CN112636790B - Electronic price tag communication system, electronic price tag communication method and computer readable storage medium - Google Patents
Electronic price tag communication system, electronic price tag communication method and computer readable storage medium Download PDFInfo
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- H04B5/70—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
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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
Abstract
The application provides an electronic price tag communication system, an electronic price tag communication method and a computer readable storage medium, and belongs to the technical field of price tags of the Internet of things. The electronic price tag communication system comprises a base station and price tags, wherein communication interaction is carried out between the base station and the price tags through a wired or/and wireless communication protocol, and the price tags comprise: the CPU processor, the memory, the radio frequency communication module, the battery and the display screen which are respectively and electrically connected with the CPU processor, and the radio frequency communication module is also connected with an antenna; the CPU processor dynamically controls and adjusts the transmitting frequency of the radio frequency communication module according to the current output voltage of the battery and the mapping forms corresponding to different transmitting powers of different voltages stored in the memory. According to the application, the emission power of the electronic price tag is dynamically adjusted according to the voltage and the scene, so that the stability of communication under low voltage is improved, and the quality and reputation of products are improved.
Description
Technical Field
The application relates to the technical field of price tags of the Internet of things, in particular to an electronic price tag communication system, an electronic price tag communication method and a computer readable storage medium.
Background
The price label for displaying the commodity information such as name, price, commodity number and the like is usually displayed on a paper card or a plastic card in a printing, color printing and other modes by the traditional merchant. When commodity information changes, the commodity information needs to be printed again to form a price tag, and the corresponding commodity is found on a goods shelf to replace the price tag, so that a large amount of manpower and material resources are wasted, and the commodity information is easy to lose and misplace. And the traditional price label is disposable, and is not environment-friendly.
To solve this problem, electronic price tags have been developed. The electronic price tags, also called electronic shelf tags (Electronic Shelf Label, ESL), are electronic display devices with information receiving and transmitting functions, are based on a private communication protocol of 2.4G open frequency, each electronic price tag is connected with a database through a wired or wireless network, and the latest commodity information is displayed through a screen on the electronic price tag, so that the price consistency between a cash register and a shelf is realized. Compared with the traditional price tag, the electronic price tag has the advantages of convenient manufacture, high informatization degree, exquisite and beautiful appearance, resource saving, environmental protection and the like. With the development of new retail in China, electronic price tags are widely used in supermarkets, convenience stores, pharmacies and other occasions to realize accurate display and rapid update of commodity prices, so that retail operation efficiency is improved, and operation cost is reduced.
In the prior art, a station is typically used to perform operations on an electronic price tag. The electronic price tag generally comprises an MCU control module, a communication module, a display screen, a battery and the like, and the communication module of the electronic price tag comprises a Power Amplifier (PA) and other voltage sensitive devices. The battery in the electronic price tag is powered by using a button battery, the voltage can be reduced along with the use of the battery, the chip operates under low electricity, the output power can be reduced by 1-2db, and sometimes even 3db. However, after the power is reduced, under some scenes with stronger interference or electronic price tags far away from the base station, the base station cannot receive the report information of the price tag due to insufficient uplink transmission power of the price tag, so that problems such as communication faults occur, for example, the base station cannot receive the heartbeat report of the price tag, the information base station reported by the price tag cannot receive the information during image pushing, repeated image pushing failure occurs.
The current price tag system is fixed in transmitting power, and the problem that the quality and the reputation of a product are affected due to the fact that the transmitting power is reduced due to the fact that the voltage of a battery in an electronic price tag is reduced along with the time is avoided.
Disclosure of Invention
Accordingly, the present application is directed to an electronic price tag communication system, an electronic price tag communication method, and a computer readable storage medium, which are capable of dynamically adjusting the emission power of an electronic price tag according to voltage and scene, improving the stability of communication under low voltage, and improving the quality and reputation of products.
The technical scheme adopted by the application for solving the technical problems is as follows:
the first aspect of the present application provides an electronic price tag communication system, including a base station and price tags, where communication interaction is performed between the base station and the price tags through a wired or/and wireless communication protocol, the price tags include: the device comprises a CPU processor, a memory, a radio frequency communication module, a battery and a display screen, wherein the memory, the radio frequency communication module, the battery and the display screen are respectively and electrically connected with the CPU processor, and the radio frequency communication module is also connected with an antenna;
the CPU processor dynamically controls and adjusts the transmitting frequency of the radio frequency communication module according to the current output voltage of the battery and the mapping forms corresponding to different transmitting power of different voltages stored in the memory.
