CN111245496A - Energy-saving communication system and algorithm for electronic tag network signals - Google Patents
Energy-saving communication system and algorithm for electronic tag network signals Download PDFInfo
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- 238000004891 communication Methods 0.000 title claims abstract description 115
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 9
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- 238000012545 processing Methods 0.000 claims description 27
- 238000012986 modification Methods 0.000 claims description 7
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- 230000006855 networking Effects 0.000 claims description 7
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- 230000000737 periodic effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
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- 238000006243 chemical reaction Methods 0.000 claims description 3
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- 230000003203 everyday effect Effects 0.000 claims description 3
- 230000001915 proofreading effect Effects 0.000 claims description 3
- 230000001934 delay Effects 0.000 description 5
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
- G06K19/0702—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery
- G06K19/0706—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management the arrangement including a battery the battery being replaceable
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07701—Constructional details, e.g. mounting of circuits in the carrier the record carrier comprising an interface suitable for human interaction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
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- 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
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Abstract
An energy-saving communication system and an algorithm for electronic tag network signals are used in a supermarket wireless tag system based on a Memory liquid crystal display (Memory LCD), and firstly, energy is saved on electronic tag display; secondly, reasonably using active energy; thirdly, improving the effective data proportion on the communication protocol; fourthly, the amount of the transmitted data of the electronic tag is reduced. The energy-saving problem of the electronic tag is effectively improved, and the reliability of the system is also improved.
Description
Technical Field
The invention relates to the field of supermarket management, in particular to an energy-saving communication system and an algorithm for electronic tag network signals.
Background
In the supermarket, a label is arranged near each article to be sold and used for telling customers information of the article, such as name, price, production place, production date, expiration date, discount and the like, so that the supermarket has a good prompting function. At present, the labels are all made of paper and are filled manually, so that the defects of management are caused, in a large supermarket, many tens of thousands of commodities are counted, and errors often occur during activities or large-scale data updating, and the errors cause that customers mistakenly think that the supermarket intentionally cheats due to the fact that the personnel are dare to take responsibility when the personnel cannot obtain accurate information, so that disputes are caused, and the enterprise image is influenced.
Therefore, the scheme of the electronic tag designed by adopting the wireless network is provided, the electronic tag is made into a network which can be automatically, semi-automatically and manually operated on a terminal server by adopting equipment such as a single chip microcomputer, the wireless network, a liquid crystal screen and the like and can modify electronic tag information through wireless network communication, and the system operated by a computer can effectively reduce the misoperation, increase working traces and realize historical data backtracking.
However, in the existing related schemes and products, batteries are used for power supply, and due to the energy requirements of display and communication, the common button battery can only be maintained for 1-2 months, which is far from the satisfied requirement. Therefore, in the problem of the electronic tag designed in the wireless network, the energy saving problem under the premise of ensuring the stability is studied, and a very important direction is formed.
Disclosure of Invention
The invention provides an energy-saving communication system for electronic tag network signals according to the existing electronic technology, communication technology and intelligent technology, and achieves the aims of electronic tag energy conservation and system stability.
An energy-saving communication system for electronic tag network signals comprises a server, an alarm device, a wireless communication network, an active relay, an electronic tag and a writer;
the server communicates with an active relay through a wireless communication network, and the active relay communicates with the electronic tag through the wireless communication network; the system is provided with a plurality of active relays, and each active relay corresponds to a plurality of electronic tags;
the alarm device is matched with the server and sends network fault information to a server user;
the programming device is matched with the active relay and the electronic tag and used for setting the addresses of the active relay and the electronic tag.
Further, the server displays the collected states of the electronic tags, meanwhile, a worker runs the setting software in the server, sends related setting information to the active relays through the wireless communication network, and then each active relay sends the related information to the electronic tags in the range of the active relay.
