Wireless sensor network system and gateway power failure abnormity processing method thereof

A wireless sensor and network system technology, applied in the field of wireless sensor network system and its gateway power-down exception processing, can solve the problems of long-time waiting of nodes, untimely data transmission, complex management functions, etc., to reduce energy consumption, The effect of extending the service life

Inactive Publication Date: 2013-01-16
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the gateway fails, the data collected by the entire network will not be transmitted to the upper layer in time
In actual engineering applications, even the reliability of the gateway of the wired network cannot be 100%. What's more, the wireless gateway not only needs to complete the data exchange with the background management system through the cable, but also needs to manage the entire network through the wireless, and the management function is better than the wired gateway. It is more complicated, because the network operation strategy in the case of abnormal gateway must be considered
In particular, the energy of the underlying nodes is limited. If the gateway is abnormal, the nodes will wait for a long time, and the data will be resent repeatedly.
If things go on like this, the energy of the nodes will be exhausted quickly. When the gateway returns to normal, the energy of the nodes will be insufficient, which will greatly affect the life of the entire wireless sensor network.

Method used

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  • Wireless sensor network system and gateway power failure abnormity processing method thereof
  • Wireless sensor network system and gateway power failure abnormity processing method thereof
  • Wireless sensor network system and gateway power failure abnormity processing method thereof

Examples

Experimental program
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Embodiment 1

[0035] see figure 1 , a wireless sensor network system comprising:

[0036] A 3.3v common power supply (101) provides working voltage for the wireless gateway (1) during normal operation, and a charging power supply for the backup power supply (102).

[0037] A backup power supply (102), the backup power supply (102) is charged when the normal power supply (101) of the gateway (1) is normally powered, and is discharged for the wireless gateway through its own discharge when the normal power supply (101) of the gateway (1) is abnormal (1) Power supply.

[0038] A CC2530 (104) with a 51 microprocessor, CC2530 (104) realizes real-time voltage monitoring of the common power supply (101) through its own 12-bit analog-to-digital converter. When the monitored voltage value will be 0v, it means that the power supply has been cut off at this time. After the microprocessor CC2530 (104) learns the power supply situation of the gateway (1), the normal power ...

Embodiment 2

[0041] see figure 1 and figure 2 , the network system composed of the gateway (1) and the nodes (2) with a backup power supply (102), is characterized in that the backup power supply (102) is enabled when the gateway (1) is powered off. figure 2The common power supply (201) in is figure 1 The specific implementation of the common power supply (101) in the, the standby power supply (202) is figure 1 The specific implementation of the standby power supply (102). The common power supply (201) can be two common AA dry batteries, or a DC voltage obtained through DC / DC conversion. The standby power supply (202) uses a Panasonic EECS5R5 series farad capacitor C1 (204). The farad capacitor C1 (204) has a withstand voltage of 5.5v and a capacity of 3.3F. In the normal network operation stage, the common power supply (201), through the diode D1 and the current limiting resistor R int Quickly charge the EECS5R5 farad capacitor C1 (204). When the common power supply (201) s...

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PUM

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Abstract

The invention discloses a power supply design management and abnormal power failure processing method for a wireless sensor network gateway. When gateway equipment is under the condition that a common power supply is powered off, the ordered operation of a network system is implemented by starting a standby power supply and notifying a bottom node power failure information. The power supply design management and abnormal power failure processing method comprises the following specific implementing steps: 1, constructing the network system consisting of the gateway with the standby power supply and nodes; 2, by ensuring the gateway equivalent to an equivalent resistance changed with a voltage, reasonably designing the capacity of a super capacitor so as to implement the design of the standby power supply; and 3, when the common power supply in the gateway is powered off, providing the wireless sensor network gateway power failure abnormity processing method so as to implement the low power consumption operation of the network system.

Description

technical field [0001] The present invention relates to embedded technology and network control technology, in particular to a wireless sensor network system and its gateway power-off abnormal processing method, which uses a farad capacitor as the backup power supply of the gateway wireless module. When the gateway is abnormally powered off, Provide energy for the release of abnormal commands of the gateway to achieve low power consumption of the underlying nodes. Background technique [0002] Due to the small size of the nodes, self-organization, self-recovery, easy deployment, and strong dynamics, the wireless sensor network can well monitor the physical parameters of the environment. The next key research direction in the automation of control, home, ship and transportation systems. The nodes collect data, report their collected data to the aggregation node, cluster head node and gateway, and realize the monitoring of environmental parameters, all of which operate under ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02D30/70
Inventor 付敬奇朱献忠苏伟阮军杰费敏锐王海宽李昕高守玮侯维岩
Owner SHANGHAI UNIV
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