CN113873686A - Electronic price tag base station switching method and device based on Internet of things - Google Patents
Electronic price tag base station switching method and device based on Internet of things Download PDFInfo
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- CN113873686A CN113873686A CN202111196114.4A CN202111196114A CN113873686A CN 113873686 A CN113873686 A CN 113873686A CN 202111196114 A CN202111196114 A CN 202111196114A CN 113873686 A CN113873686 A CN 113873686A
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- 238000001514 detection method Methods 0.000 claims description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/25—Maintenance of established connections
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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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 an electronic price tag base station switching method and device based on the Internet of things. And finally, if the strength value of the bound base station signal is larger than a set threshold value, the connection state of the bound base station signal and the base station signal is kept, and the communication state of the bound base station signal and the base station signal is reported to a server. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the signal strength between the electronic price tag and the corresponding bound base station is good enough, so that the base station does not need to be switched automatically, and the electronic price tag and the base station can be guaranteed to have a good connection state.
Description
Technical Field
The application relates to the technical field of electronic price tags, in particular to an electronic price tag base station switching method and device based on the Internet of things.
Background
In recent years, "new retail" has rapidly risen globally with the development of the internet and electronic commerce. From the traditional online and offline retail splitting situation, the win-win situation is slowly being stepped to the merge. At the inflection point of the consumption pattern, the physical retail enterprises start to upgrade using internet technology, and the e-commerce also vigorously develops offline stores. Electronic price tags based on the Internet of things serve as key links of people, goods, places and networks of off-line stores, and a jump type growth opportunity is met.
The electronic price tag realizes the change of the content information of the electronic price tag in a wireless communication mode through a commodity information management system and a base station, and realizes the intelligent transformation of an offline store. In a new retail application scenario, tens of thousands of electronic price tags are deployed in thousands of square spatial regions, and in order to modify information of a large number of electronic price tags, a sufficient number of base stations need to be assembled to ensure that each electronic price tag is within an effective coverage range of the base station. However, how to ensure that the electronic price tag has a good connection state with the base station is a problem which needs to be solved urgently at present.
Disclosure of Invention
Therefore, in order to solve the technical problems, an electronic price tag base station switching method and device based on the internet of things are needed.
An electronic price tag base station switching method based on the Internet of things comprises the following steps:
s10, detecting the strength of the heartbeat signal of the bound base station;
s20, recording the strength value of the bound base station signal;
and S30, if the strength value of the bound base station signal is greater than a set threshold, keeping the connection state with the base station, and reporting the communication state with the base station to a server.
In one embodiment, if the strength value of the signal of the bound base station is greater than a set threshold, the connection state with the base station is maintained, and the communication state with the base station is reported to a server, if the strength value of the signal of the base station is not greater than the set threshold, the strength value of a signal of an alternative base station is obtained, and if the strength value of the signal of the alternative base station is greater than the strength value of the signal of the bound base station, the connection is switched to the alternative base station.
In one embodiment, if the strength value of the signal of the bound base station is greater than a set threshold, the connection state with the base station is maintained, and the communication state with the base station is reported to a server, if the strength value of the signal of the base station is not greater than the set threshold, information of peripheral alternative base stations is obtained from the bound base station, whether other alternative base stations exist is judged, and if other alternative base stations exist, the strength value of the signal of the alternative base station is obtained.
In one embodiment, before the connection to the alternative base station is switched, the method further includes recording stability of the alternative base station signal within a first preset time, and if the stability of the alternative base station signal within the preset time meets a predetermined requirement, switching to connect to the alternative base station.
In one embodiment, in the detecting the strength of the heartbeat signal of the bonded base station, the strength of the heartbeat signal of the bonded base station is periodically detected.
In one embodiment, the recording the strength value of the bundled base station signal further includes:
if the variation of the strength value of the bound base station signal in a second preset time is larger than a moving threshold, judging that the electronic price tag is in a moving state, and further judging whether the strength value of the bound base station signal is larger than a set threshold;
and if the signal intensity of the bound base station is greater than the set threshold value, the bound base station is kept connected.
In one embodiment, if the strength of the signal of the bundled base station is less than the set threshold, scanning for alternative base stations is started.
In one embodiment, if the strength of the signal of the bundled base station is smaller than the set threshold, after starting scanning for the alternative base stations, the method further includes:
and selecting one of the alternative base stations with the highest signal strength to establish connection.
In one embodiment, after the connection is established by the selected one of the candidate base stations with the highest signal strength, the method further includes:
and reporting the communication state to the server.
