CN111717241A - Crossing warning system and crossing warning control method - Google Patents
Crossing warning system and crossing warning control method Download PDFInfo
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- CN111717241A CN111717241A CN202010623713.9A CN202010623713A CN111717241A CN 111717241 A CN111717241 A CN 111717241A CN 202010623713 A CN202010623713 A CN 202010623713A CN 111717241 A CN111717241 A CN 111717241A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/007—Safety arrangements on railway crossings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/041—Obstacle detection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/08—Operation of gates; Combined operation of gates and signals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/12—Visible signals
- B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
- B61L5/189—Light signals; Mechanisms associated therewith, e.g. blinders using flashing light sources
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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Abstract
The embodiment of the application provides a crossing warning system and a crossing warning control method. The crossing control cabinet and the network camera are connected with the remote monitoring system, and the alarm system and the barrier identification system are connected with the crossing control cabinet. The alarm system comprises an explosion flash warning device, a forenotice annunciator, an electronic guardrail and a plurality of vehicle detection sensors. The remote monitoring system is used for displaying the monitoring image transmitted by the network camera and sending a control instruction to the crossing control cabinet; the alarm system is used for determining the running state of the train; the crossing control cabinet is used for controlling the burst flashing warning device, the advance warning signal machine and the electronic guardrail to carry out warning work according to a set execution sequence according to the train advancing state and/or the control instruction; the obstacle identification system is used for detecting obstacles in the alarm prompting process.
Description
Technical Field
The application relates to the technical field of traffic control, in particular to a crossing warning system and a crossing warning control method.
Background
Railroad crossings, known in some areas as level crossings, are planar intersections of roads and railways, and the crossing locations are devoid of overpasses or tunnels. Early railroad crossings were attended by a guard who required some instructional action to signal all vehicles and pedestrians at the crossing location to stop and to direct the vehicles and pedestrians away from the railroad track when a train was about to pass through the crossing. To enhance protection and facilitate guidance, railings have been introduced to block the passage of vehicles and pedestrians into the railroad.
In recent years, the management of the crossing tends to be automated, but generally, one worker is required to manage one crossing, and since the crossings are scattered along the railway, most crossings need to be attended all day long, the scattered management mode is inefficient. And if only the monitoring video of each crossing is accessed to the monitoring center for remote monitoring, the centralized monitoring mode can improve the operation efficiency of the railway crossing to a certain extent, but the potential safety hazard of the crossing is larger.
Disclosure of Invention
The application aims to provide a crossing warning system and a crossing warning control method, which can take the management efficiency and safety of the crossing into account.
In a first aspect, an embodiment of the present application provides a crossing warning system, where the crossing warning system includes a remote monitoring system and a plurality of field monitoring systems in communication connection with the remote monitoring system, and the field monitoring systems include a crossing control cabinet, a network camera, an alarm system, and an obstacle identification system;
the crossing control cabinet and the network camera are both connected with the remote monitoring system, and the alarm system and the barrier identification system are both connected with the crossing control cabinet;
the alarm system comprises an explosion flash warning device, a forenotice annunciator, an electronic guardrail and a plurality of vehicle detection sensors;
the remote monitoring system is used for displaying the monitoring image transmitted by the network camera and is also used for issuing a control instruction to the crossing control cabinet deployed at the target crossing;
the alarm system is used for determining the train running state of the target crossing according to the plurality of vehicle detection sensors;
the crossing control cabinet is used for controlling the burst flashing warning device, the advance warning signal machine and the electronic guardrail to carry out warning work according to a set execution sequence according to a train advancing state and/or a control instruction issued by the remote monitoring system;
and the barrier identification system is used for detecting the barrier when the explosion and flash warning device is in an alarm prompt state.
In above-mentioned road junction warning system, can monitor a plurality of road junctions through remote monitering system, can carry out alarm control to the final controlling element such as the flashing warning device of deployment at the road junction scene through the road junction switch board among the on-the-spot monitored control system, advance the signal machine, electronic barrier, and when flashing warning device has been in the warning suggestion state, can carry out the barrier through barrier identification system and detect, with this can realize strengthening the protection suggestion on warning suggestion basis, can compromise road junction managerial efficiency and safety problem, can reduce road junction potential safety hazard.
In an alternative embodiment, the obstacle recognition system includes an obstacle post, a signal emitter, and a moving object detecting device;
the barrier column, the signal transmitter and the moving object detection device are all connected with the crossing control cabinet;
the crossing control cabinet is also used for controlling the barrier posts to extend out of the ground when the moving object detection device detects the moving object and controlling the signal transmitter to send crossing abnormal information so that a signal receiver arranged on a target train can receive the crossing abnormal information and carry out emergency braking according to the received crossing abnormal information.
Through the embodiment, because the warning suggestion has been carried out when the warning device that explodes flashes is in the warning suggestion state, the barrier of crossing department detects this moment in addition, can further reduce the potential safety hazard, the barrier condition that detects both can feed back to crossing switch board and remote monitering system, also can directly give the train that gets into communication range through the broadcast to the driver on the train in time learns the crossing condition, thereby be favorable to in time braking.
In an optional embodiment, the explosion warning device comprises a base vertical rod, a shade type alarm, an explosion warning lamp, a connecting pipe, a connecting wire and a lamp base plate;
the stand vertical rod is fixedly connected with the shade type alarm machine;
one end of the connecting pipe is connected with the stand vertical rod, the other end of the connecting pipe is connected with the lamp base plate, and the lamp base plate is used for bearing the explosion warning lamp;
the explosion flash warning lamp is electrically connected with the shade type alarm machine through the connecting wire.
