CN102595325A - Wireless intelligent system for transmitting and controlling vehicle information and method thereof - Google Patents

Abstract

The invention relates to a wireless intelligent system for transmitting and controlling vehicle information and a method thereof. The wireless intelligent system for transmitting and controlling vehicle information is used for transmitting the vehicle information of an intelligent vehicle in real time to a user through a wireless serial module, a wireless communication Zigbee protocol and a GSM (Global System for Mobile Communications) module and controlling start, stop and speed of the vehicle by remote control; a microcontroller is adopted for processing a wireless serial sending module; the information of the position, the course, the latitude, the longitude, the acceleration of the vehicle and the temperature in the vehicle can be accurately obtained by using an inertial navigator (VG700AADMU), a GPS (Global Positioning System) mobile receiving station and a temperature sensor; the information is sent to a remote host computer through the wireless serial module for monitoring the information; and the information is sent to a mobile phone of a designated user in fixed time through the GSM module at the host computer. According to the device, the user can better understand the running status, the temperature and the positioning status of the intelligent vehicle; the intelligent vehicle can be remotely controlled to stop through the information sent by the wireless serial module and the GSM module; meanwhile, the control accuracy and the safety performance of the intelligent vehicle can be enhanced.

Description

A kind of intelligent wireless vehicle message transmission and control system and method thereof

One, technical field:

The invention belongs to automotive field, relate to a kind of intelligent wireless vehicle message transmission and control system.

Two, background technology:

Intelligent vehicle is the important component part of intelligent transportation system; Intelligent vehicle is realized unmanned and important carrier driver assistance especially; Because nobody is driven in onboard to set out on a journey and goes and when testing; The fortuitous event that occurs easily and can't carry out emergency treatment or come not change in a hurry artificial and stop is so cause a serious accident easily; Simultaneously owing to do not have vehicle monitoring temperature and location, vehicle that theft and on fire takes place easily.The present invention is intended to solve the long-range information gathering of intelligent vehicle and control system, and to also have warning device be the technology of monitor vehicle transport condition; Intervene through remote-wireless transmission and to make it keep safety traffic; Overcome simultaneously traditional driver assistance not to the concrete condition of vehicle in time through the long-range user's information of vehicles that is transferred to, can not avoid theft and follow the tracks of vehicle location and vehicle interior temperature is monitored.

Three, summary of the invention:

The teleprocessing of the fortuitous event that the information remote transmission that the present invention is primarily aimed at intelligent vehicle occurs in unmanned with intelligent vehicle and prevent vehicle stolen with car in the fireproof safety problem, overcome in unmanned and the driver assistance safety factor entirely of vehicle-state monitoring.The fail safe and the vehicle anti-theft protection system of going for intelligent vehicle provide effective guarantee.

For realizing that the technical scheme that above-mentioned purpose the present invention adopts is:

A kind of intelligent wireless vehicle message transmission and control system; Comprise that host computer (1), GPS move receiving station (2), inertial navigator (3), gsm module (4), MCU microcontroller (5), temperature sensor (6), Zigbee wireless serial module (7), handheld device (8); GPS moves the position and the latitude and longitude information of receiving station (2) collection vehicle and is sent to host computer (1); The acceleration and the course angle information of inertial navigator (3) collection vehicle also is sent to host computer (1); Temperature sensor (6) is gathered vehicle interior temperature information and is sent to host computer (1) through MCU microcontroller (5), and host computer (1) sends cell-phone customer terminal with above-mentioned all information that collect through gsm module (4); Handheld device (8) is sent to host computer (1) to control signal through Zigbee wireless serial module (7) and MCU microcontroller (5), and the actuator of host computer (1) control system controls vehicle running state.

A kind of intelligent wireless vehicle message transmission and control method; Comprise following steps: host computer (1) judges whether to receive MCU microcontroller (4) and interrupts from wireless serial module (7), the acceleration that reads locating information that GPS moves receiving station (2) collection vehicle, inertial navigator (3) collection vehicle and course angle information attitude information, temperature sensor (6) the collection vehicle interior temperature information of sending through MCU microcontroller (5); Microcontroller (5) collecting temperature sensor information is also handled, and is transferred to host computer, judges whether to have exceeded maximum safe temperature simultaneously, if exceed the control buzzer warning.Do not send to cell-phone customer terminal if exceed packing vehicle location attitude temperature information through gsm module (3).Handheld device (8) can be imported vehicle running state through keyboard, and sends through wireless serial.

