Driver distraction early warning device suitable for industrial vehicle and industrial vehicle

Abstract

The invention relates to the field of industrial vehicle hardware design, in particular to equipment structure optimization for monitoring the safety state of a driver of a vehicle. According to the technical scheme, the driver distraction early warning device suitable for the industrial vehicle comprises a vehicle connecting opening used for being connected with the industrial vehicle, a connecting rod connected with the vehicle connecting opening and a feature collecting module connected with the connecting rod, a mounting disc is rotationally connected to the connecting rod, and the feature collecting module is connected with the mounting disc. The mounting disc comprises a base disc and a moving disc in sliding connection with the base disc, the special acquisition module comprises a plurality of acquisition monomers mounted on the surface of the moving disc, and each acquisition monomer comprises a sensor. The invention aims to provide a driver distraction early warning device suitable for an industrial vehicle and the industrial vehicle. Flexible adjustment can be carried out according to heights and sitting postures of different drivers, and the recognition accuracy and universality are improved; the visual angle is wide and accurate, and targets are not easy to lose.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial vehicle hardware design, in particular to the structure optimization of the device for monitoring the safety state of the driver of the vehicle. BACKGROUND

[0002] Industrial vehicles refer to wheeled transport and hoisting equipment used for material handling, stacking, traction or loading and unloading operations in a defined area such as a port, warehouse, workshop or construction site. They are different from commercial transport vehicles running on public roads and mainly serve industrial and commercial sectors such as production and logistics, which are indispensable key equipment in modern production and logistics systems.

[0003] On industrial vehicles, a driver distraction detection system is provided. This kind of warning system is an active safety technology that judges the attention state of the driver by monitoring the behavior characteristics such as head posture, line of sight, facial expression, etc. The device aims to identify whether the driver deviates from the normal working posture, such as frequent head turning, lowering the head or long time staring at non-working area, so as to warn the distraction state and reduce the risk of accidents caused by human operation errors.

[0004] The core component of this kind of device is the feature acquisition module, which is installed on the vehicle body. The hardware can be an angle sensor, an optical sensor, and a shielding sensor, which is used to directly obtain the head angle data of the driver and provide data basis for the later system judgment.

[0005] However, this kind of technical solution has two defects: on the one hand, the feature acquisition module is often fixedly installed and cannot be flexibly adjusted according to the height, sitting posture and seat position of different drivers, resulting in poor monitoring angle or blind area, affecting the recognition accuracy. On the other hand, the feature acquisition module is often a single view sensor, which is easy to lose the target due to slight deviation of the driver's head or change of light conditions, and the monitoring stability is not ideal. SUMMARY

[0006] The purpose of the present application is to provide a driver distraction warning device and an industrial vehicle suitable for industrial vehicles. It can be flexibly adjusted according to the height and sitting posture of different drivers, improving the accuracy and universality of recognition; and the wide and accurate view angle is not easy to lose the target.

[0007] The application is realized by the following technical scheme: the driver distraction warning device suitable for industrial vehicles comprises a vehicle connecting port for connecting with the industrial vehicle, a connecting rod connected with the vehicle connecting port, and a feature acquisition module connected with the connecting rod, the connecting rod is rotationally connected with a mounting disc, the mounting disc comprises a base disc and a moving disc slidingly connected with the base disc, the feature acquisition module comprises a plurality of acquisition units mounted on the surface of the moving disc, and each acquisition unit comprises a sensor.

[0008] As a preferred embodiment of the application, the plurality of sensors are arranged in a ring array.

[0009] As a preferred embodiment of the application, the acquisition unit comprises a base mounted on the surface of the moving disc and a push plate slidingly connected with the base, the sensor is mounted on the push plate, and the moving direction of the push plate is the radial direction of the disc body of the moving disc.

[0010] As a preferred embodiment of the application, a co-connection piece is further included, and the co-connection piece connects at least two push plates.

[0011] As a preferred embodiment of the application, the base disc comprises a moving groove, and the moving disc comprises a disc body and a moving column connected with the disc body.

