MEMS sensitive device wireless sensing test system and method
By using MEMS-sensitive devices to continuously sense environmental information during sleep in the wireless sensing test system of MEMS-sensitive devices, and awaken the wireless sensing nodes through the wake-up pin, the problems of regular wake-up, low perceived duty cycle, more meaningless wake-up, and high power consumption in traditional system wake-up strategies are solved, and environmental monitoring of low power consumption and effective wake-up is achieved.
Patent Information
- Application Number
- CN202510360115.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2025-06-27
AI Technical Summary
Traditional system wake-up strategies have problems such as regular wake-up, low perceived duty cycle, more meaningless wake-ups, and high power consumption.
A wireless sensing testing system for MEMS sensitive devices is designed. By setting the motherboard and the secondary board on the circuit board, and setting the wireless sensing node and the wake-up pin on the motherboard, the MEMS sensitive device continuously senses the environmental information during the sleep of the wireless sensing node. When a target signal is detected, the wireless sensing node is awakened through the wake-up pin and an alarm signal is sent to the secondary board.
It realizes that the motherboard is awakened only when the external environment signal appears. The near-zero power consumption of MEMS sensitive devices continuously sense environmental information, saving wake-up energy, and solving the problems of regular wake-up, low perceived duty cycle, more meaningless wake-up, and high power consumption of traditional systems.
Smart Images
Figure CN120224129A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of system wake-up, and particularly relates to a wireless sensing test system and method for MEMS sensor devices. Background Art
[0002] In related technologies, traditional wake-up strategies mainly rely on the periodic wake-up mechanism of the dormant system to collect environmental signals. Although this mechanism can reduce the energy consumption caused by the continuous operation of the system to a certain extent, its efficiency and effect are not satisfactory. Specifically, due to the fixed periodic wake-up mode adopted by the traditional wake-up strategy, the sensing duty cycle is relatively low, which means that the system is in an inactive state for most of the time and cannot respond to environmental changes in real time. Therefore, in practical applications, there are often a large number of meaningless wake-up situations, that is, no effective environmental information changes are detected after the system is awakened, resulting in high power consumption and an unnecessary computational burden. Summary of the Invention
[0003] This application provides a wireless sensing test system and method for MEMS (Micro-Electro-Mechanical Systems) sensor devices to solve problems such as the periodic wake-up of the related technology system, low sensing duty cycle, many meaningless wake-ups, and high power consumption.
[0004] In a first aspect embodiment of this application, a wireless sensing test system for MEMS sensor devices is provided, including: a circuit board; a main board and a sub-board disposed on the circuit board; a wireless sensing node and a wake-up pin of the wireless sensing node disposed on the main board; a MEMS sensor device disposed on the circuit board. During the dormancy period of the wireless sensing node, the MEMS sensor device continuously senses external environmental information. When a target signal appears in the external environmental information, the wireless sensing node is awakened through the wake-up pin, and the wireless sensing node sends an alarm signal to the sub-board to achieve an alarm.
[0005] Optionally, one end of the MEMS sensor device is connected to a high-level signal, and the other end of the MEMS sensor device is connected to the wake-up pin. Among them, when a target signal appears in the external environmental information, the MEMS sensor device is connected to the circuit where the main board is located, provides a rising-edge level signal for the wake-up pin, and wakes up the wireless sensing node by using the rising-edge level signal.
[0006] Optionally, the wireless sensing test system for MEMS sensor devices further includes: a wireless sensing node disposed on the sub-board, where the wireless sensing node on the main board communicates wirelessly with the wireless sensing node on the sub-board.
[0007] Optionally, the wireless sensing test system for MEMS sensor devices further includes: an alarm pin of the wireless sensing node disposed on the sub-board.
[0008] Optionally, the MEMS sensor device wireless sensing test system further includes: an alarm component disposed on the secondary board, wherein the alarm component is connected to the alarm pin.
[0009] Optionally, the alarm component includes at least one of an optical alarm component and an acoustic alarm component.
[0010] Optionally, the MEMS sensor device wireless sensing test system further includes: a voltage regulator chip and a power supply module disposed on the main board.
[0011] An embodiment of the second aspect of the present application provides a method for testing the wireless sensing of a MEMS sensor device. The method is based on the MEMS sensor device wireless sensing test system of the first aspect for testing. The method includes the following steps: sending a target signal to the MEMS sensor device; when the MEMS sensor device senses that the target signal appears in the external environment information, waking up the wireless sensing node through the wake-up pin; sending an alarm signal to the secondary board through the wireless sensing node to achieve an alarm.