Further, the wireless communication network sends the setting information sent from the server to each active relay, then the active relays send the data to each electronic tag, and meanwhile, the related information is returned from the electronic tags and sent to the server through the active relays.
Furthermore, the active relay provides a working power supply by using an active socket of a supermarket, and the active relay structurally comprises a central processing unit, a communication circuit, a display circuit, a power converter, a battery and a microchip device, wherein the central processing unit is respectively connected with the display circuit, the communication circuit and the microchip device.
Furthermore, the central processing unit is used for processing information from and to the communication circuit, counting the response condition of data, sending information to be displayed to the electronic tag, and detecting the code set by the programming device in the IC chip; the communication circuit is used for receiving data sent by a wireless communication network and sending self data to the server; the display circuit is used for displaying the working condition of the electronic tag in communication connection in the active relay range, and the display circuit based on a memory liquid crystal screen is adopted; the power converter converts 220V alternating current into power for active relay use; the battery is used for providing an emergency power supply for the active relay to work when the power converter cannot work normally; the microchip device is used for setting an address for the electronic tag through the programming device.
Furthermore, the electronic tag receives the setting information of the server and displays the setting information to a customer, and the electronic tag structurally comprises a central processing unit, a communication circuit, a display circuit, a battery detection chip and a microchip device, wherein the central processing unit is respectively connected with the communication circuit, the display circuit, the battery and the microchip device.
Furthermore, the central processing unit is used for processing information from and to the communication circuit, sending information to be displayed to the display circuit, detecting codes set by a writer in the IC chip, and detecting the voltage of the battery by using a voltage measuring device carried by the IC chip; the communication circuit is used for receiving data sent by a communication network and sending self data to the server; the display circuit is used for displaying data to be displayed and sent by a communication network, and adopts a display circuit based on a memory liquid crystal screen; the battery is used for providing a working power supply for the electronic tag and adopts a button battery; the battery detection chip is used for detecting the residual capacity of the battery and reporting the residual capacity to the central processing unit; the microchip device is used for setting an address for the electronic tag through the programming device.
An energy-saving communication algorithm for electronic tag network signals comprises two parts, namely networking and communication protocols;
the networking steps are as follows:
step 1, randomly setting the address of the electronic tag to be used, wherein the address is required to be different;
step 2, installing each electronic tag at the corresponding shelf position, and turning on the power supply of the electronic tag; placing a plurality of active relays at proper positions with power supplies, and opening the active relays;
step 3, the active relay inquires the addresses of the electronic tags in the range area of the active relay, the active relay mutually expands communication, then the response packet loss rate, the response delay and the active relay automatic distribution quantity are counted, the active relay distribution quantity is the quantity of the electronic tags which can only be connected with one active relay, and the electronic tags are automatically distributed to the active relay; if one electronic tag can be connected with a plurality of active relays, the electronic tag is automatically allocated to the range in charge of each active relay according to the principles of low response packet loss rate, short response delay and average allocation quantity of the active relays;
step 4, after the working range is preliminarily distributed, all active relays send the addresses of the electronic tags in the range to the server, and the server checks whether the electronic tags are missed; if the omission occurs, the alarm device gives an alarm to ask people to check whether the electronic tag needs to be updated or an active relay is added; if no omission exists, the addresses of all the active relays and the electronic tags are numbered for the second time, and the number is a software number at the moment and is not required to be programmed by a programming device;
in the communication protocol, a response type communication mode is adopted, and the mode is divided into periodic data work, command data work and emergency data work according to different task properties.
Further, in step 4, the software numbering method includes the following steps:
step 4.1, recoding all active relays, wherein 0X00 is a server B0, the number of the active relays B1 is counted from 0X01, the usage amount of all active relays in the actual supermarket is coded, and the number of the active relays is one byte;
step 4.2, renumbering the electronic tags in the range in charge of each active relay, wherein the number of each electronic tag does not exceed two bytes, namely the number is A0-A65535;
step 4.3, the address of each electronic tag is rearranged into: and the corresponding relation between the new number and the original number written on the electronic tag is stored in the server for query and conversion.
