CN203405855U - Device used for monitoring electronic toll collection system equipment - Google Patents
Device used for monitoring electronic toll collection system equipment Download PDFInfo
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- CN203405855U CN203405855U CN201320558241.9U CN201320558241U CN203405855U CN 203405855 U CN203405855 U CN 203405855U CN 201320558241 U CN201320558241 U CN 201320558241U CN 203405855 U CN203405855 U CN 203405855U
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Abstract
The utility model provides a device used for monitoring electronic toll collection system equipment. The device mainly comprises a reception antenna, a signal processing circuit, a micro processor and a USB conversion chip, wherein the reception antenna is connected with the signal processing circuit, the signal processing circuit is connected with the micro processor and the USB conversion chip, the micro processor is connected with the USB conversion chip, a microwave signal which is received by the reception antenna and is sent by ETC system equipment is transmitted to the signal processing circuit, processing of amplification, demodulation and comparison on the microwave signal is carried out by the signal processing circuit, a digital signal after processing is transmitted to the micro processor, decoding and framing on the digital signal transmitted by the signal processing circuit are carried out by the micro processor, and the signal processed by the micro processor is transmitted to a host computer outside the device through the USB conversion chip. The device can effectively monitor air signals of the ETC equipment, such as an RSU or an OBU, so a maintainer can quickly position fault ETC equipment and a fault point.
Description
Technical field
The utility model relates to ETC(Electronic Toll Collection, electric non-stop toll) systems technology field, relate in particular to a kind of device that ETC system equipment is monitored.
Background technology
ETC system is extensively promoted at home, for the vehicle non-parking charge under the environment such as highway and bridge tunnel.Two standard fittings of ETC system are respectively OBU(On-Board Unit, board units) and RSU(Roadside Unit, roadside unit).Board units is installed on the front windshield of vehicle, and roadside unit is arranged on the portal frame of the lane in which the drivers should pay fees.When the vehicle that OBU is installed is when having installed the ETC track of RSU, OBU and RSU, by microwave communication, automatically complete and deduct fees without parking, efficiently solve the problem of traffic jam.
Yet, in the maintenance and compatibility test of actual ETC equipment, conventionally to debug the OBU breaking down and RSU equipment, therefore need to the signal of RSU in process of exchange and OBU be collected and be monitored, to realize the concrete location to fault.
At present, the high volume of the general cost of the monitoring device of more existing ETC equipment is large, not portable; Or employing narrow-band reception, can only only realize and monitoring a kind of ETC equipment a time, causes the on-the-spot inconvenience of using, and process is loaded down with trivial details.Therefore the signal monitoring device of, developing a kind of high efficiency ETC equipment is very necessary.
Utility model content
Embodiment of the present utility model provides a kind of device that ETC system equipment is monitored, and to realize, the signal of ETC equipment is effectively monitored.
A kind of device that electronic charging system without parking equipment is monitored, comprise: receiving antenna, signal processing circuit, microprocessor and USB conversion chip, described receiving antenna is connected with described signal processing circuit, described signal processing circuit is connected with described microprocessor, USB conversion chip, and described microprocessor is connected with described USB conversion chip;
The microwave signal that described receiving antenna sends the electric non-stop toll ETC system equipment receiving is transferred to described signal processing circuit;
Described signal processing circuit to described microwave signal amplify, detection and relatively processing, by the digital data transmission obtaining after processing to described microprocessor;
The digital signal that described microprocessor transmits described signal processing circuit is decoded and framing is processed, and the information exchange obtaining after processing is crossed to the host computer that described USB conversion chip is transferred to device outside.
