CN102314154A

CN102314154A - AMS (automatic monitoring system) intelligent control module (with bus network based on integrated switching device)

Info

Publication number: CN102314154A
Application number: CN2010102181408A
Authority: CN
Inventors: 林熙明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2012-01-11

Abstract

The invention relates to an AMS (automatic monitoring system) intelligent control module with a bus network based on an integrated switching device, which mainly comprises a bus transceiver circuit, a relay driving circuit, a key scanning LED (light-emitting diode) display circuit and a CPU (central processing unit) circuit. A communication circuit of the bus transceiver circuit module adopts a two-core twisted pair as a carrier for bus communication. The relay driving circuit is a module control device and is directly connected with a controlled device. The key scanning LED display circuit is a platform for interaction with human beings. The CPU control circuit is a control center for all actions. The terminal control of intelligent furniture can be achieved, and the network control with the weak current controlling the strong current can be realized.

Description

AMS intelligent control module (forming with the bus networking) based on the integrated switch device

Technical field

Patent of the present invention relates to the AMS intelligent control module of forming with the bus networking based on the integrated switch device.

Background technology

Intelligent control module has been widely used in Industry Control and the Smart Home; The intelligent control module that wherein is applied to Smart Home generally adopts the 220V mains-supplied; Owing to want to have added zero line in the module, tend to owing to lack of standardization the causing of wiring gets an electric shock, and then cause accident.And the AMS intelligent control module adopts the mode of Switching Power Supply power supply.Improved safety coefficient greatly.

The patent of invention content

Patent of the present invention is intended to overcome deficiency of the prior art, and a kind of speed and high intelligent control module of safety coefficient that can significantly improve wiring installation is provided.

For achieving the above object, the AMS intelligent control module of forming with the bus networking based on the integrated switch device of patent of the present invention includes bus transmission circuit, relay drive circuit, key scan LED display circuit, CPU governor circuit.It is characterized in that described bus transmission circuit is provided with and receives decoding circuit, sends coding circuit.Described relay drive circuit is provided with current amplification circuit.Described key scan LED display circuit is provided with button inputting circuits and LED lamp drive circuit.Further, described reception decoding circuit is made up of three resistance, an electric capacity, a triode and a not gate.Further, described transmission coding circuit is made up of four resistance, a triode, a diode, not gate of two electric capacity.Further, described current amplification circuit is four resistance, four triodes, four diodes, four relays compositions.Further, described button inputting circuits is made up of five buttons, five electric capacity, ten resistance.Further, described LED lamp drive circuit is made up of five resistance, a red LED, four green LED.Further, described CPU governor circuit is made up of a W78E52 single-chip microcomputer, a crystal oscillator, two electric capacity.

The power supply of the AMS intelligent control module in the patent of the present invention is to adopt the switching type power supply power supply; This power supply has short-circuit protection and buzzer warning; The stability and the safety coefficient of system's operation have been improved greatly; The bus front end is not distinguished the polarity above the twisted-pair feeder when wiring simultaneously, has improved the limitation that wiring is loaded down with trivial details, wiring is complicated when installing greatly.Signal wire in equipment end except normally receiving and send the data; Can also allow equipment on signal wire, to carry out power taking,, need not supply power again in addition as long as to equipment one signal line is provided like this; This equipment just can be worked, and has saved the equipment that power supply is provided separately in addition.Thereby reduced cost.

Description of drawings

Fig. 1 is the circuit theory diagrams of bus transmission circuit of the present invention.

Fig. 2 is the circuit theory diagrams of relay drive circuit of the present invention.

Fig. 3 is the circuit theory diagrams of key scan LED demonstration of the present invention and CPU governor circuit.

Embodiment

See also Fig. 1 to Fig. 3, the relevant circuit diagram of patent of the present invention:

The bus transmission circuit of patent of the present invention, as showing, it has transtation mission circuit and receiving circuit like Fig. 1.Be provided with U2C 74HC14 not gate chip, two electric capacity (C6, C7), four BAV99 diodes (D1, D2, D3, D4), five resistance (R5, R6, R7, R8, R10) in the transtation mission circuit.Be provided with U2C 74HC14 not gate chip, capacitor C 11, three BAV99 diodes (D1, D2, D3), triode Q1, four resistance (R2, R3, R4, R10) in the receiving circuit.

The transtation mission circuit of patent of the present invention; The front end that sends is through a not gate, and this not gate has played an effect that data delay to the transmission of data, again through a pair of coupling capacitance; With the Transistor-Transistor Logic level waveform mode that will send be loaded on the transmission data line; The effect of this mode is on twisted-pair feeder, to transmit after information is amplified again, and the distance that not only makes transmission is source but also be not vulnerable to extraneous interference more, and produces the situation of mess code.

The receiving circuit of patent of the present invention, the front end of reception are managed carrying out the ripple conversion through PNP through a capacitor filtering again; Convert Transistor-Transistor Logic level to and supply with not gate, the effect of rear end not gate is: the one, and, played data buffering; The 2nd, be with data conversion, high level becomes low level, and low level becomes high level; The initial of data is exactly a negative edge like this, just in time supplies the outside negative edge Interrupt Process mode of 51 monolithics.Be convenient to processor and more in time data received processing.

The relay drive circuit of patent of the present invention; Relay drive circuit is that single-chip microcomputer IO mouth is through behind the door non-; The signal negate; Go to drive high power relay work through the control relay circuit of forming by 2N2222 again, add that at the two ends of relay a 1N4148 diode protects down relay work.

The key scan LED display circuit of patent of the present invention, it is to come out to connect a pull-up resistor by single-chip microcomputer IO mouth, controls the on and off of LED lamp through the height of control single chip computer IO.Key scanning circuit is through receiving ground under the button, and the IO mouth draws on itself being.Just know that through the level that reads single-chip microcomputer IO which button is triggered like this.

The CPU governor circuit of patent of the present invention, it is to use the W78E52 single-chip microcomputer, adds the minimum system of the single-chip microcomputer that a 12M crystal oscillator and two 22P electric capacity are constituted.

After adopting patent of the present invention, as long as intelligence control system is connected with the mains and intelligent control module, just can opertaing device.Mutual communication distance between the equipment reaches 1000 meters far away.

Claims

1. an AMS intelligent control module of forming with the bus networking based on the integrated switch device includes bus transmission circuit, relay drive circuit, key scan LED display circuit, CPU governor circuit.Described bus transmission circuit has bus and receives decoding scheme and bus transmission coding circuit.Described relay drive circuit is disconnection and the closure that the principle of employing electric current amplification removes to drive high power relay.Described key scan and LED display circuit are the mutual platforms of module and people, adopt button input and LED to show output.Described CPU governor circuit is the control center that module produces everything.

2. AMS intelligent control module as claimed in claim 1 is characterized in that: described bus transmission circuit is with two core twisted-pair feeder carriers, carries out transmission and the reception of signal on general line.

3. AMS intelligent control module as claimed in claim 1 is characterized in that: described relay drive circuit be triode driving circuit control high power relay disconnection and close the border.

4. AMS intelligent control module as claimed in claim 1 is characterized in that: the described key scanning that connects is to use the direct scan mode of single-chip microcomputer IO.

5. AMS intelligent control module as claimed in claim 1 is characterized in that: described LED display circuit is to adopt the IO mouth of single-chip microcomputer directly to connect to draw the LED lamp to show.

6. AMS intelligent control module as claimed in claim 1 is characterized in that: described CPU governor circuit is to adopt the W78E52BP single-chip microcomputer to make primary controller.