CN201569496U - Temperature detecting and displaying system - Google Patents

Abstract

A temperature detecting and displaying system comprises a singlechip, a singlechip leading circuit, a crystal oscillator circuit, a status lamp circuit, a display circuit and a temperature sensor, wherein the temperature sensor obtains temperature value which is sent to the singlechip to be converted into Celsius temperature value, and the Celsius temperature value is refreshed and displayed through the display circuit. When environment temperature is in seriously dangerous state, a state lamp of the state lamp circuit turns red, turns green in normal operation state, and turns yellow in non-optimal operation state. The system has the advantages of small volume, convenient carrying, stability, reliability and wide application, can not only measure the temperature but also divide the temperature range, and can distinguish the operation temperature in normal state and in abnormal state. By using the singlechip as a nucleus module, the system has the characteristics of good performance, high speed, low cost, cheap price and universality.

Description

A temperature detection and display system

technical field

The utility model relates to a temperature detection and display system, which belongs to the technical field of computer program control.

Background technique

The global climate is getting warmer, and the weather is changing so fast that weather forecasts often make mistakes. Smart people have come up with various methods to protect themselves and make their lives more comfortable. However, with the development of the information society, computers have gradually replaced a large number of human operations, providing a lot of convenience for people's work and life, improving work efficiency, and at the same time , The computer also needs more care, especially in the computer room, etc., which need to run for a long time and ensure trouble-free operation as much as possible, the computer is very important.

The gradual popularization of computer technology has made people gradually realize the importance of computers in their work and life, and also increased their understanding of the operating status of computers and increased their protection. For the 24-hour server room, how to make the computer run at high speed and efficiently has gradually attracted people's attention. One of the most basic and common influencing conditions affecting the operating state of a computer is temperature. For general server models, the operating temperature range is between 0°C and 30°C, and the ideal value is usually guaranteed to be around 26°C.

In the existing technology, modern computer rooms are basically equipped with central air-conditioning, but how to use the air-conditioning easily and effectively, if you need to check the thermometer over and over again, turn it on for ten minutes and turn it off for five minutes, this is a labor-intensive effort. This is a great waste, and it is also a kind of injury to the human body. The utility model provides a temperature detection and display system, so that these problems can be easily solved. It only needs a simple temperature measurement circuit, and can save a lot of manpower and material resources through program reminders or sending signals, and further improve work efficiency.

Utility model content

The purpose of this utility model is to provide a temperature detection and display system, which can detect the external temperature of the system and display the external temperature range through different color status lights.

In order to achieve the above object, the utility model provides a temperature detection system, including a single-chip microcomputer, a pin circuit of the single-chip microcomputer, a reset circuit, a crystal oscillator circuit, a status light circuit, a display circuit and a temperature sensor;

The above-mentioned single-chip microcomputer pin circuit is connected with the reset circuit, the crystal oscillator circuit, the status light circuit and the display circuit through the serial port device, and realizes the visit to the reset circuit, the crystal oscillator circuit, the status lamp circuit and the display circuit;

The temperature sensor obtains the temperature value and transmits it to the microcontroller to convert it into a Celsius temperature value. The value is refreshed and displayed by the display circuit. When the ambient temperature is in a serious dangerous state, the status light of the status light circuit lights up in red, and in the normal operating state it lights up in green, which is not the most In good working condition, the yellow light is on.

In the above-mentioned temperature detection and display system, in the single-chip microcomputer pin circuit, P1.0 is the temperature sensor data pin, P2 pin is the display circuit data pin, P0.0-P0.3 is the display circuit dynamic refresh pin, P3.0 ~ P3.2 are the status light circuit pins.

In the temperature detection and display system mentioned above, the reset circuit is composed of a 10μF capacitor and a 10K resistor, so that other components in the system are in a certain initial state and start working from this state.

In the above-mentioned temperature detection and display system, the crystal oscillator circuit adopts a 12M crystal oscillator and a 30PF capacitor.

In the above-mentioned temperature detection and display system, the status light circuit is composed of red, yellow and green light-emitting diodes, respectively indicating the corresponding operating status of each temperature range.

In the above-mentioned temperature detection and display system, the display circuit adopts a 4-digit 8-segment common-cathode digital tube, which is refreshed and displayed through the P2 port of the single-chip microcomputer, and scanned and displayed through the P0 port.

In the above temperature detection and display system, the temperature measurement range of the temperature sensor is -55°C to +125°C, and the inherent temperature measurement resolution is 0.5°C.

Compared with the prior art, the utility model has the advantages that:

1. The utility model is small in size and easy to carry;

2. The utility model is stable and reliable, and can be widely used. It can divide the temperature range while measuring the temperature, and distinguish the normal working temperature from the abnormal working temperature;

3. The utility model uses a single-chip microcomputer as the core module, which has the characteristics of high performance and high speed;

4. The utility model has low cost, low price and universality.

Description of drawings

Fig. 1 is the overall circuit diagram of the temperature detection and display system provided by the utility model;

Fig. 2 is the circuit diagram of the temperature detection and display system reset circuit provided by the utility model;

Fig. 3 is the circuit diagram of the crystal oscillator circuit of the temperature detection and display system provided by the utility model;

Fig. 4 is the circuit diagram of the temperature detection and display system status light circuit provided by the utility model;

Fig. 5 is a circuit diagram of the display circuit of the temperature detection and display system provided by the utility model.

