CN112051974B - Electronic price tag information transmission method and system, electronic price tag and server - Google Patents

Electronic price tag information transmission method and system, electronic price tag and server Download PDF

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Publication number
CN112051974B
CN112051974B CN201910491439.1A CN201910491439A CN112051974B CN 112051974 B CN112051974 B CN 112051974B CN 201910491439 A CN201910491439 A CN 201910491439A CN 112051974 B CN112051974 B CN 112051974B
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China
Prior art keywords
price tag
electronic price
displayed
information
size
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CN112051974A (en
Inventor
侯世国
李良衍
冯运亮
高波
陈骏
姜起
申明
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Hanshuo Technology Co ltd
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Hanshuo Technology Co ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • G06F3/1462—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay with means for detecting differences between the image stored in the host and the images displayed on the remote displays

Abstract

The invention provides a method and a system for transmitting electronic price tag information, an electronic price tag and a server, wherein the method comprises the following steps: according to the size of the cache space of the electronic price tag, the size of information to be displayed of the electronic price tag is adjusted, at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time; and sequentially sending at least one information block to be displayed, which accords with the cache space size of the electronic price tag, to the electronic price tag. The invention can improve the communication efficiency.

Description

Electronic price tag information transmission method and system, electronic price tag and server
Technical Field
The invention relates to the field of electronic price tags, in particular to an electronic price tag information transmission method and system, an electronic price tag and a server.
Background
In order to improve the sales efficiency of supermarkets, various online and offline combined sales modes exist, and a paper price tag mode is replaced by an electronic price tag at present. The existing electronic price tag generally performs data transmission through wireless, wired, infrared and other communication modes, and the problem that how to improve the communication efficiency of the electronic price tag on the basis of utilizing the communication modes is a urgent need to be solved due to the huge number of price tags in a large supermarket.
Disclosure of Invention
The embodiment of the invention provides an electronic price tag information transmission method, which is used for transmitting electronic price tag information and has high communication efficiency, and comprises the following steps:
according to the size of the cache space of the electronic price tag, the size of information to be displayed of the electronic price tag is adjusted, at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time;
and sequentially sending at least one information block to be displayed, which accords with the cache space size of the electronic price tag, to the electronic price tag.
The embodiment of the invention also provides an electronic price tag information transmission method which is used for transmitting the electronic price tag information and has high communication efficiency, and the method comprises the following steps:
if at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is at least one compressed package of the picture to be displayed, each compressed package of the picture to be displayed is circularly executed until all the compressed packages of the picture to be displayed are received, wherein the at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the cache space size of the electronic price tag, and the information block to be displayed, which accords with the cache space size of the electronic price tag, is the information block to be displayed which can be transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
And decompressing at least one compressed packet of the picture to be displayed in the cache space of the electronic price tag to obtain the picture to be displayed.
The embodiment of the invention also provides a server for transmitting electronic price tag information, which has high communication efficiency and comprises:
the information processing module is used for adjusting the size of information to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag to obtain at least one information block to be displayed which accords with the size of the cache space of the electronic price tag, wherein the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag once;
and the information to be displayed sending module is used for sequentially sending at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, to the electronic price tag.
The embodiment of the invention also provides an electronic price tag for transmitting electronic price tag information, which has high communication efficiency, and the electronic price tag comprises:
the information receiving module to be displayed is used for:
if at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is at least one compressed package of the picture to be displayed, each compressed package of the picture to be displayed is circularly executed until all the compressed packages of the picture to be displayed are received, wherein the at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the cache space size of the electronic price tag, and the information block to be displayed, which accords with the cache space size of the electronic price tag, is the information block to be displayed which can be transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
The to-be-displayed picture obtaining module is used for decompressing at least one compressed package of the to-be-displayed picture in the cache space of the electronic price tag to obtain the to-be-displayed picture.
The embodiment of the invention also provides an electronic price tag information transmission system which comprises the server and the electronic price tag.
The embodiment of the invention also provides computer equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the electronic price tag information transmission method is realized when the processor executes the computer program.
The embodiment of the invention also provides a computer readable storage medium, which stores a computer program for executing the electronic price tag information transmission method.
In the embodiment of the invention, the size of information to be displayed of the electronic price tag is adjusted to obtain at least one information block to be displayed which accords with the size of the cache space of the electronic price tag, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time; the obtained information blocks to be displayed not only accord with the size of the cache space of the electronic price tag, but also have smaller space compared with the information blocks to be displayed before the size is adjusted, so that the communication efficiency is higher when at least one information block to be displayed accord with the size of the cache space of the electronic price tag is sequentially sent to the electronic price tag.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a flowchart of an electronic price tag information transmission method according to an embodiment of the present invention;
FIG. 2 is another flowchart of a method for transmitting electronic price tag information according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of a server according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an electronic price tag according to an embodiment of the present invention;
FIG. 5 is a detailed flowchart of electronic price tag information transmission according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an electronic price tag information transmission system according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present invention and their descriptions herein are for the purpose of explaining the present invention, but are not to be construed as limiting the invention.
