Infrared-based cargo tray detection system
Through the combination of infrared imager and height detection module, the accurate detection of the overall size of pallets and goods is achieved, and the problem of collision between goods and shelves caused by manual estimation is solved, which improves detection accuracy and efficiency and reduces production costs.
Patent Information
- Application Number
- CN202422711286.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the prior art, the overall size detection of pallets and goods depends on manual estimation, resulting in an increase in the possibility of collision between goods and shelves, and the detection accuracy and efficiency are low, so the corresponding shelves cannot be accurately found.
The infrared-based cargo pallet detection system is adopted, including a support frame, pallet guide, infrared imager, radiographic photoelectric switch and control module. The overall dimensions of the cargo and pallets are accurately detected through the infrared imager and height detection module, and shelf classification and early warning are carried out through the control module.
It improves detection accuracy and efficiency, reduces the possibility of goods colliding with shelves, is simple to operate, and reduces production costs.
Smart Images
Figure CN223279827U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a warehouse detection system, in particular to an infrared-based cargo pallet detection system. Background Art
[0002] In warehouse management, larger goods generally need to be placed on pallets, and then the pallets carrying the goods are placed on the shelves in the warehouse. Before storage, the cargo information on the pallet and the overall size of the pallet and the goods need to be inspected, and then placed on the corresponding shelves according to the corresponding sizes. In the existing technology, the overall size of the pallet and the goods is often roughly estimated by visual inspection by the staff. This method heavily relies on the experience and responsibility of the staff, and often involves increased inspections. If the overall size of the goods and the pallet is larger than the size of the corresponding shelf, it is easy to cause collisions between the goods and the shelf (this is because forklifts and other tools are generally used for storage and retrieval. If the accuracy of the cargo size detection is inaccurate, it is easy to cause collisions), thereby causing damage to the goods, and being unable to interact with the user or enter the next step of the process (for example, the goods are intermediate products of a certain product).
[0003] Therefore, in order to solve the above technical problems, it is urgent to propose a new technical means. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide an infrared-based cargo pallet detection system, which accurately detects the overall dimensions of the cargo and the pallet carrying the cargo before the cargo is stored, thereby facilitating the subsequent accurate finding of the corresponding shelf and effectively reducing the possibility of collision between the cargo and the shelf during the storage and retrieval process. Compared with the existing technology, the detection accuracy is higher, the efficiency is higher, and the operation is simple, the use is convenient, and the production cost can be reduced.
[0005] The utility model provides an infrared-based cargo pallet detection system, comprising a support frame and pallet guide rails;
[0006] The support frame is fixedly installed on the ground. The support frame is a rectangular parallelepiped structure formed by four columns and a crossbeam. There are two tray guide rails that are arranged in parallel. The distance between the tray guide rails is greater than the width of the tray. The inlet ends of the two tray guide rails are respectively fixed with baffles that are inclined to the tray guide rails.
[0007] The two baffles are tilted in opposite directions to form an eight-shaped structure;
[0008] It also includes a detection unit for detecting the size of the goods on the pallet, the detection unit including a height detection module, an infrared imager and a control module;
[0009] The infrared imager is fixedly mounted on the crossbeam of the support frame, and the height detection module is mounted on the column of the support frame. The output ends of the infrared imager and the height detection module are both connected to the input end of the control module. The control module is used to classify cargo pallets into shelves according to the height and lateral dimensions of the cargo and display an early warning.
[0010] Furthermore, the height detection module is a beam-type photoelectric switch, and the transmitter and receiver of the beam-type photoelectric switch are respectively arranged on the diagonal columns of the support frame;
[0011] The height detection modules are multiple and are arranged on the columns of the support frame at equal intervals.
[0012] Furthermore, the control module includes an industrial control host, a server, an alarm and a display;
[0013] The input end of the industrial control host is connected to the output ends of the height detection module and the infrared imager, the control output end of the industrial control host is connected to the alarm and the display respectively, and the industrial control host is in communication connection with the server.
[0014] Furthermore, the alarm is an audible and visual alarm, and the alarm is arranged on a column of the supporting frame.
[0015] Furthermore, the detection unit also includes a label code scanner, which is fixedly arranged at the entrance end of the guide rail, and the output end of the label code scanner is connected to the industrial control host. The label code scanner is used to scan the label code information attached to the side of the cargo pallet, and the label code information marks the basic information of the cargo.
[0016] Furthermore, a resistance pressure strain gauge is provided on the inner side wall of the baffle, and the resistance pressure strain gauge is connected to a resistance voltage divider detection circuit for detecting whether the cargo pallet collides with the baffle, and the output end of the resistance voltage divider detection circuit is connected to the industrial control host.
[0017] Furthermore, it also includes a power control switch, which is used to control the on and off of the power supply circuit of the detection unit, and the power switch is fixedly arranged on the column of the support frame.
[0018] Furthermore, the detection unit also includes a position detection module for detecting whether the cargo pallet is pushed into place. The position detection module is a diffuse reflection photoelectric switch, and the output end of the diffuse reflection photoelectric switch is connected to the input end of the industrial control host.
