RSU mobile locking detection device

Abstract

The utility model discloses an RSU mobile locking detection device, and relates to the technical field of expressway detection. The device comprises a decoding part, a detection part and an upper part, the decoding part comprises a decoding antenna, a frequency reduction module, a power adjustment module, a digital-to-analog conversion module, a decoding module, a control module and a communication module; wherein the communication module is used for communication between the decoding part and the detection part as well as between the decoding part and the upper part; the detection part comprises a detection antenna, a frequency reduction module, a detection module, a digital-to-analog conversion module, a data processing module, a data storage module, a control module and a communication module; wherein the control module receives an instruction sent by the upper part through the communication module; and the upper part comprises a communication module, a control module, a calculation module and a display module. According to the utility model, the RSU detection efficiency can be improved, and the management of RSU detection results is facilitated. And the operation can be carried out under the condition that road closure is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of highway detection, in particular to a RSU mobile locking detection device. Background Art

[0002] With the continuous construction of expressways, the Electronic Toll Collection (ETC) system based on the dedicated short-range communication standard has received widespread attention and has gradually become a hot spot for application and research in the field of intelligent transportation. Since the system is not yet perfect, many problems will occur during use, so the system is repaired, including the repair of the road side unit. The maintenance of the road side unit (RSU) is currently only in the manual inspection stage. Technicians need to block the road and use professional instruments to check one by one. It is not only time-consuming and labor-intensive, but also affects normal road driving. Utility Model Content

[0003] The purpose of the utility model is to provide a mobile RSU lock detection device to solve the difficulty of detecting RSU on the highway, and the technology is relatively technical. A set of detection devices is to be developed, which can be installed on the vehicle to detect RSU and perform lock detection on a specific RSU.

[0004] To achieve the above-mentioned object, the utility model provides the following technical solutions: a device for mobile lock detection of RSU, comprising a decoding part, a detection part and a host part;

[0005] The decoding part includes a decoding antenna, a frequency reduction module, a power adjustment module, a digital-to-analog conversion module, a decoding module, a control module and a communication module; wherein the communication module is used for the decoding part to communicate with the detection part and the upper part;

[0006] The detection part includes a detection antenna, a frequency reduction module, a detection module, a digital-to-analog conversion module, a data processing module, a data storage module, a control module, and a communication module; wherein the control module receives instructions sent by the upper part through the communication module;

[0007] The upper part includes a communication module, a control module, a calculation module and a display module.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The RSU mobile lock detection device can improve the detection efficiency of RSU and facilitate the management of RSU detection results. It can be operated without closing the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the RSU mobile lock detection device of the utility model;

[0011] Figure 2 - Figure 5 is a schematic diagram of the structure of the judgment result of the judgment unit of the utility model. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0014] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0015] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0016] like Figure 1 As shown, the utility model provides a technical solution: a device for RSU mobile lock detection, including a decoding part, a detection part and a host part;

[0017] The decoding part includes a decoding antenna, a frequency reduction module, a power adjustment module, a digital-to-analog conversion module, a decoding module, a control module and a communication module; wherein the communication module is used for the decoding part to communicate with the detection part and the upper part;

[0018] Optionally, the decoding antenna in the decoding part is communicatively connected to the frequency reduction module, the frequency reduction module is communicatively connected to the power adjustment module, the power adjustment module is communicatively connected to the digital-to-analog conversion module, the digital-to-analog conversion module is communicatively connected to the decoding module, the decoding module is communicatively connected to the control module, and the control module is communicatively connected to the communication module.

[0019] The decoding antenna is a radio frequency antenna that can receive 5.8GHz. The down-conversion module consists of a local oscillator, a mixer and some amplifier filters, which can convert 5G signals into 5M signals for easy digital-to-analog conversion. The power adjustment module adjusts the different powers received to the same power for easy data processing. The digital-to-analog conversion module uses the AD9226 chip to convert the 5M analog signal into a digital signal for data analysis. The decoding module is a module that converts the digital waveform with beaconID information into actual numbers using the FPGA chip. The control module controls whether the synchronization signal is sent to the detection part. When the set beaconID information is consistent with the received information, a synchronization signal is sent. The function of the communication module is to enable the decoding part to communicate with the detection part and the upper part on the intranet.

