Efficient recognition device for expressway RSU

Abstract

The utility model belongs to the technical field of RSUs, and particularly relates to an efficient recognition device for an expressway RSU, which comprises a shell, a mainboard and a cover plate, the mainboard comprises a CTRL controller, an FPGA core board and a PSAM module, the inner wall of the shell is fixedly connected with a first mounting plate, the inner wall of the shell is fixedly connected with a second mounting plate, and the second mounting plate is fixedly connected with a third mounting plate. A radio frequency board is installed on the side face of the second installation board. The radio frequency board comprises a radio frequency transmitting module, a numerical control attenuation module, a power amplification module, a receiving and transmitting switch module, a radio frequency receiving module and an ADC module. The radio frequency receiving module receives radio frequency signals, converts the radio frequency signals into intermediate frequency signals and transmits the intermediate frequency signals to the FPGA core board for decoding operation, through the arrangement of the phased array antenna board, beam forming is carried out in a digital mode, full-area real-time scanning can be achieved, and multi-target simultaneous positioning is achieved, so that electronic equipment scans a phased array to achieve multi-target positioning. The target can be scanned and tracked in real time according to the positioning result, so that the target is always located at the strongest signal position, and the communication stability can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of RSU, specifically relates to a high -efficient identification device for highway RSU. BACKGROUND

[0002] Electronic toll collection system based on dedicated short range communication (DSRC) technology, with the advantages of non-cash transaction, non-stop fast through, simplify the charging process, reduce noise and automobile exhaust emission, etc. ETC system is favored by people. With advanced network technology and DSRC technology as the guarantee, the communication link between the on-board unit (OBU) and the road side unit (RSU) is formed by using DSRC technology to complete the vehicle pass information exchange, and the vehicle pass fee is calculated by the lane toll machine, the corresponding fee is deducted from the user account, the non-cash payment is realized, and the whole process of automatic charging is completed.

[0003] In the application of ETC technology, RSU is usually installed on the highway, and the target of transaction is the transaction medium in the vehicle, due to the complexity of the scene, the RSU between adjacent lanes exists mutual interference problem, which will weaken and distort the signal of the transaction medium, and has certain influence on the transaction success rate. UTILITY MODEL CONTENT

[0004] In order to solve the problems in the above background technology, the utility model provides a kind of high-efficiency identification device for highway RSU, solve the problem of mutual interference between the RSU of adjacent lane.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency identification device for highway RSU, including shell, mainboard and cover plate, the mainboard includes CTRL controller, FPGA core board and PSAM module, the inner wall of the shell is fixedly connected with mounting plate one, the inner wall of the shell is fixedly connected with mounting plate two, the side of the mounting plate two is installed with radio frequency board, the radio frequency board includes radio frequency transmitting module, numerical control attenuation module, power amplifier module, transceiver switch module, radio frequency receiving module and ADC module, the side of the mounting plate two is embedded with phased array antenna board, the inner wall of the shell is installed with satellite receiving module, the inner wall of the shell is installed with satellite time service device, the bottom of the shell is installed with wiring module.

[0006] Preferably, the inside of the shell is embedded with sealing ring.

[0007] Preferably, the inner wall of the shell is fixedly connected with limiting column, and the inside of the limiting column is screw connected with screw one.

[0008] Preferably, the interior of the mounting plate one is screwed with screw two, and the screw two penetrates the mainboard, the interior of the mounting plate two is screwed with screw three, and the screw three penetrates the radio frequency board.

[0009] Preferably, the bottom of the shell is provided with a rectangular notch for installing the wiring module.

[0010] Preferably, the surface of the mainboard is provided with a power supply.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1、The high -efficient identification device for highway RSU, through the cooperation of mainboard cooperation radio frequency board, it is line row connection between them, radio frequency transmitting module receives the FM signal of FPGA core board output, and signal modulation is carried out to the prescribed frequency and is exported, through numerical control attenuator module, can control sending power, power amplifier module amplifies the sending signal, radio frequency receiving module receives and converts radio frequency signal into intermediate frequency signal, transmission to FPGA core board carries out decoding operation, through the setting of phased array antenna board, it adopts digital way and carries out beam forming, can full area real -time scanning, realizes multiple target positioning simultaneously, so that the electronic equipment can scan the phased array through scanning, can carry out real -time scanning tracking to target according to the positioning result, make target always be in the strongest signal position, can improve communication stability.

