Hazardous rock monitoring device based on ZigBee wireless vibration sensor

Abstract

The invention provides a dangerous rock monitoring device based on ZigBee wireless vibration sensors, and the device employs a CC2530 chip as a core control unit, enables the vibration sensors to be disposed on the surface of rock in a distributed manner, monitors the vibration frequency and vibration displacement of each sensor position in an area in real time, and achieves the real-time monitoring of the vibration frequency and vibration displacement. A network link between each sensor and the ZigBee terminal node adopts an RS485 bus interconnection mode to collect data, an OLED display module is used as a display device, monitoring data is uploaded to a cloud platform through a 4G wireless network transmission unit, the cloud platform stores the monitoring data received in real time to a database, and a monitoring center reads the monitoring data in real time through the cloud platform and sends the monitoring data to the ZigBee terminal node. And the acousto-optic early warning level is judged according to the displacement value. On the basis of the low-cost ZigBee technology, 4G is adopted to transmit data, the cost performance is high, the cost is low, the system is suitable for large-scale deployment and networking, the reliability and expansibility are high, and sustainable application conditions are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of geological disaster monitoring, and in particular to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor. Background Art

[0002] At present, the monitoring methods used in common dangerous rock monitoring systems mainly include sensor target positioning method based on GPS (Global Positioning System) satellite, dangerous rock displacement measurement method based on machine vision digital image processing, dangerous rock collapse prediction method based on deep learning, and dangerous rock monitoring method based on wireless sensors.

[0003] Different types of vibration sensors have been increasingly used in the field of dangerous rock monitoring. Among them, wireless vibration sensor networks integrate perception, computing and transmission capabilities, and have obvious advantages in the field of dangerous rock monitoring.

[0004] Nowadays, multi-point sensors in the field of dangerous rock monitoring have many problems such as difficulty in powering and wiring nodes, short battery life of equipment, high node costs, and poor scalability. Summary of the invention

[0005] The present invention provides a dangerous rock monitoring device based on ZigBee wireless vibration sensor, which is used to solve the above-mentioned defects of using multi-point sensors for dangerous rock monitoring in the prior art, and realizes a dangerous rock monitoring device based on ZigBee wireless vibration sensor, which is simple and efficient, flexible in deployment, can be remotely monitored, has low construction and maintenance costs, can be networked on a large scale, and has higher network reliability and security.

[0006] The present invention provides a dangerous rock monitoring device based on a ZigBee wireless vibration sensor, comprising:

[0007] Multiple vibration sensor modules are fixed at different positions on the surface of the dangerous rock. Each vibration sensor module includes a power supply, a CC2530 main chip, a 4G wireless communication module, a vibration sensor, an OLED display screen and a sensor outer box. The power supply, the main chip, the 4G wireless communication module, the vibration sensor and the display screen are located in the sensor outer box. The sensor outer box is fixed on the surface of the dangerous rock. The CC2530 main chip is the core control unit.

[0008] The power supply is connected to the CC2530 main chip, the vibration sensor, and the 4G wireless communication module, and the power supply is used to power the CC2530 main chip, the vibration sensor, and the 4G wireless communication module;

[0009] The vibration sensor is connected to the CC2530 main chip, and the vibration sensor is used to collect the vibration displacement and vibration frequency of the dangerous rock;

[0010] A ZigBee module is connected to the CC2530 main chip and the vibration sensor, and is used to receive and send the vibration displacement and vibration frequency of the dangerous rock collected by the vibration sensor;

[0011] The OLED display screen is connected to the ZigBee module, and the OLED display screen is used to display the vibration displacement and vibration frequency of the dangerous rock;

[0012] A host computer is connected to the ZigBee module via the 4G wireless communication module, and the host computer is used to receive the vibration displacement and vibration frequency of the dangerous rock, and display and store the vibration displacement and vibration frequency.

