CN106627860A - Antitheft alarm system and method of battery of electric bicycle - Google Patents

Abstract

The invention discloses an antitheft alarm system and method of a battery of an electric bicycle. The system comprises a battery alarm arranged in the battery, a bicycle-mounted controller arranged on a bicycle body, and a mobile phone terminal. The battery alarm gives out an alarm by detecting carrier signals which are superposed on a power line through the bicycle-mounted controller, the battery alarm keeps giving the alarm once a thief takes out the battery or cuts off the power line, and the antitheft effect is achieved. The antitheft system adopts the carrier communication and microprocessor technologies, is good in antitheft performance, high in reliability and easy to implement, and can be widely applied to the field of safety alarm of electric bicycles.

Description

Electric bicycle battery anti-theft alarm system and alarm method

technical field

The invention relates to the field of electric bicycle safety and anti-theft, in particular to an electric bicycle battery anti-theft alarm system and an alarm method.

Background technique

With the increase in the number of electric bicycles, the theft incidents are also becoming more and more serious. Frequent theft activities have brought unrest to society and caused huge economic losses. In reality, what is most likely to be stolen is the battery of an electric bicycle. Once the plug connected to the battery is unplugged, the anti-theft device installed on the electric vehicle body usually has no anti-theft effect because there is no power supply.

The currently disclosed electric bicycle battery anti-theft technologies include: mechanical type, (such as patent application number 201520499273.5, patent application number 201320512274.X, patent application number 201220295261.7, etc.), the anti-theft effect is enhanced by designing a suitable structure; detection, (such as patent application number 201520299828.1, etc.), it is easy to generate false alarms, and the alarm will also be triggered when the owner removes the battery by himself; the alarm technology using GPS positioning and GSM communication module, (such as patent application number 201420511604.8, patent Application No. 201020147648.9, etc.), suitable for tracking and positioning after the battery is stolen, and the cost is high.

Contents of the invention

The object of the present invention is to provide a battery anti-theft alarm system and alarm method for electric bicycles with strong practicability and good anti-theft effect.

The technical solution to realize the object of the present invention is: an electric bicycle battery anti-theft alarm system, including a battery alarm, a vehicle-mounted controller and a mobile phone terminal; The first processor module and the alarm module are connected sequentially to realize the carrier signal receiving and alarm functions; The transmitting module is connected with the second processor module to realize carrier signal transmission, data communication and vehicle control functions; the mobile phone terminal is used to send authorization commands to the vehicle controller.

An alarm method based on an electric bicycle battery anti-theft alarm system. The on-board controller regularly sends signals to the carrier communication receiving module of the battery alarm through the carrier communication transmitting module. If disconnected, an alarm is issued; the mobile terminal sends an authorization command to the on-board controller, and the carrier communication transmitting module transmits an authorization signal, and the carrier communication receiving module receives the signal, and the first processor module judges that the battery is taken out normally, and the alarm is not triggered .

Compared with the prior art, the present invention has significant advantages: (1) The battery alarm has good anti-theft effect by detecting the carrier signal on the battery power line. Once the battery is removed without authorization, the disconnection of the power line will trigger an alarm; the owner can take out the battery by giving an authorization command without triggering an alarm; (2) The battery alarm is built in the battery and can continuously send out an alarm The sound makes the thieves give up so as to increase the safety; and the alarm signal is controlled by the microprocessor, which will not trigger false alarms.

Description of drawings

Accompanying drawing is the overall structural block diagram of the present invention.

detailed description

The invention relates to an anti-theft alarm system for an electric bicycle battery, comprising a battery alarm, a vehicle-mounted controller and a mobile phone terminal.

The battery alarm is built into the battery to realize carrier signal reception and alarm functions. The battery alarm is mainly composed of a carrier communication receiving module, a processor module 1, and an alarm module. The carrier communication receiving module implements carrier signal detection on the battery power line. The processor module 1 performs alarm processing according to the detected carrier signal. The alarm module receives the alarm control signal from the processor module 1 and gives an alarm prompt.

The on-board controller is installed inside the electric bicycle to realize carrier signal transmission, data communication and vehicle control functions. The on-board controller is mainly composed of carrier communication transmitter module, processor module 2, communication module and motor control module. The carrier signal transmitting module realizes the modulation and transmission of the carrier signal on the power line. The processor module 2 controls the carrier communication transmitting module to generate a specific carrier signal according to an external command. The communication module is used for encrypted communication with the mobile phone terminal. The external command refers to the "battery removal" command, which can be set through a special mobile phone application software or the like. The motor control module realizes the vehicle control of the electric bicycle.

The present invention will be described in further detail below in conjunction with the accompanying drawings.

With reference to Fig. 1, the present invention presents an electric bicycle battery anti-theft alarm system, whose system overall block diagram includes a battery alarm and a vehicle-mounted controller.

The battery voltage of an electric bicycle is usually 12V-48V, which supplies power to each module of the battery alarm and the vehicle controller through a step-down circuit.

