CN111240281A

CN111240281A - Production control method and system

Info

Publication number: CN111240281A
Application number: CN201911423410.6A
Authority: CN
Inventors: 赵瑞祥; 阎茂伟; 郑强
Original assignee: Qing Yanxun Technology Beijing Co Ltd
Current assignee: Qing Yanxun Technology Beijing Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-06-05

Abstract

The invention provides a production control method and a production control system, wherein the method comprises the steps of receiving position information of a positioning label; determining a first instruction according to the position information of the positioning tag and the process flow; sending the first instruction to a third output device; the invention reduces the frequency and frequency of operator mistakes during the assembly process as the positioning tag moves with the movement of the working object.

Description

Production control method and system

Technical Field

The invention relates to the field of industrial intelligence manufacturing, in particular to a production control method and a production control system.

Background

The development of control technology for decades, along with the change of industrial methods, the complexity of process and the enhancement of production process have been developed rapidly, and human beings have developed from mechanization of the first era to electrification, automation and informatization, and along with the rapid development of network technology, the automation and information sharing in the industrial production manufacturing process become urgent requirements.

At present, industrial production and manufacturing requires a person, and for a novice, it usually takes a long time to learn and become familiar with a new industrial field and a new skill. Moreover, the worker may miss and lose the work process.

At present, the requirements on the aspects of quality assessment of automatically produced products are increasingly strict, technological indexes are increasingly refined, cost is controlled, production efficiency is improved and the like are higher, and when a scheme for solving the problem of novice is introduced, factors in all aspects need to be comprehensively considered, so that higher requirements are provided for the solution.

Disclosure of Invention

In view of the above, an embodiment of the present invention provides a production control method, including:

receiving position information of a positioning label;

determining a first instruction according to the position information of the positioning tag and the process flow;

sending the first instruction to a third output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

Optionally, after sending the first instruction to the third output device, the method further includes:

if the first condition is met, sending a second instruction to the tool A;

the first condition includes one or more of:

the distance between the first output device and the third output device is smaller than the threshold value between the output devices;

or the first output equipment is positioned in the working area corresponding to the tool A;

or a third output device is located in the tool a work area.

if the first condition is not met, sending a third instruction to the tool A;

the third instruction is a paired instruction with the second instruction.

Optionally, the method further includes:

determining a first indication according to the position information of the positioning tag and the process flow;

sending the first indication to a first output device.

Optionally, after sending the first instruction to the third output device, the method further includes: receiving the first request, and judging whether a fourth device with the identity is present in an ID set of the fourth device with the identity, wherein the distance between the fourth device and the third output device is less than the alarm processing distance; if yes, sending information corresponding to the first request to one or more corresponding fourth devices;

the fourth device with the identity is a device for receiving information corresponding to the first request sent by one or more working areas based on the system configuration information.

Optionally, the first output device is a wearable device with an ultra-bandwidth module;

the position information is one-dimensional or 0-dimensional position information;

the first instruction is associated with tool a.

In a second aspect, the present invention provides a production control system comprising a server comprising one or more memories, one or more processors, and one or more modules stored in the memories and configured to be executed by the one or more processors, the one or more modules comprising instructions for, or respectively for:

receiving position information of a positioning label;

sending the first instruction to a third output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

Optionally, the one or more modules further comprise instructions for, or respectively further for, performing the steps of:

if the first condition is met, sending a second instruction to the tool A;

the first condition includes one or more of:

or a third output device is located in the tool a work area.

if the first condition is not met, sending a third instruction to the tool A;

the third instruction is a paired instruction with the second instruction.

sending the first indication to a first output device.

receiving the first request, and judging whether a fourth device with the identity and the distance from the third output device is lower than the alarm processing distance exists in an ID set of the fourth device; if yes, sending information corresponding to the first request to one or more corresponding fourth devices;

optionally, the first output device is a wearable device with an ultra-bandwidth module.

Optionally, at least 2 positioning base stations form a 2-dimensional positioning area, and at least 1 positioning base station forms a 0-dimensional positioning area or at least 2 positioning base stations form a 1-dimensional positioning area, where the location information is 0-dimensional or 1-dimensional positioning information.

The scheme of the application can be applied to free flow assembly, forced continuous flow assembly, forced intermittent flow assembly and modularized assembly process, and operators are often unfamiliar with assembly processes or assembly parts in various assembly modes due to complex assembly processes and various types and specifications of parts. According to the method, the real-time position of the working object is obtained, the production task to be implemented after the working object reaches the predefined position is obtained according to the defined process flow, the first instruction is generated according to the production task and is sent to the third output device, and therefore the third output device automatically executes the first instruction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a positioning system of the present application;

FIG. 2a is a schematic view of a production line of the present application having a 0-dimensional orientation zone;

FIG. 2b is a schematic view of a production line of the present application with a 1-dimensional positioning area;

FIG. 2c is a schematic view of a production line of the present application with a 2-dimensional positioning area;

FIG. 3a is a schematic view of a production line of the present application having a 0-dimensional registration zone and a 2-dimensional registration zone;

FIG. 3b is a schematic view of a production line of the present application having a 1-dimensional registration zone and a 2-dimensional registration zone;

FIG. 4 illustrates a production control method in one embodiment of the present application;

FIG. 5 is a production control method in another embodiment of the present application;

FIG. 6 is a schematic illustration of a production line area in one embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It is to be understood that the embodiments in this disclosure can be combined arbitrarily without obvious disadvantages, and the combination is not limited in any way in the specific embodiments.

The scheme provided by the application is only described by taking an automobile production process as a description object to explain and illustrate the scheme, and it can be understood that the scheme provided by the application can also be applied to the processes of other article production or service provision, for example, the scheme can be widely applied to the operation of machine equipment in industries such as production, manufacturing, aviation, automobiles, energy sources and the like, and scenes such as large retail express packaging and sorting. It can be understood that when the solution provided in the present application is applied to the processes of different article production or service provision, the required processes and the settings of the production lines are different due to the different processes of different article production or service provision.