Through the above embodiment, all-round warning suggestion can be carried out at the road junction, the limited problem in field of vision that traditional alarm machine exists is improved.
In an optional embodiment, the explosion warning lamp and the lamp base plate are connected in an absorption mode.
Through the above embodiment, the whole flashing warning device has compact structure, is convenient to install and has lower equipment cost.
In an optional implementation manner, an audio amplifier is disposed on the burst flash warning device.
Through above-mentioned embodiment for exploding flashing warning device provides abundant warning function.
In an alternative embodiment, the plurality of vehicle detection sensors in the warning system includes a first sensor, a second sensor, a third sensor;
the first sensor and the second sensor are positioned on the same side of the target crossing;
the first sensor and the third sensor are respectively positioned at two sides of the target crossing;
wherein the train traveling direction is determined according to the triggered time of each of the plurality of vehicle detection sensors.
Through the embodiment, the train running state can be determined quickly based on the deployment position and the trigger time of each sensor.
In an optional embodiment, the distance between the installation position of the first sensor and the target crossing ranges from 150 meters to 300 meters, and the distance between the installation position of the second sensor and the target crossing ranges from 150 meters to 300 meters.
The above embodiment provides a sensor arrangement.
In an optional embodiment, the remote monitoring system comprises a rack-mounted photoelectric converter, a network switch, an industrial personal computer, a network hard disk video recorder and a monitor;
the monitor is connected with the network switch through the network hard disk video recorder;
the industrial personal computer is connected with the network switch;
the network switch is connected with the rack-type photoelectric converter;
the rack-mounted photoelectric converter is used for performing data interaction with the plurality of field monitoring systems through a single-mode optical fiber network;
the monitor is used for displaying monitoring images acquired by the network cameras in the plurality of on-site monitoring systems;
the industrial personal computer is used for carrying out data interaction with the crossing control cabinets in the plurality of field monitoring systems.
The implementation mode of the remote monitoring system is provided through the implementation mode.
In a second aspect, an embodiment of the present application provides a crossing warning control method, which is applied to the crossing warning system of the first aspect, and the method includes:
determining a train advancing state of the target crossing according to the plurality of vehicle detection sensors;
when the situation that a target train advances towards the target crossing is determined, the crossing control cabinet controls the burst flash warning device to give an alarm prompt and starts alarm timing;
when the alarm timing is finished, controlling the electronic guardrail to fall down, carrying out in-place detection on the electronic guardrail, and when the falling rod of the electronic guardrail is detected to be in place, controlling the forecast annunciator to be started so as to provide a railway forecast signal for the target train;
when the burst flashing warning device is in an alarm prompting state, if a moving object detection device in the obstacle identification system detects that a moving object exists in an obstacle detection area of the target crossing, the obstacle column in the obstacle identification system is controlled to extend out of the ground, and a signal transmitter in the obstacle identification system is controlled to send crossing abnormal information, so that a signal receiver arranged on the target train can receive the crossing abnormal information.
By the method, crossing efficiency and safety can be considered, warning is carried out through cooperation among all devices/systems in the crossing warning system, linkage control and automatic execution can be achieved, processing efficiency can be improved compared with a distributed control mode, labor productivity of railway crossing operation can be improved, management cost is reduced, and the method has good popularization value for railway crossing management of factory and mining enterprises. In the method, through the cooperation and the control between the alarm system and the barrier identification system, double protection can be realized, and the potential safety hazard of the crossing can be reduced.
In an alternative embodiment, the plurality of vehicle detection sensors in the warning system includes a first sensor, a second sensor, and a third sensor, the first sensor and the second sensor being located on a same side of the target crossing, the first sensor and the third sensor being located on respective sides of the target crossing, the method further comprising:
when the fact that the first wheel and the tail wheel of the target train trigger the third sensor is detected, the fact that the target train leaves the target crossing is determined, after time delay of a specified time length is carried out, the electronic guardrail is controlled to ascend, and in-place detection is carried out on the electronic guardrail;
and when the target train is determined to leave the target crossing and the electronic guardrail lifting rod is detected to be in place, controlling the burst flashing warning device to be closed.
Through the embodiment, each execution device in the alarm system can be controlled to carry out interlocking reset.
In an optional embodiment, the burst warning device includes: frame montant, shade formula alarm machine and explode and dodge the warning light, the frame montant with the structure that the combination of shade formula alarm machine formed with explode and dodge the warning light and connect, through crossing switch board control explode and dodge warning device and report to the police the suggestion, include:
through crossing switch board control the rotatory scintillation of sudden strain of a muscle warning light, and control the red light of shade formula alarm machine carries out scintillation in turn.
Through above-mentioned embodiment, owing to provide the warning suggestion mode of the rotatory scintillation of control flashing warning light, can improve the limited problem in field of vision of traditional alarm machine.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic view of a crossing warning system according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a crossing device layout in an example provided in the embodiment of the present application.
Fig. 3 is a schematic diagram of obstacle detection control in an example provided in the embodiment of the present application.
Fig. 4 is a schematic diagram of an explosion flash warning device according to an embodiment of the present application.
Fig. 5 is a flowchart of a crossing warning control method according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, fig. 1 is a schematic view of a road junction warning system according to an embodiment of the present disclosure.
As shown in fig. 1, the crossing warning system includes a remote monitoring system 100 and a plurality of on-site monitoring systems 200 communicatively connected to the remote monitoring system 100.
