Pavement flatness detection probe and vehicle-mounted host assembly

Abstract

The utility model discloses a road surface evenness detection probe and a vehicle-mounted host assembly, the road surface evenness detection probe comprises a first housing, a laser range finder and an acceleration sensor, the laser range finder and the acceleration sensor are both arranged in the first housing, the first housing is provided with a detection window, and the first housing is provided with a first camera and a second camera. The detection end of the laser range finder is aligned with the detection window, and the laser range finder and the acceleration sensor are arranged in the first shell, so that the laser range finder and the acceleration sensor can be used as an independent road surface evenness detection probe to be installed outside a vehicle body, and the road surface evenness detection probe is convenient to install and good in operation safety.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle-mounted road detection equipment, and in particular relates to a road surface flatness detection probe and a vehicle-mounted host assembly. Background Art

[0002] With the continuous improvement of highway service quality requirements and the establishment of a pavement management system, flatness has become one of the most important indicators of pavement performance. The flatness of the pavement is related to the flatness of each structural layer of the pavement. Since the pavement surface is in direct contact with the vehicle and the atmosphere, the uneven surface will increase the driving resistance and cause additional vibration to the vehicle. This vibration will cause driving bumps, affect the speed and safety of the vehicle, the smoothness of the driving, and the comfort of the passengers. At the same time, the vibration will also exert impact force on the pavement, thereby aggravating the damage to the pavement and automobile parts and the wear of the tires. Moreover, the uneven pavement will accumulate rainwater and accelerate the destruction of the pavement. At present, the detection of pavement flatness is mostly carried out in combination with a laser rangefinder and an acceleration sensor combined with corresponding algorithms. However, the acceleration sensor and the laser rangefinder are currently integrated in the equipment, which means that the entire equipment needs to be installed outside the vehicle body. Utility Model Content

[0003] In order to solve the above technical problems, one of the purposes of the utility model is to provide a road surface flatness detection probe which has a simple structure and can be independently placed outside a vehicle.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a road surface flatness detection probe, including a first shell, a laser rangefinder and an acceleration sensor, the laser rangefinder and the acceleration sensor are both arranged in the first shell, and a detection window is provided on the first shell, and the detection end of the laser rangefinder is aligned with the detection window.

[0005] The beneficial effect of the above technical solution is that by arranging the laser rangefinder and the acceleration sensor in the first shell, it can be installed outside the vehicle body as an independent road surface flatness detection probe, which makes it easy to install and has good operating safety.

[0006] In the above technical solution, the detection window is a through hole, the laser rangefinder is arranged in the first shell on a side close to the detection window, and its detection end is aligned with the detection window to block the detection window.

[0007] The beneficial effect of the above technical solution is that it has a simple structure and can prevent dust from entering the first shell through the detection window.

[0008] In order to solve the above technical problems, the second purpose of the utility model is to provide a vehicle-mounted host assembly with a simple structure and capable of processing the data detected by the road surface flatness detection probe.

[0009] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows: a vehicle-mounted host assembly, including a vehicle-mounted host device and the road surface flatness detection probe as described above, the road surface flatness detection probe is used to be set outside the vehicle body, the vehicle-mounted host device is set on the vehicle body, and the road surface flatness detection probe is electrically connected to the vehicle-mounted host device, the vehicle-mounted host device is powered by the vehicle body, the road surface flatness detection probe is powered by the vehicle-mounted host device, and the detection information of the road surface flatness detection probe is transmitted to the vehicle-mounted host device.

[0010] The beneficial effect of the above technical solution is that the vehicle-mounted host device can be set inside the vehicle body, and the road surface flatness detection probe can be set outside the vehicle body. The vehicle-mounted host device supplies power to the road surface flatness detection probe and receives detection data from the road surface flatness detection probe to analyze the flatness of the road surface.

[0011] In the above technical solution, a flatness port 1 is provided on the first shell, and a flatness port 2 is provided on the vehicle-mounted host device. The flatness port 1 is electrically connected to the laser rangefinder and the acceleration sensor, and the flatness port 2 is electrically connected to the flatness port 1 for power supply and signal transmission.

[0012] The beneficial effect of the above technical solution is that the flatness port 1 and the flatness port 2 are electrically connected through the adapter line, and the vehicle-mounted host device and the road surface flatness detection probe can be connected when in use, and can be disassembled and separated when not in use.