[0019] The beneficial effects of the present invention are as follows: through the present invention, the overall dimensions of the goods and the pallets carrying the goods can be accurately detected before the goods are stored, which is conducive to accurately finding the corresponding shelves later, and effectively reduces the possibility of collision between the goods and the shelves during the storage and retrieval process. Compared with the existing technology, the present invention has higher detection accuracy and higher efficiency, and is simple to operate and easy to use, which can reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0021] Figure 1 It is a structural diagram of the present utility model.
[0022] Figure 2 This is a schematic diagram of the electrical structure of the utility model.
[0023] Figure 3 This is the principle diagram of the voltage divider detection circuit of the utility model.
[0024] Figure 4 for Figure 1 Enlarged view of point A in the middle. DETAILED DESCRIPTION
[0025] The utility model is further described in detail below:
[0026] The utility model provides an infrared-based cargo pallet detection system, comprising a support frame and pallet guide rails;
[0027] The support frame is fixedly arranged on the ground, and the support frame is a rectangular parallelepiped structure formed by four columns 5 and a crossbeam 2. The tray guide rails (10, 12) are two and are arranged in parallel. The distance between the tray guide rails is greater than the width of the tray 8, and the height of the guide rails (10, 12) is less than the height of the tray 8. The inlet ends of the two tray guide rails are respectively fixed with baffles 9 inclined to the tray guide rails.
[0028] The two baffles 9 are tilted in opposite directions to form an eight-shaped structure;
[0029] It also includes a detection unit for detecting the size of goods on the pallet, the detection unit including a height detection module, an infrared imager 1 and a control module;
[0030] The infrared imager 1 is fixedly mounted on the crossbeam 2 of the support frame, and the height detection module is mounted on the column of the support frame. The output ends of the infrared imager and the height detection module are connected to the input end of the control module. The control module is used to classify the cargo pallets into shelves according to the height and lateral dimensions of the cargo and display an early warning. The baffle facilitates pushing the cargo to the gap between the two guide rails. Through the above structure, the overall dimensions of the cargo and the pallet carrying the cargo are accurately detected before the cargo is stored, which is conducive to accurately finding the corresponding shelf later, effectively reducing the possibility of collision between the cargo and the shelf during the storage and retrieval process. Compared with the existing technology, the detection accuracy is higher, the efficiency is higher, and the operation is simple and easy to use, which can reduce production costs.
[0031] In the above, the import end of the goods refers to Figure 1 The left side shown in the figure, that is, the side provided with the baffle is the inlet end.
[0032] In this embodiment, the height detection module is a through-beam photoelectric switch, and the transmitter 4 and receiver 11 of the through-beam photoelectric switch are respectively arranged on the diagonal columns of the support frame; in order to improve the detection accuracy, corresponding height detection modules are also set on the columns on the other diagonal of the four columns. The output end of the receiver 11 is connected to the industrial control host, and the control end of the transmitter 4 is connected to the industrial control host. The industrial control host controls the operation of the transmitter, and the industrial control host determines the overall height range of the goods and pallets based on the signal output by the receiver.
[0033] The height detection modules are arranged in multiple and equidistant positions on the columns of the support frame. Of course, the distance between the lowest height detection module on the column and the ground is equal to the distance between two adjacent transmitters on the same column. In practice, the height of each height detection module above the ground is calibrated, such as Figure 1 As shown, Figure 1 Only three height detection modules are given, so there are three height ranges, such as 0-80cm, 80-120cm, and 120-160cm. When the lowest photoelectric switch is blocked, the receiver has no signal output, while the two upper ones are not blocked, indicating that the total height of the goods and the pallet is within the range of 80-120cm. Therefore, when storing goods, it is sufficient to find the shelf height space of 120cm. Of course, in practice, more height intervals can be set;
[0034] In this embodiment, the control module includes an industrial control host, a server, an alarm 3 and a display;
[0035] The input end of the industrial control host is connected to the output end of the height detection module and the infrared imager. The control output end of the industrial control host is respectively connected to the alarm and the display. The industrial control host is in communication with the server. The server is used to store the storage classification information of the goods. For example, when the industrial control host recognizes the current cargo name through the label code scanner, it can find out which storage area the current cargo is suitable for by searching the server. Because different storage areas or different storage warehouses in the warehouse have different storage environments, different goods should be stored in the corresponding environment. Otherwise, it will affect the goods. The industrial control host uses the existing algorithm to identify the lateral size of the goods on the pallet through the image information output by the infrared imager, which will not be elaborated here.
[0036] In this embodiment, the alarm 3 is an audible and visual alarm, and the alarm is arranged on a column of the supporting frame.
[0037] In this embodiment, the detection unit also includes a label code scanner 6, which is fixedly arranged at the entrance end of the guide rail, and the output end of the label code scanner is connected to the industrial control host. The label code scanner is used to scan the label code information attached to the side of the cargo pallet, and the label code information marks the basic information of the cargo, wherein the label code is a QR code or a barcode, which is used to record the information of the cargo, such as the name of the cargo, the storage area or warehouse number used, etc. The label code scanner is a prior art and will not be described here in detail.