Each of the on-site monitoring systems 200 is configured to monitor and manage a crossing. The remote monitoring system 100 serves as a remote centralized control center for each crossing, and as shown in fig. 1, the remote monitoring system 100 may include a rack-mounted photoelectric converter, a network switch, a management terminal, a crossing control operator, a network hard disk recorder (or a matrix server), and a monitor. The crossing control operation machine can be used as an industrial personal computer and can be used for issuing control instructions to each field monitoring device.
The monitor is connected with the network switch through the network hard disk video recorder (or the matrix server). The management terminal is connected with the network switch, and the crossing control operation machine is connected with the network switch. The network switch is connected with the rack-type photoelectric converter.
The rack-mounted photoelectric converter is used for data interaction with a plurality of on-site monitoring systems 200 through a single-mode fiber network.
The monitor is used for displaying monitoring images acquired by each network camera in the plurality of field monitoring systems 200, and the industrial personal computer is used for carrying out data interaction with each crossing control cabinet in the plurality of field monitoring systems 200 so as to realize centralized monitoring on the plurality of crossings.
As shown in fig. 1, each of the plurality of on-site monitoring systems 200 includes: a crossing control cabinet, a network camera, an audio amplifier, an alarm system and an obstacle identification system (not shown in fig. 1). The crossing monitored and managed by the site monitoring system 200 is marked as a target crossing.
The crossing control cabinet and the network camera are both connected with the remote monitoring system 100. The crossing control cabinet, the network camera and the audio amplifier are all connected to a network switch of the field monitoring equipment, and the data of the crossing site can be transmitted to the remote monitoring system 100 through the single-mode optical fiber network by the network switch and the photoelectric converter of the field monitoring equipment.
The crossing control cabinet is a PLC (programmable logic controller) crossing control cabinet, and the inside of the crossing control cabinet comprises a plurality of PLC modules, a relay, an alternating current contactor, a UPS (Uninterruptible Power Supply) and a wiring terminal. The crossing control cabinet is widely applied in the current traffic technical field, so that the discussion on the internal components of the crossing control cabinet is omitted.
A network CAMERA (also called IP CAMERA, IPC for short) is a new generation product that combines the traditional CAMERA and network technology, and can transmit image data through the network, and the receiver only needs to use a standard web browser (such as "Microsoft IE" or "Netscape") to obtain the image content. The network camera comprises a network coding module and an analog camera. The network coding module codes and compresses the analog video signals collected by the analog camera into digital signals, so that the network coding module can be directly accessed to a network switch and routing equipment.
The alarm system and the barrier identification system are both connected with the crossing control cabinet, the crossing control cabinet can acquire detection data of the alarm system and the barrier identification system, and equipment components in the alarm system and the barrier identification system can be directly controlled according to the detection data.
The alarm system and the obstacle recognition system may interact with the remote monitoring system 100.
In the embodiment of the present application, the warning system may perform detection and warning prompt under the direct control of the crossing control cabinet, or may perform warning according to a control instruction issued by the remote monitoring system 100 after sending the vehicle traveling condition of the crossing to the remote monitoring system 100.
The alarm system comprises an explosion flash warning device, a forenotice annunciator, an electronic guardrail and a plurality of vehicle detection sensors.
The explosion and flash warning device can give an alarm under the control action of the crossing control cabinet.
The advance notice signal is used for notifying the driver of the signal display state of the main signal (namely, the station entering signal, the non-automatic block section passing signal and the blocking signal). The forecast signal machine can provide or close the railway forecast signal corresponding to the main signal machine under the control action of the crossing control cabinet. The crossing signal can be low column two display signal.
The electronic guardrail can rise or fall under the control action of the crossing control cabinet, so that the state of the crossing is switched.
In each alarm system, safety control can be carried out on the burst flash warning device, the advance warning annunciator and the electronic guardrail in an interlocking relationship, namely, the starting/resetting execution sequence among the burst flash warning device, the advance warning annunciator and the electronic guardrail is set.
The condition that the burst flash warning device enters an alarm prompting state (for example, a red light of an alarm is on) and the electronic guardrail falls in place is a necessary condition for opening the railway forenotice signal.
Optionally, a delay protection measure can be taken for the motor of the electronic guardrail in the control program, and the action duration of the motor of the electronic guardrail is set to be 20s, so that the situation that the device is burnt out due to long-time operation of the motor caused by in-place detection failure can be avoided.
In each of the site monitoring systems 200, an alarm system is used to determine the train-traveling status of the target crossing from a plurality of vehicle detection sensors.
The crossing control cabinet is used for controlling the burst flashing warning device, the advance warning signal machine and the electronic guardrail in the warning system to carry out warning work according to a set execution sequence according to the running state of the train and/or a control instruction issued by the remote monitoring system 100.
In the embodiment of the application, the obstacle identification system is used for detecting the obstacle when a flashing warning device in the warning system is in a warning prompting state.
Because the warning prompt is already carried out when the burst flashing warning device is in the warning prompt state, the potential safety hazard can be further reduced by detecting the obstacles at the crossing, and the detected obstacle condition can be fed back to the crossing control cabinet and the remote monitoring system 100 or can be directly broadcasted to trains entering the communication range through the radio station. For example, when a moving object is detected, the current crossing condition is broadcasted to a moving train, so that a driver on the train can know the crossing condition in time, and timely braking is facilitated.
FIG. 2 is a schematic diagram of a partial device layout of an in-situ monitoring system 200 in one example.