[0012] As a preferred embodiment of the application, the moving groove comprises a plurality of single grooves, the plurality of single grooves meet at the central position of the base disc, and the single grooves are uniformly spaced.

[0013] As a preferred embodiment of the application, the cross section of the moving column is square.

[0014] As a preferred embodiment of the application, an auxiliary fixing device for assisting in connecting and fixing the vehicle connecting port with the industrial vehicle is further included.

[0015] As a preferred embodiment of the application, the auxiliary fixing device comprises a sliding rail connected with the vehicle connecting port, a first sliding plate slidingly connected with the sliding rail, and a second sliding plate, and the second sliding plate is provided with a slot for inserting the first sliding plate.

[0016] As a preferred embodiment of the application, the connecting rod comprises a first rod connected with the vehicle connecting port and a second rod slidingly connected with the first rod, and the mounting disc is connected with the second rod.

[0017] As a preferred embodiment of the application, the second rod comprises a plurality of positioning ports arranged in the height direction, the first rod is connected with a pull rod for being inserted into the positioning ports, and the pull rod is sleeved with a spring.

[0018] As a preferred embodiment of the application, the base disc is provided with a rotating shaft rotationally connected with the connecting rod and a locking shaft piece for abutting against the rotating shaft to prevent the rotating shaft from rotating.

[0019] The industrial vehicle comprises a main frame provided with a walking device, and the driver distraction early warning device for the industrial vehicle is installed on the main frame.

[0020] In summary, the present application has the following advantages:

[0021] 1. The moving plate can move on the base plate to adjust the field of view, and the collection unit comprises multiple sensors to avoid the situation that a single sensor easily loses the target.

[0022] 2. The sensors are installed on the push plate, and the push plate can linearly move to further expand the adjustment range of the sensors.

[0023] 3. The use of the common connecting piece can simplify the operation and reduce the operation steps when multiple sensors need to be adjusted, thereby improving the efficiency.

[0024] 4. The moving groove is in the shape of a Chinese character'mi', and the moving range of the moving column is more flexible and wide. The moving groove is positioned by static friction, and the operation is convenient.

[0025] 5. The rod one and the rod two are designed to be telescopic, and the length is adjustable. The base plate and the connecting rod are designed to rotate, thereby further enhancing the flexibility of the collection module.

[0026] 6. The rod one and the rod two are positioned by the positioning port and the pull rod, and the operation is convenient. The spring is used for returning, which is labor-saving and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of example 1;

[0028] Figure 2 is another angle schematic diagram of Figure 1 ;

[0029] Figure 3 is a schematic diagram of the auxiliary fixing device;

[0030] Figure 4 is a side view of the connecting rod;

[0031] Figure 5 is a schematic diagram of the mounting plate;

[0032] Figure 6 is a schematic diagram of the feature collection module.

[0033] In the figure: 1, the connecting port, 2, connecting rod, 21, rod one, 22, rod two, 221, positioning port, 23, pull rod, 24, spring, 3, auxiliary fixing device, 31, slide rail, 32, slide plate one, 33, slide plate two, 34, slot, 4, base disc, 41, moving groove, 5, moving disc, 51, moving column, 52, disc body, 6, collection unit, 61, base, 62, push plate, 63, sensor, 71, rotating shaft, 72, locking shaft piece, 8, common connecting piece. DETAILED DESCRIPTION

[0034] The application will be further described below in conjunction with the drawings.

[0035] The specific embodiments are only an explanation of the application, and are not a limitation of the application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, as long as the modifications are within the scope of the claims of the application.

[0036] The following description provides examples, and does not limit the scope, applicability, or examples set forth in the claims. Changes can be made in the function and arrangement of elements described without departing from the scope of the description. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different than described, and various steps can be added, omitted, or combined. Also, features described with respect to some examples can be combined in other examples.

