CN214010535U - Device for monitoring mountain fire - Google Patents
Device for monitoring mountain fire Download PDFInfo
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- CN214010535U CN214010535U CN202022199419.8U CN202022199419U CN214010535U CN 214010535 U CN214010535 U CN 214010535U CN 202022199419 U CN202022199419 U CN 202022199419U CN 214010535 U CN214010535 U CN 214010535U
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Abstract
The utility model discloses a device for monitoring mountain fire, adopt the shell, visible light imaging module, the visible light window piece, the ultraviolet camera lens, ultraviolet unit detector, signal acquisition circuit and master control circuit realize monitoring mechanism, the ultraviolet camera lens can pass through the ultraviolet ray of wavelength below 280nm, ultraviolet unit detector and signal acquisition circuit are connected, visible light imaging module, signal acquisition circuit and first rotary mechanism are connected with master control circuit respectively, first opening and second opening have been seted up on the shell, the visible light window piece is installed and is sealed first opening at first opening part, the visible light window piece just faces visible light imaging module, the ultraviolet camera lens inlays and establishes at the second opening part, the optical axis of visible light imaging module and the optical axis of ultraviolet camera lens are parallel, ultraviolet unit detector is located the focus of ultraviolet camera lens; the advantages are that on the basis of having lower cost, can carry out accurate location and accurate monitoring to the mountain fire.
Description
Technical Field
The utility model relates to a mountain fire monitoring technology especially relates to a device for monitoring mountain fire.
Background
The terrain of the areas where the power transmission lines used by the power grid in China are located is complex, mountain fire is easily caused by the unique terrain and landform and weather conditions of the areas, the safety of the power transmission lines can be affected by the occurrence of the mountain fire, and if effective precautionary measures are not taken to guarantee the safe operation of the power transmission lines, great hidden danger is brought to the safe operation of the power grid. In the prior art, an infrared imager is mostly adopted to monitor the forest fire. However, in the actual mountain fire detection process, there is a possibility that an automobile normally running on a road, cooking smoke for cooking in a village, normal production operation in a factory, and the like are mistaken as a fire heat source, and further a mountain fire false alarm is generated, which causes a serious false alarm and increases operation cost. In addition, because the infrared imager carries out the cost higher, use infrared imager to carry out mountain fire monitoring and be not convenient for popularize. Therefore, how to adopt lower cost to realize the monitoring of the forest fire, and have higher detection precision, can avoid the false alarm to become the problem that needs to be solved at present.
In order to solve the problem of false alarm, chinese patent No. 201520719704.4 discloses an ultraviolet mountain fire detection all-in-one machine, which comprises a control host, wherein the control host is electrically connected with a power supply device, an electricity storage device, a 360-degree holder, an ultraviolet flame detector, a camera and a wireless communication module, and the ultraviolet flame detector and the camera are installed on the 360-degree holder and are driven to rotate by the 360-degree holder. Above-mentioned ultraviolet mountain fire detects all-in-one adopts ultraviolet flame detector to replace traditional infrared imager, has solved infrared imager defect with high costs. However, the ultraviolet band which can be detected by the ultraviolet flame detector in the integrated ultraviolet mountain fire detection machine is not explicitly stated, and once the ultraviolet light detected by the ultraviolet flame detector is interfered by other light rays which are positioned in the same band as the ultraviolet light, the final monitoring precision is not high directly, for example, the ultraviolet light in the 280-plus 380nm band is easily interfered by the sunlight because the sunlight on the earth surface is very strong in the band; in addition, the ultraviolet light path constructed by the ultraviolet flame detector and the visible light path constructed by the camera have independent fields of view, so that ultraviolet signals in the forest fire acquired by the ultraviolet flame detector are unrelated to visible light images acquired by the camera, and further the ultraviolet signals in the forest fire are separated from the background of the visible light, and the occurrence position of the forest fire cannot be accurately positioned.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a device for monitoring mountain fire that can carry out accurate location and accurate monitoring to mountain fire on the basis that has lower cost is provided.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a device for monitoring mountain fire comprises a holder, a monitoring mechanism arranged on the holder and a first rotating mechanism for driving the holder to realize 360-degree circular rotation, wherein the monitoring mechanism comprises a shell, a visible light imaging module, a visible light window, an ultraviolet lens, an ultraviolet unit detector, a signal acquisition circuit and a main control circuit, the ultraviolet lens can pass through ultraviolet light with the wavelength of below 280nm, the visible light imaging module, the ultraviolet unit detector, the signal acquisition circuit and the main control circuit are respectively arranged in the shell, the ultraviolet unit detector is connected with the signal acquisition circuit, the visible light imaging module, the signal acquisition circuit and the first rotating mechanism are respectively connected with the main control circuit, the main control circuit is communicated with terminal equipment in a monitoring room through a wireless network, the ultraviolet unit detector is characterized in that the shell is provided with a first opening and a second opening, the visible light window is installed at the first opening to seal the first opening, the visible light window is right opposite to the visible light imaging module, the ultraviolet lens is embedded at the second opening, the optical axis of the visible light imaging module is parallel to the optical axis of the ultraviolet lens, and the ultraviolet unit detector is located at the focus of the ultraviolet lens.