[0038] In this embodiment, the inner wall of the baffle 9 is provided with a resistance pressure strain gauge, which is connected to a resistance voltage divider detection circuit to detect whether the cargo pallet collides with the baffle. The output end of the resistance voltage divider detection circuit is connected to the industrial control host. Figure 3 As shown in the figure, the resistor RT represents the resistance strain gauge, and R1 is the voltage divider resistor of the voltage divider detection circuit. When the resistance strain gauge is squeezed, its resistance changes, and the voltage divider value on RT changes. This change is used to identify whether the pallet and the baffle have collided. When a collision occurs, the industrial computer will sound an alarm through the sound and light alarm, thereby reminding the operator to prevent damage to the pallet or goods.
[0039] In this embodiment, a power control switch 13 is further included. The power control switch 13 is used to control the on / off of the power supply circuit of the detection unit. The power switch is fixedly arranged on the column of the support frame, wherein the power control switch adopts an existing button switch.
[0040] In this embodiment, the detection unit also includes a position detection module for detecting whether the cargo pallet is pushed into place. The position detection module is a diffuse reflection photoelectric switch 7. The output end of the diffuse reflection photoelectric switch is connected to the input end of the industrial control host. The diffuse reflection photoelectric switch emits laser light and reflects it through the detected object, and then receives the reflected signal for identification. When the pallet is just pushed between the guide rails, the diffuse reflection photoelectric switch has a signal output. At this time, the industrial control host alarms through the sound and light alarm, such as prompting "cargo is delivered". When the goods are delivered to the designated position, the pallet just escapes the detection of the diffuse reflection photoelectric switch. At this time, the diffuse reflection photoelectric switch has no signal output, and the prompt "cargo pushing is completed" is stopped, and further pushing is stopped, indicating that the pallet has reached the designated position. At this time, it is convenient for the infrared imager to prepare to identify the lateral size of the goods. Of course, in order to increase the detection accuracy, at the other end of the guide rail (that is, the end where the baffle is set is the inlet end, Figure 1 When the diffuse reflection photoelectric switch at the inlet end has no signal output, the other diffuse reflection photoelectric switch has a signal output, indicating that the tray has just reached the specified position.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. An infrared-based cargo pallet detection system, characterized by: Includes support frame and pallet rails; The support frame is fixedly installed on the ground. The support frame is a rectangular parallelepiped structure formed by four columns and a crossbeam. There are two tray guide rails that are arranged in parallel. The distance between the tray guide rails is greater than the width of the tray. The inlet ends of the two tray guide rails are respectively fixed with baffles that are inclined to the tray guide rails. The two baffles are tilted in opposite directions to form an eight-shaped structure; It also includes a detection unit for detecting the size of the goods on the pallet, the detection unit including a height detection module, an infrared imager and a control module; The infrared imager is fixedly mounted on the crossbeam of the support frame, and the height detection module is mounted on the column of the support frame. The output ends of the infrared imager and the height detection module are both connected to the input end of the control module. The control module is used to classify cargo pallets into shelves according to the height and lateral dimensions of the cargo and display an early warning.
2. The infrared-based cargo pallet detection system according to claim 1, characterized in that: The height detection module is a beam-type photoelectric switch, and the transmitter and receiver of the beam-type photoelectric switch are respectively arranged on the diagonal columns of the support frame; The height detection modules are multiple and are arranged on the columns of the support frame at equal intervals.
3. The infrared-based cargo pallet detection system according to claim 1, characterized in that: The control module includes an industrial control host, a server, an alarm and a display; The input end of the industrial control host is connected to the output ends of the height detection module and the infrared imager, the control output end of the industrial control host is connected to the alarm and the display respectively, and the industrial control host is in communication connection with the server.
4. The infrared-based cargo pallet detection system according to claim 3, characterized in that: The alarm is an audible and visual alarm, and the alarm is arranged on a column of the supporting frame.
5. The infrared-based cargo pallet detection system according to claim 3, characterized in that: The detection unit also includes a label code scanner, which is fixedly arranged at the entrance end of the guide rail. The output end of the label code scanner is connected to the industrial control host. The label code scanner is used to scan the label code information attached to the side of the cargo pallet, and the label code information marks the basic information of the cargo.
6. The infrared-based cargo pallet detection system according to claim 3, characterized in that: The inner side wall of the baffle is provided with a resistance pressure strain gauge, which is connected to a resistance voltage divider detection circuit for detecting whether the cargo pallet collides with the baffle. The output end of the resistance voltage divider detection circuit is connected to the industrial control host.
7. The infrared-based cargo pallet detection system according to claim 1, characterized in that: It also includes a power control switch, which is used to control the on and off of the power supply circuit of the detection unit. The power control switch is fixedly arranged on the column of the support frame.
8. The infrared-based cargo pallet detection system according to claim 1, characterized in that: The detection unit further includes a position detection module for detecting whether the cargo pallet is pushed into place. The position detection module is a diffuse reflection photoelectric switch, and the output end of the diffuse reflection photoelectric switch is connected to the input end of the industrial control host.