CN211348439U - Detection equipment for single-point field intensity - Google Patents
Detection equipment for single-point field intensity Download PDFInfo
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- CN211348439U CN211348439U CN201922096015.3U CN201922096015U CN211348439U CN 211348439 U CN211348439 U CN 211348439U CN 201922096015 U CN201922096015 U CN 201922096015U CN 211348439 U CN211348439 U CN 211348439U
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Abstract
The utility model provides a check out test set of single-point field intensity, above-mentioned check out test set includes: the receiving antenna is used for receiving microwave signals of the RSU and transmitting the microwave signals to the signal processing circuit; the signal processing circuit is connected with the receiving antenna in series and is used for preprocessing the microwave signal, converting the preprocessed microwave signal into a digital signal and transmitting the digital signal to the processor; the treater, with signal processing circuit establishes ties for with digital signal sends to the host computer through communication module, so that the host computer is confirmed according to received digital signal the single-point field intensity adopts above-mentioned technical scheme, has solved among the correlation technique in ETC application scene, adopts the spectrometer to carry out the process that detects to the single-point field intensity, and the cost is very high, and the spectrometer carries inconvenient problem.
Description
Technical Field
The utility model relates to a communication field particularly, relates to a check out test set of single-point field intensity.
Background
Electronic Toll Collection (ETC) transaction system is mainly used for vehicle non-stop Toll Collection in environments such as expressways, bridges and tunnels. The ETC transaction system realizes automatic fee deduction of vehicles and greatly relieves traffic pressure of toll stations through microwave communication between a Road Side Unit (RSU) and an On-Board Unit (OBU).
However, in the research, development, debugging and post-maintenance processes of the RSU device, the problems of transaction failure and transaction area need to be often located, at this time, the field intensity value of the RSU at a certain point is an indispensable parameter, and the spectrometer is an effective device for detecting the field intensity value, but the spectrometer is expensive and inconvenient to carry, and is difficult to meet the field use requirement.
Aiming at the problems that in the related art, in an ETC application scene, the cost is very high and the frequency spectrograph is inconvenient to carry in the process of detecting the single-point field intensity by adopting the frequency spectrograph, an effective solution does not exist at present.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a check out test set of single-point field intensity to in solving the correlation technique and using the scene at the ETC, adopt the frequency spectrograph to carry out the process that detects to single-point field intensity, the cost is very high, and the frequency spectrograph carries inconvenient problem.
According to the utility model discloses an embodiment provides a check out test set of single-point field intensity, include: the receiving antenna is used for receiving microwave signals of the RSU and transmitting the microwave signals to the signal processing circuit; the signal processing circuit is connected with the receiving antenna in series and is used for preprocessing the microwave signal, converting the preprocessed microwave signal into a digital signal and transmitting the digital signal to the processor; and the processor is connected with the signal processing circuit in series and is used for sending the digital signal to an upper computer through a communication module so that the upper computer determines the single-point field intensity according to the received digital signal.
In an embodiment of the present invention, the signal processing circuit includes: the microwave signal processing circuit comprises a signal conditioning circuit and an analog-to-digital (AD) conversion module, wherein the signal conditioning circuit is used for at least executing the following processing on a microwave signal: amplifying, filtering and power detecting, and sending the processed analog voltage to the analog-to-digital (AD) conversion module; the analog-to-digital (AD) conversion module is connected with the signal conditioning circuit in series and used for converting the received processed microwave signal into a digital signal.
In an embodiment of the present invention, the signal conditioning circuit includes: the low-noise amplifier unit is used for amplifying the microwave signals transmitted by the receiving antenna and transmitting the amplified microwave signals to the filter unit; the filter unit is used for filtering the microwave signals in a specific wave band, filtering out interference signals outside the specific wave band, and transmitting the filtered signals to the power detection unit; the power detection unit is used for detecting the power of the filtered microwave signal, outputting corresponding analog voltage and transmitting the analog voltage to the analog-to-digital (AD) conversion module.
In an embodiment of the present invention, the detection apparatus further includes: the receiving antenna couples the microwave signal to the low noise amplifier unit through the first capacitor, and the signal amplified by the low noise amplifier is coupled to the filter unit through the second capacitor.
In an embodiment of the present invention, the detection apparatus further includes: the power module is used for supplying power to the signal conditioning circuit, the analog-to-digital (AD) conversion module and the processor.
In an embodiment of the invention, the processor comprises at least one of: a field programmable gate array FPGA-based microprocessor and an advanced reduced instruction system processor ARM-based microprocessor.
In an embodiment of the present invention, the communication module includes: USB communication module.
In an embodiment of the present invention, the receiving antenna includes at least one of: omni-directional antennas, directional antennas.
In an embodiment of the present invention, the detection apparatus includes: the first interface is used for receiving the transmitted electric energy of the mobile power supply.
