CN2769740Y

CN2769740Y - Air conditioner controller

Info

Publication number: CN2769740Y
Application number: CN 200420102645
Authority: CN
Inventors: 黄尚南
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-17
Filing date: 2004-12-17
Publication date: 2006-04-05
Anticipated expiration: 2014-12-17

Abstract

An air-conditioner controller comprises: an external-controlling command receiving circuit, a checking circuit for functional mode of an air conditioner, an air-conditioning switch controlling circuit, a central processing circuit and a power circuit. The external-controlling command receiving circuit receives signals form a front-end equipment and transmits the signals to the central processing circuit; the checking circuit for functional mode of an air conditioner checks the functional-mode signal and transmits the signals to the central processing circuit; the central processing circuit processes the data and transmits the air-conditioning controlling signals to the air-conditioning switch controlling circuit, and the turning on and turning off of the air conditioner are controlled. The utility model solves the technical problem that the traditional air conditioner controller can not restore to the function mode when the front-end equipment has a fault and the air conditioner can not realize power-on starting. The utility model is used in the situation which needs to control the air conditioner such as a base station and a machinery room, etc; under the condition of unattended operation, the air conditioner is ensured to realize self-starting when the front-end equipment has a fault and the electricity of the base station and the machinery room is supplied after the electricity is cut off, and the technological problem of equipment damaging which is caused by the overhigh environment temperature can be solved.

Description

Air-conditioner controller

Technical field

The utility model relates to a kind of occasions such as various base stations, machine room that are used for, the air-conditioning safety controller that air-conditioning is controlled.

Background technology

At present, each base station, machine room have all been installed a large amount of communication equipments, and these equipment send a large amount of heats in the course of the work, if there is not heat dissipation equipment, the temperature of machine room can not guarantee the operate as normal of electronic equipments such as communicating by letter with fast rise.Traditional approach all adopts the mode of air conditioner refrigerating to give equipment cooling.General each base station or machine room all can dispose two above air-conditionings, by headend equipment, as environmental monitoring equipment control air-conditioning automatically wheel change jobs, still, traditional air-conditioning is controlled at headend equipment when breaking down, air-conditioning can not return to duty, incoming call after base station, machine room have a power failure, air-conditioning can not be realized the self-starting of sending a telegram here, thereby, cause environment temperature too high, cause base station, calculator room equipment to damage.

Summary of the invention

The purpose of this utility model proposes a kind of under unattended situation exactly, can guarantee that headend equipment breaks down and back incoming call that have a power failure all can be realized the air-conditioner controller of air-conditioning self-starting.

For achieving the above object, air-conditioner controller comprises: external control order receiving circuit, air-conditioning work state detection circuit, air-conditioning switch control circuit, central processing circuit and power circuit.

External control order receiving circuit receives wired or wireless signal and output from headend equipment;

The air-conditioning work state detection circuit detects the working state signal and the output of air-conditioning;

The air-conditioning switch control circuit outputs signal to air-conditioning, the Push And Release of control air-conditioning;

Central processing circuit is imported the output signal of described external control order receiving circuit and air-conditioning work state detection circuit, carries out data and handles, and the output air-conditioning controls signal to the air-conditioning switch control circuit;

Power circuit provides required power supply to described external control order receiving circuit, air-conditioning work state detection circuit, air-conditioning switch control circuit and central processing circuit.

Whether the working state signal that described air-conditioning work state detection circuit detects air-conditioning can also can start work with the identification air-conditioning for detecting the relay indicating light signal of air-conditioning for detecting the high, medium and low third gear blower fan signal of air-conditioning.

Described power circuit adopts the power supply of air-conditioning control panel power supply, guarantees still can open air-conditioning work after headend equipment breaks down.

External control order receiving circuit can receive wired or wireless signal, wire signal is directly to connect the external control order receiving circuit of signal to air-conditioner controller from headend equipment by direct connection or RS232/RS485 communication, wireless signal is signal to be emitted by infrared or radio frequency sending module by headend equipment, receive this signal by corresponding receiver module again, be input to the external control order receiving circuit of air-conditioner controller again.

