TRANSPORTER AND METHOD FOR TRANSPORTING OBJECT
20230047081 · 2023-02-16
Inventors
Cpc classification
G05D1/0214
PHYSICS
International classification
Abstract
Transporters and methods for transporting an object. The transporter includes a carrier comprising a plurality of coupling members; a support assembly adapted to support the carrier; and a plurality of automatic guided vehicles configured to obtain kinematic information from a leading automatic guided vehicle of the plurality of automatic guided vehicles. Each of the plurality of automatic guided vehicles includes a carrier connecting member coupled to the respective coupling member of the carrier to enable the carrier to move with the plurality of automatic guided vehicles; and a patrol assembly adapted to enable the respective automatic guided vehicle to move along the predetermined path.
Claims
1. A transporter comprising: at least one carrier comprising a plurality of coupling members ; a support assembly adapted to support the carrier and enable the carrier to transport an object along a predetermined path; and a plurality of automatic guided vehicles connected to each other in a wired or wireless manner and configured to obtain kinematic information from one of the plurality of automatic guided vehicles designated as a leading automatic guided vehicle (1023), wherein each of the plurality of automatic guided vehicles comprises: a carrier connecting member coupled to a respective coupling member of the plurality of coupling members to enable the carrier to move with the plurality of automatic guided vehicles; and a patrol assembly adapted to enable a respective automatic guided vehicle of the plurality of automatic guided vehicles to move along the predetermined path.
2. The transporter of claim 1, wherein the leading automatic guided vehicle configured to provide the kinematic information based at least on a radian of the predetermined path and a positional relationship between the plurality of coupling members relative to the predetermined path (202).
3. The transporter of claim 1, wherein any other of the plurality of automatic guided vehicles can be re-designated as the leading automatic guided vehicle during a transportation of the object in case of a failure of the previously designated leading automatic guided vehicle (1023).
4. The transporter of claim 1, wherein the at least one carrier comprises: a plurality of carriers connected in series via connecting members arranged between the plurality of carriers.
5. The transporter of claim 3, wherein the connecting members each comprise a coupling portion adapted to be coupled to the carrier connecting member of the respective automatic guided vehicle.
6. The transporter of claim 1, wherein the plurality of automatic guided vehicles are arranged in at least two columns along a direction parallel to the predetermined path.
7. The transporter of claim 1, wherein the plurality of automatic guided vehicles each comprise a monitoring member configured to provide safety information indicating whether an obstacle is within a predetermined range, and wherein the leading automatic guided vehicle is configured to provide the kinematic information to the plurality of automatic guided vehicles further based on the safety information from the plurality of automatic guided vehicles.
8. The transporter of claim 7, wherein the predetermined range is adjustable.
9. The transporter of claim 1, further comprising: a scheduling member configured to provide scheduling information on the predetermined path and a destination for the object to the leading automatic guided vehicle.
10. The transporter of claim 9, wherein the plurality of automatic guided vehicles comprise at least two distance detection members each configured to provide distance information on a distance from the respective distance detection member to a reference marker, and wherein the leading automatic guided vehicle is configured to, in response to a request of lateral movement of the transporter, generate the kinematic information indicating the lateral movements based on the distance information.
11. The transporter of claim 1, wherein the kinematic information indicates speeds of the plurality of automatic guided vehicles, moving directions of the plurality of automatic guided vehicles, or both the speeds and the moving directions of the plurality of automatic guided vehicles.
12. A method of transporting an object, comprising: obtaining scheduling information indicating a predetermined path for at least one carrier carrying the object, the carrier comprising a plurality of coupling members coupled to respective carrier connecting members of a plurality of automatic guided vehicles, the plurality of automatic guided vehicles connected to each other in a wired or wireless manner; generating kinematic information for the plurality of automatic guided vehicles based on the obtained scheduling information; and providing the kinematic information to each of the plurality of automatic guided vehicles to cause each of the plurality of automatic guided vehicles to move along the predetermined path.
13. The method of claim 12, wherein generating the kinematic information comprises: generating the kinematic information based at least on a radian of the predetermined path and a positional relationship between the plurality of coupling members relative to the predetermined path.
