Crownbid Technology invites you to Tangshan 2017 China Preschool Education Supplies Expo
Summary : The 2017 China Preschool Education Summit and China Preschool Education Supplies Expo was held from November 10 to 12 at the Nanhu International Convention and Exhibition Center in Tangshan City. Shenzhen Guobiaotech Development Co., Ltd. is at booth A1602. We look forward to your arrival!
2017-11-10
The 2017 China Preschool Education Summit and China Preschool Education Supplies Expo was held from November 10-12 at the Nanhu International Convention and Exhibition Center in Tangshan. Shenzhen Guobiao Technology Development Co., Ltd. is at booth A1602, looking forward to your visit!
At this exhibition, the wall-mounted all-in-one machine from Guantong Technology attracted the most attention, with visitors stopping to watch the live demonstration.
1. The wall-mounted steel structure meets anti-damage requirements. The integrated design can be installed inside or on the side of the blackboard, highly integrating the computer system, central control system, audio amplifier system, multifunctional wireless microphone, and physical display system. It supports remote network management. The chassis is equipped with an external card-swipe electronic lock. The machine can be turned on and off by swiping a card, ensuring safety and anti-theft. For equipment maintenance, there is no need to remove the blackboard or the entire machine; simply open the corresponding panel to replace internal components.
2. Computer System: The computer should have a high-configuration H61/H81 or above motherboard, integrated graphics card, sound card, and gigabit network card; processor Intel i5; 4G DDR3 memory; 500G hard drive, with standard wireless keyboard and mouse.
3. The central control system panel contains a 5-inch industrial LCD screen, which can directly display the operating status of each system in the all-in-one machine. The central control panel has a mechanical button for computer restart; it has a Bluetooth frequency band signal display screen and adjustment keys, completely avoiding signal interference. The central control panel is designed with a door lock structure, ensuring that the display screen and buttons are not exposed when not in operation, preventing damage. (On-site demonstration)
4. To extend the service life of the central control panel buttons, touch-type buttons are required (mechanical membrane buttons are prohibited); support one-key system power on/off; support independent projector on/off, screen up/down, document camera on/off, computer reset, and support independent computer on/off. Support multi-language selection, touch-type volume adjustment, and one-key mute function; one-key switching between the built-in computer and external laptop signals.
5. Whole machine interface: To facilitate installation and teacher use, it is required to have 10 USB interfaces (including two 3.0); 3 VGA inputs; 1 HDMI input; 2 2.4G/5.8G wireless microphones; 2 6.35 wired MIC inputs; 1 public address; 1 audio/video recording output (3.5+VGA); 3 VGA outputs; supports LCD display; 2 serial ports (projector + control), supports TF (Micro SD) card MP3 format playback function.
6. Built-in independent audio amplifier system, built-in 40W integrated speaker, 4.5-inch woofer + 2-inch tweeter, to enhance sound effects when no external speakers are connected; built-in one 70-110V linear campus broadcast audio input interface; Built-in amplifier output power 2×30W.
7. Standard multi-function 2.4G Bluetooth wireless microphone, which can realize one-key power on/off and one-key restore wireless remote control functions for the all-in-one machine, with transmission distance ≥20M, talk time ≥8 hours, and supports volume adjustment; With laser pointer including electronic pointer function, unique PPT page turning function, and can be remotely controlled via wireless microphone to achieve one-key black screen function; built-in high-sensitivity dual pickup microphones, with male and female voice timbre switching function, to collect sound sources of all frequency bands, ensuring no explanation content is missed. Includes LCD display, which can show volume, battery level, charging status, and channel information. With 1 channel 3.5mm microphone input jack, 1 channel 3.5mm headphone output jack, USB interface for charging and data communication, upgrade management operations, wireless microphone reserves custom C1, C2, C3, button functions can be expanded into shortcut keys to achieve multi-window free switching, one-key close current window, one-key close computer. (Live demonstration)
8. Power supply part: The power input device includes overvoltage protection, and requires a top-mounted projector power output interface.
9. Frequency display stand image sensor: 1/3 inch CMOS color sensor; Image pixels: 5 million pixels; Opening method: Advanced hydraulic pull rod design, with built-in hidden handle; Light source: Adopting 10+1 supplementary light design, In addition to the 10 LED lights equipped on the display stand arm, there is 1 auxiliary light source at the lens, which completely avoids polarized light caused by a single light source, with switch control and three-level adjustable light brightness. (Live demonstration)
10. The integrated machine display stand adopts a 90-degree + 270-degree flip shooting design, with autofocus, capable of capturing images from various angles, suitable for physical display or teaching scene display, supporting full shooting of books, notes, homework books, and test papers, The detachable USB2.0 interface cable is convenient for disassembly and maintenance. (Live demonstration)
11. The software has functional modules such as display stand, scanning, comparative teaching, recording, and one-click desktop, facilitating switching between various functions.
12. Physical display: Supports 1:1 size and full-screen display. Automatically adjusts white balance and exposure dynamics. Has whiteboard annotation tools with selectable line colors and thickness, supports simultaneous zoom in and out of the displayed image and annotations, dynamic real-time rotation, supports one-key screen lock to freeze the image, convenient for teaching display. (Live demonstration)
13. Image scanning management: Customize the image storage path, perform OCR recognition on scanned images for re-editing and save as DOC, TXT and other files, support one-key binding or unbinding of captured images into albums, support saving in PDF format or synthesizing PDF courseware. (Live demonstration)
14. Supports 1, 2, 4 split-screen comparison teaching function, can open multiple images simultaneously, call local images or camera photos, and can annotate, zoom in, zoom out, etc. on each screen individually.
15. Video Recording: One-click activation of the recording function, with selectable video size and target. It can record the teacher's operations on the whiteboard and document camera during class, supporting synchronized audio and video recording.

Outdoor Mobile Teaching Amplification System A New Teaching Experience