In an embodiment of the present invention, the receiving antenna includes: and the second interface is used for receiving the microwave signal transmitted by the road side unit RSU.
Through the utility model discloses, above-mentioned check out test set includes: the receiving antenna is used for receiving microwave signals of the RSU and transmitting the microwave signals to the signal processing circuit; the signal processing circuit is connected with the receiving antenna in series and is used for preprocessing the microwave signal, converting the preprocessed microwave signal into a digital signal and transmitting the digital signal to the processor; the treater, with signal processing circuit establishes ties, be used for with digital signal sends to the host computer through communication module, so that the host computer is confirmed according to received digital signal the single-point field intensity adopts above-mentioned technical scheme, provides a detection equipment that the cost is lower, has solved relevant technology, in ETC application scene, adopts the spectrometer to carry out the process that detects to single-point field intensity, and the cost is very high, and the spectrometer carries inconvenient problem, and then just can confirm the single-point field intensity through lower cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a block diagram of an alternative single-point field strength detection apparatus according to an embodiment of the present invention;
fig. 2 is a block diagram of a signal processing circuit of a detection device for selectable single-point field strength according to an embodiment of the present invention;
fig. 3 is a block diagram of a signal conditioning circuit of an alternative single-point field strength detection device according to an embodiment of the present invention;
fig. 4 is a block diagram of an overall structure of an alternative single-point field intensity detection device according to an embodiment of the present invention;
fig. 5 is a block diagram of an ETC roadside unit single-point field strength detection apparatus according to an alternative embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Fig. 1 is a block diagram of a detection apparatus for detecting field intensity of selectable single-point fields according to an embodiment of the present invention, as shown in fig. 1, including:
the receiving antenna 10 is used for receiving microwave signals of the road side unit RSU and transmitting the microwave signals to the signal processing circuit;
the signal processing circuit 12 is connected in series with the receiving antenna and is used for preprocessing the microwave signal, converting the preprocessed microwave signal into a digital signal and transmitting the digital signal to the processor;
and the processor 14 is connected with the signal processing circuit in series and is used for sending the digital signal to an upper computer through a communication module so that the upper computer determines the single-point field intensity according to the received digital signal.
Through the technical scheme, the detection equipment comprises: the receiving antenna is used for receiving microwave signals of the RSU and transmitting the microwave signals to the signal processing circuit; the signal processing circuit is connected with the receiving antenna in series and is used for preprocessing the microwave signal, converting the preprocessed microwave signal into a digital signal and transmitting the digital signal to the processor; the treater, with signal processing circuit establishes ties, be used for with digital signal sends to the host computer through communication module, so that the host computer is confirmed according to received digital signal the single-point field intensity adopts above-mentioned technical scheme, provides a detection equipment that the cost is lower, has solved relevant technology, in ETC application scene, adopts the spectrometer to carry out the process that detects to single-point field intensity, and the cost is very high, and the spectrometer carries inconvenient problem, and then just can confirm the single-point field intensity through lower cost.
Fig. 2 is a block diagram of a signal processing circuit of a detection device for selectable single-point field strength according to an embodiment of the present invention, and as shown in fig. 2, the signal processing circuit 12 includes: the signal conditioning circuit 120 and the analog-to-digital AD conversion module 122, wherein the signal conditioning circuit is configured to perform at least the following processing on the microwave signal: amplifying, filtering and power detecting, and sending the processed analog voltage to the analog-to-digital (AD) conversion module; the analog-to-digital (AD) conversion module is connected with the signal conditioning circuit in series and used for converting the received processed microwave signal into a digital signal.
Fig. 3 is a block diagram of a signal conditioning circuit of a detection apparatus for selectable single-point field strength according to an embodiment of the present invention, as shown in fig. 3, the signal conditioning circuit 120 includes: the low noise amplifier comprises a low noise amplifier unit 1202, a filter unit 1204 and a power detection unit 1206, wherein the low noise amplifier unit, the filter unit and the power detection unit are sequentially connected in series, and the low noise amplifier unit is used for amplifying the microwave signal transmitted by the receiving antenna and transmitting the amplified microwave signal to the filter unit; the filter unit is used for filtering the microwave signals in a specific wave band, filtering out interference signals outside the specific wave band, and transmitting the filtered signals to the power detection unit; the power detection unit is used for detecting the power of the filtered microwave signal, outputting corresponding analog voltage and transmitting the analog voltage to the analog-to-digital (AD) conversion module.
The detection apparatus further includes: a first capacitor 16 and a second capacitor 18, wherein the receiving antenna couples the microwave signal to the low noise amplifier unit through the first capacitor, and the signal amplified by the low noise amplifier unit is coupled to the filter unit through the second capacitor.
