CN102095422B - Highway safe driving and smooth traffic guide system and onboard driving guiding instrument - Google Patents
Highway safe driving and smooth traffic guide system and onboard driving guiding instrument Download PDFInfo
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Abstract
The invention relates to a highway safe driving and smooth traffic guide system and an onboard driving guiding instrument. The highway safe driving and smooth traffic guide system comprises a plurality of onboard driving guiding instruments, a driving communication network and a monitoring center, wherein the onboard driving guiding instrument includes a central processing unit, an input unit, an output unit, a data storage unit and a GPS module; the driving communication network comprises a mobile communication network, a mobile data transfer station, and the internet network, wherein the mobile communication network is connected with the mobile data transfer station; and the mobile data transfer station is connected with the monitoring center through the internet network. The highway safe driving and smooth traffic guide system solves the technical problems of the existing vehicle safety prewarning system, such as inaccurate detection, single hidden danger in detection, and incapability of instantly sending the emergency information, and can prompt drivers to avoid the risks so as to reduce the unnecessary traffic accidents in the highway.
Description
Technical field
The present invention relates to a kind of express way driving safety and protect smooth guidance system and vehicle-mounted traveling guidance appearance.
Background technology
Quick Ceng Zheng along with China's automobile pollution and turnout; The quick extension of highway and high-grade highway mileage; Because automobile rolls up, wagon flow does not stop on the road, and road traffic accident is increased considerably year by year; Cause a tremendous loss of lives and property loss, the traffic hazard on the highway is especially many.Expert analyze that the motor traffic accidents result shows, in the traffic hazard that is taken place, have 65% accident to belong to the rear-end collision collision and cause.
Existing automobile safety early-warning system often adopts detection techniques such as ultrasonic radar, microwave radar, millimeter radar; Just there is following defective in this: one, existing detection wave propagation mode all is rectilinear propagation; When bend, the gradient and automobile shake; Faults occurs through regular meeting, and they also receive external interference easily, cause safety pre-warning system rate of false alarm and rate of failing to report very high.Two, the potential safety hazard that existing safety pre-warning system detected is very single, weather can't be provided, cave in, road conditions such as geologic hazard are to the driver, slows down because the traffic hazard that natural disaster causes.Three, existing safety pre-warning system can't send to highway command centre immediately with detected emergence message, to reduce the accident of other vehicles.
Summary of the invention
For solve existing automobile safety early-warning system detect inaccurate, detect the technical matters that potential safety hazard is single, can't emergency condition be sent immediately, the present invention provides a kind of express way driving safety to protect smooth guidance system.
Technical solution of the present invention:
A kind of express way driving safety is protected smooth guidance system, comprises several vehicle-mounted traveling guidance appearance, driving communication network and monitoring center,
Said vehicle-mounted traveling guidance appearance comprises power-supplying circuit, clock unit, central processing unit, input block, output unit, data storage cell, GPS module, and said input block comprises display unit, and said output unit comprises keyboard;
Its special character is:
Said driving communication network comprises mobile communication network, mobile data terminal, Internet network, and said mobile communication network is connected with the mobile data terminal, and said mobile data terminal is connected with monitoring center through the Internet network,
Said vehicle-mounted traveling guidance appearance also comprises radio communication unit, inertia auxiliary positioning unit, alarm unit and the sound pronunciation control module that is connected with central processing unit respectively;
Said radio communication unit is four frequency radio communication units, is used for carrying out communication with mobile communication network;
Said sound pronunciation control module comprises loudspeaker and microphone, is used for communicating with each other through radio communication unit and monitoring center;
Said inertia auxiliary positioning unit comprises three inertial acceleration sensors, the vehicle real time navigation when being used to revise no gps signal;
Said alarm unit comprises danger button, is used to produce artificial alerting signal.
A plurality of roadside units that above-mentioned vehicle-mounted traveling guidance appearance also comprises wireless radio frequency circuit and is arranged on the roadside; Said roadside unit is a radio frequency reader, and said radio frequency reader is used to receive the vehicle real-time positioning information of wireless radio frequency circuit transmission and sends to monitoring center through mobile communication network.