The embodiment of the application further provides an electronic price tag base station switching device based on the internet of things, the device includes:
the detection module is used for detecting the strength of the heartbeat signal of the bound base station;
the recording module is used for recording the strength value of the bound base station signal;
and the judging module is used for judging that if the strength value of the bound base station signal is greater than a set threshold, the connecting state with the base station is kept, and the communication state with the base station is reported to a server.
According to the electronic price tag base station switching method based on the Internet of things, the strength of the heartbeat signal of the bound base station is detected, and then the strength value of the signal of the bound base station is recorded. And finally, if the strength value of the bound base station signal is larger than a set threshold value, the connection state of the bound base station signal and the base station signal is kept, and the communication state of the bound base station signal and the base station signal is reported to a server. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the signal strength between the electronic price tag and the corresponding bound base station is good enough, so that the base station does not need to be switched automatically, and the electronic price tag and the base station can be guaranteed to have a good connection state.
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Fig. 1 is a schematic flow chart of an electronic price tag base station switching method based on the internet of things in one embodiment;
fig. 2 is a schematic flow chart of the electronic price tag base station switching method based on the internet of things in one embodiment;
FIG. 3 is a diagram illustrating the relationship between an electronic price tag and a base station in one embodiment;
FIG. 4 is a diagram illustrating a relationship between an electronic price tag and two base stations according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In order to ensure the communication efficiency of the electronic price tags, there is usually a pairing and binding relationship between the electronic price tags and the base stations, so that each base station stores an electronic price tag list for its maintenance and management. The wireless communication network has the advantages of large business super-area, large quantity of electronic price tags and wide distribution space, and a plurality of base stations are required to form the wireless communication network capable of covering the business super-whole area. When a plurality of base stations work together, due to the limitation of the signal range of the base stations, when an electronic price tag is simultaneously positioned in the signal range of two or more base stations, how to intelligently seek the base station with better signal intensity to realize data communication, when the electronic price tag moves from an area A to an area B due to the adjustment of site layout, the electronic price tag is separated from the signal range of the base station in the area A, and if a flexible base station switching method is not adopted, the problems of electronic price disconnection, long time consumption in the reconnection process, influenced battery service life, untimely information updating and the like exist.
Referring to fig. 1, an embodiment of the present application provides an electronic price tag base station switching method based on the internet of things. The method comprises the following steps:
s10, detecting the strength of the heartbeat signal of the bound base station;
s20, recording the strength value of the bound base station signal;
and S30, if the strength value of the bound base station signal is greater than a set threshold, keeping the connection state with the base station, and reporting the communication state with the base station to a server.
In S10, the bound base station may be an electronic price tag bound base station.
In S20, the strength value of the bound base station signal may be detected and recorded by the electronic price tag, and the strength value of the bound base station signal may be sent to the server.
In S30, the server may store the set threshold. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the strength of the signal between the electronic price tag and the corresponding bound base station is good enough at the moment, the base station does not need to be switched, and the connection condition at the moment can be uploaded to a server for recording.
According to the electronic price tag base station switching method based on the Internet of things, the strength of the heartbeat signal of the bound base station is detected, and then the strength value of the signal of the bound base station is recorded. And finally, if the strength value of the bound base station signal is larger than a set threshold value, the connection state of the bound base station signal and the base station signal is kept, and the communication state of the bound base station signal and the base station signal is reported to a server. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the signal strength between the electronic price tag and the corresponding bound base station is good enough, so that the base station does not need to be switched automatically, and the electronic price tag and the base station can be guaranteed to have a good connection state.
In one embodiment, in S30, if the strength value of the signal of the bound base station is greater than a set threshold, the connection state with the base station is maintained, and the communication state with the base station is reported to a server, if the strength value of the signal of the base station is not greater than the set threshold, the strength value of the signal of the alternative base station is obtained, and if the strength value of the signal of the alternative base station is greater than the strength value of the signal of the bound base station, the connection is switched to the alternative base station.
When the electronic price tag is in the signal range of two or more base stations at the same time, the base station with the strongest signal needs to be switched to in time so as to ensure the stability and the accuracy of communication. And if the intensity value of the base station signal is not greater than the set threshold value. And the base station signal bound with the electronic price tag is not qualified at the moment. At this time, the surrounding alternative base stations can be automatically searched. If the strength value of the alternative base station signal is greater than the strength value of the bound base station signal, it indicates that the alternative base station signal is better at this time and also meets the predetermined requirement. Thereby switching the electronic price tag to communicate with the alternative base station.