To facilitate an understanding of the present application, the concepts used in the present application will now be briefly described:

the assembly line may also be referred to as a production line;

the work area may be an assembly area on a production line;

the first output device may be a watch tag;

the second output device may be an indicator light on a case containing the first object;

the third output device may be a tool, and in different embodiments, may be a different physical entity, such as a robot, wrench, camera, etc.;

the work object may be, for example, an automobile on a production line;

the tool may be a tool for attaching an accessory to a work object;

the accessory may be, for example, a vehicle door, an interior trim, or the like;

the part can be a part for fixing a vehicle door and an interior trim;

the tool, fitting, part described above may be referred to as a first object;

the system described in the present application includes a positioning system as shown in fig. 1, where the positioning system includes a positioning tag, a positioning base station, a solution server, and necessary communication transmission equipment such as an optical fiber transceiver, a switch, etc. connecting between the positioning base station and the solution server. The automobile is attached with a positioning tag, the positioning tag is provided with a unique positioning mark, and the positioning mark corresponds to the automobile mark, so that the positioning tag can distinguish the automobile from other automobiles; the positioning identifier is typically a sequence of numbers and/or letters. The positioning label is a positioning label with a UWB module, and the physical form of the positioning label can be a H-shaped flat card shape, or a cuboid with a fixed base or a magnetic base. In some embodiments, the position of the positioning base station is known, the positioning tag is attached to a movable object, UWB communication is performed between the positioning tag and the positioning base station, the positioning tag periodically sends position data to the positioning base station, and the solution server resolves the data of each tag in real time to obtain position information of the tag. It will be appreciated that the location tag may be integral with the electronic device or may be a separate physical circuit module.

The positioning system may further comprise a monitor display, a database server, etc., the resolving server also being referred to as a location server. Positioning base stations, positioning tags, pipe transceivers, switches and the like need to be deployed in a positioning scene, and a solution server, a monitoring monitor and the like can be deployed in a monitoring room.

In one embodiment of the present application, as shown in fig. 2, the system described herein comprises an automotive production line comprising a plurality of automobiles (work objects) to be assembled along the direction of travel of the production line, the production line being divided into a plurality of work areas, such as

work areas

204a, 204b in fig. 2, each work area performing a different assembly or inspection process, some work areas performing fixed assembly or inspection processes and others performing motorized assembly or inspection tasks, depending on the production task. And the automobile is conveyed to each working area on the production line through the assembly conveying line according to a preset execution flow, so that the corresponding process is completed. It will be appreciated that although the assembly line is also an important component of an automotive production line, it is not shown in the figures. It will be appreciated that the production line is shown in simplified form, and in an actual working environment, the production line is not straight and it is difficult to determine the median or boundary line of the production line.

In addition, the system described herein may also have other hardware that cooperates with the manufacturing execution system software, such as lenses for machine vision inspection, robots for performing material movement or material assembly, and the like.

Some embodiments of the present application further include a customer premise equipment (first output device), a manufacturing execution server. The manufacturing execution server runs corresponding manufacturing execution system software for monitoring production, scheduling production and scheduling, quality process monitoring and the like, thereby realizing production management, equipment management and personnel management. The manufacturing execution server may be physically one service or may be realized by cooperation of different servers. The customer premise equipment may communicate with the manufacturing execution server. The client device may include, but is not limited to, an image input module, an image output module, a voice input module, a voice output module, a text input module, a text output module, a vibration module, a buzzer module, a key input module, etc. The client device may be fixed in a work area on a production line, or may be a mobile device, such as a head-mounted mobile device or a smart watch having a display screen.

In one embodiment of the present application, a production control method includes:

receiving position information of a positioning label;

sending the first instruction to a third output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

The work object 206a carries the positioning tag 207a, the positioning tag 207a periodically sends position data to the positioning base station 201a, and the resolving server (not shown in fig. 2a-2c, and the deployment and connection relationship may refer to fig. 1) resolves the data of each tag in real time, so as to obtain the position information of the work object. It can be understood that the location data includes an ID of a positioning tag, the ID of the positioning tag is used to distinguish the positioning tag from location data sent by other positioning tags, and the ID of the positioning tag is associated with an ID of an automobile, for example, when the positioning tag is attached to an automobile, a production number of the automobile may be associated with the ID registration of the positioning tag, so that the automobile a corresponding to the positioning tag can be known when the positioning tag is obtained. The position information of the work object may be obtained in zero, one, two or three dimensions, depending on the different positioning system deployment.

The positioning system shown in fig. 2 is a zero-dimensional positioning system, in a working area, only one effective signal of a positioning base station covers the working area, but the effective signals of other base stations cannot completely cover the working area due to physical separation, signal shielding or distance, that is, 1 positioning base station 201a in the working area 204a in fig. 2a forms a 0-dimensional positioning area. The positioning base station 201a may be disposed in a central location of the working area 204 a. The positioning tag 207a sends position data to the positioning base station 201a, the position calculation server obtains 0-dimensional position information of the positioning tag 207a after calculating the position data, namely the position information of the positioning tag 207a relative to the base station 201a, and judges that the automobile 206a is located in an area for executing a task according to the distance between the positioning tag 207a and the positioning base station 201a, and at the moment, corresponding tasks are implemented on the automobile a in the working area 204 a.

As shown in fig. 2b, in other embodiments, only two effective signals of the positioning base stations in one working area cover the working area, i.e. 2 positioning base stations 201a in the working area 204a in fig. 2b form a one-dimensional positioning area. The positioning system is a one-dimensional positioning system, and the position information of the positioning label is one-dimensional positioning information. The positioning tag 207a sends position data to the positioning base station 201a, the position calculation server obtains one-dimensional position information of the positioning tag 207a after calculating the position data, and judges that the automobile 206a is located in the area for executing the task according to the distance between the positioning tag 207a and the positioning base station 201a, and at this time, corresponding tasks are implemented on the automobile 206a in the working area 204 a.

As shown in fig. 2c, in another embodiment, in an operating area, at least 3 effective signals of the positioning base stations cover the area, that is, at least 3 positioning base stations 201a in the operating area 204a in fig. 2c form a two-dimensional positioning area. The positioning tag 207a sends position data to the positioning base station 201a, the position calculation server obtains two-dimensional position information of the positioning tag 207a after calculating the position data, namely, the relative position of the positioning tag 207a on a map, and judges whether the position of the automobile 207a is located in the working area 204a by judging the relationship between the position information of the positioning tag 207a and the positioning area 204a, so as to judge whether to implement corresponding tasks on the automobile a in the working area 204 a.

