CN111866732B - Method, system, controller and electronic price tag for detecting position change of electronic price tag - Google Patents

Method, system, controller and electronic price tag for detecting position change of electronic price tag Download PDF

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Publication number
CN111866732B
CN111866732B CN201910353144.8A CN201910353144A CN111866732B CN 111866732 B CN111866732 B CN 111866732B CN 201910353144 A CN201910353144 A CN 201910353144A CN 111866732 B CN111866732 B CN 111866732B
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electronic price
price tag
identity information
adjacent
tag
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CN111866732A (en
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梁敏
吉亚平
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Hanshuo Technology Co ltd
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Hanshuo Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/35—Services specially adapted for particular environments, situations or purposes for the management of goods or merchandise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The invention provides a method, a system, a controller and an electronic price tag for detecting position change of the electronic price tag, wherein the method comprises the following steps: the controller sends a detection mode starting instruction; after receiving the instruction, the first electronic price tag sends the identity information of the first electronic price tag; the second electronic price tag sends the received identity information of the adjacent electronic price tag to the controller according to the instruction; and the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag. According to the technical scheme, the electronic price tags with changed positions can be detected in time based on the adjacent electronic price tag change conditions of the electronic price tags without repositioning all the electronic price tags within the business range, and the electronic price tags with changed positions can be repositioned in a targeted manner, so that the power consumption of the electronic price tags without changed positions and the power consumption of a system are saved, and the service lives of the price tags are prolonged.

Description

Method, system, controller and electronic price tag for detecting position change of electronic price tag
Technical Field
The invention relates to the technical field of electronic price tags, in particular to a method, a system, a controller and an electronic price tag for detecting position change of the electronic price tag.
Background
The electronic price tags are likely to move in position in a business overload environment, the position change can be found only through a repositioning mode after the current electronic price tags move in position, the number of the price tags which move in position in actual business overload is limited, the repositioning mode can not find the position change of the price tags timely, and the power consumption of the electronic price tags which do not change in position and the power consumption of a system are greatly wasted by starting and positioning the price tags which do not change in position, so that the service life of the price tags is reduced.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a method for detecting position change of an electronic price tag, which is used for detecting the position change of the electronic price tag without repositioning all electronic price tags within a business surpassing range, and comprises the following steps:
the method comprises the steps that a controller sends a detection mode starting instruction to a preset number of first electronic price tags and a preset number of second electronic price tags;
after receiving a detection mode starting instruction, the first electronic price tag sends identity information of the first electronic price tag;
the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode starting instruction, and sends the received identity information of the adjacent electronic price tag to the controller;
the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and relocates the second electronic price tag when the position change of the second electronic price tag is determined.
The embodiment of the invention also provides a method for detecting the position change of the electronic price tag, which is applied to the controller in the embodiment of the invention and is used for detecting the position change of the electronic price tag without repositioning all the electronic price tags within the quotient range, and the method comprises the following steps:
sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags;
receiving a starting instruction of the second electronic price tag according to the detection mode, and feeding back the identity information of the adjacent electronic price tags within a preset detection time period;
determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag;
repositioning the second electronic price tag upon determining that the position of the second electronic price tag has changed.
The embodiment of the invention provides a method for detecting position change of an electronic price tag, which is applied to a first electronic price tag in the embodiment of the invention and is used for detecting the position change of the electronic price tag without repositioning all electronic price tags within a quotient range, and the method comprises the following steps:
receiving a detection mode starting instruction;
and after receiving a detection mode starting instruction, sending the identity information of the first electronic price tag.
The embodiment of the invention provides a method for detecting position change of an electronic price tag, which is applied to a second electronic price tag in the embodiment of the invention and is used for detecting the position change of the electronic price tag without repositioning all electronic price tags within a quotient range, and the method comprises the following steps:
receiving a detection mode starting instruction; receiving identity information of adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction;
and sending the received identity information of the adjacent electronic price tags to the controller.
The embodiment of the invention also provides a system for detecting the position change of the electronic price tag, which is used for detecting the position change of the electronic price tag without repositioning all electronic price tags within the quotient range, and comprises the following components: the system comprises a controller, a first electronic price tag, a second electronic price tag and a controller, wherein the first electronic price tag and the second electronic price tag are in preset numbers; wherein:
the controller is used for sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags; determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position change of the second electronic price tag is determined;
the first electronic price tag is used for sending the identity information of the first electronic price tag after receiving a detection mode starting instruction;
and the second electronic price tag is used for receiving the identity information of the adjacent electronic price tag within a preset detection time period according to the detection mode starting instruction and sending the received identity information of the adjacent electronic price tag to the controller.