The battery alarm is built in the battery, and the hardware is mainly composed of a carrier communication receiving module, a processor module 1, an alarm module and the like. The carrier communication receiving module implements carrier signal detection on the battery power line. The processor module 1 performs alarm processing according to the detected carrier signal. Once the power line is disconnected, the carrier communication receiving module cannot detect the carrier signal. In the case of unauthorized removal, the processor module 1 judges that it is illegally removed, and the control alarm module gives an alarm prompt. The alarm module can be realized by a buzzer.

The vehicle-mounted controller is installed inside the electric bicycle, and its hardware is mainly composed of a carrier communication transmitting module, a processor module 2, a communication module and a motor control module. The carrier communication transmitting module realizes the modulation and transmission of the carrier signal on the power line. The processor module 2 controls the carrier communication transmitting module to generate a specific carrier signal according to an external command. The communication module is used to communicate with the mobile phone terminal, and a wireless communication interface such as Bluetooth can be selected. The external command refers to the "battery removal" command, and the car owner can send the command through the special mobile phone anti-theft application software. After the processor module 2 receives the "battery removal" command through the communication module, it controls the carrier communication transmitting module to generate a specific carrier signal. After the carrier communication receiving module of the battery alarm detects the signal, the processor module 1 judges that the battery is removed. Authorized, do not trigger an alarm. The motor control module realizes the vehicle control of the electric bicycle, adopts the existing mature scheme, and adopts the corresponding circuit according to the different parameters of the motor model.

The mobile phone terminal refers to the smart phone of the car owner, and special mobile phone application software is installed. When in use, the mobile phone terminal needs to turn on the bluetooth function, connect with the vehicle controller through bluetooth, and the transmission of command data is realized by encryption.

The present invention will be further described in detail below in conjunction with the examples.

Combined with Figure 1, the composition and working principle of the system are explained.

The battery alarm is built in the battery of the electric bicycle, and the processor module 1 can adopt a 51 series single-chip microcomputer or an LPC series microprocessor of NXP Company. The alarm module can be realized by buzzer or voice chip. The carrier communication receiving module can be implemented by PBWS series communication chips of Beijing Baisi Chuang Technology Co., Ltd., such as PWBS311.

The power module of the on-board controller is connected to the battery, and supplies power to each functional module of the on-board controller through the step-down chip and circuit. The carrier communication sending module can use the same series of communication chips as the receiving module. Processor module 2 can use Freescale's i.MX28x series microprocessors or NXP's LPC series microprocessors, or can use the A287 series or A6G2C series core boards of Guangzhou Zhiyuan Electronics Co., Ltd., which integrates microprocessors processor and bluetooth module. The motor control module adopts the existing mature scheme, and the corresponding circuit is adopted according to the different parameters of the motor model.

The mobile terminal refers to the mobile phone of the car owner, which must be a smart phone based on the Android or iOS operating system. The special application software for mobile phone refers to the special anti-theft software developed based on the Android or iOS operating system, which needs to be installed in the mobile phone of the owner. When using this software, you need to turn on the Bluetooth function of the mobile phone.

After the installation and connection of the electric bicycle battery is completed, the battery alarm and on-board controller will enter the anti-theft mode by default. The carrier communication sending module of the on-board controller sends a specific carrier signal, and the carrier communication receiving module of the battery alarm detects the signal. Once the signal is not detected, it is considered that the battery has been removed illegally. The alarm sounded, prompting the thieves to give up. In normal use, when the car owner needs to remove the battery, first establish a connection with the vehicle controller through the mobile terminal via Bluetooth, and send encrypted command data, the vehicle controller sends a specific carrier signal to the battery alarm, and the battery alarm detects the signal , does not trigger an alarm.

It can be seen from the above that the electric bicycle battery anti-theft device and method of the present invention can effectively realize the electric vehicle battery anti-theft, with good anti-theft effect and high reliability.

Claims (2)

1. An electric bicycle battery anti-theft alarm system is characterized in that: it comprises a battery alarm, a vehicle-mounted controller and a mobile phone terminal; the battery alarm is built in the battery and is directly connected to the power cord, and is composed of a carrier communication receiving module and a first processor The module (1) and the alarm module are connected sequentially to realize the carrier signal receiving and alarm functions; the on-board controller is placed in the vehicle body and consists of a carrier communication transmitter module, a second processor module (2), a communication module and a motor control module. The carrier communication transmitting module is connected with the second processor module (2) to realize carrier signal transmission, data communication and vehicle control functions; the mobile phone terminal is used to send authorization commands to the vehicle controller. 2. An alarm method based on an electric bicycle battery anti-theft alarm system, characterized in that: the on-board controller regularly sends signals to the carrier communication receiving module of the battery alarm through the carrier communication transmitting module, and if the first processor module (1) times out If the signal is not received, it is considered that the power line is disconnected, and an alarm is issued; the mobile phone terminal sends an authorization command to the vehicle controller, and the carrier communication transmitting module transmits the authorization signal again, and the carrier communication receiving module receives the signal, and the first processor module (1 ) to determine that it is normal to take out the battery, then the alarm will not be triggered.