As shown in fig. 2, the crossing position along the railway and along the highway is marked as a target crossing, and a plurality of vehicle detection sensors in an alarm system can be arranged along the railway of the target crossing. Based on the deployment position of the vehicle detection sensor, the train traveling state can be known by the sequence in which the respective sensors of the plurality of vehicle detection sensors are triggered, for example, whether there is a train approaching the target crossing, whether there is a train entering a monitoring area of the target crossing but merely stopping near the target crossing, or the like.
A set of explosion warning devices (A1, B1 in figure 2) and a forenotice signal (A3, B3 in figure 2) are arranged along the railway of the target crossing according to the train passing direction of the railway. A group of electronic guardrails (A2 and B2 in figure 2) are arranged at the target road junction according to the allowed passing direction of the road. In order to facilitate multi-directional monitoring of the target crossing, a group of network cameras (a 4 and B4 in fig. 2) are arranged at the target crossing, and whether the electronic guardrail at the target crossing works normally or not, whether the target crossing has an abnormal phenomenon or not can be known through images acquired by the network cameras.
As shown in fig. 2, the crossing control cabinet, the network switch, and the photoelectric converter in the site monitoring system 200 may be disposed in a crossing room of a target crossing. The crossing control cabinet can control each burst flashing warning device, each advance warning signal machine and each electronic guardrail of the target crossing to work according to set warning processing logic. In order to obtain clearer crossing monitoring images, a crossing illuminating lamp is arranged at the target crossing and is connected with a crossing control cabinet.
Optionally, the plurality of vehicle detection sensors in the warning system may include a first sensor, a second sensor, and a third sensor.
The first sensor and the second sensor are positioned on the same side of the target crossing. The first sensor and the third sensor are respectively positioned at two sides of the target crossing.
Wherein the train traveling direction is determined according to the triggered time of each of the plurality of vehicle detection sensors.
Optionally, the distance between the installation position of the first sensor and the target crossing ranges from 150 meters to 300 meters, and the distance between the installation position of the second sensor and the target crossing ranges from 150 meters to 300 meters (for example, the first sensor is 300 meters away from the target crossing, and the second sensor is 250 meters away from the target crossing). In other embodiments, a person skilled in the art can set the installation position of each sensor according to actual needs to adjust the distance between each sensor and the target crossing.
In one example, as shown in fig. 3, 6 vehicle detection sensors (C1, C2, C3, D1, D2, D3 in fig. 3) are deployed along the railroad line at one target crossing. The 6 vehicle detection sensors may be pressure sensors that are triggered by pressure as the train passes by the vehicle detection sensors. The sensors C1 and D1 farthest from the target crossing may be used as the first sensors, and the sensors C3 and D3 closest to the target crossing may be used as the third sensors. The C3 and the D3 are distributed on two sides of a road of the target crossing, and a stop line is arranged on the road. Sensor C2 is a second sensor used in conjunction with sensor C1 and sensor D2 is a second sensor used in conjunction with sensor D1. C1 and C2 are located at the left side of the target crossing at 150-300 meters, and D1 and D2 are located at the right side of the target crossing at 150-300 meters. The two indicated arrows in fig. 3 represent the allowed travel directions of the train (opposite directions a and B).
Three sections about the target crossing can be divided by the 6 sensors: the area between sensor C1 and sensor D3 serves as one approach section Q1, the area between sensor D3 and sensor C3 serves as the crossing section Q2 of the target crossing, and the area between sensor C1 and sensor D3 serves as the other approach section Q3. When C1, C2 are triggered in turn, it is determined that the train enters into approach section Q1, if D3 is continuously detected to be triggered, it is determined that the train enters into crossing section Q2 from approach section Q1, after D3 is triggered, if C3 is continuously detected to be triggered, and it is determined that the train has left crossing section Q2, after the last wheel of the train has passed C3. The crossing control cabinet can control the burst flashing warning device, the advance warning signal machine and the electronic guardrail in the warning system to work in a set execution sequence according to the advancing change of the train.
As an implementation manner of alarm control, when the train triggers the sensors C1 and C2 in sequence, a signal relay of the crossing control cabinet falls down to alarm in forward operation, control the burst flash warning device to give an alarm, and control the audio amplifier to give a warning sound (for example, "please stop the step"). After lasting 10 seconds, the two electronic guardrails are controlled to fall to close the crossing, when the last wheel of the train is determined to pass through the crossing and the last wheel of the train passes through the sensor C3, the waiting time is 10 seconds, and after 10 seconds, the signal relay is controlled to be closed, so that the two electronic guardrails are lifted and reset. When the two electronic guardrails are detected to be reset and in place, the alarm is stopped, the burst flash warning device is controlled to end the alarm prompting state, and the audio amplifier stops working. It will be appreciated that when a train approaches and passes the target crossing in the opposite direction of travel (i.e., triggers D1, D2, C3, D3 in sequence), it is also considered to be operating in the forward direction, and a forward operation alarm is required, and the corresponding control logic can refer to the aforementioned processing. When the train triggers C2 before C1, or D2 before D1, the train is considered to be running in the reverse direction (leaving the target crossing).
In the embodiment of the present application, the obstacle recognition system of the on-site monitoring system 200 includes an obstacle column (not shown), a signal transmitter, and a moving object detecting device. The barrier column, the signal emitter and the moving object detection device are all connected with the crossing control cabinet.
The moving object detection device may be an infrared imaging sensing device, or may be a laser radar or the like. The moving object detection device can detect the moving object of the target crossing, and when the target train is close to the target crossing and the flashing warning device is in the warning prompting state, if the moving object in the obstacle detection range of the target crossing is detected, the target crossing is considered to have the obstacle. The dotted line area in fig. 3 can be regarded as the obstacle detection range of the target crossing.
