With the popularity of various means of transportation, bicycles have gradually faded out of our lives, but the emergence of shared bicycles has revitalized the traditional bicycle industry. Smart lock is the core component of shared bicycles. As a necessary component, it can not only locate theft prevention, but also be an important source of big data. It is an Internet of Things application technology and a typical "Internet of Things + Internet" application. Communication perception technologies such as perception, recognition technology, and pervasive computing are used to exchange and communicate information between users and vehicles.
1. Introduction of shared bicycle smart lock
The biggest difference between shared bicycles and ordinary bicycles - the smart car lock developed by the Internet of Things The communication method of the shared bicycle smart lock is: connect the mobile phone through Bluetooth, rely on the APP on the connected mobile phone for GPS positioning and billing, and communicate with the server. communication.
The advantage is that because only Bluetooth connection is required, the overall power consumption of the car lock is very low, almost no charging is required, and the maintenance cost is relatively low, and it can also be unlocked and locked for billing in places with poor signal. 2. Highlights of shared bicycle smart lock solutions The shared bicycle smart lock solution has lower power consumption, better coverage, and lower latency. First, the coverage has no dead ends, which can ensure that the user can unlock the lock anywhere (underground parking lot) normally; secondly, the low latency can ensure a good user experience, the smart lock takes about 2 seconds from locking to receiving the new password. The shared bicycle smart lock solution solves the problems of high power consumption and short battery life. According to the calculation of 10 unlocks per vehicle per day, the battery life can reach 2-3 years, which can support the life cycle of the entire bicycle; module The cost is low, and the bicycle does not need an additional charging device, which reduces the cost of the whole vehicle.
The platform enables intelligent and refined operation and maintenance of bicycles. Through the full life cycle management of the shared bicycle smart lock SIM card, the connection status of the bicycle can be effectively monitored to ensure efficient monitoring of bicycles, such as: unified activation of newly registered bicycles, suspension of faulty bicycle groups, and ending of lost bicycles; through SIM card business analysis, support Smart monitoring of bicycles. 3. The core technology of shared bicycle smart lock 1. Bluetooth chip In fact, every smart unlocked bicycle has a built-in Bluetooth chip.
This chip has the characteristics of ultra-low power consumption, and in terms of security, the introduction of the Bluetooth secure pairing method makes the combination of Bluetooth and locks more smooth and reasonable. The main functions of the bluetooth chip are: support positioning, the bluetooth IC can directly drive the motor, and support a variety of unlocking methods, such as: QR code scanning method/MAC address recognition, bicycle number input, bluetooth connection method unlocking, etc. In addition, this bluetooth chip Also supports receiving GSM, GPRS network, W-CDMA network and TD-SCDMA network data. So when you use a shared bicycle, the Bluetooth of your mobile phone is connected to the built-in Bluetooth chip of the bicycle. Scan the code with your mobile phone and send a signal to the built-in Bluetooth chip. This signal can drive the direct drive motor to unlock. At the same time, the Bluetooth chip can pass the shared mobile phone GPS , obtain the bicycle position information, and transmit the information to the cloud platform.
2. The smart lock is a 2G network standard with a SIM module A SIM card with an independent number is integrated into the smart lock, and it maintains communication capabilities with the cloud through 3G and 4G networks, and reports the vehicle location (GPS information) and the current status of the vehicle to the cloud in time. 4. Application function of shared bicycle smart lock Today's new functional applications such as Bluetooth unlocking, electronic fence, appointment, etc., the key and basic functions of smart locks have been gradually determined, and the differences between smart locks are not much. At present, smart locks are basically composed of several categories of modules such as control, communication, perception, execution, and power supply.
The shared bicycle application is actually completed through the information transfer between "bicycle-cloud-user mobile phone", the most critical of which is the process of unlocking the smart lock. At present, the latest "GPS positioning + Bluetooth" unlocking and car-returning mode is relatively common. 5. The working principle of the shared bicycle smart lock The main thing about shared bicycles is the lock, also known as the smart lock. Just download the APP, then register and pay the deposit, and you can use it. The positioning function will find the nearest bicycle for you, and then you only need to scan the code with one click. It is very convenient to ride.
Then the point is, the key to this smart lock is the chip, only this chip can play such a big role. 6. How to unlock the shared bicycle smart lock The current mainstream shared bicycle unlocking method generally uses GPRS+Bluetooth unlocking. The server only needs to connect the user's mobile phone with traffic, and then the mobile phone Bluetooth sends the unlocking command. At the same time, it solves the problems of slow unlocking time, instability, and power consumption.
The power consumption of unlocking is greatly reduced, it does not need to rely on the signal strength of the module in the lock, and the stability is greatly improved. .