Forest fire monitoring device and system

Abstract

The utility model belongs to the technical field of fire early warning systems, and particularly relates to a forest fire monitoring device and system, which comprises a fixing piece, a supporting piece, a mounting box and a detection module. The fixing part is used for being inserted on the ground of a forest; the bottom of the supporting piece is detachably connected with the top of the fixing piece. The bottom of the mounting box is fixedly connected with the top of the supporting piece; the detection module is mounted in the mounting box; the detection module comprises a storage battery pack and a detection node circuit board; the detection node circuit board comprises a temperature and humidity sensor unit, a smoke sensor unit, a combustible gas detection sensor unit, an illumination sensor unit and a Zigbee processing module; the detection module is used for collecting temperature and humidity, smoke, combustible gas and illumination intensity data in a forest and transmitting the data to external equipment through the Zigbee processing module. The monitoring device is inserted in the soil layer of the forest, installation is convenient, data are uploaded in a Zigbee communication mode, wiring is not needed, the monitoring cost is effectively reduced, power consumption is low, cost is low, and safety is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire early warning systems, and particularly relates to a forest fire monitoring device and system. Background Art

[0002] In recent years, forest fires have occurred frequently, which not only destroyed the ecological environment, but also threatened the safety of human life and property. The traditional forest fire monitoring system is composed of multiple wired network cameras. The wiring is restricted by the geographical environment, the comprehensive cost is high, and it cannot actively monitor the specific situation of the forest in real time. When the supervisors find obvious fire conditions in the monitoring screen, the fire situation cannot be underestimated. When they go to put out the fire, the flames have already destroyed the forest, and the loss has reached an irreversible point. The current forest fire monitoring system has problems such as being restricted by the geographical environment, high cost, and poor real-time performance. A new type of forest fire monitoring device is needed to solve these problems. Utility Model Content

[0003] The purpose of the utility model is to provide a forest fire monitoring device and system, so as to overcome the technical problems of the forest fire monitoring system in the prior art, such as being restricted by the geographical environment, high cost, and poor real-time performance. The specific technical solution is as follows:

[0004] A forest fire monitoring device, comprising:

[0005] Fixing pieces for planting cuttings on the forest floor;

[0006] A supporting member, wherein the bottom of the supporting member is detachably connected to the top of the fixing member;

[0007] An installation box, the bottom of which is fixedly connected to the top of the support member;

[0008] A detection module, wherein the detection module is installed inside the installation box;

[0009] The detection module includes a battery pack and a detection node circuit board; the detection node circuit board includes a temperature and humidity sensor unit, a smoke sensor unit, a combustible gas detection sensor unit, a light sensor unit, and a Zigbee processing module; the battery pack is connected to the temperature and humidity sensor unit, the smoke sensor unit, the combustible gas detection sensor unit, the light sensor unit, and the Zigbee processing module respectively;

[0010] The detection module is used to collect temperature and humidity, smoke, combustible gas and light intensity data in the forest, and transmit it to external devices through the Zigbee processing module.

[0011] Preferably, the fixing member is a tubular structure, and an oblique section is provided at the bottom of the fixing member for quickly piercing the soil layer of the forest for installation and fixation; a first mounting ring is provided at the top of the fixing member, and a notch is provided on the first mounting ring, and the notch is used for detachable connection with the support member by bolts.

[0012] Preferably, the support member comprises a second mounting ring, a support column, and a support rod;

[0013] The second mounting ring is fixedly connected to the bottom of the support column, the top edge of the support column is fixedly connected to the bottom of the support rod, and the top of the support rod is fixedly connected to the bottom of the mounting box;

[0014] The second mounting ring is used for being detachably connected to the top of the fixing member; the second mounting ring is provided with a through hole corresponding to the position of the notch on the first mounting ring, and the diameter of the notch is larger than the diameter of the through hole.

[0015] Preferably, the support column further comprises a cavity and a detachable side cover, the interior and the exterior of the cavity are separated by the side cover, and the cavity is used for installing a battery pack.

