CN201638530U

CN201638530U - GPRS (General Packet Radio Service) vehicle-mounted LED control card

Info

Publication number: CN201638530U
Application number: CN2010201406490U
Authority: CN
Inventors: 臧歆; 雍剑秋
Original assignee: SHENYANG ZHONGZHICHENG SOFTWARE CO Ltd
Current assignee: SHENYANG ZHONGZHICHENG SOFTWARE CO Ltd
Priority date: 2010-03-25
Filing date: 2010-03-25
Publication date: 2010-11-17
Anticipated expiration: 2020-03-25

Abstract

The utility model relates to a GPRS (General Packet Radio Service) vehicle-mounted LED control card which overcomes the technical problems that the traditional vehicle-mounted LED control card has complicated structure, inconvenient use and installation and inflexible operation and can update display content only under the condition that equipment is powered on. The GPRS vehicle-mounted LED control card is characterized by comprising a central controller, wherein the central controller is connected with a GPRS wireless transmission module adopting a GPRS technology by a serial port, connected with a storing module by a I2C bus interface, connected with a clock chip by utilizing a universal IO (input and output) pin simulating time sequence and connected with a word stock chip by utilizing a self SPI (Serial Peripheral Interface) and is used for controlling a system indicating lamp by utilizing a universal IO and forming an LED interface by utilizing the universal IO. Compared with the prior art, the utility model has the advantage of realization of transmission of remote data; an operator can remotely issue display information just on line and is free from the limitation of the position and the state of the equipment, and the wireless information issue can be carried out at any place, therefore, the operation is flexible; and because a GPRS module and the LED display function are integrates into a whole, the utility model has high integrated level, high stability and more convenient use and installation.

Description

A kind of GPRS vehicle LED control card

Technical field

The utility model belongs to LED control card technical field, particularly carries out the long-range a kind of GPRS vehicle LED control card that releases news based on GPRS.

Background technology

In the prior art, the LED control card all is to carry out wired connection so that the information content that needs demonstration to be set by 232 interfaces or 485 interfaces, and this control card operation is dumb, needs the operator just can carry out the update displayed content by the computer connection device.The LED control card that band GPRS remote control module is also arranged in the prior art, but must ability update displayed content under the electric situation be arranged at equipment, under the situation of not having electricity, can not carry out the operation of update displayed content, bring very burden to operation, because long-range equipment has a lot of uncertain factors, cause issuing the delay of display message easily.Also have a kind of situation to be, though the content that also can long-rangely release news, owing to add the LED control card by data transmission unit (DTU) mode and realize, the realization of this mode needs the composition of a plurality of modules, use install inconvenient.

Summary of the invention

Technical problem to be solved in the utility model is, overcomes the deficiencies in the prior art part, and a kind of Long-distance Control that has is provided, as long as can surf the Net the content that just can release news and a kind of GPRS vehicle LED control card flexible to operation.

The technical solution adopted in the utility model contains a central controller, described central controller is connected with the GPRS wireless transport module by serial ports, be connected with memory module by inter-IC bus (being called for short the I2C bus) interface, utilize universal I pin simulated timing diagrams to be connected with clock chip, utilize the SPI interface of self to be connected with word-base chip, utilize universal I control system pilot lamp, and utilize the universal I control timing to form the LED interface.

The model that described central controller adopts is ATMEGA32L, has the RAM of ROM, the 2KB of 32KB, a serial ports, a SPI interface, an I2C bus interface.

Described LED interface contains 12 interfaces and 08 interface.

During use, specification according to LED cell board interface, the utility model is connected with the LED cell board by the LED interface, after powering on, each module of system initialization, comprise the serial ports baud rate, I2C bus interface speed, the SPI interface rate, then according to the parameter in the memory module, central controller sends the AT order by serial ports to the GPRS wireless transport module that adopts the GPRS technology, send connection request to remote server, after successful connection, system indicator is bright, and obtain the time in the clock chip this moment, from memory module, take out displaying contents, judge whether effectively according to the current time, if effectively, the type matrix of read out word from word-base chip just, and output to the LED cell board by 08 interface or 12 interfaces according to sequential, data and order that while GPRS wireless transport module real-time listening remote server sends, according to order that gets access to and data, central controller is handled accordingly.

Compared with prior art the beneficial effects of the utility model are:

1. owing to adopt the GPRS technology, can realize the transmission of teledata, the operator can long-range issue display message as long as just can surf the Net, and is not subjected to the restriction of device location and state, all can carry out wireless releasing news anywhere, thereby flexible operation.

2. because there is information releasing in the remote server in the utility model, and equipment is not online also can to carry out corresponding operating, in a single day equipment power on, just Connection Service device initiatively, remote server can send to the LED control card again with the information that does not receive, the upgrading in time and do not lose of guarantee information.

3. the utility model combines GPRS module and LED Presentation Function, the integrated level height, and stability is strong, uses and installs more convenient.

Description of drawings

Accompanying drawing is circuit frame figure of the present utility model.

Embodiment

The technical solution adopted in the utility model includes a central controller 1, the model that described central controller 1 adopts is ATMEGA32L, ROM with 32KB, the RAM of 2KB, a serial ports, a SPI interface, an I2C bus interface, described central controller 1 is connected with the GPRS wireless transport module 2 that adopts the GPRS technology by serial ports, be connected with memory module 3 by the I2C bus interface, utilize universal I pin simulated timing diagrams to be connected with clock chip 4, utilize the SPI interface of self to be connected with word-base chip 5, utilize universal I control system pilot lamp 6, and utilizing the universal I control timing to form LED interface 7, described LED interface 7 contains 12 interface 7-1 and 08 interface 7-2.

During use, according to LED cell board interface is the specification of 12 interfaces or 08 interface, the utility model is connected with the LED cell board by the LED interface, after powering on, each module of system initialization, comprise the serial ports baud rate, I2C bus interface speed, the SPI interface rate, then according to the parameter in the memory module 3, central controller 1 sends the AT order by serial ports to GPRS wireless transport module 2, send connection request to remote server, after successful connection, system indicator 6 is bright, and obtain the time in the clock chip 4 this moment, from memory module 3, take out displaying contents, judge whether effectively according to the current time, if effectively, the type matrix of read out word from word-base chip 5 just, and output to the LED cell board by 08 interface or 12 interfaces according to sequential, data and order that while GPRS wireless transport module 2 real-time listening remote servers send, according to order that gets access to and data, central processing unit 1 is handled accordingly.

Claims

1. GPRS vehicle LED control card, contain a central controller (1), it is characterized in that, described central controller (1) is connected with GPRS wireless transport module (2) by serial ports, be connected with memory module (3) by the I2C bus interface, utilize universal I pin simulated timing diagrams to be connected with clock chip (4), utilize the SPI interface of self to be connected with word-base chip (5), utilize universal I control system pilot lamp (6), and utilize the universal I control timing to form LED interface (7).

2. a kind of GPRS vehicle LED control card according to claim 1 is characterized in that described central controller (1) model is ATMEGA32L.

3. a kind of GPRS vehicle LED control card according to claim 1 is characterized in that described LED interface (7) contains 12 interfaces (7-1) and 08 interface (7-2).