An Internet of Things node wake-up receiving device and wake-up method thereof
A receiving device and Internet of Things technology, applied in advanced technology, climate sustainability, sustainable communication technology, etc., can solve the problem of high total power consumption, achieve the effects of reducing power consumption, ensuring sensitivity, and reducing power consumption
Inactive Publication Date: 2021-10-22
ZHENGZHOU UNIV
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Problems solved by technology
[0008] but, image 3 The wake-up receiving device shown has a large total power consumption because the amplifier with the largest power consumption is always on
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[0033] The present invention is further described below with reference to the accompanying drawings and examples.
[0034] like Figure 5 As shown, the present invention discloses an Internet of-connected node wake-up receiving apparatus, including enabling a control circuit and a wake-up circuit, enabling a controlled circuit output terminal connection wake-up circuit controlled end.
[0035] The enable control circuit includes a clock count circuit, a logic circuit, a clock count circuit connection logic circuit input, and a logic circuit output side is provided with a comparator connection, and the EN enable end, S1 enabled, and S2 enabled;
[0036] The wake-up circuit input receives the wake-up package transmitted by the external transmitter through the antenna, and the wake-up circuit includes matching networks, low noise amplifiers, envelope detectors, baseband amplifiers, and comparators, matching networks, envelope detectors, baseband amplifiers and The power supply loop of...
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The invention discloses a wake-up receiving device for an Internet of Things node and a wake-up method thereof. The wake-up receiving device includes an enabling control circuit and a wake-up circuit, the output end of the enabling control circuit is connected to the controlled end of the wake-up circuit, and the wake-up circuit includes matching networks sequentially connected in series , a low-noise amplifier, an envelope detector, a baseband amplifier and a comparator. The wake-up method includes waking up the receiving device to enter a monitoring mode and monitoring the presence or absence of the start frame of the wake-up packet, and entering the data receiving mode after detecting the start frame. In the listening mode, the low-noise amplifier is short-circuited, and the wake-up circuit is powered on intermittently. In the receiving mode, the low-noise amplifier is turned on, and the wake-up circuit continues to work; the present invention effectively reduces the wake-up reception without sacrificing the sensitivity of the wake-up receiving device. power consumption of the device.
Description
Technical field [0001] The present invention belongs to the wake-up technical field of the wireless sensor node, the body domain network node, etc., and is specifically involved in an Internet of operation node wake-up receiving device and a wake-up method thereof. Background technique [0002] Wireless sensor nodes, the wake-up methods commonly used by the network nodes such as the body domain network node mainly include both external trigger wakeup and internal timing wake-up. Among them, external trigger wakes usually uses radio wakes, which uses external radio signals to wake up nodes, is a press-on-demand wakeup mechanism, and the node receives and demodulates the radio wake-up signal with the radio-up receiver. Since the wake-up receiving device needs to be in a working state, and its reception sensitivity limits the communication distance of the node, it requires high sensitivity and low power generation. At present, the typical wireless sensor network work environment req...
Claims
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IPC IPC(8): H04W52/02
CPCH04W52/0229H04W52/028Y02D30/70
Inventor 王耀姚梦梦
Owner ZHENGZHOU UNIV