CN203037262U - GPS/GPRS automobile-mounted positioning device based on ARM - Google Patents

Abstract

The utility model discloses a GPS/GPRS (global position system/general packet radio service) automobile-mounted positioning device based on an ARM (advanced reduced instruction set computer machine), which comprises a processor, a GPS module, a GPRS module, an alarm, an LCD (liquid crystal display), a CAN (controller area network) bus module and a failure detector, wherein the GPS module, the GPRS module, the alarm, the LCD and the CAN bus module are connected with the processor, and the failure detector is connected with the CAN bus module. The GPS/GPRS automobile-mounted positioning device utilizes a GPS and a GPRS radio communication technique to achieve positioning of an automobile, and data communication between the automobile and a control center; the CAN bus control module is constructed to collect a working condition of a main part of the automobile; a main technical parameter of the automobile can be monitored in real time; integrated information of the automobile is displayed by the display; and the GPS/GPRS automobile-mounted positioning device is good in integration, and high in intelligence degree, and provides reliable guarantees for intelligent management of a traffic road and safe driving of the automobile.

Description

A kind of GPS/GPRS vehicle positioning device based on ARM

Technical field

The utility model belongs to the automobile automation field, relates in particular to a kind of GPS/GPRS vehicle positioning device based on ARM.Background technology

Vehicle-mounted global position system, belong to intelligent transportation system (namely traditional transportation system being transformed the novel traffic means of transportation of a kind of informationization, intellectuality and the socialization that form by the new and high technologies such as information, communication and control of uses advanced) branch, in this huge system of intelligent transportation system, occupy extremely important status.As the basis of whole intelligent transportation system, the fundamental purpose of vehicle-mounted global position system is exactly to find out specific vehicle in the position of special time.External research for intelligent transportation system, carried out three, 40 years, the U.S., states such as Japan and Europe have all dropped into a large amount of funds, man power and material for this reason, obtain a lot of valuable achievements, and become three big bases of world's intelligent transportation system research.Also there is sizable scale the other countries and regions to the research of intelligent transportation system, as Australia, Korea S, Singapore and Hong Kong etc.We can say that at present the whole world is just in new intelligent transportation system industry of form, development scale and speed are surprising.China's development of ITS is started late, and before nineteen nineties, mainly is to introduce in some big cities and the digestion urban traffic signal control system.The nineties begins progressively applying GPS vehicle monitoring and dispatching system later on.At present, the Chinese GPS onboard system still is in the stage of market cultivation, and overall size is less.Among relevant complete sets of basic equipment facility is improving with resource, for providing and update mechanism of the issue of Real-time Traffic Information and perfect digital navigation map, lack solution and the approach of reality.

Summary of the invention

Problem at present common vehicle positioning device existence, the purpose of this utility model is, a kind of GPS/GPRS vehicle positioning device based on ARM is provided, this device integrates global satellite positioning, present mobile communication technology, vehicle location and correlation behavior are monitored in real time, solved the existing problem of existing apparatus effectively.

In order to realize above-mentioned task, the utility model is solved by the following technical solutions:

A kind of GPS/GPRS vehicle positioning device based on ARM, comprise processor, GPS module, GPRS module, alarm, LCD display, CAN bus module and fault locator, wherein, GPS module, GPRS module, alarm, LCD display and CAN bus module are connected with processor respectively, and fault locator connects the CAN bus module.

Other technologies feature of the present utility model:

Described processor adopting S3C2410A processor.

Described GPS module comprises receiver, and described receiver adopts the GPS25-LVC receiver.

Described GPRS module adopts the MC35 module.

Described alarm adopts hummer.

Described CAN bus module comprises CAN bus controller and CAN bus transceiver, and described CAN bus controller adopts the MCP2510 controller, and described CAN bus transceiver adopts the PCA82C250 transceiver.

Described fault locator adopts V-30 type vehicle failure detection instrument.

The utility model utilizes the GPS global positioning system GPRS wireless communication technology of unifying, realize the data communication between vehicle location and vehicle and the control center, make up the duty that the CAN bus control module is used for the collection vehicle major part, monitor the important technological parameters of automobile in real time, and show the integrated information of vehicle by display.The utility model integration is good, and intelligent degree height is for the intelligent management of traffic route and the safe driving of automobile provide reliable guarantee.

Description of drawings

Fig. 1 is annexation synoptic diagram of the present utility model.

Fig. 2 is workflow diagram of the present utility model.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Embodiment

As shown in Figure 1, a kind of GPS/GPRS vehicle positioning device based on ARM based on technical solutions of the utility model, comprise processor, GPS module, GPRS module, alarm, LCD display, CAN bus module and fault locator, wherein, GPS module, GPRS module, alarm, LCD display and CAN bus module are connected with processor respectively, and fault locator connects the CAN bus module.

