CN113028605B - Temperature control method and system - Google Patents

Abstract

The invention discloses a temperature control method. In the scheme, the processor first obtains the current temperature of the sleeper during sleep, and if the duration of the current temperature lower than the minimum comfortable temperature threshold is greater than the preset time, it means that the sleeper is in It is cold during sleep, and at this time, the processor sends a control command to the air conditioner controller, so that the air conditioner can adjust the temperature accordingly based on the control command. It can be seen that this method can monitor the current temperature of the sleeper in real time during the sleep process, and then judge whether the sleeper feels cold during the sleep process. Improves sleep comfort and sleep quality. The invention also discloses a temperature control system, which has the same beneficial effects as the above temperature control method.

Description

A temperature control method and system

technical field

The invention relates to the field of temperature control, in particular to a temperature control method and system.

Background technique

When the air conditioner is turned on for sleep in summer, the metabolic state of the human body will gradually slow down during sleep. Therefore, the air conditioner temperature set according to the lower heat demand temperature in the early stage of sleep will increase with the increase of the heat demand temperature in the middle and later stages of sleep. , causing the human body to feel cold, sleep interruption and other problems, affecting the quality of sleep.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a temperature control method and system, which can monitor the current temperature of the sleeper in real time during the sleep process, and then judge whether the sleeper feels cold during the sleep process. When it is cold, the temperature control of the air conditioner is automatically realized, which improves the comfort and sleep quality of the sleeping process.

In order to solve the above-mentioned technical problems, the present invention provides a temperature control method, which comprises:

Get the current temperature of the sleeper during sleep;

judging whether the duration of the current temperature lower than the minimum comfortable temperature threshold is greater than a preset time;

If so, send a control command to the air conditioner controller, so that the air conditioner can perform corresponding temperature adjustment based on the control command;

If not, return to the step of obtaining the current temperature of the sleeper during sleep.

Preferably, acquiring the current temperature of the sleeper during sleep includes:

The temperature of the quilt covered by the sleeper acquired by the temperature sensor is used as the current temperature of the sleeper during sleep.

Preferably, there are multiple temperature sensors;

Before getting the sleeper's current temperature during sleep, it also includes:

judging whether a plurality of current temperatures of the sleeper during sleep acquired by a plurality of the temperature sensors are all greater than a temperature threshold;

If so, determine that the sleeper is in the position to be detected, and enter the step of obtaining the current temperature of the sleeper during sleep;

If not, return to the step of judging whether the multiple current temperatures of the sleeper acquired by the multiple temperature sensors during the sleep process are all greater than the temperature threshold.

Preferably, the sleep process includes a deep sleep process;

The process of determining the minimum comfortable temperature threshold is as follows:

At a preset time before the N sleepers to be tested enter the deep sleep process respectively, acquiring the test temperatures of the N sleepers to be tested under different preset ambient temperatures;

The minimum value of the N test temperatures is used as the minimum comfortable temperature threshold, where N is a positive integer.

Preferably, the determination process of the preset time is:

Take the moment when the current temperature of the sleeper to be tested is lower than the minimum comfortable temperature threshold as the starting moment, and take the moment when the sleeper to be tested is woken up from cold as the ending moment; wherein, between the starting moment and the At all times between the termination times, the current temperature of the sleeper to be tested is lower than the minimum comfortable temperature threshold;

Acquiring N described start moments of N described sleepers to be tested and N end moments corresponding to N described start moments one-to-one;

N test times are determined based on the N starting moments of the N described sleepers to be tested and the N ending moments corresponding to the N starting moments one-to-one;

The minimum value of the N test times is used as the preset time, where N is a positive integer.

In order to solve the above-mentioned technical problems, the present invention also provides a temperature control system, comprising:

memory for storing computer programs;

The processor is configured to implement the steps of the above-mentioned temperature control method when executing the computer program.

Preferably, the temperature control system further includes:

A temperature sensor arranged on the quilt and connected to the processor is used to determine the current temperature of the sleeper during sleep and the test temperature of the sleeper to be tested, so that the processor can obtain the current temperature and the test temperature;

An air conditioner controller connected to the processor is configured to control the air conditioner to perform corresponding temperature adjustment based on a control command sent by the processor.

Preferably, the temperature control system further includes:

A gateway coordinator connected to the temperature sensor, the processor and the air conditioner controller, for storing the data collected by the temperature sensor, and implementing the processing between the temperature sensor and the processor communication between the air conditioner and the air conditioner controller;

The data collected by the temperature sensor includes the current temperature of the sleeper during sleep and the test temperature of the sleeper to be tested.

