DE2146111C3 - Method and device for registering operating status information of a vehicle on a multi-track magnetic tape - Google Patents

Description

3. Device for carrying out the method 25 carrier with a magnetizable layer at the Reginach Claim 1 and 2, characterized in that the stripping process is proportional to the vehicle speed that for recording the operating status information to run and with pulses more constant mations to write a repetition frequency with a four-track writing unit. The disadvantage of this- (10) equipped magnetic tape storage (29) method is that it is intended exclusively for registration is that each track (23, 26, 27, 28) 30 tion and machine evaluation of speed Pulse shapers (4, 5, 6, 11, 15) are assigned, speed curves, inbesonderc for accident investigations which can be used when exposed to signals from gen.

Contactors (1, 2, 3) impulses of a first known are still magnetic Aufzeidi

Polarity and when applied with signals voltage systems with the function of Störungsschrecivon Limit value contactors (7, 8, 9) pulses 35. Of these, only those are to be mentioned, which n> it generate reverse polarity, and that by means of special devices in the event of faults or Closing switches (12, 13) on a clock deviations from the tcchnivhgeber to be monitored (17) downstream frequency divider (19) organizational information that TransptTtgezur additional recording of a pulse train speed of the magical data carrier> u; rk (24, 25) increase the higher frequency in the time recording, whereas in the interference-free /,.it voltage track (23) can be switched on. at a lower, data carrier-saving speed

work such recording systems draw although the disturbances / deviations in coded,

timely recognizable form, they are suitable

45 is only suitable for use in or on very complex objects. A standard equipment

The invention relates to a method and a device of utility vehicles with this device is eco-friendly Registration of operating status: inds information nomically absolutely not justifiable of a vehicle on a multitrack magnetic tape. where- the purpose of the invention is to overcome the disadvantages of the above

in the case of a track for recording time pulses 50 to avoid and provided under Bc is. consideration of a rational and \ cihistarmen

For capturing and registering such driving machine recovery and evaluation of the and vehicle information are tachograph bc- information stored in the I - '. who make their diagrams mainly on circular technical effort as low as possible Hold sheets or ribbons of paper with a surface 55.

Draw the coating on a wax base. The invention is based on the object of a stored Information consists mainly of driving up and a device for registering the toilet from analog diagram recordings that borrowed technical and organizational information up to now, only by machine using optical readers when operating vehicles on a MeliiMmrunter Process-related losses recovered. 60 Developing magnetic tape can be. Evaluability and the highest possible functional reliability

This method has several disadvantages. For the most part through the use of preferably electronic equivalents To ensure registration of the different assemblies and elements, summarized information of the Fahw; eug> .tands are men- According to the invention, the task was gc-

Another complicated mechanical writing system solves that a method for registering required. Due to the relatively low storage density, vehicle status information is available of the data carrier is the area of application bc- a multi-track magnetic tape was developed wogrenzt. Furthermore, a track for recording of

Zeitinipuls is provided. The operating status values transmitted by signal transmitters are converted into pulses implemented with a frequency corresponding to the respective operating state value and as continuous Pulse train of a first piece of information recorded in the relevant track. By change the direction of magnetization or the frequency is more information in the corresponding Track can be registered.

Both continuous, equidistant time pulses and temporary for Special markings for certain additional impulses in a shortened sequence and in a defined direction of magnetization upset.

To carry out the process, a device was developed in which to record the operating status information a magnetic tape memory equipped with a four-track write unit is provided. Everyone is ... pure the four-track writing unit Assigned pulse shaper, which when applied with signals from contactors pulses of a first polarity and when exposed to signals from limit value contactors impulses generate reverse polarity. For additional recording of a pulse train with a higher frequency in the time recording track is a frequency divider downstream of a clock by closing switches switchable.

The invention is to be based on a Ausfülmingsbcbeispiels and the associated drawings are explained in more detail. It shows

1 shows the functional diagram of a tachograph usable device for! acquisition and registration information to be evaluated by machine,

F i g. 2 the track and signal distribution on the data carrier.