The first rotating mechanism is realized by adopting a first motor, the visible light imaging module comprises a visible light lens, a visible light imaging device, a driving circuit for driving the visible light imaging device to work and a second motor for zooming or focusing the visible light lens, the visible light lens is connected with the second motor, the main control circuit comprises a CPU (central processing unit), an image processing module, a 4G module, a first motor control module and a second motor control module, the CPU is respectively connected with the image processing module, the 4G module, the first motor control module and the second motor control module, the image processing module is respectively connected with the 4G module and the driving circuit, and the 4G module is communicated with the terminal equipment through a wireless network, the terminal equipment can communicate with the CPU through the 4G module; the CPU is connected with the signal acquisition circuit, the first motor control module is connected with the first motor, the first motor control module is used for driving the first motor to rotate under the control of the CPU so as to enable the holder to rotate synchronously, the second motor control module is connected with the second motor, and the second motor control module is used for driving the second motor to rotate under the control of the CPU so as to zoom or focus the visible light lens.
The ultraviolet lens is a converging lens, the focal length of the ultraviolet lens is recorded as f, wherein f is more than 20mm and less than 400mm, the field angle of the ultraviolet lens is recorded as beta, the field angle of the visible light lens is recorded as gamma, wherein gamma is more than or equal to 60 degrees and less than or equal to 5 degrees, beta is more than or equal to 2 degrees and less than or equal to 60 degrees, the distance between the optical axis of the visible light lens and the optical axis of the ultraviolet lens is recorded as L, and wherein L is more than 20mm and less than 500 mm. In this configuration, when the angle of view of the visible light lens is greater than or equal to the angle of view of the ultraviolet lens, it is convenient to determine the relative position of the mountain fire in the background object.
The ultraviolet unit detector is any one of a GaN (gallium nitride) ultraviolet detector and a SiC (silicon carbide) ultraviolet detector, and the response waveband is below 280 nm.
The power supply mode of the device for monitoring the mountain fire adopts solar power supply or wind power generation or complementary power generation of the solar power supply and the wind power generation.
Compared with the prior art, the device of the utility model has the advantages that the monitoring mechanism is composed of the shell, the visible light imaging module, the visible light window, the ultraviolet lens, the ultraviolet unit detector, the signal acquisition circuit and the main control circuit, the ultraviolet lens can pass through ultraviolet light with the wavelength below 280nm, the visible light imaging module, the ultraviolet unit detector, the signal acquisition circuit and the main control circuit are respectively arranged in the shell, the ultraviolet unit detector is connected with the signal acquisition circuit, the visible light imaging module, the signal acquisition circuit and the first rotating mechanism are respectively connected with the main control circuit, the main control circuit communicates with the terminal device in the monitoring room through a wireless network, the shell is provided with a first opening and a second opening, the visible light window is arranged at the first opening to seal the first opening, the visible light window is just opposite to the visible light imaging module, the ultraviolet lens is embedded at the second opening, the optical axis of the visible light imaging module is parallel to the optical axis of the ultraviolet lens, the ultraviolet unit detector is positioned at the focus of the ultraviolet lens, when a worker generates a working instruction at a terminal device and sends the working instruction to the main control circuit, the device for monitoring mountain fire enters a working state, the main control circuit controls the first rotating mechanism to rotate once along the same direction at intervals, the rotating angle is alpha, the alpha is equal to the visual angle of the ultraviolet lens, the holder synchronously rotates alpha under the driving of the first rotating mechanism, light rays generated by a target in a monitoring area respectively irradiate the visible light imaging module and the ultraviolet lens, the signal acquisition circuit acquires an output signal of the ultraviolet unit detector in real time, generates a sampling signal and sends the sampling signal to the main control circuit, the main control circuit judges whether ultraviolet light exists or not in real time based on the sampling signal output by the signal acquisition circuit, when the light rays generated by the target do not include ultraviolet light, the ultraviolet lens is not penetrated by ultraviolet light, the ultraviolet unit detector cannot detect the ultraviolet light, the main control circuit judges that the ultraviolet light does not exist at present, and the current working state of the first rotating mechanism is unchanged at the moment; when the light generated by the target comprises ultraviolet light, the ultraviolet light is converged on the ultraviolet unit detector after penetrating through the ultraviolet lens, the ultraviolet unit detector detects the ultraviolet light, the main control circuit judges that the ultraviolet light exists at present, the main control circuit controls the first rotating mechanism to stop rotating, the main control circuit controls the visible light imaging module to generate clear mountain fire visible light and background images thereof, the main control circuit acquires the mountain fire visible light and the background images thereof and performs image processing to obtain processed images and sends the processed images to the terminal equipment, and mountain fire monitoring is realized. Avoided the interference of sunlight and fluorescent lamp at this wave band, the misstatement rate is low, from this the utility model discloses on having lower cost's basis, can carry out accurate location and accurate monitoring to the mountain fire.
