CN202472400U

CN202472400U - Intelligent home control system

Info

Publication number: CN202472400U
Application number: CN2012201095700U
Authority: CN
Inventors: 郑魏平
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-10-03
Anticipated expiration: 2022-03-21

Abstract

The utility model discloses an intelligent home control system. The intelligent home control system comprises a master control machine, multiple slave nodes respectively arranged in power sockets on home walls, and a GSM (Global System for Mobile Communications) module matched with a mobile phone of a user. The master control machine and the slave nodes form a wireless network through n RF24L01P wireless modules, the slave nodes control a power output state of the power sockets through a relay, and the GSM module and the mobile phone of the user are in power output state interaction through a short message. The intelligent home control system uses n RF24l01P radio frequency chips, has the advantages of small volume, low power consumption, strong anti-interference performance, low cost and the like, and can be placed in a normal 86 box-type socket and powered by batteries, so that ordinary families can enjoy the convenience brought by the intelligent home without relatively large cost and remaking.

Description

Intelligent home control system

Technical field

The utility model relates to Smart Home, is specifically related to intelligent home control system.

Background technology

Smart Home is claimed intelligent dwelling again; It has has merged automated control technology, computer networking technology and the network communications technology network-enabled intelligent house control system in one; It is integrated to utilize comprehensive wiring technology, the network communications technology, security precautions technology, automatic control technology, audio frequency and video technology that the equipment relevant with life staying idle at home is carried out, thereby brings farthest efficient, convenient, comfortable and safety to the user.

Popular Smart Home technical protocol mainly contains RS232/485 serial communication technology, PLC technology, wireless radio-frequency etc. at present; Above-mentioned various technology all has its corresponding relative merits, is that the location is higher on the whole, the crowd that customer group improves grade in being; And these crowds are minority after all; Therefore, be badly in need of wanting a kind of intelligent home control system cheaply, let Smart Home get into more common people family.

In addition, present intelligent home control system generally adopts IP network to realize Long-distance Control, because the broadband of existing family also is not very stable, will cause control system malfunctioning if the situation of outage or suspension occurs.Have, existing intelligent home control system perhaps adopts wired networking mode or adopts wireless mode networking, the advantage of wired networking mode is to connect to stablize again; Message exchange speed and efficient are high; But need to arrange private cable, the wiring trouble, the installation and maintenance cost is high; Increase and decrease equipment needs rewiring, mobility difference and influence attractive in appearance.Though in the wire transmission at present, PLC (power carrier communication) technology is quite ripe, cost of development still is higher.In the mode in wireless transmission, comprise 315MHz unlicensed band, Bluetooth technology and ZigBee technology, wherein the communication of 315MHz unlicensed band is subject to disturb, and Bluetooth technology and ZigBee technical costs are high, and protocol overhead is big.Therefore, the networking mode of existing intelligent home control system, the wiring trouble, the installation and maintenance cost is high, and mobility is poor, and cost is higher.

The utility model content

The utility model technical matters to be solved is that to solve the intelligent home control system cost higher, and stability is not high, the problem of the transformation that is not easy to old room.

In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted provides a kind of intelligent home control system; Comprise a main control computer and a plurality of be built in respectively in the household wall power sockets from node and with the gsm module of user mobile phone coupling; Said main control computer is set up into wireless network from node through the nRF24L01P wireless module with said; Said from the power supply output state of node through the power source for relay control socket, pass through the mutual said power supply output state of short message between said gsm module and the said user mobile phone.

In the such scheme, said main control computer and saidly all adopt the STC89C52RC single-chip microcomputer as control chip from node, and connect said nRF24L01P wireless module respectively through I/O mouth simulation SPI interface.

In the such scheme, said I/O interface from node is connected with pull-up resistor, and said pull-up resistor connects said relay.

In the such scheme, said gsm module adopts the SIM300 module of simcom company.

The utility model; Adopt the nRF24l01P radio frequency chip; It is little to have volume, and low-power consumption, advantage such as antijamming capability is strong and cost is low can be put in the 86 common box sockets; And can adopt powered battery, let average family need not to spend to have much expense just can experience convenient that Smart Home brings with transforming.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the interface synoptic diagram of nRF24L01P in the utility model;

Fig. 3 is the operating process of nRF24L01P in the utility model;

Fig. 4 is the communication process of SIM300 module and single-chip microcomputer in the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is made detailed explanation.

As shown in Figure 1, the utility model comprise a main control computer and a plurality of be built in respectively in the household wall power sockets from node and with the gsm module of user mobile phone coupling.

What gsm module adopted is the SIM300 module of simcom company; The SIM300 module is widely used in fields such as wireless data transmission such as mobile phone, PDA; It is the double frequency GSM/GPRS module solution that adopts the 60Pin connector for substrate; Have industrial standardization interface and low in energy consumption, can pass through GSM/GPRS 850/900/1800/1900MHz communication network transferring voice, note, data and fax.In addition, interface is simple on the hardware, does not need complicated peripheral circuit; As long as understand the serial ports transmission on the software; Just can operate with reference to AT instruction, the advantage of comparing maximum with TC35, MC35 module be exactly it be the GPRS module of embedded ICP/IP protocol, can connect the exploitation that internet carries out GPRS.

