Device to alert people at railway pedestrian crossing about train approach
SUBSTANCE: alert system comprises annunciator of approach to dangerous point connected via communication line with receiver arranged at locomotive, decoder, memory unit, gate multivibrator, three-input OR element, control circuit, reset pulse generator and people presence control pickups.
EFFECT: higher safety.
1 dwg, 1 tbl
The invention relates to a device for automatic notification of the approach of rolling stock to the zone pedestrian crossing over the railroad tracks at the same level with the head of rails.
Known automatic alarm at a pedestrian crossing over the railroad tracks, while providing an approximation of the rolling stock the inclusion of traffic lights pedestrian crossing and electric calls (1. Typical design decisions 411005-TPD. Pedestrian crossings equipped with sound and light alarm). Sensor oncoming train in such devices is the rail circuit. The disadvantages of the known devices is that the audible alarm is triggered when the approximation of the rolling stock to move regardless of the actual presence of citizens in the areas of pedestrian crossings and their locations, and the audio signal is often no means of rolling stock, and additional detectors placed in the area of the crosswalk. When driving on a pedestrian crossing, crossing two or more railway lines, this fact significantly complicates the identification of the actual position of the source of danger. Among the disadvantages we also note that the factor audible alarm even in the absence of citizens that negative the impact on the noise environment in the surrounding areas.
Also known device type motion sensors (presence) (2. The motion sensor MW-RS02. http://www.transistor.ru/pdf/arlight/booklets/booklet_mw - sensors.pdf), which is capable of controlling electrical devices and appliances when detecting people in the scanned area. The disadvantages of such devices is limited functionality.
The closest in technical essence is a device for warning of the approach to the obstacle (3. Device for warning of approaching an obstacle on the locomotive. A. S. No. SU 1643273 A1 B61L 3/04). This device consists of a track sensor placed in close proximity to the railroad tracks, and posted on the locomotive receiver unit alarm and acoustic signalling device (whistle of the locomotive). When the train was approaching the area of the signals from the sensor receiver to a received signal, generates a command for the block enable locomotive alarm sound whistle or Typhon locomotive.
This device and made for the prototype. The known device has the disadvantage. The device beeps without regard to the actual presence of people in areas of pedestrian crossing. The technical result of the invention is to improve the safety of citizens at a crosswalk with minimal noise impacts on the physical environment. This is especially true for areas commuter rail movement adjacent to residential buildings.
The invention consists in the following. Part of the prototype (3) that contains the proximity sensor to a dangerous place, linked by a communication channel with the receiver placed on the locomotive, the output of which is connected to the decoder, one output of which is connected to the memory block, the output of the memory block is in turn connected to the input of the one-shot, the output of the one-shot is connected to one of the three inputs Tregubova element OR to another input of the specified element connected rear contacts button (pedal) enable beep locomotive low volume output of the specified element OR connected to the input of the control circuit signal low volume locomotive, rear contacts button (pedal) enable beep locomotive and output the one-shot is connected to the inputs of the processing unit reset pulse, the output of which is connected to the reset input (erase data) of the memory block also includes a sensor to monitor the presence of people in the accumulation zone pedestrian crossing and the control sensor of the presence of people in the danger zone of ways and intertrack spaces, connected by a communication channel through the above-mentioned receiver and the connected decoder with two memory blocks, each of the outputs is Loka memory is connected to the input of the corresponding one-shot, the output of one of these odnovorov connected to the third input Tregubova element OR, as the output of another - to the input of another element OR, to the other input of which is connected the rear contacts button (pedal) high volume, the output of the specified element OR connected to the input of the control circuit signal high volume locomotive, the outputs of the two last-mentioned odnovorov and rear contacts button (pedal) high volume is also connected to the inputs of the processing unit reset pulse information in the last two blocks of memory.