Further, the periodic data work is performed, the time is aligned once every day in each abnormal working time, and then the electronic tag sends related electric quantity data in the subsequent authorized time; specifically, the server sends a proofreading task once, starting from an active relay B1 of 0X01 to the end, and sends time alignment and response once; the content is that a broadcast with time correction is sent once; then only one active relay Bn is provided at the same time, and the communication permission of the address BnAN permission answer with the electronic tag is sent one by one, and the electronic tag BnAN in the range of the active relay does not have the address when returning data after receiving the communication permission of the address BnAN permission answer consistent with the electronic tag; the returned data only has the percentage information of energy and is sent in a one-byte mode;
the command data work is that the server sends related changed information to the active relay, the active relay Bn containing the electronic tag BnAN needing to modify the content sends an authorized command of the electronic tag BnAN allowing communication to the electronic tag BnAN, and then the content needing to be modified is sent to the electronic tag BnAN; if the electronic tag BnAN sends 0XFF to the active relay Bn after the data content is corrected correctly, the communication and modification are successful; if the electronic tag BnAN confirms that the data content is corrected incorrectly, sending 0XFE to the active relay Bn, wherein the communication and the modification are unsuccessful, then the active relay Bn continuously resends the content, and counting the failure times, and if the continuous failure times are more than 3, sending an alarm by a server;
the emergency data work is that when the energy of the electronic tag is lower than 10%, the electronic tag directly sends out an energy alarm without authorization, and when the electronic tag gives an alarm, the electronic tag directly sends an address and a command word: the number of the active relay B + the number of the electronic tag A +0X55, wherein 0X55 is a command word for energy termination; any active relay that receives the information will send: the active relay B number + electronic tag A number +0X66, wherein 0X66 is a command word which is received after energy is ended, the electronic tag is given as a response to stop alarming, and then the active relay B number + electronic tag A number +0X55 is sent to the server to enable the server to receive the command word and send an alarm to a worker to prompt the worker to replace the battery.
The invention achieves the following beneficial effects: firstly, energy is saved on the electronic label display; secondly, reasonably using active energy; thirdly, improving the effective data proportion on the communication protocol; fourthly, the amount of the transmitted data of the electronic tag is reduced. The energy-saving problem of the electronic tag is effectively improved, and the reliability of the system is also improved.
Drawings
Fig. 1 is a schematic diagram of a two-layer network structure according to an embodiment of the present invention.
Fig. 2 is a schematic circuit structure diagram of an active relay according to an embodiment of the present invention.
Fig. 3 is a schematic circuit structure diagram of an electronic tag according to an embodiment of the present invention.
Fig. 4 is a networking flow chart according to an embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the drawings in the specification.
An energy-saving communication system for electronic tag network signals comprises a server, an alarm device, a wireless communication network, an active relay, an electronic tag and a writer.
The server communicates with an active relay through a wireless communication network, and the active relay communicates with the electronic tag through the wireless communication network; the system has a plurality of active relays, each active relay corresponding to a plurality of electronic tags.
The alarm device is matched with the server and used for sending network fault information to a server user, for example, the electronic tag is about to exhaust a power supply, the electronic tag cannot be connected, active relay faults, communication network faults and the like. The programming device is matched with the active relay and the electronic tag and used for setting the addresses of the active relay and the electronic tag.
The server displays the collected states of all the electronic tags, meanwhile, workers run setting software in the server, relevant setting information is sent to the active relays through a wireless communication network, and then all the active relays send the relevant information to the electronic tags in the range of the active relays.
The wireless communication network sends the setting information sent from the server to each active relay, then the active relays send the data to each electronic tag, and meanwhile, the related information is returned from the electronic tags and sent to the server through the active relays.
