Te whakatinana i te punaha taatai ​​waka i runga i te OBD me te GPS

I te ahuru o te waka, te paahitanga me etahi atu take e pa ana ki te aro nui, kua hangaia he punaha waka e hangai ana ki te OBD me te GPS. I hangaia te punaha mai i nga waahanga e rua, kotahi te

Based on the OBD interface to collect real-time data of the vehicle during driving, the acquisition circuit is designed to connect with the OBD system of the car by using the EST527-minis car networking OBD module to read the real-time operating parameters of the car while driving, so that the car owner can pass this system More intuitively understand the real-time parameters of the vehicle, and have a more comprehensive understanding of the vehicle condition, thereby reducing potential safety hazards. The second is to realize the accurate positioning of the vehicle through the GPS module on the basis of obtaining the information of the vehicle, and use the DSRC technology to realize the real-time interaction of various information between the vehicles to ensure that the vehicle is in a safe driving state. By mounting the system on a real vehicle, testing the functions of each part of the entire terminal device, the expected goal was achieved.

GM-200

Na te tere tipu o te motuka, he maha nga raru o te waka na tenei kua kaha ake te aro atu, penei i te ahuru, te ahuru i te taiao, me te raru o te huarahi.

Tatari Mai i te tirohanga o te ahuru taraiwa, he mea nui kia mau tonu te tawhiti i waenga o nga motuka me te taraiwa kia ata. Ma te mohio ki te tawhiti i waenga o nga waka ka taea te whakatau pai i aua raru. I te ine i te tawhiti i waenga o nga waka, ko te hangarau inenga tawhiti ultrasonic he tikanga inenga tawhiti e whakamahia ana, engari ko nga taiao taiao inenga tawhiti he tino teitei a kaore i tino tika te tika. I tenei wa ko Lidar tetahi tikanga hihiri tino pai. Ka whakamahia i te nuinga o nga wa ki nga whakamatautau rangahau putaiao tiketike me nga whakamatautau penei i nga waka kore tangata. He utu nui. Ka whakamahia te Lidar Tangata mo te huri i te inenga tawhiti i roto i te 3m. Ko enei momo punaha tiaki tawhiti e hiahia ana kia nui te taiao whakahaere me te utu nui, a kaore e taea te whakatutuki i nga whakaritenga o te punaha whakamaumahara i te tawhiti haumaru mo nga waka taangata noa.

I tenei wa, kei te whakamahia te punaha whakatere GPS-waka na te painga o te tuunga tiketike, te utu iti, me te whakamahi watea. Te ine i te tawhiti i waenga o nga waka ma te GPS kua puta

Mo te tuuturu. Ko te hangarau whakawhitiwhitinga Ipurangi DSRC Ipurangi mo nga Waka kua oti te whakamahi i nga wa katoa mo te kawe waka mohio i roto i enei tau, ka taea te whakarite i waenga i nga waka tere.

I te wa ano, kei te hiahia ano nga taraiwa ki te mohio ki etahi korero i te wa e taraiwa ana a raatau motuka, kia mohio ai te whakahaere o te waka. Ko te whakatairanga o te hangarau OBD-II he maama ake mo te iwi ki te tiki i enei tuhinga. Ko te whakawhanaketanga tonu o te hangarau Ipurangi o Nga Waka e whakarato ana i te papa mo te whakauru i nga momo waahanga.

This system makes full use of the multi-mode fusion characteristics of the Internet of Vehicles platform, and designs a vehicle terminal system based on OBD and GPS. The system uses the comprehensive and fast characteristics of OBD to collect vehicle data, GPS technology positioning and ranging functions, and DSRC technology transmission The real-time nature of the data collects vehicle information and surrounding road information, filters, calculates, and distributes it through the processor to realize the information interaction between vehicles and roads. This article uses data splicing technology to effectively solve the fragmentation problem in the process of data collection and distribution, to ensure the correctness of data transmission, and to avoid the disadvantages of expensive distance measuring devices and high requirements for distance measuring conditions in the prior art, making vehicles in complex situations Accurate data information can still be obtained by downloading, which greatly improves the driving safety of the vehicle, and realizes that the various data of the car when the car is driving can be presented to the user in a simple and intuitive manner, which is convenient for the user to use.

