Weighing system and weighing method
By designing a weighing system including a horizontal raised section and a buffer section on the assembly line, the weighing structure arranged below the horizontal raised section is solved, and the problem of low weight weighing accuracy of items on the assembly line is achieved. Accurate item weight measurement.
Patent Information
- Application Number
- CN202211569916.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-12-08
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2042-12-08
AI Technical Summary
The prior art has low accuracy in weighing the weight of an article on the assembly line, especially if the assembly line does not maintain horizontal movement during the transmission process, it will lead to overweight or weight loss, which will affect the accuracy of the weighing results.
A weighing system is designed, including a conveying mechanism, a carrier and a weighing structure. The carrier consists of a horizontal raised section and a buffer section, and the weighing structure is arranged below the horizontal raised section. When the item to be weighed moves to the horizontal raised section, the external force of the conveying mechanism does not generate partial force in the direction of gravity, ensuring that the weighing structure can accurately weigh the real-time weight of the item.
Through this design, the weighing accuracy of the weight of the item on the assembly line is improved, ensuring that even if there is external force during the transmission process, the weighing results can accurately reflect the actual weight of the item.
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Figure CN115900913B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of object weighing, and in particular to a weighing system and a weighing method. Background Art
[0002] The assembly line is used to transport items to a designated location. For example, the assembly line needs to transport the fruit and vegetable carrying device for holding fruits and vegetables (the cup body of the fruit and vegetable carrying device is the item to be weighed) to the weighing structure (floor scale). The weighing structure weighs the total weight of the cup body (fruit cup) and the fruits and vegetables. The total weight minus the weight of the cup body is the weight of the fruits and vegetables. However, during the actual transportation process, the weight of the cup body may change due to damage or foreign objects falling on it. If the weight of the cup body cannot be updated in time, the weight of the fruits and vegetables calculated based on the weight of the cup body will deviate from the actual weight. The prior art is to directly weigh the weight of the cup body without fruits and vegetables on the assembly line through the weighing structure below it. Once the assembly line does not maintain horizontal movement during the accelerated movement, the fruit and vegetable carrying device will be overweight or weightless, causing the weight of the cup body (item to be weighed) weighed by the weighing structure to deviate from the actual weight.
[0003] In summary, the accuracy of weighing the weight of items on the existing weighing line is low.
[0004] Therefore, the prior art still needs to be improved and enhanced. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides a weighing system and a weighing method, which solve the problem of low accuracy of the weight of items on the weighing line in the prior art.
[0006] To achieve the above object, the present invention adopts the following technical solutions:
[0007] In a first aspect, the present invention provides a weighing system, which includes the following components:
[0008] A conveying mechanism, used for fixing the lower part of the object to be weighed to convey the object to be weighed;
[0009] A carrier, comprising a horizontal protrusion section and a buffer section, wherein the buffer section is used to assist the conveying mechanism in conveying the object to be weighed;
[0010] The weighing structure is arranged below the horizontal raised section.
[0011] In one implementation, an inclined transition section is provided between the buffer section and the horizontal protrusion section.
[0012] In a second aspect, the present invention provides a weighing method, comprising:
[0013] Monitor the real-time position of the object to be weighed on the carrier;
[0014] When it is detected that the real-time position of the object to be weighed is located at the horizontal raised section of the carrier, a weighing structure is controlled to weigh the real-time weight of the object to be weighed, and the weighing structure is located below the horizontal raised section.
[0015] In one implementation, when it is detected that the real-time position of the object to be weighed is located at the horizontal raised section of the carrier, controlling a weighing structure to weigh the real-time weight of the object to be weighed, the weighing structure being located below the horizontal raised section, comprises:
[0016] Controlling the weighing structure to weigh the object to be weighed multiple times to obtain a plurality of test weights of the object to be weighed;
[0017] If several of the test weights are the same, taking the test weight as the real-time weight;
[0018] Alternatively, if the test weights are different, adjusting the level of the horizontal raised section until the test weights are the same;
[0019] The weighing structure is controlled to weigh the real-time weight of the object to be weighed on the horizontal raised section after the horizontality is adjusted.