Above-mentioned monitoring center comprises communication unit, data analysis prewarning unit, command scheduling unit and central database,
Said communication unit is to be used for receiving in real time vehicle communicating data, vehicle driving information and the artificial alerting signal that the Internet network transmits, and simultaneously system early warning and guidance information in the communicating data of monitoring center, artificial early warning information, the central database is sent to corresponding vehicle-mounted traveling guidance appearance through the Internet network;
Said data analysis prewarning unit is carried out the real-time analysis judgement to vehicle driving information and the system early warning and the guidance information that produce is stored in the central database;
Said central database is used for the running information of store car and system early warning and the guidance information that the data analysis prewarning unit produces;
Said command scheduling unit comprises vehicle dynamic display subsystem, warning processing subsystem, artificial early warning module; Said vehicle dynamic display subsystem comprises GIS server and monitoring large-size screen monitors display module, and said GIS server provides the numerical map support for monitoring large-size screen monitors display module, and said monitoring large-size screen monitors display module shows vehicle dynamic information and traffic information in real time; Said warning processing subsystem comprises warning processing module and voice call module; Said warning processing module is used to respond the artificial alerting signal that vehicle-mounted traveling guidance appearance sends; Said voice call module can realize the real-time conversation of monitoring center and vehicle; Said artificial early warning module is used to produce artificial early warning information.
Above-mentioned command scheduling unit also comprises the track of vehicle tracking module, and said track of vehicle tracking module can carry out playback to the driving trace of specific vehicle according to the vehicle driving information in the central database.
A kind of vehicle-mounted traveling guidance appearance comprises power-supplying circuit, clock unit, central processing unit, input block, output unit, data storage cell, GPS module, and said input block comprises display unit, and said output unit comprises keyboard;
Its special character is:
Said vehicle-mounted traveling guidance appearance also comprises radio communication unit, inertia auxiliary positioning unit, alarm unit and the sound pronunciation control module that is connected with central processing unit respectively;
Said radio communication unit is four frequency radio communication units, is used for carrying out communication with mobile communication network;
Said sound pronunciation control module comprises loudspeaker and microphone, is used for communicating with each other through radio communication unit and monitoring center;
Said inertia auxiliary positioning unit comprises three inertial acceleration sensors, the vehicle real time navigation when being used to revise no gps signal;
Said alarm unit comprises danger button, is used to produce artificial alerting signal.
Above-mentioned guided ware also comprises the wireless radio frequency circuit that links to each other with central processing unit, and said wireless radio frequency circuit is used to launch the vehicle running information.
Above-mentioned vehicle-mounted traveling guidance appearance also comprises the serial ports control module that links to each other with CPU; Said serial ports control module is used for the read-write control of CPU.
Above-mentioned data storage cell comprises non-power-failure preservation unit and high capacity storage unit, and it is the ferroelectric type storer that said non-power-failure is preserved the unit, and said high capacity storage unit is the miniSD card; Said clock unit adopts the SD2003API chip.
The advantage that the present invention had:
1, the present invention sets up contact through the Internet network with vehicle and monitoring center; Monitoring in real time operates in information such as the position, speed, direction, travel route of the vehicle of specifying the highway section; The place ahead stopped vehicle, slow-moving vehicle are monitored and carried out acousto-optic is the voice emergency alarms; The prompting human pilot is avoided risk, and reduces unnecessary traffic hazard on the highway.
2, the present invention is through being provided with the command scheduling unit in monitoring center; The highway running status can be understood through the monitoring large-size screen monitors or through the Internet network real-time by freeway management department, and the operator on duty can command through voice at the vehicle of specific road section real time running; Freeway management department can carry out playback to the specific vehicle driving trace; Public informations such as the road conditions in vehicle ' the place ahead, weather are broadcasted.
3, the vehicle-mounted traveling guidance appearance of the present invention is provided with voice call, and freeway management department can broadcast at all vehicles of specific road section going, and also can carry out voice call with specific vehicle; Make the driver can in time understand the road safety situation fast.
4, the inertia auxiliary positioning unit comprises three inertial acceleration sensors, and the vehicle real time navigation when being used to revise no gps signal guarantees the uninterrupted navigation of vehicle.
5, aided positioning system comprises that the wireless radio frequency circuit that is installed on the car-mounted terminal and roadside, road fixed intervals are apart from the radio frequency reader of installing; When vehicle passes through; Radio frequency reader can read the identifying information that wireless radio frequency circuit sends on the car-mounted terminal, time and the position passed through through data communication forwarding unit registration of vehicle then.Aided positioning system is mainly used in tunnel, bridge etc. and can't accepts the location of gps signal driving vehicle is located.
6, the current radio-frequency card of the also alternative present vehicle on highway of aided positioning system is realized the upgrading of Fare Collection System and the simplification of toll administration.
