CN102001346A - Apparatus for detecting railway foreign intrusion - Google Patents
Apparatus for detecting railway foreign intrusion Download PDFInfo
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- CN102001346A CN102001346A CN 201010504665 CN201010504665A CN102001346A CN 102001346 A CN102001346 A CN 102001346A CN 201010504665 CN201010504665 CN 201010504665 CN 201010504665 A CN201010504665 A CN 201010504665A CN 102001346 A CN102001346 A CN 102001346A
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Abstract
The invention discloses an apparatus for detecting railway foreign matter intrusion, comprising a primary radar apparatus, a spare radar apparatus, an on-site controller and a monitoring unit, wherein the primary radar apparatus and the spare radar apparatus are oppositely arranged at both sides of the detected railway; the on-site controller is respectively connected with the primary radar apparatus and the spare radar apparatus, and is disposed inside the primary radar apparatus; the monitoring unit is connected with the on-site controller via a communication cable; and the primary radar apparatus, the spare radar apparatus and the monitoring unit are connected so as to transmit a data signal. The apparatus can increase the monitoring reliability to meet the high reliability requirement of the railway, and can enhance the precision of remote monitoring, so that the monitoring is more flexible; the radar apparatus can be flexibly installed without the limit of terrains and the like; the monitoring distance is long; and the alarm response speed is higher and can be reported more promptly. The apparatus has the function of inquiring and setting the on-site radar apparatus without continuously watching the monitoring interface by people, and also has the function of monitoring moving objects in real time and alarming in advance.
Description
Technical field
What the present invention relates to is a kind of detector of railway foreign body, in particular a kind of device that is used for the detecting railway foreign body intrusion.
Background technology
Also do not have a kind of actv. means to realize public affairs are striden the foreign body intrusion monitoring in metal bridge and public iron parallel (contain and be lower than in the railway 1.5) zone at present, some place, monitoring point uses two power network monitoring technology.This technology is laid two and is thoroughly done away with the edge lead on grille guard, as long as the grid of cross-sectional plane greater than two electrical networks arranged, quality drops on the grille guard greater than the foreign matter of the ability to bear of electrical network lead, will cut off lead and produce alarm message.
But, mainly there is following problem in two power network monitoring technology: the first, the ability to bear of grid cross-sectional plane and electrical network lead there is certain requirement, when foreign matter weight during less than the ability to bear of electrical network lead, electrical network can not be pressed down, and therefore can not produce alarm message.In addition, can't upload by monitoring information for the accumulation of junk on grille guard.After electrical network is pressed down, need to change again to safeguard, can increase quantities; The second, can't report some real-time parameters of invading in the limit process, carry out real-time location tracking to invading the limit foreign matter, also can't judge the volume size of foreign matter; The 3rd since need be on bridge, roadbed erecting stage equipment, therefore also need in design process, carry out the cooperation work with relevant specialities such as bridge and roadbeds, carry out Infrastructure and reserve; The 4th, self there is certain potential safety hazard in the metal electrical network, and arranged certain service life, therefore, may work the mischief to railway operation safety in case damage.
Also have a small amount of monitoring point to use the intelligent image recognition technology in addition, the anti-foreign matter monitoring fielded system of this technology is made of video server, pick up camera, video transmission equipment etc., can gather the monitored on-the-spot graphicinformations such as foreign body intrusion that take place in real time, and carry out the intelligent image analysis at the scene, in case produce alarm message then the graphicinformation and the result at scene is uploaded to the security monitoring unit of taking precautions against natural calamities that closes on.But the video monitoring is subjected to factor affecting such as amblent air temperature easily, can't accomplish all-weather.The data that video monitoring often need be arrived by image recognition technology analyzing and processing collection in worksite, cost is higher.
Radar installation is flexible for installation, is not subjected to restrictions such as landform, and monitoring distance is far away, the radar beam wide coverage; The precision height, the above object of diameter 0.1m can monitor; Radar monitoring is not subjected to the influence of daytime, night and mist, Yun Heyu, and certain penetrating capacity is arranged, but all-weather service.The Radar Technology use also is not seen in report in railway foreign body infringement detection.