Described signal processing circuit comprises: low noise amplifier unit, Power Amplifier Unit, logarithmic detector and integrated comparator, described Power Amplifier Unit is connected with described low noise amplifier unit, logarithmic detector, and described logarithmic detector is also connected with described integrated comparator;
The microwave signal that described low noise amplifier unit transmits described receiving antenna is amplified processing, and the microwave signal of amplifying after processing is transferred to described Power Amplifier Unit;
Described Power Amplifier Unit amplifies processing to the microwave signal receiving, and the microwave signal of amplifying after processing is transferred to described logarithmic detector;
Described logarithmic detector carries out detection processing to the microwave signal receiving, and the microwave signal after detection is processed is transferred to described integrated comparator;
Described integrated comparator compares processing to the microwave signal receiving, by the digital data transmission obtaining after relatively processing to described microprocessor.
Described low noise amplifier unit comprises: two the first low noise amplifiers that are connected in series and the second low noise amplifier.
Described low noise amplifier unit also comprises: attenuator, this attenuator carries out attenuation processing to the microwave signal of described the first low noise amplifier output, and the microwave signal after attenuation processing is transferred to described the second low noise amplifier.
Described Power Amplifier Unit comprises: two power amplifiers that are connected in series.
Described Power Amplifier Unit also comprises: capacitance and filter capacitor, this capacitance and filter capacitor mate microwave signal and filtering is processed.
Described ETC system equipment comprises roadside device and board units.
Described microprocessor is powered to described signal processing circuit by described USB conversion chip.
Described microprocessor comprises on-site programmable gate array FPGA microprocessor.
The technical scheme being provided by above-mentioned embodiment of the present utility model can be found out, the utility model embodiment is by being used the monitoring device of internal USB conversion chip, signal processing circuit etc., realized the aerial signal of the ETC equipment such as RSU or OBU has effectively been monitored, make plant maintenance person can locate fast fault ETC equipment and trouble spot, become the effective tool of ETC equipment failure location.
Accompanying drawing explanation
The structural representation of a kind of device that ETC system is monitored that Fig. 1 provides for the utility model embodiment, in figure, microprocessor 10, signal processing circuit 20, receiving antenna 30 and USB(Universal Serial Bus, USB (universal serial bus)) conversion chip 40;
The structural representation of a kind of signal processing circuit 20 that Fig. 2 provides for the utility model embodiment, in figure, low noise amplifier unit 210, Power Amplifier Unit 220, logarithmic detector 230 and integrated comparator 240.
Embodiment
For ease of the understanding to the utility model embodiment, below in conjunction with accompanying drawing, take several specific embodiments and be further explained explanation as example, and each embodiment does not form the restriction to the utility model embodiment.
The utility model embodiment provides a kind of device that ETC system is monitored, its structural representation as shown in Figure 1, specifically can comprise: microprocessor 10, signal processing circuit 20, receiving antenna 30 and USB(Universal Serial Bus, USB (universal serial bus)) conversion chip 40, described receiving antenna is connected with described signal processing circuit 20, described signal processing circuit 20 is connected with described microprocessor 10, USB conversion chip 40, and described microprocessor 10 is connected with described USB conversion chip 40.
The microwave signal that described receiving antenna 30 sends the ETC system equipment receiving is transferred to described signal processing circuit 20, and above-mentioned ETC system equipment can comprise OBU and RSU.
The microwave signal that 20 pairs of described receiving antennas 30 of described signal processing circuit transmit is amplified, detection and relatively processing, by the digital data transmission obtaining after processing to described microprocessor 10.
The processing such as the digital signal that 10 pairs of described signal processing circuits of described microprocessor transmit is decoded, framing, and the information exchange obtaining after processing is crossed to the host computer that described USB conversion chip 40 is transferred to device outside.
Above-mentioned signal processing circuit 20 is the Wideband Signal Processing circuit, the structural representation of a kind of above-mentioned signal processing circuit 20 that the utility model embodiment provides as shown in Figure 2, comprise: low noise amplifier unit 210, Power Amplifier Unit 220, logarithmic detector 230 and integrated comparator 240, described Power Amplifier Unit 220 is connected with described low noise amplifier unit 210, logarithmic detector 230, and described logarithmic detector 230 is also connected with described integrated comparator 240.