The embodiment of the invention also provides a controller for detecting the position change of the electronic price tag, which is used for detecting the position change of the electronic price tag without repositioning all electronic price tags within the business surpassing range, and the controller comprises:
the first sending unit is used for sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags;
the first receiving unit is used for receiving the identity information of the adjacent electronic price tags fed back by the second electronic price tag according to the detection mode starting instruction within a preset detection time period;
the determining unit is used for determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag;
and the repositioning unit is used for repositioning the second electronic price tag when the position of the second electronic price tag is determined to be changed.
An embodiment of the present invention further provides an electronic price tag, that is, a first electronic price tag in the embodiment of the present invention, which is used to detect a position change of the electronic price tag without repositioning all electronic price tags within a business surpass, where the electronic price tag includes:
the second receiving unit is used for receiving a detection mode starting instruction;
and the second sending unit is used for sending the identity information of the first electronic price tag after receiving the detection mode starting instruction.
An embodiment of the present invention further provides an electronic price tag, that is, a second electronic price tag in the embodiment of the present invention, which is used to detect a position change of the electronic price tag without repositioning all electronic price tags within a business surpass, where the electronic price tag includes:
a third receiving unit, configured to receive a detection mode start instruction; receiving identity information of adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction;
and the third sending unit is used for sending the received identity information of the adjacent electronic price tags to the controller.
Embodiments of the present invention further provide a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the method for detecting a change in a position of an electronic price tag.
An embodiment of the present invention also provides a computer-readable storage medium storing a computer program for executing the method of detecting a change in position of an electronic price tag.
The technical scheme provided by the embodiment of the invention comprises the following steps: the controller sends a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags; after receiving a detection mode starting instruction, the first electronic price tag sends identity information of the first electronic price tag; the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode starting instruction, and sends the received identity information of the adjacent electronic price tag to the controller; the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and relocates the second electronic price tag when the position of the second electronic price tag is determined to be changed, so that the electronic price tag with the changed position can be timely detected based on the information change condition of the adjacent electronic price tag of the electronic price tag without relocating all electronic price tags within the range of the merchant, and the electronic price tag with the changed position can be relocated specifically, thereby saving the power consumption of the electronic price tag without the changed position and the system power consumption, and prolonging the service life of the electronic price tag.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a flow chart illustrating a method for detecting a change in position of an electronic price tag in an embodiment of the present invention;
FIG. 2 is a schematic diagram of an application scenario and principle for detecting a change in a position of an electronic price tag according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an application scenario and principle for detecting a change in the position of an electronic price tag according to another embodiment of the present invention;
FIG. 4 is a flow chart illustrating a method of detecting a change in position of an electronic price tag in accordance with yet another embodiment of the present invention;
FIG. 5 is a flow chart illustrating a method for detecting a change in position of an electronic price tag applied to a controller in an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a method of detecting a change in position of an electronic price tag as applied to a first electronic price tag in an embodiment of the present invention;
FIG. 7 is a flow chart illustrating a method of detecting a change in position of an electronic price tag as applied to a second electronic price tag in an embodiment of the present invention;
FIG. 8 is a block diagram of a system for detecting a change in position of an electronic price tag in an embodiment of the present invention;
FIG. 9 is a schematic diagram of a controller for detecting a change in position of an electronic price tag in an embodiment of the present invention;
FIG. 10 is a schematic diagram of a first electronic price tag for detecting a change in position of the electronic price tag in an embodiment of the present invention;
FIG. 11 is a schematic diagram of a second electronic price tag for detecting a change in position of the electronic price tag in an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a second electronic price tag according to yet another embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
The inventor finds that: according to the scheme, the position change of the electronic price tag is found by repositioning all the electronic price tags within the business range in the prior art, so that the position change of the price tag cannot be found in time, the repositioning is started for the price tag with the unchanged position, the power consumption of the electronic price tag and a system can be greatly wasted, and the service life of the price tag is reduced.
The inventor finds the technical problems, and provides a method capable of automatically detecting the position movement of the electronic price tag aiming at the full-field electronic price tag in the business overload environment, and then the price tag with the position change is repositioned in a targeted mode, so that the real-time performance is higher, the power consumption of the electronic price tag and the system is reduced, and the service life of the electronic price tag is prolonged. The scheme for detecting the position change of the electronic price tag will be described in detail below.
Fig. 1 is a schematic flowchart of a method for detecting a change in position of an electronic price tag according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step 101: the controller sends a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags;
step 102: after receiving a detection mode starting instruction, the first electronic price tag sends identity information of the first electronic price tag;
step 103: the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode starting instruction, and sends the received identity information of the adjacent electronic price tag to the controller;
step 104: the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and relocates the second electronic price tag when the position change of the second electronic price tag is determined.
As shown in fig. 1 and fig. 8, the method for detecting a change in position of an electronic price tag according to the embodiment of the present invention is implemented as follows:
firstly, the controller can send a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags through the base station, namely, a large number of first electronic price tags and second electronic price tags are controlled to enter a detection mode.
