CN109856626A - High-speed rail platform end based on microwave radar is anti-to pass through alarm system and method - Google Patents
High-speed rail platform end based on microwave radar is anti-to pass through alarm system and method Download PDFInfo
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- CN109856626A CN109856626A CN201811505453.4A CN201811505453A CN109856626A CN 109856626 A CN109856626 A CN 109856626A CN 201811505453 A CN201811505453 A CN 201811505453A CN 109856626 A CN109856626 A CN 109856626A
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Abstract
Prevent passing through alarm system, including middle control module, radar sensor, voice announcer, video recorder and warning lamp the invention discloses the high-speed rail platform end based on microwave radar；Radar sensor includes signal transmitter unit and signal receiving unit；Signal transmitter unit electromagnetic signals realize the monitoring to monitored target to barrier；Signal receiving unit is mixed received electromagnetic wave echo-signal and local oscillation signal to obtain echo frequency signal, echo frequency signal is extracted to obtain the distance of monitored target and echo power information, determines detected object type with the analysis of echo power information by adjusting the distance；Voice announcer issues corresponding alarm sound according to detected object type and is warned；The video information of video recorder acquisition monitored target；Warning lamp carries out light warning according to detected object type；The monitoring information of acquisition is shown to monitoring personnel to assist carrying out operating under line by middle control module.
Description
Technical field
The present invention relates to high-speed rail technical fields, and in particular to the high-speed rail platform end based on microwave radar is anti-to pass through alarm system
System and method.
Background technique
With the development of Chinese high-speed rail technology and universal, the effect of high-speed rail security protection is particularly important.High-speed rail security protection is main
It include: station and Along Railway security protection, compartment security protection and interior electronic security.Wherein compartment security protection and interior electronic security, by
In personnel are relatively fixed, space is smaller and has staff's inspection, therefore security protection work is relatively easy.Station and railway edge
Line security protection is since its personnel complex space of walking about is big, heavy workload, task weight.Main security protection means have fence,
Road monitoring, power failure system etc..Multiply staff there are some passengers not paying attention under high-speed rail end on high-speed railway rail,
It passes through high-speed railway rail and climbs over the walls and cover ticket behavior.Since the high-speed rail speed of service is exceedingly fast, pass through high-speed railway rail be possible to occur hiding it is too late
And the safety accident caused, cause extremely severe social influence.
High-speed rail platform end is anti-pass through alarm system be for preventing passenger from passing through high-speed rail railroad track by platform both ends,
Enclosure wall is crossed to steal a ride equal hazardous acts.
Traditional human body detection sensor includes: infrared sensor, ultrasonic sensor, laser sensor.Infrared sensing
Device realizes the detection to human body by abnormal temperature body in perception air, but since train temperature is different with environment temperature
It causes, therefore it is easy to appear wrong report situations；The ultrasonic wave of ultrasonic sensor transmitting is mechanical wave, and transmission range is limited, and
It is influenced by the sound wave in environment, and then causes to report by mistake；
Laser sensor is easy affected by environment therefore also less applicable since it has a short service life.Existing high-speed rail station is anti-
Passing through detection sensor is mostly infrared emission mode, is judged intermediate objective using two infrared sensors penetrating, this
Kind of sensor is need to be mounted so that on platform both sides, but high-speed rail platform has clearly stipulate that forbidding installing any set within white line
It is standby, therefore infrared emission sensor has disadvantage: there is blind area at platform both ends, and the person of passing through can be passed through by platform edge；Due to column
Overall height speed passes through, and equipment is mounted on white line position and has security risk；Set of system needs two spud piles, installation engineering
Amount is big；It is infrared to be easy to be influenced by weather, such as heavy rain, heavy snow, hail and smog；An only line for infrared emission detection, wears
More can easily jump detection line.
Summary of the invention
Prevent passing through alarm system and method the purpose of the present invention is to provide the high-speed rail platform end based on microwave radar, use
To solve the problems, such as whether existing monitoring system cannot have pedestrians travel to carry out effective monitoring and remind to high-speed rail platform end,
To reduce the accident passing through high-speed rail platform and causing.
