CN103206769A - Nano-scale semiconductor refrigeration controller for small electric vehicle and control method of controller - Google Patents

Abstract

The invention discloses a nano-scale semiconductor refrigeration controller for a small electric vehicle and a control method of the controller. The nano-scale semiconductor refrigeration controller comprises a temperature sensor, a humidity sensor, an analog switch, an A/D (analog to digital) conversion module, a single chip microcomputer, a keyboard display module and an execution output module, the temperature sensor and the humidity sensor are respectively connected to the A/D conversion module through corresponding module switches, and the A/D conversion module, the keyboard display module and the execution output module are connected with the single chip microcomputer. The nano-scale semiconductor refrigeration controller realizes intelligent and automatic control as temperature and humidity acquisition is controlled by the single chip microcomputer and by means of automatic control and alarm.

Description

A kind of small-sized electric automobile Nano semiconductor refrigeration controler and control method thereof

Technical field

The invention belongs to air conditioning for automobiles control field, particularly a kind of small-sized electric automobile Nano semiconductor refrigeration controler and control method thereof.

Background technology

Along with the development of society, the car owning amount of China is increasing, and environmental pollution, energy shortage problem are also serious day by day.Present electric automobile belongs to conventional automobile repacking mostly, adopts common driving battery, as iron ion, lithium ion battery etc., has shortcomings such as cost height, mileages of continuation weak point., driving battery energy storage little owing to the electric automobile space waits reason very little, causes not disposing on the traditional electric automobile air-conditioning system.

Summary of the invention

In view of this, the purpose of this invention is to provide a kind of small-sized electric automobile with Nano semiconductor refrigeration controler and control method thereof, adopt the collection of Single-chip Controlling temperature, humidity, control automatically and report to the police, realize intelligence, automatic control.

To achieve these goals, the present invention is by the following technical solutions:

A kind of small-sized electric automobile wherein, comprises temperature sensor, humidity sensor, analog switch, A/D modular converter, single-chip microcomputer, keyboard display module and execution output module with Nano semiconductor refrigeration controler and control method thereof; Described temperature sensor and humidity sensor are connected to the A/D modular converter through corresponding module switch respectively, and A/D modular converter, keyboard display module and execution output module all are connected with single-chip microcomputer.

As preferably, described small-sized electric automobile also comprises alarm module with the Nano semiconductor refrigeration controler, and described alarm module is connected with single-chip microcomputer.

As preferably, described single-chip microcomputer is the AT89C51 single-chip microcomputer.

A kind of small-sized electric automobile wherein, comprises the steps: with the control method of Nano semiconductor refrigeration controler

Steps A, system initialization;

Step B judges whether design temperature bound parameter, if not, then enters the setup parameter subprogram; If, execution in step C then;

Step C enters temperature, Humidity Detection subprogram, call finish after, enter into temperature, humidity parameter display subroutine again;

Step D, the judgement of transfiniting if transfinite, then enters alarm indication and execution subroutine, otherwise, get back to initialization module and re-execute.

Beneficial effect of the present invention is:

In the semiconductor refrigerating heating combined equipment, heat-conducting silicone grease is smeared on the thermal conductive ceramic plate surface in cooling piece cold junction and hot junction can reduce thermal contact resistance, but heat-conducting silicone grease surpasses 60 ℃ just to be melted easily, so just need understand the temperature of ceramic surface at any time, just need the heat radiation of unlatching fan in case surpass this temperature, controller provided by the invention has been realized temperature, the collection of humidity, control and warning automatically.The adjusting of car temperature is set at (10 ℃～40 ℃) in certain scope, and the user can regulate temperature according to the requirement of self, and precision can reach ± and 0.5 ℃.In addition, system can also inspection vehicle in humidity, and can carry out the automatic adjusting of humidity according to the comparative result of actual humidity and setting value.Keyboard and display interface then is mainly used in the real-time demonstration of the setting of temperature, humidity upper lower limit value and temperature, humidity value.

Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being apparent to those skilled in the art to investigating hereinafter, perhaps can obtain instruction from the practice of the present invention.Target of the present invention and other advantages can realize and obtain by specifically noted structure in following specification or the accompanying drawing.

Description of drawings

Fig. 1 is structured flowchart of the present invention;

Fig. 2 is system flow chart of the present invention;

Fig. 3 is use schematic diagram of the present invention.

The specific embodiment

Below by specific embodiment, and by reference to the accompanying drawings, the preferred embodiments of the present invention are described in detail.