[0013] The vehicle-mounted host device in the above technical solution includes a second shell and an acquisition mainboard, a synchronization board, a data acquisition module, a combined inertial navigation and a switch arranged in the second shell. The flatness port 2 is arranged on the second shell. The second shell is provided with a positioning port, a display and control port, a power port, an image port group, an encoder port, a hard disk plug port and a power switch. The switch, synchronization board, acquisition mainboard, data acquisition module, image port group and flatness port 2 are all electrically connected to the power port through the power switch, the synchronization board and the positioning port are all electrically connected to the combined inertial navigation, the acquisition mainboard, synchronization board and display and control port are all electrically connected to the switch, the flatness port 2, synchronization board and acquisition mainboard are all electrically connected to the data acquisition module, the hard disk plug port is electrically connected to the acquisition mainboard, and the image port group and encoder port are all electrically connected to the synchronization board.

[0014] The beneficial effect of the above technical solution is that the vehicle-mounted host device can also receive the mileage data of the encoder and the image data of the camera, and the synchronization board can perform time synchronization, and the combined inertial navigation can perform longitude and latitude positioning. The road surface flatness detection probe obtains road surface flatness data, and the synchronization board couples the flatness data and mileage data, and performs time and space synchronization. After synchronization, the coupled data and image data are stored on the hard disk, and the display control port can be electrically connected to the digital display device, and the digital display device can display the image data obtained by the camera in real time.

[0015] In the above technical solution, a heat dissipation window is also provided on the side wall of the second shell, a heat dissipation fan is also provided in the second shell, and the air outlet of the heat dissipation fan is aligned with the heat dissipation window, and the heat dissipation fan is electrically connected to the power port through the power switch.

[0016] The beneficial effect of the above technical solution is that the heat dissipation fan can be used in conjunction with the heat dissipation window to dissipate heat inside the second shell.

[0017] In the above technical solution, the heat dissipation windows and the heat dissipation fans are both provided in plurality, and the number of the heat dissipation windows is not less than the number of the heat dissipation fans.

[0018] The beneficial effect of the above technical solution is that the heat dissipation performance of the vehicle-mounted host device can be improved.

[0019] The above technical solution also includes two transformer modules, the power port is used to input 12V DC power, the two transformer modules are electrically connected to the power port through the power switch, the two transformer modules are respectively a first transformer module and a second transformer module, the first transformer module is used to output 24V DC power, and the second transformer module is used to output 5V DC power, the image port group is electrically connected to the power switch through the second transformer module, and the flatness port 2 is electrically connected to the power switch through the first transformer module and the second transformer module.

[0020] The beneficial effect of the above technical solution is that it can meet the differentiated voltage requirements of different electronic components.

[0021] The above technical solution also includes that two image port groups are provided.

[0022] The beneficial effect of the above technical solution is that the image port group can obtain two channels of image data.

[0023] In the above technical solution, a partition is arranged in the middle of the second shell, the acquisition main board, synchronization board and switch are arranged at the upper end of the partition, the data acquisition module is installed at the lower end of the partition, and the two transformer modules are arranged in the second shell and located below the partition.

[0024] The beneficial effects of the above technical solution are: its structure is simple and makes the layout of the electronic components in the second housing more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a vertical view of the road surface flatness detection probe described in Example 1 of the utility model;

[0026] Figure 2 This is a cross-sectional view of the road surface flatness detection probe described in Example 1 of the utility model;

[0027] Figure 3 This is a structural schematic diagram of the vehicle-mounted host assembly in operation according to Embodiment 2 of the utility model;

[0028] Figure 4 It is a schematic diagram of one side of the second shell in Embodiment 2 of the present utility model;

[0029] Figure 5 It is a schematic diagram of the other side of the second shell in Embodiment 2 of the present utility model;

[0030] Figure 6 This is a schematic diagram of the vehicle-mounted host device in Embodiment 2 of the present utility model when the upper end is opened;

[0031] Figure 7 This is a schematic diagram of the lower portion of the open partition at the upper end of the vehicle-mounted host device described in Example 2 of the utility model.

[0032] In the figure: 1. road surface flatness detection probe; 11. first housing; 111. detection window; 12. laser rangefinder; 13. acceleration sensor; 14. flatness port 1; 2. vehicle-mounted host device; 21. second housing; 211. flatness port 2; 212. positioning port; 212a. positioning main port; 212b. positioning sub-port; 213. display control port; 214. power port; 215. image port group; 215a. first image port group; 2151a. first power supply control port; 2152a. first data transmission port; 215b. second image port group; 215 1b, second power supply control port; 2152b, second data transmission port; 216, encoder port; 217, hard disk plug-in port; 218, heat dissipation window; 219, partition; 210a, HDMI port; 210b, USB port; 22, acquisition main board; 23, synchronization board; 24, data acquisition module; 25, combined inertial navigation; 26, switch; 27, power switch; 28, cooling fan; 29, transformer module; 29a, first transformer module; 29b, second transformer module; 3, encoder; 4a, first camera; 4b, second camera; 5, digital display device; 6, hard disk. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0034] Example 1