It is understood that the above-mentioned determination of whether to implement the corresponding task on the vehicle a in the working area 204a has many alternative ways, for example, in some embodiments, by determining the distance between the position of the vehicle a and the anchor point positioning tag, if the distance is less than the threshold value, it is determined that the vehicle a is located in the area where the task is executed, and then the corresponding task defined in the process flow will be implemented on the vehicle a. In other embodiments, it is determined that the corresponding task is to be performed on the vehicle a based on the position of the vehicle a crossing the virtual boundary line; it will be appreciated that the schemes for determining whether a corresponding task is to be performed on the vehicle a are not exhaustive herein. In addition, it will be appreciated that the extent of the working region 204a is determined in a manner that is related to the positioning dimensions of the positioning system and the manner in which the regions are divided, the positioning accuracy, and the tolerances on the production line.

It is to be understood that the embodiments described herein are within the scope of the claims. It is understood that the scope of the claims of the present application for determining the first indication or the first instruction according to the position information of the locator tag and the process flow includes various embodiments of the above embodiments for determining whether the corresponding task is to be performed on the vehicle. Furthermore, to the extent that technical features are described in this specification in a general language, which is intended to be limited by the nature of the language employed, the scope of protection should be understood to include various alternative embodiments to the specific features described in this application, as well as other alternative embodiments based on the principles of the general language. For example, when describing the distance between a first object and a second object, the protection range of the method comprises the steps of attaching a label A to the first object, attaching a label B to the second object, and judging the distance between the first object and the second object according to the label A and the label B; the protection scope also includes attaching the tag a to a first object, arranging a second object in a virtual electronic fence, and comparing the distance between the tag a and the electronic fence, and further alternatives refer to the related embodiments of the same principle explained herein.

In the present application, the process flow corresponding to the automobile on the production line may be obtained by the manufacturing execution server, the process flow may be a general term for all assembly steps with a sequential relationship that need to be executed by the automobile on the production line, or a general term for some assembly steps with a sequential relationship that need to be executed on the production line, and the process flow may be stored in a computer in a configuration file or a table or other manners. In one embodiment of the present application, the operations required for assembling, repairing or performing other functions on the automobiles on the production line are separated into individual operations one by one, each operation is composed of a series of tasks, and one task includes a task number, a task operation specification, tools/equipment required by the task, parts, accessory information (collectively referred to as a first object), and the like. The task operation specification is, in some embodiments, information of tool parameters or part installation locations or a schematic of a task operation, or the like. Tool parameters include, but are not limited to, torque, angle, and/or pulse values through them, etc.; mounting locations include, but are not limited to, front wheels, rear wheels, front beams, and the like. For example, in one embodiment of the present application, the task operating specification for a task may be "at installation site No. 2, wrench/power wrench, 2 turns" and the accessory information required for the task may be "shim No. 3 and hex-angle screw No. 5"; in another embodiment of the present application, the task operation specification may be "shoot 1 sheet". Operational tolerances (which may vary from tool to tool), etc. are not described in this application, but may be included in the task operational specification as would be known to one skilled in the art.

After receiving the first instruction, the third output device analyzes the first instruction, and the corresponding first instructions and the analysis modes of different third output devices may be different. For example, in some embodiments, parsing the first command results in a command to control, for example, a robot motion or to control a camera shot.

In one embodiment of the present invention, the manufacturing execution system software defines the relevant process flow for each vehicle type in production, and the process flow and error information or status of each vehicle are recorded, and the recording mode may be a table mode. For example, a part of the process flow may be: after the task A is finished, the automobile 206a is conveyed to a working area A through a production line, and a task 1, a task 2 and a task 3 … … are required to be finished in the working area A; upon receiving the location information of the car 206a, it is determined whether the location of the car 206a is within the work area 204a, thereby determining whether the corresponding task 1, task 2, and task 3 … … task N is to be performed on the car a. If it is determined that the corresponding task 1, task 2, task 3 … …, task N is to be performed on the vehicle a, a first instruction or a first command is generated according to the task 1, task 2, task 3 … …, task N. After completing task 1, task 2, and task 3 … … in work area 204a after task N, the vehicle 206a may enter work area 204b to complete the next series of tasks as directed by the process flow.

In this application, the third output device is a device for executing a first instruction, for example the third output device is an electric wrench, the first instruction is a 2-turn rotation at 12:00: 00; for another example, the third output device is a robot arm, and the first command is a displacement command of the robot arm. For example, the third device is a dot matrix laser scanner, and the first instruction is used to control the scanner to transmit laser light of a preset frequency.

According to the method, the position of the working object is judged, so that the third output equipment is automatically driven to execute the corresponding instruction, the requirements on the quality and the training time of the operating personnel are reduced, and the cost of an enterprise is saved.

In one embodiment of the present application, if the first condition is met, a second instruction is sent to tool a; the first condition includes one or more of: the distance between the first output device and the third output device is smaller than the threshold value between the output devices; or the first output equipment is positioned in the working area corresponding to the tool A; or the third output equipment is positioned in the working area corresponding to the tool A.

