Device for bulkiness monitoring of transportation vehicles

FIELD: transportation.

SUBSTANCE: device contains origin of coordinates sensor, evaluator for bulkiness coordinate, memory unit and control unit. In addition, scanner and control unit for scanner are introduced into the device. By means of scanner and its control unit scanning is performed in horizontal plane located at height. This allows detection of transport overhead clearance violation at distance of 15-20 m before this transport would cross clearance gage plane. Fact of violation is registered by photoelectric detectors and via control unit turns on warning sound and light also located on clearance gage. Thus, driver is warned about impermissibility of further moving. Providing the locomotive driver of approaching train with warning about foreign object presence at rail crossing or possible damage of through bridge let minimise accident risk due to overhead clearance violation by transport.

EFFECT: on improvement of means for transport bulkiness monitoring.

2 dwg

 

The invention relates to railway automatics and telemechanics, namely, devices control the size of vehicles at the intersection with the railroad.

Instruction manual railway crossings of the Ministry of Railways of Russia provides for the application of dimensional gates before man-made structures (1)to control the upper envelope of the vehicles. Dimensional gates installed at a distance of Lthe GABA=10-15 m from both sides before man-made structures. The control envelope is carried out by means of guide plates, suspended by metal chains or cables to a metal line or metal farm. The gate is equipped with a road sign "altitude Limit" and is intended solely for the attention of the driver of the vehicle, which must be checked (visually) the actual size limits at the moment of crossing the plane of the dimensional gate. In practice, the drivers ' attention is concentrated on the control of the machine and as a consequence, there are many cases of accidents, resulting in the destruction of dimensional gates, damage to vehicles, and if the braking distance LTorm>Lthe GABA, the consequences are more significant - or the possible breakage of the contact wire or the shift of the superstructure put the wires. The likelihood of this happening is very high. The braking distance of the vehicle at the same speed, for example, 40 km/h can vary from 17 m to 80 m, depending on the coefficient of adhesion with the road, which decreases from 0.7 at dry pavement to 0.2 when the snowfall.

The closest in technical essence is a device (2) for the definition of oversize vehicles containing the sensor origin, connected to the timer and the speed gauge, the outputs of the timer and speedometer connected to the inputs of the block defining the coordinates of oversize, to the third input of the latter is connected the power generation characteristics of oversize output unit determining coordinates of oversize connected to the input of the memory unit and a control unit.

It is customary for the prototype. The disadvantage of this device is the low level of security, due to the fact that, as in other similar devices, for example, used on humps (3), the detection of obstacles is in the plane themselves dimensional gate, which as noted above does not guarantee traffic safety.

The technical result is to increase the reliability and safety at the intersection of roads with artificial obstacles.

The invention consists in improving the reliability of the traffic safety by creating a zone of pre-control for extra length L counterbehind the plane dimensions of the gate, as well as increasing the reliability of detection of vehicles with violations of the envelope.

For this part of the known device (2), containing the sensor origin, timer, speed gauge, block determine the coordinates of oversize, the power generation characteristics of oversize, a memory unit and a control unit, inputs of the control unit of the scanning, the scanning unit, the reference signal generator, the receiver of the reflected signal, the selective amplifier, a detection unit, a touch sensor, the final block of the control unit of the switching device, the block of detectors danger, block notices trains and mechanisms boom, and one of the outputs of the control block scan is connected to the input of the scanning unit, to another input of the specified block is connected the reference signal generator, the output of the receiver of the reflected signal is connected to a selective amplifier and to the output of the selective amplifier is connected to the detection unit, and one input unit determining coordinates of oversize, to the other inputs of which are connected the outputs of the control unit of the scanning and reference signal generator, the block defining the coordinates of oversize associated with the control block and the final block of the control inputs of the final block the CSO control connected to the outputs of the receivers, placed in the plane of the gate, and the output unit finally control is connected to the input of the control unit of the scanning to the input of the control unit is connected to the output of the touch sensor, the output control unit connected to the input of the power switching devices, the outputs of the latter is connected to the unit alarms of danger, notice the trains and to the mechanisms of the boom.

Figure 1 presents the layout of the elements of the monitoring device of oversize, figure 2 shows the block diagram of the device.

The inventive device includes typical dimensions of gate 1, at the top of which are placed in the guide plates 2, the vertical gate piers placed emitters 3 and 4 receivers. The scanning unit 5 is placed in the upper part dimensions of the gate and to the control inputs of the specified block is connected to the output unit 6 controls the scanning and generator 7 reference signal. Scan area 8 is selected so that it fell of the vehicle 9 at a distance of Lcounterto the plane of the dimensional gate, which ensures reliable braking of the vehicle before the vehicle gate. The output of the receiver 10 of the reflected signal is connected to the input of the selective amplifier 11, the output of which is connected to the input unit 12, the detection of the reflected signal, the output of the last connection is Chen to one of the inputs of the block 13 determine the coordinates of oversize to the other input of which is connected to the output unit 6 controls the scanning generator 7 reference signal and a selective amplifier 11. The output unit 13 to determine the coordinates of oversize connected to the input unit 14 controls the inclusion of the barrier mechanisms and the input unit 15 final control blocks 14 activation control barrier mechanisms and 15 final inspection are interconnected by a bus data exchange. To the input unit 15 final control connected receivers 4, placed in the plane of the gate, and the output connected to the input unit 6 of the control of scanning. The output unit 14 controls the inclusion of the barrier mechanisms connected to the inputs of block 16 of the switching devices, the outputs of which are connected unit 17 switches danger, block 18 notices trains and mechanisms 19 boom. To the input unit 14 controls the inclusion of the barrier mechanisms connected to the sensor 20 touch.