Secondly, after each first electronic price tag receives a detection mode starting instruction, the identity information of the first electronic price tags is sent in a time-slot staggered mode, the identity information can be electronic price tag codes and the like, and at the moment, a plurality of first electronic price tags are electronic price tags in a sending mode; the second electronic price tag receives the identity information of all adjacent electronic price tags within a preset detection time period, namely within a detection time window according to a detection mode starting instruction, the received identity information of the adjacent electronic price tags can be sent to a controller (a control center) through a base station, at the moment, the second electronic price tag is the electronic price tag in a receiving mode, if the position of the second electronic price tag is not changed, the prestored identity information of the adjacent first electronic price tag is received, and if the position of the second electronic price tag is changed, the received identity information of the electronic price tag which is possibly different from the prestored identity information of the adjacent first electronic price tag is received.
Then, the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag; the relationship between the second electronic price tag and the adjacent first electronic price tag identity information may be a table, a chart or the like, in which the first electronic price tag identity information adjacent to the second electronic price tag is stored, and the schematic of the relationship may be as shown in table 1 below. The controller may match the identity information of the adjacent electronic price tag received by the second electronic price tag to the relationship, and if the identity information of the adjacent electronic price tag received by the second electronic price tag does not match the identity information of the adjacent first electronic price tag in the relationship, the position of the second electronic price tag is changed.
Figure BDA0002044604170000061
TABLE 1
Compared with the prior art, the technical scheme of repositioning all electronic price tags in the business super and detecting the change of the positions of the electronic price tags is realized, the electronic price tags with changed positions can be detected in time based on the information change condition of the adjacent electronic price tags of the electronic price tags without repositioning all electronic price tags in the business super, and the electronic price tags with changed positions can be repositioned in a targeted manner, so that the power consumption of the electronic price tags without changed positions and the system power consumption are saved, and the service life of the electronic price tags is prolonged.
In particular, the method for detecting a change in the position of an electronic price tag may be applied to a system for detecting a change in the position of an electronic price tag, which will be described below.
The following describes the steps of the method for detecting a change in the position of an electronic price tag according to an embodiment of the present invention in detail.
In one embodiment, the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode start instruction, and sends the received identity information of the adjacent electronic price tag to the controller, including:
the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode starting instruction, estimates the signal power of the adjacent electronic price tag, and sends the received identity information of the adjacent electronic price tag and the estimated signal power of the adjacent electronic price tag to the controller;
the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and the method comprises the following steps:
the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
In specific implementation, the second electronic price tag receives the identity information of the adjacent electronic price tag and also needs to estimate the signal power of the adjacent electronic price tag according to a detection mode starting instruction within a preset detection time period; when the controller judges the change condition of the adjacent first electronic price tag of the second electronic price tag, the controller needs to combine signal power information besides the identity information of the electronic price tag, so that the accuracy of detecting the position change of the electronic price tag is improved.
In practical implementation, the relationship between the pre-stored identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag may also be a table as shown in table 1, which is not illustrated here.
In one embodiment, the controller determines the position change of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the prestored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag, and includes:
the controller compares the identity information of the adjacent electronic price tag received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and compares the signal power of the adjacent electronic price tag estimated by the second electronic price tag with the signal power in the relation;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag and the estimated signal power in the relationship of the second electronic price tag is greater than a preset power threshold, the controller determines that the position of the second electronic price tag changes.
In specific implementation, when the information change condition of the adjacent first electronic price tag of the second electronic price tag is judged, the change condition may include the following conditions:
example 1: as shown in fig. 2, if the identity information of the adjacent electronic price tag received by the second electronic price tag (electronic price tag No. 1) is electronic price tag No. 2, electronic price tag No. 3, electronic price tag No. 4, electronic price tag No. 5, and electronic price tag No. 6, which is identical to the first electronic price tag identity information stored in the above-mentioned relationship adjacent to the second electronic price tag, and the received power difference (the power difference between the estimated signal power of the adjacent electronic price tag by the second electronic price tag and the signal power in the relationship) is smaller than the threshold, it is determined that the position of the second electronic price tag has not changed.
Example 2: as shown in fig. 3, if the identity information of the adjacent electronic price tag received by the second electronic price tag is the 7 th electronic price tag, the 8 th electronic price tag, the 9 th electronic price tag, the 10 th electronic price tag, the 11 th electronic price tag, the 12 th electronic price tag, which is not identical to the first electronic price tag identity information stored in the above-mentioned relationship adjacent to the second electronic price tag, it is determined that the position of the second electronic price tag (No. 1) is changed, and it is possible to be moved.
