CN113301644A - Positioning device, system, method and computer readable storage medium for electronic price tag - Google Patents
Positioning device, system, method and computer readable storage medium for electronic price tag Download PDFInfo
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- CN113301644A CN113301644A CN202010106428.XA CN202010106428A CN113301644A CN 113301644 A CN113301644 A CN 113301644A CN 202010106428 A CN202010106428 A CN 202010106428A CN 113301644 A CN113301644 A CN 113301644A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
Abstract
The embodiment of the invention provides a positioning device, a system, a method and a computer readable storage medium of an electronic price tag, wherein the device comprises: the fixing device is provided with a plurality of contact positions, an electronic price tag is fixed at each contact position, and the electronic price tags fixed at the contact positions are communicated with the controller through communication cables; the resistance band is arranged in the fixing device and comprises a plurality of resistors which are equivalent and connected in series, each resistor corresponds to a relative position on the fixing device, the corresponding resistor and the contact position are the same on the fixing device, an electronic price tag fixed at each contact position is connected with the resistor corresponding to the contact position, and the voltage value of the resistor corresponding to the contact position is obtained; the controller receives information sent by the electronic price tags fixed at the positions of the contacts through the communication cable, determines the resistor to which the voltage value belongs according to the voltage value in the information, and positions the electronic price tag for sending the information according to the determined relative position corresponding to the resistor.
Description
Technical Field
The present invention relates to the field of indoor positioning technologies, and in particular, to a positioning device, a positioning system, a positioning method, and a computer-readable storage medium for an electronic price tag.
Background
The traditional indoor positioning methods include WiFi (i.e. mobile hotspot), BLE (Bluetooth Low Energy), UWB (Ultra Wideband, a carrier-free communication technology), RFID (Radio Frequency Identification), infrared indoor positioning technology, and the like.
The Bluetooth indoor positioning technology is used for positioning by measuring signal intensity. The method is a short-distance low-power-consumption wireless transmission technology, a proper Bluetooth local area network access point is installed indoors, the network is configured into a multi-user-based basic network connection mode, and the Bluetooth local area network access point is guaranteed to be a master device of a piconet (piconet) all the time, so that the position information of a user can be obtained. Bluetooth indoor positioning technology is mainly applied to small-range positioning, such as single-floor halls or warehouses.
The most important advantages of the bluetooth indoor positioning technology are that the equipment is small in size and easy to integrate in a PDA, a PC and a mobile phone, so that the bluetooth indoor positioning technology is easy to popularize. Theoretically, for a user who holds a mobile terminal device integrated with a bluetooth function, as long as the bluetooth function of the device is turned on, the bluetooth indoor positioning system can perform position judgment on the device. When the technology is adopted for indoor short-distance positioning, the equipment is easy to find, and signal transmission is not influenced by line of sight.
The disadvantage is that the price of the bluetooth device and the equipment is expensive, and for the complex space environment, the stability of the bluetooth system is slightly poor and the interference of noise signals is large.
The WiFi and BLE positioning schemes have low positioning accuracy, generally ranging from 8 m to 15m, and the coverage range is 75 m to 150 m. The UWB and RFID positioning accuracy is less than 10CM, the RFID coverage range is 1-5 m, and the UWB coverage range is 150 m. WiFi, BLE, UWB, these schemes of RFID all realize based on radio wave, and radio wave self characteristic is that it is higher to the environment requirement, and the construction is complicated, and stability is not good for these positioning schemes all have the defect that the cost is higher and positioning accuracy is lower.
In addition, the principle of infrared indoor positioning technology positioning is that an infrared IR marker emits modulated infrared rays, and is received by an optical sensor installed indoors for positioning.