[0037] Embodiment 1, a driver distraction warning device suitable for industrial vehicles, as shown in Figure 1 The connecting port 1 is used to be clamped and connected with a component on the body of the industrial vehicle, for example, connected at the top of the body rod, in order to enhance the stability after connection, the auxiliary fixing device 3 is installed on the connecting port 1. As shown in Figure 3 The slide rail 31 is fixedly arranged on the connecting port 1, and two slide plates slide therein, namely slide plate one 32 and slide plate two 33. When connection and fixation are needed, the slide plate one 32 and the slide plate two 33 slide close to each other, the slot 34 is arranged on the slide plate two 33 for the end of the slide plate one 32 to access, and the auxiliary connection and fixation to the body rod is completed.

[0038] And the connecting rod 2 is also designed to be telescopic and adjustable, as shown in Figure 2As shown in Figure 4, connecting rod 2 is a two-section telescopic rod design, with rod two 22 sliding within rod one 21. Rod two 22 has multiple positioning ports 221 at different height positions. Rod one 21 is equipped with a pull rod 23, on which a spring 24 is fitted. When the user overcomes the spring force and pulls out the pull rod 23, rod two 22 can slide and extend freely. After sliding to the designated position, the user releases the pull rod 23, which springs back under the drive of the spring force and inserts into the corresponding positioning port 221, thus completing the length adjustment of the entire connecting rod 2.

[0039] like Figure 2 As shown, a mounting plate is rotatably mounted at the lower end of rod 22, comprising a base plate 4 and a movable plate 5. A rotating shaft 71 is mounted on the base plate 4, which is rotatably connected to the lower end of rod 22 via the shaft 71, thereby enabling the base plate 4 to move... Figure 2 It rotates horizontally. A locking plate 72 is slidably provided on the surface of the base plate 4. The user can move the locking plate 72 with his / her finger so that it comes close to the rotating shaft 71 and abuts against it to lock the rotation angle.

[0040] The base plate 4 and the movable plate 5 are not designed to rotate, but rather to slide. Specifically, for example... Figure 5 As shown, the base plate 4 has a movable groove 41, which contains multiple individual grooves. These individual grooves are evenly spaced and converge at the center of the base plate 4, extending radially. The entire movable groove 41 is arranged in a star-shaped pattern. The movable disk 5 includes a disk body 52 and a movable column 51 protruding from its lower surface. The position of the entire movable disk 5 is adjusted by moving the movable column 51 within the movable groove 41.

[0041] The movable column 51 can be a square column with a square cross-section, which allows it to achieve relative stability in position after it moves into place in the movable groove 41, relying on the static friction between the surface of the column and the surface of the groove wall of the movable groove 41.

[0042] When the user moves the position of the moving disk 5 by moving the moving column 52 within the moving slot 41, the position of the sensor 63 in a certain direction may be too close to the driver. This problem can be avoided by extending the position of the sensor 63 by extending the push plate 62.

[0043] Specifically, the feature acquisition module is installed on the surface of the mobile disc 5. In this embodiment, it contains a plurality of acquisition units 6. The plurality of acquisition units 6 are uniformly arranged in a ring shape. Each acquisition unit 6 has the same structure, the base 61 is fixedly installed on the mobile disc 5, the push plate 62 is slidingly connected with the base 61, and the sliding direction and the extending direction of the push plate 62 are both the radial direction of the mobile disc 5. The sensor 63 is arranged on the push plate 62, which can be an angle sensor, an optical sensor, a shielding sensor, or a camera in the prior art, for directly acquiring the head angle data of the driver, thereby providing a data basis for the subsequent system judgment.

[0044] At the same time, the fitting degree of the lifting device is improved. In order to reduce the problem that a plurality of sensors 63 in a certain direction need to be adjusted individually, a common connecting piece 8 is arranged, the common connecting piece 8 is connected with at least two push plates 62, which can be elastic members with elastic contraction, and at least two push plates 62 can be driven to move at the same time, so that time is saved to achieve the purpose of rapid adjustment.

[0045] The system calculates the offset angle of the driver's head in real time through an algorithm, and compares it with three preset threshold values (a1, a2, and a3), thereby performing graded early warning.

