CN104406229B - Household heating intelligent temperature control and toll collection system - Google Patents

Abstract

The invention discloses an intelligent temperature control and charging system for home heating, which relates to a temperature control and charging system. It includes the first Hall flow sensor, the second Hall flow sensor, single-chip microcomputer, PWM circuit, temperature sensor, LCD screen, keyboard, stepper motor and buzzer. Seoul flow sensor, PWM circuit, temperature sensor, LCD screen, keyboard, stepping motor are connected, and the stepping motor is connected with buzzer; the single-chip microcomputer adopts AT89C51. The invention has the advantages of simple structure, convenient and reliable use, and convenient temperature control and metering and charging.

Description

Intelligent temperature control and charging system for home heating

technical field

The invention relates to a temperature control and charging system, in particular to an intelligent temperature control and charging system for home heating.

Background technique

In most parts of northern China, the current winter heating metering method has always been metered and charged according to the room area of each household. This metered charging method has problems such as uncontrollable indoor temperature during the heating season, whether the water temperature of the household is up to standard, and the heating system is not energy-saving. . In order to solve these problems, it is necessary to make a convenient heating temperature control and charging system.

Contents of the invention

Aiming at the deficiencies in the existing heating system technology, the purpose of the present invention is to provide an intelligent temperature control and charging system for home heating, which has a simple structure, is convenient and reliable to use, and can facilitate temperature control and charging management.

In order to achieve the above object, the present invention is achieved through the following technical solutions: intelligent temperature control and charging system for home heating, including a first Hall flow sensor, a second Hall flow sensor, a single-chip microcomputer, a PWM circuit, a temperature sensor, a liquid crystal screen , keyboard, stepper motor and buzzer, the microcontroller is connected with the first Hall flow sensor, the second Hall flow sensor, PWM circuit, temperature sensor, LCD screen, keyboard, stepper motor, stepper motor and buzzer The device is connected; the single-chip microcomputer adopts AT89C51.

The temperature sensor model is DS18B20.

The resolution of the LCD screen is 128*64.

The PWM circuit is also connected with an external heating device.

The temperature sensors are installed on the inlet and outlet of the heating water pipe and evenly distributed in the space of the room.

The single-chip microcomputer is also connected with the billing IC card module.

The keyboards are arranged in 3*4.

The first Hall flow sensor and the second Hall flow sensor are respectively installed on the inlet and outlet of the heating water pipe.

Beneficial effects of the present invention:

1. Residents can adjust the indoor temperature according to their own needs and make efficient use of heating resources.

2. It can effectively solve the problem of fairness in heating cost measurement. The equipment is billed according to the heat supply, with reasonable basis and strong transparency, so that users can be sure that the heating fee is really used.

3. It can be billed in time, and the billing IC card module can be used to measure the heat consumption of the user in real time, and timely feedback to the user and the heating company to ensure the interests of both parties.

Description of drawings

The present invention is described in detail below in conjunction with accompanying drawing and specific embodiment;

Fig. 1 is a block diagram of the present invention;

Fig. 2 is the liquid crystal screen of the present invention and the single-chip microcomputer interface circuit connection diagram;

Fig. 3 is the connection diagram of stepper motor and buzzer circuit of the present invention;

Fig. 4 is a temperature sensor circuit connection diagram of the present invention;

Fig. 5 is a PWM circuit diagram of the present invention.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

Referring to Figures 1-5, this specific embodiment adopts the following technical solutions: intelligent temperature control and charging system for home heating, including a first Hall flow sensor 1, a second Hall flow sensor 2, a single-chip microcomputer 3, a PWM circuit 4, and a temperature sensor 5. LCD screen 6, stepping motor 7, buzzer 8, keyboard 9, single chip microcomputer 3 and the first Hall flow sensor 1, the second Hall flow sensor 2, PWM circuit 4, temperature sensor 5, LCD screen 6 , stepping motor 7, keyboard 9 link to each other, stepping motor 7 links to each other with buzzer 8; Described single-chip microcomputer adopts AT89C51.

It should be noted that the model of the temperature sensor 5 is DS18B20.

It should be noted that the resolution of the LCD screen 6 is 128*64.