Although infrared rays have relatively high indoor positioning accuracy, infrared rays can only travel in line of sight since light cannot pass through obstacles. The two main disadvantages of the short line-of-sight distance and the short transmission distance make the indoor positioning effect poor. When the mark is placed in a pocket or has a wall or other shelters, the mark can not work normally, and a receiving antenna needs to be installed in each room and each corridor, so that the manufacturing cost is high. Therefore, infrared is suitable only for short distance transmission, and is easily interfered by fluorescent lamps or light in a room, and there is a limitation in accurate positioning.
Disclosure of Invention
The embodiment of the invention provides a positioning device of an electronic price tag, which aims to solve the technical problems of high cost or low precision of indoor positioning in the prior art. The device includes:
the fixing device is used for fixing the electronic price tag, a plurality of contact positions are arranged on the fixing device, the electronic price tag is fixed at each contact position, and the electronic price tag fixed at each contact position is communicated with the controller through a communication cable;
the resistance band is arranged in the fixing device and comprises a plurality of resistors which are equivalent and connected in series, each resistor corresponds to a relative position on the fixing device, the resistors correspond to the contact positions one by one, the mutually corresponding resistors are the same as the positions of the contact positions on the fixing device, the electronic price tag fixed at each contact position is connected with the resistor corresponding to the contact position, and the voltage value of the resistor corresponding to the contact position is obtained;
the controller receives information sent by the electronic price tags fixed at the positions of the contacts through the communication cable, determines the resistor to which the voltage value belongs according to the voltage value in the information, and positions and sends the electronic price tags of the information according to the relative position corresponding to the determined resistor.
The embodiment of the invention also provides a positioning system of the electronic price tag, which is used for solving the technical problems of high cost or low precision of indoor positioning in the prior art. The system comprises:
a server and a positioning device for any of the above electronic price tags, wherein,
and the controller reports the position information of each electronic price tag fixed on the fixing device to the server.
The embodiment of the invention also provides a positioning method of the electronic price tag, which aims to solve the technical problems of high cost or low precision of indoor positioning in the prior art. The method comprises the following steps:
recording a one-to-one correspondence relationship between resistors on a resistor band and contact positions on a fixing device, and recording a relative position of each resistor on the fixing device, wherein the fixing device is provided with a plurality of contact positions, an electronic price tag is fixed at each contact position, the electronic price tag fixed at each contact position is communicated with a controller through a communication cable, the resistor band comprises a plurality of resistors which are equivalent and connected in series, the corresponding resistors and the contact positions are the same on the fixing device, the electronic price tag fixed at each contact position is connected with the corresponding resistor of the contact position, and a voltage value of the resistor corresponding to the contact position is obtained;
and receiving information sent by the electronic price tags fixed at the positions of the contacts through the communication cable by the controller, determining the resistor to which the voltage value belongs according to the voltage value in the information, and positioning the electronic price tag for sending the information according to the relative position corresponding to the determined resistor.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program for executing any positioning method for an electronic price tag is stored in the computer-readable storage medium, so as to solve the technical problem in the prior art that indoor positioning is high in cost or low in accuracy.
In the embodiment of the invention, a plurality of contact positions are arranged on a fixing device to fix an electronic price tag, a resistance band is arranged, the resistance band comprises a plurality of resistors which are equal in value and connected in series, each resistor corresponds to one relative position on the fixing device, the resistors correspond to the contact positions one by one, the corresponding resistors are the same as the positions of the contact positions on the fixing device, the electronic price tag fixed at each contact position is connected with the resistor corresponding to the contact position to obtain the voltage value of the resistor corresponding to the contact position, the electronic price tag fixed at each contact position is communicated with a controller through a communication cable, the controller receives information sent by the electronic price tag fixed at each contact position, the resistor to which the voltage value belongs can be determined according to the voltage value in the received information, and the information sent by the electronic price tag at the contact position corresponding to which resistor can be determined, and then the position of the electronic price tag for sending the information can be positioned according to the relative position corresponding to the determined resistance, so that the position of the electronic price tag for sending the information on the fixing device is obtained. Realized fixing a position the position of electron price tag on fixing device through the mode of line communication combination resistance partial pressure value, because line communication interference killing feature is strong, easily construction, and the voltage on the resistance area also possesses strong interference killing feature, the good characteristic of stability, make with WiFi among the prior art, BLE, UWB, RFID, infrared ray indoor location technique etc. compare, this application can avoid noise signal interference, the construction is complicated, stability is not good and with high costs the problem, possess and be favorable to reduce cost, improve positioning accuracy, improve the interference killing feature, easily advantages such as construction implementation.
