Ink screen table card

Abstract

The utility model relates to the technical field of table cards, and discloses an ink screen table card, which comprises a main control module, an NFC (near field communication) module, a display screen and a power supply, and is characterized in that the main control module is connected with the NFC module, the display screen and the power supply; the power supply is connected with the display screen; the NFC module is used for generating an interrupt signal when the distribution network information is received; the main control module is used for reading network distribution information and networking when receiving the interrupt signal; the main control module is also used for receiving display information issued by the server and sending the display information to the display screen; the main control module is further used for detecting the electric quantity of the power supply and controlling starting or stopping of the power supply. According to the utility model, the NFC is configured with the network name and the password of the ink screen table card, the master control module is used for reading the network distribution information and networking when receiving the interrupt signal, and compared with the related technology, the network distribution time is short, so that the network distribution speed is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of table card, specifically relates to a ink screen table card. BACKGROUND

[0002] The table card is a display card arranged on a conference table, and is mainly used for displaying basic information of conference participants, such as name, position, company, conference table number, conference serial number and the like. The electronic table card is completed by using an electronic mode.

[0003] The table card generally comprises a Bluetooth ink screen table card and a WIFI ink screen table card. After the Bluetooth ink screen table card is connected with a mobile phone through Bluetooth, an image can be sent to only one table card at a time. The WIFI ink screen table card is operated in a timing on-off mode because the WIFI cannot maintain a long connection and operate at low power consumption. The WIFI module is turned on to connect to a network and update data, and then turned off. The above-mentioned operations are repeated, and some table cards even need to be manually turned on and off to connect to the network. The WIFI ink screen table card has a complex network configuration mode. The table card needs to be operated in an AP mode, a mobile phone needs to be connected to the WIFI of the table card, and then the WIFI of a router to which the table card needs to be connected is configured to the table card. After the table card is restarted and switched to a station mode, the table card can be connected to the WIFI of the router. SUMMARY

[0004] Therefore, the utility model provides a ink screen table card to solve the problem of slow sending speed of the ink screen table card.

[0005] The utility model provides a ink screen table card, include: main control module, NFC module, display screen and power, wherein, main control module is connected with NFC module, display screen, power, power is connected with display screen, NFC module is used for when receiving network configuration information, produces interrupt signal, main control module is used for when receiving interrupt signal, reads network configuration information and connects to the network, main control module is still used for receiving the display information of server transmission, and will display information send to display screen, main control module is still used for detecting the electric quantity of power, and control power's start or stop.

[0006] The utility model NFC configuration ink screen table card network name and password, main control module is used for when receiving interrupt signal, reads network configuration information and connects to the network, compared with prior art, network configuration time is short, thereby further improve network configuration speed.

[0007] In an alternative embodiment, the main control module uses a wireless communication method based on tcp protocol to establish a connection with the server.

[0008] The utility model uses tcp protocol to communicate with the server, supports concurrent sending of images to hundreds of table cards and refreshing.

[0009] In an alternative embodiment, the wireless communication mode is WIFI.

[0010] The utility model adopts WIFI communication, because WIFI communication has high bandwidth, extremely fast speed of issue, for the same number of table card, the speed of issue is faster than bluetooth issue hundred times.

[0011] In an alternative embodiment, the master control module comprises: a master control chip and an antenna matching circuit, wherein the master control chip is connected with the NFC module, the display screen, the power supply and the antenna matching circuit; the antenna matching circuit is connected with the server through a wireless communication mode.

[0012] In an alternative embodiment, the master control chip is a low-power new type, and the model thereof is DA16200.

[0013] In the utility model, WIFI low-power scheme is adopted, long link with the server is kept, and low-power operation is kept, not only the demand of long time work is met, and the demand of real time update is met.

[0014] In an alternative embodiment, the NFC module comprises: an NFC chip, and the NFC chip communicates with the master control module through an IIC protocol.

[0015] In an alternative embodiment, the model of the NFC chip is FM11NT082DI.

[0016] In an alternative embodiment, the power supply comprises: a voltage conversion circuit, a first power supply, a second power supply, a first switch circuit and a second switch circuit, wherein the input end of the voltage conversion circuit is connected with the first power supply and the second power supply through the first switch circuit; the output end of the voltage conversion circuit and the second power supply are connected with the display screen through the second switch circuit; the first power supply and the second power supply are redundant standby. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the component diagram of the ink screen table card according to the embodiment of the utility model;

[0019] Figure 2 It is the specific circuit structure diagram of the master control module according to the embodiment of the utility model;

[0020] Figure 3 is a specific circuit structure diagram of the NFC module according to the embodiment of the present application;