[0020] In one implementation, the method further includes:
[0021] Calculating the average weight of each object on the carrier corresponding to the object to be weighed;
[0022] Calculating the absolute value of the difference between the real-time weight of the object to be weighed and the average weight of each object to obtain a weight error value of the object to be weighed;
[0023] According to the weight error value of the object to be weighed, a test result for the object to be weighed is obtained.
[0024] In one implementation, the calculating the average weight of each object on the carrier corresponding to the object to be weighed includes:
[0025] Controlling the weighing structure to weigh the weights of the items on the production line and passing over the weighing structure one by one until the total number of items passing over the weighing structure reaches a set number, and obtaining the weight of each of the items in the set number;
[0026] The sum of the weights of the items is divided by the set number to obtain the average weight of the items.
[0027] In one implementation, the method further includes:
[0028] According to the inspection result of the object to be weighed, a weight grade in the inspection result of the object to be weighed is obtained, where the weight grade is used to represent a range value of the weight of the object to be weighed;
[0029] According to the weight grade of the object to be weighed, the object to be weighed is controlled to enter the channel corresponding to the weight grade from the assembly line.
[0030] In a third aspect, an embodiment of the present invention further provides a weighing device, wherein the device comprises the following components:
[0031] A position monitoring module is used to monitor the real-time position of the object to be weighed on the carrier;
[0032] The control module is used to control the weighing structure to weigh the real-time weight of the object to be weighed when it is detected that the real-time position of the object to be weighed is located at the horizontal raised section of the support member, and the weighing structure is located below the horizontal raised section.
[0033] In a fourth aspect, an embodiment of the present invention further provides a terminal device, wherein the terminal device includes a memory, a processor, and a weighing program stored in the memory and executable on the processor, and when the processor executes the weighing program, the steps of the above-mentioned weighing method are implemented.
[0034] In a fifth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a weighing program is stored. When the weighing program is executed by a processor, the steps of the weighing method described above are implemented.
[0035] Beneficial effect: The carrier of the present invention includes a horizontal raised section and a buffer section, and a weighing structure is fixed on the lower surface of the horizontal raised section. When the object to be weighed moves from the buffer section to the horizontal raised section, the weight of the object to be weighed will all act on the horizontal raised section of the carrier and no longer act on the conveying mechanism. Since the present invention fixes a weighing structure on the lower surface of the horizontal raised section, when the object to be weighed reaches the horizontal raised section of the carrier, the real-time weight of the object to be weighed can be weighed by the weighing structure. The reason why the present invention weighs the weight of the object to be weighed only when it is located in the horizontal raised section is based on the following reasons:
[0036] Since the object to be weighed of the present invention maintains horizontal contact with the carrier (because the raised section is horizontal, so it constitutes horizontal contact), even if the external force applied by the conveying structure to the object to be weighed causes the object to be weighed to move faster during the weighing process, the external force will not generate a component force in the direction of gravity (for example, the conveying structure is a very long chain, and the various positions of the chain are not all horizontal during actual use, and the chain is not at a uniform speed during the entire movement process. When moving at a non-uniform speed, if the object to be weighed is located in the buffer section of the carrier, then the external force will generate a component force in the direction of gravity of the object to be weighed), so the real-time weight of the object to be weighed weighed by the weighing structure is its actual weight, thereby improving the accuracy of the weighed object weight. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 It is the overall flow chart of the present invention;
[0038] Figure 2 is a structural diagram of an article inspection system in an embodiment of the present invention;
[0039] Figure 3 This is a flow chart of checking the weight of a fruit and vegetable carrying device in an embodiment of the present invention;
[0040] Figure 4 This is a block diagram of the internal structure principle of the terminal device provided in an embodiment of the present invention. DETAILED DESCRIPTION
[0041] The following is a clear and complete description of the technical solution of the present invention in combination with the embodiments and the accompanying drawings. Based on the embodiments 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.