Example 3: through comparison and matching, although the identity information of the adjacent electronic price tags received by the second electronic price tag is the 2 # electronic price tag, the 3 # electronic price tag, the 4 # electronic price tag and the 5 # electronic price tag, through comparison, the signal power of the adjacent electronic price tags received by the second electronic price tag changes, if the power change situation exceeds a preset change threshold (namely the power difference value between the signal power of the adjacent electronic price tags estimated by the second electronic price tag and the signal power in the relation is greater than the preset power threshold), namely the change is larger, the position of the second electronic price tag is determined to have changed, the second electronic price tag with the changed position is repositioned in a targeted manner, the power consumption is reduced, and the accuracy of detecting the position change of the electronic price tags is improved.
An example is shown below in conjunction with fig. 4 to illustrate how the present invention may be implemented.
The method of detecting a price tag position shift (change) may include the steps of:
1. the control center (controller) controls a large number of modules A (first electronic price tags) and B (second electronic price tags) to enter a detection mode (a mode of sending a detection mode starting instruction) through the base station equipment;
2. the module A starts to transmit own identity information (identity information of a first electronic price tag) in a time-slot staggered manner at a synchronous time point according to control information (a detection mode starting instruction);
3. the module B starts to be in a detection time window at a synchronous time point according to the control information (a detection mode starting instruction), and receives the identity information sent by all the modules A (if the position of the second electronic price tag is changed, the received identity information is not the identity information of the module A, but the identity information of the adjacent electronic price tag after the position is changed);
4. after the detection time window is finished, the module B sends the received module A identity and the signal power to the control center through the base station equipment;
5. the control center collects information of the neighbor module A reported by the module B (if the position of the second electronic price tag is changed, the received information is not the identity information of the module A, but the identity information of the adjacent electronic price tag after the position is changed), repeats the steps according to a certain period, and judges whether the information of the neighbor module A is changed and whether the change exceeds a set threshold;
6. if the position of the module B exceeds a set threshold (a preset threshold), the control center considers that the module B has a position change and starts to reposition.
Through the scheme, the position movement of the price tag can be automatically detected in real time based on the information change condition of the adjacent electronic price tags of the electronic price tag, the price tag with the position movement is pertinently repositioned, the power consumption of the electronic price tag and a system is reduced, and the service life of the electronic price tag is prolonged.
Based on the same inventive concept, the embodiment of the present invention further provides a method for detecting a position change of an electronic price tag, and the method may be applied to a controller described in the following embodiments, as described in the following embodiments. Since the principle of the method for detecting the change of the electronic price tag position for solving the problem is similar to that of the method applied to the system for detecting the change of the electronic price tag position, the method for detecting the change of the electronic price tag position can be implemented by referring to the method applied to the system for detecting the change of the electronic price tag position, and repeated parts are not described again. As used hereinafter, the term "module" or "unit" may implement a combination of software and/or hardware of predetermined functions. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 5 is a flowchart illustrating a method for detecting a change in position of an electronic price tag according to an embodiment of the present invention, which may be applied to a controller described in the following embodiment, as shown in fig. 5, the method including the steps of:
step 201: sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags;
step 202: receiving an instruction for starting the second electronic price tag according to the detection mode, and feeding back the identity information of the adjacent electronic price tags in a preset detection time period;
step 203: determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag;
step 204: repositioning the second electronic price tag upon determining that the position of the second electronic price tag has changed.
In one embodiment, the receiving the second electronic price tag according to the detection mode starting instruction, and the identity information of the adjacent electronic price tag fed back within the preset detection time period may include:
receiving a starting instruction of the second electronic price tag according to the detection mode, and feeding back the identity information and the signal power of the adjacent electronic price tags in a preset detection time period;
determining a position change condition of the second electronic price tag according to the received identity information of the adjacent electronic price tag and a pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, which may include:
and determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
In specific implementation, the controller receives the identity information of the first electronic price tag received by the second electronic price tag and also receives the signal power estimated by the second electronic price tag; and when the controller judges the change condition of the adjacent first electronic price tag of the second electronic price tag, the controller combines the signal power in addition to the identity information of the electronic price tag, and further improves the accuracy of detecting the position change of the electronic price tag.
In one embodiment, determining the position change of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and a pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag may include:
comparing the identity information of the adjacent electronic price tags received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and comparing the signal power of the adjacent electronic price tags estimated by the second electronic price tag with the signal power in the relation;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag by the second electronic price tag and the estimated signal power in the relationship is greater than a preset power threshold value, determining that the position of the second electronic price tag changes.
When the method is specifically implemented, the controller finds that the distance between the second electronic price tag and the adjacent first electronic price tag changes according to the change conditions of the identity information and the signal power, such as the signal strength corresponding to the signal power, if the information change conditions exceed a preset change threshold value, namely the change exceeds a large change value, the position of the second electronic price tag needs to be determined to change, the second electronic price tag with the changed position is repositioned in a targeted manner, the power consumption is further reduced, and the accuracy of detecting the position change of the electronic price tag is improved.