[0016] Preferably, the installation box comprises a first barrel and a second barrel with openings at both ends, a ventilation plate, a ventilation ring, a conical cover, and a mounting frame;

[0017] The bottom of the first barrel is fixedly connected to the top of the support member; the diameter of the second barrel is greater than the diameter of the first barrel;

[0018] The ventilation plate is fixedly installed in the first barrel, and a plurality of ventilation holes are provided on the upper and lower surfaces of the ventilation plate;

[0019] The inner ring periphery of the ventilation ring is fixedly connected to the top periphery of the first barrel, the outer ring periphery of the ventilation ring is fixedly connected to the inner wall of the second barrel, and the upper and lower surfaces of the ventilation ring are provided with a plurality of ventilation holes;

[0020] The bottom periphery of the conical cover is fixedly connected to the top periphery of the second barrel;

[0021] The mounting frame is fixed above the ventilation plate, and the detection node circuit board is fixed on the mounting frame.

[0022] Preferably, the distance between the bottom of the ventilation plate and the bottom of the first barrel is 3-5 cm.

[0023] Preferably, the detection module also includes a drainage fan, which is installed on the upper surface of the mounting frame; the detection node circuit board is installed on the lower surface of the mounting frame; the wind direction of the drainage fan is toward the top of the first barrel; and the drainage fan is connected to the battery pack.

[0024] Preferably, the mounting frame is a cross structure, and the four ends of the mounting frame are fixedly connected to the inner wall of the first barrel.

[0025] A forest fire monitoring system, comprising a plurality of the forest fire monitoring devices, and also comprising a coordinator, a communication module, a host computer, and an alarm module connected in sequence;

[0026] The coordinator is connected to the Zigbee processing modules of the forest fire monitoring devices respectively, and is used to collect data collected by each forest fire monitoring device;

[0027] The communication module is used to send the data collected by the coordinator to the host computer;

[0028] The host computer is used to process the data sent by the communication module and determine whether a fire occurs;

[0029] The alarm module is used to send out an alarm signal when the host computer determines that a fire occurs.

[0030] Preferably, the alarm module comprises a data transmission unit DTU, and the data transmission unit DTU sends an alarm text message to relevant personnel via GPRS communication.

[0031] Compared with the existing technology, the utility model has the following beneficial effects:

[0032] 1. The forest fire monitoring device in the utility model can be inserted into the soil layer of the forest, which is easy to install and uses Zigbee communication to upload data. No wiring is required, which effectively reduces the monitoring cost. It has low power consumption, low cost and high security. It effectively solves the problem that the traditional forest fire monitoring system is composed of multiple wired network cameras, the wiring is restricted by the geographical environment, the comprehensive cost is high, and the specific conditions of the forest cannot be actively monitored in real time.

[0033] 2. The utility model forest fire monitoring system can upload data such as smoke, temperature and humidity, combustible gas and light intensity to the host computer in real time, and the management personnel can observe the changes of each data in real time and intuitively. Through the alarm module, an alarm signal will be issued when a fire is judged to occur, which enhances the early warning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0035] Figure 1 It is a structural schematic diagram of the device of the utility model;

[0036] Figure 2 It is a schematic diagram of the principle of the device of the utility model;

[0037] Figure 3 It is a circuit schematic diagram of the detection node circuit board of the utility model;

[0038] Figure 4 It is a specific circuit diagram of the temperature and humidity sensor unit of the utility model;

[0039] Figure 5 It is a specific circuit diagram of the smoke sensor unit of the utility model;

[0040] Figure 6 It is a specific circuit diagram of the light sensor unit of the utility model;

[0041] Figure 7 It is a structural schematic diagram of a fixing member of the device of the utility model;

[0042] Figure 8 It is a structural schematic diagram of the support member of the device of the utility model;

[0043] Fig. 9 It is a structural schematic diagram of the installation box of the device of the utility model;

[0044] Fig.10 yes Fig. 9 sectional view of

[0045] Fig.11 This is a system schematic diagram of the utility model.

[0046] Description of main reference numerals:

[0047] 1-fixing member, 11-oblique section, 12-first mounting ring, 121-notch;

[0048] 2-support member, 21-second mounting ring, 22-support column, 23-support rod, 24-inlet pipe, 211-through hole, 221-side cover;

[0049] 3-installation box, 31-first cylinder, 32-second cylinder, 33-ventilation plate, 34-ventilation ring, 35-conical cover, 36-installation frame;

[0050] 4-Drainage fan;

[0051] 5-Detect node circuit board. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0054] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0056] Embodiment 1:

[0057] like Figure 1-2 As shown, this embodiment provides a forest fire monitoring device, including a fixing member 1, a supporting member 2, a mounting box 3, and a detection module.

[0058] The fixing member 1 is used for cutting on the forest ground; the bottom of the support member 2 is detachably connected to the top of the fixing member 1; the bottom of the installation box 3 is fixedly connected to the top of the support member 2; and the detection module is installed inside the installation box 3.

[0059] The detection module includes a battery pack and a detection node circuit board 5; the detection node circuit board 5 includes a temperature and humidity sensor unit, a smoke sensor unit, a combustible gas detection sensor unit, a light sensor unit, and a Zigbee processing module. The detection module is used to collect temperature and humidity, smoke, combustible gas and light intensity data in the forest, and transmit them to external devices through the Zigbee processing module; the battery pack is respectively connected to the temperature and humidity sensor unit, the smoke sensor unit, the combustible gas detection sensor unit, the light sensor unit, and the Zigbee processing module to provide working power.

[0060] The working principle of the utility model is:

[0061] The fixing part 1 is inserted into the forest ground, the supporting part 2 is installed on the top of the fixing part 1, and the detection node circuit board 5 collects the temperature and humidity, smoke, combustible gas and light intensity data in the forest, and transmits it to the external device through the Zigbee processing module.

[0062] The Zigbee processing module uses the CC2530 chip. CC2530 is a true system-on-chip SoC solution for 2.4-GHz IEEE802.15.4 ZigBee and RF4CE applications. It can build powerful network nodes with very low total material costs. CC2530 combines the excellent performance of leading RF transceivers, industry-standard enhanced 8051 CPU, in-system programmable flash memory, 8-KB RAM and many other powerful features. The circuit diagram is as follows Figure 3 shown.

[0063] The temperature and humidity sensor unit includes a DHT11 temperature and humidity sensor. The DHT11 temperature and humidity sensor uses a single bus protocol, that is, it uses a DATA line to send and receive data. Its circuit diagram is as follows Figure 4As shown, it also includes a power indicator light D1, a first current limiting resistor R1, and a second current limiting resistor R2. One end of the first current limiting resistor R1 is connected to the power supply VCC, and the other end is connected to the DATA pin of the DHT11 temperature and humidity sensor; the anode of the power indicator light D1 is connected to the power supply VCC, and the cathode is connected to one end of the second current limiting resistor R2, and the other end of the second current limiting resistor R2 is grounded. Among them, when the temperature and humidity sensor unit is working normally, the power indicator light D1 is on, and the first current limiting resistor R1 is used to limit current to protect the DATA pin of the DHT11 temperature and humidity sensor. The second current limiting resistor R2 is used to limit current to protect the power indicator light D1. The DATA pin of the DHT11 temperature and humidity sensor is connected to the P0.7 pin of the CC2530 chip. The NC pin of the DHT11 temperature and humidity sensor is left floating, the VCC pin of the DHT11 temperature and humidity sensor is connected to the VCC pin of the CC2530 chip, and the GND pin of the DHT11 temperature and humidity sensor is connected to the GND pin of the CC2530 chip.

[0064] The smoke sensor unit includes the MQ-2 smoke sensor. The MQ-2 smoke sensor uses tin dioxide (SnO2) with low conductivity in clean air and is a surface ion N-type semiconductor. When the MQ-2 smoke sensor is in an environment of 200 to 300 degrees Celsius, tin dioxide adsorbs oxygen in the air to form negative oxygen ions, which reduces the electron density in the semiconductor and increases its resistance. When in contact with smoke, if the potential barrier at the grain boundary changes due to the adjustment of the smoke, it will cause a change in surface conductivity. This can be used to obtain information about the presence of this smoke. The greater the concentration of the smoke, the greater the conductivity, the lower the output resistance, and the greater the output analog signal. The circuit diagram of the smoke sensor unit is shown below. Figure 5 As shown. Among them, the 1st pin, 2nd pin, 3rd pin, 4th pin and 6th pin of the MQ-2 smoke sensor are connected to the 5V power supply respectively, the 5th pin is connected to one end of the third current limiting resistor R3, and the other end of the third current limiting resistor R3 is grounded. In order to prevent the heating current of the 2nd and 5th pins from being too large and burning the MQ-2 sensor, the third current limiting resistor R3 is connected in series for current limiting protection. The light-emitting diode LED1 is the power indicator light of the smoke sensor unit, which will light up when the smoke sensor unit is powered normally. The light-emitting diode LED2 is an alarm light, which will light up to alarm when the smoke concentration exceeds the threshold. The current limiting resistor R6 is used to protect the 4th and 6th pins of the MQ-2 smoke sensor. The capacitor C4 plays a filtering role, blocking the DC through the AC. The 3rd pin of the MQ pin header is D0, which is left floating; the 4th pin is the A0 pin connected to the P0.6 pin of the CC2530 chip.

