A driver assistance intelligent voice robot and its working method

Abstract

This invention discloses an intelligent voice robot for assisted driving and its working method in the field of intelligent vehicles. It includes a camera unit, a fatigue detection unit, a route information processing unit, a rotation mechanism, and an elevation mechanism. The elevation mechanism is externally fixed with a protective cover. The rotation mechanism includes a rotating bracket mounted on a base via bearings. A rotating shaft is located at the bottom of the rotating bracket, and the rotating shaft is fixed to the inner ring of the bearing. The outer ring of the bearing is fixed to the base. A drive assembly for rotating the rotating bracket is installed at the bottom of the base. The elevation mechanism includes a pair of rotating assemblies connecting the protective cover and the rotating bracket. The rotating assemblies are used to achieve relative rotation between the protective cover and the rotating bracket. This invention has a simple and compact structure and can monitor the rotation angle through the servo motor itself, making it suitable for use in vehicle systems.

Description

Technical Field

[0001] This invention relates to an intelligent voice robot for assisted driving and its working method, and particularly to an intelligent robot. Background Technology

[0002] With the continuous development of the automotive industry, the increasing intelligence of the vehicle cabin, the ongoing improvement of 5G networks, and the widespread application of vehicle networking technology and human-machine interaction in the automotive industry, most voice robots currently on the market are integrated into the display screen, which cannot rotate freely in all directions and cannot truly achieve the feeling of robot interaction. Moreover, existing voice robots can only support voice interaction and lack intelligent assisted driving capabilities, failing to effectively support drivers in experiencing a good driving experience. Summary of the Invention

[0003] The purpose of this invention is to provide an intelligent voice robot for assisted driving and its working method. Overcoming the shortcomings of existing technologies, it can achieve directional and multi-directional rotation, while providing road condition collection and analysis, updating navigation maps, and also has functions such as fatigue detection and video storage.

[0004] The objective of this invention is achieved as follows: an intelligent voice robot for assisted driving and its working method, comprising a camera unit, a fatigue detection unit, a route information processing unit, and an elevation mechanism mounted on a rotating mechanism, wherein a protective cover is fixed to the outside of the elevation mechanism;

[0005] When the vehicle starts, it begins to operate. The camera unit collects road condition information, which is then processed by the intelligent voice navigation assistant and displayed synchronously on the screen of the display device. The intelligent voice navigation assistant also stores the video content and provides real-time feedback on the analysis results. When the road conditions are complex or the number of pedestrians exceeds the set requirements, it issues voice prompts to remind the driver to drive carefully.

[0006] After receiving signals from the camera unit for a certain period of time, the intelligent voice navigation assistant sends signals to the fatigue detection unit. The fatigue detection unit scans the driver's facial information and compares it with the pre-input fatigue state standard model. When it detects that the driver is fatigued, it gives a voice prompt to drive carefully and guides the driver to the nearest service area or parking lot.

[0007] The route information processing unit is activated when the vehicle starts, capturing mobile phone signals around the vehicle in real time. The number of mobile phone signals is used to simulate the number of people in the vicinity. As people continuously pass by, the unit records the currently passed and surrounding areas as passable road sections and records them. At the same time, the information captured by the camera unit is uploaded to the vehicle network cloud. After parsing, invalid information is deleted, and road condition information valid for navigation is saved. The system also compares the progress of route information uploaded by other vehicles to generate valid routes and dynamically updates the navigation map for use by other drivers when searching for routes.

[0008] The rotating mechanism includes a rotating bracket mounted on a base via a bearing. The bottom of the rotating bracket is provided with a rotating shaft. The rotating shaft is fixed to the inner ring of the bearing, and the outer ring of the bearing is fixed to the base. A drive assembly for driving the rotation of the rotating bracket is installed at the bottom of the base.

[0009] The elevation mechanism includes a pair of rotating components connecting the shield and the rotating bracket. The rotating components are used to realize the relative rotation of the shield and the rotating bracket. A first servo motor is mounted on the rotating bracket. A first drive gear is connected to the output shaft of the first servo motor. The inner wall of the shield is machined with a driven tooth surface that meshes with the first drive gear. The shield rotates around the rotating bracket by rotating the output shaft of the first servo motor.

