我还有一些能帮我翻译一下么我实在是太急了谢谢了

2025-02-25 21:04:47

推荐回答（1个）

回答1：

Option 1, based on singlechip, control other modules in order to add counting, reduce vehicle counting and status display. The microcontroller timer, automatic door open time to time. Various other interruption, and other functions, detection keyboard input status and sensor state. Sensors can use ultrasonic sensors, infrared sensor, pressure sensor.

Scheme ii, the whole system consists of infrared transmitters and receivers, multiplexing change device, addition and subtraction counter and display counter parts. Emitter part includes two infrared transmitters device (IR1 TX1 and IR2 TX2).
Plan a soft combination, microcontroller do core with simple buffer circuit, can realize the design requirement, advantages, easy to adjust, flexible and can realize the function is very rich. Scheme ii circuit is relatively complex, use the chip is overmuch, circuit wiring heay-duty, and debugging is too difficult. Therefore I choose plan one. Plan one, SCM chips have many choices, 89S52 microcontroller is easy to buy, cheap price, so choose 89S52. Sensors selection infrared sensors, because the sensor launch part adopts two 555 chip realization, relatively simple.

Hardware circuit is an important part of a system, in this design is mainly by AT89S52 devices for core controller, plus some control circuit to achieve the basic function of the system. Below are introduced various control circuit of the function and working principle.

AT89S52 SCM each functional unit operation is clock control signal for the datum and methodically row at work. Therefore, the clock frequency directly affect the speed of MCU, clocking circuit and the quality of directly influence the stability of single-chip microcomputer system. Common always circuit design are two ways, one is internal clock way, another way to external clock way.

In many for LED display, a simplified the hardware circuit, usually will all the bits of bit code line corresponding segment connected in parallel by a 8 bits of I/O mouth control, forming bit code line multiplexing and your total cathode respectively by the corresponding I/O lines, forming your time-sharing control. Choose tong The display mode than static display mode, save the I/O port.

The system USES is TSOP1738, it for 38KHz pulse signal of modulation 1KHz effectively. Therefore, this module to launch the waveform of infrared ray. Waveform generation can adopt two 555 chip, waveform launch can use infrared emission diode. This kind of sensor this part of the function is to feel the movement of objects and transmit to 89S52 chip. Sensor parts can be further divided into transmitters and receivers two parts. Launch module launch signal mainly depends on the receiving modules by use of the sensor.

Manostat SCM system is an important part of the system, it is not only for providing multi-channel voltage source, still can directly affect the system the technical indexes and anti-jamming performance. A manostat output voltage and maximum output current depends on the selected three end stabilizer. Three end stabilizer which is a kind of standardization and serialization of general linear manostat integrated circuit, with its small size, low cost, good performance, high reliability, use simple work convenient wait for a characteristic, become at present manostat most widely used in a monolithic integrated stabilizer pieces. In this design using + 5V voltage so choose LM7805 stabilizer. LM7805 has very good voltage output accuracy and stability and have internal over-current, thermal overload and output transistor safety protection function, circuit safe and reliable in operation. 220V exchange mains supplyicoil through converting ac low voltage transformer, and then after bridge rectifier circuit D1 ~ D4 and filter capacitance C1 rectifier and filter, in three of the fixed LM7805 stabilizer Vin &gnd form a were not very stable at both ends of the voltage dc voltage (often with utility by fluctuation of voltage or load change wait for a reason and produce change). The dc voltage after LM7805 on voltage stability and C3 filtering was manostat an output terminal of the produced high precision, stability good dc output voltage. This manostat can serve as a TTL circuit or MCU circuitry of power sources.

Main program software design is the overall frame, therefore the Lord program flowchart design decided to programming is good or bad, main program of the main function is scanning the keyboard, make logic, control the various interrupt, scanning the keyboard, data to send display module. The flow chart shown in figure 5-1 shows.

In judging vehicles that have access block: this system USES two sensors, darling a used to detect out of the car, a used to detect in the car, Two, and is used to distinguish traffic or people. When two sensors simultaneously detect the car that pass is vehicles. When a sensors to monitor vehicle, open the door. When two sensors detection arrives, through logical judgment, the remaining parking number increase or decrease.

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我还有一些 能帮我翻译一下么 我实在是太急了 谢谢了

我还有一些能帮我翻译一下么我实在是太急了谢谢了