Little knowledge that must be known: POS Foundation

POS Chinese means "sales point", the full name of the point of sale information management system, is a terminal reader with bar code, chip or OCR code technology, with cash or barter cashier function. The main task is to provide data services and management functions for commodity and media transactions, and to perform non-cash settlement.

POS is a multi-functional terminal. It can be installed in the credit card's unique merchants and the receiving network to connect with the computer to realize the automatic transfer of electronic funds. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer. Safe, fast and reliable to use. The basic business intelligence in large-scale transactions is difficult to obtain, and the introduction of POS system is mainly to solve the blind spot of information management in retail industry. An important part of the chain management information system.

The basic principle of the POS system is to first create the product data in the computer file, through the online structure of the computer cash register, the goods up to the bar code can be directly read through the optical reading device on the cash register device (or have a simple spell directly input code) Product information (unit price, department, discount...) can be displayed to speed up the cash register speed and correctness. The detailed sales information (sale price, department, time slot, customer level) of each product is automatically recorded and transmitted back to the computer by the online architecture. Through the calculation of the computer, various sales statistical analysis information can be generated as the basis for business management.

The POS machine reads the cardholder magnetic stripe (chip) information on the bank card through the card reader, and the POS operator inputs the transaction amount, and the cardholder inputs the personal identification information (ie, the password), and the POS passes the information through the UnionPay Center. , send the card issuing bank system, complete the online transaction, give the information of success or not, and print the corresponding ticket. The application of POS realizes online consumption of bank cards such as credit cards and debit cards, which ensures the security, speed and accuracy of transactions, avoids complicated labor such as manual blacklisting and pressing, and improves work efficiency.

1, fixed POS and mobile POS

Fixed POS, as the name suggests, is to have a network cable or telephone line to be able to brush; mobile POS, you can carry it with you, when you first started out, it was restricted to local use, and later developed into a national roaming. The other is basically the same as the other. The previous rate has 26 caps, 0.38/0.78/1.25, etc. After the fee change, the rate limit is no longer a problem - but the merchant category is still the basis for each line to judge whether the MCC is valid.

Merchants with business premises and business licenses can apply directly to the bank, and after depositing the deposit review certificate, the bank will install it. If you want to POS, you must find a third party to pay the company's POS. According to common sense, individuals also need to have business licenses and business premises to handle POS, but many companies are not so strict in data review in order to make money. The central bank will ban third-party payment platforms from accessing new merchants after a period of time, and now it will go further and eliminate any online sales channels. However, because of the existence of the Internet and the interests of third-party payment platforms, it is still difficult to completely ban personal POS machines in the short term.

Some large POS can be done in one machine and multiple households. In fact, it is the interface of multiple merchants in one POS, which can be selected in advance when swiping the card. Because it is poured into the hardware, the central bank is not easy to review, so this kind of POS is the heart of many luluji card friends.

2, network POS

This kind of POS has been a short-lived after a while, and few people have said it now. Its principle is to use the online shopping mall virtual consumption, generate a payment order link, pay by credit card online banking or through other fast payment methods, like Alipay, virtual card swiping money to a third-party platform, and then settled to my account. It is a bit of a way to brush your own card, because the bill is only displayed to the third-party platform, and can be received in real time, the rate is not very high; the disadvantage is that the credit card must open the online banking, otherwise the rate is high through the fast payment method, and the payment amount is limit. For the majority of cardholders, because there is no point in the online POS, the UnionPay and issuer settlement agreements are not used in the “transaction” process. After the card is swiped, the issuing bank and UnionPay are not distributed. Under this circumstance, the issuing bank must lend the credit card and funds to others for use, and it must bear the huge risk of overdraft. It cannot effectively monitor the whereabouts of the funds, so it will not be willing to raise the amount of customers, or even the customers. Take measures for high-risk customers.

3. Mobile POS

The mobile phone POS is usually composed of two parts, one is a payment program on the mobile phone, and the other is a card reader inserted in the mobile phone. The process is like this, enter the credit card amount in the mobile payment program, choose the type of payment (loans, utilities, rent, meals, etc.), now due to central bank risk control and technical reasons, many third-party payment agencies provide mobile phone POS Both use random jump merchants to avoid supervision), the way to arrive (seconds or cash withdrawals), then swipe the card on the card reader, sign on the phone to confirm the completion of the payment process.

At this time, the money will flow through the account of the third-party platform. If you choose the second to arrive, or the second time is selected by the registration, the platform will directly deduct the operation fee and the rate fee and then the remaining money will be played. Enter your designated bank card; if you choose to withdraw cash, and the next day, you may be exempt from operating fees. This operation fee is a sister's own, the name of the school does not know, generally others and you say that the rate is 0.65 + 2, it means that the two parts of the fee.

Mobile phone POS can also be done in one machine and multiple households. It is selected before the card is swiped. The principle is to retrieve relevant information through the server. Compared with the big POS mentioned above, this operation is as long as the central bank person gets a device and registers. The account can get evidence, so it's getting less and less. Most of them are random jumps. At present, the best thing to do is to jump to a local merchant according to GPS. There are still some that are jumping, but they will jump to the neighboring provinces and even the country. With such mobile POS, you must pay attention to give free time, because people can't "tune" in a short time, frequent card swiping is easy to be regarded as Risk users, resulting in derating, sealing and so on.

4.APP payment, two-dimensional code, no card POS

These channels have been on fire for a few months in the period of bank fee reform, and it seems that there are not many mentions. Its principle is to use the non-card transaction mechanism on the mobile phone, such as first entering the bank APP or payment platform to scan the QR code, pop-up Alipay or WeChat payment and other wallet applications, and can also jump code, claiming a lower rate. But there are companies that are not safe. The first is that the cost of starting a company is relatively low. Unlike those with various types of POS, they need to invest in hardware. When you come up, you can say that there is no card. If you invest small, it is not impossible to take a trip. Therefore, everyone should remember to carefully consider the considerations and confirm the qualifications of third parties. Responding to the "hand brush" to the public number can see the latest third-party payment qualification, and you can also go to the official website to view.

With the attention of relevant departments to this piece, the iteration of the card-sending method and the payment platform will become more and more fierce, and the last remaining must be the type that conforms to the specification. It is also quite interesting to participate in this process in person.