[0042] It has been found through research that the assembly line is used to convey items to a designated location. For example, the assembly line needs to transport the fruit and vegetable carrying device 4 (the cup body 43 of the fruit and vegetable carrying device 4 is the item to be weighed) for holding fruits and vegetables to the weighing structure 3 (the scale), and the weighing structure 3 weighs the total weight of the cup body 43 (fruit cup) and the fruits and vegetables. The total weight minus the weight of the cup body 43 is the weight of the fruits and vegetables. However, during the actual transportation process, the weight of the cup body 43 will change due to damage or foreign objects falling on it. Once the weight of the cup body 43 cannot be updated in time, the weight of the fruits and vegetables calculated based on the weight of the cup body 43 will deviate from the actual weight. The prior art is to directly weigh the weight of the cup body 43 without fruits and vegetables on the assembly line through the weighing structure 3 below it. Once the assembly line does not maintain horizontal movement during the accelerated movement, the fruit and vegetable carrying device 4 will be overweight or weightless, thereby causing the weight of the cup body 43 (the item to be weighed) weighed by the weighing structure 3 to deviate from the actual weight.
[0043] In order to solve the above technical problems, the present invention provides a weighing system, which solves the problem of low accuracy of the weight of items on the weighing assembly line in the prior art. In specific implementation, first, the item to be weighed is conveyed to the horizontal raised section 23 of the carrier 2 (fixed) by the conveying mechanism 1. Although the bottom of the item to be weighed located at the horizontal raised section 23 is still in contact with the conveying mechanism 1, there is no interaction force between the item to be weighed and the conveying mechanism 1 at this time, that is, all the gravity of the item to be weighed is applied to the horizontal raised section 23 of the carrier 2. At this time, even if the conveying structure accelerates under the action of external force, the external force will not generate a component force in the gravity direction of the item to be weighed, so the weighing structure 3 fixed on the horizontal raised section 23 can weigh the true weight of the item to be weighed. The present invention can accurately weigh the weight of the item to be weighed, thereby realizing its classification according to its weight.
[0044] For example, take the transportation of fruits and vegetables on an assembly line (conveyor belt) as an example: first, the fruits and vegetables are placed in the fruit and vegetable carrying device 4 (items to be weighed), and then the conveying structure on the assembly line carries the fruit and vegetable carrying device 4 and the fruits and vegetables to the fruit and vegetable weighing device S1 to weigh the weight of the fruits and vegetables (the weight of the fruits and vegetables is equal to the total weight G1 of the fruit and vegetable carrying device 4 and the fruits and vegetables minus the weight G2 of the fruit and vegetable carrying device 4) to complete the weighing of the fruits and vegetables. After completing the weighing of fruits and vegetables, the fruit and vegetable carrying device 4 will carry the next fruit and vegetable to the fruit and vegetable weighing device S1 again to weigh the weight of the fruit and vegetable. If the weight G2 of the fruit and vegetable carrying device 4 changes due to damage during this transportation process, and the weighing device S1 still calculates the weight of the fruits and vegetables according to the original weight G2 of the fruit and vegetable carrying device 4, the weight of the fruits and vegetables will be inaccurate. In order to solve the above problem, this embodiment performs real-time inspection on the weight of the fruit and vegetable carrying device 4, and when its weight changes, its weight stored in the weighing device S1 is updated in time. In this embodiment, when checking the weight of the fruit and vegetable carrying device 4, the conveying structure is firstly used to carry the empty fruit and vegetable carrying device 4 to the weighing structure 3S2 along the surface of the carrying member 2, and then the weighing structure 3S2 is started to weigh the weight of the fruit and vegetable carrying device. After the real-time weight of the fruit and vegetable carrying device 4 is weighed, the test result of whether the weight of the fruit and vegetable carrying device 4 changes during use can be determined according to the real-time weight.