Description of drawings
Fig. 1 protects the structural representation of smooth guidance system for express way driving safety of the present invention;
Fig. 2 is the structural representation of the vehicle-mounted traveling guidance appearance of the present invention;
Fig. 3 is the structural representation of monitoring center of the present invention.
Embodiment
As shown in Figure 1; Express way driving safety is protected smooth guidance system; Comprise several vehicle-mounted traveling guidance appearance, driving communication network and monitoring center; Vehicle-mounted traveling guidance appearance comprises power-supplying circuit, clock unit, central processing unit, input block, output unit, data storage cell, GPS module, and said input block comprises display unit, and said output unit comprises keyboard; The driving communication network comprises mobile communication network, mobile data terminal, Internet network; Mobile communication network is connected with the mobile data terminal; The mobile data terminal is connected with monitoring center through the Internet network, and vehicle-mounted traveling guidance appearance also comprises radio communication unit, inertia auxiliary positioning unit, alarm unit and the sound pronunciation control module that is connected with central processing unit respectively; Radio communication unit is four frequency radio communication units, is used for carrying out communication with mobile communication network; The sound pronunciation control module comprises loudspeaker and microphone, is used for communicating with each other through radio communication unit and monitoring center; The inertia auxiliary positioning unit comprises three inertial acceleration sensors, the vehicle real time navigation when being used to revise no gps signal; Alarm unit comprises danger button, is used to produce artificial alerting signal.
A plurality of roadside units that vehicle-mounted traveling guidance appearance also comprises wireless radio frequency circuit and is arranged on the roadside; Said roadside unit is a radio frequency reader, and said radio frequency reader is used to receive the vehicle real-time positioning information of wireless radio frequency circuit transmission and sends to monitoring center through mobile communication network.
Monitoring center comprises communication unit, data analysis prewarning unit, command scheduling unit and central database,
Communication unit is to be used for receiving in real time vehicle communicating data, vehicle driving information and the artificial alerting signal that the Internet network transmits, and simultaneously system early warning and guidance information in the communicating data of monitoring center, artificial early warning information, the central database is sent to corresponding vehicle-mounted traveling guidance appearance through the Internet network;
The data analysis prewarning unit is carried out the real-time analysis judgement to vehicle driving information and the system early warning and the guidance information that produce is stored in the central database;
Central database is used for the running information of store car and system early warning and the guidance information that the data analysis prewarning unit produces;
The command scheduling unit comprises vehicle dynamic display subsystem, warning processing subsystem, artificial early warning module; Said vehicle dynamic display subsystem comprises GIS server and monitoring large-size screen monitors display module, and said GIS server provides the numerical map support for monitoring large-size screen monitors display module, and monitoring large-size screen monitors display module shows vehicle dynamic information and traffic information in real time; The warning processing subsystem comprises warning processing module and voice call module; The warning processing module is used to respond the artificial alerting signal that vehicle-mounted traveling guidance appearance sends; Said voice call module can realize the real-time conversation of monitoring center and vehicle; Said artificial early warning module is used to produce artificial early warning information.
The command scheduling unit also comprises the track of vehicle tracking module, and the track of vehicle tracking module can carry out playback to the driving trace of specific vehicle according to the vehicle driving information in the central database.
The present invention also provides a kind of vehicle-mounted traveling guidance appearance; As shown in Figure 2; Comprise power-supplying circuit, clock unit, central processing unit, input block, output unit, data storage cell, GPS module, said input block comprises display unit, and said output unit comprises keyboard; Vehicle-mounted traveling guidance appearance also comprises radio communication unit, inertia auxiliary positioning unit, alarm unit and the sound pronunciation control module that is connected with central processing unit respectively; Radio communication unit is four frequency radio communication units, is used for carrying out communication with mobile communication network;
The sound pronunciation control module comprises loudspeaker and microphone, is used for communicating with each other through radio communication unit and monitoring center; The inertia auxiliary positioning unit comprises three inertial acceleration sensors, the vehicle real time navigation when being used to revise no gps signal; Alarm unit comprises danger button, is used to produce artificial alerting signal.
Guided ware also comprises the wireless radio frequency circuit that links to each other with central processing unit, and said wireless radio frequency circuit is used to launch the vehicle running information.Vehicle-mounted traveling guidance appearance also comprises the serial ports control module that links to each other with CPU; The serial ports control module is used for the read-write control of CPU.Data storage cell comprises non-power-failure preservation unit and high capacity storage unit, and it is the ferroelectric type storer that non-power-failure is preserved the unit, and the high capacity storage unit is the miniSD card; Clock unit adopts the SD2003API chip.