Fig. 1 is a flowchart of a method for transmitting electronic price tag information according to an embodiment of the present invention, as shown in fig. 1, where the method includes:
step 101, according to the size of the cache space of the electronic price tag, the size of information to be displayed of the electronic price tag is adjusted, and at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, wherein the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time;
and step 102, sequentially transmitting at least one information block to be displayed, which accords with the buffer space size of the electronic price tag, to the electronic price tag.
In the embodiment of the invention, the size of information to be displayed of the electronic price tag is adjusted to obtain at least one information block to be displayed which accords with the size of the cache space of the electronic price tag, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time; the obtained information blocks to be displayed not only accord with the size of the cache space of the electronic price tag, but also have smaller space compared with the information blocks to be displayed before the size is adjusted, so that the communication efficiency is higher when at least one information block to be displayed accord with the size of the cache space of the electronic price tag is sequentially sent to the electronic price tag.
Before step 101, the size of the buffer space of the electronic price tag sent by the electronic price tag needs to be received, and then the information to be displayed of the electronic price tag needs to be obtained, where the information to be displayed of the electronic price tag includes a series of data such as commodity price, place of production, brand, and the like, which are not listed one by one. The size of the information to be displayed varies greatly, possibly from several thousands of bytes to several tens of thousands of bytes, due to the different sizes of the screens of the electronic price tags. The storage space of the MCU (Micro Control Unit ) inside the electronic price tag is limited, and the storage space corresponding to different MCUs is different. In order to adapt to different storage spaces of more MCUs as much as possible and information to be displayed with different sizes, the electronic price tag can send the heartbeat data to the space size which can be used for data caching in the memory space. Then, in step 101, the size of the information to be displayed of the electronic price tag is adjusted according to the size of the buffer space of the electronic price tag, so as to obtain at least one information block to be displayed according to the size of the buffer space of the electronic price tag, wherein the information block to be displayed according to the size of the buffer space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time, and finally the obtained information block to be displayed not only conforms to the size of the buffer space of the electronic price tag, but also has smaller space required by the information block to be displayed compared with the information block to be displayed before the size is adjusted, therefore, in step 102, the at least one information block to be displayed according to the size of the buffer space of the electronic price tag is sequentially transmitted to the electronic price tag, and the communication efficiency is higher. The information to be displayed, which accords with the size of the buffer space of the electronic price tag, comprises various forms, wherein the picture is a common form of information to be displayed, the information to be displayed of the electronic price tag is the picture to be displayed of the electronic price tag, the size of the picture to be displayed of the electronic price tag is adjusted, namely, the picture to be displayed is processed into a plurality of information blocks to be displayed, the size of each information block to be displayed is smaller than or equal to the size of the buffer space of the electronic price tag, and therefore, when the information blocks to be displayed are transmitted in sequence, the buffer space of the electronic price tag can receive each information block to be displayed successfully in sequence.
In specific implementation, there are various methods for adjusting the size of the information to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag, and obtaining at least one information block to be displayed which accords with the size of the cache space of the electronic price tag, and one embodiment is given below.
According to the size of the cache space of the electronic price tag, the size of the information to be displayed of the electronic price tag is adjusted, and at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, and the method comprises the following steps:
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag;
if the judgment result is that the segmented compression processing is needed, a plurality of compression packets of the information to be displayed, which accords with the cache space size of the electronic price tag, are obtained;
and if the judgment result is that the sectional compression processing is not needed, obtaining a compressed packet of the information to be displayed, which accords with the cache space size of the electronic price tag.
In the above embodiment, the situation that the buffer space of the electronic price tag is smaller than the information to be displayed of the electronic price tag is considered, for example, the electronic price tag has only 4kbytes of buffer space, and the size of the information to be displayed (for example, the picture to be displayed) has 10kbytes, that is, according to the size of the buffer space of the electronic price tag and the size of the information to be displayed of the electronic price tag, whether the information to be displayed of the electronic price tag needs to be subjected to the segmented compression processing is judged, when the buffer space of the electronic price tag is smaller than the information to be displayed of the electronic price tag, the judgment result is that the segmented compression processing needs to be performed, so that a plurality of compression packets of the information to be displayed, which accords with the buffer space size of the electronic price tag, are obtained, namely, the aforementioned block of the information to be displayed, which accords with the buffer space size of the electronic price tag is a plurality of compression packets of the information to be displayed, for example, the electronic price tag has only 4kbytes of buffer space, and when the size of the information to be displayed has 10kbytes, 3 compression packets of the information to accord with the buffer space size of the electronic price tag can be obtained.
When the cache space of the electronic price tag is not smaller than the information to be displayed of the electronic price tag, the judgment result is that the segmentation compression processing is not needed, and a compression packet of the information to be displayed, which accords with the cache space of the electronic price tag, is obtained.
By obtaining the above at least one compressed package, the space of the information to be displayed can be further reduced, and communication efficiency is provided when the information to be displayed of the electronic price tag is transmitted to the electronic price tag.