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 block diagram of a positioning device for an electronic price tag according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fastening device according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a positioning device for an electronic price tag according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating an operation of a positioning apparatus for an electronic price tag according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for locating an electronic price tag according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and 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.
In an embodiment of the present invention, there is provided a positioning device for an electronic price tag, as shown in fig. 1, the device including:
the fixing device 102 is used for fixing an electronic price tag, wherein a plurality of contact positions are arranged on the fixing device, the electronic price tag is fixed at each contact position, and the electronic price tag fixed at each contact position is communicated with the controller through a communication cable;
a resistance band 1021, which is arranged in the fixing device, and includes a plurality of resistances that are equivalent and connected in series, each resistance corresponds to a relative position on the fixing device, the resistances correspond to contact positions one by one, the mutually corresponding resistances are the same as the positions of the contact positions on the fixing device, the electronic price tag fixed at each contact position is connected with the resistance corresponding to the contact position, and the voltage value of the resistance corresponding to the contact position is obtained;
the controller 104 receives information sent by the electronic price tags fixed at the positions of the contacts through the communication cable, determines the resistor to which the voltage value belongs according to the voltage value in the information, and positions the electronic price tag sending the information according to the relative position corresponding to the determined resistor.
As shown in fig. 1, in the embodiment of the present invention, a plurality of contact positions are provided on a fixing device to fix an electronic price tag, a resistance band is provided, the resistance band includes a plurality of resistors which are equal in value and connected in series, each resistor corresponds to a relative position on the fixing device, the resistors correspond to the contact positions one by one, the corresponding resistors are the same as the contact positions on the fixing device, the electronic price tag fixed at each contact position is connected to the resistor corresponding to the contact position to obtain a voltage value of the resistor corresponding to the contact position, the electronic price tag fixed at each contact position communicates with a controller through a communication cable, the controller receives information sent by the electronic price tag fixed at each contact position, the resistor to which the voltage value belongs can be determined according to the voltage value in the received information, that is the information sent by the electronic price tag at the contact position corresponding to which resistor corresponds can be determined, and then the position of the electronic price tag for sending the information can be positioned according to the relative position corresponding to the determined resistance, so that the position of the electronic price tag for sending the information on the fixing device is obtained. Realized fixing a position the position of electron price tag on fixing device through the mode of line communication combination resistance partial pressure value, because line communication interference killing feature is strong, easily construction, and the voltage on the resistance area also possesses strong interference killing feature, the good characteristic of stability, make with WiFi among the prior art, BLE, UWB, RFID, infrared ray indoor location technique etc. compare, this application can avoid noise signal interference, the construction is complicated, stability is not good and with high costs the problem, possess and be favorable to reduce cost, improve positioning accuracy, improve the interference killing feature, easily advantages such as construction implementation.
When the electronic price tag is specifically implemented, the specific structural form of the fixing device is not limited, and only a plurality of contact positions can be set to fix the electronic price tag, namely one contact position is a certain position point on the fixing device. For example, as shown in fig. 2, the securing device may be in the form of an extruded strip that may have a plurality of contact locations disposed thereon, each of which communicates with the controller via a communication cable.
In an implementation, the controller 104 may be any chip or processor with data processing capability.
In a specific implementation, the controller 104 may be disposed inside the fixing device 102, or may be disposed outside the fixing device 102.
