CN110907026B - Automatic detection method for weighing sensor - Google Patents
Automatic detection method for weighing sensor Download PDFInfo
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- CN110907026B CN110907026B CN201911231455.3A CN201911231455A CN110907026B CN 110907026 B CN110907026 B CN 110907026B CN 201911231455 A CN201911231455 A CN 201911231455A CN 110907026 B CN110907026 B CN 110907026B
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- 238000005303 weighing Methods 0.000 title claims abstract description 159
- 238000001514 detection method Methods 0.000 title claims abstract description 90
- 238000012545 processing Methods 0.000 claims abstract description 43
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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Abstract
An automatic detection method for a weighing sensor comprises the following specific steps: s1, selecting a plurality of weights with the same specification and weight by using a standard weighing device; s2, placing the weighing sensor to be detected on an automatic weighing sensor detection device for self loading and unloading to obtain multiple groups of test data; s3, processing the data obtained by weighing and comparing the data with the single weight of the weight to judge whether the weighing sensor is qualified; s4, sending qualified data information detected by the weighing sensor to the monitoring terminal through the communication module, and generating a detection record storage and storage module corresponding to the weighing sensor; and S5, attaching a note corresponding to the detection record of the qualified weighing sensor to the corresponding weighing sensor, and storing the qualified weighing sensor. The invention has high automation degree of the detection of the symmetrical retransmission sensor and high detection efficiency.
Description
Technical Field
The invention relates to the technical field of automatic detection of weighing sensors, in particular to an automatic detection method of a weighing sensor.
Background
The weighing sensor is a device which converts a mass signal into a measurable electric signal and outputs the measurable electric signal, and is used for measuring the mass of an object; the important part in the commercial electronic scale is a weighing sensor, and the quality of the mass of the weighing sensor directly influences the mass of the electronic scale; before the weighing sensor is sold, the measurement accuracy of the weighing sensor needs to be detected so as to ensure the quality of the sold weighing sensor; however, the measurement accuracy of the traditional detection weighing sensor is manually corrected one by using weight symmetrical weighing sensors; the manual symmetric weighing sensor has low detection efficiency and large manual detection error, and the qualified rate of detection of the weighing sensor cannot be ensured; therefore, the application provides an automatic detection method of the weighing sensor.
Disclosure of Invention
Objects of the invention
The invention provides an automatic detection method of a weighing sensor, aiming at solving the technical problems in the background art.
(II) technical scheme
The invention provides an automatic detection method of a weighing sensor, which comprises the following specific steps:
s1, selecting a plurality of weights with the same specification and weight by using a standard weighing device to obtain single weight information A of a single weight;
s2, placing the weighing sensor to be detected on an automatic weighing sensor detection device, and automatically loading and unloading a plurality of weights one by the automatic weighing sensor detection device to obtain a plurality of groups of data B;
s3, processing the multiple groups of data B by a processor of the automatic detection device of the weighing sensor to obtain a processed data group C, and comparing the weight value in the processed data group C with the single weight information A of the single weight;
when each data value in the processed data group C is the same as the data value of the single weight information A, judging that the detection of the weighing sensor is qualified;
when each data value in the processed data group C is different from at least one data value of the single weight information A, judging that the weighing sensor is unqualified, and abandoning the unqualified weighing sensor;
s4, sending qualified data information detected by the weighing sensor to a monitoring terminal through a communication module by a signal output end of the automatic detection device of the weighing sensor, storing the data in a storage module, and generating a detection record corresponding to the weighing sensor;
s5, attaching a note corresponding to the detection record of the qualified weighing sensor to the corresponding weighing sensor, and storing the qualified weighing sensor;
s6, repeating S2-S5 to detect the next group of weighing sensors;
the automatic detection device of the weighing sensor comprises an automatic detection device, a rack and a monitoring terminal; the automatic detection devices are arranged on the rack at equal intervals along the length direction of the rack, and each automatic detection device comprises a host, a plurality of groups of mechanical arms, a plurality of weights, a workbench and a lead;
the device comprises a workbench and a plurality of groups of manipulators for clamping, loading and unloading a plurality of weights, wherein the manipulators are distributed side by side, the upper end surface of the workbench is provided with a placing groove for placing a weighing sensor to be detected, and the lower end surface of the workbench is provided with a groove; the groove is provided with a first opening and a second opening on two adjacent side end faces of the workbench, and the bottom surface of the groove is provided with a through hole for a power transmission line connected with a sensor to be weighed to penetrate through; a plurality of weights are placed on the workbench;
the host is provided with a display screen and a key module, and a circuit board is arranged in the host; the circuit board is provided with a data receiving module, a converter, a data processing module, a central processing unit, a data comparison module and a communication module, and is connected with a power transmission line connected with a sensor to be weighed through a wire;
the data receiving module is in communication connection with the weighing sensor and is connected with the converter; the converter is connected with the data processing module; the data processing module is connected with the central processing unit; the central processing unit is connected with the monitoring terminal through the communication module, the central processing unit is respectively in communication connection with the data comparison module, the display screen and the key module, and the central processing unit is respectively in control connection with the plurality of groups of manipulators.
