CN202871095U

CN202871095U - Traffic signal lamp control terminal based on GPRS

Info

Publication number: CN202871095U
Application number: CN 201220497315
Authority: CN
Inventors: 孙富康; 方潜生; 孙凯廷; 张凯; 赵鲜华; 孙智骁
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-25
Filing date: 2012-09-25
Publication date: 2013-04-10
Anticipated expiration: 2022-09-25

Abstract

The utility model relates to the field of city road traffic signal lamp control and management systems, in particular to a traffic signal lamp control terminal based on GPRS. The traffic signal lamp control terminal comprises a microprocessor MCU. The microprocessor MCU is in interactive connection with an FRAM memory, a traffic signal lamp monitoring module and a GPRS communication module respectively; and a signal input end of the microprocessor is connected with a keyboard; and a signal output end of the microprocessor is connected with an LCD display control module. According to the traffic signal lamp control terminal based on the GPRS of the utility model, remote unified management, centralized control and monitoring are performed on an original isolated and single traffic signal lamp control terminal through wireless networks (GPRS or GSM communication), such that the traffic signal lamp control terminal based on the GPRS is of important significance in maintaining and ensuring the safety and smoothness of road traffic, and can further strengthen unified planning, management and allocation of city traffic for traffic management departments.

Description

A kind of Traffic signal control terminal based on GPRS

Technical field

The utility model relates to Traffic Signals in Urban Roads lamp controlling and management field, specifically relates to a kind of Traffic signal control terminal based on GPRS.

Background technology

Traffic lights are one of important component parts in the Traffic Systems, are installed on the traffic light controller of traffic intersection, road both sides by the control of signal lamp light on and off sequential being finished the function to road traffic " commander ".Often there is the phenomenon of Natural Damage and artificial destruction in current traffic lights, and the damage of logical equipment will inevitably affect normal road traffic order, causes the road congestion phenomenon, brings hidden danger to traffic safety, is easy to occur pernicious traffic hazard; Thereby in a single day damage of transit equipment, must find in time and be repaired.At present, whether traffic lights damage, the local relevant special messenger of school of management department inspection mostly, or send someone to repair after receiving informants' hot-line telephone, such one is to spend the management role that a large amount of manpower and materials remove to finish transit equipment, the 2nd, such management method inefficiency can not satisfy the demand of Modern Traffic.

The utility model content

For the technical matters that exists in the prior art, the utility model provides a kind of Traffic signal control terminal based on GPRS, adopts the GPRS communication, realizes that Surveillance center is for each road oral sex ventilating signal lamp real-time network management and monitoring.

To achieve these goals, the technical scheme of employing is as follows:

A kind of Traffic signal control terminal based on GPRS, it is characterized in that, comprise Micro-processor MCV, described Micro-processor MCV is connected with the GPRS communication module with FRAM storer, traffic lights monitoring module respectively and is connected, described microprocessor signals input end is connected with keyboard, and described microprocessor signals output terminal is connected with the LCD display control module.

The utility model is based on the Traffic signal control terminal of GPRS, original isolated single Traffic signal control terminal is implemented long-range unified management, centralized control and monitoring by wireless network (GPRS or GSM communication), to safeguarding and ensure that the safe, unobstructed of road traffic has great significance, can further strengthen traffic control department to unified planning, management and the allotment of urban transportation simultaneously.

Description of drawings

For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the structural drawing of city traffic signal lamp monitoring and management system.

Fig. 2 is based on the structural drawing of the Traffic signal control terminal of GPRS.

Embodiment

See also Fig. 1 and 2, a kind of Traffic signal control terminal based on GPRS, comprise Micro-processor MCV, Micro-processor MCV is connected with the GPRS communication module with FRAM storer, traffic lights monitoring module respectively and is connected, the microprocessor signals input end is connected with keyboard, the microprocessor signals output terminal is connected with the LCD display control module, specifically is expressed as follows:

Micro-processor MCV, the W77E58 that selects WINBOND company to produce, W77E58 adopts the 4.5-5.5V power voltage supply, has 32 input/output port, and 2 full duplex serial ports.

