Sound-eye intelligent patrol sensor

Abstract

The utility model belongs to the technical field of sensors, and mainly relates to a sound-eye intelligent patrol sensor, which comprises a main control module, and a power supply module, a communication module, a storage module and a sensor module which are respectively connected with the main control module, the main control module obtains data information of an external motor through the sensor module, and the data information comprises vibration information, sound information and environment temperature information; one end of the power supply module is connected with the main control module, the other end of the power supply module is connected with the communication module, the storage module and the sensor module, and the main control module controls power supply states of the communication module, the storage module and the sensor module through the power supply module; the communication module is used for uploading the data information acquired by the main control module to a control terminal; the storage module is used for storing data information; the equipment state is captured in real time and is remotely reported in a low-power-consumption wireless mode, the inspection efficiency can be remarkably improved, the maintenance cost is reduced, and reliable data support is provided for equipment health management and intelligent early warning.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sensor technical field, concretely relates to a sound purpose wisdom patrols sensor. BACKGROUND

[0002] With the in-depth of industrial 4.0 and "smart factory" concept, the online monitoring and predictive maintenance of production equipment are increasingly important. Traditional inspection often relies on artificial periodic inspection, and there are disadvantages such as high cost, slow response and difficult to avoid missed inspection. Especially in mines, steel plants, logistics conveying lines and other harsh environments, key components such as rollers and motors often operate in high temperature, high dust and high vibration scenes for a long time. Once the motor (roller) has abnormal vibration or abnormal noise, it will directly cause the production line to stop, the equipment to be damaged, and even safety accidents.

[0003] At present, there are various vibration sensors or sound sensors on the market and in the academic field for equipment state monitoring, but there are still technical problems of limited single dimension data, only relying on vibration or sound signals, lacking multi-dimensional information fusion, and easy to produce false positives or false negatives. In addition, the modules in the existing sensor are often powered continuously, and cannot automatically save energy according to the state; the equipment battery life is short, and the maintenance frequency is high.

[0004] Therefore, it is urgent to improve the modern sensor to solve the technical defects of the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at: in view of the prior art, provide a kind of sound purpose wisdom patrols sensor for realizing multi-dimensional information fusion processing.

[0006] In order to achieve the above object, the following technical scheme is implemented in the present application:

[0007] A sound purpose wisdom patrols sensor, comprising a main control module and a power supply module, a communication module, a storage module and a sensor module connected with the main control module respectively;

[0008] The main control module obtains the data information of the external motor through the sensor module, and the data information includes vibration information, sound information and environmental temperature information;

[0009] One end of the power supply module is connected with the main control module, and the other end of the power supply module is connected with the communication module, the storage module and the sensor module respectively, and the main control module controls the power supply state of the communication module, the storage module and the sensor module through the power supply module;

[0010] The communication module is used to upload the data information obtained by the main control module to the control terminal;

[0011] The storage module is used to store data information.

[0012] The technical scheme has the following technical effects:

[0013] The application sets a multi-modal online sensing terminal, which combines "sound" (sound) and "eye" (vibration, temperature), captures the equipment state in real time, and remotely reports through a low-power wireless mode, can significantly improve the inspection efficiency, reduce the maintenance cost, and provide reliable data support for equipment health management and intelligent early warning.

[0014] As a further improvement of the sound and eye intelligent patrol sensor of the application, the sensor module includes a vibration sensor, a microphone sensor and a temperature detection unit.

[0015] The vibration sensor is used to obtain the vibration information of the external motor, the microphone sensor is used to obtain the sound information of the external motor, and the temperature detection unit is used to obtain the environmental temperature information of the external motor.

[0016] As a further improvement of the sound and eye intelligent patrol sensor of the application, when any of the vibration information exceeds the vibration threshold information, the sound information exceeds the sound threshold, or the environmental temperature information exceeds the temperature threshold, the main control module obtains data information through the sensor module and uploads the data information to the control terminal through the communication module.

[0017] As a further improvement of the sound and eye intelligent patrol sensor of the application, the vibration sensor is provided with an accelerometer and a gyroscope, and the accelerometer includes an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer.

[0018] The gyroscope includes an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer.

[0019] As a further improvement of the sound and eye intelligent patrol sensor of the application, the power supply end of the vibration sensor is provided with C13 capacitor and C14 capacitor, and the C13 capacitor and C14 capacitor filter the power input transmitted by the power supply module.

