CN107664761A - A kind of ultra wide band train operating safety prevention and control system - Google Patents
A kind of ultra wide band train operating safety prevention and control system Download PDFInfo
- Publication number
- CN107664761A CN107664761A CN201711052731.0A CN201711052731A CN107664761A CN 107664761 A CN107664761 A CN 107664761A CN 201711052731 A CN201711052731 A CN 201711052731A CN 107664761 A CN107664761 A CN 107664761A
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- CN
- China
- Prior art keywords
- module
- output end
- input
- frequency
- frequency mixer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9328—Rail vehicles
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a kind of ultra wide band train operating safety prevention and control system, including radar system, information process unit, velocity-measuring system and warning system, the radar system includes waveform generator, frequency synthesizing module, transmitter module, Anneta module, receiving module and signal processing module, the frequency synthesizing module includes the first power splitter, DAC and frequency mixer, the input of first power splitter and DAC electrically connects with the output end of waveform generator, and the input of the output end of first power splitter and DAC with the frequency mixer of frequency synthesizing module electrically connects；The transmitter module includes FM module and power amplifier module, the output end of the frequency mixer of the frequency synthesizing module electrically connects with the input of the FM module of transmitter module, and the output end of the FM module of the transmitter module electrically connects with the input of power amplifier.The security system of the present invention can be positioned in real time to train front obstacle, it is ensured that rail traffic vehicles are efficiently and safely run.
Description
Technical field
The present invention relates to train operating safety prevention and control systems technology field, more particularly to a kind of ultra wide band train operating safety
Prevention and control system.
Background technology
Its driving safety of the train of high-speed cruising is most important, due to natural environment cause landslide, landslide, bridge by
The situations such as the roadlock caused by damage or human factor have a strong impact on traffic safety.Early warning report is sent to the above situation, prevents weight
The generation important in inhibiting of major break down.Train prevention and control system is monitoring train operation road conditions, it is ensured that the conventional hand of train safety
Section.
Ultra wide band pulsed radar has range accuracy height, penetration capacity is strong, resolution capability is high, anti-stealth capability is good, power consumption
Low advantage.In recent years, based on ultra wide band pulsed radar technology for wall behind moving target carry out it is contactless into
Picture and tracking detection have become an important study hotspot.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is to propose a kind of ultra wide band train operating safety prevention and control system, train front obstacle can be carried out in real time to determine
Position, it is ensured that rail traffic vehicles are efficiently and safely run.
The technical scheme is that：
A kind of ultra wide band train operating safety prevention and control system, including radar system, information process unit, velocity-measuring system and alarm system
System, the radar system are included at waveform generator, frequency synthesizing module, transmitter module, Anneta module, receiving module and signal
Module is managed, the frequency synthesizing module includes the first power splitter, DAC and frequency mixer, the input of first power splitter and DAC
Electrically connected with the output end of waveform generator, the output end of first power splitter and DAC is mixed with frequency synthesizing module
The input electrical connection of frequency device；
The transmitter module includes FM module and power amplifier module, the output end of the frequency mixer of the frequency synthesizing module with
The input electrical connection of the FM module of transmitter module, the output end of the FM module of the transmitter module and power amplifier
Input electrically connects；
The Anneta module includes transmitting antenna, reception antenna and duplexer, and input and the power of the transmitting antenna are put
The output end electrical connection of big device, the reception antenna output end electrically connect with the input of duplexer；
The receiving module includes FM module, frequency mixer and the second power splitter, the input and frequency of second power splitter
Frequency mixer in integration module output end electrical connection, and the output end of the second power splitter with the FM module in receiving module
Electrically connected with the input of frequency mixer, the frequency mixer in the output end and receiving module of the FM module in the receiving module
Input electrically connects, and the input of the frequency mixer of the receiving module electrically connects with the output end of duplexer；
The signal processing module includes ADC and signal processor, the frequency mixer in the input and receiving module of the ADC
Output end electrically connects, and ADC output end electrically connects with the input of signal processor.
Preferably, first power splitter is one-to-two centimetre device.
Preferably, second power splitter is one point of four power splitter.
Preferably, the frequency modulation multiple of the FM module is 4 times.
Preferably, the number of the reception antenna and duplexer is 4.
The beneficial effects of the invention are as follows：Ultra wide band train operating safety prevention and control system of the present invention can be to train front obstacle
Positioned in real time, it is ensured that rail traffic vehicles are efficiently and safely run, and ranging, positioning, power consumption are carried out by radar system
Low, accuracy is high, send out narrow using width to receive, the technology such as the digital array antenna that switch switches, frequency step synthesized wideband signal come
Cost is reduced, train travelling process is monitored by way of velocity-measuring system Secondary RADAR System, and automatic system can be realized
It is dynamic.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
Apply example to be used to explain the present invention together, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of structural framing figure of ultra wide band train operating safety prevention and control system proposed by the present invention；
Fig. 2 is the design frame chart of radar system in a kind of ultra wide band train operating safety prevention and control system proposed by the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end
As element or with same or like function element.The embodiments described below with reference to the accompanying drawings are exemplary, purport
For explaining the present invention, and it is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that two or more,
Unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Reference picture 1-2, a kind of ultra wide band train operating safety prevention and control system, including radar system, information process unit, survey
Speed system and warning system, the radar system include waveform generator, frequency synthesizing module, transmitter module, Anneta module, connect
Module and signal processing module are received, the frequency synthesizing module includes the first power splitter, DAC and frequency mixer, first work(point
Output end of device and the DAC input with waveform generator electrically connects, the output end of first power splitter and DAC with frequency
The input electrical connection of the frequency mixer of rate integration module；
The transmitter module includes FM module and power amplifier module, the output end of the frequency mixer of the frequency synthesizing module with
The input electrical connection of the FM module of transmitter module, the output end of the FM module of the transmitter module and power amplifier
Input electrically connects；
The Anneta module includes transmitting antenna, reception antenna and duplexer, and input and the power of the transmitting antenna are put
The output end electrical connection of big device, the reception antenna output end electrically connect with the input of duplexer；
The receiving module includes FM module, frequency mixer and the second power splitter, the input and frequency of second power splitter
Frequency mixer in integration module output end electrical connection, and the output end of the second power splitter with the FM module in receiving module
Electrically connected with the input of frequency mixer, the frequency mixer in the output end and receiving module of the FM module in the receiving module
Input electrically connects, and the input of the frequency mixer of the receiving module electrically connects with the output end of duplexer；
The signal processing module includes ADC and signal processor, the frequency mixer in the input and receiving module of the ADC
Output end electrically connects, and ADC output end electrically connects with the input of signal processor.
