From the perspective of the Internet of Things, which one is better than Mobike or ofo? Detailed analysis of Mobike and ofo technology

According to the latest announcement issued by the "Xiaoming Bicycle Bankruptcy Information Public Account" on July 24, the Guangzhou Intermediate People's Court made a ruling to accept Zhang Lu's bankruptcy liquidation of Guangzhou Yueqi Information Technology Co., Ltd. (the operator of Xiaoming Bicycle) Application. Under the pressure of the dual forces of Mobike and ofo, coupled with its own poor management, Xiaoming Bicycle eventually withdrew from the market, and a series of problems that came with it all need to be resolved.

This settlement is the first bankruptcy case in the history of shared bicycles, and it has also caused a new round of thinking in the industry on the shared bicycle market. Mobike and ofo, as the two bosses of shared bicycles, faced the collapse of one shared bicycle company. Why? Can it still be affected? But in fact, the market for shared bicycles is very unstable. Shared bicycles still face many risks. Who will become the final king of Mobike and ofo? To break through the final barrier, technological innovation is the most important part.

Shared bicycle seems to be a simple bicycle, and its technical content should not be underestimated. As one of China’s new four great inventions, it is a typical "Internet of Things + Internet" application. The interconnected people form a complete service chain.

Cloud application:

1. Cloud computing platform

All data collection and storage of shared bicycles must be based on a cloud computing basic platform, and it must meet the huge data connection requirements.

2. Bicycle and user data

The cloud platform must collect and store bicycle and user data, and manage these data. The data includes communication connection status, car lock status, and basic user information, consumption records, cycling routes, and location information. In this way, users can accurately and timely know their own consumption situation, and know the storage status of shared bicycles around them in time, and the administrator can also know the location and usage of the bicycles in the first time.

3. Platform services

Platform service is a kind of cloud computing service that does not need to be downloaded and installed. It is between software as a service and infrastructure as a service. When the cloud needs massive data capacity, platform services (PaaS) will be built first under the application. ), which can allocate resources reasonably and dynamically to maintain the stability of the system.

4. Integrated application

Today’s shared bicycles require functions such as GPS positioning, code scanning to unlock, code scanning to pay, lock and return, and deduction settlement, so these functional requirements must be added to cloud data processing to form a complete set of rental service processes. .

Bicycle intelligent control system:

The most typical IoT application for shared bicycles is the smart lock application, and its application mode is a small IoT system. The main modules include:

1. The main controller: completes the data synchronization of the management center, and is responsible for overall communication, vehicle lock control and status information collection.

2. Mobile communication chip: It is equivalent to the SIM card in the mobile phone, which is mainly responsible for communicating with the cloud background. When you scan the code with the mobile phone, the mobile phone will send the car number to the server, and then send the unlock command to the car and unlock it.

3. Bluetooth communication module: connect the user's mobile phone to unlock the Bluetooth, especially when the network signal is poor, you don't have to worry about disconnection or slow network speed and the lock can't be unlocked.

4. GPS positioning module: Provide navigation function.

5. GPRS module: Provide data communication function.

6. Buzzer: Once the bicycle is abnormally moved when it is not unlocked, it will trigger the alarm system, and then it will be sent to the administrator's computer through the system background and automatically located. This is also an important measure to prevent the loss of the bicycle.

7. Bluetooth module: This is the module that needs to be used when using Bluetooth to unlock the bicycle.

8. Power module: It is to provide power for each module.

The above is the general working system of shared bicycles. At present, the working conditions of Mobike and ofo are similar, that is, Mobike has an additional real-time positioning function than ofo. This is why the body of Mobike is heavier, because Real-time communication requires more power consumption, so Mobike adopts the principle of mechanical power generation to convert kinetic energy into electrical energy.

After Xiaoming and other bicycles went bankrupt, what challenges will Mobike and ofo face, do they remain in the market, or will they be eliminated soon? Let's analyze the two again:

Ofo's smart lock:

Speaking of ofo's smart lock, it has a relatively long history of development, because there are more replacements. From the first generation of mechanical locks, the password of each bicycle is fixed. Once it is remembered by the user, it can be used forever. , And news about elementary school students unlocking the lock with their bare hands is often reported on the Internet. These are the shortcomings of simple mechanical locks. Then improved smart locks or Bluetooth unlocking, etc., have greatly solved the problem of the first generation of mechanical locks, among which smart locks are actually smart locks with the nature of the Internet of Things.