Preferably, the processing method for the plurality of sets of data B in S3 is; the maximum and minimum values in the plurality of sets of data B are removed.
Preferably, the plurality of sets of data B further include zero voltage information, zero drift duration information, zero drift zero point information, loading voltage information, creep duration information, creep voltage information, return-to-zero voltage information, K value information, zero drift value information, creep value information, return-to-zero value information, zero drift proportion information, and creep proportion information about the weighing sensor to be detected.
Preferably, each group of automatic detection devices further comprises an alarm; the signal input end of the alarm is connected with the signal output end of the central processing unit.
Preferably, the monitoring terminal is internally provided with a storage module, and a display is arranged on the monitoring terminal.
Preferably, the monitoring terminal is a computer terminal.
Preferably, the number of the manipulators in each group of automatic detection devices is two.
Preferably, the clamping device comprises a plurality of groups of fastening bolts and a plurality of groups of clamping blocks; wherein, a plurality of threaded holes are arranged on the side inner wall of the placing groove on the workbench;
the plurality of groups of fastening bolts are screwed into the plurality of threaded holes one by one respectively, and the plurality of groups of fastening bolts are rotatably connected with the plurality of clamping blocks one by one respectively; a space for clamping the weighing sensor is formed between the plurality of clamping blocks.
Preferably, an elastic pad is arranged at one end of the clamping block, which is far away from the fastening bolt.
The technical scheme of the invention has the following beneficial technical effects:
the automatic detection method of the weighing sensor provided by the invention is simple to operate and convenient to use, and the weighing sensor can be quickly detected by the automatic detection device of the weighing sensor; when the automatic detection device of the weighing sensor is used, the weighing sensor to be detected is placed in a placing groove of a workbench, and the weighing sensor is connected with a circuit board in a host machine through a lead; starting the automatic detection device of the weighing sensor, and controlling a plurality of groups of manipulators by a central processing unit to clamp and place a plurality of weights at the weighing end of the weighing sensor one by one; the weighing sensor detects a weight signal of the weight and sends the weight signal to the data receiving module; the weight signal is sequentially transmitted to a central processing unit after passing through a converter and a data processing module, the central processing unit transmits a plurality of groups of received data to a data comparison module, and the data comparison module compares the weight value measured by the weighing sensor with the weight value of the weight to judge whether the detection of the weighing sensor is qualified or not; when the detection result of the weighing sensor is qualified, the central processing unit sends qualified data information detected by the weighing sensor to the monitoring terminal, and manually attaches a note corresponding to the detection record of the qualified weighing sensor to the corresponding weighing sensor and stores the qualified weighing sensor; when the weighing sensor is unqualified in detection, the weighing sensor is taken down and discarded, and the next group of weighing sensors is installed for continuous detection; the data value that can audio-visually look over weighing sensor through the display screen on the host computer detects, in addition, multiunit automatic checkout device sets gradually in the frame, can lay the weighing sensor that waits to detect to multiunit automatic checkout device simultaneously through an operating personnel, improves the detection efficiency of weighing sensor greatly, in addition, stores qualified weighing sensor's detection data through storage module, and the weighing sensor carries out quality analysis and pursuit in the future of being convenient for.
Drawings
Fig. 1 is a flowchart of an automatic detection method of a load cell according to the present invention.
Fig. 2 is a schematic structural diagram of an automatic detection device of a load cell in an automatic detection method of a load cell according to the present invention.
Fig. 3 is a schematic view of a partially enlarged structure at a position a in the automatic detection method of the weighing sensor according to the present invention.
Fig. 4 is a schematic perspective view of a workbench in an automatic detection method for a load cell according to the present invention.
Fig. 5 is a schematic block diagram of an automatic detection method of a weighing sensor according to the present invention.