14. The method of claim 12, wherein generating the kinematic information comprises: generating the kinematic information based on the safety information indicating whether an obstacle is within a predetermined range.
15. The method of claim 12, wherein obtaining the scheduling information comprises: obtaining the scheduling information indicating the predetermined path and a destination for the object from a scheduling member.
16. The method of claim 12, wherein generating the kinematic information comprises: in response to a request of lateral movement of the transporter, generating the kinematic information indicating the lateral movements based on a distance information on a distance from a distance detection member to a reference marker.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and other objectives, features and advantages of the present disclosure will become more apparent through more detailed depiction of example embodiments of the present disclosure in conjunction with the accompanying drawings, wherein in the example embodiments of the present disclosure, same reference numerals usually represent same components.
[0025]
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[0033] Throughout the drawings, the same or similar reference symbols are used to indicate the same or similar elements.
DETAILED DESCRIPTION
[0034] The present disclosure will now be discussed with reference to several example embodiments. It is to be understood these embodiments are discussed only for the purpose of enabling those persons of ordinary skill in the art to better understand and thus implement the present disclosure, rather than suggesting any limitations on the scope of the subject matter.
[0035] As used herein, the term "comprises" and its variants are to be read as open terms that mean "comprises, but is not limited to." The term "based on" is to be read as "based at least in part on." The term "one embodiment" and "an embodiment" are to be read as "at least one embodiment." The term "another embodiment" is to be read as "at least one other embodiment." The terms "first," "second," and the like may refer to different or same objects. Other definitions, explicit and implicit, may be comprised below. A definition of a term is consistent throughout the description unless the context clearly indicates otherwise.
[0036] One conventional solution to transport objects of large size with an automatic guided vehicle involves a towing-type transporter. The towing-type transporter uses an automatic guided vehicle and a trailer towed by the automatic guided vehicle at one end of the trailer. That is, another end of the trailer lacks support by the automatic guided vehicle to form a “null rear end”. Due to this towing structures of the transporter, the vibration on the automatic guided vehicle will be amplified and applied on the carrier, resulting in a large vibration of the trailer, which impairs the transportation and quality of the transported objects.
[0037] Furthermore, the pivoting structure of the automatic guided vehicle at the front end of the carrier results in a larger rear area passed by the rear of the carrier than the front area passed by the front when turning. Furthermore, the front safety means aiming to monitor the front area cannot completely cover the rear area. Due to the lack of rear safety means for monitoring the rear area, there is a risk of harm to people or items within the rear area when the transporter turns.
[0038] Moreover, conventional solutions also include a type of transporter using a large automatic guided vehicle to transport objects of large sizes. By using the large automatic guided vehicle with a size slightly larger than or similar to the size of a carrier supported by the automatic guided vehicle, the objects of large sizes can be transported.
[0039] However, for this type of transporter, the automatic guided vehicle needs to be replaced with different objects to be transported. The poor adaptability of this type of transporter leads to high costs in a case where objects of various sizes need to be transported. Moreover, the large automatic guided vehicles with different sizes require a lot of parking or storage space, resulting in wasted space and inconvenience.
[0040] In order to at least partially address the above and other potential problems, embodiments of the present disclosure provide a transporter and a method of transporting an obj ect.
[0041]
[0042] As shown, in general, the transporter 100 according to embodiments of the present disclosure comprise at least one carrier 101, a support assembly 103 for supporting the carrier 101 and a plurality of automatic guided vehicles 102.
[0043] The support assembly 103 in some embodiments may comprise carter wheels 1031 or universal wheels which enable the carrier 101 to transport the object along a predetermined path 202. The use of carter wheels 1031 or universal wheels improves steering freedom and flexibility of the carrier 101. It is to be understood that the above embodiments where the support assembly 103 comprises carter wheels 1031 or universal wheels are merely for illustrative purposes, without suggesting any limitation as to the scope of the present disclosure. Any other suitable support assembly 103 is also possible. For example, in some alternative embodiments, the support assembly 103 may also comprise track wheels or the like.