Processor adopting S3C2410A processor, it is a 16/32 RISC embedded microprocessor based on the ARM920T kernel that Korea S Samsung designs towards high performance-price ratio, low-power consumption and low price.

The GPS module comprises the GPS25-LVC receiver, mainly finishes reception and the processing of GPS locating information, is responsible for receiving the navigation message that the GPS position location satellite sends.It is connected with main circuit board by serial line interface, is the key that realizes receiving gps data.

The GPRS module is mainly finished vehicle and is communicated by letter with control center with vehicle, vehicle.In this device, the GPRS module is selected the MC35 module for use.The data input/output interface of MC35 is actually a UART, and it can directly link to each other with UART interface in the processor.The GPRS module is responsible for the communication task of primary processor and Surveillance center, and the gps data that it will be handled well sends to Surveillance center by network, and receives the control command that Surveillance center sends to processor.

The CAN bus module can be realized being connected of this device and other vehicle-mounted modules, finishes the collection of car status information and further control.The CAN bus module comprises CAN bus controller and CAN bus transceiver, and that here select for use respectively is MCP2510 and the PCA82C250 of Microchip company.Wherein, CAN bus controller MCP2510 has realized the agreement of CAN bus, and CAN bus transceiver PCA82C250 provides the interface between protocol controller and the physical transfer circuit.

Fault locator mainly is that the important technological parameters to automobile detects, and is shown on the LCD display, if the fault of detecting can be sent alerting signal by alarm.This device adopts V-30 type vehicle failure detection instrument, and the main technical parameter that detects comprises fuel consumption, damping force, steering force, engine temperature, coolant temperature, headlamp, and aspects such as internal car noise and tail gas.This detector can be converted to electric signal to various signals by built-in various sensors, can carry out data transmission with the CAN bus module.

LCD display provides a good man-machine interaction interface in order to realize the demonstration of information.The utility model is selected the LQ080V3DG01 display of Sharp Corp for use, and this display has 640 * 480 resolution, and 18 color depth can directly link to each other with the LCD interface of processor S3C2410A.

Fig. 2 is workflow diagram of the present utility model.Work of the present utility model realizes being divided into 7 processes, i.e. initialization procedure, control procedure, gps data acquisition process, upstream data transfer process, user interface process, communication process and downlink data processing procedure.

Initialization procedure is mainly realized to serial initialization and all zone bit zero setting;

Control procedure mainly is to carry out corresponding operation according to the order of S3C2410A, such as gathering gps data, sends current driving states etc.;

The gps data acquisition process is exactly to obtain current GPS information by the GPS module that is connected with serial ports, the CAN bus control module is used for the duty of collection vehicle major part in the data acquisition, and monitor the important technological parameters of automobile in real time by fault locator, show the integrated information of vehicle by LCD display;

The major function of upstream data transfer process is that the gps data or the relevant status information that receive are converted to the data layout of appointing in order to communicate by letter with Surveillance center.This process can judge that needing data converted is gps data information or correlation behavior information or the both has, and selects corresponding converse routine then;

The user interface process mainly is that status data etc. show at touch-screen gps data, also wants to respond the interruption on the touch-screen simultaneously, in order to realize the function by the touch screen operation car-mounted terminal;

Communication process is to finish communicating by letter of car-mounted terminal and Surveillance center, and it both can realize radio communication with Surveillance center by GPRS network, also can be connected with notebook computer by network interface to communicate.

In the downlink data processing procedure, the GPRS communication module is passed to Surveillance center with locating information by network, and the situation of Real-time Road traffic can be known in Surveillance center according to these information.

The electronic devices and components that the utility model adopts are known product, and those skilled in the art are according to the i.e. concrete connected mode of electronic devices and components as can be known of the technical solution of the utility model.

Claims (8)

1. GPS/GPRS vehicle positioning device based on ARM, it is characterized in that, comprise processor, GPS module, GPRS module, alarm, LCD display, CAN bus module and fault locator, wherein, GPS module, GPRS module, alarm, LCD display and CAN bus module are connected with processor respectively, and fault locator connects the CAN bus module.

2. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1 is characterized in that described processor adopting S3C2410A processor.

3. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1 is characterized in that described GPS module comprises receiver, and described receiver adopts the GPS25-LVC receiver.

4. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1 is characterized in that, described GPRS module adopts the MC35 module.

5. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1 is characterized in that, described alarm adopts hummer.

6. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1 is characterized in that, described LCD display adopts the LQ080V3DG01 display.

7. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1, it is characterized in that, described CAN bus module comprises CAN bus controller and CAN bus transceiver, described CAN bus controller adopts the MCP2510 controller, and described CAN bus transceiver adopts the PCA82C250 transceiver.

8. the GPS/GPRS vehicle positioning device based on ARM as claimed in claim 1 is characterized in that, described fault locator adopts V-30 type vehicle failure detection instrument.

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