CN2798111Y

CN2798111Y - GSM/GPRS vehicle positioning monitoring system

Info

Publication number: CN2798111Y
Application number: CNU2005201003022U
Authority: CN
Inventors: 何崇中
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-01-25
Filing date: 2005-01-25
Publication date: 2006-07-19
Anticipated expiration: 2015-01-25

Abstract

The utility model relates to a GSM/GPRS vehicle position monitoring system which mainly comprises a main processor, a GSM module for carrying out communication by a GSM network, a GPS module for receiving GPS satellite signals and calculating the position of a vehicular terminal at present, a display module for displaying dynamic data of a moving vehicle in time, and a personal computer processed software system which displays the dynamic position and the traveling route on an electronic map of a monitoring center after calculation, wherein the primary processor is connected with the GSM module and the GPS module by serial ports, and connected with the display module by a data bus and a control line. The utility model has the advantages of accurate positioning, real-time monitoring, high speed, simple equipment and convenient operation. GSM/GPRS positioning data and other information are transmitted by telecommunication common network short messages, and thus, the functions of positioning, monitoring, alarm, etc., of a vehicle can be realized.

Description

GSM/GPRS vehicle location monitor system

Technical field

The utility model relates to a kind of locating and monitoring system, mainly is a kind of GSM/GPRS vehicle location monitor system.

Background technology

At present (Global Positioning System, technology GPS) is comparative maturity, uses also very conveniently, can obtain the global location coordinate at vehicle GPS intelligent terminal place easily by the GPS module of special use for Global Positioning System (GPS).Its bearing accuracy is than higher, and general mistake is less than 15m.Its principle is to have adopted GSM/GPRS wireless data communication technology, through obtaining the dynamic position of vehicle after resolving, the short message that the GSM/GPRS module of vehicle termination equipment will have vehicle position information sends to Surveillance center, Surveillance center receives the short message that has the position that vehicle termination sends by the GSM communication module, the dynamic position and the traffic route that show vehicle after resolving on the electronic chart of Surveillance center, Surveillance center can utilize the GSM/GPRS communication network to send scheduling indications such as voice SMS to vehicle drivers.Purpose is the vehicle safety that ensures oneself.People are sitting in family can be seen own home's vehicle on electronic chart the orientation of travelling, the state when in time understanding the transport condition of oneself car and vehicle lay-off.

How locating information is sent to the ITS center is one of more scabrous problem always.ITS system in the past adopts the communication at trunking communication system realizing car-mounted terminal and ITS center more.Shortcomings such as but this system has, and the overlay area is little, installation and maintenance expense height, technical sophistication.

The utility model content

The purpose of this utility model is in order to solve above-mentioned deficiency, and the GSM/GPRS vehicle location monitor system of problems such as a kind of effective solution locating information is provided.

The utility model is finished above-mentioned purpose by the following technical programs.This GSM/GPRS vehicle location monitor system, system mainly comprises primary processor; Gsm module is used to utilize the GSM net to carry out communication; GPS module: be used for the signal that the GPS module is used to receive gps satellite, and calculate the present position of car-mounted terminal, receive the base station operational factor of region whenever and wherever possible, and send this machine identification code and original position ownership district identification code, register to new base station; Display module: the dynamic data when being used for timely display automobile and travelling; PC process software system: receive the short message that has the position that vehicle termination sends by the GSM communication module, after resolving, on the electronic chart of Surveillance center, show the dynamic position and the traffic route of vehicle; Wherein primary processor is connected with the GPS module with gsm module by serial port, and primary processor is connected with display module with control line by data bus.