Main control computer and all adopt the STC89C52RC single-chip microcomputer as control chip from node, and carry out data interaction to set up wireless network through the 2.4GHz wireless module nRF24L01P (radio-frequency receiving-transmitting device) of Norway NORDIC company.NRF24L01P is a high performance 2.4G radio receiving transmitting module, adopts the GFSK modulation, is operated in the international ISM band of 2400-2483M; High modulation speed can reach 2MBPS; And energy consumption is very low, the peak point current 11mA when 0dBm exports under 2Mbit/s speed, the power consumption 400nA under the power-down mode; Power consumption 32uA under the standby mode has quick switching and the wakeup time of 130us.Simultaneously nRF24L01P is integrated all and the protocol-dependent high speed signal of RF processing section, as: retransmits lost packet and generation answer signal automatically etc. automatically.In addition, nRF24L01P is the SPI interface device, and the SPI interface on it can utilize the hardware SPI mouth of single-chip microcomputer to connect or simulate with the I/O mouth of single-chip microcomputer, inside have FIFO can with various high low speed MPIs, low-cost monolithic machine easy to use.The interface of nRF24L01P is as shown in Figure 2; CE is that the pattern control end is connected with the P15 of STC89C52RC single-chip microcomputer; CSN is that sheet choosing end (low level is effective) is connected with the P17 of STC89C52RC single-chip microcomputer, and SCK is connected with the P16 of STC89C52RC single-chip microcomputer for control clock line (SPI clock), and MOSI is that the master goes out to be connected with P32 from going into data line; MISO is that the master goes into to be connected with the P12 of STC89C52RC single-chip microcomputer from going out data line, and IRQ is that look-at-me is connected with the P13 of STC89C52RC single-chip microcomputer.

In the present embodiment, main control computer connects main control computer nRF24L01P through I/O mouth simulation SPI interface, from node also through I/O mouth simulation SPI interface be connected from node nRF24L01P, thereby the wireless network of formation hub-and-spoke configuration.The main control computer reception is handled the data that respectively send over from node and is also passed through wireless network control respectively from node; Main control computer also links to each other with GTX, GRX and the GND of SIM300 module with GND through I/O mouth P30, P31 simultaneously; User's note control interface through the SIM300 module provides is realized user's Long-distance Control; Main control computer receives from the data of gsm module and handles, and passes through gsm module to feedback information the information notification user then.Make the user in time understand the real-time status of controlled device.For example, the user can send SMS message through mobile phone, controls the switch of some electrical appliances; Can be through the state of some or all electrical appliances of SMS query; And, when can send on the user mobile phone through short message when unusual appears in some electrical appliances.

Concrete implementation is: the SIM300 module receives instruction and outside output data through data port with serial mode, the Rx on the single-chip microcomputer, Tx and GND respectively with the SIM300 module on Tx, Rx links to each other with GND, specifically the mutual communication flow process is as shown in Figure 4.

The utility model with the main control computer is the center, and is simple in structure, and management and control are convenient, and the network delay time is short, and data transmission error is low, good reliability.

Be provided with pull-up resistor from the I/O mouth of node, pull-up resistor connects relay, and to guarantee having enough electric currents to drive relay, relay is used to control the on/off of household wall power sockets, thereby controls corresponding electrical appliance.

The selectable transceiver mode of nRF24L01P has ShockBurst transceiver mode, enhancement mode ShockBurst transceiver mode and direct transceiver mode.What adopt in the present embodiment is enhancement mode ShockBurst transceiver mode; NRF24L01P uses embedded bi-directional chaining agreement under this pattern; Automatically generate lead code and CRC check sign indicating number and wait acknowledge signal during transmission, checking data and send answer signal when receiving data is as if loss of data; Transmitting terminal does not receive answer signal, then through retransmitting function data is recovered.

The concrete operating process of nRF24L01P is as shown in Figure 3, before nRF24L01P is carried out read-write operation, should earlier the nRF24L01P pattern be changed to standby mode, just can operate nRF24L01P through the SPI mouth then.

The utlity model has following advantage:

1, utilize the nRF24L01P radio frequency chip to carry out networking, have low-power consumption, advantage meets the requirement of current social energy-saving and emission-reduction cheaply;

2, less from the node volume, can place it in the 86 electric boxes, under prerequisite cheaply, be convenient to common household transformation and become Smart Home, need not other laying-out and replacing does not have line socket.Past heritage are transformed, and meet the main flow of environmental protection.

3, the equipment set cost is low, and the cost of main control computer is less than 150 yuan, from the cost of node node be lower than especially 50 yuan/individual.

The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technical scheme, all fall within the protection domain of the utility model.

Claims

1. intelligent home control system; Comprise a main control computer and a plurality of be built in respectively in the household wall power sockets from node; It is characterized in that, comprise also and the gsm module of user mobile phone coupling that said main control computer is set up into wireless network from node through the nRF24L01P wireless module with said; Said from the power supply output state of node through the power source for relay control socket, pass through the mutual said power supply output state of short message between said gsm module and the said user mobile phone.

2. intelligent home control system as claimed in claim 1 is characterized in that, said main control computer and saidly all adopt the STC89C52RC single-chip microcomputer as control chip from node, and connect said nRF24L01P wireless module respectively through I/O mouth simulation SPI interface.

3. intelligent home control system as claimed in claim 1 is characterized in that, said I/O interface from node is connected with pull-up resistor, and said pull-up resistor connects said relay.

4. intelligent home control system as claimed in claim 1 is characterized in that, said gsm module adopts the SIM300 module of simcom company.