Faʻatinoina o le taʻavale nofoaga faʻavae faʻavae i luga o OBD ma GPS

E pei ona silafia e tagata lautele le saogalemu o feoaʻiga, auala ma isi mataupu, ose faiga mo taavale e faʻavae ile OBD ma le GPS ua fuafuaina. O le faiga ua mamanuina mai lua itu, tasi le

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

Ona o le televave o le tuputupu aʻe o le umiaina o taʻavale, o se faʻasologa o feoaʻiga faʻafitauli na mafua mai i lenei mea ua tosina atili ma sili atu ona faʻalogo iai, pei o le saogalemu, puipuiga o le siosiomaga, ma le tele o auala.

Faatali Mai le vaaiga o le saogalemu o le taʻavale, e taua tele le faʻatumauina o le mamao i le va o taʻavale ma tiʻetiʻe ma le faʻaeteete. O le iloaina o le mamao i le va o taʻavale e mafai ona foʻia lelei ai na faʻafitauli. I le fuaina o le mamao i le va o taʻavale, o le ultrasonic mamao fuaina tekonolosi o se masani faʻaaogaina mamao fua metotia, ae o lona mamao fua siʻosiʻomaga tulaga e fai si maualuga ma le saʻo e le lava. Lidar o loʻo avea nei ma alualu i luma maoaʻe faʻaaogaina metotia. E tele na faʻaaogaina i faʻaiuga o suʻesuʻega faʻasaienisi suʻesuʻega ma suʻega e pei o taʻavale e leʻi faʻatonuina. E taugata. Lautele Lidar e tele lava faʻaaoga mo le fesuiaiga o le mamao fuataga i totonu ole 3m. O nei ituaiga e lua o le vaʻalele mamao e manaʻomia ai le maualuga o le siosiomaga faʻagaioiga ma le taugata tele, ma e le mafai ona faʻamalieina manaʻoga o le saogalemu mamao faʻamanatuina o sisitema mo taʻavale masani a tagata lautele.

I le taimi nei, o le taʻavale-faʻataʻavaleina GPS faʻataʻitaʻiga polokalama ua lautele faʻaaogaina ona o le lelei o le maualuga faʻatulagaina tulaga lelei, tau maualalo, ma faʻaaoga talafeagai. Fuaina le mamao i le va o taʻavale e ala ile GPS ua avea

Mo le mea moni. O le DSRC Initaneti o taʻavale fesoʻotaʻiga faʻatekonolosi na faʻaauau pea ona faʻaaogaina i le matata o femalagaaiga atamai i tausaga talu ai, ma e mafai ona faʻamautu lelei i le va o televavave taʻavale.

I le taimi lava e tasi, avetaʻavale e naunau foi e fia iloa nisi faʻamatalaga i le taimi o le aveina o le latou taʻavale auala, ina ia mafai ai ona iloa sili atu gaioiga pulega o le taʻavale. O le faʻalauiloaina ole OBD-II tekinolosi ua faʻafaigofie ai mo tagata ona mauaina nei faʻamaumauga. O le faʻaauau faifai pea o le Initaneti o Taavale tekonolosi tekonolosi maua ai se tulaga mo le tuʻufaʻatasia o eseese modules.

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 Faʻavae atoa polokalame faʻatulagaina

I le maeʻa ai o se auiliiliga o manaʻoga o le polokalama, o le aotelega o le polokalama ua fuafuaina, e pei ona faʻaalia i le Ata 1. Ua vaevaeina le faiga i ni vaega se tolu: polokalama ma mea faigaluega, o le muamua

Vaega o ia o le fuafuaina se aoina module mo le i-laupapa OBD faiga o se taʻavale, e auala mai ai le moni-taimi faʻamatalaga i le taimi o le avetaʻavale auala o le taʻavale ua aveʻesea; o le vaega lona lua o se module e faʻaaogaina ai faʻamaumauga GPS e ausia ai faʻamatalaga fesoʻotaʻiga e ala i le DSRC; o le lona tolu o vaega e faʻavae i luga o le aoina faʻamaumauga O faʻamatalaga ua vaʻaia fuafuaina, aofia ai LED ma masini feaveaʻi, ina ia mafai ai e tagata faʻaoga ona faia fetuʻunaʻiga talafeagai i le avetaʻavale tulaga o le taʻavale.