In some embodiments, the radio frequency communication module is a 2.4G proprietary protocol, and the radio frequency communication module performs communication interaction with the base station.
In some embodiments, the base station includes a main control processor and at least one gateway, the main controller controlling the gateway to receive and transmit communication signals to the outside.
In some embodiments, the battery is a rechargeable battery.
In some embodiments, the display screen is a touchable display screen.
The second aspect of the present application also provides an electronic price tag communication method, which is applied to the electronic price tag communication system, and the method comprises the following steps:
calculating the current output voltage of the price tag battery;
according to the output voltage control of the current battery, the transmitting power corresponding to different voltages stored in the memory in advance is fetched;
and controlling the radio frequency communication module to externally transmit signals with different transmitting powers according to different transmitting powers corresponding to different voltages.
In some embodiments, the method further comprises the step of:
judging whether the product push graph of the price tag is successfully sent or not, and if not, pushing again for a certain preset times.
In some embodiments, the method further comprises the step of:
if the product pushing graph is not successful for a certain preset times, the transmitting power of the price tag is increased by a certain preset progress.
In some embodiments, the method further comprises the step of: and returning the transmitting power at the default voltage to serve as the transmitting power of the current price tag to work after the successful transmission of the push map is finished.
The application also provides a computer readable storage medium comprising a processor, a computer readable storage medium and a computer program stored on the computer readable storage medium, which when executed by the processor, performs the steps of the method as described in any of the preceding claims.
According to the electronic price tag communication system and the electronic price tag communication method provided by the embodiment of the application, the corresponding transmitting power is called according to the current voltage value of the price tag by pre-storing the tables of different voltages corresponding to different transmitting powers in the price tag memory, so that a mechanism for dynamically adjusting the transmitting power according to the voltage is provided, and the problems that the current price tag is reduced in battery power and voltage along with the increase of service time, and the price tag can only work with one transmitting power under low voltage to influence the communication stability between the price tag and a base station are solved.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal according to the present application;
fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an electronic price tag communication system according to an embodiment of the present application;
FIG. 4 is a block diagram illustrating a price tag in an electronic price tag communication system according to an embodiment of the present application;
FIG. 5 is a chart showing different voltages corresponding to different transmitting powers pre-stored in an electronic price tag communication system according to an embodiment of the present application;
FIG. 6 is a flowchart of an embodiment of an electronic price tag communication method according to an embodiment of the present application;
FIG. 7 is a flowchart of another embodiment of an electronic price tag communication method according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear and obvious, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In the following description, suffixes such as "module", "component", or "unit" for representing elements are used only for facilitating the description of the present application, and have no specific meaning per se. Thus, "module," "component," or "unit" may be used in combination.
The terminal may be implemented in various forms. For example, the terminals described in the present application may include mobile terminals such as cell phones, tablet computers, notebook computers, palm computers, personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like.
The following description will be given taking a mobile terminal as an example, and those skilled in the art will understand that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for a moving purpose.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present application, the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal structure shown in fig. 1 is not limiting of the mobile terminal and that the mobile terminal may include more or fewer components than shown, or may combine certain components, or a different arrangement of components.
The following describes the components of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be used for receiving and transmitting signals during the information receiving or communication process, specifically, after receiving downlink information of the base station, processing the downlink information by the processor 110; and, the uplink data is transmitted to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication, global System for Mobile communications), GPRS (General Packet Radio Service ), CDMA2000 (Code Division Multiple Access, CDMA 2000), WCDMA (Wideband Code Division Multiple Access ), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, time Division synchronous code Division multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, frequency Division Duplex Long term evolution), and TDD-LTE (Time Division Duplexing-Long Term Evolution, time Division Duplex Long term evolution), etc.
WiFi belongs to a short-distance wireless transmission technology, and a mobile terminal can help a user to send and receive e-mails, browse web pages, access streaming media and the like through the WiFi module 102, so that wireless broadband Internet access is provided for the user. Although fig. 1 shows a WiFi module 102, it is understood that it does not belong to the necessary constitution of a mobile terminal, and can be omitted entirely as required within a range that does not change the essence of the application.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output (e.g., a call signal reception sound, a message reception sound, etc.) related to a specific function performed by the mobile terminal 100. The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive an audio or video signal. The a/V input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, the graphics processor 1041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphics processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data may be converted into a format output that can be transmitted to the mobile communication base station via the radio frequency unit 101 in the case of a telephone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting the audio signal.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and the proximity sensor can turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when stationary, and can be used for applications of recognizing the gesture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; as for other sensors such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc. that may also be configured in the mobile phone, the detailed description thereof will be omitted.
