Wireless low-power-consumption dust concentration monitoring method and device

Abstract

The invention relates to a wireless low-power-consumption dust concentration monitoring method and device, and belongs to the field of dust concentration detection. By means of an automatic standby time adjusting mechanism, the standby time is automatically adjusted according to factors such as the dust concentration, the monitoring place and concentration fluctuation, low-power-consumption operation of the sensor is achieved, and meanwhile the accuracy and the real-time performance of monitoring data are guaranteed. In addition, a photosensitive diode wake-up circuit is further designed, when a person uses a head lamp to irradiate on site, the sensor can be automatically woken up and continuously work, and debugging and observation by a user are facilitated. According to the invention, intelligent awakening and dormancy of the sensor are realized by using an algorithm model and big data analysis, the standby time is adjusted according to different environments and requirements, and the adaptability and reliability of the sensor are improved. The method is suitable for the fields of environmental monitoring, industrial control, mine safety and the like, and has a wide application prospect.

Description

Technical Field

[0001] The invention belongs to the field of dust concentration detection, and relates to a wireless low-power consumption dust concentration monitoring method and device. Background Art

[0002] Wireless sensing technology is a sensor technology that transmits and processes data through wireless communication. It is widely used in environmental monitoring, industrial control and other fields. Photoelectric detection technology is a technology that uses the photoelectric effect for detection and measurement, which can realize sensitive detection and conversion of optical signals. Environmental monitoring technology is a technology that monitors various parameters in the environment (such as dust concentration, temperature, humidity, etc.) to understand environmental quality and changes. It is widely used in environmental protection, mining, chemical industry and other fields.

[0003] Existing long-cycle wireless dust concentration sensors usually use user-defined working and sleeping time modes to achieve low power consumption. These sensors will periodically collect dust concentration values ​​when in working state, and stop working in sleeping state to save power. At the same time, some sensors are also equipped with photodiode wake-up circuits, which can automatically wake up the sensor to work when someone is watching.

[0004] Although the existing wireless dust concentration sensors have achieved low power consumption and ease of use to a certain extent, there are still some problems. First, the existing sensors often rely on the user's custom settings when setting the sleep time. If the sleep time is set unreasonably, the sensor may not be able to respond to changes in dust concentration in real time, thereby affecting the accuracy and real-time performance of monitoring. Secondly, there is a gap between working and sleeping in the existing sensors, and they do not have the function of detecting whether there are people observing. Therefore, when there are users on site who need to observe the sensor, they may not be able to respond effectively, affecting the user experience. In addition, the existing sensors also lack intelligence and adaptability in adjusting the standby time, and may not be able to ensure the lowest power consumption and meet the on-site concentration monitoring needs within the most optimized time. Therefore, there is still room for improvement in the existing technology in this field. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a wireless low-power consumption dust concentration monitoring method and device.

[0006] 1. It solves the problem that the existing long-period wireless dust concentration sensor relies on user-defined settings when setting the sleep time. If the sleep time is set unreasonably, the sensor may not be able to respond to changes in dust concentration in real time, affecting the accuracy and real-time performance of monitoring.

[0007] 2. The existing wireless dust concentration sensor has a gap between working and sleeping, and does not have the function of detecting whether there is someone observing. Therefore, when a user on site needs to observe the sensor status, it may not be able to respond effectively, affecting the user experience.

[0008] 3. The problem that the existing wireless dust concentration sensors lack intelligence and adaptability in adjusting the standby time may not be able to ensure the lowest power consumption and meet the on-site concentration monitoring needs within the most optimized time is solved.

[0009] 4. The existing wireless dust concentration sensor has been solved in order to achieve the purpose of low power consumption, which has caused defects in the original core functions of the sensor, such as the problem that the sensor cannot truly respond to the changes in the underground dust concentration in real time.

