Monitoring system for internal and external temperature, humidity and oxygen content of intelligent door lock

Abstract

The invention discloses a monitoring system for internal and external temperature, humidity and oxygen content of an intelligent door lock. The system comprises a door lock monitoring module used for detecting environment indexes; the Internet of Things module is used for sending the environment indexes to the back-end module; the back-end module is used for receiving the environment indexes and carrying out data analysis processing; and the terminal module is used for displaying the analyzed and processed environment indexes to a user and receiving control information from the user. According to the intelligent door lock, the Internet of Things system is added to the intelligent door lock, monitoring of the temperature, humidity and oxygen content of the two sides of the door lock is provided for a user, and the user can know the difference of indoor and outdoor parameters at any time and better prepare for going out or going home.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things, and in particular to a monitoring system for internal and external temperature, humidity and oxygen content of an intelligent door lock. Background Art

[0002] Internet of Things technology refers to the use of 5G, Bluetooth, Lora, NB-Iot, wired transmission and other technologies to bring together household appliances, sensors, industrial machinery and other equipment into a network to achieve data collection, process control and equipment monitoring of all devices. On this basis, it realizes the interconnection and interaction between things and things, and things and people.

[0003] Most of the door locks on the market now focus on the design and manufacturing of the material, convenience, security, intelligence and other aspects of the door lock; and users also focus on whether the door lock is beautiful, whether the material feels comfortable, whether it is convenient to unlock, such as fingerprint, password unlocking, etc., and whether the security level of the door lock is high enough; along with the Internet of Things smart furniture system, most systems are similar, they are similar functional systems, and the system is set and developed around the needs of users, but often adding some other functions to the door lock system can bring some different experiences to users. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the present invention provides a monitoring system for the temperature, humidity and oxygen content inside and outside a smart door lock to solve the technical problem that the traditional smart door lock has a relatively single function.

[0005] A monitoring system for temperature, humidity and oxygen content inside and outside a smart door lock, comprising:

[0006] Door lock monitoring module, used to detect environmental indicators;

[0007] An Internet of Things module, used for sending the environmental indicators to a back-end module;

[0008] A back-end module is used to receive the environmental indicators and perform data analysis and processing;

[0009] The terminal module is used to display the environmental indicators after analysis and processing to the user and receive control information from the user.

[0010] Preferably, the door lock monitoring module includes:

[0011] The environmental indicators include indoor temperature, outdoor temperature, indoor air humidity, outdoor air humidity, indoor air composition and indoor air composition concentration;

[0012] The door lock monitoring module adjusts and controls the sensitivity and switch of the temperature sensor, humidity sensor and gas sensor according to the operation instruction.

[0013] Preferably, the door lock monitoring module further includes:

[0014] A temperature sensor, used to obtain the indoor temperature and the outdoor temperature;

[0015] A humidity sensor, used to obtain the indoor air humidity and the outdoor air humidity;

[0016] The gas sensor is used to obtain the indoor air components and the concentrations of the indoor air components.

[0017] Preferably, the Internet of Things module is used for:

[0018] Receiving the environmental indicator and forwarding the environmental indicator to the back-end module;

[0019] Receive an operation instruction from the back-end module, and forward the operation instruction to the door lock detection module.

[0020] Preferably, the backend module is used for:

[0021] Processing the environmental indicators to obtain environmental information;

[0022] storing the environmental information;

[0023] Receiving operation information from the terminal module;

[0024] Processing the operation information to obtain an operation instruction;

[0025] According to the operation instruction, the environmental information is sent to the terminal module.

[0026] Preferably, the terminal module is used for:

[0027] Receive operation information input by the user;

[0028] Sending the operation information to the back-end module;

[0029] Accessing the environmental information stored in the back-end module according to the operation instruction;

[0030] The environmental information is presented to the user.

[0031] Preferably, the processing of the environmental indicators to obtain environmental information includes:

[0032] Set the threshold for low oxygen content and dangerous concentration of combustible gas;

[0033] When the gas sensor detects that the oxygen content is lower than the low oxygen content threshold, a low oxygen content alarm is issued;

[0034] When the gas sensor detects that the combustible gas concentration is higher than the combustible gas dangerous concentration threshold, an explosion alarm is issued.