Because the order that the utility model air-conditioner controller can send over the detected headend equipment of external control order receiving circuit, and the air-conditioning status signal that monitors from the air-conditioning work state detection circuit, carrying out data by central processing circuit handles, the output control signal, through air-conditioning switch control circuit control starting of air conditioner, so, can set order that how long external control order receiving circuit do not receive headend equipment and judge that promptly headend equipment breaks down and realizes starting of air conditioner; Incoming call after having a power failure, the utility model air-conditioner controller also can judge whether to start air-conditioning work automatically according to the signal of external control order receiving circuit and air-conditioning work state detection circuit.

Description of drawings

Fig. 1 is the utility model air-conditioner controller circuit block diagram;

Fig. 2 is the utility model embodiment external control order receiving circuit 1 circuit theory diagrams;

Fig. 3 is the utility model embodiment air-conditioning work state detection circuit 2 circuit theory diagrams;

Fig. 4 is the utility model embodiment air-conditioning switch control circuit 3 circuit theory diagrams;

Fig. 5 is the utility model embodiment central processing circuit 4 circuit theory diagrams;

Fig. 6 is the external reset circuit circuit theory diagrams of the utility model embodiment central processing circuit 4;

Fig. 7 is the utility model embodiment power circuit circuit theory diagrams.

The specific embodiment

As shown in Figure 1, be the utility model air-conditioner controller circuit block diagram, comprise: external control order receiving circuit 1, air-conditioning work state detection circuit 2, air-conditioning switch control circuit 3 and central processing circuit 4.

External control order receiving circuit 1 receives from the wired or wireless signal of headend equipment and exports central processing circuit 4 to, air-conditioning work state detection circuit 2 detects the working state signal of air-conditioning and exports central processing circuit 4 to, the output signal of central processing circuit 4 input external control order receiving circuits 1 and air-conditioning work state detection circuit 2, carrying out data handles, the output air-conditioning controls signal to air-conditioning switch control circuit 3, air-conditioning switch control circuit 3 outputs signal to air-conditioning, the Push And Release of control air-conditioning.

Provide the utility model embodiment external control order receiving circuit 1 circuit theory diagrams as shown in Figure 2, comprised J3 input signal input, Q1 signal amplification circuit and U6 optical coupling isolation circuit; J3 has only provided the direct-connected mode of wire signal herein, and other RS232/RS485 or wireless mode are therewith roughly the same.In this circuit, after the wired or wireless signal process Q1 signal amplification circuit amplification of input from headend equipment, isolate the controlled signal INTO in back by the U6 optical coupling isolation circuit again, INTO is input to central processing circuit 4 and carries out the data processing.

The utility model embodiment air-conditioning work state detection circuit 2 circuit theory diagrams have been provided as shown in Figure 3, this circuit can be by detecting the high HIGH of air-conditioning, middle MED, whether low LOW third gear blower fan FAN signal is discerned air-conditioning and is started, circuit part comprises three diode D4, D5, input circuit and optical coupling isolation circuit U4 that D6 constitutes, also can discern by the relay indicating light LED signal of air-conditioning, circuit part comprises optical coupling isolation circuit U5, this dual mode is selected by wire jumper JP3, when JP3 connects, J1 is the high HIGH that detects air-conditioning, middle MED, the signal input part of low LOW third gear blower fan FAN state, when air-conditioning is not worked, the high HIGH of air-conditioning, middle MED, low LOW third gear blower fan FAN test point all is 12V, difference input diode D6, D5 and D4, diode D6, D5 and D4 end, optical coupling isolation circuit U4 conducting, output signal AIR-STATUS is a low level, during air-conditioning work, the high HIGH of air-conditioning, middle MED, it is 0V that low LOW third gear blower fan FAN has a test point at least, difference input diode D6, D5 and D4, diode D6, D5 and D4 have a conducting at least, optical coupling isolation circuit U4 ends, and output signal AIR-STATUS is a high level; When JP3 does not connect, J2 is the input that detects the relay indicating light LED signal of air-conditioning, when air-conditioning work, the J2 1.4V voltage of having an appointment at two ends, optical coupling isolation circuit U5 conducting, output signal AIR-STATUS is a high level, when air-conditioning is not worked, the J2 0.7V voltage of having an appointment at two ends, optical coupling isolation circuit U5 ends, output signal AIR-STATUS is a low level, and the AIR-STATUS signal is input to central processing circuit 4 and handles.

The utility model embodiment air-conditioning switch control circuit 3 circuit theory diagrams have been provided as shown in Figure 4, the input signal ctr1 of air-conditioning switch control circuit 3 is from central processing circuit 4, can be pulse signal, also can be level signal, correspondingly, the output signal of air-conditioning switch control circuit 3 can be exported for pulse, also can export for level, to adapt to different air-conditioning control, J4 is the switching on and shutting down button of air-conditioning.

The utility model embodiment central processing circuit 4 circuit theory diagrams have been provided as shown in Figure 5, central processing circuit 4 comprises CPU single-chip microcomputer U3, signal shift switch JP4, two address wire jumper JP1 and JP2, test oneself button S1 and reset circuit, CPU single-chip microcomputer U3 adopts the AT89C2051 chip, the middle fracture P3.2 of the output signal INTO input CPU single-chip microcomputer U3 of external control order receiving circuit 1, the input port P1.0 of the output signal air status input CPU single-chip microcomputer U3 of air-conditioning work state detection circuit 2, CPU single-chip microcomputer U3 basis is from the control command INTO of external control order receiving circuit 1 and this air-conditioning status signal AIR-STATUS that monitors from air-conditioning work state detection circuit 2, carry out data and handle, output air-conditioning control signal ctr1; Two delivery outlet P1.2, P1.3 that CPU single-chip microcomputer U3 is set distinguish outputs level signals and pulse signal, switch through signal shift switch JP4, ctr1 exports air-conditioning switch control circuit 3 to as the air-conditioning control signal, so, it is level signal or pulse signal that switch JP4 can be provided with air-conditioning switch control circuit 3 input signal ctr1, thereby air-conditioning switch control circuit 3 is set is output as level signal or pulse signal, to adapt to different air-conditioning control; Because base station or machine room generally have two air-conditioning A and B, the air-conditioning control command of a headend equipment transmission can be imported two air-conditioner controllers, and the air-conditioning control command that headend equipment sends has pair A air-conditioning or B air-conditioning, therefore, use two wire jumper JP1 and JP2 that the address of air-conditioner controller is set, handle by CPU single-chip microcomputer U3 data, whether the headend equipment air-conditioning control command that decision receives is to control this air-conditioning, as shown in Figure 5, two address wire jumper JP1 and JP2, wherein between the input port P3.5 or P3.4 and ground of each address wire jumper JP1 or JP2 jumper connection CPU single-chip microcomputer U3, this input port P3.5 or P3.4 connect power supply+5V through resistance R 3 or R4.S1 is the button of testing oneself of the utility model embodiment, the button S1 that tests oneself is connected across between the input port P1.5 and ground of CPU single-chip microcomputer U3, whether self-test can detect the utility model embodiment and be connected correctly with air-conditioning, if connect correctly, self-test can change the state of air-conditioning.

Provide the external reset circuit circuit theory diagrams of the utility model embodiment central processing circuit 4 as shown in Figure 6, prevented CPU single-chip microcomputer U3 program fleet effectively, guaranteed reliably working.

The utility model embodiment power circuit circuit theory diagrams have been provided as shown in Figure 7, power circuit comprises voltage stabilizing chip U1, adopt the power supply of 12V air-conditioning control panel power supply, after 7805 voltage stabilizings of U1 voltage stabilizing chip, output 5V voltage, as the power supply of external control order receiving circuit 1, air-conditioning work state detection circuit 2, air-conditioning switch control circuit 3 and central processing circuit 4, guarantee after headend equipment breaks down, still can open air-conditioning work.

Claims

1, air-conditioner controller is characterized in that comprising: external control order receiving circuit (1), air-conditioning work state detection circuit (2), air-conditioning switch control circuit (3), central processing circuit (4) and power circuit; External control order receiving circuit (1) receives wired or wireless signal and output from headend equipment; Air-conditioning work state detection circuit (2) detects the working state signal and the output of air-conditioning; Air-conditioning switch control circuit (3) outputs signal to air-conditioning, the Push And Release of control air-conditioning; Central processing circuit (4) is imported the output signal of described external control order receiving circuit (1) and air-conditioning work state detection circuit (2), carries out data and handles, and the output air-conditioning controls signal to air-conditioning switch control circuit (3); Power circuit, to described external control order receiving circuit (1), air-conditioning work state detection circuit (2), air-conditioning switch control circuit (3) and central processing circuit (4) provide required power supply (+5V).

2, air-conditioner controller according to claim 1, it is characterized in that: described external control order receiving circuit (1) comprises signal amplification circuit (Q1) and buffer circuit (U6), described wired or wireless signal input signal amplifying circuit (Q1) from headend equipment amplifies, through buffer circuit (U6) input central processing circuit (4).

3, air-conditioner controller according to claim 1 is characterized in that: described air-conditioning work state detection circuit (2) detects the working state signal of air-conditioning for detecting the high, medium and low third gear blower fan signal of air-conditioning.

4, air-conditioner controller according to claim 3, it is characterized in that: described air-conditioning work state detection circuit (2) comprises input circuit and the buffer circuit (U4) that three diodes (D4, D5, D6) constitute, the high, medium and low third gear blower fan signal of air-conditioning is imported three diodes (D6, D5, D4) respectively, through buffer circuit (U4) output signal (air status) to central processing circuit (4).

5, air-conditioner controller according to claim 1 is characterized in that: described air-conditioning work state detection circuit (2) detects the working state signal of air-conditioning for detecting the relay indicating light signal of air-conditioning.

6, air-conditioner controller according to claim 5, it is characterized in that: described air-conditioning work state detection circuit (2) comprises buffer circuit (U5), the relay indicating light signal through buffer circuit (U5) output signal (air status) to central processing circuit (4).

7, air-conditioner controller according to claim 1, it is characterized in that: described central processing circuit (4) comprises CPU single-chip microcomputer (U3), signal shift switch (JP4) and two address wire jumpers (JP1 and JP2), the middle fracture (P3.2) of output signal (INTO) the input CPU single-chip microcomputer (U3) of described external control order receiving circuit (1), the input port (P1.0) of the output signal of described air-conditioning work state detection circuit (2) (air status) input CPU single-chip microcomputer (U3), two delivery outlet (P1.2 of described CPU single-chip microcomputer (U3), P1.3) difference outputs level signals and pulse signal, switch through signal shift switch (JP4), export air-conditioning switch control circuit (3) to as air-conditioning control signal (ctrl), described two address wire jumpers (JP1 and JP2), wherein between the input port of each address wire jumper (JP1 or JP2) jumper connection CPU single-chip microcomputer (U3) (P3.5 or P3.4) and the ground, this input port (P3.5 or P3.4) through resistance (R3 or R4) connect power supply (+5V).

8, air-conditioner controller according to claim 7 is characterized in that: described central processing circuit (4) also comprises the button of testing oneself (S1), and the described button of testing oneself (S1) is connected across between the input port (P1.5) and ground of CPU single-chip microcomputer (U3).

9, air-conditioner controller according to claim 7 is characterized in that: described central processing circuit (4) also comprises reset circuit.

10, air-conditioner controller according to claim 1, it is characterized in that: described power circuit adopts the (+12V) power supply of air-conditioning control panel power supply, guarantee after headend equipment breaks down, still can open air-conditioning work, described power circuit comprises voltage stabilizing chip (U1), described air-conditioning control panel power supply (+12V) after voltage stabilizing chip (U1) voltage stabilizing, export the required power supply of described external control order receiving circuit (1), air-conditioning work state detection circuit (2), air-conditioning switch control circuit (3) and central processing circuit (4) (+5V).