The display unit 106 is used to display information input by a user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 107 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the mobile terminal. In particular, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 1071 or thereabout by using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, and sends the touch point coordinates to the processor 110, and can receive and execute commands sent from the processor 110. Further, the touch panel 1071 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc., as specifically not limited herein.
Further, the touch panel 1071 may overlay the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or thereabout, the touch panel 1071 is transferred to the processor 110 to determine the type of touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of touch event. Although in fig. 1, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 may be integrated with the display panel 1061 to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 108 serves as an interface through which at least one external device can be connected with the mobile terminal 100. For example, the external devices may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and an external device.
Memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area that may store an operating system, application programs required for at least one function (such as a sound playing function, an image playing function, etc.), and a storage data area; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the handset, etc. In addition, memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power source 111 (e.g., a battery) for supplying power to the respective components, and preferably, the power source 111 may be logically connected to the processor 110 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described herein.
In order to facilitate understanding of the embodiments of the present application, a communication network system on which the mobile terminal of the present application is based will be described below.
Referring to fig. 2, fig. 2 is a schematic diagram of a communication network system according to an embodiment of the present application, where the communication network system is an LTE system of a general mobile communication technology, and the LTE system includes a UE (User Equipment) 201, an e-UTRAN (Evolved UMTS Terrestrial Radio Access Network ) 202, an epc (Evolved Packet Core, evolved packet core) 203, and an IP service 204 of an operator that are sequentially connected in communication.
Specifically, the UE201 may be the terminal 100 described above, and will not be described herein.
The E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. The eNodeB2021 may be connected with other eNodeB2022 by a backhaul (e.g., an X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide access from the UE201 to the EPC 203.
EPC203 may include MME (Mobility Management Entity ) 2031, hss (Home Subscriber Server, home subscriber server) 2032, other MMEs 2033, SGW (Serving Gate Way) 2034, pgw (PDN Gate Way) 2035 and PCRF (Policy and Charging Rules Function, policy and tariff function entity) 2036, and so on. The MME2031 is a control node that handles signaling between the UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location registers (not shown) and to hold user specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034 and PGW2035 may provide IP address allocation and other functions for UE201, PCRF2036 is a policy and charging control policy decision point for traffic data flows and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem ), or other IP services, etc.
Although the LTE system is described above as an example, it should be understood by those skilled in the art that the present application is not limited to LTE systems, but may be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the above mobile terminal hardware structure and the communication network system, various embodiments of the method of the present application are provided.
Embodiment one:
the application provides an electronic price tag communication system, referring to fig. 3 and 4, which comprises a base station 30 and a price tag 40, wherein the base station 30 and the price tag 40 perform communication interaction through a wired or/and wireless communication protocol. The base station 30 comprises a main control processor 301 and a plurality of gateways 302, wherein the main control processor 301 has data concurrency processing capability, and simultaneously controls the gateways 302 to receive and send communication signals to the outside. The gateway 302 has 2.4G private protocol and price tag communication capabilities.
The price tag 40 comprises a CPU processor 401, a memory 402, a radio frequency communication module 403, a battery 405 and a display screen 406, wherein the memory 402, the radio frequency communication module 403, the battery 405 and the display screen 406 are respectively and electrically connected with the CPU processor 401, and the radio frequency communication module 403 is also connected with an antenna 404. The memory 402 is pre-stored with mapping tables corresponding to different transmitting powers with different voltages, the radio frequency communication module 403 performs data communication interaction according to the control of the CPU processor 401, and the antenna 404 is used for sending and receiving communication signals. The battery 405 provides power support for the entire price tag 40, and in one embodiment, the battery 405 is a rechargeable battery. The display 406 is configured to display price tag information of the commodity in real time, and provide convenience for the customer to display and view the product information, and in an embodiment, the display 406 is a touchable display. The CPU processor 401 is configured to control communication interaction between each functional module of the price tag 40 and between the functional module and the base station 30.