Based on the same inventive concept, the embodiment of the present invention further provides a method for detecting a position change of an electronic price tag, which can be applied to the electronic price tag (first electronic price tag) described in the following embodiments, such as the following embodiments. Since the principle of the method for detecting the change in the position of the electronic price tag is similar to that of the method applied to the system for detecting the change in the position of the electronic price tag, the method for detecting the change in the position of the electronic price tag can be implemented by referring to the implementation of the method applied to the system for detecting the change in the position of the electronic price tag, and repeated details are omitted. As used hereinafter, the term "module" or "unit" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 6 is a flowchart illustrating a method for detecting a change in position of an electronic price tag applied to a first electronic price tag according to an embodiment of the present invention, where, as shown in fig. 6, the method includes the following steps:
step 301: receiving a detection mode starting instruction;
step 302: and after receiving a detection mode starting instruction, sending the identity information of the first electronic price tag.
Compared with the electronic price tag which only has the function of displaying information such as the price of a represented commodity in the prior art, the electronic price tag provided by the embodiment of the invention has the function of assisting in detecting the position change of the electronic price tag: the detection mode starting instruction is received, and after the detection mode starting instruction is received, the identity information of the first electronic price tag is sent, so that the invention aims to timely detect the electronic price tag with the changed position without repositioning all electronic price tags in the business surpass and to purposefully reposition the electronic price tag with the changed position are achieved.
Based on the same inventive concept, the embodiment of the present invention further provides a method for detecting a position change of an electronic price tag, which can be applied to the electronic price tag (second electronic price tag) described in the following embodiments, such as the following embodiments. Since the principle of the method for detecting the change of the electronic price tag position for solving the problem is similar to that of the system for detecting the change of the electronic price tag position, the implementation of the method for detecting the change of the electronic price tag position can refer to the implementation of the system for detecting the change of the electronic price tag position, and repeated parts are not described again. As used hereinafter, the term "module" or "unit" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware or a combination of software and hardware is also possible and contemplated.
FIG. 7 is a flow chart illustrating a method of detecting a change in position of an electronic price tag as applied to a second electronic price tag in an embodiment of the present invention, as shown in FIG. 7, the method including the steps of;
step 401: receiving a detection mode starting instruction; receiving identity information of adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction;
step 402: and sending the received identity information of the adjacent electronic price tags to the controller.
In one embodiment, the method for detecting a change in position of an electronic price tag applied to the second electronic price tag may further include: estimating signal power of adjacent electronic price tags;
sending the received identity information of the adjacent electronic price tag to the controller may include: and sending the received identity information of the adjacent electronic price tags and the estimated signal power of the adjacent electronic price tags to a controller.
Compared with the electronic price tag which only has the function of displaying information such as the price of a represented commodity in the prior art, the first electronic price tag provided by the embodiment of the invention has the function of assisting in detecting the position change of the electronic price tag: receiving a detection mode starting instruction; and receiving the identity information of the adjacent electronic price tags within a preset detection time period according to the detection mode starting instruction, and sending the received identity information of the adjacent electronic price tags to the controller. In addition, after a detection mode starting instruction is received, not only is the identity information of the adjacent electronic price tag received by the second electronic price tag received, but also the signal power of the adjacent electronic price tag is estimated, the received identity information of the adjacent electronic price tag and the estimated signal power of the adjacent electronic price tag are sent to the controller, the purposes that the identity information is combined with the signal power information, all electronic price tags within the quotient range do not need to be repositioned, the electronic price tag with the changed position can be timely detected, and the electronic price tag with the changed position is pertinently repositioned are achieved.
Based on the same inventive concept, the embodiment of the present invention further provides a system for detecting a position change of an electronic price tag, as in the following embodiments. Since the principle of the system for detecting the change in the position of the electronic price tag is similar to the above-mentioned method for detecting the change in the position of the electronic price tag applied to the system, the implementation of the system for detecting the change in the position of the electronic price tag can refer to the implementation of the above-mentioned method for detecting the change in the position of the electronic price tag, and repeated details are not repeated. As used hereinafter, the term "module" or "unit" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 8 is a schematic structural diagram of a system for detecting a change in position of an electronic price tag according to an embodiment of the present invention, and as shown in fig. 8, the system includes: a preset number of first and second electronic price tags 06, 08, and a controller 02; wherein:
the controller 02 is used for sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags; determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position of the second electronic price tag is determined to be changed;
the first electronic price tag 06 is used for sending the identity information of the first electronic price tag after receiving the detection mode starting instruction;
and the second electronic price tag 08 is used for receiving the identity information of the adjacent electronic price tag within a preset detection time period according to the detection mode starting instruction and sending the received identity information of the adjacent electronic price tag to the controller.
In specific implementation, the controller provided in the embodiment of the present invention may further include a base station 04 shown in fig. 8, configured to forward signals and instructions between the controller 02 and the first electronic price tag 06 and the second electronic price tag 08. Only one first electronic price tag 06 and one second electronic price tag 08 are illustrated in fig. 8, and a plurality of first electronic price tags 06 and a plurality of second electronic price tags 08 may be included.
