CN114095889B - Method and system for instant data release applied to electronic paper bracelets - Google Patents

Abstract

The embodiment of the invention discloses a method and a system for immediately publishing data applied to an electronic paper handle ring. According to the embodiment of the invention, the Lora communication module and the LTE CAT1 communication module are arranged, so that the Lora communication module is low in power consumption, but low in transmission rate, the LTE CAT1 communication module is higher in transmission but higher in power consumption, the notification message is monitored through the Lora communication module, and the LTE CAT1 communication module in a power-off state is activated to receive image data to be issued at a higher transmission rate only after the notification message is received, so that the communication rate is ensured, the waste of power consumption is reduced to the greatest extent, and the cruising ability of the electronic paper handle ring is improved.

Description

Method and system for instant data release applied to electronic paper bracelets

Technical field

The invention relates to the Internet of Things and electronic paper technology, and in particular to a method and system for instant data release applied to electronic paper bracelets.

Background technique

With the rapid development of emerging technologies, traditional media carriers are no longer able to meet users' visual, fast-paced and interactive needs. The emergence and development of e-paper, Internet of Things and 5G technologies have subverted the previous way of presenting media content in smart travel, giving traditional media intelligence and commercialization. According to statistics, as of the end of 2019, my country's urban rail transit has been equipped with a total of 6,178 subway trains, each train is equipped with an average of 300 handles, and the market size is 2 million; as of the end of 2020, there are 600,000 buses nationwide, and each vehicle is equipped with an average of 20 handles. Handle, the market size is 12 million units. Faced with such a huge handle terminal, the low delivery efficiency of traditional paper media cannot meet the development requirements of today's new media and advertising business.

At that time, the power consumption of the e-paper bracelet for real-time release of data was high, which would affect the battery life of the e-paper bracelet.

Contents of the invention

In view of this, embodiments of the present invention provide a method and system for instant data release applied to electronic paper bracelets.

In the first aspect, a method for instant data release applied to electronic paper bracelets is provided. The method includes:

Keep the Lora communication module in low-power working mode and control the LTE CAT1 communication module to be in a power-off state;

In response to the Lora communication module receiving the notification message, the LTE CAT1 communication module is controlled to power on and receive image data.

Further, the image data is image data to be published for electronic paper handle release.

Further, the method also includes:

In response to the LTE CAT1 communication module receiving the image data, the electronic ink screen of the electronic paper handle is controlled to instantly display the image data.

Further, the method also includes:

In response to the LTE CAT1 communication module receiving the image data, the image data is stored in a predetermined memory for subsequent carousel display.

In a second aspect, an instant data release system for electronic paper handles is provided. The system includes a data release device and a plurality of electronic paper handles; wherein the data release device has a first Lora communication module and a first LTE CAT1 communication module, the electronic paper handle ring has a second Lora communication module and a second LTE CAT1 communication module;

The data publishing device is configured to send a notification message through the first Lora communication module, and in response to the electronic paper bracelet entering the receiving mode, send the image data through the first LTE CAT1 communication module;

The electronic paper handle is configured to keep the second Lora communication module in a low-power working mode and control the second LTE CAT1 communication module to be in a power-off state; and, in response to the second Lora communication module receiving the notification message, control The second LTE CAT1 communication module is powered on to receive image data.

Further, the electronic paper handle ring further includes an electronic ink screen, and the image data is image data to be released for display on the electronic ink screen.

Further, the electronic paper handle ring is further configured to control the electronic ink screen to instantly display the image data in response to the second LTE CAT1 communication module receiving the image data.

Further, the electronic paper handle ring also includes a memory;

The electronic paper handle ring is further configured to, in response to the second LTE CAT1 communication module receiving the image data, store the image data into a predetermined memory for subsequent carousel display.

Further, the data publishing device is further configured to control the first LTE CAT1 communication module to power off after all the image data is sent, and send a completion message through the first Lora communication module;

The electronic paper handle ring is further configured to, in response to receiving the completion message through the second Lora communication module, control the second LTE CAT1 communication module to power off, and control the second Lora communication module to enter low power consumption. model.

Further, the notification message and the completion message are sent in a broadcast or multicast manner.

In the embodiment of the present invention, the Lora communication module and the LTE CAT1 communication module are set up. The Lora communication module has low power consumption but low transmission rate, while the LTE CAT1 communication module has high transmission but high power consumption. The Lora communication module is used to monitor notifications. message, and only after receiving the notification message, the LTE CAT1 communication module in the power-off state is activated to receive the image data that needs to be released at a higher transmission rate, thereby minimizing power consumption while ensuring the communication rate. waste, improving the battery life of the e-paper bracelet.