Drawings
FIG. 1 is a schematic diagram of the device for monitoring mountain fire according to the present invention;
fig. 2 is a block diagram of a main control circuit of the device for monitoring mountain fire according to the present invention.
Detailed Description
The utility model discloses a device for monitoring mountain fire, it is right below with the embodiment of the attached drawing the utility model discloses a device for monitoring mountain fire does further detailed description.
Example (b): as shown in fig. 1 and 2, a device for monitoring mountain fire comprises a cradle head 1, a monitoring mechanism installed on the cradle head 1, and a first rotating mechanism for driving the cradle head 1 to realize 360-degree circular rotation, wherein the monitoring mechanism comprises a housing 2, a visible light imaging module 3, a visible light window 4, an ultraviolet lens 5, an ultraviolet unit detector 6, a signal acquisition circuit 7, and a main control circuit 8, the ultraviolet lens 5 can pass through ultraviolet light with a wavelength of below 280nm, the visible light imaging module 3, the ultraviolet unit detector 6, the signal acquisition circuit 7, and the main control circuit 8 are respectively arranged in the housing 2, the ultraviolet unit detector 6 is connected with the signal acquisition circuit 7, the visible light imaging module 3, the signal acquisition circuit 7, and the first rotating mechanism are respectively connected with the main control circuit 8, the main control circuit 8 communicates with terminal equipment in a monitoring room through a wireless network, the shell 2 is provided with a first opening and a second opening, the visible light window 4 is installed at the first opening to seal the first opening, the visible light window 4 is right opposite to the visible light imaging module 3, the ultraviolet lens 5 is embedded at the second opening, the optical axis of the visible light imaging module 3 is parallel to the optical axis of the ultraviolet lens 5, and the ultraviolet unit detector 6 is located at the focus of the ultraviolet lens 5.
In this embodiment, the first rotating mechanism is implemented by using a first motor 9, the visible light imaging module 3 includes a visible light lens, a visible light imaging device, a driving circuit for driving the visible light imaging device to work, and a second motor 10 for zooming or focusing the visible light lens, the visible light lens is connected to the second motor 10, the main control circuit 8 includes a CPU, an image processing module, a 4G module, a first motor control module and a second motor control module, the CPU is respectively connected to the image processing module, the 4G module, the first motor control module and the second motor control module, the image processing module is respectively connected to the 4G module and the driving circuit, the 4G module communicates with the terminal device through a wireless network, and the terminal device can communicate with the CPU through the 4G module; the CPU is connected with the signal acquisition circuit 7, the first motor control module is connected with the first motor 9, the first motor control module is used for driving the first motor 9 to rotate under the control of the CPU so as to enable the holder 1 to rotate synchronously, the second motor control module is connected with the second motor 10, and the second motor control module is used for driving the second motor 10 to rotate under the control of the CPU so as to zoom or focus the visible light lens.
In this embodiment, the ultraviolet lens 5 is a converging lens, the focal length of the ultraviolet lens 5 is denoted as f, where 20mm < f <400mm, the field angle of the ultraviolet lens 5 is denoted as β, the field angle of the visible light lens is denoted as γ, where 60 ° < γ >5 °, 2 ° < β < 60 °, and γ > β, and the distance between the optical axis of the visible light lens and the optical axis of the ultraviolet lens 5 is denoted as L, where 20mm < L <500 mm.
