Electric power measurement and control apparatus measurement and control main body and human machine interface separation scheme
A technology of measurement and control device and human-machine interface, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc. Lifting and other issues to achieve the effect of saving installation space
Inactive Publication Date: 2012-05-02
CHENGDU ZHONGHE CENTURY TECH
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[0003] Traditional measurement and control devices integrate various sensors, transmitters, control units, intelligent measurement and control bodies, and human-machine interfaces into one device. With the increase in functional requirements for measurement and control devices, the volume of measurement and control devices will inevitably increase. The space of the power distribution cabinet itself is limited, which limits the improvement of the function of the measurement and control device; if blindly miniaturized, it will lead to a decrease in electrical isolation, which cannot meet the requirements of reliability and electromagnetic compatibility, and also greatly increases the difficulty of installation and maintenance. safety
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[0010] The design scheme that we propose to separate the measurement and control body from the human-machine interface can be used in a wide range of power measurement equipment. A practical example is the transformation of the existing power distribution cabinet: the main body of the detection equipment for the voltage, current and frequency of the power distribution cabinet is set in the main body of the power measurement and control device, and the display instrument panel is separately set in a and control operation terminal, it can effectively reduce the installation space of the power distribution cabinet, and at the same time, it can also make the display and control be placed in a more suitable place; this situation is especially suitable for scattered test locations, and the test environment conditions are relatively harsh occasions. Such a setting also makes the measurement and control device more intelligent, informatized, and networked, which is in line with the di...
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The invention discloses an electric power measurement and control apparatus measurement and control main body and human machine interface separation scheme. The electric power measurement and control apparatus is formed by a measurement and control main body unit which has an on-site measurement control function and a terminal which can display independently and control an operation, wherein the measurement and control main body unit and the terminal have no physical connection. The measurement and control main body unit exchanges data with the terminal through a wireless communication mode. In the invention, the measurement and control main body is completely separated from the human machine interface. The data exchange is performed through the digital wireless communication mode. On-site measuring data display and issuing of a control command can be realized in a wireless communication scope. Functions, such as concentrated or dispersing display of many sets of the on-site measurement and control apparatuses, control operation, data management and the like can be realized. Cables and apparatus installation spaces can be greatly saved. By using the measurement and control main body and human machine interface separation scheme of the electric power measurement and control apparatus, the display and control operation terminal can be arranged in a convenient place. The scheme is especially suitable for being used in a hostile on-site measurement and control condition.
Description
technical field [0001] The invention belongs to electric power measurement and control devices, in particular to the field of electric power measurement and control devices and measurement and control technologies. Background technique [0002] The low-voltage power distribution system uses a variety of measurement and control devices to monitor various parameters of the power distribution system: such as current, voltage, active power, reactive power, power factor, and energy measurement; at the same time, it also needs to be based on Various power consumption modes adjust the operation mode of the power distribution system; in the event of a failure, the power transmission strategy must be temporarily changed to ensure a reliable power supply. Various mechanical and pointer measuring instruments are widely used in the traditional low-voltage power distribution system, and manual opening and closing are basically used when changing the operating mode. [0003] The traditio...
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IPC IPC(8): G05B19/418
CPCY02P90/02
Inventor 黄稚斌
Owner CHENGDU ZHONGHE CENTURY TECH