Under the condition that the burst warning device is in the alarm prompting state, the crossing control cabinet can be used for controlling the barrier posts to stretch out of the ground when the moving object detection device detects the moving object and controlling the signal transmitter to send out crossing abnormal information, so that the signal receiver arranged on the target train can receive the crossing abnormal information and carry out emergency braking according to the received crossing abnormal information.
The target crossing can be provided with a signal transmitter of a radio station, the signal transmitter of the radio station can transmit the road condition information of the target crossing in a broadcasting mode, when a target train provided with a signal receiver of the radio station enters the communication range of the signal transmitter, the target train can obtain the broadcasted road condition information and can display the received information on a display of the target train, the display of the target train can display the state of vehicles and pedestrians at the target crossing received by the signal receiver, and a horn on the target train can emit warning sound (for example, send warning sound such as 'train coming' and the like). If the signal receiver on the target train does not receive the crossing abnormality information from the signal transmitter, the target train can normally run according to the railway travel rule, if the signal receiver on the target train receives the crossing abnormality information from the signal transmitter, the train driver can be prompted to perform emergency braking on the target train, so that the target train can stop in time before entering the crossing section Q2, and when the crossing is recovered to be normal, the target train can continue to pass through the target crossing.
As shown in fig. 3, sensing devices (located at E1 and E2 in fig. 3) are respectively disposed between the sensors C1 to D3 and between the sensors D1 to C3, and when it is detected that a target train enters the approaching section Q1 from the left side a of the target crossing and passes through the sensor C2 to enter the obstacle identification area between C2 to E1, the target train satisfies the station communication range, information broadcast by the station at the target crossing can be received, the display of the target train can display the received video, and the horn of the target train gives out a warning sound. The driver of the target train can make an emergency brake according to the crossing abnormality information broadcast from the target crossing so as to make an emergency stop in the section of E1 to D3.
Optionally, as shown in fig. 4, the burst flash warning device in the embodiment of the present invention may include a base vertical rod 301, a shade alarm 302, a burst flash warning light 307, a connecting tube 303, a connecting wire 308, and a light base plate 306.
The base vertical rod 301 is fixedly connected with the shade alarm 302. One end of the connecting tube 303 is connected to the base vertical rod 301, the other end of the connecting tube 303 is connected to the lamp base plate 306, and the lamp base plate 306 is used for carrying the flashing warning light 307. The flashing alarm lamp 307 is electrically connected to the shadow mask alarm 302 through the connection line 308.
Wherein, the flashing warning light 307 is connected with the lamp base plate 306 in an absorption manner.
Optionally, an audio amplifier (not shown) may be disposed on the burst flash warning device. The audio amplifier is connected with a loudspeaker, and when the explosion flash warning device carries out rotary flash warning prompt, the audio amplifier and the loudspeaker are controlled to work, and warning prompt tones are played.
Traditional alarm machine only has seat montant 301 and shade alarm machine 302, consider that oversize vehicle probably is difficult to see the warning light of shade alarm machine 302 when passing through the road junction, and oversize vehicle's engine noise is great, consequently can add the light of exploding and dodging warning light 307 on the basis of shade alarm machine 302, so that vehicle driver and pedestrian when passing through the target road junction, can all-roundly see the light of exploding and dodging warning light 307 of target road junction, thereby reduce the potential safety hazard of road junction.
The flashing warning light 307 can be powered by the power supply of the mask alarm 302. One end of the connecting pipe 303 can be directly inserted into the stand vertical rod 301, the flashing warning light 307 can be located at the top of the flashing warning device, and the magnet of the flashing warning light 307 can be adsorbed on the lamp base plate 306. The end of the connecting pipe 303 far away from the vertical rod 301 of the base is used for fixing the lamp base plate 306. Because whole flashing warning device has adopted tube socket integrated configuration, the mounting means is comparatively simple and convenient, and compact structure and easily realization can provide all-round warning function on traditional alarm machine's basis, improve the restricted problem of sight of traditional alarm machine, need not to change traditional alarm machine, only need on traditional alarm machine's basis add flashing warning light 307 through connecting pipe 303 can, equipment cost is lower.
In one example, the base vertical rod 301 of the explosion warning device can be a cylinder with a mounting base, and can be a galvanized pipe. The masked alarm 302 is a standard road alarm commonly used in the existing traffic technology field. The flashing warning light 307 may be a warning light with a permanent magnet. The connecting pipe 303 is cylindrical and can extend into the stand vertical rod 301 or be sleeved on the stand vertical rod 301. In order to limit the connecting pipe 303, the flash warning device may further include a connecting pipe clip 304, wherein the connecting pipe clip 304 is a semi-arc shaped special body, and is used for limiting the connecting pipe 303 when the connecting pipe 303 extends into the base vertical rod 301 or when the connecting pipe 303 is sleeved on the base vertical rod 301. The stand vertical rod 301 and the connecting pipe 303 are provided with a wiring port 305 for passing through a connecting wire 308, and the wiring port 305 can be in a semi-circular pipe shape. The lamp base plate 306 may be circular in shape.
In an application scenario, after the connection tube 303, the connection tube clip 304, and the lamp base plate 306 are processed, the connection tube clip, and the lamp base plate are combined and welded into a whole, and the connection port 305 is obtained by cutting and polishing, and the connection line 308 of the flashing warning lamp 307 passes through the connection port 305 to be electrically connected. On the basis that the base vertical rod 301 and the shielding alarm are installed, the connecting wire 308 of the flashing alarm lamp 307 is electrically connected with the shielding alarm, and the flashing alarm lamp 307 and the lamp base plate 306 are installed in an adsorption mode. When the shielding alarm of the flashing alarm device is on (for example, when a red light is on), the flashing alarm lamp 307 flashes at the same time so as to perform all-dimensional alarm.