[0021] Figure 4 is a specific circuit structure diagram of the power supply according to the embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In the description of the present application, it should be noted that the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements, or it can be wireless connection, or it can be wired connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0026] At present, the ink screen table card mainly has two display data issuing modes, namely, using Bluetooth issuing and using WIFI issuing. Both have advantages and disadvantages, which are as follows:

[0027] (1) The data issuing speed of the Bluetooth ink screen table card is limited by the bandwidth of Bluetooth (1MHz or 2MHz), and the picture issuing speed is slow. Due to the characteristics of Bluetooth, a large number of simultaneous connections cannot be performed, so only one table card can be refreshed at a time;

[0028] (2) Bluetooth cannot be used remotely, but can only be used in close range, so it cannot meet the requirements of network remote operation. If this requirement is to be met, a Bluetooth gateway needs to be used in combination.

[0029] (3) Due to the WIFI characteristics, it has always been impossible to achieve low power consumption, and the electronic ink screen table card requires working time to be more than 1 year, and the general WIFI module cannot meet this requirement. The table card equipped with the general WIFI module cannot also meet the requirement.

[0030] (4) WIFI ink screen table card, the network configuration method is complex, the table card needs to work in AP mode first, the mobile phone searches and connects to the WIFI of the table card, and then the WIFI of the router to be connected by the table card is configured to the table card. The table card restarts and switches to the station mode to connect to the router WIFI. This greatly increases the difficulty of use and reduces the experience of users and the speed is extremely slow. Only one by one can be operated in sequence. If there are 100 tables, how much time does it take?

[0031] At present, the WIFI ink screen electronic table card due to the above (2) reasons, also wants to be able to maintain long endurance, all adopt intermittent working mode for WIFI module, that is, open networking update every interval, then close, then interval, open again. This seems to reduce power consumption, but it loses real-time. That is, the table card must wait for the time to update the content, and the table card can only update after networking. The length of this time will also affect the power consumption, so this way is very chicken ribs and cannot meet the real-time updating needs of customers.

[0032] Based on this, an ink screen table card is provided in the embodiment, as shown in Figure 1 The ink screen table card comprises a main control module, an NFC module, a display screen and a power supply. The main control module is connected with the NFC module, the display screen and the power supply. The power supply is connected with the display screen.

[0033] Specifically, the NFC module is used to generate an interrupt signal when receiving network configuration information. The main control module is used to read the network configuration information and connect to the network when receiving the interrupt signal. The main control module is also used to receive display information sent by a server and send the display information to the display screen.

[0034] Specifically, the specific way of NFC network configuration is to set network configuration information on a mobile terminal with NFC function. When the mobile terminal is pasted to the NFC indication position of the table card, the NFC module can recognize the network configuration information and immediately generate an interrupt signal. The main control module reads the network configuration information and connects to the network after receiving the interrupt signal. After the main control module receives the interrupt signal, the table card will automatically restart and connect to the configured network.

[0035] Optionally, the NFC module configuration information includes: the name and password of the network, the number of the table card, the user ID and other information.

[0036] Optionally, the master module adopts a wireless communication mode based on a TCP protocol to establish a connection with the server. The wireless communication mode is WIFI.

[0037] Optionally, the master module is further configured to detect the power of the power supply and control the start or stop of the power supply. The master module is internally provided with a power management unit capable of charge detection and power detection, which can detect the charging state and the battery power and report the same to the server for display through an APP. At the same time, the power of the ink screen is turned off at the end of the screen brushing to reduce power consumption. The power detection function can also be separately provided with a charging chip, which will not be described here.

[0038] Specifically, after the master module is connected to the network, the server sends display information to the master module, and the master module controls the display screen to display the corresponding display content, thereby realizing the support of remote picture issuing and not being limited to the site.

[0039] In some optional embodiments, the master module comprises a master chip and a filter circuit, wherein the master chip is connected with the NFC module, the display screen, the power supply and the antenna matching circuit; the antenna matching circuit is connected with the server through a wireless communication mode.

[0040] Optionally, the master chip is a new low-power chip with a model of DA16200, and the specific structure thereof is shown in Figure 2 After the chip is connected to the network, the average power consumption is 200uA, which is very low and can meet the low-power requirement when maintaining a long link. When the server has data to issue, the response time is <1s, which is very suitable for low-power table card requirements.

[0041] Specifically, Figure 2 The antenna matching circuit is composed of inductors L1 and L2, and capacitors C8, C9 and C10.

[0042] Specifically, Figure 2 The master chip has the following functions as shown in

[0043] 1. The master chip has network communication function and can be connected with a TCP network server. The server can issue pictures to be displayed by the table card; 2. The master chip has OTA upgrade function and can be upgraded when the table card has software to be upgraded; 3. The master chip has NFC function and can flexibly configure WIFI network information, table card ID and other information; 4. The master chip has charge detection and power detection function, which can detect the charging state and the battery power and report the same to the server for display through an APP; 5. The master chip has the function of controlling the ink screen to display pictures, which can drive the ink screen to display pictures.