[0010] In order to achieve the above object, the present invention provides the following technical solutions:

[0011] A wireless low-power dust concentration monitoring method, comprising:

[0012] Collect dust concentration values;

[0013] According to the collected dust concentration value, the location of the sensor area and the historical dust concentration value big data, the algorithm model is used to calculate and obtain the sleep and working time settings, specifically:

[0014] Assume that the time function corresponding to the dust concentration value is f(t). From t0 to t1, the integral of the dust concentration value over time is:

[0015]

[0016] Among them, k is a given coefficient, This is the average dust concentration in this time period, C is the current dust concentration value, according to the Simpson integral formula:

[0017]

[0018] In practical applications, t0 = 0, k is a preset value, and the initial value of t1 is set by the user. According to the Simpson integral formula, The values ​​of [0, t1] are calculated using formula (1) and formula (2), respectively, and are denoted as l t ,r t ,f t ,if

[0019] |l t +r t -f t | <eps (3)

[0020] eps is the preset boundary value, t1 does not change, otherwise Recalculate until formula (3) is satisfied to obtain a suitable time t1, which is the sleep time value of the dust concentration sensor; the working time value is defined by the user as a certain multiple of the sleep time value;

[0021] According to the calculated sleep and working time settings, the sensor is put into sleep state or awake state;

[0022] In the wake-up state, the dust concentration value is continuously collected and monitored;

[0023] Using wireless communication technology, the collected dust concentration values ​​are transmitted to the monitoring center in real time.

[0024] Furthermore, the algorithm model automatically adjusts the standby time according to the dust concentration, the monitoring location, how long the average concentration is representative, the concentration fluctuation, etc.

[0025] Furthermore, it also includes:

[0026] Add a photodiode wake-up circuit to the sensor;

[0027] When a user uses a headlamp on site, the sensor automatically wakes up and continues to work.

[0028] A wireless low-power dust concentration monitoring device, comprising:

[0029] Sensor module, used to collect dust concentration values;

[0030] The processing module is used to calculate and obtain relatively scientific sleep and working time settings using an algorithm model based on the collected dust concentration value, the location of the sensor area, and the historical dust concentration value big data, and put the sensor into a sleep state or a wake-up state based on the calculated sleep and working time settings;

[0031] Wireless communication module, used to transmit the collected dust concentration value to the monitoring center in real time;

[0032] Photodiode wake-up circuit, used to add a photodiode wake-up circuit to the sensor. When a user uses a headlight to illuminate the scene, the sensor automatically wakes up and continues to work;

[0033] The sensor module is responsible for collecting dust concentration data and transmitting the data to the data acquisition unit;

[0034] The data acquisition unit pre-processes the collected raw data and then transmits the processed data to the data processing unit;

[0035] The data processing unit transmits the preprocessed data to the algorithm model unit, and the algorithm model unit calculates and obtains the sleep and work time settings based on the data and historical data;

[0036] The algorithm model unit transmits the calculated sleep and working time settings to the control unit, and the control unit controls the sensor to enter a sleep state or a wake-up state according to the settings;

[0037] The control unit controls the working state of the sensor module;

[0038] The sensor module is connected to a photodiode wake-up circuit. When the photodiode detects light, the wake-up circuit wakes up the sensor module.

[0039] The sensor module is connected to the wireless communication module to transmit the collected dust concentration data to the monitoring center in real time;

[0040] The wireless communication module transmits the data to the monitoring center, which stores, analyzes and processes the data.

[0041] Further, the processing module includes:

[0042] A data collection unit, used to collect dust concentration values;

[0043] A data processing unit, used for preprocessing the collected dust concentration values;

[0044] An algorithm model unit is used to calculate and obtain the sleep and working time settings using an algorithm model according to the pre-processed dust concentration value, the location of the sensor area, and the historical dust concentration value big data;

[0045] A control unit, used to control the sensor to enter a sleep state or a wake-up state according to the sleep and working time settings calculated by the algorithm model;

[0046] The data acquisition unit pre-processes the collected raw data and then transmits the processed data to the data processing unit;

