Poka-yoke, or mistake-proofing, aims to eliminate human errors in manufacturing processes through simple and inexpensive devices. There are three main poka-yoke methods: contact methods use sensors to detect proper physical contact between parts; counting methods ensure the correct number of process steps occur; and motion-sequence methods check that motions happen in the proper order. Examples show that simple devices like limit switches can detect missing parts or out-of-sequence steps, and cost little to implement while reaping large savings by reducing defects.
Poka-Yoke is concept which stops you from doing mistakes.It is reintroduced by the top consultant of Toyota Production System,he developed it for his workers,so that they can work easily without forgetting any steps to prepare the product.
It’s a quality assurance process introduced by Japanese engineer Shigeo Shingo. This term is used in Japanese language as “Poka” meaning mistake and “Yoke” meaning prevent i.e. mistake preventing or mistake proofing technique.
The purpose of Poka-Yoke is to develop processes to reduce defects by avoiding or correcting (design to show alerts or warning messages to the user) mistakes in early design and development phases.
Poka-Yoke is concept which stops you from doing mistakes.It is reintroduced by the top consultant of Toyota Production System,he developed it for his workers,so that they can work easily without forgetting any steps to prepare the product.
It’s a quality assurance process introduced by Japanese engineer Shigeo Shingo. This term is used in Japanese language as “Poka” meaning mistake and “Yoke” meaning prevent i.e. mistake preventing or mistake proofing technique.
The purpose of Poka-Yoke is to develop processes to reduce defects by avoiding or correcting (design to show alerts or warning messages to the user) mistakes in early design and development phases.
This Presentation gives a brief idea on what is Poka yoke and the various types of Poka yoke with examples. It also talks about the short comings of Poka yoke
Poka Yoke is a Japanese technique to avoid mistakes before they happen. Include History Overview Examples of mistake proofing and what are the benefits from this system . What is Root cause ,What is 5 Why technique
Poka yoke: The Science of Mistake Proofing in SoftwareGurpreet Luthra
Presentation on Poka Yoke in Software which was delivered by Dhaval Doshi and Gurpreet Luthra at ThoughtWorks xConf in July 2012.
For details refer to Blog Post:
http://techie-notebook.blogspot.in/2012/07/poka-yoke-applying-mistake-proofing-to.html
This Presentation gives a brief idea on what is Poka yoke and the various types of Poka yoke with examples. It also talks about the short comings of Poka yoke
Poka Yoke is a Japanese technique to avoid mistakes before they happen. Include History Overview Examples of mistake proofing and what are the benefits from this system . What is Root cause ,What is 5 Why technique
Poka yoke: The Science of Mistake Proofing in SoftwareGurpreet Luthra
Presentation on Poka Yoke in Software which was delivered by Dhaval Doshi and Gurpreet Luthra at ThoughtWorks xConf in July 2012.
For details refer to Blog Post:
http://techie-notebook.blogspot.in/2012/07/poka-yoke-applying-mistake-proofing-to.html
POKA-YOKE - A Lean Strategy to Mistake ProofingTimothy Wooi
A Lean Strategy in Human Error Prevention aims to detect and correct possible error immediately, eliminating defects at the source.
Poka-Yoke overcome the inefficiencies of inspection through the use of automatic devices that seek,
1.Not to accept a defect for the process
2.Not to Create a Defect
3.Not to Allow a Defect to be passed to the next process
Its purpose is to eliminate product defects by preventing, correcting, or drawing attention to human errors as they occur.
The concept was formalized, and the term adopted, by Shigeo Shingo as part of the
Toyota Production System.
It was originally described as baka-yoke, meaning "fool-proofing“ or “idiot proofing” but the name was later changed to the milder poka-yoke.