Reference numerals: 1. a frame; 2. a host; 3. a display screen; 4. an alarm; 5. a manipulator; 6. a weight; 7. a monitoring terminal; 8. a storage module; 9. a key module; 10. a work table; 11. a groove; 12. a first opening; 13. a wire; 14. a through hole; 15. a placement groove; 16. tightening the bolt; 17. a clamping block; 18. a weighing sensor; 19. a threaded hole; 20. a second opening; 21. a data receiving module; 22. a converter; 23. a data processing module; 24. a central processing unit; 25. a data comparison module; 26. and a communication module.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1 to 5, the automatic detection method for the weighing sensor provided by the invention comprises the following specific steps:
s1, selecting a plurality of weights 6 with the same specification and weight by using a standard weighing device to obtain single weight information A of the single weight 6;
s2, placing the weighing sensor 18 to be detected on an automatic weighing sensor detection device, and automatically loading and unloading the weights 6 one by the automatic weighing sensor detection device to obtain a plurality of groups of data B;
it should be noted that the automatic detection device of the weighing sensor automatically operates, and a plurality of groups of data B can be visually checked from the test instrument of the automatic detection device; the multiple groups of data B also comprise test data of the weighing sensor 18 to be detected, such as zero point voltage information, zero drift time length information, zero drift zero point information, loading voltage information, creep time length information, creep voltage information, return-to-zero voltage information, K value information, zero drift value information, creep value information, return-to-zero value information, zero drift proportion information, creep proportion information and the like, and the judgment is carried out by combining the quality of the test data of the weighing sensor 18 so as to improve the quality judgment accuracy of the weighing sensor 18;
s3, processing the multiple groups of data B by a processor of the automatic weighing sensor detection device to obtain a processed data group C, and comparing the weight value in the processed data group C with the single weight information A of the single weight 6;
when each data value in the processed data group C is the same as the data value of the single weight information A, judging that the detection of the weighing sensor 18 is qualified;
when each data value in the processed data group C is different from at least one data value of the single weight information A, judging that the weighing sensor 18 is unqualified, and abandoning the unqualified weighing sensor 18;
s4, sending qualified data information detected by the weighing sensor 18 to the monitoring terminal 7 through the signal output end of the automatic detection device of the weighing sensor through the communication module 26, storing the data in the storage module 8, and generating a detection record corresponding to the weighing sensor 18;
s5, attaching a note corresponding to the detection record of the qualified weighing sensor 18 to the corresponding weighing sensor 18, and storing the qualified weighing sensor 18;
s6, repeating S2-S5 to detect the next group of weighing sensors 18;
the automatic detection device of the weighing sensor comprises an automatic detection device, a frame 1 and a monitoring terminal 7; the automatic detection devices are arranged on the rack 1 at equal intervals along the length direction of the rack 1, and each automatic detection device comprises a host machine 2, a plurality of groups of manipulators 5, a plurality of weights 6, a workbench 10 and a lead 13;
the device comprises a workbench 10 and a plurality of groups of manipulators 5 for clamping and loading and unloading a plurality of weights 6, wherein the manipulators are distributed side by side, the upper end surface of the workbench 10 is provided with a placing groove 15 for placing a weighing sensor 18 to be detected, and the lower end surface of the workbench 10 is provided with a groove 11; a first opening 12 and a second opening 20 are distributed on two adjacent side end faces of the workbench 10 of the groove 11, and a through hole 14 for a power transmission line connected with a sensor 18 to be weighed to penetrate through is formed in the bottom face of the groove 11; a plurality of weights 6 are placed on the table 10; the weight 6 is placed at the weighing end of the weighing sensor 18 through the arranged manipulator, and it should be noted that when the weighing end of the weighing sensor 18 is suitable for loading the weight, the weighing sensor 18 is arranged on the weighing tray, the weight is placed on the weighing tray, and the weight value measured by the weighing sensor 18 is the total weight of the weight 6 and the weighing tray;
the host 2 is provided with a display screen 3 and a key module 9, and a circuit board is arranged in the host 2; the circuit board is provided with a data receiving module 21, a converter 22, a data processing module 23, a central processing unit 24, a data comparison module 25 and a communication module 26, and is connected with a power transmission line connected with the sensor 18 to be weighed through a lead 13; one end of each of the plurality of wires 13 is connected to the circuit board, and the other end of each of the plurality of wires 13 is electrically connected to the power transmission line of the weighing sensor 18 through a clip, so as to realize the quick connection between the weighing sensor 18 and the circuit board;
the signal input end of the data receiving module 21 is connected with the signal output end of the weighing sensor 18, and the signal output end of the data receiving module 21 is connected with the signal input end of the converter 22; the signal output end of the converter 22 is connected with the signal input end of the data processing module 23; the signal output end of the data processing module 23 is connected with the signal input end of the central processing unit 24; the central processing unit 24 is connected with the monitoring terminal 7 through a communication module 26, the central processing unit 24 is respectively in communication connection with a data comparison module 25, the display screen 3 and the key module 9, and the central processing unit 24 is respectively in control connection with a plurality of groups of manipulators 5.