The active relay utilizes an active socket of a supermarket to provide a working power supply of the active relay, so that the energy of the electronic tag on the transmission distance is reduced as much as possible, the effective data proportion of the electronic tag on a communication protocol is reduced, and the data sending quantity of the electronic tag is reduced, thereby reducing the working energy consumption of the electronic tag. The active relay structure comprises a central processing unit, a communication circuit, a display circuit, a power converter, a battery and a microchip device, wherein the central processing unit is respectively connected with the display circuit, the communication circuit and the microchip device.
The central processing unit is used for processing information of communication circuits, counting response conditions of data, sending information to be displayed to the electronic tag, and detecting codes set by a programming device in the IC chip; the communication circuit is used for receiving data sent by a wireless communication network and sending self data to the server; the display circuit is used for displaying the working condition of the electronic tag in communication connection within the active relay range, and the display circuit based on the memory liquid crystal screen is adopted, so long as the screen content is not changed, the liquid crystal screen can maintain display on the basis of no waste of electric power, and the electric energy loss can be effectively saved. The power converter converts 220V alternating current into power for active relay use; the battery is used for providing an emergency power supply for the active relay to work when the power converter cannot work normally; the microchip device is used for setting an address for the electronic tag through the programming device.
The electronic tag receives the setting information of the server and displays the setting information to a customer, and structurally comprises a central processing unit, a communication circuit, a display circuit, a battery detection chip and a microchip device, wherein the central processing unit is respectively connected with the communication circuit, the display circuit, the battery and the microchip device.
The central processing unit is used for processing information from and to the communication circuit, sending information to be displayed to the display circuit, detecting codes set by a writer in the IC chip, and detecting the voltage of the battery by using a voltage measuring device carried by the IC chip; the communication circuit is used for receiving data sent by a communication network and sending self data to the server; the display circuit is used for displaying data to be displayed and sent by a communication network, and the display circuit based on the memory liquid crystal screen can maintain the display on the basis of no waste of electric power and effectively save electric energy loss as long as screen content is not changed. The battery is used for providing a working power supply for the electronic tag and adopts a button battery; the battery detection chip is used for detecting the residual capacity of the battery and reporting the residual capacity to the central processing unit; the microchip device is used for setting an address for the electronic tag through the programming device.
The energy-saving communication algorithm for the electronic tag network signals has the functions of realizing stable data communication and realizing the lowest energy when the electronic tag end works. The solution is that the effective data proportion is improved on the communication protocol; secondly, the sending data volume of the electronic tag is reduced; and thirdly, the network is only divided into an active communication layer and a passive communication layer. The active communication layer comprises a server and a plurality of active relays, and the passive communication layer only comprises an electronic tag. The active communication layer is in a chain structure, the server in the structure is a core, and the data sending or returning is finally directed to the server. The passive communication layer is a star-shaped structure surrounding one active relay, and the electronic tags in the area are all communicated with the active relay. The method comprises two parts of networking and communication protocols.
The networking steps are as follows:
step 1, randomly setting the address of the electronic tag to be used, and requiring different addresses.
Step 2, installing each electronic tag at the corresponding shelf position, and turning on the power supply of the electronic tag; and placing a plurality of active relays at proper positions with power supplies, and opening the active relays.
Step 3, the active relay inquires the addresses of the electronic tags in the range area of the active relay, carries out communication with each other, and then counts response packet loss rate, response delay and the number of active relay automatic distribution, wherein the number of active relay distribution is the number of the electronic tags which can only be connected with one active relay, and the electronic tags are automatically distributed to the active relay; if one electronic tag can be connected with a plurality of active relays, the electronic tag is automatically allocated to the range in charge of each active relay according to the principles of low response packet loss rate, short response delay and average allocation number of the active relays.
For example: an electronic tag a1 can be connected to the active relays B1, B2.
At this moment, the response packet loss rate is judged first, and if the response packet loss rates of a1 and B1 are lower than those of a1 and B2, a1 is allocated to the working range of B1.