FIG. 1 shows the process of acquiring and registering information on a data carrier in the form of a magnetic tape cassette. In this case, contactors 1, 2, for example as speed contactors, continuously emit Rechlcckimpulsc with speed or speed proportional frequencies. A contactor 3 is used in the same way to record a further parameter (fuel consumption or the like). The continuous pulse trains of the contactors 1, 2, 3 are fed to controllable pulse shapers 4, 5, 6. For recording and registering exceedances of critical operating and driving conditions. /. B. the motor temperature, limit value contactors 7, 8, 9. These come into action when there are deviations from the specified values and cause the polarity of the continuous pulse train to be reversed. Directly connected to the outputs of the controllable pulse formers 4, 5, (t are three write head systems of a direct-track writing unit IO of a magnetic tape memory 29. A fourth writing system is used for the continuous recording of Soiiderkennzcichiiungen 24 and 25 on a track 23 of the magnetic tape, ingenious.? Fig. 2. At the input of a pulse shaper;! 1 via key 12 or a gate 13 pulse signals of a constant frequency, which are close to the upper limit of a magnetic tape storage 29. For example, a sequence of positive impulses is generated during the closing of the button 12, which serves as a marker for controls carried out by the traffic police Ride Shift change confirmed button 14 closes the gate 13 and at the same time causes the pulse shaper 11 to change the polarity of the shortened sequence of positive pulses. Thus appears on the

ίο time track 23 now also a shortened sequence negative impulse 25.

At the input of a controllable pulse shaper 15, the output of which with the controllable pulse shaper 11 is connected together, get relatively low-frequency time pulses, z. B. Minute impulses, which change polarity when the driver changes by means of a manual switch 16. Both frequencies arise by dividing a constant frequency generated by a clock 17 by means of an electronic Clock 18 or a frequency divider 19. A drive 20 for the constant speed transport of the Magnetic tape is synchronized by the clock 17 at the same time. A test unit 21 is provided with control circuits equipped and is used to monitor the function of all Rotationselementc des Drive 20 in magnetic tape storage 29. A functional unit 22 is a magnetic tape cassette (not shown) automatically identified when it is inserted into the magnetic tape store 29 (identification of the memory and start of the start). A data carrier attached to the cassette is required for this information. to use exchangeable paper strips when inserting the cassette into the magnetic tape storage 29 is provided with defined markings.

Further positive and negative pulses mark constant sections on the track 26 of the magnetic tape of the distance covered. The total route is determined by machine counting of the individual impulses in the evaluation. The time interval between the neighboring pulses is used to determine the speed of the vehicle. The polarity change of the pulses on track 26 indicates a deviation of the loaded quantity from the specified maximum value. The track 27 of the magnetic tape is used in the same way to register the motor speed over time. the A change in polarity on this track 27 indicates that the maximum permissible motor temperature has been exceeded. The continuous recording of the fuel consumption is provided on track 28, If necessary, a further limit value excess is identified with the help of the polarity change will.

The direct, uncoded information storage of this method ensures relatively little technical-mechanical effort for the magnetic tape storage a high degree of functional reliability. This also automatically sets the traversing

'' "> related loss of information and the In the past, data entry that was used in some cases manually, resulted in error rates Minimum.

Another advantage of the solution according to the invention is that a combination with. already existing devices, e.g. B. c'iiem conventional 7-day trip log Can be done so that both a display and record can be made with instantaneous

5 6

visual evaluability as well as the later machi- To monitor the function of the device is

nelle evaluability of the other data carrier gc test unit provided with control circuit, di

is what gives the user the best possible Rotationselcmcntc of the drive of the Magnctb

use permitted. Monitored memory.

1 sheet of drawings

Claims (2)

a considerable technical effort required, claims: why an exact and complete mechanical Dalen recovery with the current state of the 1. Procedure for registering operating technology difficult and hardly economically justifiable status information of a vehicle is on an S. Multi-track magnetic tape, with one track for recording. A method and a device for drawing of time impulses is provided so that the acquisition and registration of operating parameters, in particular characterized in that the special in vehicles, according to the code pulse Signal transmitters transmitted operating state values method proposed. The one after the dual code into pulses with a company variable encoded with multiple digits for the respective company state value corresponding frequency implemented here, partly continuously, partly discreetly, in hole and as a continuous pulse train of a first or pulse groups on the data carrier, e.g. B. Information in the relevant track (26, 27, 28) a paper tape, registered and are via a are recorded, and that by changing the corresponding device, z. B. a reader with the direction of magnetization or the frequency in 15 subsequent EDP system, evaluated. Each track (23, 26, 27, 28) has a further piece of information. The disadvantage here is the relatively large size of the tion can be registered. technical, especially mechanical effort 2. The method according to claim 1, characterized in that the detection carried out in the vehicle and indicates that in a track (23) both the partial processing of the registered data. Continuous, Equidistant time impulses as well as ao from result in an economical for the user temporarily for special markings (24, 25) unfavorable ratio between purchases * additional impulses in shortened order and defi- and operating costs for those in the vehicle applied in the direction of magnetization and the stationary evaluation part of the system, the. It has also already been proposed that a data