CN205827440U - A kind of ETC track signal supervisory instrument - Google Patents
A kind of ETC track signal supervisory instrument Download PDFInfo
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- CN205827440U CN205827440U CN201620418638.1U CN201620418638U CN205827440U CN 205827440 U CN205827440 U CN 205827440U CN 201620418638 U CN201620418638 U CN 201620418638U CN 205827440 U CN205827440 U CN 205827440U
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Abstract
The utility model discloses a kind of ETC track signal supervisory instrument, this device includes power management module, MCU control module, human-computer interface module, signal detection module.This ETC track signal supervisory instrument includes signal detection module, uses reception antenna to receive the DSRC signal that the RSU equipment on ETC track is launched, and by the characteristic information of signal detection module output DSRC signal.The feature of the signal that signal detection module detection RSU equipment is launched, it is achieved detection and the judgement of assessment to RSU machine operation.
Description
Technical field
This utility model relates to DSRC (Dedicated Short Range Communications, DSRC)
Technology signal detection field, be specifically related to a kind of electronic charging system without parking (Electronic Toll Collection,
ETC) device of roadside unit (Road Side Unit, RSU) device signal detection on track.
Background technology
At present, the most widely available electronic charging system without parking in the freeway facility of the whole nation, and it is special to be provided with ETC
With track, each ETC track being fitted with RSU equipment, for large number of RSU equipment, freeway management unit is led to
Crossing and the means such as inspect, patrol and examine by random samples to detect the ruuning situation of the RSU equipment on ETC dedicated Lanes, whether equipment performance index meets
Requirement.
Freeway management unit, by using professional equipment, such as: microwave antenna, audiofrequency spectrometer, signal source etc. are to ETC car
The DSRC signal that RSU equipment on road is launched detects, and detection equipment cost is high, and detection means is complicated, needs specialty
Technical staff operates and tests.
But, at freeway toll station, when the RSU equipment appearance transmitting signal power on ETC track is too small, RSU sets
The when that preparation penetrating the RSU machine operation exception such as jitter, RSU equipment buying signals overlay area run-off-road,
Charge station personnel lack special equipment and RSU equipment are detected and assessed, and therefore, the staff of charge station cannot be right
RSU machine operation on ETC track judges accurately；When the RSU machine operation occurred on this ETC track
The when of abnormal, often cause vehicle to deduct fees, leak deduct fees, deduct fees by mistake, the problem such as impassable of deducting fees.
Accordingly, it would be desirable to a kind of easy, easy to operate equipment, the DSRC signal that the RSU equipment on ETC track is launched
Detect and assess.
Utility model content
In order to solve the problem of the DSRC signal that the RSU equipment on detection ETC track simply, easily and fast is launched, this
Utility model provides a kind of ETC track signal supervisory instrument, it is possible to the signal characteristic of the RSU equipment on detection ETC track, as
Signal quality, signal coverage areas, signal power strength etc..
In order to achieve the above object, this utility model adopts the technical scheme that:
A kind of ETC track signal supervisory instrument, comprises: MCU control module, and respectively with described MCU control module phase
The power management module of connection, human-computer interface module, signal detection module, it is characterised in that
Described signal detection module detection receives the DSRC signal that the RSU equipment on ETC track is launched, and extracts DSRC
The feature of signal；
Described MCU control module analyzes DSRC signal characteristic, and exports the result of determination of RSU machine operation.
Further, described signal detection module comprises signal receiving antenna, signal amplification unit, signal filtering list
Unit, signal characteristic abstraction unit.
The described reception antenna in signal detection module is for receiving the DSRC signal that RSU equipment is launched.
Further, described signal characteristic abstraction unit can comprise signal demodulation unit, wherein signal demodulation unit
By connection to power management module, MCU control module, for demodulating the DSRC signal that RSU equipment is launched, and will demodulation
After digital signal output.
Further, described signal characteristic abstraction unit can also comprise signal power detector unit, wherein signal merit
Rate detector unit is by connection to power management module, MCU control module, for detecting the DSRC letter that RSU equipment is launched
Number power features, and the power features of signal is converted to digital signal output.
Further, described signal characteristic abstraction unit can also comprise signal frequency detector unit, wherein signal frequency
Rate detector unit is by connection to power management module, MCU control module, for detecting the DSRC letter that RSU equipment is launched
Number frequecy characteristic, and the frequecy characteristic of signal is converted to digital signal output.
Described MCU control module, has been used for the parsing of the feature receiving signal to described signal detection module,
And for described power management module, the management of human-computer interface module and control.
