Description: Security in wireless sensor networks is currently provided
through symmetric key cryptography. Although the low
computational complexity involved in private key algorithms is
advantageous, session keys must be embedded in the sensor nodes
before the nodes can be deployed. Protocols are also necessary to
ensure synchronization of keys between the devices on a network.
These protocols require significant communication and storage
overhead. The limitation of such a cryptosystem is that it is not
possible to guarantee the confidentiality of the session keys Platform: |
Size: 179200 |
Author:yared |
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Description: 无线传感网络时间同步FTSP protocol. 支持LOW POWER LISTENING。 将精度改为30us， 支持TMOTE,IRIS。-Wireless sensor network time synchronization FTSP protocol. Support LOW POWER LISTENING. The accuracy to 30us, support TMOTE, IRIS. Platform: |
Size: 8192 |
Author:毛月薪 |
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Description: 此函数用于产生脉冲超宽带系统的训练序列的波形。输出参数有三个：bits--发送的数据,stx--发送的信号,ref--参考信号
发送端调制方式为TH-PAM-The emerging ultra-wideband (UWB) system offers a great potential
for high data rate wireless multimedia applications of the home
entertainment and industry, as well as for low data rate sensor
networks involving low power devices~\cite{paragraph1}. One of the
most acute challenges in realizing these potentials of the UWB
systems is the timing acquisition. Timing errors as small as
fractions of a nanosecond could seriously degrade the system
performance~\cite{paragraph21}. The difficulty in UWB
synchronization arises from UWB signals being the ultrashort
low-duty-cycle pulses operating at very low power density. Platform: |
Size: 1024 |
Author:徐微 |
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Description: 自组织网络中的时钟同步，适用于无线传感器网络-Time synchronization in ad hoc networks,using in wireless sensor networks Platform: |
Size: 118784 |
Author:雪枫 |
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Description: 用O．1ms／line线阵图像传感器和数字信号处理器(DSP)实现了立式点钞机1200张／分运行速度下的纸币号码图像的
同步识别。解决了DSP的有限存储空间与数字图像处理的大数据量之间的矛盾。-By O. 1ms/line image sensor and digital signal processor (DSP) to achieve a vertical money counter 1200/min number of notes under the speed synchronization of image recognition. Solve the limited storage space DSP and digital image processing of large amounts of data between the contradictions. Platform: |
Size: 522240 |
Author: |
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Description: mdt10p53a11(兼容PIC12F509)开发，采用加速度传感器设置。
无线刹车尾灯（可以实现赛车游戏里面的效果）
功能要求
1.采用PWM方式控制led灯
2.内部三轴加速度计采用平方和再开方的方法求得检测值。
3.每秒间隔采样5次得到的测量值进行计算，静止情况下测量值的波动的范围要小于2％。当测量值超过静态值17％以上的情况，认为是有刹车的情况。Led灯按照规定点亮。
4.模式2led灯闪烁的情况下每秒闪烁5次，加速度检测和led灯亮在单片机内部同步，不工作的情况使单片机进入休眠状态。
5.模式3led灯在刹车情况下亮，在每秒采样5次加速度并且led灯不需要点亮的时间单片机休眠。
6.模式1恒亮的状态单片机发出PWM脉冲，点亮led灯，这个时候单片机如果能在间歇休眠模式最好，如果不能，正常工作即可。-mdt10p53a11 (compatible PIC12F509) development, using the acceleration sensor settings.
Wireless rear brake (which allows the effect of racing game)
Functional requirements
1 using PWM control the led lights
2-axis accelerometer inside the square and then prescribing the use of the method obtained detection value.
3 5 times per second sampling interval has been calculated measurements, stationary measurements of the fluctuations in the case of the range of less than 2 . When the measured value exceeds the value of more than 17 of the static situation, that there is a braking situation. Led lights light up in accordance with regulations.
4 lights flashing mode 2led case flashes 5 times per second, acceleration detection and led lights in the MCU internal synchronization, the situation does not work so the device enters the sleep state.
5 mode 3led bright light in the case of braking, acceleration in the five samples per second and led lights do not light up the time the m Platform: |
Size: 102400 |
Author: |
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Description: this source code for time synchronization in wireless sensor network which I wrote for my Ms.c thesis. it includes flooding, routing, clustering and time synchronisation.-this is source code for time synchronization in wireless sensor network which I wrote for my Ms.c thesis. it includes flooding, routing, clustering and time synchronisation. Platform: |
Size: 13312 |
Author:Sepideh10 |
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Description: 关于无线传感器网络时间同步算法在VB在的仿真-Wireless sensor network time synchronization algorithm in VB in the simulation Platform: |
Size: 12288 |
Author:wuqufuhua |
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Search - synchronization sensor