Detailed ways

Below according to Fig. 1～Fig. 5, the preferred embodiment of the present utility model is described in detail:

As shown in Figure 1, Figure 1 is a temperature detection and display system provided by the utility model, including a single-chip microcomputer 1, a single-chip microcomputer pin circuit 11, a reset circuit 2, a crystal oscillator circuit 3, a status light circuit 4, a display circuit 5 and a temperature sensor 6 .

The single chip microcomputer pin circuit 11 is connected with the reset circuit 2, the crystal oscillator circuit 3, the status light circuit 4 and the display circuit 5 through the serial port device, and realizes the visit to the reset circuit 2, the crystal oscillator circuit 3, the status light circuit 4 and the display circuit 5.

In the microcontroller pin circuit 11, P1.0 is the temperature sensor data pin, P2 is the display circuit data pin, P0.0~P0.3 is the display circuit dynamic refresh pin, P3.0~P3.2 is the status Lamp circuit pin.

The temperature measurement range of the temperature sensor 6 is -55°C to +125°C, and the inherent temperature measurement resolution is 0.5°C.

As shown in Figure 2, Figure 2 is a circuit diagram of the temperature detection and display system reset circuit provided by the utility model. Reset circuit 2 is composed of 10μF capacitor and 10K resistor, which makes other components in the system in a certain initial state and starts to work from this state.

As shown in Fig. 3, Fig. 3 is a circuit diagram of the crystal oscillator circuit of the temperature detection and display system provided by the utility model. The crystal oscillator circuit 3 adopts a 12M crystal oscillator and a 30PF capacitor.

As shown in Figure 4, Figure 4 is a circuit diagram of the temperature detection and display system status light circuit provided by the utility model. The status light circuit 4 is composed of red, yellow and green three-color light-emitting diodes, respectively indicating the corresponding operating status of each temperature range.

As shown in Figure 5, it is a circuit diagram of the display circuit of the temperature detection and display system provided by the utility model. The display circuit 5 adopts a 4-digit 8-segment common-cathode digital tube, which is refreshed and displayed through the P2 port of the single-chip microcomputer 1, and scanned and displayed through the P0 port.

The system directly obtains +5V input voltage through the USB power supply method, and enters the working circuit after connecting a 4.7 ohm protection resistor in series. The temperature value is obtained by the temperature sensor and sent to the P1. .0 port 4-digit 8-segment common cathode digital tube dynamic refresh display. Ports P3.0 to P3.2 are running status indicator lights, and when the ambient temperature is in the range of 31°C to 125°C, the red light is on for serious danger. 0 ℃ ~ 30 ℃ is the normal operating state, the green light is on, and below 0 ℃ is the non-optimal working state, the yellow light is on.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (7)

1. A temperature detection and display system, comprising single-chip microcomputer (1), single-chip microcomputer pin circuit (11), reset circuit (2), crystal oscillator circuit (3), status light circuit (4) and display circuit (5) and temperature sensor (6); It is characterized in that, The single-chip microcomputer pin circuit (11) is connected with the reset circuit (2), the crystal oscillator circuit (3), the state lamp circuit (4) and the display circuit (5) through the serial port device, and realizes the reset circuit (2), the crystal oscillator Access to circuit (3), status light circuit (4) and display circuit (5); The temperature sensor obtains the temperature value and transmits it to the microcontroller to convert it into a Celsius temperature value. The value is refreshed and displayed by the display circuit. When the ambient temperature is in a serious dangerous state, the status light of the status light circuit lights up in red, and in the normal operating state it lights up in green, which is not the most In good working condition, the yellow light is on. 2. temperature detection and display system as claimed in claim 1, is characterized in that, in described single-chip microcomputer pin circuit (11), P1.0 is temperature sensor data pin, and P2 pin is display circuit data pin, P0.0~P0.3 are the dynamic refresh pins of the display circuit, and P3.0~P3.2 are the status light circuit pins. 3. temperature detection and display system as claimed in claim 1, is characterized in that, described reset circuit (2) is made up of 10 μ F capacitance and 10K resistance, makes other parts in the system be in certain initial state, and Work from this state. 4. The temperature detection and display system according to claim 1, characterized in that, the crystal oscillator circuit (3) adopts a 12M crystal oscillator and a 30PF capacitor. 5 . The temperature detection and display system according to claim 1 , wherein the status light circuit ( 4 ) is composed of red, yellow and green light-emitting diodes, which respectively indicate the corresponding operating states of each temperature range. 6 . 6. temperature detection and display system as claimed in claim 1, is characterized in that, described display circuit (5) adopts 4-bit 8-segment type common cathode nixie tube, and it refreshes display by the P2 mouth of single-chip microcomputer (1), P0 port scan display. 7. The temperature detection and display system according to claim 1, characterized in that, the temperature measurement range of the temperature sensor (6) is -55°C to +125°C, and the inherent temperature measurement resolution is 0.5°C.

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