1. 1 Faʻatulagaina atoa fausaga

O lenei faiga e faʻavae i luga o le mamanu o luga o le laupapa OBD ma GPS luga-laupapa faʻai faiga. O le faiga e faʻapipiʻi ai taʻavale e maua ai faʻamaumauga tuʻuina taimi o taʻavale ma faʻamatalaga o tulaga o nisi o taʻavale, faʻapea foʻi ma faʻamatalaga o le GPS tulaga, ma tufatufa faʻamatalaga ma isi taʻavale e ala i fesoʻotaʻiga fesoʻotaʻiga a le taʻavale a le DSRC. module aa

Fuafua le mamao saogalemu i le va o taʻavale e lua faʻavae i luga o le saoasaoa o le taʻavale ma le saoasaoa o le saoasaoa o taʻavale. I le taimi lava e tasi, fuafua le mamao moni i le va o taʻavale e lua e ala i faʻamatalaga GPS, faʻaali atu le mauaina o faʻamatalaga mamao i luga o le LED screen, ma faʻamasino pe o le moni mamao o le Afai e laʻititi ifo nai lo le saogalemu mamao, o le a lapataia le avetaʻavale. O le Bluetooth fesoʻotaʻiga module o loʻo faʻaaogaina e avea ma faʻamatalaga faʻasalalau auala i le va o le taʻavale tigaina ma le feaveaʻi masini, ma le vaevaeina matagaluega ma aoga modules ua fuafuaina.

DF

1.2 Fuafuaina polokalame ole OBD faʻamatalaga mauaina vaega

O le OBD system na fanau mai lava e faʻatapulaʻaina le faʻamamaina o le taʻavale faʻaalu. Faatasi ai ma le atinaeina o tekinolosi, o le sili ona lautele faʻaaogaina taʻavale

The 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.

Faailoga o le OBD taʻavale1.3 Vaega o le ata faʻataʻitaʻi mo le fuaina o le mamao avetaʻavale

E pei ona faʻaalia i le Ata 4, o lenei vaega e maua ai faʻamatalaga tulaga GPS o le taʻavale e ala i le GPS tulaga faʻatulagaina module [14], ma mauaina isi faʻamatalaga ma le fesoasoani a le DSRC taʻavale fesoʻotaʻiga module module.

O le faʻatulagaina o taʻavale faʻamatalaga ua fuafuaina ma o le mamao i le va o le lua taʻavale o loʻo faʻaalia i luga o le LED faʻaaliga poʻo le feaveaʻi masini. A o le mamao e laʻititi nai lo le seti mamao mamao, o le leo ma le malamalama faʻamalama module o le a lapataia le avetaʻavale. O le ARM autu pule i le polokalama faʻaaogaina le STM32F105RBT6 malamala, o le DSRC taʻavale fesoʻotaʻiga fesoʻotaʻiga module faʻaaogaina le MK5OBU-DSRC vaega, o le GPS tulaga faʻatulagaina faʻaaoga le MK5OBU-GPS vaega, o le faʻaali faʻaali faʻaaogaina le afi 14 inisi faʻaaliga, ma le leo ma malamalama atuatuvale module faʻaaogaina leo toe tataina.

