CN204883679U

CN204883679U - Adopt wireless LED screen controlling means of embedded script 3G4G module realization

Info

Publication number: CN204883679U
Application number: CN201520670308.7U
Authority: CN
Inventors: 夏华
Original assignee: Danyang Luntu Electronic Technology Co Ltd
Current assignee: LOGI-IOT TECH (GUANGZHOU) Co.,Ltd.
Priority date: 2015-08-31
Filing date: 2015-08-31
Publication date: 2015-12-16
Anticipated expiration: 2025-08-31

Abstract

The utility model relates to an electronic communication's technical field, especially an adopt wireless LED screen controlling means of embedded script 3G4G module realization. Its 3G4G module and LED display screen that mainly includes embedded script, the 3G4G module of embedded script mainly comprises RF radio frequency module, FLASH memory module, RAM memory module and BB baseband, the BB baseband mainly comprises RTOS real -time operating system module, user's script program module, script interpreter module, AT instruction set module, 3G4G protocol stack module and general input output port IO. After having adopted the device, when reducing the system design complexity, also the cost is reduced saves space, improves the integrated level of product.

Description

A kind of wireless LED screen control device adopting embedded script 3G/4G module to realize

Technical field

The utility model relates to the technical field of electronic communication, particularly a kind of wireless LED screen control device adopting embedded script 3G/4G module to realize.

Background technology

Wireless LED screen control device is normally made up of wireless LED screen control card, wireless LED screen control card, is that LED display receives data by wireless communication module, and is converted to a kind of control device of applicable display data on the screen.It adopts 3G/4G module as data transmission unit, is connected with MCU (microprocessor unit, lower same).MCU is by AT command operating 3G/4G module, receive data, then store, and be converted to the data of applicable screen display, be pushed to screen driver circuit to get on, the LED being controlled LED screen by screen driver circuit (scanning control circuit) flickers, to realize the display of word or graphical information.

In existing wireless LED screen control card, data are entering screen driver circuit, namely before scanning control circuit, need to receive and change through MCU the data that 3G/4G module transmits, then the process that the program in FLASH, character library and display data message carry out data is called, send into data line and address wire that scanning control circuit removes to control LED display curtain again, information is shown on screen.Such project organization more complicated, need to adopt multiple circuit unit to carry out practical function, cost compare is high, and area occupied is also large, makes to be restricted in the application that some are higher to space requirement.

Utility model content

The utility model technical issues that need to address are traditional problems that wireless LED screen control card project organization is complicated, cost is high, floor area is large, some application scenarios high to space requirement are restricted.

For solving the problems of the technologies described above, the utility model provides a kind of wireless LED screen control device of the 3G/4G module based on embedded script, mainly comprises 3G/4G module and the LED display of embedded script; The output terminal of the 3G/4G module of embedded script is connected with LED display; The 3G/4G module of described embedded script forms primarily of RF radio-frequency module, FLASH memory module, RAM memory module and BB base band; The output terminal of described RF radio-frequency module, FLASH memory module and RAM memory module is all connected to BB base band; Described BB base band forms primarily of RTOS real time operating system module, user's script routine module, script interpreter module, AT command set module, 3G/4G protocol stack module and general input/output port I/O; Described user's script routine module, script interpreter module, AT command set module are connected successively with 3G/4G protocol stack module and process is reversible, the input end of described user's script routine module, script interpreter module, AT command set module and 3G/4G protocol stack module is all connected to RTOS real time operating system module, and the output terminal of described user's script routine module is connected to general input/output port I/O.

Further, the base band of BB described in technique scheme also comprises three Netcom's modules and signal enhancing module.

Further, the general input/output port I/O port described in technique scheme is data line and the address wire of LED screen.

Further, the general input/output port I/O port described in technique scheme is the control line of LED screen.

Further, the script interpreter module in technique scheme in BB base band is made up of script compile module and script execution module, and described two large modules connect in turn.

After adopting said structure, the utility model utilizes the cooperation of each large module in 3G/4G inside modules base band BB chip, instead of the function of microprocessing unit MCU in traditional 3G/4G wireless LED display control card; Make use of 3G/4G inside modules baseband chip hardware adaptor, instead of the scanning control circuit of traditional 3G/4G wireless LED control card, reduce cost, save space; Make use of the storage unit that base band and 3G/4G module carry, instead of the memory module of original peripheral hardware; Make use of three Netcom's modules, the data that telecommunications network, broadcasting and television network and internet wireless net send can be received at any time, realize the control to wireless LED screen; Make use of signal enhancing module can make the LED screen of movement can get information timely anywhere, realizes the control to wireless LED screen.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:

Fig. 1 is the structural representation of traditional wireless LED screen control device based on 3G/4G module.

Fig. 2 is structural representation of the present utility model.

Fig. 3 is the structural representation of embedded script 3G/4G module in the utility model.

Fig. 4 is the process flow diagram of user's script module in the utility model.

Embodiment

As shown in Figure 2, Figure 3 and Figure 4 be a kind of wireless LED screen control device adopting embedded script 3G/4G module to realize, mainly comprise 3G/4G module and the LED display of embedded script; The output terminal of the 3G/4G module of embedded script is connected with LED display; The 3G/4G module of embedded script forms primarily of RF radio-frequency module, FLASH memory module, RAM memory module and BB base band; The output terminal of RF radio-frequency module, FLASH memory module and RAM memory module is all connected to BB base band; BB base band forms primarily of RTOS real time operating system module, user's script routine module, script interpreter module, AT command set module, 3G/4G protocol stack module and general input/output port I/O; User's script routine module, script interpreter module, AT command set module are connected successively with 3G/4G protocol stack module and process is reversible, the input end of user's script routine module, script interpreter module, AT command set module and 3G/4G protocol stack module is all connected to RTOS real time operating system module, and the output terminal of user's script routine module is connected to general input/output port I/O.