In one embodiment, in S30, if the strength value of the signal of the bound base station is greater than a set threshold, the connection state with the base station is maintained, and the communication state with the base station is reported to a server, if the strength value of the signal of the base station is not greater than the set threshold, information of a neighboring candidate base station is obtained from the bound base station, and it is determined whether there are other candidate base stations, and if there are other candidate base stations, the strength value of the signal of the candidate base station is obtained.
That is, if the strength value of the base station signal is not greater than the set threshold, it indicates that the connection signal strength is not satisfactory at this time. The bound base station can be in communication connection with peripheral alternative base stations. And the information of the peripheral alternative base stations can be acquired through the bound base stations. And if the information of the peripheral alternative base stations can be acquired from the binding base station, judging that other alternative base stations exist. The step of obtaining strength values of the alternative base station signals may be performed at this time.
In one embodiment, before the connection to the alternative base station is switched, the method further includes recording stability of the alternative base station signal within a first preset time, and if the stability of the alternative base station signal within the preset time meets a predetermined requirement, switching to connect to the alternative base station. That is, if the strength value of the candidate base station signal is greater than the strength value of the bound base station signal, the stability of the candidate base station signal within the first preset time needs to be further determined. The first preset time may be 10 to 20 seconds. And if the stability of the alternative base station signal in the preset time meets the preset requirement, the alternative base station is stable at the moment. Thus handing over to the alternative base station.
In one embodiment, in the step S10, in detecting the strength of the heartbeat signal of the bonded base station, the strength of the heartbeat signal of the bonded base station is periodically detected. That is, the heartbeat signals of the bound base stations may be detected once at the same time interval.
Referring to fig. 2 and fig. 3, in one embodiment, the step S20, after recording the strength value of the bundled base station signal, further includes:
s40, if the variation of the strength value of the bound base station signal in a second preset time is greater than the moving threshold, determining that the electronic price tag is in a moving state, and further determining whether the strength value of the bound base station signal is greater than a set threshold;
and S51, if the signal intensity of the bound base station is greater than the set threshold, the bound base station is kept connected.
In S40, if a variation of the strength value of the bound base station signal within a second preset time is greater than a moving threshold, it indicates that the distance between the electronic price tag and the bound base station is changed. The variation of the intensity value in the second preset time is larger than the moving threshold, which indicates that the moving distance in the time period is larger. Therefore, the electronic price tag is judged to be in a moving state, and whether the strength value of the bound base station signal is greater than a set threshold value is further judged.
In S51, if the strength of the signal of the bundled base station is greater than the set threshold, it indicates that the signal is stable even though the electronic price tag moves, but the moving range is still within the effective signal coverage range of the bundled base station. No base station handover is required and therefore the connection with the bonded base station is maintained. In one embodiment, S52, if the strength of the signal of the bundled base station is less than the set threshold, then scanning for alternative base stations is started.
That is, when the signal strength of the bound base station is smaller than the set threshold, it indicates that the distance from the bound base station is far due to the movement of the electronic price tag, and the stability of the signal connection is affected. At this point, the bound base station needs to be adjusted, so the electronic price tag starts scanning for alternative base stations.
In one embodiment, the S52, if the strength of the signal of the bundled base station is less than the set threshold, further includes, after starting scanning for the alternative base stations:
and S53, selecting one of the candidate base stations with the maximum signal strength to establish connection.
Referring to fig. 4, in an embodiment, after determining that the electronic price tag is in the moving state, the method further includes indicating that the electronic price tag does not move any more when the position of the electronic price tag remains unchanged within a preset time. It will be appreciated that the location of the electronic price tag may be obtained by a positioning system, for example transmitted to a server via GPS. It will be appreciated that signal strength is not only related to distance, but also to the shielding effect of the surrounding building. Therefore, the strength of the signal cannot be determined simply by the distance. And if the signal intensity of the two base stations scanned by the electronic price tag is the same, determining the position relation between the two base stations with the same signal intensity and the electronic price tag, and then connecting the electronic price tag with the base station closest to the electronic price tag. Signal stability can therefore be improved with a high probability.
Let the coordinates of the base station A be (X1, Y1), the coordinates of the base station B be (X2, Y2), the angles of the electronic price tag receiving base station A and the base station B be theta 1 and theta 2, respectively, and the coordinates of the electronic price tag be C (X, Y), then
In one embodiment, the S53, after selecting the one of the candidate base stations with the highest signal strength to establish the connection, further includes:
and S54, reporting the communication state to the server. The communication process and the communication quality can be recorded through the server, and the functions of recording and real-time monitoring are achieved.