1.4 Polokalama vaega vaega

Lenei vaega atiaʻe le feaveaʻi masini AP [15] mo le Android tulaga, taulaʻi i le vaevaega o module galuega, fausia ai se manino polokalama faʻavae

O le polokalame tisaini polokalame e tele lava ina vaevaeina i 5 vaega: o le dashboard faʻaali module mo taʻavale saoasaoa faʻamatalaga, o le lisi faʻaali module mo le aotelega taʻavale faʻamatalaga, le faʻafanua tautua module, ma le Bluetooth module mo le mauaina o faʻamatalaga ma le sliding module mo faʻaali faʻavae faʻamatalaga. Ina ua maeʻa tuʻufaʻatasia vaega taʻitasi o le ata tisaini, ua maeʻa faʻatulagaina le faʻamalama mulimuli mo taʻavale

2 System test

2.1 Suʻega siosiomaga

O le suʻega siʻosiʻomaga o le faiga o loʻo faʻaalia i le Laulau 1, ma le galuega sauniuni ae le i faʻataʻitaʻia le tutusa module: faʻapipiʻi le laupapa i luga o le laupapa i luga o le lua taʻavale ma

Fesoʻotaʻi ma le OBD-Ⅱ interface, siaki le paoa sapalai o vaega taʻitasi, ma i le taimi e tasi lafoina faʻamatalaga o le telefoni poto i le taʻavale auala e ala i le Bluetooth i luga o se auala saʻo e tusa ma le 1km le umi, ma o taʻavale e lua o le a amata faʻasolosolo. e siaki ai le galue tuutuuga o module uma o le faiga i le taimi o ave taʻavale. Faia suʻega e faʻamaonia ai le mautu, mafai gafatia ma le saʻo o le polokalama.

2.2 Iʻuga o Suʻega

O lenei faiga e filifilia se taʻavale moni e faʻataʻitaʻi ai le tino. O iʻuga o suʻega ua faʻaalia ai o le taʻutaʻua o le taʻavale e mafai ona tuʻufaʻatasia uma tuʻufaʻatasiga ma malamalama lelei i galuega faʻatulagaina fuafuaina.

1) I tulaga o faʻamatalaga aoina, o taʻavale uma mafai mafai vaʻaia matamata i le moni-taimi faʻamatalaga o taʻavale tiʻetiʻe luga o le LED faʻaali ma feaveaʻi masini, e malamalama ma faigofie pei ona faʻaalia i le ata.

7 faʻaalia.

2) I le tulaga o le fuaina o le mamao o le ave taʻavale, ina ia mafai ai ona faʻamaonia le saʻo o le fuaina o le mamao, pe a amata le taʻavale ma tu, o le mamao i le va o taʻavale e lua e fuaina i le mita mita.

Ina ia faʻatusatusa ma faʻamaumauga fuaina GPS. E masani ona vaevaeina i ni vaega se lua o faʻataʻitaʻiga: 1) O le taʻavale i luma e le tu, ma o le taʻavale i tua e amata ona faʻalatalata atu i le taʻavale i luma i totonu o le 100m ma taofi pe a oʻo i se mamao mamao; 2) O taʻavale e lua e amata i le taimi e tasi ma taofi peʻa uma le taʻavale mo se vaitaimi.

I totonu o seti e lua o suʻega faʻataʻitaʻi, na faʻaaoga ai e le polokalama le GPS e amata ai le faʻamaumauga eseese o le va i le va o le lua taʻavale ma le taimi. Ina ua maeʻa tele fuataga ma averesi taua, na maua ai o le mea sese i le va o le GPS e amata ma le mamao moni sa i totonu o 0.5 m. A o le taʻavale mamao e laititi atu i le 2m, o le a faʻateleina le mea sese. O loʻo faʻaalia mai e mafai e lenei faiga ona maua mai le faʻamatalaga mamao i le va o taʻavale ma le vave e ala i le faʻaaogaina o le GPS tulaga faʻatulagaina, ma mafai ona faʻafesoʻotaʻi ma le tulaga o faʻamatalaga i le va o taʻavale e lua ile taimi tonu e ala ile DSRC, ina ia faʻamanatu ai le tulaga o taʻavale. .

T7

3 Faaiuga

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

 


Taimi Post: Sep-18-2020