The present invention provides a temperature control method. In this solution, the processor first obtains the current temperature of the sleeper during sleep, and if the duration of the current temperature lower than the minimum comfortable temperature threshold is greater than the preset time, it means that the sleeper is in It is cold during the sleep process. At this time, the processor sends a control command to the air conditioner controller, so that the air conditioner can adjust the temperature accordingly based on the control command. It can be seen that this method can monitor the current temperature of the sleeper in real time during the sleep process, and then judge whether the sleeper feels cold during the sleep process. Improves sleep comfort and sleep quality.

The present invention also provides a temperature control system, which has the same beneficial effects as the above temperature control method.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the prior art and the accompanying drawings required in the embodiments. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the process flow diagram of a kind of temperature control method provided by the present invention;

2 is a schematic diagram of a sensor distribution location provided by the present invention;

Fig. 3a is the relation diagram of the sleep state of the subject and the average heart rate change in the typical scene 1 provided by the present invention;

Fig. 3b is the relation diagram between the sleep state and the average heart rate variation of the subject in the typical scene 2 provided by the present invention;

Fig. 3c is the relation diagram of the sleep state of the subject and the average heart rate change in the typical scene 3 provided by the present invention;

Figure 4a is a schematic front view of a temperature sensor provided by the present invention;

4b is a schematic diagram of the back of a temperature sensor provided by the present invention;

4c is a schematic side view of a temperature sensor provided by the present invention;

Figure 5a is a schematic front view of a temperature sensor housing provided by the present invention;

5b is a schematic diagram of the back of a temperature sensor housing provided by the present invention;

5c is a schematic side view of a temperature sensor housing provided by the present invention;

6a is a schematic diagram of the sleep state and temperature change of the sleeper to be tested under typical scenario 1 provided by the present invention;

6b is a schematic diagram of the sleep state and temperature change of the sleeper to be tested under typical scenario 2 provided by the present invention;

6c is a schematic diagram of the sleep state and temperature change of the sleeper to be tested under typical scenario 3 provided by the present invention;

7 is a schematic diagram of the temperature distribution of the temperature sensor 5 minutes before the sleeper to be tested enters a deep sleep process provided by the present invention;

8 is a schematic diagram of the temperature distribution of the temperature sensor 5 minutes before the sleeper to be tested is woken up from cold according to the present invention;

9 is a schematic structural diagram of an air-conditioning controller provided by the present invention;

FIG. 10 is a schematic structural diagram of a gateway coordinator provided by the present invention.

Detailed ways

The core of the present invention is to provide a temperature control method and system, which can monitor the current temperature of the sleeper in real time during the sleep process, and then determine whether the sleeper feels cold during the sleep process. When it is cold, the temperature control of the air conditioner is automatically realized, which improves the comfort and sleep quality of the sleeping process.

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIGS. 1 and 2, FIG. 1 is a process flow diagram of a temperature control method provided by the present invention, FIG. 2 is a schematic diagram of a sensor distribution position provided by the present invention, and FIG. 3a is a typical scenario 1 provided by the present invention. Figure 3b is the relationship diagram between the sleep state and the average heart rate change of the subject in the typical scene 2 provided by the present invention, and Figure 3c is the typical scene 3 provided by the present invention. Plot of sleep status versus mean heart rate change in subjects in .

The method includes:

S11: Obtain the current temperature of the sleeper during sleep;

S12: Determine whether the duration for which the current temperature is lower than the minimum comfortable temperature threshold is greater than the preset time;

If so, enter S13:

S13: Send a control command to the air conditioner controller, so that the air conditioner performs corresponding temperature adjustment based on the control command;

If not, return to step S11.

Modern society has higher and higher requirements for quality of life, and high-quality sleep is related to people's mental state, work efficiency and physical health. About one-third of a person's life is spent in sleep, and good sleep is essential to maintaining human physical and mental health. However, during sleep, the metabolic state of the human body will gradually slow down from the initial exuberant state. Therefore, the air conditioner temperature set according to the lower heat demand temperature in the early stage of sleep will increase with the increase of the heat demand temperature in the middle and later stages of sleep, causing the human body to feel colder. , sleep interruption and other problems, affecting the quality of sleep. Air conditioners are common high-energy-consuming devices in homes, and the lower set temperature also increases energy consumption to a certain extent, which is not conducive to environmental protection and energy conservation and emission reduction. In addition, some of the existing technical solutions need to add a communication module to the air conditioner, which does not conform to the reality that most air conditioners on the market currently do not support communication modules.