Description of drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

Figure 1 is a schematic structural diagram of an electronic paper handle ring according to an embodiment of the present invention;

Figure 2 is a schematic circuit diagram of an electronic paper handle ring according to an embodiment of the present invention;

Figure 3 is a schematic diagram of a data release system applied to subway electronic paper bracelets according to an embodiment of the present invention;

FIG. 4 is a flow chart of an instant data publishing method applied to an electronic paper bracelet according to an embodiment of the present invention.

Detailed ways

The present invention will be described below based on examples, but the present invention is not limited only to these examples. In the following detailed description of the invention, specific details are set forth. It is possible for a person skilled in the art to fully understand the present invention without these detailed descriptions. In order to avoid obscuring the essence of the present invention, well-known methods, procedures, flows, components and circuits have not been described in detail.

Furthermore, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and that the drawings are not necessarily drawn to scale.

At the same time, it should be understood that in the following description, "circuit" refers to a conductive loop composed of at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected" to another element, or an element/circuit is said to be "connected" between two nodes, it can be directly coupled or connected to the other element or intervening elements or circuits may be present. Connections can be physical, logical, or a combination thereof. In contrast, when an element is referred to as being "directly coupled" or "directly connected to" another element, there are no intervening elements present.

Figure 1 is a schematic structural diagram of an electronic paper handle ring according to an embodiment of the present invention. Figure 2 is a schematic circuit diagram of an electronic paper handle ring according to an embodiment of the present invention. As shown in FIG. 1 , the smart handle billboard based on electronic paper in this embodiment includes a billboard body 1 and an electronic paper component 2 . Among them, the billboard body 1 has a handle part 11 and a receiving part 12 suitable for holding. The electronic paper component 2 has an electronic ink screen 21 and a circuit component 22 that are electrically connected to each other (see Figure 2). The electronic paper component is disposed in the receiving portion 12 .

Figure 2 is a schematic circuit diagram of the electronic paper component of the electronic paper-based smart handle billboard in this embodiment. As shown in FIG. 2 , the electronic paper component 2 includes an electronic ink screen 21 and a circuit component 22 . Among them, the electronic ink display is a screen that uses electronic ink. E-ink screen is also called electronic paper display technology. Electronic ink is a new method and technology that revolutionizes information display. Like most traditional inks, e-ink and the circuitry that changes its color can be printed on many surfaces, from curved plastic, Mylar, paper to cloth. The difference from traditional paper is that electronic ink changes color when powered and can display changing images, like a display on a calculator or mobile phone. There are many small "microcapsules" attached to the surface of the electronic ink screen, which encapsulate negatively charged black particles and positively charged white particles. By changing the charge, the particles of different colors are arranged in an orderly manner, thus presenting a clear black and white image. Visualization. The electronic ink screen is composed of two substrates, which are coated with an electronic ink composed of countless tiny transparent particles. The particles are formed by many black and white particles with positive and negative charges sealed in internal liquid microcapsules. Charged particles of different colors It will move in different directions due to different applied electric fields, showing a black or white effect on the surface of the display screen. In this way, black and white patterns and text like printed matter can be displayed on the surface of "electronic paper", which looks very similar to paper. There is no reflection phenomenon of traditional liquid crystal displays in the sun. At the same time, power is only consumed when the pixel color changes (for example, from black to white). The image on the display screen can still be retained after the power is turned off, so it is very power-saving.

With the development of technology, e-ink displays can also be displayed in color in addition to black and white.

Further, the circuit component 22 includes a display driving circuit 22a and a wireless communication circuit 22b. The display driving circuit 22a is electrically connected to the electronic ink screen 21 and is used to drive the electronic ink screen to display and refresh. The wireless communication circuit 22b is used to wirelessly receive advertising content to be displayed and send it to the display driving circuit.