[0020] As an example, the RSU signal is detected by the decoding antenna; the RSU signal is down-converted by the frequency reduction module to obtain the down-converted RSU signal; the down-converted RSU signal is amplitude modulated by the power adjustment module to obtain the amplitude modulated RSU signal; the amplitude modulated RSU signal is converted by the digital-to-analog conversion module to obtain a digital waveform; the digital waveform is decoded by the decoding module to obtain a decoded beacon ID.

[0021] Optionally, the control module in the decoding part includes a judgment unit; wherein, the control module in the decoding part determines whether to control the communication module in the decoding part to send a synchronization signal to the detection part according to the judgment result of the judgment unit; the judgment unit is used to determine whether the acquired preset beacon ID is the same as the decoded beacon ID obtained after decoding by the decoding module in the decoding part according to the acquired beacon ID permission bit.

[0022] Optionally, the communication module in the decoding part is communicatively connected with the data storage module in the detection part.

[0023] As an example, as an example, in the control module in the decoding part, the beacon ID permission bit is 0, indicating that the RSU signal of any beaconID is not detected; the beacon ID permission bit is 1, indicating that the RSU signal of the set beaconID is detected; the beacon ID permission bit is 2, indicating that the RSU signal of any beaconID is detected; wherein, the beacon ID is beaconID.

[0024] The beaconID information received by the decoding part is compared with the manually set beaconID. If the result passes, a synchronization signal is sent from the decoding part to the detection part, and the detection part stores the data according to the synchronization signal.

[0025] Figure 2-Figure 5 Schematic diagram showing several judgment results;

[0026] like Figure 2 As shown, in response to the obtained beacon ID enabling bit being 1, the obtained preset beacon ID is compared with the decoded beacon ID through the judgment unit; in response to the preset beacon ID being the same as the decoded beacon ID, the control module controls the communication module to send a synchronization signal to the detection part; and the data storage module in the detection part stores the synchronization signal.

[0027] like Figure 3 As shown, in response to the preset beacon ID being different from the decoded beacon ID, the control module controls the communication module not to send the synchronization signal to the detection part and not to generate a field strength array.

[0028] like Figure 4 As shown, in response to the acquired beacon ID permission bit being 0, the judgment unit does not compare the preset beacon ID with the decoded beacon ID, and does not generate a field strength array.

[0029] like Figure 5 As shown, in response to the acquired beacon ID permission bit being 2, the acquired preset beacon ID and the decoded beacon ID are passed through the judgment unit; the control module controls the communication module to send a synchronization signal to the detection part; and the data storage module in the detection part stores the synchronization signal.

[0030] The detection part includes a detection antenna, a frequency reduction module, a detection module, a digital-to-analog conversion module, a data processing module, a data storage module, a control module, and a communication module; wherein the control module receives instructions sent by the upper part through the communication module;

[0031] Optionally, the detection antenna in the detection part is communicatively connected to the frequency reduction module, the frequency reduction module is communicatively connected to the detection module, the detection module is communicatively connected to the digital-to-analog conversion module, the digital-to-analog conversion module is communicatively connected to the data processing module, the data processing module is communicatively connected to the data storage module, the data storage module is communicatively connected to the control module, and the control module is communicatively connected to the communication module.

[0032] The detection antenna is a radio frequency antenna that can receive 5.8GHz. The frequency reduction module consists of a local oscillator, a mixer and some amplifier filters, which can convert 5G signals into 5M signals for easy digital-to-analog conversion. The detection module can convert a sine wave into a straight wave with voltage for easy calculation. The digital-to-analog conversion module uses the AD9226 chip to convert the 5M analog signal into a digital signal for data analysis. The data processing module converts the detected digital waveform that has been converted into a set of arrays and stores it in the data storage module. The control module retrieves the data from the data storage module through the instructions of the upper part received by the communication module.

[0033] The upper part includes a communication module, a control module, a calculation module and a display module.

[0034] Optionally, the communication module in the upper part is communicatively connected to the control module and the calculation module, and the calculation module is communicatively connected to the display module.

[0035] The communication module is responsible for intranet communication with the communication modules of the decoding part and the detection part.

[0036] Optionally, the main contents of the communication of the communication module in the upper part include: downlink instructions, uplink return signaling and uplink data export.

[0037] Optionally, the control module in the upper part is used to control the decoding part and the detection part through the communication module in the upper part.

[0038] The function of the control module is to control the decoding and detection part through the communication module by personnel operation.

[0039] Optionally, the calculation module in the upper part is used to calculate the field strength array sent by the communication module in the detection part to obtain the field strength value, and send the field strength value to the display module in the upper part.