First power splitter is one-to-two centimetre device.
Second power splitter is one point of four power splitter.
The frequency modulation multiple of the FM module is 4 times.
The number of the reception antenna and duplexer is 4.
Workflow：In radar system, 2 tunnels of frequency caused by waveform generator point reach frequency synthesizing module, produce two
Roadbed band CW with frequency modulation signal, transmitter module launch the frequency multiplication of band signal 4 after power amplification.Reception antenna uses 4
Road receiver receives the signal of No. 16 antennas by 4 duplexer timesharing, then with receiving local oscillator mixing, obtains intermediate-freuqncy signal,
The data after AD is gathered carry out Digital Signal Processing in next step, finally obtain the distance of target.Radar system obtain away from
From information transfer into information process unit, and the velocity information that binding test system measures, when distance not in safe distance and
During speed, control warning system sends alarm, and controls control system to be braked.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of ultra wide band train operating safety prevention and control system, including radar system, information process unit, velocity-measuring system and alarm
System, it is characterised in that：The radar system includes waveform generator, frequency synthesizing module, transmitter module, Anneta module, connect
Module and signal processing module are received, the frequency synthesizing module includes the first power splitter, DAC and frequency mixer, first work(point
Output end of device and the DAC input with waveform generator electrically connects, the output end of first power splitter and DAC with frequency
The input electrical connection of the frequency mixer of rate integration module；
The transmitter module includes FM module and power amplifier module, the output end of the frequency mixer of the frequency synthesizing module with
The input electrical connection of the FM module of transmitter module, the output end of the FM module of the transmitter module and power amplifier
Input electrically connects；
The Anneta module includes transmitting antenna, reception antenna and duplexer, and input and the power of the transmitting antenna are put
The output end electrical connection of big device, the reception antenna output end electrically connect with the input of duplexer；
The receiving module includes FM module, frequency mixer and the second power splitter, the input and frequency of second power splitter
Frequency mixer in integration module output end electrical connection, and the output end of the second power splitter with the FM module in receiving module
Electrically connected with the input of frequency mixer, the frequency mixer in the output end and receiving module of the FM module in the receiving module
Input electrically connects, and the input of the frequency mixer of the receiving module electrically connects with the output end of duplexer；
The signal processing module includes ADC and signal processor, the frequency mixer in the input and receiving module of the ADC
Output end electrically connects, and ADC output end electrically connects with the input of signal processor.
A kind of 2. ultra wide band train operating safety prevention and control system according to claim 1, it is characterised in that：First work(
It is one-to-two centimetre device to divide device.
A kind of 3. ultra wide band train operating safety prevention and control system according to claim 1, it is characterised in that：Second work(
It is one point of four power splitter to divide device.
A kind of 4. ultra wide band train operating safety prevention and control system according to claim 1, it is characterised in that：The frequency modulation mould
The frequency modulation multiple of block is 4 times.
A kind of 5. ultra wide band train operating safety prevention and control system according to claim 1, it is characterised in that：The reception day
The number of line and duplexer is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052731.0A CN107664761A (en) | 2017-10-30 | 2017-10-30 | A kind of ultra wide band train operating safety prevention and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711052731.0A CN107664761A (en) | 2017-10-30 | 2017-10-30 | A kind of ultra wide band train operating safety prevention and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107664761A true CN107664761A (en) | 2018-02-06 |
Family
ID=61143855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711052731.0A Withdrawn CN107664761A (en) | 2017-10-30 | 2017-10-30 | A kind of ultra wide band train operating safety prevention and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107664761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022087936A1 (en) * | 2020-10-29 | 2022-05-05 | 浙江吉利控股集团有限公司 | Positioning apparatus and method based on ultra wide band, and device and storage medium |
-
2017
- 2017-10-30 CN CN201711052731.0A patent/CN107664761A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022087936A1 (en) * | 2020-10-29 | 2022-05-05 | 浙江吉利控股集团有限公司 | Positioning apparatus and method based on ultra wide band, and device and storage medium |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190704 Address after: 213100 No. 128 Dongfang East Road, Wujin District, Changzhou City, Jiangsu Province Applicant after: Xinjiutong Technology (Changzhou) Co.,Ltd. Address before: 610000 Chengdu, Sichuan, China (Sichuan) free trade pilot area, Chengdu high tech Zone, No. 200, 4 floor, 200 Tianfu five street. Applicant before: CHENGDU 91R INTELLIGENT TECHNOLOGY CO.,LTD. |
|
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180206 |