CN202002260U

CN202002260U - Centralized control switching circuit with wireless transceiving function for network air conditioner

Info

Publication number: CN202002260U
Application number: CN2010206600073U
Authority: CN
Inventors: 罗高诚; 李昱; 罗玮; 肖赫
Original assignee: FOSHAN ZHONGEWEI ELECTRONIC Co Ltd
Current assignee: FOSHAN ZHONGEWEI ELECTRONIC Co Ltd
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2011-10-05
Anticipated expiration: 2020-12-14

Abstract

The utility model provides a centralized control switching circuit with a wireless transceiving function for a network air conditioner, which comprises a single chip microcomputer circuit, a registered jack 45 (RJ 45) network interface circuit, a radio frequency (RF) wireless communication module circuit, a 485 serial communication circuit, a reset circuit, a display circuit and a power circuit, wherein the power circuit is connected with the single chip microcomputer circuit, the RJ 45 network interface circuit, the RF wireless communication module circuit, the 485 serial communication circuit, the reset circuit and the display circuit respectively, and the reset circuit and the display circuit are connected with the single chip microcomputer circuit respectively. The scheme realizes a wireless centralized control of the network air conditioner due to a combination of the transceiving function of a wireless communication circuit and the single chip microcomputer circuit. In addition, arrangement of wires for circuits are not needed, construction period is short, adaptability is good, expandability is good, capacity of disturbance resisting is great, transmission rate is high and the like.

Description

A kind of network air-conditioner collection control change-over circuit with radio transmission-receiving function

Technical field:

The utility model relates to the air conditioner controlling technology field, refers in particular to a kind of network air-conditioner collection control change-over circuit with radio transmission-receiving function.

Background technology:

Present air-conditioning centralized control system scheme generally mostly is to adopt the mode of RS485 bus communication, the advantage of this scheme is that data transmit-receive is highly sensitive, communication distance is far away, antijamming capability is strong, the support node number is bigger etc., but shortcoming is that the workload of line construction is big, the difficulty height, the construction cost height, equipment needs fixed location, line failure rate height.

Summary of the invention:

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of have need not that line layout, short construction period, adaptability are strong, favorable expandability, antijamming capability is strong, transfer rate is high network air-conditioner collection control change-over circuit.

For achieving the above object, technical scheme provided by the utility model is: a kind of network air-conditioner collection control change-over circuit with radio transmission-receiving function, it includes single chip circuit, RJ45 network interface circuit, RF wireless communication module circuit, 485 serial communication circuits, reset circuit, display circuit, power circuit, wherein, power circuit is connected with single chip circuit, RJ45 network interface circuit, RF wireless communication module circuit, 485 serial communication circuits, reset circuit, display circuit respectively; Reset circuit, display circuit are connected with single chip circuit respectively; First, second, third, fourth transmitting-receiving port in the single chip circuit is connected with first, second, third, fourth network interface of RJ45 network interface circuit respectively; The 5th transmitting-receiving port in the single chip circuit is connected with the FPDP of RF wireless communication module circuit; First, second transmitting-receiving COM1 of 485 serial communication circuits is connected with first, second asynchronous communication mouth of single chip circuit.

The utility model is after having adopted such scheme, adopt radio communication circuit to replace RS485 communication, the network air-conditioner control signal is sent into network interface after the network transmission, after network data transmitting-receiving and master control processing circuit processes, reach in the radio communication circuit, radio communication circuit is launched through antenna after with data signal modulation again, after the wireless communication module of network air-conditioner terminal receives wireless data signal, be decoded into the air-conditioning control instruction, air-conditioning is according to instruction operation; Air-conditioning feeds back to radio communication circuit with running status in operation, after radio communication circuit receives the status information of network air-conditioner terminal, by network interface data are sent to the internet again after delivering to network data transmitting-receiving and master control processing circuit processes, monitoring computer shows air-conditioning information after transmitting by internet network again, has realized the wireless centralized Control of network air-conditioner.Utilize the radio transmission-receiving function and the single chip circuit combination of radio communication circuit, realized the wireless centralized Control of network air-conditioner, and need not line layout, short construction period, adaptability is strong, favorable expandability, antijamming capability is strong, good characteristics such as transfer rate height.

Description of drawings:

Fig. 1 is conversion system architecture figure of the present utility model.

