Universal type operation mistake and omission prevention method and device

Abstract

The invention provides a universal operation mistake and omission prevention method and device which are applied to a product operation line, the product operation line comprises a plurality of operation devices, and each operation device is provided with a switching value sensor. The method comprises the following steps: pre-executing corresponding operation equipment based on a standard execution sequence in an operation presetting stage; obtaining a standard state set corresponding to the standard execution sequence according to whether the operation equipment operates or not to obtain a standard signal value of a switching value sensor corresponding to each operation equipment; in the operation detection stage, operation signal values of switching value sensors corresponding to all operation devices are obtained, and an operation state set is obtained; and comparing the operation state set with the standard state set, and judging whether the current operation execution sequence is wrong or not. Whether the corresponding operation equipment operates or not can be judged only according to the on-off state of the switching value sensor, the operation state of the operation equipment can be obtained without detecting other parameters, and the production cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial automation control, and further to a universal operation error and omission prevention method and device. Background Art

[0002] With the continuous development of industrial automation, the requirements for accuracy and efficiency in the production process are getting higher and higher. However, in the actual production process, due to various reasons such as human operating errors, equipment failures, material confusion, etc., operational errors and omissions often occur, which not only affects product quality, but may also cause production line stagnation and increase production costs.

[0003] To ensure high compatibility with existing equipment and processes, most current error-proofing devices are designed and manufactured for specific production environments and processes. These devices can usually provide early warning or automatic correction before errors occur, thereby reducing the risk of human error.

[0004] However, customized error and leakage prevention devices need to be modified according to specific needs, have a long development cycle, high production costs, and are not universal. Summary of the invention

[0005] The purpose of the present invention is to provide a universal method and device for preventing errors and omissions in operations. It is only necessary to determine whether the corresponding operating equipment is running according to the switch state of the switch sensor, and the operating state of the operating equipment can be obtained without detecting other parameters. The entire error and omission prevention process is simple and clear, saving multiple costs such as raw material costs and processing fees, and reducing production costs.

[0006] The technical solution provided by the present invention is as follows:

[0007] The present invention provides a universal operation error and omission prevention method, which is applied to a product operation line, wherein the product operation line includes a plurality of operation equipment, each of which is equipped with a switch quantity sensor;

[0008] The method comprises:

[0009] In the job presetting stage, the corresponding respective job devices are pre-executed based on the standard execution sequence;

[0010] According to whether the operating equipment is running, the standard signal value of the switch sensor corresponding to each operating equipment is obtained, and a standard state set corresponding to the standard execution order is obtained; wherein the standard signal value includes: a first signal value and a second signal value, the first signal value indicates that the operating equipment corresponding to the switch sensor is in a running state, and the second signal value indicates that the operating equipment corresponding to the switch sensor is in a closed state;

[0011] In the operation detection stage, the operation signal value of the switch sensor corresponding to each operation device is obtained to obtain an operation state set;

[0012] The job status set is compared with the standard status set to determine whether the current job execution sequence is wrong.

[0013] In some embodiments, the standard status set includes a plurality of standard status information, wherein each of the standard status information corresponds to a set of standard signal values ​​of the switch quantity sensor corresponding to each of the operating devices after executing a standard step of the standard execution sequence.

[0014] In some implementations, the number of the standard status information is the same as the number of the standard steps.

[0015] In some embodiments, it further comprises:

[0016] When there are multiple standard execution sequences, a process number is set for each standard execution sequence, and each standard execution sequence corresponds to a standard state set;

[0017] In the job detection phase, the standard execution sequence corresponding to the current job is determined, the process number corresponding to the current job is determined according to the standard execution sequence corresponding to the current job, and the standard state set corresponding to the current job is called based on the process number corresponding to the current job;

[0018] The job status set corresponding to the current job is compared with the standard status set corresponding to the current job to determine whether the execution sequence of the current job is wrong.

[0019] In some implementations, comparing the job status set with the standard status set to determine whether the current job execution sequence is wrong includes:

[0020] Execute each of the operation devices based on the current operation execution order, obtain the operation signal value of the switch quantity sensor corresponding to each of the operation devices according to whether each of the operation devices is running, and obtain the operation state set representing the current operation execution order;

[0021] The job status information corresponding to each job step in the job status set is compared with the corresponding standard status information in the standard status set in sequence to determine whether the current job execution sequence is wrong.

