CN207389220U - Level crossing is wireless automatic early-warning device - Google Patents
Level crossing is wireless automatic early-warning device Download PDFInfo
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- CN207389220U CN207389220U CN201720958391.7U CN201720958391U CN207389220U CN 207389220 U CN207389220 U CN 207389220U CN 201720958391 U CN201720958391 U CN 201720958391U CN 207389220 U CN207389220 U CN 207389220U
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- child node
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- radio receiving
- receiving transmitting
- control system
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Abstract
The utility model is related to prior-warning device technical fields, particularly a kind of wireless automatic early-warning device in level crossing.Master controller is equipped in road junction road room, the master controller includes core control panel, radio receiving transmitting module A, voice module, display module, manual alarm switch, power supply A；Child node control system includes power supply B, processor, radio receiving transmitting module B and photoelectric coupling driver, passive wheel sensor；The master controller is communicated wirelessly and contacted by radio receiving transmitting module A and radio receiving transmitting module B with child node control system；Solve existing road room must Attended mode, the problem of otherwise can not providing automatic early-warning for motor vehicle and pedestrian, save manpower；For there is the road room of duty personnel, solve the disadvantages that intercom or mobile communication must be carried, it externally can not automatic prompt pre-warning signal.This automatic early-warning system has carried out unique low power dissipation design, it is ensured that still can be used normally under severe conditions.
Description
Technical field
The utility model is related to prior-warning device technical fields, particularly a kind of wireless automatic early-warning device in level crossing.
Background technology
Railway transportation is continuing to increase transport power to adapt to economic rapid development；Highway transportation simultaneously is also developing rapidly,
The intersection of railway and highway is more and more so that the motor vehicle and the safety problem of pedestrian passed through is particularly important.Railway road
Mouth is the hazardous location of the key link and road transport in safety of railway traffic production, it directly threatens traffic participation
The personal safety of person.Existing level crossing often lacks a train automatic early-warning system, such road junction there are the problem of：
1) lacking source of early warning, there are security risk, serious threat people production and living safety.
2) otherwise the necessary Attended mode in existing road room can not provide pre-warning signal for motor vehicle and pedestrian automatically, waste people
Power；
3) for there is the road room of duty personnel, it is necessary to carry intercom or mobile communication, can not realize automatic prompt early warning
Signal.
Easy, nonautomatic prior-warning device is equipped with for some road junctions, there are the following problems at such road junction：
1) using wired mode, equipment need to use mass communication cable, cost of installation and maintenance very high.
2) energy-saving design, electricity shortage are not used, and severe use environment is obviously shortened, seriously using battery-powered time
Influence operational safety.
3) prompt train indefinite to information；Vehicle joint number, Vehicle Speed are indefinite.
4) communication distance is short, and homogenous frequency signal serious interference exists and fails to report and report by mistake.
5) self-checking function is not set, it is unclear with the presence or absence of problem to equipment.
6) safeguard protection is not complete enough, influences service life of equipment.
7) a row time train exists repeats early warning twice.
8) case of emergency, without manual warning function.
9) without voice prompt, volume is unadjustable, influences resident living nearby.
Utility model content
For the utility model in order to solve the deficiencies in the prior art, the purpose of this utility model is a kind of level crossing
Wireless automatic early-warning device.