[0035] like Figure 1 and Figure 2 As shown, this embodiment provides a road surface flatness detection probe, including a first shell 11, a laser rangefinder 12 and an acceleration sensor 13. The laser rangefinder 12 and the acceleration sensor 13 are both arranged in the first shell 11, and a detection window is arranged on the first shell 11. The detection end of the laser rangefinder 12 is aligned with the detection window. By arranging the laser rangefinder and the acceleration sensor in the first shell, it can be installed outside the vehicle body as an independent road surface flatness detection probe, which makes it easy to install and has good operating safety.

[0036] In the above technical solution, the detection window 111 is a through hole, the laser rangefinder 12 is arranged on a side of the first shell 11 close to the detection window 111, and its detection end is aligned with the detection window 111, and the detection window 111 is blocked. Its structure is simple and can prevent dust from entering the first shell through the detection window.

[0037] Example 2

[0038] like Figure 3-Figure 7 As shown, this embodiment provides a vehicle-mounted host assembly, including a vehicle-mounted host device 2 and a road surface flatness detection probe 1 as described in Example 1, wherein the road surface flatness detection probe 1 is used to be arranged outside the vehicle body, the vehicle-mounted host device 2 is arranged on the vehicle body, and the road surface flatness detection probe 1 is electrically connected to the vehicle-mounted host device 2, the vehicle-mounted host device 2 is powered by the vehicle body, the road surface flatness detection probe 1 is powered by the vehicle-mounted host device 2, and the detection information of the road surface flatness detection probe 1 is transmitted to the vehicle-mounted host device 2, so that the vehicle-mounted host device can be arranged in the vehicle body, and the road surface flatness detection probe is arranged outside the vehicle body, the vehicle-mounted host device supplies power to the road surface flatness detection probe, and receives detection data of the road surface flatness detection probe to analyze the flatness of the road surface.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, in the above technical solution, the first shell 11 is provided with a flatness port 14, and the vehicle-mounted host device 2 is provided with a flatness port 211, the flatness port 14 is electrically connected to the laser rangefinder 12 and the acceleration sensor 13, and the flatness port 211 and the flatness port 14 are electrically connected to supply power and transmit signals; in this way, the flatness port 1 and the flatness port 2 are electrically connected through the adapter line, and the vehicle-mounted host device 2 and the road surface flatness detection probe 1 can be connected when in use, and can be disassembled and separated when not in use.

[0040] like Figure 4 As shown, the vehicle-mounted host device 2 in the above technical solution includes a second shell 21 and an acquisition mainboard 22, a synchronization board 23, a data acquisition module 24, a combined inertial navigation 25 and a switch 26 arranged in the second shell 21, the flatness port 211 is arranged on the second shell 21, and the second shell 21 is provided with a positioning port 212, a display control port 213, a power port 214, an image port group 215, an encoder port 216, a hard disk plug port 217 and a power switch 27, the switch 26, the synchronization board 23, the acquisition mainboard 22, the data acquisition module 24, the image port group 215 and the flatness port 211 are all electrically connected to the power port 214 through the power switch 27, the synchronization board 23 and the positioning port 212 are all electrically connected to the combined inertial navigation 25, the acquisition mainboard 2 ... The step board 23 and the display and control port 213 are both electrically connected to the switch 26, the flatness port 211, the synchronization board 23 and the acquisition main board 22 are all electrically connected to the data acquisition module 24, the hard disk plug-in port 217 is electrically connected to the acquisition main board 22, and the image port group 215 and the encoder port 216 are both electrically connected to the synchronization board 23. In this way, the vehicle-mounted host device can also receive the mileage data of the encoder and the image data of the camera, and the synchronization board performs time synchronization at the same time, and the combined inertial navigation performs longitude and latitude positioning, the road surface flatness detection probe obtains the road surface flatness data, and the synchronization board couples the flatness data and the mileage data, and performs time and space synchronization. After synchronization, the coupled data and the image data are stored on the hard disk, and the display and control port can be electrically connected to the digital display device, and the digital display device can display the image data obtained by the camera in real time.

[0041] The hard disk plug-in port 217 is used for detachably plugging in the hard disk 6, and after the hard disk 6 is plugged in, it is electrically connected to the acquisition mainboard 22 through the hard disk plug-in port.