The microwave signal that the described receiving antenna in 210 pairs of described low noise amplifier unit transmits is amplified processing, and the microwave signal of amplifying after processing is transferred to described Power Amplifier Unit.Low noise amplifier unit 210 is for realizing the reception of tiny signal and amplification, to meet highly sensitive requirement.
220 pairs of microwave signals that receive of described Power Amplifier Unit are amplified processing, and the microwave signal of amplifying after processing is transferred to described logarithmic detector;
230 pairs of microwave signals that receive of described logarithmic detector are carried out detection processing, and the microwave signal after detection is processed is transferred to described integrated comparator;
240 pairs of microwave signals that receive of described integrated comparator compare processing, by the digital data transmission obtaining after relatively processing to described microprocessor.Above-mentioned integrated comparator can be low-power consumption integrated comparator.
Described low noise amplifier unit 210 can comprise: two the first low noise amplifiers that are connected in series and the second low noise amplifier.Described low noise amplifier unit 210 also comprises: attenuator, and such as Pi type attenuator.Above-mentioned attenuator is suitably decayed to the microwave signal of the first low noise amplifier output, and the microwave signal after attenuation processing is transferred to described the second low noise amplifier.The input signal of the second low noise amplifier is regulated, prevent that the second low noise amplifier is saturated, guarantee the dynamic range of whole receiving circuit, and circuit impedance is mated.
Described Power Amplifier Unit 220 comprises: two the first power amplifiers that are connected in series and the second power amplifier.Described Power Amplifier Unit 220 also comprises: capacitance and filter capacitor, this capacitance and filter capacitor mate and filtering processing inputing to the microwave signal of the first power amplifier, and circuit impedance is mated.
Described microprocessor is also powered to described signal processing circuit by described USB conversion chip.Described microprocessor can include but not limited to FPGA(Field-Programmable Gate Array, field programmable gate array) microprocessor.
Microprocessor completes the configuration to other modules, and realizes data interaction by USB conversion chip and host computer.
In sum, the utility model embodiment is by being used the monitoring device of internal USB conversion chip, signal processing circuit etc., realized the aerial signal of the ETC equipment such as RSU or OBU has effectively been monitored, make plant maintenance person can locate fast fault ETC equipment and trouble spot, become the effective tool of ETC equipment failure location.
The utility model embodiment is by being used USB conversion chip, the functions such as USB2.0 full speed function control device, transceiver, crystal oscillator, EEPROM that this USB conversion chip is built-in, realize USB-UART switching, and the power supply of whole monitoring device are provided, without externally fed, easy to use.The small and exquisite portable of whole monitoring device, environment for use is flexible, can meet the needs of track test or indoor test environment.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, the module in accompanying drawing or flow process might not be that enforcement the utility model is necessary.
One of ordinary skill in the art will appreciate that: the parts in the device in embodiment can be described and be distributed in the device of embodiment according to embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The parts of above-described embodiment can be merged into parts, also can further split into a plurality of subassemblies.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1. the device that electronic charging system without parking equipment is monitored, it is characterized in that, comprise: receiving antenna, signal processing circuit, microprocessor and USB conversion chip, described receiving antenna is connected with described signal processing circuit, described signal processing circuit is connected with described microprocessor, USB conversion chip, and described microprocessor is connected with described USB conversion chip;
The microwave signal that described receiving antenna sends the electric non-stop toll ETC system equipment receiving is transferred to described signal processing circuit;
Described signal processing circuit to described microwave signal amplify, detection and relatively processing, by the digital data transmission obtaining after processing to described microprocessor;
The digital signal that described microprocessor transmits described signal processing circuit is decoded and framing is processed, and the information exchange obtaining after processing is crossed to the host computer that described USB conversion chip is transferred to device outside.
