correct, judging that the communication signal is abnormal;
otherwise, judging that the communication signal is abnormal.
In some embodiments of the present application, the multi-mode data radio includes a 3G/4G network communication mode and a radio communication mode.
Specifically, the RSSI (Received Signal Strength Indication) value of the 3G/4G module or the radio module is read, and meanwhile, whether the quality of the communication Signal is abnormal in the current communication mode is detected by combining the result of CRC (Cyclic Redundancy Check) Check in the Received data packet, and a judgment result is given. For the current communication mode, the evaluation results are two types: normal or abnormal. The determination conditions were as follows: if the RSSI value signal is stronger, such as greater than-90 dBm, and the CRC check of the data packet is correct, judging that the quality of the current communication signal is normal; if the RSSI value is strong, but the probability that the CRC check of the data packet fails is high, for example, the probability is 50%, the current communication signal is abnormal; and if the RSSI value signal is weak, such as less than-115 dBm, judging that the current communication signal is abnormal.
If the current communication mode is 3G/4G, if the detection result of the communication signal quality detection module is abnormal, the communication link switching execution module switches the current communication mode to the wireless data transmission station communication mode according to the detection result, and if the detection result of the communication signal quality detection module is normal, the communication link switching execution module does not perform switching action. Otherwise, if the current communication mode is the wireless data transfer station communication mode, if the detection result of the communication signal quality detection module is abnormal, the communication link switching execution module switches the current communication mode to the 3G/4G communication mode according to the detection result, and if the detection result of the communication signal quality detection module is normal, the communication link switching execution module does not perform the switching action.
In some embodiments of the present application, when the first communication mode is a 3G/4G network communication mode, the method further comprises:
scanning a preset channel list through an automatic rapid scanning device of a wireless data transmission radio station;
and determining the channel selected when the communication mode is switched to the wireless data transmission radio station according to the scanning result.
Specifically, a preset channel list is quickly scanned after switching, and a channel with the strongest signal is selected to be used as the current channel according to the RSSI value. The functional module must be activated when the current communication mode is the wireless data transfer station communication mode. The 3G/4G mode does not work.
When the two communication modes are abnormal, warning information is given in time, the warning information can be prompted through an indicating lamp with a special color, and meanwhile the warning information can be stored in Flash to provide information for equipment maintenance personnel to remove faults.
The embodiment of the present application further provides a communication device for adaptively switching communication modes of a multimode data radio, where the device includes:
the first detection module is used for detecting whether the communication signal of the multimode data radio station is abnormal or not;
the communication link switching module is used for switching the first communication mode into the second communication mode when the communication signal is abnormal;
the second detection module is used for detecting whether the switched communication signals are abnormal or not;
and the communication abnormity warning module is used for sending warning information when the switched communication signals are abnormal.
Optionally, the first detection module includes:
the first obtaining submodule is used for obtaining a signal strength indicated value received by the multimode data transmission station;
the second obtaining submodule is used for obtaining a check result of cyclic redundancy check in the received data packet;
and the judging submodule is used for judging whether the communication signal is abnormal or not according to the signal strength indicating value and the check result of the cyclic redundancy check.
Optionally, a judgment sub-module, configured to,
when the signal strength indicating value is larger than or equal to a first preset value and the cyclic redundancy check is correct, judging that the communication signal is abnormal;
otherwise, judging that the communication signal is abnormal.
Optionally, the apparatus further comprises:
the automatic and fast frequency sweeping module of the wireless data transmission station is used for scanning a preset channel list;
and the channel selection module is used for determining a channel selected when the communication mode is switched to the wireless data transmission radio station communication mode according to the scanning result.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A communication method for adaptive switching of communication modes of a multi-mode data transmission station is characterized by comprising the following steps:
detecting whether a communication signal of the multimode data transmission radio station is abnormal;
when the communication signal is abnormal, the communication link switching device switches the first communication mode to the second communication mode;
detecting whether the switched communication signal is abnormal;
if the abnormal condition exists, alarm information is sent out;
the multimode data transmission radio station comprises a 3G/4G network communication mode and a wireless data transmission radio station communication mode, when the first communication mode is the 3G/4G network communication mode, the 3G/4G network communication mode is switched to the wireless data transmission radio station, a preset channel list is scanned through an automatic rapid scanning device of the wireless data transmission radio station, a channel with the strongest signal is selected to be used as a current channel according to an RSSI value, and the current channel is a channel selected when the wireless data transmission radio station communication mode is adopted.
2. The communication method of claim 1, wherein the detecting whether the communication signal of the multimode data radio is abnormal comprises:
acquiring a signal strength indicated value received by a multimode data transmission radio station;
acquiring a check result of cyclic redundancy check in a received data packet;
and judging whether the communication signal is abnormal or not according to the signal strength indicating value and the check result of the cyclic redundancy check.
3. The communication method of claim 2, wherein the determining whether the communication signal is abnormal according to the signal strength indication value and the check result of the cyclic redundancy check comprises:
when the signal strength indicating value is larger than or equal to a first preset value and the cyclic redundancy check is correct, judging that the communication signal is abnormal;
otherwise, judging that the communication signal is abnormal.
4. A communications device for adaptive switching of communication modes of a multimode data transfer station, the device comprising:
the first detection module is used for detecting whether the communication signal of the multimode data radio station is abnormal or not;
the communication link switching module is used for switching the first communication mode into the second communication mode when the communication signal is abnormal;
the second detection module is used for detecting whether the switched communication signals are abnormal or not;
the communication abnormity warning module is used for sending warning information when the switched communication signals are abnormal;
the multimode data transmission radio station comprises a 3G/4G network communication mode and a wireless data transmission radio station communication mode, when the first communication mode is the 3G/4G network communication mode, the 3G/4G network communication mode is switched to the wireless data transmission radio station, a preset channel list is scanned through an automatic rapid scanning device of the wireless data transmission radio station, a channel with the strongest signal is selected to be used as a current channel according to an RSSI value, and the current channel is a channel selected when the wireless data transmission radio station communication mode is adopted.
5. The communication device of claim 4, wherein the first detecting module comprises:
the first obtaining submodule is used for obtaining a signal strength indicated value received by the multimode data transmission station;
the second obtaining submodule is used for obtaining a check result of cyclic redundancy check in the received data packet;
and the judging submodule is used for judging whether the communication signal is abnormal or not according to the signal strength indicating value and the check result of the cyclic redundancy check.
6. The communication device for adaptive switching of communication modes of a multi-mode data transmission station according to claim 5, wherein the determining sub-module is configured to,
when the signal strength indicating value is larger than or equal to a first preset value and the cyclic redundancy check is correct, judging that the communication signal is abnormal;
otherwise, judging that the communication signal is abnormal.
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| CN114076901B (en) * | 2021-11-15 | 2022-10-21 | 四川九洲电器集团有限责任公司 | Automatic testing system and method for output ripples of power supply module |
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| CN105162540B (en) * | 2015-07-29 | 2018-12-11 | 深圳市华信天线技术有限公司 | Wireless digital broadcasting station |
| CN105375948A (en) * | 2015-12-14 | 2016-03-02 | 北京纳衡仪器仪表有限公司 | Multimode wireless communication device |
| CN106936612B (en) * | 2015-12-30 | 2020-07-31 | 阿里巴巴集团控股有限公司 | Radio station switching strategy configuration method, radio station switching method and device, and terminal |
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