Further, described MCU control module comprises MCU processor unit, crystal oscillator, described for receiving
The digital signal of signal detection module, for resolving the digital signal received, it is judged that the ruuning situation of RSU equipment, Yi Jiyong
Display, the result of prompting is needed in output.
Described human-computer interface module, for pointing out, show the output information of MCU control module.
Further, described human-computer interface module comprises LED light, buzzer, display screen, one or many therein
, and be connected with MCU control module by circuit.
Described power management module, also comprises solar panel, rechargeable battery, disposable battery, and therein one
Item or multinomial.
Described DSRC signal, the microwave signal meeting ETC track standard launched for RSU equipment, its signal quality, frequently
Rate, power are its inherent character.
Described ETC lane detection device can be portable handheld device, it is also possible to be fixedly mounted on vehicle
Detection equipment.
Having the beneficial effects that of this utility model a kind of ETC track signal supervisory instrument:
A kind of ETC track described in the utility model signal supervisory instrument, is launched by signal detection module detection RSU equipment
The feature of signal, launches the feature of signal, such as signal quality, signal coverage areas, signal power according to the RSU equipment detected
Intensity etc., for judging the ruuning situation of the RSU equipment on ETC dedicated Lanes, and whether equipment performance index meets requirement,
Thus realize with a kind of easy, quick, easy to operate detection to the RSU machine operation on ETC track and comment
Estimate.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of ETC of this utility model track signal supervisory instrument；
Fig. 2 is the workflow diagram of a kind of ETC of this utility model track signal supervisory instrument；
Fig. 3 is a kind of structural representation detecting RSU device signal frequency and power features in detailed description of the invention；
Fig. 4 is a kind of structural representation detecting RSU device signal qualitative character in detailed description of the invention.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, this utility model is described in further detail.
At this it should be noted that be adapted to assist in for the explanation of these embodiments and understand this utility model, but not
Constitute restriction of the present utility model.
As long as additionally, technical characteristic involved in each embodiment of this utility model disclosed below each other it
Between do not constitute conflict just can be mutually combined.
Fig. 1 is the structured flowchart of a kind of ETC of this utility model track signal supervisory instrument, a kind of ETC track signal detection
Device 1, includes MCU control module 10, signal detection module 11, human-computer interface module 12, power management module 13.
Described power management module 13, is connected with MCU control module 10, and by the control of MCU control module 10, uses
In powering for track signal supervisory instrument 1 modules.
Described MCU control module 10, with signal detection module 11, human-computer interface module 12, power management module 13 even
Connect, be the data message receiver module of signal detection module 11, be the data message source of human-computer interface module 12, be power management
The data message source of module 13, for the communication for track signal supervisory instrument 1 with modules, and is used for carrying out at logic
Reason and decision-making.
Described MCU control module 10, receives the data message of signal detection module 11, and resolves data message, according to
The result corresponding information of output resolved, to human-computer interaction interface module, is omitted MCU control module 10 herein and is normally worked and need
The crystal oscillator wanted, download program interface etc..
Described human-computer interface module 12, shows for ETC track signal supervisory instrument 1, man-machine interaction circle of information
Face, needs display, the word of prompting, picture, sound, optical signal etc. for exporting ETC track signal supervisory instrument 1.
Additionally, human-computer interface module 12 can also comprise in LED light, buzzer, display screen or multinomial,
It is used to refer to, shows the information that needs export.
Described signal detection module 11, for the signal reception of track signal supervisory instrument 1, signal processing, signal output
Unit, power management module 13 power, and the DSRC signal that the RSU equipment received is launched to be converted to digital signal defeated
Go out.
Additionally, signal detection module 11 also comprises signal receiving antenna, signal amplification unit, signal filtering unit, wherein
Reception antenna is used for receiving the DSRC signal that RSU equipment is launched, and signal filtering unit is used for extracting in the signal received
DSRC valid data, signal amplification unit is used for being amplified by the valid data in DSRC signal and exporting.
Additionally, signal detection module 11 can also comprise signal demodulation unit, signal power detector unit, signal frequency inspection
Surveying in unit or multinomial, the feature of DSRC signal being used for launching RSU equipment is extracted, and is converted to numeral
Signal exports.
Described DSRC signal, the microwave signal meeting ETC track standard launched for RSU equipment, its frequency range, merit
Rate intensity is its inherent character.
Fig. 2 is the workflow diagram of a kind of ETC of this utility model track signal supervisory instrument.