[0010] In operation, this invention drives a rotating shaft via a drive assembly, thereby rotating the rotating bracket. A first servo motor then drives a protective cover to rotate around the rotating bracket, achieving pitch rotation of the cover. Compared to existing technologies, the advantages of this invention are: its simple and compact structure, and the ability to monitor the rotation angle via the servo motor itself, enabling controllable rotation in both angle and direction. Furthermore, its structural design allows for simultaneous rotation in both vertical and horizontal directions. This invention can be used in vehicle systems.

[0011] As a further limitation of the present invention, the drive assembly includes a motor bracket fixed on a base, a second servo motor mounted on the motor bracket, a second drive gear mounted on the output shaft of the second servo motor, a rotating shaft passing through a bearing, and a driven gear meshing with the second drive gear fixed at the bottom of the rotating shaft. The rotation of the rotating bracket is controlled by the second servo motor, allowing the rotation angle to be monitored automatically and conveniently controlled.

[0012] To ensure a more stable and reliable assembly of the second servo motor, a cover plate is also fixed to the bottom of the base.

[0013] To ensure a more stable and reliable installation of the rotating bracket, an angular contact ball bearing is selected. The outer ring of the angular contact ball bearing is fixed in the recess formed by the base and the motor bracket. The driven gear is threaded to the bottom of the rotating shaft. Ribs are also machined on the rotating shaft. The inner ring of the angular contact ball bearing is clamped between the driven gear and the ribs.

[0014] As a further limitation of the present invention, the two rotating components have the same structure. The rotating component includes ear rings disposed on both sides of the fixed bracket. A rotating shaft support is embedded in the ear ring. An internal threaded stud is inserted into the rotating shaft support. An external threaded sleeve is threaded onto the internal threaded stud. A rotating sleeve, a compression spring, and a washer are sleeved between the external threaded sleeve and the rotating shaft support. A plurality of spherical grooves are formed along the circumferential direction on the end face of the rotating shaft support. A plurality of balls are embedded in the spherical grooves. The rotating sleeve is pressed onto the balls by the washer under the action of the compression spring. The rotating sleeve passes through the side wall of the protective cover and is fixed to the side wall.

[0015] The beneficial effect is that the rotating component makes the connection between the protective cover and the rotating bracket more flexible, and allows for free adjustment of the rotation position of the voice robot at a small angle.

[0016] As a further limitation of the present invention, the inner wall of the ear ring is machined with a plurality of recesses, and the outer periphery of the pivot support is machined with a plurality of bosses that mate with the recesses. The mate between the recesses and the bosses is used to restrict the rotation of the pivot support.

[0017] As a further limitation of the present invention, the internal stud is non-rotatably embedded in the shaft support.

[0018] As a further limitation of the present invention, the external threaded sleeve is pressed against the outer end face of the rotating sleeve, the inner side of the rotating sleeve is machined with an inner boss, the washer is disposed on the outer end face of the inner boss, the compression spring is sleeved on the external threaded sleeve, one end of the compression spring abuts against the inner end face of the inner boss, and the other end abuts against the root of the external threaded sleeve.

[0019] This invention, employing the above technical solution, offers the following advantages compared to existing technologies: it integrates intelligent driving assistance with a dashcam, adding a camera unit to make assisted driving more effective. Besides controlling vehicle internal electrical components, it can also monitor pedestrian conditions on the road, effectively assisting the driver in focusing on driving. Targeting the mid-range market, it provides an optimized option for vehicles without intelligent assistance systems, allowing drivers to enjoy the added benefits of intelligent assisted driving when a traditional dashcam is installed, better reflecting a human-centered design philosophy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external shape of the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the rear structure in this invention.

[0024] Figure 5 This is an exploded view of the elevation angle mechanism in this invention.

[0025] Figure 6 This is an exploded view of the rotating mechanism in this invention.

[0026] Figure 7 This is a schematic diagram of the unit modules in this invention.