In an alternative embodiment, the processing method for the plurality of sets of data B in S3 is; the maximum and minimum values in the plurality of sets of data B are removed.
In the invention, when in use, a weighing sensor 18 to be detected is placed in the placing groove 15 of the workbench 10, and the weighing sensor 18 is connected with a circuit board in the host machine 2 through the lead 13; starting the automatic detection device of the weighing sensor, and controlling a plurality of groups of manipulators 5 by the central processing unit 24 to clamp and place a plurality of weights 6 at the weighing end of the weighing sensor 18 one by one respectively; the weighing sensor 18 detects a weight signal of the weight 6 and sends the signal to the data receiving module 21; the weight signal is sent to a central processing unit 24 after passing through a converter 22 and a data processing module 23 in sequence, the central processing unit 24 sends a plurality of groups of received data to a data comparison module 25, and the data comparison module 25 compares the weight value measured by the weighing sensor 18 with the weight value of the weight 6 to judge whether the detection of the weighing sensor 18 is qualified; when the detection result of the weighing sensor 18 is qualified, the central processing unit 24 sends qualified data information detected by the weighing sensor 18 to the monitoring terminal 7, manually attaches a note corresponding to the detection record of the qualified weighing sensor 18 to the corresponding weighing sensor 18, and stores the qualified weighing sensor 18; when the weighing sensor 18 fails to detect, the weighing sensor 18 is taken down and discarded, and the next group of weighing sensors 18 is installed for continuous detection; the data value that weighing sensor 18 detected can audio-visually be looked over through display screen 3 on host computer 2, and in addition, multiunit automatic checkout device sets gradually in frame 1, can lay the weighing sensor 18 that waits to detect to multiunit automatic checkout device simultaneously through an operating personnel, improves the detection efficiency of weighing sensor 18 greatly.
In an alternative embodiment, each set of automatic detection means further comprises an alarm 4; the signal input end of the alarm 4 is connected with the signal output end of the central processing unit 24; when the detection result of the weighing sensor 18 is unqualified, the alarm 4 gives an alarm to remind an operator to check.
In an alternative embodiment, the monitoring terminal 7 is internally provided with the storage module 8, the monitoring terminal 7 is provided with a display, and the monitoring terminal 7 is a computer terminal.
In an alternative embodiment, the number of robots 5 in each set of automatic detection devices is two.
In an alternative embodiment, a plurality of sets of set bolts 16 and a plurality of sets of clamping blocks 17 are included; wherein, the side inner wall of the placing groove 15 is provided with a plurality of threaded holes 19 on the worktable 10;
the multiple groups of fastening bolts 16 are screwed into the multiple threaded holes 19 one by one respectively, and the multiple groups of fastening bolts 16 are connected with the multiple clamping blocks 17 one by one respectively in a rotating manner; a space for clamping the load cell 18 is formed between the plurality of clamp blocks 17, and the plurality of clamp blocks 17 press the load cell 18 toward the end face of the load cell 18; the weighing sensor 18 to be detected is clamped by the clamping blocks 17 so as to improve the stability of the weighing sensor 18.