[0045] Exemplary Systems
[0046] The weighing system in this embodiment includes a conveying mechanism 1, a bearing member 2, and a weighing structure 3. The bearing member 2 includes a horizontal protruding section 23 and a buffer section 21. The height of the horizontal protruding section 23 is greater than the height of the buffer section 21. When the object to be weighed is located on the horizontal protruding section 23, the gravity of the object to be weighed completely acts on the horizontal protruding section 23, and the gravity of the object to be weighed no longer acts on the conveying mechanism 1 connected thereto. Therefore, the weighing structure 3 fixed on the lower surface of the horizontal protruding section 23 can accurately weigh the weight of the object to be weighed.
[0047] by Figure 2 Taking the fruit and vegetable carrying device 4 in FIG. 1 as an example, this embodiment is to weigh the weight of the fruit and vegetable carrying device 4:
[0048] like Figure 2 As shown, the fruit and vegetable carrying device 4 includes a cup body 43 (item to be weighed), a support rod 42 that is slidably connected to the cup body 43, and a cup seat 41 fixed to the bottom of the support rod 42. The cup seat 41 is placed on the conveying mechanism 1 (chain), and the carrying member 2 is provided with an opening groove along the moving direction of the conveying mechanism 1. The support rod 42 is located in the opening groove, and the cup body 43 fixed on the upper part of the support rod 42 is in contact with the carrying member 2. When the conveying mechanism 1 carries the fruit and vegetable carrying device 4 and moves to the horizontal raised section 23, the horizontal raised section 23 lifts the cup body 43 upward, so that the cup body 43 and the support rod 42 have no vertical contact, so that the gravity acts entirely on the upper surface of the weighing structure 3 located on the lower surface of the horizontal raised section 23, so the weight can be accurately weighed.
[0049] Exemplary Methods
[0050] The weighing method of this embodiment can be applied to a terminal device, which can be a production line with a computing function, such as a computer. Figure 1 As shown in , the weighing method specifically includes the following steps:
[0051] S100, monitoring the real-time position of the object to be weighed on the carrier 2.
[0052] The reason why the present embodiment monitors the real-time position of the object to be weighed (cup body 43) is to control the weight measured by the weighing structure 3 to be the weight of the object to be weighed, rather than the weight of other objects. The reasons are as follows:
[0053] The assembly line composed of the carrier 2 and the conveying mechanism 1 in this embodiment is not only used to check the weight of the items to be weighed, but also has the function of transporting other items while checking the weight. If the real-time position of the items to be weighed is not recorded, it is impossible to distinguish whether the weight measured by the weighing structure 3 is the weight of the items to be weighed.
[0054] S200, when it is detected that the real-time position of the object to be weighed is located at the horizontal raised section 23 of the carrier 2, the weighing structure 3 is controlled to weigh the real-time weight of the object to be weighed, the weighing structure 3 is in horizontal contact with the horizontal raised section 23, and the object to be weighed located at the horizontal raised section 23 is in horizontal contact with the horizontal raised section 23.
[0055] In one embodiment, step S200 includes the following steps S201 and S202:
[0056] S201, controlling the weighing structure 3 to weigh the object to be weighed multiple times to obtain a plurality of test weights of the object to be weighed.
[0057] S202: If several test weights are the same, use the test weight as the real-time weight.
[0058] In this embodiment, multiple weighing structures 3 are arranged at equal intervals, and multiple weighing structures 3 can realize multiple measurements of the same object to be weighed. If the weight of the same object to be weighed measured by each weighing structure 3 is the same, it means that the weighing structure 3, the support 2, and the object to be weighed are all in horizontal contact, and the same weight weighed is the actual weight of the object to be weighed.
[0059] In another embodiment, step S200 includes the following steps S203 and S204:
[0060] S203, if the test weights are different, adjusting the horizontal level of the horizontal protruding section 23 until the test weights are the same.
