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Fuel theft alarm device for construction machinery

A technology of construction machinery and alarm devices, applied in the direction of anti-theft alarms, alarms, mechanical equipment, etc., can solve the problems of many guards, increase the labor cost of enterprises, and occupy a large area of ​​construction machinery, and achieve simple circuit structure, power consumption and other problems. The effect of small volume and strong operation stability

Active Publication Date: 2011-05-04
QINGDAO LOVOL EXCAVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some large companies centrally manage construction machinery, but multiple construction machinery occupy a large area and require more caretakers, which increases the labor cost of the enterprise

Method used

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  • Fuel theft alarm device for construction machinery
  • Fuel theft alarm device for construction machinery
  • Fuel theft alarm device for construction machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The fuel oil theft alarm device for construction machinery includes a microprocessor, a liquid level sensor, an alarm, a wireless sending module, and a wireless receiving module, and the microprocessor is connected to the liquid level sensor, the alarm, and the wireless sending module respectively.

[0021] The microprocessor is connected with the starting switch of the engineering machinery, and when the starting switch is placed in the "on" gear, the microprocessor is "off"; when the starting switch is placed in the "off" gear, the microprocessor is "on". The microprocessor reads the liquid level signal value monitored by the liquid level sensor at equal intervals, and compares the data of two adjacent liquid level signal values. If the two liquid level signal values ​​before and after are the same, it is normal; If the level signal value is smaller than the previous liquid level signal value, it means that the oil level has dropped, and the microprocessor starts the a...

Embodiment 2

[0024] The fuel oil theft alarm device for construction machinery includes a microprocessor, a liquid level sensor, an alarm, a wireless sending module, and a wireless receiving module, and the microprocessor is connected to the liquid level sensor, the alarm, and the wireless sending module respectively.

[0025] The microprocessor is connected with the starting switch of the engineering machinery, and when the starting switch is placed in the "on" gear, the microprocessor is "off"; when the starting switch is placed in the "off" gear, the microprocessor is "on". The microprocessor reads the liquid level signal value monitored by the liquid level sensor at equal intervals, and compares the data of two adjacent liquid level signal values. If the two liquid level signal values ​​before and after are the same, it is normal; If the level signal value is smaller than the previous liquid level signal value, it means that the oil level has dropped, and the microprocessor starts the a...

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Abstract

The invention discloses a fuel theft alarm device for construction machinery, which comprises a microprocessor, a liquid level sensor, an alarm, a wireless transmission module and a wireless receiving module, wherein the microprocessor is respectively connected with the liquid level sensor, the alarm and the wireless transmission module. The alarm device has the advantages of simple circuit structure, high operational stability and low power consumption during operation. If the microprocessor judges that the later liquid level signal value is less than the previous liquid level signal value, it indicates that the fuel level in the fuel tank descends, and the microprocessor can start the alarm in time and instruct the wireless transmission module to transmit an alarm signal. On one hand, the alarm gives out alarm sound to frighten the thief stealing the fuel; and on the other hand, the wireless transmission module transmits the alarm signal, and the wireless receiving module receives the alarm signal and reminds the working personnel to stop the thief from stealing the fuel.

Description

technical field [0001] The invention relates to a fuel oil theft alarm device installed and used on engineering machinery. Background technique [0002] Construction machinery is generally constructed in a sparsely populated environment or with a small population flow. The construction machinery is placed in the open air during the rest period of the engineering personnel. At this time, special personnel are generally not assigned to guard it. Due to the sparse population and the large fuel tanks of construction machinery, incidents of fuel theft often occur. Some large companies centralize the management of construction machinery, but multiple construction machinery occupy a large area and require more caretakers, which increases the labor cost of the enterprise. [0003] Therefore, if the existing construction machinery is modified, once a fuel oil theft occurs, the alarm will be sent in time and the alarm signal will be sent to the user through the wireless network. Sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/00G08B25/10G01F23/00
Inventor 赵志刚张博友张军荣雷阳李亮宇苏志
Owner QINGDAO LOVOL EXCAVATOR
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