[0040] The calculation module is mainly used for the detection part. The uploaded array is calculated to obtain the field strength value.

[0041] Optionally, the display module in the upper part is used to display all field strength values ​​of different positions of the set RSU.

[0042] The display module displays all field strength values ​​of different positions of the set RSU, and can also display other historical detection values ​​of different RSUs.

[0043] As an example, the artificially set beacon ID is artificially screened by decoding all the current IDs received by the decoding part, and all the RSUs of the road section to be tested can also be entered in advance.

[0044] First, before the formal test, the RSU information is entered. The entry method is: before the RSU is installed, read the information or drive on the road section to be tested to obtain the RSU information of the entire road section.

[0045] During the formal detection, the detection device passes the RSU device from far to near, and the decoding antenna and the detection antenna detect the RSU signal at the same time. Since the signal has not been decoded and judged at this time (the beaconID permission bit is set to 0 by default), there is no synchronization signal sent from the decoding part, and the signals obtained by the detection part are not stored in the data storage module. The signal of the decoding part is down-converted, modulated, and converted to digital to analog, and the 5M digital waveform with beaconID information is transmitted to the decoding part in the FPGA to obtain the beaconID. The current beaconID is judged against the latest setting. If it passes, the synchronization signal is output. After the detection part receives the synchronization signal, the data is stored. In addition to the waveform data, the current beaconID information is also stored.

[0046] When the upper part needs the field strength detection map of the RSU, it will send a command to retrieve the stored content of the detection part. After the data group is received by the calculation module of the upper part, it will calculate and obtain the current field strength value.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting mobile locking of RSU, characterized in that: include: Decoding part, detection part and superposition part; The decoding part includes a decoding antenna, a frequency reduction module, a power adjustment module, a digital-to-analog conversion module, a decoding module, a control module and a communication module; wherein the communication module is used for the decoding part to communicate with the detection part and the upper part; The detection part includes a detection antenna, a frequency reduction module, a detection module, a digital-to-analog conversion module, a data processing module, a data storage module, a control module, and a communication module; wherein the control module receives instructions sent by the upper part through the communication module; The upper part includes a communication module, a control module, a calculation module and a display module.

2. The RSU mobile locking detection device according to claim 1 is characterized in that: The decoding antenna in the decoding part is communicatively connected to the frequency reduction module, the frequency reduction module is communicatively connected to the power adjustment module, the power adjustment module is communicatively connected to the digital-to-analog conversion module, the digital-to-analog conversion module is communicatively connected to the decoding module, the decoding module is communicatively connected to the control module, and the control module is communicatively connected to the communication module.

3. The RSU mobile locking detection device according to claim 1, characterized in that: The detection antenna in the detection part is communicatively connected with the frequency reduction module, the frequency reduction module is communicatively connected with the detection module, the detection module is communicatively connected with the digital-to-analog conversion module, the digital-to-analog conversion module is communicatively connected with the data processing module, the data processing module is communicatively connected with the data storage module, the data storage module is communicatively connected with the control module, and the control module is communicatively connected with the communication module.

4. The RSU mobile locking detection device according to claim 1, characterized in that: The communication module in the upper part is communicatively connected with the control module and the calculation module, and the calculation module is communicatively connected with the display module.

5. The RSU mobile locking detection device according to claim 1, characterized in that: The control module in the decoding part includes a judgment unit; wherein the control module in the decoding part determines whether to control the communication module in the decoding part to send a synchronization signal to the detection part according to the judgment result of the judgment unit; the judgment unit is used to determine whether the acquired preset beacon ID is the same as the decoded beacon ID obtained after decoding by the decoding module in the decoding part according to the acquired beacon ID permission bit.

6. The RSU mobile locking detection device according to claim 1, characterized in that: The communication module in the decoding part is communicatively connected with the data storage module in the detection part.

7. The RSU mobile locking detection device according to claim 1, characterized in that: The main contents of the communication of the communication module in the upper part include: downlink instructions, uplink return signaling and uplink data export.

8. The RSU mobile locking detection device according to claim 1, characterized in that: The control module in the upper part is used to control the decoding part and the detection part through the communication module in the upper part.

9. The RSU mobile locking detection device according to claim 1, characterized in that: The calculation module in the upper part is used to calculate the field strength array sent by the communication module in the detection part to obtain the field strength value, and send the field strength value to the display module in the upper part.

10. The RSU mobile locking detection device according to claim 1, characterized in that: The display module in the upper part is used to display all field strength values ​​of different positions of the set RSU.

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