CN2583551Y

CN2583551Y - Room temp. controller with two setting temp. central air conditioner

Info

Publication number: CN2583551Y
Application number: CN 02257619
Authority: CN
Inventors: 孟庆强
Original assignee: 陈立楠
Priority date: 2002-10-08
Filing date: 2002-10-08
Publication date: 2003-10-29
Anticipated expiration: 2012-10-08

Abstract

The utility model relates to a room temperature controller for a central air conditioner, which belongs to the technical field of an indoor electric appliance. The controller comprises a room, a temperature sensor, an LCD display and keys, wherein the output end of the temperature sensor is connected with the temperature signal input end of a monolithic computer, the output ends of the keys are connected with the given signal input end of the monolithic computer, the display output end of the monolithic computer is connected with the LCD display, and the control signal output end is in external connection with a control drive board of an air conditioner. In addition, the utility model also comprises a proximity testing circuit (or a testing circuit with a signal for having people in the room), the output end of the testing circuit is connected with the detection signal end of the monolithic computer, and the input end is provided with both end components which can cause the detection signal end of the monolithic computer to generate level variation through inserting and pulling objects. The utility model can adjust the temperature of hotels and guest rooms reasonably, which saves energy and is convenient to meet the needs of guests.

Description

Two design temperature central air-conditioning room temperature controllers

Technical field

The utility model relates to a kind of temperature controller, and especially a kind of central air-conditioning room temperature controller belongs to the indoor electric appliance technical field.

Background technology

The management control method that when hotel adopts no guest to move into usually at present cut off the electricity supply in the guest room.Be indoor nobody the time, power supply is in dissengaged positions, illuminating lamp does not work, colour TV can not be opened.Have only after the guest enters, the article of CUSTOM HOUSE HOTEL and so on are inserted in behind the door the power-supply controller of electric, indoor power supply just is switched on, and electrical equipment such as this rear lighting lamp or colour TV promptly can be opened.

Then there is obvious problem in the air-conditioning that this management control mode is used to control hotel room.Because winter, two season of summer, temperature height great disparity was very big, the guest advances just to start air-conditioning behind the room and regulate the room temperature, and can feel very uncomfortable, needs the long period just can reach preference temperature; And if that the temperature in the room remains is suitable, be about to room temperature and be controlled at optimum temperature all the time, certainly will energy consumption too big.

Also having class methods is to add control line on temperature controller, and the unlatching of air-conditioning is controlled by information desk, is very at random phenomenon because of the guest passes in and out the guest room, and the effect of this control method is also bad.

Summary of the invention

The purpose of this utility model is: the problem that exists at present hotel room adjustment control proposes a kind of two design temperature central air-conditioning room temperature controllers that can keep room temperature comparatively to suit, save again simultaneously the energy.

In order to reach above purpose, of the present utility model pair of design temperature central air-conditioning room temperature controller comprises single-chip microcomputer, temperature sensor, LCD display, button.The output of temperature sensor connects the temperature signal input of single-chip microcomputer, and the output of button connects the setting signal input of single-chip microcomputer, the external air conditioner control of its control signal output drive plate.In addition, also comprise near testing circuit (or claiming " there is people's signal in the room " testing circuit), the output of this testing circuit connects the detection signal end of single-chip microcomputer, and its input is for plugging and unplugging the two ends element that causes that single-chip microcomputer detection signal end level changes by object.

After adopting the utility model, after the people enters room, room power supply and is switched on because of the object that inserts CUSTOM HOUSE HOTEL and so on, whether single-chip microcomputer is discerned the variation of " there is people's signal in the room " testing circuit detected state because of the variation of detection signal end level, and then judge and have the guest to enter in the room.In the room man-hour is arranged, the temperature work that air conditioner is set according to the tenant, in the room nobody the time according to predefined economic design temperature work.

Like this, the temperature of hotel guest-room when nobody enters is controlled at the economic state of temperature that is lower than ambient temperature summer, is higher than ambient temperature winter, it is comparatively suitable to feel when the someone is entered, when the guest further was adjusted to optimum temperature, air conditioner can reach the ideal temperature that the guest requires in the short period of time.

This shows that the utility model makes that the adjustment control of hotel guest-room is more reasonable, promptly saves the energy, is convenient to satisfy guest's needs again, therefore will receive an acclaim.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the circuit diagram of an embodiment of the utility model.

The specific embodiment

Embodiment one

Two design temperature central air-conditioning room temperature controllers of present embodiment mainly are made up of ATmega8L type single-chip microcomputer IC4, temperature sensor circuit T, accessory power outlet C, LCD circuit, key circuit K, " there is people's signal in the room " testing circuit (promptly near testing circuit) J and network interface circuit W as shown in Figure 1.Single-chip microcomputer IC4 is connected to peripheral crystal oscillating circuit Z and reset circuit R; Temperature sensor circuit T mainly is made of temperature-sensitive element R12 and NE555 type ic chip 8; LCD circuit is made up of LCD backlight circuit L, LCD LCD and liquid crystal display drive circuit D.

Its annexation each other is: the output INT0 of temperature sensor circuit T connects temperature signal input 4 pin of single-chip microcomputer IC4, the output of key circuit K connects the input 15-19 pin of the button of single-chip microcomputer IC4 respectively, the pull-up resistor of button is in CPU inside, network interface circuit W mainly is made of the MAX1487 chip, and its communication terminal connects PORT COM 2,3 pin of single-chip microcomputer IC4 respectively; Demonstration output 24,25 pin of single-chip microcomputer IC4 meet the liquid crystal display drive circuit D in the LCD display circuit, and then meet LCD LCD, and its control signal output 5,6,11,12,13 pin are by the external air conditioner control of accessory power outlet C drive plate.

" there is people's signal in the room " testing circuit J is made of optic coupling element U14, diode D7 and resistance R 23 and capacitor C 10, wherein the room power input is through the capacitor C 10 of series connection, the input that resistance R 23 meets diode connected in parallel D7 and optocoupler U14, and the output of light idol U14 connects detection signal end 14 pin of single-chip microcomputer IC4.

The controller of present embodiment has all the time, after the people enters the room, room 220V power supply is switched on, after C10 step-down, R23 current limliting, flow to optocoupler U14 and diode D7, owing to have connecting resistance in the inside of single-chip microcomputer IC4 the 14th foot mouth, therefore, after room 220V power supply was switched on, U14 was in the positive half cycle conducting of power supply, and the 14th pin will have the low level of a pulsation.And the room nobody the time, indoor 220V power supply is cut off, the 14th pin of controller mainboard IC4 is high level all the time.

Like this, single-chip microcomputer IC4 is easy to change to judge whether the people is arranged in the room by the 14th pin level that testing circuit J causes.And according to season, the duty of control air conditioner: need air conditioner refrigerating summer, when there is man-hour in the room, the temperature operation of setting by the guest, when the room nobody the time, automatically by a certain economic design temperature operation (as 28 ℃); Need air-conditioning system warm winter, when there is man-hour in the room, by the temperature operation that the guest sets, nobody the time, automatically by a certain economic design temperature operation (as 10 ℃).Economic design temperature can be regulated arbitrarily by the hotel, hotel.As a result, temperature is pleasant all the time in the room, has improved service quality, comparatively saves the energy again, so present embodiment is highly suitable for the hotel, hotel and applies.

In addition, owing to contain network interface circuit, so present embodiment can also be realized Long-distance Control by network.

After temperature controller was installed in the room, because the difference of the position that the form in room and temperature controller are installed, the temperature of the temperature that temperature controller records and guest's sensation can be variant.Present embodiment can be revised the temperature value that temperature controller records by button.Method is as follows: press mode key and do not loose one's grip, 10 second rear defence open, promptly enter the thermometric modification model.By adding, subtract key, measured temperature can increase or reduce respectively.By other any key, promptly withdraw from the thermometric modification model.

Present embodiment adopts ATmega8L type single-chip microcomputer, and EEPROM is contained in its inside, and setting value that temperature controller is all and running status all are kept in the EEPROM, like this, even whole temperature controller power down also can recover original running status behind the incoming call automatically.

In addition to the implementation, the utility model can also have other embodiments.For example " there is people's signal in the room " can also adopt other patterns, no matter utilizes effects such as light, magnetic, microswitch, as long as the level variation that can cause on single-chip microcomputer IC4 the 14th pin that plugs and unplugs of CUSTOM HOUSE HOTEL and so on article all can.The method of Long-distance Control also can be used stem grafting mouth etc.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.

Claims

1. a two design temperature central air-conditioning room temperature controller comprises single-chip microcomputer, temperature sensor, LCD display, button; The output of described temperature sensor connects the temperature signal input of single-chip microcomputer, and the output of button connects the setting signal input of single-chip microcomputer, the demonstration output termination LCD display of described single-chip microcomputer, the external air conditioner control of its control signal output drive plate; It is characterized in that: comprise also that near testing circuit the output of this testing circuit connects the detection signal end of single-chip microcomputer, its input is for plugging and unplugging the two ends element that causes that single-chip microcomputer detection signal end level changes by object.

2. according to described pair of design temperature central air-conditioning of claim 1 room temperature controller, it is characterized in that: describedly constitute by optic coupling element, diode and resistance capacitance near testing circuit, wherein the room power input connects diode connected in parallel and optocoupler input through the capacitance resistance of series connection, and light idol output connects the detection signal end of single-chip microcomputer.

3. according to described pair of design temperature central air-conditioning of claim 1 room temperature controller, it is characterized in that: also contain network interface circuit, the communication terminal of described network interface circuit connects the corresponding PORT COM of single-chip microcomputer.