In order to achieve the above objectives, the utility model mainly provides following technical solution：
Including road junction road room, master controller, institute are equipped in road junction road room for a kind of wireless automatic early-warning device in level crossing
Stating master controller includes core control panel, radio receiving transmitting module A, voice module, display module, manual alarm switch and power supply A；
The voice module is connected with core control panel, and signal language is sent when receiving warning information for core control panel
Sound；
The display module is connected with core control panel, for showing information that core control panel receives；
The manual alarm switch is connected with core control panel, for controlling early warning sound manually；
The road junction Dao Fang both sides is each provided with a son along the train up-downlink direction 0.8-1.2km positions of train line
Node control system；
Child node control system includes power supply B, processor, radio receiving transmitting module B, photoelectric coupling driver and passive wheel
Sensor；
The master controller is carried out wireless with child node control system by radio receiving transmitting module A and radio receiving transmitting module B
Communication contact；
The passive wheel sensor is mounted on Track rail；The processor of child node control system is passed with passive wheel
Sensor connects, for receiving the signal triggered when train crosses；
The power supply B of the photoelectric coupling driving power part connection radio receiving transmitting module B of child node control system, to for its
Power supply；
The processor of child node control system is connected with photoelectric coupling driver, to when train crosses, child node control
The processor of system processed receives the signal of passive wheel sensor, by the closure for controlling photoelectric coupling driver driving power B
It powers to wireless module B, and signal data is sent to master controller by radio receiving transmitting module.
The voice module includes mp3 modules, power amplifier adjustment module and loud speaker；Mp3 modules pass through power amplifier adjustment module
Loud speaker is connected, to realize true man's voice broadcast.
Self-checking system is equipped in the child node control system, detecting passive wheel sensor access by brief energization is
No open circuit, and testing result code is passed into master controller.
The power pack connection solar energy storage device of the child node control system, the solar energy storage device include the sun
It can solar panel, charging protector, accumulator；Solar panels connect accumulator by charging protector.
The passive wheel sensor is connected by conducting wire with the processor external interrupt pin in node control system.
The radio receiving transmitting module A and radio receiving transmitting module B is checked the number using homogenous frequency signal grouping.
The utility model has the following advantages due to taking above technical scheme：
1) solve the necessary Attended mode in existing road room, otherwise can not provide asking for automatic early-warning for motor vehicle and pedestrian
Topic, saves manpower；
2) for there is the road room of duty personnel, intercom or mobile communication must be carried by solving, and can not externally be carried automatically
The shortcomings that showing pre-warning signal.
3) safeguard protection on circuit board is complete, and solar energy storage device specially equipped with charging protector, ensure that system
Safe to use and service life.
4) autonomous Design：System host core board provides mp3 units, realizes true man's phonetic warning, coordinates display unit
Point can specify train come to.
5) autonomous Design：Communication distance is remote；Homogenous frequency signal is checked the number using grouping, noiseless.Ensure reliable communications.
6) autonomous Design：The time that statistics vehicle joint number, calculating train running speed, pedestrian wait train arrival, (train was just
Often traveling).Since train wheel often can all generate an inductive impulse by sensor, pulse number is counted, it is possible to count
Go out the number of wheel pair, pass through wheel number, it is possible to count the joint number of a row train.Since train front and back wheel interval S is consolidated
Fixed, wheel can generate inductive impulse by sensor, count the time interval T of adjacent pulse, can obtain train speed V=
S/T.After obtaining vehicle velocity V, according to the placement distance S ' of child node, it is possible to calculate the time T ' that crossing is reached by locomotive engine
=S '/V.
7) autonomous Design：The sensor self-checking of exclusive design.Child node will be to sensor electricity every a hour
Road carries out closed circuit self-test, and since passive wheel sensor is an induction coil, we match suitable resistance in hardware design
Anti- and isolator, design impedance ensure electric current in 10ma or so, and isolator ensures current direction, prevent inverse electromotive force damage control
Whether circuit processed so not only open circuit but also can will not damage sensor with detection sensor.Brief energization detection sensor access
Whether breaking, if not occurring open circuit, as soon as signal can be generated to core control panel, core control panel has detected whether this letter
Number to determine whether normal, and corresponding testing result code is dealt into host, host code failure judgement source according to testing result, this
Kind mode is simple and reliable, if having received the testing result code sent, while also illustrates that signal communication is normal.
8) autonomous Design：Using passive wheel sensor, inductive impulse is generated for when train crosses sensor, on hardware
We use safer photoelectric coupling, delay Key dithering are used on software so that signal is more reliable.
