DE2146111B2 - Method and device for registering operating status information of a vehicle on a multi-track magnetic tape - Google Patents

Description

3 4

Time pulses is provided. The positive impulses from signal transmitters, which act as a marker for the

The transmitted operating status values are used for controls carried out in the traffic police. on

pulse with one of the respective operating state value described with equidistant time pulses

implemented corresponding frequency and thus appears as a continuous track 23 of the magnetic tape in addition

nuierhche pulse sequence of a first piece of information in 5 a shortened sequence of positive pulses 24. One at

recorded on the track in question. Button 14 confirmed by changing the driver shift closes this

tion of the direction of magnetization or the frequency switch-on gate 13 and caused at the same time by the

is another piece of information in the corresponding pulse shaper 11 a polarity change of the shortened

Track registerable. _{ten fo} | _ge positive impulses. Thus appears on the

On the time track, both continuous and io time track 23 are now also a shortened sequence

Equi-constant time impulses also temporarily for negative impulses 25.

Special markings for certain additional inputs to the input of a controllable pulse shaper

pulse in a shortened sequence and defined magnetization 15, the output of which with the controllable pulse

rungsnchtung applied. former 11 is interconnected, get relatively

To carry out the method, a Ge 15 low-frequency time pulses, z. B. Minute impulses, advises developed in which to record the load when the driver changes by means of a manual switch 16 Drive state information with a four-lane change polarity. Both frequencies arise Write unit equipped magnetic tape memory by dividing a generated by a clock 17 provided is. Each lane of the four lanes has a constant frequency by means of an electronic one Writing unit assigned to pulse shaper, soft at 8:18 p.m. or a frequency divider 19. A drive Application of signals from contactors Im-20 for the constant speed transport of the A pulse of a first polarity and when magnetic tape is applied is generated simultaneously by the clock Synchronized with signals from limit value contactors Impulse 17. A test unit 21 is inverted with it Generate polarity. Equipped for additional trolling circuits and used for over-recording a pulse train of higher frequency in 25 monitoring the function of all rotating elements of the the time recording track is by closing drive 20 in magnetic tape storage 29. With a A frequency divider (not shown) is used to switch a Fre function unit 22 downstream of a clock generator switchable. tape cassette when inserting it into the magnetic tape

The invention is to be automatically identified by means of an execution memory 29 (identification

example and the associated drawings in more detail 30 tion of the memory and start of the start). As a data carrier

explained. For this information, there is a label attached to the cassette.

F i g. 1 the functional diagram of a replaceable paper strip fixed as a tachograph to be used.

About usable device for recording and registers, which when inserting the cassette into the magnetic

stration of information to be evaluated by machine, tape memory 29 with defined markings

F i g. 2 the track and signal distribution on the 35 will be seen.

Disk. Mark further positive and negative impulses

In Fig. 1 shows the procedural sequence of the constant acquisition and registration of information on the sections of the path covered on the track 26 of the magnetic tape. The determination of a data carrier in the form of a magnetic tape cassette of the Gesanuweg is done by machine counting. Contact sensors 1, 2 give examples of the individual pulses during the evaluation. As a speed contactor, the continuous time interval between the adjacent pulses is used to generate square-wave pulses with speed or rotational speed to determine the speed of the vehicle, frequency proportional to the number. The polarity change of the pulses on the track 26 transmitter 3 is used in the same way to detect a deviation of the loaded item. The continuous pulse trains of the condensing magnetic tape are used in the same way for Regitaktgeber 1, 2, 3 are controllable pulse shaper stration of the temporal engine speed curve. The 4, 5, 6 forwarded. For detecting and registering polarity changes on this track 27, excess of critical operating and driving conditions indicates exceeding of the maximum permissible engine status, 7. B. the engine temperature, limit temperature is used. On track 28 is the continuous value contactor 7, 8, 9. These are provided when the fuel consumption is recorded, deviating from the specified values and, if necessary, another limit value is exceeded and the polarity is reversed with the help of the polarity change Kenncontinuous pulse train. With the outputs that are drawn.