[0013] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the ZigBee module includes a ZigBee terminal and a ZigBee coordinator;

[0014] The ZigBee terminal is used to aggregate and transmit the vibration displacement and vibration frequency of the dangerous rock collected by the vibration sensor to the ZigBee coordinator;

[0015] The ZigBee coordinator is used to send the received vibration displacement and vibration frequency of the dangerous rock to the cloud platform through the RS485 interface and the 4G wireless communication module, so that the user can log in to the cloud platform through the APP or the web page to remotely view the vibration displacement and vibration frequency of the dangerous rock.

[0016] A dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention also includes a monitoring terminal and an alarm device;

[0017] The monitoring terminal is connected to the cloud platform via a network port, and the monitoring terminal is used to receive the vibration displacement and vibration frequency of the dangerous rock sent by the cloud platform and perform analysis;

[0018] The external interface of the monitoring terminal is connected to the alarm device by a communication cable, and the alarm device generates an alarm according to the analysis result of the monitoring terminal.

[0019] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the monitoring terminal is used to determine the alarm level of the alarm device according to the vibration displacement and vibration frequency of the dangerous rock, and output an alarm signal corresponding to the alarm level to trigger the alarm device to alarm.

[0020] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the greater the alarm level, the louder the alarm sound of the alarm device and the stronger the light emission.

[0021] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the monitoring terminal is specifically used for:

[0022] Calculate the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by all vibration sensors;

[0023] The alarm level of the alarm device is determined according to the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock.

[0024] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the monitoring terminal is specifically used for:

[0025] Compare the average value of the vibration displacement with the vibration displacement range corresponding to each alarm level, and compare the average value of the vibration frequency with the vibration frequency range corresponding to each alarm level;

[0026] If the average value of the vibration displacement and the average value of the vibration frequency are respectively within the vibration displacement range and the vibration frequency range corresponding to the same alarm level, the same alarm level is used as the alarm level of the alarm device.

[0027] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the monitoring terminal is specifically used for:

[0028] Clustering all vibration sensors according to the coordinate positions of all vibration sensors on the surface of the dangerous rock, and the collected vibration displacement and vibration frequency of the dangerous rock;

[0029] Determine the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by each type of vibration sensor;

[0030] The alarm level of the alarm device is determined according to the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by each type of vibration sensor.

[0031] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the monitoring terminal is specifically used for:

[0032] The average value of the vibration displacement corresponding to each type of vibration sensor is compared with the vibration displacement range corresponding to each alarm level, and the average value of the vibration frequency corresponding to each type of vibration sensor is compared with the vibration frequency range corresponding to each alarm level;

[0033] If the average value of the vibration displacement and the average value of the vibration frequency are respectively within the vibration displacement range and the vibration frequency range corresponding to the same alarm level, the same alarm level is used as the alarm level corresponding to each type of vibration sensor;

[0034] The maximum value among the alarm levels corresponding to each type of vibration sensor is used as the alarm level of the alarm device.

[0035] According to a dangerous rock monitoring device based on a ZigBee wireless vibration sensor provided by the present invention, the monitoring terminal is specifically used for:

[0036] Determine the average coordinate position of each type of vibration sensor;

[0037] Determine the distance between the average values ​​of the coordinate positions of any two types of vibration sensors;

[0038] For any type of vibration sensor, determine the weight corresponding to the other type of vibration sensor according to the distance between the other type of vibration sensor and the average value of the coordinate position of the vibration sensor of this type, and the larger the distance, the smaller the weight;

[0039] The weights corresponding to the other types of vibration sensors are weighted and summed with the average values ​​of the vibration displacements and the average values ​​of the vibration frequencies corresponding to the other types of vibration sensors to obtain the sum of the vibration displacements and the sum of the vibration frequencies;

[0040] adding an average value of the vibration displacements corresponding to the vibration sensors of this type to the sum of the vibration displacements, and adding an average value of the vibration frequencies corresponding to the vibration sensors of this type to the sum of the vibration frequencies;

[0041] The alarm level of the alarm device is determined according to the two addition results.