Based on this, in this embodiment, the processor first obtains the current temperature of the sleeper during sleep, and if the duration of the current temperature lower than the minimum comfortable temperature threshold is greater than the preset time, it means that the sleeper feels biased during sleep. Cold, at this time, the processor sends a control command to the air conditioner controller, so that the air conditioner performs corresponding temperature adjustment based on the control command.

It should be noted that the temperature control system usually further includes a temperature sensor capable of monitoring the indoor ambient temperature. The air conditioner performs corresponding temperature adjustment based on the control command. Specifically, if the ambient temperature is ≤25.5°C, the processor adjusts the air conditioner temperature to 26°C, and the air conditioner mode is mode cooling and automatic wind speed; if 25.5°C < ambient temperature ≤ 26.5°C, the processor Adjust the air conditioner temperature to 27°C, the air conditioner mode is mode cooling, and the air speed is automatic; if 26.5°C < ambient temperature ≤ 27.5°C, the processor adjusts the air conditioner temperature to 28°C, and the air conditioner mode is mode cooling, and the air speed is automatic; if the ambient temperature is greater than or equal to 27.5°C , the processor regulates the air-conditioning temperature to 28°C, the air-conditioning mode is mode cooling, and the wind speed is one level.

Of course, the corresponding temperature adjustment performed by the air conditioner based on the control command is not limited to the above-mentioned manner, which is not particularly limited in this application.

In summary, this method can monitor the current temperature of the sleeper in real time during sleep, and then judge whether the sleeper feels cold during sleep, and automatically adjust the temperature of the air conditioner when it is determined that the sleeper feels cold during sleep. , improve the comfort and sleep quality of the sleep process.

Please refer to Figure 4a, Figure 4b, Figure 4c, Figure 5a, Figure 5b, Figure 5c, Figure 6a, Figure 6b and Figure 6c, Figure 4a is a schematic front view of a temperature sensor provided by the present invention, Figure 4b is provided by the present invention Figure 4c is a schematic side view of a temperature sensor provided by the present invention, Figure 5a is a front schematic view of a temperature sensor housing provided by the present invention, and Figure 5b is a temperature sensor provided by the present invention. A schematic diagram of the back of the sensor housing, Figure 5c is a schematic side view of a temperature sensor housing provided by the present invention, Figure 6a is a schematic diagram of the sleep state and temperature changes of a sleeper to be tested under Typical Scenario 1 provided by the present invention, and Figure 6b is a schematic diagram of Figure 6c is a schematic diagram of the sleep state and temperature change of the sleeper to be tested under typical scenario 3 provided by the present invention.

On the basis of the above-mentioned embodiment:

As a preferred embodiment, acquiring the current temperature of the sleeper during sleep includes:

The temperature of the quilt covered by the sleeper acquired by the temperature sensor is taken as the current temperature of the sleeper during the sleep process.

It should be noted that physiologically, when the human body reaches a comfortable state, the human body is in no thermoregulatory activities (no chills and sweat secretion, etc.), the peripheral blood flow is moderate, and there is no excessive heat loss or heat storage in the body. , the subjective feeling is good, and the human body is in a balanced state with the least energy consumption. Most of the heat of the sleeping human body is lost through thermal radiation, heat conduction and heat convection with the environment, followed by water evaporation, and the proportion of heat lost by other means such as breathing is very small. Bedding materials, mat materials, human metabolic rate, ambient temperature and humidity and other factors will have an impact on the comfort of the sleeping human body.

The current research on related thermal comfort models is mainly carried out on the awake human body, which can be used to predict the thermal response of the human body before falling asleep and when waking up. However, the thermal comfort requirements of the sleeping state of the human body will be different from that of the waking state. Therefore, this project collects data such as sleep state, sleep quality, heart rate, indoor environment temperature and humidity, and blanket environment temperature and humidity under real sleep conditions to establish a human thermal comfort zone-air conditioning control logic model that can be applied to real sleep stages. In this way, it helps to recognize and predict the thermal comfort zone of the human body during sleep, control the air conditioner to adjust the indoor environment, and ensure the comfort of the sleep process.

In this protocol, three healthy adult male subjects were selected first, with an age range of 21-35 years old, and a BMI (Body Mass Index, body mass index) range of 21.3±1.4. Test materials include quilts, mattresses, four-piece sets, pillows, mats and short-sleeved pajamas. The collection is performed by implanting micro temperature and humidity sensors on the silk quilt cover (commonly known as the inner liner). Considering that there may be differences in the temperature near the human chest, abdomen and legs, the number of sensor implantation is set to 3, and the longitudinal direction is It is arranged along the middle line, and the horizontal is divided into three equal sections. The specific position is shown in Figure 2.

