ZigBee wireless sensor electricity saving method

A wireless sensor and power supply technology, applied in wireless communication, electrical components, energy-saving ICT, etc., can solve the problems of ZigBee wireless sensor loss of use value, shorten battery life, and consume large battery power, so as to save battery power and prolong use Longevity and the effect of reducing power consumption

Active Publication Date: 2012-03-28
上海集成通信设备有限公司
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Problems solved by technology

The traditional method is to transmit every collected data, which will consume a lot of battery power, seriously shor

Method used

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  • ZigBee wireless sensor electricity saving method
  • ZigBee wireless sensor electricity saving method
  • ZigBee wireless sensor electricity saving method

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Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] see Figure 5 , the invention provides a kind of ZigBee wireless sensor power-saving method, comprises the following steps:

[0046] (1) initialization;

[0047] (2) When the sleep interval is reached, wake up the MPU;

[0048] (3) The MPU reads the current data from the sensing device and calculates the change from the previous transmitted value;

[0049] (4) Judging whether the amount of change is greater than or equal to the threshold, if yes, execute step (5); if not, execute step (6);

[0050] (5) Turn on the ZigBee power supply, establish a link, send the current collected data, cut off the ZigBee power supply, modify the sending data record, and execute step (8);

[0051] (6) Determine whether the data change direction has changed, if so, execute step (7); if not, modify the current data record, then execute step (8);

[0052] (7) T...

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Abstract

The invention relates to a ZigBee wireless sensor electricity saving method. The method comprises the following steps: initializing; when a dormancy time interval arrives, waking up a MPU; reading data from a perception device by the MPU and calculating a variation with a previous transmission value; determining whether the variation is greater than or equal to a threshold; connecting a ZigBee power supply, establishing a link, sending the current acquisition data, cutting off the ZigBee power supply and modifying a data sending record; determining whether a data changing direction changes; connecting the ZigBee power supply, establishing the link, sending the previous acquisition data, cutting off the ZigBee power supply and modifying the data sending record so that the MPU enters into a dormancy state. By using the ZigBee wireless sensor electricity saving method of the invention, an incremental push model data transmission method is used; under the condition of guaranteeing perception precision and alarm response timeliness, sending times of the repetitive data and the approximate data can be greatly reduced; battery power can be effectively saved and a service life of the battery can be prolonged.

Description

technical field [0001] The invention relates to the field of wireless sensors, in particular to a method for realizing power saving of ZigBee wireless sensors by adopting incremental push mode to transmit data. Background technique [0002] The wireless sensor using ZigBee technology, using the low power consumption of ZigBee, can make the battery have a long service life and become a wireless sensor with practical value. When ZigBee wireless sensors are applied in real-time monitoring systems, in order to ensure the timeliness of alarm response, intensive data perception collection with high duty cycle (for example, once per minute) is required. The traditional method is to transmit every collected data, which will consume a lot of battery power, seriously shorten the battery life, require frequent battery replacement, and even make ZigBee wireless sensors lose their use value. When the perceived quantity is a slowly changing inertial quantity (such as room temperature), a...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 张康明周伟锋周宙付根利姚强江一帆保建勋
Owner 上海集成通信设备有限公司
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