Multifunctional wireless sensor

Abstract

The invention discloses a multifunctional wireless sensor, which belongs to the technical field of sensors and comprises a shell, an annular plate is fixedly connected to the bottom end in the shell, a partial power supply mechanism is assembled above the annular plate in the shell, and an upper cover is assembled at the top end of the shell. The top end of the upper cover is fixedly connected with a soft key made of rubber embedded with a pressure sensor, a base is assembled at the bottom end of the shell, a mounting groove is formed in the base, a plurality of ventilation openings are formed in the middle of the interior of the mounting groove in the circumferential direction at equal intervals, and the ventilation openings communicate with the mounting groove and the outside; a main control chip, a Bluetooth chip, a Flash memory, a partial power supply mechanism, a data acquisition mechanism, a ZigBee chip and an antenna are fixedly connected to the inner side wall of the mounting groove in a staggered manner; according to the invention, the power consumption of the wireless sensor can be saved, and the cruising ability of the wireless sensor is improved.

Description

Technical Field

[0001] This invention belongs to the field of sensor technology, and specifically relates to a multifunctional wireless sensor. Background Technology

[0002] A wireless sensor is a device that integrates data acquisition, processing, and wireless communication functions. It senses environmental physical quantities through built-in or external sensor elements and transmits the data wirelessly to the receiving end.

[0003] Current wireless sensor data acquisition and transmission typically involves setting multiple alarm thresholds. The first-level alarm threshold is a low alarm. When a low alarm occurs, it usually indicates that certain parameters are deteriorating, requiring close monitoring of their development trend in order to formulate a maintenance plan. During this process, the wireless sensor needs to be in continuous operation, which consumes a lot of power and reduces battery life.

[0004] Therefore, a multifunctional wireless sensor is designed to solve the above problems. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a multifunctional wireless sensor that saves power consumption and improves battery life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional wireless sensor, comprising: a housing, an annular plate fixedly connected to the bottom of the housing, a partial power supply mechanism assembled above the annular plate inside the housing, a top cover assembled at the top of the housing, a soft button made of rubber with an embedded pressure sensor fixedly connected to the top of the top cover, a base assembled at the bottom of the housing, an installation groove provided inside the base, a plurality of ventilation openings evenly spaced along the circumference in the middle of the installation groove, the ventilation openings connecting the installation groove to the outside, and a main control chip, a Bluetooth chip, a Flash memory, a partial power supply mechanism, a data acquisition mechanism, a ZigBee chip and an antenna fixedly and offset to the inner side wall of the installation groove; The power supply mechanism, pressure sensor with soft button, Bluetooth chip, Flash memory, data acquisition mechanism and ZigBee chip are electrically connected to the main control chip, and the antenna is electrically connected to the ZigBee chip. The wireless sensor can be powered on by pressing the soft button to enter the Bluetooth chip configuration mode, where the wake-up threshold, timed wake-up value and alarm threshold are set and stored in the Flash memory. Data collection rules of data collection agencies: In ZigBee communication mode: Press the soft button to wake up the device, perform one data acquisition and transmission, and then enter a low-power sleep state. Determine if the signal amplitude exceeds the wake-up threshold. If it does not exceed the threshold, the wireless sensor is in a low-power sleep state. If it exceeds the threshold, interrupt the wake-up process to collect data. Judge the collected data: If the value is higher than the wake-up threshold, data will be sent according to the set period until it is lower than the wake-up threshold. If the value is higher than the wake-up threshold but lower than the alarm threshold, data will be sent. At the same time, the RTC timer interrupt will be enabled to periodically wake up the device and send data until the value is lower than the wake-up threshold or higher than the alarm threshold. If the data level falls below the wake-up threshold, data transmission will stop and the system will enter a low-power sleep state.

[0007] Furthermore, the power supply mechanism includes a battery disposed above the annular plate and a power management board fixed inside the mounting slot. The power management board is electrically connected to the main control chip, and the battery is electrically connected to the power management board.

[0008] Furthermore, the data acquisition mechanism includes a temperature sensor, a microphone, and a triaxial vibration accelerometer that are misaligned and fixed inside the mounting slot. The temperature sensor, microphone, and triaxial vibration accelerometer are electrically connected to the main control chip.

[0009] Furthermore, the soft button also includes a dual-color LED indicator embedded in the rubber, which is electrically connected to the main control chip.

[0010] Furthermore, the top of the housing and the base are respectively fixed with buckles, and the bottom of the upper cover and the housing are respectively provided with slots. The buckles are fixedly engaged in the slots between the upper cover and the housing, and between the housing and the base, by rotation.