To achieve the above object, the technical solution of the present invention is as follows:
High-speed rail platform end based on microwave radar is anti-to pass through alarm system, including middle control module, radar sensor, voice
Broadcast device, video recorder and warning lamp；The radar sensor includes signal transmitter unit and signal receiving unit；
The signal transmitter unit realizes the monitoring to monitored target for electromagnetic signals to barrier；
The signal receiving unit, for being mixed received electromagnetic wave echo-signal and local oscillation signal to obtain echo
Intermediate-freuqncy signal extracts the echo frequency signal to obtain the distance of monitored target and echo power information, and logical
It crosses to adjust the distance and determines detected object type with the analysis of echo power information；
The voice announcer is warned for issuing corresponding alarm sound according to detected object type；
The video recorder, for acquiring the video information of monitored target；
The warning lamp, for carrying out light warning according to detected object type；
The middle control module, for the monitoring information of acquisition to be shown to monitoring personnel to assist carrying out operating under line.
Preferably, the quantity of the radar sensor is more than or equal to 2.
Preferably, the signal transmitter unit includes voltage controlled oscillator VCO, phase-locked loop pll, reference clock and transmitting day
Line；
The voltage controlled oscillator VCO and the phase-locked loop pll constitute closed-loop system；
The closed-loop system controls the electromagnetic wave signal that the voltage controlled oscillator VCO exports certain modulation system.
Preferably, the electromagnetic wave signal is zigzag or triangular waveform；Formula is continued to use in the rising of the electromagnetic wave signal
It indicates are as follows:
Preferably, the signal receiving unit uses zero intermediate frequency reciver, and the zero intermediate frequency reciver utilizes microstrip antenna
Receives echo-signal.
Preferably, the echo-signal is:
Wherein,For echo-signal time delay；Receiver will emit signal as local oscillation signal and echo-signal into
Row mixing, obtains intermediate-freuqncy signal；v1(t)=cos [2 π f0td+2πtd·t·B/T-πKtd 2] (3)。
Preferably, it is analyzed according to the reflection coefficient of detected object and determines detected object type.
Preferably, intermediate-freuqncy signal delay high-order term π Kt is omitted in formula (3)d 2, the frequency for obtaining intermediate-freuqncy signal is td·B/
The frequency F of formula (3) is calculated by Fourier transformation (FFT) by T, calculates the estimation of distance R
Preferably, 220 volts of Alternating Current Power Supplies, solar energy or the storage battery power supply used.
High-speed rail platform end based on microwave radar is anti-to pass through alarm method, for the high-speed rail station based on microwave radar
End portion is anti-to pass through alarm system, which is characterized in that comprising steps of
Step 1: preventing passing through progress System self-test after alarm system is powered and test in the high-speed rail platform end based on microwave radar；
Step 2: if System self-test tests failure, alert prompt system failure；
Step 3: passing through if System self-test is tested, according to the reflected energy of the detected object detected and Distance Judgment thunder
Up to the type of the detected object in front；
Step 4: if detected object is high iron rule without alarm；If detecting pedestrians travel, the voice is broadcast
It reports device to issue information warning and reminds pedestrian；Video recorder record a video and sends the middle control module for the information of acquisition simultaneously；
Step 5: received monitoring information is shown to monitoring personnel in order to operate under line by the middle control module；
Step 6: after dangerous situation releasing, return step 4.
The present invention has the advantage that
(1) when the present invention can detecte pedestrian, without blind area, detection range is arrived at a station edge of table edge from radar antenna, detection away from
From adjustable；
(2) present invention can accurately distinguish train and human body target, the wrong report caused when train being avoided to pass through；
(3) present invention is not influenced using radar sensor by sound wave and acid, cigarette, mist, rain, snow, ice environment, may be implemented 24
Hour round-the-clock complex environment non-stop run；
(4) installation site of the present invention is convenient, flexible, can be used it is solar powered, therefore in any intersection section region
Mountable use；
(5) present invention can be with installation site among platform, without security risk, it is only necessary to a spud pile, work of constructing
Work amount is small；
(6) detections of radar range is a fan-shaped surface in the present invention, and the person of passing through has nowhere to run.
