CN2494998Y - Intelligent recording instrument for vehicle driving - Google Patents

Abstract

The utility model relates to an intelligent recording instrument for vehicle driving, which belongs to the technical field of the equipment for monitoring and managing vehicle driving. The utility model comprises a single chip computer, a real time clock circuit connected to the single chip computer, a memory, a display and a vehicle speed sensor. The utility model is characterized in that the single chip computer is also connected with a printing drive circuit and a pin type array printer connected with the printing drive circuit, and the pin type array printer records the vehicle time and speed curve at every moment in the mode of cartesian coordinates. The printing drive circuit is composed of five pairs of composite triodes and regular peripheral components. The utility model can carry out 24-hour true and dynamic monitoring for vehicles, and records the vehicle time and speed curve in the mode of cartesian coordinates on a strip chart with extreme convenience for filing and managing.

Description

Intelligent recording instrument for vehicle driving

Technical field:

The utility model relates to a kind of monitoring-testing device of the vehicles.What be particularly related to is a kind of Tachographs of logging machine motor-car operation conditions.

Background technology:

For strengthening monitoring management to motor vehicle, minimizing accident and the generation of incident in violation of rules and regulations violating the regulations, on motor vehicle, set a driving registering instrument note situations such as in the process of moving speed of motor vehicle, load-carrying with for future reference be one of mode of generally adopting both at home and abroad at present.External what use at present is a kind of mechanical disk-type paper registering instrument, adopts the polar coordinates recording mode, utilizes the centrifugal force of automobile kilometer flexible axle to drive pointer and moves on disk paper and write down out speed of a motor vehicle curve.The shortcoming one of this mechanical disk-type paper registering instrument is that precision is too poor; The 2nd, corresponding the packing into of time mark on the real time that car must be begun to travel and the disc type recording chart, use cumbersome; The 3rd, only can note the time and the speed conditions of driving, remaining all need be filled in separately as Pilot Name, license number, date, the milimeter number that travels etc., forgets or mistake easily.In addition, this disk record paper, inconvenient filing management and consulting.The domestic in recent years registering instrument that some record running state of automotive vehicle also occur, as CN2185912Y disclosed " motor vehicle running status registering instrument ", its formation comprises main frame and vehicle speed sensor, main frame is by single-chip microcomputer, data-carrier store, clock/calendar circuit, speed of a motor vehicle testing circuit, and driving states testing circuit, warning circuit, display circuit constitute.Utilize speed of a motor vehicle control circuit and driving states testing circuit to obtain the running state data of this car and it is stored in the data storage to preserve.When driving over the speed limit,, remind the driver to slow down by the warning of sounding of audible alarm circuit.The shortcoming of this registering instrument is intactly to print vehicle actual moving process 24 hours true velocity curve map and relevant information, unfavorable complete collection management immediately.

The utility model content:

The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, provides a kind of and adopts that stripe shape recording chart rectangular coordinate recording mode, degree of accuracy height, objectivity are strong, the intelligent recording instrument for vehicle driving of the easy row of user.

The intelligent recording instrument for vehicle driving of realizing the utility model purpose comprises a single-chip microcomputer, be connected to the real time clock circuit of single-chip microcomputer, storer, display and vehicle speed sensor, feature of the present utility model is that described single-chip microcomputer also is connected to a printing driving circuit and is connected in this print drive circuit writes down each moment automobile time rate curve in the rectangular coordinate mode wire-dot printer, described print drive circuit by five pairs of compound transistors (Q17) (Q18), (Q19) (Q20), (Q21) (Q22), (Q23) (Q24) with (Q25) (Q26) and conventional peripheral component are formed, the base stage of five pairs of complex pipes is connected to one-chip computer by optical coupler respectively, and the collector of five pairs of complex pipes is connected respectively to the have an injection coil and the motor of wire-dot printer.

The principle of work of this automobile travel recorder is as follows: real time clock circuit triggers the have an injection coil and the motor of print drive circuit, driving printer after single-chip microcomputer is handled, print the real-time clock coordinate in the horizontal ordinate mode.Speed sensor signal is handled through single-chip microcomputer, generates the digital signal of corresponding speed, and one the tunnel enters storer preserves and show in display, one the tunnel is transferred to print circuit, according to the size of velocity amplitude, select the different coil of having an injection of control, on recording chart, get a point.Can set the time interval of every dozen of points as required,, connect then formation time rate curve of point as point of per minute.During parking of automobile, memory stores down time, real time clock circuit is kept operation all the year round by battery.Automobile starts once more, and single-chip microcomputer is down time and real-time time relatively, and drives the printer complement and print off the parking time coordinate of section during this period of time, to guarantee the complete of whole day 24 hour records.