[0065] The combustible gas detection sensor unit includes the MQ-7 combustible gas detection sensor. The specific principle is based on the change of electrical properties of semiconductor materials under the action of gas, and the gas concentration is detected by measuring this change. Specifically, there is a small heater inside the MQ-7 combustible gas sensor, which is heated by electric current to increase the working environment temperature of the sensor and accelerate the movement of gas molecules. The surface of the semiconductor gas sensor in the module is coated with a layer of special metal oxide. When the CO gas in the air contacts the metal oxide at a specific temperature, an oxidation-reduction reaction occurs, causing the resistance of the metal oxide surface to change. When the CO concentration in the air increases, the resistance decreases, thereby outputting an analog signal.

[0066] The light sensor unit includes an LM393 comparator and a photoresistor. The principle of the photoresistor is: when the semiconductor photosensitive material is exposed to light, the absorbed light energy excites the internal electron-hole pairs, the conductivity is enhanced, and the resistance value decreases. When the light disappears, the free electrons and hole pairs recombine, and the value of the photoresistor returns to its original state. The resistance change of the photoresistor is proportional to the light intensity, so the resistance change of the photoresistor can be detected by a measuring circuit to achieve sensitive detection of light. A photoresistor is usually composed of a photosensitive layer and an electrode. The photosensitive layer is generally made of semiconductor materials, such as cadmium sulfide, cadmium selenide, etc. The circuit diagram of the light sensor unit is shown below. Figure 6 As shown, the A0 pin is connected to the P0.5 pin of the CC2530 chip, and the D0 pin is left floating.

[0067] The detection module also includes an identity information module, which can be in the form of Beidou positioning or RFID tags, and can uniquely identify the location of the detection module. The identity information of the detection module is uploaded to the external device together with the collected data through the Zigbee processing module.

[0068] The detection module also includes a control alarm module, which is connected to the detection node circuit board 5 module. When any of the temperature, humidity, smoke, combustible gas and light intensity collected by the detection node circuit board 5 exceeds a preset value or is lower than a preset value, a sound signal is issued to alarm, so as to facilitate forest patrol personnel to check. The control alarm module includes a buzzer.

[0069] like Figure 7 As shown, the fixing member 1 is a tubular structure, and an inclined section 11 is provided at the bottom of the fixing member 1 for quickly piercing the soil layer of the forest for installation and fixing; a first mounting ring 12 is provided at the top of the fixing member 1, and three notches 121 with an angle of 120° to each other are provided on the first mounting ring 12, and the notches 121 are used for detachable connection with the support member 2 by bolts.

[0070] like Figure 8As shown, the support member 2 includes a second mounting ring 21, a support column 22, and a support rod 23;

[0071] The second mounting ring 21 is fixedly connected to the bottom of the supporting column 22, the top edge of the supporting column 22 is fixedly connected to the bottom of the support rod 23, and the top of the support rod 23 is fixedly connected to the bottom of the mounting box 3, which can play a role in diverting rainwater.

[0072] The second mounting ring 21 is used for detachable connection with the top of the fixing member 1; the second mounting ring 21 is provided with three through holes 211 with an angle of 120° to each other corresponding to the positions of the notches 121 on the first mounting ring 12, and the diameter of the notches 121 is larger than the diameter of the through holes 211, so as to facilitate quick alignment of the through holes 211 and fixed connection by bolts.

[0073] The support column 22 also includes a cavity and a detachable side cover 221. The inside and outside of the cavity are separated by the side cover 221. The cavity is used to install a battery pack. The provision of the detachable side cover 221 facilitates the replacement of the battery pack of the detection module. The support member 2 also includes an inlet pipe 24. The top end of the inlet pipe 24 is connected to the bottom of the installation box 3, and the bottom end of the inlet pipe 24 is connected to the cavity 221, so that the battery pack of the detection module is connected to the detection node circuit board 5 through a wire.