In one embodiment of the present application, a map of the production line is obtained by manual measurement, semi-automatic or fully automatic, and the map is respectively used to calibrate the working

areas

524a and 523a of the tool 1 and the tool 2, it is understood that the tasks performed in different working areas may be different, and the working areas of the used tools and the working may be different, as shown in fig. 6, the working

areas

524a, 523b and 524ab, 523b in the working

areas

504a and 504b, respectively; the first output device is a wearable device with a positioning tag, the positioning tag moves along with the movement of the wearable device, and the positioning tag can be integrated with a circuit board of the wearable device or separated from the circuit board. Or the tool 1 is attached with a positioning tag which moves along with the movement of the tool 1, the positioning tag can be integrated with a circuit board of the tool 1 or separated from the circuit board, or the tool 1 is separated from the positioning tag, and the tool 1 provides a power supply and a communication interface for the positioning tag. After the automobile a enters the working area a, according to the process flow corresponding to the automobile a, the corresponding tasks 1 and 2 in the working area 504a of the automobile are obtained, and each task respectively comprises an installation site, a bolt point process type, a tool type, an accessory, an operation specification and the like which are required to be installed in the working area a. After the operator moves the tool 1 into the tool 1 operation area 524a, a second command is sent to the tool 1 to release the use restriction on the tool 1, so that the operator can use the tool to work on the corresponding mounting site. Sending a third command to tool 1 after the operator moves tool 1 out of the tool 1 working area 524a restricts the function or use of tool 1, and tool 2 is similar and will not be explained. In another embodiment of the present application, if the distance between the first output device and the third output device is lower than the distance between the output devices, the tool 1 is unlocked; if the distance between the first output device and the third output device is greater than the distance between the output devices, the tool 1 is locked. The distance between the output devices is stored in the system configuration, which may be operator set or may be a default configuration of the system.

In some embodiments, after the operator moves tool 1 into tool 1 working area 524a, a second command, which may be a command different from the first command, is sent to tool 1.

It is understood that information such as the level of a processing person of a task, a user terminal, authority corresponding to the level, a working area in charge and the like is also defined in some manufacturing execution system software. In some embodiments of the present application, a receiving person wears a positioning terminal device having an ultra-bandwidth positioning module, when the tool 1 is locked, an operator sends a request (a first request) to a fault system, and after the fault system receives the request, the receiving person of the request is determined according to a level of a processing person, a right corresponding to the level of a user terminal, a position of the processing person, and a working area in charge of the processing person, that is, it is determined whether a fourth device whose distance from a third output device is less than an alarm processing distance exists in an ID set of the fourth device having an identity. After receiving the request, the receiving personnel can rush to the corresponding working area according to the prompt of the worn mobile terminal equipment, and the receiving personnel can unlock the tool 1 through the mobile terminal equipment or other modes.

The working area of the tools 1 and 2 can be determined by the mounting site. In some embodiments, the working area of the tool is calculated from the location and tolerances of the mounting site. In some embodiments, the transportation tool of the production line does not have a positioning function, and cannot determine the position of the stop of the automobile a after being transported to the working area a, in another embodiment of the present application, a positioning tag is placed on a fixed position on the automobile 206a, for example, a positioning tag is placed on a left rear view mirror of the automobile in a unified manner, the installation site 1 and the installation site 2 correspond to the fixed position on the automobile a, and the relative positions of the installation site 1 and the installation site 2 are fixed. After the tool 1 enters the working area A, the position of the installation site is determined, the coordinates of the installation site are determined according to the coordinates of the positioning label and the relative position of the installation site on the automobile A, and the position of the working area of the tool 1 is determined according to the coordinates of the installation site. So that after the operator has moved the tool 1 into the working area of the tool 1, the restrictions on the use of the tool 1 are removed, so that the operator can use the tool to work on the respective mounting site. Limiting the function or use of the tool 1 when the operator moves the tool 1 away from the working area of the tool 1.

In some embodiments, the manufacturing execution server and the position resolution server are physically the same computer, and in other embodiments, they are separate computers.

In one embodiment of the present application, the steps of the production assistance method comprise:

receiving position information of a positioning label;

determining a first indication according to the position information of the positioning label and the process flow;

sending the first indication to a first output device;

the positioning tag moves with the movement of the work object.

The first indication comprises a first operation and/or first object information.

The above steps are specifically as follows in one embodiment of the present application: as shown in fig. 2a-2c, a map of the production line is obtained by manual measurement, semi-automatic or full-automatic means, and the map at least includes a working area 204 a; the positioning tag 207a attached to the automobile 206a periodically sends position data to the positioning base station, and the position calculation server obtains the position information of the positioning tag 207a after calculating the position data, namely, obtains the position of the automobile 206 a; according to the production arrangement and scheduling of the software of the manufacturing execution system, the automobile A enters the working area A. And receiving the position information corresponding to the positioning tag, judging whether the position of the automobile A is located in the working area 204a, and if so, outputting task prompt information (a first instruction) to the user terminal equipment according to the task which is defined in the manufacturing execution system software and is executed by the automobile A in the working area 204a according to the process flow. The task prompt message includes first operation and/or first object information. That is, the task prompt information may include only the first operation or only the first object information, or may include a combination of the first operation and the first object information. For example, the first operation includes, but is not limited to, a task operation specification for performing a task within the work area 204a, and the first object information includes, but is not limited to, one or more tools/equipment, parts, accessory information, etc. required for the task.

In an embodiment of the application, the task operation specification of task 1 may be "No. 2 wrench, and 2 turns are screwed", and the accessory information required for task 1 may be "No. 3 gasket and No. 5 hexagon screw", and after receiving the position information of the automobile a, if it is determined whether the position of the automobile a is located in the working area a, a text synthesized by "No. 3 gasket and No. 5 hexagon screw" and "No. 2 wrench, and 2 turns are transmitted to the first output device as a first indication. In other embodiments, only the operation specification of the task may be used as the first indication, or only the required accessory information may be used as the first indication, without synthesizing the operation specification and the accessory information into one piece of first indication.

Although in the above embodiments, the first indication is described by taking the first indication as text as an example, it is understood that the first indication may be any one or more of video, image, voice, text and symbol. The first indication is associated with a task, which can be obtained through a process flow. Tasks defined in the process flow include, but are not limited to, performing operations, disassembly, assembly, repair, inspection, and the like.

As shown in fig. 2a, the first output device may include, but is not limited to, a head-mounted device, a smart watch, a mobile phone, a tablet computer, and other mobile terminal devices (not shown). In other embodiments the first output device may be an electronic display panel 208b, such as a led display screen, ink screen, etc., fixed in the work area. After the first output device receives the first indication, the first output device displays the first indication, and therefore an operator who carries out related tasks can know the first indication. In some embodiments of the present application the first output device is non-location enabled, while in other embodiments of the present application the first output device is location enabled.