[0020] As a further improvement of the sound and eye intelligent patrol sensor of the application, the power input end of the microphone sensor is provided with C15 capacitor and C16 capacitor, and the C15 capacitor and C16 capacitor are used to filter the power input transmitted by the power supply module.

[0021] As a further improvement of the sound and eye intelligent patrol sensor of the application, the power input end of the storage module is provided with C2 capacitor and C3 capacitor, and the C2 capacitor and C3 capacitor are used to filter the power input transmitted by the power supply module.

[0022] The main control module reads and writes the storage module in Quad-SPI mode through the QSPI bus, and when the communication module works abnormally, the main control module stores the data information into the storage module.

[0023] As a further improvement of the sound purpose intelligent patrol sensor, the power supply module is provided with a plurality of power supply lines, and the enable end of each power supply line is controlled by the master control module.

[0024] As a further improvement of the sound purpose intelligent patrol sensor, the master control module is provided with a power supply monitoring unit, and the power supply monitoring unit is used for monitoring the power of the external power supply for supplying power to the power supply module.

[0025] As a further improvement of the sound purpose intelligent patrol sensor, the communication module is provided with an impedance control network, the communication module is connected with the IPEX connector through the impedance control network, and the impedance control network comprises an L1 inductor, a C22 capacitor and a C23 capacitor. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0027] Figure 1 It is a structural schematic diagram of the embodiment 1 in the present application;

[0028] Figure 2 It is a structural schematic diagram of the sensor module of the embodiment 1 in the present application;

[0029] Figure 3 It is a structural schematic diagram of the vibration sensor module of the embodiment 1 in the present application;

[0030] Figure 4 It is a circuit diagram of the embodiment 1-3 in the present application;

[0031] Among them:

[0032] Master control module;

[0033] 11-Power supply monitoring unit;

[0034] Power supply module;

[0035] Communication module;

[0036] Storage module;

[0037] Sensor module;

[0038] Vibration sensor;

[0039] Accelerometer;

[0040] Gyroscope;

[0041] Microphone sensor;

[0042] Temperature detection unit. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application.

[0044] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Although this application discloses preferred embodiments as described above, it is not intended to limit the claims. Any person skilled in the art can make several possible changes and modifications without departing from the concept of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.

[0046] It is known that various vibration sensors or sound sensors are currently available on the market and in academia for equipment condition monitoring, but the following major technical shortcomings still exist:

[0047] 1) Limited data in a single dimension

[0048] Relying solely on signals such as vibration or sound lacks multi-dimensional information fusion, making it prone to false alarms or missed alarms.

[0049] 2) Insufficient low-power continuous online capability

[0050] Wireless transmission or sensing modules are powered on for extended periods, resulting in high power consumption and making it difficult to achieve maintenance-free operation for more than six months.

[0051] 3) Poor robustness of long-distance transmission

[0052] Traditional Wi-Fi / 4G has limited coverage and poor penetration, making it unsuitable for complex scenarios such as mines and tunnels.

[0053] 4) Network disconnection or bandwidth bottleneck causes data loss

[0054] Online transmission relies on network real-time connectivity. Once disconnected or bandwidth limited, historical data cannot be completely preserved.

[0055] 5) Lack of self-power management

[0056] Due to the normal continuous power supply of each module in the iShowan technical solution, it cannot automatically save energy according to the state; the service life of the device battery is short, and the maintenance frequency is high.

[0057] Therefore, an intelligent inspection sensor capable of fusing vibration, sound and temperature signals, and having low-power dynamic power supply, long-distance strong coverage, and breakpoint resume transmission local cache capability is urgently needed to meet the long-term online and high-robustness inspection requirements of industrial sites.

[0058] The above is the motivation of the present application.

[0059] The present application will be described in further detail below in conjunction with specific embodiments, but the embodiments of the present application are not limited thereto.