[0011] Furthermore, a number of fixing blocks are fixedly connected to the inner walls of the upper cover and the base at equal intervals along the circumference. Sealing plates are fixedly connected to the bottom end of the fixing blocks inside the upper cover and the top end of the fixing blocks inside the base, respectively. The sealing plate inside the upper cover abuts against the inner wall of the shell, and the sealing plate inside the base abuts against the annular plate.

[0012] Furthermore, elastic sealing rings are respectively pressed and disposed inside the housing between the sealing plate and the battery and the annular plate.

[0013] Furthermore, a heat sink is fixedly connected inside the base, with a portion of the heat sink located within the mounting groove, and the temperature sensor is in contact with the heat sink.

[0014] Furthermore, the base has a threaded hole inside.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The working state of the wireless sensor of this invention is as follows: pressing the soft button wakes it up to perform one data acquisition and transmission, and then it enters a low-power sleep state. At the same time, it judges whether the signal amplitude exceeds the wake-up threshold. If it does not exceed the threshold, the wireless sensor is in a low-power sleep state. If it exceeds the threshold, the wake-up is interrupted to perform data acquisition, and the acquired data is judged. If it is higher than the wake-up threshold, data is transmitted according to the set period until it is lower than the wake-up threshold. If it is higher than the wake-up threshold but lower than the alarm threshold, data is transmitted. At the same time, the RTC timer interrupt is enabled to periodically wake up and transmit data until it is lower than the wake-up threshold or higher than the alarm threshold. If it is lower than the wake-up threshold, data transmission stops and it enters a low-power sleep state. Compared with the prior art, this can save the power consumption of the wireless sensor and improve the battery life of the wireless sensor.

[0016] 2. The outer shell of the present invention is composed of a top cover, a shell and a base. The top cover and the shell, as well as the shell and the base, are rotated and snapped together by buckles and slots, which has a detachable function and facilitates later maintenance or repair.

[0017] 3. The present invention is equipped with a sealing plate. After the top cover, shell and base are assembled, the sealing plate abuts against the inner wall of the shell and the annular plate respectively. At the same time, an elastic sealing ring is set between the sealing plate and the battery, which can improve the overall sealing performance, that is, the waterproof performance. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a vertical sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 For the present invention Figure 2 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the structural connection relationship of the present invention; Figure 6 This is a schematic diagram of the method flow of the present invention; In the diagram: 1. Top cover; 2. Housing; 3. Base; 4. Soft button; 5. Circular plate; 6. Vent; 7. Mounting slot; 8. Main control chip; 9. Bluetooth chip; 10. Flash memory; 11. ZigBee chip; 12. Antenna; 101. Battery; 102. Power management board; 201. Temperature sensor; 202. Microphone; 203. Triaxial vibration accelerometer; 301. Buckle; 302. Slot; 401. Fixing block; 402. Sealing plate; 501. Elastic sealing ring; 601. Heat sink; 701. Threaded hole. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0020] This invention provides the following technical solution: a multifunctional wireless sensor, comprising: a housing 2, an annular plate 5 fixedly connected to the bottom of the housing 2, a partial power supply mechanism assembled above the annular plate 5 inside the housing 2, a top cover 1 assembled at the top of the housing 2, a soft button 4 made of rubber with an embedded pressure sensor fixedly connected to the top of the top cover 1, a base 3 assembled at the bottom of the housing 2, an installation groove 7 opened inside the base 3, a plurality of ventilation holes 6 evenly spaced along the circumference inside the installation groove 7, the ventilation holes 6 connecting the installation groove 7 to the outside, and a main control chip 8, a Bluetooth chip 9, a Flash memory 10, a partial power supply mechanism, a data acquisition mechanism, a ZigBee chip 11 and an antenna 12 fixedly connected to the side wall of the installation groove 7 in a staggered manner; The power supply mechanism, the pressure sensor of the soft button 4, the Bluetooth chip 9, the Flash memory 10, the data acquisition mechanism and the ZigBee chip 11 are electrically connected to the main control chip 8, and the antenna 12 is electrically connected to the ZigBee chip 11. The wireless sensor is powered on by pressing the soft control button 4 and enters the Bluetooth chip 9 configuration mode. The wake-up threshold, timed wake-up value and alarm threshold are set and stored in the Flash memory 10. Data collection rules of data collection agencies: In ZigBee communication mode: Press the soft control button 4 to wake up and perform a data acquisition and transmission, then enter a low-power sleep state; Determine if the signal amplitude exceeds the wake-up threshold. If it does not exceed the threshold, the wireless sensor is in a low-power sleep state. If it exceeds the threshold, interrupt the wake-up process to collect data. Judge the collected data: If the value is higher than the wake-up threshold, data will be sent according to the set period until it is lower than the wake-up threshold. If the value is higher than the wake-up threshold but lower than the alarm threshold, data will be sent. At the same time, the RTC timer interrupt will be enabled to periodically wake up the device and send data until the value is lower than the wake-up threshold or higher than the alarm threshold. If the data level falls below the wake-up threshold, data transmission will stop and the system will enter a low-power sleep state.