The scheme of the application can be applied to free flow assembly, forced continuous flow assembly, forced intermittent flow assembly and modularized assembly process, and operators are often unfamiliar with assembly processes or assembly parts in various assembly modes due to complex assembly processes and various types and specifications of parts. According to the method, the real-time position of the working object is obtained, the production task to be implemented after the working object reaches the predefined position is obtained according to the defined process flow, the first indication information is generated according to the production task and is sent to the first output device, so that an operator who implements the relevant task can know the first indication.

In an embodiment of the present application, as shown in fig. 3a, a 0-dimensional positioning system is deployed in a part or all of the areas 301a-301c on the production line, that is, only 1 positioning base station is respectively arranged in one or more working areas on the production line, so as to reduce the hardware cost for positioning base station deployment, and two-dimensional positioning is used in the rework area/product area 302, that is, a 2-dimensional positioning base station is arranged in the rework area/product area, so that an operator can conveniently and quickly find the working object in the rework area. Or as shown in fig. 3b, a one-dimensional positioning system is deployed in a part or all of the areas 401a-401c on the production line, i.e. a one-dimensional positioning system is formed between the base stations on the production line, so as to reduce the hardware cost for positioning the base station deployment, while a two-dimensional positioning is used in the rework/product area 402. Compared with a system which totally adopts two-dimensional positioning, the scheme has low implementation cost. Compared with the RFID positioning mode, the positioning tag can be always attached to an automobile from the beginning to the leaving of the production line, the tag replacement times are reduced, the complexity of production management and the time cost are reduced, and therefore the production cost is reduced.

In one embodiment of the present application, since the production task is affected by orders and usually fluctuates greatly, in order to adapt to the change of the number and requirements of the orders, it is often necessary to frequently allocate the devices and processes on the production line, and in some cases, it may be necessary to change the layout relationship of the work area, thereby reducing the time consumed by moving the parts and products in the whole process flow and increasing the production efficiency of the production line; in some cases, it may be necessary to change the tasks performed in the work area in order to optimize the production line to more closely match the production tasks, and these adjustments are often frequent. In the solution of the present application, for the above-mentioned production line changes, fewer configuration steps are required, for example, in one embodiment, a map of the production line is obtained by manual measurement, semi-automatic or fully automatic, and the map at least includes the

work areas

204a, 204 b; for the change of the layout relation of the working areas, the positions or the ranges of different working areas on the map are only required to be adjusted or calibrated; in one embodiment, the anchor positioning tag/positioning base station is placed in the working area, if the position or layout of the working area is changed, the anchor positioning tag/positioning base station in the working area is moved correspondingly, and the area where the automobile is located to execute the task is judged according to the distance between the positioning tag on the automobile and the anchor positioning tag/positioning base station in the working area, so that the first indication is accurately sent.

In one embodiment of the present application, the vehicle 206a is transported through the production line to the work area 204a according to a process flow, wherein task 1, task 2, task 3 … …, task N, is to be completed in the work area a; after receiving the location information of the car a, it is determined whether or not the location of the car 206a is within the work area 204a, thereby determining whether or not the corresponding task 1, task 2, and task 3 … … task N is to be performed on the car 206 a. If it is determined that the corresponding task 1, task 2, task 3 … …, task N is to be performed on the vehicle 206a, a plurality of first instructions are generated according to the task 1, task 2, task 3 … …, task N, and the corresponding first instructions are output in the first output device in the order of execution of the tasks. It will be appreciated that in some embodiments, portions of the tasks may be in parallel, and the order between outputting such tasks in the first output device may be random.

Compared with automation equipment, the method has the advantages that the operator can receive more complex instructions at one time, and the first instruction is displayed in sequence, so that misjudgment of the operator on the operation sequence is reduced when the operator executes tasks.

In an embodiment of the application, the task output by the first output device corresponds to an interactive confirmation process, a corresponding interactive interface is shown in the figure, the interface displayed in the figure is the interface displayed by the first output device after receiving the first indication, and the interactive interface distinguishes between displaying the completed item and the uncompleted item. The operator may interact with the interface in any one or more of a key, touch screen, voice, or eye control, to change the completion status of the project.

In one embodiment of the present disclosure, the positioning tag a attached to the automobile a periodically sends position data to the positioning base station, and the position calculation server obtains the position of the positioning tag a after calculating the position data, that is, obtains the position of the automobile a. According to the production arrangement and scheduling of the manufacturing execution system software, the automobile A enters the working area A, whether the position of the automobile A is located in the working area A is judged, and if the position of the automobile A is located in the working area A, a plurality of pieces of task prompt information (first instructions) are output to user terminal equipment (first output equipment) according to tasks, defined in the manufacturing execution system software, of the automobile A, which are executed in the working area A and have a confirmed process flow. The plurality of pieces of task prompt information are related to tasks executed by the automobile in the working area A; the user terminal displays the task prompt information in sequence according to the task execution sequence; after completing the content corresponding to one prompt message, the operator triggers the user terminal device to change the state of the task prompt message through the key or the touch screen and the user terminal device. It will be appreciated that in some embodiments, when the state of the task prompt information is triggered to be changed, information is also triggered to be sent to the server to indicate that the content corresponding to the task prompt information is completed.

In one embodiment of the present application, the process flow defined in the manufacturing execution system software includes: task a, which is performed by car 206a within work area 204a, and task B, which is performed by cars 206a, 206B within work area 204B. Task a and task B may be a collective term for a collection of a series of tasks. The first output device is worn by an operator, the user terminal device is provided with a positioning module, and the user terminal device judges according to position data provided by the positioning module, prompts the operator to execute task prompt information corresponding to a task in the working area 204a if the operator is located in the working area A, and prompts the operator to execute task prompt information corresponding to a task in the working area 204b if the operator is located in the working area 204 b. An operator is generally responsible for a region, because production tasks are affected by orders, the production tasks usually fluctuate greatly, the number of operators is in a tension state in order to adapt to changes of the number of orders and requirements, if the operators are trained to learn more working skills, longer time is needed, and requirements for the operators are increased, so that enterprises pay more cost in terms of time and labor cost, and the operators are responsible for multiple tasks or multiple working regions according to the scheme, so that the time and labor cost of the enterprises are reduced. In some embodiments of the present application, the user terminal device includes a positioning module consistent with a positioning tag carried by the automobile 206a, so that the user terminal device has a unique positioning identifier, position data is transmitted between the user terminal worn by an operator and the positioning base station in a UWB manner, the user terminal device periodically sends the position data to the positioning base station through the positioning module, and the resolving server resolves each position data in real time, thereby obtaining the position of the user terminal.

