A construction site illegal operation alarm device and its application method
An alarm device, construction site technology, applied in pump control, liquid variable capacity machinery, machines/engines, etc., can solve problems such as failure to reflect circuit violation wiring, vacuum pump damage, and difficulty in troubleshooting, and achieve reliable security and order. , The effect of rapid detection and loss reduction
Active Publication Date: 2019-11-22
YANGZHOU UNIV
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Problems solved by technology
However, for the convenience and trouble-saving of construction, workers often connect the working coil on the AC contactor that controls the vacuum pump to the 220V AC power supply directly, so that the vacuum pump can work for 24 hours, and the vacuum pump will soon be damaged.
[0003] At present, the construction site illegal operation alarm devices in the market have a single structure and simple functions, and some alarm devices only have the function of detecting circuit overload, and cannot reflect the illegal wiring of the circuit.
When there is a problem in the circuit, it is difficult to find out where the problem occurs, so the troubleshooting of the problem is a big problem
In addition, it is not timely from the emergence of the problem until the project leader can know the situation, and there is a large lag
Method used
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[0033] The construction site illegal operation alarm device of the present invention is a circuit state detection and alarm system. The system has a two-way channel, that is, it can feed back the operation status of the construction site and allow the project leader to remotely control the on and off of the vacuum pump circuit. The main components of the system are STC12C series single-chip microcomputer, SIM800 module, liquid crystal display, transformer, MP3202 chip, 24V voltage stabilizing module and solid state relay, etc.
[0034] Such as figure 1 Shown: The schematic diagram of the working principle of the alarm device briefly describes the working process of the system and the connection between each main component and module. What the central processing unit selects is STC12C series single-chip microcomputer, is the central console of the whole alarm device. The serial A / D converter chip MCP3202 is used to collect the voltage of the transformer and the potentiometer,...
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A construction site illegal operation alarm device and its use method, characterized in that the violation detection and precise positioning mechanism is realized by measuring the voltage of the transformer and potentiometer, and the voltage of the potentiometer can be used to know whether the vacuum pump is working, and the mutual inductance Combined with the signal of the vacuum pump, it is used to determine whether the vacuum pump is used in violation of regulations. The invention detects illegal operations quickly, transmits alarm information in a timely manner, and has convenient and effective remote control, and has dual protection mechanisms, which can not only prolong the service life of the vacuum pump, but also protect the life safety of construction foundation pit pumping workers, and ensure the safety and order of the construction site. .
Description
technical field [0001] The invention relates to an alarm device, in particular to an alarm device for illegal operation on a construction site, that is, a circuit wiring violation detection and alarm device. Background technique [0002] Vacuum pumps are used to extract groundwater around the foundation pit of the construction site to ensure that the soil on the construction site is dry and convenient for construction. The vacuum pump is equipped with a vacuum degree sensor. When a certain degree of vacuum is reached, the relay will act, the normally closed contact will be disconnected, and the vacuum pump will stop. However, for the convenience and trouble-saving of construction, workers often directly connect the working coil on the AC contactor that controls the vacuum pump to the 220V AC power supply, so that the vacuum pump can work 24 hours, and the vacuum pump will be damaged soon. [0003] At present, the construction site illegal operation alarm devices that exist ...
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IPC IPC(8): F04B49/06F04B49/10
CPCF04B49/065F04B49/10
Inventor 王昌龙张远东李超超魏春柏长林唐红
Owner YANGZHOU UNIV