[0022] In some implementations, comparing the job status set with the standard status set to determine whether the current job execution sequence is wrong includes:

[0023] Based on the current job execution sequence, after the operation equipment executes the current job step of the current job execution sequence, the current state information corresponding to the current job step is obtained, wherein the current state information is the current signal value of the switch sensor corresponding to each of the operation equipment after the current job step is completed;

[0024] The current state information is compared with the standard state information corresponding to the current operation step in the standard state set to determine whether the current operation step is wrong, until the operation detection is completed.

[0025] In some embodiments, the standard signal value is represented by binary, wherein the first signal value is represented by 1 and the second signal value is represented by 0.

[0026] The present invention also provides a universal operation error and leakage prevention device, which is applied to a product operation line, wherein the product operation line includes a plurality of operation equipments, and the error and leakage prevention device includes:

[0027] A plurality of switch sensors, wherein the switch sensors are installed on the operating equipment;

[0028] A controller, the controller being configured to:

[0029] In the operation preset stage, the corresponding operating equipment is pre-executed based on the standard execution sequence, and the standard signal value of the switch sensor corresponding to each operating equipment is obtained according to whether each operating equipment is running, so as to obtain a standard state set corresponding to the standard execution sequence; wherein the standard signal value includes: a first signal value and a second signal value, the first signal value indicates that the operating equipment corresponding to the switch sensor is in the running state, and the second signal value indicates that the operating equipment corresponding to the switch sensor is in the closed state;

[0030] In the operation detection stage, the operation signal value of the switch sensor corresponding to each operation device is obtained to obtain an operation state set; the operation state set is compared with the standard state set to determine whether the current operation execution sequence is wrong;

[0031] A memory is used to store the standard state set and the operation state set.

[0032] In some embodiments, it further includes: an alarm device, which is electrically connected to the controller and is used to issue an alarm message when the controller determines that the current job execution sequence is wrong.

[0033] In some embodiments, the switch quantity sensor includes: one or more of a photoelectric sensor and a proximity switch.

[0034] Compared with the prior art, the universal operation error prevention method and device provided by the present invention has the following beneficial effects:

[0035] Whether the corresponding operating equipment is running can be determined only based on the switch state of the switch sensor. The operating status of the operating equipment can be obtained without detecting other parameters. The entire error prevention process is simple and clear, saving raw material costs, processing fees and other expenses, and reducing production costs.

[0036] At the same time, the operating equipment is executed according to the standard execution sequence, and the standard signal values ​​of the switch sensors are recorded in sequence to obtain the standard state set. The standard state set is used as the execution standard, and the standard execution sequence can be set without programming. The user can also set it by himself, realizing the effect of the operator being an engineer. It reduces the programming technology threshold of the operator, reduces the communication and exchange time between the user and the equipment manufacturer, shortens the development cycle, and improves the operation efficiency.

[0037] By setting multiple standard execution sequences and setting corresponding process numbers for them, the standard execution sequence can be flexibly switched in a working environment where the operation process changes frequently, which can better adapt to the rapid switching of various production requirements and facilitate detection in the operation detection stage.

[0038] When the operation sequence or operation equipment changes, the installation position and monitoring content of the switch sensor can be easily changed. The operation is simple and convenient for practitioners to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0040] Figure 1 It is a flow chart of a universal operation error and omission prevention method of the present invention;

[0041] Figure 2 It is a flow chart of an embodiment of a universal operation error and omission prevention method of the present invention;

[0042] Figure 3 It is a structural diagram of a universal operation error and leakage prevention device of the present invention. DETAILED DESCRIPTION

[0043] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0044] It should be understood that when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections.

[0045] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0048] In the production and application of industrial automation, the requirements for the accuracy and efficiency of operating products are getting higher and higher. However, in the actual production process, due to various reasons such as human operating errors, equipment failures, material confusion, etc., operation errors and omissions often occur, which not only affects product quality, but may also cause production lines to stagnate, thereby increasing production costs. Due to the need for strict control and prevention of errors and omissions in the production process, the application of operation error and omission prevention devices is very important in the production and application of industrial automation.

[0049] The main logic of the operation error prevention device is:

[0050] 1. Detection: Real-time monitoring of key parameters in the production process and sending key parameter information to the controller.