In one embodiment, the second electronic price tag may be specifically configured to: receiving the identity information of the adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction, estimating the signal power of the adjacent electronic price tags, and sending the received identity information of the adjacent electronic price tags and the estimated signal power of the adjacent electronic price tags to a controller;
the controller may specifically be configured to: and determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
In one embodiment, the controller may be specifically configured to:
comparing the identity information of the adjacent electronic price tags received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and comparing the signal power of the adjacent electronic price tags estimated by the second electronic price tag with the signal power in the relation;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag and the estimated signal power in the relationship is greater than a preset power threshold value, determining that the position of the second electronic price tag changes.
Based on the same inventive concept, the embodiment of the present invention further provides a controller for detecting a position change of an electronic price tag, as in the following embodiments. Since the principle of the controller for detecting the change in the position of the electronic price tag is similar to that of the above-mentioned system for detecting the change in the position of the electronic price tag, the implementation of the controller for detecting the change in the position of the electronic price tag can refer to the implementation of the above-mentioned system for detecting the change in the position of the electronic price tag, and repeated details are omitted. As used hereinafter, the term "module" or "unit" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 9 is a schematic structural diagram of a controller for detecting a change in position of an electronic price tag according to an embodiment of the present invention, and as shown in fig. 9, the controller includes:
a first transmitting unit 021, configured to transmit a detection mode start instruction to a preset number of first electronic price tags and second electronic price tags;
a first receiving unit 022, configured to receive identity information of an adjacent electronic price tag fed back by the second electronic price tag within a preset detection time period according to the detection mode starting instruction;
a determining unit 023, configured to determine a position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and a relationship between the pre-stored identity information of the second electronic price tag and the adjacent first electronic price tag;
a repositioning unit 024 configured to reposition the second electronic price tag when it is determined that the position of the second electronic price tag has changed.
In one embodiment, the first receiving unit 022 may be specifically configured to: receiving a starting instruction of the second electronic price tag according to the detection mode, and feeding back the identity information and the signal power of the adjacent electronic price tags within a preset detection time period;
the determining unit 023 may be specifically configured to: and determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
In an embodiment, the determining unit 023 may be specifically configured to:
comparing the identity information of the adjacent electronic price tags received by the second electronic price tag with the identity information of the first electronic price tag in the relationship, and comparing the signal power of the adjacent electronic price tags estimated by the second electronic price tag with the signal power in the relationship;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag by the second electronic price tag and the estimated signal power in the relationship is greater than a preset power threshold value, determining that the position of the second electronic price tag changes.
Based on the same inventive concept, an electronic price tag (first electronic price tag) is also provided in the embodiments of the present invention, as in the following embodiments. Because the principle of the electronic price tag solution is similar to that of the system for detecting the position change of the electronic price tag, the implementation of the electronic price tag can refer to the implementation of the system for detecting the position change of the electronic price tag, and repeated parts are not repeated. As used hereinafter, the term "module" or "unit" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware or a combination of software and hardware is also possible and contemplated.
Fig. 10 is a schematic structural diagram of a first electronic price tag for detecting a position change of the electronic price tag according to an embodiment of the present invention, and as shown in fig. 10, the electronic price tag includes:
a second receiving unit 061, configured to receive a detection mode start instruction;
the second sending unit 062 is configured to send the identity information of the first electronic price tag after receiving the detection mode activation instruction.
Based on the same inventive concept, an electronic price tag (second electronic price tag) is also provided in the embodiments of the present invention, as in the following embodiments. Because the principle of the electronic price tag solution is similar to that of the system for detecting the position change of the electronic price tag, the implementation of the electronic price tag can refer to the implementation of the system for detecting the position change of the electronic price tag, and repeated parts are not repeated. As used hereinafter, the term "module" or "unit" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware or a combination of software and hardware is also possible and contemplated.
Fig. 11 is a schematic structural diagram of a second electronic price tag for detecting a position change of the electronic price tag according to an embodiment of the present invention, and as shown in fig. 11, the electronic price tag includes:
a third receiving unit 081 for receiving a detection mode activation instruction; receiving identity information of adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction;
and a third sending unit 083, configured to send the received identity information of the adjacent electronic price tag to the controller.
In one embodiment, as shown in fig. 12, the second electronic price tag may further include: an estimation unit 082 for estimating signal power of neighbouring electronic price tags;
the third sending unit 083 may specifically be configured to: and sending the received identity information of the adjacent electronic price tags and the estimated signal power of the adjacent electronic price tags to a controller.
Embodiments of the present invention further provide a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the method for detecting a change in a position of an electronic price tag.
An embodiment of the present invention also provides a computer-readable storage medium storing a computer program for executing the method of detecting a change in position of an electronic price tag.