In an embodiment of the present application, the user terminal has a positioning function, and after receiving the task prompt information corresponding to the working area 204a, if the location of the user terminal is not matched with the area limit corresponding to the working area 204a, an error is prompted, and if the location is not sequentially checked, an execution error is prompted.

In one embodiment of the present application, according to the production schedule and schedule of the software of the manufacturing execution system, the automobile 206a enters the working area 204a, the positioning tag 207a attached to the automobile 206a periodically transmits the position data to the positioning base station, and the position calculation server obtains the position of the positioning tag 207a, i.e. obtains the position of the automobile 206a after calculating the position data. Whether the position of the automobile 206a is located in the work area 204a is judged, if the position is located in the work area 204a, task prompt information (first instruction) is output to user terminal equipment (first output equipment) according to a task which is defined in the manufacturing execution system software and is executed by the automobile 206a in the work area 204a according to the process flow, and the task prompt information comprises a plurality of sub items. A plurality of sub-items of the task prompt packet are related to tasks performed by the vehicle in the work area 204 a; the user terminal displays the sub items of the task prompt information in sequence according to the execution sequence of the sub items; after completing the content corresponding to one prompt message, the operator interacts with the user terminal device through a key or a touch screen or a voice mode, so that the user terminal device is triggered to change the completion state of the task prompt message.

In one embodiment of the present application, a map of the production line is obtained through manual measurement, semi-automatic or full-automatic, and the map at least includes the work area 204a and the movement area of the operator when performing the task corresponding to the work area 204 a. And if the operator triggers the user terminal to change the state of the task prompt information and if the position information of the user terminal equipment is not in the moving area of the operator, sending warning prompt information to the user terminal.

In one embodiment of the present application, the map at least includes a work area 204a, a task 1, a task 2, and a task 3 … … need to be completed in the work area 204a, where the task 1, the task 2, and the task 3 correspond to different sites, respectively, and if an operator triggers the user terminal to change a task prompt information state, if a sequence of sites where the user terminal device passes is different from a sequence of sites where the tasks are executed, a warning prompt information is sent to the user terminal or the user terminal is prohibited from changing the state of the task prompt information.

In other embodiments, when the positioning tolerance or the movement of the operator during the execution of the corresponding task is considered, each task corresponds to a different region range, and if the operator triggers the user terminal to change the state of the task prompt information, and if the sequence of the region where the user terminal device triggers the task prompt information is different from the sequence of the region determined by the task execution sequence, the warning prompt information is sent to the user terminal.

In one embodiment of the present application, the user terminal has a positioning function, and obtains a map of the production line by manual measurement, semi-automatic or full-automatic methods, and the map is respectively marked with a tool 1 storage area 521a, a tool 1 working area 523a, a tool 2 storage area 522a and a tool 2 working area 524 a. After the vehicle is defined in the process flow to enter the work area 504a, task 1 and task 2 are performed. Task 1 uses tool 1 and task 2 uses tool 2. After the automobile A enters the working area A, a first indication 1 corresponding to the task 1 is sent to the user terminal, when an operator moves to the tool 1 storage area 521a, a first indication 2 corresponding to the task 1 is sent to the user terminal, and if the operator moves to the tool 1 working area 523a, the use limitation of the tool 1 is cancelled, and the operator can directly use the tool or can open the tool. In some embodiments, the tool 1 is a precision manufacturing tool, the manufacturing execution system controls the tool 1 to be turned on or configured to use its parameters, and the cancellation of the use limitation of the tool 1 may be the power supply of the tool 1 by the manufacturing execution system. In one embodiment of the present application, if the operator returns from the tool 1 working area 523a to the tool 1 storage area 521a, a restriction on the use of the tool 1 is added, such as turning off the power of the tool 1 or changing the state of the tool 1 from an operating state to a resting state. In some embodiments, a use limit for the implement 1 is added when the implement 1 leaves the work area of the implement 1. In some embodiments the tool 1 storage area, the tool 2 storage area are the same size or add appropriate tolerances to accommodate these tool areas or cases, respectively. In some embodiments, the tool 1 storage area, the tool 1 work area, the tool 2 storage area, the tool 2 work area, and the work area a are present simultaneously, with the tool 1 work area, the tool 2 work area, and the work area a having portions that overlap in location.

In some embodiments, further comprising the step of:

if the distance between the first output device and the first object is lower than a first threshold value, indicating at least one second output device in the second output devices and/or indicating the first output device to output a second indication;

the second indication is to indicate that the first object is below a first threshold distance from the first output device.

As shown in fig. 6, the user terminal device has a positioning function, and the positioning system is a two-dimensional positioning system. The map of the production line is obtained through manual measurement, semi-automatic or full-automatic mode, and the

storage areas

521a, 522a, 521b and 522b can be respectively marked with objects such as parts, tools or accessories. In one scene, according to a set program flow, user terminal equipment receives a first instruction, wherein the first instruction instructs an operator to obtain a target object from a storage area 1, namely the target object in the storage area 1 is a first object; if the operator moves to the storage area 521a, the corresponding indicator light in the storage area 521a indicates that the operator reaches the correct object position, and the corresponding indicator light in the storage area 521a, that is, the second output device, that is, at least one of the second output devices outputs a second indication.

Alternatively, the user terminal device may receive a first instruction indicating that the operator obtains the target object from the storage area 521a according to the set program flow, and the first output device may output a second instruction indicating that the user terminal device has reached the storage area 1, for example, by displaying a notification message or lighting a lamp when the operator moves to the storage area 521 a.

In some embodiments of the present application, the method further includes instructing at least one of the second output devices and/or instructing the first output device to output a third instruction if the distance between the first output device and the second object is lower than a second threshold;

the third indication is for indicating that the distance of the second object from the first output device is below a second threshold.