[0051] 2. Logical judgment and decision-making: After receiving the key parameters, the controller will judge and make decisions based on the key parameters and preset logical rules. When an abnormality or error is detected, an alarm message will be issued.

[0052] 3. Information feedback: Provide feedback information to operators through sound and light alarms, etc.

[0053] 4. Execution: Based on the decision results, the controller controls the actuators (such as robotic arms, pneumatic components, etc.) to take corresponding actions to correct errors or stop production operations.

[0054] Current error and leakage prevention devices are generally designed and manufactured for specific production environments and processes to ensure a high degree of compatibility with existing equipment and processes. These devices can usually provide early warnings or automatic corrections before errors occur through precise sensors and preset logical judgments, thereby reducing the risk of human error. This high degree of adaptability enables the device to accurately solve error and leakage problems in the production process, improving production efficiency and product quality. However, the shortcomings of current error and leakage prevention devices are also very obvious.

[0055] 1. High cost: Since customized devices need to be designed and manufactured according to the specific needs of customers, this involves customized design costs, raw material costs, processing costs, and possible patent fees, etc. These costs are usually higher than the production costs of standardized products.

[0056] 2. Long development cycle: In-depth communication and exchange is required between equipment manufacturers and users to ensure accurate understanding of customer needs. The development process is relatively complex and requires multiple stages such as demand analysis, design, manufacturing, and debugging. Therefore, its development cycle is usually long, which may affect the company's production plan and progress.

[0057] 3. Poor flexibility: Although the customized device can meet the current production needs in terms of function and design, it cannot cope well with the rapid switching of various production environments and requirements, and the frequent changes of monitoring points and processes. Usually, different devices need to be customized to meet different production requirements, which also increases the cost pressure of the enterprise.

[0058] 4. High technical threshold and strong dependence: The design and manufacture of customized devices require a professional technical team and rich experience support. If the company's own technical strength is insufficient or lacks relevant experience, it may face problems such as high technical threshold and difficulty in development, including its maintenance and maintenance work is relatively difficult.

[0059] In order to solve the above technical problems, the present invention provides a universal method and device for preventing errors and omissions in operations. It is only necessary to judge whether the corresponding operating equipment is running according to the switching state of the switch sensor, and the operating state of the operating equipment can be obtained without detecting other parameters. The entire error and omission prevention process is simple and clear, saving multiple expenses such as raw material costs and processing fees, and reducing production costs.

[0060] Below, the present solution will be described in detail with reference to the accompanying drawings.

[0061] In one embodiment, the present invention provides a universal method for preventing errors and omissions in operations, which is applied to a product operation line. The product operation line includes a plurality of operation equipment, and each operation equipment is equipped with a switch sensor.

[0062] In a specific embodiment, the product operation line of the present application is based on RS485 (EIA-485) or CAN (Controller Area Network).

[0063] In a specific implementation, the switch quantity sensor includes: one or more of a photoelectric sensor and a proximity switch.

[0064] like Figure 1 As shown in the figure, the general operation error prevention methods include:

[0065] S100, in the job presetting stage, pre-execute corresponding various job devices based on the standard execution sequence;

[0066] S200, obtaining the standard signal value of the switch sensor corresponding to each operating device according to whether the operating device is running, and obtaining a standard state set corresponding to the standard execution order; wherein the standard signal value includes: a first signal value and a second signal value, the first signal value indicates that the operating device corresponding to the switch sensor is in the running state, and the second signal value indicates that the operating device corresponding to the switch sensor is in the closed state;

[0067] S300, in the operation detection phase, obtaining the operation signal value of the switch sensor corresponding to each operation device to obtain an operation state set;

[0068] S400, comparing the job status set with the standard status set to determine whether the current job execution sequence is wrong.

[0069] Specifically, before performing operation detection on each operation device, each operation device is pre-executed based on the standard execution sequence, and the standard signal value of the switch sensor corresponding to each operation device is obtained according to whether the operation device is running. Specifically, the standard signal values ​​of all switch sensors in the initial state and the standard signal values ​​of all switch sensors after each operation step in the standard execution sequence after the operation starts are recorded to obtain a standard state set corresponding to the standard execution sequence.

[0070] When the operating equipment is in an operating state, the switch sensor corresponding to the operating equipment is in an open state, and the controller obtains a first signal value; when the operating equipment is in a closed state, the switch sensor corresponding to the operating equipment is in a closed state, and the controller obtains a second signal value.

