The invention discloses an intelligent parking monitoring system based on a block chain. The device comprises a signal sampling module and an amplitude-modulation comparison module, the signal sampling module samples node signals in the intelligent parking monitoring system by using a signal sampler J1 of which the model is DAM-3056AH; the amplitude modulation comparison module uses an operationalamplifier AR2, a triode Q1, a variable resistor RW1 and a variable resistor RW2 to form an amplitude modulation circuit to adjust a signal waveform. Meanwhile, a frequency stabilizing circuit consisting of an inductor L4, a capacitor C5 and an operational amplifier AR4 is used for adjusting the signal frequency; a silicon controlled rectifier Q3 and a triode Q2 are used to form a detection circuit to detect distortion signals; the operational amplifier AR3 compares the in-phase input end signal of the operational amplifier AR4 with the output signal of the detection circuit; and finally, an operational amplifier AR5 is used for further comparing output signals of an operational amplifier AR3 and an operational amplifier AR4, and the output signals are sent to the intelligent parking monitoring system terminal based on the block chain through a signal emitter E1 to serve as reference analysis signals of the intelligent parking monitoring system terminal based on the block chain.
本发明公开了一种基于区块链的智能停车监控系统,包括信号采样模块、调幅比较模块,所述信号采样模块运用型号为DAM‑3056AH的信号采样器J1对智能停车监控系统中节点信号采样,所述调幅比较模块运用运放器AR2、三极管Q1和可变电阻RW1、可变电阻RW2组成调幅电路调节信号波形,同时运用电感L4、电容C5和运放器AR4组成稳频电路调节信号频率,并且运用可控硅Q3和三极管Q2组成检波电路检测畸变信号,运放器AR3比较运放器AR4同相输入端信号和检波电路输出信号,最后运用运放器AR5进一步比较运放器AR3、运放器AR4输出信号,经信号发射器E1发送至基于区块链的智能停车监控系统终端内,为基于区块链的智能停车监控系统终端的参考分析信号。
Intelligent parking monitoring system based on block chain
一种基于区块链的智能停车监控系统
2020-08-07
Patent
Electronic Resource
Chinese