近期，北京地铁引入了一种新的乘车方式：使用手掌生物识别系统进行进站刷卡支付。顾客们只需要先进行签约，便可以轻松享受到该系统带来的便捷服务。这项技术使得所有人都能够轻松进出地铁站，而且特别适用于早高峰时段，减少客户的排队等候时间。顾客签约过程非常简单，只需要在自动售票机掌纹识别系统先识别掌纹，然后再通过手机小程序完成实名认证和手机绑定就可以了。
掌纹识别技术的优点
相比于面部识别技术和指纹支付等其他生物识别技术，掌纹支付具有独特的优势。
面容可以通过照片或虚拟模拟器进行复制，使得某些不法分子可以窃取信息并盗刷用户账户。特征点失效、受伤或整形会影响面部识别的准确性。掌纹支付技术不会受到这些因素的干扰，不展示不支付。因此，掌纹支付比其他的生物识别技术更加可靠和安全。
掌纹支付采用非接触式识别技术，只需在读卡机上悬空展示手掌即可完成支付操作，这大大提高了使用体验和卫生程度。可以减少病毒和细菌的传播。
掌纹支付技术也具有极高的便捷性。即使手机没电或忘记带手机，也可以轻松完成支付操作，大大方便了人们的出行。
美国那么发达为什么没有这些技术？
中国在科技领域的新发明让外国人羡慕不已，但是这些技术在美国几乎没有机会实施。
美国地铁基础设施非常老旧，使用美国地铁的人群主要是以低收入群体为主，他们中的很大一部分甚至还没有智能手机，无法使用这些高科技。而高收入人群，主要以自己开车为主，也无法使用这些功能。
美国人口密度小，大力发展汽车工业，财阀对于公共交通的投入不积极，美国的地铁如果很干净又安全，反而会影响美国汽车工业的业绩。
美国的犯罪率比较高，“零元购”已经是全球的笑柄了。在美国犯罪人群只要不留下生物识别信息，“零元购”这类轻微犯罪一般都不会被抓。但是，如果留下生物信息，则会麻烦不断。所以，这类生物识别技术在美国很难推广，很容易遭到民众的反对。
这项技术应当全国推广
掌纹支付技术还可以有更广泛的应用，比如：打击犯罪。
犯罪分子有可能可以通过购买他人的身份证，逃避检查。但是，掌纹是没有办法造假的，如果这个技术和追逃系统联网，可以有效地打击犯罪。
这项技术可以让公民的财产更加安全，让犯罪分子无所遁形，是符合我们中国国情的好技术。
英文版：Beijing subway adopts new technology of "palm scanning". Foreigners are envious, but the United States cannot achieve it.
Recently, Beijing subway has introduced a new way of boarding the train: using palm biometric system for entering and paying. Customers only need to sign up first to enjoy the convenient service provided by the system. This technology makes it easy for everyone to enter and exit the subway station, and is particularly suitable for the rush hour, reducing customers' waiting time in queues. The customer signing process is very simple, just use the palm recognition system at the automatic ticket vending machine first, then complete real-name authentication and mobile phone binding through the mobile app.
The advantages of palm print recognition technology.
Compared with other biometric technologies such as facial recognition and fingerprint payment, palm print payment has unique advantages.
Facial features can be copied through photos or virtual simulators, allowing criminals to steal information and defraud user accounts. Inaccuracies in facial recognition may be caused by feature point failure, injuries, or plastic surgery. Palm print payment technology is not affected by these factors, as the palm is not visible for payment unless it is specifically presented. Therefore, palm print payment is more reliable and secure than other biometric technologies.
Palm print payment uses non-contact recognition technology, which only requires hovering hands over the card reader to complete a payment, greatly improving the health and user experience. It can also reduce the transmission of viruses and bacteria.
Palm print payment technology is also extremely convenient. Even if the mobile phone runs out of battery or is forgotten, users can still easily complete the payment operation, greatly facilitating people's travel.
Why doesn't the United States have these technologies despite being so developed?
China's new inventions in the field of technology have made foreigners envious, but these technologies have little chance of being implemented in the United States.
The infrastructure of the US subway system is very old, and the majority of users are low-income groups, with a large part of them not even having smartphones and cannot use these advanced technologies. High-income groups mainly rely on driving their own cars and cannot use these functions.
The population density in the United States is low, and the development of the automobile industry has been vigorously promoted. Financial tycoons are not enthusiastic about investing in public transportation. If the US subway is clean and safe, it will actually affect the performance of the US automobile industry.
The crime rate in the United States is relatively high, and "zero-dollar purchases" have become a global joke. In the United States, as long as criminals do not leave biometric identification information, minor crimes like "zero-dollar purchases" are usually not caught. However, if biometric information is left behind, it can be troublesome. Therefore, these biometric technologies are difficult to promote in the United States and are often met with opposition from the public.
This technology should be promoted throughout China.
Palm print payment technology can have a broader application, such as fighting crime.
Criminals may be able to evade checks by buying other people's identity cards. However, palm prints cannot be counterfeited. If this technology is connected to the fugitive tracking system, it can effectively combat crime.
This technology can make citizens' property more secure and leave criminals with nowhere to hide. It is a good technology that fits our Chinese national conditions.