9) autonomous Design：One row time train does not repeat early warning, after train generates early warning by a child node, road house-owner
After controller receives signal, another child node control system can be given to send a signal, ensure train at the appointed time, sail
Behind the room of passageway, an early warning will not be generated when triggering another child node sensor again.A row time train is prevented to generate twice
Early warning.
10) autonomous Design：Manual warning function is individually equipped with, core control panel is furnished with power amplifier adjustment module, after pressing just
It can play early warning sound and volume be adjustable, do not influence nearby residents, it is convenient to use when emergent.
Due to outdoor weather：Frequent continuous rainy day summer；The continuous snowy day in winter, haze weather, sunshine-duration
It is short etc..Such weather seriously affects charging effect of the solar energy to accumulator, the equipment as level crossing safety is ensured, must
It must consider the low power dissipation design of equipment, just can guarantee normal use under mal-condition.System mainly from following several respects to this into
The special design of row.
1) low power dissipation design of hardware
The low power processor of low voltage power supply is used on hardware.
Processor enters run mode by the dormant state of low-power consumption and can be switched by external interrupt wakeup.
Using photoelectric coupling driver, the larger electromagnetic relay of power consumption is not used.
Using passive wheel sensor.
Exclusive sensor self-checking circuit design, the characteristics of for sensor, using the instantaneous self test mode equipped with protection,
Ensure that monitoring information is reliable and low-power consumption.
2) low power dissipation design on software
There is no train to cross for the most of the time, do not used on software always as the big control of the power consumption of equipment power supply
Mode processed, but the method for taking time sharing power supply.This method only generates sensing arteries and veins when train wheel passes through sensor
Signal is rushed, just wakes up the dormant state in low-power consumption, core control panel is made to enter normal operating conditions, drives photoelectrical coupler
Main circuit power switch is closed, is powered (if energization power consumption is big always) for radio receiving transmitting module, into working condition.Due to logical
During letter, communications portion is power consumption the best part, and system is communicated when being communicated using dynamic interaction mode：If it senses
Train, which is sailed, carrys out a child node signal of transmission to road room, and the master controller in road room is received and replied at once after confirmation, sub- section
After point receives, then it need not subsequently send, save transmission times and also saved on the energy；If due to nearby there may be other
Communication base tower signal interference or rainy day, snowy day and haze weather can cause communication media coefficient to become larger, and communication quality declines,
Child node can continue to send repeatedly, communicate with the completion of road house-owner's machine, information is not failed to report in guarantee.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the overall logic schematic diagram of the utility model；
Fig. 2 is the master controller logical schematic of the utility model
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
All other embodiments obtained shall fall within the protection scope of the present invention.
Embodiment one
Including road junction road room, master controller, institute are equipped in road junction road room for a kind of wireless automatic early-warning device in level crossing
Stating master controller includes core control panel, radio receiving transmitting module A, voice module, display module, manual alarm switch, power supply A；
The voice module is connected with core control panel, and signal language is sent when receiving warning information for core control panel
Sound；
The display module is connected with core control panel, for showing information that core control panel receives；
The manual alarm switch is connected with core control panel, for controlling early warning sound manually；
The road junction Dao Fang both sides is each provided with a son along the train up-downlink direction 0.8-1.2km positions of train line
Node control system；
Child node control system includes power supply B, processor, radio receiving transmitting module B and photoelectric coupling driver, passive wheel
Sensor；
The master controller is carried out wireless with child node control system by radio receiving transmitting module A and radio receiving transmitting module B
Communication contact；
The passive wheel sensor is mounted on Track rail；The processor of child node control system is passed with passive wheel
Sensor connects, for receiving the signal triggered when train crosses；
The power supply B of the photoelectric coupling driving power part connection radio receiving transmitting module B of child node control system, to for its
Power supply；
The processor of child node control system is connected with photoelectric coupling driver, to when train crosses, child node control
The processor of system processed receives the signal of passive wheel sensor, by the closure for controlling photoelectric coupling driver driving power B
Power to wireless module B, to be energy saving, do not powered to wireless module previously), and signal data is passed by radio receiving transmitting module
It send to master controller.This control mode makes child node control system be chronically at the dormant state of low-power consumption, until receiving
The signal of passive wheel sensor terminates dormant state, and the startup power supply that brings into operation is opened, and radio receiving transmitting module sends signal and leads to
Know that master controller sends early warning, can more economize on electricity in this way.