Implementation of Algorithm for Vehicle Anti-Collision Alert System in FPGA IJECEIAES
Vehicle safety has becoming one of the important issues nowadays, due to the fact the number of road accidents, which cause injuries, deaths and also damages, keeps on increasing. One of the main factors which contribute to these accidents are human's lack of awareness and also carelessness. This paper presents the development and implementation of an algorithm to be utilized for vehicle anti-collision alert system, which may be useful to reduce the occurrence of accidents. This algorithm, which is to be deployed with the front sensors of the vehicle, is capable of alerting any occurrence of sudden slowing or static vehicles ahead, by sensing the rate of distance change. Furthermore, it also triggers an alert if the driver is breaching the safe distance from the vehicle ahead. This algorithm has been successfully implemented in Altera DE0 FPGA and its functionality was validated via hardware experimental tests.
Hướng dẫn sử dụng Testo 308
https://testostore.vn/san-pham/may-do-mat-do-khoi-testo-308/
https://testostore.vn/danh-muc/may-do-phat-xa/may-phan-tich-khi-thai/
Hướng dẫn sử dụng Testo 435
https://testostore.vn/san-pham/dong-ho-do-da-nang-testo-435-3/
https://testostore.vn/danh-muc/do-ap-suat/may-do-ap-suat-vi-sai/
Hướng dẫn sử dụng máy đo nhiệt độ bề mặt Testo 435-3Tenmars Việt Nam
Hướng dẫn sử dụng máy đo nhiệt độ bề mặt Testo 435-3
https://testostore.vn/san-pham/dong-ho-do-da-nang-testo-435-3/
https://testostore.vn/san-pham/may-do-da-nang-testo-435-4/
https://testostore.vn/danh-muc/do-nhiet-do-do-am/do-nhiet-do-be-mat/
White paper - Actionable Alarming - Wonderware-Schneider ElectricSuman Singh
A whitepaper on actionable alarm management by Rob Kambach, Product Manager, System Platform, Wonderware/Schneider Electric. Read the paper and learn how to manage your SCADA alarms better!
PLC Programming Example - Conveyor Reject (Shift Register)ACC Automation
More information can be obtained at our website.
http://accautomation.ca/plc-programming-example-shift-register-conveyor-reject/
We will apply the five steps to PLC Program development to our next programming example of a shift register - conveyor reject.
1.Define the task
2.Define the inputs and outputs
3.Develop a logical sequence of operation
4.Develop the PLC program
5.Test the program
Another example of programming PLC Shift Registers can be seen at on our product sorting application. This will use 3D factory IO to demonstrate sorting colour tags.
PLC Programming Example – Sorting Station (Shift Register)
http://accautomation.ca/plc-programming-example-sorting-station-shift-register
PLC Programming Example - Sorting Station Testing - Video
https://youtu.be/W0aibYb3DnE
PLC Programming Example - Sorting Station - Video
https://youtu.be/YMl2DPm_yaU
http://www.accautomation.ca
Discover the innovative and creative projects that highlight my journey throu...dylandmeas
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3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
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Memorandum Of Association Constitution of Company.pptseri bangash
www.seribangash.com
A Memorandum of Association (MOA) is a legal document that outlines the fundamental principles and objectives upon which a company operates. It serves as the company's charter or constitution and defines the scope of its activities. Here's a detailed note on the MOA:
Contents of Memorandum of Association:
Name Clause: This clause states the name of the company, which should end with words like "Limited" or "Ltd." for a public limited company and "Private Limited" or "Pvt. Ltd." for a private limited company.
https://seribangash.com/article-of-association-is-legal-doc-of-company/
Registered Office Clause: It specifies the location where the company's registered office is situated. This office is where all official communications and notices are sent.
Objective Clause: This clause delineates the main objectives for which the company is formed. It's important to define these objectives clearly, as the company cannot undertake activities beyond those mentioned in this clause.
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Liability Clause: It outlines the extent of liability of the company's members. In the case of companies limited by shares, the liability of members is limited to the amount unpaid on their shares. For companies limited by guarantee, members' liability is limited to the amount they undertake to contribute if the company is wound up.
https://seribangash.com/promotors-is-person-conceived-formation-company/
Capital Clause: This clause specifies the authorized capital of the company, i.e., the maximum amount of share capital the company is authorized to issue. It also mentions the division of this capital into shares and their respective nominal value.