During the real sleep process at night, the experimenter wears the Mi Band 2 on the wrist to collect the sleep state and heart rate data at night. After the sleep test, the third-party mobile application "Mi Band Notify" is used to synchronize the relevant test data in the Mi Band, and Use "Mi Band Notify" to analyze sleep and heart rate data. The sleep analyzer version is 4.7, and the sleep analysis level is selected to be ultra-accurate. After the analysis is completed, data such as sleep quality evaluation, sleep state, and average heart rate during the sleep state period are generated.

In the actual sleep test, it was found that the subjects generally controlled the temperature of the air conditioner at 25°C or 26°C during the sleep preparation stage. During the sleep process at night, they would automatically increase the temperature of the air conditioner due to the cold feeling. From the results of many sleep tests, we screened out the Mi Band Notify software's comprehensive sleep quality evaluation results as good, and the Xiaomi Sports APP sleep evaluation score of more than 80 points, and sorted out 3 typical scenarios as follows:

Typical scenario 1: The temperature of the air conditioner is 25°C in the sleep preparation stage. After the subject feels cold during sleep, the temperature of the air conditioner is adjusted to 27°C;

Typical scenario 2: The temperature of the air conditioner is 25°C during the sleep preparation stage. After feeling cold during sleep, the subject adjusts the air conditioner to 26°C independently. After waking up from the cold again in the middle of the night, the subject adjusts it to 27°C. it is good;

Typical Scenario 3: The temperature of the air conditioner is 26°C during the sleep preparation stage. After feeling cold during sleep, the subject independently adjusts the air conditioner to 27°C, and the comprehensive evaluation result of sleep quality is good.

The test data of these typical scenes with good and representative sleep quality evaluation results are analyzed. As can be seen from Figure 3a, Figure 3b and Figure 3c, the sleep data analysis results of the bracelet include three types of sleep: awake, light sleep and deep sleep. state. After the subjects pass through the sleep preparation stage (wake up), they enter a sleep state alternating between light sleep and deep sleep, and the number, duration, and time of occurrence of deep sleep are not fixed.

In addition, there is some regularity between average heart rate and sleep stages during sleep. The average heart rate in the sleep preparation stage (awake) is relatively the highest, reaching about 65bpm; after entering the sleep state, the average heart rate generally decreases and stabilizes, and most of them fluctuate at a low level of about 50bpm during sleep; the valley bottom of the average heart rate is often in the deep During the sleep period, the subjects will wake up due to the coldness of the body, and the sleep interruption will occur, and the average heart rate will rise rapidly during the awake period, exceeding 60bpm, and will drop to a lower level after falling asleep again.

Since there is a strong correlation between human heart rate and metabolism, it can be proved that the human metabolism is relatively high in the sleep preparation stage (awake), and the human metabolism is relatively low after entering the sleep state.

As a preferred embodiment, there are multiple temperature sensors;

Before getting the sleeper's current temperature during sleep, it also includes:

Determine whether the multiple current temperatures of the sleeper acquired by multiple temperature sensors during the sleep process are all greater than the temperature threshold;

If so, determine that the sleeper is in the position to be detected, and enter the step of obtaining the current temperature of the sleeper during sleep;

If not, return to the step of judging whether multiple current temperatures of the sleeper acquired by multiple temperature sensors during the sleep process are all greater than the temperature threshold.

Considering that only when the sleeper is in the position to be detected, the sensor can detect a more accurate temperature value. In this solution, if multiple current temperatures of the sleeper during sleep acquired by multiple temperature sensors are all greater than the temperature threshold, it is determined that the sleeper is in the position to be detected, and then the current temperature of the sleeper during sleep is obtained, And determine whether the duration of the current temperature lower than the minimum comfortable temperature threshold is greater than the preset time, and then determine whether the temperature of the air conditioner needs to be adjusted.

It should be noted that, considering the normal range of human body temperature, the temperature threshold here is usually set to 30.4°C, that is, when multiple current temperatures of the sleeper acquired by multiple temperature sensors during sleep are all higher than 30.4°C, then It is determined that the sleeper is in the position to be detected.

Of course, the temperature threshold here is not limited to be set to 30.4°C, and the specific value of the temperature threshold can be set according to the actual situation, which is not specifically limited in this application.