[0071] During the operation of each operating device, the operating signal value of the switch sensor corresponding to each operating device is obtained according to whether the operating device is running. Specifically, the operating signal values ​​of all switch sensors in the initial state and the operating signal values ​​of all switch sensors after each operating step after the operation starts are recorded to obtain the operating state set. The operating state set is compared with the standard state set. If the operating state set and the standard state set are completely consistent, it is judged that there is no error in the current operation execution sequence; if there is an inconsistency between the operating state set and the standard state set, it is judged that the current operation execution sequence is wrong. By comparing the operating state set and the standard state set, it is possible to detect whether the execution sequence of the operation is correct.

[0072] This solution only needs to judge whether the corresponding operating equipment is running according to the switch state of the switch sensor, and the operating status of the operating equipment can be obtained without detecting other parameters. The entire error prevention process is simple and clear, saving multiple costs such as raw material costs and processing fees, and reducing production costs.

[0073] At the same time, the operating equipment is executed according to the standard execution sequence, and the standard signal values ​​of the switch sensors are recorded in sequence to obtain the standard state set. The standard state set is used as the execution standard, and the standard execution sequence can be set without programming. The user can also set it by himself, realizing the effect of the operator being an engineer. It reduces the programming technology threshold of the operator, reduces the communication and exchange time between the user and the equipment manufacturer, shortens the development cycle, and improves the operation efficiency.

[0074] In one embodiment, based on the above embodiment, when there are too many operation devices to be operated, several key point devices can be selected as detection devices. By setting up the detection devices, the data of the switch quantity sensor is reduced, and the operation efficiency is further improved.

[0075] When the operation sequence or operation equipment changes, the installation position and monitoring content of the switch sensor can be easily changed. The operation is simple and convenient for practitioners to operate.

[0076] In one embodiment, based on the foregoing embodiment, when there are multiple standard execution sequences, in the job preset stage, each job equipment is pre-executed in turn based on the standard execution sequence, and the standard state set corresponding to each standard execution sequence is obtained, and a process number is set for it, so as to achieve the simultaneous setting of multiple standard execution sequences and the acquisition of their corresponding standard state sets.

[0077] In a specific implementation, during the job detection phase, the standard execution sequence corresponding to the current job is determined, the corresponding process number is selected, and the standard state set corresponding to the current job is called according to the process number. During the job detection phase, the job state set corresponding to the current job is compared with the standard state set corresponding to the current job to determine whether the current job execution sequence is wrong.

[0078] During implementation, when the execution sequence corresponding to the current job changes, the process number of the standard execution sequence corresponding to the current job is reselected, and the standard state set corresponding to the current job is called according to the process number.

[0079] In a specific implementation, during the job detection phase, the required multiple standard execution sequences are determined, the corresponding process numbers are selected in turn, the standard state set corresponding to the current job is called according to the process number, and the multiple standard state sets are sorted according to the order of the selected process numbers. During the job detection phase, the job state set corresponding to the current job is compared with the sorted multiple standard state sets to determine whether the current job execution sequence is wrong.

[0080] In a specific implementation, the process number is a number including numbers and letters, such as: 01A1, 02A1, 03B1, etc.

[0081] By setting multiple standard execution sequences and setting corresponding process numbers for them, the standard execution sequence can be flexibly switched in a working environment where the operation process changes frequently, which can better adapt to the rapid switching of various production requirements and facilitate detection in the operation detection stage.

[0082] In one embodiment, based on the foregoing embodiment, the standard state set includes a number of standard state information, wherein each standard state information corresponds to a set of standard signal values ​​of the switch sensors corresponding to each operating equipment after executing a standard step of a standard execution sequence.

[0083] In one embodiment, based on the above embodiment, the number of standard status information is the same as the number of standard steps, that is, each standard step corresponds to a piece of standard status information.

[0084] In one embodiment, based on the above embodiment, the standard signal value is represented by binary, wherein the first signal value is represented by 1 and the second signal value is represented by 0.