[0060] Embodiments

[0061] As shown in Figures 1-3 In order to solve the problem that the sensor cannot realize multi-dimensional data collection in the prior art, the present application improves the technical solution of the existing motor (roller) working parameter collection sensor. Among them, the intelligent inspection sensor of the present application includes a main control module 1 and a power supply module 2, a communication module 3, a storage module 4 and a sensor module 5 connected with the main control module 1 respectively;

[0062] The main control module 1 obtains the data information of the external motor through the sensor module 5, and the data information includes vibration information, sound information and environmental temperature information;

[0063] One end of the power supply module 2 is connected with the main control module 1, and the other end of the power supply module 2 is connected with the communication module 3, the storage module 4 and the sensor module 5 respectively. The main control module 1 controls the power supply state of the communication module 3, the storage module 4 and the sensor module 5 through the power supply module 2;

[0064] The communication module 3 is used for uploading the data information obtained by the main control module 1 to the control terminal;

[0065] The storage module 4 is used for storing data information.

[0066] Specifically, when the device of the application is powered on, the main control module 1 (MCU) first completes its own startup, and turns on the power of the necessary sub-modules in turn through the power supply module 2: including the sensor module 5, the storage module 4 and the communication module. After the MCU confirms that each module responds normally through self-checking, it enters the standby or timed wake-up state.

[0067] Further, the technical scheme of the application collects three types of data, among which the vibration information is obtained from the MCU starting the vibration sensor 51 (ICM-45686), reading the three-axis accelerometer 511 gyroscope 512 data, obtaining the vibration amplitude, frequency spectrum characteristics and the like of the external motor running. The sound information is obtained from the MCU cooperating with the microphone sensor 52 (ICS-43434), collecting audio data at a preset frame rate, extracting sound intensity and abnormal noise patterns through short-time energy and spectrum analysis algorithm. And the environmental temperature information is obtained from the MCU reading the temperature detection unit 53 output, which is used as the reference of environmental temperature or component temperature.

[0068] Further, the sensor module 5 includes the vibration sensor 51, the microphone sensor 52 and the temperature detection unit 53; the vibration sensor 51 is used to obtain the vibration information of the external motor, the microphone sensor 52 is used to obtain the sound information of the external motor, and the temperature detection unit 53 is used to obtain the environmental temperature information of the external motor. Among them, the vibration sensor 51 is provided with an accelerometer 511 and a gyroscope 512, and the accelerometer 511 includes an X-axis accelerometer 511, a Y-axis accelerometer 511 and a Z-axis accelerometer 511; the gyroscope 512 includes an X-axis accelerometer 511, a Y-axis accelerometer 511 and a Z-axis accelerometer 511.

[0069] In the specific implementation process, the vibration sensor 51 is connected with the SPI2 hardware interface of the main control module 1, wherein the physical connection mode follows:

[0070] SPI2_SCLK → ICM-45686 AP_SCL;

[0071] SPI2_MOSI → ICM-45686 AP_SDA;

[0072] SPI2_MISO → ICM-45686 AP_SDO;

[0073] SPI2_CS → ICM-45686 AP_CS;

[0074] Further, the above communication timing satisfies:

[0075] The main control module 1 (MCU) pulls down the CS to select the sensor;

[0076] Send "Read Register Start Address" command (with the highest bit 1 to indicate a read operation);

[0077] Continuous clock output, ICM-45686 returns multiple bytes on the MISO line:

[0078] OUTX_L_A, OUTX_H_A (X-axis acceleration low / high - 8 bits);

[0079] OUTY_L_A, OUTY_H_A (Y-axis acceleration);

[0080] OUTZ_L_A, OUTZ_H_A (Z-axis acceleration);

[0081] OUTX_L_G,... (X-axis gyroscope 512 low / high 8 bits);

[0082] OUTY_L_G,... (Y-axis gyroscope 512 low / high 8 bits);

[0083] OUTZ_L_G,... (Z-axis gyroscope 512 low / high 8 bits)

[0084] And the MCU reads it and pulls up the CS to complete a data exchange.

[0085] Specifically, in the absence of abnormal conditions, the RTC timer of the main control module 1 wakes up the MCU every preset time (such as 5 minutes) to perform a routine collection → processing → reporting process. When any of the events of the vibration information exceeding the vibration threshold information, the sound information exceeding the sound threshold, or the environmental temperature information exceeding the temperature threshold occurs, the main control module 1 obtains data information through the sensor module 5 and uploads the data information to the control terminal through the communication module 3. Among them, the sensor module 5 generates an interrupt signal, and the MCU wakes up from the standby or low-power state immediately and executes the abnormal data collection and reporting preferentially.