Native system is different from ordinary GPS navigation or vehicle management system; The main design object of system is that the operation of monitoring vehicle on expressway is dynamic; In real time operational vehicle is carried out safe guidance; Make the vehicle drive personnel under severe weather conditions such as cloudy day, rainy day, greasy weather, can in time grasp the place ahead traffic information, take necessary means to avoid risk, for the expressway safety operation provides technical support.
Central processing unit adopts low-power consumption dual uart mouth, and the high-speed CPU of U.S. Lilabs company is as core, and model is: C8051F020.The C8051F single-chip microcomputer is fully-integrated mixed-signal system level chip (SoC); Have the high speed CIP-51 kernel compatible with 8051; Compatible fully with the MCS-51 instruction set, chip integration has become simulation, digital peripherals and other functional parts used always in the data acquistion and control system; Built-in FLASH program storer, internal RAM, most of device inside is positioned at the RAM in external data memory space, i.e. XRAM in addition.The C8051F single-chip microcomputer has debug circuit in the sheet, the jtag interface through 4 pin can carry out non-intrusion type, at full speed in system debug.
The GSP module adopts Korea S GSTAR high-precision GPS (GS-15B) as positioning equipment.
Four high reliability of wireless communication unit employing frequently SIM900B modules are as the GSM/GPRS communication device.
Vehicle real time navigation when the inertia auxiliary positioning unit is used to revise no gps signal.Model: three inertial acceleration sensors of TG-3 type; It is that a size is exquisite, cost performance is high, with voltage output and there is not the acceleration transducer of direct current biasing; Being widely used in attitude corrects; Inertial navigation, a plurality of test control such as mechanical vibration test, contact displacement measurement, geologic prospecting, seismic event measurement, the detection of electric rotating machine beat field.This sensor has that volume is little, simple installation, measuring accuracy height, high conformity, characteristics such as anti-interference, can satisfy the diversified requirement of user.
Data are preserved the unit and are used to preserve real-time vehicle condition information: comprise non-power-failure preservation unit and mass storage.Select the non-power-failure of the ferroelectric type storer completion data of high reliability to preserve memory capacity: 256Kbit; Select portable miniSD card as mass storage, memory capacity: 4GKbyte realizes: greater than 1,000,000 real-time data records.
Clock unit adopts the SD2203API chip.Chip SD2003API is a kind of high precision real-time timepiece chip with built-in crystal oscillator, support I2C EBI.This family chip can guarantee that clock accuracy is ± 4ppm (under 25 ± 1 ℃), and promptly year error was less than 2 minutes, and this family chip can satisfy the various needs to real-time timepiece chip.
Wireless radio frequency circuit adopts the RC500 RC500 chip of PHILIPS Co. to control transceiving chip as radio frequency.Characteristics: reliability is high, and the radio-frequency card that combines with it mainly contains Mifare one S50, Mifare one S70 card.All there are 32 conduct protections of key each sector of card, and the read/writable of key can be accomplished selection simultaneously, has avoided the possibility of method of exhaustion decryption.It belongs to the read-write card of high performance-price ratio, and its read or write speed is fast, radio range can accomplish that 120M, memory capacity are respectively 32K, 64K and do not wait.
The serial ports control module: the exchanges data of traveling guidance appearance and host computer and parameter setting adopt the RS232 interface bus, and the chip model is SP3232API.Can accomplish the functions such as preservation demonstration of the uploading of real-time parameter, parameter setting and storage data.
Power-supplying circuit adopts the power supply of 4 joints, 2032 high-capacity batteries, and capacity guarantees 48 hours operate as normal greater than 4000mA.
The front end terminal device that vehicle-mounted traveling guidance appearance is the composition system, its major function:
Gather locating information in real time:, rely on the GPS module to gather the GPS positional information in real time in the highway section that possesses gps signal; In the location that does not have gps signal, rely on the ancillary technique means to obtain locating information, such as adopting radio-frequency technique to realize assist location.
Send locating information in real time: through communication unit monitoring center is arrived in the locating information timed sending of vehicle, converting corresponding format to; Channel through mobile communication network receives the voice segments index information, plays the relevant voice section, and these voice segments mainly are road condition advisory, weather conditions prompting etc.
Channel through mobile communication network receives obstacle car alarming information: warning message mainly comprises the range data of obstacle vehicle, and car-mounted terminal makes up corresponding voice segments according to the range data of obstacle vehicle, plays then.