Based on the same inventive concept, the embodiment of the application also provides a crossing warning control method, and the method can be applied to the crossing warning system provided by the embodiment of the application. All the control contents in the method can be a control method that the crossing control cabinet automatically triggers and executes according to data collected on the crossing site, or a method that the crossing control cabinet controls each execution device according to a control instruction issued by the remote monitoring system 100.
As shown in fig. 5, the crossing warning control method includes steps S41-S47.
S41: a train-travel state of the target crossing is determined based on the plurality of vehicle detection sensors.
Wherein the plurality of vehicle detection sensors are deployed along the railway. The plurality of vehicle detection sensors comprise a first sensor, a second sensor and a third sensor, the first sensor and the second sensor are positioned on the same side of the target crossing, and the first sensor and the third sensor are respectively positioned on two sides of the target crossing. The train travel status of the targeted crossing may be determined by the order in which the various sensors are triggered.
S42: when the target train is determined to advance towards the target crossing, the crossing control cabinet controls the burst flash warning device to give an alarm prompt and start alarm timing.
Based on the alarm system, when the first sensor and the second sensor are sequentially triggered, the target train can be determined to move towards the target crossing. When the first sensor is triggered after the second sensor is triggered, it is determined that the target train is traveling away from the target crossing (i.e., away from the target crossing).
When the structure that sudden strain of a muscle warning device includes frame montant, shade formula alarm machine and the warning light that sudden strain of a muscle that explodes, and frame montant and the combination of shade formula alarm machine formed with the sudden strain of a muscle warning light is connected, explode the process that sudden strain of a muscle warning device carried out the suggestion through crossing switch board control, include: the rotary flashing of the flashing warning lamp is controlled by the crossing control cabinet, and the red lamp of the shielding type alarm machine is controlled to flash alternately. If the burst flashing warning device comprises the audio amplifier and the loudspeaker, when the situation that the target train moves towards the target crossing is determined, the loudspeaker on the burst flashing warning device can be controlled to emit warning sound through the crossing control cabinet.
One skilled in the art can set the alarm timing duration based on safety considerations.
S43: when the alarm timing is finished, the electronic guardrail is controlled to fall down, the electronic guardrail is detected in place, and when the electronic guardrail falls in place, the forenotice annunciator is controlled to be started to provide railway forenotice signals for the target train.
Based on the alarm system and the obstacle recognition system, when the burst warning device is in the alarm prompting state, S44 and S45 can be executed.
S44: when the explosion and flash warning device is in an alarm prompting state, the obstacle detection is carried out on the target road junction through the moving object detection device.
S45: when the burst flashing warning device is in an alarm prompting state, if the moving object detection device detects that moving objects exist in the obstacle detection area of the target crossing, the obstacle column is controlled to stretch out of the ground, and the signal transmitter is controlled to send out crossing abnormal information, so that the signal receiver arranged on the target train can receive the crossing abnormal information.
In an application scene, the crossing control cabinet can transmit data detected by the alarm system and the barrier recognition system to the remote monitoring system, and a worker can send a control instruction to the crossing control cabinet through an industrial personal computer of the remote monitoring system according to crossing monitoring images from all crossings received by the remote monitoring system and the data transmitted by the crossing control cabinet, so that the crossing control cabinet can control execution equipment in the alarm system and the barrier recognition system to act according to the corresponding control instruction. The execution equipment comprises an explosion and flash warning device, an electronic guardrail and barrier columns.
For the related content of the crossing warning system in the crossing warning control method, please refer to the crossing warning system part in the foregoing description, which is not repeated herein.
By the method, efficiency and safety can be considered, warning is carried out through cooperation among all devices/systems in the crossing warning system, linkage control and automatic execution can be achieved, processing efficiency can be improved compared with a distributed control mode, and management cost is reduced. When a remote centralized control mode is adopted, each operator can operate the equipment of 5 to 10 crossings according to the difference of the busyness degree of crossing operation, the labor productivity of railway crossing operation is improved, the labor cost of crossing management is reduced, the comprehensive efficiency of railway traveling operation is improved, and the method has good popularization value for the railway crossing management of factory and mining enterprises. In the method, double warning and protection can be realized through the cooperation and control between the alarm system and the barrier identification system, and the potential safety hazard of the crossing can be reduced.
Optionally, after S43, the method may further include steps S46-S47. S46-S47 may serve as a reset control step.
S46: and when the first wheel and the tail wheel of the target train are detected to trigger the third sensor, determining that the target train leaves the target crossing, delaying for a specified time, controlling the electronic guardrail to ascend, and detecting the electronic guardrail in place.
In practical applications, in order to confirm whether the tail wheel of the target train passes through the third sensor, the time difference and the number of times of triggering of each sensor can be combined to perform auxiliary confirmation (if the train normally travels, each sensor is triggered in a short time, and the triggering number is matched with the number of wheels), or the image detection or the radio frequency identification can be combined to perform auxiliary confirmation. For example, corresponding labels/tags may be respectively disposed on the first wheel and the last wheel of the train, and when the labels/tags of the corresponding wheels are detected, the sensor is considered to be triggered.
S47: and based on S46, controlling the burst flash warning device to close when the target train is determined to leave the target crossing and the electronic guardrail lifting rod is detected to be in place.
When the target train is determined to leave the target crossing and the electronic guardrail lifting rod is detected to be in place, the burst flashing warning device can be controlled to exit the alarm prompting state.
