Call BB or BP?

In recent years, it has disappeared, and now mobile phones are so cheap ~ and the relevant operators have closed down, and they can't live without the market.

Some rich people and celebrities use bp machines for fear of harassment. Also used in special occupations. For example, many firefighters still use bp machines. Some also use other radio stations, newspapers and other media to engage in activities with readers, but also use the services of bp operators to jointly engage in activities.

Basically no one uses it, and some of it is for special purposes, anti-harassment and commercial applications.

There is no Chinese display in the early stage, and there is Chinese in the later stage, alias "paging".

1983, Shanghai opened the first paging station in China, and BP machine entered China.

The instant communication of BP machine has brought people into an era without time and space distance, and it is everywhere all the time, which greatly speeds up people's life and work efficiency, but it also makes people have nowhere to hide. People love and hate it, but they can't live without it.

Evolutionary roadmap

Analog BP machine → digital BP machine, Chinese character BP machine → mobile phone, MSN and other instant messaging tools.

1983, Shanghai users only use analog signal BP machine. Users can only accept call signals, and they have to call the paging station to find the callback number. The digital paging station opened in Guangzhou the following year solved this problem. The early BP machines were all imported products, and the brands were Motorola and Panasonic. Later, Inspur's domestic enterprises cooperated with Motorola to develop a Chinese character BP machine, so that users can know the content of the call without looking for a phone all over the street.

With the price falling again and again, by the end of 1990s, BP machine had become a very popular product. However, as the first generation of instant messaging tools, BP machine is more like a transitional role. With the popularity of mobile phones, BP machines have gradually withdrawn from the market. However, now we can't live without instant messaging tools, and mobile phones, MSN or QQ have become the necessities of many people's lives.

Pioneer monument

Motorola, one of the earliest brand owners of BP machine, has maintained a leading position in the field of the most mainstream instant messaging tool-2G mobile phone with the help of brand recognition established by BP machine and analog mobile phone.

Race all beings.

China's first paging signal was sent from a bathroom in Shanghai Overseas Chinese Store. At first, there was only one paging station. At that time, it provided paging service for the upcoming Fifth National Games in Shanghai, with only over 30 users.

Spread Impressionism "Call me if you need anything!"

BP machine can only receive radio signals, but not send signals, so it is a one-way mobile communication tool.

Ordinary digital pagers are small in appearance, smaller than a pack of cigarettes, and can be conveniently put in your pocket or pinned to your waist. Once it receives the paging signal, it will make a few slight "B-, B-" sounds to remind people to pay attention. In order not to disturb others, you can also turn off the sound switch The pager just sends out a mechanical vibration, just like the slight vibration of the massager, which only the carrier can feel. After the pager receives the signal, some Arabic numerals and English characters will be displayed on the LCD screen, representing telephone numbers and short words respectively. It is inconvenient for China people to display English characters, so there is a Chinese character display BP machine. This kind of BP machine can not only display the telephone number, but also transmit simple information. Some professional stations can also release some professional information, such as the price of grain and the price of vegetable seeds on the day when the agricultural paging desk is released. In summer, people can also know the price of watermelon through BP machine, which has many functions and is very popular.

At present, there are all kinds of BP machines, there are more than a dozen. Some are like pocket diaries, small and exquisite; Some are like a card, very light; Some are like ballpoint pens, which can be inserted in coat pockets; Some people even make corsage and necklace to hang on their chests. Others are integrated with watches and held in their hands. At ordinary times and time, when someone calls, it becomes a BP machine.

The girl dialed the number of the paging station through wired telephone. After the call was connected, she told the operator the BP number she wanted to page, her name and phone number, and then hung up and waited. The paging station operator immediately inputs the above information into the computer, and the transmitter automatically transmits the call information into the air under the control of the computer.

You may ask, since the radio waves emitted by paging stations can cover a certain area, why can the BP machine in this area only receive the call for itself, but not the signal to page others?

It turns out that each BP machine has its own number, which is stored in the computer of the paging station. The message sent by the paging station has this number, and only the corresponding BP machine can be started, which has no influence on other BP machines. Just like a postman, delivering letters according to the user's house number can't be wrong.

When the girl's friend hears the sound of "B-, B-", she turns on the display switch, and the number requesting to call back appears on the screen, so her friend can find a phone nearby to talk to the girl.

The numbers of public paging stations in China are 126 and 127, and the numbers of some professional paging stations are 7 digits or 6 digits. 126 and 127 are public stations, but they are used in different ways. 126 is answered by the operator, which is a manual paging station, and 127 is controlled by a computer, which is called an automatic paging station. The girl above uses a manual paging station. If you want to page through 127, you will only hear a pre-recorded prompt, such as "Please continue dialing". Then you have to send the number of the call through the buttons of your mobile phone. After receiving these signals, the computer of the paging station checks these signals and sends out a page on the wireless channel.

Some paging devices are also connected to the telephone at home. If no one answers the phone after a certain period of time, the call will be automatically transferred to the paging station.

Pagers are small in size, light in weight, cheap in price and easy to use, which makes them widely used in various industries.

Doctors can carry a BP machine with them when they make house calls. If there is an emergency patient in the operating room, the doctor needs to make a follow-up visit immediately, and can call with a BP machine. Such as assistants, nurses, anesthesiologists, etc. When necessary, the special paging function of the paging station-group paging, will "give an order" to call all the paged people without individual notice.

Commanders and engineers in construction sites often work on the spot. With a pager, wherever you go, if there is something urgent, you can find it immediately through the paging station.

Pagers can also perform roaming service, similar to roaming in mobile phones. When you are on a business trip, don't worry that others can't find you, because people can call you through the local paging station.

In a pasture in southwestern Japan, even cows were lucky enough to take a BP machine. In order to manage the cattle conveniently, the rancher came up with a strange way to use the pager. When grazing, each cow hangs a BP machine around its neck. As soon as the BP machine calls, the cows will "consciously" return to the cowshed from the pasture.