[0042] In the above technical solution, a heat dissipation window 218 is also provided on the side wall of the second shell 21, and a heat dissipation fan 28 is also provided in the second shell 21, and the air outlet of the heat dissipation fan 28 is aligned with the heat dissipation window 218, and the heat dissipation fan 28 is electrically connected to the power port 214 through the power switch 27, so that the heat dissipation inside the second shell can be dissipated by the heat dissipation fan in conjunction with the heat dissipation window.

[0043] like Figure 5 As shown, in the above technical solution, the heat dissipation window 218 and the heat dissipation fan 28 are both provided in plurality, and the number of the heat dissipation window 218 is not less than the number of the heat dissipation fan 28, so as to improve the heat dissipation performance of the vehicle-mounted host device 2. Preferably, the heat dissipation window and the heat dissipation fan are both provided in two.

[0044] like Figure 7 As shown, the above technical solution also includes two transformer modules 29, the power port 214 is used to input 12V DC power, and the two transformer modules 29 are electrically connected to the power port 214 through the power switch 27. The two transformer modules 29 are respectively a first transformer module 29a and a second transformer module 29b. The first transformer module 29a is used to output 5V DC power, and the second transformer module 29b is used to output 24V DC power. The image port group 215 is electrically connected to the power switch 27 through the second transformer module 29b, and the flatness port 211 is electrically connected to the power switch 27 through the first transformer module 29a and the second transformer module 29b. In this way, the differentiated voltage requirements of different electronic components can be met.

[0045] like Figure 4 As shown, the above technical solution also includes that two image port groups 215 are provided, so that the image port group obtains two channels of image data.

[0046] like Figure 6 As shown, in the above technical solution, a partition 219 is provided in the middle of the second shell 21, the acquisition main board 22, the synchronization board 23 and the switch 26 are arranged at the upper end of the partition 219, and the data acquisition module 24 is installed at the lower end of the partition 219. The two transformer modules 29 are arranged in the second shell 21 and are located below the partition 219. The structure is simple and the layout of electronic components in the second shell is more compact.

[0047] The camera, encoder and digital display device described in this embodiment are similar to the road surface flatness detection probe 1 and are used to obtain data and provide corresponding data to the vehicle-mounted host device 2. They are external supporting equipment for the vehicle-mounted host device 2.

[0048] Since there are two groups of image port groups in the present embodiment, two cameras can also be set. Both cameras are industrial cameras, and the two cameras are respectively a first camera 4a and a second camera 4b. The first camera recognizes roadside signs in the direction of the vehicle and obtains image information, while the second camera faces the road surface and is used to obtain potholes on the road surface and obtain image information. The information obtained by the two cameras can be synchronously stored in the hard disk and can be displayed and controlled in real time by a digital display device. The two groups of image ports correspond to the two cameras one by one, and each group of image port groups has a power supply control port and a data transmission port (and the power supply control port and the data transmission port are both electrically connected to the synchronization board). The two groups of image ports are connected to the two cameras in a one-to-one manner. The port groups 215 are respectively a first image port group 215a (having a first power supply control port 2151a and a first data transmission port 2152a) and a second image port group 215b (having a second power supply control port 2151b and a second data transmission port 2152b). Each camera is electrically connected to the synchronization board through the corresponding power supply control port and the data transmission port (and each power supply control port is also electrically connected to the second transformer module. The synchronization board triggers the camera to start through the power supply control port, and the second transformer module supplies power to the camera through the power supply control port. The data transmission port only transmits the image data of the camera to the acquisition main board, wherein the power supply control port can be a dual-purpose port for power supply and communication).

[0049] The power voltage of the laser rangefinder described in this embodiment is 24V DC, while the power voltage of the acceleration sensor is 5V DC. In this embodiment, the flatness port 1 and the flatness port 2 are both dual-purpose ports for power supply and communication (and they both have two power supply lines and two communication lines, wherein the acceleration sensor and the laser rangefinder can each use one power supply line and one communication line).

[0050] The power switch described in this embodiment can adopt an air switch, which has high safety.

[0051] There are two positioning ports 212 , which are a main positioning port 212 a and a secondary positioning port 212 b . Both positioning ports are used to plug in positioning antennas.

[0052] like Figure 4 As shown, in order to facilitate the maintenance and overhaul of the vehicle-mounted host device 2, an HDM I port 210a and a USB port 210b electrically connected to the synchronization board may also be provided on the second shell, wherein the HDM I port 210a may be electrically connected to the display screen, and the USB port 210b may be plugged with a mouse or keyboard to set or overhaul the vehicle-mounted host device 2.