Summary of the invention
Goal of the invention: the objective of the invention is to overcome the deficiencies in the prior art, a kind of device that is used for the detecting railway foreign body intrusion is provided, adopt the radar ranging velocity measuring technique, realization is to the real-time monitoring of the Position And Velocity of moving target in the monitoring range, in conjunction with the monitoring on-site actual situations, analysis and judgement is invaded the place that limit forms, time, issue is invaded the limit early warning information and is uploaded to the upper class monitoring unit, based on supervision to mobile object in the monitoring range, other parameter is auxilliary, avoid the intricate reasoning computing as far as possible, will invade limit prediction and alarm function and be advanced to scene or remote monitor and control unit.
Technical scheme: the present invention is achieved by the following technical solutions, the present invention includes the main radar device, be equipped with radar installation, field controller and monitoring unit, wherein: the main radar device be equipped with the relative both sides of being located at tested railway of radar installation, field controller respectively with the main radar device be equipped with radar installation and link to each other, field controller is located at the inside of main radar device, monitoring unit links to each other by communication cable with field controller, the main radar device be equipped with radar installation and link to each other with transmission of data signals with monitoring unit.
Described main radar device comprises main radar, main power source and main swinging strut, and wherein: main power source links to each other with main radar, and main radar is located on the main swinging strut, and main radar links to each other with monitoring unit with field controller respectively;
Being equipped with radar installation comprises fully radar, stand by power source and is equipped with swinging strut, wherein: stand by power source be equipped with radar and link to each other, radar is located at and is equipped with on the swinging strut fully, being equipped with radar links to each other with monitoring unit with field controller respectively, two radars reach the purpose of redundancy backup, and two radars all possess and test the speed and distance measurement function, and information gathers to field controller carries out data handing, also can realize location positioning, further improve the accuracy that foreign body intrusion is reported to the police the junk drop point.
Described swinging strut comprises manual The Cloud Terrace and base support, can adjust the angular relationship between radar beam direction of illumination and road bridge and the rail.
Described main radar is identical with the central frequency that is equipped with radar.
Described field controller and main radar are connected by communication cable realizes control and data transmission, described field controller and fully radar be connected by signal cable.
Described field controller comprises handover module, acquisition module, sending module and control module, wherein: acquisition module respectively with main radar be equipped with radar and link to each other to accept environmental background information and real time information, control module links to each other with transmission of control signals with handover module, acquisition module and sending module respectively, handover module respectively with main radar be equipped with radar and link to each other with the transmission switching signal, sending module links to each other with monitoring unit with output displacement alarm message and final summary information.
When the present invention works, stride metal bridge one side symmetry in public affairs and set up two radar installations (main is equipped with), increased the redundancy backup function, active and standby radar all has the function of transmitting and receiving, there is a field controller main radar inside, is used for controlling the transmission that is equipped with radar radio frequency transmit and receive function and data message.Under the normal circumstances, main radar is transmitting radar waves both, and receiving radar ripple again, stand-by radar are only done to receive and used.When main radar emission appearance is unusual, enable the emission function of radar fully.The data that two radars collect gather to field controller, controller is by data analysis, can judge the direction of mobile, particularly in the differentiation of horizontal motion and perpendicular movement direction, can realize location positioning to the junk drop point, help further to improve the accuracy that foreign body intrusion is reported to the police, improved system reliability.
In monitoring foreign body intrusion process, need to measure the speed of foreign matter and drop point distance (being the foreign matter location information) apart from railway roadbed.The range finding that the location then needs to stride two radar installations that the metal bridge homonymy sets up by public affairs is finished jointly.Range finding will accurately be measured echo with respect to the delay that transmits exactly.At first active and standby radar will guarantee that central frequency is identical, and the radar wave (millimeter wave) of main radar emission certain frequency is equipped with the radar wave that radar receives the main radar emission, carries out analyzing and processing, draws range information and is sent to main radar in-to-in field controller; Because emissive porwer is bigger, main radar also receives the radar wave that reflects simultaneously, draws range information.After the two-way range information gathered, field controller utilized the high speed data processing unit to finish determining the foreign matter location information.According to the difference of radar emission signal, measure and to adopt impulse method, frequency method, phase method usually delay time.Foreign body intrusion monitoring radar adopts the range finding of frequency modulation method.Because the Doppler frequency shift of target echo is directly proportional with its radial velocity, the measurement of velocity to moving target can be determined by Doppler frequency shift.
