Radio frequency controllable switch based on power line carrier and power optical fiber channel

Abstract

The invention discloses a radio frequency controllable switch based on a power line carrier and a power optical fiber channel, and belongs to a circuit switching device in the field of power. The switch comprises a main station and a slave station, wherein the main station comprises a singlechip and a peripheral device thereof, a liquid crystal display screen, a key, a wireless receiving and transmitting module and a power supply; the singlechip is connected with the key, the liquid crystal display screen and the wireless receiving and transmitting module respectively; the power supply is connected with the singlechip, the liquid crystal display screen, the key and the wireless receiving and transmitting module respectively; the slave station comprises a singlechip and a peripheral device thereof, a wireless receiving and transmitting module, a photoelectric coupler, a solid state relay, a contactor switch, a 485 conversion interface and a power supply; the singlechip is connected with the wireless receiving and transmitting module, the photoelectric coupler and the 485 conversion interface respectively; an input end of the solid state relay is connected with an output end of the photoelectric coupler, and an output end of the solid state relay is connected with the contactor switch; and the power supply is connected with the singlechip, the photoelectric coupler, the solid state relay, the 485 conversion interface and the wireless receiving and transmitting module respectively.

Description

technical field [0001] The invention belongs to a circuit switch device in the field of electric power, in particular to a low-voltage power switch device built under a power line carrier, a power optical fiber and a 230M power private network channel. The invention can be applied to the load on-off control of 220v / 380v circuits, and can work under the framework of smart grid to realize remote intelligent control. Background technique [0002] At present, although the control switch of the existing smart meter can realize the on-off control of the circuit, it has the following problems: [0003] 1. The built-in AC solid state relay SSR ( solid state reley), is a non-contact on-off electronic switch, this type of solid state relay has greater sensitivity to surge (or overload) current. For example, the household appliances in our daily life have different capacities and states of use, and the overall capacity continues to rise. In this way, it is easy to cause safety prob...

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Problems solved by technology

In this way, it is easy to cause safety problems, such as: fire accidents caused by electric fire

[0004] 2. There is an obvious problem in the integrated design of the electric energy measurement function of the smart meter and the control switch, that is, the damage of the control switch parts requires the overall replacement of the smart meter; this makes the production cost of the smart meter and the user's use cost unable to lower

[0005] 3. The emergence of smart meters will inevitably eliminate all kinds of old models of meters, and the overall replacement volume is huge; this includes a large number of old-fashioned electronic meters in stock. From the perspective of energy conservation and emission reduction in the "Twelfth Five-Year Plan" , a huge waste

[0006] 4. The structure of the smart grid is still being perfected, and it will take quite a while to popularize it, which cannot meet the timely collection of electricity charges by current power companies

For example: after residential users pay in arrears, the power service department cannot resume power transmission in a timely and fast manner due to the large number of users in a short period of time

For power companies that emphasize the construction of business style, it is easy to cause service problems

Moreover, during this period of work, the watch box needs to be opened, and a large number of locks are wastefully used, which increases the operating cost of the enterprise.

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