[0035] Preferably, the processing of the environmental indicators to obtain environmental information further includes:

[0036] According to the environmental indicators, forecasting is performed to obtain weather forecast information;

[0037] The weather forecast information, the environmental information, the low oxygen content alarm and the explosion alarm constitute the environmental information.

[0038] Preferably, the terminal module is also used for:

[0039] Receiving the explosion alarm and the low oxygen content alarm, and giving an alarm reminder to the user;

[0040] According to user needs, external IoT signals are sent to control smart furniture in the IoT.

[0041] A method for monitoring temperature, humidity and oxygen content inside and outside a smart door lock, comprising:

[0042] The door lock monitoring module obtains environmental indicators according to the operating instructions;

[0043] The environmental indicators are transmitted to the back-end module through the Internet of Things module for processing, and the environmental information is obtained and stored;

[0044] According to the request information sent by the user, the back-end module sends the environmental information to the terminal module for display.

[0045] The present invention discloses a monitoring system for the temperature, humidity and oxygen content inside and outside of a smart door lock. The system includes a door lock monitoring module for detecting environmental indicators; an Internet of Things module for sending the environmental indicators to a back-end module; a back-end module for receiving the environmental indicators and performing data analysis and processing; and a terminal module for displaying the environmental indicators after analysis and processing to a user and receiving control information from the user. The present invention adds an Internet of Things system to the smart door lock, providing users with monitoring of the temperature, humidity and oxygen content on both sides of the door lock. Users can know the difference between these parameters indoors and outdoors at any time, and better prepare to go out or go home.

[0046] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the drawings required for use in the embodiments of the present invention or the background technology will be described below.

[0048] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and, together with the specification, are used to illustrate the technical solutions disclosed in the present invention.

[0049] Figure 1 A schematic diagram of a monitoring system for temperature, humidity, and oxygen content inside and outside a smart door lock provided by an embodiment of the present invention;

[0050] Figure 2 A flow chart of a method for monitoring temperature, humidity, and oxygen content inside and outside a smart door lock provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0053] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0054] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0055] In addition, in order to better illustrate the present invention, numerous specific details are provided in the following specific embodiments. It should be understood by those skilled in the art that the present invention can be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present invention.

[0056] Internet of Things technology refers to the use of 5G, Bluetooth, Lora, NB-Iot, wired transmission and other technologies to bring together household appliances, sensors, industrial machinery and other equipment into a network to achieve data collection, process control and equipment monitoring of all devices. On this basis, it realizes the interconnection and interaction between things and things, and things and people.

[0057] Most of the door locks on the market now focus on the design and manufacturing of the material, convenience, security, intelligence and other aspects of the door lock; and users also focus on whether the door lock is beautiful, whether the material feels comfortable, whether it is convenient to unlock, such as fingerprint, password unlocking, etc., and whether the security level of the door lock is high enough; along with the Internet of Things smart furniture system, most systems are similar, they are similar functional systems, and the system is set and developed around the needs of users, but often adding some other functions to the door lock system can bring some different experiences to users.

[0058] The present invention discloses a monitoring system for the temperature, humidity and oxygen content inside and outside of an intelligent door lock. The system includes a door lock monitoring module for detecting environmental indicators; an Internet of Things module for sending the environmental indicators to a back-end module; a back-end module for receiving the environmental indicators and performing data analysis and processing; and a terminal module for displaying the environmental indicators after analysis and processing to a user, and receiving control information from the user. The present invention adds an Internet of Things system to the intelligent door lock, providing users with monitoring of the temperature, humidity and oxygen content on both sides of the door lock. When the user is about to go out, the user can check the temperature, humidity and oxygen content, and decide whether to add clothes, wear a mask, bring an umbrella, etc.; when the user is about to go home, the user can check the indoor parameters to determine whether to turn on air purifiers, air conditioners and other household appliances in advance; more importantly, when there are special circumstances such as gas leaks and fires indoors, these parameters can also play a decisive role, and alarms and other operations are performed on the user. The user can know the difference between these parameters indoors and outdoors at any time, and better prepare to go out or go home.

[0059] Example 1

[0060] A monitoring system for temperature, humidity and oxygen content inside and outside smart door locks, reference Figure 1 ,include:

[0061] Door lock monitoring module, used to detect environmental indicators;

[0062] IoT module to send environmental indicators to backend modules;

[0063] The back-end module is used to receive environmental indicators and perform data analysis and processing;

[0064] The terminal module is used to display the analyzed and processed environmental indicators to the user and receive control information from the user.