If the response packet loss rates of a1 and B1 are higher than those of a1 and B2, then a1 is allocated to the operating range of B2.
If the response packet loss rates of A1 and B1 are equal to those of A1 and B2, the response delay is judged.
If the response delays at this point in time A1 and B1 are lower than the response delays of A1 and B2, then A1 is allocated to be within the operating range of B1.
If the response delays of a1 and B1 are higher than those of a1 and B2 at this time, then a1 is allocated to be within the operating range of B2.
If the acknowledgement delays of A1 and B1 are equal to the acknowledgement delays of A1 and B2, then the active relay allocation number is determined.
If the existing electronic tag distribution number in B1 is smaller than the existing electronic tag distribution number in B2 at this time, a1 is assigned to be within the operating range of B1.
If the existing electronic tag distribution number in B1 is greater than the existing electronic tag distribution number in B2 at the moment, then A1 is assigned to be within the operating range of B2.
If the assigned number of existing electronic tags in B1 at the moment is equal to the assigned number of existing electronic tags in B2, then A1 is randomly assigned to the operating range of B1 or B2.
Step 4, after the working range is preliminarily distributed, all active relays send the addresses of the electronic tags in the range to a server, and the server checks whether the electronic tags are left out; if the omission occurs, the alarm device gives an alarm to ask people to check whether the electronic tag needs to be updated or an active relay is added; and if the address is not missed, the addresses of all the active relays and the electronic tags are numbered for the second time, and the number is the software number at the moment and is not required to be programmed by a programming device. The purpose of the numbering is to reduce the numbering of all the electronic tags, so that the energy cost of communication is reduced; and secondly, the communication is convenient for question answering communication.
The software numbering method comprises the following steps:
and 4.1, recoding all active relays, wherein 0X00 is a server B0, the number of the active relays B1 is counted from 0X01, and the number of the active relays is one byte.
And 4.2, renumbering the electronic tags in the range in charge of each active relay, wherein the number of each electronic tag is not more than two bytes, namely the number is A0-A65535.
Step 4.3, the address of each electronic tag is rearranged into: and the corresponding relation between the new number and the original number written on the electronic tag is stored in the server for query and conversion.
In the communication protocol, a response type communication mode is adopted, and the mode is divided into periodic data work, command data work and emergency data work according to different task properties.
The periodic data work is performed, the time is aligned once every day in each abnormal working time, and then the electronic tag sends related electric quantity data in the subsequent authorized time; specifically, the server sends a proofreading task once, starting from an active relay B1 of 0X01 to the end, and sends time alignment and response once; the content is that a broadcast with time correction is sent once; then only one active relay Bn is provided at the same time, and the communication permission of the address BnAN permission answer with the electronic tag is sent one by one, and the electronic tag BnAN in the range of the active relay does not have the address when returning data after receiving the communication permission of the address BnAN permission answer consistent with the electronic tag; the returned data has only percentage information of energy and is sent in one byte, with a decimal 99, i.e. representing 99% more energy and a decimal 10, i.e. representing 10% more energy.
The command data work is that the server sends related changed information to the active relay, the active relay Bn containing the electronic tag BnAN needing to modify the content sends an authorized command of the electronic tag BnAN allowing communication to the electronic tag BnAN, and then the content needing to be modified is sent to the electronic tag BnAN; if the electronic tag BnAN sends 0XFF to the active relay Bn after the data content is corrected correctly, the communication and modification are successful; if the electronic tag BnAN sends 0XFE to the active relay Bn after confirming that the data content is corrected incorrectly, the communication and the modification are unsuccessful, then the active relay Bn continues to resend the content, the failure times are counted, and if the continuous failure times are more than 3, the server sends an alarm.