In an alternative embodiment, the end of the clamping block 17 remote from the fastening bolt 16 is provided with an elastic pad, and the elastic pad provided on the clamping block 17 is used to avoid the clamping block 17 from being damaged by the weighing sensor 18.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. An automatic detection method for a weighing sensor is characterized by comprising the following specific steps:
s1, selecting a plurality of weights (6) with the same specification and weight by using a standard weighing device to obtain single weight information A of the single weight (6);
s2, placing a weighing sensor (18) to be detected on a weighing sensor automatic detection device, and automatically loading and unloading a plurality of weights (6) one by the weighing sensor automatic detection device to obtain a plurality of groups of data B;
s3, processing the multiple groups of data B by a processor of the automatic weighing sensor detection device to obtain a processed data group C, and comparing the weight value in the processed data group C with the single weight information A of the single weight (6);
when each data value in the processed data group C is the same as the data value of the single weight information A, judging that the detection of the weighing sensor (18) is qualified;
when each data value in the processed data group C is different from at least one data value of the single weight information A, judging that the weighing sensor (18) is unqualified, and abandoning the unqualified weighing sensor (18);
s4, sending qualified data information detected by the weighing sensor (18) to the monitoring terminal (7) through the signal output end of the automatic detection device of the weighing sensor by the communication module (26), storing the data in the storage module (8), and generating a detection record corresponding to the weighing sensor (18);
s5, attaching a note corresponding to the detection record of the qualified weighing sensor (18) to the corresponding weighing sensor (18), and storing the qualified weighing sensor (18);
s6, repeating S2-S5 to detect the next group of weighing sensors (18);
the automatic detection device of the weighing sensor comprises an automatic detection device, a rack (1) and a monitoring terminal (7); the automatic detection devices are arranged on the rack (1) at equal intervals along the length direction of the rack (1), and each automatic detection device comprises a host (2), a plurality of groups of manipulators (5), a plurality of weights (6), a workbench (10) and a lead (13);
the device comprises a workbench (10) and a plurality of groups of manipulators (5) for clamping, loading and unloading a plurality of weights (6), wherein the manipulators are distributed side by side, the upper end surface of the workbench (10) is provided with a placing groove (15) for placing a weighing sensor (18) to be detected, and the lower end surface of the workbench (10) is provided with a groove (11); a first opening (12) and a second opening (20) are distributed on two adjacent side end faces of the workbench (10) of the groove (11), and a through hole (14) for a power transmission line connected with a sensor to be weighed (18) to penetrate through is formed in the bottom face of the groove (11); a plurality of weights (6) are placed on the workbench (10);
the host (2) is provided with a display screen (3) and a key module (9), and a circuit board is arranged in the host (2); the circuit board is provided with a data receiving module (21), a converter (22), a data processing module (23), a central processing unit (24), a data comparison module (25) and a communication module (26), and is connected with a power transmission line connected with a sensor (18) to be weighed through a wire (13);
the data receiving module (21) is in communication connection with the weighing sensor (18), and the data receiving module (21) is connected with the converter (22); the converter (22) is connected with the data processing module (23); the data processing module (23) is connected with the central processing unit (24); the central processing unit (24) is connected with the monitoring terminal (7) through the communication module (26), the central processing unit (24) is respectively in communication connection with the data comparison module (25), the display screen (3) and the key module (9), and the central processing unit (24) is respectively in control connection with the plurality of groups of mechanical arms (5).
2. The automatic detecting method for the weighing sensor according to claim 1, wherein the plurality of groups of data B are processed in S3; the maximum and minimum values in the plurality of sets of data B are removed.
3. The method of claim 1, wherein the plurality of sets of data B further include zero voltage information, null shift duration information, null shift zero information, loading voltage information, creep duration information, creep voltage information, return-to-zero voltage information, K value information, null shift value information, creep value information, return-to-zero value information, null shift proportion information, and creep proportion information regarding the load cell (18) to be tested.
4. The automatic detection method of the weighing sensor according to claim 1, characterized in that each group of automatic detection devices further comprises an alarm (4); the signal input end of the alarm (4) is connected with the signal output end of the central processing unit (24).
5. The automatic detection method of the weighing sensor according to claim 1, characterized in that a storage module (8) is arranged in the monitoring terminal (7), and a display is arranged on the monitoring terminal (7).
6. The automatic detection method of the weighing sensor according to claim 1, characterized in that the monitoring terminal (7) is a computer terminal.
7. The automatic detection method of a weighing sensor according to claim 1, characterized in that the number of the manipulators (5) in each group of automatic detection devices is two groups.
8. The automatic detection method of the weighing sensor according to claim 4, characterized by comprising a plurality of groups of fastening bolts (16) and a plurality of groups of clamping blocks (17); wherein, the side inner wall of the placing groove (15) is provided with a plurality of threaded holes (19) on the workbench (10);
a plurality of groups of fastening bolts (16) are screwed into the threaded holes (19) one by one, and a plurality of groups of fastening bolts (16) are respectively connected with a plurality of clamping blocks (17) in a rotating way one by one; a space for clamping the load cell (18) is formed between the plurality of clamp blocks (17).
9. The automatic detection method of the weighing sensor according to claim 8, characterized in that an elastic pad is arranged at one end of the clamping block (17) far away from the fastening bolt (16).
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| CN113554800B (en) * | 2021-04-02 | 2023-06-02 | 浙江星星冷链集成股份有限公司 | Weighing device and unmanned vending system |
| CN116678489B (en) * | 2023-08-03 | 2023-09-29 | 深圳市力准传感技术有限公司 | Quality control method, system, equipment and medium for force sensor |
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