[0065] Preferably, the door lock monitoring module includes:

[0066] Environmental indicators include indoor temperature, outdoor temperature, indoor air humidity, outdoor air humidity, indoor air composition, and indoor air component concentration;

[0067] The door lock monitoring module adjusts and controls the sensitivity and switch of the temperature sensor, humidity sensor and gas sensor according to the operation instructions;

[0068] The operating instructions include user needs and can control the sensitivity and switching of the gas sensor to different gas detections, thereby achieving the effect of saving energy and optimizing the experience.

[0069] Preferably, the door lock monitoring module further includes:

[0070] Temperature sensor, used to obtain indoor and outdoor temperatures;

[0071] In this embodiment, the temperature sensor uses a thermistor temperature sensor. The thermistor temperature sensor is the most sensitive temperature sensor commonly seen on the market. It is very small in size, has a very fast response speed to temperature changes, does not cause heat load, has high sensitivity, does not ignore the error caused by wire resistance, has accurate measurement results, mature technology, simple structure, and is easy to use. It uses two-wire resistance measurement and can record multiple measurement values ​​at the same time, so the results can be compared intuitively.

[0072] In order to better measure the indoor and outdoor temperatures, thermistor temperature sensors are installed on both sides of the indoor and outdoor shells of the smart door lock to prevent the heat generated by the internal operation of the smart door lock from affecting the temperature measurement accuracy;

[0073] Humidity sensor, used to obtain indoor air humidity and outdoor air humidity;

[0074] In this embodiment, the humidity sensor uses a capacitive humidity sensor;

[0075] Capacitive humidity sensors use the change in capacitance between electrodes to measure humidity. When the water vapor content in the environment increases, the capacitance between the electrodes will change accordingly, thus reflecting the change in ambient humidity.

[0076] Capacitive humidity sensors have fast response speed, small size, good linearity, stability, high accuracy, and fast response speed, and are suitable for most applications;

[0077] In order to better measure indoor and outdoor humidity, thermistor temperature sensors are installed on both indoor and outdoor shells of the smart door lock to prevent the internal humidity of the smart door lock from affecting the temperature measurement accuracy;

[0078] Gas sensors, used to obtain indoor air components and concentrations of indoor air components;

[0079] In this embodiment, the gas sensor includes an oxygen sensor and a combustible gas sensor;

[0080] In this embodiment, the oxygen sensor uses a zirconium oxide oxygen sensor. Zirconium oxide is a typical ion body. It becomes a fast ion conductor of oxygen above 600°C and is called a solid electrolyte. The zirconium oxide oxygen sensor realizes conductivity through oxygen ion vacancies in the lattice. Porous platinum electrodes are sintered on both sides of the zirconium oxide electrolyte. At a certain temperature, when the oxygen concentrations on both sides of the electrolyte are different, the oxygen molecules on the high-concentration side are adsorbed onto the platinum electrode and combined with electrons to form oxygen ions, making the electrode positively charged. The oxygen ions migrate to the platinum electrode with a low oxygen concentration through the oxygen ion vacancies of the electrolyte, release electrons, and are converted into positive molecules, making the electrode negatively charged. This ceramic material is highly sensitive to oxygen and is widely used in oxygen probes.

[0081] In this embodiment, the combustible gas sensor uses a gas sensitive resistor sensor. Whenever a toxic gas is detected, the resistance will change, and the current will also change, thereby detecting the concentration of the combustible gas;

[0082] In a household environment, common combustible gases are natural gas and coal gas. Gas sensors can be customized according to the user's household gas type.

[0083] Preferably, the Internet of Things module is used for:

[0084] Receive environmental indicators and forward them to the backend module;

[0085] Receive operation instructions from the back-end module and forward the operation instructions to the door lock detection module;

[0086] The IoT module is the IoT broker, which is used to receive operation data from door locks and users and is a message forwarding center.

[0087] In this embodiment, the IoT broker, namely the MQTT Broker, is a message middleware that is responsible for receiving and forwarding MQTT messages for communication between clients, and can also provide message persistence so that messages are saved when the client is offline and sent to the client when the client reconnects;

[0088] MQTT is an open, lightweight machine-to-machine protocol designed for IoT interactions. An MQTT network contains an MQTT broker, which is responsible for coordinating interactions between MQTT agents. The broker is a publisher, responsible for publishing information for users to use.