[0047] The data processing unit transmits the preprocessed data to the algorithm model unit, and the algorithm model unit calculates and obtains the sleep and work time settings based on the data and historical data;

[0048] The algorithm model unit transmits the calculated sleep and working time settings to the control unit, and the control unit controls the sensor to enter a sleep state or a wake-up state according to the settings;

[0049] The control unit controls the working state of the sensor module;

[0050] The control unit transmits the collected dust concentration data to the wireless communication module, and the wireless communication module sends the data to the monitoring center;

[0051] The control unit controls whether the sensor enters the wake-up state according to the instruction of the display wake-up algorithm unit;

[0052] The display wake-up algorithm unit determines whether the sensor needs to be woken up according to the signal of the photodiode wake-up circuit.

[0053] The beneficial effects of the present invention are:

[0054] (1) Intelligent adjustment of standby time: The present invention calculates and obtains relatively scientific sleep and working time settings by using the dust concentration value collected when the sensor is in working state, the location of the sensor area, and the algorithm model formed by the dust concentration value big data in the underground working environment of the coal mine based on the historical records of the product company. This intelligent adjustment of standby time can avoid the inconvenience and risks brought by user-defined sleep time, ensure that the sensor can respond to changes in dust concentration in real time, and improve the accuracy and real-time performance of monitoring.

[0055] (2) Automatic wake-up function: The present invention adds a photodiode wake-up circuit to the sensor. When a user uses a headlight to illuminate the sensor, the sensor can automatically wake up and continue to work, which is convenient for the user to debug and observe. This automatic wake-up function not only improves the user experience, but also enables timely response when someone needs to observe the sensor, thereby improving the response speed of the system.

[0056] (3) Significant energy-saving effect: Although the present invention improves the user experience and response speed of the sensor by intelligently adjusting the standby time and adding an automatic wake-up function, it does not sacrifice the energy-saving effect. On the contrary, because the algorithm model of the present invention can optimize the settings of sleep and working time, the sensor can extend the use time as much as possible while ensuring accurate and real-time monitoring, and achieve long-term low-power operation.

[0057] (4) Stronger adaptability: The algorithm model of the present invention can automatically adjust the standby time according to the dust concentration, monitoring location, how long the average concentration is representative, concentration fluctuations, etc., to ensure that power consumption is minimized while meeting the on-site concentration monitoring requirements. This more adaptable approach allows the present invention to be applicable to more application scenarios and meet the monitoring requirements under different environments and conditions.

[0058] In general, compared with the prior art, the present invention not only improves the monitoring accuracy and real-time performance of the sensor and enhances the user experience, but also achieves better energy-saving effects and adaptability, and has obvious advantages.

[0059] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0061] Figure 1 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0062] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0063] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0064] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0065] Example 1

[0066] This embodiment provides a wireless dust concentration sensor based on an algorithm model and a photodiode and a working method thereof. The specific implementation steps are as follows:

[0067] Step 1: Sensor initialization. Place the wireless dust concentration sensor at a designated location in the underground working environment of a coal mine, power on the sensor for initialization, and start collecting dust concentration values.

[0068] Step 2: Data collection and preprocessing: When the sensor is in working state, it collects dust concentration value once a second and performs preprocessing, including denoising and data smoothing, to obtain a stable dust concentration value.

[0069] Step 3: Algorithm model calculation. Based on the pre-processed dust concentration value, the location of the sensor area, and the dust concentration value big data of the coal mine working environment recorded in the product company's history, the algorithm model is used to calculate and obtain a relatively scientific sleep and work time setting by using the mechanism of self-adjusting standby time.

[0070] Step 4: Sleep and wake up. According to the sleep and working time settings calculated by the algorithm model, the sensor enters the sleep state or wake up state. In the sleep state, the sensor wakes up every 30 minutes, collects and pre-processes the dust concentration value, and then enters the sleep state. In the wake-up state, the sensor collects the dust concentration value once a second and monitors it in real time.