It should be understood that although the various steps in the flow charts of fig. 1-2 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1-2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
The embodiment of the application further provides an electronic price tag base station switching device based on the Internet of things. The electronic price tag base station switching device comprises:
the detection module is used for detecting the strength of the heartbeat signal of the bound base station;
the recording module is used for recording the strength value of the bound base station signal;
and the judging module is used for judging that if the strength value of the bound base station signal is greater than a set threshold, the connecting state with the base station is kept, and the communication state with the base station is reported to a server.
The bound base station may be an electronic price tag bound base station.
In the recording module, the strength value of the bound base station signal can be detected and recorded through the electronic price tag, and the strength value of the bound base station signal can be sent to the server.
In the determination module, a set threshold may be stored in the server. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the strength of the signal between the electronic price tag and the corresponding bound base station is good enough at the moment, the base station does not need to be switched, and the connection condition at the moment can be uploaded to a server for recording.
The electronic price tag base station switching device based on the Internet of things provided by the embodiment of the application firstly detects the strength of heartbeat signals of bound base stations and then records the strength value of the signals of the bound base stations. And finally, if the strength value of the bound base station signal is larger than a set threshold value, the connection state of the bound base station signal and the base station signal is kept, and the communication state of the bound base station signal and the base station signal is reported to a server. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the signal strength between the electronic price tag and the corresponding bound base station is good enough, so that the base station does not need to be switched automatically, and the electronic price tag and the base station can be guaranteed to have a good connection state.
In one embodiment, the determining module is further configured to obtain a strength value of a candidate base station signal if the strength value of the base station signal is not greater than the set threshold, and switch to connect to the candidate base station if the strength value of the candidate base station signal is greater than the strength value of the bound base station signal.
In one embodiment, the determining module is further configured to, if the strength value of the base station signal is not greater than the set threshold, obtain information of neighboring candidate base stations from the bound base station, determine whether there are other candidate base stations, and if there are other candidate base stations, obtain the strength value of the candidate base station signal.
In one embodiment, the determining module is further configured to record stability of the signal of the candidate base station within a first preset time before the handover connection to the candidate base station, and if the stability of the signal of the candidate base station within the preset time meets a predetermined requirement, the handover connection to the candidate base station is performed.
In one embodiment, the detection module is further configured to periodically detect the strength of the heartbeat signal of the bonded base station.
In one embodiment, the determining module is further configured to determine that the electronic price tag is in a moving state if a variation of the strength value of the bound base station signal within a second preset time is greater than a moving threshold, and further determine whether the strength value of the bound base station signal is greater than a set threshold.
In one embodiment, the determining module is further configured to maintain connection with the bundled base station if the strength of the signal of the bundled base station is greater than the set threshold.
In one embodiment, the determining module is further configured to start scanning for the alternative base station if the strength of the signal of the bundled base station is smaller than the set threshold.
In one embodiment, the electronic price tag base station switch based on the internet of things further comprises a connection module, and the connection module is used for selecting one of the candidate base stations with the highest signal strength to establish connection.
For specific limitations of the electronic price tag base station switching device based on the internet of things, reference may be made to the above limitations on the electronic price tag base station switching method based on the internet of things, and details are not repeated here. All modules in the electronic price tag base station switching device based on the Internet of things can be completely or partially realized through software, hardware and a combination of the software and the hardware. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
s10, detecting the strength of the heartbeat signal of the bound base station;
s20, recording the strength value of the bound base station signal;
and S30, if the strength value of the bound base station signal is greater than a set threshold, keeping the connection state with the base station, and reporting the communication state with the base station to a server.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
if the strength value of the base station signal is not greater than the set threshold value, obtaining the strength value of the alternative base station signal, and if the strength value of the alternative base station signal is greater than the strength value of the bound base station signal, switching to connect to the alternative base station.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
if the strength value of the base station signal is not greater than the set threshold, obtaining information of peripheral alternative base stations from the bound base station, judging whether other alternative base stations exist, and if so, obtaining the strength value of the alternative base station signal.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
before switching to connect to the alternative base station, the method further comprises recording the stability of the alternative base station signal in a first preset time, and if the stability of the alternative base station signal in the preset time meets a preset requirement, switching to connect to the alternative base station.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and periodically detecting the heartbeat signal strength of the bound base station.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
if the variation of the strength value of the bound base station signal in a second preset time is larger than a moving threshold, judging that the electronic price tag is in a moving state, and further judging whether the strength value of the bound base station signal is larger than a set threshold.
And if the signal intensity of the bound base station is greater than the set threshold value, the bound base station is kept connected.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and if the strength of the signal of the bound base station is smaller than the set threshold value, starting to scan the alternative base station.
In one embodiment, the processor, when executing the computer program, further performs the steps of:
and selecting one of the alternative base stations with the highest signal strength to establish connection.
