Wireless reminding alarm device
An alarm device and wireless technology, applied in the field of wireless reminder alarm devices, can solve the problems of large power consumption, large volume, false alarms, etc., and achieve the effect of low power consumption and high accuracy
Inactive Publication Date: 2008-12-10
王其武
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Problems solved by technology
[0002] Most of the existing wireless reminder alarm devices use simple transmitter receivers, and because their frequencies are affected by circuit stability and the environment, false alarms often occur
Another device for firearms away alarm, only suitable for metal objects
In addition, most of the existing separate wireless reminder and alarm devices are implemented by discrete devices, which consume a lot of power and are bulky, and are not economical and practical.
Method used
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Embodiment Construction
[0014] Each wireless reminder alarm device is composed of a pair of main transmitter receiver and auxiliary transmitter receiver. Secondary transmitter receiver installed on the controlled object (such as figure 1 ) to launch. The main transmitter receiver held by the owner (such as figure 2 ) is based on reception. Each Transceiver has its own identification code to distinguish it from other Transceivers. The specific circuit will be slightly changed according to the selected transmitter and receiver chips.
[0015] The operation of the wireless reminder and alarm device is controlled by the microcontroller software in the transmitter receiver. The radio frequency signal generated by the sub-transmitter receiver installed on the controlled object passes through the antenna matching network MN1, the switch SW1, and sends out regularly or continuously through the antenna ANT1. The switch SW1 is controlled by the first Zigbee chip ZBT1, and switches between receiving and t...
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The present invention relates to a wireless reminding and alarming device. A main transmitting and receiving device comprises a second Zigbee chip; the second Zigbee chip is connected with an antenna ANT2 through a network MN2 and a switch SW2 which match with an antenna; the second Zigbee chip is also connected with a buzzer SP; an auxiliary transmitting and receiving device comprises a first Zigbee chip; the first Zigbee chip is connected with an antenna ANT1 through a network MN1 and a switch SW1 which match with the antenna; the antenna ANT1 is connected with the antenna ANT2 through wireless radio-frequency signals. When the user is in a certain distance away from the monitored object, the receiver carried by the user can emit reminding signals to remind the user. The wireless reminding and alarming device has the characteristic of high accuracy, low power consumption and economical and practical performance.
Description
technical field [0001] The invention relates to a wireless reminder and alarm device, in particular, it is a special device for realizing alarm and reminder when the monitored object is away from or close to the distance set by the owner. Background technique [0002] Most of the existing wireless reminder alarm devices use simple transmitter receivers, and because their frequencies are affected by circuit stability and the environment, false alarms often occur. Another device for firearms away alarms, only for metal objects. In addition, most of the existing separate wireless reminder and alarm devices are implemented with discrete devices, which consume a lot of power and are bulky, and are not economical and practical. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high accuracy, low power consumption, economical and practical wireless warning alarm device, which automatically sends out a warning alarm sig...
Claims
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Inventor 王其武
Owner 王其武