Fig. 2 is control principle figure of the present utility model.

Fig. 3 is a circuit diagram of the present utility model.

The specific embodiment:

The utility model is described in further detail below in conjunction with institute's drawings attached, preferred embodiment of the present utility model is: the described network air-conditioner collection of present embodiment control change-over circuit includes single chip circuit 1, RJ45 network interface circuit 2, RF wireless communication module circuit 3,485 serial communication circuits 4, reset circuit 5, display circuit 6, power circuit 7, wherein, power circuit 7 is connected with single chip circuit 1, RJ45 network interface circuit 2, RF wireless communication module circuit 3,485 serial communication circuits 4, reset circuit 5, display circuit 6 respectively, for it provides working power.Reset circuit 5, display circuit 6 are connected with single chip circuit 1 respectively; Wherein, reset circuit 5 provides reset signal to single-chip microcomputer; Display circuit 6 display network air-conditioning access states and RJ45 network interface duty.First, second, third, fourth transmitting-receiving port TPOUT+ in the single chip circuit 1, TPOUT-, TPIN+, TPIN-are connected with first, second, third, fourth network interface TD+, TD-, RD+, the RD-of RJ45 network interface circuit 2 respectively; The 5th transmitting-receiving port SPI in the single chip circuit 1 is connected with the FPDP of RF wireless communication module circuit 3; First, second transmitting-receiving COM1 DI, the RO of 485 serial communication circuits 4 are connected with first, second asynchronous communication mouth TX1, the RX1 of single chip circuit 1.Single chip circuit 1 master chip is integrated microprocessor and ethernet feature, support the Internet communication protocol, RJ45 network interface circuit 2 receives the network data input of sending into single-chip microcomputer after the network data, after the chip internal processing of circuit, transfer of data is arrived RF wireless communication module circuit 3 by the transmitting-receiving of the 5th in the single chip circuit 1 port SPI, RF wireless communication module circuit 3 modulates the signal to the 433M frequency, launches after power amplification again; 485 serial communication circuits 4 are used for importing MAC Address and air-conditioning sequence number, for example: the network air-conditioner monitoring computer sends start-up command, these data are transferred in the RJ45 network interface circuit 2 by the Internet wire, behind the network transformer isolated variable, send into the ethernet circuit input of single chip circuit 1, handle the back by internal circuit again and deliver to RF wireless communication module circuit 3 from the 5th transmitting-receiving port SPI in the single chip circuit 1, RF wireless communication module circuit 3 amplifies the back with the signal modulation and exports by radio frequency; Simultaneously, make RF wireless communication module circuit 3 be in accepting state by the software setting, to send into single chip circuit 1 by the 5th transmitting-receiving port SPI behind the less radio-frequency demodulated data signal of air-conditioning status information, ethernet circuit in single chip circuit 1 is delivered to RJ45 network interface circuit 2 after handling, be transmitted via Internet to monitoring computer, monitoring computer shows the air-conditioning work status information.

The embodiment of the above is the preferred embodiment of the utility model only, is not to limit practical range of the present utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection domain of the present utility model.

Claims

1. network air-conditioner collection control change-over circuit with radio transmission-receiving function, it is characterized in that: it includes single chip circuit (1), RJ45 network interface circuit (2), RF wireless communication module circuit (3), 485 serial communication circuits (4), reset circuit (5), display circuit (6), power circuit (7), wherein, power circuit (7) is connected with single chip circuit (1), RJ45 network interface circuit (2), RF wireless communication module circuit (3), 485 serial communication circuits (4), reset circuit (5), display circuit (6) respectively; Reset circuit (5), display circuit (6) are connected with single chip circuit (1) respectively; First, second, third, fourth transmitting-receiving port (TPOUT+, TPOUT-, TPIN+, TPIN-) in the single chip circuit (1) is connected with first, second, third, fourth network interface (TD+, TD-, RD+, RD-) of RJ45 network interface circuit (2) respectively; The 5th transmitting-receiving port (SPI) in the single chip circuit (1) is connected with the FPDP of RF wireless communication module circuit (3); First, second transmitting-receiving COM1 (DI, RO) of 485 serial communication circuits (4) is connected with first, second asynchronous communication mouth (TX1, RX1) of single chip circuit (1).