In addition, monitoring device can also be analyzed falling in the monitoring range information such as reflection strength of foreign matter, draws the estimated valve of its volume size.By the estimation of volume, can be for determining that further invading the limit grade provides more accurate information.
Beneficial effect: first, monitoring reliability improves, satisfy the high reliability request of railway, the present invention is mainly used in highway and strides place, railway bridge monitoring point, two radar installations that utilize the rail bilateral symmetry to set up not only can be realized the redundancy backup of monitoring equipment, reduce the influence that breakdown of equipment causes monitoring, improve the safe reliability of monitoring, and can realize location positioning the foreign matter drop point;
The second, improved the remote monitoring precision, to monitor more flexibly, radar installation is flexible for installation, is not subjected to restrictions such as landform, and monitoring distance is far away, the radar beam wide coverage; The precision height, the above object of diameter 0.1m can monitor; Radar monitoring is not subjected to the influence of daytime, night and mist, Yun Heyu, and certain penetrating capacity is arranged, but all-weather service;
The 3rd, alarm response speed is faster, it is more timely to report.In case find to have foreign body intrusion alarm in time, alert reaction time reaches Millisecond;
The 4th, possess the function of on-the-spot radar installation being inquired about setting, need not manually monitoring interface to be carried out uninterruptedly on duty, when having foreign body intrusion to take place, device can automatic report and alarm information to monitoring unit, and send the acousto-optic alarm.Can start the picture control device, the auxiliary monitoring of realtime graphic is carried out at the scene, guarantee that alarm message is reliable.In addition, can realize information inquiry and parameter setting by remote inquiry and controllable function to on-the-spot radar installation;
The 5th, have moving-target monitoring in real time and warning function in advance, the present invention is by the powerful processing capacity of controller, monitors in real time falling into around the rail in the certain limit sense of motion, the kinematic velocity of foreign matter.According to the real time information of monitoring, analyze the possibility of invading limit, can report to the police in advance, the disaster that may cause is reduced to minimum.In addition, can accomplish location positioning to the foreign matter drop point.Can also estimate the size of foreign matter according to reflection strength, judge whether train is constituted harm, think for safe railway operation provides accurate more alarm signal.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is a work scheme drawing of the present invention;
Fig. 3 is a workflow diagram of the present invention.
The specific embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises main radar device 1, is equipped with radar installation 2, field controller 3 and monitoring unit 4, wherein: main radar device 1 be equipped with the radar installation 2 relative both sides of being located at tested rail 13, field controller 3 respectively with main radar device 1 be equipped with radar installation 2 and link to each other, field controller 3 is located at the inside of main radar device 1, monitoring unit 4 links to each other by communication cable 11 with field controller 3, main radar device 1 be equipped with radar installation 2 and link to each other with transmission of data signals with monitoring unit 4.
Described main radar device 1 comprises main radar 5, main power source 6 and main swinging strut 7, and wherein: main power source 6 links to each other with main radar 5, and main radar 5 is located on the main swinging strut 7, and main radar 5 links to each other with monitoring unit 4 with field controller 3 respectively;
Being equipped with radar installation 2 comprises fully radar 8, stand by power source 9 and is equipped with swinging strut 10, wherein: stand by power source 9 be equipped with radar 8 and link to each other, radar 8 is located at and is equipped with on the swinging strut 10 fully, being equipped with radar 8 links to each other with monitoring unit 4 with field controller 3 respectively, two radars reach the purpose of redundancy backup, and two radars all possess and test the speed and distance measurement function, and information gathers to field controller 3 carries out data handing, also can realize location positioning, further improve the accuracy that foreign body intrusion is reported to the police the junk drop point.
