CN203151561U

CN203151561U - Network remote-control switch

Info

Publication number: CN203151561U
Application number: CN 201320175688
Authority: CN
Inventors: 周文良; 王文涛; 王秀艳; 温长泽; 周志豪
Original assignee: Changchun Institute Technology
Current assignee: Changchun Institute of Applied Chemistry of CAS; Changchun Institute Technology
Priority date: 2013-04-10
Filing date: 2013-04-10
Publication date: 2013-08-21
Anticipated expiration: 2023-04-10

Abstract

The utility model discloses a network remote-control switch, wherein the parallel port of a single chip is connected with the input end of a latch; the address latch pin of the single chip is connected with the latch enable end of the latch; the output end of the latch is connected with the address pin of a storage, and used for providing the low-order address of the storage; the parallel port of the single chip is connected with the address pin of the storage, and used for providing the high-order address of the storage; the parallel port of the single chip is connected with the data port of the storage to form a data path; the chip selection pin of the single chip is connected with the chip selection signal of the storage, so as to realize selection for the storage; and the read pin and the write pin of the single chip are connected with the read pin and the write pin of the storage respectively. With the adoption of the network remote-control switch, the problem of geographically-dispersed remote use for electric equipment or electric appliances is solved; and according to the network remote-control switch disclosed by the utility model, a network access mode of taking a cheap single chip as a core controller, and using a network interface chip simultaneously is adopted, and a plurality of groups of control switches are matched, so that the timing switches of a plurality of electric equipment or electric appliances can be controlled simultaneously.

Description

A kind of network remote control switch

Technical field

The utility model relates to a kind of network remote control switch, is that a kind of many group relaies that carry out Long-distance Control by computer network are realized being switched on or switched off of power consumption equipment or electrical appliance belonged to communication.

Background technology

Along with information technology and development of Communication Technique, usually use RS-232, RS-485 universal serial bus, CAN bus and I ²Exchanges data or control between bus realization systems such as C.Yet the interconnected mode of this bus communicates or control can be subjected to the restriction of transmission range, and the communication protocol of its communication protocol and Internet is again incompatible.At present, along with the develop rapidly of computer network with popularize, if computer network is incorporated into system, can realize information exchange or the control of remote cross-region.

Summary of the invention

The utility model discloses a kind of network remote control switch, namely utilizes the characteristics of computer network, has realized the remote switch control to power consumption equipment or electrical appliance.

The utility model discloses a kind of network remote control switch, and its technical solution is as follows: mainly be made of network interface, memory, single-chip microcomputer, serial line interface and N relay in parallel, wherein, the single-chip microcomputer parallel port links to each other with the latch input; The address latch pin of single-chip microcomputer links to each other with the latch enable end of latch; The output of latch links to each other with the address pin of memory, and the low order address of reference to storage is provided; The single-chip microcomputer parallel port links to each other with the address pin of memory, and the high address of reference to storage is provided; The parallel port of single-chip microcomputer is connected with the FPDP of memory, the composition data path; The sheet of single-chip microcomputer selects pin to link to each other with the chip selection signal of memory, realizes the selection to memory; The read and write pin of single-chip microcomputer links to each other with the read and write of memory respectively.

The utility model has been realized the tcp/ip communication based on 8 single-chip microcomputers, makes monolithic processor controlled system have network access functions, can use PC to carry out switching on and off of remote access, control single chip computer system realization electrical appliance by network like this.

Single-chip microcomputer of the present utility model+network interface chip is realized that telecommunication network inserts, again by the closure of single-chip microcomputer+relay control switch.Load ICP/IP protocol control network interface chip by single-chip microcomputer and carry out transfer of data, thereby realize communicating with Ethernet.Single-chip microcomputer drives the corresponding actuating of relay according to the network control signal that receives by parallel port, realizes the connecting and disconnecting of electrical appliance.

The utility model can be controlled a plurality of power consumption equipments or the electrical appliance of far-end by computer network, and the control system structured flowchart is connected being switched on or switched off that any terminal on the network all can the steer distal end electrical appliance as shown in Figure 1.Present networks switch simple, convenient and practical, and can realize the switch control of a plurality of electrical appliances.

Good effect of the present utility model is:Solved the problem of power consumption equipment or the long-range use of electrical appliance cross-region.Having adopted with cheap single-chip microcomputer is the network access mode of core controller+network interface chip, is furnished with many group control switchs, can control the timing switch of a plurality of power consumption equipments or electrical appliance simultaneously.It is low to have cost, easy and simple to handle, the practicality advantages of higher.In addition, the present networks switch also is furnished with serial communication interface, can upgrade control program by it, to promote its control mode and ability.