[0046] When the offset angle of the driver's head is less than a1, the system determines that it is in a normal state, and no warning prompt is given; when the offset angle exceeds a1 but is less than a2, the system determines that it is in a slight danger, and a buzzer and a warning light installed on the mounting disc are used for warning; when the offset angle exceeds a2 but is less than a3, the system determines that it is in a moderate danger, and in addition to the buzzer and the warning light, the system will reduce the speed of the vehicle; when the offset angle exceeds a3, the system determines that it is in a severe danger, at this time, the buzzer and the warning light will be triggered, and the speed of the vehicle will be automatically reduced to a safe speed and the vehicle will be stopped.

[0047] On the other hand, an industrial vehicle is also provided, which comprises a main frame provided with a traveling device. The traveling device comprises traveling wheels, a steering wheel, etc. A vehicle body rod is arranged on the main frame, and the driver distraction early warning device described above is installed on the vehicle body rod, i.e., the connecting mouth 1 is connected with the vehicle body rod.

Claims

1. A driver distraction warning device for industrial vehicles, comprising a vehicle connection port (1) for connecting to the industrial vehicle, a connecting rod (2) connected to the vehicle connection port (1), and a feature acquisition module connected to the connecting rod (2), characterized in that: The connecting rod (2) is rotatably connected to an installation disk, the installation disk includes a base disk (4) and a movable disk (5) slidably connected to the base disk (4), the special acquisition module includes multiple acquisition units (6) installed on the surface of the movable disk (5), and each acquisition unit (6) includes a sensor (63).

2. The driver distraction warning device for industrial vehicles according to claim 1, characterized in that: Multiple sensors (63) are arranged in a ring array.

3. The driver distraction warning device for industrial vehicles according to claim 1, characterized in that: The acquisition unit (6) includes a base (61) mounted on the surface of the moving disk (5) and a push plate (62) slidably connected to the base (61). The sensor (63) is mounted on the push plate (62), and the moving direction of the push plate (62) is the radial direction of the moving disk (5).

4. The driver distraction warning device for industrial vehicles according to claim 3, characterized in that: It also includes a coupling (8) that connects at least two of the push plates (62).

5. The driver distraction warning device for industrial vehicles according to claim 1, characterized in that: The base plate (4) includes a moving groove (41), and the moving plate (5) includes a plate body (52) and a moving column (51) connected to the plate body (52).

6. The driver distraction warning device for industrial vehicles according to claim 5, characterized in that: The moving slot (41) contains multiple single slots, which converge at the center of the base plate (4) and are evenly spaced.

7. The driver distraction warning device for industrial vehicles according to claim 6, characterized in that: The cross-section of the movable column (51) is square.

8. The driver distraction warning device for industrial vehicles according to claim 1, characterized in that: It also includes a fastening device (3) for assisting in connecting and securing the connecting port (1) to the industrial vehicle.

9. The driver distraction warning device for industrial vehicles according to claim 8, characterized in that: The auxiliary device (3) includes a slide rail (31) connected to the connecting port (1), a slide plate one (32) and a slide plate two (33) slidably connected to the slide rail (31), and a slot (34) for the slide plate one (32) to be inserted on the slide plate two (33).

10. The driver distraction warning device for industrial vehicles according to claim 1, characterized in that: The connecting rod (2) includes a first rod (21) connected to the connecting port (1) and a second rod (22) slidably connected to the first rod (21), and the mounting plate is connected to the second rod (22).

11. The driver distraction warning device for industrial vehicles according to claim 10, characterized in that: The second rod (22) includes a plurality of positioning ports (221) arranged in the height direction. The first rod (21) is connected to a pull rod (23) for inserting into the positioning port (221). A spring (24) is sleeved on the pull rod (23).

12. The driver distraction warning device for industrial vehicles according to claim 1, characterized in that: The base plate (4) is provided with a rotating shaft (71) rotatably connected to the connecting rod (2) and a locking plate (72) for contacting the rotating shaft (71) to prevent it from rotating.

13. An industrial vehicle, comprising a main frame, wherein a traveling device is provided on the main frame, characterized in that: The main frame is equipped with a driver distraction warning device for industrial vehicles as described in any one of claims 1-12.

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