[0089] MQTT can implement a publish-subscribe model using minimal methods to indicate the operations to be performed on a specific topic. The agent first connects to the broker, then publishes or subscribes to the topic. After completion, the agent disconnects from the broker.

[0090] Environmental indicators and operating instructions are transmitted to the cloud via the Internet of Things technology protocol for message forwarding.

[0091] Preferably, the backend module is used to:

[0092] Process environmental indicators to obtain environmental information;

[0093] Store environmental information;

[0094] Receive operation information from the terminal module;

[0095] Process the operation information to obtain the operation instruction;

[0096] According to the operation instructions, the environmental information is sent to the terminal module;

[0097] The back-end system module stores and processes data, making it easier for users to obtain data through the terminal module.

[0098] Preferably, the terminal module is used for:

[0099] Receive operation information input by the user;

[0100] Send operation information to the back-end module;

[0101] Access the environmental information stored in the back-end module according to the operation instructions;

[0102] Display environmental information to users;

[0103] In this embodiment, the terminal module is an APP, and the APP is connected to the back-end module through the Internet.

[0104] Preferably, processing the environmental indicators to obtain environmental information includes:

[0105] Set the threshold for low oxygen content and dangerous concentration of combustible gas;

[0106] When the gas sensor detects that the oxygen content is lower than the low oxygen threshold, a low oxygen alarm is issued;

[0107] In this embodiment, the oxygen content is too low threshold is set to 19.6%, because the oxygen content in the air is about 21%. When the oxygen content is lower than 19.6%, it will affect the human body. When the oxygen content is 19.5% to 12%, human judgment will deteriorate, breathing and pulse will accelerate, fatigue and coordination will deteriorate, affecting human health and safety.

[0108] When the gas sensor detects that the concentration of combustible gas is higher than the combustible gas dangerous concentration threshold, an explosion alarm is issued;

[0109] In case of special situations, these alarms can be used to judge the environment in advance and handle it better;

[0110] In this embodiment, the combustible gases encountered in the home environment are generally coal gas and natural gas, and different combustible gas dangerous concentration thresholds are set according to the type of combustible gas;

[0111] When the combustible gas is coal gas, the combustible gas dangerous concentration threshold is set to 0.06%. Although there is a risk of explosion only when the coal gas concentration is greater than 1.5%, when the coal gas concentration exceeds 0.06%, people may be poisoned by inhaling coal gas;

[0112] When the combustible gas is natural gas, the combustible gas dangerous concentration threshold is set to 4.7%. When the natural gas concentration is greater than 4.7%, there is a risk of explosion.

[0113] Preferably, processing the environmental indicators to obtain environmental information further includes:

[0114] According to environmental indicators, the forecast obtains weather forecast information;

[0115] Based on the outdoor temperature and outdoor humidity, combined with the deviation between the outdoor temperature and the indoor temperature and the deviation between the outdoor humidity and the indoor humidity, the approximate weather conditions can be predicted;

[0116] Weather forecast information, environmental information, low oxygen alarm and explosion alarm constitute environmental information.

[0117] Preferably, the terminal module is further used for:

[0118] Receive explosion alarms and low oxygen alarms and give users warnings;

[0119] According to user needs, send external IoT signals to control smart furniture in the IoT;

[0120] In this embodiment, the terminal module is an APP. In actual use, the Internet of Things generally connects more than just smart door locks. The APP can control other smart furniture or obtain information about other smart homes through the Internet of Things.

[0121] When users receive an explosion alert through the APP, they can use the phone to contact the relevant department for processing;

[0122] When the user receives an alarm about low oxygen content through the APP, the user can control the smart air conditioner for ventilation or the smart air purifier for air purification through the APP and the IoT module;

[0123] When the user finds that the indoor temperature is too low through the APP, the user can control the smart air conditioner or smart heater for heating through the APP and the IoT module;

[0124] When users check through the APP and find that the indoor temperature is too low, they can control the smart air conditioner for cooling through the APP and the Internet of Things module.

[0125] Example 2

[0126] A method for monitoring the temperature, humidity and oxygen content inside and outside the smart door lock, reference Figure 2 ,include:

[0127] S100, the door lock monitoring module obtains environmental indicators according to the operation instruction;

[0128] S200, the environmental indicators are transmitted to the back-end module through the Internet of Things module for processing, and the environmental information is obtained and stored;

[0129] S300, according to the request information sent by the user, the back-end module sends the environmental information to the terminal module for display.