Association Clause: It simply states that the subscribers wish to form a company and agree to become members of it, in accordance with the terms of the MOA.
Importance of Memorandum of Association:
Legal Requirement: The MOA is a legal requirement for the formation of a company. It must be filed with the Registrar of Companies during the incorporation process.
Constitutional Document: It serves as the company's constitutional document, defining its scope, powers, and limitations.
Protection of Members: It protects the interests of the company's members by clearly defining the objectives and limiting their liability.
External Communication: It provides clarity to external parties, such as investors, creditors, and regulatory authorities, regarding the company's objectives and powers.
https://seribangash.com/difference-public-and-private-company-law/
Binding Authority: The company and its members are bound by the provisions of the MOA. Any action taken beyond its scope may be considered ultra vires (beyond the powers) of the company and therefore void.
Amendment of MOA:
While the MOA lays down the company's fundamental principles, it is not entirely immutable. It can be amended, but only under specific circumstances and in compliance with legal procedures. Amendments typically require shareholder
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Remote sensing and monitoring are changing the mining industry for the better. These are providing innovative solutions to long-standing challenges. Those related to exploration, extraction, and overall environmental management by mining technology companies Odisha. These technologies make use of satellite imaging, aerial photography and sensors to collect data that might be inaccessible or from hazardous locations. With the use of this technology, mining operations are becoming increasingly efficient. Let us gain more insight into the key aspects associated with remote sensing and monitoring when it comes to mining.
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This insightful presentation is designed to equip entrepreneurs with the essential knowledge and tools needed to accurately value their businesses. Understanding business valuation is crucial for making informed decisions, whether you're seeking investment, planning to sell, or simply want to gauge your company's worth.
Cracking the Workplace Discipline Code Main.pptxWorkforce Group
Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
Although discipline is not a one-size-fits-all approach, it can help create a work environment that encourages personal growth and accountability rather than solely relying on punitive measures.
In this deck, you will learn the significance of workplace discipline for organisational success. You’ll also learn
• Four (4) workplace discipline methods you should consider
• The best and most practical approach to implementing workplace discipline.
• Three (3) key tips to maintain a disciplined workplace.
2. POKA-YOKE to avoid (yokeru) inadvertent errors (poka) http://www.campbell.berry.edu/faculty/jgrout/mistakeproofing667.ppt
3.
4. Everyday Examples New lawn mowers are required to have a safety bar on the handle that must be pulled back in order to start the engine. If you let go of the safety bar, the mower blade stops in 3 seconds or less. Fueling area of car has three error-proofing devices: 1. insert keeps leaded-fuel nozzle from being inserted 2. tether does not allow loss of gas cap 3. gas cap has ratchet to signal proper tightness and prevent overtightening. 3.5 inch diskettes cannot be inserted unless diskette is oriented correctly. This is as far as a disk can be inserted upside-down. The beveled corner of the diskette along with the fact that the diskette is not square, prohibit incorrect orientation. http://www.campbell.berry.edu/faculty/jgrout/mistakeproofing667.ppt
6. Devices Tend to be Inexpensive... Cost of Poka-Yoke Devices 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 $25 or less $100 to$250 $1000 or more Cost Probability Frequency of Occurrence Cumulative Probability $25 to $100 $250 to $1000 Evidence of the Effectiveness http://www.campbell.berry.edu/faculty/jgrout/mistakeproofing667.ppt
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9. What is Poke-yoke? A method that uses sensor or other devices for catching errors that may pass by operators or assemblers. 1. Control Approach - Shuts down the process when an error occurs. - Keeps the “suspect” part in place when an operation is incomplete. 2. Warning Approach - Signals the operator to stop the process and correct the problem.