Use the wireless serial module of Zigbee agreement; Gsm module; The transmission and the reception of microcontroller MC9SDG128B control wireless serial and gsm module, and collecting temperature sensor information, application host computer computer expert crosses serial ports collection (VG700AADMU) inertial navigator and GPS moves receiving station's information.Wherein the Zigbee module is for using the wireless serial information that (MC9SDG128B) MCU handles.Use the VG700AADMU inertial navigator to gather body gesture information; TMP04 measures vehicle interior temperature, and its temperature range is-25 ℃ to+100 ℃.

Four, beneficial effect

Through gathering the effectively transport condition of monitor vehicle of real-time vehicle attitude, position, temperature, driving mode information, and stolen or give the alarm when catching fire at vehicle, can send to client's mobile phone end by real-time tracking vehicle location.And can also pass through radio hand-held equipment (through wireless serial) change vehicle ' parameter, effectively improve the degree of safety of unmanned or driver assistance and the inherently safe protection of vehicle.

Five, description of drawings:

Accompanying drawing 1 is an intelligent wireless vehicle transmission system block diagram

Accompanying drawing 2 is the handhold device system block diagram

Accompanying drawing 3 is the systems approach flow chart

Accompanying drawing 4 is a Zigbee template pattern connection layout

Accompanying drawing 5 is the alarm circuit system electrical schematic

Six, embodiment:

A kind of intelligent wireless vehicle message transmission and control system; Be by two microcontroller MCU (MC9SDG128B), gsm module TC35, JNSGyro-4GPS move that receiving station, VG700AADMU inertial navigator, TMP04 temperature acquisition transducer, keyboard, liquid crystal display screen, host computer computer VS2008 program form.

Its algorithm and workflow are following:

1, adopts CnComm serial ports class through host computer VS2008 serial ports capture program, move receiving station from JNSGyro-4GPS and receive information, use the NMEA agreement information of carrying out and unpack, collect longitude and latitude, and convert the vehicle body coordinate into through coordinate transform.

2, the course angle of gathering body gesture information car of the agreement DMU through decoding VG700AA, the angle of pitch, flip angle, three axial acceleration informations.

3, through the decoding packing car body positional information and attitude information are saved in the host computer computer; And through transmitting and gather the temperature value of MCU (MC9SDG128B) collection TMP04; Receive the command signal of coming with wireless serial; Directly send to host computer through serial ports, and use parity check and confirm whether the transmission value that obtains is correct.

4, judge whether the temperature value and the vehicle running state information that collect do not meet the cruising standard, like undesired startup buzzer warning.

5,,, to the cellphone subscriber, can let the cellphone subscriber understand vehicle-state through the gsm module timed sending by making protocol packing by oneself and setting verification scheme with the information that collects.

6, radio hand-held equipment is set, uses the keyboard input and send preset mode or start the anxious information of stopping.

Be illustrated in figure 1 as its system block diagram; Cross serial ports through the host computer computer expert and gather the information that JNSGyro-4GPS moves receiving station and VG700AADMU inertial navigator; The information of using transmission collection microcontroller MCU (MC9SDG128B) collecting temperature information, wireless serial module to transmit; Keyboard input information also is transferred to host computer and integrates packing, sends to the cellphone subscriber through gsm module.Send to the running status of the cellphone subscriber's monitor vehicle that has configured through different mode.

Hand-held wireless device system diagram as shown in Figure 2; It is made up of microcontroller MCU (MC9SDG128B), LCD liquid crystal display screen, keyboard, wireless serial equipment; Concurrent the losing one's life when making of hand-held wireless device keyboard input receives command information and decoding through the wireless Zigbee agreement of employing wireless serial ports, and is transferred to host computer through transmission collection microcontroller MCU (MC9SDG128B); Host computer sends order and gives other control system, adjusts the vehicle ' parameter.

Fig. 3 is the systems approach flow chart; Insert the serial communication modular in the microcontroller through wireless serial; Microcontroller is set as reception to interrupt; When transmitting information wirelessly, be transferred to the host computer computer through microcontroller MCU, host computer sends to actuator and orders and control the transport condition that handheld device sets.

