CN2758711Y - Apparatus for testing and controlling automobile information - Google Patents

Abstract

The utility model relates to an apparatus for testing and controlling automobile information, which is installed on a motor vehicle and is particularly used for carrying out information acquisition and realizing intellectualized control to the driving states of the motor vehicle. The utility model belongs to the automatic control device which carries out monitoring to rule-breaking phenomena of over-speed running, driving of fatigue, overload running, etc. of the motor vehicle. The utility model is mainly formed by the electrically communicating combination of a microprocessor, a control circuit, a signal amplification circuit, a pressure sensor, a vehicle speed detection sensor, an IC card seat, a speech alarm, an LCD display and a power supply circuit through an electricity principle, wherein a pressure strain gage of the pressure sensor and a pressure strain column are connected to form a whole by adopting rigid sintering; the pressure strain gage and the pressure strain column are installed between a shock absorption steel plate and a vehicle axle below a crossbeam center of a chassis of the motor vehicle after being fixed and made by upper and lower strain fixed plates, and are electrically communicated with a host machine in a driving cab of the motor vehicle through shielded wires. The utility model has the advantages of reliable principle, low manufacture cost, convenient use and installation and high automation, and the utility model provides an ideal apparatus for monitoring the motor vehicles in a traffic transport and managing department.

Description

The automobile information test control device

Technical field:

The utility model relates to a kind of being installed on to carry out information acquisition and according to the information of gathering the motor vehicle driving state is realized the intelligent automobile information test control device of controlling, particularly a kind of automatic processing device that overspeed driving car, fatigue driving, overload operation etc. are monitored on the motor vehicle.

Technical background:

China's rapid economy development make the owning amount of motor vehicle increasing, and the travelling speed of motor vehicle is also more and more faster, and particularly the quantity of automobile is prominent especially flies to increase.It is reported that the whole nation has 5-8 ten thousand people to die from traffic hazard the every year, and wherein the highway fatal accident that causes of getting on the car accounts for more than 80%, also big surprising of the economic loss that its traffic hazard causes.Therefore, avoid traffic accident and take place and minimizing personal injury and economic loss, become the first-class important business of vehicle supervision department.Cause the reason of traffic hazard to mainly contain road shape reason, vehicle mass reason and artificial origin according to one's analysis, and artificial origin's accident accounts for more than 75% of whole traffic hazard, the violation phenomenons such as transportation and the artificial origin mainly shows as fatigue driving, drives over the speed limit and overloads.So, prevent and solve vehicle driving against traffic regulations and travel and cause related industry, the attention of especially technical management industry.Relevant departments have taked a lot of management methods and administration means to solve the problem of driving against traffic regulations, even the manufacturer of automobile has also begun to consider solving aspect the technical feature of automobile and overcoming.In order to solve the problem of above-mentioned existence, the utility model is sought to design a kind of information of utilizing electronic computer technology that automobile is driven the fortune situation and is gathered and handle, and according to the technical parameter requirement that is provided with in advance, give a warning or carry out action according to information state, remind human pilot to overcome the violation phenomenon of existence with the means of warning or screen display, drive the driving safety of fortune to guarantee automobile.

Summary of the invention:

Goal of the invention of the present utility model is to overcome the existing technology and information collection shortcoming not in place with processing that prevents and write down that the motor traffic accidents aspect exists, a kind of automobile information test control device is provided, this device utilizes robot calculator information acquisition and treatment technology that automobile is driven the fortune situation to carry out record, and information handled, require to send the execution actuating signal according to presetting again, adopt alarm or screen display means in time to remind human pilot to correct the unlawful practice of oneself, this device is installed on the motor vehicle can conduct monitoring at all levels and the orientation of Information Monitoring, can be effectively to hypervelocity, fatigue driving, overload, rushing violation phenomenons such as forbidden zone monitors.