In an embodiment, before determining whether the to-be-displayed information of the electronic price tag needs to be subjected to the segment compression processing according to the size of the cache space of the electronic price tag and the size of the to-be-displayed information of the electronic price tag, the method further includes:
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, and if the judgment result is that the information to be displayed of the electronic price tag needs to be subjected to differential processing, carrying out differential processing on the information to be displayed of the electronic price tag;
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, wherein the method comprises the following steps:
and judging whether the information to be displayed of the electronic price tag subjected to the difference processing needs to be subjected to sectional compression processing according to the cache space size of the electronic price tag and the size of the information to be displayed of the electronic price tag subjected to the difference processing.
In the above embodiment, the situation that the stored information and the information to be displayed in the electronic price tag have a large amount of similar contents is considered, and if the stored information and the information to be displayed in the electronic price tag have a large amount of similar contents, the size of the information to be displayed in the electronic price tag can be further reduced by performing differential processing on the information to be displayed in the electronic price tag, so that the communication efficiency is further improved during transmission. And then judging whether the information to be displayed of the electronic price tag subjected to the difference processing needs to be subjected to the sectional compression processing according to the cache space size of the electronic price tag and the size of the information to be displayed of the electronic price tag subjected to the difference processing.
In an embodiment, determining whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, if the determination result is that the information to be displayed of the electronic price tag needs to be subjected to differential processing, the method includes:
obtaining a stored picture of the electronic price tag;
generating a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
judging whether differential processing is required to be carried out on the pictures to be displayed of the electronic price tag according to the keywords of the stored pictures of the electronic price tag and the keywords of the pictures to be displayed of the electronic price tag;
And if the judgment result is that the difference processing is needed, carrying out the difference processing on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag.
In the above embodiment, the stored picture of the electronic price tag may not be transmitted by the electronic price tag, and may be obtained by other means, for example, a server that performs the electronic price tag information transmission method and may be in communication with the electronic price tag, the server corresponds to a plurality of electronic price tags, receives the buffer space size of the electronic price tag transmitted by the electronic price tag, and transmits at least one to-be-displayed information block conforming to the buffer space size of the electronic price tag to the electronic price tag, and since the to-be-displayed information is transmitted to the electronic price tag by the server, the stored picture of the electronic price tag is recorded in the server.
In general, most of the pictures stored in the electronic price tag are pictures, so that the pictures to be displayed of the electronic price tag are generated according to the information to be displayed of the electronic price tag and sent to the electronic price tag, of course, it can be understood that the information to be displayed of the electronic price tag can also be in other forms, for example, a character string conforming to a set rule, the corresponding electronic price tag can be displayed according to the character string conforming to the set rule and a template of the electronic price tag, and related variation examples all fall into the protection scope of the invention.
In order to compare with the stored picture of the electronic price tag, a keyword of the picture to be displayed of the electronic price tag is generated according to the information to be displayed of the electronic price tag, then whether the picture to be displayed of the electronic price tag needs to be subjected to differential processing is judged according to the keyword of the stored picture of the electronic price tag and the keyword of the picture to be displayed of the electronic price tag, the keyword of the picture to be displayed and the keyword of the stored picture of the electronic price tag can be various, such as price, appearance and the like, if the keyword of the stored picture of the electronic price tag is consistent with the keyword of the picture to be displayed of the electronic price tag, differential processing is required to be performed on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag, namely, the corresponding pixel values of the two images are subtracted to weaken the similar part of the image, and the change part of the image is highlighted. The size of the picture to be displayed of the electronic price tag can be made as small as possible through differential processing, information of differences between the picture to be displayed of the electronic price tag and the stored picture of the electronic price tag can be sent to the electronic price tag only by carrying the information, the picture to be displayed of the electronic price tag can be obtained through reverse differential, and the size of the picture to be displayed of the electronic price tag is reduced, so that communication efficiency can be greatly improved. If the keywords of the stored pictures of the electronic price tag are inconsistent with the keywords of the pictures to be displayed of the electronic price tag, differential processing of the pictures to be displayed of the electronic price tag is not needed.
In particular, the electronic price tag can obtain at least one information block to be displayed, for example, a plurality of compressed packets of a picture to be displayed, by receiving the information to be displayed, and the server executing the electronic price tag information transmission method sends the display control information of the electronic price tag to the electronic price tag so as to control the picture to be displayed by the electronic price tag.
Thus, in one embodiment, the electronic price tag information transmission method further comprises: and sending the display control information of the electronic price tag to the electronic price tag.
In the above embodiment, the display control information of the electronic price tag may be an identification of a picture of the electronic price tag.
In the electronic price tag information transmission method provided by the embodiment of the invention, the size of the information to be displayed of the electronic price tag is adjusted according to the size of the cache space of the electronic price tag, the information block to be displayed which accords with the size of the cache space of the electronic price tag can be obtained, and the obtained information block to be displayed not only accords with the size of the cache space of the electronic price tag, but also has smaller space compared with the information block to be displayed before the size adjustment, so that when the information block to be displayed which accords with the size of the cache space of the electronic price tag is sequentially transmitted to the electronic price tag, the communication efficiency is higher, the electronic price tag can store one information to be displayed in a memory of the electronic price tag every time the electronic price tag receives the information block to be displayed, and then the next information block to be displayed is received.
