CN202772362U

CN202772362U - Intelligent socket based on power line carrier communication network

Info

Publication number: CN202772362U
Application number: CN 201220384002
Authority: CN
Inventors: 吕滨; 关双城
Original assignee: 吕滨; 关双城
Current assignee: Heilongjiang Institute of Technology
Priority date: 2012-08-06
Filing date: 2012-08-06
Publication date: 2013-03-06
Anticipated expiration: 2022-08-06

Abstract

The utility model relates to an intelligent socket based on the power line carrier communication network, which comprises a singlechip control circuit, a state detection circuit, a communication interface circuit, a power conversion circuit and a socket body with a relay. The intelligent socket is characterized by having multiple safety protection functions, such as short-circuit protection, leakage protection and overload protection. The intelligent socket is also provided with a power line carrier communication interface for realizing the remote network control. The intelligent socket also can be used for detecting the working current of electric equipment in real time and then transmitting the detection result to a remote main control computer through the power line after carrying out the A/D conversion on the result. In this way, under the networking condition, the main control computer can realize the intelligent management on electric equipment by means of the intelligent socket, such as remote monitoring, timing control, standby energy-saving control, load power consumption metering and the like. Therefore, the intelligent socket can be widely adapted to the fields of Internet of Things, safety monitoring, remote power supply control, building energy-saving management and intelligent home furnishing.

Description

A kind of smart jack based on the power line carrier communication networking

Technical field

The utility model relates generally to Single-chip Controlling, signals collecting and processing, power-line carrier communication, the power control that especially can network.

Background technology

At present, technology of Internet of things obtains extensive use in fields such as Real-Time Monitoring, Long-distance Control, alarm linkage, energy-saving safe, environmental protection, building management and control, Smart Homes.All these transducer or intelligent terminals that are distributed in each intelligent node be unable to do without electric power system, and therefore, intelligentized power supply-distribution system is exactly the cutting edge technology of Internet of Things.The control node of Internet of Things has generally that the position disperses, node is many, distance, operational environment is complicated, stand-by time is grown and the characteristics such as unattended operation, to its monitoring, control, to administer and maintain requirement higher.Therefore, more need the intelligent power supply cooperating, furtherly, some remote monitoring and control function also can realize by intelligent electric power system.

Present smart jack design is main starting point mainly with solving stand-by power consumption, being respectively 200820086610.8,201020210145.1,201120087200.7 utility model patent such as the patent No., all is to come the holding state of identification equipment and in time cut off power supply to reach energy-conservation purpose by the variation of load current relatively.These so-called smart jack function singlenesses, and do not possess the network management function, be not suitable for Internet of Things.201020226400.1, although No. 201110342206.9 utility model patents use the wireless remote control mode can straighforward operation, but do not have two-way communication and basic information processing capability, although these functions can be come in addition Improvement and perfection by technological progress, but the remote control circuit is complicated, cost is higher, and be subject to environmental interference, remote control distance is limited, so this smart jack is used very large limitation is arranged.By By consulting literatures and patent retrieval, also do not find to adapt to well the smart jack technical scheme of Internet of Things control needs, this patent proposes at such technical background with under requiring.

Summary of the invention

The technical scheme that the utility model adopts is: adopt the detection control system take single-chip microcomputer as core; detect respectively load current and leakage current with contactless transducer; the safety functions such as short-circuit protection, overload protection and earth leakage protective are provided for power supply base; and after current value carried out A/D conversion; pass to the main control computer system by line carrier communication interface, realize thus remote monitoring and the control that can network.The electrical design of this smart jack is comprised of five parts of jack body of single chip machine controlling circuit, state detection circuit, communication interface circuit, power-switching circuit and tape relay as shown in Figure 1.This smart jack can be used as the master control system networking work of controlled intelligent terminal and far-end, can realize a series of intellectualities, the automatic managements such as any apparatus stand-by energy-saving, sequencing control, Long-distance Control, status monitoring, power measurement under the control of system host, be real intelligent electric supply installation.

Technical characteristics of the present utility model has 4 points: the one, adopt line carrier communication interface; can realize long-distance on-line control; smart jack can be uploaded to main control computer with load current and self work state information (equipment operation, stand-by energy-saving, overload protection, short-circuit protection, earth leakage protective, equipment shutdown), also receives and carry out the operational order of main control computer.Than adopting the dedicated communication line networking more economical and be convenient to enforcement, control more reliably than the wireless remote control mode, be not subjected to environmental limitations and have farther communication distance; The 2nd, be designed with the status monitoring circuit, can detect in real time the operating current parameter of power consumption equipment and after the A/D conversion, pass to upper main control computer, in order to carry out state recognition and administration of energy conservation, the triple safe defencive functions such as short-circuit protection, earth leakage protective, overload protection have also been designed; The 3rd, adopt more advanced single-chip microcomputer and integrated circuit technique, only both can realize complicated safeguard protection and intelligent control function with a small amount of components and parts, significantly simplify circuit, reduce cost and improve the reliability of product; The 4th, adopt Modular Structure Design, can be divided into five relatively independent functional circuits such as single chip machine controlling circuit, communication module, current detection circuit, electric-leakage detection circuit, power transfer module or module.Except single chip machine controlling circuit, each functional module is relatively independent, is convenient to carry out customized production for user's request and cost control.

The beneficial effects of the utility model are: smart jack of the present utility model has the not available short-circuit protection of common power socket, earth leakage protective, overload protection function, and has the power line carrier communication network savvy.Under the networking state, can realize the intelligent managements such as Long-distance Control, timing controlled, load power consumption metering, stand-by energy-saving control.The utility model smart jack can be widely used in the fields such as Internet of Things, security monitoring, remote power feeding control, building energy saving management, Smart Home.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic block circuit diagram of the utility model smart jack.

Fig. 2 is the circuit theory diagrams of an embodiment of the utility model smart jack.

Among Fig. 1,1. communication interface modules, 2. power transfer module, 3. single chip machine controlling circuit, the 4. jack body of tape relay, 5. state detection circuit.

Among Fig. 2, M1. line carrier communication interface module, model is KQ130F, and M2.AC-DC power transfer module, model are ZY0JGB05CD, IC1.8 position single-chip microcomputer, model is PIC16F526, and the IC2. Hall current detects integrated circuit, and model is ACS712, ZCT. zero sequence current mutual inductor, J1. smart jack power control relay.

Embodiment

A specific embodiment circuit diagram of this smart jack as shown in Figure 2.Main circuit will be comprised of line carrier communication interface module M1, AC-DC power transfer module M2, single-chip microcomputer IC1, Hall current detection IC2, zero-sequence transformer ZCT and a small amount of discrete component.Whole circuit divides five parts such as can be single chip circuit, communication interface circuit, current detection circuit, electric-leakage detection circuit, power-switching circuit.

IC1 is 8 microminiature single-chip microcomputers of 14 pins, Embedded electrify restoration circuit, RC pierce circuit, 1024 byte FLASH ROM (12 of word lengths), 64 byte FLASH RAM (8 of word lengths), 12 I/O interfaces, two analog comparators and four tunnel eight A/D conversions, chip itself is exactly a multi-functional scm application system.

Single-chip microcomputer IC1 and communication interface modules M1 form serial communication circuit, and the RB5 of IC1, RB4 terminal are arranged to the sending and receiving of serial communication, link to each other with RX, the TX of communication interface modules M1, realize the transfer of data with M1.The RC3 terminal of IC1 is arranged to output control terminal, connects the MODE end of M1, and MODE is the state control end of M1, utilizes the level of RC3 just to control M1 by data transmission or the reception of power line.There is coupled apparatus M1 inside, can directly be attempted by on the 220V AC power by AC1, AC2 terminal.

The A/D converter that single-chip microcomputer IC1 is built-in and Hall current detect IC2 and consist of current detection circuit; the load current of power consumption equipment passes through through IP+, the IP-terminal of IC2 on the socket; Hall element in the IC2 obtains the signal of electric current; and carry out shaping, amplify to process through internal circuit; exported again to the RB0 terminal of IC1 by the OUT terminal of IC2; the RB0 terminal of IC1 is the input of built-in A/D conversion; single-chip microcomputer IC1 realizes overload, short-circuit protection control according to the size of current that detects, and passes to upper main control computer by interface module M1 after the A/D conversion.

The comparator that single-chip microcomputer IC1 is built-in and zero-sequence transformer ZCT consist of electric-leakage detection circuit, ZCT is contactless zero sequence current mutual inductor, when socket and electric leakage occurs for the institute attached device or when having the people to get an electric shock, ZCT produces voltage signal, delivers to IC1 comparator input terminal RC0, RC1 through resistance R 4, R5, in case leakage current surpasses set point, comparator output terminal RC4 sends control signal in IC1, drive the actuating of relay through triode T1, in time cut off the socket power supply, guarantee equipment and Electrical Safety.

M2 is integrated switched power module, and its effect is that the 220V alternating current is become stable 5V DC power supply through a series of conversion, and for circuit, whole circuit adopts single 5V Power supply.

Triode T1 and peripheral element R2, R3, D3 consist of relay J 1 drive circuit.The amplitude of D1, D2 restriction ZCT output signal, the input of protection IC1.C1, C2 are power filtering capacitors, and C3, C4, C5 are used for preventing that high-frequency harmonic from disturbing.

Above-mentioned specific embodiment only is used for illustrating design philosophy of the present utility model and implementation method; not unique and whole embodiment; the components and parts that use in this embodiment circuit also have multiple choices and replacement, allly meet in design philosophy of the present utility model and the intelligent power supply protection range that similar functional circuit all belongs to this patent.

Claims

1. smart jack based on power line carrier communication; mainly by single chip machine controlling circuit; state detection circuit; the line carrier communication interface circuit; the jack body of power-switching circuit and a tape relay forms; it is characterized in that: powered according to load condition and remote instructions control socket by single-chip microcomputer; be designed with state detection circuit; can detect in real time load current and have short-circuit protection; overload protection; creepage protection function; also be designed with the line carrier communication interface circuit, the inner single-chip microcomputer of socket can be by common ac power supply line and long-range main control system connected network communication.

2. a kind of smart jack according to claim 1, it is characterized in that: adopt power line carrier communication to realize long-distance on-line control, the carrier communication interface circuit adopts modularized design, can be respectively and single-chip microcomputer and AC network direct interface, communication interface both can adopt private communication protocol, also can be based on transparent serial communication work.

3. a kind of smart jack according to claim 1; it is characterized in that: be designed with state detection circuit; state detection circuit adopts noncontacting proximity sensor to detect load current and leakage current; cooperate Single-chip Controlling; have short-circuit protection, earth leakage protective, overload protection function; the operating current of all right Real-Time Monitoring power consumption equipment is through passing to upper main control computer after the A/D conversion.

4. a kind of smart jack according to claim 1 is characterized in that: adopt the AC-DC power-switching circuit, convert the 220V alternating current to the 5V DC power supply and be the power supply of this smart jack internal circuit.

5. a kind of smart jack according to claim 1, it is characterized in that: adopt Modular Structure Design, be divided into single chip machine controlling circuit, communication module, current detection circuit, electric-leakage detection circuit, power transfer module, except single chip machine controlling circuit, each functional module is relatively independent.