CN212181906U

CN212181906U - Wireless electronic ink screen notepad

Info

Publication number: CN212181906U
Application number: CN202021199005.9U
Authority: CN
Inventors: 蒋金龙; 张国琴; 郝英琦; 上官福仲; 马佳琪
Original assignee: Zhejiang University of Water Resources and Electric Power
Current assignee: Zhejiang University of Water Resources and Electric Power
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2020-12-18
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a wireless electronic ink screen notepad, which comprises a display, a wireless communication module, a power supply, a wireless router and a terminal, wherein the terminal, the wireless router, the wireless communication module and the display are connected in sequence, and display information is transmitted to the display through the wireless router and the wireless communication module to be displayed through the terminal; the wireless communication module comprises an ESP-12E module for data compiling, and the data compiled by the wireless communication module is transmitted to the display through a flat cable; the power supply supplies power to the wireless communication module and the display; the display comprises a black and white ink screen. The utility model discloses a terminal transmission needs the content display as the memo on the ink screen, and it changes at any time to erase and write at any time, replaces traditional paper, and is energy-concerving and environment-protective, longe-lived.

Description

Wireless electronic ink screen notepad

Technical Field

The utility model belongs to the display field, concretely relates to wireless electron ink screen note book.

Background

The traditional display modes comprise LEDs, LCDs and the like, which are widely applied to various fields, but have the fatal defects that the display is required to consume power and the power consumption is relatively high. The electronic ink screen has many advantages, the most obvious of which is that the power is saved, and as long as the displayed content is not updated, the power is not consumed; secondly, the comfort of reading and the other display modes cannot be compared with the prior art. The electronic ink screen is used as a small blackboard for domestic information transmission, which is beautiful and practical. With the pace of life increasing, many people prefer to place notes in conspicuous places as memos. But the paper memo is neither environmental protection nor uneconomic, and this design just can be fine solution this problem, and the ink screen can not consume the electric energy when showing, just can consume power when updating the content, just so can place the memorandum in the position that shows the eye after updating every time, makes things convenient for people to look over.

SUMMERY OF THE UTILITY MODEL

In view of the technical problem who exists above, the utility model is used for a wireless electron ink screen note book is provided, following technical scheme is adopted:

a wireless electronic ink screen notepad comprises a display, a wireless communication module, a power supply, a wireless router and a terminal, wherein,

the terminal, the wireless router, the wireless communication module and the display are sequentially connected, and display information is transmitted to the display through the terminal, the wireless router and the wireless communication module to be displayed; the wireless communication module comprises an ESP-12E module for data compiling, and the data compiled by the wireless communication module is transmitted to the display through a flat cable; the power supply supplies power to the wireless communication module and the display; the display comprises a black and white ink screen;

three pins of GPIO0, GPIO2 and EN of the ESP-12E module are connected with 3.3V through a resistor of 10k omega, the potentials of the three pins are high potentials, the ESP-12E module is set in a FLASH BOOT mode, a reset pin NRST is connected with 3.3V through a resistor of 10k omega, meanwhile, the NRST pin is connected with the ground through a resistor of 470 omega and a button, the button is pressed for resetting, the ESP-12E module is connected with a display through six pins of GPIO2, GPIO4, GPIO5, GPIO13, GPIO14 and GPIO15, the GPIO5 is used as an input, and the working condition of the display is received; GPIO2 is output to reset the display; GPIO4 is used for reading and writing selection of the display; GPIO13 pin output data; a GPIO14 pin provides a clock signal; and a GPIO15 pin is used for chip selection.

Preferably, the wireless router exchanges information with the terminal through a TCP/IP protocol.

Preferably, the wireless router performs data transmission with the wireless communication module through IEEE802.11 series protocols.

Preferably, the flat cable is in an SPI mode, and has 24 feet, and the distance between every two feet is 0.5 mm.

Preferably, the power supply comprises the AMS1117 chip.

Adopt the utility model discloses following beneficial effect has at least: although the existing ink screen has very low power consumption and does not consume energy when displaying, the refreshing time of the ink screen is longer. And the utility model discloses a wireless router and wireless communication module's setting, the ESP-12E of adoption is based on ESP8266 WIFI chip, and inside including not processing unit, based on IEEE802.11B \ G \ N agreement and TCP \ IP agreement, can handle the conversion rapidly and transmit for the ink screen and show to the data that needs the demonstration that the terminal sent to can also carry out other configurations according to the demand.