Wherein BB base band also comprises three Netcom's modules and signal enhancing module.General input/output port I/O port is data line and the address wire of LED screen.General input/output port I/O port is the control line of LED screen.Script interpreter module in BB base band is made up of script compile module and script execution module, and described two large modules connect in turn.

As shown in Figure 1 be traditional 3G/4G wireless LED screen control card, data are entering screen driver circuit, namely before scanning control circuit, need to receive and change through MCU the data that 3G/4G module transmits, then the process that the program in FLASH, character library and display data message carry out data is called, send into data line and address wire that scanning control circuit removes to control LED display curtain again, information is shown on screen.

As shown in Figure 2, the utility model make use of 3G/4G module self powerful computing power and storage space, by the MCU adopted in traditional 3G/4G wireless LED screen control card, RAM, FLASH and frequency sweep circuit integrated enter in the baseband circuit of 3G/4G inside modules, the logic control originally realized by MCU and data processing, become the shell script of base band inside, and make use of the storage unit that base band and 3G/4G module carry, as RAM and FLASH stores or data cached; I/O (universal input/output) port that carries of utilization factor baseband chip is as the data line of LED screen, address wire and control line again.So just eliminate most of circuit of traditional design, thus greatly reduce complicacy, the cost of design, reduce the space size shared by product.

As shown in Figure 3, in order to realize the calculating of MCU in traditional design, storage and controlling functions, need Script Programming by the inside of module to realize process and the display of screen message.Wherein, user's shell script is responsible for control and the data processing of whole system, and it calls AT command set by script interpreter, performs the traffic operation of 3G/4G protocol stack, is obtained the data of wireless network by RF radio frequency; And utilize FLASH and RAM to realize storage and the reading of data, data are converted to the information being applicable to LED screen.RTOS is the real time operating system of BB base band inside, is responsible for resource management and the scheduling of whole base band, and encapsulates bottom hardware and operate.From the data that 3G/4G network reception comes, after the process of user's shell script, be admitted to the universal input and output port I/O of base band BB, a part of port is responsible for addressing, and a part of port is responsible for pulse or data manipulation.I/O port is directly connected on the interface of LED display, thus operates flickering of the LED in LED screen, realizes the display effect of text and figure.Also add signal in BB base band and strengthen module, the control of the screen to regular movement can be realized, ensure that transportable LED screen can obtain very strong signal anywhere, upgrade at any time or close LED screen; In BB base band, be provided with three Netcom's modules, wireless LED screen can be made to receive the data of telecommunications network, broadcasting and television network and internet transmission, ensure the timely arrival of various network data, improve utilization factor.

Be illustrated in figure 4 user's script routine module internal process: first the opening of 3G/4G module, the data of wireless network are passed to and performs 3G/4G module protocol stack, then startup AT command set is delivered to, user's shell script has been determined whether after starting AT command set, if there is no user's shell script, then return after higher level 3G/4G module opens, carry out confirmation again; If confirm there is user's shell script, then can open user's shell script, then booting script interpreter, call AT instruction, then 3G/4G operation is performed, determine whether the displayable information of LED, if find there is no the displayable information of LED, then can return to after enabling script interpreter and reaffirm; After having the displayable information of LED in confirmation data, start data sink, then change the data received, data be sent in LED screen, last 3G/4G program module terminates.

Although the foregoing describe embodiment of the present utility model; but those skilled in the art are to be understood that; these only illustrate; various changes or modifications can be made to present embodiment; and not deviating from principle of the present utility model and essence, protection domain of the present utility model is only defined by the appended claims.

Claims

1. the wireless LED screen control device adopting embedded script 3G/4G module to realize, is characterized in that: the 3G/4G module and the LED display that mainly comprise embedded script; The output terminal of the 3G/4G module of embedded script is connected with LED display; The 3G/4G module of described embedded script forms primarily of RF radio-frequency module, FLASH memory module, RAM memory module and BB base band; The output terminal of described RF radio-frequency module, FLASH memory module and RAM memory module is all connected to BB base band; Described BB base band forms primarily of RTOS real time operating system module, user's script routine module, script interpreter module, AT command set module, 3G/4G protocol stack module and general input/output port I/O; Described user's script routine module, script interpreter module, AT command set module are connected successively with 3G/4G protocol stack module and process is reversible, the input end of described user's script routine module, script interpreter module, AT command set module and 3G/4G protocol stack module is all connected to RTOS real time operating system module, and the output terminal of described user's script routine module is connected to general input/output port I/O.

2. a kind of wireless LED screen control device adopting embedded script 3G/4G module to realize according to claim 1, is characterized in that: described BB base band also comprises three Netcom's modules and signal strengthens module.

3. a kind of wireless LED screen control device adopting embedded script 3G/4G module to realize according to claim 1 and 2, is characterized in that: described general input/output port I/O port is data line and the address wire of LED screen.

4. a kind of wireless LED screen control device adopting embedded script 3G/4G module to realize according to claim 1 and 2, is characterized in that: described general input/output port I/O port is the control line of LED screen.

5. a kind of wireless LED screen control device adopting embedded script 3G/4G module to realize according to claim 1, it is characterized in that: the script interpreter module in described BB base band is made up of script compile module and script execution module, described two large modules connect in turn.