During concrete implementation, this application fixes a position the electron price tag through the mode of line communication combination resistance partial pressure value, because voltage on line communication and the resistance band is all strong, stability is strong relatively for the precision that can improve the location relatively, in order to further improve the precision of location, in this embodiment, can fix a position the electron price tag through following mode:
the controller 104 is specifically configured to, when the resistors on the resistance band are arranged at equal intervals and the relative position corresponding to each resistor is the interval between two adjacent resistors, determine, according to the voltage value in the information, the serial number of the resistor to which the voltage value belongs on the resistance band, multiply the serial number of the determined resistor on the resistance band by the interval between two adjacent resistors, and use the product as the position of the electronic price tag for sending the information; or when the relative position corresponding to each resistor is the specific position of the resistor on the fixing device, taking the determined relative position corresponding to the resistor as the position of the electronic price tag for sending the information.
Specifically, because the resistance on the resistance area is equivalent resistance and series connection, can determine which resistance this voltage value belongs to according to the voltage value in the information, determine the serial number of resistance on the resistance area promptly resistance equidistant when setting up in the resistance on the resistance area, as long as know the interval of two adjacent resistances, can determine the position on fixing device of the electronic price tag of sending information. For example, the contact positions on the fixing device and the resistors on the resistor strip are numbered in a certain order (for example, from the grounding point of the resistor strip to the power supply, from the left end to the right end of the fixing device or from the right end to the left end), the serial numbers of the contact positions and the resistors are sequentially 1, 2 and 3 … … N, the resistors are arranged at equal intervals, the relative position corresponding to each resistor is the interval between two adjacent resistors, the resistance value is known, when the controller receives the information transmitted by the electronic price tag fixed at a certain contact position, the serial number of the resistor to which the voltage value belongs can be calculated according to the voltage value in the information, for example, the serial number of the resistor to which the voltage value belongs is determined to be 3, and the result of multiplying the 3 by the M is used as the position of the electronic price tag for transmitting the information on the fixing device.
Specifically, when the relative position corresponding to each resistor is the specific position of the resistor on the fixing device, that is, the relative position of each resistor is the specific position value of the resistor on the fixing device, for example, the relative position corresponding to the determined resistor at S meters starting from a certain end on the fixing device may be directly used as the position of the electronic price tag for sending information on the fixing device.
In specific implementation, in order to realize that the electronic price tags at the contact positions are convenient to insert and extract and realize cable communication, in this embodiment, each contact position is provided with a first metal contact and a second metal contact, the electronic price tags fixed at each contact position are respectively connected with the first metal contact and the second metal contact, the first metal contact at each contact position is connected with the communication cable, and the second metal contact at each contact position is connected with the resistor on the resistance band.
In specific implementation, in order to implement that the electronic price tag at each contact position shares the ground with the controller, in this embodiment, the method further includes: a common ground cable, the third metal contact of each contact location connected to the common ground cable, the electronic price tag affixed at each contact location connected to the third metal contact, the common ground cable connected to the controller.
For example, as shown in fig. 3, ESL1, ESL2, and ESL3 respectively represent three electronic price tags fixed at three contact positions on the fixing device, that is, an electronic price tag 1, an electronic price tag 2, and an electronic price tag 3, and the Master represents a controller, the electronic price tag at each contact position is connected with the controller through a first metal contact by using a communication cable a, the electronic price tag at each contact position is connected with a corresponding resistor on the resistance band C through a second metal contact, the voltage value of the resistor is collected through connection between the second metal contact and the resistor through an AD line, and the electronic price tag at each contact position is connected with the controller through a third metal contact to a common ground cable B.
In a specific implementation, the resistance band may be a circuit in which a plurality of equal-value resistors are connected in series between a power supply and ground, and the number of the resistors may be one more than the number of the contact positions.