It should also be noted that the plurality of sensors here are arranged close to the chest, abdomen and legs of the human body, respectively. Of course, the location of the sensors is not limited to this method, and is not specifically limited in this application.

Please refer to FIG. 7 , which is a schematic diagram of the temperature distribution of the temperature sensor 5 minutes before the sleeper to be tested enters a deep sleep process provided by the present invention.

As a preferred embodiment, the sleep process includes a deep sleep process;

The process of determining the minimum comfortable temperature threshold is as follows:

At a preset time before the N sleepers to be tested enter the deep sleep process respectively, obtain the test temperatures of the N sleepers to be tested under different preset ambient temperatures;

The minimum value of N test temperatures is taken as the minimum comfortable temperature threshold, where N is a positive integer.

In the prior art solution, the minimum comfortable temperature threshold is set by experience, and the comfortable temperature range of the sleeping human body is not obtained through the corresponding test method, and then the minimum comfortable temperature threshold is set. In addition, according to the test results of this research group, under the temperature condition of 20-28 degrees of the quilt in the prior art solution, the sleeping human body is in a relatively cold state and cannot maintain the sleep state at all, and the temperature threshold is not accurate. In addition, the temperature of the layer during sleep fluctuates, and if it is regulated below a certain temperature threshold, it will lead to constant misregulation during sleep, and the technical solution is unreasonable.

In this embodiment, at a preset time before the N sleepers to be tested enter the deep sleep process respectively, the test temperatures of the N sleepers to be tested under different preset ambient temperatures are obtained, and the minimum of the N test temperatures is determined as the value as the minimum comfort temperature threshold.

It should be noted that, considering that the human body needs to have a good temperature environment during the process of deep sleep, the sensor temperature 5 minutes before the process of deep sleep is selected as the reference interval for the temperature of human body heat demand during the sleep process. Of course, the preset time before the sleeper to be tested enters the deep sleep process is not limited to 5 minutes before the deep sleep process, which is not specifically limited in this application.

In addition, since there are many movements in the posture of the human body and the temperature fluctuates greatly, the temperature of the sensor near the chest and abdomen of the human body is mainly analyzed:

Sensors close to the human chest may be higher than 33.3°C or lower than 30.4°C when the indoor ambient temperature is lower than 25.5°C. This is because the indoor ambient temperature is below 25.5°C. When the air conditioner is set to 25°C in the early stage of sleep, the metabolism of the human body is relatively strong in the early stage of sleep, and more heat is generated, so the temperature will be higher. When the temperature is lower than 30°C, it is due to the fact that the human body will have a lower heat demand temperature in the early stage of sleep, and the subject will appear to pull down the quilt covering the upper body, resulting in a decrease in the temperature of the sensor near the human chest.

The temperature of the sensor near the human abdomen is relatively stable, maintained within the range of 30.4°C to 33.3°C. This is because the human abdomen is in the center of the quilt microenvironment, and the hot air environment of the sensor attachment is relatively stable. In addition, the surface area of the human abdomen is large, and the distance between the sensor and the heat source of the human body changes relatively little, which also improves the temperature stability to a certain extent. In addition, when the indoor ambient temperature rises to the range of 26°C-27°C in the middle and late stages of sleep, the metabolism of the human body slows down, and the temperature fluctuation of the chest sensor decreases, which is also within the range of 30.4°C-33.3°C.

Therefore, a sensor near the abdomen is selected to obtain the test temperatures of N sleepers to be tested under different preset ambient temperatures, and the minimum value of the N test temperatures is used as the minimum comfortable temperature threshold.

Please refer to FIG. 8 . FIG. 8 is a schematic diagram of the temperature distribution of the temperature sensor 5 minutes before the sleeper to be tested is awakened from cold according to the present invention, wherein the temperature sensors are respectively distributed on the chest and abdomen of the sleeper to be tested.

As a preferred embodiment, the determination process of the preset time is:

The moment when the current temperature of the sleeper to be tested is lower than the minimum comfortable temperature threshold is taken as the start time, and the moment when the sleeper to be tested is cold awakened as the end moment; , the current temperature of the sleeper to be tested is lower than the minimum comfortable temperature threshold;

Obtain N start times of the N sleepers to be tested and N end times corresponding to the N start times one-to-one;

N test times are determined based on the N start times of the N sleepers to be tested and the N end times corresponding to the N start times one-to-one;

The minimum value of N test times is used as the preset time, where N is a positive integer.

In this embodiment, a specific implementation manner of determining the preset time is provided. Specifically, the minimum value of the time from when the current temperature of the N sleepers to be tested is lower than the minimum comfortable temperature threshold until the time when the sleeper to be tested is awakened from cold is taken as the preset time.