Described swinging strut comprises manual The Cloud Terrace and base support, can adjust the angular relationship between radar beam direction of illumination and road bridge and the rail 13.
Described main radar 5 is identical with the central frequency that is equipped with radar 8.
Described field controller 3 and main radar 5 are connected by RS485 realizes control and data transmission, described field controller 3 and fully radar 8 be connected by signal cable 12.
Described main power source 6 is provided with five tunnel different voltage outputs with stand by power source 9, and power supply links to each other with radar by ten core aviation plug interfaces, to heighten the safe and reliable of power supply.
Described field controller 3 comprises handover module, acquisition module, sending module and control module, wherein: acquisition module respectively with main radar 5 be equipped with radar 8 and link to each other to accept environmental background information and real time information, control module links to each other with transmission of control signals with handover module, acquisition module and sending module respectively, handover module respectively with main radar 5 be equipped with radar 8 and link to each other with the transmission switching signal, sending module links to each other with monitoring unit 4 with output displacement alarm message and final summary information.
As shown in Figure 2, stride metal bridge one side symmetry in public affairs and set up two radar installations (main is equipped with), increased the redundancy backup function.Active and standby radar 8 all has the function of transmitting and receiving, and there is a field controller 3 main radar 5 inside, is used for controlling the transmission that is equipped with radar 8 radio frequency transmit and receive functions and data message.Under the normal circumstances, main radar 5 is transmitting radar waves both, and receiving radar ripple again, stand-by radar are only done to receive and used.When main radar 5 emission appearance are unusual, enable the emission function of radar 8 fully.The data that two radars collect gather to field controller 3, controller is by data analysis, can judge the direction of mobile, particularly in the differentiation of horizontal motion and perpendicular movement direction, can realize location positioning to the junk drop point, help further to improve the accuracy that foreign body intrusion is reported to the police, improved system reliability.
As shown in Figure 3, in monitoring foreign body intrusion process, need to measure the speed of foreign matter and drop point distance (being the foreign matter location information) apart from railway roadbed.The range finding that the location then needs to stride two radar installations that the metal bridge homonymy sets up by public affairs is finished jointly.Range finding will accurately be measured echo with respect to the delay that transmits exactly.At first active and standby radar 8 will guarantee that central frequency is identical, and the radar wave (millimeter wave) of main radar 5 emission certain frequencies is equipped with the radar wave that radar 8 receives main radar 5 emissions, carries out analyzing and processing, draws range information and is sent to main radar 5 in-to-in field controllers 3; Because emissive porwer is bigger, main radar 5 also receives the radar wave that reflects simultaneously, draws range information.After the two-way range information gathered, field controller 3 utilized the high speed data processing unit to finish determining the foreign matter location information.According to the difference of radar emission signal, measure and to adopt impulse method, frequency method, phase method usually delay time.Foreign body intrusion monitoring radar adopts the range finding of frequency modulation method.Because the Doppler frequency shift of target echo is directly proportional with its radial velocity, the measurement of velocity to moving target can be determined by Doppler frequency shift.
In addition, monitoring device can also be analyzed falling in the monitoring range information such as reflection strength of foreign matter, draws the estimated valve of its volume size.By the estimation of volume, can be for determining that further invading the limit grade provides more accurate information.
The outstanding advantage of present embodiment design is the raising of monitoring accuracy and reliability aspect.Utilize the redundancy backup of monitoring equipment, be equivalent to reduce equipment failure rate, satisfy the high reliability request of railway.In addition, can determine sense of motion, the kinematic velocity of foreign matter in the monitoring range, the foreign matter drop point is carried out location positioning, estimate the size of foreign matter, make monitoring more accurate.Have characteristics such as investigative range is wide, speed of response is fast, can guarantee railway operation safety.Radar monitoring is not subjected to the influence of daytime, night and mist, Yun Heyu, and certain penetrating capacity is arranged, and monitoring has characteristics round-the-clock, round-the-clock.