Voice module includes mp3 modules, power amplifier adjustment module and loud speaker；Mp3 modules are connected by power amplifier adjustment module
Loud speaker, to realize true man's voice broadcast.
Self-checking system is equipped in child node control system, since passive wheel sensor internal is a multi-coil, is passed through
Whether brief energization detection passive wheel sensor access is breaking, and testing result code is passed to master controller.
The power pack connection solar energy storage device of child node control system, the solar energy storage device include solar-electricity
Pond plate, charging protector, accumulator.Solar panels connect accumulator by charging protector, and charging protector is stored for protection
What battery was equipped with, reverse connecting protection, overcurrent protection, overvoltage protection, lightning protection are provided.
Passive wheel sensor is connected by conducting wire with the processor external interrupt pin in node control system.It can pass
Pass the signal of train arrival, the passive wheel sensor that detection wheel crosses.It is it is unidirectional by conducting wire inductive impulse
Signal is transmitted to the processor processing of control panel, and processor can only receive its signal, it can not be controlled.But in self-test
Link processor is powered for it, detects whether open circuit.On software for triggering signal using delay Key dithering method
Come anti-interference.
Radio receiving transmitting module A and radio receiving transmitting module B is checked the number using homogenous frequency signal grouping.The wireless receipts of same number are set
Hair module could mutually receive and send messages, other number modules of same frequency will not be subject to disturb.
Embodiment two
Use example, the method for early warning of level crossing is wireless automatic early-warning device, master controller is set in road junction road room；It is described
Master controller includes core control panel, radio receiving transmitting module A, voice module, display module, manual alarm switch and power supply A；
Road junction Dao Fang both sides is each provided with a sub- node control system along the train up-downlink direction 0.8-1.2km positions of train line
System, child node control system include power supply B, processor, radio receiving transmitting module B, photoelectric coupling driver and passive wheel sensing
Device；Passive wheel sensor is installed on Track rail；
The master controller is carried out wireless with child node control system by radio receiving transmitting module A and radio receiving transmitting module B
Communication contact；
Normality：Whole system is chronically at the dormant state of low-power consumption,
Timer-controlled self-inspection：Regular time progress self-test is set, detecting passive wheel sensor access by brief energization is
No open circuit, and signal is passed into master controller；Whether brief energization detection sensor access is breaking, the production of child node control system
As soon as a raw testing result code issues core control panel, core control panel is according to this testing result code to determine whether normal.
Train passes through：Only when train enters working condition by just terminating the dormant state of low-power consumption, so do and more save
Electricity.Processor receives the signal of passive wheel sensor, and processor control photoelectric coupling driver driving power B is opened, and is
Radio receiving transmitting module B powers, then signal is transferred to the radio receiving transmitting module A of master controller, master control by radio receiving transmitting module B
After device processed receives pre-warning signal, the early warning sound of train arrival is sent by control voice module.
It tests the speed display：Train wheel often can all generate an inductive impulse, statistics pulse by passive wheel sensor
Number, it is possible to count the number of wheel pair, pass through wheel number, it is possible to the joint number of a row train is counted, due to train
Front and back wheel interval S is fixed, and wheel can generate inductive impulse by sensor, is counted the time interval T of adjacent pulse, can be obtained
To train speed V=S/T, after obtaining vehicle velocity V, according to the placement distance S ' of child node, it is possible to calculate and be arrived by locomotive engine
Up to time T '=S '/V at crossing；Train arrival time can be reported, control display module shows above- mentioned information；
It does not report again：When master controller receives the train trigger signal of a child node, master controller can send out a data
To the child node system of opposite side, it is notified at the appointed time, train sails to this node through passageway room when having trigger signal
When do not retransmit warning information, so prevent a row time train from generating early warning twice.