[0086] Further, the communication module 3: adopts the LILDA QB20 series-LoRa network, which is small in size and has a maximum transmission power of +22dBm. It supports 1.8-3.7 power supply and receives a current of <6mA. It uses a unique LoRa modulation to increase the security of communication. In the specific implementation process, if the LoRa network is smooth, the MCU sends the processed data packet to the backend control terminal through the communication module.

[0087] If the network is busy or disconnected, the MCU writes the data into the storage module 4; after the network is restored, it is uploaded in time sequence in batches to ensure that there is no data loss.

[0088] Embodiment

[0089] AsFigures 1-4 As shown, in order to further embody the stability of the sensor module 5 of the present application in data acquisition, further, the power supply end of the vibration sensor 51 is provided with C13 capacitor and C14 capacitor, and C13 capacitor and C14 filter the power input transmitted by the power supply module 2. Thus, it can ensure that the vibration sensor 51 obtains stable power supply and avoids data errors caused by power fluctuations. The filtering effect of C13 capacitor and C14 capacitor can effectively remove high-frequency noise in the transmission of the power supply module 2, and provide pure DC power for the vibration sensor 51, thereby improving the accuracy and stability of data acquisition.

[0090] At the same time, the power input end of the microphone sensor 52 is provided with C15 capacitor and C16 capacitor, which are also used for filtering the power input transmitted by the power supply module 2. This design ensures that the microphone sensor 52 is not disturbed by power noise when collecting sound information, and improves the purity and reliability of sound data.

[0091] In addition, the power input end of the storage module 4 is also provided with C2 capacitor and C3 capacitor for filtering the power input transmitted by the power supply module 2. This not only protects the storage module 4 from power fluctuations, but also ensures the integrity and security of the data. When the host control module 1 reads and writes the storage module 4 through the QSPI bus in Quad-SPI mode, stable power supply ensures high-speed and reliable storage of data. In addition, the storage module 4 of the present application is a Flash storage module 4, which adopts WSON-8-EP(5x6) packaging, and has small volume. The 32KB block erase time is about 120ms, which provides faster erase speed, and the page write time is about 800us, which provides faster data write capability. The data retention is up to 20 years, which ensures the data stability, and the working voltage is 1.7-1.95.

[0092] The vibration sensor 51-icm45686 adopts a unique BalancedGyro technology, which can achieve excellent anti-shock and temperature stability performance, and provide ultra-low power consumption; has a high FSR of 4000 dps and 32g; has embedded apex motion function, including pedometer, tilt and touch detection, free fall detection, ultra-low power motion wake-up and important motion detection; low power consumption, 6-axis current consumption is 0.42mA in low noise mode, supports ultra-low power mode.

[0093] The microphone module adopts ics43434, has I2S output, can be directly connected to digital processor without external decoder; low power consumption, can enter low power consumption mode when not in use; has a high SNR of 64 dBA and a wideband frequency response; adopts a small 3.50 × 2.65 × 0.98 mm surface mount package.

[0094] Other than the same as the embodiments, this embodiment will not be described again.

[0095] Embodiment

[0096] As Figures 1-4 shown, different from embodiment 1 is that: in order to further improve the control of external power supply in this application, improve the service life of external power supply. Further, the power supply module 2 is provided with a plurality of power supply lines, and the enable end of each power supply line is controlled by the main control module 1. This design enables the main control module 1 to flexibly turn on or off the power supply line according to the working state and demand of each module, realizing the fine management of power supply. This not only reduces the overall power consumption, but also prolongs the service life of the equipment.

[0097] Among them, the power supply module 2 distributes the input power (POWER_Flash, POWER_Sensor1, POWER_Sensor2, POWER_Lora) to:

[0098] V-Flash: for source storage module 4 (QSPI Flash)

[0099] V-Sensor1: for vibration sensor 51, wherein the temperature detection unit 53 is stored in the vibration sensor 51, and shares a power supply with the vibration sensor 51;

[0100] V-Sensor2: for microphone sensor 52;

[0101] V-Lora: for communication module;

[0102] Further, 1MΩ detection resistor (R1 / R3 / R5 / R7) is connected in series before each power input in the power supply module 2, which can realize detection or voltage division; each BL9165-180BARN LDO has an EN (Enable) pin, and the MCU can independently control the power-on or power-off of each module.