In addition, the size of the picture to be displayed of the electronic price tag can be made as small as possible through differential processing, and the information of the difference between the picture to be displayed of the electronic price tag and the stored picture of the electronic price tag can be sent to the electronic price tag only by carrying the information, so that the communication efficiency can be greatly improved. By obtaining the above at least one compressed package, the space of the information to be displayed can be further reduced, and communication efficiency is provided when at least one information block to be displayed, which accords with the size of the buffer space of the electronic price tag, is sequentially transmitted to the electronic price tag.
Fig. 2 is another flowchart of a method for transmitting electronic price tag information according to an embodiment of the present invention, as shown in fig. 2, the method includes:
step 201, if at least one to-be-displayed information block according with the size of the cache space of the electronic price tag is at least one compressed package of the to-be-displayed picture, performing the following steps in a circulating manner until all the at least one compressed package of the to-be-displayed picture is received, wherein the at least one to-be-displayed information block according with the size of the cache space of the electronic price tag is obtained by adjusting the size of to-be-displayed information of the electronic price tag according with the size of the cache space of the electronic price tag, and the to-be-displayed information block according with the size of the cache space of the electronic price tag is the to-be-displayed information block capable of being transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
Step 202, decompressing at least one compressed packet of the picture to be displayed in the cache space of the electronic price tag to obtain the picture to be displayed.
The memory in step 201 may be a nonvolatile memory, so as to achieve the best data storage effect.
Before step 201, the electronic price tag firstly sends the size of the storage space of the electronic price tag, for example, the electronic price tag can be sent to a server in communication with the electronic price tag, then the electronic price tag receives at least one information block to be displayed according to the size of the cache space of the electronic price tag according to step 201, wherein the at least one information block to be displayed of the electronic price tag is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag, and a specific adjustment method can refer to specific embodiments corresponding to steps 101-102. Since the information block to be displayed of the at least one electronic price tag sent by the server may be a plurality of compressed packets after segmented compression, in step 201, firstly, a determination is made, that is, if the information block to be displayed meeting the buffer space requirement of the electronic price tag is at least one compressed packet of the picture to be displayed, the following steps are cyclically executed for each compressed packet of the picture to be displayed until all of the at least one compressed packet of the picture to be displayed is received: receiving the compressed package, and storing the compressed package into a memory (such as Flash) of the electronic price tag; and releasing the buffer memory space of the electronic price tag. By circularly executing the above steps, the receiving of at least one compressed packet in sequence can be completed, and then in step 202, the decompressing process is performed on at least one compressed packet of the picture to be displayed in the buffer space of the electronic price tag, so as to obtain the picture to be displayed. The electronic tag is in a standby mode outside the information block to be displayed, so that the power consumption of the electronic tag is reduced, and the electronic tag is a balance means between selecting a chip with lower power consumption for the electronic tag and improving the communication efficiency.
In specific implementation, if the obtained picture to be displayed after decompression is subjected to differential processing, a complete picture to be displayed needs to be obtained, and the method for obtaining the picture to be displayed may be the method of the following embodiment.
In one embodiment, the electronic price tag information transmission method further includes:
and if the obtained picture to be displayed is the picture to be displayed subjected to the differential processing, performing anti-differential processing on the picture to be displayed subjected to the differential processing according to the picture stored in the electronic price tag.
In the above embodiment, the process of performing the anti-differential processing on the image to be displayed after the differential processing, that is, the electronic price tag restores all the information of the image to be displayed before the differential processing through the keywords of the image to be displayed and the stored image in the electronic price tag.
In particular, the electronic price tag receives the information to be displayed for display, and the specific photo to be displayed receives the display control information.
In one embodiment, the electronic price tag information transmission method further includes: receiving display control information of the electronic price tag;
and displaying the pictures stored in the electronic price tag according to the display control information of the electronic price tag.
In the above embodiment, the electronic price tag may receive display control information of the server, and the display control information may be an identification of information to be displayed (for example, a picture to be displayed).
In the method for transmitting electronic price tag information provided by the embodiment of the invention, if at least one to-be-displayed information block conforming to the size of the cache space of the electronic price tag is at least one compressed packet of a to-be-displayed picture, the following steps are circularly executed until all the at least one compressed packet of the to-be-displayed picture is received, wherein the at least one to-be-displayed information block conforming to the size of the cache space of the electronic price tag is obtained by adjusting the size of to-be-displayed information of the electronic price tag according to the size of the cache space of the electronic price tag, and the to-be-displayed information block conforming to the size of the cache space of the electronic price tag is to-be-displayed information block capable of being transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag; and decompressing at least one compressed packet of the picture to be displayed in the cache space of the electronic price tag to obtain the picture to be displayed. Therefore, when receiving the information block to be displayed, the size of the buffer space of the electronic price tag is considered, and after each time the buffer space of the electronic price tag is released, a new compressed packet is received, so that the communication efficiency can be provided. In addition, the electronic tag is in a standby mode except for receiving information to be displayed, so that the power consumption of the electronic tag is reduced.