GPS technology of Mobike:

Positioning technology is also the most basic technology of the Internet of Things, which in turn will be applied to technologies such as wifi, ZigBee, Bluetooth, geomagnetism, and RFID. Mobike provides the function of recording the user's riding trajectory. The higher the accuracy of the trajectory, the higher the positioning technology. At present, Mobike's positioning function is relatively complete. Not only can you find the surrounding vehicles, you can also see the number and distance of the surrounding bicycles, so as to find the right bicycle for you according to the navigation.

Regarding smart unlocking, both currently mainly promote Bluetooth unlocking solutions because the Bluetooth module is independent and has ultra-low power consumption characteristics.

Regarding positioning, the positioning function and accuracy of Mobike has always been better than ofo, but ofo has slowly caught up with Mobike.

Shared bicycles have indeed solved the problem of many citizens in the "last mile". Of course, this is also the reason why it can still exist in the market. It is convenient, cheap, green and environmentally friendly. However, there are many disadvantages of shared bicycles. For example, all the current shared bicycle platforms cannot restrict users from destroying or illegally occupying bicycles. We often find vehicles based on maps. Finally, we find bad bicycles, or they are private. Possession means that the QR code has been destroyed, or even a broken car body. This situation abounds. The trouble bicycle has no eye-catching signs, which will consume the user's time. When the first user finds the fault and sends a message to the background, the background should send an instruction to the bicycle, and then there will be a reminder such as the indicator light turns on, so that the next one After the user finds the bicycle, he understands that the bicycle is faulty, instead of waiting for the user to unlock or ride the bicycle before discovering the fault, which can greatly save the user's time.

In addition to these, the intensity of bicycle placement is still not enough. Users often find bicycles by luck. Therefore, companies should think about how to optimize the placement density without excessive capital investment. There are also loopholes in the procedures on some platforms. Many users have complained online that the deposit is too difficult to refund. The repayment speed should be increased and there should be no non-refundable situation.

Technical requirements require enterprises to innovate and break through. The task is very arduous, but this is an unavoidable problem. Who will become a "unicorn" for Mobike or ofo, the most important thing is technology, because this is an Internet of Things. In this era, the times are advancing. As a small "Internet of Things + Internet" application, shared bicycles need technology to make up for most of the existing loopholes.

We have been talking about smart, shared bicycles as a tool for green travel and environmental protection. In this earth plagued by environmental pollution, people are encouraging green travel. Then, by incorporating smart value-added elements into shared bicycles, the user experience can be improved, and this is also for the enterprise. Get greater value. For example, to add a charging function to an existing shared bicycle, you can choose two forms, one is charging charging, and the other is mechanical charging, which is to convert the kinetic energy generated by your own riding into electrical energy. Perhaps it can also be combined with health to record the calories consumed by the user on the APP, and get corresponding rewards when it reaches a certain value. Or you can add some interesting links, such as sending a sentence or recommending a song to the next user, which are all directions to improve the user experience.

Of course, all these technological improvements not only rely on enterprises, but as users, they should improve their quality and use cars in a civilized manner. The bike-sharing market seems to be saturated, but in fact it has just emerged, and the challenges behind it are still very arduous. Mobike fights ofo, it is difficult to predict who will win.

USB 3.1 Interfaces

Emphasis: Because of the market chaos and the cheating of bad dealers, most people simply don't understand USB 3.0 and USB 3.1. USB 3.1 Gen1 is USB 3.0. And USB 3.1 Gen2 is the real USB 3.1. The maximum transmission bandwidth of USB 2.0 is 480 Mbps (i.e. 60MB/s), USB 3.0 (i.e. USB 3.1 Gen1) is 5.0 Gbps (500MB/s), and USB 3.1 Gen 2 is 10.0 Gbps (although the nominal interface theoretical rate of USB 3.1 is 10Gbps), but it also retains some bandwidth to support other functions, so it has a good performance. The actual effective bandwidth is about 7.2 Gbps. USB 2.0 is a four-pin interface, and USB 3.0 and USB 3.1 are nine-pin interfaces.
USB 3.1 is the latest USB specification, which was initiated by big companies such as Intel. Compared with the existing USB technology, the new USB technology uses a more efficient data encoding system and provides more than twice the effective data throughput (USB IF Association). It is fully downward compatible with existing USB connectors and cables.
USB 3.1 is compatible with existing USB 3.0 software stacks and devices
USB3.1 LOGO
USB3.1 LOGO
Protocol, 5Gbps hubs and devices, USB 2.0 products.
Intel, which owns Thunderbolt technology, also welcomes the formation of the USB 3.1 standard. USB 3.1 contains most of the features of USB 3.0 [2]. USB 3.1, as the next generation of USB transmission specifications, is commonly referred to as "SuperSpeed+", which will replace USB 3.0 in the future. [3]

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