It should be noted that the preset time here is usually 10 minutes, but is not limited to 10 minutes, which is not particularly limited in this application.

For example, the indoor ambient temperature of the sleeper to be tested 5 minutes before being woken up from freezing is in the lower range of 24.5-25.4 °C, and the sensor temperature of the chest and abdomen does not exceed 32 °C. Comparing with the aforementioned thermal comfort temperature range of 30.4°C-33.3°C, one or more of the chest or abdomen sensor temperatures 5 minutes before being woken up from the freezer are lower than the lower limit of the thermal comfort temperature range of 30.4°C, and the distance from the last chest and abdomen sensor temperature is 30.4°C. All higher than 30.4 ℃ time, between 15min-24min. Therefore, one or more of the chest and abdomen sensor temperatures are lower than 30.4°C, and the duration is more than 10 minutes, as the judgment condition for judging that the human body may be awakened by cold.

The present invention also provides a temperature control system, comprising:

memory for storing computer programs;

The processor is configured to implement the steps of the above temperature control method when executing the computer program.

For the introduction of a temperature control system provided by the present invention, please refer to the above-mentioned embodiments of the present invention, which will not be repeated in the present invention.

Please refer to FIG. 9 and FIG. 10 , FIG. 9 is a schematic structural diagram of an air conditioner controller provided by the present invention, and FIG. 10 is a structural schematic diagram of a gateway coordinator provided by the present invention.

On the basis of the above-mentioned embodiment:

As a preferred embodiment, the temperature control system further includes:

A temperature sensor arranged on the quilt and connected to the processor is used to determine the current temperature of the sleeper during sleep and the test temperature of the sleeper to be tested, so that the processor can obtain the current temperature and the test temperature;

The air conditioner controller connected to the processor is used to control the air conditioner to perform corresponding temperature adjustment based on the control command sent by the processor.

It should be noted that the collector terminal mainly completes temperature and humidity acquisition and Zigbee communication, and the terminal is designed on a PCB board with a diameter of 27mm. The processor chooses to use the low-power CC2530F256 chip. CC2530F256 is a system-on-a-chip solution based on 2.4GHz IEEE802.15.4 and ZigBee RFCCEs. It is characterized by the establishment of relatively powerful network nodes with extremely low material costs. CC2530F256 chip combines wireless radio frequency transceiver, increased 8051CPU, 256KB flash memory, 8-KB low-power SRAM, two USART interfaces, 18 interrupt sources and other resources. CC2530F256 is mainly used for ZigBee communication and data processing. The temperature and humidity use SHT35 low-power sensor, the temperature accuracy is ±0.2℃, and the humidity accuracy is ±1.5%RH. The power supply is powered by a 240mAH CR2032 button battery, which sends temperature and humidity data to the gateway coordinator every minute, and can work for 3 years. In actual operation, in order to prolong the working time of the battery, for example, the temperature and humidity do not change within 5 minutes and do not send data, so the actual working time of the battery is more than 3 years. The sensor housing is made of 3D printing, and the design model and finished product are shown in Figure 2. The shell model is designed with Unigraphics NX10.0 software, the material wall thickness is 1mm, the internal chamber diameter is 27mm, the height is 5.6mm, the number of ventilation holes is 9, the distance between the centers of the circles is 7.5mm, and the aperture is 2mm. After the model design is completed, it is imported into a 3D printer for printing, and the consumables are made of high-strength resin. When assembling, first use double-sided tape to stick the battery card slot on the back of the sensor to the middle of the non-porous casing, and then cover the casing with holes to complete the assembly.

Of course, the sensor here is not limited to the above-mentioned design, and is not limited in this application.

It should also be noted that the air-conditioning controller terminal is mainly composed of an on-chip system, an infrared emission tube, and a power supply module. The working block diagram is shown in Figure 6. The air conditioner controller terminal accepts the command of the gateway coordinator, and converts it into the code of the infrared light emitting tube that can control the air conditioner, so as to achieve the purpose of controlling the output of the air conditioner. 7 infrared light-emitting tubes are used, and each light-emitting tube has certain installation requirements. One of the light-emitting tubes is perpendicular to the top layer of the PCB, and the other 6 light-emitting tubes are installed every 60 degrees. Evenly form a 45-degree angle with the top surface of the PCB. When the air conditioner controller terminal is placed in the application place, it is easy to find the position where the infrared coded light is sent to the infrared receiver of the controlled air conditioner.