In a specific implementation, in order to determine which electronic price tag is located, in this embodiment, the information sent by the electronic price tag may include a unique identifier of the electronic price tag, for example, an ID of the electronic price tag. After the electronic price tag sends information to the controller, the controller can determine which electronic price tag sends the information according to the unique identifier in the information, the controller can also determine the serial number of the resistor according to the voltage value in the information, and then position the electronic price tag sending the information according to the relative position corresponding to the determined resistor, and finally, the relation between the unique identifier and the position of the electronic price tag can be determined, namely, which electronic price tag is located at what position of the fixing device.
In a specific implementation, the electronic price tags and the controller can communicate through one-wire communication protocol, and the electronic price tags on a plurality of fixed devices can communicate through one router within a certain area.
In a specific implementation, as shown in fig. 4, the operation process of the positioning device for an electronic price tag may include the following steps:
the electronic price tags and controller devices of each fixture under the same AP (router) are kept clock synchronized by the wireless communication system while waking up. When the electronic price tag is awakened, the electronic price tag collects the voltage value of the resistor corresponding to the position of the contact where the electronic price tag is located, the address is allocated to the electronic price tag through a preset threshold value, and after the controller is awakened, the controller starts to send an electronic price tag information inquiry command from the 0 address through a communication bus so as to inquire equipment information on the N addresses.
When the address received by the electronic price tag is in accordance with the information query request of the address of the electronic price tag, the electronic price tag responds to the information (information comprises an ID serial number, a voltage value and the like) of the controller through a communication bus, and when the address received by the electronic price tag is not in accordance with the address of the electronic price tag, the electronic price tag does not respond to the request; the controller judges whether the electronic price tag responds, and if so, the controller records the address of the electronic price tag and the equipment information; if not, the controller judges whether the address traversal is completed, if so, the controller sends the equipment information to the server, otherwise, the address is increased progressively, and the equipment information on the next address is continuously inquired.
In specific implementation, in this embodiment, a system for positioning an electronic price tag is further provided, where the system includes: a server and a positioning device for any of the above electronic price tags, wherein,
and the controller reports the position information of each electronic price tag fixed on the fixing device to the server. The controller may also receive positioning scheduling information sent by the server.
Based on the same inventive concept, the embodiment of the present invention further provides a method for positioning an electronic price tag, as described in the following embodiments. Because the principle of solving the problems of the positioning method of the electronic price tag is similar to that of the positioning device of the electronic price tag, the implementation of the positioning method of the electronic price tag can refer to the implementation of the positioning device of the electronic price tag, and repeated parts are not described again.
Fig. 5 is a flowchart of a method for locating an electronic price tag according to an embodiment of the present invention, as shown in fig. 5, the method includes:
step 502: recording a one-to-one correspondence relationship between resistors on a resistor band and contact positions on a fixing device, and recording a relative position of each resistor on the fixing device, wherein the fixing device is provided with a plurality of contact positions, an electronic price tag is fixed at each contact position, the electronic price tag fixed at each contact position is communicated with a controller through a communication cable, the resistor band comprises a plurality of resistors which are equivalent and connected in series, the corresponding resistors and the contact positions are the same on the fixing device, the electronic price tag fixed at each contact position is connected with the corresponding resistor of the contact position, and a voltage value of the resistor corresponding to the contact position is obtained;
step 504: and receiving information sent by the electronic price tags fixed at the positions of the contacts through the communication cable by the controller, determining the resistor to which the voltage value belongs according to the voltage value in the information, and positioning the electronic price tag for sending the information according to the relative position corresponding to the determined resistor.
In one embodiment, determining a resistor to which the voltage value belongs according to the voltage value in the information, and positioning an electronic price tag for sending the information according to the determined relative position corresponding to the resistor, wherein the electronic price tag comprises;
when the resistors on the resistance band are arranged at equal intervals and the corresponding relative position of each resistor is the interval between two adjacent resistors, determining the serial number of the resistor to which the voltage value belongs on the resistance band according to the voltage value in the information, multiplying the determined serial number of the resistor on the resistance band by the interval between two adjacent resistors, and taking the product as the position of the electronic price tag for sending the information; or when the relative position corresponding to each resistor is the specific position of the resistor on the fixing device, taking the determined relative position corresponding to the resistor as the position of the electronic price tag for sending the information.