[0027] Among them, 1 is the central control panel; 2 is the rotating mechanism, 201 is the base, 202 is the bearing, 203 is the rotating bracket, 203a is the rotating shaft, 203b is the rib, 204 is the second driving gear, 205 is the motor bracket, 206 is the second servo motor, 207 is the cover plate, 208 is the driven gear; 3 is the elevation structure, 301 is the rotating assembly, 301a is the lug, 301b is the rotating shaft support, 301c is the ball, 301d is the washer, 301e is the rotating sleeve, 301e' is the inner boss, 301f is the compression spring, 301g is the outer threaded sleeve, 301h is the inner threaded stud, 302 is the first servo motor, 303 is the first driving gear; 4 is the protective cover, 401 is the front cover, 401a is the driven tooth surface, 402 is the rear cover, 403 is the end cover, 404 is the camera unit; 5 is the human-machine interface, 501 is the panel, 502 is the display screen. Detailed Implementation

[0028] like Figure 1-6 The illustrated intelligent voice robot for assisted driving and its working method include a rotating mechanism 2 installed on a central control panel 1, an elevation mechanism 3 installed on the rotating mechanism 2, a protective cover 4 fixed to the outside of the elevation mechanism 3, a human-machine interface 5 provided on the protective cover 4, the protective cover 4 including a front cover 401, a rear cover 402, end caps 403 on both sides and a camera unit 404, and the human-machine interface 5 including a display device 502 installed on the front cover 401, with a panel 501 provided at the front end of the display device 502;

[0029] The rotating mechanism 2 includes a rotating bracket 203 mounted on a base 201 via a bearing 202. A rotating shaft 203a is located at the bottom of the rotating bracket 203. The rotating shaft 203a is fixed to the inner ring of the bearing 202, and the outer ring of the bearing 202 is fixed to the base 201. A drive assembly for driving the rotation of the rotating bracket 203 is mounted at the bottom of the base 201. The drive assembly includes a motor bracket 205 fixed to the base 201, a second servo motor 206 mounted on the motor bracket 205, and a second drive gear 204 mounted on the output shaft of the second servo motor 206. The rotating shaft 203... A drive gear 208 that meshes with the second drive gear 204 is fixed at the bottom of the shaft 203a, and a cover plate 207 is also fixed at the bottom of the base 201. The bearing 202 is an angular contact ball bearing 202. The outer ring of the angular contact ball bearing 202 is fixed in the recess formed by the base 201 and the motor bracket 205. The drive gear 208 is threaded to the bottom of the shaft 203a. Ribs 203b are also machined on the shaft 203a. The inner ring of the angular contact ball bearing 202 is clamped between the drive gear 208 and the ribs 203b.

[0030] The elevation mechanism 3 includes a pair of rotating components 301 connecting the front cover 401 and the rotating bracket 203. The rotating components 301 are used to realize the relative rotation of the front cover 401 and the rotating bracket 203. A first servo motor 302 is mounted on the rotating bracket 203. A first drive gear 303 is connected to the output shaft of the first servo motor 302. A driven tooth surface 401a that meshes with the first drive gear 303 is machined on the inner wall of the cover. The rotation of the output shaft of the first servo motor 302 drives the cover to rotate around the front cover. The bracket 203 rotates. The two rotating components 301 have the same structure. Each rotating component 301 includes ear rings 301a on both sides of the fixed bracket. A pivot support 301b is embedded in the ear ring 301a. Multiple recesses are machined on the inner wall of the ear ring 301a. Multiple bosses that mate with the recesses are machined on the outer periphery of the pivot support 301b. The mating of the recesses and bosses restricts the rotation of the pivot support 301b. An internal stud 301h is inserted into the pivot support 301b. A non-rotatable insert is embedded in the shaft support 301b. An external threaded sleeve 301g is threaded onto the internal threaded stud 301h. A rotating sleeve 301e, a compression spring 301f, and a washer 301d are fitted between the external threaded sleeve 301g and the shaft support 301b. Multiple spherical grooves are formed along the circumferential direction on the end face of the shaft support 301b. Multiple balls 301c are embedded in the spherical grooves. Under the action of the compression spring 301f, the rotating sleeve 301e is pressed against the balls 301c by the washer 301d. On 01c, the rotating sleeve 301e passes through the side wall of the front cover 401 and is fixed on the side wall. The outer threaded sleeve 301g is pressed against the outer end face of the rotating sleeve. An inner boss 301e' is machined on the inner side of the rotating sleeve. A washer 301d is set on the outer end face of the inner boss 301e'. A compression spring 301f is sleeved on the outer threaded sleeve 301g. One end of the compression spring 301f abuts against the inner end face of the inner boss 301e', and the other end abuts against the root of the outer threaded sleeve 301g.

