First of all, the management staff to recognize the pickers in the high frequency of sorting work, there must be human error. Do not put the problem simply to the sense of responsibility. If attributed to the sense of responsibility, the equivalent of giving up the solution to this problem. If the customer called to ask why the wrong, you can not be sad to say: that the new warehouse, irresponsible, always wrong, really sorry. Customers clearly do not accept this view, the customer that the company, not individuals. It is the duty of the company to take measures to resolve the uncertainty of individual behavior and give the customer a definite result. Of course, if someone is really chaotic every day, or to deal with. Otherwise it will increase the cost of error correction.

 

       1 Control shipping errors

 

       once shipped the wrong thing out of the door is difficult to deal with, and will directly affect the customer experience. Therefore, we start with this link began to grasp. In fact, do business all know: review is the only way to solve the problem. The best review is the scan-by-scan review, first review the personnel scan order bar code, WMS out of the order with all the goods details, displayed in the window. Then the operator scanned the bar code by item (note is one by one, not a scan and then enter the number), the system automatically deducted; If all the clear on the screen, delivery is complete. The WMS should sound in order to avoid scan- ning, scanning, and scanning errors.

 

       If the number of single product more, can provide the number of input functions, but this will increase the probability of error. How to balance efficiency and accuracy, the need for warehouse executives decision-making.

 

       2 how to ensure the accuracy of the review

 

       As noted above, a review can increase the accuracy of shipments to very high levels, such as 99.9%. But how to further improve it?

 

        If the Japanese, may choose to arrange for personal review "review." This further increase the accuracy rate. The Chinese people may choose to let him go wrong, wrong, so that customer service apology, send a small gift to smooth things. The final commercial effect is the same.

 

       For certain categories of goods, can be used to re-check the way the auxiliary check. Such as weighing the box and the theoretical weight of a larger deviation is prompted review personnel to re-examine.

 

       External problems are resolved, the rest of the errors are within the warehouse, are "internal contradictions", although the customer experience will not be affected, but will affect the efficiency of the warehouse. Also indirectly affect the accuracy of external.

 

       3 review the use of the results

 

       Reviewing a Problem Solving WMS catches very important business information when a shipping error is resolved. If so wasted, it is a pity. For example: according to plan Xiao Zhang should go to the X01 location to take three apples, but the review found that he took two apples a pear out. Then:

 

       1, X01 location of the system and the actual number of possible differences in the number of, if not resolved, later go X01 Apple who will make the same mistake.

 

       2, the system records a number of positions on the pear may be a problem, the problem may be caused by Zhang Zhang mess, it may be chaos before, for some reason, the pear to the X01 location. So WMS will automatically trigger a "differential count" action. Inventory staff to see the task through the RF, the first time to X01 and the original place to put the pears X02 inventory. The physical and system number of synchronization. To avoid error diffusion.

 

      3. How to reduce the picking errors

 

       Then we analyze why Zhang took the wrong:

 

       A, X01 place on the middle of Apple mixed with a few pears

 

       B, Xiao Zhang in the X01 location did not find enough Apple, and then took from the next location on the library that he is Apple's things; this behavior is very damaging, will cause the back to the X02 pear colleague chain reaction.

 

       Over time, the warehouse inventory on the whole mess.

 

       Problem a can introduce RF, when asked to scan location, to ensure that the correct location; scan the bar code to ensure that things are right. (This topic is not finished, I just simply RF, for example, will be further elaborated later). If it is Paper jobs can only be asked to take a serious and responsible, a closer look.

 

       Problem b also needs RF support, Xiao Zhang in the X01 location to get two apples, it tells the system here is not Apple, and he do not own to determine wher to find other Apple. RF will tell him to X08 positions continue to take Apple. So Zhang will not take their own random X02 pear. X02 inventory will not be chaos. When this happens, a good WMS will not waste this information, but will quickly launch a position for the X01 "differential inventory" to solve the problems found by Zhang.

 

       It is noteworthy that the system is not simply based on the results of the adjustment of X01 Zhang location of stock, but initiated inventory, it is because the system that Zhang's judgment is not necessarily correct, should also send someone to assess Xiao Zhang's To determine the correctness. This must be done by another person, because people will have a blind spot of thinking, when the small leak to see an apple in the corner, you let him look at five times, may have missed the apple.

 

       4, how to make selecion errors do not occur

 

       The above steps to solve the problem of Zhang take the wrong, but if Zhang went to a place wher the inventory is wrong, need to prompt the WMS several times to sort out the goods, then the efficiency is still very low.

 

        To solve this problem, which requires shelves, shift, inventory, replenishment, etc. all affect the stock to achieve full RF action. Thus ensuring WMS system data and in-kind can be exactly the same.

 

        The same position on the adoption of strategies to ensure that the same SKU as much as possible together, do not mix and match. This can be avoided to take up a small scan, not, and then for a re-scan, not the time wasted. If the warehouse location is not enough, you must mix and match, you can configure the strategy to make the appearance of the big difference SKU together, so that sorting staff easy to distinguish.

 

        If you have batch delivery requirements, it is best able to configure different batches do not mix. Because different batches of goods look exactly the same (if you do not paste the bar code, then simply can not be different). Rather let different SKU mix, and do not mix and match different batches.

 

       Recycling inventory inventory using idle time is also an effective management tool to improve inventory accuracy (we assume that even if using RF, there is still the possibility of inaccurate inventory). Cycle inventory strategy a lot, do not start here.

