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Description: 485收发+DS18B20呼叫应答方式(ATMEL89C2051)
温度是工业生产中重要的物理参数之一，对其进行测量与控制是一项非常传统的工艺技术。采用数字温度传感器DS18B20和AT89C2051单片机进行温度数据的采集和存储，通过RS485总线传输。上位计算机对所测得的每个误差补偿量，依据误差回归模型的最小二乘法进行参数估计。做出线性误差补偿模型的数学方程，对常温下测量的数据进行了补偿处理，在-55℃到+125℃测量范围和测量精度0.2级下，实现传输距离达到500 m，并根据工程实践给出提高传输距离与测量精度的关键技术。-485 to send and receive+ DS18B20 call response mode (ATMEL89C2051)
Temperature is one of important physical parameters in industrial production, its measurement and control is a very traditional technique.Using digital temperature sensor DS18B20 and AT89C2051 single-chip temperature data collection and storage, through the RS485 bus transmission.Measured by computer for each error compensation amount, according to the error of the regression model of least squares method for parameter estimation.Make the mathematical equations of linear error compensation model, processing of the measured data of temperature compensation, in- 55 ℃ to+ 125 ℃ measurement range and measurement accuracy under 0.2, realize the transmission distance of 500 m, according to the engineering practice gives the key to improve the transmission distance and accuracy of measurement technology.
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Size: 48128 |
Author: weszn |
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Description: LC METER FOR hobbyists AND ELECTRONICS PRACTITIONERS. VISA TO RIDE A METER AND CAPACITORS INDUCTORS OF VARIOUS VALORES.MONTAGEM SIMPLE AND EASY.
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Size: 122880 |
Author: marcos |
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Description: 是用51单片机AT89C2051+18B20做的高精度温度计，下载下来就可以正常使用-With 51 microcontroller AT89C2051+ 18B20 do precision thermometer, you can normally use downloaded
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Size: 25600 |
Author: 唐军法 |
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Description: 此程序跟《WT588D语音芯片及模块应用电路》中的三线串口控制模式应用电路相对应。测试芯片：AT89C2051-This program with the WT588D voice chip and module application circuit in the third line corresponding to the serial port control mode application circuit. The test chip: AT89C2051
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Size: 1024 |
Author: wang |
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Description: AT89C2051 BasedLine Following Robot
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Size: 1419264 |
Author: Devarshi |
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Description: AT89C2051详细中文资料，网上很难找到，快点下载助你成功。-51LIB RAY B,OOK KUIOPP[LLKHHHJ HJKJKJKJHB,KKJHHNN.
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Size: 291840 |
Author: 佳萍萍 |
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Description: 锁相环控制,用的IC是AT89C2051,用P1口做控制,不知大家有没兴趣()
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Size: 1024 |
Author: qxzcuional
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Description: 锁相环控制,用的IC是AT89C2051,用P1口做控制,不知大家有没兴趣()
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Size: 1024 |
Author: wellae |
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Description: 红外遥控发固定码值程序，可以循环发送码值(IR send and can send always)
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Size: 2048 |
Author: xinghe1979 |
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Description: 锁相环控制,用的IC是AT89C2051,用P1口做控制,不知大家有没兴趣()
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Size: 1024 |
Author: schedulg |
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Description: TRANSCEIVER 75 - 85 MHz (5 KHz BASE STEP)
Step 5/25 Kc (10/50 Kc), VCO 32.65 - 43.00 (65.30 - 86.00)
v4.1.0
AT89C2051-24PI
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Platform: |
Size: 2445 |
Author: ndowie |
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Description: TRANSCEIVER 75 - 85 MHz (25 KHz STEP)
VCO 64.30 - 85.00 (32.15 - 42.50), Version 1.7
AT89C2051-24PI
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Size: 2170 |
Author: ndowie |
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