Wherein the railroad advance signal may be turned off or the display content of the advance signal altered when it is determined that the target train has left the target crossing.
The above-mentioned S46-S47 provides a linkage reset mode, when the target train is determined to leave the target crossing, the pre-alarm signal, the electronic guardrail and the burst flash warning device are controlled to reset in a set reset sequence.
In one example, two sets of sensors, C1, C2 and D1, D2, are used to identify the direction of train travel based on the various sensors shown in fig. 3 to determine whether the train is operating in the forward or reverse direction. When the alarm is performed in the forward operation and the alarm is not performed in the reverse operation (namely, when C1 is triggered firstly and then C2 is triggered or D1 is triggered firstly and then D2 is triggered, the alarm is started, and when C1 is triggered after C2 is triggered firstly or D2 is triggered and then D1 is triggered, the alarm is not performed). The 6 sensors are divided into an approach section Q1, a crossing section Q2, and an approach section Q3. When the wheel pair presses C1 and then presses C2 (or presses D1 and then passes D2), the crossing control relay falls, two burst flash warning devices of the target crossing start to give an alarm, and after 10 seconds, two electronic guardrails of the target crossing fall to seal the crossing. When the last wheel of the wheel passes through C3 (or D3) and determines that the whole train passes through a crossing section Q2, delaying for 10S, finishing the attraction of the crossing control relay after delaying, starting the rising of two electronic guardrails of a target crossing, and stopping the alarm of the explosion warning device after the lifting rod is in place.
To address some special cases, several alarm control processes in one example are provided below.
First, in the case where the train is stopped in the approaching section after entering the approaching section, or in the case where the train leaves the crossing in the reverse direction after entering the approaching section, when it is detected that the train enters the approaching section, the burst warning device is controlled to give an alarm and the electronic guardrail falls down to close the crossing for 3 minutes (it does not take 3 minutes for the train traveling normally to pass the crossing). And after 3 minutes, carrying out reset control, controlling the electronic guardrail to ascend, controlling the flashing warning device to stop alarming, and restoring the warning system and the obstacle identification system.
After restoration, if the train leaves in reverse, no alarm will be given. And if the train continues to move forward from an approaching section under the condition that the moving direction of the train is not changed, the wheels can press the third sensor, the crossing control relay falls down to control the explosion and flash warning device to start alarming, and after 10 seconds (or shorter time), the electronic guardrail falls down to seal the crossing. After the last wheel pair of the train passes through the third sensor, delaying for 10 seconds, controlling the relay to attract at the crossing after the delay is finished, controlling the electronic guardrail to start to rise, and controlling the explosion warning device to stop alarming after the rising pole is detected to be in place.
And secondly, aiming at the condition that the train stops at the target crossing after entering the crossing section, under the condition, the alarm can be ready to be finished as long as the train is not started, so that the electronic guardrail can wait for 10 seconds when the train stops, the electronic guardrail is controlled to ascend, and the explosion warning device is controlled to stop giving the alarm after the lifting rod is in place. This situation can be combined with remote confirmation to see if the train is about to start (the crossing warning system will receive the vehicle start signal when the train is about to start).
And thirdly, aiming at the condition that the train is restarted after being stopped at the crossing section, if the crossing warning system receives a vehicle starting signal and detects that any wheel of the train presses the third sensor, the crossing control relay falls down to control the burst flash warning device to start alarming, and after 10 seconds, the electronic guardrail falls down to seal the crossing. When the train passes through the crossing, the last wheel pair passes through the third sensor (C3 or D3), the delay is 10 seconds. After 10 seconds, the channel port controls the relay to be attracted, the electronic guardrail is controlled to start to ascend, and after the lifting rod is detected to be in place, the burst flashing warning device is controlled to stop alarming.
In summary, the crossing warning system and the crossing warning control method provided by the embodiment of the application can not only improve the management efficiency of the crossing, but also reduce the potential safety hazard of the crossing, and can take efficiency and safety into consideration.
In the embodiments provided in the present application, the above-described embodiments are only illustrative, and there may be other division ways in actual implementation, for example, a plurality of devices or components may be combined or may be integrated into another system. In addition, the connections discussed above may be indirect couplings or communication connections between devices or apparatuses through some communication interfaces, and may be electrical, mechanical or other forms. In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. A person skilled in the art can select some or all of the units according to actual needs to achieve the purpose of the solution of the present embodiment.
As used herein, the terms "upper," "lower," "left," "right," and the like refer to orientations or positional relationships that are based on the orientation or positional relationship shown in the drawings, or that are conventionally positioned when in use, for convenience in describing the present application and to simplify description, rather than to indicate or imply that the referenced device must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above embodiments are merely examples of the present application and are not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. The crossing warning system is characterized by comprising a remote monitoring system and a plurality of field monitoring systems in communication connection with the remote monitoring system, wherein each field monitoring system comprises a crossing control cabinet, a network camera, an alarm system and an obstacle identification system;
the crossing control cabinet and the network camera are both connected with the remote monitoring system, and the alarm system and the barrier identification system are both connected with the crossing control cabinet;
the alarm system comprises an explosion flash warning device, a forenotice annunciator, an electronic guardrail and a plurality of vehicle detection sensors;
the remote monitoring system is used for displaying the monitoring image transmitted by the network camera and is also used for issuing a control instruction to the crossing control cabinet deployed at the target crossing;
the alarm system is used for determining the train running state of the target crossing according to the plurality of vehicle detection sensors;
the crossing control cabinet is used for controlling the burst flashing warning device, the advance warning signal machine and the electronic guardrail to carry out warning work according to a set execution sequence according to a train advancing state and/or a control instruction issued by the remote monitoring system;
and the barrier identification system is used for detecting the barrier when the explosion and flash warning device is in an alarm prompt state.