The second object is an object different from the first object, and the first object is a subject included in the first indication.

If the operation moves to the

storage area

522a or 521b or 522b, an indicator lamp in the corresponding storage area indicates that the operator arrives at the wrong position, or the first output device outputs information indicating that the operator arrives at the wrong position.

In one embodiment of the present application, in a work area on a production line, tools or parts or accessories and the like necessary for performing an assembling or inspection process are arranged. In some embodiments, different tools, parts, and accessories are assigned different storage areas, and the map identifies the storage areas in which these items are located. In these areas, there are provided respective signal lights, which can be understood to be integral with the box containing the items or separate from the box containing the items, for example on a shelf. Upon receiving the location information of the car 206a, it is determined whether the location of the car 206a is within the work area 204a, thereby determining whether the corresponding task 1, task 2, and task 3 … … task N is to be performed on the car 206 a. If it is determined that the corresponding task 1, task 2, task 3 … …, task N is to be performed on the vehicle 206a, the corresponding signal lights are sequentially turned on according to the task 1, task 2, task 3 … …, task N to indicate the position, etc., i.e., to indicate at least one of the plurality of second output devices to output a fourth indication. And the operator takes or selects the object from the corresponding storage area according to the indication of the indicator lamp. In other embodiments, there is a rule of correspondence between the number of the item and the location of the storage space, and the item can be obtained according to the number of the item.

In one embodiment of the present application, if the position information of the positioning tag indicates that the distance between the working object and the third position area (the working area 204a) is less than a fourth threshold value, and the working object has a tendency to enter the third position area, a fourth indication is output, and the fourth indication is used for indicating that the first object is prepared. In some embodiments, the first object is larger in volume or weight or some tools need to be preheated, etc., and the first object is prepared in advance by judging that the position information of the positioning tag indicates the distance between the working object and the third position area (the working area 204a), so that the time consumption of the assembly process is reduced, and the time cost is reduced. It is understood that the indication of the preparation of the first object may be an indication of a person preparing the first object, or an indication of a working state in which the person is ready for the tool, so that the assembly work or the like can be carried out quickly after the working object enters the working area. In other embodiments, the indication that the first object is ready may also indicate that the machine is ready to enter the operating state according to the fourth instruction.

If the position information of the positioning tag indicates that the distance between the working object and the fourth position area (the working area 204a) is greater than a fifth threshold value and the working object has a tendency to be far away from the fourth position area, outputting a fifth indication, wherein the fifth indication is used for indicating that the working object is far away from the fourth position area.

In one aspect, the present invention provides a production control method, including:

receiving position information of a positioning label;

sending the first indication to a first output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

In an embodiment of the application, the first indication comprises a first operation and/or first object information.

In one embodiment of the present application, the first object comprises one or more tools, accessories or parts;

the working object is an automobile on a production line;

the first output device is a smart watch with an ultra-bandwidth positioning module.

In one embodiment of the present application, the first output device is a mobile terminal.

In one embodiment of the present application, the position information is 1-dimensional or 0-dimensional.

In an embodiment of the present application, the determining the first indication according to the position information of the positioning tag and the process flow includes:

if the first output equipment is located in the first position area, determining a first indication A according to the position information of the working object and the process flow;

if the first output equipment is located in the second position area, determining a first indication B according to the position information of the working object and the process flow;

the first location area is an area different from the second location area.

In one embodiment of the present application, includes: after sending the first indication to a first output device, comprising the steps of:

In one embodiment of the present application, the method comprises: after sending the first indication to a first output device, comprising the steps of:

if the distance between the first output device and the second object is lower than a second threshold value, indicating at least one second output device in the second output devices and/or indicating the first output device to output a third indication;

In one embodiment of the present application, a first indication is determined according to the position information and the process flow of the positioning tag;

and then, comprising:

instructing at least one of the plurality of second output devices to output a fourth indication;

the fourth indication is indicative of a first object position.

In one embodiment of the present application, the first indication comprises at least 2 sub-items;

after the sending the first indication to the first output device, comprising:

the at least 2 sub-items are displayed in execution order.

In one embodiment of the present application, after sending the first indication to the first output device, the method further comprises the steps of: and receiving a second trigger signal, wherein the second trigger signal is used for changing the completion state of the first prompt.

In an embodiment of the present application, after receiving the second trigger signal, it is determined whether the order of the first prompt corresponding to the second trigger signal corresponds to the order of the sub-item to be confirmed, and if so, the prompt does not correspond.

In an embodiment of the application, if the position information of the positioning tag indicates that the distance between the working object and the third position area is less than a fourth threshold value, and the working object has a tendency to enter the third position area, a fourth indication is output, and the fourth indication is used for indicating that the first object is prepared.

In an embodiment of the application, if the position information of the positioning tag indicates that the distance between the working object and the fourth position area is greater than a fifth threshold, and the working object has a tendency to be far away from the fourth position area, a fifth indication is output, where the fifth indication is used to indicate that the working object is far away from the fourth position area.

In one embodiment of the present application, after receiving the location information of the positioning tag, the method includes:

sending the first instruction to a third output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

In an embodiment of the present application, after sending the first instruction to the third output device, the method further includes:

if the first condition is met, sending a second instruction to the tool A;

the first condition includes one or more of:

or a third output device is located in the tool a work area.

if the first condition is not met, sending a third instruction to the tool A;

the third instruction is a paired instruction with the second instruction.

In a second aspect, the present application further provides a mobile terminal comprising one or more memories, one or more processors, and one or more modules stored in the memories and configured to be executed by the one or more processors, the one or more modules comprising instructions for, or respectively for, performing the steps of:

receiving a first indication, wherein the first indication is determined according to the position information of the positioning label and the process flow; the positioning tag moves along with the movement of the working object; the process flow is associated with the work object.

the working object is an automobile on a production line;

the mobile terminal is an intelligent watch with an ultra-bandwidth positioning module.

In one embodiment of the present application, the location information is 1-dimensional or 0-dimensional;

the one or more modules further comprise instructions for, or respectively for, performing the steps of:

receiving a second indication;

the second indication is used for indicating that the distance between the first object and the mobile terminal is lower than a first threshold value.