The utility model adopts microcomputer that each road signal is detected and handles and carries out the audiovisual prompting by LCD and phonetic alarm, its device main frame is by microprocessor, control circuit, signal amplification circuit, pressure transducer, speed of a motor vehicle detecting sensor, the IC-card seat, phonetic alarm, LCD and power circuit combine through conventional electrical principles electric connection, pressure transducer belongs to the innovative design of this device, by the pressure-strain sheet, draw lead, the pressure-strain post, the installing and locating hole, upper stress fixed head and following stress fixed head combine, adopt the rigidity sintering to link into an integrated entity between pressure-strain sheet and the pressure-strain post, symmetry is installed in respectively, the two ends of following stress fixed head, its position distance depends on the wheel distance of detected vehicle, promptly Dui Cheng two pressure-strain post centers should be over against the Center of Pressure point of wheel, be transferred to microprocessor by drawing on the pressure-strain sheet after lead electrical connection signal amplification circuit is handled and carry out test processes, be shaped on the installing and locating hole at upper stress fixed head and following stress fixed head center, so that with pressure transducer over against the relevant position that is installed on automobile, pressure transducer is installed between the automobile shock steel plate and vehicle wheel shaft under the automobile chassis crossbeam center, corresponding automobile shock steel plate installing and locating hole, installing and locating hole on the pressure transducer, two holes are in the same center line, to guarantee the stressed even of pressure, correct testing vehicle load condition; The utility model adopts the IC-card communication modes to driver information, whole apparatus main body is made box structure according to the conventional technology of preparing in the electrical principles, and to be installed on car steering indoor, its front is a panel of LCD, the lower left of display pannel is shaped on the IC-card seat, the upper left side is a control knob, the right of display pannel is a LCDs, is equipped with the time showing district successively, adds up to work viewing area and date and time information viewing area; Apparatus main body through shielding wire respectively with pressure transducer and automobile power source electric connection, to guarantee the having signals security of normal power supply and pressure transducer to transmit.

The utility model adopts intelligent control, design has the measuring ability of hypervelocity, fatigue driving, overload of vehicle, and can prevent to drive without a license, device itself can and be stored in the system detected information record, for relevant department's control inspection, employed pressure transducer susceptibility height, precision is good, but system information shows clear and the sound caution, is a kind of desirable automobile monitoring device.

Description of drawings:

Fig. 1 is a system architecture schematic block diagram of the present utility model.

Fig. 2 is a pressure sensor structure synoptic diagram of the present utility model.

Fig. 3 is a pressure transducer of the present utility model installation position structural representation.

Fig. 4 is the utility model host display panel layout structural representation.

Specific embodiments:

Enforcement of the present utility model adopts conventional design to prepare the technology of supervising device, pressure transducer and installation position structure thereof are core technologies, the display pannel of device main frame is reflection the utility model monitoring performance and operation mainly design easily, and the main building block of its device comprises: microprocessor 1, signal amplification circuit 2, pressure transducer 3 or 18, control circuit 4, LCD 5 or 22, IC-card seat 6 or 25, speed of a motor vehicle detecting sensor 7, phonetic alarm 8, power circuit 9, pressure-strain sheet 10, draw lead 11, pressure-strain post 12, installing and locating hole 13, upper stress fixed head 14, following stress fixed head 15, automobile chassis crossbeam 17, automobile shock steel plate installing and locating hole 16, pressure transducer 18 or 3, automobile shock steel plate 19, vehicle wheel shaft 20, button 21, LCD 22 or 5, time showing district 23, accumulative total working time viewing area 24, IC-card seat 25 or 6 and date and time information data viewing area 26.

Pressure-strain sheet 10 on the pressure transducer 3 is selected the quick foil gauge of ML41 type power for use, its principle of work is: apply pressure at right angle at upper stress fixed head 14 and following stress fixed head 15 and make pressure-strain post 12 that elastic deformations take place, the pressure-strain sheet 10 that is fixed on the pressure-strain post 12 causes thereupon elastic deformation takes place that also the resistance of the resistive film on the pressure-strain sheet 10 changes, and this variable signal sends microprocessor 1 monitoring and processing through drawing to after lead 11 access signal amplification circuits 2 are handled.

The selected position that must correctly reflect the carload situation of the installation position of pressure transducer 3 on vehicle, be chosen in view of the above between the junction of vehicle wheel shaft 20 and automobile shock steel plate 19, on automobile shock steel plate 19 was fixed on vehicle wheel shaft 20, the output signal of pressure transducer 3 was by drawing the input end that lead is in electrical communication with the signal amplification circuit 2 in the indoor device main frame of car steering through the multicore of shielding by automobile shock steel plate installing and locating hole 16.

The function of main frame comprises the judgement of the content of the calculating of A/D conversion and control, carload, the calculating of the speed of a motor vehicle, the calculating of driving the time, driver information and structural planning, IC-card information and demonstration, audio alert etc., its principle is that custom microprocessor can satisfy and realize, microprocessor 1 of the present utility model is selected the PIC16F887A type for use, can realize design function.

