Abstract: The present application relates to a synthesis method for N-methyl-3-substituted methyl-4-pyrazolamide derivative and N-methyl-3-substituted methyl-4-pyrazolic acid, including the following steps: step S1: synthesis of intermediate E; step S2: synthesis of intermediate D; step S3: synthesis of intermediate C; step S4: synthesis of N-methyl-3-substituted methyl-4-pyrazolamide derivative; and synthesis of N-methyl-3- substituted methyl-4-pyrazolic acid by decomposition of N-methyl-3-substituted methyl-4-pyrazolamide derivative.

Abstract: A method for coordinating warning devices and a warning device are provided. The method is used to coordinate a plurality of warning devices. The method includes: providing a first warning device and at least one second warning device, wherein the first warning device has a first controller and each second warning device has a second controller; generating a first result and a second result according to an operation; operating the first controller in a first mode or a second mode according to the first result and the second result; and generating a first driving signal by the first controller if the first controller is in the first mode.

Abstract: A photovoltaic intelligent power supply, comprising a plurality of unit modules, and a communication unit (103) and a control unit (106), wherein all the unit modules are connected to the control unit (106) and the communication unit (103); each unit module comprises an input collection unit (101), a data acquisition unit (102), a boost unit (104), an arc isolation unit (105) and an anti-PID unit (107), wherein the input collection unit (101) is connected to a photovoltaic module; the data acquisition unit (102) is configured to acquire voltage and current state signals; the boost unit (104) is configured to perform interleaving chopping and operate in an MPPT mode; the arc isolation unit (105) is configured to receive instructions sent by the control unit (106) to execute opening and closing; and the anti-PID unit (107) is configured to receive instructions sent by the control unit (106) so as to generate proper DC voltages to be applied between a negative electrode of a cell panel and the ground.

Abstract: A photovoltaic intelligent power supply, comprising a plurality of unit modules, and a communication unit (103) and a control unit (106), wherein all the unit modules are connected to the control unit (106) and the communication unit (103); each unit module comprises an input collection unit (101), a data acquisition unit (102), a boost unit (104), an arc isolation unit (105) and an anti-PID unit (107), wherein the input collection unit (101) is connected to a photovoltaic module; the data acquisition unit (102) is configured to acquire voltage and current state signals; the boost unit (104) is configured to perform interleaving chopping and operate in an MPPT mode; the arc isolation unit (105) is configured to receive instructions sent by the control unit (106) to execute opening and closing; and the anti-PID unit (107) is configured to receive instructions sent by the control unit (106) so as to generate proper DC voltages to be applied between a negative electrode of a cell panel and the ground.

Abstract: A driving system for a multi-energy power supply motor comprises a distributed power supply, a frequency converter, a public power grid, and a motor load. The distributed power supply is connected to a direct-current bus of the frequency converter, and is used for acquiring and transmitting a direct current to the frequency converter. The frequency converter comprises a first bidirectional current transformer, an inverter, and a direct-current bus. The first bidirectional current transformer is connected to the inverter through the direct-current bus. The first bidirectional current transformer is connected to the public power grid. The inverter is connected to the motor load. The distributed power supply, the public power grid and the motor load are separately connected to the frequency converter.