[0044] In some alternative embodiments, the NFC module comprises: an NFC chip, which communicates with the master module through an IIC protocol. Optionally, the model of the NFC chip is FM11NT082DI.

[0045] Specifically, the user information such as WIFI name and WIFI password is configured through NFC, which is convenient and fast. The specific structure of the NFC module is as shown in Figure 3 The NFC module adopts FM11NT082DI, and the NFC chip communicates with the DA16200 through IIC. The chip supports reading and writing, and the mobile phone can conveniently read and write internal data. After the mobile phone writes the network configuration information into the NFC chip, the chip immediately triggers the DA16200 to read the data and save the data. The DA16200 immediately configures the network with the information, without waiting for the network connection to be successful, and directly configures the next device.

[0046] Figure 3 When the mobile phone NFC is close to the ink screen table card, the GPIOC6_NFC_IRQ generates an interrupt signal, reminding the master to read the NFC information. The GPIOA0_I2C_SDA and the GPIOA1_I2C_SCL are signal lines responsible for IIC communication with the master chip. The master chip obtains the configured NFC information through IIC or writes the information of the ink screen table card into the NFC chip for the mobile phone to read. The GPIOC7_NFC_CS is a chip selection signal for IIC communication. The master chip needs to enable the chip selection signal before IIC communication with the NFC chip.

[0047] In some alternative embodiments, the power supply comprises: a voltage conversion circuit, a first power supply, a second power supply, a first switch circuit and a second switch circuit, wherein the input end of the voltage conversion circuit is connected with the first power supply and the second power supply through the first switch circuit; the output end of the voltage conversion circuit and the second power supply are connected with the display screen through the second switch circuit; and the first power supply and the second power supply are redundant backups for each other.

[0048] Specifically, the specific circuit structure of the power supply is as shown in Figure 4 The VBUS end is connected with the first power supply, the VBAT end is connected with the second power supply, the VCC_LCD end is connected with the display screen, the first switch circuit mainly comprises a MOS tube Q1, the second switch circuit mainly comprises a MOS tube Q9, and the voltage conversion circuit only comprises a chip U5. The enable end EN of the chip U5 is connected with the master chip. The master chip controls the opening or closing of the power supply of the display screen by controlling the high or low level of this pin, for example: the ink screen power supply is turned on when the EN end receives a high level, and the ink screen power supply is turned off when the EN end receives a low level.

[0049] Optionally, Figure 4The first power supply can be a direct current power supply, for example, a switching power supply, and the second power supply can be a battery.

[0050] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. An ink screen name plate, characterized by, The application relates to a power supply device for a network configuration, which comprises a main control module, an NFC module, a display screen and a power supply, wherein the main control module is connected with the NFC module, the display screen and the power supply; the power supply is connected with the display screen; the NFC module is used for generating an interrupt signal when receiving network configuration information; the main control module is used for reading the network configuration information and networking when receiving the interrupt signal; the main control module is further used for receiving display information sent by a server and sending the display information to the display screen; and the main control module is further used for detecting the power of the power supply and controlling the start or stop of the power supply. The main control module adopts a wireless communication mode based on a TCP protocol to establish a connection with the server. The wireless communication mode is WIFI. The main control module comprises a main control chip and an antenna matching circuit, wherein the main control chip is connected with the NFC module, the display screen, the power supply and the antenna matching circuit; the antenna matching circuit establishes a connection with the server through a wireless communication mode. The main control chip is a low-power new type, and the model is DA16200. The NFC module comprises an NFC chip, which communicates with the main control module through an IIC protocol. The model of the NFC chip is FM11NT082DI. The power supply comprises a voltage conversion circuit, a first power supply, a second power supply, a first switch circuit and a second switch circuit, wherein the input end of the voltage conversion circuit is connected with the first power supply and the second power supply through the first switch circuit; the output end of the voltage conversion circuit and the second power supply are connected with the display screen through the second switch circuit; and the first power supply and the second power supply are mutually redundant backups.

2. Ink-slate table card according to claim 1, characterized in that ​ 3. Ink-slate table card according to claim 2, characterized in that ​ 4. Ink-slate table card according to claim 2, characterized in that ​ ​ 5. Ink-slate table card according to claim 4, characterized in that ​ 6. The ink screen table plaque of claim 1 wherein, ​ 7. Ink-slate table card according to claim 6, characterized in that ​ 8. The ink screen table plaque of claim 1 wherein, ​ ​ ​ ​

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