[0044] The carrier 101 is driven to move by the plurality of automatic guided vehicles 102. Each of the plurality of automatic guided vehicles 102 may be a standard automatic guided vehicle 102 with the same specifications and configuration. According to embodiments of the present application, with the standard automatic guided vehicle 102, objects of various sizes can be transported by the transporter 100. To this end, the only component that needs to be adjusted or replaced to adapt to different objects is the carrier 101, which is easily manufactured with relatively low costs. That is, the size and/or shape of the carrier 101 may be easily adjusted to meet the requirements of objects of different sizes and shapes, which will be discussed in detail below.
[0045] The carrier 101 comprises a plurality of coupling members 1011 to drive the automatic guided vehicle 102 to the carrier 101. The automatic guided vehicles 102 each comprise a carrier connecting member 1021 coupled to the respective coupling member 1011, as shown in
[0046] In some embodiments, the carrier connecting member 1021 may comprise a pin that can be lifted or lowered manually or automatically. In addition, the coupling member 1011 may comprise an aperture for receiving the lifted pin. For example, to couple the automatic guided vehicles 102 to the carrier 101, each automatic guided vehicle 102 may be moved manually or automatically to a position where the pin is vertically aligned with the aperture of the carrier 101. Then the pin is lifted to insert into the aperture to achieve the coupling. In some embodiments, there is any suitable means such as an elastic member or the like arranged on the pin or in the aperture to reduce fit clearance there between.
[0047] With the above arrangements of the carrier connecting member 1021 and the coupling member 1011, the coupling of the carrier 101 and the automatic guided vehicle 102 is easier to achieve or control, thereby reducing control difficulty. In some embodiments, the coupling member 1011 may be arranged adjacent to ends of the carrier 101, as shown in
[0048] It is to be understood that the above embodiments where the carrier connecting member 1021 comprises the pin are discussed merely for illustrative purposes, without suggesting any limitation as to the scope of the present disclosure. Any other suitable arrangement or structure is also feasible. For example, in some alternative embodiments, the carrier connecting member 1021 and the coupling member 1011 may also employ magnetic arrangements which can be coupled to each other by magnetic force.
[0049] As mentioned above, the size and/or shape of the carrier 101 may be adjusted to meet the requirements of objects of different sizes and shapes. For example, in some embodiments, as shown in
[0050] In some embodiments, the number of the automatic guided vehicles 102 arranged in one column may be different from or equal to that of the automatic guided vehicles 102 arranged in the other columns. For example, in the case where the carrier 101 is of a triangular shape, there may be two automatic guided vehicles 102 arranged in one column and one automatic guided vehicles 102 arranged in another column.
[0051] Furthermore, the distance between the automatic guided vehicles 102 arranged in each column may be different or the same. For example, in the case where the carrier 101 is of a trapezoidal shape, the distance of two automatic guided vehicles 102 arranged in the column adjacent to the long side of the trapezoidal shape may be larger than those arranged adjacent to the short side.
[0052] In addition, the angle between adjacent two columns may also be zero or non-zero. That is, the columns may be parallel to each other or form a non-zero angle. For example, in the case where the carrier 101 is of the trapezoidal shape as mentioned above, two columns of the automatic guided vehicles 102 may be arranged along bevel sides of the trapezoidal shape.
[0053] In short, among the plurality of automatic guided vehicles 102, there are two automatic guided vehicles 102 as a necessary unit. Other automatic guided vehicles 102 (if any) than the two automatic guided vehicles 102 may be arranged, as an option, at any suitable positions according to the size and/or shape of the carrier 101.
[0054] Alternatively, it is also possible to arrange the automatic guided vehicles 102 in more than two columns. For example, in some embodiments, for the carrier 101 with a broader width, three or four columns of the automatic guided vehicles 102 may also be employed. Furthermore, the number of the automatic guided vehicles in each column is not limited to 2 as shown in
[0055] The plurality of automatic guided vehicles 102 can move according to kinematic information provided by the leading one of the automatic guided vehicles 102, thereby driving the carrier 101 to move, which will be discussed in detail below. Furthermore, the shape of the carrier 101 is not limited to the rectangle as shown in
[0056] In some embodiments, the at least one carrier 101 may comprise a plurality of carriers 101.