[0013] 2、The high -efficient identification device for highway RSU, through the radio frequency board is placed below the phased array antenna board, can be advantageous radio frequency board is cooled through mounting plate two and shell, improve product reliability, through satellite receiving module cooperation satellite time service device, this device can be converted into the standard time format suitable for network transmission through the satellite time signal received by satellite receiving module, and transmit to satellite time service device and obtain the same time, so as to ensure the frequency of the receiving antenna of this device, make time consistent, so that the device is set in adjacent lane, and the beam of communication area will have overlapping part and form mutual inhibition, offset effect, so as to solve the problem of adjacent lane interference, through the setting of PSAM module, this device can reach support high security electronic wallet transaction mode. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings for the embodiment to make a brief introduction, obviously, the drawings in the following description only some embodiments of the utility model, together with the embodiments of the utility model for explaining the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0015] Figure 1 It is the complete structure schematic diagram of the utility model;

[0016] Figure 2 The explosion Figure One ;

[0017] Figure 3 The explosion Figure Two ;

[0018] Figure 4 The sectional view of the utility model;

[0019] Figure 5 The internal structure diagram of the utility model.

[0020] In the figure: 1, shell; 2, mainboard; 201, CTRL controller; 202, FPGA core board; 203, PSAM module; 204, power supply; 3, cover plate; 4, mounting plate one; 5, mounting plate two; 6, radio frequency board; 601, radio frequency transmitting module; 602, numerical control attenuation module; 603, power amplification module; 604, transceiver switch module; 605, radio frequency receiving module; 606, ADC module; 7, phased array antenna board; 8, satellite receiving module; 9, satellite time service device; 10, wiring module; 11, sealing ring; 12, limiting column; 13, screw one; 14, screw two; 15, screw three; 16, rectangular notch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides the following technical scheme: a kind of high-efficiency identification device for highway RSU, including shell 1, mainboard 2 and cover plate 3, mainboard 2 includes CTRL controller 201, FPGA core board 202 and PSAM module 203, the inner wall of shell 1 is fixedly connected with mounting plate one 4, the inner wall of shell 1 is fixedly connected with mounting plate two 5, radio frequency board 6 is installed in the side of mounting plate two 5, radio frequency board 6 includes 601, numerical control attenuation module 602, power amplification module 603, transceiver switch module 604, radio frequency receiving module 605 and ADC module 606, the side of mounting plate two 5 is embedded with phased array antenna board 7, satellite receiving module 8 is installed in the inner wall of shell 1, satellite time service device 9 is installed in the inner wall of shell 1, wiring module 10 is installed in the bottom of shell 1.

[0023] In this embodiment, through the cooperation of the main board 2 and the radio frequency board 6, they are connected by wire, the radio frequency transmitting module 601 receives the FM0 signal output by the FPGA core board 202, and modulates the signal to a specified frequency for output, through the digital attenuator module 602, the sending power can be controlled, the power amplifier module 603 amplifies the sending signal, the radio frequency receiving module 605 receives and converts the radio frequency signal into an intermediate frequency signal, which is transmitted to the FPGA core board 202 for decoding operation, through the setting of the phased array antenna board 7, it adopts a digital way to form a beam, which can scan the whole area in real time and realize multi-target positioning at the same time, so that the electronic device can scan and track the target in real time according to the positioning result, so that the target is always in the strongest signal position, which can improve the communication stability, through the satellite receiving module 8 cooperating with the satellite time service device 9, the device can convert the satellite time signal received by the satellite receiving module 8 into a standard time format suitable for network transmission, and transmit it to the satellite time service device 9 to obtain the same time, so as to ensure the frequency of the receiving and transmitting antenna of the device, so that the time is consistent, so that when the device is set in the adjacent lane, the beams of the communication area will have overlapping parts to form mutual inhibition and offset effect, thereby solving the problem of adjacent lane interference, through the setting of the PSAM module 203, the device can support high security electronic wallet transaction mode.

[0024] Specifically, the inside of the shell 1 is embedded with a sealing ring 11, and the sealing ring 11 is provided to improve the sealing performance between the shell 1 and the cover plate 3.

[0025] Specifically, the inner wall of the shell 1 is fixedly connected with a limiting column 12, and the limiting column 12 is threadedly connected with a screw 13 inside, and the limiting column 12 is provided to limit the installation of the main board 2 and avoid shaking and instability, and the screw 13 is threadedly installed into the limiting column 12 through the cover plate 3, so as to fix the cover plate 3 and facilitate disassembly.