2. the device that electronic charging system without parking equipment is monitored according to claim 1, it is characterized in that, described signal processing circuit comprises: low noise amplifier unit, Power Amplifier Unit, logarithmic detector and integrated comparator, described Power Amplifier Unit is connected with described low noise amplifier unit, logarithmic detector, and described logarithmic detector is also connected with described integrated comparator;
The microwave signal that described low noise amplifier unit transmits described receiving antenna is amplified processing, and the microwave signal of amplifying after processing is transferred to described Power Amplifier Unit;
Described Power Amplifier Unit amplifies processing to the microwave signal receiving, and the microwave signal of amplifying after processing is transferred to described logarithmic detector;
Described logarithmic detector carries out detection processing to the microwave signal receiving, and the microwave signal after detection is processed is transferred to described integrated comparator;
Described integrated comparator compares processing to the microwave signal receiving, by the digital data transmission obtaining after relatively processing to described microprocessor.
3. the device that electronic charging system without parking equipment is monitored according to claim 2, is characterized in that, described low noise amplifier unit comprises: two the first low noise amplifiers that are connected in series and the second low noise amplifier.
4. the device that electronic charging system without parking equipment is monitored according to claim 3, it is characterized in that, described low noise amplifier unit also comprises: attenuator, this attenuator carries out attenuation processing to the microwave signal of described the first low noise amplifier output, and the microwave signal after attenuation processing is transferred to described the second low noise amplifier.
5. the device that electronic charging system without parking equipment is monitored according to claim 2, is characterized in that, described Power Amplifier Unit comprises: two power amplifiers that are connected in series.
6. the device that electronic charging system without parking equipment is monitored according to claim 5, it is characterized in that, described Power Amplifier Unit also comprises: capacitance and filter capacitor, this capacitance and filter capacitor mate microwave signal and filtering is processed.
7. the device that electronic charging system without parking equipment is monitored according to claim 1, is characterized in that, described ETC system equipment comprises roadside device and board units.
8. according to the device that electronic charging system without parking equipment is monitored described in claim 1 to 7 any one, it is characterized in that, described microprocessor is powered to described signal processing circuit by described USB conversion chip.
9. the device that electronic charging system without parking equipment is monitored according to claim 8, is characterized in that, described microprocessor comprises on-site programmable gate array FPGA microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558241.9U CN203405855U (en) | 2013-09-09 | 2013-09-09 | Device used for monitoring electronic toll collection system equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320558241.9U CN203405855U (en) | 2013-09-09 | 2013-09-09 | Device used for monitoring electronic toll collection system equipment |
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| Publication Number | Publication Date |
|---|---|
| CN203405855U true CN203405855U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320558241.9U Expired - Lifetime CN203405855U (en) | 2013-09-09 | 2013-09-09 | Device used for monitoring electronic toll collection system equipment |
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| Country | Link |
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| CN (1) | CN203405855U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107871343A (en) * | 2016-09-28 | 2018-04-03 | 北京中科国技信息系统有限公司 | Electronic charging system without parking ETC detecting systems and method |
| CN110689632A (en) * | 2019-08-22 | 2020-01-14 | 北京易路行技术有限公司 | Data transmission method, data transmission device and ETC signal receiving antenna |
| CN111158943A (en) * | 2019-12-20 | 2020-05-15 | 航天信息股份有限公司 | Fault diagnosis method and apparatus, storage medium, electronic device |
| 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 |
-
2013
- 2013-09-09 CN CN201320558241.9U patent/CN203405855U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107871343A (en) * | 2016-09-28 | 2018-04-03 | 北京中科国技信息系统有限公司 | Electronic charging system without parking ETC detecting systems and method |
| CN110689632A (en) * | 2019-08-22 | 2020-01-14 | 北京易路行技术有限公司 | Data transmission method, data transmission device and ETC signal receiving antenna |
| CN111158943A (en) * | 2019-12-20 | 2020-05-15 | 航天信息股份有限公司 | Fault diagnosis method and apparatus, storage medium, electronic device |
| CN111158943B (en) * | 2019-12-20 | 2024-03-22 | 航天信息股份有限公司 | Fault diagnosis method and device, storage medium and electronic equipment |
| 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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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |