Human body social distance alarm
A technology for social distancing and alarms, applied in alarms, instruments, mechanical transmission signal systems, etc., can solve the problems of high popularization cost, low measurement accuracy, and inconvenience to carry, and achieve low popularization cost, high measurement accuracy, and easy portability. Effect
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Embodiment 1
[0029] Such as Figure 1 to Figure 8 As shown, a human body social distance alarm according to the present invention includes a substrate 1, a main controller 2, a power supply module 3, an indicator light group 4, a transmitting assembly 5, a receiving assembly 6 and an alarm 7, and the substrate 1 is fixed Main controller 2 is housed, specifically, described main controller 2 is OOK radio frequency chip (model is CMT2110A), and it utilizes the principle of OOK modulation to realize ranging function, specifically: OOK modulation is amplitude keying modulation ( A special case of ASK), which takes one amplitude of the modulated signal as 0 and the other as non-zero, that is, OOK modulation is obtained, also known as binary switch keying. The modulation principle is to control the frequency of transmission according to the transmission amplitude. For example, when the transmission amplitude is high, the carrier frequency is transmitted, and when the transmission amplitude is lo...
Embodiment 2
[0036] A human body social distance alarm, including a substrate 1, a main controller 2, a power supply module 3, an indicator light group 4, a transmitting component 5, a receiving component 6 and an alarm 7, the main controller 2 is fixed on the substrate 1, and the main On the substrate 1 on one side of the controller 2, a power supply module 3 and an indicator light group 4 are arranged at intervals, on the substrate 1 on the other side of the main controller 2, a transmitting assembly 5, a receiving assembly 6 and an alarm 7 are arranged at intervals, and the power supply module 3 , indicator light group 4, transmitting assembly 5, receiving assembly 6 and siren 7 are electrically connected with main controller 2 respectively. The outer shell 8 is fixedly installed on the base plate 1, and the outer shell 8 is equipped with a fixed belt 801 in a symmetrical shape. A fixing hole is provided on the top, and the fixing straps 801 are connected through the cooperation of the ...
Embodiment 3
[0038] A human body social distance alarm, including a substrate 1, a main controller 2, a power supply module 3, an indicator light group 4, a transmitting component 5, a receiving component 6 and an alarm 7, the main controller 2 is fixed on the substrate 1, and the main On the substrate 1 on one side of the controller 2, a power supply module 3 and an indicator light group 4 are arranged at intervals, on the substrate 1 on the other side of the main controller 2, a transmitting assembly 5, a receiving assembly 6 and an alarm 7 are arranged at intervals, and the power supply module 3 , indicator light group 4, transmitting assembly 5, receiving assembly 6 and siren 7 are electrically connected with main controller 2 respectively. The base plate 1 is fixed with an outer shell 8, and a lanyard 802 is mounted on the outer shell 8, so that the social distance alarm can be worn on the user's neck.
[0039] The human body social distance alarm described in the present invention ha...
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