[0031] When the invention is in operation, the second servo motor 206 drives the driven gear 208 to rotate, and the driven gear 208 drives the rotating shaft 203a to rotate, thereby realizing the rotation of the rotating bracket 203. The first servo motor 302 drives the protective cover 4 to rotate around the rotating bracket 203, thereby realizing the pitch rotation of the protective cover 4. Through the two rotation methods, the display device 502 can be accurately oriented towards the driver or the voice interaction user, thereby improving the user experience of using the in-vehicle voice assistant.

[0032] In the implementation case, the camera unit 404 installed on the rear cover 402 starts operating when the vehicle starts. It simultaneously displays the identified road condition information and pedestrians on the road on the screen and stores the video content. At the same time, it provides real-time feedback to the route information processing unit for analysis. When the road conditions are complex and the number of pedestrians on the road exceeds the set requirement, it sends a signal to the driver to drive carefully. After receiving the signal from the camera unit for a certain period of time, the route information processing unit determines that the driver has been driving for an extended period of time, provides a voice prompt to drive carefully, and guides the driver to the nearest server or parking lot. The route information processing unit is activated when the vehicle starts, and it captures mobile phone signals around the vehicle in real time. The number of mobile phone signals is used to simulate the number of people around the vehicle. As people continuously pass by, the unit records the currently passed and the surrounding area as passable road sections and records them.

[0033] This invention is not limited to the above embodiments. Based on the technical solutions disclosed in this invention, those skilled in the art can make some substitutions and modifications to some of the technical features without creative effort, and all such substitutions and modifications are within the protection scope of this invention.

Claims

1. A method for operating an intelligent voice robot for assisted driving, characterized in that, Includes the following steps: 1) The camera unit starts operating when the vehicle starts. It collects road condition information, which is then processed by the intelligent voice navigation assistant and displayed on the screen of the display device. The intelligent voice navigation assistant also stores the video content and provides real-time feedback on the analysis results. When the road conditions are complex or the number of pedestrians exceeds the set requirements, it issues voice prompts to remind the driver to drive carefully. 2) After receiving the signal from the camera unit for a certain period of time, the intelligent voice navigation assistant sends a signal to the fatigue detection unit. The fatigue detection unit scans the driver's facial information and compares it with the pre-input fatigue state standard model. When it detects that the driver is fatigued, it gives a voice prompt to drive carefully and guides the driver to the nearest service area or parking lot. 3) The route information processing unit is activated when the vehicle starts to capture mobile phone signals around the vehicle in real time. The number of mobile phone signals is used to simulate the number of people around the vehicle. As people pass by, the unit records the currently passed and the surrounding area as passable road sections and records them. At the same time, the information captured by the camera unit is uploaded to the vehicle network cloud. After parsing, invalid information is deleted, and road condition information that is valid for navigation is saved. The system also compares the progress of route information uploaded by other vehicles to generate a valid route and dynamically updates the navigation map for other drivers to use when searching for routes.

2. The working method of the intelligent voice robot for assisted driving according to claim 1, characterized in that, The route information processing unit records a passable road segment, which requires that when the number of mobile phone signals is set to λ, and the number of times a vehicle passes through a non-recorded road segment within a certain number of days x is θ, then P=λ•θ / x is the daily signal throughput. When P≥ the set value, it is recorded as a passable road segment and uploaded.

3. The working method of the intelligent voice robot for assisted driving according to claim 1, characterized in that, The road condition information that is effective for navigation includes road width, number of lanes, solid and dashed lines, traffic light times and sequences, and the location information of various road warning signs.

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