Detailed description of the invention
Fig. 1 is the anti-functional block diagram for passing through alarm system in the high-speed rail platform end based on microwave radar of invention.
Fig. 2 is the anti-flow chart for passing through alarm system in high-speed rail platform end in invention based on microwave radar.
Fig. 3 is embodiment schematic diagram.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
The high-speed rail platform end based on microwave radar of the present embodiment is anti-to pass through alarm system, includes middle control module, radar passes
Sensor, voice announcer, video recorder and warning lamp；The radar sensor includes signal transmitter unit and signal receiving unit；
The signal transmitter unit realizes the monitoring to monitored target for electromagnetic signals to barrier；
The signal receiving unit, for being mixed received electromagnetic wave echo-signal and local oscillation signal to obtain echo
Intermediate-freuqncy signal extracts the echo frequency signal to obtain the distance of monitored target and echo power information, and logical
It crosses to adjust the distance and determines detected object type with the analysis of echo power information；
The voice announcer is warned for issuing corresponding alarm sound according to detected object type；
The video recorder, for acquiring the video information of monitored target；
The warning lamp, for carrying out light warning according to detected object type；
The middle control module, for the monitoring information of acquisition to be shown to monitoring personnel to assist carrying out operating under line.
The quantity of the radar sensor is more than or equal to 2.
The signal transmitter unit includes voltage controlled oscillator VCO, phase-locked loop pll, reference clock and transmitting antenna；
The voltage controlled oscillator VCO and the phase-locked loop pll constitute closed-loop system；
The closed-loop system controls the electromagnetic wave signal that the voltage controlled oscillator VCO exports certain modulation system.
The electromagnetic wave signal is zigzag or triangular waveform；The rising edge of the electromagnetic wave signal is formulated are as follows:
Wherein vT(t) transmitting signal changes with time；π indicates pi, value 3.1415926；f0Indicate transmitting signal
Initial frequency, it is common but be not limited to 24GHz and 77GHz；B indicate transmitting signal bandwidth, bandwidth determine radar away from
High Resolution；T indicates the frequency sweep cycle of transmitting signal；Indicate the initial phase of transmitting signal.
The signal receiving unit uses zero intermediate frequency reciver, and the zero intermediate frequency reciver receives echo using microstrip antenna
Signal.
The echo-signal that radar receiver receives are as follows:
Wherein,For echo-signal time delay, the light velocity 3 × 10 is indicated8m/s.It is used as local oscillator to believe simultaneously transmitting signal
Number, it is mixed in receiver with local oscillation signal, obtains intermediate-freuqncy signal.
v1(t)=cos [2 π f0td+2πtd·t·B/T-πKtd 2] (3)
It is analyzed according to the reflection coefficient of detected object and determines detected object type.
Intermediate-freuqncy signal delay high-order term π Kt is omitted in formula (3)d 2, the frequency for obtaining intermediate-freuqncy signal is tdB/T passes through
The frequency F of formula (3) is calculated in Fourier transformation (FFT), calculates the estimation of distance R
Its 220 volts of Alternating Current Power Supplies, solar energy or storage battery power supply for using.
High-speed rail platform end based on microwave radar is anti-to pass through alarm method, for the high-speed rail station based on microwave radar
End portion is anti-to pass through alarm system, which is characterized in that comprising steps of
Step 1: preventing passing through progress System self-test after alarm system is powered and test in the high-speed rail platform end based on microwave radar；
Step 2: if System self-test tests failure, alert prompt system failure；
Step 3: passing through if System self-test is tested, according to the reflected energy of the detected object detected and Distance Judgment thunder
Up to the type of the detected object in front；
Step 4: if detected object is high iron rule without alarm；If detecting pedestrians travel, the voice is broadcast
It reports device to issue information warning and reminds pedestrian；Video recorder record a video and sends the middle control module for the information of acquisition simultaneously；
Step 5: received monitoring information is shown to monitoring personnel in order to operate under line by the middle control module；
Step 6: after dangerous situation releasing, return step 4.
