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Unattended microwave radar-microphone array sound wave detector node

A technology of microphone array and microwave radar, which is applied in radio wave measurement system, radio wave reflection/reradiation, measurement of ultrasonic/sonic wave/infrasonic wave, etc. The effect of alarm probability, low power consumption, and simplified complexity

Pending Publication Date: 2021-11-09
厦门市弘威崇安科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In China, micro-microwave radars are mainly used for vehicle speed measurement, or fixedly installed around guarded areas as security equipment, but the existing micro-microwave radar T-UGS nodes have the disadvantages of high power consumption and high probability of false alarms

Method used

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  • Unattended microwave radar-microphone array sound wave detector node
  • Unattended microwave radar-microphone array sound wave detector node
  • Unattended microwave radar-microphone array sound wave detector node

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Embodiment

[0031] This embodiment provides an unattended microwave radar-microphone array acoustic detector node, hereinafter referred to as the T-UGS node, which is installed inside a node housing, and the node is provided with a power supply and a dual microprocessor system .

[0032] Described power supply described power supply adopts lithium battery and solar cell panel hybrid power supply, and adopts PMOS tube electronic switch (such as figure 2 shown) controls the power supply of the microphone array acoustic wave detector and other functional modules in the control node to be turned on or off, thereby realizing the time-sharing work of these functional modules. The power supply can be turned on or off according to the needs. Specifically, a 3.7V / 5.2Ah lithium battery / 3W solar panel is used for hybrid power supply, and 1000 pieces of reporting information are sent to the outside (monitoring terminal) every day. The effective working time is greater than 30 days. The power supply...

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Abstract

The invention discloses an unattended microwave radar-microphone array sound wave detector node which adopts a double-microprocessor system, a first microprocessor is connected with a sound wave signal generator, a target detector and a rain sound detector, and the target detector comprises a microwave radar and a microphone array sound wave detector; the microwave radar comprises a trigger type detection mode and a periodic detection mode; the microphone array sound wave detector is used for detecting environmental noise and triggering the microwave radar to start a trigger type detection mode; the rain sound detector is used for detecting ticking sound of a raindrop falling on the node shell and triggering the microwave radar to start a periodic detection mode; the second microprocessor is connected with a wireless communication module; and the wireless communication module is used for realizing two-way communication between the nodes or between the nodes and an external handheld terminal. The node has the advantages of low power consumption and low false alarm probability.

Description

technical field [0001] The invention relates to the technical field of wireless sensors, in particular to an unattended microwave radar-microphone array acoustic wave detector node. Background technique [0002] In the past 30 years, a variety of vibration sensor nodes, vibration-sound sensor nodes, vibration-magnetic sensor nodes, vibration-sound-magnetic sensor nodes, microwave radar and microwave radar-cameras have been developed successively at home and abroad. These nodes are collectively referred to as wireless sensor network (WSN) nodes, also known as unattended ground sensor (T-UGS) nodes. [0003] In China, micro-microwave radars are mainly used for vehicle speed measurement, or fixedly installed around guarded areas as security equipment. However, the existing micro-microwave radar T-UGS nodes have the disadvantages of high power consumption and high probability of false alarms. Contents of the invention [0004] In order to solve the above problems, the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/58G01H11/06H04W4/70G08B3/10
CPCG01S13/58G01H11/06H04W4/70G08B3/10Y02D30/70
Inventor 潘仲明蔡劲松
Owner 厦门市弘威崇安科技有限公司
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