Of course, the air-conditioning controller here is not limited to the above-mentioned design, and is not specifically limited in this application.

As a preferred embodiment, the temperature control system further includes:

The gateway coordinator connected with the temperature sensor, the processor and the air conditioner controller is used to store the data collected by the temperature sensor and realize the communication between the temperature sensor and the processor, and between the processor and the air conditioner controller;

The data collected by the temperature sensor includes the current temperature of the sleeper during sleep and the test temperature of the sleeper to be tested.

It should be noted that the gateway coordinator here is mainly composed of CC2530 SoC, WIFI module, memory, and power module. The working block diagram is shown in Figure 4. The gateway coordinator communicates with the collector terminal using ZigBee to complete the reception of the temperature and humidity information of each terminal. The gateway coordinator communicates with the cloud platform using WIFI, and the gateway coordinator packages the acquired temperature and humidity data to the cloud platform server in the WAN. The gateway coordinator communicates with the air conditioner controller terminal using ZigBee. The gateway analyzes the collected temperature and humidity according to the logic judgment model and sends commands to the air conditioner controller terminal to realize the temperature value required by the air conditioner controller to control the air conditioner output. The memory is used to store operating parameters and user-specific data.

Of course, the gateway coordinator here is not limited to the above-mentioned design manner, which is not specifically limited in this application.

In addition, according to the analysis of project requirements, the project uses Tencent cloud platform to build servers. The cloud platform has significant advantages such as continuous online, continuous operation, and free offline maintenance. By placing the logic operation in the cloud, there is no need to open and run the APP on the mobile phone all the time, which meets the requirements of consumer use scenarios. In addition, through the use of cloud servers, more functions such as remote viewing of data and remote control of equipment can be realized. The server version in the cloud platform selects windows Server2012R2, the server project code mainly includes chat management (ChatManager, ChatSocket), message processing (Handle Message, HandleString), APP communication management (MyAPP) and gateway communication management (WangGuanMsg), server public IP address is 129.211.118.207.

The project establishes the software and hardware communication between the gateway and the server based on Java Socket. Socket communication is a transmission method based on the TCP/IP network layer. The server initializes the ServerSocket, and then binds the specified port, and then the port and the Listening, blocking by calling the accept method. At this time, only the mobile phone and the gateway are required to connect to the server as the client, then the server can connect with the client through the monitoring and accept methods to achieve two-way communication, and play the role of a transit station.

The specific workflow is:

(1) Data reception: The gateway coordinator is equipped with a cloud wifi module, and the temperature and humidity data is packaged and sent to the public IP of the server in the wide area network through WIFI. After receiving the data, the cloud server parses and uses it according to the corresponding data format.

(2) Data analysis: Based on the logical model established by the project, the cloud server analyzes the temperature and humidity data uploaded by the gateway to the cloud server. When the temperature change of the user's layer is monitored and reaches the trigger condition of the logical model, the cloud server will take the initiative to send the data to the cloud server. The gateway sends corresponding instructions to let the gateway control the remote controller of the air conditioner connected to it, so as to control the air conditioner.

(3) Air conditioning regulation: After the gateway coordinator receives the control command from the cloud server, it parses the command data according to the corresponding format, and then controls the air conditioner remote control to regulate the temperature, wind speed, mode and other parameters of the household air conditioner.

Of course, it is not limited to building a server through the Tencent cloud platform, and this application does not make any special limitation here.

In addition, the project uses Android studio to develop native applications. The Android platform supports a large number of graphics and animations, which is conducive to the design of the chart structure required by the project itself. The developed application is not stuck, has fast response, high compatibility, and rarely crashes. It can also prevent the emergence of viruses and loopholes, and can use the interface provided by the device more quickly, which also has advantages in processing speed. In addition, the native APP supports message push, so that users have the right to choose whether to receive messages or not during the use process, support access to device files and hardware, programs are stored locally, and most functions can be used without the need for networking. The current Android platform and iOS platform are already compatible with each other, so the portability problem has been solved, and there is no need to develop Android and iOS separately.

According to the project demand analysis, the business processes that the APP needs to meet include: (1) Condition monitoring. The mobile phone APP receives the temperature and humidity data sent by the cloud server, and reflects the real-time temperature change through the numerical value and the long-term temperature change through the curve graph. (2) Threshold adjustment. It is allowed to adjust the logic temperature lower limit and time threshold preset in the software, and feedback the adjustment to the cloud server (3) for device control. The APP can manually control the temperature, mode, wind speed and other parameters of the household air conditioner with the help of cloud server, gateway coordinator and air conditioner controller.