Description of drawings

Fig. 1 is the utility model control system structured flowchart;

Fig. 2 is the utility model circuit theory diagrams.

Embodiment

Concrete enforcement part is seen shown in Figure 2, and 8 parallel-by-bit port P0 of single-chip microcomputer (AT89S52) link to each other with 8 input 1D～8D of eight D-latchs (573); The address latch pin ALE of single-chip microcomputer (AT89S52) links to each other with the latch enable end G of eight D-latchs (573), when G=1, finishes latching of least-significant byte address.8 output 1Q～8Q of eight D-latchs (573) link to each other with the address pin A7～A0 of memory (62256), and the least-significant byte address of reference to storage is provided; P2.6～the P2.0 of single-chip microcomputer (AT89S52) P2 parallel port links to each other with the address pin A14～A8 of memory (62256), and the high address of reference to storage is provided; The P0 port of single-chip microcomputer (AT89S52) is connected with the D7～D0 of memory (62256), constitutes 8 data path; The P2.7 pin of single-chip microcomputer (AT89S52) and memory (62256) chip selection signal

Link to each other, realize the selection to memory (62256); The read and write pin P3.7 of single-chip microcomputer (AT89S52) and P3.6 respectively with the reading of memory (62256) (

) and write (

) link to each other, realize the read-write to memory (62256).

The AEN pin of network interface (RTL8109) allows Enable Pin for the I/O port operation, and AEN is connected with the P3.2 of single-chip microcomputer (AT89S52), and when AEN=0, RTL8109 can be operated; IORB, IOWB are the read-write control pin of RTL8109, are connected with P3.6 (WR) with the P3.7 (RD) of single-chip microcomputer (AT89S52) respectively, when the IORB=0(low level) time, RTL8109 register read state starts.When the IOWB=0(low level) time, the RTL8109 register is write state and is started; The RSTDRV pin of RTL8109 is connected with the P3.3 pin of single-chip microcomputer (AT89S52), when the RSTDRV=1(high level) time, RTL8109 is restarted; Data/address bus SD7～SD0 of RTL8109 links to each other with the P0 mouth of single-chip microcomputer (AT89S52), is used for the data of read-write RTL8109.Address choice pin SA4～SA0 of RTL8109 links to each other with the P0.4～P0.0 of single-chip microcomputer (AT89S52).The transmission signal end HD of RTL8109 links to each other with OUT-with the OUT+ of isolating transformer (20F001NG) respectively with LD; The reception signal end TPIN+ of RTL8109 links to each other with IN-with the IN+ of isolating transformer (20F001NG) respectively with TPIN-.The transmission signal end TX+ of isolating transformer (20F001NG) links to each other with TX-with the transmitting terminal TX+ of RJ45 interface respectively with TX-; The reception signal end RX+ of isolating transformer (20F001NG) links to each other with RX-with the signal receiving end RX+ of RJ45 interface respectively with RX-.

The control end of 8 relays (relay 1～relay 8) is received the P1.0～P1.7 pin of single-chip microcomputer (AT89S52) P1 parallel port respectively, when arbitrary pin P1.X=0 (low level), by power driving circuit, make the relay contact adhesive, i.e. switch connection.Otherwise, relay contact is discharged, namely switch disconnects.

Serial line interface receives pin P3.0 and serial signal transmission pin P3.1 by the serial signal that devices such as level conversion are connected to single-chip microcomputer (AT89S52).

In Fig. 2, the RJ45 interface of the relay of utility model is connected on the local network computer or router, power consumption equipment or electrical appliance are connected on the relay contact corresponding wiring terminal; Far-end at network arranges corresponding IP address, and start the network switching control program, and the electrical appliance that selection will start or stop, control signal is passed to network switching by network, the corresponding actuating of relay of core Single-chip Controlling on it, thus the realization network remote is controlled a plurality of electrical appliances.Upgrade as carrying out control program, serial line interface can be connected on the RS-232 interface of PC, upgrade by the control program of updating software to the core control single chip computer.

Claims

1. a network remote control switch is characterized in that mainly being made of network interface, memory, single-chip microcomputer, serial line interface and N relay in parallel, and wherein the single-chip microcomputer parallel port links to each other with the latch input; The address latch pin of single-chip microcomputer links to each other with the latch enable end of latch; The output of latch links to each other with the address pin of memory, and the low order address of reference to storage is provided; The single-chip microcomputer parallel port links to each other with the address pin of memory, and the high address of reference to storage is provided; The parallel port of single-chip microcomputer is connected with the FPDP of memory, the composition data path; The sheet of single-chip microcomputer selects pin to link to each other with the chip selection signal of memory, realizes the selection to memory; The read and write pin of single-chip microcomputer links to each other with the read and write of memory respectively.