Based on the same inventive concept, the embodiments of the present invention also provide a server, as described in the following implementation. Because the principles of solving the problems are similar to those of the electronic price tag information transmission method, the implementation of the server can refer to the implementation of the method, and the repetition is omitted.
Fig. 3 is a schematic diagram of a server according to an embodiment of the present invention, as shown in fig. 3, where the server includes:
the information processing module 301 is configured to adjust a size of information to be displayed of the electronic price tag according to a size of a cache space of the electronic price tag, and obtain at least one information block to be displayed according to the size of the cache space of the electronic price tag, where the information block to be displayed according to the size of the cache space of the electronic price tag is an information block to be displayed that can be transmitted to the electronic price tag at a time;
the information to be displayed sending module 302 is configured to send at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, to the electronic price tag sequentially.
In one embodiment, the information processing module 301 is specifically configured to:
obtaining a stored picture of the electronic price tag;
generating a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
Judging whether differential processing is required to be carried out on the pictures to be displayed of the electronic price tag according to the keywords of the stored pictures of the electronic price tag and the keywords of the pictures to be displayed of the electronic price tag;
and if the judgment result is that the difference processing is needed, carrying out the difference processing on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag, and obtaining at least one information block to be displayed which accords with the cache space size of the electronic price tag.
In one embodiment, the information processing module 301 is specifically configured to:
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag;
if the judgment result is that the segmented compression processing is needed, a plurality of compression packets of the information to be displayed, which accords with the cache space size of the electronic price tag, are obtained;
and if the judgment result is that the sectional compression processing is not needed, obtaining a compressed packet of the information to be displayed, which accords with the cache space size of the electronic price tag.
In an embodiment, the server further includes a display control information sending module 303, configured to:
and sending the display control information of the electronic price tag to the electronic price tag.
In the server provided by the embodiment of the invention, the size of information to be displayed of the electronic price tag is adjusted to obtain at least one information block to be displayed which accords with the size of the cache space of the electronic price tag, wherein the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time; the obtained information blocks to be displayed not only accord with the size of the cache space of the electronic price tag, but also have smaller space compared with the information blocks to be displayed before the size is adjusted, so that the communication efficiency is higher when at least one information block to be displayed accord with the size of the cache space of the electronic price tag is sequentially sent to the electronic price tag.
In addition, the size of the picture to be displayed of the electronic price tag can be made as small as possible through differential processing, and the information of the difference between the picture to be displayed of the electronic price tag and the stored picture of the electronic price tag can be sent to the electronic price tag only by carrying the information, so that the communication efficiency can be greatly improved. By obtaining the above at least one compressed package, the space of information to be displayed can be further reduced, and communication efficiency is provided when the information blocks to be displayed of at least one electronic price tag are sequentially transmitted to the electronic price tag.
Based on the same inventive concept, the embodiment of the invention also provides an electronic price tag, as described in the following implementation. Because the principles of solving the problems are similar to those of the electronic price tag information transmission method, the implementation of the electronic price tag can be referred to the implementation of the method, and the repetition is omitted.
Fig. 4 is a schematic diagram of an electronic price tag according to an embodiment of the present invention, as shown in fig. 4, the electronic price tag includes:
the information to be displayed receiving module 401 is configured to: if at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is at least one compressed package of the picture to be displayed, each compressed package of the picture to be displayed is circularly executed until all the compressed packages of the picture to be displayed are received, wherein the at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the cache space size of the electronic price tag, and the information block to be displayed, which accords with the cache space size of the electronic price tag, is the information block to be displayed which can be transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
the to-be-displayed picture obtaining module 402 is configured to decompress at least one compressed packet of the to-be-displayed picture in the buffer space of the electronic price tag, so as to obtain the to-be-displayed picture.
In an embodiment, the electronic price tag further comprises an anti-differential processing module 403 for:
And if the obtained picture to be displayed is the picture to be displayed subjected to the differential processing, performing anti-differential processing on the picture to be displayed subjected to the differential processing according to the picture stored in the electronic price tag.
In one embodiment, the electronic price tag further comprises a display module 404 for:
receiving display control information of the electronic price tag;
and displaying the pictures stored in the electronic price tag according to the display control information of the electronic price tag.
In the electronic price tag provided by the embodiment of the invention, if at least one to-be-displayed information block meeting the cache space size of the electronic price tag is at least one compressed package of the to-be-displayed picture, the following steps are circularly executed until all the at least one compressed package of the to-be-displayed picture is received, wherein the at least one to-be-displayed information block meeting the cache space size of the electronic price tag is obtained by adjusting the size of to-be-displayed information of the electronic price tag according to the cache space size of the electronic price tag, and the to-be-displayed information block meeting the cache space size of the electronic price tag is the to-be-displayed information block capable of being transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag; therefore, when receiving the information to be displayed, the size of the buffer space of the electronic price tag is considered, and after each time of releasing the buffer space of the electronic price tag, a new compressed packet is received, so that the communication efficiency can be provided. In addition, the electronic tag is in a standby mode except for receiving information to be displayed, so that the power consumption of the electronic tag is reduced.