[0061] S204, controlling the weighing structure 3 to weigh the real-time weight of the object to be weighed on the horizontal raised section 23 after the horizontality is adjusted.
[0062] In this embodiment, a plurality of weighing structures 3 are also arranged at equal intervals, and the plurality of weighing structures 3 weigh the weight of the same object to be weighed in turn. If the multiple weights weighed are different, it means that the weighing structure 3, the support member 2 of the horizontal raised section 23, and the object to be weighed do not form horizontal contact, so the horizontal raised section 23 needs to be adjusted until the three form horizontal contact. The weight weighed after the horizontal contact is taken as the real weight of the object to be weighed. In this embodiment, while measuring the weight of the object to be weighed, the weighing structure 3, the support member 2, and the object to be weighed are monitored to see whether they form horizontal contact, so as to ensure the accuracy of the subsequent weighing of other objects to be weighed.
[0063] S300: Obtaining a test result for the object to be weighed according to the real-time weight of the object to be weighed.
[0064] If the weight of the object to be weighed changes due to damage, the object to be weighed is unqualified, otherwise it is qualified. Step S300 includes the following steps S301 to S304:
[0065] S301, controlling the weighing structure 3 to weigh the weights of the items on the carrier 2 and passing over the weighing structure 3 one by one, until the total number of items passing over the weighing structure 3 reaches a set number, and obtaining the weight of each of the items in the set number.
[0066] S302: Divide the sum of the weights of the items by the set number to obtain an average weight of the items.
[0067] In this embodiment, there are several objects to be weighed, and the weighing structure 3 will weigh the weight of all the objects to be weighed (cup bodies 43) (when weighing the weight of the cup body 43, there is no fruit placed in the cup body 43). The sum of the weights of all the objects to be weighed divided by the total number of the objects to be weighed is the average weight.
[0068] S303: Calculate the absolute value of the difference between the real-time weight of the object to be weighed and the average weight of each object to obtain a weight error value of the object to be weighed.
[0069] S304: Obtaining a test result for the object to be weighed according to the weight error value of the object to be weighed.
[0070] When the sum of the average weights is calculated, the weight of the items to be weighed can be monitored in real time. Specifically, the real-time weight of the items to be weighed is compared with the average weight. When the former obviously deviates from the latter, it indicates that the inspection result of the items to be weighed is unqualified. The average weight of this embodiment provides a basis for whether the real-time weight of each item to be weighed is qualified, so as to prepare to judge whether the items to be weighed are qualified.
[0071] In one embodiment, after completing steps S100, S200 and S300, the following steps S401 and S402 are further included:
[0072] S401, obtaining a weight grade in the inspection result of the object to be weighed according to the inspection result of the object to be weighed, where the weight grade is used to represent a range value of the weight of the object to be weighed.
[0073] S402: According to the weight grade of the object to be weighed, control the object to be weighed to enter the channel corresponding to the weight grade from the assembly line.
[0074] In this embodiment, objects to be weighed of different weights are diverted to different channels, so that the staff can subsequently perform corresponding processing on the objects to be weighed of each weight level.
[0075] Below Figure 3 Taking the fruit and vegetable carrying device 4 in the figure as an example, the detailed weighing process of the present invention is described:
[0076] (i) Using the manual reset function, initialize the average weight W of the fruit and vegetable carrying device 4 stored in the weighing structure 3, the total number n of the fruit and vegetable carrying device 4, so that W=0, n=0, and set the number s required to calculate the average value of the fruit and vegetable carrying device 4, and the error r.
[0077] (ii) The fruit and vegetable carrying device 4 passes through the bridge deck weighing device (weighing structure 3) at a constant speed, and the weight information a of a single fruit and vegetable carrying device 4 is obtained at this time.