2. The crossing warning system of claim 1, wherein the obstacle identification system comprises an obstacle post, a signal emitter, and a moving object detection device;
the barrier column, the signal transmitter and the moving object detection device are all connected with the crossing control cabinet;
the crossing control cabinet is also used for controlling the barrier posts to extend out of the ground when the moving object detection device detects the moving object and controlling the signal transmitter to send crossing abnormal information so that a signal receiver arranged on a target train can receive the crossing abnormal information and carry out emergency braking according to the received crossing abnormal information.
3. The crossing warning system according to claim 1, wherein the flashing warning device comprises a stand vertical rod, a shade alarm, a flashing warning lamp, a connecting pipe, a connecting wire and a lamp base plate;
the stand vertical rod is fixedly connected with the shade type alarm machine;
one end of the connecting pipe is connected with the stand vertical rod, the other end of the connecting pipe is connected with the lamp base plate, and the lamp base plate is used for bearing the explosion warning lamp;
the explosion flash warning lamp is electrically connected with the shade type alarm machine through the connecting wire.
4. The crossing warning system according to claim 3, wherein the flashing warning light is connected with the lamp base plate in an absorption manner.
5. The crossing warning system of claim 3, wherein an audio amplifier is provided on the flashing warning device.
6. The crossing warning system of claim 1, wherein the plurality of vehicle detection sensors in the warning system comprises a first sensor, a second sensor, a third sensor;
the first sensor and the second sensor are positioned on the same side of the target crossing;
the first sensor and the third sensor are respectively positioned at two sides of the target crossing;
wherein the train traveling direction is determined according to the triggered time of each of the plurality of vehicle detection sensors.
7. The crossing warning system of claim 6, wherein the distance between the installation location of the first sensor and the target crossing is in a range of 150 meters to 300 meters, and the distance between the installation location of the second sensor and the target crossing is in a range of 150 meters to 300 meters.
8. The crossing warning system according to claim 1, wherein the remote monitoring system comprises a rack-mounted photoelectric converter, a network switch, an industrial personal computer, a network video recorder and a monitor;
the monitor is connected with the network switch through the network hard disk video recorder;
the industrial personal computer is connected with the network switch;
the network switch is connected with the rack-type photoelectric converter;
the rack-mounted photoelectric converter is used for performing data interaction with the plurality of field monitoring systems through a single-mode optical fiber network;
the monitor is used for displaying monitoring images acquired by the network cameras in the plurality of on-site monitoring systems;
the industrial personal computer is used for carrying out data interaction with the crossing control cabinets in the plurality of field monitoring systems.
9. A crossing warning control method applied to the crossing warning system according to any one of claims 1 to 8, the method comprising:
determining a train advancing state of the target crossing according to the plurality of vehicle detection sensors;
when the situation that a target train advances towards the target crossing is determined, the crossing control cabinet controls the burst flash warning device to give an alarm prompt and starts alarm timing;
when the alarm timing is finished, controlling the electronic guardrail to fall down, carrying out in-place detection on the electronic guardrail, and when the falling rod of the electronic guardrail is detected to be in place, controlling the forecast annunciator to be started so as to provide a railway forecast signal for the target train;
when the burst flashing warning device is in an alarm prompting state, if a moving object detection device in the obstacle identification system detects that a moving object exists in an obstacle detection area of the target crossing, the obstacle column in the obstacle identification system is controlled to extend out of the ground, and a signal transmitter in the obstacle identification system is controlled to send crossing abnormal information, so that a signal receiver arranged on the target train can receive the crossing abnormal information.
10. The method of claim 9, wherein the plurality of vehicle detection sensors in the warning system includes a first sensor, a second sensor, and a third sensor, the first sensor and the second sensor being located on a same side of the targeted crossing, the first sensor and the third sensor being located on respective sides of the targeted crossing, the method further comprising:
when the fact that the first wheel and the tail wheel of the target train trigger the third sensor is detected, the fact that the target train leaves the target crossing is determined, after time delay of a specified time length is carried out, the electronic guardrail is controlled to ascend, and in-place detection is carried out on the electronic guardrail;
and when the target train is determined to leave the target crossing and the electronic guardrail lifting rod is detected to be in place, controlling the burst flashing warning device to be closed.
11. The method of claim 9, wherein the flashing warning device comprises: frame montant, shade formula alarm machine and explode and dodge the warning light, the frame montant with the structure that the combination of shade formula alarm machine formed with explode and dodge the warning light and connect, through crossing switch board control explode and dodge warning device and report to the police the suggestion, include:
through crossing switch board control the rotatory scintillation of sudden strain of a muscle warning light, and control the red light of shade formula alarm machine carries out scintillation in turn.
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| CN202010623713.9A CN111717241A (en) | 2020-06-30 | 2020-06-30 | Crossing warning system and crossing warning control method |
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| CN202010623713.9A CN111717241A (en) | 2020-06-30 | 2020-06-30 | Crossing warning system and crossing warning control method |
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| CN114506368A (en) * | 2022-01-13 | 2022-05-17 | 武汉钢铁有限公司 | Railway crossing supervision system |
| CN115158413A (en) * | 2022-06-24 | 2022-10-11 | 哈尔滨深楠智能科技有限公司 | Railway crossing fence management control method and system |
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Application publication date: 20200929 |