According to detecting that target reflected energy and distance may determine that radar objects ahead is pedestrian or high-speed rail train, such as
Fruit is high-speed rail by then without alarm.It is not passed through if detecting pedestrians travel using voice broadcasting system warning pedestrian, and
Notice video recorder is recorded a video, while communicating information to middle control, and monitoring room personnel are that passenger passes through by monitoring information judgement
Or staff, passes through if it is passenger, needs that security is notified to alert it, or even arrests escort to relevant departments
Processing.According to different high-speed rail platform construction conditions, this system can use different power supply systems.For facilitating lead and having
The high-speed rail platform of standby 220 volts of alternating currents, can be used 220 volts of Alternating Current Power Supplies；When being inconvenient to power for certain high-speed rail stations, it can adopt
It is powered with the mode of solar energy plus battery to this system.
This system includes following core component: radar sensor, voice announcer, video recorder, warning lamp, channel radio
Believe equipment.
Microwave radar is installed on platform middle position.Mounting height suggestion is 0.4m~1m, and adjustable radar beam shines
Penetrate range；Warning lamp is installed on radar cabinet；Video recorder erection is mounted on platform end, and mounting height is 2m~3m, according to
Live video machine camera lens size adjusts mounting height；Voice broadcasting system can be installed in video recorder mounting post, can also be with
It is mounted on radar cabinet.
After installing radar sensor, voice announcer, video recorder, warning lamp, wireless telecom equipment, in whole system
System carries out self-test after electricity, checks whether functions are normal, if there is failure then notice personnel systems event at once
Barrier.Enter normal mode of operation by whole system after self-test.Using radar sensor, whether detection pedestrian is passed through, and utilizes radar
Transmitter emits a kind of electromagnetic wave signal of particular modulation, and electromagnetic wave encounters target back reflection and returns, and receiver receives echo
Be mixed to obtain echo frequency signal with local oscillation signal afterwards, by the extraction to useful information in intermediate-freuqncy signal it is available before
Square mesh target distance and echo power information may determine that front is that pedestrian goes back by the analysis to target range and echo power
It is that high-speed rail is passed through, if it is high-speed rail by then without alarm, utilizing voice broadcasting system to warn if detecting pedestrians travel
Pedestrian does not pass through, and notifies camera to record a video, while communicating information to middle control, and monitoring room personnel are judged by monitoring information
It is that passenger passes through or staff, is passed through if it is passenger, need that security is notified to alert it, or even arrest escort
It is handled to relevant departments.According to different high-speed rail platform construction situations, this system can use different power supply systems, can be used
220 volts of mains or solar powered scheme.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. the high-speed rail platform end based on microwave radar is anti-to pass through alarm system, which is characterized in that passed including middle control module, radar
Sensor, voice announcer, video recorder and warning lamp；The radar sensor includes signal transmitter unit and signal receiving unit；
The signal transmitter unit realizes the monitoring to monitored target for electromagnetic signals to barrier；
The signal receiving unit, for being mixed received electromagnetic wave echo-signal and local oscillation signal to obtain echo intermediate frequency
Signal extracts the echo frequency signal to obtain the distance of monitored target and echo power information, and by pair
The analysis of distance and echo power information determines detected object type；
The voice announcer is warned for issuing corresponding alarm sound according to detected object type；
The video recorder, for acquiring the video information of monitored target；
The warning lamp, for carrying out light warning according to detected object type；
The middle control module, for the monitoring information of acquisition to be shown to monitoring personnel to assist carrying out operating under line.