[0074] like Figure 9-10 As shown, the installation box 3 includes a first cylinder 31 and a second cylinder 32 with openings at both ends, a ventilation plate 33, a ventilation ring 34, a conical cover 35, and a mounting frame 36;

[0075] The bottom of the first barrel 31 is fixedly connected to the top of the support member 2; specifically, the top of the support rod 23 is fixedly connected to the bottom edge of the first barrel 31, which can play a role in guiding rainwater. The diameter of the second barrel 32 is greater than that of the first barrel 31.

[0076] The ventilation plate 33 is fixedly installed in the first cylinder 31 and can separate the internal space of the first cylinder 31 from the external space. The upper and lower surfaces of the ventilation plate 33 are provided with a plurality of ventilation holes, which can realize the convection of air inside and outside the first cylinder 31.

[0077] The inner ring periphery of the ventilation ring 34 is fixedly connected to the top periphery of the first barrel 31, and the outer ring periphery of the ventilation ring 34 is fixedly connected to the inner wall of the second barrel 32. The ventilation ring 34 can separate the inner space of the second barrel 32 from the outer space; the upper and lower surfaces of the ventilation ring 34 are provided with a plurality of ventilation holes, which can realize the convection of air inside and outside the second barrel 32;

[0078] The bottom periphery of the conical cover 35 is fixedly connected to the top periphery of the second cylinder 32;

[0079] The mounting frame 36 is fixed above the ventilation plate 33 , and the detection node circuit board 5 is fixed on the mounting frame 36 .

[0080] The distance between the bottom of the ventilation plate 33 and the bottom of the first barrel 31 is 3-5 cm, which can prevent rainwater from flowing from the barrel wall of the first barrel 31 to the ventilation plate 33.

[0081] The detection module also includes a drainage fan 4, which is installed in the middle of the upper surface of the mounting frame 36; the detection node circuit board 5 is installed in the middle of the lower surface of the mounting frame 36; the wind direction of the drainage fan 4 is toward the top of the first barrel 31, which can prevent moisture in the air from accumulating on the surface of the detection circuit board of the detection device; the drainage fan 4 is connected to the battery pack.

[0082] Specifically, the mounting frame 36 is a cross structure, and the four ends of the mounting frame 36 are fixedly connected to the inner wall of the first barrel 31 .

[0083] Embodiment 2:

[0084] like Fig.11 As shown, this embodiment provides a forest fire monitoring system, including a plurality of forest fire monitoring devices, and also includes a coordinator, a communication module, a host computer, and an alarm module connected in sequence;

[0085] The coordinator is connected to the Zigbee processing modules of the forest fire monitoring devices respectively to collect data collected by each forest fire monitoring device;

[0086] The communication module is used to send the data collected by the coordinator to the host computer;

[0087] The host computer is used to process the data sent by the communication module and determine whether a fire has occurred;

[0088] The alarm module is used to send out an alarm signal when the host computer determines that a fire has occurred.

[0089] The alarm module includes a data transmission unit DTU, and the data transmission unit DTU sends an alarm text message to relevant personnel through GPRS communication.

[0090] The working principle of the system of the utility model is as follows: each coordinator is connected to the Zigbee processing modules of multiple forest fire monitoring devices, and can collect data collected by multiple forest fire monitoring devices. In addition, multiple coordinators are set according to needs, and each coordinator is matched with a communication module. The communication module adopts a 4G module, and the data collected by the coordinator can be uploaded to the host computer. After the host computer determines that a fire has occurred, the alarm text message is sent to relevant personnel through the data transmission unit DTU.

[0091] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A forest fire monitoring device, characterized in that: include: A fixing member (1) for implanting the cuttings on the forest floor; A support member (2), wherein the bottom of the support member (2) is detachably connected to the top of the fixing member (1); An installation box (3), the bottom of the installation box (3) being fixedly connected to the top of the support member (2); A detection module, the detection module being installed inside the installation box (3); The detection module comprises a battery pack and a detection node circuit board (5); the detection node circuit board (5) comprises a temperature and humidity sensor unit, a smoke sensor unit, a combustible gas detection sensor unit, a light sensor unit, and a Zigbee processing module; the battery pack is connected to the temperature and humidity sensor unit, the smoke sensor unit, the combustible gas detection sensor unit, the light sensor unit, and the Zigbee processing module respectively; The detection module is used to collect temperature and humidity, smoke, combustible gas and light intensity data in the forest, and transmit it to external devices through the Zigbee processing module.

