Ultra-low power consumption wireless geomagnetic type vehicle detector and control method thereof

A vehicle detector, ultra-low power consumption technology, applied in the direction of road vehicle traffic control systems, traffic control systems, instruments, etc., can solve the problems of road damage, high requirements on orientation and angle, increase the difficulty of installation and debugging and Chen Ben , to achieve the effect of reducing power consumption and reducing operating current

CN105632188AInactive Publication Date: 2016-06-01710TH RES INST OF CHINA SHIPBUILDING IND CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an ultra-low power consumption wireless geomagnetic type vehicle detector and a control method thereof. In order to prevent the unnecessary electric energy consumption during the conveying process and the storage process of the wireless geomagnetic type vehicle detector, a mercury switch is serially connected between a battery and a circuit board, and when the wireless geomagnetic type vehicle detector is not in use, the wireless geomagnetic type vehicle detector can be arranged in an inverted manner, and therefore the power off can be realized, and the zero power consumption effect can be realized. An LDO-0 circuit is additionally provided, and power supply voltage of a wireless communication module, power supply voltage of a MCU processing unit, and power supply voltage of a magnetic acquisition module are reduced, and then the working current of the whole wireless geomagnetic type vehicle detector can be reduced. During the working of the wireless geomagnetic type vehicle detector, only the MCU processing unit and the wireless communication module are required to work continuously, and the magnetic acquisition module is not required to work constantly, and therefore the LDO-0 circuit is additionally provided, and then the MCU processing unit is used to control the interruptible power supply of the magnetic acquisition module, and the power can be supplied before the magnetic field acquisition, and the power can be cut off after the completion of the magnetic field acquisition.
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Description

technical field

[0001] The invention relates to the field of low power consumption design of a wireless sensor network, in particular to an ultra-low power consumption wireless geomagnetic vehicle detector and a control method thereof. Background technique

[0002] Wireless sensor network is one of the new technologies that will bring about major changes to human life, and can be widely used in military, medical, environmental monitoring, smart cities, and smart home fields.

[0003] The emerging wireless geomagnetic vehicle detection system is one of the typical applications of wireless sensor network technology, which overcomes the problem of complex wiring and difficult construction of traditional ground induction coil vehicle detectors. However, due to the use of primary lithium batteries for power supply, the service life has become one of the key constraints.

[0004] The current known wireless geomagnetic vehicle detector composition block diagram is as follows: fig...

Examples

Embodiment Construction

[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] The present invention provides an ultra-low power consumption wireless geomagnetic vehicle detector and its control method. The present invention improves the existing device, specifically, as figure 2 Shown: There is a mercury switch at the output end of the primary lithium battery that can realize on / off; and the mercury switch is connected with a low-dropout linear voltage regulator circuit (LDO-0 circuit) to convert the 3.6V output of the primary lithium battery The voltage is converted to 3V to supply power to the MCU processing unit, wireless communication module and magnetic acquisition module; when the wireless geomagnetic vehicle detector is working, only the MCU processing unit and wireless communication module continue to work, while the magnetic acquisition module does not need to continue to work. Therefore, the MCU processing unit can...