The beneficial effects of the utility model are: the vehicle GPS intelligent terminal is by the global coordinates of gps satellite location oneself; With message or GPRS data communication method locating information is sent to the ITS center then, the control traffic order at ITS center also is to send in the vehicle GPS intelligent terminal by the GSM/GPRS network, and the communication at terminal and ITS center meets special-purpose bidding protocol; At last, the user of internet can also receive the ITS center by VPN private technology or other safe networking technical battery, to control, to check the state of car-mounted terminal.The advantage of system is accurate positioning, monitoring constantly, reaction velocity is fast, equipment is simple, easy operating.System adopts independently mobile unit and detailed urban district electronic chart, utilizes locator data and other information of telecommunications public network short message signal transmission GSM/GPRS, thereby has realized the functions such as location, monitoring and warning of vehicle.

Description of drawings:

Fig. 1 is the structural representation of the utility model hardware system;

Fig. 2 is a gsm module hardware connection diagram of the present utility model;

Fig. 3 is the structural representation of software systems of the present utility model.

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing.As shown in the figure, this GSM/GPRS vehicle location monitor system, system mainly comprises primary processor; Gsm module is used to utilize the GSM net to carry out communication; GPS module: be used for the signal that the GPS module is used to receive gps satellite, and calculate the present position of car-mounted terminal, receive the base station operational factor of region whenever and wherever possible, and send this machine identification code and original position ownership district identification code, register to new base station; Display module: the dynamic data when being used for timely display automobile and travelling; PC process software system: receive the short message that has the position that vehicle termination sends by the GSM communication module, after resolving, on the electronic chart of Surveillance center, show the dynamic position and the traffic route of vehicle; Wherein primary processor is connected with the GPS module with gsm module by serial port, and primary processor is connected with display module with control line by data bus.Its hardware system structure as shown in Figure 1.

1, main control singlechip: main control singlechip adopts the high-performance single-chip microcomputer W77E58 with two serial ports.In system, main control singlechip is responsible for receiving user's handle input signal and GPS input signal; Gps signal is calculated, to obtain current warp, latitude coordinate; Receive and resolve the short message order of ITS center transmission, upload operations such as the elements of a fix, warning by order; Also be responsible in addition the information of the running status of system and ITS is shown by liquid crystal display.

2, gsm module: use gsm module can utilize the GSM net to carry out communication easily.It connects with the mode of master controller with serial port, and adopts certain baud rate to communicate.Master controller can send SMS message it by AT order control gsm module, uses GPRS transmission data or carries out voice call.Gsm module hardware connection layout as shown in Figure 2.Adopt the serial port of standard to carry out communication between gsm module and the single-chip microcomputer, the high bit rate of communication can reach 115200bit/s.Mainly carry out data communication between gsm module and the SIM card by SIMCLK and SIMDATA signal wire.For guarantee to send SMS message and the time interval of short message between arriving short as far as possible, the preferably same telecom operators of the SIM card of selecting for use provide.When using the GPRS function, also need to select to support the SIM card of GPRS, and open the GPRS service.Gsm module also supports to drive two-way microphone, two-way loudspeaker and No. one hummer.Wherein No. one microphone and loudspeaker can be linked on the receiver of handle, to realize the car phone function.

3, GPS module: the GPS module is used to receive the signal of gps satellite, and calculates the present position of car-mounted terminal.The GPS module that adopts is made up of frequency converter, signalling channel, microprocessor and storage unit.The GPS module sends the elements of a fix by serial port to master controller; Master controller also can send to the GPS module order is set, with the state and the working method of control GPS module.The GPS module need be equipped with special gps antenna and receive gps satellite signal.General in openr area, the gps satellite signal that need receive more than three just can accurately be located.In the vehicle GPS intelligent terminal system, antenna is placed on roof can reasonable locating effect.

4, power module: power module is used for other module for power supply to system.Terminal system needs power module that three road voltages are provided, and is respectively: 3.6V, 5V, 3.3V.Wherein, the current ratio that gsm module needs when transmitting and receive data is big (being about 2A), selected the LM2576 power supply chip of National company for use.It is the high power voltage stabilizing chip that a kind of PWM mode is modulated, and the sharp cutting edge of a knife or a sword electric current up to 3.5A can be provided.Also designed battery backup system in the power module, when vehicle power is not worked or be destroyed, powered to GPS terminal.Under vehicle power situation working properly, backup battery can be recharged automatically.

