语音电子密码锁的设计外文翻译资料(编辑修改稿)

语音电子密码锁的设计外文翻译资料(编辑修改稿)内容摘要：

4 4 as the control input of the keyboard, which can be rational use of hardware resources and programming flexibility. Recognition keyboard keys are pressed whether the method is: Let all out lines are low, check the traffic on whether there is a highlevel, if there is a statement that a key is pressed, if not, then no keys are pressed (Actual programming keys should be taken into account the impact of jitter, usually always use the software delay processing methods Consumers buffeting). Identify specific keys used scanning method: homebyzero level out and check the level of the carriageway of the changes, if a line from the low level into a high, this trip can be sure this column crosspoint Button is pressed. 4 FLASH expansion of external circuit SPCEO61A FLASH memory chip of only 32 K, large number of players in the voice of resources needs of expanding memory. The design Sunplus Technology, Inc., SPR4096 as a memory expansion, bined with SPCE061A broadcast voice. SPR4096 in use, the use of SPR4096 ResWriter to read and write operation, used to store the speaker39。 s personality parameters reference template. the lock and lift activation SCM SPCE061A plete identification and display, the drive to realize the implementation of the electromagic lock function, and to detect its drive current value, to receive alarm signals sent by sensors, such as sending data. SCM receive the type code, and stored in FLASH in the password, if the correct password, the drive for the implementation of the electromagic lock, if your password is not correct, allowing operators to reenter your password, can enter up to three If the three are not correct, the MCU through intelligent munication lines to monitor the police. SCM will unlock operation and each time the electromagic actuator drive current value as a status information sent to the smart monitor, will receive the report from the sensor interface information is also sent to the intelligent monitoring, as smart Analysis of the basis. In the transmitter, electronic locks through the pulse transformer T will modulation good boost after data signals sent out in the receiver, pulse transformer T will receive the data signal demodulator buck evacuation to reduce the carrier signal transmission In the process of wear and tear. In order to reduce munication and mutual interference between the power supply, chokes L, the choice of coupling capacitance C to prehensive considerations, shown in Figure 4, a carrier frequency f0400kHz, in order to ensure that most of the energy transmission signal to the receiver Duan, L for a H, ~ F. Current surveillance function is to prevent the destruction of munication lines and electromagic actuator, for some reason the flow of electromagic coil currents too large burning coil. Current Monitor by MAXIM pany39。 s current / voltage converter chip MAX471. The chip can be measured current I into pairs。