[0026] Specifically, the inside of the mounting plate one 4 is threadedly connected with a screw two 14, and the screw two 14 penetrates the main board 2, and the screw two 14 can further fix the main board 2 and improve its stability, and the inside of the mounting plate two 5 is threadedly connected with a screw three 15, and the screw three 15 penetrates the radio frequency board 6, and the screw three 15 can fix the radio frequency board 6 on the mounting plate two 5 and improve its stability.

[0027] Specifically, the bottom of the shell 1 is provided with a rectangular notch 16 for installing the wiring module 10, and the rectangular notch 16 facilitates the installation of the wiring module 10 and reserves space for installation.

[0028] Specifically, the surface of the mainboard 2 is mounted with a power supply 204, which can supply power to each component on the mainboard 2 and the radio frequency board 6.

[0029] The working principle or use process of the utility model is: through cooperation of the mainboard 2 and the radio frequency board 6, they are connected by wire, the FPGA core board 202 is mainly responsible for the control of all peripherals and external communication with the CTRL controller 201, is responsible for running the logic and function module software program of the whole device, the radio frequency transmitting module 601 receives the FM0 signal output by the FPGA core board 202, and modulates the signal to a specified frequency for output, through the digital control attenuator module 602, the sending power can be controlled, the power amplifier module 603 amplifies the sending signal, the transceiver switch module 604 can switch the receiving link and the transmitting link, the radio frequency receiving module 605 receives and converts the radio frequency signal into an intermediate frequency signal, the signal is converted into a digital signal by the ADC module 606 and transmitted to the FPGA core board 202 for decoding operation, through the setting of the phased array antenna board 7, it adopts a digital method to form a beam, can scan the whole area in real time, realizes the positioning of multiple targets at the same time, so that the electronic device can scan the target in real time through the scanning of the phased array, according to the positioning result, makes the target always in the strongest signal position, can improve the communication stability, through cooperation of the satellite receiving module 8 and the satellite time service device 9, the device can convert the satellite time signal received by the satellite receiving module 8 into a standard time format suitable for network transmission, and transmit it to the satellite time service device 9 to obtain the same time, so as to ensure the frequency of the receiving and transmitting antenna of the device, so that the time is consistent, so that when the device is set in the adjacent lane, the beams of the communication area will have an overlapping part to form mutual inhibition and offset effect, so as to solve the problem of adjacent lane interference, through the setting of the PSAM module 203, the device can support high security electronic wallet transaction mode.

[0030] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, the description selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-efficiency identification device for highway RSU, comprising a shell (1), a mainboard (2) and a cover plate (3), characterized in that: The mainboard (2) comprises a CTRL controller (201), an FPGA core board (202) and a PSAM module (203), the inner wall of the shell (1) is fixedly connected with a mounting plate one (4), the inner wall of the shell (1) is fixedly connected with a mounting plate two (5), the side of the mounting plate two (5) is mounted with a radio frequency board (6), the radio frequency board (6) comprises a radio frequency transmitting module (601), a numerical control attenuation module (602), a power amplification module (603), a transceiving switch module (604), a radio frequency receiving module (605) and an ADC module (606), the side of the mounting plate two (5) is embedded with a phased array antenna board (7), the inner wall of the shell (1) is mounted with a satellite receiving module (8), the inner wall of the shell (1) is mounted with a satellite time service device (9), and the bottom of the shell (1) is mounted with a wiring module (10).

2. The high-efficiency identification device for highway RSUs according to claim 1, characterized in that: The inside of the shell (1) is embedded with a sealing ring (11).

3. The high-efficiency identification device for highway RSUs of claim 1, wherein: The inner wall of the shell (1) is fixedly connected with a limiting column (12), and the inside of the limiting column (12) is screw-connected with a screw one (13).

4. The high-efficiency identification device for highway RSUs of claim 1, wherein: The inside of the mounting plate one (4) is screw-connected with a screw two (14), and the screw two (14) penetrates the mainboard (2), the inside of the mounting plate two (5) is screw-connected with a screw three (15), and the screw three (15) penetrates the radio frequency board (6).

5. The high-efficiency identification device for highway RSUs of claim 1, wherein: The bottom of the shell (1) is provided with a rectangular notch (16) for mounting the wiring module (10).

6. The high-efficiency identification device for highway RSUs of claim 1, wherein: The surface of the mainboard (2) is mounted with a power supply (204).

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