The present invention is illustrated in the drawing, figure 1, on which the sensor 1 approximation to a dangerous place, sensor 2 control of presence of people in the accumulation zone pedestrian crossing and sensor 3 control of people's location in a hazardous area ways and intertrack spaces pedestrian crossing connected across a communication channel to the receiver 4, located on the locomotive, the output of the receiver is connected to the input of the decoder 5, one end of which is connected to the input of recording information in the memory unit 6, the output of which is connected the first one-shot 7, the output of which is connected to one of inputs Tregubova element OR 8, the output of which is connected to the input circuit 9 enable beep locomotive low-volume 10. To the second input Tregubova element is OR 8 connected to the rear contacts button (pedal) 11 enable beep locomotive small volume. The second output of the decoder 5 is connected to the input of the second memory block 12, the output of which is connected to the input of the one-shot 13, the output of the latter is connected to the third input Tregubova element OR 8. The third output of the decoder 5 is connected to the input of the memory unit 15, the output of which in turn is connected to one input of the OR element 16, the output of the specified element connected to the input circuit 17 enable beep locomotive large volume 18 locomotive. The outputs of odnovorov 7, 13, 18 are connected to respective inputs of the block 20 forming pulses reset, the outputs specified block is connected to the reset inputs of the respective memory blocks 6, 12, and 14. Block 20 pulse-forming discharge contains three identical chains, each of which consists of serially connected inverter signals corresponding to the one-shot and differentiating network, the output of which is connected to the reset input of the corresponding memory block 6, 12, or 14.
The operation of the device is as follows. When approaching the rolling stock to the placement of the pedestrian crossing on the distance range of the communication channel signals from sensors 1, 2 and 3 arrive at the receiver 4. From the output of the receiver, these signals are sent to the decoder 5. If the area of the pedestrian crossing and in the accumulation zone pedestrian crossing people do not, then the signal is high the level appears at the output of the decoder, associated with the input register of the memory unit 6. The same output signal from the memory unit 6 starts the one-shot 7. The output of the last signal of high level is generated at the time of 2-3 seconds. Through trehochkovoy element OR 8 this signal is fed to the input circuit 9 enable beep locomotive low-volume 10. The locomotive by pressing the button (pedal) 11 can forcibly increase the duration of the alarm or to give repeated signal. In this case, the signal will sound as long as the button is pressed (pedal) 11, and through the rear contacts of the specified button (pedal) a high signal appears at the second input trehochkovoy element OR 8. Further, the enable signal locomotive low-volume 10 is described above order.
When receiving the signal from the sensor 2 control of presence of people in the accumulation zone pedestrian crossing signal of high level appears at the input of the memory unit 12, which will lead to the inclusion of the one-shot 13 times 4-6 C. when the third input Tregubova element OR 8, this signal goes to the input circuit 9 enable beep locomotive low-volume 10 already for a longer time.
In that case, if sensor 3 control of people's location in a hazardous area ways and intertrack spaces pedestrian any are found, it is suitable the information received over the communication channel to the receiver 4, then on the third output of the decoder 5 is additionally formed a high signal, which will continue to be registered in the memory unit 14. The output signal from the memory unit 14 starts the one-shot 15. The output of the last signal of high level is generated at the time of 4-6 seconds. This signal, when input element OR 16, causes the formation of a high signal on the circuit 17 enable beep locomotive large volume 18 at the time specified in table 1.
|The algorithm selects the audio signal|
|The levels of the signals from the sensors||Sound signals locomotive|
|Sensor 1 approaches the transition||Sensor 2 (control fully funded areas)||Sensor 3 (control zone path and intertrack spaces for pedestrian crossing)|
|1||0||0||Short St is the drain|
|of 4-6 sec|
|1||1||1||The large signal|
|STU 4-6 sec|
The locomotive by pressing the button (pedal) 19 may force to increase the duration of the alarm or to give repeated signal. In this case, the signal will sound as long as the button is pressed (pedal) 19, and through the rear contacts of the specified button (PE is Ali) a high signal appears at the second input trehochkovoy element OR 8. Further, the enable signal locomotive large volume 18 is described above order.
Reset information in each of the memory blocks occurs at points in time corresponding to the end of the positive pulse at the output of the corresponding one-shot, automatically through the block 20 pulse-forming discharge. Selective reset information in the memory blocks allows to take into account rapidly changing environment at pedestrian crossing, thereby providing high reliability alert citizens on pedestrian crossing signals corresponding level.
Sources of information
1. Typical design decisions 411005-TPD. Pedestrian crossings equipped with sound and light alarm. Roszheldorproject, M., 2010