2. the high-speed rail platform end based on microwave radar is anti-according to claim 1 passes through alarm system, which is characterized in that institute
The quantity for stating radar sensor is more than or equal to 2.
3. the high-speed rail platform end based on microwave radar is anti-according to claim 2 passes through alarm system, which is characterized in that institute
Stating signal transmitter unit includes voltage controlled oscillator VCO, phase-locked loop pll, reference clock and transmitting antenna；
The voltage controlled oscillator VCO and the phase-locked loop pll constitute closed-loop system；
The closed-loop system controls the electromagnetic wave signal that the voltage controlled oscillator VCO exports certain modulation system.
4. the high-speed rail platform end based on microwave radar is anti-according to claim 3 passes through alarm system, which is characterized in that institute
Stating electromagnetic wave signal is zigzag or triangular waveform；The rising edge of the electromagnetic wave signal is formulated are as follows:
5. the high-speed rail platform end based on microwave radar is anti-according to claim 4 passes through alarm system, which is characterized in that institute
Signal receiving unit is stated using zero intermediate frequency reciver, the zero intermediate frequency reciver utilizes microstrip antenna receives echo-signal.
6. the high-speed rail platform end based on microwave radar is anti-according to claim 5 passes through alarm system, which is characterized in that institute
Stating echo-signal is:
Wherein,For echo-signal time delay；Receiver will emit signal as local oscillation signal and echo-signal and be mixed,
Obtain intermediate-freuqncy signal；v1(t)=cos [2 π f0td+2πtd·t·B/T-πKtd 2] (3)。
7. the high-speed rail platform end based on microwave radar is anti-according to claim 6 passes through alarm system, which is characterized in that its
It is analyzed according to the reflection coefficient of detected object and determines detected object type.
8. the high-speed rail platform end based on microwave radar is anti-according to claim 7 passes through alarm system, which is characterized in that
Intermediate-freuqncy signal delay high-order term π Kt is omitted in formula (3)d 2, the frequency for obtaining intermediate-freuqncy signal is tdB/T passes through Fourier transformation
(FFT) the frequency F of formula (3) is calculated, calculates the estimation of distance R
9. the high-speed rail platform end based on microwave radar is anti-according to claim 8 passes through alarm system, which is characterized in that its
220 volts of Alternating Current Power Supplies, solar energy or the storage battery power supply used.
10. the high-speed rail platform end based on microwave radar is anti-to pass through alarm method, for being based on microwave radar described in claim 9
High-speed rail platform end anti-pass through alarm system, which is characterized in that comprising steps of
Step 1: preventing passing through progress System self-test after alarm system is powered and test in the high-speed rail platform end based on microwave radar；
Step 2: if System self-test tests failure, alert prompt system failure；
Step 3: passing through if System self-test is tested, before the reflected energy of the detected object detected and Distance Judgment radar
The type of the detected object of side；
Step 4: if detected object is high iron rule without alarm；If detecting pedestrians travel, the voice announcer
It issues information warning and reminds pedestrian；Video recorder record a video and sends the middle control module for the information of acquisition simultaneously；
Step 5: received monitoring information is shown to monitoring personnel in order to operate under line by the middle control module；
Step 6: after dangerous situation releasing, return step 4.
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| CN110517465A (en) * | 2019-08-30 | 2019-11-29 | 成都智元汇信息技术股份有限公司 | A method of it prevents from non-Mag & Bag Area to safety check block transitive article |
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| CN112489337A (en) * | 2020-11-27 | 2021-03-12 | 深圳大学 | Roof safety monitoring method and monitor |
| CN112907891A (en) * | 2020-12-28 | 2021-06-04 | 中兴飞流信息科技有限公司 | Station laser line-crossing distance measurement detection method and system based on video AI |
| CN114283544A (en) * | 2021-12-10 | 2022-04-05 | 中国电子科技集团公司第三十八研究所 | Railway platform intrusion monitoring system and method based on artificial intelligence |
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Application publication date: 20190607 |