The front and back prompting vehicle distance: information such as the distance of the reception front and back vehicle through mobile communication network and speed, play according to these information car-mounted terminals combination relevant voice sections.
Behaviors such as tune violating the regulations broadcast special sound section to driving the place ahead occurs is pointed out.
According to the instruction that the channel of mobile communication network receives, open the voice channel of mobile communication network, the real-time voice audio frequency that is sent by administrative authority is put in broadcasting.
Freeway management department can converse through the channel and the specific vehicle of mobile communication network.The monitor vehicle travelling speed
According to GPS information calculations real-time vehicle running speed, compare according to the actual speed limit of the specific road section that stores in advance then, and before hypervelocity, play the special sound section and point out.
Warning function: the vehicle drive personnel in case of emergency; Can be through eye-catching button on the traveling guidance appearance; Send warning message to monitoring center; The operator on duty of monitoring center understands the warning vehicle location through the monitoring screen, and the GSM voice channel of the vehicle of can opening and report to the police engages in the dialogue the understanding details.
Aided positioning system comprises that the wireless radio frequency circuit that is installed on the car-mounted terminal and roadside, road fixed intervals are apart from the radio frequency reader of installing; When vehicle passes through; Radio frequency reader can read the identifying information that wireless radio frequency circuit sends on the car-mounted terminal, time and the position passed through through data communication forwarding unit registration of vehicle then.Aided positioning system is mainly used in tunnel, bridge etc. and can't accepts the location of gps signal driving vehicle is located.
The driving communication network is changed, stores into the vehicle operation data and the alert data of the traveling guidance appearance collection of receiving in the database server through mobile communication network; The car alarming instruction of simultaneously monitoring center being sent sends to mobile communication network, sends to car-mounted terminal by mobile communication network again.
Monitoring center is responsible in real time vehicle operation data being analyzed, and produces alarm command, sends warning message through communication unit then.
Central database is preserved the vehicle ' basic data, for administrative authority inquires about, adds up, analyzes and provide support afterwards.
The GIS server is responsible for the monitoring large-size screen monitors and through Internet network inquiry running status the numerical map support is provided.
Surveillance center also can realize each subsystem functions such as vehicle operating warning, data forwarding, magnitude of traffic flow statistical study, the dynamic demonstration of vehicle operating, provides convenience for administrative authority in real time, dynamically grasps traffic conditions.
Surveillance center can connect with existing highway tolling system through interface, obtains information such as vehicle license, searches vehicle for administrative authority and facilitates.
System of the present invention operating scheme:
Be the granting of entering vehicle, installation traveling guidance appearance in all expressway accesses; Vehicle is during highway goes; The traveling guidance appearance obtains Vehicular behavior in real time, comprises the information such as speed, position of vehicle ', and information real-time is sent to monitoring center.
Monitoring center monitors the position and the speed of all vehicles in real time; And remind human pilot to note dodging the place ahead fault vehicle with voice and acousto-optic mode through the traveling guidance appearance; For driving vehicle provides safe guidance; Allow freeway management department that driving vehicle and fault vehicle are monitored and voice call in real time simultaneously, for road management provides support.
When vehicle safety rolls highway away from, return the traveling guidance appearance, so that continue to provide the vehicle of giving entering at expressway exit.
The circuit board element point glue of vehicle-mounted traveling guidance appearance is reinforced; The anti-skidding protection of the flute profile of leaning to one side silica gel handle; Employing adds the shell of stem thickening, sliding fastening lock battery cover, and machine falls for 1.5 meters does not have damage; Special processing of circuit can effectively be resisted battery and disturb, and guarantees data security; High-precision Mold Making, totally enclosed enclosure designs effectively prevents the invasion of rainwater, guarantees the safe handling of outdoor rainwater weather; Use vehicle power (cigar lighter) power supply, the band rechargeable battery dashes electricity by vehicle power during cruising, and battery-powered behind the vehicle lay-off, battery-powered time was greater than 24 hours.