2. The motion sensor MW-RS02. http://www.transistor.ru/pdf/arlight/booklets/booklet_mw-sensors.pdf.
3. Device for warning of approaching an obstacle on the locomotive. A. S. No. SU 1643273 A1 B61L 3/04.
Device alert citizens on a pedestrian crossing over the railroad tracks on the approximation of the rolling stock that contains the proximity sensor to a dangerous place, linked by a communication channel with the receiver placed on the locomotive, the output of which is connected to the decoder, one of the outputs of which are connected to the memory block, the output of the memory block is in turn connected to the input of the one-shot, Ihad the one-shot is connected to one of the three inputs Tregubova element OR to another input of the specified element connected rear contacts button (pedal) enable beep locomotive low volume output of the specified element OR connected to the input of the control circuit signal low volume locomotive, and the output of the one-shot is connected to one input of the processing unit reset pulse, the output of which is connected to the reset input (erase data) of the above-mentioned block memory, characterized in that it additionally has a sensor monitoring the presence of people in the accumulation zone pedestrian crossing and the control sensor of the presence of people in the danger zone of ways and intertrack spaces, linked by a communication channel through the above-mentioned receiver connected to the decoder, and the second and third outputs of the decoder are connected with two memory blocks, the output of one of these memory blocks is connected to the input of the corresponding one-shot, and the output of the one-shot is connected to one input Tregubova element OR, alternatively, the output of another memory block is connected to another one-shot, and the output of the one-shot is connected to one input of the second element OR, to the other input of which is connected the rear contacts button (pedal) high volume, thus the outputs of each of odnovorov individually connected to the reset inputs of the corresponding block is in memory through the forming unit impulse.
SUBSTANCE: invention relates to automotive parking helps. Control device comprises computer to determine the distance to parking point in parking lot for vehicle to overcome, camera to register situation nearby the vehicle, interface for connection to device to output instructions on manoeuvring at motion to parking point, interface for connection with device for manual input of parking space boundaries and interface for connection to means intended for setting relationship between parking space boundaries and vehicle position. Camera is set to view the space ahead of vehicle. Portable computer comprises above described control device. Proposed method comprises registration of situation nearby vehicle by said camera, calculation of distance to parking point in parking lot for vehicle to overcome, outputting of instructions on manoeuvring at motion to parking point Picture produced by camera is used for manual input of parking space boundary to be compared with current position of vehicle.
EFFECT: efficient parking help for driver.
11 cl, 4 dwg
SUBSTANCE: set of inventions relates to device and method for parking assistance. Device contains available parking space recorder, final target parking position setting facility, contact determination facility, final target parking position calculation facility, the first, the second and the third path calculation facility, the first path, the second path and the third path display facility. The contact determination facility provides determination whether there is the first path for vehicle to reach final target parking position without contacting with the edge of available parking space. The method consists in the following: available parking space is recorded, final target parking position is set, existence of the first path for vehicle to reach final target parking position without contacting with the edge of available parking space is determined. The first path is displayed if it exists. Angle of approach and not final target parking position is calculated if the first path does not exist. Not final target parking position is position that should be reached when vehicle is entering available parking space at approach angle. The second and the third paths are calculated and displayed.
EFFECT: higher efficiency of parking assistance.
10 cl, 15 dwg
SUBSTANCE: device according to the first version includes a steering angle detection unit, an operation detection unit in which the steering wheel returns to a neutral position after turning right or left, and a parking mode selection unit. The device according to the second version includes a steering angle detection unit, an operation detection means in which the steering wheel returns to a neutral position after turning right or left, and a parking mode selection means. The method includes detecting the steering angle of the steering wheel, detecting an operation in which the steering wheel returns to a neutral position after turning right or left, selecting one parking mode on the right side of the vehicle or left side of the vehicle from a plurality of parking modes.
EFFECT: easy establishment of the desired parking position.
21 cl, 29 dwg
SUBSTANCE: invention relates to aviation, in particular to methods of navigation assistance for aircraft path determination. Navigation assistance method consists in determination of future approach path using evaluation of forecasted safe radiuses on future path based on calculation of limit moment starting from which a forecasted safe radius exceeds or is equal to alarm signal generation limit and calculation of limit departure moment which corresponds to maximum moment when an aircraft should leave its predetermined path along which it has been moving, to be able to go to safe altitude.
EFFECT: limitation of departure procedures utilisation during loss of satellite navigational information thus reducing airspace saturation and limiting costs and duration of flights.
15 cl, 5 dwg
SUBSTANCE: invention relates to vehicle driving control device. The device contains side object detector, control device to actuate lateral movement inhibition control, start of entering adjacent lane detector, actuation suppressor to suppress actuation of lateral movement inhibition control. Lateral movement is followed by changing vehicle transversal position relative to lane. Suppression of actuation of lateral movement inhibition control is performed when a vehicle has started to enter adjacent traffic lane, and side object is detected in the adjacent traffic lane.
EFFECT: prevention of improper interference in control for vehicle lateral movement inhibition during changing traffic lane.