The memory 402 of the price tag 40 stores a mapping table of different transmitting powers corresponding to different voltages currently output by the price tag, the CPU processor dynamically controls and adjusts the transmitting frequency of the radio frequency communication module 403 according to the voltage currently output by the battery 405 and the mapping table of different transmitting powers corresponding to different voltages stored in the memory 402, and controls the price tag to transmit and receive an external signal by adopting the corresponding transmitting power, so as to solve the problem that the battery power is reduced, and the price tag can only work with one transmitting power under the condition of low voltage, thereby causing unstable communication.
In the following, the embodiment of the present application will be described with specific examples, in which different voltages contained in the price tag 40 correspond to different transmitting powers to achieve the external communication interaction. Firstly, a corresponding table of the current output voltage of a price tag and the transmitting power of a radio frequency communication module is stored in a price tag memory 402; for example, in fig. 5, the different output voltages of the price tag correspond to different transmitting powers of the radio frequency communication module. For example, when the battery is in a full-power A-volt power supply, the transmitting power requirement of the radio frequency communication module is B watts, so that the signal transmitted to the outside is strongest, the base station can quickly receive the signal, the battery energy is consumed at any time, the electric quantity is smaller and smaller, the output voltage is smaller, the corresponding transmitting power is correspondingly smaller, for example, when the battery voltage is (A-1) volts, the transmitting power of the radio frequency communication module is (B-2) watts; when the voltage of the battery is (A-N) V, the transmitting power of the radio frequency communication module is (B-M), so that the current different voltages of the battery correspond to the different transmitting powers of the radio frequency communication module, and stable signal communication between the base station and the price tag can be realized. In this case, the A, B, N, M are different positive integers, and N is smaller than a and M is smaller than B.
According to the electronic price tag communication system, the table of different voltages corresponding to different transmitting powers of the radio frequency communication module is pre-stored in the price tag memory, and the transmitting power corresponding to the radio frequency communication module is dynamically invoked according to the current output voltage value of the price tag battery, so that the mechanism of dynamically adjusting the transmitting power of the price tag according to the voltage is provided, and the problems that the electric quantity is reduced due to battery consumption along with the increase of service time, the voltage is reduced, and the price tag can only work with one transmitting power under low voltage to affect the communication stability with a base station are solved.
Embodiment two:
the embodiment of the application also provides an electronic price tag communication method, referring to fig. 6, which is applied to the electronic price tag communication system, and specifically includes the following steps:
s602, calculating the current output voltage of the price tag battery;
specifically, the voltage currently output by the price tag battery is calculated by the CPU processor 401.
S604, controlling and retrieving the transmitting power corresponding to different voltages stored in the memory in advance according to the output voltage of the current battery;
specifically, the CPU processor 401 calculates the current output voltage of the battery 405 in real time, and controls to retrieve different transmission powers corresponding to different voltages stored in the memory 402 according to a mapping table of the current output voltage of the battery and different transmission powers corresponding to different voltages pre-stored in the memory 402.
S606, according to different transmitting powers corresponding to different voltages, the CPU processor 401 controls the radio frequency communication module 403 to transmit signals with different transmitting powers.
According to the electronic price tag communication method, corresponding transmitting power is dynamically adjusted according to different transmitting power information corresponding to different voltages pre-stored in the price tag 40 memory 402 and according to the voltages and scenes, so that the transmitting function of the radio frequency communication module 403 is dynamically adjusted, the price tag is in different voltages, and signals are communicated by different transmitting power, so that the problem that the communication is unstable due to the fact that only one transmitting power exists under the existing low-voltage condition is solved.
In one embodiment, the electronic price tag communication method further comprises the steps of:
s608, determine whether the push map of the product price tag is successfully sent? If not, re-pushing for a certain number of times;
specifically, judging whether the push graph of the price tag of the product is successfully sent, and if so, indicating that the output voltage and the transmitting power of the price tag can enable the price tag signal of the product to be sent out; if not, the method is carried out again according to the preset times.
S610, if the re-pushing is still unsuccessful for a certain number of times, increasing the transmitting power by a certain preset progress;
specifically, if the push graph of the price tag of the product is pushed again for a preset number of times, the push graph is still not successfully transmitted, then the transmission power of the radio frequency transmission module of the price tag needs to be adjusted and increased, and the increase of the transmission power of the price tag can be increased according to a certain step until the push graph is successfully transmitted.