ETC track signal supervisory instrument is placed on ETC track, selects to be in RSU antenna transaction area on ETC track
One test point, starts test.
When the RSU antenna on ETC track is in open mode, RSU antenna can launch DSRC signal, now, ETC track
The reception antenna of signal supervisory instrument will receive DSRC signal, extract DSRC signal characteristic through signal detection module.
The DSRC signal characteristic information extracted is through the analysis of MCU processing unit and calculating, and it is actual to combine ETC track
Situation, it can be determined that go out in current test point, whether the DSRC signal detected is in abnormality；If it is determined that currently test
The DSRC signal of point is in abnormality, then human-computer interface module output information；If it is determined that the DSRC of current test point
Signal is in normal condition, then export information, the next test point that prompting operator are switched on ETC track, enter
The ETC track signal detection of the next test point of row.
After all test points on ETC track have been fully completed the feature detection of DSRC signal, ETC lane detection device
According to the characteristic information of all DSRC signals on the ETC track collected, it is analyzed, processes and calculates, draw current ETC
Whether the RSU equipment on track is in the conclusion of normal operating conditions, and defeated testing result.
Embodiment one
Fig. 3 is a kind of detection RSU equipment in the signal supervisory instrument detailed description of the invention of a kind of ETC of this utility model track
Signal frequency and the structural representation of power features, its operation principle is:
ETC track signal supervisory instrument 3 is placed in the test point in ETC track, in ETC track signal supervisory instrument 3
Detecting signal unit 31 includes signal receiving antenna 310, signal filtering unit 311, signal amplification unit 312, power detection
Unit 313 and frequency detecting unit 314, be used for the feature of the DSRC signal of the RSU antenna transmitting detecting in ETC track.
Wherein, signal receiving antenna 310, receive the DSRC signal that the RSU equipment on ETC track is launched, and by signal
It is transferred to signal filtering unit 311 by microstrip line.
After the signal that reception antenna 310 receives is filtered processing by signal filtering unit 311, retain the special frequency of DSRC
The signal of section, and be transferred to signal amplification unit 312 by microstrip line and carry out the amplification of signal.
DSRC signal after signal amplification unit will amplify is transferred to power detecting unit 313 and frequency detecting unit 314.
Power detection chip within power detecting unit 313, detects the power level characteristic information of DSRC signal, as
Making an uproar in peak power, mean power, the end, and is converted to digital signal output, are transferred to MCU control module by digital link
30。
Frequency detecting chip within frequency detecting unit 314, detects the frequecy characteristic information of DSRC signal, as taken
Bandwidth, mid frequency, spuious etc., and be converted to digital signal output, it is transferred to MCU control module 30 by digital link.
MCU control module 30 receives the characteristic information of the DSRC signal that signal detection module 31 transmits；And according to
The signal power in ETC track requires, signal frequency requirement, it is judged that whether the DSRC signal of current test point meets RSU equipment
Can index request；Then will determine that result is transferred to human-computer interface module 32 by connecting line, and preserve testing result.
LED light 320 in human-computer interface module 32 and display screen 321, the MCU control module 30 according to receiving passes
Defeated information, completes prompting, display operation.
According to above-mentioned operation principle, ETC track signal supervisory instrument 3 completes the DSRC signal inspection of a test point
Survey.
It is similar to, ETC track signal supervisory instrument 3 is changed to the another one test point in ETC track, repeats above-mentioned mistake
Journey, completes the DSRC signal detection of other test points.
According to the testing result of each test point on whole ETC track, MCU control module 30 can be according to ETC track
On RSU equipment performance index request, it is judged that whether the ruuning situation of the RSU equipment on ETC track normal, the property of RSU equipment
Index whether can meet requirement.
Embodiment two
Fig. 4 is a kind of detection RSU equipment in the signal supervisory instrument detailed description of the invention of a kind of ETC of this utility model track
The structural representation of signal quality characteristics, its operation principle is:
ETC track signal supervisory instrument 4 is placed in the test point in ETC track, in ETC track signal supervisory instrument 4
Detecting signal unit 41 includes signal receiving antenna 410, signal filtering unit 411, signal amplification unit 412, signal demodulation
Unit 413, is used for the feature of the DSRC signal of the RSU antenna transmitting detecting in ETC track.
Wherein, signal receiving antenna 410, receive the DSRC signal that the RSU equipment on ETC track is launched, and by signal
It is transferred to signal filtering unit 411 by microstrip line.