 

      5, the selecion of equipment selection

 

      Just to RF, for example, about a RF device can solve the problem of picking errors, but RF is not the only solution. There are two types of sorting: one is static sorting without feedback, such as paper picking, or a download task, which is done to fetch the results of the upload to the computer. The other is the dynamic selection system that can get the system real-time feedback, such as online mode RF, voice picking and so on. Can not be real-time feedback and interactive mode on the one hand when the exception occurs, you can not dynamically get WMS help, change the plan; on the other hand too much reliance on people's responsibility to ensure that after the completion of the computer to the correct entry. Should not be the first choice for modern warehousing enterprises. We are mainly on real-time online, dynamic interactive and feedback programs. To explore there are three: RF sorting, voice picking and electronic tag selection.

 

      These three programs are to meet the requirements of customers (or already eliminated), if you want to distinguish their subtle differences, will inevitably need to talk about some extreme cases, or can not distinguish. For customers who require general warehouse operations, you can ignore the contents of this section.

 

       RF sorting

 

       RF benefits are cheap, wide range of applications; scanning bar code to check and review the high accuracy. Disadvantage is accounted for the hands, the actual picking business people need to repeatedly pick up the RF, put down the RF, in the process of handling, it may bring errors. Another flaw is: need to know the word! This is also a disadvantage, but some warehouse workers do not literacy.

 

       Electronic label picking

 

       Electronic tag picking is the fastest way to pick, is the most fool. The principle is: selec the staff do not need to distinguish between goods, according to instructions directly to take. But its limitations are also obvious, first of all picking the number of SKU Road is limited. Certainly not suitable for SKU tens of thousands, and constantly changing electricity providers. Second, the electronic tag installation and maintenance work is the most troublesome in several programs. once the label shows a problem, such as 8 less into a 9-6, etc. will result in systematic selection errors (not caused by careless people, is caused by system failure, not accidental error, is 100% wrong); third : As the pick is not to see the goods, so the accuracy of shelves becomes very critical (otherwise it is 100% error rate), or RF need to support shelves. So he is not an independent program.

 

       This is why I put the electronic label pick on the final reason. (But in some scenarios, PTL may be the best solution)

 

       Voice picking

 

       The basic principles of voice selection and RF are the same. Advantage is to free up his hands, to avoid the pick up the RF, put RF action; can not read can also be used, the minimum requirements of the people. The disadvantage is more expensive. Users made the voice of the election, one is that some cases after the implementation of less than ideal; the other one said the day will be the dream is the sound.

 

       I think so, the successful implementation of the main success depends mainly on whether the method is correct, if the traditional RF hardware agents to implement the project, unsuccessful is a high probability event. If it is a professional WMS vendor with strong technical capabilities and consultancy capabilities, success is a high probability event. The same implementation of RF projects, the implementation of PTL project does not have a strong process design capabilities and technical capabilities, failure cases abound, not the voice of the peculiar, no case is not the problem.

 

       The second point is the day if the high-intensity Paper down one day, it is estimated that cervical problems, the eyes are picking a single menu. This problem requires the warehouse reasonable arrangements for rest time; and improve efficiency is able to squeeze out the rest time is a necessary condition.

 

       from the retail industry to collect money of the line rules, talk about the advantages of human choice of voice.

 

       We have no attention, when we buy things, no matter what the size of the restaurant, the money people will "sing to sing to pay." If there is any kind of job selecion than the more "repetitive, monotonous" error problem is more serious, is the retail money, money work. once a person to repeat a long time to do something, will be in a state of gradual numbness, thinking will go God. Will appear to receive the guests a 50, but not careful in accordance with the 100 yuan for change; or customers say I like to give you 100 yuan (when customers themselves are distracted), remember in the end is 100 or 50 Situation.

 

       In order to avoid this problem, the retail industry invented the mode of singing and singing. I'm looking for you. The advantage is 1, to remind the customer I received is 50, not 100. More important is to remind yourself to receive the 50. In the event of a dispute, said before would be more clear in my mind emerge; sing pay 32.80 is to remind myself to find 32.80, do not take God to take the wrong. By singing to pay, the amount of cold clear into the brain's instructions, so that the state of the brain from the numb, short, fast into the clear state.

 

       For example, WMS prompts to pick three. RF people read the instructions, generally do not get in accordance with the provisions of one, sweep one. It is likely to be three consecutive sweep, put down the gun, and then get it, the results take God took only two. Picking the voice to pick up three, because there is no gun, gun interference, tend to get more accurate; take the time he may also be distracted, took only two. At this point he answered the system: 3 (he Teng woke up, aware of their own to take less), or answer system: 2, the system prompts a less. This effect and the retail industry to sing the song to pay is the same.

 

       So in principle, the voice picking accuracy is higher than RF. But taking into account the final review link protection, this subtle difference is not so high. In turn, who is high efficiency, is the key point of the decision. If there is no review (electricity providers, many industries are not reviewed), the difference is still very obvious.

 

       6, and finally back to people

 

       The front said to tolerate errors in operating personnel, in accordance with the premise that people will certainly make mistakes in the design process. But people really are the most important. If someone really has been neglected, (if accidentally made a mistake not corrected in time, almost all people will become dereliction of duty) no matter how good the process is not working. Good WMS should be able to provide quality statistics and traceability functions, each single if the error occurs, can be traced back to the selection of personnel, review personnel or team, and can count the statements; managers based on data provided by the WMS reward and punishment system, People's problems can be a very good solution. Wrong, the main responsibility to fall on review who, every mistake should be punished. For pickers, errors within a certain rate are acceptable, rewarding employees who outperform the average error rate, and penalizing employees well below the average error rate.