[0012] Therefore, the present application has the following beneficial effects:
[0013] The MEMS sensor device wireless sensing test system of the embodiment of the present application, by setting a main board and a secondary board on the circuit board, setting a wireless sensing node and a wake-up pin of the wireless sensing node on the main board, and setting a MEMS sensor device on the circuit board, continuously senses the external environment information by the MEMS sensor device during the sleep period of the wireless sensing node. When the target signal appears in the external environment information, the wireless sensing node is woken up through the wake-up pin, and the wireless sensing node sends an alarm signal to the secondary board to achieve an alarm, realizing that the main board is only woken up when the external environment signal appears, and the MEMS sensor device continuously senses the environment information with near-zero power consumption, and the power consumption is only the leakage current loss, saving the wake-up energy. Therefore, the problems of the related technology system being woken up regularly, low sensing duty cycle, many meaningless wake-ups, and high power consumption are solved.
[0014] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. Description of the Drawings
[0015] The above and / or additional aspects and advantages of the present application will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:
[0016] Figure 1 is a schematic structural diagram of a MEMS sensor device wireless sensing test system provided according to an embodiment of the present application;
[0017] Figure 2Schematic flowchart of a wireless sensing test method for a MEMS sensor device according to an embodiment of the present application;
[0018] Figure 3 Circuit diagram of a low-power MEMS sensor device wireless sensing test system based on ESP32 according to an embodiment of the present application;
[0019] Figure 4 Flowchart of the operation of a low-power MEMS sensor device wireless sensing test system based on ESP32 according to an embodiment of the present application;
[0020] Figure 5 Test schematic diagram of a low-power MEMS sensor device wireless sensing test system based on ESP32 according to an embodiment of the present application. Detailed implementation manners
[0021] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present application, but should not be construed as limiting the present application.
[0022] The wireless sensing test system and method for a MEMS sensor device according to an embodiment of the present application will be described below with reference to the accompanying drawings. In view of the problems in the related technology system such as periodic wake-up, low sensing duty cycle, many meaningless wake-ups, and high power consumption, the present application provides a wireless sensing test system for a MEMS sensor device. In this system, it includes: a circuit board; a main board and a sub-board disposed on the circuit board; a wireless sensing node and a wake-up pin of the wireless sensing node disposed on the main board; a MEMS sensor device disposed on the circuit board. When the wireless sensing node is in a sleep state, the MEMS sensor device continuously senses the external environment information. If a target signal appears in the external environment information, the wireless sensing node is awakened through the wake-up pin, and the wireless sensing node sends an alarm signal to the sub-board to achieve an alarm. Thus, the problems in the related technology system such as periodic wake-up, low sensing duty cycle, many meaningless wake-ups, and high power consumption are solved.
[0023] Specifically, Figure 1 Schematic structural diagram of a wireless sensing test system for a MEMS sensor device according to an embodiment of the present application.
[0024] As Figure 1 shown, the wireless sensing test system for a MEMS sensor device includes: a circuit board 101, a main board 102, a sub-board 103, a wireless sensing node 104, a wake-up pin 105, and a MEMS sensor device 106.
[0025] Among them, the main board 102 and the secondary board 103 are arranged on the circuit board 101; the wireless sensing node 104 arranged on the main board 102 and the wake-up pin 105 of the wireless sensing node 104; the MEMS sensor device 106 arranged on the circuit board 101, and the MEMS sensor device 106 continuously senses the external environmental information during the sleep period of the wireless sensing node 104. When a target signal appears in the external environmental information, the wireless sensing node 104 is woken up through the wake-up pin 105, and the wireless sensing node 104 sends an alarm signal to the secondary board 103 to achieve an alarm.
[0026] Among them, the target signal may include, but is not limited to, any preset physical quantity changes such as sound, vibration, temperature change, humidity change, pressure change, etc. that need to be monitored and responded to, and no specific limitation is made here.
[0027] It can be understood that the embodiment of the present application is composed of the main board 102 and the secondary board 103, both of which are arranged on the circuit board 101; among them, the main board 102 is equipped with a wireless sensing node 104 that can be triggered and woken up by the MEMS sensor device 106 through the wake-up pin 105. The MEMS sensor device 106 continuously senses the external environmental information during the sleep period of the wireless sensing node 104. When the MEMS sensor device 106 detects a preset target signal during the sleep period of the wireless sensing node, the wireless sensing node 104 is woken up through the wake-up pin 105, and it sends an alarm signal to the secondary board 103 to achieve the alarm function.
