CN101572728A

CN101572728A - General-purpose interface control device based on WSN technical platform

Info

Publication number: CN101572728A
Application number: CNA2008100368094A
Authority: CN
Inventors: 申鸣
Original assignee: GUOHAO ELECTRONIC CO Ltd SHANGHAI
Current assignee: GUOHAO ELECTRONIC CO Ltd SHANGHAI
Priority date: 2008-04-29
Filing date: 2008-04-29
Publication date: 2009-11-04

Abstract

The invention relates to a device for controlling a general-purpose serial interface in a wireless mode, in particular to a general-purpose interface control device which adopts a wireless communication protocol, such as IEEE802.15.4, Zigbee, MIWI, and the like and directly supplies power from a serial port of external control equipment. The general-purpose interface control device comprises an RF receiving and transmitting module, a serial port drive module, a serial port power supply module, and the like. The general-purpose interface control device has the control characteristics of no need of wiring, utilization during plugging, wireless communication, point-to-point and point-to-multipoint, and not only has the flexibility of wireless control, but also follows the reliability of wire control.

Description

Universal interface control device based on the WSN technology platform

Technical field

The present invention relates to the device of a kind of wireless mode control USB (universal serial bus), be meant a kind of employings IEEE802.15.4, wireless communication protocols such as Zigbee, MIWI especially, and the universal interface control device of direct power taking from the external control devices serial ports.

Background technology

The consumer electronics home appliance, usually adopt Infrared remote controller and panel button control mode, along with the upgrading of home appliance and the raising of digitized degree, on market, the home appliance of band standard universal interface, has been no lack of minority, as projector, LCD flat panel television set, DVD player, audio frequency power amplifier, DVR, video/audio matrix, DMX lighting apparatus etc.

Home appliance built-in general-purpose interface (as RS232 or USB etc.), its purpose is for improving the reliability (comparing with infrared control) of Control on Communication, improve the detection efficiency (as Performance Detection and management such as automatic enforcement electricity, light, sound) of production line, and the online upgrading etc. of being convenient to device program.

Obviously, the kind of the home appliance of above-mentioned band general-purpose interface and quantity just constantly enlarge, and is irreversible.

Therefore, for satisfying the home appliance of band general-purpose interface, the application demand at aspects such as its use, production and upgradings provides a kind of easy to use, and is with low cost, and the easy-to-install application apparatus just seems very necessary.

Summary of the invention

Based on the demand, the invention provides a kind of wireless protocols such as IEEE802.15.4, Zigbee, MIWI that both met, again need not built-in power, the wave point control device of plug and play.

In order to achieve the above object, the present invention adopts following technical scheme, comprising:

At least one is with WSN technical protocol and the extraneous RF transceiver module 10 that carries out radio communication;

At least one and described RF transceiver module 10, by the universal serial port driver module 20 that general-purpose interface 201 connects, it is connected with the extraneous electric equipment of controlling based on universal serial port through driving output interface 202;

At least one need not built-in power, and through the external world based on the rs 232 serial interface signal terminal 203 of the electric equipment of universal serial port control, directly power taking and treated serial ports electricity-fetching module 30; And implement power supply to described RF transceiver module 10, serial port drive module 20 respectively through power line 301,302.

Wherein, with WSN technical protocol and the extraneous RF transceiver module 10 that carries out radio communication, adopt integrated SOC (system on a chip) (SOC) based on IEEE802.15.4 agreement, Zigbee agreement, MIWI agreement.

Serial port drive module 20 is one or more combinations of standard interfaces such as RS232, USB, RS485, RS422.

One or more from the standard serial port signal terminal of serial ports electricity-fetching module 30, its power taking.

Adopt the detachable module of plug and play.

The present invention compared with prior art has and need not connect up, plug and play, radio communication, the controlling features of point-to-point, point-to-multipoint; Not only have both the flexibility of controlled in wireless, but also followed the reliability that line traffic control is arranged.

Description of drawings

Accompanying drawing 1 is a schematic diagram of the present invention

Embodiment

See also accompanying drawing 1, the embodiment of the invention, the LCD LCD TV that has general-purpose interface (RS232) with controlled in wireless is an example, describes.

In the present embodiment, comprising:

One with WSN technical protocol and the extraneous RF transceiver module 10 that carries out radio communication; By general-purpose interface line 201, be connected with universal serial port driver module 20, it drives through driving output interface line 202, is connected with the LCD LCD TV of external world's band universal serial port control; Serial ports electricity-fetching module 30 as power supply unit, through rs 232 serial interface signal lead-in 203, from universal serial port driver module 20, will be from the holding wire in the serial line interface of external LCD LCD TV, introduce in the serial ports electricity-fetching module 30, realize by after the serial ports power taking,, implement power supply to RF transceiver module 10, serial port drive module 20 respectively through power line 301,302 again by filtering, rectification, voltage transitions.