In one embodiment, a first metal contact and a second metal contact are provided at each contact location, the electronic price tag fixed at each contact location being connected to the first metal contact and the second metal contact, respectively, the first metal contact at each contact location being connected to the communication cable, and the second metal contact at each contact location being connected to the resistor on the resistor strip.
In one embodiment, the third metal contact of each contact location is connected to a common ground cable, and the electronic price tag affixed at each contact location is connected to the third metal contact, connecting the common ground cable to the controller.
In one embodiment, the information transmitted by the electronic price tag includes a unique identification of the electronic price tag.
In the present embodiment, a computer-readable storage medium is provided, which stores a computer program for executing any of the above-described methods for locating an electronic price tag.
In particular, computer-readable storage media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer-readable storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable storage medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
The embodiment of the invention realizes the following technical effects: the method comprises the steps that a plurality of contact positions are arranged on a fixing device to fix an electronic price tag, a resistance band is arranged, the resistance band comprises a plurality of resistors which are equivalent and connected in series, each resistor corresponds to one relative position on the fixing device, the resistors correspond to the contact positions one by one, the corresponding resistors are the same as the positions of the contact positions on the fixing device, the electronic price tag fixed at each contact position is connected with the resistor corresponding to the contact position to obtain the voltage value of the resistor corresponding to the contact position, the electronic price tag fixed at each contact position is communicated with a controller through a communication cable, the controller receives information sent by the electronic price tag fixed at each contact position, the resistor to which the voltage value belongs can be determined according to the voltage value in the received information, and the information sent by the electronic price tag at the contact position corresponding to which resistor can be determined, and then the position of the electronic price tag for sending the information can be positioned according to the relative position corresponding to the determined resistance, so that the position of the electronic price tag for sending the information on the fixing device is obtained. Realized fixing a position the position of electron price tag on fixing device through the mode of line communication combination resistance partial pressure value, because line communication interference killing feature is strong, easily construction, and the voltage on the resistance area also possesses strong interference killing feature, the good characteristic of stability, make with WiFi among the prior art, BLE, UWB, RFID, infrared ray indoor location technique etc. compare, this application can avoid noise signal interference, the construction is complicated, stability is not good and with high costs the problem, possess and be favorable to reduce cost, improve positioning accuracy, improve the interference killing feature, easily advantages such as construction implementation.
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 on 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 they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into 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 (12)
1. An electronic price tag positioning device, comprising:
the fixing device is used for fixing the electronic price tag, a plurality of contact positions are arranged on the fixing device, the electronic price tag is fixed at each contact position, and the electronic price tag fixed at each contact position is communicated with the controller through a communication cable;
the resistance band is arranged in the fixing device and comprises a plurality of resistors which are equivalent and connected in series, each resistor corresponds to a relative position on the fixing device, the resistors correspond to the contact positions one by one, the mutually corresponding resistors are the same as the positions of the contact positions on the fixing device, the electronic price tag fixed at each contact position is connected with the resistor corresponding to the contact position, and the voltage value of the resistor corresponding to the contact position is obtained;
the controller receives information sent by the electronic price tags fixed at the positions of the contacts through the communication cable, determines the resistor to which the voltage value belongs according to the voltage value in the information, and positions and sends the electronic price tags of the information according to the relative position corresponding to the determined resistor.
2. The apparatus according to claim 1, wherein the controller is specifically configured to, when the resistors on the resistance band are arranged at equal intervals and the relative position corresponding to each resistor is the interval between two adjacent resistors, determine, according to the voltage value in the information, the serial number of the resistor to which the voltage value belongs on the resistance band, multiply the serial number of the determined resistor on the resistance band by the interval between two adjacent resistors, and use the product as the position of the electronic price tag for sending the information; or when the relative position corresponding to each resistor is the specific position of the resistor on the fixing device, taking the determined relative position corresponding to the resistor as the position of the electronic price tag for sending the information.