And S612, returning the transmitting power at the default voltage to serve as the transmitting power of the current price tag to work after the successful transmission of the push map is finished.
Specifically, after increasing the transmitting power according to a certain step until the push map is successfully transmitted, the current voltage and the current transmitting power can be matched, so that information can be sent out, and the current increased transmitting function is defaulted to be the transmitting power under the current voltage to work.
According to the electronic price tag communication method disclosed by the embodiment of the application, the CPU processor 404 detects the current voltage of the price tag battery in real time, dynamically retrieves the transmitting power corresponding to the voltage stored in the memory according to the current output voltage and the scene, and controls the radio frequency communication module to transmit information according to the transmitting power, so that the transmitting function is dynamically adjusted, the price tag system is in different voltages and realizes signal communication by using different transmitting powers, and the problem that the communication is unstable because the price tag system can only work according to one transmitting power under the condition of low voltage is solved.
Embodiment III:
according to an embodiment of the present application, a computer readable storage medium is provided, on which a computer program is stored, where the computer program when executed by a processor implements the steps in the above-mentioned automatic adjustment method for wireless terminals, and specific steps are described in the first embodiment and are not repeated herein.
The memory in this embodiment can be used to store software programs as well as various data. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the cellular phone, etc. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.
According to an example of the present embodiment, all or part of the flow in the method of the above embodiment may be implemented by a computer program to instruct related hardware, where the program may be stored in a computer readable storage medium, such as a storage medium of a computer system, and the program may be stored in the storage medium of the computer system and executed by at least one processor in the computer system, to implement the flow including the embodiments of the methods as described above. The storage medium includes, but is not limited to, magnetic disks, flash disks, optical disks, read-Only Memory (ROM), and the like.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing embodiment numbers of the present application are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (9)
1. An electronic price tag communication system comprises a base station and price tags, wherein communication interaction is carried out between the base station and the price tags through a wired or/and wireless communication protocol, and the electronic price tag communication system is characterized in that the price tags comprise: the device comprises a CPU processor, a memory, a radio frequency communication module, a battery and a display screen, wherein the memory, the radio frequency communication module, the battery and the display screen are respectively and electrically connected with the CPU processor, and the radio frequency communication module is also connected with an antenna;
the CPU processor is used for controlling communication interaction between each functional module of the price tag and between each functional module and the base station;
the battery is a rechargeable battery;
the display screen is used for displaying price tag information of the commodity in real time and providing convenient product information display and check for customers;
the CPU processor dynamically controls and adjusts the transmitting frequency of the radio frequency communication module according to the current output voltage of the battery and the mapping forms corresponding to different transmitting power of different voltages stored in the memory.
2. The electronic price tag communication system of claim 1, wherein the radio frequency communication module is a 2.4G proprietary protocol, and the radio frequency communication module is in communication interaction with the base station.
3. The electronic price tag communication system of claim 1 or 2, wherein the base station comprises a main control processor and at least one gateway, the main controller controlling the gateway to receive and transmit communication signals externally.
4. An electronic price tag communication system as claimed in claim 2 or 3, characterized in that the battery is a rechargeable battery.
5. An electronic price tag communication system as claimed in claim 2 or 3, characterized in that the display screen is a touchable display screen.
6. An electronic price tag communication method applied to the electronic price tag communication system as claimed in any one of claims 1 to 5, characterized in that the method comprises the following steps:
calculating the current output voltage of the price tag battery;
according to the output voltage control of the current battery, the transmitting power corresponding to different voltages stored in the memory in advance is fetched;
controlling the radio frequency communication module to transmit signals outwards at different transmitting powers according to different transmitting powers corresponding to different voltages;
judging whether the product push graph of the price tag is successfully sent or not, and if not, pushing again for a certain preset times.
7. The electronic price tag communication method of claim 6, further comprising the steps of:
if the product pushing graph is not successfully pushed again for a certain preset times, the transmitting power of the price tag is increased by a certain preset progress.
8. The electronic price tag communication method of claim 7, further comprising the steps of: and returning the transmitting power at the default voltage to serve as the transmitting power of the current price tag to work after the successful transmission of the push map is finished.
9. A computer readable storage medium comprising a processor, a computer readable storage medium and a computer program stored on the computer readable storage medium, which when executed by the processor, performs the steps in the electronic price label communication method of any of claims 6 to 8.
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