Control manually：It is switched by the manual alarm on master controller, directly pre-warning signal is reported in control manually.
The above is only the specific embodiments of the utility model, but the scope of protection of the utility model is not limited thereto,
In the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in or replaced
It changes, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with claim
Subject to protection domain.
Claims (6)
1. a kind of wireless automatic early-warning device in level crossing, including road junction road room, it is characterised in that：Master is equipped in road junction road room
Controller, the master controller include core control panel, radio receiving transmitting module A, voice module, display module, manual alarm and open
It closes and power supply A；
The voice module is connected with core control panel, and suggestion voice is sent when receiving warning information for core control panel；
The display module is connected with core control panel, for showing information that core control panel receives；
The manual alarm switch is connected with core control panel, for controlling early warning sound manually；
The road junction Dao Fang both sides is each provided with a child node along the train up-downlink direction 0.8-1.2km positions of train line
Control system；
Child node control system includes power supply B, processor, radio receiving transmitting module B, photoelectric coupling driver and passive wheel sensing
Device；
The master controller is communicated wirelessly with child node control system by radio receiving transmitting module A and radio receiving transmitting module B
Contact；
The passive wheel sensor is mounted on Track rail；The processor of child node control system and passive wheel sensor
Connection, for receiving the signal triggered when train crosses；
The power supply B of the photoelectric coupling driving power part connection radio receiving transmitting module B of child node control system, to be supplied for it
Electricity；
The processor of child node control system is connected with photoelectric coupling driver, to when train crosses, child node controls system
The processor of system receives the signal of passive wheel sensor, by controlling the closure of photoelectric coupling driver driving power B to nothing
Wire module B powers, and signal data is sent to master controller by radio receiving transmitting module.
2. the level crossing as described in claim 1 is wireless automatic early-warning device, it is characterised in that：The voice module includes mp3 moulds
Block, power amplifier adjustment module and loud speaker；Mp3 modules connect loud speaker by power amplifier adjustment module, to realize that true man's voice is broadcast
Report.
3. the level crossing as described in claim 1 is wireless automatic early-warning device, it is characterised in that：It is set in the child node control system
There is self-checking system, it is whether breaking by brief energization detection passive wheel sensor access, and testing result code is passed into master
Controller.
4. the level crossing as described in claim 1 is wireless automatic early-warning device, it is characterised in that：The confession of the child node control system
Electric part connection solar energy storage device, the solar energy storage device include solar panel, charging protector, accumulator；Too
Positive energy plate connects accumulator by charging protector.
5. the level crossing as described in claim 1 is wireless automatic early-warning device, it is characterised in that：The passive wheel sensor passes through
Conducting wire is connected with the processor external interrupt pin in node control system.
6. the level crossing as described in claim 1 is wireless automatic early-warning device, it is characterised in that：The radio receiving transmitting module A and nothing
Line transceiver module B is checked the number using homogenous frequency signal grouping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958391.7U CN207389220U (en) | 2017-08-03 | 2017-08-03 | Level crossing is wireless automatic early-warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958391.7U CN207389220U (en) | 2017-08-03 | 2017-08-03 | Level crossing is wireless automatic early-warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207389220U true CN207389220U (en) | 2018-05-22 |
Family
ID=62418889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720958391.7U Active CN207389220U (en) | 2017-08-03 | 2017-08-03 | Level crossing is wireless automatic early-warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207389220U (en) |
-
2017
- 2017-08-03 CN CN201720958391.7U patent/CN207389220U/en active Active
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