[0130] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0131] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. Those skilled in the art can also clearly understand that the descriptions of the various embodiments of the present invention have different focuses. For the convenience and brevity of description, the same or similar parts may not be repeated in different embodiments. Therefore, for parts not described or not described in detail in a certain embodiment, refer to the records of other embodiments.

[0132] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0133] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0134] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0135] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0136] A person skilled in the art can understand that to implement all or part of the processes in the above-mentioned embodiments, the processes can be completed by a computer program to instruct the relevant hardware, and the program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The aforementioned storage medium includes: a read-only memory (ROM) or a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

Claims

1. A monitoring system for temperature, humidity and oxygen content inside and outside a smart door lock, characterized in that: include: Door lock monitoring module, used to detect environmental indicators; An Internet of Things module, used for sending the environmental indicators to a back-end module; A back-end module is used to receive the environmental indicators and perform data analysis and processing; The terminal module is used to display the environmental indicators after analysis and processing to the user and receive control information from the user.

2. According to claim 1, a monitoring system for temperature, humidity and oxygen content inside and outside the smart door lock is characterized in that: The door lock monitoring module comprises: The environmental indicators include indoor temperature, outdoor temperature, indoor air humidity, outdoor air humidity, indoor air composition and indoor air composition concentration; The door lock monitoring module adjusts and controls the sensitivity and switch of the temperature sensor, humidity sensor and gas sensor according to the operation instruction.

3. A monitoring system for temperature, humidity and oxygen content inside and outside of a smart door lock according to claim 2, characterized in that: The door lock monitoring module further includes: A temperature sensor, used to obtain the indoor temperature and the outdoor temperature; A humidity sensor, used to obtain the indoor air humidity and the outdoor air humidity; The gas sensor is used to obtain the indoor air components and the concentrations of the indoor air components.

4. A monitoring system for temperature, humidity and oxygen content inside and outside a smart door lock according to claim 3, characterized in that: The Internet of Things module is used for: Receiving the environmental indicator and forwarding the environmental indicator to the back-end module; Receive an operation instruction from the back-end module, and forward the operation instruction to the door lock detection module.

5. A monitoring system for temperature, humidity and oxygen content inside and outside of a smart door lock according to claim 4, characterized in that: The back-end module is used for: Processing the environmental indicators to obtain environmental information; storing the environmental information; Receiving operation information from the terminal module; Processing the operation information to obtain an operation instruction; According to the operation instruction, the environmental information is sent to the terminal module.

6. A monitoring system for temperature, humidity and oxygen content inside and outside of a smart door lock according to claim 5, characterized in that: The terminal module is used for: Receive operation information input by the user; Sending the operation information to the back-end module; Accessing the environmental information stored in the back-end module according to the operation instruction; The environmental information is presented to the user.

7. A monitoring system for temperature, humidity and oxygen content inside and outside of a smart door lock according to claim 5, characterized in that: The processing of the environmental indicators to obtain environmental information includes: Set the threshold for low oxygen content and dangerous concentration of combustible gas; When the gas sensor detects that the oxygen content is lower than the low oxygen content threshold, a low oxygen content alarm is issued; When the gas sensor detects that the combustible gas concentration is higher than the combustible gas dangerous concentration threshold, an explosion alarm is issued.

8. A monitoring system for temperature, humidity and oxygen content inside and outside of a smart door lock according to claim 7, characterized in that: The processing of the environmental indicators to obtain environmental information further includes: According to the environmental indicators, forecasting and obtaining weather forecast information; The weather forecast information, the environmental information, the low oxygen content alarm and the explosion alarm constitute the environmental information.

9. A method for monitoring temperature, humidity and oxygen content inside and outside a smart door lock according to claim 8, characterized in that: The terminal module is also used for: Receiving the explosion alarm and the low oxygen content alarm, and giving an alarm reminder to the user; According to user needs, external IoT signals are sent to control smart furniture in the IoT.

10. A method for monitoring the temperature, humidity and oxygen content inside and outside a smart door lock, characterized in that: include: The door lock monitoring module obtains environmental indicators according to the operating instructions; The environmental indicators are transmitted to the back-end module through the Internet of Things module for processing, and the environmental information is obtained and stored; According to the request information sent by the user, the back-end module sends the environmental information to the terminal module for display.

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