Principle and design scheme of full-color LED human body interactive floor tile screen(二)

Views: 10     Author: Site Editor     Publish Time: 2022-04-20      Origin: Site

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4. Offline control mode of LED interactive floor tile screen


When the off-line control mode is adopted, the off-line controller acts as a data processor. On the one hand, it needs to receive the information transmitted by all sensor detection units, know the triggered floor tile screen position through data fusion processing, and then read the data files stored in mobile storage devices such as CF card and SD card to realize the corresponding effect display. The design of off-line controller is composed of single chip microcomputer with strong data processing ability and its peripheral circuit.


5. Ethernet online control mode of LED interactive floor tile screen


When using Ethernet online control mode, the calculator plays the role of data processor. Because the computer has more powerful data processing ability, this control mode can modify the display effect at any time and realize unified monitoring of large-scale stage in real time. The module can be expanded in a cascade way, which has great advantages in the engineering application of large-scale interactive floor tile screen.


led display board


6. Wireless distributed control mode of LED interactive floor tile screen


The design method of interactive tile screen system based on wireless distributed control, compared with the previous system design, the control method works wirelessly and saves the trouble of field wiring. At the same time, distributed control is adopted to disperse the work of data processing part into the control processors of each tile screen, and the data processing part is completed by these processors. Therefore, the main controller part does not need strong data processing ability, In large-scale applications, it is not necessary to use the computer as the data processing center. This control method can greatly reduce the system design cost.


7. The working process and principle of the floor tile screen system with wireless distributed control are described as follows


After the sensing point of the floor tile screen is triggered, the sub control connected to it will send the position ID information of the trigger point to the main control in a wireless manner; After receiving the location information, the master control synchronizes the location information to all sub controls through broadcasting; The sub control will transmit the information to the processor inside each tile screen, so each tile screen module will automatically calculate the position and distance information between itself and the trigger point, and then judge the display effect that should be displayed; The whole system has a unified time benchmark through a special synchronization frame, so each tile screen module can accurately calculate when it should display the corresponding effect, and then realize the seamless connection and display of the whole trigger effect.


outdoor led display screen


8. Interactive led flooring summary


(1) The off-line control mode is mainly used for desktop interactive induction due to the limited data processing capacity of the main controller, which is suitable for relatively small applications such as bar counter, KTV room counter and so on.


(2) Ethernet online control mode can be applied to large-scale stage control and other occasions. Due to the use of computer as the data processing center, this control mode can easily modify the display effect at any time, and can realize unified monitoring of large-scale stage in real time.


(3) Wireless distributed control mode is different from the above two wired data transmission modes. This method realizes key data transmission through wireless. In practical engineering application, it not only improves the layout efficiency of the site, but also reduces the labor cost and wire cost, which has more obvious advantages in large-scale applications.


At the same time, in terms of data processing, different from the above two centralized processing methods, the wireless distributed control mode disperses the work of the data processing part into the control processors of each floor tile screen, and these processors cooperate to complete the display of the effect. Therefore, the main controller does not need strong data processing capacity, and it does not need to use the computer as the data processing center in large-scale stage applications, Therefore, the application cost of the whole system can be further reduced


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