The technical scheme provided by the implementation of the invention has the beneficial technical effects that: compared with the prior art, the technical scheme provided by the embodiment of the invention has the advantages that the electronic price tags with changed positions can be timely detected based on the information change condition of the adjacent electronic price tags of the electronic price tags without repositioning all the electronic price tags in the business surpass, and the electronic price tags with changed positions can be repositioned in a targeted manner, so that the power consumption of the electronic price tags without changed positions and the system power consumption are saved, and the service life of the electronic price tags is prolonged.
It will be apparent to those skilled in the art that the modules or steps of the embodiments of the invention described above may be implemented by a general purpose computing device, they may be centralized in a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that it may be stored in a memory device and executed by a computing device, and in some cases, the steps shown or described may be executed out of order, or separately as individual integrated circuit modules, or multiple modules or steps may be implemented as a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (20)

1. A method of detecting a change in position of an electronic price tag, comprising:
the method comprises the steps that a controller sends a detection mode starting instruction to a preset number of first electronic price tags and a preset number of second electronic price tags;
after receiving a detection mode starting instruction, the first electronic price tag sends identity information of the first electronic price tag;
the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode starting instruction, and sends the received identity information of the adjacent electronic price tag to the controller;
the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and relocates the second electronic price tag when the position change of the second electronic price tag is determined.
2. The method of detecting a change in position of an electronic price tag of claim 1, wherein the second electronic price tag receives identity information of an adjacent electronic price tag within a preset detection period according to a detection mode activation command, and transmits the received identity information of the adjacent electronic price tag to the controller, comprising:
the second electronic price tag receives the identity information of the adjacent electronic price tag within a preset detection time period according to a detection mode starting instruction, estimates the signal power of the adjacent electronic price tag, and sends the received identity information of the adjacent electronic price tag and the estimated signal power of the adjacent electronic price tag to the controller;
the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and the method comprises the following steps:
the controller determines the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the prestored relation between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
3. The method of detecting a change in position of an electronic price tag of claim 2, wherein the controller determines a change in position of the second electronic price tag based on the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and a pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag, comprising:
the controller compares the identity information of the adjacent electronic price tag received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and compares the signal power of the adjacent electronic price tag estimated by the second electronic price tag with the signal power in the relation;
when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference value between the estimated signal power of the adjacent electronic price tag and the estimated signal power of the relationship is larger than a preset power threshold value, the controller determines that the position of the second electronic price tag changes.
4. A method of detecting a change in position of an electronic price tag, comprising:
sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags;
receiving a starting instruction of the second electronic price tag according to the detection mode, and feeding back the identity information of the adjacent electronic price tags within a preset detection time period;
determining the position change condition of the second electronic price tag according to the received identity information of the adjacent electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag;
repositioning the second electronic price tag upon determining that the position of the second electronic price tag has changed.
5. The method of detecting a change in position of an electronic price tag of claim 4, wherein receiving a second electronic price tag activation command based on the detection mode, and feeding back the identity information of neighboring electronic price tags within a preset detection time period comprises:
receiving a starting instruction of the second electronic price tag according to the detection mode, and feeding back the identity information and the signal power of the adjacent electronic price tags within a preset detection time period;
determining the position change condition of the second electronic price tag according to the received identity information of the adjacent electronic price tag and the prestored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, wherein the determining step comprises the following steps:
and determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
6. The method of detecting a change in position of an electronic price tag of claim 5, wherein determining a change in position of the second electronic price tag based on the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and a pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag comprises:
comparing the identity information of the adjacent electronic price tags received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and comparing the signal power of the adjacent electronic price tags estimated by the second electronic price tag with the signal power in the relation;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag by the second electronic price tag and the estimated signal power in the relationship is greater than a preset power threshold value, determining that the position of the second electronic price tag changes.
7. A method of detecting a change in position of an electronic price tag, comprising:
receiving a detection mode starting instruction; the detection mode starting instruction is sent by a controller;
after receiving a detection mode starting instruction, sending identity information of a first electronic price tag; the identity information of the first electronic price tag is the identity information of the adjacent electronic price tag which is received and sent to the controller by the second electronic price tag within a preset detection time period according to a detection mode starting instruction; the controller is used for determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position change of the second electronic price tag is determined.
8. A method of detecting a change in position of an electronic price tag, comprising:
receiving a detection mode starting instruction; receiving identity information of adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction; the detection mode starting instruction is sent by a controller; the identity information of the adjacent electronic price tags is sent by the first electronic price tag after receiving a detection mode starting instruction;
sending the received identity information of the adjacent electronic price tags to a controller; the controller is used for determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position change of the second electronic price tag is determined.
9. The method of detecting a change in position of an electronic price tag of claim 8, further comprising: estimating signal power of adjacent electronic price tags;
sending the received identity information of the adjacent electronic price tags to a controller, comprising: and sending the received identity information of the adjacent electronic price tags and the estimated signal power of the adjacent electronic price tags to a controller.