[0028] In the embodiment of the present application, one end of the MEMS sensor device 106 is connected to a high-level signal, and the other end of the MEMS sensor device 106 is connected to the wake-up pin 105. Among them, when a target signal appears in the external environmental information, the MEMS sensor device 106 is connected to the circuit where the main board 102 is located, provides a rising-edge level signal for the wake-up pin 105, and uses the rising-edge level signal to wake up the wireless sensing node 104.
[0029] Among them, the rising-edge level signal refers to the moment when the signal level rapidly changes from a low state (logic 0 or grounded) to a high state (logic 1 or power supply voltage) in digital circuits or signal processing, which is used to trigger specific operations or events, and is used to trigger the wake-up function in the embodiment of the present application.
[0030] It can be understood that in the embodiment of the present application, one end of the MEMS sensor device 106 is connected to a high-level signal, and the other end is connected to the wake-up pin 105 of the wireless sensing node 104. When a target signal appears in the external environment, the MEMS sensor device 106 detects this change and provides a rising-edge level signal for the wake-up pin 105 by accessing the circuit where the main board 102 is located, and triggers the wireless sensing node 104 through the rising-edge signal to wake it up from the low-power sleep state.
[0031] In an embodiment of the present application, the MEMS sensor device 106 wireless sensing test system further includes: a wireless sensing node disposed on the daughter board 103, wherein the wireless sensing node 104 on the main board 102 communicates wirelessly with the wireless sensing node on the daughter board 103.
[0032] Among them, the method of wireless communication can be Bluetooth wireless communication technology. If the requirements of the application scenario change, other wireless communication methods can also be considered, such as Zigbee, etc., which are not specifically limited herein.
[0033] It can be understood that in addition to the wireless sensing node 104 being disposed on the main board 102 in the embodiment of the present application, the daughter board 103 is also equipped with a wireless sensing node. The wireless sensing node 104 on the main board 102 is mainly used to receive the rising edge level signal from the MEMS sensor device 106 through its wake-up pin 105. When detecting the target signal in the external environment, it wakes itself up and sends an alarm signal, while the wireless sensing node on the daughter board 103 is responsible for receiving the alarm signal sent by the wireless sensing node 104 on the main board 102. Data transmission is carried out between the two wireless sensing nodes through wireless communication technologies such as Bluetooth, realizing wireless transmission of information.
[0034] In an embodiment of the present application, the MEMS sensor device 106 wireless sensing test system further includes: an alarm pin of the wireless sensing node disposed on the daughter board 103.
[0035] Among them, the alarm pin is used to trigger the corresponding alarm mechanism after receiving the alarm signal from the main board.
[0036] It can be understood that in the embodiment of the present application, the wireless sensing node on the daughter board 103 is also provided with an alarm pin. Through the alarm pin, when the wireless sensing node on the daughter board 103 receives the alarm signal sent by the main board 102, the corresponding alarm mechanism can be triggered through the alarm pin.
[0037] In an embodiment of the present application, the MEMS sensor device 106 wireless sensing test system further includes: an alarm component disposed on the daughter board 103, wherein the alarm component is connected to the alarm pin.
[0038] It can be understood that the daughter board 103 in the embodiment of the present application is also equipped with an alarm component, which is connected to the alarm pin of the wireless sensing node on the daughter board 103. When a specific target signal appears in the external environment, the wireless sensing node 104 on the main board 102 will send an alarm signal to the wireless sensing node on the daughter board 103. Subsequently, the wireless sensing node on the daughter board 103 activates the alarm component connected thereto through its alarm pin, such as lighting a warning light or other forms of alarm prompts.
[0039] In an embodiment of the present application, the alarm component includes at least one of an optical alarm component and an acoustic alarm component.
[0040] Among them, the optical alarm component, such as a warning light, can flash or be constantly on when receiving an alarm signal to achieve an alarm effect; the acoustic alarm component, such as a buzzer, can emit a beep when receiving an alarm signal to achieve an alarm effect.
[0041] It can be understood that the alarm component in the embodiment of the present application includes at least one of an optical alarm component and an acoustic alarm component to provide an alarm prompt when receiving an alarm signal.
[0042] In an embodiment of the present application, the MEMS sensor device 106 wireless sensing test system is characterized by further comprising: a voltage stabilizing chip and a power module disposed on the main board 102.
[0043] Among them, the voltage stabilizing chip is used to ensure that each part of the system obtains a stable and appropriate voltage supply, avoiding the impact of voltage fluctuations on the system performance, thereby ensuring the stable operation of the system; the power module is used to provide the required power support for the entire system.