[0085] In a specific implementation, in the operation preset stage, it is assumed that there are 10 switch sensors, and the 10 switch sensors are numbered with numbers 1-10, namely: sensor No. 1, sensor No. 2, ... sensor No. 10. Before the operation equipment starts to run, the initial state of all switch sensors is OFF, and the state of all switch sensors is recorded as "0". At this time, the set of standard signal values ​​of the switch sensors corresponding to each operation equipment is recorded in sequence as "0000000000". When the switch value of sensor No. 1 changes from OFF state to ON state, that is, the standard signal value of sensor No. 1 changes from "0" to "1". At this time, the set of standard signal values ​​of the switch sensors corresponding to each operation equipment is recorded in sequence as "1000000000", and so on, as shown below:

[0086] STEP0:00000000000

[0087] STEP1:10000000000

[0088] STEP2:01000000000

[0089] STEP3:00100000000

[0090] …

[0091] After executing all the steps, the change state of the switch sensor is recorded, and a set of standard signal values ​​of the switch sensor corresponding to each operating equipment after each standard step is obtained, which is the standard state set, completing the setting of the standard execution sequence.

[0092] The switch state of the switch sensor can be used to obtain whether the operating status of the corresponding operating equipment is normal, without the need to detect other parameters. The error-proof detection process is simple, saving multiple costs such as raw material costs and processing fees, and reducing production costs.

[0093] In one embodiment, based on the above embodiment, the job status set and the standard status set are compared to determine whether the current job execution sequence is wrong, including:

[0094] Based on the current job execution sequence, after the job equipment executes the current job step of the current job execution sequence, the current state information corresponding to the current job step is obtained, wherein the current state information is the current signal value of the switch sensor corresponding to each job equipment after the current job step is completed;

[0095] Compare the current status information with the standard status information corresponding to the current job step in the standard status set to determine whether the current job step is wrong until the job detection is completed.

[0096] In a specific implementation, Figure 2 As shown, each operation equipment is pre-executed based on the standard execution sequence, and the standard signal values ​​of all switch sensors in the initial state and the standard signal values ​​of all switch sensors after each operation step in the standard execution sequence after the operation starts are recorded, and the step number is set for the standard signal value according to the execution sequence to obtain a standard state set. At the same time, the process number is set for the standard state set.

[0097] During the implementation, in the operation detection stage, determine the standard execution sequence corresponding to the current operation, select the corresponding process number, and call the standard state set corresponding to the current operation according to the process number. During the operation of the operation equipment, after each operation step is executed, record the operation signal value of the current operation step, compare the operation signal value with the standard signal value corresponding to the current operation step in the standard state set, and determine whether the current operation step is wrong. If the current operation step is executed incorrectly, an alarm is issued and it is re-executed; if the current operation step is executed correctly, continue to execute the next operation step.

[0098] During implementation, each time the current job step is executed, the current state information is compared with the standard state information corresponding to the current job step in the standard state set. When the current job execution sequence is completed and all are consistent with the standard signal value, the current job is determined to be completed.

[0099] In one embodiment, based on the above embodiment, the job status set and the standard status set are compared to determine whether the current job execution sequence is wrong, including:

[0100] Execute each operation device based on the current operation execution sequence, obtain the operation signal value of the switch sensor corresponding to each operation device according to whether each operation device is running, and obtain the operation state set representing the current operation execution sequence;

[0101] The job status information corresponding to each job step in the job status set is compared with the corresponding standard status information in the standard status set in turn to determine whether the current job execution sequence is wrong.

[0102] In a specific implementation method, based on the aforementioned embodiment, after obtaining the standard state set in the job preset stage, each job equipment is executed based on the current job execution sequence, and the job signal values ​​of all switch sensors are recorded after each step of the current job execution sequence is executed after the start of the job to obtain a job state set corresponding to the current job execution sequence.

[0103] In implementation, after the current job is completed, the job status information corresponding to each job step in the job status set is compared with the corresponding standard status information in the standard status set to determine whether the current job execution sequence of the job equipment is correct. When the current job execution sequence is completed and all are consistent with the standard signal value, the current job is determined to be completed.

[0104] During the job detection phase, a comparison can be performed each time a job step is executed, or a comparison can be performed uniformly after the current job sequence is completed. The specific comparison can be limited according to the actual application scenario.

[0105] According to another aspect of the present invention, the present invention also provides a universal operation error prevention device, which is applied to a product operation line, wherein the product operation line includes a plurality of operation equipment, such as Figure 3 As shown, the error and leakage prevention device includes: a plurality of switch sensors, a controller and a memory.

[0106] Specifically, the switch quantity sensor is installed on the operating equipment.