[0021] Specifically, the power supply mechanism includes a battery 101 disposed above the annular plate 5 and a power management board 102 fixed inside the mounting slot 7. The power management board 102 is electrically connected to the main control chip 8, and the battery 101 is electrically connected to the power management board 102.

[0022] Specifically, the data acquisition mechanism includes a temperature sensor 201, a microphone 202, and a triaxial vibration accelerometer 203, which are misaligned and fixed inside the mounting slot 7. The temperature sensor 201, microphone 202, and triaxial vibration accelerometer 203 are electrically connected to the main control chip 8.

[0023] See appendix Figure 1 , 3 Press the soft control button 4, 5, and 6, wait 3 seconds to power on, and enter the configuration mode of Bluetooth chip 9. In Bluetooth mode, you can set the parameters of wake-up threshold, timed wake-up value, and alarm threshold. After setting, save to Flash memory 10. After setting or 10 seconds, it will automatically enter the communication mode of ZigBee chip 11. In the communication mode of ZigBee chip 11: Determine if the signal amplitude exceeds the wake-up threshold. If it does not exceed the threshold, the wireless sensor is in a low-power sleep state. If it exceeds the threshold, interrupt the wake-up process to collect data. Judge the collected data: If the value is higher than the wake-up threshold, data will be sent according to the set period until it is lower than the wake-up threshold. If the value is higher than the wake-up threshold but lower than the alarm threshold, data will be sent. At the same time, the RTC timer interrupt will be enabled to periodically wake up the device and send data until the value is lower than the wake-up threshold or higher than the alarm threshold. If the data level falls below the wake-up threshold, data transmission will stop and the system will enter a low-power sleep state. It also has point inspection and detection functions, that is, in the communication mode of ZigBee chip 11: Press the soft control button 4 to wake up and perform a data acquisition and transmission, then enter a low-power sleep state; In the communication mode of ZigBee chip 11: Press the soft control button 4 and wait 3 seconds to power off. Example 2

[0024] The difference between this embodiment and Embodiment 1 is that: Specifically, the soft button 4 also includes a dual-color LED indicator embedded in the rubber, which is electrically connected to the main control chip 8.

[0025] See appendix Figure 3In the communication mode of the ZigBee chip 11, the red light flashes during data transmission, and the green light flashes three times before turning off after transmission is complete, making it easy to understand. Example 3

[0026] The difference between this embodiment and embodiment two is that: Specifically, buckles 301 are fixedly connected to the top of the housing 2 and the base 3 respectively, and slots 302 are opened at the bottom of the upper cover 1 and the housing 2 respectively. The buckles 301 are fixedly connected to the upper cover 1 and the housing 2 and the housing 2 and the base 3 by rotation.

[0027] See appendix Figure 3-4 The upper cover 1 and the housing 2, as well as the housing 2 and the base 3, are rotated to make the buckle 301 engage inside the slot 302, thereby fixing the position of the upper cover 1 and the housing 2, as well as the housing 2 and the base 3, which facilitates disassembly and assembly for maintenance or repair. Example 4

[0028] The difference between this embodiment and Embodiment 3 is that: Specifically, a number of fixing blocks 401 are fixedly connected to the inner walls of the upper cover 1 and the base 3 at equal intervals along the circumference. Sealing plates 402 are fixedly connected to the bottom of the fixing blocks 401 inside the upper cover 1 and the top of the fixing blocks 401 inside the base 3, respectively. The sealing plates 402 inside the upper cover 1 abut against the inner wall of the shell 2, and the sealing plates 402 inside the base 3 abut against the annular plate 5.

[0029] See appendix Figure 3-4 When the upper cover 1 is rotated and snapped into the housing 2 and the housing 2 is rotated into the base 3, the inner sealing plate 402 of the upper cover 1 abuts against the inner wall of the housing 2, and the inner sealing plate 402 of the base 3 abuts against the annular plate 5, which can improve the sealing between the upper cover 1 and the housing 2 and the housing 2 and the base 3. Example 5

[0030] The difference between this embodiment and embodiment four is that: Specifically, elastic sealing rings 501 are respectively squeezed and disposed inside the housing 2 between the sealing plate 402, the battery 101, and the annular plate 5.