In view of the foregoing embodiments, an embodiment is provided below to illustrate a detailed flow of electronic price tag information transmission, and fig. 5 is a detailed flow chart of electronic price tag information transmission in an embodiment of the present invention, as shown in fig. 5, including:
step 501, the electronic price tag sends the cache space size of the electronic price tag to a server;
step 502, a server receives the cache space size of an electronic price tag;
step 503, the server obtains a stored picture of the electronic price tag;
step 504, the server generates a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
step 505, the server judges whether to perform differential processing on the picture to be displayed of the electronic price tag according to the keyword of the stored picture of the electronic price tag and the keyword of the picture to be displayed of the electronic price tag; if the judgment result is that the difference processing is needed, the difference processing is carried out on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag;
step 506, the server judges whether to perform segment compression processing on the picture to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag and the size of the picture to be displayed after the difference processing of the electronic price tag;
Step 507, if the server determines that the segmented compression processing is required, obtaining a plurality of compression packets of the picture to be displayed, wherein the compression packets conform to the cache space size of the electronic price tag;
step 508, if the server determines that the sectional compression is not needed, obtaining a compressed packet of the picture to be displayed, which accords with the cache space size of the electronic price tag;
step 509, the server sequentially sends at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, to the electronic price tag;
step 510, the electronic price tag sequentially receives at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag;
when the electronic price tag is received, if at least one to-be-displayed information block conforming to the size of the cache space of the electronic price tag is at least one compressed package of the to-be-displayed picture, the following steps are circularly executed until all the at least one compressed package of the to-be-displayed picture is received, wherein the at least one to-be-displayed information block conforming to the size of the cache space of the electronic price tag is obtained by adjusting the size of to-be-displayed information of the electronic price tag according to the size of the cache space of the electronic price tag, and the to-be-displayed information block conforming to the size of the cache space of the electronic price tag is the to-be-displayed information block capable of being transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
Step 511, in the electronic price tag, decompressing at least one compressed packet of the picture to be displayed in the cache space of the electronic price tag to obtain the picture to be displayed;
step 512, in the electronic price tag, if the obtained picture to be displayed is the picture to be displayed subjected to the difference processing, performing the anti-difference processing on the picture to be displayed subjected to the difference processing according to the picture stored in the electronic price tag;
through the contrast processing, the complete picture to be displayed can be obtained, the above process is needed as long as the picture is needed to be displayed in the electronic price tag, at least one picture is stored in the memory of the electronic price tag, and then the electronic price tag waits for receiving display control information, so that the user can know which picture should be displayed.
Step 513, the server sends the display control information of the electronic price tag to the electronic price tag;
the display control information may be an identification of an electronic price tag;
step 514, receiving display control information of the electronic price tag; and displaying the pictures stored in the electronic price tag according to the display control information of the electronic price tag.
Of course, it can be understood that the above provides a detailed flow of electronic price tag information transmission, and other electronic price tag information transmission flows can be derived according to the above embodiment, and all related variations should fall within the protection scope of the present invention.
In the electronic price tag information transmission system provided by the embodiment of the invention, as shown in fig. 6, the electronic price tag information transmission system comprises the server 601 and the electronic price tag 602, wherein the server adjusts the size of information to be displayed of the electronic price tag according to the size of a cache space of the electronic price tag to obtain at least one information block to be displayed which accords with the size of the cache space of the electronic price tag, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time; the obtained information blocks to be displayed not only meet the size of the cache space of the electronic price tag, but also have smaller space compared with the information blocks to be displayed before the size is adjusted, so that the communication efficiency is higher when at least one information block to be displayed which meets the size of the cache space of the electronic price tag is sequentially sent to the electronic price tag.