5, vehicle GPS intelligent terminal System Software: the interrupt system of at first introducing program response.Because the communication between single-chip microcomputer and the module is irregularly, the communication of random length, in order to guarantee not occur congestion situations, system adopts interrupts receive mode: all data that receive are put in interrupt procedure among the cyclic buffer of correspondence, resolved the serial data that receives by master routine then.Single-chip microcomputer also will respond two other interruption: one is the interruption that alarm button triggers when being pressed; Another is regularly to interrupt, and its every 20ms triggering once is used to detect the overtime of gsm module and replys.The major function of vehicle GPS intelligent terminal software systems is finished by master routine.Master routine adopts the system architecture of state machine, and its overall construction drawing as shown in Figure 4.Wherein, (a) being the overall procedure block diagram, (b) is GSM message processing section process flow diagram, (c) is GPS message processing section process flow diagram.Terminal can be in 8 kinds of states: idle, upload locating information, timing is uploaded in locating information, dialing, the conversation, network can't be communicated with, GPS can't locate, report to the police.Switching between state is mainly controlled by the command message that sends message by the ITS center.Carry out initial work during program work earlier, enter the main control circulation then.In main control circulation, check at first whether complete GSM packet is arranged in the GSM data buffer,, and change the residing state of terminal according to the control command in the agreement if having then resolve.Whether in gps data buffer zone have complete gps data bag, if having then take out and parse current global location coordinate, use for uploading coordinate time if then judging.According to the residing state of terminal terminal is operated at last, for example:, then control gsm module and upload fixed message if terminal is in the state of uploading localization message.

Experiment showed, the vehicle GPS intelligent terminal can finish terminal positioning preferably, with the communication of ITS center, report to the police, dial function such as car phone, and have characteristics such as cost is lower, system's broad covered area, use and maintenance cost is low, communication is reliable.But,, therefore can't accomplish real-time communication because system mainly adopts the short message of gsm system to carry out communication.Improve a little on the basis of native system and just can use the GPRS technology generation to carry out data transmission for short message, the characteristics of its " always online " can guarantee the real-time Transmission of data.

Principle of work:

Mobile communication system is the widest public communication systems of the maximum coverages of present user.The GSM/GPRS net adopts cellular structure, and areal coverage is divided into several sub-districts (Microcell even picocell), and the scope of sub-district varies according to user what and geographical environment; Big cell operation radius reaches and picks up many kilometers, and little cell operation radius only has below hundred meters.

The GSM/GPRS system all has sending and receiving base station and base station information processing enter in each basic cellular cell.Manage and charge in order to realize mobile phone roaming communication and to be convenient to, the GSM/GPRS net is provided with a cover user's location registers and a registration management system, and each base station all has dedicated channel to launch the network operation parameter of this base station.Network operation parameter comprises channel CH, base station identity code BSIC, data such as signal intensity SS.Base station identity code BSIC just corresponding the geographic position of unique this base station.

The GSM/GPRS transfer table just receives the base station operational factor of region whenever and wherever possible as long as start shooting, and sends this machine identification code and original position ownership (registration) district identification code to new base station, registers.This course of work is mobile phone not showing of carrying out automatically also to need not user intervention.If being provided with AT, mobile phone instructs then that mobile phone can show the base station operational factor. we also available AT instructs the base station address code is extracted, weave into short message, send to another mobile phone (Surveillance center) by mobile phone, if user (Surveillance center) has the base station identity code of respective regions, base station address date handbook or cartographic information system are just known the actual present position and the state of front end mobile phone.