Monitoring mode belongs to contactless monitoring, therefore is different from the monitoring method of reporting to the police and influenced by junk weight in the contact monitoring.After foreign body intrusion took place, radar detection apparatus was not fragile, can reduce maintenance cost.
Technological design is reasonable, inside is that modular construction, surface structure are succinctly attractive in appearance, manufactures normalisation, and is easy for operation.Generally be installed in the railway highway section along the line of easy generation foreign body intrusion, connection cable is laid simple, and project installation is easy to maintenance.Especially reduce the quantities that electrical network is installed on highway bridge, alleviated the reservation work capacity of bridge design initial stage related facility.Environmental protection, can not have any impact to environment etc.
Claims (6)
1. device that is used for the detecting railway foreign body intrusion, it is characterized in that: comprise main radar device (1), be equipped with radar installation (2), field controller (3) and monitoring unit (4), wherein: main radar device (1) be equipped with the relative both sides of being located at tested railway of radar installation (2), field controller (3) respectively with main radar device (1) be equipped with radar installation (2) and link to each other, field controller (3) is located at the inside of main radar device (1), monitoring unit (4) links to each other by communication cable (11) with field controller (3), main radar device (1) be equipped with radar installation (2) and link to each other with transmission of data signals with monitoring unit (4).
2. the device that is used for the detecting railway foreign body intrusion according to claim 1, it is characterized in that: described main radar device (1) comprises main radar (5), main power source (6) and main swinging strut (7), wherein: main power source (6) links to each other with main radar (5), main radar (5) is located on the main swinging strut (7), and main radar (5) links to each other with monitoring unit (4) with field controller (3) respectively;
Be equipped with radar installation (2) and comprise fully radar (8), stand by power source (9) and swinging strut (10) fully, wherein: stand by power source (9) be equipped with radar (8) and link to each other, radar (8) is located at and is equipped with on the swinging strut (10) fully, is equipped with radar (8) and links to each other with monitoring unit (4) with field controller (3) respectively.
3. the device that is used for the detecting railway foreign body intrusion according to claim 1 is characterized in that: described main radar (5) is identical with the central frequency that is equipped with radar (8).
4. the device that is used for the detecting railway foreign body intrusion according to claim 2 is characterized in that: described field controller (3) is connected by communication cable with main radar (5).
5. the device that is used for the detecting railway foreign body intrusion according to claim 2 is characterized in that: described field controller (3) be equipped with radar (8) and be connected by signal cable (12).
6. the device that is used for the detecting railway foreign body intrusion according to claim 2, it is characterized in that: described field controller (3) comprises handover module, acquisition module, sending module and control module, wherein: acquisition module respectively with main radar (5) be equipped with radar (8) and link to each other to accept environmental background information and real time information, control module respectively with handover module, acquisition module links to each other with transmission of control signals with sending module, handover module respectively with main radar (5) be equipped with radar (8) and link to each other with the transmission switching signal, sending module links to each other with monitoring unit (4) with output displacement alarm message and final summary information.
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| CN102360082A (en) * | 2010-10-18 | 2012-02-22 | 航天科工深圳（集团）有限公司 | Monitoring system for power transmission line |
| CN104020467A (en) * | 2014-06-18 | 2014-09-03 | 国家电网公司 | Tracking and detecting device and method for invading foreign substances of power transmission line |
| CN106050309A (en) * | 2016-08-09 | 2016-10-26 | 北京铁路局北京科学技术研究所 | Monitoring and alarming system and method for falling object in tunnel |
| CN107618535A (en) * | 2017-09-28 | 2018-01-23 | 李春莲 | Rail safety maintenance platform |
| CN107697102A (en) * | 2017-09-01 | 2018-02-16 | 南京理工大学 | Information gathering, identification and the caution system of high-speed railway foreign body intrusion |
| WO2018059141A1 (en) * | 2016-09-27 | 2018-04-05 | 上海无线电设备研究所 | Early-warning radar system for preventing rail transit vehicle collision |
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