[0078] (III) Determining whether the total number n of the fruit and vegetable carrying devices 4 has reached the number s required for calculating the average of the fruit and vegetable carrying devices 4 includes the following two situations:
[0079] In the first case, if the total number n of the carrying devices reaches s, the weight of each fruit and vegetable carrying device 4 in the total number s is accumulated, and the accumulated sum is divided by the total number to obtain the average weight of the fruit and vegetable carrying devices 4.
[0080] In the second case, if the total number n of fruit and vegetable carrying devices 4 does not reach the required number s of fruit and vegetable carrying devices 4, the calculated number n is increased by 1 until the total number n of fruit and vegetable carrying devices 4 reaches the required number s of fruit and vegetable carrying devices 4, and then the average weight W can be calculated using the formula (a1+a2+a3+…+an) / n.
[0081] (iv) After the average weight W is calculated, when the fruit and vegetable carrying device 4 that needs to be tested arrives at the weighing device, the tested fruit and vegetable carrying device 4 is compared with the average weight to determine whether it is qualified.
[0082] In summary, the object to be weighed of the present invention is located on the assembly line, the weighing structure 3 is located below the assembly line, and the object to be weighed and the weighing structure 3 are both in contact with the assembly line, that is, the weight of the object to be weighed can be transferred to the weighing structure 3 through the assembly line. When weighing the weight of the object to be weighed, the present invention first allows the object to be weighed to maintain horizontal contact with the assembly line (horizontal contact means that the contact line or the support member 2 formed when the object to be weighed is in contact with the assembly line is located in the horizontal direction), and then the weighing structure 3 weighs the weight of the object to be weighed. Since the object to be weighed of the present invention maintains horizontal contact with the assembly line, even if an external force causes the non-horizontal assembly line to accelerate during the weighing process, causing the object to be weighed to accelerate, the external force will not generate a component force in the direction of gravity, so the real-time weight of the object to be weighed weighed by the weighing structure 3 is its actual weight, thereby improving the accuracy of the weight of the weighed object.
[0083] Exemplary Devices
[0084] This embodiment also provides a weighing device, which includes the following components:
[0085] A position monitoring module, used to monitor the real-time position of the object to be weighed on the carrier 2;
[0086] The control module is used to control the weighing structure 3 to weigh the real-time weight of the object to be weighed when it is detected that the real-time position of the object to be weighed is located at the horizontal raised section 23 of the carrier 2 .
[0087] Based on the above embodiments, the present invention further provides a weighing device, whose principle block diagram can be shown as follows: Figure 4 As shown. The terminal device includes a processor, a memory, a network interface, a display screen, and a temperature sensor connected via a system bus. Among them, the processor of the terminal device is used to provide computing and control capabilities. The memory of the terminal device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the terminal device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a weighing method is implemented. The display screen of the terminal device can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the terminal device is pre-set inside the terminal device to detect the operating temperature of the internal device.
[0088] Those skilled in the art will understand that Figure 4The principle block diagram shown in the figure is only a block diagram of a partial structure related to the scheme of the present invention, and does not constitute a limitation on the terminal device to which the scheme of the present invention is applied. The specific terminal device may include more or less components than those shown in the figure, or combine certain components, or have a different arrangement of components.
[0089] In one embodiment, a terminal device is provided. The terminal device includes a memory, a processor, and a weighing program stored in the memory and executable on the processor. When the processor executes the weighing program, the following operation instructions are implemented:
[0090] Monitor the real-time position of the object to be weighed on the carrier 2;
[0091] When it is detected that the real-time position of the object to be weighed is located at the horizontal raised section 23 of the carrier 2 , the weighing structure 3 is controlled to weigh the real-time weight of the object to be weighed, and the weighing structure 3 is located below the horizontal raised section 23 .