Board units is that the GSM/GPRS receiver is after receiving GSM/GPRS terrestrial reference locator data, automatically calculate the coordinate in self residing geographic position, by the GSM/GPRS transmission equipment position coordinate data that calculates is handled after the GSM/GPRS communication equipment sends to GSM/GPRS common number mobile radio communication by vehicular control unit together with sensor information, short message service center is by delivering to data on the monitor supervision platform with the DDN special line, center processor with the coordinate data and other reduction of data received after, be complementary with the electronic chart of generalized information system, and on electronic chart, show the accurate position of the real-time coordinate of vehicle intuitively, each user can have the transmitting-receiving of information of vehicles with the authority online of oneself by oneself, work such as inquiry, the clear and multidate information (position of grasping vehicle intuitively on electronic chart, state, travel speed etc.).Can also when getting into danger or mishap occurs, vehicle carry out the straighforward operation of all necessity simultaneously.

Major function:

The state of motion of vehicle data that vehicle-mounted machine provided have: vehicle heading, travelling speed, traffic direction, temporal information etc.

1, vehicle-mounted machine positioning control: after vehicle-mounted machine is opened, the line trace management.But the position also can be reported at interval automatically according to the fixed time in Times position during vehicle-mounted machine;

2, burglar alarm: when automobile enters the state of setting up defences, open car door as the robber, or attempt car is driven away, vehicle-mounted alarm will send alerting signal automatically, deliver to the network control center by the GSM/GPRS system, send the sound and light alarm signal.

3, meet the misfortune warning: vehicle is met when robbing, and can use anti-misfortune flush type switch or manipulation telepilot to send alerting signal.Alerting signal is delivered to the network control center by the GSM/GPRS system, and system adopts the remote control listening mode that artificial false triggering is reported to the police and discerns.

4, the artificial warning: system also has artificial warning function except that automatic warning function is arranged, the car owner can directly report command centre with alert.After command centre examines car owner's identity, can position, follow the trail of, control vehicle.

5, alert is checked: after system received the warning message of networking vehicle, the network control center adopted voice platform to put through car owner's phone or pager automatically, to examine the true and false of warning message.

6, traffic hazard is reported to the police: when vehicle generation traffic hazard, can automatically or handle telepilot and send help signal, and be sent to Surveillance center.

7, adopt the ICP/IP protocol and public security " 110 " warning system of nationality's standard to network with " I10 " networked system, form the unified system of dealing with emergencies and dangerous situations.

8, historgraphic data recording, playback: according to the historical data of being preserved, but the actual driving process of the selected vehicle of plane playback, accurately reproduce the traffic route track and the time of selected vehicle, the passenger complains in order to handle, accident on the road, stolenly accident such as robbed strong evidence is provided.

Working method:

Active mode: the individual sends instruction, and---front end reception---return message---electronic chart shows that text position information is returned simultaneously

Passive mode: distress alerting---transmit back command centre's electronic chart text position and return alarm sound by transmission positional information---individual receiving position information---.

Claims

1, a kind of GSM/GPRS vehicle location monitor system, it is characterized in that: system mainly comprises primary processor; Gsm module is used to utilize the GSM net to carry out communication; GPS module: be used for the signal that the GPS module is used to receive gps satellite, and calculate the present position of car-mounted terminal, receive the base station operational factor of region whenever and wherever possible, and send this machine identification code and original position ownership district identification code, register to new base station; Display module: the dynamic data when being used for timely display automobile and travelling; PC process software system: receive the short message that has the position that vehicle termination sends by the GSM communication module, after resolving, on the electronic chart of Surveillance center, show the dynamic position and the traffic route of vehicle; Wherein primary processor is connected with the GPS module with gsm module by serial port, and primary processor is connected with display module with control line by data bus.

2, GSM/GPRS vehicle location monitor according to claim 1 system, it is characterized in that: gsm module is connected with processor, loudspeaker, microphone, SIM card respectively, mainly carries out data communication by SIMCLK and SIMDATA signal wire between gsm module and the SIM card.

3, GSM/GPRS vehicle location monitor according to claim 1 system, it is characterized in that: described GPS module is made up of frequency converter, signalling channel, microprocessor and storage unit.