Cable open circuit alarm device for farm irrigation

Abstract

The present invention discloses a cable open circuit alarm device for farm irrigation. The device comprises a housing, specially-produced cables and an alarm prompting circuit. The surface of the housing is provided with a socket set and a loudspeaker BL, the alarm prompting circuit comprises resistors R1-R2, diodes VD1-VD4, a three-end voltage stabilizing integration chip LM7809, a relay K, a loudspeaker BL, an electrolytic capacitor C, a triode transistor V and a sound effect integration chip HY100. One end of a detection wire A is connected with one end of the resistor R1, the anode of the electrolytic capacitor C and the base electrode of the triode transistor V, and the other end of the resistor R1 is connected with one end of the electromagnetic coil of the relay K, the cathode of the diode VD1, one end of the resistor R2 and a +12V power supply. When the cable open circuit, the cable open circuit alarm device for farm irrigation emits alarm prompts to allow farm workers to timely know that the generation of cable open circuit so as to timely perform repairing processing, shorten the stopping time of an irrigation device, ensure the normal proceeding of work and can avoid the electric shock risk of the cables with open circuit.

Description

technical field [0001] The invention relates to a cable break alarm device, in particular to a cable break alarm device for farmland irrigation. Background technique [0002] In the past, when farmers cultivated on the farmland, they used all labor and livestock as tools. This method not only required a lot of working time, but also consumed a lot of physical strength. With the development of society, crops are currently cultivated in the farmland. Generally, mechanized operations are used for harvesting and harvesting, which not only has high efficiency, but also can greatly reduce the labor intensity of farmers. In addition, many electrical equipment are now more and more used in farmland, such as electric sprinkler irrigation devices; crops for irrigation, but because the circuit of the mains power is generally not directly connected to the farmland, it is now laid to the farmland through cables, and the other end is plugged into the city power line through a longer conne...

AI Technical Summary

Problems solved by technology

[0002] In the past, when farmers cultivated on the farmland, they used all labor and livestock as tools. This method not only required a lot of working time, but also consumed a lot of physical strength. With the development of society, crops are currently cultivated in the farmland. Generally, mechanized operations are used for harvesting and harvesting, which not only has high efficiency, but also greatly reduces the labor intensity of farmers. In addition, many electrical equipment are now more and more used in farmland, such as electric sprinkler irrigation devices; crops for irrigation, but because the electric circuit of the mains is generally not directly connected to the farmland, it is now laid to the farmland through cables, and the other end is plugged into the mains line through a long connection , and then the irrigation equipment in the farmland is powered by plug-in strips. Since the connected circuits are placed on the surface of the farmland land, there are often more gravel on the land. If people pass by, if the cable is stepped on the gravel, it will easily lead to the breakage of the cable. , which leads to the power outage of the plug-in strips in the farmland, but once the irrigation equipment stops running, it is impossible to know in time whether the connected cable is faulty or the irrigation equipment itself is faulty, so it cannot be processed in time, which delays production

In addition, if the cable breaks, it cannot be repaired in time if it is not found. If someone passes by the cable again, there is a risk of electric shock

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