Internet of Things nursing LED lamp with self-checking function
A technology of LED lights and the Internet of Things, applied in the field of the Internet of Things, can solve the problems of long charging time of the energy storage unit, affecting the communication function, waste of human resources, etc. Effect
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Embodiment 1
[0034] This embodiment has been improved on the basis of the prior art, so that this type of Internet of Things nursing LED light has a self-checking function.
[0035] combine figure 1 , an Internet of Things nursing LED lamp with self-test function, including a base 2, the base 2 is arranged in the spherical lampshade 1, located inside the spherical lampshade 1 and a circuit substrate 3 is arranged on the base 2, and the circuit substrate 3 is fixed There are thirty-six lamp beads 4, combined with figure 2, the circuit substrate 3 is provided with a lighting module and a communication module, the lighting module is connected to the background server through the communication module signal, the background server sends lighting instructions to the lighting module through the communication module, the lighting module includes a lighting master control unit for controlling lighting of lamps, lighting The signal output end of the main control unit is connected to the lighting u...
Embodiment 2
[0042] Compared with Embodiment 1, this embodiment adds a power failure detection unit in the communication module. The power failure detection unit is used to detect the power supply status of the power supply terminal to the lighting module, and transmits the power failure signal to the lighting module when the lighting module is powered off. In the communication main control unit, the power failure detection unit is connected with the communication main control unit.
[0043] Specifically, on the one hand, the power failure detection unit acquires the working current characteristics of the communication main control unit and forms the first current characteristic data; on the other hand, it acquires the working current characteristics of the lighting module and forms the second current characteristic data; A first analysis unit and a second analysis unit are provided, and both the first analysis unit and the second analysis unit are used to compare whether the first current ...
Embodiment 3
[0046] In this embodiment, on the basis of Embodiment 2, an additional power supply and current stabilization function circuit is added, and at this time, a limited-current constant-voltage charging unit is added in the lighting module.
[0047] The lighting main control unit is connected with a limited-current constant-voltage charging unit for limiting the current of the power supply electric energy and stabilizing the supply voltage. The current-limiting constant-voltage charging unit is connected with an energy storage unit, and the energy storage unit is used for rectifying the input alternating current It is a direct current and supplies power to the communication module. In this invention, the energy storage unit is a supercapacitor.
[0048] Such as Figure 9 As shown, the current-limiting constant voltage charging unit includes rectifier U3, rectifier U4, rectifier U5, resistors R13, D2, D3, resistor R11, resistor R14, the ratio of resistor R11 to resistor R14 determi...
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