In the electronic price tag, if at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, is at least one compressed package of the picture to be displayed, each compressed package of the picture to be displayed is circularly executed until all the at least one compressed package of the picture to be displayed is received, wherein the at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag, and the information block to be displayed, which accords with the size of the cache space of the electronic price tag, is the information block to be displayed which can be transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag; and decompressing at least one compressed packet of the picture to be displayed in the cache space of the electronic price tag to obtain the picture to be displayed. Therefore, when receiving the information to be displayed, the size of the buffer space of the electronic price tag is considered, and after each time of releasing the buffer space of the electronic price tag, a new compressed packet is received, so that the communication efficiency can be provided. In addition, the electronic tag is in a standby mode except for receiving information to be displayed, so that the power consumption of the electronic tag is reduced.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (10)

1. An electronic price tag information transmission method is characterized by comprising the following steps:
receiving the cache space size of the electronic price tag sent by the electronic price tag;
according to the size of the cache space of the electronic price tag, the size of information to be displayed of the electronic price tag is adjusted, at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time;
sequentially transmitting at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, to the electronic price tag;
according to the size of the cache space of the electronic price tag, the size of the information to be displayed of the electronic price tag is adjusted, and at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, and the method comprises the following steps:
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag;
if the judgment result is that the segmented compression processing is needed, a plurality of compression packets of the information to be displayed, which accords with the cache space size of the electronic price tag, are obtained;
if the judgment result is that the sectional compression processing is not needed, obtaining a compressed packet of the information to be displayed, which accords with the cache space size of the electronic price tag;
When the cache space of the electronic price tag is smaller than the information to be displayed of the electronic price tag, judging that the sectional compression processing is needed;
before judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, the method further comprises the following steps:
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, and if the judgment result is that the information to be displayed of the electronic price tag needs to be subjected to differential processing, carrying out differential processing on the information to be displayed of the electronic price tag;
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, wherein the method comprises the following steps:
judging whether the information to be displayed of the electronic price tag subjected to the difference processing needs to be subjected to sectional compression processing according to the cache space size of the electronic price tag and the size of the information to be displayed of the electronic price tag subjected to the difference processing;
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, if so, carrying out differential processing on the information to be displayed of the electronic price tag, wherein the differential processing comprises the following steps:
Obtaining a stored picture of the electronic price tag;
generating a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
judging whether differential processing is required to be carried out on the pictures to be displayed of the electronic price tag according to the keywords of the stored pictures of the electronic price tag and the keywords of the pictures to be displayed of the electronic price tag;
if the judgment result is that the difference processing is needed, the difference processing is carried out on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag;
the stored picture of the electronic price tag does not have to be sent by the electronic price tag;
the electronic price tag sends the data to the memory space through the heartbeat to be used as the cache space of the data cache;
after the electronic price tag receives at least one compressed package, each compressed package of the picture to be displayed circularly executes the following steps until all the at least one compressed package of the picture to be displayed is received: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
when the electronic price tag is decompressed, at least one compressed package of the picture to be displayed in the cache space of the electronic price tag is decompressed, and the picture to be displayed is obtained.
2. The electronic price tag information transfer method of claim 1, further comprising:
and sending the display control information of the electronic price tag to the electronic price tag.
3. An electronic price tag information transmission method is characterized by comprising the following steps:
if at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is at least one compressed package of the picture to be displayed, each compressed package of the picture to be displayed is circularly executed until all the compressed packages of the picture to be displayed are received, wherein the at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the cache space size of the electronic price tag, and the information block to be displayed, which accords with the cache space size of the electronic price tag, is the information block to be displayed which can be transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
decompressing at least one compressed packet of the picture to be displayed in the cache space of the electronic price tag to obtain the picture to be displayed;
the at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag, and comprises the following steps:
Receiving the cache space size of the electronic price tag sent by the electronic price tag;
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag;
if the judgment result is that the segmented compression processing is needed, a plurality of compression packets of the information to be displayed, which accords with the cache space size of the electronic price tag, are obtained;
if the judgment result is that the sectional compression processing is not needed, obtaining a compressed packet of the information to be displayed, which accords with the cache space size of the electronic price tag;
when the cache space of the electronic price tag is smaller than the information to be displayed of the electronic price tag, judging that the sectional compression processing is needed;
before judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, the method further comprises the following steps:
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, and if the judgment result is that the information to be displayed of the electronic price tag needs to be subjected to differential processing, carrying out differential processing on the information to be displayed of the electronic price tag;
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, wherein the method comprises the following steps:
Judging whether the information to be displayed of the electronic price tag subjected to the difference processing needs to be subjected to sectional compression processing according to the cache space size of the electronic price tag and the size of the information to be displayed of the electronic price tag subjected to the difference processing;
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, if so, carrying out differential processing on the information to be displayed of the electronic price tag, wherein the differential processing comprises the following steps:
obtaining a stored picture of the electronic price tag;
generating a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
judging whether differential processing is required to be carried out on the pictures to be displayed of the electronic price tag according to the keywords of the stored pictures of the electronic price tag and the keywords of the pictures to be displayed of the electronic price tag;
if the judgment result is that the difference processing is needed, the difference processing is carried out on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag;
the stored picture of the electronic price tag does not have to be sent by the electronic price tag;
the electronic price tag sends the heartbeat data to the cache space for data cache in the memory space.
4. The electronic price tag information transfer method of claim 3, further comprising:
And if the obtained picture to be displayed is the picture to be displayed subjected to the differential processing, performing anti-differential processing on the picture to be displayed subjected to the differential processing according to the picture stored in the electronic price tag.
5. The electronic price tag information transfer method of claim 3, further comprising:
receiving display control information of the electronic price tag;
and displaying the pictures stored in the electronic price tag according to the display control information of the electronic price tag.