[0044] It can be understood that the embodiment of the present application provides a voltage stabilizing chip and a power module disposed on the main board 102 to provide the required power support for the entire system, and ensure that each part of the system obtains a stable and appropriate voltage supply, improving the reliability and stability of the system. At the same time, the energy utilization efficiency is optimized, enabling the entire system to achieve low-power operation while maintaining high response capabilities.
[0045] According to the MEMS sensor device wireless sensing test system proposed in the embodiment of the present application, by setting a main board and a sub-board on a circuit board, setting a wireless sensing node and a wake-up pin of the wireless sensing node on the main board, and setting a MEMS sensor device on the circuit board, the MEMS sensor device continuously senses external environment information during the sleep period of the wireless sensing node. When a target signal appears in the external environment information, the wireless sensing node is awakened through the wake-up pin, and the wireless sensing node sends an alarm signal to the sub-board to achieve an alarm, realizing that the main board is awakened only when an external environment signal appears, and the MEMS sensor device continuously senses the environment information with near-zero power consumption, and the power consumption is only the leakage current loss, saving the wake-up energy.
[0046] Secondly, a MEMS sensor device wireless sensing test method proposed according to an embodiment of the present application is described with reference to the accompanying drawings.
[0047] Figure 2 It is a schematic flow chart of the MEMS sensor device wireless sensing test method in the embodiment of the present application. This method is tested based on the above-mentioned MEMS sensor device wireless sensing test system, as Figure 2As shown, the wireless sensing test method for the MEMS sensor device includes the following steps:
[0048] In step S201, a target signal is sent to the MEMS sensor device.
[0049] Among them, the target signal can include, but is not limited to, any pre-set physical quantity changes such as sound, vibration, temperature change, humidity change, pressure change, etc. that need to be monitored and responded to. Such a target signal can be sent manually as the basis for testing the wireless sensing of the MEMS sensor device.
[0050] In step S202, when the MEMS sensor device senses the appearance of the target signal in the external environment information, the wireless sensing node is awakened through the wake-up pin.
[0051] It can be understood that when the MEMS sensor device of the embodiment of the present application senses the appearance of the target signal in the external environment information, it will automatically connect itself to the circuit and provide a rising-edge level signal to the wireless sensing node on the main board through the wake-up pin, triggering the wireless sensing node to wake up from the low-power sleep state.
[0052] In step S203, an alarm signal is sent to the daughter board through the wireless sensing node to achieve an alarm.
[0053] It can be understood that after the wireless sensing node on the main board of the embodiment of the present application is awakened by the MEMS sensor device, it uses wireless communication technology to send an alarm signal to the daughter board. After the daughter board receives the alarm signal, it activates the alarm component connected thereto to achieve an alarm. Through this process, it is verified whether the MEMS sensor device can accurately sense and trigger the subsequent system response mechanism when a similar change occurs in the actual environment, that is, whether it can successfully wake up the wireless sensing node on the main board by providing a rising-edge level signal and further start the alarm process.
[0054] According to the wireless sensing test method for the MEMS sensor device proposed by the embodiment of the present application, by sending a target signal to the MEMS sensor device, when the MEMS sensor device senses the appearance of the target signal in the external environment information, the wireless sensing node is awakened through the wake-up pin, and an alarm signal is sent to the daughter board through the wireless sensing node to achieve an alarm. By judging whether the above process realizes an alarm, it can be tested whether the MEMS sensor device can accurately sense and trigger the subsequent system response mechanism.
[0055] A specific embodiment is provided below to further describe the wireless sensing test system and method for the MEMS sensor device.
[0056] This embodiment provides a low-power wireless sensing test system for MEMS sensor devices based on ESP32. Figure 3It is the circuit diagram of a wireless sensing test system for a low-power MEMS sensor device based on ESP32. The circuit mainly includes a MEMS sensor device, an ESP32 main board, an ESP32 secondary board, a voltage module, a voltage regulator chip, and a warning light.