[0071] Step 5: Photodiode wake-up. Add a photodiode wake-up circuit to the sensor. When a user uses a headlight to illuminate the sensor, the sensor automatically wakes up and continues to work, which is convenient for user debugging and observation.

[0072] Step 6: Data transmission: Using wireless communication technology, the dust concentration value collected by the sensor is transmitted to the monitoring center in real time, which facilitates real-time monitoring and processing of data.

[0073] Step 7: Low power operation: In the sensor hardware and software design, low power design is adopted to extend the use time of the sensor.

[0074] Through this wireless dust concentration sensor based on an algorithm model and a photodiode and its working method, efficient, accurate and real-time monitoring of the sensor can be achieved, while maximizing the sensor usage time and improving the user experience.

[0075] Example 2

[0076] Sensor initialization: Place the wireless dust concentration sensor at a designated location in the underground working environment of a coal mine, power on the sensor for initialization, and start collecting dust concentration values.

[0077] Data collection and preprocessing: When the sensor is in working state, it collects dust concentration value once a second and performs preprocessing, including denoising and data smoothing, to obtain a stable dust concentration value.

[0078] Algorithm model calculation: Based on the pre-processed dust concentration value, the location of the sensor area, and the big data of dust concentration values ​​in the underground working environment of coal mines recorded in the product company's historical records, and using the mechanism of autonomously adjusting the standby time, the algorithm model is used to calculate and obtain relatively scientific sleep and working time settings.

[0079] Sleep and wake-up: According to the sleep and working time settings calculated by the algorithm model, the sensor enters the sleep state or wake-up state. In the sleep state, the sensor wakes up every 30 minutes, collects and pre-processes the dust concentration value, and then enters the sleep state. In the wake-up state, the sensor collects the dust concentration value once a second and monitors it in real time.

[0080] Photodiode wake-up: Add a photodiode wake-up circuit to the sensor. When a user uses a headlight to illuminate the sensor, the sensor automatically wakes up and continues to work, making it easier for users to debug and observe.

[0081] Data transmission: Utilize wireless communication technology to transmit the dust concentration values ​​collected by the sensor to the monitoring center in real time, facilitating real-time monitoring and processing of data.

[0082] Low-power operation: Low-power design is adopted in sensor hardware and software design to extend the use time of the sensor.

[0083] Example 3

[0084] Sensor initialization: Place the wireless dust concentration sensor at a designated location in the underground working environment of a coal mine, power on the sensor for initialization, and start collecting dust concentration values.

[0085] Data collection and preprocessing: When the sensor is in working state, it collects dust concentration value once a second and performs preprocessing, including denoising and data smoothing, to obtain a stable dust concentration value.

[0086] User behavior monitoring: The sensor uses the built-in positioning module and user behavior analysis algorithm to monitor the activities of nearby people and determine whether there are users who need to observe the sensor.

[0087] Automatic wake-up: When the sensor detects human activity nearby, it automatically wakes up and continues to work, making it easier for users to observe and debug.

[0088] Data transmission: Utilize wireless communication technology to transmit the dust concentration values ​​collected by the sensor to the monitoring center in real time, facilitating real-time monitoring and processing of data.

[0089] Low-power operation: Low-power design is adopted in sensor hardware and software design to extend the use time of the sensor.

[0090] Example 4

[0091] Sensor initialization: Place the wireless dust concentration sensor at a designated location in the underground working environment of a coal mine, power on the sensor for initialization, and start collecting dust concentration values ​​and environmental parameters (such as temperature, humidity, etc.).

[0092] Data collection and preprocessing: When the sensor is in working state, it collects dust concentration values ​​and environmental parameters once a second and performs preprocessing, including denoising and data smoothing, to obtain stable dust concentration values ​​and environmental parameters.

[0093] Adaptive adjustment: Based on the collected dust concentration values, environmental parameters and historical data, the adaptive adjustment algorithm is used to dynamically adjust the sensor's sleep and working time to adapt to different environmental conditions and monitoring needs.