[0031] See appendix Figure 3-4 The elastic sealing ring 501 can further improve the sealing between the top cover 1 and the housing 2, as well as between the housing 2 and the base 3. Example 6

[0032] The difference between this embodiment and Embodiment 5 is that: Specifically, a heat sink 601 is fixedly connected inside the base 3, and part of the heat sink 601 is located in the mounting groove 7. The temperature sensor 201 is in contact with the heat sink 601.

[0033] See appendix Figure 4The heat sink 601 can accelerate the heat dissipation of the temperature sensor 201 and prevent the temperature sensor 201 from overheating. Example 7

[0034] The difference between this embodiment and Embodiment Six is ​​that: Specifically, the base 3 has a threaded hole 701 inside.

[0035] See appendix Figure 4 The threaded hole 701 can mate with the threaded parts at the installation position, improving installation stability and preventing vibration-induced loosening.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional wireless sensor, characterized in that, include: The housing has an annular plate fixed to its bottom interior. A power supply mechanism is mounted above the annular plate inside the housing. A top cover is mounted on the top of the housing, and a soft button made of rubber with an embedded pressure sensor is fixed to the top of the top cover. A base is mounted on the bottom of the housing, and a mounting groove is provided inside the base. Several ventilation holes are evenly spaced along the circumference inside the mounting groove, connecting the mounting groove to the outside. A main control chip, a Bluetooth chip, a Flash memory, a power supply mechanism, a data acquisition mechanism, a ZigBee chip, and an antenna are fixedly mounted to the side wall of the mounting groove in a staggered manner. The power supply mechanism, pressure sensor with soft button, Bluetooth chip, Flash memory, data acquisition mechanism and ZigBee chip are electrically connected to the main control chip, and the antenna is electrically connected to the ZigBee chip. The wireless sensor can be powered on by pressing the soft button to enter the Bluetooth chip configuration mode, where the wake-up threshold, timed wake-up value and alarm threshold are set and stored in the Flash memory. Data collection rules of data collection agencies: In ZigBee communication mode: Press the soft button to wake up the device, perform one data acquisition and transmission, and then enter a low-power sleep state. Determine if the signal amplitude exceeds the wake-up threshold. If it does not exceed the threshold, the wireless sensor is in a low-power sleep state. If it exceeds the threshold, interrupt the wake-up process to collect data. Judge the collected data: If the value is higher than the wake-up threshold, data will be sent according to the set period until it is lower than the wake-up threshold. If the value is higher than the wake-up threshold but lower than the alarm threshold, data will be sent. At the same time, the RTC timer interrupt will be enabled to periodically wake up the device and send data until the value is lower than the wake-up threshold or higher than the alarm threshold. If the data level falls below the wake-up threshold, data transmission will stop and the system will enter a low-power sleep state.

2. The multifunctional wireless sensor according to claim 1, characterized in that: The power supply mechanism includes a battery mounted above the annular plate and a power management board fixed inside the mounting slot. The power management board is electrically connected to the main control chip, and the battery is electrically connected to the power management board.

3. A multifunctional wireless sensor according to claim 2, characterized in that: The data acquisition mechanism includes a temperature sensor, a microphone, and a triaxial vibration accelerometer that are misaligned and fixed inside the mounting slot. The temperature sensor, microphone, and triaxial vibration accelerometer are electrically connected to the main control chip.

4. A multifunctional wireless sensor according to claim 3, characterized in that: The soft button also includes a dual-color LED indicator embedded in the rubber, which is electrically connected to the main control chip.

5. A multifunctional wireless sensor according to claim 4, characterized in that: The top of the housing and the base are respectively fixed with buckles, and the bottom of the upper cover and the housing are respectively provided with slots. The buckles are fixedly engaged in the slots between the upper cover and the housing, and between the housing and the base, by rotation.

6. A multifunctional wireless sensor according to claim 5, characterized in that: The inner walls of the top cover and the base are fixedly connected with a number of fixing blocks at equal intervals along the circumference. The bottom of the fixing block inside the top cover and the top of the fixing block inside the base are respectively fixedly connected with sealing plates. The sealing plate inside the top cover abuts against the inner wall of the shell, and the sealing plate inside the base abuts against the annular plate.

7. A multifunctional wireless sensor according to claim 6, characterized in that: Elastic sealing rings are respectively squeezed and installed inside the housing between the sealing plate, the battery, and the annular plate.

8. A multifunctional wireless sensor according to claim 7, characterized in that: A heat sink is fixed inside the base, with a portion of the heat sink located in the mounting groove, and the temperature sensor is in contact with the heat sink.

9. A multifunctional wireless sensor according to claim 8, characterized in that: The base has threaded holes inside.

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