The calculating of A/D conversion and control and carload: after the output signal of pressure transducer 3 inserts signal amplification circuit 2 amplifications, the A/D converter that enters PIC16F887A type microprocessor 1 carries out the A/D conversion, conversion value obtains the pressure that pressure transducer bears by computation of table lookup, and the pressure sum of all pressure transducers is the load of vehicle.

The calculating of the speed of a motor vehicle and driving time timing continuously: speed of a motor vehicle detecting sensor 7 is selected the speed of a motor vehicle testing circuit on existing conventional part or the direct electric connection automobile for use, the count pulse of the speed of a motor vehicle is taken from the mileometer or the mileometer driving chain of vehicle, according to whenever the circle distance of vehicle ' of the mileometer driving chain of concrete vehicle, can calculate the running velocity of vehicle with the ratio of interval time of two subpulses, when pulse occurring in the time interval of setting, not think that it is 0 that vehicle has stopped the speed of a motor vehicle.When the speed of a motor vehicle drives that time counter picks up counting greater than zero the time and continuous zero clearing counter down time continuously, down time, counter picked up counting when speed of a motor vehicle vanishing, down time greater than remove after 30 minutes drive continuously time counter and down time counter and stop going up counting.

The information content of driver's information IC-card and the planning of structure: the read-write of IC-card adopts routine techniques and equipment to get final product.The IC-card model that adopts in the present technique is the SLE4442 intellective IC card, and this IC-card has three memory blocks, and the main storage area is the EEPROM of 256 * 8BIT, the write-lock memory of 32 bytes, the protected location of 4 bytes (invisible password area).The one-time write when write-lock memory of 32 bytes can only or dispatch from the factory at hair fastener just becomes read-only region later on, and this memory block is planned to the driver identity block of information, comprises ID (identity number) card No., and data of issue is driven contents such as level alias.The protected location of 4 bytes (invisible password area); this district writes the check code of three bytes when hair fastener; only after reference check code verification correctly to inside; could write data to IC-card; if unsuccessful this card of continuous three verifications is scrapped; this section planning is the cryptographic check district, then is considered as dead card if a verification is unsuccessful, have only cryptographic check by after just can carry out next step authentication.The EEPROM main storage area of 256 * 8BIT, this district be for read-write district, but only the verification password by after can write data, this section planning is violation information record district, violation information comprises information such as type of violation, time violating the regulations, number of times violating the regulations.IC-card deck model is KF-008A, and contact and Continuous Contact meet the ISO7816 standard.

The information of driver's information IC-card is judged: the PIC16F887A microprocessor passes through IC-card deck 25 to the IC-card reading writing information, when IC-card inserts deck or electric switch and has just opened, microprocessor 1 is the verification password at first, carry out authentication again after verification is correct, otherwise be considered as dead card, have only authentication to pass through under back and the non-overloading situation of vehicle, microprocessor 1 could be controlled and connect motor start circuit, and automobile can start to travel.Drive the time continuously when overtime when overspeed of vehicle or driver occurring, microprocessor 1 at first sends sound and light alarm by phonetic alarm 8, if sending after the warning at the appointed time in the section violation phenomenon fails to prevent, microprocessor 1 writes IC-card with kind violating the regulations and the time on date of breaking rules and regulations, if this moment, IC-card was extracted artificially, microprocessor 1 can deposit violation information in working storage, that does not stop sends sound and light alarm, unless IC-card inserted again could eliminate warning, microprocessor 1 writes IC-card with violation information again, and the violation information in the IC-card has only administrative service division to eliminate.

Claims (2)

1, a kind of automobile information test control device, combine through conventional electrical principles electric connection by microprocessor, control circuit, signal amplification circuit, pressure transducer, speed of a motor vehicle detecting sensor, IC-card seat, phonetic alarm, LCD and power circuit, it is characterized in that pressure transducer is installed between the automobile shock steel plate and vehicle wheel shaft under the automobile chassis crossbeam center, corresponding automobile shock steel plate installing and locating hole, installing and locating hole on the pressure transducer, two holes are in the same center line; Apparatus main body is made box structure, and to be installed on car steering indoor, and its front is a display pannel; Apparatus main body through shielding wire respectively with pressure transducer and automobile power source electric connection.

2, automobile information test control device according to claim 1, it is characterized in that adopting between the pressure-strain sheet of pressure transducer and the pressure-strain post rigidity sintering to link into an integrated entity, symmetry is installed in upper and lower stress fixed head two ends respectively, is shaped on the installing and locating hole in the center of upper and lower stress fixed head.

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