[0103] In addition, the main control module 1 is also provided with a power supply monitoring unit 11 for monitoring the power of the external power supply that supplies power to the power supply module 2. When the power is insufficient, the power supply monitoring unit 11 will promptly issue an alarm to remind the user to replace the power supply or take other measures to ensure the continuous and stable operation of the equipment.

[0104] The communication module 3 is provided with an impedance control network, which is connected with the IPEX connector through the impedance control network. The impedance control network includes L1 inductor, C22 capacitor and C23 capacitor and other elements, which work together to ensure the stable transmission of communication signals. This design improves the anti-interference ability of the communication module 3, so that the data can be stably and reliably transmitted to the control terminal in complex environment.

[0105] In summary, the sound purpose intelligent patrol sensor of the application successfully solves the technical defects existing in the prior art through a series of technical improvements and innovative designs. It not only realizes the fusion processing of multi-dimensional information, but also has the ability of low-power dynamic power supply, long-distance strong coverage, breakpoint continuation local cache and the like, and meets the long-term online and high-frequency inspection requirements of the industrial field.

[0106] The above is only the preferred embodiment of the application and is not used to limit the application. For those skilled in the art, the application can have various changes and modifications. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An acoustic vision sensor, characterized by, The application relates to a motor control system, which comprises a master control module (1) and a power supply module (2), a communication module (3), a storage module (4) and a sensor module (5) connected with the master control module (1) respectively. The master control module (1) acquires data information of an external motor through the sensor module (5), and the data information comprises vibration information, sound information and environmental temperature information. One end of the power supply module (2) is connected with the master control module, and the other end of the power supply module (2) is connected with the communication module (3), the storage module (4) and the sensor module (5) respectively, and the master control module (1) controls the power supply state of the communication module (3), the storage module (4) and the sensor module (5) through the power supply module (2). The communication module (3) is used for uploading the data information acquired by the master control module to a control terminal. The storage module (4) is used for storing the data information.

2. The sensor according to claim 1, wherein The sensor module (5) comprises a vibration sensor (51), a microphone sensor (52) and a temperature detection unit (53). The vibration sensor (51) is used for acquiring vibration information of an external motor, the microphone sensor (52) is used for acquiring sound information of the external motor, and the temperature detection unit (53) is used for acquiring environmental temperature information of the external motor.

3. The sensor according to claim 2, wherein When any one of the following events occurs, that is, the vibration information exceeds vibration threshold information, the sound information exceeds sound threshold or the environmental temperature information exceeds temperature threshold, the master control module (1) acquires the data information through the sensor module (5) and uploads the data information to a control terminal through the communication module (3).

4. The sensor according to claim 2, wherein The vibration sensor (51) is provided with an accelerometer (511) and a gyroscope (512), and the accelerometer (511) comprises an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer. The gyroscope (512) comprises an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer.

5. The sensor according to claim 2, wherein A C13 capacitor and a C14 capacitor are arranged at a power supply end of the vibration sensor, and the C13 capacitor and the C14 capacitor are used for filtering power input transmitted by the power supply module (2).

6. The sensor according to claim 2, wherein A C15 capacitor and a C16 capacitor are arranged at a power supply input end of the microphone sensor (52), and the C15 capacitor and the C16 capacitor are used for filtering power input transmitted by the power supply module (2).

7. The sensor according to claim 1, wherein A C2 capacitor and a C3 capacitor are arranged at a power supply input end of the storage module (4), and the C2 capacitor and the C3 capacitor are used for filtering power input transmitted by the power supply module (2). The master control module (1) reads and writes the storage module (4) in a Quad-SPI mode through a QSPI bus, and when the communication module (3) works abnormally, the master control module stores the data information into the storage module (4).

8. The sensor according to claim 1, wherein, The power supply module (2) is provided with a plurality of power supply circuits, and the enable ends of the power supply circuits are controlled by the master control module (1).

9. The sensor according to claim 1, wherein, The master module (1) is provided with a power monitoring unit (11) for monitoring the power of an external power supply for supplying power to the power supply module (2).

10. The sensor according to claim 1, wherein, The communication module (3) is provided with an impedance control network, the communication module (3) is connected with IPEX connector through the impedance control network, and the impedance control network comprises an L1 inductor, a C22 capacitor and a C23 capacitor.

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