22 cl, 11 dwg
FIELD: physics, optics.
SUBSTANCE: invention relates to optoelectronic devices to be used at carries as extra detector of objects in areas invisible for driver. Proposed optical sensor comprises transceiving channels, each including electronic unit, pulse source of optical radiation and photoreceiver, all being connected with electronic unit. Said electronic unit comprises reflected signal processor to execute control algorithm on the basis of measurement of time interval between radiation and registration of signal reflected from the object. Optical radiation source and photoreceiver are arranged, preferably, nearby so that their optical axes are parallel. The number of radiators in said sensor is defined by the relationship n ≥ β/α, where n is the number of radiators, β is central angle of controlled sector, α is beam angle.
EFFECT: higher precision and reliability of detection.
SUBSTANCE: set of inventions relates to driver helps. Proposed device comprises module to determine beginning of the control, vehicle controller and control suppression module. Method of rendering help comprises defining the control beginning, vehicle control step and control suppression step whereat control over turning force application to the vehicle is suppressed for preset time interval after vehicle transverse position relative to road lane approaches said lane.
EFFECT: in situ help for drive in motion.
11 cl, 14 dwg
SUBSTANCE: set of inventions relates to driver helps. Proposed driver's help comprises lateral hindrance detector, hindrance approach inhibit controller, overtaking detector, control suppression module and predicted position estimation module. Note here that hindrance approach inhibit controller defines the beginning of hindrance approach control on the basis of predicted position estimated by predicted position estimation module. Hindrance approach inhibit controller defines the beginning of hindrance approach control on the basis of predicted position estimated by predicted position estimation module. When overtaking is detected by overtaking detector hindrance approach inhibit module inhibits the control over beginning of hindrance approach by aforesaid controller as opposed to conditions when overtaking is detected but not executed so that control over hindrance approach prevention is suppressed.
EFFECT: development of hindrance approach prevention controller.
14 cl, 15 dwg
SUBSTANCE: method includes synchronisation of reference transmitters clocks, measuring time of radio signal run from antennas of three and more reference transmitters located at distance from transport facilities (TF) and pedestrian to antenna of radio navigation device located on TF or pedestrian, calculation of TF and pedestrian coordinates using computing device, transmission of TF and pedestrian coordinates data and their identification numbers to information computer centre via radio channel, and transmission of alert signals to road users. Radio masts with reference transmitters are installed along roadway in fixed points with known three-dimensional coordinates of antennas. Reference transmitters clock synchronisation with the clock of information computer centre is performed via existing between them optical carrier. Digital road map is created by means of splitting roadway into pixels with known three-dimensional coordinates, with indication of coordinates and meanings of road signs and traffic lights. On TF, two radio navigation devices mutually spaced along TF longitudinal axis are installed, and from their continuously measured three-dimensional coordinates and digital road map the TF position relative to axial line of roadway is determined at any moment.
EFFECT: invention provides higher traffic safety.
8 cl, 2 dwg
SUBSTANCE: optical radiation from vehicles moving on the same and opposite lanes is simultaneously received at a car; said optical radiation is converted to electric signals; the distance to vehicles on the same and opposite lanes is calculated; the approach speed of said vehicles is calculated; geometric dimensions of the vehicle moving in the same direction are determined. Based on said information, light signalling is issued to keep a safe distance from the vehicle in front and on possibility of overtaking in conditions when there is a vehicle in the oncoming lane. Also the maximum acceleration of the car given its current load and technical condition is determined; the longitudinal slope of the road is determined; the possibility of safe overtaking the vehicle in front is determined based on the distance travelled over the overtaking time. During overtaking, conformity of the current values of acceleration, speed of the overtaking car and distance to an oncoming vehicle with calculated is monitored and a light and audio signal is emitted to prevent overtaking if there is risk of collision, and also on a dangerous distance to the vehicle in front, based on the slope of the road.
EFFECT: group of inventions increase reliability of evaluating safety of overtaking and selecting a safe distance to the vehicle in front by taking into account such additional factors as slope of the road surface, the current and maximum possible acceleration of the car given the current load.
2 cl, 2 dwg
FIELD: physics, signalling.