[0094] Data transmission: Utilize wireless communication technology to transmit the dust concentration values ​​collected by the sensor to the monitoring center in real time, facilitating real-time monitoring and processing of data.

[0095] Low-power operation: Low-power design is adopted in sensor hardware and software design to extend the use time of the sensor.

[0096] The above embodiments are only for illustrating the technical solutions of the present invention. Those skilled in the art can modify or improve them according to specific application scenarios and technical requirements. For example:

[0097] Different sensor modules are used, such as laser scattering sensors, beta ray sensors, etc.

[0098] Use different wireless communication technologies, such as Bluetooth, ZigBee, LoRa, etc.

[0099] Use different algorithm models and data processing methods.

[0100] Add other functional modules, such as environmental parameter sensors, vibration sensors, etc.

[0101] The wireless low-power dust concentration monitoring method and device of the present invention can realize real-time and accurate monitoring of dust concentration, and has the advantages of low power consumption and ease of use, and is suitable for environmental monitoring, industrial control, mine safety and other fields.

[0102] This product uses the dust concentration value collected when the sensor is working, the location of the sensor, and the algorithm model formed by the big data of dust concentration values ​​in the underground working environment of coal mines based on the historical records of the product company to calculate and obtain relatively scientific sleep and working time settings. It realizes the reasonable timed wake-up of the sensor and ensures the long-term low-power operation of the sensor.

[0103] A photodiode wake-up circuit is added to the sensor. When a user uses a headlamp to illuminate the sensor, the sensor automatically wakes up and continues to work, making it easier for users to debug and observe.

[0104] Due to the advanced nature of the technical solution, it can be widely used in the fields of environmental monitoring, industrial control and mine safety. First, in the field of environmental monitoring, the wireless dust concentration sensor of the present invention can realize accurate monitoring of dust concentration, and automatically adjust the working and sleeping time according to environmental changes, which not only ensures the accuracy and real-time nature of the data, but also maximizes the battery life, and meets the needs of environmental monitoring for long-term stable operation. At the same time, the photodiode wake-up circuit added to the sensor can automatically wake up the sensor when someone is observing, which is convenient for users to debug and observe, and improves the user experience. Secondly, in the field of industrial control, the wireless dust concentration sensor of the present invention can monitor the dust concentration in the industrial production environment in real time, and automatically adjust the working and sleeping time according to the results of big data analysis, which not only ensures the health and safety of the production environment, but also realizes the efficient use of energy. In addition, the photodiode wake-up circuit added to the sensor can automatically wake up the sensor when someone approaches, which is convenient for operators to perform equipment maintenance and inspection, and improves the efficiency and safety of industrial control. Finally, in the field of mine safety, the wireless dust concentration sensor of the present invention can monitor the dust concentration in the mine in real time, and automatically adjust the working and sleeping time according to the big data analysis results, which not only ensures the safety of miners, but also realizes the efficient use of energy. At the same time, the photodiode wake-up circuit added to the sensor can automatically wake up the sensor when someone approaches, which is convenient for miners to perform equipment maintenance and inspection, and improves the level of mine safety protection. In general, the wireless dust concentration sensor of the present invention has broad application prospects in the fields of environmental monitoring, industrial control and mine safety, meets the market demand for efficient, accurate and intelligent environmental monitoring equipment, and has important practical value and broad market prospects.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A wireless low-power dust concentration monitoring method, characterized in that: include: Collect dust concentration values; According to the collected dust concentration value, the location of the sensor area and the historical dust concentration value big data, the algorithm model is used to calculate and obtain the sleep and working time settings, specifically: Assume that the time function corresponding to the dust concentration value is f(t). From t0 to t1, the integral of the dust concentration value over time is: Among them, k is a given coefficient, This is the average dust concentration in this time period, C is the current dust concentration value, according to the Simpson integral formula: In practical applications, t0 = 0, k is a preset value, and the initial value of t1 is set by the user. According to the Simpson integral formula, The values ​​of are calculated using formula (1) and formula (2), respectively, and are denoted as l t ,r t ,f t ,if |l t +r t -f t |<eps (3) eps is the preset boundary value, t1 does not change, otherwise Recalculate until formula (3) is satisfied to obtain a suitable time t1, which is the sleep time value of the dust concentration sensor; the working time value is defined by the user as a certain multiple of the sleep time value; According to the calculated sleep and working time settings, the sensor is put into sleep state or awake state; In the wake-up state, the dust concentration value is continuously collected and monitored; Using wireless communication technology, the collected dust concentration values ​​are transmitted to the monitoring center in real time.

