The core functions of GPS products are satellite positioning, but their core functions are placed in different fields, creating different products. Therefore, the essence of GPS is the same, but it is placed in different application fields. The service trend in the future is as follows.

　　Child protection

　　Our parents sometimes want to know whether their children go to school, whether they go to school, whether they go home after school, and where they go if they don't. The child went out to play and was very worried. He wanted to know where he was. This series of problems can be located using GPS, as long as the child carries GPS, but the problem is how to send the data measured by GPS to our parents. Parents' mobile phones are based on GSM and GPRS communication. Both GSM and GPRS are mobile phone communication networks, and this technology has been very mature. The network signal of mobile phone communication covers the whole world. In China, China's mobile signal covers the whole country. If a module that can communicate with GSM and GPRS is embedded in GPS, as long as the GPS is positioned, the positioning information can be immediately transmitted to the target mobile phone through the mobile phone communication network. The most important thing here is the GPS satellite search function, because the success of positioning depends on the GPS satellite search ability.

　　So we can combine GPS with mobile communication network, and send the data measured by GPS to the parents' mobile phones through mobile communication network. In this way, children care products can be produced at a low cost.

　　Elderly care

　　Nowadays, many families have children working outside, or are too busy to take care of the elderly, so they have to leave two elderly people at home. The elderly may not know what they usually do, where they are, or what difficulties they have. The elderly are generally weak, and it is easy to have a headache. If there is a problem, the children do not know. The above situations make the elderly feel sad and lonely. Although the elderly can sympathize with the young people who have to fight outside for life and career, the inner loneliness cannot be eliminated. As a child, you should also feel guilty. The elderly who have worked hard all their lives should not enjoy the happiness of their family. Although there are mobile phones that can communicate at any time, we still can't fully understand how the elderly live in ordinary times. If the elderly are equipped with a hand-held GPS, they can know whether they are walking or not. If the elderly stay in a place for a long time, they can be forced to listen and shout through GPS. You can also talk with the elderly at any time, so that you can take care of the elderly to a certain extent and make them feel not lonely. A distress function can also be installed on the GPS. When the elderly encounter difficulties, they can ask for help from their children or other caregivers or social relief agencies. In this way, the elderly can enjoy their retirement. Fulfill the obligations of children.

　　Trolley monitoring

　　We spent hundreds of thousands, hundreds of thousands to sell a car, which is a lot of wealth. Sometimes we want to know about the car, such as whether someone is stealing your car. With the above functions, real-time monitoring of the trolley can be realized.

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