10. Poka-yoke systems consist of three primary methods: 1. Contact 2. Counting 3. Motion-Sequence - Each method can be used in a control system or a warning system. - Each method uses a different process prevention approach for dealing with irregularities.
11. Contact Method A contact method functions by detecting whether a sensing device makes contact with a part or object within the process. Missing cylinder;piston fully extended alarm sounds Contact Method using limit switches identifies missing cylinder. An example of a physical contact method is limit switches that are pressed when cylinders are driven into a piston. The switches are connected to pistons that hold the part in place. In this example, a cylinder is missing and the part is not released to the next process. Cannot proceed to next step. Cylinder present http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
13. Energy Contact Devices Photoelectric switches can be used with objects that are translucent or transparent depending upon the need. Transmission method: two units, one to transmit light, the other to receive. Reflecting method:PE sensor responds to light reflected from object to detect presence. Light Transmitter Receiver Object If object breaks the transmission, the machine is signaled to shut down. http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
14. Contact Device An example of a contact device using a limit switch. In this case the switch makes contact with a metal barb sensing it’s presence. If no contact is made the process will shut down. http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
15. Counting Method Used when a fixed number of operations are required within a process, or when a product has a fixed number of parts that are attached to it. A sensor counts the number of times a part is used or a process is completed and releases the part only when the right count is reached. In the example to the right a limit switch is used to detect and count when the required amount of holes are drilled. The buzzer sounds alerting the operator that the appropriate amount of steps have been taken in the process. http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
16. Counting Method Another approach is to count the number of parts or components required to complete an operation in advance. If operators finds parts leftover using this method, they will know that something has been omitted from the process. “ I have an extra part. I must have omitted a step!” http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
17. Motion-Sequence Method The third poka-yoke method uses sensors to determine if a motion or a step in a process has occurred. If the step has not occurred or has occurred out of sequence, the the sensor signals a timer or other device to stop the machine and signal the operator. This method uses sensors and photo-electric devices connected to a timer. If movement does not occur when required, the switch signals to stop the process or warn the operator. http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
18. Motion-Sequence Method In order to help operators select the right parts for the right step in a process the “sequencing” aspect of the motion-step method is used. This is especially helpful when using multiple parts that are similar in size and shape. In this example, each step of the machine cycle is wired to an indicator board and a timer. If each cycle of the machine is not performed within the required “time” and “sequence”, the indicator light for that step will be turned on and the machine will stop. Indicator Board Machine http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
19. Types of Sensing Devices 1. Physical contact devices 2. Energy sensing devices 3. Warning Sensors http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
20. Physical Contact Sensors These devices work by physically touching something. This can be a machine part or an actual piece being manufactured. In most cases these devices send an electronic signal when they are touched. Depending on the process, this signal can shut down the operation or give an operator a warning signal. http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
21. Touch Switch Used to physically detect the presence or absence of an object or item-prevents missing parts. Used to physically detect the height of a part or dimension. http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
22. Energy Sensors These devices work by using energy to detect whether or not an defect has occurred. Fiber optic Photoelectric Vibration http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
23. Warning Sensors Warning sensors signal the operator that there is a problem. These sensors use colors, alarms, lights to get the workers attention ! These sensors may be used in conjunction with a contact or energy sensor to get the operators attention. Color Code Lights Lights connected to Micro switches & timers http://www.landp.com.au/special/presentation_demos/mproof_smpl_1.ppt
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Editor's Notes
(READ SLIDE TEXT) A caveat about this definition: We do not use errors and mistakes as synonyms. However, in this presentation we draw on the work of many people, and some authors will use the word mistake as a synonym with error. Where one of these is quoted, we have not changed their words. We do indicate their less precise use of the word mistake by italicizing it on the slide. Adapted from M. Hinckley, Quality by Design, 1996
PARAPHRASE SLIDE ask for more car examples.
Sensing devices are the actual mechanism used to make contact, count, or identify the motion sequence of a work piece. They are the third tier of a poka-yoke system ( tires: approaches-methods-sensing devices).