In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, which when executed by a processor performs the steps of:
s10, detecting the strength of the heartbeat signal of the bound base station;
s20, recording the strength value of the bound base station signal;
and S30, if the strength value of the bound base station signal is greater than a set threshold, keeping the connection state with the base station, and reporting the communication state with the base station to a server.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if the strength value of the base station signal is not greater than the set threshold value, obtaining the strength value of the alternative base station signal, and if the strength value of the alternative base station signal is greater than the strength value of the bound base station signal, switching to connect to the alternative base station.
In one embodiment, the computer program when executed by the processor further performs the steps of:
if the strength value of the base station signal is not greater than the set threshold, obtaining information of peripheral alternative base stations from the bound base station, judging whether other alternative base stations exist, and if so, obtaining the strength value of the alternative base station signal.
Firstly, detecting the strength of the heartbeat signal of the bound base station, and then recording the strength value of the signal of the bound base station. And finally, if the strength value of the bound base station signal is larger than a set threshold value, the connection state of the bound base station signal and the base station signal is kept, and the communication state of the bound base station signal and the base station signal is reported to a server. If the strength value of the signal of the base station bound by the electronic price tag is greater than the set threshold value, the signal strength between the electronic price tag and the corresponding bound base station is good enough, so that the base station does not need to be switched automatically, and the electronic price tag and the base station can be guaranteed to have a good connection state.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An electronic price tag base station switching method based on the Internet of things is characterized by comprising the following steps:
detecting the strength of the heartbeat signal of the bound base station;
recording the strength value of the bound base station signal;
if the strength value of the bound base station signal is larger than a set threshold value, the connection state of the bound base station signal and the base station signal is kept, and the communication state of the bound base station signal and the base station signal is reported to a server.
2. The method for switching an electronic price tag base station based on the internet of things according to claim 1, wherein if the strength value of the signal of the bound base station is greater than a set threshold, the method keeps a connection state with the base station, and reports the signal of the bound base station to a server in a communication state with the base station, if the strength value of the signal of the base station is not greater than the set threshold, the strength value of a signal of an alternative base station is obtained, and if the strength value of the signal of the alternative base station is greater than the strength value of the signal of the bound base station, the method switches to connect to the alternative base station.
3. The method for switching an electronic price tag base station based on the internet of things as claimed in claim 2, wherein if the strength value of the signal of the bound base station is greater than a set threshold, the method keeps a connection state with the base station and reports the connection state to a server in a communication state with the base station, if the strength value of the signal of the base station is not greater than the set threshold, the method obtains information of peripheral alternative base stations from the bound base station, judges whether other alternative base stations exist, and if other alternative base stations exist, obtains the strength value of the signal of the alternative base station.
4. The method for switching the electronic price tag base station based on the internet of things of claim 3, further comprising recording the stability of the alternative base station signal within a first preset time before switching to connect to the alternative base station, and switching to connect to the alternative base station if the stability of the alternative base station signal within the preset time meets a preset requirement.
5. The Internet of things-based electronic price tag base station switching method of claim 4,
in the detecting of the heartbeat signal intensity of the bound base station, the heartbeat signal intensity of the bound base station is periodically detected.
6. The internet of things-based electronic price tag base station handover method of claim 5, wherein the recording the strength value of the bound base station signal further comprises:
if the variation of the strength value of the bound base station signal in a second preset time is larger than a moving threshold, judging that the electronic price tag is in a moving state, and further judging whether the strength value of the bound base station signal is larger than a set threshold;
and if the signal intensity of the bound base station is greater than the set threshold value, the bound base station is kept connected.
7. The Internet of things-based electronic price tag base station switching method of claim 6, wherein if the strength of the signal of the bound base station is less than the set threshold, scanning for alternative base stations is started.
8. The method for switching an electronic price tag base station based on the internet of things of claim 6, wherein if the strength of the signal of the bound base station is smaller than the set threshold, after scanning for alternative base stations is started, the method further comprises:
and selecting one of the alternative base stations with the highest signal strength to establish connection.
9. The internet of things-based electronic price tag base station switching method of claim 8, wherein after selecting the one of the plurality of candidate base stations with the highest signal strength to establish the connection, further comprising:
and reporting the communication state to the server.
10. The utility model provides an electron price tag base station auto-change over device based on thing networking which characterized in that, the device includes:
the detection module is used for detecting the strength of the heartbeat signal of the bound base station;
the recording module is used for recording the strength value of the bound base station signal;
and the judging module is used for judging that if the strength value of the bound base station signal is greater than a set threshold, the connecting state with the base station is kept, and the communication state with the base station is reported to a server.
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