[0042] The dangerous rock monitoring device based on ZigBee wireless vibration sensor provided by the present invention takes low-cost ZigBee technology as the basis, adopts 4G to transmit data, has strong anti-interference ability, and the transmission distance is almost unlimited. Compared with 5G transmission, its network construction cost is low and the base station coverage is wide. A device that can remotely monitor dangerous rocks is designed. The device has high cost performance and low cost, is suitable for large-scale deployment and networking, and has high reliability and scalability, and has sustainable application conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 This is one of the structural schematic diagrams of the dangerous rock monitoring device based on the ZigBee wireless vibration sensor provided by the present invention;

[0045] Figure 2 This is the second structural schematic diagram of the dangerous rock monitoring device based on the ZigBee wireless vibration sensor provided by the present invention;

[0046] Figure 3 It is a schematic diagram of the network interface connection of the wireless vibration sensor in the dangerous rock monitoring device based on the ZigBee wireless vibration sensor provided by the present invention;

[0047] Figure 4 The present invention provides a schematic diagram of the RS485 bus circuit principle in a dangerous rock monitoring device based on a ZigBee wireless vibration sensor. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Combine the following Figure 1 The invention discloses a dangerous rock monitoring device based on a ZigBee wireless vibration sensor, comprising:

[0050] A plurality of vibration sensor modules are fixed at different positions on the surface of the dangerous rock, each vibration sensor module includes a power supply 5, a CC2530 main chip 6, a 4G wireless communication module 7, a vibration sensor 8, an OLED (Organic Light Emitting Diode) display screen 10 and a sensor outer box 9, wherein the power supply 5, the CC2530 main chip 6, the 4G wireless communication module 7, the vibration sensor 8 and the OLED display screen 10 are located in the sensor outer box 9, the sensor outer box 9 is fixed on the surface of the dangerous rock, and the CC2530 main chip 6 is a core control unit;

[0051] The power supply 5 is connected to the CC2530 main chip 6, the vibration sensor 8, and the 4G wireless communication module 7, and the power supply 5 is used to supply power to the CC2530 main chip 6, the vibration sensor 8, and the 4G wireless communication module 7;

[0052] The vibration sensor 8 is connected to the CC2530 main chip 6, and the vibration sensor 8 is used to collect the vibration displacement and vibration frequency of the dangerous rock;

[0053] A ZigBee module is connected to the CC2530 main chip 6 and to the vibration sensor 8, and the ZigBee module is used to receive and send the vibration displacement and vibration frequency of the dangerous rock collected by the vibration sensor 8;

[0054] The OLED display screen 10 is connected to the ZigBee module, and the OLED display screen 10 is used to display the vibration displacement and vibration frequency of the dangerous rock;

[0055] The host computer is connected to the ZigBee module via the 4G wireless communication module 7, and is used to receive the vibration displacement and vibration frequency of the dangerous rock, and display and store the vibration displacement and vibration frequency.

[0056] The host computer can display the data in waveform through APP (Application) or web page.

[0057] This embodiment uses low-cost ZigBee technology as the basis and adopts 4G to transmit data. It has strong anti-interference ability and almost unlimited transmission distance. Compared with 5G transmission, its network construction cost is low and the base station coverage is wide. A device for remote monitoring of dangerous rocks is designed. The device is cost-effective and low-cost, suitable for large-scale deployment and networking, and has high reliability and scalability, and has sustainable application conditions.

[0058] On the basis of the above embodiment, the ZigBee module in this embodiment includes a ZigBee terminal and a ZigBee coordinator;

[0059] The ZigBee terminal is used to aggregate and transmit the vibration displacement and vibration frequency of the dangerous rock collected by the vibration sensor to the ZigBee coordinator;

[0060] The ZigBee coordinator is used to send the received vibration displacement and vibration frequency of the dangerous rock to the cloud platform through the RS485 interface and the 4G wireless communication module, so that the user can log in to the cloud platform through the APP or the web page to remotely view the vibration displacement and vibration frequency of the dangerous rock.

[0061] The circuit structure of the ZigBee terminal mainly includes vibration sensor, networking indicator light, CH340G (USB to TTL), RF (Radio Frequency) antenna circuit and system complex circuit. The node circuit is only responsible for sensor data collection and wireless ZigBee communication functions. When the dangerous rock is displaced, the vibration sensor can collect the displacement data of the dangerous rock. After each collection cycle, the terminal node will package the collected data and transmit it to the ZigBee aggregation node coordinator through the network.