3. The device of claim 1, wherein a first metal contact and a second metal contact are provided at each contact location, the electronic price tag secured at each contact location being connected to the first metal contact and the second metal contact, respectively, the first metal contact at each contact location being connected to the communication cable, and the second metal contact at each contact location being connected to the resistor on the resistor strip.
4. The electronic price tag locating device of claim 1,
a common ground cable, the third metal contact of each contact location connected to the common ground cable, the electronic price tag affixed at each contact location connected to the third metal contact, the common ground cable connected to the controller.
5. The apparatus according to any of claims 1 to 4, wherein the information transmitted by the electronic price tag comprises a unique identifier of the electronic price tag.
6. A system for locating an electronic price tag, comprising: a server and a positioning device of an electronic price tag according to any of claims 1 to 5,
and the controller reports the position information of each electronic price tag fixed on the fixing device to the server.
7. A method for locating an electronic price tag, comprising:
recording a one-to-one correspondence relationship between resistors on a resistor band and contact positions on a fixing device, and recording a relative position of each resistor on the fixing device, wherein the fixing device is provided with a plurality of contact positions, an electronic price tag is fixed at each contact position, the electronic price tag fixed at each contact position is communicated with a controller through a communication cable, the resistor band comprises a plurality of resistors which are equivalent and connected in series, the corresponding resistors and the contact positions are the same on the fixing device, the electronic price tag fixed at each contact position is connected with the corresponding resistor of the contact position, and a voltage value of the resistor corresponding to the contact position is obtained;
and receiving information sent by the electronic price tags fixed at the positions of the contacts through the communication cable by the controller, determining the resistor to which the voltage value belongs according to the voltage value in the information, and positioning the electronic price tag for sending the information according to the relative position corresponding to the determined resistor.
8. The method for positioning an electronic price tag according to claim 7, wherein the method comprises the steps of determining a resistor to which a voltage value belongs according to the voltage value in the information, and positioning the electronic price tag for transmitting the information according to the determined relative position corresponding to the resistor;
when the resistors on the resistance band are arranged at equal intervals and the corresponding relative position of each resistor is the interval between two adjacent resistors, determining the serial number of the resistor to which the voltage value belongs on the resistance band according to the voltage value in the information, multiplying the determined serial number of the resistor on the resistance band by the interval between two adjacent resistors, and taking the product as the position of the electronic price tag for sending the information; or when the relative position corresponding to each resistor is the specific position of the resistor on the fixing device, taking the determined relative position corresponding to the resistor as the position of the electronic price tag for sending the information.
9. The method of claim 7, wherein a first metal contact and a second metal contact are provided at each contact location, the electronic price tag secured at each contact location being connected to the first metal contact and the second metal contact, respectively, the first metal contact at each contact location being connected to the communication cable, and the second metal contact at each contact location being connected to the resistor on the resistor strip.
10. The method of claim 7, wherein the third metal contact of each contact location is connected to a common ground cable, the electronic price tag secured at each contact location being connected to the third metal contact, connecting the common ground cable to the controller.
11. The method of positioning an electronic price tag according to any of claims 7 to 10, wherein the information transmitted by the electronic price tag comprises a unique identification of the electronic price tag.
12. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of positioning an electronic price tag according to any of claims 7 to 11.
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| CN114004241A (en) * | 2021-09-23 | 2022-02-01 | 盒马(中国)有限公司 | Position identification method and device |
| CN114492712A (en) * | 2022-01-27 | 2022-05-13 | 阿里巴巴（中国）有限公司 | Electronic price tag system, guide rail and electronic price tag |
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| CN113301644B (en) | 2023-02-24 |
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