[0053] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A road surface flatness detection probe, characterized in that: The invention comprises a first housing (11), a laser rangefinder (12) and an acceleration sensor (13); the laser rangefinder (12) and the acceleration sensor (13) are both arranged in the first housing (11); a detection window (111) is arranged on the first housing (11); and a detection end of the laser rangefinder (12) is aligned with the detection window (111).

2. The road surface flatness detection probe according to claim 1, characterized in that: The detection window (111) is a through hole, and the laser rangefinder (12) is arranged on a side of the first housing (11) close to the detection window (111), with its detection end aligned with the detection window (111) and blocking the detection window (111).

3. A vehicle-mounted host assembly, characterized in that: It comprises a vehicle-mounted host device (2) and a road surface flatness detection probe (1) as claimed in claim 1 or 2, wherein the road surface flatness detection probe (1) is used to be arranged outside the vehicle body, the vehicle-mounted host device (2) is arranged on the vehicle body, and the road surface flatness detection probe (1) is electrically connected to the vehicle-mounted host device (2), the vehicle-mounted host device (2) is powered by the vehicle body, the road surface flatness detection probe (1) is powered by the vehicle-mounted host device (2), and the detection information of the road surface flatness detection probe (1) is transmitted to the vehicle-mounted host device (2).

4. The vehicle-mounted host assembly according to claim 3, characterized in that: The first housing (11) is provided with a first flatness port (14), the vehicle-mounted host device (2) is provided with a second flatness port (211), the first flatness port (14) is electrically connected to the laser rangefinder (12) and the acceleration sensor (13), and the second flatness port (211) is electrically connected to the first flatness port (14) for power supply and signal transmission.

5. The vehicle-mounted host assembly according to claim 4, characterized in that: The vehicle-mounted host device (2) comprises a second housing (21) and an acquisition mainboard (22), a synchronization board (23), a data acquisition module (24), a combined inertial navigation (25) and a switch (26) arranged in the second housing (21); the flatness port 2 (211) is arranged on the second housing (21); the second housing (21) is provided with a positioning port (212), a display control port (213), a power port (214), an image port group (215), an encoder port (216), a hard disk plug port (217) and a power switch (27); the switch (26), the synchronization board (23), the acquisition mainboard (22), the data acquisition module (24), the image port The group (215) and the flatness port 2 (211) are electrically connected to the power port (214) through the power switch (27); the synchronization board (23) and the positioning port (212) are electrically connected to the combined inertial navigation (25); the acquisition main board (22), the synchronization board (23) and the display and control port (213) are electrically connected to the switch (26); the flatness port 2 (211), the synchronization board (23) and the acquisition main board (22) are electrically connected to the data acquisition module (24); the hard disk plug port (217) is electrically connected to the acquisition main board (22); and the image port group (215) and the encoder port (216) are electrically connected to the synchronization board (23).

6. The vehicle-mounted host assembly according to claim 5, characterized in that: A heat dissipation window (218) is also provided on the side wall of the second shell (21), and a heat dissipation fan (28) is also provided in the second shell (21), and the air outlet of the heat dissipation fan (28) is aligned with the heat dissipation window (218), and the heat dissipation fan (28) is electrically connected to the power port (214) through the power switch (27).

7. The vehicle-mounted host assembly according to claim 6, characterized in that: The heat dissipation windows (218) and the heat dissipation fans (28) are both provided in plurality, and the number of the heat dissipation windows (218) is not less than the number of the heat dissipation fans (28).

8. The vehicle-mounted host assembly according to claim 5, characterized in that: It also includes two transformer modules (29), the power port (214) is used to input 12V direct current, the two transformer modules (29) are electrically connected to the power port (214) through the power switch (27), the two transformer modules (29) are respectively a first transformer module (29a) and a second transformer module (29b), the first transformer module (29a) is used to output 5V direct current, and the second transformer module (29b) is used to output 24V direct current, the image port group (215) is electrically connected to the power switch (27) through the second transformer module (29b), and the flatness port 2 (211) is electrically connected to the power switch (27) through the first transformer module (29a) and the second transformer module (29b).

9. The vehicle-mounted host assembly according to claim 8, characterized in that: It also includes that two image port groups (215) are provided.

10. The vehicle-mounted host assembly according to claim 8, characterized in that: A partition (219) is provided in the middle of the second shell (21); the acquisition main board (22), the synchronization board (23) and the switch (26) are arranged at the upper end of the partition (219); the data acquisition module (24) is installed at the lower end of the partition (219); and the two transformer modules (29) are arranged in the second shell (21) and are located below the partition (219).

Images