[0107] Specifically, the controller is configured as follows: in a job preset stage, each corresponding operating equipment is pre-executed based on a standard execution sequence, and the standard signal value of the switch sensor corresponding to each operating equipment is obtained according to whether each operating equipment is running, so as to obtain a standard state set corresponding to the standard execution sequence; wherein the standard signal value includes: a first signal value and a second signal value, the first signal value indicates that the operating equipment corresponding to the switch sensor is in an operating state, and the second signal value indicates that the operating equipment corresponding to the switch sensor is in a closed state; in a job detection stage, the job signal value of the switch sensor corresponding to each operating equipment is obtained to obtain a job state set; the job state set is compared with the standard state set to determine whether the current job execution sequence is wrong.

[0108] Specifically, the memory is used to store a standard state set and a job state set.

[0109] In one embodiment, based on the above-mentioned embodiment, the switch quantity sensor includes: one or more of a photoelectric sensor and a proximity switch.

[0110] In one embodiment, based on the foregoing embodiment, the job error and omission prevention device further includes: an alarm device electrically connected to the controller, the alarm device being used to issue an alarm message when the controller determines that the current job execution sequence is wrong.

[0111] In a specific embodiment, before performing operation detection on each operation device, each operation device is pre-executed based on the standard execution sequence. The standard signal value of the switch sensor corresponding to each operation device is obtained according to whether the operation device is running, and the standard signal value is transmitted to the controller through RS485 or CAN bus, and is also transmitted to the memory for storage. Specifically, the memory stores the standard signal values ​​of all switch sensors in the initial state and the standard signal values ​​of all switch sensors after each operation step in the standard execution sequence is executed after the operation starts, and is stored as a standard state set corresponding to the standard execution sequence.

[0112] In a specific implementation, when the operating equipment is in an operating state, the switch sensor corresponding to the operating equipment is in an on state, and the controller obtains a first signal value; when the operating equipment is in a off state, the switch sensor corresponding to the operating equipment is in a off state, and the controller obtains a second signal value.

[0113] In implementation, during the operation of the operation, during the operation of each operation device, the operation signal value of the switch sensor corresponding to each operation device is obtained according to whether the operation device is running. The standard signal value is transmitted to the controller through RS485 or CAN bus, and is also transmitted to the memory for storage. Specifically, the memory stores the operation signal values ​​of all switch sensors in the initial state and the operation signal values ​​of all switch sensors after each operation step is executed after the operation starts, and is stored as an operation state set corresponding to the current execution order.

[0114] During implementation, the controller retrieves the standard state set from the memory, compares it with the job state set, and determines whether the current execution sequence is wrong.

[0115] During implementation, if there is a discrepancy between the job status set and the standard status set, it is determined that the current job execution sequence is wrong, and the controller issues an alarm instruction, and the control alarm device issues an alarm signal to remind the operator to correct the error in time. If the job status set and the standard status set are completely consistent, the controller determines that the current job execution sequence is not wrong, and the controller will proceed to determine the next job step until the current job is completed.

[0116] During implementation, the execution results of each job step are recorded and sent to the reserved output terminal.

[0117] This solution detects whether the execution order of jobs is correct by comparing the job status set with the standard status set.

[0118] By sending the execution result to the reserved output terminal, the error and leakage prevention device of the present application has a wider application range and stronger plasticity, can adapt to a variety of actuators, and is convenient for staff to connect to different actuators by themselves.

[0119] This solution only needs to judge whether the corresponding operating equipment is running according to the switch state of the switch sensor, and the operating status of the operating equipment can be obtained without detecting other parameters. The entire error prevention process is simple and clear, saving multiple costs such as raw material costs and processing fees, and reducing production costs.

[0120] This solution uses the standard state set obtained by the switch quantity sensor under the standard execution sequence as the execution standard. The standard execution sequence can be set without programming, and the user can also set it by himself, achieving the effect of the operator being an engineer. It reduces the programming technology threshold of the operator, reduces the communication and exchange time between the user and the equipment manufacturer, shortens the development cycle, and improves the operation efficiency.

[0121] This solution can conveniently change the installation position and monitoring content of the switch sensor when the operation sequence or operation equipment changes. The operation is simple and convenient for practitioners to operate.