Wherein, RF transceiver module 10 by the RF antenna, receives the radio communication order from the outside, and its communication transceiver adopts the integrated SOC (system on a chip) (SOC) based on IEEE802.15.4 agreement, Zigbee agreement, MIWI agreement.In the present embodiment, select the CC2430 transceiver of Norway Chipcon company for use, it satisfies operating frequency: 2.4～2.4835GHz, adopt unbalanced type RF antenna, data rate reaches 250kbps, and power output control able to programme reaches-91dbm, built-in 8031 kernels, have double-H groove weld SART serial line interface, have park mode and the characteristic that is transformed into the ultrashort time of aggressive mode, be particularly suitable for the applied environment demand of super low-power consumption.

By to the set of CC2430 special register, as register UxBAUND.BAUD_M is put 59, UXGCR_BAUD.BAUN_M puts 8 to register, can realize that then baud rate is 9600 initial setting up, this also be the LCD LCD TV (as: the LCD-37BX6 series of Japanese SHARP company, communication format is 9600BPS, N, 8,1) the desired traffic rate of RS232.By driven in series module 20, with the physical level form that the USART level conversion becomes RS232 to require, conversion is adopted the MAX3232 chip for driving with chip.

Serial ports electricity-fetching module 30, by power taking line 203, through driven in series module 20, will be from power taking in the RS232 interface special terminal of external LCD LCD TV, as TXD terminal power taking from the RS232 serial ports, simultaneously from RTS and DTR as auxiliary power supply because in the RS232 standard, the physical level of control lines such as its RTS, CTS, DSR, DTR and DCD must satisfy:

(connect ON state, positive voltage) when signal is effective=+ 3V～+ 15V;

(disconnect OFF state, negative voltage) during invalidating signal=-3V～-15V.

In the present embodiment, serial ports electricity-fetching module 30, by the energy that the serial ports terminal obtains, after capacitor filtering and level conversion (as converting 3.3V to by 7803SR), through power line 301, the CC2430 transceiver in RF Transmit-Receive Unit 10 provides power supply; In addition through power line 302, MAX3221 serial ports transceiver in serial port drive module 20 provides power supply, like this, can realize need not built-in power, as long as link to each other with the serial line interface of controlled device (as the LCD LCD TV), just can reach purpose, thereby realize the practical function of the plug and play of apparatus of the present invention by the external equipment power taking.

The above; be a kind of of the embodiment of the invention; but be not to be used for limiting practical range of the present invention, promptly every according to patent of the present invention---the equalization that the described feature of claims, structure, spirit are done changes and modification, all belongs to protection scope of the present invention.

Claims

1. based on the universal interface control device of WSN technology platform, it is characterized in that, comprising:

At least one is with WSN technical protocol and the extraneous RF transceiver module (10) that carries out radio communication;

At least one and described RF transceiver module (10), by the universal serial port driver module (20) that general-purpose interface (201) connects, it is connected with the extraneous electric equipment of controlling based on universal serial port through driving output interface (202);

At least one need not built-in power, and through the external world based on the rs 232 serial interface signal terminal (203) of the electric equipment of universal serial port control, directly power taking and treated serial ports electricity-fetching module (30); And implement power supply to described RF transceiver module (10), serial port drive module (20) respectively through power line (301), (302).

2. the universal interface control device based on the WSN technology platform according to claim 1, it is characterized in that: based on the universal interface control device of WSN technology platform, wherein said with WSN technical protocol and the extraneous RF transceiver module (10) that carries out radio communication, adopt integrated SOC (system on a chip) (SOC) based on IEEE802.15.4 agreement, Zigbee agreement, MIWI agreement.

3. the universal interface control device based on the WSN technology platform according to claim 1, it is characterized in that: based on the universal interface control device of WSN technology platform, wherein said serial port drive module (20) is the one or more combination of standard interfaces such as RS232, USB, RS485, RS422.

4. the universal interface control device based on the WSN technology platform according to claim 1, it is characterized in that: based on the universal interface control device of WSN technology platform, one or more from the standard serial port signal terminal of wherein said serial ports electricity-fetching module (30), its power taking.

5. the universal interface control device based on the WSN technology platform according to claim 1 is characterized in that: the detachable module that adopts plug and play.