10. A system for detecting a change in position of an electronic price tag, comprising: the system comprises a controller, a first electronic price tag, a second electronic price tag and a controller, wherein the first electronic price tag and the second electronic price tag are in preset numbers; wherein:
the controller is used for sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags; determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position change of the second electronic price tag is determined;
the first electronic price tag is used for sending the identity information of the first electronic price tag after receiving a detection mode starting instruction;
and the second electronic price tag is used for receiving the identity information of the adjacent electronic price tag within a preset detection time period according to the detection mode starting instruction and sending the received identity information of the adjacent electronic price tag to the controller.
11. The system for detecting a change in position of an electronic price tag of claim 10, wherein the second electronic price tag is specifically configured to: receiving the identity information of the adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction, estimating the signal power of the adjacent electronic price tags, and sending the received identity information of the adjacent electronic price tags and the estimated signal power of the adjacent electronic price tags to a controller;
the controller is specifically configured to: and determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
12. The system for detecting a change in position of an electronic price tag of claim 11, wherein the controller is specifically configured to:
comparing the identity information of the adjacent electronic price tags received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and comparing the signal power of the adjacent electronic price tags estimated by the second electronic price tag with the signal power in the relation;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag by the second electronic price tag and the estimated signal power in the relationship is greater than a preset power threshold value, determining that the position of the second electronic price tag changes.
13. A controller for detecting a change in position of an electronic price tag, comprising:
the first sending unit is used for sending a detection mode starting instruction to a preset number of first electronic price tags and second electronic price tags;
the first receiving unit is used for receiving the identity information of the adjacent electronic price tags fed back by the second electronic price tag within a preset detection time period according to the detection mode starting instruction;
the determining unit is used for determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag;
and the repositioning unit is used for repositioning the second electronic price tag when the position of the second electronic price tag is determined to be changed.
14. The controller for detecting a change in position of an electronic price tag of claim 13, wherein the first receiving unit is specifically configured to: receiving a starting instruction of the second electronic price tag according to the detection mode, and feeding back the identity information and the signal power of the adjacent electronic price tags within a preset detection time period;
the determining unit is specifically configured to: and determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag, the estimated signal power of the adjacent electronic price tag, and the pre-stored relationship between the identity information and the signal power of the second electronic price tag and the adjacent first electronic price tag.
15. The controller for detecting a change in position of an electronic price tag of claim 14, wherein the determining unit is specifically configured to:
comparing the identity information of the adjacent electronic price tags received by the second electronic price tag with the identity information of the first electronic price tag in the relation, and comparing the signal power of the adjacent electronic price tags estimated by the second electronic price tag with the signal power in the relation;
and when the identity information of the adjacent electronic price tag received by the second electronic price tag is inconsistent with the identity information of the first electronic price tag in the relationship, or when the identity information of the adjacent electronic price tag received by the second electronic price tag is consistent with the identity information of the first electronic price tag in the relationship, and the power difference between the estimated signal power of the adjacent electronic price tag by the second electronic price tag and the estimated signal power in the relationship is greater than a preset power threshold value, determining that the position of the second electronic price tag changes.
16. An electronic price tag, comprising:
the second receiving unit is used for receiving a detection mode starting instruction; the detection mode starting instruction is sent by a controller;
the second sending unit is used for sending the identity information of the first electronic price tag after receiving the detection mode starting instruction; the identity information of the first electronic price tag is the identity information of the adjacent electronic price tag which is received and sent to the controller by the second electronic price tag within a preset detection time period according to a detection mode starting instruction; the controller is used for determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position change of the second electronic price tag is determined.
17. An electronic price tag, comprising:
a third receiving unit, configured to receive a detection mode start instruction; receiving identity information of adjacent electronic price tags within a preset detection time period according to a detection mode starting instruction; the detection mode starting instruction is sent by a controller; the identity information of the adjacent electronic price tags is sent by the first electronic price tag after receiving a detection mode starting instruction;
the third sending unit is used for sending the received identity information of the adjacent electronic price tags to the controller; the controller is used for determining the position change condition of the second electronic price tag according to the identity information of the adjacent electronic price tag received by the second electronic price tag and the pre-stored relationship between the second electronic price tag and the identity information of the adjacent first electronic price tag, and repositioning the second electronic price tag when the position change of the second electronic price tag is determined.
18. The electronic price tag of claim 17, further comprising: an estimation unit for estimating a signal power of the neighboring electronic price tags;
the third sending unit is specifically configured to: and sending the received identity information of the adjacent electronic price tags and the estimated signal power of the adjacent electronic price tags to a controller.
19. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any of claims 1 to 9 when executing the computer program.
20. A computer-readable storage medium, characterized in that it stores a computer program for performing the method of any of claims 1 to 9.
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