Detection and alarm device and detection and alarm method for abnormal fuel outlet of fuel dispensers

An alarm device and fuel dispenser technology, applied in distribution devices, special distribution devices, liquid distribution, transportation or transfer devices, etc., can solve the problem of oil theft, the inability to detect abnormal oil output, and the failure of fuel dispensers to detect abnormal oil output. and other issues to achieve the effect of simple implementation and strong scalability

Inactive Publication Date: 2014-10-15
BEIJING TOCEL ELECTRONICS
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Problems solved by technology

In the gas station, criminals take advantage of the feature of not sending out pulses in the non-refueling state. In the non-refueling state, they open the pump and valve by some means to steal the oil in the oil tank of the gas station, and the fuel tanker cannot detect abnormal oil output. , also unable to detect the amount of abnormal oil

Method used

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  • Detection and alarm device and detection and alarm method for abnormal fuel outlet of fuel dispensers
  • Detection and alarm device and detection and alarm method for abnormal fuel outlet of fuel dispensers
  • Detection and alarm device and detection and alarm method for abnormal fuel outlet of fuel dispensers

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 It is a schematic diagram of the connection structure of the first existing electromagnetic encoder and flowmeter.

[0023] Such as figure 2 It is a schematic diagram of the connection structure between the existing second electromagnetic encoder and the flowmeter, since the flowmeter 1 and the encoder 2 are mechanically connected together (see figure 1 Connected by a bushing, figure 2 Through gear connection), so as long as the oil gun is out of oil, including abnormal oil out, the flow meter will rotate, and can be detected by the signal conversion unit of the encoder.

[0024] Such as image 3 As shown, the abnormal oil output detection and alarm device for a fuel tanker includes a flowmeter 1, an encoder 2, and a ...

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Abstract

The invention discloses a detection and alarm device and a detection and alarm method for abnormal fuel outlet of fuel dispensers. The detection and alarm device comprises a flow meter (1), an encoder (2) and a computer control mainboard (3). The flow meter (1) is mechanically connected with the encoder (2); the encoder (2) comprises an encoder master control CPU (central processing unit) (21) and a signal conversion unit (22); the computer control mainboard (3) comprises a monitoring processor (31), an indicating device (32), a main control microprocessor (33) and peripheral equipment (34), and the monitoring microprocessor (31) comprises an information processing module (310), an abnormal fuel outlet processing module (311) and a display driving module (312) which are connected with one another by hardware circuits; the encoder (2) is connected with the monitoring microprocessor (31) by a hardware circuit communication channel. The detection and alarm device and the detection and alarm method have the advantages that abnormal fuel outlet information of the fuel dispensers can be accurately recorded, alarm effects can be realized, functions are increased on the basis of original functions of the monitoring microprocessor, and the detection and alarm device and the detection and alarm method are simple in implementation and high in extensibility.

Description

technical field [0001] The invention belongs to the field of refueling pulse signal processing in refueling machines, in particular to the improvement of an abnormal fuel discharge detection and alarm device and method for a fuel refueling machine. Background technique [0002] The fuel dispenser is divided into two states: refueling state and non-refueling state. In the refueling state, the encoder generates pulses and sends them to the control board; in the non-refueling state, the encoder does not send out pulses when it rotates. In the gas station, criminals take advantage of the feature of not sending out pulses in the non-refueling state. In the non-refueling state, they open the pump and valve by some means to steal the oil in the oil tank of the gas station, and the fuel tanker cannot detect abnormal oil output. , It is also impossible to detect the amount of abnormal oil. [0003] The method proposed by the invention can not only find abnormal oil discharge, but a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B67D7/32
Inventor 崔良金吴少强金云山
Owner BEIJING TOCEL ELECTRONICS
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