200

1 Te punaha hoahoa kaupapa katoa

I muri i te wetewetenga o nga tono o te punaha, kua hoahoahia te anga katoa o te punaha, e whakaaturia ana i te Whakaahua 1. E toru nga waahanga o te punaha: ko te raupaparorohiko me te taputapu, ko te tuatahi

Ko tetahi waahanga ko te whakamahere i tetahi kohinga kohinga mo te punaha OBD o runga motuka o te motuka, na roto i enei ko nga korero tuuturu i te wa e taraiwa ana te waka. ko te waahanga tuarua he waahanga e whakamahi ana i nga raraunga GPS kia tutuki ai te taunekeneke korero ma roto i te DSRC; ko te waahanga tuatoru e pa ana ki nga kohinga kua kohia Ko nga tuhinga kua hoahoahia, tae atu ki nga LED me nga taputapu waea, kia taea ai e nga kaiwhakamahi te whakatika i nga ahuatanga o te waka.

1. 1 Te hanganga punaha katoa

Ko tenei punaha e hangai ana ki te hoahoatanga o te OBD o runga-papa me te punaha GPS i runga-poari GPS. Ko te punaha whakaeke-motuka ka whakawhiwhia ki nga tuhinga taraiwa wa-tuuturu o te waka me nga korero tuuturu o etahi o nga motuka waka, me nga korero korero mo te waahanga whakaturanga GPS, me te tohatoha korero me etahi atu waka na roto i te whakawhitiwhiti korero whakawhiti waka waka DSRC. kōwae. pakiaka

Tatau i te tawhiti haumaru i waenga i nga waka e rua i runga i te tere o te waka me te tere o te waka e whaaia ana. I te wa ano, tatau i te tawhiti pono i waenga i nga waka e rua na roto i nga korero GPS, whakaatu i nga korero tawhiti kua tae mai i runga i te mata LED, me te whakawa mena ko te tawhiti tonu mena he iti ake i te tawhiti haumaru, ka whakatupatohia te taraiwa. Ko te miihini whakawhiti korero a Nihokikorangi ka whakamahia hei huarahi whakawhiti korero i waenga i te taunga waka me te taputapu pukoro, me nga waahanga wehewehe me nga waahanga mahi kua hangaia.

DF

1.2 Kaupapa hoahoa mo te waahanga whiwhi tuhinga OBD

I whanau mai te punaha OBD hei aukati i te whakaputanga o te motuka motuka. Ki te whanaketanga o te hangarau, te waka whakamahia whanui

Ko te diagnosis system is OBD-Ⅱ, and the most advanced OBD-Ⅲ has been able to enter the system ECU (computer) to read the fault code and related data, and use the small on-board communication system to convert the vehicle’s identity code, fault code and location Such information is automatically notified to the management department. Considering the current diagnostic interface chips on the market and comparing with other chips, we finally chose Est527_minis as the core of the hardware circuit design. At the same time, EST527 covers all mainstream automobile agreements and has strong applicability. Most models on the market can be used. The collected information is displayed on the LED display. Here, the HC-06 Bluetooth module is used as the transmission medium with the mobile device, and the communication distance is about 10m.

Hoko motuka OBD1.3 He waahanga o te mahere hoahoa mo te mehua i te tawhiti taraiwa

E whakaatuhia ana i te Whakaahua 4, ko tenei waahanga ka whakawhiwhia ki nga korero tuuturu GPS mo te waka na roto i te waahanga whakanoho GPS [14], ka whiwhi i etahi atu korero ma te awhina o te waehere whakawhiti korero whakawhitiwhiti waka a DSRC.

Ka tatau nga korero tuuturu waka, ka whakaatuhia te tawhiti i waenga o nga waka e rua i runga i te whakaaturanga LED, i te taputapu pukoro ranei. Mena he iti ake te tawhiti i te tawhiti kua whakaritea, ko te tangi me te rama whakaoho te tohu o te taraiwa. Ko te kaiwhakahaere matua ARM i te punaha e whakamahi ana i te maramara STM32F105RBT6, ko te waahanga whakawhiti korero whakawhiti waka a te DSRC e whakamahi ana i te waahanga MK5OBU-DSRC, ko te waahanga whakanoho GPS e whakamahi ana i te waahanga MK5OBU-GPS, ko te whakaaturanga LED e whakamahi ana i te whakaaturanga waka 14 inihi, me te tangi whakamahi te kōwae whakaoho marama i te purei oro.