As shown in Figure 1, the present invention includes temperature sensor, humidity sensor, analog switch, A/D modular converter, single-chip microcomputer, alarm module, keyboard display module and execution output module; Temperature sensor and the humidity sensor corresponding module switch of warp respectively are connected to the A/D modular converter, and the A/D modular converter is through expansion mouthful 8155 connection single-chip microcomputers, and keyboard display module is connected with single-chip microcomputer respectively with the execution output module.

The present invention selects for use AT89C51 single-chip microcomputer, DSl8B20 integrated temperature sensor, capacitance type humidity sensor HSll01 to carry out hardware design, and the P0.1 of single-chip microcomputer and P0.2 port are as the data input/output port of TEMP, keyboard display module.After temperature sensor detects analog temperature, can convert thereof into 9～12 bit digital and be stored in the buffer.In fact HSll01 is equivalent to a humicap, its oscillating circuit is made up of 555 timers, when ambient humidity changes, the capacitance of humidity sensor HSll01 can change thereupon, like this, this capacitance can be converted into the square-wave signal that frequency is inverse ratio with it by oscillating circuit, and send this signal to single-chip microcomputer by PD3.Single-chip microcomputer just can obtain corresponding humidity value by frequency computation part.

Keyboard display module CH452L is a keyboard display driver chip, and its pin DIN, DOUT, LOAD, DCLK are connected with PD2 with the PB0～PB2 of single-chip microcomputer respectively, and system can arrange various parameters by keyboard.Also can show temperature, the humidity value that single-chip microcomputer collects in real time by charactron.

The present invention can detect temperature, humidity value automatically, and judges whether temperature, humidity value exceed limits.If go beyond the scope, then by PE0, PE1 output signal, carry out output module with control and carry out the adjusting of temperature, humidity.In order to improve the stability of system, between SCM system and performance element, should use photoisolator.

The each several part circuit is core with the AT89C51 single-chip microcomputer, and by single-chip microcomputer input/outbound port temperature, humidity or keyboard scanning signal are collected single-chip microcomputer respectively, through after the calculation process of single-chip microcomputer, output to alarm indication by input/output port and carry out automatic control and the monitoring of temperature, humidity with the execution output port module.

Major function of the present invention is: the one, and the temperature of regulating vehicle interior temperature and measurement and control cooling piece cold junction and thermal conductive ceramic plate surface, hot junction; The 2nd, regulate humidity in the car, namely control damping device, realize automation and intelligent control.

As shown in Figure 2, after single-chip microcomputer powers on, at first answer initialization system.After initialization is finished, judge whether again to set temperature, humidity upper lower limit value, if do not set, then enter the setup parameter subprogram, otherwise, temperature, Humidity Detection subprogram entered.After temperature, Humidity Detection subroutine call finish, enter into temperature, humidity parameter display subroutine again, afterwards, the judgement of transfiniting again.If having transfinites, then enter alarm indication and execution subroutine, otherwise, get back to initialization module and re-execute.

As shown in Figure 3, nano solar semiconductor refrigerating air-conditioning is the photovoltaic effect according to solar energy, namely by " light-electricity-cold " approach, and the electric energy that utilizes the nanocrystal solar cells pond to produce is to drive semiconductor cooling device, with a kind of special refrigeration modes of realization thermal energy transfer.This device suits the temperature of automobile cab, humidity in order to control semiconductor cooling device.

Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.

Claims (4)

1. a small-sized electric automobile Nano semiconductor refrigeration controler is characterized in that: comprise temperature sensor, humidity sensor, analog switch, A/D modular converter, single-chip microcomputer, keyboard display module and execution output module; Described temperature sensor and humidity sensor are connected to the A/D modular converter through corresponding module switch respectively, and A/D modular converter, keyboard display module and execution output module all are connected with single-chip microcomputer.

2. a kind of small-sized electric automobile Nano semiconductor refrigeration controler according to claim 1, it is characterized in that: described small-sized electric automobile also comprises alarm module with the Nano semiconductor refrigeration controler, and described alarm module is connected with single-chip microcomputer.

3. a kind of small-sized electric automobile Nano semiconductor refrigeration controler according to claim 1, it is characterized in that: described single-chip microcomputer is the AT89C51 single-chip microcomputer.

4. the control method of a small-sized electric automobile usefulness Nano semiconductor refrigeration controler is characterized in that: comprise the steps:

Steps A, system initialization;

Step B judges whether design temperature bound parameter, if not, then enters the setup parameter subprogram; If, execution in step C then;

Step C enters temperature, Humidity Detection subprogram, call finish after, enter into temperature, humidity parameter display subroutine again;

Step D, the judgement of transfiniting if transfinite, then enters alarm indication and execution subroutine, otherwise, get back to initialization module and re-execute.

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