1) Status monitoring: The mobile APP is bound to the public network IP address of the cloud server and the corresponding open port number. If there is a network problem with the server, the APP will prompt the connection failure. The chart display adopts MPAndroidChart, which is a powerful and easy-to-use chart library in the Android platform, supports line chart, column chart, scatter chart, candle chart, bubble chart, pie chart and spider web chart, supports zoom, Drag (pan), selection and animation for all currently released Android phones on the market.

2) Threshold adjustment: The lower temperature limit of the comfort zone and the corresponding duration threshold are important indicators for predicting the user's current sleep experience. However, because there are certain differences between individual consumers and their environment, the mobile APP needs to support users in the cloud server. The preset comfort zone lower limit temperature threshold is adjusted, and the adjustment is fed back to the cloud server, so as to better meet the individual needs of different users.

3) Device control: Users can enter the control interface through "My Air Conditioner" on the APP to manually control the air conditioner. In addition, the product's cloud server transit architecture solves the distance limitation of regulation and enables consumers to remotely control the air conditioner.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

Professionals may further realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two, in order to clearly illustrate the possibilities of hardware and software. Interchangeability, the above description has generally described the components and steps of each example in terms of functionality. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

The above description of the disclosed embodiments enables any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A method of temperature control, the method comprising:

acquiring the current temperature of a sleeper in the sleeping process;

judging whether the duration time that the current temperature is lower than the lowest comfortable temperature threshold value is longer than preset time or not;

if so, sending a control command to an air conditioner controller so that the air conditioner can carry out corresponding temperature adjustment based on the control command;

if not, returning to the step of acquiring the current temperature of the sleeper in the sleeping process;

the sleep process comprises a deep sleep process;

the determination process of the lowest comfortable temperature threshold value comprises the following steps:

acquiring test temperatures of N sleepers to be tested at preset different environmental temperatures at preset moments before the N sleepers to be tested respectively enter the deep sleep process;

taking the minimum value of N test temperatures as the lowest comfortable temperature threshold, wherein N is a positive integer;

the process of determining the preset time comprises the following steps:

taking the moment when the current temperature of the sleeper to be tested is lower than the lowest comfortable temperature threshold value as an initial moment, and taking the moment when the sleeper to be tested is awakened cold as a termination moment; wherein, at all times between the starting time and the ending time, the current temperature of the sleeper to be tested is lower than the lowest comfortable temperature threshold;

acquiring N starting moments of N sleepers to be detected and N ending moments corresponding to the N starting moments one by one;

determining N test times based on N starting moments of N sleepers to be tested and N ending moments which are in one-to-one correspondence with the N starting moments;

and taking the minimum value of the N test times as the preset time, wherein N is a positive integer.

2. The temperature control method of claim 1, wherein acquiring the current temperature of the sleeper during sleep comprises:

and taking the layer temperature of the cover of the sleeper acquired by the temperature sensor as the current temperature of the sleeper in the sleeping process.

3. The temperature control method according to claim 2, wherein the temperature sensor is plural;

before acquiring the current temperature of the sleeper in the sleeping process, the method further comprises the following steps:

judging whether a plurality of current temperatures of the sleeper obtained by the plurality of temperature sensors in the sleeping process are all larger than a temperature threshold value;

if so, judging that the sleeper is in a position to be detected, and entering the step of acquiring the current temperature of the sleeper in the sleeping process;

if not, returning to the step of judging whether the current temperatures of the sleeper acquired by the temperature sensors in the sleeping process are all larger than the temperature threshold.

4. A temperature control system, comprising:

a memory for storing a computer program;

a processor for implementing the steps of the temperature control method according to any one of claims 1 to 3 when executing the computer program.

5. The temperature control system of claim 4, further comprising:

the temperature sensor is arranged on the quilt and connected with the processor and used for determining the current temperature of the sleeper in the sleeping process and the testing temperature of the sleeper to be tested so that the processor can obtain the current temperature and the testing temperature;

and the air conditioner controller is connected with the processor and is used for controlling the air conditioner to carry out corresponding temperature adjustment based on the control command sent by the processor.

6. The temperature control system of claim 5, further comprising:

the gateway coordinator is connected with the temperature sensor, the processor and the air conditioner controller and is used for storing data acquired by the temperature sensor and realizing communication between the temperature sensor and the processor and communication between the processor and the air conditioner controller;

the data collected by the temperature sensor comprise the current temperature of the sleeper in the sleeping process and the testing temperature of the sleeper to be tested.

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