Claims (6)
1. an express way driving safety is protected smooth guidance system, comprises several vehicle-mounted traveling guidance appearance, driving communication network and monitoring center,
Said vehicle-mounted traveling guidance appearance comprises power-supplying circuit, clock unit, central processing unit, input block, output unit, data storage cell, GPS module, and said input block comprises display unit, and said output unit comprises keyboard;
It is characterized in that:
Said driving communication network comprises mobile communication network, mobile data terminal, Internet network, and said mobile communication network is connected with the mobile data terminal, and said mobile data terminal is connected with monitoring center through the Internet network,
Said vehicle-mounted traveling guidance appearance also comprises radio communication unit, inertia auxiliary positioning unit, alarm unit, sound pronunciation control module and the serial ports control module that is connected with central processing unit respectively;
Said radio communication unit is four frequency radio communication units, is used for carrying out communication with mobile communication network;
Said sound pronunciation control module comprises loudspeaker and microphone, is used for communicating with each other through radio communication unit and monitoring center;
Said inertia auxiliary positioning unit comprises three inertial acceleration sensors, the vehicle real time navigation when being used to revise no gps signal;
Said alarm unit comprises danger button, is used to produce artificial alerting signal;
Said serial ports control module links to each other with CPU; Said serial ports control module is used for the read-write control of CPU, and said serial ports control module adopts the RS232 interface bus; Said monitoring center comprises communication unit, data analysis prewarning unit, command scheduling unit and central database,
Said communication unit is to be used for receiving in real time vehicle communicating data, vehicle driving information and the artificial alerting signal that the Internet network transmits, and simultaneously system early warning and guidance information in the communicating data of monitoring center, artificial early warning information, the central database is sent to corresponding vehicle-mounted traveling guidance appearance through the Internet network;
Said data analysis prewarning unit is carried out the real-time analysis judgement to vehicle driving information and the system early warning and the guidance information that produce is stored in the central database;
Said central database is used for the running information of store car and system early warning and the guidance information that the data analysis prewarning unit produces;
Said command scheduling unit comprises vehicle dynamic display subsystem, warning processing subsystem, artificial early warning module; Said vehicle dynamic display subsystem comprises GIS server and monitoring large-size screen monitors display module, and said GIS server provides the numerical map support for monitoring large-size screen monitors display module, and said monitoring large-size screen monitors display module shows vehicle dynamic information and traffic information in real time; Said warning processing subsystem comprises warning processing module and voice call module; Said warning processing module is used to respond the artificial alerting signal that vehicle-mounted traveling guidance appearance sends; Said voice call module can realize the real-time conversation of monitoring center and vehicle; Said artificial early warning module is used to produce artificial early warning information.
2. protect smooth guidance system according to claims 1 described express way driving safety; It is characterized in that: a plurality of roadside units that said vehicle-mounted traveling guidance appearance also comprises wireless radio frequency circuit and is arranged on the roadside; Said roadside unit is a radio frequency reader, and said radio frequency reader is used to receive the vehicle real-time positioning information of wireless radio frequency circuit transmission and sends to monitoring center through mobile communication network.
3. express way driving safety according to claim 1 and 2 is protected smooth guidance system; It is characterized in that: said command scheduling unit also comprises the track of vehicle tracking module, and said track of vehicle tracking module can carry out playback to the driving trace of specific vehicle according to the vehicle driving information in the central database.
4. one kind is used for the vehicle-mounted traveling guidance appearance that the described express way driving safety of claim 1 is protected smooth guidance system; Comprise power-supplying circuit, clock unit, central processing unit, input block, output unit, data storage cell, GPS module; Said input block comprises display unit, and said output unit comprises keyboard;
It is characterized in that:
Said vehicle-mounted traveling guidance appearance also comprises radio communication unit, inertia auxiliary positioning unit, alarm unit and the sound pronunciation control module that is connected with central processing unit respectively;
Said radio communication unit is four frequency radio communication units, is used for carrying out communication with mobile communication network;
Said sound pronunciation control module comprises loudspeaker and microphone, is used for communicating with each other through radio communication unit and monitoring center;
Said inertia auxiliary positioning unit comprises three inertial acceleration sensors, the vehicle real time navigation when being used to revise no gps signal;
Said alarm unit comprises danger button, is used to produce artificial alerting signal;
Said vehicle-mounted traveling guidance appearance also comprises the serial ports control module that links to each other with CPU; Said serial ports control module is used for the read-write control of CPU, and said serial ports control module adopts the RS232 interface bus.
5. vehicle-mounted traveling guidance appearance according to claim 4, it is characterized in that: said guided ware also comprises the wireless radio frequency circuit that links to each other with central processing unit, said wireless radio frequency circuit is used to launch the vehicle running information.
6. according to claim 4 or 5 described vehicle-mounted traveling guidance appearance; It is characterized in that: said data storage cell comprises non-power-failure preservation unit and high capacity storage unit; It is the ferroelectric type storer that said non-power-failure is preserved the unit, and said high capacity storage unit is the miniSD card; Said clock unit adopts the SD2003API chip.
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