Overview
SMS business of GSM network is widely used with matured techniques. GSM Receiver Dedicated for LED Electronic Display developed by this company is mainly composed of the dedicated GSM module at industrial grade and a hi-performance processor, it’s a standard equipment that can realize wireless networking by SMS service functions of GSM network and long-distance (places within the coverage of GSM network) data transmission. It can support digital, letter and Chinese transmission, the data is transmitted in the form of ASCII codes and international standard codes of Chinese characters, expedient to connect with other device. On this basis, this company has developed GSM Wireless Electronic Information Screen with the following unique strong points compared with the conventional electronic displays:
(1) Information Sending: The contents of conventional electronic displays are sent by the data lines of computers, and information can only be sent in the immovable computers. While the contents of GSM Wireless Electronic Information Screen may be sent by on-line computers, dedicated computer transmitter modules and short message of cell phones, so the message may be transmitted without any limitation to time and space.
(2) Display modes: The conventional electronic displays can only regularly display the message sent by the computes connected to them. However, GSM Wireless Electronic Information Screen can receive message at any time, and can define the duration and frequency of display for every message.
(3) Distance control: The conventional electronic displays can only be used within short distances, generally only tens of meters, while GSM Wireless Electronic Information Screen can be used in the towns and countries across the country, so long as they are covered by GSM network, and not limited to distance and positions. Technical and Functional Characteristics of LED displays
1.The information dissemination center sends the information to be displayed by GSM/GPRS or CDMA wireless mobile network. As communications are borne by GSM/GPRS or CDMA mobile network, so the positions of LED displays may be moved (such as in the buses), or be used in other places (roaming).
2. As it needs no such media as optic cable or telecommunication cable, etc., so it can greatly reduce the engineering cost. The information dissemination center can adopt one-point-to-multiple-points group transmit mode (for thousands of LED screens) (in the form of TCP or UDP).
3. This screen character library is put inside the screen, so that the data flow of telecommunications will become relatively little (GSM/GPRS or CDMA mode is charged as per the flow).
4. Outstanding effect: It applies the dynamic scanning technique to ensure the stable images, free of noise, clear image, vivid and diversified animation
5. Abundant contents: It can display texts, tables and charts.
6. Flexible mode: The users may arrange the display modes at their free wills;
7. Quality assurance: It is made from luminescent material imported from abroad, hi-qualified IC and heavy-duty power supply without any noise.
8. Large contents of information: The information display will not be restricted, and the files contenting tens of thousands of texts may be sent and display once, such as the information of advertisement, notices and news, etc.;
9. Handy maintenance: The modular design and installation make the maintenance of it very handy. (Without the need to pave optic cable or telecommunication cable, so the installation positions of LED displays are not so limited).
Application of wireless information LED display system
As a new information carrier, wireless information dissemination display system is promising with expansive purposes, and may be widely used for the departments and industries like government, meteorology, business, traffic, finance, food and beverage, recreation, cinemas, real estate, travel, medication, literature, sports and transportation, and the like.
1. Used for the propaganda of governmental commands
The wireless information displays will be hanged inside the halls of governmental office buildings to herald the governmental commands, news, weather information and the codes of conducts for the civil servants to the civil servants everyday; or used for legal publicity, etc.
2. Application in the traffic advertisement
Buses are the public traffic means in cities and will transport a lot of passengers every day. The large and medium-sized cities will have hundreds to thousands of buses that will transport millions of passengers every day. Therefore, buses are the people-intensive places, the wireless information displays may be installed in the buses and the mobile communications will use it for commercials, news, weather forecast, movies forecast, information for stock, sports lottery, welfare lottery, football lottery, bus stop introduction and service introduction, etc. It can be paid with the service cost and the advertising cost, and it may be side to achieve both benefits.
The information dissemination at the street intersections, intersections at the freeways and the hazardous intersections may realize the free wireless maintenance of information dissemination system, which can cut down the cost of whole system.