In the embodiment of the present invention, fig. 4 is a block diagram of an overall structure of a detection apparatus for detecting a selectable single-point field strength according to the embodiment of the present invention, as shown in fig. 4, including:
as shown in fig. 4, the detection apparatus further includes: a power module 20, the power module is used for doing the signal conditioning circuit, the analog-to-digital AD conversion module, the processor, the communication module supplies power.
In an embodiment of the invention, the processor comprises at least one of: a field programmable gate array FPGA-based microprocessor and an advanced reduced instruction system processor ARM-based microprocessor.
In an embodiment of the present invention, the communication module includes: USB communication module.
In an embodiment of the present invention, the receiving antenna includes at least one of: omni-directional antennas, directional antennas.
In an embodiment of the present invention, the detection apparatus includes: the first interface is used for receiving the transmitted electric energy of the mobile power supply.
In an embodiment of the present invention, the receiving antenna includes: and the second interface is used for receiving the microwave signal transmitted by the road side unit RSU.
Through the utility model discloses above-mentioned embodiment's technical scheme provides a check out test set to ETC trackside unit single-point field intensity, specifically includes: the device comprises a receiving antenna, a signal conditioning circuit, an AD conversion module, a microprocessor, a USB communication module and a power supply module. The receiving antenna is connected with the signal conditioning circuit, the signal conditioning circuit is connected with the AD conversion module, the AD conversion module is connected with the microprocessor, the microprocessor is connected with the USB communication module, and the power supply module is connected with the signal conditioning circuit, the AD conversion module, the microprocessor and the USB communication module. The receiving antenna transmits the received microwave signals transmitted by the ETC road side unit to the signal conditioning circuit; the signal conditioning circuit amplifies and filters the microwave signal and detects the power, and transmits the analog voltage signal obtained after processing to the AD conversion module; the AD conversion module converts the analog voltage into a digital signal and transmits the digital signal to the microprocessor; microprocessor acquires and stores the back with the digital signal that the AD conversion obtained and transmits for the host computer through USB communication module and do further processing and show, and power module is signal conditioning circuit, AD conversion module, microprocessor and USB communication module power supply, the embodiment of the utility model provides a realized the effective detection to the single-point field intensity of RSU antenna among the ETC transaction system, provide powerful appurtenance for RSU equipment debugging and maintenance and RSU and OBU transaction system development.
The following explains the determination process of the above prompting method with an optional embodiment, but is not intended to limit the technical solution of the embodiment of the present invention.
The utility model discloses an optional embodiment provides a to ETC trackside unit single-point field intensity detection equipment, the functional block diagram of this equipment is as shown in FIG. 5, specifically can include: the device comprises a receiving antenna, a signal conditioning circuit, an AD conversion module, a microprocessor, a USB communication module and a power supply module. The receiving antenna with signal conditioning circuit connects, signal conditioning circuit with AD conversion module connects, AD conversion module with microprocessor connects, microprocessor with USB communication module connects, power module with signal conditioning circuit AD conversion module microprocessor USB communication module connects.
The receiving antenna transmits the received microwave signal transmitted by the RSU in the ETC transaction system to the signal conditioning circuit; the signal conditioning circuit amplifies, filters and detects the power of the microwave signal, and transmits the analog voltage obtained after processing to an AD conversion module; the AD conversion module carries out analog-to-digital conversion on the analog voltage and transmits an obtained digital signal to the microprocessor; the microprocessor collects and stores the AD-converted digital signals, and uploads the AD-converted digital signals to the upper computer through the USB communication module, and then the upper computer determines the single-point field intensity of the road side unit through the digital signals.
It should be noted that, the receiving antenna uses an omnidirectional antenna, which is convenient for testing and reduces the sensitivity of the monitoring device to the placement position and angle;
the signal conditioning circuit includes: the low-noise amplifier comprises a low-noise amplifier unit, a filter unit and a power detection unit, wherein the filter unit is connected with the low-noise amplifier unit and the power detection unit in series.
Specifically, the low-noise amplifier unit amplifies the microwave signal transmitted from the receiving antenna, and transmits the amplified microwave signal to the filter unit; the filter unit filters the microwave signals in a specific wave band, filters out interference signals outside the specific wave band, and transmits the filtered signals to the power detection unit; the power detection unit detects the power of the filtered microwave signal, outputs corresponding analog voltage and transmits the analog voltage to the AD conversion module; the receiving antenna couples the microwave signal to the low noise amplifier through a capacitor, and the amplified signal is coupled to the filter unit through a capacitor again.
The microprocessor uses a microprocessor chip of an ARM architecture;
the power module supplies power for the signal conditioning circuit, the AD conversion module, the microprocessor module and the USB communication module.