[0062] The circuit structure of the ZigBee coordinator mainly includes 4G wireless communication module, reset circuit, power module, CH340G (USB to TTL), RF antenna and networking indicator light. It realizes the uploading and sending of data control instructions and wireless network networking and maintenance, and assists data transmission between the system data acquisition layer and the monitoring center.

[0063] Based on the above embodiments, Figure 2 As shown, this embodiment also includes a monitoring terminal 3 and an alarm device 4;

[0064] The monitoring terminal 3 is connected to the cloud platform 2 via a network port, and the monitoring terminal 3 is used to receive the vibration displacement and vibration frequency of the dangerous rock sent by the cloud platform 2 and perform analysis;

[0065] The external interface of the monitoring terminal 3 is connected to the alarm device 4 using a communication cable, and the alarm device 4 issues an alarm according to the analysis result of the monitoring terminal 3 .

[0066] The vibration sensor module 1 is placed on the rock surface to collect the vibration frequency and vibration displacement data of the rock in the monitoring area throughout the day, and upload the data to the cloud platform 2 through the 4G wireless data transmission unit and signal antenna.

[0067] The monitoring terminal 3 is connected to the cloud platform 2 through a network port, receives cloud platform data in real time and analyzes and processes the data. The external interface of the monitoring terminal 3 uses a communication cable to connect to the alarm device 4, which can immediately transmit an alarm signal to trigger the alarm device when the alarm threshold is reached.

[0068] The dangerous rock monitoring device provided in this embodiment uses the CC2530 chip as the core control unit. Several vibration sensors are deployed at each dangerous rock monitoring point to complete the real-time data collection of dangerous rock displacement. The vibration sensor uses the ZigBee network to aggregate and transmit the collected data to the coordinator node through the terminal node. The coordinator node completes the transmission network connection with the received real-time sensor collection data through the RS485 interface and the 4G module, and finally sends the collected data to the cloud platform. Users can use the APP or web page to log in to the cloud platform to remotely view the information of each monitoring point.

[0069] The data acquisition unit can use the WTVB01-485 vibration sensor with displacement ranging function. The sensor and ZigBee terminal nodes are deployed in a distributed manner. The wireless vibration sensor network interface connection diagram is as follows: Figure 3 In order to ensure the stability of data collection, the network link adopts the RS485 bus interconnection mode.

[0070] RS485 bus circuit schematic diagram Figure 4 As shown, the RS485 connection circuit can use RS485 chip, where RO pin is connected to P0_2 / RX of the main control chip, RE pin is connected to P0_7 / EN of the main control chip, DE pin is connected to P0_3 / TX of the main control chip, and P4 pin is connected to the laser sensor. In order to adapt to the field environment, TVS, thermistor and discharge tube are introduced into the RS485 bus circuit to form port protection.

[0071] On the basis of the above embodiment, the monitoring terminal in this embodiment is used to determine the alarm level of the alarm device according to the vibration displacement and vibration frequency of the dangerous rock, and output an alarm signal corresponding to the alarm level to trigger the alarm device to alarm.

[0072] On the basis of the above embodiment, in this embodiment, the greater the alarm level, the louder the alarm sound of the alarm device and the stronger the light emission.

[0073] Based on the above embodiment, the monitoring terminal in this embodiment is specifically used for:

[0074] Calculate the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by all vibration sensors;

[0075] The alarm level of the alarm device is determined according to the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock.

[0076] Based on the above embodiment, the monitoring terminal in this embodiment is specifically used for:

[0077] Compare the average value of the vibration displacement with the vibration displacement range corresponding to each alarm level, and compare the average value of the vibration frequency with the vibration frequency range corresponding to each alarm level;

[0078] If the average value of the vibration displacement and the average value of the vibration frequency are respectively within the vibration displacement range and the vibration frequency range corresponding to the same alarm level, the same alarm level is used as the alarm level of the alarm device.