controllable pulse shapers 4, 5, 6 are immediately 55 The direct, uncoded infoimation storage three writing head systems of a four-track writing unit ensures this method with relatively little 10 of a magnetic tape storage device 29 connected. A technical-mechanical effort for the magnet fourth The write head system is used for permanent tape storage with a high degree of functional reliability drawing of equidistant time pulses and time. This also automatically sets the procedural, additional impulses shortened sequence with 60 related information losses and those caused by the Defined direction of magnetization for intended, previously common, partially manual Special markings 24 and 25, on a track 23 data entry resulting error rates on one of the magnetic tape, according to FIG. 2. Go down to the Minimum entrance.

a pulse shaper υ 1 reach via key 12 or. Another advantage of the inventive solution

a switch-on gate 13 pulse trains of a constant 65 solution is that a combination with already

Frequency that is close to the upper limit frequency of an existing device, e.g. B. a conventional

Magnetic tape storage 29 lie. This creates, for example, a 7-day tachograph, so that both

wise during the closing of the button 12 a sequence a display and recording with immediate

visual evaluability as well as the later machine evaluability of the other data carrier given is what allows the user to make optimal use of it.

To monitor the function of the device, a test unit with a control circuit is provided that the Rotation elements of the drive of the magnetic tape storage are monitored.

1 sheet of drawings

Claims (3)

1 2 considerable technical effort is required, claims: why an exact and complete machine data 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 a 5 Multi-track magnetic tape, with one track for recording. A process and a Gera! to the drawing of time pulses is provided, since detection and recording of operating variables, characterized in that the operating state values transmitted by special in vehicles according to the code pulse signal transmitter method are proposed. The frequency corresponding to the state value is converted into pulses according to the dual code in pulses with an operating variable encoded in several digits for the respective operating ic. B. information in the relevant track (26, 27, 28) a paper tape, registered and will be recorded on a, and that by changing the corresponding device, for. 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 lane (23) both partial processing of the registered data. Continuous, equidistant time pulses as well as 20 result in a ratio that is economically and temporarily unfavorable for the user for special markings (24, 25) between the acquisition of additional pulses in a shortened sequence and defi- and operating costs for the nated magnetization direction in the vehicle and the stationary evaluation part of the system,
the. It has also already been proposed that a data 3. Device for carrying out the method 25 carrier with a magnetizable layer at the Reginach Claim 1 and 2, characterized in that the steering process is proportional to the vehicle speed to run for recording the operating status information and more constant with pulses mations to write a repetition frequency with a four-track writing unit. The downside to 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 shaper (4, 5, 6, 11, 15) are assigned, in particular for accident investigations when exposed to signals from gen, can be used. Contact generators (1, 2, 3) pulses of a first known are still magnetic recording Polarity and when applied with signals voltage systems with the function of disturbance screaming Limit value contactors (7, 8, 9) pulses 35. Only those with 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 technical generator to be monitored (17) downstream frequency divider (19) organizational information the transport device additional recording of a pulse train speed of the magnetic data carrier strong (24, 25) increase the higher frequency in the time recorder, whereas they increase in the interference-free time voltage track (23) can be switched on. at a lower, data carrier-saving speed ability to work. Such recording systems record the disturbances / deviations in coded, ———— timely recognizable form, they suit 45 is only suitable for use in or on very complex objects. A standard equipment The invention relates to a method and a device for utility vehicles with this device is economically absolutely not justifiable for registering operating status information,
of a vehicle on a multi-track 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 under caution is. Consideration of a rational and low-loss To record and register such driving machine recovery and evaluation of the and vehicle information is information stored in the tachograph that is discovered in the vehicle, 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 of driving up and a device for registering the essentials from analog diagram recordings that borrowed technical and organizational information previously only recovered by machine by means of optical reading devices when operating vehicles on a multi-track with process-related losses. There is a machine can be. Evaluability and the highest possible functional reliability This method has several disadvantages. For that matter through the use of preferably electronic simultaneous To ensure registration of the various structural units and elements seen, collected information of the vehicle status are more- According to the invention, the task was rere complex mechanical writing systems solves that a method of registering conveyable. Due to the relatively low storage density, information on the vehicle's operating status is available of the data carrier is the area of application in which a multi-track magnetic tape was developed. Furthermore, a track for recording of