The emergency data work is that when the energy of the electronic tag is lower than 10%, the electronic tag directly sends out an energy alarm without authorization, and when the electronic tag gives an alarm, the electronic tag directly sends an address and a command word: the number of the active relay B + the number of the electronic tag A +0X55, wherein 0X55 is a command word for energy termination; any active relay that receives the information will send: the active relay B number + electronic tag A number +0X66, wherein 0X66 is a command word which is received after energy is ended, the electronic tag is given as a response to stop alarming, and then the active relay B number + electronic tag A number +0X55 is sent to the server to enable the server to receive the command word and send an alarm to a worker to prompt the worker to replace the battery.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.
Claims (10)
1. An energy-saving communication system for electronic label network signals, characterized in that:
the system comprises a server, an alarm device, a wireless communication network, an active relay, an electronic tag and a programming device;
the server communicates with an active relay through a wireless communication network, and the active relay communicates with the electronic tag through the wireless communication network; the system is provided with a plurality of active relays, and each active relay corresponds to a plurality of electronic tags;
the alarm device is matched with the server and sends network fault information to a server user;
the programming device is matched with the active relay and the electronic tag and used for setting the addresses of the active relay and the electronic tag.
2. The system of claim 1, wherein the communication system comprises: the server displays the collected states of all the electronic tags, meanwhile, workers run setting software in the server, relevant setting information is sent to the active relays through a wireless communication network, and then all the active relays send the relevant information to the electronic tags in the range of the active relays.
3. The system of claim 1, wherein the communication system comprises: the wireless communication network sends the setting information sent from the server to each active relay, then the active relays send the data to each electronic tag, and meanwhile, the related information is returned from the electronic tags and sent to the server through the active relays.
4. The system of claim 1, wherein the communication system comprises: the active relay provides a working power supply by using an active socket of a supermarket, and structurally comprises a central processing unit, a communication circuit, a display circuit, a power converter, a battery and a microchip device, wherein the central processing unit is respectively connected with the display circuit, the communication circuit and the microchip device.
5. The system of claim 4, wherein the communication system comprises: the central processing unit is used for processing information of communication circuits, counting response conditions of data, sending information to be displayed to the electronic tag, and detecting codes set by a programming device in the IC chip; the communication circuit is used for receiving data sent by a wireless communication network and sending self data to the server; the display circuit is used for displaying the working condition of the electronic tag in communication connection in the active relay range, and the display circuit based on a memory liquid crystal screen is adopted; the power converter converts 220V alternating current into power for active relay use; the battery is used for providing an emergency power supply for the active relay to work when the power converter cannot work normally; the microchip device is used for setting an address for the electronic tag through the programming device.
6. The system of claim 1, wherein the communication system comprises: the electronic tag receives the setting information of the server and displays the setting information to a customer, and structurally comprises a central processing unit, a communication circuit, a display circuit, a battery detection chip and a microchip device, wherein the central processing unit is respectively connected with the communication circuit, the display circuit, the battery and the microchip device.
7. The system of claim 6, wherein the communication system comprises: the central processing unit is used for processing information from and to the communication circuit, sending information to be displayed to the display circuit, detecting codes set by a writer in the IC chip, and detecting the voltage of the battery by using a voltage measuring device carried by the IC chip; the communication circuit is used for receiving data sent by a communication network and sending self data to the server; the display circuit is used for displaying data to be displayed and sent by a communication network, and adopts a display circuit based on a memory liquid crystal screen; the battery is used for providing a working power supply for the electronic tag and adopts a button battery; the battery detection chip is used for detecting the residual capacity of the battery and reporting the residual capacity to the central processing unit; the microchip device is used for setting an address for the electronic tag through the programming device.