[0057] As Figure 4 Shown is the working flow chart of a wireless sensing test system for a low-power MEMS sensor device based on ESP32. The specific working process is as follows:
[0058] Step S301, the target signal appears
[0059] Step S302, the MEMS sensor device is connected to the circuit
[0060] Step S303, a rising edge signal appears on the wake-up pin
[0061] Step S304, wake up the ESP32 main board
[0062] Step S305, send a signal through Bluetooth wireless communication
[0063] Step S306, the ESP32 secondary board receives the signal
[0064] Step S307, the alarm light turns on
[0065] Specifically, the wireless sensing test system for the low-power MEMS sensor device mainly includes a wireless sensing node and a secondary board node: the control chip of the wireless sensing node is an ESP32 single-chip microcomputer, which is responsible for scheduling each functional module and sending alarm signals using Bluetooth wireless communication technology; the secondary board node receives the alarm signal from the wireless sensing node and turns on the warning light by pulling up the level of the wake-up pin, realizing the detection of the target signal.
[0066] As Figure 5 Shown is the test schematic diagram of a wireless sensing test system for a low-power MEMS sensor device based on ESP32. The specific test method is as follows: connect one end of the MEMS sensor device to a high level and the other end to the wake-up pin of the ESP32 in the wireless sensing node. During the sleep period (low-power standby mode) of the wireless sensing node, the MEMS sensor device continuously senses the external environment information, and the circuit where it is located is disconnected. When a specific external environment signal appears, the MEMS sensor device is connected to the circuit, the circuit is turned on, providing a rising edge level signal for the wake-up pin, waking up the wireless sensing node and sending the alarm signal to the secondary board. After receiving the alarm signal, the secondary board controls the alarm light to turn on. By judging whether the alarm is realized in the above process, it can be tested whether the MEMS sensor device can accurately sense and trigger the subsequent system response mechanism.
[0067] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0069] Any process or method description shown in the flowchart or described in other ways herein may be understood to represent a module, segment, or portion of code including one or N executable instructions for implementing a customized logic function or process, and the scope of the preferred embodiments of the present application includes additional implementations, where the functions may be performed in a substantially simultaneous manner or in a reverse order according to the involved functions, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present application pertain.
[0070] It should be understood that each part of the present application may be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, the steps or methods may be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware as in another embodiment, any one or a combination of the following techniques well known in the art may be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having appropriate combinational logic gate circuits, programmable gate arrays, field programmable gate arrays, etc.
[0071] Those of ordinary skill in the art in this technical field can understand that all or part of the steps carried by the methods for implementing the above embodiments can be completed by instructing relevant hardware through a program, and the above program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.
[0072] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.
Claims
1. A wireless sensor testing system for MEMS sensitive devices, characterized in that: include: Circuit boards; A main board and a sub-board are arranged on the circuit board; A wireless sensor node and a wake-up pin of the wireless sensor node are arranged on the mainboard; A MEMS sensitive device is arranged on the circuit board, and the MEMS sensitive device continuously senses external environmental information during the sleep period of the wireless sensor node. If a target signal appears in the external environmental information, the wireless sensor node is awakened through the wake-up pin, and the wireless sensor node sends an alarm signal to the sub-board to realize an alarm.
2. The MEMS sensitive device wireless sensor testing system according to claim 1, characterized in that: One end of the MEMS sensitive device is connected to a high-level signal, and the other end of the MEMS sensitive device is connected to the wake-up pin. If a target signal appears in the external environment information, the MEMS sensitive device is connected to the circuit of the main board to provide a rising edge level signal for the wake-up pin, and the wireless sensor node is awakened by the rising edge level signal.
3. The MEMS sensitive device wireless sensor testing system according to claim 1, characterized in that: Also includes: The wireless sensor node is arranged on the secondary board, wherein the wireless sensor node on the main board communicates wirelessly with the wireless sensor node on the secondary board.
4. The MEMS sensitive device wireless sensor testing system according to claim 3, characterized in that: Also includes: An alarm pin of the wireless sensor node is arranged on the sub-board.
5. The MEMS sensitive device wireless sensor testing system according to claim 4, characterized in that: Also includes: An alarm component is arranged on the sub-board, wherein the alarm component is connected to the alarm pin.
6. The MEMS sensitive device wireless sensor testing system according to claim 4, characterized in that: The alarm assembly includes at least one of an optical alarm component and an acoustic alarm component.
7. The MEMS sensitive device wireless sensor testing system according to claim 4, characterized in that: Also includes: A voltage stabilizing chip and a power supply module are arranged on the mainboard.
8. A wireless sensing test method for MEMS sensitive devices, characterized in that: The method is based on the MEMS sensitive device wireless sensing test system according to any one of claims 1 to 7 for testing, wherein the method comprises the following steps: Send target signals to MEMS sensitive devices; When the MEMS sensing device senses the presence of a target signal in the external environment information, the wireless sensor node is awakened through the wake-up pin; The wireless sensor node sends an alarm signal to the sub-board to realize the alarm.