6. A server, comprising:
the information processing module is used for receiving the cache space size of the electronic price tag sent by the electronic price tag; according to the size of the cache space of the electronic price tag, the size of information to be displayed of the electronic price tag is adjusted, at least one information block to be displayed which accords with the size of the cache space of the electronic price tag is obtained, and the information block to be displayed which accords with the size of the cache space of the electronic price tag is the information block to be displayed which can be transmitted to the electronic price tag at one time;
the information to be displayed sending module is used for sequentially sending at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, to the electronic price tag;
the information processing module is specifically used for:
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag;
If the judgment result is that the segmented compression processing is needed, a plurality of compression packets of the information to be displayed, which accords with the cache space size of the electronic price tag, are obtained;
if the judgment result is that the sectional compression processing is not needed, obtaining a compressed packet of the information to be displayed, which accords with the cache space size of the electronic price tag;
when the cache space of the electronic price tag is smaller than the information to be displayed of the electronic price tag, judging that the sectional compression processing is needed;
the information processing module is also used for:
judging whether differential processing is needed to be carried out on the information to be displayed of the electronic price tag before judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, and carrying out differential processing on the information to be displayed of the electronic price tag if the judgment result is that the differential processing is needed;
the information processing module is specifically used for:
judging whether the information to be displayed of the electronic price tag subjected to the difference processing needs to be subjected to sectional compression processing according to the cache space size of the electronic price tag and the size of the information to be displayed of the electronic price tag subjected to the difference processing;
obtaining a stored picture of the electronic price tag;
Generating a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
judging whether differential processing is required to be carried out on the pictures to be displayed of the electronic price tag according to the keywords of the stored pictures of the electronic price tag and the keywords of the pictures to be displayed of the electronic price tag;
if the judgment result is that the difference processing is needed, the difference processing is carried out on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag;
the stored picture of the electronic price tag does not have to be sent by the electronic price tag;
the electronic price tag sends the data to the memory space through the heartbeat to be used as the cache space of the data cache;
after the electronic price tag receives at least one compressed package, each compressed package of the picture to be displayed circularly executes the following steps until all the at least one compressed package of the picture to be displayed is received: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
when the electronic price tag is decompressed, at least one compressed package of the picture to be displayed in the cache space of the electronic price tag is decompressed, and the picture to be displayed is obtained.
7. An electronic price tag, comprising:
The information receiving module to be displayed is used for: if at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is at least one compressed package of the picture to be displayed, each compressed package of the picture to be displayed is circularly executed until all the compressed packages of the picture to be displayed are received, wherein the at least one information block to be displayed, which accords with the cache space size of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the cache space size of the electronic price tag, and the information block to be displayed, which accords with the cache space size of the electronic price tag, is the information block to be displayed which can be transmitted to the electronic price tag at one time: receiving the compressed package, and storing the compressed package into a memory of the electronic price tag; releasing the buffer space of the electronic price tag;
the to-be-displayed picture obtaining module is used for decompressing at least one compressed packet of the to-be-displayed picture in the cache space of the electronic price tag to obtain the to-be-displayed picture;
the at least one information block to be displayed, which accords with the size of the cache space of the electronic price tag, is obtained by adjusting the size of the information to be displayed of the electronic price tag according to the size of the cache space of the electronic price tag, and comprises the following steps:
Receiving the cache space size of the electronic price tag sent by the electronic price tag;
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag;
if the judgment result is that the segmented compression processing is needed, a plurality of compression packets of the information to be displayed, which accords with the cache space size of the electronic price tag, are obtained;
if the judgment result is that the sectional compression processing is not needed, obtaining a compressed packet of the information to be displayed, which accords with the cache space size of the electronic price tag;
when the cache space of the electronic price tag is smaller than the information to be displayed of the electronic price tag, judging that the sectional compression processing is needed;
before judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, the method further comprises the following steps:
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, and if the judgment result is that the information to be displayed of the electronic price tag needs to be subjected to differential processing, carrying out differential processing on the information to be displayed of the electronic price tag;
judging whether the information to be displayed of the electronic price tag needs to be subjected to sectional compression processing according to the size of the cache space of the electronic price tag and the size of the information to be displayed of the electronic price tag, wherein the method comprises the following steps:
Judging whether the information to be displayed of the electronic price tag subjected to the difference processing needs to be subjected to sectional compression processing according to the cache space size of the electronic price tag and the size of the information to be displayed of the electronic price tag subjected to the difference processing;
judging whether the information to be displayed of the electronic price tag needs to be subjected to differential processing, if so, carrying out differential processing on the information to be displayed of the electronic price tag, wherein the differential processing comprises the following steps:
obtaining a stored picture of the electronic price tag;
generating a picture to be displayed of the electronic price tag and a keyword of the picture to be displayed according to the information to be displayed of the electronic price tag;
judging whether differential processing is required to be carried out on the pictures to be displayed of the electronic price tag according to the keywords of the stored pictures of the electronic price tag and the keywords of the pictures to be displayed of the electronic price tag;
if the judgment result is that the difference processing is needed, the difference processing is carried out on the picture to be displayed of the electronic price tag according to the stored picture of the electronic price tag;
the stored picture of the electronic price tag does not have to be sent by the electronic price tag;
the electronic price tag sends the heartbeat data to the cache space for data cache in the memory space.
8. An electronic price tag information transfer system comprising the server of claim 6 and the electronic price tag of claim 7.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1 to 5 when executing the computer program.
10. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program for executing the method of any one of claims 1 to 5.
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