SUBSTANCE: method is intended to alert the owner of protected items to the removal of said items from a given proximity zone and is carried out with the aid of a transmitting and receiving device carried by the owner and transmitting and receiving devices attached to the protected items. The alarm signalling is implemented in that the telephone periodically transmits, via communication channels established by Bluetooth devices of the telephone and tags, alarm signalling codes that are unique to each tag and are in the form of series of interrogation radio alarm signals with set series repetition intervals for each tag and radio alarm signal repetition intervals within a series. The telephone activates warning signals identifying a tag with an activated warning upon expiry of set time periods for the transmission and return reception by the telephone of the encoded radio alarm signals, said periods being counted from the times when the telephone sends the first radio alarm signals in the series if, during these periods, the telephone does not receive at least one return radio signal with an unimpaired alarm signalling code from each of the tags.
EFFECT: high noise-immunity.
7 cl, 2 dwg
SUBSTANCE: device transmits a message signal to the call system of a medical institution when the device receives and identifies an acoustic signal denoting the alarm signal of an acoustic device or other parameter. The device has an acoustic sensor, a signal processing module and an interface module. In one version, a band-pass filter, a time selector and a processor process the received acoustic signal in order to identify the acoustic alarm signal. A storage device can be used to store a set of identification criteria for identifying different acoustic alarm signals and to store a set of message signals. The transmitted message signal is selected from the stored set of message signals.
EFFECT: simple, relatively cheap means of notification, which ensures a low probability of receiving a false alarm signal.
21 cl, 7 dwg
SUBSTANCE: system has a network of VHF communication masts and a control centre which exchanges signals with the VHF communication masts, main detection units, having a transmitter, a receiver and a transponder, which switch on when the receiver receives a signal transmitted by the control centre through a VHF communication mast, auxiliary detection units which connect the transmitter emitting the signal received by the receiver of one main detection unit, whose transmitter retransmits that signal to the control centre through VHF communication masts. Corresponding methods realised by said system are also disclosed.
EFFECT: high reliability and simplification of the system units.
29 cl, 2 dwg
FIELD: information technology.
SUBSTANCE: control system uses wireless network to provide connection between host computer and field devices. Field devices usually are under low voltage or in standby mode. Only those field devices are switched on which support connection with host computer. These field devices are switched on until connection between field devices and host computer is terminated.
EFFECT: electric energy saving in wireless cellular network.
17 cl, 6 dwg
FIELD: information technology.
SUBSTANCE: host computer communicates with field devices by means of sending control messages and receiving response messages via wireless network. When host computer sends control message via wireless network the host computer is given predicted response time within which a field device receiving the message should respond. Wireless network cycles between wait status and active status based on wireless network "current source connected/current source disconnected" cycle. Predicted response time is based on current status of wireless network, "current source connected/current source disconnected" cycle, and time of field device on, execution of action (like parameter measurement) and output of response messages.
EFFECT: providing possibility to determine if there was breakdown in connection with one of field devices when communicating via wireless network.
13 cl, 6 dwg
SUBSTANCE: domestic electrical appliance comprises excitation element installed on surface of domestic electrical appliance so that the first electrical signal that arrived to excitation element causes according first vibration, which is sent to surface, and the second vibration generated in surface is sent to excitation element, which generates the second electric signal in compliance with the second vibration, besides excitation element is one of magnetostrictive excitation element and electrodynamic excitation element.
EFFECT: invention provides loud and high-quality sound without deterioration in design of domestic electrical appliance.
FIELD: the invention refers to radio technique and may be used in fire fighting systems in quality of a warning device about the fire danger for invalids with sensor disturbances in health(hearing, vision, combined disturbances).
SUBSTANCE: the warning device has an alarm stub, a control block, a state indicator, a voltage converter, a stroboscope, a power amplifier, a low frequency radiator, an accumulator, a feeding controlling block and the charge of the accumulator. At that the controlling block produces a specialized low frequency non-periodic signal of a given algorithm which goes after that through the power amplifier to the low frequency radiator converts it into acoustic signals in the range of 40-100 Hz with the power up to 105 dB; and also produces a signal actuating the voltage converter which provides the stroboscope's work and forms signals of light warning with pulse recurrence rate 20-40 impulses in a minute.
EFFECT: increases efficiency of the warning device.
2 cl, 3 dwg
SUBSTANCE: invention relates to railway automatics and telemechanics. The device for diagnostics of condition of electric resistance of rail lines in rail track circuits in sections of railways with AC electric traction comprises a recorder, a summator, a voltage divider, a threshold element and an alarm unit. The device is additionally equipped with the second recorder, the second summator, the second voltage divider, one logical NOT element, one switching element, one communication line, four rectification elements, four comparison elements, four alarm units, five threshold elements, five logical OR elements and four measurement transformers.
EFFECT: solution is aimed at provision of automatic diagnostics.