The inventive device operates as follows. In the absence of vehicles on the site closer to the overall goal 1 guide plates 2 do not suffer from mechanical effects and the radiation from the emitters 3 freely reach the receiver 4. The scanning unit 5 searches for objects within the scanning area 8 covering section adapted the program to the overall goal, in this case the algorithm and scanning parameters, in particular the limits of the scan area 8 are determined by control signals from the control block 6 scanning. Emitted by the unit 5 of the scanning signal is modulated, the frequency and phase of the modulating signal is rigidly set by the generator 7 reference signal.

When the vehicle within the scanning area 8 receiver 10 will register the reflected signal will be output from the named receiver for selective amplifier 11, and with the release of the latest cleaned from noise and amplified to the desired value signal is fed to the input unit 12, the detection of the reflected signal, the output of the last depending on the parameters of a received signal, a signal is generated logical zero or one. The signal level of the logical unit indicates that at the moment (at a given spatial position of the beam scanner) found a physical object. Further according to the signals from unit 6 controls the scanning generator 7 reference signal and a selective amplifier 11 in block 13 of determining the coordinates of oversize on the basis of the analysis reflected from the vehicle 9 signals the computation of basic parameters of the vehicle (size, position, velocity, and acceleration). Unit 13 opredelenijaja of oversize implemented on the basis of the microprocessor, that greatly simplifies the standard computational procedures (speed of the frequency difference between the incident and reflected signals according to the formula of the Doppler effect and the distance on the phase shift and so on), the result of which is the calculation of the current coordinates of the size and timing of the expected passage of the vehicle through the plane of the dimensional gate. The received data is transferred in block 14 controls the inclusion of the barrier mechanisms, also is microprocessor-based.

If the maximum values of the calculated parameters are within acceptable levels, and if the actual values of these parameters are defined by the unit 15 final inspection on the basis of the analysis of the signals from the receivers 4, during the passage of the gate plate, consistent with the settlement, the output unit 14 controls the inclusion of the barrier mechanisms generated control signals correspond to the original level until the vehicle. Technical implementation unit 14 controls the inclusion of the barrier mechanisms and block 15 of the final control on the basis of the microprocessor allows the use of algorithms comparison of the calculated and actually measured data, based on the methods of correlation analysis, which in turn ensures high reliability p is innate solutions.

In that case, if it is determined sustainable statistical dependence, indicating a significant discrepancy between the calculated and actually measured data, block 15 final control produces a correction signal which is fed to the correction input unit 6 controls the scan.

When in the scan area 8 of the vehicle 9, the dimensions of which exceed the allowable maximum value, the control unit 14 incorporating the barrier mechanisms gives a corresponding signal to the input unit 16 of the switching device in block 17 alarms of danger. This signal includes light and sound alarms, warning the driver about the inadmissibility of further movement. Thus, a dangerous situation can be liquidated at the time of occurrence.

If the vehicle is stopped to the plane of the gate, there is a real threat that the fixed unit 15 final inspection. In this case, the signal from block 15 of the final control unit 14 controls the inclusion of the barrier mechanisms, a signal is generated, by which the block 16 switching devices in addition to enabling unit 17 switches the dangers enables the block 18 notices trains and actuation mechanisms 19 is ograzhdeniya. Thus, the approaching train receives a signal prohibiting further movement, and the mechanisms boom prevent further advancement of the vehicle in the direction of artificial structures. Similarly, the unit 14 controls the inclusion of the barrier mechanisms responds to the sensor signal 20 touch to restrictive strap 2.

In General, the use of this device can prevent the development of the prerequisites of an emergency situation in a real accident, to minimize the possible negative socio-economic consequences.

Literature

1. Instruction manual railway crossings of the Ministry of Railways of Russia, "Transport", 21.07.97 g - 103 C.

2. The device for determination of oversize vehicles. Shevandin M.A., Annenkov A.M., Zhukov V.I., Levin, B.A., Volkov A.V. A.S. No. 118 1925 CL IPC WC 9/02, publ. B. I. No. 36 of 30.09.85,

3. The device for determination of oversize vehicles. Code grnte 732985 from 27.11.2003,

Device for control of oversize vehicles containing typical dimensions of the gate, at the top of which are placed in the guide plates, and the emitters and receivers connected to the unit, determine the coordinates of oversize, the output of which is connected with the memory unit and a control unit enabling the barrier mechanisms, ex is different, however, that introduced additional control unit is scanning, the scanning unit, the reference signal generator, the receiver of the reflected signal, the selective amplifier, a detection unit, a touch sensor, the final block of the control unit of the switching device, the block of detectors danger, block notices trains and mechanisms boom, and one of the outputs of the control block scan is connected to the input of the scanning unit, to another input of the specified block is connected to the reference signal generator, the output of the receiver of the reflected signal is connected to a selective amplifier and to the output of the selective amplifier polucheny detection unit and one of the inputs of the block defining the coordinates of oversize, to the other input of which is connected to the outputs of the control unit of the scanning and reference signal generator, the block defining the coordinates of oversize connected with the control unit turning on the barrier mechanisms, to the inputs of the block final control connected to the outputs of the receivers placed in the plane of the gate, and the output block of a final control is connected to the input of the control unit of the scanning to the input of the control unit turning on the barrier mechanisms connected to the output of the touch sensor, and the output control unit turning on the barrier mechanisms connected to the input of the block included the Oia actuators, moreover, the outputs of the latter is connected to the unit alarms of danger, notice the trains and to the mechanisms of the boom.



 

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