During work, microprocessor arranges or the remote control command of system is finished control to traffic lights according to the machine is artificial; Native system can be controlled 12 signal lamps at most simultaneously, also can increase controlling the size of signal lamp by the I/O expansion technique during practical application.Adopt the mode of serial RS-232 communication between microprocessor and the GPRS module; And adopt serial data transmission mode between the LCD display control module, the data message in the ferroelectric memory (FRAM) is stored and read to microprocessor employing I2C interface.

The GPRS communication module adopts the technical grade GPRS communication module Q2406B of WAVECOM company.The Q2406B module is a kind of GSM/GPRS radio modem.This module can be carried out voice, short message, fax and data transmission; Support AT Command Set, support TCP/IP, UDP and ppp protocol; Module adopts the 5V power supply, can automatically enter battery saving mode, thereby reduces the power consumption of system.

During receive data, Q2406B processes being transmitted to CPU after carrying out corresponding protocol processes from the GPRS integrated data of base station reception.When sending data, by CPU user data is sent to Q2406B through serial ports, Q2406B is packaged into the GPRS packet data package to it and passes to GPRS network.Almost need not any time (namely need not to establish call connection for the access of every secondary data) owing to setting up new connection, thereby you can keep in touch with network at any time.Q2406B eternal accessing Internet still when not having data to send, but because there are not actual data to transmit, not charging of Mobile Communication Service is so can keep more easily connecting the control remote terminal.

The LCD display control module is installed in the Traffic signal control terminal, is used for showing in real time the duty of Traffic signal control terminal, and as the display interface of man-machine interaction.The OCMJ4X8B type LCD MODULE that LCD MODULE in the terminal adopts Jinpeng's electronics to produce.OCMJ4X8B type LCD MODULE is the Chinese character image type LCD MODULE of 128 * 64 dot matrix, adopts direct current 5V operating voltage, but Display of Chinese characters and figure, built-in GB GB2312 code simplified form of Chinese Character character library, 128 characters and 64 * 256 dot matrix display random access memories; Simultaneously, also have the functions such as cursor demonstration, picture displacement, sleep pattern.Interface between microprocessor and the LCD module.

The traffic lights monitoring module comprises signal lamp control and two parts of status monitoring.

At present, the control of traffic lights has several different methods.For common traffic lights, can directly use relay to control; For the traffic lights of modular type, generally can adopt the RS-485 bus mode to control.The compatible relay of the signal lamp monitoring module of native system and RS-485 dual mode, existing Control array has again independent RS-485 communication interface.When using, the user can arrange by system software.

System goes back the using miniature mutual inductor carries out current parameters to the electricity consumption loop of signal lamp monitoring in the work of control traffic lights; System compares the duty of real-time current parameters and signal lamp, in case data are inconsistent, alarm just will be done by system so; On the one hand, send warning message by the GPRS module to Surveillance center, on the other hand, utilize Short Message Platform to send maintenance information to plant maintenance personnel's mobile phone.

System has used FM24C64 ferroelectric memory (FRAM).In the commercial Application environment, because ferroelectric memory is far superior to EEPROM aspect Performance And Reliability, thereby native system adopts initialization and the real-time working status information of FM24C64 storage system.

Above content only is to the utility model structure example and explanation; under those skilled in the art described specific embodiment is made various modifications or replenish or adopt similar mode to substitute; only otherwise depart from the structure of utility model or do not surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.

Claims

1. Traffic signal control terminal based on GPRS, it is characterized in that, comprise Micro-processor MCV, described Micro-processor MCV is connected with the GPRS communication module with FRAM storer, traffic lights monitoring module respectively and is connected, described microprocessor signals input end is connected with keyboard, and described microprocessor signals output terminal is connected with the LCD display control module.