[0092] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A weighing system, characterized in that: It includes the following components: A conveying mechanism, used for conveying the objects to be weighed; A carrier, comprising a horizontal protrusion section and a buffer section, wherein the buffer section is used to assist the conveying mechanism in conveying the object to be weighed; A weighing structure is arranged below the horizontal raised section; The height of the horizontal raised section is greater than the height of the buffer section, and an inclined transition section is provided between the buffer section and the horizontal raised section. The object to be weighed is connected to the support rod by sliding up and down, and the cup holder is fixed at the bottom of the support rod, and the cup holder is placed on the conveying mechanism; the bearing member is provided with an open groove along the moving direction of the conveying mechanism, and the support rod is located in the open groove, and the object to be weighed sliding up and down on the support rod contacts the bearing member; when the conveying mechanism carries the object to be weighed to the horizontal raised section, the horizontal raised section lifts up the object to be weighed, so that the object to be weighed has no vertical contact with the support rod, so that all gravity acts on the upper surface of the weighing structure located in the horizontal raised section.
2. A weighing method, using the weighing system as claimed in claim 1, characterized in that: include: Monitor the real-time position of the object to be weighed on the carrier; When it is detected that the real-time position of the object to be weighed is located at the horizontal raised section of the carrier, a weighing structure is controlled to weigh the real-time weight of the object to be weighed, and the weighing structure is located below the horizontal raised section.
3. The weighing method according to claim 2, characterized in that: When it is detected that the real-time position of the object to be weighed is located at the horizontal raised section of the carrier, the weighing structure is controlled to weigh the real-time weight of the object to be weighed, and the weighing structure is located below the horizontal raised section, comprising: Controlling the weighing structure to weigh the object to be weighed multiple times to obtain a plurality of test weights of the object to be weighed; If several of the test weights are the same, taking the test weight as the real-time weight; Alternatively, if the test weights are different, adjusting the level of the horizontal raised section until the test weights are the same; The weighing structure is controlled to weigh the real-time weight of the object to be weighed on the horizontal raised section after the horizontality is adjusted.
4. The weighing method according to claim 2, characterized in that: Also includes: Calculating the average weight of each object on the carrier corresponding to the object to be weighed; Calculating the absolute value of the difference between the real-time weight of the object to be weighed and the average weight of each object to obtain a weight error value of the object to be weighed; According to the weight error value of the object to be weighed, a test result for the object to be weighed is obtained.
5. The weighing method according to claim 4, characterized in that: The calculating the average weight of each object on the carrier corresponding to the object to be weighed includes: Controlling the weighing structure to weigh the weights of the items on the carrier and passing over the weighing structure one by one until the total number of items passing over the weighing structure reaches a set number, and obtaining the weight of each of the items in the set number; The sum of the weights of the items is divided by the set number to obtain the average weight of the items.
6. The weighing method according to claim 2, characterized in that: The method further comprises: According to the inspection result of the object to be weighed, a weight grade in the inspection result of the object to be weighed is obtained, where the weight grade is used to represent a range value of the weight of the object to be weighed; According to the weight grade of the object to be weighed, the object to be weighed is controlled to enter the channel corresponding to the weight grade from the production line.
7. A weighing device, comprising the weighing system according to claim 1, characterized in that: include: A position monitoring module is used to monitor the real-time position of the object to be weighed on the carrier; The control module is used to control the weighing structure to weigh the real-time weight of the object to be weighed when it is detected that the real-time position of the object to be weighed is located at the horizontal raised section of the support member, and the weighing structure is located below the horizontal raised section.
8. A terminal device, characterized in that: The terminal device includes a memory, a processor, and a weighing program stored in the memory and executable on the processor. When the processor executes the weighing program, the steps of the weighing method according to any one of claims 2 to 6 are implemented.
9. A computer-readable storage medium, characterized in that: A weighing program is stored on the computer-readable storage medium, and when the weighing program is executed by the processor, the steps of the weighing method according to any one of claims 2 to 6 are implemented.
Citation Information
Patent Citations
Intelligent weighing system, regional weighing method and shopping trolley
CN108844604A
Weighing method capable of reducing error effectively
CN109141589A