8. An energy-saving communication algorithm for electronic tag network signals is characterized in that:
the algorithm comprises two parts of networking and communication protocols;
the networking steps are as follows:
step 1, randomly setting the address of the electronic tag to be used, wherein the address is required to be different;
step 2, installing each electronic tag at the corresponding shelf position, and turning on the power supply of the electronic tag; placing a plurality of active relays at proper positions with power supplies, and opening the active relays;
step 3, the active relay inquires the addresses of the electronic tags in the range area of the active relay, the active relay mutually expands communication, then the response packet loss rate, the response delay and the active relay automatic distribution quantity are counted, the active relay distribution quantity is the quantity of the electronic tags which can only be connected with one active relay, and the electronic tags are automatically distributed to the active relay; if one electronic tag can be connected with a plurality of active relays, the electronic tag is automatically allocated to the range in charge of each active relay according to the principles of low response packet loss rate, short response delay and average allocation quantity of the active relays;
step 4, after the working range is preliminarily distributed, all active relays send the addresses of the electronic tags in the range to the server, and the server checks whether the electronic tags are missed; if the omission occurs, the alarm device gives an alarm to ask people to check whether the electronic tag needs to be updated or an active relay is added; if no omission exists, the addresses of all the active relays and the electronic tags are numbered for the second time, and the number is a software number at the moment and is not required to be programmed by a programming device;
in the communication protocol, a response type communication mode is adopted, and the mode is divided into periodic data work, command data work and emergency data work according to different task properties.
9. The power-saving communication algorithm for the electronic tag network signal according to claim 8, wherein: in step 4, the software numbering method comprises the following steps:
step 4.1, recoding all active relays, wherein 0X00 is a server B0, the number of the active relays B1 is counted from 0X01, the usage amount of all active relays in the actual supermarket is coded, and the number of the active relays is one byte;
step 4.2, renumbering the electronic tags in the range in charge of each active relay, wherein the number of each electronic tag does not exceed two bytes, namely the number is A0-A65535;
step 4.3, the address of each electronic tag is rearranged into: and the corresponding relation between the new number and the original number written on the electronic tag is stored in the server for query and conversion.
10. The power-saving communication algorithm for the electronic tag network signal according to claim 8, wherein: the periodic data work is performed, the time is aligned once every day in each abnormal working time, and then the electronic tag sends related electric quantity data in the subsequent authorized time; specifically, the server sends a proofreading task once, starting from an active relay B1 of 0X01 to the end, and sends time alignment and response once; the content is that a broadcast with time correction is sent once; then only one active relay Bn is provided at the same time, and the communication permission of the address BnAN permission answer with the electronic tag is sent one by one, and the electronic tag BnAN in the range of the active relay does not have the address when returning data after receiving the communication permission of the address BnAN permission answer consistent with the electronic tag; the returned data only has the percentage information of energy and is sent in a one-byte mode;
the command data work is that the server sends related changed information to the active relay, the active relay Bn containing the electronic tag BnAN needing to modify the content sends an authorized command of the electronic tag BnAN allowing communication to the electronic tag BnAN, and then the content needing to be modified is sent to the electronic tag BnAN; if the electronic tag BnAN sends 0XFF to the active relay Bn after the data content is corrected correctly, the communication and modification are successful; if the electronic tag BnAN confirms that the data content is corrected incorrectly, sending 0XFE to the active relay Bn, wherein the communication and the modification are unsuccessful, then the active relay Bn continuously resends the content, and counting the failure times, and if the continuous failure times are more than 3, sending an alarm by a server;
the emergency data work is that when the energy of the electronic tag is lower than 10%, the electronic tag directly sends out an energy alarm without authorization, and when the electronic tag gives an alarm, the electronic tag directly sends an address and a command word: the number of the active relay B + the number of the electronic tag A +0X55, wherein 0X55 is a command word for energy termination; any active relay that receives the information will send: the active relay B number + electronic tag A number +0X66, wherein 0X66 is a command word which is received after energy is ended, the electronic tag is given as a response to stop alarming, and then the active relay B number + electronic tag A number +0X55 is sent to the server to enable the server to receive the command word and send an alarm to a worker to prompt the worker to replace the battery.
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