(1). use Moxa UPort1250 connection host computer computer and GPS and move receiving station's reception vehicle location information, applying GPS NMEA-0183 protocol analysis, UTC time, latitude (degree divides); Latitude (north and south), longitude (degree divides), longitude (thing), GPS state; Number of satellite, the HDOP Horizontal Dilution of Precision, height above sea level, earth ellipsoid is the height of level surface relative to the earth; The difference time, difference station ID number, check value.Obtain needed locating information through analysis protocol.And the GPS latitude and longitude coordinates is changed into plane coordinates with method for simplifying.

(2). use Moxa UPort1250 and connect host computer computer and DMU inertial navigator measurement body gesture information, its DMU data pack protocol is: Header (255) Roll Angle (most-significant byte) Roll Angle (least-significant byte) Pitch Angle (most-significant byte) Pitch Angle (least-significant byte) Roll Rate (most-significant byte) Roll Rate (least-significant byte) Pitch Rate (most-significant byte) Pitch Rate (least-significant byte) Acceleration X (most-significant byte) Acceleration X (least-significant byte) Acceleration Y (most-significant byte) Acceleration Y (least-significant byte) Acceleration Z (most-significant byte) Acceleration Z (least-significant byte) Temp Voltage (most-significant byte) Temp Voltage (least-significant byte) Time (most-significant byte) Time (least-significant byte) Checksum

I. calculate the Yaw course angle and need given initial value and integration, its initial value is the w degree, uses following formula integration:

$\mathrm{Yaw}=w+{\∫}_0^b\left(\mathrm{YawRate}\right)\mathrm{dt}$

B is the update time of setting

Ii. find FF packet header, extract low eight information of high eight-bit of each attitude, calculation check and also checking.

Through MCU microcontroller collecting temperature information, and send host computer procedure to through the serial ports of microcontroller.

Judge whether the temperature of gathering surpasses the safe temperature of setting;

If I. surpass safe temperature, how many microcontroller PWM modules comes to confirm Alert Level according to what surpass amount, controls the duty ratio of PWM, controls the sound that buzzer sends different frequency.

If II. do not surpass safe temperature, with the GPS information that collects, vehicle attitude information, temperature information sends protocol packing and sends specific user's mobile phone end through GSM.

Fig. 4 connects CPU control I/O mouth for using microcontroller M0 mouth, and short circuit DEVICE terminal, TX2 connect the RX pin of the MAX232 on the microcontroller, and RX2 connects the TX pin of the MAX232 on the microcontroller.

Fig. 5 is warning circuit figure, controls the sound of buzzer at different mode through microcontroller PWM ripple, points out the rank of alarm different.

Claims (2)

1. intelligent wireless vehicle message transmission and control system; It is characterized in that: comprise that host computer (1), GPS move receiving station (2), inertial navigator (3), gsm module (4), MCU microcontroller (5), temperature sensor (6), Zigbee wireless serial module (7), handheld device (8);

GPS moves the position and the latitude and longitude information of receiving station (2) collection vehicle and is sent to host computer (1); The acceleration and the course angle information of inertial navigator (3) collection vehicle also is sent to host computer (1); Temperature sensor (6) is gathered vehicle interior temperature information and is sent to host computer (1) through MCU microcontroller (5), and host computer (1) sends cell-phone customer terminal with above-mentioned all information that collect through gsm module (4); Handheld device (8) is sent to host computer (1) to control signal through Zigbee wireless serial module (7) and MCU microcontroller (5), and the actuator of host computer (1) control system controls vehicle running state.

2. intelligent wireless vehicle message transmission and control method; It is characterized in that comprising following steps: host computer (1) judges whether to receive the interruption from MCU microcontroller (4) wireless serial module (7), and the temperature sensor (6) that read acceleration and the course angle attitude information of locating information that GPS moves receiving station (2) collection vehicle, inertial navigator (3) collection vehicle, sends through MCU microcontroller (5) is gathered vehicle interior temperature information; Microcontroller (5) collecting temperature sensor information is also handled, and is transferred to host computer, judges whether to have exceeded maximum safe temperature simultaneously, if exceed the control buzzer warning.Do not send to cell-phone customer terminal if exceed packing vehicle location attitude temperature information through gsm module (3).Handheld device (8) can be imported vehicle running state through keyboard, and sends driving information through wireless serial.

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