[0057] As shown in
[0058] In some embodiments, each connecting member 1013 may comprise a coupling portion 1014, as shown in
[0059] For example, if the carrier connecting member 1021 is coupled to the coupling member 1011 of the carrier 101, six automatic guided vehicles are needed for the three carriers 101. By contrast, if some carrier connecting members 1021 are coupled to the coupling portions 1014 of the connecting members 1013 as shown in
[0060] The automatic guided vehicles 102 each comprise patrol assemblies 1022 which enable the automatic guided vehicles 102 to separately travel along the predetermined path 202 according to the kinematic information, which will be discussed further below. Example implementations of the patrol assembly 1022 include, but are not limited to, a guide tape assembly, a laser target navigation assembly, or a wired or slotted assembly.
[0061] The plurality of automatic guided vehicles 102 are communicatively connected to each other in a wired or wireless manner. For example, the plurality of automatic guided vehicles 102 may be coupled to exchange data/information through Bluetooth, Wi-Fi, near field communication (NFC) and/or any suitable communication protocols. This arrangement can be conducive to the transmission of data between the plurality of automatic guided vehicles 102, thereby to facilitate the control to the plurality of automatic guided vehicles 102.
[0062] In some embodiments, one of the automatic guided vehicles 102 functions as a leading automatic guided vehicle 1023 to obtain scheduling information. The scheduling information at least indicates the predetermined path 202 along which the automatic guided vehicles 102 shall move. Such scheduling information can be provided by a scheduling member 104 of the transporter 100. The scheduling member 104 in some embodiments may be a control system such as a fleet management system used in a factory to manage or schedule production processes. In this way, only data communication between the scheduling member 104 and the leading automatic guided vehicle 1023 is required to obtain the scheduling information. As a result, the complexity of control of the transporter 100 can be significantly reduced. The scheduling member 104 may be coupled to the automatic guided vehicles 102 in a wired or wireless manner.
[0063] Actually, due to the same specifications and configuration of the plurality of automatic guided vehicles, as mentioned above, any of the plurality of automatic guided vehicles 102 can be designated as a leading automatic guided vehicle to obtain the scheduling information. For example, in the case where the transporter is moved in a moving direction indicated by the arrows as shown in
[0064] Similarly, for the case as shown in
[0065] During the transportation of the object, in case of a failure of the designated leading automatic guided vehicle 1023, any other of the plurality of automatic guided vehicles 102 can be re-designated as a new leading automatic guided vehicle 1023 to achieve the role of the leading automatic guided vehicle 1023. The failure of the designated leading automatic guided vehicle 1023 may comprise any error or defect that may affect the achievement of its role as a leading automatic guided vehicle. In this way, the flexibility of control and the reliability of transportation can be further improved.
[0066] As mentioned above, each automatic guided vehicle 102 can move according to respective kinematic information to transport objects. The kinematic information for each automatic guided vehicle 102 is provided by the leading automatic guided vehicle 1023.
[0067] At block 430, the generated kinematic information is then provided to the plurality of automatic guided vehicles 102. In some embodiments, the kinematic information may at least indicate speeds and/or moving directions of the plurality of automatic guided vehicles 102. Then the plurality of automatic guided vehicles 102 can be moved based on the kinematic information. During the transportation, the leading automatic guided vehicle 1023 may also obtain the status information from the plurality of automatic guided vehicles 102 and provide the status information to the scheduling member 104, for example.
[0068] The above processes will be described in detail below by using the embodiments as shown in
[0069] In the case as shown in
[0070] The automatic guided vehicles as shown in
[0071] Specifically, the positional relationship between the plurality of coupling members 1011 may comprise a distance of the coupling members 1011 away from the predetermined path 202. With the radian of the predetermined path 202 and the positional relationship being determined, the proportional relationship between speeds of the leading automatic vehicle 1023 and the automatic guided vehicles 102 (referred to as bias automatic guided vehicles for ease of discussion) which are not on the predetermined path 202 can be determined. Furthermore, the moving directions of the bias automatic guided vehicles 102 can also be determined. By providing the kinematic information indicating the determined speeds and moving directions to the bias automatic guided vehicles 102, their movements can be controlled in high coordination with the leading automatic guided vehicle 1023.
[0072] To improve the safety performance of the transporter 100, in some embodiments, each automatic guided vehicle 102 may comprise a monitoring member 1024, as shown in
[0073] The monitoring member 1024 can provide safe information indicating whether an obstacle is within the predetermined range 203. Then the leading automatic guided vehicle 1023 can provide the kinematic information to the plurality of automatic guided vehicles 102 further based on the safety information from all of the plurality of automatic guided vehicles 102. To this end, in some embodiments, the leading automatic guided vehicle 1023 may generate the kinematic information further based on the safety information indicating whether an obstacle is within a predetermined range 203. For example, if there are obstacles within the predetermined range 203 during transportation, which can be detected by the monitoring member 1024, the monitoring member 1024 then provides the safety information on the obstacles in the predetermined range 203 to the leading automatic guided vehicle 1023. Then the leading automatic guided vehicle 1023 provides the kinematic information on reducing the speeds of the automatic guided vehicle 102 to zero to improve the safety.
[0074] In some embodiments, the predetermined range 203 may be adjustable. For example, the adjusting of the predetermined range 203 can be achieved by adjusting an orientation of the respective automatic guided vehicle 102 according to the position of the automatic guided vehicle. As shown in
[0075] Alternatively or additionally, in some embodiments, the predetermined range 203 may also be adjusted by adjusting parameters of the monitoring member 1024 associated with a shape and size of a detection range of the monitoring member 1024. That is, the predetermined range 203 can be enlarged, reduced, shifted or adjusted to change a shape of the predetermined range 203 to cover the required detection range and thus to facilitate the detection. In some embodiments, the predetermined range 203 may also be adjusted to ignore a certain range to avoid false detection.
[0076] In some embodiments, the destination of transported objects may require lateral movement of the transporter 100 to facilitate the manufacture of the objects, for example. In this event, when the transporter 100 needs to move to a position laterally aligned with the destination, a request of the lateral movement of the transporter 100 may be generated. In the meantime, a distance between the transporter 100 and the destination needs to be detected. To this end, in some embodiments, the plurality of automatic guided vehicles 102 may comprise at least two distance detection members 1025. For example, the at least two distance detection members 1025 may be respectively arranged on the at least two automatic guided vehicles 102 at a leading position in the lateral movement direction. In some embodiments, all the automatic guided vehicles 102 may each comprise a distance detection member 1025, as shown in
[0077] The distance detection member 1025 may be located at a suitable portion of the automatic guided vehicle 102. For example, as shown in
[0078] In some embodiments, a reference marker 201 may be located adjacent to the destination as a reference for providing the distance information. Furthermore, the reference marker 201 may be any suitable structure. For example, the reference marker 201 may be a wall or an edge adjacent to the destination. In some alternative embodiments, the reference marker 201 may also be a virtual wall or a magnetic tape.
[0079] Each of the distance detection members 1025 of the automatic guided vehicles 102 at a leading position in the lateral movement direction can provide distance information on the obtained distance from the respective distance detection member 1025 to the reference marker 201. Then, in response to the request of lateral movements of the transporter 100, the leading automatic guided vehicle 1023 can generate and provide the kinematic information indicating the lateral movement based on the distance information. In this way, the transporter 100 can be moved to the destination accurately.
[0080] For example, as shown in
[0081] It can be seen from the above that by employing a carrier 101 with a suitable shape and size and a plurality of automatic guided vehicle 102, the adaptability of the transporter 100 can be significantly improved. Furthermore, the monitoring member 1024 of the automatic guided vehicle 102 can detect the rear area of the transporter 100, thereby improving the safety of the transporter 100.
[0082] It is to be understood that the order of the above steps does not mean that the method must be performed in that order, and the order in which these steps are performed can be adjusted or performed simultaneously.
[0083] It should be appreciated that the above detailed embodiments of the present disclosure are only to exemplify or explain principles of the present disclosure and not to limit the present disclosure. Therefore, any modifications, equivalent alternatives and improvements, etc. without departing from the spirit and scope of the present disclosure shall be comprised in the scope of protection of the present disclosure. Meanwhile, appended claims of the present disclosure aim to cover all the variations and modifications falling under the scope and boundary of the claims or equivalents of the scope and boundary.