2. A forest fire monitoring device according to claim 1, characterized in that: The fixing member (1) is a tubular structure, and an oblique section (11) is provided at the bottom of the fixing member (1) for quickly piercing the soil layer of the forest for installation and fixing; a first installation ring (12) is provided at the top of the fixing member (1), and a notch (121) is provided on the first installation ring (12), and the notch (121) is used for detachably connecting with the support member (2) via bolts.

3. A forest fire monitoring device according to claim 1, characterized in that: The support member (2) comprises a second mounting ring (21), a support column (22), and a support rod (23); The second mounting ring (21) is fixedly connected to the bottom of the supporting column (22), the top edge of the supporting column (22) is fixedly connected to the bottom of the supporting rod (23), and the top of the supporting rod (23) is fixedly connected to the bottom of the mounting box (3); The second mounting ring (21) is used for being detachably connected to the top of the fixing member (1); the second mounting ring (21) is provided with a through hole (211) corresponding to the position of the notch (121) on the first mounting ring (12), and the diameter of the notch (121) is larger than the diameter of the through hole (211).

4. A forest fire monitoring device according to claim 3, characterized in that: The support column (22) further comprises a cavity and a detachable side cover (221); the interior and exterior of the cavity are separated by the side cover (221); and the cavity is used for installing a battery pack.

5. A forest fire monitoring device according to claim 1, characterized in that: The installation box (3) comprises a first cylinder (31) and a second cylinder (32) with openings at both ends, a ventilation plate (33), a ventilation ring (34), a conical cover (35), and a mounting frame (36); The bottom of the first barrel (31) is fixedly connected to the top of the support member (2); the diameter of the second barrel (32) is greater than the diameter of the first barrel (31); The ventilation plate (33) is fixedly installed in the first barrel (31), and a plurality of ventilation holes are provided on the upper and lower surfaces of the ventilation plate (33); The inner circumference of the ventilation ring (34) is fixedly connected to the top circumference of the first barrel (31), the outer circumference of the ventilation ring (34) is fixedly connected to the inner wall of the second barrel (32), and the upper and lower surfaces of the ventilation ring (34) are provided with a plurality of ventilation holes; The bottom periphery of the conical cover (35) is fixedly connected to the top periphery of the second barrel (32); The mounting frame (36) is fixed above the ventilation plate (33), and the detection node circuit board (5) is fixed on the mounting frame (36).

6. A forest fire monitoring device according to claim 5, characterized in that: The distance between the bottom of the ventilation plate (33) and the bottom of the first barrel (31) is 3-5 cm.

7. A forest fire monitoring device according to claim 5, characterized in that: The detection module further comprises a drainage fan (4), the drainage fan (4) being mounted on the upper surface of a mounting frame (36); the detection node circuit board (5) being mounted on the lower surface of the mounting frame (36); the wind direction of the drainage fan (4) being towards the top of the first barrel (31); and the drainage fan (4) being connected to a battery pack.

8. A forest fire monitoring device according to claim 5, characterized in that: The mounting frame (36) is a cross structure, and the four ends of the mounting frame (36) are fixedly connected to the inner wall of the first barrel (31).

9. A forest fire monitoring system, characterized in that: The forest fire monitoring device comprises any one of claims 1 to 8, and further comprises a coordinator, a communication module, a host computer, and an alarm module connected in sequence; The coordinator is connected to the Zigbee processing module of the forest fire monitoring device and is used to collect data collected by each forest fire monitoring device; The communication module is used to send the data collected by the coordinator to the host computer; The host computer is used to process the data sent by the communication module and determine whether a fire occurs; The alarm module is used to send out an alarm signal when the host computer determines that a fire occurs.

10. A forest fire monitoring system according to claim 9, characterized in that: The alarm module includes a data transmission unit DTU, and the data transmission unit DTU sends an alarm text message to relevant personnel through GPRS communication.

Images