Drawings

FIG. 1 is a block diagram of a wireless electronic ink screen notepad according to an embodiment of the present invention;

FIG. 2 is a schematic circuit diagram of a display of a wireless electronic ink screen notepad according to an embodiment of the present invention;

FIG. 3 is a schematic circuit diagram of a wireless communication module of the wireless electronic ink screen notepad according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a power circuit of the wireless electronic ink screen notepad according to the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, the present invention discloses a wireless electronic ink screen notepad, comprising a display 10, a wireless communication module 20, a power supply 30, a wireless router 40 and a terminal 50, wherein,

the terminal 50, the wireless router 40, the wireless communication module 20 and the display 10 are connected in sequence, and display information is transmitted to the display 10 through the terminal 50, the wireless router 40 and the wireless communication module 20 and displayed; the wireless communication module 20 comprises an ESP-12E module for data compiling, and the data compiled by the wireless communication module 20 is transmitted to the display 10 through a flat cable; the power supply 30 supplies power to the wireless communication module 20 and the display 10; the display 10 comprises a black and white ink screen.

In a particular embodiment, wireless router 40 exchanges information with terminal 50 via the TCP/IP protocol.

The wireless router 40 performs data transmission with the wireless communication module 20 through IEEE802.11 series protocols.

The terminal 50 is a mobile phone or a computer.

Example 2

Referring to fig. 3, which is a schematic circuit diagram of the wireless communication module 20, three pins GPIO0, GPIO2 and EN of the ESP-12E module are connected to 3.3V through a 10k Ω resistor, the potentials of the three pins are high, the ESP-12E module is set in FLASH BOOT mode, the reset pin NRST is connected to 3.3V through a 10k Ω resistor, the NRST pin is connected to ground through a 470 Ω resistor and a button, the button is pressed to reset, the ESP-12E module is connected to the display 10 through six pins GPIO2, GPIO4, GPIO5, GPIO13, GPIO14 and GPIO15, the GPIO5 is used as input, and the display 10 is received; GPIO2 is an output to reset the display 10; GPIO4 performs read-write selection for the display 10; GPIO13 pin output data; a GPIO14 pin provides a clock signal; and a GPIO15 pin is used for chip selection.

Example 3

Referring to fig. 2, which is a schematic circuit diagram of the display 10, the display 10 includes a 4.2 inch black-and-white ink screen, and the bus is SPI type, having 24 pins, and a distance between every two pins is 0.5 mm. The lithium battery is 5V, the voltage of the lithium battery is reduced to 3.3V by the aid of the AMS1117 forward low-voltage-drop voltage stabilizer of the power supply 30, the voltage is sent to a PREVGH pin of the ink screen by the diode D3 after the voltage of the 5V is reduced to 3.3V, the ink screen is damaged due to sudden change of current, therefore, the 3.3V voltage is connected into the ink screen through the inductor L1 of 60mH, and the diode D3 is arranged between the inductor and the ink screen to prevent the current from flowing backwards. The PREVGL pin of the ink screen passes through a diode D2, then the current passes through a capacitor C2 of 104 to a CMOS Q1 and then reaches the low potential, 10 pins in the lead-out flat cable of the ink screen are grounded through a capacitor 105, the left part in the figure 2 is a driving circuit of the ink screen, the power is mainly amplified through the CMOS tube of the SiL304BDL, and the boosted voltage is sent to PREVGL and PREVGH to supply power to the ink screen; the part on the right is the connection pin of ink screen, each pin function: BUSY is the service condition of the ink screen, and whether the ink screen is refreshed or not is judged through the feedback of the BUSY; RST is an ink screen reset signal, and the low level is effective; D/C is a data/command pin, high level is data, low level is command, and mainly selects reading and writing; CS is a chip selection pin, and the low level is effective; SCLK is SPI serial port communication clock signal line; the SDI is an SPI serial port communication data signal line.

Example 4

Referring to FIG. 4, a schematic diagram of the power supply 30 includes the AMS1117 chip. Because the ESP-12E module in the wireless communication module 20 uses the 3.3V power supply 30, the 5V power supply 30 of the lithium battery needs to be converted into the 3.3V power supply 30, and the AMS1117 is a forward low-voltage drop regulator, which is suitable for battery power supply, can ensure the stability of current, and can ensure the core chip safety to the greatest extent.

It is to be understood that the exemplary embodiments described herein are illustrative and not restrictive. While one or more embodiments of the present invention have been illustrated in the accompanying drawings, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A wireless electronic ink screen notepad is characterized in that it comprises a display, a wireless communication module, a power supply, a wireless router and a terminal, wherein,

2. The wireless electronic ink screen notepad of claim 1, wherein said wireless router exchanges information with the terminal via TCP/IP protocol.

3. The wireless electronic ink screen notepad of claim 1 wherein said wireless router communicates data with said wireless communication module via IEEE802.11 series protocols.

4. The wireless electronic ink screen notepad of claim 1, wherein said ribbon is SPI type, having 24 feet in total, and the distance between every two feet is 0.5 mm.

5. The wireless electronic ink screen notepad of claim 1 wherein said power source comprises the AMS1117 chip.