The single-point field intensity detection equipment can be powered by a mobile power supply, and portable testing can be realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A device for detecting single-point field strength, comprising:
the receiving antenna is used for receiving microwave signals of the RSU and transmitting the microwave signals to the signal processing circuit;
the signal processing circuit is connected with the receiving antenna in series and is used for preprocessing the microwave signal, converting the preprocessed microwave signal into a digital signal and transmitting the digital signal to the processor;
and the processor is connected with the signal processing circuit in series and is used for sending the digital signal to an upper computer through a communication module so that the upper computer determines the single-point field intensity according to the received digital signal.
2. The detection device of claim 1, wherein the signal processing circuit comprises: a signal conditioning circuit, an analog-to-digital (AD) conversion module, wherein,
the signal conditioning circuit is used for performing at least the following processing on the microwave signal: amplifying, filtering and power detecting, and sending the processed analog voltage to the analog-to-digital (AD) conversion module;
the analog-to-digital (AD) conversion module is connected with the signal conditioning circuit in series and used for converting the received processed microwave signal into a digital signal.
3. The detection device of claim 2, wherein the signal conditioning circuit comprises: a low noise amplifier unit, a filter unit and a power detection unit, wherein the low noise amplifier unit, the filter unit and the power detection unit are connected in series in sequence,
the low-noise amplifier unit is used for amplifying the microwave signal transmitted by the receiving antenna and transmitting the amplified microwave signal to the filter unit;
the filter unit is used for filtering the microwave signals in a specific wave band, filtering out interference signals outside the specific wave band, and transmitting the filtered signals to the power detection unit;
the power detection unit is used for detecting the power of the filtered microwave signal, outputting corresponding analog voltage and transmitting the analog voltage to the analog-to-digital (AD) conversion module.
4. The detection apparatus according to claim 3, characterized in that the detection apparatus further comprises: the receiving antenna couples the microwave signal to the low noise amplifier unit through the first capacitor, and the signal amplified by the low noise amplifier is coupled to the filter unit through the second capacitor.
5. The detection apparatus according to claim 2, characterized in that the detection apparatus further comprises: the power module is used for supplying power to the signal conditioning circuit, the analog-to-digital (AD) conversion module and the processor.
6. The detection apparatus of claim 1, wherein the processor comprises at least one of:
a field programmable gate array FPGA-based microprocessor and an advanced reduced instruction system processor ARM-based microprocessor.
7. The detection device according to any one of claims 1 to 6, wherein the communication module comprises: USB communication module.
8. The detection device according to any one of claims 1 to 6, characterized in that the receiving antenna comprises at least one of: omni-directional antennas, directional antennas.
9. The detection apparatus according to any one of claims 1 to 6, characterized in that the detection apparatus comprises: the first interface is used for receiving the transmitted electric energy of the mobile power supply.
10. The detection device according to any one of claims 1 to 6, characterized in that the receiving antenna comprises: and the second interface is used for receiving the microwave signal transmitted by the road side unit RSU.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922096015.3U CN211348439U (en) | 2019-11-28 | 2019-11-28 | Detection equipment for single-point field intensity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922096015.3U CN211348439U (en) | 2019-11-28 | 2019-11-28 | Detection equipment for single-point field intensity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999567A (en) * | 2020-08-28 | 2020-11-27 | 上海商米科技集团股份有限公司 | Radiation emission RE test equipment and test method |
| 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 |
| CN112583443A (en) * | 2020-12-09 | 2021-03-30 | 上海旷通科技有限公司 | Antenna adjusting method for wireless client front-end equipment and wireless client front-end equipment |
| CN113092881A (en) * | 2021-03-24 | 2021-07-09 | 北京卓越信通电子股份有限公司 | Equipment for detecting physical characteristics of highway RSU antenna |
| CN114325154A (en) * | 2021-11-19 | 2022-04-12 | 贵州航天计量测试技术研究所 | X-waveband high-power microwave signal processing device and system |
-
2019
- 2019-11-28 CN CN201922096015.3U patent/CN211348439U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111999567A (en) * | 2020-08-28 | 2020-11-27 | 上海商米科技集团股份有限公司 | Radiation emission RE test equipment and test method |
| CN111999567B (en) * | 2020-08-28 | 2023-03-24 | 上海商米科技集团股份有限公司 | Radiation emission RE test equipment and test method |
| 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 |
| CN112583443A (en) * | 2020-12-09 | 2021-03-30 | 上海旷通科技有限公司 | Antenna adjusting method for wireless client front-end equipment and wireless client front-end equipment |
| CN113092881A (en) * | 2021-03-24 | 2021-07-09 | 北京卓越信通电子股份有限公司 | Equipment for detecting physical characteristics of highway RSU antenna |
| CN114325154A (en) * | 2021-11-19 | 2022-04-12 | 贵州航天计量测试技术研究所 | X-waveband high-power microwave signal processing device and system |
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