Still can set up overload sensor and single-chip microcomputer joins.For lorry, the overload sensor is installed in back axle, when contained goods weight is overweight, the overload sensor sends signal to single-chip microcomputer, after single-chip microcomputer was handled, corresponding curve overstrike or print special mark on recording chart can intuitively be found out the time period and the vehicle operating interval of overload.Also can under the situation of overload, hypervelocity, report to the police simultaneously by a phonetic alarm.Then adopt counter to be installed on the car door to passenger vehicle, prevent overload by the control number of getting on the bus.

Still can set up IC-card read-write interface and GPS/GSM interface, to expand the function of this automobile travel recorder.

Described print drive circuit also can be established a single-chip microcomputer in addition and be connected with serial communication interface with last single-chip microcomputer, and speed sensor signal is a single-chip microcomputer after serial communication interface is delivered to, and controls the coil of having an injection by back one single-chip microcomputer and prints rate curve.

Set a logbook for glue records paper also can for this automobile travel recorder, so that the recording chart of every day is collected the management of binding into book form.

The advantage that the utility model is compared with existing automobile travel recorder is to adopt stripe shape recording chart rectangular coordinate recording mode, the vehicle actual moving process is carried out 24 hours true dynamic monitorings, show and max. speed, the accumulative total of the record whole day relevant informations such as the travel speed curve of kilometer, accumulative total running time, whole day and license number of travelling.Every day, recording chart can be attached in the logbook easily, and annual one of per car is convenient to filing and is consulted use later on.Select mass storage for use, can preserve the data more than 10 years.Expanded function is strong, can join IC-card read-write interface, black box connecting interface and GPS/GMS interface as required.Be applicable to that various vehicles use.

Provide embodiment below in conjunction with accompanying drawing.

Description of drawings:

Fig. 1 is a structural representation of the present utility model

Fig. 2 is a theory diagram of the present utility model

Fig. 3 is the main circuit diagram of present embodiment

Fig. 4 is printer driver circuit figure

Fig. 5 is the wire-dot printer circuit diagram

Fig. 6 is a strip chart synoptic diagram of the present utility model

Fig. 7 is the interior record page synoptic diagram of logbook of collecting strip chart

Embodiment:

Referring to Fig. 1～3, this intelligent recording instrument for vehicle driving comprises a single-chip microcomputer IC12, be connected to real time clock circuit, storer, display, the vehicle speed sensor of single-chip microcomputer respectively, the print drive circuit and be connected in this print drive circuit write down each printer 4 of automobile time rate curve constantly in the rectangular coordinate mode.Each circuit is installed in the housing 7 with printer 4 with a circuit main board 3.2 is display among Fig. 1, and 5 is recording chart, 1,12,13 when being respectively switch key, school key, three function keys of paper feed key, corresponding to the DC among Fig. 3, ET and three buttons of ID.The function of switch key is to switch display interface, as the time surface that shows current year, month, day, hour, min being switched to the interface that shows present speed limit value and every kilometer rotating speed.12 keys when being the school can be adjusted to integral point automatically with the time.13 is paper feed key, can enter query State by this key, shows query contents; Key cooperates and changes query time, can inquire about the same day and with arbitrary day functions such as max. speed, day accumulative total stroke and accumulative total running time in several years ago during with switch key, school.6 IC-card read-write interfaces for expansion.Single-chip microcomputer IC12 is a MCS51 series one-chip computer, and referring to Fig. 3, vehicle speed sensor is joined through 15 pin of photoelectric coupling circuit and IC12; The SCL of data-carrier store IC4 and SDA end joins with 1 pin and 2 pin of IC12 respectively, and the SCL pin of real time clock circuit IC10 and SDA pin join with 3 pin and 7 pin of IC12 respectively, and 32 pin of IC12 are the PO mouth, are connected to display circuit to 39 pin; Button DC, ET and ID are three function buttons on the machine shell panel, are connected respectively to 26,27 and 28 pin of IC12; Button FC is provided with key in the machine, is connected to 25 pin of IC12.4 pin that also are provided with an overload sensor and IC12 in the present embodiment link.Fig. 3 has provided the connecting circuit figure of above-mentioned each components and parts, belongs to known technology, no longer describes.Certainly, the usage of each input and output pin of single-chip microcomputer also can arbitrarily define according to software programming.

Fig. 4 has provided the print drive circuit, by an one-chip computer IC52 and five pairs of complex pipes (Q25) (Q26), (Q23) (Q24), (Q21) (Q22), (Q19) (Q20), (Q17) (Q18) and conventional peripheral cell constitute, 16 pin of one-chip computer (IC52), 12 pin, 13 pin, 14 pin and 15 pin are connected to the base stage of five pairs of complex pipes respectively by optic coupling element.The collector of five pairs of complex pipes is connected respectively to 3 pin, 7 pin, 6 pin, 5 pin and 4 pin of printer, and timesharing drives the coil of having an injection of printer.11 pin of IC52 connect 1 pin of printer, to detect the horizontal reset signal of printer.Fig. 5 has provided the wire-dot printer circuit diagram of present embodiment.IC52 serves as serial communication interface by 5 line plug CH4 and connects with IC12 serial communication among Fig. 2, and its 1 pin is the VCC power supply, and 2 pin of CH4 are connected to 3 pin of IC52, and 3 pin of CH4 are connected to 2 pin of IC52.10 pin of printer are the printer synchronizing signal, are connected to the base stage of triode Q27, after Q27 amplifies, output to 17 pin of IC52 by collector, drive the motor of printer.16 pin of IC52,12 pin, 13 pin, 14 pin and 15 pin are received the base stage of five pairs of compound transistors respectively respectively by optocoupler IC21, IC23, IC12 and IC20 transmission.Also can directly control the coil of having an injection by optocoupler, compound transistor by IC12, can finish equally with the horizontal ordinate is that real-time time, ordinate are the printing of speed of a motor vehicle time rate curve.

Writing time, rate curve and process were achieved in that

Real-time clock IC10 is transferred to single-chip microcomputer IC52 through serial communication after single-chip microcomputer IC12 handles, drive the have an injection coil and the motor of printer, prints 0-23 hour clock coordinates 9, is the horizontal ordinate on the recording chart 5 shown in Fig. 6.Speed sensor signal is handled through single-chip microcomputer IC12, generates the digital signal of corresponding speed, is transferred to single-chip microcomputer IC52, and IC52 selects the different coil of having an injection of control printer according to the size of velocity amplitude, gets a point on recording chart.Connect then formation time rate curve 10 of point, referring to Fig. 6,12 is the gauge outfit part among Fig. 6, and printed contents comprises license number, day accumulative total running time, accumulative mileage, F-Zero etc.14 is speed coordinate, and 15 is the year, month, day print zone.Travel as automobile overload, the action of overload sensor, after single-chip microcomputer was handled, corresponding segment of curve overstrike came out on recording chart.During parking of automobile, memory IC 14 is stored down time, and battery E keeps real-time clock IC10 and moves all the year round.Automobile starts once more, and single-chip microcomputer IC12 is the real-time time of IC14 down time and IC10 relatively, and drives the printer complement time coordinate of section during this period of time that goes out to stop, to guarantee the integrality of annual 365 day every day 24 of hour record.

Be convenient management, the recording chart of every day can be collected in the frame of broken lines 17 of the record page 16 that sticks on as shown in Figure 7, and bind into book form the per year retaining case of travelling in year that then can constitute this car of record page is for future reference.

Claims (6)

1, intelligent recording instrument for vehicle driving, comprise a single-chip microcomputer, be connected to the real time clock circuit of single-chip microcomputer, storer, display and vehicle speed sensor, it is characterized in that described single-chip microcomputer also be connected to one print driving circuit and be connected in this print drive circuit write down each wire-dot printer of automobile time rate curve constantly in the rectangular coordinate mode, described print drive circuit by five pairs of compound transistors (Q17) (Q18), (Q19) (Q20), (Q21) (Q22), (Q23) (Q24) with (Q25) (Q26) and conventional peripheral component are formed, the base stage of five pairs of complex pipes is connected to one-chip computer by optical coupler respectively, and the collector of five pairs of complex pipes is connected respectively to the have an injection coil and the motor of wire-dot printer.

2, automobile travel recorder as claimed in claim 1 is characterized in that described single-chip microcomputer also is connected to an overload sensor.

3, automobile travel recorder as claimed in claim 1 is characterized in that described single-chip microcomputer also is equipped with the IC-card data read and write interface.

4, automobile travel recorder as claimed in claim 1 is characterized in that described single-chip microcomputer also is furnished with the GPS/GSM interface.

5, automobile travel recorder as claimed in claim 1 is characterized in that described print drive circuit also is provided with a single-chip microcomputer, and this single-chip microcomputer is connected with aforementioned single-chip microcomputer with a serial communication interface.

6,, it is characterized in that described registering instrument also is furnished with the logbook of glue records paper as claim 1 or 2 or 3 or 4 or 5 described automobile travel recorders.

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