In this embodiment, the wireless communication circuit 22b includes a Lora communication module 22b1 and an LTE CAT1 communication module 22b2. Lora (Long Range Radio) is a low-power local area network wireless standard created by semtech. The Lora communication module 22b1 is a hardware communication circuit that communicates in compliance with the Lora protocol. The transmission distance of Lora communication module can reach 2-5Km in towns and up to 15Km in suburbs. Its working frequency is the ISM frequency band including 433, 868, 915MHz and other frequency bands. Lora's modulation method is based on spread spectrum technology, a variant of linear modulation spread spectrum (CSS), with forward error correction (FEC) capabilities. Therefore, the Lora communication module has the characteristics of long distance and low power consumption, but its data transmission rate is low. LTE (Long Term Evolution, Long Term Evolution) is the long-term evolution of the UMTS (Universal Mobile Telecommunications System) technical standard developed by 3GPP (The 3rd Generation Partnership Project). LTE CAT1 refers to LTE UE-Category 1, also known as eMTC, or LTE-M. According to the definition of 3GPP, UE-Category is divided into 10 levels from 1 to 10 according to the expected quality of service (QoS, Quility of Service). Different CAT categories correspond to different service qualities. CAT1 aims to serve the Internet of Things and enable low-power and low-cost LTE connectivity. Compared with NB-IoT and 2G modules, CAT1 has advantages in network coverage, speed and latency. Compared with traditional CAT4 modules, it has the advantages of low cost and low power consumption. At the same time, CAT1 is suitable for current home 4G networks and is very suitable for application scenarios that require cost performance, latency, coverage and communication speed.

In this embodiment, the display driving circuit 22a and the wireless communication circuit 22b are controlled by a controller (not shown in the figure) to receive and display data. The electronic paper handle ring of this embodiment may also include a memory (not shown in the figure), which is used to store image data that needs to be rotated.

In this embodiment, in order to reduce power consumption, the wireless communication circuit 22b keeps the Lora communication module 22b1 in a low power consumption state during the working state, and at the same time keeps the LTE CAT1 communication module in a power-off state. As a result, the Lora communication module will periodically try to receive signals to minimize its own power consumption, while the LTE CAT1 communication module will maintain no power consumption at all. The Lora communication module will notify the controller after receiving the notification message, and the controller will further control the LTECAT1 communication module to power on and enter the receiving mode.

Figure 3 is a schematic diagram of a data publishing system applied to subway electronic paper bracelets according to an embodiment of the present invention. As shown in Figure 3, the data publishing system of the embodiment of the present invention includes a data publishing device A installed in a subway station and an electronic paper handle B installed in a subway train car. The e-paper handle B can be used as a handle for passengers on subway trains. At the same time, the e-ink screen of the e-paper handle can be used to display advertisements or notification information. However, the update of advertisements or notification information is a problem that needs to be solved. In this embodiment, the collection of images to be published for subsequent display is delivered to the electronic paper bracelet B through the data publishing device A (or can be called a base station). Each image set to be published includes multiple frames of images. Each frame of image can correspond to different content.

In this embodiment, the data publishing device A may include a controller and a wireless communication device. The wireless communication device may have a first Lora communication module and a first LTE CAT1 communication module. At the same time, the Lora communication module and the LTE CAT1 communication module of the e-paper bracelet can be called the second Lora communication module and the second LTE CAT1 communication module respectively.

The data publishing device A is configured to send a notification message through the first Lora communication module, and in response to the electronic paper bracelet entering the receiving mode, send the image data through the first LTE CAT1 communication module. The electronic paper handle B is configured to keep the second Lora communication module in a low-power working mode and control the second LTE CAT1 communication module to be in a power-off state; and, in response to the second Lora communication module receiving the notification message, Control the second LTE CAT1 communication module to power on and receive image data. Wherein, the image data is image data to be published for display on the electronic ink screen.

In an optional implementation, the electronic paper handle ring is further configured to control the electronic ink screen to instantly display the image data in response to the second LTE CAT1 communication module receiving the image data.

In another optional implementation, the electronic paper handle ring is further configured to, in response to the second LTE CAT1 communication module receiving image data, store the image data into a predetermined memory for subsequent carousel display.

In this embodiment, the data publishing device is further configured to control the first LTE CAT1 communication module to power off after all the image data is sent, and send a completion message through the first Lora communication module. Correspondingly, the electronic paper handle ring is further configured to, in response to receiving the completion message through the second Lora communication module, control the second LTE CAT1 communication module to power off, and control the second Lora communication module to enter low power. consumption mode.

Wherein, the notification message and the completion message are sent in a broadcast or multicast manner. Sending via broadcast or multicast can cover multiple electronic paper bracelets at once, so that data can be quickly and instantly delivered to the electronic paper bracelets on subway trains.

In the embodiment of the present invention, the Lora communication module and the LTE CAT1 communication module are set up. The Lora communication module has low power consumption but low transmission rate, while the LTE CAT1 communication module has high transmission but high power consumption. The Lora communication module is used to monitor notifications. message, and only after receiving the notification message, the LTE CAT1 communication module in the power-off state is activated to receive the image data that needs to be released at a higher transmission rate, thereby minimizing power consumption while ensuring the communication rate. waste, improving the battery life of the e-paper bracelet.