It should be noted that the PWM circuit 4 is also connected with an external heating device.

It should be noted that the temperature sensor 5 is installed on the inlet and outlet of the heating water pipe.

It should be noted that the keyboard is arranged in 3*4.

It should be noted that the first Hall flow sensor and the second Hall flow sensor are respectively installed on the inlet and outlet of the heating water pipe.

In addition, the single-chip microcomputer 3 is also connected with the billing IC card module.

This specific implementation is mainly based on the control of the single-chip microcomputer. The real-time temperature of the indoor air is received by the temperature sensor and passed to the single-chip microcomputer for processing. The weighted data not only displays the temperature of the room at this time on the LCD screen, but also shows the flow rate. and the current calorie consumption. If the temperature of the room does not reach the temperature set by the system at this time, increase the flow rate of the valve through the stepping motor to speed up the flow rate of hot water in the heating system so that the heating system can release more heat. If the temperature set by the system cannot be reached, the heating system will activate the PWM circuit to increase the flow rate of hot water. If the PWM reaches the full value but has not reached the appropriate temperature, the heating system will activate the electric heating device to increase the indoor temperature. If the temperature reaches the temperature set by the system, the system will continue to maintain the current working state at this time. If the indoor temperature is 1°C higher than the temperature set by the system, the heating system will work in reverse according to the above steps. The billing module counts the heat flow data in the register every half hour, and gives the specific balance information after comparing with the billing data on the IC card, and displays it on the LCD screen. When the billing balance is negative, keep the indoor temperature at 16 ℃ run for 48 hours, if the billing balance does not become a positive value within 48 hours, the heating system will be turned off and the heating to the user will be stopped. If the billing balance becomes a positive value after the user pays the fee, the heating system will resume normal operation mode.

This specific embodiment has simple structure, convenient and reliable use, and can conveniently perform indoor temperature control and heat flow billing.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (5)

1. The intelligent temperature control and charging system for home heating is characterized in that it includes a first Hall flow sensor (1), a second Hall flow sensor (2), a single-chip microcomputer (3), a PWM circuit (4), a temperature sensor ( 5), liquid crystal screen (6), stepper motor (7), buzzer (8) and keyboard (9), single-chip microcomputer (3) and the first Hall flow sensor (1), the second Hall flow sensor (2), PWM circuit (4), temperature sensor (5), LCD screen (6), stepping motor (7), keyboard (9) are connected, and stepping motor (7) is connected with buzzer (8); The single-chip microcomputer adopts AT89C51; Wherein, the PWM circuit (4) is also connected to the external heating device; the temperature sensor (5) is installed on the inlet and outlet of the heating water pipe and evenly distributed in the space of the room; the single-chip microcomputer (3) is also connected to the computer Connect to IC card module; The home heating intelligent temperature control and charging system receives the real-time temperature of the indoor air through the temperature sensor and transmits it to the single-chip microcomputer for processing. The flow rate of hot water in the heating system is accelerated so that the heating system can release more heat. If the valve is opened to the maximum and the temperature set by the system cannot be reached, the heating system will activate the PWM circuit to increase the flow rate of hot water. If the PWM reaches full value has not yet reached the appropriate temperature, the heating system will start the electric heating device to increase the indoor temperature; if the temperature reaches the temperature set by the system, the system will continue to maintain the current working state at this time; if the indoor temperature is higher than the temperature set by the system 1 ℃, then the heating system will work in reverse according to the above steps; the billing module counts the heat flow data in the register every half an hour, and gives the specific balance information after comparing with the billing data on the IC card, and displays it on the LCD screen show. 2. The intelligent temperature control and charging system for home heating according to claim 1, characterized in that the model of the temperature sensor (5) is DS18B20. 3. The intelligent temperature control and charging system for home heating according to claim 1, characterized in that the resolution of the LCD screen (6) is 128*64. 4. The intelligent temperature control and charging system for home heating according to claim 1, characterized in that the keyboards (9) are arranged in 3*4. 5. The intelligent temperature control and charging system for home heating according to claim 1, characterized in that, the first Hall flow sensor (1) and the second Hall flow sensor (2) are respectively installed in the heating pipes. Import and export.