CN207718778U - A kind of wireless and passive electronic table tablet stand system - Google Patents

Abstract

The utility model discloses a wireless passive electronic table card system, which comprises a plurality of electronic table cards, a power supply chassis and content updating equipment; each electronic table card is provided with a receiving coil, an electronic ink display screen, a wireless data communication module and a microprocessor; the power supply chassis is a centralized wireless power supply chassis, which is internally provided with a plurality of sending coils, and an electronic table card placement area is respectively set above each sending coil for placing electronic table cards and performing Wireless power supply; the sending coil in the power supply chassis is connected to the wired power supply to generate an electromagnetic signal. When the communication coil inside the electronic table card senses the electromagnetic signal generated by the sending coil, a current is generated to supply power to the electronic table card; the content update device is set There is a wireless data communication module, and the wireless data communication module performs wireless communication connection with the wireless data communication modules in a plurality of electronic table cards. The utility model has convenient power supply, does not need batteries, and can be used like ordinary paper table cards.

Description

A wireless passive electronic table card system

technical field

The utility model relates to a wireless passive electronic table card system.

Background technique

At present, the electronic table cards in the domestic market are generally powered by batteries, and the battery power is limited, so that the use time of the electronic table cards is limited, and the staff needs to charge them regularly; if the electronic table cards are used a lot, the charging is extremely troublesome and will consume a lot of time and cost. and manpower; and the structure of the electronic table cards on the market is LCD or LED, which consumes a lot of power, resulting in a short use time.

Therefore, be necessary to design a kind of power supply convenient, the electronic table card system that can display for a long time.

Utility model content

The technical problem solved by the utility model is to provide a wireless passive electronic table card system in view of the deficiencies of the prior art, which does not need to use batteries, does not need power supply lines, can be displayed for a long time, and can be used like ordinary paper table cards , easy to operate, low maintenance cost, energy saving and environmental protection.

The technical scheme provided by the utility model is:

A wireless passive electronic table card system, including a plurality of electronic table cards, a power supply chassis and content update equipment (computer, mobile terminal, etc.);

Each electronic table card is provided with a receiving coil, an electronic ink display, a first wireless data communication module and a microprocessor; the electronic ink display and the first wireless data communication module are connected to the microprocessor;

The power supply chassis is a centralized wireless power supply chassis, which is internally provided with a plurality of sending coils, and an electronic table card placement area is respectively arranged above each sending coil for placing the electronic table cards and wirelessly powering them; multiple sending coils The coil and the receiving coils in multiple electronic table cards are in the same medium, and the mutual electromagnetic fields are transmitted to each other through the medium to form coupling; the transmitting coil in the power supply chassis is connected to the wired power supply to generate electromagnetic signals, when the receiving coils inside the electronic table cards When the coil senses the electromagnetic signal generated by the sending coil, a current is generated to supply power to the electronic table cards; through the centralized wireless power supply chassis, the principle of electromagnetic wave induction can be used to wirelessly power multiple electronic table cards at the same time;

The content update device is provided with a man-machine interface, a second wireless data communication module and a processing module, and the man-machine interface and the second wireless data communication module are all connected to the processing module; the second wireless data communication module is connected to a plurality of electronic desks The first wireless data communication module in the card performs wireless communication connection. Edit the display content through the human-computer interaction interface, and send it to the first wireless data communication module in the electronic table card by the second wireless data communication module, and the microprocessor in the electronic table card processes the information received by the first wireless data receiving module , and send it to the electronic ink display screen for display, thereby updating the screen content.

The E-ink screen can still display the picture before the power failure even after the power failure, and it can keep displaying for a long time without power supply, so it does not need power to maintain the display of text or pictures at ordinary times, and only needs power when the screen updates the content, saving power.

Furthermore, two display screen sockets are provided on the internal circuit board of the electronic table card for installing two electronic ink display screens to realize double-sided screen design and simultaneous display on both sides.

Further, an electromagnetic shielding device is provided between the multiple sending coils inside the power supply chassis and around the sending coils.

Further, the power supply chassis adopts a high-power long-distance wireless power supply module such as XKT-801 chip.

Further, the first wireless data communication module and the second wireless data communication module are USB interface wireless transceiver modules, which can simultaneously send data to multiple electronic table cards, with low power consumption, and the longest transmission distance can reach 300- 500 meters.

Beneficial effect:

There is no power battery inside the electronic table card, and there is no working time limit. It can be used like an ordinary paper table card; it has good display effect, full viewing angle, soft vision, no eye damage, no reflection, no radiation, saving a lot of time, cost and manpower and many other advantages.