In one embodiment of the application, the one or more modules further comprise instructions for, or respectively for, performing the steps of:

receiving a third indication;

the third indication is used for indicating that the distance between the second object and the mobile terminal is lower than a second threshold value.

In one embodiment of the present application, the first indication comprises at least 2 sub-items; the one or more modules further comprise instructions for, or respectively for, performing the steps of:

the at least 2 sub-items are displayed in execution order.

In one embodiment of the application, the one or more modules further comprise instructions for, or respectively for, performing the steps of: and sending a second trigger signal, wherein the second trigger signal is used for changing the completion state of the first prompt.

In one embodiment of the application, the one or more modules further comprise instructions for, or respectively for, performing the steps of: and judging whether the sequence of the second trigger signal is the same as the sequence of the corresponding sub-item waiting for confirmation, and if not, prompting to be different.

In one embodiment of the application, the one or more modules further comprise instructions for, or respectively for, performing the steps of: receiving a fourth indication; the fourth indication is for indicating that the first object is prepared.

In one embodiment of the application, the one or more modules further comprise instructions for, or respectively for, performing the steps of: and receiving a fifth indication, wherein the fifth indication is used for indicating that the working object is far away from the fourth position area.

In a third aspect, the present application provides a production assistance system, including a positioning tag, a positioning base station, a solution server, a first output device, and a first server;

the positioning tag moves along with the movement of a working object and is used for sending position data to the positioning base station;

the positioning base station is used for receiving the position data and sending the position data to the calculation server;

the resolving server is used for resolving and obtaining the position information of the positioning label according to the position data;

the first output device is to receive a first indication.

The first server comprises one or more memories, one or more processors, and one or more modules stored in the memories and configured to be executed by the one or more processors, the one or more modules comprising instructions for, or respectively for, performing the steps of:

sending the first indication to the first output device;

In an embodiment of the present application, at least 2 positioning base stations constitute a 2-dimensional positioning area, and at least 1 positioning base station constitutes a 0-dimensional positioning area or at least 2 positioning base stations constitute a 1-dimensional positioning area, and the position information is 0-dimensional or 1-dimensional positioning information.

In one embodiment of the application, the one or more modules comprise instructions for, or respectively for, performing the steps of:

the first location area is an area different from the second location area.

In one embodiment of the application, the one or more modules comprise instructions for, or respectively for, performing the steps of: if the distance between the first output device and the first object is lower than a first threshold value, indicating at least one second output device in the second output devices and/or indicating the first output device to output a second indication;

In one embodiment of the application, the one or more modules comprise instructions for, or respectively for, performing the steps of: instructing at least one of the plurality of second output devices to output a third cue signal;

the fourth indication is indicative of a first object position.

In one embodiment of the application, the one or more modules comprise instructions for, or respectively for, performing the steps of: instructing the at least 2 sub-items to be displayed in execution order;

the first indication comprises at least 2 sub-items.

In one embodiment of the application, the one or more modules comprise instructions for, or respectively for, performing the steps of: and if the position information of the positioning label indicates that the distance between the working object and the third position area is less than a fourth threshold value and the working object has a tendency to enter the third position area, outputting a fourth indication, wherein the fourth indication is used for indicating the preparation of the first object.

In one embodiment of the application, the one or more modules comprise instructions for, or respectively for, performing the steps of: and if the position information of the positioning label indicates that the distance between the working object and the fourth position area is greater than a fifth threshold value and the working object has a trend of being far away from the fourth position area, outputting a fifth indication, wherein the fifth indication is used for indicating that the working object is far away from the fourth position area.

In one embodiment of the application, the one or more module modules are or are respectively for executing the instructions of the following steps: after receiving the position information of the positioning tag, the method comprises the following steps:

sending the first instruction to a third output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

In one embodiment of the application, the one or more module modules are or are respectively for executing the instructions of the following steps: after sending the first instruction to a third output device, the method further comprises:

if the first condition is met, sending a second instruction to the tool A;

the first condition includes one or more of:

or a third output device is located in the tool a work area.

if the first condition is not met, sending a third instruction to the tool A;

the third instruction is a paired instruction with the second instruction.

The control logic of the present invention may be embodied on a computer readable medium containing executable program instructions for execution by a processor, controller, or the like, as a non-transitory computer readable medium. Examples of computer-readable media include, but are not limited to, ROM, RAM, Compact Disc (CD) -ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer readable recording medium CAN also be distributed over network coupled computer systems so that the computer readable medium is stored and executed in a distributed fashion such as by a telematics (telematics) server or a Controller Area Network (CAN).

It is to be understood that, in the present application, when the distance between the positioning tag and a certain area is calculated, the following manner may be adopted to calculate the distance between the point closest to the positioning tag in the area and the positioning tag, the distance between the midpoint of the area and the positioning tag, the gravity center of the area and the area of the positioning tag, or the distance between a fixed point in the area and the positioning tag. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A production control method characterized by comprising:

receiving position information of a positioning label;

sending the first instruction to a third output device;

the positioning tag moves along with the movement of the working object;

the process flow is associated with the work object.

2. The method of claim 1, after sending the first instruction to a third output device, further comprising:

if the first condition is met, sending a second instruction to the tool A;

the first condition includes one or more of:

or a third output device is located in the tool a work area.

3. The method of claim 2, after sending the first instruction to a third output device, further comprising:

if the first condition is not met, sending a third instruction to the tool A;

the third instruction is a paired instruction with the second instruction.

4. The method of claim 1, further comprising:

sending the first indication to a first output device.

5. The method of claim 1, after sending the first instruction to a third output device, further comprising: receiving the first request, and judging whether a fourth device with the identity and the third output device have a distance lower than the alarm processing distance in an ID set of the fourth device; if yes, sending information corresponding to the first request to one or more corresponding fourth devices;

6. The method of claim 1, wherein the first output device is a wearable device having an ultra-bandwidth module;

the first instruction is associated with tool a.

7. A production control system comprising a server comprising one or more memories, one or more processors, and one or more modules stored in the memories and configured to be executed by the one or more processors, the one or more modules comprising instructions for, or respectively for, performing the steps of: the steps included in any of claims 1-7.