[0079] If the average value of the vibration displacement and the average value of the vibration frequency are not within the vibration displacement range and vibration frequency range corresponding to the same alarm level, continue to determine whether the average value of the vibration displacement is within the vibration displacement range corresponding to a certain alarm level. If so, use the alarm level as the alarm level of the alarm device.

[0080] Based on the above embodiment, the monitoring terminal in this embodiment is specifically used for:

[0081] Clustering all vibration sensors according to the coordinate positions of all vibration sensors on the surface of the dangerous rock, and the collected vibration displacement and vibration frequency of the dangerous rock;

[0082] Determine the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by each type of vibration sensor;

[0083] The alarm level of the alarm device is determined according to the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by each type of vibration sensor.

[0084] Based on the above embodiment, the monitoring terminal in this embodiment is specifically used for:

[0085] The average value of the vibration displacement corresponding to each type of vibration sensor is compared with the vibration displacement range corresponding to each alarm level, and the average value of the vibration frequency corresponding to each type of vibration sensor is compared with the vibration frequency range corresponding to each alarm level;

[0086] If the average value of the vibration displacement and the average value of the vibration frequency are respectively within the vibration displacement range and the vibration frequency range corresponding to the same alarm level, the same alarm level is used as the alarm level corresponding to each type of vibration sensor;

[0087] The maximum value among the alarm levels corresponding to each type of vibration sensor is used as the alarm level of the alarm device.

[0088] Based on the above embodiment, the monitoring terminal in this embodiment is specifically used for:

[0089] Determine the average coordinate position of each type of vibration sensor;

[0090] Determine the distance between the average values ​​of the coordinate positions of any two types of vibration sensors;

[0091] For any type of vibration sensor, determine the weight corresponding to the other type of vibration sensor according to the distance between the other type of vibration sensor and the average value of the coordinate position of the vibration sensor of this type, and the larger the distance, the smaller the weight;

[0092] The weights corresponding to the other types of vibration sensors are weighted and summed with the average values ​​of the vibration displacements and the average values ​​of the vibration frequencies corresponding to the other types of vibration sensors to obtain the sum of the vibration displacements and the sum of the vibration frequencies;

[0093] adding an average value of the vibration displacements corresponding to the vibration sensors of this type to the sum of the vibration displacements, and adding an average value of the vibration frequencies corresponding to the vibration sensors of this type to the sum of the vibration frequencies;

[0094] The alarm level of the alarm device is determined according to the two addition results.

[0095] The weighted sum of the two addition results may be calculated, the weighted sum may be compared with the value range corresponding to the alarm level, and the alarm level within the value range where the weighted sum is located may be used as the alarm level of the alarm device.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dangerous rock monitoring device based on ZigBee wireless vibration sensor, characterized in that: include: Multiple vibration sensor modules are fixed at different positions on the surface of the dangerous rock. Each vibration sensor module includes a power supply, a CC2530 main chip, a 4G wireless communication module, a vibration sensor, an OLED display screen and a sensor outer box. The power supply, the main chip, the 4G wireless communication module, the vibration sensor and the display screen are located in the sensor outer box. The sensor outer box is fixed on the surface of the dangerous rock. The CC2530 main chip is the core control unit. The power supply is connected to the CC2530 main chip, the vibration sensor, and the 4G wireless communication module, and the power supply is used to power the CC2530 main chip, the vibration sensor, and the 4G wireless communication module; The vibration sensor is connected to the CC2530 main chip, and the vibration sensor is used to collect the vibration displacement and vibration frequency of the dangerous rock; A ZigBee module is connected to the CC2530 main chip and the vibration sensor, and is used to receive and send the vibration displacement and vibration frequency of the dangerous rock collected by the vibration sensor; The OLED display screen is connected to the ZigBee module, and the OLED display screen is used to display the vibration displacement and vibration frequency of the dangerous rock; A host computer is connected to the ZigBee module via the 4G wireless communication module, and the host computer is used to receive the vibration displacement and vibration frequency of the dangerous rock, and display and store the vibration displacement and vibration frequency.

2. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 1 is characterized in that: The ZigBee module includes a ZigBee terminal and a ZigBee coordinator; The ZigBee terminal is used to aggregate and transmit the vibration displacement and vibration frequency of the dangerous rock collected by the vibration sensor to the ZigBee coordinator; The ZigBee coordinator is used to send the received vibration displacement and vibration frequency of the dangerous rock to the cloud platform through the RS485 interface and the 4G wireless communication module, so that the user can log in to the cloud platform through the APP or the web page to remotely view the vibration displacement and vibration frequency of the dangerous rock.

3. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 2 is characterized in that: It also includes monitoring terminals and alarm devices; The monitoring terminal is connected to the cloud platform via a network port, and the monitoring terminal is used to receive the vibration displacement and vibration frequency of the dangerous rock sent by the cloud platform and perform analysis; The external interface of the monitoring terminal is connected to the alarm device by a communication cable, and the alarm device generates an alarm according to the analysis result of the monitoring terminal.

4. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 3 is characterized in that: The monitoring terminal is used to determine the alarm level of the alarm device according to the vibration displacement and vibration frequency of the dangerous rock, and output an alarm signal corresponding to the alarm level to trigger the alarm device to alarm.

5. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 4 is characterized in that: The greater the alarm level, the louder the alarm sound of the alarm device and the stronger the light emission.

6. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 4 is characterized in that: The monitoring terminal is specifically used for: Calculate the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by all vibration sensors; The alarm level of the alarm device is determined according to the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock.

7. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 6 is characterized in that: The monitoring terminal is specifically used for: Compare the average value of the vibration displacement with the vibration displacement range corresponding to each alarm level, and compare the average value of the vibration frequency with the vibration frequency range corresponding to each alarm level; If the average value of the vibration displacement and the average value of the vibration frequency are respectively within the vibration displacement range and the vibration frequency range corresponding to the same alarm level, the same alarm level is used as the alarm level of the alarm device.

8. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 4 is characterized in that: The monitoring terminal is specifically used for: Clustering all vibration sensors according to the coordinate positions of all vibration sensors on the surface of the dangerous rock, and the collected vibration displacement and vibration frequency of the dangerous rock; Determine the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by each type of vibration sensor; The alarm level of the alarm device is determined according to the average value of the vibration displacement and the average value of the vibration frequency of the dangerous rock collected by each type of vibration sensor.

9. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 8, characterized in that: The monitoring terminal is specifically used for: The average value of the vibration displacement corresponding to each type of vibration sensor is compared with the vibration displacement range corresponding to each alarm level, and the average value of the vibration frequency corresponding to each type of vibration sensor is compared with the vibration frequency range corresponding to each alarm level; If the average value of the vibration displacement and the average value of the vibration frequency are respectively within the vibration displacement range and the vibration frequency range corresponding to the same alarm level, the same alarm level is used as the alarm level corresponding to each type of vibration sensor; The maximum value among the alarm levels corresponding to each type of vibration sensor is used as the alarm level of the alarm device.

10. The dangerous rock monitoring device based on ZigBee wireless vibration sensor according to claim 8, characterized in that: The monitoring terminal is specifically used for: Determine the average coordinate position of each type of vibration sensor; Determine the distance between the average values ​​of the coordinate positions of any two types of vibration sensors; For any type of vibration sensor, determine the weight corresponding to the other type of vibration sensor according to the distance between the other type of vibration sensor and the average value of the coordinate position of the vibration sensor of this type, and the larger the distance, the smaller the weight; The weights corresponding to the other types of vibration sensors are weighted and summed with the average values ​​of the vibration displacements and the average values ​​of the vibration frequencies corresponding to the other types of vibration sensors to obtain the sum of the vibration displacements and the sum of the vibration frequencies; adding an average value of the vibration displacements corresponding to the vibration sensors of this type to the sum of the vibration displacements, and adding an average value of the vibration frequencies corresponding to the vibration sensors of this type to the sum of the vibration frequencies; The alarm level of the alarm device is determined according to the two addition results.

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