[0122] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A universal method for preventing errors and omissions in operations, characterized in that: Applied to a product operation line, the product operation line includes a plurality of operation equipment, each of which is equipped with a switch quantity sensor; The method comprises: In the job presetting stage, the corresponding respective job devices are pre-executed based on the standard execution sequence; According to whether the operating equipment is running, the standard signal value of the switch sensor corresponding to each operating equipment is obtained, and a standard state set corresponding to the standard execution order is obtained; wherein the standard signal value includes: a first signal value and a second signal value, the first signal value indicates that the operating equipment corresponding to the switch sensor is in a running state, and the second signal value indicates that the operating equipment corresponding to the switch sensor is in a closed state; In the operation detection stage, the operation signal value of the switch sensor corresponding to each operation device is obtained to obtain an operation state set; The job status set is compared with the standard status set to determine whether the current job execution sequence is wrong.

2. A universal method for preventing errors and omissions in operations according to claim 1, characterized in that: The standard state set includes a plurality of standard state information, wherein each of the standard state information corresponds to a set of standard signal values ​​of the switch quantity sensors corresponding to each of the operating devices after executing a standard step of the standard execution sequence.

3. A universal method for preventing errors and omissions in operations according to claim 2, characterized in that: The number of the standard status information is the same as the number of the standard steps.

4. A universal method for preventing errors and omissions in operations according to claim 1, characterized in that: Also includes: When there are multiple standard execution sequences, a process number is set for each standard execution sequence, and each standard execution sequence corresponds to a standard state set; In the job detection phase, the standard execution sequence corresponding to the current job is determined, the process number corresponding to the current job is determined according to the standard execution sequence corresponding to the current job, and the standard state set corresponding to the current job is called based on the process number corresponding to the current job; The job status set corresponding to the current job is compared with the standard status set corresponding to the current job to determine whether the execution sequence of the current job is wrong.

5. A universal method for preventing errors and omissions in operations according to claim 2, characterized in that: The comparing the job status set with the standard status set to determine whether the current job execution sequence is wrong includes: Execute each of the operation devices based on the current operation execution order, obtain the operation signal value of the switch quantity sensor corresponding to each of the operation devices according to whether each of the operation devices is running, and obtain the operation state set representing the current operation execution order; The job status information corresponding to each job step in the job status set is compared with the corresponding standard status information in the standard status set in sequence to determine whether the current job execution sequence is wrong.

6. A universal method for preventing errors and omissions in operations according to claim 2, characterized in that: The comparing the job status set with the standard status set to determine whether the current job execution sequence is wrong includes: Based on the current job execution sequence, after the operation equipment executes the current job step of the current job execution sequence, the current state information corresponding to the current job step is obtained, wherein the current state information is the current signal value of the switch sensor corresponding to each of the operation equipment after the current job step is completed; The current state information is compared with the standard state information corresponding to the current operation step in the standard state set to determine whether the current operation step is wrong, until the operation detection is completed.

7. A universal method for preventing errors and omissions in operations according to claim 1, characterized in that: The standard signal value is represented by binary, wherein the first signal value is represented by 1 and the second signal value is represented by 0.

8. A universal operation error prevention device, characterized in that: Applied to a product operation line, the product operation line includes a plurality of operation equipment, and the error and leakage prevention device includes: A plurality of switch sensors, wherein the switch sensors are installed on the operating equipment; A controller, the controller being configured to: In the operation preset stage, the corresponding operating equipment is pre-executed based on the standard execution sequence, and the standard signal value of the switch sensor corresponding to each operating equipment is obtained according to whether each operating equipment is running, so as to obtain a standard state set corresponding to the standard execution sequence; wherein the standard signal value includes: a first signal value and a second signal value, the first signal value indicates that the operating equipment corresponding to the switch sensor is in the running state, and the second signal value indicates that the operating equipment corresponding to the switch sensor is in the closed state; In the operation detection stage, the operation signal value of the switch sensor corresponding to each operation device is obtained to obtain an operation state set; the operation state set is compared with the standard state set to determine whether the current operation execution sequence is wrong; A memory is used to store the standard state set and the operation state set.

9. A universal operation error prevention device according to claim 8, characterized in that: It also includes: an alarm device, which is electrically connected to the controller and is used to issue an alarm message when the controller determines that the current job execution sequence is wrong.

10. A universal operation error prevention device according to claim 8, characterized in that: The switch quantity sensor includes: one or more of a photoelectric sensor and a proximity switch.

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