Description of drawings

Fig. 1 is a schematic diagram of the utility model;

Fig. 2 is the functional block diagram of the electronic table card in the utility model;

Fig. 3 is a functional block diagram of the power supply chassis in the utility model

Fig. 4 is a functional block diagram of the content update device in the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, the utility model discloses a wireless passive electronic table card system, which includes a plurality of electronic table cards, a power supply chassis and content updating equipment;

As shown in Figure 2, each electronic table card is provided with a receiving coil, an electronic ink display screen, a first wireless data communication module and a microprocessor; the electronic ink display screen and the first wireless data communication module are connected to the microprocessor connected;

As shown in Figure 3, the power supply chassis is a centralized wireless power supply chassis, and a plurality of sending coils are arranged inside it, and an electronic table card placement area is respectively arranged above each sending coil for placing the electronic table cards and conducting Wireless power supply; the sending coil in the power supply chassis is connected to the wired power supply to generate electromagnetic signals. When the receiving coil inside the electronic table card senses the electromagnetic signal generated by the sending coil, a current is generated to supply power to the electronic table card; through the centralized wireless power supply chassis, The principle of electromagnetic wave induction can be used to wirelessly power multiple electronic table cards at the same time;

As shown in Figure 4, a man-machine interface, a second wireless data communication module and a processing module are set in the content update device, and the man-machine interface and the second wireless data communication module are all connected to the processing module; the second wireless data communication The module performs wireless communication connection with the first wireless data communication module in the plurality of electronic table cards. Edit the display content through the human-computer interaction interface, and send it to the first wireless data communication module in the electronic table card by the second wireless data communication module, and the microprocessor in the electronic table card processes the information received by the first wireless data receiving module , and send it to the electronic ink display screen for display, thereby updating the screen content.

Further, the electronic ink display screen is an electronic ink screen. The E-Ink screen can still display the screen before the power failure after the power failure, so it does not need power to maintain the display of text or pictures at ordinary times, and only needs power when the screen updates the content, saving power.

Furthermore, two display screen sockets are provided on the internal circuit board of the electronic table card for installing two electronic ink display screens to realize double-sided screen design and simultaneous display on both sides.

Further, an electromagnetic shielding device is provided between the multiple sending coils inside the power supply chassis and around the sending coils. Further, the power supply chassis adopts a high-power long-distance wireless power supply module such as XKT-801 chip.

Further, the first wireless data communication module and the second wireless data communication module are USB interface wireless data transceiver modules, which can simultaneously send data to multiple electronic table cards, with low power consumption, and the longest transmission distance can reach 300 -500 meters.

Claims (5)

1. a kind of wireless and passive electronic table tablet stand system, which is characterized in that including multiple electronic table tablet stands, a power supply chassis and content More new equipment；

It is both provided with receiving coil, electric ink display screen, the first wireless data communication module and Wei Chu in each electronic table tablet stand Manage device；Electric ink display screen and the first wireless data communication module are connected with microprocessor；

The power supply chassis is centralized wireless power chassis, is internally provided with multiple transmit coils, each transmit coil top An electronic table tablet stand rest area is respectively set, wireless power is carried out for placing electronic table tablet stand, and to it；The hair powered in chassis Sending coil is connect with cable power generates electromagnetic signal, and the receiving coil inside electronic table tablet stand senses what transmit coil generated When electromagnetic signal, the power supply of electric current electron table board is generated；

Human-computer interaction interface, the second wireless data communication module and processing module are provided in the content update equipment, it is man-machine Interactive interface and the second wireless data communication module are connected with processing module；Second wireless data communication module and multiple electronics The first wireless data communication module in table board carries out wireless communication connection.

2. wireless and passive electronic table tablet stand system according to claim 1, which is characterized in that the inside electricity of the electronic table tablet stand It is set on the plate of road there are two display screen socket, for installing two electric ink display screens.

3. wireless and passive electronic table tablet stand system according to claim 1, which is characterized in that the power supply inside chassis is multiple Between the transmit coil and periphery of transmit coil is provided with electromagnetic screen.

4. wireless and passive electronic table tablet stand system according to claim 1, which is characterized in that the power supply chassis uses XKT- 801 chips.

5. wireless and passive electronic table tablet stand system according to any one of claims 1 to 4, which is characterized in that described first Wireless data communication module and the second wireless data communication module are USB interface radio receiving transmitting module.