2. A wireless low-power dust concentration monitoring method according to claim 1, characterized in that: The algorithm model automatically adjusts the standby time according to the dust concentration, monitoring location, and how long the average concentration is representative, and the concentration fluctuation.

3. A wireless low-power dust concentration monitoring method according to claim 1, characterized in that: Also includes: Add a photodiode wake-up circuit to the sensor; When a user uses a headlamp on site, the sensor automatically wakes up and continues to work.

4. A wireless low-power dust concentration monitoring device, characterized in that: include: Sensor module, used to collect dust concentration values; The processing module is used to calculate and obtain relatively scientific sleep and working time settings using an algorithm model based on the collected dust concentration value, the location of the sensor area, and the historical dust concentration value big data, and put the sensor into a sleep state or a wake-up state based on the calculated sleep and working time settings; Wireless communication module, used to transmit the collected dust concentration value to the monitoring center in real time; Photodiode wake-up circuit, used to add a photodiode wake-up circuit to the sensor. When a user uses a headlight to illuminate the scene, the sensor automatically wakes up and continues to work; The sensor module is responsible for collecting dust concentration data and transmitting the data to the data acquisition unit; The data acquisition unit pre-processes the collected raw data and then transmits the processed data to the data processing unit; The data processing unit transmits the preprocessed data to the algorithm model unit, and the algorithm model unit calculates and obtains the sleep and work time settings based on the data and historical data; The algorithm model unit transmits the calculated sleep and working time settings to the control unit, and the control unit controls the sensor to enter a sleep state or a wake-up state according to the settings; The control unit controls the working state of the sensor module; The sensor module is connected to a photodiode wake-up circuit. When the photodiode detects light, the wake-up circuit wakes up the sensor module. The sensor module is connected to the wireless communication module to transmit the collected dust concentration data to the monitoring center in real time; The wireless communication module transmits the data to the monitoring center, which stores, analyzes and processes the data.

5. A wireless low-power dust concentration monitoring device according to claim 4, characterized in that: The processing module comprises: A data collection unit, used to collect dust concentration values; A data processing unit, used for preprocessing the collected dust concentration values; An algorithm model unit is used to calculate and obtain the sleep and working time settings using an algorithm model according to the pre-processed dust concentration value, the location of the sensor area, and the historical dust concentration value big data; A control unit, used to control the sensor to enter a sleep state or a wake-up state according to the sleep and working time settings calculated by the algorithm model; The data acquisition unit pre-processes the collected raw data and then transmits the processed data to the data processing unit; The data processing unit transmits the preprocessed data to the algorithm model unit, and the algorithm model unit calculates and obtains the sleep and work time settings based on the data and historical data; The algorithm model unit transmits the calculated sleep and working time settings to the control unit, and the control unit controls the sensor to enter a sleep state or a wake-up state according to the settings; The control unit controls the working state of the sensor module; The control unit transmits the collected dust concentration data to the wireless communication module, and the wireless communication module sends the data to the monitoring center; The control unit controls whether the sensor enters the wake-up state according to the instruction of the display wake-up algorithm unit; The display wake-up algorithm unit determines whether the sensor needs to be woken up according to the signal of the photodiode wake-up circuit.

Images