After the signal that reception antenna 410 receives is filtered processing by signal filtering unit 411, retain the special frequency of DSRC
The signal of section, and be transferred to signal amplification unit 412 by microstrip line and carry out the amplification of signal.
DSRC signal after signal amplification unit will amplify is transferred to signal demodulation unit 413.
Demodulation chip within signal demodulation unit 413, detects the signal quality characteristics information of DSRC signal, such as baud
Rate, the index of modulation, the bit error rate etc., and be converted to digital signal output, it is transferred to MCU control module 40 by digital link.
MCU control module 40 receives the characteristic information of the DSRC signal that signal detection module 41 transmits；And according to
The demand on signal quality in ETC track, it is judged that whether the DSRC signal of current test point meets RSU equipment performance index request；So
After will determine that result is transferred to human-computer interface module 42 by connecting line, and preserve testing result.
Buzzer 420 in human-computer interface module 42, according to the information of MCU control module 40 transmission received, completes
Prompting operation.
According to above-mentioned operation principle, ETC track signal supervisory instrument 4 completes the DSRC signal inspection of a test point
Survey.
It is similar to, ETC track signal supervisory instrument 4 is changed to the another one test point in ETC track, repeats above-mentioned mistake
Journey, completes the DSRC signal detection of other test points.
According to the testing result of each test point on whole ETC track, MCU control module 40 can be according to ETC track
On RSU equipment performance index request, it is judged that whether the ruuning situation of the RSU equipment on ETC track normal, the property of RSU equipment
Index whether can meet requirement.
The above, part embodiment the most of the present utility model, it is not intended to limit guarantor of the present utility model
Protect scope, various amendments that those skilled in the art is carried out according to spirit of the present utility model and principle, equivalent and
Modification is improved and be should be included in claims of the present utility model.
Claims (6)
1. an ETC track signal supervisory instrument, comprises: MCU control module, and is connected with described MCU control module respectively
The power management module that connects, human-computer interface module, signal detection module, it is characterised in that
Described signal detection module detection receives the DSRC signal that the RSU equipment on ETC track is launched, and extracts DSRC signal
Feature；
Described MCU control module analyzes DSRC signal characteristic, and exports the result of determination of RSU machine operation.
A kind of ETC track the most according to claim 1 signal supervisory instrument, it is characterised in that described signal detection mould
Block is made up of signal receiving antenna, signal filtering unit, signal amplification unit, signal characteristic abstraction unit.
3. according to a kind of ETC track signal supervisory instrument described in claim 1 or claim 2, it is characterised in that described
Signal characteristic abstraction unit comprise in signal demodulation unit, signal power detector unit, signal frequency detector unit or
Person is multinomial.
4. according to a kind of ETC track signal supervisory instrument described in claim 1 or claim 2, it is characterised in that described
Signal characteristic abstraction unit and MCU control module pass through connection.
A kind of ETC track the most according to claim 1 signal supervisory instrument, it is characterised in that described MCU control module
The feature of the DSRC signal receiving described signal detection module resolves.
6. according to a kind of ETC track signal supervisory instrument described in claim 1 or claim 5, it is characterised in that described
MCU control module resolves the digital signal received, it is judged that the ruuning situation of RSU equipment, and exports the knot needing display, pointing out
Really.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620418638.1U CN205827440U (en) | 2016-05-10 | 2016-05-10 | A kind of ETC track signal supervisory instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620418638.1U CN205827440U (en) | 2016-05-10 | 2016-05-10 | A kind of ETC track signal supervisory instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817801A (en) * | 2020-07-31 | 2020-10-23 | 河北交投智能交通技术有限责任公司 | RSU signal strength detection device and method for adjusting RSU microwave read-write antenna position |
| CN112132985A (en) * | 2020-09-08 | 2020-12-25 | 北京中交国通智能交通系统技术有限公司 | Active data acquisition device of electronic toll collection equipment |
-
2016
- 2016-05-10 CN CN201620418638.1U patent/CN205827440U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111817801A (en) * | 2020-07-31 | 2020-10-23 | 河北交投智能交通技术有限责任公司 | RSU signal strength detection device and method for adjusting RSU microwave read-write antenna position |
| CN111817801B (en) * | 2020-07-31 | 2022-11-22 | 河北交投智能交通技术有限责任公司 | RSU signal strength detection device and method for adjusting RSU microwave read-write antenna position |
| CN112132985A (en) * | 2020-09-08 | 2020-12-25 | 北京中交国通智能交通系统技术有限公司 | Active data acquisition device of electronic toll collection equipment |
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