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Multimeter batch verification auxiliary system and multimeter batch verification system

An auxiliary system and multimeter technology, applied in the measurement of electrical variables, measuring devices, instruments, etc., can solve the problems of too much data, long time, affecting the efficiency of detection, and achieve the effect of improving work efficiency and reducing false detection rate.

Pending Publication Date: 2018-01-23
XISHUANGBANNA POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of manual verification, it is necessary to consult the technical manual or previous verification records to determine the calibration point, and the staff need special training
In addition, different ranges need to be manually reconnected to the connection line of the calibrator, which requires human eyes to read the meter display data, manually record, and manually calculate the error point by point. The data required for recording and calculation is more, and it will take a long time. , which directly affects the detection efficiency, and there is also a certain false detection rate

Method used

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  • Multimeter batch verification auxiliary system and multimeter batch verification system
  • Multimeter batch verification auxiliary system and multimeter batch verification system
  • Multimeter batch verification auxiliary system and multimeter batch verification system

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Embodiment 1

[0034] This embodiment provides a multimeter batch verification auxiliary system, such as Figure 1 to Figure 3 As shown, the system includes a multimeter installation table, an installation table driving device, an image acquisition device 140 and a calibration link module.

[0035] Wherein, the multimeter installation table is used for placing the multimeter 4 to be tested. The installation table driving device is connected with the multimeter installation table, and is used to drive the multimeter installation table and the multimeter placed on the multimeter installation table to move relative to the image acquisition device.

[0036] In an alternative embodiment, such as figure 1 As shown, the multimeter installation platform may include a driving roller 112 , a passive roller 113 and a conveyor belt 111 connected to the driving roller 112 and the passive roller 113 . The multimeter to be tested can be installed on the conveyor belt 111 . The stage driving device may i...

Embodiment 2

[0054] This embodiment provides a kind of multimeter batch verification system, such as Figure 4 As shown, it includes a control machine 200, a verification standard source 300 and the multimeter batch verification auxiliary system 100 described in the first embodiment above.

[0055] The control machine 200 is connected to the image acquisition device 140 in the multimeter batch verification auxiliary system 100 by wire. For example, the control machine 200 can be connected with the image acquisition device 140 through a gigabit network card, and receive the CCD image collected by the image acquisition device 140 in real time.

[0056] The control machine 200 is provided with a motion control card, which is connected with the drive device of the mounting table and used to control the movement of the mounting table of the multimeter. The driving device of the mounting table includes a driving motor 130 and an electric pulley 116 driven to rotate by the driving motor 130 . T...

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Abstract

The invention provides a multimeter batch verification auxiliary system and a multimeter batch verification system. The multimeter batch verification auxiliary system comprises a multimeter mounting table, a mounting table driving device, an image acquisition device and a calibration link module. The multimeter mounting table is used for placing a to-be-detected multimeter. The mounting table driving device is connected with the multimeter mounting table, and is used for driving the multimeter mounting table to move relative to the image acquisition device. The image acquisition device is arranged opposite to one side of the multimeter mounting table that is used for placing the multimeter, and is used for acquiring the image of the display screen of the multimeter. The calibration link module is used for being connected between the to-be-detected multimeter and a verification standard source. By adopting the multimeter batch verification auxiliary system and the multimeter batch verification system, the image of the display screen of the multimeter is acquired by the image acquisition device. Therefore, a numerical value displayed by the multimeter can be automatically recognizedand the batch verification can be realized. The manual detection process is replaced by the above system, and the working efficiency of detection is improved. The error detection rate is reduced.

Description

technical field [0001] The invention relates to the technical field of power system detection, in particular to a multimeter batch verification auxiliary system and a multimeter batch verification system. Background technique [0002] Portable digital multimeters have been widely used in power systems due to their advantages of convenient use and multiple measurement functions. With the rapid development of the power grid, the number of multimeters is also increasing rapidly. Various meters in the power system must be verified periodically, and the verification workload is relatively large. The accuracy and range of each meter to be tested are different. The traditional digital multimeter semi-automatic calibration device mainly controls the multi-function calibration source to output the standard signal to the multimeter, and manually reads the data of the multimeter and manually inputs it into the computer to realize the calibration function. . [0003] In the process o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 王开明吴猛方堃陈小瓦张多荣余航郑锐绑苏金武莫红青崔昊鹏莫金洪许冬冬王浩兵
Owner XISHUANGBANNA POWER SUPPLY BUREAU OF YUNNAN POWER GRID CO LTD