1.4 Hoahoa waahanga waahanga raupaparorohiko

Ko tenei waahanga ka whakawhanake i te taputapu waea AP [15] mo te papa Android, e aro nui ana ki te wehenga o nga mahi a te kōwae, e hanga ana i te angamahi rorohiko maama

Ko te waahanga hoahoa raupaparorohiko kua tohatohahia kia 5 nga waahanga: te waahanga whakaatu papatohu mo te tere tere o te motuka, te raarangi whakaatu raarangi mo nga korero waka katoa, te waahanga ratonga mahere, me te waahanga Nihokikorangi hei tango korero me te waahanga reti mo te whakaatu i nga korero tuuturu. I muri i te whakauru i ia waahanga o te hoahoa waahanga, kua hangaia te punaha taatai ​​waka whakamutunga

2 System test

2.1 Te taiao whakamatautau

Ko te waahi whakamatau o te punaha e whakaatuhia ana i te Ripanga 1, kaatahi ko nga mahi whakarite i mua i te whakamatau i nga waahanga e tika ana: whakauruhia te tauranga-a-poari ki runga i nga waka e rua ana.

Hono atu ki te atanga OBD-Ⅱ, tirohia te mana o ia waahanga, ka whakawhiti i nga korero o te waea atamai ki te taunga waka ma te Bluetooth i runga i te huarahi tika mo te 1km te roa, ana ka tiimata nga waka e rua ki te tirotiro i nga tikanga mahi o ia waahanga o te punaha i te wa e taraiwa ana. Whakamahia nga whakamatautau hei tohu i te pumau, te taea me te tika o te punaha.

2.2 Nga hua whakamatautau

Ma tenei punaha e whiriwhiri he waka pono hei whakamatautau i te punaha. E ai ki nga hua o te whakamatautau ka taea e te taunga waka-eke te whakauru i nga momo waahanga kia pai ai te mohio ki nga mahi hoahoa e tika ana.

1) Mo nga kohinga kohinga, ka taea e nga waka e rua te tiro tika ki nga korero tuuturu o te taraiwa waka i runga i te whakaaturanga LED me nga taputapu waea, he ngawari, he ngawari hoki e whakaaturia ana i te ahua.

7 kua whakaatuhia.

2) Mo te ine i te tawhiti o te taraiwa, kia tika ai te mohio ki te tawhiti i inea, ka tiimata ana te waka ka mutu, ka whangangahia te tawhiti i waenga i nga waka e rua me te tokotoko mita.

Kia whakataurite ai ki nga raraunga kua whangangahia e GPS. Ka tohatohahia kia rua nga roopu whakamatau: 1) Ko te waka kei mua e tu ana, ana ko te waka kei muri ka timata ki te whakatata atu ki mua o te waka i roto i te 100m ka mutu ka tae ana ki tetahi tawhiti. 2) Ko nga waka e rua ka tiimata i te wa kotahi ka kati i muri i te taraiwa mo tetahi wa roa.

I nga wa e rua o nga whakamatautau whakamatautau, i whakamahia e te punaha te kohinga GPS ki te tuhi wehe i te hononga i waenga i te tawhiti i waenga o nga waka e rua me te waa. I muri i nga inenga maha me nga uara toharite, i kitea ko te he i waenga o te GPS tae atu ana ki te tawhiti tonu kei roto i te 0.5 m. Ka iti ake te tawhiti o te waka i te 2m, ka nui ake te he. E whakaatu ana ka taea e tenei punaha te tiki i nga korero tawhiti i waenga i nga waka tika me te tere ma te whakamahi i te punaha whakanoho GPS, a ka taea te taunekeneke me nga korero tuunga i waenga i nga waka e rua i te waa tonu na DSRC, hei whakamaumahara i te tuunga o nga waka. .

T7

3 Whakamutunga

Roadragon has designed an on-vehicle terminal system for the Internet of Vehicles based on OBD and GPS. The terminal system mainly includes two parts. The first part is the vehicle real-time data acquisition module, and the second part is the calculation and warning of the safety distance between vehicles through DSRC and GPS. Features. The actual vehicle test results show that the various modules of the vehicle terminal system work normally, are reliable and practical, and can be used by most models on the market. While ensuring safe driving, the driver can also obtain real-time driving information of the vehicle and part of the information of the vehicle that is also equipped with the device, so that the owner can have a more comprehensive understanding of the car’s situation and travel more comfortably. Because the system is connected to the Internet of Vehicles platform, when the number of vehicles is large, it has high application value in vehicle driving behavior analysis, fleet management, and environmentally friendly driving based on vehicle big data.

G-M200-2

 


Te wa tuku: Sep-18-2020