In this embodiment, the ultraviolet unit detector 6 is any one of a GaN ultraviolet detector, a SiC ultraviolet detector, and an ultraviolet photomultiplier, and the response band is 280nm or less. The CPU, the image processing module, the 4G module, the first motor control module and the second motor control module are all realized by adopting mature products in the technical field, and the CPU is any one of an ARM (advanced RISC machine), a singlechip, a DSP (digital signal processor) and an FPGA (field programmable gate array) chip.
In this embodiment, the power supply mode of the device for monitoring mountain fire is solar power supply or wind power generation or complementary power generation of the solar power supply and the wind power generation.
Claims (5)
1. A device for monitoring mountain fire comprises a holder, a monitoring mechanism arranged on the holder and a first rotating mechanism for driving the holder to realize 360-degree circular rotation, and is characterized in that the monitoring mechanism comprises a shell, a visible light imaging module, a visible light window, an ultraviolet lens, an ultraviolet unit detector, a signal acquisition circuit and a main control circuit, the ultraviolet lens can pass ultraviolet light with the wavelength below 280nm, the visible light imaging module, the ultraviolet unit detector, the signal acquisition circuit and the main control circuit are respectively arranged in the shell, the ultraviolet unit detector is connected with the signal acquisition circuit, the visible light imaging module, the signal acquisition circuit and the first rotating mechanism are respectively connected with the main control circuit, the main control circuit is communicated with terminal equipment in a monitoring room through a wireless network, the ultraviolet unit detector is characterized in that the shell is provided with a first opening and a second opening, the visible light window is installed at the first opening to seal the first opening, the visible light window is right opposite to the visible light imaging module, the ultraviolet lens is embedded at the second opening, the optical axis of the visible light imaging module is parallel to the optical axis of the ultraviolet lens, and the ultraviolet unit detector is located at the focus of the ultraviolet lens.
2. The device according to claim 1, wherein the first rotating mechanism is implemented by a first motor, the visible light imaging module comprises a visible light lens, a visible light imaging device, a driving circuit for driving the visible light imaging device to operate, and a second motor for zooming or focusing the visible light lens, the visible light lens is connected to the second motor, the main control circuit comprises a CPU, an image processing module, a 4G module, a first motor control module and a second motor control module, the CPU is respectively connected to the image processing module, the 4G module, the first motor control module and the second motor control module, the image processing module is respectively connected to the 4G module and the driving circuit, the 4G module is communicated with the terminal equipment through a wireless network, and the terminal equipment can be communicated with the CPU through the 4G module; the CPU is connected with the signal acquisition circuit, the first motor control module is connected with the first motor, the first motor control module is used for driving the first motor to rotate under the control of the CPU so as to enable the holder to rotate synchronously, the second motor control module is connected with the second motor, and the second motor control module is used for driving the second motor to rotate under the control of the CPU so as to zoom or focus the visible light lens.
3. The device according to claim 1, wherein the uv lens is a converging lens, the focal length of the uv lens is denoted as f, wherein 20mm < f <400mm, the field angle of the uv lens is denoted as β, the field angle of the visible light lens is denoted as γ, wherein 60 ° ≧ γ >5 °, 2 ° < β ≦ 60 °, and γ ≧ β, and the distance between the optical axis of the visible light lens and the optical axis of the uv lens is denoted as L, wherein 20mm < L <500 mm.
4. The device according to claim 1, wherein the ultraviolet unit detector is any one of a GaN ultraviolet detector, a SiC ultraviolet detector and an ultraviolet photomultiplier, and the response band is below 280 nm.
5. A device for monitoring mountain fire as claimed in claim 1, wherein the device for monitoring mountain fire is powered by solar energy or wind power or a combination thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199419.8U CN214010535U (en) | 2020-09-30 | 2020-09-30 | Device for monitoring mountain fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022199419.8U CN214010535U (en) | 2020-09-30 | 2020-09-30 | Device for monitoring mountain fire |
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| Publication Number | Publication Date |
|---|---|
| CN214010535U true CN214010535U (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022199419.8U Active CN214010535U (en) | 2020-09-30 | 2020-09-30 | Device for monitoring mountain fire |
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| CN (1) | CN214010535U (en) |
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- 2020-09-30 CN CN202022199419.8U patent/CN214010535U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A device for monitoring mountain fire Effective date of registration: 20220927 Granted publication date: 20210820 Pledgee: Ningbo Tianjin Enterprise Service Co.,Ltd. Pledgor: NINGBO ABNEY INFRARED TECHNOLOGY CO.,LTD. Registration number: Y2022980016558 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |