Method for automatically adjusting weight of unmanned delivery vehicle and unmanned delivery vehicle

Abstract

The present invention relates to a method for automatically adjusting the weight of an unmanned delivery vehicle and an unmanned delivery vehicle, wherein the method for automatically adjusting the weight of an unmanned delivery vehicle comprises: a step of randomly placing a plurality of goods into each cargo box of the unmanned delivery vehicle; a step of a detection element automatically measuring the weight of the goods in each cargo box; a step of a processing unit receiving the weight information measured by the detection element, and processing each weight information and issuing an instruction; and a step of a motion control unit receiving an instruction issued by the processing unit, moving and adjusting the position of the cargo box to achieve a balanced weight distribution of the unmanned delivery vehicle. The present invention can automatically measure the weight of the goods in the cargo box, automatically control the movement of cargo boxes of different weights, balance the weight of the vehicle as a whole, and avoid the occurrence of unstable center of gravity of the vehicle, vehicle rollover, and the like.

Description

Technical Field

[0001] The present invention relates to the field of logistics and warehousing, and in particular to a method for automatically adjusting the weight of an unmanned delivery vehicle and an unmanned delivery vehicle. Background Art

[0002] In recent years, smart logistics has received great attention from the logistics industry and the e-commerce industry, and unmanned delivery has also become a hot topic in the field of technology research. At present, unmanned delivery vehicles have realized the function of automatically delivering express to the user's address, but stability and safety issues have become the focus of operators.

[0003] The current unmanned delivery vehicles are equipped with multiple cargo boxes for different goods. The delivery station staff randomly puts a certain amount of goods into each cargo box of the unmanned delivery vehicle, and the delivery vehicle loads the goods and delivers them to the user's address. However, the delivery staff randomly distributes the goods to the cargo boxes of the unmanned delivery vehicle, which often leads to an unbalanced weight of the entire cargo box of the unmanned delivery vehicle. If the weight difference of the goods is large, the center of gravity of the vehicle is unstable. If the road surface is uneven or slightly sloping during operation, it will bring safety hazards to the normal driving of the vehicle. Therefore, how to balance the weight of the entire cargo box of the unmanned delivery vehicle has become a technical problem that technicians in this field need to solve. Summary of the invention

[0004] One of the objectives of the present invention is to provide a method for automatically adjusting the weight of an unmanned delivery vehicle to avoid an unstable center of gravity of the vehicle and an unmanned delivery vehicle.

[0005] Some embodiments of the present invention provide a method for automatically adjusting the weight of an unmanned delivery vehicle, which includes: a step of randomly placing multiple goods into each cargo box of the unmanned delivery vehicle; a step of a detection element automatically measuring the weight of the goods in each cargo box; a step of a processing unit receiving weight information measured by the detection element, and processing each weight information and issuing instructions; and a step of a motion control unit receiving an instruction issued by the processing unit, moving and adjusting the position of the cargo box to achieve balanced weight distribution of the unmanned delivery vehicle.

[0006] Optionally, in the step where the processing unit receives weight information measured by the detection element, processes each weight information and issues instructions: the processing unit sorts each weight information, generates instructions to move and adjust each cargo box in the order of weight information from large to small, so as to move the cargo box to the first side of the unmanned delivery vehicle or the second side opposite to the first side.

[0007] Optionally, in the step where the processing unit receives weight information measured by the detection element, processes each weight information and issues instructions: when a cargo box is respectively provided on the first side and the second side of the unmanned delivery vehicle: the two cargo boxes with the smallest weight difference are respectively moved to the first side and the second side of the unmanned delivery vehicle.

[0008] Optionally, each cargo box is moved and adjusted in order of weight information from large to small, and an instruction to move the cargo box to the first side of the unmanned delivery vehicle or the second side opposite to the first side is generated, including: when two cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle: move the first heavy cargo box to the first side of the unmanned delivery vehicle; move the second heavy cargo box to the second side of the unmanned delivery vehicle; move the third heavy cargo box to the second side of the unmanned delivery vehicle; compare the total weight G1 of the cargo boxes on the first side with the total weight G2 of the cargo boxes on the second side, and move the cargo box among the remaining cargo boxes that can minimize the difference between G1 and G2 to the first side of the unmanned delivery vehicle.

[0009] Optionally, each cargo box is moved and adjusted in order of weight information from large to small, and an instruction to move the cargo box to the first side of the unmanned delivery vehicle or the second side opposite to the first side is generated, including: when three or more cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle: move the first heavy cargo box to the first side of the unmanned delivery vehicle; move the second heavy cargo box to the second side of the unmanned delivery vehicle; move the third heavy cargo box to the second side of the unmanned delivery vehicle; compare the total weight G1 of the cargo boxes on the first side with the total weight G2 of the cargo boxes on the second side, move the next heaviest cargo box to the lightest side of the unmanned delivery vehicle, and move the cargo boxes in this way until one side of the unmanned delivery vehicle is moved; compare G1 with G2, and move the cargo box among the remaining cargo boxes that can minimize the difference between G1 and G2 to the other side of the unmanned delivery vehicle, so that the other side of the unmanned delivery vehicle is moved.

[0010] Optionally, when three or more cargo boxes are arranged on the first side and the second side of the unmanned delivery vehicle, the cargo box at the middle position of each side of the unmanned delivery vehicle is heavier than the cargo boxes at other positions on that side.

[0011] Some embodiments of the present invention provide an unmanned delivery vehicle, which is used to implement the method for automatic weight adjustment of the unmanned delivery vehicle as described above, wherein the unmanned delivery vehicle comprises: a vehicle body; a cargo box, movably disposed on the vehicle body; a detection element, disposed on the cargo box, for detecting the weight of the cargo in the cargo box; a processing unit, for receiving and processing the weight information issued by the detection element and issuing instructions; and a motion control unit, for receiving the instructions issued by the processing unit and moving the cargo box to a designated position.

[0012] Optionally, the motion control unit includes a conveying device, which includes: a transverse conveying device for driving the cargo box to move transversely; and a longitudinal conveying device for driving the cargo box to move longitudinally.

[0013] Optionally, the motion control unit includes a locking mechanism, which includes: a first locking mechanism for locking or unlocking the cargo box and the transverse conveying device; and a second locking mechanism for locking or unlocking the cargo box and the longitudinal conveying device.

[0014] Optionally, the locking mechanism includes a locking tongue provided on the conveying device, and the locking tongue is configured to receive a signal to pop up to lock with the cargo box, and also to receive a signal to retract to unlock with the cargo box.

[0015] Optionally, the vehicle body includes a first side and a second side that are arranged opposite to each other, and a front side and a rear side that are arranged opposite to each other; the number of cargo boxes arranged on the first side is the same as that on the second side; and the number of cargo boxes arranged on the front side is the same as that on the rear side.

[0016] Optionally, a space is reserved in the middle of the vehicle body for the cargo box to move.

[0017] Based on the above technical solution, the present invention has at least the following beneficial effects:

[0018] In some embodiments, the unmanned delivery vehicle is equipped with a detection element, a processing unit and a motion control unit. The detection element can automatically measure the weight of the cargo in the cargo box, and the processing unit can automatically process the weight information and issue instructions to adjust the position of the cargo box, and start the motion control unit. The motion control unit automatically drives the movement of cargo boxes of different weights to balance the overall weight of the vehicle and avoid the occurrence of unstable center of gravity, vehicle rollover, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of an embodiment of a cargo box provided on an unmanned delivery vehicle provided by the present invention;

[0021] Figure 2 for Figure 1 A partial structural block diagram of the illustrated embodiment;

[0022] Figure 3 for Figure 1 A schematic diagram of a method for automatically adjusting weight according to the embodiment shown;

[0023] Figure 4 Schematic diagram of a processing unit and a motion control unit provided for some embodiments of the present invention;

[0024] Figure 5A schematic diagram of an embodiment of the unmanned delivery vehicle provided by the present invention (the "lock" in the figure is an abbreviation for the locking mechanism).

[0025] Numbers in the attached drawings:

[0026] A, B, C, D, E, F, G, H - positions of cargo boxes;

[0027] 11-Longitudinal locking mechanism for cargo box at position A; 12-Transverse locking mechanism for cargo box at position A;

[0028] The longitudinal locking mechanism of the cargo box at position 21-B; the transverse locking mechanism of the cargo box at position 22-B;

[0029] 31-C position cargo box longitudinal locking mechanism; 32-C position cargo box transverse locking mechanism;

[0030] 41-D position cargo box longitudinal locking mechanism; 42-D position cargo box transverse locking mechanism;

[0031] The longitudinal locking mechanism of the cargo box at position 51-E; the transverse locking mechanism of the cargo box at position 52-E;

[0032] The longitudinal locking mechanism of the cargo box at position 61-F; the transverse locking mechanism of the cargo box at position 62-F;

[0033] The longitudinal locking mechanism of the cargo box at position 71-G; the transverse locking mechanism of the cargo box at position 72-G;

[0034] The longitudinal locking mechanism of the cargo box at the 81-H position; the transverse locking mechanism of the cargo box at the 82-H position. DETAILED DESCRIPTION

[0035] The technical scheme in the embodiment will be described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0037] In the description of the following embodiments, the first side and the second side of the unmanned delivery vehicle correspond to the left and right sides along the vehicle's driving direction. The "front" in the front side of the unmanned delivery vehicle and the "rear" in the rear side correspond to the front and rear of the vehicle's driving direction, respectively.

[0038] Some embodiments provide a method for automatically adjusting the weight of an unmanned delivery vehicle, which includes:

[0039] The step of randomly placing multiple goods into each cargo box of the unmanned delivery vehicle;

[0040] The step of automatically measuring the weight of the cargo in each cargo box by the detection element;

[0041] The processing unit receives the weight information measured by the detection element, processes and calculates each weight information and issues instructions; and

[0042] The motion control unit receives instructions from the processing unit and moves and adjusts the position of the cargo box to achieve the step of balanced weight distribution of the unmanned delivery vehicle.

[0043] Since the delivery personnel load the goods into each cargo box of the unmanned delivery vehicle randomly, the center of gravity of the unmanned delivery vehicle may become unstable and the vehicle may roll over.

[0044] In some embodiments, the unmanned delivery vehicle is equipped with detection elements, processing units and motion control units, which can automatically measure the weight of the cargo in the cargo box, automatically control the movement of cargo boxes of different weights, balance the overall weight of the vehicle, and avoid the occurrence of unstable center of gravity, vehicle rollover, etc.

[0045] In some embodiments, in the step where the processing unit receives the weight information measured by the detection element, processes each weight information and issues an instruction:

[0046] The processing unit sorts the weight information and generates instructions for moving and adjusting the cargo boxes in the order of weight information from large to small, so as to move the cargo boxes to the first side of the unmanned delivery vehicle or to the second side opposite to the first side.

[0047] In some embodiments, the cargo box is moved to the first side of the unmanned delivery vehicle or the second side opposite to the first side according to instructions, thereby avoiding the impact of the randomness of cargo delivery on the vehicle's driving stability and avoiding the occurrence of vehicle rollover due to uneven cargo weight.

[0048] In some embodiments, in the step where the processing unit receives the weight information measured by the detection element, processes each weight information and issues an instruction:

[0049] When a cargo box is provided on the first side and the second side of the unmanned delivery vehicle:

[0050] Move the two cargo boxes with the smallest weight difference to the first side and the second side of the unmanned delivery vehicle respectively.

[0051] In some embodiments, each cargo box is moved and adjusted in descending order according to the weight information, and generating an instruction to move the cargo box to a first side of the unmanned delivery vehicle or a second side opposite to the first side includes:

[0052] When two cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle:

[0053] Moving the first heavy cargo box to the first side of the unmanned delivery vehicle;

[0054] Move the second heavy cargo box to the second side of the unmanned delivery vehicle;

[0055] Move the third heavy cargo box to the second side of the unmanned delivery vehicle;

[0056] The total weight G1 of the cargo box on the first side is compared with the total weight G2 of the cargo box on the second side, and the cargo box among the remaining cargo boxes that minimizes the difference between G1 and G2 is moved to the first side of the unmanned delivery vehicle.

[0057] In some embodiments, each cargo box is moved and adjusted in descending order according to the weight information, and generating an instruction to move the cargo box to a first side of the unmanned delivery vehicle or a second side opposite to the first side includes:

[0058] When three or more cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle:

[0059] Moving the first heavy cargo box to the first side of the unmanned delivery vehicle;

[0060] Move the second heavy cargo box to the second side of the unmanned delivery vehicle;

[0061] Move the third heavy cargo box to the second side of the unmanned delivery vehicle;

[0062] Compare the total weight G1 of the cargo boxes on the first side with the total weight G2 of the cargo boxes on the second side, move the next heaviest cargo box to the lighter side of the unmanned delivery vehicle, and move the cargo boxes in this way until one side of the unmanned delivery vehicle has been moved;

[0063] Compare G1 with G2, and move the remaining cargo box that minimizes the difference between G1 and G2 to the other side of the unmanned delivery vehicle, so that the other side of the unmanned delivery vehicle is moved completely.

[0064] In the above embodiment, when three or more cargo boxes are arranged on both the first side and the second side of the unmanned delivery vehicle:

[0065] Moving the first heavy cargo box to the first side of the unmanned delivery vehicle;

[0066] Move the second heavy cargo box to the second side of the unmanned delivery vehicle;

[0067] Move the third heavy cargo box to the second side of the unmanned delivery vehicle;

[0068] Compare the total weight G1 of the first side cargo box with the total weight G2 of the second side cargo box,

[0069] 1) If G1 > G2, move the fourth heavy cargo box to the second side of the unmanned delivery vehicle;

[0070] If the second side is completely moved, G1 is compared with G2, and the cargo box that minimizes the difference between G1 and G2 is moved to the first side, so that the first side is completely moved;

[0071] If the second side has not been moved, continue to compare G1 with G2 and move the next heaviest box to the lightest side. Move the boxes in this way until one side of the unmanned delivery vehicle has been moved.

[0072] Compare G1 with G2, and move the cargo box with the smallest difference between G1 and G2 to the other side of the unmanned delivery vehicle, completing the movement of the other side.

[0073] 2) If G1<G2, move the fourth cargo box to the first side of the unmanned delivery vehicle;

[0074] Continue to compare G1 with G2, move the next heaviest box to the lighter side, and move the boxes in this way until one side of the unmanned delivery vehicle has been moved;

[0075] Compare G1 with G2, and move the cargo box with the smallest difference between G1 and G2 to the other side of the unmanned delivery vehicle, completing the movement of the other side.

[0076] In some embodiments, when three or more cargo boxes are arranged on both the first side and the second side of the unmanned delivery vehicle, the cargo box in the middle of each side is heavier than the cargo boxes in other positions of the side. A heavier cargo box is placed in the middle of each side of the unmanned delivery vehicle to prevent the vehicle body from tilting.

[0077] Some embodiments provide an unmanned delivery vehicle, which can be used to implement the method for automatically adjusting the weight of an unmanned delivery vehicle of any of the above embodiments. The unmanned delivery vehicle includes a vehicle body, a cargo box, a detection element, a processing unit, and a motion control unit.

[0078] The cargo box is movably arranged on the vehicle body.

[0079] The detection element is arranged in the cargo box, and is used for detecting the weight of the cargo in the cargo box and sending the weight information to the processing unit.

[0080] The processing unit is used to receive and process the weight information sent by the detection element and send instructions to the motion control unit to control the motion control unit to move the cargo box.

[0081] The motion control unit is used to receive instructions from the processing unit and move the cargo box to a specified location.

[0082] In some embodiments, the vehicle body includes a first side and a second side disposed oppositely, and a front side and a rear side disposed oppositely. The number of cargo boxes disposed on the first side is the same as that on the second side. The number of cargo boxes disposed on the front side is the same as that on the rear side.

[0083] In some embodiments, a space is reserved in the middle of the vehicle body for the cargo box to move.

[0084] In some embodiments, the space reserved in the middle of the vehicle body for moving a cargo box may be the space of a cargo box. In this case, the purpose of moving a designated cargo box to a designated position can be achieved by moving and adjusting multiple cargo boxes multiple times.

[0085] In some embodiments, the detection element includes a weight sensor.

[0086] In some embodiments, the motion control unit includes a conveying device, and the conveying device includes a transverse conveying device and a longitudinal conveying device.

[0087] Among them, the transverse conveying device is used to drive the cargo box to move transversely.

[0088] The longitudinal conveying device is used to drive the cargo box to move longitudinally.

[0089] In some embodiments, the unmanned delivery vehicle includes at least two cargo boxes, and each cargo box is correspondingly configured with a horizontal conveying device and a longitudinal conveying device.

[0090] In some embodiments, the conveying device includes a conveyor belt or a conveyor chain, etc.

[0091] In some embodiments, the conveyor includes a motor for providing power.

[0092] In some embodiments, the motion control unit includes a locking mechanism including a first locking mechanism and a second locking mechanism.

[0093] The first locking mechanism is used to lock or unlock the cargo box and the transverse conveying device.

[0094] The second locking mechanism is used to lock or unlock the cargo box and the longitudinal conveying device.

[0095] In some embodiments, the locking mechanism includes a locking tongue provided on the conveying device, and the locking tongue is configured to receive a signal to pop up to lock with the cargo box, and also receive a signal to retract to unlock with the cargo box.

[0096] In some embodiments, the locking structure includes a solenoid switch.

[0097] In such Figure 1 In a specific embodiment of the unmanned delivery vehicle shown, the first side of the unmanned delivery vehicle has three positions for setting cargo boxes, namely position A, position B and position C. The second side of the unmanned delivery vehicle has three positions for setting cargo boxes, namely position F, position G and position H. The front of the unmanned delivery vehicle has three positions for setting cargo boxes, namely position C, position E and position H; the rear of the unmanned delivery vehicle has three positions for setting cargo boxes, namely position A, position D and position F. The middle of the unmanned delivery vehicle has a reserved space for moving and adjusting the position of the cargo box.

[0098] In such Figure 2 In a specific embodiment of the unmanned delivery vehicle shown, detection elements are set in the cargo boxes at positions A, B, C, D, E, F, G and H of the unmanned delivery vehicle, and the detection elements can be weight sensors. The cargo weight information measured by each weight sensor is sent to the processing unit, which receives and processes the weight information sent by each weight sensor and sends instructions to the motion control unit to control the motion control unit to move the cargo box.

[0099] Each cargo box has a weight detection function that can measure the weight of the goods in each cargo box. Each cargo box can be moved to any position of the unmanned delivery vehicle. When the delivery personnel randomly put the goods into the cargo box at the AH position, the weight sensor in the cargo box measures the weight of the goods in each cargo box and sends it to the processing unit. The processing unit reads the weight information of the goods in each cargo box and sorts them. According to the weight information of the goods, the motion control unit is used to move the cargo box to the corresponding position to achieve a reasonable distribution of the weight of the goods.

[0100] In such Figure 3 In a specific embodiment of the unmanned delivery vehicle shown, the weight of the goods in each cargo box is measured by each detection element and sorted:

[0101] Move the first heavy cargo box to position B on the first side of the unmanned delivery vehicle;

[0102] Move the second heavy cargo box to position G on the second side of the unmanned delivery vehicle;

[0103] Move the third cargo box to position H on the second side of the unmanned delivery vehicle;

[0104] Compare the weight of the cargo box at position B (the total weight of the cargo box on the first side, G1) with the weight of the cargo box at position G + the weight of the cargo box at position H (the total weight of the cargo box on the second side, G2);

[0105] 1) If B〉G+H, move the fourth heavy cargo box to position F on the second side of the unmanned delivery vehicle;

[0106] Move the remaining cargo boxes that will make the weight of the two sides of the unmanned delivery vehicle closest to each other to the A position and the C position of the first side of the unmanned delivery vehicle. The following methods can be used:

[0107] Compare the weight of the cargo box at position B with the weight of the cargo box at position G + the weight of the cargo box at position H + the weight of the cargo box at position F;

[0108] If B〉G+H+F; comparing the remaining four cargo boxes, the cargo boxes with the closest weight on both sides of the unmanned delivery vehicle will be moved to positions A and C on the first side of the unmanned delivery vehicle;

[0109] If B〈G+H+F; move the fifth heavy cargo box to position A on the first side of the unmanned delivery vehicle; compare the weight of the cargo box at position B + the weight of the cargo box at position A with the weight of the cargo box at position G + the weight of the cargo box at position H + the weight of the cargo box at position F;

[0110] If A+B〉G+H+F; comparing the remaining three cargo boxes, the cargo box with the closest weight on both sides of the unmanned delivery vehicle will be moved to position C on the first side of the unmanned delivery vehicle; the remaining cargo boxes will be moved to positions D and E of the unmanned delivery vehicle at will;

[0111] If A+B〈G+H+F; move the sixth heaviest cargo box to position C on the first side of the unmanned delivery vehicle; or compare the remaining three cargo boxes, move the cargo box with the closest weight on both sides of the unmanned delivery vehicle to position C on the first side of the unmanned delivery vehicle; the remaining cargo boxes can be moved arbitrarily to positions D and E of the unmanned delivery vehicle.

[0112] 2) If B < G + H, move the fourth heavy cargo box to position A on the first side of the unmanned delivery vehicle;

[0113] Compare the weight of the cargo box at position A + the weight of the cargo box at position B with the weight of the cargo box at position G + the weight of the cargo box at position H;

[0114] If A+B〉G+H; move the fifth heavy cargo box to position F on the second side of the unmanned delivery vehicle; move the sixth heavy cargo box to position C on the first side of the unmanned delivery vehicle, or move the remaining cargo boxes that make the weights on both sides of the unmanned delivery vehicle closest to position C on the first side of the unmanned delivery vehicle; the remaining cargo boxes can be moved to position D and position E at will.

[0115] If A+B〈G+H; move the fifth heavy cargo box to position C on the first side of the unmanned delivery vehicle; move the sixth heavy cargo box to position F on the second side of the unmanned delivery vehicle, or move the remaining cargo boxes that make the weights on both sides of the unmanned delivery vehicle closest to position F on the second side of the unmanned delivery vehicle; the remaining cargo boxes can be moved to position D and position E at will.

[0116] In such Figure 4 In a specific embodiment of the unmanned delivery vehicle shown, the instructions issued by the processing unit reach six motion control units. Each motion control unit includes a motor and an electromagnetic switch. The motor is used to provide power for the conveying device, and the electromagnetic switch is a kind of locking mechanism for locking and unlocking the cargo box and the corresponding conveying device.

[0117] In such Figure 5 In one specific embodiment of the unmanned delivery vehicle shown,

[0118] The first motor provides power for the first conveying device. The first conveying device is provided with an A-position longitudinal locking mechanism 11 at the A-position cargo box, a D-position longitudinal locking mechanism 41 at the D-position cargo box, and an F-position longitudinal locking mechanism 61 at the F-position cargo box.

[0119] The second motor provides power for the second conveying device. The second conveying device is provided with a B-position longitudinal locking mechanism 21 at the B-position cargo box and a G-position longitudinal locking mechanism 71 at the G-position cargo box.

[0120] The third motor provides power for the third conveying device. The third conveying device is provided with a C-position longitudinal locking mechanism 31 at the C-position cargo box, an E-position longitudinal locking mechanism 51 at the E-position cargo box, and an H-position longitudinal locking mechanism 81 at the H-position cargo box.

[0121] The fourth motor provides power for the fourth conveying device. The fourth conveying device is provided with an F-position transverse locking mechanism 62 at the F-position cargo box, a G-position transverse locking mechanism 72 at the G-position cargo box, and an H-position transverse locking mechanism 82 at the H-position cargo box.

[0122] The fifth motor provides power for the fifth conveying device. The fifth conveying device is provided with a D-position transverse locking mechanism 42 at the D-position cargo box and an E-position transverse locking mechanism 52 at the E-position cargo box.

[0123] The sixth motor provides power for the sixth conveying device. The sixth conveying device is provided with an A-position transverse locking mechanism 12 at the A-position cargo box, a B-position transverse locking mechanism 22 at the B-position cargo box, and a C-position transverse locking mechanism 32 at the C-position cargo box.

[0124] Optionally, a box door may be provided in the middle of the vehicle body. Optionally, a longitudinal locking mechanism and a transverse locking mechanism may also be provided at the position corresponding to the box door.

[0125] The above-mentioned conveying device comprises a conveyor belt.

[0126] Six motors drive six conveyor belts to move the cargo boxes. The conveyor belts are set at the bottom of the cargo boxes. The positions corresponding to the cargo boxes at each position on each conveyor belt are respectively provided with longitudinal locking mechanisms and transverse locking mechanisms. The locking structure can be an electromagnetic switch. The electromagnetic switch includes a lock tongue. At the bottom of each cargo box, a concave hole is provided at the position corresponding to the lock tongue of the electromagnetic switch. When a high-level signal is given, the lock tongue pops up and can be extended into the concave hole to achieve the locking of the conveyor belt and the cargo box. At this time, the motor drives the conveyor belt to move, which can drive the corresponding cargo box to move. When a low-level signal is given, the lock tongue is retracted to achieve the unlocking of the conveyor belt and the cargo box.

[0127] For example, move the cargo box at position A downward by one grid. At this time, the motion control unit controls the longitudinal electromagnetic switch of the cargo box at position A to pop up, and other electromagnetic switches do not operate. At this time, the first motor drives the first conveying device to move, and the cargo box at position A starts to move downward.

[0128] Through the above method, combined with the control strategy, the movement control of the cargo box can be realized. When the cargo box moves to the door position before opening, the cargo box can be opened.

[0129] In the description of the present invention, it should be understood that "first weight", "second weight", "third weight" and "fourth weight" all refer to the order of weight. In the description of the present invention, other words such as "first", "second" and "third" are used to define components, which is only for the convenience of distinguishing the above components. If not otherwise stated, the above words have no special meanings and therefore cannot be understood as limiting the scope of protection of the present invention.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for automatically adjusting the weight of an unmanned delivery vehicle, characterized in that: include: The step of randomly placing multiple goods into each cargo box of the unmanned delivery vehicle; The step of automatically measuring the weight of the cargo in each cargo box by the detection element; The processing unit receives the weight information measured by the detection element, processes each weight information and issues instructions; as well as The motion control unit receives the instruction from the processing unit and moves and adjusts the position of the cargo box to achieve the step of balanced weight distribution of the unmanned delivery vehicle; wherein, The processing unit receives the weight information measured by the detection element, and the steps of processing each weight information and issuing instructions include: sorting each weight information by the processing unit, generating instructions for moving and adjusting each cargo box in the order of the weight information from large to small, so as to move the cargo box to the first side of the unmanned delivery vehicle or the second side opposite to the first side, and the instructions include: in the case where two cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle: Moving the first heavy cargo box to the first side of the unmanned delivery vehicle; Move the second heavy cargo box to the second side of the unmanned delivery vehicle; Move the third heavy cargo box to the second side of the unmanned delivery vehicle; The total weight G1 of the cargo box on the first side is compared with the total weight G2 of the cargo box on the second side, and the cargo box among the remaining cargo boxes that minimizes the difference between G1 and G2 is moved to the first side of the unmanned delivery vehicle.

2. A method for automatically adjusting the weight of an unmanned delivery vehicle, characterized in that: include: The step of randomly placing multiple goods into each cargo box of the unmanned delivery vehicle; The step of automatically measuring the weight of the cargo in each cargo box by the detection element; The processing unit receives the weight information measured by the detection element, processes each weight information and issues instructions; as well as The motion control unit receives the instruction from the processing unit and moves and adjusts the position of the cargo box to achieve the step of balanced weight distribution of the unmanned delivery vehicle; wherein, The processing unit receives the weight information measured by the detection element, and the steps of processing each weight information and issuing instructions include: sorting each weight information by the processing unit, generating instructions for moving and adjusting each cargo box in the order of the weight information from large to small, so as to move the cargo box to the first side of the unmanned delivery vehicle or the second side opposite to the first side, and the instructions include: in the case where three or more cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle: Moving the first heavy cargo box to the first side of the unmanned delivery vehicle; Move the second heavy cargo box to the second side of the unmanned delivery vehicle; Move the third heavy cargo box to the second side of the unmanned delivery vehicle; Compare the total weight G1 of the cargo boxes on the first side with the total weight G2 of the cargo boxes on the second side, move the next heaviest cargo box to the lighter side of the unmanned delivery vehicle, and move the cargo boxes in this way until one side of the unmanned delivery vehicle has been moved; Compare G1 with G2, and move the remaining cargo box that minimizes the difference between G1 and G2 to the other side of the unmanned delivery vehicle, so that the other side of the unmanned delivery vehicle is moved completely.

3. The method for automatically adjusting the weight of an unmanned delivery vehicle as claimed in claim 2, characterized in that: The moving the first heavy cargo box to the first side of the unmanned delivery vehicle includes moving the first heavy cargo box to a middle position on the first side of the unmanned delivery vehicle; Moving the second heavy cargo box to the second side of the unmanned delivery vehicle includes moving the second heavy cargo box to a middle position on the second side of the unmanned delivery vehicle.

4. An unmanned delivery vehicle, used to implement the method for automatically adjusting the weight of an unmanned delivery vehicle as claimed in claim 1, the unmanned delivery vehicle comprising: Vehicle body; A plurality of cargo boxes are movably arranged on the vehicle body; A detection element, provided in the plurality of cargo boxes, for detecting the weight of the cargo in each cargo box; The processing unit is used to receive and process each weight information sent by the detection element, sort each weight information, generate an instruction to move and adjust each cargo box in the order of weight information from large to small, so as to move the cargo box to the first side of the unmanned delivery vehicle or the second side opposite to the first side, and issue an instruction; the instruction includes: in the case where two cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle: Moving the first heavy cargo box to the first side of the unmanned delivery vehicle; Move the second heavy cargo box to the second side of the unmanned delivery vehicle; Move the third heavy cargo box to the second side of the unmanned delivery vehicle; Compare the total weight G1 of the first side cargo box with the total weight G2 of the second side cargo box, and move the cargo box that minimizes the difference between G1 and G2 among the remaining cargo boxes to the first side of the unmanned delivery vehicle; and The motion control unit is used to receive the instruction sent by the processing unit and move the cargo box to a specified position.

5. The unmanned delivery vehicle according to claim 4, characterized in that: The motion control unit includes a transmission device, and the transmission device includes: A transverse conveying device, used to drive the cargo box to move transversely; and The longitudinal conveying device is used to drive the cargo box to move longitudinally.

6. The unmanned delivery vehicle according to claim 5, characterized in that: The motion control unit includes a locking mechanism, and the locking mechanism includes: A first locking mechanism, used to achieve locking or unlocking of the cargo box and the transverse conveying device; and The second locking mechanism is used to lock or unlock the cargo box and the longitudinal conveying device.

7. The unmanned delivery vehicle according to claim 6, characterized in that: The locking mechanism comprises a locking tongue arranged on the conveying device, and the locking tongue is configured to receive a signal to pop up to lock with the cargo box, and also receive a signal to retract to unlock with the cargo box.

8. The unmanned delivery vehicle according to claim 4, characterized in that: The vehicle body comprises a first side and a second side disposed oppositely, and a front side and a rear side disposed oppositely; The number of cargo boxes arranged on the first side is the same as that on the second side; The number of cargo boxes arranged on the front side is the same as that on the rear side.

9. The unmanned delivery vehicle according to claim 4, characterized in that: A space for the cargo box to move is reserved in the middle of the vehicle body.

10. An unmanned delivery vehicle, used to implement the method for automatically adjusting the weight of an unmanned delivery vehicle as claimed in claim 2, comprising: Vehicle body; A plurality of cargo boxes are movably arranged on the vehicle body; A detection element, provided in the plurality of cargo boxes, for detecting the weight of the cargo in each cargo box; The processing unit is used to receive and process the weight information sent by the detection element, sort the weight information, generate an instruction to move and adjust the cargo boxes in the order of the weight information from large to small, so as to move the cargo boxes to the first side of the unmanned delivery vehicle or the second side opposite to the first side, and issue an instruction; the instruction includes: In the case where three or more cargo boxes are respectively arranged on the first side and the second side of the unmanned delivery vehicle: Moving the first heavy cargo box to the first side of the unmanned delivery vehicle; Move the second heavy cargo box to the second side of the unmanned delivery vehicle; Move the third heavy cargo box to the second side of the unmanned delivery vehicle; Compare the total weight G1 of the cargo boxes on the first side with the total weight G2 of the cargo boxes on the second side, move the next heaviest cargo box to the lighter side of the unmanned delivery vehicle, and move the cargo boxes in this way until one side of the unmanned delivery vehicle has been moved; Compare G1 with G2, and move the remaining cargo box that minimizes the difference between G1 and G2 to the other side of the unmanned delivery vehicle, so that the other side of the unmanned delivery vehicle is moved completely; and The motion control unit is used to receive the instruction sent by the processing unit and move the cargo box to a specified position.

11. The unmanned delivery vehicle according to claim 10, characterized in that: In the instruction, moving the first heavy cargo box to the first side of the unmanned delivery vehicle includes moving the first heavy cargo box to a middle position on the first side of the unmanned delivery vehicle; Moving the second heavy cargo box to the second side of the unmanned delivery vehicle includes moving the second heavy cargo box to a middle position on the second side of the unmanned delivery vehicle.

12. The unmanned delivery vehicle according to claim 10 or 11, characterized in that: The motion control unit includes a transmission device, and the transmission device includes: A transverse conveying device, used to drive the cargo box to move transversely; and The longitudinal conveying device is used to drive the cargo box to move longitudinally.

13. The unmanned delivery vehicle according to claim 12, characterized in that: The motion control unit includes a locking mechanism, and the locking mechanism includes: A first locking mechanism, used to achieve locking or unlocking of the cargo box and the transverse conveying device; and The second locking mechanism is used to lock or unlock the cargo box and the longitudinal conveying device.

14. The unmanned delivery vehicle according to claim 13, characterized in that: The locking mechanism comprises a locking tongue arranged on the conveying device, and the locking tongue is configured to receive a signal to pop up to lock with the cargo box, and also receive a signal to retract to unlock with the cargo box.

15. The unmanned delivery vehicle according to claim 10 or 11, characterized in that: The vehicle body comprises a first side and a second side disposed oppositely, and a front side and a rear side disposed oppositely; The number of cargo boxes arranged on the first side is the same as that on the second side; The number of cargo boxes arranged on the front side is the same as that on the rear side.

16. The unmanned delivery vehicle according to claim 10 or 11, characterized in that: A space for the cargo box to move is reserved in the middle of the vehicle body.

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