FIG. 4 is a flow chart of an instant data publishing method applied to an electronic paper bracelet according to an embodiment of the present invention. As shown in Figure 4, the method of this embodiment includes:

Step S100: Keep the Lora communication module in a low-power working mode and control the LTE CAT1 communication module to be in a power-off state.

Step S200: In response to the Lora communication module receiving the notification message, control the LTE CAT1 communication module to power on and receive image data.

Wherein, the image data is image data to be published for electronic paper bracelet publishing.

In an optional manner, the method further includes:

Step S300: In response to the LTE CAT1 communication module receiving the image data, control the electronic ink screen of the electronic paper handle to instantly display the image data.

In another optional implementation, the method further includes:

Step S400: In response to the LTE CAT1 communication module receiving the image data, the image data is stored in a predetermined memory for subsequent carousel display.

In the embodiment of the present invention, the Lora communication module and the LTE CAT1 communication module are set up. The Lora communication module has low power consumption but low transmission rate, while the LTE CAT1 communication module has high transmission but high power consumption. The Lora communication module is used to monitor notifications. message, and only after receiving the notification message, the LTE CAT1 communication module in the power-off state is activated to receive the image data that needs to be released at a higher transmission rate, thereby minimizing power consumption while ensuring the communication rate. waste, improving the battery life of the e-paper bracelet.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. The data instant release method applied to the electronic paper handle ring is characterized by comprising the following steps of:

maintaining the Lora communication module in a low-power-consumption working mode, and simultaneously controlling the LTE CAT1 communication module to be in a power-off state;

responding to the received notification message of the Lora communication module, and controlling the LTE CAT1 communication module to be electrified to receive the image data;

responding to the LTE CAT1 communication module to receive image data, and storing the image data into a preset memory for subsequent carousel display;

responding to the condition that the LTE CAT1 communication module receives the image data and stores the image data into a memory, and controlling the LTE CAT1 communication module to be powered off after the Lora communication module receives the data transmission completion message;

wherein the image data is multi-frame image data.

2. The method of claim 1, wherein the image data is to-be-issued image data for electronic paper pull ring issue.

3. The method according to claim 1, wherein the method further comprises:

and in response to the LTE CAT1 communication module receiving the image data, controlling the electronic ink screen of the electronic paper handle ring to display the image data instantly.

4. The data instant release system applied to the electronic paper handle ring is characterized by comprising a data release device and a plurality of electronic paper handle rings; the data release device is provided with a first Lora communication module and a first LTE CAT1 communication module, and the electronic paper handle ring is provided with a second Lora communication module and a second LTE CAT1 communication module;

the data release device is configured to send a notification message through the first Lora communication module and send image data through the first LTE CAT1 communication module in response to the electronic paper handle ring entering a receiving mode;

the electronic paper handle ring is configured to keep the second Lora communication module in a low-power consumption working mode, and simultaneously control the second LTE CAT1 communication module to be in a power-off state; and in response to the second Lora communication module receiving the notification message, controlling the second LTE CAT1 communication module to be electrified to receive the image data;

the electronic paper pull ring is further configured to store the image data to a predetermined memory for subsequent carousel display in response to the second LTE CAT1 communication module receiving the image data;

the electronic paper handle ring second LTE CAT1 communication module receives the image data and stores the image data into the memory, and the second Lora communication module controls the second LTE CAT1 communication module to be powered off after receiving a data transmission completion message sent by the data issuing device;

wherein the image data is multi-frame image data.

5. The system of claim 4, wherein the electronic paper pull ring further comprises an electronic ink screen, the image data being to-be-transmitted image data for display by the electronic ink screen.

6. The system of claim 5, wherein the electronic paper pull ring is further configured to control the electronic ink screen to display the image data on-the-fly in response to the second LTE CAT1 communication module receiving the image data.

7. The system of claim 4, wherein the data distribution device is further configured to control the first LTE CAT1 communication module to power down and send a completion message through the first Lora communication module after the image data is completely transmitted;

the electronic paper pull ring is further configured to control the second LTE CAT1 communication module to power down and the second Lora communication module to enter a low power consumption mode in response to receiving the completion message through the second Lora communication module.

8. The system of claim 7, wherein the notification message and the completion message are sent in a broadcast or multicast manner.